WIP: [AMDGPU] Don't define _SGPR forms of Real SMEM instructions on GFX10+

[foad]

Summary

On GFX10+ there is no encoding for the _SGPR form of SMEM instructions.
Only _IMM and _SGPR_IMM make sense.

WIP: I have only done GFX10. I need to make the same changes for GFX11.

[foad]

llvm/lib/Target/AMDGPU/SMInstructions.td

978

I am unhappy that there is so much repetition here. Every GFX10 Real instruction has to refine the whole InOperandList just so it can use a different operand type for $offset to get the disassembler to print it in the right way.

I would love to hear ideas for a better way to do this.

llvm/test/MC/AMDGPU/gfx10_asm_smem.s

1365

These assembler changes are intentional and (I think) desirable. Previously these two GFX10 instructions would be assembled to identical binary, but the assembler would print them differently:

s_load_dword s1, s[2:3], 0x0
s_load_dword s1, s[2:3], null

Output of llvm-mc -arch=amdgcn -mcpu=gfx1010 -show-encoding:

	s_load_dword s1, s[2:3], 0x0            ; encoding: [0x41,0x00,0x00,0xf4,0x00,0x00,0x00,0xfa]
	s_load_dword s1, s[2:3], null           ; encoding: [0x41,0x00,0x00,0xf4,0x00,0x00,0x00,0xfa]

I claim that this is wrong, and the assembler should always print them in the same way that a disassembly of the assembled binary would.

Unfortunately this causes a lot of churn in codegen tests.

[Joe_Nash]

llvm/lib/Target/AMDGPU/SMInstructions.td

978

I don't think there is a way to set one item within the list. You could maybe replace the list with !foreach, but only modifying one item.
Or
SM_Real copies the InOperandList from the pseudo. I assume you want the real and pseduo to be different, because otherwise that operand class change would do more than just affect the disassembler.
You could build the entire InOperandList in SM_Real. So here you would only have to override one type.
But that would repeat the work of building the InOperandList in the pseudo.
It would scale better if we think we would need to do more field overrides in Real instructions only, but it would be more complicated.
Or
I think overriding InOperandList here is pretty reasonable.

llvm/test/MC/AMDGPU/gfx10_asm_smem.s

1365

I'm pretty sure before this patch whenever we printed 'null' it meant SGPR_NULL. So that is a change.
On the other hand, if you asked to assemble an SMem instruction with null (assume offset:0x0) or with offset:0x0 (assume soffset null) it mapped to the same binary. I think its fine to choose a canonical way to print this.

[arsenm]

probably needs a rebase

llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.h

private:
   void printOffset0(const MCInst *MI, unsigned OpNo, const MCSubtargetInfo &STI,
                     raw_ostream &O);
   void printOffset1(const MCInst *MI, unsigned OpNo, const MCSubtargetInfo &STI,
                     raw_ostream &O);
   void printSMRDOffset8(const MCInst *MI, unsigned OpNo,
                        const MCSubtargetInfo &STI, raw_ostream &O);
   void printSMEMOffset(const MCInst *MI, unsigned OpNo,
                        const MCSubtargetInfo &STI, raw_ostream &O);
+  void printSMEMOffsetNull(const MCInst *MI, unsigned OpNo,
+                           const MCSubtargetInfo &STI, raw_ostream &O);
   void printSMEMOffsetMod(const MCInst *MI, unsigned OpNo,
                           const MCSubtargetInfo &STI, raw_ostream &O);
+  void printSMEMOffsetModOpt(const MCInst *MI, unsigned OpNo,
+                             const MCSubtargetInfo &STI, raw_ostream &O);
   void printSMRDLiteralOffset(const MCInst *MI, unsigned OpNo,
                               const MCSubtargetInfo &STI, raw_ostream &O);
   void printGDS(const MCInst *MI, unsigned OpNo, const MCSubtargetInfo &STI,
                 raw_ostream &O);
   void printCPol(const MCInst *MI, unsigned OpNo,
                  const MCSubtargetInfo &STI, raw_ostream &O);
   void printSWZ(const MCInst *MI, unsigned OpNo, const MCSubtargetInfo &STI,
                 raw_ostream &O);

llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.cpp

void AMDGPUInstPrinter::printSMRDOffset8(const MCInst *MI, unsigned OpNo,
                                         const MCSubtargetInfo &STI,
                                         raw_ostream &O) {
   printU32ImmOperand(MI, OpNo, STI, O);
 }
 
 void AMDGPUInstPrinter::printSMEMOffset(const MCInst *MI, unsigned OpNo,
                                         const MCSubtargetInfo &STI,
                                         raw_ostream &O) {
+  // Print immediate offset.
   O << formatHex(MI->getOperand(OpNo).getImm());
 }
 
+void AMDGPUInstPrinter::printSMEMOffsetNull(const MCInst *MI, unsigned OpNo,
+                                            const MCSubtargetInfo &STI,
+                                            raw_ostream &O) {
+  // Print immediate offset or "null" if offset is 0.
+  if (MI->getOperand(OpNo).getImm() == 0)
+    O << "null";
+  else
+    printSMEMOffset(MI, OpNo, STI, O);
+}
+
 void AMDGPUInstPrinter::printSMEMOffsetMod(const MCInst *MI, unsigned OpNo,
                                            const MCSubtargetInfo &STI,
                                            raw_ostream &O) {
+  // Print immediate offset as a modifier.
   O << " offset:";
   printSMEMOffset(MI, OpNo, STI, O);
 }
 
+void AMDGPUInstPrinter::printSMEMOffsetModOpt(const MCInst *MI, unsigned OpNo,
+                                              const MCSubtargetInfo &STI,
+                                              raw_ostream &O) {
+  // Print immediate offset as a modifier if it is non-zero.
+  if (MI->getOperand(OpNo).getImm())
+    printSMEMOffsetMod(MI, OpNo, STI, O);
+}
+
 void AMDGPUInstPrinter::printSMRDLiteralOffset(const MCInst *MI, unsigned OpNo,
                                                const MCSubtargetInfo &STI,
                                                raw_ostream &O) {
   printU32ImmOperand(MI, OpNo, STI, O);
 }
 
 void AMDGPUInstPrinter::printGDS(const MCInst *MI, unsigned OpNo,
                                  const MCSubtargetInfo &STI, raw_ostream &O) {

llvm/lib/Target/AMDGPU/SMInstructions.td

 //===---- SMInstructions.td - Scalar Memory Instruction Definitions -------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 
 def smrd_offset_8 : ImmOperand<i32, "SMRDOffset8", 1>;
 
 let OperandType = "OPERAND_IMMEDIATE",
     EncoderMethod = "getSMEMOffsetEncoding",
     DecoderMethod = "decodeSMEMOffset" in {
 def smem_offset : ImmOperand<i32, "SMEMOffset", 1>;
+let PrintMethod = "printSMEMOffsetNull" in
+  def smem_offset_null : ImmOperand<i32, "SMEMOffset", 1>;
 def smem_offset_mod : NamedIntOperand<i32, "offset", "SMEMOffsetMod">;
+let PrintMethod = "printSMEMOffsetModOpt" in
+  def smem_offset_mod_opt : NamedIntOperand<i32, "offset", "SMEMOffsetMod">;
 }
 
 //===----------------------------------------------------------------------===//
 // Scalar Memory classes
 //===----------------------------------------------------------------------===//
 
 class SM_Pseudo <string opName, dag outs, dag ins, string asmOps, list<dag> pattern=[]> :
   InstSI <outs, ins, "", pattern>,

 def SGPR_IMM_Offset : OffsetMode<1, 1, "_SGPR_IMM",
                                  (ins SReg_32:$soffset, smem_offset_mod:$offset),
                                  "$soffset$offset">;
 
 class SM_Probe_Pseudo <string opName, RegisterClass baseClass, OffsetMode offsets>
   : SM_Pseudo<opName, (outs),
               !con((ins i8imm:$sdata, baseClass:$sbase), offsets.Ins),
               " $sdata, $sbase, " # offsets.Asm> {
+  RegisterClass BaseClass = baseClass;
   let mayLoad = 0;
   let mayStore = 0;
   let has_glc = 0;
   let LGKM_CNT = 0;
   let ScalarStore = 0;
   let hasSideEffects = 1;
   let has_offset = offsets.HasOffset;
   let has_soffset = offsets.HasSOffset;

 }
 
 class SM_Store_Pseudo <string opName, RegisterClass baseClass,
                        RegisterClass srcClass, OffsetMode offsets>
   : SM_Pseudo<opName, (outs), !con((ins srcClass:$sdata, baseClass:$sbase),
                                    offsets.Ins, (ins CPol:$cpol)),
               " $sdata, $sbase, " # offsets.Asm # "$cpol"> {
   RegisterClass BaseClass = baseClass;
+  RegisterClass SrcClass = srcClass;
   let mayLoad = 0;
   let mayStore = 1;
   let has_glc = 1;
   let has_dlc = 1;
   let has_offset = offsets.HasOffset;
   let has_soffset = offsets.HasSOffset;
   let ScalarStore = 1;
   let PseudoInstr = opName # offsets.Variant;
class SM_Pseudo_Atomic<string opName,
   SM_Atomic_Pseudo<opName,
                    !if(isRet, (outs dataClass:$sdst), (outs)),
                    !con((ins dataClass:$sdata, baseClass:$sbase), offsets.Ins,
                         (ins CPolTy:$cpol)),
                    !if(isRet, " $sdst", " $sdata") #
                      ", $sbase, " # offsets.Asm # "$cpol",
                    isRet>,
   AtomicNoRet <opNameWithSuffix, isRet> {
+  RegisterClass BaseClass = baseClass;
+  RegisterClass DataClass = dataClass;
   let has_offset = offsets.HasOffset;
   let has_soffset = offsets.HasSOffset;
   let PseudoInstr = opNameWithSuffix;
 
   let Constraints = !if(isRet, "$sdst = $sdata", "");
   let DisableEncoding = !if(isRet, "$sdata", "");
 }
 
class SMEM_Real_10Plus_common<bits<8> op, SM_Pseudo ps, string opName,
                               int subtarget, RegisterWithSubRegs sgpr_null> :
     SM_Real<ps, opName>, SIMCInstr<ps.PseudoInstr, subtarget>, Enc64 {
   let Inst{5-0}   = !if(ps.has_sbase, sbase{6-1}, ?);
   let Inst{12-6}  = !if(ps.has_sdst, sdst{6-0}, ?);
   let Inst{25-18} = op;
   let Inst{31-26} = 0x3d;
   // There are SMEM instructions that do not employ any of the offset
   // fields, in which case we need them to remain undefined.
-  let Inst{52-32} = !if(ps.has_offset, offset{20-0}, !if(ps.has_soffset, 0, ?));
+  let Inst{52-32} = !if(ps.has_offset, offset{20-0}, ?);
   let Inst{63-57} = !if(ps.has_soffset, soffset{6-0},
                         !if(ps.has_offset, sgpr_null.HWEncoding{6-0}, ?));
 }
 
 class SMEM_Real_gfx10<bits<8> op, SM_Pseudo ps>
     : SMEM_Real_10Plus_common<op, ps, ps.Mnemonic, SIEncodingFamily.GFX10,
                               SGPR_NULL_gfxpre11> {
   let AssemblerPredicate = isGFX10Only;
   let DecoderNamespace = "GFX10";
   let Inst{14}    = !if(ps.has_dlc, cpol{CPolBit.DLC}, ?);
   let Inst{16}    = !if(ps.has_glc, cpol{CPolBit.GLC}, ?);
 }
 
 class SMEM_Real_Load_gfx10<bits<8> op, string ps>
     : SMEM_Real_gfx10<op, !cast<SM_Pseudo>(ps)>;
 
 multiclass SM_Real_Loads_gfx10<bits<8> op> {
   defvar ps = NAME;
-  def _IMM_gfx10 : SMEM_Real_Load_gfx10<op, ps#"_IMM">;
-  def _SGPR_gfx10 : SMEM_Real_Load_gfx10<op, ps#"_SGPR">;
-  def _SGPR_IMM_gfx10 : SMEM_Real_Load_gfx10<op, ps#"_SGPR_IMM">;
+  defvar immPs = !cast<SM_Load_Pseudo>(ps#_IMM);
+  def _IMM_gfx10 : SMEM_Real_Load_gfx10<op, ps#"_IMM"> {
+    let InOperandList = (ins immPs.BaseClass:$sbase, smem_offset_null:$offset, CPol:$cpol);
+  }
+
+  defvar sgprImmPs = !cast<SM_Load_Pseudo>(ps#_SGPR_IMM);
+  def _SGPR_IMM_gfx10 : SMEM_Real_Load_gfx10<op, ps#"_SGPR_IMM"> {
+    let InOperandList = (ins sgprImmPs.BaseClass:$sbase, SReg_32:$soffset, smem_offset_mod_opt:$offset, CPol:$cpol);
+  }
 }
 
 class SMEM_Real_Store_gfx10<bits<8> op, SM_Pseudo ps> : SMEM_Real_gfx10<op, ps> {
   bits<7> sdata;
 
   let sdst = ?;
   let Inst{12-6} = !if(ps.has_sdst, sdata{6-0}, ?);
 }
 
 multiclass SM_Real_Stores_gfx10<bits<8> op> {
   defvar ps = NAME;
   defvar immPs = !cast<SM_Store_Pseudo>(ps#_IMM);
-  def _IMM_gfx10 : SMEM_Real_Store_gfx10 <op, immPs>;
-
-  defvar sgprPs = !cast<SM_Store_Pseudo>(ps#_SGPR);
-  def _SGPR_gfx10 : SMEM_Real_Store_gfx10 <op, sgprPs>;
+  def _IMM_gfx10 : SMEM_Real_Store_gfx10 <op, immPs> {
+    let InOperandList = (ins immPs.SrcClass:$sdata, immPs.BaseClass:$sbase, smem_offset_null:$offset, CPol:$cpol);
+  }
 
   defvar sgprImmPs = !cast<SM_Store_Pseudo>(ps#_SGPR_IMM);
-  def _SGPR_IMM_gfx10 : SMEM_Real_Store_gfx10 <op, sgprImmPs>;
+  def _SGPR_IMM_gfx10 : SMEM_Real_Store_gfx10 <op, sgprImmPs> {
+    let InOperandList = (ins sgprImmPs.SrcClass:$sdata, sgprImmPs.BaseClass:$sbase, SReg_32:$soffset, smem_offset_mod_opt:$offset, CPol:$cpol);
+  }
 }
 
 defm S_LOAD_DWORD            : SM_Real_Loads_gfx10<0x000>;
 defm S_LOAD_DWORDX2          : SM_Real_Loads_gfx10<0x001>;
 defm S_LOAD_DWORDX4          : SM_Real_Loads_gfx10<0x002>;
 defm S_LOAD_DWORDX8          : SM_Real_Loads_gfx10<0x003>;
 defm S_LOAD_DWORDX16         : SM_Real_Loads_gfx10<0x004>;
 

 def S_DCACHE_INV_gfx10               : SMEM_Real_gfx10<0x020, S_DCACHE_INV>;
 
 let SubtargetPredicate = HasScalarStores in {
 def S_DCACHE_WB_gfx10                : SMEM_Real_gfx10<0x021, S_DCACHE_WB>;
 } // End SubtargetPredicate = HasScalarStores
 
 multiclass SM_Real_Probe_gfx10<bits<8> op> {
   defvar ps = NAME;
-  def _IMM_gfx10  : SMEM_Real_Store_gfx10 <op, !cast<SM_Pseudo>(ps#_IMM)>;
-  def _SGPR_gfx10 : SMEM_Real_Store_gfx10 <op, !cast<SM_Pseudo>(ps#_SGPR)>;
-  def _SGPR_IMM_gfx10
-    : SMEM_Real_Store_gfx10 <op, !cast<SM_Pseudo>(ps#_SGPR_IMM)>;
+  def _IMM_gfx10 : SMEM_Real_Store_gfx10 <op, !cast<SM_Pseudo>(ps#_IMM)>;
+  defvar sgprImmPs = !cast<SM_Probe_Pseudo>(ps#_SGPR_IMM);
+  def _SGPR_IMM_gfx10 : SMEM_Real_Store_gfx10 <op, sgprImmPs> {
+    let InOperandList = (ins i8imm:$sdata, sgprImmPs.BaseClass:$sbase, SReg_32:$soffset, smem_offset_mod_opt:$offset);
+  }
 }
 
 defm S_ATC_PROBE        : SM_Real_Probe_gfx10 <0x26>;
 defm S_ATC_PROBE_BUFFER : SM_Real_Probe_gfx10 <0x27>;
 
 class SMEM_Atomic_Real_gfx10 <bits<8> op, SM_Atomic_Pseudo ps>
   : SMEM_Real_gfx10 <op, ps>,
     AtomicNoRet <!subst("_RTN","",NAME), ps.glc> {
 
   bits<7> sdata;
 
   let Constraints = ps.Constraints;
   let DisableEncoding = ps.DisableEncoding;
 
   let cpol{CPolBit.GLC} = ps.glc;
 
   let Inst{14} = !if(ps.has_dlc, cpol{CPolBit.DLC}, 0);
   let Inst{12-6} = !if(ps.glc, sdst{6-0}, sdata{6-0});
 }
 
 multiclass SM_Real_Atomics_gfx10<bits<8> op> {
   defvar ps = NAME;
-  def _IMM_gfx10       : SMEM_Atomic_Real_gfx10 <op, !cast<SM_Atomic_Pseudo>(ps#_IMM)>;
-  def _SGPR_gfx10      : SMEM_Atomic_Real_gfx10 <op, !cast<SM_Atomic_Pseudo>(ps#_SGPR)>;
-  def _SGPR_IMM_gfx10  : SMEM_Atomic_Real_gfx10 <op, !cast<SM_Atomic_Pseudo>(ps#_SGPR_IMM)>;
-  def _IMM_RTN_gfx10   : SMEM_Atomic_Real_gfx10 <op, !cast<SM_Atomic_Pseudo>(ps#_IMM_RTN)>;
-  def _SGPR_RTN_gfx10  : SMEM_Atomic_Real_gfx10 <op, !cast<SM_Atomic_Pseudo>(ps#_SGPR_RTN)>;
-  def _SGPR_IMM_RTN_gfx10 : SMEM_Atomic_Real_gfx10 <op, !cast<SM_Atomic_Pseudo>(ps#_SGPR_IMM_RTN)>;
+  defvar immPs = !cast<SM_Pseudo_Atomic>(ps#_IMM);
+  let InOperandList = (ins immPs.DataClass:$sdata, immPs.BaseClass:$sbase, smem_offset_null:$offset, CPol:$cpol) in {
+    def _IMM_gfx10 : SMEM_Atomic_Real_gfx10 <op, immPs>;
+    def _IMM_RTN_gfx10 : SMEM_Atomic_Real_gfx10 <op, !cast<SM_Pseudo_Atomic>(ps#_IMM_RTN)>;
+  }
+  defvar sgprImmPs = !cast<SM_Pseudo_Atomic>(ps#_SGPR_IMM);
+  let InOperandList = (ins sgprImmPs.DataClass:$sdata, sgprImmPs.BaseClass:$sbase, SReg_32:$soffset, smem_offset_mod_opt:$offset, CPol:$cpol) in {
+    def _SGPR_IMM_gfx10 : SMEM_Atomic_Real_gfx10 <op, sgprImmPs>;
+    def _SGPR_IMM_RTN_gfx10 : SMEM_Atomic_Real_gfx10 <op, !cast<SM_Pseudo_Atomic>(ps#_SGPR_IMM_RTN)>;
+  }
 }
 
 let SubtargetPredicate = HasScalarAtomics in {
 
 defm S_BUFFER_ATOMIC_SWAP         : SM_Real_Atomics_gfx10 <0x40>;
 defm S_BUFFER_ATOMIC_CMPSWAP      : SM_Real_Atomics_gfx10 <0x41>;
 defm S_BUFFER_ATOMIC_ADD          : SM_Real_Atomics_gfx10 <0x42>;
 defm S_BUFFER_ATOMIC_SUB          : SM_Real_Atomics_gfx10 <0x43>;

 defm S_ATOMIC_AND_X2              : SM_Real_Atomics_gfx10 <0xa8>;
 defm S_ATOMIC_OR_X2               : SM_Real_Atomics_gfx10 <0xa9>;
 defm S_ATOMIC_XOR_X2              : SM_Real_Atomics_gfx10 <0xaa>;
 defm S_ATOMIC_INC_X2              : SM_Real_Atomics_gfx10 <0xab>;
 defm S_ATOMIC_DEC_X2              : SM_Real_Atomics_gfx10 <0xac>;
 
 multiclass SM_Real_Discard_gfx10<bits<8> op> {
   defvar ps = NAME;
-  def _IMM_gfx10  : SMEM_Real_gfx10 <op, !cast<SM_Pseudo>(ps#_IMM)>;
-  def _SGPR_gfx10 : SMEM_Real_gfx10 <op, !cast<SM_Pseudo>(ps#_SGPR)>;
-  def _SGPR_IMM_gfx10 : SMEM_Real_gfx10 <op, !cast<SM_Pseudo>(ps#_SGPR_IMM)>;
+  def _IMM_gfx10 : SMEM_Real_gfx10 <op, !cast<SM_Pseudo>(ps#_IMM)> {
+    let InOperandList = (ins SReg_64:$sbase, smem_offset_null:$offset);
+  }
+  def _SGPR_IMM_gfx10 : SMEM_Real_gfx10 <op, !cast<SM_Pseudo>(ps#_SGPR_IMM)> {
+    let InOperandList = (ins SReg_64:$sbase, SReg_32:$soffset, smem_offset_mod_opt:$offset);
+  }
 }
 
 defm S_DCACHE_DISCARD    : SM_Real_Discard_gfx10 <0x28>;
 defm S_DCACHE_DISCARD_X2 : SM_Real_Discard_gfx10 <0x29>;
 
 } // End SubtargetPredicate = HasScalarAtomics
 
 def SMInfoTable : GenericTable {

 }
 
 class SMEM_Real_Load_gfx11<bits<8> op, string ps, string opName> :
     SMEM_Real_gfx11<op, !cast<SM_Pseudo>(ps), opName>;
 
 multiclass SM_Real_Loads_gfx11<bits<8> op, string ps> {
   defvar opName = !tolower(NAME);
   def _IMM_gfx11 : SMEM_Real_Load_gfx11<op, ps#"_IMM", opName>;
-  def _SGPR_gfx11 : SMEM_Real_Load_gfx11<op, ps#"_SGPR", opName>;
   def _SGPR_IMM_gfx11 : SMEM_Real_Load_gfx11<op, ps#"_SGPR_IMM", opName>;
   def : MnemonicAlias<!cast<SM_Pseudo>(ps#"_IMM").Mnemonic, opName>,
                       Requires<[isGFX11Plus]>;
 }
 
 defm S_LOAD_B32  : SM_Real_Loads_gfx11<0x000, "S_LOAD_DWORD">;
 defm S_LOAD_B64  : SM_Real_Loads_gfx11<0x001, "S_LOAD_DWORDX2">;
 defm S_LOAD_B128 : SM_Real_Loads_gfx11<0x002, "S_LOAD_DWORDX4">;
class SMEM_Real_Store_gfx11 <bits<8> op, SM_Pseudo ps> : SMEM_Real_gfx11<op, ps> {
 
   let sdst = ?;
   let Inst{12-6}  = !if(ps.has_sdst, sdata{6-0}, ?);
 }
 
 multiclass SM_Real_Probe_gfx11<bits<8> op> {
   defvar ps = NAME;
   def _IMM_gfx11  : SMEM_Real_Store_gfx11 <op, !cast<SM_Probe_Pseudo>(ps#_IMM)>;
-  def _SGPR_gfx11 : SMEM_Real_Store_gfx11 <op, !cast<SM_Probe_Pseudo>(ps#_SGPR)>;
   def _SGPR_IMM_gfx11
     : SMEM_Real_Store_gfx11 <op, !cast<SM_Probe_Pseudo>(ps#_SGPR_IMM)>;
 }
 
 defm S_ATC_PROBE        : SM_Real_Probe_gfx11 <0x22>;
 defm S_ATC_PROBE_BUFFER : SM_Real_Probe_gfx11 <0x23>;

llvm/test/CodeGen/AMDGPU/GlobalISel/dynamic-alloca-uniform.ll

 ; GFX9-NEXT:    s_add_u32 s4, s32, s4
 ; GFX9-NEXT:    v_mov_b32_e32 v1, s4
 ; GFX9-NEXT:    s_mov_b32 s33, 0
 ; GFX9-NEXT:    buffer_store_dword v0, v1, s[0:3], 0 offen
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: kernel_dynamic_stackalloc_sgpr_align4:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s4, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s4, s[4:5], null
 ; GFX10-NEXT:    s_add_u32 s0, s0, s9
 ; GFX10-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-NEXT:    s_movk_i32 s32, 0x200
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b32 s33, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshl2_add_u32 s4, s4, 15
 ; GFX10-NEXT:    s_and_b32 s4, s4, -16

 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    s_mov_b32 s6, s33
 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, gv@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, gv@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    s_mov_b32 s33, s6
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s4, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s4, s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshl2_add_u32 s4, s4, 15
 ; GFX10-NEXT:    s_and_b32 s4, s4, -16
 ; GFX10-NEXT:    s_lshl_b32 s4, s4, 5
 ; GFX10-NEXT:    s_add_u32 s4, s32, s4
 ; GFX10-NEXT:    s_addk_i32 s32, 0xfe00
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s4
 ; GFX10-NEXT:    buffer_store_dword v0, v1, s[0:3], 0 offen

 ; GFX9-NEXT:    s_add_u32 s4, s32, s4
 ; GFX9-NEXT:    v_mov_b32_e32 v1, s4
 ; GFX9-NEXT:    s_mov_b32 s33, 0
 ; GFX9-NEXT:    buffer_store_dword v0, v1, s[0:3], 0 offen
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: kernel_dynamic_stackalloc_sgpr_align16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s4, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s4, s[4:5], null
 ; GFX10-NEXT:    s_add_u32 s0, s0, s9
 ; GFX10-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-NEXT:    s_movk_i32 s32, 0x200
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b32 s33, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshl2_add_u32 s4, s4, 15
 ; GFX10-NEXT:    s_and_b32 s4, s4, -16

 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    s_mov_b32 s6, s33
 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, gv@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, gv@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    s_mov_b32 s33, s6
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s4, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s4, s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshl2_add_u32 s4, s4, 15
 ; GFX10-NEXT:    s_and_b32 s4, s4, -16
 ; GFX10-NEXT:    s_lshl_b32 s4, s4, 5
 ; GFX10-NEXT:    s_add_u32 s4, s32, s4
 ; GFX10-NEXT:    s_addk_i32 s32, 0xfe00
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s4
 ; GFX10-NEXT:    buffer_store_dword v0, v1, s[0:3], 0 offen

 ; GFX9-NEXT:    s_and_b32 s4, s4, 0xfffff800
 ; GFX9-NEXT:    v_mov_b32_e32 v1, s4
 ; GFX9-NEXT:    s_mov_b32 s33, 0
 ; GFX9-NEXT:    buffer_store_dword v0, v1, s[0:3], 0 offen
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: kernel_dynamic_stackalloc_sgpr_align32:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s4, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s4, s[4:5], null
 ; GFX10-NEXT:    s_add_u32 s0, s0, s9
 ; GFX10-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-NEXT:    s_movk_i32 s32, 0x400
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b32 s33, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshl2_add_u32 s4, s4, 15
 ; GFX10-NEXT:    s_and_b32 s4, s4, -16

 ; GFX10-NEXT:    s_mov_b32 s6, s33
 ; GFX10-NEXT:    s_add_i32 s33, s32, 0x3e0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x800
 ; GFX10-NEXT:    s_and_b32 s33, s33, 0xfffffc00
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, gv@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, gv@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    s_mov_b32 s33, s6
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s4, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s4, s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshl2_add_u32 s4, s4, 15
 ; GFX10-NEXT:    s_and_b32 s4, s4, -16
 ; GFX10-NEXT:    s_lshl_b32 s4, s4, 5
 ; GFX10-NEXT:    s_add_u32 s4, s32, s4
 ; GFX10-NEXT:    s_addk_i32 s32, 0xf800
 ; GFX10-NEXT:    s_and_b32 s4, s4, 0xfffffc00
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s4

llvm/test/CodeGen/AMDGPU/GlobalISel/extractelement.i128.ll

 ; GCN-NEXT:    s_lshl_b32 m0, s4, 1
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_movrels_b64 s[0:1], s[8:9]
 ; GCN-NEXT:    s_movrels_b64 s[2:3], s[10:11]
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i128_sgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx16 s[8:23], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx16 s[8:23], s[2:3], null
 ; GFX10-NEXT:    s_lshl_b32 m0, s4, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_movrels_b64 s[0:1], s[8:9]
 ; GFX10-NEXT:    s_movrels_b64 s[2:3], s[10:11]
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i128_sgpr_idx:
 ; GFX11:       ; %bb.0:

 ; GFX7-NEXT:    v_readfirstlane_b32 s0, v0
 ; GFX7-NEXT:    v_readfirstlane_b32 s1, v1
 ; GFX7-NEXT:    v_readfirstlane_b32 s2, v2
 ; GFX7-NEXT:    v_readfirstlane_b32 s3, v3
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i128_vgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx16 s[4:19], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx16 s[4:19], s[2:3], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
 ; GFX10-NEXT:    v_add_nc_u32_e32 v1, 1, v0
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v0
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s0, 1, v1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s7
 ; GFX10-NEXT:    v_cndmask_b32_e32 v4, s4, v2, vcc_lo

 ; GCN-LABEL: extractelement_sgpr_v4i128_idx0:
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx16 s[0:15], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i128_idx0:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx16 s[0:15], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx16 s[0:15], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i128_idx0:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b512 s[0:15], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog

 ; GCN-NEXT:    s_mov_b32 s0, s4
 ; GCN-NEXT:    s_mov_b32 s1, s5
 ; GCN-NEXT:    s_mov_b32 s2, s6
 ; GCN-NEXT:    s_mov_b32 s3, s7
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i128_idx1:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx16 s[0:15], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx16 s[0:15], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_mov_b32 s0, s4
 ; GFX10-NEXT:    s_mov_b32 s1, s5
 ; GFX10-NEXT:    s_mov_b32 s2, s6
 ; GFX10-NEXT:    s_mov_b32 s3, s7
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i128_idx1:

 ; GCN-NEXT:    s_mov_b32 s0, s8
 ; GCN-NEXT:    s_mov_b32 s1, s9
 ; GCN-NEXT:    s_mov_b32 s2, s10
 ; GCN-NEXT:    s_mov_b32 s3, s11
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i128_idx2:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx16 s[0:15], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx16 s[0:15], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_mov_b32 s0, s8
 ; GFX10-NEXT:    s_mov_b32 s1, s9
 ; GFX10-NEXT:    s_mov_b32 s2, s10
 ; GFX10-NEXT:    s_mov_b32 s3, s11
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i128_idx2:

 ; GCN-NEXT:    s_mov_b32 s0, s12
 ; GCN-NEXT:    s_mov_b32 s1, s13
 ; GCN-NEXT:    s_mov_b32 s2, s14
 ; GCN-NEXT:    s_mov_b32 s3, s15
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i128_idx3:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx16 s[0:15], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx16 s[0:15], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_mov_b32 s0, s12
 ; GFX10-NEXT:    s_mov_b32 s1, s13
 ; GFX10-NEXT:    s_mov_b32 s2, s14
 ; GFX10-NEXT:    s_mov_b32 s3, s15
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i128_idx3:

llvm/test/CodeGen/AMDGPU/GlobalISel/extractelement.i16.ll

 ; GCN-NEXT:    s_cselect_b32 s0, s1, s0
 ; GCN-NEXT:    s_and_b32 s1, s4, 1
 ; GCN-NEXT:    s_lshl_b32 s1, s1, 4
 ; GCN-NEXT:    s_lshr_b32 s0, s0, s1
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i16_sgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s2, s4, 1
 ; GFX10-NEXT:    s_cmp_eq_u32 s2, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s0, s1, s0
 ; GFX10-NEXT:    s_and_b32 s1, s4, 1
 ; GFX10-NEXT:    s_lshl_b32 s1, s1, 4
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, s1
 ; GFX10-NEXT:    ; return to shader part epilog

 ; GCN-NEXT:    v_mov_b32_e32 v3, s1
 ; GCN-NEXT:    v_cndmask_b32_e32 v1, v2, v3, vcc
 ; GCN-NEXT:    v_lshrrev_b32_e32 v0, v0, v1
 ; GCN-NEXT:    v_readfirstlane_b32 s0, v0
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i16_vgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v1, 1, v0
 ; GFX10-NEXT:    v_and_b32_e32 v0, 1, v0
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v1
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 4, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, s0, v2, vcc_lo
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v0, v0, v1

 ; GCN-LABEL: extractelement_sgpr_v4i16_idx0:
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i16_idx0:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i16_idx0:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %vector = load <4 x i16>, ptr addrspace(4) %ptr
   %element = extractelement <4 x i16> %vector, i32 0
   ret i16 %element
 }
 
 define amdgpu_ps i16 @extractelement_sgpr_v4i16_idx1(ptr addrspace(4) inreg %ptr) {
 ; GCN-LABEL: extractelement_sgpr_v4i16_idx1:
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s0, 16
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i16_idx1:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, 16
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i16_idx1:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_mov_b32 s0, s1
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i16_idx2:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_mov_b32 s0, s1
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i16_idx2:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s1, 16
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i16_idx3:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s1, 16
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i16_idx3:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN-NEXT:    s_cselect_b32 s0, s3, s0
 ; GCN-NEXT:    s_and_b32 s1, s4, 1
 ; GCN-NEXT:    s_lshl_b32 s1, s1, 4
 ; GCN-NEXT:    s_lshr_b32 s0, s0, s1
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i16_sgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s5, s4, 1
 ; GFX10-NEXT:    s_cmp_eq_u32 s5, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s0, s1, s0
 ; GFX10-NEXT:    s_cmp_eq_u32 s5, 2
 ; GFX10-NEXT:    s_cselect_b32 s0, s2, s0
 ; GFX10-NEXT:    s_cmp_eq_u32 s5, 3
 ; GFX10-NEXT:    s_cselect_b32 s0, s3, s0

 ; GCN-NEXT:    v_cmp_eq_u32_e32 vcc, 3, v1
 ; GCN-NEXT:    v_cndmask_b32_e32 v1, v2, v5, vcc
 ; GCN-NEXT:    v_lshrrev_b32_e32 v0, v0, v1
 ; GCN-NEXT:    v_readfirstlane_b32 s0, v0
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i16_vgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v1, 1, v0
 ; GFX10-NEXT:    v_and_b32_e32 v0, 1, v0
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v1
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 4, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v2, s0, v2, vcc_lo
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 2, v1

 ; GCN-LABEL: extractelement_sgpr_v8i16_idx0:
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i16_idx0:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i16_idx0:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b128 s[0:3], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %vector = load <8 x i16>, ptr addrspace(4) %ptr
   %element = extractelement <8 x i16> %vector, i32 0
   ret i16 %element
 }
 
 define amdgpu_ps i16 @extractelement_sgpr_v8i16_idx1(ptr addrspace(4) inreg %ptr) {
 ; GCN-LABEL: extractelement_sgpr_v8i16_idx1:
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s0, 16
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i16_idx1:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, 16
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i16_idx1:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b128 s[0:3], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_mov_b32 s0, s1
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i16_idx2:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_mov_b32 s0, s1
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i16_idx2:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b128 s[0:3], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s1, 16
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i16_idx3:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s1, 16
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i16_idx3:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b128 s[0:3], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_mov_b32 s0, s2
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i16_idx4:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_mov_b32 s0, s2
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i16_idx4:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b128 s[0:3], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s2, 16
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i16_idx5:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s2, 16
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i16_idx5:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b128 s[0:3], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_mov_b32 s0, s3
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i16_idx6:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_mov_b32 s0, s3
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i16_idx6:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b128 s[0:3], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s3, 16
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i16_idx7:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s3, 16
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i16_idx7:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b128 s[0:3], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

llvm/test/CodeGen/AMDGPU/GlobalISel/extractelement.i8.ll

 ; GCN-NEXT:    s_and_b32 s1, s4, 3
 ; GCN-NEXT:    s_lshl_b32 s1, s1, 3
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s0, s1
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i8_sgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    s_and_b32 s1, s4, 3
 ; GFX10-NEXT:    s_lshl_b32 s1, s1, 3
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, s1
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i8_sgpr_idx:
 ; GFX11:       ; %bb.0:

 ; GFX7-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_lshr_b32_e32 v0, s0, v0
 ; GFX7-NEXT:    v_readfirstlane_b32 s0, v0
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i8_vgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    v_and_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_lshrrev_b32_e64 v0, v0, s0
 ; GFX10-NEXT:    v_readfirstlane_b32 s0, v0
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i8_vgpr_idx:

 ; GCN-LABEL: extractelement_sgpr_v4i8_idx0:
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dword s0, s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i8_idx0:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i8_idx0:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b32 s0, s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %vector = load <4 x i8>, ptr addrspace(4) %ptr
   %element = extractelement <4 x i8> %vector, i32 0
   ret i8 %element
 }
 
 define amdgpu_ps i8 @extractelement_sgpr_v4i8_idx1(ptr addrspace(4) inreg %ptr) {
 ; GCN-LABEL: extractelement_sgpr_v4i8_idx1:
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dword s0, s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s0, 8
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i8_idx1:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, 8
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i8_idx1:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b32 s0, s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dword s0, s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s0, 16
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i8_idx2:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, 16
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i8_idx2:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b32 s0, s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dword s0, s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s0, 24
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v4i8_idx3:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, 24
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v4i8_idx3:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b32 s0, s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN-NEXT:    s_cselect_b32 s0, s1, s0
 ; GCN-NEXT:    s_and_b32 s1, s4, 3
 ; GCN-NEXT:    s_lshl_b32 s1, s1, 3
 ; GCN-NEXT:    s_lshr_b32 s0, s0, s1
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i8_sgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s2, s4, 2
 ; GFX10-NEXT:    s_cmp_eq_u32 s2, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s0, s1, s0
 ; GFX10-NEXT:    s_and_b32 s1, s4, 3
 ; GFX10-NEXT:    s_lshl_b32 s1, s1, 3
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, s1
 ; GFX10-NEXT:    ; return to shader part epilog

 ; GCN-NEXT:    v_mov_b32_e32 v3, s1
 ; GCN-NEXT:    v_cndmask_b32_e32 v1, v2, v3, vcc
 ; GCN-NEXT:    v_lshrrev_b32_e32 v0, v0, v1
 ; GCN-NEXT:    v_readfirstlane_b32 s0, v0
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i8_vgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v1, 2, v0
 ; GFX10-NEXT:    v_and_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v1
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, s0, v2, vcc_lo
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v0, v0, v1

 ; GCN-LABEL: extractelement_sgpr_v8i8_idx0:
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i8_idx0:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i8_idx0:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %vector = load <8 x i8>, ptr addrspace(4) %ptr
   %element = extractelement <8 x i8> %vector, i32 0
   ret i8 %element
 }
 
 define amdgpu_ps i8 @extractelement_sgpr_v8i8_idx1(ptr addrspace(4) inreg %ptr) {
 ; GCN-LABEL: extractelement_sgpr_v8i8_idx1:
 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s0, 8
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i8_idx1:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, 8
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i8_idx1:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s0, 16
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i8_idx2:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, 16
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i8_idx2:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s0, 24
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i8_idx3:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, 24
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i8_idx3:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_mov_b32 s0, s1
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i8_idx4:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_mov_b32 s0, s1
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i8_idx4:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s1, 8
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i8_idx5:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s1, 8
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i8_idx5:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s1, 16
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i8_idx6:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s1, 16
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i8_idx6:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN:       ; %bb.0:
 ; GCN-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_lshr_b32 s0, s1, 24
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v8i8_idx7:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s0, s1, 24
 ; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: extractelement_sgpr_v8i8_idx7:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[2:3], 0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)

 ; GCN-NEXT:    s_cselect_b32 s0, s3, s0
 ; GCN-NEXT:    s_and_b32 s1, s4, 3
 ; GCN-NEXT:    s_lshl_b32 s1, s1, 3
 ; GCN-NEXT:    s_lshr_b32 s0, s0, s1
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v16i8_sgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s5, s4, 2
 ; GFX10-NEXT:    s_cmp_eq_u32 s5, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s0, s1, s0
 ; GFX10-NEXT:    s_cmp_eq_u32 s5, 2
 ; GFX10-NEXT:    s_cselect_b32 s0, s2, s0
 ; GFX10-NEXT:    s_cmp_eq_u32 s5, 3
 ; GFX10-NEXT:    s_cselect_b32 s0, s3, s0

 ; GCN-NEXT:    v_cmp_eq_u32_e32 vcc, 3, v1
 ; GCN-NEXT:    v_cndmask_b32_e32 v1, v2, v5, vcc
 ; GCN-NEXT:    v_lshrrev_b32_e32 v0, v0, v1
 ; GCN-NEXT:    v_readfirstlane_b32 s0, v0
 ; GCN-NEXT:    ; return to shader part epilog
 ;
 ; GFX10-LABEL: extractelement_sgpr_v16i8_vgpr_idx:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v1, 2, v0
 ; GFX10-NEXT:    v_and_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v1
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v2, s0, v2, vcc_lo
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 2, v1

llvm/test/CodeGen/AMDGPU/GlobalISel/extractelement.ll

 ; GFX10-NEXT:     private_segment_alignment = 4
 ; GFX10-NEXT:     wavefront_size = 5
 ; GFX10-NEXT:     call_convention = -1
 ; GFX10-NEXT:     runtime_loader_kernel_symbol = 0
 ; GFX10-NEXT:    .end_amd_kernel_code_t
 ; GFX10-NEXT:  ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dword s8, s[4:5], 0x8
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    s_mov_b32 s2, 0
 ; GFX10-NEXT:    s_mov_b32 s3, 0x40140000
 ; GFX10-NEXT:    s_mov_b32 s5, 0x40080000
 ; GFX10-NEXT:    s_mov_b32 s4, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cmp_eq_u32 s8, 1
 ; GFX10-NEXT:    s_cselect_b64 s[6:7], 2.0, 1.0

 ; GFX10-NEXT:     private_segment_alignment = 4
 ; GFX10-NEXT:     wavefront_size = 5
 ; GFX10-NEXT:     call_convention = -1
 ; GFX10-NEXT:     runtime_loader_kernel_symbol = 0
 ; GFX10-NEXT:    .end_amd_kernel_code_t
 ; GFX10-NEXT:  ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cmp_eq_u32 s2, 1
 ; GFX10-NEXT:    s_cselect_b32 s3, 2.0, 1.0
 ; GFX10-NEXT:    s_cmp_eq_u32 s2, 2
 ; GFX10-NEXT:    s_cselect_b32 s3, 0x40400000, s3
 ; GFX10-NEXT:    s_cmp_eq_u32 s2, 3
 ; GFX10-NEXT:    s_cselect_b32 s2, 4.0, s3

 ; GFX10-NEXT:     private_segment_alignment = 4
 ; GFX10-NEXT:     wavefront_size = 5
 ; GFX10-NEXT:     call_convention = -1
 ; GFX10-NEXT:     runtime_loader_kernel_symbol = 0
 ; GFX10-NEXT:    .end_amd_kernel_code_t
 ; GFX10-NEXT:  ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dword s6, s[4:5], 0x8
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    s_mov_b32 s2, 0
 ; GFX10-NEXT:    s_mov_b32 s3, 0x40080000
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cmp_eq_u32 s6, 1
 ; GFX10-NEXT:    s_cselect_b64 s[4:5], 2.0, 1.0
 ; GFX10-NEXT:    s_cmp_eq_u32 s6, 2
 ; GFX10-NEXT:    s_cselect_b64 s[2:3], s[2:3], s[4:5]

llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.i16.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v2i16_s_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    s_and_b32 s1, s5, 1
 ; GFX10-NEXT:    s_and_b32 s2, s4, 0xffff
 ; GFX10-NEXT:    s_lshl_b32 s1, s1, 4
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_lshl_b32 s3, 0xffff, s1
 ; GFX10-NEXT:    s_lshl_b32 s1, s2, s1
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX7-NEXT:    v_or_b32_e32 v2, s0, v2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v2i16_v_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    s_and_b32 s1, s4, 1
 ; GFX10-NEXT:    v_and_b32_e32 v2, 0xffff, v0
 ; GFX10-NEXT:    s_lshl_b32 s1, s1, 4
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_lshl_b32 s2, 0xffff, s1
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_andn2_b32 s0, s0, s2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX7-NEXT:    v_or_b32_e32 v2, v3, v2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v2i16_s_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    v_and_b32_e32 v0, 1, v0
 ; GFX10-NEXT:    s_and_b32 s1, s4, 0xffff
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 4, v0
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v1, v0, 0xffff
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v2, v0, s1
 ; GFX10-NEXT:    v_xor_b32_e32 v3, -1, v1
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0

 ; GFX7-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX7-NEXT:    v_or_b32_e32 v2, v3, v2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v2i16_v_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    v_and_b32_e32 v1, 1, v1
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v1, 4, v1
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v2, v1, 0xffff
 ; GFX10-NEXT:    v_lshlrev_b32_sdwa v3, v1, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:WORD_0
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    v_xor_b32_e32 v2, -1, v2
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_cmp_eq_u32_e64 vcc, s2, 1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, 0
 ; GFX7-NEXT:    v_cndmask_b32_e32 v1, v1, v4, vcc
 ; GFX7-NEXT:    flat_store_dwordx2 v[2:3], v[0:1]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v4i16_v_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s2, s4, 1
 ; GFX10-NEXT:    v_and_b32_e32 v2, 0xffff, v0
 ; GFX10-NEXT:    s_cmp_eq_u32 s2, 1
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 vcc_lo, s2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s3, s1, s0
 ; GFX10-NEXT:    s_and_b32 s4, s4, 1
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0

 ; GFX7-NEXT:    v_cndmask_b32_e64 v0, v0, v4, s[0:1]
 ; GFX7-NEXT:    v_mov_b32_e32 v3, 0
 ; GFX7-NEXT:    v_cndmask_b32_e32 v1, v1, v4, vcc
 ; GFX7-NEXT:    flat_store_dwordx2 v[2:3], v[0:1]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v4i16_s_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    v_and_b32_e32 v1, 1, v0
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v4, 1, v0
 ; GFX10-NEXT:    s_and_b32 s2, s4, 0xffff
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v1, 4, v1
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v4
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v2, v1, 0xffff
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v3, v1, s2
 ; GFX10-NEXT:    v_xor_b32_e32 v2, -1, v2

 ; GFX7-NEXT:    v_cndmask_b32_e64 v0, v0, v4, s[0:1]
 ; GFX7-NEXT:    v_mov_b32_e32 v3, 0
 ; GFX7-NEXT:    v_cndmask_b32_e32 v1, v1, v4, vcc
 ; GFX7-NEXT:    flat_store_dwordx2 v[2:3], v[0:1]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v4i16_v_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    v_and_b32_e32 v2, 1, v1
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v4, 1, v1
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 4, v2
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v4
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v3, v2, 0xffff
 ; GFX10-NEXT:    v_lshlrev_b32_sdwa v2, v2, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:WORD_0
 ; GFX10-NEXT:    v_xor_b32_e32 v3, -1, v3
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_mov_b32 s6, -1
 ; GFX7-NEXT:    s_mov_b32 s7, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[4:7], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v8i16_s_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s6, s5, 1
 ; GFX10-NEXT:    v_mov_b32_e32 v4, 0
 ; GFX10-NEXT:    s_cmp_eq_u32 s6, 1
 ; GFX10-NEXT:    v_mov_b32_e32 v5, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s7, s1, s0
 ; GFX10-NEXT:    s_cmp_eq_u32 s6, 2
 ; GFX10-NEXT:    s_cselect_b32 s7, s2, s7

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v8i16_v_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s5, s4, 1
 ; GFX10-NEXT:    v_and_b32_e32 v4, 0xffff, v0
 ; GFX10-NEXT:    s_cmp_eq_u32 s5, 1
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 vcc_lo, s5, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s6, s1, s0
 ; GFX10-NEXT:    s_cmp_eq_u32 s5, 2
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v8i16_s_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[8:11], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[8:11], s[2:3], null
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v6, 1, v0
 ; GFX10-NEXT:    v_and_b32_e32 v1, 1, v0
 ; GFX10-NEXT:    s_and_b32 s1, s4, 0xffff
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v6
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v1, 4, v1
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s0, 2, v6
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s2, 0, v6
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v2, v1, 0xffff

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v8i16_v_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[2:3], null
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v6, 1, v1
 ; GFX10-NEXT:    v_and_b32_e32 v2, 1, v1
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v6
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 4, v2
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s0, 2, v6
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s1, 3, v6
 ; GFX10-NEXT:    s_mov_b32 null, 0
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s2, 0, v6

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s13
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s14
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s15
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v16i16_s_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx8 s[8:15], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx8 s[8:15], s[2:3], null
 ; GFX10-NEXT:    s_and_b32 s0, s5, 1
 ; GFX10-NEXT:    s_lshr_b32 m0, s5, 1
 ; GFX10-NEXT:    s_lshl_b32 s0, s0, 4
 ; GFX10-NEXT:    s_and_b32 s1, s4, 0xffff
 ; GFX10-NEXT:    s_lshl_b32 s2, 0xffff, s0
 ; GFX10-NEXT:    s_lshl_b32 s0, s1, s0
 ; GFX10-NEXT:    v_mov_b32_e32 v8, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v9, 0

 ; GFX7-NEXT:    v_movreld_b32_e32 v0, v8
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[0:3], 0
 ; GFX7-NEXT:    s_mov_b64 s[0:1], 16
 ; GFX7-NEXT:    buffer_store_dwordx4 v[4:7], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v16i16_v_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx8 s[8:15], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx8 s[8:15], s[2:3], null
 ; GFX10-NEXT:    s_and_b32 s0, s4, 1
 ; GFX10-NEXT:    s_lshr_b32 m0, s4, 1
 ; GFX10-NEXT:    s_lshl_b32 s0, s0, 4
 ; GFX10-NEXT:    v_and_b32_e32 v8, 0xffff, v0
 ; GFX10-NEXT:    s_lshl_b32 s1, 0xffff, s0
 ; GFX10-NEXT:    v_mov_b32_e32 v10, 16
 ; GFX10-NEXT:    v_mov_b32_e32 v11, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_cndmask_b32_e64 v7, v7, v9, s[10:11]
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[0:3], 0
 ; GFX7-NEXT:    s_mov_b64 s[0:1], 16
 ; GFX7-NEXT:    buffer_store_dwordx4 v[4:7], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v16i16_s_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx8 s[8:15], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx8 s[8:15], s[2:3], null
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v12, 1, v0
 ; GFX10-NEXT:    v_and_b32_e32 v0, 1, v0
 ; GFX10-NEXT:    s_and_b32 s5, s4, 0xffff
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v12
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s0, 2, v12
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s1, 3, v12
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s2, 4, v12
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s3, 5, v12

 ; GFX7-NEXT:    v_cndmask_b32_e64 v7, v7, v9, s[10:11]
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[0:3], 0
 ; GFX7-NEXT:    s_mov_b64 s[0:1], 16
 ; GFX7-NEXT:    buffer_store_dwordx4 v[4:7], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v16i16_v_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx8 s[8:15], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx8 s[8:15], s[2:3], null
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v12, 1, v1
 ; GFX10-NEXT:    v_and_b32_e32 v1, 1, v1
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v12
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s0, 2, v12
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s1, 3, v12
 ; GFX10-NEXT:    s_mov_b32 null, 0
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s2, 4, v12
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s3, 5, v12

llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.i8.ll

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v4i8_v_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    s_and_b32 s1, s4, 3
 ; GFX10-NEXT:    v_and_b32_e32 v2, 0xff, v0
 ; GFX10-NEXT:    s_lshl_b32 s1, s1, 3
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_lshl_b32 s2, 0xff, s1
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_andn2_b32 s0, s0, s2

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v4i8_s_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    v_and_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    s_and_b32 s1, s4, 0xff
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v1, v0, 0xff
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v2, v0, s1
 ; GFX10-NEXT:    v_xor_b32_e32 v3, -1, v1
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v4i8_v_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
 ; GFX10-NEXT:    v_and_b32_e32 v1, 3, v1
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v1, 3, v1
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v2, v1, 0xff
 ; GFX10-NEXT:    v_lshlrev_b32_sdwa v3, v1, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:BYTE_0
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    v_xor_b32_e32 v2, -1, v2
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v8i8_s_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s2, s5, 2
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_cmp_eq_u32 s2, 1
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s3, s1, s0
 ; GFX10-NEXT:    s_and_b32 s5, s5, 3
 ; GFX10-NEXT:    s_and_b32 s4, s4, 0xff

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v8i8_v_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s2, s4, 2
 ; GFX10-NEXT:    v_and_b32_e32 v2, 0xff, v0
 ; GFX10-NEXT:    s_cmp_eq_u32 s2, 1
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 vcc_lo, s2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s3, s1, s0
 ; GFX10-NEXT:    s_and_b32 s4, s4, 3
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v8i8_s_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    v_and_b32_e32 v1, 3, v0
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v4, 2, v0
 ; GFX10-NEXT:    s_and_b32 s2, s4, 0xff
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v1, 3, v1
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v4
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v2, v1, 0xff
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v3, v1, s2
 ; GFX10-NEXT:    v_xor_b32_e32 v2, -1, v2

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v8i8_v_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
 ; GFX10-NEXT:    v_and_b32_e32 v2, 3, v1
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v4, 2, v1
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 3, v2
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v4
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v3, v2, 0xff
 ; GFX10-NEXT:    v_lshlrev_b32_sdwa v2, v2, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:BYTE_0
 ; GFX10-NEXT:    v_xor_b32_e32 v3, -1, v3
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_mov_b32 s6, -1
 ; GFX7-NEXT:    s_mov_b32 s7, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[4:7], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v16i8_s_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s6, s5, 2
 ; GFX10-NEXT:    v_mov_b32_e32 v4, 0
 ; GFX10-NEXT:    s_cmp_eq_u32 s6, 1
 ; GFX10-NEXT:    v_mov_b32_e32 v5, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s7, s1, s0
 ; GFX10-NEXT:    s_cmp_eq_u32 s6, 2
 ; GFX10-NEXT:    s_cselect_b32 s7, s2, s7

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v16i8_v_s:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[2:3], null
 ; GFX10-NEXT:    s_lshr_b32 s5, s4, 2
 ; GFX10-NEXT:    v_and_b32_e32 v4, 0xff, v0
 ; GFX10-NEXT:    s_cmp_eq_u32 s5, 1
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 vcc_lo, s5, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cselect_b32 s6, s1, s0
 ; GFX10-NEXT:    s_cmp_eq_u32 s5, 2
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v16i8_s_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[8:11], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[8:11], s[2:3], null
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v6, 2, v0
 ; GFX10-NEXT:    v_and_b32_e32 v1, 3, v0
 ; GFX10-NEXT:    s_and_b32 s1, s4, 0xff
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v6
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v1, 3, v1
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s0, 2, v6
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s2, 0, v6
 ; GFX10-NEXT:    v_lshlrev_b32_e64 v2, v1, 0xff

 ; GFX7-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX7-NEXT:    s_mov_b32 s2, -1
 ; GFX7-NEXT:    s_mov_b32 s3, 0xf000
 ; GFX7-NEXT:    buffer_store_dwordx4 v[0:3], off, s[0:3], 0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: insertelement_s_v16i8_v_v:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[2:3], null
 ; GFX10-NEXT:    v_lshrrev_b32_e32 v6, 2, v1
 ; GFX10-NEXT:    v_and_b32_e32 v2, 3, v1
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 1, v6
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 3, v2
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s0, 2, v6
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s1, 3, v6
 ; GFX10-NEXT:    s_mov_b32 null, 0
 ; GFX10-NEXT:    v_cmp_eq_u32_e64 s2, 0, v6

llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.large.ll

 ; GCN-NEXT:    s_waitcnt vmcnt(15)
 ; GCN-NEXT:    global_store_dwordx4 v64, v[56:59], s[2:3] offset:224
 ; GCN-NEXT:    s_waitcnt vmcnt(15)
 ; GCN-NEXT:    global_store_dwordx4 v64, v[60:63], s[2:3] offset:240
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: v_insert_v64i32_37:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v64, 8, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_clause 0xf
 ; GFX10-NEXT:    global_load_dwordx4 v[0:3], v64, s[0:1]
 ; GFX10-NEXT:    global_load_dwordx4 v[8:11], v64, s[0:1] offset:16
 ; GFX10-NEXT:    global_load_dwordx4 v[12:15], v64, s[0:1] offset:32
 ; GFX10-NEXT:    global_load_dwordx4 v[16:19], v64, s[0:1] offset:48
 ; GFX10-NEXT:    global_load_dwordx4 v[20:23], v64, s[0:1] offset:64

llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.atomic.inc.ll

 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: lds_atomic_inc_ret_i32:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x8
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 42
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    ds_inc_rtn_u32 v0, v0, v1
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: lds_atomic_inc_ret_i32:
 ; GFX11:       ; %bb.0:

 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: lds_atomic_inc_ret_i32_offset:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x8
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s0
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    ds_inc_rtn_u32 v0, v1, v0 offset:16
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: lds_atomic_inc_ret_i32_offset:
 ; GFX11:       ; %bb.0:

 ; GFX9-NEXT:    v_mov_b32_e32 v1, 42
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX9-NEXT:    ds_inc_u32 v0, v1
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: lds_atomic_inc_noret_i32:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 42
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-NEXT:    ds_inc_u32 v0, v1
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: lds_atomic_inc_noret_i32:
 ; GFX11:       ; %bb.0:

 ; GFX9-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX9-NEXT:    ds_inc_u32 v1, v0 offset:16
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: lds_atomic_inc_noret_i32_offset:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-NEXT:    ds_inc_u32 v1, v0 offset:16
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: lds_atomic_inc_noret_i32_offset:
 ; GFX11:       ; %bb.0:

 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc v0, v1, v0, s[2:3] glc
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_ret_i32:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc v0, v1, v0, s[2:3] glc
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;

 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc v0, v1, v0, s[2:3] offset:16 glc
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_ret_i32_offset:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc v0, v1, v0, s[2:3] offset:16 glc
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;

 ; GFX9-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc v1, v0, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_noret_i32:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: global_atomic_inc_noret_i32:
 ; GFX11:       ; %bb.0:

 ; GFX9-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc v1, v0, s[0:1] offset:16
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_noret_i32_offset:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc v1, v0, s[0:1] offset:16
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: global_atomic_inc_noret_i32_offset:
 ; GFX11:       ; %bb.0:

 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc v1, v0, v1, s[2:3] offset:20 glc
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_ret_i32_offset_addr64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 42
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc v1, v0, v1, s[2:3] offset:20 glc
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;

 ; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX9-NEXT:    v_mov_b32_e32 v1, 42
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc v0, v1, s[0:1] offset:20
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_noret_i32_offset_addr64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 42
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc v0, v1, s[0:1] offset:20
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: global_atomic_inc_noret_i32_offset_addr64:
 ; GFX11:       ; %bb.0:

 ; GFX9-NEXT:    global_store_dword v2, v0, s[2:3]
 ; GFX9-NEXT:    global_store_dword v2, v1, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: atomic_inc_shl_base_lds_0_i32:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v1, 2, v0
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 9
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, 2, v0
 ; GFX10-NEXT:    ds_inc_rtn_u32 v1, v1, v2 offset:8
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_store_dword v2, v0, s[2:3]
 ; GFX10-NEXT:    global_store_dword v2, v1, s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;

 ;
 ; GFX10-LABEL: lds_atomic_inc_ret_i64:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x8
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s0
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    ds_inc_rtn_u64 v[0:1], v2, v[0:1]
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_store_dwordx2 v2, v[0:1], s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: lds_atomic_inc_ret_i64:
 ; GFX11:       ; %bb.0:

 ;
 ; GFX10-LABEL: lds_atomic_inc_ret_i64_offset:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x8
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s0
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    ds_inc_rtn_u64 v[0:1], v2, v[0:1] offset:32
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_store_dwordx2 v2, v[0:1], s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: lds_atomic_inc_ret_i64_offset:
 ; GFX11:       ; %bb.0:

 ; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX9-NEXT:    ds_inc_u64 v2, v[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: lds_atomic_inc_noret_i64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX10-NEXT:    ds_inc_u64 v2, v[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: lds_atomic_inc_noret_i64:

 ; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX9-NEXT:    ds_inc_u64 v2, v[0:1] offset:32
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: lds_atomic_inc_noret_i64_offset:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX10-NEXT:    ds_inc_u64 v2, v[0:1] offset:32
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: lds_atomic_inc_noret_i64_offset:

 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc_x2 v[0:1], v2, v[0:1], s[2:3] glc
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    global_store_dwordx2 v2, v[0:1], s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_ret_i64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc_x2 v[0:1], v2, v[0:1], s[2:3] glc
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    global_store_dwordx2 v2, v[0:1], s[0:1]
 ; GFX10-NEXT:    s_endpgm

 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc_x2 v[0:1], v2, v[0:1], s[2:3] offset:32 glc
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    global_store_dwordx2 v2, v[0:1], s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_ret_i64_offset:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc_x2 v[0:1], v2, v[0:1], s[2:3] offset:32 glc
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    global_store_dwordx2 v2, v[0:1], s[0:1]
 ; GFX10-NEXT:    s_endpgm

 ; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc_x2 v2, v[0:1], s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_noret_i64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc_x2 v2, v[0:1], s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: global_atomic_inc_noret_i64:

 ; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc_x2 v2, v[0:1], s[0:1] offset:32
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_noret_i64_offset:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc_x2 v2, v[0:1], s[0:1] offset:32
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: global_atomic_inc_noret_i64_offset:

 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc_x2 v[0:1], v3, v[1:2], s[2:3] offset:40 glc
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    global_store_dwordx2 v3, v[0:1], s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_ret_i64_offset_addr64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v3, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc_x2 v[0:1], v3, v[1:2], s[2:3] offset:40 glc
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    global_store_dwordx2 v3, v[0:1], s[0:1]
 ; GFX10-NEXT:    s_endpgm

 ; GFX9-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX9-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    global_atomic_inc_x2 v0, v[1:2], s[0:1] offset:40
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_inc_noret_i64_offset_addr64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_atomic_inc_x2 v0, v[1:2], s[0:1] offset:40
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: global_atomic_inc_noret_i64_offset_addr64:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x0
 ; GFX11-NEXT:    v_dual_mov_b32 v1, 42 :: v_dual_lshlrev_b32 v0, 3, v0
 ; GFX11-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    global_atomic_inc_u64 v0, v[1:2], s[0:1] offset:40
 ; GFX11-NEXT:    s_sendmsg sendmsg(MSG_DEALLOC_VGPRS)
 ; GFX11-NEXT:    s_endpgm
   %id = call i32 @llvm.amdgcn.workitem.id.x()
   %gep.tid = getelementptr i64, ptr addrspace(1) %ptr, i32 %id
   %gep = getelementptr i64, ptr addrspace(1) %gep.tid, i32 5
   %result = call i64 @llvm.amdgcn.atomic.inc.i64.p1(ptr addrspace(1) %gep, i64 42, i32 0, i32 0, i1 false)
   ret void
 }
 
 define amdgpu_kernel void @flat_atomic_inc_ret_i32(ptr %out, ptr %ptr) #0 {
-; GCN-LABEL: flat_atomic_inc_ret_i32:
-; GCN:       ; %bb.0:
-; GCN-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
-; GCN-NEXT:    v_mov_b32_e32 v2, 42
-; GCN-NEXT:    s_waitcnt lgkmcnt(0)
-; GCN-NEXT:    v_mov_b32_e32 v0, s2
-; GCN-NEXT:    v_mov_b32_e32 v1, s3
-; GCN-NEXT:    flat_atomic_inc v2, v[0:1], v2 glc
-; GCN-NEXT:    v_mov_b32_e32 v0, s0
-; GCN-NEXT:    v_mov_b32_e32 v1, s1
-; GCN-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
-; GCN-NEXT:    flat_store_dword v[0:1], v2
-; GCN-NEXT:    s_endpgm
+; CI-LABEL: flat_atomic_inc_ret_i32:
+; CI:       ; %bb.0:
+; CI-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; CI-NEXT:    v_mov_b32_e32 v2, 42
+; CI-NEXT:    s_waitcnt lgkmcnt(0)
+; CI-NEXT:    v_mov_b32_e32 v0, s2
+; CI-NEXT:    v_mov_b32_e32 v1, s3
+; CI-NEXT:    flat_atomic_inc v2, v[0:1], v2 glc
+; CI-NEXT:    v_mov_b32_e32 v0, s0
+; CI-NEXT:    v_mov_b32_e32 v1, s1
+; CI-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
+; CI-NEXT:    flat_store_dword v[0:1], v2
+; CI-NEXT:    s_endpgm
+;
+; VI-LABEL: flat_atomic_inc_ret_i32:
+; VI:       ; %bb.0:
+; VI-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; VI-NEXT:    v_mov_b32_e32 v2, 42
+; VI-NEXT:    s_waitcnt lgkmcnt(0)
+; VI-NEXT:    v_mov_b32_e32 v0, s2
+; VI-NEXT:    v_mov_b32_e32 v1, s3
+; VI-NEXT:    flat_atomic_inc v2, v[0:1], v2 glc
+; VI-NEXT:    v_mov_b32_e32 v0, s0
+; VI-NEXT:    v_mov_b32_e32 v1, s1
+; VI-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
+; VI-NEXT:    flat_store_dword v[0:1], v2
+; VI-NEXT:    s_endpgm
+;
+; GFX9-LABEL: flat_atomic_inc_ret_i32:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX9-NEXT:    v_mov_b32_e32 v2, 42
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    v_mov_b32_e32 v0, s2
+; GFX9-NEXT:    v_mov_b32_e32 v1, s3
+; GFX9-NEXT:    flat_atomic_inc v2, v[0:1], v2 glc
+; GFX9-NEXT:    v_mov_b32_e32 v0, s0
+; GFX9-NEXT:    v_mov_b32_e32 v1, s1
+; GFX9-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
+; GFX9-NEXT:    flat_store_dword v[0:1], v2
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: flat_atomic_inc_ret_i32:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
+; GFX10-NEXT:    v_mov_b32_e32 v2, 42
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    v_mov_b32_e32 v0, s2
+; GFX10-NEXT:    v_mov_b32_e32 v1, s3
+; GFX10-NEXT:    flat_atomic_inc v2, v[0:1], v2 glc
+; GFX10-NEXT:    v_mov_b32_e32 v0, s0
+; GFX10-NEXT:    v_mov_b32_e32 v1, s1
+; GFX10-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
+; GFX10-NEXT:    flat_store_dword v[0:1], v2
+; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: flat_atomic_inc_ret_i32:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b128 s[0:3], s[0:1], 0x0
 ; GFX11-NEXT:    v_mov_b32_e32 v2, 42
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    v_dual_mov_b32 v0, s2 :: v_dual_mov_b32 v1, s3
 ; GFX11-NEXT:    flat_atomic_inc_u32 v2, v[0:1], v2 glc

 ; GFX9-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX9-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX9-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX9-NEXT:    flat_store_dword v[0:1], v2
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: flat_atomic_inc_ret_i32_offset:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 42
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_add_u32 s2, s2, 16
 ; GFX10-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-NEXT:    flat_atomic_inc v2, v[0:1], v2 glc
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0

 ; GFX11-NEXT:    s_endpgm
   %gep = getelementptr i32, ptr %ptr, i32 4
   %result = call i32 @llvm.amdgcn.atomic.inc.i32.p0(ptr %gep, i32 42, i32 0, i32 0, i1 false)
   store i32 %result, ptr %out
   ret void
 }
 
 define amdgpu_kernel void @flat_atomic_inc_noret_i32(ptr %ptr) nounwind {
-; GCN-LABEL: flat_atomic_inc_noret_i32:
-; GCN:       ; %bb.0:
-; GCN-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
-; GCN-NEXT:    v_mov_b32_e32 v2, 42
-; GCN-NEXT:    s_waitcnt lgkmcnt(0)
-; GCN-NEXT:    v_mov_b32_e32 v0, s0
-; GCN-NEXT:    v_mov_b32_e32 v1, s1
-; GCN-NEXT:    flat_atomic_inc v[0:1], v2
-; GCN-NEXT:    s_endpgm
+; CI-LABEL: flat_atomic_inc_noret_i32:
+; CI:       ; %bb.0:
+; CI-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; CI-NEXT:    v_mov_b32_e32 v2, 42
+; CI-NEXT:    s_waitcnt lgkmcnt(0)
+; CI-NEXT:    v_mov_b32_e32 v0, s0
+; CI-NEXT:    v_mov_b32_e32 v1, s1
+; CI-NEXT:    flat_atomic_inc v[0:1], v2
+; CI-NEXT:    s_endpgm
+;
+; VI-LABEL: flat_atomic_inc_noret_i32:
+; VI:       ; %bb.0:
+; VI-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; VI-NEXT:    v_mov_b32_e32 v2, 42
+; VI-NEXT:    s_waitcnt lgkmcnt(0)
+; VI-NEXT:    v_mov_b32_e32 v0, s0
+; VI-NEXT:    v_mov_b32_e32 v1, s1
+; VI-NEXT:    flat_atomic_inc v[0:1], v2
+; VI-NEXT:    s_endpgm
+;
+; GFX9-LABEL: flat_atomic_inc_noret_i32:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX9-NEXT:    v_mov_b32_e32 v2, 42
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    v_mov_b32_e32 v0, s0
+; GFX9-NEXT:    v_mov_b32_e32 v1, s1
+; GFX9-NEXT:    flat_atomic_inc v[0:1], v2
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: flat_atomic_inc_noret_i32:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
+; GFX10-NEXT:    v_mov_b32_e32 v2, 42
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    v_mov_b32_e32 v0, s0
+; GFX10-NEXT:    v_mov_b32_e32 v1, s1
+; GFX10-NEXT:    flat_atomic_inc v[0:1], v2
+; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: flat_atomic_inc_noret_i32:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x0
 ; GFX11-NEXT:    v_mov_b32_e32 v2, 42
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    v_dual_mov_b32 v0, s0 :: v_dual_mov_b32 v1, s1
 ; GFX11-NEXT:    flat_atomic_inc_u32 v[0:1], v2

 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX9-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX9-NEXT:    flat_atomic_inc v[0:1], v2 offset:16
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: flat_atomic_inc_noret_i32_offset:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 42
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-NEXT:    flat_atomic_inc v[0:1], v2
 ; GFX10-NEXT:    s_endpgm

 ; GFX9-NEXT:    v_add_co_u32_e32 v0, vcc, v0, v2
 ; GFX9-NEXT:    v_addc_co_u32_e32 v1, vcc, 0, v1, vcc
 ; GFX9-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX9-NEXT:    flat_store_dword v[0:1], v3
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: flat_atomic_inc_ret_i32_offset_addr64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 2, v0
 ; GFX10-NEXT:    v_mov_b32_e32 v3, 42
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-NEXT:    v_add_co_u32 v0, vcc_lo, v0, v2
 ; GFX10-NEXT:    v_add_co_ci_u32_e32 v1, vcc_lo, 0, v1, vcc_lo
 ; GFX10-NEXT:    v_add_co_u32 v0, vcc_lo, v0, 20

 ; GFX9-NEXT:    v_add_co_u32_e32 v0, vcc, v0, v2
 ; GFX9-NEXT:    v_addc_co_u32_e32 v1, vcc, 0, v1, vcc
 ; GFX9-NEXT:    v_mov_b32_e32 v2, 42
 ; GFX9-NEXT:    flat_atomic_inc v[0:1], v2 offset:20
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: flat_atomic_inc_noret_i32_offset_addr64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 2, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-NEXT:    v_add_co_u32 v0, vcc_lo, v0, v2
 ; GFX10-NEXT:    v_add_co_ci_u32_e32 v1, vcc_lo, 0, v1, vcc_lo
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 42
 ; GFX10-NEXT:    v_add_co_u32 v0, vcc_lo, v0, 20

 ; GFX9-NEXT:    global_store_dwordx2 v3, v[1:2], s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: atomic_inc_shl_base_lds_0_i64:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 9
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v3, 3, v0
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, 2, v0
 ; GFX10-NEXT:    ds_inc_rtn_u64 v[1:2], v3, v[1:2] offset:16
 ; GFX10-NEXT:    v_mov_b32_e32 v3, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_store_dword v3, v0, s[2:3]
 ; GFX10-NEXT:    global_store_dwordx2 v3, v[1:2], s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;

 ; GFX9-NEXT:    v_mov_b32_e32 v3, s1
 ; GFX9-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX9-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX9-NEXT:    flat_store_dwordx2 v[2:3], v[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: flat_atomic_inc_ret_i64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-NEXT:    flat_atomic_inc_x2 v[0:1], v[2:3], v[0:1] glc
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s1
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s0

 ; GFX9-NEXT:    v_mov_b32_e32 v3, s1
 ; GFX9-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX9-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX9-NEXT:    flat_store_dwordx2 v[2:3], v[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: flat_atomic_inc_ret_i64_offset:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_add_u32 s2, s2, 32
 ; GFX10-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-NEXT:    flat_atomic_inc_x2 v[0:1], v[2:3], v[0:1] glc

 ; GFX11-NEXT:    s_endpgm
   %gep = getelementptr i64, ptr %ptr, i32 4
   %result = call i64 @llvm.amdgcn.atomic.inc.i64.p0(ptr %gep, i64 42, i32 0, i32 0, i1 false)
   store i64 %result, ptr %out
   ret void
 }
 
 define amdgpu_kernel void @flat_atomic_inc_noret_i64(ptr %ptr) nounwind {
-; GCN-LABEL: flat_atomic_inc_noret_i64:
-; GCN:       ; %bb.0:
-; GCN-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
-; GCN-NEXT:    v_mov_b32_e32 v0, 42
-; GCN-NEXT:    v_mov_b32_e32 v1, 0
-; GCN-NEXT:    s_waitcnt lgkmcnt(0)
-; GCN-NEXT:    v_mov_b32_e32 v3, s1
-; GCN-NEXT:    v_mov_b32_e32 v2, s0
-; GCN-NEXT:    flat_atomic_inc_x2 v[2:3], v[0:1]
-; GCN-NEXT:    s_endpgm
+; CI-LABEL: flat_atomic_inc_noret_i64:
+; CI:       ; %bb.0:
+; CI-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; CI-NEXT:    v_mov_b32_e32 v0, 42
+; CI-NEXT:    v_mov_b32_e32 v1, 0
+; CI-NEXT:    s_waitcnt lgkmcnt(0)
+; CI-NEXT:    v_mov_b32_e32 v3, s1
+; CI-NEXT:    v_mov_b32_e32 v2, s0
+; CI-NEXT:    flat_atomic_inc_x2 v[2:3], v[0:1]
+; CI-NEXT:    s_endpgm
+;
+; VI-LABEL: flat_atomic_inc_noret_i64:
+; VI:       ; %bb.0:
+; VI-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; VI-NEXT:    v_mov_b32_e32 v0, 42
+; VI-NEXT:    v_mov_b32_e32 v1, 0
+; VI-NEXT:    s_waitcnt lgkmcnt(0)
+; VI-NEXT:    v_mov_b32_e32 v3, s1
+; VI-NEXT:    v_mov_b32_e32 v2, s0
+; VI-NEXT:    flat_atomic_inc_x2 v[2:3], v[0:1]
+; VI-NEXT:    s_endpgm
+;
+; GFX9-LABEL: flat_atomic_inc_noret_i64:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX9-NEXT:    v_mov_b32_e32 v0, 42
+; GFX9-NEXT:    v_mov_b32_e32 v1, 0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    v_mov_b32_e32 v3, s1
+; GFX9-NEXT:    v_mov_b32_e32 v2, s0
+; GFX9-NEXT:    flat_atomic_inc_x2 v[2:3], v[0:1]
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: flat_atomic_inc_noret_i64:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
+; GFX10-NEXT:    v_mov_b32_e32 v0, 42
+; GFX10-NEXT:    v_mov_b32_e32 v1, 0
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    v_mov_b32_e32 v3, s1
+; GFX10-NEXT:    v_mov_b32_e32 v2, s0
+; GFX10-NEXT:    flat_atomic_inc_x2 v[2:3], v[0:1]
+; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: flat_atomic_inc_noret_i64:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b64 s[0:1], s[0:1], 0x0
 ; GFX11-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX11-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    v_dual_mov_b32 v3, s1 :: v_dual_mov_b32 v2, s0

 ; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX9-NEXT:    v_mov_b32_e32 v3, s1
 ; GFX9-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX9-NEXT:    flat_atomic_inc_x2 v[2:3], v[0:1] offset:32
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: flat_atomic_inc_noret_i64_offset:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_add_u32 s0, s0, 32
 ; GFX10-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s1
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX10-NEXT:    flat_atomic_inc_x2 v[2:3], v[0:1]

 ; GFX9-NEXT:    v_add_co_u32_e32 v2, vcc, v2, v5
 ; GFX9-NEXT:    v_addc_co_u32_e32 v3, vcc, 0, v3, vcc
 ; GFX9-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX9-NEXT:    flat_store_dwordx2 v[2:3], v[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: flat_atomic_inc_ret_i64_offset_addr64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v4, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-NEXT:    v_add_co_u32 v2, vcc_lo, v0, v4
 ; GFX10-NEXT:    v_add_co_ci_u32_e32 v3, vcc_lo, 0, v1, vcc_lo
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_add_co_u32 v2, vcc_lo, v2, 40

 ; GFX9-NEXT:    v_mov_b32_e32 v3, s0
 ; GFX9-NEXT:    v_add_co_u32_e32 v3, vcc, v3, v0
 ; GFX9-NEXT:    v_addc_co_u32_e32 v4, vcc, 0, v4, vcc
 ; GFX9-NEXT:    flat_atomic_inc_x2 v[3:4], v[1:2] offset:40
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: flat_atomic_inc_noret_i64_offset_addr64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-NEXT:    v_add_co_u32 v2, vcc_lo, v0, v2
 ; GFX10-NEXT:    v_add_co_ci_u32_e32 v3, vcc_lo, 0, v1, vcc_lo
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    v_add_co_u32 v2, vcc_lo, v2, 40

 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: nocse_lds_atomic_inc_ret_i32:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x10
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 42
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s0
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    ds_inc_rtn_u32 v2, v1, v0
 ; GFX10-NEXT:    ds_inc_rtn_u32 v0, v1, v0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_store_dword v1, v2, s[0:1]
 ; GFX10-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10-NEXT:    s_endpgm
 ;
; GFX11-NEXT:    s_endpgm
   store i32 %result0, ptr addrspace(1) %out0
   store i32 %result1, ptr addrspace(1) %out1
   ret void
 }
 
 attributes #0 = { nounwind }
 attributes #1 = { nounwind readnone }
 attributes #2 = { nounwind argmemonly }
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; GCN: {{.*}}

llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.div.fmas.ll

 ;
 ; GFX10_W32-LABEL: test_div_fmas_f32:
 ; GFX10_W32:       ; %bb.0:
 ; GFX10_W32-NEXT:    s_clause 0x4
 ; GFX10_W32-NEXT:    s_load_dword s4, s[0:1], 0x94
 ; GFX10_W32-NEXT:    s_load_dword s5, s[0:1], 0x4c
 ; GFX10_W32-NEXT:    s_load_dword s6, s[0:1], 0x70
 ; GFX10_W32-NEXT:    s_load_dword s7, s[0:1], 0x28
-; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    s_and_b32 s0, 1, s4
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v0, s5
 ; GFX10_W32-NEXT:    v_cmp_ne_u32_e64 vcc_lo, 0, s0
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, s6
 ; GFX10_W32-NEXT:    v_div_fmas_f32 v0, s7, v0, v1
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W32-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W32-NEXT:    s_endpgm
 ;
 ; GFX10_W64-LABEL: test_div_fmas_f32:
 ; GFX10_W64:       ; %bb.0:
 ; GFX10_W64-NEXT:    s_clause 0x4
 ; GFX10_W64-NEXT:    s_load_dword s4, s[0:1], 0x94
 ; GFX10_W64-NEXT:    s_load_dword s5, s[0:1], 0x4c
 ; GFX10_W64-NEXT:    s_load_dword s6, s[0:1], 0x70
 ; GFX10_W64-NEXT:    s_load_dword s7, s[0:1], 0x28
-; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    s_and_b32 s0, 1, s4
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v0, s5
 ; GFX10_W64-NEXT:    v_cmp_ne_u32_e64 vcc, 0, s0
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, s6
 ; GFX10_W64-NEXT:    v_div_fmas_f32 v0, s7, v0, v1
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W64-NEXT:    global_store_dword v1, v0, s[2:3]

 ; GFX8-NEXT:    s_endpgm
 ;
 ; GFX10_W32-LABEL: test_div_fmas_f32_inline_imm_0:
 ; GFX10_W32:       ; %bb.0:
 ; GFX10_W32-NEXT:    s_clause 0x3
 ; GFX10_W32-NEXT:    s_load_dword s4, s[0:1], 0x94
 ; GFX10_W32-NEXT:    s_load_dword s5, s[0:1], 0x70
 ; GFX10_W32-NEXT:    s_load_dword s6, s[0:1], 0x4c
-; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    s_and_b32 s0, 1, s4
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v0, s5
 ; GFX10_W32-NEXT:    v_cmp_ne_u32_e64 vcc_lo, 0, s0
 ; GFX10_W32-NEXT:    v_div_fmas_f32 v0, 1.0, s6, v0
 ; GFX10_W32-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W32-NEXT:    s_endpgm
 ;
 ; GFX10_W64-LABEL: test_div_fmas_f32_inline_imm_0:
 ; GFX10_W64:       ; %bb.0:
 ; GFX10_W64-NEXT:    s_clause 0x3
 ; GFX10_W64-NEXT:    s_load_dword s4, s[0:1], 0x94
 ; GFX10_W64-NEXT:    s_load_dword s5, s[0:1], 0x70
 ; GFX10_W64-NEXT:    s_load_dword s6, s[0:1], 0x4c
-; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    s_and_b32 s0, 1, s4
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v0, s5
 ; GFX10_W64-NEXT:    v_cmp_ne_u32_e64 vcc, 0, s0
 ; GFX10_W64-NEXT:    v_div_fmas_f32 v0, 1.0, s6, v0
 ; GFX10_W64-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W64-NEXT:    s_endpgm

 ; GFX8-NEXT:    s_endpgm
 ;
 ; GFX10_W32-LABEL: test_div_fmas_f32_inline_imm_1:
 ; GFX10_W32:       ; %bb.0:
 ; GFX10_W32-NEXT:    s_clause 0x3
 ; GFX10_W32-NEXT:    s_load_dword s4, s[0:1], 0x34
 ; GFX10_W32-NEXT:    s_load_dword s5, s[0:1], 0x10
 ; GFX10_W32-NEXT:    s_load_dword s6, s[0:1], 0x8
-; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    s_and_b32 s0, 1, s4
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v0, s5
 ; GFX10_W32-NEXT:    v_cmp_ne_u32_e64 vcc_lo, 0, s0
 ; GFX10_W32-NEXT:    v_div_fmas_f32 v0, s6, 1.0, v0
 ; GFX10_W32-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W32-NEXT:    s_endpgm
 ;
 ; GFX10_W64-LABEL: test_div_fmas_f32_inline_imm_1:
 ; GFX10_W64:       ; %bb.0:
 ; GFX10_W64-NEXT:    s_clause 0x3
 ; GFX10_W64-NEXT:    s_load_dword s4, s[0:1], 0x34
 ; GFX10_W64-NEXT:    s_load_dword s5, s[0:1], 0x10
 ; GFX10_W64-NEXT:    s_load_dword s6, s[0:1], 0x8
-; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    s_and_b32 s0, 1, s4
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v0, s5
 ; GFX10_W64-NEXT:    v_cmp_ne_u32_e64 vcc, 0, s0
 ; GFX10_W64-NEXT:    v_div_fmas_f32 v0, s6, 1.0, v0
 ; GFX10_W64-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W64-NEXT:    s_endpgm

 ; GFX8-NEXT:    s_endpgm
 ;
 ; GFX10_W32-LABEL: test_div_fmas_f32_inline_imm_2:
 ; GFX10_W32:       ; %bb.0:
 ; GFX10_W32-NEXT:    s_clause 0x3
 ; GFX10_W32-NEXT:    s_load_dword s4, s[0:1], 0x94
 ; GFX10_W32-NEXT:    s_load_dword s5, s[0:1], 0x4c
 ; GFX10_W32-NEXT:    s_load_dword s6, s[0:1], 0x28
-; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    s_and_b32 s0, 1, s4
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v0, s5
 ; GFX10_W32-NEXT:    v_cmp_ne_u32_e64 vcc_lo, 0, s0
 ; GFX10_W32-NEXT:    v_div_fmas_f32 v0, s6, v0, 1.0
 ; GFX10_W32-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W32-NEXT:    s_endpgm
 ;
 ; GFX10_W64-LABEL: test_div_fmas_f32_inline_imm_2:
 ; GFX10_W64:       ; %bb.0:
 ; GFX10_W64-NEXT:    s_clause 0x3
 ; GFX10_W64-NEXT:    s_load_dword s4, s[0:1], 0x94
 ; GFX10_W64-NEXT:    s_load_dword s5, s[0:1], 0x4c
 ; GFX10_W64-NEXT:    s_load_dword s6, s[0:1], 0x28
-; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    s_and_b32 s0, 1, s4
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v0, s5
 ; GFX10_W64-NEXT:    v_cmp_ne_u32_e64 vcc, 0, s0
 ; GFX10_W64-NEXT:    v_div_fmas_f32 v0, s6, v0, 1.0
 ; GFX10_W64-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W64-NEXT:    s_endpgm

 ; GFX8-NEXT:    v_mov_b32_e32 v3, s5
 ; GFX8-NEXT:    flat_store_dwordx2 v[2:3], v[0:1]
 ; GFX8-NEXT:    s_endpgm
 ;
 ; GFX10_W32-LABEL: test_div_fmas_f64:
 ; GFX10_W32:       ; %bb.0:
 ; GFX10_W32-NEXT:    s_clause 0x1
 ; GFX10_W32-NEXT:    s_load_dword s2, s[0:1], 0x20
-; GFX10_W32-NEXT:    s_load_dwordx8 s[4:11], s[0:1], 0x0
+; GFX10_W32-NEXT:    s_load_dwordx8 s[4:11], s[0:1], null
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    s_and_b32 s0, 1, s2
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v0, s8
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v2, s10
 ; GFX10_W32-NEXT:    v_cmp_ne_u32_e64 vcc_lo, 0, s0
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, s9
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v3, s11
 ; GFX10_W32-NEXT:    v_div_fmas_f64 v[0:1], s[6:7], v[0:1], v[2:3]
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10_W32-NEXT:    global_store_dwordx2 v2, v[0:1], s[4:5]
 ; GFX10_W32-NEXT:    s_endpgm
 ;
 ; GFX10_W64-LABEL: test_div_fmas_f64:
 ; GFX10_W64:       ; %bb.0:
 ; GFX10_W64-NEXT:    s_clause 0x1
 ; GFX10_W64-NEXT:    s_load_dword s2, s[0:1], 0x20
-; GFX10_W64-NEXT:    s_load_dwordx8 s[4:11], s[0:1], 0x0
+; GFX10_W64-NEXT:    s_load_dwordx8 s[4:11], s[0:1], null
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    s_and_b32 s0, 1, s2
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v0, s8
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v2, s10
 ; GFX10_W64-NEXT:    v_cmp_ne_u32_e64 vcc, 0, s0
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, s9
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v3, s11
 ; GFX10_W64-NEXT:    v_div_fmas_f64 v[0:1], s[6:7], v[0:1], v[2:3]

 ; GFX8-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX8-NEXT:    flat_store_dword v[0:1], v2
 ; GFX8-NEXT:    s_endpgm
 ;
 ; GFX10_W32-LABEL: test_div_fmas_f32_cond_to_vcc:
 ; GFX10_W32:       ; %bb.0:
 ; GFX10_W32-NEXT:    s_clause 0x1
 ; GFX10_W32-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x8
-; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    s_cmp_eq_u32 s7, 0
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v0, s5
 ; GFX10_W32-NEXT:    s_cselect_b32 s0, 1, 0
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, s6
 ; GFX10_W32-NEXT:    s_and_b32 s0, 1, s0
 ; GFX10_W32-NEXT:    v_cmp_ne_u32_e64 vcc_lo, 0, s0
 ; GFX10_W32-NEXT:    v_div_fmas_f32 v0, s4, v0, v1
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W32-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W32-NEXT:    s_endpgm
 ;
 ; GFX10_W64-LABEL: test_div_fmas_f32_cond_to_vcc:
 ; GFX10_W64:       ; %bb.0:
 ; GFX10_W64-NEXT:    s_clause 0x1
 ; GFX10_W64-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x8
-; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    s_cmp_eq_u32 s7, 0
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v0, s5
 ; GFX10_W64-NEXT:    s_cselect_b32 s0, 1, 0
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, s6
 ; GFX10_W64-NEXT:    s_and_b32 s0, 1, s0
 ; GFX10_W64-NEXT:    v_cmp_ne_u32_e64 vcc, 0, s0
 ; GFX10_W64-NEXT:    v_div_fmas_f32 v0, s4, v0, v1

 ; GFX8-NEXT:    s_endpgm
 ;
 ; GFX10_W32-LABEL: test_div_fmas_f32_imm_false_cond_to_vcc:
 ; GFX10_W32:       ; %bb.0:
 ; GFX10_W32-NEXT:    s_clause 0x3
 ; GFX10_W32-NEXT:    s_load_dword s4, s[0:1], 0x4c
 ; GFX10_W32-NEXT:    s_load_dword s5, s[0:1], 0x70
 ; GFX10_W32-NEXT:    s_load_dword s6, s[0:1], 0x28
-; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W32-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10_W32-NEXT:    v_div_fmas_f32 v0, s6, v0, v1
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W32-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W32-NEXT:    s_endpgm
 ;
 ; GFX10_W64-LABEL: test_div_fmas_f32_imm_false_cond_to_vcc:
 ; GFX10_W64:       ; %bb.0:
 ; GFX10_W64-NEXT:    s_clause 0x3
 ; GFX10_W64-NEXT:    s_load_dword s4, s[0:1], 0x4c
 ; GFX10_W64-NEXT:    s_load_dword s5, s[0:1], 0x70
 ; GFX10_W64-NEXT:    s_load_dword s6, s[0:1], 0x28
-; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W64-NEXT:    s_mov_b64 vcc, 0
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10_W64-NEXT:    v_div_fmas_f32 v0, s6, v0, v1
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W64-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W64-NEXT:    s_endpgm

 ; GFX8-NEXT:    s_endpgm
 ;
 ; GFX10_W32-LABEL: test_div_fmas_f32_imm_true_cond_to_vcc:
 ; GFX10_W32:       ; %bb.0:
 ; GFX10_W32-NEXT:    s_clause 0x3
 ; GFX10_W32-NEXT:    s_load_dword s4, s[0:1], 0x4c
 ; GFX10_W32-NEXT:    s_load_dword s5, s[0:1], 0x70
 ; GFX10_W32-NEXT:    s_load_dword s6, s[0:1], 0x28
-; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W32-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W32-NEXT:    s_mov_b32 vcc_lo, -1
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10_W32-NEXT:    v_div_fmas_f32 v0, s6, v0, v1
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W32-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W32-NEXT:    s_endpgm
 ;
 ; GFX10_W64-LABEL: test_div_fmas_f32_imm_true_cond_to_vcc:
 ; GFX10_W64:       ; %bb.0:
 ; GFX10_W64-NEXT:    s_clause 0x3
 ; GFX10_W64-NEXT:    s_load_dword s4, s[0:1], 0x4c
 ; GFX10_W64-NEXT:    s_load_dword s5, s[0:1], 0x70
 ; GFX10_W64-NEXT:    s_load_dword s6, s[0:1], 0x28
-; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; GFX10_W64-NEXT:    s_mov_b64 vcc, -1
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10_W64-NEXT:    v_div_fmas_f32 v0, s6, v0, v1
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W64-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10_W64-NEXT:    s_endpgm

 ; GFX8-NEXT:    v_div_fmas_f32 v2, v1, v2, v3
 ; GFX8-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX8-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX8-NEXT:    flat_store_dword v[0:1], v2
 ; GFX8-NEXT:    s_endpgm
 ;
 ; GFX10_W32-LABEL: test_div_fmas_f32_logical_cond_to_vcc:
 ; GFX10_W32:       ; %bb.0:
-; GFX10_W32-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x0
+; GFX10_W32-NEXT:    s_load_dwordx4 s[4:7], s[0:1], null
 ; GFX10_W32-NEXT:    v_lshlrev_b32_e32 v1, 2, v0
 ; GFX10_W32-NEXT:    s_load_dword s0, s[0:1], 0x30
 ; GFX10_W32-NEXT:    v_cmp_eq_u32_e32 vcc_lo, 0, v0
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    global_load_dword v2, v1, s[6:7] glc dlc
 ; GFX10_W32-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10_W32-NEXT:    global_load_dword v3, v1, s[6:7] offset:4 glc dlc
 ; GFX10_W32-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10_W32-NEXT:    global_load_dword v4, v1, s[6:7] offset:8 glc dlc
 ; GFX10_W32-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W32-NEXT:    s_cmp_lg_u32 s0, 0
 ; GFX10_W32-NEXT:    s_cselect_b32 s0, 1, 0
 ; GFX10_W32-NEXT:    s_and_b32 s0, 1, s0
 ; GFX10_W32-NEXT:    v_cmp_ne_u32_e64 s0, 0, s0
 ; GFX10_W32-NEXT:    s_and_b32 vcc_lo, vcc_lo, s0
 ; GFX10_W32-NEXT:    v_div_fmas_f32 v0, v2, v3, v4
 ; GFX10_W32-NEXT:    global_store_dword v1, v0, s[4:5] offset:8
 ; GFX10_W32-NEXT:    s_endpgm
 ;
 ; GFX10_W64-LABEL: test_div_fmas_f32_logical_cond_to_vcc:
 ; GFX10_W64:       ; %bb.0:
-; GFX10_W64-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x0
+; GFX10_W64-NEXT:    s_load_dwordx4 s[4:7], s[0:1], null
 ; GFX10_W64-NEXT:    v_lshlrev_b32_e32 v1, 2, v0
 ; GFX10_W64-NEXT:    s_load_dword s0, s[0:1], 0x30
 ; GFX10_W64-NEXT:    v_cmp_eq_u32_e32 vcc, 0, v0
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    global_load_dword v2, v1, s[6:7] glc dlc
 ; GFX10_W64-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10_W64-NEXT:    global_load_dword v3, v1, s[6:7] offset:4 glc dlc
 ; GFX10_W64-NEXT:    s_waitcnt vmcnt(0)

 ; GFX10_W32-NEXT:    global_load_dwordx3 v[1:3], v1, s[2:3]
 ; GFX10_W32-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10_W32-NEXT:    s_mov_b32 s2, 0
 ; GFX10_W32-NEXT:    s_and_saveexec_b32 s3, vcc_lo
 ; GFX10_W32-NEXT:    s_cbranch_execz .LBB13_2
 ; GFX10_W32-NEXT:  ; %bb.1: ; %bb
 ; GFX10_W32-NEXT:    s_load_dwordx2 s[4:5], s[0:1], 0x50
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10_W32-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10_W32-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    s_cmp_lg_u32 s2, 0
 ; GFX10_W32-NEXT:    s_cselect_b32 s2, 1, 0
 ; GFX10_W32-NEXT:  .LBB13_2: ; %exit
 ; GFX10_W32-NEXT:    s_or_b32 exec_lo, exec_lo, s3
-; GFX10_W32-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10_W32-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10_W32-NEXT:    s_and_b32 s2, 1, s2
 ; GFX10_W32-NEXT:    v_cmp_ne_u32_e64 vcc_lo, 0, s2
 ; GFX10_W32-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10_W32-NEXT:    v_div_fmas_f32 v0, v1, v2, v3
 ; GFX10_W32-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W32-NEXT:    global_store_dword v1, v0, s[0:1] offset:8
 ; GFX10_W32-NEXT:    s_endpgm
 ;
 ; GFX10_W64-LABEL: test_div_fmas_f32_i1_phi_vcc:
 ; GFX10_W64:       ; %bb.0: ; %entry
 ; GFX10_W64-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x28
 ; GFX10_W64-NEXT:    v_lshlrev_b32_e32 v1, 2, v0
 ; GFX10_W64-NEXT:    v_cmp_eq_u32_e32 vcc, 0, v0
 ; GFX10_W64-NEXT:    s_mov_b32 s4, 0
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    global_load_dwordx3 v[1:3], v1, s[2:3]
 ; GFX10_W64-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10_W64-NEXT:    s_and_saveexec_b64 s[2:3], vcc
 ; GFX10_W64-NEXT:    s_cbranch_execz .LBB13_2
 ; GFX10_W64-NEXT:  ; %bb.1: ; %bb
 ; GFX10_W64-NEXT:    s_load_dwordx2 s[4:5], s[0:1], 0x50
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10_W64-NEXT:    s_load_dword s4, s[4:5], 0x0
+; GFX10_W64-NEXT:    s_load_dword s4, s[4:5], null
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    s_cmp_lg_u32 s4, 0
 ; GFX10_W64-NEXT:    s_cselect_b32 s4, 1, 0
 ; GFX10_W64-NEXT:  .LBB13_2: ; %exit
 ; GFX10_W64-NEXT:    s_or_b64 exec, exec, s[2:3]
-; GFX10_W64-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10_W64-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10_W64-NEXT:    s_and_b32 s2, 1, s4
 ; GFX10_W64-NEXT:    v_cmp_ne_u32_e64 vcc, 0, s2
 ; GFX10_W64-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10_W64-NEXT:    v_div_fmas_f32 v0, v1, v2, v3
 ; GFX10_W64-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10_W64-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_W64-NEXT:    global_store_dword v1, v0, s[0:1] offset:8
 ; GFX10_W64-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.end.cf.i32.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -global-isel -mtriple=amdgcn--amdhsa -mcpu=gfx1010 -mattr=+wavefrontsize32,-wavefrontsize64 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX10 %s
 ; RUN: llc -global-isel -mtriple=amdgcn--amdhsa -mcpu=gfx1100 -amdgpu-enable-delay-alu=0 -mattr=+wavefrontsize32,-wavefrontsize64 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX11 %s
 
 define amdgpu_kernel void @test_wave32(i32 %arg0, [8 x i32], i32 %saved) {
 ; GFX10-LABEL: test_wave32:
 ; GFX10:       ; %bb.0: ; %entry
-; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cmp_lg_u32 s0, 0
 ; GFX10-NEXT:    s_cbranch_scc1 .LBB0_2
 ; GFX10-NEXT:  ; %bb.1: ; %mid
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:  .LBB0_2: ; %bb

llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.global.atomic.csub.ll

; GFX11-NEXT:    s_setpc_b64 s[30:31]
   ret void
 }
 
 define amdgpu_kernel void @global_atomic_csub_sgpr_base_offset(ptr addrspace(1) %ptr, i32 %data) {
 ; GFX10-LABEL: global_atomic_csub_sgpr_base_offset:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0x1000
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    global_atomic_csub v0, v1, v0, s[0:1] glc
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX10-NEXT:    s_endpgm
 ;
; GFX11-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @global_atomic_csub_sgpr_base_offset_nortn(ptr addrspace(1) %ptr, i32 %data) {
 ; GFX10-LABEL: global_atomic_csub_sgpr_base_offset_nortn:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0x1000
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    global_atomic_csub v0, v1, v0, s[0:1] glc
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: global_atomic_csub_sgpr_base_offset_nortn:
 ; GFX11:       ; %bb.0:

llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.if.break.i32.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -global-isel -mtriple=amdgcn--amdhsa -mcpu=gfx1010 -mattr=+wavefrontsize32,-wavefrontsize64 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX10 %s
 ; RUN: llc -global-isel -mtriple=amdgcn--amdhsa -mcpu=gfx1100 -amdgpu-enable-delay-alu=0 -mattr=+wavefrontsize32,-wavefrontsize64 -verify-machineinstrs < %s | FileCheck -check-prefix=GFX11 %s
 
 define amdgpu_kernel void @test_wave32(i32 %arg0, [8 x i32], i32 %saved) {
 ; GFX10-LABEL: test_wave32:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[4:5], null
 ; GFX10-NEXT:    s_load_dword s1, s[4:5], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cmp_eq_u32 s0, 0
 ; GFX10-NEXT:    s_cselect_b32 s0, 1, 0
 ; GFX10-NEXT:    s_and_b32 s0, 1, s0
 ; GFX10-NEXT:    v_cmp_ne_u32_e64 s0, 0, s0
 ; GFX10-NEXT:    s_or_b32 s0, s0, s1
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0

llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.is.private.ll

 ; GFX9-NEXT:    s_mov_b64 s[0:1], src_private_base
 ; GFX9-NEXT:    v_cmp_eq_u32_e32 vcc, s1, v1
 ; GFX9-NEXT:    v_cndmask_b32_e64 v0, 0, 1, vcc
 ; GFX9-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: is_private_vgpr:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_load_dwordx2 v[0:1], v0, s[0:1] glc dlc
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b64 s[0:1], src_private_base
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, s1, v1
 ; GFX10-NEXT:    v_cndmask_b32_e64 v0, 0, 1, vcc_lo

 ; GFX9-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX9-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:  .LBB1_2: ; %bb1
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: is_private_sgpr:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    s_mov_b64 s[2:3], src_private_base
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cmp_lg_u32 s1, s3
 ; GFX10-NEXT:    s_cbranch_scc1 .LBB1_2
 ; GFX10-NEXT:  ; %bb.1: ; %bb0
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0

llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.is.shared.ll

 ; GFX9-NEXT:    s_mov_b64 s[0:1], src_shared_base
 ; GFX9-NEXT:    v_cmp_eq_u32_e32 vcc, s1, v1
 ; GFX9-NEXT:    v_cndmask_b32_e64 v0, 0, 1, vcc
 ; GFX9-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: is_local_vgpr:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_load_dwordx2 v[0:1], v0, s[0:1] glc dlc
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b64 s[0:1], src_shared_base
 ; GFX10-NEXT:    v_cmp_eq_u32_e32 vcc_lo, s1, v1
 ; GFX10-NEXT:    v_cndmask_b32_e64 v0, 0, 1, vcc_lo

 ; GFX9-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX9-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:  .LBB1_2: ; %bb1
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: is_local_sgpr:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    s_mov_b64 s[2:3], src_shared_base
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_cmp_lg_u32 s1, s3
 ; GFX10-NEXT:    s_cbranch_scc1 .LBB1_2
 ; GFX10-NEXT:  ; %bb.1: ; %bb0
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0

llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.trig.preop.ll

 ; GFX9-NEXT:    v_trig_preop_f64 v[0:1], s[0:1], v0
 ; GFX9-NEXT:    flat_store_dwordx2 v[0:1], v[0:1]
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: s_trig_preop_f64:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_trig_preop_f64 v[0:1], s[0:1], s2
 ; GFX10-NEXT:    flat_store_dwordx2 v[0:1], v[0:1]
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: s_trig_preop_f64:

 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    v_trig_preop_f64 v[0:1], s[0:1], 7
 ; GCN-NEXT:    flat_store_dwordx2 v[0:1], v[0:1]
 ; GCN-NEXT:    s_waitcnt vmcnt(0)
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: s_trig_preop_f64_imm:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_trig_preop_f64 v[0:1], s[0:1], 7
 ; GFX10-NEXT:    flat_store_dwordx2 v[0:1], v[0:1]
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: s_trig_preop_f64_imm:
 ; GFX11:       ; %bb.0:

llvm/test/CodeGen/AMDGPU/GlobalISel/sdivrem.ll

 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, s1, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, v0, v1
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, v0, v1
 ; GFX10-NEXT:    v_mul_hi_u32 v0, s0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, v0, s7
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v1, s0, v1
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    s_xor_b32 s4, s8, s6
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s7, v1
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s7, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s7, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s7, v1

 ; GFX9-NEXT:    v_subrev_co_u32_e32 v2, vcc, s2, v3
 ; GFX9-NEXT:    v_subb_co_u32_e32 v3, vcc, v5, v6, vcc
 ; GFX9-NEXT:    global_store_dwordx2 v4, v[0:1], s[4:5]
 ; GFX9-NEXT:    global_store_dwordx2 v4, v[2:3], s[6:7]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: sdivrem_i64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx8 s[4:11], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx8 s[4:11], s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_ashr_i32 s2, s9, 31
 ; GFX10-NEXT:    s_ashr_i32 s12, s11, 31
 ; GFX10-NEXT:    s_add_u32 s0, s8, s2
 ; GFX10-NEXT:    s_addc_u32 s1, s9, s2
 ; GFX10-NEXT:    s_add_u32 s8, s10, s12
 ; GFX10-NEXT:    s_mov_b32 s13, s12
 ; GFX10-NEXT:    s_addc_u32 s9, s11, s12

 ; GFX9-NEXT:    v_subrev_u32_e32 v2, s10, v2
 ; GFX9-NEXT:    v_subrev_u32_e32 v3, s11, v3
 ; GFX9-NEXT:    global_store_dwordx2 v4, v[0:1], s[0:1]
 ; GFX9-NEXT:    global_store_dwordx2 v4, v[2:3], s[2:3]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: sdivrem_v2i32:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx8 s[4:11], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx8 s[4:11], s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_ashr_i32 s1, s10, 31
 ; GFX10-NEXT:    s_ashr_i32 s2, s11, 31
 ; GFX10-NEXT:    s_add_i32 s0, s10, s1
 ; GFX10-NEXT:    s_add_i32 s3, s11, s2
 ; GFX10-NEXT:    s_xor_b32 s10, s0, s1
 ; GFX10-NEXT:    s_xor_b32 s3, s3, s2
 ; GFX10-NEXT:    v_cvt_f32_u32_e32 v0, s10

 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, v2, v6
 ; GFX10-NEXT:    v_add_nc_u32_e32 v3, v3, v7
 ; GFX10-NEXT:    s_xor_b32 s9, s9, s19
 ; GFX10-NEXT:    v_mul_hi_u32 v0, s10, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, s11, v1
 ; GFX10-NEXT:    v_mul_hi_u32 v2, s8, v2
 ; GFX10-NEXT:    v_mul_hi_u32 v3, s9, v3
 ; GFX10-NEXT:    s_xor_b32 s22, s18, s2
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], null
 ; GFX10-NEXT:    v_mul_lo_u32 v4, v0, s14
 ; GFX10-NEXT:    v_mul_lo_u32 v5, v1, s15
 ; GFX10-NEXT:    v_mul_lo_u32 v6, v2, s12
 ; GFX10-NEXT:    v_mul_lo_u32 v7, v3, s13
 ; GFX10-NEXT:    v_add_nc_u32_e32 v8, 1, v0
 ; GFX10-NEXT:    v_add_nc_u32_e32 v9, 1, v1
 ; GFX10-NEXT:    v_add_nc_u32_e32 v10, 1, v2
 ; GFX10-NEXT:    v_add_nc_u32_e32 v11, 1, v3

 ; GFX10-NEXT:    v_cndmask_b32_e64 v1, 0, 1, s3
 ; GFX10-NEXT:    v_add_nc_u32_e32 v7, v7, v11
 ; GFX10-NEXT:    v_add_co_u32 v9, s3, v10, v0
 ; GFX10-NEXT:    v_cndmask_b32_e64 v0, 0, 1, s3
 ; GFX10-NEXT:    v_mul_hi_u32 v2, v3, v2
 ; GFX10-NEXT:    v_add_nc_u32_e32 v6, v13, v6
 ; GFX10-NEXT:    v_add_co_u32 v4, vcc_lo, v4, v8
 ; GFX10-NEXT:    v_add3_u32 v5, v7, v0, v5
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], null
 ; GFX10-NEXT:    v_mul_hi_u32 v8, s14, v4
 ; GFX10-NEXT:    v_add3_u32 v2, v6, v1, v2
 ; GFX10-NEXT:    v_mad_u64_u32 v[0:1], s3, s8, v9, 0
 ; GFX10-NEXT:    v_mul_lo_u32 v6, s9, v9
 ; GFX10-NEXT:    v_mul_lo_u32 v7, s8, v5
 ; GFX10-NEXT:    v_add_co_ci_u32_e32 v2, vcc_lo, v3, v2, vcc_lo
 ; GFX10-NEXT:    v_mul_lo_u32 v3, s15, v4
 ; GFX10-NEXT:    v_mul_hi_u32 v4, s15, v4

 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, s1, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, v0, v1
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, v0, v1
 ; GFX10-NEXT:    v_mul_hi_u32 v0, s0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, v0, s7
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v1, s0, v1
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    s_xor_b32 s4, s8, s6
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s7, v1
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s7, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s7, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s7, v1

 ; GFX10-NEXT:    v_mul_hi_u32 v0, s0, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, s6, v1
 ; GFX10-NEXT:    v_mul_lo_u32 v2, v0, s1
 ; GFX10-NEXT:    v_mul_lo_u32 v3, v1, s2
 ; GFX10-NEXT:    v_add_nc_u32_e32 v5, 1, v0
 ; GFX10-NEXT:    v_add_nc_u32_e32 v4, 1, v1
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v2, s0, v2
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v3, s6, v3
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], null
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s1, v2
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v6, s1, v2
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v7, s2, v3
 ; GFX10-NEXT:    v_cmp_le_u32_e64 s0, s2, v3
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v5, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v2, v2, v6, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e64 v1, v1, v4, s0
 ; GFX10-NEXT:    v_cndmask_b32_e64 v3, v3, v7, s0

 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, s1, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, v0, v1
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, v0, v1
 ; GFX10-NEXT:    v_mul_hi_u32 v0, s0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, v0, s7
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v1, s0, v1
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    s_xor_b32 s4, s8, s6
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s7, v1
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s7, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s7, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s7, v1

 ; GFX10-NEXT:    v_mul_hi_u32 v0, s6, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, s0, v1
 ; GFX10-NEXT:    v_mul_lo_u32 v2, v0, s2
 ; GFX10-NEXT:    v_mul_lo_u32 v3, v1, s1
 ; GFX10-NEXT:    v_add_nc_u32_e32 v4, 1, v0
 ; GFX10-NEXT:    v_add_nc_u32_e32 v5, 1, v1
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v2, s6, v2
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v3, s0, v3
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], null
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v6, s2, v2
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s1, v3
 ; GFX10-NEXT:    v_cmp_le_u32_e64 s0, s2, v2
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v7, s1, v3
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v5, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e64 v0, v0, v4, s0
 ; GFX10-NEXT:    v_cndmask_b32_e64 v2, v2, v6, s0
 ; GFX10-NEXT:    v_cndmask_b32_e32 v3, v3, v7, vcc_lo

 ; GFX10-NEXT:    v_sub_nc_u32_e32 v1, s0, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s1, v1
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s1, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s1, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s1, v1
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    s_xor_b32 s4, s7, s6
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    v_xor_b32_e32 v0, s4, v0
 ; GFX10-NEXT:    v_xor_b32_e32 v1, s7, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v0, s4, v0
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v1, s7, v1

 ; GFX10-NEXT:    v_sub_nc_u32_e32 v1, s0, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s1, v1
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s1, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s1, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s1, v1
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    s_xor_b32 s4, s7, s6
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    v_xor_b32_e32 v0, s4, v0
 ; GFX10-NEXT:    v_xor_b32_e32 v1, s7, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v0, s4, v0
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v1, s7, v1

llvm/test/CodeGen/AMDGPU/GlobalISel/shl-ext-reduce.ll

 ; GFX9-NEXT:    v_mov_b32_e32 v4, s0
 ; GFX9-NEXT:    v_add_co_u32_e32 v2, vcc, v4, v2
 ; GFX9-NEXT:    v_addc_co_u32_e32 v3, vcc, v5, v3, vcc
 ; GFX9-NEXT:    global_store_dword v[2:3], v1, off
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: mulu24_shl64:
 ; GFX10:       ; %bb.0: ; %bb
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-NEXT:    v_and_b32_e32 v0, 6, v0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    v_mul_u32_u24_e32 v0, 7, v0
 ; GFX10-NEXT:    v_lshlrev_b64 v[2:3], 2, v[0:1]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v5, s1
 ; GFX10-NEXT:    v_mov_b32_e32 v4, s0
 ; GFX10-NEXT:    v_add_co_u32 v2, vcc_lo, v4, v2

 ; GFX9-NEXT:    v_or_b32_e32 v1, 0xff800000, v1
 ; GFX9-NEXT:    v_mul_i32_i24_e32 v1, -7, v1
 ; GFX9-NEXT:    v_lshlrev_b64 v[1:2], 3, v[1:2]
 ; GFX9-NEXT:    global_store_dwordx2 v0, v[1:2], s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: muli24_shl64:
 ; GFX10:       ; %bb.0: ; %bb
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v1, 2, v0
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_load_dword v1, v1, s[2:3]
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    v_or_b32_e32 v1, 0xff800000, v1
 ; GFX10-NEXT:    v_mul_i32_i24_e32 v1, -7, v1

llvm/test/CodeGen/AMDGPU/GlobalISel/smrd.ll

 ; FIXME: Need to add support for mubuf stores to enable this on SI.
 ; XUN: llc < %s -march=amdgcn -mcpu=tahiti -show-mc-encoding -verify-machineinstrs -global-isel | FileCheck --check-prefixes=SI,GCN %s
 ; RUN: llc < %s -march=amdgcn -mcpu=bonaire -show-mc-encoding -verify-machineinstrs -global-isel | FileCheck --check-prefixes=CI,GCN,SICIVI %s
 ; RUN: llc < %s -march=amdgcn -mcpu=tonga -show-mc-encoding -verify-machineinstrs -global-isel | FileCheck --check-prefixes=VI,GCN,SICIVI %s
-; RUN: llc -march=amdgcn -mcpu=gfx900 -show-mc-encoding -verify-machineinstrs -global-isel < %s | FileCheck --check-prefixes=GFX9_10,GCN,VIGFX9_10,SIVIGFX9_10  %s
-; RUN: llc -march=amdgcn -mcpu=gfx1010 -show-mc-encoding -verify-machineinstrs -global-isel < %s | FileCheck --check-prefixes=GFX9_10,GCN,VIGFX9_10,SIVIGFX9_10  %s
+; RUN: llc -march=amdgcn -mcpu=gfx900 -show-mc-encoding -verify-machineinstrs -global-isel < %s | FileCheck --check-prefixes=GFX9_10,GCN,VIGFX9_10,SIVIGFX9_10,GFX9  %s
+; RUN: llc -march=amdgcn -mcpu=gfx1010 -show-mc-encoding -verify-machineinstrs -global-isel < %s | FileCheck --check-prefixes=GFX9_10,GCN,VIGFX9_10,SIVIGFX9_10,GFX10  %s
 
 ; SMRD load with an immediate offset.
 ; GCN-LABEL: {{^}}smrd0:
 ; SICI: s_load_dword s{{[0-9]}}, s[{{[0-9]:[0-9]}}], 0x1 ; encoding: [0x01
 ; VIGFX9_10: s_load_dword s{{[0-9]}}, s[{{[0-9]:[0-9]}}], 0x4
 define amdgpu_kernel void @smrd0(ptr addrspace(4) %ptr) {
 entry:
   %0 = getelementptr i32, ptr addrspace(4) %ptr, i64 1
entry:
   store i32 %tmp1, ptr addrspace(1) %out
   ret void
 }
 
 ; Don't use a negative SGPR offset
 ; GCN-LABEL: {{^}}smrd7:
 ; GCN: s_add_u32 s{{[0-9]}}, s{{[0-9]}}, 0xffe00000
 ; SICIVI: s_load_dword s{{[0-9]}}, s[{{[0-9]:[0-9]}}], 0x0
-; GFX9_10: s_load_dword s{{[0-9]}}, s[{{[0-9]:[0-9]}}], 0x0
+; GFX9: s_load_dword s{{[0-9]}}, s[{{[0-9]:[0-9]}}], 0x0
+; GFX10: s_load_dword s{{[0-9]}}, s[{{[0-9]:[0-9]}}], null
 define amdgpu_kernel void @smrd7(ptr addrspace(1) %out, ptr addrspace(4) %ptr) #0 {
 entry:
   %tmp = getelementptr i32, ptr addrspace(4) %ptr, i64 -524288
   %tmp1 = load i32, ptr addrspace(4) %tmp
   store i32 %tmp1, ptr addrspace(1) %out
   ret void
 }

llvm/test/CodeGen/AMDGPU/GlobalISel/store-local.128.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v4, s0
 ; GFX7-NEXT:    ds_write_b128 v4, v[0:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s7
 ; GFX10-NEXT:    v_mov_b32_e32 v4, s2
 ; GFX10-NEXT:    ds_write_b128 v4, v[0:3]
 ; GFX10-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    ds_write_b8 v1, v0 offset:15
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32_align1:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_bfe_u32 s0, 8, 0x100000
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_bfe_u32 s3, s4, 0x100000
 ; GFX10-NEXT:    s_lshr_b32 s1, s4, 16
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_lshr_b32 s2, s5, 16
 ; GFX10-NEXT:    s_bfe_u32 s4, s5, 0x100000

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    ds_write_b16 v1, v0 offset:14
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32_align2:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s5
 ; GFX10-NEXT:    s_lshr_b32 s0, s4, 16
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s6
 ; GFX10-NEXT:    s_lshr_b32 s1, s5, 16
 ; GFX10-NEXT:    s_lshr_b32 s2, s6, 16

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s7
 ; GFX7-NEXT:    ds_write2_b32 v1, v0, v2 offset0:2 offset1:3
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32_align4:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v4, s7
 ; GFX10-NEXT:    ds_write2_b32 v1, v0, v2 offset1:1
 ; GFX10-NEXT:    ds_write2_b32 v1, v3, v4 offset0:2 offset1:3

 ; GFX7-NEXT:    v_mov_b32_e32 v4, s0
 ; GFX7-NEXT:    ds_write2_b64 v4, v[0:1], v[2:3] offset1:1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32_align8:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v4, s7
 ; GFX10-NEXT:    ds_write2_b32 v1, v0, v2 offset1:1
 ; GFX10-NEXT:    ds_write2_b32 v1, v3, v4 offset0:2 offset1:3

 ; GFX7-NEXT:    v_mov_b32_e32 v4, s0
 ; GFX7-NEXT:    ds_write_b128 v4, v[0:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32_align16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s7
 ; GFX10-NEXT:    v_mov_b32_e32 v4, s2
 ; GFX10-NEXT:    ds_write_b128 v4, v[0:3]
 ; GFX10-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/GlobalISel/store-local.96.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s0
 ; GFX7-NEXT:    ds_write_b96 v3, v[0:2]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[12:15], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s12
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s13
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s14
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s2
 ; GFX10-NEXT:    ds_write_b96 v3, v[0:2]
 ; GFX10-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    ds_write_b8 v1, v0 offset:11
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32_align1:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_bfe_u32 s0, 8, 0x100000
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_lshr_b32 s1, s4, 16
 ; GFX10-NEXT:    s_bfe_u32 s3, s4, 0x100000
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_lshr_b32 s2, s5, 16
 ; GFX10-NEXT:    s_bfe_u32 s4, s5, 0x100000

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    ds_write_b16 v1, v0 offset:10
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32_align2:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_lshr_b32 s0, s4, 16
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s5
 ; GFX10-NEXT:    s_lshr_b32 s1, s5, 16
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s6
 ; GFX10-NEXT:    s_lshr_b32 s2, s6, 16

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX7-NEXT:    ds_write_b32 v1, v0 offset:8
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32_align4:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s6
 ; GFX10-NEXT:    ds_write2_b32 v1, v0, v2 offset1:1
 ; GFX10-NEXT:    ds_write_b32 v1, v3 offset:8
 ; GFX10-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX7-NEXT:    ds_write_b32 v1, v0 offset:8
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32_align8:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s6
 ; GFX10-NEXT:    ds_write2_b32 v1, v0, v2 offset1:1
 ; GFX10-NEXT:    ds_write_b32 v1, v3 offset:8
 ; GFX10-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s0
 ; GFX7-NEXT:    ds_write_b96 v3, v[0:2]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32_align16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[12:15], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s12
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s13
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s14
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s2
 ; GFX10-NEXT:    ds_write_b96 v3, v[0:2]
 ; GFX10-NEXT:    s_endpgm
 ;

llvm/test/CodeGen/AMDGPU/GlobalISel/udivrem.ll

 ; GFX10-NEXT:    s_load_dwordx2 s[6:7], s[4:5], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_cvt_f32_u32_e32 v0, s7
 ; GFX10-NEXT:    s_sub_i32 s0, 0, s7
 ; GFX10-NEXT:    v_rcp_iflag_f32_e32 v0, v0
 ; GFX10-NEXT:    v_mul_f32_e32 v0, 0x4f7ffffe, v0
 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, s0, v0
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_mul_hi_u32 v1, v0, v1
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, v0, v1
 ; GFX10-NEXT:    v_mul_hi_u32 v0, s6, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, v0, s7
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v1, s6, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s7, v1
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s7, v1

 ; GFX9-NEXT:    v_cndmask_b32_e32 v2, v2, v3, vcc
 ; GFX9-NEXT:    v_cndmask_b32_e32 v3, v6, v5, vcc
 ; GFX9-NEXT:    global_store_dwordx2 v4, v[0:1], s[4:5]
 ; GFX9-NEXT:    global_store_dwordx2 v4, v[2:3], s[6:7]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: udivrem_i64:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx8 s[4:11], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx8 s[4:11], s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_cvt_f32_u32_e32 v0, s11
 ; GFX10-NEXT:    v_cvt_f32_u32_e32 v1, s10
 ; GFX10-NEXT:    s_sub_u32 s0, 0, s10
 ; GFX10-NEXT:    s_subb_u32 s1, 0, s11
 ; GFX10-NEXT:    v_mul_f32_e32 v0, 0x4f800000, v0
 ; GFX10-NEXT:    v_add_f32_e32 v0, v0, v1
 ; GFX10-NEXT:    v_rcp_iflag_f32_e32 v0, v0

 ; GFX9-NEXT:    v_cndmask_b32_e32 v3, v3, v4, vcc
 ; GFX9-NEXT:    v_mov_b32_e32 v4, 0
 ; GFX9-NEXT:    global_store_dwordx2 v4, v[0:1], s[4:5]
 ; GFX9-NEXT:    global_store_dwordx2 v4, v[2:3], s[6:7]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: udivrem_v2i32:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx8 s[4:11], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx8 s[4:11], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v8, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_cvt_f32_u32_e32 v0, s10
 ; GFX10-NEXT:    v_cvt_f32_u32_e32 v1, s11
 ; GFX10-NEXT:    s_sub_i32 s0, 0, s10
 ; GFX10-NEXT:    s_sub_i32 s1, 0, s11
 ; GFX10-NEXT:    v_rcp_iflag_f32_e32 v0, v0
 ; GFX10-NEXT:    v_rcp_iflag_f32_e32 v1, v1

 ; GFX9-NEXT:    global_store_dwordx4 v8, v[0:3], s[0:1]
 ; GFX9-NEXT:    global_store_dwordx4 v8, v[4:7], s[2:3]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: udivrem_v4i32:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx8 s[8:15], s[4:5], 0x10
 ; GFX10-NEXT:    v_mov_b32_e32 v8, 0
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_cvt_f32_u32_e32 v0, s12
 ; GFX10-NEXT:    v_cvt_f32_u32_e32 v1, s13
 ; GFX10-NEXT:    v_cvt_f32_u32_e32 v2, s14
 ; GFX10-NEXT:    v_cvt_f32_u32_e32 v3, s15
 ; GFX10-NEXT:    s_sub_i32 s0, 0, s12
 ; GFX10-NEXT:    v_rcp_iflag_f32_e32 v0, v0
 ; GFX10-NEXT:    v_rcp_iflag_f32_e32 v1, v1

 ; GFX10-NEXT:    v_cndmask_b32_e64 v10, 0, 1, s0
 ; GFX10-NEXT:    v_add_co_u32 v6, s0, v6, v8
 ; GFX10-NEXT:    v_cndmask_b32_e64 v6, 0, 1, s0
 ; GFX10-NEXT:    v_add_co_u32 v2, s0, v2, v11
 ; GFX10-NEXT:    v_cndmask_b32_e64 v8, 0, 1, s0
 ; GFX10-NEXT:    v_add3_u32 v1, v1, v13, v12
 ; GFX10-NEXT:    v_add_nc_u32_e32 v6, v7, v6
 ; GFX10-NEXT:    v_mul_hi_u32 v3, s11, v3
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], null
 ; GFX10-NEXT:    v_add_nc_u32_e32 v7, v10, v8
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v8, s9, v1
 ; GFX10-NEXT:    v_sub_co_u32 v10, vcc_lo, s8, v0
 ; GFX10-NEXT:    v_sub_co_ci_u32_e64 v11, s0, s9, v1, vcc_lo
 ; GFX10-NEXT:    v_subrev_co_ci_u32_e32 v0, vcc_lo, s13, v8, vcc_lo
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s12, v10
 ; GFX10-NEXT:    v_mov_b32_e32 v9, 0
 ; GFX10-NEXT:    v_cndmask_b32_e64 v1, 0, -1, vcc_lo

 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, s1, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, v0, v1
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, v0, v1
 ; GFX10-NEXT:    v_mul_hi_u32 v0, s0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, v0, s6
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v1, s0, v1
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s6, v1
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s6, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s6, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s6, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo

 ; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_cvt_f32_ubyte3_e32 v0, s0
 ; GFX10-NEXT:    s_bfe_u32 s1, s0, 0x80010
 ; GFX10-NEXT:    s_lshr_b32 s2, s0, 24
 ; GFX10-NEXT:    v_cvt_f32_ubyte0_e32 v1, s1
 ; GFX10-NEXT:    s_sub_i32 s3, 0, s2
 ; GFX10-NEXT:    v_rcp_iflag_f32_e32 v0, v0
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], null
 ; GFX10-NEXT:    v_rcp_iflag_f32_e32 v1, v1
 ; GFX10-NEXT:    v_mul_f32_e32 v0, 0x4f7ffffe, v0
 ; GFX10-NEXT:    v_mul_f32_e32 v1, 0x4f7ffffe, v1
 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v1, v1
 ; GFX10-NEXT:    v_mul_lo_u32 v2, s3, v0
 ; GFX10-NEXT:    s_sub_i32 s3, 0, s1
 ; GFX10-NEXT:    v_mul_lo_u32 v3, s3, v1

 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, s1, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, v0, v1
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, v0, v1
 ; GFX10-NEXT:    v_mul_hi_u32 v0, s0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, v0, s6
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v1, s0, v1
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s6, v1
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s6, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s6, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s6, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo

 ; GFX10-NEXT:    v_mul_f32_e32 v0, 0x4f7ffffe, v0
 ; GFX10-NEXT:    v_mul_f32_e32 v1, 0x4f7ffffe, v1
 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v1, v1
 ; GFX10-NEXT:    v_mul_lo_u32 v2, s3, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v3, s6, v1
 ; GFX10-NEXT:    s_and_b32 s3, s0, 0xffff
 ; GFX10-NEXT:    s_lshr_b32 s0, s0, 16
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[4:5], null
 ; GFX10-NEXT:    v_mul_hi_u32 v2, v0, v2
 ; GFX10-NEXT:    v_mul_hi_u32 v3, v1, v3
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, v0, v2
 ; GFX10-NEXT:    v_add_nc_u32_e32 v1, v1, v3
 ; GFX10-NEXT:    v_mul_hi_u32 v0, s3, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, s0, v1
 ; GFX10-NEXT:    v_mul_lo_u32 v2, v0, s2
 ; GFX10-NEXT:    v_mul_lo_u32 v3, v1, s1

 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, s1, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, v0, v1
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, v0, v1
 ; GFX10-NEXT:    v_mul_hi_u32 v0, s0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, v0, s6
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v1, s0, v1
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s6, v1
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s6, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s6, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s6, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo

 ; GFX10-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, s1, v0
 ; GFX10-NEXT:    v_mul_hi_u32 v1, v0, v1
 ; GFX10-NEXT:    v_add_nc_u32_e32 v0, v0, v1
 ; GFX10-NEXT:    v_mul_hi_u32 v0, s0, v0
 ; GFX10-NEXT:    v_mul_lo_u32 v1, v0, s6
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v1, s0, v1
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s6, v1
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s6, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo
 ; GFX10-NEXT:    v_cndmask_b32_e32 v1, v1, v3, vcc_lo
 ; GFX10-NEXT:    v_add_nc_u32_e32 v2, 1, v0
 ; GFX10-NEXT:    v_cmp_le_u32_e32 vcc_lo, s6, v1
 ; GFX10-NEXT:    v_subrev_nc_u32_e32 v3, s6, v1
 ; GFX10-NEXT:    v_cndmask_b32_e32 v0, v0, v2, vcc_lo

llvm/test/CodeGen/AMDGPU/GlobalISel/widen-i8-i16-scalar-loads.ll

 ; GFX9-NEXT:    global_store_byte v1, v0, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: constant_load_i8_align4:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    global_store_byte v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
   %ld = load i8, ptr addrspace(4) %in, align 4
   store i8 %ld, ptr addrspace(1) %out, align 4
   ret void
 }

 ; GFX9-NEXT:    global_store_short v1, v0, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: constant_load_i16_align4:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    global_store_short v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
   %ld = load i16, ptr addrspace(4) %in, align 4
   store i16 %ld, ptr addrspace(1) %out, align 4
   ret void
 }

 ; GFX9-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: sextload_i8_to_i32_align4:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_sext_i32_i8 s2, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
   %load = load i8, ptr addrspace(1) %in, align 4
   %sext = sext i8 %load to i32
   store i32 %sext, ptr addrspace(1) %out, align 4

 ; GFX9-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: sextload_i16_to_i32_align4:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_sext_i32_i16 s2, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
   %load = load i16, ptr addrspace(1) %in, align 4
   %sext = sext i16 %load to i32
   store i32 %sext, ptr addrspace(1) %out, align 4

 ; GFX9-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: zextload_i8_to_i32_align4:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_and_b32 s2, s2, 0xff
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
   %load = load i8, ptr addrspace(1) %in, align 4
   %zext = zext i8 %load to i32
   store i32 %zext, ptr addrspace(1) %out, align 4

 ; GFX9-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: zextload_i16_to_i32_align4:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_and_b32 s2, s2, 0xffff
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-NEXT:    s_endpgm
   %load = load i16, ptr addrspace(1) %in, align 4
   %zext = zext i16 %load to i32
   store i32 %zext, ptr addrspace(1) %out, align 4

llvm/test/CodeGen/AMDGPU/add.v2i16.ll

 ;
 ; GFX10-LABEL: s_test_add_v2i16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s0, s[6:7], 0x0
-; GFX10-NEXT:    s_load_dword s1, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[6:7], null
+; GFX10-NEXT:    s_load_dword s1, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_add_u16 v1, s0, s1
 ; GFX10-NEXT:    global_store_dword v0, v1, s[4:5]
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: s_test_add_v2i16:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_clause 0x1

 ; GFX9-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: s_test_add_self_v2i16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_add_u16 v1, s2, s2
 ; GFX10-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: s_test_add_self_v2i16:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_load_b128 s[0:3], s[0:1], 0x24

llvm/test/CodeGen/AMDGPU/bf16.ll

 ; GFX10-NEXT:    buffer_store_dword v2, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s4
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, test_arg_store@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, test_arg_store@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v2, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    v_writelane_b32 v2, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    buffer_store_short_d16_hi v0, v1, s[0:3], 0 offen
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    v_readlane_b32 s31, v2, 1
 ; GFX10-NEXT:    v_readlane_b32 s30, v2, 0
 ; GFX10-NEXT:    s_xor_saveexec_b32 s4, -1

 ; GFX10-NEXT:    buffer_store_dword v2, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s4
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, test_arg_store_v2bf16@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, test_arg_store_v2bf16@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v2, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    v_writelane_b32 v2, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    buffer_store_dword v0, v1, s[0:3], 0 offen
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    v_readlane_b32 s31, v2, 1
 ; GFX10-NEXT:    v_readlane_b32 s30, v2, 0
 ; GFX10-NEXT:    s_xor_saveexec_b32 s4, -1

 ; GFX10-NEXT:    buffer_store_dword v3, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s4
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, test_arg_store_v2bf16@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, test_arg_store_v2bf16@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_and_b32_e32 v4, 0xffff0000, v0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    v_writelane_b32 v3, s30, 0
 ; GFX10-NEXT:    v_and_b32_e32 v1, 0xffff, v1
 ; GFX10-NEXT:    v_and_or_b32 v0, 0xffff, v0, v4
 ; GFX10-NEXT:    v_writelane_b32 v3, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    buffer_store_short v1, v2, s[0:3], 0 offen offset:4
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX10-NEXT:    buffer_store_dword v3, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s4
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, test_arg_store_v2bf16@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, test_arg_store_v2bf16@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v3, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    v_writelane_b32 v3, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    buffer_store_short_d16_hi v1, v2, s[0:3], 0 offen offset:6
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    buffer_store_short v1, v2, s[0:3], 0 offen offset:4
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    buffer_store_short_d16_hi v0, v2, s[0:3], 0 offen offset:2

 ; GFX10-NEXT:    buffer_store_dword v5, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s4
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, test_arg_store_v2bf16@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, test_arg_store_v2bf16@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v5, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    v_writelane_b32 v5, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    buffer_store_short_d16_hi v3, v4, s[0:3], 0 offen offset:14
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    buffer_store_short v3, v4, s[0:3], 0 offen offset:12
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    buffer_store_short_d16_hi v2, v4, s[0:3], 0 offen offset:10

 ; GFX10-NEXT:    buffer_store_dword v9, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s4
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, test_arg_store_v2bf16@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, test_arg_store_v2bf16@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v9, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    v_writelane_b32 v9, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    buffer_store_short_d16_hi v7, v8, s[0:3], 0 offen offset:30
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    buffer_store_short v7, v8, s[0:3], 0 offen offset:28
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    buffer_store_short_d16_hi v6, v8, s[0:3], 0 offen offset:26

llvm/test/CodeGen/AMDGPU/bug-sdag-emitcopyfromreg.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
 ; RUN: llc -march=amdgcn -mcpu=gfx1010 < %s | FileCheck %s -check-prefix=ISA
 ; RUN: llc -march=amdgcn -mcpu=gfx1010 -stop-before=si-fix-sgpr-copies < %s | FileCheck %s -check-prefix=MIR
 
 define void @f(i32 %arg, ptr %ptr) {
 ; ISA-LABEL: f:
 ; ISA:       ; %bb.0: ; %bb
 ; ISA-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; ISA-NEXT:    s_waitcnt_vscnt null, 0x0
 ; ISA-NEXT:    s_mov_b64 s[4:5], 0
 ; ISA-NEXT:    v_cmp_gt_i32_e32 vcc_lo, 1, v0
-; ISA-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; ISA-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; ISA-NEXT:    v_mov_b32_e32 v7, 0
 ; ISA-NEXT:    s_waitcnt lgkmcnt(0)
 ; ISA-NEXT:    s_cmp_lg_u32 s4, 0
 ; ISA-NEXT:    s_cselect_b32 s6, -1, 0
 ; ISA-NEXT:    s_and_b32 s6, s6, exec_lo
 ; ISA-NEXT:    s_cselect_b32 s6, s5, 0
 ; ISA-NEXT:    s_lshr_b32 s7, 1, s4
 ; ISA-NEXT:    s_cmp_lg_u32 s4, 0

 ; ISA-NEXT:    s_andn2_b32 exec_lo, exec_lo, s4
 ; ISA-NEXT:    s_cbranch_execnz .LBB0_1
 ; ISA-NEXT:  ; %bb.2: ; %bb21
 ; ISA-NEXT:    s_or_b32 exec_lo, exec_lo, s4
 ; ISA-NEXT:    flat_store_dword v[1:2], v6
 ; ISA-NEXT:    s_waitcnt lgkmcnt(0)
 ; ISA-NEXT:    s_waitcnt_vscnt null, 0x0
 ; ISA-NEXT:    s_setpc_b64 s[30:31]
-  ; MIR-LABEL: name: f
-  ; MIR: bb.0.bb:
-  ; MIR-NEXT:   successors: %bb.1(0x80000000)
-  ; MIR-NEXT:   liveins: $vgpr0, $vgpr1, $vgpr2
-  ; MIR-NEXT: {{  $}}
-  ; MIR-NEXT:   [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr2
-  ; MIR-NEXT:   [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
-  ; MIR-NEXT:   [[COPY2:%[0-9]+]]:vgpr_32 = COPY $vgpr0
-  ; MIR-NEXT:   [[S_MOV_B64_:%[0-9]+]]:sreg_64 = S_MOV_B64 0
-  ; MIR-NEXT:   [[S_LOAD_DWORDX2_IMM:%[0-9]+]]:sreg_64_xexec = S_LOAD_DWORDX2_IMM killed [[S_MOV_B64_]], 0, 0 :: (invariant load (s64) from `ptr addrspace(4) null`, align 4294967296, addrspace 4)
-  ; MIR-NEXT:   [[COPY3:%[0-9]+]]:sreg_32 = COPY [[S_LOAD_DWORDX2_IMM]].sub1
-  ; MIR-NEXT:   [[COPY4:%[0-9]+]]:sreg_32 = COPY [[S_LOAD_DWORDX2_IMM]].sub0
-  ; MIR-NEXT:   [[S_MOV_B32_:%[0-9]+]]:sreg_32 = S_MOV_B32 0
-  ; MIR-NEXT:   S_CMP_LG_U32 [[COPY4]], [[S_MOV_B32_]], implicit-def $scc
-  ; MIR-NEXT:   [[COPY5:%[0-9]+]]:sreg_32_xm0_xexec = COPY $scc
-  ; MIR-NEXT:   $scc = COPY [[COPY5]]
-  ; MIR-NEXT:   [[S_CSELECT_B32_:%[0-9]+]]:sreg_32 = S_CSELECT_B32 [[COPY3]], [[S_MOV_B32_]], implicit $scc
-  ; MIR-NEXT:   [[S_MOV_B32_1:%[0-9]+]]:sreg_32 = S_MOV_B32 1
-  ; MIR-NEXT:   [[S_LSHR_B32_:%[0-9]+]]:sreg_32 = S_LSHR_B32 [[S_MOV_B32_1]], [[COPY4]], implicit-def dead $scc
-  ; MIR-NEXT:   S_CMP_LG_U32 [[COPY4]], [[S_MOV_B32_]], implicit-def $scc
-  ; MIR-NEXT:   [[COPY6:%[0-9]+]]:sreg_32_xm0_xexec = COPY $scc
-  ; MIR-NEXT:   $scc = COPY [[COPY6]]
-  ; MIR-NEXT:   [[S_CSELECT_B32_1:%[0-9]+]]:sreg_32 = S_CSELECT_B32 killed [[S_LSHR_B32_]], [[S_MOV_B32_]], implicit $scc
-  ; MIR-NEXT:   [[S_LSHR_B32_1:%[0-9]+]]:sreg_32 = S_LSHR_B32 [[COPY3]], [[S_MOV_B32_1]], implicit-def dead $scc
-  ; MIR-NEXT:   S_CMP_LG_U32 [[COPY4]], [[S_MOV_B32_]], implicit-def $scc
-  ; MIR-NEXT:   [[COPY7:%[0-9]+]]:sreg_32_xm0_xexec = COPY $scc
-  ; MIR-NEXT:   [[REG_SEQUENCE:%[0-9]+]]:sreg_64 = REG_SEQUENCE [[COPY1]], %subreg.sub0, [[COPY]], %subreg.sub1
-  ; MIR-NEXT:   [[COPY8:%[0-9]+]]:vreg_64 = COPY [[REG_SEQUENCE]]
-  ; MIR-NEXT:   $scc = COPY [[COPY7]]
-  ; MIR-NEXT:   [[S_CSELECT_B32_2:%[0-9]+]]:sreg_32 = S_CSELECT_B32 killed [[S_LSHR_B32_1]], [[S_MOV_B32_]], implicit $scc
-  ; MIR-NEXT:   [[V_CVT_F32_I32_e64_:%[0-9]+]]:vgpr_32 = V_CVT_F32_I32_e64 killed [[S_CSELECT_B32_2]], 0, 0, implicit $mode, implicit $exec
-  ; MIR-NEXT:   [[S_MOV_B32_2:%[0-9]+]]:sreg_32 = S_MOV_B32 2147483647
-  ; MIR-NEXT:   [[COPY9:%[0-9]+]]:sreg_32 = COPY [[V_CVT_F32_I32_e64_]]
-  ; MIR-NEXT:   [[S_AND_B32_:%[0-9]+]]:sgpr_32 = S_AND_B32 killed [[COPY9]], killed [[S_MOV_B32_2]], implicit-def dead $scc
-  ; MIR-NEXT:   [[S_MOV_B32_3:%[0-9]+]]:sgpr_32 = S_MOV_B32 1065353216
-  ; MIR-NEXT:   [[S_MOV_B32_4:%[0-9]+]]:sgpr_32 = S_MOV_B32 0
-  ; MIR-NEXT:   [[COPY10:%[0-9]+]]:vgpr_32 = COPY killed [[S_MOV_B32_3]]
-  ; MIR-NEXT:   [[V_CNDMASK_B32_e64_:%[0-9]+]]:vgpr_32 = V_CNDMASK_B32_e64 0, [[S_MOV_B32_4]], 0, [[COPY10]], [[COPY7]], implicit $exec
-  ; MIR-NEXT:   [[COPY11:%[0-9]+]]:sgpr_32 = COPY [[V_CNDMASK_B32_e64_]]
-  ; MIR-NEXT:   [[V_CVT_F32_UBYTE0_e64_:%[0-9]+]]:vgpr_32 = V_CVT_F32_UBYTE0_e64 killed [[S_CSELECT_B32_1]], 0, 0, implicit $exec
-  ; MIR-NEXT:   [[COPY12:%[0-9]+]]:sgpr_32 = COPY [[V_CVT_F32_UBYTE0_e64_]]
-  ; MIR-NEXT:   [[V_CVT_F32_I32_e64_1:%[0-9]+]]:vgpr_32 = V_CVT_F32_I32_e64 killed [[S_CSELECT_B32_]], 0, 0, implicit $mode, implicit $exec
-  ; MIR-NEXT:   [[COPY13:%[0-9]+]]:sgpr_32 = COPY [[V_CVT_F32_I32_e64_1]]
-  ; MIR-NEXT:   [[V_CMP_LT_I32_e64_:%[0-9]+]]:sreg_32 = V_CMP_LT_I32_e64 [[COPY2]], [[S_MOV_B32_1]], implicit $exec
-  ; MIR-NEXT:   [[COPY14:%[0-9]+]]:vreg_1 = COPY [[V_CMP_LT_I32_e64_]]
-  ; MIR-NEXT: {{  $}}
-  ; MIR-NEXT: bb.1.bb14:
-  ; MIR-NEXT:   successors: %bb.2(0x04000000), %bb.1(0x7c000000)
-  ; MIR-NEXT: {{  $}}
-  ; MIR-NEXT:   [[PHI:%[0-9]+]]:sreg_32 = PHI [[S_MOV_B32_]], %bb.0, %7, %bb.1
-  ; MIR-NEXT:   [[PHI1:%[0-9]+]]:sgpr_32 = PHI [[S_MOV_B32_4]], %bb.0, %8, %bb.1
-  ; MIR-NEXT:   [[COPY15:%[0-9]+]]:sreg_32 = COPY [[COPY14]]
-  ; MIR-NEXT:   [[SI_IF_BREAK:%[0-9]+]]:sreg_32 = SI_IF_BREAK [[COPY15]], [[PHI]], implicit-def dead $scc
-  ; MIR-NEXT:   [[V_ADD_F32_e64_:%[0-9]+]]:vgpr_32 = nofpexcept V_ADD_F32_e64 0, [[PHI1]], 0, [[COPY11]], 0, 0, implicit $mode, implicit $exec
-  ; MIR-NEXT:   [[V_ADD_F32_e64_1:%[0-9]+]]:vgpr_32 = nofpexcept V_ADD_F32_e64 0, killed [[V_ADD_F32_e64_]], 0, [[S_AND_B32_]], 0, 0, implicit $mode, implicit $exec
-  ; MIR-NEXT:   [[V_ADD_F32_e64_2:%[0-9]+]]:vgpr_32 = nofpexcept V_ADD_F32_e64 0, killed [[V_ADD_F32_e64_1]], 0, [[COPY12]], 0, 0, implicit $mode, implicit $exec
-  ; MIR-NEXT:   [[V_ADD_F32_e64_3:%[0-9]+]]:vgpr_32 = nofpexcept V_ADD_F32_e64 0, killed [[V_ADD_F32_e64_2]], 0, [[COPY13]], 0, 0, implicit $mode, implicit $exec
-  ; MIR-NEXT:   [[COPY16:%[0-9]+]]:sgpr_32 = COPY [[V_ADD_F32_e64_3]]
-  ; MIR-NEXT:   SI_LOOP [[SI_IF_BREAK]], %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
-  ; MIR-NEXT:   S_BRANCH %bb.2
-  ; MIR-NEXT: {{  $}}
-  ; MIR-NEXT: bb.2.bb21:
-  ; MIR-NEXT:   [[PHI2:%[0-9]+]]:vgpr_32 = PHI [[PHI1]], %bb.1
-  ; MIR-NEXT:   [[PHI3:%[0-9]+]]:sreg_32 = PHI [[SI_IF_BREAK]], %bb.1
-  ; MIR-NEXT:   SI_END_CF [[PHI3]], implicit-def dead $exec, implicit-def dead $scc, implicit $exec
-  ; MIR-NEXT:   FLAT_STORE_DWORD [[COPY8]], [[PHI2]], 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %ir.ptr)
-  ; MIR-NEXT:   SI_RETURN
 bb:
   %i = load <2 x i32>, ptr addrspace(4) null, align 4294967296
   %i1 = extractelement <2 x i32> %i, i64 1
   %i2 = extractelement <2 x i32> %i, i64 0
   %i3 = lshr i32 %i1, 1
   %i4 = icmp ne i32 %i2, 0
   %i5 = select i1 %i4, i32 %i3, i32 0
   %i6 = sitofp i32 %i5 to float
bb14:
   br i1 %i20, label %bb14, label %bb21
 
 bb21:
   store float %i15, ptr %ptr, align 4
   ret void
 }
 
 declare float @llvm.fabs.f32(float)
+;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
+; MIR: {{.*}}

llvm/test/CodeGen/AMDGPU/cgp-addressing-modes-gfx1030.ll

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: opt -S -codegenprepare -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1030 < %s | FileCheck -check-prefix=OPT %s
 ; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx1030 < %s | FileCheck -check-prefix=GCN %s
 
 ; Make sure we match the addressing mode offset of csub intrinsics across blocks.
 
 define amdgpu_kernel void @test_sink_small_offset_global_atomic_csub_i32(ptr addrspace(1) %out, ptr addrspace(1) %in) {
 ; OPT-LABEL: @test_sink_small_offset_global_atomic_csub_i32(
 ; OPT-NEXT:  entry:

 ; OPT-NEXT:    [[OUT_GEP:%.*]] = getelementptr i32, ptr addrspace(1) [[OUT:%.*]], i32 999999
 ; OPT-NEXT:    store i32 [[X]], ptr addrspace(1) [[OUT_GEP]], align 4
 ; OPT-NEXT:    br label [[DONE:%.*]]
 ; OPT:       done:
 ; OPT-NEXT:    ret void
 ;
 ; GCN-LABEL: test_sink_small_offset_global_atomic_csub_i32:
 ; GCN:       ; %bb.0: ; %entry
-; GCN-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GCN-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GCN-NEXT:    v_mbcnt_lo_u32_b32 v0, -1, 0
 ; GCN-NEXT:    v_cmp_ne_u32_e32 vcc_lo, 0, v0
 ; GCN-NEXT:    v_mov_b32_e32 v0, 0
 ; GCN-NEXT:    s_and_saveexec_b32 s4, vcc_lo
 ; GCN-NEXT:    s_cbranch_execz .LBB0_2
 ; GCN-NEXT:  ; %bb.1: ; %if
 ; GCN-NEXT:    v_mov_b32_e32 v0, 0
 ; GCN-NEXT:    v_mov_b32_e32 v1, 2

llvm/test/CodeGen/AMDGPU/chain-hi-to-lo.ll

 ; FLATSCR-NEXT:    scratch_load_dword v0, off, vcc_lo offset:4
 ; FLATSCR-NEXT:    scratch_load_dword v1, off, vcc_hi offset:6
 ; FLATSCR-NEXT:    s_waitcnt vmcnt(0)
 ; FLATSCR-NEXT:    global_store_dwordx2 v2, v[0:1], s[2:3]
 ; FLATSCR-NEXT:    s_endpgm
 ;
 ; GFX10_DEFAULT-LABEL: vload2_private:
 ; GFX10_DEFAULT:       ; %bb.0: ; %entry
-; GFX10_DEFAULT-NEXT:    s_load_dwordx4 s[4:7], s[4:5], 0x0
+; GFX10_DEFAULT-NEXT:    s_load_dwordx4 s[4:7], s[4:5], null
 ; GFX10_DEFAULT-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10_DEFAULT-NEXT:    s_add_u32 s0, s0, s9
 ; GFX10_DEFAULT-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10_DEFAULT-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10_DEFAULT-NEXT:    global_load_ushort v0, v2, s[4:5]
 ; GFX10_DEFAULT-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10_DEFAULT-NEXT:    buffer_store_short v0, off, s[0:3], 0 offset:4
 ; GFX10_DEFAULT-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX10_DEFAULT-NEXT:    s_endpgm
 ;
 ; FLATSCR_GFX10-LABEL: vload2_private:
 ; FLATSCR_GFX10:       ; %bb.0: ; %entry
 ; FLATSCR_GFX10-NEXT:    s_add_u32 s2, s2, s5
 ; FLATSCR_GFX10-NEXT:    s_addc_u32 s3, s3, 0
 ; FLATSCR_GFX10-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; FLATSCR_GFX10-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
-; FLATSCR_GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x0
+; FLATSCR_GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], null
 ; FLATSCR_GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; FLATSCR_GFX10-NEXT:    s_mov_b32 s5, 0
 ; FLATSCR_GFX10-NEXT:    s_mov_b32 s4, 0
 ; FLATSCR_GFX10-NEXT:    s_mov_b32 vcc_lo, 0
 ; FLATSCR_GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; FLATSCR_GFX10-NEXT:    global_load_ushort v0, v2, s[0:1]
 ; FLATSCR_GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; FLATSCR_GFX10-NEXT:    scratch_store_short off, v0, s5 offset:4

llvm/test/CodeGen/AMDGPU/cvt_f32_ubyte.ll

 ; VI-NEXT:    buffer_store_byte v2, off, s[0:3], 0
 ; VI-NEXT:    s_waitcnt vmcnt(2)
 ; VI-NEXT:    buffer_store_byte v3, off, s[0:3], 0
 ; VI-NEXT:    buffer_store_byte v0, off, s[0:3], 0
 ; VI-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: cvt_f32_ubyte0_vector:
 ; GFX10:       ; %bb.0: ; %entry
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_clause 0x3
 ; GFX10-NEXT:    global_load_ubyte v1, v0, s[0:1] offset:3
 ; GFX10-NEXT:    global_load_ubyte v2, v0, s[0:1] offset:2
 ; GFX10-NEXT:    global_load_ubyte v3, v0, s[0:1] offset:1
 ; GFX10-NEXT:    global_load_ubyte v4, v0, s[0:1]
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
-; GFX10-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt vmcnt(3)
 ; GFX10-NEXT:    v_cvt_f32_ubyte0_e32 v0, v1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_fma_f32 v0, s0, v0, 0.5
 ; GFX10-NEXT:    v_cvt_i32_f32_e32 v0, v0
 ; GFX10-NEXT:    s_waitcnt vmcnt(2)
 ; GFX10-NEXT:    global_store_byte v[0:1], v2, off
 ; GFX10-NEXT:    s_waitcnt vmcnt(1)

llvm/test/CodeGen/AMDGPU/dagcombine-fma-fmad.ll

 ; GCN-NEXT:    s_buffer_load_dwordx4 s[4:7], s[0:3], 0x50
 ; GCN-NEXT:    s_nop 0
 ; GCN-NEXT:    s_buffer_load_dword s0, s[0:3], 0x2c
 ; GCN-NEXT:    v_sub_f32_e64 v5, s24, s28
 ; GCN-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-NEXT:    s_clause 0x4
 ; GCN-NEXT:    s_buffer_load_dwordx4 s[8:11], s[0:3], 0x60
 ; GCN-NEXT:    s_buffer_load_dwordx4 s[12:15], s[0:3], 0x20
-; GCN-NEXT:    s_buffer_load_dwordx4 s[16:19], s[0:3], 0x0
+; GCN-NEXT:    s_buffer_load_dwordx4 s[16:19], s[0:3], null
 ; GCN-NEXT:    s_buffer_load_dwordx4 s[20:23], s[0:3], 0x70
 ; GCN-NEXT:    s_buffer_load_dwordx4 s[24:27], s[0:3], 0x10
 ; GCN-NEXT:    v_fma_f32 v1, v1, v5, s28
 ; GCN-NEXT:    v_max_f32_e64 v6, s0, s0 clamp
 ; GCN-NEXT:    v_add_f32_e64 v5, s29, -1.0
 ; GCN-NEXT:    v_sub_f32_e32 v8, s0, v1
 ; GCN-NEXT:    v_fma_f32 v7, -s2, v6, s6
 ; GCN-NEXT:    v_fma_f32 v5, v6, v5, 1.0

llvm/test/CodeGen/AMDGPU/ds-sub-offset.ll

 ; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    ds_write_b32 v3, v4 offset:12
 ; GFX9-NEXT:    global_store_dword v[0:1], v2, off
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: write_ds_sub0_offset0_global_clamp_bit:
 ; GFX10:       ; %bb.0: ; %entry
-; GFX10-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v3, 0x7b
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v2, 0, v0
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    ds_write_b32 v2, v3 offset:12
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    ds_write_b32 v3, v4 offset:65532
 ; GFX9-NEXT:    global_store_dword v[0:1], v2, off
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: write_ds_sub_max_offset_global_clamp_bit:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-NEXT:    v_not_b32_e32 v0, v0
 ; GFX10-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v3, 0x7b
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 2, v0
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    ds_write_b32 v2, v3 offset:65532
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    ds_write2_b32 v3, v4, v5 offset1:1
 ; GFX9-NEXT:    global_store_dword v[0:1], v2, off
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: add_x_shl_neg_to_sub_misaligned_i64_max_offset_clamp_bit:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v3, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v4, 0x7b
 ; GFX10-NEXT:    v_sub_nc_u32_e32 v2, 0, v0
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    ds_write_b32 v2, v3 offset:1023

llvm/test/CodeGen/AMDGPU/expand-scalar-carry-out-select-user.ll

 ; GFX9-NEXT:    v_cndmask_b32_e32 v0, v1, v0, vcc
 ; GFX9-NEXT:    s_setpc_b64 s[30:31]
 ;
 ; GFX10-LABEL: s_add_co_select_user:
 ; GFX10:       ; %bb.0: ; %bb
 ; GFX10-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-NEXT:    s_mov_b64 s[4:5], 0
-; GFX10-NEXT:    s_load_dword s4, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s4, s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_add_co_u32 v0, s5, s4, s4
 ; GFX10-NEXT:    s_cmp_lg_u32 s5, 0
 ; GFX10-NEXT:    s_addc_u32 s5, s4, 0
 ; GFX10-NEXT:    s_cselect_b32 s6, -1, 0
 ; GFX10-NEXT:    s_and_b32 s6, s6, exec_lo
 ; GFX10-NEXT:    s_cselect_b32 s5, s5, 0
 ; GFX10-NEXT:    s_cmp_gt_u32 s4, 31

 ; GFX9-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX9-NEXT:    v_mov_b32_e32 v2, 10
 ; GFX9-NEXT:    global_store_dword v[0:1], v2, off
 ; GFX9-NEXT:    s_waitcnt vmcnt(0)
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: s_add_co_br_user:
 ; GFX10:       ; %bb.0: ; %bb
-; GFX10-NEXT:    s_load_dword s0, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[4:5], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_add_i32 s1, s0, s0
 ; GFX10-NEXT:    s_cmp_lt_u32 s1, s0
 ; GFX10-NEXT:    s_cselect_b32 s1, -1, 0
 ; GFX10-NEXT:    v_cndmask_b32_e64 v0, 0, 1, s1
 ; GFX10-NEXT:    s_cmp_lg_u32 s1, 0
 ; GFX10-NEXT:    s_addc_u32 s0, s0, 0
 ; GFX10-NEXT:    v_cmp_ge_u32_e32 vcc_lo, s0, v0

llvm/test/CodeGen/AMDGPU/flat-scratch-init.ll

 ; FLAT_SCR_OPT-NEXT:    s_addc_u32 s9, s9, 0
 ; FLAT_SCR_OPT-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s8
 ; FLAT_SCR_OPT-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s9
 ; FLAT_SCR_OPT-NEXT:    s_mov_b64 s[8:9], s[4:5]
 ; FLAT_SCR_OPT-NEXT:    s_getpc_b64 s[4:5]
 ; FLAT_SCR_OPT-NEXT:    s_add_u32 s4, s4, extern_func@gotpcrel32@lo+4
 ; FLAT_SCR_OPT-NEXT:    s_addc_u32 s5, s5, extern_func@gotpcrel32@hi+12
 ; FLAT_SCR_OPT-NEXT:    v_lshlrev_b32_e32 v2, 20, v2
-; FLAT_SCR_OPT-NEXT:    s_load_dwordx2 s[16:17], s[4:5], 0x0
+; FLAT_SCR_OPT-NEXT:    s_load_dwordx2 s[16:17], s[4:5], null
 ; FLAT_SCR_OPT-NEXT:    v_lshlrev_b32_e32 v1, 10, v1
 ; FLAT_SCR_OPT-NEXT:    s_mov_b32 s14, s12
 ; FLAT_SCR_OPT-NEXT:    s_mov_b32 s13, s11
 ; FLAT_SCR_OPT-NEXT:    s_mov_b32 s12, s10
 ; FLAT_SCR_OPT-NEXT:    s_mov_b64 s[10:11], s[6:7]
 ; FLAT_SCR_OPT-NEXT:    v_or3_b32 v31, v0, v1, v2
 ; FLAT_SCR_OPT-NEXT:    s_mov_b64 s[4:5], s[0:1]
 ; FLAT_SCR_OPT-NEXT:    s_mov_b64 s[6:7], s[2:3]
 ; FLAT_SCR_OPT-NEXT:    s_waitcnt lgkmcnt(0)
 ; FLAT_SCR_OPT-NEXT:    s_swappc_b64 s[30:31], s[16:17]
 ; FLAT_SCR_OPT-NEXT:    s_endpgm
 ;
 ; FLAT_SCR_ARCH-LABEL: kernel_calls_no_stack:
 ; FLAT_SCR_ARCH:       ; %bb.0:
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b32 s13, s9
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b32 s12, s8
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b64 s[8:9], s[4:5]
 ; FLAT_SCR_ARCH-NEXT:    s_getpc_b64 s[4:5]
 ; FLAT_SCR_ARCH-NEXT:    s_add_u32 s4, s4, extern_func@gotpcrel32@lo+4
 ; FLAT_SCR_ARCH-NEXT:    s_addc_u32 s5, s5, extern_func@gotpcrel32@hi+12
 ; FLAT_SCR_ARCH-NEXT:    v_lshlrev_b32_e32 v2, 20, v2
-; FLAT_SCR_ARCH-NEXT:    s_load_dwordx2 s[16:17], s[4:5], 0x0
+; FLAT_SCR_ARCH-NEXT:    s_load_dwordx2 s[16:17], s[4:5], null
 ; FLAT_SCR_ARCH-NEXT:    v_lshlrev_b32_e32 v1, 10, v1
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b32 s14, s10
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b64 s[10:11], s[6:7]
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b64 s[4:5], s[0:1]
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b64 s[6:7], s[2:3]
 ; FLAT_SCR_ARCH-NEXT:    v_or3_b32 v31, v0, v1, v2
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b32 s32, 0
 ; FLAT_SCR_ARCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; FLAT_SCR_ARCH-NEXT:    s_swappc_b64 s[30:31], s[16:17]
 ; FLAT_SCR_ARCH-NEXT:    s_endpgm
   call void @extern_func()
   ret void
 }
 
 define amdgpu_kernel void @test(ptr addrspace(1) %out, i32 %in) {
 ; FLAT_SCR_OPT-LABEL: test:
 ; FLAT_SCR_OPT:       ; %bb.0:
 ; FLAT_SCR_OPT-NEXT:    s_add_u32 s2, s2, s5
 ; FLAT_SCR_OPT-NEXT:    s_addc_u32 s3, s3, 0
 ; FLAT_SCR_OPT-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; FLAT_SCR_OPT-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
-; FLAT_SCR_OPT-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; FLAT_SCR_OPT-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; FLAT_SCR_OPT-NEXT:    s_mov_b32 s104, exec_lo
 ; FLAT_SCR_OPT-NEXT:    s_mov_b32 exec_lo, 3
 ; FLAT_SCR_OPT-NEXT:    s_mov_b32 s4, 0
 ; FLAT_SCR_OPT-NEXT:    scratch_store_dword off, v72, s4
 ; FLAT_SCR_OPT-NEXT:    s_waitcnt lgkmcnt(0)
 ; FLAT_SCR_OPT-NEXT:    v_writelane_b32 v72, s2, 0
 ; FLAT_SCR_OPT-NEXT:    s_mov_b32 s4, 4
 ; FLAT_SCR_OPT-NEXT:    v_writelane_b32 v72, s3, 1

 ; FLAT_SCR_OPT-NEXT:    s_waitcnt_depctr 0xffe3
 ; FLAT_SCR_OPT-NEXT:    s_mov_b32 exec_lo, s2
 ; FLAT_SCR_OPT-NEXT:    v_mov_b32_e32 v1, 0
 ; FLAT_SCR_OPT-NEXT:    global_store_dword v1, v0, s[0:1]
 ; FLAT_SCR_OPT-NEXT:    s_endpgm
 ;
 ; FLAT_SCR_ARCH-LABEL: test:
 ; FLAT_SCR_ARCH:       ; %bb.0:
-; FLAT_SCR_ARCH-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0
+; FLAT_SCR_ARCH-NEXT:    s_load_dwordx2 s[2:3], s[0:1], null
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b32 s104, exec_lo
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b32 exec_lo, 3
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b32 s4, 0
 ; FLAT_SCR_ARCH-NEXT:    scratch_store_dword off, v72, s4
 ; FLAT_SCR_ARCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; FLAT_SCR_ARCH-NEXT:    v_writelane_b32 v72, s2, 0
 ; FLAT_SCR_ARCH-NEXT:    s_mov_b32 s4, 4
 ; FLAT_SCR_ARCH-NEXT:    v_writelane_b32 v72, s3, 1

llvm/test/CodeGen/AMDGPU/flat-scratch.ll

 ; GFX940-NEXT:    scratch_store_dwordx4 off, v[0:3], off offset:20
 ; GFX940-NEXT:    scratch_store_dwordx4 off, v[0:3], off offset:4
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX1010-PAL-LABEL: zero_init_kernel:
 ; GFX1010-PAL:       ; %bb.0:
 ; GFX1010-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1010-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1010-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1010-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1010-PAL-NEXT:    s_mov_b32 s0, 0
 ; GFX1010-PAL-NEXT:    s_mov_b32 vcc_lo, 0

 ; GFX1010-PAL-NEXT:    scratch_store_dwordx4 off, v[0:3], s0 offset:20
 ; GFX1010-PAL-NEXT:    scratch_store_dwordx4 off, v[0:3], vcc_lo offset:4
 ; GFX1010-PAL-NEXT:    s_endpgm
 ;
 ; GFX1030-PAL-LABEL: zero_init_kernel:
 ; GFX1030-PAL:       ; %bb.0:
 ; GFX1030-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1030-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1030-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1030-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1030-PAL-NEXT:    s_mov_b32 s0, 0
 ; GFX1030-PAL-NEXT:    s_mov_b32 s1, s0

 ; GFX940-NEXT:    scratch_load_dword v0, off, s0 sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX10-PAL-LABEL: store_load_sindex_kernel:
 ; GFX10-PAL:       ; %bb.0: ; %bb
 ; GFX10-PAL-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-PAL-NEXT:    s_mov_b32 s4, s0
-; GFX10-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PAL-NEXT:    s_and_b32 s5, s5, 0xffff
 ; GFX10-PAL-NEXT:    s_add_u32 s4, s4, s3
 ; GFX10-PAL-NEXT:    s_addc_u32 s5, s5, 0
 ; GFX10-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s4
 ; GFX10-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s5
-; GFX10-PAL-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-PAL-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-PAL-NEXT:    v_mov_b32_e32 v0, 15
 ; GFX10-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PAL-NEXT:    s_and_b32 s1, s0, 15
 ; GFX10-PAL-NEXT:    s_lshl_b32 s0, s0, 2
 ; GFX10-PAL-NEXT:    s_lshl_b32 s1, s1, 2
 ; GFX10-PAL-NEXT:    s_add_i32 s0, s0, 4
 ; GFX10-PAL-NEXT:    s_add_i32 s1, s1, 4
 ; GFX10-PAL-NEXT:    scratch_store_dword off, v0, s0

 ; GFX940-NEXT:    scratch_load_dword v0, off, s0 sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX10-PAL-LABEL: store_load_sindex_foo:
 ; GFX10-PAL:       ; %bb.0: ; %bb
 ; GFX10-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX10-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX10-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX10-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX10-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX10-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX10-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX10-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX10-PAL-NEXT:    v_mov_b32_e32 v0, 15
 ; GFX10-PAL-NEXT:    s_and_b32 s1, s0, 15

 ; GFX940-NEXT:    scratch_load_dword v0, v0, off sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX10-PAL-LABEL: store_load_vindex_kernel:
 ; GFX10-PAL:       ; %bb.0: ; %bb
 ; GFX10-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX10-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX10-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX10-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX10-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX10-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX10-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX10-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX10-PAL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-PAL-NEXT:    v_mov_b32_e32 v2, 15

 ; GFX940-NEXT:    scratch_store_dwordx4 off, v[0:3], off offset:292
 ; GFX940-NEXT:    scratch_store_dwordx4 off, v[0:3], off offset:308
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX1010-PAL-LABEL: zero_init_small_offset_kernel:
 ; GFX1010-PAL:       ; %bb.0:
 ; GFX1010-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1010-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1010-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1010-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1010-PAL-NEXT:    s_mov_b32 s4, 0
 ; GFX1010-PAL-NEXT:    s_mov_b32 s0, 0

 ; GFX1010-PAL-NEXT:    scratch_store_dwordx4 off, v[0:3], s0 offset:292
 ; GFX1010-PAL-NEXT:    scratch_store_dwordx4 off, v[0:3], vcc_lo offset:308
 ; GFX1010-PAL-NEXT:    s_endpgm
 ;
 ; GFX1030-PAL-LABEL: zero_init_small_offset_kernel:
 ; GFX1030-PAL:       ; %bb.0:
 ; GFX1030-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1030-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1030-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1030-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1030-PAL-NEXT:    scratch_load_dword v0, off, off offset:4 glc dlc
 ; GFX1030-PAL-NEXT:    s_waitcnt vmcnt(0)

 ; GFX940-NEXT:    scratch_load_dword v0, off, s0 sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX1010-PAL-LABEL: store_load_sindex_small_offset_kernel:
 ; GFX1010-PAL:       ; %bb.0: ; %bb
 ; GFX1010-PAL-NEXT:    s_getpc_b64 s[4:5]
 ; GFX1010-PAL-NEXT:    s_mov_b32 s4, s0
-; GFX1010-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX1010-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s5, s5, 0xffff
 ; GFX1010-PAL-NEXT:    s_add_u32 s4, s4, s3
 ; GFX1010-PAL-NEXT:    s_addc_u32 s5, s5, 0
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s4
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s5
-; GFX1010-PAL-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX1010-PAL-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX1010-PAL-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX1010-PAL-NEXT:    scratch_load_dword v0, off, vcc_lo offset:4 glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    v_mov_b32_e32 v0, 15
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s1, s0, 15
 ; GFX1010-PAL-NEXT:    s_lshl_b32 s0, s0, 2
 ; GFX1010-PAL-NEXT:    s_lshl_b32 s1, s1, 2
 ; GFX1010-PAL-NEXT:    s_addk_i32 s0, 0x104
 ; GFX1010-PAL-NEXT:    s_addk_i32 s1, 0x104
 ; GFX1010-PAL-NEXT:    scratch_store_dword off, v0, s0
 ; GFX1010-PAL-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX1010-PAL-NEXT:    scratch_load_dword v0, off, s1 glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    s_endpgm
 ;
 ; GFX1030-PAL-LABEL: store_load_sindex_small_offset_kernel:
 ; GFX1030-PAL:       ; %bb.0: ; %bb
 ; GFX1030-PAL-NEXT:    s_getpc_b64 s[4:5]
 ; GFX1030-PAL-NEXT:    s_mov_b32 s4, s0
-; GFX1030-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX1030-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s5, s5, 0xffff
 ; GFX1030-PAL-NEXT:    s_add_u32 s4, s4, s3
 ; GFX1030-PAL-NEXT:    s_addc_u32 s5, s5, 0
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s4
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s5
-; GFX1030-PAL-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX1030-PAL-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX1030-PAL-NEXT:    scratch_load_dword v0, off, off offset:4 glc dlc
 ; GFX1030-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-PAL-NEXT:    v_mov_b32_e32 v0, 15
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s1, s0, 15
 ; GFX1030-PAL-NEXT:    s_lshl_b32 s0, s0, 2
 ; GFX1030-PAL-NEXT:    s_lshl_b32 s1, s1, 2
 ; GFX1030-PAL-NEXT:    s_addk_i32 s0, 0x104

 ; GFX940-NEXT:    scratch_load_dword v0, off, s0 sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX1010-PAL-LABEL: store_load_sindex_small_offset_foo:
 ; GFX1010-PAL:       ; %bb.0: ; %bb
 ; GFX1010-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1010-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1010-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1010-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1010-PAL-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX1010-PAL-NEXT:    s_and_b32 s1, s0, 15

 ; GFX1010-PAL-NEXT:    scratch_load_dword v0, off, s1 glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    s_endpgm
 ;
 ; GFX1030-PAL-LABEL: store_load_sindex_small_offset_foo:
 ; GFX1030-PAL:       ; %bb.0: ; %bb
 ; GFX1030-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1030-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1030-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1030-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1030-PAL-NEXT:    scratch_load_dword v0, off, off offset:4 glc dlc
 ; GFX1030-PAL-NEXT:    s_waitcnt vmcnt(0)

 ; GFX940-NEXT:    scratch_load_dword v0, v0, off sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX1010-PAL-LABEL: store_load_vindex_small_offset_kernel:
 ; GFX1010-PAL:       ; %bb.0: ; %bb
 ; GFX1010-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1010-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1010-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1010-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1010-PAL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX1010-PAL-NEXT:    v_mov_b32_e32 v2, 15
 ; GFX1010-PAL-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX1010-PAL-NEXT:    scratch_load_dword v3, off, vcc_lo offset:4 glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    v_sub_nc_u32_e32 v1, 0x104, v0
 ; GFX1010-PAL-NEXT:    v_add_nc_u32_e32 v0, 0x104, v0
 ; GFX1010-PAL-NEXT:    v_add_nc_u32_e32 v1, 0x7c, v1
 ; GFX1010-PAL-NEXT:    scratch_store_dword v0, v2, off
 ; GFX1010-PAL-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX1010-PAL-NEXT:    scratch_load_dword v0, v1, off glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    s_endpgm
 ;
 ; GFX1030-PAL-LABEL: store_load_vindex_small_offset_kernel:
 ; GFX1030-PAL:       ; %bb.0: ; %bb
 ; GFX1030-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1030-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1030-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1030-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1030-PAL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX1030-PAL-NEXT:    v_mov_b32_e32 v2, 15

 ; GFX940-NEXT:    scratch_store_dwordx4 off, v[0:3], vcc_lo offset:32
 ; GFX940-NEXT:    scratch_store_dwordx4 off, v[0:3], vcc_hi offset:48
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX1010-PAL-LABEL: zero_init_large_offset_kernel:
 ; GFX1010-PAL:       ; %bb.0:
 ; GFX1010-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1010-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1010-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1010-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1010-PAL-NEXT:    s_mov_b32 s4, 0
 ; GFX1010-PAL-NEXT:    s_mov_b32 s0, 0

 ; GFX1010-PAL-NEXT:    scratch_store_dwordx4 off, v[0:3], s0 offset:32
 ; GFX1010-PAL-NEXT:    scratch_store_dwordx4 off, v[0:3], vcc_lo offset:48
 ; GFX1010-PAL-NEXT:    s_endpgm
 ;
 ; GFX1030-PAL-LABEL: zero_init_large_offset_kernel:
 ; GFX1030-PAL:       ; %bb.0:
 ; GFX1030-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1030-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1030-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1030-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1030-PAL-NEXT:    scratch_load_dword v0, off, off offset:4 glc dlc
 ; GFX1030-PAL-NEXT:    s_waitcnt vmcnt(0)

 ; GFX940-NEXT:    scratch_load_dword v0, off, s0 sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX1010-PAL-LABEL: store_load_sindex_large_offset_kernel:
 ; GFX1010-PAL:       ; %bb.0: ; %bb
 ; GFX1010-PAL-NEXT:    s_getpc_b64 s[4:5]
 ; GFX1010-PAL-NEXT:    s_mov_b32 s4, s0
-; GFX1010-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX1010-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s5, s5, 0xffff
 ; GFX1010-PAL-NEXT:    s_add_u32 s4, s4, s3
 ; GFX1010-PAL-NEXT:    s_addc_u32 s5, s5, 0
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s4
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s5
-; GFX1010-PAL-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX1010-PAL-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX1010-PAL-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX1010-PAL-NEXT:    scratch_load_dword v0, off, vcc_lo offset:4 glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    v_mov_b32_e32 v0, 15
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s1, s0, 15
 ; GFX1010-PAL-NEXT:    s_lshl_b32 s0, s0, 2
 ; GFX1010-PAL-NEXT:    s_lshl_b32 s1, s1, 2
 ; GFX1010-PAL-NEXT:    s_addk_i32 s0, 0x4004
 ; GFX1010-PAL-NEXT:    s_addk_i32 s1, 0x4004
 ; GFX1010-PAL-NEXT:    scratch_store_dword off, v0, s0
 ; GFX1010-PAL-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX1010-PAL-NEXT:    scratch_load_dword v0, off, s1 glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    s_endpgm
 ;
 ; GFX1030-PAL-LABEL: store_load_sindex_large_offset_kernel:
 ; GFX1030-PAL:       ; %bb.0: ; %bb
 ; GFX1030-PAL-NEXT:    s_getpc_b64 s[4:5]
 ; GFX1030-PAL-NEXT:    s_mov_b32 s4, s0
-; GFX1030-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX1030-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s5, s5, 0xffff
 ; GFX1030-PAL-NEXT:    s_add_u32 s4, s4, s3
 ; GFX1030-PAL-NEXT:    s_addc_u32 s5, s5, 0
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s4
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s5
-; GFX1030-PAL-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX1030-PAL-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX1030-PAL-NEXT:    scratch_load_dword v0, off, off offset:4 glc dlc
 ; GFX1030-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-PAL-NEXT:    v_mov_b32_e32 v0, 15
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s1, s0, 15
 ; GFX1030-PAL-NEXT:    s_lshl_b32 s0, s0, 2
 ; GFX1030-PAL-NEXT:    s_lshl_b32 s1, s1, 2
 ; GFX1030-PAL-NEXT:    s_addk_i32 s0, 0x4004

 ; GFX940-NEXT:    scratch_load_dword v0, off, s0 sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX1010-PAL-LABEL: store_load_sindex_large_offset_foo:
 ; GFX1010-PAL:       ; %bb.0: ; %bb
 ; GFX1010-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1010-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1010-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1010-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1010-PAL-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX1010-PAL-NEXT:    s_and_b32 s1, s0, 15

 ; GFX1010-PAL-NEXT:    scratch_load_dword v0, off, s1 glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    s_endpgm
 ;
 ; GFX1030-PAL-LABEL: store_load_sindex_large_offset_foo:
 ; GFX1030-PAL:       ; %bb.0: ; %bb
 ; GFX1030-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1030-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1030-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1030-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1030-PAL-NEXT:    scratch_load_dword v0, off, off offset:4 glc dlc
 ; GFX1030-PAL-NEXT:    s_waitcnt vmcnt(0)

 ; GFX940-NEXT:    scratch_load_dword v0, v0, off sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX1010-PAL-LABEL: store_load_vindex_large_offset_kernel:
 ; GFX1010-PAL:       ; %bb.0: ; %bb
 ; GFX1010-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1010-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1010-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1010-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1010-PAL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX1010-PAL-NEXT:    v_mov_b32_e32 v2, 15
 ; GFX1010-PAL-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX1010-PAL-NEXT:    scratch_load_dword v3, off, vcc_lo offset:4 glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    v_sub_nc_u32_e32 v1, 0x4004, v0
 ; GFX1010-PAL-NEXT:    v_add_nc_u32_e32 v0, 0x4004, v0
 ; GFX1010-PAL-NEXT:    v_add_nc_u32_e32 v1, 0x7c, v1
 ; GFX1010-PAL-NEXT:    scratch_store_dword v0, v2, off
 ; GFX1010-PAL-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX1010-PAL-NEXT:    scratch_load_dword v0, v1, off glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    s_endpgm
 ;
 ; GFX1030-PAL-LABEL: store_load_vindex_large_offset_kernel:
 ; GFX1030-PAL:       ; %bb.0: ; %bb
 ; GFX1030-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1030-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1030-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1030-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1030-PAL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX1030-PAL-NEXT:    v_mov_b32_e32 v2, 15

 ; GFX940-NEXT:    scratch_load_dword v0, off, s0 offset:3712 sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX1010-PAL-LABEL: store_load_large_imm_offset_kernel:
 ; GFX1010-PAL:       ; %bb.0: ; %bb
 ; GFX1010-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1010-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1010-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1010-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1010-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1010-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1010-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1010-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1010-PAL-NEXT:    v_mov_b32_e32 v0, 13
 ; GFX1010-PAL-NEXT:    v_mov_b32_e32 v1, 15
 ; GFX1010-PAL-NEXT:    s_movk_i32 s0, 0x3800
 ; GFX1010-PAL-NEXT:    s_mov_b32 vcc_lo, 0
 ; GFX1010-PAL-NEXT:    s_add_i32 s0, s0, 4
 ; GFX1010-PAL-NEXT:    scratch_store_dword off, v0, vcc_lo offset:4
 ; GFX1010-PAL-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX1010-PAL-NEXT:    scratch_store_dword off, v1, s0 offset:1664
 ; GFX1010-PAL-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX1010-PAL-NEXT:    scratch_load_dword v0, off, s0 offset:1664 glc dlc
 ; GFX1010-PAL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1010-PAL-NEXT:    s_endpgm
 ;
 ; GFX1030-PAL-LABEL: store_load_large_imm_offset_kernel:
 ; GFX1030-PAL:       ; %bb.0: ; %bb
 ; GFX1030-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX1030-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1030-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1030-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX1030-PAL-NEXT:    s_add_u32 s2, s2, s1
 ; GFX1030-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX1030-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX1030-PAL-NEXT:    v_mov_b32_e32 v0, 13
 ; GFX1030-PAL-NEXT:    v_mov_b32_e32 v1, 15

 ; GFX940-NEXT:    scratch_load_dword v0, v0, off sc0 sc1
 ; GFX940-NEXT:    s_waitcnt vmcnt(0)
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX10-PAL-LABEL: store_load_vidx_sidx_offset:
 ; GFX10-PAL:       ; %bb.0: ; %bb
 ; GFX10-PAL-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-PAL-NEXT:    s_mov_b32 s4, s0
-; GFX10-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-PAL-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PAL-NEXT:    s_and_b32 s5, s5, 0xffff
 ; GFX10-PAL-NEXT:    s_add_u32 s4, s4, s3
 ; GFX10-PAL-NEXT:    s_addc_u32 s5, s5, 0
 ; GFX10-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s4
 ; GFX10-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s5
-; GFX10-PAL-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-PAL-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-PAL-NEXT:    v_mov_b32_e32 v1, 4
 ; GFX10-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PAL-NEXT:    v_add_lshl_u32 v0, s0, v0, 2
 ; GFX10-PAL-NEXT:    v_add3_u32 v0, v1, v0, 0x400
 ; GFX10-PAL-NEXT:    v_mov_b32_e32 v1, 15
 ; GFX10-PAL-NEXT:    scratch_store_dword v0, v1, off
 ; GFX10-PAL-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-PAL-NEXT:    scratch_load_dword v0, v0, off glc dlc

 ; GFX940-NEXT:    ; use v0
 ; GFX940-NEXT:    ;;#ASMEND
 ; GFX940-NEXT:    s_endpgm
 ;
 ; GFX10-PAL-LABEL: large_offset:
 ; GFX10-PAL:       ; %bb.0: ; %bb
 ; GFX10-PAL-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-PAL-NEXT:    s_mov_b32 s2, s0
-; GFX10-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX10-PAL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX10-PAL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PAL-NEXT:    s_and_b32 s3, s3, 0xffff
 ; GFX10-PAL-NEXT:    s_add_u32 s2, s2, s0
 ; GFX10-PAL-NEXT:    s_addc_u32 s3, s3, 0
 ; GFX10-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX10-PAL-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 ; GFX10-PAL-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-PAL-NEXT:    s_movk_i32 s0, 0x810

llvm/test/CodeGen/AMDGPU/gfx-callable-argument-types.ll

 ; GFX10-NEXT:    s_mov_b32 s34, s33
 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_mov_b32_e32 v8, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    global_load_dwordx4 v[0:3], v8, s[34:35]
 ; GFX10-NEXT:    global_load_dwordx4 v[4:7], v8, s[34:35] offset:16
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 1

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s0, s33
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    v_mov_b32_e32 v8, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-SCRATCH-NEXT:    s_clause 0x1
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[0:3], v8, s[0:1]
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[4:7], v8, s[0:1] offset:16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 1

 ; GFX10-NEXT:    s_mov_b32 s34, s33
 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_mov_b32_e32 v16, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_clause 0x3
 ; GFX10-NEXT:    global_load_dwordx4 v[0:3], v16, s[34:35]
 ; GFX10-NEXT:    global_load_dwordx4 v[4:7], v16, s[34:35] offset:16
 ; GFX10-NEXT:    global_load_dwordx4 v[8:11], v16, s[34:35] offset:32

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s0, s33
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    v_mov_b32_e32 v16, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-SCRATCH-NEXT:    s_clause 0x3
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[0:3], v16, s[0:1]
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[4:7], v16, s[0:1] offset:16
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[8:11], v16, s[0:1] offset:32

 ; GFX10-NEXT:    s_mov_b32 s34, s33
 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_mov_b32_e32 v32, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_clause 0x7
 ; GFX10-NEXT:    global_load_dwordx4 v[0:3], v32, s[34:35]
 ; GFX10-NEXT:    global_load_dwordx4 v[4:7], v32, s[34:35] offset:16
 ; GFX10-NEXT:    global_load_dwordx4 v[8:11], v32, s[34:35] offset:32

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s0, s33
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    v_mov_b32_e32 v32, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-SCRATCH-NEXT:    s_clause 0x7
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[0:3], v32, s[0:1]
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[4:7], v32, s[0:1] offset:16
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[8:11], v32, s[0:1] offset:32

 ; GFX10-NEXT:    s_mov_b32 s34, s33
 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_mov_b32_e32 v32, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    global_load_dword v33, v[0:1], off
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_clause 0x7
 ; GFX10-NEXT:    global_load_dwordx4 v[0:3], v32, s[34:35]
 ; GFX10-NEXT:    global_load_dwordx4 v[4:7], v32, s[34:35] offset:16

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s0, s33
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    v_mov_b32_e32 v32, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    global_load_dword v33, v[0:1], off
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-SCRATCH-NEXT:    s_clause 0x7
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[0:3], v32, s[0:1]
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[4:7], v32, s[0:1] offset:16

 ; GFX10-NEXT:    s_mov_b32 s34, s33
 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    global_load_ubyte v0, v2, s[34:35]
 ; GFX10-NEXT:    global_load_dword v1, v2, s[34:35] offset:4
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 1

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s0, s33
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-SCRATCH-NEXT:    s_clause 0x1
 ; GFX10-SCRATCH-NEXT:    global_load_ubyte v0, v2, s[0:1]
 ; GFX10-SCRATCH-NEXT:    global_load_dword v1, v2, s[0:1] offset:4
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 1

 ; GFX10-NEXT:    s_mov_b32 s34, s33
 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_load_dwordx4 v[0:3], v0, s[34:35]
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s0, s33
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 1
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-SCRATCH-NEXT:    global_load_dwordx4 v[0:3], v0, s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]

 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
 ; GFX10-NEXT:    s_mov_b64 s[34:35], 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s7, 3
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v2i64_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v2i64_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 4
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 5
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v40, 5
 ; GFX10-NEXT:    v_readlane_b32 s30, v40, 4

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
 ; GFX10-SCRATCH-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s7, 3
-; GFX10-SCRATCH-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx4 s[4:7], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v2i64_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v2i64_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 4
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 5
 ; GFX10-SCRATCH-NEXT:    s_swappc_b64 s[30:31], s[0:1]
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s31, v40, 5
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s30, v40, 4

 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
 ; GFX10-NEXT:    s_mov_b64 s[34:35], 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s7, 3
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v3i64_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v3i64_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-NEXT:    s_mov_b32 s8, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-NEXT:    s_mov_b32 s9, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 6

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
 ; GFX10-SCRATCH-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s7, 3
-; GFX10-SCRATCH-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx4 s[4:7], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v3i64_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v3i64_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s8, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s9, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 6

 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
 ; GFX10-NEXT:    s_mov_b64 s[34:35], 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s7, 3
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v4i64_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v4i64_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-NEXT:    s_mov_b32 s8, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-NEXT:    s_mov_b32 s9, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s10, 6

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
 ; GFX10-SCRATCH-NEXT:    s_mov_b64 s[0:1], 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s7, 3
-; GFX10-SCRATCH-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx4 s[4:7], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v4i64_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v4i64_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s8, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s9, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s10, 6

 ; GFX10-NEXT:    s_mov_b32 s34, s33
 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
-; GFX10-NEXT:    s_load_dword s4, s[34:35], 0x0
+; GFX10-NEXT:    s_load_dword s4, s[34:35], null
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v2i16_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v2i16_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 2
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s0, s33
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
-; GFX10-SCRATCH-NEXT:    s_load_dword s4, s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dword s4, s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v2i16_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v2i16_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 2
 ; GFX10-SCRATCH-NEXT:    s_swappc_b64 s[30:31], s[0:1]

 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v3i16_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v3i16_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 3
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v40, 3
 ; GFX10-NEXT:    v_readlane_b32 s30, v40, 2

 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[4:5], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[4:5], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v3i16_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v3i16_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 3
 ; GFX10-SCRATCH-NEXT:    s_swappc_b64 s[30:31], s[0:1]
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s31, v40, 3
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s30, v40, 2

 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v3f16_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v3f16_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 3
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v40, 3
 ; GFX10-NEXT:    v_readlane_b32 s30, v40, 2

 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[4:5], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[4:5], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v3f16_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v3f16_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 3
 ; GFX10-SCRATCH-NEXT:    s_swappc_b64 s[30:31], s[0:1]
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s31, v40, 3
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s30, v40, 2

 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v4i16_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v4i16_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 3
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v40, 3
 ; GFX10-NEXT:    v_readlane_b32 s30, v40, 2

 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[4:5], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[4:5], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v4i16_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v4i16_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 3
 ; GFX10-SCRATCH-NEXT:    s_swappc_b64 s[30:31], s[0:1]
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s31, v40, 3
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s30, v40, 2

 ; GFX10-NEXT:    s_mov_b32 s34, s33
 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
-; GFX10-NEXT:    s_load_dword s4, s[34:35], 0x0
+; GFX10-NEXT:    s_load_dword s4, s[34:35], null
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v2f16_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v2f16_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 2
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s0, s33
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
-; GFX10-SCRATCH-NEXT:    s_load_dword s4, s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dword s4, s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v2f16_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v2f16_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 2
 ; GFX10-SCRATCH-NEXT:    s_swappc_b64 s[30:31], s[0:1]

 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v2i32_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v2i32_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 3
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v40, 3
 ; GFX10-NEXT:    v_readlane_b32 s30, v40, 2

 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[4:5], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[4:5], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v2i32_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v2i32_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 3
 ; GFX10-SCRATCH-NEXT:    s_swappc_b64 s[30:31], s[0:1]
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s31, v40, 3
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s30, v40, 2

 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s7, 3
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v4i32_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v4i32_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 4
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 5
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v40, 5
 ; GFX10-NEXT:    v_readlane_b32 s30, v40, 4

 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s7, 3
-; GFX10-SCRATCH-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx4 s[4:7], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v4i32_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v4i32_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 4
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 5
 ; GFX10-SCRATCH-NEXT:    s_swappc_b64 s[30:31], s[0:1]
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s31, v40, 5
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s30, v40, 4

 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s7, 3
 ; GFX10-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-NEXT:    v_writelane_b32 v40, s10, 6
 ; GFX10-NEXT:    v_writelane_b32 v40, s11, 7
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dwordx8 s[4:11], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx8 s[4:11], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v8i32_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v8i32_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 8
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 9
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v40, 9
 ; GFX10-NEXT:    v_readlane_b32 s30, v40, 8

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s7, 3
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s10, 6
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s11, 7
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-SCRATCH-NEXT:    s_load_dwordx8 s[4:11], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx8 s[4:11], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v8i32_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v8i32_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 8
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 9
 ; GFX10-SCRATCH-NEXT:    s_swappc_b64 s[30:31], s[0:1]
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s31, v40, 9
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s30, v40, 8

 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s7, 3
 ; GFX10-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-NEXT:    v_writelane_b32 v40, s10, 6
 ; GFX10-NEXT:    v_writelane_b32 v40, s11, 7
 ; GFX10-NEXT:    v_writelane_b32 v40, s12, 8
 ; GFX10-NEXT:    v_writelane_b32 v40, s13, 9
 ; GFX10-NEXT:    v_writelane_b32 v40, s14, 10
 ; GFX10-NEXT:    v_writelane_b32 v40, s15, 11
 ; GFX10-NEXT:    v_writelane_b32 v40, s16, 12
 ; GFX10-NEXT:    v_writelane_b32 v40, s17, 13
 ; GFX10-NEXT:    v_writelane_b32 v40, s18, 14
 ; GFX10-NEXT:    v_writelane_b32 v40, s19, 15
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dwordx16 s[4:19], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx16 s[4:19], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v16i32_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v16i32_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 16
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 17
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v40, 17
 ; GFX10-NEXT:    v_readlane_b32 s30, v40, 16

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s7, 3
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s10, 6
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s11, 7
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s12, 8
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s13, 9
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s14, 10
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s15, 11
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s16, 12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s17, 13
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s18, 14
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s19, 15
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-SCRATCH-NEXT:    s_load_dwordx16 s[4:19], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx16 s[4:19], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v16i32_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v16i32_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s30, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s31, 17
 ; GFX10-SCRATCH-NEXT:    s_swappc_b64 s[30:31], s[0:1]
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s31, v40, 17
 ; GFX10-SCRATCH-NEXT:    v_readlane_b32 s30, v40, 16

 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s7, 3
 ; GFX10-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-NEXT:    v_writelane_b32 v40, s10, 6
 ; GFX10-NEXT:    v_writelane_b32 v40, s11, 7
 ; GFX10-NEXT:    v_writelane_b32 v40, s12, 8
 ; GFX10-NEXT:    v_writelane_b32 v40, s13, 9
 ; GFX10-NEXT:    v_writelane_b32 v40, s14, 10
 ; GFX10-NEXT:    v_writelane_b32 v40, s15, 11
 ; GFX10-NEXT:    v_writelane_b32 v40, s16, 12
 ; GFX10-NEXT:    v_writelane_b32 v40, s17, 13
 ; GFX10-NEXT:    v_writelane_b32 v40, s18, 14
 ; GFX10-NEXT:    v_writelane_b32 v40, s19, 15
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx16 s[36:51], s[34:35], 0x40
-; GFX10-NEXT:    s_load_dwordx16 s[4:19], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx16 s[4:19], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v32i32_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v32i32_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s20, 16
 ; GFX10-NEXT:    v_writelane_b32 v40, s21, 17
 ; GFX10-NEXT:    v_writelane_b32 v40, s22, 18
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s46

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s2, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s7, 3
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s10, 6
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s11, 7
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s12, 8
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s13, 9
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s14, 10
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s15, 11
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s16, 12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s17, 13
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s18, 14
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s19, 15
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-SCRATCH-NEXT:    s_clause 0x1
 ; GFX10-SCRATCH-NEXT:    s_load_dwordx16 s[36:51], s[0:1], 0x40
-; GFX10-SCRATCH-NEXT:    s_load_dwordx16 s[4:19], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx16 s[4:19], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v32i32_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v32i32_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s20, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s21, 17
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s22, 18
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-SCRATCH-NEXT:    v_mov_b32_e32 v4, s50

 ; GFX10-NEXT:    s_mov_b32 s33, s32
 ; GFX10-NEXT:    s_or_saveexec_b32 s35, -1
 ; GFX10-NEXT:    buffer_store_dword v40, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    buffer_store_dword v41, off, s[0:3], s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s35
 ; GFX10-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-NEXT:    v_writelane_b32 v41, s34, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-NEXT:    v_writelane_b32 v40, s7, 3
 ; GFX10-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-NEXT:    v_writelane_b32 v40, s10, 6
 ; GFX10-NEXT:    v_writelane_b32 v40, s11, 7
 ; GFX10-NEXT:    v_writelane_b32 v40, s12, 8
 ; GFX10-NEXT:    v_writelane_b32 v40, s13, 9
 ; GFX10-NEXT:    v_writelane_b32 v40, s14, 10
 ; GFX10-NEXT:    v_writelane_b32 v40, s15, 11
 ; GFX10-NEXT:    v_writelane_b32 v40, s16, 12
 ; GFX10-NEXT:    v_writelane_b32 v40, s17, 13
 ; GFX10-NEXT:    v_writelane_b32 v40, s18, 14
 ; GFX10-NEXT:    v_writelane_b32 v40, s19, 15
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_clause 0x2
-; GFX10-NEXT:    s_load_dword s52, s[34:35], 0x0
+; GFX10-NEXT:    s_load_dword s52, s[34:35], null
 ; GFX10-NEXT:    ; meta instruction
 ; GFX10-NEXT:    ; meta instruction
 ; GFX10-NEXT:    s_load_dwordx16 s[36:51], s[34:35], 0x40
-; GFX10-NEXT:    s_load_dwordx16 s[4:19], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx16 s[4:19], s[34:35], null
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, external_void_func_v32i32_i32_inreg@rel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, external_void_func_v32i32_i32_inreg@rel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s20, 16
 ; GFX10-NEXT:    v_writelane_b32 v40, s21, 17
 ; GFX10-NEXT:    v_writelane_b32 v40, s22, 18
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s52

 ; GFX10-SCRATCH-NEXT:    s_mov_b32 s33, s32
 ; GFX10-SCRATCH-NEXT:    s_or_saveexec_b32 s1, -1
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v40, s33 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    scratch_store_dword off, v41, s33 offset:4 ; 4-byte Folded Spill
 ; GFX10-SCRATCH-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-SCRATCH-NEXT:    s_mov_b32 exec_lo, s1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s4, 0
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v41, s0, 0
-; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s32, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s5, 1
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s6, 2
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s7, 3
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s8, 4
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s9, 5
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s10, 6
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s11, 7
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s12, 8
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s13, 9
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s14, 10
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s15, 11
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s16, 12
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s17, 13
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s18, 14
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s19, 15
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-SCRATCH-NEXT:    s_clause 0x2
-; GFX10-SCRATCH-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-SCRATCH-NEXT:    ; meta instruction
 ; GFX10-SCRATCH-NEXT:    ; meta instruction
 ; GFX10-SCRATCH-NEXT:    s_load_dwordx16 s[36:51], s[0:1], 0x40
-; GFX10-SCRATCH-NEXT:    s_load_dwordx16 s[4:19], s[0:1], 0x0
+; GFX10-SCRATCH-NEXT:    s_load_dwordx16 s[4:19], s[0:1], null
 ; GFX10-SCRATCH-NEXT:    s_getpc_b64 s[0:1]
 ; GFX10-SCRATCH-NEXT:    s_add_u32 s0, s0, external_void_func_v32i32_i32_inreg@rel32@lo+4
 ; GFX10-SCRATCH-NEXT:    s_addc_u32 s1, s1, external_void_func_v32i32_i32_inreg@rel32@hi+12
 ; GFX10-SCRATCH-NEXT:    s_add_i32 s3, s32, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s20, 16
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s21, 17
 ; GFX10-SCRATCH-NEXT:    v_writelane_b32 v40, s22, 18
 ; GFX10-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)

llvm/test/CodeGen/AMDGPU/gfx-callable-return-types.ll

 ; GFX10-NEXT:    buffer_store_dword v1, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s34
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, return_i1@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, return_i1@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v1, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_writelane_b32 v1, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v1, 1
 ; GFX10-NEXT:    v_readlane_b32 s30, v1, 0
 ; GFX10-NEXT:    s_xor_saveexec_b32 s34, -1
 ; GFX10-NEXT:    buffer_load_dword v1, off, s[0:3], s33 ; 4-byte Folded Reload
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3

 ; GFX10-NEXT:    buffer_store_dword v1, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s34
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, return_i16@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, return_i16@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v1, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_writelane_b32 v1, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v1, 1
 ; GFX10-NEXT:    v_readlane_b32 s30, v1, 0
 ; GFX10-NEXT:    s_xor_saveexec_b32 s34, -1
 ; GFX10-NEXT:    buffer_load_dword v1, off, s[0:3], s33 ; 4-byte Folded Reload
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3

 ; GFX10-NEXT:    buffer_store_dword v1, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s34
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, return_2xi16@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, return_2xi16@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v1, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_writelane_b32 v1, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v1, 1
 ; GFX10-NEXT:    v_readlane_b32 s30, v1, 0
 ; GFX10-NEXT:    s_xor_saveexec_b32 s34, -1
 ; GFX10-NEXT:    buffer_load_dword v1, off, s[0:3], s33 ; 4-byte Folded Reload
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3

 ; GFX10-NEXT:    buffer_store_dword v2, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s34
 ; GFX10-NEXT:    s_addk_i32 s32, 0x200
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, return_3xi16@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, return_3xi16@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v2, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_writelane_b32 v2, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v2, 1
 ; GFX10-NEXT:    v_readlane_b32 s30, v2, 0
 ; GFX10-NEXT:    s_xor_saveexec_b32 s34, -1
 ; GFX10-NEXT:    buffer_load_dword v2, off, s[0:3], s33 ; 4-byte Folded Reload
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3

 ; GFX10-NEXT:    buffer_store_dword v2, off, s[0:3], s33 offset:2048 ; 4-byte Folded Spill
 ; GFX10-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX10-NEXT:    s_mov_b32 exec_lo, s34
 ; GFX10-NEXT:    s_add_i32 s32, s32, 0x30000
 ; GFX10-NEXT:    s_getpc_b64 s[34:35]
 ; GFX10-NEXT:    s_add_u32 s34, s34, return_512xi32@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s35, s35, return_512xi32@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v2, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[34:35], null
 ; GFX10-NEXT:    v_lshrrev_b32_e64 v0, 5, s33
 ; GFX10-NEXT:    v_writelane_b32 v2, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[34:35]
 ; GFX10-NEXT:    v_readlane_b32 s31, v2, 1
 ; GFX10-NEXT:    v_readlane_b32 s30, v2, 0
 ; GFX10-NEXT:    s_xor_saveexec_b32 s34, -1
 ; GFX10-NEXT:    buffer_load_dword v2, off, s[0:3], s33 offset:2048 ; 4-byte Folded Reload

llvm/test/CodeGen/AMDGPU/global-atomics-fp.ll

 ; GFX90A-NEXT:    global_store_dword v[0:1], v1, off
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_fadd_ret_f32:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_mov_b32 s2, 0
 ; GFX10-NEXT:  .LBB0_1: ; %atomicrmw.start
 ; GFX10-NEXT:    ; =>This Inner Loop Header: Depth=1
 ; GFX10-NEXT:    v_mov_b32_e32 v2, v1
 ; GFX10-NEXT:    v_add_f32_e32 v1, 4.0, v2
 ; GFX10-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX90A-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_fadd_ret_f32_ieee:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_mov_b32 s2, 0
 ; GFX10-NEXT:  .LBB1_1: ; %atomicrmw.start
 ; GFX10-NEXT:    ; =>This Inner Loop Header: Depth=1
 ; GFX10-NEXT:    v_mov_b32_e32 v2, v1
 ; GFX10-NEXT:    v_add_f32_e32 v1, 4.0, v2
 ; GFX10-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX90A-NEXT:    buffer_wbinvl1_vol
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_fadd_noret_f32:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_mov_b32 s2, 0
 ; GFX10-NEXT:  .LBB2_1: ; %atomicrmw.start
 ; GFX10-NEXT:    ; =>This Inner Loop Header: Depth=1
 ; GFX10-NEXT:    v_add_f32_e32 v0, 4.0, v1
 ; GFX10-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX90A-NEXT:    buffer_wbinvl1_vol
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_fadd_noret_f32_ieee:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_mov_b32 s2, 0
 ; GFX10-NEXT:  .LBB3_1: ; %atomicrmw.start
 ; GFX10-NEXT:    ; =>This Inner Loop Header: Depth=1
 ; GFX10-NEXT:    v_add_f32_e32 v0, 4.0, v1
 ; GFX10-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX90A-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_fadd_ret_f32_agent:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_mov_b32 s2, 0
 ; GFX10-NEXT:  .LBB4_1: ; %atomicrmw.start
 ; GFX10-NEXT:    ; =>This Inner Loop Header: Depth=1
 ; GFX10-NEXT:    v_mov_b32_e32 v2, v1
 ; GFX10-NEXT:    v_add_f32_e32 v1, 4.0, v2
 ; GFX10-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX90A-NEXT:    global_store_dword v[0:1], v1, off
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_fadd_ret_f32_system:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_mov_b32 s2, 0
 ; GFX10-NEXT:  .LBB5_1: ; %atomicrmw.start
 ; GFX10-NEXT:    ; =>This Inner Loop Header: Depth=1
 ; GFX10-NEXT:    v_mov_b32_e32 v2, v1
 ; GFX10-NEXT:    v_add_f32_e32 v1, 4.0, v2
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)

 ; GFX90A-NEXT:  ; %bb.2: ; %atomicrmw.end
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: global_atomic_fadd_noret_f32_safe:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_mov_b32 s2, 0
 ; GFX10-NEXT:  .LBB8_1: ; %atomicrmw.start
 ; GFX10-NEXT:    ; =>This Inner Loop Header: Depth=1
 ; GFX10-NEXT:    v_add_f32_e32 v0, 4.0, v1
 ; GFX10-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX90A-NEXT:    global_atomic_add_f32 v0, v1, s[0:1]
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: infer_as_before_atomic:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    s_mov_b32 s2, 0
 ; GFX10-NEXT:  .LBB9_1: ; %atomicrmw.start
 ; GFX10-NEXT:    ; =>This Inner Loop Header: Depth=1
 ; GFX10-NEXT:    v_add_f32_e32 v0, 1.0, v1
 ; GFX10-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] glc
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)

llvm/test/CodeGen/AMDGPU/global-i16-load-store.ll

 ; GFX90A-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX90A-NEXT:    global_load_dwordx4 v[0:3], v4, s[0:1]
 ; GFX90A-NEXT:    s_waitcnt vmcnt(0)
 ; GFX90A-NEXT:    global_store_dwordx4 v4, v[0:3], s[2:3]
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: half8:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v4, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_dwordx4 v[0:3], v4, s[0:1]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    global_store_dwordx4 v4, v[0:3], s[2:3]
 ; GFX1030-NEXT:    s_endpgm
   %gep0 = getelementptr half, ptr addrspace(1) %0, i64 0
   %gep1 = getelementptr half, ptr addrspace(1) %0, i64 1

 ; GFX90A-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX90A-NEXT:    global_load_dwordx3 v[0:2], v3, s[0:1]
 ; GFX90A-NEXT:    s_waitcnt vmcnt(0)
 ; GFX90A-NEXT:    global_store_dwordx3 v3, v[0:2], s[2:3]
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: half6:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v3, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_dwordx3 v[0:2], v3, s[0:1]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    global_store_dwordx3 v3, v[0:2], s[2:3]
 ; GFX1030-NEXT:    s_endpgm
   %gep0 = getelementptr half, ptr addrspace(1) %0, i64 0
   %gep1 = getelementptr half, ptr addrspace(1) %0, i64 1

 ; GFX90A-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
 ; GFX90A-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX90A-NEXT:    v_pk_mov_b32 v[0:1], s[0:1], s[0:1] op_sel:[0,1]
 ; GFX90A-NEXT:    global_store_dwordx2 v2, v[0:1], s[2:3]
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: half4:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1030-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX1030-NEXT:    s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX1030-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX1030-NEXT:    global_store_dwordx2 v2, v[0:1], s[2:3]
 ; GFX1030-NEXT:    s_endpgm
   %gep0 = getelementptr half, ptr addrspace(1) %0, i64 0
   %gep1 = getelementptr half, ptr addrspace(1) %0, i64 1
   %gep2 = getelementptr half, ptr addrspace(1) %0, i64 2

 ; GFX90A-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX90A-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX90A-NEXT:    s_waitcnt vmcnt(0)
 ; GFX90A-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX90A-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: half2:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX1030-NEXT:    s_endpgm
   %gep0 = getelementptr half, ptr addrspace(1) %0, i64 0
   %gep1 = getelementptr half, ptr addrspace(1) %0, i64 1

llvm/test/CodeGen/AMDGPU/idot2.ll

 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_dot2_u32_u16 v1, v2, v1, s2
 ; GFX10-DL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm
                                  ptr addrspace(1) %src2,
                                  ptr addrspace(1) nocapture %dst) {
 entry:
   %idx = call i32 @llvm.amdgcn.workitem.id.x()

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v0, v2, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v1, v2, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_add3_u32 v0, v1, v0, s2
 ; GFX10-DL-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm

 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_dot2_i32_i16 v1, v2, v1, s2
 ; GFX10-DL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm
                                  ptr addrspace(1) %src2,
                                  ptr addrspace(1) nocapture %dst) {
 entry:
   %idx = call i32 @llvm.amdgcn.workitem.id.x()

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v0, sext(v2), sext(v1) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v1, v2, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_add3_u32 v0, v1, s2, v0
 ; GFX10-DL-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm

 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_dot2_u32_u16 v1, v2, v1, s2
 ; GFX10-DL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm
                                                  ptr addrspace(1) %src2,
                                                  ptr addrspace(1) nocapture %dst) {
 entry:
   %idx = call i32 @llvm.amdgcn.workitem.id.x()

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v0, v2, sext(v1) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v1, sext(v2), sext(v1) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_add3_u32 v0, v1, s2, v0
 ; GFX10-DL-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v0, v1, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v1, v2, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_add3_u32 v0, v1, s2, v0
 ; GFX10-DL-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_dot2_u32_u16 v1, v2, v1, s2
 ; GFX10-DL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm
                                        ptr addrspace(1) %src2,
                                        ptr addrspace(1) nocapture %dst) {
 entry:
   %idx = call i32 @llvm.amdgcn.workitem.id.x()

 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 3, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5] offset:4
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7] offset:4
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_dot2_u32_u16 v1, v2, v1, s2
 ; GFX10-DL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm
                                           ptr addrspace(1) %src2,
                                           ptr addrspace(1) nocapture %dst) {
 entry:
   %idx = call i32 @llvm.amdgcn.workitem.id.x()

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v4, 3, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dwordx2 v[0:1], v4, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dwordx2 v[2:3], v4, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v0, v2, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v1, v3, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_add3_u32 v0, v1, s2, v0
 ; GFX10-DL-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v4, 3, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dwordx2 v[0:1], v4, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dwordx2 v[2:3], v4, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v0, v2, v0 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v1, v3, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_add3_u32 v0, v1, s2, v0
 ; GFX10-DL-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v0, v2, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v1, v2, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_1
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_add3_u32 v0, v1, s2, v0
 ; GFX10-DL-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_lshrrev_b32_e32 v0, 16, v1
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_lshrrev_b32_e32 v3, 16, v2
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v1, v2, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_mad_u32_u24 v0, v3, v0, s2

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_ashrrev_i32_e32 v0, 16, v1
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_ashrrev_i32_e32 v3, 16, v2
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v1, sext(v2), sext(v1) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_mad_i32_i24 v0, v3, v0, s2

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_and_b32_e32 v0, 0xffff, v1
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_and_b32_e32 v3, 0xffff, v2
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v1, v2, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
 ; GFX10-DL-NEXT:    v_mul_u32_u24_e32 v2, v3, v0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_mad_u32_u24 v0, v3, v0, s2

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_bfe_i32 v0, v1, 0, 16
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_bfe_i32 v3, v2, 0, 16
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v1, sext(v2), sext(v1) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1 src1_sel:WORD_1
 ; GFX10-DL-NEXT:    v_mul_i32_i24_e32 v2, v3, v0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_mad_i32_i24 v0, v3, v0, s2

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_lshrrev_b32_e32 v0, 16, v1
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_lshrrev_b32_e32 v3, 16, v2
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v1, v2, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mul_u32_u24_e32 v2, v3, v0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_mad_u32_u24 v0, v3, v0, s2

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_ashrrev_i32_e32 v0, 16, v1
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_ashrrev_i32_e32 v3, 16, v2
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v1, sext(v2), sext(v1) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0 src1_sel:WORD_0
 ; GFX10-DL-NEXT:    v_mul_i32_i24_e32 v2, v3, v0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_mad_i32_i24 v0, v3, v0, s2

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 1, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_ushort v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_ushort v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_lshrrev_b16 v0, 8, v1
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_lshrrev_b16 v3, 8, v2
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v1, sext(v2), sext(v1) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_0 src1_sel:BYTE_0
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v0, sext(v3), sext(v0) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_0 src1_sel:BYTE_0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)

llvm/test/CodeGen/AMDGPU/idot4s.ll

 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_dot4_i32_i8 v1, v1, v2, s2
 ; GFX10-DL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm
                                        ptr addrspace(1) %src2,
                                        ptr addrspace(1) nocapture %dst) {
 entry:
   %idx = call i32 @llvm.amdgcn.workitem.id.x()

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_bfe_i32 v0, v1, 0, 8
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_bfe_i32 v3, v2, 0, 8
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v4, sext(v1), sext(v2) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_1 src1_sel:BYTE_1
 ; GFX10-DL-NEXT:    v_mul_i32_i24_e32 v5, v0, v3
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_mad_i32_i24 v0, v0, v3, s2

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_lshrrev_b16 v0, 8, v1
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_lshrrev_b16 v3, 8, v2
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v4, sext(v1), sext(v2) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_0 src1_sel:BYTE_0
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v0, sext(v0), sext(v3) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_0 src1_sel:BYTE_0
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v3, sext(v1), sext(v2) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_2 src1_sel:BYTE_2
 ; GFX10-DL-NEXT:    v_mul_i32_i24_sdwa v1, sext(v1), sext(v2) dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_3 src1_sel:BYTE_3

llvm/test/CodeGen/AMDGPU/idot4u.ll

 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_dot4_u32_u8 v1, v1, v2, s2
 ; GFX10-DL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm
                                        ptr addrspace(1) %src2,
                                        ptr addrspace(1) nocapture %dst) {
 entry:
   %idx = call i32 @llvm.amdgcn.workitem.id.x()

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_and_b32_e32 v0, 0xff, v1
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_and_b32_e32 v3, 0xff, v2
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v4, v1, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_1 src1_sel:BYTE_1
 ; GFX10-DL-NEXT:    v_mul_u32_u24_e32 v5, v0, v3
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_mad_u32_u24 v0, v0, v3, s2

 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_bfe_u32 v0, v1, 8, 8
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_bfe_u32 v3, v2, 8, 8
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v4, v1, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_0 src1_sel:BYTE_0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_mad_u32_u24 v0, v0, v3, s2
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v3, v1, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_2 src1_sel:BYTE_2

 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0xffff
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_and_b32_sdwa v3, v0, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:BYTE_1
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_and_b32_sdwa v0, v0, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:DWORD src1_sel:BYTE_1
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v4, v1, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_0 src1_sel:BYTE_0
 ; GFX10-DL-NEXT:    v_mul_u32_u24_e32 v0, v3, v0
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v3, v1, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_2 src1_sel:BYTE_2
 ; GFX10-DL-NEXT:    v_mul_u32_u24_sdwa v1, v1, v2 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:BYTE_3 src1_sel:BYTE_3

llvm/test/CodeGen/AMDGPU/idot8s.ll

 ; GFX10-DL-XNACK-NEXT:    s_mov_b32 s11, 0x31c16000
 ; GFX10-DL-XNACK-NEXT:    s_add_u32 s8, s8, s3
 ; GFX10-DL-XNACK-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-DL-XNACK-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-XNACK-NEXT:    s_clause 0x1
 ; GFX10-DL-XNACK-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-XNACK-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-XNACK-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-XNACK-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-XNACK-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-XNACK-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-XNACK-NEXT:    v_dot8_i32_i4 v1, v1, v2, s2
 ; GFX10-DL-XNACK-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-XNACK-NEXT:    s_endpgm
 ;
 ; GFX10-DL-NOXNACK-LABEL: idot8_acc32:
 ; GFX10-DL-NOXNACK:       ; %bb.0: ; %entry
 ; GFX10-DL-NOXNACK-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NOXNACK-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NOXNACK-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NOXNACK-NEXT:    s_mov_b32 s8, SCRATCH_RSRC_DWORD0
 ; GFX10-DL-NOXNACK-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NOXNACK-NEXT:    s_mov_b32 s9, SCRATCH_RSRC_DWORD1
 ; GFX10-DL-NOXNACK-NEXT:    s_mov_b32 s10, -1
 ; GFX10-DL-NOXNACK-NEXT:    s_mov_b32 s11, 0x31c16000
 ; GFX10-DL-NOXNACK-NEXT:    s_add_u32 s8, s8, s3
 ; GFX10-DL-NOXNACK-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-DL-NOXNACK-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NOXNACK-NEXT:    s_clause 0x1
 ; GFX10-DL-NOXNACK-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NOXNACK-NEXT:    global_load_dword v0, v0, s[6:7]
-; GFX10-DL-NOXNACK-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NOXNACK-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NOXNACK-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NOXNACK-NEXT:    v_dot8_i32_i4 v0, v1, v0, s2
 ; GFX10-DL-NOXNACK-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-DL-NOXNACK-NEXT:    s_endpgm
 ; GFX10-DL-LABEL: idot8_acc32:
 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_mov_b32 s8, SCRATCH_RSRC_DWORD0
 ; GFX10-DL-NEXT:    s_mov_b32 s9, SCRATCH_RSRC_DWORD1

 ; GFX10-DL-XNACK-NEXT:    s_mov_b32 s10, -1
 ; GFX10-DL-XNACK-NEXT:    s_mov_b32 s11, 0x31c16000
 ; GFX10-DL-XNACK-NEXT:    s_add_u32 s8, s8, s3
 ; GFX10-DL-XNACK-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-DL-XNACK-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-XNACK-NEXT:    s_clause 0x1
 ; GFX10-DL-XNACK-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-XNACK-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-XNACK-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-XNACK-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-XNACK-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-XNACK-NEXT:    v_bfe_i32 v0, v1, 0, 4
 ; GFX10-DL-XNACK-NEXT:    v_bfe_i32 v3, v1, 4, 4
 ; GFX10-DL-XNACK-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-XNACK-NEXT:    v_bfe_i32 v4, v2, 4, 4
 ; GFX10-DL-XNACK-NEXT:    v_bfe_i32 v5, v1, 8, 4
 ; GFX10-DL-XNACK-NEXT:    v_bfe_i32 v6, v2, 8, 4
 ; GFX10-DL-XNACK-NEXT:    v_bfe_i32 v7, v2, 0, 4

 ; GFX10-DL-NOXNACK-NEXT:    s_mov_b32 s10, -1
 ; GFX10-DL-NOXNACK-NEXT:    s_mov_b32 s11, 0x31c16000
 ; GFX10-DL-NOXNACK-NEXT:    s_add_u32 s8, s8, s3
 ; GFX10-DL-NOXNACK-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-DL-NOXNACK-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NOXNACK-NEXT:    s_clause 0x1
 ; GFX10-DL-NOXNACK-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NOXNACK-NEXT:    global_load_dword v0, v0, s[6:7]
-; GFX10-DL-NOXNACK-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NOXNACK-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NOXNACK-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NOXNACK-NEXT:    v_bfe_i32 v2, v1, 0, 4
 ; GFX10-DL-NOXNACK-NEXT:    v_bfe_i32 v3, v1, 4, 4
 ; GFX10-DL-NOXNACK-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NOXNACK-NEXT:    v_bfe_i32 v4, v0, 4, 4
 ; GFX10-DL-NOXNACK-NEXT:    v_bfe_i32 v5, v1, 8, 4
 ; GFX10-DL-NOXNACK-NEXT:    v_bfe_i32 v6, v0, 8, 4
 ; GFX10-DL-NOXNACK-NEXT:    v_bfe_i32 v7, v0, 0, 4

 ; GFX10-DL-XNACK-NEXT:    s_mov_b32 s11, 0x31c16000
 ; GFX10-DL-XNACK-NEXT:    s_add_u32 s8, s8, s3
 ; GFX10-DL-XNACK-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-DL-XNACK-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-XNACK-NEXT:    s_clause 0x1
 ; GFX10-DL-XNACK-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-XNACK-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-XNACK-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-XNACK-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-XNACK-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-XNACK-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-XNACK-NEXT:    v_dot8_i32_i4 v1, v1, v2, s2
 ; GFX10-DL-XNACK-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-XNACK-NEXT:    s_endpgm
 ;
 ; GFX10-DL-NOXNACK-LABEL: idot8_acc32_vecMul:
 ; GFX10-DL-NOXNACK:       ; %bb.0: ; %entry
 ; GFX10-DL-NOXNACK-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NOXNACK-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NOXNACK-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NOXNACK-NEXT:    s_mov_b32 s8, SCRATCH_RSRC_DWORD0
 ; GFX10-DL-NOXNACK-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-DL-NOXNACK-NEXT:    s_mov_b32 s9, SCRATCH_RSRC_DWORD1
 ; GFX10-DL-NOXNACK-NEXT:    s_mov_b32 s10, -1
 ; GFX10-DL-NOXNACK-NEXT:    s_mov_b32 s11, 0x31c16000
 ; GFX10-DL-NOXNACK-NEXT:    s_add_u32 s8, s8, s3
 ; GFX10-DL-NOXNACK-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-DL-NOXNACK-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NOXNACK-NEXT:    s_clause 0x1
 ; GFX10-DL-NOXNACK-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NOXNACK-NEXT:    global_load_dword v0, v0, s[6:7]
-; GFX10-DL-NOXNACK-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NOXNACK-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NOXNACK-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NOXNACK-NEXT:    v_dot8_i32_i4 v0, v1, v0, s2
 ; GFX10-DL-NOXNACK-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-DL-NOXNACK-NEXT:    s_endpgm
 ; GFX10-DL-LABEL: idot8_acc32_vecMul:
 ; GFX10-DL:       ; %bb.0: ; %entry
 ; GFX10-DL-NEXT:    s_mov_b32 s8, SCRATCH_RSRC_DWORD0
 ; GFX10-DL-NEXT:    s_mov_b32 s9, SCRATCH_RSRC_DWORD1

llvm/test/CodeGen/AMDGPU/idot8u.ll

 ; GFX10-DL-NEXT:    s_mov_b32 s11, 0x31c16000
 ; GFX10-DL-NEXT:    s_add_u32 s8, s8, s3
 ; GFX10-DL-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_dot8_u32_u4 v1, v1, v2, s2
 ; GFX10-DL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm
                                        ptr addrspace(1) %src2,
                                        ptr addrspace(1) nocapture %dst) {
 entry:
   %idx = call i32 @llvm.amdgcn.workitem.id.x()

 ; GFX10-DL-NEXT:    s_mov_b32 s10, -1
 ; GFX10-DL-NEXT:    s_mov_b32 s11, 0x31c16000
 ; GFX10-DL-NEXT:    s_add_u32 s8, s8, s3
 ; GFX10-DL-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(1)
 ; GFX10-DL-NEXT:    v_and_b32_e32 v8, 15, v1
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-DL-NEXT:    v_and_b32_e32 v9, 15, v2
 ; GFX10-DL-NEXT:    v_bfe_u32 v0, v1, 4, 4
 ; GFX10-DL-NEXT:    v_lshrrev_b32_e32 v3, 28, v1
 ; GFX10-DL-NEXT:    v_bfe_u32 v4, v1, 24, 4
 ; GFX10-DL-NEXT:    v_bfe_u32 v5, v1, 20, 4

 ; GFX10-DL-NEXT:    s_mov_b32 s11, 0x31c16000
 ; GFX10-DL-NEXT:    s_add_u32 s8, s8, s3
 ; GFX10-DL-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_dot8_u32_u4 v1, v1, v2, s2
 ; GFX10-DL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm
                                               ptr addrspace(1) %src2,
                                               ptr addrspace(1) nocapture %dst) {
 entry:
   %idx = call i32 @llvm.amdgcn.workitem.id.x()

 ; GFX10-DL-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-DL-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-DL-NEXT:    s_load_dwordx2 s[0:1], s[0:1], 0x34
 ; GFX10-DL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-DL-NEXT:    s_clause 0x1
 ; GFX10-DL-NEXT:    global_load_dword v1, v0, s[4:5]
 ; GFX10-DL-NEXT:    global_load_dword v2, v0, s[6:7]
 ; GFX10-DL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-DL-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-DL-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-DL-NEXT:    v_dot8_u32_u4 v1, v2, v1, s2
 ; GFX10-DL-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-DL-NEXT:    s_endpgm
                                           ptr addrspace(1) %v2addr,
                                           ptr addrspace(1) %dst) {
 entry:
   %idx = call i32 @llvm.amdgcn.workitem.id.x()

llvm/test/CodeGen/AMDGPU/imm16.ll

 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=gfx1010 -mattr=-flat-for-global -mattr=-flat-for-global -verify-machineinstrs -show-mc-encoding < %s | FileCheck -check-prefix=GFX10 %s
 ; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=gfx1100 -mattr=-flat-for-global -mattr=-flat-for-global -verify-machineinstrs -show-mc-encoding < %s | FileCheck -check-prefix=GFX11 %s
 ; RUN: llc -mtriple=amdgcn--amdhsa -mcpu=tonga -mattr=-flat-for-global -mattr=-flat-for-global -verify-machineinstrs -show-mc-encoding < %s | FileCheck -check-prefix=VI %s
 ; RUN: llc -march=amdgcn -mcpu=tahiti -verify-machineinstrs < %s | FileCheck -check-prefix=SI %s
 
 ; FIXME: Merge into imm.ll
 
 define amdgpu_kernel void @store_inline_imm_neg_0.0_i16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_neg_0.0_i16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0xffff8000 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0x80,0xff,0xff]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_waitcnt_vscnt null, 0x0 ; encoding: [0x00,0x00,0xfd,0xbb]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;

 ; SI-NEXT:    s_endpgm
   store volatile i16 -32768, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_0.0_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_0.0_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0 ; encoding: [0x80,0x02,0x00,0x7e]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_0.0_f16:

 ; SI-NEXT:    s_endpgm
   store half 0.0, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_imm_neg_0.0_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_imm_neg_0.0_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0xffff8000 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0x80,0xff,0xff]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_imm_neg_0.0_f16:

 ; SI-NEXT:    s_endpgm
   store half -0.0, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_0.5_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_0.5_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0x3800 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0x38,0x00,0x00]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_0.5_f16:

 ; SI-NEXT:    s_endpgm
   store half 0.5, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_m_0.5_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_m_0.5_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0xffffb800 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0xb8,0xff,0xff]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_m_0.5_f16:

 ; SI-NEXT:    s_endpgm
   store half -0.5, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_1.0_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_1.0_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0x3c00 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0x3c,0x00,0x00]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_1.0_f16:

 ; SI-NEXT:    s_endpgm
   store half 1.0, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_m_1.0_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_m_1.0_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0xffffbc00 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0xbc,0xff,0xff]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_m_1.0_f16:

 ; SI-NEXT:    s_endpgm
   store half -1.0, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_2.0_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_2.0_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0x4000 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0x40,0x00,0x00]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_2.0_f16:

 ; SI-NEXT:    s_endpgm
   store half 2.0, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_m_2.0_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_m_2.0_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0xffffc000 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0xc0,0xff,0xff]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_m_2.0_f16:

 ; SI-NEXT:    s_endpgm
   store half -2.0, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_4.0_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_4.0_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0x4400 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0x44,0x00,0x00]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_4.0_f16:

 ; SI-NEXT:    s_endpgm
   store half 4.0, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_m_4.0_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_m_4.0_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0xffffc400 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0xc4,0xff,0xff]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_m_4.0_f16:

 ; SI-NEXT:    s_endpgm
   store half -4.0, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_inv_2pi_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_inv_2pi_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0x3118 ; encoding: [0xff,0x02,0x00,0x7e,0x18,0x31,0x00,0x00]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_inv_2pi_f16:

 ; SI-NEXT:    s_endpgm
   store half 0xH3118, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_inline_imm_m_inv_2pi_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_inline_imm_m_inv_2pi_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0xffffb118 ; encoding: [0xff,0x02,0x00,0x7e,0x18,0xb1,0xff,0xff]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_inline_imm_m_inv_2pi_f16:

 ; SI-NEXT:    s_endpgm
   store half 0xHB118, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @store_literal_imm_f16(ptr addrspace(1) %out) {
 ; GFX10-LABEL: store_literal_imm_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0x6c00 ; encoding: [0xff,0x02,0x00,0x7e,0x00,0x6c,0x00,0x00]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: store_literal_imm_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_0.0_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_0.0_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, 0 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0x00,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_0.0_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_0.5_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_0.5_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, 0.5 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0xe0,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_0.5_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_neg_0.5_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_neg_0.5_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, -0.5 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0xe2,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_neg_0.5_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_1.0_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_1.0_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, 1.0 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0xe4,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_1.0_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_neg_1.0_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_neg_1.0_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, -1.0 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0xe6,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_neg_1.0_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_2.0_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_2.0_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, 2.0 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0xe8,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_2.0_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_neg_2.0_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_neg_2.0_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, -2.0 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0xea,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_neg_2.0_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_4.0_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_4.0_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, 4.0 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0xec,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_4.0_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_neg_4.0_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_neg_4.0_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, -4.0 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0xee,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_neg_4.0_f16:
; SI-NEXT:    s_endpgm
   %y = fadd half %x, -4.0
   store half %y, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @commute_add_inline_imm_0.5_f16(ptr addrspace(1) %out, ptr addrspace(1) %in) {
 ; GFX10-LABEL: commute_add_inline_imm_0.5_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0 ; encoding: [0x02,0x00,0x08,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null ; encoding: [0x02,0x00,0x08,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s6, -1 ; encoding: [0xc1,0x03,0x86,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000 ; encoding: [0xff,0x03,0x87,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s10, s6 ; encoding: [0x06,0x03,0x8a,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s11, s7 ; encoding: [0x07,0x03,0x8b,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    s_mov_b32 s8, s2 ; encoding: [0x02,0x03,0x88,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s9, s3 ; encoding: [0x03,0x03,0x89,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s4, s0 ; encoding: [0x00,0x03,0x84,0xbe]
; SI-NEXT:    s_endpgm
   %y = fadd half %x, 0.5
   store half %y, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @commute_add_literal_f16(ptr addrspace(1) %out, ptr addrspace(1) %in) {
 ; GFX10-LABEL: commute_add_literal_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0 ; encoding: [0x02,0x00,0x08,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null ; encoding: [0x02,0x00,0x08,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s6, -1 ; encoding: [0xc1,0x03,0x86,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000 ; encoding: [0xff,0x03,0x87,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s10, s6 ; encoding: [0x06,0x03,0x8a,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s11, s7 ; encoding: [0x07,0x03,0x8b,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    s_mov_b32 s8, s2 ; encoding: [0x02,0x03,0x88,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s9, s3 ; encoding: [0x03,0x03,0x89,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s4, s0 ; encoding: [0x00,0x03,0x84,0xbe]
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_1_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_1_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, 1 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0x02,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_1_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_2_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_2_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, 2 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0x04,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_2_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_16_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_16_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, 16 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0x20,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_16_f16:
; SI-NEXT:    s_endpgm
   %y = fadd half %x, 0xH0010
   store half %y, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_neg_1_f16(ptr addrspace(1) %out, ptr addrspace(1) %in) {
 ; GFX10-LABEL: add_inline_imm_neg_1_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0 ; encoding: [0x02,0x00,0x08,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null ; encoding: [0x02,0x00,0x08,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s6, -1 ; encoding: [0xc1,0x03,0x86,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000 ; encoding: [0xff,0x03,0x87,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s10, s6 ; encoding: [0x06,0x03,0x8a,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s11, s7 ; encoding: [0x07,0x03,0x8b,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    s_mov_b32 s8, s2 ; encoding: [0x02,0x03,0x88,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s9, s3 ; encoding: [0x03,0x03,0x89,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s4, s0 ; encoding: [0x00,0x03,0x84,0xbe]
; SI-NEXT:    s_endpgm
   %ybc = bitcast i16 %y to half
   store half %ybc, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_neg_2_f16(ptr addrspace(1) %out, ptr addrspace(1) %in) {
 ; GFX10-LABEL: add_inline_imm_neg_2_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0 ; encoding: [0x02,0x00,0x08,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null ; encoding: [0x02,0x00,0x08,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s6, -1 ; encoding: [0xc1,0x03,0x86,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000 ; encoding: [0xff,0x03,0x87,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s10, s6 ; encoding: [0x06,0x03,0x8a,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s11, s7 ; encoding: [0x07,0x03,0x8b,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    s_mov_b32 s8, s2 ; encoding: [0x02,0x03,0x88,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s9, s3 ; encoding: [0x03,0x03,0x89,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s4, s0 ; encoding: [0x00,0x03,0x84,0xbe]
; SI-NEXT:    s_endpgm
   %ybc = bitcast i16 %y to half
   store half %ybc, ptr addrspace(1) %out
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_neg_16_f16(ptr addrspace(1) %out, ptr addrspace(1) %in) {
 ; GFX10-LABEL: add_inline_imm_neg_16_f16:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0 ; encoding: [0x02,0x00,0x08,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null ; encoding: [0x02,0x00,0x08,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s6, -1 ; encoding: [0xc1,0x03,0x86,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000 ; encoding: [0xff,0x03,0x87,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_mov_b32 s10, s6 ; encoding: [0x06,0x03,0x8a,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s11, s7 ; encoding: [0x07,0x03,0x8b,0xbe]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    s_mov_b32 s8, s2 ; encoding: [0x02,0x03,0x88,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s9, s3 ; encoding: [0x03,0x03,0x89,0xbe]
 ; GFX10-NEXT:    s_mov_b32 s4, s0 ; encoding: [0x00,0x03,0x84,0xbe]
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_63_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_63_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, 63 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0x7e,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_63_f16:
; SI-NEXT:    s_endpgm
   ret void
 }
 
 define amdgpu_kernel void @add_inline_imm_64_f16(ptr addrspace(1) %out, half %x) {
 ; GFX10-LABEL: add_inline_imm_64_f16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1 ; encoding: [0x01,0x00,0xa1,0xbf]
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x8 ; encoding: [0x82,0x00,0x00,0xf4,0x08,0x00,0x00,0xfa]
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0 ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null ; encoding: [0x02,0x00,0x04,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000 ; encoding: [0xff,0x03,0x83,0xbe,0x00,0x60,0x01,0x31]
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0) ; encoding: [0x7f,0xc0,0x8c,0xbf]
 ; GFX10-NEXT:    v_add_f16_e64 v0, s2, 64 ; encoding: [0x00,0x00,0x32,0xd5,0x02,0x80,0x01,0x00]
 ; GFX10-NEXT:    s_mov_b32 s2, -1 ; encoding: [0xc1,0x03,0x82,0xbe]
 ; GFX10-NEXT:    buffer_store_short v0, off, s[0:3], 0 ; encoding: [0x00,0x00,0x68,0xe0,0x00,0x00,0x00,0x80]
 ; GFX10-NEXT:    s_endpgm ; encoding: [0x00,0x00,0x81,0xbf]
 ;
 ; GFX11-LABEL: add_inline_imm_64_f16:

llvm/test/CodeGen/AMDGPU/lds-frame-extern.ll

 @extern_normal = external addrspace(3) global [0 x float]
 @extern_overalign = external addrspace(3) global [0 x float], align 8
 
 ; 2^3 cases encoded into function names
 
 define amdgpu_kernel void @module_0_kernel_normal_extern_normal(i32 %idx) #1 {
 ; CHECK-LABEL: module_0_kernel_normal_extern_normal:
 ; CHECK:       ; %bb.0:
-; CHECK-NEXT:    s_load_dword s0, s[4:5], 0x0
+; CHECK-NEXT:    s_load_dword s0, s[4:5], null
 ; CHECK-NEXT:    v_mov_b32_e32 v0, 0
 ; CHECK-NEXT:    v_mov_b32_e32 v1, 2
 ; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
 ; CHECK-NEXT:    s_lshl_b32 s0, s0, 2
 ; CHECK-NEXT:    s_add_i32 s0, s0, 4
 ; CHECK-NEXT:    v_mov_b32_e32 v2, s0
 ; CHECK-NEXT:    ds_write_b16 v0, v1
 ; CHECK-NEXT:    ds_write_b32 v2, v0

 ; CHECK-NEXT:    s_addc_u32 s9, s9, 0
 ; CHECK-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s8
 ; CHECK-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s9
 ; CHECK-NEXT:    s_add_u32 s0, s0, s11
 ; CHECK-NEXT:    s_addc_u32 s1, s1, 0
 ; CHECK-NEXT:    s_getpc_b64 s[8:9]
 ; CHECK-NEXT:    s_add_u32 s8, s8, use_module@gotpcrel32@lo+4
 ; CHECK-NEXT:    s_addc_u32 s9, s9, use_module@gotpcrel32@hi+12
-; CHECK-NEXT:    s_load_dwordx2 s[10:11], s[8:9], 0x0
-; CHECK-NEXT:    s_load_dword s12, s[6:7], 0x0
+; CHECK-NEXT:    s_load_dwordx2 s[10:11], s[8:9], null
+; CHECK-NEXT:    s_load_dword s12, s[6:7], null
 ; CHECK-NEXT:    s_mov_b64 s[6:7], s[4:5]
 ; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
 ; CHECK-NEXT:    s_swappc_b64 s[30:31], s[10:11]
 ; CHECK-NEXT:    s_lshl_b32 s4, s12, 2
 ; CHECK-NEXT:    v_mov_b32_e32 v0, 0
 ; CHECK-NEXT:    v_mov_b32_e32 v1, 1
 ; CHECK-NEXT:    s_add_i32 s4, s4, 4
 ; CHECK-NEXT:    v_mov_b32_e32 v2, 2
; CHECK-NEXT:    s_endpgm
   %arrayidx1 = getelementptr inbounds [0 x float], ptr addrspace(3) @extern_normal, i32 0, i32 %idx
   store float 0.0, ptr addrspace(3) %arrayidx1
   ret void
 }
 
 define amdgpu_kernel void @module_0_kernel_overalign_extern_normal(i32 %idx) #1 {
 ; CHECK-LABEL: module_0_kernel_overalign_extern_normal:
 ; CHECK:       ; %bb.0:
-; CHECK-NEXT:    s_load_dword s0, s[4:5], 0x0
+; CHECK-NEXT:    s_load_dword s0, s[4:5], null
 ; CHECK-NEXT:    v_mov_b32_e32 v0, 0
 ; CHECK-NEXT:    v_mov_b32_e32 v1, 2
 ; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
 ; CHECK-NEXT:    s_lshl_b32 s0, s0, 2
 ; CHECK-NEXT:    s_add_i32 s0, s0, 4
 ; CHECK-NEXT:    v_mov_b32_e32 v2, s0
 ; CHECK-NEXT:    ds_write_b16 v0, v1
 ; CHECK-NEXT:    ds_write_b32 v2, v0

 ; CHECK-NEXT:    s_addc_u32 s9, s9, 0
 ; CHECK-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s8
 ; CHECK-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s9
 ; CHECK-NEXT:    s_add_u32 s0, s0, s11
 ; CHECK-NEXT:    s_addc_u32 s1, s1, 0
 ; CHECK-NEXT:    s_getpc_b64 s[8:9]
 ; CHECK-NEXT:    s_add_u32 s8, s8, use_module@gotpcrel32@lo+4
 ; CHECK-NEXT:    s_addc_u32 s9, s9, use_module@gotpcrel32@hi+12
-; CHECK-NEXT:    s_load_dwordx2 s[10:11], s[8:9], 0x0
-; CHECK-NEXT:    s_load_dword s12, s[6:7], 0x0
+; CHECK-NEXT:    s_load_dwordx2 s[10:11], s[8:9], null
+; CHECK-NEXT:    s_load_dword s12, s[6:7], null
 ; CHECK-NEXT:    s_mov_b64 s[6:7], s[4:5]
 ; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
 ; CHECK-NEXT:    s_swappc_b64 s[30:31], s[10:11]
 ; CHECK-NEXT:    s_lshl_b32 s4, s12, 2
 ; CHECK-NEXT:    v_mov_b32_e32 v0, 0
 ; CHECK-NEXT:    v_mov_b32_e32 v1, 1
 ; CHECK-NEXT:    s_add_i32 s4, s4, 8
 ; CHECK-NEXT:    v_mov_b32_e32 v2, 2
; CHECK-NEXT:    s_endpgm
   %arrayidx1 = getelementptr inbounds [0 x float], ptr addrspace(3) @extern_normal, i32 0, i32 %idx
   store float 0.0, ptr addrspace(3) %arrayidx1
   ret void
 }
 
 define amdgpu_kernel void @module_0_kernel_normal_extern_overalign(i32 %idx) #1 {
 ; CHECK-LABEL: module_0_kernel_normal_extern_overalign:
 ; CHECK:       ; %bb.0:
-; CHECK-NEXT:    s_load_dword s0, s[4:5], 0x0
+; CHECK-NEXT:    s_load_dword s0, s[4:5], null
 ; CHECK-NEXT:    v_mov_b32_e32 v0, 0
 ; CHECK-NEXT:    v_mov_b32_e32 v1, 2
 ; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
 ; CHECK-NEXT:    s_lshl_b32 s0, s0, 2
 ; CHECK-NEXT:    s_add_i32 s0, s0, 8
 ; CHECK-NEXT:    v_mov_b32_e32 v2, s0
 ; CHECK-NEXT:    ds_write_b16 v0, v1
 ; CHECK-NEXT:    ds_write_b32 v2, v0

 ; CHECK-NEXT:    s_addc_u32 s9, s9, 0
 ; CHECK-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s8
 ; CHECK-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s9
 ; CHECK-NEXT:    s_add_u32 s0, s0, s11
 ; CHECK-NEXT:    s_addc_u32 s1, s1, 0
 ; CHECK-NEXT:    s_getpc_b64 s[8:9]
 ; CHECK-NEXT:    s_add_u32 s8, s8, use_module@gotpcrel32@lo+4
 ; CHECK-NEXT:    s_addc_u32 s9, s9, use_module@gotpcrel32@hi+12
-; CHECK-NEXT:    s_load_dwordx2 s[10:11], s[8:9], 0x0
-; CHECK-NEXT:    s_load_dword s12, s[6:7], 0x0
+; CHECK-NEXT:    s_load_dwordx2 s[10:11], s[8:9], null
+; CHECK-NEXT:    s_load_dword s12, s[6:7], null
 ; CHECK-NEXT:    s_mov_b64 s[6:7], s[4:5]
 ; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
 ; CHECK-NEXT:    s_swappc_b64 s[30:31], s[10:11]
 ; CHECK-NEXT:    s_lshl_b32 s4, s12, 2
 ; CHECK-NEXT:    v_mov_b32_e32 v0, 0
 ; CHECK-NEXT:    v_mov_b32_e32 v1, 1
 ; CHECK-NEXT:    s_add_i32 s4, s4, 8
 ; CHECK-NEXT:    v_mov_b32_e32 v2, 2
; CHECK-NEXT:    s_endpgm
   %arrayidx1 = getelementptr inbounds [0 x float], ptr addrspace(3) @extern_overalign, i32 0, i32 %idx
   store float 0.0, ptr addrspace(3) %arrayidx1
   ret void
 }
 
 define amdgpu_kernel void @module_0_kernel_overalign_extern_overalign(i32 %idx) #1 {
 ; CHECK-LABEL: module_0_kernel_overalign_extern_overalign:
 ; CHECK:       ; %bb.0:
-; CHECK-NEXT:    s_load_dword s0, s[4:5], 0x0
+; CHECK-NEXT:    s_load_dword s0, s[4:5], null
 ; CHECK-NEXT:    v_mov_b32_e32 v0, 0
 ; CHECK-NEXT:    v_mov_b32_e32 v1, 2
 ; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
 ; CHECK-NEXT:    s_lshl_b32 s0, s0, 2
 ; CHECK-NEXT:    s_add_i32 s0, s0, 8
 ; CHECK-NEXT:    v_mov_b32_e32 v2, s0
 ; CHECK-NEXT:    ds_write_b16 v0, v1
 ; CHECK-NEXT:    ds_write_b32 v2, v0

 ; CHECK-NEXT:    s_addc_u32 s9, s9, 0
 ; CHECK-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s8
 ; CHECK-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s9
 ; CHECK-NEXT:    s_add_u32 s0, s0, s11
 ; CHECK-NEXT:    s_addc_u32 s1, s1, 0
 ; CHECK-NEXT:    s_getpc_b64 s[8:9]
 ; CHECK-NEXT:    s_add_u32 s8, s8, use_module@gotpcrel32@lo+4
 ; CHECK-NEXT:    s_addc_u32 s9, s9, use_module@gotpcrel32@hi+12
-; CHECK-NEXT:    s_load_dwordx2 s[10:11], s[8:9], 0x0
-; CHECK-NEXT:    s_load_dword s12, s[6:7], 0x0
+; CHECK-NEXT:    s_load_dwordx2 s[10:11], s[8:9], null
+; CHECK-NEXT:    s_load_dword s12, s[6:7], null
 ; CHECK-NEXT:    s_mov_b64 s[6:7], s[4:5]
 ; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
 ; CHECK-NEXT:    s_swappc_b64 s[30:31], s[10:11]
 ; CHECK-NEXT:    s_lshl_b32 s4, s12, 2
 ; CHECK-NEXT:    v_mov_b32_e32 v0, 0
 ; CHECK-NEXT:    v_mov_b32_e32 v1, 1
 ; CHECK-NEXT:    s_add_i32 s4, s4, 8
 ; CHECK-NEXT:    v_mov_b32_e32 v2, 2

llvm/test/CodeGen/AMDGPU/llvm.amdgcn.s.buffer.load.ll

 main_body:
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 4, i32 0)
   %bitcast = bitcast i32 %load to float
   call void @llvm.amdgcn.exp.f32(i32 0, i32 15, float %bitcast, float undef, float undef, float undef, i1 true, i1 true)
   ret void
 }
 
 define amdgpu_ps void @s_buffer_load_index(<4 x i32> inreg %desc, i32 inreg %index) {
-; GFX678910-LABEL: s_buffer_load_index:
-; GFX678910:       ; %bb.0: ; %main_body
-; GFX678910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX678910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX678910-NEXT:    v_mov_b32_e32 v0, s0
-; GFX678910-NEXT:    exp mrt0 v0, v0, v0, v0 done vm
-; GFX678910-NEXT:    s_endpgm
+; GFX678-LABEL: s_buffer_load_index:
+; GFX678:       ; %bb.0: ; %main_body
+; GFX678-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX678-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX678-NEXT:    v_mov_b32_e32 v0, s0
+; GFX678-NEXT:    exp mrt0 v0, v0, v0, v0 done vm
+; GFX678-NEXT:    s_endpgm
+;
+; GFX9-LABEL: s_buffer_load_index:
+; GFX9:       ; %bb.0: ; %main_body
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    v_mov_b32_e32 v0, s0
+; GFX9-NEXT:    exp mrt0 v0, v0, v0, v0 done vm
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: s_buffer_load_index:
+; GFX10:       ; %bb.0: ; %main_body
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    v_mov_b32_e32 v0, s0
+; GFX10-NEXT:    exp mrt0 v0, v0, v0, v0 done vm
+; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: s_buffer_load_index:
 ; GFX11:       ; %bb.0: ; %main_body
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX11-NEXT:    exp mrt0 v0, v0, v0, v0 done
 ; GFX11-NEXT:    s_endpgm
 main_body:
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 %index, i32 0)
   %bitcast = bitcast i32 %load to float
   call void @llvm.amdgcn.exp.f32(i32 0, i32 15, float %bitcast, float undef, float undef, float undef, i1 true, i1 true)
main_body:
   %bitcast = bitcast <2 x i32> %load to <2 x float>
   %x = extractelement <2 x float> %bitcast, i32 0
   %y = extractelement <2 x float> %bitcast, i32 1
   call void @llvm.amdgcn.exp.f32(i32 0, i32 15, float %x, float %y, float undef, float undef, i1 true, i1 true)
   ret void
 }
 
 define amdgpu_ps void @s_buffer_loadx2_index(<4 x i32> inreg %desc, i32 inreg %index) {
-; GFX678910-LABEL: s_buffer_loadx2_index:
-; GFX678910:       ; %bb.0: ; %main_body
-; GFX678910-NEXT:    s_buffer_load_dwordx2 s[0:1], s[0:3], s4
-; GFX678910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX678910-NEXT:    v_mov_b32_e32 v0, s0
-; GFX678910-NEXT:    v_mov_b32_e32 v1, s1
-; GFX678910-NEXT:    exp mrt0 v0, v1, v0, v0 done vm
-; GFX678910-NEXT:    s_endpgm
+; GFX678-LABEL: s_buffer_loadx2_index:
+; GFX678:       ; %bb.0: ; %main_body
+; GFX678-NEXT:    s_buffer_load_dwordx2 s[0:1], s[0:3], s4
+; GFX678-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX678-NEXT:    v_mov_b32_e32 v0, s0
+; GFX678-NEXT:    v_mov_b32_e32 v1, s1
+; GFX678-NEXT:    exp mrt0 v0, v1, v0, v0 done vm
+; GFX678-NEXT:    s_endpgm
+;
+; GFX9-LABEL: s_buffer_loadx2_index:
+; GFX9:       ; %bb.0: ; %main_body
+; GFX9-NEXT:    s_buffer_load_dwordx2 s[0:1], s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    v_mov_b32_e32 v0, s0
+; GFX9-NEXT:    v_mov_b32_e32 v1, s1
+; GFX9-NEXT:    exp mrt0 v0, v1, v0, v0 done vm
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: s_buffer_loadx2_index:
+; GFX10:       ; %bb.0: ; %main_body
+; GFX10-NEXT:    s_buffer_load_dwordx2 s[0:1], s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    v_mov_b32_e32 v0, s0
+; GFX10-NEXT:    v_mov_b32_e32 v1, s1
+; GFX10-NEXT:    exp mrt0 v0, v1, v0, v0 done vm
+; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: s_buffer_loadx2_index:
 ; GFX11:       ; %bb.0: ; %main_body
-; GFX11-NEXT:    s_buffer_load_b64 s[0:1], s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b64 s[0:1], s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX11-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX11-NEXT:    exp mrt0 v0, v1, v0, v0 done
 ; GFX11-NEXT:    s_endpgm
 main_body:
   %load = call <2 x i32> @llvm.amdgcn.s.buffer.load.v2i32(<4 x i32> %desc, i32 %index, i32 0)
   %bitcast = bitcast <2 x i32> %load to <2 x float>
main_body:
   %x = extractelement <3 x float> %bitcast, i32 0
   %y = extractelement <3 x float> %bitcast, i32 1
   %z = extractelement <3 x float> %bitcast, i32 2
   call void @llvm.amdgcn.exp.f32(i32 0, i32 15, float %x, float %y, float %z, float undef, i1 true, i1 true)
   ret void
 }
 
 define amdgpu_ps void @s_buffer_loadx3_index(<4 x i32> inreg %desc, i32 inreg %index) {
-; GFX678910-LABEL: s_buffer_loadx3_index:
-; GFX678910:       ; %bb.0: ; %main_body
-; GFX678910-NEXT:    s_buffer_load_dwordx4 s[0:3], s[0:3], s4
-; GFX678910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX678910-NEXT:    v_mov_b32_e32 v0, s0
-; GFX678910-NEXT:    v_mov_b32_e32 v1, s1
-; GFX678910-NEXT:    v_mov_b32_e32 v2, s2
-; GFX678910-NEXT:    exp mrt0 v0, v1, v2, v0 done vm
-; GFX678910-NEXT:    s_endpgm
+; GFX678-LABEL: s_buffer_loadx3_index:
+; GFX678:       ; %bb.0: ; %main_body
+; GFX678-NEXT:    s_buffer_load_dwordx4 s[0:3], s[0:3], s4
+; GFX678-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX678-NEXT:    v_mov_b32_e32 v0, s0
+; GFX678-NEXT:    v_mov_b32_e32 v1, s1
+; GFX678-NEXT:    v_mov_b32_e32 v2, s2
+; GFX678-NEXT:    exp mrt0 v0, v1, v2, v0 done vm
+; GFX678-NEXT:    s_endpgm
+;
+; GFX9-LABEL: s_buffer_loadx3_index:
+; GFX9:       ; %bb.0: ; %main_body
+; GFX9-NEXT:    s_buffer_load_dwordx4 s[0:3], s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    v_mov_b32_e32 v0, s0
+; GFX9-NEXT:    v_mov_b32_e32 v1, s1
+; GFX9-NEXT:    v_mov_b32_e32 v2, s2
+; GFX9-NEXT:    exp mrt0 v0, v1, v2, v0 done vm
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: s_buffer_loadx3_index:
+; GFX10:       ; %bb.0: ; %main_body
+; GFX10-NEXT:    s_buffer_load_dwordx4 s[0:3], s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    v_mov_b32_e32 v0, s0
+; GFX10-NEXT:    v_mov_b32_e32 v1, s1
+; GFX10-NEXT:    v_mov_b32_e32 v2, s2
+; GFX10-NEXT:    exp mrt0 v0, v1, v2, v0 done vm
+; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: s_buffer_loadx3_index:
 ; GFX11:       ; %bb.0: ; %main_body
-; GFX11-NEXT:    s_buffer_load_b128 s[0:3], s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b128 s[0:3], s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX11-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX11-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX11-NEXT:    exp mrt0 v0, v1, v2, v0 done
 ; GFX11-NEXT:    s_endpgm
 main_body:
   %load = call <3 x i32> @llvm.amdgcn.s.buffer.load.v3i32(<4 x i32> %desc, i32 %index, i32 0)
main_body:
   %y = extractelement <4 x float> %bitcast, i32 1
   %z = extractelement <4 x float> %bitcast, i32 2
   %w = extractelement <4 x float> %bitcast, i32 3
   call void @llvm.amdgcn.exp.f32(i32 0, i32 15, float %x, float %y, float %z, float %w, i1 true, i1 true)
   ret void
 }
 
 define amdgpu_ps void @s_buffer_loadx4_index(<4 x i32> inreg %desc, i32 inreg %index) {
-; GFX678910-LABEL: s_buffer_loadx4_index:
-; GFX678910:       ; %bb.0: ; %main_body
-; GFX678910-NEXT:    s_buffer_load_dwordx4 s[0:3], s[0:3], s4
-; GFX678910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX678910-NEXT:    v_mov_b32_e32 v0, s0
-; GFX678910-NEXT:    v_mov_b32_e32 v1, s1
-; GFX678910-NEXT:    v_mov_b32_e32 v2, s2
-; GFX678910-NEXT:    v_mov_b32_e32 v3, s3
-; GFX678910-NEXT:    exp mrt0 v0, v1, v2, v3 done vm
-; GFX678910-NEXT:    s_endpgm
+; GFX678-LABEL: s_buffer_loadx4_index:
+; GFX678:       ; %bb.0: ; %main_body
+; GFX678-NEXT:    s_buffer_load_dwordx4 s[0:3], s[0:3], s4
+; GFX678-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX678-NEXT:    v_mov_b32_e32 v0, s0
+; GFX678-NEXT:    v_mov_b32_e32 v1, s1
+; GFX678-NEXT:    v_mov_b32_e32 v2, s2
+; GFX678-NEXT:    v_mov_b32_e32 v3, s3
+; GFX678-NEXT:    exp mrt0 v0, v1, v2, v3 done vm
+; GFX678-NEXT:    s_endpgm
+;
+; GFX9-LABEL: s_buffer_loadx4_index:
+; GFX9:       ; %bb.0: ; %main_body
+; GFX9-NEXT:    s_buffer_load_dwordx4 s[0:3], s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    v_mov_b32_e32 v0, s0
+; GFX9-NEXT:    v_mov_b32_e32 v1, s1
+; GFX9-NEXT:    v_mov_b32_e32 v2, s2
+; GFX9-NEXT:    v_mov_b32_e32 v3, s3
+; GFX9-NEXT:    exp mrt0 v0, v1, v2, v3 done vm
+; GFX9-NEXT:    s_endpgm
+;
+; GFX10-LABEL: s_buffer_loadx4_index:
+; GFX10:       ; %bb.0: ; %main_body
+; GFX10-NEXT:    s_buffer_load_dwordx4 s[0:3], s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    v_mov_b32_e32 v0, s0
+; GFX10-NEXT:    v_mov_b32_e32 v1, s1
+; GFX10-NEXT:    v_mov_b32_e32 v2, s2
+; GFX10-NEXT:    v_mov_b32_e32 v3, s3
+; GFX10-NEXT:    exp mrt0 v0, v1, v2, v3 done vm
+; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: s_buffer_loadx4_index:
 ; GFX11:       ; %bb.0: ; %main_body
-; GFX11-NEXT:    s_buffer_load_b128 s[0:3], s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b128 s[0:3], s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX11-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX11-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX11-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX11-NEXT:    exp mrt0 v0, v1, v2, v3 done
 ; GFX11-NEXT:    s_endpgm
 main_body:

 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: s_buffer_load_index_across_bb:
 ; GFX10:       ; %bb.0: ; %main_body
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, gv@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, gv@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 4, v0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    global_store_dword v1, v0, s[4:5]
 ; GFX10-NEXT:    v_or_b32_e32 v0, 8, v0
 ; GFX10-NEXT:    buffer_load_dword v0, v0, s[0:3], 0 offen
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    exp mrt0 v0, v0, v0, v0 done vm
 ; GFX10-NEXT:    s_endpgm

 ; GFX6-LABEL: s_buffer_load_imm_neg1:
 ; GFX6:       ; %bb.0:
 ; GFX6-NEXT:    s_mov_b32 s4, -1
 ; GFX6-NEXT:    s_nop 3
 ; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], s4
 ; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX6-NEXT:    ; return to shader part epilog
 ;
-; GFX78910-LABEL: s_buffer_load_imm_neg1:
-; GFX78910:       ; %bb.0:
-; GFX78910-NEXT:    s_mov_b32 s4, -1
-; GFX78910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX78910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX78910-NEXT:    ; return to shader part epilog
+; GFX78-LABEL: s_buffer_load_imm_neg1:
+; GFX78:       ; %bb.0:
+; GFX78-NEXT:    s_mov_b32 s4, -1
+; GFX78-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX78-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX78-NEXT:    ; return to shader part epilog
+;
+; GFX9-LABEL: s_buffer_load_imm_neg1:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_mov_b32 s4, -1
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    ; return to shader part epilog
+;
+; GFX10-LABEL: s_buffer_load_imm_neg1:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_mov_b32 s4, -1
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: s_buffer_load_imm_neg1:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_mov_b32 s4, -1
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 -1, i32 0)
   ret i32 %load
 }
 
 define amdgpu_ps i32 @s_buffer_load_imm_neg4(<4 x i32> inreg %desc) {
 ; GFX6-LABEL: s_buffer_load_imm_neg4:
 ; GFX6:       ; %bb.0:
 ; GFX6-NEXT:    s_mov_b32 s4, -4
 ; GFX6-NEXT:    s_nop 3
 ; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], s4
 ; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX6-NEXT:    ; return to shader part epilog
 ;
 ; GFX7-LABEL: s_buffer_load_imm_neg4:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_buffer_load_dword s0, s[0:3], 0x3fffffff
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
-; GFX8910-LABEL: s_buffer_load_imm_neg4:
-; GFX8910:       ; %bb.0:
-; GFX8910-NEXT:    s_mov_b32 s4, -4
-; GFX8910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX8910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8910-NEXT:    ; return to shader part epilog
+; GFX8-LABEL: s_buffer_load_imm_neg4:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_mov_b32 s4, -4
+; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    ; return to shader part epilog
+;
+; GFX9-LABEL: s_buffer_load_imm_neg4:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_mov_b32 s4, -4
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    ; return to shader part epilog
+;
+; GFX10-LABEL: s_buffer_load_imm_neg4:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_mov_b32 s4, -4
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: s_buffer_load_imm_neg4:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_mov_b32 s4, -4
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 -4, i32 0)
   ret i32 %load
 }
 
 define amdgpu_ps i32 @s_buffer_load_imm_neg8(<4 x i32> inreg %desc) {
 ; GFX6-LABEL: s_buffer_load_imm_neg8:
 ; GFX6:       ; %bb.0:
 ; GFX6-NEXT:    s_mov_b32 s4, -8
 ; GFX6-NEXT:    s_nop 3
 ; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], s4
 ; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX6-NEXT:    ; return to shader part epilog
 ;
 ; GFX7-LABEL: s_buffer_load_imm_neg8:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_buffer_load_dword s0, s[0:3], 0x3ffffffe
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
-; GFX8910-LABEL: s_buffer_load_imm_neg8:
-; GFX8910:       ; %bb.0:
-; GFX8910-NEXT:    s_mov_b32 s4, -8
-; GFX8910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX8910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8910-NEXT:    ; return to shader part epilog
+; GFX8-LABEL: s_buffer_load_imm_neg8:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_mov_b32 s4, -8
+; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    ; return to shader part epilog
+;
+; GFX9-LABEL: s_buffer_load_imm_neg8:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_mov_b32 s4, -8
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    ; return to shader part epilog
+;
+; GFX10-LABEL: s_buffer_load_imm_neg8:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_mov_b32 s4, -8
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: s_buffer_load_imm_neg8:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_mov_b32 s4, -8
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 -8, i32 0)
   ret i32 %load
 }
 
 define amdgpu_ps i32 @s_buffer_load_imm_bit31(<4 x i32> inreg %desc) {
 ; GFX6-LABEL: s_buffer_load_imm_bit31:
 ; GFX6:       ; %bb.0:
 ; GFX6-NEXT:    s_brev_b32 s4, 1
 ; GFX6-NEXT:    s_nop 3
 ; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], s4
 ; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX6-NEXT:    ; return to shader part epilog
 ;
 ; GFX7-LABEL: s_buffer_load_imm_bit31:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_buffer_load_dword s0, s[0:3], 0x20000000
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
-; GFX8910-LABEL: s_buffer_load_imm_bit31:
-; GFX8910:       ; %bb.0:
-; GFX8910-NEXT:    s_brev_b32 s4, 1
-; GFX8910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX8910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8910-NEXT:    ; return to shader part epilog
+; GFX8-LABEL: s_buffer_load_imm_bit31:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_brev_b32 s4, 1
+; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    ; return to shader part epilog
+;
+; GFX9-LABEL: s_buffer_load_imm_bit31:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_brev_b32 s4, 1
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    ; return to shader part epilog
+;
+; GFX10-LABEL: s_buffer_load_imm_bit31:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_brev_b32 s4, 1
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: s_buffer_load_imm_bit31:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_brev_b32 s4, 1
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 -2147483648, i32 0)
   ret i32 %load
 }
 
 define amdgpu_ps i32 @s_buffer_load_imm_bit30(<4 x i32> inreg %desc) {
 ; GFX6-LABEL: s_buffer_load_imm_bit30:
 ; GFX6:       ; %bb.0:
 ; GFX6-NEXT:    s_mov_b32 s4, 2.0
 ; GFX6-NEXT:    s_nop 3
 ; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], s4
 ; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX6-NEXT:    ; return to shader part epilog
 ;
 ; GFX7-LABEL: s_buffer_load_imm_bit30:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_buffer_load_dword s0, s[0:3], 0x10000000
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
-; GFX8910-LABEL: s_buffer_load_imm_bit30:
-; GFX8910:       ; %bb.0:
-; GFX8910-NEXT:    s_mov_b32 s4, 2.0
-; GFX8910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX8910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8910-NEXT:    ; return to shader part epilog
+; GFX8-LABEL: s_buffer_load_imm_bit30:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_mov_b32 s4, 2.0
+; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    ; return to shader part epilog
+;
+; GFX9-LABEL: s_buffer_load_imm_bit30:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_mov_b32 s4, 2.0
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    ; return to shader part epilog
+;
+; GFX10-LABEL: s_buffer_load_imm_bit30:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_mov_b32 s4, 2.0
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: s_buffer_load_imm_bit30:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_mov_b32 s4, 2.0
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 1073741824, i32 0)
   ret i32 %load
 }
 
 define amdgpu_ps i32 @s_buffer_load_imm_bit29(<4 x i32> inreg %desc) {
 ; GFX6-LABEL: s_buffer_load_imm_bit29:
 ; GFX6:       ; %bb.0:
 ; GFX6-NEXT:    s_brev_b32 s4, 4
 ; GFX6-NEXT:    s_nop 3
 ; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], s4
 ; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX6-NEXT:    ; return to shader part epilog
 ;
 ; GFX7-LABEL: s_buffer_load_imm_bit29:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_buffer_load_dword s0, s[0:3], 0x8000000
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
-; GFX8910-LABEL: s_buffer_load_imm_bit29:
-; GFX8910:       ; %bb.0:
-; GFX8910-NEXT:    s_brev_b32 s4, 4
-; GFX8910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX8910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8910-NEXT:    ; return to shader part epilog
+; GFX8-LABEL: s_buffer_load_imm_bit29:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_brev_b32 s4, 4
+; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    ; return to shader part epilog
+;
+; GFX9-LABEL: s_buffer_load_imm_bit29:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_brev_b32 s4, 4
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    ; return to shader part epilog
+;
+; GFX10-LABEL: s_buffer_load_imm_bit29:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_brev_b32 s4, 4
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: s_buffer_load_imm_bit29:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_brev_b32 s4, 4
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 536870912, i32 0)
   ret i32 %load
 }
 
 define amdgpu_ps i32 @s_buffer_load_imm_bit21(<4 x i32> inreg %desc) {
 ; GFX6-LABEL: s_buffer_load_imm_bit21:
 ; GFX6:       ; %bb.0:
 ; GFX6-NEXT:    s_mov_b32 s4, 0x200000
 ; GFX6-NEXT:    s_nop 3
 ; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], s4
 ; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX6-NEXT:    ; return to shader part epilog
 ;
 ; GFX7-LABEL: s_buffer_load_imm_bit21:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_buffer_load_dword s0, s[0:3], 0x80000
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
-; GFX8910-LABEL: s_buffer_load_imm_bit21:
-; GFX8910:       ; %bb.0:
-; GFX8910-NEXT:    s_mov_b32 s4, 0x200000
-; GFX8910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX8910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8910-NEXT:    ; return to shader part epilog
+; GFX8-LABEL: s_buffer_load_imm_bit21:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_mov_b32 s4, 0x200000
+; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    ; return to shader part epilog
+;
+; GFX9-LABEL: s_buffer_load_imm_bit21:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_mov_b32 s4, 0x200000
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    ; return to shader part epilog
+;
+; GFX10-LABEL: s_buffer_load_imm_bit21:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_mov_b32 s4, 0x200000
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: s_buffer_load_imm_bit21:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_mov_b32 s4, 0x200000
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 2097152, i32 0)
   ret i32 %load
 }
 
 define amdgpu_ps i32 @s_buffer_load_imm_bit20(<4 x i32> inreg %desc) {
 ; GFX6-LABEL: s_buffer_load_imm_bit20:
 ; GFX6:       ; %bb.0:
 ; GFX6-NEXT:    s_mov_b32 s4, 0x100000
 ; GFX6-NEXT:    s_nop 3
 ; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], s4
 ; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX6-NEXT:    ; return to shader part epilog
 ;
 ; GFX7-LABEL: s_buffer_load_imm_bit20:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_buffer_load_dword s0, s[0:3], 0x40000
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
-; GFX8910-LABEL: s_buffer_load_imm_bit20:
-; GFX8910:       ; %bb.0:
-; GFX8910-NEXT:    s_mov_b32 s4, 0x100000
-; GFX8910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX8910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8910-NEXT:    ; return to shader part epilog
+; GFX8-LABEL: s_buffer_load_imm_bit20:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_mov_b32 s4, 0x100000
+; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    ; return to shader part epilog
+;
+; GFX9-LABEL: s_buffer_load_imm_bit20:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_mov_b32 s4, 0x100000
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    ; return to shader part epilog
+;
+; GFX10-LABEL: s_buffer_load_imm_bit20:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_mov_b32 s4, 0x100000
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: s_buffer_load_imm_bit20:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_mov_b32 s4, 0x100000
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 1048576, i32 0)
   ret i32 %load
 }
 
 define amdgpu_ps i32 @s_buffer_load_imm_neg_bit20(<4 x i32> inreg %desc) {
 ; GFX6-LABEL: s_buffer_load_imm_neg_bit20:
 ; GFX6:       ; %bb.0:
 ; GFX6-NEXT:    s_mov_b32 s4, 0xfff00000
 ; GFX6-NEXT:    s_nop 3
 ; GFX6-NEXT:    s_buffer_load_dword s0, s[0:3], s4
 ; GFX6-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX6-NEXT:    ; return to shader part epilog
 ;
 ; GFX7-LABEL: s_buffer_load_imm_neg_bit20:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_buffer_load_dword s0, s[0:3], 0x3ffc0000
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
-; GFX8910-LABEL: s_buffer_load_imm_neg_bit20:
-; GFX8910:       ; %bb.0:
-; GFX8910-NEXT:    s_mov_b32 s4, 0xfff00000
-; GFX8910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX8910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8910-NEXT:    ; return to shader part epilog
+; GFX8-LABEL: s_buffer_load_imm_neg_bit20:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_mov_b32 s4, 0xfff00000
+; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    ; return to shader part epilog
+;
+; GFX9-LABEL: s_buffer_load_imm_neg_bit20:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_mov_b32 s4, 0xfff00000
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    ; return to shader part epilog
+;
+; GFX10-LABEL: s_buffer_load_imm_neg_bit20:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_mov_b32 s4, 0xfff00000
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: s_buffer_load_imm_neg_bit20:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_mov_b32 s4, 0xfff00000
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32  -1048576, i32 0)
   ret i32 %load
 }
 
 define amdgpu_ps i32 @s_buffer_load_imm_bit19(<4 x i32> inreg %desc) {
 ; GFX6-LABEL: s_buffer_load_imm_bit19:

 ; GFX6-NEXT:    ; return to shader part epilog
 ;
 ; GFX7-LABEL: s_buffer_load_imm_neg_bit19:
 ; GFX7:       ; %bb.0:
 ; GFX7-NEXT:    s_buffer_load_dword s0, s[0:3], 0x3ffe0000
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ; return to shader part epilog
 ;
-; GFX8910-LABEL: s_buffer_load_imm_neg_bit19:
-; GFX8910:       ; %bb.0:
-; GFX8910-NEXT:    s_mov_b32 s4, 0xfff80000
-; GFX8910-NEXT:    s_buffer_load_dword s0, s[0:3], s4
-; GFX8910-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX8910-NEXT:    ; return to shader part epilog
+; GFX8-LABEL: s_buffer_load_imm_neg_bit19:
+; GFX8:       ; %bb.0:
+; GFX8-NEXT:    s_mov_b32 s4, 0xfff80000
+; GFX8-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX8-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX8-NEXT:    ; return to shader part epilog
+;
+; GFX9-LABEL: s_buffer_load_imm_neg_bit19:
+; GFX9:       ; %bb.0:
+; GFX9-NEXT:    s_mov_b32 s4, 0xfff80000
+; GFX9-NEXT:    s_buffer_load_dword s0, s[0:3], s4 offset:0x0
+; GFX9-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX9-NEXT:    ; return to shader part epilog
+;
+; GFX10-LABEL: s_buffer_load_imm_neg_bit19:
+; GFX10:       ; %bb.0:
+; GFX10-NEXT:    s_mov_b32 s4, 0xfff80000
+; GFX10-NEXT:    s_buffer_load_dword s0, s[0:3], s4
+; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX10-NEXT:    ; return to shader part epilog
 ;
 ; GFX11-LABEL: s_buffer_load_imm_neg_bit19:
 ; GFX11:       ; %bb.0:
 ; GFX11-NEXT:    s_mov_b32 s4, 0xfff80000
-; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4
+; GFX11-NEXT:    s_buffer_load_b32 s0, s[0:3], s4 offset:0x0
 ; GFX11-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX11-NEXT:    ; return to shader part epilog
   %load = call i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32> %desc, i32 -524288, i32 0)
   ret i32 %load
 }
 
 define amdgpu_ps i32 @s_buffer_load_imm_255(<4 x i32> inreg %desc) {
 ; GFX6-LABEL: s_buffer_load_imm_255:

 
 declare void @llvm.amdgcn.exp.f32(i32, i32, float, float, float, float, i1, i1)
 declare i32 @llvm.amdgcn.s.buffer.load.i32(<4 x i32>, i32, i32)
 declare <2 x i32> @llvm.amdgcn.s.buffer.load.v2i32(<4 x i32>, i32, i32)
 declare <3 x i32> @llvm.amdgcn.s.buffer.load.v3i32(<4 x i32>, i32, i32)
 declare <4 x i32> @llvm.amdgcn.s.buffer.load.v4i32(<4 x i32>, i32, i32)
 
 ;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
-; GFX678: {{.*}}
 ; GFX6789: {{.*}}
-; GFX78: {{.*}}
 ; GFX789: {{.*}}
 ; GFX89: {{.*}}
 ; GFX910: {{.*}}

llvm/test/CodeGen/AMDGPU/llvm.amdgcn.struct.tbuffer.store.d16.ll

 ; PREGFX10-PACKED-NEXT:    v_mov_b32_e32 v1, s7
 ; PREGFX10-PACKED-NEXT:    tbuffer_store_format_d16_x v0, v1, s[0:3], 0 format:[BUF_NUM_FORMAT_USCALED] idxen
 ; PREGFX10-PACKED-NEXT:    s_endpgm
 ;
 ; GFX10-PACKED-LABEL: tbuffer_store_d16_x:
 ; GFX10-PACKED:       ; %bb.0: ; %main_body
 ; GFX10-PACKED-NEXT:    s_clause 0x1
 ; GFX10-PACKED-NEXT:    s_load_dwordx2 s[6:7], s[4:5], 0x10
-; GFX10-PACKED-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-PACKED-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-PACKED-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PACKED-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX10-PACKED-NEXT:    v_mov_b32_e32 v1, s7
 ; GFX10-PACKED-NEXT:    tbuffer_store_format_d16_x v0, v1, s[0:3], 0 format:[BUF_FMT_10_11_11_SSCALED] idxen
 ; GFX10-PACKED-NEXT:    s_endpgm
 ;
 ; GFX11-PACKED-LABEL: tbuffer_store_d16_x:
 ; GFX11-PACKED:       ; %bb.0: ; %main_body

 ; PREGFX10-PACKED-NEXT:    v_mov_b32_e32 v1, s7
 ; PREGFX10-PACKED-NEXT:    tbuffer_store_format_d16_xy v0, v1, s[0:3], 0 format:[BUF_NUM_FORMAT_USCALED] idxen
 ; PREGFX10-PACKED-NEXT:    s_endpgm
 ;
 ; GFX10-PACKED-LABEL: tbuffer_store_d16_xy:
 ; GFX10-PACKED:       ; %bb.0: ; %main_body
 ; GFX10-PACKED-NEXT:    s_clause 0x1
 ; GFX10-PACKED-NEXT:    s_load_dwordx2 s[6:7], s[4:5], 0x10
-; GFX10-PACKED-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-PACKED-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-PACKED-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PACKED-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX10-PACKED-NEXT:    v_mov_b32_e32 v1, s7
 ; GFX10-PACKED-NEXT:    tbuffer_store_format_d16_xy v0, v1, s[0:3], 0 format:[BUF_FMT_10_11_11_SSCALED] idxen
 ; GFX10-PACKED-NEXT:    s_endpgm
 ;
 ; GFX11-PACKED-LABEL: tbuffer_store_d16_xy:
 ; GFX11-PACKED:       ; %bb.0: ; %main_body

 ; PREGFX10-PACKED-NEXT:    tbuffer_store_format_d16_xyz v[0:1], v2, s[0:3], 0 format:[BUF_NUM_FORMAT_USCALED] idxen
 ; PREGFX10-PACKED-NEXT:    s_endpgm
 ;
 ; GFX10-PACKED-LABEL: tbuffer_store_d16_xyz:
 ; GFX10-PACKED:       ; %bb.0: ; %main_body
 ; GFX10-PACKED-NEXT:    s_clause 0x2
 ; GFX10-PACKED-NEXT:    s_load_dwordx2 s[6:7], s[4:5], 0x10
 ; GFX10-PACKED-NEXT:    s_load_dword s8, s[4:5], 0x18
-; GFX10-PACKED-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-PACKED-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-PACKED-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PACKED-NEXT:    s_and_b32 s4, s7, 0xffff
 ; GFX10-PACKED-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX10-PACKED-NEXT:    v_mov_b32_e32 v1, s4
 ; GFX10-PACKED-NEXT:    v_mov_b32_e32 v2, s8
 ; GFX10-PACKED-NEXT:    tbuffer_store_format_d16_xyz v[0:1], v2, s[0:3], 0 format:[BUF_FMT_10_11_11_SSCALED] idxen
 ; GFX10-PACKED-NEXT:    s_endpgm
 ;

 ; PREGFX10-PACKED-NEXT:    tbuffer_store_format_d16_xyzw v[0:1], v2, s[0:3], 0 format:[BUF_NUM_FORMAT_USCALED] idxen
 ; PREGFX10-PACKED-NEXT:    s_endpgm
 ;
 ; GFX10-PACKED-LABEL: tbuffer_store_d16_xyzw:
 ; GFX10-PACKED:       ; %bb.0: ; %main_body
 ; GFX10-PACKED-NEXT:    s_clause 0x2
 ; GFX10-PACKED-NEXT:    s_load_dwordx2 s[6:7], s[4:5], 0x10
 ; GFX10-PACKED-NEXT:    s_load_dword s8, s[4:5], 0x18
-; GFX10-PACKED-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-PACKED-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-PACKED-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-PACKED-NEXT:    v_mov_b32_e32 v0, s6
 ; GFX10-PACKED-NEXT:    v_mov_b32_e32 v1, s7
 ; GFX10-PACKED-NEXT:    v_mov_b32_e32 v2, s8
 ; GFX10-PACKED-NEXT:    tbuffer_store_format_d16_xyzw v[0:1], v2, s[0:3], 0 format:[BUF_FMT_10_11_11_SSCALED] idxen
 ; GFX10-PACKED-NEXT:    s_endpgm
 ;
 ; GFX11-PACKED-LABEL: tbuffer_store_d16_xyzw:

llvm/test/CodeGen/AMDGPU/llvm.maxnum.f16.ll

 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: maxnum_v2f16:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
-; GFX10-NEXT:    s_load_dword s1, s[6:7], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
+; GFX10-NEXT:    s_load_dword s1, s[6:7], null
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000
 ; GFX10-NEXT:    s_mov_b32 s6, -1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v0, s0, s0
 ; GFX10-NEXT:    v_pk_max_f16 v1, s1, s1
 ; GFX10-NEXT:    v_pk_max_f16 v0, v1, v0
 ; GFX10-NEXT:    buffer_store_dword v0, off, s[4:7], 0
 ; GFX10-NEXT:    s_endpgm

 ; GFX9-NEXT:    v_pk_max_f16 v0, v0, s4
 ; GFX9-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: maxnum_v2f16_imm_a:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v0, s2, s2
 ; GFX10-NEXT:    s_mov_b32 s2, -1
 ; GFX10-NEXT:    v_pk_max_f16 v0, 0x44004200, v0
 ; GFX10-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX10-NEXT:    s_endpgm
 ;

 ; GFX9-NEXT:    v_pk_max_f16 v0, v0, s4
 ; GFX9-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: maxnum_v2f16_imm_b:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v0, s2, s2
 ; GFX10-NEXT:    s_mov_b32 s2, -1
 ; GFX10-NEXT:    v_pk_max_f16 v0, 0x42004400, v0
 ; GFX10-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX10-NEXT:    s_endpgm
 ;

 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: maxnum_v3f16:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
-; GFX10-NEXT:    s_load_dwordx2 s[8:9], s[6:7], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
+; GFX10-NEXT:    s_load_dwordx2 s[8:9], s[6:7], null
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000
 ; GFX10-NEXT:    s_mov_b32 s6, -1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v1, s1, s1
 ; GFX10-NEXT:    v_pk_max_f16 v2, s9, s9
 ; GFX10-NEXT:    v_pk_max_f16 v0, s0, s0
 ; GFX10-NEXT:    v_pk_max_f16 v3, s8, s8
 ; GFX10-NEXT:    v_pk_max_f16 v1, v2, v1

 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: maxnum_v4f16:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
-; GFX10-NEXT:    s_load_dwordx2 s[8:9], s[6:7], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
+; GFX10-NEXT:    s_load_dwordx2 s[8:9], s[6:7], null
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000
 ; GFX10-NEXT:    s_mov_b32 s6, -1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v0, s1, s1
 ; GFX10-NEXT:    v_pk_max_f16 v1, s9, s9
 ; GFX10-NEXT:    v_pk_max_f16 v2, s0, s0
 ; GFX10-NEXT:    v_pk_max_f16 v3, s8, s8
 ; GFX10-NEXT:    v_pk_max_f16 v1, v1, v0

 ; GFX9-NEXT:    v_pk_max_f16 v0, v2, s9
 ; GFX9-NEXT:    buffer_store_dwordx2 v[0:1], off, s[4:7], 0
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: fmax_v4f16_imm_a:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v0, s3, s3
 ; GFX10-NEXT:    v_pk_max_f16 v2, s2, s2
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX10-NEXT:    s_mov_b32 s2, -1
 ; GFX10-NEXT:    v_pk_max_f16 v1, 0x44004200, v0
 ; GFX10-NEXT:    v_pk_max_f16 v0, 0x40004800, v2
 ; GFX10-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0

llvm/test/CodeGen/AMDGPU/llvm.minnum.f16.ll

 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: minnum_v2f16_ieee:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s0, s[2:3], 0x0
-; GFX10-NEXT:    s_load_dword s1, s[6:7], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[2:3], null
+; GFX10-NEXT:    s_load_dword s1, s[6:7], null
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000
 ; GFX10-NEXT:    s_mov_b32 s6, -1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v0, s0, s0
 ; GFX10-NEXT:    v_pk_max_f16 v1, s1, s1
 ; GFX10-NEXT:    v_pk_min_f16 v0, v1, v0
 ; GFX10-NEXT:    buffer_store_dword v0, off, s[4:7], 0
 ; GFX10-NEXT:    s_endpgm

 ; GFX9-NEXT:    v_pk_min_f16 v0, v0, s4
 ; GFX9-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: minnum_v2f16_imm_a:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v0, s2, s2
 ; GFX10-NEXT:    s_mov_b32 s2, -1
 ; GFX10-NEXT:    v_pk_min_f16 v0, 0x44004200, v0
 ; GFX10-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX10-NEXT:    s_endpgm
 ;

 ; GFX9-NEXT:    v_pk_min_f16 v0, v0, s4
 ; GFX9-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: minnum_v2f16_imm_b:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s2, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[2:3], null
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v0, s2, s2
 ; GFX10-NEXT:    s_mov_b32 s2, -1
 ; GFX10-NEXT:    v_pk_min_f16 v0, 0x42004400, v0
 ; GFX10-NEXT:    buffer_store_dword v0, off, s[0:3], 0
 ; GFX10-NEXT:    s_endpgm
 ;

 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: minnum_v3f16:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
-; GFX10-NEXT:    s_load_dwordx2 s[8:9], s[6:7], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
+; GFX10-NEXT:    s_load_dwordx2 s[8:9], s[6:7], null
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000
 ; GFX10-NEXT:    s_mov_b32 s6, -1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v1, s1, s1
 ; GFX10-NEXT:    v_pk_max_f16 v2, s9, s9
 ; GFX10-NEXT:    v_pk_max_f16 v0, s0, s0
 ; GFX10-NEXT:    v_pk_max_f16 v3, s8, s8
 ; GFX10-NEXT:    v_pk_min_f16 v1, v2, v1

 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: minnum_v4f16:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], 0x0
-; GFX10-NEXT:    s_load_dwordx2 s[8:9], s[6:7], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[2:3], null
+; GFX10-NEXT:    s_load_dwordx2 s[8:9], s[6:7], null
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000
 ; GFX10-NEXT:    s_mov_b32 s6, -1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v0, s1, s1
 ; GFX10-NEXT:    v_pk_max_f16 v1, s9, s9
 ; GFX10-NEXT:    v_pk_max_f16 v2, s0, s0
 ; GFX10-NEXT:    v_pk_max_f16 v3, s8, s8
 ; GFX10-NEXT:    v_pk_min_f16 v1, v1, v0

 ; GFX9-NEXT:    v_pk_min_f16 v0, v2, s9
 ; GFX9-NEXT:    buffer_store_dwordx2 v[0:1], off, s[4:7], 0
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: fmin_v4f16_imm_a:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_max_f16 v0, s3, s3
 ; GFX10-NEXT:    v_pk_max_f16 v2, s2, s2
 ; GFX10-NEXT:    s_mov_b32 s3, 0x31016000
 ; GFX10-NEXT:    s_mov_b32 s2, -1
 ; GFX10-NEXT:    v_pk_min_f16 v1, 0x44004200, v0
 ; GFX10-NEXT:    v_pk_min_f16 v0, 0x40004800, v2
 ; GFX10-NEXT:    buffer_store_dwordx2 v[0:1], off, s[0:3], 0

llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-agent.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_agent_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_agent_monotonic_store:

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_agent_one_as_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_agent_one_as_monotonic_store:

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_agent_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_agent_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-nontemporal.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_nontemporal_load_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] slc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_nontemporal_load_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] slc
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_nontemporal_load_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_add_co_u32 v0, s0, s0, v0
 ; GFX10-WGP-NEXT:    v_add_co_ci_u32_e64 v1, s0, s1, 0, s0
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] slc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_nontemporal_load_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_add_co_u32 v0, s0, s0, v0
 ; GFX10-CU-NEXT:    v_add_co_ci_u32_e64 v1, s0, s1, 0, s0
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] slc
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2 glc slc
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_nontemporal_store_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2 glc slc
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_nontemporal_store_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2 glc slc

 ; GFX7-NEXT:    v_add_i32_e32 v0, vcc, s2, v0
 ; GFX7-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2 glc slc
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_nontemporal_store_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    v_add_co_u32 v0, s0, s2, v0
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[1:2]
 ; GFX10-WGP-NEXT:    v_add_co_ci_u32_e64 v1, s0, s3, 0, s0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2 glc slc
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_nontemporal_store_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    v_add_co_u32 v0, s0, s2, v0
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[1:2]
 ; GFX10-CU-NEXT:    v_add_co_ci_u32_e64 v1, s0, s3, 0, s0
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-singlethread.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_singlethread_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_singlethread_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_singlethread_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_singlethread_seq_cst_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_singlethread_one_as_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_singlethread_one_as_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_singlethread_one_as_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_singlethread_one_as_seq_cst_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_singlethread_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_singlethread_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-system.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_system_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_system_monotonic_store:

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_system_one_as_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_system_one_as_monotonic_store:

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_system_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_system_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-volatile.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_nontemporal_load_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_nontemporal_load_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_nontemporal_load_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_add_co_u32 v0, s0, s0, v0
 ; GFX10-WGP-NEXT:    v_add_co_ci_u32_e64 v1, s0, s1, 0, s0
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_nontemporal_load_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_add_co_u32 v0, s0, s0, v0
 ; GFX10-CU-NEXT:    v_add_co_ci_u32_e64 v1, s0, s1, 0, s0
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_nontemporal_store_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_nontemporal_store_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_nontemporal_store_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    v_add_co_u32 v0, s0, s2, v0
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[1:2]
 ; GFX10-WGP-NEXT:    v_add_co_ci_u32_e64 v1, s0, s3, 0, s0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_nontemporal_store_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    v_add_co_u32 v0, s0, s2, v0
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[1:2]
 ; GFX10-CU-NEXT:    v_add_co_ci_u32_e64 v1, s0, s3, 0, s0
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_volatile_workgroup_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_volatile_workgroup_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_volatile_workgroup_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_volatile_workgroup_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-wavefront.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_wavefront_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_wavefront_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_wavefront_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_wavefront_seq_cst_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_wavefront_one_as_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_wavefront_one_as_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_wavefront_one_as_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_wavefront_one_as_seq_cst_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_acq_relc_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_acq_relc_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_wavefront_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_wavefront_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

llvm/test/CodeGen/AMDGPU/memory-legalizer-flat-workgroup.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_workgroup_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_workgroup_monotonic_store:

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_load_dword v2, v[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    flat_load_dword v2, v[0:1]
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_workgroup_one_as_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_workgroup_one_as_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_workgroup_one_as_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: flat_workgroup_one_as_seq_cst_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    flat_atomic_swap v2, v[0:1], v2 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    flat_store_dword v[0:1], v2

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s0, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s1, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_monotonicmonotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_monotonicmonotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: flat_workgroup_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-WGP-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    flat_store_dword v[0:1], v2
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: flat_workgroup_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_add_u32 s4, s0, 16
 ; GFX10-CU-NEXT:    s_addc_u32 s5, s1, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX10-CU-NEXT:    flat_atomic_cmpswap v2, v[0:1], v[2:3] glc

llvm/test/CodeGen/AMDGPU/memory-legalizer-global-agent.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_unordered_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_monotonic_load:

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_one_as_unordered_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_one_as_monotonic_load:

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_one_as_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_one_as_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_one_as_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_agent_one_as_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_agent_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_agent_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

llvm/test/CodeGen/AMDGPU/memory-legalizer-global-nontemporal.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_nontemporal_load_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_nontemporal_load_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_nontemporal_load_0:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry
 ; SKIP-CACHE-INV-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_nontemporal_load_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v0, v0, s[0:1] slc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_nontemporal_load_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v0, v0, s[0:1] slc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2 glc slc
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_nontemporal_store_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3] glc slc
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_nontemporal_store_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3] glc slc
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_nontemporal_store_0:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry
 ; SKIP-CACHE-INV-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x0

 ; GFX7-NEXT:    v_addc_u32_e32 v1, vcc, 0, v1, vcc
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2 glc slc
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_nontemporal_store_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3] glc slc
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_nontemporal_store_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3] glc slc
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_nontemporal_store_1:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry
 ; SKIP-CACHE-INV-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x0

llvm/test/CodeGen/AMDGPU/memory-legalizer-global-singlethread.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_unordered_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_monotonic_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_acquire_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_seq_cst_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_seq_cst_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_unordered_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_monotonic_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_acquire_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_seq_cst_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_seq_cst_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_singlethread_one_as_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_singlethread_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_singlethread_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/memory-legalizer-global-system.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_unordered_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_monotonic_load:

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_relese_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_relese_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_one_as_unordered_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_one_as_monotonic_load:

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_one_as_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_one_as_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_one_as_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_system_one_as_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    buffer_gl0_inv
 ; GFX10-CU-NEXT:    buffer_gl1_inv

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_wbinvl1_vol
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_system_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    buffer_gl1_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_system_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

llvm/test/CodeGen/AMDGPU/memory-legalizer-global-volatile.ll

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_volatile_load_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_volatile_load_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_volatile_load_0:

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_volatile_load_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v0, v0, s[0:1] glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_volatile_load_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v0, v0, s[0:1] glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v1, v0, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_volatile_store_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_volatile_store_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_volatile_store_0:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_volatile_store_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_volatile_store_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_volatile_store_1:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_volatile_workgroup_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_volatile_workgroup_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_volatile_workgroup_acquire_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_volatile_workgroup_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_volatile_workgroup_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

llvm/test/CodeGen/AMDGPU/memory-legalizer-global-wavefront.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_unordered_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_monotonic_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_acquire_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_seq_cst_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_seq_cst_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_unordered_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_monotonic_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_acquire_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_seq_cst_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_seq_cst_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_wavefront_one_as_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_wavefront_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_wavefront_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/memory-legalizer-global-workgroup.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_unordered_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_monotonic_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_acquire_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_seq_cst_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_release_atomicrmw:

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_acq_rel_atomicrmw:

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_seq_cst_atomicrmw:

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_unordered_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_monotonic_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_acquire_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_load_dword v1, v0, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_load_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[2:3]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_seq_cst_load:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_unordered_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_monotonic_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_seq_cst_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    flat_atomic_swap v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    global_atomic_swap v1, v0, v1, s[0:1] glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v3, s3
 ; GFX7-NEXT:    flat_atomic_cmpswap v[0:1], v[2:3]
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v2, v[0:1], s[0:1] offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: global_workgroup_one_as_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: global_workgroup_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: global_workgroup_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX10-CU-NEXT:    global_atomic_cmpswap v0, v2, v[0:1], s[0:1] offset:16 glc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v2, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/memory-legalizer-local-agent.ll

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_unordered_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_monotonic_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_seq_cst_store:

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_acquire_atomicrmw:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_release_atomicrmw:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_unordered_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_monotonic_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_release_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_seq_cst_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_agent_one_as_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_agent_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_agent_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/memory-legalizer-local-nontemporal.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_nontemporal_load_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_nontemporal_load_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_nontemporal_load_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_nontemporal_load_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_nontemporal_store_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_nontemporal_store_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_nontemporal_store_0:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry
 ; SKIP-CACHE-INV-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_nontemporal_store_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_nontemporal_store_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_nontemporal_store_1:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry
 ; SKIP-CACHE-INV-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0

llvm/test/CodeGen/AMDGPU/memory-legalizer-local-singlethread.ll

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_unordered_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_monotonic_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_release_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_seq_cst_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_unordered_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_monotonic_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_release_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_seq_cst_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_singlethread_one_as_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_singlethread_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_singlethread_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/memory-legalizer-local-system.ll

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_unordered_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_monotonic_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_seq_cst_store:

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_acquire_atomicrmw:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_release_atomicrmw:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_unordered_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_monotonic_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_release_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_seq_cst_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_system_one_as_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_system_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_system_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/memory-legalizer-local-volatile.ll

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_volatile_load_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_volatile_load_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_volatile_load_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_volatile_load_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_volatile_store_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_volatile_store_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_volatile_store_0:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry
 ; SKIP-CACHE-INV-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_volatile_store_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_volatile_store_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_volatile_store_1:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry
 ; SKIP-CACHE-INV-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x0

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_volatile_workgroup_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_volatile_workgroup_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_volatile_workgroup_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_volatile_workgroup_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_volatile_workgroup_release_store:

llvm/test/CodeGen/AMDGPU/memory-legalizer-local-wavefront.ll

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_unordered_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_monotonic_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_release_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_seq_cst_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_unordered_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_monotonic_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_release_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_seq_cst_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_wavefront_one_as_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_wavefront_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_wavefront_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/memory-legalizer-local-workgroup.ll

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_unordered_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_monotonic_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_release_store:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_seq_cst_store:

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_acquire_atomicrmw:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_release_atomicrmw:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0) lgkmcnt(0)
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    buffer_gl0_inv
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_unordered_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_unordered_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_monotonic_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_monotonic_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acquire_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acquire_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    ds_read_b32 v0, v0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v1, v0
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_seq_cst_load:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_read_b32 v0, v0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v1, v0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_seq_cst_load:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_read_b32 v0, v0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v1, v0
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_unordered_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_unordered_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_unordered_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_monotonic_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_monotonic_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_monotonic_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_release_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_release_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_release_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_seq_cst_store:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_seq_cst_store:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s1
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_seq_cst_store:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_monotonic_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_monotonic_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_monotonic_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acquire_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acquire_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_acquire_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_release_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_release_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_release_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acq_rel_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acq_rel_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_acq_rel_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_seq_cst_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_seq_cst_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v0, v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_seq_cst_atomicrmw:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acquire_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acquire_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acq_rel_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX7-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-WGP-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_seq_cst_ret_atomicrmw:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-CU-NEXT:    ds_wrxchg_rtn_b32 v1, v0, v1
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm
 ;

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_monotonic_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_monotonic_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acquire_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_acquire_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_release_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_release_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_release_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acq_rel_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_acq_rel_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_seq_cst_monotonic_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_seq_cst_monotonic_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_monotonic_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_monotonic_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acquire_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acquire_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_acquire_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_release_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_release_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_release_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acq_rel_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_acq_rel_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_seq_cst_acquire_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_seq_cst_acquire_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_monotonic_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_monotonic_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acquire_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_acquire_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_release_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_release_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_release_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acq_rel_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_acq_rel_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX7-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_seq_cst_seq_cst_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_b32 v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: local_workgroup_one_as_seq_cst_seq_cst_cmpxchg:

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_monotonic_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acquire_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_release_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acq_rel_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_seq_cst_monotonic_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_monotonic_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acquire_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_release_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acq_rel_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_seq_cst_acquire_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_monotonic_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acquire_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_release_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_acq_rel_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

 ; GFX7-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX7-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX7-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX7-NEXT:    ds_write_b32 v0, v1
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: local_workgroup_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-WGP:       ; %bb.0: ; %entry
-; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-WGP-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    ds_write_b32 v0, v1
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: local_workgroup_one_as_seq_cst_seq_cst_ret_cmpxchg:
 ; GFX10-CU:       ; %bb.0: ; %entry
-; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-CU-NEXT:    ds_cmpst_rtn_b32 v1, v0, v1, v2 offset:16
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    ds_write_b32 v0, v1
 ; GFX10-CU-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/memory-legalizer-private-nontemporal.ll

 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: private_nontemporal_load_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-WGP-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-WGP-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    buffer_load_dword v0, v0, s[8:11], 0 offen slc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: private_nontemporal_load_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-CU-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-CU-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    buffer_load_dword v0, v0, s[8:11], 0 offen slc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: private_nontemporal_load_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-WGP-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-WGP-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-WGP-NEXT:    buffer_load_dword v0, v0, s[8:11], 0 offen slc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: private_nontemporal_load_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-CU-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-CU-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-CU-NEXT:    buffer_load_dword v0, v0, s[8:11], 0 offen slc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    buffer_store_dword v0, v1, s[8:11], 0 offen glc slc
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: private_nontemporal_store_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-WGP-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-WGP-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    buffer_store_dword v0, v1, s[8:11], 0 offen glc slc
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: private_nontemporal_store_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-CU-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-CU-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    buffer_store_dword v0, v1, s[8:11], 0 offen glc slc
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: private_nontemporal_store_0:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

 ; GFX7-NEXT:    buffer_store_dword v1, v0, s[8:11], 0 offen glc slc
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: private_nontemporal_store_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-WGP-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-WGP-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    buffer_store_dword v1, v0, s[8:11], 0 offen glc slc
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: private_nontemporal_store_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-CU-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-CU-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    buffer_store_dword v1, v0, s[8:11], 0 offen glc slc
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: private_nontemporal_store_1:
 ; SKIP-CACHE-INV:       ; %bb.0: ; %entry

llvm/test/CodeGen/AMDGPU/memory-legalizer-private-volatile.ll

 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: private_volatile_load_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-WGP-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-WGP-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-WGP-NEXT:    buffer_load_dword v0, v0, s[8:11], 0 offen glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: private_volatile_load_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-CU-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-CU-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-CU-NEXT:    buffer_load_dword v0, v0, s[8:11], 0 offen glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    flat_store_dword v[0:1], v2
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: private_volatile_load_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-WGP-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-WGP-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-WGP-NEXT:    buffer_load_dword v0, v0, s[8:11], 0 offen glc dlc
 ; GFX10-WGP-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-WGP-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: private_volatile_load_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-CU-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-CU-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-CU-NEXT:    buffer_load_dword v0, v0, s[8:11], 0 offen glc dlc
 ; GFX10-CU-NEXT:    s_waitcnt vmcnt(0)

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: private_volatile_store_0:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-WGP-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-WGP-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-WGP-NEXT:    buffer_store_dword v0, v1, s[8:11], 0 offen
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: private_volatile_store_0:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-CU-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-CU-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-CU-NEXT:    buffer_store_dword v0, v1, s[8:11], 0 offen
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: private_volatile_store_0:

 ; GFX7-NEXT:    s_waitcnt vmcnt(0)
 ; GFX7-NEXT:    s_endpgm
 ;
 ; GFX10-WGP-LABEL: private_volatile_store_1:
 ; GFX10-WGP:       ; %bb.0: ; %entry
 ; GFX10-WGP-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-WGP-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-WGP-NEXT:    s_clause 0x1
-; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-WGP-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-WGP-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-WGP-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-WGP-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-WGP-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-WGP-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-WGP-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-WGP-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-WGP-NEXT:    buffer_store_dword v1, v0, s[8:11], 0 offen
 ; GFX10-WGP-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-WGP-NEXT:    s_endpgm
 ;
 ; GFX10-CU-LABEL: private_volatile_store_1:
 ; GFX10-CU:       ; %bb.0: ; %entry
 ; GFX10-CU-NEXT:    s_mov_b64 s[10:11], s[2:3]
 ; GFX10-CU-NEXT:    s_mov_b64 s[8:9], s[0:1]
 ; GFX10-CU-NEXT:    s_clause 0x1
-; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x0
+; GFX10-CU-NEXT:    s_load_dwordx2 s[0:1], s[4:5], null
 ; GFX10-CU-NEXT:    s_load_dword s2, s[4:5], 0x8
 ; GFX10-CU-NEXT:    s_add_u32 s8, s8, s7
 ; GFX10-CU-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], 0x0
+; GFX10-CU-NEXT:    s_load_dword s0, s[0:1], null
 ; GFX10-CU-NEXT:    v_lshl_add_u32 v0, v0, 2, s2
 ; GFX10-CU-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-CU-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX10-CU-NEXT:    buffer_store_dword v1, v0, s[8:11], 0 offen
 ; GFX10-CU-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX10-CU-NEXT:    s_endpgm
 ;
 ; SKIP-CACHE-INV-LABEL: private_volatile_store_1:

llvm/test/CodeGen/AMDGPU/memory_clause.ll

 ; GCN-NEXT:    global_store_dwordx4 v16, v[12:15], s[18:19] offset:48
 ; GCN-NEXT:    s_endpgm
 ;
 ; GCN-SCRATCH-LABEL: scalar_clause:
 ; GCN-SCRATCH:       ; %bb.0: ; %bb
 ; GCN-SCRATCH-NEXT:    s_load_dwordx4 s[16:19], s[0:1], 0x24
 ; GCN-SCRATCH-NEXT:    v_mov_b32_e32 v16, 0
 ; GCN-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
-; GCN-SCRATCH-NEXT:    s_load_dwordx16 s[0:15], s[16:17], 0x0
+; GCN-SCRATCH-NEXT:    s_load_dwordx16 s[0:15], s[16:17], null
 ; GCN-SCRATCH-NEXT:    s_waitcnt lgkmcnt(0)
 ; GCN-SCRATCH-NEXT:    v_mov_b32_e32 v0, s0
 ; GCN-SCRATCH-NEXT:    v_mov_b32_e32 v1, s1
 ; GCN-SCRATCH-NEXT:    v_mov_b32_e32 v2, s2
 ; GCN-SCRATCH-NEXT:    v_mov_b32_e32 v3, s3
 ; GCN-SCRATCH-NEXT:    v_mov_b32_e32 v4, s4
 ; GCN-SCRATCH-NEXT:    v_mov_b32_e32 v5, s5
 ; GCN-SCRATCH-NEXT:    v_mov_b32_e32 v6, s6

llvm/test/CodeGen/AMDGPU/module-lds-false-sharing.ll

 ; GFX10-NEXT:    s_mov_b32 s10, -1
 ; GFX10-NEXT:    s_mov_b32 s11, 0x31c16000
 ; GFX10-NEXT:    s_add_u32 s8, s8, s3
 ; GFX10-NEXT:    s_addc_u32 s9, s9, 0
 ; GFX10-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-NEXT:    s_add_u32 s2, s2, nonkernel@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s3, s3, nonkernel@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], null
 ; GFX10-NEXT:    s_mov_b64 s[6:7], s[0:1]
 ; GFX10-NEXT:    s_mov_b64 s[0:1], s[8:9]
 ; GFX10-NEXT:    s_mov_b64 s[2:3], s[10:11]
 ; GFX10-NEXT:    s_mov_b32 s32, 0
 ; GFX10-NEXT:    ds_write_b32 v0, v0 offset:8
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    s_endpgm

 ; G_GFX10-NEXT:    s_mov_b32 s11, 0x31c16000
 ; G_GFX10-NEXT:    s_add_u32 s8, s8, s3
 ; G_GFX10-NEXT:    s_addc_u32 s9, s9, 0
 ; G_GFX10-NEXT:    s_mov_b64 s[6:7], s[0:1]
 ; G_GFX10-NEXT:    s_getpc_b64 s[0:1]
 ; G_GFX10-NEXT:    s_add_u32 s0, s0, nonkernel@gotpcrel32@lo+4
 ; G_GFX10-NEXT:    s_addc_u32 s1, s1, nonkernel@gotpcrel32@hi+12
 ; G_GFX10-NEXT:    v_mov_b32_e32 v0, 0
-; G_GFX10-NEXT:    s_load_dwordx2 s[4:5], s[0:1], 0x0
+; G_GFX10-NEXT:    s_load_dwordx2 s[4:5], s[0:1], null
 ; G_GFX10-NEXT:    v_mov_b32_e32 v1, 8
 ; G_GFX10-NEXT:    s_mov_b64 s[0:1], s[8:9]
 ; G_GFX10-NEXT:    s_mov_b64 s[2:3], s[10:11]
 ; G_GFX10-NEXT:    s_mov_b32 s32, 0
 ; G_GFX10-NEXT:    ds_write_b32 v1, v0
 ; G_GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; G_GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; G_GFX10-NEXT:    s_endpgm

llvm/test/CodeGen/AMDGPU/promote-constOffset-to-imm.ll

 ; GFX10-NEXT:    s_mov_b32 s38, -1
 ; GFX10-NEXT:    s_mov_b32 s39, 0x31c16000
 ; GFX10-NEXT:    s_add_u32 s36, s36, s3
 ; GFX10-NEXT:    s_addc_u32 s37, s37, 0
 ; GFX10-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-NEXT:    s_add_u32 s2, s2, _Z13get_global_idj@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s3, s3, _Z13get_global_idj@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v31, v0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], null
 ; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b64 s[0:1], s[36:37]
 ; GFX10-NEXT:    s_mov_b64 s[2:3], s[38:39]
 ; GFX10-NEXT:    s_mov_b32 s32, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 7, v0

 ; GFX10-NEXT:    s_mov_b32 s38, -1
 ; GFX10-NEXT:    s_mov_b32 s39, 0x31c16000
 ; GFX10-NEXT:    s_add_u32 s36, s36, s3
 ; GFX10-NEXT:    s_addc_u32 s37, s37, 0
 ; GFX10-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-NEXT:    s_add_u32 s2, s2, _Z13get_global_idj@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s3, s3, _Z13get_global_idj@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v31, v0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], null
 ; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b64 s[0:1], s[36:37]
 ; GFX10-NEXT:    s_mov_b64 s[2:3], s[38:39]
 ; GFX10-NEXT:    s_mov_b32 s32, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    v_mov_b32_e32 v2, 0

 ; GFX10-NEXT:    s_mov_b32 s38, -1
 ; GFX10-NEXT:    s_mov_b32 s39, 0x31c16000
 ; GFX10-NEXT:    s_add_u32 s36, s36, s3
 ; GFX10-NEXT:    s_addc_u32 s37, s37, 0
 ; GFX10-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-NEXT:    s_add_u32 s2, s2, _Z13get_global_idj@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s3, s3, _Z13get_global_idj@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v31, v0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], null
 ; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b64 s[0:1], s[36:37]
 ; GFX10-NEXT:    s_mov_b64 s[2:3], s[38:39]
 ; GFX10-NEXT:    s_mov_b32 s32, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 7, v0

 ; GFX10-NEXT:    s_mov_b32 s38, -1
 ; GFX10-NEXT:    s_mov_b32 s39, 0x31c16000
 ; GFX10-NEXT:    s_add_u32 s36, s36, s3
 ; GFX10-NEXT:    s_addc_u32 s37, s37, 0
 ; GFX10-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-NEXT:    s_add_u32 s2, s2, _Z13get_global_idj@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s3, s3, _Z13get_global_idj@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v31, v0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], null
 ; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b64 s[0:1], s[36:37]
 ; GFX10-NEXT:    s_mov_b64 s[2:3], s[38:39]
 ; GFX10-NEXT:    s_mov_b32 s32, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 7, v0

 ; GFX10-NEXT:    s_mov_b32 s38, -1
 ; GFX10-NEXT:    s_mov_b32 s39, 0x31c16000
 ; GFX10-NEXT:    s_add_u32 s36, s36, s3
 ; GFX10-NEXT:    s_addc_u32 s37, s37, 0
 ; GFX10-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-NEXT:    s_add_u32 s2, s2, _Z13get_global_idj@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s3, s3, _Z13get_global_idj@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v31, v0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], null
 ; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b64 s[0:1], s[36:37]
 ; GFX10-NEXT:    s_mov_b64 s[2:3], s[38:39]
 ; GFX10-NEXT:    s_mov_b32 s32, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 7, v0

 ; GFX10-NEXT:    s_mov_b32 s42, -1
 ; GFX10-NEXT:    s_mov_b32 s43, 0x31c16000
 ; GFX10-NEXT:    s_add_u32 s40, s40, s3
 ; GFX10-NEXT:    s_addc_u32 s41, s41, 0
 ; GFX10-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-NEXT:    s_add_u32 s2, s2, _Z13get_global_idj@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s3, s3, _Z13get_global_idj@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v31, v0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], null
 ; GFX10-NEXT:    s_load_dwordx4 s[36:39], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b64 s[0:1], s[40:41]
 ; GFX10-NEXT:    s_mov_b64 s[2:3], s[42:43]
 ; GFX10-NEXT:    s_mov_b32 s32, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v0, 7, v0

 ; GFX10-NEXT:    s_mov_b32 s38, -1
 ; GFX10-NEXT:    s_mov_b32 s39, 0x31c16000
 ; GFX10-NEXT:    s_add_u32 s36, s36, s3
 ; GFX10-NEXT:    s_addc_u32 s37, s37, 0
 ; GFX10-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-NEXT:    s_add_u32 s2, s2, _Z13get_global_idj@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s3, s3, _Z13get_global_idj@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v31, v0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], null
 ; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b64 s[0:1], s[36:37]
 ; GFX10-NEXT:    s_mov_b64 s[2:3], s[38:39]
 ; GFX10-NEXT:    s_mov_b32 s32, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 7, v0

 ; GFX10-NEXT:    s_mov_b32 s38, -1
 ; GFX10-NEXT:    s_mov_b32 s39, 0x31c16000
 ; GFX10-NEXT:    s_add_u32 s36, s36, s3
 ; GFX10-NEXT:    s_addc_u32 s37, s37, 0
 ; GFX10-NEXT:    s_getpc_b64 s[2:3]
 ; GFX10-NEXT:    s_add_u32 s2, s2, _Z13get_global_idj@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s3, s3, _Z13get_global_idj@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_mov_b32_e32 v31, v0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[2:3], null
 ; GFX10-NEXT:    s_load_dwordx2 s[34:35], s[0:1], 0x24
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_mov_b64 s[0:1], s[36:37]
 ; GFX10-NEXT:    s_mov_b64 s[2:3], s[38:39]
 ; GFX10-NEXT:    s_mov_b32 s32, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v2, 7, v0

llvm/test/CodeGen/AMDGPU/scratch-simple.ll

 ; GFX9-FLATSCR-PAL-DAG: s_waitcnt lgkmcnt(0)
 ; GFX9-FLATSCR-PAL-DAG: s_and_b32 s3, s3, 0xffff
 ; GFX9-FLATSCR-PAL-DAG: s_add_u32 flat_scratch_lo, s2, s0
 ; GFX9-FLATSCR-PAL-DAG: s_addc_u32 flat_scratch_hi, s3, 0
 ; GFX9-FLATSCR-PAL-DAG: v_and_b32_e32 [[CLAMP_IDX:v[0-9]+]], 0x1fc, v0
 
 ; GFX10-FLATSCR-PAL: s_getpc_b64 s[2:3]
 ; GFX10-FLATSCR-PAL: s_mov_b32 s2, s0
-; GFX10-FLATSCR-PAL: s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX10-FLATSCR-PAL: s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX10-FLATSCR-PAL: s_waitcnt lgkmcnt(0)
 ; GFX10-FLATSCR-PAL: s_and_b32 s3, s3, 0xffff
 ; GFX10-FLATSCR-PAL: s_add_u32 s2, s2, s0
 ; GFX10-FLATSCR-PAL: s_addc_u32 s3, s3, 0
 ; GFX10-FLATSCR-PAL: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX10-FLATSCR-PAL: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 
 ; MUBUF-DAG: s_mov_b32 s0, SCRATCH_RSRC_DWORD0

 ; GFX9-FLATSCR-PAL-DAG: s_mov_b32 vcc_hi, 0
 ; GFX9-FLATSCR-PAL-DAG: s_waitcnt lgkmcnt(0)
 ; GFX9-FLATSCR-PAL-DAG: s_and_b32 s3, s3, 0xffff
 ; GFX9-FLATSCR-PAL-DAG: s_add_u32 flat_scratch_lo, s2, s0
 ; GFX9-FLATSCR-PAL-DAG: s_addc_u32 flat_scratch_hi, s3, 0
 
 ; GFX10-FLATSCR-PAL: s_getpc_b64 s[2:3]
 ; GFX10-FLATSCR-PAL: s_mov_b32 s2, s0
-; GFX10-FLATSCR-PAL: s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX10-FLATSCR-PAL: s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX10-FLATSCR-PAL: s_waitcnt lgkmcnt(0)
 ; GFX10-FLATSCR-PAL: s_and_b32 s3, s3, 0xffff
 ; GFX10-FLATSCR-PAL: s_add_u32 s2, s2, s0
 ; GFX10-FLATSCR-PAL: s_addc_u32 s3, s3, 0
 ; GFX10-FLATSCR-PAL: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s2
 ; GFX10-FLATSCR-PAL: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s3
 
 ; MUBUF-DAG: s_mov_b32 s0, SCRATCH_RSRC_DWORD0

 ; GFX9-FLATSCR-PAL-DAG: s_mov_b32 vcc_hi, 0
 ; GFX9-FLATSCR-PAL-DAG: s_waitcnt lgkmcnt(0)
 ; GFX9-FLATSCR-PAL-DAG: s_and_b32 s1, s1, 0xffff
 ; GFX9-FLATSCR-PAL-DAG: s_add_u32 flat_scratch_lo, s0, s5
 ; GFX9-FLATSCR-PAL-DAG: s_addc_u32 flat_scratch_hi, s1, 0
 
 ; GFX10-FLATSCR-PAL: s_getpc_b64 s[0:1]
 ; GFX10-FLATSCR-PAL: s_mov_b32 s0, s8
-; GFX10-FLATSCR-PAL: s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-FLATSCR-PAL: s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-FLATSCR-PAL: s_waitcnt lgkmcnt(0)
 ; GFX10-FLATSCR-PAL: s_and_b32 s1, s1, 0xffff
 ; GFX10-FLATSCR-PAL: s_add_u32 s0, s0, s5
 ; GFX10-FLATSCR-PAL: s_addc_u32 s1, s1, 0
 ; GFX10-FLATSCR-PAL: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s0
 ; GFX10-FLATSCR-PAL: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s1
 
 ; SIVI: s_mov_b32 s0, SCRATCH_RSRC_DWORD0

 ; GFX9-FLATSCR-PAL-DAG: s_mov_b32 vcc_hi, 0
 ; GFX9-FLATSCR-PAL-DAG: s_waitcnt lgkmcnt(0)
 ; GFX9-FLATSCR-PAL-DAG: s_and_b32 s1, s1, 0xffff
 ; GFX9-FLATSCR-PAL-DAG: s_add_u32 flat_scratch_lo, s0, s5
 ; GFX9-FLATSCR-PAL-DAG: s_addc_u32 flat_scratch_hi, s1, 0
 
 ; GFX10-FLATSCR-PAL: s_getpc_b64 s[0:1]
 ; GFX10-FLATSCR-PAL: s_mov_b32 s0, s8
-; GFX10-FLATSCR-PAL: s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-FLATSCR-PAL: s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-FLATSCR-PAL: s_waitcnt lgkmcnt(0)
 ; GFX10-FLATSCR-PAL: s_and_b32 s1, s1, 0xffff
 ; GFX10-FLATSCR-PAL: s_add_u32 s0, s0, s5
 ; GFX10-FLATSCR-PAL: s_addc_u32 s1, s1, 0
 ; GFX10-FLATSCR-PAL: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s0
 ; GFX10-FLATSCR-PAL: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s1
 
 ; MUBUF: s_mov_b32 s8, SCRATCH_RSRC_DWORD0

 ; GFX9-FLATSCR-PAL-DAG: s_mov_b32 vcc_hi, 0
 ; GFX9-FLATSCR-PAL-DAG: s_waitcnt lgkmcnt(0)
 ; GFX9-FLATSCR-PAL-DAG: s_and_b32 s1, s1, 0xffff
 ; GFX9-FLATSCR-PAL-DAG: s_add_u32 flat_scratch_lo, s0, s5
 ; GFX9-FLATSCR-PAL-DAG: s_addc_u32 flat_scratch_hi, s1, 0
 
 ; GFX10-FLATSCR-PAL: s_getpc_b64 s[0:1]
 ; GFX10-FLATSCR-PAL: s_mov_b32 s0, s8
-; GFX10-FLATSCR-PAL: s_load_dwordx2 s[0:1], s[0:1], 0x0
+; GFX10-FLATSCR-PAL: s_load_dwordx2 s[0:1], s[0:1], null
 ; GFX10-FLATSCR-PAL: s_waitcnt lgkmcnt(0)
 ; GFX10-FLATSCR-PAL: s_and_b32 s1, s1, 0xffff
 ; GFX10-FLATSCR-PAL: s_add_u32 s0, s0, s5
 ; GFX10-FLATSCR-PAL: s_addc_u32 s1, s1, 0
 ; GFX10-FLATSCR-PAL: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_LO), s0
 ; GFX10-FLATSCR-PAL: s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s1
 
 ; MUBUF: s_mov_b32 s8, SCRATCH_RSRC_DWORD0

llvm/test/CodeGen/AMDGPU/smrd-gfx10.ll

 ; RUN: llc -march=amdgcn -mcpu=gfx1010 -verify-machineinstrs -show-mc-encoding < %s | FileCheck -check-prefixes=GCN,GFX10 %s
 ; RUN: llc -march=amdgcn -mcpu=gfx1100 -verify-machineinstrs -show-mc-encoding < %s | FileCheck -check-prefixes=GCN,GFX11 %s
 
 ; GCN-LABEL: {{^}}smrd_imm_dlc:
-; GFX10: s_buffer_load_dword s0, s[0:3], 0x0 dlc ; encoding: [0x00,0x40,0x20,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10: s_buffer_load_dword s0, s[0:3], null dlc ; encoding: [0x00,0x40,0x20,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX11: s_buffer_load_b32 s0, s[0:3], 0x0 dlc ; encoding: [0x00,0x20,0x20,0xf4,0x00,0x00,0x00,0xf8]
 define amdgpu_ps float @smrd_imm_dlc(<4 x i32> inreg %desc) #0 {
 main_body:
   %r = call float @llvm.amdgcn.s.buffer.load.f32(<4 x i32> %desc, i32 0, i32 4)
   ret float %r
 }
 
 ; GCN-LABEL: {{^}}smrd_sgpr_dlc:
-; GFX10: s_buffer_load_dword s0, s[0:3], s4 offset:0x0 dlc ; encoding: [0x00,0x40,0x20,0xf4,0x00,0x00,0x00,0x08]
+; GFX10: s_buffer_load_dword s0, s[0:3], s4 dlc ; encoding: [0x00,0x40,0x20,0xf4,0x00,0x00,0x00,0x08]
 ; GFX11: s_buffer_load_b32 s0, s[0:3], s4 offset:0x0 dlc ; encoding: [0x00,0x20,0x20,0xf4,0x00,0x00,0x00,0x08]
 define amdgpu_ps float @smrd_sgpr_dlc(<4 x i32> inreg %desc, i32 inreg %offset) #0 {
 main_body:
   %r = call float @llvm.amdgcn.s.buffer.load.f32(<4 x i32> %desc, i32 %offset, i32 4)
   ret float %r
 }
 
 ; GCN-LABEL: {{^}}smrd_imm_glc_dlc:
-; GFX10: s_buffer_load_dword s0, s[0:3], 0x0 glc dlc ; encoding: [0x00,0x40,0x21,0xf4,0x00,0x00,0x00,0xfa]
+; GFX10: s_buffer_load_dword s0, s[0:3], null glc dlc ; encoding: [0x00,0x40,0x21,0xf4,0x00,0x00,0x00,0xfa]
 ; GFX11: s_buffer_load_b32 s0, s[0:3], 0x0 glc dlc ; encoding: [0x00,0x60,0x20,0xf4,0x00,0x00,0x00,0xf8]
 define amdgpu_ps float @smrd_imm_glc_dlc(<4 x i32> inreg %desc) #0 {
 main_body:
   %r = call float @llvm.amdgcn.s.buffer.load.f32(<4 x i32> %desc, i32 0, i32 5)
   ret float %r
 }
 
 ; GCN-LABEL: {{^}}smrd_sgpr_glc_dlc:
-; GFX10: s_buffer_load_dword s0, s[0:3], s4 offset:0x0 glc dlc ; encoding: [0x00,0x40,0x21,0xf4,0x00,0x00,0x00,0x08]
+; GFX10: s_buffer_load_dword s0, s[0:3], s4 glc dlc ; encoding: [0x00,0x40,0x21,0xf4,0x00,0x00,0x00,0x08]
 ; GFX11: s_buffer_load_b32 s0, s[0:3], s4 offset:0x0 glc dlc ; encoding: [0x00,0x60,0x20,0xf4,0x00,0x00,0x00,0x08]
 define amdgpu_ps float @smrd_sgpr_glc_dlc(<4 x i32> inreg %desc, i32 inreg %offset) #0 {
 main_body:
   %r = call float @llvm.amdgcn.s.buffer.load.f32(<4 x i32> %desc, i32 %offset, i32 5)
   ret float %r
 }
 
 declare float @llvm.amdgcn.s.buffer.load.f32(<4 x i32>, i32, i32)
 
 !0 = !{}

llvm/test/CodeGen/AMDGPU/smrd.ll

entry:
   store i32 %tmp1, ptr addrspace(1) %out
   ret void
 }
 
 ; Don't use a negative SGPR offset
 ; GCN-LABEL: {{^}}smrd7:
 ; GCN: s_add_u32 s{{[0-9]}}, s{{[0-9]}}, 0xffe00000
 ; SICIVI: s_load_dword s{{[0-9]}}, s{{\[[0-9]+:[0-9]+\]}}, 0x0
-; GFX9_10: s_load_dword s{{[0-9]}}, s{{\[[0-9]+:[0-9]+\]}}, 0x0
+; GFX9: s_load_dword s{{[0-9]}}, s{{\[[0-9]+:[0-9]+\]}}, 0x0
+; GFX10: s_load_dword s{{[0-9]}}, s{{\[[0-9]+:[0-9]+\]}}, null
 define amdgpu_kernel void @smrd7(ptr addrspace(1) %out, ptr addrspace(4) %ptr) #0 {
 entry:
   %tmp = getelementptr i32, ptr addrspace(4) %ptr, i64 -524288
   %tmp1 = load i32, ptr addrspace(4) %tmp
   store i32 %tmp1, ptr addrspace(1) %out
   ret void
 }
 
 ; GCN-LABEL: {{^}}smrd_hazard:
 ; GCN-DAG: s_mov_b32 s3, 3
 ; GCN-DAG: s_mov_b32 s2, 2
 ; GCN-DAG: s_mov_b32 s1, 1
 ; GCN-DAG: s_mov_b32 s0, 0
 ; SI-NEXT: nop 3
-; GCN-NEXT: s_buffer_load_dword s0, s[0:3], 0x0
+; SICIVI-NEXT: s_buffer_load_dword s0, s[0:3], 0x0
+; GFX9-NEXT: s_buffer_load_dword s0, s[0:3], 0x0
+; GFX10-NEXT: s_buffer_load_dword s0, s[0:3], null
 define amdgpu_ps float @smrd_hazard(<4 x i32> inreg %desc) #0 {
 main_body:
   %d0 = insertelement <4 x i32> undef, i32 0, i32 0
   %d1 = insertelement <4 x i32> %d0, i32 1, i32 1
   %d2 = insertelement <4 x i32> %d1, i32 2, i32 2
   %d3 = insertelement <4 x i32> %d2, i32 3, i32 3
   %r = call float @llvm.amdgcn.s.buffer.load.f32(<4 x i32> %d3, i32 0, i32 0)
   ret float %r

llvm/test/CodeGen/AMDGPU/store-local.128.ll

 ; GFX6-NEXT:    v_mov_b32_e32 v2, s4
 ; GFX6-NEXT:    v_mov_b32_e32 v3, s5
 ; GFX6-NEXT:    ds_write2_b64 v4, v[2:3], v[0:1] offset1:1
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v4, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s7
 ; GFX10-NEXT:    ds_write_b128 v4, v[0:3]

 ; GFX6-NEXT:    ds_write_b8 v0, v1 offset:7
 ; GFX6-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX6-NEXT:    ds_write_b8 v0, v1 offset:6
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32_align1:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s6
 ; GFX10-NEXT:    s_lshr_b32 s3, s7, 24
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s7
 ; GFX10-NEXT:    s_lshr_b32 s0, s6, 8
 ; GFX10-NEXT:    s_lshr_b32 s1, s6, 24

 ; GFX6-NEXT:    ds_write_b16 v0, v1 offset:2
 ; GFX6-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX6-NEXT:    ds_write_b16 v0, v1 offset:6
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32_align2:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s7
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v4, s5
 ; GFX10-NEXT:    ds_write_b16 v0, v1 offset:8

 ; GFX6-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX6-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX6-NEXT:    ds_write2_b32 v0, v1, v2 offset1:1
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32_align4:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s7
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v4, s5
 ; GFX10-NEXT:    ds_write2_b32 v0, v1, v2 offset0:2 offset1:3

 ; GFX6-NEXT:    v_mov_b32_e32 v3, s7
 ; GFX6-NEXT:    ds_write2_b64 v4, v[0:1], v[2:3] offset1:1
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32_align8:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v4, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s7
 ; GFX10-NEXT:    ds_write2_b64 v4, v[0:1], v[2:3] offset1:1
 ; GFX10-NEXT:    s_endpgm

 ; GFX6-NEXT:    v_mov_b32_e32 v2, s4
 ; GFX6-NEXT:    v_mov_b32_e32 v3, s5
 ; GFX6-NEXT:    ds_write2_b64 v4, v[2:3], v[0:1] offset1:1
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v4i32_align16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v4, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s7
 ; GFX10-NEXT:    ds_write_b128 v4, v[0:3]

llvm/test/CodeGen/AMDGPU/store-local.96.ll

 ; GFX6-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX6-NEXT:    ds_write_b64 v2, v[0:1]
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s2
 ; GFX10-NEXT:    ds_write_b96 v3, v[0:2]
 ; GFX10-NEXT:    s_endpgm
 ;

 ; GFX6-NEXT:    ds_write_b8 v0, v1 offset:7
 ; GFX6-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX6-NEXT:    ds_write_b8 v0, v1 offset:6
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32_align1:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s5
 ; GFX10-NEXT:    s_lshr_b32 s0, s6, 8
 ; GFX10-NEXT:    s_lshr_b32 s1, s6, 24

 ; GFX6-NEXT:    ds_write_b16 v0, v1 offset:2
 ; GFX6-NEXT:    v_mov_b32_e32 v1, s0
 ; GFX6-NEXT:    ds_write_b16 v0, v1 offset:6
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32_align2:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s5
 ; GFX10-NEXT:    ds_write_b16 v0, v1 offset:8
 ; GFX10-NEXT:    ds_write_b16_d16_hi v0, v1 offset:10

 ; GFX6-NEXT:    ds_write_b32 v0, v1 offset:8
 ; GFX6-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX6-NEXT:    ds_write2_b32 v0, v2, v1 offset1:1
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32_align4:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s5
 ; GFX10-NEXT:    ds_write_b32 v0, v1 offset:8
 ; GFX10-NEXT:    ds_write2_b32 v0, v2, v3 offset1:1

 ; GFX6-NEXT:    ds_write_b32 v2, v1 offset:8
 ; GFX6-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX6-NEXT:    ds_write_b64 v2, v[0:1]
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32_align8:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-NEXT:    ds_write_b32 v2, v3 offset:8
 ; GFX10-NEXT:    ds_write_b64 v2, v[0:1]

 ; GFX6-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX6-NEXT:    ds_write_b64 v2, v[0:1]
 ; GFX6-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: store_lds_v3i32_align16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x10
-; GFX10-NEXT:    s_load_dword s2, s[0:1], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s2
 ; GFX10-NEXT:    ds_write_b96 v3, v[0:2]
 ; GFX10-NEXT:    s_endpgm
 ;

llvm/test/CodeGen/AMDGPU/store-weird-sizes.ll

 ; GFX9-NEXT:    ds_write_b32 v1, v3
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: local_store_i55:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
-; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-NEXT:    global_load_ubyte_d16_hi v0, v0, s[4:5] offset:14
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_and_b32 s3, s1, 0xffff
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s1
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s0
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    v_or_b32_e32 v0, s3, v0

 ; GFX9-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX9-NEXT:    ds_write_b16 v0, v1 offset:4
 ; GFX9-NEXT:    ds_write_b32 v0, v2
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: local_store_i48:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s2, s[4:5], null
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s0
 ; GFX10-NEXT:    ds_write_b16 v0, v1 offset:4
 ; GFX10-NEXT:    ds_write_b32 v0, v2
 ; GFX10-NEXT:    s_endpgm

 ; GFX9-NEXT:    ds_write_b8 v2, v3 offset:8
 ; GFX9-NEXT:    ds_write_b64 v2, v[0:1]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: local_store_i65:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x2
 ; GFX10-NEXT:    s_load_dword s2, s[4:5], 0x10
-; GFX10-NEXT:    s_load_dword s3, s[4:5], 0x0
+; GFX10-NEXT:    s_load_dword s3, s[4:5], null
 ; GFX10-NEXT:    s_load_dwordx2 s[0:1], s[4:5], 0x8
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_and_b32 s2, s2, 1
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s3
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s2
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s1
 ; GFX10-NEXT:    ds_write_b8 v2, v3 offset:8

llvm/test/CodeGen/AMDGPU/sub.v2i16.ll

 ; VI-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: s_test_sub_v2i16:
 ; GFX10:       ; %bb.0:
 ; GFX10-NEXT:    s_clause 0x1
 ; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x24
 ; GFX10-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x34
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dword s0, s[6:7], 0x0
-; GFX10-NEXT:    s_load_dword s1, s[2:3], 0x0
+; GFX10-NEXT:    s_load_dword s0, s[6:7], null
+; GFX10-NEXT:    s_load_dword s1, s[2:3], null
 ; GFX10-NEXT:    s_mov_b32 s7, 0x31016000
 ; GFX10-NEXT:    s_mov_b32 s6, -1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_pk_sub_i16 v0, s0, s1
 ; GFX10-NEXT:    buffer_store_dword v0, off, s[4:7], 0
 ; GFX10-NEXT:    s_endpgm
 ;
 ; GFX11-LABEL: s_test_sub_v2i16:

llvm/test/CodeGen/AMDGPU/udiv.ll

 ; GCN-NEXT:    v_add_u32_e32 v5, vcc, 1, v4
 ; GCN-NEXT:    v_cmp_ge_u32_e32 vcc, v0, v1
 ; GCN-NEXT:    v_cndmask_b32_e32 v0, v4, v5, vcc
 ; GCN-NEXT:    flat_store_dword v[2:3], v0
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: udiv_i32:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_dwordx2 v[0:1], v2, s[2:3]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    v_readfirstlane_b32 s2, v1
 ; GFX1030-NEXT:    v_readfirstlane_b32 s5, v0
 ; GFX1030-NEXT:    v_cvt_f32_u32_e32 v1, s2
 ; GFX1030-NEXT:    s_sub_i32 s4, 0, s2

 ; GCN-NEXT:    v_cndmask_b32_e32 v2, v0, v1, vcc
 ; GCN-NEXT:    v_mov_b32_e32 v0, s0
 ; GCN-NEXT:    v_mov_b32_e32 v1, s1
 ; GCN-NEXT:    flat_store_dword v[0:1], v2
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: s_udiv_i32:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    v_cvt_f32_u32_e32 v0, s3
 ; GFX1030-NEXT:    s_sub_i32 s5, 0, s3
 ; GFX1030-NEXT:    v_rcp_iflag_f32_e32 v0, v0
 ; GFX1030-NEXT:    v_mul_f32_e32 v0, 0x4f7ffffe, v0
 ; GFX1030-NEXT:    v_cvt_u32_f32_e32 v0, v0
 ; GFX1030-NEXT:    v_readfirstlane_b32 s4, v0
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, 0

 ; GCN-NEXT:    v_cndmask_b32_e32 v0, v6, v8, vcc
 ; GCN-NEXT:    v_cmp_ge_u32_e32 vcc, v1, v3
 ; GCN-NEXT:    v_cndmask_b32_e32 v1, v7, v9, vcc
 ; GCN-NEXT:    flat_store_dwordx2 v[4:5], v[0:1]
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: udiv_v2i32:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v4, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_dwordx4 v[0:3], v4, s[2:3]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    v_readfirstlane_b32 s2, v2
 ; GFX1030-NEXT:    v_readfirstlane_b32 s3, v3
 ; GFX1030-NEXT:    v_readfirstlane_b32 s6, v0
 ; GFX1030-NEXT:    v_cvt_f32_u32_e32 v2, s2

 ; GCN-NEXT:    v_cndmask_b32_e32 v2, v12, v16, vcc
 ; GCN-NEXT:    v_cmp_ge_u32_e32 vcc, v7, v3
 ; GCN-NEXT:    v_cndmask_b32_e32 v3, v13, v17, vcc
 ; GCN-NEXT:    flat_store_dwordx4 v[8:9], v[0:3]
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: udiv_v4i32:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v8, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    s_clause 0x1
 ; GFX1030-NEXT:    global_load_dwordx4 v[0:3], v8, s[2:3] offset:16
 ; GFX1030-NEXT:    global_load_dwordx4 v[4:7], v8, s[2:3]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(1)
 ; GFX1030-NEXT:    v_readfirstlane_b32 s2, v0
 ; GFX1030-NEXT:    v_readfirstlane_b32 s3, v1

 ; GCN-NEXT:    v_mov_b32_e32 v1, s1
 ; GCN-NEXT:    s_waitcnt vmcnt(0)
 ; GCN-NEXT:    v_lshrrev_b32_e32 v2, 4, v2
 ; GCN-NEXT:    flat_store_dword v[0:1], v2
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: udiv_i32_div_pow2:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_dword v1, v0, s[2:3]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    v_lshrrev_b32_e32 v1, 4, v1
 ; GFX1030-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX1030-NEXT:    s_endpgm
 ;

 ; GCN-NEXT:    v_mul_hi_u32 v2, v0, s2
 ; GCN-NEXT:    v_mov_b32_e32 v0, s0
 ; GCN-NEXT:    v_lshrrev_b32_e32 v2, 25, v2
 ; GCN-NEXT:    flat_store_dword v[0:1], v2
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: udiv_i32_div_k_even:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_dword v1, v0, s[2:3]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    v_mul_hi_u32 v1, 0xfabbd9c1, v1
 ; GFX1030-NEXT:    v_lshrrev_b32_e32 v1, 25, v1
 ; GFX1030-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX1030-NEXT:    s_endpgm

 ; GCN-NEXT:    v_mul_hi_u32 v2, v0, s2
 ; GCN-NEXT:    v_mov_b32_e32 v0, s0
 ; GCN-NEXT:    v_lshrrev_b32_e32 v2, 24, v2
 ; GCN-NEXT:    flat_store_dword v[0:1], v2
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: udiv_i32_div_k_odd:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_dword v1, v0, s[2:3]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    v_mul_hi_u32 v1, 0x7d5deca3, v1
 ; GFX1030-NEXT:    v_lshrrev_b32_e32 v1, 24, v1
 ; GFX1030-NEXT:    global_store_dword v0, v1, s[0:1]
 ; GFX1030-NEXT:    s_endpgm

 ; GCN-NEXT:    v_cmp_ge_f32_e64 vcc, |v2|, v3
 ; GCN-NEXT:    v_addc_u32_e32 v2, vcc, 0, v5, vcc
 ; GCN-NEXT:    v_and_b32_e32 v2, 0xff, v2
 ; GCN-NEXT:    flat_store_dword v[0:1], v2
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: v_udiv_i8:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_ushort v1, v0, s[2:3]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    v_cvt_f32_ubyte1_e32 v2, v1
 ; GFX1030-NEXT:    v_cvt_f32_ubyte0_e32 v1, v1
 ; GFX1030-NEXT:    v_rcp_iflag_f32_e32 v3, v2
 ; GFX1030-NEXT:    v_mul_f32_e32 v3, v1, v3

 ; GCN-NEXT:    v_cmp_ge_f32_e64 vcc, |v3|, v2
 ; GCN-NEXT:    v_addc_u32_e32 v2, vcc, 0, v5, vcc
 ; GCN-NEXT:    v_and_b32_e32 v2, 0xffff, v2
 ; GCN-NEXT:    flat_store_dword v[0:1], v2
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: v_udiv_i16:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_dword v1, v0, s[2:3]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    v_cvt_f32_u32_sdwa v2, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_1
 ; GFX1030-NEXT:    v_cvt_f32_u32_sdwa v1, v1 dst_sel:DWORD dst_unused:UNUSED_PAD src0_sel:WORD_0
 ; GFX1030-NEXT:    v_rcp_iflag_f32_e32 v3, v2
 ; GFX1030-NEXT:    v_mul_f32_e32 v3, v1, v3

 ; GCN-NEXT:    v_cmp_ge_f32_e64 vcc, |v3|, v2
 ; GCN-NEXT:    v_addc_u32_e32 v2, vcc, 0, v5, vcc
 ; GCN-NEXT:    v_and_b32_e32 v2, 0x7fffff, v2
 ; GCN-NEXT:    flat_store_dword v[0:1], v2
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: v_udiv_i23:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    s_clause 0x3
 ; GFX1030-NEXT:    global_load_ubyte v1, v0, s[2:3] offset:6
 ; GFX1030-NEXT:    global_load_ushort v2, v0, s[2:3] offset:4
 ; GFX1030-NEXT:    global_load_ubyte v3, v0, s[2:3] offset:2
 ; GFX1030-NEXT:    global_load_ushort v4, v0, s[2:3]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(3)

 ; GCN-NEXT:    v_cmp_ge_u32_e32 vcc, v2, v3
 ; GCN-NEXT:    v_cndmask_b32_e32 v2, v4, v5, vcc
 ; GCN-NEXT:    v_and_b32_e32 v2, 0xffffff, v2
 ; GCN-NEXT:    flat_store_dword v[0:1], v2
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: v_udiv_i24:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    s_clause 0x3
 ; GFX1030-NEXT:    global_load_ubyte v1, v0, s[2:3] offset:6
 ; GFX1030-NEXT:    global_load_ushort v2, v0, s[2:3] offset:4
 ; GFX1030-NEXT:    global_load_ubyte v3, v0, s[2:3] offset:2
 ; GFX1030-NEXT:    global_load_ushort v4, v0, s[2:3]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(3)

 ; GCN-NEXT:    v_lshrrev_b32_e32 v1, 10, v1
 ; GCN-NEXT:    v_lshrrev_b32_e32 v2, 10, v2
 ; GCN-NEXT:    v_lshrrev_b32_e32 v3, 10, v3
 ; GCN-NEXT:    flat_store_dwordx4 v[4:5], v[0:3]
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: scalarize_mulhu_4xi32:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX1030-NEXT:    v_mov_b32_e32 v4, 0
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    global_load_dwordx4 v[0:3], v4, s[0:1]
 ; GFX1030-NEXT:    s_waitcnt vmcnt(0)
 ; GFX1030-NEXT:    v_lshrrev_b32_e32 v0, 2, v0
 ; GFX1030-NEXT:    v_lshrrev_b32_e32 v1, 2, v1
 ; GFX1030-NEXT:    v_lshrrev_b32_e32 v2, 2, v2
 ; GFX1030-NEXT:    v_lshrrev_b32_e32 v3, 2, v3

 ; GCN-NEXT:    s_lshr_b32 s0, s0, 1
 ; GCN-NEXT:    v_mov_b32_e32 v0, s0
 ; GCN-NEXT:    flat_store_dword v[0:1], v0
 ; GCN-NEXT:    s_waitcnt vmcnt(0)
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: test_udiv2:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dword s0, s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dword s0, s[4:5], null
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    s_lshr_b32 s0, s0, 1
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX1030-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX1030-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX1030-NEXT:    s_endpgm
 ;
 ; EG-LABEL: test_udiv2:

 ; GCN-NEXT:    v_mul_hi_u32 v0, s0, v0
 ; GCN-NEXT:    v_lshrrev_b32_e32 v0, 1, v0
 ; GCN-NEXT:    flat_store_dword v[0:1], v0
 ; GCN-NEXT:    s_waitcnt vmcnt(0)
 ; GCN-NEXT:    s_endpgm
 ;
 ; GFX1030-LABEL: test_udiv_3_mulhu:
 ; GFX1030:       ; %bb.0:
-; GFX1030-NEXT:    s_load_dword s0, s[4:5], 0x0
+; GFX1030-NEXT:    s_load_dword s0, s[4:5], null
 ; GFX1030-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1030-NEXT:    s_mul_hi_u32 s0, s0, 0xaaaaaaab
 ; GFX1030-NEXT:    s_lshr_b32 s0, s0, 1
 ; GFX1030-NEXT:    v_mov_b32_e32 v0, s0
 ; GFX1030-NEXT:    global_store_dword v[0:1], v0, off
 ; GFX1030-NEXT:    s_waitcnt_vscnt null, 0x0
 ; GFX1030-NEXT:    s_endpgm
 ;

llvm/test/CodeGen/AMDGPU/v_pack.ll

 ; GCN-NEXT:    v_pack_b32_f16 v0, v0, v1
 ; GCN-NEXT:    buffer_store_dword v0, off, s[4:7], 0
 ; GCN-NEXT:    s_endpgm
 ;
 ; GISEL-LABEL: fptrunc:
 ; GISEL:       ; %bb.0:
 ; GISEL-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GISEL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GISEL-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GISEL-NEXT:    s_waitcnt lgkmcnt(0)
 ; GISEL-NEXT:    v_cvt_f16_f32_e32 v0, s2
 ; GISEL-NEXT:    v_cvt_f16_f32_e32 v1, s3
 ; GISEL-NEXT:    v_pack_b32_f16 v0, v0, v1
 ; GISEL-NEXT:    v_mov_b32_e32 v1, 0
 ; GISEL-NEXT:    global_store_dword v1, v0, s[0:1]
 ; GISEL-NEXT:    s_endpgm
     ptr addrspace(1) %r,

llvm/test/CodeGen/AMDGPU/vector_shuffle.packed.ll

 ; GFX9-NEXT:    v_pk_fma_f16 v0, v0, v3, v4 op_sel:[1,0,0]
 ; GFX9-NEXT:    v_pk_fma_f16 v1, v1, v3, v2 op_sel:[1,0,0]
 ; GFX9-NEXT:    global_store_dwordx2 v6, v[0:1], s[6:7]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: fma_shuffle:
 ; GFX10:       ; %bb.0: ; %entry
 ; GFX10-NEXT:    s_clause 0x1
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    s_load_dwordx2 s[6:7], s[4:5], 0x10
 ; GFX10-NEXT:    v_lshlrev_b32_e32 v6, 3, v0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_clause 0x2
 ; GFX10-NEXT:    global_load_dwordx2 v[0:1], v6, s[0:1]
 ; GFX10-NEXT:    global_load_dwordx2 v[2:3], v6, s[2:3]
 ; GFX10-NEXT:    global_load_dwordx2 v[4:5], v6, s[6:7]
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)

 ; GFX9-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX9-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX9-NEXT:    v_mov_b32_e32 v3, s7
 ; GFX9-NEXT:    global_store_dwordx4 v4, v[0:3], s[2:3]
 ; GFX9-NEXT:    s_endpgm
 ;
 ; GFX10-LABEL: shuffle_scalar_load_v8i32_0123:
 ; GFX10:       ; %bb.0:
-; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[0:3], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v4, 0
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], 0x0
+; GFX10-NEXT:    s_load_dwordx4 s[4:7], s[0:1], null
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    v_mov_b32_e32 v0, s4
 ; GFX10-NEXT:    v_mov_b32_e32 v1, s5
 ; GFX10-NEXT:    v_mov_b32_e32 v2, s6
 ; GFX10-NEXT:    v_mov_b32_e32 v3, s7
 ; GFX10-NEXT:    global_store_dwordx4 v4, v[0:3], s[2:3]
 ; GFX10-NEXT:    s_endpgm
 ;

llvm/test/CodeGen/AMDGPU/vgpr-tuple-allocation.ll

 ; GFX10-NEXT:    ;;#ASMEND
 ; GFX10-NEXT:    image_gather4_c_b_cl v[41:44], v[32:36], s[4:11], s[4:7] dmask:0x1 dim:SQ_RSRC_IMG_2D
 ; GFX10-NEXT:    s_addk_i32 s32, 0x400
 ; GFX10-NEXT:    v_writelane_b32 v45, s4, 0
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, extern_func@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, extern_func@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 1
 ; GFX10-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-NEXT:    s_swappc_b64 s[30:31], s[4:5]
 ; GFX10-NEXT:    v_mov_b32_e32 v0, v41
 ; GFX10-NEXT:    v_mov_b32_e32 v1, v42
 ; GFX10-NEXT:    v_mov_b32_e32 v2, v43
 ; GFX10-NEXT:    v_mov_b32_e32 v3, v44
 ; GFX10-NEXT:    s_clause 0x3

 ; GFX10-NEXT:    buffer_store_dword v45, off, s[0:3], s33 ; 4-byte Folded Spill
 ; GFX10-NEXT:    image_gather4_c_b_cl v[0:3], v[12:16], s[4:11], s[4:7] dmask:0x1 dim:SQ_RSRC_IMG_2D
 ; GFX10-NEXT:    s_addk_i32 s32, 0x400
 ; GFX10-NEXT:    v_writelane_b32 v46, s4, 0
 ; GFX10-NEXT:    s_getpc_b64 s[4:5]
 ; GFX10-NEXT:    s_add_u32 s4, s4, extern_func@gotpcrel32@lo+4
 ; GFX10-NEXT:    s_addc_u32 s5, s5, extern_func@gotpcrel32@hi+12
 ; GFX10-NEXT:    v_writelane_b32 v40, s30, 0
-; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], 0x0
+; GFX10-NEXT:    s_load_dwordx2 s[4:5], s[4:5], null
 ; GFX10-NEXT:    v_mov_b32_e32 v41, v16
 ; GFX10-NEXT:    v_mov_b32_e32 v42, v15
 ; GFX10-NEXT:    v_mov_b32_e32 v43, v14
 ; GFX10-NEXT:    v_writelane_b32 v40, s31, 1
 ; GFX10-NEXT:    v_mov_b32_e32 v44, v13
 ; GFX10-NEXT:    v_mov_b32_e32 v45, v12
 ; GFX10-NEXT:    s_waitcnt vmcnt(0)
 ; GFX10-NEXT:    global_store_dwordx4 v[0:1], v[0:3], off

llvm/test/CodeGen/AMDGPU/vgpr_constant_to_sgpr.ll

 ; CHECK-NEXT:    s_setreg_b32 hwreg(HW_REG_FLAT_SCR_HI), s13
 ; CHECK-NEXT:    s_add_u32 s0, s0, s17
 ; CHECK-NEXT:    s_addc_u32 s1, s1, 0
 ; CHECK-NEXT:    v_writelane_b32 v40, s16, 0
 ; CHECK-NEXT:    s_mov_b32 s13, s15
 ; CHECK-NEXT:    s_mov_b32 s12, s14
 ; CHECK-NEXT:    v_readlane_b32 s14, v40, 0
 ; CHECK-NEXT:    s_mov_b64 s[16:17], s[8:9]
-; CHECK-NEXT:    s_load_dwordx2 s[8:9], s[16:17], 0x0
+; CHECK-NEXT:    s_load_dwordx2 s[8:9], s[16:17], null
 ; CHECK-NEXT:    v_mov_b32_e32 v5, 42
 ; CHECK-NEXT:    s_waitcnt lgkmcnt(0)
 ; CHECK-NEXT:    v_mov_b32_e32 v3, s8
 ; CHECK-NEXT:    v_mov_b32_e32 v4, s9
 ; CHECK-NEXT:    flat_store_dword v[3:4], v5
 ; CHECK-NEXT:    s_mov_b64 s[18:19], 8
 ; CHECK-NEXT:    s_mov_b32 s8, s16
 ; CHECK-NEXT:    s_mov_b32 s9, s17
 ; CHECK-NEXT:    s_mov_b32 s16, s18
 ; CHECK-NEXT:    s_mov_b32 s15, s19
 ; CHECK-NEXT:    s_add_u32 s8, s8, s16
 ; CHECK-NEXT:    s_addc_u32 s15, s9, s15
 ; CHECK-NEXT:    ; kill: def $sgpr8 killed $sgpr8 def $sgpr8_sgpr9
 ; CHECK-NEXT:    s_mov_b32 s9, s15
 ; CHECK-NEXT:    s_getpc_b64 s[16:17]
 ; CHECK-NEXT:    s_add_u32 s16, s16, unknown_call@gotpcrel32@lo+4
 ; CHECK-NEXT:    s_addc_u32 s17, s17, unknown_call@gotpcrel32@hi+12
-; CHECK-NEXT:    s_load_dwordx2 s[16:17], s[16:17], 0x0
+; CHECK-NEXT:    s_load_dwordx2 s[16:17], s[16:17], null
 ; CHECK-NEXT:    s_mov_b64 s[22:23], s[2:3]
 ; CHECK-NEXT:    s_mov_b64 s[20:21], s[0:1]
 ; CHECK-NEXT:    s_mov_b32 s15, 20
 ; CHECK-NEXT:    v_lshlrev_b32_e64 v2, s15, v2
 ; CHECK-NEXT:    s_mov_b32 s15, 10
 ; CHECK-NEXT:    v_lshlrev_b32_e64 v1, s15, v1
 ; CHECK-NEXT:    v_or3_b32 v31, v0, v1, v2
 ; CHECK-NEXT:    s_mov_b32 s15, 42

llvm/test/CodeGen/AMDGPU/wave32.ll

bb:
   ret void
 }
 
 define amdgpu_kernel void @test_udiv64(ptr addrspace(1) %arg) #0 {
 ; GFX1032-LABEL: test_udiv64:
 ; GFX1032:       ; %bb.0: ; %bb
 ; GFX1032-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x24
 ; GFX1032-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1032-NEXT:    s_load_dwordx4 s[4:7], s[2:3], 0x0
+; GFX1032-NEXT:    s_load_dwordx4 s[4:7], s[2:3], null
 ; GFX1032-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032-NEXT:    s_or_b64 s[8:9], s[6:7], s[4:5]
 ; GFX1032-NEXT:    s_mov_b32 s8, 0
 ; GFX1032-NEXT:    s_cmp_lg_u64 s[8:9], 0
 ; GFX1032-NEXT:    s_cbranch_scc0 .LBB15_4
 ; GFX1032-NEXT:  ; %bb.1:
 ; GFX1032-NEXT:    v_cvt_f32_u32_e32 v0, s4
 ; GFX1032-NEXT:    v_cvt_f32_u32_e32 v1, s5

 ; GFX1032-NEXT:  .LBB15_4:
 ; GFX1032-NEXT:    ; implicit-def: $vgpr0_vgpr1
 ; GFX1032-NEXT:    s_branch .LBB15_2
 ;
 ; GFX1064-LABEL: test_udiv64:
 ; GFX1064:       ; %bb.0: ; %bb
 ; GFX1064-NEXT:    s_load_dwordx2 s[2:3], s[0:1], 0x24
 ; GFX1064-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1064-NEXT:    s_load_dwordx4 s[4:7], s[2:3], 0x0
+; GFX1064-NEXT:    s_load_dwordx4 s[4:7], s[2:3], null
 ; GFX1064-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064-NEXT:    s_or_b64 s[0:1], s[6:7], s[4:5]
 ; GFX1064-NEXT:    s_mov_b32 s0, 0
 ; GFX1064-NEXT:    s_cmp_lg_u64 s[0:1], 0
 ; GFX1064-NEXT:    s_cbranch_scc0 .LBB15_4
 ; GFX1064-NEXT:  ; %bb.1:
 ; GFX1064-NEXT:    v_cvt_f32_u32_e32 v0, s4
 ; GFX1064-NEXT:    v_cvt_f32_u32_e32 v1, s5
; GFX1064-NEXT:    ; return to shader part epilog
   ret float %r
 }
 
 define amdgpu_kernel void @test_vccnz_ifcvt_triangle64(ptr addrspace(1) %out, ptr addrspace(1) %in) #0 {
 ; GFX1032-LABEL: test_vccnz_ifcvt_triangle64:
 ; GFX1032:       ; %bb.0: ; %entry
 ; GFX1032-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX1032-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1032-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1032-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1032-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032-NEXT:    v_cmp_neq_f64_e64 s4, s[2:3], 1.0
 ; GFX1032-NEXT:    s_and_b32 vcc_lo, exec_lo, s4
 ; GFX1032-NEXT:    s_cbranch_vccnz .LBB47_2
 ; GFX1032-NEXT:  ; %bb.1: ; %if
 ; GFX1032-NEXT:    v_add_f64 v[0:1], s[2:3], s[2:3]
 ; GFX1032-NEXT:    s_branch .LBB47_3
 ; GFX1032-NEXT:  .LBB47_2:
 ; GFX1032-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX1032-NEXT:    v_mov_b32_e32 v1, s3
 ; GFX1032-NEXT:  .LBB47_3: ; %endif
 ; GFX1032-NEXT:    v_mov_b32_e32 v2, 0
 ; GFX1032-NEXT:    global_store_dwordx2 v2, v[0:1], s[0:1]
 ; GFX1032-NEXT:    s_endpgm
 ;
 ; GFX1064-LABEL: test_vccnz_ifcvt_triangle64:
 ; GFX1064:       ; %bb.0: ; %entry
 ; GFX1064-NEXT:    s_load_dwordx4 s[0:3], s[0:1], 0x24
 ; GFX1064-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1064-NEXT:    s_load_dwordx2 s[2:3], s[2:3], 0x0
+; GFX1064-NEXT:    s_load_dwordx2 s[2:3], s[2:3], null
 ; GFX1064-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064-NEXT:    v_cmp_neq_f64_e64 s[4:5], s[2:3], 1.0
 ; GFX1064-NEXT:    s_and_b64 vcc, exec, s[4:5]
 ; GFX1064-NEXT:    s_cbranch_vccnz .LBB47_2
 ; GFX1064-NEXT:  ; %bb.1: ; %if
 ; GFX1064-NEXT:    v_add_f64 v[0:1], s[2:3], s[2:3]
 ; GFX1064-NEXT:    s_branch .LBB47_3
 ; GFX1064-NEXT:  .LBB47_2:

 ; GFX1032-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX1032-NEXT:    s_mov_b32 exec_lo, s17
 ; GFX1032-NEXT:    s_addk_i32 s32, 0x200
 ; GFX1032-NEXT:    v_writelane_b32 v41, s16, 0
 ; GFX1032-NEXT:    s_getpc_b64 s[16:17]
 ; GFX1032-NEXT:    s_add_u32 s16, s16, external_void_func_void@gotpcrel32@lo+4
 ; GFX1032-NEXT:    s_addc_u32 s17, s17, external_void_func_void@gotpcrel32@hi+12
 ; GFX1032-NEXT:    v_writelane_b32 v40, s30, 0
-; GFX1032-NEXT:    s_load_dwordx2 s[16:17], s[16:17], 0x0
+; GFX1032-NEXT:    s_load_dwordx2 s[16:17], s[16:17], null
 ; GFX1032-NEXT:    v_writelane_b32 v40, s31, 1
 ; GFX1032-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1032-NEXT:    s_swappc_b64 s[30:31], s[16:17]
 ; GFX1032-NEXT:    v_readlane_b32 s31, v40, 1
 ; GFX1032-NEXT:    v_readlane_b32 s30, v40, 0
 ; GFX1032-NEXT:    v_readlane_b32 s4, v41, 0
 ; GFX1032-NEXT:    s_or_saveexec_b32 s5, -1
 ; GFX1032-NEXT:    s_clause 0x1

 ; GFX1064-NEXT:    s_waitcnt_depctr 0xffe3
 ; GFX1064-NEXT:    s_mov_b64 exec, s[18:19]
 ; GFX1064-NEXT:    s_addk_i32 s32, 0x400
 ; GFX1064-NEXT:    v_writelane_b32 v41, s16, 0
 ; GFX1064-NEXT:    s_getpc_b64 s[16:17]
 ; GFX1064-NEXT:    s_add_u32 s16, s16, external_void_func_void@gotpcrel32@lo+4
 ; GFX1064-NEXT:    s_addc_u32 s17, s17, external_void_func_void@gotpcrel32@hi+12
 ; GFX1064-NEXT:    v_writelane_b32 v40, s30, 0
-; GFX1064-NEXT:    s_load_dwordx2 s[16:17], s[16:17], 0x0
+; GFX1064-NEXT:    s_load_dwordx2 s[16:17], s[16:17], null
 ; GFX1064-NEXT:    v_writelane_b32 v40, s31, 1
 ; GFX1064-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX1064-NEXT:    s_swappc_b64 s[30:31], s[16:17]
 ; GFX1064-NEXT:    v_readlane_b32 s31, v40, 1
 ; GFX1064-NEXT:    v_readlane_b32 s30, v40, 0
 ; GFX1064-NEXT:    v_readlane_b32 s4, v41, 0
 ; GFX1064-NEXT:    s_or_saveexec_b64 s[6:7], -1
 ; GFX1064-NEXT:    s_clause 0x1

llvm/test/CodeGen/AMDGPU/wqm.ll

 ; GFX9-W64-NEXT:    exp null off, off, off, off done vm
 ; GFX9-W64-NEXT:    s_endpgm
 ;
 ; GFX10-W32-LABEL: test_for_deactivating_lanes_in_wave32:
 ; GFX10-W32:       ; %bb.0: ; %main_body
 ; GFX10-W32-NEXT:    s_mov_b32 s3, 0x31016fac
 ; GFX10-W32-NEXT:    s_mov_b32 s2, 32
 ; GFX10-W32-NEXT:    s_mov_b32 s1, 0x8000
-; GFX10-W32-NEXT:    s_buffer_load_dword s0, s[0:3], 0x0
+; GFX10-W32-NEXT:    s_buffer_load_dword s0, s[0:3], null
 ; GFX10-W32-NEXT:    s_waitcnt lgkmcnt(0)
 ; GFX10-W32-NEXT:    v_cmp_le_f32_e64 vcc_lo, s0, 0
 ; GFX10-W32-NEXT:    s_andn2_b32 s4, exec_lo, vcc_lo
 ; GFX10-W32-NEXT:    s_cbranch_scc0 .LBB50_1
 ; GFX10-W32-NEXT:    s_endpgm
 ; GFX10-W32-NEXT:  .LBB50_1:
 ; GFX10-W32-NEXT:    s_mov_b32 exec_lo, 0
 ; GFX10-W32-NEXT:    exp null off, off, off, off done vm

llvm/test/MC/AMDGPU/gfx10_asm_smem.s

 
 s_buffer_atomic_umin s5, s[4:7], s2 dlc
 // GFX10: encoding: [0x42,0x41,0x14,0xf5,0x00,0x00,0x00,0x04]
 
 s_buffer_atomic_xor s5, s[4:7], s2 dlc
 // GFX10: encoding: [0x42,0x41,0x28,0xf5,0x00,0x00,0x00,0x04]
 
 s_load_dword s1, s[2:3] glc
-// GFX10: s_load_dword s1, s[2:3], 0x0 glc ; encoding: [0x41,0x00,0x01,0xf4,0x00,0x00,0x00,0xfa]
+// GFX10: s_load_dword s1, s[2:3], null glc ; encoding: [0x41,0x00,0x01,0xf4,0x00,0x00,0x00,0xfa]
 
 s_load_dword s1, s[2:3] dlc
-// GFX10: s_load_dword s1, s[2:3], 0x0 dlc ; encoding: [0x41,0x40,0x00,0xf4,0x00,0x00,0x00,0xfa]
+// GFX10: s_load_dword s1, s[2:3], null dlc ; encoding: [0x41,0x40,0x00,0xf4,0x00,0x00,0x00,0xfa]

llvm/test/MC/AMDGPU/smem.s

 
 s_dcache_discard s[2:3], s0
 // GFX9:     s_dcache_discard s[2:3], s0 ; encoding: [0x01,0x00,0xa0,0xc0,0x00,0x00,0x00,0x00]
 // GFX1012:  s_dcache_discard s[2:3], s0 ; encoding: [0x01,0x00,0xa0,0xf4,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_dcache_discard s[2:3], 0x0
 // GFX9:     s_dcache_discard s[2:3], 0x0 ; encoding: [0x01,0x00,0xa2,0xc0,0x00,0x00,0x00,0x00]
-// GFX1012:  s_dcache_discard s[2:3], 0x0 ; encoding: [0x01,0x00,0xa0,0xf4,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_dcache_discard s[2:3], null ; encoding: [0x01,0x00,0xa0,0xf4,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_dcache_discard_x2 s[2:3], s101
 // GFX9:     s_dcache_discard_x2 s[2:3], s101 ; encoding: [0x01,0x00,0xa4,0xc0,0x65,0x00,0x00,0x00]
 // GFX1012:  s_dcache_discard_x2 s[2:3], s101 ; encoding: [0x01,0x00,0xa4,0xf4,0x00,0x00,0x00,0xca]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_dcache_discard_x2 s[2:3], 0x0
 // GFX9:     s_dcache_discard_x2 s[2:3], 0x0 ; encoding: [0x01,0x00,0xa6,0xc0,0x00,0x00,0x00,0x00]
-// GFX1012:  s_dcache_discard_x2 s[2:3], 0x0 ; encoding: [0x01,0x00,0xa4,0xf4,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_dcache_discard_x2 s[2:3], null ; encoding: [0x01,0x00,0xa4,0xf4,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 //===----------------------------------------------------------------------===//
 // s_atomic instructions
 //===----------------------------------------------------------------------===//
 
 s_atomic_add s5, s[2:3], s101
 // GFX9:     s_atomic_add s5, s[2:3], s101 ; encoding: [0x41,0x01,0x08,0xc2,0x65,0x00,0x00,0x00]
 // GFX1012:  s_atomic_add s5, s[2:3], s101 ; encoding: [0x41,0x01,0x08,0xf6,0x00,0x00,0x00,0xca]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_add s5, s[2:3], 0x0
 // GFX9:     s_atomic_add s5, s[2:3], 0x0 ; encoding: [0x41,0x01,0x0a,0xc2,0x00,0x00,0x00,0x00]
-// GFX1012:  s_atomic_add s5, s[2:3], 0x0 ; encoding: [0x41,0x01,0x08,0xf6,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_atomic_add s5, s[2:3], null ; encoding: [0x41,0x01,0x08,0xf6,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_add s5, s[2:3], s0 glc
 // GFX9:     s_atomic_add s5, s[2:3], s0 glc ; encoding: [0x41,0x01,0x09,0xc2,0x00,0x00,0x00,0x00]
 // GFX1012:  s_atomic_add s5, s[2:3], s0 glc ; encoding: [0x41,0x01,0x09,0xf6,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_add_x2 s[10:11], s[2:3], s101
 // GFX9:     s_atomic_add_x2 s[10:11], s[2:3], s101 ; encoding: [0x81,0x02,0x88,0xc2,0x65,0x00,0x00,0x00]
 // GFX1012:  s_atomic_add_x2 s[10:11], s[2:3], s101 ; encoding: [0x81,0x02,0x88,0xf6,0x00,0x00,0x00,0xca]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_and s5, s[2:3], s101
 // GFX9:     s_atomic_and s5, s[2:3], s101 ; encoding: [0x41,0x01,0x20,0xc2,0x65,0x00,0x00,0x00]
 // GFX1012:  s_atomic_and s5, s[2:3], s101 ; encoding: [0x41,0x01,0x20,0xf6,0x00,0x00,0x00,0xca]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_and_x2 s[10:11], s[2:3], 0x0
 // GFX9:     s_atomic_and_x2 s[10:11], s[2:3], 0x0 ; encoding: [0x81,0x02,0xa2,0xc2,0x00,0x00,0x00,0x00]
-// GFX1012:  s_atomic_and_x2 s[10:11], s[2:3], 0x0 ; encoding: [0x81,0x02,0xa0,0xf6,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_atomic_and_x2 s[10:11], s[2:3], null ; encoding: [0x81,0x02,0xa0,0xf6,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_cmpswap s[10:11], s[2:3], s101
 // GFX9:     s_atomic_cmpswap s[10:11], s[2:3], s101 ; encoding: [0x81,0x02,0x04,0xc2,0x65,0x00,0x00,0x00]
 // GFX1012:  s_atomic_cmpswap s[10:11], s[2:3], s101 ; encoding: [0x81,0x02,0x04,0xf6,0x00,0x00,0x00,0xca]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_cmpswap s[10:11], s[2:3], 0x0
 // GFX9:     s_atomic_cmpswap s[10:11], s[2:3], 0x0 ; encoding: [0x81,0x02,0x06,0xc2,0x00,0x00,0x00,0x00]
-// GFX1012:  s_atomic_cmpswap s[10:11], s[2:3], 0x0 ; encoding: [0x81,0x02,0x04,0xf6,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_atomic_cmpswap s[10:11], s[2:3], null ; encoding: [0x81,0x02,0x04,0xf6,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_cmpswap s[10:11], s[2:3], s0 glc
 // GFX9:     s_atomic_cmpswap s[10:11], s[2:3], s0 glc ; encoding: [0x81,0x02,0x05,0xc2,0x00,0x00,0x00,0x00]
 // GFX1012:  s_atomic_cmpswap s[10:11], s[2:3], s0 glc ; encoding: [0x81,0x02,0x05,0xf6,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_cmpswap_x2 s[20:23], s[2:3], s101
 // GFX9:     s_atomic_cmpswap_x2 s[20:23], s[2:3], s101 ; encoding: [0x01,0x05,0x84,0xc2,0x65,0x00,0x00,0x00]
 // GFX1012:  s_atomic_cmpswap_x2 s[20:23], s[2:3], s101 ; encoding: [0x01,0x05,0x84,0xf6,0x00,0x00,0x00,0xca]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_cmpswap_x2 s[20:23], s[2:3], 0x0
 // GFX9:     s_atomic_cmpswap_x2 s[20:23], s[2:3], 0x0 ; encoding: [0x01,0x05,0x86,0xc2,0x00,0x00,0x00,0x00]
-// GFX1012:  s_atomic_cmpswap_x2 s[20:23], s[2:3], 0x0 ; encoding: [0x01,0x05,0x84,0xf6,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_atomic_cmpswap_x2 s[20:23], s[2:3], null ; encoding: [0x01,0x05,0x84,0xf6,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_cmpswap_x2 s[20:23], s[2:3], s0 glc
 // GFX9:     s_atomic_cmpswap_x2 s[20:23], s[2:3], s0 glc ; encoding: [0x01,0x05,0x85,0xc2,0x00,0x00,0x00,0x00]
 // GFX1012:  s_atomic_cmpswap_x2 s[20:23], s[2:3], s0 glc ; encoding: [0x01,0x05,0x85,0xf6,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_dec s5, s[2:3], s0 glc

 
 s_atomic_inc_x2 s[10:11], s[2:3], s101
 // GFX9:     s_atomic_inc_x2 s[10:11], s[2:3], s101 ; encoding: [0x81,0x02,0xac,0xc2,0x65,0x00,0x00,0x00]
 // GFX1012:  s_atomic_inc_x2 s[10:11], s[2:3], s101 ; encoding: [0x81,0x02,0xac,0xf6,0x00,0x00,0x00,0xca]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_or s5, s[2:3], 0x0
 // GFX9:     s_atomic_or s5, s[2:3], 0x0 ; encoding: [0x41,0x01,0x26,0xc2,0x00,0x00,0x00,0x00]
-// GFX1012:  s_atomic_or s5, s[2:3], 0x0 ; encoding: [0x41,0x01,0x24,0xf6,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_atomic_or s5, s[2:3], null ; encoding: [0x41,0x01,0x24,0xf6,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_or_x2 s[10:11], s[2:3], s0 glc
 // GFX9:     s_atomic_or_x2 s[10:11], s[2:3], s0 glc ; encoding: [0x81,0x02,0xa5,0xc2,0x00,0x00,0x00,0x00]
 // GFX1012:  s_atomic_or_x2 s[10:11], s[2:3], s0 glc ; encoding: [0x81,0x02,0xa5,0xf6,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_atomic_smax s5, s[2:3], s101

 
 s_buffer_atomic_add s5, s[4:7], s101
 // GFX9:     s_buffer_atomic_add s5, s[4:7], s101 ; encoding: [0x42,0x01,0x08,0xc1,0x65,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_add s5, s[4:7], s101 ; encoding: [0x42,0x01,0x08,0xf5,0x00,0x00,0x00,0xca]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_add s5, s[4:7], 0x0
 // GFX9:     s_buffer_atomic_add s5, s[4:7], 0x0 ; encoding: [0x42,0x01,0x0a,0xc1,0x00,0x00,0x00,0x00]
-// GFX1012:  s_buffer_atomic_add s5, s[4:7], 0x0 ; encoding: [0x42,0x01,0x08,0xf5,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_buffer_atomic_add s5, s[4:7], null ; encoding: [0x42,0x01,0x08,0xf5,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_add s5, s[4:7], s0 glc
 // GFX9:     s_buffer_atomic_add s5, s[4:7], s0 glc ; encoding: [0x42,0x01,0x09,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_add s5, s[4:7], s0 glc ; encoding: [0x42,0x01,0x09,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_add_x2 s[10:11], s[4:7], s0

 
 s_buffer_atomic_cmpswap s[10:11], s[4:7], s0
 // GFX9:     s_buffer_atomic_cmpswap s[10:11], s[4:7], s0 ; encoding: [0x82,0x02,0x04,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_cmpswap s[10:11], s[4:7], s0 ; encoding: [0x82,0x02,0x04,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_cmpswap s[10:11], s[4:7], 0x0
 // GFX9:     s_buffer_atomic_cmpswap s[10:11], s[4:7], 0x0 ; encoding: [0x82,0x02,0x06,0xc1,0x00,0x00,0x00,0x00]
-// GFX1012:  s_buffer_atomic_cmpswap s[10:11], s[4:7], 0x0 ; encoding: [0x82,0x02,0x04,0xf5,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_buffer_atomic_cmpswap s[10:11], s[4:7], null ; encoding: [0x82,0x02,0x04,0xf5,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_cmpswap s[10:11], s[4:7], s0 glc
 // GFX9:     s_buffer_atomic_cmpswap s[10:11], s[4:7], s0 glc ; encoding: [0x82,0x02,0x05,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_cmpswap s[10:11], s[4:7], s0 glc ; encoding: [0x82,0x02,0x05,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_cmpswap_x2 s[20:23], s[4:7], s101
 // GFX9:     s_buffer_atomic_cmpswap_x2 s[20:23], s[4:7], s101 ; encoding: [0x02,0x05,0x84,0xc1,0x65,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_cmpswap_x2 s[20:23], s[4:7], s101 ; encoding: [0x02,0x05,0x84,0xf5,0x00,0x00,0x00,0xca]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_cmpswap_x2 s[20:23], s[4:7], 0x0
 // GFX9:     s_buffer_atomic_cmpswap_x2 s[20:23], s[4:7], 0x0 ; encoding: [0x02,0x05,0x86,0xc1,0x00,0x00,0x00,0x00]
-// GFX1012:  s_buffer_atomic_cmpswap_x2 s[20:23], s[4:7], 0x0 ; encoding: [0x02,0x05,0x84,0xf5,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_buffer_atomic_cmpswap_x2 s[20:23], s[4:7], null ; encoding: [0x02,0x05,0x84,0xf5,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_cmpswap_x2 s[20:23], s[4:7], s0 glc
 // GFX9:     s_buffer_atomic_cmpswap_x2 s[20:23], s[4:7], s0 glc ; encoding: [0x02,0x05,0x85,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_cmpswap_x2 s[20:23], s[4:7], s0 glc ; encoding: [0x02,0x05,0x85,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_dec s5, s[4:7], s0
 // GFX9:     s_buffer_atomic_dec s5, s[4:7], s0 ; encoding: [0x42,0x01,0x30,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_dec s5, s[4:7], s0 ; encoding: [0x42,0x01,0x30,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_dec_x2 s[10:11], s[4:7], s0 glc
 // GFX9:     s_buffer_atomic_dec_x2 s[10:11], s[4:7], s0 glc ; encoding: [0x82,0x02,0xb1,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_dec_x2 s[10:11], s[4:7], s0 glc ; encoding: [0x82,0x02,0xb1,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_inc s101, s[4:7], s0
 // GFX9:     s_buffer_atomic_inc s101, s[4:7], s0 ; encoding: [0x42,0x19,0x2c,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_inc s101, s[4:7], s0 ; encoding: [0x42,0x19,0x2c,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_inc_x2 s[10:11], s[4:7], 0x0
 // GFX9:     s_buffer_atomic_inc_x2 s[10:11], s[4:7], 0x0 ; encoding: [0x82,0x02,0xae,0xc1,0x00,0x00,0x00,0x00]
-// GFX1012:  s_buffer_atomic_inc_x2 s[10:11], s[4:7], 0x0 ; encoding: [0x82,0x02,0xac,0xf5,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_buffer_atomic_inc_x2 s[10:11], s[4:7], null ; encoding: [0x82,0x02,0xac,0xf5,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_or s5, s[8:11], s0
 // GFX9:     s_buffer_atomic_or s5, s[8:11], s0 ; encoding: [0x44,0x01,0x24,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_or s5, s[8:11], s0 ; encoding: [0x44,0x01,0x24,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_or_x2 s[10:11], s[96:99], s0
 // GFX9:     s_buffer_atomic_or_x2 s[10:11], s[96:99], s0 ; encoding: [0xb0,0x02,0xa4,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_or_x2 s[10:11], s[96:99], s0 ; encoding: [0xb0,0x02,0xa4,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_smax s5, s[4:7], s101
 // GFX9:     s_buffer_atomic_smax s5, s[4:7], s101 ; encoding: [0x42,0x01,0x18,0xc1,0x65,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_smax s5, s[4:7], s101 ; encoding: [0x42,0x01,0x18,0xf5,0x00,0x00,0x00,0xca]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_smax_x2 s[100:101], s[4:7], s0
 // GFX9:     s_buffer_atomic_smax_x2 s[100:101], s[4:7], s0 ; encoding: [0x02,0x19,0x98,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_smax_x2 s[100:101], s[4:7], s0 ; encoding: [0x02,0x19,0x98,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_smin s5, s[4:7], 0x0
 // GFX9:     s_buffer_atomic_smin s5, s[4:7], 0x0 ; encoding: [0x42,0x01,0x12,0xc1,0x00,0x00,0x00,0x00]
-// GFX1012:  s_buffer_atomic_smin s5, s[4:7], 0x0 ; encoding: [0x42,0x01,0x10,0xf5,0x00,0x00,0x00,0xfa]
+// GFX1012:  s_buffer_atomic_smin s5, s[4:7], null ; encoding: [0x42,0x01,0x10,0xf5,0x00,0x00,0x00,0xfa]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_smin_x2 s[12:13], s[4:7], s0
 // GFX9:     s_buffer_atomic_smin_x2 s[12:13], s[4:7], s0 ; encoding: [0x02,0x03,0x90,0xc1,0x00,0x00,0x00,0x00]
 // GFX1012:  s_buffer_atomic_smin_x2 s[12:13], s[4:7], s0 ; encoding: [0x02,0x03,0x90,0xf5,0x00,0x00,0x00,0x00]
 // NOSICIVIGFX1030: :[[@LINE-3]]:{{[0-9]+}}: error: instruction not supported on this GPU
 
 s_buffer_atomic_sub s5, s[4:7], s0 glc