diff --git a/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp b/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
--- a/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
@@ -637,6 +637,54 @@
     DefBuilder.addReg(ImpDefSuperReg, RegState::Define | RegState::Implicit);
 }
 
+static void expandSGPRCopy(const SIInstrInfo &TII, MachineBasicBlock &MBB,
+                           MachineBasicBlock::iterator MI, const DebugLoc &DL,
+                           MCRegister DestReg, MCRegister SrcReg, bool KillSrc,
+                           const TargetRegisterClass *RC, bool Forward) {
+  const SIRegisterInfo &RI = TII.getRegisterInfo();
+  ArrayRef<int16_t> BaseIndices = RI.getRegSplitParts(RC, 4);
+  MachineBasicBlock::iterator I = MI;
+  MachineInstr *FirstMI = nullptr, *LastMI = nullptr;
+
+  for (unsigned Idx = 0; Idx < BaseIndices.size(); ++Idx) {
+    int16_t SubIdx = BaseIndices[Idx];
+    Register Reg = RI.getSubReg(DestReg, SubIdx);
+    unsigned Opcode = AMDGPU::S_MOV_B32;
+
+    // Is SGPR aligned? If so try to combine with next.
+    Register Src = RI.getSubReg(SrcReg, SubIdx);
+    bool AlignedDest = ((Reg - AMDGPU::SGPR0) % 2) == 0;
+    bool AlignedSrc = ((Src - AMDGPU::SGPR0) % 2) == 0;
+    if (AlignedDest && AlignedSrc && (Idx + 1 < BaseIndices.size())) {
+      // Can use SGPR64 copy
+      unsigned Channel = RI.getChannelFromSubReg(SubIdx);
+      SubIdx = RI.getSubRegFromChannel(Channel, 2);
+      Opcode = AMDGPU::S_MOV_B64;
+      Idx++;
+    }
+
+    LastMI = BuildMI(MBB, I, DL, TII.get(Opcode), RI.getSubReg(DestReg, SubIdx))
+                 .addReg(RI.getSubReg(SrcReg, SubIdx))
+                 .addReg(SrcReg, RegState::Implicit);
+
+    if (!FirstMI)
+      FirstMI = LastMI;
+
+    if (!Forward)
+      I--;
+  }
+
+  assert(FirstMI && LastMI);
+  if (!Forward)
+    std::swap(FirstMI, LastMI);
+
+  FirstMI->addOperand(
+      MachineOperand::CreateReg(DestReg, true /*IsDef*/, true /*IsImp*/));
+
+  if (KillSrc)
+    LastMI->addRegisterKilled(SrcReg, &RI);
+}
+
 void SIInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
                               MachineBasicBlock::iterator MI,
                               const DebugLoc &DL, MCRegister DestReg,
@@ -842,23 +890,18 @@
     return;
   }
 
-  unsigned EltSize = 4;
-  unsigned Opcode = AMDGPU::V_MOV_B32_e32;
+  const bool Forward = RI.getHWRegIndex(DestReg) <= RI.getHWRegIndex(SrcReg);
   if (RI.isSGPRClass(RC)) {
-    // TODO: Copy vec3/vec5 with s_mov_b64s then final s_mov_b32.
-    if (!(RI.getRegSizeInBits(*RC) % 64)) {
-      Opcode =  AMDGPU::S_MOV_B64;
-      EltSize = 8;
-    } else {
-      Opcode = AMDGPU::S_MOV_B32;
-      EltSize = 4;
-    }
-
     if (!RI.isSGPRClass(RI.getPhysRegClass(SrcReg))) {
       reportIllegalCopy(this, MBB, MI, DL, DestReg, SrcReg, KillSrc);
       return;
     }
-  } else if (RI.hasAGPRs(RC)) {
+    expandSGPRCopy(*this, MBB, MI, DL, DestReg, SrcReg, KillSrc, RC, Forward);
+    return;
+  }
+
+  unsigned Opcode = AMDGPU::V_MOV_B32_e32;
+  if (RI.hasAGPRs(RC)) {
     Opcode = RI.hasVGPRs(RI.getPhysRegClass(SrcReg)) ?
       AMDGPU::V_ACCVGPR_WRITE_B32 : AMDGPU::INSTRUCTION_LIST_END;
   } else if (RI.hasVGPRs(RC) && RI.hasAGPRs(RI.getPhysRegClass(SrcReg))) {
@@ -866,8 +909,7 @@
   }
 
   // For the cases where we need an intermediate instruction/temporary register
-  // (the result is an SGPR, and the source is either an SGPR or AGPR), we need
-  // a scavenger.
+  // (destination is an AGPR), we need a scavenger.
   //
   // FIXME: The pass should maintain this for us so we don't have to re-scan the
   // whole block for every handled copy.
@@ -875,8 +917,7 @@
   if (Opcode == AMDGPU::INSTRUCTION_LIST_END)
     RS.reset(new RegScavenger());
 
-  ArrayRef<int16_t> SubIndices = RI.getRegSplitParts(RC, EltSize);
-  bool Forward = RI.getHWRegIndex(DestReg) <= RI.getHWRegIndex(SrcReg);
+  ArrayRef<int16_t> SubIndices = RI.getRegSplitParts(RC, 4);
 
   for (unsigned Idx = 0; Idx < SubIndices.size(); ++Idx) {
     unsigned SubIdx;
@@ -885,7 +926,6 @@
     else
       SubIdx = SubIndices[SubIndices.size() - Idx - 1];
 
-
     bool UseKill = KillSrc && Idx == SubIndices.size() - 1;
 
     if (Opcode == AMDGPU::INSTRUCTION_LIST_END) {
diff --git a/llvm/test/CodeGen/AMDGPU/sgpr-phys-copy.mir b/llvm/test/CodeGen/AMDGPU/sgpr-phys-copy.mir
--- a/llvm/test/CodeGen/AMDGPU/sgpr-phys-copy.mir
+++ b/llvm/test/CodeGen/AMDGPU/sgpr-phys-copy.mir
@@ -47,9 +47,8 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2
     ; GFX9-LABEL: name: sgpr96_aligned_src_dst
-    ; GFX9: $sgpr8 = S_MOV_B32 $sgpr2, implicit-def $sgpr6_sgpr7_sgpr8, implicit $sgpr0_sgpr1_sgpr2
-    ; GFX9: $sgpr7 = S_MOV_B32 $sgpr1, implicit $sgpr0_sgpr1_sgpr2
-    ; GFX9: $sgpr6 = S_MOV_B32 $sgpr0, implicit $sgpr0_sgpr1_sgpr2
+    ; GFX9: $sgpr8 = S_MOV_B32 $sgpr2, implicit $sgpr0_sgpr1_sgpr2, implicit-def $sgpr6_sgpr7_sgpr8
+    ; GFX9: $sgpr6_sgpr7 = S_MOV_B64 $sgpr0_sgpr1, implicit $sgpr0_sgpr1_sgpr2
     $sgpr6_sgpr7_sgpr8 = COPY $sgpr0_sgpr1_sgpr2
 ...
 
@@ -59,7 +58,7 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2
     ; GFX9-LABEL: name: sgpr96_aligned_src
-    ; GFX9: $sgpr5 = S_MOV_B32 $sgpr2, implicit-def $sgpr3_sgpr4_sgpr5, implicit $sgpr0_sgpr1_sgpr2
+    ; GFX9: $sgpr5 = S_MOV_B32 $sgpr2, implicit $sgpr0_sgpr1_sgpr2, implicit-def $sgpr3_sgpr4_sgpr5
     ; GFX9: $sgpr4 = S_MOV_B32 $sgpr1, implicit $sgpr0_sgpr1_sgpr2
     ; GFX9: $sgpr3 = S_MOV_B32 $sgpr0, implicit $sgpr0_sgpr1_sgpr2
     $sgpr3_sgpr4_sgpr5 = COPY $sgpr0_sgpr1_sgpr2
@@ -71,7 +70,7 @@
   bb.0:
     liveins: $sgpr3_sgpr4_sgpr5
     ; GFX9-LABEL: name: sgpr96_aligned_dst
-    ; GFX9: $sgpr0 = S_MOV_B32 $sgpr3, implicit-def $sgpr0_sgpr1_sgpr2, implicit $sgpr3_sgpr4_sgpr5
+    ; GFX9: $sgpr0 = S_MOV_B32 $sgpr3, implicit $sgpr3_sgpr4_sgpr5, implicit-def $sgpr0_sgpr1_sgpr2
     ; GFX9: $sgpr1 = S_MOV_B32 $sgpr4, implicit $sgpr3_sgpr4_sgpr5
     ; GFX9: $sgpr2 = S_MOV_B32 $sgpr5, implicit $sgpr3_sgpr4_sgpr5
     $sgpr0_sgpr1_sgpr2 = COPY $sgpr3_sgpr4_sgpr5
@@ -83,8 +82,7 @@
   bb.0:
     liveins: $sgpr3_sgpr4_sgpr5
     ; GFX9-LABEL: name: sgpr96_unaligned_src_dst
-    ; GFX9: $sgpr11 = S_MOV_B32 $sgpr5, implicit-def $sgpr9_sgpr10_sgpr11, implicit $sgpr3_sgpr4_sgpr5
-    ; GFX9: $sgpr10 = S_MOV_B32 $sgpr4, implicit $sgpr3_sgpr4_sgpr5
+    ; GFX9: $sgpr10_sgpr11 = S_MOV_B64 $sgpr4_sgpr5, implicit $sgpr3_sgpr4_sgpr5, implicit-def $sgpr9_sgpr10_sgpr11
     ; GFX9: $sgpr9 = S_MOV_B32 $sgpr3, implicit $sgpr3_sgpr4_sgpr5
     $sgpr9_sgpr10_sgpr11 = COPY $sgpr3_sgpr4_sgpr5
 ...
@@ -95,8 +93,7 @@
   bb.0:
     liveins: $sgpr3_sgpr4_sgpr5
     ; GFX9-LABEL: name: sgpr96_killed
-    ; GFX9: $sgpr11 = S_MOV_B32 $sgpr5, implicit-def $sgpr9_sgpr10_sgpr11, implicit $sgpr3_sgpr4_sgpr5
-    ; GFX9: $sgpr10 = S_MOV_B32 $sgpr4, implicit $sgpr3_sgpr4_sgpr5
+    ; GFX9: $sgpr10_sgpr11 = S_MOV_B64 $sgpr4_sgpr5, implicit $sgpr3_sgpr4_sgpr5, implicit-def $sgpr9_sgpr10_sgpr11
     ; GFX9: $sgpr9 = S_MOV_B32 $sgpr3, implicit killed $sgpr3_sgpr4_sgpr5
     $sgpr9_sgpr10_sgpr11 = COPY killed $sgpr3_sgpr4_sgpr5
 ...
@@ -107,7 +104,7 @@
   bb.0:
     liveins: $sgpr4_sgpr5_sgpr6_sgpr7
     ; GFX9-LABEL: name: sgpr128_forward
-    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr4_sgpr5, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4_sgpr5_sgpr6_sgpr7
+    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr4_sgpr5, implicit $sgpr4_sgpr5_sgpr6_sgpr7, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3
     ; GFX9: $sgpr2_sgpr3 = S_MOV_B64 $sgpr6_sgpr7, implicit $sgpr4_sgpr5_sgpr6_sgpr7
     $sgpr0_sgpr1_sgpr2_sgpr3 = COPY $sgpr4_sgpr5_sgpr6_sgpr7
 ...
@@ -118,7 +115,7 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3
     ; GFX9-LABEL: name: sgpr128_backward
-    ; GFX9: $sgpr6_sgpr7 = S_MOV_B64 $sgpr2_sgpr3, implicit-def $sgpr4_sgpr5_sgpr6_sgpr7, implicit $sgpr0_sgpr1_sgpr2_sgpr3
+    ; GFX9: $sgpr6_sgpr7 = S_MOV_B64 $sgpr2_sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3, implicit-def $sgpr4_sgpr5_sgpr6_sgpr7
     ; GFX9: $sgpr4_sgpr5 = S_MOV_B64 $sgpr0_sgpr1, implicit $sgpr0_sgpr1_sgpr2_sgpr3
     $sgpr4_sgpr5_sgpr6_sgpr7 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
 ...
@@ -129,7 +126,7 @@
   bb.0:
     liveins: $sgpr4_sgpr5_sgpr6_sgpr7
     ; GFX9-LABEL: name: sgpr128_killed
-    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr4_sgpr5, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3, implicit $sgpr4_sgpr5_sgpr6_sgpr7
+    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr4_sgpr5, implicit $sgpr4_sgpr5_sgpr6_sgpr7, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3
     ; GFX9: $sgpr2_sgpr3 = S_MOV_B64 $sgpr6_sgpr7, implicit killed $sgpr4_sgpr5_sgpr6_sgpr7
     $sgpr0_sgpr1_sgpr2_sgpr3 = COPY killed $sgpr4_sgpr5_sgpr6_sgpr7
 ...
@@ -140,10 +137,8 @@
   bb.0:
     liveins: $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12
     ; GFX9-LABEL: name: sgpr160_forward
-    ; GFX9: $sgpr0 = S_MOV_B32 $sgpr8, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12
-    ; GFX9: $sgpr1 = S_MOV_B32 $sgpr9, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12
-    ; GFX9: $sgpr2 = S_MOV_B32 $sgpr10, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12
-    ; GFX9: $sgpr3 = S_MOV_B32 $sgpr11, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12
+    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr8_sgpr9, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
+    ; GFX9: $sgpr2_sgpr3 = S_MOV_B64 $sgpr10_sgpr11, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12
     ; GFX9: $sgpr4 = S_MOV_B32 $sgpr12, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12
     $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4 = COPY $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12
 ...
@@ -154,11 +149,9 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
     ; GFX9-LABEL: name: sgpr160_backward
-    ; GFX9: $sgpr12 = S_MOV_B32 $sgpr4, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
-    ; GFX9: $sgpr11 = S_MOV_B32 $sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
-    ; GFX9: $sgpr10 = S_MOV_B32 $sgpr2, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
-    ; GFX9: $sgpr9 = S_MOV_B32 $sgpr1, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
-    ; GFX9: $sgpr8 = S_MOV_B32 $sgpr0, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
+    ; GFX9: $sgpr12 = S_MOV_B32 $sgpr4, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12
+    ; GFX9: $sgpr10_sgpr11 = S_MOV_B64 $sgpr2_sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
+    ; GFX9: $sgpr8_sgpr9 = S_MOV_B64 $sgpr0_sgpr1, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
     $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12 = COPY $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
 ...
 
@@ -168,11 +161,9 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
     ; GFX9-LABEL: name: sgpr160_killed
-    ; GFX9: $sgpr12 = S_MOV_B32 $sgpr4, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
-    ; GFX9: $sgpr11 = S_MOV_B32 $sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
-    ; GFX9: $sgpr10 = S_MOV_B32 $sgpr2, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
-    ; GFX9: $sgpr9 = S_MOV_B32 $sgpr1, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
-    ; GFX9: $sgpr8 = S_MOV_B32 $sgpr0, implicit killed $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
+    ; GFX9: $sgpr12 = S_MOV_B32 $sgpr4, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12
+    ; GFX9: $sgpr10_sgpr11 = S_MOV_B64 $sgpr2_sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
+    ; GFX9: $sgpr8_sgpr9 = S_MOV_B64 $sgpr0_sgpr1, implicit killed $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
     $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12 = COPY killed $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4
 ...
 
@@ -183,7 +174,7 @@
   bb.0:
     liveins: $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13
     ; GFX9-LABEL: name: sgpr192_forward
-    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr8_sgpr9, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13
+    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr8_sgpr9, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
     ; GFX9: $sgpr2_sgpr3 = S_MOV_B64 $sgpr10_sgpr11, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13
     ; GFX9: $sgpr4_sgpr5 = S_MOV_B64 $sgpr12_sgpr13, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13
     $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5 = COPY $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13
@@ -195,7 +186,7 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
     ; GFX9-LABEL: name: sgpr192_backward
-    ; GFX9: $sgpr12_sgpr13 = S_MOV_B64 $sgpr4_sgpr5, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
+    ; GFX9: $sgpr12_sgpr13 = S_MOV_B64 $sgpr4_sgpr5, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13
     ; GFX9: $sgpr10_sgpr11 = S_MOV_B64 $sgpr2_sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
     ; GFX9: $sgpr8_sgpr9 = S_MOV_B64 $sgpr0_sgpr1, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
     $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13 = COPY $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
@@ -207,7 +198,7 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
     ; GFX9-LABEL: name: sgpr192_killed
-    ; GFX9: $sgpr12_sgpr13 = S_MOV_B64 $sgpr4_sgpr5, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
+    ; GFX9: $sgpr12_sgpr13 = S_MOV_B64 $sgpr4_sgpr5, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13
     ; GFX9: $sgpr10_sgpr11 = S_MOV_B64 $sgpr2_sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
     ; GFX9: $sgpr8_sgpr9 = S_MOV_B64 $sgpr0_sgpr1, implicit killed $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
     $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13 = COPY killed $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5
@@ -219,7 +210,7 @@
   bb.0:
     liveins: $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9-LABEL: name: sgpr256_forward
-    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr8_sgpr9, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr8_sgpr9, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
     ; GFX9: $sgpr2_sgpr3 = S_MOV_B64 $sgpr10_sgpr11, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9: $sgpr4_sgpr5 = S_MOV_B64 $sgpr12_sgpr13, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9: $sgpr6_sgpr7 = S_MOV_B64 $sgpr14_sgpr15, implicit $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
@@ -232,7 +223,7 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
     ; GFX9-LABEL: name: sgpr256_backward
-    ; GFX9: $sgpr14_sgpr15 = S_MOV_B64 $sgpr6_sgpr7, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
+    ; GFX9: $sgpr14_sgpr15 = S_MOV_B64 $sgpr6_sgpr7, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9: $sgpr12_sgpr13 = S_MOV_B64 $sgpr4_sgpr5, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
     ; GFX9: $sgpr10_sgpr11 = S_MOV_B64 $sgpr2_sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
     ; GFX9: $sgpr8_sgpr9 = S_MOV_B64 $sgpr0_sgpr1, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
@@ -245,7 +236,7 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
     ; GFX9-LABEL: name: sgpr256_killed
-    ; GFX9: $sgpr14_sgpr15 = S_MOV_B64 $sgpr6_sgpr7, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
+    ; GFX9: $sgpr14_sgpr15 = S_MOV_B64 $sgpr6_sgpr7, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7, implicit-def $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9: $sgpr12_sgpr13 = S_MOV_B64 $sgpr4_sgpr5, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
     ; GFX9: $sgpr10_sgpr11 = S_MOV_B64 $sgpr2_sgpr3, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
     ; GFX9: $sgpr8_sgpr9 = S_MOV_B64 $sgpr0_sgpr1, implicit killed $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7
@@ -258,7 +249,7 @@
   bb.0:
     liveins: $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9-LABEL: name: sgpr512_forward
-    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr16_sgpr17, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15, implicit $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
+    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr16_sgpr17, implicit $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9: $sgpr2_sgpr3 = S_MOV_B64 $sgpr18_sgpr19, implicit $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9: $sgpr4_sgpr5 = S_MOV_B64 $sgpr20_sgpr21, implicit $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9: $sgpr6_sgpr7 = S_MOV_B64 $sgpr22_sgpr23, implicit $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
@@ -275,7 +266,7 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9-LABEL: name: sgpr512_backward
-    ; GFX9: $sgpr30_sgpr31 = S_MOV_B64 $sgpr14_sgpr15, implicit-def $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+    ; GFX9: $sgpr30_sgpr31 = S_MOV_B64 $sgpr14_sgpr15, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15, implicit-def $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9: $sgpr28_sgpr29 = S_MOV_B64 $sgpr12_sgpr13, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9: $sgpr26_sgpr27 = S_MOV_B64 $sgpr10_sgpr11, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9: $sgpr24_sgpr25 = S_MOV_B64 $sgpr8_sgpr9, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
@@ -292,7 +283,7 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9-LABEL: name: sgpr512_killed
-    ; GFX9: $sgpr30_sgpr31 = S_MOV_B64 $sgpr14_sgpr15, implicit-def $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+    ; GFX9: $sgpr30_sgpr31 = S_MOV_B64 $sgpr14_sgpr15, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15, implicit-def $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9: $sgpr28_sgpr29 = S_MOV_B64 $sgpr12_sgpr13, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9: $sgpr26_sgpr27 = S_MOV_B64 $sgpr10_sgpr11, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
     ; GFX9: $sgpr24_sgpr25 = S_MOV_B64 $sgpr8_sgpr9, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
@@ -309,7 +300,7 @@
   bb.0:
     liveins: $sgpr32_sgpr33_sgpr34_sgpr35_sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63
     ; GFX9-LABEL: name: sgpr1024_forward
-    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr32_sgpr33, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31, implicit $sgpr32_sgpr33_sgpr34_sgpr35_sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63
+    ; GFX9: $sgpr0_sgpr1 = S_MOV_B64 $sgpr32_sgpr33, implicit $sgpr32_sgpr33_sgpr34_sgpr35_sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63, implicit-def $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9: $sgpr2_sgpr3 = S_MOV_B64 $sgpr34_sgpr35, implicit $sgpr32_sgpr33_sgpr34_sgpr35_sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63
     ; GFX9: $sgpr4_sgpr5 = S_MOV_B64 $sgpr36_sgpr37, implicit $sgpr32_sgpr33_sgpr34_sgpr35_sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63
     ; GFX9: $sgpr6_sgpr7 = S_MOV_B64 $sgpr38_sgpr39, implicit $sgpr32_sgpr33_sgpr34_sgpr35_sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63
@@ -334,7 +325,7 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9-LABEL: name: sgpr1024_backward
-    ; GFX9: $sgpr62_sgpr63 = S_MOV_B64 $sgpr30_sgpr31, implicit-def $sgpr32_sgpr33_sgpr34_sgpr35_sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
+    ; GFX9: $sgpr62_sgpr63 = S_MOV_B64 $sgpr30_sgpr31, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31, implicit-def $sgpr32_sgpr33_sgpr34_sgpr35_sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63
     ; GFX9: $sgpr60_sgpr61 = S_MOV_B64 $sgpr28_sgpr29, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9: $sgpr58_sgpr59 = S_MOV_B64 $sgpr26_sgpr27, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9: $sgpr56_sgpr57 = S_MOV_B64 $sgpr24_sgpr25, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
@@ -359,7 +350,7 @@
   bb.0:
     liveins: $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9-LABEL: name: sgpr1024_killed
-    ; GFX9: $sgpr62_sgpr63 = S_MOV_B64 $sgpr30_sgpr31, implicit-def $sgpr32_sgpr33_sgpr34_sgpr35_sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
+    ; GFX9: $sgpr62_sgpr63 = S_MOV_B64 $sgpr30_sgpr31, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31, implicit-def $sgpr32_sgpr33_sgpr34_sgpr35_sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43_sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51_sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59_sgpr60_sgpr61_sgpr62_sgpr63
     ; GFX9: $sgpr60_sgpr61 = S_MOV_B64 $sgpr28_sgpr29, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9: $sgpr58_sgpr59 = S_MOV_B64 $sgpr26_sgpr27, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31
     ; GFX9: $sgpr56_sgpr57 = S_MOV_B64 $sgpr24_sgpr25, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15_sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31