[BranchRelaxation] Fix test for duplicate branch instruction

[gandhi21299]

Summary

This patch is a follow up for D134557, inserting a check
for a duplicate unconditional branch to fall through.

[foad]

llvm/test/CodeGen/AMDGPU/branch-relax-no-terminators.mir

15

This won't survive the next time someone regenerates the checks for this file.

[gandhi21299]

llvm/test/CodeGen/AMDGPU/branch-relax-no-terminators.mir

15

Should I get rid of that specific line then?

[foad]

llvm/test/CodeGen/AMDGPU/branch-relax-no-terminators.mir

15

That already happened when I regenerated the checks for D140012. But it wasn't doing anything useful anyway because it was surrounded by CHECK-NEXT lines which would have failed if an extra S_BRANCH instruction appeared.

[arsenm]

There’s definitely something broken with block handling in update_mir_test_checks

llvm/test/CodeGen/AMDGPU/branch-relax-no-terminators.mir

 # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
 # RUN: llc -verify-machineinstrs -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a --amdgpu-s-branch-bits=5 -run-pass branch-relaxation %s -o - | FileCheck %s
 
 ---
 name:            branch_no_terminators
 alignment:       1
 tracksRegLiveness: true
 liveins:
   - { reg: '$sgpr12' }
 machineFunctionInfo:
   stackPtrOffsetReg: '$sgpr32'
   scratchRSrcReg: '$sgpr0_sgpr1_sgpr2_sgpr3'
 body:             |
   ; CHECK-LABEL: name: branch_no_terminators
-  ; CHECK: bb.0.entry:
-  ; CHECK-NEXT:   successors: %bb.1(0x50000000), %bb.5(0x30000000)
-  ; CHECK-NEXT:   liveins: $sgpr12, $sgpr30, $sgpr31, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   S_WAITCNT 0
-  ; CHECK-NEXT:   $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-  ; CHECK-NEXT:   BUFFER_STORE_DWORD_OFFSET $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec
-  ; CHECK-NEXT:   BUFFER_STORE_DWORD_OFFSET $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 4, 0, 0, 0, implicit $exec
-  ; CHECK-NEXT:   $exec = S_MOV_B64 killed $sgpr4_sgpr5
-  ; CHECK-NEXT:   $vgpr0 = V_WRITELANE_B32 killed $sgpr30, 0, $vgpr0
-  ; CHECK-NEXT:   $vgpr0 = V_WRITELANE_B32 killed $sgpr31, 1, $vgpr0
-  ; CHECK-NEXT:   $vgpr0 = V_WRITELANE_B32 $sgpr33, 2, $vgpr0
-  ; CHECK-NEXT:   $sgpr81 = S_MOV_B32 killed $sgpr12
-  ; CHECK-NEXT:   $vgpr0 = V_WRITELANE_B32 killed $sgpr94, 63, $vgpr0
-  ; CHECK-NEXT:   $vgpr1 = V_WRITELANE_B32 killed $sgpr101, 6, $vgpr1
-  ; CHECK-NEXT:   S_CMP_EQ_U32 killed renamable $sgpr81, 0, implicit-def $scc
-  ; CHECK-NEXT:   S_CBRANCH_SCC0 %bb.1, implicit killed $scc
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.5.entry:
-  ; CHECK-NEXT:   successors: %bb.6(0x80000000)
-  ; CHECK-NEXT:   liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   $exec = S_NOT_B64 $exec, implicit-def dead $scc, implicit-def $vgpr2
-  ; CHECK-NEXT:   BUFFER_STORE_DWORD_OFFSET killed $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.0, addrspace 5)
-  ; CHECK-NEXT:   $vgpr2 = V_WRITELANE_B32 $sgpr0, 0, undef $vgpr2, implicit $sgpr0_sgpr1
-  ; CHECK-NEXT:   $vgpr2 = V_WRITELANE_B32 $sgpr1, 1, $vgpr2, implicit $sgpr0_sgpr1
-  ; CHECK-NEXT:   $sgpr0_sgpr1 = S_GETPC_B64 post-instr-symbol <mcsymbol >
-  ; CHECK-NEXT:   $sgpr0 = S_ADD_U32 $sgpr0, target-flags(<unknown target flag>) <mcsymbol >, implicit-def $scc
-  ; CHECK-NEXT:   $sgpr1 = S_ADDC_U32 $sgpr1, target-flags(<unknown target flag>) <mcsymbol >, implicit-def $scc, implicit $scc
-  ; CHECK-NEXT:   S_SETPC_B64 $sgpr0_sgpr1
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.1:
-  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
-  ; CHECK-NEXT:   liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   $vgpr1 = V_WRITELANE_B32 killed $sgpr81, 7, $vgpr1
-  ; CHECK-NEXT:   $sgpr81 = S_MOV_B32 killed $sgpr82
-  ; CHECK-NEXT:   $sgpr82 = S_MOV_B32 killed $sgpr83
-  ; CHECK-NEXT:   $sgpr83 = S_MOV_B32 killed $sgpr84
-  ; CHECK-NEXT:   $sgpr84 = S_MOV_B32 killed $sgpr85
-  ; CHECK-NEXT:   $sgpr101 = S_MOV_B32 killed $vcc_lo
-  ; CHECK-NEXT:   S_BRANCH %bb.2
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.8:
-  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
-  ; CHECK-NEXT:   liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $vgpr2
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   $sgpr0 = V_READLANE_B32 $vgpr2, 0, implicit-def $sgpr0_sgpr1
-  ; CHECK-NEXT:   $sgpr1 = V_READLANE_B32 killed $vgpr2, 1
-  ; CHECK-NEXT:   $vgpr2 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.0, addrspace 5)
-  ; CHECK-NEXT:   $exec = S_NOT_B64 $exec, implicit-def dead $scc, implicit killed $vgpr2
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.2:
-  ; CHECK-NEXT:   successors: %bb.3(0x04000000), %bb.7(0x7c000000)
-  ; CHECK-NEXT:   liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   INLINEASM &"v_nop_e64\0A    v_nop_e64\0A    v_nop_e64\0A    v_nop_e64\0A    v_nop_e64\0A    v_nop_e64\0A    v_nop_e64\0A    v_nop_e64", 1 /* sideeffect attdialect */, 2097162 /* regdef:SReg_32 */, def renamable $sgpr4
-  ; CHECK-NEXT:   S_CMP_LG_U32 killed renamable $sgpr4, 0, implicit-def $scc
-  ; CHECK-NEXT:   S_CBRANCH_SCC0 %bb.3, implicit killed $scc
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.7:
-  ; CHECK-NEXT:   successors: %bb.8(0x80000000)
-  ; CHECK-NEXT:   liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   $exec = S_NOT_B64 $exec, implicit-def dead $scc, implicit-def $vgpr2
-  ; CHECK-NEXT:   BUFFER_STORE_DWORD_OFFSET killed $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.0, addrspace 5)
-  ; CHECK-NEXT:   $vgpr2 = V_WRITELANE_B32 $sgpr0, 0, undef $vgpr2, implicit $sgpr0_sgpr1
-  ; CHECK-NEXT:   $vgpr2 = V_WRITELANE_B32 $sgpr1, 1, $vgpr2, implicit $sgpr0_sgpr1
-  ; CHECK-NEXT:   $sgpr0_sgpr1 = S_GETPC_B64 post-instr-symbol <mcsymbol >
-  ; CHECK-NEXT:   $sgpr0 = S_ADD_U32 $sgpr0, target-flags(<unknown target flag>) <mcsymbol >, implicit-def $scc
-  ; CHECK-NEXT:   $sgpr1 = S_ADDC_U32 $sgpr1, target-flags(<unknown target flag>) <mcsymbol >, implicit-def $scc, implicit $scc
-  ; CHECK-NEXT:   S_SETPC_B64 $sgpr0_sgpr1
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.3:
-  ; CHECK-NEXT:   successors: %bb.4(0x80000000)
-  ; CHECK-NEXT:   liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   $sgpr4 = S_MOV_B32 killed $sgpr5
-  ; CHECK-NEXT:   $sgpr5 = S_MOV_B32 killed $sgpr6
-  ; CHECK-NEXT:   $sgpr6 = S_MOV_B32 killed $sgpr7
-  ; CHECK-NEXT:   $sgpr7 = S_MOV_B32 killed $sgpr8
-  ; CHECK-NEXT:   $sgpr8 = S_MOV_B32 killed $sgpr9
-  ; CHECK-NEXT:   $sgpr9 = S_MOV_B32 killed $sgpr10
-  ; CHECK-NEXT:   $sgpr10 = S_MOV_B32 killed $sgpr11
-  ; CHECK-NEXT:   S_BRANCH %bb.4
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.6:
-  ; CHECK-NEXT:   successors: %bb.4(0x80000000)
-  ; CHECK-NEXT:   liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $vgpr2, $sgpr33
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   $sgpr0 = V_READLANE_B32 $vgpr2, 0, implicit-def $sgpr0_sgpr1
-  ; CHECK-NEXT:   $sgpr1 = V_READLANE_B32 killed $vgpr2, 1
-  ; CHECK-NEXT:   $vgpr2 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.0, addrspace 5)
-  ; CHECK-NEXT:   $exec = S_NOT_B64 $exec, implicit-def dead $scc, implicit killed $vgpr2
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT: bb.4:
-  ; CHECK-NEXT:   liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $sgpr0, $sgpr1, $sgpr2, $sgpr3, $sgpr32, $sgpr33, $sgpr0_sgpr1_sgpr2_sgpr3
-  ; CHECK-NEXT: {{  $}}
-  ; CHECK-NEXT:   $sgpr101 = V_READLANE_B32 $vgpr1, 6
-  ; CHECK-NEXT:   $sgpr100 = V_READLANE_B32 $vgpr1, 5
-  ; CHECK-NEXT:   $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-  ; CHECK-NEXT:   $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec
-  ; CHECK-NEXT:   $vgpr1 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 4, 0, 0, 0, implicit $exec
-  ; CHECK-NEXT:   $exec = S_MOV_B64 killed $sgpr4_sgpr5
-  ; CHECK-NEXT:   S_WAITCNT 3952
-  ; CHECK-NEXT:   S_SETPC_B64_return undef $sgpr30_sgpr31
+  ; CHECK-LABEL: bb.0.entry:
+  ; CHECK: successors: %bb.1(0x50000000), %bb.5(0x30000000)
+  ; CHECK-NEXT: liveins: $sgpr12, $sgpr30, $sgpr31, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32
+  ; CHECK-NEXT: {{ $}}
+  ; CHECK-NEXT: S_WAITCNT 0
+  ; CHECK-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
+  ; CHECK-NEXT: BUFFER_STORE_DWORD_OFFSET $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec
+  ; CHECK-NEXT: BUFFER_STORE_DWORD_OFFSET $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 4, 0, 0, 0, implicit $exec
+  ; CHECK-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
+  ; CHECK-NEXT: $vgpr0 = V_WRITELANE_B32 killed $sgpr30, 0, $vgpr0
+  ; CHECK-NEXT: $vgpr0 = V_WRITELANE_B32 killed $sgpr31, 1, $vgpr0
+  ; CHECK-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr33, 2, $vgpr0
+  ; CHECK-NEXT: $sgpr81 = S_MOV_B32 killed $sgpr12
+  ; CHECK-NEXT: $vgpr0 = V_WRITELANE_B32 killed $sgpr94, 63, $vgpr0
+  ; CHECK-NEXT: $vgpr1 = V_WRITELANE_B32 killed $sgpr101, 6, $vgpr1
+  ; CHECK-NEXT: S_CMP_EQ_U32 killed renamable $sgpr81, 0, implicit-def $scc
+  ; CHECK-NEXT: S_CBRANCH_SCC0 %bb.1, implicit killed $scc
+  ; CHECK-LABEL: bb.5.entry:
+  ; CHECK: successors: %bb.6(0x80000000)
+  ; CHECK-NEXT: liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3
+  ; CHECK-NEXT: {{ $}}
+  ; CHECK-NEXT: $exec = S_NOT_B64 $exec, implicit-def dead $scc, implicit-def $vgpr2
+  ; CHECK-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.0, addrspace 5)
+  ; CHECK-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr0, 0, undef $vgpr2, implicit $sgpr0_sgpr1
+  ; CHECK-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr1, 1, $vgpr2, implicit $sgpr0_sgpr1
+  ; CHECK-NEXT: $sgpr0_sgpr1 = S_GETPC_B64 post-instr-symbol <mcsymbol >
+  ; CHECK-NEXT: $sgpr0 = S_ADD_U32 $sgpr0, target-flags(<unknown target flag>) <mcsymbol >, implicit-def $scc
+  ; CHECK-NEXT: $sgpr1 = S_ADDC_U32 $sgpr1, target-flags(<unknown target flag>) <mcsymbol >, implicit-def $scc, implicit $scc
+  ; CHECK-NEXT: S_SETPC_B64 $sgpr0_sgpr1
+  ; CHECK-LABEL: bb.1:
+  ; CHECK: successors: %bb.2(0x80000000)
+  ; CHECK-NEXT: liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1
+  ; CHECK-NEXT: {{ $}}
+  ; CHECK-NEXT: $vgpr1 = V_WRITELANE_B32 killed $sgpr81, 7, $vgpr1
+  ; CHECK-NEXT: $sgpr81 = S_MOV_B32 killed $sgpr82
+  ; CHECK-NEXT: $sgpr82 = S_MOV_B32 killed $sgpr83
+  ; CHECK-NEXT: $sgpr83 = S_MOV_B32 killed $sgpr84
+  ; CHECK-NEXT: $sgpr84 = S_MOV_B32 killed $sgpr85
+  ; CHECK-NEXT: $sgpr101 = S_MOV_B32 killed $vcc_lo
+  ; CHECK-NEXT: S_BRANCH %bb.2
+  ; CHECK-LABEL: bb.8:
+  ; CHECK: successors: %bb.2(0x80000000)
+  ; CHECK-NEXT: liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $vgpr2
+  ; CHECK-NEXT: {{ $}}
+  ; CHECK-NEXT: $sgpr0 = V_READLANE_B32 $vgpr2, 0, implicit-def $sgpr0_sgpr1
+  ; CHECK-NEXT: $sgpr1 = V_READLANE_B32 killed $vgpr2, 1
+  ; CHECK-NEXT: $vgpr2 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.0, addrspace 5)
+  ; CHECK-NEXT: $exec = S_NOT_B64 $exec, implicit-def dead $scc, implicit killed $vgpr2
+  ; CHECK-LABEL: bb.2:
+  ; CHECK: successors: %bb.3(0x04000000), %bb.7(0x7c000000)
+  ; CHECK-NEXT: liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1
+  ; CHECK-NEXT: {{ $}}
+  ; CHECK-NEXT: INLINEASM &"v_nop_e64\0A    v_nop_e64\0A    v_nop_e64\0A    v_nop_e64\0A    v_nop_e64\0A    v_nop_e64\0A    v_nop_e64\0A    v_nop_e64", 1 /* sideeffect attdialect */, 2097162 /* regdef:SReg_32 */, def renamable $sgpr4
+  ; CHECK-NEXT: S_CMP_LG_U32 killed renamable $sgpr4, 0, implicit-def $scc
+  ; CHECK-NEXT: S_CBRANCH_SCC0 %bb.3, implicit killed $scc
+  ; CHECK-LABEL: bb.7:
+  ; CHECK: successors: %bb.8(0x80000000)
+  ; CHECK-NEXT: liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1
+  ; CHECK-NEXT: {{ $}}
+  ; CHECK-NEXT: $exec = S_NOT_B64 $exec, implicit-def dead $scc, implicit-def $vgpr2
+  ; CHECK-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.0, addrspace 5)
+  ; CHECK-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr0, 0, undef $vgpr2, implicit $sgpr0_sgpr1
+  ; CHECK-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr1, 1, $vgpr2, implicit $sgpr0_sgpr1
+  ; CHECK-NEXT: $sgpr0_sgpr1 = S_GETPC_B64 post-instr-symbol <mcsymbol >
+  ; CHECK-NEXT: $sgpr0 = S_ADD_U32 $sgpr0, target-flags(<unknown target flag>) <mcsymbol >, implicit-def $scc
+  ; CHECK-NEXT: $sgpr1 = S_ADDC_U32 $sgpr1, target-flags(<unknown target flag>) <mcsymbol >, implicit-def $scc, implicit $scc
+  ; CHECK-NEXT: S_SETPC_B64 $sgpr0_sgpr1
+  ; CHECK-LABEL: bb.3:
+  ; CHECK: successors: %bb.4(0x80000000)
+  ; CHECK-NEXT: liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1
+  ; CHECK-NEXT: {{ $}}
+  ; CHECK-NEXT: $sgpr4 = S_MOV_B32 killed $sgpr5
+  ; CHECK-NEXT: $sgpr5 = S_MOV_B32 killed $sgpr6
+  ; CHECK-NEXT: $sgpr6 = S_MOV_B32 killed $sgpr7
+  ; CHECK-NEXT: $sgpr7 = S_MOV_B32 killed $sgpr8
+  ; CHECK-NEXT: $sgpr8 = S_MOV_B32 killed $sgpr9
+  ; CHECK-NEXT: $sgpr9 = S_MOV_B32 killed $sgpr10
+  ; CHECK-NEXT: $sgpr10 = S_MOV_B32 killed $sgpr11
+  ; CHECK-NEXT: S_BRANCH %bb.4
+  ; CHECK-NOT: S_BRANCH %bb.4
+  ; CHECK-LABEL: bb.6:
+  ; CHECK: successors: %bb.4(0x80000000)
+  ; CHECK-NEXT: liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $vgpr2, $sgpr33
+  ; CHECK-NEXT: {{ $}}
+  ; CHECK-NEXT: $sgpr0 = V_READLANE_B32 $vgpr2, 0, implicit-def $sgpr0_sgpr1
+  ; CHECK-NEXT: $sgpr1 = V_READLANE_B32 killed $vgpr2, 1
+  ; CHECK-NEXT: $vgpr2 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.0, addrspace 5)
+  ; CHECK-NEXT: $exec = S_NOT_B64 $exec, implicit-def dead $scc, implicit killed $vgpr2
+  ; CHECK-LABEL: bb.4:
+  ; CHECK-NEXT: liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $sgpr0, $sgpr1, $sgpr2, $sgpr3, $sgpr32, $sgpr33, $sgpr0_sgpr1_sgpr2_sgpr3
+  ; CHECK-NEXT: {{ $}}
+  ; CHECK-NEXT: $sgpr101 = V_READLANE_B32 $vgpr1, 6
+  ; CHECK-NEXT: $sgpr100 = V_READLANE_B32 $vgpr1, 5
+  ; CHECK-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
+  ; CHECK-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec
+  ; CHECK-NEXT: $vgpr1 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 4, 0, 0, 0, implicit $exec
+  ; CHECK-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
+  ; CHECK-NEXT: S_WAITCNT 3952
+  ; CHECK-NEXT: S_SETPC_B64_return undef $sgpr30_sgpr31
   bb.0.entry:
     successors: %bb.1(0x50000000), %bb.4(0x30000000)
     liveins: $sgpr12, $sgpr30, $sgpr31, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32
 
     S_WAITCNT 0
     $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
     BUFFER_STORE_DWORD_OFFSET $vgpr0, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec
     BUFFER_STORE_DWORD_OFFSET $vgpr1, $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 4, 0, 0, 0, implicit $exec
bb.3:
 
     $sgpr4 = S_MOV_B32 killed $sgpr5
     $sgpr5 = S_MOV_B32 killed $sgpr6
     $sgpr6 = S_MOV_B32 killed $sgpr7
     $sgpr7 = S_MOV_B32 killed $sgpr8
     $sgpr8 = S_MOV_B32 killed $sgpr9
     $sgpr9 = S_MOV_B32 killed $sgpr10
     $sgpr10 = S_MOV_B32 killed $sgpr11
+    S_BRANCH %bb.4
 
   bb.4:
     liveins: $vcc_hi, $vcc_lo, $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, $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, $sgpr64, $sgpr65, $sgpr66, $sgpr67, $sgpr68, $sgpr69, $sgpr70, $sgpr71, $sgpr72, $sgpr73, $sgpr74, $sgpr75, $sgpr76, $sgpr77, $sgpr78, $sgpr79, $sgpr80, $sgpr81, $sgpr82, $sgpr83, $sgpr84, $sgpr85, $sgpr86, $sgpr87, $sgpr88, $sgpr89, $sgpr90, $sgpr91, $sgpr92, $sgpr93, $sgpr94, $sgpr95, $sgpr96, $sgpr97, $sgpr98, $sgpr99, $sgpr100, $sgpr101, $vgpr0, $vgpr1, $sgpr0, $sgpr1, $sgpr2, $sgpr3, $sgpr32, $sgpr33, $sgpr0_sgpr1_sgpr2_sgpr3
 
     $sgpr101 = V_READLANE_B32 $vgpr1, 6
     $sgpr100 = V_READLANE_B32 $vgpr1, 5
     $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
     $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 0, 0, 0, 0, implicit $exec
     $vgpr1 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr32, 4, 0, 0, 0, implicit $exec
     $exec = S_MOV_B64 killed $sgpr4_sgpr5
     S_WAITCNT 3952
     S_SETPC_B64_return undef $sgpr30_sgpr31
 
 ...