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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AMDGPU/shrink-v-cmp-wave32-dead-vcc-lo.mir
derek.holloway 7502bf64a4
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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
# RUN: llc -mtriple=amdgcn-amd-amdhsa -run-pass=si-shrink-instructions -mcpu=gfx1100 -o - %s | FileCheck %s
# Make sure there's no crash when shrinking a v_cmp on a wave32 target
# when the def is dead. Previously the vcc implicit def wasn't
# properly replaced with vcc_lo, so the expected implicit operand was
# not found in the shrunk instruction.
---
name: shrink_v_cmp_vcc_lo_dead
tracksRegLiveness: true
tracksDebugUserValues: true
frameInfo:
maxAlignment: 1
maxCallFrameSize: 0
isCalleeSavedInfoValid: true
machineFunctionInfo:
maxKernArgAlign: 1
stackPtrOffsetReg: '$sgpr32'
body: |
bb.0:
liveins: $vgpr0, $vgpr1
; CHECK-LABEL: name: shrink_v_cmp_vcc_lo_dead
; CHECK: liveins: $vgpr0, $vgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: V_CMP_LT_U32_e32 $vgpr0, $vgpr1, implicit-def dead $vcc_lo, implicit $exec
; CHECK-NEXT: S_SETPC_B64_return undef $sgpr30_sgpr31
dead renamable $vcc_lo = V_CMP_LT_U32_e64 $vgpr0, $vgpr1, implicit $exec
S_SETPC_B64_return undef $sgpr30_sgpr31
...
---
name: shrink_v_cmp_vcc_lo_live
tracksRegLiveness: true
tracksDebugUserValues: true
frameInfo:
maxAlignment: 1
maxCallFrameSize: 0
isCalleeSavedInfoValid: true
machineFunctionInfo:
maxKernArgAlign: 1
stackPtrOffsetReg: '$sgpr32'
body: |
bb.0:
liveins: $vgpr0, $vgpr1
; CHECK-LABEL: name: shrink_v_cmp_vcc_lo_live
; CHECK: liveins: $vgpr0, $vgpr1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: V_CMP_LT_U32_e32 $vgpr0, $vgpr1, implicit-def $vcc_lo, implicit $exec
; CHECK-NEXT: S_SETPC_B64_return undef $sgpr30_sgpr31, implicit $vcc_lo
renamable $vcc_lo = V_CMP_LT_U32_e64 $vgpr0, $vgpr1, implicit $exec
S_SETPC_B64_return undef $sgpr30_sgpr31, implicit $vcc_lo
...