llvm/test/CodeGen/AMDGPU/fold-omod-crash.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -run-pass=si-fold-operands %s -verify-machineinstrs -o - | FileCheck %s -check-prefix=GFX9

# When V_ADD_F32 is replaced with an output modifier on V_RSQ_F32, check that
# the kill flag is cleared on the use of %4 in V_MUL_F32.
---
name: main
tracksRegLiveness: true
machineFunctionInfo:
  mode:
    ieee: false
    fp32-input-denormals: false
    fp32-output-denormals: false
body: |
  ; GFX9-LABEL: name: main
  ; GFX9: bb.0:
  ; GFX9-NEXT:   successors: %bb.1(0x80000000)
  ; GFX9-NEXT:   liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7, $vgpr8, $vgpr9
  ; GFX9-NEXT: {{  $}}
  ; GFX9-NEXT:   [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
  ; GFX9-NEXT:   [[DEF1:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
  ; GFX9-NEXT:   [[V_RSQ_F32_e64_:%[0-9]+]]:vgpr_32 = nofpexcept V_RSQ_F32_e64 0, undef [[DEF]], 0, 1, implicit $mode, implicit $exec
  ; GFX9-NEXT: {{  $}}
  ; GFX9-NEXT: bb.1:
  ; GFX9-NEXT:   successors: %bb.1(0x40000000), %bb.2(0x40000000)
  ; GFX9-NEXT: {{  $}}
  ; GFX9-NEXT:   [[DEF2:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
  ; GFX9-NEXT:   [[V_MUL_F32_e64_:%[0-9]+]]:vgpr_32 = V_MUL_F32_e64 0, killed undef [[DEF2]], 0, [[V_RSQ_F32_e64_]], 0, 0, implicit $mode, implicit $exec
  ; GFX9-NEXT:   SI_LOOP undef [[DEF1]], %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
  ; GFX9-NEXT:   S_BRANCH %bb.2
  ; GFX9-NEXT: {{  $}}
  ; GFX9-NEXT: bb.2:
  ; GFX9-NEXT:   S_ENDPGM 0
  bb.0:
    liveins: $vgpr0, $vgpr1, $vgpr2, $vgpr3, $vgpr4, $vgpr5, $vgpr6, $vgpr7, $vgpr8, $vgpr9

    %0:vgpr_32 = IMPLICIT_DEF
    %1:sreg_64 = IMPLICIT_DEF
    %2:vgpr_32 = nofpexcept V_RSQ_F32_e64 0, undef %0, 0, 0, implicit $mode, implicit $exec

  bb.1:
    %3:vgpr_32 = IMPLICIT_DEF
    %4:vgpr_32 = nsz reassoc nofpexcept V_ADD_F32_e64 0, undef %2, 0, undef %2, 0, 0, implicit $mode, implicit $exec
    %5:vgpr_32 = V_MUL_F32_e64 0, killed undef %3, 0, killed %4, 0, 0, implicit $mode, implicit $exec
    SI_LOOP undef %1, %bb.1, implicit-def dead $exec, implicit-def dead $scc, implicit $exec
    S_BRANCH %bb.2

  bb.2:
    S_ENDPGM 0
...