test/CodeGen/AMDGPU/debug-independence-exec-masking.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 6
# REQUIRES: asserts
# RUN: llc -mtriple=amdgcn -mcpu=gfx1030 -verify-machineinstrs -run-pass si-optimize-exec-masking %s -o - | FileCheck %s

# Ensure that debug instructions between a v_cmp and s_and_saveexec do not
# crash si-optimize-exec-masking when walking live reg units backwards in
# isRegisterInUseBetween.

---
name: debug_independence_exec_masking
tracksRegLiveness: true
body:             |
  bb.0:
    liveins: $vgpr0
    ; CHECK-LABEL: name: debug_independence_exec_masking
    ; CHECK: liveins: $vgpr0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: DBG_VALUE $sgpr0, $noreg
    ; CHECK-NEXT: $sgpr2 = S_MOV_B32 $exec_lo
    ; CHECK-NEXT: V_CMPX_LT_F32_nosdst_e64 0, 953267991, 2, $vgpr0, 0, implicit-def $exec, implicit $mode, implicit $exec
    ; CHECK-NEXT: S_ENDPGM 0
    renamable $sgpr0 = V_CMP_LT_F32_e64 0, 953267991, 2, $vgpr0, 0, implicit $mode, implicit $exec
    DBG_VALUE $sgpr0, $noreg
    $sgpr2 = S_AND_SAVEEXEC_B32 $sgpr0, implicit-def $exec, implicit-def $scc, implicit $exec
    S_ENDPGM 0
...