test/CodeGen/AMDGPU/debug-independence-dead-mi-elimination.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -run-pass=dead-mi-elimination -o - %s | FileCheck %s
# RUN: llc -mtriple=amdgcn -mcpu=gfx900 -run-pass=dead-mi-elimination -o - %s -debugify-and-strip-all-safe | FileCheck %s

# Ensure that references in debug instructions to register results in dead
# instructions do not prevent DCE.

---
name:            func
tracksRegLiveness: true
body:             |
  bb.0:
  liveins: $vgpr0
    ; GCN-LABEL: name: func
    ; GCN: liveins: $vgpr0
    ; GCN-NEXT: {{  $}}
    ; GCN-NEXT: SI_RETURN implicit $vgpr0
    ; CHECK-LABEL: name: func
    ; CHECK: liveins: $vgpr0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: SI_RETURN implicit $vgpr0
  $sgpr0 = S_MOV_B32 0
  SI_RETURN implicit $vgpr0
...