llvm/llvm/test/tools/llvm-reduce/mir/tracks-reg-liveness.mir

# REQUIRES: amdgpu-registered-target
# RUN: llvm-reduce -simplify-mir --delta-passes=instructions -mtriple=amdgcn-amd-amdhsa --test FileCheck --test-arg --check-prefix=CHECK-INTERESTINGNESS --test-arg %s --test-arg --input-file %s -o %t 2> %t.log
# RUN: FileCheck --check-prefix=RESULT %s < %t

# CHECK-INTERESTINGNESS: V_MOV_B32_e32 $vgpr0
# CHECK-INTERESTINGNESS: S_NOP 0

# The block liveins list needs to be carried through even though this
# tracksRegLiveness is false

# RESULT: bb.0:
# RESULT-NEXT: liveins: $vgpr0, $vgpr1_vgpr2
# RESULT: %0:vgpr_32 = V_MOV_B32_e32 $vgpr0, implicit $exec
# RESULT-NEXT: S_NOP 0
# RESULT-NEXT: S_ENDPGM 0, implicit %0, implicit %0

---
name: func
tracksRegLiveness: false
body:             |
  bb.0:
    liveins: $vgpr0, $vgpr1_vgpr2
    S_WAITCNT 0
    %0:vgpr_32 = V_MOV_B32_e32 $vgpr0, implicit $exec
    %1:vgpr_32 = V_MOV_B32_e32 $vgpr1, implicit $exec
    S_NOP 0
    S_ENDPGM 0, implicit %0, implicit %1
...