llvm/test/CodeGen/AMDGPU/undef-copy-propagation.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -o - %s -march=amdgcn -mcpu=gfx1010 -run-pass=machine-cp -verify-machineinstrs | FileCheck %s

---
name: undef_copy_propagation
tracksRegLiveness: true
body:    |
  bb.0:

    ; CHECK-LABEL: name: undef_copy_propagation
    ; CHECK: renamable $vgpr0 = COPY undef renamable $sgpr42, implicit $exec
    ; CHECK-NEXT: renamable $vgpr1 = COPY undef $sgpr42
    ; CHECK-NEXT: renamable $vgpr2 = COPY undef $sgpr42
    ; CHECK-NEXT: renamable $vgpr3 = COPY undef $sgpr42
    ; CHECK-NEXT: EXP_DONE 0, killed $vgpr0, killed $vgpr1, killed $vgpr2, killed $vgpr3, -1, -1, 15, implicit $exec
    renamable $vgpr0 = COPY undef renamable $sgpr42, implicit $exec
    renamable $vgpr1 = COPY renamable $vgpr0
    renamable $vgpr2 = COPY renamable $vgpr0
    renamable $vgpr3 = COPY renamable $vgpr0

    EXP_DONE 0, killed $vgpr0, killed $vgpr1, killed $vgpr2, killed $vgpr3, -1, -1, 15, implicit $exec
...