llvm/test/CodeGen/AMDGPU/fold-operands-order.mir

# RUN: llc -mtriple=amdgcn--amdhsa -mcpu=hawaii -verify-machineinstrs -run-pass si-fold-operands -o - %s | FileCheck -check-prefix=GCN %s
...
---

# Blocks should be processed in program order to make sure folds
# aren't made in users before the def is seen.

# GCN-LABEL: name: mov_in_use_list_2x{{$}}
# GCN: %3:vgpr_32 = COPY undef %0


name: mov_in_use_list_2x
tracksRegLiveness: true
registers:
  - { id: 0, class: vgpr_32, preferred-register: '' }
  - { id: 1, class: vgpr_32, preferred-register: '' }
  - { id: 2, class: vgpr_32, preferred-register: '' }
  - { id: 3, class: vgpr_32, preferred-register: '' }
liveins:
body:             |
  bb.0:
    successors: %bb.2

    S_BRANCH %bb.2

  bb.1:
    successors: %bb.2

    %2 = COPY %1
    %3 = V_XOR_B32_e64 killed %2, undef %0, implicit $exec
    S_NOP 0, implicit %3

  bb.2:
    successors: %bb.1

    %1 = V_MOV_B32_e32 0, implicit $exec
    S_BRANCH %bb.1

...