src/third_party/llvm-project/llvm/test/CodeGen/MIR/AArch64/mirCanonCopyCopyProp.mir

# RUN: llc -mtriple=arm64-apple-ios11.0.0 -o - -run-pass mir-canonicalizer %s | FileCheck %s

...
---
name: Proc8
stack:
  - { id: 0, type: default, offset: 0, size: 4, alignment: 4,
      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -4, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 1, type: default, offset: 0, size: 8, alignment: 8,
      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -16, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 2, type: default, offset: 0, size: 8, alignment: 8,
      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -24, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 3, type: default, offset: 0, size: 8, alignment: 8,
      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -32, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 4, type: default, offset: 0, size: 8, alignment: 8,
      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -40, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 5, type: default, offset: 0, size: 8, alignment: 8,
      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -48, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
  - { id: 6, type: default, offset: 0, size: 8, alignment: 8,
      stack-id: 0, callee-saved-register: '', callee-saved-restored: true,
      local-offset: -56, debug-info-variable: '', debug-info-expression: '',
      debug-info-location: '' }
constants:
body: |
  bb.0:
    liveins: $x0, $x1, $d0, $d1

    %42:gpr32 = LDRWui %stack.0, 0 :: (dereferenceable load 8)

    ;CHECK: %namedVReg1352:gpr32 = LDRWui %stack.0, 0 :: (dereferenceable load 8)
    ;CHECK: $w0 = COPY %namedVReg1352
    ;CHECK: RET_ReallyLR implicit $w0

    %vreg1234:gpr32 = COPY %42
    %vreg1235:gpr32 = COPY %vreg1234
    %vreg1236:gpr32 = COPY %vreg1235
    $w0 = COPY %vreg1236
    RET_ReallyLR implicit $w0

...