llvm/test/CodeGen/AArch64/GlobalISel/postlegalizer-combiner-undef.mir

# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple aarch64 -run-pass=aarch64-postlegalizer-combiner -verify-machineinstrs %s -o - | FileCheck %s

...
---
name:            delete_store_undef
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $x0

    ; A store of an implicit def can safely be deleted before or after
    ; legalization.

    ; CHECK-LABEL: name: delete_store_undef
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: RET_ReallyLR
    %0:_(p0) = COPY $x0
    %1:_(s32) = G_IMPLICIT_DEF
    G_STORE %1(s32), %0(p0) :: (store (s32))
    RET_ReallyLR

...
---
name:            delete_add_undef
legalized:       true
tracksRegLiveness: true
body:             |
  bb.1.entry:
    liveins: $x0

    ; CHECK-LABEL: name: delete_add_undef
    ; CHECK: liveins: $x0
    ; CHECK-NEXT: {{  $}}
    ; CHECK-NEXT: [[DEF:%[0-9]+]]:_(s64) = G_IMPLICIT_DEF
    ; CHECK-NEXT: $x0 = COPY [[DEF]](s64)
    ; CHECK-NEXT: RET_ReallyLR
    %0:_(s64) = COPY $x0
    %1:_(s64) = G_IMPLICIT_DEF
    %add:_(s64) = G_ADD %0(s64), %1(s64)
    $x0 = COPY %add
    RET_ReallyLR

...