llvm/test/CodeGen/AArch64/GlobalISel/postlegalizer-combiner-store-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-NOT: G_STORE
    ; CHECK: RET_ReallyLR
    %0:_(p0) = COPY $x0
    %1:_(s32) = G_IMPLICIT_DEF
    G_STORE %1(s32), %0(p0) :: (store (s32))
    RET_ReallyLR

...