llvm/test/CodeGen/AArch64/GlobalISel/postlegalizer-combiner-identity.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:            shift_of_zero
alignment:       4
legalized:       true
liveins:
  - { reg: '$w0' }
body:             |
  bb.1.entry:
    liveins: $x0

    ; CHECK-LABEL: name: shift_of_zero
    ; CHECK: %a:_(s64) = COPY $x0
    ; CHECK: $x0 = COPY %a(s64)
    ; CHECK: RET_ReallyLR implicit $x0
    %a:_(s64) = COPY $x0
    %b:_(s64) = G_CONSTANT i64 0
    %res:_(s64) = G_LSHR %a, %b
    $x0 = COPY %res(s64)
    RET_ReallyLR implicit $x0

...