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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64-unknown-unknown -run-pass=aarch64-prelegalizer-combiner -verify-machineinstrs -o - %s | FileCheck %s
# Test unary_op(undef) -> 0 combines
...
---
name: abs_scalar
tracksRegLiveness: true
body: |
bb.0:
liveins: $w0
; CHECK-LABEL: name: abs_scalar
; CHECK: liveins: $w0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: %abs:_(s32) = G_CONSTANT i32 0
; CHECK-NEXT: $w0 = COPY %abs(s32)
; CHECK-NEXT: RET_ReallyLR implicit $w0
%undef:_(s32) = G_IMPLICIT_DEF
%abs:_(s32) = G_ABS %undef
$w0 = COPY %abs(s32)
RET_ReallyLR implicit $w0
...
---
name: abs_vector
tracksRegLiveness: true
body: |
bb.0:
liveins: $d0
; CHECK-LABEL: name: abs_vector
; CHECK: liveins: $d0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[C:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; CHECK-NEXT: %abs:_(<2 x s32>) = G_BUILD_VECTOR [[C]](s32), [[C]](s32)
; CHECK-NEXT: $d0 = COPY %abs(<2 x s32>)
; CHECK-NEXT: RET_ReallyLR implicit $d0
%undef:_(<2 x s32>) = G_IMPLICIT_DEF
%abs:_(<2 x s32>) = G_ABS %undef
$d0 = COPY %abs(<2 x s32>)
RET_ReallyLR implicit $d0
...
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