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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
# RUN: llc -mtriple=aarch64-- -aarch64-enable-subreg-liveness-tracking=false -run-pass=init-undef -o - %s | FileCheck %s
# RUN: llc -mtriple=aarch64-- -aarch64-enable-subreg-liveness-tracking=true -run-pass=init-undef -o - %s | FileCheck %s
---
name: test_stxp_undef
body: |
bb.0:
liveins: $x0, $x1
; CHECK-LABEL: name: test_stxp_undef
; CHECK: liveins: $x0, $x1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: [[COPY:%[0-9]+]]:gpr64 = COPY $x1
; CHECK-NEXT: [[COPY1:%[0-9]+]]:gpr64common = COPY $x0
; CHECK-NEXT: [[DEF:%[0-9]+]]:gpr64 = IMPLICIT_DEF
; CHECK-NEXT: [[INIT_UNDEF:%[0-9]+]]:gpr64 = INIT_UNDEF
; CHECK-NEXT: early-clobber %3:gpr32 = STXPX killed [[INIT_UNDEF]], [[COPY]], [[COPY1]] :: (volatile store (s128))
; CHECK-NEXT: $w0 = COPY %3
; CHECK-NEXT: RET_ReallyLR implicit $w0
%1:gpr64 = COPY $x1
%0:gpr64common = COPY $x0
%3:gpr64 = IMPLICIT_DEF
early-clobber %2:gpr32 = STXPX killed %3, %1, %0 :: (volatile store (s128))
$w0 = COPY %2
RET_ReallyLR implicit $w0
...
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