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view llvm/test/Transforms/NewGVN/verify-memoryphi.ll @ 201:a96fbbdf2d0f

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Fri, 04 Jun 2021 21:07:06 +0900
parents 1d019706d866
children c4bab56944e8
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; Skip dead MemoryPhis when performing memory congruency verification
; in NewGVN.
; RUN: opt -S -newgvn %s | FileCheck %s
; REQUIRES: asserts

; CHECK: define void @tinkywinky() {
; CHECK-NEXT: entry:
; CHECK-NEXT:   br i1 false, label %body, label %end
; CHECK:      body:
; CHECK-NEXT:   store i8 undef, i8* null
; CHECK-NEXT:   br label %end
; CHECK:      end:
; CHECK-NEXT:   ret void
; CHECK-NEXT: }

declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)

define void @tinkywinky() {
entry:
  call void @llvm.lifetime.start.p0i8(i64 4, i8* undef)
  br i1 false, label %body, label %end

body:
  call void @llvm.lifetime.start.p0i8(i64 4, i8* undef)
  br label %end

end:
  ret void
}