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view llvm/test/Transforms/GVN/pr36063.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 1f2b6ac9f198
line wrap: on
line source

; RUN: opt < %s -memcpyopt -mldst-motion -gvn -S | FileCheck %s

define void @foo(i8* %ret, i1 %x) {
  %a = alloca i8
  br i1 %x, label %yes, label %no

yes:                                              ; preds = %0
  %gepa = getelementptr i8, i8* %a, i64 0
  store i8 5, i8* %gepa
  br label %out

no:                                               ; preds = %0
  %gepb = getelementptr i8, i8* %a, i64 0
  store i8 5, i8* %gepb
  br label %out

out:                                              ; preds = %no, %yes
  %tmp = load i8, i8* %a
; CHECK-NOT: undef
  store i8 %tmp, i8* %ret
  ret void
}