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ca55ee03b0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84125 91177308-0d34-0410-b5e6-96231b3b80d8
17 lines
398 B
LLVM
17 lines
398 B
LLVM
; RUN: opt -gvn -instcombine -S < %s | FileCheck %s
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declare i8 @llvm.atomic.load.add.i8.p0i8(i8*, i8)
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define i8 @foo(i8* %ptr) {
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%P = getelementptr i8* %ptr, i32 0
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%Q = getelementptr i8* %ptr, i32 1
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; CHECK: getelementptr
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%X = load i8* %P
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%Y = call i8 @llvm.atomic.load.add.i8.p0i8(i8* %Q, i8 1)
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%Z = load i8* %P
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; CHECK-NOT: = load
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%A = sub i8 %X, %Z
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ret i8 %A
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; CHECK: ret i8 0
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}
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