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IR: Make metadata typeless in assembly
[oota-llvm.git]
/
test
/
Analysis
/
BasicAA
/
cas.ll
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; RUN: opt < %s -basicaa -gvn -instcombine -S | FileCheck %s
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@flag0 = internal global i32 zeroinitializer
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@turn = internal global i32 zeroinitializer
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; CHECK: ret i32 0
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define i32 @main() {
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%a = load i32* @flag0
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%b = atomicrmw xchg i32* @turn, i32 1 monotonic
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%c = load i32* @flag0
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%d = sub i32 %a, %c
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ret i32 %d
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}