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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125023 91177308-0d34-0410-b5e6-96231b3b80d8
18 lines
461 B
LLVM
18 lines
461 B
LLVM
; RUN: llc < %s -mtriple=armv7-apple-darwin | FileCheck %s -check-prefix=ARM
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; RUN: llc < %s -mtriple=thumbv7-apple-darwin | FileCheck %s -check-prefix=T2
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; rdar://8964854
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define i8 @t(i8* %a, i8 %b, i8 %c) nounwind {
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; ARM: t:
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; ARM: ldrexb
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; ARM: strexb
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; T2: t:
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; T2: ldrexb
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; T2: strexb
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%tmp0 = tail call i8 @llvm.atomic.cmp.swap.i8.p0i8(i8* %a, i8 %b, i8 %c)
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ret i8 %tmp0
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}
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declare i8 @llvm.atomic.cmp.swap.i8.p0i8(i8* nocapture, i8, i8) nounwind
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