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19 lines
495 B
19 lines
495 B
4 months ago
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; RUN: llc < %s -mtriple=armv7-apple-darwin -verify-machineinstrs | FileCheck %s -check-prefix=ARM
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; RUN: llc < %s -mtriple=thumbv7-apple-darwin -verify-machineinstrs | 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-LABEL: t:
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; ARM: ldrexb
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; ARM: strexb
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; ARM: clrex
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; T2-LABEL: t:
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; T2: ldrexb
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; T2: strexb
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; T2: clrex
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%tmp0 = cmpxchg i8* %a, i8 %b, i8 %c monotonic monotonic
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%tmp1 = extractvalue { i8, i1 } %tmp0, 0
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ret i8 %tmp1
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}
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