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43f51aeca8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138660 91177308-0d34-0410-b5e6-96231b3b80d8
14 lines
322 B
LLVM
14 lines
322 B
LLVM
; RUN: llc < %s -march=x86-64 -mcpu=core2 | FileCheck %s
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; Basic 128-bit cmpxchg
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define void @t1(i128* nocapture %p) nounwind ssp {
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entry:
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; CHECK movl $1, %ebx
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; CHECK: lock
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; CHECK-NEXT: cmpxchg16b
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%r = cmpxchg i128* %p, i128 0, i128 1 seq_cst
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ret void
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}
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; FIXME: Handle 128-bit atomicrmw/load atomic/store atomic
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