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Diffstat (limited to 'test/CodeGen/ARM/atomic-cmp.ll')
| -rw-r--r-- | test/CodeGen/ARM/atomic-cmp.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/atomic-cmp.ll b/test/CodeGen/ARM/atomic-cmp.ll new file mode 100644 index 0000000000..f31aa7bc58 --- /dev/null +++ b/test/CodeGen/ARM/atomic-cmp.ll @@ -0,0 +1,17 @@ +; RUN: llc < %s -mtriple=armv7-apple-darwin | FileCheck %s -check-prefix=ARM +; RUN: llc < %s -mtriple=thumbv7-apple-darwin | FileCheck %s -check-prefix=T2 +; rdar://8964854 + +define i8 @t(i8* %a, i8 %b, i8 %c) nounwind { +; ARM: t: +; ARM: ldrexb +; ARM: strexb + +; T2: t: +; T2: ldrexb +; T2: strexb + %tmp0 = tail call i8 @llvm.atomic.cmp.swap.i8.p0i8(i8* %a, i8 %b, i8 %c) + ret i8 %tmp0 +} + +declare i8 @llvm.atomic.cmp.swap.i8.p0i8(i8* nocapture, i8, i8) nounwind |