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| author | Kostya Serebryany <kcc@google.com> | 2013-03-28 11:21:13 +0000 |
|---|---|---|
| committer | Kostya Serebryany <kcc@google.com> | 2013-03-28 11:21:13 +0000 |
| commit | 463aa814182a231e7ac9f10c40d232843104dcf6 (patch) | |
| tree | 642776230dceb30cd9300b89292596630a490e6e /llvm/test | |
| parent | e586170e8666294e94e0867c4b8f155686a719a8 (diff) | |
| download | bcm5719-llvm-463aa814182a231e7ac9f10c40d232843104dcf6.tar.gz bcm5719-llvm-463aa814182a231e7ac9f10c40d232843104dcf6.zip | |
[tsan] make sure memset/memcpy/memmove are not inlined in tsan mode
llvm-svn: 178230
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Instrumentation/ThreadSanitizer/tsan_basic.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/llvm/test/Instrumentation/ThreadSanitizer/tsan_basic.ll b/llvm/test/Instrumentation/ThreadSanitizer/tsan_basic.ll index 33c703b4c9b..0ecff40493a 100644 --- a/llvm/test/Instrumentation/ThreadSanitizer/tsan_basic.ll +++ b/llvm/test/Instrumentation/ThreadSanitizer/tsan_basic.ll @@ -20,3 +20,36 @@ entry: ; CHECK: ret i32 +declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) +declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) +declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) + + +; Check that tsan converts mem intrinsics back to function calls. + +define void @MemCpyTest(i8* nocapture %x, i8* nocapture %y) { +entry: + tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %x, i8* %y, i64 16, i32 4, i1 false) + ret void +; CHECK: define void @MemCpyTest +; CHECK: call i8* @memcpy +; CHECK: ret void +} + +define void @MemMoveTest(i8* nocapture %x, i8* nocapture %y) { +entry: + tail call void @llvm.memmove.p0i8.p0i8.i64(i8* %x, i8* %y, i64 16, i32 4, i1 false) + ret void +; CHECK: define void @MemMoveTest +; CHECK: call i8* @memmove +; CHECK: ret void +} + +define void @MemSetTest(i8* nocapture %x) { +entry: + tail call void @llvm.memset.p0i8.i64(i8* %x, i8 77, i64 16, i32 4, i1 false) + ret void +; CHECK define void @MemSetTest +; CHECK: call i8* @memset +; CHECK: ret void +} |
