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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 | f464481db0c3b5404004b510921ca454803fd1d0 (patch) | |
| tree | b282e5e21cc790dd67c35e61ed55d438e7dbc4bc /test/Instrumentation | |
| parent | 21fb0193b2fe92794e83e14388e18590d3771150 (diff) | |
| download | external_llvm-f464481db0c3b5404004b510921ca454803fd1d0.zip external_llvm-f464481db0c3b5404004b510921ca454803fd1d0.tar.gz external_llvm-f464481db0c3b5404004b510921ca454803fd1d0.tar.bz2 | |
[tsan] make sure memset/memcpy/memmove are not inlined in tsan mode
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178230 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Instrumentation')
| -rw-r--r-- | test/Instrumentation/ThreadSanitizer/tsan_basic.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/Instrumentation/ThreadSanitizer/tsan_basic.ll b/test/Instrumentation/ThreadSanitizer/tsan_basic.ll index 33c703b..0ecff40 100644 --- a/test/Instrumentation/ThreadSanitizer/tsan_basic.ll +++ b/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 +} |