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| author | Dmitry Vyukov <dvyukov@google.com> | 2017-03-21 14:28:55 +0000 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2017-03-21 14:28:55 +0000 |
| commit | 8f117382b967d5e5c4f27a10477de1ea65b76be1 (patch) | |
| tree | 9edeaca0623a75c880bc9972864a18edd1a7b5f4 /test/tsan | |
| parent | 1698c9fe645e6d001bf8a9a7c115edb8098e73a1 (diff) | |
tsan: support __ATOMIC_HLE_ACQUIRE/RELEASE flags
HLE flags can be combined with memory order in atomic operations.
Currently tsan runtime crashes on e.g. IsStoreOrder(mo) in atomic store
if any of these additional flags are specified.
Filter these flags out.
See the comment as to why it is safe.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@298378 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/tsan')
| -rw-r--r-- | test/tsan/atomic_hle.cc | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/tsan/atomic_hle.cc b/test/tsan/atomic_hle.cc new file mode 100644 index 000000000..345e363c2 --- /dev/null +++ b/test/tsan/atomic_hle.cc @@ -0,0 +1,25 @@ +// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s +#include "test.h" +#include <sanitizer/tsan_interface_atomic.h> + +#ifndef __ATOMIC_HLE_ACQUIRE +#define __ATOMIC_HLE_ACQUIRE (1 << 16) +#endif +#ifndef __ATOMIC_HLE_RELEASE +#define __ATOMIC_HLE_RELEASE (1 << 17) +#endif + +int main() { + volatile int x = 0; + //__atomic_fetch_add(&x, 1, __ATOMIC_ACQUIRE | __ATOMIC_HLE_ACQUIRE); + //__atomic_store_n(&x, 0, __ATOMIC_RELEASE | __ATOMIC_HLE_RELEASE); + __tsan_atomic32_fetch_add(&x, 1, + (__tsan_memory_order)(__ATOMIC_ACQUIRE | __ATOMIC_HLE_ACQUIRE)); + __tsan_atomic32_store(&x, 0, + (__tsan_memory_order)(__ATOMIC_RELEASE | __ATOMIC_HLE_RELEASE)); + fprintf(stderr, "DONE\n"); + return 0; +} + +// CHECK: DONE + |