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author | Jordan Rupprecht <rupprecht@google.com> | 2019-05-14 21:58:59 +0000 |
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committer | Jordan Rupprecht <rupprecht@google.com> | 2019-05-14 21:58:59 +0000 |
commit | b6bc976d7be8ee56d3be4b6dbd2f3ab0a4021c86 (patch) | |
tree | f5ed5db8cb5d237a073ea00c4d4cd63153a16a6c /test/tsan/libdispatch/semaphore-norace.c | |
parent | 05342ccc9cff16425c0a831fddd510879544a0bf (diff) | |
parent | 098ca93185735ec3687106d0967a70fc99a85059 (diff) | |
download | compiler-rt-b6bc976d7be8ee56d3be4b6dbd2f3ab0a4021c86.tar.gz |
Creating branches/google/stable and tags/google/stable/2019-05-14 from r360103google/stable
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/google/stable@360714 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/tsan/libdispatch/semaphore-norace.c')
-rw-r--r-- | test/tsan/libdispatch/semaphore-norace.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/tsan/libdispatch/semaphore-norace.c b/test/tsan/libdispatch/semaphore-norace.c new file mode 100644 index 000000000..36e03dce8 --- /dev/null +++ b/test/tsan/libdispatch/semaphore-norace.c @@ -0,0 +1,30 @@ +// RUN: %clang_tsan %s -o %t +// RUN: %run %t 2>&1 | FileCheck %s --implicit-check-not='ThreadSanitizer' + +#include <dispatch/dispatch.h> + +#include <stdio.h> + +long global; + +int main() { + fprintf(stderr, "Hello world."); + + global = 42; + + dispatch_semaphore_t sem = dispatch_semaphore_create(0); + dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ + + global = 43; + dispatch_semaphore_signal(sem); + }); + + dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER); + global = 44; + + fprintf(stderr, "Done."); + return 0; +} + +// CHECK: Hello world. +// CHECK: Done. |