diff options
Diffstat (limited to 'test/tsan/Darwin/gcd-apply.mm')
| -rw-r--r-- | test/tsan/Darwin/gcd-apply.mm | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/test/tsan/Darwin/gcd-apply.mm b/test/tsan/Darwin/gcd-apply.mm index e68a4b18205d9..a7dc3740dc7b5 100644 --- a/test/tsan/Darwin/gcd-apply.mm +++ b/test/tsan/Darwin/gcd-apply.mm @@ -17,6 +17,10 @@ void callback(void *context, size_t i) { int main(int argc, const char *argv[]) { barrier_init(&barrier, 2); fprintf(stderr, "start\n"); + + // Warm up GCD (workaround for macOS Sierra where dispatch_apply might run single-threaded). + dispatch_sync(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ }); + dispatch_queue_t q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_CONCURRENT); global = 42; |