1 files changed, 36 insertions, 0 deletions
diff --git a/test/tsan/Darwin/gcd-data.mm b/test/tsan/Darwin/gcd-data.mm
new file mode 100644
index 000000000..a5154dc35
--- /dev/null
+++ b/test/tsan/Darwin/gcd-data.mm
@@ -0,0 +1,36 @@
+// RUN: %clang_tsan %s -o %t -framework Foundation
+// RUN: %env_tsan_opts=ignore_interceptors_accesses=1 %run %t 2>&1 | FileCheck %s
+
+#import <Foundation/Foundation.h>
+
+long global;
+
+int main(int argc, const char *argv[]) {
+  fprintf(stderr, "Hello world.\n");
+
+  dispatch_queue_t q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL);
+  dispatch_semaphore_t sem = dispatch_semaphore_create(0);
+
+  global = 44;
+  dispatch_data_t data = dispatch_data_create("buffer", 6, q, ^{
+    fprintf(stderr, "Data destructor.\n");
+    global++;
+
+    dispatch_semaphore_signal(sem);
+  });
+  dispatch_release(data);
+  data = nil;
+
+  dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER);
+
+  data = dispatch_data_create("buffer", 6, q, DISPATCH_DATA_DESTRUCTOR_DEFAULT);
+  dispatch_release(data);
+  data = nil;
+
+  fprintf(stderr, "Done.\n");
+}
+
+// CHECK: Hello world.
+// CHECK: Data destructor.
+// CHECK-NOT: WARNING: ThreadSanitizer
+// CHECK: Done.