Vendor import of compiler-rt release_39 branch r276489:vendor/compiler-rt/compiler-rt-release_39-r276489

https://llvm.org/svn/llvm-project/compiler-rt/branches/release_39@276489

1 files changed, 38 insertions, 0 deletions

diff --git a/test/tsan/Darwin/dispatch_main.mm b/test/tsan/Darwin/dispatch_main.mm
new file mode 100644
index 000000000000..75887547c606
--- /dev/null
+++ b/test/tsan/Darwin/dispatch_main.mm
@@ -0,0 +1,38 @@
+// Check that we don't crash when dispatch_main calls pthread_exit which
+// quits the main thread.
+
+// 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>
+
+int main() {
+  fprintf(stderr,"Hello world");
+
+  dispatch_queue_t q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_SERIAL);
+
+  dispatch_async(q, ^{
+    fprintf(stderr,"1");
+  });
+
+  dispatch_async(q, ^{
+    fprintf(stderr,"2");
+  });
+
+  dispatch_async(q, ^{
+    fprintf(stderr,"3");
+
+    dispatch_async(dispatch_get_main_queue(), ^{
+      fprintf(stderr,"Done.");
+      sleep(1);
+      exit(0);
+    });
+  });
+
+  dispatch_main();
+}
+
+// CHECK: Hello world
+// CHECK: Done.
+// CHECK-NOT: WARNING: ThreadSanitizer
+// CHECK-NOT: CHECK failed