1 files changed, 29 insertions, 0 deletions
diff --git a/lib/BlocksRuntime/tests/rdar6405500.c b/lib/BlocksRuntime/tests/rdar6405500.c
new file mode 100644
index 000000000..1ab4624bc
--- /dev/null
+++ b/lib/BlocksRuntime/tests/rdar6405500.c
@@ -0,0 +1,29 @@
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+
+// CONFIG rdar://6405500
+
+#include <stdio.h>
+#include <stdlib.h>
+#import <dispatch/dispatch.h>
+#import <objc/objc-auto.h>
+
+int main (int argc, const char * argv[]) {
+    __block void (^blockFu)(size_t t);
+    blockFu = ^(size_t t){
+        if (t == 20) {
+            printf("%s: success\n", argv[0]);
+            exit(0);
+        } else
+            dispatch_async(dispatch_get_main_queue(), ^{ blockFu(20); });
+    };
+    
+    dispatch_apply(10, dispatch_get_concurrent_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT), blockFu);
+
+    dispatch_main();
+    printf("shouldn't get here\n");
+    return 1;
+}