1// Regression test for
2// https://code.google.com/p/address-sanitizer/issues/detail?id=360.
3
4// RUN: %clang_asan %s -o %t -framework Foundation
5// RUN: %run %t 2>&1 | FileCheck %s
6
7#import <Foundation/Foundation.h>
8
9void f() {
10    int y = 7;
11    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), ^{
12        dispatch_sync(dispatch_get_main_queue(), ^{
13            printf("num = %d\n", y);
14        });
15    });
16}
17
18int main() {
19  NSLog(@"Hello world");
20}
21
22// CHECK-NOT: AddressSanitizer: odr-violation
23// CHECK: Hello world
24