1// RUN: %clang_tsan %s -o %t -framework Foundation 2// RUN: %env_tsan_opts=ignore_interceptors_accesses=1 %run %t 2>&1 | FileCheck %s 3 4#import <Foundation/Foundation.h> 5 6#import "../test.h" 7 8long global; 9 10int main() { 11 NSLog(@"Hello world."); 12 NSLog(@"addr=%p\n", &global); 13 14 dispatch_queue_t q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); 15 global = 42; 16 17 dispatch_group_t g = dispatch_group_create(); 18 dispatch_group_async(g, q, ^{ 19 global = 43; 20 }); 21 dispatch_group_wait(g, DISPATCH_TIME_FOREVER); 22 23 global = 44; 24 25 dispatch_group_enter(g); 26 dispatch_async(q, ^{ 27 global = 45; 28 dispatch_group_leave(g); 29 }); 30 dispatch_group_wait(g, DISPATCH_TIME_FOREVER); 31 32 global = 46; 33 34 dispatch_group_enter(g); 35 dispatch_async(q, ^{ 36 global = 47; 37 dispatch_group_leave(g); 38 }); 39 dispatch_group_notify(g, q, ^{ 40 global = 48; 41 42 dispatch_sync(dispatch_get_main_queue(), ^{ 43 CFRunLoopStop(CFRunLoopGetCurrent()); 44 }); 45 }); 46 47 CFRunLoopRun(); 48 NSLog(@"Done."); 49} 50 51// CHECK: Hello world. 52// CHECK: Done. 53// CHECK-NOT: WARNING: ThreadSanitizer 54