1*7c3d14c8STreehugger Robot// RUN: %clang_tsan %s -o %t -framework Foundation 2*7c3d14c8STreehugger Robot// RUN: %env_tsan_opts=ignore_interceptors_accesses=1 %run %t 2>&1 | FileCheck %s 3*7c3d14c8STreehugger Robot 4*7c3d14c8STreehugger Robot#import <Foundation/Foundation.h> 5*7c3d14c8STreehugger Robot 6*7c3d14c8STreehugger Robotlong global; 7*7c3d14c8STreehugger Robot 8*7c3d14c8STreehugger Robotstatic const long nIter = 1000; 9*7c3d14c8STreehugger Robot 10*7c3d14c8STreehugger Robotint main() { 11*7c3d14c8STreehugger Robot NSLog(@"Hello world."); 12*7c3d14c8STreehugger Robot 13*7c3d14c8STreehugger Robot global = 42; 14*7c3d14c8STreehugger Robot for (int i = 0; i < nIter; i++) { 15*7c3d14c8STreehugger Robot dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ 16*7c3d14c8STreehugger Robot dispatch_sync(dispatch_get_main_queue(), ^{ 17*7c3d14c8STreehugger Robot global = i; 18*7c3d14c8STreehugger Robot 19*7c3d14c8STreehugger Robot if (i == nIter - 1) { 20*7c3d14c8STreehugger Robot CFRunLoopStop(CFRunLoopGetCurrent()); 21*7c3d14c8STreehugger Robot } 22*7c3d14c8STreehugger Robot }); 23*7c3d14c8STreehugger Robot }); 24*7c3d14c8STreehugger Robot } 25*7c3d14c8STreehugger Robot 26*7c3d14c8STreehugger Robot CFRunLoopRun(); 27*7c3d14c8STreehugger Robot NSLog(@"Done."); 28*7c3d14c8STreehugger Robot} 29*7c3d14c8STreehugger Robot 30*7c3d14c8STreehugger Robot// CHECK: Hello world. 31*7c3d14c8STreehugger Robot// CHECK: Done. 32*7c3d14c8STreehugger Robot// CHECK-NOT: WARNING: ThreadSanitizer 33