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// RUN: %clang_tsan %s -o %t -framework Foundation
// RUN: %run %t 2>&1 | FileCheck %s
#import <Foundation/Foundation.h>
#import "../test.h"
long global;
int main() {
NSLog(@"Hello world.");
NSLog(@"addr=%p\n", &global);
dispatch_queue_t q = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
global = 42;
dispatch_group_t g = dispatch_group_create();
dispatch_group_async(g, q, ^{
global = 43;
});
dispatch_group_wait(g, DISPATCH_TIME_FOREVER);
global = 44;
dispatch_group_enter(g);
dispatch_async(q, ^{
global = 45;
dispatch_group_leave(g);
});
dispatch_group_wait(g, DISPATCH_TIME_FOREVER);
global = 46;
dispatch_group_enter(g);
dispatch_async(q, ^{
global = 47;
dispatch_group_leave(g);
});
dispatch_group_notify(g, q, ^{
global = 48;
dispatch_sync(dispatch_get_main_queue(), ^{
CFRunLoopStop(CFRunLoopGetCurrent());
});
});
CFRunLoopRun();
NSLog(@"Done.");
}
// CHECK: Hello world.
// CHECK: Done.
// CHECK-NOT: WARNING: ThreadSanitizer
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