1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2 #include <pthread.h>
3 #include <stdint.h>
4 #include <stdio.h>
5
6 typedef int32_t OSSpinLock;
7 extern "C" void OSSpinLockLock(OSSpinLock *);
8 extern "C" void OSSpinLockUnlock(OSSpinLock *);
9
10 int Global;
11 OSSpinLock lock;
12
Thread(void * x)13 void *Thread(void *x) {
14 OSSpinLockLock(&lock);
15 Global++;
16 OSSpinLockUnlock(&lock);
17 return NULL;
18 }
19
main()20 int main() {
21 fprintf(stderr, "Hello world.\n");
22
23 pthread_t t[2];
24 pthread_create(&t[0], NULL, Thread, NULL);
25 pthread_create(&t[1], NULL, Thread, NULL);
26 pthread_join(t[0], NULL);
27 pthread_join(t[1], NULL);
28
29 fprintf(stderr, "Done.\n");
30 }
31
32 // CHECK: Hello world.
33 // CHECK: Done.
34 // CHECK-NOT: WARNING: ThreadSanitizer
35