1/* { dg-shouldfail "tsan" } */
2/* { dg-additional-options "-ldl" } */
3
4#include <pthread.h>
5#include <unistd.h>
6#include "tsan_barrier.h"
7
8static pthread_barrier_t barrier;
9int X = 0;
10
11void MySleep() {
12  sleep(1);
13}
14
15void *Thread(void *p) {
16  barrier_wait(&barrier);
17  MySleep();  // Assume the main thread has done the write.
18  X = 42;
19  return 0;
20}
21
22int main() {
23  barrier_init(&barrier, 2);
24  pthread_t t;
25  pthread_create(&t, 0, Thread, 0);
26  X = 43;
27  barrier_wait(&barrier);
28  pthread_join(t, 0);
29  return 0;
30}
31
32/* { dg-output "WARNING: ThreadSanitizer: data race.*(\n|\r\n|\r).*} */
33/* { dg-output "  As if synchronized via sleep:(\n|\r\n|\r)} */
34/* { dg-output "         #0 sleep.*"*} */
35/* { dg-output "         #1 MySleep.*"*} */
36/* { dg-output "         #2 Thread.*"*} */
37