1// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2#include "test.h"
3
4volatile int X;
5
6void *Thread1(void *x) {
7  barrier_wait(&barrier);
8  X = 42;
9  X = 66;
10  X = 78;
11  return 0;
12}
13
14void *Thread2(void *x) {
15  X = 11;
16  X = 99;
17  X = 73;
18  barrier_wait(&barrier);
19  return 0;
20}
21
22int main() {
23  barrier_init(&barrier, 2);
24  pthread_t t;
25  pthread_create(&t, 0, Thread1, 0);
26  Thread2(0);
27  pthread_join(t, 0);
28}
29
30// CHECK: ThreadSanitizer: reported 1 warnings
31