1// RUN: %clang_tsan -O1 %s -o %t && %env_tsan_opts=suppressions='%s.supp' %run %t 2>&1 | FileCheck %s
2#include "test.h"
3
4int Global;
5
6void *Thread1(void *x) {
7  barrier_wait(&barrier);
8  Global = 42;
9  return NULL;
10}
11
12void *Thread2(void *x) {
13  Global = 43;
14  barrier_wait(&barrier);
15  return NULL;
16}
17
18int main() {
19  barrier_init(&barrier, 2);
20  pthread_t t[2];
21  pthread_create(&t[0], NULL, Thread1, NULL);
22  pthread_create(&t[1], NULL, Thread2, NULL);
23  pthread_join(t[0], NULL);
24  pthread_join(t[1], NULL);
25  fprintf(stderr, "OK\n");
26  return 0;
27}
28
29// CHECK-NOT: failed to open suppressions file
30// CHECK-NOT: WARNING: ThreadSanitizer: data race
31
32