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 
4 int Global;
5 
Thread1(void * x)6 void *Thread1(void *x) {
7   Global = 42;
8   barrier_wait(&barrier);
9   return NULL;
10 }
11 
Thread2(void * x)12 void *Thread2(void *x) {
13   barrier_wait(&barrier);
14   Global = 43;
15   return NULL;
16 }
17 
main()18 int 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   printf("OK\n");
26   return 0;
27 }
28 
29 // CHECK-NOT: failed to open suppressions file
30 // CHECK-NOT: WARNING: ThreadSanitizer: data race
31 
32