1// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2#include <pthread.h>
3#include <stdio.h>
4#include <unistd.h>
5
6char s[] = "abracadabra";
7
8void *Thread0(void *p) {
9  puts(s);
10  return 0;
11}
12
13void *Thread1(void *p) {
14  s[3] = 'z';
15  return 0;
16}
17
18int main() {
19  pthread_t th[2];
20  pthread_create(&th[0], 0, Thread0, 0);
21  pthread_create(&th[1], 0, Thread1, 0);
22  pthread_join(th[0], 0);
23  pthread_join(th[1], 0);
24  fprintf(stderr, "DONE");
25}
26
27// CHECK: WARNING: ThreadSanitizer: data race
28// CHECK: DONE
29
30