1// RUN: %clangxx_tsan -O1 %s -o %t && not %run %t 2>&1 | FileCheck %s
2#include "test.h"
3
4const int kThreads = 16;
5const int kIters = 1000;
6
7volatile int X = 0;
8
9void *thr(void *arg) {
10 for (int i = 0; i < kIters; i++)
11 X++;
12 return 0;
13}
14
15int main() {
16 pthread_t th[kThreads];
17 for (int i = 0; i < kThreads; i++)
18 pthread_create(&th[i], 0, thr, 0);
19 for (int i = 0; i < kThreads; i++)
20 pthread_join(th[i], 0);
21 fprintf(stderr, "DONE\n");
22}
23
24// CHECK: ThreadSanitizer: data race
25// CHECK: DONE
26