1// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t 2>&1 | FileCheck %s
2#include <pthread.h>
3#include <stdio.h>
4
5int Global;
6
7void *Thread1(void *x) {
8  Global++;
9  return NULL;
10}
11
12void *Thread2(void *x) {
13  Global--;
14  return NULL;
15}
16
17int main() {
18  pthread_t t[2];
19  pthread_create(&t[0], NULL, Thread1, NULL);
20  pthread_create(&t[1], NULL, Thread2, NULL);
21  pthread_join(t[0], NULL);
22  pthread_join(t[1], NULL);
23}
24
25// CHECK: WARNING: ThreadSanitizer: data race
26// CHECK: SUMMARY: ThreadSanitizer: data race{{.*}}Thread
27