1// RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
2#include <pthread.h>
3#include <stddef.h>
4#include <unistd.h>
5
6void *Thread2(void *a) {
7  *(int*)a = 43;
8  return 0;
9}
10
11void *Thread(void *a) {
12  int Var = 42;
13  pthread_t t;
14  pthread_create(&t, 0, Thread2, &Var);
15  Var = 42;
16  pthread_join(t, 0);
17  return 0;
18}
19
20int main() {
21  pthread_t t;
22  pthread_create(&t, 0, Thread, 0);
23  pthread_join(t, 0);
24}
25
26// CHECK: WARNING: ThreadSanitizer: data race
27// CHECK:   Location is stack of thread T1.
28
29