15d71de26cedae3dafc17449fe0182045c0bd20e8Stephen Hines// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov#include <pthread.h>
3fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov#include <stddef.h>
42d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines#include <unistd.h>
5fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov
6fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukovvoid *Thread(void *a) {
72d1fdb26e458c4ddc04155c1d421bced3ba90cd0Stephen Hines  sleep(1);
8fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov  *(int*)a = 43;
9fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov  return 0;
10fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov}
11fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov
12fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukovint main() {
13fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov  int Var = 42;
14fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov  pthread_t t;
15fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov  pthread_create(&t, 0, Thread, &Var);
16fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov  Var = 43;
17fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov  pthread_join(t, 0);
18fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov}
19fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov
20fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov// CHECK: WARNING: ThreadSanitizer: data race
21fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov// CHECK:   Location is stack of main thread.
22fb917e9069ea44f7103f50c658be84a8f66de56cDmitry Vyukov
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