1// RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2#include <pthread.h>
3#include <unistd.h>
4
5_Atomic(int*) p;
6
7void *thr(void *a) {
8  sleep(1);
9  int *pp = __c11_atomic_load(&p, __ATOMIC_RELAXED);
10  *pp = 42;
11  return 0;
12}
13
14int main() {
15  pthread_t th;
16  pthread_create(&th, 0, thr, p);
17  __c11_atomic_store(&p, new int, __ATOMIC_RELAXED);
18  pthread_join(th, 0);
19}
20
21// CHECK: data race
22// CHECK:   Previous write
23// CHECK:     #0 operator new
24// CHECK:   Location is heap block
25// CHECK:     #0 operator new
26