|  | // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s | 
|  | #include "test.h" | 
|  |  | 
|  | // Test for https://github.com/google/sanitizers/issues/602 | 
|  |  | 
|  | void *Thread(void *a) { | 
|  | __atomic_store_n((int*)a, 1, __ATOMIC_RELAXED); | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | int main() { | 
|  | int *a = new int(0); | 
|  | pthread_t t; | 
|  | pthread_create(&t, 0, Thread, a); | 
|  | while (__atomic_load_n(a, __ATOMIC_RELAXED) == 0) | 
|  | sched_yield(); | 
|  | delete a; | 
|  | pthread_join(t, 0); | 
|  | } | 
|  |  | 
|  | // CHECK: WARNING: ThreadSanitizer: data race | 
|  | // CHECK:   Write | 
|  | // CHECK:     #0 operator delete | 
|  | // CHECK:     #1 main | 
|  |  | 
|  | // CHECK:   Previous atomic write | 
|  | // CHECK:     #0 Thread |