| // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s | |
| #include <pthread.h> | |
| #include <unistd.h> | |
| _Atomic(int*) p; | |
| void *thr(void *a) { | |
| sleep(1); | |
| int *pp = __c11_atomic_load(&p, __ATOMIC_RELAXED); | |
| *pp = 42; | |
| return 0; | |
| } | |
| int main() { | |
| pthread_t th; | |
| pthread_create(&th, 0, thr, p); | |
| __c11_atomic_store(&p, new int, __ATOMIC_RELAXED); | |
| pthread_join(th, 0); | |
| } | |
| // CHECK: data race | |
| // CHECK: Previous write | |
| // CHECK: #0 operator new | |
| // CHECK: Location is heap block | |
| // CHECK: #0 operator new |