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