27 lines · cpp
1// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s2#include "test.h"3 4_Atomic(int*) p;5 6void *thr(void *a) {7 barrier_wait(&barrier);8 int *pp = __c11_atomic_load(&p, __ATOMIC_RELAXED);9 *pp = 42;10 return 0;11}12 13int main() {14 barrier_init(&barrier, 2);15 pthread_t th;16 pthread_create(&th, 0, thr, p);17 __c11_atomic_store(&p, new int, __ATOMIC_RELAXED);18 barrier_wait(&barrier);19 pthread_join(th, 0);20}21 22// CHECK: data race23// CHECK: Previous write24// CHECK: #0 operator new25// CHECK: Location is heap block26// CHECK: #0 operator new27