1// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2#include "test.h"
3
4void *Thread(void *a) {
5 barrier_wait(barrier: &barrier);
6 __atomic_fetch_add((int*)a, 1, __ATOMIC_SEQ_CST);
7 return 0;
8}
9
10int main() {
11 barrier_init(barrier: &barrier, count: 2);
12 int *a = new int(0);
13 pthread_t t;
14 pthread_create(newthread: &t, attr: 0, start_routine: Thread, arg: a);
15 delete a;
16 barrier_wait(barrier: &barrier);
17 pthread_join(th: t, thread_return: 0);
18}
19
20// CHECK: WARNING: ThreadSanitizer: heap-use-after-free
21

source code of compiler-rt/test/tsan/atomic_free2.cpp