1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2 #include "test.h"
3 #include <semaphore.h>
4
5 struct A {
AA6 A() {
7 sem_init(&sem_, 0, 0);
8 }
FA9 virtual void F() {
10 }
DoneA11 void Done() {
12 sem_post(&sem_);
13 }
~AA14 virtual ~A() {
15 sem_wait(&sem_);
16 sem_destroy(&sem_);
17 }
18 sem_t sem_;
19 };
20
21 struct B : A {
FB22 virtual void F() {
23 }
~BB24 virtual ~B() { }
25 };
26
27 static A *obj = new B;
28
Thread1(void * x)29 void *Thread1(void *x) {
30 obj->F();
31 obj->Done();
32 barrier_wait(&barrier);
33 return NULL;
34 }
35
Thread2(void * x)36 void *Thread2(void *x) {
37 barrier_wait(&barrier);
38 delete obj;
39 return NULL;
40 }
41
main()42 int main() {
43 barrier_init(&barrier, 2);
44 pthread_t t[2];
45 pthread_create(&t[0], NULL, Thread1, NULL);
46 pthread_create(&t[1], NULL, Thread2, NULL);
47 pthread_join(t[0], NULL);
48 pthread_join(t[1], NULL);
49 }
50
51 // CHECK: WARNING: ThreadSanitizer: data race on vptr
52