1 // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
2 #include "test.h"
3
4 int Global;
5 __thread int huge[1024*1024];
6
Thread1(void * x)7 void *Thread1(void *x) {
8 barrier_wait(&barrier);
9 Global++;
10 return NULL;
11 }
12
Thread2(void * x)13 void *Thread2(void *x) {
14 pthread_mutex_t *mtx = new pthread_mutex_t;
15 pthread_mutex_init(mtx, 0);
16 pthread_mutex_lock(mtx);
17 Global--;
18 pthread_mutex_unlock(mtx);
19 pthread_mutex_destroy(mtx);
20 delete mtx;
21 barrier_wait(&barrier);
22 return NULL;
23 }
24
main()25 int main() {
26 barrier_init(&barrier, 2);
27 pthread_t t[2];
28 pthread_create(&t[0], NULL, Thread1, NULL);
29 pthread_create(&t[1], NULL, Thread2, NULL);
30 pthread_join(t[0], NULL);
31 pthread_join(t[1], NULL);
32 }
33
34 // CHECK: WARNING: ThreadSanitizer: data race
35 // CHECK: Write of size 4 at {{.*}} by thread T1:
36 // CHECK: Previous write of size 4 at {{.*}} by thread T2
37 // CHECK: (mutexes: write [[M1:M[0-9]+]]):
38 // CHECK: Mutex [[M1]] is already destroyed
39 // CHECK-NOT: Mutex {{.*}} created at
40
41