1562c6b80SDan Liew // RUN: %clangxx_tsan %darwin_min_target_with_tls_support -O1 %s -o %t && \
2562c6b80SDan Liew // RUN: %deflake %run %t | FileCheck %s
3bcaeed49SFangrui Song #include "test.h"
4bcaeed49SFangrui Song
5bcaeed49SFangrui Song int Global;
6bcaeed49SFangrui Song __thread int huge[1024*1024];
7bcaeed49SFangrui Song
Thread1(void * x)8bcaeed49SFangrui Song void *Thread1(void *x) {
9bcaeed49SFangrui Song barrier_wait(&barrier);
10bcaeed49SFangrui Song Global++;
11bcaeed49SFangrui Song return NULL;
12bcaeed49SFangrui Song }
13bcaeed49SFangrui Song
Thread2(void * x)14bcaeed49SFangrui Song void *Thread2(void *x) {
15bcaeed49SFangrui Song pthread_mutex_t *mtx = new pthread_mutex_t;
16bcaeed49SFangrui Song pthread_mutex_init(mtx, 0);
17bcaeed49SFangrui Song pthread_mutex_lock(mtx);
18bcaeed49SFangrui Song Global--;
19bcaeed49SFangrui Song pthread_mutex_unlock(mtx);
20bcaeed49SFangrui Song pthread_mutex_destroy(mtx);
21bcaeed49SFangrui Song delete mtx;
22bcaeed49SFangrui Song barrier_wait(&barrier);
23bcaeed49SFangrui Song return NULL;
24bcaeed49SFangrui Song }
25bcaeed49SFangrui Song
main()26bcaeed49SFangrui Song int main() {
27bcaeed49SFangrui Song barrier_init(&barrier, 2);
28bcaeed49SFangrui Song pthread_t t[2];
29bcaeed49SFangrui Song pthread_create(&t[0], NULL, Thread1, NULL);
30bcaeed49SFangrui Song pthread_create(&t[1], NULL, Thread2, NULL);
31bcaeed49SFangrui Song pthread_join(t[0], NULL);
32bcaeed49SFangrui Song pthread_join(t[1], NULL);
33bcaeed49SFangrui Song }
34bcaeed49SFangrui Song
35bcaeed49SFangrui Song // CHECK: WARNING: ThreadSanitizer: data race
36bcaeed49SFangrui Song // CHECK: Write of size 4 at {{.*}} by thread T1:
37bcaeed49SFangrui Song // CHECK: Previous write of size 4 at {{.*}} by thread T2
38bcaeed49SFangrui Song // CHECK: (mutexes: write [[M1:M[0-9]+]]):
39*b3321349SDmitry Vyukov // CHECK: Mutex [[M1]] (0x{{.*}}) created at:
40*b3321349SDmitry Vyukov // CHECK: #0 pthread_mutex_init
41*b3321349SDmitry Vyukov // CHECK: #1 Thread2
42