aboutsummaryrefslogtreecommitdiff
path: root/test/tsan/tls_race2.cc
blob: d0f7b03e09a1d6cf02e68f95e2ed6eeeff7d92df (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
// RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s
#include "test.h"

void *Thread2(void *a) {
  barrier_wait(&barrier);
  *(int*)a = 43;
  return 0;
}

void *Thread(void *a) {
  static __thread int Var = 42;
  pthread_t t;
  pthread_create(&t, 0, Thread2, &Var);
  Var = 42;
  barrier_wait(&barrier);
  pthread_join(t, 0);
  return 0;
}

int main() {
  barrier_init(&barrier, 2);
  pthread_t t;
  pthread_create(&t, 0, Thread, 0);
  pthread_join(t, 0);
}

// CHECK: WARNING: ThreadSanitizer: data race
// CHECK:   Location is TLS of thread T1.