1// RUN: %clang_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2#include <pthread.h>
3#include <stdio.h>
4
5extern "C" const char *__tsan_default_options() {
6 return "report_bugs=0";
7}
8
9int Global;
10
11void *Thread1(void *x) {
12 Global = 42;
13 return NULL;
14}
15
16void *Thread2(void *x) {
17 Global = 43;
18 return NULL;
19}
20
21int main() {
22 pthread_t t[2];
23 pthread_create(&t[0], NULL, Thread1, NULL);
24 pthread_create(&t[1], NULL, Thread2, NULL);
25 pthread_join(t[0], NULL);
26 pthread_join(t[1], NULL);
27 fprintf(stderr, "DONE\n");
28 return 0;
29}
30
31// CHECK-NOT: WARNING: ThreadSanitizer: data race
32// CHECK: DONE
33