| // RUN: %clang_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s | |
| #include <pthread.h> | |
| #include <stdio.h> | |
| #include <unistd.h> | |
| int Global; | |
| void *Thread1(void *x) { | |
| sleep(1); | |
| Global = 42; | |
| return NULL; | |
| } | |
| void *Thread2(void *x) { | |
| Global = 43; | |
| return NULL; | |
| } | |
| int main() { | |
| pthread_t t[2]; | |
| pthread_create(&t[0], NULL, Thread1, NULL); | |
| pthread_create(&t[1], NULL, Thread2, NULL); | |
| pthread_join(t[0], NULL); | |
| pthread_join(t[1], NULL); | |
| return 0; | |
| } | |
| // CHECK: WARNING: ThreadSanitizer: data race | |