| // RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s | |
| #include <pthread.h> | |
| #include <unistd.h> | |
| int X = 0; | |
| void *Thread(void *p) { | |
| X = 42; | |
| return 0; | |
| } | |
| int main() { | |
| pthread_t t; | |
| sleep(1); | |
| pthread_create(&t, 0, Thread, 0); | |
| X = 43; | |
| pthread_join(t, 0); | |
| return 0; | |
| } | |
| // CHECK: WARNING: ThreadSanitizer: data race | |
| // CHECK-NOT: As if synchronized via sleep |