| // RUN: %clangxx_tsan -O1 %s -o %t && %deflake %run %t | FileCheck %s |
| #include "test.h" |
| |
| int X = 0; |
| |
| __attribute__((noinline)) void MySleep() { |
| sleep(1); // the sleep that must appear in the report |
| } |
| |
| void *Thread(void *p) { |
| barrier_wait(&barrier); |
| MySleep(); // Assume the main thread has done the write. |
| X = 42; |
| return 0; |
| } |
| |
| int main() { |
| barrier_init(&barrier, 2); |
| pthread_t t; |
| pthread_create(&t, 0, Thread, 0); |
| X = 43; |
| barrier_wait(&barrier); |
| pthread_join(t, 0); |
| return 0; |
| } |
| |
| // CHECK: WARNING: ThreadSanitizer: data race |
| // ... |
| // CHECK: As if synchronized via sleep: |
| // CHECK-NEXT: #0 sleep |
| // CHECK-NEXT: #1 MySleep |
| // CHECK-NEXT: #2 Thread |
