| 1 | // RUN: %clang_tsan -O1 %s -o %t && %env_tsan_opts=halt_on_error=1 %deflake %run %t | FileCheck %s |
|---|---|
| 2 | #include "test.h" |
| 3 | |
| 4 | int X; |
| 5 | |
| 6 | void *Thread(void *x) { |
| 7 | barrier_wait(barrier: &barrier); |
| 8 | X = 42; |
| 9 | return 0; |
| 10 | } |
| 11 | |
| 12 | int main() { |
| 13 | barrier_init(barrier: &barrier, count: 2); |
| 14 | fprintf(stderr, format: "BEFORE\n"); |
| 15 | pthread_t t; |
| 16 | pthread_create(newthread: &t, attr: 0, start_routine: Thread, arg: 0); |
| 17 | X = 43; |
| 18 | barrier_wait(barrier: &barrier); |
| 19 | pthread_join(th: t, thread_return: 0); |
| 20 | fprintf(stderr, format: "AFTER\n"); |
| 21 | return 0; |
| 22 | } |
| 23 | |
| 24 | // CHECK: BEFORE |
| 25 | // CHECK: WARNING: ThreadSanitizer: data race |
| 26 | // CHECK-NOT: AFTER |
| 27 | |
| 28 |