| // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s |
| #include <libkern/OSAtomic.h> |
| #include <pthread.h> |
| #include <stdio.h> |
| |
| int Global; |
| OSSpinLock lock; |
| |
| void *Thread(void *x) { |
| OSSpinLockLock(&lock); |
| Global++; |
| OSSpinLockUnlock(&lock); |
| return NULL; |
| } |
| |
| int main() { |
| fprintf(stderr, "Hello world.\n"); |
| |
| pthread_t t[2]; |
| pthread_create(&t[0], NULL, Thread, NULL); |
| pthread_create(&t[1], NULL, Thread, NULL); |
| pthread_join(t[0], NULL); |
| pthread_join(t[1], NULL); |
| |
| fprintf(stderr, "Done.\n"); |
| } |
| |
| // CHECK: Hello world. |
| // CHECK: Done. |
| // CHECK-NOT: WARNING: ThreadSanitizer |
