1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s 2 #include <libkern/OSAtomic.h> 3 #include <pthread.h> 4 #include <stdio.h> 5 6 int Global; 7 OSSpinLock lock; 8 9 void *Thread(void *x) { 10 OSSpinLockLock(&lock); 11 Global++; 12 OSSpinLockUnlock(&lock); 13 return NULL; 14 } 15 16 int main() { 17 fprintf(stderr, "Hello world.\n"); 18 19 pthread_t t[2]; 20 pthread_create(&t[0], NULL, Thread, NULL); 21 pthread_create(&t[1], NULL, Thread, NULL); 22 pthread_join(t[0], NULL); 23 pthread_join(t[1], NULL); 24 25 fprintf(stderr, "Done.\n"); 26 } 27 28 // CHECK: Hello world. 29 // CHECK: Done. 30 // CHECK-NOT: WARNING: ThreadSanitizer 31
