| // RUN: %clangxx_tsan -O1 %s -o %t && not %t 2>&1 | FileCheck %s | |
| #include <pthread.h> | |
| #include <stdio.h> | |
| const long kOffset = 64*1024; | |
| void *Thread(void *p) { | |
| ((char*)p)[-kOffset] = 43; | |
| return 0; | |
| } | |
| int main() { | |
| char *volatile p0 = new char[16]; | |
| delete[] p0; | |
| char *p = new char[32]; | |
| pthread_t th; | |
| pthread_create(&th, 0, Thread, p); | |
| p[-kOffset] = 42; | |
| pthread_join(th, 0); | |
| } | |
| // Used to crash with CHECK failed. | |
| // CHECK: WARNING: ThreadSanitizer: data race | |