forked from OSchip/llvm-project
31 lines
600 B
C++
31 lines
600 B
C++
// 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
|