1// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
2#include <stdio.h>
3#include <memory>
4#include <thread>
5
6int main() {
7  int v1 = 0;
8  int v2 = 0;
9  std::thread t1;
10  std::thread t2;
11
12  {
13     auto thingy = std::make_shared<int>(42);
14     t1 = std::thread([thingy, &v1] { v1 = *thingy; });
15     t2 = std::thread([thingy, &v2] { v2 = *thingy; });
16  }
17
18  t1.join();
19  t2.join();
20  printf("%d %d\n", v1, v2);
21  // CHECK-NOT: ThreadSanitizer: data race
22  // CHECK: 42 42
23  return 0;
24}
25