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      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 
      6 int 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