compiler-rt/test/tsan/atexit5.cpp

   1 // RUN: %clangxx_tsan -O1 -fno-inline-functions %s -o %t && %deflake %run %t | FileCheck %s
   2 #include "test.h"
   3 #include <memory>
   4
   5 std::unique_ptr<long> global(new long(42));
   6
   7 void *thread(void *x) {
   8   *global = 43;
   9   barrier_wait(&barrier);
  10   return nullptr;
  11 }
  12
  13 int main() {
  14   barrier_init(&barrier, 2);
  15   pthread_t th;
  16   pthread_create(&th, nullptr, thread, nullptr);
  17   pthread_detach(th);
  18   barrier_wait(&barrier);
  19   return 0;
  20 }
  21
  22 // CHECK: WARNING: ThreadSanitizer: data race
  23 // CHECK:   Write of size 8
  24 // The exact spelling and number of std frames is hard to guess.
  25 // CHECK:     unique_ptr
  26 // CHECK:     #{{[1-9]}} cxa_at_exit_callback_installed_at
  27 // CHECK:     #{{[2-9]}} __cxx_global_var_init