text: //===----------------------------------------------------------------------===//
  //
  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  // See https://llvm.org/LICENSE.txt for license information.
  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  //
  //===----------------------------------------------------------------------===//
  //
  // UNSUPPORTED: libcpp-has-no-threads
  
  // <atomic>
  
  // void atomic_thread_fence(memory_order m);
  
  #include <atomic>
  
  int main(int, char**)
  {
      std::atomic_thread_fence(std::memory_order_seq_cst);
  
    return 0;
  }
  