1  /* Copyright (C) 2018 Free Software Foundation, Inc.
       2  
       3  This file is part of GCC.
       4  
       5  GCC is free software; you can redistribute it and/or modify
       6  it under the terms of the GNU General Public License as published by
       7  the Free Software Foundation; either version 3, or (at your option)
       8  any later version.
       9  
      10  GCC is distributed in the hope that it will be useful,
      11  but WITHOUT ANY WARRANTY; without even the implied warranty of
      12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13  GNU General Public License for more details.
      14  
      15  You should have received a copy of the GNU General Public License
      16  along with GCC; see the file COPYING3.  If not see
      17  <http://www.gnu.org/licenses/>.  */
      18  
      19  #ifndef PREVENT_OPTIMIZATION_H
      20  #define PREVENT_OPTIMIZATION_H
      21  
      22  #ifdef PREVENT_OPTIMIZATION
      23  #define ATTRIBUTE_USED __attribute__((used))
      24  #else
      25  #define ATTRIBUTE_USED
      26  #endif
      27  
      28  #endif