gcc/config/i386/xtestintrin.h

   1 /* Copyright (C) 2012-2017 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    Under Section 7 of GPL version 3, you are granted additional
  16    permissions described in the GCC Runtime Library Exception, version
  17    3.1, as published by the Free Software Foundation.
  18
  19    You should have received a copy of the GNU General Public License and
  20    a copy of the GCC Runtime Library Exception along with this program;
  21    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  22    <http://www.gnu.org/licenses/>.  */
  23
  24 #ifndef _IMMINTRIN_H_INCLUDED
  25 # error "Never use <xtestintrin.h> directly; include <immintrin.h> instead."
  26 #endif
  27
  28 #ifndef _XTESTINTRIN_H_INCLUDED
  29 #define _XTESTINTRIN_H_INCLUDED
  30
  31 #ifndef __RTM__
  32 #pragma GCC push_options
  33 #pragma GCC target("rtm")
  34 #define __DISABLE_RTM__
  35 #endif /* __RTM__ */
  36
  37 /* Return non-zero if the instruction executes inside an RTM or HLE code
  38    region.  Return zero otherwise.   */
  39 extern __inline int
  40 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
  41 _xtest (void)
  42 {
  43   return __builtin_ia32_xtest ();
  44 }
  45
  46 #ifdef __DISABLE_RTM__
  47 #undef __DISABLE_RTM__
  48 #pragma GCC pop_options
  49 #endif /* __DISABLE_RTM__ */
  50
  51 #endif /* _XTESTINTRIN_H_INCLUDED */