gcc/config/i386/xtestintrin.h

   1 /* Copyright (C) 2012-2013 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 __RTM__
  29 # error "RTM instruction set not enabled"
  30 #endif /* __RTM__ */
  31
  32 #ifndef _XTESTINTRIN_H_INCLUDED
  33 #define _XTESTINTRIN_H_INCLUDED
  34
  35 /* Return non-zero if the instruction executes inside an RTM or HLE code
  36    region.  Return zero otherwise.   */
  37 extern __inline int
  38 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
  39 _xtest (void)
  40 {
  41   return __builtin_ia32_xtest ();
  42 }
  43
  44 #endif /* _XTESTINTRIN_H_INCLUDED */