gcc/config/i386/rdseedintrin.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 #if !defined _X86INTRIN_H_INCLUDED
  25 # error "Never use <rdseedintrin.h> directly; include <x86intrin.h> instead."
  26 #endif
  27
  28 #ifndef _RDSEEDINTRIN_H_INCLUDED
  29 #define _RDSEEDINTRIN_H_INCLUDED
  30
  31 #ifndef __RDSEED__
  32 #pragma GCC push_options
  33 #pragma GCC target("rdseed")
  34 #define __DISABLE_RDSEED__
  35 #endif /* __RDSEED__ */
  36
  37
  38 extern __inline int
  39 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
  40 _rdseed16_step (unsigned short *__p)
  41 {
  42   return __builtin_ia32_rdseed_hi_step (__p);
  43 }
  44
  45 extern __inline int
  46 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
  47 _rdseed32_step (unsigned int *__p)
  48 {
  49   return __builtin_ia32_rdseed_si_step (__p);
  50 }
  51
  52 #ifdef __x86_64__
  53 extern __inline int
  54 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
  55 _rdseed64_step (unsigned long long *__p)
  56 {
  57   return __builtin_ia32_rdseed_di_step (__p);
  58 }
  59 #endif
  60
  61 #ifdef __DISABLE_RDSEED__
  62 #undef __DISABLE_RDSEED__
  63 #pragma GCC pop_options
  64 #endif /* __DISABLE_RDSEED__ */
  65
  66 #endif /* _RDSEEDINTRIN_H_INCLUDED */