rdseedintrin.h revision 1.1 
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#if !defined _X86INTRIN_H_INCLUDED
25# error "Never use <rdseedintrin.h> directly; include <x86intrin.h> instead."
26#endif
27
28#ifndef __RDSEED__
29# error "RDSEED instruction not enabled"
30#endif /* __RDSEED__ */
31
32#ifndef _RDSEEDINTRIN_H_INCLUDED
33#define _RDSEEDINTRIN_H_INCLUDED
34
35extern __inline int
36__attribute__((__gnu_inline__, __always_inline__, __artificial__))
37_rdseed16_step (unsigned short *p)
38{
39    return __builtin_ia32_rdseed_hi_step (p);
40}
41
42extern __inline int
43__attribute__((__gnu_inline__, __always_inline__, __artificial__))
44_rdseed32_step (unsigned int *p)
45{
46    return __builtin_ia32_rdseed_si_step (p);
47}
48
49#ifdef __x86_64__
50extern __inline int
51__attribute__((__gnu_inline__, __always_inline__, __artificial__))
52_rdseed64_step (unsigned long long *p)
53{
54    return __builtin_ia32_rdseed_di_step (p);
55}
56#endif
57
58#endif /* _RDSEEDINTRIN_H_INCLUDED */
59