/usr/include/x86_64-linux-gnu/c++/6/32/ext/opt_random.h is in lib32stdc++-6-dev 6.3.0-18+deb9u1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 | // Optimizations for random number extensions, x86 version -*- C++ -*-
// Copyright (C) 2012-2016 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/** @file ext/random.tcc
* This is an internal header file, included by other library headers.
* Do not attempt to use it directly. @headername{ext/random}
*/
#ifndef _EXT_OPT_RANDOM_H
#define _EXT_OPT_RANDOM_H 1
#pragma GCC system_header
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#ifdef __SSE2__
namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
namespace {
template<size_t __sl1, size_t __sl2, size_t __sr1, size_t __sr2,
uint32_t __msk1, uint32_t __msk2, uint32_t __msk3, uint32_t __msk4>
inline __m128i __sse2_recursion(__m128i __a, __m128i __b,
__m128i __c, __m128i __d)
{
__m128i __y = _mm_srli_epi32(__b, __sr1);
__m128i __z = _mm_srli_si128(__c, __sr2);
__m128i __v = _mm_slli_epi32(__d, __sl1);
__z = _mm_xor_si128(__z, __a);
__z = _mm_xor_si128(__z, __v);
__m128i __x = _mm_slli_si128(__a, __sl2);
__y = _mm_and_si128(__y, _mm_set_epi32(__msk4, __msk3, __msk2, __msk1));
__z = _mm_xor_si128(__z, __x);
return _mm_xor_si128(__z, __y);
}
}
#define _GLIBCXX_OPT_HAVE_RANDOM_SFMT_GEN_READ 1
template<typename _UIntType, size_t __m,
size_t __pos1, size_t __sl1, size_t __sl2,
size_t __sr1, size_t __sr2,
uint32_t __msk1, uint32_t __msk2,
uint32_t __msk3, uint32_t __msk4,
uint32_t __parity1, uint32_t __parity2,
uint32_t __parity3, uint32_t __parity4>
void simd_fast_mersenne_twister_engine<_UIntType, __m,
__pos1, __sl1, __sl2, __sr1, __sr2,
__msk1, __msk2, __msk3, __msk4,
__parity1, __parity2, __parity3,
__parity4>::
_M_gen_rand(void)
{
__m128i __r1 = _mm_load_si128(&_M_state[_M_nstate - 2]);
__m128i __r2 = _mm_load_si128(&_M_state[_M_nstate - 1]);
size_t __i;
for (__i = 0; __i < _M_nstate - __pos1; ++__i)
{
__m128i __r = __sse2_recursion<__sl1, __sl2, __sr1, __sr2,
__msk1, __msk2, __msk3, __msk4>
(_M_state[__i], _M_state[__i + __pos1], __r1, __r2);
_mm_store_si128(&_M_state[__i], __r);
__r1 = __r2;
__r2 = __r;
}
for (; __i < _M_nstate; ++__i)
{
__m128i __r = __sse2_recursion<__sl1, __sl2, __sr1, __sr2,
__msk1, __msk2, __msk3, __msk4>
(_M_state[__i], _M_state[__i + __pos1 - _M_nstate], __r1, __r2);
_mm_store_si128(&_M_state[__i], __r);
__r1 = __r2;
__r2 = __r;
}
_M_pos = 0;
}
#define _GLIBCXX_OPT_HAVE_RANDOM_SFMT_OPERATOREQUAL 1
template<typename _UIntType, size_t __m,
size_t __pos1, size_t __sl1, size_t __sl2,
size_t __sr1, size_t __sr2,
uint32_t __msk1, uint32_t __msk2,
uint32_t __msk3, uint32_t __msk4,
uint32_t __parity1, uint32_t __parity2,
uint32_t __parity3, uint32_t __parity4>
bool
operator==(const __gnu_cxx::simd_fast_mersenne_twister_engine<_UIntType,
__m, __pos1, __sl1, __sl2, __sr1, __sr2,
__msk1, __msk2, __msk3, __msk4,
__parity1, __parity2, __parity3, __parity4>& __lhs,
const __gnu_cxx::simd_fast_mersenne_twister_engine<_UIntType,
__m, __pos1, __sl1, __sl2, __sr1, __sr2,
__msk1, __msk2, __msk3, __msk4,
__parity1, __parity2, __parity3, __parity4>& __rhs)
{
__m128i __res = _mm_cmpeq_epi8(__lhs._M_state[0], __rhs._M_state[0]);
for (size_t __i = 1; __i < __lhs._M_nstate; ++__i)
__res = _mm_and_si128(__res, _mm_cmpeq_epi8(__lhs._M_state[__i],
__rhs._M_state[__i]));
return (_mm_movemask_epi8(__res) == 0xffff
&& __lhs._M_pos == __rhs._M_pos);
}
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
#endif // __SSE2__
#endif // __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#endif // _EXT_OPT_RANDOM_H
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