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// avx int vector class
//
// Copyright (C) 2011 Tim Blechmann
//
// This program 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 2 of the License, or
// (at your option) any later version.
//
// This program 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.
//
// You should have received a copy of the GNU General Public License
// along with this program; see the file COPYING. If not, write to
// the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
#ifndef VEC_AVX_INT_HPP
#define VEC_AVX_INT_HPP
#include <pmmintrin.h>
#include "vec_int_sse2.hpp"
#include <functional>
namespace nova {
namespace detail {
struct int_vec_avx
{
__m256i data_;
/* cast */
explicit int_vec_avx(int arg):
data_(_mm256_set1_epi32(arg))
{}
int_vec_avx(__m256i arg):
data_(arg)
{}
int_vec_avx(__m256 arg):
data_(_mm256_castps_si256(arg))
{}
int_vec_avx(int_vec_avx const & arg):
data_(arg.data_)
{}
int_vec_avx(void)
{}
#define APPLY_SSE_FUNCTION(op, function) \
friend int_vec_avx op(int_vec_avx const & lhs, int_vec_avx const & rhs) \
{ \
__m256 lhs_data = _mm256_castsi256_ps(lhs.data_); \
__m256 rhs_data = _mm256_castsi256_ps(rhs.data_); \
__m128 lhs_low = _mm256_castps256_ps128(lhs_data); \
__m128 lhs_hi = _mm256_extractf128_ps(lhs_data, 1); \
__m128 rhs_low = _mm256_castps256_ps128(rhs_data); \
__m128 rhs_hi = _mm256_extractf128_ps(rhs_data, 1); \
\
__m128i newlow = function(int_vec_sse2(lhs_low), int_vec_sse2(rhs_low)); \
__m128i newhi = function(int_vec_sse2(lhs_hi), int_vec_sse2(rhs_hi)); \
\
__m256i result = _mm256_castsi128_si256(newlow); \
result = _mm256_insertf128_si256(result, newhi, 1); \
return result; \
}
APPLY_SSE_FUNCTION(operator +, std::plus<int_vec_sse2>());
APPLY_SSE_FUNCTION(operator -, std::minus<int_vec_sse2>());
APPLY_SSE_FUNCTION(mask_lt, mask_lt)
APPLY_SSE_FUNCTION(mask_gt, mask_gt)
APPLY_SSE_FUNCTION(mask_eq, mask_eq)
#undef APPLY_SSE_FUNCTION
friend int_vec_avx operator&(int_vec_avx const & lhs, int_vec_avx const & rhs)
{
return int_vec_avx(_mm256_and_ps(_mm256_castsi256_ps(lhs.data_),
_mm256_castsi256_ps(rhs.data_)));
}
friend inline int_vec_avx andnot(int_vec_avx const & lhs, int_vec_avx const & rhs)
{
return int_vec_avx(_mm256_andnot_ps(_mm256_castsi256_ps(lhs.data_),
_mm256_castsi256_ps(rhs.data_)));
}
// shift in zeros
friend inline int_vec_avx slli(int_vec_avx const & arg, int count)
{
__m256 arg_data = _mm256_castsi256_ps(arg.data_);
__m128 arg_low = _mm256_castps256_ps128(arg_data);
__m128 arg_hi = _mm256_extractf128_ps(arg_data, 1);
__m128 newlow = (__m128)_mm_slli_epi32((__m128i)arg_low, count);
__m128 newhi = (__m128)_mm_slli_epi32((__m128i)arg_hi, count);
__m256 result = _mm256_castps128_ps256(newlow);
result = _mm256_insertf128_ps(result, newhi, 1);
return result;
}
// shift in zeros
friend inline int_vec_avx srli(int_vec_avx const & arg, int count)
{
__m256 arg_data = _mm256_castsi256_ps(arg.data_);
__m128 arg_low = _mm256_castps256_ps128(arg_data);
__m128 arg_hi = _mm256_extractf128_ps(arg_data, 1);
__m128 newlow = (__m128)_mm_srli_epi32((__m128i)arg_low, count);
__m128 newhi = (__m128)_mm_srli_epi32((__m128i)arg_hi, count);
__m256 result = _mm256_castps128_ps256(newlow);
result = _mm256_insertf128_ps(result, newhi, 1);
return result;
}
__m256 convert_to_float(void) const
{
return _mm256_cvtepi32_ps(data_);
}
};
}
}
#endif /* VEC_AVX_INT_HPP */
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