1 | // This file is part of Eigen, a lightweight C++ template library
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2 | // for linear algebra.
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3 | //
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4 | // Copyright (C) 2010 Gael Guennebaud <gael.guennebaud@inria.fr>
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5 | //
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6 | // This Source Code Form is subject to the terms of the Mozilla
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7 | // Public License v. 2.0. If a copy of the MPL was not distributed
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8 | // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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9 |
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10 | #ifndef EIGEN_COMPLEX_SSE_H
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11 | #define EIGEN_COMPLEX_SSE_H
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12 |
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13 | namespace Eigen {
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14 |
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15 | namespace internal {
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16 |
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17 | //---------- float ----------
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18 | struct Packet2cf
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19 | {
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20 | EIGEN_STRONG_INLINE Packet2cf() {}
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21 | EIGEN_STRONG_INLINE explicit Packet2cf(const __m128& a) : v(a) {}
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22 | __m128 v;
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23 | };
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24 |
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25 | template<> struct packet_traits<std::complex<float> > : default_packet_traits
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26 | {
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27 | typedef Packet2cf type;
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28 | enum {
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29 | Vectorizable = 1,
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30 | AlignedOnScalar = 1,
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31 | size = 2,
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32 |
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33 | HasAdd = 1,
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34 | HasSub = 1,
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35 | HasMul = 1,
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36 | HasDiv = 1,
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37 | HasNegate = 1,
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38 | HasAbs = 0,
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39 | HasAbs2 = 0,
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40 | HasMin = 0,
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41 | HasMax = 0,
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42 | HasSetLinear = 0
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43 | };
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44 | };
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45 |
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46 | template<> struct unpacket_traits<Packet2cf> { typedef std::complex<float> type; enum {size=2}; };
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47 |
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48 | template<> EIGEN_STRONG_INLINE Packet2cf padd<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_add_ps(a.v,b.v)); }
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49 | template<> EIGEN_STRONG_INLINE Packet2cf psub<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_sub_ps(a.v,b.v)); }
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50 | template<> EIGEN_STRONG_INLINE Packet2cf pnegate(const Packet2cf& a)
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51 | {
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52 | const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x80000000,0x80000000,0x80000000,0x80000000));
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53 | return Packet2cf(_mm_xor_ps(a.v,mask));
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54 | }
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55 | template<> EIGEN_STRONG_INLINE Packet2cf pconj(const Packet2cf& a)
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56 | {
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57 | const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
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58 | return Packet2cf(_mm_xor_ps(a.v,mask));
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59 | }
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60 |
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61 | template<> EIGEN_STRONG_INLINE Packet2cf pmul<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
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62 | {
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63 | // TODO optimize it for SSE3 and 4
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64 | #ifdef EIGEN_VECTORIZE_SSE3
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65 | return Packet2cf(_mm_addsub_ps(_mm_mul_ps(_mm_moveldup_ps(a.v), b.v),
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66 | _mm_mul_ps(_mm_movehdup_ps(a.v),
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67 | vec4f_swizzle1(b.v, 1, 0, 3, 2))));
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68 | // return Packet2cf(_mm_addsub_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v),
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69 | // _mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
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70 | // vec4f_swizzle1(b.v, 1, 0, 3, 2))));
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71 | #else
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72 | const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x80000000,0x00000000,0x80000000,0x00000000));
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73 | return Packet2cf(_mm_add_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v),
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74 | _mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
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75 | vec4f_swizzle1(b.v, 1, 0, 3, 2)), mask)));
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76 | #endif
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77 | }
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78 |
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79 | template<> EIGEN_STRONG_INLINE Packet2cf pand <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_and_ps(a.v,b.v)); }
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80 | template<> EIGEN_STRONG_INLINE Packet2cf por <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_or_ps(a.v,b.v)); }
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81 | template<> EIGEN_STRONG_INLINE Packet2cf pxor <Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_xor_ps(a.v,b.v)); }
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82 | template<> EIGEN_STRONG_INLINE Packet2cf pandnot<Packet2cf>(const Packet2cf& a, const Packet2cf& b) { return Packet2cf(_mm_andnot_ps(a.v,b.v)); }
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83 |
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84 | template<> EIGEN_STRONG_INLINE Packet2cf pload <Packet2cf>(const std::complex<float>* from) { EIGEN_DEBUG_ALIGNED_LOAD return Packet2cf(pload<Packet4f>(&numext::real_ref(*from))); }
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85 | template<> EIGEN_STRONG_INLINE Packet2cf ploadu<Packet2cf>(const std::complex<float>* from) { EIGEN_DEBUG_UNALIGNED_LOAD return Packet2cf(ploadu<Packet4f>(&numext::real_ref(*from))); }
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86 |
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87 | template<> EIGEN_STRONG_INLINE Packet2cf pset1<Packet2cf>(const std::complex<float>& from)
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88 | {
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89 | Packet2cf res;
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90 | #if EIGEN_GNUC_AT_MOST(4,2)
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91 | // Workaround annoying "may be used uninitialized in this function" warning with gcc 4.2
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92 | res.v = _mm_loadl_pi(_mm_set1_ps(0.0f), reinterpret_cast<const __m64*>(&from));
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93 | #elif EIGEN_GNUC_AT_LEAST(4,6)
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94 | // Suppress annoying "may be used uninitialized in this function" warning with gcc >= 4.6
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95 | #pragma GCC diagnostic push
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96 | #pragma GCC diagnostic ignored "-Wuninitialized"
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97 | res.v = _mm_loadl_pi(res.v, (const __m64*)&from);
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98 | #pragma GCC diagnostic pop
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99 | #else
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100 | res.v = _mm_loadl_pi(res.v, (const __m64*)&from);
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101 | #endif
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102 | return Packet2cf(_mm_movelh_ps(res.v,res.v));
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103 | }
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104 |
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105 | template<> EIGEN_STRONG_INLINE Packet2cf ploaddup<Packet2cf>(const std::complex<float>* from) { return pset1<Packet2cf>(*from); }
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106 |
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107 | template<> EIGEN_STRONG_INLINE void pstore <std::complex<float> >(std::complex<float> * to, const Packet2cf& from) { EIGEN_DEBUG_ALIGNED_STORE pstore(&numext::real_ref(*to), from.v); }
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108 | template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<float> >(std::complex<float> * to, const Packet2cf& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu(&numext::real_ref(*to), from.v); }
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109 |
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110 | template<> EIGEN_STRONG_INLINE void prefetch<std::complex<float> >(const std::complex<float> * addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
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111 |
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112 | template<> EIGEN_STRONG_INLINE std::complex<float> pfirst<Packet2cf>(const Packet2cf& a)
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113 | {
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114 | #if EIGEN_GNUC_AT_MOST(4,3)
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115 | // Workaround gcc 4.2 ICE - this is not performance wise ideal, but who cares...
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116 | // This workaround also fix invalid code generation with gcc 4.3
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117 | EIGEN_ALIGN16 std::complex<float> res[2];
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118 | _mm_store_ps((float*)res, a.v);
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119 | return res[0];
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120 | #else
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121 | std::complex<float> res;
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122 | _mm_storel_pi((__m64*)&res, a.v);
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123 | return res;
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124 | #endif
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125 | }
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126 |
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127 | template<> EIGEN_STRONG_INLINE Packet2cf preverse(const Packet2cf& a) { return Packet2cf(_mm_castpd_ps(preverse(_mm_castps_pd(a.v)))); }
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128 |
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129 | template<> EIGEN_STRONG_INLINE std::complex<float> predux<Packet2cf>(const Packet2cf& a)
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130 | {
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131 | return pfirst(Packet2cf(_mm_add_ps(a.v, _mm_movehl_ps(a.v,a.v))));
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132 | }
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133 |
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134 | template<> EIGEN_STRONG_INLINE Packet2cf preduxp<Packet2cf>(const Packet2cf* vecs)
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135 | {
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136 | return Packet2cf(_mm_add_ps(_mm_movelh_ps(vecs[0].v,vecs[1].v), _mm_movehl_ps(vecs[1].v,vecs[0].v)));
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137 | }
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138 |
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139 | template<> EIGEN_STRONG_INLINE std::complex<float> predux_mul<Packet2cf>(const Packet2cf& a)
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140 | {
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141 | return pfirst(pmul(a, Packet2cf(_mm_movehl_ps(a.v,a.v))));
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142 | }
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143 |
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144 | template<int Offset>
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145 | struct palign_impl<Offset,Packet2cf>
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146 | {
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147 | static EIGEN_STRONG_INLINE void run(Packet2cf& first, const Packet2cf& second)
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148 | {
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149 | if (Offset==1)
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150 | {
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151 | first.v = _mm_movehl_ps(first.v, first.v);
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152 | first.v = _mm_movelh_ps(first.v, second.v);
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153 | }
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154 | }
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155 | };
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156 |
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157 | template<> struct conj_helper<Packet2cf, Packet2cf, false,true>
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158 | {
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159 | EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
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160 | { return padd(pmul(x,y),c); }
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161 |
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162 | EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
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163 | {
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164 | #ifdef EIGEN_VECTORIZE_SSE3
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165 | return internal::pmul(a, pconj(b));
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166 | #else
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167 | const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
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168 | return Packet2cf(_mm_add_ps(_mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v), mask),
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169 | _mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
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170 | vec4f_swizzle1(b.v, 1, 0, 3, 2))));
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171 | #endif
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172 | }
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173 | };
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174 |
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175 | template<> struct conj_helper<Packet2cf, Packet2cf, true,false>
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176 | {
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177 | EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
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178 | { return padd(pmul(x,y),c); }
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179 |
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180 | EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
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181 | {
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182 | #ifdef EIGEN_VECTORIZE_SSE3
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183 | return internal::pmul(pconj(a), b);
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184 | #else
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185 | const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
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186 | return Packet2cf(_mm_add_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v),
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187 | _mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
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188 | vec4f_swizzle1(b.v, 1, 0, 3, 2)), mask)));
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189 | #endif
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190 | }
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191 | };
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192 |
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193 | template<> struct conj_helper<Packet2cf, Packet2cf, true,true>
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194 | {
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195 | EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet2cf& y, const Packet2cf& c) const
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196 | { return padd(pmul(x,y),c); }
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197 |
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198 | EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& a, const Packet2cf& b) const
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199 | {
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200 | #ifdef EIGEN_VECTORIZE_SSE3
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201 | return pconj(internal::pmul(a, b));
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202 | #else
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203 | const __m128 mask = _mm_castsi128_ps(_mm_setr_epi32(0x00000000,0x80000000,0x00000000,0x80000000));
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204 | return Packet2cf(_mm_sub_ps(_mm_xor_ps(_mm_mul_ps(vec4f_swizzle1(a.v, 0, 0, 2, 2), b.v), mask),
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205 | _mm_mul_ps(vec4f_swizzle1(a.v, 1, 1, 3, 3),
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206 | vec4f_swizzle1(b.v, 1, 0, 3, 2))));
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207 | #endif
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208 | }
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209 | };
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210 |
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211 | template<> struct conj_helper<Packet4f, Packet2cf, false,false>
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212 | {
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213 | EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet4f& x, const Packet2cf& y, const Packet2cf& c) const
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214 | { return padd(c, pmul(x,y)); }
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215 |
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216 | EIGEN_STRONG_INLINE Packet2cf pmul(const Packet4f& x, const Packet2cf& y) const
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217 | { return Packet2cf(Eigen::internal::pmul(x, y.v)); }
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218 | };
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219 |
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220 | template<> struct conj_helper<Packet2cf, Packet4f, false,false>
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221 | {
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222 | EIGEN_STRONG_INLINE Packet2cf pmadd(const Packet2cf& x, const Packet4f& y, const Packet2cf& c) const
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223 | { return padd(c, pmul(x,y)); }
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224 |
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225 | EIGEN_STRONG_INLINE Packet2cf pmul(const Packet2cf& x, const Packet4f& y) const
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226 | { return Packet2cf(Eigen::internal::pmul(x.v, y)); }
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227 | };
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228 |
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229 | template<> EIGEN_STRONG_INLINE Packet2cf pdiv<Packet2cf>(const Packet2cf& a, const Packet2cf& b)
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230 | {
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231 | // TODO optimize it for SSE3 and 4
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232 | Packet2cf res = conj_helper<Packet2cf,Packet2cf,false,true>().pmul(a,b);
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233 | __m128 s = _mm_mul_ps(b.v,b.v);
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234 | return Packet2cf(_mm_div_ps(res.v,_mm_add_ps(s,_mm_castsi128_ps(_mm_shuffle_epi32(_mm_castps_si128(s), 0xb1)))));
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235 | }
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236 |
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237 | EIGEN_STRONG_INLINE Packet2cf pcplxflip/*<Packet2cf>*/(const Packet2cf& x)
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238 | {
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239 | return Packet2cf(vec4f_swizzle1(x.v, 1, 0, 3, 2));
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240 | }
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241 |
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242 |
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243 | //---------- double ----------
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244 | struct Packet1cd
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245 | {
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246 | EIGEN_STRONG_INLINE Packet1cd() {}
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247 | EIGEN_STRONG_INLINE explicit Packet1cd(const __m128d& a) : v(a) {}
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248 | __m128d v;
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249 | };
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250 |
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251 | template<> struct packet_traits<std::complex<double> > : default_packet_traits
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252 | {
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253 | typedef Packet1cd type;
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254 | enum {
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255 | Vectorizable = 1,
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256 | AlignedOnScalar = 0,
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257 | size = 1,
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258 |
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259 | HasAdd = 1,
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260 | HasSub = 1,
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261 | HasMul = 1,
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262 | HasDiv = 1,
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263 | HasNegate = 1,
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264 | HasAbs = 0,
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265 | HasAbs2 = 0,
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266 | HasMin = 0,
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267 | HasMax = 0,
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268 | HasSetLinear = 0
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269 | };
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270 | };
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271 |
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272 | template<> struct unpacket_traits<Packet1cd> { typedef std::complex<double> type; enum {size=1}; };
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273 |
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274 | template<> EIGEN_STRONG_INLINE Packet1cd padd<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_add_pd(a.v,b.v)); }
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275 | template<> EIGEN_STRONG_INLINE Packet1cd psub<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_sub_pd(a.v,b.v)); }
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276 | template<> EIGEN_STRONG_INLINE Packet1cd pnegate(const Packet1cd& a) { return Packet1cd(pnegate(a.v)); }
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277 | template<> EIGEN_STRONG_INLINE Packet1cd pconj(const Packet1cd& a)
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278 | {
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279 | const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
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280 | return Packet1cd(_mm_xor_pd(a.v,mask));
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281 | }
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282 |
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283 | template<> EIGEN_STRONG_INLINE Packet1cd pmul<Packet1cd>(const Packet1cd& a, const Packet1cd& b)
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284 | {
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285 | // TODO optimize it for SSE3 and 4
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286 | #ifdef EIGEN_VECTORIZE_SSE3
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287 | return Packet1cd(_mm_addsub_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v),
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288 | _mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
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289 | vec2d_swizzle1(b.v, 1, 0))));
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290 | #else
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291 | const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x0,0x0,0x80000000,0x0));
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292 | return Packet1cd(_mm_add_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v),
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293 | _mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
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294 | vec2d_swizzle1(b.v, 1, 0)), mask)));
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295 | #endif
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296 | }
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297 |
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298 | template<> EIGEN_STRONG_INLINE Packet1cd pand <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_and_pd(a.v,b.v)); }
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299 | template<> EIGEN_STRONG_INLINE Packet1cd por <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_or_pd(a.v,b.v)); }
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300 | template<> EIGEN_STRONG_INLINE Packet1cd pxor <Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_xor_pd(a.v,b.v)); }
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301 | template<> EIGEN_STRONG_INLINE Packet1cd pandnot<Packet1cd>(const Packet1cd& a, const Packet1cd& b) { return Packet1cd(_mm_andnot_pd(a.v,b.v)); }
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302 |
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303 | // FIXME force unaligned load, this is a temporary fix
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304 | template<> EIGEN_STRONG_INLINE Packet1cd pload <Packet1cd>(const std::complex<double>* from)
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305 | { EIGEN_DEBUG_ALIGNED_LOAD return Packet1cd(pload<Packet2d>((const double*)from)); }
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306 | template<> EIGEN_STRONG_INLINE Packet1cd ploadu<Packet1cd>(const std::complex<double>* from)
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307 | { EIGEN_DEBUG_UNALIGNED_LOAD return Packet1cd(ploadu<Packet2d>((const double*)from)); }
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308 | template<> EIGEN_STRONG_INLINE Packet1cd pset1<Packet1cd>(const std::complex<double>& from)
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309 | { /* here we really have to use unaligned loads :( */ return ploadu<Packet1cd>(&from); }
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310 |
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311 | template<> EIGEN_STRONG_INLINE Packet1cd ploaddup<Packet1cd>(const std::complex<double>* from) { return pset1<Packet1cd>(*from); }
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312 |
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313 | // FIXME force unaligned store, this is a temporary fix
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314 | template<> EIGEN_STRONG_INLINE void pstore <std::complex<double> >(std::complex<double> * to, const Packet1cd& from) { EIGEN_DEBUG_ALIGNED_STORE pstore((double*)to, from.v); }
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315 | template<> EIGEN_STRONG_INLINE void pstoreu<std::complex<double> >(std::complex<double> * to, const Packet1cd& from) { EIGEN_DEBUG_UNALIGNED_STORE pstoreu((double*)to, from.v); }
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316 |
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317 | template<> EIGEN_STRONG_INLINE void prefetch<std::complex<double> >(const std::complex<double> * addr) { _mm_prefetch((const char*)(addr), _MM_HINT_T0); }
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318 |
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319 | template<> EIGEN_STRONG_INLINE std::complex<double> pfirst<Packet1cd>(const Packet1cd& a)
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320 | {
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321 | EIGEN_ALIGN16 double res[2];
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322 | _mm_store_pd(res, a.v);
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323 | return std::complex<double>(res[0],res[1]);
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324 | }
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325 |
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326 | template<> EIGEN_STRONG_INLINE Packet1cd preverse(const Packet1cd& a) { return a; }
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327 |
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328 | template<> EIGEN_STRONG_INLINE std::complex<double> predux<Packet1cd>(const Packet1cd& a)
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329 | {
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330 | return pfirst(a);
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331 | }
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332 |
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333 | template<> EIGEN_STRONG_INLINE Packet1cd preduxp<Packet1cd>(const Packet1cd* vecs)
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334 | {
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335 | return vecs[0];
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336 | }
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337 |
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338 | template<> EIGEN_STRONG_INLINE std::complex<double> predux_mul<Packet1cd>(const Packet1cd& a)
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339 | {
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340 | return pfirst(a);
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341 | }
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342 |
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343 | template<int Offset>
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344 | struct palign_impl<Offset,Packet1cd>
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345 | {
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346 | static EIGEN_STRONG_INLINE void run(Packet1cd& /*first*/, const Packet1cd& /*second*/)
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347 | {
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348 | // FIXME is it sure we never have to align a Packet1cd?
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349 | // Even though a std::complex<double> has 16 bytes, it is not necessarily aligned on a 16 bytes boundary...
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350 | }
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351 | };
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352 |
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353 | template<> struct conj_helper<Packet1cd, Packet1cd, false,true>
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354 | {
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355 | EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
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356 | { return padd(pmul(x,y),c); }
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357 |
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358 | EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
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359 | {
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360 | #ifdef EIGEN_VECTORIZE_SSE3
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361 | return internal::pmul(a, pconj(b));
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362 | #else
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363 | const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
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364 | return Packet1cd(_mm_add_pd(_mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v), mask),
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365 | _mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
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366 | vec2d_swizzle1(b.v, 1, 0))));
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367 | #endif
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368 | }
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369 | };
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370 |
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371 | template<> struct conj_helper<Packet1cd, Packet1cd, true,false>
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372 | {
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373 | EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
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374 | { return padd(pmul(x,y),c); }
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375 |
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376 | EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
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377 | {
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378 | #ifdef EIGEN_VECTORIZE_SSE3
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379 | return internal::pmul(pconj(a), b);
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380 | #else
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381 | const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
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382 | return Packet1cd(_mm_add_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v),
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383 | _mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
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384 | vec2d_swizzle1(b.v, 1, 0)), mask)));
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385 | #endif
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386 | }
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387 | };
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388 |
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389 | template<> struct conj_helper<Packet1cd, Packet1cd, true,true>
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390 | {
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391 | EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet1cd& y, const Packet1cd& c) const
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392 | { return padd(pmul(x,y),c); }
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393 |
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394 | EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& a, const Packet1cd& b) const
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395 | {
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396 | #ifdef EIGEN_VECTORIZE_SSE3
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397 | return pconj(internal::pmul(a, b));
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398 | #else
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399 | const __m128d mask = _mm_castsi128_pd(_mm_set_epi32(0x80000000,0x0,0x0,0x0));
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400 | return Packet1cd(_mm_sub_pd(_mm_xor_pd(_mm_mul_pd(vec2d_swizzle1(a.v, 0, 0), b.v), mask),
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401 | _mm_mul_pd(vec2d_swizzle1(a.v, 1, 1),
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402 | vec2d_swizzle1(b.v, 1, 0))));
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403 | #endif
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404 | }
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405 | };
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406 |
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407 | template<> struct conj_helper<Packet2d, Packet1cd, false,false>
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408 | {
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409 | EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet2d& x, const Packet1cd& y, const Packet1cd& c) const
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410 | { return padd(c, pmul(x,y)); }
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411 |
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412 | EIGEN_STRONG_INLINE Packet1cd pmul(const Packet2d& x, const Packet1cd& y) const
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413 | { return Packet1cd(Eigen::internal::pmul(x, y.v)); }
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414 | };
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415 |
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416 | template<> struct conj_helper<Packet1cd, Packet2d, false,false>
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417 | {
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418 | EIGEN_STRONG_INLINE Packet1cd pmadd(const Packet1cd& x, const Packet2d& y, const Packet1cd& c) const
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419 | { return padd(c, pmul(x,y)); }
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420 |
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421 | EIGEN_STRONG_INLINE Packet1cd pmul(const Packet1cd& x, const Packet2d& y) const
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422 | { return Packet1cd(Eigen::internal::pmul(x.v, y)); }
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423 | };
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424 |
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425 | template<> EIGEN_STRONG_INLINE Packet1cd pdiv<Packet1cd>(const Packet1cd& a, const Packet1cd& b)
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426 | {
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427 | // TODO optimize it for SSE3 and 4
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428 | Packet1cd res = conj_helper<Packet1cd,Packet1cd,false,true>().pmul(a,b);
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429 | __m128d s = _mm_mul_pd(b.v,b.v);
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430 | return Packet1cd(_mm_div_pd(res.v, _mm_add_pd(s,_mm_shuffle_pd(s, s, 0x1))));
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431 | }
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432 |
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433 | EIGEN_STRONG_INLINE Packet1cd pcplxflip/*<Packet1cd>*/(const Packet1cd& x)
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434 | {
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435 | return Packet1cd(preverse(x.v));
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436 | }
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437 |
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438 | } // end namespace internal
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439 |
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440 | } // end namespace Eigen
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441 |
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442 | #endif // EIGEN_COMPLEX_SSE_H
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