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AltiVec_2TypeCasting_8h_source.html
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// This file is part of Eigen, a lightweight C++ template library</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">// for linear algebra.</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">//</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment">// Copyright (C) 2019 Rasmus Munk Larsen <rmlarsen@google.com></span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">// Copyright (C) 2023 Chip Kerchner (chip.kerchner@ibm.com)</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment">//</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">// This Source Code Form is subject to the terms of the Mozilla</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment">// Public License v. 2.0. If a copy of the MPL was not distributed</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment">// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#ifndef EIGEN_TYPE_CASTING_ALTIVEC_H</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#define EIGEN_TYPE_CASTING_ALTIVEC_H</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include "../../InternalHeaderCheck.h"</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceEigen.html">Eigen</a> {</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="keyword">namespace </span>internal {</div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keyword">template</span> <></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="keyword">struct </span>type_casting_traits<float, int> {</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">enum</span> {</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> VectorizedCast = 1,</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> SrcCoeffRatio = 1,</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> TgtCoeffRatio = 1</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> };</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span>};</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="keyword">template</span> <></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">struct </span>type_casting_traits<int, float> {</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">enum</span> {</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> VectorizedCast = 1,</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> SrcCoeffRatio = 1,</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> TgtCoeffRatio = 1</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> };</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span>};</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="keyword">template</span> <></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="keyword">struct </span>type_casting_traits<bfloat16, unsigned short int> {</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">enum</span> {</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> VectorizedCast = 1,</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> SrcCoeffRatio = 1,</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> TgtCoeffRatio = 1</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> };</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span>};</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="keyword">template</span> <></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="keyword">struct </span>type_casting_traits<unsigned short int, bfloat16> {</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">enum</span> {</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> VectorizedCast = 1,</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> SrcCoeffRatio = 1,</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> TgtCoeffRatio = 1</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> };</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span>};</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="keyword">template</span><> EIGEN_STRONG_INLINE Packet4i pcast<Packet4f, Packet4i>(<span class="keyword">const</span> Packet4f& a) {</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordflow">return</span> vec_cts(a,0);</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span>}</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="keyword">template</span><> EIGEN_STRONG_INLINE Packet4ui pcast<Packet4f, Packet4ui>(<span class="keyword">const</span> Packet4f& a) {</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">return</span> vec_ctu(a,0);</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span>}</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="keyword">template</span><> EIGEN_STRONG_INLINE Packet4f pcast<Packet4i, Packet4f>(<span class="keyword">const</span> Packet4i& a) {</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keywordflow">return</span> vec_ctf(a,0);</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span>}</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="keyword">template</span><> EIGEN_STRONG_INLINE Packet4f pcast<Packet4ui, Packet4f>(<span class="keyword">const</span> Packet4ui& a) {</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">return</span> vec_ctf(a,0);</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span>}</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="keyword">template</span><> EIGEN_STRONG_INLINE Packet8us pcast<Packet8bf, Packet8us>(<span class="keyword">const</span> Packet8bf& a) {</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> Packet4f float_even = Bf16ToF32Even(a);</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> Packet4f float_odd = Bf16ToF32Odd(a);</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> Packet4ui int_even = pcast<Packet4f, Packet4ui>(float_even);</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> Packet4ui int_odd = pcast<Packet4f, Packet4ui>(float_odd);</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">const</span> EIGEN_DECLARE_CONST_FAST_Packet4ui(low_mask, 0x0000FFFF);</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> Packet4ui low_even = pand<Packet4ui>(int_even, p4ui_low_mask);</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> Packet4ui low_odd = pand<Packet4ui>(int_odd, p4ui_low_mask);</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="comment">//Check values that are bigger than USHRT_MAX (0xFFFF)</span></div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> Packet4bi overflow_selector;</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keywordflow">if</span>(vec_any_gt(int_even, p4ui_low_mask)){</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> overflow_selector = vec_cmpgt(int_even, p4ui_low_mask);</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> low_even = vec_sel(low_even, p4ui_low_mask, overflow_selector);</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> }</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">if</span>(vec_any_gt(int_odd, p4ui_low_mask)){</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> overflow_selector = vec_cmpgt(int_odd, p4ui_low_mask);</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> low_odd = vec_sel(low_even, p4ui_low_mask, overflow_selector);</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> }</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">return</span> pmerge(low_even, low_odd);</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span>}</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> </div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span><span class="keyword">template</span><> EIGEN_STRONG_INLINE Packet8bf pcast<Packet8us, Packet8bf>(<span class="keyword">const</span> Packet8us& a) {</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="comment">//short -> int -> float -> bfloat16</span></div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">const</span> EIGEN_DECLARE_CONST_FAST_Packet4ui(low_mask, 0x0000FFFF);</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> Packet4ui int_cast = <span class="keyword">reinterpret_cast<</span>Packet4ui<span class="keyword">></span>(a);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> Packet4ui int_even = pand<Packet4ui>(int_cast, p4ui_low_mask);</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> Packet4ui int_odd = plogical_shift_right<16>(int_cast);</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> Packet4f float_even = pcast<Packet4ui, Packet4f>(int_even);</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> Packet4f float_odd = pcast<Packet4ui, Packet4f>(int_odd);</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordflow">return</span> F32ToBf16(float_even, float_odd);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span>}</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span><span class="keyword">template</span> <></div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span><span class="keyword">struct </span>type_casting_traits<bfloat16, float> {</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keyword">enum</span> {</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> VectorizedCast = 1,</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> SrcCoeffRatio = 1,</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> TgtCoeffRatio = 2</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> };</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span>};</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> </div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span><span class="keyword">template</span><> EIGEN_STRONG_INLINE Packet4f pcast<Packet8bf, Packet4f>(<span class="keyword">const</span> Packet8bf& a) {</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> Packet8us z = pset1<Packet8us>(0);</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span><span class="preprocessor">#ifdef _BIG_ENDIAN</span></div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast<</span>Packet4f<span class="keyword">></span>(vec_mergeh(a.m_val, z));</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast<</span>Packet4f<span class="keyword">></span>(vec_mergeh(z, a.m_val));</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span>}</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span><span class="keyword">template</span> <></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span><span class="keyword">struct </span>type_casting_traits<float, bfloat16> {</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">enum</span> {</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> VectorizedCast = 1,</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> SrcCoeffRatio = 2,</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> TgtCoeffRatio = 1</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> };</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span>};</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> </div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span><span class="keyword">template</span><> EIGEN_STRONG_INLINE Packet8bf pcast<Packet4f, Packet8bf>(<span class="keyword">const</span> Packet4f& a, <span class="keyword">const</span> Packet4f &b) {</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keywordflow">return</span> F32ToBf16Both(a, b);</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span>}</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span><span class="keyword">template</span><> EIGEN_STRONG_INLINE Packet4i preinterpret<Packet4i,Packet4f>(<span class="keyword">const</span> Packet4f& a) {</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast<</span>Packet4i<span class="keyword">></span>(a);</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span>}</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> </div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span><span class="keyword">template</span><> EIGEN_STRONG_INLINE Packet4f preinterpret<Packet4f,Packet4i>(<span class="keyword">const</span> Packet4i& a) {</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast<</span>Packet4f<span class="keyword">></span>(a);</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span>}</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span><span class="preprocessor">#ifdef EIGEN_VECTORIZE_VSX</span></div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span><span class="comment">// VSX support varies between different compilers and even different</span></div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span><span class="comment">// versions of the same compiler. For gcc version >= 4.9.3, we can use</span></div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span><span class="comment">// vec_cts to efficiently convert Packet2d to Packet2l. Otherwise, use</span></div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span><span class="comment">// a slow version that works with older compilers.</span></div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span><span class="comment">// Update: apparently vec_cts/vec_ctf intrinsics for 64-bit doubles</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span><span class="comment">// are buggy, https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70963</span></div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span><span class="keyword">template</span><></div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span><span class="keyword">inline</span> Packet2l pcast<Packet2d, Packet2l>(<span class="keyword">const</span> Packet2d& x) {</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span><span class="preprocessor">#if EIGEN_GNUC_STRICT_AT_LEAST(7,1,0)</span></div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="keywordflow">return</span> vec_cts(x, 0); <span class="comment">// TODO: check clang version.</span></div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span><span class="preprocessor">#else</span></div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordtype">double</span> tmp[2];</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> memcpy(tmp, &x, <span class="keyword">sizeof</span>(tmp));</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> Packet2l l = { <span class="keyword">static_cast<</span><span class="keywordtype">long</span> <span class="keywordtype">long</span><span class="keyword">></span>(tmp[0]),</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">static_cast<</span><span class="keywordtype">long</span> <span class="keywordtype">long</span><span class="keyword">></span>(tmp[1]) };</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keywordflow">return</span> l;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span>}</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span><span class="keyword">template</span><></div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span><span class="keyword">inline</span> Packet2d pcast<Packet2l, Packet2d>(<span class="keyword">const</span> Packet2l& x) {</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> tmp[2];</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> memcpy(tmp, &x, <span class="keyword">sizeof</span>(tmp));</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> Packet2d d = { <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(tmp[0]),</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(tmp[1]) };</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keywordflow">return</span> d;</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span>}</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> </div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span>} <span class="comment">// end namespace internal</span></div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span>} <span class="comment">// end namespace Eigen</span></div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> </div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span><span class="preprocessor">#endif </span><span class="comment">// EIGEN_TYPE_CASTING_ALTIVEC_H</span></div>
<div class="ttc" id="anamespaceEigen_html"><div class="ttname"><a href="namespaceEigen.html">Eigen</a></div><div class="ttdoc">Namespace containing all symbols from the Eigen library.</div><div class="ttdef"><b>Definition</b> Core:139</div></div>
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