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  108.   <div class="headertitle"><div class="title">ARMNeon.h</div></div>
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  110. <div class="contents">
    111. 

  111. <a href="_a_r_m_neon_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)</span></div>
    112. 

  112. <div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">// SPDX-FileCopyrightText: 2022 Jorrit Rouwe</span></div>
    113. 

  113. <div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment">// SPDX-License-Identifier: MIT</span></div>
    114. 

  114. <div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span> </div>
    115. 

  115. <div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="preprocessor">#pragma once</span></div>
    116. 

  116. <div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span> </div>
    117. 

  117. <div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="preprocessor">#ifdef JPH_USE_NEON</span></div>
    118. 

  118. <div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span> </div>
    119. 

  119. <div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment">// Constructing NEON values</span></div>
    120. 

  120. <div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="preprocessor">#ifdef JPH_COMPILER_MSVC</span></div>
    121. 

  121. <div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="preprocessor">    #define JPH_NEON_INT32x4(v1, v2, v3, v4) { int64_t(v1) + (int64_t(v2) &lt;&lt; 32), int64_t(v3) + (int64_t(v4) &lt;&lt; 32) }</span></div>
    122. 

  122. <div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="preprocessor">    #define JPH_NEON_UINT32x4(v1, v2, v3, v4) { uint64_t(v1) + (uint64_t(v2) &lt;&lt; 32), uint64_t(v3) + (uint64_t(v4) &lt;&lt; 32) }</span></div>
    123. 

  123. <div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="preprocessor">    #define JPH_NEON_INT8x16(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) { int64_t(v1) + (int64_t(v2) &lt;&lt; 8) + (int64_t(v3) &lt;&lt; 16) + (int64_t(v4) &lt;&lt; 24) + (int64_t(v5) &lt;&lt; 32) + (int64_t(v6) &lt;&lt; 40) + (int64_t(v7) &lt;&lt; 48) + (int64_t(v8) &lt;&lt; 56), int64_t(v9) + (int64_t(v10) &lt;&lt; 8) + (int64_t(v11) &lt;&lt; 16) + (int64_t(v12) &lt;&lt; 24) + (int64_t(v13) &lt;&lt; 32) + (int64_t(v14) &lt;&lt; 40) + (int64_t(v15) &lt;&lt; 48) + (int64_t(v16) &lt;&lt; 56) }</span></div>
    124. 

  124. <div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="preprocessor">    #define JPH_NEON_UINT8x16(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) { uint64_t(v1) + (uint64_t(v2) &lt;&lt; 8) + (uint64_t(v3) &lt;&lt; 16) + (uint64_t(v4) &lt;&lt; 24) + (uint64_t(v5) &lt;&lt; 32) + (uint64_t(v6) &lt;&lt; 40) + (uint64_t(v7) &lt;&lt; 48) + (uint64_t(v8) &lt;&lt; 56), uint64_t(v9) + (uint64_t(v10) &lt;&lt; 8) + (uint64_t(v11) &lt;&lt; 16) + (uint64_t(v12) &lt;&lt; 24) + (uint64_t(v13) &lt;&lt; 32) + (uint64_t(v14) &lt;&lt; 40) + (uint64_t(v15) &lt;&lt; 48) + (uint64_t(v16) &lt;&lt; 56) }</span></div>
    125. 

  125. <div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="preprocessor">#else</span></div>
    126. 

  126. <div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="preprocessor">    #define JPH_NEON_INT32x4(v1, v2, v3, v4) { v1, v2, v3, v4 }</span></div>
    127. 

  127. <div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="preprocessor">    #define JPH_NEON_UINT32x4(v1, v2, v3, v4) { v1, v2, v3, v4 }</span></div>
    128. 

  128. <div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="preprocessor">    #define JPH_NEON_INT8x16(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) { v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16 }</span></div>
    129. 

  129. <div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="preprocessor">    #define JPH_NEON_UINT8x16(v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) { v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16 }</span></div>
    130. 

  130. <div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="preprocessor">#endif</span></div>
    131. 

  131. <div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span> </div>
    132. 

  132. <div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="comment">// MSVC and GCC prior to version 12 don&#39;t define __builtin_shufflevector</span></div>
    133. 

  133. <div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="preprocessor">#if defined(JPH_COMPILER_MSVC) || (defined(JPH_COMPILER_GCC) &amp;&amp; __GNUC__ &lt; 12)</span></div>
    134. 

  134. <div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span>    <a class="code hl_define" href="_core_8h.html#ad14098b68b8c44ea6112601031268405">JPH_NAMESPACE_BEGIN</a></div>
    135. 

  135. <div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span> </div>
    136. 

  136. <div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span>    <span class="comment">// Generic shuffle vector template</span></div>
    137. 

  137. <div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span>    <span class="keyword">template</span> &lt;<span class="keywordtype">unsigned</span> I1, <span class="keywordtype">unsigned</span> I2, <span class="keywordtype">unsigned</span> I3, <span class="keywordtype">unsigned</span> I4&gt;</div>
    138. 

  138. <div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span>    JPH_INLINE float32x4_t NeonShuffleFloat32x4(float32x4_t inV1, float32x4_t inV2)</div>
    139. 

  139. <div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span>    {</div>
    140. 

  140. <div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span>        float32x4_t ret;</div>
    141. 

  141. <div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span>        ret = vmovq_n_f32(vgetq_lane_f32(I1 &gt;= 4? inV2 : inV1, I1 &amp; 0b11));</div>
    142. 

  142. <div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span>        ret = vsetq_lane_f32(vgetq_lane_f32(I2 &gt;= 4? inV2 : inV1, I2 &amp; 0b11), ret, 1);</div>
    143. 

  143. <div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span>        ret = vsetq_lane_f32(vgetq_lane_f32(I3 &gt;= 4? inV2 : inV1, I3 &amp; 0b11), ret, 2);</div>
    144. 

  144. <div class="line"><a id="l00034" name="l00034"></a><span class="lineno">   34</span>        ret = vsetq_lane_f32(vgetq_lane_f32(I4 &gt;= 4? inV2 : inV1, I4 &amp; 0b11), ret, 3);</div>
    145. 

  145. <div class="line"><a id="l00035" name="l00035"></a><span class="lineno">   35</span>        <span class="keywordflow">return</span> ret;</div>
    146. 

  146. <div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span>    }</div>
    147. 

  147. <div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span> </div>
    148. 

  148. <div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span>    <span class="comment">// Specializations</span></div>
    149. 

  149. <div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>    <span class="keyword">template</span> &lt;&gt;</div>
    150. 

  150. <div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>    JPH_INLINE float32x4_t NeonShuffleFloat32x4&lt;0, 1, 2, 2&gt;(float32x4_t inV1, float32x4_t inV2)</div>
    151. 

  151. <div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>    {</div>
    152. 

  152. <div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>        <span class="keywordflow">return</span> vcombine_f32(vget_low_f32(inV1), vdup_lane_f32(vget_high_f32(inV1), 0));</div>
    153. 

  153. <div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>    }</div>
    154. 

  154. <div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span> </div>
    155. 

  155. <div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span>    <span class="keyword">template</span> &lt;&gt;</div>
    156. 

  156. <div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>    JPH_INLINE float32x4_t NeonShuffleFloat32x4&lt;0, 1, 3, 3&gt;(float32x4_t inV1, float32x4_t inV2)</div>
    157. 

  157. <div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>    {</div>
    158. 

  158. <div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>        <span class="keywordflow">return</span> vcombine_f32(vget_low_f32(inV1), vdup_lane_f32(vget_high_f32(inV1), 1));</div>
    159. 

  159. <div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>    }</div>
    160. 

  160. <div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span> </div>
    161. 

  161. <div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>    <span class="keyword">template</span> &lt;&gt;</div>
    162. 

  162. <div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>    JPH_INLINE float32x4_t NeonShuffleFloat32x4&lt;0, 1, 2, 3&gt;(float32x4_t inV1, float32x4_t inV2)</div>
    163. 

  163. <div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>    {</div>
    164. 

  164. <div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>        <span class="keywordflow">return</span> inV1;</div>
    165. 

  165. <div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>    }</div>
    166. 

  166. <div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span> </div>
    167. 

  167. <div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span>    <span class="keyword">template</span> &lt;&gt;</div>
    168. 

  168. <div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>    JPH_INLINE float32x4_t NeonShuffleFloat32x4&lt;1, 0, 3, 2&gt;(float32x4_t inV1, float32x4_t inV2)</div>
    169. 

  169. <div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>    {</div>
    170. 

  170. <div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>        <span class="keywordflow">return</span> vcombine_f32(vrev64_f32(vget_low_f32(inV1)), vrev64_f32(vget_high_f32(inV1)));</div>
    171. 

  171. <div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>    }</div>
    172. 

  172. <div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span> </div>
    173. 

  173. <div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    <span class="keyword">template</span> &lt;&gt;</div>
    174. 

  174. <div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>    JPH_INLINE float32x4_t NeonShuffleFloat32x4&lt;2, 2, 1, 0&gt;(float32x4_t inV1, float32x4_t inV2)</div>
    175. 

  175. <div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>    {</div>
    176. 

  176. <div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>        <span class="keywordflow">return</span> vcombine_f32(vdup_lane_f32(vget_high_f32(inV1), 0), vrev64_f32(vget_low_f32(inV1)));</div>
    177. 

  177. <div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>    }</div>
    178. 

  178. <div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span> </div>
    179. 

  179. <div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span>    <span class="keyword">template</span> &lt;&gt;</div>
    180. 

  180. <div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>    JPH_INLINE float32x4_t NeonShuffleFloat32x4&lt;2, 3, 0, 1&gt;(float32x4_t inV1, float32x4_t inV2)</div>
    181. 

  181. <div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>    {</div>
    182. 

  182. <div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>        <span class="keywordflow">return</span> vcombine_f32(vget_high_f32(inV1), vget_low_f32(inV1));</div>
    183. 

  183. <div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>    }</div>
    184. 

  184. <div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span> </div>
    185. 

  185. <div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>    <span class="comment">// Used extensively by cross product</span></div>
    186. 

  186. <div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>    <span class="keyword">template</span> &lt;&gt;</div>
    187. 

  187. <div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>    JPH_INLINE float32x4_t NeonShuffleFloat32x4&lt;1, 2, 0, 0&gt;(float32x4_t inV1, float32x4_t inV2)</div>
    188. 

  188. <div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>    {</div>
    189. 

  189. <div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span>        <span class="keyword">static</span> uint8x16_t table = JPH_NEON_UINT8x16(0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x02, 0x03);</div>
    190. 

  190. <div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>        <span class="keywordflow">return</span> vreinterpretq_f32_u8(vqtbl1q_u8(vreinterpretq_u8_f32(inV1), table));</div>
    191. 

  191. <div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>    }</div>
    192. 

  192. <div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span> </div>
    193. 

  193. <div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>    <span class="comment">// Shuffle a vector</span></div>
    194. 

  194. <div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span><span class="preprocessor">    #define JPH_NEON_SHUFFLE_F32x4(vec1, vec2, index1, index2, index3, index4) NeonShuffleFloat32x4&lt;index1, index2, index3, index4&gt;(vec1, vec2)</span></div>
    195. 

  195. <div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span><span class="preprocessor">    #define JPH_NEON_SHUFFLE_U32x4(vec1, vec2, index1, index2, index3, index4) vreinterpretq_u32_f32((NeonShuffleFloat32x4&lt;index1, index2, index3, index4&gt;(vreinterpretq_f32_u32(vec1), vreinterpretq_f32_u32(vec2))))</span></div>
    196. 

  196. <div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span> </div>
    197. 

  197. <div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>    <a class="code hl_define" href="_core_8h.html#a73da8725998b00321a9db341202d650d">JPH_NAMESPACE_END</a></div>
    198. 

  198. <div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span><span class="preprocessor">#else</span></div>
    199. 

  199. <div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>    <span class="comment">// Shuffle a vector</span></div>
    200. 

  200. <div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span><span class="preprocessor">    #define JPH_NEON_SHUFFLE_F32x4(vec1, vec2, index1, index2, index3, index4) __builtin_shufflevector(vec1, vec2, index1, index2, index3, index4)</span></div>
    201. 

  201. <div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span><span class="preprocessor">    #define JPH_NEON_SHUFFLE_U32x4(vec1, vec2, index1, index2, index3, index4) __builtin_shufflevector(vec1, vec2, index1, index2, index3, index4)</span></div>
    202. 

  202. <div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span><span class="preprocessor">#endif</span></div>
    203. 

  203. <div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span> </div>
    204. 

  204. <div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span><span class="preprocessor">#endif </span><span class="comment">// JPH_USE_NEON</span></div>
    205. 

  205. <div class="ttc" id="a_core_8h_html_a73da8725998b00321a9db341202d650d"><div class="ttname"><a href="_core_8h.html#a73da8725998b00321a9db341202d650d">JPH_NAMESPACE_END</a></div><div class="ttdeci">#define JPH_NAMESPACE_END</div><div class="ttdef"><b>Definition</b> Core.h:425</div></div>
    206. 

  206. <div class="ttc" id="a_core_8h_html_ad14098b68b8c44ea6112601031268405"><div class="ttname"><a href="_core_8h.html#ad14098b68b8c44ea6112601031268405">JPH_NAMESPACE_BEGIN</a></div><div class="ttdeci">#define JPH_NAMESPACE_BEGIN</div><div class="ttdef"><b>Definition</b> Core.h:419</div></div>
    207. 

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