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| <a href="_n_e_symm_8h.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2019 ARM Limited.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * of this software and associated documentation files (the "Software"), to</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * deal in the Software without restriction, including without limitation the</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * sell copies of the Software, and to permit persons to whom the Software is</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * furnished to do so, subject to the following conditions:</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * The above copyright notice and this permission notice shall be included in all</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * copies or substantial portions of the Software.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * SOFTWARE.</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> */</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#ifndef ARM_COMPUTE_NESYMM_H</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#define ARM_COMPUTE_NESYMM_H</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="_n_e_math_8h.xhtml">arm_compute/core/NEON/NEMath.h</a>"</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <arm_neon.h></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">namespace </span><a class="code" href="namespacearm__compute.xhtml">arm_compute</a></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> {</div><div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="namespacearm__compute.xhtml#a7a5eaeb85796337b6041e598afd4c4a3"> 32</a></span> <span class="keyword">using</span> <a class="code" href="namespacearm__compute.xhtml#a7a5eaeb85796337b6041e598afd4c4a3">qsymm8_t</a> = int8_t; <span class="comment">/**< 8 bit quantized symmetric scalar value */</span></div><div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="namespacearm__compute.xhtml#a33d1899b4ff31e4a36f93fa618978196"> 33</a></span> <span class="keyword">using</span> <a class="code" href="namespacearm__compute.xhtml#a33d1899b4ff31e4a36f93fa618978196">qsymm16_t</a> = int16_t; <span class="comment">/**< 16 bit quantized symmetric scalar value */</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="namespacearm__compute.xhtml#a4cff22f3ad85935b271be7c660fea33c"> 35</a></span> <span class="keyword">using</span> <a class="code" href="namespacearm__compute.xhtml#a4cff22f3ad85935b271be7c660fea33c">qsymm16x8_t</a> = int16x8_t; <span class="comment">/**< 16 bit quantized symmetric vector with 8 elements */</span></div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="namespacearm__compute.xhtml#a9ad60d47682e81883cb85a8ca97f3460"> 36</a></span> <span class="keyword">using</span> <a class="code" href="namespacearm__compute.xhtml#a9ad60d47682e81883cb85a8ca97f3460">qsymm16x8x2_t</a> = int16x8x2_t; <span class="comment">/**< 16 bit quantized symmetric vector with 16 elements */</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">/** Performs final quantization step on 8 signed 16-bit elements</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> *</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * @tparam is_bounded_relu Specified if a fused bounded relu should be applied</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> *</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * @param[in] in_s32 Input to be quantized.</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * @param[in] result_fixedpoint_multiplier Result multiplier parameter</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * @param[in] result_shift Result shift parameter</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * @param[in] min_s16 Relu lower bound</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * @param[in] max_s16 Relu upper bound</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> *</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * @return Quantized values</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> */</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">template</span> <<span class="keywordtype">bool</span> is_bounded_relu></div><div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="namespacearm__compute.xhtml#a0a7219ba563658bc8bbcde89f0b31553"> 51</a></span> int16x8_t <a class="code" href="namespacearm__compute.xhtml#a0a7219ba563658bc8bbcde89f0b31553">finalize_quantization_int16</a>(int32x4x2_t &in_s32,</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">int</span> result_fixedpoint_multiplier,</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  int32_t result_shift,</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  int16x8_t min_s16,</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  int16x8_t max_s16)</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> {</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span>(result_shift < 0)</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  {</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  in_s32.val[0] = vmulq_n_s32(in_s32.val[0], (1 << -result_shift));</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  in_s32.val[1] = vmulq_n_s32(in_s32.val[1], (1 << -result_shift));</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  in_s32.val[0] = vqrdmulhq_n_s32(in_s32.val[0], result_fixedpoint_multiplier);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  in_s32.val[1] = vqrdmulhq_n_s32(in_s32.val[1], result_fixedpoint_multiplier);</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  {</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// Fixed point multiplication with vector saturating rounding doubling multiply high with scalar</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  in_s32.val[0] = vqrdmulhq_n_s32(in_s32.val[0], result_fixedpoint_multiplier);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  in_s32.val[1] = vqrdmulhq_n_s32(in_s32.val[1], result_fixedpoint_multiplier);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// Round to the nearest division by a power-of-two using result_shift_s32</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  in_s32.val[0] = <a class="code" href="namespacearm__compute.xhtml#a77e02c19b498c3ff4ee373b0825cfd19">rounding_divide_by_pow2</a>(in_s32.val[0], result_shift);</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  in_s32.val[1] = <a class="code" href="namespacearm__compute.xhtml#a77e02c19b498c3ff4ee373b0825cfd19">rounding_divide_by_pow2</a>(in_s32.val[1], result_shift);</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// Convert S32 to S16</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  int16x8_t out_s16 = vcombine_s16(vqmovn_s32(in_s32.val[0]), vqmovn_s32(in_s32.val[1]));</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">if</span>(is_bounded_relu)</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  {</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  out_s16 = vmaxq_s16(out_s16, min_s16);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  out_s16 = vminq_s16(out_s16, max_s16);</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  }</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">return</span> out_s16;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> }</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"></span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment">/** Performs final quantization step on single signed 16-bit element</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="comment"> *</span></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="comment"> * @tparam is_bounded_relu Specified if a fused bounded relu should be applied</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"> *</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> * @param[in] in_value Input to be quantized.</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"> * @param[in] result_fixedpoint_multiplier Result multiplier parameter</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"> * @param[in] result_shift Result shift parameter</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"> * @param[in] min_s16 Relu lower bound</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> * @param[in] max_s16 Relu upper bound</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> *</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> * @return Quantized values</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> */</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">template</span> <<span class="keywordtype">bool</span> is_bounded_relu></div><div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="namespacearm__compute.xhtml#a395a304366dd27cfa29f2aaf11eeb82a"> 100</a></span> <span class="keyword">inline</span> int16_t <a class="code" href="namespacearm__compute.xhtml#a0a7219ba563658bc8bbcde89f0b31553">finalize_quantization_int16</a>(int32_t in_value, <span class="keywordtype">int</span> result_fixedpoint_multiplier,</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  int32_t result_shift, int16_t min_s16, int16_t max_s16)</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> {</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">if</span>(result_shift < 0)</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  {</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keyword">const</span> int64_t in_64 = static_cast<int64_t>(in_value) * (1 << (-result_shift)) * static_cast<int64_t>(result_fixedpoint_multiplier);</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  in_value = static_cast<int32_t>((in_64 + (1 << 30)) >> 31);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  }</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  {</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="comment">// Fixed point multiplication with vector saturating rounding doubling multiply high with scalar</span></div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">const</span> int64_t in_64 = static_cast<int64_t>(in_value) * static_cast<int64_t>(result_fixedpoint_multiplier);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="comment">// Shift value by result_shift_s32</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  in_value = <a class="code" href="namespacearm__compute.xhtml#a77e02c19b498c3ff4ee373b0825cfd19">rounding_divide_by_pow2</a>(static_cast<int32_t>((in_64 + (1 << 30)) >> 31), result_shift);</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  }</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="comment">// Bound the result</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  int16_t out_s16 = static_cast<int16_t>(std::max<int32_t>(-32768, std::min<int32_t>(32767, in_value)));</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">if</span>(is_bounded_relu)</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  {</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  out_s16 = static_cast<int16_t>(std::max(min_s16, std::min(max_s16, out_s16)));</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  }</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">return</span> out_s16;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> }</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment"></span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">/** Dequantize a neon vector holding 8 16-bit quantized values.</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment"> *</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment"> * @param[in] qv Input values to be dequantized.</span></div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="comment"> * @param[in] scale Quantization scale</span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="comment"> *</span></div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="comment"> * @return Dequantized values in a neon vector</span></div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="comment"> */</span></div><div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="namespacearm__compute.xhtml#aa9985607399e329fcb371a92c84a6acd"> 134</a></span> <span class="keyword">inline</span> float32x4x2_t <a class="code" href="namespacearm__compute.xhtml#aa9985607399e329fcb371a92c84a6acd">vdequantize_int16</a>(<span class="keyword">const</span> int16x8_t &qv, <span class="keywordtype">float</span> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#acec6d8ad52a28972fa74e071c1a63b6a">scale</a>)</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> {</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">const</span> float32x4_t vscale = vdupq_n_f32(<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#acec6d8ad52a28972fa74e071c1a63b6a">scale</a>);</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">const</span> float32x4x2_t vdequantized_input =</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  {</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  {</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  vmulq_f32(vcvtq_f32_s32(vmovl_s16(vget_low_s16(qv))), vscale),</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  vmulq_f32(vcvtq_f32_s32(vmovl_s16(vget_high_s16(qv))), vscale)</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  };</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">return</span> vdequantized_input;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> }</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment"></span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment">/** Quantize a neon vector holding 8 floating point values.</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment"> *</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment"> * @param[in] qv Input values to be quantized.</span></div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment"> * @param[in] scale Quantization scale</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment"> *</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment"> * @return A neon vector holding the quantized values</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment"> */</span></div><div class="line"><a name="l00154"></a><span class="lineno"><a class="line" href="namespacearm__compute.xhtml#ac5986edc0dbcd0c071107cafb98cbc39"> 154</a></span> <span class="keyword">inline</span> int16x8_t <a class="code" href="namespacearm__compute.xhtml#ac5986edc0dbcd0c071107cafb98cbc39">vquantize_int16</a>(<span class="keyword">const</span> float32x4x2_t &qv, <span class="keywordtype">float</span> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#acec6d8ad52a28972fa74e071c1a63b6a">scale</a>)</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> {</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keyword">const</span> float32x4_t vinvscale = vdupq_n_f32(1.f / <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#acec6d8ad52a28972fa74e071c1a63b6a">scale</a>);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">const</span> int32x4x2_t rf =</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  {</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  {</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="preprocessor">#ifdef __aarch64__</span></div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  vcvtnq_s32_f32(vmulq_f32(qv.val[0], vinvscale)),</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  vcvtnq_s32_f32(vmulq_f32(qv.val[1], vinvscale))</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="preprocessor">#else //__aarch64__</span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  vcvtq_s32_f32(vmulq_f32(qv.val[0], vinvscale)),</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  vcvtq_s32_f32(vmulq_f32(qv.val[1], vinvscale))</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="preprocessor">#endif //__aarch64__</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  };</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">return</span> vcombine_s16(vqmovn_s32(rf.val[0]), vqmovn_s32(rf.val[1]));</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> }</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"></span></div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment">/** Dequantize a neon vector holding 16 16-bit quantized values.</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="comment"> *</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"> * @param[in] qv Input values to be dequantized.</span></div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="comment"> * @param[in] qi Quantization information to be used in the computation.</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="comment"> *</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="comment"> * @return Dequantized values in a neon vector</span></div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="comment"> */</span></div><div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="namespacearm__compute.xhtml#a8ffa773c3e171fa1e0abfda9f1f23845"> 180</a></span> <span class="keyword">inline</span> float32x4x4_t <a class="code" href="namespacearm__compute.xhtml#a485ae62f3ade6c8d33c5c2e85b29c3a7">vdequantize</a>(<span class="keyword">const</span> int16x8x2_t &qv, <span class="keyword">const</span> <a class="code" href="structarm__compute_1_1_uniform_quantization_info.xhtml">UniformQuantizationInfo</a> &qi)</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> {</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#acec6d8ad52a28972fa74e071c1a63b6a">scale</a> = qi.<a class="code" href="structarm__compute_1_1_uniform_quantization_info.xhtml#a1d28dec57cce925ad92342891bd71e7c">scale</a>;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">const</span> float32x4_t vscale = vdupq_n_f32(<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#acec6d8ad52a28972fa74e071c1a63b6a">scale</a>);</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">const</span> float32x4x4_t vdequantized_input =</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  {</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  {</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  vmulq_f32(vcvtq_f32_s32(vmovl_s16(vget_low_s16(qv.val[0]))), vscale),</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  vmulq_f32(vcvtq_f32_s32(vmovl_s16(vget_high_s16(qv.val[0]))), vscale),</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  vmulq_f32(vcvtq_f32_s32(vmovl_s16(vget_low_s16(qv.val[1]))), vscale),</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  vmulq_f32(vcvtq_f32_s32(vmovl_s16(vget_high_s16(qv.val[1]))), vscale),</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  };</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">return</span> vdequantized_input;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> }</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="comment"></span></div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="comment">/** Quantize a neon vector holding 16 floating point values.</span></div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="comment"> *</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="comment"> * @param[in] qv Input values to be quantized.</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="comment"> * @param[in] qi Quantization information to be used in the computation.</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> <span class="comment"> *</span></div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="comment"> * @return A neon vector holding the quantized values</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> <span class="comment"> */</span></div><div class="line"><a name="l00203"></a><span class="lineno"><a class="line" href="namespacearm__compute.xhtml#a926c75703af37a5677a6bac0198902b0"> 203</a></span> <span class="keyword">inline</span> <a class="code" href="namespacearm__compute.xhtml#a9ad60d47682e81883cb85a8ca97f3460">qsymm16x8x2_t</a> <a class="code" href="namespacearm__compute.xhtml#a926c75703af37a5677a6bac0198902b0">vquantize_qsymm16</a>(<span class="keyword">const</span> float32x4x4_t &qv, <span class="keyword">const</span> <a class="code" href="structarm__compute_1_1_uniform_quantization_info.xhtml">UniformQuantizationInfo</a> &qi)</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> {</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">const</span> <span class="keywordtype">float</span> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#acec6d8ad52a28972fa74e071c1a63b6a">scale</a> = qi.<a class="code" href="structarm__compute_1_1_uniform_quantization_info.xhtml#a1d28dec57cce925ad92342891bd71e7c">scale</a>;</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <a class="code" href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a>(<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#acec6d8ad52a28972fa74e071c1a63b6a">scale</a> == 0.f);</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keyword">const</span> float32x4_t vinvscale = vdupq_n_f32(1.f / <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#acec6d8ad52a28972fa74e071c1a63b6a">scale</a>);</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keyword">const</span> int32x4x4_t rf =</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  {</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  {</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="preprocessor">#ifdef __aarch64__</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  vcvtnq_s32_f32(vmulq_f32(qv.val[0], vinvscale)),</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  vcvtnq_s32_f32(vmulq_f32(qv.val[1], vinvscale)),</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  vcvtnq_s32_f32(vmulq_f32(qv.val[2], vinvscale)),</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  vcvtnq_s32_f32(vmulq_f32(qv.val[3], vinvscale)),</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="preprocessor">#else //__aarch64__</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  vcvtq_s32_f32(vmulq_f32(qv.val[0], vinvscale)),</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  vcvtq_s32_f32(vmulq_f32(qv.val[1], vinvscale)),</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  vcvtq_s32_f32(vmulq_f32(qv.val[2], vinvscale)),</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  vcvtq_s32_f32(vmulq_f32(qv.val[3], vinvscale)),</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="preprocessor">#endif //__aarch64__</span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  }</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  };</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keyword">const</span> <a class="code" href="namespacearm__compute.xhtml#a9ad60d47682e81883cb85a8ca97f3460">qsymm16x8x2_t</a> res =</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  {</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  vcombine_s16(vqmovn_s32(rf.val[0]), vqmovn_s32(rf.val[1])),</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  vcombine_s16(vqmovn_s32(rf.val[2]), vqmovn_s32(rf.val[3])),</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  };</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">return</span> res;</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> }</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> } <span class="comment">// namespace arm_compute</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="preprocessor">#endif // ARM_COMPUTE_NESYMM_H</span></div><div class="ttc" id="namespacearm__compute_xhtml_a7a5eaeb85796337b6041e598afd4c4a3"><div class="ttname"><a href="namespacearm__compute.xhtml#a7a5eaeb85796337b6041e598afd4c4a3">arm_compute::qsymm8_t</a></div><div class="ttdeci">int8_t qsymm8_t</div><div class="ttdoc">8 bit quantized symmetric scalar value</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_symm_8h_source.xhtml#l00032">NESymm.h:32</a></div></div> |
| <div class="ttc" id="namespacearm__compute_xhtml_a926c75703af37a5677a6bac0198902b0"><div class="ttname"><a href="namespacearm__compute.xhtml#a926c75703af37a5677a6bac0198902b0">arm_compute::vquantize_qsymm16</a></div><div class="ttdeci">qsymm16x8x2_t vquantize_qsymm16(const float32x4x4_t &qv, const UniformQuantizationInfo &qi)</div><div class="ttdoc">Quantize a neon vector holding 16 floating point values.</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_symm_8h_source.xhtml#l00203">NESymm.h:203</a></div></div> |
| <div class="ttc" id="namespacearm__compute_xhtml_a485ae62f3ade6c8d33c5c2e85b29c3a7"><div class="ttname"><a href="namespacearm__compute.xhtml#a485ae62f3ade6c8d33c5c2e85b29c3a7">arm_compute::vdequantize</a></div><div class="ttdeci">float32x4x2_t vdequantize(const uint8x8_t &qv, const UniformQuantizationInfo &qi)</div><div class="ttdoc">Dequantize a neon vector holding 8 quantized values.</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_asymm_8h_source.xhtml#l00421">NEAsymm.h:421</a></div></div> |
| <div class="ttc" id="namespacearm__compute_xhtml_aa9985607399e329fcb371a92c84a6acd"><div class="ttname"><a href="namespacearm__compute.xhtml#aa9985607399e329fcb371a92c84a6acd">arm_compute::vdequantize_int16</a></div><div class="ttdeci">float32x4x2_t vdequantize_int16(const int16x8_t &qv, float scale)</div><div class="ttdoc">Dequantize a neon vector holding 8 16-bit quantized values.</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_symm_8h_source.xhtml#l00134">NESymm.h:134</a></div></div> |
| <div class="ttc" id="_error_8h_xhtml_a54a6080c9f4df1f908e57a9bbb46f5da"><div class="ttname"><a href="_error_8h.xhtml#a54a6080c9f4df1f908e57a9bbb46f5da">ARM_COMPUTE_ERROR_ON</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR_ON(cond)</div><div class="ttdoc">If the condition is true then an error message is printed and an exception thrown.</div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00466">Error.h:466</a></div></div> |
| <div class="ttc" id="structarm__compute_1_1_uniform_quantization_info_xhtml"><div class="ttname"><a href="structarm__compute_1_1_uniform_quantization_info.xhtml">arm_compute::UniformQuantizationInfo</a></div><div class="ttdoc">Quantization info when assuming per layer quantization.</div><div class="ttdef"><b>Definition:</b> <a href="_quantization_info_8h_source.xhtml#l00042">QuantizationInfo.h:42</a></div></div> |
| <div class="ttc" id="namespacearm__compute_xhtml_ac5986edc0dbcd0c071107cafb98cbc39"><div class="ttname"><a href="namespacearm__compute.xhtml#ac5986edc0dbcd0c071107cafb98cbc39">arm_compute::vquantize_int16</a></div><div class="ttdeci">int16x8_t vquantize_int16(const float32x4x2_t &qv, float scale)</div><div class="ttdoc">Quantize a neon vector holding 8 floating point values.</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_symm_8h_source.xhtml#l00154">NESymm.h:154</a></div></div> |
| <div class="ttc" id="structarm__compute_1_1_uniform_quantization_info_xhtml_a1d28dec57cce925ad92342891bd71e7c"><div class="ttname"><a href="structarm__compute_1_1_uniform_quantization_info.xhtml#a1d28dec57cce925ad92342891bd71e7c">arm_compute::UniformQuantizationInfo::scale</a></div><div class="ttdeci">float scale</div><div class="ttdef"><b>Definition:</b> <a href="_quantization_info_8h_source.xhtml#l00064">QuantizationInfo.h:64</a></div></div> |
| <div class="ttc" id="namespacearm__compute_xhtml"><div class="ttname"><a href="namespacearm__compute.xhtml">arm_compute</a></div><div class="ttdoc">Copyright (c) 2017-2020 ARM Limited.</div><div class="ttdef"><b>Definition:</b> <a href="00__introduction_8dox_source.xhtml#l00024">00_introduction.dox:24</a></div></div> |
| <div class="ttc" id="namespacearm__compute_xhtml_a4cff22f3ad85935b271be7c660fea33c"><div class="ttname"><a href="namespacearm__compute.xhtml#a4cff22f3ad85935b271be7c660fea33c">arm_compute::qsymm16x8_t</a></div><div class="ttdeci">int16x8_t qsymm16x8_t</div><div class="ttdoc">16 bit quantized symmetric vector with 8 elements</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_symm_8h_source.xhtml#l00035">NESymm.h:35</a></div></div> |
| <div class="ttc" id="namespacearm__compute_xhtml_a0a7219ba563658bc8bbcde89f0b31553"><div class="ttname"><a href="namespacearm__compute.xhtml#a0a7219ba563658bc8bbcde89f0b31553">arm_compute::finalize_quantization_int16</a></div><div class="ttdeci">int16x8_t finalize_quantization_int16(int32x4x2_t &in_s32, int result_fixedpoint_multiplier, int32_t result_shift, int16x8_t min_s16, int16x8_t max_s16)</div><div class="ttdoc">Performs final quantization step on 8 signed 16-bit elements.</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_symm_8h_source.xhtml#l00051">NESymm.h:51</a></div></div> |
| <div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_acec6d8ad52a28972fa74e071c1a63b6a"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#acec6d8ad52a28972fa74e071c1a63b6a">arm_compute::test::validation::scale</a></div><div class="ttdeci">scale</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_o_n_2_pixel_wise_multiplication_8cpp_source.xhtml#l00375">PixelWiseMultiplication.cpp:375</a></div></div> |
| <div class="ttc" id="namespacearm__compute_xhtml_a77e02c19b498c3ff4ee373b0825cfd19"><div class="ttname"><a href="namespacearm__compute.xhtml#a77e02c19b498c3ff4ee373b0825cfd19">arm_compute::rounding_divide_by_pow2</a></div><div class="ttdeci">int32x4_t rounding_divide_by_pow2(int32x4_t x, int32x4_t exponent)</div><div class="ttdoc">Round to the nearest division by a power-of-two using exponent.</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_math_8inl_source.xhtml#l00297">NEMath.inl:297</a></div></div> |
| <div class="ttc" id="namespacearm__compute_xhtml_a9ad60d47682e81883cb85a8ca97f3460"><div class="ttname"><a href="namespacearm__compute.xhtml#a9ad60d47682e81883cb85a8ca97f3460">arm_compute::qsymm16x8x2_t</a></div><div class="ttdeci">int16x8x2_t qsymm16x8x2_t</div><div class="ttdoc">16 bit quantized symmetric vector with 16 elements</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_symm_8h_source.xhtml#l00036">NESymm.h:36</a></div></div> |
| <div class="ttc" id="_n_e_math_8h_xhtml"><div class="ttname"><a href="_n_e_math_8h.xhtml">NEMath.h</a></div></div> |
| <div class="ttc" id="namespacearm__compute_xhtml_a33d1899b4ff31e4a36f93fa618978196"><div class="ttname"><a href="namespacearm__compute.xhtml#a33d1899b4ff31e4a36f93fa618978196">arm_compute::qsymm16_t</a></div><div class="ttdeci">int16_t qsymm16_t</div><div class="ttdoc">16 bit quantized symmetric scalar value</div><div class="ttdef"><b>Definition:</b> <a href="_n_e_symm_8h_source.xhtml#l00033">NESymm.h:33</a></div></div> |
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