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<div class="title">AsymmHelpers.cpp</div> </div>
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<a href="_asymm_helpers_8cpp.xhtml">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> * Copyright (c) 2017-2020 ARM Limited.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<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>&#160;<span class="comment"> * of this software and associated documentation files (the &quot;Software&quot;), to</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<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>&#160;<span class="comment"> * copies or substantial portions of the Software.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<span class="comment"> * SOFTWARE.</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_asymm_helpers_8h.xhtml">arm_compute/core/utils/quantization/AsymmHelpers.h</a>&quot;</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="arm__compute_2core_2_helpers_8h.xhtml">arm_compute/core/Helpers.h</a>&quot;</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &lt;cmath&gt;</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &lt;limits&gt;</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#include &lt;numeric&gt;</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearm__compute.xhtml">arm_compute</a></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;{</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="keyword">namespace </span>quantization</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;{</div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1quantization.xhtml#ab153bd5bebd2a695c5d2c79801d0abec"> 35</a></span>&#160;constexpr int64_t <a class="code" href="namespacearm__compute_1_1quantization.xhtml#ab153bd5bebd2a695c5d2c79801d0abec">fixed_point_one_Q0</a> = (1LL &lt;&lt; 31);</div><div class="line"><a name="l00036"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1quantization.xhtml#a552dc3787d7ea1675f3e4e8993501d58"> 36</a></span>&#160;constexpr <span class="keywordtype">float</span> <a class="code" href="namespacearm__compute_1_1quantization.xhtml#a552dc3787d7ea1675f3e4e8993501d58">epsilon</a> = 0.00001f;</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1quantization.xhtml#a63fdf412c27b0151bd4495c64cc112da"> 38</a></span>&#160;<a class="code" href="classarm__compute_1_1_status.xhtml">Status</a> <a class="code" href="namespacearm__compute_1_1quantization.xhtml#a63fdf412c27b0151bd4495c64cc112da">calculate_quantized_multiplier</a>(<span class="keywordtype">float</span> multiplier, int32_t *quant_multiplier, int32_t *<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a979a54caef6e77ce0259e427136847e8">shift</a>)</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;{</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keywordflow">if</span>(multiplier &gt;= 1.f)</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; {</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <a class="code" href="classarm__compute_1_1_status.xhtml">Status</a> status = <a class="code" href="namespacearm__compute_1_1quantization.xhtml#a34f24bcb4a4017178a0fcfb2f6e2c954">calculate_quantized_multiplier_greater_than_one</a>(multiplier, quant_multiplier, <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a979a54caef6e77ce0259e427136847e8">shift</a>);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; *<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a979a54caef6e77ce0259e427136847e8">shift</a> *= -1;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keywordflow">return</span> status;</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; }</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="keywordflow">else</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; {</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keywordflow">return</span> <a class="code" href="namespacearm__compute_1_1quantization.xhtml#acd91a85bed01075d0b9384f065f94039">calculate_quantized_multiplier_less_than_one</a>(multiplier, quant_multiplier, <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a979a54caef6e77ce0259e427136847e8">shift</a>);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; }</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;}</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1quantization.xhtml#acd91a85bed01075d0b9384f065f94039"> 52</a></span>&#160;<a class="code" href="classarm__compute_1_1_status.xhtml">Status</a> <a class="code" href="namespacearm__compute_1_1quantization.xhtml#acd91a85bed01075d0b9384f065f94039">calculate_quantized_multiplier_less_than_one</a>(<span class="keywordtype">float</span> multiplier,</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; int32_t *quant_multiplier,</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; int32_t *right_shift)</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160;{</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(quant_multiplier == <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(right_shift == <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(multiplier &lt; -<a class="code" href="namespacearm__compute_1_1quantization.xhtml#a552dc3787d7ea1675f3e4e8993501d58">epsilon</a>);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(multiplier &gt; 1.0f + <a class="code" href="namespacearm__compute_1_1quantization.xhtml#a552dc3787d7ea1675f3e4e8993501d58">epsilon</a>);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keywordflow">if</span>(std::fabs(0.0f - multiplier) &lt; <a class="code" href="namespacearm__compute_1_1quantization.xhtml#a552dc3787d7ea1675f3e4e8993501d58">epsilon</a>)</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; {</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; *quant_multiplier = 0;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; *right_shift = 0;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classarm__compute_1_1_status.xhtml">Status</a>{};</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; }</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="keywordtype">int</span> shift_exp = 0;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keyword">const</span> <span class="keywordtype">double</span> q = std::frexp(multiplier, &amp;shift_exp);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; *right_shift = -1 * shift_exp;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keyword">auto</span> q_fixed = static_cast&lt;int64_t&gt;(<a class="code" href="namespacearm__compute_1_1support_1_1cpp11.xhtml#ab71c35ca207b916a9f8b0336ab88484e">support::cpp11::round</a>(q * <a class="code" href="namespacearm__compute_1_1quantization.xhtml#ab153bd5bebd2a695c5d2c79801d0abec">fixed_point_one_Q0</a>));</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(q_fixed &gt; <a class="code" href="namespacearm__compute_1_1quantization.xhtml#ab153bd5bebd2a695c5d2c79801d0abec">fixed_point_one_Q0</a>);</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="keywordflow">if</span>(q_fixed == <a class="code" href="namespacearm__compute_1_1quantization.xhtml#ab153bd5bebd2a695c5d2c79801d0abec">fixed_point_one_Q0</a>)</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; {</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; q_fixed /= 2;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; --*right_shift;</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; }</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(*right_shift &lt; 0);</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(q_fixed &gt; std::numeric_limits&lt;int32_t&gt;::max());</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; *quant_multiplier = static_cast&lt;int32_t&gt;(q_fixed);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classarm__compute_1_1_status.xhtml">Status</a>{};</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;}</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160;</div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1quantization.xhtml#a34f24bcb4a4017178a0fcfb2f6e2c954"> 84</a></span>&#160;<a class="code" href="classarm__compute_1_1_status.xhtml">Status</a> <a class="code" href="namespacearm__compute_1_1quantization.xhtml#a34f24bcb4a4017178a0fcfb2f6e2c954">calculate_quantized_multiplier_greater_than_one</a>(<span class="keywordtype">float</span> multiplier,</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; int32_t *quantized_multiplier,</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; int32_t *left_shift)</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;{</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(quantized_multiplier == <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(left_shift == <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(multiplier &lt; 1.f);</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <span class="keywordtype">int</span> shift_exp = 0;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keyword">const</span> <span class="keywordtype">double</span> q = std::frexp(multiplier, &amp;shift_exp);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; *left_shift = shift_exp;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keyword">auto</span> q_fixed = static_cast&lt;int64_t&gt;(<a class="code" href="namespacearm__compute_1_1support_1_1cpp11.xhtml#ab71c35ca207b916a9f8b0336ab88484e">support::cpp11::round</a>(q * <a class="code" href="namespacearm__compute_1_1quantization.xhtml#ab153bd5bebd2a695c5d2c79801d0abec">fixed_point_one_Q0</a>));</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(q_fixed &gt; <a class="code" href="namespacearm__compute_1_1quantization.xhtml#ab153bd5bebd2a695c5d2c79801d0abec">fixed_point_one_Q0</a>);</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keywordflow">if</span>(q_fixed == <a class="code" href="namespacearm__compute_1_1quantization.xhtml#ab153bd5bebd2a695c5d2c79801d0abec">fixed_point_one_Q0</a>)</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; {</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; q_fixed /= 2;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; ++*left_shift;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; }</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(*left_shift &lt; 0);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(q_fixed &gt; std::numeric_limits&lt;int32_t&gt;::max());</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; *quantized_multiplier = static_cast&lt;int32_t&gt;(q_fixed);</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classarm__compute_1_1_status.xhtml">Status</a>{};</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;}</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;</div><div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1quantization.xhtml#a7c9cea57b791676637d2fda3637d340e"> 109</a></span>&#160;<a class="code" href="classarm__compute_1_1_status.xhtml">arm_compute::Status</a> <a class="code" href="namespacearm__compute_1_1quantization.xhtml#a7c9cea57b791676637d2fda3637d340e">calculate_quantized_multipliers</a>(<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_quantization_info.xhtml">QuantizationInfo</a> &amp;iq_info,</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_quantization_info.xhtml">QuantizationInfo</a> &amp;wq_info,</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_quantization_info.xhtml">QuantizationInfo</a> &amp;oq_info,</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <a class="code" href="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info.xhtml">GEMMLowpOutputStageInfo</a> &amp;stage_info)</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;{</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(iq_info.<a class="code" href="classarm__compute_1_1_quantization_info.xhtml#af21c7fddee28e9aa0a37c633300db0e0">scale</a>().empty());</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(wq_info.<a class="code" href="classarm__compute_1_1_quantization_info.xhtml#af21c7fddee28e9aa0a37c633300db0e0">scale</a>().empty());</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <a class="code" href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a>(oq_info.<a class="code" href="classarm__compute_1_1_quantization_info.xhtml#af21c7fddee28e9aa0a37c633300db0e0">scale</a>().empty());</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size = wq_info.<a class="code" href="classarm__compute_1_1_quantization_info.xhtml#af21c7fddee28e9aa0a37c633300db0e0">scale</a>().size();</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <span class="keyword">auto</span> &amp;quant_multipliers = stage_info.<a class="code" href="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info.xhtml#ae5bd6bebbc0c7ebd9e7dbfd47d939c2a">gemmlowp_multipliers</a>;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keyword">auto</span> &amp;quant_shifts = stage_info.<a class="code" href="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info.xhtml#ab269b182588a158cd256f9d4bb2a00dd">gemmlowp_shifts</a>;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; quant_multipliers.resize(size);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; quant_shifts.resize(size);</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> &amp;w_scales = wq_info.<a class="code" href="classarm__compute_1_1_quantization_info.xhtml#af21c7fddee28e9aa0a37c633300db0e0">scale</a>();</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keyword">const</span> <span class="keywordtype">float</span> i_scale = iq_info.<a class="code" href="classarm__compute_1_1_quantization_info.xhtml#af21c7fddee28e9aa0a37c633300db0e0">scale</a>().at(0);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keyword">const</span> <span class="keywordtype">float</span> o_scale = oq_info.<a class="code" href="classarm__compute_1_1_quantization_info.xhtml#af21c7fddee28e9aa0a37c633300db0e0">scale</a>().at(0);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; size; ++i)</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; {</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keyword">const</span> <span class="keywordtype">float</span> multiplier = i_scale * w_scales[i] / o_scale;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; int32_t quant_multiplier = 0;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; int32_t quant_shift = 0;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <a class="code" href="_error_8h.xhtml#a8a1e1c105f0bdaf37db408c7cfcb77a4">ARM_COMPUTE_RETURN_ON_ERROR</a>(<a class="code" href="namespacearm__compute_1_1quantization.xhtml#a63fdf412c27b0151bd4495c64cc112da">calculate_quantized_multiplier</a>(multiplier, &amp;quant_multiplier, &amp;quant_shift));</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; quant_multipliers[i] = quant_multiplier;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; quant_shifts[i] = quant_shift;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; }</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="comment">// Legacy part</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; stage_info.<a class="code" href="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info.xhtml#a3f0613aeb69c326e7d8ffb34b44fae94">gemmlowp_shift</a> = quant_shifts[0];</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; stage_info.<a class="code" href="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info.xhtml#a1cfb92f1c287bf099c3fca0ef0391a2b">gemmlowp_multiplier</a> = quant_multipliers[0];</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classarm__compute_1_1_status.xhtml">Status</a>{};</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160;}</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;</div><div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1quantization.xhtml#ab8860c9932b57a5066c460ea310e1bc4"> 146</a></span>&#160;std::pair&lt;int, int&gt; <a class="code" href="namespacearm__compute_1_1quantization.xhtml#ab8860c9932b57a5066c460ea310e1bc4">get_min_max_values_from_quantized_data_type</a>(<a class="code" href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6">DataType</a> <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a5f5b6c4337eac9e2e0046ca2304d80dc">data_type</a>)</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;{</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="keywordtype">int</span> min_quant_val = 0;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keywordtype">int</span> max_quant_val = 0;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordflow">switch</span>(<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a5f5b6c4337eac9e2e0046ca2304d80dc">data_type</a>)</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; {</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="keywordflow">case</span> <a class="code" href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6af14462d71aa842202c3e4b272c7ec924">DataType::QASYMM8</a>:</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; min_quant_val = std::numeric_limits&lt;uint8_t&gt;::min();</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; max_quant_val = std::numeric_limits&lt;uint8_t&gt;::max();</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordflow">case</span> <a class="code" href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a5f007421a4becd11c0666c2058b0b36c">DataType::QSYMM8</a>:</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordflow">case</span> <a class="code" href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a329f5d0c4b0c80e3474951d2c4435dd9">DataType::QASYMM8_SIGNED</a>:</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; min_quant_val = std::numeric_limits&lt;int8_t&gt;::min();</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; max_quant_val = std::numeric_limits&lt;int8_t&gt;::max();</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keywordflow">case</span> <a class="code" href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a3b989c6b5398b3b9538ad103a324205e">DataType::QASYMM16</a>:</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; min_quant_val = std::numeric_limits&lt;uint16_t&gt;::min();</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; max_quant_val = std::numeric_limits&lt;uint16_t&gt;::max();</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keywordflow">case</span> <a class="code" href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a3ca8a4ea8f992df3b462bc7b24d097c6">DataType::QSYMM16</a>:</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; min_quant_val = std::numeric_limits&lt;int16_t&gt;::min();</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; max_quant_val = std::numeric_limits&lt;int16_t&gt;::max();</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="keywordflow">default</span>:</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <a class="code" href="_error_8h.xhtml#a7cf8d8b669b8f7b05680230be30d60f4">ARM_COMPUTE_ERROR</a>(<span class="stringliteral">&quot;Unsupported data type&quot;</span>);</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; }</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="keywordflow">return</span> std::make_pair(min_quant_val, max_quant_val);</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;}</div><div class="line"><a name="l00174"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1quantization.xhtml#a9e8fecf2dd5d28f1f277d8636be144a5"> 174</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacearm__compute_1_1quantization.xhtml#a9e8fecf2dd5d28f1f277d8636be144a5">compute_quantized_multipliers_and_shifts</a>(<span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_i_tensor_info.xhtml">ITensorInfo</a> *<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a8fcf2ddd9a1d58b1b280f5c0aed71845">input</a>,</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_i_tensor_info.xhtml">ITensorInfo</a> *<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a64a08a9fec5aeee8650e7182b6d171d0">weights</a>,</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_i_tensor_info.xhtml">ITensorInfo</a> *output,</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> idx_ofms,</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; int32_t *output_multipliers_ptr,</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; int32_t *output_shifts_ptr)</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160;{</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> num_filters = <a class="code" href="namespacearm__compute.xhtml#a84437d80241f6a31e1a07c231ee8e3ac">is_data_type_quantized_per_channel</a>(<a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a64a08a9fec5aeee8650e7182b6d171d0">weights</a>-&gt;data_type()) ? <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a64a08a9fec5aeee8650e7182b6d171d0">weights</a>-&gt;dimension(idx_ofms) : 1;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="keyword">const</span> <a class="code" href="structarm__compute_1_1_uniform_quantization_info.xhtml">UniformQuantizationInfo</a> iq_info = <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a8fcf2ddd9a1d58b1b280f5c0aed71845">input</a>-&gt;quantization_info().uniform();</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="keyword">const</span> <a class="code" href="classarm__compute_1_1_quantization_info.xhtml">QuantizationInfo</a> wq_info = <a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#a64a08a9fec5aeee8650e7182b6d171d0">weights</a>-&gt;quantization_info();</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keyword">const</span> <a class="code" href="structarm__compute_1_1_uniform_quantization_info.xhtml">UniformQuantizationInfo</a> oq_info = output-&gt;<a class="code" href="classarm__compute_1_1_i_tensor_info.xhtml#a3f3e1a3200223e6a304a533b1016e749">quantization_info</a>().<a class="code" href="classarm__compute_1_1_quantization_info.xhtml#a706fc156bcd4c45441bcaad05884b57d">uniform</a>();</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; num_filters; ++i)</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; {</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; int32_t output_multiplier = 0;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; int32_t output_shift = 0;</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; <span class="keyword">const</span> <span class="keywordtype">float</span> multiplier = iq_info.<a class="code" href="structarm__compute_1_1_uniform_quantization_info.xhtml#a1d28dec57cce925ad92342891bd71e7c">scale</a> * wq_info.<a class="code" href="classarm__compute_1_1_quantization_info.xhtml#af21c7fddee28e9aa0a37c633300db0e0">scale</a>()[i] / oq_info.<a class="code" href="structarm__compute_1_1_uniform_quantization_info.xhtml#a1d28dec57cce925ad92342891bd71e7c">scale</a>;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; <a class="code" href="namespacearm__compute_1_1quantization.xhtml#a63fdf412c27b0151bd4495c64cc112da">calculate_quantized_multiplier</a>(multiplier, &amp;output_multiplier, &amp;output_shift);</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; output_multipliers_ptr[i] = output_multiplier;</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; output_shifts_ptr[i] = output_shift;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; }</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;}</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;} <span class="comment">// quantization</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;} <span class="comment">// arm_compute</span></div><div class="ttc" id="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info_xhtml_a1cfb92f1c287bf099c3fca0ef0391a2b"><div class="ttname"><a href="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info.xhtml#a1cfb92f1c287bf099c3fca0ef0391a2b">arm_compute::GEMMLowpOutputStageInfo::gemmlowp_multiplier</a></div><div class="ttdeci">int32_t gemmlowp_multiplier</div><div class="ttdoc">GEMMLowp output stage multiplier used for quantizing to QASYMM8.</div><div class="ttdef"><b>Definition:</b> <a href="arm__compute_2core_2_types_8h_source.xhtml#l01948">Types.h:1948</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_a979a54caef6e77ce0259e427136847e8"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#a979a54caef6e77ce0259e427136847e8">arm_compute::test::validation::shift</a></div><div class="ttdeci">shift</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_depth_convert_layer_8cpp_source.xhtml#l00155">DepthConvertLayer.cpp:155</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_ad8ed01ff3ff33333d8e19db4d2818bb6a3ca8a4ea8f992df3b462bc7b24d097c6"><div class="ttname"><a href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a3ca8a4ea8f992df3b462bc7b24d097c6">arm_compute::DataType::QSYMM16</a></div><div class="ttdoc">quantized, symmetric fixed-point 16-bit number</div></div>
<div class="ttc" id="namespacearm__compute_1_1quantization_xhtml_a9e8fecf2dd5d28f1f277d8636be144a5"><div class="ttname"><a href="namespacearm__compute_1_1quantization.xhtml#a9e8fecf2dd5d28f1f277d8636be144a5">arm_compute::quantization::compute_quantized_multipliers_and_shifts</a></div><div class="ttdeci">void compute_quantized_multipliers_and_shifts(const ITensorInfo *input, const ITensorInfo *weights, const ITensorInfo *output, unsigned int idx_ofms, int32_t *output_multipliers_ptr, int32_t *output_shifts_ptr)</div><div class="ttdoc">Compute quantized per-channel multipliers and shifts.</div><div class="ttdef"><b>Definition:</b> <a href="_asymm_helpers_8cpp_source.xhtml#l00174">AsymmHelpers.cpp:174</a></div></div>
<div class="ttc" id="_error_8h_xhtml_a7cf8d8b669b8f7b05680230be30d60f4"><div class="ttname"><a href="_error_8h.xhtml#a7cf8d8b669b8f7b05680230be30d60f4">ARM_COMPUTE_ERROR</a></div><div class="ttdeci">#define ARM_COMPUTE_ERROR(msg)</div><div class="ttdoc">Print the given message then throw an std::runtime_error.</div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00352">Error.h:352</a></div></div>
<div class="ttc" id="_error_8h_xhtml_a8a1e1c105f0bdaf37db408c7cfcb77a4"><div class="ttname"><a href="_error_8h.xhtml#a8a1e1c105f0bdaf37db408c7cfcb77a4">ARM_COMPUTE_RETURN_ON_ERROR</a></div><div class="ttdeci">#define ARM_COMPUTE_RETURN_ON_ERROR(status)</div><div class="ttdoc">Checks if a status contains an error and returns it.</div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00204">Error.h:204</a></div></div>
<div class="ttc" id="classarm__compute_1_1_i_tensor_info_xhtml"><div class="ttname"><a href="classarm__compute_1_1_i_tensor_info.xhtml">arm_compute::ITensorInfo</a></div><div class="ttdoc">Store the tensor's metadata.</div><div class="ttdef"><b>Definition:</b> <a href="_i_tensor_info_8h_source.xhtml#l00040">ITensorInfo.h:40</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_ad8ed01ff3ff33333d8e19db4d2818bb6a3b989c6b5398b3b9538ad103a324205e"><div class="ttname"><a href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a3b989c6b5398b3b9538ad103a324205e">arm_compute::DataType::QASYMM16</a></div><div class="ttdoc">quantized, asymmetric fixed-point 16-bit number</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="classarm__compute_1_1_status_xhtml"><div class="ttname"><a href="classarm__compute_1_1_status.xhtml">arm_compute::Status</a></div><div class="ttdoc">Status class.</div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00052">Error.h:52</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1quantization_xhtml_a34f24bcb4a4017178a0fcfb2f6e2c954"><div class="ttname"><a href="namespacearm__compute_1_1quantization.xhtml#a34f24bcb4a4017178a0fcfb2f6e2c954">arm_compute::quantization::calculate_quantized_multiplier_greater_than_one</a></div><div class="ttdeci">Status calculate_quantized_multiplier_greater_than_one(float multiplier, int32_t *quantized_multiplier, int32_t *left_shift)</div><div class="ttdoc">Calculate quantized representation of multiplier having value greater than one.</div><div class="ttdef"><b>Definition:</b> <a href="_asymm_helpers_8cpp_source.xhtml#l00084">AsymmHelpers.cpp:84</a></div></div>
<div class="ttc" id="_error_8h_xhtml_a206d6e247e0957ac3dee45d27756fc25"><div class="ttname"><a href="_error_8h.xhtml#a206d6e247e0957ac3dee45d27756fc25">ARM_COMPUTE_RETURN_ERROR_ON</a></div><div class="ttdeci">#define ARM_COMPUTE_RETURN_ERROR_ON(cond)</div><div class="ttdoc">If the condition is true, an error is returned.</div><div class="ttdef"><b>Definition:</b> <a href="_error_8h_source.xhtml#l00296">Error.h:296</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_1_1test_1_1validation_xhtml_a8fcf2ddd9a1d58b1b280f5c0aed71845"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#a8fcf2ddd9a1d58b1b280f5c0aed71845">arm_compute::test::validation::input</a></div><div class="ttdeci">auto input</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_l_s_t_m_layer_quantized_8cpp_source.xhtml#l00487">LSTMLayerQuantized.cpp:487</a></div></div>
<div class="ttc" id="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info_xhtml_ab269b182588a158cd256f9d4bb2a00dd"><div class="ttname"><a href="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info.xhtml#ab269b182588a158cd256f9d4bb2a00dd">arm_compute::GEMMLowpOutputStageInfo::gemmlowp_shifts</a></div><div class="ttdeci">std::vector&lt; int32_t &gt; gemmlowp_shifts</div><div class="ttdoc">GEMMLowp output stage multiplier used for quantizing to QASYMM8.</div><div class="ttdef"><b>Definition:</b> <a href="arm__compute_2core_2_types_8h_source.xhtml#l01953">Types.h:1953</a></div></div>
<div class="ttc" id="classarm__compute_1_1_quantization_info_xhtml"><div class="ttname"><a href="classarm__compute_1_1_quantization_info.xhtml">arm_compute::QuantizationInfo</a></div><div class="ttdoc">Quantization information.</div><div class="ttdef"><b>Definition:</b> <a href="_quantization_info_8h_source.xhtml#l00069">QuantizationInfo.h:69</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1quantization_xhtml_ab8860c9932b57a5066c460ea310e1bc4"><div class="ttname"><a href="namespacearm__compute_1_1quantization.xhtml#ab8860c9932b57a5066c460ea310e1bc4">arm_compute::quantization::get_min_max_values_from_quantized_data_type</a></div><div class="ttdeci">std::pair&lt; int, int &gt; get_min_max_values_from_quantized_data_type(DataType data_type)</div><div class="ttdoc">Get minimum and maximum values for the input quantized data type.</div><div class="ttdef"><b>Definition:</b> <a href="_asymm_helpers_8cpp_source.xhtml#l00146">AsymmHelpers.cpp:146</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_a84437d80241f6a31e1a07c231ee8e3ac"><div class="ttname"><a href="namespacearm__compute.xhtml#a84437d80241f6a31e1a07c231ee8e3ac">arm_compute::is_data_type_quantized_per_channel</a></div><div class="ttdeci">bool is_data_type_quantized_per_channel(DataType dt)</div><div class="ttdoc">Check if a given data type is of per channel type.</div><div class="ttdef"><b>Definition:</b> <a href="arm__compute_2core_2_utils_8h_source.xhtml#l01194">Utils.h:1194</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1quantization_xhtml_a7c9cea57b791676637d2fda3637d340e"><div class="ttname"><a href="namespacearm__compute_1_1quantization.xhtml#a7c9cea57b791676637d2fda3637d340e">arm_compute::quantization::calculate_quantized_multipliers</a></div><div class="ttdeci">Status calculate_quantized_multipliers(const QuantizationInfo &amp;iq_info, const QuantizationInfo &amp;wq_info, const QuantizationInfo &amp;oq_info, GEMMLowpOutputStageInfo &amp;stage_info)</div><div class="ttdoc">Calculate quantized representation of per-channel multipliers.</div><div class="ttdef"><b>Definition:</b> <a href="_asymm_helpers_8cpp_source.xhtml#l00109">AsymmHelpers.cpp:109</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_ad8ed01ff3ff33333d8e19db4d2818bb6af14462d71aa842202c3e4b272c7ec924"><div class="ttname"><a href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6af14462d71aa842202c3e4b272c7ec924">arm_compute::DataType::QASYMM8</a></div><div class="ttdoc">quantized, asymmetric fixed-point 8-bit number unsigned</div></div>
<div class="ttc" id="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info_xhtml_ae5bd6bebbc0c7ebd9e7dbfd47d939c2a"><div class="ttname"><a href="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info.xhtml#ae5bd6bebbc0c7ebd9e7dbfd47d939c2a">arm_compute::GEMMLowpOutputStageInfo::gemmlowp_multipliers</a></div><div class="ttdeci">std::vector&lt; int32_t &gt; gemmlowp_multipliers</div><div class="ttdoc">GEMMLowp output stage multiplier used for quantizing to QASYMM8.</div><div class="ttdef"><b>Definition:</b> <a href="arm__compute_2core_2_types_8h_source.xhtml#l01952">Types.h:1952</a></div></div>
<div class="ttc" id="classarm__compute_1_1_quantization_info_xhtml_a706fc156bcd4c45441bcaad05884b57d"><div class="ttname"><a href="classarm__compute_1_1_quantization_info.xhtml#a706fc156bcd4c45441bcaad05884b57d">arm_compute::QuantizationInfo::uniform</a></div><div class="ttdeci">UniformQuantizationInfo uniform() const</div><div class="ttdoc">Return per layer quantization info.</div><div class="ttdef"><b>Definition:</b> <a href="_quantization_info_8h_source.xhtml#l00148">QuantizationInfo.h:148</a></div></div>
<div class="ttc" id="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info_xhtml"><div class="ttname"><a href="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info.xhtml">arm_compute::GEMMLowpOutputStageInfo</a></div><div class="ttdoc">GEMMLowp output stage info.</div><div class="ttdef"><b>Definition:</b> <a href="arm__compute_2core_2_types_8h_source.xhtml#l01944">Types.h:1944</a></div></div>
<div class="ttc" id="classarm__compute_1_1_quantization_info_xhtml_af21c7fddee28e9aa0a37c633300db0e0"><div class="ttname"><a href="classarm__compute_1_1_quantization_info.xhtml#af21c7fddee28e9aa0a37c633300db0e0">arm_compute::QuantizationInfo::scale</a></div><div class="ttdeci">const std::vector&lt; float &gt; &amp; scale() const</div><div class="ttdoc">Scale vector accessor.</div><div class="ttdef"><b>Definition:</b> <a href="_quantization_info_8h_source.xhtml#l00124">QuantizationInfo.h:124</a></div></div>
<div class="ttc" id="classarm__compute_1_1_i_tensor_info_xhtml_a3f3e1a3200223e6a304a533b1016e749"><div class="ttname"><a href="classarm__compute_1_1_i_tensor_info.xhtml#a3f3e1a3200223e6a304a533b1016e749">arm_compute::ITensorInfo::quantization_info</a></div><div class="ttdeci">virtual QuantizationInfo quantization_info() const =0</div><div class="ttdoc">Get the quantization settings (scale and offset) of the tensor.</div></div>
<div class="ttc" id="namespacearm__compute_xhtml_ad8ed01ff3ff33333d8e19db4d2818bb6a5f007421a4becd11c0666c2058b0b36c"><div class="ttname"><a href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a5f007421a4becd11c0666c2058b0b36c">arm_compute::DataType::QSYMM8</a></div><div class="ttdoc">quantized, symmetric fixed-point 8-bit number</div></div>
<div class="ttc" id="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info_xhtml_a3f0613aeb69c326e7d8ffb34b44fae94"><div class="ttname"><a href="structarm__compute_1_1_g_e_m_m_lowp_output_stage_info.xhtml#a3f0613aeb69c326e7d8ffb34b44fae94">arm_compute::GEMMLowpOutputStageInfo::gemmlowp_shift</a></div><div class="ttdeci">int32_t gemmlowp_shift</div><div class="ttdoc">GEMMLowp output stage shift used for quantizing to uint8.</div><div class="ttdef"><b>Definition:</b> <a href="arm__compute_2core_2_types_8h_source.xhtml#l01949">Types.h:1949</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1quantization_xhtml_ab153bd5bebd2a695c5d2c79801d0abec"><div class="ttname"><a href="namespacearm__compute_1_1quantization.xhtml#ab153bd5bebd2a695c5d2c79801d0abec">arm_compute::quantization::fixed_point_one_Q0</a></div><div class="ttdeci">constexpr int64_t fixed_point_one_Q0</div><div class="ttdef"><b>Definition:</b> <a href="_asymm_helpers_8cpp_source.xhtml#l00035">AsymmHelpers.cpp:35</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1quantization_xhtml_acd91a85bed01075d0b9384f065f94039"><div class="ttname"><a href="namespacearm__compute_1_1quantization.xhtml#acd91a85bed01075d0b9384f065f94039">arm_compute::quantization::calculate_quantized_multiplier_less_than_one</a></div><div class="ttdeci">Status calculate_quantized_multiplier_less_than_one(float multiplier, int32_t *quant_multiplier, int32_t *right_shift)</div><div class="ttdoc">Calculate quantized representation of multiplier with value less than one.</div><div class="ttdef"><b>Definition:</b> <a href="_asymm_helpers_8cpp_source.xhtml#l00052">AsymmHelpers.cpp:52</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1support_1_1cpp11_xhtml_ab71c35ca207b916a9f8b0336ab88484e"><div class="ttname"><a href="namespacearm__compute_1_1support_1_1cpp11.xhtml#ab71c35ca207b916a9f8b0336ab88484e">arm_compute::support::cpp11::round</a></div><div class="ttdeci">T round(T value)</div><div class="ttdoc">Round floating-point value with half value rounding away from zero.</div><div class="ttdef"><b>Definition:</b> <a href="_toolchain_support_8h_source.xhtml#l00317">ToolchainSupport.h:317</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1quantization_xhtml_a63fdf412c27b0151bd4495c64cc112da"><div class="ttname"><a href="namespacearm__compute_1_1quantization.xhtml#a63fdf412c27b0151bd4495c64cc112da">arm_compute::quantization::calculate_quantized_multiplier</a></div><div class="ttdeci">Status calculate_quantized_multiplier(float multiplier, int32_t *quant_multiplier, int32_t *shift)</div><div class="ttdoc">Calculate quantized representation of multiplier.</div><div class="ttdef"><b>Definition:</b> <a href="_asymm_helpers_8cpp_source.xhtml#l00038">AsymmHelpers.cpp:38</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_a64a08a9fec5aeee8650e7182b6d171d0"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#a64a08a9fec5aeee8650e7182b6d171d0">arm_compute::test::validation::weights</a></div><div class="ttdeci">CLTensor weights</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_convolution_layer_8cpp_source.xhtml#l00188">ConvolutionLayer.cpp:188</a></div></div>
<div class="ttc" id="arm__compute_2core_2_helpers_8h_xhtml"><div class="ttname"><a href="arm__compute_2core_2_helpers_8h.xhtml">Helpers.h</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_ad8ed01ff3ff33333d8e19db4d2818bb6a329f5d0c4b0c80e3474951d2c4435dd9"><div class="ttname"><a href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6a329f5d0c4b0c80e3474951d2c4435dd9">arm_compute::DataType::QASYMM8_SIGNED</a></div><div class="ttdoc">quantized, asymmetric fixed-point 8-bit number signed</div></div>
<div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_a5f5b6c4337eac9e2e0046ca2304d80dc"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#a5f5b6c4337eac9e2e0046ca2304d80dc">arm_compute::test::validation::data_type</a></div><div class="ttdeci">data_type</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_arithmetic_addition_8cpp_source.xhtml#l00138">ArithmeticAddition.cpp:138</a></div></div>
<div class="ttc" id="_asymm_helpers_8h_xhtml"><div class="ttname"><a href="_asymm_helpers_8h.xhtml">AsymmHelpers.h</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml_ad8ed01ff3ff33333d8e19db4d2818bb6"><div class="ttname"><a href="namespacearm__compute.xhtml#ad8ed01ff3ff33333d8e19db4d2818bb6">arm_compute::DataType</a></div><div class="ttdeci">DataType</div><div class="ttdoc">Available data types.</div><div class="ttdef"><b>Definition:</b> <a href="arm__compute_2core_2_types_8h_source.xhtml#l00075">Types.h:75</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1quantization_xhtml_a552dc3787d7ea1675f3e4e8993501d58"><div class="ttname"><a href="namespacearm__compute_1_1quantization.xhtml#a552dc3787d7ea1675f3e4e8993501d58">arm_compute::quantization::epsilon</a></div><div class="ttdeci">constexpr float epsilon</div><div class="ttdef"><b>Definition:</b> <a href="_asymm_helpers_8cpp_source.xhtml#l00036">AsymmHelpers.cpp:36</a></div></div>
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