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<li class="navelem"><a class="el" href="dir_8cab8f464681f7cc51cee77e79a434cd.html">3rdparty</a></li><li class="navelem"><a class="el" href="dir_3e48ced36faa4eaa1b41f6d960bf0edb.html">mshadow</a></li><li class="navelem"><a class="el" href="dir_00b035bb2ad81894e6ad291054ea5f82.html">mshadow</a></li> </ul>
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<a href="bfloat_8h.html">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"> * Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * distributed with this work for additional information</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * &quot;License&quot;); you may not use this file except in compliance</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * with the License. You may obtain a copy of the License at</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * software distributed under the License is distributed on an</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> * KIND, either express or implied. See the License for the</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> * specific language governing permissions and limitations</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment"> * under the License.</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#ifndef MSHADOW_BFLOAT_H_</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#define MSHADOW_BFLOAT_H_</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html">./base.h</a>&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</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="namespacemshadow.html">mshadow</a> {</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="comment">/* \brief name space for host/device portable bfloats */</span></div><div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="namespacemshadow_1_1bfloat.html"> 33</a></span>&#160;<span class="keyword">namespace </span>bfloat {</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="bfloat_8h.html#af49a3d746bfd937f41d012e8b2cc86bc"> 35</a></span>&#160;<span class="preprocessor">#define MSHADOW_BF16_OPERATOR_TYPE(RTYPE, ITYPE, OP) \</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="preprocessor"> MSHADOW_XINLINE RTYPE operator OP (ITYPE a, bf16_t b) { \</span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="preprocessor"> return RTYPE(a OP float(b)); </span><span class="comment">/* NOLINT(*) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="preprocessor"> } \</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="preprocessor"> MSHADOW_XINLINE RTYPE operator OP (bf16_t a, ITYPE b) { \</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;<span class="preprocessor"> return RTYPE(float(a) OP b); </span><span class="comment">/* NOLINT(*) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;<span class="preprocessor"> }</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="bfloat_8h.html#a3e06c066528729936c79459e40137073"> 43</a></span>&#160;<span class="preprocessor">#define MSHADOW_BF16_OPERATOR(RTYPE, OP) \</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="preprocessor"> MSHADOW_XINLINE RTYPE operator OP (bf16_t a, bf16_t b) { \</span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;<span class="preprocessor"> return RTYPE(static_cast&lt;float&gt;(a) OP float(b)); </span><span class="comment">/* NOLINT(*) */</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;<span class="preprocessor"> } \</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<span class="preprocessor"> MSHADOW_BF16_OPERATOR_TYPE(float, float, OP) \</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="preprocessor"> MSHADOW_BF16_OPERATOR_TYPE(double, double, OP) \</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="preprocessor"> MSHADOW_BF16_OPERATOR_TYPE(float, int8_t, OP) \</span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160;<span class="preprocessor"> MSHADOW_BF16_OPERATOR_TYPE(float, uint8_t, OP) \</span></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;<span class="preprocessor"> MSHADOW_BF16_OPERATOR_TYPE(float, int32_t, OP) \</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;<span class="preprocessor"> MSHADOW_BF16_OPERATOR_TYPE(float, uint32_t, OP) \</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;<span class="preprocessor"> MSHADOW_BF16_OPERATOR_TYPE(float, int64_t, OP) \</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="preprocessor"> MSHADOW_BF16_OPERATOR_TYPE(float, uint64_t, OP)</span></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"><a class="line" href="bfloat_8h.html#a490630e7073dde324b3c2d34f6bd5b2a"> 56</a></span>&#160;<span class="preprocessor">#define MSHADOW_BF16_ASSIGNOP(AOP, OP) \</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;<span class="preprocessor"> template&lt;typename T&gt; \</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;<span class="preprocessor"> MSHADOW_XINLINE bf16_t operator AOP (const T&amp; a) { \</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;<span class="preprocessor"> return *this = bf16_t(float(*this) OP float(a)); </span><span class="comment">/* NOLINT(*)*/</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;<span class="preprocessor"> } \</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;<span class="preprocessor"> template&lt;typename T&gt; \</span></div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;<span class="preprocessor"> MSHADOW_XINLINE bf16_t operator AOP (const volatile T&amp; a) volatile { \</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;<span class="preprocessor"> return *this = bf16_t(float(*this) OP float(a)); </span><span class="comment">/* NOLINT(*)*/</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;<span class="preprocessor"> }</span></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"><a class="line" href="bfloat_8h.html#aebaf8e8a04017fc6fcb987956dddb8fc"> 66</a></span>&#160;<span class="preprocessor">#define MSHADOW_BF16_CONVERSIONOP(T) \</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;<span class="preprocessor"> MSHADOW_XINLINE operator T() const { \</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;<span class="preprocessor"> return T(BF16ToFloat(bf16_)); </span><span class="comment">/* NOLINT(*)*/</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160;<span class="preprocessor"> } \</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;<span class="preprocessor"> MSHADOW_XINLINE operator T() const volatile { \</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;<span class="preprocessor"> return T(BF16ToFloat(bf16_)); </span><span class="comment">/* NOLINT(*)*/</span><span class="preprocessor"> \</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160;<span class="preprocessor"> }</span></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"><a class="line" href="namespacemshadow_1_1bfloat.html#a30cf4b49f675c62509c5a9eb802da5ff"> 74</a></span>&#160;<span class="keyword">class </span><a class="code" href="namespacemshadow_1_1bfloat.html#a30cf4b49f675c62509c5a9eb802da5ff">MSHADOW_ALIGNED</a>(2) bf16_t {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; uint16_t bf16_;</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;<span class="keyword">static</span> <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> bf16_t Binary(uint16_t value) {</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; bf16_t res;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; res.bf16_ = value;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordflow">return</span> res;</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"> 84</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> bf16_t() {}</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> bf16_t(<span class="keyword">const</span> <span class="keywordtype">float</span>&amp; value) { constructor(value); }</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> <span class="keyword">explicit</span> bf16_t(<span class="keyword">const</span> <span class="keywordtype">double</span>&amp; value) { constructor(value); }</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> <span class="keyword">explicit</span> bf16_t(<span class="keyword">const</span> int8_t&amp; value) { constructor(value); }</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> <span class="keyword">explicit</span> bf16_t(<span class="keyword">const</span> uint8_t&amp; value) { constructor(value); }</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> <span class="keyword">explicit</span> bf16_t(<span class="keyword">const</span> int32_t&amp; value) { constructor(value); }</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> <span class="keyword">explicit</span> bf16_t(<span class="keyword">const</span> uint32_t&amp; value) { constructor(value); }</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> <span class="keyword">explicit</span> bf16_t(<span class="keyword">const</span> int64_t&amp; value) { constructor(value); }</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> <span class="keyword">explicit</span> bf16_t(<span class="keyword">const</span> uint64_t&amp; value) { constructor(value); }</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <a class="code" href="bfloat_8h.html#aebaf8e8a04017fc6fcb987956dddb8fc">MSHADOW_BF16_CONVERSIONOP</a>(<span class="keywordtype">float</span>)</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <a class="code" href="bfloat_8h.html#a490630e7073dde324b3c2d34f6bd5b2a">MSHADOW_BF16_ASSIGNOP</a>(+=, +)</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <a class="code" href="bfloat_8h.html#a490630e7073dde324b3c2d34f6bd5b2a">MSHADOW_BF16_ASSIGNOP</a>(-=, -)</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <a class="code" href="bfloat_8h.html#a490630e7073dde324b3c2d34f6bd5b2a">MSHADOW_BF16_ASSIGNOP</a>(*=, *)</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <a class="code" href="bfloat_8h.html#a490630e7073dde324b3c2d34f6bd5b2a">MSHADOW_BF16_ASSIGNOP</a>(/=, /)</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="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> bf16_t <a class="code" href="namespacemshadow_1_1expr.html#a36b73d8a667f8a65481742df3603c820">operator+</a>() {</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; }</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; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> bf16_t <a class="code" href="namespacemshadow_1_1expr.html#a813fe7f401228b0c168153333b582fd7">operator-</a>() {</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keywordflow">return</span> bf16_t(-<span class="keywordtype">float</span>(*<span class="keyword">this</span>)); <span class="comment">// NOLINT(*)</span></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"> 109</span>&#160;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> bf16_t operator=(<span class="keyword">const</span> bf16_t&amp; a) {</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; bf16_ = a.bf16_;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keywordflow">return</span> a;</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;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> bf16_t operator=(<span class="keyword">const</span> T&amp; a) {</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span> = bf16_t(a); <span class="comment">/* NOLINT(*)*/</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; }</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; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> bf16_t operator=(<span class="keyword">const</span> bf16_t&amp; a)<span class="keyword"> volatile </span>{</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; bf16_ = a.bf16_;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keywordflow">return</span> a;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; }</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">template</span>&lt;<span class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> bf16_t operator=(<span class="keyword">const</span> T&amp; a)<span class="keyword"> volatile </span>{</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span> = bf16_t(a); <span class="comment">/* NOLINT(*)*/</span></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;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keyword">union </span>Bits {</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="keywordtype">float</span> f;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; int32_t si;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; uint32_t ui;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; };</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> uint16_t FloatToBF16(<span class="keyword">const</span> <span class="keywordtype">float</span>&amp; value)<span class="keyword"> const </span>{</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast&lt;</span><span class="keyword">const </span>uint16_t*<span class="keyword">&gt;</span>(&amp;value)[1];</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; }</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <span class="comment">// Same as above routine, except for addition of volatile keyword</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> uint16_t FloatToBF16(<span class="keyword">const</span> <span class="keyword">volatile</span> <span class="keywordtype">float</span>&amp; value)<span class="keyword"> const volatile </span>{ <span class="comment">// NOLINT (*)</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast&lt;</span><span class="keyword">const </span><span class="keyword">volatile </span>uint16_t*<span class="keyword">&gt;</span>(&amp;value)[1];</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"> 146</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> <span class="keywordtype">float</span> BF16ToFloat(<span class="keyword">const</span> uint16_t&amp; value)<span class="keyword"> const </span>{</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <span class="keywordtype">float</span> ret = 0.f;</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="keyword">reinterpret_cast&lt;</span>uint16_t*<span class="keyword">&gt;</span>(&amp;ret)[1] = value;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; }</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; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> <span class="keywordtype">float</span> BF16ToFloat(<span class="keyword">const</span> <span class="keyword">volatile</span> uint16_t&amp; value)<span class="keyword"> const volatile </span>{ <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keywordtype">float</span> ret = 0.f;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keyword">reinterpret_cast&lt;</span>uint16_t*<span class="keyword">&gt;</span>(&amp;ret)[1] = value;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keywordflow">return</span> ret;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; }</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <a class="code" href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a> <span class="keywordtype">void</span> constructor(<span class="keyword">const</span> T&amp; value) {</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; bf16_ = FloatToBF16(<span class="keywordtype">float</span>(value)); <span class="comment">// NOLINT(*)</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; }</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;};</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;<a class="code" href="bfloat_8h.html#a3e06c066528729936c79459e40137073">MSHADOW_BF16_OPERATOR</a>(bf16_t, +)</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160;<a class="code" href="bfloat_8h.html#a3e06c066528729936c79459e40137073">MSHADOW_BF16_OPERATOR</a>(bf16_t, -)</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160;<a class="code" href="bfloat_8h.html#a3e06c066528729936c79459e40137073">MSHADOW_BF16_OPERATOR</a>(bf16_t, *)</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160;<a class="code" href="bfloat_8h.html#a3e06c066528729936c79459e40137073">MSHADOW_BF16_OPERATOR</a>(bf16_t, /)</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160;<a class="code" href="bfloat_8h.html#a3e06c066528729936c79459e40137073">MSHADOW_BF16_OPERATOR</a>(<span class="keywordtype">bool</span>, &gt;)</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;<a class="code" href="bfloat_8h.html#a3e06c066528729936c79459e40137073">MSHADOW_BF16_OPERATOR</a>(<span class="keywordtype">bool</span>, &lt;)</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160;<a class="code" href="bfloat_8h.html#a3e06c066528729936c79459e40137073">MSHADOW_BF16_OPERATOR</a>(<span class="keywordtype">bool</span>, &gt;=)</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160;<a class="code" href="bfloat_8h.html#a3e06c066528729936c79459e40137073">MSHADOW_BF16_OPERATOR</a>(<span class="keywordtype">bool</span>, &lt;=)</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"><a class="line" href="bfloat_8h.html#ab31d5d1e2e21e0fc5dd6f40e276fdd43"> 181</a></span>&#160;<span class="preprocessor">#define MSHADOW_BF16_MIN mshadow::bfloat::bf16_t::Binary(0xFF7F);</span></div><div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="bfloat_8h.html#a3d5d63ecb7104078d465a0074f9d9059"> 182</a></span>&#160;<span class="preprocessor">#define MSHADOW_BF16_MAX mshadow::bfloat::bf16_t::Binary(0x7F7F);</span></div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160;} <span class="comment">// namespace bfloat</span></div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160;} <span class="comment">// namespace mshadow</span></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160;<span class="preprocessor">#endif // MSHADOW_BFLOAT_H_</span></div><div class="ttc" id="namespacemshadow_1_1expr_html_a813fe7f401228b0c168153333b582fd7"><div class="ttname"><a href="namespacemshadow_1_1expr.html#a813fe7f401228b0c168153333b582fd7">mshadow::expr::operator-</a></div><div class="ttdeci">BinaryMapExp&lt; op::minus, TA, ScalarExp&lt; MSHADOW_SCALAR_ &gt;, MSHADOW_SCALAR_,(ta|type::kMapper)&gt; operator-(const Exp&lt; TA, MSHADOW_SCALAR_, ta &gt; &amp;lhs, const ScalarExp&lt; MSHADOW_SCALAR_ &gt; &amp;rhs)</div><div class="ttdoc">operator overload </div><div class="ttdef"><b>Definition:</b> expr_scalar-inl.h:101</div></div>
<div class="ttc" id="namespacemshadow_1_1expr_html_a36b73d8a667f8a65481742df3603c820"><div class="ttname"><a href="namespacemshadow_1_1expr.html#a36b73d8a667f8a65481742df3603c820">mshadow::expr::operator+</a></div><div class="ttdeci">BinaryMapExp&lt; op::plus, TA, ScalarExp&lt; MSHADOW_SCALAR_ &gt;, MSHADOW_SCALAR_,(ta|type::kMapper)&gt; operator+(const Exp&lt; TA, MSHADOW_SCALAR_, ta &gt; &amp;lhs, const ScalarExp&lt; MSHADOW_SCALAR_ &gt; &amp;rhs)</div><div class="ttdoc">operator overload </div><div class="ttdef"><b>Definition:</b> expr_scalar-inl.h:93</div></div>
<div class="ttc" id="bfloat_8h_html_a490630e7073dde324b3c2d34f6bd5b2a"><div class="ttname"><a href="bfloat_8h.html#a490630e7073dde324b3c2d34f6bd5b2a">MSHADOW_BF16_ASSIGNOP</a></div><div class="ttdeci">#define MSHADOW_BF16_ASSIGNOP(AOP, OP)</div><div class="ttdef"><b>Definition:</b> bfloat.h:56</div></div>
<div class="ttc" id="3rdparty_2mshadow_2mshadow_2base_8h_html_af205b8ab4d8733133d590df7d2639d69"><div class="ttname"><a href="3rdparty_2mshadow_2mshadow_2base_8h.html#af205b8ab4d8733133d590df7d2639d69">MSHADOW_XINLINE</a></div><div class="ttdeci">#define MSHADOW_XINLINE</div><div class="ttdef"><b>Definition:</b> base.h:230</div></div>
<div class="ttc" id="bfloat_8h_html_aebaf8e8a04017fc6fcb987956dddb8fc"><div class="ttname"><a href="bfloat_8h.html#aebaf8e8a04017fc6fcb987956dddb8fc">MSHADOW_BF16_CONVERSIONOP</a></div><div class="ttdeci">#define MSHADOW_BF16_CONVERSIONOP(T)</div><div class="ttdef"><b>Definition:</b> bfloat.h:66</div></div>
<div class="ttc" id="bfloat_8h_html_a3e06c066528729936c79459e40137073"><div class="ttname"><a href="bfloat_8h.html#a3e06c066528729936c79459e40137073">MSHADOW_BF16_OPERATOR</a></div><div class="ttdeci">#define MSHADOW_BF16_OPERATOR(RTYPE, OP)</div><div class="ttdef"><b>Definition:</b> bfloat.h:43</div></div>
<div class="ttc" id="namespacemshadow_1_1bfloat_html_a30cf4b49f675c62509c5a9eb802da5ff"><div class="ttname"><a href="namespacemshadow_1_1bfloat.html#a30cf4b49f675c62509c5a9eb802da5ff">mshadow::bfloat::MSHADOW_ALIGNED</a></div><div class="ttdeci">class MSHADOW_ALIGNED(2) bf16_t</div><div class="ttdef"><b>Definition:</b> bfloat.h:74</div></div>
<div class="ttc" id="namespacemshadow_html"><div class="ttname"><a href="namespacemshadow.html">mshadow</a></div><div class="ttdoc">overloaded + operator between half_t and bf16_t </div><div class="ttdef"><b>Definition:</b> base.h:334</div></div>
<div class="ttc" id="3rdparty_2mshadow_2mshadow_2base_8h_html"><div class="ttname"><a href="3rdparty_2mshadow_2mshadow_2base_8h.html">base.h</a></div></div>
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