1 // Auto-generated file. Do not edit!
2 // Template: src/f32-sigmoid/avx512f-p5-scalef.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2020 Google LLC
6 //
7 // This source code is licensed under the BSD-style license found in the
8 // LICENSE file in the root directory of this source tree.
9
10 #include <assert.h>
11
12 #include <immintrin.h>
13
14 #include <xnnpack/common.h>
15 #include <xnnpack/intrinsics-polyfill.h>
16 #include <xnnpack/vunary.h>
17
18
xnn_f32_sigmoid_ukernel__avx512f_rr1_p5_scalef_div_x128(size_t n,const float * x,float * y,const void * params)19 void xnn_f32_sigmoid_ukernel__avx512f_rr1_p5_scalef_div_x128(
20 size_t n,
21 const float* x,
22 float* y,
23 const void* params)
24 {
25 assert(n % sizeof(float) == 0);
26
27 const __m512i vsign_mask = _mm512_set1_epi32(0x80000000);
28 const __m512 vlog2e = _mm512_set1_ps(0x1.715476p+0f);
29 const __m512 vminus_ln2 = _mm512_set1_ps(-0x1.62E43p-1f);
30 const __m512 vc5 = _mm512_set1_ps(0x1.0F9F9Cp-7f);
31 const __m512 vc4 = _mm512_set1_ps(0x1.573A1Ap-5f);
32 const __m512 vc3 = _mm512_set1_ps(0x1.555A80p-3f);
33 const __m512 vc2 = _mm512_set1_ps(0x1.FFFDC6p-2f);
34 const __m512 vc1 = _mm512_set1_ps(0x1.FFFFF6p-1f);
35 const __m512 vone = _mm512_set1_ps(1.0f);
36
37 for (; n >= 128 * sizeof(float); n -= 128 * sizeof(float)) {
38 const __m512 vx0 = _mm512_loadu_ps(x);
39 const __m512 vx1 = _mm512_loadu_ps(x + 16);
40 const __m512 vx2 = _mm512_loadu_ps(x + 32);
41 const __m512 vx3 = _mm512_loadu_ps(x + 48);
42 const __m512 vx4 = _mm512_loadu_ps(x + 64);
43 const __m512 vx5 = _mm512_loadu_ps(x + 80);
44 const __m512 vx6 = _mm512_loadu_ps(x + 96);
45 const __m512 vx7 = _mm512_loadu_ps(x + 112);
46 x += 128;
47
48 const __m512 vz0 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx0), vsign_mask));
49 const __m512 vz1 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx1), vsign_mask));
50 const __m512 vz2 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx2), vsign_mask));
51 const __m512 vz3 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx3), vsign_mask));
52 const __m512 vz4 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx4), vsign_mask));
53 const __m512 vz5 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx5), vsign_mask));
54 const __m512 vz6 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx6), vsign_mask));
55 const __m512 vz7 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx7), vsign_mask));
56
57 __m512 vn0 = _mm512_mul_ps(vz0, vlog2e);
58 __m512 vn1 = _mm512_mul_ps(vz1, vlog2e);
59 __m512 vn2 = _mm512_mul_ps(vz2, vlog2e);
60 __m512 vn3 = _mm512_mul_ps(vz3, vlog2e);
61 __m512 vn4 = _mm512_mul_ps(vz4, vlog2e);
62 __m512 vn5 = _mm512_mul_ps(vz5, vlog2e);
63 __m512 vn6 = _mm512_mul_ps(vz6, vlog2e);
64 __m512 vn7 = _mm512_mul_ps(vz7, vlog2e);
65
66 vn0 = _mm512_roundscale_ps(vn0, 0);
67 vn1 = _mm512_roundscale_ps(vn1, 0);
68 vn2 = _mm512_roundscale_ps(vn2, 0);
69 vn3 = _mm512_roundscale_ps(vn3, 0);
70 vn4 = _mm512_roundscale_ps(vn4, 0);
71 vn5 = _mm512_roundscale_ps(vn5, 0);
72 vn6 = _mm512_roundscale_ps(vn6, 0);
73 vn7 = _mm512_roundscale_ps(vn7, 0);
74
75 __m512 vt0 = _mm512_fmadd_ps(vn0, vminus_ln2, vz0);
76 __m512 vt1 = _mm512_fmadd_ps(vn1, vminus_ln2, vz1);
77 __m512 vt2 = _mm512_fmadd_ps(vn2, vminus_ln2, vz2);
78 __m512 vt3 = _mm512_fmadd_ps(vn3, vminus_ln2, vz3);
79 __m512 vt4 = _mm512_fmadd_ps(vn4, vminus_ln2, vz4);
80 __m512 vt5 = _mm512_fmadd_ps(vn5, vminus_ln2, vz5);
81 __m512 vt6 = _mm512_fmadd_ps(vn6, vminus_ln2, vz6);
82 __m512 vt7 = _mm512_fmadd_ps(vn7, vminus_ln2, vz7);
83
84 __m512 vp0 = _mm512_fmadd_ps(vc5, vt0, vc4);
85 __m512 vp1 = _mm512_fmadd_ps(vc5, vt1, vc4);
86 __m512 vp2 = _mm512_fmadd_ps(vc5, vt2, vc4);
87 __m512 vp3 = _mm512_fmadd_ps(vc5, vt3, vc4);
88 __m512 vp4 = _mm512_fmadd_ps(vc5, vt4, vc4);
89 __m512 vp5 = _mm512_fmadd_ps(vc5, vt5, vc4);
90 __m512 vp6 = _mm512_fmadd_ps(vc5, vt6, vc4);
91 __m512 vp7 = _mm512_fmadd_ps(vc5, vt7, vc4);
92
93 vp0 = _mm512_fmadd_ps(vp0, vt0, vc3);
94 vp1 = _mm512_fmadd_ps(vp1, vt1, vc3);
95 vp2 = _mm512_fmadd_ps(vp2, vt2, vc3);
96 vp3 = _mm512_fmadd_ps(vp3, vt3, vc3);
97 vp4 = _mm512_fmadd_ps(vp4, vt4, vc3);
98 vp5 = _mm512_fmadd_ps(vp5, vt5, vc3);
99 vp6 = _mm512_fmadd_ps(vp6, vt6, vc3);
100 vp7 = _mm512_fmadd_ps(vp7, vt7, vc3);
101
102 vp0 = _mm512_fmadd_ps(vp0, vt0, vc2);
103 vp1 = _mm512_fmadd_ps(vp1, vt1, vc2);
104 vp2 = _mm512_fmadd_ps(vp2, vt2, vc2);
105 vp3 = _mm512_fmadd_ps(vp3, vt3, vc2);
106 vp4 = _mm512_fmadd_ps(vp4, vt4, vc2);
107 vp5 = _mm512_fmadd_ps(vp5, vt5, vc2);
108 vp6 = _mm512_fmadd_ps(vp6, vt6, vc2);
109 vp7 = _mm512_fmadd_ps(vp7, vt7, vc2);
110
111 vp0 = _mm512_fmadd_ps(vp0, vt0, vc1);
112 vp1 = _mm512_fmadd_ps(vp1, vt1, vc1);
113 vp2 = _mm512_fmadd_ps(vp2, vt2, vc1);
114 vp3 = _mm512_fmadd_ps(vp3, vt3, vc1);
115 vp4 = _mm512_fmadd_ps(vp4, vt4, vc1);
116 vp5 = _mm512_fmadd_ps(vp5, vt5, vc1);
117 vp6 = _mm512_fmadd_ps(vp6, vt6, vc1);
118 vp7 = _mm512_fmadd_ps(vp7, vt7, vc1);
119
120 vp0 = _mm512_fmadd_ps(vp0, vt0, vone);
121 vp1 = _mm512_fmadd_ps(vp1, vt1, vone);
122 vp2 = _mm512_fmadd_ps(vp2, vt2, vone);
123 vp3 = _mm512_fmadd_ps(vp3, vt3, vone);
124 vp4 = _mm512_fmadd_ps(vp4, vt4, vone);
125 vp5 = _mm512_fmadd_ps(vp5, vt5, vone);
126 vp6 = _mm512_fmadd_ps(vp6, vt6, vone);
127 vp7 = _mm512_fmadd_ps(vp7, vt7, vone);
128
129 const __m512 ve0 = _mm512_scalef_ps(vp0, vn0);
130 const __m512 ve1 = _mm512_scalef_ps(vp1, vn1);
131 const __m512 ve2 = _mm512_scalef_ps(vp2, vn2);
132 const __m512 ve3 = _mm512_scalef_ps(vp3, vn3);
133 const __m512 ve4 = _mm512_scalef_ps(vp4, vn4);
134 const __m512 ve5 = _mm512_scalef_ps(vp5, vn5);
135 const __m512 ve6 = _mm512_scalef_ps(vp6, vn6);
136 const __m512 ve7 = _mm512_scalef_ps(vp7, vn7);
137
138 const __m512 vd0 = _mm512_add_ps(ve0, vone);
139 const __m512 vd1 = _mm512_add_ps(ve1, vone);
140 const __m512 vd2 = _mm512_add_ps(ve2, vone);
141 const __m512 vd3 = _mm512_add_ps(ve3, vone);
142 const __m512 vd4 = _mm512_add_ps(ve4, vone);
143 const __m512 vd5 = _mm512_add_ps(ve5, vone);
144 const __m512 vd6 = _mm512_add_ps(ve6, vone);
145 const __m512 vd7 = _mm512_add_ps(ve7, vone);
146
147 __m512 vf0 = _mm512_div_ps(ve0, vd0);
148 __m512 vf1 = _mm512_div_ps(ve1, vd1);
149 __m512 vf2 = _mm512_div_ps(ve2, vd2);
150 __m512 vf3 = _mm512_div_ps(ve3, vd3);
151 __m512 vf4 = _mm512_div_ps(ve4, vd4);
152 __m512 vf5 = _mm512_div_ps(ve5, vd5);
153 __m512 vf6 = _mm512_div_ps(ve6, vd6);
154 __m512 vf7 = _mm512_div_ps(ve7, vd7);
155
156 vf0 = _mm512_mask_sub_ps(vf0, _mm512_testn_epi32_mask(_mm512_castps_si512(vx0), vsign_mask), vone, vf0);
157 vf1 = _mm512_mask_sub_ps(vf1, _mm512_testn_epi32_mask(_mm512_castps_si512(vx1), vsign_mask), vone, vf1);
158 vf2 = _mm512_mask_sub_ps(vf2, _mm512_testn_epi32_mask(_mm512_castps_si512(vx2), vsign_mask), vone, vf2);
159 vf3 = _mm512_mask_sub_ps(vf3, _mm512_testn_epi32_mask(_mm512_castps_si512(vx3), vsign_mask), vone, vf3);
160 vf4 = _mm512_mask_sub_ps(vf4, _mm512_testn_epi32_mask(_mm512_castps_si512(vx4), vsign_mask), vone, vf4);
161 vf5 = _mm512_mask_sub_ps(vf5, _mm512_testn_epi32_mask(_mm512_castps_si512(vx5), vsign_mask), vone, vf5);
162 vf6 = _mm512_mask_sub_ps(vf6, _mm512_testn_epi32_mask(_mm512_castps_si512(vx6), vsign_mask), vone, vf6);
163 vf7 = _mm512_mask_sub_ps(vf7, _mm512_testn_epi32_mask(_mm512_castps_si512(vx7), vsign_mask), vone, vf7);
164
165 _mm512_storeu_ps(y, vf0);
166 _mm512_storeu_ps(y + 16, vf1);
167 _mm512_storeu_ps(y + 32, vf2);
168 _mm512_storeu_ps(y + 48, vf3);
169 _mm512_storeu_ps(y + 64, vf4);
170 _mm512_storeu_ps(y + 80, vf5);
171 _mm512_storeu_ps(y + 96, vf6);
172 _mm512_storeu_ps(y + 112, vf7);
173 y += 128;
174 }
175 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
176 const __m512 vx = _mm512_loadu_ps(x);
177 x += 16;
178
179 const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask));
180
181 const __m512 vn = _mm512_roundscale_ps(_mm512_mul_ps(vz, vlog2e), 0);
182
183 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2, vz);
184
185 __m512 vp = _mm512_fmadd_ps(vc5, vt, vc4);
186 vp = _mm512_fmadd_ps(vp, vt, vc3);
187 vp = _mm512_fmadd_ps(vp, vt, vc2);
188 vp = _mm512_fmadd_ps(vp, vt, vc1);
189 vp = _mm512_fmadd_ps(vp, vt, vone);
190
191 const __m512 ve = _mm512_scalef_ps(vp, vn);
192 const __m512 vd = _mm512_add_ps(ve, vone);
193
194 __m512 vf = _mm512_div_ps(ve, vd);
195
196 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
197
198 _mm512_storeu_ps(y, vf);
199 y += 16;
200 }
201 if XNN_UNLIKELY(n != 0) {
202 assert(n >= 1 * sizeof(float));
203 assert(n <= 15 * sizeof(float));
204
205 // Prepare mask for valid 32-bit elements (depends on n).
206 n >>= 2 /* log2(sizeof(float)) */;
207 const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1)));
208
209 const __m512 vx = _mm512_maskz_loadu_ps(vmask, x);
210 const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask));
211
212 const __m512 vn = _mm512_roundscale_ps(_mm512_mul_ps(vz, vlog2e), 0);
213
214 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2, vz);
215
216 __m512 vp = _mm512_fmadd_ps(vc5, vt, vc4);
217 vp = _mm512_fmadd_ps(vp, vt, vc3);
218 vp = _mm512_fmadd_ps(vp, vt, vc2);
219 vp = _mm512_fmadd_ps(vp, vt, vc1);
220 vp = _mm512_fmadd_ps(vp, vt, vone);
221
222 const __m512 ve = _mm512_scalef_ps(vp, vn);
223 const __m512 vd = _mm512_add_ps(ve, vone);
224
225 __m512 vf = _mm512_div_ps(ve, vd);
226
227 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
228
229 _mm512_mask_storeu_ps(y, vmask, vf);
230 }
231 }
232