1 // Auto-generated file. Do not edit!
2 // Template: src/f32-vsigmoid/avx512f-rr2-lut32-p2-perm2-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_vsigmoid_ukernel__avx512f_rr2_lut32_p2_perm2_scalef_nr1fma_x128(size_t n,const float * x,float * y,const union xnn_f32_sigmoid_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_f32_vsigmoid_ukernel__avx512f_rr2_lut32_p2_perm2_scalef_nr1fma_x128(
20 size_t n,
21 const float* x,
22 float* y,
23 const union xnn_f32_sigmoid_params params[restrict XNN_MIN_ELEMENTS(1)])
24 {
25 assert(n % sizeof(float) == 0);
26
27 const __m512i vsign_mask = _mm512_set1_epi32((int) params->avx512_rr2_lut32_p2.sign_mask);
28 const __m512 vmagic_bias = _mm512_set1_ps(params->avx512_rr2_lut32_p2.magic_bias);
29 const __m512 vlog2e = _mm512_set1_ps(params->avx512_rr2_lut32_p2.log2e);
30 const __m512 vtable_lo = _mm512_load_ps(params->avx512_rr2_lut32_p2.table_lo);
31 const __m512 vtable_hi = _mm512_load_ps(params->avx512_rr2_lut32_p2.table_hi);
32 const __m512 vminus_ln2_hi = _mm512_set1_ps(params->avx512_rr2_lut32_p2.minus_ln2_hi);
33 const __m512 vminus_ln2_lo = _mm512_set1_ps(params->avx512_rr2_lut32_p2.minus_ln2_lo);
34 const __m512 vc2 = _mm512_set1_ps(params->avx512_rr2_lut32_p2.c2);
35 const __m512 vc1 = _mm512_set1_ps(params->avx512_rr2_lut32_p2.c1);
36 const __m512 vone = _mm512_set1_ps(params->avx512_rr2_lut32_p2.one);
37
38 for (; n >= 128 * sizeof(float); n -= 128 * sizeof(float)) {
39 const __m512 vx0 = _mm512_loadu_ps(x);
40 const __m512 vx1 = _mm512_loadu_ps(x + 16);
41 const __m512 vx2 = _mm512_loadu_ps(x + 32);
42 const __m512 vx3 = _mm512_loadu_ps(x + 48);
43 const __m512 vx4 = _mm512_loadu_ps(x + 64);
44 const __m512 vx5 = _mm512_loadu_ps(x + 80);
45 const __m512 vx6 = _mm512_loadu_ps(x + 96);
46 const __m512 vx7 = _mm512_loadu_ps(x + 112);
47 x += 128;
48
49 const __m512 vz0 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx0), vsign_mask));
50 const __m512 vz1 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx1), vsign_mask));
51 const __m512 vz2 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx2), vsign_mask));
52 const __m512 vz3 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx3), vsign_mask));
53 const __m512 vz4 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx4), vsign_mask));
54 const __m512 vz5 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx5), vsign_mask));
55 const __m512 vz6 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx6), vsign_mask));
56 const __m512 vz7 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx7), vsign_mask));
57
58 __m512 vn0 = _mm512_fmadd_ps(vz0, vlog2e, vmagic_bias);
59 __m512 vn1 = _mm512_fmadd_ps(vz1, vlog2e, vmagic_bias);
60 __m512 vn2 = _mm512_fmadd_ps(vz2, vlog2e, vmagic_bias);
61 __m512 vn3 = _mm512_fmadd_ps(vz3, vlog2e, vmagic_bias);
62 __m512 vn4 = _mm512_fmadd_ps(vz4, vlog2e, vmagic_bias);
63 __m512 vn5 = _mm512_fmadd_ps(vz5, vlog2e, vmagic_bias);
64 __m512 vn6 = _mm512_fmadd_ps(vz6, vlog2e, vmagic_bias);
65 __m512 vn7 = _mm512_fmadd_ps(vz7, vlog2e, vmagic_bias);
66
67 const __m512 vl0 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn0), vtable_hi);
68 const __m512 vl1 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn1), vtable_hi);
69 const __m512 vl2 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn2), vtable_hi);
70 const __m512 vl3 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn3), vtable_hi);
71 const __m512 vl4 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn4), vtable_hi);
72 const __m512 vl5 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn5), vtable_hi);
73 const __m512 vl6 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn6), vtable_hi);
74 const __m512 vl7 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn7), vtable_hi);
75
76 vn0 = _mm512_sub_ps(vn0, vmagic_bias);
77 vn1 = _mm512_sub_ps(vn1, vmagic_bias);
78 vn2 = _mm512_sub_ps(vn2, vmagic_bias);
79 vn3 = _mm512_sub_ps(vn3, vmagic_bias);
80 vn4 = _mm512_sub_ps(vn4, vmagic_bias);
81 vn5 = _mm512_sub_ps(vn5, vmagic_bias);
82 vn6 = _mm512_sub_ps(vn6, vmagic_bias);
83 vn7 = _mm512_sub_ps(vn7, vmagic_bias);
84
85 __m512 vt0 = _mm512_fmadd_ps(vn0, vminus_ln2_hi, vz0);
86 __m512 vt1 = _mm512_fmadd_ps(vn1, vminus_ln2_hi, vz1);
87 __m512 vt2 = _mm512_fmadd_ps(vn2, vminus_ln2_hi, vz2);
88 __m512 vt3 = _mm512_fmadd_ps(vn3, vminus_ln2_hi, vz3);
89 __m512 vt4 = _mm512_fmadd_ps(vn4, vminus_ln2_hi, vz4);
90 __m512 vt5 = _mm512_fmadd_ps(vn5, vminus_ln2_hi, vz5);
91 __m512 vt6 = _mm512_fmadd_ps(vn6, vminus_ln2_hi, vz6);
92 __m512 vt7 = _mm512_fmadd_ps(vn7, vminus_ln2_hi, vz7);
93
94 vt0 = _mm512_fmadd_ps(vn0, vminus_ln2_lo, vt0);
95 vt1 = _mm512_fmadd_ps(vn1, vminus_ln2_lo, vt1);
96 vt2 = _mm512_fmadd_ps(vn2, vminus_ln2_lo, vt2);
97 vt3 = _mm512_fmadd_ps(vn3, vminus_ln2_lo, vt3);
98 vt4 = _mm512_fmadd_ps(vn4, vminus_ln2_lo, vt4);
99 vt5 = _mm512_fmadd_ps(vn5, vminus_ln2_lo, vt5);
100 vt6 = _mm512_fmadd_ps(vn6, vminus_ln2_lo, vt6);
101 vt7 = _mm512_fmadd_ps(vn7, vminus_ln2_lo, vt7);
102
103 __m512 vp0 = _mm512_fmadd_ps(vt0, vc2, vc1);
104 __m512 vp1 = _mm512_fmadd_ps(vt1, vc2, vc1);
105 __m512 vp2 = _mm512_fmadd_ps(vt2, vc2, vc1);
106 __m512 vp3 = _mm512_fmadd_ps(vt3, vc2, vc1);
107 __m512 vp4 = _mm512_fmadd_ps(vt4, vc2, vc1);
108 __m512 vp5 = _mm512_fmadd_ps(vt5, vc2, vc1);
109 __m512 vp6 = _mm512_fmadd_ps(vt6, vc2, vc1);
110 __m512 vp7 = _mm512_fmadd_ps(vt7, vc2, vc1);
111
112 vt0 = _mm512_mul_ps(vt0, vl0);
113 vt1 = _mm512_mul_ps(vt1, vl1);
114 vt2 = _mm512_mul_ps(vt2, vl2);
115 vt3 = _mm512_mul_ps(vt3, vl3);
116 vt4 = _mm512_mul_ps(vt4, vl4);
117 vt5 = _mm512_mul_ps(vt5, vl5);
118 vt6 = _mm512_mul_ps(vt6, vl6);
119 vt7 = _mm512_mul_ps(vt7, vl7);
120
121 vp0 = _mm512_fmadd_ps(vt0, vp0, vl0);
122 vp1 = _mm512_fmadd_ps(vt1, vp1, vl1);
123 vp2 = _mm512_fmadd_ps(vt2, vp2, vl2);
124 vp3 = _mm512_fmadd_ps(vt3, vp3, vl3);
125 vp4 = _mm512_fmadd_ps(vt4, vp4, vl4);
126 vp5 = _mm512_fmadd_ps(vt5, vp5, vl5);
127 vp6 = _mm512_fmadd_ps(vt6, vp6, vl6);
128 vp7 = _mm512_fmadd_ps(vt7, vp7, vl7);
129
130 const __m512 ve0 = _mm512_scalef_ps(vp0, vn0);
131 const __m512 ve1 = _mm512_scalef_ps(vp1, vn1);
132 const __m512 ve2 = _mm512_scalef_ps(vp2, vn2);
133 const __m512 ve3 = _mm512_scalef_ps(vp3, vn3);
134 const __m512 ve4 = _mm512_scalef_ps(vp4, vn4);
135 const __m512 ve5 = _mm512_scalef_ps(vp5, vn5);
136 const __m512 ve6 = _mm512_scalef_ps(vp6, vn6);
137 const __m512 ve7 = _mm512_scalef_ps(vp7, vn7);
138
139 const __m512 vd0 = _mm512_add_ps(ve0, vone);
140 const __m512 vd1 = _mm512_add_ps(ve1, vone);
141 const __m512 vd2 = _mm512_add_ps(ve2, vone);
142 const __m512 vd3 = _mm512_add_ps(ve3, vone);
143 const __m512 vd4 = _mm512_add_ps(ve4, vone);
144 const __m512 vd5 = _mm512_add_ps(ve5, vone);
145 const __m512 vd6 = _mm512_add_ps(ve6, vone);
146 const __m512 vd7 = _mm512_add_ps(ve7, vone);
147
148 __m512 vr0 = _mm512_rcp14_ps(vd0);
149 __m512 vr1 = _mm512_rcp14_ps(vd1);
150 __m512 vr2 = _mm512_rcp14_ps(vd2);
151 __m512 vr3 = _mm512_rcp14_ps(vd3);
152 __m512 vr4 = _mm512_rcp14_ps(vd4);
153 __m512 vr5 = _mm512_rcp14_ps(vd5);
154 __m512 vr6 = _mm512_rcp14_ps(vd6);
155 __m512 vr7 = _mm512_rcp14_ps(vd7);
156
157 vr0 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr0, vd0, vone), vr0, vr0);
158 vr1 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr1, vd1, vone), vr1, vr1);
159 vr2 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr2, vd2, vone), vr2, vr2);
160 vr3 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr3, vd3, vone), vr3, vr3);
161 vr4 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr4, vd4, vone), vr4, vr4);
162 vr5 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr5, vd5, vone), vr5, vr5);
163 vr6 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr6, vd6, vone), vr6, vr6);
164 vr7 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr7, vd7, vone), vr7, vr7);
165
166 __m512 vf0 = _mm512_mul_ps(ve0, vr0);
167 __m512 vf1 = _mm512_mul_ps(ve1, vr1);
168 __m512 vf2 = _mm512_mul_ps(ve2, vr2);
169 __m512 vf3 = _mm512_mul_ps(ve3, vr3);
170 __m512 vf4 = _mm512_mul_ps(ve4, vr4);
171 __m512 vf5 = _mm512_mul_ps(ve5, vr5);
172 __m512 vf6 = _mm512_mul_ps(ve6, vr6);
173 __m512 vf7 = _mm512_mul_ps(ve7, vr7);
174
175
176 vf0 = _mm512_mask_sub_ps(vf0, _mm512_testn_epi32_mask(_mm512_castps_si512(vx0), vsign_mask), vone, vf0);
177 vf1 = _mm512_mask_sub_ps(vf1, _mm512_testn_epi32_mask(_mm512_castps_si512(vx1), vsign_mask), vone, vf1);
178 vf2 = _mm512_mask_sub_ps(vf2, _mm512_testn_epi32_mask(_mm512_castps_si512(vx2), vsign_mask), vone, vf2);
179 vf3 = _mm512_mask_sub_ps(vf3, _mm512_testn_epi32_mask(_mm512_castps_si512(vx3), vsign_mask), vone, vf3);
180 vf4 = _mm512_mask_sub_ps(vf4, _mm512_testn_epi32_mask(_mm512_castps_si512(vx4), vsign_mask), vone, vf4);
181 vf5 = _mm512_mask_sub_ps(vf5, _mm512_testn_epi32_mask(_mm512_castps_si512(vx5), vsign_mask), vone, vf5);
182 vf6 = _mm512_mask_sub_ps(vf6, _mm512_testn_epi32_mask(_mm512_castps_si512(vx6), vsign_mask), vone, vf6);
183 vf7 = _mm512_mask_sub_ps(vf7, _mm512_testn_epi32_mask(_mm512_castps_si512(vx7), vsign_mask), vone, vf7);
184
185 _mm512_storeu_ps(y, vf0);
186 _mm512_storeu_ps(y + 16, vf1);
187 _mm512_storeu_ps(y + 32, vf2);
188 _mm512_storeu_ps(y + 48, vf3);
189 _mm512_storeu_ps(y + 64, vf4);
190 _mm512_storeu_ps(y + 80, vf5);
191 _mm512_storeu_ps(y + 96, vf6);
192 _mm512_storeu_ps(y + 112, vf7);
193 y += 128;
194 }
195 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
196 const __m512 vx = _mm512_loadu_ps(x);
197 x += 16;
198
199 const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask));
200
201 __m512 vn = _mm512_fmadd_ps(vz, vlog2e, vmagic_bias);
202 const __m512 vl = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn), vtable_hi);
203 vn = _mm512_sub_ps(vn, vmagic_bias);
204
205 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2_hi, vz);
206 vt = _mm512_fmadd_ps(vn, vminus_ln2_lo, vt);
207
208 __m512 vp = _mm512_fmadd_ps(vt, vc2, vc1);
209 vt = _mm512_mul_ps(vt, vl);
210 vp = _mm512_fmadd_ps(vt, vp, vl);
211
212 const __m512 ve = _mm512_scalef_ps(vp, vn);
213 const __m512 vd = _mm512_add_ps(ve, vone);
214
215 __m512 vr = _mm512_rcp14_ps(vd);
216 vr = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr, vd, vone), vr, vr);
217
218 __m512 vf = _mm512_mul_ps(ve, vr);
219
220 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
221
222 _mm512_storeu_ps(y, vf);
223 y += 16;
224 }
225 if XNN_UNLIKELY(n != 0) {
226 assert(n >= 1 * sizeof(float));
227 assert(n <= 15 * sizeof(float));
228
229 // Prepare mask for valid 32-bit elements (depends on n).
230 n >>= 2 /* log2(sizeof(float)) */;
231 const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1)));
232
233 const __m512 vx = _mm512_maskz_loadu_ps(vmask, x);
234 const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask));
235
236 __m512 vn = _mm512_fmadd_ps(vz, vlog2e, vmagic_bias);
237 const __m512 vl = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn), vtable_hi);
238 vn = _mm512_sub_ps(vn, vmagic_bias);
239
240 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2_hi, vz);
241 vt = _mm512_fmadd_ps(vn, vminus_ln2_lo, vt);
242
243 __m512 vp = _mm512_fmadd_ps(vt, vc2, vc1);
244 vt = _mm512_mul_ps(vt, vl);
245 vp = _mm512_fmadd_ps(vt, vp, vl);
246
247 const __m512 ve = _mm512_scalef_ps(vp, vn);
248 const __m512 vd = _mm512_add_ps(ve, vone);
249
250 __m512 vr = _mm512_rcp14_ps(vd);
251 vr = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr, vd, vone), vr, vr);
252
253 __m512 vf = _mm512_mul_ps(ve, vr);
254
255 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
256
257 _mm512_mask_storeu_ps(y, vmask, vf);
258 }
259 }
260