1 // Auto-generated file. Do not edit!
2 // Template: src/f32-sigmoid/avx512f-lut16-p3-perm-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_lut16_p3_perm_scalef_div_x112(size_t n,const float * x,float * y,const void * params)19 void xnn_f32_sigmoid_ukernel__avx512f_rr1_lut16_p3_perm_scalef_div_x112(
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 vmagic_bias = _mm512_set1_ps(0x1.800000p19f);
29 const __m512 vlog2e = _mm512_set1_ps(0x1.715476p0f);
30 const __m512 vtable = _mm512_set_ps(
31 0x1.EA4AFAp+0f, 0x1.D5818Ep+0f, 0x1.C199BEp+0f, 0x1.AE89FAp+0f,
32 0x1.9C4918p+0f, 0x1.8ACE54p+0f, 0x1.7A1148p+0f, 0x1.6A09E6p+0f,
33 0x1.5AB07Ep+0f, 0x1.4BFDAEp+0f, 0x1.3DEA64p+0f, 0x1.306FE0p+0f,
34 0x1.2387A6p+0f, 0x1.172B84p+0f, 0x1.0B5586p+0f, 0x1.000000p+0f);
35 const __m512 vminus_ln2 = _mm512_set1_ps(-0x1.62E43p-1f);
36 const __m512 vc3 = _mm512_set1_ps(0x1.55559Ap-3f);
37 const __m512 vc2 = _mm512_set1_ps(0x1.00021Ep-1f);
38 const __m512 vone = _mm512_set1_ps(1.0f);
39
40 for (; n >= 112 * sizeof(float); n -= 112 * sizeof(float)) {
41 const __m512 vx0 = _mm512_loadu_ps(x);
42 const __m512 vx1 = _mm512_loadu_ps(x + 16);
43 const __m512 vx2 = _mm512_loadu_ps(x + 32);
44 const __m512 vx3 = _mm512_loadu_ps(x + 48);
45 const __m512 vx4 = _mm512_loadu_ps(x + 64);
46 const __m512 vx5 = _mm512_loadu_ps(x + 80);
47 const __m512 vx6 = _mm512_loadu_ps(x + 96);
48 x += 112;
49
50 const __m512 vz0 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx0), vsign_mask));
51 const __m512 vz1 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx1), vsign_mask));
52 const __m512 vz2 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx2), vsign_mask));
53 const __m512 vz3 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx3), vsign_mask));
54 const __m512 vz4 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx4), vsign_mask));
55 const __m512 vz5 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx5), vsign_mask));
56 const __m512 vz6 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx6), 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
66 const __m512 vl0 = _mm512_permutexvar_ps(_mm512_castps_si512(vn0), vtable);
67 const __m512 vl1 = _mm512_permutexvar_ps(_mm512_castps_si512(vn1), vtable);
68 const __m512 vl2 = _mm512_permutexvar_ps(_mm512_castps_si512(vn2), vtable);
69 const __m512 vl3 = _mm512_permutexvar_ps(_mm512_castps_si512(vn3), vtable);
70 const __m512 vl4 = _mm512_permutexvar_ps(_mm512_castps_si512(vn4), vtable);
71 const __m512 vl5 = _mm512_permutexvar_ps(_mm512_castps_si512(vn5), vtable);
72 const __m512 vl6 = _mm512_permutexvar_ps(_mm512_castps_si512(vn6), vtable);
73
74 vn0 = _mm512_sub_ps(vn0, vmagic_bias);
75 vn1 = _mm512_sub_ps(vn1, vmagic_bias);
76 vn2 = _mm512_sub_ps(vn2, vmagic_bias);
77 vn3 = _mm512_sub_ps(vn3, vmagic_bias);
78 vn4 = _mm512_sub_ps(vn4, vmagic_bias);
79 vn5 = _mm512_sub_ps(vn5, vmagic_bias);
80 vn6 = _mm512_sub_ps(vn6, vmagic_bias);
81
82 __m512 vt0 = _mm512_fmadd_ps(vn0, vminus_ln2, vz0);
83 __m512 vt1 = _mm512_fmadd_ps(vn1, vminus_ln2, vz1);
84 __m512 vt2 = _mm512_fmadd_ps(vn2, vminus_ln2, vz2);
85 __m512 vt3 = _mm512_fmadd_ps(vn3, vminus_ln2, vz3);
86 __m512 vt4 = _mm512_fmadd_ps(vn4, vminus_ln2, vz4);
87 __m512 vt5 = _mm512_fmadd_ps(vn5, vminus_ln2, vz5);
88 __m512 vt6 = _mm512_fmadd_ps(vn6, vminus_ln2, vz6);
89
90 __m512 vp0 = _mm512_fmadd_ps(vt0, vc3, vc2);
91 __m512 vp1 = _mm512_fmadd_ps(vt1, vc3, vc2);
92 __m512 vp2 = _mm512_fmadd_ps(vt2, vc3, vc2);
93 __m512 vp3 = _mm512_fmadd_ps(vt3, vc3, vc2);
94 __m512 vp4 = _mm512_fmadd_ps(vt4, vc3, vc2);
95 __m512 vp5 = _mm512_fmadd_ps(vt5, vc3, vc2);
96 __m512 vp6 = _mm512_fmadd_ps(vt6, vc3, vc2);
97
98 vp0 = _mm512_mul_ps(vp0, vt0);
99 vp1 = _mm512_mul_ps(vp1, vt1);
100 vp2 = _mm512_mul_ps(vp2, vt2);
101 vp3 = _mm512_mul_ps(vp3, vt3);
102 vp4 = _mm512_mul_ps(vp4, vt4);
103 vp5 = _mm512_mul_ps(vp5, vt5);
104 vp6 = _mm512_mul_ps(vp6, vt6);
105
106 vp0 = _mm512_fmadd_ps(vt0, vp0, vt0);
107 vp1 = _mm512_fmadd_ps(vt1, vp1, vt1);
108 vp2 = _mm512_fmadd_ps(vt2, vp2, vt2);
109 vp3 = _mm512_fmadd_ps(vt3, vp3, vt3);
110 vp4 = _mm512_fmadd_ps(vt4, vp4, vt4);
111 vp5 = _mm512_fmadd_ps(vt5, vp5, vt5);
112 vp6 = _mm512_fmadd_ps(vt6, vp6, vt6);
113
114 vp0 = _mm512_fmadd_ps(vl0, vp0, vl0);
115 vp1 = _mm512_fmadd_ps(vl1, vp1, vl1);
116 vp2 = _mm512_fmadd_ps(vl2, vp2, vl2);
117 vp3 = _mm512_fmadd_ps(vl3, vp3, vl3);
118 vp4 = _mm512_fmadd_ps(vl4, vp4, vl4);
119 vp5 = _mm512_fmadd_ps(vl5, vp5, vl5);
120 vp6 = _mm512_fmadd_ps(vl6, vp6, vl6);
121
122 const __m512 ve0 = _mm512_scalef_ps(vp0, vn0);
123 const __m512 ve1 = _mm512_scalef_ps(vp1, vn1);
124 const __m512 ve2 = _mm512_scalef_ps(vp2, vn2);
125 const __m512 ve3 = _mm512_scalef_ps(vp3, vn3);
126 const __m512 ve4 = _mm512_scalef_ps(vp4, vn4);
127 const __m512 ve5 = _mm512_scalef_ps(vp5, vn5);
128 const __m512 ve6 = _mm512_scalef_ps(vp6, vn6);
129
130 const __m512 vd0 = _mm512_add_ps(ve0, vone);
131 const __m512 vd1 = _mm512_add_ps(ve1, vone);
132 const __m512 vd2 = _mm512_add_ps(ve2, vone);
133 const __m512 vd3 = _mm512_add_ps(ve3, vone);
134 const __m512 vd4 = _mm512_add_ps(ve4, vone);
135 const __m512 vd5 = _mm512_add_ps(ve5, vone);
136 const __m512 vd6 = _mm512_add_ps(ve6, vone);
137
138 __m512 vf0 = _mm512_div_ps(ve0, vd0);
139 __m512 vf1 = _mm512_div_ps(ve1, vd1);
140 __m512 vf2 = _mm512_div_ps(ve2, vd2);
141 __m512 vf3 = _mm512_div_ps(ve3, vd3);
142 __m512 vf4 = _mm512_div_ps(ve4, vd4);
143 __m512 vf5 = _mm512_div_ps(ve5, vd5);
144 __m512 vf6 = _mm512_div_ps(ve6, vd6);
145
146 vf0 = _mm512_mask_sub_ps(vf0, _mm512_testn_epi32_mask(_mm512_castps_si512(vx0), vsign_mask), vone, vf0);
147 vf1 = _mm512_mask_sub_ps(vf1, _mm512_testn_epi32_mask(_mm512_castps_si512(vx1), vsign_mask), vone, vf1);
148 vf2 = _mm512_mask_sub_ps(vf2, _mm512_testn_epi32_mask(_mm512_castps_si512(vx2), vsign_mask), vone, vf2);
149 vf3 = _mm512_mask_sub_ps(vf3, _mm512_testn_epi32_mask(_mm512_castps_si512(vx3), vsign_mask), vone, vf3);
150 vf4 = _mm512_mask_sub_ps(vf4, _mm512_testn_epi32_mask(_mm512_castps_si512(vx4), vsign_mask), vone, vf4);
151 vf5 = _mm512_mask_sub_ps(vf5, _mm512_testn_epi32_mask(_mm512_castps_si512(vx5), vsign_mask), vone, vf5);
152 vf6 = _mm512_mask_sub_ps(vf6, _mm512_testn_epi32_mask(_mm512_castps_si512(vx6), vsign_mask), vone, vf6);
153
154 _mm512_storeu_ps(y, vf0);
155 _mm512_storeu_ps(y + 16, vf1);
156 _mm512_storeu_ps(y + 32, vf2);
157 _mm512_storeu_ps(y + 48, vf3);
158 _mm512_storeu_ps(y + 64, vf4);
159 _mm512_storeu_ps(y + 80, vf5);
160 _mm512_storeu_ps(y + 96, vf6);
161 y += 112;
162 }
163 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
164 const __m512 vx = _mm512_loadu_ps(x);
165 x += 16;
166
167 const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask));
168
169 __m512 vn = _mm512_fmadd_ps(vz, vlog2e, vmagic_bias);
170 const __m512 vl = _mm512_permutexvar_ps(_mm512_castps_si512(vn), vtable);
171 vn = _mm512_sub_ps(vn, vmagic_bias);
172
173 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2, vz);
174
175 __m512 vp = _mm512_fmadd_ps(vt, vc3, vc2);
176 vp = _mm512_mul_ps(vp, vt);
177 vp = _mm512_fmadd_ps(vt, vp, vt);
178 vp = _mm512_fmadd_ps(vl, vp, vl);
179
180 const __m512 ve = _mm512_scalef_ps(vp, vn);
181 const __m512 vd = _mm512_add_ps(ve, vone);
182
183 __m512 vf = _mm512_div_ps(ve, vd);
184
185 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
186
187 _mm512_storeu_ps(y, vf);
188 y += 16;
189 }
190 if XNN_UNLIKELY(n != 0) {
191 assert(n >= 1 * sizeof(float));
192 assert(n <= 15 * sizeof(float));
193
194 // Prepare mask for valid 32-bit elements (depends on n).
195 n >>= 2 /* log2(sizeof(float)) */;
196 const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1)));
197
198 const __m512 vx = _mm512_maskz_loadu_ps(vmask, x);
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_permutexvar_ps(_mm512_castps_si512(vn), vtable);
203 vn = _mm512_sub_ps(vn, vmagic_bias);
204
205 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2, vz);
206
207 __m512 vp = _mm512_fmadd_ps(vt, vc3, vc2);
208 vp = _mm512_mul_ps(vp, vt);
209 vp = _mm512_fmadd_ps(vt, vp, vt);
210 vp = _mm512_fmadd_ps(vl, vp, vl);
211
212 const __m512 ve = _mm512_scalef_ps(vp, vn);
213 const __m512 vd = _mm512_add_ps(ve, vone);
214
215 __m512 vf = _mm512_div_ps(ve, vd);
216
217 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
218
219 _mm512_mask_storeu_ps(y, vmask, vf);
220 }
221 }
222