1 // Auto-generated file. Do not edit!
2 // Template: src/f32-vsigmoid/avx512f-rr1-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_vsigmoid_ukernel__avx512f_rr1_lut16_p3_perm_scalef_div_x80(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_rr1_lut16_p3_perm_scalef_div_x80(
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_rr1_lut16_p3.sign_mask);
28 const __m512 vmagic_bias = _mm512_set1_ps(params->avx512_rr1_lut16_p3.magic_bias);
29 const __m512 vlog2e = _mm512_set1_ps(params->avx512_rr1_lut16_p3.log2e);
30 const __m512 vtable = _mm512_load_ps(params->avx512_rr1_lut16_p3.table);
31 const __m512 vminus_ln2 = _mm512_set1_ps(params->avx512_rr1_lut16_p3.minus_ln2);
32 const __m512 vc3 = _mm512_set1_ps(params->avx512_rr1_lut16_p3.c3);
33 const __m512 vc2 = _mm512_set1_ps(params->avx512_rr1_lut16_p3.c2);
34 const __m512 vone = _mm512_set1_ps(params->avx512_rr1_lut16_p3.one);
35
36 for (; n >= 80 * sizeof(float); n -= 80 * sizeof(float)) {
37 const __m512 vx0 = _mm512_loadu_ps(x);
38 const __m512 vx1 = _mm512_loadu_ps(x + 16);
39 const __m512 vx2 = _mm512_loadu_ps(x + 32);
40 const __m512 vx3 = _mm512_loadu_ps(x + 48);
41 const __m512 vx4 = _mm512_loadu_ps(x + 64);
42 x += 80;
43
44 const __m512 vz0 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx0), vsign_mask));
45 const __m512 vz1 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx1), vsign_mask));
46 const __m512 vz2 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx2), vsign_mask));
47 const __m512 vz3 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx3), vsign_mask));
48 const __m512 vz4 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx4), vsign_mask));
49
50 __m512 vn0 = _mm512_fmadd_ps(vz0, vlog2e, vmagic_bias);
51 __m512 vn1 = _mm512_fmadd_ps(vz1, vlog2e, vmagic_bias);
52 __m512 vn2 = _mm512_fmadd_ps(vz2, vlog2e, vmagic_bias);
53 __m512 vn3 = _mm512_fmadd_ps(vz3, vlog2e, vmagic_bias);
54 __m512 vn4 = _mm512_fmadd_ps(vz4, vlog2e, vmagic_bias);
55
56 const __m512 vl0 = _mm512_permutexvar_ps(_mm512_castps_si512(vn0), vtable);
57 const __m512 vl1 = _mm512_permutexvar_ps(_mm512_castps_si512(vn1), vtable);
58 const __m512 vl2 = _mm512_permutexvar_ps(_mm512_castps_si512(vn2), vtable);
59 const __m512 vl3 = _mm512_permutexvar_ps(_mm512_castps_si512(vn3), vtable);
60 const __m512 vl4 = _mm512_permutexvar_ps(_mm512_castps_si512(vn4), vtable);
61
62 vn0 = _mm512_sub_ps(vn0, vmagic_bias);
63 vn1 = _mm512_sub_ps(vn1, vmagic_bias);
64 vn2 = _mm512_sub_ps(vn2, vmagic_bias);
65 vn3 = _mm512_sub_ps(vn3, vmagic_bias);
66 vn4 = _mm512_sub_ps(vn4, vmagic_bias);
67
68 __m512 vt0 = _mm512_fmadd_ps(vn0, vminus_ln2, vz0);
69 __m512 vt1 = _mm512_fmadd_ps(vn1, vminus_ln2, vz1);
70 __m512 vt2 = _mm512_fmadd_ps(vn2, vminus_ln2, vz2);
71 __m512 vt3 = _mm512_fmadd_ps(vn3, vminus_ln2, vz3);
72 __m512 vt4 = _mm512_fmadd_ps(vn4, vminus_ln2, vz4);
73
74 __m512 vp0 = _mm512_fmadd_ps(vt0, vc3, vc2);
75 __m512 vp1 = _mm512_fmadd_ps(vt1, vc3, vc2);
76 __m512 vp2 = _mm512_fmadd_ps(vt2, vc3, vc2);
77 __m512 vp3 = _mm512_fmadd_ps(vt3, vc3, vc2);
78 __m512 vp4 = _mm512_fmadd_ps(vt4, vc3, vc2);
79
80 vp0 = _mm512_mul_ps(vp0, vt0);
81 vp1 = _mm512_mul_ps(vp1, vt1);
82 vp2 = _mm512_mul_ps(vp2, vt2);
83 vp3 = _mm512_mul_ps(vp3, vt3);
84 vp4 = _mm512_mul_ps(vp4, vt4);
85
86 vp0 = _mm512_fmadd_ps(vt0, vp0, vt0);
87 vp1 = _mm512_fmadd_ps(vt1, vp1, vt1);
88 vp2 = _mm512_fmadd_ps(vt2, vp2, vt2);
89 vp3 = _mm512_fmadd_ps(vt3, vp3, vt3);
90 vp4 = _mm512_fmadd_ps(vt4, vp4, vt4);
91
92 vp0 = _mm512_fmadd_ps(vl0, vp0, vl0);
93 vp1 = _mm512_fmadd_ps(vl1, vp1, vl1);
94 vp2 = _mm512_fmadd_ps(vl2, vp2, vl2);
95 vp3 = _mm512_fmadd_ps(vl3, vp3, vl3);
96 vp4 = _mm512_fmadd_ps(vl4, vp4, vl4);
97
98 const __m512 ve0 = _mm512_scalef_ps(vp0, vn0);
99 const __m512 ve1 = _mm512_scalef_ps(vp1, vn1);
100 const __m512 ve2 = _mm512_scalef_ps(vp2, vn2);
101 const __m512 ve3 = _mm512_scalef_ps(vp3, vn3);
102 const __m512 ve4 = _mm512_scalef_ps(vp4, vn4);
103
104 const __m512 vd0 = _mm512_add_ps(ve0, vone);
105 const __m512 vd1 = _mm512_add_ps(ve1, vone);
106 const __m512 vd2 = _mm512_add_ps(ve2, vone);
107 const __m512 vd3 = _mm512_add_ps(ve3, vone);
108 const __m512 vd4 = _mm512_add_ps(ve4, vone);
109
110 __m512 vf0 = _mm512_div_ps(ve0, vd0);
111 __m512 vf1 = _mm512_div_ps(ve1, vd1);
112 __m512 vf2 = _mm512_div_ps(ve2, vd2);
113 __m512 vf3 = _mm512_div_ps(ve3, vd3);
114 __m512 vf4 = _mm512_div_ps(ve4, vd4);
115
116 vf0 = _mm512_mask_sub_ps(vf0, _mm512_testn_epi32_mask(_mm512_castps_si512(vx0), vsign_mask), vone, vf0);
117 vf1 = _mm512_mask_sub_ps(vf1, _mm512_testn_epi32_mask(_mm512_castps_si512(vx1), vsign_mask), vone, vf1);
118 vf2 = _mm512_mask_sub_ps(vf2, _mm512_testn_epi32_mask(_mm512_castps_si512(vx2), vsign_mask), vone, vf2);
119 vf3 = _mm512_mask_sub_ps(vf3, _mm512_testn_epi32_mask(_mm512_castps_si512(vx3), vsign_mask), vone, vf3);
120 vf4 = _mm512_mask_sub_ps(vf4, _mm512_testn_epi32_mask(_mm512_castps_si512(vx4), vsign_mask), vone, vf4);
121
122 _mm512_storeu_ps(y, vf0);
123 _mm512_storeu_ps(y + 16, vf1);
124 _mm512_storeu_ps(y + 32, vf2);
125 _mm512_storeu_ps(y + 48, vf3);
126 _mm512_storeu_ps(y + 64, vf4);
127 y += 80;
128 }
129 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
130 const __m512 vx = _mm512_loadu_ps(x);
131 x += 16;
132
133 const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask));
134
135 __m512 vn = _mm512_fmadd_ps(vz, vlog2e, vmagic_bias);
136 const __m512 vl = _mm512_permutexvar_ps(_mm512_castps_si512(vn), vtable);
137 vn = _mm512_sub_ps(vn, vmagic_bias);
138
139 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2, vz);
140
141 __m512 vp = _mm512_fmadd_ps(vt, vc3, vc2);
142 vp = _mm512_mul_ps(vp, vt);
143 vp = _mm512_fmadd_ps(vt, vp, vt);
144 vp = _mm512_fmadd_ps(vl, vp, vl);
145
146 const __m512 ve = _mm512_scalef_ps(vp, vn);
147 const __m512 vd = _mm512_add_ps(ve, vone);
148
149 __m512 vf = _mm512_div_ps(ve, vd);
150
151 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
152
153 _mm512_storeu_ps(y, vf);
154 y += 16;
155 }
156 if XNN_UNLIKELY(n != 0) {
157 assert(n >= 1 * sizeof(float));
158 assert(n <= 15 * sizeof(float));
159
160 // Prepare mask for valid 32-bit elements (depends on n).
161 n >>= 2 /* log2(sizeof(float)) */;
162 const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1)));
163
164 const __m512 vx = _mm512_maskz_loadu_ps(vmask, x);
165 const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask));
166
167 __m512 vn = _mm512_fmadd_ps(vz, vlog2e, vmagic_bias);
168 const __m512 vl = _mm512_permutexvar_ps(_mm512_castps_si512(vn), vtable);
169 vn = _mm512_sub_ps(vn, vmagic_bias);
170
171 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2, vz);
172
173 __m512 vp = _mm512_fmadd_ps(vt, vc3, vc2);
174 vp = _mm512_mul_ps(vp, vt);
175 vp = _mm512_fmadd_ps(vt, vp, vt);
176 vp = _mm512_fmadd_ps(vl, vp, vl);
177
178 const __m512 ve = _mm512_scalef_ps(vp, vn);
179 const __m512 vd = _mm512_add_ps(ve, vone);
180
181 __m512 vf = _mm512_div_ps(ve, vd);
182
183 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
184
185 _mm512_mask_storeu_ps(y, vmask, vf);
186 }
187 }
188