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_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_rr2_lut32_p2_perm2_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_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 >= 80 * sizeof(float); n -= 80 * 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 x += 80;
45
46 const __m512 vz0 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx0), vsign_mask));
47 const __m512 vz1 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx1), vsign_mask));
48 const __m512 vz2 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx2), vsign_mask));
49 const __m512 vz3 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx3), vsign_mask));
50 const __m512 vz4 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx4), vsign_mask));
51
52 __m512 vn0 = _mm512_fmadd_ps(vz0, vlog2e, vmagic_bias);
53 __m512 vn1 = _mm512_fmadd_ps(vz1, vlog2e, vmagic_bias);
54 __m512 vn2 = _mm512_fmadd_ps(vz2, vlog2e, vmagic_bias);
55 __m512 vn3 = _mm512_fmadd_ps(vz3, vlog2e, vmagic_bias);
56 __m512 vn4 = _mm512_fmadd_ps(vz4, vlog2e, vmagic_bias);
57
58 const __m512 vl0 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn0), vtable_hi);
59 const __m512 vl1 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn1), vtable_hi);
60 const __m512 vl2 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn2), vtable_hi);
61 const __m512 vl3 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn3), vtable_hi);
62 const __m512 vl4 = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn4), vtable_hi);
63
64 vn0 = _mm512_sub_ps(vn0, vmagic_bias);
65 vn1 = _mm512_sub_ps(vn1, vmagic_bias);
66 vn2 = _mm512_sub_ps(vn2, vmagic_bias);
67 vn3 = _mm512_sub_ps(vn3, vmagic_bias);
68 vn4 = _mm512_sub_ps(vn4, vmagic_bias);
69
70 __m512 vt0 = _mm512_fmadd_ps(vn0, vminus_ln2_hi, vz0);
71 __m512 vt1 = _mm512_fmadd_ps(vn1, vminus_ln2_hi, vz1);
72 __m512 vt2 = _mm512_fmadd_ps(vn2, vminus_ln2_hi, vz2);
73 __m512 vt3 = _mm512_fmadd_ps(vn3, vminus_ln2_hi, vz3);
74 __m512 vt4 = _mm512_fmadd_ps(vn4, vminus_ln2_hi, vz4);
75
76 vt0 = _mm512_fmadd_ps(vn0, vminus_ln2_lo, vt0);
77 vt1 = _mm512_fmadd_ps(vn1, vminus_ln2_lo, vt1);
78 vt2 = _mm512_fmadd_ps(vn2, vminus_ln2_lo, vt2);
79 vt3 = _mm512_fmadd_ps(vn3, vminus_ln2_lo, vt3);
80 vt4 = _mm512_fmadd_ps(vn4, vminus_ln2_lo, vt4);
81
82 __m512 vp0 = _mm512_fmadd_ps(vt0, vc2, vc1);
83 __m512 vp1 = _mm512_fmadd_ps(vt1, vc2, vc1);
84 __m512 vp2 = _mm512_fmadd_ps(vt2, vc2, vc1);
85 __m512 vp3 = _mm512_fmadd_ps(vt3, vc2, vc1);
86 __m512 vp4 = _mm512_fmadd_ps(vt4, vc2, vc1);
87
88 vt0 = _mm512_mul_ps(vt0, vl0);
89 vt1 = _mm512_mul_ps(vt1, vl1);
90 vt2 = _mm512_mul_ps(vt2, vl2);
91 vt3 = _mm512_mul_ps(vt3, vl3);
92 vt4 = _mm512_mul_ps(vt4, vl4);
93
94 vp0 = _mm512_fmadd_ps(vt0, vp0, vl0);
95 vp1 = _mm512_fmadd_ps(vt1, vp1, vl1);
96 vp2 = _mm512_fmadd_ps(vt2, vp2, vl2);
97 vp3 = _mm512_fmadd_ps(vt3, vp3, vl3);
98 vp4 = _mm512_fmadd_ps(vt4, vp4, vl4);
99
100 const __m512 ve0 = _mm512_scalef_ps(vp0, vn0);
101 const __m512 ve1 = _mm512_scalef_ps(vp1, vn1);
102 const __m512 ve2 = _mm512_scalef_ps(vp2, vn2);
103 const __m512 ve3 = _mm512_scalef_ps(vp3, vn3);
104 const __m512 ve4 = _mm512_scalef_ps(vp4, vn4);
105
106 const __m512 vd0 = _mm512_add_ps(ve0, vone);
107 const __m512 vd1 = _mm512_add_ps(ve1, vone);
108 const __m512 vd2 = _mm512_add_ps(ve2, vone);
109 const __m512 vd3 = _mm512_add_ps(ve3, vone);
110 const __m512 vd4 = _mm512_add_ps(ve4, vone);
111
112 __m512 vf0 = _mm512_div_ps(ve0, vd0);
113 __m512 vf1 = _mm512_div_ps(ve1, vd1);
114 __m512 vf2 = _mm512_div_ps(ve2, vd2);
115 __m512 vf3 = _mm512_div_ps(ve3, vd3);
116 __m512 vf4 = _mm512_div_ps(ve4, vd4);
117
118 vf0 = _mm512_mask_sub_ps(vf0, _mm512_testn_epi32_mask(_mm512_castps_si512(vx0), vsign_mask), vone, vf0);
119 vf1 = _mm512_mask_sub_ps(vf1, _mm512_testn_epi32_mask(_mm512_castps_si512(vx1), vsign_mask), vone, vf1);
120 vf2 = _mm512_mask_sub_ps(vf2, _mm512_testn_epi32_mask(_mm512_castps_si512(vx2), vsign_mask), vone, vf2);
121 vf3 = _mm512_mask_sub_ps(vf3, _mm512_testn_epi32_mask(_mm512_castps_si512(vx3), vsign_mask), vone, vf3);
122 vf4 = _mm512_mask_sub_ps(vf4, _mm512_testn_epi32_mask(_mm512_castps_si512(vx4), vsign_mask), vone, vf4);
123
124 _mm512_storeu_ps(y, vf0);
125 _mm512_storeu_ps(y + 16, vf1);
126 _mm512_storeu_ps(y + 32, vf2);
127 _mm512_storeu_ps(y + 48, vf3);
128 _mm512_storeu_ps(y + 64, vf4);
129 y += 80;
130 }
131 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
132 const __m512 vx = _mm512_loadu_ps(x);
133 x += 16;
134
135 const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask));
136
137 __m512 vn = _mm512_fmadd_ps(vz, vlog2e, vmagic_bias);
138 const __m512 vl = _mm512_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn), vtable_hi);
139 vn = _mm512_sub_ps(vn, vmagic_bias);
140
141 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2_hi, vz);
142 vt = _mm512_fmadd_ps(vn, vminus_ln2_lo, vt);
143
144 __m512 vp = _mm512_fmadd_ps(vt, vc2, vc1);
145 vt = _mm512_mul_ps(vt, vl);
146 vp = _mm512_fmadd_ps(vt, vp, vl);
147
148 const __m512 ve = _mm512_scalef_ps(vp, vn);
149 const __m512 vd = _mm512_add_ps(ve, vone);
150
151 __m512 vf = _mm512_div_ps(ve, vd);
152
153 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
154
155 _mm512_storeu_ps(y, vf);
156 y += 16;
157 }
158 if XNN_UNLIKELY(n != 0) {
159 assert(n >= 1 * sizeof(float));
160 assert(n <= 15 * sizeof(float));
161
162 // Prepare mask for valid 32-bit elements (depends on n).
163 n >>= 2 /* log2(sizeof(float)) */;
164 const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1)));
165
166 const __m512 vx = _mm512_maskz_loadu_ps(vmask, x);
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_permutex2var_ps(vtable_lo, _mm512_castps_si512(vn), vtable_hi);
171 vn = _mm512_sub_ps(vn, vmagic_bias);
172
173 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2_hi, vz);
174 vt = _mm512_fmadd_ps(vn, vminus_ln2_lo, vt);
175
176 __m512 vp = _mm512_fmadd_ps(vt, vc2, vc1);
177 vt = _mm512_mul_ps(vt, vl);
178 vp = _mm512_fmadd_ps(vt, 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_mask_storeu_ps(y, vmask, vf);
188 }
189 }
190