1 // Auto-generated file. Do not edit!
2 // Template: src/f32-vsigmoid/avx512f-rr1-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_vsigmoid_ukernel__avx512f_rr1_p5_scalef_nr1fma_x48(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_p5_scalef_nr1fma_x48(
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_p5.sign_mask);
28 const __m512 vlog2e = _mm512_set1_ps(params->avx512_rr1_p5.log2e);
29 const __m512 vminus_ln2 = _mm512_set1_ps(params->avx512_rr1_p5.minus_ln2);
30 const __m512 vc5 = _mm512_set1_ps(params->avx512_rr1_p5.c5);
31 const __m512 vc4 = _mm512_set1_ps(params->avx512_rr1_p5.c4);
32 const __m512 vc3 = _mm512_set1_ps(params->avx512_rr1_p5.c3);
33 const __m512 vc2 = _mm512_set1_ps(params->avx512_rr1_p5.c2);
34 const __m512 vc1 = _mm512_set1_ps(params->avx512_rr1_p5.c1);
35 const __m512 vone = _mm512_set1_ps(params->avx512_rr1_p5.one);
36
37 for (; n >= 48 * sizeof(float); n -= 48 * 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 x += 48;
42
43 const __m512 vz0 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx0), vsign_mask));
44 const __m512 vz1 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx1), vsign_mask));
45 const __m512 vz2 = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx2), vsign_mask));
46
47 __m512 vn0 = _mm512_mul_ps(vz0, vlog2e);
48 __m512 vn1 = _mm512_mul_ps(vz1, vlog2e);
49 __m512 vn2 = _mm512_mul_ps(vz2, vlog2e);
50
51 vn0 = _mm512_roundscale_ps(vn0, 0);
52 vn1 = _mm512_roundscale_ps(vn1, 0);
53 vn2 = _mm512_roundscale_ps(vn2, 0);
54
55 __m512 vt0 = _mm512_fmadd_ps(vn0, vminus_ln2, vz0);
56 __m512 vt1 = _mm512_fmadd_ps(vn1, vminus_ln2, vz1);
57 __m512 vt2 = _mm512_fmadd_ps(vn2, vminus_ln2, vz2);
58
59 __m512 vp0 = _mm512_fmadd_ps(vc5, vt0, vc4);
60 __m512 vp1 = _mm512_fmadd_ps(vc5, vt1, vc4);
61 __m512 vp2 = _mm512_fmadd_ps(vc5, vt2, vc4);
62
63 vp0 = _mm512_fmadd_ps(vp0, vt0, vc3);
64 vp1 = _mm512_fmadd_ps(vp1, vt1, vc3);
65 vp2 = _mm512_fmadd_ps(vp2, vt2, vc3);
66
67 vp0 = _mm512_fmadd_ps(vp0, vt0, vc2);
68 vp1 = _mm512_fmadd_ps(vp1, vt1, vc2);
69 vp2 = _mm512_fmadd_ps(vp2, vt2, vc2);
70
71 vp0 = _mm512_fmadd_ps(vp0, vt0, vc1);
72 vp1 = _mm512_fmadd_ps(vp1, vt1, vc1);
73 vp2 = _mm512_fmadd_ps(vp2, vt2, vc1);
74
75 vp0 = _mm512_fmadd_ps(vp0, vt0, vone);
76 vp1 = _mm512_fmadd_ps(vp1, vt1, vone);
77 vp2 = _mm512_fmadd_ps(vp2, vt2, vone);
78
79 const __m512 ve0 = _mm512_scalef_ps(vp0, vn0);
80 const __m512 ve1 = _mm512_scalef_ps(vp1, vn1);
81 const __m512 ve2 = _mm512_scalef_ps(vp2, vn2);
82
83 const __m512 vd0 = _mm512_add_ps(ve0, vone);
84 const __m512 vd1 = _mm512_add_ps(ve1, vone);
85 const __m512 vd2 = _mm512_add_ps(ve2, vone);
86
87 __m512 vr0 = _mm512_rcp14_ps(vd0);
88 __m512 vr1 = _mm512_rcp14_ps(vd1);
89 __m512 vr2 = _mm512_rcp14_ps(vd2);
90
91 vr0 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr0, vd0, vone), vr0, vr0);
92 vr1 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr1, vd1, vone), vr1, vr1);
93 vr2 = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr2, vd2, vone), vr2, vr2);
94
95 __m512 vf0 = _mm512_mul_ps(ve0, vr0);
96 __m512 vf1 = _mm512_mul_ps(ve1, vr1);
97 __m512 vf2 = _mm512_mul_ps(ve2, vr2);
98
99
100 vf0 = _mm512_mask_sub_ps(vf0, _mm512_testn_epi32_mask(_mm512_castps_si512(vx0), vsign_mask), vone, vf0);
101 vf1 = _mm512_mask_sub_ps(vf1, _mm512_testn_epi32_mask(_mm512_castps_si512(vx1), vsign_mask), vone, vf1);
102 vf2 = _mm512_mask_sub_ps(vf2, _mm512_testn_epi32_mask(_mm512_castps_si512(vx2), vsign_mask), vone, vf2);
103
104 _mm512_storeu_ps(y, vf0);
105 _mm512_storeu_ps(y + 16, vf1);
106 _mm512_storeu_ps(y + 32, vf2);
107 y += 48;
108 }
109 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
110 const __m512 vx = _mm512_loadu_ps(x);
111 x += 16;
112
113 const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask));
114
115 const __m512 vn = _mm512_roundscale_ps(_mm512_mul_ps(vz, vlog2e), 0);
116
117 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2, vz);
118
119 __m512 vp = _mm512_fmadd_ps(vc5, vt, vc4);
120 vp = _mm512_fmadd_ps(vp, vt, vc3);
121 vp = _mm512_fmadd_ps(vp, vt, vc2);
122 vp = _mm512_fmadd_ps(vp, vt, vc1);
123 vp = _mm512_fmadd_ps(vp, vt, vone);
124
125 const __m512 ve = _mm512_scalef_ps(vp, vn);
126 const __m512 vd = _mm512_add_ps(ve, vone);
127
128 __m512 vr = _mm512_rcp14_ps(vd);
129 vr = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr, vd, vone), vr, vr);
130
131 __m512 vf = _mm512_mul_ps(ve, vr);
132
133 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
134
135 _mm512_storeu_ps(y, vf);
136 y += 16;
137 }
138 if XNN_UNLIKELY(n != 0) {
139 assert(n >= 1 * sizeof(float));
140 assert(n <= 15 * sizeof(float));
141
142 // Prepare mask for valid 32-bit elements (depends on n).
143 n >>= 2 /* log2(sizeof(float)) */;
144 const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1)));
145
146 const __m512 vx = _mm512_maskz_loadu_ps(vmask, x);
147 const __m512 vz = _mm512_castsi512_ps(_mm512_or_epi32(_mm512_castps_si512(vx), vsign_mask));
148
149 const __m512 vn = _mm512_roundscale_ps(_mm512_mul_ps(vz, vlog2e), 0);
150
151 __m512 vt = _mm512_fmadd_ps(vn, vminus_ln2, vz);
152
153 __m512 vp = _mm512_fmadd_ps(vc5, vt, vc4);
154 vp = _mm512_fmadd_ps(vp, vt, vc3);
155 vp = _mm512_fmadd_ps(vp, vt, vc2);
156 vp = _mm512_fmadd_ps(vp, vt, vc1);
157 vp = _mm512_fmadd_ps(vp, vt, vone);
158
159 const __m512 ve = _mm512_scalef_ps(vp, vn);
160 const __m512 vd = _mm512_add_ps(ve, vone);
161
162 __m512 vr = _mm512_rcp14_ps(vd);
163 vr = _mm512_fmadd_ps(_mm512_fnmadd_ps(vr, vd, vone), vr, vr);
164
165 __m512 vf = _mm512_mul_ps(ve, vr);
166
167 vf = _mm512_mask_sub_ps(vf, _mm512_testn_epi32_mask(_mm512_castps_si512(vx), vsign_mask), vone, vf);
168
169 _mm512_mask_storeu_ps(y, vmask, vf);
170 }
171 }
172