1 // Auto-generated file. Do not edit!
2 // Template: src/f32-vsigmoid/wasmsimd-rr2-p5-div.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 <wasm_simd128.h>
13
14 #include <xnnpack/common.h>
15 #include <xnnpack/vunary.h>
16
17
xnn_f32_vsigmoid_ukernel__wasmsimd_rr2_p5_div_x12(size_t n,const float * x,float * y,const union xnn_f32_sigmoid_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_f32_vsigmoid_ukernel__wasmsimd_rr2_p5_div_x12(
19 size_t n,
20 const float* x,
21 float* y,
22 const union xnn_f32_sigmoid_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
23 {
24 assert(n % sizeof(float) == 0);
25
26 const v128_t vmagic_bias = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.magic_bias);
27 const v128_t vminus_log2e = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.minus_log2e);
28 const v128_t vln2_hi = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.ln2_hi);
29 const v128_t vln2_lo = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.ln2_lo);
30 const v128_t vc5 = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.c5);
31 const v128_t vc4 = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.c4);
32 const v128_t vc3 = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.c3);
33 const v128_t vc2 = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.c2);
34 const v128_t vc1 = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.c1);
35 const v128_t vone = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.one);
36 const v128_t vdenorm_cutoff = wasm_v128_load64_splat(params->wasmsimd_rr2_p5.denorm_cutoff);
37
38 for (; n >= 12 * sizeof(float); n -= 12 * sizeof(float)) {
39 const v128_t vx0123 = wasm_v128_load(x);
40 const v128_t vx4567 = wasm_v128_load(x + 4);
41 const v128_t vx89AB = wasm_v128_load(x + 8);
42 x += 12;
43
44 const v128_t vz0123 = wasm_f32x4_abs(vx0123);
45 const v128_t vz4567 = wasm_f32x4_abs(vx4567);
46 const v128_t vz89AB = wasm_f32x4_abs(vx89AB);
47
48 v128_t vn0123 = wasm_f32x4_add(vmagic_bias, wasm_f32x4_mul(vz0123, vminus_log2e));
49 v128_t vn4567 = wasm_f32x4_add(vmagic_bias, wasm_f32x4_mul(vz4567, vminus_log2e));
50 v128_t vn89AB = wasm_f32x4_add(vmagic_bias, wasm_f32x4_mul(vz89AB, vminus_log2e));
51
52 const v128_t vs0123 = wasm_i32x4_shl(vn0123, 23);
53 const v128_t vs4567 = wasm_i32x4_shl(vn4567, 23);
54 const v128_t vs89AB = wasm_i32x4_shl(vn89AB, 23);
55
56 vn0123 = wasm_f32x4_sub(vn0123, vmagic_bias);
57 vn4567 = wasm_f32x4_sub(vn4567, vmagic_bias);
58 vn89AB = wasm_f32x4_sub(vn89AB, vmagic_bias);
59
60 v128_t vt0123 = wasm_f32x4_add(vz0123, wasm_f32x4_mul(vn0123, vln2_hi));
61 v128_t vt4567 = wasm_f32x4_add(vz4567, wasm_f32x4_mul(vn4567, vln2_hi));
62 v128_t vt89AB = wasm_f32x4_add(vz89AB, wasm_f32x4_mul(vn89AB, vln2_hi));
63
64 vt0123 = wasm_f32x4_add(vt0123, wasm_f32x4_mul(vn0123, vln2_lo));
65 vt4567 = wasm_f32x4_add(vt4567, wasm_f32x4_mul(vn4567, vln2_lo));
66 vt89AB = wasm_f32x4_add(vt89AB, wasm_f32x4_mul(vn89AB, vln2_lo));
67
68 v128_t vp0123 = wasm_f32x4_add(vc4, wasm_f32x4_mul(vt0123, vc5));
69 v128_t vp4567 = wasm_f32x4_add(vc4, wasm_f32x4_mul(vt4567, vc5));
70 v128_t vp89AB = wasm_f32x4_add(vc4, wasm_f32x4_mul(vt89AB, vc5));
71
72 vp0123 = wasm_f32x4_add(vc3, wasm_f32x4_mul(vt0123, vp0123));
73 vp4567 = wasm_f32x4_add(vc3, wasm_f32x4_mul(vt4567, vp4567));
74 vp89AB = wasm_f32x4_add(vc3, wasm_f32x4_mul(vt89AB, vp89AB));
75
76 vp0123 = wasm_f32x4_add(vc2, wasm_f32x4_mul(vt0123, vp0123));
77 vp4567 = wasm_f32x4_add(vc2, wasm_f32x4_mul(vt4567, vp4567));
78 vp89AB = wasm_f32x4_add(vc2, wasm_f32x4_mul(vt89AB, vp89AB));
79
80 vp0123 = wasm_f32x4_add(vc1, wasm_f32x4_mul(vt0123, vp0123));
81 vp4567 = wasm_f32x4_add(vc1, wasm_f32x4_mul(vt4567, vp4567));
82 vp89AB = wasm_f32x4_add(vc1, wasm_f32x4_mul(vt89AB, vp89AB));
83
84 vt0123 = wasm_f32x4_mul(vt0123, vs0123);
85 vt4567 = wasm_f32x4_mul(vt4567, vs4567);
86 vt89AB = wasm_f32x4_mul(vt89AB, vs89AB);
87
88 const v128_t ve0123 = wasm_f32x4_add(vs0123, wasm_f32x4_mul(vt0123, vp0123));
89 const v128_t ve4567 = wasm_f32x4_add(vs4567, wasm_f32x4_mul(vt4567, vp4567));
90 const v128_t ve89AB = wasm_f32x4_add(vs89AB, wasm_f32x4_mul(vt89AB, vp89AB));
91
92 const v128_t vd0123 = wasm_f32x4_add(ve0123, vone);
93 const v128_t vd4567 = wasm_f32x4_add(ve4567, vone);
94 const v128_t vd89AB = wasm_f32x4_add(ve89AB, vone);
95
96 v128_t vf0123 = wasm_f32x4_div(ve0123, vd0123);
97 v128_t vf4567 = wasm_f32x4_div(ve4567, vd4567);
98 v128_t vf89AB = wasm_f32x4_div(ve89AB, vd89AB);
99
100 vf0123 = wasm_v128_andnot(vf0123, wasm_f32x4_gt(vz0123, vdenorm_cutoff));
101 vf4567 = wasm_v128_andnot(vf4567, wasm_f32x4_gt(vz4567, vdenorm_cutoff));
102 vf89AB = wasm_v128_andnot(vf89AB, wasm_f32x4_gt(vz89AB, vdenorm_cutoff));
103
104 vf0123 = wasm_v128_bitselect(vf0123, wasm_f32x4_sub(vone, vf0123), wasm_i32x4_shr(vx0123, 31));
105 vf4567 = wasm_v128_bitselect(vf4567, wasm_f32x4_sub(vone, vf4567), wasm_i32x4_shr(vx4567, 31));
106 vf89AB = wasm_v128_bitselect(vf89AB, wasm_f32x4_sub(vone, vf89AB), wasm_i32x4_shr(vx89AB, 31));
107
108 wasm_v128_store(y, vf0123);
109 wasm_v128_store(y + 4, vf4567);
110 wasm_v128_store(y + 8, vf89AB);
111 y += 12;
112 }
113 for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) {
114 const v128_t vx = wasm_v128_load(x);
115 x += 4;
116
117 const v128_t vz = wasm_f32x4_abs(vx);
118
119 v128_t vn = wasm_f32x4_add(vmagic_bias, wasm_f32x4_mul(vz, vminus_log2e));
120 const v128_t vs = wasm_i32x4_shl(vn, 23);
121 vn = wasm_f32x4_sub(vn, vmagic_bias);
122
123 v128_t vt = wasm_f32x4_add(vz, wasm_f32x4_mul(vn, vln2_hi));
124 vt = wasm_f32x4_add(vt, wasm_f32x4_mul(vn, vln2_lo));
125
126 v128_t vp = wasm_f32x4_add(vc4, wasm_f32x4_mul(vt, vc5));
127 vp = wasm_f32x4_add(vc3, wasm_f32x4_mul(vt, vp));
128 vp = wasm_f32x4_add(vc2, wasm_f32x4_mul(vt, vp));
129 vp = wasm_f32x4_add(vc1, wasm_f32x4_mul(vt, vp));
130
131 vt = wasm_f32x4_mul(vt, vs);
132 const v128_t ve = wasm_f32x4_add(vs, wasm_f32x4_mul(vt, vp));
133 const v128_t vd = wasm_f32x4_add(ve, vone);
134
135 v128_t vf = wasm_f32x4_div(ve, vd);
136 vf = wasm_v128_andnot(vf, wasm_f32x4_gt(vz, vdenorm_cutoff));
137 vf = wasm_v128_bitselect(vf, wasm_f32x4_sub(vone, vf), wasm_i32x4_shr(vx, 31));
138
139 wasm_v128_store(y, vf);
140 y += 4;
141 }
142 if XNN_UNLIKELY(n != 0) {
143 const v128_t vx = wasm_v128_load(x);
144
145 const v128_t vz = wasm_f32x4_abs(vx);
146
147 v128_t vn = wasm_f32x4_add(vmagic_bias, wasm_f32x4_mul(vz, vminus_log2e));
148 const v128_t vs = wasm_i32x4_shl(vn, 23);
149 vn = wasm_f32x4_sub(vn, vmagic_bias);
150
151 v128_t vt = wasm_f32x4_add(vz, wasm_f32x4_mul(vn, vln2_hi));
152 vt = wasm_f32x4_add(vt, wasm_f32x4_mul(vn, vln2_lo));
153
154 v128_t vp = wasm_f32x4_add(vc4, wasm_f32x4_mul(vt, vc5));
155 vp = wasm_f32x4_add(vc3, wasm_f32x4_mul(vt, vp));
156 vp = wasm_f32x4_add(vc2, wasm_f32x4_mul(vt, vp));
157 vp = wasm_f32x4_add(vc1, wasm_f32x4_mul(vt, vp));
158
159 vt = wasm_f32x4_mul(vt, vs);
160 const v128_t ve = wasm_f32x4_add(vs, wasm_f32x4_mul(vt, vp));
161 const v128_t vd = wasm_f32x4_add(ve, vone);
162
163 v128_t vf = wasm_f32x4_div(ve, vd);
164 vf = wasm_v128_andnot(vf, wasm_f32x4_gt(vz, vdenorm_cutoff));
165 vf = wasm_v128_bitselect(vf, wasm_f32x4_sub(vone, vf), wasm_i32x4_shr(vx, 31));
166
167 if (n & (2 * sizeof(float))) {
168 *((double*) y) = wasm_f64x2_extract_lane(vf, 0);
169 vf = wasm_v32x4_shuffle(vf, vf, 2, 3, 2, 3);
170 y += 2;
171 }
172 if (n & (1 * sizeof(float))) {
173 *y = wasm_f32x4_extract_lane(vf, 0);
174 }
175 }
176 }
177