1 // Auto-generated file. Do not edit!
2 // Template: src/f32-velu/wasmsimd-rr2-lut16-p3.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/vunary.h>
15 #include <xnnpack/common.h>
16
17
18 extern XNN_INTERNAL const float xnn_table_exp2minus_k_over_16[16];
19
xnn_f32_velu_ukernel__wasmsimd_x86_rr2_lut16_p3_x16(size_t n,const float * x,float * y,const union xnn_f32_elu_params params[restrict XNN_MIN_ELEMENTS (1)])20 void xnn_f32_velu_ukernel__wasmsimd_x86_rr2_lut16_p3_x16(
21 size_t n,
22 const float* x,
23 float* y,
24 const union xnn_f32_elu_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
25 {
26 assert(n != 0);
27 assert(n % sizeof(float) == 0);
28 assert(x != NULL);
29 assert(y != NULL);
30
31 const v128_t vprescale = wasm_v32x4_load_splat(¶ms->scalar.prescale);
32 const v128_t valpha = wasm_v32x4_load_splat(¶ms->scalar.alpha);
33 const v128_t vbeta = wasm_v32x4_load_splat(¶ms->scalar.beta);
34
35 const v128_t vsat_cutoff = wasm_f32x4_splat(-0x1.154246p+4f);
36 const v128_t vmagic_bias = wasm_f32x4_splat(0x1.800000p19f);
37 const v128_t vlog2e = wasm_f32x4_splat(0x1.715476p+0f);
38 const v128_t vindex_mask = wasm_i32x4_splat(0xF);
39 const v128_t vminus_ln2_hi = wasm_f32x4_splat(-0x1.62E400p-1f);
40 const v128_t vminus_ln2_lo = wasm_f32x4_splat(-0x1.7F7D1Cp-20f);
41 const v128_t vc3 = wasm_f32x4_splat(0x1.55561Cp-3f);
42 const v128_t vc2 = wasm_f32x4_splat(0x1.0001ECp-1f);
43 const v128_t vone = wasm_f32x4_splat(1.0f);
44
45 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
46 v128_t vx0123 = wasm_v128_load(x);
47 v128_t vx4567 = wasm_v128_load(x + 4);
48 v128_t vx89AB = wasm_v128_load(x + 8);
49 v128_t vxCDEF = wasm_v128_load(x + 12);
50 x += 16;
51
52 const v128_t vz0123 = wasm_f32x4_mul(vx0123, vprescale);
53 const v128_t vz4567 = wasm_f32x4_mul(vx4567, vprescale);
54 const v128_t vz89AB = wasm_f32x4_mul(vx89AB, vprescale);
55 const v128_t vzCDEF = wasm_f32x4_mul(vxCDEF, vprescale);
56
57 v128_t vn0123 = wasm_f32x4_add(wasm_f32x4_mul(vz0123, vlog2e), vmagic_bias);
58 v128_t vn4567 = wasm_f32x4_add(wasm_f32x4_mul(vz4567, vlog2e), vmagic_bias);
59 v128_t vn89AB = wasm_f32x4_add(wasm_f32x4_mul(vz89AB, vlog2e), vmagic_bias);
60 v128_t vnCDEF = wasm_f32x4_add(wasm_f32x4_mul(vzCDEF, vlog2e), vmagic_bias);
61
62 const v128_t vidx0123 = wasm_i32x4_shl(wasm_v128_and(vn0123, vindex_mask), 2);
63 const v128_t ven0123 = wasm_i32x4_shl(vn0123, 19);
64 const v128_t vidx4567 = wasm_i32x4_shl(wasm_v128_and(vn4567, vindex_mask), 2);
65 const v128_t ven4567 = wasm_i32x4_shl(vn4567, 19);
66 const v128_t vidx89AB = wasm_i32x4_shl(wasm_v128_and(vn89AB, vindex_mask), 2);
67 const v128_t ven89AB = wasm_i32x4_shl(vn89AB, 19);
68 const v128_t vidxCDEF = wasm_i32x4_shl(wasm_v128_and(vnCDEF, vindex_mask), 2);
69 const v128_t venCDEF = wasm_i32x4_shl(vnCDEF, 19);
70
71 const uint64_t vidx01 = wasm_i64x2_extract_lane(vidx0123, 0);
72 const uint64_t vidx23 = wasm_i64x2_extract_lane(vidx0123, 1);
73 const float vl0 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx01));
74 const float vl1 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx01 >> 32)));
75 const float vl2 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx23));
76 const float vl3 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx23 >> 32)));
77 const v128_t vl0123 = wasm_f32x4_make(vl0, vl1, vl2, vl3);
78 const uint64_t vidx45 = wasm_i64x2_extract_lane(vidx4567, 0);
79 const uint64_t vidx67 = wasm_i64x2_extract_lane(vidx4567, 1);
80 const float vl4 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx45));
81 const float vl5 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx45 >> 32)));
82 const float vl6 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx67));
83 const float vl7 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx67 >> 32)));
84 const v128_t vl4567 = wasm_f32x4_make(vl4, vl5, vl6, vl7);
85 const uint64_t vidx89 = wasm_i64x2_extract_lane(vidx89AB, 0);
86 const uint64_t vidxAB = wasm_i64x2_extract_lane(vidx89AB, 1);
87 const float vl8 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx89));
88 const float vl9 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx89 >> 32)));
89 const float vlA = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxAB));
90 const float vlB = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxAB >> 32)));
91 const v128_t vl89AB = wasm_f32x4_make(vl8, vl9, vlA, vlB);
92 const uint64_t vidxCD = wasm_i64x2_extract_lane(vidxCDEF, 0);
93 const uint64_t vidxEF = wasm_i64x2_extract_lane(vidxCDEF, 1);
94 const float vlC = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxCD));
95 const float vlD = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxCD >> 32)));
96 const float vlE = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxEF));
97 const float vlF = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxEF >> 32)));
98 const v128_t vlCDEF = wasm_f32x4_make(vlC, vlD, vlE, vlF);
99
100 vn0123 = wasm_f32x4_sub(vn0123, vmagic_bias);
101 v128_t vs0123 = wasm_i32x4_add(vl0123, ven0123);
102 vn4567 = wasm_f32x4_sub(vn4567, vmagic_bias);
103 v128_t vs4567 = wasm_i32x4_add(vl4567, ven4567);
104 vn89AB = wasm_f32x4_sub(vn89AB, vmagic_bias);
105 v128_t vs89AB = wasm_i32x4_add(vl89AB, ven89AB);
106 vnCDEF = wasm_f32x4_sub(vnCDEF, vmagic_bias);
107 v128_t vsCDEF = wasm_i32x4_add(vlCDEF, venCDEF);
108
109 v128_t vt0123 = wasm_f32x4_add(wasm_f32x4_mul(vn0123, vminus_ln2_hi), vz0123);
110 const v128_t vsatm0123 = wasm_f32x4_le(vz0123, vsat_cutoff);
111 v128_t vt4567 = wasm_f32x4_add(wasm_f32x4_mul(vn4567, vminus_ln2_hi), vz4567);
112 const v128_t vsatm4567 = wasm_f32x4_le(vz4567, vsat_cutoff);
113 v128_t vt89AB = wasm_f32x4_add(wasm_f32x4_mul(vn89AB, vminus_ln2_hi), vz89AB);
114 const v128_t vsatm89AB = wasm_f32x4_le(vz89AB, vsat_cutoff);
115 v128_t vtCDEF = wasm_f32x4_add(wasm_f32x4_mul(vnCDEF, vminus_ln2_hi), vzCDEF);
116 const v128_t vsatmCDEF = wasm_f32x4_le(vzCDEF, vsat_cutoff);
117
118 vt0123 = wasm_f32x4_add(wasm_f32x4_mul(vn0123, vminus_ln2_lo), vt0123);
119 vs0123 = wasm_v128_andnot(vs0123, vsatm0123);
120 vt4567 = wasm_f32x4_add(wasm_f32x4_mul(vn4567, vminus_ln2_lo), vt4567);
121 vs4567 = wasm_v128_andnot(vs4567, vsatm4567);
122 vt89AB = wasm_f32x4_add(wasm_f32x4_mul(vn89AB, vminus_ln2_lo), vt89AB);
123 vs89AB = wasm_v128_andnot(vs89AB, vsatm89AB);
124 vtCDEF = wasm_f32x4_add(wasm_f32x4_mul(vnCDEF, vminus_ln2_lo), vtCDEF);
125 vsCDEF = wasm_v128_andnot(vsCDEF, vsatmCDEF);
126
127 vt0123 = wasm_v128_andnot(vt0123, vsatm0123);
128 v128_t vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt0123), vc2);
129 vt4567 = wasm_v128_andnot(vt4567, vsatm4567);
130 v128_t vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt4567), vc2);
131 vt89AB = wasm_v128_andnot(vt89AB, vsatm89AB);
132 v128_t vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt89AB), vc2);
133 vtCDEF = wasm_v128_andnot(vtCDEF, vsatmCDEF);
134 v128_t vpCDEF = wasm_f32x4_add(wasm_f32x4_mul(vc3, vtCDEF), vc2);
135
136 vp0123 = wasm_f32x4_mul(vp0123, vt0123);
137 vp4567 = wasm_f32x4_mul(vp4567, vt4567);
138 vp89AB = wasm_f32x4_mul(vp89AB, vt89AB);
139 vpCDEF = wasm_f32x4_mul(vpCDEF, vtCDEF);
140
141 vt0123 = wasm_f32x4_mul(vt0123, vs0123);
142 vs0123 = wasm_f32x4_sub(vs0123, vone);
143 vt4567 = wasm_f32x4_mul(vt4567, vs4567);
144 vs4567 = wasm_f32x4_sub(vs4567, vone);
145 vt89AB = wasm_f32x4_mul(vt89AB, vs89AB);
146 vs89AB = wasm_f32x4_sub(vs89AB, vone);
147 vtCDEF = wasm_f32x4_mul(vtCDEF, vsCDEF);
148 vsCDEF = wasm_f32x4_sub(vsCDEF, vone);
149
150 vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vp0123, vt0123), vt0123);
151 vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vp4567, vt4567), vt4567);
152 vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vp89AB, vt89AB), vt89AB);
153 vpCDEF = wasm_f32x4_add(wasm_f32x4_mul(vpCDEF, vtCDEF), vtCDEF);
154
155 const v128_t ve0123 = wasm_f32x4_mul(wasm_f32x4_add(vp0123, vs0123), valpha);
156 const v128_t ve4567 = wasm_f32x4_mul(wasm_f32x4_add(vp4567, vs4567), valpha);
157 const v128_t ve89AB = wasm_f32x4_mul(wasm_f32x4_add(vp89AB, vs89AB), valpha);
158 const v128_t veCDEF = wasm_f32x4_mul(wasm_f32x4_add(vpCDEF, vsCDEF), valpha);
159
160 const v128_t vsignm0123 = wasm_i32x4_shr(vx0123, 31);
161 vx0123 = wasm_f32x4_mul(vx0123, vbeta);
162 const v128_t vsignm4567 = wasm_i32x4_shr(vx4567, 31);
163 vx4567 = wasm_f32x4_mul(vx4567, vbeta);
164 const v128_t vsignm89AB = wasm_i32x4_shr(vx89AB, 31);
165 vx89AB = wasm_f32x4_mul(vx89AB, vbeta);
166 const v128_t vsignmCDEF = wasm_i32x4_shr(vxCDEF, 31);
167 vxCDEF = wasm_f32x4_mul(vxCDEF, vbeta);
168
169 const v128_t vy0123 = wasm_v128_bitselect(ve0123, vx0123, vsignm0123);
170 const v128_t vy4567 = wasm_v128_bitselect(ve4567, vx4567, vsignm4567);
171 const v128_t vy89AB = wasm_v128_bitselect(ve89AB, vx89AB, vsignm89AB);
172 const v128_t vyCDEF = wasm_v128_bitselect(veCDEF, vxCDEF, vsignmCDEF);
173
174 wasm_v128_store(y, vy0123);
175 wasm_v128_store(y + 4, vy4567);
176 wasm_v128_store(y + 8, vy89AB);
177 wasm_v128_store(y + 12, vyCDEF);
178 y += 16;
179 }
180 for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) {
181 v128_t vx = wasm_v128_load(x);
182 x += 4;
183
184 const v128_t vz = wasm_f32x4_mul(vx, vprescale);
185
186 v128_t vn = wasm_f32x4_add(wasm_f32x4_mul(vz, vlog2e), vmagic_bias);
187 const v128_t vidx = wasm_i32x4_shl(wasm_v128_and(vn, vindex_mask), 2);
188 const v128_t ven = wasm_i32x4_shl(vn, 19);
189
190 const uint64_t vidx_lo = wasm_i64x2_extract_lane(vidx, 0);
191 const uint64_t vidx_hi = wasm_i64x2_extract_lane(vidx, 1);
192 const float vl0 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_lo));
193 const float vl1 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_lo >> 32)));
194 const float vl2 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_hi));
195 const float vl3 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_hi >> 32)));
196 const v128_t vl = wasm_f32x4_make(vl0, vl1, vl2, vl3);
197
198 v128_t vs = wasm_i32x4_add(vl, ven);
199 vn = wasm_f32x4_sub(vn, vmagic_bias);
200
201 v128_t vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_hi), vz);
202 const v128_t vsatm = wasm_f32x4_le(vz, vsat_cutoff);
203 vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_lo), vt);
204 vs = wasm_v128_andnot(vs, vsatm);
205 vt = wasm_v128_andnot(vt, vsatm);
206
207 v128_t vp = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt), vc2);
208 vp = wasm_f32x4_mul(vp, vt);
209
210 vt = wasm_f32x4_mul(vt, vs);
211 vs = wasm_f32x4_sub(vs, vone);
212 vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vt);
213 const v128_t ve = wasm_f32x4_mul(wasm_f32x4_add(vp, vs), valpha);
214
215 const v128_t vsignm = wasm_i32x4_shr(vx, 31);
216 vx = wasm_f32x4_mul(vx, vbeta);
217 const v128_t vy = wasm_v128_bitselect(ve, vx, vsignm);
218
219 wasm_v128_store(y, vy);
220 y += 4;
221 }
222 if XNN_UNLIKELY(n != 0) {
223 v128_t vx = wasm_v128_load(x);
224
225 const v128_t vz = wasm_f32x4_mul(vx, vprescale);
226
227 v128_t vn = wasm_f32x4_add(wasm_f32x4_mul(vz, vlog2e), vmagic_bias);
228 const v128_t vidx = wasm_i32x4_shl(wasm_v128_and(vn, vindex_mask), 2);
229 const v128_t ven = wasm_i32x4_shl(vn, 19);
230
231 const uint64_t vidx_lo = wasm_i64x2_extract_lane(vidx, 0);
232 const uint64_t vidx_hi = wasm_i64x2_extract_lane(vidx, 1);
233 const float vl0 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_lo));
234 const float vl1 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_lo >> 32)));
235 const float vl2 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_hi));
236 const float vl3 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_hi >> 32)));
237 const v128_t vl = wasm_f32x4_make(vl0, vl1, vl2, vl3);
238
239 v128_t vs = wasm_i32x4_add(vl, ven);
240 vn = wasm_f32x4_sub(vn, vmagic_bias);
241
242 v128_t vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_hi), vz);
243 const v128_t vsatm = wasm_f32x4_le(vz, vsat_cutoff);
244 vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_lo), vt);
245 vs = wasm_v128_andnot(vs, vsatm);
246 vt = wasm_v128_andnot(vt, vsatm);
247
248 v128_t vp = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt), vc2);
249 vp = wasm_f32x4_mul(vp, vt);
250
251 vt = wasm_f32x4_mul(vt, vs);
252 vs = wasm_f32x4_sub(vs, vone);
253 vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vt);
254 const v128_t ve = wasm_f32x4_mul(wasm_f32x4_add(vp, vs), valpha);
255
256 const v128_t vsignm = wasm_i32x4_shr(vx, 31);
257 vx = wasm_f32x4_mul(vx, vbeta);
258 v128_t vy = wasm_v128_bitselect(ve, vx, vsignm);
259
260 if (n & (2 * sizeof(float))) {
261 *((double*) y) = wasm_f64x2_extract_lane(vy, 0);
262 vy = wasm_v32x4_shuffle(vy, vy, 2, 3, 2, 3);
263 y += 2;
264 }
265 if (n & (1 * sizeof(float))) {
266 *y = wasm_f32x4_extract_lane(vy, 0);
267 }
268 }
269 }
270