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_x24(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_x24(
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 >= 24 * sizeof(float); n -= 24 * 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 v128_t vxGHIJ = wasm_v128_load(x + 16);
51 v128_t vxKLMN = wasm_v128_load(x + 20);
52 x += 24;
53
54 const v128_t vz0123 = wasm_f32x4_mul(vx0123, vprescale);
55 const v128_t vz4567 = wasm_f32x4_mul(vx4567, vprescale);
56 const v128_t vz89AB = wasm_f32x4_mul(vx89AB, vprescale);
57 const v128_t vzCDEF = wasm_f32x4_mul(vxCDEF, vprescale);
58 const v128_t vzGHIJ = wasm_f32x4_mul(vxGHIJ, vprescale);
59 const v128_t vzKLMN = wasm_f32x4_mul(vxKLMN, vprescale);
60
61 v128_t vn0123 = wasm_f32x4_add(wasm_f32x4_mul(vz0123, vlog2e), vmagic_bias);
62 v128_t vn4567 = wasm_f32x4_add(wasm_f32x4_mul(vz4567, vlog2e), vmagic_bias);
63 v128_t vn89AB = wasm_f32x4_add(wasm_f32x4_mul(vz89AB, vlog2e), vmagic_bias);
64 v128_t vnCDEF = wasm_f32x4_add(wasm_f32x4_mul(vzCDEF, vlog2e), vmagic_bias);
65 v128_t vnGHIJ = wasm_f32x4_add(wasm_f32x4_mul(vzGHIJ, vlog2e), vmagic_bias);
66 v128_t vnKLMN = wasm_f32x4_add(wasm_f32x4_mul(vzKLMN, vlog2e), vmagic_bias);
67
68 const v128_t vidx0123 = wasm_i32x4_shl(wasm_v128_and(vn0123, vindex_mask), 2);
69 const v128_t ven0123 = wasm_i32x4_shl(vn0123, 19);
70 const v128_t vidx4567 = wasm_i32x4_shl(wasm_v128_and(vn4567, vindex_mask), 2);
71 const v128_t ven4567 = wasm_i32x4_shl(vn4567, 19);
72 const v128_t vidx89AB = wasm_i32x4_shl(wasm_v128_and(vn89AB, vindex_mask), 2);
73 const v128_t ven89AB = wasm_i32x4_shl(vn89AB, 19);
74 const v128_t vidxCDEF = wasm_i32x4_shl(wasm_v128_and(vnCDEF, vindex_mask), 2);
75 const v128_t venCDEF = wasm_i32x4_shl(vnCDEF, 19);
76 const v128_t vidxGHIJ = wasm_i32x4_shl(wasm_v128_and(vnGHIJ, vindex_mask), 2);
77 const v128_t venGHIJ = wasm_i32x4_shl(vnGHIJ, 19);
78 const v128_t vidxKLMN = wasm_i32x4_shl(wasm_v128_and(vnKLMN, vindex_mask), 2);
79 const v128_t venKLMN = wasm_i32x4_shl(vnKLMN, 19);
80
81 const uint64_t vidx01 = wasm_i64x2_extract_lane(vidx0123, 0);
82 const uint64_t vidx23 = wasm_i64x2_extract_lane(vidx0123, 1);
83 const float vl0 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx01));
84 const float vl1 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx01 >> 32)));
85 const float vl2 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx23));
86 const float vl3 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx23 >> 32)));
87 const v128_t vl0123 = wasm_f32x4_make(vl0, vl1, vl2, vl3);
88 const uint64_t vidx45 = wasm_i64x2_extract_lane(vidx4567, 0);
89 const uint64_t vidx67 = wasm_i64x2_extract_lane(vidx4567, 1);
90 const float vl4 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx45));
91 const float vl5 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx45 >> 32)));
92 const float vl6 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx67));
93 const float vl7 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx67 >> 32)));
94 const v128_t vl4567 = wasm_f32x4_make(vl4, vl5, vl6, vl7);
95 const uint64_t vidx89 = wasm_i64x2_extract_lane(vidx89AB, 0);
96 const uint64_t vidxAB = wasm_i64x2_extract_lane(vidx89AB, 1);
97 const float vl8 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx89));
98 const float vl9 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx89 >> 32)));
99 const float vlA = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxAB));
100 const float vlB = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxAB >> 32)));
101 const v128_t vl89AB = wasm_f32x4_make(vl8, vl9, vlA, vlB);
102 const uint64_t vidxCD = wasm_i64x2_extract_lane(vidxCDEF, 0);
103 const uint64_t vidxEF = wasm_i64x2_extract_lane(vidxCDEF, 1);
104 const float vlC = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxCD));
105 const float vlD = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxCD >> 32)));
106 const float vlE = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxEF));
107 const float vlF = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxEF >> 32)));
108 const v128_t vlCDEF = wasm_f32x4_make(vlC, vlD, vlE, vlF);
109 const uint64_t vidxGH = wasm_i64x2_extract_lane(vidxGHIJ, 0);
110 const uint64_t vidxIJ = wasm_i64x2_extract_lane(vidxGHIJ, 1);
111 const float vlG = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxGH));
112 const float vlH = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxGH >> 32)));
113 const float vlI = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxIJ));
114 const float vlJ = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxIJ >> 32)));
115 const v128_t vlGHIJ = wasm_f32x4_make(vlG, vlH, vlI, vlJ);
116 const uint64_t vidxKL = wasm_i64x2_extract_lane(vidxKLMN, 0);
117 const uint64_t vidxMN = wasm_i64x2_extract_lane(vidxKLMN, 1);
118 const float vlK = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxKL));
119 const float vlL = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxKL >> 32)));
120 const float vlM = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxMN));
121 const float vlN = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxMN >> 32)));
122 const v128_t vlKLMN = wasm_f32x4_make(vlK, vlL, vlM, vlN);
123
124 vn0123 = wasm_f32x4_sub(vn0123, vmagic_bias);
125 v128_t vs0123 = wasm_i32x4_add(vl0123, ven0123);
126 vn4567 = wasm_f32x4_sub(vn4567, vmagic_bias);
127 v128_t vs4567 = wasm_i32x4_add(vl4567, ven4567);
128 vn89AB = wasm_f32x4_sub(vn89AB, vmagic_bias);
129 v128_t vs89AB = wasm_i32x4_add(vl89AB, ven89AB);
130 vnCDEF = wasm_f32x4_sub(vnCDEF, vmagic_bias);
131 v128_t vsCDEF = wasm_i32x4_add(vlCDEF, venCDEF);
132 vnGHIJ = wasm_f32x4_sub(vnGHIJ, vmagic_bias);
133 v128_t vsGHIJ = wasm_i32x4_add(vlGHIJ, venGHIJ);
134 vnKLMN = wasm_f32x4_sub(vnKLMN, vmagic_bias);
135 v128_t vsKLMN = wasm_i32x4_add(vlKLMN, venKLMN);
136
137 v128_t vt0123 = wasm_f32x4_add(wasm_f32x4_mul(vn0123, vminus_ln2_hi), vz0123);
138 const v128_t vsatm0123 = wasm_f32x4_le(vz0123, vsat_cutoff);
139 v128_t vt4567 = wasm_f32x4_add(wasm_f32x4_mul(vn4567, vminus_ln2_hi), vz4567);
140 const v128_t vsatm4567 = wasm_f32x4_le(vz4567, vsat_cutoff);
141 v128_t vt89AB = wasm_f32x4_add(wasm_f32x4_mul(vn89AB, vminus_ln2_hi), vz89AB);
142 const v128_t vsatm89AB = wasm_f32x4_le(vz89AB, vsat_cutoff);
143 v128_t vtCDEF = wasm_f32x4_add(wasm_f32x4_mul(vnCDEF, vminus_ln2_hi), vzCDEF);
144 const v128_t vsatmCDEF = wasm_f32x4_le(vzCDEF, vsat_cutoff);
145 v128_t vtGHIJ = wasm_f32x4_add(wasm_f32x4_mul(vnGHIJ, vminus_ln2_hi), vzGHIJ);
146 const v128_t vsatmGHIJ = wasm_f32x4_le(vzGHIJ, vsat_cutoff);
147 v128_t vtKLMN = wasm_f32x4_add(wasm_f32x4_mul(vnKLMN, vminus_ln2_hi), vzKLMN);
148 const v128_t vsatmKLMN = wasm_f32x4_le(vzKLMN, vsat_cutoff);
149
150 vt0123 = wasm_f32x4_add(wasm_f32x4_mul(vn0123, vminus_ln2_lo), vt0123);
151 vs0123 = wasm_v128_andnot(vs0123, vsatm0123);
152 vt4567 = wasm_f32x4_add(wasm_f32x4_mul(vn4567, vminus_ln2_lo), vt4567);
153 vs4567 = wasm_v128_andnot(vs4567, vsatm4567);
154 vt89AB = wasm_f32x4_add(wasm_f32x4_mul(vn89AB, vminus_ln2_lo), vt89AB);
155 vs89AB = wasm_v128_andnot(vs89AB, vsatm89AB);
156 vtCDEF = wasm_f32x4_add(wasm_f32x4_mul(vnCDEF, vminus_ln2_lo), vtCDEF);
157 vsCDEF = wasm_v128_andnot(vsCDEF, vsatmCDEF);
158 vtGHIJ = wasm_f32x4_add(wasm_f32x4_mul(vnGHIJ, vminus_ln2_lo), vtGHIJ);
159 vsGHIJ = wasm_v128_andnot(vsGHIJ, vsatmGHIJ);
160 vtKLMN = wasm_f32x4_add(wasm_f32x4_mul(vnKLMN, vminus_ln2_lo), vtKLMN);
161 vsKLMN = wasm_v128_andnot(vsKLMN, vsatmKLMN);
162
163 vt0123 = wasm_v128_andnot(vt0123, vsatm0123);
164 v128_t vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt0123), vc2);
165 vt4567 = wasm_v128_andnot(vt4567, vsatm4567);
166 v128_t vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt4567), vc2);
167 vt89AB = wasm_v128_andnot(vt89AB, vsatm89AB);
168 v128_t vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt89AB), vc2);
169 vtCDEF = wasm_v128_andnot(vtCDEF, vsatmCDEF);
170 v128_t vpCDEF = wasm_f32x4_add(wasm_f32x4_mul(vc3, vtCDEF), vc2);
171 vtGHIJ = wasm_v128_andnot(vtGHIJ, vsatmGHIJ);
172 v128_t vpGHIJ = wasm_f32x4_add(wasm_f32x4_mul(vc3, vtGHIJ), vc2);
173 vtKLMN = wasm_v128_andnot(vtKLMN, vsatmKLMN);
174 v128_t vpKLMN = wasm_f32x4_add(wasm_f32x4_mul(vc3, vtKLMN), vc2);
175
176 vp0123 = wasm_f32x4_mul(vp0123, vt0123);
177 vp4567 = wasm_f32x4_mul(vp4567, vt4567);
178 vp89AB = wasm_f32x4_mul(vp89AB, vt89AB);
179 vpCDEF = wasm_f32x4_mul(vpCDEF, vtCDEF);
180 vpGHIJ = wasm_f32x4_mul(vpGHIJ, vtGHIJ);
181 vpKLMN = wasm_f32x4_mul(vpKLMN, vtKLMN);
182
183 vt0123 = wasm_f32x4_mul(vt0123, vs0123);
184 vs0123 = wasm_f32x4_sub(vs0123, vone);
185 vt4567 = wasm_f32x4_mul(vt4567, vs4567);
186 vs4567 = wasm_f32x4_sub(vs4567, vone);
187 vt89AB = wasm_f32x4_mul(vt89AB, vs89AB);
188 vs89AB = wasm_f32x4_sub(vs89AB, vone);
189 vtCDEF = wasm_f32x4_mul(vtCDEF, vsCDEF);
190 vsCDEF = wasm_f32x4_sub(vsCDEF, vone);
191 vtGHIJ = wasm_f32x4_mul(vtGHIJ, vsGHIJ);
192 vsGHIJ = wasm_f32x4_sub(vsGHIJ, vone);
193 vtKLMN = wasm_f32x4_mul(vtKLMN, vsKLMN);
194 vsKLMN = wasm_f32x4_sub(vsKLMN, vone);
195
196 vp0123 = wasm_f32x4_add(wasm_f32x4_mul(vp0123, vt0123), vt0123);
197 vp4567 = wasm_f32x4_add(wasm_f32x4_mul(vp4567, vt4567), vt4567);
198 vp89AB = wasm_f32x4_add(wasm_f32x4_mul(vp89AB, vt89AB), vt89AB);
199 vpCDEF = wasm_f32x4_add(wasm_f32x4_mul(vpCDEF, vtCDEF), vtCDEF);
200 vpGHIJ = wasm_f32x4_add(wasm_f32x4_mul(vpGHIJ, vtGHIJ), vtGHIJ);
201 vpKLMN = wasm_f32x4_add(wasm_f32x4_mul(vpKLMN, vtKLMN), vtKLMN);
202
203 const v128_t ve0123 = wasm_f32x4_mul(wasm_f32x4_add(vp0123, vs0123), valpha);
204 const v128_t ve4567 = wasm_f32x4_mul(wasm_f32x4_add(vp4567, vs4567), valpha);
205 const v128_t ve89AB = wasm_f32x4_mul(wasm_f32x4_add(vp89AB, vs89AB), valpha);
206 const v128_t veCDEF = wasm_f32x4_mul(wasm_f32x4_add(vpCDEF, vsCDEF), valpha);
207 const v128_t veGHIJ = wasm_f32x4_mul(wasm_f32x4_add(vpGHIJ, vsGHIJ), valpha);
208 const v128_t veKLMN = wasm_f32x4_mul(wasm_f32x4_add(vpKLMN, vsKLMN), valpha);
209
210 const v128_t vsignm0123 = wasm_i32x4_shr(vx0123, 31);
211 vx0123 = wasm_f32x4_mul(vx0123, vbeta);
212 const v128_t vsignm4567 = wasm_i32x4_shr(vx4567, 31);
213 vx4567 = wasm_f32x4_mul(vx4567, vbeta);
214 const v128_t vsignm89AB = wasm_i32x4_shr(vx89AB, 31);
215 vx89AB = wasm_f32x4_mul(vx89AB, vbeta);
216 const v128_t vsignmCDEF = wasm_i32x4_shr(vxCDEF, 31);
217 vxCDEF = wasm_f32x4_mul(vxCDEF, vbeta);
218 const v128_t vsignmGHIJ = wasm_i32x4_shr(vxGHIJ, 31);
219 vxGHIJ = wasm_f32x4_mul(vxGHIJ, vbeta);
220 const v128_t vsignmKLMN = wasm_i32x4_shr(vxKLMN, 31);
221 vxKLMN = wasm_f32x4_mul(vxKLMN, vbeta);
222
223 const v128_t vy0123 = wasm_v128_bitselect(ve0123, vx0123, vsignm0123);
224 const v128_t vy4567 = wasm_v128_bitselect(ve4567, vx4567, vsignm4567);
225 const v128_t vy89AB = wasm_v128_bitselect(ve89AB, vx89AB, vsignm89AB);
226 const v128_t vyCDEF = wasm_v128_bitselect(veCDEF, vxCDEF, vsignmCDEF);
227 const v128_t vyGHIJ = wasm_v128_bitselect(veGHIJ, vxGHIJ, vsignmGHIJ);
228 const v128_t vyKLMN = wasm_v128_bitselect(veKLMN, vxKLMN, vsignmKLMN);
229
230 wasm_v128_store(y, vy0123);
231 wasm_v128_store(y + 4, vy4567);
232 wasm_v128_store(y + 8, vy89AB);
233 wasm_v128_store(y + 12, vyCDEF);
234 wasm_v128_store(y + 16, vyGHIJ);
235 wasm_v128_store(y + 20, vyKLMN);
236 y += 24;
237 }
238 for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) {
239 v128_t vx = wasm_v128_load(x);
240 x += 4;
241
242 const v128_t vz = wasm_f32x4_mul(vx, vprescale);
243
244 v128_t vn = wasm_f32x4_add(wasm_f32x4_mul(vz, vlog2e), vmagic_bias);
245 const v128_t vidx = wasm_i32x4_shl(wasm_v128_and(vn, vindex_mask), 2);
246 const v128_t ven = wasm_i32x4_shl(vn, 19);
247
248 const uint64_t vidx_lo = wasm_i64x2_extract_lane(vidx, 0);
249 const uint64_t vidx_hi = wasm_i64x2_extract_lane(vidx, 1);
250 const float vl0 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_lo));
251 const float vl1 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_lo >> 32)));
252 const float vl2 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_hi));
253 const float vl3 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_hi >> 32)));
254 const v128_t vl = wasm_f32x4_make(vl0, vl1, vl2, vl3);
255
256 v128_t vs = wasm_i32x4_add(vl, ven);
257 vn = wasm_f32x4_sub(vn, vmagic_bias);
258
259 v128_t vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_hi), vz);
260 const v128_t vsatm = wasm_f32x4_le(vz, vsat_cutoff);
261 vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_lo), vt);
262 vs = wasm_v128_andnot(vs, vsatm);
263 vt = wasm_v128_andnot(vt, vsatm);
264
265 v128_t vp = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt), vc2);
266 vp = wasm_f32x4_mul(vp, vt);
267
268 vt = wasm_f32x4_mul(vt, vs);
269 vs = wasm_f32x4_sub(vs, vone);
270 vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vt);
271 const v128_t ve = wasm_f32x4_mul(wasm_f32x4_add(vp, vs), valpha);
272
273 const v128_t vsignm = wasm_i32x4_shr(vx, 31);
274 vx = wasm_f32x4_mul(vx, vbeta);
275 const v128_t vy = wasm_v128_bitselect(ve, vx, vsignm);
276
277 wasm_v128_store(y, vy);
278 y += 4;
279 }
280 if XNN_UNLIKELY(n != 0) {
281 v128_t vx = wasm_v128_load(x);
282
283 const v128_t vz = wasm_f32x4_mul(vx, vprescale);
284
285 v128_t vn = wasm_f32x4_add(wasm_f32x4_mul(vz, vlog2e), vmagic_bias);
286 const v128_t vidx = wasm_i32x4_shl(wasm_v128_and(vn, vindex_mask), 2);
287 const v128_t ven = wasm_i32x4_shl(vn, 19);
288
289 const uint64_t vidx_lo = wasm_i64x2_extract_lane(vidx, 0);
290 const uint64_t vidx_hi = wasm_i64x2_extract_lane(vidx, 1);
291 const float vl0 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_lo));
292 const float vl1 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_lo >> 32)));
293 const float vl2 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_hi));
294 const float vl3 = *((const float*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_hi >> 32)));
295 const v128_t vl = wasm_f32x4_make(vl0, vl1, vl2, vl3);
296
297 v128_t vs = wasm_i32x4_add(vl, ven);
298 vn = wasm_f32x4_sub(vn, vmagic_bias);
299
300 v128_t vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_hi), vz);
301 const v128_t vsatm = wasm_f32x4_le(vz, vsat_cutoff);
302 vt = wasm_f32x4_add(wasm_f32x4_mul(vn, vminus_ln2_lo), vt);
303 vs = wasm_v128_andnot(vs, vsatm);
304 vt = wasm_v128_andnot(vt, vsatm);
305
306 v128_t vp = wasm_f32x4_add(wasm_f32x4_mul(vc3, vt), vc2);
307 vp = wasm_f32x4_mul(vp, vt);
308
309 vt = wasm_f32x4_mul(vt, vs);
310 vs = wasm_f32x4_sub(vs, vone);
311 vp = wasm_f32x4_add(wasm_f32x4_mul(vp, vt), vt);
312 const v128_t ve = wasm_f32x4_mul(wasm_f32x4_add(vp, vs), valpha);
313
314 const v128_t vsignm = wasm_i32x4_shr(vx, 31);
315 vx = wasm_f32x4_mul(vx, vbeta);
316 v128_t vy = wasm_v128_bitselect(ve, vx, vsignm);
317
318 if (n & (2 * sizeof(float))) {
319 *((double*) y) = wasm_f64x2_extract_lane(vy, 0);
320 vy = wasm_v32x4_shuffle(vy, vy, 2, 3, 2, 3);
321 y += 2;
322 }
323 if (n & (1 * sizeof(float))) {
324 *y = wasm_f32x4_extract_lane(vy, 0);
325 }
326 }
327 }
328