1 // Auto-generated file. Do not edit!
2 // Template: src/f32-velu/sse-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 <emmintrin.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__sse2_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__sse2_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 __m128 vprescale = _mm_load_ps(params->sse.prescale);
32 const __m128 valpha = _mm_load_ps(params->sse.alpha);
33 const __m128 vbeta = _mm_load_ps(params->sse.beta);
34
35 const __m128 vsat_cutoff = _mm_set1_ps(-0x1.154246p+4f);
36 const __m128 vmagic_bias = _mm_set1_ps(0x1.800000p19f);
37 const __m128 vlog2e = _mm_set1_ps(0x1.715476p+0f);
38 const __m128i vindex_mask = _mm_set1_epi32(0xF);
39 const __m128 vminus_ln2_hi = _mm_set1_ps(-0x1.62E400p-1f);
40 const __m128 vminus_ln2_lo = _mm_set1_ps(-0x1.7F7D1Cp-20f);
41 const __m128 vc3 = _mm_set1_ps(0x1.55561Cp-3f);
42 const __m128 vc2 = _mm_set1_ps(0x1.0001ECp-1f);
43 const __m128 vone = _mm_set1_ps(1.0f);
44
45 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
46 __m128 vx0123 = _mm_loadu_ps(x);
47 __m128 vx4567 = _mm_loadu_ps(x + 4);
48 __m128 vx89AB = _mm_loadu_ps(x + 8);
49 __m128 vxCDEF = _mm_loadu_ps(x + 12);
50 x += 16;
51
52 const __m128 vz0123 = _mm_max_ps(vsat_cutoff, _mm_mul_ps(vx0123, vprescale));
53 const __m128 vz4567 = _mm_max_ps(vsat_cutoff, _mm_mul_ps(vx4567, vprescale));
54 const __m128 vz89AB = _mm_max_ps(vsat_cutoff, _mm_mul_ps(vx89AB, vprescale));
55 const __m128 vzCDEF = _mm_max_ps(vsat_cutoff, _mm_mul_ps(vxCDEF, vprescale));
56
57 __m128 vn0123 = _mm_add_ps(_mm_mul_ps(vz0123, vlog2e), vmagic_bias);
58 __m128 vn4567 = _mm_add_ps(_mm_mul_ps(vz4567, vlog2e), vmagic_bias);
59 __m128 vn89AB = _mm_add_ps(_mm_mul_ps(vz89AB, vlog2e), vmagic_bias);
60 __m128 vnCDEF = _mm_add_ps(_mm_mul_ps(vzCDEF, vlog2e), vmagic_bias);
61
62 const __m128i vidx0123 = _mm_slli_epi32(_mm_and_si128(_mm_castps_si128(vn0123), vindex_mask), 2);
63 const __m128i ven0123 = _mm_slli_epi32(_mm_castps_si128(vn0123), 19);
64 const __m128i vidx4567 = _mm_slli_epi32(_mm_and_si128(_mm_castps_si128(vn4567), vindex_mask), 2);
65 const __m128i ven4567 = _mm_slli_epi32(_mm_castps_si128(vn4567), 19);
66 const __m128i vidx89AB = _mm_slli_epi32(_mm_and_si128(_mm_castps_si128(vn89AB), vindex_mask), 2);
67 const __m128i ven89AB = _mm_slli_epi32(_mm_castps_si128(vn89AB), 19);
68 const __m128i vidxCDEF = _mm_slli_epi32(_mm_and_si128(_mm_castps_si128(vnCDEF), vindex_mask), 2);
69 const __m128i venCDEF = _mm_slli_epi32(_mm_castps_si128(vnCDEF), 19);
70
71 #if XNN_ARCH_X86_64
72 const uint64_t vidx01 = (uint64_t) _mm_cvtsi128_si64(vidx0123);
73 const uint64_t vidx23 = (uint64_t) _mm_cvtsi128_si64(_mm_unpackhi_epi64(vidx0123, vidx0123));
74 const __m128i vl0 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx01)));
75 const __m128i vl2 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx23)));
76 const __m128i vl1 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx01 >> 32))));
77 const __m128i vl01 = _mm_unpacklo_epi32(vl0, vl1);
78 const __m128i vl3 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx23 >> 32))));
79 const __m128i vl23 = _mm_unpacklo_epi32(vl2, vl3);
80 const __m128i vl0123 = _mm_unpacklo_epi64(vl01, vl23);
81 const uint64_t vidx45 = (uint64_t) _mm_cvtsi128_si64(vidx4567);
82 const uint64_t vidx67 = (uint64_t) _mm_cvtsi128_si64(_mm_unpackhi_epi64(vidx4567, vidx4567));
83 const __m128i vl4 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx45)));
84 const __m128i vl6 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx67)));
85 const __m128i vl5 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx45 >> 32))));
86 const __m128i vl45 = _mm_unpacklo_epi32(vl4, vl5);
87 const __m128i vl7 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx67 >> 32))));
88 const __m128i vl67 = _mm_unpacklo_epi32(vl6, vl7);
89 const __m128i vl4567 = _mm_unpacklo_epi64(vl45, vl67);
90 const uint64_t vidx89 = (uint64_t) _mm_cvtsi128_si64(vidx89AB);
91 const uint64_t vidxAB = (uint64_t) _mm_cvtsi128_si64(_mm_unpackhi_epi64(vidx89AB, vidx89AB));
92 const __m128i vl8 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx89)));
93 const __m128i vlA = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxAB)));
94 const __m128i vl9 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx89 >> 32))));
95 const __m128i vl89 = _mm_unpacklo_epi32(vl8, vl9);
96 const __m128i vlB = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxAB >> 32))));
97 const __m128i vlAB = _mm_unpacklo_epi32(vlA, vlB);
98 const __m128i vl89AB = _mm_unpacklo_epi64(vl89, vlAB);
99 const uint64_t vidxCD = (uint64_t) _mm_cvtsi128_si64(vidxCDEF);
100 const uint64_t vidxEF = (uint64_t) _mm_cvtsi128_si64(_mm_unpackhi_epi64(vidxCDEF, vidxCDEF));
101 const __m128i vlC = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxCD)));
102 const __m128i vlE = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidxEF)));
103 const __m128i vlD = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxCD >> 32))));
104 const __m128i vlCD = _mm_unpacklo_epi32(vlC, vlD);
105 const __m128i vlF = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidxEF >> 32))));
106 const __m128i vlEF = _mm_unpacklo_epi32(vlE, vlF);
107 const __m128i vlCDEF = _mm_unpacklo_epi64(vlCD, vlEF);
108 #else // !XNN_ARCH_X86_64
109 const uint32_t vidx0 = (uint32_t) _mm_cvtsi128_si32(vidx0123);
110 const uint32_t vidx1 = (uint32_t) _mm_extract_epi16(vidx0123, 2);
111 const uint32_t vidx2 = (uint32_t) _mm_extract_epi16(vidx0123, 4);
112 const uint32_t vidx3 = (uint32_t) _mm_extract_epi16(vidx0123, 6);
113 const __m128i vl0 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidx0)));
114 const __m128i vl2 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidx2)));
115 const __m128i vl1 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidx1)));
116 const __m128i vl01 = _mm_unpacklo_epi32(vl0, vl1);
117 const __m128i vl3 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidx3)));
118 const __m128i vl23 = _mm_unpacklo_epi32(vl2, vl3);
119 const __m128i vl0123 = _mm_unpacklo_epi64(vl01, vl23);
120 const uint32_t vidx4 = (uint32_t) _mm_cvtsi128_si32(vidx4567);
121 const uint32_t vidx5 = (uint32_t) _mm_extract_epi16(vidx4567, 2);
122 const uint32_t vidx6 = (uint32_t) _mm_extract_epi16(vidx4567, 4);
123 const uint32_t vidx7 = (uint32_t) _mm_extract_epi16(vidx4567, 6);
124 const __m128i vl4 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidx4)));
125 const __m128i vl6 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidx6)));
126 const __m128i vl5 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidx5)));
127 const __m128i vl45 = _mm_unpacklo_epi32(vl4, vl5);
128 const __m128i vl7 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidx7)));
129 const __m128i vl67 = _mm_unpacklo_epi32(vl6, vl7);
130 const __m128i vl4567 = _mm_unpacklo_epi64(vl45, vl67);
131 const uint32_t vidx8 = (uint32_t) _mm_cvtsi128_si32(vidx89AB);
132 const uint32_t vidx9 = (uint32_t) _mm_extract_epi16(vidx89AB, 2);
133 const uint32_t vidxA = (uint32_t) _mm_extract_epi16(vidx89AB, 4);
134 const uint32_t vidxB = (uint32_t) _mm_extract_epi16(vidx89AB, 6);
135 const __m128i vl8 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidx8)));
136 const __m128i vlA = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidxA)));
137 const __m128i vl9 = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidx9)));
138 const __m128i vl89 = _mm_unpacklo_epi32(vl8, vl9);
139 const __m128i vlB = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidxB)));
140 const __m128i vlAB = _mm_unpacklo_epi32(vlA, vlB);
141 const __m128i vl89AB = _mm_unpacklo_epi64(vl89, vlAB);
142 const uint32_t vidxC = (uint32_t) _mm_cvtsi128_si32(vidxCDEF);
143 const uint32_t vidxD = (uint32_t) _mm_extract_epi16(vidxCDEF, 2);
144 const uint32_t vidxE = (uint32_t) _mm_extract_epi16(vidxCDEF, 4);
145 const uint32_t vidxF = (uint32_t) _mm_extract_epi16(vidxCDEF, 6);
146 const __m128i vlC = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidxC)));
147 const __m128i vlE = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidxE)));
148 const __m128i vlD = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidxD)));
149 const __m128i vlCD = _mm_unpacklo_epi32(vlC, vlD);
150 const __m128i vlF = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + vidxF)));
151 const __m128i vlEF = _mm_unpacklo_epi32(vlE, vlF);
152 const __m128i vlCDEF = _mm_unpacklo_epi64(vlCD, vlEF);
153 #endif // XNN_ARCH_X86_64
154
155 vn0123 = _mm_sub_ps(vn0123, vmagic_bias);
156 __m128 vs0123 = _mm_castsi128_ps(_mm_add_epi32(vl0123, ven0123));
157 vn4567 = _mm_sub_ps(vn4567, vmagic_bias);
158 __m128 vs4567 = _mm_castsi128_ps(_mm_add_epi32(vl4567, ven4567));
159 vn89AB = _mm_sub_ps(vn89AB, vmagic_bias);
160 __m128 vs89AB = _mm_castsi128_ps(_mm_add_epi32(vl89AB, ven89AB));
161 vnCDEF = _mm_sub_ps(vnCDEF, vmagic_bias);
162 __m128 vsCDEF = _mm_castsi128_ps(_mm_add_epi32(vlCDEF, venCDEF));
163
164 __m128 vt0123 = _mm_add_ps(_mm_mul_ps(vn0123, vminus_ln2_hi), vz0123);
165 __m128 vt4567 = _mm_add_ps(_mm_mul_ps(vn4567, vminus_ln2_hi), vz4567);
166 __m128 vt89AB = _mm_add_ps(_mm_mul_ps(vn89AB, vminus_ln2_hi), vz89AB);
167 __m128 vtCDEF = _mm_add_ps(_mm_mul_ps(vnCDEF, vminus_ln2_hi), vzCDEF);
168
169 vt0123 = _mm_add_ps(_mm_mul_ps(vn0123, vminus_ln2_lo), vt0123);
170 vt4567 = _mm_add_ps(_mm_mul_ps(vn4567, vminus_ln2_lo), vt4567);
171 vt89AB = _mm_add_ps(_mm_mul_ps(vn89AB, vminus_ln2_lo), vt89AB);
172 vtCDEF = _mm_add_ps(_mm_mul_ps(vnCDEF, vminus_ln2_lo), vtCDEF);
173
174 __m128 vp0123 = _mm_add_ps(_mm_mul_ps(vc3, vt0123), vc2);
175 __m128 vp4567 = _mm_add_ps(_mm_mul_ps(vc3, vt4567), vc2);
176 __m128 vp89AB = _mm_add_ps(_mm_mul_ps(vc3, vt89AB), vc2);
177 __m128 vpCDEF = _mm_add_ps(_mm_mul_ps(vc3, vtCDEF), vc2);
178
179 vp0123 = _mm_mul_ps(vp0123, vt0123);
180 vp4567 = _mm_mul_ps(vp4567, vt4567);
181 vp89AB = _mm_mul_ps(vp89AB, vt89AB);
182 vpCDEF = _mm_mul_ps(vpCDEF, vtCDEF);
183
184 vt0123 = _mm_mul_ps(vt0123, vs0123);
185 vs0123 = _mm_sub_ps(vs0123, vone);
186 vt4567 = _mm_mul_ps(vt4567, vs4567);
187 vs4567 = _mm_sub_ps(vs4567, vone);
188 vt89AB = _mm_mul_ps(vt89AB, vs89AB);
189 vs89AB = _mm_sub_ps(vs89AB, vone);
190 vtCDEF = _mm_mul_ps(vtCDEF, vsCDEF);
191 vsCDEF = _mm_sub_ps(vsCDEF, vone);
192
193 vp0123 = _mm_add_ps(_mm_mul_ps(vp0123, vt0123), vt0123);
194 vp4567 = _mm_add_ps(_mm_mul_ps(vp4567, vt4567), vt4567);
195 vp89AB = _mm_add_ps(_mm_mul_ps(vp89AB, vt89AB), vt89AB);
196 vpCDEF = _mm_add_ps(_mm_mul_ps(vpCDEF, vtCDEF), vtCDEF);
197
198 const __m128 ve0123 = _mm_mul_ps(_mm_add_ps(vp0123, vs0123), valpha);
199 const __m128 ve4567 = _mm_mul_ps(_mm_add_ps(vp4567, vs4567), valpha);
200 const __m128 ve89AB = _mm_mul_ps(_mm_add_ps(vp89AB, vs89AB), valpha);
201 const __m128 veCDEF = _mm_mul_ps(_mm_add_ps(vpCDEF, vsCDEF), valpha);
202
203 const __m128 vm0123 = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vx0123)));
204 vx0123 = _mm_mul_ps(vx0123, vbeta);
205 const __m128 vm4567 = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vx4567)));
206 vx4567 = _mm_mul_ps(vx4567, vbeta);
207 const __m128 vm89AB = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vx89AB)));
208 vx89AB = _mm_mul_ps(vx89AB, vbeta);
209 const __m128 vmCDEF = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vxCDEF)));
210 vxCDEF = _mm_mul_ps(vxCDEF, vbeta);
211
212 const __m128 vy0123 = _mm_or_ps(_mm_and_ps(ve0123, vm0123), _mm_andnot_ps(vm0123, vx0123));
213 const __m128 vy4567 = _mm_or_ps(_mm_and_ps(ve4567, vm4567), _mm_andnot_ps(vm4567, vx4567));
214 const __m128 vy89AB = _mm_or_ps(_mm_and_ps(ve89AB, vm89AB), _mm_andnot_ps(vm89AB, vx89AB));
215 const __m128 vyCDEF = _mm_or_ps(_mm_and_ps(veCDEF, vmCDEF), _mm_andnot_ps(vmCDEF, vxCDEF));
216
217 _mm_storeu_ps(y, vy0123);
218 _mm_storeu_ps(y + 4, vy4567);
219 _mm_storeu_ps(y + 8, vy89AB);
220 _mm_storeu_ps(y + 12, vyCDEF);
221 y += 16;
222 }
223 for (; n >= 4 * sizeof(float); n -= 4 * sizeof(float)) {
224 __m128 vx = _mm_loadu_ps(x);
225 x += 4;
226
227 const __m128 vz = _mm_max_ps(vsat_cutoff, _mm_mul_ps(vx, vprescale));
228
229 __m128 vn = _mm_add_ps(_mm_mul_ps(vz, vlog2e), vmagic_bias);
230
231 const __m128i ven = _mm_slli_epi32(_mm_castps_si128(vn), 19);
232 const __m128i vidx = _mm_slli_epi32(_mm_and_si128(_mm_castps_si128(vn), vindex_mask), 2);
233 #if XNN_ARCH_X86_64
234 const uint64_t vidx_lo = (uint64_t) _mm_cvtsi128_si64(vidx);
235 const uint64_t vidx_hi = (uint64_t) _mm_cvtsi128_si64(_mm_unpackhi_epi64(vidx, vidx));
236 const __m128i vl_ll = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_lo)));
237 const __m128i vl_hl = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_hi)));
238 const __m128i vl_lh = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_lo >> 32))));
239 const __m128i vl_lo = _mm_unpacklo_epi32(vl_ll, vl_lh);
240 const __m128i vl_hh = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_hi >> 32))));
241 const __m128i vl_hi = _mm_unpacklo_epi32(vl_hl, vl_hh);
242 #else // !XNN_ARCH_X86_64
243 const __m128i vl_ll = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) _mm_cvtsi128_si32(vidx))));
244 const __m128i vl_hl = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) _mm_extract_epi16(vidx, 4))));
245 const __m128i vl_lh = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) _mm_extract_epi16(vidx, 2))));
246 const __m128i vl_lo = _mm_unpacklo_epi32(vl_ll, vl_lh);
247 const __m128i vl_hh = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) _mm_extract_epi16(vidx, 6))));
248 const __m128i vl_hi = _mm_unpacklo_epi32(vl_hl, vl_hh);
249 #endif // XNN_ARCH_X86_64
250 const __m128i vl = _mm_unpacklo_epi64(vl_lo, vl_hi);
251 __m128 vs = _mm_castsi128_ps(_mm_add_epi32(vl, ven));
252 vn = _mm_sub_ps(vn, vmagic_bias);
253
254 __m128 vt = _mm_add_ps(_mm_mul_ps(vn, vminus_ln2_hi), vz);
255 vt = _mm_add_ps(_mm_mul_ps(vn, vminus_ln2_lo), vt);
256
257 __m128 vp = _mm_add_ps(_mm_mul_ps(vc3, vt), vc2);
258 vp = _mm_mul_ps(vp, vt);
259
260 vt = _mm_mul_ps(vt, vs);
261 vs = _mm_sub_ps(vs, vone);
262 vp = _mm_add_ps(_mm_mul_ps(vp, vt), vt);
263 const __m128 ve = _mm_mul_ps(_mm_add_ps(vp, vs), valpha);
264
265 const __m128 vm = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vx)));
266 vx = _mm_mul_ps(vx, vbeta);
267 const __m128 vy = _mm_or_ps(_mm_and_ps(ve, vm), _mm_andnot_ps(vm, vx));
268
269 _mm_storeu_ps(y, vy);
270 y += 4;
271 }
272 if XNN_UNLIKELY(n != 0) {
273 __m128 vx = _mm_loadu_ps(x);
274
275 const __m128 vz = _mm_max_ps(vsat_cutoff, _mm_mul_ps(vx, vprescale));
276
277 __m128 vn = _mm_add_ps(_mm_mul_ps(vz, vlog2e), vmagic_bias);
278
279 const __m128i ven = _mm_slli_epi32(_mm_castps_si128(vn), 19);
280 const __m128i vidx = _mm_slli_epi32(_mm_and_si128(_mm_castps_si128(vn), vindex_mask), 2);
281 #if XNN_ARCH_X86_64
282 const uint64_t vidx_lo = (uint64_t) _mm_cvtsi128_si64(vidx);
283 const uint64_t vidx_hi = (uint64_t) _mm_cvtsi128_si64(_mm_unpackhi_epi64(vidx, vidx));
284 const __m128i vl_ll = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_lo)));
285 const __m128i vl_hl = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) vidx_hi)));
286 const __m128i vl_lh = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_lo >> 32))));
287 const __m128i vl_lo = _mm_unpacklo_epi32(vl_ll, vl_lh);
288 const __m128i vl_hh = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) (vidx_hi >> 32))));
289 const __m128i vl_hi = _mm_unpacklo_epi32(vl_hl, vl_hh);
290 #else // !XNN_ARCH_X86_64
291 const __m128i vl_ll = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) _mm_cvtsi128_si32(vidx))));
292 const __m128i vl_hl = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) _mm_extract_epi16(vidx, 4))));
293 const __m128i vl_lh = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) _mm_extract_epi16(vidx, 2))));
294 const __m128i vl_lo = _mm_unpacklo_epi32(vl_ll, vl_lh);
295 const __m128i vl_hh = _mm_cvtsi32_si128(*((const int*) ((uintptr_t) xnn_table_exp2minus_k_over_16 + (uint32_t) _mm_extract_epi16(vidx, 6))));
296 const __m128i vl_hi = _mm_unpacklo_epi32(vl_hl, vl_hh);
297 #endif // XNN_ARCH_X86_64
298 const __m128i vl = _mm_unpacklo_epi64(vl_lo, vl_hi);
299 __m128 vs = _mm_castsi128_ps(_mm_add_epi32(vl, ven));
300 vn = _mm_sub_ps(vn, vmagic_bias);
301
302 __m128 vt = _mm_add_ps(_mm_mul_ps(vn, vminus_ln2_hi), vz);
303 vt = _mm_add_ps(_mm_mul_ps(vn, vminus_ln2_lo), vt);
304
305 __m128 vp = _mm_add_ps(_mm_mul_ps(vc3, vt), vc2);
306 vp = _mm_mul_ps(vp, vt);
307
308 vt = _mm_mul_ps(vt, vs);
309 vs = _mm_sub_ps(vs, vone);
310 vp = _mm_add_ps(_mm_mul_ps(vp, vt), vt);
311 const __m128 ve = _mm_mul_ps(_mm_add_ps(vp, vs), valpha);
312
313 const __m128 vm = _mm_castsi128_ps(_mm_cmpgt_epi32(_mm_setzero_si128(), _mm_castps_si128(vx)));
314 vx = _mm_mul_ps(vx, vbeta);
315 __m128 vy = _mm_or_ps(_mm_and_ps(ve, vm), _mm_andnot_ps(vm, vx));
316
317 if (n & (2 * sizeof(float))) {
318 _mm_storel_pi((__m64*) y, vy);
319 vy = _mm_movehl_ps(vy, vy);
320 y += 2;
321 }
322 if (n & (1 * sizeof(float))) {
323 _mm_store_ss(y, vy);
324 }
325 }
326 }
327