1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-igemm/c8-neon-mull.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2021 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 <arm_neon.h>
13
14 #include <xnnpack/igemm.h>
15 #include <xnnpack/math.h>
16
17
xnn_qs8_igemm_minmax_rndnu_ukernel_3x8c8__neon_mlal(size_t mr,size_t nc,size_t kc,size_t ks,const int8_t ** restrict a,const void * restrict w,int8_t * restrict c,size_t cm_stride,size_t cn_stride,size_t a_offset,const int8_t * zero,const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_qs8_igemm_minmax_rndnu_ukernel_3x8c8__neon_mlal(
19 size_t mr,
20 size_t nc,
21 size_t kc,
22 size_t ks,
23 const int8_t** restrict a,
24 const void* restrict w,
25 int8_t* restrict c,
26 size_t cm_stride,
27 size_t cn_stride,
28 size_t a_offset,
29 const int8_t* zero,
30 const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
31 {
32 assert(mr != 0);
33 assert(mr <= 3);
34 assert(nc != 0);
35 assert(kc != 0);
36 assert(ks != 0);
37 assert(ks % (3 * sizeof(void*)) == 0);
38 assert(a_offset % sizeof(int8_t) == 0);
39 assert(a != NULL);
40 assert(w != NULL);
41 assert(c != NULL);
42
43 kc = round_up_po2(kc, 8 * sizeof(int8_t));
44 int8_t* c0 = c;
45 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
46 if XNN_UNPREDICTABLE(mr < 2) {
47 c1 = c0;
48 }
49 int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
50 if XNN_UNPREDICTABLE(mr <= 2) {
51 c2 = c1;
52 }
53
54 do {
55 int32x4_t vacc0x0 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
56 int32x4_t vacc0x1 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
57 int32x4_t vacc0x2 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
58 int32x4_t vacc0x3 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
59 int32x4_t vacc0x4 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
60 int32x4_t vacc0x5 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
61 int32x4_t vacc0x6 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
62 int32x4_t vacc0x7 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
63 int32x4_t vacc1x0 = vacc0x0;
64 int32x4_t vacc1x1 = vacc0x1;
65 int32x4_t vacc1x2 = vacc0x2;
66 int32x4_t vacc1x3 = vacc0x3;
67 int32x4_t vacc1x4 = vacc0x4;
68 int32x4_t vacc1x5 = vacc0x5;
69 int32x4_t vacc1x6 = vacc0x6;
70 int32x4_t vacc1x7 = vacc0x7;
71 int32x4_t vacc2x0 = vacc0x0;
72 int32x4_t vacc2x1 = vacc0x1;
73 int32x4_t vacc2x2 = vacc0x2;
74 int32x4_t vacc2x3 = vacc0x3;
75 int32x4_t vacc2x4 = vacc0x4;
76 int32x4_t vacc2x5 = vacc0x5;
77 int32x4_t vacc2x6 = vacc0x6;
78 int32x4_t vacc2x7 = vacc0x7;
79
80 size_t p = ks;
81 do {
82 const int8_t* restrict a0 = a[0];
83 if XNN_UNPREDICTABLE(a0 != zero) {
84 a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
85 }
86 const int8_t* restrict a1 = a[1];
87 if XNN_UNPREDICTABLE(a1 != zero) {
88 a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);
89 }
90 const int8_t* restrict a2 = a[2];
91 if XNN_UNPREDICTABLE(a2 != zero) {
92 a2 = (const int8_t*) ((uintptr_t) a2 + a_offset);
93 }
94 a += 3;
95
96 size_t k = kc;
97 // 2x partial unrolled loop to load 16 bytes at a time using MLA.
98 while (k >= 16 * sizeof(int8_t)) {
99 const int8x8_t va0x0 = vld1_s8(a0); a0 += 8;
100 const int8x8_t va0x1 = vld1_s8(a0); a0 += 8;
101 const int8x8_t va1x0 = vld1_s8(a1); a1 += 8;
102 const int8x8_t va1x1 = vld1_s8(a1); a1 += 8;
103 const int8x8_t va2x0 = vld1_s8(a2); a2 += 8;
104 const int8x8_t va2x1 = vld1_s8(a2); a2 += 8;
105
106 const int8x8_t vb0x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
107 const int8x8_t vb1x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
108 const int8x8_t vb2x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
109 const int8x8_t vb3x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
110 const int8x8_t vb4x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
111 const int8x8_t vb5x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
112 const int8x8_t vb6x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
113 const int8x8_t vb7x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
114
115 const int8x8_t vb0x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
116 int16x8_t vprod0x0 = vmull_s8(vb0x0, va0x0);
117 int16x8_t vprod1x0 = vmull_s8(vb0x0, va1x0);
118 int16x8_t vprod2x0 = vmull_s8(vb0x0, va2x0);
119 vprod0x0 = vmlal_s8(vprod0x0, vb0x1, va0x1);
120 vprod1x0 = vmlal_s8(vprod1x0, vb0x1, va1x1);
121 vprod2x0 = vmlal_s8(vprod2x0, vb0x1, va2x1);
122 vacc0x0 = vpadalq_s16(vacc0x0, vprod0x0);
123 vacc1x0 = vpadalq_s16(vacc1x0, vprod1x0);
124 vacc2x0 = vpadalq_s16(vacc2x0, vprod2x0);
125 const int8x8_t vb1x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
126 int16x8_t vprod0x1 = vmull_s8(vb1x0, va0x0);
127 int16x8_t vprod1x1 = vmull_s8(vb1x0, va1x0);
128 int16x8_t vprod2x1 = vmull_s8(vb1x0, va2x0);
129 vprod0x1 = vmlal_s8(vprod0x1, vb1x1, va0x1);
130 vprod1x1 = vmlal_s8(vprod1x1, vb1x1, va1x1);
131 vprod2x1 = vmlal_s8(vprod2x1, vb1x1, va2x1);
132 vacc0x1 = vpadalq_s16(vacc0x1, vprod0x1);
133 vacc1x1 = vpadalq_s16(vacc1x1, vprod1x1);
134 vacc2x1 = vpadalq_s16(vacc2x1, vprod2x1);
135 const int8x8_t vb2x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
136 int16x8_t vprod0x2 = vmull_s8(vb2x0, va0x0);
137 int16x8_t vprod1x2 = vmull_s8(vb2x0, va1x0);
138 int16x8_t vprod2x2 = vmull_s8(vb2x0, va2x0);
139 vprod0x2 = vmlal_s8(vprod0x2, vb2x1, va0x1);
140 vprod1x2 = vmlal_s8(vprod1x2, vb2x1, va1x1);
141 vprod2x2 = vmlal_s8(vprod2x2, vb2x1, va2x1);
142 vacc0x2 = vpadalq_s16(vacc0x2, vprod0x2);
143 vacc1x2 = vpadalq_s16(vacc1x2, vprod1x2);
144 vacc2x2 = vpadalq_s16(vacc2x2, vprod2x2);
145 const int8x8_t vb3x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
146 int16x8_t vprod0x3 = vmull_s8(vb3x0, va0x0);
147 int16x8_t vprod1x3 = vmull_s8(vb3x0, va1x0);
148 int16x8_t vprod2x3 = vmull_s8(vb3x0, va2x0);
149 vprod0x3 = vmlal_s8(vprod0x3, vb3x1, va0x1);
150 vprod1x3 = vmlal_s8(vprod1x3, vb3x1, va1x1);
151 vprod2x3 = vmlal_s8(vprod2x3, vb3x1, va2x1);
152 vacc0x3 = vpadalq_s16(vacc0x3, vprod0x3);
153 vacc1x3 = vpadalq_s16(vacc1x3, vprod1x3);
154 vacc2x3 = vpadalq_s16(vacc2x3, vprod2x3);
155 const int8x8_t vb4x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
156 int16x8_t vprod0x4 = vmull_s8(vb4x0, va0x0);
157 int16x8_t vprod1x4 = vmull_s8(vb4x0, va1x0);
158 int16x8_t vprod2x4 = vmull_s8(vb4x0, va2x0);
159 vprod0x4 = vmlal_s8(vprod0x4, vb4x1, va0x1);
160 vprod1x4 = vmlal_s8(vprod1x4, vb4x1, va1x1);
161 vprod2x4 = vmlal_s8(vprod2x4, vb4x1, va2x1);
162 vacc0x4 = vpadalq_s16(vacc0x4, vprod0x4);
163 vacc1x4 = vpadalq_s16(vacc1x4, vprod1x4);
164 vacc2x4 = vpadalq_s16(vacc2x4, vprod2x4);
165 const int8x8_t vb5x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
166 int16x8_t vprod0x5 = vmull_s8(vb5x0, va0x0);
167 int16x8_t vprod1x5 = vmull_s8(vb5x0, va1x0);
168 int16x8_t vprod2x5 = vmull_s8(vb5x0, va2x0);
169 vprod0x5 = vmlal_s8(vprod0x5, vb5x1, va0x1);
170 vprod1x5 = vmlal_s8(vprod1x5, vb5x1, va1x1);
171 vprod2x5 = vmlal_s8(vprod2x5, vb5x1, va2x1);
172 vacc0x5 = vpadalq_s16(vacc0x5, vprod0x5);
173 vacc1x5 = vpadalq_s16(vacc1x5, vprod1x5);
174 vacc2x5 = vpadalq_s16(vacc2x5, vprod2x5);
175 const int8x8_t vb6x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
176 int16x8_t vprod0x6 = vmull_s8(vb6x0, va0x0);
177 int16x8_t vprod1x6 = vmull_s8(vb6x0, va1x0);
178 int16x8_t vprod2x6 = vmull_s8(vb6x0, va2x0);
179 vprod0x6 = vmlal_s8(vprod0x6, vb6x1, va0x1);
180 vprod1x6 = vmlal_s8(vprod1x6, vb6x1, va1x1);
181 vprod2x6 = vmlal_s8(vprod2x6, vb6x1, va2x1);
182 vacc0x6 = vpadalq_s16(vacc0x6, vprod0x6);
183 vacc1x6 = vpadalq_s16(vacc1x6, vprod1x6);
184 vacc2x6 = vpadalq_s16(vacc2x6, vprod2x6);
185 const int8x8_t vb7x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
186 int16x8_t vprod0x7 = vmull_s8(vb7x0, va0x0);
187 int16x8_t vprod1x7 = vmull_s8(vb7x0, va1x0);
188 int16x8_t vprod2x7 = vmull_s8(vb7x0, va2x0);
189 vprod0x7 = vmlal_s8(vprod0x7, vb7x1, va0x1);
190 vprod1x7 = vmlal_s8(vprod1x7, vb7x1, va1x1);
191 vprod2x7 = vmlal_s8(vprod2x7, vb7x1, va2x1);
192 vacc0x7 = vpadalq_s16(vacc0x7, vprod0x7);
193 vacc1x7 = vpadalq_s16(vacc1x7, vprod1x7);
194 vacc2x7 = vpadalq_s16(vacc2x7, vprod2x7);
195
196 k -= 16 * sizeof(int8_t);
197 }
198
199 // Handle 8 bytes at a time using MUL.
200 if (k != 0) {
201 const int8x8_t va0 = vld1_s8(a0); a0 += 8;
202 const int8x8_t va1 = vld1_s8(a1); a1 += 8;
203 const int8x8_t va2 = vld1_s8(a2); a2 += 8;
204
205 const int8x8_t vb0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
206 const int16x8_t vprod0x0 = vmull_s8(vb0, va0);
207 const int16x8_t vprod1x0 = vmull_s8(vb0, va1);
208 const int16x8_t vprod2x0 = vmull_s8(vb0, va2);
209 vacc0x0 = vpadalq_s16(vacc0x0, vprod0x0);
210 vacc1x0 = vpadalq_s16(vacc1x0, vprod1x0);
211 vacc2x0 = vpadalq_s16(vacc2x0, vprod2x0);
212 const int8x8_t vb1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
213 const int16x8_t vprod0x1 = vmull_s8(vb1, va0);
214 const int16x8_t vprod1x1 = vmull_s8(vb1, va1);
215 const int16x8_t vprod2x1 = vmull_s8(vb1, va2);
216 vacc0x1 = vpadalq_s16(vacc0x1, vprod0x1);
217 vacc1x1 = vpadalq_s16(vacc1x1, vprod1x1);
218 vacc2x1 = vpadalq_s16(vacc2x1, vprod2x1);
219 const int8x8_t vb2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
220 const int16x8_t vprod0x2 = vmull_s8(vb2, va0);
221 const int16x8_t vprod1x2 = vmull_s8(vb2, va1);
222 const int16x8_t vprod2x2 = vmull_s8(vb2, va2);
223 vacc0x2 = vpadalq_s16(vacc0x2, vprod0x2);
224 vacc1x2 = vpadalq_s16(vacc1x2, vprod1x2);
225 vacc2x2 = vpadalq_s16(vacc2x2, vprod2x2);
226 const int8x8_t vb3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
227 const int16x8_t vprod0x3 = vmull_s8(vb3, va0);
228 const int16x8_t vprod1x3 = vmull_s8(vb3, va1);
229 const int16x8_t vprod2x3 = vmull_s8(vb3, va2);
230 vacc0x3 = vpadalq_s16(vacc0x3, vprod0x3);
231 vacc1x3 = vpadalq_s16(vacc1x3, vprod1x3);
232 vacc2x3 = vpadalq_s16(vacc2x3, vprod2x3);
233 const int8x8_t vb4 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
234 const int16x8_t vprod0x4 = vmull_s8(vb4, va0);
235 const int16x8_t vprod1x4 = vmull_s8(vb4, va1);
236 const int16x8_t vprod2x4 = vmull_s8(vb4, va2);
237 vacc0x4 = vpadalq_s16(vacc0x4, vprod0x4);
238 vacc1x4 = vpadalq_s16(vacc1x4, vprod1x4);
239 vacc2x4 = vpadalq_s16(vacc2x4, vprod2x4);
240 const int8x8_t vb5 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
241 const int16x8_t vprod0x5 = vmull_s8(vb5, va0);
242 const int16x8_t vprod1x5 = vmull_s8(vb5, va1);
243 const int16x8_t vprod2x5 = vmull_s8(vb5, va2);
244 vacc0x5 = vpadalq_s16(vacc0x5, vprod0x5);
245 vacc1x5 = vpadalq_s16(vacc1x5, vprod1x5);
246 vacc2x5 = vpadalq_s16(vacc2x5, vprod2x5);
247 const int8x8_t vb6 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
248 const int16x8_t vprod0x6 = vmull_s8(vb6, va0);
249 const int16x8_t vprod1x6 = vmull_s8(vb6, va1);
250 const int16x8_t vprod2x6 = vmull_s8(vb6, va2);
251 vacc0x6 = vpadalq_s16(vacc0x6, vprod0x6);
252 vacc1x6 = vpadalq_s16(vacc1x6, vprod1x6);
253 vacc2x6 = vpadalq_s16(vacc2x6, vprod2x6);
254 const int8x8_t vb7 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
255 const int16x8_t vprod0x7 = vmull_s8(vb7, va0);
256 const int16x8_t vprod1x7 = vmull_s8(vb7, va1);
257 const int16x8_t vprod2x7 = vmull_s8(vb7, va2);
258 vacc0x7 = vpadalq_s16(vacc0x7, vprod0x7);
259 vacc1x7 = vpadalq_s16(vacc1x7, vprod1x7);
260 vacc2x7 = vpadalq_s16(vacc2x7, vprod2x7);
261
262 k -= 8 * sizeof(int8_t);
263 }
264
265 p -= 3 * sizeof(void*);
266 } while (p != 0);
267
268 #if XNN_ARCH_ARM64
269 const int32x4_t vsum0x01 = vpaddq_s32(vacc0x0, vacc0x1);
270 const int32x4_t vsum0x23 = vpaddq_s32(vacc0x2, vacc0x3);
271 const int32x4_t vsum0x45 = vpaddq_s32(vacc0x4, vacc0x5);
272 const int32x4_t vsum0x67 = vpaddq_s32(vacc0x6, vacc0x7);
273 const int32x4_t vsum1x01 = vpaddq_s32(vacc1x0, vacc1x1);
274 const int32x4_t vsum1x23 = vpaddq_s32(vacc1x2, vacc1x3);
275 const int32x4_t vsum1x45 = vpaddq_s32(vacc1x4, vacc1x5);
276 const int32x4_t vsum1x67 = vpaddq_s32(vacc1x6, vacc1x7);
277 const int32x4_t vsum2x01 = vpaddq_s32(vacc2x0, vacc2x1);
278 const int32x4_t vsum2x23 = vpaddq_s32(vacc2x2, vacc2x3);
279 const int32x4_t vsum2x45 = vpaddq_s32(vacc2x4, vacc2x5);
280 const int32x4_t vsum2x67 = vpaddq_s32(vacc2x6, vacc2x7);
281
282 int32x4_t vacc0x0123 = vpaddq_s32(vsum0x01, vsum0x23);
283 int32x4_t vacc0x4567 = vpaddq_s32(vsum0x45, vsum0x67);
284 int32x4_t vacc1x0123 = vpaddq_s32(vsum1x01, vsum1x23);
285 int32x4_t vacc1x4567 = vpaddq_s32(vsum1x45, vsum1x67);
286 int32x4_t vacc2x0123 = vpaddq_s32(vsum2x01, vsum2x23);
287 int32x4_t vacc2x4567 = vpaddq_s32(vsum2x45, vsum2x67);
288 #else
289 const int32x2_t vpsum0x0 = vadd_s32(vget_low_s32(vacc0x0), vget_high_s32(vacc0x0));
290 const int32x2_t vpsum0x1 = vadd_s32(vget_low_s32(vacc0x1), vget_high_s32(vacc0x1));
291 const int32x2_t vpsum0x2 = vadd_s32(vget_low_s32(vacc0x2), vget_high_s32(vacc0x2));
292 const int32x2_t vpsum0x3 = vadd_s32(vget_low_s32(vacc0x3), vget_high_s32(vacc0x3));
293 const int32x2_t vsum0x01 = vpadd_s32(vpsum0x0, vpsum0x1);
294 const int32x2_t vsum0x23 = vpadd_s32(vpsum0x2, vpsum0x3);
295 int32x4_t vacc0x0123 = vcombine_s32(vsum0x01, vsum0x23 );
296 const int32x2_t vpsum0x4 = vadd_s32(vget_low_s32(vacc0x4), vget_high_s32(vacc0x4));
297 const int32x2_t vpsum0x5 = vadd_s32(vget_low_s32(vacc0x5), vget_high_s32(vacc0x5));
298 const int32x2_t vpsum0x6 = vadd_s32(vget_low_s32(vacc0x6), vget_high_s32(vacc0x6));
299 const int32x2_t vpsum0x7 = vadd_s32(vget_low_s32(vacc0x7), vget_high_s32(vacc0x7));
300 const int32x2_t vsum0x45 = vpadd_s32(vpsum0x4, vpsum0x5);
301 const int32x2_t vsum0x67 = vpadd_s32(vpsum0x6, vpsum0x7);
302 int32x4_t vacc0x4567 = vcombine_s32(vsum0x45, vsum0x67 );
303 const int32x2_t vpsum1x0 = vadd_s32(vget_low_s32(vacc1x0), vget_high_s32(vacc1x0));
304 const int32x2_t vpsum1x1 = vadd_s32(vget_low_s32(vacc1x1), vget_high_s32(vacc1x1));
305 const int32x2_t vpsum1x2 = vadd_s32(vget_low_s32(vacc1x2), vget_high_s32(vacc1x2));
306 const int32x2_t vpsum1x3 = vadd_s32(vget_low_s32(vacc1x3), vget_high_s32(vacc1x3));
307 const int32x2_t vsum1x01 = vpadd_s32(vpsum1x0, vpsum1x1);
308 const int32x2_t vsum1x23 = vpadd_s32(vpsum1x2, vpsum1x3);
309 int32x4_t vacc1x0123 = vcombine_s32(vsum1x01, vsum1x23 );
310 const int32x2_t vpsum1x4 = vadd_s32(vget_low_s32(vacc1x4), vget_high_s32(vacc1x4));
311 const int32x2_t vpsum1x5 = vadd_s32(vget_low_s32(vacc1x5), vget_high_s32(vacc1x5));
312 const int32x2_t vpsum1x6 = vadd_s32(vget_low_s32(vacc1x6), vget_high_s32(vacc1x6));
313 const int32x2_t vpsum1x7 = vadd_s32(vget_low_s32(vacc1x7), vget_high_s32(vacc1x7));
314 const int32x2_t vsum1x45 = vpadd_s32(vpsum1x4, vpsum1x5);
315 const int32x2_t vsum1x67 = vpadd_s32(vpsum1x6, vpsum1x7);
316 int32x4_t vacc1x4567 = vcombine_s32(vsum1x45, vsum1x67 );
317 const int32x2_t vpsum2x0 = vadd_s32(vget_low_s32(vacc2x0), vget_high_s32(vacc2x0));
318 const int32x2_t vpsum2x1 = vadd_s32(vget_low_s32(vacc2x1), vget_high_s32(vacc2x1));
319 const int32x2_t vpsum2x2 = vadd_s32(vget_low_s32(vacc2x2), vget_high_s32(vacc2x2));
320 const int32x2_t vpsum2x3 = vadd_s32(vget_low_s32(vacc2x3), vget_high_s32(vacc2x3));
321 const int32x2_t vsum2x01 = vpadd_s32(vpsum2x0, vpsum2x1);
322 const int32x2_t vsum2x23 = vpadd_s32(vpsum2x2, vpsum2x3);
323 int32x4_t vacc2x0123 = vcombine_s32(vsum2x01, vsum2x23 );
324 const int32x2_t vpsum2x4 = vadd_s32(vget_low_s32(vacc2x4), vget_high_s32(vacc2x4));
325 const int32x2_t vpsum2x5 = vadd_s32(vget_low_s32(vacc2x5), vget_high_s32(vacc2x5));
326 const int32x2_t vpsum2x6 = vadd_s32(vget_low_s32(vacc2x6), vget_high_s32(vacc2x6));
327 const int32x2_t vpsum2x7 = vadd_s32(vget_low_s32(vacc2x7), vget_high_s32(vacc2x7));
328 const int32x2_t vsum2x45 = vpadd_s32(vpsum2x4, vpsum2x5);
329 const int32x2_t vsum2x67 = vpadd_s32(vpsum2x6, vpsum2x7);
330 int32x4_t vacc2x4567 = vcombine_s32(vsum2x45, vsum2x67 );
331 #endif
332
333 const int32x4_t vright_pre_shift = vld1q_dup_s32(¶ms->rndnu_neon.right_pre_shift);
334 const int32x4_t vmultiplier = vld1q_dup_s32(¶ms->rndnu_neon.multiplier);
335 const int32x4_t vright_post_shift = vld1q_dup_s32(¶ms->rndnu_neon.right_post_shift);
336
337 vacc0x0123 = vqshlq_s32(vacc0x0123, vright_pre_shift);
338 vacc0x4567 = vqshlq_s32(vacc0x4567, vright_pre_shift);
339 vacc1x0123 = vqshlq_s32(vacc1x0123, vright_pre_shift);
340 vacc1x4567 = vqshlq_s32(vacc1x4567, vright_pre_shift);
341 vacc2x0123 = vqshlq_s32(vacc2x0123, vright_pre_shift);
342 vacc2x4567 = vqshlq_s32(vacc2x4567, vright_pre_shift);
343
344 vacc0x0123 = vqdmulhq_s32(vacc0x0123, vmultiplier);
345 vacc0x4567 = vqdmulhq_s32(vacc0x4567, vmultiplier);
346 vacc1x0123 = vqdmulhq_s32(vacc1x0123, vmultiplier);
347 vacc1x4567 = vqdmulhq_s32(vacc1x4567, vmultiplier);
348 vacc2x0123 = vqdmulhq_s32(vacc2x0123, vmultiplier);
349 vacc2x4567 = vqdmulhq_s32(vacc2x4567, vmultiplier);
350
351 vacc0x0123 = vrshlq_s32(vacc0x0123, vright_post_shift);
352 vacc0x4567 = vrshlq_s32(vacc0x4567, vright_post_shift);
353 vacc1x0123 = vrshlq_s32(vacc1x0123, vright_post_shift);
354 vacc1x4567 = vrshlq_s32(vacc1x4567, vright_post_shift);
355 vacc2x0123 = vrshlq_s32(vacc2x0123, vright_post_shift);
356 vacc2x4567 = vrshlq_s32(vacc2x4567, vright_post_shift);
357
358 const int16x8_t voutput_zero_point = vld1q_dup_s16(¶ms->rndnu_neon.output_zero_point);
359 #if XNN_ARCH_ARM64
360 int16x8_t vacc0x01234567 = vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567);
361 int16x8_t vacc1x01234567 = vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567);
362 int16x8_t vacc2x01234567 = vqmovn_high_s32(vqmovn_s32(vacc2x0123), vacc2x4567);
363
364 vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
365 vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
366 vacc2x01234567 = vqaddq_s16(vacc2x01234567, voutput_zero_point);
367
368 int8x16_t vout0x01234567_1x01234567 = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc1x01234567);
369 int8x8_t vout2x01234567 = vqmovn_s16(vacc2x01234567);
370 #else
371 int16x8_t vacc0x01234567 = vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567));
372 int16x8_t vacc1x01234567 = vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567));
373 int16x8_t vacc2x01234567 = vcombine_s16(vqmovn_s32(vacc2x0123), vqmovn_s32(vacc2x4567));
374
375 vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
376 vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
377 vacc2x01234567 = vqaddq_s16(vacc2x01234567, voutput_zero_point);
378
379 int8x16_t vout0x01234567_1x01234567 = vcombine_s8(vqmovn_s16(vacc0x01234567), vqmovn_s16(vacc1x01234567));
380 int8x8_t vout2x01234567 = vqmovn_s16(vacc2x01234567);
381 #endif
382
383 const int8x16_t voutput_min = vld1q_dup_s8(¶ms->rndnu_neon.output_min);
384 vout0x01234567_1x01234567 = vmaxq_s8(vout0x01234567_1x01234567, voutput_min);
385 vout2x01234567 = vmax_s8(vout2x01234567, vget_low_s8(voutput_min));
386
387 const int8x16_t voutput_max = vld1q_dup_s8(¶ms->rndnu_neon.output_max);
388 vout0x01234567_1x01234567 = vminq_s8(vout0x01234567_1x01234567, voutput_max);
389 vout2x01234567 = vmin_s8(vout2x01234567, vget_low_s8(voutput_max));
390
391 if (nc >= 8) {
392 vst1_s8(c2 + 0, vout2x01234567);
393 vst1_s8(c1 + 0, vget_high_s8(vout0x01234567_1x01234567));
394 vst1_s8(c0 + 0, vget_low_s8(vout0x01234567_1x01234567));
395
396 c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
397 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
398 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
399
400 a = (const int8_t**restrict) ((uintptr_t) a - ks);
401
402 nc -= 8;
403 } else {
404 if (nc & 4) {
405 vst1_lane_u32((void*) c2, vreinterpret_u32_s8(vout2x01234567), 0); c2 += 4;
406 vst1q_lane_u32((void*) c1, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
407 vst1q_lane_u32((void*) c0, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
408 vout2x01234567 = vext_s8(vout2x01234567, vout2x01234567, 4);
409 vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 4);
410 }
411 if (nc & 2) {
412 vst1_lane_u16((void*) c2, vreinterpret_u16_s8(vout2x01234567), 0); c2 += 2;
413 vst1q_lane_u16((void*) c1, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
414 vst1q_lane_u16((void*) c0, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
415 vout2x01234567 = vext_s8(vout2x01234567, vout2x01234567, 2);
416 vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 2);
417 }
418 if (nc & 1) {
419 vst1_lane_s8(c2, vout2x01234567, 0);
420 vst1q_lane_s8(c1, vout0x01234567_1x01234567, 8);
421 vst1q_lane_s8(c0, vout0x01234567_1x01234567, 0);
422 }
423
424 nc = 0;
425 }
426 } while (nc != 0);
427 }
428