1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-gemm/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/gemm.h>
15 #include <xnnpack/math.h>
16
17
xnn_qs8_gemm_minmax_rndnu_ukernel_3x8c8__neon_mlal(size_t mr,size_t nc,size_t kc,const int8_t * restrict a,size_t a_stride,const void * restrict w,int8_t * restrict c,size_t cm_stride,size_t cn_stride,const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_qs8_gemm_minmax_rndnu_ukernel_3x8c8__neon_mlal(
19 size_t mr,
20 size_t nc,
21 size_t kc,
22 const int8_t* restrict a,
23 size_t a_stride,
24 const void* restrict w,
25 int8_t* restrict c,
26 size_t cm_stride,
27 size_t cn_stride,
28 const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
29 {
30 assert(mr != 0);
31 assert(mr <= 3);
32 assert(nc != 0);
33 assert(kc != 0);
34 assert(kc % sizeof(int8_t) == 0);
35 assert(a != NULL);
36 assert(w != NULL);
37 assert(c != NULL);
38
39 kc = round_up_po2(kc, 8 * sizeof(int8_t));
40 const int8_t* a0 = a;
41 int8_t* c0 = c;
42 const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
43 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
44 if XNN_UNPREDICTABLE(mr < 2) {
45 a1 = a0;
46 c1 = c0;
47 }
48 const int8_t* a2 = (const int8_t*) ((uintptr_t) a1 + a_stride);
49 int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
50 if XNN_UNPREDICTABLE(mr <= 2) {
51 a2 = a1;
52 c2 = c1;
53 }
54
55 do {
56 int32x4_t vacc0x0 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
57 int32x4_t vacc0x1 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
58 int32x4_t vacc0x2 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
59 int32x4_t vacc0x3 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
60 int32x4_t vacc0x4 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
61 int32x4_t vacc0x5 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
62 int32x4_t vacc0x6 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
63 int32x4_t vacc0x7 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
64 int32x4_t vacc1x0 = vacc0x0;
65 int32x4_t vacc1x1 = vacc0x1;
66 int32x4_t vacc1x2 = vacc0x2;
67 int32x4_t vacc1x3 = vacc0x3;
68 int32x4_t vacc1x4 = vacc0x4;
69 int32x4_t vacc1x5 = vacc0x5;
70 int32x4_t vacc1x6 = vacc0x6;
71 int32x4_t vacc1x7 = vacc0x7;
72 int32x4_t vacc2x0 = vacc0x0;
73 int32x4_t vacc2x1 = vacc0x1;
74 int32x4_t vacc2x2 = vacc0x2;
75 int32x4_t vacc2x3 = vacc0x3;
76 int32x4_t vacc2x4 = vacc0x4;
77 int32x4_t vacc2x5 = vacc0x5;
78 int32x4_t vacc2x6 = vacc0x6;
79 int32x4_t vacc2x7 = vacc0x7;
80
81 size_t k = kc;
82 // 2x partial unrolled loop to load 16 bytes at a time using MLA.
83 while (k >= 16 * sizeof(int8_t)) {
84 const int8x8_t va0x0 = vld1_s8(a0); a0 += 8;
85 const int8x8_t va0x1 = vld1_s8(a0); a0 += 8;
86 const int8x8_t va1x0 = vld1_s8(a1); a1 += 8;
87 const int8x8_t va1x1 = vld1_s8(a1); a1 += 8;
88 const int8x8_t va2x0 = vld1_s8(a2); a2 += 8;
89 const int8x8_t va2x1 = vld1_s8(a2); a2 += 8;
90
91 const int8x8_t vb0x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
92 const int8x8_t vb1x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
93 const int8x8_t vb2x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
94 const int8x8_t vb3x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
95 const int8x8_t vb4x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
96 const int8x8_t vb5x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
97 const int8x8_t vb6x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
98 const int8x8_t vb7x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
99
100 const int8x8_t vb0x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
101 int16x8_t vprod0x0 = vmull_s8(vb0x0, va0x0);
102 int16x8_t vprod1x0 = vmull_s8(vb0x0, va1x0);
103 int16x8_t vprod2x0 = vmull_s8(vb0x0, va2x0);
104 vprod0x0 = vmlal_s8(vprod0x0, vb0x1, va0x1);
105 vprod1x0 = vmlal_s8(vprod1x0, vb0x1, va1x1);
106 vprod2x0 = vmlal_s8(vprod2x0, vb0x1, va2x1);
107 vacc0x0 = vpadalq_s16(vacc0x0, vprod0x0);
108 vacc1x0 = vpadalq_s16(vacc1x0, vprod1x0);
109 vacc2x0 = vpadalq_s16(vacc2x0, vprod2x0);
110 const int8x8_t vb1x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
111 int16x8_t vprod0x1 = vmull_s8(vb1x0, va0x0);
112 int16x8_t vprod1x1 = vmull_s8(vb1x0, va1x0);
113 int16x8_t vprod2x1 = vmull_s8(vb1x0, va2x0);
114 vprod0x1 = vmlal_s8(vprod0x1, vb1x1, va0x1);
115 vprod1x1 = vmlal_s8(vprod1x1, vb1x1, va1x1);
116 vprod2x1 = vmlal_s8(vprod2x1, vb1x1, va2x1);
117 vacc0x1 = vpadalq_s16(vacc0x1, vprod0x1);
118 vacc1x1 = vpadalq_s16(vacc1x1, vprod1x1);
119 vacc2x1 = vpadalq_s16(vacc2x1, vprod2x1);
120 const int8x8_t vb2x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
121 int16x8_t vprod0x2 = vmull_s8(vb2x0, va0x0);
122 int16x8_t vprod1x2 = vmull_s8(vb2x0, va1x0);
123 int16x8_t vprod2x2 = vmull_s8(vb2x0, va2x0);
124 vprod0x2 = vmlal_s8(vprod0x2, vb2x1, va0x1);
125 vprod1x2 = vmlal_s8(vprod1x2, vb2x1, va1x1);
126 vprod2x2 = vmlal_s8(vprod2x2, vb2x1, va2x1);
127 vacc0x2 = vpadalq_s16(vacc0x2, vprod0x2);
128 vacc1x2 = vpadalq_s16(vacc1x2, vprod1x2);
129 vacc2x2 = vpadalq_s16(vacc2x2, vprod2x2);
130 const int8x8_t vb3x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
131 int16x8_t vprod0x3 = vmull_s8(vb3x0, va0x0);
132 int16x8_t vprod1x3 = vmull_s8(vb3x0, va1x0);
133 int16x8_t vprod2x3 = vmull_s8(vb3x0, va2x0);
134 vprod0x3 = vmlal_s8(vprod0x3, vb3x1, va0x1);
135 vprod1x3 = vmlal_s8(vprod1x3, vb3x1, va1x1);
136 vprod2x3 = vmlal_s8(vprod2x3, vb3x1, va2x1);
137 vacc0x3 = vpadalq_s16(vacc0x3, vprod0x3);
138 vacc1x3 = vpadalq_s16(vacc1x3, vprod1x3);
139 vacc2x3 = vpadalq_s16(vacc2x3, vprod2x3);
140 const int8x8_t vb4x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
141 int16x8_t vprod0x4 = vmull_s8(vb4x0, va0x0);
142 int16x8_t vprod1x4 = vmull_s8(vb4x0, va1x0);
143 int16x8_t vprod2x4 = vmull_s8(vb4x0, va2x0);
144 vprod0x4 = vmlal_s8(vprod0x4, vb4x1, va0x1);
145 vprod1x4 = vmlal_s8(vprod1x4, vb4x1, va1x1);
146 vprod2x4 = vmlal_s8(vprod2x4, vb4x1, va2x1);
147 vacc0x4 = vpadalq_s16(vacc0x4, vprod0x4);
148 vacc1x4 = vpadalq_s16(vacc1x4, vprod1x4);
149 vacc2x4 = vpadalq_s16(vacc2x4, vprod2x4);
150 const int8x8_t vb5x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
151 int16x8_t vprod0x5 = vmull_s8(vb5x0, va0x0);
152 int16x8_t vprod1x5 = vmull_s8(vb5x0, va1x0);
153 int16x8_t vprod2x5 = vmull_s8(vb5x0, va2x0);
154 vprod0x5 = vmlal_s8(vprod0x5, vb5x1, va0x1);
155 vprod1x5 = vmlal_s8(vprod1x5, vb5x1, va1x1);
156 vprod2x5 = vmlal_s8(vprod2x5, vb5x1, va2x1);
157 vacc0x5 = vpadalq_s16(vacc0x5, vprod0x5);
158 vacc1x5 = vpadalq_s16(vacc1x5, vprod1x5);
159 vacc2x5 = vpadalq_s16(vacc2x5, vprod2x5);
160 const int8x8_t vb6x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
161 int16x8_t vprod0x6 = vmull_s8(vb6x0, va0x0);
162 int16x8_t vprod1x6 = vmull_s8(vb6x0, va1x0);
163 int16x8_t vprod2x6 = vmull_s8(vb6x0, va2x0);
164 vprod0x6 = vmlal_s8(vprod0x6, vb6x1, va0x1);
165 vprod1x6 = vmlal_s8(vprod1x6, vb6x1, va1x1);
166 vprod2x6 = vmlal_s8(vprod2x6, vb6x1, va2x1);
167 vacc0x6 = vpadalq_s16(vacc0x6, vprod0x6);
168 vacc1x6 = vpadalq_s16(vacc1x6, vprod1x6);
169 vacc2x6 = vpadalq_s16(vacc2x6, vprod2x6);
170 const int8x8_t vb7x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof( int8_t));
171 int16x8_t vprod0x7 = vmull_s8(vb7x0, va0x0);
172 int16x8_t vprod1x7 = vmull_s8(vb7x0, va1x0);
173 int16x8_t vprod2x7 = vmull_s8(vb7x0, va2x0);
174 vprod0x7 = vmlal_s8(vprod0x7, vb7x1, va0x1);
175 vprod1x7 = vmlal_s8(vprod1x7, vb7x1, va1x1);
176 vprod2x7 = vmlal_s8(vprod2x7, vb7x1, va2x1);
177 vacc0x7 = vpadalq_s16(vacc0x7, vprod0x7);
178 vacc1x7 = vpadalq_s16(vacc1x7, vprod1x7);
179 vacc2x7 = vpadalq_s16(vacc2x7, vprod2x7);
180
181 k -= 16 * sizeof(int8_t);
182 }
183
184 // Handle 8 bytes at a time using MUL.
185 if (k != 0) {
186 const int8x8_t va0 = vld1_s8(a0); a0 += 8;
187 const int8x8_t va1 = vld1_s8(a1); a1 += 8;
188 const int8x8_t va2 = vld1_s8(a2); a2 += 8;
189
190 const int8x8_t vb0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
191 const int16x8_t vprod0x0 = vmull_s8(vb0, va0);
192 const int16x8_t vprod1x0 = vmull_s8(vb0, va1);
193 const int16x8_t vprod2x0 = vmull_s8(vb0, va2);
194 vacc0x0 = vpadalq_s16(vacc0x0, vprod0x0);
195 vacc1x0 = vpadalq_s16(vacc1x0, vprod1x0);
196 vacc2x0 = vpadalq_s16(vacc2x0, vprod2x0);
197 const int8x8_t vb1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
198 const int16x8_t vprod0x1 = vmull_s8(vb1, va0);
199 const int16x8_t vprod1x1 = vmull_s8(vb1, va1);
200 const int16x8_t vprod2x1 = vmull_s8(vb1, va2);
201 vacc0x1 = vpadalq_s16(vacc0x1, vprod0x1);
202 vacc1x1 = vpadalq_s16(vacc1x1, vprod1x1);
203 vacc2x1 = vpadalq_s16(vacc2x1, vprod2x1);
204 const int8x8_t vb2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
205 const int16x8_t vprod0x2 = vmull_s8(vb2, va0);
206 const int16x8_t vprod1x2 = vmull_s8(vb2, va1);
207 const int16x8_t vprod2x2 = vmull_s8(vb2, va2);
208 vacc0x2 = vpadalq_s16(vacc0x2, vprod0x2);
209 vacc1x2 = vpadalq_s16(vacc1x2, vprod1x2);
210 vacc2x2 = vpadalq_s16(vacc2x2, vprod2x2);
211 const int8x8_t vb3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
212 const int16x8_t vprod0x3 = vmull_s8(vb3, va0);
213 const int16x8_t vprod1x3 = vmull_s8(vb3, va1);
214 const int16x8_t vprod2x3 = vmull_s8(vb3, va2);
215 vacc0x3 = vpadalq_s16(vacc0x3, vprod0x3);
216 vacc1x3 = vpadalq_s16(vacc1x3, vprod1x3);
217 vacc2x3 = vpadalq_s16(vacc2x3, vprod2x3);
218 const int8x8_t vb4 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
219 const int16x8_t vprod0x4 = vmull_s8(vb4, va0);
220 const int16x8_t vprod1x4 = vmull_s8(vb4, va1);
221 const int16x8_t vprod2x4 = vmull_s8(vb4, va2);
222 vacc0x4 = vpadalq_s16(vacc0x4, vprod0x4);
223 vacc1x4 = vpadalq_s16(vacc1x4, vprod1x4);
224 vacc2x4 = vpadalq_s16(vacc2x4, vprod2x4);
225 const int8x8_t vb5 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
226 const int16x8_t vprod0x5 = vmull_s8(vb5, va0);
227 const int16x8_t vprod1x5 = vmull_s8(vb5, va1);
228 const int16x8_t vprod2x5 = vmull_s8(vb5, va2);
229 vacc0x5 = vpadalq_s16(vacc0x5, vprod0x5);
230 vacc1x5 = vpadalq_s16(vacc1x5, vprod1x5);
231 vacc2x5 = vpadalq_s16(vacc2x5, vprod2x5);
232 const int8x8_t vb6 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
233 const int16x8_t vprod0x6 = vmull_s8(vb6, va0);
234 const int16x8_t vprod1x6 = vmull_s8(vb6, va1);
235 const int16x8_t vprod2x6 = vmull_s8(vb6, va2);
236 vacc0x6 = vpadalq_s16(vacc0x6, vprod0x6);
237 vacc1x6 = vpadalq_s16(vacc1x6, vprod1x6);
238 vacc2x6 = vpadalq_s16(vacc2x6, vprod2x6);
239 const int8x8_t vb7 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
240 const int16x8_t vprod0x7 = vmull_s8(vb7, va0);
241 const int16x8_t vprod1x7 = vmull_s8(vb7, va1);
242 const int16x8_t vprod2x7 = vmull_s8(vb7, va2);
243 vacc0x7 = vpadalq_s16(vacc0x7, vprod0x7);
244 vacc1x7 = vpadalq_s16(vacc1x7, vprod1x7);
245 vacc2x7 = vpadalq_s16(vacc2x7, vprod2x7);
246
247 k -= 8 * sizeof(int8_t);
248 }
249
250 #if XNN_ARCH_ARM64
251 const int32x4_t vsum0x01 = vpaddq_s32(vacc0x0, vacc0x1);
252 const int32x4_t vsum0x23 = vpaddq_s32(vacc0x2, vacc0x3);
253 const int32x4_t vsum0x45 = vpaddq_s32(vacc0x4, vacc0x5);
254 const int32x4_t vsum0x67 = vpaddq_s32(vacc0x6, vacc0x7);
255 const int32x4_t vsum1x01 = vpaddq_s32(vacc1x0, vacc1x1);
256 const int32x4_t vsum1x23 = vpaddq_s32(vacc1x2, vacc1x3);
257 const int32x4_t vsum1x45 = vpaddq_s32(vacc1x4, vacc1x5);
258 const int32x4_t vsum1x67 = vpaddq_s32(vacc1x6, vacc1x7);
259 const int32x4_t vsum2x01 = vpaddq_s32(vacc2x0, vacc2x1);
260 const int32x4_t vsum2x23 = vpaddq_s32(vacc2x2, vacc2x3);
261 const int32x4_t vsum2x45 = vpaddq_s32(vacc2x4, vacc2x5);
262 const int32x4_t vsum2x67 = vpaddq_s32(vacc2x6, vacc2x7);
263
264 int32x4_t vacc0x0123 = vpaddq_s32(vsum0x01, vsum0x23);
265 int32x4_t vacc0x4567 = vpaddq_s32(vsum0x45, vsum0x67);
266 int32x4_t vacc1x0123 = vpaddq_s32(vsum1x01, vsum1x23);
267 int32x4_t vacc1x4567 = vpaddq_s32(vsum1x45, vsum1x67);
268 int32x4_t vacc2x0123 = vpaddq_s32(vsum2x01, vsum2x23);
269 int32x4_t vacc2x4567 = vpaddq_s32(vsum2x45, vsum2x67);
270 #else
271 const int32x2_t vpsum0x0 = vadd_s32(vget_low_s32(vacc0x0), vget_high_s32(vacc0x0));
272 const int32x2_t vpsum0x1 = vadd_s32(vget_low_s32(vacc0x1), vget_high_s32(vacc0x1));
273 const int32x2_t vpsum0x2 = vadd_s32(vget_low_s32(vacc0x2), vget_high_s32(vacc0x2));
274 const int32x2_t vpsum0x3 = vadd_s32(vget_low_s32(vacc0x3), vget_high_s32(vacc0x3));
275 const int32x2_t vsum0x01 = vpadd_s32(vpsum0x0, vpsum0x1);
276 const int32x2_t vsum0x23 = vpadd_s32(vpsum0x2, vpsum0x3);
277 int32x4_t vacc0x0123 = vcombine_s32(vsum0x01, vsum0x23 );
278 const int32x2_t vpsum0x4 = vadd_s32(vget_low_s32(vacc0x4), vget_high_s32(vacc0x4));
279 const int32x2_t vpsum0x5 = vadd_s32(vget_low_s32(vacc0x5), vget_high_s32(vacc0x5));
280 const int32x2_t vpsum0x6 = vadd_s32(vget_low_s32(vacc0x6), vget_high_s32(vacc0x6));
281 const int32x2_t vpsum0x7 = vadd_s32(vget_low_s32(vacc0x7), vget_high_s32(vacc0x7));
282 const int32x2_t vsum0x45 = vpadd_s32(vpsum0x4, vpsum0x5);
283 const int32x2_t vsum0x67 = vpadd_s32(vpsum0x6, vpsum0x7);
284 int32x4_t vacc0x4567 = vcombine_s32(vsum0x45, vsum0x67 );
285 const int32x2_t vpsum1x0 = vadd_s32(vget_low_s32(vacc1x0), vget_high_s32(vacc1x0));
286 const int32x2_t vpsum1x1 = vadd_s32(vget_low_s32(vacc1x1), vget_high_s32(vacc1x1));
287 const int32x2_t vpsum1x2 = vadd_s32(vget_low_s32(vacc1x2), vget_high_s32(vacc1x2));
288 const int32x2_t vpsum1x3 = vadd_s32(vget_low_s32(vacc1x3), vget_high_s32(vacc1x3));
289 const int32x2_t vsum1x01 = vpadd_s32(vpsum1x0, vpsum1x1);
290 const int32x2_t vsum1x23 = vpadd_s32(vpsum1x2, vpsum1x3);
291 int32x4_t vacc1x0123 = vcombine_s32(vsum1x01, vsum1x23 );
292 const int32x2_t vpsum1x4 = vadd_s32(vget_low_s32(vacc1x4), vget_high_s32(vacc1x4));
293 const int32x2_t vpsum1x5 = vadd_s32(vget_low_s32(vacc1x5), vget_high_s32(vacc1x5));
294 const int32x2_t vpsum1x6 = vadd_s32(vget_low_s32(vacc1x6), vget_high_s32(vacc1x6));
295 const int32x2_t vpsum1x7 = vadd_s32(vget_low_s32(vacc1x7), vget_high_s32(vacc1x7));
296 const int32x2_t vsum1x45 = vpadd_s32(vpsum1x4, vpsum1x5);
297 const int32x2_t vsum1x67 = vpadd_s32(vpsum1x6, vpsum1x7);
298 int32x4_t vacc1x4567 = vcombine_s32(vsum1x45, vsum1x67 );
299 const int32x2_t vpsum2x0 = vadd_s32(vget_low_s32(vacc2x0), vget_high_s32(vacc2x0));
300 const int32x2_t vpsum2x1 = vadd_s32(vget_low_s32(vacc2x1), vget_high_s32(vacc2x1));
301 const int32x2_t vpsum2x2 = vadd_s32(vget_low_s32(vacc2x2), vget_high_s32(vacc2x2));
302 const int32x2_t vpsum2x3 = vadd_s32(vget_low_s32(vacc2x3), vget_high_s32(vacc2x3));
303 const int32x2_t vsum2x01 = vpadd_s32(vpsum2x0, vpsum2x1);
304 const int32x2_t vsum2x23 = vpadd_s32(vpsum2x2, vpsum2x3);
305 int32x4_t vacc2x0123 = vcombine_s32(vsum2x01, vsum2x23 );
306 const int32x2_t vpsum2x4 = vadd_s32(vget_low_s32(vacc2x4), vget_high_s32(vacc2x4));
307 const int32x2_t vpsum2x5 = vadd_s32(vget_low_s32(vacc2x5), vget_high_s32(vacc2x5));
308 const int32x2_t vpsum2x6 = vadd_s32(vget_low_s32(vacc2x6), vget_high_s32(vacc2x6));
309 const int32x2_t vpsum2x7 = vadd_s32(vget_low_s32(vacc2x7), vget_high_s32(vacc2x7));
310 const int32x2_t vsum2x45 = vpadd_s32(vpsum2x4, vpsum2x5);
311 const int32x2_t vsum2x67 = vpadd_s32(vpsum2x6, vpsum2x7);
312 int32x4_t vacc2x4567 = vcombine_s32(vsum2x45, vsum2x67 );
313 #endif
314
315 const int32x4_t vright_pre_shift = vld1q_dup_s32(¶ms->rndnu_neon.right_pre_shift);
316 const int32x4_t vmultiplier = vld1q_dup_s32(¶ms->rndnu_neon.multiplier);
317 const int32x4_t vright_post_shift = vld1q_dup_s32(¶ms->rndnu_neon.right_post_shift);
318
319 vacc0x0123 = vqshlq_s32(vacc0x0123, vright_pre_shift);
320 vacc0x4567 = vqshlq_s32(vacc0x4567, vright_pre_shift);
321 vacc1x0123 = vqshlq_s32(vacc1x0123, vright_pre_shift);
322 vacc1x4567 = vqshlq_s32(vacc1x4567, vright_pre_shift);
323 vacc2x0123 = vqshlq_s32(vacc2x0123, vright_pre_shift);
324 vacc2x4567 = vqshlq_s32(vacc2x4567, vright_pre_shift);
325
326 vacc0x0123 = vqdmulhq_s32(vacc0x0123, vmultiplier);
327 vacc0x4567 = vqdmulhq_s32(vacc0x4567, vmultiplier);
328 vacc1x0123 = vqdmulhq_s32(vacc1x0123, vmultiplier);
329 vacc1x4567 = vqdmulhq_s32(vacc1x4567, vmultiplier);
330 vacc2x0123 = vqdmulhq_s32(vacc2x0123, vmultiplier);
331 vacc2x4567 = vqdmulhq_s32(vacc2x4567, vmultiplier);
332
333 vacc0x0123 = vrshlq_s32(vacc0x0123, vright_post_shift);
334 vacc0x4567 = vrshlq_s32(vacc0x4567, vright_post_shift);
335 vacc1x0123 = vrshlq_s32(vacc1x0123, vright_post_shift);
336 vacc1x4567 = vrshlq_s32(vacc1x4567, vright_post_shift);
337 vacc2x0123 = vrshlq_s32(vacc2x0123, vright_post_shift);
338 vacc2x4567 = vrshlq_s32(vacc2x4567, vright_post_shift);
339
340 const int16x8_t voutput_zero_point = vld1q_dup_s16(¶ms->rndnu_neon.output_zero_point);
341 #if XNN_ARCH_ARM64
342 int16x8_t vacc0x01234567 = vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567);
343 int16x8_t vacc1x01234567 = vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567);
344 int16x8_t vacc2x01234567 = vqmovn_high_s32(vqmovn_s32(vacc2x0123), vacc2x4567);
345
346 vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
347 vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
348 vacc2x01234567 = vqaddq_s16(vacc2x01234567, voutput_zero_point);
349
350 int8x16_t vout0x01234567_1x01234567 = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc1x01234567);
351 int8x8_t vout2x01234567 = vqmovn_s16(vacc2x01234567);
352 #else
353 int16x8_t vacc0x01234567 = vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567));
354 int16x8_t vacc1x01234567 = vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567));
355 int16x8_t vacc2x01234567 = vcombine_s16(vqmovn_s32(vacc2x0123), vqmovn_s32(vacc2x4567));
356
357 vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
358 vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
359 vacc2x01234567 = vqaddq_s16(vacc2x01234567, voutput_zero_point);
360
361 int8x16_t vout0x01234567_1x01234567 = vcombine_s8(vqmovn_s16(vacc0x01234567), vqmovn_s16(vacc1x01234567));
362 int8x8_t vout2x01234567 = vqmovn_s16(vacc2x01234567);
363 #endif
364
365 const int8x16_t voutput_min = vld1q_dup_s8(¶ms->rndnu_neon.output_min);
366 vout0x01234567_1x01234567 = vmaxq_s8(vout0x01234567_1x01234567, voutput_min);
367 vout2x01234567 = vmax_s8(vout2x01234567, vget_low_s8(voutput_min));
368
369 const int8x16_t voutput_max = vld1q_dup_s8(¶ms->rndnu_neon.output_max);
370 vout0x01234567_1x01234567 = vminq_s8(vout0x01234567_1x01234567, voutput_max);
371 vout2x01234567 = vmin_s8(vout2x01234567, vget_low_s8(voutput_max));
372
373 if (nc >= 8) {
374 vst1_s8(c0 + 0, vget_low_s8(vout0x01234567_1x01234567));
375 vst1_s8(c1 + 0, vget_high_s8(vout0x01234567_1x01234567));
376 vst1_s8(c2 + 0, vout2x01234567);
377
378 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
379 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
380 c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
381
382 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
383 a1 = (const int8_t*) ((uintptr_t) a1 - kc);
384 a2 = (const int8_t*) ((uintptr_t) a2 - kc);
385
386 nc -= 8;
387 } else {
388 // Final case where not all of the 8 columns fit in the destination.
389 if (nc & 4) {
390 vst1q_lane_u32((void*) c0, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
391 vst1q_lane_u32((void*) c1, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
392 vst1_lane_u32((void*) c2, vreinterpret_u32_s8(vout2x01234567), 0); c2 += 4;
393 vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 4);
394 vout2x01234567 = vext_s8(vout2x01234567, vout2x01234567, 4);
395 }
396 if (nc & 2) {
397 vst1q_lane_u16((void*) c0, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
398 vst1q_lane_u16((void*) c1, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
399 vst1_lane_u16((void*) c2, vreinterpret_u16_s8(vout2x01234567), 0); c2 += 2;
400 vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 2);
401 vout2x01234567 = vext_s8(vout2x01234567, vout2x01234567, 2);
402 }
403 if (nc & 1) {
404 vst1q_lane_s8(c0, vout0x01234567_1x01234567, 0);
405 vst1q_lane_s8(c1, vout0x01234567_1x01234567, 8);
406 vst1_lane_s8(c2, vout2x01234567, 0);
407 }
408
409 nc = 0;
410 }
411 } while (nc != 0);
412 }
413