1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-gemm/MRxNRc4-neondot.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 <arm_neon.h>
13
14 #include <xnnpack/gemm.h>
15 #include <xnnpack/math.h>
16
17
xnn_qs8_gemm_minmax_ukernel_6x16c4__neondot(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_gemm_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_qs8_gemm_minmax_ukernel_6x16c4__neondot(
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_gemm_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN {
29 assert(mr != 0);
30 assert(mr <= 6);
31 assert(nc != 0);
32 assert(kc != 0);
33 assert(kc % sizeof(int8_t) == 0);
34 assert(a != NULL);
35 assert(w != NULL);
36 assert(c != NULL);
37
38 kc = round_up_po2(kc, 4);
39 const int8_t* a0 = a;
40 int8_t* c0 = c;
41 const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
42 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
43 if XNN_UNPREDICTABLE(mr < 2) {
44 a1 = a0;
45 c1 = c0;
46 }
47 const int8_t* a2 = (const int8_t*) ((uintptr_t) a1 + a_stride);
48 int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
49 if XNN_UNPREDICTABLE(mr <= 2) {
50 a2 = a1;
51 c2 = c1;
52 }
53 const int8_t* a3 = (const int8_t*) ((uintptr_t) a2 + a_stride);
54 int8_t* c3 = (int8_t*) ((uintptr_t) c2 + cm_stride);
55 if XNN_UNPREDICTABLE(mr < 4) {
56 a3 = a2;
57 c3 = c2;
58 }
59 const int8_t* a4 = (const int8_t*) ((uintptr_t) a3 + a_stride);
60 int8_t* c4 = (int8_t*) ((uintptr_t) c3 + cm_stride);
61 if XNN_UNPREDICTABLE(mr <= 4) {
62 a4 = a3;
63 c4 = c3;
64 }
65 const int8_t* a5 = (const int8_t*) ((uintptr_t) a4 + a_stride);
66 int8_t* c5 = (int8_t*) ((uintptr_t) c4 + cm_stride);
67 if XNN_UNPREDICTABLE(mr != 6) {
68 a5 = a4;
69 c5 = c4;
70 }
71
72 // Loop over groups of 16 columns.
73 do {
74 // Initialize accumulators with bias. 16 bias values are loaded from the
75 // weight matrix, at the start of the group of 16 columns.
76 int32x4_t vacc0x0123 = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
77 int32x4_t vacc0x4567 = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
78 int32x4_t vacc0x89AB = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
79 int32x4_t vacc0xCDEF = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
80 int32x4_t vacc1x0123 = vacc0x0123;
81 int32x4_t vacc1x4567 = vacc0x4567;
82 int32x4_t vacc1x89AB = vacc0x89AB;
83 int32x4_t vacc1xCDEF = vacc0xCDEF;
84 int32x4_t vacc2x0123 = vacc0x0123;
85 int32x4_t vacc2x4567 = vacc0x4567;
86 int32x4_t vacc2x89AB = vacc0x89AB;
87 int32x4_t vacc2xCDEF = vacc0xCDEF;
88 int32x4_t vacc3x0123 = vacc0x0123;
89 int32x4_t vacc3x4567 = vacc0x4567;
90 int32x4_t vacc3x89AB = vacc0x89AB;
91 int32x4_t vacc3xCDEF = vacc0xCDEF;
92 int32x4_t vacc4x0123 = vacc0x0123;
93 int32x4_t vacc4x4567 = vacc0x4567;
94 int32x4_t vacc4x89AB = vacc0x89AB;
95 int32x4_t vacc4xCDEF = vacc0xCDEF;
96 int32x4_t vacc5x0123 = vacc0x0123;
97 int32x4_t vacc5x4567 = vacc0x4567;
98 int32x4_t vacc5x89AB = vacc0x89AB;
99 int32x4_t vacc5xCDEF = vacc0xCDEF;
100
101 // Inner accumulation loop along the 16 columns.
102 size_t k = kc;
103 // 2x partial unrolled loop to load 8 bytes at a time.
104 while (k >= 8 * sizeof(int8_t)) {
105 // Load a 6x8 block of activations.
106 const int8x8_t va0x01234567 = vld1_s8(a0); a0 += 8;
107 const int8x8_t va1x01234567 = vld1_s8(a1); a1 += 8;
108 const int8x8_t va2x01234567 = vld1_s8(a2); a2 += 8;
109 const int8x8_t va3x01234567 = vld1_s8(a3); a3 += 8;
110 const int8x8_t va4x01234567 = vld1_s8(a4); a4 += 8;
111 const int8x8_t va5x01234567 = vld1_s8(a5); a5 += 8;
112
113 // Load a 8x16 block of weights.
114 const int8x16_t vb0123x0123 = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
115 const int8x16_t vb0123x4567 = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
116 const int8x16_t vb0123x89AB = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
117 const int8x16_t vb0123xCDEF = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
118 const int8x16_t vb4567x0123 = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
119 const int8x16_t vb4567x4567 = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
120 const int8x16_t vb4567x89AB = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
121 const int8x16_t vb4567xCDEF = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
122
123 // Multiply-accumulate: 6x8 * 8x16 --> 6x16.
124 vacc0x0123 = vdotq_lane_s32(vacc0x0123, vb0123x0123, va0x01234567, 0);
125 vacc0x4567 = vdotq_lane_s32(vacc0x4567, vb0123x4567, va0x01234567, 0);
126 vacc0x89AB = vdotq_lane_s32(vacc0x89AB, vb0123x89AB, va0x01234567, 0);
127 vacc0xCDEF = vdotq_lane_s32(vacc0xCDEF, vb0123xCDEF, va0x01234567, 0);
128 vacc1x0123 = vdotq_lane_s32(vacc1x0123, vb0123x0123, va1x01234567, 0);
129 vacc1x4567 = vdotq_lane_s32(vacc1x4567, vb0123x4567, va1x01234567, 0);
130 vacc1x89AB = vdotq_lane_s32(vacc1x89AB, vb0123x89AB, va1x01234567, 0);
131 vacc1xCDEF = vdotq_lane_s32(vacc1xCDEF, vb0123xCDEF, va1x01234567, 0);
132 vacc2x0123 = vdotq_lane_s32(vacc2x0123, vb0123x0123, va2x01234567, 0);
133 vacc2x4567 = vdotq_lane_s32(vacc2x4567, vb0123x4567, va2x01234567, 0);
134 vacc2x89AB = vdotq_lane_s32(vacc2x89AB, vb0123x89AB, va2x01234567, 0);
135 vacc2xCDEF = vdotq_lane_s32(vacc2xCDEF, vb0123xCDEF, va2x01234567, 0);
136 vacc3x0123 = vdotq_lane_s32(vacc3x0123, vb0123x0123, va3x01234567, 0);
137 vacc3x4567 = vdotq_lane_s32(vacc3x4567, vb0123x4567, va3x01234567, 0);
138 vacc3x89AB = vdotq_lane_s32(vacc3x89AB, vb0123x89AB, va3x01234567, 0);
139 vacc3xCDEF = vdotq_lane_s32(vacc3xCDEF, vb0123xCDEF, va3x01234567, 0);
140 vacc4x0123 = vdotq_lane_s32(vacc4x0123, vb0123x0123, va4x01234567, 0);
141 vacc4x4567 = vdotq_lane_s32(vacc4x4567, vb0123x4567, va4x01234567, 0);
142 vacc4x89AB = vdotq_lane_s32(vacc4x89AB, vb0123x89AB, va4x01234567, 0);
143 vacc4xCDEF = vdotq_lane_s32(vacc4xCDEF, vb0123xCDEF, va4x01234567, 0);
144 vacc5x0123 = vdotq_lane_s32(vacc5x0123, vb0123x0123, va5x01234567, 0);
145 vacc5x4567 = vdotq_lane_s32(vacc5x4567, vb0123x4567, va5x01234567, 0);
146 vacc5x89AB = vdotq_lane_s32(vacc5x89AB, vb0123x89AB, va5x01234567, 0);
147 vacc5xCDEF = vdotq_lane_s32(vacc5xCDEF, vb0123xCDEF, va5x01234567, 0);
148 vacc0x0123 = vdotq_lane_s32(vacc0x0123, vb4567x0123, va0x01234567, 1);
149 vacc0x4567 = vdotq_lane_s32(vacc0x4567, vb4567x4567, va0x01234567, 1);
150 vacc0x89AB = vdotq_lane_s32(vacc0x89AB, vb4567x89AB, va0x01234567, 1);
151 vacc0xCDEF = vdotq_lane_s32(vacc0xCDEF, vb4567xCDEF, va0x01234567, 1);
152 vacc1x0123 = vdotq_lane_s32(vacc1x0123, vb4567x0123, va1x01234567, 1);
153 vacc1x4567 = vdotq_lane_s32(vacc1x4567, vb4567x4567, va1x01234567, 1);
154 vacc1x89AB = vdotq_lane_s32(vacc1x89AB, vb4567x89AB, va1x01234567, 1);
155 vacc1xCDEF = vdotq_lane_s32(vacc1xCDEF, vb4567xCDEF, va1x01234567, 1);
156 vacc2x0123 = vdotq_lane_s32(vacc2x0123, vb4567x0123, va2x01234567, 1);
157 vacc2x4567 = vdotq_lane_s32(vacc2x4567, vb4567x4567, va2x01234567, 1);
158 vacc2x89AB = vdotq_lane_s32(vacc2x89AB, vb4567x89AB, va2x01234567, 1);
159 vacc2xCDEF = vdotq_lane_s32(vacc2xCDEF, vb4567xCDEF, va2x01234567, 1);
160 vacc3x0123 = vdotq_lane_s32(vacc3x0123, vb4567x0123, va3x01234567, 1);
161 vacc3x4567 = vdotq_lane_s32(vacc3x4567, vb4567x4567, va3x01234567, 1);
162 vacc3x89AB = vdotq_lane_s32(vacc3x89AB, vb4567x89AB, va3x01234567, 1);
163 vacc3xCDEF = vdotq_lane_s32(vacc3xCDEF, vb4567xCDEF, va3x01234567, 1);
164 vacc4x0123 = vdotq_lane_s32(vacc4x0123, vb4567x0123, va4x01234567, 1);
165 vacc4x4567 = vdotq_lane_s32(vacc4x4567, vb4567x4567, va4x01234567, 1);
166 vacc4x89AB = vdotq_lane_s32(vacc4x89AB, vb4567x89AB, va4x01234567, 1);
167 vacc4xCDEF = vdotq_lane_s32(vacc4xCDEF, vb4567xCDEF, va4x01234567, 1);
168 vacc5x0123 = vdotq_lane_s32(vacc5x0123, vb4567x0123, va5x01234567, 1);
169 vacc5x4567 = vdotq_lane_s32(vacc5x4567, vb4567x4567, va5x01234567, 1);
170 vacc5x89AB = vdotq_lane_s32(vacc5x89AB, vb4567x89AB, va5x01234567, 1);
171 vacc5xCDEF = vdotq_lane_s32(vacc5xCDEF, vb4567xCDEF, va5x01234567, 1);
172
173 k -= 8 * sizeof(int8_t);
174 }
175 // Handle up to 4 final positions of `k`
176 if XNN_UNLIKELY(k != 0) {
177 // Load a 6x4 block of activations.
178 const int8x8_t va0x01234567 = vld1_s8(a0); a0 += 4;
179 const int8x8_t va1x01234567 = vld1_s8(a1); a1 += 4;
180 const int8x8_t va2x01234567 = vld1_s8(a2); a2 += 4;
181 const int8x8_t va3x01234567 = vld1_s8(a3); a3 += 4;
182 const int8x8_t va4x01234567 = vld1_s8(a4); a4 += 4;
183 const int8x8_t va5x01234567 = vld1_s8(a5); a5 += 4;
184
185 // Load a 4x16 block of weights.
186 const int8x16_t vb0123x0123 = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
187 const int8x16_t vb0123x4567 = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
188 const int8x16_t vb0123x89AB = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
189 const int8x16_t vb0123xCDEF = vld1q_s8(w); w = (const void*) ((const int8_t*) w + 16);
190
191 // Multiply-accumulate: 6x4 * 4x16 --> 6x16.
192 vacc0x0123 = vdotq_lane_s32(vacc0x0123, vb0123x0123, va0x01234567, 0);
193 vacc0x4567 = vdotq_lane_s32(vacc0x4567, vb0123x4567, va0x01234567, 0);
194 vacc0x89AB = vdotq_lane_s32(vacc0x89AB, vb0123x89AB, va0x01234567, 0);
195 vacc0xCDEF = vdotq_lane_s32(vacc0xCDEF, vb0123xCDEF, va0x01234567, 0);
196 vacc1x0123 = vdotq_lane_s32(vacc1x0123, vb0123x0123, va1x01234567, 0);
197 vacc1x4567 = vdotq_lane_s32(vacc1x4567, vb0123x4567, va1x01234567, 0);
198 vacc1x89AB = vdotq_lane_s32(vacc1x89AB, vb0123x89AB, va1x01234567, 0);
199 vacc1xCDEF = vdotq_lane_s32(vacc1xCDEF, vb0123xCDEF, va1x01234567, 0);
200 vacc2x0123 = vdotq_lane_s32(vacc2x0123, vb0123x0123, va2x01234567, 0);
201 vacc2x4567 = vdotq_lane_s32(vacc2x4567, vb0123x4567, va2x01234567, 0);
202 vacc2x89AB = vdotq_lane_s32(vacc2x89AB, vb0123x89AB, va2x01234567, 0);
203 vacc2xCDEF = vdotq_lane_s32(vacc2xCDEF, vb0123xCDEF, va2x01234567, 0);
204 vacc3x0123 = vdotq_lane_s32(vacc3x0123, vb0123x0123, va3x01234567, 0);
205 vacc3x4567 = vdotq_lane_s32(vacc3x4567, vb0123x4567, va3x01234567, 0);
206 vacc3x89AB = vdotq_lane_s32(vacc3x89AB, vb0123x89AB, va3x01234567, 0);
207 vacc3xCDEF = vdotq_lane_s32(vacc3xCDEF, vb0123xCDEF, va3x01234567, 0);
208 vacc4x0123 = vdotq_lane_s32(vacc4x0123, vb0123x0123, va4x01234567, 0);
209 vacc4x4567 = vdotq_lane_s32(vacc4x4567, vb0123x4567, va4x01234567, 0);
210 vacc4x89AB = vdotq_lane_s32(vacc4x89AB, vb0123x89AB, va4x01234567, 0);
211 vacc4xCDEF = vdotq_lane_s32(vacc4xCDEF, vb0123xCDEF, va4x01234567, 0);
212 vacc5x0123 = vdotq_lane_s32(vacc5x0123, vb0123x0123, va5x01234567, 0);
213 vacc5x4567 = vdotq_lane_s32(vacc5x4567, vb0123x4567, va5x01234567, 0);
214 vacc5x89AB = vdotq_lane_s32(vacc5x89AB, vb0123x89AB, va5x01234567, 0);
215 vacc5xCDEF = vdotq_lane_s32(vacc5xCDEF, vb0123xCDEF, va5x01234567, 0);
216 }
217
218 // Post-accumulation work
219 const int32x4_t vright_shift = vld1q_dup_s32(¶ms->neon.right_shift);
220 const int32x4_t vzero_shift_mask = vreinterpretq_s32_u32(vceqq_s32(vright_shift, vmovq_n_s32(0)));
221
222 const int32x4_t vproduct0x0123 = vqrdmulhq_n_s32(vacc0x0123, params->neon.multiplier);
223 const int32x4_t vproduct0x4567 = vqrdmulhq_n_s32(vacc0x4567, params->neon.multiplier);
224 const int32x4_t vproduct0x89AB = vqrdmulhq_n_s32(vacc0x89AB, params->neon.multiplier);
225 const int32x4_t vproduct0xCDEF = vqrdmulhq_n_s32(vacc0xCDEF, params->neon.multiplier);
226 const int32x4_t vproduct1x0123 = vqrdmulhq_n_s32(vacc1x0123, params->neon.multiplier);
227 const int32x4_t vproduct1x4567 = vqrdmulhq_n_s32(vacc1x4567, params->neon.multiplier);
228 const int32x4_t vproduct1x89AB = vqrdmulhq_n_s32(vacc1x89AB, params->neon.multiplier);
229 const int32x4_t vproduct1xCDEF = vqrdmulhq_n_s32(vacc1xCDEF, params->neon.multiplier);
230 const int32x4_t vproduct2x0123 = vqrdmulhq_n_s32(vacc2x0123, params->neon.multiplier);
231 const int32x4_t vproduct2x4567 = vqrdmulhq_n_s32(vacc2x4567, params->neon.multiplier);
232 const int32x4_t vproduct2x89AB = vqrdmulhq_n_s32(vacc2x89AB, params->neon.multiplier);
233 const int32x4_t vproduct2xCDEF = vqrdmulhq_n_s32(vacc2xCDEF, params->neon.multiplier);
234 const int32x4_t vproduct3x0123 = vqrdmulhq_n_s32(vacc3x0123, params->neon.multiplier);
235 const int32x4_t vproduct3x4567 = vqrdmulhq_n_s32(vacc3x4567, params->neon.multiplier);
236 const int32x4_t vproduct3x89AB = vqrdmulhq_n_s32(vacc3x89AB, params->neon.multiplier);
237 const int32x4_t vproduct3xCDEF = vqrdmulhq_n_s32(vacc3xCDEF, params->neon.multiplier);
238 const int32x4_t vproduct4x0123 = vqrdmulhq_n_s32(vacc4x0123, params->neon.multiplier);
239 const int32x4_t vproduct4x4567 = vqrdmulhq_n_s32(vacc4x4567, params->neon.multiplier);
240 const int32x4_t vproduct4x89AB = vqrdmulhq_n_s32(vacc4x89AB, params->neon.multiplier);
241 const int32x4_t vproduct4xCDEF = vqrdmulhq_n_s32(vacc4xCDEF, params->neon.multiplier);
242 const int32x4_t vproduct5x0123 = vqrdmulhq_n_s32(vacc5x0123, params->neon.multiplier);
243 const int32x4_t vproduct5x4567 = vqrdmulhq_n_s32(vacc5x4567, params->neon.multiplier);
244 const int32x4_t vproduct5x89AB = vqrdmulhq_n_s32(vacc5x89AB, params->neon.multiplier);
245 const int32x4_t vproduct5xCDEF = vqrdmulhq_n_s32(vacc5xCDEF, params->neon.multiplier);
246
247 vacc0x0123 = vsraq_n_s32(vproduct0x0123, vbicq_s32(vacc0x0123, vzero_shift_mask), 31);
248 vacc0x4567 = vsraq_n_s32(vproduct0x4567, vbicq_s32(vacc0x4567, vzero_shift_mask), 31);
249 vacc0x89AB = vsraq_n_s32(vproduct0x89AB, vbicq_s32(vacc0x89AB, vzero_shift_mask), 31);
250 vacc0xCDEF = vsraq_n_s32(vproduct0xCDEF, vbicq_s32(vacc0xCDEF, vzero_shift_mask), 31);
251 vacc1x0123 = vsraq_n_s32(vproduct1x0123, vbicq_s32(vacc1x0123, vzero_shift_mask), 31);
252 vacc1x4567 = vsraq_n_s32(vproduct1x4567, vbicq_s32(vacc1x4567, vzero_shift_mask), 31);
253 vacc1x89AB = vsraq_n_s32(vproduct1x89AB, vbicq_s32(vacc1x89AB, vzero_shift_mask), 31);
254 vacc1xCDEF = vsraq_n_s32(vproduct1xCDEF, vbicq_s32(vacc1xCDEF, vzero_shift_mask), 31);
255 vacc2x0123 = vsraq_n_s32(vproduct2x0123, vbicq_s32(vacc2x0123, vzero_shift_mask), 31);
256 vacc2x4567 = vsraq_n_s32(vproduct2x4567, vbicq_s32(vacc2x4567, vzero_shift_mask), 31);
257 vacc2x89AB = vsraq_n_s32(vproduct2x89AB, vbicq_s32(vacc2x89AB, vzero_shift_mask), 31);
258 vacc2xCDEF = vsraq_n_s32(vproduct2xCDEF, vbicq_s32(vacc2xCDEF, vzero_shift_mask), 31);
259 vacc3x0123 = vsraq_n_s32(vproduct3x0123, vbicq_s32(vacc3x0123, vzero_shift_mask), 31);
260 vacc3x4567 = vsraq_n_s32(vproduct3x4567, vbicq_s32(vacc3x4567, vzero_shift_mask), 31);
261 vacc3x89AB = vsraq_n_s32(vproduct3x89AB, vbicq_s32(vacc3x89AB, vzero_shift_mask), 31);
262 vacc3xCDEF = vsraq_n_s32(vproduct3xCDEF, vbicq_s32(vacc3xCDEF, vzero_shift_mask), 31);
263 vacc4x0123 = vsraq_n_s32(vproduct4x0123, vbicq_s32(vacc4x0123, vzero_shift_mask), 31);
264 vacc4x4567 = vsraq_n_s32(vproduct4x4567, vbicq_s32(vacc4x4567, vzero_shift_mask), 31);
265 vacc4x89AB = vsraq_n_s32(vproduct4x89AB, vbicq_s32(vacc4x89AB, vzero_shift_mask), 31);
266 vacc4xCDEF = vsraq_n_s32(vproduct4xCDEF, vbicq_s32(vacc4xCDEF, vzero_shift_mask), 31);
267 vacc5x0123 = vsraq_n_s32(vproduct5x0123, vbicq_s32(vacc5x0123, vzero_shift_mask), 31);
268 vacc5x4567 = vsraq_n_s32(vproduct5x4567, vbicq_s32(vacc5x4567, vzero_shift_mask), 31);
269 vacc5x89AB = vsraq_n_s32(vproduct5x89AB, vbicq_s32(vacc5x89AB, vzero_shift_mask), 31);
270 vacc5xCDEF = vsraq_n_s32(vproduct5xCDEF, vbicq_s32(vacc5xCDEF, vzero_shift_mask), 31);
271
272 vacc0x0123 = vrshlq_s32(vacc0x0123, vright_shift);
273 vacc0x4567 = vrshlq_s32(vacc0x4567, vright_shift);
274 vacc0x89AB = vrshlq_s32(vacc0x89AB, vright_shift);
275 vacc0xCDEF = vrshlq_s32(vacc0xCDEF, vright_shift);
276 vacc1x0123 = vrshlq_s32(vacc1x0123, vright_shift);
277 vacc1x4567 = vrshlq_s32(vacc1x4567, vright_shift);
278 vacc1x89AB = vrshlq_s32(vacc1x89AB, vright_shift);
279 vacc1xCDEF = vrshlq_s32(vacc1xCDEF, vright_shift);
280 vacc2x0123 = vrshlq_s32(vacc2x0123, vright_shift);
281 vacc2x4567 = vrshlq_s32(vacc2x4567, vright_shift);
282 vacc2x89AB = vrshlq_s32(vacc2x89AB, vright_shift);
283 vacc2xCDEF = vrshlq_s32(vacc2xCDEF, vright_shift);
284 vacc3x0123 = vrshlq_s32(vacc3x0123, vright_shift);
285 vacc3x4567 = vrshlq_s32(vacc3x4567, vright_shift);
286 vacc3x89AB = vrshlq_s32(vacc3x89AB, vright_shift);
287 vacc3xCDEF = vrshlq_s32(vacc3xCDEF, vright_shift);
288 vacc4x0123 = vrshlq_s32(vacc4x0123, vright_shift);
289 vacc4x4567 = vrshlq_s32(vacc4x4567, vright_shift);
290 vacc4x89AB = vrshlq_s32(vacc4x89AB, vright_shift);
291 vacc4xCDEF = vrshlq_s32(vacc4xCDEF, vright_shift);
292 vacc5x0123 = vrshlq_s32(vacc5x0123, vright_shift);
293 vacc5x4567 = vrshlq_s32(vacc5x4567, vright_shift);
294 vacc5x89AB = vrshlq_s32(vacc5x89AB, vright_shift);
295 vacc5xCDEF = vrshlq_s32(vacc5xCDEF, vright_shift);
296
297 const int16x8_t voutput_zero_point = vld1q_dup_s16(¶ms->neon.output_zero_point);
298 #if XNN_ARCH_ARM64
299 const int16x8_t vacc0x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567), voutput_zero_point);
300 const int16x8_t vacc0x89ABCDEF = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc0x89AB), vacc0xCDEF), voutput_zero_point);
301 const int16x8_t vacc1x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567), voutput_zero_point);
302 const int16x8_t vacc1x89ABCDEF = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc1x89AB), vacc1xCDEF), voutput_zero_point);
303 const int16x8_t vacc2x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc2x0123), vacc2x4567), voutput_zero_point);
304 const int16x8_t vacc2x89ABCDEF = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc2x89AB), vacc2xCDEF), voutput_zero_point);
305 const int16x8_t vacc3x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc3x0123), vacc3x4567), voutput_zero_point);
306 const int16x8_t vacc3x89ABCDEF = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc3x89AB), vacc3xCDEF), voutput_zero_point);
307 const int16x8_t vacc4x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc4x0123), vacc4x4567), voutput_zero_point);
308 const int16x8_t vacc4x89ABCDEF = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc4x89AB), vacc4xCDEF), voutput_zero_point);
309 const int16x8_t vacc5x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc5x0123), vacc5x4567), voutput_zero_point);
310 const int16x8_t vacc5x89ABCDEF = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc5x89AB), vacc5xCDEF), voutput_zero_point);
311
312 int8x16_t vout0x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc0x89ABCDEF);
313 int8x16_t vout1x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc1x01234567), vacc1x89ABCDEF);
314 int8x16_t vout2x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc2x01234567), vacc2x89ABCDEF);
315 int8x16_t vout3x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc3x01234567), vacc3x89ABCDEF);
316 int8x16_t vout4x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc4x01234567), vacc4x89ABCDEF);
317 int8x16_t vout5x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc5x01234567), vacc5x89ABCDEF);
318 #else
319 const int16x8_t vacc0x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567)), voutput_zero_point);
320 const int16x8_t vacc0x89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0x89AB), vqmovn_s32(vacc0xCDEF)), voutput_zero_point);
321 const int16x8_t vacc1x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567)), voutput_zero_point);
322 const int16x8_t vacc1x89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc1x89AB), vqmovn_s32(vacc1xCDEF)), voutput_zero_point);
323 const int16x8_t vacc2x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc2x0123), vqmovn_s32(vacc2x4567)), voutput_zero_point);
324 const int16x8_t vacc2x89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc2x89AB), vqmovn_s32(vacc2xCDEF)), voutput_zero_point);
325 const int16x8_t vacc3x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc3x0123), vqmovn_s32(vacc3x4567)), voutput_zero_point);
326 const int16x8_t vacc3x89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc3x89AB), vqmovn_s32(vacc3xCDEF)), voutput_zero_point);
327 const int16x8_t vacc4x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc4x0123), vqmovn_s32(vacc4x4567)), voutput_zero_point);
328 const int16x8_t vacc4x89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc4x89AB), vqmovn_s32(vacc4xCDEF)), voutput_zero_point);
329 const int16x8_t vacc5x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc5x0123), vqmovn_s32(vacc5x4567)), voutput_zero_point);
330 const int16x8_t vacc5x89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc5x89AB), vqmovn_s32(vacc5xCDEF)), voutput_zero_point);
331
332 int8x16_t vout0x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc0x01234567), vqmovn_s16(vacc0x89ABCDEF));
333 int8x16_t vout1x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc1x01234567), vqmovn_s16(vacc1x89ABCDEF));
334 int8x16_t vout2x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc2x01234567), vqmovn_s16(vacc2x89ABCDEF));
335 int8x16_t vout3x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc3x01234567), vqmovn_s16(vacc3x89ABCDEF));
336 int8x16_t vout4x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc4x01234567), vqmovn_s16(vacc4x89ABCDEF));
337 int8x16_t vout5x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc5x01234567), vqmovn_s16(vacc5x89ABCDEF));
338 #endif
339 const int8x16_t voutput_min = vld1q_dup_s8(¶ms->neon.output_min);
340 const int8x16_t voutput_max = vld1q_dup_s8(¶ms->neon.output_max);
341
342 vout0x0123456789ABCDEF = vmaxq_s8(vout0x0123456789ABCDEF, voutput_min);
343 vout1x0123456789ABCDEF = vmaxq_s8(vout1x0123456789ABCDEF, voutput_min);
344 vout2x0123456789ABCDEF = vmaxq_s8(vout2x0123456789ABCDEF, voutput_min);
345 vout3x0123456789ABCDEF = vmaxq_s8(vout3x0123456789ABCDEF, voutput_min);
346 vout4x0123456789ABCDEF = vmaxq_s8(vout4x0123456789ABCDEF, voutput_min);
347 vout5x0123456789ABCDEF = vmaxq_s8(vout5x0123456789ABCDEF, voutput_min);
348
349 vout0x0123456789ABCDEF = vminq_s8(vout0x0123456789ABCDEF, voutput_max);
350 vout1x0123456789ABCDEF = vminq_s8(vout1x0123456789ABCDEF, voutput_max);
351 vout2x0123456789ABCDEF = vminq_s8(vout2x0123456789ABCDEF, voutput_max);
352 vout3x0123456789ABCDEF = vminq_s8(vout3x0123456789ABCDEF, voutput_max);
353 vout4x0123456789ABCDEF = vminq_s8(vout4x0123456789ABCDEF, voutput_max);
354 vout5x0123456789ABCDEF = vminq_s8(vout5x0123456789ABCDEF, voutput_max);
355
356 if (nc >= 16) {
357 // Main case where there the 16 columns fit in the destination.
358 vst1q_s8(c0 + 0, vout0x0123456789ABCDEF);
359 vst1q_s8(c1 + 0, vout1x0123456789ABCDEF);
360 vst1q_s8(c2 + 0, vout2x0123456789ABCDEF);
361 vst1q_s8(c3 + 0, vout3x0123456789ABCDEF);
362 vst1q_s8(c4 + 0, vout4x0123456789ABCDEF);
363 vst1q_s8(c5 + 0, vout5x0123456789ABCDEF);
364
365 // Advance to the next 16 columns.
366 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
367 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
368 c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
369 c3 = (int8_t*) ((uintptr_t) c3 + cn_stride);
370 c4 = (int8_t*) ((uintptr_t) c4 + cn_stride);
371 c5 = (int8_t*) ((uintptr_t) c5 + cn_stride);
372
373 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
374 a1 = (const int8_t*) ((uintptr_t) a1 - kc);
375 a2 = (const int8_t*) ((uintptr_t) a2 - kc);
376 a3 = (const int8_t*) ((uintptr_t) a3 - kc);
377 a4 = (const int8_t*) ((uintptr_t) a4 - kc);
378 a5 = (const int8_t*) ((uintptr_t) a5 - kc);
379
380 nc -= 16;
381 } else {
382 // Final case where not all of the 16 columns fit in the destination.
383 int8x16_t vout0x01234567_1x01234567 = vcombine_s8(vget_low_s8(vout0x0123456789ABCDEF), vget_low_s8(vout1x0123456789ABCDEF));
384 int8x16_t vout2x01234567_3x01234567 = vcombine_s8(vget_low_s8(vout2x0123456789ABCDEF), vget_low_s8(vout3x0123456789ABCDEF));
385 int8x16_t vout4x01234567_5x01234567 = vcombine_s8(vget_low_s8(vout4x0123456789ABCDEF), vget_low_s8(vout5x0123456789ABCDEF));
386 if (nc & 8) {
387 vst1_s8(c0, vget_low_s8(vout0x01234567_1x01234567)); c0 += 8;
388 vst1_s8(c1, vget_high_s8(vout0x01234567_1x01234567)); c1 += 8;
389 vst1_s8(c2, vget_low_s8(vout2x01234567_3x01234567)); c2 += 8;
390 vst1_s8(c3, vget_high_s8(vout2x01234567_3x01234567)); c3 += 8;
391 vst1_s8(c4, vget_low_s8(vout4x01234567_5x01234567)); c4 += 8;
392 vst1_s8(c5, vget_high_s8(vout4x01234567_5x01234567)); c5 += 8;
393 vout0x01234567_1x01234567 = vcombine_s8(vget_high_s8(vout0x0123456789ABCDEF), vget_high_s8(vout1x0123456789ABCDEF));
394 vout2x01234567_3x01234567 = vcombine_s8(vget_high_s8(vout2x0123456789ABCDEF), vget_high_s8(vout3x0123456789ABCDEF));
395 vout4x01234567_5x01234567 = vcombine_s8(vget_high_s8(vout4x0123456789ABCDEF), vget_high_s8(vout5x0123456789ABCDEF));
396 }
397 if (nc & 4) {
398 vst1q_lane_u32(__builtin_assume_aligned(c0, 1), vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
399 vst1q_lane_u32(__builtin_assume_aligned(c1, 1), vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
400 vst1q_lane_u32(__builtin_assume_aligned(c2, 1), vreinterpretq_u32_s8(vout2x01234567_3x01234567), 0); c2 += 4;
401 vst1q_lane_u32(__builtin_assume_aligned(c3, 1), vreinterpretq_u32_s8(vout2x01234567_3x01234567), 2); c3 += 4;
402 vst1q_lane_u32(__builtin_assume_aligned(c4, 1), vreinterpretq_u32_s8(vout4x01234567_5x01234567), 0); c4 += 4;
403 vst1q_lane_u32(__builtin_assume_aligned(c5, 1), vreinterpretq_u32_s8(vout4x01234567_5x01234567), 2); c5 += 4;
404 vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 4);
405 vout2x01234567_3x01234567 = vextq_s8(vout2x01234567_3x01234567, vout2x01234567_3x01234567, 4);
406 vout4x01234567_5x01234567 = vextq_s8(vout4x01234567_5x01234567, vout4x01234567_5x01234567, 4);
407 }
408 if (nc & 2) {
409 vst1q_lane_u16(__builtin_assume_aligned(c0, 1), vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
410 vst1q_lane_u16(__builtin_assume_aligned(c1, 1), vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
411 vst1q_lane_u16(__builtin_assume_aligned(c2, 1), vreinterpretq_u16_s8(vout2x01234567_3x01234567), 0); c2 += 2;
412 vst1q_lane_u16(__builtin_assume_aligned(c3, 1), vreinterpretq_u16_s8(vout2x01234567_3x01234567), 4); c3 += 2;
413 vst1q_lane_u16(__builtin_assume_aligned(c4, 1), vreinterpretq_u16_s8(vout4x01234567_5x01234567), 0); c4 += 2;
414 vst1q_lane_u16(__builtin_assume_aligned(c5, 1), vreinterpretq_u16_s8(vout4x01234567_5x01234567), 4); c5 += 2;
415 vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 2);
416 vout2x01234567_3x01234567 = vextq_s8(vout2x01234567_3x01234567, vout2x01234567_3x01234567, 2);
417 vout4x01234567_5x01234567 = vextq_s8(vout4x01234567_5x01234567, vout4x01234567_5x01234567, 2);
418 }
419 if (nc & 1) {
420 vst1q_lane_s8(c0, vout0x01234567_1x01234567, 0);
421 vst1q_lane_s8(c1, vout0x01234567_1x01234567, 8);
422 vst1q_lane_s8(c2, vout2x01234567_3x01234567, 0);
423 vst1q_lane_s8(c3, vout2x01234567_3x01234567, 8);
424 vst1q_lane_s8(c4, vout4x01234567_5x01234567, 0);
425 vst1q_lane_s8(c5, vout4x01234567_5x01234567, 8);
426 }
427
428 nc = 0;
429 }
430 } while (nc != 0);
431 }
432