1 // Auto-generated file. Do not edit!
2 //   Template: src/qs8-gemm/c16-neon-mlal-padal.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_ukernel_4x16c16__neon_mlal_padal(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_4x16c16__neon_mlal_padal(
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 {
30   assert(mr != 0);
31   assert(mr <= 4);
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, 16);
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   const int8_t* a3 = (const int8_t*) ((uintptr_t) a2 + a_stride);
55   int8_t* c3 = (int8_t*) ((uintptr_t) c2 + cm_stride);
56   if XNN_UNPREDICTABLE(mr != 4) {
57     a3 = a2;
58     c3 = c2;
59   }
60 
61   do {
62     int32x4_t vacc0x0 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
63     int32x4_t vacc0x1 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
64     int32x4_t vacc0x2 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
65     int32x4_t vacc0x3 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
66     int32x4_t vacc0x4 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
67     int32x4_t vacc0x5 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
68     int32x4_t vacc0x6 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
69     int32x4_t vacc0x7 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
70     int32x4_t vacc0x8 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
71     int32x4_t vacc0x9 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
72     int32x4_t vacc0x10 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
73     int32x4_t vacc0x11 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
74     int32x4_t vacc0x12 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
75     int32x4_t vacc0x13 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
76     int32x4_t vacc0x14 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
77     int32x4_t vacc0x15 = vld1q_lane_s32(w, vmovq_n_s32(0), 0); w = (const void*) ((uintptr_t) w + sizeof(int32_t));
78     int32x4_t vacc1x0 = vacc0x0;
79     int32x4_t vacc1x1 = vacc0x1;
80     int32x4_t vacc1x2 = vacc0x2;
81     int32x4_t vacc1x3 = vacc0x3;
82     int32x4_t vacc1x4 = vacc0x4;
83     int32x4_t vacc1x5 = vacc0x5;
84     int32x4_t vacc1x6 = vacc0x6;
85     int32x4_t vacc1x7 = vacc0x7;
86     int32x4_t vacc1x8 = vacc0x8;
87     int32x4_t vacc1x9 = vacc0x9;
88     int32x4_t vacc1x10 = vacc0x10;
89     int32x4_t vacc1x11 = vacc0x11;
90     int32x4_t vacc1x12 = vacc0x12;
91     int32x4_t vacc1x13 = vacc0x13;
92     int32x4_t vacc1x14 = vacc0x14;
93     int32x4_t vacc1x15 = vacc0x15;
94     int32x4_t vacc2x0 = vacc0x0;
95     int32x4_t vacc2x1 = vacc0x1;
96     int32x4_t vacc2x2 = vacc0x2;
97     int32x4_t vacc2x3 = vacc0x3;
98     int32x4_t vacc2x4 = vacc0x4;
99     int32x4_t vacc2x5 = vacc0x5;
100     int32x4_t vacc2x6 = vacc0x6;
101     int32x4_t vacc2x7 = vacc0x7;
102     int32x4_t vacc2x8 = vacc0x8;
103     int32x4_t vacc2x9 = vacc0x9;
104     int32x4_t vacc2x10 = vacc0x10;
105     int32x4_t vacc2x11 = vacc0x11;
106     int32x4_t vacc2x12 = vacc0x12;
107     int32x4_t vacc2x13 = vacc0x13;
108     int32x4_t vacc2x14 = vacc0x14;
109     int32x4_t vacc2x15 = vacc0x15;
110     int32x4_t vacc3x0 = vacc0x0;
111     int32x4_t vacc3x1 = vacc0x1;
112     int32x4_t vacc3x2 = vacc0x2;
113     int32x4_t vacc3x3 = vacc0x3;
114     int32x4_t vacc3x4 = vacc0x4;
115     int32x4_t vacc3x5 = vacc0x5;
116     int32x4_t vacc3x6 = vacc0x6;
117     int32x4_t vacc3x7 = vacc0x7;
118     int32x4_t vacc3x8 = vacc0x8;
119     int32x4_t vacc3x9 = vacc0x9;
120     int32x4_t vacc3x10 = vacc0x10;
121     int32x4_t vacc3x11 = vacc0x11;
122     int32x4_t vacc3x12 = vacc0x12;
123     int32x4_t vacc3x13 = vacc0x13;
124     int32x4_t vacc3x14 = vacc0x14;
125     int32x4_t vacc3x15 = vacc0x15;
126 
127     // KC loop of 16
128     size_t k = 0;
129     while (k < kc) {
130       const int8x16_t va0 = vld1q_s8(a0); a0 += 16;
131       const int8x16_t va1 = vld1q_s8(a1); a1 += 16;
132       const int8x16_t va2 = vld1q_s8(a2); a2 += 16;
133       const int8x16_t va3 = vld1q_s8(a3); a3 += 16;
134 
135       const int8x16_t vb0 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
136       const int8x16_t vb1 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
137       const int8x16_t vb2 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
138       const int8x16_t vb3 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
139       const int8x16_t vb4 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
140       const int8x16_t vb5 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
141       const int8x16_t vb6 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
142       const int8x16_t vb7 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
143       const int8x16_t vb8 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
144       const int8x16_t vb9 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
145       const int8x16_t vb10 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
146       const int8x16_t vb11 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
147       const int8x16_t vb12 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
148       const int8x16_t vb13 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
149       const int8x16_t vb14 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
150       const int8x16_t vb15 = vld1q_s8(w); w = (const void*) ((uintptr_t) w + 16 * sizeof(int8_t));
151 
152       int16x8_t vprod0x0 = vmull_s8(vget_low_s8(vb0), vget_low_s8(va0));
153       int16x8_t vprod1x0 = vmull_s8(vget_low_s8(vb0), vget_low_s8(va1));
154       int16x8_t vprod2x0 = vmull_s8(vget_low_s8(vb0), vget_low_s8(va2));
155       int16x8_t vprod3x0 = vmull_s8(vget_low_s8(vb0), vget_low_s8(va3));
156       vprod0x0 = vmlal_s8(vprod0x0, vget_high_s8(vb0), vget_high_s8(va0));
157       vprod1x0 = vmlal_s8(vprod1x0, vget_high_s8(vb0), vget_high_s8(va1));
158       vprod2x0 = vmlal_s8(vprod2x0, vget_high_s8(vb0), vget_high_s8(va2));
159       vprod3x0 = vmlal_s8(vprod3x0, vget_high_s8(vb0), vget_high_s8(va3));
160       vacc0x0 = vpadalq_s16(vacc0x0, vprod0x0);
161       vacc1x0 = vpadalq_s16(vacc1x0, vprod1x0);
162       vacc2x0 = vpadalq_s16(vacc2x0, vprod2x0);
163       vacc3x0 = vpadalq_s16(vacc3x0, vprod3x0);
164       int16x8_t vprod0x1 = vmull_s8(vget_low_s8(vb1), vget_low_s8(va0));
165       int16x8_t vprod1x1 = vmull_s8(vget_low_s8(vb1), vget_low_s8(va1));
166       int16x8_t vprod2x1 = vmull_s8(vget_low_s8(vb1), vget_low_s8(va2));
167       int16x8_t vprod3x1 = vmull_s8(vget_low_s8(vb1), vget_low_s8(va3));
168       vprod0x1 = vmlal_s8(vprod0x1, vget_high_s8(vb1), vget_high_s8(va0));
169       vprod1x1 = vmlal_s8(vprod1x1, vget_high_s8(vb1), vget_high_s8(va1));
170       vprod2x1 = vmlal_s8(vprod2x1, vget_high_s8(vb1), vget_high_s8(va2));
171       vprod3x1 = vmlal_s8(vprod3x1, vget_high_s8(vb1), vget_high_s8(va3));
172       vacc0x1 = vpadalq_s16(vacc0x1, vprod0x1);
173       vacc1x1 = vpadalq_s16(vacc1x1, vprod1x1);
174       vacc2x1 = vpadalq_s16(vacc2x1, vprod2x1);
175       vacc3x1 = vpadalq_s16(vacc3x1, vprod3x1);
176       int16x8_t vprod0x2 = vmull_s8(vget_low_s8(vb2), vget_low_s8(va0));
177       int16x8_t vprod1x2 = vmull_s8(vget_low_s8(vb2), vget_low_s8(va1));
178       int16x8_t vprod2x2 = vmull_s8(vget_low_s8(vb2), vget_low_s8(va2));
179       int16x8_t vprod3x2 = vmull_s8(vget_low_s8(vb2), vget_low_s8(va3));
180       vprod0x2 = vmlal_s8(vprod0x2, vget_high_s8(vb2), vget_high_s8(va0));
181       vprod1x2 = vmlal_s8(vprod1x2, vget_high_s8(vb2), vget_high_s8(va1));
182       vprod2x2 = vmlal_s8(vprod2x2, vget_high_s8(vb2), vget_high_s8(va2));
183       vprod3x2 = vmlal_s8(vprod3x2, vget_high_s8(vb2), vget_high_s8(va3));
184       vacc0x2 = vpadalq_s16(vacc0x2, vprod0x2);
185       vacc1x2 = vpadalq_s16(vacc1x2, vprod1x2);
186       vacc2x2 = vpadalq_s16(vacc2x2, vprod2x2);
187       vacc3x2 = vpadalq_s16(vacc3x2, vprod3x2);
188       int16x8_t vprod0x3 = vmull_s8(vget_low_s8(vb3), vget_low_s8(va0));
189       int16x8_t vprod1x3 = vmull_s8(vget_low_s8(vb3), vget_low_s8(va1));
190       int16x8_t vprod2x3 = vmull_s8(vget_low_s8(vb3), vget_low_s8(va2));
191       int16x8_t vprod3x3 = vmull_s8(vget_low_s8(vb3), vget_low_s8(va3));
192       vprod0x3 = vmlal_s8(vprod0x3, vget_high_s8(vb3), vget_high_s8(va0));
193       vprod1x3 = vmlal_s8(vprod1x3, vget_high_s8(vb3), vget_high_s8(va1));
194       vprod2x3 = vmlal_s8(vprod2x3, vget_high_s8(vb3), vget_high_s8(va2));
195       vprod3x3 = vmlal_s8(vprod3x3, vget_high_s8(vb3), vget_high_s8(va3));
196       vacc0x3 = vpadalq_s16(vacc0x3, vprod0x3);
197       vacc1x3 = vpadalq_s16(vacc1x3, vprod1x3);
198       vacc2x3 = vpadalq_s16(vacc2x3, vprod2x3);
199       vacc3x3 = vpadalq_s16(vacc3x3, vprod3x3);
200       int16x8_t vprod0x4 = vmull_s8(vget_low_s8(vb4), vget_low_s8(va0));
201       int16x8_t vprod1x4 = vmull_s8(vget_low_s8(vb4), vget_low_s8(va1));
202       int16x8_t vprod2x4 = vmull_s8(vget_low_s8(vb4), vget_low_s8(va2));
203       int16x8_t vprod3x4 = vmull_s8(vget_low_s8(vb4), vget_low_s8(va3));
204       vprod0x4 = vmlal_s8(vprod0x4, vget_high_s8(vb4), vget_high_s8(va0));
205       vprod1x4 = vmlal_s8(vprod1x4, vget_high_s8(vb4), vget_high_s8(va1));
206       vprod2x4 = vmlal_s8(vprod2x4, vget_high_s8(vb4), vget_high_s8(va2));
207       vprod3x4 = vmlal_s8(vprod3x4, vget_high_s8(vb4), vget_high_s8(va3));
208       vacc0x4 = vpadalq_s16(vacc0x4, vprod0x4);
209       vacc1x4 = vpadalq_s16(vacc1x4, vprod1x4);
210       vacc2x4 = vpadalq_s16(vacc2x4, vprod2x4);
211       vacc3x4 = vpadalq_s16(vacc3x4, vprod3x4);
212       int16x8_t vprod0x5 = vmull_s8(vget_low_s8(vb5), vget_low_s8(va0));
213       int16x8_t vprod1x5 = vmull_s8(vget_low_s8(vb5), vget_low_s8(va1));
214       int16x8_t vprod2x5 = vmull_s8(vget_low_s8(vb5), vget_low_s8(va2));
215       int16x8_t vprod3x5 = vmull_s8(vget_low_s8(vb5), vget_low_s8(va3));
216       vprod0x5 = vmlal_s8(vprod0x5, vget_high_s8(vb5), vget_high_s8(va0));
217       vprod1x5 = vmlal_s8(vprod1x5, vget_high_s8(vb5), vget_high_s8(va1));
218       vprod2x5 = vmlal_s8(vprod2x5, vget_high_s8(vb5), vget_high_s8(va2));
219       vprod3x5 = vmlal_s8(vprod3x5, vget_high_s8(vb5), vget_high_s8(va3));
220       vacc0x5 = vpadalq_s16(vacc0x5, vprod0x5);
221       vacc1x5 = vpadalq_s16(vacc1x5, vprod1x5);
222       vacc2x5 = vpadalq_s16(vacc2x5, vprod2x5);
223       vacc3x5 = vpadalq_s16(vacc3x5, vprod3x5);
224       int16x8_t vprod0x6 = vmull_s8(vget_low_s8(vb6), vget_low_s8(va0));
225       int16x8_t vprod1x6 = vmull_s8(vget_low_s8(vb6), vget_low_s8(va1));
226       int16x8_t vprod2x6 = vmull_s8(vget_low_s8(vb6), vget_low_s8(va2));
227       int16x8_t vprod3x6 = vmull_s8(vget_low_s8(vb6), vget_low_s8(va3));
228       vprod0x6 = vmlal_s8(vprod0x6, vget_high_s8(vb6), vget_high_s8(va0));
229       vprod1x6 = vmlal_s8(vprod1x6, vget_high_s8(vb6), vget_high_s8(va1));
230       vprod2x6 = vmlal_s8(vprod2x6, vget_high_s8(vb6), vget_high_s8(va2));
231       vprod3x6 = vmlal_s8(vprod3x6, vget_high_s8(vb6), vget_high_s8(va3));
232       vacc0x6 = vpadalq_s16(vacc0x6, vprod0x6);
233       vacc1x6 = vpadalq_s16(vacc1x6, vprod1x6);
234       vacc2x6 = vpadalq_s16(vacc2x6, vprod2x6);
235       vacc3x6 = vpadalq_s16(vacc3x6, vprod3x6);
236       int16x8_t vprod0x7 = vmull_s8(vget_low_s8(vb7), vget_low_s8(va0));
237       int16x8_t vprod1x7 = vmull_s8(vget_low_s8(vb7), vget_low_s8(va1));
238       int16x8_t vprod2x7 = vmull_s8(vget_low_s8(vb7), vget_low_s8(va2));
239       int16x8_t vprod3x7 = vmull_s8(vget_low_s8(vb7), vget_low_s8(va3));
240       vprod0x7 = vmlal_s8(vprod0x7, vget_high_s8(vb7), vget_high_s8(va0));
241       vprod1x7 = vmlal_s8(vprod1x7, vget_high_s8(vb7), vget_high_s8(va1));
242       vprod2x7 = vmlal_s8(vprod2x7, vget_high_s8(vb7), vget_high_s8(va2));
243       vprod3x7 = vmlal_s8(vprod3x7, vget_high_s8(vb7), vget_high_s8(va3));
244       vacc0x7 = vpadalq_s16(vacc0x7, vprod0x7);
245       vacc1x7 = vpadalq_s16(vacc1x7, vprod1x7);
246       vacc2x7 = vpadalq_s16(vacc2x7, vprod2x7);
247       vacc3x7 = vpadalq_s16(vacc3x7, vprod3x7);
248       int16x8_t vprod0x8 = vmull_s8(vget_low_s8(vb8), vget_low_s8(va0));
249       int16x8_t vprod1x8 = vmull_s8(vget_low_s8(vb8), vget_low_s8(va1));
250       int16x8_t vprod2x8 = vmull_s8(vget_low_s8(vb8), vget_low_s8(va2));
251       int16x8_t vprod3x8 = vmull_s8(vget_low_s8(vb8), vget_low_s8(va3));
252       vprod0x8 = vmlal_s8(vprod0x8, vget_high_s8(vb8), vget_high_s8(va0));
253       vprod1x8 = vmlal_s8(vprod1x8, vget_high_s8(vb8), vget_high_s8(va1));
254       vprod2x8 = vmlal_s8(vprod2x8, vget_high_s8(vb8), vget_high_s8(va2));
255       vprod3x8 = vmlal_s8(vprod3x8, vget_high_s8(vb8), vget_high_s8(va3));
256       vacc0x8 = vpadalq_s16(vacc0x8, vprod0x8);
257       vacc1x8 = vpadalq_s16(vacc1x8, vprod1x8);
258       vacc2x8 = vpadalq_s16(vacc2x8, vprod2x8);
259       vacc3x8 = vpadalq_s16(vacc3x8, vprod3x8);
260       int16x8_t vprod0x9 = vmull_s8(vget_low_s8(vb9), vget_low_s8(va0));
261       int16x8_t vprod1x9 = vmull_s8(vget_low_s8(vb9), vget_low_s8(va1));
262       int16x8_t vprod2x9 = vmull_s8(vget_low_s8(vb9), vget_low_s8(va2));
263       int16x8_t vprod3x9 = vmull_s8(vget_low_s8(vb9), vget_low_s8(va3));
264       vprod0x9 = vmlal_s8(vprod0x9, vget_high_s8(vb9), vget_high_s8(va0));
265       vprod1x9 = vmlal_s8(vprod1x9, vget_high_s8(vb9), vget_high_s8(va1));
266       vprod2x9 = vmlal_s8(vprod2x9, vget_high_s8(vb9), vget_high_s8(va2));
267       vprod3x9 = vmlal_s8(vprod3x9, vget_high_s8(vb9), vget_high_s8(va3));
268       vacc0x9 = vpadalq_s16(vacc0x9, vprod0x9);
269       vacc1x9 = vpadalq_s16(vacc1x9, vprod1x9);
270       vacc2x9 = vpadalq_s16(vacc2x9, vprod2x9);
271       vacc3x9 = vpadalq_s16(vacc3x9, vprod3x9);
272       int16x8_t vprod0x10 = vmull_s8(vget_low_s8(vb10), vget_low_s8(va0));
273       int16x8_t vprod1x10 = vmull_s8(vget_low_s8(vb10), vget_low_s8(va1));
274       int16x8_t vprod2x10 = vmull_s8(vget_low_s8(vb10), vget_low_s8(va2));
275       int16x8_t vprod3x10 = vmull_s8(vget_low_s8(vb10), vget_low_s8(va3));
276       vprod0x10 = vmlal_s8(vprod0x10, vget_high_s8(vb10), vget_high_s8(va0));
277       vprod1x10 = vmlal_s8(vprod1x10, vget_high_s8(vb10), vget_high_s8(va1));
278       vprod2x10 = vmlal_s8(vprod2x10, vget_high_s8(vb10), vget_high_s8(va2));
279       vprod3x10 = vmlal_s8(vprod3x10, vget_high_s8(vb10), vget_high_s8(va3));
280       vacc0x10 = vpadalq_s16(vacc0x10, vprod0x10);
281       vacc1x10 = vpadalq_s16(vacc1x10, vprod1x10);
282       vacc2x10 = vpadalq_s16(vacc2x10, vprod2x10);
283       vacc3x10 = vpadalq_s16(vacc3x10, vprod3x10);
284       int16x8_t vprod0x11 = vmull_s8(vget_low_s8(vb11), vget_low_s8(va0));
285       int16x8_t vprod1x11 = vmull_s8(vget_low_s8(vb11), vget_low_s8(va1));
286       int16x8_t vprod2x11 = vmull_s8(vget_low_s8(vb11), vget_low_s8(va2));
287       int16x8_t vprod3x11 = vmull_s8(vget_low_s8(vb11), vget_low_s8(va3));
288       vprod0x11 = vmlal_s8(vprod0x11, vget_high_s8(vb11), vget_high_s8(va0));
289       vprod1x11 = vmlal_s8(vprod1x11, vget_high_s8(vb11), vget_high_s8(va1));
290       vprod2x11 = vmlal_s8(vprod2x11, vget_high_s8(vb11), vget_high_s8(va2));
291       vprod3x11 = vmlal_s8(vprod3x11, vget_high_s8(vb11), vget_high_s8(va3));
292       vacc0x11 = vpadalq_s16(vacc0x11, vprod0x11);
293       vacc1x11 = vpadalq_s16(vacc1x11, vprod1x11);
294       vacc2x11 = vpadalq_s16(vacc2x11, vprod2x11);
295       vacc3x11 = vpadalq_s16(vacc3x11, vprod3x11);
296       int16x8_t vprod0x12 = vmull_s8(vget_low_s8(vb12), vget_low_s8(va0));
297       int16x8_t vprod1x12 = vmull_s8(vget_low_s8(vb12), vget_low_s8(va1));
298       int16x8_t vprod2x12 = vmull_s8(vget_low_s8(vb12), vget_low_s8(va2));
299       int16x8_t vprod3x12 = vmull_s8(vget_low_s8(vb12), vget_low_s8(va3));
300       vprod0x12 = vmlal_s8(vprod0x12, vget_high_s8(vb12), vget_high_s8(va0));
301       vprod1x12 = vmlal_s8(vprod1x12, vget_high_s8(vb12), vget_high_s8(va1));
302       vprod2x12 = vmlal_s8(vprod2x12, vget_high_s8(vb12), vget_high_s8(va2));
303       vprod3x12 = vmlal_s8(vprod3x12, vget_high_s8(vb12), vget_high_s8(va3));
304       vacc0x12 = vpadalq_s16(vacc0x12, vprod0x12);
305       vacc1x12 = vpadalq_s16(vacc1x12, vprod1x12);
306       vacc2x12 = vpadalq_s16(vacc2x12, vprod2x12);
307       vacc3x12 = vpadalq_s16(vacc3x12, vprod3x12);
308       int16x8_t vprod0x13 = vmull_s8(vget_low_s8(vb13), vget_low_s8(va0));
309       int16x8_t vprod1x13 = vmull_s8(vget_low_s8(vb13), vget_low_s8(va1));
310       int16x8_t vprod2x13 = vmull_s8(vget_low_s8(vb13), vget_low_s8(va2));
311       int16x8_t vprod3x13 = vmull_s8(vget_low_s8(vb13), vget_low_s8(va3));
312       vprod0x13 = vmlal_s8(vprod0x13, vget_high_s8(vb13), vget_high_s8(va0));
313       vprod1x13 = vmlal_s8(vprod1x13, vget_high_s8(vb13), vget_high_s8(va1));
314       vprod2x13 = vmlal_s8(vprod2x13, vget_high_s8(vb13), vget_high_s8(va2));
315       vprod3x13 = vmlal_s8(vprod3x13, vget_high_s8(vb13), vget_high_s8(va3));
316       vacc0x13 = vpadalq_s16(vacc0x13, vprod0x13);
317       vacc1x13 = vpadalq_s16(vacc1x13, vprod1x13);
318       vacc2x13 = vpadalq_s16(vacc2x13, vprod2x13);
319       vacc3x13 = vpadalq_s16(vacc3x13, vprod3x13);
320       int16x8_t vprod0x14 = vmull_s8(vget_low_s8(vb14), vget_low_s8(va0));
321       int16x8_t vprod1x14 = vmull_s8(vget_low_s8(vb14), vget_low_s8(va1));
322       int16x8_t vprod2x14 = vmull_s8(vget_low_s8(vb14), vget_low_s8(va2));
323       int16x8_t vprod3x14 = vmull_s8(vget_low_s8(vb14), vget_low_s8(va3));
324       vprod0x14 = vmlal_s8(vprod0x14, vget_high_s8(vb14), vget_high_s8(va0));
325       vprod1x14 = vmlal_s8(vprod1x14, vget_high_s8(vb14), vget_high_s8(va1));
326       vprod2x14 = vmlal_s8(vprod2x14, vget_high_s8(vb14), vget_high_s8(va2));
327       vprod3x14 = vmlal_s8(vprod3x14, vget_high_s8(vb14), vget_high_s8(va3));
328       vacc0x14 = vpadalq_s16(vacc0x14, vprod0x14);
329       vacc1x14 = vpadalq_s16(vacc1x14, vprod1x14);
330       vacc2x14 = vpadalq_s16(vacc2x14, vprod2x14);
331       vacc3x14 = vpadalq_s16(vacc3x14, vprod3x14);
332       int16x8_t vprod0x15 = vmull_s8(vget_low_s8(vb15), vget_low_s8(va0));
333       int16x8_t vprod1x15 = vmull_s8(vget_low_s8(vb15), vget_low_s8(va1));
334       int16x8_t vprod2x15 = vmull_s8(vget_low_s8(vb15), vget_low_s8(va2));
335       int16x8_t vprod3x15 = vmull_s8(vget_low_s8(vb15), vget_low_s8(va3));
336       vprod0x15 = vmlal_s8(vprod0x15, vget_high_s8(vb15), vget_high_s8(va0));
337       vprod1x15 = vmlal_s8(vprod1x15, vget_high_s8(vb15), vget_high_s8(va1));
338       vprod2x15 = vmlal_s8(vprod2x15, vget_high_s8(vb15), vget_high_s8(va2));
339       vprod3x15 = vmlal_s8(vprod3x15, vget_high_s8(vb15), vget_high_s8(va3));
340       vacc0x15 = vpadalq_s16(vacc0x15, vprod0x15);
341       vacc1x15 = vpadalq_s16(vacc1x15, vprod1x15);
342       vacc2x15 = vpadalq_s16(vacc2x15, vprod2x15);
343       vacc3x15 = vpadalq_s16(vacc3x15, vprod3x15);
344 
345       k += 16 * sizeof(int8_t);
346     }
347 
348 #if XNN_ARCH_ARM64
349     const int32x4_t vsum0x01 = vpaddq_s32(vacc0x0, vacc0x1);
350     const int32x4_t vsum0x23 = vpaddq_s32(vacc0x2, vacc0x3);
351     const int32x4_t vsum0x45 = vpaddq_s32(vacc0x4, vacc0x5);
352     const int32x4_t vsum0x67 = vpaddq_s32(vacc0x6, vacc0x7);
353     const int32x4_t vsum0x89 = vpaddq_s32(vacc0x8, vacc0x9);
354     const int32x4_t vsum0xAB = vpaddq_s32(vacc0x10, vacc0x11);
355     const int32x4_t vsum0xCD = vpaddq_s32(vacc0x12, vacc0x13);
356     const int32x4_t vsum0xEF = vpaddq_s32(vacc0x14, vacc0x15);
357     const int32x4_t vsum1x01 = vpaddq_s32(vacc1x0, vacc1x1);
358     const int32x4_t vsum1x23 = vpaddq_s32(vacc1x2, vacc1x3);
359     const int32x4_t vsum1x45 = vpaddq_s32(vacc1x4, vacc1x5);
360     const int32x4_t vsum1x67 = vpaddq_s32(vacc1x6, vacc1x7);
361     const int32x4_t vsum1x89 = vpaddq_s32(vacc1x8, vacc1x9);
362     const int32x4_t vsum1xAB = vpaddq_s32(vacc1x10, vacc1x11);
363     const int32x4_t vsum1xCD = vpaddq_s32(vacc1x12, vacc1x13);
364     const int32x4_t vsum1xEF = vpaddq_s32(vacc1x14, vacc1x15);
365     const int32x4_t vsum2x01 = vpaddq_s32(vacc2x0, vacc2x1);
366     const int32x4_t vsum2x23 = vpaddq_s32(vacc2x2, vacc2x3);
367     const int32x4_t vsum2x45 = vpaddq_s32(vacc2x4, vacc2x5);
368     const int32x4_t vsum2x67 = vpaddq_s32(vacc2x6, vacc2x7);
369     const int32x4_t vsum2x89 = vpaddq_s32(vacc2x8, vacc2x9);
370     const int32x4_t vsum2xAB = vpaddq_s32(vacc2x10, vacc2x11);
371     const int32x4_t vsum2xCD = vpaddq_s32(vacc2x12, vacc2x13);
372     const int32x4_t vsum2xEF = vpaddq_s32(vacc2x14, vacc2x15);
373     const int32x4_t vsum3x01 = vpaddq_s32(vacc3x0, vacc3x1);
374     const int32x4_t vsum3x23 = vpaddq_s32(vacc3x2, vacc3x3);
375     const int32x4_t vsum3x45 = vpaddq_s32(vacc3x4, vacc3x5);
376     const int32x4_t vsum3x67 = vpaddq_s32(vacc3x6, vacc3x7);
377     const int32x4_t vsum3x89 = vpaddq_s32(vacc3x8, vacc3x9);
378     const int32x4_t vsum3xAB = vpaddq_s32(vacc3x10, vacc3x11);
379     const int32x4_t vsum3xCD = vpaddq_s32(vacc3x12, vacc3x13);
380     const int32x4_t vsum3xEF = vpaddq_s32(vacc3x14, vacc3x15);
381     int32x4_t vacc0x0123 = vpaddq_s32(vsum0x01, vsum0x23);
382     int32x4_t vacc0x4567 = vpaddq_s32(vsum0x45, vsum0x67);
383     int32x4_t vacc0x89AB = vpaddq_s32(vsum0x89, vsum0xAB);
384     int32x4_t vacc0xCDEF = vpaddq_s32(vsum0xCD, vsum0xEF);
385     int32x4_t vacc1x0123 = vpaddq_s32(vsum1x01, vsum1x23);
386     int32x4_t vacc1x4567 = vpaddq_s32(vsum1x45, vsum1x67);
387     int32x4_t vacc1x89AB = vpaddq_s32(vsum1x89, vsum1xAB);
388     int32x4_t vacc1xCDEF = vpaddq_s32(vsum1xCD, vsum1xEF);
389     int32x4_t vacc2x0123 = vpaddq_s32(vsum2x01, vsum2x23);
390     int32x4_t vacc2x4567 = vpaddq_s32(vsum2x45, vsum2x67);
391     int32x4_t vacc2x89AB = vpaddq_s32(vsum2x89, vsum2xAB);
392     int32x4_t vacc2xCDEF = vpaddq_s32(vsum2xCD, vsum2xEF);
393     int32x4_t vacc3x0123 = vpaddq_s32(vsum3x01, vsum3x23);
394     int32x4_t vacc3x4567 = vpaddq_s32(vsum3x45, vsum3x67);
395     int32x4_t vacc3x89AB = vpaddq_s32(vsum3x89, vsum3xAB);
396     int32x4_t vacc3xCDEF = vpaddq_s32(vsum3xCD, vsum3xEF);
397 #else
398     const int32x2_t vpsum0x0 = vadd_s32(vget_low_s32(vacc0x0), vget_high_s32(vacc0x0));
399     const int32x2_t vpsum0x1 = vadd_s32(vget_low_s32(vacc0x1), vget_high_s32(vacc0x1));
400     const int32x2_t vpsum0x2 = vadd_s32(vget_low_s32(vacc0x2), vget_high_s32(vacc0x2));
401     const int32x2_t vpsum0x3 = vadd_s32(vget_low_s32(vacc0x3), vget_high_s32(vacc0x3));
402     const int32x2_t vsum0x01 = vpadd_s32(vpsum0x0, vpsum0x1);
403     const int32x2_t vsum0x23 = vpadd_s32(vpsum0x2, vpsum0x3);
404     int32x4_t vacc0x0123 = vcombine_s32(vsum0x01, vsum0x23 );
405     const int32x2_t vpsum0x4 = vadd_s32(vget_low_s32(vacc0x4), vget_high_s32(vacc0x4));
406     const int32x2_t vpsum0x5 = vadd_s32(vget_low_s32(vacc0x5), vget_high_s32(vacc0x5));
407     const int32x2_t vpsum0x6 = vadd_s32(vget_low_s32(vacc0x6), vget_high_s32(vacc0x6));
408     const int32x2_t vpsum0x7 = vadd_s32(vget_low_s32(vacc0x7), vget_high_s32(vacc0x7));
409     const int32x2_t vsum0x45 = vpadd_s32(vpsum0x4, vpsum0x5);
410     const int32x2_t vsum0x67 = vpadd_s32(vpsum0x6, vpsum0x7);
411     int32x4_t vacc0x4567 = vcombine_s32(vsum0x45, vsum0x67 );
412     const int32x2_t vpsum0x8 = vadd_s32(vget_low_s32(vacc0x8), vget_high_s32(vacc0x8));
413     const int32x2_t vpsum0x9 = vadd_s32(vget_low_s32(vacc0x9), vget_high_s32(vacc0x9));
414     const int32x2_t vpsum0xA = vadd_s32(vget_low_s32(vacc0x10), vget_high_s32(vacc0x10));
415     const int32x2_t vpsum0xB = vadd_s32(vget_low_s32(vacc0x11), vget_high_s32(vacc0x11));
416     const int32x2_t vsum0x89 = vpadd_s32(vpsum0x8, vpsum0x9);
417     const int32x2_t vsum0xAB = vpadd_s32(vpsum0xA, vpsum0xB);
418     int32x4_t vacc0x89AB = vcombine_s32(vsum0x89, vsum0xAB );
419     const int32x2_t vpsum0xC = vadd_s32(vget_low_s32(vacc0x12), vget_high_s32(vacc0x12));
420     const int32x2_t vpsum0xD = vadd_s32(vget_low_s32(vacc0x13), vget_high_s32(vacc0x13));
421     const int32x2_t vpsum0xE = vadd_s32(vget_low_s32(vacc0x14), vget_high_s32(vacc0x14));
422     const int32x2_t vpsum0xF = vadd_s32(vget_low_s32(vacc0x15), vget_high_s32(vacc0x15));
423     const int32x2_t vsum0xCD = vpadd_s32(vpsum0xC, vpsum0xD);
424     const int32x2_t vsum0xEF = vpadd_s32(vpsum0xE, vpsum0xF);
425     int32x4_t vacc0xCDEF = vcombine_s32(vsum0xCD, vsum0xEF );
426     const int32x2_t vpsum1x0 = vadd_s32(vget_low_s32(vacc1x0), vget_high_s32(vacc1x0));
427     const int32x2_t vpsum1x1 = vadd_s32(vget_low_s32(vacc1x1), vget_high_s32(vacc1x1));
428     const int32x2_t vpsum1x2 = vadd_s32(vget_low_s32(vacc1x2), vget_high_s32(vacc1x2));
429     const int32x2_t vpsum1x3 = vadd_s32(vget_low_s32(vacc1x3), vget_high_s32(vacc1x3));
430     const int32x2_t vsum1x01 = vpadd_s32(vpsum1x0, vpsum1x1);
431     const int32x2_t vsum1x23 = vpadd_s32(vpsum1x2, vpsum1x3);
432     int32x4_t vacc1x0123 = vcombine_s32(vsum1x01, vsum1x23 );
433     const int32x2_t vpsum1x4 = vadd_s32(vget_low_s32(vacc1x4), vget_high_s32(vacc1x4));
434     const int32x2_t vpsum1x5 = vadd_s32(vget_low_s32(vacc1x5), vget_high_s32(vacc1x5));
435     const int32x2_t vpsum1x6 = vadd_s32(vget_low_s32(vacc1x6), vget_high_s32(vacc1x6));
436     const int32x2_t vpsum1x7 = vadd_s32(vget_low_s32(vacc1x7), vget_high_s32(vacc1x7));
437     const int32x2_t vsum1x45 = vpadd_s32(vpsum1x4, vpsum1x5);
438     const int32x2_t vsum1x67 = vpadd_s32(vpsum1x6, vpsum1x7);
439     int32x4_t vacc1x4567 = vcombine_s32(vsum1x45, vsum1x67 );
440     const int32x2_t vpsum1x8 = vadd_s32(vget_low_s32(vacc1x8), vget_high_s32(vacc1x8));
441     const int32x2_t vpsum1x9 = vadd_s32(vget_low_s32(vacc1x9), vget_high_s32(vacc1x9));
442     const int32x2_t vpsum1xA = vadd_s32(vget_low_s32(vacc1x10), vget_high_s32(vacc1x10));
443     const int32x2_t vpsum1xB = vadd_s32(vget_low_s32(vacc1x11), vget_high_s32(vacc1x11));
444     const int32x2_t vsum1x89 = vpadd_s32(vpsum1x8, vpsum1x9);
445     const int32x2_t vsum1xAB = vpadd_s32(vpsum1xA, vpsum1xB);
446     int32x4_t vacc1x89AB = vcombine_s32(vsum1x89, vsum1xAB );
447     const int32x2_t vpsum1xC = vadd_s32(vget_low_s32(vacc1x12), vget_high_s32(vacc1x12));
448     const int32x2_t vpsum1xD = vadd_s32(vget_low_s32(vacc1x13), vget_high_s32(vacc1x13));
449     const int32x2_t vpsum1xE = vadd_s32(vget_low_s32(vacc1x14), vget_high_s32(vacc1x14));
450     const int32x2_t vpsum1xF = vadd_s32(vget_low_s32(vacc1x15), vget_high_s32(vacc1x15));
451     const int32x2_t vsum1xCD = vpadd_s32(vpsum1xC, vpsum1xD);
452     const int32x2_t vsum1xEF = vpadd_s32(vpsum1xE, vpsum1xF);
453     int32x4_t vacc1xCDEF = vcombine_s32(vsum1xCD, vsum1xEF );
454     const int32x2_t vpsum2x0 = vadd_s32(vget_low_s32(vacc2x0), vget_high_s32(vacc2x0));
455     const int32x2_t vpsum2x1 = vadd_s32(vget_low_s32(vacc2x1), vget_high_s32(vacc2x1));
456     const int32x2_t vpsum2x2 = vadd_s32(vget_low_s32(vacc2x2), vget_high_s32(vacc2x2));
457     const int32x2_t vpsum2x3 = vadd_s32(vget_low_s32(vacc2x3), vget_high_s32(vacc2x3));
458     const int32x2_t vsum2x01 = vpadd_s32(vpsum2x0, vpsum2x1);
459     const int32x2_t vsum2x23 = vpadd_s32(vpsum2x2, vpsum2x3);
460     int32x4_t vacc2x0123 = vcombine_s32(vsum2x01, vsum2x23 );
461     const int32x2_t vpsum2x4 = vadd_s32(vget_low_s32(vacc2x4), vget_high_s32(vacc2x4));
462     const int32x2_t vpsum2x5 = vadd_s32(vget_low_s32(vacc2x5), vget_high_s32(vacc2x5));
463     const int32x2_t vpsum2x6 = vadd_s32(vget_low_s32(vacc2x6), vget_high_s32(vacc2x6));
464     const int32x2_t vpsum2x7 = vadd_s32(vget_low_s32(vacc2x7), vget_high_s32(vacc2x7));
465     const int32x2_t vsum2x45 = vpadd_s32(vpsum2x4, vpsum2x5);
466     const int32x2_t vsum2x67 = vpadd_s32(vpsum2x6, vpsum2x7);
467     int32x4_t vacc2x4567 = vcombine_s32(vsum2x45, vsum2x67 );
468     const int32x2_t vpsum2x8 = vadd_s32(vget_low_s32(vacc2x8), vget_high_s32(vacc2x8));
469     const int32x2_t vpsum2x9 = vadd_s32(vget_low_s32(vacc2x9), vget_high_s32(vacc2x9));
470     const int32x2_t vpsum2xA = vadd_s32(vget_low_s32(vacc2x10), vget_high_s32(vacc2x10));
471     const int32x2_t vpsum2xB = vadd_s32(vget_low_s32(vacc2x11), vget_high_s32(vacc2x11));
472     const int32x2_t vsum2x89 = vpadd_s32(vpsum2x8, vpsum2x9);
473     const int32x2_t vsum2xAB = vpadd_s32(vpsum2xA, vpsum2xB);
474     int32x4_t vacc2x89AB = vcombine_s32(vsum2x89, vsum2xAB );
475     const int32x2_t vpsum2xC = vadd_s32(vget_low_s32(vacc2x12), vget_high_s32(vacc2x12));
476     const int32x2_t vpsum2xD = vadd_s32(vget_low_s32(vacc2x13), vget_high_s32(vacc2x13));
477     const int32x2_t vpsum2xE = vadd_s32(vget_low_s32(vacc2x14), vget_high_s32(vacc2x14));
478     const int32x2_t vpsum2xF = vadd_s32(vget_low_s32(vacc2x15), vget_high_s32(vacc2x15));
479     const int32x2_t vsum2xCD = vpadd_s32(vpsum2xC, vpsum2xD);
480     const int32x2_t vsum2xEF = vpadd_s32(vpsum2xE, vpsum2xF);
481     int32x4_t vacc2xCDEF = vcombine_s32(vsum2xCD, vsum2xEF );
482     const int32x2_t vpsum3x0 = vadd_s32(vget_low_s32(vacc3x0), vget_high_s32(vacc3x0));
483     const int32x2_t vpsum3x1 = vadd_s32(vget_low_s32(vacc3x1), vget_high_s32(vacc3x1));
484     const int32x2_t vpsum3x2 = vadd_s32(vget_low_s32(vacc3x2), vget_high_s32(vacc3x2));
485     const int32x2_t vpsum3x3 = vadd_s32(vget_low_s32(vacc3x3), vget_high_s32(vacc3x3));
486     const int32x2_t vsum3x01 = vpadd_s32(vpsum3x0, vpsum3x1);
487     const int32x2_t vsum3x23 = vpadd_s32(vpsum3x2, vpsum3x3);
488     int32x4_t vacc3x0123 = vcombine_s32(vsum3x01, vsum3x23 );
489     const int32x2_t vpsum3x4 = vadd_s32(vget_low_s32(vacc3x4), vget_high_s32(vacc3x4));
490     const int32x2_t vpsum3x5 = vadd_s32(vget_low_s32(vacc3x5), vget_high_s32(vacc3x5));
491     const int32x2_t vpsum3x6 = vadd_s32(vget_low_s32(vacc3x6), vget_high_s32(vacc3x6));
492     const int32x2_t vpsum3x7 = vadd_s32(vget_low_s32(vacc3x7), vget_high_s32(vacc3x7));
493     const int32x2_t vsum3x45 = vpadd_s32(vpsum3x4, vpsum3x5);
494     const int32x2_t vsum3x67 = vpadd_s32(vpsum3x6, vpsum3x7);
495     int32x4_t vacc3x4567 = vcombine_s32(vsum3x45, vsum3x67 );
496     const int32x2_t vpsum3x8 = vadd_s32(vget_low_s32(vacc3x8), vget_high_s32(vacc3x8));
497     const int32x2_t vpsum3x9 = vadd_s32(vget_low_s32(vacc3x9), vget_high_s32(vacc3x9));
498     const int32x2_t vpsum3xA = vadd_s32(vget_low_s32(vacc3x10), vget_high_s32(vacc3x10));
499     const int32x2_t vpsum3xB = vadd_s32(vget_low_s32(vacc3x11), vget_high_s32(vacc3x11));
500     const int32x2_t vsum3x89 = vpadd_s32(vpsum3x8, vpsum3x9);
501     const int32x2_t vsum3xAB = vpadd_s32(vpsum3xA, vpsum3xB);
502     int32x4_t vacc3x89AB = vcombine_s32(vsum3x89, vsum3xAB );
503     const int32x2_t vpsum3xC = vadd_s32(vget_low_s32(vacc3x12), vget_high_s32(vacc3x12));
504     const int32x2_t vpsum3xD = vadd_s32(vget_low_s32(vacc3x13), vget_high_s32(vacc3x13));
505     const int32x2_t vpsum3xE = vadd_s32(vget_low_s32(vacc3x14), vget_high_s32(vacc3x14));
506     const int32x2_t vpsum3xF = vadd_s32(vget_low_s32(vacc3x15), vget_high_s32(vacc3x15));
507     const int32x2_t vsum3xCD = vpadd_s32(vpsum3xC, vpsum3xD);
508     const int32x2_t vsum3xEF = vpadd_s32(vpsum3xE, vpsum3xF);
509     int32x4_t vacc3xCDEF = vcombine_s32(vsum3xCD, vsum3xEF );
510 #endif
511 
512     const int32x4_t vmultiplier = vld1q_dup_s32(&params->neon.multiplier);
513     vacc0x0123 = vqrdmulhq_s32(vacc0x0123, vmultiplier);
514     vacc0x4567 = vqrdmulhq_s32(vacc0x4567, vmultiplier);
515     vacc0x89AB = vqrdmulhq_s32(vacc0x89AB, vmultiplier);
516     vacc0xCDEF = vqrdmulhq_s32(vacc0xCDEF, vmultiplier);
517     vacc1x0123 = vqrdmulhq_s32(vacc1x0123, vmultiplier);
518     vacc1x4567 = vqrdmulhq_s32(vacc1x4567, vmultiplier);
519     vacc1x89AB = vqrdmulhq_s32(vacc1x89AB, vmultiplier);
520     vacc1xCDEF = vqrdmulhq_s32(vacc1xCDEF, vmultiplier);
521     vacc2x0123 = vqrdmulhq_s32(vacc2x0123, vmultiplier);
522     vacc2x4567 = vqrdmulhq_s32(vacc2x4567, vmultiplier);
523     vacc2x89AB = vqrdmulhq_s32(vacc2x89AB, vmultiplier);
524     vacc2xCDEF = vqrdmulhq_s32(vacc2xCDEF, vmultiplier);
525     vacc3x0123 = vqrdmulhq_s32(vacc3x0123, vmultiplier);
526     vacc3x4567 = vqrdmulhq_s32(vacc3x4567, vmultiplier);
527     vacc3x89AB = vqrdmulhq_s32(vacc3x89AB, vmultiplier);
528     vacc3xCDEF = vqrdmulhq_s32(vacc3xCDEF, vmultiplier);
529 
530     const int32x4_t vright_shift = vld1q_dup_s32(&params->neon.right_shift);
531     const int32x4_t vzero_shift_mask = vreinterpretq_s32_u32(vceqq_s32(vright_shift, vmovq_n_s32(0)));
532     vacc0x0123 = vsraq_n_s32(vacc0x0123, vbicq_s32(vacc0x0123, vzero_shift_mask), 31);
533     vacc0x4567 = vsraq_n_s32(vacc0x4567, vbicq_s32(vacc0x4567, vzero_shift_mask), 31);
534     vacc0x89AB = vsraq_n_s32(vacc0x89AB, vbicq_s32(vacc0x89AB, vzero_shift_mask), 31);
535     vacc0xCDEF = vsraq_n_s32(vacc0xCDEF, vbicq_s32(vacc0xCDEF, vzero_shift_mask), 31);
536     vacc1x0123 = vsraq_n_s32(vacc1x0123, vbicq_s32(vacc1x0123, vzero_shift_mask), 31);
537     vacc1x4567 = vsraq_n_s32(vacc1x4567, vbicq_s32(vacc1x4567, vzero_shift_mask), 31);
538     vacc1x89AB = vsraq_n_s32(vacc1x89AB, vbicq_s32(vacc1x89AB, vzero_shift_mask), 31);
539     vacc1xCDEF = vsraq_n_s32(vacc1xCDEF, vbicq_s32(vacc1xCDEF, vzero_shift_mask), 31);
540     vacc2x0123 = vsraq_n_s32(vacc2x0123, vbicq_s32(vacc2x0123, vzero_shift_mask), 31);
541     vacc2x4567 = vsraq_n_s32(vacc2x4567, vbicq_s32(vacc2x4567, vzero_shift_mask), 31);
542     vacc2x89AB = vsraq_n_s32(vacc2x89AB, vbicq_s32(vacc2x89AB, vzero_shift_mask), 31);
543     vacc2xCDEF = vsraq_n_s32(vacc2xCDEF, vbicq_s32(vacc2xCDEF, vzero_shift_mask), 31);
544     vacc3x0123 = vsraq_n_s32(vacc3x0123, vbicq_s32(vacc3x0123, vzero_shift_mask), 31);
545     vacc3x4567 = vsraq_n_s32(vacc3x4567, vbicq_s32(vacc3x4567, vzero_shift_mask), 31);
546     vacc3x89AB = vsraq_n_s32(vacc3x89AB, vbicq_s32(vacc3x89AB, vzero_shift_mask), 31);
547     vacc3xCDEF = vsraq_n_s32(vacc3xCDEF, vbicq_s32(vacc3xCDEF, vzero_shift_mask), 31);
548 
549     vacc0x0123 = vrshlq_s32(vacc0x0123, vright_shift);
550     vacc0x4567 = vrshlq_s32(vacc0x4567, vright_shift);
551     vacc0x89AB = vrshlq_s32(vacc0x89AB, vright_shift);
552     vacc0xCDEF = vrshlq_s32(vacc0xCDEF, vright_shift);
553     vacc1x0123 = vrshlq_s32(vacc1x0123, vright_shift);
554     vacc1x4567 = vrshlq_s32(vacc1x4567, vright_shift);
555     vacc1x89AB = vrshlq_s32(vacc1x89AB, vright_shift);
556     vacc1xCDEF = vrshlq_s32(vacc1xCDEF, vright_shift);
557     vacc2x0123 = vrshlq_s32(vacc2x0123, vright_shift);
558     vacc2x4567 = vrshlq_s32(vacc2x4567, vright_shift);
559     vacc2x89AB = vrshlq_s32(vacc2x89AB, vright_shift);
560     vacc2xCDEF = vrshlq_s32(vacc2xCDEF, vright_shift);
561     vacc3x0123 = vrshlq_s32(vacc3x0123, vright_shift);
562     vacc3x4567 = vrshlq_s32(vacc3x4567, vright_shift);
563     vacc3x89AB = vrshlq_s32(vacc3x89AB, vright_shift);
564     vacc3xCDEF = vrshlq_s32(vacc3xCDEF, vright_shift);
565 
566     const int16x8_t voutput_zero_point = vld1q_dup_s16(&params->neon.output_zero_point);
567 #if XNN_ARCH_ARM64
568     const int16x8_t vacc0x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567), voutput_zero_point);
569     const int16x8_t vacc0x89ABCDEF = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc0x89AB), vacc0xCDEF), voutput_zero_point);
570     const int16x8_t vacc1x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567), voutput_zero_point);
571     const int16x8_t vacc1x89ABCDEF = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc1x89AB), vacc1xCDEF), voutput_zero_point);
572     const int16x8_t vacc2x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc2x0123), vacc2x4567), voutput_zero_point);
573     const int16x8_t vacc2x89ABCDEF = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc2x89AB), vacc2xCDEF), voutput_zero_point);
574     const int16x8_t vacc3x01234567 = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc3x0123), vacc3x4567), voutput_zero_point);
575     const int16x8_t vacc3x89ABCDEF = vqaddq_s16(vqmovn_high_s32(vqmovn_s32(vacc3x89AB), vacc3xCDEF), voutput_zero_point);
576     int8x16_t vout0x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc0x89ABCDEF);
577     int8x16_t vout1x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc1x01234567), vacc1x89ABCDEF);
578     int8x16_t vout2x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc2x01234567), vacc2x89ABCDEF);
579     int8x16_t vout3x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc3x01234567), vacc3x89ABCDEF);
580 #else
581     const int16x8_t vacc0x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567)), voutput_zero_point);
582     const int16x8_t vacc0x89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc0x89AB), vqmovn_s32(vacc0xCDEF)), voutput_zero_point);
583     const int16x8_t vacc1x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567)), voutput_zero_point);
584     const int16x8_t vacc1x89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc1x89AB), vqmovn_s32(vacc1xCDEF)), voutput_zero_point);
585     const int16x8_t vacc2x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc2x0123), vqmovn_s32(vacc2x4567)), voutput_zero_point);
586     const int16x8_t vacc2x89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc2x89AB), vqmovn_s32(vacc2xCDEF)), voutput_zero_point);
587     const int16x8_t vacc3x01234567 = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc3x0123), vqmovn_s32(vacc3x4567)), voutput_zero_point);
588     const int16x8_t vacc3x89ABCDEF = vqaddq_s16(vcombine_s16(vqmovn_s32(vacc3x89AB), vqmovn_s32(vacc3xCDEF)), voutput_zero_point);
589 
590     int8x16_t vout0x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc0x01234567), vqmovn_s16(vacc0x89ABCDEF));
591     int8x16_t vout1x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc1x01234567), vqmovn_s16(vacc1x89ABCDEF));
592     int8x16_t vout2x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc2x01234567), vqmovn_s16(vacc2x89ABCDEF));
593     int8x16_t vout3x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc3x01234567), vqmovn_s16(vacc3x89ABCDEF));
594 #endif
595     const int8x16_t voutput_min = vld1q_dup_s8(&params->neon.output_min);
596     const int8x16_t voutput_max = vld1q_dup_s8(&params->neon.output_max);
597 
598     vout0x0123456789ABCDEF = vmaxq_s8(vout0x0123456789ABCDEF, voutput_min);
599     vout1x0123456789ABCDEF = vmaxq_s8(vout1x0123456789ABCDEF, voutput_min);
600     vout2x0123456789ABCDEF = vmaxq_s8(vout2x0123456789ABCDEF, voutput_min);
601     vout3x0123456789ABCDEF = vmaxq_s8(vout3x0123456789ABCDEF, voutput_min);
602 
603     vout0x0123456789ABCDEF = vminq_s8(vout0x0123456789ABCDEF, voutput_max);
604     vout1x0123456789ABCDEF = vminq_s8(vout1x0123456789ABCDEF, voutput_max);
605     vout2x0123456789ABCDEF = vminq_s8(vout2x0123456789ABCDEF, voutput_max);
606     vout3x0123456789ABCDEF = vminq_s8(vout3x0123456789ABCDEF, voutput_max);
607 
608     if (nc >= 16) {
609       vst1q_s8(c0 + 0, vout0x0123456789ABCDEF);
610       vst1q_s8(c1 + 0, vout1x0123456789ABCDEF);
611       vst1q_s8(c2 + 0, vout2x0123456789ABCDEF);
612       vst1q_s8(c3 + 0, vout3x0123456789ABCDEF);
613 
614       c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
615       c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
616       c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
617       c3 = (int8_t*) ((uintptr_t) c3 + cn_stride);
618 
619       a0 = (const int8_t*) ((uintptr_t) a0 - kc);
620       a1 = (const int8_t*) ((uintptr_t) a1 - kc);
621       a2 = (const int8_t*) ((uintptr_t) a2 - kc);
622       a3 = (const int8_t*) ((uintptr_t) a3 - kc);
623 
624       nc -= 16;
625     } else {
626       int8x16_t vout0x01234567_1x01234567 = vcombine_s8(vget_low_s8(vout0x0123456789ABCDEF), vget_low_s8(vout1x0123456789ABCDEF));
627       int8x16_t vout2x01234567_3x01234567 = vcombine_s8(vget_low_s8(vout2x0123456789ABCDEF), vget_low_s8(vout3x0123456789ABCDEF));
628       if (nc & 8) {
629         vst1_s8(c0, vget_low_s8(vout0x01234567_1x01234567)); c0 += 8;
630         vst1_s8(c1, vget_high_s8(vout0x01234567_1x01234567)); c1 += 8;
631         vst1_s8(c2, vget_low_s8(vout2x01234567_3x01234567)); c2 += 8;
632         vst1_s8(c3, vget_high_s8(vout2x01234567_3x01234567)); c3 += 8;
633         vout0x01234567_1x01234567 = vcombine_s8(vget_high_s8(vout0x0123456789ABCDEF), vget_high_s8(vout1x0123456789ABCDEF));
634         vout2x01234567_3x01234567 = vcombine_s8(vget_high_s8(vout2x0123456789ABCDEF), vget_high_s8(vout3x0123456789ABCDEF));
635       }
636       if (nc & 4) {
637         vst1q_lane_u32(__builtin_assume_aligned(c0, 1), vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
638         vst1q_lane_u32(__builtin_assume_aligned(c1, 1), vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
639         vst1q_lane_u32(__builtin_assume_aligned(c2, 1), vreinterpretq_u32_s8(vout2x01234567_3x01234567), 0); c2 += 4;
640         vst1q_lane_u32(__builtin_assume_aligned(c3, 1), vreinterpretq_u32_s8(vout2x01234567_3x01234567), 2); c3 += 4;
641         vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 4);
642         vout2x01234567_3x01234567 = vextq_s8(vout2x01234567_3x01234567, vout2x01234567_3x01234567, 4);
643       }
644       if (nc & 2) {
645         vst1q_lane_u16(__builtin_assume_aligned(c0, 1), vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
646         vst1q_lane_u16(__builtin_assume_aligned(c1, 1), vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
647         vst1q_lane_u16(__builtin_assume_aligned(c2, 1), vreinterpretq_u16_s8(vout2x01234567_3x01234567), 0); c2 += 2;
648         vst1q_lane_u16(__builtin_assume_aligned(c3, 1), vreinterpretq_u16_s8(vout2x01234567_3x01234567), 4); c3 += 2;
649         vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 2);
650         vout2x01234567_3x01234567 = vextq_s8(vout2x01234567_3x01234567, vout2x01234567_3x01234567, 2);
651       }
652       if (nc & 1) {
653         vst1q_lane_s8(c0, vout0x01234567_1x01234567, 0);
654         vst1q_lane_s8(c1, vout0x01234567_1x01234567, 8);
655         vst1q_lane_s8(c2, vout2x01234567_3x01234567, 0);
656         vst1q_lane_s8(c3, vout2x01234567_3x01234567, 8);
657       }
658 
659       nc = 0;
660     }
661   } while (nc != 0);
662 }
663