1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-gemm/c2-neon-mull-dup.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
xnn_qs8_gemm_minmax_fp32_ukernel_2x8c2__neon_mlal_dup(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)])17 void xnn_qs8_gemm_minmax_fp32_ukernel_2x8c2__neon_mlal_dup(
18 size_t mr,
19 size_t nc,
20 size_t kc,
21 const int8_t* restrict a,
22 size_t a_stride,
23 const void* restrict w,
24 int8_t* restrict c,
25 size_t cm_stride,
26 size_t cn_stride,
27 const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
28 {
29 assert(mr != 0);
30 assert(mr <= 2);
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, 2 * sizeof(int8_t));
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
48 do {
49 int32x4_t vacc0x0123 = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
50 int32x4_t vacc0x4567 = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
51 int32x4_t vacc1x0123 = vacc0x0123;
52 int32x4_t vacc1x4567 = vacc0x4567;
53
54 size_t k = kc;
55
56 while (k >= 16 * sizeof(int8_t)) {
57 const int8x8_t va0x0 = vld1_s8(a0); a0 += 8;
58 const int8x8_t va0x1 = vld1_s8(a0); a0 += 8;
59 const int8x8_t va1x0 = vld1_s8(a1); a1 += 8;
60 const int8x8_t va1x1 = vld1_s8(a1); a1 += 8;
61 const int8x8_t vb0123c0x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
62 const int8x8_t vb4567c0x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
63 const int8x8_t vb0123c1x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
64 const int8x8_t vb4567c1x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
65 const int8x8_t vb0123c2x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
66 const int8x8_t vb4567c2x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
67 const int8x8_t vb0123c3x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
68 const int8x8_t vb4567c3x0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
69
70 const int8x8_t va0c0x0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0x0), 0));
71 const int8x8_t va0c0x1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0x1), 0));
72 const int8x8_t va1c0x0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1x0), 0));
73 const int8x8_t va1c0x1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1x1), 0));
74
75 int16x8_t vprod0x0123c0 = vmull_s8(vb0123c0x0, va0c0x0);
76 int16x8_t vprod1x0123c0 = vmull_s8(vb0123c0x0, va1c0x0);
77 const int8x8_t vb0123c0x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
78 vprod0x0123c0 = vmlal_s8(vprod0x0123c0, vb0123c0x1, va0c0x1);
79 vprod1x0123c0 = vmlal_s8(vprod1x0123c0, vb0123c0x1, va1c0x1);
80 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c0);
81 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c0);
82 int16x8_t vprod0x4567c0 = vmull_s8(vb4567c0x0, va0c0x0);
83 int16x8_t vprod1x4567c0 = vmull_s8(vb4567c0x0, va1c0x0);
84 const int8x8_t vb4567c0x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
85 vprod0x4567c0 = vmlal_s8(vprod0x4567c0, vb4567c0x1, va0c0x1);
86 vprod1x4567c0 = vmlal_s8(vprod1x4567c0, vb4567c0x1, va1c0x1);
87 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c0);
88 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c0);
89 const int8x8_t va0c1x0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0x0), 1));
90 const int8x8_t va0c1x1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0x1), 1));
91 const int8x8_t va1c1x0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1x0), 1));
92 const int8x8_t va1c1x1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1x1), 1));
93
94 int16x8_t vprod0x0123c1 = vmull_s8(vb0123c1x0, va0c1x0);
95 int16x8_t vprod1x0123c1 = vmull_s8(vb0123c1x0, va1c1x0);
96 const int8x8_t vb0123c1x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
97 vprod0x0123c1 = vmlal_s8(vprod0x0123c1, vb0123c1x1, va0c1x1);
98 vprod1x0123c1 = vmlal_s8(vprod1x0123c1, vb0123c1x1, va1c1x1);
99 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c1);
100 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c1);
101 int16x8_t vprod0x4567c1 = vmull_s8(vb4567c1x0, va0c1x0);
102 int16x8_t vprod1x4567c1 = vmull_s8(vb4567c1x0, va1c1x0);
103 const int8x8_t vb4567c1x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
104 vprod0x4567c1 = vmlal_s8(vprod0x4567c1, vb4567c1x1, va0c1x1);
105 vprod1x4567c1 = vmlal_s8(vprod1x4567c1, vb4567c1x1, va1c1x1);
106 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c1);
107 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c1);
108 const int8x8_t va0c2x0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0x0), 2));
109 const int8x8_t va0c2x1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0x1), 2));
110 const int8x8_t va1c2x0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1x0), 2));
111 const int8x8_t va1c2x1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1x1), 2));
112
113 int16x8_t vprod0x0123c2 = vmull_s8(vb0123c2x0, va0c2x0);
114 int16x8_t vprod1x0123c2 = vmull_s8(vb0123c2x0, va1c2x0);
115 const int8x8_t vb0123c2x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
116 vprod0x0123c2 = vmlal_s8(vprod0x0123c2, vb0123c2x1, va0c2x1);
117 vprod1x0123c2 = vmlal_s8(vprod1x0123c2, vb0123c2x1, va1c2x1);
118 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c2);
119 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c2);
120 int16x8_t vprod0x4567c2 = vmull_s8(vb4567c2x0, va0c2x0);
121 int16x8_t vprod1x4567c2 = vmull_s8(vb4567c2x0, va1c2x0);
122 const int8x8_t vb4567c2x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
123 vprod0x4567c2 = vmlal_s8(vprod0x4567c2, vb4567c2x1, va0c2x1);
124 vprod1x4567c2 = vmlal_s8(vprod1x4567c2, vb4567c2x1, va1c2x1);
125 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c2);
126 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c2);
127 const int8x8_t va0c3x0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0x0), 3));
128 const int8x8_t va0c3x1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0x1), 3));
129 const int8x8_t va1c3x0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1x0), 3));
130 const int8x8_t va1c3x1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1x1), 3));
131
132 int16x8_t vprod0x0123c3 = vmull_s8(vb0123c3x0, va0c3x0);
133 int16x8_t vprod1x0123c3 = vmull_s8(vb0123c3x0, va1c3x0);
134 const int8x8_t vb0123c3x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
135 vprod0x0123c3 = vmlal_s8(vprod0x0123c3, vb0123c3x1, va0c3x1);
136 vprod1x0123c3 = vmlal_s8(vprod1x0123c3, vb0123c3x1, va1c3x1);
137 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c3);
138 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c3);
139 int16x8_t vprod0x4567c3 = vmull_s8(vb4567c3x0, va0c3x0);
140 int16x8_t vprod1x4567c3 = vmull_s8(vb4567c3x0, va1c3x0);
141 const int8x8_t vb4567c3x1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
142 vprod0x4567c3 = vmlal_s8(vprod0x4567c3, vb4567c3x1, va0c3x1);
143 vprod1x4567c3 = vmlal_s8(vprod1x4567c3, vb4567c3x1, va1c3x1);
144 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c3);
145 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c3);
146
147 k -= 16 * sizeof(int8_t);
148 }
149
150 if (k >= 8 * sizeof(int8_t)) {
151 const int8x8_t va0 = vld1_s8(a0); a0 += 8;
152 const int8x8_t va1 = vld1_s8(a1); a1 += 8;
153
154 const int8x8_t vb0123c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
155 const int8x8_t vb4567c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
156 const int8x8_t vb0123c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
157 const int8x8_t vb4567c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
158 const int8x8_t vb0123c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
159 const int8x8_t vb4567c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
160 const int8x8_t vb0123c3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
161 const int8x8_t vb4567c3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
162
163 const int8x8_t va0c0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 0));
164 const int8x8_t va1c0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 0));
165
166 const int16x8_t vprod0x0123c0 = vmull_s8(vb0123c0, va0c0);
167 const int16x8_t vprod1x0123c0 = vmull_s8(vb0123c0, va1c0);
168 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c0);
169 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c0);
170 const int16x8_t vprod0x4567c0 = vmull_s8(vb4567c0, va0c0);
171 const int16x8_t vprod1x4567c0 = vmull_s8(vb4567c0, va1c0);
172 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c0);
173 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c0);
174 const int8x8_t va0c1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 1));
175 const int8x8_t va1c1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 1));
176
177 const int16x8_t vprod0x0123c1 = vmull_s8(vb0123c1, va0c1);
178 const int16x8_t vprod1x0123c1 = vmull_s8(vb0123c1, va1c1);
179 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c1);
180 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c1);
181 const int16x8_t vprod0x4567c1 = vmull_s8(vb4567c1, va0c1);
182 const int16x8_t vprod1x4567c1 = vmull_s8(vb4567c1, va1c1);
183 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c1);
184 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c1);
185 const int8x8_t va0c2 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 2));
186 const int8x8_t va1c2 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 2));
187
188 const int16x8_t vprod0x0123c2 = vmull_s8(vb0123c2, va0c2);
189 const int16x8_t vprod1x0123c2 = vmull_s8(vb0123c2, va1c2);
190 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c2);
191 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c2);
192 const int16x8_t vprod0x4567c2 = vmull_s8(vb4567c2, va0c2);
193 const int16x8_t vprod1x4567c2 = vmull_s8(vb4567c2, va1c2);
194 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c2);
195 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c2);
196 const int8x8_t va0c3 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 3));
197 const int8x8_t va1c3 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 3));
198
199 const int16x8_t vprod0x0123c3 = vmull_s8(vb0123c3, va0c3);
200 const int16x8_t vprod1x0123c3 = vmull_s8(vb0123c3, va1c3);
201 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c3);
202 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c3);
203 const int16x8_t vprod0x4567c3 = vmull_s8(vb4567c3, va0c3);
204 const int16x8_t vprod1x4567c3 = vmull_s8(vb4567c3, va1c3);
205 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c3);
206 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c3);
207
208 k -= 8 * sizeof(int8_t);
209 }
210
211 if XNN_UNLIKELY(k != 0) {
212 const int8x8_t va0 = vld1_s8(a0); a0 = (const int8_t*) ((uintptr_t) a0 + k);
213 const int8x8_t va1 = vld1_s8(a1); a1 = (const int8_t*) ((uintptr_t) a1 + k);
214
215 const int8x8_t vb0123c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
216 const int8x8_t vb4567c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
217
218 const int8x8_t va0c0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 0));
219 const int16x8_t vprod0x0123c0 = vmull_s8(vb0123c0, va0c0);
220 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c0);
221 const int16x8_t vprod0x4567c0 = vmull_s8(vb4567c0, va0c0);
222 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c0);
223 const int8x8_t va1c0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 0));
224 const int16x8_t vprod1x0123c0 = vmull_s8(vb0123c0, va1c0);
225 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c0);
226 const int16x8_t vprod1x4567c0 = vmull_s8(vb4567c0, va1c0);
227 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c0);
228
229 if (k > 2 * sizeof(int8_t)) {
230 const int8x8_t vb0123c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
231 const int8x8_t vb4567c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
232
233 const int8x8_t va0c1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 1));
234 const int16x8_t vprod0x0123c1 = vmull_s8(vb0123c1, va0c1);
235 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c1);
236 const int16x8_t vprod0x4567c1 = vmull_s8(vb4567c1, va0c1);
237 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c1);
238 const int8x8_t va1c1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 1));
239 const int16x8_t vprod1x0123c1 = vmull_s8(vb0123c1, va1c1);
240 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c1);
241 const int16x8_t vprod1x4567c1 = vmull_s8(vb4567c1, va1c1);
242 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c1);
243
244 if (k > 4 * sizeof(int8_t)) {
245 const int8x8_t vb0123c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
246 const int8x8_t vb4567c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
247
248 const int8x8_t va0c2 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 2));
249 const int16x8_t vprod0x0123c2 = vmull_s8(vb0123c2, va0c2);
250 vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c2);
251 const int16x8_t vprod0x4567c2 = vmull_s8(vb4567c2, va0c2);
252 vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c2);
253 const int8x8_t va1c2 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 2));
254 const int16x8_t vprod1x0123c2 = vmull_s8(vb0123c2, va1c2);
255 vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c2);
256 const int16x8_t vprod1x4567c2 = vmull_s8(vb4567c2, va1c2);
257 vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c2);
258 }
259 }
260 }
261
262 float32x4_t vfpacc0x0123 = vcvtq_f32_s32(vacc0x0123);
263 float32x4_t vfpacc0x4567 = vcvtq_f32_s32(vacc0x4567);
264 float32x4_t vfpacc1x0123 = vcvtq_f32_s32(vacc1x0123);
265 float32x4_t vfpacc1x4567 = vcvtq_f32_s32(vacc1x4567);
266
267 const float32x4_t vscale = vld1q_dup_f32(¶ms->fp32_neon.scale);
268 vfpacc0x0123 = vmulq_f32(vfpacc0x0123, vscale);
269 vfpacc0x4567 = vmulq_f32(vfpacc0x4567, vscale);
270 vfpacc1x0123 = vmulq_f32(vfpacc1x0123, vscale);
271 vfpacc1x4567 = vmulq_f32(vfpacc1x4567, vscale);
272
273 const float32x4_t vmagic_bias = vld1q_dup_f32(¶ms->fp32_neon.magic_bias);
274 vacc0x0123 = vreinterpretq_s32_f32(vaddq_f32(vfpacc0x0123, vmagic_bias));
275 vacc0x4567 = vreinterpretq_s32_f32(vaddq_f32(vfpacc0x4567, vmagic_bias));
276 vacc1x0123 = vreinterpretq_s32_f32(vaddq_f32(vfpacc1x0123, vmagic_bias));
277 vacc1x4567 = vreinterpretq_s32_f32(vaddq_f32(vfpacc1x4567, vmagic_bias));
278
279 const int32x4_t vmagic_bias_less_output_zero_point = vld1q_dup_s32(¶ms->fp32_neon.magic_bias_less_output_zero_point);
280 vacc0x0123 = vqsubq_s32(vacc0x0123, vmagic_bias_less_output_zero_point);
281 vacc0x4567 = vqsubq_s32(vacc0x4567, vmagic_bias_less_output_zero_point);
282 vacc1x0123 = vqsubq_s32(vacc1x0123, vmagic_bias_less_output_zero_point);
283 vacc1x4567 = vqsubq_s32(vacc1x4567, vmagic_bias_less_output_zero_point);
284
285 #if XNN_ARCH_ARM64
286 int16x8_t vacc0x01234567 = vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567);
287 int16x8_t vacc1x01234567 = vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567);
288
289
290 int8x16_t vout0x01234567_1x01234567 = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc1x01234567);
291 #else
292 int16x8_t vacc0x01234567 = vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567));
293 int16x8_t vacc1x01234567 = vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567));
294
295
296 int8x16_t vout0x01234567_1x01234567 = vcombine_s8(vqmovn_s16(vacc0x01234567), vqmovn_s16(vacc1x01234567));
297 #endif
298
299 const int8x16_t voutput_min = vld1q_dup_s8(¶ms->fp32_neon.output_min);
300 vout0x01234567_1x01234567 = vmaxq_s8(vout0x01234567_1x01234567, voutput_min);
301
302 const int8x16_t voutput_max = vld1q_dup_s8(¶ms->fp32_neon.output_max);
303 vout0x01234567_1x01234567 = vminq_s8(vout0x01234567_1x01234567, voutput_max);
304
305 if (nc >= 8) {
306 vst1_s8(c0 + 0, vget_low_s8(vout0x01234567_1x01234567));
307 vst1_s8(c1 + 0, vget_high_s8(vout0x01234567_1x01234567));
308
309 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
310 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
311
312 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
313 a1 = (const int8_t*) ((uintptr_t) a1 - kc);
314
315 nc -= 8;
316 } else {
317 // Final case where not all of the 8 columns fit in the destination.
318 if (nc & 4) {
319 vst1q_lane_u32((void*) c0, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
320 vst1q_lane_u32((void*) c1, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
321 vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 4);
322 }
323 if (nc & 2) {
324 vst1q_lane_u16((void*) c0, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
325 vst1q_lane_u16((void*) c1, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
326 vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 2);
327 }
328 if (nc & 1) {
329 vst1q_lane_s8(c0, vout0x01234567_1x01234567, 0);
330 vst1q_lane_s8(c1, vout0x01234567_1x01234567, 8);
331 }
332
333 nc = 0;
334 }
335 } while (nc != 0);
336 }
337