xref: /aosp_15_r20/external/XNNPACK/src/qu8-gavgpool/gen/7p7x-minmax-fp32-sse41-c24.c (revision 4bdc94577ba0e567308109d787f7fec7b531ce36)
1 // Auto-generated file. Do not edit!
2 //   Template: src/qs8-gavgpool/multipass-sse4.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 <smmintrin.h>
13 
14 #include <xnnpack/gavgpool.h>
15 #include <xnnpack/math.h>
16 #include <xnnpack/unaligned.h>
17 
18 
xnn_qu8_gavgpool_minmax_fp32_ukernel_7p7x__sse41_c24(size_t rows,size_t channels,const uint8_t * input,size_t input_stride,const uint8_t * zero,int32_t * buffer,uint8_t * output,const union xnn_qu8_avgpool_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_qu8_gavgpool_minmax_fp32_ukernel_7p7x__sse41_c24(
20     size_t rows,
21     size_t channels,
22     const uint8_t* input,
23     size_t input_stride,
24     const uint8_t* zero,
25     int32_t* buffer,
26     uint8_t* output,
27     const union xnn_qu8_avgpool_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
28 {
29   assert(rows > 7);
30   assert(channels != 0);
31 
32   const uint8_t* i0 = input;
33   const uint8_t* i1 = (const uint8_t*) ((uintptr_t) i0 + input_stride);
34   const uint8_t* i2 = (const uint8_t*) ((uintptr_t) i1 + input_stride);
35   const uint8_t* i3 = (const uint8_t*) ((uintptr_t) i2 + input_stride);
36   const uint8_t* i4 = (const uint8_t*) ((uintptr_t) i3 + input_stride);
37   const uint8_t* i5 = (const uint8_t*) ((uintptr_t) i4 + input_stride);
38   const uint8_t* i6 = (const uint8_t*) ((uintptr_t) i5 + input_stride);
39   const size_t input_increment = 7 * input_stride - round_up_po2(channels, 8) * sizeof(uint8_t);
40 
41   const __m128i vinit_bias = _mm_load_si128((const __m128i*) params->fp32_sse4.init_bias);
42   int32_t* b = buffer;
43   size_t c = channels;
44   for (; c >= 24; c -= 24) {
45     const __m128i vxi0x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i0));
46     const __m128i vxi0x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i0 + 8)));
47     const __m128i vxi0xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i0 + 16)));
48     i0 += 24;
49     const __m128i vxi1x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i1));
50     const __m128i vxi1x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i1 + 8)));
51     const __m128i vxi1xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i1 + 16)));
52     i1 += 24;
53 
54     __m128i vacc01234567 = _mm_add_epi16(vxi0x01234567, vxi1x01234567);
55     const __m128i vxi2x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i2));
56     __m128i vacc89ABCDEF = _mm_add_epi16(vxi0x89ABCDEF, vxi1x89ABCDEF);
57     const __m128i vxi2x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i2 + 8)));
58     __m128i vaccGHIJKLMN = _mm_add_epi16(vxi0xGHIJKLMN, vxi1xGHIJKLMN);
59     const __m128i vxi2xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i2 + 16)));
60     i2 += 24;
61 
62     vacc01234567 = _mm_add_epi16(vacc01234567, vxi2x01234567);
63     const __m128i vxi3x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i3));
64     vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi2x89ABCDEF);
65     const __m128i vxi3x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i3 + 8)));
66     vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi2xGHIJKLMN);
67     const __m128i vxi3xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i3 + 16)));
68     i3 += 24;
69     vacc01234567 = _mm_add_epi16(vacc01234567, vxi3x01234567);
70     const __m128i vxi4x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i4));
71     vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi3x89ABCDEF);
72     const __m128i vxi4x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i4 + 8)));
73     vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi3xGHIJKLMN);
74     const __m128i vxi4xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i4 + 16)));
75     i4 += 24;
76     vacc01234567 = _mm_add_epi16(vacc01234567, vxi4x01234567);
77     const __m128i vxi5x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i5));
78     vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi4x89ABCDEF);
79     const __m128i vxi5x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i5 + 8)));
80     vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi4xGHIJKLMN);
81     const __m128i vxi5xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i5 + 16)));
82     i5 += 24;
83     vacc01234567 = _mm_add_epi16(vacc01234567, vxi5x01234567);
84     const __m128i vxi6x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i6));
85     vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi5x89ABCDEF);
86     const __m128i vxi6x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i6 + 8)));
87     vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi5xGHIJKLMN);
88     const __m128i vxi6xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i6 + 16)));
89     i6 += 24;
90 
91     vacc01234567 = _mm_add_epi16(vacc01234567, vxi6x01234567);
92     vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi6x89ABCDEF);
93     vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi6xGHIJKLMN);
94 
95     const __m128i vzero = _mm_setzero_si128();
96     __m128i vacc0123 = _mm_cvtepu16_epi32(vacc01234567);
97     __m128i vacc4567 = _mm_unpackhi_epi16(vacc01234567, vzero);
98     __m128i vacc89AB = _mm_cvtepu16_epi32(vacc89ABCDEF);
99     __m128i vaccCDEF = _mm_unpackhi_epi16(vacc89ABCDEF, vzero);
100     __m128i vaccGHIJ = _mm_cvtepu16_epi32(vaccGHIJKLMN);
101     __m128i vaccKLMN = _mm_unpackhi_epi16(vaccGHIJKLMN, vzero);
102 
103     vacc0123 = _mm_add_epi32(vacc0123, vinit_bias);
104     vacc4567 = _mm_add_epi32(vacc4567, vinit_bias);
105     vacc89AB = _mm_add_epi32(vacc89AB, vinit_bias);
106     vaccCDEF = _mm_add_epi32(vaccCDEF, vinit_bias);
107     vaccGHIJ = _mm_add_epi32(vaccGHIJ, vinit_bias);
108     vaccKLMN = _mm_add_epi32(vaccKLMN, vinit_bias);
109 
110     _mm_store_si128((__m128i*) b, vacc0123);
111     _mm_store_si128((__m128i*) (b + 4), vacc4567);
112     _mm_store_si128((__m128i*) (b + 8), vacc89AB);
113     _mm_store_si128((__m128i*) (b + 12), vaccCDEF);
114     _mm_store_si128((__m128i*) (b + 16), vaccGHIJ);
115     _mm_store_si128((__m128i*) (b + 20), vaccKLMN);
116     b += 24;
117   }
118   if XNN_UNLIKELY(c != 0) {
119     do {
120       const __m128i vxi0x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i0));
121       i0 += 8;
122       const __m128i vxi1x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i1));
123       i1 += 8;
124 
125       __m128i vacc01234567 = _mm_add_epi16(vxi0x01234567, vxi1x01234567);
126       const __m128i vxi2x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i2));
127       i2 += 8;
128 
129       vacc01234567 = _mm_add_epi16(vacc01234567, vxi2x01234567);
130       const __m128i vxi3x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i3));
131       i3 += 8;
132       vacc01234567 = _mm_add_epi16(vacc01234567, vxi3x01234567);
133       const __m128i vxi4x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i4));
134       i4 += 8;
135       vacc01234567 = _mm_add_epi16(vacc01234567, vxi4x01234567);
136       const __m128i vxi5x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i5));
137       i5 += 8;
138       vacc01234567 = _mm_add_epi16(vacc01234567, vxi5x01234567);
139       const __m128i vxi6x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i6));
140       i6 += 8;
141 
142       vacc01234567 = _mm_add_epi16(vacc01234567, vxi6x01234567);
143 
144       __m128i vacc0123 = _mm_cvtepu16_epi32(vacc01234567);
145       __m128i vacc4567 = _mm_unpackhi_epi16(vacc01234567, _mm_setzero_si128());
146 
147       vacc0123 = _mm_add_epi32(vacc0123, vinit_bias);
148       vacc4567 = _mm_add_epi32(vacc4567, vinit_bias);
149 
150       _mm_store_si128((__m128i*) b, vacc0123);
151       _mm_store_si128((__m128i*) (b + 4), vacc4567);
152       b += 8;
153 
154       c = doz(c, 8);
155     } while (c != 0);
156   }
157 
158   for (rows -= 7; rows > 7; rows -= 7) {
159     i0 = (const uint8_t*) ((uintptr_t) i0 + input_increment);
160     i1 = (const uint8_t*) ((uintptr_t) i1 + input_increment);
161     i2 = (const uint8_t*) ((uintptr_t) i2 + input_increment);
162     i3 = (const uint8_t*) ((uintptr_t) i3 + input_increment);
163     i4 = (const uint8_t*) ((uintptr_t) i4 + input_increment);
164     i5 = (const uint8_t*) ((uintptr_t) i5 + input_increment);
165     i6 = (const uint8_t*) ((uintptr_t) i6 + input_increment);
166 
167     int32_t* b = buffer;
168     size_t c = channels;
169     for (; c >= 24; c -= 24) {
170       const __m128i vxi0x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i0));
171       const __m128i vxi0x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i0 + 8)));
172       const __m128i vxi0xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i0 + 16)));
173       i0 += 24;
174       const __m128i vxi1x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i1));
175       const __m128i vxi1x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i1 + 8)));
176       const __m128i vxi1xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i1 + 16)));
177       i1 += 24;
178 
179       __m128i vacc01234567 = _mm_add_epi16(vxi0x01234567, vxi1x01234567);
180       const __m128i vxi2x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i2));
181       __m128i vacc89ABCDEF = _mm_add_epi16(vxi0x89ABCDEF, vxi1x89ABCDEF);
182       const __m128i vxi2x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i2 + 8)));
183       __m128i vaccGHIJKLMN = _mm_add_epi16(vxi0xGHIJKLMN, vxi1xGHIJKLMN);
184       const __m128i vxi2xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i2 + 16)));
185       i2 += 24;
186 
187       vacc01234567 = _mm_add_epi16(vacc01234567, vxi2x01234567);
188       const __m128i vxi3x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i3));
189       vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi2x89ABCDEF);
190       const __m128i vxi3x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i3 + 8)));
191       vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi2xGHIJKLMN);
192       const __m128i vxi3xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i3 + 16)));
193       i3 += 24;
194       vacc01234567 = _mm_add_epi16(vacc01234567, vxi3x01234567);
195       const __m128i vxi4x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i4));
196       vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi3x89ABCDEF);
197       const __m128i vxi4x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i4 + 8)));
198       vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi3xGHIJKLMN);
199       const __m128i vxi4xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i4 + 16)));
200       i4 += 24;
201       vacc01234567 = _mm_add_epi16(vacc01234567, vxi4x01234567);
202       const __m128i vxi5x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i5));
203       vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi4x89ABCDEF);
204       const __m128i vxi5x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i5 + 8)));
205       vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi4xGHIJKLMN);
206       const __m128i vxi5xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i5 + 16)));
207       i5 += 24;
208       vacc01234567 = _mm_add_epi16(vacc01234567, vxi5x01234567);
209       const __m128i vxi6x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i6));
210       vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi5x89ABCDEF);
211       const __m128i vxi6x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i6 + 8)));
212       vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi5xGHIJKLMN);
213       const __m128i vxi6xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i6 + 16)));
214       i6 += 24;
215 
216       vacc01234567 = _mm_add_epi16(vacc01234567, vxi6x01234567);
217       vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi6x89ABCDEF);
218       vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi6xGHIJKLMN);
219 
220       const __m128i vzero = _mm_setzero_si128();
221       __m128i vacc0123 = _mm_cvtepu16_epi32(vacc01234567);
222       __m128i vacc4567 = _mm_unpackhi_epi16(vacc01234567, vzero);
223       __m128i vacc89AB = _mm_cvtepu16_epi32(vacc89ABCDEF);
224       __m128i vaccCDEF = _mm_unpackhi_epi16(vacc89ABCDEF, vzero);
225       __m128i vaccGHIJ = _mm_cvtepu16_epi32(vaccGHIJKLMN);
226       __m128i vaccKLMN = _mm_unpackhi_epi16(vaccGHIJKLMN, vzero);
227 
228       vacc0123 = _mm_add_epi32(vacc0123, _mm_load_si128((const __m128i*) b));
229       vacc4567 = _mm_add_epi32(vacc4567, _mm_load_si128((const __m128i*) (b + 4)));
230       vacc89AB = _mm_add_epi32(vacc89AB, _mm_load_si128((const __m128i*) (b + 8)));
231       vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_load_si128((const __m128i*) (b + 12)));
232       vaccGHIJ = _mm_add_epi32(vaccGHIJ, _mm_load_si128((const __m128i*) (b + 16)));
233       vaccKLMN = _mm_add_epi32(vaccKLMN, _mm_load_si128((const __m128i*) (b + 20)));
234 
235       _mm_store_si128((__m128i*) b, vacc0123);
236       _mm_store_si128((__m128i*) (b + 4), vacc4567);
237       _mm_store_si128((__m128i*) (b + 8), vacc89AB);
238       _mm_store_si128((__m128i*) (b + 12), vaccCDEF);
239       _mm_store_si128((__m128i*) (b + 16), vaccGHIJ);
240       _mm_store_si128((__m128i*) (b + 20), vaccKLMN);
241       b += 24;
242     }
243     if XNN_UNLIKELY(c != 0) {
244       do {
245         const __m128i vxi0x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i0));
246         i0 += 8;
247         const __m128i vxi1x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i1));
248         i1 += 8;
249 
250         __m128i vacc01234567 = _mm_add_epi16(vxi0x01234567, vxi1x01234567);
251         const __m128i vxi2x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i2));
252         i2 += 8;
253 
254         vacc01234567 = _mm_add_epi16(vacc01234567, vxi2x01234567);
255         const __m128i vxi3x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i3));
256         i3 += 8;
257         vacc01234567 = _mm_add_epi16(vacc01234567, vxi3x01234567);
258         const __m128i vxi4x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i4));
259         i4 += 8;
260         vacc01234567 = _mm_add_epi16(vacc01234567, vxi4x01234567);
261         const __m128i vxi5x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i5));
262         i5 += 8;
263         vacc01234567 = _mm_add_epi16(vacc01234567, vxi5x01234567);
264         const __m128i vxi6x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i6));
265         i6 += 8;
266 
267         vacc01234567 = _mm_add_epi16(vacc01234567, vxi6x01234567);
268 
269         __m128i vacc0123 = _mm_cvtepu16_epi32(vacc01234567);
270         __m128i vacc4567 = _mm_unpackhi_epi16(vacc01234567, _mm_setzero_si128());
271 
272         vacc0123 = _mm_add_epi32(vacc0123, _mm_load_si128((const __m128i*) b));
273         vacc4567 = _mm_add_epi32(vacc4567, _mm_load_si128((const __m128i*) (b + 4)));
274 
275         _mm_store_si128((__m128i*) b, vacc0123);
276         _mm_store_si128((__m128i*) (b + 4), vacc4567);
277         b += 8;
278 
279         c = doz(c, 8);
280       } while (c != 0);
281     }
282   }
283 
284   i0 = (const uint8_t*) ((uintptr_t) i0 + input_increment);
285   i1 = (const uint8_t*) ((uintptr_t) i1 + input_increment);
286   if XNN_UNPREDICTABLE(rows < 2) {
287     i1 = zero;
288   }
289   i2 = (const uint8_t*) ((uintptr_t) i2 + input_increment);
290   if XNN_UNPREDICTABLE(rows <= 2) {
291     i2 = zero;
292   }
293   i3 = (const uint8_t*) ((uintptr_t) i3 + input_increment);
294   if XNN_UNPREDICTABLE(rows < 4) {
295     i3 = zero;
296   }
297   i4 = (const uint8_t*) ((uintptr_t) i4 + input_increment);
298   if XNN_UNPREDICTABLE(rows <= 4) {
299     i4 = zero;
300   }
301   i5 = (const uint8_t*) ((uintptr_t) i5 + input_increment);
302   if XNN_UNPREDICTABLE(rows < 6) {
303     i5 = zero;
304   }
305   i6 = (const uint8_t*) ((uintptr_t) i6 + input_increment);
306   if XNN_UNPREDICTABLE(rows <= 6) {
307     i6 = zero;
308   }
309 
310   const __m128 vscale = _mm_load_ps(params->fp32_sse4.scale);
311   const __m128 voutput_max_less_zero_point = _mm_load_ps(params->fp32_sse4.output_max_less_zero_point);
312   const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->fp32_sse4.output_zero_point);
313   const __m128i voutput_min = _mm_load_si128((const __m128i*) params->fp32_sse4.output_min);
314   for (; channels >= 24; channels -= 24) {
315     const __m128i vxi0x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i0));
316     const __m128i vxi0x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i0 + 8)));
317     const __m128i vxi0xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i0 + 16)));
318     i0 += 24;
319     const __m128i vxi1x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i1));
320     const __m128i vxi1x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i1 + 8)));
321     const __m128i vxi1xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i1 + 16)));
322     i1 += 24;
323 
324     __m128i vacc01234567 = _mm_add_epi16(vxi0x01234567, vxi1x01234567);
325     const __m128i vxi2x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i2));
326     __m128i vacc89ABCDEF = _mm_add_epi16(vxi0x89ABCDEF, vxi1x89ABCDEF);
327     const __m128i vxi2x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i2 + 8)));
328     __m128i vaccGHIJKLMN = _mm_add_epi16(vxi0xGHIJKLMN, vxi1xGHIJKLMN);
329     const __m128i vxi2xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i2 + 16)));
330     i2 += 24;
331 
332     vacc01234567 = _mm_add_epi16(vacc01234567, vxi2x01234567);
333     const __m128i vxi3x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i3));
334     vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi2x89ABCDEF);
335     const __m128i vxi3x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i3 + 8)));
336     vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi2xGHIJKLMN);
337     const __m128i vxi3xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i3 + 16)));
338     i3 += 24;
339     vacc01234567 = _mm_add_epi16(vacc01234567, vxi3x01234567);
340     const __m128i vxi4x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i4));
341     vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi3x89ABCDEF);
342     const __m128i vxi4x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i4 + 8)));
343     vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi3xGHIJKLMN);
344     const __m128i vxi4xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i4 + 16)));
345     i4 += 24;
346     vacc01234567 = _mm_add_epi16(vacc01234567, vxi4x01234567);
347     const __m128i vxi5x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i5));
348     vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi4x89ABCDEF);
349     const __m128i vxi5x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i5 + 8)));
350     vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi4xGHIJKLMN);
351     const __m128i vxi5xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i5 + 16)));
352     i5 += 24;
353     vacc01234567 = _mm_add_epi16(vacc01234567, vxi5x01234567);
354     const __m128i vxi6x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i6));
355     vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi5x89ABCDEF);
356     const __m128i vxi6x89ABCDEF = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i6 + 8)));
357     vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi5xGHIJKLMN);
358     const __m128i vxi6xGHIJKLMN = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) (i6 + 16)));
359     i6 += 24;
360 
361     vacc01234567 = _mm_add_epi16(vacc01234567, vxi6x01234567);
362     vacc89ABCDEF = _mm_add_epi16(vacc89ABCDEF, vxi6x89ABCDEF);
363     vaccGHIJKLMN = _mm_add_epi16(vaccGHIJKLMN, vxi6xGHIJKLMN);
364 
365     const __m128i vzero = _mm_setzero_si128();
366     __m128i vacc0123 = _mm_cvtepu16_epi32(vacc01234567);
367     __m128i vacc4567 = _mm_unpackhi_epi16(vacc01234567, vzero);
368     __m128i vacc89AB = _mm_cvtepu16_epi32(vacc89ABCDEF);
369     __m128i vaccCDEF = _mm_unpackhi_epi16(vacc89ABCDEF, vzero);
370     __m128i vaccGHIJ = _mm_cvtepu16_epi32(vaccGHIJKLMN);
371     __m128i vaccKLMN = _mm_unpackhi_epi16(vaccGHIJKLMN, vzero);
372 
373     vacc0123 = _mm_add_epi32(vacc0123, _mm_load_si128((const __m128i*) buffer));
374     vacc4567 = _mm_add_epi32(vacc4567, _mm_load_si128((const __m128i*) (buffer + 4)));
375     vacc89AB = _mm_add_epi32(vacc89AB, _mm_load_si128((const __m128i*) (buffer + 8)));
376     vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_load_si128((const __m128i*) (buffer + 12)));
377     vaccGHIJ = _mm_add_epi32(vaccGHIJ, _mm_load_si128((const __m128i*) (buffer + 16)));
378     vaccKLMN = _mm_add_epi32(vaccKLMN, _mm_load_si128((const __m128i*) (buffer + 20)));
379     buffer += 24;
380 
381     __m128 vfpacc0123 = _mm_cvtepi32_ps(vacc0123);
382     __m128 vfpacc4567 = _mm_cvtepi32_ps(vacc4567);
383     __m128 vfpacc89AB = _mm_cvtepi32_ps(vacc89AB);
384     __m128 vfpaccCDEF = _mm_cvtepi32_ps(vaccCDEF);
385     __m128 vfpaccGHIJ = _mm_cvtepi32_ps(vaccGHIJ);
386     __m128 vfpaccKLMN = _mm_cvtepi32_ps(vaccKLMN);
387 
388     vfpacc0123 = _mm_mul_ps(vfpacc0123, vscale);
389     vfpacc4567 = _mm_mul_ps(vfpacc4567, vscale);
390     vfpacc89AB = _mm_mul_ps(vfpacc89AB, vscale);
391     vfpaccCDEF = _mm_mul_ps(vfpaccCDEF, vscale);
392     vfpaccGHIJ = _mm_mul_ps(vfpaccGHIJ, vscale);
393     vfpaccKLMN = _mm_mul_ps(vfpaccKLMN, vscale);
394 
395     vfpacc0123 = _mm_min_ps(vfpacc0123, voutput_max_less_zero_point);
396     vfpacc4567 = _mm_min_ps(vfpacc4567, voutput_max_less_zero_point);
397     vfpacc89AB = _mm_min_ps(vfpacc89AB, voutput_max_less_zero_point);
398     vfpaccCDEF = _mm_min_ps(vfpaccCDEF, voutput_max_less_zero_point);
399     vfpaccGHIJ = _mm_min_ps(vfpaccGHIJ, voutput_max_less_zero_point);
400     vfpaccKLMN = _mm_min_ps(vfpaccKLMN, voutput_max_less_zero_point);
401 
402     vacc0123 = _mm_cvtps_epi32(vfpacc0123);
403     vacc4567 = _mm_cvtps_epi32(vfpacc4567);
404     vacc89AB = _mm_cvtps_epi32(vfpacc89AB);
405     vaccCDEF = _mm_cvtps_epi32(vfpaccCDEF);
406     vaccGHIJ = _mm_cvtps_epi32(vfpaccGHIJ);
407     vaccKLMN = _mm_cvtps_epi32(vfpaccKLMN);
408 
409     __m128i vout01234567 = _mm_adds_epi16(_mm_packs_epi32(vacc0123, vacc4567), voutput_zero_point);
410     __m128i vout89ABCDEF = _mm_adds_epi16(_mm_packs_epi32(vacc89AB, vaccCDEF), voutput_zero_point);
411     __m128i voutGHIJKLMN = _mm_adds_epi16(_mm_packs_epi32(vaccGHIJ, vaccKLMN), voutput_zero_point);
412 
413     __m128i vout0123456789ABCDEF = _mm_packus_epi16(vout01234567, vout89ABCDEF);
414     __m128i voutGHIJKLMNGHIJKLMN = _mm_packus_epi16(voutGHIJKLMN, voutGHIJKLMN);
415 
416     vout0123456789ABCDEF = _mm_max_epu8(vout0123456789ABCDEF, voutput_min);
417     voutGHIJKLMNGHIJKLMN = _mm_max_epu8(voutGHIJKLMNGHIJKLMN, voutput_min);
418 
419     _mm_storeu_si128((__m128i*) output, vout0123456789ABCDEF);
420     _mm_storel_epi64((__m128i*) (output + 16), voutGHIJKLMNGHIJKLMN);
421     output += 24;
422   }
423   if XNN_UNLIKELY(channels != 0) {
424     do {
425       const __m128i vxi0x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i0));
426       i0 += 8;
427       const __m128i vxi1x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i1));
428       i1 += 8;
429 
430       __m128i vacc01234567 = _mm_add_epi16(vxi0x01234567, vxi1x01234567);
431       const __m128i vxi2x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i2));
432       i2 += 8;
433 
434       vacc01234567 = _mm_add_epi16(vacc01234567, vxi2x01234567);
435       const __m128i vxi3x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i3));
436       i3 += 8;
437       vacc01234567 = _mm_add_epi16(vacc01234567, vxi3x01234567);
438       const __m128i vxi4x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i4));
439       i4 += 8;
440       vacc01234567 = _mm_add_epi16(vacc01234567, vxi4x01234567);
441       const __m128i vxi5x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i5));
442       i5 += 8;
443       vacc01234567 = _mm_add_epi16(vacc01234567, vxi5x01234567);
444       const __m128i vxi6x01234567 = _mm_cvtepu8_epi16(_mm_loadl_epi64((const __m128i*) i6));
445       i6 += 8;
446 
447       vacc01234567 = _mm_add_epi16(vacc01234567, vxi6x01234567);
448 
449       __m128i vacc0123 = _mm_cvtepu16_epi32(vacc01234567);
450       __m128i vacc4567 = _mm_unpackhi_epi16(vacc01234567, _mm_setzero_si128());
451 
452       vacc0123 = _mm_add_epi32(vacc0123, _mm_load_si128((const __m128i*) buffer));
453       vacc4567 = _mm_add_epi32(vacc4567, _mm_load_si128((const __m128i*) (buffer + 4)));
454       buffer += 8;
455 
456       __m128 vfpacc0123 = _mm_cvtepi32_ps(vacc0123);
457       __m128 vfpacc4567 = _mm_cvtepi32_ps(vacc4567);
458 
459       vfpacc0123 = _mm_mul_ps(vfpacc0123, vscale);
460       vfpacc4567 = _mm_mul_ps(vfpacc4567, vscale);
461 
462       vfpacc0123 = _mm_min_ps(vfpacc0123, voutput_max_less_zero_point);
463       vfpacc4567 = _mm_min_ps(vfpacc4567, voutput_max_less_zero_point);
464 
465       vacc0123 = _mm_cvtps_epi32(vfpacc0123);
466       vacc4567 = _mm_cvtps_epi32(vfpacc4567);
467 
468       __m128i vout01234567 = _mm_adds_epi16(_mm_packs_epi32(vacc0123, vacc4567), voutput_zero_point);
469 
470       __m128i vout0123456701234567 = _mm_packus_epi16(vout01234567, vout01234567);
471       vout0123456701234567 = _mm_max_epu8(vout0123456701234567, voutput_min);
472 
473       if XNN_LIKELY(channels >= 8) {
474         _mm_storel_epi64((__m128i*) output, vout0123456701234567);
475         output += 8;
476         channels -= 8;
477       } else {
478         if (channels & 4) {
479           unaligned_store_u32(output, (uint32_t) _mm_cvtsi128_si32(vout0123456701234567));
480           vout0123456701234567 = _mm_srli_epi64(vout0123456701234567, 32);
481           output += 4;
482         }
483         if (channels & 2) {
484           unaligned_store_u16(output, (uint16_t) _mm_extract_epi16(vout0123456701234567, 0));
485           vout0123456701234567 = _mm_srli_epi32(vout0123456701234567, 16);
486           output += 2;
487         }
488         if (channels & 1) {
489           *output = (uint8_t) _mm_extract_epi8(vout0123456701234567, 0);
490           output += 1;
491         }
492         channels = 0;
493       }
494     } while (channels != 0);
495   }
496 }
497