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1 // Auto-generated file. Do not edit!
2 //   Template: src/qs8-dwconv/unipass-sse-mul16.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/dwconv.h>
15 
16 
xnn_qs8_dwconv_minmax_fp32_ukernel_up16x9__sse41_mul16(size_t channels,size_t output_width,const int8_t ** input,const void * weights,int8_t * output,size_t input_stride,size_t output_increment,size_t input_offset,const int8_t * zero,const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])17 void xnn_qs8_dwconv_minmax_fp32_ukernel_up16x9__sse41_mul16(
18     size_t channels,
19     size_t output_width,
20     const int8_t** input,
21     const void* weights,
22     int8_t* output,
23     size_t input_stride,
24     size_t output_increment,
25     size_t input_offset,
26     const int8_t* zero,
27     const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
28 {
29   assert(channels != 0);
30   assert(output_width != 0);
31 
32   do {
33     const int8_t* i0 = input[0];
34     assert(i0 != NULL);
35     if XNN_UNPREDICTABLE(i0 != zero) {
36       i0 = (const int8_t*) ((uintptr_t) i0 + input_offset);
37     }
38     const int8_t* i1 = input[1];
39     assert(i1 != NULL);
40     if XNN_UNPREDICTABLE(i1 != zero) {
41       i1 = (const int8_t*) ((uintptr_t) i1 + input_offset);
42     }
43     const int8_t* i2 = input[2];
44     assert(i2 != NULL);
45     if XNN_UNPREDICTABLE(i2 != zero) {
46       i2 = (const int8_t*) ((uintptr_t) i2 + input_offset);
47     }
48     const int8_t* i3 = input[3];
49     assert(i3 != NULL);
50     if XNN_UNPREDICTABLE(i3 != zero) {
51       i3 = (const int8_t*) ((uintptr_t) i3 + input_offset);
52     }
53     const int8_t* i4 = input[4];
54     assert(i4 != NULL);
55     if XNN_UNPREDICTABLE(i4 != zero) {
56       i4 = (const int8_t*) ((uintptr_t) i4 + input_offset);
57     }
58     const int8_t* i5 = input[5];
59     assert(i5 != NULL);
60     if XNN_UNPREDICTABLE(i5 != zero) {
61       i5 = (const int8_t*) ((uintptr_t) i5 + input_offset);
62     }
63     const int8_t* i6 = input[6];
64     assert(i6 != NULL);
65     if XNN_UNPREDICTABLE(i6 != zero) {
66       i6 = (const int8_t*) ((uintptr_t) i6 + input_offset);
67     }
68     const int8_t* i7 = input[7];
69     assert(i7 != NULL);
70     if XNN_UNPREDICTABLE(i7 != zero) {
71       i7 = (const int8_t*) ((uintptr_t) i7 + input_offset);
72     }
73     const int8_t* i8 = input[8];
74     assert(i8 != NULL);
75     if XNN_UNPREDICTABLE(i8 != zero) {
76       i8 = (const int8_t*) ((uintptr_t) i8 + input_offset);
77     }
78     input = (const int8_t**) ((uintptr_t) input + input_stride);
79 
80     size_t c = channels;
81     const void* w = weights;
82     for (; c >= 16; c -= 16) {
83       __m128i vacc0123 = _mm_loadu_si128((const __m128i*) w);
84       __m128i vacc4567 = _mm_loadu_si128((const __m128i*) ((const int32_t*) w + 4));
85       __m128i vacc89AB = _mm_loadu_si128((const __m128i*) ((const int32_t*) w + 8));
86       __m128i vaccCDEF = _mm_loadu_si128((const __m128i*) ((const int32_t*) w + 12));
87 
88 
89       const __m128i vi0x01234567 = _mm_loadl_epi64((const __m128i*) i0);
90       const __m128i vxi0x01234567 = _mm_cvtepi8_epi16(vi0x01234567);
91       const __m128i vk0x01234567 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 0 * sizeof(int8_t)));
92       const __m128i vxk0x01234567 = _mm_cvtepi8_epi16(vk0x01234567);
93       const __m128i vi0x89ABCDEF = _mm_loadl_epi64((const __m128i*) (i0 + 8));
94       const __m128i vxi0x89ABCDEF = _mm_cvtepi8_epi16(vi0x89ABCDEF);
95       const __m128i vk0x89ABCDEF = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 8 * sizeof(int8_t)));
96       const __m128i vxk0x89ABCDEF = _mm_cvtepi8_epi16(vk0x89ABCDEF);
97       i0 += 16;
98 
99 
100       __m128i vprod01234567 = _mm_mullo_epi16(vxi0x01234567, vxk0x01234567);
101       __m128i vprod89ABCDEF = _mm_mullo_epi16(vxi0x89ABCDEF, vxk0x89ABCDEF);
102 
103       vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
104       vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
105       vacc89AB = _mm_add_epi32(vacc89AB, _mm_cvtepi16_epi32(vprod89ABCDEF));
106       vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_srai_epi32(_mm_unpackhi_epi16(vprod89ABCDEF, vprod89ABCDEF), 16));
107 
108       const __m128i vi1x01234567 = _mm_loadl_epi64((const __m128i*) i1);
109       const __m128i vxi1x01234567 = _mm_cvtepi8_epi16(vi1x01234567);
110       const __m128i vk1x01234567 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 16 * sizeof(int8_t)));
111       const __m128i vxk1x01234567 = _mm_cvtepi8_epi16(vk1x01234567);
112       const __m128i vi1x89ABCDEF = _mm_loadl_epi64((const __m128i*) (i1 + 8));
113       const __m128i vxi1x89ABCDEF = _mm_cvtepi8_epi16(vi1x89ABCDEF);
114       const __m128i vk1x89ABCDEF = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 24 * sizeof(int8_t)));
115       const __m128i vxk1x89ABCDEF = _mm_cvtepi8_epi16(vk1x89ABCDEF);
116       i1 += 16;
117 
118 
119       vprod01234567 = _mm_mullo_epi16(vxi1x01234567, vxk1x01234567);
120       vprod89ABCDEF = _mm_mullo_epi16(vxi1x89ABCDEF, vxk1x89ABCDEF);
121 
122       vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
123       vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
124       vacc89AB = _mm_add_epi32(vacc89AB, _mm_cvtepi16_epi32(vprod89ABCDEF));
125       vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_srai_epi32(_mm_unpackhi_epi16(vprod89ABCDEF, vprod89ABCDEF), 16));
126 
127       const __m128i vi2x01234567 = _mm_loadl_epi64((const __m128i*) i2);
128       const __m128i vxi2x01234567 = _mm_cvtepi8_epi16(vi2x01234567);
129       const __m128i vk2x01234567 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 32 * sizeof(int8_t)));
130       const __m128i vxk2x01234567 = _mm_cvtepi8_epi16(vk2x01234567);
131       const __m128i vi2x89ABCDEF = _mm_loadl_epi64((const __m128i*) (i2 + 8));
132       const __m128i vxi2x89ABCDEF = _mm_cvtepi8_epi16(vi2x89ABCDEF);
133       const __m128i vk2x89ABCDEF = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 40 * sizeof(int8_t)));
134       const __m128i vxk2x89ABCDEF = _mm_cvtepi8_epi16(vk2x89ABCDEF);
135       i2 += 16;
136 
137 
138       vprod01234567 = _mm_mullo_epi16(vxi2x01234567, vxk2x01234567);
139       vprod89ABCDEF = _mm_mullo_epi16(vxi2x89ABCDEF, vxk2x89ABCDEF);
140 
141       vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
142       vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
143       vacc89AB = _mm_add_epi32(vacc89AB, _mm_cvtepi16_epi32(vprod89ABCDEF));
144       vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_srai_epi32(_mm_unpackhi_epi16(vprod89ABCDEF, vprod89ABCDEF), 16));
145 
146       const __m128i vi3x01234567 = _mm_loadl_epi64((const __m128i*) i3);
147       const __m128i vxi3x01234567 = _mm_cvtepi8_epi16(vi3x01234567);
148       const __m128i vk3x01234567 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 48 * sizeof(int8_t)));
149       const __m128i vxk3x01234567 = _mm_cvtepi8_epi16(vk3x01234567);
150       const __m128i vi3x89ABCDEF = _mm_loadl_epi64((const __m128i*) (i3 + 8));
151       const __m128i vxi3x89ABCDEF = _mm_cvtepi8_epi16(vi3x89ABCDEF);
152       const __m128i vk3x89ABCDEF = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 56 * sizeof(int8_t)));
153       const __m128i vxk3x89ABCDEF = _mm_cvtepi8_epi16(vk3x89ABCDEF);
154       i3 += 16;
155 
156 
157       vprod01234567 = _mm_mullo_epi16(vxi3x01234567, vxk3x01234567);
158       vprod89ABCDEF = _mm_mullo_epi16(vxi3x89ABCDEF, vxk3x89ABCDEF);
159 
160       vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
161       vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
162       vacc89AB = _mm_add_epi32(vacc89AB, _mm_cvtepi16_epi32(vprod89ABCDEF));
163       vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_srai_epi32(_mm_unpackhi_epi16(vprod89ABCDEF, vprod89ABCDEF), 16));
164 
165       const __m128i vi4x01234567 = _mm_loadl_epi64((const __m128i*) i4);
166       const __m128i vxi4x01234567 = _mm_cvtepi8_epi16(vi4x01234567);
167       const __m128i vk4x01234567 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 64 * sizeof(int8_t)));
168       const __m128i vxk4x01234567 = _mm_cvtepi8_epi16(vk4x01234567);
169       const __m128i vi4x89ABCDEF = _mm_loadl_epi64((const __m128i*) (i4 + 8));
170       const __m128i vxi4x89ABCDEF = _mm_cvtepi8_epi16(vi4x89ABCDEF);
171       const __m128i vk4x89ABCDEF = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 72 * sizeof(int8_t)));
172       const __m128i vxk4x89ABCDEF = _mm_cvtepi8_epi16(vk4x89ABCDEF);
173       i4 += 16;
174 
175 
176       vprod01234567 = _mm_mullo_epi16(vxi4x01234567, vxk4x01234567);
177       vprod89ABCDEF = _mm_mullo_epi16(vxi4x89ABCDEF, vxk4x89ABCDEF);
178 
179       vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
180       vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
181       vacc89AB = _mm_add_epi32(vacc89AB, _mm_cvtepi16_epi32(vprod89ABCDEF));
182       vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_srai_epi32(_mm_unpackhi_epi16(vprod89ABCDEF, vprod89ABCDEF), 16));
183 
184       const __m128i vi5x01234567 = _mm_loadl_epi64((const __m128i*) i5);
185       const __m128i vxi5x01234567 = _mm_cvtepi8_epi16(vi5x01234567);
186       const __m128i vk5x01234567 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 80 * sizeof(int8_t)));
187       const __m128i vxk5x01234567 = _mm_cvtepi8_epi16(vk5x01234567);
188       const __m128i vi5x89ABCDEF = _mm_loadl_epi64((const __m128i*) (i5 + 8));
189       const __m128i vxi5x89ABCDEF = _mm_cvtepi8_epi16(vi5x89ABCDEF);
190       const __m128i vk5x89ABCDEF = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 88 * sizeof(int8_t)));
191       const __m128i vxk5x89ABCDEF = _mm_cvtepi8_epi16(vk5x89ABCDEF);
192       i5 += 16;
193 
194 
195       vprod01234567 = _mm_mullo_epi16(vxi5x01234567, vxk5x01234567);
196       vprod89ABCDEF = _mm_mullo_epi16(vxi5x89ABCDEF, vxk5x89ABCDEF);
197 
198       vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
199       vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
200       vacc89AB = _mm_add_epi32(vacc89AB, _mm_cvtepi16_epi32(vprod89ABCDEF));
201       vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_srai_epi32(_mm_unpackhi_epi16(vprod89ABCDEF, vprod89ABCDEF), 16));
202 
203       const __m128i vi6x01234567 = _mm_loadl_epi64((const __m128i*) i6);
204       const __m128i vxi6x01234567 = _mm_cvtepi8_epi16(vi6x01234567);
205       const __m128i vk6x01234567 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 96 * sizeof(int8_t)));
206       const __m128i vxk6x01234567 = _mm_cvtepi8_epi16(vk6x01234567);
207       const __m128i vi6x89ABCDEF = _mm_loadl_epi64((const __m128i*) (i6 + 8));
208       const __m128i vxi6x89ABCDEF = _mm_cvtepi8_epi16(vi6x89ABCDEF);
209       const __m128i vk6x89ABCDEF = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 104 * sizeof(int8_t)));
210       const __m128i vxk6x89ABCDEF = _mm_cvtepi8_epi16(vk6x89ABCDEF);
211       i6 += 16;
212 
213 
214       vprod01234567 = _mm_mullo_epi16(vxi6x01234567, vxk6x01234567);
215       vprod89ABCDEF = _mm_mullo_epi16(vxi6x89ABCDEF, vxk6x89ABCDEF);
216 
217       vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
218       vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
219       vacc89AB = _mm_add_epi32(vacc89AB, _mm_cvtepi16_epi32(vprod89ABCDEF));
220       vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_srai_epi32(_mm_unpackhi_epi16(vprod89ABCDEF, vprod89ABCDEF), 16));
221 
222       const __m128i vi7x01234567 = _mm_loadl_epi64((const __m128i*) i7);
223       const __m128i vxi7x01234567 = _mm_cvtepi8_epi16(vi7x01234567);
224       const __m128i vk7x01234567 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 112 * sizeof(int8_t)));
225       const __m128i vxk7x01234567 = _mm_cvtepi8_epi16(vk7x01234567);
226       const __m128i vi7x89ABCDEF = _mm_loadl_epi64((const __m128i*) (i7 + 8));
227       const __m128i vxi7x89ABCDEF = _mm_cvtepi8_epi16(vi7x89ABCDEF);
228       const __m128i vk7x89ABCDEF = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 120 * sizeof(int8_t)));
229       const __m128i vxk7x89ABCDEF = _mm_cvtepi8_epi16(vk7x89ABCDEF);
230       i7 += 16;
231 
232 
233       vprod01234567 = _mm_mullo_epi16(vxi7x01234567, vxk7x01234567);
234       vprod89ABCDEF = _mm_mullo_epi16(vxi7x89ABCDEF, vxk7x89ABCDEF);
235 
236       vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
237       vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
238       vacc89AB = _mm_add_epi32(vacc89AB, _mm_cvtepi16_epi32(vprod89ABCDEF));
239       vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_srai_epi32(_mm_unpackhi_epi16(vprod89ABCDEF, vprod89ABCDEF), 16));
240 
241       const __m128i vi8x01234567 = _mm_loadl_epi64((const __m128i*) i8);
242       const __m128i vxi8x01234567 = _mm_cvtepi8_epi16(vi8x01234567);
243       const __m128i vk8x01234567 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 128 * sizeof(int8_t)));
244       const __m128i vxk8x01234567 = _mm_cvtepi8_epi16(vk8x01234567);
245       const __m128i vi8x89ABCDEF = _mm_loadl_epi64((const __m128i*) (i8 + 8));
246       const __m128i vxi8x89ABCDEF = _mm_cvtepi8_epi16(vi8x89ABCDEF);
247       const __m128i vk8x89ABCDEF = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16 * sizeof(int32_t) + 136 * sizeof(int8_t)));
248       const __m128i vxk8x89ABCDEF = _mm_cvtepi8_epi16(vk8x89ABCDEF);
249       i8 += 16;
250 
251 
252       vprod01234567 = _mm_mullo_epi16(vxi8x01234567, vxk8x01234567);
253       vprod89ABCDEF = _mm_mullo_epi16(vxi8x89ABCDEF, vxk8x89ABCDEF);
254 
255       vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
256       vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
257       vacc89AB = _mm_add_epi32(vacc89AB, _mm_cvtepi16_epi32(vprod89ABCDEF));
258       vaccCDEF = _mm_add_epi32(vaccCDEF, _mm_srai_epi32(_mm_unpackhi_epi16(vprod89ABCDEF, vprod89ABCDEF), 16));
259 
260       w = (const void*) ((uintptr_t) w + 16 * sizeof(int32_t) + 144 * sizeof(int8_t));
261 
262       __m128 vscaled0123 = _mm_cvtepi32_ps(vacc0123);
263       __m128 vscaled4567 = _mm_cvtepi32_ps(vacc4567);
264       __m128 vscaled89AB = _mm_cvtepi32_ps(vacc89AB);
265       __m128 vscaledCDEF = _mm_cvtepi32_ps(vaccCDEF);
266 
267       const __m128 vscale = _mm_load_ps(params->fp32_sse4.scale);
268       vscaled0123 = _mm_mul_ps(vscaled0123, vscale);
269       vscaled4567 = _mm_mul_ps(vscaled4567, vscale);
270       vscaled89AB = _mm_mul_ps(vscaled89AB, vscale);
271       vscaledCDEF = _mm_mul_ps(vscaledCDEF, vscale);
272 
273       const __m128 voutput_max_less_zero_point = _mm_load_ps(params->fp32_sse4.output_max_less_zero_point);
274       vscaled0123 = _mm_min_ps(vscaled0123, voutput_max_less_zero_point);
275       vscaled4567 = _mm_min_ps(vscaled4567, voutput_max_less_zero_point);
276       vscaled89AB = _mm_min_ps(vscaled89AB, voutput_max_less_zero_point);
277       vscaledCDEF = _mm_min_ps(vscaledCDEF, voutput_max_less_zero_point);
278 
279       vacc0123 = _mm_cvtps_epi32(vscaled0123);
280       vacc4567 = _mm_cvtps_epi32(vscaled4567);
281       vacc89AB = _mm_cvtps_epi32(vscaled89AB);
282       vaccCDEF = _mm_cvtps_epi32(vscaledCDEF);
283 
284       const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->fp32_sse4.output_zero_point);
285       __m128i vout01234567 = _mm_adds_epi16(_mm_packs_epi32(vacc0123, vacc4567), voutput_zero_point);
286       __m128i vout89ABCDEF = _mm_adds_epi16(_mm_packs_epi32(vacc89AB, vaccCDEF), voutput_zero_point);
287 
288 
289       __m128i vout0123456789ABCDEF = _mm_packs_epi16(vout01234567, vout89ABCDEF);
290 
291       const __m128i voutput_min = _mm_load_si128((const __m128i*) params->fp32_sse4.output_min);
292       vout0123456789ABCDEF = _mm_max_epi8(vout0123456789ABCDEF, voutput_min);
293 
294       _mm_storeu_si128((__m128i*) output, vout0123456789ABCDEF);
295       output += 16;
296     }
297     if XNN_UNLIKELY(c != 0) {
298       const int8_t* k = (const int8_t*) ((const int32_t*) w + 16);
299       do {
300         __m128i vacc0123 = _mm_loadu_si128((const __m128i*) w);
301         __m128i vacc4567 = _mm_loadu_si128((const __m128i*) ((const int32_t*) w + 4));
302 
303 
304         const __m128i vi0x01234567 = _mm_loadl_epi64((const __m128i*) i0);
305         const __m128i vxi0x01234567 = _mm_cvtepi8_epi16(vi0x01234567);
306         const __m128i vk0x01234567 = _mm_loadl_epi64((const __m128i*) k);
307         const __m128i vxk0x01234567 = _mm_cvtepi8_epi16(vk0x01234567);
308         i0 += 8;
309 
310 
311         __m128i vprod01234567 = _mm_mullo_epi16(vxi0x01234567, vxk0x01234567);
312 
313         vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
314         vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
315 
316         const __m128i vi1x01234567 = _mm_loadl_epi64((const __m128i*) i1);
317         const __m128i vxi1x01234567 = _mm_cvtepi8_epi16(vi1x01234567);
318         const __m128i vk1x01234567 = _mm_loadl_epi64((const __m128i*) (k + 16));
319         const __m128i vxk1x01234567 = _mm_cvtepi8_epi16(vk1x01234567);
320         i1 += 8;
321 
322 
323         vprod01234567 = _mm_mullo_epi16(vxi1x01234567, vxk1x01234567);
324 
325         vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
326         vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
327 
328         const __m128i vi2x01234567 = _mm_loadl_epi64((const __m128i*) i2);
329         const __m128i vxi2x01234567 = _mm_cvtepi8_epi16(vi2x01234567);
330         const __m128i vk2x01234567 = _mm_loadl_epi64((const __m128i*) (k + 32));
331         const __m128i vxk2x01234567 = _mm_cvtepi8_epi16(vk2x01234567);
332         i2 += 8;
333 
334 
335         vprod01234567 = _mm_mullo_epi16(vxi2x01234567, vxk2x01234567);
336 
337         vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
338         vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
339 
340         const __m128i vi3x01234567 = _mm_loadl_epi64((const __m128i*) i3);
341         const __m128i vxi3x01234567 = _mm_cvtepi8_epi16(vi3x01234567);
342         const __m128i vk3x01234567 = _mm_loadl_epi64((const __m128i*) (k + 48));
343         const __m128i vxk3x01234567 = _mm_cvtepi8_epi16(vk3x01234567);
344         i3 += 8;
345 
346 
347         vprod01234567 = _mm_mullo_epi16(vxi3x01234567, vxk3x01234567);
348 
349         vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
350         vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
351 
352         const __m128i vi4x01234567 = _mm_loadl_epi64((const __m128i*) i4);
353         const __m128i vxi4x01234567 = _mm_cvtepi8_epi16(vi4x01234567);
354         const __m128i vk4x01234567 = _mm_loadl_epi64((const __m128i*) (k + 64));
355         const __m128i vxk4x01234567 = _mm_cvtepi8_epi16(vk4x01234567);
356         i4 += 8;
357 
358 
359         vprod01234567 = _mm_mullo_epi16(vxi4x01234567, vxk4x01234567);
360 
361         vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
362         vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
363 
364         const __m128i vi5x01234567 = _mm_loadl_epi64((const __m128i*) i5);
365         const __m128i vxi5x01234567 = _mm_cvtepi8_epi16(vi5x01234567);
366         const __m128i vk5x01234567 = _mm_loadl_epi64((const __m128i*) (k + 80));
367         const __m128i vxk5x01234567 = _mm_cvtepi8_epi16(vk5x01234567);
368         i5 += 8;
369 
370 
371         vprod01234567 = _mm_mullo_epi16(vxi5x01234567, vxk5x01234567);
372 
373         vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
374         vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
375 
376         const __m128i vi6x01234567 = _mm_loadl_epi64((const __m128i*) i6);
377         const __m128i vxi6x01234567 = _mm_cvtepi8_epi16(vi6x01234567);
378         const __m128i vk6x01234567 = _mm_loadl_epi64((const __m128i*) (k + 96));
379         const __m128i vxk6x01234567 = _mm_cvtepi8_epi16(vk6x01234567);
380         i6 += 8;
381 
382 
383         vprod01234567 = _mm_mullo_epi16(vxi6x01234567, vxk6x01234567);
384 
385         vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
386         vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
387 
388         const __m128i vi7x01234567 = _mm_loadl_epi64((const __m128i*) i7);
389         const __m128i vxi7x01234567 = _mm_cvtepi8_epi16(vi7x01234567);
390         const __m128i vk7x01234567 = _mm_loadl_epi64((const __m128i*) (k + 112));
391         const __m128i vxk7x01234567 = _mm_cvtepi8_epi16(vk7x01234567);
392         i7 += 8;
393 
394 
395         vprod01234567 = _mm_mullo_epi16(vxi7x01234567, vxk7x01234567);
396 
397         vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
398         vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
399 
400         const __m128i vi8x01234567 = _mm_loadl_epi64((const __m128i*) i8);
401         const __m128i vxi8x01234567 = _mm_cvtepi8_epi16(vi8x01234567);
402         const __m128i vk8x01234567 = _mm_loadl_epi64((const __m128i*) (k + 128));
403         const __m128i vxk8x01234567 = _mm_cvtepi8_epi16(vk8x01234567);
404         i8 += 8;
405 
406 
407         vprod01234567 = _mm_mullo_epi16(vxi8x01234567, vxk8x01234567);
408 
409         vacc0123 = _mm_add_epi32(vacc0123, _mm_cvtepi16_epi32(vprod01234567));
410         vacc4567 = _mm_add_epi32(vacc4567, _mm_srai_epi32(_mm_unpackhi_epi16(vprod01234567, vprod01234567), 16));
411 
412         k += 8;
413 
414         __m128 vscaled0123 = _mm_cvtepi32_ps(vacc0123);
415         __m128 vscaled4567 = _mm_cvtepi32_ps(vacc4567);
416 
417         const __m128 vscale = _mm_load_ps(params->fp32_sse4.scale);
418         vscaled0123 = _mm_mul_ps(vscaled0123, vscale);
419         vscaled4567 = _mm_mul_ps(vscaled4567, vscale);
420 
421         const __m128 voutput_max_less_zero_point = _mm_load_ps(params->fp32_sse4.output_max_less_zero_point);
422         vscaled0123 = _mm_min_ps(vscaled0123, voutput_max_less_zero_point);
423         vscaled4567 = _mm_min_ps(vscaled4567, voutput_max_less_zero_point);
424 
425         vacc0123 = _mm_cvtps_epi32(vscaled0123);
426         vacc4567 = _mm_cvtps_epi32(vscaled4567);
427 
428         w = (const void*) ((const int32_t*) w + 8);
429 
430         const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->fp32_sse4.output_zero_point);
431         __m128i vout01234567 = _mm_adds_epi16(_mm_packs_epi32(vacc0123, vacc4567), voutput_zero_point);
432 
433 
434         __m128i vout0123456701234567 = _mm_packs_epi16(vout01234567, vout01234567);
435 
436         vout0123456701234567 = _mm_max_epi8(vout0123456701234567, _mm_load_si128((const __m128i*) params->fp32_sse4.output_min));
437 
438         if XNN_LIKELY(c >= 8) {
439           _mm_storel_epi64((__m128i*) output, vout0123456701234567);
440           output += 8;
441           c -= 8;
442         } else {
443           if (c & 4) {
444             *((uint32_t*) output) = (uint32_t) _mm_cvtsi128_si32(vout0123456701234567);
445             vout0123456701234567 = _mm_srli_epi64(vout0123456701234567, 32);
446             output += 4;
447           }
448           if (c & 2) {
449             *((uint16_t*) output) = (uint16_t) _mm_extract_epi16(vout0123456701234567, 0);
450             vout0123456701234567 = _mm_srli_epi32(vout0123456701234567, 16);
451             output += 2;
452           }
453           if (c & 1) {
454             *output = (int8_t) _mm_extract_epi8(vout0123456701234567, 0);
455             output += 1;
456           }
457           c = 0;
458         }
459       } while (c != 0);
460     }
461 
462     output = (int8_t*) ((uintptr_t) output + output_increment);
463   } while (--output_width != 0);
464 }
465