1 // Auto-generated file. Do not edit!
2 //   Template: src/qs8-igemm/MRx4c2-sse.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/igemm.h>
15 #include <xnnpack/math.h>
16 
17 
xnn_qs8_igemm_minmax_ukernel_4x4c2__sse41_ld128(size_t mr,size_t nc,size_t kc,size_t ks,const int8_t ** restrict a,const void * restrict w,int8_t * restrict c,size_t cm_stride,size_t cn_stride,size_t a_offset,const int8_t * zero,const union xnn_qs8_gemm_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_qs8_igemm_minmax_ukernel_4x4c2__sse41_ld128(
19     size_t mr,
20     size_t nc,
21     size_t kc,
22     size_t ks,
23     const int8_t** restrict a,
24     const void* restrict w,
25     int8_t* restrict c,
26     size_t cm_stride,
27     size_t cn_stride,
28     size_t a_offset,
29     const int8_t* zero,
30     const union xnn_qs8_gemm_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
31 {
32   assert(mr != 0);
33   assert(mr <= 4);
34   assert(nc != 0);
35   assert(kc != 0);
36   assert(ks != 0);
37   assert(ks % (4 * sizeof(void*)) == 0);
38   assert(a_offset % sizeof(int8_t) == 0);
39   assert(a != NULL);
40   assert(w != NULL);
41   assert(c != NULL);
42 
43   kc = round_up_po2(kc, 2);
44   int8_t* c0 = c;
45   int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
46   if XNN_UNPREDICTABLE(mr < 2) {
47     c1 = c0;
48   }
49   int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
50   if XNN_UNPREDICTABLE(mr <= 2) {
51     c2 = c1;
52   }
53   int8_t* c3 = (int8_t*) ((uintptr_t) c2 + cm_stride);
54   if XNN_UNPREDICTABLE(mr != 4) {
55     c3 = c2;
56   }
57 
58   do {
59     __m128i vacc0x0123 = _mm_loadu_si128((const __m128i*) w);
60     __m128i vacc1x0123 = vacc0x0123;
61     __m128i vacc2x0123 = vacc0x0123;
62     __m128i vacc3x0123 = vacc0x0123;
63     w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
64 
65     size_t p = ks;
66     do {
67       const int8_t* restrict a0 = a[0];
68       if XNN_UNPREDICTABLE(a0 != zero) {
69         a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
70       }
71       const int8_t* restrict a1 = a[1];
72       if XNN_UNPREDICTABLE(a1 != zero) {
73         a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);
74       }
75       const int8_t* restrict a2 = a[2];
76       if XNN_UNPREDICTABLE(a2 != zero) {
77         a2 = (const int8_t*) ((uintptr_t) a2 + a_offset);
78       }
79       const int8_t* restrict a3 = a[3];
80       if XNN_UNPREDICTABLE(a3 != zero) {
81         a3 = (const int8_t*) ((uintptr_t) a3 + a_offset);
82       }
83       a += 4;
84 
85       size_t k = kc;
86       while (k >= 8 * sizeof(int8_t)) {
87         const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
88         const __m128i vxa0 = _mm_cvtepi8_epi16(va0);
89         a0 += 8;
90         const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
91         const __m128i vxa1 = _mm_cvtepi8_epi16(va1);
92         a1 += 8;
93         const __m128i va2 = _mm_loadl_epi64((const __m128i*) a2);
94         const __m128i vxa2 = _mm_cvtepi8_epi16(va2);
95         a2 += 8;
96         const __m128i va3 = _mm_loadl_epi64((const __m128i*) a3);
97         const __m128i vxa3 = _mm_cvtepi8_epi16(va3);
98         a3 += 8;
99 
100         const __m128i vb01 = _mm_loadu_si128((const __m128i*) w);
101         const __m128i vsb01 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb01);
102         const __m128i vxb0 = _mm_unpacklo_epi8(vb01, vsb01);
103         const __m128i vxb1 = _mm_unpackhi_epi8(vb01, vsb01);
104 
105         vacc0x0123 = _mm_add_epi32(vacc0x0123,
106           _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
107         vacc1x0123 = _mm_add_epi32(vacc1x0123,
108           _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
109         vacc2x0123 = _mm_add_epi32(vacc2x0123,
110           _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
111         vacc3x0123 = _mm_add_epi32(vacc3x0123,
112           _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
113 
114         vacc0x0123 = _mm_add_epi32(vacc0x0123,
115           _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
116         vacc1x0123 = _mm_add_epi32(vacc1x0123,
117           _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
118         vacc2x0123 = _mm_add_epi32(vacc2x0123,
119           _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
120         vacc3x0123 = _mm_add_epi32(vacc3x0123,
121           _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
122         const __m128i vb23 = _mm_loadu_si128((const __m128i*) ((uintptr_t) w + 16));
123         const __m128i vsb23 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb23);
124         const __m128i vxb2 = _mm_unpacklo_epi8(vb23, vsb23);
125         const __m128i vxb3 = _mm_unpackhi_epi8(vb23, vsb23);
126 
127         vacc0x0123 = _mm_add_epi32(vacc0x0123,
128           _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
129         vacc1x0123 = _mm_add_epi32(vacc1x0123,
130           _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
131         vacc2x0123 = _mm_add_epi32(vacc2x0123,
132           _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
133         vacc3x0123 = _mm_add_epi32(vacc3x0123,
134           _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
135 
136         vacc0x0123 = _mm_add_epi32(vacc0x0123,
137           _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
138         vacc1x0123 = _mm_add_epi32(vacc1x0123,
139           _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
140         vacc2x0123 = _mm_add_epi32(vacc2x0123,
141           _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
142         vacc3x0123 = _mm_add_epi32(vacc3x0123,
143           _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
144 
145         w = (const void*) ((uintptr_t) w + 32);
146         k -= 8 * sizeof(int8_t);
147       }
148       if (k != 0) {
149         const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
150         const __m128i vxa0 = _mm_cvtepi8_epi16(va0);
151         a0 = (const int8_t*) ((uintptr_t) a0 + k);
152         const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
153         const __m128i vxa1 = _mm_cvtepi8_epi16(va1);
154         a1 = (const int8_t*) ((uintptr_t) a1 + k);
155         const __m128i va2 = _mm_loadl_epi64((const __m128i*) a2);
156         const __m128i vxa2 = _mm_cvtepi8_epi16(va2);
157         a2 = (const int8_t*) ((uintptr_t) a2 + k);
158         const __m128i va3 = _mm_loadl_epi64((const __m128i*) a3);
159         const __m128i vxa3 = _mm_cvtepi8_epi16(va3);
160         a3 = (const int8_t*) ((uintptr_t) a3 + k);
161 
162         const __m128i vb0 = _mm_loadl_epi64((const __m128i*) w);
163         w = (const void*) ((uintptr_t) w + 8);
164         const __m128i vxb0 = _mm_unpacklo_epi8(vb0, _mm_cmpgt_epi8(_mm_setzero_si128(), vb0));
165 
166         vacc0x0123 = _mm_add_epi32(vacc0x0123,
167           _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
168         vacc1x0123 = _mm_add_epi32(vacc1x0123,
169           _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
170         vacc2x0123 = _mm_add_epi32(vacc2x0123,
171           _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
172         vacc3x0123 = _mm_add_epi32(vacc3x0123,
173           _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
174 
175         if (k > 2 * sizeof(int8_t)) {
176           const __m128i vb1 = _mm_loadl_epi64((const __m128i*) w);
177           w = (const void*) ((uintptr_t) w + 8);
178           const __m128i vxb1 = _mm_unpacklo_epi8(vb1, _mm_cmpgt_epi8(_mm_setzero_si128(), vb1));
179 
180           vacc0x0123 = _mm_add_epi32(vacc0x0123,
181             _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
182           vacc1x0123 = _mm_add_epi32(vacc1x0123,
183             _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
184           vacc2x0123 = _mm_add_epi32(vacc2x0123,
185             _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
186           vacc3x0123 = _mm_add_epi32(vacc3x0123,
187             _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
188 
189           if (k > 4 * sizeof(int8_t)) {
190             const __m128i vb2 = _mm_loadl_epi64((const __m128i*) w);
191             w = (const void*) ((uintptr_t) w + 8);
192             const __m128i vxb2 = _mm_unpacklo_epi8(vb2, _mm_cmpgt_epi8(_mm_setzero_si128(), vb2));
193 
194             vacc0x0123 = _mm_add_epi32(vacc0x0123,
195               _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
196             vacc1x0123 = _mm_add_epi32(vacc1x0123,
197               _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
198             vacc2x0123 = _mm_add_epi32(vacc2x0123,
199               _mm_madd_epi16(_mm_shuffle_epi32(vxa2, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
200             vacc3x0123 = _mm_add_epi32(vacc3x0123,
201               _mm_madd_epi16(_mm_shuffle_epi32(vxa3, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
202           }
203         }
204       }
205       p -= 4 * sizeof(void*);
206     } while (p != 0);
207 
208     const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->sse2.multiplier);
209     const __m128i vrounding = _mm_load_si128((const __m128i*) params->sse2.rounding);
210 
211     const __m128i vacc0x1133 = _mm_shuffle_epi32(vacc0x0123, _MM_SHUFFLE(3, 3, 1, 1));
212     const __m128i vacc1x1133 = _mm_shuffle_epi32(vacc1x0123, _MM_SHUFFLE(3, 3, 1, 1));
213     const __m128i vacc2x1133 = _mm_shuffle_epi32(vacc2x0123, _MM_SHUFFLE(3, 3, 1, 1));
214     const __m128i vacc3x1133 = _mm_shuffle_epi32(vacc3x0123, _MM_SHUFFLE(3, 3, 1, 1));
215 
216     const __m128i vprod0x02 = _mm_add_epi64(_mm_mul_epi32(vacc0x0123, vmultiplier), vrounding);
217     const __m128i vprod1x02 = _mm_add_epi64(_mm_mul_epi32(vacc1x0123, vmultiplier), vrounding);
218     const __m128i vprod2x02 = _mm_add_epi64(_mm_mul_epi32(vacc2x0123, vmultiplier), vrounding);
219     const __m128i vprod3x02 = _mm_add_epi64(_mm_mul_epi32(vacc3x0123, vmultiplier), vrounding);
220 
221     const __m128i vprod0x13 = _mm_add_epi64(_mm_mul_epi32(vacc0x1133, vmultiplier), vrounding);
222     const __m128i vprod1x13 = _mm_add_epi64(_mm_mul_epi32(vacc1x1133, vmultiplier), vrounding);
223     const __m128i vprod2x13 = _mm_add_epi64(_mm_mul_epi32(vacc2x1133, vmultiplier), vrounding);
224     const __m128i vprod3x13 = _mm_add_epi64(_mm_mul_epi32(vacc3x1133, vmultiplier), vrounding);
225 
226     const __m128i vq31prod0x02 = _mm_srli_epi64(vprod0x02, 31);
227     const __m128i vq31prod0x13 = _mm_add_epi64(vprod0x13, vprod0x13);
228     const __m128i vq31prod1x02 = _mm_srli_epi64(vprod1x02, 31);
229     const __m128i vq31prod1x13 = _mm_add_epi64(vprod1x13, vprod1x13);
230     const __m128i vq31prod2x02 = _mm_srli_epi64(vprod2x02, 31);
231     const __m128i vq31prod2x13 = _mm_add_epi64(vprod2x13, vprod2x13);
232     const __m128i vq31prod3x02 = _mm_srli_epi64(vprod3x02, 31);
233     const __m128i vq31prod3x13 = _mm_add_epi64(vprod3x13, vprod3x13);
234 
235     const __m128i vq31prod0x0123 = _mm_blend_epi16(vq31prod0x02, vq31prod0x13, 0xCC);
236     const __m128i vq31prod1x0123 = _mm_blend_epi16(vq31prod1x02, vq31prod1x13, 0xCC);
237     const __m128i vq31prod2x0123 = _mm_blend_epi16(vq31prod2x02, vq31prod2x13, 0xCC);
238     const __m128i vq31prod3x0123 = _mm_blend_epi16(vq31prod3x02, vq31prod3x13, 0xCC);
239 
240     const __m128i vremainder_mask = _mm_load_si128((const __m128i*) params->sse2.remainder_mask);
241     const __m128i vrem0x0123 =
242       _mm_add_epi32(_mm_and_si128(vq31prod0x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod0x0123));
243     const __m128i vrem1x0123 =
244       _mm_add_epi32(_mm_and_si128(vq31prod1x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod1x0123));
245     const __m128i vrem2x0123 =
246       _mm_add_epi32(_mm_and_si128(vq31prod2x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod2x0123));
247     const __m128i vrem3x0123 =
248       _mm_add_epi32(_mm_and_si128(vq31prod3x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod3x0123));
249 
250     const __m128i vremainder_threshold = _mm_load_si128((const __m128i*) params->sse2.remainder_threshold);
251     const __m128i vshift = _mm_load_si128((const __m128i*) params->sse2.shift);
252     vacc0x0123 =
253       _mm_sub_epi32(_mm_sra_epi32(vq31prod0x0123, vshift), _mm_cmpgt_epi32(vrem0x0123, vremainder_threshold));
254     vacc1x0123 =
255       _mm_sub_epi32(_mm_sra_epi32(vq31prod1x0123, vshift), _mm_cmpgt_epi32(vrem1x0123, vremainder_threshold));
256     vacc2x0123 =
257       _mm_sub_epi32(_mm_sra_epi32(vq31prod2x0123, vshift), _mm_cmpgt_epi32(vrem2x0123, vremainder_threshold));
258     vacc3x0123 =
259       _mm_sub_epi32(_mm_sra_epi32(vq31prod3x0123, vshift), _mm_cmpgt_epi32(vrem3x0123, vremainder_threshold));
260 
261     const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
262     __m128i vacc01x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc1x0123), voutput_zero_point);
263     __m128i vacc23x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc2x0123, vacc3x0123), voutput_zero_point);
264 
265     const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
266     const __m128i voutput_max = _mm_load_si128((const __m128i*) params->sse2.output_max);
267     vacc01x0123 = _mm_min_epi16(_mm_max_epi16(vacc01x0123, voutput_min), voutput_max);
268     vacc23x0123 = _mm_min_epi16(_mm_max_epi16(vacc23x0123, voutput_min), voutput_max);
269 
270     __m128i vout = _mm_packs_epi16(vacc01x0123, vacc23x0123);
271 
272     if (nc >= 4) {
273       *((uint32_t*) c3) = (uint32_t) _mm_extract_epi32(vout, 3);
274       c3 = (int8_t*) ((uintptr_t) c3 + cn_stride);
275       *((uint32_t*) c2) = (uint32_t) _mm_extract_epi32(vout, 2);
276       c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
277       *((uint32_t*) c1) = (uint32_t) _mm_extract_epi32(vout, 1);
278       c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
279       *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
280       c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
281 
282       a = (const int8_t**restrict) ((uintptr_t) a - ks);
283 
284       nc -= 4;
285     } else {
286       if (nc & 2) {
287         *((uint16_t*) c3) = (uint16_t) _mm_extract_epi16(vout, 6);
288         c3 += 2;
289         *((uint16_t*) c2) = (uint16_t) _mm_extract_epi16(vout, 4);
290         c2 += 2;
291         *((uint16_t*) c1) = (uint16_t) _mm_extract_epi16(vout, 2);
292         c1 += 2;
293         *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0);
294         c0 += 2;
295         vout = _mm_srli_epi32(vout, 16);
296       }
297       if (nc & 1) {
298         *((int8_t*) c3) = (int8_t) _mm_extract_epi8(vout, 12);
299         *((int8_t*) c2) = (int8_t) _mm_extract_epi8(vout, 8);
300         *((int8_t*) c1) = (int8_t) _mm_extract_epi8(vout, 4);
301         *((int8_t*) c0) = (int8_t) _mm_extract_epi8(vout, 0);
302       }
303 
304       nc = 0;
305     }
306   } while (nc != 0);
307 }
308