1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-igemm/MRx4c8-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_3x4c8__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_3x4c8__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 <= 3);
34 assert(nc != 0);
35 assert(kc != 0);
36 assert(ks != 0);
37 assert(ks % (3 * 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, 8);
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
54 do {
55 __m128i vacc0x0 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[0]);
56 __m128i vacc0x1 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[1]);
57 __m128i vacc0x2 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[2]);
58 __m128i vacc0x3 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[3]);
59 __m128i vacc1x0 = vacc0x0;
60 __m128i vacc1x1 = vacc0x1;
61 __m128i vacc1x2 = vacc0x2;
62 __m128i vacc1x3 = vacc0x3;
63 __m128i vacc2x0 = vacc0x0;
64 __m128i vacc2x1 = vacc0x1;
65 __m128i vacc2x2 = vacc0x2;
66 __m128i vacc2x3 = vacc0x3;
67 w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
68
69 size_t p = ks;
70 do {
71 const int8_t* restrict a0 = a[0];
72 if XNN_UNPREDICTABLE(a0 != zero) {
73 a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
74 }
75 const int8_t* restrict a1 = a[1];
76 if XNN_UNPREDICTABLE(a1 != zero) {
77 a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);
78 }
79 const int8_t* restrict a2 = a[2];
80 if XNN_UNPREDICTABLE(a2 != zero) {
81 a2 = (const int8_t*) ((uintptr_t) a2 + a_offset);
82 }
83 a += 3;
84
85 size_t k = 0;
86 while (k < kc) {
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
97 const __m128i vb01 = _mm_load_si128((const __m128i*) w);
98 const __m128i vsb01 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb01);
99 const __m128i vxb0 = _mm_unpacklo_epi8(vb01, vsb01);
100 const __m128i vxb1 = _mm_unpackhi_epi8(vb01, vsb01);
101
102 vacc0x0 = _mm_add_epi32(vacc0x0, _mm_madd_epi16(vxa0, vxb0));
103 vacc0x1 = _mm_add_epi32(vacc0x1, _mm_madd_epi16(vxa0, vxb1));
104 vacc1x0 = _mm_add_epi32(vacc1x0, _mm_madd_epi16(vxa1, vxb0));
105 vacc1x1 = _mm_add_epi32(vacc1x1, _mm_madd_epi16(vxa1, vxb1));
106 vacc2x0 = _mm_add_epi32(vacc2x0, _mm_madd_epi16(vxa2, vxb0));
107 vacc2x1 = _mm_add_epi32(vacc2x1, _mm_madd_epi16(vxa2, vxb1));
108 const __m128i vb23 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 16));
109 const __m128i vsb23 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb23);
110 const __m128i vxb2 = _mm_unpacklo_epi8(vb23, vsb23);
111 const __m128i vxb3 = _mm_unpackhi_epi8(vb23, vsb23);
112
113 vacc0x2 = _mm_add_epi32(vacc0x2, _mm_madd_epi16(vxa0, vxb2));
114 vacc0x3 = _mm_add_epi32(vacc0x3, _mm_madd_epi16(vxa0, vxb3));
115 vacc1x2 = _mm_add_epi32(vacc1x2, _mm_madd_epi16(vxa1, vxb2));
116 vacc1x3 = _mm_add_epi32(vacc1x3, _mm_madd_epi16(vxa1, vxb3));
117 vacc2x2 = _mm_add_epi32(vacc2x2, _mm_madd_epi16(vxa2, vxb2));
118 vacc2x3 = _mm_add_epi32(vacc2x3, _mm_madd_epi16(vxa2, vxb3));
119
120 w = (const void*) ((uintptr_t) w + 32);
121 k += 8 * sizeof(int8_t);
122 }
123 p -= 3 * sizeof(void*);
124 } while (p != 0);
125
126 const __m128i vacc0x01 = _mm_hadd_epi32(vacc0x0, vacc0x1);
127 const __m128i vacc0x23 = _mm_hadd_epi32(vacc0x2, vacc0x3);
128 const __m128i vacc1x01 = _mm_hadd_epi32(vacc1x0, vacc1x1);
129 const __m128i vacc1x23 = _mm_hadd_epi32(vacc1x2, vacc1x3);
130 const __m128i vacc2x01 = _mm_hadd_epi32(vacc2x0, vacc2x1);
131 const __m128i vacc2x23 = _mm_hadd_epi32(vacc2x2, vacc2x3);
132
133 __m128i vacc0x0123 = _mm_hadd_epi32(vacc0x01, vacc0x23);
134 __m128i vacc1x0123 = _mm_hadd_epi32(vacc1x01, vacc1x23);
135 __m128i vacc2x0123 = _mm_hadd_epi32(vacc2x01, vacc2x23);
136
137 const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->sse2.multiplier);
138 const __m128i vrounding = _mm_load_si128((const __m128i*) params->sse2.rounding);
139
140 const __m128i vacc0x1133 = _mm_shuffle_epi32(vacc0x0123, _MM_SHUFFLE(3, 3, 1, 1));
141 const __m128i vacc1x1133 = _mm_shuffle_epi32(vacc1x0123, _MM_SHUFFLE(3, 3, 1, 1));
142 const __m128i vacc2x1133 = _mm_shuffle_epi32(vacc2x0123, _MM_SHUFFLE(3, 3, 1, 1));
143
144 const __m128i vprod0x02 = _mm_add_epi64(_mm_mul_epi32(vacc0x0123, vmultiplier), vrounding);
145 const __m128i vprod1x02 = _mm_add_epi64(_mm_mul_epi32(vacc1x0123, vmultiplier), vrounding);
146 const __m128i vprod2x02 = _mm_add_epi64(_mm_mul_epi32(vacc2x0123, vmultiplier), vrounding);
147
148 const __m128i vprod0x13 = _mm_add_epi64(_mm_mul_epi32(vacc0x1133, vmultiplier), vrounding);
149 const __m128i vprod1x13 = _mm_add_epi64(_mm_mul_epi32(vacc1x1133, vmultiplier), vrounding);
150 const __m128i vprod2x13 = _mm_add_epi64(_mm_mul_epi32(vacc2x1133, vmultiplier), vrounding);
151
152 const __m128i vq31prod0x02 = _mm_srli_epi64(vprod0x02, 31);
153 const __m128i vq31prod0x13 = _mm_add_epi64(vprod0x13, vprod0x13);
154 const __m128i vq31prod1x02 = _mm_srli_epi64(vprod1x02, 31);
155 const __m128i vq31prod1x13 = _mm_add_epi64(vprod1x13, vprod1x13);
156 const __m128i vq31prod2x02 = _mm_srli_epi64(vprod2x02, 31);
157 const __m128i vq31prod2x13 = _mm_add_epi64(vprod2x13, vprod2x13);
158
159 const __m128i vq31prod0x0123 = _mm_blend_epi16(vq31prod0x02, vq31prod0x13, 0xCC);
160 const __m128i vq31prod1x0123 = _mm_blend_epi16(vq31prod1x02, vq31prod1x13, 0xCC);
161 const __m128i vq31prod2x0123 = _mm_blend_epi16(vq31prod2x02, vq31prod2x13, 0xCC);
162
163 const __m128i vremainder_mask = _mm_load_si128((const __m128i*) params->sse2.remainder_mask);
164 const __m128i vrem0x0123 =
165 _mm_add_epi32(_mm_and_si128(vq31prod0x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod0x0123));
166 const __m128i vrem1x0123 =
167 _mm_add_epi32(_mm_and_si128(vq31prod1x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod1x0123));
168 const __m128i vrem2x0123 =
169 _mm_add_epi32(_mm_and_si128(vq31prod2x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod2x0123));
170
171 const __m128i vremainder_threshold = _mm_load_si128((const __m128i*) params->sse2.remainder_threshold);
172 const __m128i vshift = _mm_load_si128((const __m128i*) params->sse2.shift);
173 vacc0x0123 =
174 _mm_sub_epi32(_mm_sra_epi32(vq31prod0x0123, vshift), _mm_cmpgt_epi32(vrem0x0123, vremainder_threshold));
175 vacc1x0123 =
176 _mm_sub_epi32(_mm_sra_epi32(vq31prod1x0123, vshift), _mm_cmpgt_epi32(vrem1x0123, vremainder_threshold));
177 vacc2x0123 =
178 _mm_sub_epi32(_mm_sra_epi32(vq31prod2x0123, vshift), _mm_cmpgt_epi32(vrem2x0123, vremainder_threshold));
179
180 const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
181 __m128i vacc01x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc1x0123), voutput_zero_point);
182 __m128i vacc22x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc2x0123, vacc2x0123), voutput_zero_point);
183
184 const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
185 const __m128i voutput_max = _mm_load_si128((const __m128i*) params->sse2.output_max);
186 vacc01x0123 = _mm_min_epi16(_mm_max_epi16(vacc01x0123, voutput_min), voutput_max);
187 vacc22x0123 = _mm_min_epi16(_mm_max_epi16(vacc22x0123, voutput_min), voutput_max);
188
189 __m128i vout = _mm_packs_epi16(vacc01x0123, vacc22x0123);
190
191 if (nc >= 4) {
192 *((uint32_t*) c2) = (uint32_t) _mm_extract_epi32(vout, 2);
193 c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
194 *((uint32_t*) c1) = (uint32_t) _mm_extract_epi32(vout, 1);
195 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
196 *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
197 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
198
199 a = (const int8_t**restrict) ((uintptr_t) a - ks);
200
201 nc -= 4;
202 } else {
203 if (nc & 2) {
204 *((uint16_t*) c2) = (uint16_t) _mm_extract_epi16(vout, 4);
205 c2 += 2;
206 *((uint16_t*) c1) = (uint16_t) _mm_extract_epi16(vout, 2);
207 c1 += 2;
208 *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0);
209 c0 += 2;
210 vout = _mm_srli_epi32(vout, 16);
211 }
212 if (nc & 1) {
213 *((int8_t*) c2) = (int8_t) _mm_extract_epi8(vout, 8);
214 *((int8_t*) c1) = (int8_t) _mm_extract_epi8(vout, 4);
215 *((int8_t*) c0) = (int8_t) _mm_extract_epi8(vout, 0);
216 }
217
218 nc = 0;
219 }
220 } while (nc != 0);
221 }
222