1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-igemm/MRx8c8-avx2.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 <immintrin.h>
13
14 #include <xnnpack/igemm.h>
15 #include <xnnpack/intrinsics-polyfill.h>
16 #include <xnnpack/math.h>
17
18
xnn_qs8_igemm_minmax_ukernel_1x8c8__avx2(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)])19 void xnn_qs8_igemm_minmax_ukernel_1x8c8__avx2(
20 size_t mr,
21 size_t nc,
22 size_t kc,
23 size_t ks,
24 const int8_t** restrict a,
25 const void* restrict w,
26 int8_t* restrict c,
27 size_t cm_stride,
28 size_t cn_stride,
29 size_t a_offset,
30 const int8_t* zero,
31 const union xnn_qs8_gemm_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
32 {
33 assert(mr != 0);
34 assert(mr <= 1);
35 assert(nc != 0);
36 assert(kc != 0);
37 assert(ks != 0);
38 assert(ks % (1 * sizeof(void*)) == 0);
39 assert(a_offset % sizeof(int8_t) == 0);
40 assert(a != NULL);
41 assert(w != NULL);
42 assert(c != NULL);
43
44 kc = round_up_po2(kc, 8);
45 int8_t* c0 = c;
46
47 do {
48 const __m128i vbias0x0 = _mm_loadu_si32(w);
49 const __m128i vbias0x1 = _mm_loadu_si32((const void*) ((uintptr_t) w + sizeof(int32_t)));
50 __m256i vacc0x01 = _mm256_inserti128_si256(_mm256_castsi128_si256(vbias0x0), vbias0x1, 1);
51 const __m128i vbias0x2 = _mm_loadu_si32((const void*) ((uintptr_t) w + 2 * sizeof(int32_t)));
52 const __m128i vbias0x3 = _mm_loadu_si32((const void*) ((uintptr_t) w + 3 * sizeof(int32_t)));
53 __m256i vacc0x23 = _mm256_inserti128_si256(_mm256_castsi128_si256(vbias0x2), vbias0x3, 1);
54 const __m128i vbias0x4 = _mm_loadu_si32((const void*) ((uintptr_t) w + 4 * sizeof(int32_t)));
55 const __m128i vbias0x5 = _mm_loadu_si32((const void*) ((uintptr_t) w + 5 * sizeof(int32_t)));
56 __m256i vacc0x45 = _mm256_inserti128_si256(_mm256_castsi128_si256(vbias0x4), vbias0x5, 1);
57 const __m128i vbias0x6 = _mm_loadu_si32((const void*) ((uintptr_t) w + 6 * sizeof(int32_t)));
58 const __m128i vbias0x7 = _mm_loadu_si32((const void*) ((uintptr_t) w + 7 * sizeof(int32_t)));
59 __m256i vacc0x67 = _mm256_inserti128_si256(_mm256_castsi128_si256(vbias0x6), vbias0x7, 1);
60 w = (const void*) ((uintptr_t) w + 8 * sizeof(int32_t));
61
62 size_t p = ks;
63 do {
64 const int8_t* restrict a0 = a[0];
65 if XNN_UNPREDICTABLE(a0 != zero) {
66 a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
67 }
68 a += 1;
69
70 size_t k = 0;
71 while (k < kc) {
72 const __m128i va0 = _mm_broadcastq_epi64(_mm_loadl_epi64((const __m128i*) a0));
73 const __m256i vxa0 = _mm256_cvtepi8_epi16(va0);
74 a0 += 8;
75
76 const __m128i vb01 = _mm_load_si128((const __m128i*) w);
77 const __m256i vxb01 = _mm256_cvtepi8_epi16(vb01);
78
79 vacc0x01 = _mm256_add_epi32(vacc0x01, _mm256_madd_epi16(vxa0, vxb01));
80 const __m128i vb23 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 16 * sizeof(int8_t)));
81 const __m256i vxb23 = _mm256_cvtepi8_epi16(vb23);
82
83 vacc0x23 = _mm256_add_epi32(vacc0x23, _mm256_madd_epi16(vxa0, vxb23));
84 const __m128i vb45 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 32 * sizeof(int8_t)));
85 const __m256i vxb45 = _mm256_cvtepi8_epi16(vb45);
86
87 vacc0x45 = _mm256_add_epi32(vacc0x45, _mm256_madd_epi16(vxa0, vxb45));
88 const __m128i vb67 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 48 * sizeof(int8_t)));
89 const __m256i vxb67 = _mm256_cvtepi8_epi16(vb67);
90
91 vacc0x67 = _mm256_add_epi32(vacc0x67, _mm256_madd_epi16(vxa0, vxb67));
92
93 w = (const void*) ((uintptr_t) w + 64 * sizeof(int8_t));
94 k += 8 * sizeof(int8_t);
95 }
96 p -= 1 * sizeof(void*);
97 } while (p != 0);
98
99 const __m256i vacc0x0213 = _mm256_hadd_epi32(vacc0x01, vacc0x23);
100 const __m256i vacc0x4657 = _mm256_hadd_epi32(vacc0x45, vacc0x67);
101
102 const __m256i vacc0x02461357 = _mm256_hadd_epi32(vacc0x0213, vacc0x4657);
103
104 const __m256i vpermute_mask = _mm256_set_epi32(7, 3, 6, 2, 5, 1, 4, 0);
105 __m256i vacc0x01234567 = _mm256_permutevar8x32_epi32(vacc0x02461357, vpermute_mask);
106
107 const __m256i vmultiplier = _mm256_broadcastsi128_si256(_mm_load_si128((const __m128i*) params->sse2.multiplier));
108 const __m256i vrounding = _mm256_broadcastsi128_si256(_mm_load_si128((const __m128i*) params->sse2.rounding));
109
110 const __m256i vacc0x11335577 = _mm256_shuffle_epi32(vacc0x01234567, _MM_SHUFFLE(3, 3, 1, 1));
111
112 const __m256i vprod0x0246 = _mm256_add_epi64(_mm256_mul_epi32(vacc0x01234567, vmultiplier), vrounding);
113
114 const __m256i vprod0x1357 = _mm256_add_epi64(_mm256_mul_epi32(vacc0x11335577, vmultiplier), vrounding);
115
116 const __m256i vq31prod0x0246 = _mm256_srli_epi64(vprod0x0246, 31);
117 const __m256i vq31prod0x1357 = _mm256_add_epi64(vprod0x1357, vprod0x1357);
118
119 const __m256i vq31prod0x01234567 = _mm256_blend_epi16(vq31prod0x0246, vq31prod0x1357, 0xCC);
120
121 const __m256i vremainder_mask = _mm256_broadcastsi128_si256(_mm_load_si128((const __m128i*) params->sse2.remainder_mask));
122 const __m256i vrem0x01234567 =
123 _mm256_add_epi32(_mm256_and_si256(vq31prod0x01234567, vremainder_mask), _mm256_cmpgt_epi32(_mm256_setzero_si256(), vq31prod0x01234567));
124
125 const __m256i vremainder_threshold = _mm256_broadcastsi128_si256(_mm_load_si128((const __m128i*) params->sse2.remainder_threshold));
126 const __m128i vshift = _mm_load_si128((const __m128i*) params->sse2.shift);
127 vacc0x01234567 =
128 _mm256_sub_epi32(_mm256_sra_epi32(vq31prod0x01234567, vshift), _mm256_cmpgt_epi32(vrem0x01234567, vremainder_threshold));
129
130 const __m256i voutput_zero_point = _mm256_broadcastsi128_si256(_mm_load_si128((const __m128i*) params->sse2.output_zero_point));
131 __m256i vacc00x01234567 = _mm256_adds_epi16(_mm256_packs_epi32(vacc0x01234567, vacc0x01234567), voutput_zero_point);
132
133 vacc00x01234567 = _mm256_permute4x64_epi64(vacc00x01234567, _MM_SHUFFLE(3, 1, 2, 0));
134
135 const __m256i voutput_min = _mm256_broadcastsi128_si256(_mm_load_si128((const __m128i*) params->sse2.output_min));
136 const __m256i voutput_max = _mm256_broadcastsi128_si256(_mm_load_si128((const __m128i*) params->sse2.output_max));
137 vacc00x01234567 = _mm256_min_epi16(_mm256_max_epi16(vacc00x01234567, voutput_min), voutput_max);
138
139 __m256i vout = _mm256_packs_epi16(vacc00x01234567, vacc00x01234567);
140 __m128i vout_lo = _mm256_castsi256_si128(vout);
141 __m128i vout_hi = _mm256_extracti128_si256(vout, 1);
142
143 if (nc >= 8) {
144 _mm_storel_epi64((__m128i*) c0, vout_lo);
145
146 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
147
148 a = (const int8_t**restrict) ((uintptr_t) a - ks);
149
150 nc -= 8;
151 } else {
152 if (nc & 4) {
153 _mm_storeu_si32(c0, vout_lo);
154
155 c0 += 4;
156
157 vout_lo = _mm_srli_epi64(vout_lo, 32);
158 vout_hi = _mm_srli_epi64(vout_hi, 32);
159 }
160 if (nc & 2) {
161 *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout_lo, 0);
162
163 c0 += 2;
164
165 vout_lo = _mm_srli_epi32(vout_lo, 16);
166 vout_hi = _mm_srli_epi32(vout_hi, 16);
167 }
168 if (nc & 1) {
169 *c0 = (int8_t) _mm_extract_epi8(vout_lo, 0);
170 }
171
172 nc = 0;
173 }
174 } while (nc != 0);
175 }
176