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_1x4c2__sse41_ld64(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_1x4c2__sse41_ld64(
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 <= 1);
34 assert(nc != 0);
35 assert(kc != 0);
36 assert(ks != 0);
37 assert(ks % (1 * 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
46 do {
47 __m128i vacc0x0123 = _mm_loadu_si128((const __m128i*) w);
48 w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
49
50 size_t p = ks;
51 do {
52 const int8_t* restrict a0 = a[0];
53 if XNN_UNPREDICTABLE(a0 != zero) {
54 a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
55 }
56 a += 1;
57
58 size_t k = kc;
59 while (k >= 8 * sizeof(int8_t)) {
60 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
61 const __m128i vxa0 = _mm_cvtepi8_epi16(va0);
62 a0 += 8;
63
64 const __m128i vb0 = _mm_loadl_epi64((const __m128i*) w);
65 const __m128i vxb0 = _mm_cvtepi8_epi16(vb0);
66
67 vacc0x0123 = _mm_add_epi32(vacc0x0123,
68 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
69 const __m128i vb1 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 8));
70 const __m128i vxb1 = _mm_cvtepi8_epi16(vb1);
71
72 vacc0x0123 = _mm_add_epi32(vacc0x0123,
73 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
74 const __m128i vb2 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 16));
75 const __m128i vxb2 = _mm_cvtepi8_epi16(vb2);
76
77 vacc0x0123 = _mm_add_epi32(vacc0x0123,
78 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
79 const __m128i vb3 = _mm_loadl_epi64((const __m128i*) ((uintptr_t) w + 24));
80 const __m128i vxb3 = _mm_cvtepi8_epi16(vb3);
81
82 vacc0x0123 = _mm_add_epi32(vacc0x0123,
83 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
84
85 w = (const void*) ((uintptr_t) w + 32);
86 k -= 8 * sizeof(int8_t);
87 }
88 if (k != 0) {
89 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
90 const __m128i vxa0 = _mm_cvtepi8_epi16(va0);
91 a0 = (const int8_t*) ((uintptr_t) a0 + k);
92
93 const __m128i vb0 = _mm_loadl_epi64((const __m128i*) w);
94 w = (const void*) ((uintptr_t) w + 8);
95 const __m128i vxb0 = _mm_unpacklo_epi8(vb0, _mm_cmpgt_epi8(_mm_setzero_si128(), vb0));
96
97 vacc0x0123 = _mm_add_epi32(vacc0x0123,
98 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
99
100 if (k > 2 * sizeof(int8_t)) {
101 const __m128i vb1 = _mm_loadl_epi64((const __m128i*) w);
102 w = (const void*) ((uintptr_t) w + 8);
103 const __m128i vxb1 = _mm_unpacklo_epi8(vb1, _mm_cmpgt_epi8(_mm_setzero_si128(), vb1));
104
105 vacc0x0123 = _mm_add_epi32(vacc0x0123,
106 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
107
108 if (k > 4 * sizeof(int8_t)) {
109 const __m128i vb2 = _mm_loadl_epi64((const __m128i*) w);
110 w = (const void*) ((uintptr_t) w + 8);
111 const __m128i vxb2 = _mm_unpacklo_epi8(vb2, _mm_cmpgt_epi8(_mm_setzero_si128(), vb2));
112
113 vacc0x0123 = _mm_add_epi32(vacc0x0123,
114 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
115 }
116 }
117 }
118 p -= 1 * sizeof(void*);
119 } while (p != 0);
120
121 const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->sse2.multiplier);
122 const __m128i vrounding = _mm_load_si128((const __m128i*) params->sse2.rounding);
123
124 const __m128i vacc0x1133 = _mm_shuffle_epi32(vacc0x0123, _MM_SHUFFLE(3, 3, 1, 1));
125
126 const __m128i vprod0x02 = _mm_add_epi64(_mm_mul_epi32(vacc0x0123, vmultiplier), vrounding);
127
128 const __m128i vprod0x13 = _mm_add_epi64(_mm_mul_epi32(vacc0x1133, vmultiplier), vrounding);
129
130 const __m128i vq31prod0x02 = _mm_srli_epi64(vprod0x02, 31);
131 const __m128i vq31prod0x13 = _mm_add_epi64(vprod0x13, vprod0x13);
132
133 const __m128i vq31prod0x0123 = _mm_blend_epi16(vq31prod0x02, vq31prod0x13, 0xCC);
134
135 const __m128i vremainder_mask = _mm_load_si128((const __m128i*) params->sse2.remainder_mask);
136 const __m128i vrem0x0123 =
137 _mm_add_epi32(_mm_and_si128(vq31prod0x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod0x0123));
138
139 const __m128i vremainder_threshold = _mm_load_si128((const __m128i*) params->sse2.remainder_threshold);
140 const __m128i vshift = _mm_load_si128((const __m128i*) params->sse2.shift);
141 vacc0x0123 =
142 _mm_sub_epi32(_mm_sra_epi32(vq31prod0x0123, vshift), _mm_cmpgt_epi32(vrem0x0123, vremainder_threshold));
143
144 const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
145 __m128i vacc00x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc0x0123), voutput_zero_point);
146
147 const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
148 const __m128i voutput_max = _mm_load_si128((const __m128i*) params->sse2.output_max);
149 vacc00x0123 = _mm_min_epi16(_mm_max_epi16(vacc00x0123, voutput_min), voutput_max);
150
151 __m128i vout = _mm_packs_epi16(vacc00x0123, vacc00x0123);
152
153 if (nc >= 4) {
154 *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
155 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
156
157 a = (const int8_t**restrict) ((uintptr_t) a - ks);
158
159 nc -= 4;
160 } else {
161 if (nc & 2) {
162 *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0);
163 c0 += 2;
164 vout = _mm_srli_epi32(vout, 16);
165 }
166 if (nc & 1) {
167 *((int8_t*) c0) = (int8_t) _mm_extract_epi8(vout, 0);
168 }
169
170 nc = 0;
171 }
172 } while (nc != 0);
173 }
174