1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-gemm/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 #ifdef __GNUC__
13 #include <x86intrin.h>
14 #else
15 #include <immintrin.h>
16 #include <ammintrin.h>
17 #endif
18
19 #include <xnnpack/gemm.h>
20 #include <xnnpack/math.h>
21
22
xnn_qs8_gemm_xw_minmax_ukernel_2x4c8__xop(size_t mr,size_t nc,size_t kc,const int8_t * restrict a,size_t a_stride,const void * restrict w,int8_t * restrict c,size_t cm_stride,size_t cn_stride,const union xnn_qs8_gemm_xw_params params[restrict XNN_MIN_ELEMENTS (1)])23 void xnn_qs8_gemm_xw_minmax_ukernel_2x4c8__xop(
24 size_t mr,
25 size_t nc,
26 size_t kc,
27 const int8_t* restrict a,
28 size_t a_stride,
29 const void* restrict w,
30 int8_t* restrict c,
31 size_t cm_stride,
32 size_t cn_stride,
33 const union xnn_qs8_gemm_xw_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
34 {
35 assert(mr != 0);
36 assert(mr <= 2);
37 assert(nc != 0);
38 assert(kc != 0);
39 assert(kc % 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 const int8_t* a0 = a;
46 int8_t* c0 = c;
47 const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
48 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
49 if XNN_UNPREDICTABLE(mr != 2) {
50 a1 = a0;
51 c1 = c0;
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 w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
64
65 size_t k = 0;
66 while (k < kc) {
67 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
68 const __m128i vxa0 = _mm_cvtepi8_epi16(va0);
69 a0 += 8;
70 const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
71 const __m128i vxa1 = _mm_cvtepi8_epi16(va1);
72 a1 += 8;
73
74 const __m128i vxb0 = _mm_load_si128((const __m128i*) w);
75
76 vacc0x0 = _mm_maddd_epi16(vxa0, vxb0, vacc0x0);
77 vacc1x0 = _mm_maddd_epi16(vxa1, vxb0, vacc1x0);
78 const __m128i vxb1 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 8 * sizeof(int16_t)));
79
80 vacc0x1 = _mm_maddd_epi16(vxa0, vxb1, vacc0x1);
81 vacc1x1 = _mm_maddd_epi16(vxa1, vxb1, vacc1x1);
82 const __m128i vxb2 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 16 * sizeof(int16_t)));
83
84 vacc0x2 = _mm_maddd_epi16(vxa0, vxb2, vacc0x2);
85 vacc1x2 = _mm_maddd_epi16(vxa1, vxb2, vacc1x2);
86 const __m128i vxb3 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 24 * sizeof(int16_t)));
87
88 vacc0x3 = _mm_maddd_epi16(vxa0, vxb3, vacc0x3);
89 vacc1x3 = _mm_maddd_epi16(vxa1, vxb3, vacc1x3);
90
91 w = (const void*) ((uintptr_t) w + 32 * sizeof(int16_t));
92 k += 8 * sizeof(int8_t);
93 }
94
95 const __m128i vacc0x01 = _mm_hadd_epi32(vacc0x0, vacc0x1);
96 const __m128i vacc0x23 = _mm_hadd_epi32(vacc0x2, vacc0x3);
97 const __m128i vacc1x01 = _mm_hadd_epi32(vacc1x0, vacc1x1);
98 const __m128i vacc1x23 = _mm_hadd_epi32(vacc1x2, vacc1x3);
99
100 __m128i vacc0x0123 = _mm_hadd_epi32(vacc0x01, vacc0x23);
101 __m128i vacc1x0123 = _mm_hadd_epi32(vacc1x01, vacc1x23);
102
103 const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->sse2.multiplier);
104 const __m128i vrounding = _mm_load_si128((const __m128i*) params->sse2.rounding);
105
106 const __m128i vacc0x1133 = _mm_shuffle_epi32(vacc0x0123, _MM_SHUFFLE(3, 3, 1, 1));
107 const __m128i vacc1x1133 = _mm_shuffle_epi32(vacc1x0123, _MM_SHUFFLE(3, 3, 1, 1));
108
109 const __m128i vprod0x02 = _mm_add_epi64(_mm_mul_epi32(vacc0x0123, vmultiplier), vrounding);
110 const __m128i vprod1x02 = _mm_add_epi64(_mm_mul_epi32(vacc1x0123, vmultiplier), vrounding);
111
112 const __m128i vprod0x13 = _mm_add_epi64(_mm_mul_epi32(vacc0x1133, vmultiplier), vrounding);
113 const __m128i vprod1x13 = _mm_add_epi64(_mm_mul_epi32(vacc1x1133, vmultiplier), vrounding);
114
115 const __m128i vq31prod0x02 = _mm_srli_epi64(vprod0x02, 31);
116 const __m128i vq31prod0x13 = _mm_add_epi64(vprod0x13, vprod0x13);
117 const __m128i vq31prod1x02 = _mm_srli_epi64(vprod1x02, 31);
118 const __m128i vq31prod1x13 = _mm_add_epi64(vprod1x13, vprod1x13);
119
120 const __m128i vq31prod0x0123 = _mm_blend_epi16(vq31prod0x02, vq31prod0x13, 0xCC);
121 const __m128i vq31prod1x0123 = _mm_blend_epi16(vq31prod1x02, vq31prod1x13, 0xCC);
122
123 const __m128i vremainder_mask = _mm_load_si128((const __m128i*) params->sse2.remainder_mask);
124 const __m128i vrem0x0123 =
125 _mm_add_epi32(_mm_and_si128(vq31prod0x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod0x0123));
126 const __m128i vrem1x0123 =
127 _mm_add_epi32(_mm_and_si128(vq31prod1x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod1x0123));
128
129 const __m128i vremainder_threshold = _mm_load_si128((const __m128i*) params->sse2.remainder_threshold);
130 const __m128i vshift = _mm_load_si128((const __m128i*) params->sse2.shift);
131 vacc0x0123 =
132 _mm_sub_epi32(_mm_sra_epi32(vq31prod0x0123, vshift), _mm_cmpgt_epi32(vrem0x0123, vremainder_threshold));
133 vacc1x0123 =
134 _mm_sub_epi32(_mm_sra_epi32(vq31prod1x0123, vshift), _mm_cmpgt_epi32(vrem1x0123, vremainder_threshold));
135
136 const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
137 __m128i vacc01x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc1x0123), voutput_zero_point);
138
139 const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
140 const __m128i voutput_max = _mm_load_si128((const __m128i*) params->sse2.output_max);
141 vacc01x0123 = _mm_min_epi16(_mm_max_epi16(vacc01x0123, voutput_min), voutput_max);
142
143 __m128i vout = _mm_packs_epi16(vacc01x0123, vacc01x0123);
144
145 if (nc >= 4) {
146 *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
147 *((uint32_t*) c1) = (uint32_t) _mm_extract_epi32(vout, 1);
148
149 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
150 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
151
152 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
153 a1 = (const int8_t*) ((uintptr_t) a1 - kc);
154
155 nc -= 4;
156 } else {
157 if (nc & 2) {
158 *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0);
159 c0 += 2;
160 *((uint16_t*) c1) = (uint16_t) _mm_extract_epi16(vout, 2);
161 c1 += 2;
162 vout = _mm_srli_epi32(vout, 16);
163 }
164 if (nc & 1) {
165 *((int8_t*) c0) = (int8_t) _mm_extract_epi8(vout, 0);
166 *((int8_t*) c1) = (int8_t) _mm_extract_epi8(vout, 4);
167 }
168
169 nc = 0;
170 }
171 } while (nc != 0);
172 }
173