1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-gemm/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 <emmintrin.h>
13
14 #include <xnnpack/gemm.h>
15 #include <xnnpack/math.h>
16
17
18
xnn_qc8_gemm_minmax_fp32_ukernel_2x4c2__sse2_ld64(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_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_qc8_gemm_minmax_fp32_ukernel_2x4c2__sse2_ld64(
20 size_t mr,
21 size_t nc,
22 size_t kc,
23 const int8_t* restrict a,
24 size_t a_stride,
25 const void* restrict w,
26 int8_t* restrict c,
27 size_t cm_stride,
28 size_t cn_stride,
29 const union xnn_qs8_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
30 {
31 assert(mr != 0);
32 assert(mr <= 2);
33 assert(nc != 0);
34 assert(kc != 0);
35 assert(kc % sizeof(int8_t) == 0);
36 assert(a != NULL);
37 assert(w != NULL);
38 assert(c != NULL);
39
40 kc = round_up_po2(kc, 2);
41 const int8_t* a0 = a;
42 int8_t* c0 = c;
43 const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
44 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
45 if XNN_UNPREDICTABLE(mr != 2) {
46 a1 = a0;
47 c1 = c0;
48 }
49
50 do {
51 __m128i vacc0x0123 = _mm_loadu_si128((const __m128i*) w);
52 __m128i vacc1x0123 = vacc0x0123;
53 w = (const void*) ((const int32_t*) w + 4);
54
55 size_t k = kc;
56 while (k >= 8 * sizeof(int8_t)) {
57 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
58 const __m128i vxa0 = _mm_srai_epi16(_mm_unpacklo_epi8(va0, va0), 8);
59 a0 += 8;
60 const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
61 const __m128i vxa1 = _mm_srai_epi16(_mm_unpacklo_epi8(va1, va1), 8);
62 a1 += 8;
63
64 const __m128i vb0 = _mm_loadl_epi64((const __m128i*) w);
65 const __m128i vxb0 = _mm_srai_epi16(_mm_unpacklo_epi8(vb0, vb0), 8);
66
67 vacc0x0123 = _mm_add_epi32(vacc0x0123,
68 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
69 vacc1x0123 = _mm_add_epi32(vacc1x0123,
70 _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
71 const __m128i vb1 = _mm_loadl_epi64((const __m128i*) ((const int8_t*) w + 8));
72 const __m128i vxb1 = _mm_srai_epi16(_mm_unpacklo_epi8(vb1, vb1), 8);
73
74 vacc0x0123 = _mm_add_epi32(vacc0x0123,
75 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
76 vacc1x0123 = _mm_add_epi32(vacc1x0123,
77 _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
78 const __m128i vb2 = _mm_loadl_epi64((const __m128i*) ((const int8_t*) w + 16));
79 const __m128i vxb2 = _mm_srai_epi16(_mm_unpacklo_epi8(vb2, vb2), 8);
80
81 vacc0x0123 = _mm_add_epi32(vacc0x0123,
82 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
83 vacc1x0123 = _mm_add_epi32(vacc1x0123,
84 _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
85 const __m128i vb3 = _mm_loadl_epi64((const __m128i*) ((const int8_t*) w + 24));
86 const __m128i vxb3 = _mm_srai_epi16(_mm_unpacklo_epi8(vb3, vb3), 8);
87
88 vacc0x0123 = _mm_add_epi32(vacc0x0123,
89 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
90 vacc1x0123 = _mm_add_epi32(vacc1x0123,
91 _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
92
93 w = (const void*) ((const int8_t*) w + 32);
94 k -= 8 * sizeof(int8_t);
95 }
96 if (k != 0) {
97 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
98 const __m128i vxa0 = _mm_srai_epi16(_mm_unpacklo_epi8(va0, va0), 8);
99 a0 = (const int8_t*) ((uintptr_t) a0 + k);
100 const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
101 const __m128i vxa1 = _mm_srai_epi16(_mm_unpacklo_epi8(va1, va1), 8);
102 a1 = (const int8_t*) ((uintptr_t) a1 + k);
103
104 const __m128i vb0 = _mm_loadl_epi64((const __m128i*) w);
105 const __m128i vxb0 = _mm_srai_epi16(_mm_unpacklo_epi8(vb0, vb0), 8);
106 w = (const void*) ((const int8_t*) w + 8);
107
108 vacc0x0123 = _mm_add_epi32(vacc0x0123,
109 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
110 vacc1x0123 = _mm_add_epi32(vacc1x0123,
111 _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
112
113 if (k > 2 * sizeof(int8_t)) {
114 const __m128i vb1 = _mm_loadl_epi64((const __m128i*) w);
115 const __m128i vxb1 = _mm_srai_epi16(_mm_unpacklo_epi8(vb1, vb1), 8);
116 w = (const void*) ((const int8_t*) w + 8);
117
118 vacc0x0123 = _mm_add_epi32(vacc0x0123,
119 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
120 vacc1x0123 = _mm_add_epi32(vacc1x0123,
121 _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
122
123 if (k > 4 * sizeof(int8_t)) {
124 const __m128i vb2 = _mm_loadl_epi64((const __m128i*) w);
125 const __m128i vxb2 = _mm_srai_epi16(_mm_unpacklo_epi8(vb2, vb2), 8);
126 w = (const void*) ((const int8_t*) w + 8);
127
128 vacc0x0123 = _mm_add_epi32(vacc0x0123,
129 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
130 vacc1x0123 = _mm_add_epi32(vacc1x0123,
131 _mm_madd_epi16(_mm_shuffle_epi32(vxa1, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
132 }
133 }
134 }
135
136 __m128 vscaled0x0123 = _mm_cvtepi32_ps(vacc0x0123);
137 __m128 vscaled1x0123 = _mm_cvtepi32_ps(vacc1x0123);
138
139 const __m128 vscale0123 = _mm_loadu_ps((const float*) w);
140 w = (const void*) ((const float*) w + 4);
141 vscaled0x0123 = _mm_mul_ps(vscaled0x0123, vscale0123);
142 vscaled1x0123 = _mm_mul_ps(vscaled1x0123, vscale0123);
143
144 const __m128 voutput_max_less_zero_point = _mm_load_ps(params->sse2.output_max_less_zero_point);
145 vscaled0x0123 = _mm_min_ps(vscaled0x0123, voutput_max_less_zero_point);
146 vscaled1x0123 = _mm_min_ps(vscaled1x0123, voutput_max_less_zero_point);
147
148 vacc0x0123 = _mm_cvtps_epi32(vscaled0x0123);
149 vacc1x0123 = _mm_cvtps_epi32(vscaled1x0123);
150
151 const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
152 __m128i vacc01x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc1x0123), voutput_zero_point);
153
154 const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
155 vacc01x0123 = _mm_max_epi16(vacc01x0123, voutput_min);
156
157 __m128i vout = _mm_packs_epi16(vacc01x0123, vacc01x0123);
158
159
160 if (nc >= 4) {
161 *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
162 vout = _mm_srli_si128(vout, 4);
163 *((uint32_t*) c1) = (uint32_t) _mm_cvtsi128_si32(vout);
164
165 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
166 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
167
168 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
169 a1 = (const int8_t*) ((uintptr_t) a1 - kc);
170
171 nc -= 4;
172 } else {
173 if (nc & 2) {
174 *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0);
175 c0 += 2;
176 *((uint16_t*) c1) = (uint16_t) _mm_extract_epi16(vout, 2);
177 c1 += 2;
178 vout = _mm_srli_epi32(vout, 16);
179 }
180 if (nc & 1) {
181 *c0 = (int8_t) _mm_cvtsi128_si32(vout);
182 *c1 = (int8_t) _mm_extract_epi16(vout, 2);
183 }
184
185 nc = 0;
186 }
187 } while (nc != 0);
188 }
189