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
xnn_qs8_gemm_xw_minmax_ukernel_1x4c2__sse2(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)])18 void xnn_qs8_gemm_xw_minmax_ukernel_1x4c2__sse2(
19 size_t mr,
20 size_t nc,
21 size_t kc,
22 const int8_t* restrict a,
23 size_t a_stride,
24 const void* restrict w,
25 int8_t* restrict c,
26 size_t cm_stride,
27 size_t cn_stride,
28 const union xnn_qs8_gemm_xw_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
29 {
30 assert(mr != 0);
31 assert(mr <= 1);
32 assert(nc != 0);
33 assert(kc != 0);
34 assert(kc % sizeof(int8_t) == 0);
35 assert(a != NULL);
36 assert(w != NULL);
37 assert(c != NULL);
38
39 kc = round_up_po2(kc, 2);
40 const int8_t* a0 = a;
41 int8_t* c0 = c;
42
43 do {
44 __m128i vacc0x0123 = _mm_loadu_si128((const __m128i*) w);
45 w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
46
47 size_t k = kc;
48 while (k >= 8 * sizeof(int8_t)) {
49 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
50 const __m128i vxa0 = _mm_unpacklo_epi8(va0, _mm_cmpgt_epi8(_mm_setzero_si128(), va0));
51 a0 += 8;
52
53 const __m128i vxb0 = _mm_load_si128((const __m128i*) w);
54
55 vacc0x0123 = _mm_add_epi32(vacc0x0123,
56 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
57 const __m128i vxb1 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 8 * sizeof(int16_t)));
58
59 vacc0x0123 = _mm_add_epi32(vacc0x0123,
60 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
61 const __m128i vxb2 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 16 * sizeof(int16_t)));
62
63 vacc0x0123 = _mm_add_epi32(vacc0x0123,
64 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
65 const __m128i vxb3 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 24 * sizeof(int16_t)));
66
67 vacc0x0123 = _mm_add_epi32(vacc0x0123,
68 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
69
70 w = (const void*) ((uintptr_t) w + 32 * sizeof(int16_t));
71 k -= 8 * sizeof(int8_t);
72 }
73 if (k != 0) {
74 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
75 const __m128i vxa0 = _mm_unpacklo_epi8(va0, _mm_cmpgt_epi8(_mm_setzero_si128(), va0));
76 a0 = (const int8_t*) ((uintptr_t) a0 + k);
77
78 const __m128i vxb0 = _mm_load_si128((const __m128i*) w);
79 w = (const void*) ((uintptr_t) w + 8 * sizeof(int16_t));
80
81 vacc0x0123 = _mm_add_epi32(vacc0x0123,
82 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
83
84 if (k > 2 * sizeof(int8_t)) {
85 const __m128i vxb1 = _mm_load_si128((const __m128i*) w);
86 w = (const void*) ((uintptr_t) w + 8 * sizeof(int16_t));
87
88 vacc0x0123 = _mm_add_epi32(vacc0x0123,
89 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
90
91 if (k > 4 * sizeof(int8_t)) {
92 const __m128i vxb2 = _mm_load_si128((const __m128i*) w);
93 w = (const void*) ((uintptr_t) w + 8 * sizeof(int16_t));
94
95 vacc0x0123 = _mm_add_epi32(vacc0x0123,
96 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
97 }
98 }
99 }
100
101 const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->sse2.multiplier);
102 const __m128i vrounding = _mm_load_si128((const __m128i*) params->sse2.rounding);
103
104 const __m128i vnmask0x0123 = _mm_cmpgt_epi32(_mm_setzero_si128(), vacc0x0123);
105
106 const __m128i vabsacc0x0123 = _mm_sub_epi32(_mm_xor_si128(vacc0x0123, vnmask0x0123), vnmask0x0123);
107
108 const __m128i vabsacc0x1133 = _mm_shuffle_epi32(vabsacc0x0123, _MM_SHUFFLE(3, 3, 1, 1));
109
110 const __m128i vabsprod0x02 = _mm_mul_epu32(vabsacc0x0123, vmultiplier);
111
112 const __m128i vnmask0x02 = _mm_shuffle_epi32(vnmask0x0123, _MM_SHUFFLE(2, 2, 0, 0));
113
114 const __m128i vprod0x02 = _mm_sub_epi64(_mm_xor_si128(vabsprod0x02, vnmask0x02), vnmask0x02);
115
116 const __m128i vq31prod0x02 = _mm_srli_epi64(_mm_add_epi64(vprod0x02, vrounding), 31);
117
118 const __m128i vabsprod0x13 = _mm_mul_epu32(vabsacc0x1133, vmultiplier);
119
120 const __m128i vnmask0x13 = _mm_shuffle_epi32(vnmask0x0123, _MM_SHUFFLE(3, 3, 1, 1));
121
122 const __m128i vprod0x13 = _mm_sub_epi64(_mm_xor_si128(vabsprod0x13, vnmask0x13), vnmask0x13);
123
124 const __m128i vq31prod0x13 = _mm_srli_epi64(_mm_add_epi64(vprod0x13, vrounding), 31);
125
126 const __m128i vq31prod0x0213 = _mm_castps_si128(_mm_shuffle_ps(
127 _mm_castsi128_ps(vq31prod0x02), _mm_castsi128_ps(vq31prod0x13), _MM_SHUFFLE(2, 0, 2, 0)));
128
129 const __m128i vq31prod0x0123 = _mm_shuffle_epi32(vq31prod0x0213, _MM_SHUFFLE(3, 1, 2, 0));
130
131 const __m128i vremainder_mask = _mm_load_si128((const __m128i*) params->sse2.remainder_mask);
132 const __m128i vrem0x0123 =
133 _mm_add_epi32(_mm_and_si128(vq31prod0x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod0x0123));
134
135 const __m128i vremainder_threshold = _mm_load_si128((const __m128i*) params->sse2.remainder_threshold);
136 const __m128i vshift = _mm_load_si128((const __m128i*) params->sse2.shift);
137 vacc0x0123 =
138 _mm_sub_epi32(_mm_sra_epi32(vq31prod0x0123, vshift), _mm_cmpgt_epi32(vrem0x0123, vremainder_threshold));
139
140 const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
141 __m128i vacc00x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc0x0123), voutput_zero_point);
142
143 const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
144 const __m128i voutput_max = _mm_load_si128((const __m128i*) params->sse2.output_max);
145 vacc00x0123 = _mm_min_epi16(_mm_max_epi16(vacc00x0123, voutput_min), voutput_max);
146
147 __m128i vout = _mm_packs_epi16(vacc00x0123, vacc00x0123);
148
149 if (nc >= 4) {
150 *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
151
152 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
153
154 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
155
156 nc -= 4;
157 } else {
158 if (nc & 2) {
159 *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0);
160 c0 += 2;
161 vout = _mm_srli_epi32(vout, 16);
162 }
163 if (nc & 1) {
164 *((int8_t*) c0) = (int8_t) _mm_cvtsi128_si32(vout);
165 }
166
167 nc = 0;
168 }
169 } while (nc != 0);
170 }
171