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 #include <smmintrin.h>
13
14 #include <xnnpack/gemm.h>
15 #include <xnnpack/math.h>
16
17
xnn_qs8_gemm_minmax_ukernel_2x4c8__sse41_ld128(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_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_qs8_gemm_minmax_ukernel_2x4c8__sse41_ld128(
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_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_DISABLE_TSAN
29 {
30 assert(mr != 0);
31 assert(mr <= 2);
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, 8);
40 const int8_t* a0 = a;
41 int8_t* c0 = c;
42 const int8_t* a1 = (const int8_t*) ((uintptr_t) a0 + a_stride);
43 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
44 if XNN_UNPREDICTABLE(mr != 2) {
45 a1 = a0;
46 c1 = c0;
47 }
48
49 do {
50 __m128i vacc0x0 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[0]);
51 __m128i vacc0x1 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[1]);
52 __m128i vacc0x2 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[2]);
53 __m128i vacc0x3 = _mm_cvtsi32_si128((int) ((const int32_t*) w)[3]);
54 __m128i vacc1x0 = vacc0x0;
55 __m128i vacc1x1 = vacc0x1;
56 __m128i vacc1x2 = vacc0x2;
57 __m128i vacc1x3 = vacc0x3;
58 w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
59
60 size_t k = 0;
61 while (k < kc) {
62 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
63 const __m128i vxa0 = _mm_cvtepi8_epi16(va0);
64 a0 += 8;
65 const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
66 const __m128i vxa1 = _mm_cvtepi8_epi16(va1);
67 a1 += 8;
68
69 const __m128i vb01 = _mm_load_si128((const __m128i*) w);
70 const __m128i vsb01 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb01);
71 const __m128i vxb0 = _mm_unpacklo_epi8(vb01, vsb01);
72 const __m128i vxb1 = _mm_unpackhi_epi8(vb01, vsb01);
73
74 vacc0x0 = _mm_add_epi32(vacc0x0, _mm_madd_epi16(vxa0, vxb0));
75 vacc0x1 = _mm_add_epi32(vacc0x1, _mm_madd_epi16(vxa0, vxb1));
76 vacc1x0 = _mm_add_epi32(vacc1x0, _mm_madd_epi16(vxa1, vxb0));
77 vacc1x1 = _mm_add_epi32(vacc1x1, _mm_madd_epi16(vxa1, vxb1));
78 const __m128i vb23 = _mm_load_si128((const __m128i*) ((uintptr_t) w + 16 * sizeof(int8_t)));
79 const __m128i vsb23 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb23);
80 const __m128i vxb2 = _mm_unpacklo_epi8(vb23, vsb23);
81 const __m128i vxb3 = _mm_unpackhi_epi8(vb23, vsb23);
82
83 vacc0x2 = _mm_add_epi32(vacc0x2, _mm_madd_epi16(vxa0, vxb2));
84 vacc0x3 = _mm_add_epi32(vacc0x3, _mm_madd_epi16(vxa0, vxb3));
85 vacc1x2 = _mm_add_epi32(vacc1x2, _mm_madd_epi16(vxa1, vxb2));
86 vacc1x3 = _mm_add_epi32(vacc1x3, _mm_madd_epi16(vxa1, vxb3));
87
88 w = (const void*) ((uintptr_t) w + 32 * sizeof(int8_t));
89 k += 8 * sizeof(int8_t);
90 }
91
92 const __m128i vacc0x01 = _mm_hadd_epi32(vacc0x0, vacc0x1);
93 const __m128i vacc0x23 = _mm_hadd_epi32(vacc0x2, vacc0x3);
94 const __m128i vacc1x01 = _mm_hadd_epi32(vacc1x0, vacc1x1);
95 const __m128i vacc1x23 = _mm_hadd_epi32(vacc1x2, vacc1x3);
96
97 __m128i vacc0x0123 = _mm_hadd_epi32(vacc0x01, vacc0x23);
98 __m128i vacc1x0123 = _mm_hadd_epi32(vacc1x01, vacc1x23);
99
100 const __m128i vmultiplier = _mm_load_si128((const __m128i*) params->sse2.multiplier);
101 const __m128i vrounding = _mm_load_si128((const __m128i*) params->sse2.rounding);
102
103 const __m128i vacc0x1133 = _mm_shuffle_epi32(vacc0x0123, _MM_SHUFFLE(3, 3, 1, 1));
104 const __m128i vacc1x1133 = _mm_shuffle_epi32(vacc1x0123, _MM_SHUFFLE(3, 3, 1, 1));
105
106 const __m128i vprod0x02 = _mm_add_epi64(_mm_mul_epi32(vacc0x0123, vmultiplier), vrounding);
107 const __m128i vprod1x02 = _mm_add_epi64(_mm_mul_epi32(vacc1x0123, vmultiplier), vrounding);
108
109 const __m128i vprod0x13 = _mm_add_epi64(_mm_mul_epi32(vacc0x1133, vmultiplier), vrounding);
110 const __m128i vprod1x13 = _mm_add_epi64(_mm_mul_epi32(vacc1x1133, vmultiplier), vrounding);
111
112 const __m128i vq31prod0x02 = _mm_srli_epi64(vprod0x02, 31);
113 const __m128i vq31prod0x13 = _mm_add_epi64(vprod0x13, vprod0x13);
114 const __m128i vq31prod1x02 = _mm_srli_epi64(vprod1x02, 31);
115 const __m128i vq31prod1x13 = _mm_add_epi64(vprod1x13, vprod1x13);
116
117 const __m128i vq31prod0x0123 = _mm_blend_epi16(vq31prod0x02, vq31prod0x13, 0xCC);
118 const __m128i vq31prod1x0123 = _mm_blend_epi16(vq31prod1x02, vq31prod1x13, 0xCC);
119
120 const __m128i vremainder_mask = _mm_load_si128((const __m128i*) params->sse2.remainder_mask);
121 const __m128i vrem0x0123 =
122 _mm_add_epi32(_mm_and_si128(vq31prod0x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod0x0123));
123 const __m128i vrem1x0123 =
124 _mm_add_epi32(_mm_and_si128(vq31prod1x0123, vremainder_mask), _mm_cmpgt_epi32(_mm_setzero_si128(), vq31prod1x0123));
125
126 const __m128i vremainder_threshold = _mm_load_si128((const __m128i*) params->sse2.remainder_threshold);
127 const __m128i vshift = _mm_load_si128((const __m128i*) params->sse2.shift);
128 vacc0x0123 =
129 _mm_sub_epi32(_mm_sra_epi32(vq31prod0x0123, vshift), _mm_cmpgt_epi32(vrem0x0123, vremainder_threshold));
130 vacc1x0123 =
131 _mm_sub_epi32(_mm_sra_epi32(vq31prod1x0123, vshift), _mm_cmpgt_epi32(vrem1x0123, vremainder_threshold));
132
133 const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
134 __m128i vacc01x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc1x0123), voutput_zero_point);
135
136 const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
137 const __m128i voutput_max = _mm_load_si128((const __m128i*) params->sse2.output_max);
138 vacc01x0123 = _mm_min_epi16(_mm_max_epi16(vacc01x0123, voutput_min), voutput_max);
139
140 __m128i vout = _mm_packs_epi16(vacc01x0123, vacc01x0123);
141
142 if (nc >= 4) {
143 *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
144 *((uint32_t*) c1) = (uint32_t) _mm_extract_epi32(vout, 1);
145
146 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
147 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
148
149 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
150 a1 = (const int8_t*) ((uintptr_t) a1 - kc);
151
152 nc -= 4;
153 } else {
154 if (nc & 2) {
155 *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0);
156 c0 += 2;
157 *((uint16_t*) c1) = (uint16_t) _mm_extract_epi16(vout, 2);
158 c1 += 2;
159 vout = _mm_srli_epi32(vout, 16);
160 }
161 if (nc & 1) {
162 *((int8_t*) c0) = (int8_t) _mm_extract_epi8(vout, 0);
163 *((int8_t*) c1) = (int8_t) _mm_extract_epi8(vout, 4);
164 }
165
166 nc = 0;
167 }
168 } while (nc != 0);
169 }
170