1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-igemm/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 <emmintrin.h>
13
14 #include <xnnpack/igemm.h>
15 #include <xnnpack/math.h>
16 #include <xnnpack/unaligned.h>
17
18
xnn_qc8_igemm_minmax_fp32_ukernel_2x4c8__sse2_ld128(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_qc8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_qc8_igemm_minmax_fp32_ukernel_2x4c8__sse2_ld128(
20 size_t mr,
21 size_t nc,
22 size_t kc,
23 size_t ks,
24 const int8_t** restrict a,
25 const void* restrict w,
26 int8_t* restrict c,
27 size_t cm_stride,
28 size_t cn_stride,
29 size_t a_offset,
30 const int8_t* zero,
31 const union xnn_qc8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
32 {
33 assert(mr != 0);
34 assert(mr <= 2);
35 assert(nc != 0);
36 assert(kc != 0);
37 assert(ks != 0);
38 assert(ks % (2 * sizeof(void*)) == 0);
39 assert(a_offset % 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 int8_t* c0 = c;
46 int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
47 if XNN_UNPREDICTABLE(mr != 2) {
48 c1 = c0;
49 }
50
51 do {
52 __m128i vacc0x0 = _mm_cvtsi32_si128(((const int*) w)[0]);
53 __m128i vacc0x1 = _mm_cvtsi32_si128(((const int*) w)[1]);
54 __m128i vacc0x2 = _mm_cvtsi32_si128(((const int*) w)[2]);
55 __m128i vacc0x3 = _mm_cvtsi32_si128(((const int*) w)[3]);
56 __m128i vacc1x0 = vacc0x0;
57 __m128i vacc1x1 = vacc0x1;
58 __m128i vacc1x2 = vacc0x2;
59 __m128i vacc1x3 = vacc0x3;
60 w = (const int32_t*) w + 4;
61
62 size_t p = ks;
63 do {
64 const int8_t* restrict a0 = a[0];
65 if XNN_UNPREDICTABLE(a0 != zero) {
66 a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
67 }
68 const int8_t* restrict a1 = a[1];
69 if XNN_UNPREDICTABLE(a1 != zero) {
70 a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);
71 }
72 a += 2;
73
74 size_t k = 0;
75 while (k < kc) {
76 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
77 const __m128i vxa0 = _mm_srai_epi16(_mm_unpacklo_epi8(va0, va0), 8);
78 a0 += 8;
79 const __m128i va1 = _mm_loadl_epi64((const __m128i*) a1);
80 const __m128i vxa1 = _mm_srai_epi16(_mm_unpacklo_epi8(va1, va1), 8);
81 a1 += 8;
82
83 const __m128i vb01 = _mm_load_si128((const __m128i*) w);
84 const __m128i vsb01 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb01);
85 const __m128i vxb0 = _mm_unpacklo_epi8(vb01, vsb01);
86 const __m128i vxb1 = _mm_unpackhi_epi8(vb01, vsb01);
87
88 vacc0x0 = _mm_add_epi32(vacc0x0, _mm_madd_epi16(vxa0, vxb0));
89 vacc0x1 = _mm_add_epi32(vacc0x1, _mm_madd_epi16(vxa0, vxb1));
90 vacc1x0 = _mm_add_epi32(vacc1x0, _mm_madd_epi16(vxa1, vxb0));
91 vacc1x1 = _mm_add_epi32(vacc1x1, _mm_madd_epi16(vxa1, vxb1));
92 const __m128i vb23 = _mm_load_si128((const __m128i*) ((const int8_t*) w + 16));
93 const __m128i vsb23 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb23);
94 const __m128i vxb2 = _mm_unpacklo_epi8(vb23, vsb23);
95 const __m128i vxb3 = _mm_unpackhi_epi8(vb23, vsb23);
96
97 vacc0x2 = _mm_add_epi32(vacc0x2, _mm_madd_epi16(vxa0, vxb2));
98 vacc0x3 = _mm_add_epi32(vacc0x3, _mm_madd_epi16(vxa0, vxb3));
99 vacc1x2 = _mm_add_epi32(vacc1x2, _mm_madd_epi16(vxa1, vxb2));
100 vacc1x3 = _mm_add_epi32(vacc1x3, _mm_madd_epi16(vxa1, vxb3));
101
102 w = (const void*) ((const int8_t*) w + 32);
103 k += 8 * sizeof(int8_t);
104 }
105 p -= 2 * sizeof(void*);
106 } while (p != 0);
107
108 const __m128i vacc0x02 = _mm_add_epi32(_mm_unpacklo_epi32(vacc0x0, vacc0x2), _mm_unpackhi_epi32(vacc0x0, vacc0x2));
109 const __m128i vacc0x13 = _mm_add_epi32(_mm_unpacklo_epi32(vacc0x1, vacc0x3), _mm_unpackhi_epi32(vacc0x1, vacc0x3));
110 const __m128i vacc1x02 = _mm_add_epi32(_mm_unpacklo_epi32(vacc1x0, vacc1x2), _mm_unpackhi_epi32(vacc1x0, vacc1x2));
111 const __m128i vacc1x13 = _mm_add_epi32(_mm_unpacklo_epi32(vacc1x1, vacc1x3), _mm_unpackhi_epi32(vacc1x1, vacc1x3));
112
113 __m128i vacc0x0123 = _mm_add_epi32(_mm_unpacklo_epi32(vacc0x02, vacc0x13), _mm_unpackhi_epi32(vacc0x02, vacc0x13));
114 __m128i vacc1x0123 = _mm_add_epi32(_mm_unpacklo_epi32(vacc1x02, vacc1x13), _mm_unpackhi_epi32(vacc1x02, vacc1x13));
115
116 __m128 vscaled0x0123 = _mm_cvtepi32_ps(vacc0x0123);
117 __m128 vscaled1x0123 = _mm_cvtepi32_ps(vacc1x0123);
118
119 const __m128 vscale0123 = _mm_load_ps((const float*) w);
120 w = (const void*) ((const float*) w + 4);
121 vscaled0x0123 = _mm_mul_ps(vscaled0x0123, vscale0123);
122 vscaled1x0123 = _mm_mul_ps(vscaled1x0123, vscale0123);
123
124 const __m128 voutput_max_less_zero_point = _mm_load_ps(params->fp32_sse2.output_max_less_zero_point);
125 vscaled0x0123 = _mm_min_ps(vscaled0x0123, voutput_max_less_zero_point);
126 vscaled1x0123 = _mm_min_ps(vscaled1x0123, voutput_max_less_zero_point);
127
128 vacc0x0123 = _mm_cvtps_epi32(vscaled0x0123);
129 vacc1x0123 = _mm_cvtps_epi32(vscaled1x0123);
130
131 const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->fp32_sse2.output_zero_point);
132 __m128i vacc01x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc1x0123), voutput_zero_point);
133
134 const __m128i voutput_min = _mm_load_si128((const __m128i*) params->fp32_sse2.output_min);
135 vacc01x0123 = _mm_max_epi16(vacc01x0123, voutput_min);
136
137 __m128i vout = _mm_packs_epi16(vacc01x0123, vacc01x0123);
138
139
140 if (nc >= 4) {
141 unaligned_store_u32(c1, (uint32_t) _mm_cvtsi128_si32(_mm_shuffle_epi32(vout, _MM_SHUFFLE(1, 1, 1, 1))));
142 c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
143 unaligned_store_u32(c0, (uint32_t) _mm_cvtsi128_si32(vout));
144 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
145
146 a = (const int8_t**restrict) ((uintptr_t) a - ks);
147
148 nc -= 4;
149 } else {
150 if (nc & 2) {
151 unaligned_store_u16(c1, (uint16_t) _mm_extract_epi16(vout, 2));
152 c1 += 2;
153 unaligned_store_u16(c0, (uint16_t) _mm_extract_epi16(vout, 0));
154 c0 += 2;
155 vout = _mm_srli_epi32(vout, 16);
156 }
157 if (nc & 1) {
158 *c1 = (int8_t) _mm_extract_epi16(vout, 2);
159 *c0 = (int8_t) _mm_cvtsi128_si32(vout);
160 }
161
162 nc = 0;
163 }
164 } while (nc != 0);
165 }
166