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_1x4c2__sse2_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_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_qc8_gemm_minmax_fp32_ukernel_1x4c2__sse2_ld128(
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 <= 1);
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
44 do {
45 __m128i vacc0x0123 = _mm_loadu_si128((const __m128i*) w);
46 w = (const void*) ((const int32_t*) w + 4);
47
48 size_t k = kc;
49 while (k >= 8 * sizeof(int8_t)) {
50 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
51 const __m128i vxa0 = _mm_srai_epi16(_mm_unpacklo_epi8(va0, va0), 8);
52 a0 += 8;
53
54 const __m128i vb01 = _mm_loadu_si128((const __m128i*) w);
55 const __m128i vsb01 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb01);
56 const __m128i vxb0 = _mm_unpacklo_epi8(vb01, vsb01);
57 const __m128i vxb1 = _mm_unpackhi_epi8(vb01, vsb01);
58
59 vacc0x0123 = _mm_add_epi32(vacc0x0123,
60 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
61
62 vacc0x0123 = _mm_add_epi32(vacc0x0123,
63 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
64 const __m128i vb23 = _mm_loadu_si128((const __m128i*) ((const int8_t*) w + 16));
65 const __m128i vsb23 = _mm_cmpgt_epi8(_mm_setzero_si128(), vb23);
66 const __m128i vxb2 = _mm_unpacklo_epi8(vb23, vsb23);
67 const __m128i vxb3 = _mm_unpackhi_epi8(vb23, vsb23);
68
69 vacc0x0123 = _mm_add_epi32(vacc0x0123,
70 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
71
72 vacc0x0123 = _mm_add_epi32(vacc0x0123,
73 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(3, 3, 3, 3)), vxb3));
74
75 w = (const void*) ((const int8_t*) w + 32);
76 k -= 8 * sizeof(int8_t);
77 }
78 if (k != 0) {
79 const __m128i va0 = _mm_loadl_epi64((const __m128i*) a0);
80 const __m128i vxa0 = _mm_srai_epi16(_mm_unpacklo_epi8(va0, va0), 8);
81 a0 = (const int8_t*) ((uintptr_t) a0 + k);
82
83 const __m128i vb0 = _mm_loadl_epi64((const __m128i*) w);
84 const __m128i vxb0 = _mm_srai_epi16(_mm_unpacklo_epi8(vb0, vb0), 8);
85 w = (const void*) ((const int8_t*) w + 8);
86
87 vacc0x0123 = _mm_add_epi32(vacc0x0123,
88 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(0, 0, 0, 0)), vxb0));
89
90 if (k > 2 * sizeof(int8_t)) {
91 const __m128i vb1 = _mm_loadl_epi64((const __m128i*) w);
92 const __m128i vxb1 = _mm_srai_epi16(_mm_unpacklo_epi8(vb1, vb1), 8);
93 w = (const void*) ((const int8_t*) w + 8);
94
95 vacc0x0123 = _mm_add_epi32(vacc0x0123,
96 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(1, 1, 1, 1)), vxb1));
97
98 if (k > 4 * sizeof(int8_t)) {
99 const __m128i vb2 = _mm_loadl_epi64((const __m128i*) w);
100 const __m128i vxb2 = _mm_srai_epi16(_mm_unpacklo_epi8(vb2, vb2), 8);
101 w = (const void*) ((const int8_t*) w + 8);
102
103 vacc0x0123 = _mm_add_epi32(vacc0x0123,
104 _mm_madd_epi16(_mm_shuffle_epi32(vxa0, _MM_SHUFFLE(2, 2, 2, 2)), vxb2));
105 }
106 }
107 }
108
109 __m128 vscaled0x0123 = _mm_cvtepi32_ps(vacc0x0123);
110
111 const __m128 vscale0123 = _mm_loadu_ps((const float*) w);
112 w = (const void*) ((const float*) w + 4);
113 vscaled0x0123 = _mm_mul_ps(vscaled0x0123, vscale0123);
114
115 const __m128 voutput_max_less_zero_point = _mm_load_ps(params->sse2.output_max_less_zero_point);
116 vscaled0x0123 = _mm_min_ps(vscaled0x0123, voutput_max_less_zero_point);
117
118 vacc0x0123 = _mm_cvtps_epi32(vscaled0x0123);
119
120 const __m128i voutput_zero_point = _mm_load_si128((const __m128i*) params->sse2.output_zero_point);
121 __m128i vacc00x0123 = _mm_adds_epi16(_mm_packs_epi32(vacc0x0123, vacc0x0123), voutput_zero_point);
122
123 const __m128i voutput_min = _mm_load_si128((const __m128i*) params->sse2.output_min);
124 vacc00x0123 = _mm_max_epi16(vacc00x0123, voutput_min);
125
126 __m128i vout = _mm_packs_epi16(vacc00x0123, vacc00x0123);
127
128
129 if (nc >= 4) {
130 *((uint32_t*) c0) = (uint32_t) _mm_cvtsi128_si32(vout);
131
132 c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
133
134 a0 = (const int8_t*) ((uintptr_t) a0 - kc);
135
136 nc -= 4;
137 } else {
138 if (nc & 2) {
139 *((uint16_t*) c0) = (uint16_t) _mm_extract_epi16(vout, 0);
140 c0 += 2;
141 vout = _mm_srli_epi32(vout, 16);
142 }
143 if (nc & 1) {
144 *c0 = (int8_t) _mm_cvtsi128_si32(vout);
145 }
146
147 nc = 0;
148 }
149 } while (nc != 0);
150 }
151