1 // Auto-generated file. Do not edit!
2 // Template: src/s8-ibilinear/sse.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2021 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/common.h>
15 #include <xnnpack/ibilinear.h>
16 #include <xnnpack/unaligned.h>
17
18
xnn_s8_ibilinear_ukernel__sse2_c8(size_t output_pixels,size_t channels,const int8_t ** restrict input,size_t input_offset,const int16_t * restrict weights,int8_t * restrict output,size_t output_increment)19 void xnn_s8_ibilinear_ukernel__sse2_c8(
20 size_t output_pixels,
21 size_t channels,
22 const int8_t**restrict input,
23 size_t input_offset,
24 const int16_t*restrict weights,
25 int8_t*restrict output,
26 size_t output_increment) XNN_OOB_READS
27 {
28 assert(output_pixels != 0);
29 assert(channels != 0);
30
31 do {
32 const int8_t* i0 = (const int8_t*) ((uintptr_t) input[0] + input_offset);
33 const int8_t* i1 = (const int8_t*) ((uintptr_t) input[1] + input_offset);
34 const int8_t* i2 = (const int8_t*) ((uintptr_t) input[2] + input_offset);
35 const int8_t* i3 = (const int8_t*) ((uintptr_t) input[3] + input_offset);
36 input += 4;
37
38 const __m128i valpha = _mm_cvtsi32_si128(*((const int*) weights));
39 weights += 2;
40 __m128i valphah = _mm_shufflelo_epi16(valpha, _MM_SHUFFLE(0, 0, 0, 0));
41 valphah = _mm_unpacklo_epi64(valphah, valphah);
42 __m128i valphav = _mm_shufflelo_epi16(valpha, _MM_SHUFFLE(1, 1, 1, 1));
43 valphav = _mm_unpacklo_epi64(valphav, valphav);
44
45 valphah = _mm_xor_si128(valphah, _mm_set1_epi32(0xFFFF0000));
46 valphah = _mm_add_epi16(valphah, _mm_set1_epi32(0x08010000));
47
48 const __m128i vrounding = _mm_set1_epi32(0x00200000);
49
50 size_t c = channels;
51 for (; c >= 8 * sizeof(int8_t); c -= 8 * sizeof(int8_t)) {
52 __m128i vtl01234567 = _mm_loadl_epi64((const __m128i*) i0);
53 i0 += 8;
54 __m128i vtr01234567 = _mm_loadl_epi64((const __m128i*) i1);
55 i1 += 8;
56 __m128i vbl01234567 = _mm_loadl_epi64((const __m128i*) i2);
57 i2 += 8;
58 __m128i vbr01234567 = _mm_loadl_epi64((const __m128i*) i3);
59 i3 += 8;
60
61 vtl01234567 = _mm_srai_epi16(_mm_unpacklo_epi8(vtl01234567, vtl01234567), 8);
62 vtr01234567 = _mm_srai_epi16(_mm_unpacklo_epi8(vtr01234567, vtr01234567), 8);
63 vbl01234567 = _mm_srai_epi16(_mm_unpacklo_epi8(vbl01234567, vbl01234567), 8);
64 vbr01234567 = _mm_srai_epi16(_mm_unpacklo_epi8(vbr01234567, vbr01234567), 8);
65
66 const __m128i vdr01234567 = _mm_sub_epi16(vbr01234567, vtr01234567);
67 const __m128i vt0123 = _mm_madd_epi16(_mm_unpacklo_epi16(vtr01234567, vtl01234567), valphah);
68 const __m128i vdl01234567 = _mm_sub_epi16(vbl01234567, vtl01234567);
69 const __m128i vt4567 = _mm_madd_epi16(_mm_unpackhi_epi16(vtr01234567, vtl01234567), valphah);
70
71 const __m128i vd0123 = _mm_madd_epi16(_mm_unpacklo_epi16(vdr01234567, vdl01234567), valphah);
72 const __m128i vd4567 = _mm_madd_epi16(_mm_unpackhi_epi16(vdr01234567, vdl01234567), valphah);
73
74 __m128i vacc0123 = _mm_slli_epi32(_mm_mulhi_epu16(vd0123, valphav), 16);
75 __m128i vacc4567 = _mm_slli_epi32(_mm_mulhi_epu16(vd4567, valphav), 16);
76
77 vacc0123 = _mm_add_epi16(_mm_mullo_epi16(vd0123, valphav), vacc0123);
78 vacc4567 = _mm_add_epi16(_mm_mullo_epi16(vd4567, valphav), vacc4567);
79
80 vacc0123 = _mm_add_epi32(_mm_slli_epi32(vt0123, 11), vacc0123);
81 vacc4567 = _mm_add_epi32(_mm_slli_epi32(vt4567, 11), vacc4567);
82
83 vacc0123 = _mm_srai_epi32(_mm_add_epi16(vacc0123, vrounding), 22);
84 vacc4567 = _mm_srai_epi32(_mm_add_epi16(vacc4567, vrounding), 22);
85
86 const __m128i vacc01234567 = _mm_packs_epi32(vacc0123, vacc4567);
87
88 const __m128i vo01234567 = _mm_packs_epi16(vacc01234567, vacc01234567);
89
90 _mm_storel_epi64((__m128i*) output, vo01234567);
91 output += 8;
92 }
93 if XNN_UNLIKELY(c != 0) {
94 __m128i vtl01234567 = _mm_loadl_epi64((const __m128i*) i0);
95 __m128i vtr01234567 = _mm_loadl_epi64((const __m128i*) i1);
96 __m128i vbl01234567 = _mm_loadl_epi64((const __m128i*) i2);
97 __m128i vbr01234567 = _mm_loadl_epi64((const __m128i*) i3);
98
99 vtl01234567 = _mm_srai_epi16(_mm_unpacklo_epi8(vtl01234567, vtl01234567), 8);
100 vtr01234567 = _mm_srai_epi16(_mm_unpacklo_epi8(vtr01234567, vtr01234567), 8);
101 vbl01234567 = _mm_srai_epi16(_mm_unpacklo_epi8(vbl01234567, vbl01234567), 8);
102 vbr01234567 = _mm_srai_epi16(_mm_unpacklo_epi8(vbr01234567, vbr01234567), 8);
103
104 const __m128i vdr01234567 = _mm_sub_epi16(vbr01234567, vtr01234567);
105 const __m128i vt0123 = _mm_madd_epi16(_mm_unpacklo_epi16(vtr01234567, vtl01234567), valphah);
106 const __m128i vdl01234567 = _mm_sub_epi16(vbl01234567, vtl01234567);
107 const __m128i vt4567 = _mm_madd_epi16(_mm_unpackhi_epi16(vtr01234567, vtl01234567), valphah);
108
109 const __m128i vd0123 = _mm_madd_epi16(_mm_unpacklo_epi16(vdr01234567, vdl01234567), valphah);
110 const __m128i vd4567 = _mm_madd_epi16(_mm_unpackhi_epi16(vdr01234567, vdl01234567), valphah);
111
112 __m128i vacc0123 = _mm_slli_epi32(_mm_mulhi_epu16(vd0123, valphav), 16);
113 __m128i vacc4567 = _mm_slli_epi32(_mm_mulhi_epu16(vd4567, valphav), 16);
114
115 vacc0123 = _mm_add_epi16(_mm_mullo_epi16(vd0123, valphav), vacc0123);
116 vacc4567 = _mm_add_epi16(_mm_mullo_epi16(vd4567, valphav), vacc4567);
117
118 vacc0123 = _mm_add_epi32(_mm_slli_epi32(vt0123, 11), vacc0123);
119 vacc4567 = _mm_add_epi32(_mm_slli_epi32(vt4567, 11), vacc4567);
120
121 vacc0123 = _mm_srai_epi32(_mm_add_epi16(vacc0123, vrounding), 22);
122 vacc4567 = _mm_srai_epi32(_mm_add_epi16(vacc4567, vrounding), 22);
123
124 const __m128i vacc01234567 = _mm_packs_epi32(vacc0123, vacc4567);
125
126 __m128i vo01234567 = _mm_packs_epi16(vacc01234567, vacc01234567);
127
128 if (c & (4 * sizeof(int8_t))) {
129 unaligned_store_u32(output, (uint32_t) _mm_cvtsi128_si32(vo01234567));
130 output += 4;
131 vo01234567 = _mm_srli_epi64(vo01234567, 32);
132 }
133 uint32_t vo0123 = (uint32_t) _mm_cvtsi128_si32(vo01234567);
134 if (c & (2 * sizeof(int8_t))) {
135 unaligned_store_u16(output, (uint16_t) vo0123);
136 output += 2;
137 vo0123 >>= 16;
138 }
139 if (c & (1 * sizeof(int8_t))) {
140 *output++ = (uint8_t) vo0123;
141 }
142 }
143
144 output = (int8_t*) ((uintptr_t) output + output_increment);
145 } while (--output_pixels != 0);
146 }
147