1 // Auto-generated file. Do not edit!
2 // Template: src/f16-prelu/f16c.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2022 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 <immintrin.h>
13
14 #include <xnnpack/math.h>
15 #include <xnnpack/prelu.h>
16
17
xnn_f16_prelu_ukernel__f16c_2x16(size_t rows,size_t channels,const void * restrict input,size_t input_stride,const void * restrict weights,void * restrict output,size_t output_stride)18 void xnn_f16_prelu_ukernel__f16c_2x16(
19 size_t rows,
20 size_t channels,
21 const void* restrict input,
22 size_t input_stride,
23 const void* restrict weights,
24 void* restrict output,
25 size_t output_stride) XNN_OOB_READS
26 {
27 assert(rows != 0);
28 assert(channels != 0);
29 assert(channels % sizeof(uint16_t) == 0);
30
31 const uint16_t* i0 = (const uint16_t*) input;
32 uint16_t* o0 = (uint16_t*) output;
33 const uint16_t* i1 = (const uint16_t*) ((uintptr_t) i0 + input_stride);
34 uint16_t* o1 = (uint16_t*) ((uintptr_t) o0 + output_stride);
35
36 const size_t input_increment = input_stride * 2 - channels;
37 const size_t output_increment = output_stride * 2 - channels;
38
39 do {
40 if XNN_UNPREDICTABLE(rows < 2) {
41 i1 = i0;
42 o1 = o0;
43 }
44
45 const uint16_t* w = (const uint16_t*) weights;
46 size_t c = channels;
47 for (; c >= 16 * sizeof(uint16_t); c -= 16 * sizeof(uint16_t)) {
48 const __m256 vw01234567 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) w));
49 const __m256 vw89ABCDEF = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) (w + 8)));
50 w += 16;
51
52 const __m256 vi0x001234567 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) i0));
53 const __m256 vi0x089ABCDEF = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) (i0 + 8)));
54 i0 += 16;
55 const __m256 vi1x001234567 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) i1));
56 const __m256 vi1x089ABCDEF = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) (i1 + 8)));
57 i1 += 16;
58
59 __m256 vacc0x001234567 = _mm256_mul_ps(vi0x001234567, vw01234567);
60 __m256 vacc0x089ABCDEF = _mm256_mul_ps(vi0x089ABCDEF, vw89ABCDEF);
61 __m256 vacc1x001234567 = _mm256_mul_ps(vi1x001234567, vw01234567);
62 __m256 vacc1x089ABCDEF = _mm256_mul_ps(vi1x089ABCDEF, vw89ABCDEF);
63
64 vacc0x001234567 = _mm256_blendv_ps(vi0x001234567, vacc0x001234567, vi0x001234567);
65 vacc0x089ABCDEF = _mm256_blendv_ps(vi0x089ABCDEF, vacc0x089ABCDEF, vi0x089ABCDEF);
66 vacc1x001234567 = _mm256_blendv_ps(vi1x001234567, vacc1x001234567, vi1x001234567);
67 vacc1x089ABCDEF = _mm256_blendv_ps(vi1x089ABCDEF, vacc1x089ABCDEF, vi1x089ABCDEF);
68
69 _mm_storeu_si128((__m128i*) o0, _mm256_cvtps_ph(vacc0x089ABCDEF, _MM_FROUND_NO_EXC));
70 _mm_storeu_si128((__m128i*) (o0 + 0), _mm256_cvtps_ph(vacc0x001234567, _MM_FROUND_NO_EXC));
71 _mm_storeu_si128((__m128i*) (o0 + 8), _mm256_cvtps_ph(vacc0x089ABCDEF, _MM_FROUND_NO_EXC));
72 o0 += 16;
73 _mm_storeu_si128((__m128i*) o1, _mm256_cvtps_ph(vacc1x089ABCDEF, _MM_FROUND_NO_EXC));
74 _mm_storeu_si128((__m128i*) (o1 + 0), _mm256_cvtps_ph(vacc1x001234567, _MM_FROUND_NO_EXC));
75 _mm_storeu_si128((__m128i*) (o1 + 8), _mm256_cvtps_ph(vacc1x089ABCDEF, _MM_FROUND_NO_EXC));
76 o1 += 16;
77 }
78 for (; c >= 8 * sizeof(uint16_t); c -= 8 * sizeof(uint16_t)) {
79 const __m256 vw01234567 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) w));
80 w += 8;
81
82 const __m256 vi0x01234567 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) i0));
83 i0 += 8;
84 const __m256 vi1x01234567 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) i1));
85 i1 += 8;
86
87 __m256 vacc0x01234567 = _mm256_mul_ps(vi0x01234567, vw01234567);
88 __m256 vacc1x01234567 = _mm256_mul_ps(vi1x01234567, vw01234567);
89
90 vacc0x01234567 = _mm256_blendv_ps(vi0x01234567, vacc0x01234567, vi0x01234567);
91 vacc1x01234567 = _mm256_blendv_ps(vi1x01234567, vacc1x01234567, vi1x01234567);
92
93 _mm_storeu_si128((__m128i*) o0, _mm256_cvtps_ph(vacc0x01234567, _MM_FROUND_NO_EXC));
94 o0 += 8;
95 _mm_storeu_si128((__m128i*) o1, _mm256_cvtps_ph(vacc1x01234567, _MM_FROUND_NO_EXC));
96 o1 += 8;
97 }
98 if XNN_UNLIKELY(c != 0) {
99 const __m256 vw01234567 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) w));
100
101 const __m256 vi0x01234567 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) i0));
102 i0 = (const uint16_t*) ((uintptr_t) i0 + c);
103 const __m256 vi1x01234567 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) i1));
104 i1 = (const uint16_t*) ((uintptr_t) i1 + c);
105
106 __m256 vacc0x01234567 = _mm256_mul_ps(vi0x01234567, vw01234567);
107 __m256 vacc1x01234567 = _mm256_mul_ps(vi1x01234567, vw01234567);
108
109 vacc0x01234567 = _mm256_blendv_ps(vi0x01234567, vacc0x01234567, vi0x01234567);
110 vacc1x01234567 = _mm256_blendv_ps(vi1x01234567, vacc1x01234567, vi1x01234567);
111
112 __m128i vh0x01234567 = _mm256_cvtps_ph(vacc0x01234567, _MM_FROUND_NO_EXC);
113 __m128i vh1x01234567 = _mm256_cvtps_ph(vacc1x01234567, _MM_FROUND_NO_EXC);
114 if (c & (4 * sizeof(uint16_t))) {
115 _mm_storel_epi64((__m128i*) o0, vh0x01234567);
116 _mm_storel_epi64((__m128i*) o1, vh1x01234567);
117
118 vh0x01234567 = _mm_unpackhi_epi64(vh0x01234567, vh0x01234567);
119 vh1x01234567 = _mm_unpackhi_epi64(vh1x01234567, vh1x01234567);
120
121 o0 += 4;
122 o1 += 4;
123 }
124 if (c & (2 * sizeof(uint16_t))) {
125 *((uint32_t*) o0) = (uint32_t) _mm_cvtsi128_si32(vh0x01234567);
126 *((uint32_t*) o1) = (uint32_t) _mm_cvtsi128_si32(vh1x01234567);
127
128 vh0x01234567 = _mm_srli_epi64(vh0x01234567, 32);
129 vh1x01234567 = _mm_srli_epi64(vh1x01234567, 32);
130
131 o0 += 2;
132 o1 += 2;
133 }
134 if (c & (1 * sizeof(uint16_t))) {
135 *o0 = (uint16_t) _mm_extract_epi16(vh0x01234567, 0);
136 *o1 = (uint16_t) _mm_extract_epi16(vh1x01234567, 0);
137
138 o0 += 1;
139 o1 += 1;
140 }
141 }
142 i0 = (const uint16_t*) ((uintptr_t) i0 + input_increment);
143 o0 = (uint16_t*) ((uintptr_t) o0 + output_increment);
144 i1 = (const uint16_t*) ((uintptr_t) i1 + input_increment);
145 o1 = (uint16_t*) ((uintptr_t) o1 + output_increment);
146 rows = doz(rows, 2);
147 } while (rows != 0);
148 }
149