1 // Auto-generated file. Do not edit!
2 // Template: src/f16-dwconv2d-chw/3x3p1-neonfp16arith.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 <arm_neon.h>
13
14 #include <xnnpack/dwconv.h>
15 #include <xnnpack/math.h>
16
17
xnn_f16_dwconv2d_chw_ukernel_3x3p1__neonfp16arith_2x8(size_t input_height,size_t input_width,const void * input,const void * weights,const void * zero,void * output,uint32_t padding_top,const union xnn_f16_chw_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_f16_dwconv2d_chw_ukernel_3x3p1__neonfp16arith_2x8(
19 size_t input_height,
20 size_t input_width,
21 const void* input,
22 const void* weights,
23 const void* zero,
24 void* output,
25 uint32_t padding_top,
26 const union xnn_f16_chw_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
27 {
28 assert(input_height != 0);
29 assert(input_width != 0);
30 assert(input_width % sizeof(__fp16) == 0);
31 assert(padding_top == 1);
32
33 const uint16x8_t vmask = vld1q_u16(params->neonfp16arith.maskx8);
34 const float16x8_t vmax = vld1q_dup_f16(¶ms->neonfp16arith.max);
35 const float16x8_t vmin = vld1q_dup_f16(¶ms->neonfp16arith.min);
36
37 const __fp16* w0 = (const __fp16*)weights;
38 const float16x8_t vw01234567 = vld1q_f16(w0);
39 const float16x4_t vw89 = vreinterpret_f16_u32(vld1_lane_u32((const void*)(w0 + 8), vmov_n_u32(0), 0));
40
41 const size_t input_decrement = round_up_po2(input_width, 8 * sizeof(__fp16));
42
43 const __fp16* i0 = zero;
44 const __fp16* i1 = input;
45 const __fp16* i2 = (const __fp16*) ((uintptr_t) i1 + input_width);
46 const __fp16* i3 = (const __fp16*) ((uintptr_t) i2 + input_width);
47
48 __fp16* o0 = output;
49 __fp16* o1 = (__fp16*) ((uintptr_t) o0 + input_width);
50
51 size_t output_height = input_height;
52 do {
53 if XNN_UNPREDICTABLE(output_height < 2) {
54 i2 = zero;
55 o1 = o0;
56 }
57 if XNN_UNPREDICTABLE(output_height < 3) {
58 i3 = zero;
59 }
60
61 float16x8_t vi0x01234567 = vmovq_n_f16(0);
62 float16x8_t vi1x01234567 = vmovq_n_f16(0);
63 float16x8_t vi2x01234567 = vmovq_n_f16(0);
64 float16x8_t vi3x01234567 = vmovq_n_f16(0);
65
66 float16x8_t vi0x89ABCDEF = vld1q_f16(i0); i0 += 8;
67 float16x8_t vi1x89ABCDEF = vld1q_f16(i1); i1 += 8;
68 float16x8_t vi2x89ABCDEF = vld1q_f16(i2); i2 += 8;
69 float16x8_t vi3x89ABCDEF = vld1q_f16(i3); i3 += 8;
70
71 size_t w = input_width;
72 for (; w > 8 * sizeof(__fp16); w -= 8 * sizeof(__fp16)) {
73 float16x8_t vo0p0 = vdupq_lane_f16(vget_low_f16(vw01234567), 0);
74 float16x8_t vo1p0 = vdupq_lane_f16(vget_low_f16(vw01234567), 0);
75
76 const float16x8_t vi0xGHIJKLMN = vld1q_f16(i0); i0 += 8;
77 const float16x8_t vi1xGHIJKLMN = vld1q_f16(i1); i1 += 8;
78 const float16x8_t vi2xGHIJKLMN = vld1q_f16(i2); i2 += 8;
79 const float16x8_t vi3xGHIJKLMN = vld1q_f16(i3); i3 += 8;
80
81 // Center column
82 vo0p0 = vfmaq_lane_f16(vo0p0, vi0x89ABCDEF, vget_low_f16(vw01234567), 2);
83 vo1p0 = vfmaq_lane_f16(vo1p0, vi1x89ABCDEF, vget_low_f16(vw01234567), 2);
84
85 vo0p0 = vfmaq_lane_f16(vo0p0, vi1x89ABCDEF, vget_high_f16(vw01234567), 1);
86 vo1p0 = vfmaq_lane_f16(vo1p0, vi2x89ABCDEF, vget_high_f16(vw01234567), 1);
87
88 vo0p0 = vfmaq_lane_f16(vo0p0, vi2x89ABCDEF, vw89, 0);
89 vo1p0 = vfmaq_lane_f16(vo1p0, vi3x89ABCDEF, vw89, 0);
90
91 // Left column
92 const float16x8_t vi0x789ABCDE = vextq_f16(vi0x01234567, vi0x89ABCDEF, 7);
93 const float16x8_t vi1x789ABCDE = vextq_f16(vi1x01234567, vi1x89ABCDEF, 7);
94 const float16x8_t vi2x789ABCDE = vextq_f16(vi2x01234567, vi2x89ABCDEF, 7);
95 const float16x8_t vi3x789ABCDE = vextq_f16(vi3x01234567, vi3x89ABCDEF, 7);
96
97 vo0p0 = vfmaq_lane_f16(vo0p0, vi0x789ABCDE, vget_low_f16(vw01234567), 1);
98 vo1p0 = vfmaq_lane_f16(vo1p0, vi1x789ABCDE, vget_low_f16(vw01234567), 1);
99
100 vo0p0 = vfmaq_lane_f16(vo0p0, vi1x789ABCDE, vget_high_f16(vw01234567), 0);
101 vo1p0 = vfmaq_lane_f16(vo1p0, vi2x789ABCDE, vget_high_f16(vw01234567), 0);
102
103 vo0p0 = vfmaq_lane_f16(vo0p0, vi2x789ABCDE, vget_high_f16(vw01234567), 3);
104 vo1p0 = vfmaq_lane_f16(vo1p0, vi3x789ABCDE, vget_high_f16(vw01234567), 3);
105
106 vi0x01234567 = vi0x89ABCDEF;
107 vi1x01234567 = vi1x89ABCDEF;
108 vi2x01234567 = vi2x89ABCDEF;
109 vi3x01234567 = vi3x89ABCDEF;
110
111 // Right column
112 const float16x8_t vi0x9ABCDEFG = vextq_f16(vi0x89ABCDEF, vi0xGHIJKLMN, 1);
113 const float16x8_t vi1x9ABCDEFG = vextq_f16(vi1x89ABCDEF, vi1xGHIJKLMN, 1);
114 const float16x8_t vi2x9ABCDEFG = vextq_f16(vi2x89ABCDEF, vi2xGHIJKLMN, 1);
115 const float16x8_t vi3x9ABCDEFG = vextq_f16(vi3x89ABCDEF, vi3xGHIJKLMN, 1);
116
117 vo0p0 = vfmaq_lane_f16(vo0p0, vi0x9ABCDEFG, vget_low_f16(vw01234567), 3);
118 vo1p0 = vfmaq_lane_f16(vo1p0, vi1x9ABCDEFG, vget_low_f16(vw01234567), 3);
119
120 vo0p0 = vfmaq_lane_f16(vo0p0, vi1x9ABCDEFG, vget_high_f16(vw01234567), 2);
121 vo1p0 = vfmaq_lane_f16(vo1p0, vi2x9ABCDEFG, vget_high_f16(vw01234567), 2);
122
123 vo0p0 = vfmaq_lane_f16(vo0p0, vi2x9ABCDEFG, vw89, 1);
124 vo1p0 = vfmaq_lane_f16(vo1p0, vi3x9ABCDEFG, vw89, 1);
125
126 vi0x89ABCDEF = vi0xGHIJKLMN;
127 vi1x89ABCDEF = vi1xGHIJKLMN;
128 vi2x89ABCDEF = vi2xGHIJKLMN;
129 vi3x89ABCDEF = vi3xGHIJKLMN;
130
131
132 float16x8_t vo0 = vmaxq_f16(vo0p0, vmin);
133 float16x8_t vo1 = vmaxq_f16(vo1p0, vmin);
134
135 vo0 = vminq_f16(vo0, vmax);
136 vo1 = vminq_f16(vo1, vmax);
137
138 vst1q_f16(o1, vo1); o1 += 8;
139 vst1q_f16(o0, vo0); o0 += 8;
140 }
141 // Always process the last block of 1..8 pixels.
142 assert(w >= 1 * sizeof(__fp16));
143 assert(w <= 8 * sizeof(__fp16));
144 {
145 float16x8_t vo0p0 = vdupq_lane_f16(vget_low_f16(vw01234567), 0);
146 float16x8_t vo1p0 = vdupq_lane_f16(vget_low_f16(vw01234567), 0);
147
148 vi0x89ABCDEF = vreinterpretq_f16_u16(vandq_u16(vmask, vreinterpretq_u16_f16(vi0x89ABCDEF)));
149 vi1x89ABCDEF = vreinterpretq_f16_u16(vandq_u16(vmask, vreinterpretq_u16_f16(vi1x89ABCDEF)));
150 vi2x89ABCDEF = vreinterpretq_f16_u16(vandq_u16(vmask, vreinterpretq_u16_f16(vi2x89ABCDEF)));
151 vi3x89ABCDEF = vreinterpretq_f16_u16(vandq_u16(vmask, vreinterpretq_u16_f16(vi3x89ABCDEF)));
152
153 // Center column
154 vo0p0 = vfmaq_lane_f16(vo0p0, vi0x89ABCDEF, vget_low_f16(vw01234567), 2);
155 vo1p0 = vfmaq_lane_f16(vo1p0, vi1x89ABCDEF, vget_low_f16(vw01234567), 2);
156
157 vo0p0 = vfmaq_lane_f16(vo0p0, vi1x89ABCDEF, vget_high_f16(vw01234567), 1);
158 vo1p0 = vfmaq_lane_f16(vo1p0, vi2x89ABCDEF, vget_high_f16(vw01234567), 1);
159
160 vo0p0 = vfmaq_lane_f16(vo0p0, vi2x89ABCDEF, vw89, 0);
161 vo1p0 = vfmaq_lane_f16(vo1p0, vi3x89ABCDEF, vw89, 0);
162
163 // Left column
164 const float16x8_t vi0x789ABCDE = vextq_f16(vi0x01234567, vi0x89ABCDEF, 7);
165 const float16x8_t vi1x789ABCDE = vextq_f16(vi1x01234567, vi1x89ABCDEF, 7);
166 const float16x8_t vi2x789ABCDE = vextq_f16(vi2x01234567, vi2x89ABCDEF, 7);
167 const float16x8_t vi3x789ABCDE = vextq_f16(vi3x01234567, vi3x89ABCDEF, 7);
168
169 vo0p0 = vfmaq_lane_f16(vo0p0, vi0x789ABCDE, vget_low_f16(vw01234567), 1);
170 vo1p0 = vfmaq_lane_f16(vo1p0, vi1x789ABCDE, vget_low_f16(vw01234567), 1);
171
172 vo0p0 = vfmaq_lane_f16(vo0p0, vi1x789ABCDE, vget_high_f16(vw01234567), 0);
173 vo1p0 = vfmaq_lane_f16(vo1p0, vi2x789ABCDE, vget_high_f16(vw01234567), 0);
174
175 vo0p0 = vfmaq_lane_f16(vo0p0, vi2x789ABCDE, vget_high_f16(vw01234567), 3);
176 vo1p0 = vfmaq_lane_f16(vo1p0, vi3x789ABCDE, vget_high_f16(vw01234567), 3);
177
178 // Right column
179 const float16x8_t vzero = vmovq_n_f16(0);
180 const float16x8_t vi0x9ABCDEFG = vextq_f16(vi0x89ABCDEF, vzero, 1);
181 const float16x8_t vi1x9ABCDEFG = vextq_f16(vi1x89ABCDEF, vzero, 1);
182 const float16x8_t vi2x9ABCDEFG = vextq_f16(vi2x89ABCDEF, vzero, 1);
183 const float16x8_t vi3x9ABCDEFG = vextq_f16(vi3x89ABCDEF, vzero, 1);
184
185 vo0p0 = vfmaq_lane_f16(vo0p0, vi0x9ABCDEFG, vget_low_f16(vw01234567), 3);
186 vo1p0 = vfmaq_lane_f16(vo1p0, vi1x9ABCDEFG, vget_low_f16(vw01234567), 3);
187
188 vo0p0 = vfmaq_lane_f16(vo0p0, vi1x9ABCDEFG, vget_high_f16(vw01234567), 2);
189 vo1p0 = vfmaq_lane_f16(vo1p0, vi2x9ABCDEFG, vget_high_f16(vw01234567), 2);
190
191 vo0p0 = vfmaq_lane_f16(vo0p0, vi2x9ABCDEFG, vw89, 1);
192 vo1p0 = vfmaq_lane_f16(vo1p0, vi3x9ABCDEFG, vw89, 1);
193
194
195 float16x8_t vo0 = vmaxq_f16(vo0p0, vmin);
196 float16x8_t vo1 = vmaxq_f16(vo1p0, vmin);
197
198 vo0 = vminq_f16(vo0, vmax);
199 vo1 = vminq_f16(vo1, vmax);
200
201 if XNN_LIKELY(w == 8 * sizeof(__fp16)) {
202 vst1q_f16(o1, vo1); o1 += 8;
203 vst1q_f16(o0, vo0); o0 += 8;
204 } else {
205 float16x4_t vo1_lo = vget_low_f16(vo1);
206 float16x4_t vo0_lo = vget_low_f16(vo0);
207
208 if (w & (4 * sizeof(__fp16))) {
209 vst1_f16(o1, vo1_lo); o1 += 4;
210 vst1_f16(o0, vo0_lo); o0 += 4;
211
212 vo1_lo = vget_high_f16(vo1);
213 vo0_lo = vget_high_f16(vo0);
214 }
215 if (w & (2 * sizeof(__fp16))) {
216 vst1_lane_u32((void*) o1, vreinterpret_u32_f16(vo1_lo), 0); o1 += 2;
217 vst1_lane_u32((void*) o0, vreinterpret_u32_f16(vo0_lo), 0); o0 += 2;
218
219 vo0_lo = vext_f16(vo0_lo, vo0_lo, 2);
220 vo1_lo = vext_f16(vo1_lo, vo1_lo, 2);
221 }
222 if (w & (1 * sizeof(__fp16))) {
223 vst1_lane_f16(o1, vo1_lo, 0); o1 += 1;
224 vst1_lane_f16(o0, vo0_lo, 0); o0 += 1;
225 }
226 }
227 }
228
229 i0 = (const __fp16*) ((uintptr_t) i2 - input_decrement);
230 i1 = (const __fp16*) ((uintptr_t) i3 - input_decrement);
231 i2 = (const __fp16*) ((uintptr_t) i1 + input_width);
232 i3 = (const __fp16*) ((uintptr_t) i2 + input_width);
233
234 o0 = o1;
235 o1 = (__fp16*) ((uintptr_t) o0 + input_width);
236
237 output_height = doz(output_height, 2);
238 } while (output_height != 0);
239 }
240