1 // Copyright 2019 Google LLC
2 //
3 // This source code is licensed under the BSD-style license found in the
4 // LICENSE file in the root directory of this source tree.
5
6 #include <assert.h>
7
8 #include <arm_neon.h>
9
10 #include <xnnpack/pavgpool.h>
11
12
xnn_f32_pavgpool_minmax_ukernel_9p8x__neon_c4(size_t output_pixels,size_t kernel_elements,size_t channels,const float ** input,size_t input_offset,const float * zero,const float * multiplier,float * buffer,float * output,size_t input_increment,size_t output_increment,const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])13 void xnn_f32_pavgpool_minmax_ukernel_9p8x__neon_c4(
14 size_t output_pixels,
15 size_t kernel_elements,
16 size_t channels,
17 const float** input,
18 size_t input_offset,
19 const float* zero,
20 const float* multiplier,
21 float* buffer,
22 float* output,
23 size_t input_increment,
24 size_t output_increment,
25 const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
26 {
27 assert(output_pixels != 0);
28 assert(kernel_elements > 9);
29 assert(channels != 0);
30
31 const float32x4_t voutput_min = vld1q_dup_f32(¶ms->scalar.min);
32 const float32x4_t voutput_max = vld1q_dup_f32(¶ms->scalar.max);
33
34 do {
35 {
36 const float* i0 = *input++;
37 assert(i0 != NULL);
38 if XNN_UNPREDICTABLE(i0 != zero) {
39 i0 = (const float*) ((uintptr_t) i0 + input_offset);
40 }
41 const float* i1 = *input++;
42 assert(i1 != NULL);
43 if XNN_UNPREDICTABLE(i1 != zero) {
44 i1 = (const float*) ((uintptr_t) i1 + input_offset);
45 }
46 const float* i2 = *input++;
47 assert(i2 != NULL);
48 if XNN_UNPREDICTABLE(i2 != zero) {
49 i2 = (const float*) ((uintptr_t) i2 + input_offset);
50 }
51 const float* i3 = *input++;
52 assert(i3 != NULL);
53 if XNN_UNPREDICTABLE(i3 != zero) {
54 i3 = (const float*) ((uintptr_t) i3 + input_offset);
55 }
56 const float* i4 = *input++;
57 assert(i4 != NULL);
58 if XNN_UNPREDICTABLE(i4 != zero) {
59 i4 = (const float*) ((uintptr_t) i4 + input_offset);
60 }
61 const float* i5 = *input++;
62 assert(i5 != NULL);
63 if XNN_UNPREDICTABLE(i5 != zero) {
64 i5 = (const float*) ((uintptr_t) i5 + input_offset);
65 }
66 const float* i6 = *input++;
67 assert(i6 != NULL);
68 if XNN_UNPREDICTABLE(i6 != zero) {
69 i6 = (const float*) ((uintptr_t) i6 + input_offset);
70 }
71 const float* i7 = *input++;
72 assert(i7 != NULL);
73 if XNN_UNPREDICTABLE(i7 != zero) {
74 i7 = (const float*) ((uintptr_t) i7 + input_offset);
75 }
76 const float* i8 = *input++;
77 assert(i8 != NULL);
78 if XNN_UNPREDICTABLE(i8 != zero) {
79 i8 = (const float*) ((uintptr_t) i8 + input_offset);
80 }
81
82 float* b = buffer;
83 for (size_t c = 0; c < channels; c += 4) {
84 const float32x4_t vi0 = vld1q_f32(i0); i0 += 4;
85 const float32x4_t vi1 = vld1q_f32(i1); i1 += 4;
86 const float32x4_t vi2 = vld1q_f32(i2); i2 += 4;
87 const float32x4_t vi3 = vld1q_f32(i3); i3 += 4;
88 const float32x4_t vi4 = vld1q_f32(i4); i4 += 4;
89 const float32x4_t vi5 = vld1q_f32(i5); i5 += 4;
90 const float32x4_t vi6 = vld1q_f32(i6); i6 += 4;
91 const float32x4_t vi7 = vld1q_f32(i7); i7 += 4;
92 const float32x4_t vi8 = vld1q_f32(i8); i8 += 4;
93
94 const float32x4_t vsum01 = vaddq_f32(vi0, vi1);
95 const float32x4_t vsum23 = vaddq_f32(vi2, vi3);
96 const float32x4_t vsum45 = vaddq_f32(vi4, vi5);
97 const float32x4_t vsum67 = vaddq_f32(vi6, vi7);
98 const float32x4_t vsum018 = vaddq_f32(vsum01, vi8);
99 const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45);
100 const float32x4_t vsum01678 = vaddq_f32(vsum018, vsum67);
101 const float32x4_t vsum = vaddq_f32(vsum2345, vsum01678);
102
103 vst1q_f32(b, vsum); b += 4;
104 }
105 }
106
107 size_t k = kernel_elements;
108 for (k -= 9; k > 8; k -= 8) {
109 const float* i0 = *input++;
110 assert(i0 != NULL);
111 if XNN_UNPREDICTABLE(i0 != zero) {
112 i0 = (const float*) ((uintptr_t) i0 + input_offset);
113 }
114 const float* i1 = *input++;
115 assert(i1 != NULL);
116 if XNN_UNPREDICTABLE(i1 != zero) {
117 i1 = (const float*) ((uintptr_t) i1 + input_offset);
118 }
119 const float* i2 = *input++;
120 assert(i2 != NULL);
121 if XNN_UNPREDICTABLE(i2 != zero) {
122 i2 = (const float*) ((uintptr_t) i2 + input_offset);
123 }
124 const float* i3 = *input++;
125 assert(i3 != NULL);
126 if XNN_UNPREDICTABLE(i3 != zero) {
127 i3 = (const float*) ((uintptr_t) i3 + input_offset);
128 }
129 const float* i4 = *input++;
130 assert(i4 != NULL);
131 if XNN_UNPREDICTABLE(i4 != zero) {
132 i4 = (const float*) ((uintptr_t) i4 + input_offset);
133 }
134 const float* i5 = *input++;
135 assert(i5 != NULL);
136 if XNN_UNPREDICTABLE(i5 != zero) {
137 i5 = (const float*) ((uintptr_t) i5 + input_offset);
138 }
139 const float* i6 = *input++;
140 assert(i6 != NULL);
141 if XNN_UNPREDICTABLE(i6 != zero) {
142 i6 = (const float*) ((uintptr_t) i6 + input_offset);
143 }
144 const float* i7 = *input++;
145 assert(i7 != NULL);
146 if XNN_UNPREDICTABLE(i7 != zero) {
147 i7 = (const float*) ((uintptr_t) i7 + input_offset);
148 }
149
150 float* b = buffer;
151 for (size_t c = 0; c < channels; c += 4) {
152 const float32x4_t vi0 = vld1q_f32(i0); i0 += 4;
153 const float32x4_t vi1 = vld1q_f32(i1); i1 += 4;
154 const float32x4_t vi2 = vld1q_f32(i2); i2 += 4;
155 const float32x4_t vi3 = vld1q_f32(i3); i3 += 4;
156 const float32x4_t vi4 = vld1q_f32(i4); i4 += 4;
157 const float32x4_t vi5 = vld1q_f32(i5); i5 += 4;
158 const float32x4_t vi6 = vld1q_f32(i6); i6 += 4;
159 const float32x4_t vi7 = vld1q_f32(i7); i7 += 4;
160 const float32x4_t vacc = vld1q_f32(b);
161
162 const float32x4_t vsum01 = vaddq_f32(vi0, vi1);
163 const float32x4_t vsum23 = vaddq_f32(vi2, vi3);
164 const float32x4_t vsum45 = vaddq_f32(vi4, vi5);
165 const float32x4_t vsum67 = vaddq_f32(vi6, vi7);
166 const float32x4_t vsum01a = vaddq_f32(vsum01, vacc);
167 const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45);
168 const float32x4_t vsum0167a = vaddq_f32(vsum01a, vsum67);
169 const float32x4_t vsum = vaddq_f32(vsum2345, vsum0167a);
170
171 vst1q_f32(b, vsum); b += 4;
172 }
173 }
174
175 {
176 const float* i0 = input[0];
177 assert(i0 != NULL);
178 const float* i1 = input[1];
179 const float* i2 = input[2];
180 const float* i3 = input[3];
181 const float* i4 = input[4];
182 const float* i5 = input[5];
183 const float* i6 = input[6];
184 const float* i7 = input[7];
185 input = (const float**) ((uintptr_t) input + input_increment);
186 if (k < 2) {
187 i1 = zero;
188 }
189 assert(i1 != NULL);
190 if (k <= 2) {
191 i2 = zero;
192 }
193 assert(i2 != NULL);
194 if (k < 4) {
195 i3 = zero;
196 }
197 assert(i3 != NULL);
198 if (k <= 4) {
199 i4 = zero;
200 }
201 assert(i4 != NULL);
202 if (k < 6) {
203 i5 = zero;
204 }
205 assert(i5 != NULL);
206 if (k <= 6) {
207 i6 = zero;
208 }
209 assert(i6 != NULL);
210 if (k < 8) {
211 i7 = zero;
212 }
213 assert(i7 != NULL);
214 if XNN_UNPREDICTABLE(i0 != zero) {
215 i0 = (const float*) ((uintptr_t) i0 + input_offset);
216 }
217 if XNN_UNPREDICTABLE(i1 != zero) {
218 i1 = (const float*) ((uintptr_t) i1 + input_offset);
219 }
220 if XNN_UNPREDICTABLE(i2 != zero) {
221 i2 = (const float*) ((uintptr_t) i2 + input_offset);
222 }
223 if XNN_UNPREDICTABLE(i3 != zero) {
224 i3 = (const float*) ((uintptr_t) i3 + input_offset);
225 }
226 if XNN_UNPREDICTABLE(i4 != zero) {
227 i4 = (const float*) ((uintptr_t) i4 + input_offset);
228 }
229 if XNN_UNPREDICTABLE(i5 != zero) {
230 i5 = (const float*) ((uintptr_t) i5 + input_offset);
231 }
232 if XNN_UNPREDICTABLE(i6 != zero) {
233 i6 = (const float*) ((uintptr_t) i6 + input_offset);
234 }
235 if XNN_UNPREDICTABLE(i7 != zero) {
236 i7 = (const float*) ((uintptr_t) i7 + input_offset);
237 }
238
239 const float32x4_t vmultiplier = vld1q_dup_f32(multiplier); multiplier += 1;
240
241 size_t c = channels;
242 float* b = buffer;
243 while (c >= 4) {
244 const float32x4_t vi0 = vld1q_f32(i0); i0 += 4;
245 const float32x4_t vi1 = vld1q_f32(i1); i1 += 4;
246 const float32x4_t vi2 = vld1q_f32(i2); i2 += 4;
247 const float32x4_t vi3 = vld1q_f32(i3); i3 += 4;
248 const float32x4_t vi4 = vld1q_f32(i4); i4 += 4;
249 const float32x4_t vi5 = vld1q_f32(i5); i5 += 4;
250 const float32x4_t vi6 = vld1q_f32(i6); i6 += 4;
251 const float32x4_t vi7 = vld1q_f32(i7); i7 += 4;
252 const float32x4_t vacc = vld1q_f32(b); b += 4;
253
254 const float32x4_t vsum01 = vaddq_f32(vi0, vi1);
255 const float32x4_t vsum23 = vaddq_f32(vi2, vi3);
256 const float32x4_t vsum45 = vaddq_f32(vi4, vi5);
257 const float32x4_t vsum67 = vaddq_f32(vi6, vi7);
258 const float32x4_t vsum01a = vaddq_f32(vsum01, vacc);
259 const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45);
260 const float32x4_t vsum0167a = vaddq_f32(vsum01a, vsum67);
261 const float32x4_t vsum = vaddq_f32(vsum2345, vsum0167a);
262
263 float32x4_t vout = vmulq_f32(vsum, vmultiplier);
264 vout = vmaxq_f32(vout, voutput_min);
265 vout = vminq_f32(vout, voutput_max);
266
267 vst1q_f32(output, vout); output += 4;
268
269 c -= 4;
270 }
271 if (c != 0) {
272 const float32x4_t vi0 = vld1q_f32(i0);
273 const float32x4_t vi1 = vld1q_f32(i1);
274 const float32x4_t vi2 = vld1q_f32(i2);
275 const float32x4_t vi3 = vld1q_f32(i3);
276 const float32x4_t vi4 = vld1q_f32(i4);
277 const float32x4_t vi5 = vld1q_f32(i5);
278 const float32x4_t vi6 = vld1q_f32(i6);
279 const float32x4_t vi7 = vld1q_f32(i7);
280 const float32x4_t vacc = vld1q_f32(b);
281
282 const float32x4_t vsum01 = vaddq_f32(vi0, vi1);
283 const float32x4_t vsum23 = vaddq_f32(vi2, vi3);
284 const float32x4_t vsum45 = vaddq_f32(vi4, vi5);
285 const float32x4_t vsum67 = vaddq_f32(vi6, vi7);
286 const float32x4_t vsum01a = vaddq_f32(vsum01, vacc);
287 const float32x4_t vsum2345 = vaddq_f32(vsum23, vsum45);
288 const float32x4_t vsum0167a = vaddq_f32(vsum01a, vsum67);
289 const float32x4_t vsum = vaddq_f32(vsum2345, vsum0167a);
290
291 float32x4_t vout = vmulq_f32(vsum, vmultiplier);
292 vout = vmaxq_f32(vout, voutput_min);
293 vout = vminq_f32(vout, voutput_max);
294
295 float32x2_t vout_lo = vget_low_f32(vout);
296 if (c & 2) {
297 vst1_f32(output, vout_lo); output += 2;
298 vout_lo = vget_high_f32(vout);
299 }
300 if (c & 1) {
301 vst1_lane_f32(output, vout_lo, 0); output += 1;
302 }
303 }
304 }
305 output = (float*) ((uintptr_t) output + output_increment);
306 } while (--output_pixels != 0);
307 }
308