File size: 18,379 Bytes
8b7c501
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
// Auto-generated file. Do not edit!
//   Template: src/f32-conv-hwc/3x3s2p1c3-neon-x1.c.in
//   Generator: tools/xngen
//
// Copyright 2020 Google LLC
//
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree.


#include <assert.h>

#include <arm_neon.h>

#include <xnnpack/conv.h>
#include <xnnpack/math.h>


void xnn_f32_conv_hwc_ukernel_3x3s2p1c3x4__aarch64_neonfma_2x1(
    size_t input_height,
    size_t input_width,
    size_t output_y_start,
    size_t output_y_end,
    const float* input,
    const float* zero,
    const float* weights,
    float* output,
    size_t input_padding_top,
    size_t output_channels,
    size_t output_height_stride,
    size_t output_width_stride,
    const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
{
  assert(input_width != 0);
  assert(output_y_end > output_y_start);
  assert(input_padding_top <= 1);
  assert(output_channels != 0);

  const size_t input_height_stride = input_width * 3 /* channels */ * sizeof(float);
  const size_t input_width_decrement = input_width * 3 /* channels */ * sizeof(float);
  const size_t output_width = (input_width + 1) / 2;
  const size_t output_channel_decrement = output_width * output_width_stride - 4 * sizeof(float);
  const size_t output_height_increment = output_height_stride * 2 - round_up_po2(output_channels, 4) * sizeof(float);

  // Adjustment for padding processed below
  const float* i0 = (const float*) ((uintptr_t) input +
    input_height_stride * (output_y_start * 2 /* vertical stride */ - input_padding_top));
  const float* i1 = (const float*) ((uintptr_t) i0 + input_height_stride);
  const float* i2 = (const float*) ((uintptr_t) i1 + input_height_stride);
  const float* i3 = (const float*) ((uintptr_t) i2 + input_height_stride);
  const float* i4 = (const float*) ((uintptr_t) i3 + input_height_stride);
  float* o0 = (float*) ((uintptr_t) output + output_height_stride * output_y_start);
  float* o1 = (float*) ((uintptr_t) o0 + output_height_stride);

  if XNN_UNPREDICTABLE(output_y_start < input_padding_top) {
    i0 = zero;
  }

  const float32x4_t vmin = vld1q_dup_f32(&params->scalar.min);
  const float32x4_t vmax = vld1q_dup_f32(&params->scalar.max);

  for (size_t output_y = output_y_start; output_y < output_y_end; output_y += 2) {
    const size_t input_y2 = output_y * 2 + 2 - input_padding_top;
    const size_t input_y4 = input_y2 + 2;
    if XNN_UNPREDICTABLE(input_y2 > input_height) {
      i1 = zero;
    }
    if XNN_UNPREDICTABLE(input_y2 >= input_height) {
      i2 = zero;
    }
    if XNN_UNPREDICTABLE(input_y4 > input_height) {
      i3 = zero;
    }
    if XNN_UNPREDICTABLE(input_y4 >= input_height) {
      i4 = zero;
    }
    if XNN_UNPREDICTABLE(output_y + 2 > output_y_end) {
      o1 = o0;
    }

    const float* w = weights;
    size_t c = output_channels;
    do {
      // viMx0 = ( iM0c2, iM0c1, iM0c0, --- )
      float32x4_t vi0x0 = vmovq_n_f32(0.0f);
      float32x4_t vi1x0 = vmovq_n_f32(0.0f);
      float32x4_t vi2x0 = vmovq_n_f32(0.0f);
      float32x4_t vi3x0 = vmovq_n_f32(0.0f);
      float32x4_t vi4x0 = vmovq_n_f32(0.0f);

      size_t iw = input_width;
      for (; iw >= 2; iw -= 2) {
        float32x4_t vo0c0123 = vld1q_f32(w);
        float32x4_t vo1c0123 = vo0c0123;

        const float32x4_t vk00c0x0123 = vld1q_f32(w + 4);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk00c0x0123, vget_low_f32(vi0x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk00c0x0123, vget_low_f32(vi2x0), 1);

        const float32x4_t vk10c0x0123 = vld1q_f32(w + 8);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk10c0x0123, vget_low_f32(vi1x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk10c0x0123, vget_low_f32(vi3x0), 1);

        const float32x4_t vk20c0x0123 = vld1q_f32(w + 12);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk20c0x0123, vget_low_f32(vi2x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk20c0x0123, vget_low_f32(vi4x0), 1);

        const float32x4_t vk00c1x0123 = vld1q_f32(w + 16);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk00c1x0123, vget_high_f32(vi0x0), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk00c1x0123, vget_high_f32(vi2x0), 0);

        const float32x4_t vk10c1x0123 = vld1q_f32(w + 20);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk10c1x0123, vget_high_f32(vi1x0), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk10c1x0123, vget_high_f32(vi3x0), 0);

        const float32x4_t vk20c1x0123 = vld1q_f32(w + 24);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk20c1x0123, vget_high_f32(vi2x0), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk20c1x0123, vget_high_f32(vi4x0), 0);

        const float32x4_t vk00c2x0123 = vld1q_f32(w + 28);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk00c2x0123, vget_high_f32(vi0x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk00c2x0123, vget_high_f32(vi2x0), 1);

        const float32x4_t vk10c2x0123 = vld1q_f32(w + 32);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk10c2x0123, vget_high_f32(vi1x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk10c2x0123, vget_high_f32(vi3x0), 1);

        const float32x4_t vk20c2x0123 = vld1q_f32(w + 36);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk20c2x0123, vget_high_f32(vi2x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk20c2x0123, vget_high_f32(vi4x0), 1);

        // viMx1 = ( iM2c0, iM1c2, iM1c1, iM1c0 )
        const float32x4_t vi0x1 = vld1q_f32(i0); i0 += 4;
        const float32x4_t vi1x1 = vld1q_f32(i1); i1 += 4;
        const float32x4_t vi2x1 = vld1q_f32(i2); i2 += 4;
        const float32x4_t vi3x1 = vld1q_f32(i3); i3 += 4;
        const float32x4_t vi4x1 = vld1q_f32(i4); i4 += 4;

        const float32x4_t vk01c0x0123 = vld1q_f32(w + 40);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk01c0x0123, vget_low_f32(vi0x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk01c0x0123, vget_low_f32(vi2x1), 0);

        const float32x4_t vk11c0x0123 = vld1q_f32(w + 44);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk11c0x0123, vget_low_f32(vi1x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk11c0x0123, vget_low_f32(vi3x1), 0);

        const float32x4_t vk21c0x0123 = vld1q_f32(w + 48);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk21c0x0123, vget_low_f32(vi2x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk21c0x0123, vget_low_f32(vi4x1), 0);

        const float32x4_t vk01c1x0123 = vld1q_f32(w + 52);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk01c1x0123, vget_low_f32(vi0x1), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk01c1x0123, vget_low_f32(vi2x1), 1);

        const float32x4_t vk11c1x0123 = vld1q_f32(w + 56);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk11c1x0123, vget_low_f32(vi1x1), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk11c1x0123, vget_low_f32(vi3x1), 1);

        const float32x4_t vk21c1x0123 = vld1q_f32(w + 60);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk21c1x0123, vget_low_f32(vi2x1), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk21c1x0123, vget_low_f32(vi4x1), 1);

        const float32x4_t vk01c2x0123 = vld1q_f32(w + 64);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk01c2x0123, vget_high_f32(vi0x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk01c2x0123, vget_high_f32(vi2x1), 0);

        const float32x4_t vk11c2x0123 = vld1q_f32(w + 68);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk11c2x0123, vget_high_f32(vi1x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk11c2x0123, vget_high_f32(vi3x1), 0);

        const float32x4_t vk21c2x0123 = vld1q_f32(w + 72);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk21c2x0123, vget_high_f32(vi2x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk21c2x0123, vget_high_f32(vi4x1), 0);

        const float32x4_t vk02c0x0123 = vld1q_f32(w + 76);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk02c0x0123, vget_high_f32(vi0x1), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk02c0x0123, vget_high_f32(vi2x1), 1);

        const float32x4_t vk12c0x0123 = vld1q_f32(w + 80);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk12c0x0123, vget_high_f32(vi1x1), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk12c0x0123, vget_high_f32(vi3x1), 1);

        const float32x4_t vk22c0x0123 = vld1q_f32(w + 84);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk22c0x0123, vget_high_f32(vi2x1), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk22c0x0123, vget_high_f32(vi4x1), 1);

        // viMx2 = ( iM2c2, iM2c1 )
        const float32x2_t vi0x2 = vld1_f32(i0); i0 += 2;
        const float32x2_t vi1x2 = vld1_f32(i1); i1 += 2;
        const float32x2_t vi2x2 = vld1_f32(i2); i2 += 2;
        const float32x2_t vi3x2 = vld1_f32(i3); i3 += 2;
        const float32x2_t vi4x2 = vld1_f32(i4); i4 += 2;

        const float32x4_t vk02c1x0123 = vld1q_f32(w + 88);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk02c1x0123, vi0x2, 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk02c1x0123, vi2x2, 0);

        const float32x4_t vk12c1x0123 = vld1q_f32(w + 92);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk12c1x0123, vi1x2, 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk12c1x0123, vi3x2, 0);

        const float32x4_t vk22c1x0123 = vld1q_f32(w + 96);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk22c1x0123, vi2x2, 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk22c1x0123, vi4x2, 0);

        const float32x4_t vk02c2x0123 = vld1q_f32(w + 100);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk02c2x0123, vi0x2, 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk02c2x0123, vi2x2, 1);

        const float32x4_t vk12c2x0123 = vld1q_f32(w + 104);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk12c2x0123, vi1x2, 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk12c2x0123, vi3x2, 1);

        const float32x4_t vk22c2x0123 = vld1q_f32(w + 108);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk22c2x0123, vi2x2, 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk22c2x0123, vi4x2, 1);

        vi0x0 = vcombine_f32(vget_high_f32(vi0x1), vi0x2);
        vi1x0 = vcombine_f32(vget_high_f32(vi1x1), vi1x2);
        vi2x0 = vcombine_f32(vget_high_f32(vi2x1), vi2x2);
        vi3x0 = vcombine_f32(vget_high_f32(vi3x1), vi3x2);
        vi4x0 = vcombine_f32(vget_high_f32(vi4x1), vi4x2);


        vo0c0123 = vmaxq_f32(vo0c0123, vmin);
        vo1c0123 = vmaxq_f32(vo1c0123, vmin);

        vo0c0123 = vminq_f32(vo0c0123, vmax);
        vo1c0123 = vminq_f32(vo1c0123, vmax);

        if XNN_LIKELY(c >= 4) {
          vst1q_f32(o1, vo1c0123);
          o1 = (float*) ((uintptr_t) o1 + output_width_stride);
          vst1q_f32(o0, vo0c0123);
          o0 = (float*) ((uintptr_t) o0 + output_width_stride);
        } else {
          float* o0_tmp = o0;
          float* o1_tmp = o1;
          float32x2_t vo0c01 = vget_low_f32(vo0c0123);
          float32x2_t vo1c01 = vget_low_f32(vo1c0123);
          if (c & 2) {
            vst1_f32(o1_tmp, vo1c01); o1_tmp += 2;
            vo1c01 = vget_high_f32(vo1c0123);
            vst1_f32(o0_tmp, vo0c01); o0_tmp += 2;
            vo0c01 = vget_high_f32(vo0c0123);
          }
          if (c & 1) {
            vst1_lane_f32(o1_tmp, vo1c01, 0);
            vst1_lane_f32(o0_tmp, vo0c01, 0);
          }

          o0 = (float*) ((uintptr_t) o0 + output_width_stride);
          o1 = (float*) ((uintptr_t) o1 + output_width_stride);
        }
      }
      assert(iw < 2);
      if XNN_UNLIKELY(iw & 1) {
        float32x4_t vo0c0123 = vld1q_f32(w);
        float32x4_t vo1c0123 = vo0c0123;

        const float32x4_t vk00c0x0123 = vld1q_f32(w + 4);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk00c0x0123, vget_low_f32(vi0x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk00c0x0123, vget_low_f32(vi2x0), 1);

        const float32x4_t vk10c0x0123 = vld1q_f32(w + 8);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk10c0x0123, vget_low_f32(vi1x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk10c0x0123, vget_low_f32(vi3x0), 1);

        const float32x4_t vk20c0x0123 = vld1q_f32(w + 12);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk20c0x0123, vget_low_f32(vi2x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk20c0x0123, vget_low_f32(vi4x0), 1);

        const float32x4_t vk00c1x0123 = vld1q_f32(w + 16);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk00c1x0123, vget_high_f32(vi0x0), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk00c1x0123, vget_high_f32(vi2x0), 0);

        const float32x4_t vk10c1x0123 = vld1q_f32(w + 20);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk10c1x0123, vget_high_f32(vi1x0), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk10c1x0123, vget_high_f32(vi3x0), 0);

        const float32x4_t vk20c1x0123 = vld1q_f32(w + 24);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk20c1x0123, vget_high_f32(vi2x0), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk20c1x0123, vget_high_f32(vi4x0), 0);

        const float32x4_t vk00c2x0123 = vld1q_f32(w + 28);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk00c2x0123, vget_high_f32(vi0x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk00c2x0123, vget_high_f32(vi2x0), 1);

        const float32x4_t vk10c2x0123 = vld1q_f32(w + 32);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk10c2x0123, vget_high_f32(vi1x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk10c2x0123, vget_high_f32(vi3x0), 1);

        const float32x4_t vk20c2x0123 = vld1q_f32(w + 36);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk20c2x0123, vget_high_f32(vi2x0), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk20c2x0123, vget_high_f32(vi4x0), 1);

        // viMx1 = ( iM2c0, iM1c2, iM1c1, iM1c0 )
        const float32x4_t vi0x1 = vld1q_f32(i0); i0 += 3;
        const float32x4_t vi1x1 = vld1q_f32(i1); i1 += 3;
        const float32x4_t vi2x1 = vld1q_f32(i2); i2 += 3;
        const float32x4_t vi3x1 = vld1q_f32(i3); i3 += 3;
        const float32x4_t vi4x1 = vld1q_f32(i4); i4 += 3;

        const float32x4_t vk01c0x0123 = vld1q_f32(w + 40);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk01c0x0123, vget_low_f32(vi0x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk01c0x0123, vget_low_f32(vi2x1), 0);

        const float32x4_t vk11c0x0123 = vld1q_f32(w + 44);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk11c0x0123, vget_low_f32(vi1x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk11c0x0123, vget_low_f32(vi3x1), 0);

        const float32x4_t vk21c0x0123 = vld1q_f32(w + 48);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk21c0x0123, vget_low_f32(vi2x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk21c0x0123, vget_low_f32(vi4x1), 0);

        const float32x4_t vk01c1x0123 = vld1q_f32(w + 52);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk01c1x0123, vget_low_f32(vi0x1), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk01c1x0123, vget_low_f32(vi2x1), 1);

        const float32x4_t vk11c1x0123 = vld1q_f32(w + 56);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk11c1x0123, vget_low_f32(vi1x1), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk11c1x0123, vget_low_f32(vi3x1), 1);

        const float32x4_t vk21c1x0123 = vld1q_f32(w + 60);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk21c1x0123, vget_low_f32(vi2x1), 1);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk21c1x0123, vget_low_f32(vi4x1), 1);

        const float32x4_t vk01c2x0123 = vld1q_f32(w + 64);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk01c2x0123, vget_high_f32(vi0x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk01c2x0123, vget_high_f32(vi2x1), 0);

        const float32x4_t vk11c2x0123 = vld1q_f32(w + 68);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk11c2x0123, vget_high_f32(vi1x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk11c2x0123, vget_high_f32(vi3x1), 0);

        const float32x4_t vk21c2x0123 = vld1q_f32(w + 72);

        vo0c0123 = vfmaq_lane_f32(vo0c0123, vk21c2x0123, vget_high_f32(vi2x1), 0);
        vo1c0123 = vfmaq_lane_f32(vo1c0123, vk21c2x0123, vget_high_f32(vi4x1), 0);


        vo0c0123 = vmaxq_f32(vo0c0123, vmin);
        vo1c0123 = vmaxq_f32(vo1c0123, vmin);

        vo0c0123 = vminq_f32(vo0c0123, vmax);
        vo1c0123 = vminq_f32(vo1c0123, vmax);

        if XNN_LIKELY(c >= 4) {
          vst1q_f32(o1, vo1c0123);
          o1 = (float*) ((uintptr_t) o1 + output_width_stride);
          vst1q_f32(o0, vo0c0123);
          o0 = (float*) ((uintptr_t) o0 + output_width_stride);
        } else {
          float* o0_tmp = o0;
          float* o1_tmp = o1;
          float32x2_t vo0c01 = vget_low_f32(vo0c0123);
          float32x2_t vo1c01 = vget_low_f32(vo1c0123);
          if (c & 2) {
            vst1_f32(o1_tmp, vo1c01); o1_tmp += 2;
            vo1c01 = vget_high_f32(vo1c0123);
            vst1_f32(o0_tmp, vo0c01); o0_tmp += 2;
            vo0c01 = vget_high_f32(vo0c0123);
          }
          if (c & 1) {
            vst1_lane_f32(o1_tmp, vo1c01, 0);
            vst1_lane_f32(o0_tmp, vo0c01, 0);
          }
          o0 = (float*) ((uintptr_t) o0 + output_width_stride);
          o1 = (float*) ((uintptr_t) o1 + output_width_stride);
        }
      }
      // Move output pointers back to the position of the first pixel in a row,
      // and forward to the next block of output channels
      o0 = (float*) ((uintptr_t) o0 - output_channel_decrement);
      o1 = (float*) ((uintptr_t) o1 - output_channel_decrement);
      // Revert input pointers to the position of the first pixel in a row
      i0 = (const float*) ((uintptr_t) i0 - input_width_decrement);
      i1 = (const float*) ((uintptr_t) i1 - input_width_decrement);
      i2 = (const float*) ((uintptr_t) i2 - input_width_decrement);
      i3 = (const float*) ((uintptr_t) i3 - input_width_decrement);
      i4 = (const float*) ((uintptr_t) i4 - input_width_decrement);
      // Move to the block of weights for the next 4 output channels
      w += 112;
      c = doz(c, 4);
    } while (c != 0);
    // Move output pointers back to the position of the first channel, and forward to the next block of rows
    o0 = (float*) ((uintptr_t) o0 + output_height_increment);
    o1 = (float*) ((uintptr_t) o1 + output_height_increment);
    // Move input pointers forward to the next four rows
    i0 = i4;
    i1 = (const float*) ((uintptr_t) i0 + input_height_stride);
    i2 = (const float*) ((uintptr_t) i1 + input_height_stride);
    i3 = (const float*) ((uintptr_t) i2 + input_height_stride);
    i4 = (const float*) ((uintptr_t) i3 + input_height_stride);
  }
}