aboutsummaryrefslogtreecommitdiff
path: root/src/core/NEON/kernels/arm_conv/pooling/kernels/sme_u8_nhwc_avg_generic_depthfirst/generic.cpp
blob: f0e7bbf5ccc88f3b0ce883fa79ccad99ee6cf6ef (plain)
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
/*
 * Copyright (c) 2022-2023 Arm Limited.
 *
 * SPDX-License-Identifier: MIT
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <cstdint>
#include <cstddef>
#include <cstring>
#include <cmath>


#if defined(ARM_COMPUTE_ENABLE_SME)

namespace arm_conv {
namespace pooling {

namespace {
  struct RescaleParams
  {
    int32_t multiplier, shift;
  };

  constexpr RescaleParams rescale_params[8] = {
    {0x40000000, -0},  // 1/2
    {0x55555556, -1},  // 1/3
    {0x40000000, -1},  // 1/4
    {0x66666666, -2},  // 1/5
    {0x55555556, -2},  // 1/6
    {0x49249249, -2},  // 1/7
    {0x40000000, -2},  // 1/8
    {0x71c71c72, -3},  // 1/9
  };
}

void sme_u8_nhwc_avg_generic_depthfirst_impl(
  const uint64_t window_cells,
  const uint64_t n_valid_cells,
  uint64_t n_channels,
  const uint8_t *const *const inptrs,
  uint8_t *outptr
)
{
  if (n_valid_cells == 1 && window_cells == 1)
  {
    // In this case, simply copy from the input to the output
    std::memcpy(outptr, *inptrs, n_channels);
    return;
  }

  // Compute (or look up) the rescale values
  int32_t shift_value = 0, rescale_value = 0;
  if (2 <= window_cells && window_cells <= 9)
  {
    auto &params = rescale_params[window_cells - 2];
    rescale_value = params.multiplier;
    shift_value = params.shift;
  }
  else
  {
    auto f_rescale_value = 1.0f / static_cast<float>(window_cells);

    shift_value = 0;
    while (f_rescale_value < 0.5f)
    {
      shift_value--;
      f_rescale_value *= 2.0f;
    }

    int64_t long_rescale_value = round(f_rescale_value * static_cast<float>(1ll << 31));
    if (long_rescale_value == (1ll << 31))
    {
      shift_value++;
      long_rescale_value >>= 1;
    }
    rescale_value = static_cast<int32_t>(long_rescale_value);
  }

  __asm__ __volatile__(
    ".inst 0xd503477f  // SMSTART ZA\n"
    "mov x27, #0x0\n"
    "cntb x26\n"
    "cntb x25, ALL, MUL #2\n"
    "cntb x24, ALL, MUL #3\n"
    "whilelt p4.b, x27, %x[n_channels]\n"
    "whilelt p3.b, x26, %x[n_channels]\n"
    "whilelt p2.b, x25, %x[n_channels]\n"
    "whilelt p1.b, x24, %x[n_channels]\n"
    "ptrue p0.b\n"
    "b.none 7f\n"
    "1:"  // 4-vectors of channels
    "lsr x23, %x[n_valid_cells], #0x1\n"
    "mov z15.s, #0x0\n"
    "mov z14.s, #0x0\n"
    "mov x22, %x[inptrs]\n"
    "mov z13.s, #0x0\n"
    "mov z12.s, #0x0\n"
    "mov z11.s, #0x0\n"
    "mov z10.s, #0x0\n"
    "mov z9.s, #0x0\n"
    "mov z8.s, #0x0\n"
    "mov z7.s, #0x0\n"
    "mov z6.s, #0x0\n"
    "mov z5.s, #0x0\n"
    "mov z4.s, #0x0\n"
    "mov z3.s, #0x0\n"
    "mov z2.s, #0x0\n"
    "mov z1.s, #0x0\n"
    "mov z0.s, #0x0\n"
    "cbz x23, 4f\n"
    "ldp x21, x20, [x22, #0x0]\n"
    "subs x23, x23, #0x1\n"
    "add x22, x22, #0x10\n"
    "ld1b { z31.b }, p4/Z, [x21, x27]\n"
    "ld1b { z30.b }, p4/Z, [x20, x27]\n"
    "ld1b { z29.b }, p3/Z, [x21, x26]\n"
    "ld1b { z28.b }, p3/Z, [x20, x26]\n"
    "ld1b { z27.b }, p2/Z, [x21, x25]\n"
    "ld1b { z26.b }, p2/Z, [x20, x25]\n"
    "ld1b { z25.b }, p1/Z, [x21, x24]\n"
    "ld1b { z24.b }, p1/Z, [x20, x24]\n"
    "beq 3f\n"
    "2:"  // 4-vectors of channels: 2 inputs loop
    ".inst 0x455e0bf7  // uaddlb z23.h, z31.b, z30.b\n"
    ".inst 0x455e0ff6  // uaddlt z22.h, z31.b, z30.b\n"
    "ldp x21, x20, [x22, #0x0]\n"
    "subs x23, x23, #0x1\n"
    ".inst 0x455c0bb5  // uaddlb z21.h, z29.b, z28.b\n"
    ".inst 0x455c0fb4  // uaddlt z20.h, z29.b, z28.b\n"
    "add x22, x22, #0x10\n"
    "ld1b { z31.b }, p4/Z, [x21, x27]\n"
    ".inst 0x455a0b73  // uaddlb z19.h, z27.b, z26.b\n"
    ".inst 0x455a0f72  // uaddlt z18.h, z27.b, z26.b\n"
    "ld1b { z30.b }, p4/Z, [x20, x27]\n"
    ".inst 0x45580b31  // uaddlb z17.h, z25.b, z24.b\n"
    ".inst 0x45580f30  // uaddlt z16.h, z25.b, z24.b\n"
    "ld1b { z29.b }, p3/Z, [x21, x26]\n"
    ".inst 0x459749ef  // uaddwb z15.s, z15.s, z23.h\n"
    ".inst 0x45974dce  // uaddwt z14.s, z14.s, z23.h\n"
    "ld1b { z28.b }, p3/Z, [x20, x26]\n"
    ".inst 0x459649ad  // uaddwb z13.s, z13.s, z22.h\n"
    ".inst 0x45964d8c  // uaddwt z12.s, z12.s, z22.h\n"
    "ld1b { z27.b }, p2/Z, [x21, x25]\n"
    ".inst 0x4595496b  // uaddwb z11.s, z11.s, z21.h\n"
    ".inst 0x45954d4a  // uaddwt z10.s, z10.s, z21.h\n"
    "ld1b { z26.b }, p2/Z, [x20, x25]\n"
    ".inst 0x45944929  // uaddwb z9.s, z9.s, z20.h\n"
    ".inst 0x45944d08  // uaddwt z8.s, z8.s, z20.h\n"
    "ld1b { z25.b }, p1/Z, [x21, x24]\n"
    ".inst 0x459348e7  // uaddwb z7.s, z7.s, z19.h\n"
    ".inst 0x45934cc6  // uaddwt z6.s, z6.s, z19.h\n"
    "ld1b { z24.b }, p1/Z, [x20, x24]\n"
    ".inst 0x459248a5  // uaddwb z5.s, z5.s, z18.h\n"
    ".inst 0x45924c84  // uaddwt z4.s, z4.s, z18.h\n"
    ".inst 0x45914863  // uaddwb z3.s, z3.s, z17.h\n"
    ".inst 0x45914c42  // uaddwt z2.s, z2.s, z17.h\n"
    ".inst 0x45904821  // uaddwb z1.s, z1.s, z16.h\n"
    ".inst 0x45904c00  // uaddwt z0.s, z0.s, z16.h\n"
    "bgt 2b\n"
    "3:"  // 4-vectors of channels: 2 inputs tail
    ".inst 0x455e0bf7  // uaddlb z23.h, z31.b, z30.b\n"
    ".inst 0x455e0ff6  // uaddlt z22.h, z31.b, z30.b\n"
    ".inst 0x455c0bb5  // uaddlb z21.h, z29.b, z28.b\n"
    ".inst 0x455c0fb4  // uaddlt z20.h, z29.b, z28.b\n"
    ".inst 0x455a0b73  // uaddlb z19.h, z27.b, z26.b\n"
    ".inst 0x455a0f72  // uaddlt z18.h, z27.b, z26.b\n"
    ".inst 0x45580b31  // uaddlb z17.h, z25.b, z24.b\n"
    ".inst 0x45580f30  // uaddlt z16.h, z25.b, z24.b\n"
    ".inst 0x459749ef  // uaddwb z15.s, z15.s, z23.h\n"
    ".inst 0x45974dce  // uaddwt z14.s, z14.s, z23.h\n"
    ".inst 0x459649ad  // uaddwb z13.s, z13.s, z22.h\n"
    ".inst 0x45964d8c  // uaddwt z12.s, z12.s, z22.h\n"
    ".inst 0x4595496b  // uaddwb z11.s, z11.s, z21.h\n"
    ".inst 0x45954d4a  // uaddwt z10.s, z10.s, z21.h\n"
    ".inst 0x45944929  // uaddwb z9.s, z9.s, z20.h\n"
    ".inst 0x45944d08  // uaddwt z8.s, z8.s, z20.h\n"
    ".inst 0x459348e7  // uaddwb z7.s, z7.s, z19.h\n"
    ".inst 0x45934cc6  // uaddwt z6.s, z6.s, z19.h\n"
    ".inst 0x459248a5  // uaddwb z5.s, z5.s, z18.h\n"
    ".inst 0x45924c84  // uaddwt z4.s, z4.s, z18.h\n"
    ".inst 0x45914863  // uaddwb z3.s, z3.s, z17.h\n"
    ".inst 0x45914c42  // uaddwt z2.s, z2.s, z17.h\n"
    ".inst 0x45904821  // uaddwb z1.s, z1.s, z16.h\n"
    ".inst 0x45904c00  // uaddwt z0.s, z0.s, z16.h\n"
    "4:"  // 4-vectors of channels: After loop
    "ands x21, %x[n_valid_cells], #0x1\n"
    "beq 6f\n"
    "5:"  // 4-vectors of channels: Single input loop
    "ldr x20, [x22], #0x8\n"
    "ld1b { z16.b }, p4/Z, [x20, x27]\n"
    ".inst 0x4508aa17  // ushllb z23.h, z16.b, #0x0\n"
    ".inst 0x4508ae16  // ushllt z22.h, z16.b, #0x0\n"
    "ld1b { z16.b }, p3/Z, [x20, x26]\n"
    ".inst 0x4508aa15  // ushllb z21.h, z16.b, #0x0\n"
    ".inst 0x4508ae14  // ushllt z20.h, z16.b, #0x0\n"
    "subs x21, x21, #0x1\n"
    "ld1b { z16.b }, p2/Z, [x20, x25]\n"
    ".inst 0x4508aa13  // ushllb z19.h, z16.b, #0x0\n"
    ".inst 0x4508ae12  // ushllt z18.h, z16.b, #0x0\n"
    "ld1b { z16.b }, p1/Z, [x20, x24]\n"
    ".inst 0x4508aa11  // ushllb z17.h, z16.b, #0x0\n"
    ".inst 0x4508ae10  // ushllt z16.h, z16.b, #0x0\n"
    ".inst 0x459749ef  // uaddwb z15.s, z15.s, z23.h\n"
    ".inst 0x45974dce  // uaddwt z14.s, z14.s, z23.h\n"
    ".inst 0x459649ad  // uaddwb z13.s, z13.s, z22.h\n"
    ".inst 0x45964d8c  // uaddwt z12.s, z12.s, z22.h\n"
    ".inst 0x4595496b  // uaddwb z11.s, z11.s, z21.h\n"
    ".inst 0x45954d4a  // uaddwt z10.s, z10.s, z21.h\n"
    ".inst 0x45944929  // uaddwb z9.s, z9.s, z20.h\n"
    ".inst 0x45944d08  // uaddwt z8.s, z8.s, z20.h\n"
    ".inst 0x459348e7  // uaddwb z7.s, z7.s, z19.h\n"
    ".inst 0x45934cc6  // uaddwt z6.s, z6.s, z19.h\n"
    ".inst 0x459248a5  // uaddwb z5.s, z5.s, z18.h\n"
    ".inst 0x45924c84  // uaddwt z4.s, z4.s, z18.h\n"
    ".inst 0x45914863  // uaddwb z3.s, z3.s, z17.h\n"
    ".inst 0x45914c42  // uaddwt z2.s, z2.s, z17.h\n"
    ".inst 0x45904821  // uaddwb z1.s, z1.s, z16.h\n"
    ".inst 0x45904c00  // uaddwt z0.s, z0.s, z16.h\n"
    "bgt 5b\n"
    "6:"  // 4-vectors of channels: Single input loop: End
    "ld1rw { z17.s }, p0/Z, [%x[rescale_ptr]]\n"
    ".inst 0x04b175ef  // sqdmulh z15.s, z15.s, z17.s\n"
    ".inst 0x04b175ce  // sqdmulh z14.s, z14.s, z17.s\n"
    ".inst 0x04b175ad  // sqdmulh z13.s, z13.s, z17.s\n"
    ".inst 0x04b1758c  // sqdmulh z12.s, z12.s, z17.s\n"
    "ld1rw { z16.s }, p0/Z, [%x[shift_ptr]]\n"
    ".inst 0x04b1756b  // sqdmulh z11.s, z11.s, z17.s\n"
    ".inst 0x04b1754a  // sqdmulh z10.s, z10.s, z17.s\n"
    ".inst 0x04b17529  // sqdmulh z9.s, z9.s, z17.s\n"
    ".inst 0x04b17508  // sqdmulh z8.s, z8.s, z17.s\n"
    ".inst 0x04b174e7  // sqdmulh z7.s, z7.s, z17.s\n"
    ".inst 0x04b174c6  // sqdmulh z6.s, z6.s, z17.s\n"
    ".inst 0x04b174a5  // sqdmulh z5.s, z5.s, z17.s\n"
    ".inst 0x04b17484  // sqdmulh z4.s, z4.s, z17.s\n"
    ".inst 0x04b17463  // sqdmulh z3.s, z3.s, z17.s\n"
    ".inst 0x04b17442  // sqdmulh z2.s, z2.s, z17.s\n"
    ".inst 0x04b17421  // sqdmulh z1.s, z1.s, z17.s\n"
    ".inst 0x04b17400  // sqdmulh z0.s, z0.s, z17.s\n"
    ".inst 0x4482820f  // srshl z15.s, p0/M, z15.s, z16.s\n"
    ".inst 0x4482820e  // srshl z14.s, p0/M, z14.s, z16.s\n"
    ".inst 0x4482820d  // srshl z13.s, p0/M, z13.s, z16.s\n"
    ".inst 0x4482820c  // srshl z12.s, p0/M, z12.s, z16.s\n"
    ".inst 0x4482820b  // srshl z11.s, p0/M, z11.s, z16.s\n"
    ".inst 0x4482820a  // srshl z10.s, p0/M, z10.s, z16.s\n"
    ".inst 0x44828209  // srshl z9.s, p0/M, z9.s, z16.s\n"
    ".inst 0x44828208  // srshl z8.s, p0/M, z8.s, z16.s\n"
    ".inst 0x44828207  // srshl z7.s, p0/M, z7.s, z16.s\n"
    ".inst 0x44828206  // srshl z6.s, p0/M, z6.s, z16.s\n"
    ".inst 0x44828205  // srshl z5.s, p0/M, z5.s, z16.s\n"
    ".inst 0x44828204  // srshl z4.s, p0/M, z4.s, z16.s\n"
    ".inst 0x44828203  // srshl z3.s, p0/M, z3.s, z16.s\n"
    ".inst 0x44828202  // srshl z2.s, p0/M, z2.s, z16.s\n"
    ".inst 0x44828201  // srshl z1.s, p0/M, z1.s, z16.s\n"
    ".inst 0x44828200  // srshl z0.s, p0/M, z0.s, z16.s\n"
    "mov z16.s, #0x0\n"
    "mov z19.s, #0xff\n"
    "smax z15.s, p0/M, z15.s, z16.s\n"
    "smax z14.s, p0/M, z14.s, z16.s\n"
    "smax z13.s, p0/M, z13.s, z16.s\n"
    "smax z12.s, p0/M, z12.s, z16.s\n"
    "smax z11.s, p0/M, z11.s, z16.s\n"
    "smax z10.s, p0/M, z10.s, z16.s\n"
    "smax z9.s, p0/M, z9.s, z16.s\n"
    "smax z8.s, p0/M, z8.s, z16.s\n"
    "smax z7.s, p0/M, z7.s, z16.s\n"
    "smax z6.s, p0/M, z6.s, z16.s\n"
    "smax z5.s, p0/M, z5.s, z16.s\n"
    "smax z4.s, p0/M, z4.s, z16.s\n"
    "smax z3.s, p0/M, z3.s, z16.s\n"
    "smax z2.s, p0/M, z2.s, z16.s\n"
    "smax z1.s, p0/M, z1.s, z16.s\n"
    "smax z0.s, p0/M, z0.s, z16.s\n"
    "smin z15.s, p0/M, z15.s, z19.s\n"
    "smin z14.s, p0/M, z14.s, z19.s\n"
    "trn1 z23.h, z15.h, z14.h\n"
    "smin z13.s, p0/M, z13.s, z19.s\n"
    "smin z12.s, p0/M, z12.s, z19.s\n"
    "trn1 z16.h, z13.h, z12.h\n"
    "smin z11.s, p0/M, z11.s, z19.s\n"
    "smin z10.s, p0/M, z10.s, z19.s\n"
    "trn1 z22.h, z11.h, z10.h\n"
    "smin z9.s, p0/M, z9.s, z19.s\n"
    "smin z8.s, p0/M, z8.s, z19.s\n"
    "trn1 z18.h, z9.h, z8.h\n"
    "smin z7.s, p0/M, z7.s, z19.s\n"
    "smin z6.s, p0/M, z6.s, z19.s\n"
    "trn1 z21.h, z7.h, z6.h\n"
    "smin z5.s, p0/M, z5.s, z19.s\n"
    "smin z4.s, p0/M, z4.s, z19.s\n"
    "trn1 z17.h, z5.h, z4.h\n"
    "smin z3.s, p0/M, z3.s, z19.s\n"
    "smin z2.s, p0/M, z2.s, z19.s\n"
    "trn1 z20.h, z3.h, z2.h\n"
    "smin z1.s, p0/M, z1.s, z19.s\n"
    "smin z0.s, p0/M, z0.s, z19.s\n"
    "trn1 z19.h, z1.h, z0.h\n"
    "trn1 z16.b, z23.b, z16.b\n"
    "trn1 z18.b, z22.b, z18.b\n"
    "st1b { z16.b }, p4, [%x[outptr], x27]\n"
    "incb x27, ALL, MUL #4\n"
    "trn1 z17.b, z21.b, z17.b\n"
    "trn1 z16.b, z20.b, z19.b\n"
    "st1b { z18.b }, p3, [%x[outptr], x26]\n"
    "incb x26, ALL, MUL #4\n"
    "st1b { z17.b }, p2, [%x[outptr], x25]\n"
    "incb x25, ALL, MUL #4\n"
    "st1b { z16.b }, p1, [%x[outptr], x24]\n"
    "incb x24, ALL, MUL #4\n"
    "whilelt p1.b, x24, %x[n_channels]\n"
    "b.any 1b\n"
    "7:"  // Single vector of channels
    "whilelt p4.b, x27, %x[n_channels]\n"
    "b.none 14f\n"
    "8:"  // Single vector of channels: Loop
    "lsr x23, %x[n_valid_cells], #0x1\n"
    "mov z15.s, #0x0\n"
    "mov z14.s, #0x0\n"
    "mov x22, %x[inptrs]\n"
    "mov z13.s, #0x0\n"
    "mov z12.s, #0x0\n"
    "cbz x23, 11f\n"
    "ldp x21, x20, [x22, #0x0]\n"
    "subs x23, x23, #0x1\n"
    "add x22, x22, #0x10\n"
    "ld1b { z31.b }, p4/Z, [x21, x27]\n"
    "ld1b { z30.b }, p4/Z, [x20, x27]\n"
    "beq 10f\n"
    "9:"  // Single vector of channels: Loop: 2 inputs loop
    ".inst 0x455e0bf1  // uaddlb z17.h, z31.b, z30.b\n"
    ".inst 0x455e0ff0  // uaddlt z16.h, z31.b, z30.b\n"
    "ldp x21, x20, [x22, #0x0]\n"
    "subs x23, x23, #0x1\n"
    ".inst 0x459149ef  // uaddwb z15.s, z15.s, z17.h\n"
    ".inst 0x45914dce  // uaddwt z14.s, z14.s, z17.h\n"
    "add x22, x22, #0x10\n"
    "ld1b { z31.b }, p4/Z, [x21, x27]\n"
    ".inst 0x459049ad  // uaddwb z13.s, z13.s, z16.h\n"
    ".inst 0x45904d8c  // uaddwt z12.s, z12.s, z16.h\n"
    "ld1b { z30.b }, p4/Z, [x20, x27]\n"
    "bgt 9b\n"
    "10:"  // Single vector of channels: Loop: 2 inputs tail
    ".inst 0x455e0bf1  // uaddlb z17.h, z31.b, z30.b\n"
    ".inst 0x455e0ff0  // uaddlt z16.h, z31.b, z30.b\n"
    ".inst 0x459149ef  // uaddwb z15.s, z15.s, z17.h\n"
    ".inst 0x45914dce  // uaddwt z14.s, z14.s, z17.h\n"
    ".inst 0x459049ad  // uaddwb z13.s, z13.s, z16.h\n"
    ".inst 0x45904d8c  // uaddwt z12.s, z12.s, z16.h\n"
    "11:"  // Single vector of channels: Loop: After loop
    "ands x21, %x[n_valid_cells], #0x1\n"
    "beq 13f\n"
    "12:"  // Single vector of channels: Loop: Single input loop
    "ldr x20, [x22], #0x8\n"
    "ld1b { z16.b }, p4/Z, [x20, x27]\n"
    ".inst 0x4508aa11  // ushllb z17.h, z16.b, #0x0\n"
    ".inst 0x4508ae10  // ushllt z16.h, z16.b, #0x0\n"
    "subs x21, x21, #0x1\n"
    ".inst 0x459149ef  // uaddwb z15.s, z15.s, z17.h\n"
    ".inst 0x45914dce  // uaddwt z14.s, z14.s, z17.h\n"
    ".inst 0x459049ad  // uaddwb z13.s, z13.s, z16.h\n"
    ".inst 0x45904d8c  // uaddwt z12.s, z12.s, z16.h\n"
    "bgt 12b\n"
    "13:"  // Single vector of channels: Loop: Single input loop: End
    "ld1rw { z16.s }, p0/Z, [%x[rescale_ptr]]\n"
    ".inst 0x04b075ef  // sqdmulh z15.s, z15.s, z16.s\n"
    ".inst 0x04b075ce  // sqdmulh z14.s, z14.s, z16.s\n"
    ".inst 0x04b075ad  // sqdmulh z13.s, z13.s, z16.s\n"
    ".inst 0x04b0758c  // sqdmulh z12.s, z12.s, z16.s\n"
    "ld1rw { z16.s }, p0/Z, [%x[shift_ptr]]\n"
    ".inst 0x4482820f  // srshl z15.s, p0/M, z15.s, z16.s\n"
    ".inst 0x4482820e  // srshl z14.s, p0/M, z14.s, z16.s\n"
    ".inst 0x4482820d  // srshl z13.s, p0/M, z13.s, z16.s\n"
    ".inst 0x4482820c  // srshl z12.s, p0/M, z12.s, z16.s\n"
    "mov z17.s, #0x0\n"
    "mov z16.s, #0xff\n"
    "smax z15.s, p0/M, z15.s, z17.s\n"
    "smax z14.s, p0/M, z14.s, z17.s\n"
    "smax z13.s, p0/M, z13.s, z17.s\n"
    "smax z12.s, p0/M, z12.s, z17.s\n"
    "smin z15.s, p0/M, z15.s, z16.s\n"
    "smin z14.s, p0/M, z14.s, z16.s\n"
    "trn1 z17.h, z15.h, z14.h\n"
    "smin z13.s, p0/M, z13.s, z16.s\n"
    "smin z12.s, p0/M, z12.s, z16.s\n"
    "trn1 z16.h, z13.h, z12.h\n"
    "trn1 z16.b, z17.b, z16.b\n"
    "st1b { z16.b }, p4, [%x[outptr], x27]\n"
    "incb x27\n"
    "whilelt p4.b, x27, %x[n_channels]\n"
    "b.any 8b\n"
    "14:"  // End
    ".inst 0xd503467f  // SMSTOP\n"
    :
    : [inptrs] "r" (inptrs), [n_channels] "r" (n_channels), [n_valid_cells] "r" (n_valid_cells), [outptr] "r" (outptr), [rescale_ptr] "r" (&rescale_value), [shift_ptr] "r" (&shift_value)
    : "cc", "memory", "p0", "p1", "p2", "p3", "p4", "p5", "p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", "x20", "x21", "x22", "x23", "x24", "x25", "x26", "x27", "z0", "z1", "z2", "z3", "z4", "z5", "z6", "z7", "z8", "z9", "z10", "z11", "z12", "z13", "z14", "z15", "z16", "z17", "z18", "z19", "z20", "z21", "z22", "z23", "z24", "z25", "z26", "z27", "z28", "z29", "z30", "z31"
  );
}

}  // namespace pooling
}  // namespace arm_conv

#endif  // defined(ARM_COMPUTE_ENABLE_SME)