1 // Auto-generated file. Do not edit!
2 // Template: src/f16-vclamp/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/common.h>
15 #include <xnnpack/intrinsics-polyfill.h>
16 #include <xnnpack/vunary.h>
17
18
xnn_f16_vclamp_ukernel__f16c_x16(size_t n,const void * restrict x_ptr,void * restrict y_ptr,const union xnn_f16_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_f16_vclamp_ukernel__f16c_x16(
20 size_t n,
21 const void* restrict x_ptr,
22 void* restrict y_ptr,
23 const union xnn_f16_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
24 {
25 assert(n != 0);
26 assert(n % sizeof(uint16_t) == 0);
27 assert(x_ptr != NULL);
28 assert(y_ptr != NULL);
29
30 const uint16_t* x = (const uint16_t*) x_ptr;
31 uint16_t* y = (uint16_t*) y_ptr;
32
33 const __m256 vy_min = _mm256_load_ps(params->avx.min);
34 const __m256 vy_max = _mm256_load_ps(params->avx.max);
35
36 for (; n >= 16 * sizeof(uint16_t); n -= 16 * sizeof(uint16_t)) {
37 __m256 vacc01234567 = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) x));
38 __m256 vacc89ABCDEF = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) (x + 8)));
39 x += 16;
40
41 vacc01234567 = _mm256_max_ps(vacc01234567, vy_min);
42 vacc89ABCDEF = _mm256_max_ps(vacc89ABCDEF, vy_min);
43
44 vacc01234567 = _mm256_min_ps(vacc01234567, vy_max);
45 vacc89ABCDEF = _mm256_min_ps(vacc89ABCDEF, vy_max);
46
47 _mm_storeu_si128((__m128i*) y, _mm256_cvtps_ph(vacc01234567, _MM_FROUND_NO_EXC));
48 _mm_storeu_si128((__m128i*) (y + 8), _mm256_cvtps_ph(vacc89ABCDEF, _MM_FROUND_NO_EXC));
49 y += 16;
50 }
51 for (; n >= 8 * sizeof(uint16_t); n -= 8 * sizeof(uint16_t)) {
52 __m256 vacc = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) x));
53 x += 8;
54 vacc = _mm256_max_ps(vacc, vy_min);
55 vacc = _mm256_min_ps(vacc, vy_max);
56 _mm_storeu_si128((__m128i*) y, _mm256_cvtps_ph(vacc, _MM_FROUND_NO_EXC));
57 y += 8;
58 }
59 if XNN_UNLIKELY(n != 0) {
60 __m256 vacc = _mm256_cvtph_ps(_mm_loadu_si128((const __m128i*) x));
61 vacc = _mm256_max_ps(vacc, vy_min);
62 vacc = _mm256_min_ps(vacc, vy_max);
63
64 __m128i vh = _mm256_cvtps_ph(vacc, _MM_FROUND_NO_EXC);
65 if (n & (4 * sizeof(uint16_t))) {
66 _mm_storel_epi64((__m128i*) y, vh);
67 vh = _mm_unpackhi_epi64(vh, vh);
68 y += 4;
69 }
70 if (n & (2 * sizeof(uint16_t))) {
71 _mm_storeu_si32(y, vh);
72 vh = _mm_srli_epi64(vh, 32);
73 y += 2;
74 }
75 if (n & (1 * sizeof(uint16_t))) {
76 *y = _mm_extract_epi16(vh, 0);
77 }
78 }
79 }
80