1 // Auto-generated file. Do not edit!
2 // Template: src/f32-vlrelu/avx.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 <immintrin.h>
13
14 #include <xnnpack/common.h>
15 #include <xnnpack/vunary.h>
16
17
xnn_f32_vlrelu_ukernel__avx_x8(size_t n,const float * x,float * y,const union xnn_f32_lrelu_params params[restrict XNN_MIN_ELEMENTS (1)])18 void xnn_f32_vlrelu_ukernel__avx_x8(
19 size_t n,
20 const float* x,
21 float* y,
22 const union xnn_f32_lrelu_params params[restrict XNN_MIN_ELEMENTS(1)])
23 {
24 assert(n != 0);
25 assert(n % sizeof(float) == 0);
26
27 const __m256 vslope = _mm256_load_ps(params->avx.slope);
28 for (; n >= 8 * sizeof(float); n -= 8 * sizeof(float)) {
29 const __m256 vx01234567 = _mm256_loadu_ps(x);
30 x += 8;
31
32 __m256 vacc01234567 = _mm256_mul_ps(vx01234567, vslope);
33
34 vacc01234567 = _mm256_blendv_ps(vx01234567, vacc01234567, vx01234567);
35
36 _mm256_storeu_ps(y, vacc01234567);
37 y += 8;
38 }
39 if XNN_UNLIKELY(n != 0) {
40 assert(n >= 1 * sizeof(float));
41 assert(n <= 7 * sizeof(float));
42 const __m256i vmask = _mm256_loadu_si256((const __m256i*) ((uintptr_t) ¶ms->avx.mask_table[7] - n));
43
44 const __m256 vx = _mm256_maskload_ps(x, vmask);
45 __m256 vacc = _mm256_mul_ps(vx, vslope);
46 vacc = _mm256_blendv_ps(vx, vacc, vx);
47
48 __m128 vacc_lo = _mm256_castps256_ps128(vacc);
49 if (n & (4 * sizeof(float))) {
50 _mm_storeu_ps(y, vacc_lo);
51 vacc_lo = _mm256_extractf128_ps(vacc, 1);
52 y += 4;
53 }
54 if (n & (2 * sizeof(float))) {
55 _mm_storel_pi((__m64*) y, vacc_lo);
56 vacc_lo = _mm_movehl_ps(vacc_lo, vacc_lo);
57 y += 2;
58 }
59 if (n & (1 * sizeof(float))) {
60 _mm_store_ss(y, vacc_lo);
61 }
62 }
63 }
64