1 // Auto-generated file. Do not edit!
2 // Template: src/f32-vrnd/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/math.h>
16 #include <xnnpack/vunary.h>
17
18
xnn_f32_vrndne_ukernel__avx_x16(size_t n,const float * x,float * y,const union xnn_f32_rnd_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_f32_vrndne_ukernel__avx_x16(
20 size_t n,
21 const float* x,
22 float* y,
23 const union xnn_f32_rnd_params params[restrict XNN_MIN_ELEMENTS(1)])
24 {
25 assert(n != 0);
26 assert(n % sizeof(float) == 0);
27
28 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
29 const __m256 vx01234567 = _mm256_loadu_ps(x);
30 const __m256 vx89ABCDEF = _mm256_loadu_ps(x + 8);
31 x += 16;
32
33 const __m256 vy01234567 = _mm256_round_ps(vx01234567, _MM_FROUND_TO_NEAREST_INT | _MM_FROUND_NO_EXC);
34 const __m256 vy89ABCDEF = _mm256_round_ps(vx89ABCDEF, _MM_FROUND_TO_NEAREST_INT | _MM_FROUND_NO_EXC);
35
36 _mm256_storeu_ps(y, vy01234567);
37 _mm256_storeu_ps(y + 8, vy89ABCDEF);
38 y += 16;
39 }
40 for (; n >= 8 * sizeof(float); n -= 8 * sizeof(float)) {
41 const __m256 vx = _mm256_loadu_ps(x);
42 x += 8;
43
44 const __m256 vy = _mm256_round_ps(vx, _MM_FROUND_TO_NEAREST_INT | _MM_FROUND_NO_EXC);
45
46 _mm256_storeu_ps(y, vy);
47 y += 8;
48 }
49 if XNN_UNLIKELY(n != 0) {
50 assert(n >= 1 * sizeof(float));
51 assert(n <= 7 * sizeof(float));
52 const __m256i vmask = _mm256_loadu_si256((const __m256i*) ((uintptr_t) ¶ms->avx.mask_table[7] - n));
53
54 const __m256 vx = _mm256_maskload_ps(x, vmask);
55 const __m256 vy = _mm256_round_ps(vx, _MM_FROUND_TO_NEAREST_INT | _MM_FROUND_NO_EXC);
56
57 __m128 vy_lo = _mm256_castps256_ps128(vy);
58 if (n & (4 * sizeof(float))) {
59 _mm_storeu_ps(y, vy_lo);
60 vy_lo = _mm256_extractf128_ps(vy, 1);
61 y += 4;
62 }
63 if (n & (2 * sizeof(float))) {
64 _mm_storel_pi((__m64*) y, vy_lo);
65 vy_lo = _mm_movehl_ps(vy_lo, vy_lo);
66 y += 2;
67 }
68 if (n & (1 * sizeof(float))) {
69 _mm_store_ss(y, vy_lo);
70 }
71 }
72 }
73