1 // Auto-generated file. Do not edit!
2 // Template: src/f32-clamp/avx512f.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/clamp.h>
15 #include <xnnpack/common.h>
16 #include <xnnpack/intrinsics-polyfill.h>
17
18
xnn_f32_clamp_ukernel__avx512f_x32(size_t n,const float * x,float * y,const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_f32_clamp_ukernel__avx512f_x32(
20 size_t n,
21 const float* x,
22 float* y,
23 const union xnn_f32_minmax_params params[restrict XNN_MIN_ELEMENTS(1)])
24 {
25 assert(n != 0);
26 assert(n % sizeof(float) == 0);
27 assert(x != NULL);
28 assert(y != NULL);
29
30 const __m512 vy_min = _mm512_broadcast_f32x4(_mm_load_ps(params->sse.min));
31 const __m512 vy_max = _mm512_broadcast_f32x4(_mm_load_ps(params->sse.max));
32
33 for (; n >= 32 * sizeof(float); n -= 32 * sizeof(float)) {
34 __m512 vacc0123456789ABCDEF = _mm512_loadu_ps(x);
35 __m512 vaccGHIJKLMNOPQRSTUV = _mm512_loadu_ps(x + 16);
36 x += 32;
37
38 vacc0123456789ABCDEF = _mm512_max_ps(vacc0123456789ABCDEF, vy_min);
39 vaccGHIJKLMNOPQRSTUV = _mm512_max_ps(vaccGHIJKLMNOPQRSTUV, vy_min);
40
41 vacc0123456789ABCDEF = _mm512_min_ps(vacc0123456789ABCDEF, vy_max);
42 vaccGHIJKLMNOPQRSTUV = _mm512_min_ps(vaccGHIJKLMNOPQRSTUV, vy_max);
43
44 _mm512_storeu_ps(y, vacc0123456789ABCDEF);
45 _mm512_storeu_ps(y + 16, vaccGHIJKLMNOPQRSTUV);
46 y += 32;
47 }
48 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
49 __m512 vacc = _mm512_loadu_ps(x);
50 x += 16;
51
52 vacc = _mm512_max_ps(vacc, vy_min);
53 vacc = _mm512_min_ps(vacc, vy_max);
54
55 _mm512_storeu_ps(y, vacc);
56 y += 16;
57 }
58 if XNN_UNLIKELY(n != 0) {
59 assert(n >= 1 * sizeof(float));
60 assert(n <= 15 * sizeof(float));
61 // Prepare mask for valid 32-bit elements (depends on n).
62 n >>= 2 /* log2(sizeof(float)) */;
63 const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1)));
64
65 __m512 vacc = _mm512_maskz_loadu_ps(vmask, x);
66 vacc = _mm512_max_ps(vacc, vy_min);
67 vacc = _mm512_min_ps(vacc, vy_max);
68 _mm512_mask_storeu_ps(y, vmask, vacc);
69 }
70 }
71