1 // Auto-generated file. Do not edit!
2 // Template: src/f32-vlrelu/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/common.h>
15 #include <xnnpack/intrinsics-polyfill.h>
16 #include <xnnpack/vunary.h>
17
18
xnn_f32_vlrelu_ukernel__avx512f_x16(size_t n,const float * x,float * y,const union xnn_f32_lrelu_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_f32_vlrelu_ukernel__avx512f_x16(
20 size_t n,
21 const float* x,
22 float* y,
23 const union xnn_f32_lrelu_params params[restrict XNN_MIN_ELEMENTS(1)])
24 {
25 assert(n != 0);
26 assert(n % sizeof(float) == 0);
27
28 const __m512 vslope = _mm512_broadcast_f32x4(_mm_load_ps(params->sse.slope));
29 const __m512 vzero = _mm512_setzero_ps();
30
31 for (; n >= 16 * sizeof(float); n -= 16 * sizeof(float)) {
32 __m512 vacc0123456789ABCDEF = _mm512_loadu_ps(x);
33 x += 16;
34
35 const __mmask16 vsign0123456789ABCDEF = _mm512_cmp_ps_mask(vacc0123456789ABCDEF, vzero, _CMP_LT_OQ);
36
37 vacc0123456789ABCDEF = _mm512_mask_mul_ps(vacc0123456789ABCDEF, vsign0123456789ABCDEF, vacc0123456789ABCDEF, vslope);
38
39 _mm512_storeu_ps(y, vacc0123456789ABCDEF);
40 y += 16;
41 }
42 if XNN_UNLIKELY(n != 0) {
43 assert(n >= 1 * sizeof(float));
44 assert(n <= 15 * sizeof(float));
45 // Prepare mask for valid 32-bit elements (depends on n).
46 n >>= 2 /* log2(sizeof(float)) */;
47 const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1)));
48
49 __m512 vacc = _mm512_maskz_loadu_ps(vmask, x);
50 const __mmask16 vsign = _mm512_mask_cmp_ps_mask(vmask, vacc, vzero, _CMP_LT_OQ);
51 vacc = _mm512_mask_mul_ps(vacc, vsign, vacc, vslope);
52 _mm512_mask_storeu_ps(y, vmask, vacc);
53 }
54 }
55