1 // Auto-generated file. Do not edit!
2 // Template: src/qs8-f32-vcvt/avx512skx.c.in
3 // Generator: tools/xngen
4 //
5 // Copyright 2021 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/vcvt.h>
17
18
xnn_qu8_f32_vcvt_ukernel__avx512skx_x16(size_t n,const uint8_t * x,float * y,const union xnn_qu8_f32_cvt_params params[restrict XNN_MIN_ELEMENTS (1)])19 void xnn_qu8_f32_vcvt_ukernel__avx512skx_x16(
20 size_t n,
21 const uint8_t* x,
22 float* y,
23 const union xnn_qu8_f32_cvt_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
24 {
25 assert(n != 0);
26 assert(n % sizeof(uint8_t) == 0);
27 assert(x != NULL);
28 assert(y != NULL);
29
30 const __m512i vminus_zero_point = _mm512_load_si512(params->avx512.minus_zero_point);
31 const __m512 vscale = _mm512_load_ps(params->avx512.scale);
32 for (; n >= 16 * sizeof(uint8_t); n -= 16 * sizeof(uint8_t)) {
33 __m512i vx = _mm512_cvtepu8_epi32(_mm_loadu_si128((const __m128i*) x));
34 vx = _mm512_add_epi32(vx, vminus_zero_point);
35 x += 16;
36
37 __m512 vy = _mm512_cvtepi32_ps(vx);
38 vy = _mm512_mul_ps(vy, vscale);
39
40 _mm512_storeu_ps(y, vy);
41 y += 16;
42 }
43 if XNN_UNLIKELY(n != 0) {
44 assert(n >= 1 * sizeof(uint8_t));
45 assert(n <= 15 * sizeof(uint8_t));
46
47 // Prepare mask for valid elements (depends on n).
48 const __mmask16 vmask = _cvtu32_mask16((uint16_t) ((uint32_t) (UINT32_C(1) << n) - UINT32_C(1)));
49
50 __m512i vx = _mm512_cvtepu8_epi32(_mm_maskz_loadu_epi8(vmask, x));
51 vx = _mm512_add_epi32(vx, vminus_zero_point);
52
53 __m512 vy = _mm512_cvtepi32_ps(vx);
54 vy = _mm512_mul_ps(vy, vscale);
55
56 _mm512_mask_storeu_ps(y, vmask, vy);
57 }
58 }
59