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simd_utils_avx512_float.h
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simd_utils_avx512_float.h
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/*
* Project : SIMD_Utils
* Version : 0.2.6
* Author : JishinMaster
* Licence : BSD-2
*/
#pragma once
#include <stdint.h>
#include "immintrin.h"
static inline v16sf log10512_ps(v16sf x)
{
v16sf invalid_mask = (v16sf) _mm512_movm_epi32(_mm512_cmp_ps_mask(x, _mm512_setzero_ps(), _CMP_LE_OS));
x = _mm512_max_ps(x, *(v16sf *) _ps512_min_norm_pos); /* cut off denormalized stuff */
/* get the exponent part */
v16sf e = _mm512_getexp_ps(x);
/* keep only the fractional part */
x = _mm512_and_ps(x, *(v16sf *) _ps512_inv_mant_mask);
x = _mm512_or_ps(x, *(v16sf *) _ps512_0p5);
__mmask16 kmask = _mm512_cmp_ps_mask(x, *(v16sf *) _ps512_cephes_SQRTHF, _CMP_LT_OS);
v16sf tmp = x;
#if 1
//instead of doing add 1 then sub 1, dot add 1 on condition, should be faster
__mmask16 knotmask = _knot_mask16(kmask);
e = _mm512_mask_add_ps(e, knotmask, e, *(v16sf *) _ps512_1);
#else
e = _mm512_add_ps(e, *(v16sf *) _ps512_1);
e = _mm512_mask_sub_ps(e, kmask, e, *(v16sf *) _ps512_1);
#endif
x = _mm512_sub_ps(x, *(v16sf *) _ps512_1);
x = _mm512_mask_add_ps(x, kmask, x, tmp);
v16sf z = _mm512_mul_ps(x, x);
v16sf y = _mm512_fmadd_ps_custom(*(v16sf *) _ps512_cephes_log_p0, x, *(v16sf *) _ps512_cephes_log_p1);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p2);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p3);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p4);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p5);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p6);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p7);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p8);
y = _mm512_mul_ps(y, x);
y = _mm512_mul_ps(y, z);
y = _mm512_fnmadd_ps_custom(z, *(v16sf *) _ps512_0p5, y);
// Could it be improved with more parallelism or would it worsen precision?
tmp = _mm512_add_ps(x, y);
z = _mm512_mul_ps(tmp, *(v16sf *) _ps512_cephes_L10EB);
z = _mm512_fmadd_ps_custom(y, *(v16sf *) _ps512_cephes_L10EA, z);
z = _mm512_fmadd_ps_custom(x, *(v16sf *) _ps512_cephes_L10EA, z);
z = _mm512_fmadd_ps_custom(e, *(v16sf *) _ps512_cephes_L102B, z);
x = _mm512_fmadd_ps_custom(e, *(v16sf *) _ps512_cephes_L102A, z);
x = _mm512_or_ps(x, invalid_mask); // negative arg will be NAN
return x;
}
static inline v16sf log2512_ps(v16sf x)
{
v16sf invalid_mask = (v16sf) _mm512_movm_epi32(_mm512_cmp_ps_mask(x, _mm512_setzero_ps(), _CMP_LE_OS));
x = _mm512_max_ps(x, *(v16sf *) _ps512_min_norm_pos); /* cut off denormalized stuff */
/* get the exponent part */
v16sf e = _mm512_getexp_ps(x);
/* keep only the fractional part */
x = _mm512_and_ps(x, *(v16sf *) _ps512_inv_mant_mask);
x = _mm512_or_ps(x, *(v16sf *) _ps512_0p5);
__mmask16 kmask = _mm512_cmp_ps_mask(x, *(v16sf *) _ps512_cephes_SQRTHF, _CMP_LT_OS);
v16sf tmp = x;
#if 1
//instead of doing add 1 then sub 1, dot add 1 on condition, should be faster
__mmask16 knotmask = _knot_mask16(kmask);
e = _mm512_mask_add_ps(e, knotmask, e, *(v16sf *) _ps512_1);
#else
e = _mm512_add_ps(e, *(v16sf *) _ps512_1);
e = _mm512_mask_sub_ps(e, kmask, e, *(v16sf *) _ps512_1);
#endif
x = _mm512_sub_ps(x, *(v16sf *) _ps512_1);
x = _mm512_mask_add_ps(x, kmask, x, tmp);
v16sf z = _mm512_mul_ps(x, x);
v16sf y = _mm512_fmadd_ps_custom(*(v16sf *) _ps512_cephes_log_p0, x, *(v16sf *) _ps512_cephes_log_p1);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p2);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p3);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p4);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p5);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p6);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p7);
y = _mm512_fmadd_ps_custom(y, x, *(v16sf *) _ps512_cephes_log_p8);
y = _mm512_mul_ps(y, x);
y = _mm512_mul_ps(y, z);
y = _mm512_fnmadd_ps_custom(z, *(v16sf *) _ps512_0p5, y);
// Could it be improved with more parallelism or would it worsen precision?
tmp = _mm512_add_ps(y, x);
z = _mm512_mul_ps(y, *(v16sf *) _ps512_cephes_LOG2EA);
z = _mm512_fmadd_ps_custom(x, *(v16sf *) _ps512_cephes_LOG2EA, z);
z = _mm512_add_ps(z, tmp);
x = _mm512_add_ps(z, e);
x = _mm512_or_ps(x, invalid_mask); // negative arg will be NAN
return x;
}
static inline void log10512f(float *src, float *dst, int len)
{
const v16sf invln10f = _mm512_set1_ps((float) INVLN10); //_mm512_broadcast_ss(&invln10f_mask);
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf src_tmp = log512_ps(_mm512_load_ps(src + i));
_mm512_store_ps(dst + i, _mm512_mul_ps(src_tmp, invln10f));
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf src_tmp = log512_ps(_mm512_loadu_ps(src + i));
_mm512_storeu_ps(dst + i, _mm512_mul_ps(src_tmp, invln10f));
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = log10f(src[i]);
}
}
static inline void log10512f_precise(float *src, float *dst, int len)
{
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf src_tmp = log10512_ps(_mm512_load_ps(src + i));
_mm512_store_ps(dst + i, src_tmp);
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf src_tmp = log10512_ps(_mm512_loadu_ps(src + i));
_mm512_storeu_ps(dst + i, src_tmp);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = log10f(src[i]);
}
}
static inline void log2512f(float *src, float *dst, int len)
{
const v16sf invln2f = _mm512_set1_ps((float) INVLN2);
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf src_tmp = log512_ps(_mm512_load_ps(src + i));
_mm512_store_ps(dst + i, _mm512_mul_ps(src_tmp, invln2f));
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf src_tmp = log512_ps(_mm512_loadu_ps(src + i));
_mm512_storeu_ps(dst + i, _mm512_mul_ps(src_tmp, invln2f));
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = log2f(src[i]);
}
}
static inline void log2512f_precise(float *src, float *dst, int len)
{
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf src_tmp = log2512_ps(_mm512_load_ps(src + i));
_mm512_store_ps(dst + i, src_tmp);
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf src_tmp = log2512_ps(_mm512_loadu_ps(src + i));
_mm512_storeu_ps(dst + i, src_tmp);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = log2f(src[i]);
}
}
static inline void ln512f(float *src, float *dst, int len)
{
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
_mm512_store_ps(dst + i, log512_ps(_mm512_load_ps(src + i)));
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
_mm512_storeu_ps(dst + i, log512_ps(_mm512_loadu_ps(src + i)));
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = logf(src[i]);
}
}
static inline void exp512f(float *src, float *dst, int len)
{
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
_mm512_store_ps(dst + i, exp512_ps(_mm512_load_ps(src + i)));
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
_mm512_storeu_ps(dst + i, exp512_ps(_mm512_loadu_ps(src + i)));
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = expf(src[i]);
}
}
static inline v16sf power_of_two512f(v16si b)
{
return _mm512_cvtepi32_ps(_mm512_sllv_epi32(*(v16si *) _pi32_512_1, b));
}
static inline v16sf cbrt512f_ps(v16sf xx)
{
v16sf e, rem;
//__mmask16 sign;
v16sf x, z;
v16sf sign;
x = xx;
// sign = _mm512_cmp_ps_mask(x, _mm512_setzero_ps(), _CMP_GT_OS);
sign = _mm512_and_ps(xx, *(v16sf *) _ps512_sign_mask);
x = _mm512_and_ps(x, *(v16sf *) _ps512_pos_sign_mask);
z = x;
/* extract power of 2, leaving
* mantissa between 0.5 and 1
*/
// x = frexpf(x, &e);
// solve problem for zero
v16si emm0 = _mm512_srli_epi32(_mm512_castps_si512(x), 23);
emm0 = _mm512_sub_epi32(emm0, *(v16si *) _pi32_512_0x7e);
e = _mm512_cvtepi32_ps(emm0);
x = _mm512_and_ps(x, *(v16sf *) _ps512_inv_mant_mask);
x = _mm512_or_ps(x, *(v16sf *) _ps512_0p5);
/* Approximate cube root of number between .5 and 1,
* peak relative error = 9.2e-6
*/
v16sf tmp;
tmp = _mm512_fmadd_ps_custom(*(v16sf *) _ps512_CBRTF_P0, x, *(v16sf *) _ps512_CBRTF_P1);
tmp = _mm512_fmadd_ps_custom(x, tmp, *(v16sf *) _ps512_CBRTF_P2);
tmp = _mm512_fmadd_ps_custom(x, tmp, *(v16sf *) _ps512_CBRTF_P3);
x = _mm512_fmadd_ps_custom(x, tmp, *(v16sf *) _ps512_CBRTF_P4);
/* exponent divided by 3 */
__mmask16 e_sign = _mm512_cmp_ps_mask(e, _mm512_setzero_ps(), _CMP_GE_OS);
e = _mm512_and_ps(e, *(v16sf *) _ps512_pos_sign_mask);
rem = e;
e = _mm512_mul_ps(e, *(v16sf *) _ps512_0p3);
e = _mm512_roundscale_ps(e, ROUNDTOZERO);
rem = _mm512_fnmadd_ps_custom(*(v16sf *) _ps512_3, e, rem);
v16sf mul_cst1 = _mm512_mask_blend_ps(e_sign, *(v16sf *) _ps512_cephes_invCBRT2, *(v16sf *) _ps512_cephes_CBRT2);
v16sf mul_cst2 = _mm512_mask_blend_ps(e_sign, *(v16sf *) _ps512_cephes_invCBRT4, *(v16sf *) _ps512_cephes_CBRT4);
v16si remi = _mm512_cvtps_epi32(rem); // rem integer
__mmask16 rem1 = _mm512_cmpeq_epi32_mask(remi, _mm512_set1_epi32(1));
__mmask16 rem2 = _mm512_cmpeq_epi32_mask(remi, _mm512_set1_epi32(2));
x = _mm512_mask_mul_ps(x, rem1, x, mul_cst1); // rem==1
x = _mm512_mask_mul_ps(x, rem2, x, mul_cst2); // rem==2
/* multiply by power of 2 */
// x = ldexpf(x, e);
v16sf cst = power_of_two512f(_mm512_cvtps_epi32(e));
// blend sign of e
tmp = _mm512_div_ps(x, cst);
x = _mm512_mask_mul_ps(tmp, e_sign, x, cst);
/* Newton iteration */
// x -= (x - (z / (x * x))) * 0.333333333333;
v16sf tmp2 = _mm512_mul_ps(x, x);
tmp2 = _mm512_div_ps(z, tmp2);
tmp2 = _mm512_sub_ps(x, tmp2);
x = _mm512_fnmadd_ps_custom(tmp2, *(v16sf *) _ps512_0p3, x);
// x = _mm512_mask_blend_ps(sign, _mm512_mul_ps(x, *(v16sf *) _ps512_min1), x);
x = _mm512_xor_ps(x, sign);
return x;
}
static inline void cbrt512f(float *src, float *dst, int len)
{
int stop_len = len / (AVX512_LEN_FLOAT);
stop_len *= (AVX512_LEN_FLOAT);
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf x = _mm512_load_ps(src + i);
v16sf dst_tmp = cbrt512f_ps(x);
_mm512_store_ps(dst + i, dst_tmp);
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf x = _mm512_loadu_ps(src + i);
v16sf dst_tmp = cbrt512f_ps(x);
_mm512_storeu_ps(dst + i, dst_tmp);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = cbrtf(src[i]);
}
}
static inline void fabs512f(float *src, float *dst, int len)
{
int stop_len = len / (2 * AVX512_LEN_FLOAT);
stop_len *= (2 * AVX512_LEN_FLOAT);
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf src_tmp = _mm512_load_ps(src + i);
v16sf src_tmp2 = _mm512_load_ps(src + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_and_ps(*(v16sf *) _ps512_pos_sign_mask, src_tmp);
v16sf dst_tmp2 = _mm512_and_ps(*(v16sf *) _ps512_pos_sign_mask, src_tmp2);
_mm512_store_ps(dst + i, dst_tmp);
_mm512_store_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
} else {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf src_tmp = _mm512_loadu_ps(src + i);
v16sf src_tmp2 = _mm512_loadu_ps(src + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_and_ps(*(v16sf *) _ps512_pos_sign_mask, src_tmp);
v16sf dst_tmp2 = _mm512_and_ps(*(v16sf *) _ps512_pos_sign_mask, src_tmp2);
_mm512_storeu_ps(dst + i, dst_tmp);
_mm512_storeu_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = fabsf(src[i]);
}
}
static inline void set512f(float *dst, float value, int len)
{
const v16sf tmp = _mm512_set1_ps(value); //_mm512_broadcast_ss(&value); //avx broadcast vs mm_set_ps?
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (isAligned((uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
_mm512_store_ps(dst + i, tmp);
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
_mm512_storeu_ps(dst + i, tmp);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = value;
}
}
static inline void zero512f(float *dst, int len)
{
const v16sf tmp = _mm512_setzero_ps();
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (isAligned((uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
_mm512_store_ps(dst + i, tmp);
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
_mm512_storeu_ps(dst + i, tmp);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = 0.0f;
}
}
static inline void copy512f(float *src, float *dst, int len)
{
int stop_len = len / (2 * AVX512_LEN_FLOAT);
stop_len *= (2 * AVX512_LEN_FLOAT);
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf src_tmp = _mm512_load_ps(src + i);
v16sf src_tmp2 = _mm512_load_ps(src + i + AVX512_LEN_FLOAT);
_mm512_store_ps(dst + i, src_tmp);
_mm512_store_ps(dst + i + AVX512_LEN_FLOAT, src_tmp2);
}
} else {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf src_tmp = _mm512_loadu_ps(src + i);
v16sf src_tmp2 = _mm512_loadu_ps(src + i + AVX512_LEN_FLOAT);
_mm512_storeu_ps(dst + i, src_tmp);
_mm512_storeu_ps(dst + i + AVX512_LEN_FLOAT, src_tmp2);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = src[i];
}
}
static inline void add512f(float *src1, float *src2, float *dst, int len)
{
int stop_len = len / (2 * AVX512_LEN_FLOAT);
stop_len *= (2 * AVX512_LEN_FLOAT);
if (areAligned3((uintptr_t) (src1), (uintptr_t) (src2), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf a = _mm512_load_ps(src1 + i);
v16sf b = _mm512_load_ps(src2 + i);
v16sf a2 = _mm512_load_ps(src1 + i + AVX512_LEN_FLOAT);
v16sf b2 = _mm512_load_ps(src2 + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_add_ps(a, b);
v16sf dst_tmp2 = _mm512_add_ps(a2, b2);
_mm512_store_ps(dst + i, dst_tmp);
_mm512_store_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
} else {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf a = _mm512_loadu_ps(src1 + i);
v16sf b = _mm512_loadu_ps(src2 + i);
v16sf a2 = _mm512_loadu_ps(src1 + i + AVX512_LEN_FLOAT);
v16sf b2 = _mm512_loadu_ps(src2 + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_add_ps(a, b);
v16sf dst_tmp2 = _mm512_add_ps(a2, b2);
_mm512_storeu_ps(dst + i, dst_tmp);
_mm512_storeu_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = src1[i] + src2[i];
}
}
static inline void mul512f(float *src1, float *src2, float *dst, int len)
{
int stop_len = len / (2 * AVX512_LEN_FLOAT);
stop_len *= (2 * AVX512_LEN_FLOAT);
if (areAligned3((uintptr_t) (src1), (uintptr_t) (src2), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf a = _mm512_load_ps(src1 + i);
v16sf b = _mm512_load_ps(src2 + i);
v16sf a2 = _mm512_load_ps(src1 + i + AVX512_LEN_FLOAT);
v16sf b2 = _mm512_load_ps(src2 + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_mul_ps(a, b);
v16sf dst_tmp2 = _mm512_mul_ps(a2, b2);
_mm512_store_ps(dst + i, dst_tmp);
_mm512_store_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
} else {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf a = _mm512_loadu_ps(src1 + i);
v16sf b = _mm512_loadu_ps(src2 + i);
v16sf a2 = _mm512_loadu_ps(src1 + i + AVX512_LEN_FLOAT);
v16sf b2 = _mm512_loadu_ps(src2 + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_mul_ps(a, b);
v16sf dst_tmp2 = _mm512_mul_ps(a2, b2);
_mm512_storeu_ps(dst + i, dst_tmp);
_mm512_storeu_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = src1[i] * src2[i];
}
}
static inline void sub512f(float *src1, float *src2, float *dst, int len)
{
int stop_len = len / (2 * AVX512_LEN_FLOAT);
stop_len *= (2 * AVX512_LEN_FLOAT);
if (areAligned3((uintptr_t) (src1), (uintptr_t) (src2), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf a = _mm512_load_ps(src1 + i);
v16sf b = _mm512_load_ps(src2 + i);
v16sf a2 = _mm512_load_ps(src1 + i + AVX512_LEN_FLOAT);
v16sf b2 = _mm512_load_ps(src2 + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_sub_ps(a, b);
v16sf dst_tmp2 = _mm512_sub_ps(a2, b2);
_mm512_store_ps(dst + i, dst_tmp);
_mm512_store_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
} else {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf a = _mm512_loadu_ps(src1 + i);
v16sf b = _mm512_loadu_ps(src2 + i);
v16sf a2 = _mm512_loadu_ps(src1 + i + AVX512_LEN_FLOAT);
v16sf b2 = _mm512_loadu_ps(src2 + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_sub_ps(a, b);
v16sf dst_tmp2 = _mm512_sub_ps(a2, b2);
_mm512_storeu_ps(dst + i, dst_tmp);
_mm512_storeu_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = src1[i] - src2[i];
}
}
static inline void addc512f(float *src, float value, float *dst, int len)
{
const v16sf tmp = _mm512_set1_ps(value); //_mm512_broadcast_ss(&value); //avx broadcast vs mm_set_ps?
int stop_len = len / (2 * AVX512_LEN_FLOAT);
stop_len *= (2 * AVX512_LEN_FLOAT);
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf a = _mm512_load_ps(src + i);
v16sf a2 = _mm512_load_ps(src + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_add_ps(a, tmp);
v16sf dst_tmp2 = _mm512_add_ps(a2, tmp);
_mm512_store_ps(dst + i, dst_tmp);
_mm512_store_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
} else {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf a = _mm512_loadu_ps(src + i);
v16sf a2 = _mm512_loadu_ps(src + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_add_ps(a, tmp);
v16sf dst_tmp2 = _mm512_add_ps(a2, tmp);
_mm512_storeu_ps(dst + i, dst_tmp);
_mm512_storeu_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = src[i] + value;
}
}
static inline void mulc512f(float *src, float value, float *dst, int len)
{
const v16sf tmp = _mm512_set1_ps(value); //_mm512_broadcast_ss(&value); //avx broadcast vs mm_set_ps?
int stop_len = len / (2 * AVX512_LEN_FLOAT);
stop_len *= (2 * AVX512_LEN_FLOAT);
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf src_tmp1 = _mm512_load_ps(src + i);
v16sf src_tmp2 = _mm512_load_ps(src + i + AVX512_LEN_FLOAT);
v16sf dst_tmp1 = _mm512_mul_ps(tmp, src_tmp1);
v16sf dst_tmp2 = _mm512_mul_ps(tmp, src_tmp2);
_mm512_store_ps(dst + i, dst_tmp1);
_mm512_store_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
} else {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf src_tmp1 = _mm512_loadu_ps(src + i);
v16sf src_tmp2 = _mm512_loadu_ps(src + i + AVX512_LEN_FLOAT);
v16sf dst_tmp1 = _mm512_mul_ps(tmp, src_tmp1);
v16sf dst_tmp2 = _mm512_mul_ps(tmp, src_tmp2);
_mm512_storeu_ps(dst + i, dst_tmp1);
_mm512_storeu_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = src[i] * value;
}
}
static inline void muladd512f(float *_a, float *_b, float *_c, float *dst, int len)
{
int stop_len = len / (2 * AVX512_LEN_FLOAT);
stop_len *= (2 * AVX512_LEN_FLOAT);
if (areAligned2((uintptr_t) (_a), (uintptr_t) (_b), AVX512_LEN_BYTES) &&
areAligned2((uintptr_t) (_c), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf a = _mm512_load_ps(_a + i);
v16sf b = _mm512_load_ps(_b + i);
v16sf c = _mm512_load_ps(_c + i);
v16sf a2 = _mm512_load_ps(_a + i + AVX512_LEN_FLOAT);
v16sf b2 = _mm512_load_ps(_b + i + AVX512_LEN_FLOAT);
v16sf c2 = _mm512_load_ps(_c + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_fmadd_ps_custom(a, b, c);
v16sf dst_tmp2 = _mm512_fmadd_ps_custom(a2, b2, c2);
_mm512_store_ps(dst + i, dst_tmp);
_mm512_store_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
} else {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16sf a = _mm512_loadu_ps(_a + i);
v16sf b = _mm512_loadu_ps(_b + i);
v16sf c = _mm512_loadu_ps(_c + i);
v16sf a2 = _mm512_loadu_ps(_a + i + AVX512_LEN_FLOAT);
v16sf b2 = _mm512_loadu_ps(_b + i + AVX512_LEN_FLOAT);
v16sf c2 = _mm512_loadu_ps(_c + i + AVX512_LEN_FLOAT);
v16sf dst_tmp = _mm512_fmadd_ps_custom(a, b, c);
v16sf dst_tmp2 = _mm512_fmadd_ps_custom(a2, b2, c2);
_mm512_storeu_ps(dst + i, dst_tmp);
_mm512_storeu_ps(dst + i + AVX512_LEN_FLOAT, dst_tmp2);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = (_a[i] * _b[i]) + _c[i];
}
}
static inline void mulcadd512f(float *_a, float _b, float *_c, float *dst, int len)
{
v16sf b = _mm512_set1_ps(_b);
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (areAligned3((uintptr_t) (_a), (uintptr_t) (_c), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf a = _mm512_load_ps(_a + i);
v16sf c = _mm512_load_ps(_c + i);
_mm512_store_ps(dst + i, _mm512_fmadd_ps_custom(a, b, c));
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf a = _mm512_loadu_ps(_a + i);
v16sf c = _mm512_loadu_ps(_c + i);
_mm512_storeu_ps(dst + i, _mm512_fmadd_ps_custom(a, b, c));
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = _a[i] * _b + _c[i];
}
}
static inline void mulcaddc512f(float *_a, float _b, float _c, float *dst, int len)
{
v16sf b = _mm512_set1_ps(_b);
v16sf c = _mm512_set1_ps(_c);
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (areAligned2((uintptr_t) (_a), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf a = _mm512_loadu_ps(_a + i);
_mm512_store_ps(dst + i, _mm512_fmadd_ps_custom(a, b, c));
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf a = _mm512_loadu_ps(_a + i);
_mm512_storeu_ps(dst + i, _mm512_fmadd_ps_custom(a, b, c));
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = _a[i] * _b + _c;
}
}
static inline void muladdc512f(float *_a, float *_b, float _c, float *dst, int len)
{
v16sf c = _mm512_set1_ps(_c);
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (areAligned3((uintptr_t) (_a), (uintptr_t) (_b), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf a = _mm512_load_ps(_a + i);
v16sf b = _mm512_load_ps(_b + i);
_mm512_store_ps(dst + i, _mm512_fmadd_ps_custom(a, b, c));
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
v16sf a = _mm512_loadu_ps(_a + i);
v16sf b = _mm512_loadu_ps(_b + i);
_mm512_storeu_ps(dst + i, _mm512_fmadd_ps_custom(a, b, c));
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = _a[i] * _b[i] + _c;
}
}
static inline void div512f(float *src1, float *src2, float *dst, int len)
{
int stop_len = len / AVX512_LEN_FLOAT;
stop_len *= AVX512_LEN_FLOAT;
if (areAligned3((uintptr_t) (src1), (uintptr_t) (src2), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
_mm512_store_ps(dst + i, _mm512_div_ps(_mm512_load_ps(src1 + i), _mm512_load_ps(src2 + i)));
}
} else {
for (int i = 0; i < stop_len; i += AVX512_LEN_FLOAT) {
_mm512_storeu_ps(dst + i, _mm512_div_ps(_mm512_loadu_ps(src1 + i), _mm512_loadu_ps(src2 + i)));
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = src1[i] / src2[i];
}
}
static inline void vectorSlope512f(float *dst, int len, float offset, float slope)
{
v16sf coef = _mm512_set_ps(15.0f * slope, 14.0f * slope, 13.0f * slope, 12.0f * slope,
11.0f * slope, 10.0f * slope, 9.0f * slope, 8.0f * slope,
7.0f * slope, 6.0f * slope, 5.0f * slope, 4.0f * slope,
3.0f * slope, 2.0f * slope, slope, 0.0f);
v16sf slope32_vec = _mm512_set1_ps(32.0f * slope);
v16sf curVal = _mm512_add_ps(_mm512_set1_ps(offset), coef);
v16sf curVal2 = _mm512_add_ps(_mm512_set1_ps(offset), coef);
curVal2 = _mm512_add_ps(curVal2, _mm512_set1_ps(16.0f * slope));
int stop_len = len / (2 * AVX512_LEN_FLOAT);
stop_len *= (2 * AVX512_LEN_FLOAT);
if (len >= 2*AVX512_LEN_FLOAT) {
if (isAligned((uintptr_t) (dst), AVX512_LEN_BYTES)) {
_mm512_store_ps(dst + 0, curVal);
_mm512_store_ps(dst + AVX512_LEN_FLOAT, curVal2);
} else {
_mm512_storeu_ps(dst + 0, curVal);
_mm512_storeu_ps(dst + AVX512_LEN_FLOAT, curVal2);
}
if (isAligned((uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 2 * AVX512_LEN_FLOAT; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
curVal = _mm512_add_ps(curVal, slope32_vec);
_mm512_store_ps(dst + i, curVal);
curVal2 = _mm512_add_ps(curVal2, slope32_vec);
_mm512_store_ps(dst + i + AVX512_LEN_FLOAT, curVal2);
}
} else {
for (int i = 2 * AVX512_LEN_FLOAT; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
curVal = _mm512_add_ps(curVal, slope32_vec);
_mm512_storeu_ps(dst + i, curVal);
curVal2 = _mm512_add_ps(curVal2, slope32_vec);
_mm512_storeu_ps(dst + i + AVX512_LEN_FLOAT, curVal2);
}
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = offset + slope * (float) i;
}
}
static inline void convertInt16ToFloat32_512(int16_t *src, float *dst, int len, int scale_factor)
{
int stop_len = len / (2 * AVX512_LEN_FLOAT);
stop_len *= (2 * AVX512_LEN_FLOAT);
float scale_fact_mult = 1.0f / (float) (1 << scale_factor);
v16sf scale_fact_vec = _mm512_set1_ps(scale_fact_mult);
v16si idx_lo = _mm512_set_epi16(15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10,
9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 0, 0);
v16si idx_hi = _mm512_set_epi16(31, 31, 30, 30, 29, 29, 28, 28, 27, 27, 26, 26, 25, 25, 24, 24,
23, 23, 22, 22, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 16, 16);
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16si vec = _mm512_load_si512((__m512i *) (src + i));
v16si low = _mm512_permutexvar_epi16(idx_lo, vec); // low 1 1 2 2 3 3 .. 15 15
v16si high = _mm512_permutexvar_epi16(idx_hi, vec); // high 16 16 17 17 .. 31 31
low = _mm512_srai_epi32(low, 0x10); // make low 1 -1 2 -1 3 -1 4 -4
high = _mm512_srai_epi32(high, 0x10); // make high 5 -1 6 -1 7 -1 8 -1
// convert the vector to float and scale it
v16sf floatlo = _mm512_mul_ps(_mm512_cvtepi32_ps(low), scale_fact_vec);
v16sf floathi = _mm512_mul_ps(_mm512_cvtepi32_ps(high), scale_fact_vec);
_mm512_store_ps(dst + i, floatlo);
_mm512_store_ps(dst + i + AVX512_LEN_FLOAT, floathi);
}
} else {
for (int i = 0; i < stop_len; i += 2 * AVX512_LEN_FLOAT) {
v16si vec = _mm512_loadu_si512((__m512i *) (src + i));
v16si low = _mm512_permutexvar_epi16(idx_lo, vec); // low 1 1 2 2 3 3 .. 15 15
v16si high = _mm512_permutexvar_epi16(idx_hi, vec); // high 16 16 17 17 .. 31 31
low = _mm512_srai_epi32(low, 0x10); // make low 1 -1 2 -1 3 -1 4 -4
high = _mm512_srai_epi32(high, 0x10); // make high 5 -1 6 -1 7 -1 8 -1
// convert the vector to float and scale it
v16sf floatlo = _mm512_mul_ps(_mm512_cvtepi32_ps(low), scale_fact_vec);
v16sf floathi = _mm512_mul_ps(_mm512_cvtepi32_ps(high), scale_fact_vec);
_mm512_storeu_ps(dst + i, floatlo);
_mm512_storeu_ps(dst + i + AVX512_LEN_FLOAT, floathi);
}
}
for (int i = stop_len; i < len; i++) {
dst[i] = (float) src[i] * scale_fact_mult;
}
}
static inline void convertFloat32ToU8_512(float *src, uint8_t *dst, int len, int rounding_mode, int scale_factor)
{
int stop_len = len / (4 * AVX512_LEN_FLOAT);
stop_len *= (4 * AVX512_LEN_FLOAT);
float scale_fact_mult = 1.0f / (float) (1 << scale_factor);
v16sf scale_fact_vec = _mm512_set1_ps(scale_fact_mult);
v16si idx = _mm512_set_epi32(15, 11, 7, 3, 14, 10, 6, 2, 13, 9, 5, 1, 12, 8, 4, 0);
int _mm_rounding_ori = _MM_GET_ROUNDING_MODE(); // save rounding mode
int rounding_ori = fegetround();
if (rounding_mode == RndZero) {
_MM_SET_ROUNDING_MODE(_MM_ROUND_TOWARD_ZERO); // rounding_vec = ROUNDTOZERO;
fesetround(FE_TOWARDZERO);
} else if (rounding_mode == RndNear){
_MM_SET_ROUNDING_MODE(_MM_ROUND_NEAREST); // rounding_vec = ROUNDTONEAREST;
fesetround(FE_TONEAREST);
}
if(rounding_mode != RndFinancial){
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 4 * AVX512_LEN_FLOAT) {
v16sf src_tmp1 = _mm512_load_ps(src + i);
v16sf src_tmp2 = _mm512_load_ps(src + i + AVX512_LEN_FLOAT);
v16sf src_tmp3 = _mm512_load_ps(src + i + 2 * AVX512_LEN_FLOAT);
v16sf src_tmp4 = _mm512_load_ps(src + i + 3 * AVX512_LEN_FLOAT);
v16sf tmp1 = _mm512_mul_ps(src_tmp1, scale_fact_vec);
v16sf tmp2 = _mm512_mul_ps(src_tmp2, scale_fact_vec);
v16sf tmp3 = _mm512_mul_ps(src_tmp3, scale_fact_vec);
v16sf tmp4 = _mm512_mul_ps(src_tmp4, scale_fact_vec);
v16si tmp1_int = _mm512_cvtps_epi32(tmp1);
v16si tmp2_int = _mm512_cvtps_epi32(tmp2);
v16si tmp3_int = _mm512_cvtps_epi32(tmp3);
v16si tmp4_int = _mm512_cvtps_epi32(tmp4);
v16si tmp5 = _mm512_packs_epi32(tmp1_int, tmp2_int);
v16si tmp6 = _mm512_packs_epi32(tmp3_int, tmp4_int);
v16si tmp7 = _mm512_packus_epi16(tmp5, tmp6);
tmp7 = _mm512_permutexvar_epi32(idx, tmp7);
_mm512_store_si512((__m512i *) (dst + i), tmp7);
}
} else {
for (int i = 0; i < stop_len; i += 4 * AVX512_LEN_FLOAT) {
v16sf src_tmp1 = _mm512_loadu_ps(src + i);
v16sf src_tmp2 = _mm512_loadu_ps(src + i + AVX512_LEN_FLOAT);
v16sf src_tmp3 = _mm512_loadu_ps(src + i + 2 * AVX512_LEN_FLOAT);
v16sf src_tmp4 = _mm512_loadu_ps(src + i + 3 * AVX512_LEN_FLOAT);
v16sf tmp1 = _mm512_mul_ps(src_tmp1, scale_fact_vec);
v16sf tmp2 = _mm512_mul_ps(src_tmp2, scale_fact_vec);
v16sf tmp3 = _mm512_mul_ps(src_tmp3, scale_fact_vec);
v16sf tmp4 = _mm512_mul_ps(src_tmp4, scale_fact_vec);
v16si tmp1_int = _mm512_cvtps_epi32(tmp1);
v16si tmp2_int = _mm512_cvtps_epi32(tmp2);
v16si tmp3_int = _mm512_cvtps_epi32(tmp3);
v16si tmp4_int = _mm512_cvtps_epi32(tmp4);
v16si tmp5 = _mm512_packs_epi32(tmp1_int, tmp2_int);
v16si tmp6 = _mm512_packs_epi32(tmp3_int, tmp4_int);
v16si tmp7 = _mm512_packus_epi16(tmp5, tmp6);
tmp7 = _mm512_permutexvar_epi32(idx, tmp7);
_mm512_storeu_si512((__m512i *) (dst + i), tmp7);
}
}
} else{
if (areAligned2((uintptr_t) (src), (uintptr_t) (dst), AVX512_LEN_BYTES)) {
for (int i = 0; i < stop_len; i += 4 * AVX512_LEN_FLOAT) {
v16sf src_tmp1 = _mm512_load_ps(src + i);
v16sf src_tmp2 = _mm512_load_ps(src + i + AVX512_LEN_FLOAT);
v16sf src_tmp3 = _mm512_load_ps(src + i + 2 * AVX512_LEN_FLOAT);
v16sf src_tmp4 = _mm512_load_ps(src + i + 3 * AVX512_LEN_FLOAT);
v16sf tmp1 = _mm512_mul_ps(src_tmp1, scale_fact_vec);
v16sf tmp2 = _mm512_mul_ps(src_tmp2, scale_fact_vec);
v16sf tmp3 = _mm512_mul_ps(src_tmp3, scale_fact_vec);
v16sf tmp4 = _mm512_mul_ps(src_tmp4, scale_fact_vec);
v16sf spe1 = _mm512_and_ps(tmp1, *(v16sf*)_ps512_sign_mask);
spe1 = _mm512_or_ps(spe1,*(v16sf*)_ps512_mid_mask);
tmp1 = _mm512_add_ps(tmp1, spe1);
v16sf spe2 = _mm512_and_ps(tmp2, *(v16sf*)_ps512_sign_mask);
spe2 = _mm512_or_ps(spe2,*(v16sf*)_ps512_mid_mask);
tmp2 = _mm512_add_ps(tmp2, spe2);
v16sf spe3 = _mm512_and_ps(tmp3, *(v16sf*)_ps512_sign_mask);
spe3 = _mm512_or_ps(spe3,*(v16sf*)_ps512_mid_mask);
tmp3 = _mm512_add_ps(tmp3, spe3);
v16sf spe4 = _mm512_and_ps(tmp4, *(v16sf*)_ps512_sign_mask);
spe4 = _mm512_or_ps(spe4,*(v16sf*)_ps512_mid_mask);
tmp4 = _mm512_add_ps(tmp4, spe4);
tmp1 = _mm512_roundscale_ps(tmp1, ROUNDTOZERO);
tmp2 = _mm512_roundscale_ps(tmp2, ROUNDTOZERO);
tmp3 = _mm512_roundscale_ps(tmp3, ROUNDTOZERO);
tmp4 = _mm512_roundscale_ps(tmp4, ROUNDTOZERO);
v16si tmp1_int = _mm512_cvtps_epi32(tmp1);
v16si tmp2_int = _mm512_cvtps_epi32(tmp2);
v16si tmp3_int = _mm512_cvtps_epi32(tmp3);
v16si tmp4_int = _mm512_cvtps_epi32(tmp4);
v16si tmp5 = _mm512_packs_epi32(tmp1_int, tmp2_int);
v16si tmp6 = _mm512_packs_epi32(tmp3_int, tmp4_int);
v16si tmp7 = _mm512_packus_epi16(tmp5, tmp6);
tmp7 = _mm512_permutexvar_epi32(idx, tmp7);
_mm512_store_si512((__m512i *) (dst + i), tmp7);
}
} else {
for (int i = 0; i < stop_len; i += 4 * AVX512_LEN_FLOAT) {
v16sf src_tmp1 = _mm512_loadu_ps(src + i);
v16sf src_tmp2 = _mm512_loadu_ps(src + i + AVX512_LEN_FLOAT);
v16sf src_tmp3 = _mm512_loadu_ps(src + i + 2 * AVX512_LEN_FLOAT);
v16sf src_tmp4 = _mm512_loadu_ps(src + i + 3 * AVX512_LEN_FLOAT);
v16sf tmp1 = _mm512_mul_ps(src_tmp1, scale_fact_vec);
v16sf tmp2 = _mm512_mul_ps(src_tmp2, scale_fact_vec);
v16sf tmp3 = _mm512_mul_ps(src_tmp3, scale_fact_vec);
v16sf tmp4 = _mm512_mul_ps(src_tmp4, scale_fact_vec);
v16sf spe1 = _mm512_and_ps(tmp1, *(v16sf*)_ps512_sign_mask);
spe1 = _mm512_or_ps(spe1,*(v16sf*)_ps512_mid_mask);
tmp1 = _mm512_add_ps(tmp1, spe1);
v16sf spe2 = _mm512_and_ps(tmp2, *(v16sf*)_ps512_sign_mask);
spe2 = _mm512_or_ps(spe2,*(v16sf*)_ps512_mid_mask);
tmp2 = _mm512_add_ps(tmp2, spe2);
v16sf spe3 = _mm512_and_ps(tmp3, *(v16sf*)_ps512_sign_mask);
spe3 = _mm512_or_ps(spe3,*(v16sf*)_ps512_mid_mask);
tmp3 = _mm512_add_ps(tmp3, spe3);
v16sf spe4 = _mm512_and_ps(tmp4, *(v16sf*)_ps512_sign_mask);
spe4 = _mm512_or_ps(spe4,*(v16sf*)_ps512_mid_mask);
tmp4 = _mm512_add_ps(tmp4, spe4);
tmp1 = _mm512_roundscale_ps(tmp1, ROUNDTOZERO);
tmp2 = _mm512_roundscale_ps(tmp2, ROUNDTOZERO);
tmp3 = _mm512_roundscale_ps(tmp3, ROUNDTOZERO);
tmp4 = _mm512_roundscale_ps(tmp4, ROUNDTOZERO);
v16si tmp1_int = _mm512_cvtps_epi32(tmp1);
v16si tmp2_int = _mm512_cvtps_epi32(tmp2);
v16si tmp3_int = _mm512_cvtps_epi32(tmp3);
v16si tmp4_int = _mm512_cvtps_epi32(tmp4);
v16si tmp5 = _mm512_packs_epi32(tmp1_int, tmp2_int);
v16si tmp6 = _mm512_packs_epi32(tmp3_int, tmp4_int);
v16si tmp7 = _mm512_packus_epi16(tmp5, tmp6);
tmp7 = _mm512_permutexvar_epi32(idx, tmp7);
_mm512_storeu_si512((__m512i *) (dst + i), tmp7);
}
}
}
if (rounding_mode == RndFinancial) {
for (int i = stop_len; i < len; i++) {
float tmp = roundf(src[i] * scale_fact_mult);
dst[i] = (uint8_t) (tmp > 255.0f ? 255.0f : tmp); // round to nearest even with round(x/2)*2
}
} else {
// Default round toward zero
for (int i = stop_len; i < len; i++) {
float tmp = rintf(src[i] * scale_fact_mult);
dst[i] = (uint8_t) (tmp > 255.0f ? 255.0f : tmp);
}
_MM_SET_ROUNDING_MODE(_mm_rounding_ori); // restore previous rounding mode