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volk_32f_s32f_normalize.h
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/* -*- c++ -*- */
/*
* Copyright 2012, 2014 Free Software Foundation, Inc.
*
* This file is part of VOLK
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*/
#ifndef INCLUDED_volk_32f_s32f_normalize_a_H
#define INCLUDED_volk_32f_s32f_normalize_a_H
#include <inttypes.h>
#include <stdio.h>
#ifdef LV_HAVE_AVX
#include <immintrin.h>
static inline void volk_32f_s32f_normalize_a_avx(float* vecBuffer,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
float* inputPtr = vecBuffer;
const float invScalar = 1.0 / scalar;
__m256 vecScalar = _mm256_set1_ps(invScalar);
__m256 input1;
const uint64_t eighthPoints = num_points / 8;
for (; number < eighthPoints; number++) {
input1 = _mm256_load_ps(inputPtr);
input1 = _mm256_mul_ps(input1, vecScalar);
_mm256_store_ps(inputPtr, input1);
inputPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
*inputPtr *= invScalar;
inputPtr++;
}
}
#endif /* LV_HAVE_AVX */
#ifdef LV_HAVE_SSE
#include <xmmintrin.h>
static inline void volk_32f_s32f_normalize_a_sse(float* vecBuffer,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
float* inputPtr = vecBuffer;
const float invScalar = 1.0 / scalar;
__m128 vecScalar = _mm_set_ps1(invScalar);
__m128 input1;
const uint64_t quarterPoints = num_points / 4;
for (; number < quarterPoints; number++) {
input1 = _mm_load_ps(inputPtr);
input1 = _mm_mul_ps(input1, vecScalar);
_mm_store_ps(inputPtr, input1);
inputPtr += 4;
}
number = quarterPoints * 4;
for (; number < num_points; number++) {
*inputPtr *= invScalar;
inputPtr++;
}
}
#endif /* LV_HAVE_SSE */
#ifdef LV_HAVE_GENERIC
static inline void volk_32f_s32f_normalize_generic(float* vecBuffer,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
float* inputPtr = vecBuffer;
const float invScalar = 1.0 / scalar;
for (number = 0; number < num_points; number++) {
*inputPtr *= invScalar;
inputPtr++;
}
}
#endif /* LV_HAVE_GENERIC */
#ifdef LV_HAVE_ORC
extern void volk_32f_s32f_normalize_a_orc_impl(float* dst,
float* src,
const float scalar,
int num_points);
static inline void volk_32f_s32f_normalize_u_orc(float* vecBuffer,
const float scalar,
unsigned int num_points)
{
float invscalar = 1.0 / scalar;
volk_32f_s32f_normalize_a_orc_impl(vecBuffer, vecBuffer, invscalar, num_points);
}
#endif /* LV_HAVE_GENERIC */
#endif /* INCLUDED_volk_32f_s32f_normalize_a_H */
#ifndef INCLUDED_volk_32f_s32f_normalize_u_H
#define INCLUDED_volk_32f_s32f_normalize_u_H
#include <inttypes.h>
#include <stdio.h>
#ifdef LV_HAVE_AVX
#include <immintrin.h>
static inline void volk_32f_s32f_normalize_u_avx(float* vecBuffer,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
float* inputPtr = vecBuffer;
const float invScalar = 1.0 / scalar;
__m256 vecScalar = _mm256_set1_ps(invScalar);
__m256 input1;
const uint64_t eighthPoints = num_points / 8;
for (; number < eighthPoints; number++) {
input1 = _mm256_loadu_ps(inputPtr);
input1 = _mm256_mul_ps(input1, vecScalar);
_mm256_storeu_ps(inputPtr, input1);
inputPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
*inputPtr *= invScalar;
inputPtr++;
}
}
#endif /* LV_HAVE_AVX */
#ifdef LV_HAVE_NEON
#include <arm_neon.h>
static inline void volk_32f_s32f_normalize_neon(float* vecBuffer,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
float* inputPtr = vecBuffer;
const float invScalar = 1.0f / scalar;
float32x4_t vInvScalar = vdupq_n_f32(invScalar);
const unsigned int quarter_points = num_points / 4;
for (; number < quarter_points; number++) {
float32x4_t input = vld1q_f32(inputPtr);
input = vmulq_f32(input, vInvScalar);
vst1q_f32(inputPtr, input);
inputPtr += 4;
}
number = quarter_points * 4;
for (; number < num_points; number++) {
*inputPtr++ *= invScalar;
}
}
#endif /* LV_HAVE_NEON */
#ifdef LV_HAVE_NEONV8
#include <arm_neon.h>
static inline void volk_32f_s32f_normalize_neonv8(float* vecBuffer,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
float* inputPtr = vecBuffer;
const float invScalar = 1.0f / scalar;
float32x4_t vInvScalar = vdupq_n_f32(invScalar);
const unsigned int eighth_points = num_points / 8;
for (; number < eighth_points; number++) {
float32x4_t input0 = vld1q_f32(inputPtr);
float32x4_t input1 = vld1q_f32(inputPtr + 4);
__VOLK_PREFETCH(inputPtr + 8);
input0 = vmulq_f32(input0, vInvScalar);
input1 = vmulq_f32(input1, vInvScalar);
vst1q_f32(inputPtr, input0);
vst1q_f32(inputPtr + 4, input1);
inputPtr += 8;
}
number = eighth_points * 8;
for (; number < num_points; number++) {
*inputPtr++ *= invScalar;
}
}
#endif /* LV_HAVE_NEONV8 */
#ifdef LV_HAVE_RVV
#include <riscv_vector.h>
static inline void
volk_32f_s32f_normalize_rvv(float* vecBuffer, const float scalar, unsigned int num_points)
{
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, vecBuffer += vl) {
vl = __riscv_vsetvl_e32m8(n);
vfloat32m8_t v = __riscv_vle32_v_f32m8(vecBuffer, vl);
__riscv_vse32(vecBuffer, __riscv_vfmul(v, 1.0f / scalar, vl), vl);
}
}
#endif /*LV_HAVE_RVV*/
#endif /* INCLUDED_volk_32f_s32f_normalize_u_H */