Loading...
Searching...
No Matches
volk_32f_s32f_x2_clamp_32f.h
Go to the documentation of this file.
/* -*- c++ -*- */
/*
* Copyright 2023 Magnus Lundmark <magnuslundmark@gmail.com>
*
* This file is part of VOLK
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*/
#ifndef INCLUDED_volk_32fc_s32f_x2_clamp_32f_a_H
#define INCLUDED_volk_32fc_s32f_x2_clamp_32f_a_H
#ifdef LV_HAVE_GENERIC
static inline void volk_32f_s32f_x2_clamp_32f_generic(float* out,
const float* in,
const float min,
const float max,
unsigned int num_points)
{
unsigned int number = 0;
for (; number < num_points; number++) {
if (*in > max) {
*out = max;
} else if (*in < min) {
*out = min;
} else {
*out = *in;
}
in++;
out++;
}
}
#endif /* LV_HAVE_GENERIC */
#if LV_HAVE_AVX2
#include <immintrin.h>
static inline void volk_32f_s32f_x2_clamp_32f_a_avx2(float* out,
const float* in,
const float min,
const float max,
unsigned int num_points)
{
const __m256 vmin = _mm256_set1_ps(min);
const __m256 vmax = _mm256_set1_ps(max);
unsigned int number = 0;
unsigned int eighth_points = num_points / 8;
for (; number < eighth_points; number++) {
__m256 res = _mm256_load_ps(in);
__m256 max_mask = _mm256_cmp_ps(vmax, res, _CMP_LT_OS);
__m256 min_mask = _mm256_cmp_ps(res, vmin, _CMP_LT_OS);
res = _mm256_blendv_ps(res, vmax, max_mask);
res = _mm256_blendv_ps(res, vmin, min_mask);
_mm256_store_ps(out, res);
in += 8;
out += 8;
}
number = eighth_points * 8;
volk_32f_s32f_x2_clamp_32f_generic(out, in, min, max, num_points - number);
}
#endif /* LV_HAVE_AVX2 */
#if LV_HAVE_SSE4_1
#include <immintrin.h>
static inline void volk_32f_s32f_x2_clamp_32f_a_sse4_1(float* out,
const float* in,
const float min,
const float max,
unsigned int num_points)
{
const __m128 vmin = _mm_set1_ps(min);
const __m128 vmax = _mm_set1_ps(max);
unsigned int number = 0;
unsigned int quarter_points = num_points / 4;
for (; number < quarter_points; number++) {
__m128 res = _mm_load_ps(in);
__m128 max_mask = _mm_cmplt_ps(vmax, res);
__m128 min_mask = _mm_cmplt_ps(res, vmin);
res = _mm_blendv_ps(res, vmax, max_mask);
res = _mm_blendv_ps(res, vmin, min_mask);
_mm_store_ps(out, res);
in += 4;
out += 4;
}
number = quarter_points * 4;
volk_32f_s32f_x2_clamp_32f_generic(out, in, min, max, num_points - number);
}
#endif /* LV_HAVE_SSE4_1 */
#endif /* INCLUDED_volk_32fc_s32f_x2_clamp_32f_a_H */
#ifndef INCLUDED_volk_32fc_s32f_x2_clamp_32f_u_H
#define INCLUDED_volk_32fc_s32f_x2_clamp_32f_u_H
#if LV_HAVE_AVX2
#include <immintrin.h>
static inline void volk_32f_s32f_x2_clamp_32f_u_avx2(float* out,
const float* in,
const float min,
const float max,
unsigned int num_points)
{
const __m256 vmin = _mm256_set1_ps(min);
const __m256 vmax = _mm256_set1_ps(max);
unsigned int number = 0;
unsigned int eighth_points = num_points / 8;
for (; number < eighth_points; number++) {
__m256 res = _mm256_loadu_ps(in);
__m256 max_mask = _mm256_cmp_ps(vmax, res, _CMP_LT_OS);
__m256 min_mask = _mm256_cmp_ps(res, vmin, _CMP_LT_OS);
res = _mm256_blendv_ps(res, vmax, max_mask);
res = _mm256_blendv_ps(res, vmin, min_mask);
_mm256_storeu_ps(out, res);
in += 8;
out += 8;
}
number = eighth_points * 8;
volk_32f_s32f_x2_clamp_32f_generic(out, in, min, max, num_points - number);
}
#endif /* LV_HAVE_AVX2 */
#if LV_HAVE_SSE4_1
#include <immintrin.h>
static inline void volk_32f_s32f_x2_clamp_32f_u_sse4_1(float* out,
const float* in,
const float min,
const float max,
unsigned int num_points)
{
const __m128 vmin = _mm_set1_ps(min);
const __m128 vmax = _mm_set1_ps(max);
unsigned int number = 0;
unsigned int quarter_points = num_points / 4;
for (; number < quarter_points; number++) {
__m128 res = _mm_loadu_ps(in);
__m128 max_mask = _mm_cmplt_ps(vmax, res);
__m128 min_mask = _mm_cmplt_ps(res, vmin);
res = _mm_blendv_ps(res, vmax, max_mask);
res = _mm_blendv_ps(res, vmin, min_mask);
_mm_storeu_ps(out, res);
in += 4;
out += 4;
}
number = quarter_points * 4;
volk_32f_s32f_x2_clamp_32f_generic(out, in, min, max, num_points - number);
}
#endif /* LV_HAVE_SSE4_1 */
#ifdef LV_HAVE_NEON
#include <arm_neon.h>
static inline void volk_32f_s32f_x2_clamp_32f_neon(float* out,
const float* in,
const float min,
const float max,
unsigned int num_points)
{
const float32x4_t vmin = vdupq_n_f32(min);
const float32x4_t vmax = vdupq_n_f32(max);
unsigned int number = 0;
const unsigned int quarter_points = num_points / 4;
for (; number < quarter_points; number++) {
float32x4_t val = vld1q_f32(in);
val = vmaxq_f32(val, vmin);
val = vminq_f32(val, vmax);
vst1q_f32(out, val);
in += 4;
out += 4;
}
number = quarter_points * 4;
for (; number < num_points; number++) {
float val = *in++;
if (val < min)
val = min;
else if (val > max)
val = max;
*out++ = val;
}
}
#endif /* LV_HAVE_NEON */
#ifdef LV_HAVE_NEONV8
#include <arm_neon.h>
static inline void volk_32f_s32f_x2_clamp_32f_neonv8(float* out,
const float* in,
const float min,
const float max,
unsigned int num_points)
{
const float32x4_t vmin = vdupq_n_f32(min);
const float32x4_t vmax = vdupq_n_f32(max);
unsigned int number = 0;
const unsigned int eighth_points = num_points / 8;
for (; number < eighth_points; number++) {
float32x4_t val0 = vld1q_f32(in);
float32x4_t val1 = vld1q_f32(in + 4);
__VOLK_PREFETCH(in + 8);
val0 = vmaxq_f32(val0, vmin);
val1 = vmaxq_f32(val1, vmin);
val0 = vminq_f32(val0, vmax);
val1 = vminq_f32(val1, vmax);
vst1q_f32(out, val0);
vst1q_f32(out + 4, val1);
in += 8;
out += 8;
}
number = eighth_points * 8;
for (; number < num_points; number++) {
float val = *in++;
if (val < min)
val = min;
else if (val > max)
val = max;
*out++ = val;
}
}
#endif /* LV_HAVE_NEONV8 */
#ifdef LV_HAVE_RVV
#include <riscv_vector.h>
static inline void volk_32f_s32f_x2_clamp_32f_rvv(float* out,
const float* in,
const float min,
const float max,
unsigned int num_points)
{
vfloat32m8_t vmin = __riscv_vfmv_v_f_f32m8(min, __riscv_vsetvlmax_e32m8());
vfloat32m8_t vmax = __riscv_vfmv_v_f_f32m8(max, __riscv_vsetvlmax_e32m8());
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, in += vl, out += vl) {
vl = __riscv_vsetvl_e32m8(n);
vfloat32m8_t v = __riscv_vle32_v_f32m8(in, vl);
v = __riscv_vfmin(__riscv_vfmax(v, vmin, vl), vmax, vl);
__riscv_vse32(out, v, vl);
}
}
#endif /*LV_HAVE_RVV*/
#endif /* INCLUDED_volk_32fc_s32f_x2_clamp_32f_u_H */