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volk_8ic_s32f_deinterleave_real_32f.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_8ic_s32f_deinterleave_real_32f_a_H
#define INCLUDED_volk_8ic_s32f_deinterleave_real_32f_a_H
#include <inttypes.h>
#include <stdio.h>
#include <volk/volk_common.h>
#ifdef LV_HAVE_AVX2
#include <immintrin.h>
static inline void
volk_8ic_s32f_deinterleave_real_32f_a_avx2(float* iBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
unsigned int number = 0;
const unsigned int sixteenthPoints = num_points / 16;
__m256 iFloatValue;
const float iScalar = 1.0 / scalar;
__m256 invScalar = _mm256_set1_ps(iScalar);
__m256i complexVal, iIntVal;
int8_t* complexVectorPtr = (int8_t*)complexVector;
__m256i moveMask = _mm256_set_epi8(0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
14,
12,
10,
8,
6,
4,
2,
0,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
14,
12,
10,
8,
6,
4,
2,
0);
for (; number < sixteenthPoints; number++) {
complexVal = _mm256_load_si256((__m256i*)complexVectorPtr);
complexVectorPtr += 32;
complexVal = _mm256_shuffle_epi8(complexVal, moveMask);
iIntVal = _mm256_cvtepi8_epi32(_mm256_castsi256_si128(complexVal));
iFloatValue = _mm256_cvtepi32_ps(iIntVal);
iFloatValue = _mm256_mul_ps(iFloatValue, invScalar);
_mm256_store_ps(iBufferPtr, iFloatValue);
iBufferPtr += 8;
complexVal = _mm256_permute4x64_epi64(complexVal, 0b11000110);
iIntVal = _mm256_cvtepi8_epi32(_mm256_castsi256_si128(complexVal));
iFloatValue = _mm256_cvtepi32_ps(iIntVal);
iFloatValue = _mm256_mul_ps(iFloatValue, invScalar);
_mm256_store_ps(iBufferPtr, iFloatValue);
iBufferPtr += 8;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) * iScalar;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_AVX2 */
#ifdef LV_HAVE_SSE4_1
#include <smmintrin.h>
static inline void
volk_8ic_s32f_deinterleave_real_32f_a_sse4_1(float* iBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
unsigned int number = 0;
const unsigned int eighthPoints = num_points / 8;
__m128 iFloatValue;
const float iScalar = 1.0 / scalar;
__m128 invScalar = _mm_set_ps1(iScalar);
__m128i complexVal, iIntVal;
int8_t* complexVectorPtr = (int8_t*)complexVector;
__m128i moveMask = _mm_set_epi8(
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 14, 12, 10, 8, 6, 4, 2, 0);
for (; number < eighthPoints; number++) {
complexVal = _mm_load_si128((__m128i*)complexVectorPtr);
complexVectorPtr += 16;
complexVal = _mm_shuffle_epi8(complexVal, moveMask);
iIntVal = _mm_cvtepi8_epi32(complexVal);
iFloatValue = _mm_cvtepi32_ps(iIntVal);
iFloatValue = _mm_mul_ps(iFloatValue, invScalar);
_mm_store_ps(iBufferPtr, iFloatValue);
iBufferPtr += 4;
complexVal = _mm_srli_si128(complexVal, 4);
iIntVal = _mm_cvtepi8_epi32(complexVal);
iFloatValue = _mm_cvtepi32_ps(iIntVal);
iFloatValue = _mm_mul_ps(iFloatValue, invScalar);
_mm_store_ps(iBufferPtr, iFloatValue);
iBufferPtr += 4;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) * iScalar;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_SSE4_1 */
#ifdef LV_HAVE_SSE
#include <xmmintrin.h>
static inline void
volk_8ic_s32f_deinterleave_real_32f_a_sse(float* iBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
unsigned int number = 0;
const unsigned int quarterPoints = num_points / 4;
__m128 iValue;
const float iScalar = 1.0 / scalar;
__m128 invScalar = _mm_set_ps1(iScalar);
int8_t* complexVectorPtr = (int8_t*)complexVector;
__VOLK_ATTR_ALIGNED(16) float floatBuffer[4];
for (; number < quarterPoints; number++) {
floatBuffer[0] = (float)(*complexVectorPtr);
complexVectorPtr += 2;
floatBuffer[1] = (float)(*complexVectorPtr);
complexVectorPtr += 2;
floatBuffer[2] = (float)(*complexVectorPtr);
complexVectorPtr += 2;
floatBuffer[3] = (float)(*complexVectorPtr);
complexVectorPtr += 2;
iValue = _mm_load_ps(floatBuffer);
iValue = _mm_mul_ps(iValue, invScalar);
_mm_store_ps(iBufferPtr, iValue);
iBufferPtr += 4;
}
number = quarterPoints * 4;
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) * iScalar;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_SSE */
#ifdef LV_HAVE_GENERIC
static inline void
volk_8ic_s32f_deinterleave_real_32f_generic(float* iBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const int8_t* complexVectorPtr = (const int8_t*)complexVector;
float* iBufferPtr = iBuffer;
const float invScalar = 1.0 / scalar;
for (number = 0; number < num_points; number++) {
*iBufferPtr++ = ((float)(*complexVectorPtr++)) * invScalar;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_GENERIC */
#endif /* INCLUDED_volk_8ic_s32f_deinterleave_real_32f_a_H */
#ifndef INCLUDED_volk_8ic_s32f_deinterleave_real_32f_u_H
#define INCLUDED_volk_8ic_s32f_deinterleave_real_32f_u_H
#include <inttypes.h>
#include <stdio.h>
#include <volk/volk_common.h>
#ifdef LV_HAVE_AVX2
#include <immintrin.h>
static inline void
volk_8ic_s32f_deinterleave_real_32f_u_avx2(float* iBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
float* iBufferPtr = iBuffer;
unsigned int number = 0;
const unsigned int sixteenthPoints = num_points / 16;
__m256 iFloatValue;
const float iScalar = 1.0 / scalar;
__m256 invScalar = _mm256_set1_ps(iScalar);
__m256i complexVal, iIntVal;
__m128i hcomplexVal;
int8_t* complexVectorPtr = (int8_t*)complexVector;
__m256i moveMask = _mm256_set_epi8(0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
14,
12,
10,
8,
6,
4,
2,
0,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
0x80,
14,
12,
10,
8,
6,
4,
2,
0);
for (; number < sixteenthPoints; number++) {
complexVal = _mm256_loadu_si256((__m256i*)complexVectorPtr);
complexVectorPtr += 32;
complexVal = _mm256_shuffle_epi8(complexVal, moveMask);
hcomplexVal = _mm256_extracti128_si256(complexVal, 0);
iIntVal = _mm256_cvtepi8_epi32(hcomplexVal);
iFloatValue = _mm256_cvtepi32_ps(iIntVal);
iFloatValue = _mm256_mul_ps(iFloatValue, invScalar);
_mm256_storeu_ps(iBufferPtr, iFloatValue);
iBufferPtr += 8;
hcomplexVal = _mm256_extracti128_si256(complexVal, 1);
iIntVal = _mm256_cvtepi8_epi32(hcomplexVal);
iFloatValue = _mm256_cvtepi32_ps(iIntVal);
iFloatValue = _mm256_mul_ps(iFloatValue, invScalar);
_mm256_storeu_ps(iBufferPtr, iFloatValue);
iBufferPtr += 8;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) * iScalar;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_AVX2 */
#ifdef LV_HAVE_NEON
#include <arm_neon.h>
static inline void volk_8ic_s32f_deinterleave_real_32f_neon(float* iBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int eighth_points = num_points / 8;
float* iBufferPtr = iBuffer;
const int8_t* complexVectorPtr = (const int8_t*)complexVector;
const float invScalar = 1.0f / scalar;
float32x4_t vInvScalar = vdupq_n_f32(invScalar);
for (; number < eighth_points; number++) {
int8x8x2_t input = vld2_s8(complexVectorPtr);
complexVectorPtr += 16;
int16x8_t iShort = vmovl_s8(input.val[0]);
int32x4_t iInt0 = vmovl_s16(vget_low_s16(iShort));
int32x4_t iInt1 = vmovl_s16(vget_high_s16(iShort));
float32x4_t iFloat0 = vcvtq_f32_s32(iInt0);
float32x4_t iFloat1 = vcvtq_f32_s32(iInt1);
iFloat0 = vmulq_f32(iFloat0, vInvScalar);
iFloat1 = vmulq_f32(iFloat1, vInvScalar);
vst1q_f32(iBufferPtr, iFloat0);
vst1q_f32(iBufferPtr + 4, iFloat1);
iBufferPtr += 8;
}
number = eighth_points * 8;
for (; number < num_points; number++) {
*iBufferPtr++ = (float)(*complexVectorPtr++) * invScalar;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_NEON */
#ifdef LV_HAVE_RVV
#include <riscv_vector.h>
static inline void volk_8ic_s32f_deinterleave_real_32f_rvv(float* iBuffer,
const lv_8sc_t* complexVector,
const float scalar,
unsigned int num_points)
{
const uint16_t* in = (const uint16_t*)complexVector;
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, in += vl, iBuffer += vl) {
vl = __riscv_vsetvl_e16m4(n);
vuint16m4_t vc = __riscv_vle16_v_u16m4(in, vl);
vint8m2_t vr = __riscv_vreinterpret_i8m2(__riscv_vnsrl(vc, 0, vl));
vfloat32m8_t vrf = __riscv_vfwcvt_f(__riscv_vsext_vf2(vr, vl), vl);
__riscv_vse32(iBuffer, __riscv_vfmul(vrf, 1.0f / scalar, vl), vl);
}
}
#endif /*LV_HAVE_RVV*/
#endif /* INCLUDED_volk_8ic_s32f_deinterleave_real_32f_u_H */