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volk_32f_x2_interleave_32fc.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_x2_interleave_32fc_a_H
#define INCLUDED_volk_32f_x2_interleave_32fc_a_H
#include <inttypes.h>
#include <stdio.h>
#ifdef LV_HAVE_AVX
#include <immintrin.h>
static inline void volk_32f_x2_interleave_32fc_a_avx(lv_32fc_t* complexVector,
const float* iBuffer,
const float* qBuffer,
unsigned int num_points)
{
unsigned int number = 0;
float* complexVectorPtr = (float*)complexVector;
const float* iBufferPtr = iBuffer;
const float* qBufferPtr = qBuffer;
const uint64_t eighthPoints = num_points / 8;
__m256 iValue, qValue, cplxValue1, cplxValue2, cplxValue;
for (; number < eighthPoints; number++) {
iValue = _mm256_load_ps(iBufferPtr);
qValue = _mm256_load_ps(qBufferPtr);
// Interleaves the lower two values in the i and q variables into one buffer
cplxValue1 = _mm256_unpacklo_ps(iValue, qValue);
// Interleaves the upper two values in the i and q variables into one buffer
cplxValue2 = _mm256_unpackhi_ps(iValue, qValue);
cplxValue = _mm256_permute2f128_ps(cplxValue1, cplxValue2, 0x20);
_mm256_store_ps(complexVectorPtr, cplxValue);
complexVectorPtr += 8;
cplxValue = _mm256_permute2f128_ps(cplxValue1, cplxValue2, 0x31);
_mm256_store_ps(complexVectorPtr, cplxValue);
complexVectorPtr += 8;
iBufferPtr += 8;
qBufferPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
*complexVectorPtr++ = *iBufferPtr++;
*complexVectorPtr++ = *qBufferPtr++;
}
}
#endif /* LV_HAV_AVX */
#ifdef LV_HAVE_SSE
#include <xmmintrin.h>
static inline void volk_32f_x2_interleave_32fc_a_sse(lv_32fc_t* complexVector,
const float* iBuffer,
const float* qBuffer,
unsigned int num_points)
{
unsigned int number = 0;
float* complexVectorPtr = (float*)complexVector;
const float* iBufferPtr = iBuffer;
const float* qBufferPtr = qBuffer;
const uint64_t quarterPoints = num_points / 4;
__m128 iValue, qValue, cplxValue;
for (; number < quarterPoints; number++) {
iValue = _mm_load_ps(iBufferPtr);
qValue = _mm_load_ps(qBufferPtr);
// Interleaves the lower two values in the i and q variables into one buffer
cplxValue = _mm_unpacklo_ps(iValue, qValue);
_mm_store_ps(complexVectorPtr, cplxValue);
complexVectorPtr += 4;
// Interleaves the upper two values in the i and q variables into one buffer
cplxValue = _mm_unpackhi_ps(iValue, qValue);
_mm_store_ps(complexVectorPtr, cplxValue);
complexVectorPtr += 4;
iBufferPtr += 4;
qBufferPtr += 4;
}
number = quarterPoints * 4;
for (; number < num_points; number++) {
*complexVectorPtr++ = *iBufferPtr++;
*complexVectorPtr++ = *qBufferPtr++;
}
}
#endif /* LV_HAVE_SSE */
#ifdef LV_HAVE_NEON
#include <arm_neon.h>
static inline void volk_32f_x2_interleave_32fc_neon(lv_32fc_t* complexVector,
const float* iBuffer,
const float* qBuffer,
unsigned int num_points)
{
unsigned int quarter_points = num_points / 4;
unsigned int number;
float* complexVectorPtr = (float*)complexVector;
float32x4x2_t complex_vec;
for (number = 0; number < quarter_points; ++number) {
complex_vec.val[0] = vld1q_f32(iBuffer);
complex_vec.val[1] = vld1q_f32(qBuffer);
vst2q_f32(complexVectorPtr, complex_vec);
iBuffer += 4;
qBuffer += 4;
complexVectorPtr += 8;
}
for (number = quarter_points * 4; number < num_points; ++number) {
*complexVectorPtr++ = *iBuffer++;
*complexVectorPtr++ = *qBuffer++;
}
}
#endif /* LV_HAVE_NEON */
#ifdef LV_HAVE_NEONV8
#include <arm_neon.h>
static inline void volk_32f_x2_interleave_32fc_neonv8(lv_32fc_t* complexVector,
const float* iBuffer,
const float* qBuffer,
unsigned int num_points)
{
const unsigned int eighthPoints = num_points / 8;
float* outPtr = (float*)complexVector;
const float* iPtr = iBuffer;
const float* qPtr = qBuffer;
for (unsigned int number = 0; number < eighthPoints; number++) {
float32x4x2_t cplx0, cplx1;
cplx0.val[0] = vld1q_f32(iPtr);
cplx0.val[1] = vld1q_f32(qPtr);
cplx1.val[0] = vld1q_f32(iPtr + 4);
cplx1.val[1] = vld1q_f32(qPtr + 4);
__VOLK_PREFETCH(iPtr + 16);
__VOLK_PREFETCH(qPtr + 16);
vst2q_f32(outPtr, cplx0);
vst2q_f32(outPtr + 8, cplx1);
iPtr += 8;
qPtr += 8;
outPtr += 16;
}
for (unsigned int number = eighthPoints * 8; number < num_points; number++) {
*outPtr++ = *iPtr++;
*outPtr++ = *qPtr++;
}
}
#endif /* LV_HAVE_NEONV8 */
#ifdef LV_HAVE_GENERIC
static inline void volk_32f_x2_interleave_32fc_generic(lv_32fc_t* complexVector,
const float* iBuffer,
const float* qBuffer,
unsigned int num_points)
{
float* complexVectorPtr = (float*)complexVector;
const float* iBufferPtr = iBuffer;
const float* qBufferPtr = qBuffer;
unsigned int number;
for (number = 0; number < num_points; number++) {
*complexVectorPtr++ = *iBufferPtr++;
*complexVectorPtr++ = *qBufferPtr++;
}
}
#endif /* LV_HAVE_GENERIC */
#endif /* INCLUDED_volk_32f_x2_interleave_32fc_a_H */
#ifndef INCLUDED_volk_32f_x2_interleave_32fc_u_H
#define INCLUDED_volk_32f_x2_interleave_32fc_u_H
#include <inttypes.h>
#include <stdio.h>
#ifdef LV_HAVE_AVX
#include <immintrin.h>
static inline void volk_32f_x2_interleave_32fc_u_avx(lv_32fc_t* complexVector,
const float* iBuffer,
const float* qBuffer,
unsigned int num_points)
{
unsigned int number = 0;
float* complexVectorPtr = (float*)complexVector;
const float* iBufferPtr = iBuffer;
const float* qBufferPtr = qBuffer;
const uint64_t eighthPoints = num_points / 8;
__m256 iValue, qValue, cplxValue1, cplxValue2, cplxValue;
for (; number < eighthPoints; number++) {
iValue = _mm256_loadu_ps(iBufferPtr);
qValue = _mm256_loadu_ps(qBufferPtr);
// Interleaves the lower two values in the i and q variables into one buffer
cplxValue1 = _mm256_unpacklo_ps(iValue, qValue);
// Interleaves the upper two values in the i and q variables into one buffer
cplxValue2 = _mm256_unpackhi_ps(iValue, qValue);
cplxValue = _mm256_permute2f128_ps(cplxValue1, cplxValue2, 0x20);
_mm256_storeu_ps(complexVectorPtr, cplxValue);
complexVectorPtr += 8;
cplxValue = _mm256_permute2f128_ps(cplxValue1, cplxValue2, 0x31);
_mm256_storeu_ps(complexVectorPtr, cplxValue);
complexVectorPtr += 8;
iBufferPtr += 8;
qBufferPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
*complexVectorPtr++ = *iBufferPtr++;
*complexVectorPtr++ = *qBufferPtr++;
}
}
#endif /* LV_HAVE_AVX */
#ifdef LV_HAVE_RVV
#include <riscv_vector.h>
static inline void volk_32f_x2_interleave_32fc_rvv(lv_32fc_t* complexVector,
const float* iBuffer,
const float* qBuffer,
unsigned int num_points)
{
uint64_t* out = (uint64_t*)complexVector;
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, out += vl, iBuffer += vl, qBuffer += vl) {
vl = __riscv_vsetvl_e32m4(n);
vuint32m4_t vr = __riscv_vle32_v_u32m4((const uint32_t*)iBuffer, vl);
vuint32m4_t vi = __riscv_vle32_v_u32m4((const uint32_t*)qBuffer, vl);
vuint64m8_t vc =
__riscv_vwmaccu(__riscv_vwaddu_vv(vr, vi, vl), 0xFFFFFFFF, vi, vl);
__riscv_vse64(out, vc, vl);
}
}
#endif /*LV_HAVE_RVV*/
#ifdef LV_HAVE_RVVSEG
#include <riscv_vector.h>
static inline void volk_32f_x2_interleave_32fc_rvvseg(lv_32fc_t* complexVector,
const float* iBuffer,
const float* qBuffer,
unsigned int num_points)
{
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, complexVector += vl, iBuffer += vl, qBuffer += vl) {
vl = __riscv_vsetvl_e32m4(n);
vfloat32m4_t vr = __riscv_vle32_v_f32m4(iBuffer, vl);
vfloat32m4_t vi = __riscv_vle32_v_f32m4(qBuffer, vl);
__riscv_vsseg2e32((float*)complexVector, __riscv_vcreate_v_f32m4x2(vr, vi), vl);
}
}
#endif /*LV_HAVE_RVVSEG*/
#endif /* INCLUDED_volk_32f_x2_interleave_32fc_u_H */