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volk_32fc_32f_add_32fc.h
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/* -*- c++ -*- */
/*
* Copyright 2018 Free Software Foundation, Inc.
*
* This file is part of VOLK
*
* SPDX-License-Identifier: LGPL-3.0-or-later
*/
#ifndef INCLUDED_volk_32fc_32f_add_32fc_u_H
#define INCLUDED_volk_32fc_32f_add_32fc_u_H
#ifdef LV_HAVE_GENERIC
static inline void volk_32fc_32f_add_32fc_generic(lv_32fc_t* cVector,
const lv_32fc_t* aVector,
const float* bVector,
unsigned int num_points)
{
lv_32fc_t* cPtr = cVector;
const lv_32fc_t* aPtr = aVector;
const float* bPtr = bVector;
unsigned int number = 0;
for (number = 0; number < num_points; number++) {
*cPtr++ = (*aPtr++) + (*bPtr++);
}
}
#endif /* LV_HAVE_GENERIC */
#ifdef LV_HAVE_AVX
#include <immintrin.h>
static inline void volk_32fc_32f_add_32fc_u_avx(lv_32fc_t* cVector,
const lv_32fc_t* aVector,
const float* bVector,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int eighthPoints = num_points / 8;
lv_32fc_t* cPtr = cVector;
const lv_32fc_t* aPtr = aVector;
const float* bPtr = bVector;
__m256 aVal1, aVal2, bVal, cVal1, cVal2;
__m256 cpx_b1, cpx_b2;
__m256 zero;
zero = _mm256_setzero_ps();
__m256 tmp1, tmp2;
for (; number < eighthPoints; number++) {
aVal1 = _mm256_loadu_ps((float*)aPtr);
aVal2 = _mm256_loadu_ps((float*)(aPtr + 4));
bVal = _mm256_loadu_ps(bPtr);
cpx_b1 = _mm256_unpacklo_ps(bVal, zero); // b0, 0, b1, 0, b4, 0, b5, 0
cpx_b2 = _mm256_unpackhi_ps(bVal, zero); // b2, 0, b3, 0, b6, 0, b7, 0
tmp1 = _mm256_permute2f128_ps(cpx_b1, cpx_b2, 0x0 + (0x2 << 4));
tmp2 = _mm256_permute2f128_ps(cpx_b1, cpx_b2, 0x1 + (0x3 << 4));
cVal1 = _mm256_add_ps(aVal1, tmp1);
cVal2 = _mm256_add_ps(aVal2, tmp2);
_mm256_storeu_ps((float*)cPtr,
cVal1); // Store the results back into the C container
_mm256_storeu_ps((float*)(cPtr + 4),
cVal2); // Store the results back into the C container
aPtr += 8;
bPtr += 8;
cPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
*cPtr++ = (*aPtr++) + (*bPtr++);
}
}
#endif /* LV_HAVE_AVX */
#ifdef LV_HAVE_AVX
#include <immintrin.h>
static inline void volk_32fc_32f_add_32fc_a_avx(lv_32fc_t* cVector,
const lv_32fc_t* aVector,
const float* bVector,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int eighthPoints = num_points / 8;
lv_32fc_t* cPtr = cVector;
const lv_32fc_t* aPtr = aVector;
const float* bPtr = bVector;
__m256 aVal1, aVal2, bVal, cVal1, cVal2;
__m256 cpx_b1, cpx_b2;
__m256 zero;
zero = _mm256_setzero_ps();
__m256 tmp1, tmp2;
for (; number < eighthPoints; number++) {
aVal1 = _mm256_load_ps((float*)aPtr);
aVal2 = _mm256_load_ps((float*)(aPtr + 4));
bVal = _mm256_load_ps(bPtr);
cpx_b1 = _mm256_unpacklo_ps(bVal, zero); // b0, 0, b1, 0, b4, 0, b5, 0
cpx_b2 = _mm256_unpackhi_ps(bVal, zero); // b2, 0, b3, 0, b6, 0, b7, 0
tmp1 = _mm256_permute2f128_ps(cpx_b1, cpx_b2, 0x0 + (0x2 << 4));
tmp2 = _mm256_permute2f128_ps(cpx_b1, cpx_b2, 0x1 + (0x3 << 4));
cVal1 = _mm256_add_ps(aVal1, tmp1);
cVal2 = _mm256_add_ps(aVal2, tmp2);
_mm256_store_ps((float*)cPtr,
cVal1); // Store the results back into the C container
_mm256_store_ps((float*)(cPtr + 4),
cVal2); // Store the results back into the C container
aPtr += 8;
bPtr += 8;
cPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
*cPtr++ = (*aPtr++) + (*bPtr++);
}
}
#endif /* LV_HAVE_AVX */
#ifdef LV_HAVE_NEON
#include <arm_neon.h>
static inline void volk_32fc_32f_add_32fc_neon(lv_32fc_t* cVector,
const lv_32fc_t* aVector,
const float* bVector,
unsigned int num_points)
{
lv_32fc_t* cPtr = cVector;
const lv_32fc_t* aPtr = aVector;
const float* bPtr = bVector;
float32x4x4_t aVal0, aVal1;
float32x4x2_t bVal0, bVal1;
const unsigned int sixteenthPoints = num_points / 16;
unsigned int number = 0;
for (; number < sixteenthPoints; number++) {
aVal0 = vld4q_f32((const float*)aPtr);
aPtr += 8;
aVal1 = vld4q_f32((const float*)aPtr);
aPtr += 8;
__VOLK_PREFETCH(aPtr + 16);
bVal0 = vld2q_f32((const float*)bPtr);
bPtr += 8;
bVal1 = vld2q_f32((const float*)bPtr);
bPtr += 8;
__VOLK_PREFETCH(bPtr + 16);
aVal0.val[0] = vaddq_f32(aVal0.val[0], bVal0.val[0]);
aVal0.val[2] = vaddq_f32(aVal0.val[2], bVal0.val[1]);
aVal1.val[2] = vaddq_f32(aVal1.val[2], bVal1.val[1]);
aVal1.val[0] = vaddq_f32(aVal1.val[0], bVal1.val[0]);
vst4q_f32((float*)(cPtr), aVal0);
cPtr += 8;
vst4q_f32((float*)(cPtr), aVal1);
cPtr += 8;
}
for (number = sixteenthPoints * 16; number < num_points; number++) {
*cPtr++ = (*aPtr++) + (*bPtr++);
}
}
#endif /* LV_HAVE_NEON */
#ifdef LV_HAVE_NEONV8
#include <arm_neon.h>
static inline void volk_32fc_32f_add_32fc_neonv8(lv_32fc_t* cVector,
const lv_32fc_t* aVector,
const float* bVector,
unsigned int num_points)
{
const unsigned int eighthPoints = num_points / 8;
const float* aPtr = (const float*)aVector;
const float* bPtr = bVector;
float* cPtr = (float*)cVector;
for (unsigned int number = 0; number < eighthPoints; number++) {
/* Load complex values (interleaved real/imag) */
float32x4_t a0 = vld1q_f32(aPtr);
float32x4_t a1 = vld1q_f32(aPtr + 4);
float32x4_t a2 = vld1q_f32(aPtr + 8);
float32x4_t a3 = vld1q_f32(aPtr + 12);
/* Load real values and duplicate for complex add */
float32x4_t b0 = vld1q_f32(bPtr);
float32x4_t b1 = vld1q_f32(bPtr + 4);
__VOLK_PREFETCH(aPtr + 32);
__VOLK_PREFETCH(bPtr + 16);
/* Interleave b values with zeros: [b0, 0, b1, 0] */
float32x4x2_t b0_zip = vzipq_f32(b0, vdupq_n_f32(0));
float32x4x2_t b1_zip = vzipq_f32(b1, vdupq_n_f32(0));
/* Add to complex */
vst1q_f32(cPtr, vaddq_f32(a0, b0_zip.val[0]));
vst1q_f32(cPtr + 4, vaddq_f32(a1, b0_zip.val[1]));
vst1q_f32(cPtr + 8, vaddq_f32(a2, b1_zip.val[0]));
vst1q_f32(cPtr + 12, vaddq_f32(a3, b1_zip.val[1]));
aPtr += 16;
bPtr += 8;
cPtr += 16;
}
for (unsigned int number = eighthPoints * 8; number < num_points; number++) {
cVector[number] = aVector[number] + bVector[number];
}
}
#endif /* LV_HAVE_NEONV8 */
#ifdef LV_HAVE_RVV
#include <riscv_vector.h>
static inline void volk_32fc_32f_add_32fc_rvv(lv_32fc_t* cVector,
const lv_32fc_t* aVector,
const float* bVector,
unsigned int num_points)
{
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, cVector += vl, aVector += vl, bVector += vl) {
vl = __riscv_vsetvl_e32m4(n);
vfloat32m8_t vc = __riscv_vle32_v_f32m8((const float*)aVector, vl * 2);
vuint32m4_t v = __riscv_vle32_v_u32m4((const uint32_t*)bVector, vl);
vfloat32m8_t vf = __riscv_vreinterpret_f32m8(
__riscv_vreinterpret_u32m8(__riscv_vzext_vf2_u64m8(v, vl)));
__riscv_vse32((float*)cVector, __riscv_vfadd(vc, vf, vl * 2), vl * 2);
}
}
#endif /*LV_HAVE_RVV*/
#endif /* INCLUDED_volk_32fc_32f_add_32fc_a_H */