Loading...
Searching...
No Matches
volk_8ic_deinterleave_real_16i.h
Go to the documentation of this file.
/* -*- 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_deinterleave_real_16i_a_H
#define INCLUDED_volk_8ic_deinterleave_real_16i_a_H
#include <inttypes.h>
#include <stdio.h>
#ifdef LV_HAVE_AVX2
#include <immintrin.h>
static inline void volk_8ic_deinterleave_real_16i_a_avx2(int16_t* iBuffer,
const lv_8sc_t* complexVector,
unsigned int num_points)
{
unsigned int number = 0;
const int8_t* complexVectorPtr = (int8_t*)complexVector;
int16_t* iBufferPtr = iBuffer;
__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);
__m256i complexVal, outputVal;
__m128i outputVal0;
unsigned int sixteenthPoints = num_points / 16;
for (number = 0; number < sixteenthPoints; number++) {
complexVal = _mm256_load_si256((__m256i*)complexVectorPtr);
complexVectorPtr += 32;
complexVal = _mm256_shuffle_epi8(complexVal, moveMask);
complexVal = _mm256_permute4x64_epi64(complexVal, 0xd8);
outputVal0 = _mm256_extractf128_si256(complexVal, 0);
outputVal = _mm256_cvtepi8_epi16(outputVal0);
outputVal = _mm256_slli_epi16(outputVal, 7);
_mm256_store_si256((__m256i*)iBufferPtr, outputVal);
iBufferPtr += 16;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
*iBufferPtr++ = ((int16_t)*complexVectorPtr++) * 128;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_AVX2 */
#ifdef LV_HAVE_SSE4_1
#include <smmintrin.h>
static inline void volk_8ic_deinterleave_real_16i_a_sse4_1(int16_t* iBuffer,
const lv_8sc_t* complexVector,
unsigned int num_points)
{
unsigned int number = 0;
const int8_t* complexVectorPtr = (int8_t*)complexVector;
int16_t* iBufferPtr = iBuffer;
__m128i moveMask = _mm_set_epi8(
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 14, 12, 10, 8, 6, 4, 2, 0);
__m128i complexVal, outputVal;
unsigned int eighthPoints = num_points / 8;
for (number = 0; number < eighthPoints; number++) {
complexVal = _mm_load_si128((__m128i*)complexVectorPtr);
complexVectorPtr += 16;
complexVal = _mm_shuffle_epi8(complexVal, moveMask);
outputVal = _mm_cvtepi8_epi16(complexVal);
outputVal = _mm_slli_epi16(outputVal, 7);
_mm_store_si128((__m128i*)iBufferPtr, outputVal);
iBufferPtr += 8;
}
number = eighthPoints * 8;
for (; number < num_points; number++) {
*iBufferPtr++ = ((int16_t)*complexVectorPtr++) * 128;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_SSE4_1 */
#ifdef LV_HAVE_AVX
#include <immintrin.h>
static inline void volk_8ic_deinterleave_real_16i_a_avx(int16_t* iBuffer,
const lv_8sc_t* complexVector,
unsigned int num_points)
{
unsigned int number = 0;
const int8_t* complexVectorPtr = (int8_t*)complexVector;
int16_t* iBufferPtr = iBuffer;
__m128i moveMask = _mm_set_epi8(
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 14, 12, 10, 8, 6, 4, 2, 0);
__m256i complexVal, outputVal;
__m128i complexVal1, complexVal0, outputVal1, outputVal0;
unsigned int sixteenthPoints = num_points / 16;
for (number = 0; number < sixteenthPoints; number++) {
complexVal = _mm256_load_si256((__m256i*)complexVectorPtr);
complexVectorPtr += 32;
complexVal1 = _mm256_extractf128_si256(complexVal, 1);
complexVal0 = _mm256_extractf128_si256(complexVal, 0);
outputVal1 = _mm_shuffle_epi8(complexVal1, moveMask);
outputVal0 = _mm_shuffle_epi8(complexVal0, moveMask);
outputVal1 = _mm_cvtepi8_epi16(outputVal1);
outputVal1 = _mm_slli_epi16(outputVal1, 7);
outputVal0 = _mm_cvtepi8_epi16(outputVal0);
outputVal0 = _mm_slli_epi16(outputVal0, 7);
__m256i dummy = _mm256_setzero_si256();
outputVal = _mm256_insertf128_si256(dummy, outputVal0, 0);
outputVal = _mm256_insertf128_si256(outputVal, outputVal1, 1);
_mm256_store_si256((__m256i*)iBufferPtr, outputVal);
iBufferPtr += 16;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
*iBufferPtr++ = ((int16_t)*complexVectorPtr++) * 128;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_AVX */
#ifdef LV_HAVE_GENERIC
static inline void volk_8ic_deinterleave_real_16i_generic(int16_t* iBuffer,
const lv_8sc_t* complexVector,
unsigned int num_points)
{
unsigned int number = 0;
const int8_t* complexVectorPtr = (const int8_t*)complexVector;
int16_t* iBufferPtr = iBuffer;
for (number = 0; number < num_points; number++) {
*iBufferPtr++ = ((int16_t)(*complexVectorPtr++)) * 128;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_GENERIC */
#endif /* INCLUDED_volk_8ic_deinterleave_real_16i_a_H */
#ifndef INCLUDED_volk_8ic_deinterleave_real_16i_u_H
#define INCLUDED_volk_8ic_deinterleave_real_16i_u_H
#include <inttypes.h>
#include <stdio.h>
#ifdef LV_HAVE_AVX2
#include <immintrin.h>
static inline void volk_8ic_deinterleave_real_16i_u_avx2(int16_t* iBuffer,
const lv_8sc_t* complexVector,
unsigned int num_points)
{
unsigned int number = 0;
const int8_t* complexVectorPtr = (int8_t*)complexVector;
int16_t* iBufferPtr = iBuffer;
__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);
__m256i complexVal, outputVal;
__m128i outputVal0;
unsigned int sixteenthPoints = num_points / 16;
for (number = 0; number < sixteenthPoints; number++) {
complexVal = _mm256_loadu_si256((__m256i*)complexVectorPtr);
complexVectorPtr += 32;
complexVal = _mm256_shuffle_epi8(complexVal, moveMask);
complexVal = _mm256_permute4x64_epi64(complexVal, 0xd8);
outputVal0 = _mm256_extractf128_si256(complexVal, 0);
outputVal = _mm256_cvtepi8_epi16(outputVal0);
outputVal = _mm256_slli_epi16(outputVal, 7);
_mm256_storeu_si256((__m256i*)iBufferPtr, outputVal);
iBufferPtr += 16;
}
number = sixteenthPoints * 16;
for (; number < num_points; number++) {
*iBufferPtr++ = ((int16_t)*complexVectorPtr++) * 128;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_AVX2 */
#ifdef LV_HAVE_NEON
#include <arm_neon.h>
static inline void volk_8ic_deinterleave_real_16i_neon(int16_t* iBuffer,
const lv_8sc_t* complexVector,
unsigned int num_points)
{
unsigned int number = 0;
const unsigned int eighth_points = num_points / 8;
const int8_t* complexVectorPtr = (const int8_t*)complexVector;
int16_t* iBufferPtr = iBuffer;
for (; number < eighth_points; number++) {
int8x8x2_t input = vld2_s8(complexVectorPtr);
complexVectorPtr += 16;
int16x8_t iVal = vshll_n_s8(input.val[0], 7);
vst1q_s16(iBufferPtr, iVal);
iBufferPtr += 8;
}
number = eighth_points * 8;
for (; number < num_points; number++) {
*iBufferPtr++ = ((int16_t)*complexVectorPtr++) * 128;
complexVectorPtr++;
}
}
#endif /* LV_HAVE_NEON */
#ifdef LV_HAVE_RVV
#include <riscv_vector.h>
static inline void volk_8ic_deinterleave_real_16i_rvv(int16_t* iBuffer,
const lv_8sc_t* complexVector,
unsigned int num_points)
{
const int16_t* in = (const int16_t*)complexVector;
size_t n = num_points;
for (size_t vl; n > 0; n -= vl, in += vl, iBuffer += vl) {
vl = __riscv_vsetvl_e16m8(n);
vint16m8_t v = __riscv_vle16_v_i16m8(in, vl);
__riscv_vse16(iBuffer, __riscv_vsra(__riscv_vsll(v, 8, vl), 1, vl), vl);
}
}
#endif /*LV_HAVE_RVV*/
#endif /* INCLUDED_volk_8ic_deinterleave_real_16i_u_H */