Vector Optimized Library of Kernels 2.5.1
Architecture-tuned implementations of math kernels
volk_32f_x2_subtract_32f.h
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1/* -*- c++ -*- */
2/*
3 * Copyright 2012, 2014 Free Software Foundation, Inc.
4 *
5 * This file is part of GNU Radio
6 *
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
10 * any later version.
11 *
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
21 */
22
71#ifndef INCLUDED_volk_32f_x2_subtract_32f_a_H
72#define INCLUDED_volk_32f_x2_subtract_32f_a_H
73
74#include <inttypes.h>
75#include <stdio.h>
76
77#ifdef LV_HAVE_AVX512F
78#include <immintrin.h>
79
80static inline void volk_32f_x2_subtract_32f_a_avx512f(float* cVector,
81 const float* aVector,
82 const float* bVector,
83 unsigned int num_points)
84{
85 unsigned int number = 0;
86 const unsigned int sixteenthPoints = num_points / 16;
87
88 float* cPtr = cVector;
89 const float* aPtr = aVector;
90 const float* bPtr = bVector;
91
92 __m512 aVal, bVal, cVal;
93 for (; number < sixteenthPoints; number++) {
94
95 aVal = _mm512_load_ps(aPtr);
96 bVal = _mm512_load_ps(bPtr);
97
98 cVal = _mm512_sub_ps(aVal, bVal);
99
100 _mm512_store_ps(cPtr, cVal); // Store the results back into the C container
101
102 aPtr += 16;
103 bPtr += 16;
104 cPtr += 16;
105 }
106
107 number = sixteenthPoints * 16;
108 for (; number < num_points; number++) {
109 *cPtr++ = (*aPtr++) - (*bPtr++);
110 }
111}
112#endif /* LV_HAVE_AVX512F */
113
114#ifdef LV_HAVE_AVX
115#include <immintrin.h>
116
117static inline void volk_32f_x2_subtract_32f_a_avx(float* cVector,
118 const float* aVector,
119 const float* bVector,
120 unsigned int num_points)
121{
122 unsigned int number = 0;
123 const unsigned int eighthPoints = num_points / 8;
124
125 float* cPtr = cVector;
126 const float* aPtr = aVector;
127 const float* bPtr = bVector;
128
129 __m256 aVal, bVal, cVal;
130 for (; number < eighthPoints; number++) {
131
132 aVal = _mm256_load_ps(aPtr);
133 bVal = _mm256_load_ps(bPtr);
134
135 cVal = _mm256_sub_ps(aVal, bVal);
136
137 _mm256_store_ps(cPtr, cVal); // Store the results back into the C container
138
139 aPtr += 8;
140 bPtr += 8;
141 cPtr += 8;
142 }
143
144 number = eighthPoints * 8;
145 for (; number < num_points; number++) {
146 *cPtr++ = (*aPtr++) - (*bPtr++);
147 }
148}
149#endif /* LV_HAVE_AVX */
150
151#ifdef LV_HAVE_SSE
152#include <xmmintrin.h>
153
154static inline void volk_32f_x2_subtract_32f_a_sse(float* cVector,
155 const float* aVector,
156 const float* bVector,
157 unsigned int num_points)
158{
159 unsigned int number = 0;
160 const unsigned int quarterPoints = num_points / 4;
161
162 float* cPtr = cVector;
163 const float* aPtr = aVector;
164 const float* bPtr = bVector;
165
166 __m128 aVal, bVal, cVal;
167 for (; number < quarterPoints; number++) {
168
169 aVal = _mm_load_ps(aPtr);
170 bVal = _mm_load_ps(bPtr);
171
172 cVal = _mm_sub_ps(aVal, bVal);
173
174 _mm_store_ps(cPtr, cVal); // Store the results back into the C container
175
176 aPtr += 4;
177 bPtr += 4;
178 cPtr += 4;
179 }
180
181 number = quarterPoints * 4;
182 for (; number < num_points; number++) {
183 *cPtr++ = (*aPtr++) - (*bPtr++);
184 }
185}
186#endif /* LV_HAVE_SSE */
187
188
189#ifdef LV_HAVE_GENERIC
190
191static inline void volk_32f_x2_subtract_32f_generic(float* cVector,
192 const float* aVector,
193 const float* bVector,
194 unsigned int num_points)
195{
196 float* cPtr = cVector;
197 const float* aPtr = aVector;
198 const float* bPtr = bVector;
199 unsigned int number = 0;
200
201 for (number = 0; number < num_points; number++) {
202 *cPtr++ = (*aPtr++) - (*bPtr++);
203 }
204}
205#endif /* LV_HAVE_GENERIC */
206
207
208#ifdef LV_HAVE_NEON
209#include <arm_neon.h>
210
211static inline void volk_32f_x2_subtract_32f_neon(float* cVector,
212 const float* aVector,
213 const float* bVector,
214 unsigned int num_points)
215{
216 float* cPtr = cVector;
217 const float* aPtr = aVector;
218 const float* bPtr = bVector;
219 unsigned int number = 0;
220 unsigned int quarter_points = num_points / 4;
221
222 float32x4_t a_vec, b_vec, c_vec;
223
224 for (number = 0; number < quarter_points; number++) {
225 a_vec = vld1q_f32(aPtr);
226 b_vec = vld1q_f32(bPtr);
227 c_vec = vsubq_f32(a_vec, b_vec);
228 vst1q_f32(cPtr, c_vec);
229 aPtr += 4;
230 bPtr += 4;
231 cPtr += 4;
232 }
233
234 for (number = quarter_points * 4; number < num_points; number++) {
235 *cPtr++ = (*aPtr++) - (*bPtr++);
236 }
237}
238#endif /* LV_HAVE_NEON */
239
240
241#ifdef LV_HAVE_ORC
242extern void volk_32f_x2_subtract_32f_a_orc_impl(float* cVector,
243 const float* aVector,
244 const float* bVector,
245 unsigned int num_points);
246
247static inline void volk_32f_x2_subtract_32f_u_orc(float* cVector,
248 const float* aVector,
249 const float* bVector,
250 unsigned int num_points)
251{
252 volk_32f_x2_subtract_32f_a_orc_impl(cVector, aVector, bVector, num_points);
253}
254#endif /* LV_HAVE_ORC */
255
256
257#endif /* INCLUDED_volk_32f_x2_subtract_32f_a_H */
258
259
260#ifndef INCLUDED_volk_32f_x2_subtract_32f_u_H
261#define INCLUDED_volk_32f_x2_subtract_32f_u_H
262
263#include <inttypes.h>
264#include <stdio.h>
265
266#ifdef LV_HAVE_AVX512F
267#include <immintrin.h>
268
269static inline void volk_32f_x2_subtract_32f_u_avx512f(float* cVector,
270 const float* aVector,
271 const float* bVector,
272 unsigned int num_points)
273{
274 unsigned int number = 0;
275 const unsigned int sixteenthPoints = num_points / 16;
276
277 float* cPtr = cVector;
278 const float* aPtr = aVector;
279 const float* bPtr = bVector;
280
281 __m512 aVal, bVal, cVal;
282 for (; number < sixteenthPoints; number++) {
283
284 aVal = _mm512_loadu_ps(aPtr);
285 bVal = _mm512_loadu_ps(bPtr);
286
287 cVal = _mm512_sub_ps(aVal, bVal);
288
289 _mm512_storeu_ps(cPtr, cVal); // Store the results back into the C container
290
291 aPtr += 16;
292 bPtr += 16;
293 cPtr += 16;
294 }
295
296 number = sixteenthPoints * 16;
297 for (; number < num_points; number++) {
298 *cPtr++ = (*aPtr++) - (*bPtr++);
299 }
300}
301#endif /* LV_HAVE_AVX512F */
302
303
304#ifdef LV_HAVE_AVX
305#include <immintrin.h>
306
307static inline void volk_32f_x2_subtract_32f_u_avx(float* cVector,
308 const float* aVector,
309 const float* bVector,
310 unsigned int num_points)
311{
312 unsigned int number = 0;
313 const unsigned int eighthPoints = num_points / 8;
314
315 float* cPtr = cVector;
316 const float* aPtr = aVector;
317 const float* bPtr = bVector;
318
319 __m256 aVal, bVal, cVal;
320 for (; number < eighthPoints; number++) {
321
322 aVal = _mm256_loadu_ps(aPtr);
323 bVal = _mm256_loadu_ps(bPtr);
324
325 cVal = _mm256_sub_ps(aVal, bVal);
326
327 _mm256_storeu_ps(cPtr, cVal); // Store the results back into the C container
328
329 aPtr += 8;
330 bPtr += 8;
331 cPtr += 8;
332 }
333
334 number = eighthPoints * 8;
335 for (; number < num_points; number++) {
336 *cPtr++ = (*aPtr++) - (*bPtr++);
337 }
338}
339#endif /* LV_HAVE_AVX */
340
341#endif /* INCLUDED_volk_32f_x2_subtract_32f_u_H */
static void volk_32f_x2_subtract_32f_neon(float *cVector, const float *aVector, const float *bVector, unsigned int num_points)
Definition: volk_32f_x2_subtract_32f.h:211
static void volk_32f_x2_subtract_32f_a_avx(float *cVector, const float *aVector, const float *bVector, unsigned int num_points)
Definition: volk_32f_x2_subtract_32f.h:117
static void volk_32f_x2_subtract_32f_u_avx(float *cVector, const float *aVector, const float *bVector, unsigned int num_points)
Definition: volk_32f_x2_subtract_32f.h:307
static void volk_32f_x2_subtract_32f_a_sse(float *cVector, const float *aVector, const float *bVector, unsigned int num_points)
Definition: volk_32f_x2_subtract_32f.h:154
static void volk_32f_x2_subtract_32f_generic(float *cVector, const float *aVector, const float *bVector, unsigned int num_points)
Definition: volk_32f_x2_subtract_32f.h:191