| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* -*- c++ -*- */ | ||
| 2 | /* | ||
| 3 | * Copyright 2012, 2014 Free Software Foundation, Inc. | ||
| 4 | * | ||
| 5 | * This file is part of VOLK | ||
| 6 | * | ||
| 7 | * SPDX-License-Identifier: LGPL-3.0-or-later | ||
| 8 | */ | ||
| 9 | |||
| 10 | /*! | ||
| 11 | * \page volk_32f_x2_subtract_32f | ||
| 12 | * | ||
| 13 | * \b Overview | ||
| 14 | * | ||
| 15 | * Subtracts values in bVector from values in aVector. | ||
| 16 | * | ||
| 17 | * c[i] = a[i] - b[i] | ||
| 18 | * | ||
| 19 | * <b>Dispatcher Prototype</b> | ||
| 20 | * \code | ||
| 21 | * void volk_32f_x2_subtract_32f(float* cVector, const float* aVector, const float* | ||
| 22 | * bVector, unsigned int num_points) \endcode | ||
| 23 | * | ||
| 24 | * \b Inputs | ||
| 25 | * \li aVector: The initial vector. | ||
| 26 | * \li bVector: The vector to be subtracted. | ||
| 27 | * \li num_points: The number of values in both input vectors. | ||
| 28 | * | ||
| 29 | * \b Outputs | ||
| 30 | * \li complexVector: The output vector. | ||
| 31 | * | ||
| 32 | * \b Example | ||
| 33 | * Subtract and increasing vector from a decreasing vector. | ||
| 34 | * \code | ||
| 35 | * int N = 10; | ||
| 36 | * unsigned int alignment = volk_get_alignment(); | ||
| 37 | * float* increasing = (float*)volk_malloc(sizeof(float)*N, alignment); | ||
| 38 | * float* decreasing = (float*)volk_malloc(sizeof(float)*N, alignment); | ||
| 39 | * float* out = (float*)volk_malloc(sizeof(float)*N, alignment); | ||
| 40 | * | ||
| 41 | * for(unsigned int ii = 0; ii < N; ++ii){ | ||
| 42 | * increasing[ii] = (float)ii; | ||
| 43 | * decreasing[ii] = 10.f - (float)ii; | ||
| 44 | * } | ||
| 45 | * | ||
| 46 | * volk_32f_x2_subtract_32f(out, increasing, decreasing, N); | ||
| 47 | * | ||
| 48 | * for(unsigned int ii = 0; ii < N; ++ii){ | ||
| 49 | * printf("out[%u] = %1.2f\n", ii, out[ii]); | ||
| 50 | * } | ||
| 51 | * | ||
| 52 | * volk_free(increasing); | ||
| 53 | * volk_free(decreasing); | ||
| 54 | * volk_free(out); | ||
| 55 | * \endcode | ||
| 56 | */ | ||
| 57 | |||
| 58 | #ifndef INCLUDED_volk_32f_x2_subtract_32f_a_H | ||
| 59 | #define INCLUDED_volk_32f_x2_subtract_32f_a_H | ||
| 60 | |||
| 61 | #include <inttypes.h> | ||
| 62 | #include <stdio.h> | ||
| 63 | |||
| 64 | #ifdef LV_HAVE_AVX512F | ||
| 65 | #include <immintrin.h> | ||
| 66 | |||
| 67 | ✗ | static inline void volk_32f_x2_subtract_32f_a_avx512f(float* cVector, | |
| 68 | const float* aVector, | ||
| 69 | const float* bVector, | ||
| 70 | unsigned int num_points) | ||
| 71 | { | ||
| 72 | ✗ | unsigned int number = 0; | |
| 73 | ✗ | const unsigned int sixteenthPoints = num_points / 16; | |
| 74 | |||
| 75 | ✗ | float* cPtr = cVector; | |
| 76 | ✗ | const float* aPtr = aVector; | |
| 77 | ✗ | const float* bPtr = bVector; | |
| 78 | |||
| 79 | __m512 aVal, bVal, cVal; | ||
| 80 | ✗ | for (; number < sixteenthPoints; number++) { | |
| 81 | |||
| 82 | ✗ | aVal = _mm512_load_ps(aPtr); | |
| 83 | ✗ | bVal = _mm512_load_ps(bPtr); | |
| 84 | |||
| 85 | ✗ | cVal = _mm512_sub_ps(aVal, bVal); | |
| 86 | |||
| 87 | _mm512_store_ps(cPtr, cVal); // Store the results back into the C container | ||
| 88 | |||
| 89 | ✗ | aPtr += 16; | |
| 90 | ✗ | bPtr += 16; | |
| 91 | ✗ | cPtr += 16; | |
| 92 | } | ||
| 93 | |||
| 94 | ✗ | number = sixteenthPoints * 16; | |
| 95 | ✗ | for (; number < num_points; number++) { | |
| 96 | ✗ | *cPtr++ = (*aPtr++) - (*bPtr++); | |
| 97 | } | ||
| 98 | ✗ | } | |
| 99 | #endif /* LV_HAVE_AVX512F */ | ||
| 100 | |||
| 101 | #ifdef LV_HAVE_AVX | ||
| 102 | #include <immintrin.h> | ||
| 103 | |||
| 104 | 2 | static inline void volk_32f_x2_subtract_32f_a_avx(float* cVector, | |
| 105 | const float* aVector, | ||
| 106 | const float* bVector, | ||
| 107 | unsigned int num_points) | ||
| 108 | { | ||
| 109 | 2 | unsigned int number = 0; | |
| 110 | 2 | const unsigned int eighthPoints = num_points / 8; | |
| 111 | |||
| 112 | 2 | float* cPtr = cVector; | |
| 113 | 2 | const float* aPtr = aVector; | |
| 114 | 2 | const float* bPtr = bVector; | |
| 115 | |||
| 116 | __m256 aVal, bVal, cVal; | ||
| 117 |
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32768 | for (; number < eighthPoints; number++) { |
| 118 | |||
| 119 | 32766 | aVal = _mm256_load_ps(aPtr); | |
| 120 | 32766 | bVal = _mm256_load_ps(bPtr); | |
| 121 | |||
| 122 | 32766 | cVal = _mm256_sub_ps(aVal, bVal); | |
| 123 | |||
| 124 | _mm256_store_ps(cPtr, cVal); // Store the results back into the C container | ||
| 125 | |||
| 126 | 32766 | aPtr += 8; | |
| 127 | 32766 | bPtr += 8; | |
| 128 | 32766 | cPtr += 8; | |
| 129 | } | ||
| 130 | |||
| 131 | 2 | number = eighthPoints * 8; | |
| 132 |
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16 | for (; number < num_points; number++) { |
| 133 | 14 | *cPtr++ = (*aPtr++) - (*bPtr++); | |
| 134 | } | ||
| 135 | 2 | } | |
| 136 | #endif /* LV_HAVE_AVX */ | ||
| 137 | |||
| 138 | #ifdef LV_HAVE_SSE | ||
| 139 | #include <xmmintrin.h> | ||
| 140 | |||
| 141 | 2 | static inline void volk_32f_x2_subtract_32f_a_sse(float* cVector, | |
| 142 | const float* aVector, | ||
| 143 | const float* bVector, | ||
| 144 | unsigned int num_points) | ||
| 145 | { | ||
| 146 | 2 | unsigned int number = 0; | |
| 147 | 2 | const unsigned int quarterPoints = num_points / 4; | |
| 148 | |||
| 149 | 2 | float* cPtr = cVector; | |
| 150 | 2 | const float* aPtr = aVector; | |
| 151 | 2 | const float* bPtr = bVector; | |
| 152 | |||
| 153 | __m128 aVal, bVal, cVal; | ||
| 154 |
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65536 | for (; number < quarterPoints; number++) { |
| 155 | |||
| 156 | 65534 | aVal = _mm_load_ps(aPtr); | |
| 157 | 65534 | bVal = _mm_load_ps(bPtr); | |
| 158 | |||
| 159 | 65534 | cVal = _mm_sub_ps(aVal, bVal); | |
| 160 | |||
| 161 | _mm_store_ps(cPtr, cVal); // Store the results back into the C container | ||
| 162 | |||
| 163 | 65534 | aPtr += 4; | |
| 164 | 65534 | bPtr += 4; | |
| 165 | 65534 | cPtr += 4; | |
| 166 | } | ||
| 167 | |||
| 168 | 2 | number = quarterPoints * 4; | |
| 169 |
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8 | for (; number < num_points; number++) { |
| 170 | 6 | *cPtr++ = (*aPtr++) - (*bPtr++); | |
| 171 | } | ||
| 172 | 2 | } | |
| 173 | #endif /* LV_HAVE_SSE */ | ||
| 174 | |||
| 175 | |||
| 176 | #ifdef LV_HAVE_GENERIC | ||
| 177 | |||
| 178 | 2 | static inline void volk_32f_x2_subtract_32f_generic(float* cVector, | |
| 179 | const float* aVector, | ||
| 180 | const float* bVector, | ||
| 181 | unsigned int num_points) | ||
| 182 | { | ||
| 183 | 2 | float* cPtr = cVector; | |
| 184 | 2 | const float* aPtr = aVector; | |
| 185 | 2 | const float* bPtr = bVector; | |
| 186 | 2 | unsigned int number = 0; | |
| 187 | |||
| 188 |
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262144 | for (number = 0; number < num_points; number++) { |
| 189 | 262142 | *cPtr++ = (*aPtr++) - (*bPtr++); | |
| 190 | } | ||
| 191 | 2 | } | |
| 192 | #endif /* LV_HAVE_GENERIC */ | ||
| 193 | |||
| 194 | |||
| 195 | #ifdef LV_HAVE_NEON | ||
| 196 | #include <arm_neon.h> | ||
| 197 | |||
| 198 | static inline void volk_32f_x2_subtract_32f_neon(float* cVector, | ||
| 199 | const float* aVector, | ||
| 200 | const float* bVector, | ||
| 201 | unsigned int num_points) | ||
| 202 | { | ||
| 203 | float* cPtr = cVector; | ||
| 204 | const float* aPtr = aVector; | ||
| 205 | const float* bPtr = bVector; | ||
| 206 | unsigned int number = 0; | ||
| 207 | unsigned int quarter_points = num_points / 4; | ||
| 208 | |||
| 209 | float32x4_t a_vec, b_vec, c_vec; | ||
| 210 | |||
| 211 | for (number = 0; number < quarter_points; number++) { | ||
| 212 | a_vec = vld1q_f32(aPtr); | ||
| 213 | b_vec = vld1q_f32(bPtr); | ||
| 214 | c_vec = vsubq_f32(a_vec, b_vec); | ||
| 215 | vst1q_f32(cPtr, c_vec); | ||
| 216 | aPtr += 4; | ||
| 217 | bPtr += 4; | ||
| 218 | cPtr += 4; | ||
| 219 | } | ||
| 220 | |||
| 221 | for (number = quarter_points * 4; number < num_points; number++) { | ||
| 222 | *cPtr++ = (*aPtr++) - (*bPtr++); | ||
| 223 | } | ||
| 224 | } | ||
| 225 | #endif /* LV_HAVE_NEON */ | ||
| 226 | |||
| 227 | |||
| 228 | #ifdef LV_HAVE_ORC | ||
| 229 | extern void volk_32f_x2_subtract_32f_a_orc_impl(float* cVector, | ||
| 230 | const float* aVector, | ||
| 231 | const float* bVector, | ||
| 232 | unsigned int num_points); | ||
| 233 | |||
| 234 | 2 | static inline void volk_32f_x2_subtract_32f_u_orc(float* cVector, | |
| 235 | const float* aVector, | ||
| 236 | const float* bVector, | ||
| 237 | unsigned int num_points) | ||
| 238 | { | ||
| 239 | 2 | volk_32f_x2_subtract_32f_a_orc_impl(cVector, aVector, bVector, num_points); | |
| 240 | 2 | } | |
| 241 | #endif /* LV_HAVE_ORC */ | ||
| 242 | |||
| 243 | |||
| 244 | #endif /* INCLUDED_volk_32f_x2_subtract_32f_a_H */ | ||
| 245 | |||
| 246 | |||
| 247 | #ifndef INCLUDED_volk_32f_x2_subtract_32f_u_H | ||
| 248 | #define INCLUDED_volk_32f_x2_subtract_32f_u_H | ||
| 249 | |||
| 250 | #include <inttypes.h> | ||
| 251 | #include <stdio.h> | ||
| 252 | |||
| 253 | #ifdef LV_HAVE_AVX512F | ||
| 254 | #include <immintrin.h> | ||
| 255 | |||
| 256 | ✗ | static inline void volk_32f_x2_subtract_32f_u_avx512f(float* cVector, | |
| 257 | const float* aVector, | ||
| 258 | const float* bVector, | ||
| 259 | unsigned int num_points) | ||
| 260 | { | ||
| 261 | ✗ | unsigned int number = 0; | |
| 262 | ✗ | const unsigned int sixteenthPoints = num_points / 16; | |
| 263 | |||
| 264 | ✗ | float* cPtr = cVector; | |
| 265 | ✗ | const float* aPtr = aVector; | |
| 266 | ✗ | const float* bPtr = bVector; | |
| 267 | |||
| 268 | __m512 aVal, bVal, cVal; | ||
| 269 | ✗ | for (; number < sixteenthPoints; number++) { | |
| 270 | |||
| 271 | ✗ | aVal = _mm512_loadu_ps(aPtr); | |
| 272 | ✗ | bVal = _mm512_loadu_ps(bPtr); | |
| 273 | |||
| 274 | ✗ | cVal = _mm512_sub_ps(aVal, bVal); | |
| 275 | |||
| 276 | _mm512_storeu_ps(cPtr, cVal); // Store the results back into the C container | ||
| 277 | |||
| 278 | ✗ | aPtr += 16; | |
| 279 | ✗ | bPtr += 16; | |
| 280 | ✗ | cPtr += 16; | |
| 281 | } | ||
| 282 | |||
| 283 | ✗ | number = sixteenthPoints * 16; | |
| 284 | ✗ | for (; number < num_points; number++) { | |
| 285 | ✗ | *cPtr++ = (*aPtr++) - (*bPtr++); | |
| 286 | } | ||
| 287 | ✗ | } | |
| 288 | #endif /* LV_HAVE_AVX512F */ | ||
| 289 | |||
| 290 | |||
| 291 | #ifdef LV_HAVE_AVX | ||
| 292 | #include <immintrin.h> | ||
| 293 | |||
| 294 | 2 | static inline void volk_32f_x2_subtract_32f_u_avx(float* cVector, | |
| 295 | const float* aVector, | ||
| 296 | const float* bVector, | ||
| 297 | unsigned int num_points) | ||
| 298 | { | ||
| 299 | 2 | unsigned int number = 0; | |
| 300 | 2 | const unsigned int eighthPoints = num_points / 8; | |
| 301 | |||
| 302 | 2 | float* cPtr = cVector; | |
| 303 | 2 | const float* aPtr = aVector; | |
| 304 | 2 | const float* bPtr = bVector; | |
| 305 | |||
| 306 | __m256 aVal, bVal, cVal; | ||
| 307 |
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32768 | for (; number < eighthPoints; number++) { |
| 308 | |||
| 309 | 32766 | aVal = _mm256_loadu_ps(aPtr); | |
| 310 | 32766 | bVal = _mm256_loadu_ps(bPtr); | |
| 311 | |||
| 312 | 32766 | cVal = _mm256_sub_ps(aVal, bVal); | |
| 313 | |||
| 314 | _mm256_storeu_ps(cPtr, cVal); // Store the results back into the C container | ||
| 315 | |||
| 316 | 32766 | aPtr += 8; | |
| 317 | 32766 | bPtr += 8; | |
| 318 | 32766 | cPtr += 8; | |
| 319 | } | ||
| 320 | |||
| 321 | 2 | number = eighthPoints * 8; | |
| 322 |
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16 | for (; number < num_points; number++) { |
| 323 | 14 | *cPtr++ = (*aPtr++) - (*bPtr++); | |
| 324 | } | ||
| 325 | 2 | } | |
| 326 | #endif /* LV_HAVE_AVX */ | ||
| 327 | |||
| 328 | #endif /* INCLUDED_volk_32f_x2_subtract_32f_u_H */ | ||
| 329 |