| 1 | /* |
| 2 | * Vector math abstractions. |
| 3 | * |
| 4 | * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 5 | * See https://llvm.org/LICENSE.txt for license information. |
| 6 | * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 7 | */ |
| 8 | |
| 9 | #ifndef _V_MATH_H |
| 10 | #define _V_MATH_H |
| 11 | |
| 12 | #ifndef WANT_VMATH |
| 13 | /* Enable the build of vector math code. */ |
| 14 | # define WANT_VMATH 1 |
| 15 | #endif |
| 16 | #if WANT_VMATH |
| 17 | |
| 18 | /* The goal of this header is to allow vector and scalar |
| 19 | build of the same algorithm, the provided intrinsic |
| 20 | wrappers are also vector length agnostic so they can |
| 21 | be implemented for SVE too (or other simd architectures) |
| 22 | and then the code should work on those targets too. */ |
| 23 | |
| 24 | #if SCALAR |
| 25 | #define V_NAME(x) __s_##x |
| 26 | #elif VPCS && __aarch64__ |
| 27 | #define V_NAME(x) __vn_##x |
| 28 | #define VPCS_ATTR __attribute__ ((aarch64_vector_pcs)) |
| 29 | #else |
| 30 | #define V_NAME(x) __v_##x |
| 31 | #endif |
| 32 | |
| 33 | #ifndef VPCS_ATTR |
| 34 | #define VPCS_ATTR |
| 35 | #endif |
| 36 | #ifndef VPCS_ALIAS |
| 37 | #define VPCS_ALIAS |
| 38 | #endif |
| 39 | |
| 40 | #include <stdint.h> |
| 41 | #include "math_config.h" |
| 42 | |
| 43 | typedef float f32_t; |
| 44 | typedef uint32_t u32_t; |
| 45 | typedef int32_t s32_t; |
| 46 | typedef double f64_t; |
| 47 | typedef uint64_t u64_t; |
| 48 | typedef int64_t s64_t; |
| 49 | |
| 50 | /* reinterpret as type1 from type2. */ |
| 51 | static inline u32_t |
| 52 | as_u32_f32 (f32_t x) |
| 53 | { |
| 54 | union { f32_t f; u32_t u; } r = {.f: x}; |
| 55 | return r.u; |
| 56 | } |
| 57 | static inline f32_t |
| 58 | as_f32_u32 (u32_t x) |
| 59 | { |
| 60 | union { u32_t u; f32_t f; } r = {.u: x}; |
| 61 | return r.f; |
| 62 | } |
| 63 | static inline s32_t |
| 64 | as_s32_u32 (u32_t x) |
| 65 | { |
| 66 | union { u32_t u; s32_t i; } r = {.u: x}; |
| 67 | return r.i; |
| 68 | } |
| 69 | static inline u32_t |
| 70 | as_u32_s32 (s32_t x) |
| 71 | { |
| 72 | union { s32_t i; u32_t u; } r = {.i: x}; |
| 73 | return r.u; |
| 74 | } |
| 75 | static inline u64_t |
| 76 | as_u64_f64 (f64_t x) |
| 77 | { |
| 78 | union { f64_t f; u64_t u; } r = {.f: x}; |
| 79 | return r.u; |
| 80 | } |
| 81 | static inline f64_t |
| 82 | as_f64_u64 (u64_t x) |
| 83 | { |
| 84 | union { u64_t u; f64_t f; } r = {.u: x}; |
| 85 | return r.f; |
| 86 | } |
| 87 | static inline s64_t |
| 88 | as_s64_u64 (u64_t x) |
| 89 | { |
| 90 | union { u64_t u; s64_t i; } r = {.u: x}; |
| 91 | return r.i; |
| 92 | } |
| 93 | static inline u64_t |
| 94 | as_u64_s64 (s64_t x) |
| 95 | { |
| 96 | union { s64_t i; u64_t u; } r = {.i: x}; |
| 97 | return r.u; |
| 98 | } |
| 99 | |
| 100 | #if SCALAR |
| 101 | #define V_SUPPORTED 1 |
| 102 | typedef f32_t v_f32_t; |
| 103 | typedef u32_t v_u32_t; |
| 104 | typedef s32_t v_s32_t; |
| 105 | typedef f64_t v_f64_t; |
| 106 | typedef u64_t v_u64_t; |
| 107 | typedef s64_t v_s64_t; |
| 108 | |
| 109 | static inline int |
| 110 | v_lanes32 (void) |
| 111 | { |
| 112 | return 1; |
| 113 | } |
| 114 | |
| 115 | static inline v_f32_t |
| 116 | v_f32 (f32_t x) |
| 117 | { |
| 118 | return x; |
| 119 | } |
| 120 | static inline v_u32_t |
| 121 | v_u32 (u32_t x) |
| 122 | { |
| 123 | return x; |
| 124 | } |
| 125 | static inline v_s32_t |
| 126 | v_s32 (s32_t x) |
| 127 | { |
| 128 | return x; |
| 129 | } |
| 130 | |
| 131 | static inline f32_t |
| 132 | v_get_f32 (v_f32_t x, int i) |
| 133 | { |
| 134 | return x; |
| 135 | } |
| 136 | static inline u32_t |
| 137 | v_get_u32 (v_u32_t x, int i) |
| 138 | { |
| 139 | return x; |
| 140 | } |
| 141 | static inline s32_t |
| 142 | v_get_s32 (v_s32_t x, int i) |
| 143 | { |
| 144 | return x; |
| 145 | } |
| 146 | |
| 147 | static inline void |
| 148 | v_set_f32 (v_f32_t *x, int i, f32_t v) |
| 149 | { |
| 150 | *x = v; |
| 151 | } |
| 152 | static inline void |
| 153 | v_set_u32 (v_u32_t *x, int i, u32_t v) |
| 154 | { |
| 155 | *x = v; |
| 156 | } |
| 157 | static inline void |
| 158 | v_set_s32 (v_s32_t *x, int i, s32_t v) |
| 159 | { |
| 160 | *x = v; |
| 161 | } |
| 162 | |
| 163 | /* true if any elements of a v_cond result is non-zero. */ |
| 164 | static inline int |
| 165 | v_any_u32 (v_u32_t x) |
| 166 | { |
| 167 | return x != 0; |
| 168 | } |
| 169 | /* to wrap the result of relational operators. */ |
| 170 | static inline v_u32_t |
| 171 | v_cond_u32 (v_u32_t x) |
| 172 | { |
| 173 | return x ? -1 : 0; |
| 174 | } |
| 175 | static inline v_f32_t |
| 176 | v_abs_f32 (v_f32_t x) |
| 177 | { |
| 178 | return __builtin_fabsf (x); |
| 179 | } |
| 180 | static inline v_f32_t |
| 181 | v_fma_f32 (v_f32_t x, v_f32_t y, v_f32_t z) |
| 182 | { |
| 183 | return __builtin_fmaf (x, y, z); |
| 184 | } |
| 185 | static inline v_f32_t |
| 186 | v_round_f32 (v_f32_t x) |
| 187 | { |
| 188 | return __builtin_roundf (x); |
| 189 | } |
| 190 | static inline v_s32_t |
| 191 | v_round_s32 (v_f32_t x) |
| 192 | { |
| 193 | return __builtin_lroundf (x); /* relies on -fno-math-errno. */ |
| 194 | } |
| 195 | /* convert to type1 from type2. */ |
| 196 | static inline v_f32_t |
| 197 | v_to_f32_s32 (v_s32_t x) |
| 198 | { |
| 199 | return x; |
| 200 | } |
| 201 | static inline v_f32_t |
| 202 | v_to_f32_u32 (v_u32_t x) |
| 203 | { |
| 204 | return x; |
| 205 | } |
| 206 | /* reinterpret as type1 from type2. */ |
| 207 | static inline v_u32_t |
| 208 | v_as_u32_f32 (v_f32_t x) |
| 209 | { |
| 210 | union { v_f32_t f; v_u32_t u; } r = {.f: x}; |
| 211 | return r.u; |
| 212 | } |
| 213 | static inline v_f32_t |
| 214 | v_as_f32_u32 (v_u32_t x) |
| 215 | { |
| 216 | union { v_u32_t u; v_f32_t f; } r = {.u: x}; |
| 217 | return r.f; |
| 218 | } |
| 219 | static inline v_s32_t |
| 220 | v_as_s32_u32 (v_u32_t x) |
| 221 | { |
| 222 | union { v_u32_t u; v_s32_t i; } r = {.u: x}; |
| 223 | return r.i; |
| 224 | } |
| 225 | static inline v_u32_t |
| 226 | v_as_u32_s32 (v_s32_t x) |
| 227 | { |
| 228 | union { v_s32_t i; v_u32_t u; } r = {.i: x}; |
| 229 | return r.u; |
| 230 | } |
| 231 | static inline v_f32_t |
| 232 | v_lookup_f32 (const f32_t *tab, v_u32_t idx) |
| 233 | { |
| 234 | return tab[idx]; |
| 235 | } |
| 236 | static inline v_u32_t |
| 237 | v_lookup_u32 (const u32_t *tab, v_u32_t idx) |
| 238 | { |
| 239 | return tab[idx]; |
| 240 | } |
| 241 | static inline v_f32_t |
| 242 | v_call_f32 (f32_t (*f) (f32_t), v_f32_t x, v_f32_t y, v_u32_t p) |
| 243 | { |
| 244 | return f (x); |
| 245 | } |
| 246 | static inline v_f32_t |
| 247 | v_call2_f32 (f32_t (*f) (f32_t, f32_t), v_f32_t x1, v_f32_t x2, v_f32_t y, |
| 248 | v_u32_t p) |
| 249 | { |
| 250 | return f (x1, x2); |
| 251 | } |
| 252 | |
| 253 | static inline int |
| 254 | v_lanes64 (void) |
| 255 | { |
| 256 | return 1; |
| 257 | } |
| 258 | static inline v_f64_t |
| 259 | v_f64 (f64_t x) |
| 260 | { |
| 261 | return x; |
| 262 | } |
| 263 | static inline v_u64_t |
| 264 | v_u64 (u64_t x) |
| 265 | { |
| 266 | return x; |
| 267 | } |
| 268 | static inline v_s64_t |
| 269 | v_s64 (s64_t x) |
| 270 | { |
| 271 | return x; |
| 272 | } |
| 273 | static inline f64_t |
| 274 | v_get_f64 (v_f64_t x, int i) |
| 275 | { |
| 276 | return x; |
| 277 | } |
| 278 | static inline void |
| 279 | v_set_f64 (v_f64_t *x, int i, f64_t v) |
| 280 | { |
| 281 | *x = v; |
| 282 | } |
| 283 | /* true if any elements of a v_cond result is non-zero. */ |
| 284 | static inline int |
| 285 | v_any_u64 (v_u64_t x) |
| 286 | { |
| 287 | return x != 0; |
| 288 | } |
| 289 | /* to wrap the result of relational operators. */ |
| 290 | static inline v_u64_t |
| 291 | v_cond_u64 (v_u64_t x) |
| 292 | { |
| 293 | return x ? -1 : 0; |
| 294 | } |
| 295 | static inline v_f64_t |
| 296 | v_abs_f64 (v_f64_t x) |
| 297 | { |
| 298 | return __builtin_fabs (x); |
| 299 | } |
| 300 | static inline v_f64_t |
| 301 | v_fma_f64 (v_f64_t x, v_f64_t y, v_f64_t z) |
| 302 | { |
| 303 | return __builtin_fma (x, y, z); |
| 304 | } |
| 305 | static inline v_f64_t |
| 306 | v_round_f64 (v_f64_t x) |
| 307 | { |
| 308 | return __builtin_round (x); |
| 309 | } |
| 310 | static inline v_s64_t |
| 311 | v_round_s64 (v_f64_t x) |
| 312 | { |
| 313 | return __builtin_lround (x); /* relies on -fno-math-errno. */ |
| 314 | } |
| 315 | /* convert to type1 from type2. */ |
| 316 | static inline v_f64_t |
| 317 | v_to_f64_s64 (v_s64_t x) |
| 318 | { |
| 319 | return x; |
| 320 | } |
| 321 | static inline v_f64_t |
| 322 | v_to_f64_u64 (v_u64_t x) |
| 323 | { |
| 324 | return x; |
| 325 | } |
| 326 | /* reinterpret as type1 from type2. */ |
| 327 | static inline v_u64_t |
| 328 | v_as_u64_f64 (v_f64_t x) |
| 329 | { |
| 330 | union { v_f64_t f; v_u64_t u; } r = {.f: x}; |
| 331 | return r.u; |
| 332 | } |
| 333 | static inline v_f64_t |
| 334 | v_as_f64_u64 (v_u64_t x) |
| 335 | { |
| 336 | union { v_u64_t u; v_f64_t f; } r = {.u: x}; |
| 337 | return r.f; |
| 338 | } |
| 339 | static inline v_s64_t |
| 340 | v_as_s64_u64 (v_u64_t x) |
| 341 | { |
| 342 | union { v_u64_t u; v_s64_t i; } r = {.u: x}; |
| 343 | return r.i; |
| 344 | } |
| 345 | static inline v_u64_t |
| 346 | v_as_u64_s64 (v_s64_t x) |
| 347 | { |
| 348 | union { v_s64_t i; v_u64_t u; } r = {.i: x}; |
| 349 | return r.u; |
| 350 | } |
| 351 | static inline v_f64_t |
| 352 | v_lookup_f64 (const f64_t *tab, v_u64_t idx) |
| 353 | { |
| 354 | return tab[idx]; |
| 355 | } |
| 356 | static inline v_u64_t |
| 357 | v_lookup_u64 (const u64_t *tab, v_u64_t idx) |
| 358 | { |
| 359 | return tab[idx]; |
| 360 | } |
| 361 | static inline v_f64_t |
| 362 | v_call_f64 (f64_t (*f) (f64_t), v_f64_t x, v_f64_t y, v_u64_t p) |
| 363 | { |
| 364 | return f (x); |
| 365 | } |
| 366 | |
| 367 | #elif __aarch64__ |
| 368 | #define V_SUPPORTED 1 |
| 369 | #include <arm_neon.h> |
| 370 | typedef float32x4_t v_f32_t; |
| 371 | typedef uint32x4_t v_u32_t; |
| 372 | typedef int32x4_t v_s32_t; |
| 373 | typedef float64x2_t v_f64_t; |
| 374 | typedef uint64x2_t v_u64_t; |
| 375 | typedef int64x2_t v_s64_t; |
| 376 | |
| 377 | static inline int |
| 378 | v_lanes32 (void) |
| 379 | { |
| 380 | return 4; |
| 381 | } |
| 382 | |
| 383 | static inline v_f32_t |
| 384 | v_f32 (f32_t x) |
| 385 | { |
| 386 | return (v_f32_t){x, x, x, x}; |
| 387 | } |
| 388 | static inline v_u32_t |
| 389 | v_u32 (u32_t x) |
| 390 | { |
| 391 | return (v_u32_t){x, x, x, x}; |
| 392 | } |
| 393 | static inline v_s32_t |
| 394 | v_s32 (s32_t x) |
| 395 | { |
| 396 | return (v_s32_t){x, x, x, x}; |
| 397 | } |
| 398 | |
| 399 | static inline f32_t |
| 400 | v_get_f32 (v_f32_t x, int i) |
| 401 | { |
| 402 | return x[i]; |
| 403 | } |
| 404 | static inline u32_t |
| 405 | v_get_u32 (v_u32_t x, int i) |
| 406 | { |
| 407 | return x[i]; |
| 408 | } |
| 409 | static inline s32_t |
| 410 | v_get_s32 (v_s32_t x, int i) |
| 411 | { |
| 412 | return x[i]; |
| 413 | } |
| 414 | |
| 415 | static inline void |
| 416 | v_set_f32 (v_f32_t *x, int i, f32_t v) |
| 417 | { |
| 418 | (*x)[i] = v; |
| 419 | } |
| 420 | static inline void |
| 421 | v_set_u32 (v_u32_t *x, int i, u32_t v) |
| 422 | { |
| 423 | (*x)[i] = v; |
| 424 | } |
| 425 | static inline void |
| 426 | v_set_s32 (v_s32_t *x, int i, s32_t v) |
| 427 | { |
| 428 | (*x)[i] = v; |
| 429 | } |
| 430 | |
| 431 | /* true if any elements of a v_cond result is non-zero. */ |
| 432 | static inline int |
| 433 | v_any_u32 (v_u32_t x) |
| 434 | { |
| 435 | /* assume elements in x are either 0 or -1u. */ |
| 436 | return vpaddd_u64 (vreinterpretq_u64_u32 (x)) != 0; |
| 437 | } |
| 438 | /* to wrap the result of relational operators. */ |
| 439 | static inline v_u32_t |
| 440 | v_cond_u32 (v_u32_t x) |
| 441 | { |
| 442 | return x; |
| 443 | } |
| 444 | static inline v_f32_t |
| 445 | v_abs_f32 (v_f32_t x) |
| 446 | { |
| 447 | return vabsq_f32 (x); |
| 448 | } |
| 449 | static inline v_f32_t |
| 450 | v_fma_f32 (v_f32_t x, v_f32_t y, v_f32_t z) |
| 451 | { |
| 452 | return vfmaq_f32 (z, x, y); |
| 453 | } |
| 454 | static inline v_f32_t |
| 455 | v_round_f32 (v_f32_t x) |
| 456 | { |
| 457 | return vrndaq_f32 (x); |
| 458 | } |
| 459 | static inline v_s32_t |
| 460 | v_round_s32 (v_f32_t x) |
| 461 | { |
| 462 | return vcvtaq_s32_f32 (x); |
| 463 | } |
| 464 | /* convert to type1 from type2. */ |
| 465 | static inline v_f32_t |
| 466 | v_to_f32_s32 (v_s32_t x) |
| 467 | { |
| 468 | return (v_f32_t){x[0], x[1], x[2], x[3]}; |
| 469 | } |
| 470 | static inline v_f32_t |
| 471 | v_to_f32_u32 (v_u32_t x) |
| 472 | { |
| 473 | return (v_f32_t){x[0], x[1], x[2], x[3]}; |
| 474 | } |
| 475 | /* reinterpret as type1 from type2. */ |
| 476 | static inline v_u32_t |
| 477 | v_as_u32_f32 (v_f32_t x) |
| 478 | { |
| 479 | union { v_f32_t f; v_u32_t u; } r = {x}; |
| 480 | return r.u; |
| 481 | } |
| 482 | static inline v_f32_t |
| 483 | v_as_f32_u32 (v_u32_t x) |
| 484 | { |
| 485 | union { v_u32_t u; v_f32_t f; } r = {x}; |
| 486 | return r.f; |
| 487 | } |
| 488 | static inline v_s32_t |
| 489 | v_as_s32_u32 (v_u32_t x) |
| 490 | { |
| 491 | union { v_u32_t u; v_s32_t i; } r = {x}; |
| 492 | return r.i; |
| 493 | } |
| 494 | static inline v_u32_t |
| 495 | v_as_u32_s32 (v_s32_t x) |
| 496 | { |
| 497 | union { v_s32_t i; v_u32_t u; } r = {x}; |
| 498 | return r.u; |
| 499 | } |
| 500 | static inline v_f32_t |
| 501 | v_lookup_f32 (const f32_t *tab, v_u32_t idx) |
| 502 | { |
| 503 | return (v_f32_t){tab[idx[0]], tab[idx[1]], tab[idx[2]], tab[idx[3]]}; |
| 504 | } |
| 505 | static inline v_u32_t |
| 506 | v_lookup_u32 (const u32_t *tab, v_u32_t idx) |
| 507 | { |
| 508 | return (v_u32_t){tab[idx[0]], tab[idx[1]], tab[idx[2]], tab[idx[3]]}; |
| 509 | } |
| 510 | static inline v_f32_t |
| 511 | v_call_f32 (f32_t (*f) (f32_t), v_f32_t x, v_f32_t y, v_u32_t p) |
| 512 | { |
| 513 | return (v_f32_t){p[0] ? f (x[0]) : y[0], p[1] ? f (x[1]) : y[1], |
| 514 | p[2] ? f (x[2]) : y[2], p[3] ? f (x[3]) : y[3]}; |
| 515 | } |
| 516 | static inline v_f32_t |
| 517 | v_call2_f32 (f32_t (*f) (f32_t, f32_t), v_f32_t x1, v_f32_t x2, v_f32_t y, |
| 518 | v_u32_t p) |
| 519 | { |
| 520 | return ( |
| 521 | v_f32_t){p[0] ? f (x1[0], x2[0]) : y[0], p[1] ? f (x1[1], x2[1]) : y[1], |
| 522 | p[2] ? f (x1[2], x2[2]) : y[2], p[3] ? f (x1[3], x2[3]) : y[3]}; |
| 523 | } |
| 524 | |
| 525 | static inline int |
| 526 | v_lanes64 (void) |
| 527 | { |
| 528 | return 2; |
| 529 | } |
| 530 | static inline v_f64_t |
| 531 | v_f64 (f64_t x) |
| 532 | { |
| 533 | return (v_f64_t){x, x}; |
| 534 | } |
| 535 | static inline v_u64_t |
| 536 | v_u64 (u64_t x) |
| 537 | { |
| 538 | return (v_u64_t){x, x}; |
| 539 | } |
| 540 | static inline v_s64_t |
| 541 | v_s64 (s64_t x) |
| 542 | { |
| 543 | return (v_s64_t){x, x}; |
| 544 | } |
| 545 | static inline f64_t |
| 546 | v_get_f64 (v_f64_t x, int i) |
| 547 | { |
| 548 | return x[i]; |
| 549 | } |
| 550 | static inline void |
| 551 | v_set_f64 (v_f64_t *x, int i, f64_t v) |
| 552 | { |
| 553 | (*x)[i] = v; |
| 554 | } |
| 555 | /* true if any elements of a v_cond result is non-zero. */ |
| 556 | static inline int |
| 557 | v_any_u64 (v_u64_t x) |
| 558 | { |
| 559 | /* assume elements in x are either 0 or -1u. */ |
| 560 | return vpaddd_u64 (x) != 0; |
| 561 | } |
| 562 | /* to wrap the result of relational operators. */ |
| 563 | static inline v_u64_t |
| 564 | v_cond_u64 (v_u64_t x) |
| 565 | { |
| 566 | return x; |
| 567 | } |
| 568 | static inline v_f64_t |
| 569 | v_abs_f64 (v_f64_t x) |
| 570 | { |
| 571 | return vabsq_f64 (x); |
| 572 | } |
| 573 | static inline v_f64_t |
| 574 | v_fma_f64 (v_f64_t x, v_f64_t y, v_f64_t z) |
| 575 | { |
| 576 | return vfmaq_f64 (z, x, y); |
| 577 | } |
| 578 | static inline v_f64_t |
| 579 | v_round_f64 (v_f64_t x) |
| 580 | { |
| 581 | return vrndaq_f64 (x); |
| 582 | } |
| 583 | static inline v_s64_t |
| 584 | v_round_s64 (v_f64_t x) |
| 585 | { |
| 586 | return vcvtaq_s64_f64 (x); |
| 587 | } |
| 588 | /* convert to type1 from type2. */ |
| 589 | static inline v_f64_t |
| 590 | v_to_f64_s64 (v_s64_t x) |
| 591 | { |
| 592 | return (v_f64_t){x[0], x[1]}; |
| 593 | } |
| 594 | static inline v_f64_t |
| 595 | v_to_f64_u64 (v_u64_t x) |
| 596 | { |
| 597 | return (v_f64_t){x[0], x[1]}; |
| 598 | } |
| 599 | /* reinterpret as type1 from type2. */ |
| 600 | static inline v_u64_t |
| 601 | v_as_u64_f64 (v_f64_t x) |
| 602 | { |
| 603 | union { v_f64_t f; v_u64_t u; } r = {x}; |
| 604 | return r.u; |
| 605 | } |
| 606 | static inline v_f64_t |
| 607 | v_as_f64_u64 (v_u64_t x) |
| 608 | { |
| 609 | union { v_u64_t u; v_f64_t f; } r = {x}; |
| 610 | return r.f; |
| 611 | } |
| 612 | static inline v_s64_t |
| 613 | v_as_s64_u64 (v_u64_t x) |
| 614 | { |
| 615 | union { v_u64_t u; v_s64_t i; } r = {x}; |
| 616 | return r.i; |
| 617 | } |
| 618 | static inline v_u64_t |
| 619 | v_as_u64_s64 (v_s64_t x) |
| 620 | { |
| 621 | union { v_s64_t i; v_u64_t u; } r = {x}; |
| 622 | return r.u; |
| 623 | } |
| 624 | static inline v_f64_t |
| 625 | v_lookup_f64 (const f64_t *tab, v_u64_t idx) |
| 626 | { |
| 627 | return (v_f64_t){tab[idx[0]], tab[idx[1]]}; |
| 628 | } |
| 629 | static inline v_u64_t |
| 630 | v_lookup_u64 (const u64_t *tab, v_u64_t idx) |
| 631 | { |
| 632 | return (v_u64_t){tab[idx[0]], tab[idx[1]]}; |
| 633 | } |
| 634 | static inline v_f64_t |
| 635 | v_call_f64 (f64_t (*f) (f64_t), v_f64_t x, v_f64_t y, v_u64_t p) |
| 636 | { |
| 637 | return (v_f64_t){p[0] ? f (x[0]) : y[0], p[1] ? f (x[1]) : y[1]}; |
| 638 | } |
| 639 | #endif |
| 640 | |
| 641 | #endif |
| 642 | #endif |
| 643 | |