1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667

```
//! SIMD compiler intrinsics.
//!
//! In this module, a "vector" is any `repr(simd)` type.
extern "rust-intrinsic" {
/// Insert an element into a vector, returning the updated vector.
///
/// `T` must be a vector with element type `U`.
///
/// # Safety
///
/// `idx` must be in-bounds of the vector.
#[rustc_nounwind]
pub fn simd_insert<T, U>(x: T, idx: u32, val: U) -> T;
/// Extract an element from a vector.
///
/// `T` must be a vector with element type `U`.
///
/// # Safety
///
/// `idx` must be in-bounds of the vector.
#[rustc_nounwind]
pub fn simd_extract<T, U>(x: T, idx: u32) -> U;
/// Add two simd vectors elementwise.
///
/// `T` must be a vector of integer or floating point primitive types.
#[rustc_nounwind]
pub fn simd_add<T>(x: T, y: T) -> T;
/// Subtract `rhs` from `lhs` elementwise.
///
/// `T` must be a vector of integer or floating point primitive types.
#[rustc_nounwind]
pub fn simd_sub<T>(lhs: T, rhs: T) -> T;
/// Multiply two simd vectors elementwise.
///
/// `T` must be a vector of integer or floating point primitive types.
#[rustc_nounwind]
pub fn simd_mul<T>(x: T, y: T) -> T;
/// Divide `lhs` by `rhs` elementwise.
///
/// `T` must be a vector of integer or floating point primitive types.
///
/// # Safety
/// For integers, `rhs` must not contain any zero elements.
/// Additionally for signed integers, `<int>::MIN / -1` is undefined behavior.
#[rustc_nounwind]
pub fn simd_div<T>(lhs: T, rhs: T) -> T;
/// Remainder of two vectors elementwise
///
/// `T` must be a vector of integer or floating point primitive types.
///
/// # Safety
/// For integers, `rhs` must not contain any zero elements.
/// Additionally for signed integers, `<int>::MIN / -1` is undefined behavior.
#[rustc_nounwind]
pub fn simd_rem<T>(lhs: T, rhs: T) -> T;
/// Elementwise vector left shift, with UB on overflow.
///
/// Shift `lhs` left by `rhs`, shifting in sign bits for signed types.
///
/// `T` must be a vector of integer primitive types.
///
/// # Safety
///
/// Each element of `rhs` must be less than `<int>::BITS`.
#[rustc_nounwind]
pub fn simd_shl<T>(lhs: T, rhs: T) -> T;
/// Elementwise vector right shift, with UB on overflow.
///
/// `T` must be a vector of integer primitive types.
///
/// Shift `lhs` right by `rhs`, shifting in sign bits for signed types.
///
/// # Safety
///
/// Each element of `rhs` must be less than `<int>::BITS`.
#[rustc_nounwind]
pub fn simd_shr<T>(lhs: T, rhs: T) -> T;
/// Elementwise vector "and".
///
/// `T` must be a vector of integer primitive types.
#[rustc_nounwind]
pub fn simd_and<T>(x: T, y: T) -> T;
/// Elementwise vector "or".
///
/// `T` must be a vector of integer primitive types.
#[rustc_nounwind]
pub fn simd_or<T>(x: T, y: T) -> T;
/// Elementwise vector "exclusive or".
///
/// `T` must be a vector of integer primitive types.
#[rustc_nounwind]
pub fn simd_xor<T>(x: T, y: T) -> T;
/// Numerically cast a vector, elementwise.
///
/// `T` and `U` must be vectors of integer or floating point primitive types, and must have the
/// same length.
///
/// When casting floats to integers, the result is truncated. Out-of-bounds result lead to UB.
/// When casting integers to floats, the result is rounded.
/// Otherwise, truncates or extends the value, maintaining the sign for signed integers.
///
/// # Safety
/// Casting from integer types is always safe.
/// Casting between two float types is also always safe.
///
/// Casting floats to integers truncates, following the same rules as `to_int_unchecked`.
/// Specifically, each element must:
/// * Not be `NaN`
/// * Not be infinite
/// * Be representable in the return type, after truncating off its fractional part
#[rustc_nounwind]
pub fn simd_cast<T, U>(x: T) -> U;
/// Numerically cast a vector, elementwise.
///
/// `T` and `U` be a vectors of integer or floating point primitive types, and must have the
/// same length.
///
/// Like `simd_cast`, but saturates float-to-integer conversions (NaN becomes 0).
/// This matches regular `as` and is always safe.
///
/// When casting floats to integers, the result is truncated.
/// When casting integers to floats, the result is rounded.
/// Otherwise, truncates or extends the value, maintaining the sign for signed integers.
#[rustc_nounwind]
pub fn simd_as<T, U>(x: T) -> U;
/// Elementwise negation of a vector.
///
/// `T` must be a vector of integer or floating-point primitive types.
///
/// Rust panics for `-<int>::Min` due to overflow, but it is not UB with this intrinsic.
#[rustc_nounwind]
pub fn simd_neg<T>(x: T) -> T;
/// Elementwise absolute value of a vector.
///
/// `T` must be a vector of floating-point primitive types.
#[rustc_nounwind]
pub fn simd_fabs<T>(x: T) -> T;
/// Elementwise minimum of two vectors.
///
/// `T` must be a vector of floating-point primitive types.
///
/// Follows IEEE-754 `minNum` semantics.
#[rustc_nounwind]
pub fn simd_fmin<T>(x: T, y: T) -> T;
/// Elementwise maximum of two vectors.
///
/// `T` must be a vector of floating-point primitive types.
///
/// Follows IEEE-754 `maxNum` semantics.
#[rustc_nounwind]
pub fn simd_fmax<T>(x: T, y: T) -> T;
/// Tests elementwise equality of two vectors.
///
/// `T` must be a vector of floating-point primitive types.
///
/// `U` must be a vector of integers with the same number of elements and element size as `T`.
///
/// Returns `0` for false and `!0` for true.
#[rustc_nounwind]
pub fn simd_eq<T, U>(x: T, y: T) -> U;
/// Tests elementwise inequality equality of two vectors.
///
/// `T` must be a vector of floating-point primitive types.
///
/// `U` must be a vector of integers with the same number of elements and element size as `T`.
///
/// Returns `0` for false and `!0` for true.
#[rustc_nounwind]
pub fn simd_ne<T, U>(x: T, y: T) -> U;
/// Tests if `x` is less than `y`, elementwise.
///
/// `T` must be a vector of floating-point primitive types.
///
/// `U` must be a vector of integers with the same number of elements and element size as `T`.
///
/// Returns `0` for false and `!0` for true.
#[rustc_nounwind]
pub fn simd_lt<T, U>(x: T, y: T) -> U;
/// Tests if `x` is less than or equal to `y`, elementwise.
///
/// `T` must be a vector of floating-point primitive types.
///
/// `U` must be a vector of integers with the same number of elements and element size as `T`.
///
/// Returns `0` for false and `!0` for true.
#[rustc_nounwind]
pub fn simd_le<T, U>(x: T, y: T) -> U;
/// Tests if `x` is greater than `y`, elementwise.
///
/// `T` must be a vector of floating-point primitive types.
///
/// `U` must be a vector of integers with the same number of elements and element size as `T`.
///
/// Returns `0` for false and `!0` for true.
#[rustc_nounwind]
pub fn simd_gt<T, U>(x: T, y: T) -> U;
/// Tests if `x` is greater than or equal to `y`, elementwise.
///
/// `T` must be a vector of floating-point primitive types.
///
/// `U` must be a vector of integers with the same number of elements and element size as `T`.
///
/// Returns `0` for false and `!0` for true.
#[rustc_nounwind]
pub fn simd_ge<T, U>(x: T, y: T) -> U;
/// Shuffle two vectors by const indices.
///
/// `T` must be a vector.
///
/// `U` must be a **const** array of `i32`s. This means it must either refer to a named
/// const or be given as an inline const expression (`const { ... }`).
///
/// `V` must be a vector with the same element type as `T` and the same length as `U`.
///
/// Returns a new vector such that element `i` is selected from `xy[idx[i]]`, where `xy`
/// is the concatenation of `x` and `y`. It is a compile-time error if `idx[i]` is out-of-bounds
/// of `xy`.
#[rustc_nounwind]
pub fn simd_shuffle<T, U, V>(x: T, y: T, idx: U) -> V;
/// Shuffle two vectors by const indices.
///
/// `T` must be a vector.
///
/// `U` must be a vector with the same element type as `T` and the same length as `IDX`.
///
/// Returns a new vector such that element `i` is selected from `xy[IDX[i]]`, where `xy`
/// is the concatenation of `x` and `y`. It is a compile-time error if `IDX[i]` is out-of-bounds
/// of `xy`.
#[rustc_nounwind]
pub fn simd_shuffle_generic<T, U, const IDX: &'static [u32]>(x: T, y: T) -> U;
/// Read a vector of pointers.
///
/// `T` must be a vector.
///
/// `U` must be a vector of pointers to the element type of `T`, with the same length as `T`.
///
/// `V` must be a vector of integers with the same length as `T` (but any element size).
///
/// For each pointer in `ptr`, if the corresponding value in `mask` is `!0`, read the pointer.
/// Otherwise if the corresponding value in `mask` is `0`, return the corresponding value from
/// `val`.
///
/// # Safety
/// Unmasked values in `T` must be readable as if by `<ptr>::read` (e.g. aligned to the element
/// type).
///
/// `mask` must only contain `0` or `!0` values.
#[rustc_nounwind]
pub fn simd_gather<T, U, V>(val: T, ptr: U, mask: V) -> T;
/// Write to a vector of pointers.
///
/// `T` must be a vector.
///
/// `U` must be a vector of pointers to the element type of `T`, with the same length as `T`.
///
/// `V` must be a vector of integers with the same length as `T` (but any element size).
///
/// For each pointer in `ptr`, if the corresponding value in `mask` is `!0`, write the
/// corresponding value in `val` to the pointer.
/// Otherwise if the corresponding value in `mask` is `0`, do nothing.
///
/// The stores happen in left-to-right order.
/// (This is relevant in case two of the stores overlap.)
///
/// # Safety
/// Unmasked values in `T` must be writeable as if by `<ptr>::write` (e.g. aligned to the element
/// type).
///
/// `mask` must only contain `0` or `!0` values.
#[rustc_nounwind]
pub fn simd_scatter<T, U, V>(val: T, ptr: U, mask: V);
/// Read a vector of pointers.
///
/// `T` must be a vector.
///
/// `U` must be a pointer to the element type of `T`
///
/// `V` must be a vector of integers with the same length as `T` (but any element size).
///
/// For each element, if the corresponding value in `mask` is `!0`, read the corresponding
/// pointer offset from `ptr`.
/// The first element is loaded from `ptr`, the second from `ptr.wrapping_offset(1)` and so on.
/// Otherwise if the corresponding value in `mask` is `0`, return the corresponding value from
/// `val`.
///
/// # Safety
/// Unmasked values in `T` must be readable as if by `<ptr>::read` (e.g. aligned to the element
/// type).
///
/// `mask` must only contain `0` or `!0` values.
#[rustc_nounwind]
pub fn simd_masked_load<V, U, T>(mask: V, ptr: U, val: T) -> T;
/// Write to a vector of pointers.
///
/// `T` must be a vector.
///
/// `U` must be a pointer to the element type of `T`
///
/// `V` must be a vector of integers with the same length as `T` (but any element size).
///
/// For each element, if the corresponding value in `mask` is `!0`, write the corresponding
/// value in `val` to the pointer offset from `ptr`.
/// The first element is written to `ptr`, the second to `ptr.wrapping_offset(1)` and so on.
/// Otherwise if the corresponding value in `mask` is `0`, do nothing.
///
/// # Safety
/// Unmasked values in `T` must be writeable as if by `<ptr>::write` (e.g. aligned to the element
/// type).
///
/// `mask` must only contain `0` or `!0` values.
#[rustc_nounwind]
pub fn simd_masked_store<V, U, T>(mask: V, ptr: U, val: T);
/// Add two simd vectors elementwise, with saturation.
///
/// `T` must be a vector of integer primitive types.
#[rustc_nounwind]
pub fn simd_saturating_add<T>(x: T, y: T) -> T;
/// Subtract two simd vectors elementwise, with saturation.
///
/// `T` must be a vector of integer primitive types.
///
/// Subtract `rhs` from `lhs`.
#[rustc_nounwind]
pub fn simd_saturating_sub<T>(lhs: T, rhs: T) -> T;
/// Add elements within a vector from left to right.
///
/// `T` must be a vector of integer or floating-point primitive types.
///
/// `U` must be the element type of `T`.
///
/// Starting with the value `y`, add the elements of `x` and accumulate.
#[rustc_nounwind]
pub fn simd_reduce_add_ordered<T, U>(x: T, y: U) -> U;
/// Add elements within a vector in arbitrary order. May also be re-associated with
/// unordered additions on the inputs/outputs.
///
/// `T` must be a vector of integer or floating-point primitive types.
///
/// `U` must be the element type of `T`.
#[rustc_nounwind]
pub fn simd_reduce_add_unordered<T, U>(x: T) -> U;
/// Multiply elements within a vector from left to right.
///
/// `T` must be a vector of integer or floating-point primitive types.
///
/// `U` must be the element type of `T`.
///
/// Starting with the value `y`, multiply the elements of `x` and accumulate.
#[rustc_nounwind]
pub fn simd_reduce_mul_ordered<T, U>(x: T, y: U) -> U;
/// Multiply elements within a vector in arbitrary order. May also be re-associated with
/// unordered additions on the inputs/outputs.
///
/// `T` must be a vector of integer or floating-point primitive types.
///
/// `U` must be the element type of `T`.
#[rustc_nounwind]
pub fn simd_reduce_mul_unordered<T, U>(x: T) -> U;
/// Check if all mask values are true.
///
/// `T` must be a vector of integer primitive types.
///
/// # Safety
/// `x` must contain only `0` or `!0`.
#[rustc_nounwind]
pub fn simd_reduce_all<T>(x: T) -> bool;
/// Check if any mask value is true.
///
/// `T` must be a vector of integer primitive types.
///
/// # Safety
/// `x` must contain only `0` or `!0`.
#[rustc_nounwind]
pub fn simd_reduce_any<T>(x: T) -> bool;
/// Return the maximum element of a vector.
///
/// `T` must be a vector of integer or floating-point primitive types.
///
/// `U` must be the element type of `T`.
///
/// For floating-point values, uses IEEE-754 `maxNum`.
#[rustc_nounwind]
pub fn simd_reduce_max<T, U>(x: T) -> U;
/// Return the minimum element of a vector.
///
/// `T` must be a vector of integer or floating-point primitive types.
///
/// `U` must be the element type of `T`.
///
/// For floating-point values, uses IEEE-754 `minNum`.
#[rustc_nounwind]
pub fn simd_reduce_min<T, U>(x: T) -> U;
/// Logical "and" all elements together.
///
/// `T` must be a vector of integer or floating-point primitive types.
///
/// `U` must be the element type of `T`.
#[rustc_nounwind]
pub fn simd_reduce_and<T, U>(x: T) -> U;
/// Logical "or" all elements together.
///
/// `T` must be a vector of integer or floating-point primitive types.
///
/// `U` must be the element type of `T`.
#[rustc_nounwind]
pub fn simd_reduce_or<T, U>(x: T) -> U;
/// Logical "exclusive or" all elements together.
///
/// `T` must be a vector of integer or floating-point primitive types.
///
/// `U` must be the element type of `T`.
#[rustc_nounwind]
pub fn simd_reduce_xor<T, U>(x: T) -> U;
/// Truncate an integer vector to a bitmask.
///
/// `T` must be an integer vector.
///
/// `U` must be either the smallest unsigned integer with at least as many bits as the length
/// of `T`, or the smallest array of `u8` with at least as many bits as the length of `T`.
///
/// Each element is truncated to a single bit and packed into the result.
///
/// No matter whether the output is an array or an unsigned integer, it is treated as a single
/// contiguous list of bits. The bitmask is always packed on the least-significant side of the
/// output, and padded with 0s in the most-significant bits. The order of the bits depends on
/// endianness:
///
/// * On little endian, the least significant bit corresponds to the first vector element.
/// * On big endian, the least significant bit corresponds to the last vector element.
///
/// For example, `[!0, 0, !0, !0]` packs to
/// - `0b1101u8` or `[0b1101]` on little endian, and
/// - `0b1011u8` or `[0b1011]` on big endian.
///
/// To consider a larger example,
/// `[!0, 0, 0, 0, 0, 0, 0, 0, !0, !0, 0, 0, 0, 0, !0, 0]` packs to
/// - `0b0100001100000001u16` or `[0b00000001, 0b01000011]` on little endian, and
/// - `0b1000000011000010u16` or `[0b10000000, 0b11000010]` on big endian.
///
/// And finally, a non-power-of-2 example with multiple bytes:
/// `[!0, !0, 0, !0, 0, 0, !0, 0, !0, 0]` packs to
/// - `0b0101001011u16` or `[0b01001011, 0b01]` on little endian, and
/// - `0b1101001010u16` or `[0b11, 0b01001010]` on big endian.
///
/// # Safety
/// `x` must contain only `0` and `!0`.
#[rustc_nounwind]
pub fn simd_bitmask<T, U>(x: T) -> U;
/// Select elements from a mask.
///
/// `M` must be an integer vector.
///
/// `T` must be a vector with the same number of elements as `M`.
///
/// For each element, if the corresponding value in `mask` is `!0`, select the element from
/// `if_true`. If the corresponding value in `mask` is `0`, select the element from
/// `if_false`.
///
/// # Safety
/// `mask` must only contain `0` and `!0`.
#[rustc_nounwind]
pub fn simd_select<M, T>(mask: M, if_true: T, if_false: T) -> T;
/// Select elements from a bitmask.
///
/// `M` must be an unsigned integer or array of `u8`, matching `simd_bitmask`.
///
/// `T` must be a vector.
///
/// For each element, if the bit in `mask` is `1`, select the element from
/// `if_true`. If the corresponding bit in `mask` is `0`, select the element from
/// `if_false`.
///
/// The bitmask bit order matches `simd_bitmask`.
///
/// # Safety
/// Padding bits must be all zero.
#[rustc_nounwind]
pub fn simd_select_bitmask<M, T>(m: M, yes: T, no: T) -> T;
/// Elementwise calculates the offset from a pointer vector, potentially wrapping.
///
/// `T` must be a vector of pointers.
///
/// `U` must be a vector of `isize` or `usize` with the same number of elements as `T`.
///
/// Operates as if by `<ptr>::wrapping_offset`.
#[rustc_nounwind]
pub fn simd_arith_offset<T, U>(ptr: T, offset: U) -> T;
/// Cast a vector of pointers.
///
/// `T` and `U` must be vectors of pointers with the same number of elements.
#[rustc_nounwind]
pub fn simd_cast_ptr<T, U>(ptr: T) -> U;
/// Expose a vector of pointers as a vector of addresses.
///
/// `T` must be a vector of pointers.
///
/// `U` must be a vector of `usize` with the same length as `T`.
#[rustc_nounwind]
pub fn simd_expose_provenance<T, U>(ptr: T) -> U;
/// Create a vector of pointers from a vector of addresses.
///
/// `T` must be a vector of `usize`.
///
/// `U` must be a vector of pointers, with the same length as `T`.
#[rustc_nounwind]
pub fn simd_with_exposed_provenance<T, U>(addr: T) -> U;
/// Swap bytes of each element.
///
/// `T` must be a vector of integers.
#[rustc_nounwind]
pub fn simd_bswap<T>(x: T) -> T;
/// Reverse bits of each element.
///
/// `T` must be a vector of integers.
#[rustc_nounwind]
pub fn simd_bitreverse<T>(x: T) -> T;
/// Count the leading zeros of each element.
///
/// `T` must be a vector of integers.
#[rustc_nounwind]
pub fn simd_ctlz<T>(x: T) -> T;
/// Count the number of ones in each element.
///
/// `T` must be a vector of integers.
#[rustc_nounwind]
pub fn simd_ctpop<T>(x: T) -> T;
/// Count the trailing zeros of each element.
///
/// `T` must be a vector of integers.
#[rustc_nounwind]
pub fn simd_cttz<T>(x: T) -> T;
/// Round up each element to the next highest integer-valued float.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_ceil<T>(x: T) -> T;
/// Round down each element to the next lowest integer-valued float.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_floor<T>(x: T) -> T;
/// Round each element to the closest integer-valued float.
/// Ties are resolved by rounding away from 0.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_round<T>(x: T) -> T;
/// Return the integer part of each element as an integer-valued float.
/// In other words, non-integer values are truncated towards zero.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_trunc<T>(x: T) -> T;
/// Takes the square root of each element.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_fsqrt<T>(x: T) -> T;
/// Computes `(x*y) + z` for each element, but without any intermediate rounding.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_fma<T>(x: T, y: T, z: T) -> T;
// Computes the sine of each element.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_fsin<T>(a: T) -> T;
// Computes the cosine of each element.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_fcos<T>(a: T) -> T;
// Computes the exponential function of each element.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_fexp<T>(a: T) -> T;
// Computes 2 raised to the power of each element.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_fexp2<T>(a: T) -> T;
// Computes the base 10 logarithm of each element.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_flog10<T>(a: T) -> T;
// Computes the base 2 logarithm of each element.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_flog2<T>(a: T) -> T;
// Computes the natural logarithm of each element.
///
/// `T` must be a vector of floats.
#[rustc_nounwind]
pub fn simd_flog<T>(a: T) -> T;
}
```