diff options
Diffstat (limited to 'library/portable-simd/crates/core_simd/src/masks.rs')
| -rw-r--r-- | library/portable-simd/crates/core_simd/src/masks.rs | 379 |
1 files changed, 254 insertions, 125 deletions
diff --git a/library/portable-simd/crates/core_simd/src/masks.rs b/library/portable-simd/crates/core_simd/src/masks.rs index fea687bdc..0623d2bf3 100644 --- a/library/portable-simd/crates/core_simd/src/masks.rs +++ b/library/portable-simd/crates/core_simd/src/masks.rs @@ -1,4 +1,4 @@ -//! Types and traits associated with masking lanes of vectors. +//! Types and traits associated with masking elements of vectors. //! Types representing #![allow(non_camel_case_types)] @@ -12,13 +12,9 @@ )] mod mask_impl; -mod to_bitmask; -pub use to_bitmask::ToBitMask; - -#[cfg(feature = "generic_const_exprs")] -pub use to_bitmask::{bitmask_len, ToBitMaskArray}; - -use crate::simd::{intrinsics, LaneCount, Simd, SimdElement, SimdPartialEq, SupportedLaneCount}; +use crate::simd::{ + cmp::SimdPartialEq, intrinsics, LaneCount, Simd, SimdCast, SimdElement, SupportedLaneCount, +}; use core::cmp::Ordering; use core::{fmt, mem}; @@ -32,13 +28,17 @@ mod sealed { /// prevent us from ever removing that bound, or from implementing `MaskElement` on /// non-`PartialEq` types in the future. pub trait Sealed { - fn valid<const LANES: usize>(values: Simd<Self, LANES>) -> bool + fn valid<const N: usize>(values: Simd<Self, N>) -> bool where - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, Self: SimdElement; fn eq(self, other: Self) -> bool; + fn as_usize(self) -> usize; + + type Unsigned: SimdElement; + const TRUE: Self; const FALSE: Self; @@ -50,15 +50,15 @@ use sealed::Sealed; /// /// # Safety /// Type must be a signed integer. -pub unsafe trait MaskElement: SimdElement + Sealed {} +pub unsafe trait MaskElement: SimdElement<Mask = Self> + SimdCast + Sealed {} macro_rules! impl_element { - { $ty:ty } => { + { $ty:ty, $unsigned:ty } => { impl Sealed for $ty { #[inline] - fn valid<const LANES: usize>(value: Simd<Self, LANES>) -> bool + fn valid<const N: usize>(value: Simd<Self, N>) -> bool where - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { (value.simd_eq(Simd::splat(0 as _)) | value.simd_eq(Simd::splat(-1 as _))).all() } @@ -66,6 +66,13 @@ macro_rules! impl_element { #[inline] fn eq(self, other: Self) -> bool { self == other } + #[inline] + fn as_usize(self) -> usize { + self as usize + } + + type Unsigned = $unsigned; + const TRUE: Self = -1; const FALSE: Self = 0; } @@ -75,36 +82,36 @@ macro_rules! impl_element { } } -impl_element! { i8 } -impl_element! { i16 } -impl_element! { i32 } -impl_element! { i64 } -impl_element! { isize } +impl_element! { i8, u8 } +impl_element! { i16, u16 } +impl_element! { i32, u32 } +impl_element! { i64, u64 } +impl_element! { isize, usize } -/// A SIMD vector mask for `LANES` elements of width specified by `Element`. +/// A SIMD vector mask for `N` elements of width specified by `Element`. /// -/// Masks represent boolean inclusion/exclusion on a per-lane basis. +/// Masks represent boolean inclusion/exclusion on a per-element basis. /// /// The layout of this type is unspecified, and may change between platforms /// and/or Rust versions, and code should not assume that it is equivalent to -/// `[T; LANES]`. -#[cfg_attr(not(doc), repr(transparent))] // work around https://github.com/rust-lang/rust/issues/90435 -pub struct Mask<T, const LANES: usize>(mask_impl::Mask<T, LANES>) +/// `[T; N]`. +#[repr(transparent)] +pub struct Mask<T, const N: usize>(mask_impl::Mask<T, N>) where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount; + LaneCount<N>: SupportedLaneCount; -impl<T, const LANES: usize> Copy for Mask<T, LANES> +impl<T, const N: usize> Copy for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { } -impl<T, const LANES: usize> Clone for Mask<T, LANES> +impl<T, const N: usize> Clone for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] fn clone(&self) -> Self { @@ -112,12 +119,12 @@ where } } -impl<T, const LANES: usize> Mask<T, LANES> +impl<T, const N: usize> Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { - /// Construct a mask by setting all lanes to the given value. + /// Construct a mask by setting all elements to the given value. #[inline] pub fn splat(value: bool) -> Self { Self(mask_impl::Mask::splat(value)) @@ -125,7 +132,7 @@ where /// Converts an array of bools to a SIMD mask. #[inline] - pub fn from_array(array: [bool; LANES]) -> Self { + pub fn from_array(array: [bool; N]) -> Self { // SAFETY: Rust's bool has a layout of 1 byte (u8) with a value of // true: 0b_0000_0001 // false: 0b_0000_0000 @@ -133,16 +140,15 @@ where // This would be hypothetically valid as an "in-place" transmute, // but these are "dependently-sized" types, so copy elision it is! unsafe { - let bytes: [u8; LANES] = mem::transmute_copy(&array); - let bools: Simd<i8, LANES> = - intrinsics::simd_ne(Simd::from_array(bytes), Simd::splat(0u8)); + let bytes: [u8; N] = mem::transmute_copy(&array); + let bools: Simd<i8, N> = intrinsics::simd_ne(Simd::from_array(bytes), Simd::splat(0u8)); Mask::from_int_unchecked(intrinsics::simd_cast(bools)) } } /// Converts a SIMD mask to an array of bools. #[inline] - pub fn to_array(self) -> [bool; LANES] { + pub fn to_array(self) -> [bool; N] { // This follows mostly the same logic as from_array. // SAFETY: Rust's bool has a layout of 1 byte (u8) with a value of // true: 0b_0000_0001 @@ -154,7 +160,7 @@ where // This would be hypothetically valid as an "in-place" transmute, // but these are "dependently-sized" types, so copy elision it is! unsafe { - let mut bytes: Simd<i8, LANES> = intrinsics::simd_cast(self.to_int()); + let mut bytes: Simd<i8, N> = intrinsics::simd_cast(self.to_int()); bytes &= Simd::splat(1i8); mem::transmute_copy(&bytes) } @@ -164,10 +170,10 @@ where /// represents `true`. /// /// # Safety - /// All lanes must be either 0 or -1. + /// All elements must be either 0 or -1. #[inline] #[must_use = "method returns a new mask and does not mutate the original value"] - pub unsafe fn from_int_unchecked(value: Simd<T, LANES>) -> Self { + pub unsafe fn from_int_unchecked(value: Simd<T, N>) -> Self { // Safety: the caller must confirm this invariant unsafe { Self(mask_impl::Mask::from_int_unchecked(value)) } } @@ -176,11 +182,11 @@ where /// represents `true`. /// /// # Panics - /// Panics if any lane is not 0 or -1. + /// Panics if any element is not 0 or -1. #[inline] #[must_use = "method returns a new mask and does not mutate the original value"] #[track_caller] - pub fn from_int(value: Simd<T, LANES>) -> Self { + pub fn from_int(value: Simd<T, N>) -> Self { assert!(T::valid(value), "all values must be either 0 or -1",); // Safety: the validity has been checked unsafe { Self::from_int_unchecked(value) } @@ -190,121 +196,244 @@ where /// represents `true`. #[inline] #[must_use = "method returns a new vector and does not mutate the original value"] - pub fn to_int(self) -> Simd<T, LANES> { + pub fn to_int(self) -> Simd<T, N> { self.0.to_int() } - /// Converts the mask to a mask of any other lane size. + /// Converts the mask to a mask of any other element size. #[inline] #[must_use = "method returns a new mask and does not mutate the original value"] - pub fn cast<U: MaskElement>(self) -> Mask<U, LANES> { + pub fn cast<U: MaskElement>(self) -> Mask<U, N> { Mask(self.0.convert()) } - /// Tests the value of the specified lane. + /// Tests the value of the specified element. /// /// # Safety - /// `lane` must be less than `LANES`. + /// `index` must be less than `self.len()`. #[inline] #[must_use = "method returns a new bool and does not mutate the original value"] - pub unsafe fn test_unchecked(&self, lane: usize) -> bool { + pub unsafe fn test_unchecked(&self, index: usize) -> bool { // Safety: the caller must confirm this invariant - unsafe { self.0.test_unchecked(lane) } + unsafe { self.0.test_unchecked(index) } } - /// Tests the value of the specified lane. + /// Tests the value of the specified element. /// /// # Panics - /// Panics if `lane` is greater than or equal to the number of lanes in the vector. + /// Panics if `index` is greater than or equal to the number of elements in the vector. #[inline] #[must_use = "method returns a new bool and does not mutate the original value"] #[track_caller] - pub fn test(&self, lane: usize) -> bool { - assert!(lane < LANES, "lane index out of range"); - // Safety: the lane index has been checked - unsafe { self.test_unchecked(lane) } + pub fn test(&self, index: usize) -> bool { + assert!(index < N, "element index out of range"); + // Safety: the element index has been checked + unsafe { self.test_unchecked(index) } } - /// Sets the value of the specified lane. + /// Sets the value of the specified element. /// /// # Safety - /// `lane` must be less than `LANES`. + /// `index` must be less than `self.len()`. #[inline] - pub unsafe fn set_unchecked(&mut self, lane: usize, value: bool) { + pub unsafe fn set_unchecked(&mut self, index: usize, value: bool) { // Safety: the caller must confirm this invariant unsafe { - self.0.set_unchecked(lane, value); + self.0.set_unchecked(index, value); } } - /// Sets the value of the specified lane. + /// Sets the value of the specified element. /// /// # Panics - /// Panics if `lane` is greater than or equal to the number of lanes in the vector. + /// Panics if `index` is greater than or equal to the number of elements in the vector. #[inline] #[track_caller] - pub fn set(&mut self, lane: usize, value: bool) { - assert!(lane < LANES, "lane index out of range"); - // Safety: the lane index has been checked + pub fn set(&mut self, index: usize, value: bool) { + assert!(index < N, "element index out of range"); + // Safety: the element index has been checked unsafe { - self.set_unchecked(lane, value); + self.set_unchecked(index, value); } } - /// Returns true if any lane is set, or false otherwise. + /// Returns true if any element is set, or false otherwise. #[inline] #[must_use = "method returns a new bool and does not mutate the original value"] pub fn any(self) -> bool { self.0.any() } - /// Returns true if all lanes are set, or false otherwise. + /// Returns true if all elements are set, or false otherwise. #[inline] #[must_use = "method returns a new bool and does not mutate the original value"] pub fn all(self) -> bool { self.0.all() } + + /// Create a bitmask from a mask. + /// + /// Each bit is set if the corresponding element in the mask is `true`. + /// If the mask contains more than 64 elements, the bitmask is truncated to the first 64. + #[inline] + #[must_use = "method returns a new integer and does not mutate the original value"] + pub fn to_bitmask(self) -> u64 { + self.0.to_bitmask_integer() + } + + /// Create a mask from a bitmask. + /// + /// For each bit, if it is set, the corresponding element in the mask is set to `true`. + /// If the mask contains more than 64 elements, the remainder are set to `false`. + #[inline] + #[must_use = "method returns a new mask and does not mutate the original value"] + pub fn from_bitmask(bitmask: u64) -> Self { + Self(mask_impl::Mask::from_bitmask_integer(bitmask)) + } + + /// Create a bitmask vector from a mask. + /// + /// Each bit is set if the corresponding element in the mask is `true`. + /// The remaining bits are unset. + /// + /// The bits are packed into the first N bits of the vector: + /// ``` + /// # #![feature(portable_simd)] + /// # #[cfg(feature = "as_crate")] use core_simd::simd; + /// # #[cfg(not(feature = "as_crate"))] use core::simd; + /// # use simd::mask32x8; + /// let mask = mask32x8::from_array([true, false, true, false, false, false, true, false]); + /// assert_eq!(mask.to_bitmask_vector()[0], 0b01000101); + /// ``` + #[inline] + #[must_use = "method returns a new integer and does not mutate the original value"] + pub fn to_bitmask_vector(self) -> Simd<u8, N> { + self.0.to_bitmask_vector() + } + + /// Create a mask from a bitmask vector. + /// + /// For each bit, if it is set, the corresponding element in the mask is set to `true`. + /// + /// The bits are packed into the first N bits of the vector: + /// ``` + /// # #![feature(portable_simd)] + /// # #[cfg(feature = "as_crate")] use core_simd::simd; + /// # #[cfg(not(feature = "as_crate"))] use core::simd; + /// # use simd::{mask32x8, u8x8}; + /// let bitmask = u8x8::from_array([0b01000101, 0, 0, 0, 0, 0, 0, 0]); + /// assert_eq!( + /// mask32x8::from_bitmask_vector(bitmask), + /// mask32x8::from_array([true, false, true, false, false, false, true, false]), + /// ); + /// ``` + #[inline] + #[must_use = "method returns a new mask and does not mutate the original value"] + pub fn from_bitmask_vector(bitmask: Simd<u8, N>) -> Self { + Self(mask_impl::Mask::from_bitmask_vector(bitmask)) + } + + /// Find the index of the first set element. + /// + /// ``` + /// # #![feature(portable_simd)] + /// # #[cfg(feature = "as_crate")] use core_simd::simd; + /// # #[cfg(not(feature = "as_crate"))] use core::simd; + /// # use simd::mask32x8; + /// assert_eq!(mask32x8::splat(false).first_set(), None); + /// assert_eq!(mask32x8::splat(true).first_set(), Some(0)); + /// + /// let mask = mask32x8::from_array([false, true, false, false, true, false, false, true]); + /// assert_eq!(mask.first_set(), Some(1)); + /// ``` + #[inline] + #[must_use = "method returns the index and does not mutate the original value"] + pub fn first_set(self) -> Option<usize> { + // If bitmasks are efficient, using them is better + if cfg!(target_feature = "sse") && N <= 64 { + let tz = self.to_bitmask().trailing_zeros(); + return if tz == 64 { None } else { Some(tz as usize) }; + } + + // To find the first set index: + // * create a vector 0..N + // * replace unset mask elements in that vector with -1 + // * perform _unsigned_ reduce-min + // * check if the result is -1 or an index + + let index = Simd::from_array( + const { + let mut index = [0; N]; + let mut i = 0; + while i < N { + index[i] = i; + i += 1; + } + index + }, + ); + + // Safety: the input and output are integer vectors + let index: Simd<T, N> = unsafe { intrinsics::simd_cast(index) }; + + let masked_index = self.select(index, Self::splat(true).to_int()); + + // Safety: the input and output are integer vectors + let masked_index: Simd<T::Unsigned, N> = unsafe { intrinsics::simd_cast(masked_index) }; + + // Safety: the input is an integer vector + let min_index: T::Unsigned = unsafe { intrinsics::simd_reduce_min(masked_index) }; + + // Safety: the return value is the unsigned version of T + let min_index: T = unsafe { core::mem::transmute_copy(&min_index) }; + + if min_index.eq(T::TRUE) { + None + } else { + Some(min_index.as_usize()) + } + } } // vector/array conversion -impl<T, const LANES: usize> From<[bool; LANES]> for Mask<T, LANES> +impl<T, const N: usize> From<[bool; N]> for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] - fn from(array: [bool; LANES]) -> Self { + fn from(array: [bool; N]) -> Self { Self::from_array(array) } } -impl<T, const LANES: usize> From<Mask<T, LANES>> for [bool; LANES] +impl<T, const N: usize> From<Mask<T, N>> for [bool; N] where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] - fn from(vector: Mask<T, LANES>) -> Self { + fn from(vector: Mask<T, N>) -> Self { vector.to_array() } } -impl<T, const LANES: usize> Default for Mask<T, LANES> +impl<T, const N: usize> Default for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] - #[must_use = "method returns a defaulted mask with all lanes set to false (0)"] + #[must_use = "method returns a defaulted mask with all elements set to false (0)"] fn default() -> Self { Self::splat(false) } } -impl<T, const LANES: usize> PartialEq for Mask<T, LANES> +impl<T, const N: usize> PartialEq for Mask<T, N> where T: MaskElement + PartialEq, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] #[must_use = "method returns a new bool and does not mutate the original value"] @@ -313,10 +442,10 @@ where } } -impl<T, const LANES: usize> PartialOrd for Mask<T, LANES> +impl<T, const N: usize> PartialOrd for Mask<T, N> where T: MaskElement + PartialOrd, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] #[must_use = "method returns a new Ordering and does not mutate the original value"] @@ -325,23 +454,23 @@ where } } -impl<T, const LANES: usize> fmt::Debug for Mask<T, LANES> +impl<T, const N: usize> fmt::Debug for Mask<T, N> where T: MaskElement + fmt::Debug, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { f.debug_list() - .entries((0..LANES).map(|lane| self.test(lane))) + .entries((0..N).map(|i| self.test(i))) .finish() } } -impl<T, const LANES: usize> core::ops::BitAnd for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitAnd for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { type Output = Self; #[inline] @@ -351,10 +480,10 @@ where } } -impl<T, const LANES: usize> core::ops::BitAnd<bool> for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitAnd<bool> for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { type Output = Self; #[inline] @@ -364,23 +493,23 @@ where } } -impl<T, const LANES: usize> core::ops::BitAnd<Mask<T, LANES>> for bool +impl<T, const N: usize> core::ops::BitAnd<Mask<T, N>> for bool where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { - type Output = Mask<T, LANES>; + type Output = Mask<T, N>; #[inline] #[must_use = "method returns a new mask and does not mutate the original value"] - fn bitand(self, rhs: Mask<T, LANES>) -> Mask<T, LANES> { + fn bitand(self, rhs: Mask<T, N>) -> Mask<T, N> { Mask::splat(self) & rhs } } -impl<T, const LANES: usize> core::ops::BitOr for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitOr for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { type Output = Self; #[inline] @@ -390,10 +519,10 @@ where } } -impl<T, const LANES: usize> core::ops::BitOr<bool> for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitOr<bool> for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { type Output = Self; #[inline] @@ -403,23 +532,23 @@ where } } -impl<T, const LANES: usize> core::ops::BitOr<Mask<T, LANES>> for bool +impl<T, const N: usize> core::ops::BitOr<Mask<T, N>> for bool where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { - type Output = Mask<T, LANES>; + type Output = Mask<T, N>; #[inline] #[must_use = "method returns a new mask and does not mutate the original value"] - fn bitor(self, rhs: Mask<T, LANES>) -> Mask<T, LANES> { + fn bitor(self, rhs: Mask<T, N>) -> Mask<T, N> { Mask::splat(self) | rhs } } -impl<T, const LANES: usize> core::ops::BitXor for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitXor for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { type Output = Self; #[inline] @@ -429,10 +558,10 @@ where } } -impl<T, const LANES: usize> core::ops::BitXor<bool> for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitXor<bool> for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { type Output = Self; #[inline] @@ -442,25 +571,25 @@ where } } -impl<T, const LANES: usize> core::ops::BitXor<Mask<T, LANES>> for bool +impl<T, const N: usize> core::ops::BitXor<Mask<T, N>> for bool where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { - type Output = Mask<T, LANES>; + type Output = Mask<T, N>; #[inline] #[must_use = "method returns a new mask and does not mutate the original value"] - fn bitxor(self, rhs: Mask<T, LANES>) -> Self::Output { + fn bitxor(self, rhs: Mask<T, N>) -> Self::Output { Mask::splat(self) ^ rhs } } -impl<T, const LANES: usize> core::ops::Not for Mask<T, LANES> +impl<T, const N: usize> core::ops::Not for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { - type Output = Mask<T, LANES>; + type Output = Mask<T, N>; #[inline] #[must_use = "method returns a new mask and does not mutate the original value"] fn not(self) -> Self::Output { @@ -468,10 +597,10 @@ where } } -impl<T, const LANES: usize> core::ops::BitAndAssign for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitAndAssign for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] fn bitand_assign(&mut self, rhs: Self) { @@ -479,10 +608,10 @@ where } } -impl<T, const LANES: usize> core::ops::BitAndAssign<bool> for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitAndAssign<bool> for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] fn bitand_assign(&mut self, rhs: bool) { @@ -490,10 +619,10 @@ where } } -impl<T, const LANES: usize> core::ops::BitOrAssign for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitOrAssign for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] fn bitor_assign(&mut self, rhs: Self) { @@ -501,10 +630,10 @@ where } } -impl<T, const LANES: usize> core::ops::BitOrAssign<bool> for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitOrAssign<bool> for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] fn bitor_assign(&mut self, rhs: bool) { @@ -512,10 +641,10 @@ where } } -impl<T, const LANES: usize> core::ops::BitXorAssign for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitXorAssign for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] fn bitxor_assign(&mut self, rhs: Self) { @@ -523,10 +652,10 @@ where } } -impl<T, const LANES: usize> core::ops::BitXorAssign<bool> for Mask<T, LANES> +impl<T, const N: usize> core::ops::BitXorAssign<bool> for Mask<T, N> where T: MaskElement, - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] fn bitxor_assign(&mut self, rhs: bool) { @@ -537,12 +666,12 @@ where macro_rules! impl_from { { $from:ty => $($to:ty),* } => { $( - impl<const LANES: usize> From<Mask<$from, LANES>> for Mask<$to, LANES> + impl<const N: usize> From<Mask<$from, N>> for Mask<$to, N> where - LaneCount<LANES>: SupportedLaneCount, + LaneCount<N>: SupportedLaneCount, { #[inline] - fn from(value: Mask<$from, LANES>) -> Self { + fn from(value: Mask<$from, N>) -> Self { value.cast() } } |