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use crate::simd::{intrinsics, LaneCount, Mask, Simd, SimdElement, SupportedLaneCount};
/// Parallel `PartialEq`.
pub trait SimdPartialEq {
/// The mask type returned by each comparison.
type Mask;
/// Test if each lane is equal to the corresponding lane in `other`.
#[must_use = "method returns a new mask and does not mutate the original value"]
fn simd_eq(self, other: Self) -> Self::Mask;
/// Test if each lane is equal to the corresponding lane in `other`.
#[must_use = "method returns a new mask and does not mutate the original value"]
fn simd_ne(self, other: Self) -> Self::Mask;
}
macro_rules! impl_number {
{ $($number:ty),* } => {
$(
impl<const LANES: usize> SimdPartialEq for Simd<$number, LANES>
where
LaneCount<LANES>: SupportedLaneCount,
{
type Mask = Mask<<$number as SimdElement>::Mask, LANES>;
#[inline]
fn simd_eq(self, other: Self) -> Self::Mask {
// Safety: `self` is a vector, and the result of the comparison
// is always a valid mask.
unsafe { Mask::from_int_unchecked(intrinsics::simd_eq(self, other)) }
}
#[inline]
fn simd_ne(self, other: Self) -> Self::Mask {
// Safety: `self` is a vector, and the result of the comparison
// is always a valid mask.
unsafe { Mask::from_int_unchecked(intrinsics::simd_ne(self, other)) }
}
}
)*
}
}
impl_number! { f32, f64, u8, u16, u32, u64, usize, i8, i16, i32, i64, isize }
macro_rules! impl_mask {
{ $($integer:ty),* } => {
$(
impl<const LANES: usize> SimdPartialEq for Mask<$integer, LANES>
where
LaneCount<LANES>: SupportedLaneCount,
{
type Mask = Self;
#[inline]
fn simd_eq(self, other: Self) -> Self::Mask {
// Safety: `self` is a vector, and the result of the comparison
// is always a valid mask.
unsafe { Self::from_int_unchecked(intrinsics::simd_eq(self.to_int(), other.to_int())) }
}
#[inline]
fn simd_ne(self, other: Self) -> Self::Mask {
// Safety: `self` is a vector, and the result of the comparison
// is always a valid mask.
unsafe { Self::from_int_unchecked(intrinsics::simd_ne(self.to_int(), other.to_int())) }
}
}
)*
}
}
impl_mask! { i8, i16, i32, i64, isize }
|
