Trait arrow2::types::simd::NativeSimd

source · [−]

pub unsafe trait NativeSimd: Sized + Default + Copy {
    type Native: NativeType;
    type Chunk: BitChunk;
    type Mask: FromMaskChunk<Self::Chunk>;

    const LANES: usize;

    fn select(self, mask: Self::Mask, default: Self) -> Self;
    fn from_chunk(v: &[Self::Native]) -> Self;
    fn from_incomplete_chunk(v: &[Self::Native], remaining: Self::Native) -> Self;
    fn align(
        values: &[Self::Native]
    ) -> (&[Self::Native], &[Self], &[Self::Native]);
}

Expand description

A struct that lends itself well to be compiled leveraging SIMD

Safety

The NativeType and the NativeSimd must have possible a matching alignment. e.g. slicing &[NativeType] by align_of<NativeSimd>() must be properly aligned/safe.

Required Associated Types

source

type Native: NativeType

The NativeType of this struct. E.g. f32 for a NativeSimd = f32x16.

source

type Chunk: BitChunk

The type holding bits for masks.

source

type Mask: FromMaskChunk<Self::Chunk>

Type used for masking.

Required Associated Constants

source

const LANES: usize

Number of lanes

Required Methods

source

fn select(self, mask: Self::Mask, default: Self) -> Self

Sets values to default based on mask.

source

fn from_chunk(v: &[Self::Native]) -> Self

Convert itself from a slice.

Panics

iff v.len() != T::LANES

source

fn from_incomplete_chunk(v: &[Self::Native], remaining: Self::Native) -> Self

creates a new Self from v by populating items from v up to its length. Items from v at positions larger than the number of lanes are ignored; remaining items are populated with remaining.

source