Struct NeonBits

pub struct NeonBits(/* private fields */);

Use u64 representation the bitmask of Neon vector. (low) Vector: 00-ff-ff-ff-ff-00-00-00 Mask : 0000-1111-1111-1111-1111-0000-0000-0000

first_offset() = 1 clear_high_bits(4) = Mask(0000-1111-1111-1111-[0000]-0000-0000-0000)

reference: https://community.arm.com/arm-community-blogs/b/infrastructure-solutions-blog/posts/porting-x86-vector-bitmask-optimizations-to-arm-neon

Implementations

impl NeonBits

pub fn new(u: u64) -> Self

Trait Implementations

impl BitMask for NeonBits

const LEN: usize = 16usize

Total bits in the bitmask.

fn first_offset(&self) -> usize

get the offset of the first 1 bit.

fn before(&self, rhs: &Self) -> bool

check if this bitmask is before the other bitmask.

fn as_little_endian(&self) -> Self

convert bitmask as little endian

fn all_zero(&self) -> bool

whether all bits are zero.

fn clear_high_bits(&self, n: usize) -> Self

clear high n bits.