Enum Level 

pub enum Level {
    Baseline = 0,
    V2 = 1,
    V3 = 2,
}

A set of CPU features the hot loops are compiled for.

The names are the x86-64 microarchitecture levels: V2 is SSE4.2 and its neighbours, V3 adds AVX2 and FMA. On aarch64 the ladder has two rungs — Baseline and V3, which stands for NEON. NEON is also in the aarch64 baseline, so those two compile to the same code and exist to keep the dispatch the same shape on both architectures.

There is no V4: AVX-512 has no stable target_feature name on the toolchain libjay is built with, so no clone can ask for it. Adding the rung is a target string and a detection arm once it does.

Variants

Baseline = 0

V2 = 1

V3 = 2

Implementations

impl Level

pub fn name(self) -> &'static str

The name LIBJAY_CPU_LEVEL takes for this level.

Trait Implementations

impl Clone for Level

fn clone(&self) -> Level

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Level

impl Debug for Level

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Level

impl Ord for Level

fn cmp(&self, other: &Level) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Level

fn eq(&self, other: &Level) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for Level

fn partial_cmp(&self, other: &Level) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Level