Enum regalloc2::RegClass

pub enum RegClass {
    Int = 0,
    Float = 1,
}

Register classes.

Every value has a “register class”, which is like a type at the register-allocator level. Every register must belong to only one class; i.e., they are disjoint.

For tight bit-packing throughout our data structures, we support only two classes, “int” and “float”. This will usually be enough on modern machines, as they have one class of general-purpose integer registers of machine width (e.g. 64 bits), and another class of float/vector registers used both for FP and for vector operations. If needed, we could adjust bitpacking to allow for more classes in the future.

Variants

Int = 0

Float = 1

Trait Implementations

impl Clone for RegClass

fn clone(&self) -> RegClass

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RegClass

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

Formats the value using the given formatter.

impl Hash for RegClass

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for RegClass

fn cmp(&self, other: &RegClass) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for RegClass

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for RegClass

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Copy for RegClass

impl Eq for RegClass

impl StructuralPartialEq for RegClass