Enum regalloc2::RegClass

pub enum RegClass {
    Int,
    Float,
}

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

Float

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,

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl PartialEq<RegClass> 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<RegClass> 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 StructuralEq for RegClass

impl StructuralPartialEq for RegClass