Struct Allocation

pub struct Allocation { /* private fields */ }

An Allocation represents the end result of regalloc for an Operand.

Implementations

impl Allocation

pub fn none() -> Allocation

Get the “none” allocation, which is distinct from the other possibilities and is used to initialize data structures.

pub fn reg(preg: PReg) -> Allocation

Create an allocation into a register.

pub fn stack(slot: SpillSlot) -> Allocation

Create an allocation into a spillslot.

pub fn kind(self) -> AllocationKind

Get the allocation’s “kind”: none, register, or stack (spillslot).

pub fn is_none(self) -> bool

Is the allocation “none”?

pub fn is_some(self) -> bool

Is the allocation not “none”?

pub fn is_reg(self) -> bool

Is the allocation a register?

pub fn is_stack(self) -> bool

Is the allocation on the stack (a spillslot)?

pub fn index(self) -> usize

Get the index of the spillslot or register. If register, this is an index that can be used by PReg::from_index().

pub fn as_reg(self) -> Option<PReg>

Get the allocation as a physical register, if any.

pub fn as_stack(self) -> Option<SpillSlot>

Get the allocation as a spillslot, if any.

pub fn bits(self) -> u32

Get the raw bits for the packed encoding of this allocation.

pub fn from_bits(bits: u32) -> Self

Construct an allocation from its packed encoding.

Trait Implementations

impl Clone for Allocation

fn clone(&self) -> Allocation

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Allocation

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

Formats the value using the given formatter.

impl Display for Allocation

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

Formats the value using the given formatter.

impl Hash for Allocation

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 Allocation

fn cmp(&self, other: &Allocation) -> 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 Allocation

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for Allocation

fn partial_cmp(&self, other: &Allocation) -> 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 Copy for Allocation

impl Eq for Allocation

impl StructuralPartialEq for Allocation