Struct SpillManager 

pub struct SpillManager { /* private fields */ }

Manages spill slots for values that cannot fit on the stack.

Implementations

impl SpillManager

pub fn new() -> Self

Creates a new spill manager.

pub fn allocate(&mut self, value: ValueId) -> SpillSlot

Allocates a spill slot for a value. If the value already has a slot, returns the existing one.

pub fn get(&self, value: ValueId) -> Option<SpillSlot>

Returns the spill slot for a value, if one exists.

pub fn is_spilled(&self, value: ValueId) -> bool

Returns true if the value is currently spilled.

pub fn mark_reloadable(&mut self, value: ValueId)

Marks a value’s spill slot as reloadable at the current program point.

pub fn mark_stored(&mut self, value: ValueId)

Marks a value’s spill slot as written by emitted code.

pub fn is_reloadable(&self, value: ValueId) -> bool

Returns true if the value has a spill slot that can be loaded.

pub fn is_stored(&self, value: ValueId) -> bool

Returns true if already-emitted code has stored this value.

pub fn free(&mut self, value: ValueId)

Frees a spill slot (when the value is reloaded and no longer needed in memory). Note: Simple implementation doesn’t reuse slots.

pub fn spill_area_size(&self) -> u32

Returns the total size of the spill area in bytes.

pub fn clear(&mut self)

Clears all spill slots (used at function boundaries).

pub fn count(&self) -> usize

Returns the number of currently spilled values.

Trait Implementations

impl Clone for SpillManager

fn clone(&self) -> SpillManager

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpillManager

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

Formats the value using the given formatter.

impl Default for SpillManager

fn default() -> Self

Returns the “default value” for a type.