Struct EmitState

pub struct EmitState { /* private fields */ }

State carried between emissions of a sequence of instructions.

Trait Implementations

impl Clone for EmitState

fn clone(&self) -> EmitState

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for EmitState

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

Formats the value using the given formatter.

impl Default for EmitState

fn default() -> EmitState

Returns the “default value” for a type.

impl MachInstEmitState<MInst> for EmitState

fn new(abi: &Callee<X64ABIMachineSpec>, ctrl_plane: ControlPlane) -> Self

Create a new emission state given the ABI object.

fn pre_safepoint(&mut self, user_stack_map: Option<UserStackMap>)

Update the emission state before emitting an instruction that is a safepoint.

fn ctrl_plane_mut(&mut self) -> &mut ControlPlane

The emission state holds ownership of a control plane, so it doesn’t have to be passed around explicitly too much. ctrl_plane_mut may be used if temporary access to the control plane is needed by some other function that doesn’t have access to the emission state.

fn take_ctrl_plane(self) -> ControlPlane

Used to continue using a control plane after the emission state is not needed anymore.

fn frame_layout(&self) -> &FrameLayout

The [FrameLayout] for the function currently being compiled.

fn on_new_block(&mut self)

A hook that triggers when first emitting a new block. It is guaranteed to be called before any instructions are emitted.