Enum cranelift_codegen::ir::dfg::ValueDef

pub enum ValueDef {
    Result(Inst, usize),
    Param(Block, usize),
    Union(Value, Value),
}

Where did a value come from?

Variants

Result(Inst, usize)

Value is the n’th result of an instruction.

Param(Block, usize)

Value is the n’th parameter to a block.

Union(Value, Value)

Value is a union of two other values.

Implementations

impl ValueDef

pub fn unwrap_inst(&self) -> Inst

Unwrap the instruction where the value was defined, or panic.

pub fn inst(&self) -> Option<Inst>

Get the instruction where the value was defined, if any.

pub fn unwrap_block(&self) -> Block

Unwrap the block there the parameter is defined, or panic.

pub fn num(self) -> usize

Get the number component of this definition.

When multiple values are defined at the same program point, this indicates the index of this value.

Trait Implementations

impl Clone for ValueDef

fn clone(&self) -> ValueDef

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ValueDef

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

Formats the value using the given formatter.

impl PartialEq for ValueDef

fn eq(&self, other: &ValueDef) -> 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 Copy for ValueDef

impl Eq for ValueDef

impl StructuralPartialEq for ValueDef