Struct cranelift_codegen::machinst::lower::NonRegInput

pub struct NonRegInput {
    pub inst: Option<(Inst, usize)>,
    pub constant: Option<u64>,
}

A representation of all of the ways in which a value is available, aside from as a direct register.

• An instruction, if it would be allowed to occur at the current location instead (see LowerCtx::get_input_as_source_or_const() for more details).

• A constant, if the value is known to be a constant.

Fields

inst: Option<(Inst, usize)>

An instruction produces this value (as the given output), and its computation (and side-effect if applicable) could occur at the current instruction’s location instead.

If this instruction’s operation is merged into the current instruction, the backend must call LowerCtx::sink_inst().

constant: Option<u64>

The value is a known constant.

Trait Implementations

impl Clone for NonRegInput

fn clone(&self) -> NonRegInput

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for NonRegInput

impl Debug for NonRegInput

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

Formats the value using the given formatter.