Struct PairedGpr

pub struct PairedGpr {
    pub read: Gpr,
    pub write: Writable<Gpr>,
}

A pair of registers, one for reading and one for writing.

Due to how Cranelift’s SSA form, we must track the read and write registers separately prior to register allocation. Once register allocation is complete, we expect the hardware encoding for both read and write to be the same.

Fields

read: Gpr

write: Writable<Gpr>

Trait Implementations

impl AsReg for PairedGpr

fn enc(&self) -> u8

Return the register’s hardware encoding; e.g., 0 for %rax.

fn to_string(&self, size: Option<Size>) -> String

Return the register name.

fn new(_: u8) -> PairedGpr

Create a register from its hardware encoding.

impl Clone for PairedGpr

fn clone(&self) -> PairedGpr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PairedGpr

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

Formats the value using the given formatter.

impl From<Writable<Gpr>> for PairedGpr

fn from(wgpr: Writable<Gpr>) -> PairedGpr

Converts to this type from the input type.

impl Copy for PairedGpr