Struct cranelift_codegen::isa::registers::RegInfo

pub struct RegInfo {
    pub banks: &'static [RegBank],
    pub classes: &'static [RegClass],
}

Information about the registers in an ISA.

The RegUnit data structure collects all relevant static information about the registers in an ISA.

Fields

banks: &'static [RegBank]

All register banks, ordered by their first_unit. The register banks are disjoint, but there may be holes of unused register unit numbers between banks due to alignment.

classes: &'static [RegClass]

All register classes ordered topologically so a sub-class always follows its parent.

Implementations

impl RegInfo

pub fn bank_containing_regunit(&self, regunit: RegUnit) -> Option<&RegBank>

Get the register bank holding regunit.

pub fn parse_regunit(&self, name: &str) -> Option<RegUnit>

Try to parse a regunit name. The name is not expected to begin with %.

pub fn display_regunit(&self, regunit: RegUnit) -> DisplayRegUnit<'_>

Make a temporary object that can display a register unit.

pub fn rc(&self, idx: RegClassIndex) -> RegClass

Get the register class corresponding to idx.

pub fn toprc(&self, idx: RegClassIndex) -> RegClass

Get the top-level register class containing the idx class.

Trait Implementations

impl Clone for RegInfo

fn clone(&self) -> RegInfo

Returns a copy of the value.

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

Performs copy-assignment from source.