Struct cranelift_codegen::Reg

pub struct Reg(_);

A register named in an instruction. This register can be either a virtual register or a fixed physical register. It does not have any constraints applied to it: those can be added later in MachInst::get_operands() when the Regs are converted to Operands.

Implementations

impl Reg

pub fn to_real_reg(self) -> Option<RealReg>

Get the physical register (RealReg), if this register is one.

pub fn to_virtual_reg(self) -> Option<VirtualReg>

Get the virtual (non-physical) register, if this register is one.

pub fn class(self) -> RegClass

Get the class of this register.

pub fn is_real(self) -> bool

Is this a real (physical) reg?

pub fn is_virtual(self) -> bool

Is this a virtual reg?

Trait Implementations

impl Clone for Reg

fn clone(&self) -> Reg

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Reg

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

Formats the value using the given formatter.

impl From<Gpr> for Reg

fn from(r: Gpr) -> Self

Converts to this type from the input type.

impl From<PReg> for Reg

fn from(preg: PReg) -> Reg

Converts to this type from the input type.

impl From<Reg> for Imm8Reg

fn from(reg: Reg) -> Self

Converts to this type from the input type.

impl From<Reg> for RegMem

fn from(reg: Reg) -> RegMem

Converts to this type from the input type.

impl From<Reg> for VReg

fn from(reg: Reg) -> VReg

Extract the underlying regalloc2::VReg. Note that physical registers also map to particular (special) VRegs, so this method can be used either on virtual or physical Regs.

impl From<VReg> for Reg

fn from(vreg: VReg) -> Reg

Converts to this type from the input type.

impl From<Xmm> for Reg

fn from(r: Xmm) -> Self

Converts to this type from the input type.

impl Hash for Reg

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Reg

fn cmp(&self, other: &Reg) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<Reg> for Gpr

fn eq(&self, other: &Reg) -> 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 PartialEq<Reg> for Reg

fn eq(&self, other: &Reg) -> 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 PartialEq<Reg> for Xmm

fn eq(&self, other: &Reg) -> 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 PartialOrd<Reg> for Reg

fn partial_cmp(&self, other: &Reg) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Reg

impl Eq for Reg

impl StructuralEq for Reg

impl StructuralPartialEq for Reg