Struct Reg

pub struct Reg(/* private fields */);

A register named in an instruction. This register can be a virtual register, a fixed physical register, or a named spillslot (after regalloc). 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 const fn from_virtual_reg(vreg: VReg) -> Reg

Const constructor: create a new Reg from a regalloc2 VReg.

pub const fn from_real_reg(preg: PReg) -> Reg

Const constructor: create a new Reg from a regalloc2 PReg.

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 to_spillslot(self) -> Option<SpillSlot>

Get the spillslot, 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?

pub fn is_spillslot(self) -> bool

Is this a spillslot?

Trait Implementations

impl AsMut<Reg> for Gpr

Available on crate feature x86 only.

If you know what you’re doing, you can explicitly mutably borrow the underlying Reg. Don’t make it point to the wrong type of register please.

fn as_mut(&mut self) -> &mut Reg

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsMut<Reg> for Reg

fn as_mut(&mut self) -> &mut Reg

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsMut<Reg> for Xmm

Available on crate feature x86 only.

If you know what you’re doing, you can explicitly mutably borrow the underlying Reg. Don’t make it point to the wrong type of register please.

fn as_mut(&mut self) -> &mut Reg

Converts this type into a mutable reference of the (usually inferred) input type.

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<'de> Deserialize<'de> for Reg

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&Reg> for VReg

fn from(reg: &Reg) -> VReg

Converts to this type from the input type.

impl From<Gpr> for Reg

Available on crate feature x86 only.

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<RealReg> for Reg

fn from(reg: RealReg) -> Reg

Converts to this type from the input type.

impl From<Reg> for Imm8Reg

Available on crate feature x86 only.

fn from(reg: Reg) -> Self

Converts to this type from the input type.

impl From<Reg> for RegMem

Available on crate feature x86 only.

fn from(reg: Reg) -> RegMem

Converts to this type from the input type.

impl From<Reg> for RegMemImm

Available on crate feature x86 only.

fn from(reg: Reg) -> Self

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<SpillSlot> for Reg

fn from(spillslot: SpillSlot) -> Reg

Converts to this type from the input type.

impl From<VReg> for Reg

fn from(vreg: VReg) -> Reg

Converts to this type from the input type.

impl From<Xmm> for Reg

Available on crate feature x86 only.

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) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq<Reg> for Gpr

Available on crate feature x86 only.

fn eq(&self, other: &Reg) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq<Reg> for Xmm

Available on crate feature x86 only.

fn eq(&self, other: &Reg) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for Reg

fn eq(&self, other: &Reg) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd 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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Serialize for Reg

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Reg

impl Eq for Reg

impl StructuralPartialEq for Reg