org.jikesrvm.compilers.opt.liveness

Class LiveSetElement

java.lang.Object

org.jikesrvm.compilers.opt.liveness.LiveSetElement

final class LiveSetElement
extends Object

A simple class that holds an element in a LiveSet.

Field Summary

Fields

Modifier and Type	Field and Description
private LiveSetElement	next The next field
private RegisterOperand	regOp The register operand, i.e., the data

Constructor Summary

Constructors

Constructor and Description
LiveSetElement(RegisterOperand register) Construct an LiveSetElement.

Method Summary

Modifier and Type	Method and Description
LiveSetElement	getNext() Returns the next element on this list
Register	getRegister() Returns the register associated with this element
RegisterOperand	getRegisterOperand() Returns the register operand associated with this element
TypeReference	getRegisterType() Returns the register type associated with this element
void	setNext(LiveSetElement newNext) Sets the next element field
void	setRegisterOperand(RegisterOperand newRegOp) Changes the register operand.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

regOp

private RegisterOperand regOp

The register operand, i.e., the data

next

private LiveSetElement next

The next field

Constructor Detail

LiveSetElement

LiveSetElement(RegisterOperand register)

Construct an LiveSetElement.

Parameters:

register - An RegisterOperand

Method Detail

getRegisterOperand

public RegisterOperand getRegisterOperand()

Returns the register operand associated with this element

Returns:

the register operand associated with this element

setRegisterOperand

public void setRegisterOperand(RegisterOperand newRegOp)

Changes the register operand. New operand must represent the same register This is done to promote something of WordType to ReferenceType for the purposes of GC mapping.

Parameters:

newRegOp - the register operand that replaces the old one

getRegister

public Register getRegister()

Returns the register associated with this element

Returns:

the register associated with this element

getRegisterType

public TypeReference getRegisterType()

Returns the register type associated with this element

Returns:

the register type associated with this element

getNext

public LiveSetElement getNext()

Returns the next element on this list

Returns:

the next element on this list

setNext

public void setNext(LiveSetElement newNext)

Sets the next element field

Parameters:

newNext - the next element field

toString

public String toString()

Overrides:

toString in class Object

Returns:

a string version of this element