com.oracle.graal.asm

Class Label

java.lang.Object

com.oracle.graal.asm.Label

public final class Label
extends Object

This class represents a label within assembly code.

Field Summary

Fields

Modifier and Type	Field and Description
private int	blockId
private ArrayList<Integer>	patchPositions References to instructions that jump to this unresolved label.
private int	position

Constructor Summary

Constructors

Constructor and Description
Label()
Label(int id)

Method Summary

Modifier and Type	Method and Description
void	addPatchAt(int branchLocation)
protected void	bind(int pos) Binds the label to the specified position.
int	getBlockId()
boolean	isBound()
protected void	patchInstructions(Assembler masm)
int	position() Returns the position of this label in the code buffer.
void	reset()
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

position

private int position

blockId

private int blockId

patchPositions

private ArrayList<Integer> patchPositions

References to instructions that jump to this unresolved label. These instructions need to be patched when the label is bound using the patchInstructions(Assembler) method.

Constructor Detail

Label

public Label()

Label

public Label(int id)

Method Detail

position

public int position()

Returns the position of this label in the code buffer.

Returns:

the position

getBlockId

public int getBlockId()

bind

protected void bind(int pos)

Binds the label to the specified position.

Parameters:

pos - the position

isBound

public boolean isBound()

addPatchAt

public void addPatchAt(int branchLocation)

patchInstructions

protected void patchInstructions(Assembler masm)

reset

public void reset()

toString

public String toString()

Overrides:

toString in class Object