org.jikesrvm.compilers.baseline

Class PendingRETInfo

java.lang.Object

org.jikesrvm.compilers.baseline.PendingRETInfo

final class PendingRETInfo
extends Object

This class is used during the processing of reference maps for a method.

When a JSR has been processed the processing of a RET is pending. Need to track which JSR was processed, and where the "return address" value is being held (i.e. is it on the operand stack, or in a local variable). The value starts on the top of the stack, but is usually quickly moved to a local variable.

Field Summary

Fields

Modifier and Type	Field and Description
int	JSRBBNum
short	JSRNextBBNum Block number of block after JSR
int	JSRSubStartByteIndex
int	returnAddressLocation index into map - represents either a local variable or a stack position
private boolean	updatedOnce Sanity check the return address location is only updated once

Constructor Summary

Constructors

Constructor and Description
PendingRETInfo(int JSRSubStartByteIndex, int JSRBBNum, int returnAddressLocation, short JSRNextBBNum)
PendingRETInfo(PendingRETInfo copyfrom)

Method Summary

Modifier and Type	Method and Description
void	updateReturnAddressLocation(int newLocation)

Methods inherited from class java.lang.Object

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

Field Detail

JSRSubStartByteIndex

public final int JSRSubStartByteIndex

JSRBBNum

public final int JSRBBNum

returnAddressLocation

public int returnAddressLocation

index into map - represents either a local variable or a stack position

updatedOnce

private boolean updatedOnce

Sanity check the return address location is only updated once

JSRNextBBNum

public final short JSRNextBBNum

Block number of block after JSR

Constructor Detail

PendingRETInfo

PendingRETInfo(int JSRSubStartByteIndex,
               int JSRBBNum,
               int returnAddressLocation,
               short JSRNextBBNum)

PendingRETInfo

PendingRETInfo(PendingRETInfo copyfrom)

Method Detail

updateReturnAddressLocation

public void updateReturnAddressLocation(int newLocation)