/* Copyright (c) 2002-2011 by XMLVM.org
*
* Project Info: http://www.xmlvm.org
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
package org.xmlvm.refcount;
import org.jdom.Element;
/**
* Helper class for the code path. Every time any execution path hits an
* instruction it stores away the object registers and non object registers that
* are available to the instruction. In this way we can later decide whether
* there is potential conflict if we decided to free a register
*/
public class OnePathInstructionRegisterContents
{
public OnePathInstructionRegisterContents(Element elem, RegisterSet hasObj, RegisterSet noObj)
{
this.instruction= elem;
this.hasObj= hasObj;
this.noObj= noObj;
}
/**
* The instruction in question
*/
public Element instruction;
/**
* The set of registers that hold objects on this particular execution path
*/
public RegisterSet hasObj;
/**
* The set of registers that do not hold objects on this particular
* execution path
*/
public RegisterSet noObj;
}