soot.jimple.toolkits.scalar.PessimisticAvailableExpressionsAnalysis Maven / Gradle / Ivy
/* Soot - a J*va Optimization Framework
* Copyright (C) 2004 Jennifer Lhotak
*
* This library 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the Sable Research Group and others 1997-1999.
* See the 'credits' file distributed with Soot for the complete list of
* contributors. (Soot is distributed at http://www.sable.mcgill.ca/soot)
*/
package soot.jimple.toolkits.scalar;
import soot.*;
import soot.toolkits.graph.*;
/** Implements an available expressions analysis on local variables.
* pessimistic analysis - for teaching 621*/
public class PessimisticAvailableExpressionsAnalysis extends SlowAvailableExpressionsAnalysis
{
public PessimisticAvailableExpressionsAnalysis(DirectedGraph dg, SootMethod m, SideEffectTester st){
super(dg);
}
protected Object newInitialFlow()
{
Object newSet = emptySet.clone();
//((ToppedSet)newSet).setTop(true);
return newSet;
}
}