/******************************************************************************
* Copyright (c) 2002 - 2006 IBM Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*****************************************************************************/
package com.ibm.wala.cast.ir.cfg;
import java.util.Iterator;
import com.ibm.wala.cfg.ControlFlowGraph;
import com.ibm.wala.cfg.IBasicBlock;
import com.ibm.wala.util.debug.Assertions;
public class Util {
public static <I, T extends IBasicBlock<I>> int whichPred(ControlFlowGraph<I, T> CFG, T Y, T X) {
int i = 0;
for (Iterator<?> N = CFG.getPredNodes(Y); N.hasNext(); i++)
if (N.next() == X)
return i;
Assertions.UNREACHABLE();
return -1;
}
}