/*
* 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.
*
* This file is a derivative of code released under the terms listed below.
*
*/
/*
*
* Copyright (c) 2009-2012,
*
* Adam Fuchs <afuchs@cs.umd.edu>
* Avik Chaudhuri <avik@cs.umd.edu>
* Steve Suh <suhsteve@gmail.com>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The names of the contributors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*
*/
package com.ibm.wala.dalvik.dex.instructions;
import org.jf.dexlib.Code.Opcode;
import com.ibm.wala.cast.ir.ssa.CAstUnaryOp;
import com.ibm.wala.dalvik.classLoader.DexIMethod;
import com.ibm.wala.shrikeBT.IUnaryOpInstruction;
import com.ibm.wala.shrikeBT.IUnaryOpInstruction.IOperator;
import com.ibm.wala.util.debug.Assertions;
public class UnaryOperation extends Instruction {
public static enum OpID {MOVE, MOVE_WIDE, MOVE_EXCEPTION, NOT, NEGINT, NOTINT, NEGLONG, NOTLONG, NEGFLOAT, NEGDOUBLE, DOUBLETOLONG, DOUBLETOFLOAT, INTTOBYTE, INTTOCHAR, INTTOSHORT, DOUBLETOINT, FLOATTODOUBLE, FLOATTOLONG, FLOATTOINT, LONGTODOUBLE, LONGTOFLOAT, LONGTOINT, INTTODOUBLE, INTTOFLOAT, INTTOLONG};
public final OpID op;
public final int source;
public final int destination;
public UnaryOperation(int pc, OpID op, int destination, int source, Opcode opcode, DexIMethod method) {
super(pc, opcode, method);
this.op = op;
this.destination = destination;
this.source = source;
}
@Override
public void visit(Visitor visitor)
{
visitor.visitUnaryOperation(this);
}
public boolean isConversion()
{
switch(op)
{
case DOUBLETOLONG:
case DOUBLETOFLOAT:
case INTTOBYTE:
case INTTOCHAR:
case INTTOSHORT:
case DOUBLETOINT:
case FLOATTODOUBLE:
case FLOATTOLONG:
case FLOATTOINT:
case LONGTODOUBLE:
case LONGTOFLOAT:
case LONGTOINT:
case INTTODOUBLE:
case INTTOFLOAT:
case INTTOLONG:
return true;
default:
return false;
}
}
public boolean isMove()
{
switch(op)
{
case MOVE:
case MOVE_WIDE:
return true;
default:
return false;
}
}
public IOperator getOperator() {
switch(op)
{
// SSA unary ops
case NOT:
return CAstUnaryOp.BITNOT;
case NEGINT:
return IUnaryOpInstruction.Operator.NEG;
case NOTINT:
return CAstUnaryOp.BITNOT;
case NEGLONG:
return IUnaryOpInstruction.Operator.NEG;
case NOTLONG:
return CAstUnaryOp.BITNOT;
case NEGFLOAT:
return IUnaryOpInstruction.Operator.NEG;
case NEGDOUBLE:
return IUnaryOpInstruction.Operator.NEG;
default:
Assertions.UNREACHABLE();
return null;
}
}
}