141 lines
4.4 KiB
Java
141 lines
4.4 KiB
Java
/*
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* This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html.
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*
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* This file is a derivative of code released under the terms listed below.
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*
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*/
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/*
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*
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* Copyright (c) 2009-2012,
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*
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* Adam Fuchs <afuchs@cs.umd.edu>
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* Avik Chaudhuri <avik@cs.umd.edu>
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* Steve Suh <suhsteve@gmail.com>
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The names of the contributors may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*
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*/
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package com.ibm.wala.dalvik.dex.instructions;
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import org.jf.dexlib.Code.Opcode;
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import com.ibm.wala.cast.ir.ssa.CAstUnaryOp;
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import com.ibm.wala.dalvik.classLoader.DexIMethod;
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import com.ibm.wala.shrikeBT.IUnaryOpInstruction;
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import com.ibm.wala.shrikeBT.IUnaryOpInstruction.IOperator;
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import com.ibm.wala.util.debug.Assertions;
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public class UnaryOperation extends Instruction {
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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};
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public final OpID op;
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public final int source;
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public final int destination;
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public UnaryOperation(int pc, OpID op, int destination, int source, Opcode opcode, DexIMethod method) {
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super(pc, opcode, method);
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this.op = op;
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this.destination = destination;
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this.source = source;
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}
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@Override
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public void visit(Visitor visitor)
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{
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visitor.visitUnaryOperation(this);
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}
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public boolean isConversion()
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{
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switch(op)
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{
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case DOUBLETOLONG:
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case DOUBLETOFLOAT:
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case INTTOBYTE:
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case INTTOCHAR:
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case INTTOSHORT:
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case DOUBLETOINT:
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case FLOATTODOUBLE:
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case FLOATTOLONG:
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case FLOATTOINT:
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case LONGTODOUBLE:
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case LONGTOFLOAT:
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case LONGTOINT:
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case INTTODOUBLE:
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case INTTOFLOAT:
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case INTTOLONG:
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return true;
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default:
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return false;
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}
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}
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public boolean isMove()
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{
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switch(op)
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{
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case MOVE:
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case MOVE_WIDE:
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return true;
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default:
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return false;
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}
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}
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public IOperator getOperator() {
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switch(op)
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{
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// SSA unary ops
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case NOT:
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return CAstUnaryOp.BITNOT;
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case NEGINT:
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return IUnaryOpInstruction.Operator.NEG;
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case NOTINT:
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return CAstUnaryOp.BITNOT;
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case NEGLONG:
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return IUnaryOpInstruction.Operator.NEG;
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case NOTLONG:
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return CAstUnaryOp.BITNOT;
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case NEGFLOAT:
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return IUnaryOpInstruction.Operator.NEG;
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case NEGDOUBLE:
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return IUnaryOpInstruction.Operator.NEG;
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default:
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Assertions.UNREACHABLE();
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return null;
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}
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}
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}
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