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soot.dexpler.instructions.FilledNewArrayRangeInstruction Maven / Gradle / Ivy
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A Java Optimization Framework
package soot.dexpler.instructions;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 2012 Michael Markert, Frank Hartmann
*
* (c) 2012 University of Luxembourg - Interdisciplinary Centre for
* Security Reliability and Trust (SnT) - All rights reserved
* Alexandre Bartel
*
* %%
* 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 program 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 General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
import static soot.dexpler.Util.isFloatLike;
import org.jf.dexlib2.iface.instruction.Instruction;
import org.jf.dexlib2.iface.instruction.formats.Instruction3rc;
import org.jf.dexlib2.iface.reference.TypeReference;
import soot.ArrayType;
import soot.Local;
import soot.Type;
import soot.dexpler.DexBody;
import soot.dexpler.DexType;
import soot.dexpler.IDalvikTyper;
import soot.dexpler.typing.DalvikTyper;
import soot.jimple.ArrayRef;
import soot.jimple.AssignStmt;
import soot.jimple.IntConstant;
import soot.jimple.Jimple;
import soot.jimple.NewArrayExpr;
public class FilledNewArrayRangeInstruction extends FilledArrayInstruction {
public FilledNewArrayRangeInstruction(Instruction instruction, int codeAdress) {
super(instruction, codeAdress);
}
@Override
public void jimplify(DexBody body) {
if (!(instruction instanceof Instruction3rc)) {
throw new IllegalArgumentException("Expected Instruction3rc but got: " + instruction.getClass());
}
Instruction3rc filledNewArrayInstr = (Instruction3rc) instruction;
// NopStmt nopStmtBeginning = Jimple.v().newNopStmt();
// body.add(nopStmtBeginning);
int usedRegister = filledNewArrayInstr.getRegisterCount();
Type t = DexType.toSoot((TypeReference) filledNewArrayInstr.getReference());
// NewArrayExpr needs the ElementType as it increases the array dimension by 1
Type arrayType = ((ArrayType) t).getElementType();
NewArrayExpr arrayExpr = Jimple.v().newNewArrayExpr(arrayType, IntConstant.v(usedRegister));
Local arrayLocal = body.getStoreResultLocal();
AssignStmt assignStmt = Jimple.v().newAssignStmt(arrayLocal, arrayExpr);
body.add(assignStmt);
for (int i = 0; i < usedRegister; i++) {
ArrayRef arrayRef = Jimple.v().newArrayRef(arrayLocal, IntConstant.v(i));
AssignStmt assign
= Jimple.v().newAssignStmt(arrayRef, body.getRegisterLocal(i + filledNewArrayInstr.getStartRegister()));
addTags(assign);
body.add(assign);
}
// NopStmt nopStmtEnd = Jimple.v().newNopStmt();
// body.add(nopStmtEnd);
// defineBlock(nopStmtBeginning,nopStmtEnd);
setUnit(assignStmt);
// body.setDanglingInstruction(this);
if (IDalvikTyper.ENABLE_DVKTYPER) {
// Debug.printDbg(IDalvikTyper.DEBUG, "constraint: "+ assignStmt);
DalvikTyper.v().setType(assignStmt.getLeftOpBox(), arrayExpr.getType(), false);
// DalvikTyper.v().addConstraint(assignStmt.getLeftOpBox(), assignStmt.getRightOpBox());
}
}
@Override
boolean isUsedAsFloatingPoint(DexBody body, int register) {
Instruction3rc i = (Instruction3rc) instruction;
Type arrayType = DexType.toSoot((TypeReference) i.getReference());
int startRegister = i.getStartRegister();
int endRegister = startRegister + i.getRegisterCount();
return register >= startRegister && register <= endRegister && isFloatLike(arrayType);
}
}
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