| // Copyright (c) 2018, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| package com.android.tools.r8.cf.code; |
| |
| import com.android.tools.r8.cf.CfPrinter; |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.CfCompareHelper; |
| import com.android.tools.r8.graph.DexItemFactory; |
| import com.android.tools.r8.graph.DexProgramClass; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.graph.GraphLens; |
| import com.android.tools.r8.graph.InitClassLens; |
| import com.android.tools.r8.graph.ProgramMethod; |
| import com.android.tools.r8.ir.code.NumericType; |
| import com.android.tools.r8.ir.conversion.CfSourceCode; |
| import com.android.tools.r8.ir.conversion.CfState; |
| import com.android.tools.r8.ir.conversion.IRBuilder; |
| import com.android.tools.r8.ir.conversion.LensCodeRewriterUtils; |
| import com.android.tools.r8.ir.optimize.Inliner.ConstraintWithTarget; |
| import com.android.tools.r8.ir.optimize.InliningConstraints; |
| import com.android.tools.r8.naming.NamingLens; |
| import java.util.Comparator; |
| import org.objectweb.asm.MethodVisitor; |
| import org.objectweb.asm.Opcodes; |
| |
| public class CfIinc extends CfInstruction { |
| |
| private final int var; |
| private final int increment; |
| |
| public CfIinc(int var, int increment) { |
| this.var = var; |
| this.increment = increment; |
| } |
| |
| @Override |
| public int getCompareToId() { |
| return Opcodes.IINC; |
| } |
| |
| @Override |
| public int internalCompareTo(CfInstruction other, CfCompareHelper helper) { |
| return Comparator.comparingInt(CfIinc::getLocalIndex) |
| .thenComparing(CfIinc::getIncrement) |
| .compare(this, (CfIinc) other); |
| } |
| |
| @Override |
| public void write( |
| AppView<?> appView, |
| ProgramMethod context, |
| DexItemFactory dexItemFactory, |
| GraphLens graphLens, |
| InitClassLens initClassLens, |
| NamingLens namingLens, |
| LensCodeRewriterUtils rewriter, |
| MethodVisitor visitor) { |
| visitor.visitIincInsn(var, increment); |
| } |
| |
| @Override |
| public void print(CfPrinter printer) { |
| printer.print(this); |
| } |
| |
| public int getLocalIndex() { |
| return var; |
| } |
| |
| public int getIncrement() { |
| return increment; |
| } |
| |
| @Override |
| public void buildIR(IRBuilder builder, CfState state, CfSourceCode code) { |
| int local = state.read(var).register; |
| builder.addAddLiteral(NumericType.INT, local, local, increment); |
| } |
| |
| @Override |
| public ConstraintWithTarget inliningConstraint( |
| InliningConstraints inliningConstraints, DexProgramClass context) { |
| return ConstraintWithTarget.ALWAYS; |
| } |
| |
| @Override |
| public void evaluate( |
| CfFrameVerificationHelper frameBuilder, |
| DexType context, |
| DexType returnType, |
| DexItemFactory factory, |
| InitClassLens initClassLens) { |
| frameBuilder.readLocal(var, factory.intType); |
| } |
| } |