| // Copyright (c) 2017, 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.ir.code; |
| |
| import com.android.tools.r8.cf.LoadStoreHelper; |
| import com.android.tools.r8.cf.TypeVerificationHelper; |
| import com.android.tools.r8.cf.code.CfConstMethodHandle; |
| import com.android.tools.r8.dex.Constants; |
| import com.android.tools.r8.graph.AppInfo; |
| import com.android.tools.r8.graph.DexMethodHandle; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.ir.analysis.type.TypeLatticeElement; |
| import com.android.tools.r8.ir.conversion.CfBuilder; |
| import com.android.tools.r8.ir.conversion.DexBuilder; |
| import java.util.function.Function; |
| |
| public class ConstMethodHandle extends ConstInstruction { |
| |
| private final DexMethodHandle methodHandle; |
| |
| public ConstMethodHandle(Value dest, DexMethodHandle methodHandle) { |
| super(dest); |
| dest.markNeverNull(); |
| this.methodHandle = methodHandle; |
| } |
| |
| public Value dest() { |
| return outValue; |
| } |
| |
| public DexMethodHandle getValue() { |
| return methodHandle; |
| } |
| |
| @Override |
| public void buildDex(DexBuilder builder) { |
| int dest = builder.allocatedRegister(dest(), getNumber()); |
| builder.add(this, new com.android.tools.r8.code.ConstMethodHandle(dest, methodHandle)); |
| } |
| |
| @Override |
| public void buildCf(CfBuilder builder) { |
| builder.add(new CfConstMethodHandle(methodHandle)); |
| } |
| |
| @Override |
| public boolean identicalNonValueNonPositionParts(Instruction other) { |
| return other.asConstMethodHandle().methodHandle == methodHandle; |
| } |
| |
| @Override |
| public int compareNonValueParts(Instruction other) { |
| return methodHandle.slowCompareTo(other.asConstMethodHandle().methodHandle); |
| } |
| |
| @Override |
| public int maxInValueRegister() { |
| assert false : "ConstMethodHandle has no register arguments."; |
| return 0; |
| } |
| |
| @Override |
| public int maxOutValueRegister() { |
| return Constants.U8BIT_MAX; |
| } |
| |
| @Override |
| public String toString() { |
| return super.toString() + " \"" + methodHandle + "\""; |
| } |
| |
| @Override |
| public boolean instructionTypeCanThrow() { |
| return true; |
| } |
| |
| @Override |
| public boolean isOutConstant() { |
| return true; |
| } |
| |
| @Override |
| public boolean isConstMethodHandle() { |
| return true; |
| } |
| |
| @Override |
| public ConstMethodHandle asConstMethodHandle() { |
| return this; |
| } |
| |
| @Override |
| public TypeLatticeElement evaluate( |
| AppInfo appInfo, Function<Value, TypeLatticeElement> getLatticeElement) { |
| return TypeLatticeElement.fromDexType(appInfo.dexItemFactory.methodHandleType, false); |
| } |
| |
| @Override |
| public DexType computeVerificationType(TypeVerificationHelper helper) { |
| return helper.getFactory().methodHandleType; |
| } |
| |
| @Override |
| public void insertLoadAndStores(InstructionListIterator it, LoadStoreHelper helper) { |
| helper.storeOutValue(this, it); |
| } |
| } |