| // 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.CfConstMethodType; |
| import com.android.tools.r8.dex.Constants; |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.DexProto; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.ir.analysis.type.Nullability; |
| 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 com.android.tools.r8.ir.optimize.Inliner.ConstraintWithTarget; |
| import com.android.tools.r8.ir.optimize.InliningConstraints; |
| |
| public class ConstMethodType extends ConstInstruction { |
| |
| private final DexProto methodType; |
| |
| public ConstMethodType(Value dest, DexProto methodType) { |
| super(dest); |
| this.methodType = methodType; |
| } |
| |
| @Override |
| public int opcode() { |
| return Opcodes.CONST_METHOD_TYPE; |
| } |
| |
| @Override |
| public <T> T accept(InstructionVisitor<T> visitor) { |
| return visitor.visit(this); |
| } |
| |
| public static ConstMethodType copyOf(IRCode code, ConstMethodType original) { |
| Value newValue = |
| new Value( |
| code.valueNumberGenerator.next(), |
| original.outValue().getTypeLattice(), |
| original.getLocalInfo()); |
| return copyOf(newValue, original); |
| } |
| |
| public static ConstMethodType copyOf(Value newValue, ConstMethodType original) { |
| return new ConstMethodType(newValue, original.getValue()); |
| } |
| |
| public Value dest() { |
| return outValue; |
| } |
| |
| public DexProto getValue() { |
| return methodType; |
| } |
| |
| @Override |
| public void buildDex(DexBuilder builder) { |
| int dest = builder.allocatedRegister(dest(), getNumber()); |
| builder.add(this, new com.android.tools.r8.code.ConstMethodType(dest, methodType)); |
| } |
| |
| @Override |
| public void buildCf(CfBuilder builder) { |
| builder.add(new CfConstMethodType(methodType)); |
| } |
| |
| @Override |
| public boolean identicalNonValueNonPositionParts(Instruction other) { |
| return other.isConstMethodType() && other.asConstMethodType().methodType == methodType; |
| } |
| |
| @Override |
| public int maxInValueRegister() { |
| assert false : "ConstMethodType has no register arguments."; |
| return 0; |
| } |
| |
| @Override |
| public int maxOutValueRegister() { |
| return Constants.U8BIT_MAX; |
| } |
| |
| @Override |
| public String toString() { |
| return super.toString() + " \"" + methodType + "\""; |
| } |
| |
| @Override |
| public boolean instructionTypeCanThrow() { |
| return true; |
| } |
| |
| @Override |
| public boolean isOutConstant() { |
| return true; |
| } |
| |
| @Override |
| public boolean isConstMethodType() { |
| return true; |
| } |
| |
| @Override |
| public ConstMethodType asConstMethodType() { |
| return this; |
| } |
| |
| @Override |
| public TypeLatticeElement evaluate(AppView<?> appView) { |
| return TypeLatticeElement.fromDexType( |
| appView.dexItemFactory().methodTypeType, Nullability.definitelyNotNull(), appView); |
| } |
| |
| @Override |
| public DexType computeVerificationType(AppView<?> appView, TypeVerificationHelper helper) { |
| return appView.dexItemFactory().methodTypeType; |
| } |
| |
| @Override |
| public void insertLoadAndStores(InstructionListIterator it, LoadStoreHelper helper) { |
| helper.storeOutValue(this, it); |
| } |
| |
| @Override |
| public ConstraintWithTarget inliningConstraint( |
| InliningConstraints inliningConstraints, DexType invocationContext) { |
| return inliningConstraints.forConstMethodType(); |
| } |
| } |