| // 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 static com.android.tools.r8.graph.DexEncodedMethod.asDexClassAndMethodOrNull; |
| import static com.android.tools.r8.ir.analysis.type.TypeAnalysis.toRefinedReceiverType; |
| |
| import com.android.tools.r8.cf.code.CfInvoke; |
| import com.android.tools.r8.code.InvokeVirtualRange; |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.DexClass; |
| import com.android.tools.r8.graph.DexClassAndMethod; |
| import com.android.tools.r8.graph.DexEncodedMethod; |
| import com.android.tools.r8.graph.DexMethod; |
| import com.android.tools.r8.graph.DexType; |
| import com.android.tools.r8.graph.ProgramMethod; |
| import com.android.tools.r8.ir.analysis.ClassInitializationAnalysis; |
| import com.android.tools.r8.ir.analysis.ClassInitializationAnalysis.AnalysisAssumption; |
| import com.android.tools.r8.ir.analysis.ClassInitializationAnalysis.Query; |
| import com.android.tools.r8.ir.analysis.type.ClassTypeElement; |
| import com.android.tools.r8.ir.analysis.type.TypeElement; |
| 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; |
| import com.android.tools.r8.shaking.AppInfoWithLiveness; |
| import java.util.List; |
| |
| public class InvokeVirtual extends InvokeMethodWithReceiver { |
| |
| public InvokeVirtual(DexMethod target, Value result, List<Value> arguments) { |
| super(target, result, arguments); |
| } |
| |
| public static Builder builder() { |
| return new Builder(); |
| } |
| |
| @Override |
| public boolean getInterfaceBit() { |
| return false; |
| } |
| |
| @Override |
| public int opcode() { |
| return Opcodes.INVOKE_VIRTUAL; |
| } |
| |
| @Override |
| public <T> T accept(InstructionVisitor<T> visitor) { |
| return visitor.visit(this); |
| } |
| |
| @Override |
| public Type getType() { |
| return Type.VIRTUAL; |
| } |
| |
| @Override |
| protected String getTypeString() { |
| return "Virtual"; |
| } |
| |
| @Override |
| public void buildDex(DexBuilder builder) { |
| com.android.tools.r8.code.Instruction instruction; |
| int argumentRegisters = requiredArgumentRegisters(); |
| builder.requestOutgoingRegisters(argumentRegisters); |
| if (needsRangedInvoke(builder)) { |
| assert argumentsConsecutive(builder); |
| int firstRegister = argumentRegisterValue(0, builder); |
| instruction = new InvokeVirtualRange(firstRegister, argumentRegisters, getInvokedMethod()); |
| } else { |
| int[] individualArgumentRegisters = new int[5]; |
| int argumentRegistersCount = fillArgumentRegisters(builder, individualArgumentRegisters); |
| instruction = new com.android.tools.r8.code.InvokeVirtual( |
| argumentRegistersCount, |
| getInvokedMethod(), |
| individualArgumentRegisters[0], // C |
| individualArgumentRegisters[1], // D |
| individualArgumentRegisters[2], // E |
| individualArgumentRegisters[3], // F |
| individualArgumentRegisters[4]); // G |
| } |
| addInvokeAndMoveResult(instruction, builder); |
| } |
| |
| @Override |
| public boolean identicalNonValueNonPositionParts(Instruction other) { |
| return other.isInvokeVirtual() && super.identicalNonValueNonPositionParts(other); |
| } |
| |
| @Override |
| public boolean isInvokeVirtual() { |
| return true; |
| } |
| |
| @Override |
| public InvokeVirtual asInvokeVirtual() { |
| return this; |
| } |
| |
| @Override |
| public DexClassAndMethod lookupSingleTarget( |
| AppView<?> appView, |
| ProgramMethod context, |
| TypeElement receiverUpperBoundType, |
| ClassTypeElement receiverLowerBoundType) { |
| return lookupSingleTarget( |
| appView, context, receiverUpperBoundType, receiverLowerBoundType, getInvokedMethod()); |
| } |
| |
| public static DexClassAndMethod lookupSingleTarget( |
| AppView<?> appView, |
| ProgramMethod context, |
| TypeElement receiverUpperBoundType, |
| ClassTypeElement receiverLowerBoundType, |
| DexMethod method) { |
| DexEncodedMethod result = null; |
| if (appView.appInfo().hasLiveness()) { |
| AppView<AppInfoWithLiveness> appViewWithLiveness = appView.withLiveness(); |
| result = |
| appViewWithLiveness |
| .appInfo() |
| .lookupSingleVirtualTarget( |
| method, |
| context, |
| false, |
| appView, |
| toRefinedReceiverType(receiverUpperBoundType, method, appViewWithLiveness), |
| receiverLowerBoundType); |
| } else { |
| // In D8, allow lookupSingleTarget() to be used for finding final library methods. This is |
| // used |
| // for library modeling. |
| DexType holder = method.holder; |
| if (holder.isClassType()) { |
| DexClass clazz = appView.definitionFor(holder); |
| if (clazz != null |
| && (clazz.isLibraryClass() || appView.libraryMethodOptimizer().isModeled(clazz.type))) { |
| DexEncodedMethod singleTargetCandidate = clazz.lookupMethod(method); |
| if (singleTargetCandidate != null |
| && (clazz.isFinal() || singleTargetCandidate.isFinal())) { |
| result = singleTargetCandidate; |
| } |
| } |
| } |
| } |
| return asDexClassAndMethodOrNull(result, appView); |
| } |
| |
| @Override |
| public ConstraintWithTarget inliningConstraint( |
| InliningConstraints inliningConstraints, ProgramMethod context) { |
| return inliningConstraints.forInvokeVirtual(getInvokedMethod(), context); |
| } |
| |
| @Override |
| public void buildCf(CfBuilder builder) { |
| builder.add(new CfInvoke(org.objectweb.asm.Opcodes.INVOKEVIRTUAL, getInvokedMethod(), false)); |
| } |
| |
| @Override |
| public boolean definitelyTriggersClassInitialization( |
| DexType clazz, |
| ProgramMethod context, |
| AppView<AppInfoWithLiveness> appView, |
| Query mode, |
| AnalysisAssumption assumption) { |
| return ClassInitializationAnalysis.InstructionUtils.forInvokeVirtual( |
| this, clazz, context, appView, mode, assumption); |
| } |
| |
| public static class Builder extends InvokeMethod.Builder<Builder, InvokeVirtual> { |
| |
| @Override |
| public InvokeVirtual build() { |
| return amend(new InvokeVirtual(method, outValue, arguments)); |
| } |
| |
| @Override |
| public Builder self() { |
| return this; |
| } |
| } |
| } |