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// 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.code.CfInvoke;
import com.android.tools.r8.code.InvokeSuperRange;
import com.android.tools.r8.graph.AppView;
import com.android.tools.r8.graph.DexClassAndMethod;
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 InvokeSuper extends InvokeMethodWithReceiver {
public final boolean isInterface;
public InvokeSuper(DexMethod target, Value result, List<Value> arguments, boolean isInterface) {
super(target, result, arguments);
this.isInterface = isInterface;
}
@Override
public boolean getInterfaceBit() {
return isInterface;
}
@Override
public int opcode() {
return Opcodes.INVOKE_SUPER;
}
@Override
public <T> T accept(InstructionVisitor<T> visitor) {
return visitor.visit(this);
}
@Override
public Type getType() {
return Type.SUPER;
}
@Override
protected String getTypeString() {
return "Super";
}
@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 InvokeSuperRange(firstRegister, argumentRegisters, getInvokedMethod());
} else {
int[] individualArgumentRegisters = new int[5];
int argumentRegistersCount = fillArgumentRegisters(builder, individualArgumentRegisters);
instruction = new com.android.tools.r8.code.InvokeSuper(
argumentRegistersCount,
getInvokedMethod(),
individualArgumentRegisters[0], // C
individualArgumentRegisters[1], // D
individualArgumentRegisters[2], // E
individualArgumentRegisters[3], // F
individualArgumentRegisters[4]); // G
}
addInvokeAndMoveResult(instruction, builder);
}
@Override
public void buildCf(CfBuilder builder) {
builder.add(
new CfInvoke(org.objectweb.asm.Opcodes.INVOKESPECIAL, getInvokedMethod(), isInterface));
}
@Override
public boolean identicalNonValueNonPositionParts(Instruction other) {
return other.isInvokeSuper() && super.identicalNonValueNonPositionParts(other);
}
@Override
public boolean isInvokeSuper() {
return true;
}
@Override
public InvokeSuper asInvokeSuper() {
return this;
}
@Override
public DexClassAndMethod lookupSingleTarget(
AppView<?> appView,
ProgramMethod context,
TypeElement receiverUpperBoundType,
ClassTypeElement receiverLowerBoundType) {
if (appView.appInfo().hasLiveness() && context != null) {
AppView<AppInfoWithLiveness> appViewWithLiveness = appView.withLiveness();
AppInfoWithLiveness appInfo = appViewWithLiveness.appInfo();
if (appInfo.isSubtype(context.getHolderType(), getInvokedMethod().holder)) {
return appInfo.lookupSuperTarget(getInvokedMethod(), context);
}
}
return null;
}
@Override
public ConstraintWithTarget inliningConstraint(
InliningConstraints inliningConstraints, ProgramMethod context) {
return inliningConstraints.forInvokeSuper(getInvokedMethod(), context);
}
@Override
public boolean definitelyTriggersClassInitialization(
DexType clazz,
ProgramMethod context,
AppView<AppInfoWithLiveness> appView,
Query mode,
AnalysisAssumption assumption) {
return ClassInitializationAnalysis.InstructionUtils.forInvokeSuper(
this, clazz, context, appView, mode, assumption);
}
}