| // Copyright (c) 2016, 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.graph; |
| |
| import com.android.tools.r8.dex.MixedSectionCollection; |
| import com.android.tools.r8.dex.code.CfOrDexInstruction; |
| import com.android.tools.r8.errors.Unreachable; |
| import com.android.tools.r8.graph.bytecodemetadata.BytecodeInstructionMetadata; |
| import com.android.tools.r8.graph.bytecodemetadata.BytecodeMetadata; |
| import com.android.tools.r8.graph.lens.GraphLens; |
| import com.android.tools.r8.graph.proto.RewrittenPrototypeDescription; |
| import com.android.tools.r8.ir.code.IRCode; |
| import com.android.tools.r8.ir.code.NumberGenerator; |
| import com.android.tools.r8.ir.code.Position; |
| import com.android.tools.r8.ir.code.Position.PositionBuilder; |
| import com.android.tools.r8.ir.conversion.MethodConversionOptions.MutableMethodConversionOptions; |
| import com.android.tools.r8.origin.Origin; |
| import com.android.tools.r8.utils.RetracerForCodePrinting; |
| import it.unimi.dsi.fastutil.ints.Int2ReferenceMap; |
| import java.util.function.Consumer; |
| |
| public abstract class Code extends CachedHashValueDexItem { |
| |
| public final IRCode buildIR(ProgramMethod method, AppView<?> appView, Origin origin) { |
| return buildIR(method, appView, origin, new MutableMethodConversionOptions(appView.options())); |
| } |
| |
| public abstract IRCode buildIR( |
| ProgramMethod method, |
| AppView<?> appView, |
| Origin origin, |
| MutableMethodConversionOptions conversionOptions); |
| |
| public IRCode buildInliningIR( |
| ProgramMethod context, |
| ProgramMethod method, |
| AppView<?> appView, |
| GraphLens codeLens, |
| NumberGenerator valueNumberGenerator, |
| Position callerPosition, |
| Origin origin, |
| RewrittenPrototypeDescription protoChanges) { |
| throw new Unreachable("Unexpected attempt to build IR graph for inlining from: " |
| + getClass().getCanonicalName()); |
| } |
| |
| public GraphLens getCodeLens(AppView<?> appView) { |
| return appView.codeLens(); |
| } |
| |
| public BytecodeMetadata<? extends CfOrDexInstruction> getMetadata() { |
| return null; |
| } |
| |
| public BytecodeInstructionMetadata getMetadata(CfOrDexInstruction instruction) { |
| return null; |
| } |
| |
| public abstract void registerCodeReferences(ProgramMethod method, UseRegistry registry); |
| |
| public abstract void registerCodeReferencesForDesugaring( |
| ClasspathMethod method, UseRegistry registry); |
| |
| public void registerArgumentReferences(DexEncodedMethod method, ArgumentUse registry) { |
| throw new Unreachable(); |
| } |
| |
| public Int2ReferenceMap<DebugLocalInfo> collectParameterInfo( |
| DexEncodedMethod encodedMethod, AppView<?> appView) { |
| throw new Unreachable(); |
| } |
| |
| @Override |
| public abstract String toString(); |
| |
| public abstract String toString(DexEncodedMethod method, RetracerForCodePrinting retracer); |
| |
| public boolean isCfCode() { |
| return false; |
| } |
| |
| public boolean isCfWritableCode() { |
| return false; |
| } |
| |
| public boolean isDefaultInstanceInitializerCode() { |
| return false; |
| } |
| |
| public DefaultInstanceInitializerCode asDefaultInstanceInitializerCode() { |
| return null; |
| } |
| |
| public boolean isDexCode() { |
| return false; |
| } |
| |
| public boolean isDexWritableCode() { |
| return false; |
| } |
| |
| public boolean isHorizontalClassMergerCode() { |
| return false; |
| } |
| |
| public boolean isIncompleteHorizontalClassMergerCode() { |
| return false; |
| } |
| |
| public boolean isOutlineCode() { |
| return false; |
| } |
| |
| public boolean isSharedCodeObject() { |
| return false; |
| } |
| |
| public boolean isThrowNullCode() { |
| return false; |
| } |
| |
| public boolean hasMonitorInstructions() { |
| return false; |
| } |
| |
| public boolean isThrowExceptionCode() { |
| return false; |
| } |
| |
| public ThrowNullCode asThrowNullCode() { |
| return null; |
| } |
| |
| public ThrowExceptionCode asThrowExceptionCode() { |
| return null; |
| } |
| |
| /** Estimate the number of IR instructions emitted by buildIR(). */ |
| public int estimatedSizeForInlining() { |
| return Integer.MAX_VALUE; |
| } |
| |
| /** Compute estimatedSizeForInlining() <= threshold. */ |
| public boolean estimatedSizeForInliningAtMost(int threshold) { |
| return estimatedSizeForInlining() <= threshold; |
| } |
| |
| public abstract int estimatedDexCodeSizeUpperBoundInBytes(); |
| |
| public CfCode asCfCode() { |
| throw new Unreachable(getClass().getCanonicalName() + ".asCfCode()"); |
| } |
| |
| public CfWritableCode asCfWritableCode() { |
| throw new Unreachable(getClass().getCanonicalName() + ".asCfWritableCode()"); |
| } |
| |
| public LazyCfCode asLazyCfCode() { |
| throw new Unreachable(getClass().getCanonicalName() + ".asLazyCfCode()"); |
| } |
| |
| public DexCode asDexCode() { |
| throw new Unreachable(getClass().getCanonicalName() + ".asDexCode()"); |
| } |
| |
| public DexWritableCode asDexWritableCode() { |
| throw new Unreachable(getClass().getCanonicalName() + ".asDexWritableCode()"); |
| } |
| |
| @Override |
| void collectMixedSectionItems(MixedSectionCollection collection) { |
| throw new Unreachable(); |
| } |
| |
| public abstract boolean isEmptyVoidMethod(); |
| |
| public boolean verifyNoInputReaders() { |
| return true; |
| } |
| |
| public Code getCodeAsInlining(DexMethod caller, DexEncodedMethod callee, DexItemFactory factory) { |
| return getCodeAsInlining(caller, callee.getReference(), factory, callee.isD8R8Synthesized()); |
| } |
| |
| public Code getCodeAsInlining( |
| DexMethod caller, DexMethod callee, DexItemFactory factory, boolean isCalleeD8R8Synthesized) { |
| throw new Unreachable(); |
| } |
| |
| public static Position newInlineePosition( |
| Position callerPosition, Position oldPosition, boolean isCalleeD8R8Synthesized) { |
| Position outermostCaller = oldPosition.getOutermostCaller(); |
| if (!isCalleeD8R8Synthesized) { |
| return removeSameMethodAndLineZero(oldPosition, callerPosition); |
| } |
| // We can replace the position since the callee was synthesized by the compiler, however, if |
| // the position carries special information we need to copy it. |
| if (!outermostCaller.isOutline() && !outermostCaller.isRemoveInnerFramesIfThrowingNpe()) { |
| return oldPosition.replacePosition(outermostCaller, callerPosition); |
| } |
| assert !callerPosition.isOutline(); |
| PositionBuilder<?, ?> positionBuilder = |
| outermostCaller |
| .builderWithCopy() |
| .setMethod(callerPosition.getMethod()) |
| .setLine(callerPosition.getLine()); |
| if (callerPosition.isRemoveInnerFramesIfThrowingNpe()) { |
| positionBuilder.setRemoveInnerFramesIfThrowingNpe(true); |
| } |
| return oldPosition.replacePosition(outermostCaller, positionBuilder.build()); |
| } |
| |
| @Deprecated() |
| // TODO(b/261971803): When having complete control over the positions we should not need this. |
| private static Position removeSameMethodAndLineZero( |
| Position calleePosition, Position callerPosition) { |
| Position outermostCaller = calleePosition.getOutermostCaller(); |
| if (outermostCaller.getLine() == 0) { |
| while (callerPosition != null |
| && outermostCaller.getMethod() == callerPosition.getMethod() |
| && callerPosition.getLine() == 0) { |
| callerPosition = callerPosition.getCallerPosition(); |
| } |
| } |
| return calleePosition.withOutermostCallerPosition(callerPosition); |
| } |
| |
| public void forEachPosition(Consumer<Position> positionConsumer) { |
| // Intentionally empty. Override where we have fully build CF or DEX code. |
| } |
| } |