| // Copyright (c) 2020, 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.horizontalclassmerging.policies; |
| |
| import com.android.tools.r8.graph.AppView; |
| import com.android.tools.r8.graph.CfCode; |
| import com.android.tools.r8.graph.Code; |
| import com.android.tools.r8.graph.DexProgramClass; |
| import com.android.tools.r8.graph.ProgramMethod; |
| import com.android.tools.r8.horizontalclassmerging.SingleClassPolicy; |
| import com.android.tools.r8.ir.optimize.Inliner.ConstraintWithTarget; |
| import com.android.tools.r8.shaking.AppInfoWithLiveness; |
| import com.android.tools.r8.shaking.MainDexDirectReferenceTracer; |
| import com.android.tools.r8.shaking.MainDexTracingResult; |
| import com.google.common.collect.Iterables; |
| |
| public class DontInlinePolicy extends SingleClassPolicy { |
| private final AppView<AppInfoWithLiveness> appView; |
| private final MainDexTracingResult mainDexTracingResult; |
| |
| public DontInlinePolicy( |
| AppView<AppInfoWithLiveness> appView, MainDexTracingResult mainDexTracingResult) { |
| this.appView = appView; |
| this.mainDexTracingResult = mainDexTracingResult; |
| } |
| |
| private boolean disallowInlining(ProgramMethod method) { |
| Code code = method.getDefinition().getCode(); |
| |
| // For non-jar/cf code we currently cannot guarantee that markForceInline() will succeed. |
| if (code == null || !code.isCfCode()) { |
| return true; |
| } |
| |
| CfCode cfCode = code.asCfCode(); |
| |
| ConstraintWithTarget constraint = |
| cfCode.computeInliningConstraint(method, appView, appView.graphLens(), method); |
| if (constraint == ConstraintWithTarget.NEVER) { |
| return true; |
| } |
| |
| // Constructors can have references beyond the root main dex classes. This can increase the |
| // size of the main dex dependent classes and we should bail out. |
| if (mainDexTracingResult.getRoots().contains(method.getHolderType()) |
| && MainDexDirectReferenceTracer.hasReferencesOutsideFromCode( |
| appView.appInfo(), method, mainDexTracingResult.getRoots())) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public boolean canMerge(DexProgramClass program) { |
| return !Iterables.any( |
| program.directProgramMethods(), |
| method -> method.getDefinition().isInstanceInitializer() && disallowInlining(method)); |
| } |
| } |