1 /*
   2  * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 
  25 package org.graalvm.compiler.nodes.spi;
  26 
  27 import org.graalvm.compiler.api.replacements.MethodSubstitution;
  28 import org.graalvm.compiler.api.replacements.SnippetTemplateCache;
  29 import org.graalvm.compiler.bytecode.BytecodeProvider;
  30 import org.graalvm.compiler.core.common.CompilationIdentifier;
  31 import org.graalvm.compiler.debug.DebugContext;
  32 import org.graalvm.compiler.graph.NodeSourcePosition;
  33 import org.graalvm.compiler.nodes.Cancellable;
  34 import org.graalvm.compiler.nodes.StructuredGraph;
  35 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration;
  36 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderPlugin;
  37 import org.graalvm.compiler.nodes.graphbuilderconf.IntrinsicContext;
  38 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
  39 import org.graalvm.compiler.nodes.graphbuilderconf.MethodSubstitutionPlugin;
  40 import org.graalvm.compiler.options.OptionValues;
  41 
  42 import jdk.vm.ci.meta.ResolvedJavaMethod;
  43 
  44 /**
  45  * Interface for managing replacements.
  46  */
  47 public interface Replacements {
  48 
  49     CoreProviders getProviders();
  50 
  51     /**
  52      * Gets the object managing the various graph builder plugins used by this object when parsing
  53      * bytecode into a graph.
  54      */
  55     GraphBuilderConfiguration.Plugins getGraphBuilderPlugins();
  56 
  57     /**
  58      * Gets the plugin type that intrinsifies calls to {@code method}.
  59      */
  60     Class<? extends GraphBuilderPlugin> getIntrinsifyingPlugin(ResolvedJavaMethod method);
  61 
  62     /**
  63      * Gets the snippet graph derived from a given method.
  64      *
  65      * @param recursiveEntry if the snippet contains a call to this method, it's considered as
  66      *            recursive call and won't be processed for {@linkplain MethodSubstitution
  67      *            substitutions}.
  68      * @param args arguments to the snippet if available, otherwise {@code null}
  69      * @param trackNodeSourcePosition
  70      * @param options
  71      * @return the snippet graph, if any, that is derived from {@code method}
  72      */
  73     StructuredGraph getSnippet(ResolvedJavaMethod method, ResolvedJavaMethod recursiveEntry, Object[] args, boolean trackNodeSourcePosition, NodeSourcePosition replaceePosition,
  74                     OptionValues options);
  75 
  76     /**
  77      * Registers a method as snippet.
  78      */
  79     void registerSnippet(ResolvedJavaMethod method, ResolvedJavaMethod original, Object receiver, boolean trackNodeSourcePosition, OptionValues options);
  80 
  81     /**
  82      * Gets a graph that is a substitution for a given {@link MethodSubstitutionPlugin plugin} in
  83      * the {@link org.graalvm.compiler.nodes.graphbuilderconf.IntrinsicContext.CompilationContext
  84      * context}.
  85      *
  86      * @param plugin the plugin being substituted
  87      * @param original the method being substituted
  88      * @param context the kind of inlining to be performed for the substitution
  89      * @param allowAssumptions
  90      * @param cancellable
  91      * @param options
  92      * @return the method substitution graph, if any, that is derived from {@code method}
  93      */
  94     StructuredGraph getMethodSubstitution(MethodSubstitutionPlugin plugin, ResolvedJavaMethod original, IntrinsicContext.CompilationContext context,
  95                     StructuredGraph.AllowAssumptions allowAssumptions, Cancellable cancellable, OptionValues options);
  96 
  97     /**
  98      * Registers a plugin as a substitution.
  99      */
 100     void registerMethodSubstitution(MethodSubstitutionPlugin plugin, ResolvedJavaMethod original, IntrinsicContext.CompilationContext context, OptionValues options);
 101 
 102     /**
 103      * Gets a graph that is a substitution for a given method.
 104      *
 105      * @param invokeBci the call site BCI if this request is made for inlining a substitute
 106      *            otherwise {@code -1}
 107      * @param trackNodeSourcePosition
 108      * @param options
 109      * @return the graph, if any, that is a substitution for {@code method}
 110      */
 111     StructuredGraph getSubstitution(ResolvedJavaMethod method, int invokeBci, boolean trackNodeSourcePosition, NodeSourcePosition replaceePosition, OptionValues options);
 112 
 113     /**
 114      * Gets a graph produced from the intrinsic for a given method that can be compiled and
 115      * installed for the method.
 116      *
 117      * @param method
 118      * @param compilationId
 119      * @param debug
 120      * @param cancellable
 121      * @return an intrinsic graph that can be compiled and installed for {@code method} or null
 122      */
 123     StructuredGraph getIntrinsicGraph(ResolvedJavaMethod method, CompilationIdentifier compilationId, DebugContext debug, Cancellable cancellable);
 124 
 125     /**
 126      * Determines if there may be a
 127      * {@linkplain #getSubstitution(ResolvedJavaMethod, int, boolean, NodeSourcePosition, OptionValues)
 128      * substitution graph} for a given method.
 129      *
 130      * A call to {@link #getSubstitution} may still return {@code null} for {@code method} and
 131      * {@code invokeBci}. A substitution may be based on an {@link InvocationPlugin} that returns
 132      * {@code false} for {@link InvocationPlugin#execute} making it impossible to create a
 133      * substitute graph.
 134      *
 135      * @param invokeBci the call site BCI if this request is made for inlining a substitute
 136      *            otherwise {@code -1}
 137      * @return true iff there may be a substitution graph available for {@code method}
 138      */
 139     boolean hasSubstitution(ResolvedJavaMethod method, int invokeBci);
 140 
 141     /**
 142      * Gets the provider for accessing the bytecode of a substitution method if no other provider is
 143      * associated with the substitution method.
 144      */
 145     BytecodeProvider getDefaultReplacementBytecodeProvider();
 146 
 147     /**
 148      * Register snippet templates.
 149      */
 150     void registerSnippetTemplateCache(SnippetTemplateCache snippetTemplates);
 151 
 152     /**
 153      * Get snippet templates that were registered with
 154      * {@link Replacements#registerSnippetTemplateCache(SnippetTemplateCache)}.
 155      */
 156     <T extends SnippetTemplateCache> T getSnippetTemplateCache(Class<T> templatesClass);
 157 
 158     /**
 159      * Notifies this method that no further snippets will be registered via {@link #registerSnippet}
 160      * or {@link #registerSnippetTemplateCache}.
 161      *
 162      * This is a hook for an implementation to check for or forbid late registration.
 163      */
 164     default void closeSnippetRegistration() {
 165     }
 166 }