1 /*
   2  * Copyright (c) 2013, 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.Bytecode;
  30 import org.graalvm.compiler.bytecode.BytecodeProvider;
  31 import org.graalvm.compiler.core.common.CompilationIdentifier;
  32 import org.graalvm.compiler.debug.DebugContext;
  33 import org.graalvm.compiler.graph.NodeSourcePosition;
  34 import org.graalvm.compiler.nodes.StructuredGraph;
  35 import org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderConfiguration;
  36 import org.graalvm.compiler.nodes.graphbuilderconf.InvocationPlugin;
  37 import org.graalvm.compiler.options.OptionValues;
  38 
  39 import jdk.vm.ci.meta.ResolvedJavaMethod;
  40 
  41 /**
  42  * Interface for managing replacements.
  43  */
  44 public interface Replacements {
  45 
  46     OptionValues getOptions();
  47 
  48     /**
  49      * Gets the object managing the various graph builder plugins used by this object when parsing
  50      * bytecode into a graph.
  51      */
  52     GraphBuilderConfiguration.Plugins getGraphBuilderPlugins();
  53 
  54     /**
  55      * Gets the snippet graph derived from a given method.
  56      *
  57      * @param args arguments to the snippet if available, otherwise {@code null}
  58      * @param trackNodeSourcePosition
  59      * @return the snippet graph, if any, that is derived from {@code method}
  60      */
  61     StructuredGraph getSnippet(ResolvedJavaMethod method, Object[] args, boolean trackNodeSourcePosition, NodeSourcePosition replaceePosition);
  62 
  63     /**
  64      * Gets the snippet graph derived from a given method.
  65      *
  66      * @param recursiveEntry if the snippet contains a call to this method, it's considered as
  67      *            recursive call and won't be processed for {@linkplain MethodSubstitution
  68      *            substitutions}.
  69      * @param args arguments to the snippet if available, otherwise {@code null}
  70      * @param trackNodeSourcePosition
  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 
  75     /**
  76      * Registers a method as snippet.
  77      */
  78     void registerSnippet(ResolvedJavaMethod method, boolean trackNodeSourcePosition);
  79 
  80     /**
  81      * Gets a graph that is a substitution for a given method.
  82      *
  83      * @param invokeBci the call site BCI if this request is made for inlining a substitute
  84      *            otherwise {@code -1}
  85      * @param trackNodeSourcePosition
  86      * @return the graph, if any, that is a substitution for {@code method}
  87      */
  88     StructuredGraph getSubstitution(ResolvedJavaMethod method, int invokeBci, boolean trackNodeSourcePosition, NodeSourcePosition replaceePosition);
  89 
  90     /**
  91      * Gets the substitute bytecode for a given method.
  92      *
  93      * @return the bytecode to substitute for {@code method} or {@code null} if there is no
  94      *         substitute bytecode for {@code method}
  95      */
  96     Bytecode getSubstitutionBytecode(ResolvedJavaMethod method);
  97 
  98     /**
  99      * Gets a graph produced from the intrinsic for a given method that can be compiled and
 100      * installed for the method.
 101      *
 102      * @param method
 103      * @param compilationId
 104      * @param debug
 105      * @return an intrinsic graph that can be compiled and installed for {@code method} or null
 106      */
 107     StructuredGraph getIntrinsicGraph(ResolvedJavaMethod method, CompilationIdentifier compilationId, DebugContext debug);
 108 
 109     /**
 110      * Determines if there may be a
 111      * {@linkplain #getSubstitution(ResolvedJavaMethod, int, boolean, NodeSourcePosition)
 112      * substitution graph} for a given method.
 113      *
 114      * A call to {@link #getSubstitution} may still return {@code null} for {@code method} and
 115      * {@code invokeBci}. A substitution may be based on an {@link InvocationPlugin} that returns
 116      * {@code false} for {@link InvocationPlugin#execute} making it impossible to create a
 117      * substitute graph.
 118      *
 119      * @param invokeBci the call site BCI if this request is made for inlining a substitute
 120      *            otherwise {@code -1}
 121      * @return true iff there may be a substitution graph available for {@code method}
 122      */
 123     boolean hasSubstitution(ResolvedJavaMethod method, int invokeBci);
 124 
 125     /**
 126      * Gets the provider for accessing the bytecode of a substitution method if no other provider is
 127      * associated with the substitution method.
 128      */
 129     BytecodeProvider getDefaultReplacementBytecodeProvider();
 130 
 131     /**
 132      * Register snippet templates.
 133      */
 134     void registerSnippetTemplateCache(SnippetTemplateCache snippetTemplates);
 135 
 136     /**
 137      * Get snippet templates that were registered with
 138      * {@link Replacements#registerSnippetTemplateCache(SnippetTemplateCache)}.
 139      */
 140     <T extends SnippetTemplateCache> T getSnippetTemplateCache(Class<T> templatesClass);
 141 }