com.oracle.svm.hosted.code

Class HostedReplacements

java.lang.Object

org.graalvm.compiler.replacements.ReplacementsImpl

com.oracle.svm.core.graal.meta.SubstrateReplacements

com.oracle.svm.hosted.code.HostedReplacements

All Implemented Interfaces:

org.graalvm.compiler.nodes.graphbuilderconf.GraphBuilderPlugin, org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin, org.graalvm.compiler.nodes.spi.Replacements

public class HostedReplacements
extends SubstrateReplacements

Snippets are parsed before the static analysis using SubstrateReplacements. This ensures that snippets do not use analysis-specific nodes - they are parsed using the same BytecodeParser subclass also used for parsing the snippets we use for runtime compilation. The parsing using the AnalysisUniverse. We cannot parse snippets again before compilation with the HostedUniverse: the static analysis does not see the individual methods that are inlined into snippets, only the final graph for snippets after aggressive inlining and constant folding. Therefore, many methods used inside snippets are not marked as invoked. Therefore, we re-use the snippets parsed before static analysis also for compilation. We need to transplant these snippets from the AnalysisUniverse to the HostedUniverse, i.e., we need to change out all metadata objects (types, methods, fields, ...). This is easy because the snippets are encoded anyway, so we have a single Object[] array with all objects referenced from the snippet graphs. The object replacement is done in HostedReplacements.replaceAnalysisObjects(java.lang.Object).

Nested Class Summary

Nested classes/interfaces inherited from class com.oracle.svm.core.graal.meta.SubstrateReplacements

SubstrateReplacements.Builder, SubstrateReplacements.GraphMakerFactory, SubstrateReplacements.SnippetInlineInvokePlugin

Nested classes/interfaces inherited from class org.graalvm.compiler.replacements.ReplacementsImpl

org.graalvm.compiler.replacements.ReplacementsImpl.GraphMaker

Nested classes/interfaces inherited from interface org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin

org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin.InlineInfo

Field Summary

Fields inherited from class org.graalvm.compiler.replacements.ReplacementsImpl

defaultBytecodeProvider, graphs, options, providers, snippetReflection, target

Constructor Summary

Constructors

Constructor and Description

HostedReplacements(HostedUniverse hUniverse, org.graalvm.compiler.phases.util.Providers providers, org.graalvm.compiler.api.replacements.SnippetReflectionProvider snippetReflection, jdk.vm.ci.code.TargetDescription target, com.oracle.graal.pointsto.meta.HostedProviders anaylysisProviders, org.graalvm.compiler.bytecode.BytecodeProvider bytecodeProvider, org.graalvm.compiler.options.OptionValues options)

Method Summary

Modifier and Type	Method and Description
void	encodeSnippets()
void	registerSnippet(jdk.vm.ci.meta.ResolvedJavaMethod m, boolean trackNodeSourcePosition) Compiles the snippet and stores the graph.

Methods inherited from class com.oracle.svm.core.graal.meta.SubstrateReplacements

copyFrom, createGraphMaker, getDelayedInvocationPluginMethods, getSnippet, getSnippetGraphs, getSnippetMethods, getSnippetNodeClasses, getSubstitution, getSubstitutionBytecode, hasSubstitution, registerImmutableObjects, setGraphBuilderPlugins

Methods inherited from class org.graalvm.compiler.replacements.ReplacementsImpl

getDefaultReplacementBytecodeProvider, getGraphBuilderPlugins, getOptions, getSnippet, getSnippetTemplateCache, hasGeneratedInvocationPluginAnnotation, hasGenericInvocationPluginAnnotation, makeGraph, notifyNotInlined, openDebugContext, registerSnippetTemplateCache, shouldInlineInvoke

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.graalvm.compiler.nodes.graphbuilderconf.InlineInvokePlugin

notifyAfterInline, notifyBeforeInline

Constructor Detail

HostedReplacements

public HostedReplacements(HostedUniverse hUniverse,
                          org.graalvm.compiler.phases.util.Providers providers,
                          org.graalvm.compiler.api.replacements.SnippetReflectionProvider snippetReflection,
                          jdk.vm.ci.code.TargetDescription target,
                          com.oracle.graal.pointsto.meta.HostedProviders anaylysisProviders,
                          org.graalvm.compiler.bytecode.BytecodeProvider bytecodeProvider,
                          org.graalvm.compiler.options.OptionValues options)

Method Detail

registerSnippet

public void registerSnippet(jdk.vm.ci.meta.ResolvedJavaMethod m,
                            boolean trackNodeSourcePosition)

Description copied from class: SubstrateReplacements

Compiles the snippet and stores the graph.

Specified by:

registerSnippet in interface org.graalvm.compiler.nodes.spi.Replacements

Overrides:

registerSnippet in class SubstrateReplacements

encodeSnippets

public void encodeSnippets()

Overrides:

encodeSnippets in class SubstrateReplacements