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/*
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* Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package org.graalvm.compiler.graph;
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import static org.graalvm.compiler.core.common.GraalOptions.TrackNodeInsertion;
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import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_IGNORED;
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import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_IGNORED;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Iterator;
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import java.util.function.Consumer;
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import jdk.internal.vm.compiler.collections.EconomicMap;
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import jdk.internal.vm.compiler.collections.Equivalence;
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import jdk.internal.vm.compiler.collections.UnmodifiableEconomicMap;
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import org.graalvm.compiler.core.common.GraalOptions;
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import org.graalvm.compiler.debug.CounterKey;
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import org.graalvm.compiler.debug.DebugCloseable;
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import org.graalvm.compiler.debug.DebugContext;
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import org.graalvm.compiler.debug.GraalError;
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import org.graalvm.compiler.debug.TimerKey;
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import org.graalvm.compiler.graph.Node.NodeInsertionStackTrace;
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import org.graalvm.compiler.graph.Node.ValueNumberable;
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import org.graalvm.compiler.graph.iterators.NodeIterable;
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import org.graalvm.compiler.options.Option;
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import org.graalvm.compiler.options.OptionKey;
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import org.graalvm.compiler.options.OptionType;
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import org.graalvm.compiler.options.OptionValues;
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import jdk.vm.ci.meta.ResolvedJavaMethod;
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/**
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* This class is a graph container, it contains the set of nodes that belong to this graph.
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*/
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public class Graph {
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public static class Options {
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@Option(help = "Verify graphs often during compilation when assertions are turned on", type = OptionType.Debug)//
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public static final OptionKey<Boolean> VerifyGraalGraphs = new OptionKey<>(true);
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@Option(help = "Perform expensive verification of graph inputs, usages, successors and predecessors", type = OptionType.Debug)//
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public static final OptionKey<Boolean> VerifyGraalGraphEdges = new OptionKey<>(false);
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@Option(help = "Graal graph compression is performed when percent of live nodes falls below this value", type = OptionType.Debug)//
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public static final OptionKey<Integer> GraphCompressionThreshold = new OptionKey<>(70);
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}
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private enum FreezeState {
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Unfrozen,
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TemporaryFreeze,
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DeepFreeze
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}
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public final String name;
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/**
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* The set of nodes in the graph, ordered by {@linkplain #register(Node) registration} time.
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*/
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Node[] nodes;
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/**
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* Source information to associate with newly created nodes.
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*/
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NodeSourcePosition currentNodeSourcePosition;
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/**
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* Records if updating of node source information is required when performing inlining.
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*/
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protected boolean trackNodeSourcePosition;
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/**
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* The number of valid entries in {@link #nodes}.
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*/
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int nodesSize;
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/**
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* Records the modification count for nodes. This is only used in assertions.
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*/
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private int[] nodeModCounts;
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/**
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* Records the modification count for nodes' usage lists. This is only used in assertions.
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*/
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private int[] nodeUsageModCounts;
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// these two arrays contain one entry for each NodeClass, indexed by NodeClass.iterableId.
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// they contain the first and last pointer to a linked list of all nodes with this type.
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private final ArrayList<Node> iterableNodesFirst;
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private final ArrayList<Node> iterableNodesLast;
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private int nodesDeletedSinceLastCompression;
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private int nodesDeletedBeforeLastCompression;
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/**
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* The number of times this graph has been compressed.
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*/
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int compressions;
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NodeEventListener nodeEventListener;
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/**
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* Used to global value number {@link ValueNumberable} {@linkplain NodeClass#isLeafNode() leaf}
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* nodes.
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*/
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private EconomicMap<Node, Node>[] cachedLeafNodes;
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private static final Equivalence NODE_VALUE_COMPARE = new Equivalence() {
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@Override
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public boolean equals(Object a, Object b) {
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if (a == b) {
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return true;
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}
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assert a.getClass() == b.getClass();
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return ((Node) a).valueEquals((Node) b);
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}
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@Override
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public int hashCode(Object k) {
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return ((Node) k).getNodeClass().valueNumber((Node) k);
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}
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};
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/**
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* Indicates that the graph should no longer be modified. Frozen graphs can be used by multiple
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* threads so it's only safe to read them.
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*/
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private FreezeState freezeState = FreezeState.Unfrozen;
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/**
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* The option values used while compiling this graph.
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*/
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private final OptionValues options;
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/**
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* The {@link DebugContext} used while compiling this graph.
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*/
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private DebugContext debug;
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private class NodeSourcePositionScope implements DebugCloseable {
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private final NodeSourcePosition previous;
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NodeSourcePositionScope(NodeSourcePosition sourcePosition) {
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previous = currentNodeSourcePosition;
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currentNodeSourcePosition = sourcePosition;
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}
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@Override
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public DebugContext getDebug() {
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return debug;
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}
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@Override
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public void close() {
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currentNodeSourcePosition = previous;
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}
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}
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public NodeSourcePosition currentNodeSourcePosition() {
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return currentNodeSourcePosition;
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}
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/**
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* Opens a scope in which the source information from {@code node} is copied into nodes created
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* within the scope. If {@code node} has no source information information, no scope is opened
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* and {@code null} is returned.
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*
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* @return a {@link DebugCloseable} for managing the opened scope or {@code null} if no scope
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* was opened
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*/
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public DebugCloseable withNodeSourcePosition(Node node) {
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return withNodeSourcePosition(node.getNodeSourcePosition());
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}
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/**
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* Opens a scope in which {@code sourcePosition} is copied into nodes created within the scope.
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* If {@code sourcePosition == null}, no scope is opened and {@code null} is returned.
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*
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* @return a {@link DebugCloseable} for managing the opened scope or {@code null} if no scope
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* was opened
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*/
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public DebugCloseable withNodeSourcePosition(NodeSourcePosition sourcePosition) {
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return trackNodeSourcePosition() && sourcePosition != null ? new NodeSourcePositionScope(sourcePosition) : null;
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}
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/**
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* Opens a scope in which newly created nodes do not get any source information added.
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*
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* @return a {@link DebugCloseable} for managing the opened scope
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*/
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public DebugCloseable withoutNodeSourcePosition() {
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return new NodeSourcePositionScope(null);
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}
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public boolean trackNodeSourcePosition() {
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return trackNodeSourcePosition;
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}
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public void setTrackNodeSourcePosition() {
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if (!trackNodeSourcePosition) {
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assert getNodeCount() == 1 : "can't change the value after nodes have been added";
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trackNodeSourcePosition = true;
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}
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}
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public static boolean trackNodeSourcePositionDefault(OptionValues options, DebugContext debug) {
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return (GraalOptions.TrackNodeSourcePosition.getValue(options) || debug.isDumpEnabledForMethod());
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}
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/**
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* Creates an empty Graph with no name.
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*/
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public Graph(OptionValues options, DebugContext debug) {
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this(null, options, debug, false);
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}
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/**
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* We only want the expensive modification count tracking when assertions are enabled for the
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* {@link Graph} class.
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*/
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@SuppressWarnings("all")
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public static boolean isModificationCountsEnabled() {
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boolean enabled = false;
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assert enabled = true;
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return enabled;
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}
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private static final int INITIAL_NODES_SIZE = 32;
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/**
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* Creates an empty Graph with a given name.
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*
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* @param name the name of the graph, used for debugging purposes
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*/
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public Graph(String name, OptionValues options, DebugContext debug, boolean trackNodeSourcePosition) {
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nodes = new Node[INITIAL_NODES_SIZE];
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iterableNodesFirst = new ArrayList<>(NodeClass.allocatedNodeIterabledIds());
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iterableNodesLast = new ArrayList<>(NodeClass.allocatedNodeIterabledIds());
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this.name = name;
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this.options = options;
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this.trackNodeSourcePosition = trackNodeSourcePosition || trackNodeSourcePositionDefault(options, debug);
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assert debug != null;
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this.debug = debug;
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if (isModificationCountsEnabled()) {
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nodeModCounts = new int[INITIAL_NODES_SIZE];
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nodeUsageModCounts = new int[INITIAL_NODES_SIZE];
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}
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}
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int extractOriginalNodeId(Node node) {
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int id = node.id;
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if (id <= Node.DELETED_ID_START) {
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id = Node.DELETED_ID_START - id;
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}
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return id;
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}
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int modCount(Node node) {
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int id = extractOriginalNodeId(node);
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if (id >= 0 && id < nodeModCounts.length) {
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return nodeModCounts[id];
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}
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return 0;
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}
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void incModCount(Node node) {
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int id = extractOriginalNodeId(node);
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if (id >= 0) {
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if (id >= nodeModCounts.length) {
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nodeModCounts = Arrays.copyOf(nodeModCounts, id * 2 + 30);
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}
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nodeModCounts[id]++;
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} else {
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assert false;
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}
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}
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int usageModCount(Node node) {
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int id = extractOriginalNodeId(node);
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if (id >= 0 && id < nodeUsageModCounts.length) {
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return nodeUsageModCounts[id];
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}
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return 0;
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}
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void incUsageModCount(Node node) {
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int id = extractOriginalNodeId(node);
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if (id >= 0) {
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if (id >= nodeUsageModCounts.length) {
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nodeUsageModCounts = Arrays.copyOf(nodeUsageModCounts, id * 2 + 30);
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}
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nodeUsageModCounts[id]++;
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} else {
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assert false;
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}
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}
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/**
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* Creates a copy of this graph.
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*
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* @param debugForCopy the debug context for the graph copy. This must not be the debug for this
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* graph if this graph can be accessed from multiple threads (e.g., it's in a cache
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* accessed by multiple threads).
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*/
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public final Graph copy(DebugContext debugForCopy) {
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return copy(name, null, debugForCopy);
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}
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/**
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* Creates a copy of this graph.
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*
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* @param duplicationMapCallback consumer of the duplication map created during the copying
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* @param debugForCopy the debug context for the graph copy. This must not be the debug for this
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* graph if this graph can be accessed from multiple threads (e.g., it's in a cache
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* accessed by multiple threads).
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*/
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public final Graph copy(Consumer<UnmodifiableEconomicMap<Node, Node>> duplicationMapCallback, DebugContext debugForCopy) {
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return copy(name, duplicationMapCallback, debugForCopy);
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}
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/**
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* Creates a copy of this graph.
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*
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* @param newName the name of the copy, used for debugging purposes (can be null)
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* @param debugForCopy the debug context for the graph copy. This must not be the debug for this
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* graph if this graph can be accessed from multiple threads (e.g., it's in a cache
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* accessed by multiple threads).
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*/
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public final Graph copy(String newName, DebugContext debugForCopy) {
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return copy(newName, null, debugForCopy);
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}
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/**
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* Creates a copy of this graph.
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*
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* @param newName the name of the copy, used for debugging purposes (can be null)
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* @param duplicationMapCallback consumer of the duplication map created during the copying
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* @param debugForCopy the debug context for the graph copy. This must not be the debug for this
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* graph if this graph can be accessed from multiple threads (e.g., it's in a cache
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* accessed by multiple threads).
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*/
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protected Graph copy(String newName, Consumer<UnmodifiableEconomicMap<Node, Node>> duplicationMapCallback, DebugContext debugForCopy) {
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Graph copy = new Graph(newName, options, debugForCopy, trackNodeSourcePosition());
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UnmodifiableEconomicMap<Node, Node> duplicates = copy.addDuplicates(getNodes(), this, this.getNodeCount(), (EconomicMap<Node, Node>) null);
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if (duplicationMapCallback != null) {
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duplicationMapCallback.accept(duplicates);
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}
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return copy;
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}
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public final OptionValues getOptions() {
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return options;
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}
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public DebugContext getDebug() {
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return debug;
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}
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/**
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* Resets the {@link DebugContext} for this graph to a new value. This is useful when a graph is
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* "handed over" from its creating thread to another thread.
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*
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* This must only be done when the current thread is no longer using the graph. This is in
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* general impossible to test due to races and since metrics can be updated at any time. As
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* such, this method only performs a weak sanity check that at least the current debug context
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* does not have a nested scope open (the top level scope will always be open if scopes are
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* enabled).
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*/
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public void resetDebug(DebugContext newDebug) {
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assert newDebug == debug || !debug.inNestedScope() : String.format("Cannot reset the debug context for %s while it has the nested scope \"%s\" open", this, debug.getCurrentScopeName());
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this.debug = newDebug;
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}
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@Override
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public String toString() {
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|
399 |
return name == null ? super.toString() : "Graph " + name;
|
|
400 |
}
|
|
401 |
|
|
402 |
/**
|
|
403 |
* Gets the number of live nodes in this graph. That is the number of nodes which have been
|
|
404 |
* added to the graph minus the number of deleted nodes.
|
|
405 |
*
|
|
406 |
* @return the number of live nodes in this graph
|
|
407 |
*/
|
|
408 |
public int getNodeCount() {
|
|
409 |
return nodesSize - getNodesDeletedSinceLastCompression();
|
|
410 |
}
|
|
411 |
|
|
412 |
/**
|
|
413 |
* Gets the number of times this graph has been {@linkplain #maybeCompress() compressed}. Node
|
|
414 |
* identifiers are only stable between compressions. To ensure this constraint is observed, any
|
|
415 |
* entity relying upon stable node identifiers should use {@link NodeIdAccessor}.
|
|
416 |
*/
|
|
417 |
public int getCompressions() {
|
|
418 |
return compressions;
|
|
419 |
}
|
|
420 |
|
|
421 |
/**
|
|
422 |
* Gets the number of nodes which have been deleted from this graph since it was last
|
|
423 |
* {@linkplain #maybeCompress() compressed}.
|
|
424 |
*/
|
|
425 |
public int getNodesDeletedSinceLastCompression() {
|
|
426 |
return nodesDeletedSinceLastCompression;
|
|
427 |
}
|
|
428 |
|
|
429 |
/**
|
|
430 |
* Gets the total number of nodes which have been deleted from this graph.
|
|
431 |
*/
|
|
432 |
public int getTotalNodesDeleted() {
|
|
433 |
return nodesDeletedSinceLastCompression + nodesDeletedBeforeLastCompression;
|
|
434 |
}
|
|
435 |
|
|
436 |
/**
|
|
437 |
* Adds a new node to the graph.
|
|
438 |
*
|
|
439 |
* @param node the node to be added
|
|
440 |
* @return the node which was added to the graph
|
|
441 |
*/
|
|
442 |
public <T extends Node> T add(T node) {
|
|
443 |
if (node.getNodeClass().valueNumberable()) {
|
|
444 |
throw new IllegalStateException("Using add for value numberable node. Consider using either unique or addWithoutUnique.");
|
|
445 |
}
|
|
446 |
return addHelper(node);
|
|
447 |
}
|
|
448 |
|
|
449 |
public <T extends Node> T addWithoutUnique(T node) {
|
|
450 |
return addHelper(node);
|
|
451 |
}
|
|
452 |
|
|
453 |
public <T extends Node> T addOrUnique(T node) {
|
|
454 |
if (node.getNodeClass().valueNumberable()) {
|
46344
|
455 |
return uniqueHelper(node);
|
43972
|
456 |
}
|
|
457 |
return add(node);
|
|
458 |
}
|
|
459 |
|
46371
|
460 |
public <T extends Node> T maybeAddOrUnique(T node) {
|
|
461 |
if (node.isAlive()) {
|
|
462 |
return node;
|
|
463 |
}
|
|
464 |
return addOrUnique(node);
|
|
465 |
}
|
|
466 |
|
43972
|
467 |
public <T extends Node> T addOrUniqueWithInputs(T node) {
|
46344
|
468 |
if (node.isAlive()) {
|
|
469 |
assert node.graph() == this;
|
|
470 |
return node;
|
|
471 |
} else {
|
|
472 |
assert node.isUnregistered();
|
|
473 |
addInputs(node);
|
|
474 |
if (node.getNodeClass().valueNumberable()) {
|
|
475 |
return uniqueHelper(node);
|
|
476 |
}
|
|
477 |
return add(node);
|
43972
|
478 |
}
|
|
479 |
}
|
|
480 |
|
48398
|
481 |
public <T extends Node> T addWithoutUniqueWithInputs(T node) {
|
|
482 |
addInputs(node);
|
|
483 |
return addHelper(node);
|
|
484 |
}
|
|
485 |
|
43972
|
486 |
private final class AddInputsFilter extends Node.EdgeVisitor {
|
|
487 |
|
|
488 |
@Override
|
|
489 |
public Node apply(Node self, Node input) {
|
|
490 |
if (!input.isAlive()) {
|
|
491 |
assert !input.isDeleted();
|
|
492 |
return addOrUniqueWithInputs(input);
|
|
493 |
} else {
|
|
494 |
return input;
|
|
495 |
}
|
|
496 |
}
|
|
497 |
|
|
498 |
}
|
|
499 |
|
|
500 |
private AddInputsFilter addInputsFilter = new AddInputsFilter();
|
|
501 |
|
|
502 |
private <T extends Node> void addInputs(T node) {
|
|
503 |
node.applyInputs(addInputsFilter);
|
|
504 |
}
|
|
505 |
|
|
506 |
private <T extends Node> T addHelper(T node) {
|
|
507 |
node.initialize(this);
|
|
508 |
return node;
|
|
509 |
}
|
|
510 |
|
|
511 |
/**
|
|
512 |
* The type of events sent to a {@link NodeEventListener}.
|
|
513 |
*/
|
|
514 |
public enum NodeEvent {
|
|
515 |
/**
|
|
516 |
* A node's input is changed.
|
|
517 |
*/
|
|
518 |
INPUT_CHANGED,
|
|
519 |
|
|
520 |
/**
|
|
521 |
* A node's {@linkplain Node#usages() usages} count dropped to zero.
|
|
522 |
*/
|
|
523 |
ZERO_USAGES,
|
|
524 |
|
|
525 |
/**
|
|
526 |
* A node was added to a graph.
|
|
527 |
*/
|
47798
|
528 |
NODE_ADDED,
|
|
529 |
|
|
530 |
/**
|
|
531 |
* A node was removed from the graph.
|
|
532 |
*/
|
52910
|
533 |
NODE_REMOVED
|
43972
|
534 |
}
|
|
535 |
|
|
536 |
/**
|
|
537 |
* Client interested in one or more node related events.
|
|
538 |
*/
|
47798
|
539 |
public abstract static class NodeEventListener {
|
43972
|
540 |
|
|
541 |
/**
|
47798
|
542 |
* A method called when a change event occurs.
|
|
543 |
*
|
|
544 |
* This method dispatches the event to user-defined triggers. The methods that change the
|
|
545 |
* graph (typically in Graph and Node) must call this method to dispatch the event.
|
43972
|
546 |
*
|
|
547 |
* @param e an event
|
|
548 |
* @param node the node related to {@code e}
|
|
549 |
*/
|
47798
|
550 |
final void event(NodeEvent e, Node node) {
|
|
551 |
switch (e) {
|
|
552 |
case INPUT_CHANGED:
|
|
553 |
inputChanged(node);
|
|
554 |
break;
|
|
555 |
case ZERO_USAGES:
|
|
556 |
usagesDroppedToZero(node);
|
|
557 |
break;
|
|
558 |
case NODE_ADDED:
|
|
559 |
nodeAdded(node);
|
|
560 |
break;
|
|
561 |
case NODE_REMOVED:
|
|
562 |
nodeRemoved(node);
|
|
563 |
break;
|
|
564 |
}
|
|
565 |
changed(e, node);
|
43972
|
566 |
}
|
|
567 |
|
|
568 |
/**
|
47798
|
569 |
* Notifies this listener about any change event in the graph.
|
|
570 |
*
|
|
571 |
* @param e an event
|
|
572 |
* @param node the node related to {@code e}
|
|
573 |
*/
|
|
574 |
public void changed(NodeEvent e, Node node) {
|
|
575 |
}
|
|
576 |
|
|
577 |
/**
|
|
578 |
* Notifies this listener about a change in a node's inputs.
|
43972
|
579 |
*
|
|
580 |
* @param node a node who has had one of its inputs changed
|
|
581 |
*/
|
47798
|
582 |
public void inputChanged(Node node) {
|
43972
|
583 |
}
|
|
584 |
|
|
585 |
/**
|
|
586 |
* Notifies this listener of a node becoming unused.
|
|
587 |
*
|
|
588 |
* @param node a node whose {@link Node#usages()} just became empty
|
|
589 |
*/
|
47798
|
590 |
public void usagesDroppedToZero(Node node) {
|
43972
|
591 |
}
|
|
592 |
|
|
593 |
/**
|
|
594 |
* Notifies this listener of an added node.
|
|
595 |
*
|
|
596 |
* @param node a node that was just added to the graph
|
|
597 |
*/
|
47798
|
598 |
public void nodeAdded(Node node) {
|
|
599 |
}
|
|
600 |
|
|
601 |
/**
|
|
602 |
* Notifies this listener of a removed node.
|
|
603 |
*
|
|
604 |
* @param node
|
|
605 |
*/
|
|
606 |
public void nodeRemoved(Node node) {
|
43972
|
607 |
}
|
|
608 |
}
|
|
609 |
|
|
610 |
/**
|
|
611 |
* Registers a given {@link NodeEventListener} with the enclosing graph until this object is
|
|
612 |
* {@linkplain #close() closed}.
|
|
613 |
*/
|
|
614 |
public final class NodeEventScope implements AutoCloseable {
|
|
615 |
NodeEventScope(NodeEventListener listener) {
|
|
616 |
if (nodeEventListener == null) {
|
|
617 |
nodeEventListener = listener;
|
|
618 |
} else {
|
|
619 |
nodeEventListener = new ChainedNodeEventListener(listener, nodeEventListener);
|
|
620 |
}
|
|
621 |
}
|
|
622 |
|
|
623 |
@Override
|
|
624 |
public void close() {
|
|
625 |
assert nodeEventListener != null;
|
|
626 |
if (nodeEventListener instanceof ChainedNodeEventListener) {
|
|
627 |
nodeEventListener = ((ChainedNodeEventListener) nodeEventListener).next;
|
|
628 |
} else {
|
|
629 |
nodeEventListener = null;
|
|
630 |
}
|
|
631 |
}
|
|
632 |
}
|
|
633 |
|
47798
|
634 |
private static class ChainedNodeEventListener extends NodeEventListener {
|
43972
|
635 |
|
|
636 |
NodeEventListener head;
|
|
637 |
NodeEventListener next;
|
|
638 |
|
|
639 |
ChainedNodeEventListener(NodeEventListener head, NodeEventListener next) {
|
|
640 |
this.head = head;
|
|
641 |
this.next = next;
|
|
642 |
}
|
|
643 |
|
|
644 |
@Override
|
47798
|
645 |
public void changed(NodeEvent e, Node node) {
|
|
646 |
head.event(e, node);
|
|
647 |
next.event(e, node);
|
43972
|
648 |
}
|
|
649 |
}
|
|
650 |
|
|
651 |
/**
|
|
652 |
* Registers a given {@link NodeEventListener} with this graph. This should be used in
|
|
653 |
* conjunction with try-with-resources statement as follows:
|
|
654 |
*
|
|
655 |
* <pre>
|
|
656 |
* try (NodeEventScope nes = graph.trackNodeEvents(listener)) {
|
|
657 |
* // make changes to the graph
|
|
658 |
* }
|
|
659 |
* </pre>
|
|
660 |
*/
|
|
661 |
public NodeEventScope trackNodeEvents(NodeEventListener listener) {
|
|
662 |
return new NodeEventScope(listener);
|
|
663 |
}
|
|
664 |
|
|
665 |
/**
|
|
666 |
* Looks for a node <i>similar</i> to {@code node} and returns it if found. Otherwise
|
|
667 |
* {@code node} is added to this graph and returned.
|
|
668 |
*
|
|
669 |
* @return a node similar to {@code node} if one exists, otherwise {@code node}
|
|
670 |
*/
|
|
671 |
public <T extends Node & ValueNumberable> T unique(T node) {
|
46344
|
672 |
return uniqueHelper(node);
|
43972
|
673 |
}
|
|
674 |
|
46344
|
675 |
<T extends Node> T uniqueHelper(T node) {
|
43972
|
676 |
assert node.getNodeClass().valueNumberable();
|
|
677 |
T other = this.findDuplicate(node);
|
|
678 |
if (other != null) {
|
49873
|
679 |
if (other.getNodeSourcePosition() == null) {
|
|
680 |
other.setNodeSourcePosition(node.getNodeSourcePosition());
|
|
681 |
}
|
43972
|
682 |
return other;
|
|
683 |
} else {
|
46344
|
684 |
T result = addHelper(node);
|
43972
|
685 |
if (node.getNodeClass().isLeafNode()) {
|
|
686 |
putNodeIntoCache(result);
|
|
687 |
}
|
|
688 |
return result;
|
|
689 |
}
|
|
690 |
}
|
|
691 |
|
46344
|
692 |
void removeNodeFromCache(Node node) {
|
|
693 |
assert node.graph() == this || node.graph() == null;
|
|
694 |
assert node.getNodeClass().valueNumberable();
|
|
695 |
assert node.getNodeClass().isLeafNode() : node.getClass();
|
|
696 |
|
|
697 |
int leafId = node.getNodeClass().getLeafId();
|
|
698 |
if (cachedLeafNodes != null && cachedLeafNodes.length > leafId && cachedLeafNodes[leafId] != null) {
|
|
699 |
cachedLeafNodes[leafId].removeKey(node);
|
|
700 |
}
|
|
701 |
}
|
|
702 |
|
|
703 |
@SuppressWarnings({"unchecked", "rawtypes"})
|
43972
|
704 |
void putNodeIntoCache(Node node) {
|
|
705 |
assert node.graph() == this || node.graph() == null;
|
|
706 |
assert node.getNodeClass().valueNumberable();
|
|
707 |
assert node.getNodeClass().isLeafNode() : node.getClass();
|
46344
|
708 |
|
|
709 |
int leafId = node.getNodeClass().getLeafId();
|
|
710 |
if (cachedLeafNodes == null || cachedLeafNodes.length <= leafId) {
|
|
711 |
EconomicMap[] newLeafNodes = new EconomicMap[leafId + 1];
|
|
712 |
if (cachedLeafNodes != null) {
|
|
713 |
System.arraycopy(cachedLeafNodes, 0, newLeafNodes, 0, cachedLeafNodes.length);
|
|
714 |
}
|
|
715 |
cachedLeafNodes = newLeafNodes;
|
|
716 |
}
|
|
717 |
|
|
718 |
if (cachedLeafNodes[leafId] == null) {
|
|
719 |
cachedLeafNodes[leafId] = EconomicMap.create(NODE_VALUE_COMPARE);
|
|
720 |
}
|
|
721 |
|
|
722 |
cachedLeafNodes[leafId].put(node, node);
|
43972
|
723 |
}
|
|
724 |
|
|
725 |
Node findNodeInCache(Node node) {
|
46344
|
726 |
int leafId = node.getNodeClass().getLeafId();
|
|
727 |
if (cachedLeafNodes == null || cachedLeafNodes.length <= leafId || cachedLeafNodes[leafId] == null) {
|
43972
|
728 |
return null;
|
|
729 |
}
|
46344
|
730 |
|
|
731 |
Node result = cachedLeafNodes[leafId].get(node);
|
|
732 |
assert result == null || result.isAlive() : result;
|
43972
|
733 |
return result;
|
|
734 |
}
|
|
735 |
|
|
736 |
/**
|
|
737 |
* Returns a possible duplicate for the given node in the graph or {@code null} if no such
|
|
738 |
* duplicate exists.
|
|
739 |
*/
|
|
740 |
@SuppressWarnings("unchecked")
|
|
741 |
public <T extends Node> T findDuplicate(T node) {
|
|
742 |
NodeClass<?> nodeClass = node.getNodeClass();
|
|
743 |
assert nodeClass.valueNumberable();
|
|
744 |
if (nodeClass.isLeafNode()) {
|
|
745 |
// Leaf node: look up in cache
|
|
746 |
Node cachedNode = findNodeInCache(node);
|
|
747 |
if (cachedNode != null && cachedNode != node) {
|
|
748 |
return (T) cachedNode;
|
|
749 |
} else {
|
|
750 |
return null;
|
|
751 |
}
|
|
752 |
} else {
|
|
753 |
/*
|
|
754 |
* Non-leaf node: look for another usage of the node's inputs that has the same data,
|
|
755 |
* inputs and successors as the node. To reduce the cost of this computation, only the
|
|
756 |
* input with lowest usage count is considered. If this node is the only user of any
|
|
757 |
* input then the search can terminate early. The usage count is only incremented once
|
|
758 |
* the Node is in the Graph, so account for that in the test.
|
|
759 |
*/
|
|
760 |
final int earlyExitUsageCount = node.graph() != null ? 1 : 0;
|
|
761 |
int minCount = Integer.MAX_VALUE;
|
|
762 |
Node minCountNode = null;
|
|
763 |
for (Node input : node.inputs()) {
|
|
764 |
int usageCount = input.getUsageCount();
|
|
765 |
if (usageCount == earlyExitUsageCount) {
|
|
766 |
return null;
|
|
767 |
} else if (usageCount < minCount) {
|
|
768 |
minCount = usageCount;
|
|
769 |
minCountNode = input;
|
|
770 |
}
|
|
771 |
}
|
|
772 |
if (minCountNode != null) {
|
|
773 |
for (Node usage : minCountNode.usages()) {
|
|
774 |
if (usage != node && nodeClass == usage.getNodeClass() && node.valueEquals(usage) && nodeClass.equalInputs(node, usage) &&
|
|
775 |
nodeClass.equalSuccessors(node, usage)) {
|
|
776 |
return (T) usage;
|
|
777 |
}
|
|
778 |
}
|
|
779 |
return null;
|
|
780 |
}
|
|
781 |
return null;
|
|
782 |
}
|
|
783 |
}
|
|
784 |
|
|
785 |
public boolean isNew(Mark mark, Node node) {
|
|
786 |
return node.id >= mark.getValue();
|
|
787 |
}
|
|
788 |
|
|
789 |
/**
|
|
790 |
* A snapshot of the {@linkplain Graph#getNodeCount() live node count} in a graph.
|
|
791 |
*/
|
|
792 |
public static class Mark extends NodeIdAccessor {
|
|
793 |
private final int value;
|
|
794 |
|
|
795 |
Mark(Graph graph) {
|
|
796 |
super(graph);
|
|
797 |
this.value = graph.nodeIdCount();
|
|
798 |
}
|
|
799 |
|
|
800 |
@Override
|
|
801 |
public boolean equals(Object obj) {
|
|
802 |
if (obj instanceof Mark) {
|
|
803 |
Mark other = (Mark) obj;
|
|
804 |
return other.getValue() == getValue() && other.getGraph() == getGraph();
|
|
805 |
}
|
|
806 |
return false;
|
|
807 |
}
|
|
808 |
|
|
809 |
@Override
|
|
810 |
public int hashCode() {
|
|
811 |
return value ^ (epoch + 11);
|
|
812 |
}
|
|
813 |
|
|
814 |
/**
|
|
815 |
* Determines if this mark is positioned at the first live node in the graph.
|
|
816 |
*/
|
|
817 |
public boolean isStart() {
|
|
818 |
return value == 0;
|
|
819 |
}
|
|
820 |
|
|
821 |
/**
|
|
822 |
* Gets the {@linkplain Graph#getNodeCount() live node count} of the associated graph when
|
|
823 |
* this object was created.
|
|
824 |
*/
|
|
825 |
int getValue() {
|
|
826 |
return value;
|
|
827 |
}
|
|
828 |
|
|
829 |
/**
|
|
830 |
* Determines if this mark still represents the {@linkplain Graph#getNodeCount() live node
|
|
831 |
* count} of the graph.
|
|
832 |
*/
|
|
833 |
public boolean isCurrent() {
|
|
834 |
return value == graph.nodeIdCount();
|
|
835 |
}
|
|
836 |
}
|
|
837 |
|
|
838 |
/**
|
|
839 |
* Gets a mark that can be used with {@link #getNewNodes}.
|
|
840 |
*/
|
|
841 |
public Mark getMark() {
|
|
842 |
return new Mark(this);
|
|
843 |
}
|
|
844 |
|
|
845 |
/**
|
|
846 |
* Returns an {@link Iterable} providing all nodes added since the last {@link Graph#getMark()
|
|
847 |
* mark}.
|
|
848 |
*/
|
|
849 |
public NodeIterable<Node> getNewNodes(Mark mark) {
|
|
850 |
final int index = mark == null ? 0 : mark.getValue();
|
|
851 |
return new NodeIterable<Node>() {
|
|
852 |
|
|
853 |
@Override
|
|
854 |
public Iterator<Node> iterator() {
|
|
855 |
return new GraphNodeIterator(Graph.this, index);
|
|
856 |
}
|
|
857 |
};
|
|
858 |
}
|
|
859 |
|
|
860 |
/**
|
|
861 |
* Returns an {@link Iterable} providing all the live nodes.
|
|
862 |
*
|
|
863 |
* @return an {@link Iterable} providing all the live nodes.
|
|
864 |
*/
|
|
865 |
public NodeIterable<Node> getNodes() {
|
|
866 |
return new NodeIterable<Node>() {
|
|
867 |
|
|
868 |
@Override
|
|
869 |
public Iterator<Node> iterator() {
|
|
870 |
return new GraphNodeIterator(Graph.this);
|
|
871 |
}
|
|
872 |
|
|
873 |
@Override
|
|
874 |
public int count() {
|
|
875 |
return getNodeCount();
|
|
876 |
}
|
|
877 |
};
|
|
878 |
}
|
|
879 |
|
|
880 |
// Fully qualified annotation name is required to satisfy javac
|
46393
|
881 |
@org.graalvm.compiler.nodeinfo.NodeInfo(cycles = CYCLES_IGNORED, size = SIZE_IGNORED)
|
43972
|
882 |
static final class PlaceHolderNode extends Node {
|
|
883 |
|
|
884 |
public static final NodeClass<PlaceHolderNode> TYPE = NodeClass.create(PlaceHolderNode.class);
|
|
885 |
|
|
886 |
protected PlaceHolderNode() {
|
|
887 |
super(TYPE);
|
|
888 |
}
|
|
889 |
|
|
890 |
}
|
|
891 |
|
46640
|
892 |
private static final CounterKey GraphCompressions = DebugContext.counter("GraphCompressions");
|
43972
|
893 |
|
|
894 |
/**
|
46344
|
895 |
* If the {@linkplain Options#GraphCompressionThreshold compression threshold} is met, the list
|
|
896 |
* of nodes is compressed such that all non-null entries precede all null entries while
|
|
897 |
* preserving the ordering between the nodes within the list.
|
43972
|
898 |
*/
|
|
899 |
public boolean maybeCompress() {
|
46640
|
900 |
if (debug.isDumpEnabledForMethod() || debug.isLogEnabledForMethod()) {
|
43972
|
901 |
return false;
|
|
902 |
}
|
|
903 |
int liveNodeCount = getNodeCount();
|
|
904 |
int liveNodePercent = liveNodeCount * 100 / nodesSize;
|
46344
|
905 |
int compressionThreshold = Options.GraphCompressionThreshold.getValue(options);
|
|
906 |
if (compressionThreshold == 0 || liveNodePercent >= compressionThreshold) {
|
43972
|
907 |
return false;
|
|
908 |
}
|
46640
|
909 |
GraphCompressions.increment(debug);
|
43972
|
910 |
int nextId = 0;
|
|
911 |
for (int i = 0; nextId < liveNodeCount; i++) {
|
|
912 |
Node n = nodes[i];
|
|
913 |
if (n != null) {
|
|
914 |
assert n.id == i;
|
|
915 |
if (i != nextId) {
|
|
916 |
assert n.id > nextId;
|
|
917 |
n.id = nextId;
|
|
918 |
nodes[nextId] = n;
|
|
919 |
nodes[i] = null;
|
|
920 |
}
|
|
921 |
nextId++;
|
|
922 |
}
|
|
923 |
}
|
|
924 |
if (isModificationCountsEnabled()) {
|
|
925 |
// This will cause any current iteration to fail with an assertion
|
|
926 |
Arrays.fill(nodeModCounts, 0);
|
|
927 |
Arrays.fill(nodeUsageModCounts, 0);
|
|
928 |
}
|
|
929 |
nodesSize = nextId;
|
|
930 |
compressions++;
|
|
931 |
nodesDeletedBeforeLastCompression += nodesDeletedSinceLastCompression;
|
|
932 |
nodesDeletedSinceLastCompression = 0;
|
|
933 |
return true;
|
|
934 |
}
|
|
935 |
|
|
936 |
/**
|
|
937 |
* Returns an {@link Iterable} providing all the live nodes whose type is compatible with
|
|
938 |
* {@code type}.
|
|
939 |
*
|
|
940 |
* @param nodeClass the type of node to return
|
|
941 |
* @return an {@link Iterable} providing all the matching nodes
|
|
942 |
*/
|
|
943 |
public <T extends Node & IterableNodeType> NodeIterable<T> getNodes(final NodeClass<T> nodeClass) {
|
|
944 |
return new NodeIterable<T>() {
|
|
945 |
|
|
946 |
@Override
|
|
947 |
public Iterator<T> iterator() {
|
|
948 |
return new TypedGraphNodeIterator<>(nodeClass, Graph.this);
|
|
949 |
}
|
|
950 |
};
|
|
951 |
}
|
|
952 |
|
|
953 |
/**
|
|
954 |
* Returns whether the graph contains at least one node of the given type.
|
|
955 |
*
|
|
956 |
* @param type the type of node that is checked for occurrence
|
|
957 |
* @return whether there is at least one such node
|
|
958 |
*/
|
|
959 |
public <T extends Node & IterableNodeType> boolean hasNode(final NodeClass<T> type) {
|
|
960 |
return getNodes(type).iterator().hasNext();
|
|
961 |
}
|
|
962 |
|
|
963 |
/**
|
|
964 |
* @param iterableId
|
|
965 |
* @return the first live Node with a matching iterableId
|
|
966 |
*/
|
|
967 |
Node getIterableNodeStart(int iterableId) {
|
|
968 |
if (iterableNodesFirst.size() <= iterableId) {
|
|
969 |
return null;
|
|
970 |
}
|
|
971 |
Node start = iterableNodesFirst.get(iterableId);
|
|
972 |
if (start == null || !start.isDeleted()) {
|
|
973 |
return start;
|
|
974 |
}
|
|
975 |
return findFirstLiveIterable(iterableId, start);
|
|
976 |
}
|
|
977 |
|
|
978 |
private Node findFirstLiveIterable(int iterableId, Node node) {
|
|
979 |
Node start = node;
|
|
980 |
while (start != null && start.isDeleted()) {
|
|
981 |
start = start.typeCacheNext;
|
|
982 |
}
|
|
983 |
/*
|
|
984 |
* Multiple threads iterating nodes can update this cache simultaneously. This is a benign
|
|
985 |
* race, since all threads update it to the same value.
|
|
986 |
*/
|
|
987 |
iterableNodesFirst.set(iterableId, start);
|
|
988 |
if (start == null) {
|
|
989 |
iterableNodesLast.set(iterableId, start);
|
|
990 |
}
|
|
991 |
return start;
|
|
992 |
}
|
|
993 |
|
|
994 |
/**
|
|
995 |
* @param node
|
|
996 |
* @return return the first live Node with a matching iterableId starting from {@code node}
|
|
997 |
*/
|
|
998 |
Node getIterableNodeNext(Node node) {
|
|
999 |
if (node == null) {
|
|
1000 |
return null;
|
|
1001 |
}
|
|
1002 |
Node n = node;
|
|
1003 |
if (n == null || !n.isDeleted()) {
|
|
1004 |
return n;
|
|
1005 |
}
|
|
1006 |
|
|
1007 |
return findNextLiveiterable(node);
|
|
1008 |
}
|
|
1009 |
|
|
1010 |
private Node findNextLiveiterable(Node start) {
|
|
1011 |
Node n = start;
|
|
1012 |
while (n != null && n.isDeleted()) {
|
|
1013 |
n = n.typeCacheNext;
|
|
1014 |
}
|
|
1015 |
if (n == null) {
|
|
1016 |
// Only dead nodes after this one
|
|
1017 |
start.typeCacheNext = null;
|
|
1018 |
int nodeClassId = start.getNodeClass().iterableId();
|
|
1019 |
assert nodeClassId != Node.NOT_ITERABLE;
|
|
1020 |
iterableNodesLast.set(nodeClassId, start);
|
|
1021 |
} else {
|
|
1022 |
// Everything in between is dead
|
|
1023 |
start.typeCacheNext = n;
|
|
1024 |
}
|
|
1025 |
return n;
|
|
1026 |
}
|
|
1027 |
|
|
1028 |
public NodeBitMap createNodeBitMap() {
|
|
1029 |
return new NodeBitMap(this);
|
|
1030 |
}
|
|
1031 |
|
|
1032 |
public <T> NodeMap<T> createNodeMap() {
|
|
1033 |
return new NodeMap<>(this);
|
|
1034 |
}
|
|
1035 |
|
|
1036 |
public NodeFlood createNodeFlood() {
|
|
1037 |
return new NodeFlood(this);
|
|
1038 |
}
|
|
1039 |
|
|
1040 |
public NodeWorkList createNodeWorkList() {
|
|
1041 |
return new NodeWorkList.SingletonNodeWorkList(this);
|
|
1042 |
}
|
|
1043 |
|
|
1044 |
public NodeWorkList createIterativeNodeWorkList(boolean fill, int iterationLimitPerNode) {
|
|
1045 |
return new NodeWorkList.IterativeNodeWorkList(this, fill, iterationLimitPerNode);
|
|
1046 |
}
|
|
1047 |
|
|
1048 |
void register(Node node) {
|
|
1049 |
assert !isFrozen();
|
|
1050 |
assert node.id() == Node.INITIAL_ID;
|
|
1051 |
if (nodes.length == nodesSize) {
|
46344
|
1052 |
grow();
|
43972
|
1053 |
}
|
46344
|
1054 |
int id = nodesSize++;
|
43972
|
1055 |
nodes[id] = node;
|
46344
|
1056 |
node.id = id;
|
49451
|
1057 |
if (currentNodeSourcePosition != null && trackNodeSourcePosition()) {
|
43972
|
1058 |
node.setNodeSourcePosition(currentNodeSourcePosition);
|
|
1059 |
}
|
49873
|
1060 |
if (TrackNodeInsertion.getValue(getOptions())) {
|
|
1061 |
node.setInsertionPosition(new NodeInsertionStackTrace());
|
|
1062 |
}
|
43972
|
1063 |
|
|
1064 |
updateNodeCaches(node);
|
|
1065 |
|
|
1066 |
if (nodeEventListener != null) {
|
47798
|
1067 |
nodeEventListener.event(NodeEvent.NODE_ADDED, node);
|
43972
|
1068 |
}
|
46344
|
1069 |
afterRegister(node);
|
|
1070 |
}
|
|
1071 |
|
|
1072 |
private void grow() {
|
|
1073 |
Node[] newNodes = new Node[(nodesSize * 2) + 1];
|
|
1074 |
System.arraycopy(nodes, 0, newNodes, 0, nodesSize);
|
|
1075 |
nodes = newNodes;
|
|
1076 |
}
|
|
1077 |
|
|
1078 |
@SuppressWarnings("unused")
|
|
1079 |
protected void afterRegister(Node node) {
|
|
1080 |
|
43972
|
1081 |
}
|
|
1082 |
|
|
1083 |
@SuppressWarnings("unused")
|
|
1084 |
private void postDeserialization() {
|
|
1085 |
recomputeIterableNodeLists();
|
|
1086 |
}
|
|
1087 |
|
|
1088 |
/**
|
|
1089 |
* Rebuilds the lists used to support {@link #getNodes(NodeClass)}. This is useful for
|
|
1090 |
* serialization where the underlying {@linkplain NodeClass#iterableId() iterable ids} may have
|
|
1091 |
* changed.
|
|
1092 |
*/
|
|
1093 |
private void recomputeIterableNodeLists() {
|
|
1094 |
iterableNodesFirst.clear();
|
|
1095 |
iterableNodesLast.clear();
|
|
1096 |
for (Node node : nodes) {
|
|
1097 |
if (node != null && node.isAlive()) {
|
|
1098 |
updateNodeCaches(node);
|
|
1099 |
}
|
|
1100 |
}
|
|
1101 |
}
|
|
1102 |
|
|
1103 |
private void updateNodeCaches(Node node) {
|
|
1104 |
int nodeClassId = node.getNodeClass().iterableId();
|
|
1105 |
if (nodeClassId != Node.NOT_ITERABLE) {
|
|
1106 |
while (iterableNodesFirst.size() <= nodeClassId) {
|
|
1107 |
iterableNodesFirst.add(null);
|
|
1108 |
iterableNodesLast.add(null);
|
|
1109 |
}
|
|
1110 |
Node prev = iterableNodesLast.get(nodeClassId);
|
|
1111 |
if (prev != null) {
|
|
1112 |
prev.typeCacheNext = node;
|
|
1113 |
} else {
|
|
1114 |
iterableNodesFirst.set(nodeClassId, node);
|
|
1115 |
}
|
|
1116 |
iterableNodesLast.set(nodeClassId, node);
|
|
1117 |
}
|
|
1118 |
}
|
|
1119 |
|
|
1120 |
void unregister(Node node) {
|
|
1121 |
assert !isFrozen();
|
46344
|
1122 |
assert !node.isDeleted() : node;
|
|
1123 |
if (node.getNodeClass().isLeafNode() && node.getNodeClass().valueNumberable()) {
|
|
1124 |
removeNodeFromCache(node);
|
|
1125 |
}
|
43972
|
1126 |
nodes[node.id] = null;
|
|
1127 |
nodesDeletedSinceLastCompression++;
|
|
1128 |
|
47798
|
1129 |
if (nodeEventListener != null) {
|
55509
|
1130 |
nodeEventListener.event(NodeEvent.NODE_REMOVED, node);
|
47798
|
1131 |
}
|
|
1132 |
|
43972
|
1133 |
// nodes aren't removed from the type cache here - they will be removed during iteration
|
|
1134 |
}
|
|
1135 |
|
|
1136 |
public boolean verify() {
|
46344
|
1137 |
if (Options.VerifyGraalGraphs.getValue(options)) {
|
43972
|
1138 |
for (Node node : getNodes()) {
|
|
1139 |
try {
|
|
1140 |
try {
|
|
1141 |
assert node.verify();
|
|
1142 |
} catch (AssertionError t) {
|
|
1143 |
throw new GraalError(t);
|
|
1144 |
} catch (RuntimeException t) {
|
|
1145 |
throw new GraalError(t);
|
|
1146 |
}
|
|
1147 |
} catch (GraalError e) {
|
|
1148 |
throw GraalGraphError.transformAndAddContext(e, node).addContext(this);
|
|
1149 |
}
|
|
1150 |
}
|
|
1151 |
}
|
|
1152 |
return true;
|
|
1153 |
}
|
|
1154 |
|
50330
|
1155 |
public boolean verifySourcePositions(boolean performConsistencyCheck) {
|
49873
|
1156 |
if (trackNodeSourcePosition()) {
|
|
1157 |
ResolvedJavaMethod root = null;
|
|
1158 |
for (Node node : getNodes()) {
|
|
1159 |
NodeSourcePosition pos = node.getNodeSourcePosition();
|
|
1160 |
if (pos != null) {
|
|
1161 |
if (root == null) {
|
|
1162 |
root = pos.getRootMethod();
|
|
1163 |
} else {
|
|
1164 |
assert pos.verifyRootMethod(root) : node;
|
|
1165 |
}
|
|
1166 |
}
|
50330
|
1167 |
|
|
1168 |
// More strict node-type-specific check
|
|
1169 |
if (performConsistencyCheck) {
|
51436
|
1170 |
// Disabled due to GR-10445.
|
|
1171 |
// node.verifySourcePosition();
|
50330
|
1172 |
}
|
49873
|
1173 |
}
|
|
1174 |
}
|
|
1175 |
return true;
|
|
1176 |
}
|
|
1177 |
|
43972
|
1178 |
public Node getNode(int id) {
|
|
1179 |
return nodes[id];
|
|
1180 |
}
|
|
1181 |
|
|
1182 |
/**
|
|
1183 |
* Returns the number of node ids generated so far.
|
|
1184 |
*
|
|
1185 |
* @return the number of node ids generated so far
|
|
1186 |
*/
|
|
1187 |
int nodeIdCount() {
|
|
1188 |
return nodesSize;
|
|
1189 |
}
|
|
1190 |
|
|
1191 |
/**
|
46640
|
1192 |
* Adds duplicates of the nodes in {@code newNodes} to this graph. This will recreate any edges
|
43972
|
1193 |
* between the duplicate nodes. The {@code replacement} map can be used to replace a node from
|
|
1194 |
* the source graph by a given node (which must already be in this graph). Edges between
|
|
1195 |
* duplicate and replacement nodes will also be recreated so care should be taken regarding the
|
|
1196 |
* matching of node types in the replacement map.
|
|
1197 |
*
|
|
1198 |
* @param newNodes the nodes to be duplicated
|
|
1199 |
* @param replacementsMap the replacement map (can be null if no replacement is to be performed)
|
|
1200 |
* @return a map which associates the original nodes from {@code nodes} to their duplicates
|
|
1201 |
*/
|
46344
|
1202 |
public UnmodifiableEconomicMap<Node, Node> addDuplicates(Iterable<? extends Node> newNodes, final Graph oldGraph, int estimatedNodeCount, EconomicMap<Node, Node> replacementsMap) {
|
43972
|
1203 |
DuplicationReplacement replacements;
|
|
1204 |
if (replacementsMap == null) {
|
|
1205 |
replacements = null;
|
|
1206 |
} else {
|
|
1207 |
replacements = new MapReplacement(replacementsMap);
|
|
1208 |
}
|
|
1209 |
return addDuplicates(newNodes, oldGraph, estimatedNodeCount, replacements);
|
|
1210 |
}
|
|
1211 |
|
|
1212 |
public interface DuplicationReplacement {
|
|
1213 |
|
|
1214 |
Node replacement(Node original);
|
|
1215 |
}
|
|
1216 |
|
|
1217 |
private static final class MapReplacement implements DuplicationReplacement {
|
|
1218 |
|
46344
|
1219 |
private final EconomicMap<Node, Node> map;
|
43972
|
1220 |
|
46344
|
1221 |
MapReplacement(EconomicMap<Node, Node> map) {
|
43972
|
1222 |
this.map = map;
|
|
1223 |
}
|
|
1224 |
|
|
1225 |
@Override
|
|
1226 |
public Node replacement(Node original) {
|
|
1227 |
Node replacement = map.get(original);
|
|
1228 |
return replacement != null ? replacement : original;
|
|
1229 |
}
|
|
1230 |
|
|
1231 |
}
|
|
1232 |
|
46640
|
1233 |
private static final TimerKey DuplicateGraph = DebugContext.timer("DuplicateGraph");
|
43972
|
1234 |
|
|
1235 |
@SuppressWarnings({"all", "try"})
|
46344
|
1236 |
public EconomicMap<Node, Node> addDuplicates(Iterable<? extends Node> newNodes, final Graph oldGraph, int estimatedNodeCount, DuplicationReplacement replacements) {
|
46640
|
1237 |
try (DebugCloseable s = DuplicateGraph.start(getDebug())) {
|
43972
|
1238 |
return NodeClass.addGraphDuplicate(this, oldGraph, estimatedNodeCount, newNodes, replacements);
|
|
1239 |
}
|
|
1240 |
}
|
|
1241 |
|
|
1242 |
public boolean isFrozen() {
|
46344
|
1243 |
return freezeState != FreezeState.Unfrozen;
|
43972
|
1244 |
}
|
|
1245 |
|
|
1246 |
public void freeze() {
|
46344
|
1247 |
this.freezeState = FreezeState.DeepFreeze;
|
|
1248 |
}
|
|
1249 |
|
|
1250 |
public void temporaryFreeze() {
|
|
1251 |
if (this.freezeState == FreezeState.DeepFreeze) {
|
|
1252 |
throw new GraalError("Graph was permanetly frozen.");
|
|
1253 |
}
|
|
1254 |
this.freezeState = FreezeState.TemporaryFreeze;
|
|
1255 |
}
|
|
1256 |
|
|
1257 |
public void unfreeze() {
|
|
1258 |
if (this.freezeState == FreezeState.DeepFreeze) {
|
|
1259 |
throw new GraalError("Graph was permanetly frozen.");
|
|
1260 |
}
|
|
1261 |
this.freezeState = FreezeState.Unfrozen;
|
43972
|
1262 |
}
|
|
1263 |
}
|