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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.nodes;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Iterator;
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import java.util.List;
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import java.util.SortedSet;
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import java.util.TreeSet;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.function.Consumer;
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import java.util.stream.Collectors;
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import jdk.internal.vm.compiler.collections.EconomicMap;
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import jdk.internal.vm.compiler.collections.EconomicSet;
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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.api.replacements.MethodSubstitution;
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import org.graalvm.compiler.api.replacements.Snippet;
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import org.graalvm.compiler.core.common.CancellationBailoutException;
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import org.graalvm.compiler.core.common.CompilationIdentifier;
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import org.graalvm.compiler.core.common.GraalOptions;
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import org.graalvm.compiler.core.common.cfg.BlockMap;
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import org.graalvm.compiler.core.common.type.Stamp;
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import org.graalvm.compiler.debug.DebugContext;
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import org.graalvm.compiler.debug.JavaMethodContext;
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import org.graalvm.compiler.debug.TTY;
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import org.graalvm.compiler.graph.Graph;
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import org.graalvm.compiler.graph.Node;
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import org.graalvm.compiler.graph.NodeMap;
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import org.graalvm.compiler.graph.NodeSourcePosition;
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import org.graalvm.compiler.nodes.calc.FloatingNode;
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import org.graalvm.compiler.nodes.cfg.Block;
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import org.graalvm.compiler.nodes.cfg.ControlFlowGraph;
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import org.graalvm.compiler.nodes.java.MethodCallTargetNode;
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import org.graalvm.compiler.nodes.spi.VirtualizableAllocation;
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import org.graalvm.compiler.nodes.util.GraphUtil;
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import org.graalvm.compiler.options.OptionValues;
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import jdk.vm.ci.code.BytecodeFrame;
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import jdk.vm.ci.meta.Assumptions;
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import jdk.vm.ci.meta.Assumptions.Assumption;
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import jdk.vm.ci.meta.DefaultProfilingInfo;
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import jdk.vm.ci.meta.JavaMethod;
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import jdk.vm.ci.meta.ProfilingInfo;
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import jdk.vm.ci.meta.ResolvedJavaField;
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import jdk.vm.ci.meta.ResolvedJavaMethod;
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import jdk.vm.ci.meta.SpeculationLog;
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import jdk.vm.ci.meta.TriState;
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import jdk.vm.ci.runtime.JVMCICompiler;
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/**
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* A graph that contains at least one distinguished node : the {@link #start() start} node. This
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* node is the start of the control flow of the graph.
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*/
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public final class StructuredGraph extends Graph implements JavaMethodContext {
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/**
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* The different stages of the compilation of a {@link Graph} regarding the status of
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* {@link GuardNode guards}, {@link DeoptimizingNode deoptimizations} and {@link FrameState
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* framestates}. The stage of a graph progresses monotonously.
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*
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*/
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public enum GuardsStage {
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/**
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* During this stage, there can be {@link FloatingNode floating} {@link DeoptimizingNode}
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* such as {@link GuardNode GuardNodes}. New {@link DeoptimizingNode DeoptimizingNodes} can
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* be introduced without constraints. {@link FrameState} nodes are associated with
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* {@link StateSplit} nodes.
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*/
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FLOATING_GUARDS,
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/**
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* During this stage, all {@link DeoptimizingNode DeoptimizingNodes} must be
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* {@link FixedNode fixed} but new {@link DeoptimizingNode DeoptimizingNodes} can still be
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* introduced. {@link FrameState} nodes are still associated with {@link StateSplit} nodes.
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*/
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FIXED_DEOPTS,
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/**
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* During this stage, all {@link DeoptimizingNode DeoptimizingNodes} must be
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* {@link FixedNode fixed}. New {@link DeoptimizingNode DeoptimizingNodes} can not be
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* introduced any more. {@link FrameState} nodes are now associated with
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* {@link DeoptimizingNode} nodes.
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*/
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AFTER_FSA;
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public boolean allowsFloatingGuards() {
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return this == FLOATING_GUARDS;
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}
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public boolean allowsGuardInsertion() {
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return this.ordinal() <= FIXED_DEOPTS.ordinal();
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}
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public boolean areFrameStatesAtDeopts() {
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return this == AFTER_FSA;
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}
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public boolean areFrameStatesAtSideEffects() {
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return !this.areFrameStatesAtDeopts();
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}
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public boolean areDeoptsFixed() {
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return this.ordinal() >= FIXED_DEOPTS.ordinal();
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}
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}
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/**
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* Constants denoting whether or not {@link Assumption}s can be made while processing a graph.
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*/
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public enum AllowAssumptions {
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YES,
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NO;
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public static AllowAssumptions ifTrue(boolean flag) {
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return flag ? YES : NO;
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}
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public static AllowAssumptions ifNonNull(Assumptions assumptions) {
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return assumptions != null ? YES : NO;
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}
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}
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public static class ScheduleResult {
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private final ControlFlowGraph cfg;
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private final NodeMap<Block> nodeToBlockMap;
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private final BlockMap<List<Node>> blockToNodesMap;
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public ScheduleResult(ControlFlowGraph cfg, NodeMap<Block> nodeToBlockMap, BlockMap<List<Node>> blockToNodesMap) {
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this.cfg = cfg;
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this.nodeToBlockMap = nodeToBlockMap;
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this.blockToNodesMap = blockToNodesMap;
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}
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public ControlFlowGraph getCFG() {
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return cfg;
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}
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public NodeMap<Block> getNodeToBlockMap() {
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return nodeToBlockMap;
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}
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public BlockMap<List<Node>> getBlockToNodesMap() {
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return blockToNodesMap;
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}
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public List<Node> nodesFor(Block block) {
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return blockToNodesMap.get(block);
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}
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}
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/**
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* Object used to create a {@link StructuredGraph}.
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*/
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public static class Builder {
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private String name;
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private final Assumptions assumptions;
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private SpeculationLog speculationLog;
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private ResolvedJavaMethod rootMethod;
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private CompilationIdentifier compilationId = CompilationIdentifier.INVALID_COMPILATION_ID;
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private int entryBCI = JVMCICompiler.INVOCATION_ENTRY_BCI;
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private boolean useProfilingInfo = true;
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private boolean recordInlinedMethods = true;
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private boolean trackNodeSourcePosition;
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private final OptionValues options;
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private Cancellable cancellable = null;
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private final DebugContext debug;
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private NodeSourcePosition callerContext;
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private boolean isSubstitution;
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/**
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* Creates a builder for a graph.
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*/
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public Builder(OptionValues options, DebugContext debug, AllowAssumptions allowAssumptions) {
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this.options = options;
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this.debug = debug;
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this.assumptions = allowAssumptions == AllowAssumptions.YES ? new Assumptions() : null;
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this.trackNodeSourcePosition = Graph.trackNodeSourcePositionDefault(options, debug);
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}
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/**
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* Creates a builder for a graph that does not support {@link Assumptions}.
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*/
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public Builder(OptionValues options, DebugContext debug) {
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this.options = options;
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this.debug = debug;
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this.assumptions = null;
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this.trackNodeSourcePosition = Graph.trackNodeSourcePositionDefault(options, debug);
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}
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public String getName() {
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return name;
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}
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public Builder name(String s) {
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this.name = s;
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return this;
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}
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/**
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* @see StructuredGraph#isSubstitution
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*/
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public Builder setIsSubstitution(boolean flag) {
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this.isSubstitution = flag;
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return this;
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}
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public ResolvedJavaMethod getMethod() {
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return rootMethod;
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}
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public Builder method(ResolvedJavaMethod method) {
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this.rootMethod = method;
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return this;
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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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public SpeculationLog getSpeculationLog() {
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return speculationLog;
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}
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public Builder speculationLog(SpeculationLog log) {
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this.speculationLog = log;
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return this;
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}
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public CompilationIdentifier getCompilationId() {
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return compilationId;
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}
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public Builder compilationId(CompilationIdentifier id) {
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this.compilationId = id;
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return this;
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}
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public Cancellable getCancellable() {
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return cancellable;
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}
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public Builder cancellable(Cancellable cancel) {
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this.cancellable = cancel;
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return this;
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}
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public int getEntryBCI() {
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return entryBCI;
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}
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public Builder entryBCI(int bci) {
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this.entryBCI = bci;
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return this;
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}
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public boolean getUseProfilingInfo() {
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return useProfilingInfo;
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}
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public Builder useProfilingInfo(boolean flag) {
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this.useProfilingInfo = flag;
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return this;
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}
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public boolean getRecordInlinedMethods() {
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return recordInlinedMethods;
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}
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public Builder recordInlinedMethods(boolean flag) {
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this.recordInlinedMethods = flag;
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return this;
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}
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public Builder trackNodeSourcePosition(boolean flag) {
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if (flag) {
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this.trackNodeSourcePosition = true;
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}
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return this;
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}
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public Builder callerContext(NodeSourcePosition context) {
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this.callerContext = context;
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return this;
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}
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public StructuredGraph build() {
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List<ResolvedJavaMethod> inlinedMethods = recordInlinedMethods ? new ArrayList<>() : null;
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// @formatter:off
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return new StructuredGraph(name,
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rootMethod,
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entryBCI,
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assumptions,
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speculationLog,
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useProfilingInfo,
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isSubstitution,
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inlinedMethods,
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trackNodeSourcePosition,
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compilationId,
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options,
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debug,
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cancellable,
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callerContext);
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// @formatter:on
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}
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}
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public static final long INVALID_GRAPH_ID = -1;
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private static final AtomicLong uniqueGraphIds = new AtomicLong();
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private StartNode start;
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private ResolvedJavaMethod rootMethod;
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private final long graphId;
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private final CompilationIdentifier compilationId;
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private final int entryBCI;
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private GuardsStage guardsStage = GuardsStage.FLOATING_GUARDS;
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private boolean isAfterFloatingReadPhase = false;
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private boolean isAfterFixedReadPhase = false;
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private boolean hasValueProxies = true;
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private boolean isAfterExpandLogic = false;
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private final boolean useProfilingInfo;
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private final Cancellable cancellable;
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private final boolean isSubstitution;
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/**
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* The assumptions made while constructing and transforming this graph.
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*/
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private final Assumptions assumptions;
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private SpeculationLog speculationLog;
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private ScheduleResult lastSchedule;
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private final InliningLog inliningLog;
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/**
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* Call stack (context) leading to construction of this graph.
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*/
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private final NodeSourcePosition callerContext;
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/**
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* Records the methods that were used while constructing this graph, one entry for each time a
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* specific method is used. This will be {@code null} if recording of inlined methods is
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* disabled for the graph.
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*/
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private final List<ResolvedJavaMethod> methods;
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/**
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* Records the fields that were accessed while constructing this graph.
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*/
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private EconomicSet<ResolvedJavaField> fields = null;
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private enum UnsafeAccessState {
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NO_ACCESS,
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HAS_ACCESS,
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DISABLED
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}
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private UnsafeAccessState hasUnsafeAccess = UnsafeAccessState.NO_ACCESS;
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public static final boolean USE_PROFILING_INFO = true;
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public static final boolean NO_PROFILING_INFO = false;
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private StructuredGraph(String name,
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ResolvedJavaMethod method,
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int entryBCI,
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Assumptions assumptions,
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SpeculationLog speculationLog,
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boolean useProfilingInfo,
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boolean isSubstitution,
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List<ResolvedJavaMethod> methods,
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boolean trackNodeSourcePosition,
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CompilationIdentifier compilationId,
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OptionValues options,
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DebugContext debug,
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Cancellable cancellable,
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NodeSourcePosition context) {
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super(name, options, debug, trackNodeSourcePosition);
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this.setStart(add(new StartNode()));
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this.rootMethod = method;
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this.graphId = uniqueGraphIds.incrementAndGet();
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this.compilationId = compilationId;
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this.entryBCI = entryBCI;
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this.assumptions = assumptions;
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this.methods = methods;
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this.speculationLog = speculationLog;
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this.useProfilingInfo = useProfilingInfo;
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|
410 |
this.isSubstitution = isSubstitution;
|
|
411 |
assert checkIsSubstitutionInvariants(method, isSubstitution);
|
46344
|
412 |
this.cancellable = cancellable;
|
49873
|
413 |
this.inliningLog = new InliningLog(rootMethod, GraalOptions.TraceInlining.getValue(options));
|
48861
|
414 |
this.callerContext = context;
|
43972
|
415 |
}
|
|
416 |
|
51736
|
417 |
private static boolean checkIsSubstitutionInvariants(ResolvedJavaMethod method, boolean isSubstitution) {
|
|
418 |
if (method != null) {
|
|
419 |
if (method.getAnnotation(Snippet.class) != null || method.getAnnotation(MethodSubstitution.class) != null) {
|
|
420 |
assert isSubstitution : "Graph for method " + method.format("%H.%n(%p)") +
|
|
421 |
" annotated by " + Snippet.class.getName() + " or " +
|
|
422 |
MethodSubstitution.class.getName() +
|
|
423 |
" must have its `isSubstitution` field set to true";
|
|
424 |
}
|
|
425 |
}
|
|
426 |
return true;
|
|
427 |
}
|
|
428 |
|
43972
|
429 |
public void setLastSchedule(ScheduleResult result) {
|
|
430 |
lastSchedule = result;
|
|
431 |
}
|
|
432 |
|
|
433 |
public ScheduleResult getLastSchedule() {
|
|
434 |
return lastSchedule;
|
|
435 |
}
|
|
436 |
|
|
437 |
public void clearLastSchedule() {
|
|
438 |
setLastSchedule(null);
|
|
439 |
}
|
|
440 |
|
|
441 |
@Override
|
|
442 |
public boolean maybeCompress() {
|
|
443 |
if (super.maybeCompress()) {
|
|
444 |
/*
|
|
445 |
* The schedule contains a NodeMap which is unusable after compression.
|
|
446 |
*/
|
|
447 |
clearLastSchedule();
|
|
448 |
return true;
|
|
449 |
}
|
|
450 |
return false;
|
|
451 |
}
|
|
452 |
|
|
453 |
public Stamp getReturnStamp() {
|
|
454 |
Stamp returnStamp = null;
|
|
455 |
for (ReturnNode returnNode : getNodes(ReturnNode.TYPE)) {
|
|
456 |
ValueNode result = returnNode.result();
|
|
457 |
if (result != null) {
|
|
458 |
if (returnStamp == null) {
|
48190
|
459 |
returnStamp = result.stamp(NodeView.DEFAULT);
|
43972
|
460 |
} else {
|
48190
|
461 |
returnStamp = returnStamp.meet(result.stamp(NodeView.DEFAULT));
|
43972
|
462 |
}
|
|
463 |
}
|
|
464 |
}
|
|
465 |
return returnStamp;
|
|
466 |
}
|
|
467 |
|
|
468 |
@Override
|
|
469 |
public String toString() {
|
|
470 |
StringBuilder buf = new StringBuilder(getClass().getSimpleName() + ":" + graphId);
|
|
471 |
String sep = "{";
|
|
472 |
if (name != null) {
|
|
473 |
buf.append(sep);
|
|
474 |
buf.append(name);
|
|
475 |
sep = ", ";
|
|
476 |
}
|
|
477 |
if (method() != null) {
|
|
478 |
buf.append(sep);
|
|
479 |
buf.append(method());
|
|
480 |
sep = ", ";
|
|
481 |
}
|
|
482 |
|
|
483 |
if (!sep.equals("{")) {
|
|
484 |
buf.append("}");
|
|
485 |
}
|
|
486 |
return buf.toString();
|
|
487 |
}
|
|
488 |
|
|
489 |
public StartNode start() {
|
|
490 |
return start;
|
|
491 |
}
|
|
492 |
|
|
493 |
/**
|
|
494 |
* Gets the root method from which this graph was built.
|
|
495 |
*
|
|
496 |
* @return null if this method was not built from a method or the method is not available
|
|
497 |
*/
|
|
498 |
public ResolvedJavaMethod method() {
|
|
499 |
return rootMethod;
|
|
500 |
}
|
|
501 |
|
|
502 |
public int getEntryBCI() {
|
|
503 |
return entryBCI;
|
|
504 |
}
|
|
505 |
|
46344
|
506 |
public Cancellable getCancellable() {
|
|
507 |
return cancellable;
|
|
508 |
}
|
|
509 |
|
|
510 |
public void checkCancellation() {
|
|
511 |
if (cancellable != null && cancellable.isCancelled()) {
|
|
512 |
CancellationBailoutException.cancelCompilation();
|
|
513 |
}
|
|
514 |
}
|
|
515 |
|
43972
|
516 |
public boolean isOSR() {
|
|
517 |
return entryBCI != JVMCICompiler.INVOCATION_ENTRY_BCI;
|
|
518 |
}
|
|
519 |
|
|
520 |
public long graphId() {
|
|
521 |
return graphId;
|
|
522 |
}
|
|
523 |
|
|
524 |
/**
|
|
525 |
* @see CompilationIdentifier
|
|
526 |
*/
|
|
527 |
public CompilationIdentifier compilationId() {
|
|
528 |
return compilationId;
|
|
529 |
}
|
|
530 |
|
|
531 |
public void setStart(StartNode start) {
|
|
532 |
this.start = start;
|
|
533 |
}
|
|
534 |
|
48861
|
535 |
public InliningLog getInliningLog() {
|
|
536 |
return inliningLog;
|
|
537 |
}
|
|
538 |
|
49451
|
539 |
public void logInliningTree() {
|
|
540 |
if (GraalOptions.TraceInlining.getValue(getOptions())) {
|
49873
|
541 |
String formattedTree = getInliningLog().formatAsTree(true);
|
|
542 |
if (formattedTree != null) {
|
|
543 |
TTY.println(formattedTree);
|
|
544 |
}
|
49451
|
545 |
}
|
|
546 |
}
|
|
547 |
|
43972
|
548 |
/**
|
|
549 |
* Creates a copy of this graph.
|
|
550 |
*
|
|
551 |
* @param newName the name of the copy, used for debugging purposes (can be null)
|
|
552 |
* @param duplicationMapCallback consumer of the duplication map created during the copying
|
46640
|
553 |
* @param debugForCopy the debug context for the graph copy. This must not be the debug for this
|
|
554 |
* graph if this graph can be accessed from multiple threads (e.g., it's in a cache
|
|
555 |
* accessed by multiple threads).
|
43972
|
556 |
*/
|
|
557 |
@Override
|
46640
|
558 |
protected Graph copy(String newName, Consumer<UnmodifiableEconomicMap<Node, Node>> duplicationMapCallback, DebugContext debugForCopy) {
|
|
559 |
return copy(newName, duplicationMapCallback, compilationId, debugForCopy);
|
43972
|
560 |
}
|
|
561 |
|
49451
|
562 |
@SuppressWarnings("try")
|
46640
|
563 |
private StructuredGraph copy(String newName, Consumer<UnmodifiableEconomicMap<Node, Node>> duplicationMapCallback, CompilationIdentifier newCompilationId, DebugContext debugForCopy) {
|
46344
|
564 |
AllowAssumptions allowAssumptions = AllowAssumptions.ifNonNull(assumptions);
|
|
565 |
StructuredGraph copy = new StructuredGraph(newName,
|
|
566 |
method(),
|
|
567 |
entryBCI,
|
|
568 |
assumptions == null ? null : new Assumptions(),
|
|
569 |
speculationLog,
|
|
570 |
useProfilingInfo,
|
51736
|
571 |
isSubstitution,
|
50609
|
572 |
methods != null ? new ArrayList<>(methods) : null,
|
49451
|
573 |
trackNodeSourcePosition,
|
46344
|
574 |
newCompilationId,
|
48861
|
575 |
getOptions(), debugForCopy, null, callerContext);
|
43972
|
576 |
if (allowAssumptions == AllowAssumptions.YES && assumptions != null) {
|
|
577 |
copy.assumptions.record(assumptions);
|
|
578 |
}
|
|
579 |
copy.hasUnsafeAccess = hasUnsafeAccess;
|
|
580 |
copy.setGuardsStage(getGuardsStage());
|
|
581 |
copy.isAfterFloatingReadPhase = isAfterFloatingReadPhase;
|
|
582 |
copy.hasValueProxies = hasValueProxies;
|
46459
|
583 |
copy.isAfterExpandLogic = isAfterExpandLogic;
|
49873
|
584 |
copy.trackNodeSourcePosition = trackNodeSourcePosition;
|
50609
|
585 |
if (fields != null) {
|
|
586 |
copy.fields = createFieldSet(fields);
|
|
587 |
}
|
46344
|
588 |
EconomicMap<Node, Node> replacements = EconomicMap.create(Equivalence.IDENTITY);
|
43972
|
589 |
replacements.put(start, copy.start);
|
49451
|
590 |
UnmodifiableEconomicMap<Node, Node> duplicates;
|
|
591 |
try (InliningLog.UpdateScope scope = copy.getInliningLog().openDefaultUpdateScope()) {
|
|
592 |
duplicates = copy.addDuplicates(getNodes(), this, this.getNodeCount(), replacements);
|
|
593 |
if (scope != null) {
|
|
594 |
copy.getInliningLog().replaceLog(duplicates, this.getInliningLog());
|
|
595 |
}
|
|
596 |
}
|
43972
|
597 |
if (duplicationMapCallback != null) {
|
|
598 |
duplicationMapCallback.accept(duplicates);
|
|
599 |
}
|
|
600 |
return copy;
|
|
601 |
}
|
|
602 |
|
46640
|
603 |
/**
|
|
604 |
* @param debugForCopy the debug context for the graph copy. This must not be the debug for this
|
|
605 |
* graph if this graph can be accessed from multiple threads (e.g., it's in a cache
|
|
606 |
* accessed by multiple threads).
|
|
607 |
*/
|
|
608 |
public StructuredGraph copyWithIdentifier(CompilationIdentifier newCompilationId, DebugContext debugForCopy) {
|
|
609 |
return copy(name, null, newCompilationId, debugForCopy);
|
43972
|
610 |
}
|
|
611 |
|
|
612 |
public ParameterNode getParameter(int index) {
|
|
613 |
for (ParameterNode param : getNodes(ParameterNode.TYPE)) {
|
|
614 |
if (param.index() == index) {
|
|
615 |
return param;
|
|
616 |
}
|
|
617 |
}
|
|
618 |
return null;
|
|
619 |
}
|
|
620 |
|
|
621 |
public Iterable<Invoke> getInvokes() {
|
|
622 |
final Iterator<MethodCallTargetNode> callTargets = getNodes(MethodCallTargetNode.TYPE).iterator();
|
|
623 |
return new Iterable<Invoke>() {
|
|
624 |
|
|
625 |
private Invoke next;
|
|
626 |
|
|
627 |
@Override
|
|
628 |
public Iterator<Invoke> iterator() {
|
|
629 |
return new Iterator<Invoke>() {
|
|
630 |
|
|
631 |
@Override
|
|
632 |
public boolean hasNext() {
|
|
633 |
if (next == null) {
|
|
634 |
while (callTargets.hasNext()) {
|
|
635 |
Invoke i = callTargets.next().invoke();
|
|
636 |
if (i != null) {
|
|
637 |
next = i;
|
|
638 |
return true;
|
|
639 |
}
|
|
640 |
}
|
|
641 |
return false;
|
|
642 |
} else {
|
|
643 |
return true;
|
|
644 |
}
|
|
645 |
}
|
|
646 |
|
|
647 |
@Override
|
|
648 |
public Invoke next() {
|
|
649 |
try {
|
|
650 |
return next;
|
|
651 |
} finally {
|
|
652 |
next = null;
|
|
653 |
}
|
|
654 |
}
|
|
655 |
|
|
656 |
@Override
|
|
657 |
public void remove() {
|
|
658 |
throw new UnsupportedOperationException();
|
|
659 |
}
|
|
660 |
};
|
|
661 |
}
|
|
662 |
};
|
|
663 |
}
|
|
664 |
|
|
665 |
public boolean hasLoops() {
|
|
666 |
return hasNode(LoopBeginNode.TYPE);
|
|
667 |
}
|
|
668 |
|
|
669 |
/**
|
|
670 |
* Unlinks a node from all its control flow neighbors and then removes it from its graph. The
|
|
671 |
* node must have no {@linkplain Node#usages() usages}.
|
|
672 |
*
|
|
673 |
* @param node the node to be unlinked and removed
|
|
674 |
*/
|
46344
|
675 |
@SuppressWarnings("static-method")
|
43972
|
676 |
public void removeFixed(FixedWithNextNode node) {
|
|
677 |
assert node != null;
|
|
678 |
if (node instanceof AbstractBeginNode) {
|
|
679 |
((AbstractBeginNode) node).prepareDelete();
|
|
680 |
}
|
55509
|
681 |
assert node.hasNoUsages() : node + " " + node.getUsageCount() + ", " + node.usages().first();
|
43972
|
682 |
GraphUtil.unlinkFixedNode(node);
|
|
683 |
node.safeDelete();
|
|
684 |
}
|
|
685 |
|
|
686 |
public void replaceFixed(FixedWithNextNode node, Node replacement) {
|
|
687 |
if (replacement instanceof FixedWithNextNode) {
|
|
688 |
replaceFixedWithFixed(node, (FixedWithNextNode) replacement);
|
|
689 |
} else {
|
|
690 |
assert replacement != null : "cannot replace " + node + " with null";
|
|
691 |
assert replacement instanceof FloatingNode : "cannot replace " + node + " with " + replacement;
|
|
692 |
replaceFixedWithFloating(node, (FloatingNode) replacement);
|
|
693 |
}
|
|
694 |
}
|
|
695 |
|
|
696 |
public void replaceFixedWithFixed(FixedWithNextNode node, FixedWithNextNode replacement) {
|
|
697 |
assert node != null && replacement != null && node.isAlive() && replacement.isAlive() : "cannot replace " + node + " with " + replacement;
|
|
698 |
FixedNode next = node.next();
|
|
699 |
node.setNext(null);
|
|
700 |
replacement.setNext(next);
|
|
701 |
node.replaceAndDelete(replacement);
|
|
702 |
if (node == start) {
|
|
703 |
setStart((StartNode) replacement);
|
|
704 |
}
|
|
705 |
}
|
|
706 |
|
46344
|
707 |
@SuppressWarnings("static-method")
|
|
708 |
public void replaceFixedWithFloating(FixedWithNextNode node, ValueNode replacement) {
|
43972
|
709 |
assert node != null && replacement != null && node.isAlive() && replacement.isAlive() : "cannot replace " + node + " with " + replacement;
|
|
710 |
GraphUtil.unlinkFixedNode(node);
|
|
711 |
node.replaceAtUsagesAndDelete(replacement);
|
|
712 |
}
|
|
713 |
|
46344
|
714 |
@SuppressWarnings("static-method")
|
43972
|
715 |
public void removeSplit(ControlSplitNode node, AbstractBeginNode survivingSuccessor) {
|
|
716 |
assert node != null;
|
|
717 |
assert node.hasNoUsages();
|
|
718 |
assert survivingSuccessor != null;
|
|
719 |
node.clearSuccessors();
|
|
720 |
node.replaceAtPredecessor(survivingSuccessor);
|
|
721 |
node.safeDelete();
|
|
722 |
}
|
|
723 |
|
46371
|
724 |
@SuppressWarnings("static-method")
|
43972
|
725 |
public void removeSplitPropagate(ControlSplitNode node, AbstractBeginNode survivingSuccessor) {
|
|
726 |
assert node != null;
|
|
727 |
assert node.hasNoUsages();
|
|
728 |
assert survivingSuccessor != null;
|
|
729 |
List<Node> snapshot = node.successors().snapshot();
|
|
730 |
node.clearSuccessors();
|
|
731 |
node.replaceAtPredecessor(survivingSuccessor);
|
|
732 |
node.safeDelete();
|
|
733 |
for (Node successor : snapshot) {
|
|
734 |
if (successor != null && successor.isAlive()) {
|
|
735 |
if (successor != survivingSuccessor) {
|
46371
|
736 |
GraphUtil.killCFG((FixedNode) successor);
|
43972
|
737 |
}
|
|
738 |
}
|
|
739 |
}
|
|
740 |
}
|
|
741 |
|
|
742 |
public void replaceSplit(ControlSplitNode node, Node replacement, AbstractBeginNode survivingSuccessor) {
|
|
743 |
if (replacement instanceof FixedWithNextNode) {
|
|
744 |
replaceSplitWithFixed(node, (FixedWithNextNode) replacement, survivingSuccessor);
|
|
745 |
} else {
|
|
746 |
assert replacement != null : "cannot replace " + node + " with null";
|
|
747 |
assert replacement instanceof FloatingNode : "cannot replace " + node + " with " + replacement;
|
|
748 |
replaceSplitWithFloating(node, (FloatingNode) replacement, survivingSuccessor);
|
|
749 |
}
|
|
750 |
}
|
|
751 |
|
46344
|
752 |
@SuppressWarnings("static-method")
|
43972
|
753 |
public void replaceSplitWithFixed(ControlSplitNode node, FixedWithNextNode replacement, AbstractBeginNode survivingSuccessor) {
|
|
754 |
assert node != null && replacement != null && node.isAlive() && replacement.isAlive() : "cannot replace " + node + " with " + replacement;
|
|
755 |
assert survivingSuccessor != null;
|
|
756 |
node.clearSuccessors();
|
|
757 |
replacement.setNext(survivingSuccessor);
|
|
758 |
node.replaceAndDelete(replacement);
|
|
759 |
}
|
|
760 |
|
46344
|
761 |
@SuppressWarnings("static-method")
|
43972
|
762 |
public void replaceSplitWithFloating(ControlSplitNode node, FloatingNode replacement, AbstractBeginNode survivingSuccessor) {
|
|
763 |
assert node != null && replacement != null && node.isAlive() && replacement.isAlive() : "cannot replace " + node + " with " + replacement;
|
|
764 |
assert survivingSuccessor != null;
|
|
765 |
node.clearSuccessors();
|
|
766 |
node.replaceAtPredecessor(survivingSuccessor);
|
|
767 |
node.replaceAtUsagesAndDelete(replacement);
|
|
768 |
}
|
|
769 |
|
46344
|
770 |
@SuppressWarnings("static-method")
|
43972
|
771 |
public void addAfterFixed(FixedWithNextNode node, FixedNode newNode) {
|
|
772 |
assert node != null && newNode != null && node.isAlive() && newNode.isAlive() : "cannot add " + newNode + " after " + node;
|
|
773 |
FixedNode next = node.next();
|
|
774 |
node.setNext(newNode);
|
|
775 |
if (next != null) {
|
|
776 |
assert newNode instanceof FixedWithNextNode;
|
|
777 |
FixedWithNextNode newFixedWithNext = (FixedWithNextNode) newNode;
|
|
778 |
assert newFixedWithNext.next() == null;
|
|
779 |
newFixedWithNext.setNext(next);
|
|
780 |
}
|
|
781 |
}
|
|
782 |
|
46344
|
783 |
@SuppressWarnings("static-method")
|
43972
|
784 |
public void addBeforeFixed(FixedNode node, FixedWithNextNode newNode) {
|
|
785 |
assert node != null && newNode != null && node.isAlive() && newNode.isAlive() : "cannot add " + newNode + " before " + node;
|
|
786 |
assert node.predecessor() != null && node.predecessor() instanceof FixedWithNextNode : "cannot add " + newNode + " before " + node;
|
|
787 |
assert newNode.next() == null : newNode;
|
|
788 |
assert !(node instanceof AbstractMergeNode);
|
|
789 |
FixedWithNextNode pred = (FixedWithNextNode) node.predecessor();
|
|
790 |
pred.setNext(newNode);
|
|
791 |
newNode.setNext(node);
|
|
792 |
}
|
|
793 |
|
|
794 |
public void reduceDegenerateLoopBegin(LoopBeginNode begin) {
|
|
795 |
assert begin.loopEnds().isEmpty() : "Loop begin still has backedges";
|
|
796 |
if (begin.forwardEndCount() == 1) { // bypass merge and remove
|
|
797 |
reduceTrivialMerge(begin);
|
|
798 |
} else { // convert to merge
|
|
799 |
AbstractMergeNode merge = this.add(new MergeNode());
|
|
800 |
for (EndNode end : begin.forwardEnds()) {
|
|
801 |
merge.addForwardEnd(end);
|
|
802 |
}
|
|
803 |
this.replaceFixedWithFixed(begin, merge);
|
|
804 |
}
|
|
805 |
}
|
|
806 |
|
46344
|
807 |
@SuppressWarnings("static-method")
|
43972
|
808 |
public void reduceTrivialMerge(AbstractMergeNode merge) {
|
|
809 |
assert merge.forwardEndCount() == 1;
|
|
810 |
assert !(merge instanceof LoopBeginNode) || ((LoopBeginNode) merge).loopEnds().isEmpty();
|
|
811 |
for (PhiNode phi : merge.phis().snapshot()) {
|
|
812 |
assert phi.valueCount() == 1;
|
|
813 |
ValueNode singleValue = phi.valueAt(0);
|
|
814 |
if (phi.hasUsages()) {
|
|
815 |
phi.replaceAtUsagesAndDelete(singleValue);
|
|
816 |
} else {
|
|
817 |
phi.safeDelete();
|
|
818 |
if (singleValue != null) {
|
|
819 |
GraphUtil.tryKillUnused(singleValue);
|
|
820 |
}
|
|
821 |
}
|
|
822 |
}
|
|
823 |
// remove loop exits
|
|
824 |
if (merge instanceof LoopBeginNode) {
|
|
825 |
((LoopBeginNode) merge).removeExits();
|
|
826 |
}
|
|
827 |
AbstractEndNode singleEnd = merge.forwardEndAt(0);
|
|
828 |
FixedNode sux = merge.next();
|
|
829 |
FrameState stateAfter = merge.stateAfter();
|
|
830 |
// evacuateGuards
|
|
831 |
merge.prepareDelete((FixedNode) singleEnd.predecessor());
|
|
832 |
merge.safeDelete();
|
46344
|
833 |
if (stateAfter != null) {
|
|
834 |
GraphUtil.tryKillUnused(stateAfter);
|
43972
|
835 |
}
|
|
836 |
if (sux == null) {
|
|
837 |
singleEnd.replaceAtPredecessor(null);
|
|
838 |
singleEnd.safeDelete();
|
|
839 |
} else {
|
|
840 |
singleEnd.replaceAndDelete(sux);
|
|
841 |
}
|
|
842 |
}
|
|
843 |
|
|
844 |
public GuardsStage getGuardsStage() {
|
|
845 |
return guardsStage;
|
|
846 |
}
|
|
847 |
|
|
848 |
public void setGuardsStage(GuardsStage guardsStage) {
|
|
849 |
assert guardsStage.ordinal() >= this.guardsStage.ordinal();
|
|
850 |
this.guardsStage = guardsStage;
|
|
851 |
}
|
|
852 |
|
|
853 |
public boolean isAfterFloatingReadPhase() {
|
|
854 |
return isAfterFloatingReadPhase;
|
|
855 |
}
|
|
856 |
|
46551
|
857 |
public boolean isAfterFixedReadPhase() {
|
|
858 |
return isAfterFixedReadPhase;
|
|
859 |
}
|
|
860 |
|
43972
|
861 |
public void setAfterFloatingReadPhase(boolean state) {
|
|
862 |
assert state : "cannot 'unapply' floating read phase on graph";
|
|
863 |
isAfterFloatingReadPhase = state;
|
|
864 |
}
|
|
865 |
|
46551
|
866 |
public void setAfterFixReadPhase(boolean state) {
|
|
867 |
assert state : "cannot 'unapply' fix reads phase on graph";
|
|
868 |
isAfterFixedReadPhase = state;
|
|
869 |
}
|
|
870 |
|
43972
|
871 |
public boolean hasValueProxies() {
|
|
872 |
return hasValueProxies;
|
|
873 |
}
|
|
874 |
|
|
875 |
public void setHasValueProxies(boolean state) {
|
|
876 |
assert !state : "cannot 'unapply' value proxy removal on graph";
|
|
877 |
hasValueProxies = state;
|
|
878 |
}
|
|
879 |
|
46459
|
880 |
public boolean isAfterExpandLogic() {
|
|
881 |
return isAfterExpandLogic;
|
46344
|
882 |
}
|
|
883 |
|
46459
|
884 |
public void setAfterExpandLogic() {
|
|
885 |
isAfterExpandLogic = true;
|
46344
|
886 |
}
|
|
887 |
|
43972
|
888 |
/**
|
|
889 |
* Determines if {@link ProfilingInfo} is used during construction of this graph.
|
|
890 |
*/
|
|
891 |
public boolean useProfilingInfo() {
|
|
892 |
return useProfilingInfo;
|
|
893 |
}
|
|
894 |
|
|
895 |
/**
|
51736
|
896 |
* Returns true if this graph is built without parsing the {@linkplain #method() root method} or
|
|
897 |
* if the root method is annotated by {@link Snippet} or {@link MethodSubstitution}. This is
|
|
898 |
* preferred over querying annotations directly as querying annotations can cause class loading.
|
|
899 |
*/
|
|
900 |
public boolean isSubstitution() {
|
|
901 |
return isSubstitution;
|
|
902 |
}
|
|
903 |
|
|
904 |
/**
|
43972
|
905 |
* Gets the profiling info for the {@linkplain #method() root method} of this graph.
|
|
906 |
*/
|
|
907 |
public ProfilingInfo getProfilingInfo() {
|
|
908 |
return getProfilingInfo(method());
|
|
909 |
}
|
|
910 |
|
|
911 |
/**
|
|
912 |
* Gets the profiling info for a given method that is or will be part of this graph, taking into
|
|
913 |
* account {@link #useProfilingInfo()}.
|
|
914 |
*/
|
|
915 |
public ProfilingInfo getProfilingInfo(ResolvedJavaMethod m) {
|
|
916 |
if (useProfilingInfo && m != null) {
|
|
917 |
return m.getProfilingInfo();
|
|
918 |
} else {
|
|
919 |
return DefaultProfilingInfo.get(TriState.UNKNOWN);
|
|
920 |
}
|
|
921 |
}
|
|
922 |
|
|
923 |
/**
|
|
924 |
* Gets the object for recording assumptions while constructing of this graph.
|
|
925 |
*
|
|
926 |
* @return {@code null} if assumptions cannot be made for this graph
|
|
927 |
*/
|
|
928 |
public Assumptions getAssumptions() {
|
|
929 |
return assumptions;
|
|
930 |
}
|
|
931 |
|
|
932 |
/**
|
50609
|
933 |
* Checks that any method referenced from a {@link FrameState} is also in the set of methods
|
|
934 |
* parsed while building this graph.
|
|
935 |
*/
|
|
936 |
private boolean checkFrameStatesAgainstInlinedMethods() {
|
|
937 |
for (FrameState fs : getNodes(FrameState.TYPE)) {
|
|
938 |
if (!BytecodeFrame.isPlaceholderBci(fs.bci)) {
|
|
939 |
ResolvedJavaMethod m = fs.code.getMethod();
|
|
940 |
if (!m.equals(rootMethod) && !methods.contains(m)) {
|
|
941 |
SortedSet<String> haystack = new TreeSet<>();
|
|
942 |
if (!methods.contains(rootMethod)) {
|
|
943 |
haystack.add(rootMethod.format("%H.%n(%p)"));
|
|
944 |
}
|
|
945 |
for (ResolvedJavaMethod e : methods) {
|
|
946 |
haystack.add(e.format("%H.%n(%p)"));
|
|
947 |
}
|
|
948 |
throw new AssertionError(String.format("Could not find %s from %s in set(%s)", m.format("%H.%n(%p)"), fs, haystack.stream().collect(Collectors.joining(System.lineSeparator()))));
|
|
949 |
}
|
|
950 |
}
|
|
951 |
}
|
|
952 |
return true;
|
|
953 |
}
|
|
954 |
|
|
955 |
private static EconomicSet<ResolvedJavaField> createFieldSet(EconomicSet<ResolvedJavaField> init) {
|
|
956 |
// Multiple ResolvedJavaField objects can represent the same field so they
|
|
957 |
// need to be compared with equals().
|
|
958 |
if (init != null) {
|
|
959 |
return EconomicSet.create(Equivalence.DEFAULT, init);
|
|
960 |
}
|
|
961 |
return EconomicSet.create(Equivalence.DEFAULT);
|
|
962 |
}
|
|
963 |
|
|
964 |
/**
|
|
965 |
* Gets an unmodifiable view of the methods that were inlined while constructing this graph.
|
43972
|
966 |
*/
|
|
967 |
public List<ResolvedJavaMethod> getMethods() {
|
50609
|
968 |
if (methods != null) {
|
54601
|
969 |
assert isSubstitution || checkFrameStatesAgainstInlinedMethods();
|
50609
|
970 |
return Collections.unmodifiableList(methods);
|
|
971 |
}
|
|
972 |
return Collections.emptyList();
|
43972
|
973 |
}
|
|
974 |
|
|
975 |
/**
|
|
976 |
* Records that {@code method} was used to build this graph.
|
|
977 |
*/
|
|
978 |
public void recordMethod(ResolvedJavaMethod method) {
|
51436
|
979 |
if (methods != null) {
|
|
980 |
methods.add(method);
|
50609
|
981 |
}
|
43972
|
982 |
}
|
|
983 |
|
|
984 |
/**
|
|
985 |
* Updates the {@linkplain #getMethods() methods} used to build this graph with the methods used
|
|
986 |
* to build another graph.
|
|
987 |
*/
|
|
988 |
public void updateMethods(StructuredGraph other) {
|
51436
|
989 |
if (methods != null) {
|
|
990 |
if (other.rootMethod != null) {
|
|
991 |
methods.add(other.rootMethod);
|
|
992 |
}
|
|
993 |
for (ResolvedJavaMethod m : other.methods) {
|
|
994 |
methods.add(m);
|
|
995 |
}
|
50609
|
996 |
}
|
43972
|
997 |
}
|
|
998 |
|
|
999 |
/**
|
50609
|
1000 |
* Gets an unmodifiable view of the fields that were accessed while constructing this graph.
|
|
1001 |
*
|
|
1002 |
* @return {@code null} if no field accesses were recorded
|
43972
|
1003 |
*/
|
46344
|
1004 |
public EconomicSet<ResolvedJavaField> getFields() {
|
43972
|
1005 |
return fields;
|
|
1006 |
}
|
|
1007 |
|
|
1008 |
/**
|
|
1009 |
* Records that {@code field} was accessed in this graph.
|
|
1010 |
*/
|
|
1011 |
public void recordField(ResolvedJavaField field) {
|
46344
|
1012 |
assert GraalOptions.GeneratePIC.getValue(getOptions());
|
|
1013 |
if (this.fields == null) {
|
50609
|
1014 |
this.fields = createFieldSet(null);
|
46344
|
1015 |
}
|
43972
|
1016 |
fields.add(field);
|
|
1017 |
}
|
|
1018 |
|
|
1019 |
/**
|
|
1020 |
* Updates the {@linkplain #getFields() fields} of this graph with the accessed fields of
|
|
1021 |
* another graph.
|
|
1022 |
*/
|
|
1023 |
public void updateFields(StructuredGraph other) {
|
|
1024 |
assert this != other;
|
46344
|
1025 |
assert GraalOptions.GeneratePIC.getValue(getOptions());
|
|
1026 |
if (other.fields != null) {
|
|
1027 |
if (this.fields == null) {
|
50609
|
1028 |
this.fields = createFieldSet(null);
|
46344
|
1029 |
}
|
|
1030 |
this.fields.addAll(other.fields);
|
|
1031 |
}
|
43972
|
1032 |
}
|
|
1033 |
|
|
1034 |
/**
|
|
1035 |
* Gets the input bytecode {@linkplain ResolvedJavaMethod#getCodeSize() size} from which this
|
|
1036 |
* graph is constructed. This ignores how many bytecodes in each constituent method are actually
|
|
1037 |
* parsed (which may be none for methods whose IR is retrieved from a cache or less than the
|
|
1038 |
* full amount for any given method due to profile guided branch pruning).
|
|
1039 |
*/
|
|
1040 |
public int getBytecodeSize() {
|
|
1041 |
int res = 0;
|
50609
|
1042 |
if (rootMethod != null) {
|
|
1043 |
res += rootMethod.getCodeSize();
|
|
1044 |
}
|
|
1045 |
if (methods != null) {
|
|
1046 |
for (ResolvedJavaMethod e : methods) {
|
|
1047 |
res += e.getCodeSize();
|
|
1048 |
}
|
43972
|
1049 |
}
|
|
1050 |
return res;
|
|
1051 |
}
|
|
1052 |
|
|
1053 |
@Override
|
|
1054 |
public JavaMethod asJavaMethod() {
|
|
1055 |
return method();
|
|
1056 |
}
|
|
1057 |
|
|
1058 |
public boolean hasUnsafeAccess() {
|
|
1059 |
return hasUnsafeAccess == UnsafeAccessState.HAS_ACCESS;
|
|
1060 |
}
|
|
1061 |
|
|
1062 |
public void markUnsafeAccess() {
|
|
1063 |
if (hasUnsafeAccess == UnsafeAccessState.DISABLED) {
|
|
1064 |
return;
|
|
1065 |
}
|
|
1066 |
hasUnsafeAccess = UnsafeAccessState.HAS_ACCESS;
|
|
1067 |
}
|
|
1068 |
|
|
1069 |
public void disableUnsafeAccessTracking() {
|
|
1070 |
hasUnsafeAccess = UnsafeAccessState.DISABLED;
|
|
1071 |
}
|
|
1072 |
|
|
1073 |
public boolean isUnsafeAccessTrackingEnabled() {
|
|
1074 |
return hasUnsafeAccess != UnsafeAccessState.DISABLED;
|
|
1075 |
}
|
|
1076 |
|
|
1077 |
public SpeculationLog getSpeculationLog() {
|
|
1078 |
return speculationLog;
|
|
1079 |
}
|
|
1080 |
|
46344
|
1081 |
public void clearAllStateAfter() {
|
43972
|
1082 |
for (Node node : getNodes()) {
|
|
1083 |
if (node instanceof StateSplit) {
|
|
1084 |
FrameState stateAfter = ((StateSplit) node).stateAfter();
|
|
1085 |
if (stateAfter != null) {
|
|
1086 |
((StateSplit) node).setStateAfter(null);
|
|
1087 |
// 2 nodes referencing the same framestate
|
|
1088 |
if (stateAfter.isAlive()) {
|
|
1089 |
GraphUtil.killWithUnusedFloatingInputs(stateAfter);
|
|
1090 |
}
|
|
1091 |
}
|
|
1092 |
}
|
|
1093 |
}
|
|
1094 |
}
|
|
1095 |
|
46344
|
1096 |
public boolean hasVirtualizableAllocation() {
|
43972
|
1097 |
for (Node n : getNodes()) {
|
|
1098 |
if (n instanceof VirtualizableAllocation) {
|
|
1099 |
return true;
|
|
1100 |
}
|
|
1101 |
}
|
|
1102 |
return false;
|
|
1103 |
}
|
46344
|
1104 |
|
|
1105 |
@Override
|
|
1106 |
protected void afterRegister(Node node) {
|
|
1107 |
assert hasValueProxies() || !(node instanceof ValueProxyNode);
|
49451
|
1108 |
if (GraalOptions.TraceInlining.getValue(getOptions())) {
|
|
1109 |
if (node instanceof Invokable) {
|
|
1110 |
((Invokable) node).updateInliningLogAfterRegister(this);
|
|
1111 |
}
|
|
1112 |
}
|
46344
|
1113 |
}
|
48861
|
1114 |
|
|
1115 |
public NodeSourcePosition getCallerContext() {
|
|
1116 |
return callerContext;
|
|
1117 |
}
|
43972
|
1118 |
}
|