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 * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package org.graalvm.compiler.nodes;

import static org.graalvm.compiler.nodeinfo.InputType.State;
import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0;
import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0;

import org.graalvm.compiler.core.common.type.StampFactory;
import org.graalvm.compiler.graph.NodeClass;
import org.graalvm.compiler.graph.spi.Simplifiable;
import org.graalvm.compiler.graph.spi.SimplifierTool;
import org.graalvm.compiler.nodeinfo.NodeInfo;
import org.graalvm.compiler.nodes.spi.LIRLowerable;
import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool;
import org.graalvm.compiler.nodes.spi.NodeWithState;

import jdk.vm.ci.code.site.InfopointReason;

Nodes of this type are inserted into the graph to denote points of interest to debugging.
/** * Nodes of this type are inserted into the graph to denote points of interest to debugging. */
@NodeInfo(cycles = CYCLES_0, size = SIZE_0) public final class FullInfopointNode extends FixedWithNextNode implements LIRLowerable, NodeWithState, Simplifiable { public static final NodeClass<FullInfopointNode> TYPE = NodeClass.create(FullInfopointNode.class); protected final InfopointReason reason; @Input(State) FrameState state; @OptionalInput ValueNode escapedReturnValue; public FullInfopointNode(InfopointReason reason, FrameState state, ValueNode escapedReturnValue) { super(TYPE, StampFactory.forVoid()); this.reason = reason; this.state = state; this.escapedReturnValue = escapedReturnValue; } public InfopointReason getReason() { return reason; } private void setEscapedReturnValue(ValueNode x) { updateUsages(escapedReturnValue, x); escapedReturnValue = x; } @Override public void simplify(SimplifierTool tool) { if (escapedReturnValue != null && state != null && state.outerFrameState() != null) { ValueNode returnValue = escapedReturnValue; setEscapedReturnValue(null); tool.removeIfUnused(returnValue); } } @Override public void generate(NodeLIRBuilderTool generator) { generator.visitFullInfopointNode(this); } public FrameState getState() { return state; } @Override public boolean verify() { return state != null && super.verify(); } }