| /* |
| * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * 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. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| 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. |
| */ |
| @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(); |
| } |
| |
| } |