| /* |
| * Copyright (c) 2014, 2015, 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.java; |
| |
| import static org.graalvm.compiler.nodeinfo.InputType.Association; |
| 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.IterableNodeType; |
| import org.graalvm.compiler.graph.NodeClass; |
| import org.graalvm.compiler.nodeinfo.NodeInfo; |
| import org.graalvm.compiler.nodes.FrameState; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.spi.LIRLowerable; |
| import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; |
| |
| /** |
| * This node describes one locking scope; it ties the monitor enter, monitor exit and the frame |
| * states together. It is thus referenced from the {@link MonitorEnterNode}, from the |
| * {@link MonitorExitNode} and from the {@link FrameState}. |
| */ |
| @NodeInfo(allowedUsageTypes = Association, cycles = CYCLES_0, size = SIZE_0) |
| public class MonitorIdNode extends ValueNode implements IterableNodeType, LIRLowerable { |
| |
| public static final NodeClass<MonitorIdNode> TYPE = NodeClass.create(MonitorIdNode.class); |
| protected int lockDepth; |
| |
| public MonitorIdNode(int lockDepth) { |
| this(TYPE, lockDepth); |
| } |
| |
| protected MonitorIdNode(NodeClass<? extends MonitorIdNode> c, int lockDepth) { |
| super(c, StampFactory.forVoid()); |
| this.lockDepth = lockDepth; |
| } |
| |
| public int getLockDepth() { |
| return lockDepth; |
| } |
| |
| public void setLockDepth(int lockDepth) { |
| this.lockDepth = lockDepth; |
| } |
| |
| @Override |
| public void generate(NodeLIRBuilderTool generator) { |
| // nothing to do |
| } |
| } |