Mercurial > hg > graal-jvmci-8
view graal/com.oracle.max.graal.nodes/src/com/oracle/max/graal/nodes/java/AccessMonitorNode.java @ 3531:dc4268828826
Fourth round of refactoring.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
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date | Wed, 10 Aug 2011 01:12:36 +0200 |
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/* * Copyright (c) 2009, 2011, 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 com.oracle.max.graal.nodes.java; import com.oracle.max.graal.graph.*; import com.oracle.max.graal.nodes.*; import com.oracle.max.graal.nodes.extended.*; import com.sun.cri.ci.*; /** * The {@code AccessMonitor} instruction is the base class of both monitor acquisition and release. */ public abstract class AccessMonitorNode extends AbstractMemoryCheckpointNode { @Input private ValueNode object; @Input private ValueNode lockAddress; public ValueNode object() { return object; } public void setObject(ValueNode x) { updateUsages(object, x); object = x; } public ValueNode lockAddress() { return lockAddress; } public void setLockAddress(ValueNode x) { updateUsages(lockAddress, x); lockAddress = x; } /** * The lock number of this monitor access. */ public final int lockNumber; /** * Creates a new AccessMonitor instruction. * * @param object the instruction producing the object * @param lockAddress the address of the on-stack lock object or {@code null} if the runtime does not place locks on the stack * @param lockNumber the number of the lock being acquired * @param graph */ public AccessMonitorNode(ValueNode object, ValueNode lockAddress, int lockNumber, Graph graph) { super(CiKind.Illegal, graph); this.lockNumber = lockNumber; setObject(object); setLockAddress(lockAddress); } }