Mercurial > hg > truffle
view graal/GraalCompiler/src/com/sun/c1x/ir/AccessMonitor.java @ 2669:405e7947a940
Fixed RegisterFinalizer stateBefore.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
---|---|
date | Thu, 12 May 2011 16:55:03 +0200 |
parents | 569228710be8 |
children |
line wrap: on
line source
/* * 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.sun.c1x.ir; import com.oracle.graal.graph.*; import com.sun.cri.ci.*; /** * The {@code AccessMonitor} instruction is the base class of both monitor acquisition and release. */ public abstract class AccessMonitor extends StateSplit { private static final int INPUT_COUNT = 2; private static final int INPUT_OBJECT = 0; private static final int INPUT_LOCK_ADDRESS = 1; private static final int SUCCESSOR_COUNT = 0; @Override protected int inputCount() { return super.inputCount() + INPUT_COUNT; } @Override protected int successorCount() { return super.successorCount() + SUCCESSOR_COUNT; } /** * The instruction producing the object locked or unlocked by this instruction. */ public Value object() { return (Value) inputs().get(super.inputCount() + INPUT_OBJECT); } public Value setObject(Value n) { return (Value) inputs().set(super.inputCount() + INPUT_OBJECT, n); } /** * The instruction producing the address of the lock object. */ public Value lockAddress() { return (Value) inputs().get(super.inputCount() + INPUT_LOCK_ADDRESS); } public Value setLockAddress(Value n) { return (Value) inputs().set(super.inputCount() + INPUT_LOCK_ADDRESS, n); } /** * 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 stateBefore the state before executing the monitor operation * @param lockNumber the number of the lock being acquired * @param inputCount * @param successorCount * @param graph */ public AccessMonitor(Value object, Value lockAddress, int lockNumber, int inputCount, int successorCount, Graph graph) { super(CiKind.Illegal, inputCount + INPUT_COUNT, successorCount + SUCCESSOR_COUNT, graph); this.lockNumber = lockNumber; setObject(object); setLockAddress(lockAddress); } }