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annotate graal/GraalCompiler/src/com/sun/c1x/ir/AccessMonitor.java @ 2565:cc1f1d396288

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Remove inlining (3rd part)
author Gilles Duboscq <gilles.duboscq@oracle.com>
date Fri, 29 Apr 2011 16:46:30 +0200
parents 16b9a8b5ad39
children 1c36b17f7ee0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.sun.c1x.ir;
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24
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25 import com.sun.c1x.value.*;
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26 import com.sun.cri.ci.*;
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27
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28 /**
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29 * The {@code AccessMonitor} instruction is the base class of both monitor acquisition and release.
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30 *
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31 * @author Ben L. Titzer
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32 */
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33 public abstract class AccessMonitor extends StateSplit {
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34
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35 /**
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36 * The object locked or unlocked by this instruction.
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37 */
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38 private Value object;
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39
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40 /**
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41 * The address of the on-stack lock object or {@code null} if the runtime does not place locks on the stack.
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42 */
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43 private Value lockAddress;
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44
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45 /**
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46 * The lock number of this monitor access.
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47 */
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48 public final int lockNumber;
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49
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50
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51 /**
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52 * Creates a new AccessMonitor instruction.
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53 *
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54 * @param object the instruction producing the object
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55 * @param lockAddress the address of the on-stack lock object or {@code null} if the runtime does not place locks on the stack
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56 * @param stateBefore the state before executing the monitor operation
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57 * @param lockNumber the number of the lock being acquired
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58 */
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59 public AccessMonitor(Value object, Value lockAddress, FrameState stateBefore, int lockNumber) {
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60 super(CiKind.Illegal, stateBefore);
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61 this.object = object;
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62 this.lockAddress = lockAddress;
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63 this.lockNumber = lockNumber;
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64 }
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65
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66 /**
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67 * Gets the instruction producing the object locked or unlocked by this instruction.
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68 */
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69 public Value object() {
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70 return object;
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71 }
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72
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73 /**
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74 * Gets the instruction producing the address of the lock object.
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75 */
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76 public Value lockAddress() {
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77 return lockAddress;
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78 }
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79
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80 @Override
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81 public void inputValuesDo(ValueClosure closure) {
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82 object = closure.apply(object);
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83 if (lockAddress != null) {
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84 lockAddress = closure.apply(lockAddress);
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85 }
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86 }
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87 }