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annotate graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/ir/RegisterFinalizer.java @ 3000:6c95d57cb1e2

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Removed usage of stateBefore. Now framestate is always a successor of its associated node.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Thu, 16 Jun 2011 16:00:01 +0200
parents d90bf514d647
children a4b0c3df7f80
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1 /*
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2 * Copyright (c) 2011, 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.oracle.max.graal.compiler.ir;
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24
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25 import com.oracle.max.graal.compiler.debug.*;
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26 import com.oracle.max.graal.graph.*;
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27 import com.sun.cri.ci.*;
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29 /**
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30 * This instruction is used to perform the finalizer registration at the end of the java.lang.Object constructor.
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31 */
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32 public final class RegisterFinalizer extends StateSplit {
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34 private static final int INPUT_COUNT = 1;
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35 private static final int INPUT_OBJECT = 0;
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37 private static final int SUCCESSOR_COUNT = 0;
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39 @Override
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40 protected int inputCount() {
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41 return super.inputCount() + INPUT_COUNT;
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42 }
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43
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44 @Override
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45 protected int successorCount() {
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46 return super.successorCount() + SUCCESSOR_COUNT;
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47 }
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48
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49 /**
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50 * The instruction that produces the object whose finalizer should be registered.
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51 */
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52 public Value object() {
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53 return (Value) inputs().get(super.inputCount() + INPUT_OBJECT);
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54 }
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55
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56 public Value setObject(Value n) {
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57 return (Value) inputs().set(super.inputCount() + INPUT_OBJECT, n);
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58 }
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59
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60 public RegisterFinalizer(Value object, Graph graph) {
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61 super(CiKind.Void, INPUT_COUNT, SUCCESSOR_COUNT, graph);
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62 setObject(object);
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63 }
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64
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65 @Override
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66 public void accept(ValueVisitor v) {
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67 v.visitRegisterFinalizer(this);
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68 }
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69
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70 @Override
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71 public void print(LogStream out) {
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72 out.print("register finalizer ").print(object());
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73 }
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74
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75 @Override
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76 public Node copy(Graph into) {
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77 return new RegisterFinalizer(null, into);
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78 }
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79 }