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annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/LocationNode.java @ 5443:141817e206d4

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changes to the dependencies and stamp system: * dependencies can only be of type ValueNode * exactType is a boolean flag, not a separate RiResolvedType * use different Stamp subclasses for IntegerStamp, FloatStamp, ObjectStamp and GenericStamp * use different stamp for nodes that can be a target for dependencies * use different PhiNode constructors for value- and non-value-Phis * use correct stamps for ExceptionObjectNode and CurrentThread
author Lukas Stadler <lukas.stadler@jku.at>
date Fri, 25 May 2012 11:35:18 +0200
parents 0ebd9cfdc11f
children 215981c9fd77
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1 /*
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2 * Copyright (c) 2011, 2012, 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.graal.nodes.extended;
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24
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25 import com.oracle.max.cri.ci.*;
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26 import com.oracle.graal.graph.*;
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27 import com.oracle.graal.graph.Node.ValueNumberable;
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28 import com.oracle.graal.nodes.calc.*;
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29 import com.oracle.graal.nodes.spi.*;
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30 import com.oracle.graal.nodes.type.*;
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32 public class LocationNode extends FloatingNode implements LIRLowerable, ValueNumberable {
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33
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34 private int displacement;
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35 private CiKind valueKind;
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36 private Object locationIdentity;
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38 public static final Object ANY_LOCATION = new Object() {
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39 @Override
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40 public String toString() {
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41 return "ANY_LOCATION";
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42 }
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43 };
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44 public static final Object FINAL_LOCATION = new Object() {
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45 @Override
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46 public String toString() {
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47 return "FINAL_LOCATION";
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48 }
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49 };
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50
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51 public static Object getArrayLocation(CiKind elementKind) {
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52 return elementKind;
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53 }
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54
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55 public int displacement() {
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56 return displacement;
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57 }
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58
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59 public static LocationNode create(Object identity, CiKind kind, int displacement, Graph graph) {
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60 return graph.unique(new LocationNode(identity, kind, displacement));
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61 }
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62
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63 protected LocationNode(Object identity, CiKind kind, int displacement) {
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64 super(StampFactory.extension());
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65 assert kind != CiKind.Illegal && kind != CiKind.Void;
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66 this.displacement = displacement;
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67 this.valueKind = kind;
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68 this.locationIdentity = identity;
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69 }
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71 public CiKind getValueKind() {
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72 return valueKind;
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73 }
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74
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75 public Object locationIdentity() {
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76 return locationIdentity;
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77 }
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79 @Override
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80 public void generate(LIRGeneratorTool generator) {
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81 // nothing to do...
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82 }
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83 }