Mercurial > hg > graal-compiler
annotate graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/extended/IndexedLocationNode.java @ 5299:0ebd9cfdc11f
removed @Data annotation
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Wed, 25 Apr 2012 13:02:10 +0200 |
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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.nodes.*; |
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28 import com.oracle.graal.nodes.spi.*; |
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29 |
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30 public final class IndexedLocationNode extends LocationNode implements LIRLowerable, Canonicalizable { |
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31 @Input private ValueNode index; |
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32 private boolean indexScalingEnabled; |
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33 |
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34 public ValueNode index() { |
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35 return index; |
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36 } |
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37 |
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38 public static Object getArrayLocation(CiKind elementKind) { |
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39 return elementKind; |
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40 } |
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41 |
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42 /** |
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43 * @return whether scaling of the index by the value kind's size is enabled (the default) or disabled. |
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44 */ |
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45 public boolean indexScalingEnabled() { |
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46 return indexScalingEnabled; |
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47 } |
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48 |
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49 /** |
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50 * Enables or disables scaling of the index by the value kind's size. Has no effect if the index input is not used. |
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51 */ |
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52 public void setIndexScalingEnabled(boolean enable) { |
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53 this.indexScalingEnabled = enable; |
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54 } |
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55 |
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56 public static IndexedLocationNode create(Object identity, CiKind kind, int displacement, ValueNode index, Graph graph) { |
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57 return create(identity, kind, displacement, index, graph, true); |
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58 } |
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59 |
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60 public static IndexedLocationNode create(Object identity, CiKind kind, int displacement, ValueNode index, Graph graph, boolean indexScalingEnabled) { |
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61 return graph.unique(new IndexedLocationNode(identity, kind, index, displacement, indexScalingEnabled)); |
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62 } |
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63 |
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64 private IndexedLocationNode(Object identity, CiKind kind, ValueNode index, int displacement, boolean indexScalingEnabled) { |
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65 super(identity, kind, displacement); |
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66 this.index = index; |
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67 this.indexScalingEnabled = indexScalingEnabled; |
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68 } |
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69 |
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70 @Override |
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71 public ValueNode canonical(CanonicalizerTool tool) { |
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72 CiConstant constantIndex = index.asConstant(); |
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73 if (constantIndex != null && constantIndex.kind.stackKind().isInt()) { |
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74 long constantIndexLong = constantIndex.asInt(); |
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75 if (indexScalingEnabled && tool.target() != null) { |
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76 constantIndexLong *= tool.target().sizeInBytes(getValueKind()); |
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77 } |
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78 constantIndexLong += displacement(); |
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79 int constantIndexInt = (int) constantIndexLong; |
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80 if (constantIndexLong == constantIndexInt) { |
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81 return LocationNode.create(locationIdentity(), getValueKind(), constantIndexInt, graph()); |
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82 } |
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83 } |
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84 return this; |
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85 } |
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86 } |