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annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotProxy.java @ 1479:71cd4b9610eb
Two fixes for DaCapo / SpecJVM2008 runs.
author | Thomas Wuerthinger <wuerthinger@ssw.jku.at> |
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date | Sat, 27 Nov 2010 14:30:07 +0100 |
parents | 9e5e83ca2259 |
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1 /* |
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2 * Copyright (c) 2010 Sun Microsystems, Inc. All rights reserved. |
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3 * |
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4 * Sun Microsystems, Inc. has intellectual property rights relating to technology embodied in the product |
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5 * that is described in this document. In particular, and without limitation, these intellectual property |
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6 * rights may include one or more of the U.S. patents listed at http://www.sun.com/patents and one or |
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7 * more additional patents or pending patent applications in the U.S. and in other countries. |
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8 * |
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9 * U.S. Government Rights - Commercial software. Government users are subject to the Sun |
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10 * Microsystems, Inc. standard license agreement and applicable provisions of the FAR and its |
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11 * supplements. |
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12 * |
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13 * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or |
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14 * registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks |
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15 * are used under license and are trademarks or registered trademarks of SPARC International, Inc. in the |
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16 * U.S. and other countries. |
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17 * |
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18 * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open |
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19 * Company, Ltd. |
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20 */ |
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21 package com.sun.hotspot.c1x; |
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22 |
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23 /** |
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24 * Provides methods to classify the HotSpot-internal identifiers. |
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25 * |
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26 * @author Lukas Stadler |
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27 */ |
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28 public final class HotSpotProxy { |
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29 |
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30 private HotSpotProxy() { |
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31 } |
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32 |
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33 private enum CompilerObjectType { |
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34 // this enum needs to have the same values as the one in c1x_Compiler.hpp |
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35 STUB(0x100000000000000L), |
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36 METHOD(0x200000000000000L), |
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37 CLASS(0x300000000000000L), |
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38 SYMBOL(0x400000000000000L), |
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39 CONSTANT_POOL(0x500000000000000L), |
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40 CONSTANT(0x600000000000000L), |
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41 TYPE_MASK(0xf00000000000000L), |
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42 DUMMY_CONSTANT(0x6ffffffffffffffL); |
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43 |
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44 public final long bits; |
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45 |
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46 CompilerObjectType(long bits) { |
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47 this.bits = bits; |
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48 } |
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49 } |
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50 |
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51 public static final Long DUMMY_CONSTANT_OBJ = CompilerObjectType.DUMMY_CONSTANT.bits; |
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52 |
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53 private static boolean isType(long id, CompilerObjectType type) { |
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54 return (id & CompilerObjectType.TYPE_MASK.bits) == type.bits; |
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55 } |
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56 |
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57 public static boolean isStub(long id) { |
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58 return isType(id, CompilerObjectType.STUB); |
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59 } |
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60 |
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61 public static boolean isMethod(long id) { |
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62 return isType(id, CompilerObjectType.METHOD); |
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63 } |
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64 |
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65 public static boolean isClass(long id) { |
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66 return isType(id, CompilerObjectType.CLASS); |
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67 } |
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68 |
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69 public static boolean isSymbol(long id) { |
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70 return isType(id, CompilerObjectType.SYMBOL); |
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71 } |
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72 |
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73 public static boolean isConstantPool(long id) { |
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74 return isType(id, CompilerObjectType.CONSTANT_POOL); |
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75 } |
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76 |
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77 public static boolean isConstant(long id) { |
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78 return isType(id, CompilerObjectType.CONSTANT_POOL); |
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79 } |
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80 |
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81 public static String toString(long id) { |
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82 CompilerObjectType type = null; |
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83 for (CompilerObjectType t : CompilerObjectType.values()) { |
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84 if ((id & CompilerObjectType.TYPE_MASK.bits) == t.bits) { |
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85 type = t; |
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86 } |
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87 } |
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88 long num = id & ~CompilerObjectType.TYPE_MASK.bits; |
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89 return type + " " + num; |
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90 } |
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91 |
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92 } |