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annotate c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotConstantPool.java @ 1434:72cfb36c6bb2

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* enabled all jtt tests * added proxy that counts jni calls * honor hotspot stackshadowpages * constant pool caching * monitor enter/exit * arithmetic stubs (frem, drem, ...) * create stack values for debug info * some doc
author Lukas Stadler <lukas.stadler@oracle.com>
date Thu, 30 Sep 2010 17:19:48 -0700
parents 760213a60e8b
children 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 that is
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5 * described in this document. In particular, and without limitation, these intellectual property rights may include one
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6 * or more of the U.S. patents listed at http://www.sun.com/patents and one or more additional patents or pending patent
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7 * 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 Microsystems, Inc. standard
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10 * license agreement and applicable provisions of the FAR and its supplements.
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11 *
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12 * Use is subject to license terms. Sun, Sun Microsystems, the Sun logo, Java and Solaris are trademarks or registered
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13 * trademarks of Sun Microsystems, Inc. in the U.S. and other countries. All SPARC trademarks are used under license and
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14 * are trademarks or registered trademarks of SPARC International, Inc. in the U.S. and other countries.
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15 *
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16 * UNIX is a registered trademark in the U.S. and other countries, exclusively licensed through X/Open Company, Ltd.
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17 */
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18 package com.sun.hotspot.c1x;
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19
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20 import java.util.*;
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21
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22 import com.sun.cri.ci.*;
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23 import com.sun.cri.ri.*;
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25 /**
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26 * Implementation of RiConstantPool for HotSpot.
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27 *
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28 * @author Thomas Wuerthinger, Lukas Stadler
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29 */
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30 public class HotSpotConstantPool implements RiConstantPool, CompilerObject {
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31
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32 long vmId;
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33 HashMap<Integer, Object> cache = new HashMap<Integer, Object>();
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34
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35 public HotSpotConstantPool(long vmId) {
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36 this.vmId = vmId;
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37 }
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38
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39 @Override
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40 public CiConstant encoding() {
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41 // TODO: Check if this is correct.
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42 return CiConstant.forObject(vmId);
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43 }
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44
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45 @Override
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46 public Object lookupConstant(int cpi) {
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47 Object value = cache.get(cpi);
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48 if (value == null) {
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49 value = Compiler.getVMEntries().RiConstantPool_lookupConstant(vmId, cpi);
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50 cache.put(cpi, value);
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51 }
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52 return value;
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53 }
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55 @Override
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56 public RiMethod lookupMethod(int cpi, int byteCode) {
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57 RiMethod value = (RiMethod) cache.get(cpi);
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58 if (value == null) {
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59 value = Compiler.getVMEntries().RiConstantPool_lookupMethod(vmId, cpi, (byte) byteCode);
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60 cache.put(cpi, value);
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61 }
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62 return value;
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63 }
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64
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65 @Override
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66 public RiSignature lookupSignature(int cpi) {
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67 RiSignature value = (RiSignature) cache.get(cpi);
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68 if (value == null) {
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69 value = Compiler.getVMEntries().RiConstantPool_lookupSignature(vmId, cpi);
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70 cache.put(cpi, value);
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71 }
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72 return value;
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73 }
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75 @Override
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76 public RiType lookupType(int cpi, int opcode) {
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77 RiType value = (RiType) cache.get(cpi);
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78 if (value == null) {
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79 value = Compiler.getVMEntries().RiConstantPool_lookupType(vmId, cpi);
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80 cache.put(cpi, value);
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81 }
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82 return value;
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83 }
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85 @Override
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86 public RiField lookupField(int cpi, int opcode) {
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87 RiField value = (RiField) cache.get(cpi);
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88 if (value == null) {
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89 value = Compiler.getVMEntries().RiConstantPool_lookupField(vmId, cpi);
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90 cache.put(cpi, value);
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91 }
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92 return value;
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93 }
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95 }