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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/jvmci/HotSpotMethodDataAccessor.java @ 21539:d3002f7bd223

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renamed com.oracle.graal.service.processor to com.oracle.jvmci.runtime.processor (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Mon, 25 May 2015 17:34:32 +0200
parents 1da7aef31a08
children
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1 /*
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2 * Copyright (c) 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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1da7aef31a08 created com.oracle.graal.hotspot.jvmci package and moved classes destined for future JVMCI module into it (JBS:GRAAL-53)
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23 package com.oracle.graal.hotspot.jvmci;
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24
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25 import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*;
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26
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27 import com.oracle.graal.api.meta.*;
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29 /**
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30 * Interface for accessor objects that encapsulate the logic for accessing the different kinds of
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31 * data in a HotSpot methodDataOop. This interface is similar to the interface {@link ProfilingInfo}
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32 * , but most methods require a MethodDataObject and the exact position within the methodData.
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33 */
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34 public interface HotSpotMethodDataAccessor {
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35
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36 /**
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37 * {@code DataLayout} tag values.
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38 */
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39 enum Tag {
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40 No(config().dataLayoutNoTag),
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41 BitData(config().dataLayoutBitDataTag),
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42 CounterData(config().dataLayoutCounterDataTag),
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43 JumpData(config().dataLayoutJumpDataTag),
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44 ReceiverTypeData(config().dataLayoutReceiverTypeDataTag),
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45 VirtualCallData(config().dataLayoutVirtualCallDataTag),
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46 RetData(config().dataLayoutRetDataTag),
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47 BranchData(config().dataLayoutBranchDataTag),
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48 MultiBranchData(config().dataLayoutMultiBranchDataTag),
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49 ArgInfoData(config().dataLayoutArgInfoDataTag),
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50 CallTypeData(config().dataLayoutCallTypeDataTag),
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51 VirtualCallTypeData(config().dataLayoutVirtualCallTypeDataTag),
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52 ParametersTypeData(config().dataLayoutParametersTypeDataTag),
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53 SpeculativeTrapData(config().dataLayoutSpeculativeTrapDataTag);
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54
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55 private final int value;
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56
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57 private Tag(int value) {
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58 this.value = value;
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59 }
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60
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61 public int getValue() {
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62 return value;
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63 }
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64
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65 private static HotSpotVMConfig config() {
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66 return runtime().getConfig();
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67 }
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68
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69 public static Tag getEnum(int value) {
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70 Tag result = values()[value];
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71 assert value == result.value;
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72 return result;
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73 }
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74 }
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75
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76 /**
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77 * Returns the {@link Tag} stored in the LayoutData header.
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78 *
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79 * @return tag stored in the LayoutData header
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80 */
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81 Tag getTag();
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82
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83 /**
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84 * Returns the BCI stored in the LayoutData header.
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85 *
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86 * @return An integer &ge; 0 and &le; Short.MAX_VALUE, or -1 if not supported.
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87 */
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88 int getBCI(HotSpotMethodData data, int position);
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89
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90 /**
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91 * Computes the size for the specific data at the given position.
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92 *
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93 * @return An integer &gt; 0.
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94 */
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95 int getSize(HotSpotMethodData data, int position);
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96
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97 JavaTypeProfile getTypeProfile(HotSpotMethodData data, int position);
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98
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99 JavaMethodProfile getMethodProfile(HotSpotMethodData data, int position);
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100
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101 double getBranchTakenProbability(HotSpotMethodData data, int position);
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102
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103 double[] getSwitchProbabilities(HotSpotMethodData data, int position);
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104
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105 TriState getExceptionSeen(HotSpotMethodData data, int position);
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106
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107 TriState getNullSeen(HotSpotMethodData data, int position);
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108
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109 int getExecutionCount(HotSpotMethodData data, int position);
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110
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111 StringBuilder appendTo(StringBuilder sb, HotSpotMethodData data, int pos);
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112 }