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annotate graal/com.oracle.graal.api.code/src/com/oracle/graal/api/code/RuntimeCallTarget.java @ 7814:bab2a51f8dbe

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Introduce marker interface InvokeTarget. Remove method lookupRuntimeCall from CodeCacheProvider.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Mon, 18 Feb 2013 20:21:09 -0800
parents 5e3d1a68664e
children 1fa6536416db
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1 /*
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2 * Copyright (c) 2009, 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.api.code;
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24
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25 import java.util.*;
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26
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27 import com.oracle.graal.api.meta.*;
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28
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29 /**
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30 * The name, signature and calling convention of a call from compiled code to the runtime. The
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31 * target of such a call may be a leaf stub or a call into the runtime code proper.
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32 */
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33 public interface RuntimeCallTarget extends InvokeTarget {
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34
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35 /**
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36 * The name and signature of a runtime call.
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37 */
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38 public static class Descriptor {
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39
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40 private final String name;
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41 private final boolean hasSideEffect;
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42 private final Class resultType;
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43 private final Class[] argumentTypes;
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44
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45 public Descriptor(String name, boolean hasSideEffect, Class resultType, Class... argumentTypes) {
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46 this.name = name;
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47 this.hasSideEffect = hasSideEffect;
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48 this.resultType = resultType;
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49 this.argumentTypes = argumentTypes;
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50 }
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51
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52 /**
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53 * Gets the name of this runtime call.
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54 */
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55 public String getName() {
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56 return name;
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57 }
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58
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59 /**
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60 * Determines if this call changes state visible to other threads. Such calls denote
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61 * boundaries across which deoptimization points cannot be moved.
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62 */
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63 public boolean hasSideEffect() {
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64 return hasSideEffect;
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65 }
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66
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67 /**
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68 * Gets the return kind of this runtime call.
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69 */
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70 public Class getResultType() {
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71 return resultType;
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72 }
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73
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74 /**
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75 * Gets the argument kinds of this runtime call.
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76 */
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77 public Class[] getArgumentTypes() {
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78 return argumentTypes.clone();
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79 }
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80
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81 @Override
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82 public int hashCode() {
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83 return name.hashCode();
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84 }
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85
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86 @Override
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87 public boolean equals(Object obj) {
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88 if (obj instanceof Descriptor) {
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89 Descriptor nas = (Descriptor) obj;
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90 return nas.name.equals(name) && nas.resultType.equals(resultType) && Arrays.equals(nas.argumentTypes, argumentTypes);
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91 }
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92 return false;
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93 }
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94
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95 @Override
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96 public String toString() {
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97 StringBuilder sb = new StringBuilder(name).append('(');
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98 String sep = "";
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99 for (Class arg : argumentTypes) {
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100 sb.append(sep).append(arg.getSimpleName());
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101 sep = ",";
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102 }
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103 return sb.append(')').append(resultType.getSimpleName()).toString();
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104 }
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105 }
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106
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107 CallingConvention getCallingConvention();
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108
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109 /**
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110 * Returns the maximum absolute offset of PC relative call to this stub from any position in the
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111 * code cache or -1 when not applicable. Intended for determining the required size of
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112 * address/offset fields.
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113 */
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114 long getMaxCallTargetOffset();
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115
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116 Descriptor getDescriptor();
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117 }