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annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CompilerAsserts.java @ 10090:ae6f0c381087

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split MemoryCheckpoint interface into Single and Multi
author Lukas Stadler <lukas.stadler@jku.at>
date Wed, 19 Jun 2013 16:42:56 +0200
parents 8f540423a5be
children 494b818b527c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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8f540423a5be Added two new classes to the Truffle API: CompilerDirectives and CompilerAsserts.
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1 /*
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2 * Copyright (c) 2013, 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.truffle.api;
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24
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25 /**
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26 * Assertions about the code produced by the Truffle compiler. All operations have no effect when
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27 * either executed in the interpreter or in the compiled code. The assertions are checked during
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28 * code generation and the Truffle compiler produces for failing assertions a stack trace that
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29 * identifies the code position of the assertion in the context of the current compilation.
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30 *
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31 */
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32 public class CompilerAsserts {
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33
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34 /**
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35 * Assertion that this code position should never be reached during compilation. It can be used
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36 * for exceptional code paths or rare code paths that should never be included in a compilation
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37 * unit. See {@link CompilerDirectives#transferToInterpreter()} for the corresponding compiler
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38 * directive.
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39 */
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40 public static void neverPartOfCompilation() {
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41 }
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42
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43 /**
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44 * Assertion that the corresponding value is reduced to a constant during compilation.
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45 *
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46 * @param value the value that must be constant during compilation
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47 * @return the value given as parameter
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48 */
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49 public static boolean compilationConstant(boolean value) {
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50 return value;
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51 }
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52
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53 /**
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54 * Assertion that the corresponding value is reduced to a constant during compilation.
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55 *
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56 * @param value the value that must be constant during compilation
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57 * @return the value given as parameter
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58 */
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59 public static byte compilationConstant(byte value) {
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60 return value;
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61 }
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62
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63 /**
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64 * Assertion that the corresponding value is reduced to a constant during compilation.
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65 *
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66 * @param value the value that must be constant during compilation
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67 * @return the value given as parameter
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68 */
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69 public static char compilationConstant(char value) {
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70 return value;
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71 }
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72
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73 /**
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74 * Assertion that the corresponding value is reduced to a constant during compilation.
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75 *
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76 * @param value the value that must be constant during compilation
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77 * @return the value given as parameter
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78 */
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79 public static short compilationConstant(short value) {
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80 return value;
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81 }
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82
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83 /**
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84 * Assertion that the corresponding value is reduced to a constant during compilation.
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85 *
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86 * @param value the value that must be constant during compilation
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87 * @return the value given as parameter
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88 */
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89 public static int compilationConstant(int value) {
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90 return value;
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91 }
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92
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93 /**
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94 * Assertion that the corresponding value is reduced to a constant during compilation.
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95 *
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96 * @param value the value that must be constant during compilation
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97 * @return the value given as parameter
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98 */
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99 public static long compilationConstant(long value) {
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100 return value;
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101 }
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102
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103 /**
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104 * Assertion that the corresponding value is reduced to a constant during compilation.
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105 *
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106 * @param value the value that must be constant during compilation
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107 * @return the value given as parameter
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108 */
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109 public static float compilationConstant(float value) {
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110 return value;
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111 }
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112
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113 /**
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114 * Assertion that the corresponding value is reduced to a constant during compilation.
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115 *
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116 * @param value the value that must be constant during compilation
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117 * @return the value given as parameter
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118 */
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119 public static double compilationConstant(double value) {
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120 return value;
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121 }
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122
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123 /**
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124 * Assertion that the corresponding value is reduced to a constant during compilation.
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125 *
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126 * @param value the value that must be constant during compilation
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127 * @return the value given as parameter
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128 */
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129 public static Object compilationConstant(Object value) {
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130 return value;
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131 }
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132 }