Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CompilerAsserts.java @ 9810:b49fdcee6cb0
Merge
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Thu, 23 May 2013 14:44:01 +0200 |
parents | 8f540423a5be |
children | 494b818b527c |
rev | line source |
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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 } |