Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.api/src/com/oracle/truffle/api/CompilerAsserts.java @ 15222:58d2c5bdb9cd
Truffle: Add option TruffleReturnTypeSpeculation.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Fri, 18 Apr 2014 02:00:24 +0200 |
parents | 494b818b527c |
children | da9b9b625818 |
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. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 package com.oracle.truffle.api; |
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26 |
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27 /** |
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28 * Assertions about the code produced by the Truffle compiler. All operations have no effect when |
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29 * either executed in the interpreter or in the compiled code. The assertions are checked during |
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30 * code generation and the Truffle compiler produces for failing assertions a stack trace that |
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31 * identifies the code position of the assertion in the context of the current compilation. |
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32 * |
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33 */ |
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34 public class CompilerAsserts { |
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35 |
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36 /** |
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37 * Assertion that this code position should never be reached during compilation. It can be used |
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38 * for exceptional code paths or rare code paths that should never be included in a compilation |
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39 * unit. See {@link CompilerDirectives#transferToInterpreter()} for the corresponding compiler |
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40 * directive. |
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41 */ |
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42 public static void neverPartOfCompilation() { |
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43 } |
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44 |
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45 /** |
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46 * Assertion that the corresponding value is reduced to a constant during compilation. |
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47 * |
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48 * @param value the value that must be constant during compilation |
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49 * @return the value given as parameter |
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50 */ |
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51 public static boolean compilationConstant(boolean value) { |
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52 return value; |
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53 } |
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54 |
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55 /** |
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56 * Assertion that the corresponding value is reduced to a constant during compilation. |
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57 * |
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58 * @param value the value that must be constant during compilation |
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59 * @return the value given as parameter |
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60 */ |
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61 public static byte compilationConstant(byte value) { |
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62 return value; |
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63 } |
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64 |
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65 /** |
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66 * Assertion that the corresponding value is reduced to a constant during compilation. |
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67 * |
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68 * @param value the value that must be constant during compilation |
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69 * @return the value given as parameter |
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70 */ |
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71 public static char compilationConstant(char value) { |
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72 return value; |
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73 } |
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74 |
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75 /** |
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76 * Assertion that the corresponding value is reduced to a constant during compilation. |
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77 * |
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78 * @param value the value that must be constant during compilation |
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79 * @return the value given as parameter |
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80 */ |
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81 public static short compilationConstant(short value) { |
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82 return value; |
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83 } |
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84 |
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85 /** |
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86 * Assertion that the corresponding value is reduced to a constant during compilation. |
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87 * |
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88 * @param value the value that must be constant during compilation |
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89 * @return the value given as parameter |
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90 */ |
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91 public static int compilationConstant(int value) { |
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92 return value; |
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93 } |
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94 |
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95 /** |
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96 * Assertion that the corresponding value is reduced to a constant during compilation. |
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97 * |
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98 * @param value the value that must be constant during compilation |
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99 * @return the value given as parameter |
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100 */ |
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101 public static long compilationConstant(long value) { |
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102 return value; |
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103 } |
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104 |
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105 /** |
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106 * Assertion that the corresponding value is reduced to a constant during compilation. |
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107 * |
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108 * @param value the value that must be constant during compilation |
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109 * @return the value given as parameter |
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110 */ |
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111 public static float compilationConstant(float value) { |
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112 return value; |
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113 } |
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114 |
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115 /** |
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116 * Assertion that the corresponding value is reduced to a constant during compilation. |
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117 * |
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118 * @param value the value that must be constant during compilation |
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119 * @return the value given as parameter |
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120 */ |
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121 public static double compilationConstant(double value) { |
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122 return value; |
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123 } |
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124 |
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125 /** |
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126 * Assertion that the corresponding value is reduced to a constant during compilation. |
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127 * |
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128 * @param value the value that must be constant during compilation |
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129 * @return the value given as parameter |
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130 */ |
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131 public static Object compilationConstant(Object value) { |
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132 return value; |
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133 } |
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134 } |