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annotate include/llvm/Support/Compiler.h @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children e4204d083e25
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1 //===-- llvm/Support/Compiler.h - Compiler abstraction support --*- C++ -*-===//
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2 //
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3 // The LLVM Compiler Infrastructure
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4 //
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5 // This file is distributed under the University of Illinois Open Source
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6 // License. See LICENSE.TXT for details.
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7 //
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8 //===----------------------------------------------------------------------===//
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9 //
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10 // This file defines several macros, based on the current compiler. This allows
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11 // use of compiler-specific features in a way that remains portable.
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12 //
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13 //===----------------------------------------------------------------------===//
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14
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15 #ifndef LLVM_SUPPORT_COMPILER_H
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16 #define LLVM_SUPPORT_COMPILER_H
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17
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18 #include "llvm/Config/llvm-config.h"
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19
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20 #ifndef __has_feature
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21 # define __has_feature(x) 0
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22 #endif
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23
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24 #ifndef __has_attribute
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25 # define __has_attribute(x) 0
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26 #endif
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27
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28 #ifndef __has_builtin
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29 # define __has_builtin(x) 0
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30 #endif
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31
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32 /// \macro __GNUC_PREREQ
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33 /// \brief Defines __GNUC_PREREQ if glibc's features.h isn't available.
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34 #ifndef __GNUC_PREREQ
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35 # if defined(__GNUC__) && defined(__GNUC_MINOR__)
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36 # define __GNUC_PREREQ(maj, min) \
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37 ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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38 # else
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39 # define __GNUC_PREREQ(maj, min) 0
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40 # endif
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41 #endif
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42
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43 /// \brief Does the compiler support r-value references?
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44 /// This implies that <utility> provides the one-argument std::move; it
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45 /// does not imply the existence of any other C++ library features.
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46 #if (__has_feature(cxx_rvalue_references) \
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47 || defined(__GXX_EXPERIMENTAL_CXX0X__) \
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48 || (defined(_MSC_VER) && _MSC_VER >= 1600))
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49 #define LLVM_HAS_RVALUE_REFERENCES 1
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50 #else
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51 #define LLVM_HAS_RVALUE_REFERENCES 0
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52 #endif
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53
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54 /// \brief Does the compiler support r-value reference *this?
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55 ///
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56 /// Sadly, this is separate from just r-value reference support because GCC
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57 /// implemented everything but this thus far. No release of GCC yet has support
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58 /// for this feature so it is enabled with Clang only.
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59 /// FIXME: This should change to a version check when GCC grows support for it.
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60 #if __has_feature(cxx_rvalue_references)
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61 #define LLVM_HAS_RVALUE_REFERENCE_THIS 1
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62 #else
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63 #define LLVM_HAS_RVALUE_REFERENCE_THIS 0
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64 #endif
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65
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66 /// \macro LLVM_HAS_CXX11_TYPETRAITS
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67 /// \brief Does the compiler have the C++11 type traits.
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68 ///
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69 /// #include <type_traits>
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70 ///
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71 /// * enable_if
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72 /// * {true,false}_type
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73 /// * is_constructible
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74 /// * etc...
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75 #if defined(__GXX_EXPERIMENTAL_CXX0X__) \
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76 || (defined(_MSC_VER) && _MSC_VER >= 1700)
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77 #define LLVM_HAS_CXX11_TYPETRAITS 1
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78 #else
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79 #define LLVM_HAS_CXX11_TYPETRAITS 0
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80 #endif
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81
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82 /// \macro LLVM_HAS_CXX11_STDLIB
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83 /// \brief Does the compiler have the C++11 standard library.
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84 ///
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85 /// Implies LLVM_HAS_RVALUE_REFERENCES, LLVM_HAS_CXX11_TYPETRAITS
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86 #if defined(__GXX_EXPERIMENTAL_CXX0X__) \
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87 || (defined(_MSC_VER) && _MSC_VER >= 1700)
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88 #define LLVM_HAS_CXX11_STDLIB 1
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89 #else
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90 #define LLVM_HAS_CXX11_STDLIB 0
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91 #endif
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92
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93 /// \macro LLVM_HAS_VARIADIC_TEMPLATES
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94 /// \brief Does this compiler support variadic templates.
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95 ///
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96 /// Implies LLVM_HAS_RVALUE_REFERENCES and the existence of std::forward.
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97 #if __has_feature(cxx_variadic_templates)
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98 # define LLVM_HAS_VARIADIC_TEMPLATES 1
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99 #else
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100 # define LLVM_HAS_VARIADIC_TEMPLATES 0
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101 #endif
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102
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103 /// llvm_move - Expands to ::std::move if the compiler supports
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104 /// r-value references; otherwise, expands to the argument.
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105 #if LLVM_HAS_RVALUE_REFERENCES
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106 #define llvm_move(value) (::std::move(value))
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107 #else
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108 #define llvm_move(value) (value)
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109 #endif
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110
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111 /// Expands to '&' if r-value references are supported.
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112 ///
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113 /// This can be used to provide l-value/r-value overrides of member functions.
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114 /// The r-value override should be guarded by LLVM_HAS_RVALUE_REFERENCE_THIS
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115 #if LLVM_HAS_RVALUE_REFERENCE_THIS
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116 #define LLVM_LVALUE_FUNCTION &
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117 #else
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118 #define LLVM_LVALUE_FUNCTION
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119 #endif
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120
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121 /// LLVM_DELETED_FUNCTION - Expands to = delete if the compiler supports it.
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122 /// Use to mark functions as uncallable. Member functions with this should
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123 /// be declared private so that some behavior is kept in C++03 mode.
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124 ///
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125 /// class DontCopy {
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126 /// private:
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127 /// DontCopy(const DontCopy&) LLVM_DELETED_FUNCTION;
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128 /// DontCopy &operator =(const DontCopy&) LLVM_DELETED_FUNCTION;
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129 /// public:
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130 /// ...
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131 /// };
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132 #if (__has_feature(cxx_deleted_functions) \
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133 || defined(__GXX_EXPERIMENTAL_CXX0X__))
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134 // No version of MSVC currently supports this.
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135 #define LLVM_DELETED_FUNCTION = delete
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136 #else
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137 #define LLVM_DELETED_FUNCTION
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138 #endif
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139
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140 /// LLVM_FINAL - Expands to 'final' if the compiler supports it.
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diff changeset
141 /// Use to mark classes or virtual methods as final.
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diff changeset
142 #if __has_feature(cxx_override_control) \
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143 || (defined(_MSC_VER) && _MSC_VER >= 1700)
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144 #define LLVM_FINAL final
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145 #else
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146 #define LLVM_FINAL
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147 #endif
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148
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149 /// LLVM_OVERRIDE - Expands to 'override' if the compiler supports it.
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150 /// Use to mark virtual methods as overriding a base class method.
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151 #if __has_feature(cxx_override_control) \
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152 || (defined(_MSC_VER) && _MSC_VER >= 1700)
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153 #define LLVM_OVERRIDE override
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154 #else
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155 #define LLVM_OVERRIDE
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156 #endif
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157
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158 #if __has_feature(cxx_constexpr) || defined(__GXX_EXPERIMENTAL_CXX0X__)
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159 # define LLVM_CONSTEXPR constexpr
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160 #else
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diff changeset
161 # define LLVM_CONSTEXPR
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162 #endif
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diff changeset
163
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diff changeset
164 /// LLVM_LIBRARY_VISIBILITY - If a class marked with this attribute is linked
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165 /// into a shared library, then the class should be private to the library and
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166 /// not accessible from outside it. Can also be used to mark variables and
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diff changeset
167 /// functions, making them private to any shared library they are linked into.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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168 /// On PE/COFF targets, library visibility is the default, so this isn't needed.
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diff changeset
169 #if (__has_attribute(visibility) || __GNUC_PREREQ(4, 0)) && \
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diff changeset
170 !defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(LLVM_ON_WIN32)
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diff changeset
171 #define LLVM_LIBRARY_VISIBILITY __attribute__ ((visibility("hidden")))
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diff changeset
172 #else
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diff changeset
173 #define LLVM_LIBRARY_VISIBILITY
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174 #endif
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diff changeset
175
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diff changeset
176 #if __has_attribute(used) || __GNUC_PREREQ(3, 1)
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diff changeset
177 #define LLVM_ATTRIBUTE_USED __attribute__((__used__))
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178 #else
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diff changeset
179 #define LLVM_ATTRIBUTE_USED
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180 #endif
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diff changeset
181
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diff changeset
182 #if __has_attribute(warn_unused_result) || __GNUC_PREREQ(3, 4)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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diff changeset
183 #define LLVM_ATTRIBUTE_UNUSED_RESULT __attribute__((__warn_unused_result__))
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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184 #else
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185 #define LLVM_ATTRIBUTE_UNUSED_RESULT
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186 #endif
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187
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188 // Some compilers warn about unused functions. When a function is sometimes
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diff changeset
189 // used or not depending on build settings (e.g. a function only called from
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diff changeset
190 // within "assert"), this attribute can be used to suppress such warnings.
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191 //
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192 // However, it shouldn't be used for unused *variables*, as those have a much
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diff changeset
193 // more portable solution:
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diff changeset
194 // (void)unused_var_name;
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diff changeset
195 // Prefer cast-to-void wherever it is sufficient.
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196 #if __has_attribute(unused) || __GNUC_PREREQ(3, 1)
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197 #define LLVM_ATTRIBUTE_UNUSED __attribute__((__unused__))
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diff changeset
198 #else
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199 #define LLVM_ATTRIBUTE_UNUSED
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200 #endif
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diff changeset
201
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parents:
diff changeset
202 // FIXME: Provide this for PE/COFF targets.
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diff changeset
203 #if (__has_attribute(weak) || __GNUC_PREREQ(4, 0)) && \
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diff changeset
204 (!defined(__MINGW32__) && !defined(__CYGWIN__) && !defined(LLVM_ON_WIN32))
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diff changeset
205 #define LLVM_ATTRIBUTE_WEAK __attribute__((__weak__))
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diff changeset
206 #else
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parents:
diff changeset
207 #define LLVM_ATTRIBUTE_WEAK
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diff changeset
208 #endif
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diff changeset
209
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diff changeset
210 // Prior to clang 3.2, clang did not accept any spelling of
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diff changeset
211 // __has_attribute(const), so assume it is supported.
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diff changeset
212 #if defined(__clang__) || defined(__GNUC__)
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diff changeset
213 // aka 'CONST' but following LLVM Conventions.
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diff changeset
214 #define LLVM_READNONE __attribute__((__const__))
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parents:
diff changeset
215 #else
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parents:
diff changeset
216 #define LLVM_READNONE
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diff changeset
217 #endif
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diff changeset
218
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diff changeset
219 #if __has_attribute(pure) || defined(__GNUC__)
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diff changeset
220 // aka 'PURE' but following LLVM Conventions.
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parents:
diff changeset
221 #define LLVM_READONLY __attribute__((__pure__))
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diff changeset
222 #else
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parents:
diff changeset
223 #define LLVM_READONLY
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diff changeset
224 #endif
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parents:
diff changeset
225
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parents:
diff changeset
226 #if __has_builtin(__builtin_expect) || __GNUC_PREREQ(4, 0)
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parents:
diff changeset
227 #define LLVM_LIKELY(EXPR) __builtin_expect((bool)(EXPR), true)
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parents:
diff changeset
228 #define LLVM_UNLIKELY(EXPR) __builtin_expect((bool)(EXPR), false)
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parents:
diff changeset
229 #else
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parents:
diff changeset
230 #define LLVM_LIKELY(EXPR) (EXPR)
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parents:
diff changeset
231 #define LLVM_UNLIKELY(EXPR) (EXPR)
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parents:
diff changeset
232 #endif
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parents:
diff changeset
233
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parents:
diff changeset
234 // C++ doesn't support 'extern template' of template specializations. GCC does,
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
235 // but requires __extension__ before it. In the header, use this:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
236 // EXTERN_TEMPLATE_INSTANTIATION(class foo<bar>);
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
237 // in the .cpp file, use this:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
238 // TEMPLATE_INSTANTIATION(class foo<bar>);
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
239 #ifdef __GNUC__
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parents:
diff changeset
240 #define EXTERN_TEMPLATE_INSTANTIATION(X) __extension__ extern template X
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
241 #define TEMPLATE_INSTANTIATION(X) template X
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
242 #else
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
243 #define EXTERN_TEMPLATE_INSTANTIATION(X)
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parents:
diff changeset
244 #define TEMPLATE_INSTANTIATION(X)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
245 #endif
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
246
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parents:
diff changeset
247 /// LLVM_ATTRIBUTE_NOINLINE - On compilers where we have a directive to do so,
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parents:
diff changeset
248 /// mark a method "not for inlining".
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
249 #if __has_attribute(noinline) || __GNUC_PREREQ(3, 4)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
250 #define LLVM_ATTRIBUTE_NOINLINE __attribute__((noinline))
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
251 #elif defined(_MSC_VER)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
252 #define LLVM_ATTRIBUTE_NOINLINE __declspec(noinline)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
253 #else
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
254 #define LLVM_ATTRIBUTE_NOINLINE
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
255 #endif
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parents:
diff changeset
256
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diff changeset
257 /// LLVM_ATTRIBUTE_ALWAYS_INLINE - On compilers where we have a directive to do
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parents:
diff changeset
258 /// so, mark a method "always inline" because it is performance sensitive. GCC
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parents:
diff changeset
259 /// 3.4 supported this but is buggy in various cases and produces unimplemented
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parents:
diff changeset
260 /// errors, just use it in GCC 4.0 and later.
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parents:
diff changeset
261 #if __has_attribute(always_inline) || __GNUC_PREREQ(4, 0)
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parents:
diff changeset
262 #define LLVM_ATTRIBUTE_ALWAYS_INLINE inline __attribute__((always_inline))
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parents:
diff changeset
263 #elif defined(_MSC_VER)
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parents:
diff changeset
264 #define LLVM_ATTRIBUTE_ALWAYS_INLINE __forceinline
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
265 #else
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diff changeset
266 #define LLVM_ATTRIBUTE_ALWAYS_INLINE
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parents:
diff changeset
267 #endif
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parents:
diff changeset
268
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diff changeset
269 #ifdef __GNUC__
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270 #define LLVM_ATTRIBUTE_NORETURN __attribute__((noreturn))
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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diff changeset
271 #elif defined(_MSC_VER)
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diff changeset
272 #define LLVM_ATTRIBUTE_NORETURN __declspec(noreturn)
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diff changeset
273 #else
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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diff changeset
274 #define LLVM_ATTRIBUTE_NORETURN
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diff changeset
275 #endif
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diff changeset
276
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277 /// LLVM_EXTENSION - Support compilers where we have a keyword to suppress
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parents:
diff changeset
278 /// pedantic diagnostics.
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parents:
diff changeset
279 #ifdef __GNUC__
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diff changeset
280 #define LLVM_EXTENSION __extension__
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diff changeset
281 #else
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282 #define LLVM_EXTENSION
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283 #endif
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diff changeset
284
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285 // LLVM_ATTRIBUTE_DEPRECATED(decl, "message")
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diff changeset
286 #if __has_feature(attribute_deprecated_with_message)
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diff changeset
287 # define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
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diff changeset
288 decl __attribute__((deprecated(message)))
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diff changeset
289 #elif defined(__GNUC__)
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diff changeset
290 # define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
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diff changeset
291 decl __attribute__((deprecated))
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
292 #elif defined(_MSC_VER)
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diff changeset
293 # define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
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diff changeset
294 __declspec(deprecated(message)) decl
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diff changeset
295 #else
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diff changeset
296 # define LLVM_ATTRIBUTE_DEPRECATED(decl, message) \
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diff changeset
297 decl
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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diff changeset
298 #endif
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parents:
diff changeset
299
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diff changeset
300 /// LLVM_BUILTIN_UNREACHABLE - On compilers which support it, expands
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
301 /// to an expression which states that it is undefined behavior for the
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
302 /// compiler to reach this point. Otherwise is not defined.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
303 #if __has_builtin(__builtin_unreachable) || __GNUC_PREREQ(4, 5)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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diff changeset
304 # define LLVM_BUILTIN_UNREACHABLE __builtin_unreachable()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
305 #elif defined(_MSC_VER)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
306 # define LLVM_BUILTIN_UNREACHABLE __assume(false)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
307 #endif
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
308
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parents:
diff changeset
309 /// LLVM_BUILTIN_TRAP - On compilers which support it, expands to an expression
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
310 /// which causes the program to exit abnormally.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
311 #if __has_builtin(__builtin_trap) || __GNUC_PREREQ(4, 3)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
312 # define LLVM_BUILTIN_TRAP __builtin_trap()
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
313 #else
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
314 # define LLVM_BUILTIN_TRAP *(volatile int*)0x11 = 0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
315 #endif
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
316
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parents:
diff changeset
317 /// \macro LLVM_ASSUME_ALIGNED
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parents:
diff changeset
318 /// \brief Returns a pointer with an assumed alignment.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
319 #if __has_builtin(__builtin_assume_aligned) && __GNUC_PREREQ(4, 7)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
320 # define LLVM_ASSUME_ALIGNED(p, a) __builtin_assume_aligned(p, a)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
321 #elif defined(LLVM_BUILTIN_UNREACHABLE)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
322 // As of today, clang does not support __builtin_assume_aligned.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
323 # define LLVM_ASSUME_ALIGNED(p, a) \
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
324 (((uintptr_t(p) % (a)) == 0) ? (p) : (LLVM_BUILTIN_UNREACHABLE, (p)))
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
325 #else
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
326 # define LLVM_ASSUME_ALIGNED(p, a) (p)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
327 #endif
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
328
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
329 /// \macro LLVM_FUNCTION_NAME
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
330 /// \brief Expands to __func__ on compilers which support it. Otherwise,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
331 /// expands to a compiler-dependent replacement.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
332 #if defined(_MSC_VER)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
333 # define LLVM_FUNCTION_NAME __FUNCTION__
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
334 #else
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
335 # define LLVM_FUNCTION_NAME __func__
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
336 #endif
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
337
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
338 #if defined(HAVE_SANITIZER_MSAN_INTERFACE_H)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
339 # include <sanitizer/msan_interface.h>
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
340 #else
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
341 # define __msan_allocated_memory(p, size)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
342 # define __msan_unpoison(p, size)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
343 #endif
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
344
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
345 /// \macro LLVM_MEMORY_SANITIZER_BUILD
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
346 /// \brief Whether LLVM itself is built with MemorySanitizer instrumentation.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
347 #if __has_feature(memory_sanitizer)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
348 # define LLVM_MEMORY_SANITIZER_BUILD 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
349 #else
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
350 # define LLVM_MEMORY_SANITIZER_BUILD 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
351 #endif
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
352
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
353 /// \macro LLVM_ADDRESS_SANITIZER_BUILD
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
354 /// \brief Whether LLVM itself is built with AddressSanitizer instrumentation.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
355 #if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
356 # define LLVM_ADDRESS_SANITIZER_BUILD 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
357 #else
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
358 # define LLVM_ADDRESS_SANITIZER_BUILD 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
359 #endif
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
360
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
361 /// \macro LLVM_IS_UNALIGNED_ACCESS_FAST
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
362 /// \brief Is unaligned memory access fast on the host machine.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
363 ///
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
364 /// Don't specialize on alignment for platforms where unaligned memory accesses
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
365 /// generates the same code as aligned memory accesses for common types.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
366 #if defined(_M_AMD64) || defined(_M_IX86) || defined(__amd64) || \
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
367 defined(__amd64__) || defined(__x86_64) || defined(__x86_64__) || \
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
368 defined(_X86_) || defined(__i386) || defined(__i386__)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
369 # define LLVM_IS_UNALIGNED_ACCESS_FAST 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
370 #else
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
371 # define LLVM_IS_UNALIGNED_ACCESS_FAST 0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
372 #endif
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
373
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
374 /// \macro LLVM_EXPLICIT
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
375 /// \brief Expands to explicit on compilers which support explicit conversion
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
376 /// operators. Otherwise expands to nothing.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
377 #if (__has_feature(cxx_explicit_conversions) \
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
378 || defined(__GXX_EXPERIMENTAL_CXX0X__))
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
379 #define LLVM_EXPLICIT explicit
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
380 #else
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
381 #define LLVM_EXPLICIT
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
382 #endif
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
diff changeset
383
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384 /// \macro LLVM_STATIC_ASSERT
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385 /// \brief Expands to C/C++'s static_assert on compilers which support it.
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386 #if __has_feature(cxx_static_assert)
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387 # define LLVM_STATIC_ASSERT(expr, msg) static_assert(expr, msg)
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388 #elif __has_feature(c_static_assert)
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389 # define LLVM_STATIC_ASSERT(expr, msg) _Static_assert(expr, msg)
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390 #else
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391 # define LLVM_STATIC_ASSERT(expr, msg)
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392 #endif
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393
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394 /// \macro LLVM_ENUM_INT_TYPE
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395 /// \brief Expands to colon followed by the given integral type on compilers
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396 /// which support C++11 strong enums. This can be used to make enums unsigned
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397 /// with MSVC.
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398 #if __has_feature(cxx_strong_enums)
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399 # define LLVM_ENUM_INT_TYPE(intty) : intty
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400 #elif defined(_MSC_VER) && _MSC_VER >= 1600 // Added in MSVC 2010.
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401 # define LLVM_ENUM_INT_TYPE(intty) : intty
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402 #else
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403 # define LLVM_ENUM_INT_TYPE(intty)
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404 #endif
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405
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406 /// \brief Does the compiler support generalized initializers (using braced
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407 /// lists and std::initializer_list).
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408 #if __has_feature(cxx_generalized_initializers)
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409 #define LLVM_HAS_INITIALIZER_LISTS 1
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410 #else
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411 #define LLVM_HAS_INITIALIZER_LISTS 0
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412 #endif
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413
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414 #endif