1 /* |
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2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright 2009, 2010 Red Hat, Inc. |
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * |
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6 * This code is free software; you can redistribute it and/or modify it |
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7 * under the terms of the GNU General Public License version 2 only, as |
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8 * published by the Free Software Foundation. |
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9 * |
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10 * This code is distributed in the hope that it will be useful, but WITHOUT |
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 * version 2 for more details (a copy is included in the LICENSE file that |
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14 * accompanied this code). |
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15 * |
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16 * You should have received a copy of the GNU General Public License version |
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17 * 2 along with this work; if not, write to the Free Software Foundation, |
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 * |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
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23 * |
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24 */ |
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25 |
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26 #ifndef SHARE_VM_SHARK_SHARKCONTEXT_HPP |
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27 #define SHARE_VM_SHARK_SHARKCONTEXT_HPP |
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28 |
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29 #include "shark/llvmHeaders.hpp" |
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30 #include "shark/sharkCompiler.hpp" |
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31 |
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32 // The LLVMContext class allows multiple instances of LLVM to operate |
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33 // independently of each other in a multithreaded context. We extend |
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34 // this here to store things in Shark that are LLVMContext-specific. |
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35 |
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36 class SharkFreeQueueItem; |
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37 |
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38 class SharkContext : public llvm::LLVMContext { |
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39 public: |
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40 SharkContext(const char* name); |
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41 |
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42 private: |
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43 llvm::Module* _module; |
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44 |
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45 public: |
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46 llvm::Module* module() const { |
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47 return _module; |
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48 } |
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49 |
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50 // Get this thread's SharkContext |
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51 public: |
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52 static SharkContext& current() { |
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53 return *SharkCompiler::compiler()->context(); |
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54 } |
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55 |
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56 // Module accessors |
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57 public: |
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58 void add_function(llvm::Function* function) const { |
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59 module()->getFunctionList().push_back(function); |
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60 } |
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61 llvm::Constant* get_external(const char* name, |
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62 llvm::FunctionType* sig) { |
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63 return module()->getOrInsertFunction(name, sig); |
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64 } |
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65 |
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66 // Basic types |
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67 private: |
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68 llvm::Type* _void_type; |
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69 llvm::IntegerType* _bit_type; |
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70 llvm::IntegerType* _jbyte_type; |
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71 llvm::IntegerType* _jshort_type; |
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72 llvm::IntegerType* _jint_type; |
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73 llvm::IntegerType* _jlong_type; |
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74 llvm::Type* _jfloat_type; |
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75 llvm::Type* _jdouble_type; |
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76 |
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77 public: |
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78 llvm::Type* void_type() const { |
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79 return _void_type; |
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80 } |
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81 llvm::IntegerType* bit_type() const { |
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82 return _bit_type; |
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83 } |
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84 llvm::IntegerType* jbyte_type() const { |
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85 return _jbyte_type; |
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86 } |
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87 llvm::IntegerType* jshort_type() const { |
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88 return _jshort_type; |
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89 } |
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90 llvm::IntegerType* jint_type() const { |
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91 return _jint_type; |
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92 } |
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93 llvm::IntegerType* jlong_type() const { |
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94 return _jlong_type; |
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95 } |
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96 llvm::Type* jfloat_type() const { |
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97 return _jfloat_type; |
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98 } |
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99 llvm::Type* jdouble_type() const { |
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100 return _jdouble_type; |
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101 } |
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102 llvm::IntegerType* intptr_type() const { |
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103 return LP64_ONLY(jlong_type()) NOT_LP64(jint_type()); |
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104 } |
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105 |
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106 // Compound types |
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107 private: |
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108 llvm::PointerType* _itableOffsetEntry_type; |
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109 llvm::PointerType* _jniEnv_type; |
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110 llvm::PointerType* _jniHandleBlock_type; |
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111 llvm::PointerType* _Metadata_type; |
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112 llvm::PointerType* _klass_type; |
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113 llvm::PointerType* _Method_type; |
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114 llvm::ArrayType* _monitor_type; |
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115 llvm::PointerType* _oop_type; |
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116 llvm::PointerType* _thread_type; |
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117 llvm::PointerType* _zeroStack_type; |
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118 llvm::FunctionType* _entry_point_type; |
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119 llvm::FunctionType* _osr_entry_point_type; |
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120 |
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121 public: |
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122 llvm::PointerType* itableOffsetEntry_type() const { |
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123 return _itableOffsetEntry_type; |
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124 } |
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125 llvm::PointerType* jniEnv_type() const { |
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126 return _jniEnv_type; |
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127 } |
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128 llvm::PointerType* jniHandleBlock_type() const { |
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129 return _jniHandleBlock_type; |
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130 } |
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131 llvm::PointerType* Metadata_type() const { |
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132 return _Metadata_type; |
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133 } |
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134 llvm::PointerType* klass_type() const { |
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135 return _klass_type; |
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136 } |
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137 llvm::PointerType* Method_type() const { |
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138 return _Method_type; |
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139 } |
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140 llvm::ArrayType* monitor_type() const { |
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141 return _monitor_type; |
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142 } |
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143 llvm::PointerType* oop_type() const { |
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144 return _oop_type; |
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145 } |
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146 llvm::PointerType* thread_type() const { |
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147 return _thread_type; |
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148 } |
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149 llvm::PointerType* zeroStack_type() const { |
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150 return _zeroStack_type; |
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151 } |
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152 llvm::FunctionType* entry_point_type() const { |
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153 return _entry_point_type; |
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154 } |
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155 llvm::FunctionType* osr_entry_point_type() const { |
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156 return _osr_entry_point_type; |
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157 } |
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158 |
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159 // Mappings |
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160 private: |
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161 llvm::Type* _to_stackType[T_CONFLICT]; |
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162 llvm::Type* _to_arrayType[T_CONFLICT]; |
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163 |
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164 private: |
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165 llvm::Type* map_type(llvm::Type* const* table, |
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166 BasicType type) const { |
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167 assert(type >= 0 && type < T_CONFLICT, "unhandled type"); |
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168 llvm::Type* result = table[type]; |
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169 assert(result != NULL, "unhandled type"); |
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170 return result; |
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171 } |
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172 |
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173 public: |
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174 llvm::Type* to_stackType(BasicType type) const { |
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175 return map_type(_to_stackType, type); |
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176 } |
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177 llvm::Type* to_arrayType(BasicType type) const { |
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178 return map_type(_to_arrayType, type); |
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179 } |
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180 |
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181 // Functions queued for freeing |
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182 private: |
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183 SharkFreeQueueItem* _free_queue; |
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184 |
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185 public: |
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186 void push_to_free_queue(llvm::Function* function); |
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187 llvm::Function* pop_from_free_queue(); |
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188 }; |
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189 |
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190 #endif // SHARE_VM_SHARK_SHARKCONTEXT_HPP |
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