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1 /* |
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2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright 2008, 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 class SharkBuilder : public llvm::IRBuilder<> { |
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27 friend class SharkCompileInvariants; |
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28 |
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29 public: |
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30 SharkBuilder(SharkCodeBuffer* code_buffer); |
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31 |
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32 // The code buffer we are building into. |
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33 private: |
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34 SharkCodeBuffer* _code_buffer; |
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35 |
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36 protected: |
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37 SharkCodeBuffer* code_buffer() const { |
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38 return _code_buffer; |
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39 } |
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40 |
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41 // Helpers for accessing structures. |
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42 public: |
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43 llvm::Value* CreateAddressOfStructEntry(llvm::Value* base, |
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44 ByteSize offset, |
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45 const llvm::Type* type, |
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46 const char *name = ""); |
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47 llvm::LoadInst* CreateValueOfStructEntry(llvm::Value* base, |
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48 ByteSize offset, |
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49 const llvm::Type* type, |
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50 const char *name = ""); |
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51 |
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52 // Helpers for accessing arrays. |
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53 public: |
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54 llvm::LoadInst* CreateArrayLength(llvm::Value* arrayoop); |
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55 llvm::Value* CreateArrayAddress(llvm::Value* arrayoop, |
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56 const llvm::Type* element_type, |
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57 int element_bytes, |
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58 ByteSize base_offset, |
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59 llvm::Value* index, |
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60 const char* name = ""); |
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61 llvm::Value* CreateArrayAddress(llvm::Value* arrayoop, |
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62 BasicType basic_type, |
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63 ByteSize base_offset, |
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64 llvm::Value* index, |
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65 const char* name = ""); |
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66 llvm::Value* CreateArrayAddress(llvm::Value* arrayoop, |
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67 BasicType basic_type, |
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68 llvm::Value* index, |
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69 const char* name = ""); |
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70 |
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71 // Helpers for creating intrinsics and external functions. |
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72 private: |
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73 static const llvm::Type* make_type(char type, bool void_ok); |
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74 static const llvm::FunctionType* make_ftype(const char* params, |
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75 const char* ret); |
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76 llvm::Value* make_function(const char* name, |
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77 const char* params, |
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78 const char* ret); |
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79 llvm::Value* make_function(address func, |
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80 const char* params, |
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81 const char* ret); |
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82 |
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83 // Intrinsics and external functions, part 1: VM calls. |
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84 // These are functions declared with JRT_ENTRY and JRT_EXIT, |
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85 // macros which flip the thread from _thread_in_Java to |
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86 // _thread_in_vm and back. VM calls always safepoint, and can |
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87 // therefore throw exceptions. VM calls require of setup and |
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88 // teardown, and must be called with SharkTopLevelBlock::call_vm. |
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89 public: |
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90 llvm::Value* find_exception_handler(); |
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91 llvm::Value* monitorenter(); |
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92 llvm::Value* monitorexit(); |
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93 llvm::Value* new_instance(); |
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94 llvm::Value* newarray(); |
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95 llvm::Value* anewarray(); |
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96 llvm::Value* multianewarray(); |
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97 llvm::Value* register_finalizer(); |
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98 llvm::Value* safepoint(); |
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99 llvm::Value* throw_ArithmeticException(); |
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100 llvm::Value* throw_ArrayIndexOutOfBoundsException(); |
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101 llvm::Value* throw_ClassCastException(); |
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102 llvm::Value* throw_NullPointerException(); |
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103 |
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104 // Intrinsics and external functions, part 2: High-level non-VM calls. |
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105 // These are called like normal functions. The stack is not set |
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106 // up for walking so they must not safepoint or throw exceptions, |
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107 // or call anything that might. |
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108 public: |
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109 llvm::Value* f2i(); |
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110 llvm::Value* f2l(); |
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111 llvm::Value* d2i(); |
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112 llvm::Value* d2l(); |
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113 llvm::Value* is_subtype_of(); |
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114 llvm::Value* current_time_millis(); |
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115 llvm::Value* sin(); |
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116 llvm::Value* cos(); |
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117 llvm::Value* tan(); |
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118 llvm::Value* atan2(); |
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119 llvm::Value* sqrt(); |
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120 llvm::Value* log(); |
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121 llvm::Value* log10(); |
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122 llvm::Value* pow(); |
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123 llvm::Value* exp(); |
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124 llvm::Value* fabs(); |
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125 llvm::Value* unsafe_field_offset_to_byte_offset(); |
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126 llvm::Value* osr_migration_end(); |
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127 |
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128 // Intrinsics and external functions, part 3: semi-VM calls. |
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129 // These are special cases that do VM call stuff but are invoked |
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130 // as though they were normal calls. This is acceptable so long |
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131 // as the method that calls them returns to its immediately that |
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132 // the semi VM call returns. |
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133 public: |
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134 llvm::Value* throw_StackOverflowError(); |
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135 llvm::Value* uncommon_trap(); |
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136 llvm::Value* deoptimized_entry_point(); |
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137 |
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138 // Intrinsics and external functions, part 4: Native-Java transition. |
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139 // This is a special case in that it is invoked during a thread |
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140 // state transition. The stack must be set up for walking, and it |
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141 // may throw exceptions, but the state is _thread_in_native_trans. |
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142 public: |
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143 llvm::Value* check_special_condition_for_native_trans(); |
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144 |
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145 // Intrinsics and external functions, part 5: Low-level non-VM calls. |
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146 // These have the same caveats as the high-level non-VM calls |
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147 // above. They are not accessed directly; rather, you should |
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148 // access them via the various Create* methods below. |
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149 private: |
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150 llvm::Value* cmpxchg_int(); |
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151 llvm::Value* cmpxchg_ptr(); |
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152 llvm::Value* frame_address(); |
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153 llvm::Value* memory_barrier(); |
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154 llvm::Value* memset(); |
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155 llvm::Value* unimplemented(); |
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156 llvm::Value* should_not_reach_here(); |
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157 llvm::Value* dump(); |
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158 |
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159 // Public interface to low-level non-VM calls. |
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160 public: |
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161 llvm::CallInst* CreateCmpxchgInt(llvm::Value* exchange_value, |
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162 llvm::Value* dst, |
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163 llvm::Value* compare_value); |
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164 llvm::CallInst* CreateCmpxchgPtr(llvm::Value* exchange_value, |
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165 llvm::Value* dst, |
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166 llvm::Value* compare_value); |
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167 llvm::CallInst* CreateGetFrameAddress(); |
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168 llvm::CallInst* CreateMemoryBarrier(int flags); |
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169 llvm::CallInst* CreateMemset(llvm::Value* dst, |
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170 llvm::Value* value, |
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171 llvm::Value* len, |
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172 llvm::Value* align); |
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173 llvm::CallInst* CreateUnimplemented(const char* file, int line); |
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174 llvm::CallInst* CreateShouldNotReachHere(const char* file, int line); |
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175 NOT_PRODUCT(llvm::CallInst* CreateDump(llvm::Value* value)); |
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176 |
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177 // Flags for CreateMemoryBarrier. |
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178 public: |
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179 enum BarrierFlags { |
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180 BARRIER_LOADLOAD = 1, |
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181 BARRIER_LOADSTORE = 2, |
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182 BARRIER_STORELOAD = 4, |
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183 BARRIER_STORESTORE = 8 |
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184 }; |
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185 |
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186 // HotSpot memory barriers |
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187 public: |
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188 void CreateUpdateBarrierSet(BarrierSet* bs, llvm::Value* field); |
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189 |
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190 // Helpers for accessing the code buffer. |
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191 public: |
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192 llvm::Value* code_buffer_address(int offset); |
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193 llvm::Value* CreateInlineOop(jobject object, const char* name = ""); |
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194 llvm::Value* CreateInlineOop(ciObject* object, const char* name = "") { |
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195 return CreateInlineOop(object->constant_encoding(), name); |
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196 } |
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197 llvm::Value* CreateInlineData(void* data, |
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198 size_t size, |
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199 const llvm::Type* type, |
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200 const char* name = ""); |
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201 |
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202 // Helpers for creating basic blocks. |
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203 // NB don't use unless SharkFunction::CreateBlock is unavailable. |
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204 // XXX these are hacky and should be removed. |
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205 public: |
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206 llvm::BasicBlock* GetBlockInsertionPoint() const; |
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207 llvm::BasicBlock* CreateBlock(llvm::BasicBlock* ip, |
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208 const char* name="") const; |
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209 }; |