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1692
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1 /*
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1972
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2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
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1692
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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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1972
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26 #ifndef SHARE_VM_SHARK_SHARKBUILDER_HPP
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27 #define SHARE_VM_SHARK_SHARKBUILDER_HPP
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28
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29 #include "ci/ciType.hpp"
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30 #include "memory/barrierSet.hpp"
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31 #include "memory/cardTableModRefBS.hpp"
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32 #include "shark/llvmHeaders.hpp"
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33 #include "shark/llvmValue.hpp"
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34 #include "shark/sharkCodeBuffer.hpp"
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35 #include "shark/sharkEntry.hpp"
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36 #include "shark/sharkType.hpp"
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37 #include "shark/sharkValue.hpp"
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38 #include "utilities/debug.hpp"
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39 #include "utilities/sizes.hpp"
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40
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1692
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41 class SharkBuilder : public llvm::IRBuilder<> {
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42 friend class SharkCompileInvariants;
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43
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44 public:
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45 SharkBuilder(SharkCodeBuffer* code_buffer);
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46
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47 // The code buffer we are building into.
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48 private:
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49 SharkCodeBuffer* _code_buffer;
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50
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51 protected:
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52 SharkCodeBuffer* code_buffer() const {
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53 return _code_buffer;
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54 }
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55
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56 // Helpers for accessing structures.
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57 public:
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58 llvm::Value* CreateAddressOfStructEntry(llvm::Value* base,
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59 ByteSize offset,
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60 const llvm::Type* type,
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61 const char *name = "");
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62 llvm::LoadInst* CreateValueOfStructEntry(llvm::Value* base,
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63 ByteSize offset,
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64 const llvm::Type* type,
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65 const char *name = "");
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66
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67 // Helpers for accessing arrays.
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68 public:
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69 llvm::LoadInst* CreateArrayLength(llvm::Value* arrayoop);
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70 llvm::Value* CreateArrayAddress(llvm::Value* arrayoop,
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71 const llvm::Type* element_type,
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72 int element_bytes,
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73 ByteSize base_offset,
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74 llvm::Value* index,
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75 const char* name = "");
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76 llvm::Value* CreateArrayAddress(llvm::Value* arrayoop,
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77 BasicType basic_type,
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78 ByteSize base_offset,
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79 llvm::Value* index,
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80 const char* name = "");
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81 llvm::Value* CreateArrayAddress(llvm::Value* arrayoop,
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82 BasicType basic_type,
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83 llvm::Value* index,
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84 const char* name = "");
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85
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86 // Helpers for creating intrinsics and external functions.
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87 private:
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88 static const llvm::Type* make_type(char type, bool void_ok);
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89 static const llvm::FunctionType* make_ftype(const char* params,
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90 const char* ret);
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91 llvm::Value* make_function(const char* name,
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92 const char* params,
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93 const char* ret);
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94 llvm::Value* make_function(address func,
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95 const char* params,
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96 const char* ret);
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97
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98 // Intrinsics and external functions, part 1: VM calls.
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99 // These are functions declared with JRT_ENTRY and JRT_EXIT,
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100 // macros which flip the thread from _thread_in_Java to
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101 // _thread_in_vm and back. VM calls always safepoint, and can
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102 // therefore throw exceptions. VM calls require of setup and
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103 // teardown, and must be called with SharkTopLevelBlock::call_vm.
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104 public:
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105 llvm::Value* find_exception_handler();
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106 llvm::Value* monitorenter();
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107 llvm::Value* monitorexit();
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108 llvm::Value* new_instance();
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109 llvm::Value* newarray();
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110 llvm::Value* anewarray();
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111 llvm::Value* multianewarray();
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112 llvm::Value* register_finalizer();
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113 llvm::Value* safepoint();
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114 llvm::Value* throw_ArithmeticException();
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115 llvm::Value* throw_ArrayIndexOutOfBoundsException();
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116 llvm::Value* throw_ClassCastException();
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117 llvm::Value* throw_NullPointerException();
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118
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119 // Intrinsics and external functions, part 2: High-level non-VM calls.
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120 // These are called like normal functions. The stack is not set
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121 // up for walking so they must not safepoint or throw exceptions,
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122 // or call anything that might.
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123 public:
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124 llvm::Value* f2i();
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125 llvm::Value* f2l();
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126 llvm::Value* d2i();
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127 llvm::Value* d2l();
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128 llvm::Value* is_subtype_of();
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129 llvm::Value* current_time_millis();
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130 llvm::Value* sin();
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131 llvm::Value* cos();
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132 llvm::Value* tan();
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133 llvm::Value* atan2();
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134 llvm::Value* sqrt();
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135 llvm::Value* log();
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136 llvm::Value* log10();
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137 llvm::Value* pow();
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138 llvm::Value* exp();
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139 llvm::Value* fabs();
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140 llvm::Value* unsafe_field_offset_to_byte_offset();
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141 llvm::Value* osr_migration_end();
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142
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143 // Intrinsics and external functions, part 3: semi-VM calls.
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144 // These are special cases that do VM call stuff but are invoked
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145 // as though they were normal calls. This is acceptable so long
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146 // as the method that calls them returns to its immediately that
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147 // the semi VM call returns.
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148 public:
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149 llvm::Value* throw_StackOverflowError();
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150 llvm::Value* uncommon_trap();
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151 llvm::Value* deoptimized_entry_point();
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152
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153 // Intrinsics and external functions, part 4: Native-Java transition.
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154 // This is a special case in that it is invoked during a thread
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155 // state transition. The stack must be set up for walking, and it
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156 // may throw exceptions, but the state is _thread_in_native_trans.
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157 public:
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158 llvm::Value* check_special_condition_for_native_trans();
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159
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160 // Intrinsics and external functions, part 5: Low-level non-VM calls.
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161 // These have the same caveats as the high-level non-VM calls
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162 // above. They are not accessed directly; rather, you should
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163 // access them via the various Create* methods below.
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164 private:
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165 llvm::Value* cmpxchg_int();
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166 llvm::Value* cmpxchg_ptr();
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167 llvm::Value* frame_address();
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168 llvm::Value* memory_barrier();
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169 llvm::Value* memset();
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170 llvm::Value* unimplemented();
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171 llvm::Value* should_not_reach_here();
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172 llvm::Value* dump();
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173
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174 // Public interface to low-level non-VM calls.
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175 public:
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176 llvm::CallInst* CreateCmpxchgInt(llvm::Value* exchange_value,
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177 llvm::Value* dst,
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178 llvm::Value* compare_value);
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179 llvm::CallInst* CreateCmpxchgPtr(llvm::Value* exchange_value,
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180 llvm::Value* dst,
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181 llvm::Value* compare_value);
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182 llvm::CallInst* CreateGetFrameAddress();
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183 llvm::CallInst* CreateMemoryBarrier(int flags);
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184 llvm::CallInst* CreateMemset(llvm::Value* dst,
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185 llvm::Value* value,
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186 llvm::Value* len,
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187 llvm::Value* align);
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188 llvm::CallInst* CreateUnimplemented(const char* file, int line);
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189 llvm::CallInst* CreateShouldNotReachHere(const char* file, int line);
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190 NOT_PRODUCT(llvm::CallInst* CreateDump(llvm::Value* value));
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191
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192 // Flags for CreateMemoryBarrier.
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193 public:
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194 enum BarrierFlags {
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195 BARRIER_LOADLOAD = 1,
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196 BARRIER_LOADSTORE = 2,
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197 BARRIER_STORELOAD = 4,
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198 BARRIER_STORESTORE = 8
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199 };
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200
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201 // HotSpot memory barriers
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202 public:
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203 void CreateUpdateBarrierSet(BarrierSet* bs, llvm::Value* field);
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204
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205 // Helpers for accessing the code buffer.
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206 public:
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207 llvm::Value* code_buffer_address(int offset);
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208 llvm::Value* CreateInlineOop(jobject object, const char* name = "");
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209 llvm::Value* CreateInlineOop(ciObject* object, const char* name = "") {
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210 return CreateInlineOop(object->constant_encoding(), name);
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211 }
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212 llvm::Value* CreateInlineData(void* data,
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213 size_t size,
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214 const llvm::Type* type,
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215 const char* name = "");
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216
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217 // Helpers for creating basic blocks.
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218 // NB don't use unless SharkFunction::CreateBlock is unavailable.
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219 // XXX these are hacky and should be removed.
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220 public:
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221 llvm::BasicBlock* GetBlockInsertionPoint() const;
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222 llvm::BasicBlock* CreateBlock(llvm::BasicBlock* ip,
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223 const char* name="") const;
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224 };
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225
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226 #endif // SHARE_VM_SHARK_SHARKBUILDER_HPP
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