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annotate ir/irstruct.h @ 1083:c1e9f612e2e2

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Fix for dual operand form of fistp, also make reg ST(0) explicit and fix lindquists previous code that allowed dual operand form of fstp but dissallowed the single operand form accidently
author Kelly Wilson <wilsonk cpsc.ucalgary.ca>
date Tue, 10 Mar 2009 06:23:26 -0600
parents 1714836f2c0b
children 5ebe8224988b
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rev   line source
664
eef8ac26c66c Some missed LLVMDC -> LDC.
Christian Kamm <kamm incasoftware de>
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1 #ifndef LDC_IR_IRSTRUCT_H
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2 #define LDC_IR_IRSTRUCT_H
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3
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4 #include "ir/ir.h"
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5
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6 #include <vector>
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7 #include <map>
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8
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9 struct IrInterface;
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10
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11 void addZeros(std::vector<const llvm::Type*>& inits, size_t pos, size_t offset);
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12 void addZeros(std::vector<llvm::Constant*>& inits, size_t pos, size_t offset);
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13 void addZeros(std::vector<llvm::Value*>& inits, size_t pos, size_t offset);
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14
136
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15 //////////////////////////////////////////////////////////////////////////////
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16 //////////////////////////////////////////////////////////////////////////////
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17 //////////////////////////////////////////////////////////////////////////////
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18
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19 // represents a struct or class
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20 // it is used during codegen to hold all the vital info we need
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21 struct IrStruct : IrBase
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22 {
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23 /////////////////////////////////////////////////////////////////////
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24 /////////////////////////////////////////////////////////////////////
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25
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26 typedef std::vector<VarDeclaration*> VarDeclVector;
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27
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28 typedef std::map<ClassDeclaration*, IrInterface*> InterfaceMap;
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29 typedef InterfaceMap::iterator InterfaceMapIter;
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30
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31 typedef std::vector<IrInterface*> InterfaceVector;
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32 typedef InterfaceVector::iterator InterfaceVectorIter;
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33
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34 // vector of LLVM types
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35 typedef std::vector<const llvm::Type*> TypeVector;
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36
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37 /////////////////////////////////////////////////////////////////////
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38 /////////////////////////////////////////////////////////////////////
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39
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40 // Anon represents an anonymous struct union block inside an aggregate
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41 // during LLVM type construction.
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42 struct Anon
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43 {
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44 bool isunion;
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45 Anon* parent;
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46
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47 TypeVector types;
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48
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49 Anon(bool IsUnion, Anon* par) : isunion(IsUnion), parent(par) {}
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50 };
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51
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52 /////////////////////////////////////////////////////////////////////
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53 /////////////////////////////////////////////////////////////////////
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54
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55 /// ctor
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56 IrStruct(AggregateDeclaration* agg);
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57
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58 /// dtor
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59 virtual ~IrStruct();
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60
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61 /////////////////////////////////////////////////////////////////////
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62 /////////////////////////////////////////////////////////////////////
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63
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64 /// push an anonymous struct/union
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65 void pushAnon(bool isunion);
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66
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67 /// pops an anonymous struct/union
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68 void popAnon();
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69
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70 /// adds field
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71 void addVar(VarDeclaration* var);
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72
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73 /////////////////////////////////////////////////////////////////////
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74 /////////////////////////////////////////////////////////////////////
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75
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76 /// build the aggr type
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77 const LLType* build();
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78
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79 /// put the aggr initializers in a vector
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80 void buildDefaultConstInit(std::vector<llvm::Constant*>& inits);
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81
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82 /// ditto - but also builds the constant struct, for convenience
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83 LLConstant* buildDefaultConstInit();
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84
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85 /////////////////////////////////////////////////////////////////////
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86 /////////////////////////////////////////////////////////////////////
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87
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88 // the D aggregate
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89 AggregateDeclaration* aggrdecl;
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90
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91 // vector of VarDeclarations in this aggregate
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92 VarDeclVector varDecls;
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93
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94 // vector of VarDeclarations that contribute to the default initializer
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95 VarDeclVector defVars;
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96
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97 // true if the default initializer has been built
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98 bool defaultFound;
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99
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100 // top element
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101 Anon* anon;
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102
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103 // toplevel types in this aggr
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104 TypeVector types;
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105
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106 // current index
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107 // always the same as types.size()
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108 size_t index;
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109
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110 // aggregate D type
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111 Type* type;
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112
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113 // class vtable type
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114 llvm::PATypeHolder vtblTy;
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115 llvm::PATypeHolder vtblInitTy;
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116
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117 // initializer type opaque (type of global matches initializer, not formal type)
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118 llvm::PATypeHolder initOpaque;
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119 llvm::PATypeHolder classInfoOpaque;
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120
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121 // map/vector of interfaces implemented
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122 InterfaceMap interfaceMap;
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123 InterfaceVector interfaceVec;
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124
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125 // interface info array global
252
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126 LLGlobalVariable* interfaceInfos;
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127
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128 // ...
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129 bool defined;
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130 bool constinited;
137
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131
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132 // vtbl global and initializer
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133 LLGlobalVariable* vtbl;
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134 LLConstant* constVtbl;
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135
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136 // static initializers global and constant
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137 LLGlobalVariable* init;
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138 LLConstant* constInit;
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139
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140 // classinfo global and initializer constant
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141 LLGlobalVariable* classInfo;
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142 LLConstant* constClassInfo;
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143 bool classInfoDeclared;
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144 bool classInfoDefined;
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145 // vector of interfaces that should be put in ClassInfo.interfaces
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146 InterfaceVector classInfoInterfaces;
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147
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148 // align(1) struct S { ... }
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149 bool packed;
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150
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151 // composite type debug description
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152 llvm::DICompositeType diCompositeType;
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153 };
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154
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155 //////////////////////////////////////////////////////////////////////////////
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156 //////////////////////////////////////////////////////////////////////////////
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157 //////////////////////////////////////////////////////////////////////////////
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158
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159 // represents interface implemented by a class
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160 struct IrInterface : IrBase
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161 {
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162 BaseClass* base;
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163 ClassDeclaration* decl;
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164
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165 llvm::PATypeHolder vtblInitTy;
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166
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167 LLConstant* vtblInit;
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168 LLGlobalVariable* vtbl;
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169 Array vtblDecls; // array of FuncDecls that make up the vtbl
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170
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171 const LLStructType* infoTy;
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172 LLConstant* infoInit;
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173 LLConstant* info;
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174
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175 size_t index;
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176
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177 IrInterface(BaseClass* b);
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178 };
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179
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180 #endif