annotate gen/irstate.h @ 334:20446d22f832 trunk

[svn r355] Get rid of IRState::exps and topexp.
author ChristianK
date Sat, 12 Jul 2008 15:43:13 +0200
parents 0d52412d5b1a
children f7259fa1349c
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1 #ifndef LLVMDC_GEN_IRSTATE_H
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2 #define LLVMDC_GEN_IRSTATE_H
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3
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4 #include <vector>
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5 #include <list>
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6
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7 #include "root.h"
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8 #include "aggregate.h"
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9
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10 #include "ir/irfunction.h"
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11 #include "ir/irstruct.h"
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12 #include "ir/irvar.h"
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13
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14 // global ir state for current module
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15 struct IRState;
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16 extern IRState* gIR;
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17 extern const llvm::TargetData* gTargetData;
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18
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19 struct TypeFunction;
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20 struct TypeStruct;
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21 struct ClassDeclaration;
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22 struct FuncDeclaration;
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23 struct Module;
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24 struct TypeStruct;
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25 struct BaseClass;
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26 struct EnclosingHandler;
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27
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28 struct IrModule;
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29
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30 // represents a scope
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31 struct IRScope
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32 {
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33 llvm::BasicBlock* begin;
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34 llvm::BasicBlock* end;
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35 IRBuilder builder;
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36
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37 IRScope();
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38 IRScope(llvm::BasicBlock* b, llvm::BasicBlock* e);
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39 };
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40
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41 // scope for loops
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42 struct IRLoopScope : IRScope
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43 {
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44 // generating statement
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45 Statement* s;
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46 // the try of a TryFinally that encloses the loop
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47 EnclosingHandler* enclosinghandler;
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48 // if it is a switch, we are a possible target for break
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49 // but not for continue
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50 bool isSwitch;
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51
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52 IRLoopScope();
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53 IRLoopScope(Statement* s, EnclosingHandler* enclosinghandler, llvm::BasicBlock* b, llvm::BasicBlock* e, bool isSwitch = false);
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54 };
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55
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56 struct IRBuilderHelper
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57 {
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58 IRState* state;
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59 IRBuilder* operator->();
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60 };
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61
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62 struct IRAsmStmt
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63 {
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64 std::string code;
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65 std::string out_c;
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66 std::string in_c;
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67 std::vector<LLValue*> out;
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68 std::vector<LLValue*> in;
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70 // if this is nonzero, it contains the target label
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71 Identifier* isBranchToLabel;
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72 };
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74 struct IRAsmBlock
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75 {
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76 std::vector<IRAsmStmt*> s;
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77 std::set<std::string> clobs;
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78
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79 // stores the labels within the asm block
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80 std::vector<Identifier*> internalLabels;
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81 };
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82
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83 // llvm::CallInst and llvm::InvokeInst don't share a common base
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84 // but share common functionality. to avoid duplicating code for
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85 // adjusting these common properties these structs are made
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86 struct CallOrInvoke
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87 {
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88 virtual void setParamAttrs(const llvm::PAListPtr& Attrs) = 0;
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89 virtual void setCallingConv(unsigned CC) = 0;
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90 virtual llvm::Instruction* get() = 0;
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91 };
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92
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93 struct CallOrInvoke_Call : public CallOrInvoke
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94 {
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95 llvm::CallInst* inst;
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96 CallOrInvoke_Call(llvm::CallInst* call) : inst(call) {}
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97
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98 virtual void setParamAttrs(const llvm::PAListPtr& Attrs)
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99 { inst->setParamAttrs(Attrs); }
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100 virtual void setCallingConv(unsigned CC)
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101 { inst->setCallingConv(CC); }
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102 virtual llvm::Instruction* get()
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103 { return inst; }
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104 };
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105
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106 struct CallOrInvoke_Invoke : public CallOrInvoke
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107 {
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108 llvm::InvokeInst* inst;
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109 CallOrInvoke_Invoke(llvm::InvokeInst* invoke) : inst(invoke) {}
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110
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111 virtual void setParamAttrs(const llvm::PAListPtr& Attrs)
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112 { inst->setParamAttrs(Attrs); }
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113 virtual void setCallingConv(unsigned CC)
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114 { inst->setCallingConv(CC); }
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115 virtual llvm::Instruction* get()
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116 { return inst; }
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117 };
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118
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119 // represents the module
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120 struct IRState
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121 {
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122 IRState();
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123
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124 // module
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125 Module* dmodule;
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126 llvm::Module* module;
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127
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128 // interface info type, used in DtoInterfaceInfoType
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129 const LLStructType* interfaceInfoType;
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130 const LLStructType* mutexType;
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131 const LLStructType* moduleRefType;
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132
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133 // functions
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134 typedef std::vector<IrFunction*> FunctionVector;
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135 FunctionVector functions;
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136 IrFunction* func();
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137
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138 llvm::Function* topfunc();
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139 TypeFunction* topfunctype();
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140 llvm::Instruction* topallocapoint();
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141
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142 // structs
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143 typedef std::vector<IrStruct*> StructVector;
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144 StructVector structs;
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145 IrStruct* topstruct();
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146
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147 // classes TODO move into IRClass
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148 typedef std::vector<ClassDeclaration*> ClassDeclVec;
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149 ClassDeclVec classes;
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150
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151 // D main function
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152 bool emitMain;
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153 llvm::Function* mainFunc;
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154
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155 // basic block scopes
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156 std::vector<IRScope> scopes;
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157 IRScope& scope();
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158 llvm::BasicBlock* scopebb();
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159 llvm::BasicBlock* scopeend();
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160 bool scopereturned();
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161
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162 // create a call or invoke, depending on the landing pad info
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163 // the template function is defined further down in this file
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164 template <typename InputIterator>
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165 CallOrInvoke* CreateCallOrInvoke(LLValue* Callee, InputIterator ArgBegin, InputIterator ArgEnd, const char* Name="");
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166 CallOrInvoke* CreateCallOrInvoke(LLValue* Callee, const char* Name="");
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167 CallOrInvoke* CreateCallOrInvoke(LLValue* Callee, LLValue* Arg1, const char* Name="");
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168 CallOrInvoke* CreateCallOrInvoke2(LLValue* Callee, LLValue* Arg1, LLValue* Arg2, const char* Name="");
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169 CallOrInvoke* CreateCallOrInvoke3(LLValue* Callee, LLValue* Arg1, LLValue* Arg2, LLValue* Arg3, const char* Name="");
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170 CallOrInvoke* CreateCallOrInvoke4(LLValue* Callee, LLValue* Arg1, LLValue* Arg2, LLValue* Arg3, LLValue* Arg4, const char* Name="");
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171
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172 // loop blocks
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173 typedef std::vector<IRLoopScope> LoopScopeVec;
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174 LoopScopeVec loopbbs;
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175
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176 // this holds the array being indexed or sliced so $ will work
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177 // might be a better way but it works. problem is I only get a
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178 // VarDeclaration for __dollar, but I can't see how to get the
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179 // array pointer from this :(
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180 std::vector<DValue*> arrays;
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37a4fdab33fc [svn r19] * Added support for reassigning 'this' inside class constructors.
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181
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182 // builder helper
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183 IRBuilderHelper ir;
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6789050b5ad1 [svn r102] Further delayed emission of function bodies to avoid problems with circular-forward-references.
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184
102
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185 typedef std::list<Dsymbol*> DsymbolList;
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186 // dsymbols that need to be resolved
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187 DsymbolList resolveList;
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188 // dsymbols that need to be declared
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189 DsymbolList declareList;
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190 // dsymbols that need constant initializers constructed
102
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191 DsymbolList constInitList;
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192 // dsymbols that need definitions
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193 DsymbolList defineList;
116
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194
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195 // static ctors/dtors/unittests
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196 typedef std::vector<FuncDeclaration*> FuncDeclVector;
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197 FuncDeclVector ctors;
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198 FuncDeclVector dtors;
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199 FuncDeclVector unitTests;
232
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200
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201 // for inline asm
233
76ee1bbe487e [svn r249] Changed inline asm clobbers to a set instead of a list so we don't get duplicate clobbers.
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202 IRAsmBlock* asmBlock;
250
fc9c1a0eabbd [svn r267] Fixed debug info for global variables.
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203
252
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204 // dwarf dbg stuff
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205 // 'used' array solely for keeping a reference to globals
250
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206 std::vector<LLConstant*> usedArray;
252
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207 LLGlobalVariable* dwarfCUs;
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208 LLGlobalVariable* dwarfSPs;
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209 LLGlobalVariable* dwarfGVs;
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210 };
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211
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212 template <typename InputIterator>
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213 CallOrInvoke* IRState::CreateCallOrInvoke(LLValue* Callee, InputIterator ArgBegin, InputIterator ArgEnd, const char* Name)
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214 {
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215 llvm::BasicBlock* pad;
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216 if(pad = func()->landingPad.get())
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217 {
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218 llvm::BasicBlock* postinvoke = llvm::BasicBlock::Create("postinvoke", topfunc(), scopeend());
319
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219 llvm::InvokeInst* invoke = ir->CreateInvoke(Callee, postinvoke, pad, ArgBegin, ArgEnd, Name);
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220 scope() = IRScope(postinvoke, scopeend());
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221 return new CallOrInvoke_Invoke(invoke);
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222 }
319
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223 else
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224 return new CallOrInvoke_Call(ir->CreateCall(Callee, ArgBegin, ArgEnd, Name));
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225 }
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226
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227 #endif // LLVMDC_GEN_IRSTATE_H