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annotate gen/declarations.cpp @ 1650:40bd4a0d4870

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Update to work with LLVM 2.7. Removed use of dyn_cast, llvm no compiles without exceptions and rtti by default. We do need exceptions for the libconfig stuff, but rtti isn't necessary (anymore). Debug info needs to be rewritten, as in LLVM 2.7 the format has completely changed. To have something to look at while rewriting, the old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means that you have to define this to compile at the moment. Updated tango 0.99.9 patch to include updated EH runtime code, which is needed for LLVM 2.7 as well.
author Tomas Lindquist Olsen
date Wed, 19 May 2010 12:42:32 +0200
parents ad7f2f1862d6
children
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1 #include "gen/llvm.h"
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2
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3 #include "aggregate.h"
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4 #include "declaration.h"
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5 #include "enum.h"
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6 #include "id.h"
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7 #include "mem.h"
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8 #include "template.h"
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9
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10 #include "gen/irstate.h"
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11 #include "gen/tollvm.h"
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12 #include "gen/llvmhelpers.h"
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13 #include "gen/logger.h"
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14
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15 #include "ir/ir.h"
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16 #include "ir/irvar.h"
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17 #include "ir/irtype.h"
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18 #include "ir/irtypestruct.h"
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19
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20 /* ================================================================== */
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21
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22 void Dsymbol::codegen(Ir*)
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23 {
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24 Logger::println("Ignoring Dsymbol::toObjFile for %s", toChars());
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25 }
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26
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27 /* ================================================================== */
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28
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29 void Declaration::codegen(Ir*)
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30 {
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31 Logger::println("Ignoring Declaration::toObjFile for %s", toChars());
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32 }
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33
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34 /* ================================================================== */
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35
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36 void InterfaceDeclaration::codegen(Ir*)
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37 {
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38 //Logger::println("Ignoring InterfaceDeclaration::toObjFile for %s", toChars());
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39 DtoResolveDsymbol(this);
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40 }
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41
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42 /* ================================================================== */
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43
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44 void StructDeclaration::codegen(Ir*)
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45 {
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46 DtoResolveDsymbol(this);
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47 }
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48
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49 /* ================================================================== */
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50
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51 void ClassDeclaration::codegen(Ir*)
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52 {
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53 DtoResolveDsymbol(this);
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54 }
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55
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56 /* ================================================================== */
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57
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58 void TupleDeclaration::codegen(Ir* p)
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59 {
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60 Logger::println("TupleDeclaration::toObjFile(): %s", toChars());
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61
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62 assert(isexp);
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63 assert(objects);
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64
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65 int n = objects->dim;
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66
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67 for (int i=0; i < n; ++i)
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68 {
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69 DsymbolExp* exp = (DsymbolExp*)objects->data[i];
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70 assert(exp->op == TOKdsymbol);
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71 exp->s->codegen(p);
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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
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77 // FIXME: this is horrible!!!
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78
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79 void VarDeclaration::codegen(Ir* p)
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80 {
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81 Logger::print("VarDeclaration::toObjFile(): %s | %s\n", toChars(), type->toChars());
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82 LOG_SCOPE;
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83
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84 // just forward aliases
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85 if (aliassym)
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86 {
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87 Logger::println("alias sym");
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88 toAlias()->codegen(p);
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89 return;
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90 }
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91
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92 // output the parent aggregate first
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93 if (AggregateDeclaration* ad = isMember())
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94 ad->codegen(p);
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95
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96 // global variable
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97 #if DMDV2
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98 // taken from dmd2/structs
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99 if (isDataseg() || (storage_class & (STCconst | STCimmutable) && init))
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100 #else
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101 if (isDataseg())
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102 #endif
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103 {
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104 Logger::println("data segment");
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105
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106 #if DMDV2
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107 if (storage_class & STCmanifest)
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108 {
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109 assert(0 && "manifest constant being codegened!!!");
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110 }
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111 #endif
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112
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113 // don't duplicate work
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114 if (this->ir.resolved) return;
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115 this->ir.resolved = true;
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116 this->ir.declared = true;
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117
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118 this->ir.irGlobal = new IrGlobal(this);
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119
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120 Logger::println("parent: %s (%s)", parent->toChars(), parent->kind());
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121
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122 #if DMDV2
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123 // not sure why this is only needed for d2
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124 bool _isconst = isConst() && init;
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125 #else
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126 bool _isconst = isConst();
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127 #endif
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128
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129
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130 Logger::println("Creating global variable");
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131
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132 const LLType* _type = this->ir.irGlobal->type.get();
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133 llvm::GlobalValue::LinkageTypes _linkage = DtoLinkage(this);
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134 std::string _name(mangle());
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135
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136 llvm::GlobalVariable* gvar = new llvm::GlobalVariable(*gIR->module,_type,_isconst,_linkage,NULL,_name);
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137 this->ir.irGlobal->value = gvar;
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138
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139 // set the alignment
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140 gvar->setAlignment(this->type->alignsize());
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141
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142 if (Logger::enabled())
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143 Logger::cout() << *gvar << '\n';
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144
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145 // if this global is used from a nested function, this is necessary or
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146 // optimization could potentially remove the global (if it's the only use)
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147 if (nakedUse)
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148 gIR->usedArray.push_back(DtoBitCast(gvar, getVoidPtrType()));
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149
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150 // initialize
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151 DtoConstInitGlobal(this);
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152 }
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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 void TypedefDeclaration::codegen(Ir*)
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158 {
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159 Logger::print("TypedefDeclaration::toObjFile: %s\n", toChars());
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160 LOG_SCOPE;
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161
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162 // generate typeinfo
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163 DtoTypeInfoOf(type, false);
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164 }
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165
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166 /* ================================================================== */
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167
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168 void EnumDeclaration::codegen(Ir*)
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169 {
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170 Logger::println("Ignoring EnumDeclaration::toObjFile for %s", toChars());
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171 }
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172
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173 /* ================================================================== */
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174
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175 void FuncDeclaration::codegen(Ir* p)
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176 {
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177 // don't touch function aliases, they don't contribute any new symbols
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178 if (!isFuncAliasDeclaration())
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179 {
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180 DtoResolveDsymbol(this);
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181 }
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182 }
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183
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184 /* ================================================================== */
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185
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186 void TemplateInstance::codegen(Ir* p)
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187 {
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188 #if LOG
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189 printf("TemplateInstance::toObjFile('%s', this = %p)\n", toChars(), this);
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190 #endif
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191 if (!errors && members)
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192 {
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193 for (int i = 0; i < members->dim; i++)
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194 {
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195 Dsymbol *s = (Dsymbol *)members->data[i];
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196 s->codegen(p);
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197 }
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198 }
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199 }
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200
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201 /* ================================================================== */
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202
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203 void TemplateMixin::codegen(Ir* p)
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204 {
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205 TemplateInstance::codegen(p);
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206 }
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207
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208 /* ================================================================== */
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209
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210 void AttribDeclaration::codegen(Ir* p)
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211 {
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212 Array *d = include(NULL, NULL);
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213
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214 if (d)
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215 {
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216 for (unsigned i = 0; i < d->dim; i++)
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217 { Dsymbol *s = (Dsymbol *)d->data[i];
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218 s->codegen(p);
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219 }
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220 }
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221 }
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222
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223 /* ================================================================== */
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224
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225 void obj_includelib(const char* lib);
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226
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227 void PragmaDeclaration::codegen(Ir* p)
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228 {
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229 if (ident == Id::lib)
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230 {
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231 assert(args && args->dim == 1);
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232
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233 Expression *e = (Expression *)args->data[0];
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234
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235 assert(e->op == TOKstring);
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236
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237 StringExp *se = (StringExp *)e;
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238 char *name = (char *)mem.malloc(se->len + 1);
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239 memcpy(name, se->string, se->len);
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240 name[se->len] = 0;
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241 obj_includelib(name);
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diff changeset
242 }
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243 AttribDeclaration::codegen(p);
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244 }
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245
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246 /* ================================================================== */