Mercurial > projects > ldc
annotate gen/classes.cpp @ 110:e8da7856a260 trunk
[svn r114] Implemented the ClassInfo.offTi member.
| author | lindquist |
|---|---|
| date | Thu, 22 Nov 2007 21:01:01 +0100 |
| parents | 5b5194b25f33 |
| children | a7ae554ce4f4 |
| rev | line source |
|---|---|
| 100 | 1 #include "gen/llvm.h" |
| 2 | |
| 3 #include "mtype.h" | |
| 4 #include "aggregate.h" | |
| 5 #include "init.h" | |
| 6 #include "declaration.h" | |
| 7 | |
| 8 #include "gen/irstate.h" | |
| 9 #include "gen/tollvm.h" | |
| 10 #include "gen/arrays.h" | |
| 11 #include "gen/logger.h" | |
| 12 #include "gen/classes.h" | |
|
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13 #include "gen/functions.h" |
| 100 | 14 |
| 15 ////////////////////////////////////////////////////////////////////////////////////////// | |
| 16 | |
| 17 static void LLVM_AddBaseClassData(BaseClasses* bcs) | |
| 18 { | |
| 19 // add base class data members first | |
| 20 for (int j=0; j<bcs->dim; j++) | |
| 21 { | |
| 22 BaseClass* bc = (BaseClass*)(bcs->data[j]); | |
| 23 assert(bc); | |
| 24 Logger::println("Adding base class members of %s", bc->base->toChars()); | |
| 25 LOG_SCOPE; | |
| 26 | |
| 27 LLVM_AddBaseClassData(&bc->base->baseclasses); | |
| 28 for (int k=0; k < bc->base->members->dim; k++) { | |
| 29 Dsymbol* dsym = (Dsymbol*)(bc->base->members->data[k]); | |
| 30 if (dsym->isVarDeclaration()) | |
| 31 { | |
| 32 dsym->toObjFile(); | |
| 33 } | |
| 34 } | |
| 35 } | |
| 36 } | |
| 37 | |
| 38 ////////////////////////////////////////////////////////////////////////////////////////// | |
| 39 | |
|
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40 void DtoResolveClass(ClassDeclaration* cd) |
| 100 | 41 { |
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42 if (cd->llvmResolved) return; |
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43 cd->llvmResolved = true; |
| 100 | 44 |
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45 // first resolve the base class |
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46 if (cd->baseClass) { |
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47 DtoResolveClass(cd->baseClass); |
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48 } |
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49 // resolve typeinfo |
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50 //DtoResolveClass(ClassDeclaration::typeinfo); |
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51 // resolve classinfo |
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52 //DtoResolveClass(ClassDeclaration::classinfo); |
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53 |
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54 Logger::println("DtoResolveClass(%s)", cd->toPrettyChars()); |
| 100 | 55 LOG_SCOPE; |
| 56 | |
| 57 assert(cd->type->ty == Tclass); | |
| 58 TypeClass* ts = (TypeClass*)cd->type; | |
| 59 | |
| 60 assert(!cd->llvmIRStruct); | |
| 61 IRStruct* irstruct = new IRStruct(ts); | |
| 62 cd->llvmIRStruct = irstruct; | |
| 63 | |
| 64 gIR->structs.push_back(irstruct); | |
| 65 gIR->classes.push_back(cd); | |
| 66 | |
| 67 // add vtable | |
|
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68 ts->llvmVtblType = new llvm::PATypeHolder(llvm::OpaqueType::get()); |
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69 const llvm::Type* vtabty = llvm::PointerType::get(ts->llvmVtblType->get()); |
| 100 | 70 |
| 71 std::vector<const llvm::Type*> fieldtypes; | |
| 72 fieldtypes.push_back(vtabty); | |
| 73 | |
| 74 // base classes first | |
| 75 LLVM_AddBaseClassData(&cd->baseclasses); | |
| 76 | |
| 77 // then add own members | |
| 78 for (int k=0; k < cd->members->dim; k++) { | |
| 79 Dsymbol* dsym = (Dsymbol*)(cd->members->data[k]); | |
| 80 dsym->toObjFile(); | |
| 81 } | |
| 82 | |
| 83 // add field types | |
| 84 for (IRStruct::OffsetMap::iterator i=irstruct->offsets.begin(); i!=irstruct->offsets.end(); ++i) { | |
| 85 fieldtypes.push_back(i->second.type); | |
| 86 } | |
| 87 | |
| 88 const llvm::StructType* structtype = llvm::StructType::get(fieldtypes); | |
| 89 // refine abstract types for stuff like: class C {C next;} | |
| 90 assert(irstruct->recty != 0); | |
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91 |
| 100 | 92 llvm::PATypeHolder& spa = irstruct->recty; |
| 93 llvm::cast<llvm::OpaqueType>(spa.get())->refineAbstractTypeTo(structtype); | |
| 94 structtype = isaStruct(spa.get()); | |
| 95 | |
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96 if (!ts->llvmType) |
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97 ts->llvmType = new llvm::PATypeHolder(structtype); |
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98 else |
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99 *ts->llvmType = structtype; |
| 100 | 100 |
| 101 bool needs_definition = false; | |
| 102 if (cd->parent->isModule()) { | |
| 103 gIR->module->addTypeName(cd->mangle(), ts->llvmType->get()); | |
| 104 needs_definition = (cd->getModule() == gIR->dmodule); | |
| 105 } | |
| 106 else { | |
| 107 assert(0 && "class parent is not a module"); | |
| 108 } | |
| 109 | |
| 110 // generate vtable | |
| 111 llvm::GlobalVariable* svtblVar = 0; | |
| 112 std::vector<const llvm::Type*> sinits_ty; | |
| 113 | |
| 114 for (int k=0; k < cd->vtbl.dim; k++) | |
| 115 { | |
| 116 Dsymbol* dsym = (Dsymbol*)cd->vtbl.data[k]; | |
| 117 assert(dsym); | |
| 118 //Logger::cout() << "vtblsym: " << dsym->toChars() << '\n'; | |
| 119 | |
| 120 if (FuncDeclaration* fd = dsym->isFuncDeclaration()) { | |
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121 DtoResolveFunction(fd); |
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122 assert(fd->type->ty == Tfunction); |
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123 TypeFunction* tf = (TypeFunction*)fd->type; |
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124 const llvm::Type* fpty = llvm::PointerType::get(tf->llvmType->get()); |
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125 sinits_ty.push_back(fpty); |
| 100 | 126 } |
| 127 else if (ClassDeclaration* cd = dsym->isClassDeclaration()) { | |
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128 //Logger::println("*** ClassDeclaration in vtable: %s", cd->toChars()); |
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129 const llvm::Type* cinfoty; |
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130 if (cd != ClassDeclaration::classinfo) { |
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131 cd = ClassDeclaration::classinfo; |
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132 DtoResolveClass(cd); |
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133 cinfoty = cd->type->llvmType->get(); |
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134 } |
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135 else { |
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136 cinfoty = ts->llvmType->get(); |
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137 } |
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138 const llvm::Type* cty = llvm::PointerType::get(cd->type->llvmType->get()); |
| 100 | 139 sinits_ty.push_back(cty); |
| 140 } | |
| 141 else | |
| 142 assert(0); | |
| 143 } | |
| 144 | |
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145 assert(!sinits_ty.empty()); |
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146 const llvm::StructType* svtbl_ty = llvm::StructType::get(sinits_ty); |
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147 |
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148 std::string styname(cd->mangle()); |
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149 styname.append("__vtblType"); |
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150 gIR->module->addTypeName(styname, svtbl_ty); |
| 100 | 151 |
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152 // refine for final vtable type |
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153 llvm::cast<llvm::OpaqueType>(ts->llvmVtblType->get())->refineAbstractTypeTo(svtbl_ty); |
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154 |
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155 gIR->classes.pop_back(); |
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156 gIR->structs.pop_back(); |
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157 |
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158 gIR->declareList.push_back(cd); |
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159 } |
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160 |
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161 ////////////////////////////////////////////////////////////////////////////////////////// |
| 100 | 162 |
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163 void DtoDeclareClass(ClassDeclaration* cd) |
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164 { |
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165 if (cd->llvmDeclared) return; |
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166 cd->llvmDeclared = true; |
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167 |
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168 Logger::println("DtoDeclareClass(%s)", cd->toPrettyChars()); |
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169 LOG_SCOPE; |
| 100 | 170 |
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171 assert(cd->type->ty == Tclass); |
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172 TypeClass* ts = (TypeClass*)cd->type; |
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173 |
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174 assert(cd->llvmIRStruct); |
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175 IRStruct* irstruct = cd->llvmIRStruct; |
| 100 | 176 |
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177 gIR->structs.push_back(irstruct); |
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178 gIR->classes.push_back(cd); |
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179 |
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180 bool needs_definition = false; |
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181 if (cd->parent->isModule()) { |
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182 needs_definition = (cd->getModule() == gIR->dmodule); |
| 100 | 183 } |
| 184 | |
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185 // vtable |
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186 std::string varname("_D"); |
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187 varname.append(cd->mangle()); |
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188 varname.append("6__vtblZ"); |
| 100 | 189 |
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190 std::string styname(cd->mangle()); |
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191 styname.append("__vtblTy"); |
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192 |
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193 llvm::GlobalValue::LinkageTypes _linkage = llvm::GlobalValue::ExternalLinkage; |
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194 |
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195 const llvm::StructType* svtbl_ty = isaStruct(ts->llvmVtblType->get()); |
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196 cd->llvmVtbl = new llvm::GlobalVariable(svtbl_ty, true, _linkage, 0, varname, gIR->module); |
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197 |
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198 // init |
| 100 | 199 std::string initname("_D"); |
| 200 initname.append(cd->mangle()); | |
| 201 initname.append("6__initZ"); | |
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202 |
| 100 | 203 llvm::GlobalVariable* initvar = new llvm::GlobalVariable(ts->llvmType->get(), true, _linkage, NULL, initname, gIR->module); |
| 204 ts->llvmInit = initvar; | |
| 205 | |
| 206 gIR->classes.pop_back(); | |
| 207 gIR->structs.pop_back(); | |
| 208 | |
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209 gIR->constInitList.push_back(cd); |
| 100 | 210 if (needs_definition) |
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211 gIR->defineList.push_back(cd); |
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212 |
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213 // classinfo |
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214 DtoDeclareClassInfo(cd); |
| 106 | 215 |
| 216 // typeinfo | |
| 217 if (cd->parent->isModule() && cd->getModule() == gIR->dmodule) | |
| 218 cd->type->getTypeInfo(NULL); | |
| 100 | 219 } |
| 220 | |
| 221 ////////////////////////////////////////////////////////////////////////////////////////// | |
| 222 | |
| 223 void DtoConstInitClass(ClassDeclaration* cd) | |
| 224 { | |
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225 if (cd->llvmInitialized) return; |
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226 cd->llvmInitialized = true; |
| 100 | 227 |
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228 Logger::println("DtoConstInitClass(%s)", cd->toPrettyChars()); |
| 100 | 229 LOG_SCOPE; |
| 230 | |
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231 IRStruct* irstruct = cd->llvmIRStruct; |
| 100 | 232 gIR->structs.push_back(irstruct); |
| 233 gIR->classes.push_back(cd); | |
| 234 | |
| 235 // make sure each offset knows its default initializer | |
| 236 for (IRStruct::OffsetMap::iterator i=irstruct->offsets.begin(); i!=irstruct->offsets.end(); ++i) | |
| 237 { | |
| 238 IRStruct::Offset* so = &i->second; | |
| 239 llvm::Constant* finit = DtoConstFieldInitializer(so->var->type, so->var->init); | |
| 240 so->init = finit; | |
| 241 so->var->llvmConstInit = finit; | |
| 242 } | |
| 243 | |
| 244 // fill out fieldtypes/inits | |
| 245 std::vector<llvm::Constant*> fieldinits; | |
| 246 | |
| 247 // first field is always the vtable | |
| 248 assert(cd->llvmVtbl != 0); | |
| 249 fieldinits.push_back(cd->llvmVtbl); | |
| 250 | |
| 251 // rest | |
| 252 for (IRStruct::OffsetMap::iterator i=irstruct->offsets.begin(); i!=irstruct->offsets.end(); ++i) { | |
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253 Logger::println("adding fieldinit for: %s", i->second.var->toChars()); |
| 100 | 254 fieldinits.push_back(i->second.init); |
| 255 } | |
| 256 | |
| 257 // get the struct (class) type | |
| 258 assert(cd->type->ty == Tclass); | |
| 259 TypeClass* ts = (TypeClass*)cd->type; | |
| 260 const llvm::StructType* structtype = isaStruct(ts->llvmType->get()); | |
| 261 | |
| 262 // generate initializer | |
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263 /*Logger::cout() << cd->toPrettyChars() << " | " << *structtype << '\n'; |
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264 |
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265 for(size_t i=0; i<structtype->getNumElements(); ++i) { |
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266 Logger::cout() << "s#" << i << " = " << *structtype->getElementType(i) << '\n'; |
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267 } |
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268 |
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269 for(size_t i=0; i<fieldinits.size(); ++i) { |
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270 Logger::cout() << "i#" << i << " = " << *fieldinits[i]->getType() << '\n'; |
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271 }*/ |
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272 |
| 100 | 273 llvm::Constant* _init = llvm::ConstantStruct::get(structtype, fieldinits); |
| 274 assert(_init); | |
| 275 cd->llvmInitZ = _init; | |
| 276 | |
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277 // generate vtable initializer |
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278 std::vector<llvm::Constant*> sinits; |
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279 |
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280 for (int k=0; k < cd->vtbl.dim; k++) |
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281 { |
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282 Dsymbol* dsym = (Dsymbol*)cd->vtbl.data[k]; |
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283 assert(dsym); |
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284 //Logger::cout() << "vtblsym: " << dsym->toChars() << '\n'; |
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285 |
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286 if (FuncDeclaration* fd = dsym->isFuncDeclaration()) { |
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287 DtoForceDeclareDsymbol(fd); |
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288 assert(fd->llvmValue); |
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289 llvm::Constant* c = llvm::cast<llvm::Constant>(fd->llvmValue); |
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290 sinits.push_back(c); |
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291 } |
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292 else if (ClassDeclaration* cd2 = dsym->isClassDeclaration()) { |
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293 assert(cd->llvmClass); |
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294 llvm::Constant* c = cd->llvmClass; |
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295 sinits.push_back(c); |
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296 } |
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297 else |
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298 assert(0); |
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299 } |
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300 |
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301 const llvm::StructType* svtbl_ty = isaStruct(ts->llvmVtblType->get()); |
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302 |
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303 /*for (size_t i=0; i< sinits.size(); ++i) |
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304 { |
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305 Logger::cout() << "field[" << i << "] = " << *svtbl_ty->getElementType(i) << '\n'; |
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306 Logger::cout() << "init [" << i << "] = " << *sinits[i]->getType() << '\n'; |
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307 assert(svtbl_ty->getElementType(i) == sinits[i]->getType()); |
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308 }*/ |
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309 |
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310 llvm::Constant* cvtblInit = llvm::ConstantStruct::get(svtbl_ty, sinits); |
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311 cd->llvmConstVtbl = llvm::cast<llvm::ConstantStruct>(cvtblInit); |
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312 |
| 100 | 313 gIR->classes.pop_back(); |
| 314 gIR->structs.pop_back(); | |
| 315 } | |
| 316 | |
| 317 ////////////////////////////////////////////////////////////////////////////////////////// | |
| 318 | |
| 319 void DtoDefineClass(ClassDeclaration* cd) | |
| 320 { | |
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321 if (cd->llvmDefined) return; |
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322 cd->llvmDefined = true; |
| 100 | 323 |
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324 Logger::println("DtoDefineClass(%s)", cd->toPrettyChars()); |
| 100 | 325 LOG_SCOPE; |
| 326 | |
| 327 // get the struct (class) type | |
| 328 assert(cd->type->ty == Tclass); | |
| 329 TypeClass* ts = (TypeClass*)cd->type; | |
| 330 | |
| 331 bool def = false; | |
| 332 if (cd->parent->isModule() && cd->getModule() == gIR->dmodule) { | |
| 333 ts->llvmInit->setInitializer(cd->llvmInitZ); | |
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334 cd->llvmVtbl->setInitializer(cd->llvmConstVtbl); |
| 100 | 335 def = true; |
| 336 } | |
| 337 | |
| 338 // generate classinfo | |
| 339 if (def) DtoDefineClassInfo(cd); | |
| 340 } | |
| 341 | |
| 342 ////////////////////////////////////////////////////////////////////////////////////////// | |
| 343 | |
| 344 void DtoCallClassDtors(TypeClass* tc, llvm::Value* instance) | |
| 345 { | |
| 346 Array* arr = &tc->sym->dtors; | |
| 347 for (size_t i=0; i<arr->dim; i++) | |
| 348 { | |
| 349 FuncDeclaration* fd = (FuncDeclaration*)arr->data[i]; | |
| 350 assert(fd->llvmValue); | |
| 351 new llvm::CallInst(fd->llvmValue, instance, "", gIR->scopebb()); | |
| 352 } | |
| 353 } | |
| 354 | |
| 355 ////////////////////////////////////////////////////////////////////////////////////////// | |
| 356 | |
| 357 void DtoInitClass(TypeClass* tc, llvm::Value* dst) | |
| 358 { | |
| 359 assert(gIR); | |
| 360 | |
| 361 assert(tc->llvmType); | |
| 362 uint64_t size_t_size = gTargetData->getTypeSize(DtoSize_t()); | |
| 363 uint64_t n = gTargetData->getTypeSize(tc->llvmType->get()) - size_t_size; | |
| 364 | |
| 365 // set vtable field | |
| 366 llvm::Value* vtblvar = DtoGEPi(dst,0,0,"tmp",gIR->scopebb()); | |
| 367 assert(tc->sym->llvmVtbl); | |
| 368 new llvm::StoreInst(tc->sym->llvmVtbl, vtblvar, gIR->scopebb()); | |
| 369 | |
| 370 // copy the static initializer | |
| 371 if (n > 0) { | |
| 372 assert(tc->llvmInit); | |
| 373 assert(dst->getType() == tc->llvmInit->getType()); | |
| 374 | |
| 375 llvm::Type* arrty = llvm::PointerType::get(llvm::Type::Int8Ty); | |
| 376 | |
| 377 llvm::Value* dstarr = new llvm::BitCastInst(dst,arrty,"tmp",gIR->scopebb()); | |
| 378 dstarr = DtoGEPi(dstarr,size_t_size,"tmp",gIR->scopebb()); | |
| 379 | |
| 380 llvm::Value* srcarr = new llvm::BitCastInst(tc->llvmInit,arrty,"tmp",gIR->scopebb()); | |
| 381 srcarr = DtoGEPi(srcarr,size_t_size,"tmp",gIR->scopebb()); | |
| 382 | |
| 383 llvm::Function* fn = LLVM_DeclareMemCpy32(); | |
| 384 std::vector<llvm::Value*> llargs; | |
| 385 llargs.resize(4); | |
| 386 llargs[0] = dstarr; | |
| 387 llargs[1] = srcarr; | |
| 388 llargs[2] = llvm::ConstantInt::get(llvm::Type::Int32Ty, n, false); | |
| 389 llargs[3] = llvm::ConstantInt::get(llvm::Type::Int32Ty, 0, false); | |
| 390 | |
| 391 new llvm::CallInst(fn, llargs.begin(), llargs.end(), "", gIR->scopebb()); | |
| 392 } | |
| 393 } | |
| 394 | |
| 395 ////////////////////////////////////////////////////////////////////////////////////////// | |
| 396 | |
| 397 void DtoDeclareClassInfo(ClassDeclaration* cd) | |
| 398 { | |
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399 if (cd->llvmClassDeclared) return; |
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400 cd->llvmClassDeclared = true; |
| 100 | 401 |
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402 Logger::println("DtoDeclareClassInfo(%s)", cd->toChars()); |
| 100 | 403 LOG_SCOPE; |
| 404 | |
| 405 ClassDeclaration* cinfo = ClassDeclaration::classinfo; | |
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406 DtoResolveClass(cinfo); |
| 100 | 407 |
| 408 std::string gname("_D"); | |
| 409 gname.append(cd->mangle()); | |
| 410 gname.append("7__ClassZ"); | |
| 411 | |
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412 const llvm::Type* st = cinfo->type->llvmType->get(); |
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413 |
| 100 | 414 cd->llvmClass = new llvm::GlobalVariable(st, true, llvm::GlobalValue::ExternalLinkage, NULL, gname, gIR->module); |
| 415 } | |
| 416 | |
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417 static llvm::Constant* build_offti_entry(VarDeclaration* vd) |
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418 { |
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419 std::vector<const llvm::Type*> types; |
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420 std::vector<llvm::Constant*> inits; |
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421 |
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422 types.push_back(DtoSize_t()); |
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423 |
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424 size_t offset = vd->offset; // TODO might not be the true offset |
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425 // dmd only accounts for the vtable, not classinfo or monitor |
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426 if (global.params.is64bit) |
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427 offset += 8; |
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428 else |
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429 offset += 4; |
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430 inits.push_back(DtoConstSize_t(offset)); |
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431 |
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432 vd->type->getTypeInfo(NULL); |
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433 assert(vd->type->vtinfo); |
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434 DtoForceDeclareDsymbol(vd->type->vtinfo); |
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435 llvm::Constant* c = isaConstant(vd->type->vtinfo->llvmValue); |
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436 |
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437 const llvm::Type* tiTy = llvm::PointerType::get(Type::typeinfo->type->llvmType->get()); |
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438 Logger::cout() << "tiTy = " << *tiTy << '\n'; |
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439 |
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440 types.push_back(tiTy); |
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441 inits.push_back(llvm::ConstantExpr::getBitCast(c, tiTy)); |
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442 |
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443 const llvm::StructType* sTy = llvm::StructType::get(types); |
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444 return llvm::ConstantStruct::get(sTy, inits); |
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445 } |
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446 |
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447 static llvm::Constant* build_offti_array(ClassDeclaration* cd, llvm::Constant* init) |
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448 { |
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449 const llvm::StructType* initTy = isaStruct(init->getType()); |
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450 assert(initTy); |
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451 |
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452 std::vector<llvm::Constant*> arrayInits; |
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453 for (ClassDeclaration *cd2 = cd; cd2; cd2 = cd2->baseClass) |
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454 { |
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455 if (cd2->members) |
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456 { |
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457 for (size_t i = 0; i < cd2->members->dim; i++) |
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458 { |
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459 Dsymbol *sm = (Dsymbol *)cd2->members->data[i]; |
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460 if (VarDeclaration* vd = sm->isVarDeclaration()) |
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461 { |
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462 llvm::Constant* c = build_offti_entry(vd); |
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463 assert(c); |
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464 arrayInits.push_back(c); |
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465 } |
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466 } |
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467 } |
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468 } |
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469 |
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470 size_t ninits = arrayInits.size(); |
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471 llvm::Constant* size = DtoConstSize_t(ninits); |
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472 llvm::Constant* ptr; |
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473 |
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474 if (ninits > 0) { |
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475 // OffsetTypeInfo type |
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476 std::vector<const llvm::Type*> elemtypes; |
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477 elemtypes.push_back(DtoSize_t()); |
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478 const llvm::Type* tiTy = llvm::PointerType::get(Type::typeinfo->type->llvmType->get()); |
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479 elemtypes.push_back(tiTy); |
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480 const llvm::StructType* sTy = llvm::StructType::get(elemtypes); |
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481 |
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482 // array type |
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483 const llvm::ArrayType* arrTy = llvm::ArrayType::get(sTy, ninits); |
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484 llvm::Constant* arrInit = llvm::ConstantArray::get(arrTy, arrayInits); |
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485 |
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486 std::string name(cd->type->vtinfo->toChars()); |
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487 name.append("__OffsetTypeInfos"); |
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488 llvm::GlobalVariable* gvar = new llvm::GlobalVariable(arrTy,true,llvm::GlobalValue::InternalLinkage,arrInit,name,gIR->module); |
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489 ptr = llvm::ConstantExpr::getBitCast(gvar, llvm::PointerType::get(sTy)); |
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490 } |
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491 else { |
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492 ptr = llvm::ConstantPointerNull::get(isaPointer(initTy->getElementType(1))); |
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493 } |
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494 |
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495 return DtoConstSlice(size, ptr); |
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496 } |
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497 |
| 100 | 498 void DtoDefineClassInfo(ClassDeclaration* cd) |
| 499 { | |
| 500 // The layout is: | |
| 501 // { | |
| 502 // void **vptr; | |
| 503 // monitor_t monitor; | |
| 504 // byte[] initializer; // static initialization data | |
| 505 // char[] name; // class name | |
| 506 // void *[] vtbl; | |
| 507 // Interface[] interfaces; | |
| 508 // ClassInfo *base; // base class | |
| 509 // void *destructor; | |
| 510 // void *invariant; // class invariant | |
| 511 // uint flags; | |
| 512 // void *deallocator; | |
| 513 // OffsetTypeInfo[] offTi; | |
| 514 // void *defaultConstructor; | |
| 515 // } | |
| 516 | |
|
102
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517 if (cd->llvmClassDefined) return; |
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518 cd->llvmClassDefined = true; |
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519 |
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520 Logger::println("DtoDefineClassInfo(%s)", cd->toChars()); |
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521 LOG_SCOPE; |
| 100 | 522 |
|
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523 assert(cd->type->ty == Tclass); |
| 100 | 524 assert(cd->llvmClass); |
|
102
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525 assert(cd->llvmInitZ); |
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526 assert(cd->llvmVtbl); |
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527 assert(cd->llvmConstVtbl); |
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528 |
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529 TypeClass* cdty = (TypeClass*)cd->type; |
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530 assert(cdty->llvmInit); |
| 100 | 531 |
| 532 // holds the list of initializers for llvm | |
| 533 std::vector<llvm::Constant*> inits; | |
| 534 | |
| 535 ClassDeclaration* cinfo = ClassDeclaration::classinfo; | |
|
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536 DtoForceConstInitDsymbol(cinfo); |
| 100 | 537 assert(cinfo->llvmInitZ); |
| 538 | |
| 539 llvm::Constant* c; | |
| 540 | |
| 541 // own vtable | |
| 542 c = cinfo->llvmInitZ->getOperand(0); | |
| 543 assert(c); | |
| 544 inits.push_back(c); | |
| 545 | |
| 546 // monitor | |
| 547 // TODO no monitors yet | |
| 548 | |
|
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549 // byte[] init |
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550 const llvm::Type* byteptrty = llvm::PointerType::get(llvm::Type::Int8Ty); |
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551 c = llvm::ConstantExpr::getBitCast(cdty->llvmInit, byteptrty); |
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552 assert(!cd->llvmInitZ->getType()->isAbstract()); |
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553 size_t initsz = gTargetData->getTypeSize(cd->llvmInitZ->getType()); |
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554 c = DtoConstSlice(DtoConstSize_t(initsz), c); |
| 100 | 555 inits.push_back(c); |
| 556 | |
| 557 // class name | |
| 558 // from dmd | |
| 559 char *name = cd->ident->toChars(); | |
| 560 size_t namelen = strlen(name); | |
| 561 if (!(namelen > 9 && memcmp(name, "TypeInfo_", 9) == 0)) | |
| 562 { | |
| 563 name = cd->toPrettyChars(); | |
| 564 namelen = strlen(name); | |
| 565 } | |
| 566 c = DtoConstString(name); | |
| 567 inits.push_back(c); | |
| 568 | |
| 569 // vtbl array | |
|
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570 const llvm::Type* byteptrptrty = llvm::PointerType::get(byteptrty); |
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571 assert(!cd->llvmVtbl->getType()->isAbstract()); |
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572 c = llvm::ConstantExpr::getBitCast(cd->llvmVtbl, byteptrptrty); |
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573 assert(!cd->llvmConstVtbl->getType()->isAbstract()); |
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574 size_t vtblsz = gTargetData->getTypeSize(cd->llvmConstVtbl->getType()); |
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575 c = DtoConstSlice(DtoConstSize_t(vtblsz), c); |
| 100 | 576 inits.push_back(c); |
| 577 | |
| 578 // interfaces array | |
|
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579 // TODO |
| 100 | 580 c = cinfo->llvmInitZ->getOperand(4); |
| 581 inits.push_back(c); | |
| 582 | |
| 583 // base classinfo | |
|
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584 if (cd->baseClass) { |
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585 DtoDeclareClassInfo(cd->baseClass); |
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586 c = cd->baseClass->llvmClass; |
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587 assert(c); |
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588 inits.push_back(c); |
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589 } |
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590 else { |
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591 // null |
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592 c = cinfo->llvmInitZ->getOperand(5); |
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593 inits.push_back(c); |
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594 } |
| 100 | 595 |
| 596 // destructor | |
|
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597 // TODO |
| 100 | 598 c = cinfo->llvmInitZ->getOperand(6); |
| 599 inits.push_back(c); | |
| 600 | |
| 601 // invariant | |
|
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602 // TODO |
| 100 | 603 c = cinfo->llvmInitZ->getOperand(7); |
| 604 inits.push_back(c); | |
| 605 | |
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606 // uint flags, adapted from original dmd code |
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607 uint flags = 0; |
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608 //flags |= 4; // has offTi |
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609 //flags |= isCOMclass(); // IUnknown |
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610 if (cd->ctor) flags |= 8; |
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611 for (ClassDeclaration *cd2 = cd; cd2; cd2 = cd2->baseClass) |
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612 { |
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613 if (cd2->members) |
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614 { |
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615 for (size_t i = 0; i < cd2->members->dim; i++) |
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616 { |
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617 Dsymbol *sm = (Dsymbol *)cd2->members->data[i]; |
| 106 | 618 //printf("sm = %s %s\n", sm->kind(), sm->toChars()); |
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619 if (sm->hasPointers()) |
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620 goto L2; |
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621 } |
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622 } |
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623 } |
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624 flags |= 2; // no pointers |
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625 L2: |
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626 c = DtoConstUint(flags); |
| 100 | 627 inits.push_back(c); |
| 628 | |
| 629 // allocator | |
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630 // TODO |
| 100 | 631 c = cinfo->llvmInitZ->getOperand(9); |
| 632 inits.push_back(c); | |
| 633 | |
| 634 // offset typeinfo | |
|
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635 // TODO |
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636 c = build_offti_array(cd, cinfo->llvmInitZ->getOperand(10)); |
| 100 | 637 inits.push_back(c); |
| 638 | |
| 639 // default constructor | |
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640 // TODO |
| 100 | 641 c = cinfo->llvmInitZ->getOperand(11); |
| 642 inits.push_back(c); | |
| 643 | |
| 644 /*size_t n = inits.size(); | |
| 645 for (size_t i=0; i<n; ++i) | |
| 646 { | |
| 647 Logger::cout() << "inits[" << i << "]: " << *inits[i] << '\n'; | |
| 648 }*/ | |
| 649 | |
| 650 // build the initializer | |
| 651 const llvm::StructType* st = isaStruct(cinfo->llvmInitZ->getType()); | |
| 652 llvm::Constant* finalinit = llvm::ConstantStruct::get(st, inits); | |
| 653 //Logger::cout() << "built the classinfo initializer:\n" << *finalinit <<'\n'; | |
| 654 | |
| 655 cd->llvmClassZ = finalinit; | |
| 656 cd->llvmClass->setInitializer(finalinit); | |
| 657 } |