Mercurial > projects > ldc
annotate gen/toobj.c @ 81:3587401b6eeb trunk
[svn r85] Fixed: if a return statement appeared in the try block of a nested try-finally, only the inner-most finally block would be executed.
Changed: Renamed all the LLVM_Dto... helper function to just Dto...
| author | lindquist |
|---|---|
| date | Thu, 01 Nov 2007 17:27:18 +0100 |
| parents | 714057ff2dbb |
| children | d8dd47ef3973 |
| rev | line source |
|---|---|
| 1 | 1 |
| 2 // Copyright (c) 1999-2004 by Digital Mars | |
| 3 // All Rights Reserved | |
| 4 // written by Walter Bright | |
| 5 // www.digitalmars.com | |
| 6 // License for redistribution is by either the Artistic License | |
| 7 // in artistic.txt, or the GNU General Public License in gnu.txt. | |
| 8 // See the included readme.txt for details. | |
| 9 | |
| 10 #include <cstddef> | |
| 11 #include <iostream> | |
| 12 #include <fstream> | |
| 13 | |
| 40 | 14 #include "gen/llvm.h" |
| 1 | 15 #include "llvm/Analysis/Verifier.h" |
| 16 #include "llvm/Bitcode/ReaderWriter.h" | |
| 17 #include "llvm/Target/TargetMachine.h" | |
| 18 #include "llvm/Target/TargetMachineRegistry.h" | |
| 19 | |
| 20 #include "mars.h" | |
| 21 #include "module.h" | |
| 22 #include "mtype.h" | |
| 23 #include "declaration.h" | |
| 24 #include "statement.h" | |
| 25 #include "enum.h" | |
| 26 #include "aggregate.h" | |
| 27 #include "init.h" | |
| 28 #include "attrib.h" | |
| 29 #include "id.h" | |
| 30 #include "import.h" | |
| 31 #include "template.h" | |
| 18 | 32 #include "scope.h" |
| 1 | 33 |
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34 #include "gen/irstate.h" |
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35 #include "gen/elem.h" |
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36 #include "gen/logger.h" |
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37 #include "gen/tollvm.h" |
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38 #include "gen/arrays.h" |
| 1 | 39 |
| 40 ////////////////////////////////////////////////////////////////////////////////////////// | |
| 41 | |
| 42 void | |
| 43 Module::genobjfile() | |
| 44 { | |
| 45 Logger::cout() << "Generating module: " << (md ? md->toChars() : toChars()) << '\n'; | |
| 46 LOG_SCOPE; | |
| 47 | |
| 6 | 48 // start by deleting the old object file |
| 1 | 49 deleteObjFile(); |
| 50 | |
| 18 | 51 // create a new ir state |
| 1 | 52 IRState ir; |
| 53 gIR = &ir; | |
| 54 ir.dmodule = this; | |
| 55 | |
| 6 | 56 // name the module |
| 1 | 57 std::string mname(toChars()); |
| 58 if (md != 0) | |
| 59 mname = md->toChars(); | |
| 60 ir.module = new llvm::Module(mname); | |
| 61 | |
| 6 | 62 // set target stuff |
| 1 | 63 std::string target_triple(global.params.tt_arch); |
| 64 target_triple.append(global.params.tt_os); | |
| 65 ir.module->setTargetTriple(target_triple); | |
| 66 ir.module->setDataLayout(global.params.data_layout); | |
| 67 | |
| 73 | 68 // heavily inspired by tools/llc/llc.cpp:200-230 |
| 69 const llvm::TargetMachineRegistry::Entry* targetEntry; | |
| 70 std::string targetError; | |
| 71 targetEntry = llvm::TargetMachineRegistry::getClosestStaticTargetForModule(*ir.module, targetError); | |
| 72 assert(targetEntry && "Failed to find a static target for module"); | |
| 73 std::auto_ptr<llvm::TargetMachine> targetPtr(targetEntry->CtorFn(*ir.module, "")); // TODO: replace "" with features | |
| 74 assert(targetPtr.get() && "Could not allocate target machine!"); | |
| 75 llvm::TargetMachine &targetMachine = *targetPtr.get(); | |
| 76 gTargetData = targetMachine.getTargetData(); | |
| 1 | 77 |
| 6 | 78 // process module members |
| 1 | 79 for (int k=0; k < members->dim; k++) { |
| 80 Dsymbol* dsym = (Dsymbol*)(members->data[k]); | |
| 81 assert(dsym); | |
| 82 dsym->toObjFile(); | |
| 83 } | |
| 84 | |
| 85 gTargetData = 0; | |
| 86 | |
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87 // emit the llvm main function if necessary |
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88 if (ir.emitMain) { |
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89 DtoMain(); |
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90 } |
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91 |
| 6 | 92 // verify the llvm |
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93 if (!global.params.novalidate) { |
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94 std::string verifyErr; |
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95 Logger::println("Verifying module..."); |
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96 if (llvm::verifyModule(*ir.module,llvm::ReturnStatusAction,&verifyErr)) |
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97 { |
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98 error("%s", verifyErr.c_str()); |
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99 fatal(); |
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100 } |
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101 else { |
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102 Logger::println("Verification passed!"); |
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103 } |
| 1 | 104 } |
| 105 | |
| 106 // run passes | |
| 107 // TODO | |
| 108 | |
| 52 | 109 // write bytecode |
| 110 { | |
| 111 Logger::println("Writing LLVM bitcode\n"); | |
| 112 std::ofstream bos(bcfile->name->toChars(), std::ios::binary); | |
| 113 llvm::WriteBitcodeToFile(ir.module, bos); | |
| 114 } | |
| 1 | 115 |
| 52 | 116 // disassemble ? |
| 117 if (global.params.disassemble) { | |
| 118 Logger::println("Writing LLVM asm to: %s\n", llfile->name->toChars()); | |
| 119 std::ofstream aos(llfile->name->toChars()); | |
| 120 ir.module->print(aos); | |
| 121 } | |
| 1 | 122 |
| 123 delete ir.module; | |
| 124 gIR = NULL; | |
| 125 } | |
| 126 | |
| 127 /* ================================================================== */ | |
| 128 | |
| 129 // Put out instance of ModuleInfo for this Module | |
| 130 | |
| 131 void Module::genmoduleinfo() | |
| 132 { | |
| 133 } | |
| 134 | |
| 135 /* ================================================================== */ | |
| 136 | |
| 137 void Dsymbol::toObjFile() | |
| 138 { | |
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139 Logger::println("Ignoring Dsymbol::toObjFile for %s", toChars()); |
| 1 | 140 } |
| 141 | |
| 142 /* ================================================================== */ | |
| 143 | |
| 144 void Declaration::toObjFile() | |
| 145 { | |
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146 Logger::println("Ignoring Declaration::toObjFile for %s", toChars()); |
| 1 | 147 } |
| 148 | |
| 149 /* ================================================================== */ | |
| 150 | |
| 151 void InterfaceDeclaration::toObjFile() | |
| 152 { | |
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153 Logger::println("Ignoring InterfaceDeclaration::toObjFile for %s", toChars()); |
| 1 | 154 } |
| 155 | |
| 156 /* ================================================================== */ | |
| 157 | |
| 158 void StructDeclaration::toObjFile() | |
| 159 { | |
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160 TypeStruct* ts = (TypeStruct*)DtoDType(type); |
| 1 | 161 if (llvmType != 0) |
| 162 return; | |
| 163 | |
| 164 static int sdi = 0; | |
| 165 Logger::print("StructDeclaration::toObjFile(%d): %s\n", sdi++, toChars()); | |
| 166 LOG_SCOPE; | |
| 167 | |
| 168 gIR->structs.push_back(IRStruct(ts)); | |
| 169 | |
| 170 for (int k=0; k < members->dim; k++) { | |
| 171 Dsymbol* dsym = (Dsymbol*)(members->data[k]); | |
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172 dsym->toObjFile(); |
| 1 | 173 } |
| 174 | |
| 73 | 175 Logger::println("doing struct fields"); |
| 176 | |
| 177 llvm::StructType* structtype = 0; | |
| 178 std::vector<llvm::Constant*> fieldinits; | |
| 179 | |
| 180 if (gIR->topstruct().offsets.empty()) | |
| 181 { | |
| 182 std::vector<const llvm::Type*> fieldtypes; | |
| 183 Logger::println("has no fields"); | |
| 184 fieldtypes.push_back(llvm::Type::Int8Ty); | |
| 185 fieldinits.push_back(llvm::ConstantInt::get(llvm::Type::Int8Ty, 0, false)); | |
| 186 structtype = llvm::StructType::get(fieldtypes); | |
| 187 } | |
| 188 else | |
| 23 | 189 { |
| 73 | 190 Logger::println("has fields"); |
| 191 std::vector<const llvm::Type*> fieldtypes; | |
| 192 unsigned prevsize = (unsigned)-1; | |
| 193 unsigned lastoffset = (unsigned)-1; | |
| 194 const llvm::Type* fieldtype = NULL; | |
| 195 llvm::Constant* fieldinit = NULL; | |
| 196 size_t fieldpad = 0; | |
| 197 int idx = 0; | |
| 198 for (IRStruct::OffsetMap::iterator i=gIR->topstruct().offsets.begin(); i!=gIR->topstruct().offsets.end(); ++i) { | |
| 199 // first iteration | |
| 200 if (lastoffset == (unsigned)-1) { | |
| 201 lastoffset = i->first; | |
| 202 assert(lastoffset == 0); | |
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203 fieldtype = DtoType(i->second.var->type); |
| 73 | 204 fieldinit = i->second.init; |
| 205 prevsize = gTargetData->getTypeSize(fieldtype); | |
| 206 i->second.var->llvmFieldIndex = idx; | |
| 207 } | |
| 208 // colliding offset? | |
| 209 else if (lastoffset == i->first) { | |
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210 const llvm::Type* t = DtoType(i->second.var->type); |
| 73 | 211 size_t s = gTargetData->getTypeSize(t); |
| 212 if (s > prevsize) { | |
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213 fieldpad += s - prevsize; |
| 73 | 214 prevsize = s; |
| 215 } | |
| 216 llvmHasUnions = true; | |
| 217 i->second.var->llvmFieldIndex = idx; | |
| 218 } | |
| 219 // intersecting offset? | |
| 220 else if (i->first < (lastoffset + prevsize)) { | |
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221 const llvm::Type* t = DtoType(i->second.var->type); |
| 73 | 222 size_t s = gTargetData->getTypeSize(t); |
| 223 assert((i->first + s) <= (lastoffset + prevsize)); // this holds because all types are aligned to their size | |
| 224 llvmHasUnions = true; | |
| 225 i->second.var->llvmFieldIndex = idx; | |
| 226 i->second.var->llvmFieldIndexOffset = (i->first - lastoffset) / s; | |
| 227 } | |
| 228 // fresh offset | |
| 229 else { | |
| 230 // commit the field | |
| 231 fieldtypes.push_back(fieldtype); | |
| 232 fieldinits.push_back(fieldinit); | |
| 233 if (fieldpad) { | |
| 234 // match up with below | |
| 235 std::vector<llvm::Constant*> vals(fieldpad, llvm::ConstantInt::get(llvm::Type::Int8Ty, 0, false)); | |
| 236 llvm::Constant* c = llvm::ConstantArray::get(llvm::ArrayType::get(llvm::Type::Int8Ty, fieldpad), vals); | |
| 237 fieldtypes.push_back(c->getType()); | |
| 238 fieldinits.push_back(c); | |
| 239 idx++; | |
| 240 } | |
| 241 | |
| 242 idx++; | |
| 243 | |
| 244 // start new | |
| 245 lastoffset = i->first; | |
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246 fieldtype = DtoType(i->second.var->type); |
| 73 | 247 fieldinit = i->second.init; |
| 248 prevsize = gTargetData->getTypeSize(fieldtype); | |
| 249 i->second.var->llvmFieldIndex = idx; | |
| 250 fieldpad = 0; | |
| 251 } | |
| 252 } | |
| 253 fieldtypes.push_back(fieldtype); | |
| 254 fieldinits.push_back(fieldinit); | |
| 255 if (fieldpad) { | |
| 256 // match up with above | |
| 257 std::vector<llvm::Constant*> vals(fieldpad, llvm::ConstantInt::get(llvm::Type::Int8Ty, 0, false)); | |
| 258 llvm::Constant* c = llvm::ConstantArray::get(llvm::ArrayType::get(llvm::Type::Int8Ty, fieldpad), vals); | |
| 259 fieldtypes.push_back(c->getType()); | |
| 260 fieldinits.push_back(c); | |
| 261 } | |
| 262 | |
| 263 Logger::println("creating struct type"); | |
| 264 structtype = llvm::StructType::get(fieldtypes); | |
| 23 | 265 } |
| 266 | |
| 1 | 267 // refine abstract types for stuff like: struct S{S* next;} |
| 268 if (gIR->topstruct().recty != 0) | |
| 269 { | |
| 270 llvm::PATypeHolder& pa = gIR->topstruct().recty; | |
| 271 llvm::cast<llvm::OpaqueType>(pa.get())->refineAbstractTypeTo(structtype); | |
| 272 structtype = llvm::cast<llvm::StructType>(pa.get()); | |
| 273 } | |
| 274 | |
| 275 ts->llvmType = structtype; | |
| 276 llvmType = structtype; | |
| 277 | |
| 278 if (parent->isModule()) { | |
| 279 gIR->module->addTypeName(mangle(),ts->llvmType); | |
| 280 } | |
| 281 | |
| 282 // generate static data | |
| 283 llvm::GlobalValue::LinkageTypes _linkage = llvm::GlobalValue::ExternalLinkage; | |
| 284 llvm::Constant* _init = 0; | |
| 285 | |
| 286 // always generate the constant initalizer | |
| 287 if (!zeroInit) { | |
| 288 Logger::println("Not zero initialized"); | |
| 73 | 289 //assert(tk == gIR->gIR->topstruct()().size()); |
| 1 | 290 #ifndef LLVMD_NO_LOGGER |
| 73 | 291 Logger::cout() << "struct type: " << *structtype << '\n'; |
| 292 for (size_t k=0; k<fieldinits.size(); ++k) { | |
| 1 | 293 Logger::cout() << "Type:" << '\n'; |
| 73 | 294 Logger::cout() << *fieldinits[k]->getType() << '\n'; |
| 1 | 295 Logger::cout() << "Value:" << '\n'; |
| 73 | 296 Logger::cout() << *fieldinits[k] << '\n'; |
| 1 | 297 } |
| 298 Logger::cout() << "Initializer printed" << '\n'; | |
| 299 #endif | |
| 73 | 300 llvmInitZ = llvm::ConstantStruct::get(structtype,fieldinits); |
| 1 | 301 } |
| 302 else { | |
| 303 Logger::println("Zero initialized"); | |
| 304 llvmInitZ = llvm::ConstantAggregateZero::get(structtype); | |
| 305 } | |
| 306 | |
| 307 // only provide the constant initializer for the defining module | |
| 308 if (getModule() == gIR->dmodule) | |
| 309 { | |
| 310 _init = llvmInitZ; | |
| 311 } | |
| 312 | |
| 73 | 313 std::string initname("_D"); |
| 314 initname.append(mangle()); | |
| 315 initname.append("6__initZ"); | |
| 1 | 316 llvm::GlobalVariable* initvar = new llvm::GlobalVariable(ts->llvmType, true, _linkage, _init, initname, gIR->module); |
| 317 ts->llvmInit = initvar; | |
| 318 | |
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319 // generate member function definitions |
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320 gIR->topstruct().queueFuncs = false; |
| 73 | 321 IRStruct::FuncDeclVector& mfs = gIR->topstruct().funcs; |
| 1 | 322 size_t n = mfs.size(); |
| 323 for (size_t i=0; i<n; ++i) { | |
| 324 mfs[i]->toObjFile(); | |
| 325 } | |
| 326 | |
| 327 llvmDModule = gIR->dmodule; | |
| 328 | |
| 329 gIR->structs.pop_back(); | |
| 330 | |
| 331 // generate typeinfo | |
| 73 | 332 if (getModule() == gIR->dmodule && llvmInternal != LLVMnotypeinfo) |
| 72 | 333 type->getTypeInfo(NULL); |
| 1 | 334 } |
| 335 | |
| 336 /* ================================================================== */ | |
| 337 | |
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338 static unsigned LLVM_ClassOffsetToIndex(ClassDeclaration* cd, unsigned os, unsigned& idx) |
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339 { |
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340 // start at the bottom of the inheritance chain |
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341 if (cd->baseClass != 0) { |
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342 unsigned o = LLVM_ClassOffsetToIndex(cd->baseClass, os, idx); |
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343 if (o != (unsigned)-1) |
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344 return o; |
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345 } |
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346 |
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347 // check this class |
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348 unsigned i; |
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349 for (i=0; i<cd->fields.dim; ++i) { |
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350 VarDeclaration* vd = (VarDeclaration*)cd->fields.data[i]; |
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351 if (os == vd->offset) |
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352 return i+idx; |
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353 } |
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354 idx += i; |
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355 |
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356 return (unsigned)-1; |
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357 } |
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358 |
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359 void ClassDeclaration::offsetToIndex(Type* t, unsigned os, std::vector<unsigned>& result) |
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360 { |
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361 unsigned idx = 0; |
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362 unsigned r = LLVM_ClassOffsetToIndex(this, os, idx); |
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363 assert(r != (unsigned)-1 && "Offset not found in any aggregate field"); |
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364 result.push_back(r+1); // vtable is 0 |
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365 } |
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366 |
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367 /* ================================================================== */ |
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368 |
| 1 | 369 static void LLVM_AddBaseClassData(BaseClasses* bcs) |
| 370 { | |
| 371 // add base class data members first | |
| 372 for (int j=0; j<bcs->dim; j++) | |
| 373 { | |
| 374 BaseClass* bc = (BaseClass*)(bcs->data[j]); | |
| 375 assert(bc); | |
| 40 | 376 Logger::println("Adding base class members of %s", bc->base->toChars()); |
| 377 LOG_SCOPE; | |
| 378 | |
| 1 | 379 LLVM_AddBaseClassData(&bc->base->baseclasses); |
| 380 for (int k=0; k < bc->base->members->dim; k++) { | |
| 381 Dsymbol* dsym = (Dsymbol*)(bc->base->members->data[k]); | |
| 382 if (dsym->isVarDeclaration()) | |
| 383 { | |
| 384 dsym->toObjFile(); | |
| 385 } | |
| 386 } | |
| 387 } | |
| 388 } | |
| 389 | |
| 390 void ClassDeclaration::toObjFile() | |
| 391 { | |
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392 TypeClass* ts = (TypeClass*)DtoDType(type); |
| 1 | 393 if (ts->llvmType != 0 || llvmInProgress) |
| 394 return; | |
| 395 | |
| 396 llvmInProgress = true; | |
| 397 | |
| 398 static int fdi = 0; | |
| 399 Logger::print("ClassDeclaration::toObjFile(%d): %s\n", fdi++, toChars()); | |
| 400 LOG_SCOPE; | |
| 401 | |
| 6 | 402 gIR->structs.push_back(IRStruct(ts)); |
| 1 | 403 gIR->classes.push_back(this); |
| 404 | |
| 405 // add vtable | |
| 9 | 406 llvm::PATypeHolder pa = llvm::OpaqueType::get(); |
| 407 const llvm::Type* vtabty = llvm::PointerType::get(pa); | |
| 73 | 408 |
| 409 std::vector<const llvm::Type*> fieldtypes; | |
| 410 fieldtypes.push_back(vtabty); | |
| 411 | |
| 412 std::vector<llvm::Constant*> fieldinits; | |
| 413 fieldinits.push_back(0); | |
| 1 | 414 |
| 415 // base classes first | |
| 416 LLVM_AddBaseClassData(&baseclasses); | |
| 417 | |
| 418 // then add own members | |
| 419 for (int k=0; k < members->dim; k++) { | |
| 420 Dsymbol* dsym = (Dsymbol*)(members->data[k]); | |
| 421 dsym->toObjFile(); | |
| 422 } | |
| 423 | |
| 73 | 424 // fill out fieldtypes/inits |
| 425 for (IRStruct::OffsetMap::iterator i=gIR->topstruct().offsets.begin(); i!=gIR->topstruct().offsets.end(); ++i) { | |
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426 fieldtypes.push_back(DtoType(i->second.var->type)); |
| 73 | 427 fieldinits.push_back(i->second.init); |
| 428 } | |
| 429 | |
| 430 llvm::StructType* structtype = llvm::StructType::get(fieldtypes); | |
| 6 | 431 // refine abstract types for stuff like: class C {C next;} |
| 432 if (gIR->topstruct().recty != 0) | |
| 433 { | |
| 434 llvm::PATypeHolder& pa = gIR->topstruct().recty; | |
| 435 llvm::cast<llvm::OpaqueType>(pa.get())->refineAbstractTypeTo(structtype); | |
| 436 structtype = llvm::cast<llvm::StructType>(pa.get()); | |
| 437 } | |
| 438 | |
| 1 | 439 ts->llvmType = structtype; |
| 440 llvmType = structtype; | |
| 441 | |
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442 bool needs_definition = false; |
| 1 | 443 if (parent->isModule()) { |
| 444 gIR->module->addTypeName(mangle(),ts->llvmType); | |
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445 needs_definition = (getModule() == gIR->dmodule); |
| 1 | 446 } |
| 447 else { | |
| 448 assert(0 && "class parent is not a module"); | |
| 449 } | |
| 450 | |
| 9 | 451 // generate vtable |
| 452 llvm::GlobalVariable* svtblVar = 0; | |
| 453 std::vector<llvm::Constant*> sinits; | |
| 454 std::vector<const llvm::Type*> sinits_ty; | |
| 455 sinits.reserve(vtbl.dim); | |
| 456 sinits_ty.reserve(vtbl.dim); | |
| 457 | |
| 458 for (int k=0; k < vtbl.dim; k++) | |
| 459 { | |
| 460 Dsymbol* dsym = (Dsymbol*)vtbl.data[k]; | |
| 461 assert(dsym); | |
| 462 //Logger::cout() << "vtblsym: " << dsym->toChars() << '\n'; | |
| 463 | |
| 464 if (FuncDeclaration* fd = dsym->isFuncDeclaration()) { | |
| 465 fd->toObjFile(); | |
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466 assert(fd->llvmValue); |
| 9 | 467 llvm::Constant* c = llvm::cast<llvm::Constant>(fd->llvmValue); |
| 468 sinits.push_back(c); | |
| 469 sinits_ty.push_back(c->getType()); | |
| 470 } | |
| 471 else if (ClassDeclaration* cd = dsym->isClassDeclaration()) { | |
| 472 const llvm::Type* cty = llvm::PointerType::get(llvm::Type::Int8Ty); | |
| 473 llvm::Constant* c = llvm::Constant::getNullValue(cty); | |
| 474 sinits.push_back(c); | |
| 475 sinits_ty.push_back(cty); | |
| 476 } | |
| 477 else | |
| 478 assert(0); | |
| 479 } | |
| 480 | |
| 481 const llvm::StructType* svtbl_ty = 0; | |
| 482 if (!sinits.empty()) | |
| 483 { | |
| 484 llvm::GlobalValue::LinkageTypes _linkage = llvm::GlobalValue::ExternalLinkage; | |
| 485 | |
| 52 | 486 std::string varname("_D"); |
| 487 varname.append(mangle()); | |
| 488 varname.append("6__vtblZ"); | |
| 489 | |
| 9 | 490 std::string styname(mangle()); |
| 491 styname.append("__vtblTy"); | |
| 492 | |
| 493 svtbl_ty = llvm::StructType::get(sinits_ty); | |
| 494 gIR->module->addTypeName(styname, svtbl_ty); | |
| 495 svtblVar = new llvm::GlobalVariable(svtbl_ty, true, _linkage, 0, varname, gIR->module); | |
| 496 | |
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497 llvmConstVtbl = llvm::cast<llvm::ConstantStruct>(llvm::ConstantStruct::get(svtbl_ty, sinits)); |
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498 if (needs_definition) |
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499 svtblVar->setInitializer(llvmConstVtbl); |
| 9 | 500 llvmVtbl = svtblVar; |
| 501 } | |
| 502 | |
| 503 //////////////////////////////////////////////////////////////////////////////// | |
| 504 | |
| 505 // refine for final vtable type | |
| 506 llvm::cast<llvm::OpaqueType>(pa.get())->refineAbstractTypeTo(svtbl_ty); | |
| 507 svtbl_ty = llvm::cast<llvm::StructType>(pa.get()); | |
| 508 structtype = llvm::cast<llvm::StructType>(gIR->topstruct().recty.get()); | |
| 509 ts->llvmType = structtype; | |
| 510 llvmType = structtype; | |
| 511 | |
| 512 // generate initializer | |
| 513 llvm::GlobalValue::LinkageTypes _linkage = llvm::GlobalValue::ExternalLinkage; | |
| 514 llvm::Constant* _init = 0; | |
| 515 | |
| 516 // first field is always the vtable | |
| 517 assert(svtblVar != 0); | |
| 73 | 518 fieldinits[0] = svtblVar; |
| 9 | 519 |
| 73 | 520 llvmInitZ = _init = llvm::ConstantStruct::get(structtype,fieldinits); |
| 9 | 521 assert(_init); |
| 52 | 522 |
| 523 std::string initname("_D"); | |
| 524 initname.append(mangle()); | |
| 525 initname.append("6__initZ"); | |
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526 //Logger::cout() << *_init << '\n'; |
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527 llvm::GlobalVariable* initvar = new llvm::GlobalVariable(ts->llvmType, true, _linkage, NULL, initname, gIR->module); |
| 9 | 528 ts->llvmInit = initvar; |
| 529 | |
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530 if (needs_definition) { |
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531 initvar->setInitializer(_init); |
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532 // generate member functions |
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533 gIR->topstruct().queueFuncs = false; |
| 73 | 534 IRStruct::FuncDeclVector& mfs = gIR->topstruct().funcs; |
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535 size_t n = mfs.size(); |
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536 for (size_t i=0; i<n; ++i) { |
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537 mfs[i]->toObjFile(); |
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538 } |
| 1 | 539 } |
| 540 | |
| 541 gIR->classes.pop_back(); | |
| 542 gIR->structs.pop_back(); | |
| 543 | |
| 544 llvmInProgress = false; | |
| 545 } | |
| 546 | |
| 547 /****************************************** | |
| 548 * Get offset of base class's vtbl[] initializer from start of csym. | |
| 549 * Returns ~0 if not this csym. | |
| 550 */ | |
| 551 | |
| 552 unsigned ClassDeclaration::baseVtblOffset(BaseClass *bc) | |
| 553 { | |
| 554 return ~0; | |
| 555 } | |
| 556 | |
| 557 /* ================================================================== */ | |
| 558 | |
| 559 void VarDeclaration::toObjFile() | |
| 560 { | |
| 40 | 561 Logger::print("VarDeclaration::toObjFile(): %s | %s\n", toChars(), type->toChars()); |
| 1 | 562 LOG_SCOPE; |
| 563 llvm::Module* M = gIR->module; | |
| 564 | |
| 565 // global variable or magic | |
| 40 | 566 if (isDataseg() || parent->isModule()) |
| 1 | 567 { |
| 40 | 568 if (llvmTouched) return; |
| 569 else llvmTouched = true; | |
| 570 | |
| 1 | 571 bool _isconst = isConst(); |
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572 |
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573 llvm::GlobalValue::LinkageTypes _linkage; |
| 52 | 574 if (parent && parent->isFuncDeclaration()) |
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575 _linkage = llvm::GlobalValue::InternalLinkage; |
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576 else |
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577 _linkage = DtoLinkage(protection, storage_class); |
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578 |
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579 Type* t = DtoDType(type); |
| 40 | 580 |
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581 const llvm::Type* _type = DtoType(t); |
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582 assert(_type); |
| 1 | 583 |
| 584 llvm::Constant* _init = 0; | |
| 585 bool _signed = !type->isunsigned(); | |
| 586 | |
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587 Logger::println("Creating global variable"); |
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588 std::string _name(mangle()); |
| 52 | 589 |
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590 llvm::GlobalVariable* gvar = new llvm::GlobalVariable(_type,_isconst,_linkage,0,_name,M); |
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591 llvmValue = gvar; |
| 40 | 592 |
| 52 | 593 // if extern don't emit initializer |
| 594 if (!(storage_class & STCextern)) | |
| 595 { | |
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596 _init = DtoConstInitializer(t, init); |
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597 |
| 52 | 598 //Logger::cout() << "initializer: " << *_init << '\n'; |
| 599 if (_type != _init->getType()) { | |
| 600 Logger::cout() << "got type '" << *_init->getType() << "' expected '" << *_type << "'\n"; | |
| 601 // zero initalizer | |
| 602 if (_init->isNullValue()) | |
| 603 _init = llvm::Constant::getNullValue(_type); | |
| 604 // pointer to global constant (struct.init) | |
| 605 else if (llvm::isa<llvm::GlobalVariable>(_init)) | |
| 606 { | |
| 607 assert(_init->getType()->getContainedType(0) == _type); | |
| 608 llvm::GlobalVariable* gv = llvm::cast<llvm::GlobalVariable>(_init); | |
| 609 assert(t->ty == Tstruct); | |
| 610 TypeStruct* ts = (TypeStruct*)t; | |
| 611 assert(ts->sym->llvmInitZ); | |
| 612 _init = ts->sym->llvmInitZ; | |
| 613 } | |
| 614 // array single value init | |
| 615 else if (llvm::isa<llvm::ArrayType>(_type)) | |
| 616 { | |
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617 _init = DtoConstStaticArray(_type, _init); |
| 52 | 618 } |
| 619 else { | |
| 620 Logger::cout() << "Unexpected initializer type: " << *_type << '\n'; | |
| 621 //assert(0); | |
| 622 } | |
| 1 | 623 } |
| 52 | 624 |
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625 Logger::cout() << "final init = " << *_init << '\n'; |
| 52 | 626 gvar->setInitializer(_init); |
| 1 | 627 } |
| 628 | |
| 40 | 629 llvmDModule = gIR->dmodule; |
| 1 | 630 |
| 631 //if (storage_class & STCprivate) | |
| 632 // gvar->setVisibility(llvm::GlobalValue::ProtectedVisibility); | |
| 633 } | |
| 634 | |
| 635 // inside aggregate declaration. declare a field. | |
| 636 else | |
| 637 { | |
| 638 Logger::println("Aggregate var declaration: '%s' offset=%d", toChars(), offset); | |
| 639 | |
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640 Type* t = DtoDType(type); |
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641 const llvm::Type* _type = DtoType(t); |
| 1 | 642 |
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643 llvm::Constant*_init = DtoConstInitializer(t, init); |
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644 assert(_init); |
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645 Logger::cout() << "field init is: " << *_init << " type should be " << *_type << '\n'; |
| 40 | 646 if (_type != _init->getType()) |
| 1 | 647 { |
| 40 | 648 if (t->ty == Tsarray) |
| 1 | 649 { |
| 650 const llvm::ArrayType* arrty = llvm::cast<llvm::ArrayType>(_type); | |
| 651 uint64_t n = arrty->getNumElements(); | |
| 652 std::vector<llvm::Constant*> vals(n,_init); | |
| 653 _init = llvm::ConstantArray::get(arrty, vals); | |
| 654 } | |
| 40 | 655 else if (t->ty == Tarray) |
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656 { |
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657 assert(llvm::isa<llvm::StructType>(_type)); |
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658 _init = llvm::ConstantAggregateZero::get(_type); |
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659 } |
| 40 | 660 else if (t->ty == Tstruct) |
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661 { |
| 6 | 662 const llvm::StructType* structty = llvm::cast<llvm::StructType>(_type); |
| 40 | 663 TypeStruct* ts = (TypeStruct*)t; |
| 9 | 664 assert(ts); |
| 665 assert(ts->sym); | |
| 6 | 666 assert(ts->sym->llvmInitZ); |
| 667 _init = ts->sym->llvmInitZ; | |
| 668 } | |
| 40 | 669 else if (t->ty == Tclass) |
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670 { |
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671 _init = llvm::Constant::getNullValue(_type); |
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672 } |
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673 else { |
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674 Logger::println("failed for type %s", type->toChars()); |
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675 assert(0); |
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676 } |
| 1 | 677 } |
| 73 | 678 |
| 679 // add the field in the IRStruct | |
| 680 gIR->topstruct().offsets.insert(std::make_pair(offset, IRStruct::Offset(this,_init))); | |
| 1 | 681 } |
| 682 | |
| 683 Logger::println("VarDeclaration::toObjFile is done"); | |
| 684 } | |
| 685 | |
| 686 /* ================================================================== */ | |
| 687 | |
| 688 void TypedefDeclaration::toObjFile() | |
| 689 { | |
| 690 static int tdi = 0; | |
| 691 Logger::print("TypedefDeclaration::toObjFile(%d): %s\n", tdi++, toChars()); | |
| 692 LOG_SCOPE; | |
| 693 | |
| 52 | 694 // generate typeinfo |
| 72 | 695 type->getTypeInfo(NULL); |
| 1 | 696 } |
| 697 | |
| 698 /* ================================================================== */ | |
| 699 | |
| 700 void EnumDeclaration::toObjFile() | |
| 701 { | |
|
38
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702 Logger::println("Ignoring EnumDeclaration::toObjFile for %s", toChars()); |
| 1 | 703 } |
| 704 | |
| 705 /* ================================================================== */ | |
| 706 | |
| 707 void FuncDeclaration::toObjFile() | |
| 708 { | |
| 18 | 709 if (llvmDModule) { |
| 9 | 710 assert(llvmValue != 0); |
| 1 | 711 return; |
| 712 } | |
| 713 | |
|
63
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|
714 if (isUnitTestDeclaration()) { |
|
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|
715 Logger::println("*** ATTENTION: ignoring unittest declaration: %s", toChars()); |
|
2c39b5292cf3
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716 return; |
|
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717 } |
|
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|
718 |
|
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|
719 Type* t = DtoDType(type); |
|
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720 TypeFunction* f = (TypeFunction*)t; |
|
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|
721 |
|
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|
722 bool declareOnly = false; |
|
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723 if (TemplateInstance* tinst = parent->isTemplateInstance()) { |
|
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|
724 TemplateDeclaration* tempdecl = tinst->tempdecl; |
|
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|
725 if (tempdecl->llvmInternal == LLVMva_start) |
|
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|
726 { |
|
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|
727 Logger::println("magic va_start found"); |
|
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|
728 llvmInternal = LLVMva_start; |
|
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|
729 declareOnly = true; |
|
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|
730 } |
|
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|
731 else if (tempdecl->llvmInternal == LLVMva_arg) |
|
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|
732 { |
|
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|
733 Logger::println("magic va_arg found"); |
|
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|
734 llvmInternal = LLVMva_arg; |
|
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|
735 return; |
|
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[svn r59] Added support for C-style variadic functions. Currently only works on x86, x86-64 va_arg is broken in LLVM 2.1. PPC and PPC64 unknown.
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|
736 } |
|
0ccfae271c45
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|
737 } |
|
0ccfae271c45
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|
738 |
|
81
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|
739 llvm::Function* func = DtoDeclareFunction(this); |
| 9 | 740 |
|
55
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|
741 if (declareOnly) |
|
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|
742 return; |
|
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|
743 |
|
31
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|
744 if (!gIR->structs.empty() && gIR->topstruct().queueFuncs) { |
|
11
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|
745 if (!llvmQueued) { |
|
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|
746 Logger::println("queueing %s", toChars()); |
|
31
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|
747 gIR->topstruct().funcs.push_back(this); |
|
11
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[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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|
748 llvmQueued = true; |
|
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[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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|
749 } |
| 10 | 750 return; // we wait with the definition as they might invoke a virtual method and the vtable is not yet complete |
| 1 | 751 } |
| 752 | |
|
11
d3ee9efe20e2
[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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|
753 assert(f->llvmType); |
|
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[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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|
754 const llvm::FunctionType* functype = llvm::cast<llvm::FunctionType>(llvmValue->getType()->getContainedType(0)); |
| 1 | 755 |
| 756 // only members of the current module maybe be defined | |
|
17
6c6cd097bcdf
[svn r21] * Fixed local instances of imported templates
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diff
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|
757 if (getModule() == gIR->dmodule || parent->isTemplateInstance()) |
| 1 | 758 { |
|
11
d3ee9efe20e2
[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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|
759 llvmDModule = gIR->dmodule; |
|
d3ee9efe20e2
[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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diff
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|
760 |
| 1 | 761 // handle static constructor / destructor |
| 762 if (isStaticCtorDeclaration() || isStaticDtorDeclaration()) { | |
| 763 const llvm::ArrayType* sctor_type = llvm::ArrayType::get(llvm::PointerType::get(functype),1); | |
| 764 //Logger::cout() << "static ctor type: " << *sctor_type << '\n'; | |
|
11
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[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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|
765 |
| 1 | 766 llvm::Constant* sctor_func = llvm::cast<llvm::Constant>(llvmValue); |
| 767 //Logger::cout() << "static ctor func: " << *sctor_func << '\n'; | |
|
11
d3ee9efe20e2
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|
768 |
| 74 | 769 llvm::Constant* sctor_init = llvm::ConstantArray::get(sctor_type,&sctor_func,1); |
|
11
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[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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|
770 |
| 1 | 771 //Logger::cout() << "static ctor init: " << *sctor_init << '\n'; |
|
11
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|
772 |
| 1 | 773 // output the llvm.global_ctors array |
| 774 const char* varname = isStaticCtorDeclaration() ? "_d_module_ctor_array" : "_d_module_dtor_array"; | |
| 775 llvm::GlobalVariable* sctor_arr = new llvm::GlobalVariable(sctor_type, false, llvm::GlobalValue::AppendingLinkage, sctor_init, varname, gIR->module); | |
| 776 } | |
| 777 | |
| 778 // function definition | |
| 74 | 779 if (fbody != 0) |
| 1 | 780 { |
| 40 | 781 gIR->functions.push_back(IRFunction(this)); |
| 782 gIR->func().func = func; | |
|
15
37a4fdab33fc
[svn r19] * Added support for reassigning 'this' inside class constructors.
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diff
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|
783 |
|
11
d3ee9efe20e2
[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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parents:
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diff
changeset
|
784 // first make absolutely sure the type is up to date |
|
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[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
lindquist
parents:
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|
785 f->llvmType = llvmValue->getType()->getContainedType(0); |
|
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[svn r15] * Fixed a bunch problems with virtual calls. Seems I did some rather poor testing.
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|
786 |
| 52 | 787 //Logger::cout() << "func type: " << *f->llvmType << '\n'; |
|
31
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|
788 |
|
15
37a4fdab33fc
[svn r19] * Added support for reassigning 'this' inside class constructors.
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|
789 // this handling |
|
37a4fdab33fc
[svn r19] * Added support for reassigning 'this' inside class constructors.
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|
790 if (f->llvmUsesThis) { |
|
50
6fcc08a4d406
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|
791 Logger::println("uses this"); |
|
15
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[svn r19] * Added support for reassigning 'this' inside class constructors.
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|
792 if (f->llvmRetInPtr) |
|
37a4fdab33fc
[svn r19] * Added support for reassigning 'this' inside class constructors.
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|
793 llvmThisVar = ++func->arg_begin(); |
|
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[svn r19] * Added support for reassigning 'this' inside class constructors.
lindquist
parents:
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diff
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|
794 else |
|
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lindquist
parents:
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|
795 llvmThisVar = func->arg_begin(); |
|
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[svn r19] * Added support for reassigning 'this' inside class constructors.
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|
796 assert(llvmThisVar != 0); |
|
37a4fdab33fc
[svn r19] * Added support for reassigning 'this' inside class constructors.
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|
797 } |
|
37a4fdab33fc
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|
798 |
| 9 | 799 if (isMain()) |
| 800 gIR->emitMain = true; | |
| 801 | |
| 40 | 802 llvm::BasicBlock* beginbb = new llvm::BasicBlock("entry",func); |
| 803 llvm::BasicBlock* endbb = new llvm::BasicBlock("endentry",func); | |
| 1 | 804 |
| 805 //assert(gIR->scopes.empty()); | |
| 40 | 806 gIR->scopes.push_back(IRScope(beginbb, endbb)); |
|
11
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parents:
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diff
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|
807 |
| 1 | 808 // create alloca point |
| 809 f->llvmAllocaPoint = new llvm::BitCastInst(llvm::ConstantInt::get(llvm::Type::Int32Ty,0,false),llvm::Type::Int32Ty,"alloca point",gIR->scopebb()); | |
| 40 | 810 gIR->func().allocapoint = f->llvmAllocaPoint; |
|
11
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diff
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|
811 |
|
50
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parents:
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diff
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|
812 llvm::Value* parentNested = NULL; |
|
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lindquist
parents:
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diff
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|
813 if (FuncDeclaration* fd = toParent()->isFuncDeclaration()) { |
|
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[svn r54] Added support for nested delegates referencing parent's stack variables.
lindquist
parents:
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|
814 parentNested = fd->llvmNested; |
|
6fcc08a4d406
[svn r54] Added support for nested delegates referencing parent's stack variables.
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diff
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|
815 } |
|
6fcc08a4d406
[svn r54] Added support for nested delegates referencing parent's stack variables.
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diff
changeset
|
816 |
|
6fcc08a4d406
[svn r54] Added support for nested delegates referencing parent's stack variables.
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diff
changeset
|
817 // construct nested variables struct |
|
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[svn r54] Added support for nested delegates referencing parent's stack variables.
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|
818 if (!llvmNestedVars.empty() || parentNested) { |
|
6fcc08a4d406
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diff
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|
819 std::vector<const llvm::Type*> nestTypes; |
|
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lindquist
parents:
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diff
changeset
|
820 int j = 0; |
|
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diff
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|
821 if (parentNested) { |
|
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40
diff
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|
822 nestTypes.push_back(parentNested->getType()); |
|
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|
823 j++; |
|
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[svn r54] Added support for nested delegates referencing parent's stack variables.
lindquist
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|
824 } |
|
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[svn r54] Added support for nested delegates referencing parent's stack variables.
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diff
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|
825 for (std::set<VarDeclaration*>::iterator i=llvmNestedVars.begin(); i!=llvmNestedVars.end(); ++i) { |
|
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lindquist
parents:
40
diff
changeset
|
826 VarDeclaration* vd = *i; |
|
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lindquist
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diff
changeset
|
827 vd->llvmNestedIndex = j++; |
|
67
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lindquist
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|
828 if (vd->isParameter()) { |
|
f918f3e2e99e
[svn r71] Fixed accessing parent function arguments from inside nested delegates.
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|
829 assert(vd->llvmValue); |
|
f918f3e2e99e
[svn r71] Fixed accessing parent function arguments from inside nested delegates.
lindquist
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|
830 nestTypes.push_back(vd->llvmValue->getType()); |
|
f918f3e2e99e
[svn r71] Fixed accessing parent function arguments from inside nested delegates.
lindquist
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diff
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|
831 } |
|
f918f3e2e99e
[svn r71] Fixed accessing parent function arguments from inside nested delegates.
lindquist
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diff
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|
832 else { |
|
81
3587401b6eeb
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|
833 nestTypes.push_back(DtoType(vd->type)); |
|
67
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lindquist
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|
834 } |
|
50
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|
835 } |
|
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|
836 const llvm::StructType* nestSType = llvm::StructType::get(nestTypes); |
|
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changeset
|
837 Logger::cout() << "nested var struct has type:" << '\n' << *nestSType; |
|
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|
838 llvmNested = new llvm::AllocaInst(nestSType,"nestedvars",f->llvmAllocaPoint); |
|
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changeset
|
839 if (parentNested) { |
|
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diff
changeset
|
840 assert(llvmThisVar); |
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841 llvm::Value* ptr = gIR->ir->CreateBitCast(llvmThisVar, parentNested->getType(), "tmp"); |
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842 gIR->ir->CreateStore(ptr, DtoGEPi(llvmNested, 0,0, "tmp")); |
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843 } |
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844 for (std::set<VarDeclaration*>::iterator i=llvmNestedVars.begin(); i!=llvmNestedVars.end(); ++i) { |
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845 VarDeclaration* vd = *i; |
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846 if (vd->isParameter()) { |
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847 gIR->ir->CreateStore(vd->llvmValue, DtoGEPi(llvmNested, 0, vd->llvmNestedIndex, "tmp")); |
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848 vd->llvmValue = llvmNested; |
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849 } |
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850 } |
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851 } |
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852 |
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853 // copy _argptr to a memory location |
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854 if (f->linkage == LINKd && f->varargs == 1) |
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855 { |
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856 llvm::Value* argptrmem = new llvm::AllocaInst(llvmArgPtr->getType(), "_argptrmem", gIR->topallocapoint()); |
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857 new llvm::StoreInst(llvmArgPtr, argptrmem, gIR->scopebb()); |
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858 llvmArgPtr = argptrmem; |
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859 } |
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860 |
| 1 | 861 // output function body |
| 862 fbody->toIR(gIR); | |
| 863 | |
| 864 // llvm requires all basic blocks to end with a TerminatorInst but DMD does not put a return statement | |
| 865 // in automatically, so we do it here. | |
| 40 | 866 if (!isMain()) { |
| 52 | 867 if (!gIR->scopereturned()) { |
| 40 | 868 // pass the previous block into this block |
| 869 //new llvm::BranchInst(irs.end, irs.begin); | |
| 870 if (func->getReturnType() == llvm::Type::VoidTy) { | |
| 871 new llvm::ReturnInst(gIR->scopebb()); | |
| 872 } | |
| 52 | 873 else { |
| 874 new llvm::ReturnInst(llvm::UndefValue::get(func->getReturnType()), gIR->scopebb()); | |
| 875 } | |
| 40 | 876 } |
| 1 | 877 } |
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878 |
| 1 | 879 // erase alloca point |
| 880 f->llvmAllocaPoint->eraseFromParent(); | |
| 881 f->llvmAllocaPoint = 0; | |
| 40 | 882 gIR->func().allocapoint = 0; |
| 1 | 883 |
| 884 gIR->scopes.pop_back(); | |
| 885 | |
| 886 // get rid of the endentry block, it's never used | |
| 9 | 887 assert(!func->getBasicBlockList().empty()); |
| 1 | 888 func->getBasicBlockList().pop_back(); |
| 889 | |
| 890 // if the last block is empty now, it must be unreachable or it's a bug somewhere else | |
| 9 | 891 // would be nice to figure out how to assert that this is correct |
| 1 | 892 llvm::BasicBlock* lastbb = &func->getBasicBlockList().back(); |
| 893 if (lastbb->empty()) { | |
| 52 | 894 if (lastbb->getNumUses() == 0) |
| 895 lastbb->eraseFromParent(); | |
| 896 else { | |
| 897 new llvm::UnreachableInst(lastbb); | |
| 898 /*if (func->getReturnType() == llvm::Type::VoidTy) { | |
| 899 new llvm::ReturnInst(lastbb); | |
| 900 } | |
| 901 else { | |
| 902 new llvm::ReturnInst(llvm::UndefValue::get(func->getReturnType()), lastbb); | |
| 903 }*/ | |
| 904 } | |
| 1 | 905 } |
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906 |
| 40 | 907 gIR->functions.pop_back(); |
| 1 | 908 } |
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909 |
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910 // template instances should have weak linkage |
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911 if (parent->isTemplateInstance()) { |
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912 func->setLinkage(llvm::GlobalValue::WeakLinkage); |
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913 } |
| 1 | 914 } |
| 915 } |