Mercurial > projects > ldc
annotate gen/toobj.c @ 72:d7e764e62462 trunk
[svn r76] Fixed: TypeInfo for structs.
Fixed: PostExp was unable to allocate storage for parameters.
Fixed: Many types of functions and delegates were broken.
Misc cleanups.
| author | lindquist |
|---|---|
| date | Mon, 29 Oct 2007 03:28:12 +0100 |
| parents | 2b5a2eaa88be |
| children | b706170e24a9 |
| 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 | |
| 68 gTargetData = new llvm::TargetData(ir.module); | |
| 69 | |
| 6 | 70 // process module members |
| 1 | 71 for (int k=0; k < members->dim; k++) { |
| 72 Dsymbol* dsym = (Dsymbol*)(members->data[k]); | |
| 73 assert(dsym); | |
| 74 dsym->toObjFile(); | |
| 75 } | |
| 76 | |
| 77 delete gTargetData; | |
| 78 gTargetData = 0; | |
| 79 | |
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80 // emit the llvm main function if necessary |
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81 if (ir.emitMain) { |
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82 LLVM_DtoMain(); |
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83 } |
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84 |
| 6 | 85 // verify the llvm |
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86 if (!global.params.novalidate) { |
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87 std::string verifyErr; |
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88 Logger::println("Verifying module..."); |
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89 if (llvm::verifyModule(*ir.module,llvm::ReturnStatusAction,&verifyErr)) |
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90 { |
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91 error("%s", verifyErr.c_str()); |
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92 fatal(); |
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93 } |
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94 else { |
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95 Logger::println("Verification passed!"); |
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96 } |
| 1 | 97 } |
| 98 | |
| 99 // run passes | |
| 100 // TODO | |
| 101 | |
| 52 | 102 // write bytecode |
| 103 { | |
| 104 Logger::println("Writing LLVM bitcode\n"); | |
| 105 std::ofstream bos(bcfile->name->toChars(), std::ios::binary); | |
| 106 llvm::WriteBitcodeToFile(ir.module, bos); | |
| 107 } | |
| 1 | 108 |
| 52 | 109 // disassemble ? |
| 110 if (global.params.disassemble) { | |
| 111 Logger::println("Writing LLVM asm to: %s\n", llfile->name->toChars()); | |
| 112 std::ofstream aos(llfile->name->toChars()); | |
| 113 ir.module->print(aos); | |
| 114 } | |
| 1 | 115 |
| 116 delete ir.module; | |
| 117 gIR = NULL; | |
| 118 } | |
| 119 | |
| 120 /* ================================================================== */ | |
| 121 | |
| 122 // Put out instance of ModuleInfo for this Module | |
| 123 | |
| 124 void Module::genmoduleinfo() | |
| 125 { | |
| 126 } | |
| 127 | |
| 128 /* ================================================================== */ | |
| 129 | |
| 130 void Dsymbol::toObjFile() | |
| 131 { | |
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132 Logger::println("Ignoring Dsymbol::toObjFile for %s", toChars()); |
| 1 | 133 } |
| 134 | |
| 135 /* ================================================================== */ | |
| 136 | |
| 137 void Declaration::toObjFile() | |
| 138 { | |
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139 Logger::println("Ignoring Declaration::toObjFile for %s", toChars()); |
| 1 | 140 } |
| 141 | |
| 142 /* ================================================================== */ | |
| 143 | |
| 6 | 144 /// Returns the LLVM style index from a DMD style offset |
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145 void AggregateDeclaration::offsetToIndex(Type* t, unsigned os, std::vector<unsigned>& result) |
| 1 | 146 { |
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147 Logger::println("checking for offset %u type %s:", os, t->toChars()); |
| 23 | 148 LOG_SCOPE; |
| 1 | 149 for (unsigned i=0; i<fields.dim; ++i) { |
| 150 VarDeclaration* vd = (VarDeclaration*)fields.data[i]; | |
| 40 | 151 Type* vdtype = LLVM_DtoDType(vd->type); |
| 152 Logger::println("found %u type %s", vd->offset, vdtype->toChars()); | |
| 153 if (os == vd->offset && vdtype == t) { | |
| 23 | 154 result.push_back(i); |
| 155 return; | |
| 156 } | |
| 40 | 157 else if (vdtype->ty == Tstruct && (vd->offset + vdtype->size()) > os) { |
| 158 TypeStruct* ts = (TypeStruct*)vdtype; | |
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159 StructDeclaration* sd = ts->sym; |
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160 result.push_back(i); |
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161 sd->offsetToIndex(t, os - vd->offset, result); |
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162 return; |
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163 } |
| 1 | 164 } |
| 165 assert(0 && "Offset not found in any aggregate field"); | |
| 166 } | |
| 167 | |
| 168 /* ================================================================== */ | |
| 169 | |
| 170 static unsigned LLVM_ClassOffsetToIndex(ClassDeclaration* cd, unsigned os, unsigned& idx) | |
| 171 { | |
| 172 // start at the bottom of the inheritance chain | |
| 173 if (cd->baseClass != 0) { | |
| 174 unsigned o = LLVM_ClassOffsetToIndex(cd->baseClass, os, idx); | |
| 175 if (o != (unsigned)-1) | |
| 176 return o; | |
| 177 } | |
| 178 | |
| 179 // check this class | |
| 180 unsigned i; | |
| 181 for (i=0; i<cd->fields.dim; ++i) { | |
| 182 VarDeclaration* vd = (VarDeclaration*)cd->fields.data[i]; | |
| 183 if (os == vd->offset) | |
| 184 return i+idx; | |
| 185 } | |
| 186 idx += i; | |
| 187 | |
| 188 return (unsigned)-1; | |
| 189 } | |
| 190 | |
| 6 | 191 /// Returns the LLVM style index from a DMD style offset |
| 192 /// Handles class inheritance | |
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193 void ClassDeclaration::offsetToIndex(Type* t, unsigned os, std::vector<unsigned>& result) |
| 1 | 194 { |
| 195 unsigned idx = 0; | |
| 196 unsigned r = LLVM_ClassOffsetToIndex(this, os, idx); | |
| 197 assert(r != (unsigned)-1 && "Offset not found in any aggregate field"); | |
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198 result.push_back(r+1); // vtable is 0 |
| 1 | 199 } |
| 200 | |
| 201 /* ================================================================== */ | |
| 202 | |
| 203 void InterfaceDeclaration::toObjFile() | |
| 204 { | |
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205 Logger::println("Ignoring InterfaceDeclaration::toObjFile for %s", toChars()); |
| 1 | 206 } |
| 207 | |
| 208 /* ================================================================== */ | |
| 209 | |
| 210 void StructDeclaration::toObjFile() | |
| 211 { | |
| 40 | 212 TypeStruct* ts = (TypeStruct*)LLVM_DtoDType(type); |
| 1 | 213 if (llvmType != 0) |
| 214 return; | |
| 215 | |
| 216 static int sdi = 0; | |
| 217 Logger::print("StructDeclaration::toObjFile(%d): %s\n", sdi++, toChars()); | |
| 218 LOG_SCOPE; | |
| 219 | |
| 220 gIR->structs.push_back(IRStruct(ts)); | |
| 221 | |
| 222 for (int k=0; k < members->dim; k++) { | |
| 223 Dsymbol* dsym = (Dsymbol*)(members->data[k]); | |
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224 dsym->toObjFile(); |
| 1 | 225 } |
| 226 | |
| 23 | 227 if (gIR->topstruct().fields.empty()) |
| 228 { | |
| 229 gIR->topstruct().fields.push_back(llvm::Type::Int8Ty); | |
| 230 gIR->topstruct().inits.push_back(llvm::ConstantInt::get(llvm::Type::Int8Ty, 0, false)); | |
| 231 } | |
| 232 | |
| 1 | 233 llvm::StructType* structtype = llvm::StructType::get(gIR->topstruct().fields); |
| 234 | |
| 235 // refine abstract types for stuff like: struct S{S* next;} | |
| 236 if (gIR->topstruct().recty != 0) | |
| 237 { | |
| 238 llvm::PATypeHolder& pa = gIR->topstruct().recty; | |
| 239 llvm::cast<llvm::OpaqueType>(pa.get())->refineAbstractTypeTo(structtype); | |
| 240 structtype = llvm::cast<llvm::StructType>(pa.get()); | |
| 241 } | |
| 242 | |
| 243 ts->llvmType = structtype; | |
| 244 llvmType = structtype; | |
| 245 | |
| 246 if (parent->isModule()) { | |
| 247 gIR->module->addTypeName(mangle(),ts->llvmType); | |
| 248 } | |
| 249 | |
| 250 // generate static data | |
| 251 llvm::GlobalValue::LinkageTypes _linkage = llvm::GlobalValue::ExternalLinkage; | |
| 252 llvm::Constant* _init = 0; | |
| 253 | |
| 254 // always generate the constant initalizer | |
| 255 if (!zeroInit) { | |
| 256 Logger::println("Not zero initialized"); | |
| 257 //assert(tk == gIR->topstruct().size()); | |
| 258 #ifndef LLVMD_NO_LOGGER | |
| 259 Logger::cout() << *structtype << '\n'; | |
| 260 for (size_t k=0; k<gIR->topstruct().inits.size(); ++k) { | |
| 261 Logger::cout() << "Type:" << '\n'; | |
| 262 Logger::cout() << *gIR->topstruct().inits[k]->getType() << '\n'; | |
| 263 Logger::cout() << "Value:" << '\n'; | |
| 264 Logger::cout() << *gIR->topstruct().inits[k] << '\n'; | |
| 265 } | |
| 266 Logger::cout() << "Initializer printed" << '\n'; | |
| 267 #endif | |
| 268 llvmInitZ = llvm::ConstantStruct::get(structtype,gIR->topstruct().inits); | |
| 269 } | |
| 270 else { | |
| 271 Logger::println("Zero initialized"); | |
| 272 llvmInitZ = llvm::ConstantAggregateZero::get(structtype); | |
| 273 } | |
| 274 | |
| 275 // only provide the constant initializer for the defining module | |
| 276 if (getModule() == gIR->dmodule) | |
| 277 { | |
| 278 _init = llvmInitZ; | |
| 279 } | |
| 280 | |
| 281 std::string initname(mangle()); | |
| 282 initname.append("__initZ"); | |
| 283 llvm::GlobalVariable* initvar = new llvm::GlobalVariable(ts->llvmType, true, _linkage, _init, initname, gIR->module); | |
| 284 ts->llvmInit = initvar; | |
| 285 | |
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286 // generate member function definitions |
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287 gIR->topstruct().queueFuncs = false; |
| 40 | 288 IRStruct::FuncDeclVec& mfs = gIR->topstruct().funcs; |
| 1 | 289 size_t n = mfs.size(); |
| 290 for (size_t i=0; i<n; ++i) { | |
| 291 mfs[i]->toObjFile(); | |
| 292 } | |
| 293 | |
| 294 llvmDModule = gIR->dmodule; | |
| 295 | |
| 296 gIR->structs.pop_back(); | |
| 297 | |
| 298 // generate typeinfo | |
| 72 | 299 if (getModule() == gIR->dmodule) |
| 300 type->getTypeInfo(NULL); | |
| 1 | 301 } |
| 302 | |
| 303 /* ================================================================== */ | |
| 304 | |
| 305 static void LLVM_AddBaseClassData(BaseClasses* bcs) | |
| 306 { | |
| 307 // add base class data members first | |
| 308 for (int j=0; j<bcs->dim; j++) | |
| 309 { | |
| 310 BaseClass* bc = (BaseClass*)(bcs->data[j]); | |
| 311 assert(bc); | |
| 40 | 312 Logger::println("Adding base class members of %s", bc->base->toChars()); |
| 313 LOG_SCOPE; | |
| 314 | |
| 1 | 315 LLVM_AddBaseClassData(&bc->base->baseclasses); |
| 316 for (int k=0; k < bc->base->members->dim; k++) { | |
| 317 Dsymbol* dsym = (Dsymbol*)(bc->base->members->data[k]); | |
| 318 if (dsym->isVarDeclaration()) | |
| 319 { | |
| 320 dsym->toObjFile(); | |
| 321 } | |
| 322 } | |
| 323 } | |
| 324 } | |
| 325 | |
| 326 void ClassDeclaration::toObjFile() | |
| 327 { | |
| 40 | 328 TypeClass* ts = (TypeClass*)LLVM_DtoDType(type); |
| 1 | 329 if (ts->llvmType != 0 || llvmInProgress) |
| 330 return; | |
| 331 | |
| 332 llvmInProgress = true; | |
| 333 | |
| 334 static int fdi = 0; | |
| 335 Logger::print("ClassDeclaration::toObjFile(%d): %s\n", fdi++, toChars()); | |
| 336 LOG_SCOPE; | |
| 337 | |
| 6 | 338 gIR->structs.push_back(IRStruct(ts)); |
| 1 | 339 gIR->classes.push_back(this); |
| 340 | |
| 341 // add vtable | |
| 9 | 342 llvm::PATypeHolder pa = llvm::OpaqueType::get(); |
| 343 const llvm::Type* vtabty = llvm::PointerType::get(pa); | |
| 1 | 344 gIR->topstruct().fields.push_back(vtabty); |
| 345 gIR->topstruct().inits.push_back(0); | |
| 346 | |
| 347 // base classes first | |
| 348 LLVM_AddBaseClassData(&baseclasses); | |
| 349 | |
| 350 // then add own members | |
| 351 for (int k=0; k < members->dim; k++) { | |
| 352 Dsymbol* dsym = (Dsymbol*)(members->data[k]); | |
| 353 dsym->toObjFile(); | |
| 354 } | |
| 355 | |
| 356 llvm::StructType* structtype = llvm::StructType::get(gIR->topstruct().fields); | |
| 6 | 357 // refine abstract types for stuff like: class C {C next;} |
| 358 if (gIR->topstruct().recty != 0) | |
| 359 { | |
| 360 llvm::PATypeHolder& pa = gIR->topstruct().recty; | |
| 361 llvm::cast<llvm::OpaqueType>(pa.get())->refineAbstractTypeTo(structtype); | |
| 362 structtype = llvm::cast<llvm::StructType>(pa.get()); | |
| 363 } | |
| 364 | |
| 1 | 365 ts->llvmType = structtype; |
| 366 llvmType = structtype; | |
| 367 | |
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368 bool needs_definition = false; |
| 1 | 369 if (parent->isModule()) { |
| 370 gIR->module->addTypeName(mangle(),ts->llvmType); | |
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371 needs_definition = (getModule() == gIR->dmodule); |
| 1 | 372 } |
| 373 else { | |
| 374 assert(0 && "class parent is not a module"); | |
| 375 } | |
| 376 | |
| 9 | 377 // generate vtable |
| 378 llvm::GlobalVariable* svtblVar = 0; | |
| 379 std::vector<llvm::Constant*> sinits; | |
| 380 std::vector<const llvm::Type*> sinits_ty; | |
| 381 sinits.reserve(vtbl.dim); | |
| 382 sinits_ty.reserve(vtbl.dim); | |
| 383 | |
| 384 for (int k=0; k < vtbl.dim; k++) | |
| 385 { | |
| 386 Dsymbol* dsym = (Dsymbol*)vtbl.data[k]; | |
| 387 assert(dsym); | |
| 388 //Logger::cout() << "vtblsym: " << dsym->toChars() << '\n'; | |
| 389 | |
| 390 if (FuncDeclaration* fd = dsym->isFuncDeclaration()) { | |
| 391 fd->toObjFile(); | |
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392 assert(fd->llvmValue); |
| 9 | 393 llvm::Constant* c = llvm::cast<llvm::Constant>(fd->llvmValue); |
| 394 sinits.push_back(c); | |
| 395 sinits_ty.push_back(c->getType()); | |
| 396 } | |
| 397 else if (ClassDeclaration* cd = dsym->isClassDeclaration()) { | |
| 398 const llvm::Type* cty = llvm::PointerType::get(llvm::Type::Int8Ty); | |
| 399 llvm::Constant* c = llvm::Constant::getNullValue(cty); | |
| 400 sinits.push_back(c); | |
| 401 sinits_ty.push_back(cty); | |
| 402 } | |
| 403 else | |
| 404 assert(0); | |
| 405 } | |
| 406 | |
| 407 const llvm::StructType* svtbl_ty = 0; | |
| 408 if (!sinits.empty()) | |
| 409 { | |
| 410 llvm::GlobalValue::LinkageTypes _linkage = llvm::GlobalValue::ExternalLinkage; | |
| 411 | |
| 52 | 412 std::string varname("_D"); |
| 413 varname.append(mangle()); | |
| 414 varname.append("6__vtblZ"); | |
| 415 | |
| 9 | 416 std::string styname(mangle()); |
| 417 styname.append("__vtblTy"); | |
| 418 | |
| 419 svtbl_ty = llvm::StructType::get(sinits_ty); | |
| 420 gIR->module->addTypeName(styname, svtbl_ty); | |
| 421 svtblVar = new llvm::GlobalVariable(svtbl_ty, true, _linkage, 0, varname, gIR->module); | |
| 422 | |
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423 llvmConstVtbl = llvm::cast<llvm::ConstantStruct>(llvm::ConstantStruct::get(svtbl_ty, sinits)); |
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424 if (needs_definition) |
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425 svtblVar->setInitializer(llvmConstVtbl); |
| 9 | 426 llvmVtbl = svtblVar; |
| 427 } | |
| 428 | |
| 429 //////////////////////////////////////////////////////////////////////////////// | |
| 430 | |
| 431 // refine for final vtable type | |
| 432 llvm::cast<llvm::OpaqueType>(pa.get())->refineAbstractTypeTo(svtbl_ty); | |
| 433 svtbl_ty = llvm::cast<llvm::StructType>(pa.get()); | |
| 434 structtype = llvm::cast<llvm::StructType>(gIR->topstruct().recty.get()); | |
| 435 ts->llvmType = structtype; | |
| 436 llvmType = structtype; | |
| 437 | |
| 438 // generate initializer | |
| 439 llvm::GlobalValue::LinkageTypes _linkage = llvm::GlobalValue::ExternalLinkage; | |
| 440 llvm::Constant* _init = 0; | |
| 441 | |
| 442 // first field is always the vtable | |
| 443 assert(svtblVar != 0); | |
| 444 gIR->topstruct().inits[0] = svtblVar; | |
| 445 | |
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446 llvmInitZ = _init = llvm::ConstantStruct::get(structtype,gIR->topstruct().inits); |
| 9 | 447 assert(_init); |
| 52 | 448 |
| 449 std::string initname("_D"); | |
| 450 initname.append(mangle()); | |
| 451 initname.append("6__initZ"); | |
|
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452 //Logger::cout() << *_init << '\n'; |
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453 llvm::GlobalVariable* initvar = new llvm::GlobalVariable(ts->llvmType, true, _linkage, NULL, initname, gIR->module); |
| 9 | 454 ts->llvmInit = initvar; |
| 455 | |
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456 if (needs_definition) { |
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457 initvar->setInitializer(_init); |
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458 // generate member functions |
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459 gIR->topstruct().queueFuncs = false; |
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460 IRStruct::FuncDeclVec& mfs = gIR->topstruct().funcs; |
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461 size_t n = mfs.size(); |
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462 for (size_t i=0; i<n; ++i) { |
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463 mfs[i]->toObjFile(); |
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464 } |
| 1 | 465 } |
| 466 | |
| 467 gIR->classes.pop_back(); | |
| 468 gIR->structs.pop_back(); | |
| 469 | |
| 470 llvmInProgress = false; | |
| 471 } | |
| 472 | |
| 473 /****************************************** | |
| 474 * Get offset of base class's vtbl[] initializer from start of csym. | |
| 475 * Returns ~0 if not this csym. | |
| 476 */ | |
| 477 | |
| 478 unsigned ClassDeclaration::baseVtblOffset(BaseClass *bc) | |
| 479 { | |
| 480 return ~0; | |
| 481 } | |
| 482 | |
| 483 /* ================================================================== */ | |
| 484 | |
| 485 void VarDeclaration::toObjFile() | |
| 486 { | |
| 40 | 487 Logger::print("VarDeclaration::toObjFile(): %s | %s\n", toChars(), type->toChars()); |
| 1 | 488 LOG_SCOPE; |
| 489 llvm::Module* M = gIR->module; | |
| 490 | |
| 491 // handle bind pragma | |
| 492 if (llvmInternal == LLVMbind) { | |
| 493 Logger::println("var is bound: %s", llvmInternal1); | |
| 494 llvmValue = M->getGlobalVariable(llvmInternal1); | |
| 495 assert(llvmValue); | |
| 496 return; | |
| 497 } | |
| 498 | |
| 499 // global variable or magic | |
| 40 | 500 if (isDataseg() || parent->isModule()) |
| 1 | 501 { |
| 40 | 502 if (llvmTouched) return; |
| 503 else llvmTouched = true; | |
| 504 | |
| 1 | 505 bool _isconst = isConst(); |
|
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506 |
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507 llvm::GlobalValue::LinkageTypes _linkage; |
| 52 | 508 if (parent && parent->isFuncDeclaration()) |
|
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509 _linkage = llvm::GlobalValue::InternalLinkage; |
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510 else |
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511 _linkage = LLVM_DtoLinkage(protection, storage_class); |
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512 |
| 40 | 513 Type* t = LLVM_DtoDType(type); |
| 514 | |
| 515 const llvm::Type* _type = LLVM_DtoType(t); | |
|
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516 assert(_type); |
| 1 | 517 |
| 518 llvm::Constant* _init = 0; | |
| 519 bool _signed = !type->isunsigned(); | |
| 520 | |
|
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521 Logger::println("Creating global variable"); |
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522 std::string _name(mangle()); |
| 52 | 523 |
|
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524 llvm::GlobalVariable* gvar = new llvm::GlobalVariable(_type,_isconst,_linkage,0,_name,M); |
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525 llvmValue = gvar; |
| 40 | 526 |
| 52 | 527 // if extern don't emit initializer |
| 528 if (!(storage_class & STCextern)) | |
| 529 { | |
| 530 _init = LLVM_DtoConstInitializer(t, init); | |
|
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531 |
| 52 | 532 //Logger::cout() << "initializer: " << *_init << '\n'; |
| 533 if (_type != _init->getType()) { | |
| 534 Logger::cout() << "got type '" << *_init->getType() << "' expected '" << *_type << "'\n"; | |
| 535 // zero initalizer | |
| 536 if (_init->isNullValue()) | |
| 537 _init = llvm::Constant::getNullValue(_type); | |
| 538 // pointer to global constant (struct.init) | |
| 539 else if (llvm::isa<llvm::GlobalVariable>(_init)) | |
| 540 { | |
| 541 assert(_init->getType()->getContainedType(0) == _type); | |
| 542 llvm::GlobalVariable* gv = llvm::cast<llvm::GlobalVariable>(_init); | |
| 543 assert(t->ty == Tstruct); | |
| 544 TypeStruct* ts = (TypeStruct*)t; | |
| 545 assert(ts->sym->llvmInitZ); | |
| 546 _init = ts->sym->llvmInitZ; | |
| 547 } | |
| 548 // array single value init | |
| 549 else if (llvm::isa<llvm::ArrayType>(_type)) | |
| 550 { | |
|
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551 _init = LLVM_DtoConstStaticArray(_type, _init); |
| 52 | 552 } |
| 553 else { | |
| 554 Logger::cout() << "Unexpected initializer type: " << *_type << '\n'; | |
| 555 //assert(0); | |
| 556 } | |
| 1 | 557 } |
| 52 | 558 |
|
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559 Logger::cout() << "final init = " << *_init << '\n'; |
| 52 | 560 gvar->setInitializer(_init); |
| 1 | 561 } |
| 562 | |
| 40 | 563 llvmDModule = gIR->dmodule; |
| 1 | 564 |
| 565 //if (storage_class & STCprivate) | |
| 566 // gvar->setVisibility(llvm::GlobalValue::ProtectedVisibility); | |
| 567 } | |
| 568 | |
| 569 // inside aggregate declaration. declare a field. | |
| 570 else | |
| 571 { | |
| 572 Logger::println("Aggregate var declaration: '%s' offset=%d", toChars(), offset); | |
| 573 | |
| 40 | 574 Type* t = LLVM_DtoDType(type); |
| 575 const llvm::Type* _type = LLVM_DtoType(t); | |
| 1 | 576 gIR->topstruct().fields.push_back(_type); |
| 577 | |
| 40 | 578 llvm::Constant*_init = LLVM_DtoConstInitializer(t, init); |
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579 assert(_init); |
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580 Logger::cout() << "field init is: " << *_init << " type should be " << *_type << '\n'; |
| 40 | 581 if (_type != _init->getType()) |
| 1 | 582 { |
| 40 | 583 if (t->ty == Tsarray) |
| 1 | 584 { |
| 585 const llvm::ArrayType* arrty = llvm::cast<llvm::ArrayType>(_type); | |
| 586 uint64_t n = arrty->getNumElements(); | |
| 587 std::vector<llvm::Constant*> vals(n,_init); | |
| 588 _init = llvm::ConstantArray::get(arrty, vals); | |
| 589 } | |
| 40 | 590 else if (t->ty == Tarray) |
|
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591 { |
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592 assert(llvm::isa<llvm::StructType>(_type)); |
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593 _init = llvm::ConstantAggregateZero::get(_type); |
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594 } |
| 40 | 595 else if (t->ty == Tstruct) |
|
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596 { |
| 6 | 597 const llvm::StructType* structty = llvm::cast<llvm::StructType>(_type); |
| 40 | 598 TypeStruct* ts = (TypeStruct*)t; |
| 9 | 599 assert(ts); |
| 600 assert(ts->sym); | |
| 6 | 601 assert(ts->sym->llvmInitZ); |
| 602 _init = ts->sym->llvmInitZ; | |
| 603 } | |
| 40 | 604 else if (t->ty == Tclass) |
|
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605 { |
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606 _init = llvm::Constant::getNullValue(_type); |
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607 } |
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608 else { |
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609 Logger::println("failed for type %s", type->toChars()); |
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610 assert(0); |
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611 } |
| 1 | 612 } |
| 613 gIR->topstruct().inits.push_back(_init); | |
| 614 } | |
| 615 | |
| 616 Logger::println("VarDeclaration::toObjFile is done"); | |
| 617 } | |
| 618 | |
| 619 /* ================================================================== */ | |
| 620 | |
| 621 void TypedefDeclaration::toObjFile() | |
| 622 { | |
| 623 static int tdi = 0; | |
| 624 Logger::print("TypedefDeclaration::toObjFile(%d): %s\n", tdi++, toChars()); | |
| 625 LOG_SCOPE; | |
| 626 | |
| 52 | 627 // generate typeinfo |
| 72 | 628 type->getTypeInfo(NULL); |
| 1 | 629 } |
| 630 | |
| 631 /* ================================================================== */ | |
| 632 | |
| 633 void EnumDeclaration::toObjFile() | |
| 634 { | |
|
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635 Logger::println("Ignoring EnumDeclaration::toObjFile for %s", toChars()); |
| 1 | 636 } |
| 637 | |
| 638 /* ================================================================== */ | |
| 639 | |
| 640 void FuncDeclaration::toObjFile() | |
| 641 { | |
| 18 | 642 if (llvmDModule) { |
| 9 | 643 assert(llvmValue != 0); |
| 1 | 644 return; |
| 645 } | |
| 646 | |
|
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647 if (isUnitTestDeclaration()) { |
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648 Logger::println("*** ATTENTION: ignoring unittest declaration: %s", toChars()); |
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649 return; |
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650 } |
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651 |
|
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652 Type* t = LLVM_DtoDType(type); |
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653 TypeFunction* f = (TypeFunction*)t; |
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654 |
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655 bool declareOnly = false; |
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656 if (TemplateInstance* tinst = parent->isTemplateInstance()) { |
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657 TemplateDeclaration* tempdecl = tinst->tempdecl; |
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658 if (tempdecl->llvmInternal == LLVMva_start) |
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659 { |
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660 Logger::println("magic va_start found"); |
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661 llvmInternal = LLVMva_start; |
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662 declareOnly = true; |
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663 } |
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664 else if (tempdecl->llvmInternal == LLVMva_arg) |
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665 { |
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666 Logger::println("magic va_arg found"); |
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667 llvmInternal = LLVMva_arg; |
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668 return; |
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669 } |
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670 } |
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671 |
| 9 | 672 llvm::Function* func = LLVM_DtoDeclareFunction(this); |
| 673 | |
|
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674 if (declareOnly) |
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675 return; |
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676 |
|
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677 if (!gIR->structs.empty() && gIR->topstruct().queueFuncs) { |
|
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678 if (!llvmQueued) { |
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679 Logger::println("queueing %s", toChars()); |
|
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680 gIR->topstruct().funcs.push_back(this); |
|
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681 llvmQueued = true; |
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682 } |
| 10 | 683 return; // we wait with the definition as they might invoke a virtual method and the vtable is not yet complete |
| 1 | 684 } |
| 685 | |
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686 assert(f->llvmType); |
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687 const llvm::FunctionType* functype = llvm::cast<llvm::FunctionType>(llvmValue->getType()->getContainedType(0)); |
| 1 | 688 |
| 689 // only members of the current module maybe be defined | |
|
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690 if (getModule() == gIR->dmodule || parent->isTemplateInstance()) |
| 1 | 691 { |
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692 llvmDModule = gIR->dmodule; |
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693 |
| 1 | 694 bool allow_fbody = true; |
| 695 // handle static constructor / destructor | |
| 696 if (isStaticCtorDeclaration() || isStaticDtorDeclaration()) { | |
| 697 const llvm::ArrayType* sctor_type = llvm::ArrayType::get(llvm::PointerType::get(functype),1); | |
| 698 //Logger::cout() << "static ctor type: " << *sctor_type << '\n'; | |
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699 |
| 1 | 700 llvm::Constant* sctor_func = llvm::cast<llvm::Constant>(llvmValue); |
| 701 //Logger::cout() << "static ctor func: " << *sctor_func << '\n'; | |
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702 |
| 1 | 703 llvm::Constant* sctor_init = 0; |
| 704 if (llvmInternal == LLVMnull) | |
| 705 { | |
| 706 llvm::Constant* sctor_init_null = llvm::Constant::getNullValue(sctor_func->getType()); | |
| 707 sctor_init = llvm::ConstantArray::get(sctor_type,&sctor_init_null,1); | |
| 708 allow_fbody = false; | |
| 709 } | |
| 710 else | |
| 711 { | |
| 712 sctor_init = llvm::ConstantArray::get(sctor_type,&sctor_func,1); | |
| 713 } | |
|
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714 |
| 1 | 715 //Logger::cout() << "static ctor init: " << *sctor_init << '\n'; |
|
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716 |
| 1 | 717 // output the llvm.global_ctors array |
| 718 const char* varname = isStaticCtorDeclaration() ? "_d_module_ctor_array" : "_d_module_dtor_array"; | |
| 719 llvm::GlobalVariable* sctor_arr = new llvm::GlobalVariable(sctor_type, false, llvm::GlobalValue::AppendingLinkage, sctor_init, varname, gIR->module); | |
| 720 } | |
| 721 | |
| 722 // function definition | |
| 723 if (allow_fbody && fbody != 0) | |
| 724 { | |
| 40 | 725 gIR->functions.push_back(IRFunction(this)); |
| 726 gIR->func().func = func; | |
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727 |
|
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728 // first make absolutely sure the type is up to date |
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729 f->llvmType = llvmValue->getType()->getContainedType(0); |
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730 |
| 52 | 731 //Logger::cout() << "func type: " << *f->llvmType << '\n'; |
|
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732 |
|
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733 // this handling |
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734 if (f->llvmUsesThis) { |
|
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735 Logger::println("uses this"); |
|
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736 if (f->llvmRetInPtr) |
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737 llvmThisVar = ++func->arg_begin(); |
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738 else |
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739 llvmThisVar = func->arg_begin(); |
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740 assert(llvmThisVar != 0); |
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741 } |
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742 |
| 9 | 743 if (isMain()) |
| 744 gIR->emitMain = true; | |
| 745 | |
| 40 | 746 llvm::BasicBlock* beginbb = new llvm::BasicBlock("entry",func); |
| 747 llvm::BasicBlock* endbb = new llvm::BasicBlock("endentry",func); | |
| 1 | 748 |
| 749 //assert(gIR->scopes.empty()); | |
| 40 | 750 gIR->scopes.push_back(IRScope(beginbb, endbb)); |
|
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751 |
| 1 | 752 // create alloca point |
| 753 f->llvmAllocaPoint = new llvm::BitCastInst(llvm::ConstantInt::get(llvm::Type::Int32Ty,0,false),llvm::Type::Int32Ty,"alloca point",gIR->scopebb()); | |
| 40 | 754 gIR->func().allocapoint = f->llvmAllocaPoint; |
|
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755 |
|
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756 llvm::Value* parentNested = NULL; |
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757 if (FuncDeclaration* fd = toParent()->isFuncDeclaration()) { |
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758 parentNested = fd->llvmNested; |
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759 } |
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760 |
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761 // construct nested variables struct |
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762 if (!llvmNestedVars.empty() || parentNested) { |
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763 std::vector<const llvm::Type*> nestTypes; |
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764 int j = 0; |
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765 if (parentNested) { |
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766 nestTypes.push_back(parentNested->getType()); |
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767 j++; |
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768 } |
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769 for (std::set<VarDeclaration*>::iterator i=llvmNestedVars.begin(); i!=llvmNestedVars.end(); ++i) { |
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770 VarDeclaration* vd = *i; |
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771 vd->llvmNestedIndex = j++; |
|
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772 if (vd->isParameter()) { |
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773 assert(vd->llvmValue); |
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774 nestTypes.push_back(vd->llvmValue->getType()); |
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775 } |
|
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776 else { |
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777 nestTypes.push_back(LLVM_DtoType(vd->type)); |
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778 } |
|
50
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779 } |
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780 const llvm::StructType* nestSType = llvm::StructType::get(nestTypes); |
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781 Logger::cout() << "nested var struct has type:" << '\n' << *nestSType; |
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782 llvmNested = new llvm::AllocaInst(nestSType,"nestedvars",f->llvmAllocaPoint); |
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783 if (parentNested) { |
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|
784 assert(llvmThisVar); |
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785 llvm::Value* ptr = gIR->ir->CreateBitCast(llvmThisVar, parentNested->getType(), "tmp"); |
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786 gIR->ir->CreateStore(ptr, LLVM_DtoGEPi(llvmNested, 0,0, "tmp")); |
|
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787 } |
|
67
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788 for (std::set<VarDeclaration*>::iterator i=llvmNestedVars.begin(); i!=llvmNestedVars.end(); ++i) { |
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789 VarDeclaration* vd = *i; |
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790 if (vd->isParameter()) { |
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791 gIR->ir->CreateStore(vd->llvmValue, LLVM_DtoGEPi(llvmNested, 0, vd->llvmNestedIndex, "tmp")); |
|
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792 vd->llvmValue = llvmNested; |
|
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793 } |
|
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794 } |
|
50
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795 } |
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796 |
|
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797 // copy _argptr to a memory location |
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798 if (f->linkage == LINKd && f->varargs == 1) |
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799 { |
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800 llvm::Value* argptrmem = new llvm::AllocaInst(llvmArgPtr->getType(), "_argptrmem", gIR->topallocapoint()); |
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801 new llvm::StoreInst(llvmArgPtr, argptrmem, gIR->scopebb()); |
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802 llvmArgPtr = argptrmem; |
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803 } |
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804 |
| 1 | 805 // output function body |
| 806 fbody->toIR(gIR); | |
| 807 | |
| 808 // llvm requires all basic blocks to end with a TerminatorInst but DMD does not put a return statement | |
| 809 // in automatically, so we do it here. | |
| 40 | 810 if (!isMain()) { |
| 52 | 811 if (!gIR->scopereturned()) { |
| 40 | 812 // pass the previous block into this block |
| 813 //new llvm::BranchInst(irs.end, irs.begin); | |
| 814 if (func->getReturnType() == llvm::Type::VoidTy) { | |
| 815 new llvm::ReturnInst(gIR->scopebb()); | |
| 816 } | |
| 52 | 817 else { |
| 818 new llvm::ReturnInst(llvm::UndefValue::get(func->getReturnType()), gIR->scopebb()); | |
| 819 } | |
| 40 | 820 } |
| 1 | 821 } |
|
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822 |
| 1 | 823 // erase alloca point |
| 824 f->llvmAllocaPoint->eraseFromParent(); | |
| 825 f->llvmAllocaPoint = 0; | |
| 40 | 826 gIR->func().allocapoint = 0; |
| 1 | 827 |
| 828 gIR->scopes.pop_back(); | |
| 829 | |
| 830 // get rid of the endentry block, it's never used | |
| 9 | 831 assert(!func->getBasicBlockList().empty()); |
| 1 | 832 func->getBasicBlockList().pop_back(); |
| 833 | |
| 834 // if the last block is empty now, it must be unreachable or it's a bug somewhere else | |
| 9 | 835 // would be nice to figure out how to assert that this is correct |
| 1 | 836 llvm::BasicBlock* lastbb = &func->getBasicBlockList().back(); |
| 837 if (lastbb->empty()) { | |
| 52 | 838 if (lastbb->getNumUses() == 0) |
| 839 lastbb->eraseFromParent(); | |
| 840 else { | |
| 841 new llvm::UnreachableInst(lastbb); | |
| 842 /*if (func->getReturnType() == llvm::Type::VoidTy) { | |
| 843 new llvm::ReturnInst(lastbb); | |
| 844 } | |
| 845 else { | |
| 846 new llvm::ReturnInst(llvm::UndefValue::get(func->getReturnType()), lastbb); | |
| 847 }*/ | |
| 848 } | |
| 1 | 849 } |
|
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850 |
| 40 | 851 gIR->functions.pop_back(); |
| 1 | 852 } |
|
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853 |
|
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854 // template instances should have weak linkage |
|
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855 if (parent->isTemplateInstance()) { |
|
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856 func->setLinkage(llvm::GlobalValue::WeakLinkage); |
|
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857 } |
| 1 | 858 } |
| 859 } |