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view gen/rttibuilder.cpp @ 1650:40bd4a0d4870
Update to work with LLVM 2.7.
Removed use of dyn_cast, llvm no compiles
without exceptions and rtti by
default. We do need exceptions for the libconfig stuff, but rtti isn't
necessary (anymore).
Debug info needs to be rewritten, as in LLVM 2.7 the format has
completely changed. To have something to look at while rewriting, the
old code has been wrapped inside #ifndef DISABLE_DEBUG_INFO , this means
that you have to define this to compile at the moment.
Updated tango 0.99.9 patch to include updated EH runtime code, which is
needed for LLVM 2.7 as well.
author | Tomas Lindquist Olsen |
---|---|
date | Wed, 19 May 2010 12:42:32 +0200 |
parents | 755abafbf25d |
children |
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#include "gen/llvm.h" #include "aggregate.h" #include "mtype.h" #include "gen/arrays.h" #include "gen/irstate.h" #include "gen/linkage.h" #include "gen/llvmhelpers.h" #include "gen/rttibuilder.h" #include "gen/tollvm.h" #include "ir/irstruct.h" RTTIBuilder::RTTIBuilder(ClassDeclaration* base_class) { // make sure the base typeinfo class has been processed base_class->codegen(Type::sir); base = base_class; basetype = (TypeClass*)base->type; baseir = base->ir.irStruct; assert(baseir && "no IrStruct for TypeInfo base class"); // just start with adding the vtbl inits.push_back(baseir->getVtblSymbol()); // and monitor push_null_vp(); } void RTTIBuilder::push(llvm::Constant* C) { inits.push_back(C); } void RTTIBuilder::push_null(Type* T) { inits.push_back(getNullValue(DtoType(T))); } void RTTIBuilder::push_null_vp() { inits.push_back(getNullValue(getVoidPtrType())); } void RTTIBuilder::push_typeinfo(Type* t) { inits.push_back(DtoTypeInfoOf(t, true)); } void RTTIBuilder::push_classinfo(ClassDeclaration* cd) { inits.push_back(cd->ir.irStruct->getClassInfoSymbol()); } void RTTIBuilder::push_string(const char* str) { inits.push_back(DtoConstString(str)); } void RTTIBuilder::push_null_void_array() { const llvm::Type* T = DtoType(Type::tvoid->arrayOf()); inits.push_back(getNullValue(T)); } void RTTIBuilder::push_void_array(uint64_t dim, llvm::Constant* ptr) { inits.push_back(DtoConstSlice( DtoConstSize_t(dim), DtoBitCast(ptr, getVoidPtrType()) )); } void RTTIBuilder::push_void_array(llvm::Constant* CI, Type* valtype, Dsymbol* mangle_sym) { std::string initname(mangle_sym->mangle()); initname.append(".rtti.voidarr.data"); LLGlobalVariable* G = new llvm::GlobalVariable( *gIR->module, CI->getType(), true, TYPEINFO_LINKAGE_TYPE, CI, initname); G->setAlignment(valtype->alignsize()); push_void_array(getTypePaddedSize(CI->getType()), G); } void RTTIBuilder::push_array(llvm::Constant * CI, uint64_t dim, Type* valtype, Dsymbol * mangle_sym) { std::string tmpStr(valtype->arrayOf()->toChars()); tmpStr.erase( remove( tmpStr.begin(), tmpStr.end(), '[' ), tmpStr.end() ); tmpStr.erase( remove( tmpStr.begin(), tmpStr.end(), ']' ), tmpStr.end() ); tmpStr.append("arr"); std::string initname(mangle_sym?mangle_sym->mangle():".ldc"); initname.append(".rtti."); initname.append(tmpStr); initname.append(".data"); LLGlobalVariable* G = new llvm::GlobalVariable( *gIR->module, CI->getType(), true, TYPEINFO_LINKAGE_TYPE, CI, initname); G->setAlignment(valtype->alignsize()); push_array(dim, DtoBitCast(G, DtoType(valtype->pointerTo()))); } void RTTIBuilder::push_array(uint64_t dim, llvm::Constant * ptr) { inits.push_back(DtoConstSlice(DtoConstSize_t(dim), ptr)); } void RTTIBuilder::push_uint(unsigned u) { inits.push_back(DtoConstUint(u)); } void RTTIBuilder::push_size(uint64_t s) { inits.push_back(DtoConstSize_t(s)); } void RTTIBuilder::push_funcptr(FuncDeclaration* fd, Type* castto) { if (fd) { fd->codegen(Type::sir); LLConstant* F = fd->ir.irFunc->func; if (castto) F = DtoBitCast(F, DtoType(castto)); inits.push_back(F); } else if (castto) { push_null(castto); } else { push_null_vp(); } } void RTTIBuilder::finalize(IrGlobal* tid) { // create the inititalizer LLConstant* tiInit = LLConstantStruct::get(gIR->context(), &inits[0], inits.size(), false); // refine global type llvm::cast<llvm::OpaqueType>(tid->type.get())->refineAbstractTypeTo(tiInit->getType()); // set the initializer isaGlobalVar(tid->value)->setInitializer(tiInit); } LLConstant* RTTIBuilder::get_constant() { // just return the inititalizer return LLConstantStruct::get(gIR->context(), &inits[0], inits.size(), false); }