search for: structtype

I'm building a StructType without a body using StructType *StructType::create(LLVMContext &Context, StringRef Name); and then later adding a body to with setBody(). It starts of isOpaque() == true, and isSized() == false, and after I add the body, isOpaque() == false, but isSized() is still false. If I create a Stru...

Several people on this list have reported issues with the linker regarding a named StructType instance with the same name in two different modules being resolved into two StructTypes with different names due to StructType:: setName(…) collision behavior. Looking at BitcodeReader::ParseTypeTableBody(…), I don't see use of LLVMContextImpl::NamedStructTypes or of Module::getTypeByName(…)....

Hi, how can i correctly calculate the size of a member of a struct (including alignment etc)? This doesn't work : const StructType *STy = cast<StructType>(Ty); for (StructType::element_iterator I = STy->element_begin(), E = STy->element_end(); I != E; ++I) { usigned size =I->get()->getScalarSizeInBits(); //often returns 0, not what I need } Basically I...

...ould be propagated into the code generator. This is http://llvm.org/PR400. It would be great if you were interested in tackling this too, but your patch isn't a regression, so it can go in without it. Comments: *** You need to update LangRef.html. @@ -154,24 +154,28 @@ public: class StructType : public CompositeType { friend class TypeMap<StructValType, StructType>; StructType(const StructType &); // Do not implement const StructType &operator=(const StructType &); // Do not implement + // is this a packed structure? + bool packed;...

...t CS. LLParser.cpp: In LLParser::ParseUnionType, you can use SmallVector instead of std::vector for ParamsList & ParamsListTy. @@ -2135,7 +2173,8 @@ ParseToken(lltok::rparen, "expected ')' in extractvalue constantexpr")) return true; - if (!isa<StructType>(Val->getType()) && !isa<ArrayType>(Val- >getType())) + if (!isa<StructType>(Val->getType()) && !isa<ArrayType>(Val- >getType()) && + !isa<UnionType>(Val->getType())) return Error(ID.Loc, "extractvalue oper...

Hi Rick, On 22/01/13 09:04, Rick Mann wrote: > I'm building a StructType without a body using > > StructType *StructType::create(LLVMContext &Context, StringRef Name); > > and then later adding a body to with setBody(). It starts of isOpaque() == true, and isSized() == false, and after I add the body, isOpaque() == false, but isSized() is still false....

...return nullptr; + } } } @@ -6769,6 +6773,29 @@ void SelectionDAGBuilder::visitPatchpoint(ImmutableCallSite CS, FuncInfo.MF->getFrameInfo()->setHasPatchPoint(); } +void SelectionDAGBuilder::visitTypeidfor(const CallInst &CI) { + SDValue Res; + static std::vector<const StructType *> StructTypes; + int ID = -1; + Value *PtrArg = CI.getArgOperand(0); + PointerType *PTy = cast<PointerType>(PtrArg->getType()); + if (PTy) { + StructType *STy = cast<StructType>(PTy->getElementType()); + if (STy) { + for (unsigned i = 0, N = StructTypes.size(); i != N...

...name: "x", scope: !6, file: !3, line: 2, baseType: !9, size: 32) !9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) !10 = !DIDerivedType(tag: DW_TAG_member, name: "y", scope: !6, file: !3, line: 2, baseType: !9, size: 32, offset: 32) but given just the StructType for S there is no direct way to get to the DICompositeType. I've made something work by prescanning all the DITypes in my Module and creating a map that uses type names as the key, being careful to strip "struct." prefixes and maintain scoping for nested structs (e.g., S1::S2), which...

Currently, Structure layout is left to targets, which implement them according to the ABI of that platform. While this is fine for most structures, it makes packed structures very ugly. All fields in a packed type must be converted to byte arrays with casts to access fields, which bloats accesses and obsfucates the types. First class support for packed types would clean up the generated code

On Jul 25, 2011, at 10:50 AM, Garrison Venn wrote: > Several people on this list have reported issues with the linker regarding a > named StructType instance with the same name in two different modules > being resolved into two StructTypes with different names due to StructType:: > setName(…) collision behavior. Looking at BitcodeReader::ParseTypeTableBody(…), > I don't see use of LLVMContextImpl::NamedStructTypes or of Module::get...

...rser::ParseUnionType, you can use SmallVector instead of std::vector > for ParamsList & ParamsListTy. > > @@ -2135,7 +2173,8 @@ > ParseToken(lltok::rparen, "expected ')' in extractvalue > constantexpr")) > return true; > > - if (!isa<StructType>(Val->getType()) && > !isa<ArrayType>(Val->getType())) > + if (!isa<StructType>(Val->getType()) && > !isa<ArrayType>(Val->getType()) && > + !isa<UnionType>(Val->getType())) > return Error(ID.Loc, "...

My apologies if this has already been discussed/explained (reference?). In browsing the new type system implementation, I was wondering if someone could give a simple example of why one would want to reset the name of a previous realized StructType instance (setBody(...) has been called). My curiosity is enhanced by the fact that reseting a name of a StructType instance may result in a symbol table collision which would result in the renamed name not matching the parameter name to setName(...). This question is for my own edification. It is...

Quick question: how do I get a list of StructType* defined/used in a Module? I can't seem to find an appropriate iterator in the Module class... -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110831/17715c85/attachment.html> -------------- next part...

Nella citazione mercoledì 31 agosto 2011 20:35:46, Chris Lattner ha scritto: > On Aug 31, 2011, at 10:23 AM, Carlo Alberto Ferraris wrote: >> Quick question: how do I get a list of StructType* defined/used in a Module? I can't seem to find an appropriate iterator in the Module class... > Module::findUsedStructTypes. Note that this requires scanning the entire module, it is not an efficient operation. Thanks! By any chance, is there also a way (short of iterating on all instruct...

...k of a better word) of the alloca instruction. Correct. > My suggestion is to use the getAllocatedType() method of the > AllocaInst > class. I'm pretty sure it does what you want: > > if (AI->getAllocatedType()->getTypeID() == Type::StructTyID) > Better: if (isa<StructType>) or if (StructType *sT = dyn_cast<StructType>). — Gordon

...> http://llvm.org/docs/ProgrammersManual.html#BuildRecType > > — Gordon Here it is: : // Create the initial outer struct : PATypeHolder StructTy = OpaqueType::get(); : std::vector<const Type*> Elts; : Elts.push_back(PointerType::get(StructTy)); : Elts.push_back(Type::Int32Ty); : StructType *NewSTy = StructType::get(Elts); Here NewSTy is a pointer to StructType. : // At this point, NewSTy = "{ opaque*, i32 }". Tell VMCore that : // the struct and the opaque type are actually the same. : cast<OpaqueType>(StructTy.get())->refineAbstractTypeTo(NewSTy); : // NewSTy i...

As far as I can tell, when you construct a type using the support library StructType::get, you have to pass in a list of types. How can you make a Recursive type by passing in a pointer to the type you are constucting. An example where something really simple like the line below was output would be perfect. %struct.linked_list = type { %struct.linked_list*, %sbyte* } Thanks fo...

...rser::ParseUnionType, you can use SmallVector instead of std::vector > for ParamsList & ParamsListTy. > > @@ -2135,7 +2173,8 @@ > ParseToken(lltok::rparen, "expected ')' in extractvalue > constantexpr")) > return true; > > - if (!isa<StructType>(Val->getType()) && > !isa<ArrayType>(Val->getType())) > + if (!isa<StructType>(Val->getType()) && > !isa<ArrayType>(Val->getType()) && > + !isa<UnionType>(Val->getType())) > return Error(ID.Loc, "...

Dear All, I’m working on a project that extends C. I’m adding a new type of pointer that is a fat pointer. It has some metadata about the pointed object besides the starting address of the object. Currently I implemented this pointer as an llvm:StructType. In llvm::Type generation function llvm::Type *CodeGenTypes::ConvertType(QualType T) in the case for clang::Type::Pointer, instead of creating an llvm::PointerType I create an llvm::StructType type for this new type of pointer. And I added some helper code in llvm::StructType and in multiple places...

...ctLayout type is also defined in TargetData.h). > > Ciao, > > Duncan. > > > how can i correctly calculate the size of a member of a struct > > (including alignment etc)? > > This doesn't work : > > > > const StructType *STy = cast<StructType>(Ty); > > for (StructType::element_iterator I = STy->element_begin(), > > E = STy->element_end(); I != E; ++I) > > { > > usigned size =I->get()->getScalarSizeInBit...