[LLVMdev] Structure declaration with IR builder

[Manuele Conti]

Hi,
I test your code and it works!!!
but I didn't understand if "create a function" it necessary for my aims.
What I tried to do is declare a structured to allow after declaration
global or local structured variables.
How I can I do?

Thanks,
Manuele

Il 31/01/2013 10:14, Garba,Peter ha scritto:
> Hi,
>
> that's what I'm doing ...
>
> //Init the struct type
>    llvm::StructType *structReg = llvm::StructType::create(TargetModule->getContext(),vMember, "struct.Foo");
>    structRegPtr = llvm::PointerType::get(structReg, 0);
>
> //Create a llvm function
>      llvm::FunctionType* ty = llvm::FunctionType::get(llvm::Type::getInt32Ty(TargetModule->getContext()),structRegPtr,false);
>      llvm::Constant *c = TargetModule->getOrInsertFunction(BB.getBlockName(),ty);
>      fTest = llvm::cast<llvm::Function>(c);
>      fTest ->setCallingConv(llvm::CallingConv::C);
>
> //Access the struct members
> llvm:Value *ArgValuePtr = builder->CreateStructGEP(fTest ->arg_begin(),0,"ptrMember1");
> llvm::Valuie *StructValue = builder->CreateLoad(ArgValuePtr,false,"member1");
>
> Cheers,
> Peter
>
> Peter Garba - Software Engineer - +49 (0)89 894221 190 - Peter.Garba at safenet-inc.com
>
>
> -----Original Message-----
> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of Manuele Conti
> Sent: Donnerstag, 31. Januar 2013 08:49
> To: llvmdev at cs.uiuc.edu
> Subject: [LLVMdev] Structure declaration with IR builder
>
> Hi All,
> I tryed to create a global structured derived declaration in my compiler by:
> StructType *st = StructType(getGlobalContext(),  elements, false);
>
> In dump module i didn't find any code needed to declare a new user data type.
>
> Is there a instruction to add this class into current module?
>
>
> Cheers,
> Manuele
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