[LLVMdev] attaching metadata to llvm::Argument

[Andrew Clinton]

I too would have an immediate application if metadata could be attached 
to arguments.  I'm currently working around it by using named metadata 
in the module (matched by index to the arguments).

Andrew

On 02/21/2011 11:18 AM, Florian Merz wrote:
> Hey everyone,
>
> I'm trying to retrieve information about signed-/unsignedness of an
> llvm::Argument so I can print out it's value to the user properly. llvm itself
> doesn't distinguish signed and unsigned and so llvm::Type is of no help here.
> Checking for nsw/usw is only an unreliable approximation and only available
> for llvm::Instructions anyways.
>
> I tried to use debugging information (llvm::DIType) for this, but
> getMetadata() is not available for llvm::Argument, only for llvm::Instruction.
>
> Is there any other way to get at this information?
>
> Regards,
>   Florian
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