[cfe-dev] attributes on function arguments

[Marshall Clow]

At 8:38 PM -0700 5/30/09, Nick Lewycky wrote:
>I tried to implement a novel attribute, "__attribute__((nocapture))" 
>which would apply LLVM's "nocapture" attribute to pointer-typed 
>parameters or arguments in a function declaration or call. There 
>don't seem to be any attributes like this to copy the technique.
>
>The attribute goes onto the ParamVarDecl just fine but those don't 
>seem to line up with the CGFunctionInfo's args due to things like 
>implicit "this" and such. Also, it doesn't seem like ArgInfo is a 
>good place to put an attribute like nocapture.
>
>Does anyone have a suggestion for how this should work in Clang? 
>I've attached my attempt at an implementation.

Um, no you didn't. :-(
-- 
-- Marshall

Marshall Clow     Idio Software   <mailto:marshall at idio.com>

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