[cfe-dev] Question on VisitVAArgExpr()

[Sylvere Teissier]

> The LLVM va_arg instruction isn't really well-supported generally...
> it might work, but probably not, and it's not a well-tested codepath.
> Your best option is adding an implementation at the clang level.
> 
> -Eli
> 

Why the LLVM va_arg instruction still exist if we can't use it?

It should be marked deprecated and then removed in futures version,
isn't it ?