[PATCH] Change representation of dllexport/dllimport

[Reid Kleckner]

On Mon, Sep 9, 2013 at 11:06 AM, Anton Korobeynikov <anton at korobeynikov.info
> wrote:

> >   Why do you say that dllimport could be any visibility?  Is it useful
> to have a visibility(non-hidden) + dllimport symbol?
> Because dllimport has nothing wrt the visibility. Visibility is
> essnetially ELF'ish thing. dllexport can be thought as "default"
> visibility and everything else is hidden visibility by default, but
> dllimport does not fit into this semantics. Trying to fit them into
> visibility is essentialy a workaround


Right, one cannot map dllimport to an existing visibility.  But since it
doesn't make sense to combine any other visibility with dllimport, it seems
like you could create a new LLVM visibility value for dllimport that
doesn't map to ELF visibility.
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