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Re: [C++ PATCH] Hide __for_{range,begin,end} symbols (PR c++/85515)


On Tue, Jul 03, 2018 at 11:58:31AM +0200, Richard Biener wrote:
> On Tue, Jul 3, 2018 at 11:43 AM Jakub Jelinek <jakub@redhat.com> wrote:
> >
> > On Tue, Jul 03, 2018 at 11:34:51AM +0200, Richard Biener wrote:
> > > Can we make them DECL_ARTIFICIAL and/or make name-lookup never
> >
> > They are DECL_ARTIFICIAL already.
> >
> > > lookup DECL_ARTIFICIAL vars instead?
> >
> > Not sure about that, will try to gather some statistics on how often we
> > rely on name-lookup of DECL_ARTIFICIALs.
> 
> Hmm, we might indeed.  At least we should make sure those
> cases never have valid identifiers?  Or is the implementation

At least __FUNCTION__, __PRETTY_FUNCTION__, __func__ are all local
VAR_DECLs with DECL_ARTIFICIAL that need to be found by name lookup
(so far gathered stats just show __FUNCTION__ in lookup_name_real_1).

	Jakub


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