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Re: Recent removal of the 'aux' field in tree_common
- From: Diego Novillo <dnovillo at redhat dot com>
- To: Jan Hubicka <jh at suse dot cz>
- Cc: Geoff Keating <geoffk at geoffk dot org>, gcc at gcc dot gnu dot org
- Date: Thu, 28 Feb 2002 12:42:14 -0500
- Subject: Re: Recent removal of the 'aux' field in tree_common
- Organization: Red Hat Canada
- References: <20020228160600.GA5835@tornado.toronto.redhat.com> <jmsn7l8s6t.fsf@desire.geoffk.org> <20020228173327.GA22010@atrey.karlin.mff.cuni.cz>
On Thu, 28 Feb 2002, Jan Hubicka wrote:
> > One problem with the 'aux' field is that it is incompatible with PCH.
> > For PCH, you really want every pointer in every structure to have one
> > and only one type. In particular, you don't want to have void *
> > pointers.
>
> I guess the aux field is used for temporary information only inside
> the tree optimizer, so it is nonissue for PCH.
>
Hmm, but in the future we might want to PCH optimized .h files
with code in them.
Diego.