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Date: Wed, 06 Jul 2005 12:47:00 -0000
From: Diego Novillo <dnovillo@redhat.com>
To: Michael Tegtmeyer <tegtmeye@mail.eecis.udel.edu>
Cc: gcc@gcc.gnu.org
Subject: Re: Existing tree functionality?
Message-ID: <20050706124729.GA4590@topo.toronto.redhat.com>
References: <Pine.GSO.4.62.0507060827160.884@stimpy.eecis.udel.edu>
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On Wed, Jul 06, 2005 at 08:32:38AM -0400, Michael Tegtmeyer wrote:

> Is there existing functionality somewhere to sweep a function and collect 
> all externally visible variables at the tree level or do I need to roll my 
> own? I've looked in tree.h and grepped around as much as I could but I 
> haven't found anything obvious.
> 
Referenced variables are collected by tree-dfa.c:find_referenced_vars.
Once collected, you can distinguish locals from globals with
is_global_var().


Diego.