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Subject: Re: [tree-ssa] Garbage collector x bb annotations
From: Diego Novillo <dnovillo@redhat.com>
To: Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
Cc: "gcc@gcc.gnu.org" <gcc@gcc.gnu.org>
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On Mon, 2003-10-06 at 18:31, Zdenek Dvorak wrote:
> Hello,
> 
> I have just run into the following problem: dom_children get released by
> ggc_collect call in tree-ssa-pre.  Allocating them by ggc seems wrong to
> me, since basic block annotations are allocated from obstack and
> invisible to garbage collector.
> 
Yeah.  But there's more than that, unfortunately.  All the fields in
struct bb_ann_d are ggc allocated.  The real solution would be to
finally convert basic blocks to ggc.  Volunteers?


Diego.