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PHI_NODE memory reduction, WAS: Re: RFC: GIMPLE tuples. Design and implementation proposal

From: "Andrew Pinski" <pinskia at gmail dot com>
To: "Diego Novillo" <dnovillo at redhat dot com>
Cc: gcc at gcc dot gnu dot org
Date: Tue, 10 Apr 2007 14:28:04 -0700
Subject: PHI_NODE memory reduction, WAS: Re: RFC: GIMPLE tuples. Design and implementation proposal

On 4/10/07, Andrew Pinski <pinskia@gmail.com> wrote:

On 4/10/07, Andrew Pinski <pinskia@gmail.com> wrote:
> Here is the quick patch (thanks to the work done for gimple tuple)
> which does this, removes the unneeded type from phi nodes.  I have not
> tested it except for a quick test on some small testcases so there
> might be more places which use TREE_CHAIN instead of PHI_CHAIN.

This patch has one problem, the GC issue with chain_next and
lang_tree_node, this problem is not hard to fix.


And here is that patch still not fully test except this time compiling
some simple C++ code and without ICEing in the gc collect :).

Thanks,
Andrew Pinski

Attachment: phinode.diff.txt
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