This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
Re: [PATCH] Copyprop through aggregates.
- From: dberlin at dberlin dot org
- To: "Richard Guenther" <rguenther at suse dot de>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Sat, 4 Feb 2006 07:50:42 -0800 (PST)
- Subject: Re: [PATCH] Copyprop through aggregates.
- References: <Pine.LNX.4.63.0602041326000.6210@t148.fhfr.qr>
>
> This patch enhances copyprop to see through store/load pairs to
> aggregates by walking virtual use-def chains. See
> http://gcc.gnu.org/ml/gcc-patches/2006-01/msg01972.html
> for SPEC results and numbers for extra copyprop opportunities
> during a gcc bootstrap (though not including INDIRECT_REF bases
> at that time due to the missing fix for get_ref_base_and_extent -
> I can re-do the measurement, though).
>
> Bootstrapped and tested on x86_64-unknown-linux-gnu for all languages
> including Ada.
>
> Ok for mainline?
>
I'm curious why you keep having to add -fno-tree-salias to testcases.
Since this is not the default, ISTM you should be showing improvement
without it.
Otherwise, what's the point?