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[Bug tree-optimization/34416] Tree optimization pipeline needs re-tuning
- From: "pinskia at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Dec 2007 12:04:07 -0000
- Subject: [Bug tree-optimization/34416] Tree optimization pipeline needs re-tuning
- References: <bug-34416-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from pinskia at gmail dot com 2007-12-10 12:04 -------
Subject: Re: New: Tree optimization pipeline needs re-tuning
On 10 Dec 2007 10:07:09 -0000, rguenth at gcc dot gnu dot org
<gcc-bugzilla@gcc.gnu.org> wrote:
> - run DCE after vectorization, the IL is completely hosed for
> tree based costs otherwise (affects unrolling costs)
This is already done:
NEXT_PASS (pass_vectorize);
{
struct tree_opt_pass **p = &pass_vectorize.sub;
NEXT_PASS (pass_lower_vector_ssa);
NEXT_PASS (pass_dce_loop);
}
Thanks,
Andrew Pinski
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34416