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[Bug rtl-optimization/55278] [4.8/4.9 Regression] Botan performance regressions apparently due to LRA
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 09 May 2013 13:59:06 +0000
- Subject: [Bug rtl-optimization/55278] [4.8/4.9 Regression] Botan performance regressions apparently due to LRA
- Auto-submitted: auto-generated
- References: <bug-55278-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55278
--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I've attached two rotate patches to PR57157. They seem to improve
#c6 runtime slightly (from:
real 0m6.303s
user 0m6.293s
sys 0m0.000s
to:
real 0m5.920s
user 0m5.913s
sys 0m0.000s
) but guess there are other issues to look at (perhaps RA can be one thing,
what else?).