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[Bug middle-end/47298] -O3 destroys beautifully vectorized code obtained at -O2
- From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 05 Jul 2012 10:30:09 +0000
- Subject: [Bug middle-end/47298] -O3 destroys beautifully vectorized code obtained at -O2
- Auto-submitted: auto-generated
- References: <bug-47298-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47298
--- Comment #11 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-07-05 10:30:09 UTC ---
> Oh, and you can disable cunrolli already via -fdisable-tree-cunrolli.
Indeed, I always forget that we have it in 4.7 and above.