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[Bug target/58529] GCC -funroll-loops 150% slower with -march=native on x86-64
- From: "burnus at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 11 Oct 2013 07:51:08 +0000
- Subject: [Bug target/58529] GCC -funroll-loops 150% slower with -march=native on x86-64
- Auto-submitted: auto-generated
- References: <bug-58529-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58529
--- Comment #11 from Tobias Burnus <burnus at gcc dot gnu.org> ---
I wonder whether the approach of Teresa's patch might help with this issue, cf.
(first email) http://gcc.gnu.org/ml/gcc-patches/2011-12/msg00123.html
(latest patch) http://gcc.gnu.org/ml/gcc-patches/2011-12/msg00321.html
(latest email) http://gcc.gnu.org/ml/gcc-patches/2012-03/msg01931.html
The mentioned follow-up patch is
http://gcc.gnu.org/ml/gcc-patches/2012-04/msg00239.html