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[Bug c++/52241] Performance degradation of 447.dealII on corei7 at spec2006_base32.
- 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, 16 Feb 2012 10:57:19 +0000
- Subject: [Bug c++/52241] Performance degradation of 447.dealII on corei7 at spec2006_base32.
- Auto-submitted: auto-generated
- References: <bug-52241-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52241
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-16 10:57:19 UTC ---
Note that if more inlining in tree.cc even in -fPIC code helps more than just a
single benchmark, we could consider compiling that file with -O3, or use some
attributes/pragmas to ensure it is inlined. So perhaps start with compiling
tree.cc with -O3 instead of -O2 (in both cases with -fPIC -DPIC) and see if it
helps and how much.