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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 13:48:59 +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 #11 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-16 13:48:59 UTC ---
libtool apparently creates convenience libraries only with -fPIC stuff in it,
instead of having two sets of objects for each source, one -fPIC and one
non-fPIC.
Not sure if it is possible to override that behavior somehow.
So, when in 4.6 we had just libsupc++_convenience.la linked into libstdc++.la,
only the libsupc++ objects were -fPIC in libstdc++.a and the rest, not coming
from convenience library, was -fno-pic. Now that everything else comes also
from convenience libraries, everything is -fPIC. Not sure what is desirable...