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[Bug tree-optimization/52188] [4.7 regression] IPA-CP change broke libstdc++ symbol versioning on Solaris
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 10 Feb 2012 11:31:00 +0000
- Subject: [Bug tree-optimization/52188] [4.7 regression] IPA-CP change broke libstdc++ symbol versioning on Solaris
- Auto-submitted: auto-generated
- References: <bug-52188-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52188
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-02-10
Ever Confirmed|0 |1
--- Comment #6 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-02-10 11:31:00 UTC ---
So, if we'd want to be really consistent with symbols remaining in the
libstdc++ object files at different optimization levels (I guess if you
build libstdc++ with -O3 things might be different again) then we need
to avoid removing unused instantiated templates as part of the optimization
process. Not sure on what basis we choose to be exported symbols right now.