[Bug tree-optimization/52188] [4.7 regression] IPA-CP change broke libstdc++ symbol versioning on Solaris

[rguenth at gcc dot gnu.org]

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.