[Bug ipa/62051] [9/10/11/12 Regression] Undefined reference to vtable with -O2 and -fdevirtualize-speculatively

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62051

--- Comment #26 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Is this even valid?

That is Base and Derived in the shared library and the main program are
considered two different classes because of -fvisibility=hidden and the classes
are not marked as visibility default.