[Bug ipa/109770] wrong(?) devirtualization

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109770

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
A less questionable case would may be if A were derived from B instead of only
a common base?