[Bug middle-end/58585] [4.9 Regression] ICE in ipa with virtual inheritance

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58585

--- Comment #17 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
The patch seems to work and it seems to give correct answers for various cases
of multiple inheritance I can think of.  I would welcome testing on the
original sources and if it looks fine, I will go ahead with it.

Honza