[Bug ipa/59775] [4.9 Regression] internal compiler error: Segmentation fault

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59775

--- Comment #8 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
OK,
this testcase shows the get_binfo_at_offset bug I mentioned in the first
virtual inheritance PR.

We call get_binfo_at_offset for binfo of C looking for A at offset 64. This is
correct query, but becase get_binfo_at_offsets walks fields and then it tries
to match binfos, it actually looks up field representing A already in C and
does not find A among direct bases of C.

I suppose we will need to dive into the bases in get_binfo_at_offset same way
as ipa-devirt does.