[Bug ipa/59469] [4.8/4.9 Regression] LLVM build failure with gcc LTO

[hubicka at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59469

--- Comment #46 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Created attachment 32067
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32067&action=edit
Path I am testing

Hi,
this is patch I am testing. It synchronizes the logic in lto-cgraph.c and
ipa-partition.c
It seems I also forgot to commit very old patch for setting
used_from_other_partition flag correctly, with current code we probably can
trigger undefined symbol with COMDAT and cross-partition devirtualization. I
will try to look into that next.