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

[trippels at gcc dot gnu.org]

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

--- Comment #14 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Hmm,

markus@x4 gcc % cat test.ii
class A {
  void m();
};
void A::m() {}

markus@x4 gcc % /var/tmp/gcc_build_dir_/./prev-gcc/xg++
-B/var/tmp/gcc_build_dir_/./prev-gcc/ -r -nostdlib -flto -O2 -pipe test.ii
lto1: internal compiler error: in hash_type_name, at ipa-devirt.c:225