http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59622
--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 31561 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31561&action=edit gcc49-pr59622-2.patch So, do we want something like this? For incompatible return type or argument types punt, unless it is the __builtin_unreachable/__cxa_pure_virtual case which can be handled the same, and similarly punt for inplace if the call flags would change?