https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26426
Eric Gallager <egallager at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |RESOLVED Resolution|--- |INVALID --- Comment #3 from Eric Gallager <egallager at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #2) > See https://gcc.gnu.org/ml/gcc-bugs/2017-08/msg01667.html where I said: > > I don't think this is a bug. B is the primary base class for Z so has already > been allocated (as part of the Y subobject, in I-2b), and so the B base class > of the X subobject is not allocated as part of the X (in III). > > https://itanium-cxx-abi.github.io/cxx-abi/abi.html#a17 Since Chris hasn't responded, I'm closing this accordingly.