https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87861
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 45178 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=45178&action=edit gcc9-ia64-constexpr-virtual.patch Here is untested patch to fix all g++.dg/cpp2a/constexpr-virtual*.C failures, not sure if it is related or not. I don't have access to ia64 so can't really test this.
