https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64798
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- Created attachment 34591 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34591&action=edit patch Ok, so it was bogus to assume size_t would cover the largest alignment needed. Can test check the attached patch please?