https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90329
--- Comment #29 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 46359 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46359&action=edit gcc10-pr90329.patch Untested workaround that isn't a too big hammer. This should just avoid tail calls in functions where the hidden string arguments for character(len=constant) dummy arguments are passed partially or fully on the stack and the callee needs to pass anything on the stack and thus might clobber that.
