https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117833
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Or just change char buf[8]; to char buf[16]; The function has char buf[16]; elsewhere, so it won't make the frame larger. In any case, I think gcc/go/gofrontend/ needs to go through upstream.