https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65979
--- Comment #29 from Oleg Endo <olegendo at gcc dot gnu.org> --- BTW, there is still one unresolved known problem which can silently generate wrong code: PR 56451 Although the testsuite FAIL might have disappeared, the issue hasn't been actually fixed, as far as I know. In the worst case, delay slot stuffing can be disabled with -fno-delayed-branch.