https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105010
--- Comment #7 from Segher Boessenkool <segher at gcc dot gnu.org> --- Created attachment 52670 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52670&action=edit proposed patch Does this help? The 7450 (which is what freebsd64 defaults to) indeed does not support these instructions, and it isn't clear to me why we generate them at all anyway, but this patch makes us more conservative here still.