https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84371
--- Comment #4 from Will Schmidt <willschm at gcc dot gnu.org> --- The scope of the problem here seems to have changed in the last week. Now seeing a number of " error: builtin function '__builtin_altivec_neg_v2df' requires the '-mpower8-vector' option " will investigate, & probably run the builtin-3 tests through a blender to sort this out..