https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96791
--- Comment #23 from Segher Boessenkool <segher at gcc dot gnu.org> --- Changing the ABI (silently, even!) is never an expected thing. All of the four 32-bit ABIs we support have an AltiVec variant that isn't fully compatible to the non-AltiVec base variant. It would be a huge disservice to the user to change the ABI from under his/her feet. Anyway, patch in testing.