https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99718
--- Comment #5 from Segher Boessenkool <segher at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #3) > If the non-constant vec_set can't be supported when > !(TARGET_P8_VECTOR && TARGET_DIRECT_MOVE_64BIT) I don't see why not? It may need different code, sure, but that is much preferable over contorting the rest of the backend.