https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117007
--- Comment #18 from Steven Munroe <munroesj at gcc dot gnu.org> --- (In reply to Segher Boessenkool from comment #17) > Hi! > > So, why do we not generate xxspltib where it would help. Please send a > patch? > Improvements will usually be to the xxspltib-generating code itself, not to > the legacy code that generates the old (correct, but not ideal here) > sequence! For power9 xxspltib is appropriate. but power8 needs vspltisb. PVECLIB still supports power8. Also vspltisw may be preferred for power9 (for range -16...15) for vector int. Otherwise xxspltib/vextsb2w is required.