https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119147
--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> --- With speculation_useful_p we now are able to constant propagate stride into mc_chroma with PGO, but it does not help runtime. https://gcc.gnu.org/pipermail/gcc-patches/2025-April/680055.html solves the costing issue. Vectorizer is still disabling itself when loop trip count is small even if vectorization of cascaded epilogue is still a good idea.
