https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68973
--- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> --- Give a cost model change exposed this I suspect the cost mode fix (PR68961) hid this again. Just debug the issue ontop of r231674 please - it is definitely a latent issue. Or try -fno-vect-cost-model on g++.dg/pr67211.C and trunk.
