[Bug middle-end/37150] basic-block vectorization misses some unrolled loops

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37150

--- Comment #26 from Richard Biener <rguenth at gcc dot gnu.org> ---
I believe that https://gcc.gnu.org/ml/gcc-patches/2016-11/msg00686.html will
fix this (currently in testing).