[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 #24 from Richard Biener <rguenth at gcc dot gnu.org> ---
Oh, and the duplicate costing is from the repeated use of pol_z(:,0,kg) and
similar terms.  It's counted only once during scalar cost compute and not at
all
if not all of the uses are vectorized.