autovectorization - Robuta Search

https://inbox.sourceware.org/gcc-patches/CAFiYyc3jhQQqyWRmUHe4Qn7mDJkzruDUQu8t=Uh5TYNkGT5ZEQ@mail.gmail.com/T/ [Unfinished PATCH] Add first-order recurrence autovectorization first order unfinished patch add recurrence