thartmann [Fri, 13 Oct 2017 14:02:01 +0200] rev 47623
8189067: SuperWord optimization crashes with "assert(out == prev || prev == __null) failed: no branches off of store slice"
Summary: Only move the store if the LCA of all users is outside of the loop. Re-enable UseSubwordForMaxVector.
Reviewed-by: kvn, roland