[Bug tree-optimization/120907] vectorizer creates redundunt vec_perm_expr for reversed access of array

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120907

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This is 100% a dup.