[Bug tree-optimization/88398] vectorization failure for a small loop to do byte comparison

[guojiufu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88398

--- Comment #39 from Jiu Fu Guo <guojiufu at gcc dot gnu.org> ---
I’m thinking to draft a patch for this optimization.  If any suggestions,
please point out, thanks.