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

[wilco at gcc dot gnu.org]

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

--- Comment #44 from Wilco <wilco at gcc dot gnu.org> ---
(In reply to Jiu Fu Guo from comment #43)
> To handle vectorization for this kind of code, it needs to overcome the hard
> issue mentioned in comment #5: the loop has 2 exits.

Yes and that also implies vector loads are unsafe unless they are non-faulting.
Few ISAs have such support.