[Bug tree-optimization/123753] [16 Regression] wrong code with un/signed char array/vector union

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123753

--- Comment #3 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> I think this is the same as PR 123731.

Yes, it ICEs for a lot in the range w/ the same problem we had before