[Bug tree-optimization/101758] Inconsistent optimizations with UBSan

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101758

--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #8)
> Created attachment 51253 [details]
> Better patch
> 
> here is the better patch which also handles the alignment check :).

The main thing is address space i think. Let me double check what is done in
sanopt.cc vs the above patch