[Bug tree-optimization/108757] We do not simplify (a - (N*M)) / N + M -> a / N

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108757

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I am not sure this can be done in the normal case unless you know the range of
a to be [64...INF] .
The wrap around case might be an issue ...
But I am not 100% sure.