[Bug middle-end/112629] Missed-optimization: constant << (b + signed_constant)

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112629

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to gooncreeper from comment #3)
> This optimization could also be performed for unsigned integers if we know
> they won't overflow in the optimization.

Note it is not overflow, is wrap anyways.