[Bug tree-optimization/97519] builtin_constant_p (x + cst) should be optimized to builtin_constant_p (x)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97519

--- Comment #4 from Drea Pinski <pinskia at gcc dot gnu.org> ---
We remove casts now ...