[Bug tree-optimization/119186] Using __builtin_ctz results in a error result.

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119186

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
__builtin_ctz with a value of 0 is undefined..