[Bug c/99707] missing -Woverflow warning in floating-point to integer conversion for known but non-constant value

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99707

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Also this might be caught at runtime with -fsanitizer=undefined but I have not
tried yet. Since this is undefined behavior in this case unlike the original
PR93806.