[Bug c/92220] -Wconversion generates a false warning for modulo expression when the modulus has smaller type

[xry111 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92220

--- Comment #5 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
Unfortunately the value range info is not available in the frontend :(.