[Bug target/101200] Unneeded AND after shift

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101200

--- Comment #7 from Jeffrey A. Law <law at gcc dot gnu.org> ---
FWIW, it might be worth considering using a mode iterator for the shift count
to allow multiple modes.