[Bug target/61656] Undefined behavior in classify_argument

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61656

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
So, are you ok with the #c0 pseudo patch?  I guess I can bootstrap/regtest it
today.