[Bug target/89607] Missing optimization for store of multiple registers on arm and aarch64

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89607

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I think this should be filed as two seperate issues.  For aarch64, this might
have been fixed already for 9.0.