[Bug target/62178] [AArch64] Performance regression on matrix matrix multiply due to r211211

[amker at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62178

--- Comment #2 from amker at gcc dot gnu.org ---
Yes, the patch changes addressing modes choosing and further changes ivopts's
decision.  I shall take this one if you are ok.

Thanks,
bin