[Bug fortran/37131] inline matmul for small matrix sizes

[tkoenig at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37131
Bug 37131 depends on bug 66189, which changed state.

Bug 66189 Summary: Block loops for inline matmul
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66189

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|---                         |WONTFIX