[Bug target/77934] pattern for mtvsrdd needs to use b constraint not r

[wschmidt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77934

Bill Schmidt <wschmidt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Bill Schmidt <wschmidt at gcc dot gnu.org> ---
Fixed a couple of weeks ago.