[gcc(refs/users/meissner/heads/work190-dmf)] RFC2677-Add xvrlw support.

https://gcc.gnu.org/g:45000c8c6f7f05a0215ee559605523393eede1c3 commit 45000c8c6f7f05a0215ee559605523393eede1c3 Author: Michael Meissner Date: Thu Jan 2 17:54:37 2025 -0500 RFC2677-Add xvrlw support. 2025-01-02 Michael Meissner gcc/ * config/rs6000/alti

[gcc(refs/users/meissner/heads/work190-dmf)] RFC2677-Add xvrlw support.

https://gcc.gnu.org/g:922fedbbd4a70e72d178cab2baefc3951590a025 commit 922fedbbd4a70e72d178cab2baefc3951590a025 Author: Michael Meissner Date: Thu Jan 2 17:54:37 2025 -0500 RFC2677-Add xvrlw support. 2025-01-02 Michael Meissner gcc/ * config/rs6000/alti