[Bug target/106601] __builtin_bswap16 code gen could be improved with ZBB enabled

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106601

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 53479
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53479&action=edit
Patch which is under test