[Bug target/89485] Support vectorcall calling convention on windows

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89485

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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             Target|                            |x86_64-*-*-mingw32
          Component|c                           |target
           Severity|normal                      |enhancement