[Bug target/116512] [12/13/14/15 Regression] vzeroupper emitted even though the upper half of the z registers are returned

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116512

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2024-08-28
      Known to work|                            |6.1.0, 6.4.0, 7.2.0
      Known to fail|                            |6.5.0, 7.3.0, 7.5.0, 8.1.0
           Keywords|                            |wrong-code

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.

Looks like the use of XImode which is missed.