[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
----------------------------------------------------------------------------
      Known to work|                            |7.1.0
   Target Milestone|---                         |12.5
            Summary|Wrong vzeroupper at the     |[12/13/14/15 Regression]
                   |function epilogue           |vzeroupper emitted even
                   |                            |though the upper half of
                   |                            |the z registers are
                   |                            |returned
      Known to fail|                            |9.1.0