[Bug middle-end/114176] Failure to optimize out useless stack spill when array is present in union

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114176

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2024-02-29

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed. the issue is argument passing only.
the middle-end forces the argument to the stack and that causes issues.
See PR 101926 and you will see there might be a dup of this too.