[Bug c++/126312] Bad ARM64 codegen: mandatory copy elision not enforced creates dangling reference

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126312

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu.org
     Ever confirmed|0                           |1
           Keywords|                            |ABI
   Last reconfirmed|                            |2026-07-17
             Target|                            |aarch64 avr
             Status|UNCONFIRMED                 |NEW

--- Comment #2 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.  The problem is an ABI issue.
GCC thinks val_ref can be returned via registers rather than an invisible
pointer.