[Bug target/124569] m68k: Miscompilation at -O2

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124569

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2026-03-18
             Status|UNCONFIRMED                 |WAITING

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Can you provide the full preprocessed source? As requested on
https://gcc.gnu.org/bugs/ .

Also does -fno-strict-aliasing fixes the issue? I noticed casting to `(object
*)` and then deferencing it which might be an aliasing issue.

Also does `-fno-auto-inc-dec` fix the issue? What about -fno-caller-saves ?

I don't think m68k has been moved over to use LRA, so does -mlra fix the issue?