[Bug ipa/122976] Miscompile with mixed lto/non-lto, -O3 - stack variable getting clobbered with invalid values

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122976

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>The observability of the bug depends on (the equivalent of) calling `free` with an invalid pointer.

That sounds like maybe a misuse of the malloc attribute ...