[Bug tree-optimization/122976] [13/14/15/16 Regression] Miscompile with mixed lto/non-lto, -O3 - stack variable getting clobbered with invalid values

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

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

--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Martin Jambor from comment #7)
> Created attachment 63967 [details]
> Small artificial testcase
> 
> Small artificial testcase that leads to checking error or miscompilation
> even on master.

This ICEs all the way back to at least GCC 10.1.0 (with -fchecking).