[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 #9 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #8)
> (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).

And the code looks like it was working in GCC 9.5.0.