[Bug c/82078] wrong code at -O3 in both 32-bit and 64-bit modes on x86_64-linux-gnu

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82078

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> >  b = f = e[2][5] = a[5][0];
> 
> 
> You are writing past the array bounds of e[2] and reading past the array
> bounds of a there.

Actually not reading past the array bounds of a.  But past the bounds of e[2]
still stands.