[Bug rtl-optimization/92080] Missed CSE of _mm512_set1_epi8(c) with _mm256_set1_epi8(c)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92080

--- Comment #11 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #6)
> Similar when vectorizing
> 
> int a[4096];
> 
> void foo ()
> {
>   for (int i = 1; i < 4095; ++i)
>     a[i] = 42;
> }

This was actually reported by me in PR 99639 but for aarch64.