[Bug target/123089] [16 regression] [x86] Excessive run time with -march=znver3

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123089

--- Comment #12 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #10)
> So I take that back `h = &c;` is never executed so it never hits undefined
> behavior.

Rather after the assignment of h, h is never deferenced afterwards.