[Bug ipa/123227] [13/14/15/16 regression] ICF forgets to compare nonnull attribute (and thus member and non-member functions)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123227

--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
reproducible
unsequenced