[Bug ipa/121923] ICF doesn't pass function decl to sanitize_flags_p

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121923

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
  /* { name, min_len, max_len, decl_req, type_req, fn_type_req,
       affects_type_identity, handler, exclude } */

  { "no_sanitize",            1, -1, true, false, false, false,
                              handle_no_sanitize_attribute, NULL },

So we currently don't support it on non function decls it seem:
  if (TREE_CODE (*node) != FUNCTION_DECL)
    {
      warning (OPT_Wattributes, "%qE attribute ignored", name);
      return NULL_TREE;
    }


But that is different from clang ...