https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71448
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- The C++ FE would need to substitute &"bar" for bar to make the simplification valid unless we start relying on undefinedness of pointer wrapping (which we don't seem to). Eventually fold_comparison simply misses CONSTANT_CLASS_P handling alongside DECL_P handling.
