https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82397
--- Comment #3 from Alexander Monakov <amonakov at gcc dot gnu.org> --- Is it possible to simply invoke data_ref_compare_tree always, without checking operand_equal_p beforehand? It's possible to canonicalize commutative chains in data_ref_compare_tree, or - even better - while generating trees in the first place; I don't understand why the operand_equal_p checks are there, they seem more costly than what data_ref_compare_tree does.
