https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82397
--- Comment #4 from rguenther at suse dot de <rguenther at suse dot de> --- On Wed, 4 Oct 2017, amonakov at gcc dot gnu.org wrote: > 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. I believe we exactly left them there because they catches more equalities and data_ref_compare_tree was supposed to only order non-equal ones.
