https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68707
--- Comment #7 from rguenther at suse dot de <rguenther at suse dot de> --- On Tue, 8 Dec 2015, alalaw01 at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68707 > > --- Comment #6 from alalaw01 at gcc dot gnu.org --- > Well, I can confirm that the patch generates load-lanes/store-lanes instead of > SLP, all over the (vect) testsuite. All execution tests are passing :) so it > *may* just be a case of updating a lot of scan-tree-dump tests but we'll need > to do at least some performance evaluation, watch this space. Eh ;) From discussion on IRC it seems that we should retain SLP if the SLP code wouldn't need any permutation (and then we can also include some special-casing of very low-trip loops). I'll update the patch tomorrow also trying to handle the interleaving case (to make testing effects on my side easier).
