https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67731
--- Comment #3 from rguenther at suse dot de <rguenther at suse dot de> --- On Mon, 28 Sep 2015, olegendo at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67731 > > --- Comment #2 from Oleg Endo <olegendo at gcc dot gnu.org> --- > (In reply to Richard Biener from comment #1) > > Ok, so usually this gets optimized by fold-const.c > > optimize_bit_field_compare but > > appearantly that doesn't work here. Not that I like this function very > > much... > > Can this one be handled by match.pd then? If so, can you please change > this to tree-opt? No, match.pd doesn't work with memory. The various patches to lower bitfield accesses made this work automagically. Thus this PR is probably a dup of some other(s).
