https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87657
--- Comment #5 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> --- > Not that word_mode vectorization costing in the backend is in any way > correct... With that patch, the i686-pc-linux-gnu bootstrap completed without regressions. Thanks. An x86_64-pc-linux-gnu (both multilibs) had completed before even with the vanilla tree.