https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79575
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Version|unknown |7.0.1 Resolution|--- |FIXED Target Milestone|--- |7.0 --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- Can't reproduce on trunk head. I guess it's fixed with 2017-03-07 Richard Biener <rguent...@suse.de> * tree-vect-loop-manip.c (slpeel_add_loop_guard): Preserve preheaders. from the description.