https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69580
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- With checking turned on aarch64-linux-gnu: tree VRP : 804.96 (61%) usr 0.28 ( 9%) sys 805.19 (61%) wall 35850 kB (14%) ggc dominator optimization : 286.56 (22%) usr 0.19 ( 6%) sys 286.66 (22%) wall 24718 kB (10%) ggc I don't have a compiler right now without checking but this seems huge even for checking case.