https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72712
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- Now that we have another (early) pass things should be even worse. Current trunk at -O2 with -fno-checking improved though (I guess by means of a cost model or so): phase opt and generate : 69.39 (99%) usr 0.98 (98%) sys 72.38 (99%) wall 289872 kB (97%) ggc tree SSA incremental : 16.94 (24%) usr 0.00 ( 0%) sys 17.36 (24%) wall 13582 kB ( 5%) ggc backwards jump threading: 5.04 ( 7%) usr 0.00 ( 0%) sys 5.20 ( 7%) wall 115843 kB (39%) ggc PRE : 18.37 (26%) usr 0.25 (25%) sys 19.13 (26%) wall 270 kB ( 0%) ggc
