https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109192
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> --- On a fast machine compile eventually finishes and a time-report looks like dominator optimization : 156.84 ( 52%) 0.00 ( 0%) 156.86 ( 52%) 112k ( 1%) backwards jump threading : 145.15 ( 48%) 0.00 ( 0%) 145.15 ( 48%) 70k ( 0%) TOTAL : 302.15 0.02 302.19 16M