https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117467
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Richard Biener from comment #5) > So confirmed the 25GB memory use is ext-dce, with -fno-ext-dce memory use is > donw to 3GB. The time report then shows VRP as offender: > > tree VRP : 76.20 ( 23%) 125M ( 4%) > dominator optimization : 28.30 ( 8%) 84M ( 3%) > > given 25GB memory use is going to trash most machines this is P1. > > The testcase is quite small but has lots of calls with lots of arguments > that might or might not invoke fortran array copying, it's probably > difficult to reduce sensibly (it has lots of module USEs). Jeff and Andrew > should have access to SPEC, so I won't spend time trying at this point. Note I think PR 116758 is the recording the ranger/DOM/VRP side of things too.
