https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78685
--- Comment #15 from Eric Gallager <egallager at gcc dot gnu.org> --- (In reply to Tom de Vries from comment #13) > (In reply to Tom de Vries from comment #12) > > Created attachment 44343 [details] > > > [debug] Add fkeep-vars-live > > > Guality testing status: Og -fkeep-vars-live gives better results than Og for > > pr54200.c and pr54970.c, but worse results here: > > ... > > FAIL: gcc.dg/guality/csttest.c -Og -fkeep-vars-live -DPREVENT_OPTIMIZATION > > \ > > line 29 n == -(0x17ULL << 50) > > FAIL: gcc.dg/guality/csttest.c -Og -fkeep-vars-live -DPREVENT_OPTIMIZATION > > \ > > line 55 j == -(0x17ULL << 31) > > ... > > Looks like an independent problem, filed as PR86455 - "var-tracking > mishandles pre_dec". That's been fixed now... time to give this one another try?
