[Bug rtl-optimization/88593] internal compiler error: in verify_dominators, at dominance.c:1184

[amonakov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88593

--- Comment #4 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
It seems to avoid this sort of gotchas cleanup_cfg should

  gcc_checking_assert (!dom_info_available_p (CDI_DOMINATORS));
  gcc_checking_assert (!dom_info_available_p (CDI_POST_DOMINATORS));

but maybe there's a deeper reason it's not done already — I cannot be sure.