[Bug tree-optimization/85615] [8/9 Regression] ICE at -O2 and above on valid code on x86_64-linux-gnu: in dfs_enumerate_from, at cfganal.c:1197

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85615

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Regresses gcc.dg/uninit-20.c.

Trying

          if (bb->loop_father != e2->src->loop_father
              && (!loop_exit_edge_p (e2->src->loop_father, e2)
                  || flow_loop_nested_p (bb->loop_father, 
                                         e2->dest->loop_father)))

instead.