https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71595
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Known to work| |6.2.1 Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org --- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- Debug patch: diff --git a/gcc/tree-ssa-loop-ivcanon.c b/gcc/tree-ssa-loop-ivcanon.c index beb65b0..6948e62 100644 --- a/gcc/tree-ssa-loop-ivcanon.c +++ b/gcc/tree-ssa-loop-ivcanon.c @@ -1379,6 +1379,8 @@ tree_unroll_loops_completely (bool may_increase_size, bool unroll_outer) unloop_loops (loop_closed_ssa_invalidated, &irred_invalidated); + verify_loop_structure (); + /* We can not use TODO_update_ssa_no_phi because VOPS gets confused. */ if (loop_closed_ssa_invalidated && !bitmap_empty_p (loop_closed_ssa_invalidated)) mine.