https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83238
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Testing obvious patch (make code match comment):
Index: gcc/graphite-scop-detection.c
===================================================================
--- gcc/graphite-scop-detection.c (revision 255309)
+++ gcc/graphite-scop-detection.c (working copy)
@@ -570,8 +570,7 @@ scop_detection::merge_sese (sese_l first
which post-dominates dom, until it stabilizes. Also, ENTRY->SRC and
EXIT->DEST should be in the same loop nest. */
if (!dominated_by_p (CDI_DOMINATORS, pdom, dom)
- || loop_depth (entry->src->loop_father)
- != loop_depth (exit->dest->loop_father))
+ || entry->src->loop_father != exit->dest->loop_father)
return invalid_sese;
/* For now we just bail out when there is a loop exit in the region
