https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86158
--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
So apparently it started with r265391, where following hunk removal fixed that:
diff --git a/gcc/gimple-ssa-evrp-analyze.c b/gcc/gimple-ssa-evrp-analyze.c
index b7b0fd8f17c..45c215d78c6 100644
--- a/gcc/gimple-ssa-evrp-analyze.c
+++ b/gcc/gimple-ssa-evrp-analyze.c
@@ -209,10 +209,6 @@ evrp_range_analyzer::record_ranges_from_incoming_edge
(basic_block bb)
value_range *old_vr = get_value_range (vrs[i].first);
value_range tem (old_vr->kind (), old_vr->min (), old_vr->max
());
tem.intersect (vrs[i].second);
- if (tem.kind () == old_vr->kind ()
- && tem.min () == old_vr->min ()
- && tem.max () == old_vr->max ())
- continue;
push_value_range (vrs[i].first, vrs[i].second);
if (is_fallthru
&& all_uses_feed_or_dominated_by_stmt (vrs[i].first, stmt))
and as mentioned on IRC, w/o -fdump-tree-all it's all fine.
