--- old/src/share/vm/gc_implementation/shenandoah/shenandoahHeuristics.cpp	2019-11-11 16:09:58.526342799 +0100
+++ new/src/share/vm/gc_implementation/shenandoah/shenandoahHeuristics.cpp	2019-11-11 16:09:58.440342804 +0100
@@ -39,6 +39,14 @@
   else return 0;
 }
 
+int ShenandoahHeuristics::compare_by_garbage_then_alloc_seq_ascending(RegionData a, RegionData b) {
+  int r = compare_by_garbage(a, b);
+  if (r != 0) {
+    return r;
+  }
+  return compare_by_alloc_seq_ascending(a, b);
+}
+
 int ShenandoahHeuristics::compare_by_alloc_seq_ascending(RegionData a, RegionData b) {
   if (a._seqnum_last_alloc == b._seqnum_last_alloc)
     return 0;