src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp

rev 57745 : 8240872: Shenandoah: Avoid updating new regions from start of evacuation
Reviewed-by: shade
rev 57746 : 8240873: Shenandoah: Short-cut arraycopy barriers
Reviewed-by: shade

*** 2292,2301 ****
--- 2292,2302 ----
        HeapWord* update_watermark = r->get_update_watermark();
        assert (update_watermark >= r->bottom(), "sanity");
        if (r->is_active() && !r->is_cset()) {
          _heap->marked_object_oop_iterate(r, &cl, update_watermark);
        }
+       r->set_update_watermark(r->bottom());
        if (ShenandoahPacing) {
          _heap->pacer()->report_updaterefs(pointer_delta(update_watermark, r->bottom()));
        }
        if (_heap->check_cancelled_gc_and_yield(_concurrent)) {
          return;