--- a/src/hotspot/share/gc/shenandoah/shenandoahVerifier.hpp	Mon Apr 08 13:33:28 2019 -0400
+++ b/src/hotspot/share/gc/shenandoah/shenandoahVerifier.hpp	Mon Apr 08 19:43:04 2019 +0200
@@ -135,6 +135,9 @@
 
     // Nothing is in progress, some objects are forwarded
     _verify_gcstate_forwarded,
+
+    // Evacuation is in progress, some objects are forwarded
+    _verify_gcstate_evacuation,
   } VerifyGCState;
 
   struct VerifyOptions {
@@ -173,6 +176,7 @@
   void verify_before_concmark();
   void verify_after_concmark();
   void verify_before_evacuation();
+  void verify_during_evacuation();
   void verify_after_evacuation();
   void verify_before_updaterefs();
   void verify_after_updaterefs();