--- old/src/share/vm/opto/phaseX.cpp	2017-07-02 11:30:45.000000000 +0200
+++ new/src/share/vm/opto/phaseX.cpp	2017-07-02 11:30:45.000000000 +0200
@@ -395,7 +395,7 @@
   // Unlock all nodes upon replacement of table.
   if (&nh == this)  return;
   if (_table != (Node**)badAddress)  clear();
-  memcpy(this, &nh, sizeof(*this));
+  memcpy((void*)this, (void*)&nh, sizeof(*this));
   // Do not increment hash_lock counts again.
   // Instead, be sure we never again use the source table.
   ((NodeHash*)&nh)->_table = (Node**)badAddress;
@@ -1676,6 +1676,8 @@
   case Type::Long:
     assert(t0->isa_long()->_widen <= t->isa_long()->_widen, "widen increases");
     break;
+  default:
+    break;
   }
   return true;
 }