diff -r 8eeacdc76bf2 -r 75aa3e39d02c hotspot/src/share/vm/opto/phaseX.cpp
--- a/hotspot/src/share/vm/opto/phaseX.cpp	Wed Jul 05 11:03:19 2017 -0700
+++ b/hotspot/src/share/vm/opto/phaseX.cpp	Thu Jul 06 01:50:26 2017 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -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;
@@ -694,6 +694,7 @@
   case Type::Top:  return (ConNode*) C->top();
   case Type::Int:  return intcon( t->is_int()->get_con() );
   case Type::Long: return longcon( t->is_long()->get_con() );
+  default:         break;
   }
   if (t->is_zero_type())
     return zerocon(t->basic_type());
@@ -1675,6 +1676,8 @@
   case Type::Long:
     assert(t0->isa_long()->_widen <= t->isa_long()->_widen, "widen increases");
     break;
+  default:
+    break;
   }
   return true;
 }