diff -r 8a18c7457c88 -r 96b5af7d4202 src/hotspot/share/opto/node.hpp
--- a/src/hotspot/share/opto/node.hpp	Thu Jun 14 15:34:19 2018 +0200
+++ b/src/hotspot/share/opto/node.hpp	Thu Jun 14 15:46:19 2018 +0200
@@ -542,7 +542,7 @@
   }
   // Swap input edge order.  (Edge indexes i1 and i2 are usually 1 and 2.)
   void swap_edges(uint i1, uint i2) {
-    debug_only(uint check_hash = (VerifyHashTableKeys && _hash_lock) ? hash() : NO_HASH);
+    debug_only(uint check_hash = (VerifyHashTableKeys && _hash_lock) ? hash() : (uint)NO_HASH);
     // Def-Use info is unchanged
     Node* n1 = in(i1);
     Node* n2 = in(i2);
@@ -1705,7 +1705,7 @@
 public:
   void set_type(const Type* t) {
     assert(t != NULL, "sanity");
-    debug_only(uint check_hash = (VerifyHashTableKeys && _hash_lock) ? hash() : NO_HASH);
+    debug_only(uint check_hash = (VerifyHashTableKeys && _hash_lock) ? hash() : (uint)NO_HASH);
     *(const Type**)&_type = t;   // cast away const-ness
     // If this node is in the hash table, make sure it doesn't need a rehash.
     assert(check_hash == NO_HASH || check_hash == hash(), "type change must preserve hash code");