--- old/src/share/vm/opto/ifnode.cpp	2016-07-03 23:42:56.218526131 +0900
+++ new/src/share/vm/opto/ifnode.cpp	2016-07-03 23:42:56.079526709 +0900
@@ -1451,7 +1451,7 @@
   igvn->hash_delete(this);      // Remove self to prevent spurious V-N
   Node *idom = in(0);
   // Need opcode to decide which way 'this' test goes
-  int prev_op = prev_dom->Opcode();
+  uint prev_op = prev_dom->Opcode();
   Node *top = igvn->C->top(); // Shortcut to top
 
   // Loop predicates may have depending checks which should not
@@ -1505,7 +1505,7 @@
   // Setup to scan up the CFG looking for a dominating test
   Node* dom = in(0);
   Node* prev_dom = this;
-  int op = Opcode();
+  uint op = Opcode();
   // Search up the dominator tree for an If with an identical test
   while (dom->Opcode() != op    ||  // Not same opcode?
          dom->in(1)    != in(1) ||  // Not same input 1?