--- old/src/share/vm/opto/node.cpp	2016-07-03 23:43:04.847490267 +0900
+++ new/src/share/vm/opto/node.cpp	2016-07-03 23:43:04.708490845 +0900
@@ -905,7 +905,7 @@
 }
 
 // Find out of current node that matches opcode.
-Node* Node::find_out_with(int opcode) {
+Node* Node::find_out_with(uint opcode) {
   for (DUIterator_Fast imax, i = fast_outs(imax); i < imax; i++) {
     Node* use = fast_out(i);
     if (use->Opcode() == opcode) {
@@ -916,14 +916,14 @@
 }
 
 // Return true if the current node has an out that matches opcode.
-bool Node::has_out_with(int opcode) {
+bool Node::has_out_with(uint opcode) {
   return (find_out_with(opcode) != NULL);
 }
 
 // Return true if the current node has an out that matches any of the opcodes.
-bool Node::has_out_with(int opcode1, int opcode2, int opcode3, int opcode4) {
+bool Node::has_out_with(uint opcode1, uint opcode2, uint opcode3, uint opcode4) {
   for (DUIterator_Fast imax, i = fast_outs(imax); i < imax; i++) {
-      int opcode = fast_out(i)->Opcode();
+      uint opcode = fast_out(i)->Opcode();
       if (opcode == opcode1 || opcode == opcode2 || opcode == opcode3 || opcode == opcode4) {
         return true;
       }
@@ -1131,7 +1131,7 @@
 bool Node::has_special_unique_user() const {
   assert(outcnt() == 1, "match only for unique out");
   Node* n = unique_out();
-  int op  = Opcode();
+  uint op  = Opcode();
   if (this->is_Store()) {
     // Condition for back-to-back stores folding.
     return n->Opcode() == op && n->in(MemNode::Memory) == this;
@@ -2290,7 +2290,7 @@
 //--------------------------find_similar------------------------------
 // Return a node with opcode "opc" and same inputs as "this" if one can
 // be found; Otherwise return NULL;
-Node* Node::find_similar(int opc) {
+Node* Node::find_similar(uint opc) {
   if (req() >= 2) {
     Node* def = in(1);
     if (def && def->outcnt() >= 2) {