diff --git a/src/hotspot/share/opto/loopnode.hpp b/src/hotspot/share/opto/loopnode.hpp
index 548a21f568a..70c403d30a5 100644
--- a/src/hotspot/share/opto/loopnode.hpp
+++ b/src/hotspot/share/opto/loopnode.hpp
@@ -1483,7 +1483,7 @@ public:
   IfNode* insert_cmpi_loop_exit(IfNode* if_cmpu, IdealLoopTree *loop);
   void remove_cmpi_loop_exit(IfNode* if_cmp, IdealLoopTree *loop);
   // Utility to register node "n" with PhaseIdealLoop
-  void register_node(Node* n, IdealLoopTree *loop, Node* pred, int ddepth);
+  void register_node(Node* n, IdealLoopTree* loop, Node* pred, uint ddepth);
   // Utility to create an if-projection
   ProjNode* proj_clone(ProjNode* p, IfNode* iff);
   // Force the iff control output to be the live_proj
diff --git a/src/hotspot/share/opto/loopopts.cpp b/src/hotspot/share/opto/loopopts.cpp
index 599d94a9f08..acdaf578a8a 100644
--- a/src/hotspot/share/opto/loopopts.cpp
+++ b/src/hotspot/share/opto/loopopts.cpp
@@ -2711,7 +2711,7 @@ Node* PhaseIdealLoop::stay_in_loop( Node* n, IdealLoopTree *loop) {
 
 //------------------------------ register_node -------------------------------------
 // Utility to register node "n" with PhaseIdealLoop
-void PhaseIdealLoop::register_node(Node* n, IdealLoopTree *loop, Node* pred, int ddepth) {
+void PhaseIdealLoop::register_node(Node* n, IdealLoopTree* loop, Node* pred, uint ddepth) {
   _igvn.register_new_node_with_optimizer(n);
   loop->_body.push(n);
   if (n->is_CFG()) {
@@ -2770,7 +2770,7 @@ ProjNode* PhaseIdealLoop::insert_if_before_proj(Node* left, bool Signed, BoolTes
   IfNode* iff = proj->in(0)->as_If();
   IdealLoopTree *loop = get_loop(proj);
   ProjNode *other_proj = iff->proj_out(!proj->is_IfTrue())->as_Proj();
-  int ddepth = dom_depth(proj);
+  uint ddepth = dom_depth(proj);
 
   _igvn.rehash_node_delayed(iff);
   _igvn.rehash_node_delayed(proj);
@@ -2831,7 +2831,7 @@ RegionNode* PhaseIdealLoop::insert_region_before_proj(ProjNode* proj) {
   IfNode* iff = proj->in(0)->as_If();
   IdealLoopTree *loop = get_loop(proj);
   ProjNode *other_proj = iff->proj_out(!proj->is_IfTrue())->as_Proj();
-  int ddepth = dom_depth(proj);
+  uint ddepth = dom_depth(proj);
 
   _igvn.rehash_node_delayed(iff);
   _igvn.rehash_node_delayed(proj);