src/share/vm/opto/node.cpp

@@ -1430,16 +1430,10 @@
     return true;
   }
   return false;
 }
 
-//------------------------------Ideal_DU_postCCP-------------------------------
-// Idealize graph, using DU info.  Must clone result into new-space
-Node *Node::Ideal_DU_postCCP( PhaseCCP * ) {
-  return NULL;                 // Default to no change
-}
-
 //------------------------------hash-------------------------------------------
 // Hash function over Nodes.
 uint Node::hash() const {
   uint sum = 0;
   for( uint i=0; i<_cnt; i++ )  // Add in all inputs

@@ -2124,10 +2118,18 @@
     }
   }
   return found;
 }
 
+void Node::ensure_control_or_add_prec(Node* c) {
+  if (in(0) == NULL) {
+    set_req(0, c);
+  } else if (in(0) != c) {
+    add_prec(c);
+  }
+}
+
 //=============================================================================
 //------------------------------yank-------------------------------------------
 // Find and remove
 void Node_List::yank( Node *n ) {
   uint i;