--- a/hotspot/src/share/vm/opto/loopnode.cpp	Tue May 05 19:27:08 2015 +0200
+++ b/hotspot/src/share/vm/opto/loopnode.cpp	Tue May 05 12:33:57 2015 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -3678,6 +3678,7 @@
 }
 
 void PhaseIdealLoop::dump( IdealLoopTree *loop, uint idx, Node_List &rpo_list ) const {
+  CloneMap& cm = C->clone_map();
   loop->dump_head();
 
   // Now scan for CFG nodes in the same loop
@@ -3709,6 +3710,7 @@
         cached_idom = find_non_split_ctrl(cached_idom);
       }
       tty->print(" ID:%d",computed_idom->_idx);
+      cm.dump(n->_idx);
       n->dump();
       if( cached_idom != computed_idom ) {
         tty->print_cr("*** BROKEN IDOM!  Computed as: %d, cached as: %d",
@@ -3728,6 +3730,7 @@
           for( uint j = 0; j < loop->_nest; j++ )
             tty->print("  ");
           tty->print(" ");
+          cm.dump(m->_idx);
           m->dump();
         }
       }