diff -r e9a5e0a812c8 -r 35acf8f0a2e4 src/share/vm/opto/subnode.cpp
--- a/src/share/vm/opto/subnode.cpp	Sat Jan 07 13:26:43 2012 -0800
+++ b/src/share/vm/opto/subnode.cpp	Tue Jan 10 18:05:38 2012 -0800
@@ -91,7 +91,7 @@
 
   // Not correct for SubFnode and AddFNode (must check for infinity)
   // Equal?  Subtract is zero
-  if (phase->eqv_uncast(in1, in2))  return add_id();
+  if (in1->eqv_uncast(in2))  return add_id();
 
   // Either input is BOTTOM ==> the result is the local BOTTOM
   if( t1 == Type::BOTTOM || t2 == Type::BOTTOM )