diff -r caf5eb7dd4a7 -r 882756847a04 hotspot/src/share/vm/c1/c1_GraphBuilder.cpp
--- a/hotspot/src/share/vm/c1/c1_GraphBuilder.cpp	Fri Aug 31 16:39:35 2012 -0700
+++ b/hotspot/src/share/vm/c1/c1_GraphBuilder.cpp	Sat Sep 01 13:25:18 2012 -0400
@@ -887,7 +887,7 @@
           patch_state = copy_state_before();
           t = new ObjectConstant(obj);
         } else {
-          assert(!obj->is_klass(), "must be java_mirror of klass");
+          assert(obj->is_instance(), "must be java_mirror of klass");
           t = new InstanceConstant(obj->as_instance());
         }
         break;
@@ -1434,7 +1434,7 @@
     if (compilation()->env()->dtrace_method_probes()) {
       // Report exit from inline methods
       Values* args = new Values(1);
-      args->push(append(new Constant(new ObjectConstant(method()))));
+      args->push(append(new Constant(new MethodConstant(method()))));
       append(new RuntimeCall(voidType, "dtrace_method_exit", CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), args));
     }
 
@@ -1887,7 +1887,7 @@
     code == Bytecodes::_invokeinterface;
   Values* args = state()->pop_arguments(target->arg_size_no_receiver());
   Value recv = has_receiver ? apop() : NULL;
-  int vtable_index = methodOopDesc::invalid_vtable_index;
+  int vtable_index = Method::invalid_vtable_index;
 
 #ifdef SPARC
   // Currently only supported on Sparc.
@@ -3544,7 +3544,7 @@
     // Report exit from inline methods.  We don't have a stream here
     // so pass an explicit bci of SynchronizationEntryBCI.
     Values* args = new Values(1);
-    args->push(append_with_bci(new Constant(new ObjectConstant(method())), bci));
+    args->push(append_with_bci(new Constant(new MethodConstant(method())), bci));
     append_with_bci(new RuntimeCall(voidType, "dtrace_method_exit", CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), args), bci);
   }
 
@@ -3732,7 +3732,7 @@
 
   if (compilation()->env()->dtrace_method_probes()) {
     Values* args = new Values(1);
-    args->push(append(new Constant(new ObjectConstant(method()))));
+    args->push(append(new Constant(new MethodConstant(method()))));
     append(new RuntimeCall(voidType, "dtrace_method_entry", CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), args));
   }