--- a/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Thu Apr 04 21:15:43 2013 -0700
+++ b/src/cpu/x86/vm/templateInterpreter_x86_64.cpp	Tue Apr 09 17:17:41 2013 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2003, 2013, 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
@@ -300,13 +300,12 @@
         Label* overflow,
         Label* profile_method,
         Label* profile_method_continue) {
-  const Address invocation_counter(rbx, in_bytes(Method::invocation_counter_offset()) +
-                                        in_bytes(InvocationCounter::counter_offset()));
+  Label done;
   // Note: In tiered we increment either counters in Method* or in MDO depending if we're profiling or not.
   if (TieredCompilation) {
     int increment = InvocationCounter::count_increment;
     int mask = ((1 << Tier0InvokeNotifyFreqLog)  - 1) << InvocationCounter::count_shift;
-    Label no_mdo, done;
+    Label no_mdo;
     if (ProfileInterpreter) {
       // Are we profiling?
       __ movptr(rax, Address(rbx, Method::method_data_offset()));
@@ -319,25 +318,36 @@
       __ jmpb(done);
     }
     __ bind(no_mdo);
-    // Increment counter in Method* (we don't need to load it, it's in ecx).
-    __ increment_mask_and_jump(invocation_counter, increment, mask, rcx, true, Assembler::zero, overflow);
+    // Increment counter in MethodCounters
+    const Address invocation_counter(rax,
+                  MethodCounters::invocation_counter_offset() +
+                  InvocationCounter::counter_offset());
+    __ get_method_counters(rbx, rax, done);
+    __ increment_mask_and_jump(invocation_counter, increment, mask, rcx,
+                               false, Assembler::zero, overflow);
     __ bind(done);
   } else {
-    const Address backedge_counter(rbx,
-                                   Method::backedge_counter_offset() +
-                                   InvocationCounter::counter_offset());
+    const Address backedge_counter(rax,
+                  MethodCounters::backedge_counter_offset() +
+                  InvocationCounter::counter_offset());
+    const Address invocation_counter(rax,
+                  MethodCounters::invocation_counter_offset() +
+                  InvocationCounter::counter_offset());
 
-    if (ProfileInterpreter) { // %%% Merge this into MethodData*
-      __ incrementl(Address(rbx,
-                            Method::interpreter_invocation_counter_offset()));
+    __ get_method_counters(rbx, rax, done);
+
+    if (ProfileInterpreter) {
+      __ incrementl(Address(rax,
+              MethodCounters::interpreter_invocation_counter_offset()));
     }
     // Update standard invocation counters
-    __ movl(rax, backedge_counter);   // load backedge counter
+    __ movl(rcx, invocation_counter);
+    __ incrementl(rcx, InvocationCounter::count_increment);
+    __ movl(invocation_counter, rcx); // save invocation count
 
-    __ incrementl(rcx, InvocationCounter::count_increment);
+    __ movl(rax, backedge_counter);   // load backedge counter
     __ andl(rax, InvocationCounter::count_mask_value); // mask out the status bits
 
-    __ movl(invocation_counter, rcx); // save invocation count
     __ addl(rcx, rax);                // add both counters
 
     // profile_method is non-null only for interpreted method so
@@ -354,6 +364,7 @@
 
     __ cmp32(rcx, ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit));
     __ jcc(Assembler::aboveEqual, *overflow);
+    __ bind(done);
   }
 }
 
@@ -843,9 +854,6 @@
   address entry_point = __ pc();
 
   const Address constMethod       (rbx, Method::const_offset());
-  const Address invocation_counter(rbx, Method::
-                                        invocation_counter_offset() +
-                                        InvocationCounter::counter_offset());
   const Address access_flags      (rbx, Method::access_flags_offset());
   const Address size_of_parameters(rcx, ConstMethod::
                                         size_of_parameters_offset());
@@ -876,10 +884,6 @@
   // (static native method holder mirror/jni oop result)
   __ push((int) NULL_WORD);
 
-  if (inc_counter) {
-    __ movl(rcx, invocation_counter);  // (pre-)fetch invocation count
-  }
-
   // initialize fixed part of activation frame
   generate_fixed_frame(true);
 
@@ -1296,9 +1300,6 @@
   address entry_point = __ pc();
 
   const Address constMethod(rbx, Method::const_offset());
-  const Address invocation_counter(rbx,
-                                   Method::invocation_counter_offset() +
-                                   InvocationCounter::counter_offset());
   const Address access_flags(rbx, Method::access_flags_offset());
   const Address size_of_parameters(rdx,
                                    ConstMethod::size_of_parameters_offset());
@@ -1343,10 +1344,6 @@
     __ bind(exit);
   }
 
-  // (pre-)fetch invocation count
-  if (inc_counter) {
-    __ movl(rcx, invocation_counter);
-  }
   // initialize fixed part of activation frame
   generate_fixed_frame(false);