--- a/src/cpu/x86/vm/cppInterpreter_x86.cpp	Tue Jun 18 14:23:29 2013 -0700
+++ b/src/cpu/x86/vm/cppInterpreter_x86.cpp	Wed Jun 19 10:45:56 2013 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2007, 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
@@ -539,12 +539,11 @@
 
     // compute full expression stack limit
 
-    const int extra_stack = 0; //6815692//Method::extra_stack_words();
     __ movptr(rdx, Address(rbx, Method::const_offset()));
     __ load_unsigned_short(rdx, Address(rdx, ConstMethod::max_stack_offset())); // get size of expression stack in words
     __ negptr(rdx);                                                       // so we can subtract in next step
     // Allocate expression stack
-    __ lea(rsp, Address(rsp, rdx, Address::times_ptr, -extra_stack));
+    __ lea(rsp, Address(rsp, rdx, Address::times_ptr, -Method::extra_stack_words()));
     __ movptr(STATE(_stack_limit), rsp);
   }
 
@@ -570,20 +569,28 @@
 // rcx: invocation counter
 //
 void InterpreterGenerator::generate_counter_incr(Label* overflow, Label* profile_method, Label* profile_method_continue) {
-
-  const Address invocation_counter(rbx, Method::invocation_counter_offset() + InvocationCounter::counter_offset());
-  const Address backedge_counter  (rbx, Method::backedge_counter_offset() + InvocationCounter::counter_offset());
-
-  if (ProfileInterpreter) { // %%% Merge this into MethodData*
-    __ incrementl(Address(rbx,Method::interpreter_invocation_counter_offset()));
+  Label done;
+  const Address invocation_counter(rax,
+                MethodCounters::invocation_counter_offset() +
+                InvocationCounter::counter_offset());
+  const Address backedge_counter  (rax,
+                MethodCounter::backedge_counter_offset() +
+                InvocationCounter::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);
   __ increment(rcx, InvocationCounter::count_increment);
+  __ movl(invocation_counter, rcx);             // save invocation count
+
+  __ 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
@@ -593,7 +600,7 @@
   __ cmp32(rcx,
            ExternalAddress((address)&InvocationCounter::InterpreterInvocationLimit));
   __ jcc(Assembler::aboveEqual, *overflow);
-
+  __ bind(done);
 }
 
 void InterpreterGenerator::generate_counter_overflow(Label* do_continue) {
@@ -684,10 +691,9 @@
   // Always give one monitor to allow us to start interp if sync method.
   // Any additional monitors need a check when moving the expression stack
   const int one_monitor = frame::interpreter_frame_monitor_size() * wordSize;
-  const int extra_stack = 0; //6815692//Method::extra_stack_entries();
   __ movptr(rax, Address(rbx, Method::const_offset()));
   __ load_unsigned_short(rax, Address(rax, ConstMethod::max_stack_offset())); // get size of expression stack in words
-  __ lea(rax, Address(noreg, rax, Interpreter::stackElementScale(), extra_stack + one_monitor));
+  __ lea(rax, Address(noreg, rax, Interpreter::stackElementScale(), one_monitor+Method::extra_stack_words()));
   __ lea(rax, Address(rax, rdx, Interpreter::stackElementScale(), overhead_size));
 
 #ifdef ASSERT
@@ -977,7 +983,6 @@
   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());
 
@@ -1029,8 +1034,6 @@
   }
 #endif
 
-  if (inc_counter) __ movl(rcx, invocation_counter);  // (pre-)fetch invocation count
-
   const Register unlock_thread = LP64_ONLY(r15_thread) NOT_LP64(rax);
   NOT_LP64(__ movptr(unlock_thread, STATE(_thread));) // get thread
   // Since at this point in the method invocation the exception handler
@@ -2260,8 +2263,7 @@
   const int overhead_size = sizeof(BytecodeInterpreter)/wordSize +
     ( frame::sender_sp_offset - frame::link_offset) + 2;
 
-  const int extra_stack = 0; //6815692//Method::extra_stack_entries();
-  const int method_stack = (method->max_locals() + method->max_stack() + extra_stack) *
+  const int method_stack = (method->max_locals() + method->max_stack()) *
                            Interpreter::stackElementWords;
   return overhead_size + method_stack + stub_code;
 }
@@ -2326,8 +2328,7 @@
   // Need +1 here because stack_base points to the word just above the first expr stack entry
   // and stack_limit is supposed to point to the word just below the last expr stack entry.
   // See generate_compute_interpreter_state.
-  int extra_stack = 0; //6815692//Method::extra_stack_entries();
-  to_fill->_stack_limit = stack_base - (method->max_stack() + extra_stack + 1);
+  to_fill->_stack_limit = stack_base - (method->max_stack() + 1);
   to_fill->_monitor_base = (BasicObjectLock*) monitor_base;
 
   to_fill->_self_link = to_fill;
@@ -2375,8 +2376,7 @@
                                                 monitor_size);
 
   // Now with full size expression stack
-  int extra_stack = 0; //6815692//Method::extra_stack_entries();
-  int full_frame_size = short_frame_size + (method->max_stack() + extra_stack) * BytesPerWord;
+  int full_frame_size = short_frame_size + method->max_stack() * BytesPerWord;
 
   // and now with only live portion of the expression stack
   short_frame_size = short_frame_size + tempcount * BytesPerWord;