--- old/src/share/vm/ci/ciMethod.cpp	2014-03-20 11:29:01.718631955 +0100
+++ new/src/share/vm/ci/ciMethod.cpp	2014-03-20 11:29:01.199269805 +0100
@@ -80,6 +80,7 @@
   _code_size          = h_m()->code_size();
   _intrinsic_id       = h_m()->intrinsic_id();
   _handler_count      = h_m()->exception_table_length();
+  _size_of_parameters = h_m()->size_of_parameters();
   _uses_monitors      = h_m()->access_flags().has_monitor_bytecodes();
   _balanced_monitors  = !_uses_monitors || h_m()->access_flags().is_monitor_matching();
   _is_c1_compilable   = !h_m()->is_not_c1_compilable();
@@ -877,6 +878,27 @@
   return iter.get_method(will_link, declared_signature);
 }
 
+// How much stack slots is this invoke going to add or remove?
+int ciMethod::get_stack_effect_at_invoke(int bci, Bytecodes::Code code, int& inputs) {
+  assert(Bytecodes::is_invoke(code), "not an invoke");
+  bool ignored_will_link;
+  ciSignature* declared_signature = NULL;
+  ciMethod* ignored_callee = get_method_at_bci(bci, ignored_will_link, &declared_signature);
+  assert(declared_signature != NULL, "cannot be null");
+  inputs   = declared_signature->arg_size_for_bc(code);
+  int size = declared_signature->return_type()->size();
+  return size - inputs;
+}
+
+int ciMethod::get_stack_effect_if_at_invoke(int bci) {
+  Bytecodes::Code code = java_code_at_bci(bci);
+  if (Bytecodes::is_invoke(code)) {
+    int ignored = 0;
+    return get_stack_effect_at_invoke(bci, code, ignored);
+  }
+  return 0;
+}
+
 // ------------------------------------------------------------------
 // Adjust a CounterData count to be commensurate with
 // interpreter_invocation_count.  If the MDO exists for