--- old/src/hotspot/share/ci/ciMethod.hpp	2019-05-31 20:41:47.935555177 +0800
+++ new/src/hotspot/share/ci/ciMethod.hpp	2019-05-31 20:41:47.699554761 +0800
@@ -126,6 +126,12 @@
   void assert_virtual_call_type_ok(int bci);
   void assert_call_type_ok(int bci);
 
+  // Update profile counters with saturating addition
+  template <typename L, typename R> int saturated_add(L a, R b);
+
+  // Check and update the profile counter in case of overflow
+  int check_overflow(int c, int bci);
+
  public:
   void check_is_loaded() const                   { assert(is_loaded(), "not loaded"); }