*** old/src/cpu/x86/vm/interp_masm_x86.cpp	Tue Sep  6 17:16:29 2016
--- new/src/cpu/x86/vm/interp_masm_x86.cpp	Tue Sep  6 17:16:28 2016

*** 610,619 ****
--- 610,620 ----
  }
  
  void InterpreterMacroAssembler::push_l(Register r) {
    subptr(rsp, 2 * wordSize);
    movq(Address(rsp, 0), r);
+   movptr(Address(rsp, Interpreter::expr_offset_in_bytes(1)), NULL_WORD );
  }
  
  void InterpreterMacroAssembler::pop(TosState state) {
    switch (state) {
    case atos: pop_ptr();                 break;