--- a/hotspot/src/cpu/x86/vm/c1_MacroAssembler_x86.hpp	Tue Nov 24 10:30:23 2015 +0100
+++ b/hotspot/src/cpu/x86/vm/c1_MacroAssembler_x86.hpp	Mon Nov 23 11:06:14 2015 +0100
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 2015, 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
@@ -117,4 +117,7 @@
 
   void invalidate_registers(bool inv_rax, bool inv_rbx, bool inv_rcx, bool inv_rdx, bool inv_rsi, bool inv_rdi) PRODUCT_RETURN;
 
+  // This platform only uses signal-based null checks. The Label is not needed.
+  void null_check(Register r, Label *Lnull = NULL) { MacroAssembler::null_check(r); }
+
 #endif // CPU_X86_VM_C1_MACROASSEMBLER_X86_HPP