--- a/hotspot/src/cpu/x86/vm/x86_64.ad	Fri Sep 06 20:16:09 2013 +0200
+++ b/hotspot/src/cpu/x86/vm/x86_64.ad	Thu Sep 12 13:51:13 2013 -0700
@@ -2941,7 +2941,7 @@
   c_calling_convention
   %{
     // This is obviously always outgoing
-    (void) SharedRuntime::c_calling_convention(sig_bt, regs, length);
+    (void) SharedRuntime::c_calling_convention(sig_bt, regs, /*regs2=*/NULL, length);
   %}
 
   // Location of compiled Java return values.  Same as C for now.