--- a/src/hotspot/cpu/x86/sharedRuntime_x86_64.cpp	Mon Nov 06 09:41:54 2017 +0100
+++ b/src/hotspot/cpu/x86/sharedRuntime_x86_64.cpp	Mon Nov 06 04:14:22 2017 -0800
@@ -2183,7 +2183,7 @@
   // critical natives they are offset down.
   GrowableArray<int> arg_order(2 * total_in_args);
   VMRegPair tmp_vmreg;
-  tmp_vmreg.set1(rbx->as_VMReg());
+  tmp_vmreg.set2(rbx->as_VMReg());
 
   if (!is_critical_native) {
     for (int i = total_in_args - 1, c_arg = total_c_args - 1; i >= 0; i--, c_arg--) {