--- old/src/share/vm/opto/machnode.cpp	2017-08-04 21:19:10.727362067 +0200
+++ new/src/share/vm/opto/machnode.cpp	2017-08-04 21:19:03.892373100 +0200
@@ -716,6 +716,11 @@
 const RegMask &MachCallNode::in_RegMask(uint idx) const {
   // Values in the domain use the users calling convention, embodied in the
   // _in_rms array of RegMasks.
+  if (entry_point() == NULL && idx == TypeFunc::Parms) {
+    // Null entry point is a special cast where the target of the call
+    // is in a register.
+    return MachNode::in_RegMask(idx);
+  }
   if (idx < tf()->domain_sig()->cnt()) {
     return _in_rms[idx];
   }