--- a/src/hotspot/share/opto/chaitin.cpp	Wed May 01 12:41:26 2019 -0400
+++ b/src/hotspot/share/opto/chaitin.cpp	Wed May 01 12:31:29 2019 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2019, 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
@@ -2084,9 +2084,7 @@
 // Dump a register name into a buffer.  Be intelligent if we get called
 // before allocation is complete.
 char *PhaseChaitin::dump_register( const Node *n, char *buf  ) const {
-  if( this == NULL ) {          // Not got anything?
-    sprintf(buf,"N%d",n->_idx); // Then use Node index
-  } else if( _node_regs ) {
+  if( _node_regs ) {
     // Post allocation, use direct mappings, no LRG info available
     print_reg( get_reg_first(n), this, buf );
   } else {