diff a/src/hotspot/share/adlc/archDesc.cpp b/src/hotspot/share/adlc/archDesc.cpp
--- a/src/hotspot/share/adlc/archDesc.cpp
+++ b/src/hotspot/share/adlc/archDesc.cpp
@@ -1,7 +1,7 @@
 //
-// Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
+// Copyright (c) 1997, 2020, 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
 // under the terms of the GNU General Public License version 2 only, as
 // published by the Free Software Foundation.
@@ -932,20 +932,25 @@
   }
 
   // Match Vector types.
   if (strncmp(idealOp, "Vec",3)==0) {
     switch(last_char) {
+    case 'A':  return "TypeVect::VECTA";
     case 'S':  return "TypeVect::VECTS";
     case 'D':  return "TypeVect::VECTD";
     case 'X':  return "TypeVect::VECTX";
     case 'Y':  return "TypeVect::VECTY";
     case 'Z':  return "TypeVect::VECTZ";
     default:
       internal_err("Vector type %s with unrecognized type\n",idealOp);
     }
   }
 
+  if (strncmp(idealOp, "RegVMask", 8) == 0) {
+    return "Type::BOTTOM";
+  }
+
   // !!!!!
   switch(last_char) {
   case 'I':    return "TypeInt::INT";
   case 'P':    return "TypePtr::BOTTOM";
   case 'N':    return "TypeNarrowOop::BOTTOM";