--- a/src/hotspot/share/adlc/adlparse.cpp	Tue Nov 26 16:09:23 2019 +0300
+++ b/src/hotspot/share/adlc/adlparse.cpp	Tue Nov 26 16:09:25 2019 +0300
@@ -123,6 +123,7 @@
     parse_err(SEMERR, "Did not declare 'register' definitions");
   }
   regBlock->addSpillRegClass();
+  regBlock->addDynamicRegClass();
 
   // Done with parsing, check consistency.