--- a/src/hotspot/cpu/ppc/ppc.ad	Thu Sep 05 12:39:48 2019 +0200
+++ b/src/hotspot/cpu/ppc/ppc.ad	Thu Sep 05 13:56:17 2019 +0200
@@ -10867,6 +10867,14 @@
   ins_pipe(pipe_class_default);
 %}
 
+instruct castLL(iRegLdst dst) %{
+  match(Set dst (CastLL dst));
+  format %{ " -- \t// castLL of $dst" %}
+  size(0);
+  ins_encode( /*empty*/ );
+  ins_pipe(pipe_class_default);
+%}
+
 instruct checkCastPP(iRegPdst dst) %{
   match(Set dst (CheckCastPP dst));
   format %{ " -- \t// checkcastPP of $dst" %}