--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/cpu/s390/vm/register_s390.cpp	Thu Oct 13 14:49:34 2016 +0200
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016 SAP SE. 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.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "register_s390.hpp"
+
+
+const int ConcreteRegisterImpl::max_gpr = RegisterImpl::number_of_registers * 2;
+const int ConcreteRegisterImpl::max_fpr = ConcreteRegisterImpl::max_gpr +
+                                          FloatRegisterImpl::number_of_registers * 2;
+
+const char* RegisterImpl::name() const {
+  const char* names[number_of_registers] = {
+    "Z_R0",  "Z_R1",  "Z_R2",  "Z_R3",  "Z_R4",  "Z_R5",  "Z_R6",  "Z_R7",
+    "Z_R8",  "Z_R9",  "Z_R10", "Z_R11", "Z_R12", "Z_R13", "Z_R14", "Z_R15"
+  };
+  return is_valid() ? names[encoding()] : "noreg";
+}
+
+const char* FloatRegisterImpl::name() const {
+  const char* names[number_of_registers] = {
+    "Z_F0",  "Z_F1",   "Z_F2",  "Z_F3",   "Z_F4",  "Z_F5",   "Z_F6",  "Z_F7",   "Z_F8",  "Z_F9",
+    "Z_F10", "Z_F11",  "Z_F12", "Z_F13",  "Z_F14", "Z_F15"
+  };
+  return is_valid() ? names[encoding()] : "fnoreg";
+}