--- /dev/null	2021-01-19 17:38:25.908523431 +0000
+++ new/src/cpu/aarch64/vm/vmreg_aarch64.inline.hpp	2021-01-25 19:32:04.422767467 +0000
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2013, Red Hat Inc.
+ * Copyright (c) 2006, 2010, 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.
+ *
+ * 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.
+ *
+ */
+
+#ifndef CPU_AARCH64_VM_VMREG_AARCH64_INLINE_HPP
+#define CPU_AARCH64_VM_VMREG_AARCH64_INLINE_HPP
+
+inline VMReg RegisterImpl::as_VMReg() {
+  if( this==noreg ) return VMRegImpl::Bad();
+  return VMRegImpl::as_VMReg(encoding() << 1 );
+}
+
+inline VMReg FloatRegisterImpl::as_VMReg() {
+  return VMRegImpl::as_VMReg((encoding() << 1) + ConcreteRegisterImpl::max_gpr);
+}
+
+inline bool VMRegImpl::is_Register() {
+  return (unsigned int) value() < (unsigned int) ConcreteRegisterImpl::max_gpr;
+}
+
+inline bool VMRegImpl::is_FloatRegister() {
+  return value() >= ConcreteRegisterImpl::max_gpr && value() < ConcreteRegisterImpl::max_fpr;
+}
+
+inline Register VMRegImpl::as_Register() {
+
+  assert( is_Register(), "must be");
+  // Yuk
+  return ::as_Register(value() >> 1);
+}
+
+inline FloatRegister VMRegImpl::as_FloatRegister() {
+  assert( is_FloatRegister() && is_even(value()), "must be" );
+  // Yuk
+  return ::as_FloatRegister((value() - ConcreteRegisterImpl::max_gpr) >> 1);
+}
+
+inline   bool VMRegImpl::is_concrete() {
+  assert(is_reg(), "must be");
+  return is_even(value());
+}
+
+#endif // CPU_AARCH64_VM_VMREG_AARCH64_INLINE_HPP