--- /dev/null	2018-04-03 12:55:20.301839954 +0200
+++ new/src/hotspot/share/gc/z/zUtils.inline.hpp	2018-06-08 19:46:46.972882394 +0200
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2015, 2017, 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 SHARE_GC_Z_ZUTILS_INLINE_HPP
+#define SHARE_GC_Z_ZUTILS_INLINE_HPP
+
+#include "gc/z/zOop.inline.hpp"
+#include "gc/z/zUtils.hpp"
+#include "oops/oop.inline.hpp"
+#include "utilities/align.hpp"
+#include "utilities/copy.hpp"
+#include "utilities/debug.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+inline size_t ZUtils::round_up_power_of_2(size_t value) {
+  assert(value != 0, "Invalid value");
+
+  if (is_power_of_2(value)) {
+    return value;
+  }
+
+  return (size_t)1 << (log2_intptr(value) + 1);
+}
+
+inline size_t ZUtils::round_down_power_of_2(size_t value) {
+  assert(value != 0, "Invalid value");
+  return (size_t)1 << log2_intptr(value);
+}
+
+inline size_t ZUtils::bytes_to_words(size_t size_in_bytes) {
+  assert(is_aligned(size_in_bytes, BytesPerWord), "Size not word aligned");
+  return size_in_bytes >> LogBytesPerWord;
+}
+
+inline size_t ZUtils::words_to_bytes(size_t size_in_words) {
+  return size_in_words << LogBytesPerWord;
+}
+
+inline size_t ZUtils::object_size(uintptr_t addr) {
+  return words_to_bytes(ZOop::to_oop(addr)->size());
+}
+
+inline void ZUtils::object_copy(uintptr_t from, uintptr_t to, size_t size) {
+  Copy::aligned_disjoint_words((HeapWord*)from, (HeapWord*)to, bytes_to_words(size));
+}
+
+#endif // SHARE_GC_Z_ZUTILS_INLINE_HPP