--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/c1/c1_Decorators.hpp	Thu Apr 26 20:42:43 2018 +0200
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2018, 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_VM_C1_C1_DECORATORS_HPP
+#define SHARE_VM_C1_C1_DECORATORS_HPP
+
+#include "oops/accessDecorators.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+// Use the C1_NEEDS_PATCHING decorator for situations when the access is using
+// an offset that is not yet known and will require patching
+const DecoratorSet C1_NEEDS_PATCHING = DECORATOR_LAST << 1;
+// Use the C1_MASK_BOOLEAN decorator for boolean accesses where the value
+// needs to be masked.
+const DecoratorSet C1_MASK_BOOLEAN   = DECORATOR_LAST << 2;
+// The C1_WRITE_ACCESS decorator is used to mark writing accesses.
+const DecoratorSet C1_WRITE_ACCESS   = DECORATOR_LAST << 3;
+// The C1_READ_ACCESS decorator is used to mark reading accesses.
+const DecoratorSet C1_READ_ACCESS    = DECORATOR_LAST << 4;
+
+#endif // SHARE_VM_C1_C1_DECORATORS_HPP