--- /dev/null	2017-03-07 11:44:12.271151064 +0100
+++ new/src/share/vm/gc/shared/c1ModRefBSCodeGen.hpp	2017-04-25 16:46:27.507171274 +0200
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 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_VM_GC_SHARED_C1MODREFBSCODEGEN_HPP
+#define SHARE_VM_GC_SHARED_C1MODREFBSCODEGEN_HPP
+
+#include "gc/shared/c1BarrierSetCodeGen.hpp"
+
+class C1ModRefBSCodeGen : public C1BarrierSetCodeGen {
+protected:
+  virtual void pre_barrier(LIRGenerator* lir_generator, C1DecoratorSet decorators,
+                           LIR_Opr addr_opr, LIR_Opr pre_val, CodeEmitInfo* info) {}
+  virtual void post_barrier(LIRGenerator* lir_generator, C1DecoratorSet decorators,
+                            LIR_OprDesc* addr, LIR_OprDesc* new_val) {}
+
+  virtual void store_at_resolved(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
+                                 LIR_Opr addr, LIRItem& base, LIR_Opr offset, LIR_Opr value,
+                                 CodeEmitInfo* patch_info, CodeEmitInfo* store_emit_info);
+
+  virtual LIR_Opr cas_at_resolved(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
+                                  LIR_Opr addr, LIRItem& base, LIRItem& offset, LIRItem& cmp_value, LIRItem& new_value);
+
+  virtual LIR_Opr swap_at_resolved(LIRGenerator* lir_generator, C1DecoratorSet decorators, BasicType type,
+                                   LIR_Opr addr, LIRItem& base, LIRItem& offset, LIRItem& value);
+};
+
+#endif // SHARE_VM_GC_SHARED_C1MODREFBSCODEGEN_HPP