--- /dev/null	2018-11-30 10:10:44.238550338 +0100
+++ new/src/hotspot/cpu/aarch64/gc/shenandoah/shenandoahBarrierSetAssembler_aarch64.hpp	2018-11-30 10:22:33.840547750 +0100
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
+ *
+ * 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_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP
+#define CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP
+
+#include "asm/macroAssembler.hpp"
+#include "gc/shared/barrierSetAssembler.hpp"
+#ifdef COMPILER1
+class LIR_Assembler;
+class ShenandoahPreBarrierStub;
+class ShenandoahWriteBarrierStub;
+class StubAssembler;
+class StubCodeGenerator;
+#endif
+
+class ShenandoahBarrierSetAssembler: public BarrierSetAssembler {
+private:
+
+  static address _shenandoah_wb;
+
+  void satb_write_barrier_pre(MacroAssembler* masm,
+                              Register obj,
+                              Register pre_val,
+                              Register thread,
+                              Register tmp,
+                              bool tosca_live,
+                              bool expand_call);
+  void shenandoah_write_barrier_pre(MacroAssembler* masm,
+                                    Register obj,
+                                    Register pre_val,
+                                    Register thread,
+                                    Register tmp,
+                                    bool tosca_live,
+                                    bool expand_call);
+
+  void read_barrier(MacroAssembler* masm, Register dst);
+  void read_barrier_impl(MacroAssembler* masm, Register dst);
+  void read_barrier_not_null(MacroAssembler* masm, Register dst);
+  void read_barrier_not_null_impl(MacroAssembler* masm, Register dst);
+  void write_barrier(MacroAssembler* masm, Register dst);
+  void write_barrier_impl(MacroAssembler* masm, Register dst);
+  void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp);
+  void asm_acmp_barrier(MacroAssembler* masm, Register op1, Register op2);
+
+  address generate_shenandoah_wb(StubCodeGenerator* cgen);
+
+public:
+  static address shenandoah_wb();
+
+#ifdef COMPILER1
+  void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
+  void gen_write_barrier_stub(LIR_Assembler* ce, ShenandoahWriteBarrierStub* stub);
+  void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
+#endif
+
+  virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
+                                  Register addr, Register count, RegSet saved_regs);
+  virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
+                                  Register start, Register end, Register tmp, RegSet saved_regs);
+  virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
+                       Register dst, Address src, Register tmp1, Register tmp_thread);
+  virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
+                        Address dst, Register val, Register tmp1, Register tmp2);
+  virtual void obj_equals(MacroAssembler* masm, Register src1, Register src2);
+  virtual void resolve(MacroAssembler* masm, DecoratorSet decorators, Register obj);
+  virtual void tlab_allocate(MacroAssembler* masm, Register obj,
+                             Register var_size_in_bytes,
+                             int con_size_in_bytes,
+                             Register t1,
+                             Register t2,
+                             Label& slow_case);
+
+  void cmpxchg_oop(MacroAssembler* masm, Register addr, Register expected, Register new_val,
+                   bool acquire, bool release, bool weak, bool encode,
+                   Register tmp1, Register tmp2, Register tmp3 = rscratch2,
+                   Register result = noreg);
+
+  virtual void barrier_stubs_init();
+};
+
+#endif // CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP