/*

 * 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

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 */

#ifndef CPU_AARCH64_GC_SHARED_BARRIERSETASSEMBLER_AARCH64_HPP

#define CPU_AARCH64_GC_SHARED_BARRIERSETASSEMBLER_AARCH64_HPP

#include "asm/macroAssembler.hpp"

#include "memory/allocation.hpp"

#include "oops/access.hpp"

class BarrierSetAssembler: public CHeapObj<mtGC> {

private:

  void incr_allocated_bytes(MacroAssembler* masm,

                            Register var_size_in_bytes, int con_size_in_bytes,

                            Register t1 = noreg);

public:

  virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,

  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 obj1, Register obj2);

  virtual void resolve(MacroAssembler* masm, DecoratorSet decorators, Register obj) {

    // Default implementation does not need to do anything.

  }

  virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,

                                             Register obj, Register tmp, Label& slowpath);

  virtual void tlab_allocate(MacroAssembler* masm,

    Register obj,                      // result: pointer to object after successful allocation

    Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise

    int      con_size_in_bytes,        // object size in bytes if   known at compile time

    Register t1,                       // temp register

    Register t2,                       // temp register

    Label&   slow_case                 // continuation point if fast allocation fails

  );

  void eden_allocate(MacroAssembler* masm,

    Register obj,                      // result: pointer to object after successful allocation

    Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise

    int      con_size_in_bytes,        // object size in bytes if   known at compile time

    Register t1,                       // temp register

    Label&   slow_case                 // continuation point if fast allocation fails

  );

  virtual void barrier_stubs_init() {}

};

#endif // CPU_AARCH64_GC_SHARED_BARRIERSETASSEMBLER_AARCH64_HPP