/*

 * Copyright 1998-2005 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 *

 */

// native method calls

class SignatureHandlerGenerator: public NativeSignatureIterator {

 private:

  MacroAssembler* _masm;

#ifdef AMD64

#ifdef _WIN64

  unsigned int _num_args;

#else

  unsigned int _num_fp_args;

  unsigned int _num_int_args;

#endif // _WIN64

  int _stack_offset;

#else

  void move(int from_offset, int to_offset);

  void box(int from_offset, int to_offset);

#endif // AMD64

  void pass_int();

  void pass_long();

  void pass_float();

#ifdef AMD64

  void pass_double();

#endif // AMD64

  void pass_object();

 public:

  // Creation

  SignatureHandlerGenerator(methodHandle method, CodeBuffer* buffer) : NativeSignatureIterator(method) {

    _masm = new MacroAssembler(buffer);

#ifdef AMD64

#ifdef _WIN64

    _num_args = (method->is_static() ? 1 : 0);

    _stack_offset = (Argument::n_int_register_parameters_c+1)* wordSize; // don't overwrite return address

#else

    _num_int_args = (method->is_static() ? 1 : 0);

    _num_fp_args = 0;

    _stack_offset = wordSize; // don't overwrite return address

#endif // _WIN64

#endif // AMD64

  }

  // Code generation

  void generate(uint64_t fingerprint);

  // Code generation support

  static Register from();

  static Register to();

  static Register temp();

};