Subversion Repositories openrisc_2011-10-31

// -*- C++ -*-

//

// Copyright (C) 2009 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the terms

// of the GNU General Public License as published by the Free Software

// Foundation; either version 2, or (at your option) any later

// version.

// This library 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 for more details.

// You should have received a copy of the GNU General Public License

// along with this library; see the file COPYING.  If not, write to

// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,

// MA 02111-1307, USA.

// As a special exception, you may use this file as part of a free

// software library without restriction.  Specifically, if other files

// instantiate templates or use macros or inline functions from this

// file, or you compile this file and link it with other files to

// produce an executable, this file does not by itself cause the

// resulting executable to be covered by the GNU General Public

// License.  This exception does not however invalidate any other

// reasons why the executable file might be covered by the GNU General

// Public License.

/** @file profile/impl/profiler_map_to_unordered_map.h

 *  @brief Diagnostics for map to unordered_map.

 */

// Written by Silvius Rus.

#ifndef _GLIBCXX_PROFILE_PROFILER_MAP_TO_UNORDERED_MAP_H

#define _GLIBCXX_PROFILE_PROFILER_MAP_TO_UNORDERED_MAP_H 1

#ifdef __GXX_EXPERIMENTAL_CXX0X__

#include <cstdlib>

#include <cstdio>

#include <cstring>

#else

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#endif

#include "profile/impl/profiler.h"

#include "profile/impl/profiler_node.h"

#include "profile/impl/profiler_trace.h"

namespace __gnu_profile

{

inline int __log2(size_t __size)

{

  for (int __bit_count = sizeof(size_t) - 1; __bit_count >= 0; -- __bit_count)

  {

    if ((2 << __bit_count) & __size) {

      return __bit_count;

    }

  }

  return 0;

}

inline float __map_insert_cost(size_t __size)

{

  return (_GLIBCXX_PROFILE_DATA(__map_insert_cost_factor).__value

          * static_cast<float>(__log2(__size)));

}

inline float __map_erase_cost(size_t __size)

{

  return (_GLIBCXX_PROFILE_DATA(__map_erase_cost_factor).__value

          * static_cast<float>(__log2(__size)));

}

inline float __map_find_cost(size_t __size)

{

  return (_GLIBCXX_PROFILE_DATA(__map_find_cost_factor).__value

          * static_cast<float>(__log2(__size)));

}

/** @brief A map-to-unordered_map instrumentation line in the object table.  */

class __map2umap_info: public __object_info_base

{

 public:

  __map2umap_info()

      : _M_insert(0), _M_erase(0), _M_find(0), _M_iterate(0),

        _M_map_cost(0.0), _M_umap_cost(0.0), _M_valid(true) {}

  __map2umap_info(__stack_t __stack)

      : __object_info_base(__stack), _M_insert(0), _M_erase(0), _M_find(0),

        _M_iterate(0), _M_map_cost(0.0), _M_umap_cost(0.0), _M_valid(true) {}

  virtual ~__map2umap_info() {}

  __map2umap_info(const __map2umap_info& o);

  void __merge(const __map2umap_info& o);

  void __write(FILE* __f) const;

  float __magnitude() const { return _M_map_cost - _M_umap_cost; }

  const char* __advice() const;

  void __record_insert(size_t __size, size_t __count);

  void __record_erase(size_t __size, size_t __count);

  void __record_find(size_t __size);

  void __record_iterate(size_t __count);

  void __record_invalidate();

 private:

  size_t _M_insert;

  size_t _M_erase;

  size_t _M_find;

  size_t _M_iterate;

  float _M_umap_cost;

  float _M_map_cost;

  bool  _M_valid;

};

inline const char* __map2umap_info::__advice() const

{

  return strdup("change std::map to std::unordered_map");

}

inline __map2umap_info::__map2umap_info(const __map2umap_info& __o)

    : __object_info_base(__o),

      _M_insert(__o._M_insert),

      _M_erase(__o._M_erase),

      _M_find(__o._M_find),

      _M_iterate(__o._M_iterate),

      _M_map_cost(__o._M_map_cost),

      _M_umap_cost(__o._M_umap_cost),

      _M_valid(__o._M_valid)

{}

inline void __map2umap_info::__merge(const __map2umap_info& __o)

{

  _M_insert    += __o._M_insert;

  _M_erase     += __o._M_erase;

  _M_find      += __o._M_find;

  _M_map_cost  += __o._M_map_cost;

  _M_umap_cost += __o._M_umap_cost;

  _M_valid     &= __o._M_valid;

}

inline void __map2umap_info:: __record_insert(size_t __size, size_t __count)

{

  _M_insert += __count;

  _M_map_cost += __count * __map_insert_cost(__size);

  _M_umap_cost += (__count

                   * _GLIBCXX_PROFILE_DATA(__umap_insert_cost_factor).__value);

}

inline void __map2umap_info:: __record_erase(size_t __size, size_t __count)

{

  _M_erase += __count;

  _M_map_cost += __count * __map_erase_cost(__size);

  _M_umap_cost += (__count

                   * _GLIBCXX_PROFILE_DATA(__umap_erase_cost_factor).__value);

}

inline void __map2umap_info:: __record_find(size_t __size)

{

  _M_find += 1;

  _M_map_cost += __map_find_cost(__size);

  _M_umap_cost += _GLIBCXX_PROFILE_DATA(__umap_find_cost_factor).__value;

}

inline void __map2umap_info:: __record_iterate(size_t __count)

{

  _M_iterate += __count;

  _M_map_cost += (__count

                  * _GLIBCXX_PROFILE_DATA(__map_iterate_cost_factor).__value);

  _M_umap_cost += (

      __count * _GLIBCXX_PROFILE_DATA(__umap_iterate_cost_factor).__value);

}

inline void __map2umap_info:: __record_invalidate()

{

  _M_valid = false;

}

inline void __map2umap_info::__write(FILE* __f) const

{

  fprintf(__f, "%Zu %Zu %Zu %Zu %.0f %.0f %s\n",

          _M_insert, _M_erase, _M_find, _M_iterate, _M_map_cost, _M_umap_cost,

          _M_valid ? "valid" : "invalid");

}

/** @brief A map-to-unordered_map instrumentation line in the stack table.  */

class __map2umap_stack_info: public __map2umap_info

{

 public:

  __map2umap_stack_info(const __map2umap_info& o) : __map2umap_info(o) {}

};

/** @brief Map-to-unordered_map instrumentation producer.  */

class __trace_map2umap

    : public __trace_base<__map2umap_info, __map2umap_stack_info>

{

 public:

  __trace_map2umap();

};

inline __trace_map2umap::__trace_map2umap()

    : __trace_base<__map2umap_info, __map2umap_stack_info>()

{

  __id = "map-to-unordered-map";

}

inline void __trace_map_to_unordered_map_init()

{

  _GLIBCXX_PROFILE_DATA(_S_map2umap) = new __trace_map2umap();

}

inline void __trace_map_to_unordered_map_report(

    FILE* __f, __warning_vector_t& __warnings)

{

  if (_GLIBCXX_PROFILE_DATA(_S_map2umap)) {

    _GLIBCXX_PROFILE_DATA(_S_map2umap)->__collect_warnings(__warnings);

    _GLIBCXX_PROFILE_DATA(_S_map2umap)->__write(__f);

  }

}

inline void __trace_map_to_unordered_map_construct(const void* __obj)

{

  if (!__profcxx_init()) return;

  _GLIBCXX_PROFILE_DATA(_S_map2umap)->__add_object(

      __obj, __map2umap_info(__get_stack()));

}

inline void __trace_map_to_unordered_map_destruct(const void* __obj)

{

  if (!__profcxx_init()) return;

  _GLIBCXX_PROFILE_DATA(_S_map2umap)->__retire_object(__obj);

}

inline void __trace_map_to_unordered_map_insert(const void* __obj,

                                                size_t __size, size_t __count)

{

  if (!__profcxx_init()) return;

  __map2umap_info* __info =

      _GLIBCXX_PROFILE_DATA(_S_map2umap)->__get_object_info(__obj);

  if (__info) __info->__record_insert(__size, __count);

}

inline void __trace_map_to_unordered_map_erase(const void* __obj,

                                               size_t __size, size_t __count)

{

  if (!__profcxx_init()) return;

  __map2umap_info* __info =

      _GLIBCXX_PROFILE_DATA(_S_map2umap)->__get_object_info(__obj);

  if (__info) __info->__record_erase(__size, __count);

}

inline void __trace_map_to_unordered_map_find(const void* __obj, size_t __size)

{

  if (!__profcxx_init()) return;

  __map2umap_info* __info =

      _GLIBCXX_PROFILE_DATA(_S_map2umap)->__get_object_info(__obj);

  if (__info) __info->__record_find(__size);

}

inline void __trace_map_to_unordered_map_iterate(const void* __obj,

                                                 size_t __count)

{

  if (!__profcxx_init()) return;

  __map2umap_info* __info =

      _GLIBCXX_PROFILE_DATA(_S_map2umap)->__get_object_info(__obj);

  if (__info) __info->__record_iterate(__count);

}

inline void __trace_map_to_unordered_map_invalidate(const void* __obj)

{

  if (!__profcxx_init()) return;

  __map2umap_info* __info =

      _GLIBCXX_PROFILE_DATA(_S_map2umap)->__get_object_info(__obj);

  if (__info) __info->__record_invalidate();

}

} // namespace __gnu_profile

#endif /* _GLIBCXX_PROFILE_PROFILER_MAP_TO_UNORDERED_MAP_H */