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/* Header for Fortran 95 types backend support.

   Copyright (C) 2002, 2003, 2004, 2005, 2007, 2008

   Free Software Foundation, Inc.

   Contributed by Paul Brook <paul@nowt.org>

   and Steven Bosscher <s.bosscher@student.tudelft.nl>

This file is part of GCC.

GCC 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 3, or (at your option) any later

version.

GCC 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 GCC; see the file COPYING3.  If not see

<http://www.gnu.org/licenses/>.  */

#ifndef GFC_BACKEND_H

#define GFC_BACKEND_H

extern GTY(()) tree gfc_array_index_type;

extern GTY(()) tree gfc_array_range_type;

extern GTY(()) tree gfc_character1_type_node;

extern GTY(()) tree ppvoid_type_node;

extern GTY(()) tree pvoid_type_node;

extern GTY(()) tree prvoid_type_node;

extern GTY(()) tree pchar_type_node;

/* This is the type used to hold the lengths of character variables.

   It must be the same as the corresponding definition in gfortran.h.  */

/* TODO: This is still hardcoded as kind=4 in some bits of the compiler

   and runtime library.  */

extern GTY(()) tree gfc_charlen_type_node;

typedef enum {

  PACKED_NO = 0,

  PACKED_PARTIAL,

  PACKED_FULL,

  PACKED_STATIC

} gfc_packed;

/* be-function.c */

void gfc_convert_function_code (gfc_namespace *);

/* trans-types.c */

void gfc_init_kinds (void);

void gfc_init_types (void);

tree gfc_get_int_type (int);

tree gfc_get_real_type (int);

tree gfc_get_complex_type (int);

tree gfc_get_logical_type (int);

tree gfc_get_char_type (int);

tree gfc_get_pchar_type (int);

tree gfc_get_character_type (int, gfc_charlen *);

tree gfc_get_character_type_len (int, tree);

tree gfc_get_character_type_len_for_eltype (tree, tree);

tree gfc_sym_type (gfc_symbol *);

tree gfc_typenode_for_spec (gfc_typespec *);

tree gfc_get_function_type (gfc_symbol *);

tree gfc_type_for_size (unsigned, int);

tree gfc_type_for_mode (enum machine_mode, int);

tree gfc_build_uint_type (int);

tree gfc_get_element_type (tree);

tree gfc_get_array_type_bounds (tree, int, tree *, tree *, int,

                                enum gfc_array_kind, bool);

tree gfc_get_nodesc_array_type (tree, gfc_array_spec *, gfc_packed, bool);

/* Add a field of given name and type to a UNION_TYPE or RECORD_TYPE.  */

tree gfc_add_field_to_struct (tree *, tree, tree, tree);

/* Layout and output debugging info for a type.  */

void gfc_finish_type (tree);

/* Some functions have an extra parameter for the return value.  */

int gfc_return_by_reference (gfc_symbol *);

/* Returns true if the array sym does not require a descriptor.  */

int gfc_is_nodesc_array (gfc_symbol *);

/* Return the DTYPE for an array.  */

tree gfc_get_dtype (tree);

tree gfc_get_ppc_type (gfc_component *);

#endif