gcc/fortran/trans-types.h

   1 /* Header for Fortran 95 types backend support.
   2    Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
   3    Contributed by Paul Brook <paul@nowt.org>
   4    and Steven Bosscher <s.bosscher@student.tudelft.nl>
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 2, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING.  If not, write to the Free
  20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  21 02111-1307, USA.  */
  22
  23
  24 #ifndef GFC_BACKEND_H
  25 #define GFC_BACKEND_H
  26
  27 #define GFC_DTYPE_RANK_MASK 0x07
  28 #define GFC_DTYPE_TYPE_SHIFT 3
  29 #define GFC_DTYPE_TYPE_MASK 0x38
  30 #define GFC_DTYPE_SIZE_SHIFT 6
  31
  32 enum
  33 {
  34   GFC_DTYPE_UNKNOWN = 0,
  35   GFC_DTYPE_INTEGER,
  36   GFC_DTYPE_LOGICAL,
  37   GFC_DTYPE_REAL,
  38   GFC_DTYPE_COMPLEX,
  39   GFC_DTYPE_DERIVED,
  40   GFC_DTYPE_CHARACTER
  41 };
  42
  43 extern GTY(()) tree gfc_array_index_type;
  44 extern GTY(()) tree gfc_character1_type_node;
  45 extern GTY(()) tree ppvoid_type_node;
  46 extern GTY(()) tree pvoid_type_node;
  47 extern GTY(()) tree pchar_type_node;
  48 /* This is the type used to hold the lengths of character variables.
  49    It must be the same as the corresponding definition in gfortran.h.  */
  50 /* TODO: This is still hardcoded as kind=4 in some bits of the compiler
  51    and runtime library.  */
  52 extern GTY(()) tree gfc_charlen_type_node;
  53
  54 /* be-function.c */
  55 void gfc_convert_function_code (gfc_namespace *);
  56
  57 /* trans-types.c */
  58 void gfc_init_kinds (void);
  59 void gfc_init_types (void);
  60
  61 tree gfc_get_int_type (int);
  62 tree gfc_get_real_type (int);
  63 tree gfc_get_complex_type (int);
  64 tree gfc_get_logical_type (int);
  65 tree gfc_get_character_type (int, gfc_charlen *);
  66 tree gfc_get_character_type_len (int, tree);
  67
  68 tree gfc_sym_type (gfc_symbol *);
  69 tree gfc_typenode_for_spec (gfc_typespec *);
  70
  71 tree gfc_get_function_type (gfc_symbol *);
  72
  73 tree gfc_type_for_size (unsigned, int);
  74 tree gfc_type_for_mode (enum machine_mode, int);
  75 tree gfc_unsigned_type (tree);
  76 tree gfc_signed_type (tree);
  77 tree gfc_signed_or_unsigned_type (int, tree);
  78
  79 tree gfc_get_element_type (tree);
  80 tree gfc_get_array_type_bounds (tree, int, tree *, tree *, int);
  81 tree gfc_get_nodesc_array_type (tree, gfc_array_spec *, int);
  82
  83 /* Add a field of given name and type to a UNION_TYPE or RECORD_TYPE.  */
  84 tree gfc_add_field_to_struct (tree *, tree, tree, tree);
  85
  86 /* Layout and output debugging info for a type.  */
  87 void gfc_finish_type (tree);
  88
  89 /* Some functions have an extra parameter for the return value.  */
  90 int gfc_return_by_reference (gfc_symbol *);
  91
  92 /* Returns true if the array sym does not require a descriptor.  */
  93 int gfc_is_nodesc_array (gfc_symbol *);
  94
  95 /* Return the DTYPE for an array.  */
  96 tree gfc_get_dtype (tree);
  97
  98 #endif