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1 /* Header for Fortran 95 types backend support.
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2 Copyright (C) 2002-2017 Free Software Foundation, Inc.
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3 Contributed by Paul Brook <paul@nowt.org>
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4 and Steven Bosscher <s.bosscher@student.tudelft.nl>
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify it under
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9 the terms of the GNU General Public License as published by the Free
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10 Software Foundation; either version 3, or (at your option) any later
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11 version.
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12
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13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22
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23 #ifndef GFC_BACKEND_H
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24 #define GFC_BACKEND_H
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25
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26 extern GTY(()) tree gfc_array_index_type;
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27 extern GTY(()) tree gfc_array_range_type;
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28 extern GTY(()) tree gfc_character1_type_node;
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29 extern GTY(()) tree ppvoid_type_node;
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30 extern GTY(()) tree pvoid_type_node;
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31 extern GTY(()) tree prvoid_type_node;
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32 extern GTY(()) tree pchar_type_node;
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33 extern GTY(()) tree gfc_float128_type_node;
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34 extern GTY(()) tree gfc_complex_float128_type_node;
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35
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36 /* This is the type used to hold the lengths of character variables.
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37 It must be the same as the corresponding definition in gfortran.h. */
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38 /* TODO: This is still hardcoded as kind=4 in some bits of the compiler
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39 and runtime library. */
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40 extern GTY(()) tree gfc_charlen_type_node;
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41
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42 /* The following flags give us information on the correspondence of
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43 real (and complex) kinds with C floating-point types long double
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44 and __float128. */
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45 extern bool gfc_real16_is_float128;
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46
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47 enum gfc_packed {
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48 PACKED_NO = 0,
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49 PACKED_PARTIAL,
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50 PACKED_FULL,
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51 PACKED_STATIC
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52 };
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53
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54 /* be-function.c */
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55 void gfc_convert_function_code (gfc_namespace *);
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56
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57 /* trans-types.c */
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58 void gfc_init_kinds (void);
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59 void gfc_init_types (void);
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60 void gfc_init_c_interop_kinds (void);
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61
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62 tree gfc_get_int_type (int);
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63 tree gfc_get_real_type (int);
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64 tree gfc_get_complex_type (int);
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65 tree gfc_get_logical_type (int);
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66 tree gfc_get_char_type (int);
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67 tree gfc_get_pchar_type (int);
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68 tree gfc_get_character_type (int, gfc_charlen *);
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69 tree gfc_get_character_type_len (int, tree);
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70 tree gfc_get_character_type_len_for_eltype (tree, tree);
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71
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72 tree gfc_sym_type (gfc_symbol *);
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73 tree gfc_typenode_for_spec (gfc_typespec *, int c = 0);
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74 int gfc_copy_dt_decls_ifequal (gfc_symbol *, gfc_symbol *, bool);
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75
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76 tree gfc_get_function_type (gfc_symbol *);
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77
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78 tree gfc_type_for_size (unsigned, int);
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79 tree gfc_type_for_mode (machine_mode, int);
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80 tree gfc_build_uint_type (int);
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81
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82 tree gfc_get_element_type (tree);
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83 tree gfc_get_array_type_bounds (tree, int, int, tree *, tree *, int,
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84 enum gfc_array_kind, bool);
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85 tree gfc_get_nodesc_array_type (tree, gfc_array_spec *, gfc_packed, bool);
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86
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87 /* Add a field of given name and type to a UNION_TYPE or RECORD_TYPE. */
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88 tree gfc_add_field_to_struct (tree, tree, tree, tree **);
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89
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90 /* Layout and output debugging info for a type. */
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91 void gfc_finish_type (tree);
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92
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93 /* Some functions have an extra parameter for the return value. */
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94 int gfc_return_by_reference (gfc_symbol *);
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95
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96 /* Returns true if the array sym does not require a descriptor. */
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97 int gfc_is_nodesc_array (gfc_symbol *);
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98
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99 /* Return the DTYPE for an array. */
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100 tree gfc_get_dtype_rank_type (int, tree);
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101 tree gfc_get_dtype (tree);
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102
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103 tree gfc_get_ppc_type (gfc_component *);
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104 tree gfc_get_caf_vector_type (int dim);
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105 tree gfc_get_caf_reference_type ();
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106
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107 #endif
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