1 /* Header for Fortran 95 types backend support.
2 Copyright (C) 2002-2019 Free Software Foundation, Inc.
3 Contributed by Paul Brook <paul@nowt.org>
4 and Steven Bosscher <s.bosscher@student.tudelft.nl>
6 This file is part of GCC.
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 3, or (at your option) any later
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
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
27 extern GTY(()) tree gfc_array_index_type
;
28 extern GTY(()) tree gfc_array_range_type
;
29 extern GTY(()) tree gfc_character1_type_node
;
30 extern GTY(()) tree ppvoid_type_node
;
31 extern GTY(()) tree pvoid_type_node
;
32 extern GTY(()) tree prvoid_type_node
;
33 extern GTY(()) tree pchar_type_node
;
34 extern GTY(()) tree gfc_float128_type_node
;
35 extern GTY(()) tree gfc_complex_float128_type_node
;
37 /* logical_type_node is the Fortran LOGICAL type of default kind. In
38 addition to uses mandated by the Fortran standard, also prefer it
39 for compiler generated temporary variables, is it avoids some minor
40 issues with boolean_type_node (the C/C++ _Bool/bool). Namely:
41 - On x86, partial register stalls with 8/16 bit register access,
42 and length prefix changes.
43 - On s390 there is a compare with immediate and jump instruction,
44 but it works only with 32-bit quantities and not 8-bit such as
47 extern GTY(()) tree logical_type_node
;
48 extern GTY(()) tree logical_true_node
;
49 extern GTY(()) tree logical_false_node
;
51 /* This is the type used to hold the lengths of character variables.
52 It must be the same as the corresponding definition in gfortran.h. */
53 extern GTY(()) tree gfc_charlen_type_node
;
56 /* The following flags give us information on the correspondence of
57 real (and complex) kinds with C floating-point types long double
59 extern bool gfc_real16_is_float128
;
69 void gfc_convert_function_code (gfc_namespace
*);
72 void gfc_init_kinds (void);
73 void gfc_init_types (void);
74 void gfc_init_c_interop_kinds (void);
76 tree
get_dtype_type_node (void);
77 tree
gfc_get_int_type (int);
78 tree
gfc_get_real_type (int);
79 tree
gfc_get_complex_type (int);
80 tree
gfc_get_logical_type (int);
81 tree
gfc_get_char_type (int);
82 tree
gfc_get_pchar_type (int);
83 tree
gfc_get_character_type (int, gfc_charlen
*);
84 tree
gfc_get_character_type_len (int, tree
);
85 tree
gfc_get_character_type_len_for_eltype (tree
, tree
);
87 tree
gfc_sym_type (gfc_symbol
*);
88 tree
gfc_typenode_for_spec (gfc_typespec
*, int c
= 0);
89 int gfc_copy_dt_decls_ifequal (gfc_symbol
*, gfc_symbol
*, bool);
91 tree
gfc_get_function_type (gfc_symbol
*, gfc_actual_arglist
*args
= NULL
);
93 tree
gfc_type_for_size (unsigned, int);
94 tree
gfc_type_for_mode (machine_mode
, int);
95 tree
gfc_build_uint_type (int);
97 tree
gfc_get_element_type (tree
);
98 tree
gfc_get_array_type_bounds (tree
, int, int, tree
*, tree
*, int,
99 enum gfc_array_kind
, bool);
100 tree
gfc_get_nodesc_array_type (tree
, gfc_array_spec
*, gfc_packed
, bool);
102 /* Add a field of given name and type to a UNION_TYPE or RECORD_TYPE. */
103 tree
gfc_add_field_to_struct (tree
, tree
, tree
, tree
**);
105 /* Layout and output debugging info for a type. */
106 void gfc_finish_type (tree
);
108 /* Some functions have an extra parameter for the return value. */
109 int gfc_return_by_reference (gfc_symbol
*);
111 /* Returns true if the array sym does not require a descriptor. */
112 int gfc_is_nodesc_array (gfc_symbol
*);
114 /* Return the DTYPE for an array. */
115 tree
gfc_get_dtype_rank_type (int, tree
);
116 tree
gfc_get_dtype (tree
);
118 tree
gfc_get_ppc_type (gfc_component
*);
119 tree
gfc_get_caf_vector_type (int dim
);
120 tree
gfc_get_caf_reference_type ();