1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
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 2, 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 COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 #ifndef GCC_GFORTRAN_H
24 #define GCC_GFORTRAN_H
26 /* It's probably insane to have this large of a header file, but it
27 seemed like everything had to be recompiled anyway when a change
28 was made to a header file, and there were ordering issues with
29 multiple header files. Besides, Microsoft's winnt.h was 250k last
30 time I looked, so by comparison this is perfectly reasonable. */
34 #include "coretypes.h"
36 #include "splay-tree.h"
37 /* The following ifdefs are recommended by the autoconf documentation
38 for any code using alloca. */
40 /* AIX requires this to be the first thing in the file. */
42 #else /* not __GNUC__ */
45 #else /* do not HAVE_ALLOCA_H */
49 #ifndef alloca /* predefined by HP cc +Olibcalls */
51 #endif /* not predefined */
53 #endif /* do not HAVE_ALLOCA_H */
54 #endif /* not __GNUC__ */
56 /* Major control parameters. */
58 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
59 #define GFC_MAX_DIMENSIONS 7 /* Maximum dimensions in an array. */
60 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
62 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
65 #define free(x) Use_gfc_free_instead_of_free()
66 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
69 #define NULL ((void *) 0)
73 #define stringize(x) expand_macro(x)
74 #define expand_macro(x) # x
76 /* For a the runtime library, a standard prefix is a requirement to
77 avoid cluttering the namespace with things nobody asked for. It's
78 ugly to look at and a pain to type when you add the prefix by hand,
79 so we hide it behind a macro. */
80 #define PREFIX(x) "_gfortran_" x
83 #define BLANK_COMMON_NAME "__BLNK__"
85 /* Macro to initialize an mstring structure. */
86 #define minit(s, t) { s, NULL, t }
88 /* Structure for storing strings to be matched by gfc_match_string. */
98 /* Flags to specify which standard/extension contains a feature. */
99 #define GFC_STD_LEGACY (1<<6) /* Backward compatibility. */
100 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */
101 #define GFC_STD_F2003 (1<<4) /* New in F2003. */
102 /* Note that no additional features were deleted or made obsolescent
104 #define GFC_STD_F95 (1<<3) /* New in F95. */
105 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
106 #define GFC_STD_F95_OBS (1<<1) /* Obsolescent in F95. */
107 #define GFC_STD_F77 (1<<0) /* Included in F77, but not
108 deleted or obsolescent in
111 /* Bitmasks for the various FPE that can be enabled. */
112 #define GFC_FPE_INVALID (1<<0)
113 #define GFC_FPE_DENORMAL (1<<1)
114 #define GFC_FPE_ZERO (1<<2)
115 #define GFC_FPE_OVERFLOW (1<<3)
116 #define GFC_FPE_UNDERFLOW (1<<4)
117 #define GFC_FPE_PRECISION (1<<5)
119 /* Keep this in sync with libgfortran/io/io.h ! */
122 { CONVERT_NATIVE=0, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
126 /*************************** Enums *****************************/
128 /* The author remains confused to this day about the convention of
129 returning '0' for 'SUCCESS'... or was it the other way around? The
130 following enum makes things much more readable. We also start
131 values off at one instead of zero. */
134 { SUCCESS = 1, FAILURE }
137 /* This is returned by gfc_notification_std to know if, given the flags
138 that were given (-std=, -pedantic) we should issue an error, a warning
142 { SILENT, WARNING, ERROR }
145 /* Matchers return one of these three values. The difference between
146 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
147 successful, but that something non-syntactic is wrong and an error
148 has already been issued. */
151 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
155 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
159 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
160 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH
164 /* Expression node types. */
166 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
167 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
173 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
174 AS_ASSUMED_SIZE, AS_UNKNOWN
179 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
182 /* Statement label types. */
184 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
185 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
189 /* Intrinsic operators. */
191 { GFC_INTRINSIC_BEGIN = 0,
192 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
193 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
194 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
195 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
196 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
197 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
198 INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES,
199 GFC_INTRINSIC_END /* Sentinel */
204 /* Strings for all intrinsic operators. */
205 extern mstring intrinsic_operators[];
208 /* This macro is the number of intrinsic operators that exist.
209 Assumptions are made about the numbering of the interface_op enums. */
210 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
212 /* Arithmetic results. */
214 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
215 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
222 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
223 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
224 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
225 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
226 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
227 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
228 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
229 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
230 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
231 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
232 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
233 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
234 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
235 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
236 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
237 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
238 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
239 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
240 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
241 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
242 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
243 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
244 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE,
250 /* Types of interfaces that we can have. Assignment interfaces are
251 considered to be intrinsic operators. */
254 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
255 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
259 /* Symbol flavors: these are all mutually exclusive.
260 10 elements = 4 bits. */
261 typedef enum sym_flavor
263 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
264 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST
268 /* Procedure types. 7 elements = 3 bits. */
269 typedef enum procedure_type
270 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
271 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
276 typedef enum sym_intent
277 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
282 typedef enum gfc_access
283 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
287 /* Flags to keep track of where an interface came from.
288 4 elements = 2 bits. */
290 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
294 /* Strings for all symbol attributes. We use these for dumping the
295 parse tree, in error messages, and also when reading and writing
296 modules. In symbol.c. */
297 extern const mstring flavors[];
298 extern const mstring procedures[];
299 extern const mstring intents[];
300 extern const mstring access_types[];
301 extern const mstring ifsrc_types[];
303 /* Enumeration of all the generic intrinsic functions. Used by the
304 backend for identification of a function. */
306 enum gfc_generic_isym_id
308 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
309 the backend (eg. KIND). */
343 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
353 GFC_ISYM_DOT_PRODUCT,
441 GFC_ISYM_SET_EXPONENT,
473 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
475 /************************* Structures *****************************/
477 /* Used for keeping things in balanced binary trees. */
478 #define BBT_HEADER(self) int priority; struct self *left, *right
480 /* Symbol attribute structure. */
483 /* Variable attributes. */
484 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
485 optional:1, pointer:1, save:1, target:1, value:1, volatile_:1,
486 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
489 unsigned data:1, /* Symbol is named in a DATA statement. */
490 protected:1, /* Symbol has been marked as protected. */
491 use_assoc:1, /* Symbol has been use-associated. */
492 use_only:1; /* Symbol has been use-associated, with ONLY. */
494 unsigned in_namelist:1, in_common:1, in_equivalence:1;
495 unsigned function:1, subroutine:1, generic:1, generic_copy:1;
496 unsigned implicit_type:1; /* Type defined via implicit rules. */
497 unsigned untyped:1; /* No implicit type could be found. */
499 /* Function/subroutine attributes */
500 unsigned sequence:1, elemental:1, pure:1, recursive:1;
501 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1;
503 /* This is set if the subroutine doesn't return. Currently, this
504 is only possible for intrinsic subroutines. */
507 /* Set if this procedure is an alternate entry point. These procedures
508 don't have any code associated, and the backend will turn them into
509 thunks to the master function. */
512 /* Set if this is the master function for a procedure with multiple
514 unsigned entry_master:1;
516 /* Set if this is the master function for a function with multiple
517 entry points where characteristics of the entry points differ. */
518 unsigned mixed_entry_master:1;
520 /* Set if a function must always be referenced by an explicit interface. */
521 unsigned always_explicit:1;
523 /* Set if the symbol has been referenced in an expression. No further
524 modification of type or type parameters is permitted. */
525 unsigned referenced:1;
527 /* Set if the symbol has ambiguous interfaces. */
528 unsigned ambiguous_interfaces:1;
530 /* Set if the is the symbol for the main program. This is the least
531 cumbersome way to communicate this function property without
532 strcmp'ing with __MAIN everywhere. */
533 unsigned is_main_program:1;
535 /* Mutually exclusive multibit attributes. */
536 ENUM_BITFIELD (gfc_access) access:2;
537 ENUM_BITFIELD (sym_intent) intent:2;
538 ENUM_BITFIELD (sym_flavor) flavor:4;
539 ENUM_BITFIELD (ifsrc) if_source:2;
541 ENUM_BITFIELD (procedure_type) proc:3;
543 /* Special attributes for Cray pointers, pointees. */
544 unsigned cray_pointer:1, cray_pointee:1;
546 /* The symbol is a derived type with allocatable components, possibly nested.
548 unsigned alloc_comp:1;
550 /* The namespace where the VOLATILE attribute has been set. */
551 struct gfc_namespace *volatile_ns;
556 /* The following three structures are used to identify a location in
559 gfc_file is used to maintain a tree of the source files and how
560 they include each other
562 gfc_linebuf holds a single line of source code and information
563 which file it resides in
565 locus point to the sourceline and the character in the source
569 typedef struct gfc_file
571 struct gfc_file *included_by, *next, *up;
572 int inclusion_line, line;
576 typedef struct gfc_linebuf
578 #ifdef USE_MAPPED_LOCATION
579 source_location location;
583 struct gfc_file *file;
584 struct gfc_linebuf *next;
591 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
599 /* In order for the "gfc" format checking to work correctly, you must
600 have declared a typedef locus first. */
601 #if GCC_VERSION >= 4001
602 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
604 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
608 extern int gfc_suppress_error;
611 /* Character length structures hold the expression that gives the
612 length of a character variable. We avoid putting these into
613 gfc_typespec because doing so prevents us from doing structure
614 copies and forces us to deallocate any typespecs we create, as well
615 as structures that contain typespecs. They also can have multiple
616 character typespecs pointing to them.
618 These structures form a singly linked list within the current
619 namespace and are deallocated with the namespace. It is possible to
620 end up with gfc_charlen structures that have nothing pointing to them. */
622 typedef struct gfc_charlen
624 struct gfc_expr *length;
625 struct gfc_charlen *next;
632 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
634 /* Type specification structure. FIXME: derived and cl could be union??? */
639 struct gfc_symbol *derived;
640 gfc_charlen *cl; /* For character types only. */
644 /* Array specification. */
647 int rank; /* A rank of zero means that a variable is a scalar. */
649 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
651 /* These two fields are used with the Cray Pointer extension. */
652 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
653 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
654 AS_EXPLICIT, but we want to remember that we
660 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
663 /* Components of derived types. */
664 typedef struct gfc_component
669 int pointer, allocatable, dimension;
674 struct gfc_expr *initializer;
675 struct gfc_component *next;
679 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
681 /* Formal argument lists are lists of symbols. */
682 typedef struct gfc_formal_arglist
684 /* Symbol representing the argument at this position in the arglist. */
685 struct gfc_symbol *sym;
686 /* Points to the next formal argument. */
687 struct gfc_formal_arglist *next;
691 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
694 /* The gfc_actual_arglist structure is for actual arguments. */
695 typedef struct gfc_actual_arglist
698 /* Alternate return label when the expr member is null. */
699 struct gfc_st_label *label;
701 /* This is set to the type of an eventual omitted optional
702 argument. This is used to determine if a hidden string length
703 argument has to be added to a function call. */
706 struct gfc_expr *expr;
707 struct gfc_actual_arglist *next;
711 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
714 /* Because a symbol can belong to multiple namelists, they must be
715 linked externally to the symbol itself. */
716 typedef struct gfc_namelist
718 struct gfc_symbol *sym;
719 struct gfc_namelist *next;
723 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
728 OMP_LIST_FIRSTPRIVATE,
729 OMP_LIST_LASTPRIVATE,
730 OMP_LIST_COPYPRIVATE,
734 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
746 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
750 /* Because a symbol can belong to multiple namelists, they must be
751 linked externally to the symbol itself. */
752 typedef struct gfc_omp_clauses
754 struct gfc_expr *if_expr;
755 struct gfc_expr *num_threads;
756 gfc_namelist *lists[OMP_LIST_NUM];
765 struct gfc_expr *chunk_size;
773 bool nowait, ordered;
777 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
780 /* The gfc_st_label structure is a doubly linked list attached to a
781 namespace that records the usage of statement labels within that
783 /* TODO: Make format/statement specifics a union. */
784 typedef struct gfc_st_label
786 BBT_HEADER(gfc_st_label);
790 gfc_sl_type defined, referenced;
792 struct gfc_expr *format;
801 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
802 typedef struct gfc_interface
804 struct gfc_symbol *sym;
806 struct gfc_interface *next;
810 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
813 /* User operator nodes. These are like stripped down symbols. */
818 gfc_interface *operator;
819 struct gfc_namespace *ns;
824 /* Symbol nodes. These are important things. They are what the
825 standard refers to as "entities". The possibly multiple names that
826 refer to the same entity are accomplished by a binary tree of
827 symtree structures that is balanced by the red-black method-- more
828 than one symtree node can point to any given symbol. */
830 typedef struct gfc_symbol
832 const char *name; /* Primary name, before renaming */
833 const char *module; /* Module this symbol came from */
837 symbol_attribute attr;
839 /* The interface member points to the formal argument list if the
840 symbol is a function or subroutine name. If the symbol is a
841 generic name, the generic member points to the list of
844 gfc_interface *generic;
845 gfc_access component_access;
847 gfc_formal_arglist *formal;
848 struct gfc_namespace *formal_ns;
850 struct gfc_expr *value; /* Parameter/Initializer value */
852 struct gfc_symbol *result; /* function result symbol */
853 gfc_component *components; /* Derived type components */
855 /* Defined only for Cray pointees; points to their pointer. */
856 struct gfc_symbol *cp_pointer;
858 struct gfc_symbol *common_next; /* Links for COMMON syms */
860 /* This is in fact a gfc_common_head but it is only used for pointer
861 comparisons to check if symbols are in the same common block. */
862 struct gfc_common_head* common_head;
864 /* Make sure setup code for dummy arguments is generated in the correct
870 gfc_namelist *namelist, *namelist_tail;
872 /* Change management fields. Symbols that might be modified by the
873 current statement have the mark member nonzero and are kept in a
874 singly linked list through the tlink field. Of these symbols,
875 symbols with old_symbol equal to NULL are symbols created within
876 the current statement. Otherwise, old_symbol points to a copy of
879 struct gfc_symbol *old_symbol, *tlink;
880 unsigned mark:1, new:1;
881 /* Nonzero if all equivalences associated with this symbol have been
883 unsigned equiv_built:1;
884 /* Set if this variable is used as an index name in a FORALL. */
885 unsigned forall_index:1;
887 struct gfc_namespace *ns; /* namespace containing this symbol */
894 /* This structure is used to keep track of symbols in common blocks. */
896 typedef struct gfc_common_head
899 char use_assoc, saved, threadprivate;
900 char name[GFC_MAX_SYMBOL_LEN + 1];
901 struct gfc_symbol *head;
905 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
908 /* A list of all the alternate entry points for a procedure. */
910 typedef struct gfc_entry_list
912 /* The symbol for this entry point. */
914 /* The zero-based id of this entry point. */
916 /* The LABEL_EXPR marking this entry point. */
918 /* The nest item in the list. */
919 struct gfc_entry_list *next;
923 #define gfc_get_entry_list() \
924 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
926 /* Within a namespace, symbols are pointed to by symtree nodes that
927 are linked together in a balanced binary tree. There can be
928 several symtrees pointing to the same symbol node via USE
931 typedef struct gfc_symtree
933 BBT_HEADER (gfc_symtree);
938 gfc_symbol *sym; /* Symbol associated with this node */
940 gfc_common_head *common;
947 /* A linked list of derived types in the namespace. */
948 typedef struct gfc_dt_list
950 struct gfc_symbol *derived;
951 struct gfc_dt_list *next;
955 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
957 /* A list of all derived types. */
958 extern gfc_dt_list *gfc_derived_types;
960 /* A namespace describes the contents of procedure, module or
962 /* ??? Anything else use these? */
964 typedef struct gfc_namespace
966 /* Tree containing all the symbols in this namespace. */
967 gfc_symtree *sym_root;
968 /* Tree containing all the user-defined operators in the namespace. */
969 gfc_symtree *uop_root;
970 /* Tree containing all the common blocks. */
971 gfc_symtree *common_root;
973 /* If set_flag[letter] is set, an implicit type has been set for letter. */
974 int set_flag[GFC_LETTERS];
975 /* Keeps track of the implicit types associated with the letters. */
976 gfc_typespec default_type[GFC_LETTERS];
978 /* If this is a namespace of a procedure, this points to the procedure. */
979 struct gfc_symbol *proc_name;
980 /* If this is the namespace of a unit which contains executable
981 code, this points to it. */
982 struct gfc_code *code;
984 /* Points to the equivalences set up in this namespace. */
985 struct gfc_equiv *equiv;
987 /* Points to the equivalence groups produced by trans_common. */
988 struct gfc_equiv_list *equiv_lists;
990 gfc_interface *operator[GFC_INTRINSIC_OPS];
992 /* Points to the parent namespace, i.e. the namespace of a module or
993 procedure in which the procedure belonging to this namespace is
994 contained. The parent namespace points to this namespace either
995 directly via CONTAINED, or indirectly via the chain built by
997 struct gfc_namespace *parent;
998 /* CONTAINED points to the first contained namespace. Sibling
999 namespaces are chained via SIBLING. */
1000 struct gfc_namespace *contained, *sibling;
1002 gfc_common_head blank_common;
1003 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1005 gfc_st_label *st_labels;
1006 /* This list holds information about all the data initializers in
1008 struct gfc_data *data;
1010 gfc_charlen *cl_list;
1012 int save_all, seen_save, seen_implicit_none;
1014 /* Normally we don't need to refcount namespaces. However when we read
1015 a module containing a function with multiple entry points, this
1016 will appear as several functions with the same formal namespace. */
1019 /* A list of all alternate entry points to this procedure (or NULL). */
1020 gfc_entry_list *entries;
1022 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1025 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1030 extern gfc_namespace *gfc_current_ns;
1032 /* Global symbols are symbols of global scope. Currently we only use
1033 this to detect collisions already when parsing.
1034 TODO: Extend to verify procedure calls. */
1036 typedef struct gfc_gsymbol
1038 BBT_HEADER(gfc_gsymbol);
1041 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1042 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1049 extern gfc_gsymbol *gfc_gsym_root;
1051 /* Information on interfaces being built. */
1054 interface_type type;
1058 gfc_intrinsic_op op;
1062 extern gfc_interface_info current_interface;
1065 /* Array reference. */
1066 typedef struct gfc_array_ref
1069 int dimen; /* # of components in the reference */
1073 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1074 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1075 *stride[GFC_MAX_DIMENSIONS];
1078 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1079 dimen_type[GFC_MAX_DIMENSIONS];
1081 struct gfc_expr *offset;
1085 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1088 /* Component reference nodes. A variable is stored as an expression
1089 node that points to the base symbol. After that, a singly linked
1090 list of component reference nodes gives the variable's complete
1091 resolution. The array_ref component may be present and comes
1092 before the component component. */
1095 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1098 typedef struct gfc_ref
1104 struct gfc_array_ref ar;
1108 gfc_component *component;
1115 struct gfc_expr *start, *end; /* Substring */
1116 gfc_charlen *length;
1123 struct gfc_ref *next;
1127 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1130 /* Structures representing intrinsic symbols and their arguments lists. */
1131 typedef struct gfc_intrinsic_arg
1133 char name[GFC_MAX_SYMBOL_LEN + 1];
1137 gfc_actual_arglist *actual;
1139 struct gfc_intrinsic_arg *next;
1145 /* Specifies the various kinds of check functions used to verify the
1146 argument lists of intrinsic functions. fX with X an integer refer
1147 to check functions of intrinsics with X arguments. f1m is used for
1148 the MAX and MIN intrinsics which can have an arbitrary number of
1149 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1150 these have special semantics. */
1155 try (*f1)(struct gfc_expr *);
1156 try (*f1m)(gfc_actual_arglist *);
1157 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1158 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1159 try (*f3ml)(gfc_actual_arglist *);
1160 try (*f3red)(gfc_actual_arglist *);
1161 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1163 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1164 struct gfc_expr *, struct gfc_expr *);
1168 /* Like gfc_check_f, these specify the type of the simplification
1169 function associated with an intrinsic. The fX are just like in
1170 gfc_check_f. cc is used for type conversion functions. */
1174 struct gfc_expr *(*f0)(void);
1175 struct gfc_expr *(*f1)(struct gfc_expr *);
1176 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1177 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1179 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1180 struct gfc_expr *, struct gfc_expr *);
1181 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1182 struct gfc_expr *, struct gfc_expr *,
1184 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1188 /* Again like gfc_check_f, these specify the type of the resolution
1189 function associated with an intrinsic. The fX are just like in
1190 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1195 void (*f0)(struct gfc_expr *);
1196 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1197 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1198 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1199 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1201 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1202 struct gfc_expr *, struct gfc_expr *);
1203 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1204 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1205 void (*s1)(struct gfc_code *);
1210 typedef struct gfc_intrinsic_sym
1212 const char *name, *lib_name;
1213 gfc_intrinsic_arg *formal;
1215 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1217 gfc_simplify_f simplify;
1219 gfc_resolve_f resolve;
1220 struct gfc_intrinsic_sym *specific_head, *next;
1221 gfc_generic_isym_id generic_id;
1227 /* Expression nodes. The expression node types deserve explanations,
1228 since the last couple can be easily misconstrued:
1230 EXPR_OP Operator node pointing to one or two other nodes
1231 EXPR_FUNCTION Function call, symbol points to function's name
1232 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1233 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1234 which expresses structure, array and substring refs.
1235 EXPR_NULL The NULL pointer value (which also has a basic type).
1236 EXPR_SUBSTRING A substring of a constant string
1237 EXPR_STRUCTURE A structure constructor
1238 EXPR_ARRAY An array constructor. */
1242 #define GFC_RND_MODE GMP_RNDN
1244 typedef struct gfc_expr
1248 gfc_typespec ts; /* These two refer to the overall expression */
1251 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1253 /* Nonnull for functions and structure constructors */
1254 gfc_symtree *symtree;
1260 /* True if it is converted from Hollerith constant. */
1261 unsigned int from_H : 1;
1262 /* True if the expression is a call to a function that returns an array,
1263 and if we have decided not to allocate temporary data for that array. */
1264 unsigned int inline_noncopying_intrinsic : 1;
1265 /* Used to quickly find a given constructor by it's offset. */
1266 splay_tree con_by_offset;
1283 gfc_intrinsic_op operator;
1285 struct gfc_expr *op1, *op2;
1291 gfc_actual_arglist *actual;
1292 const char *name; /* Points to the ultimate name of the function */
1293 gfc_intrinsic_sym *isym;
1305 struct gfc_constructor *constructor;
1313 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1315 /* Structures for information associated with different kinds of
1316 numbers. The first set of integer parameters define all there is
1317 to know about a particular kind. The rest of the elements are
1318 computed from the first elements. */
1322 /* Values really representable by the target. */
1323 mpz_t huge, pedantic_min_int, min_int;
1325 int kind, radix, digits, bit_size, range;
1327 /* True if the C type of the given name maps to this precision.
1328 Note that more than one bit can be set. */
1329 unsigned int c_char : 1;
1330 unsigned int c_short : 1;
1331 unsigned int c_int : 1;
1332 unsigned int c_long : 1;
1333 unsigned int c_long_long : 1;
1337 extern gfc_integer_info gfc_integer_kinds[];
1344 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1345 unsigned int c_bool : 1;
1349 extern gfc_logical_info gfc_logical_kinds[];
1354 mpfr_t epsilon, huge, tiny, subnormal;
1355 int kind, radix, digits, min_exponent, max_exponent;
1356 int range, precision;
1358 /* The precision of the type as reported by GET_MODE_PRECISION. */
1361 /* True if the C type of the given name maps to this precision.
1362 Note that more than one bit can be set. */
1363 unsigned int c_float : 1;
1364 unsigned int c_double : 1;
1365 unsigned int c_long_double : 1;
1369 extern gfc_real_info gfc_real_kinds[];
1372 /* Equivalence structures. Equivalent lvalues are linked along the
1373 *eq pointer, equivalence sets are strung along the *next node. */
1374 typedef struct gfc_equiv
1376 struct gfc_equiv *next, *eq;
1383 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1385 /* Holds a single equivalence member after processing. */
1386 typedef struct gfc_equiv_info
1389 HOST_WIDE_INT offset;
1390 HOST_WIDE_INT length;
1391 struct gfc_equiv_info *next;
1394 /* Holds equivalence groups, after they have been processed. */
1395 typedef struct gfc_equiv_list
1397 gfc_equiv_info *equiv;
1398 struct gfc_equiv_list *next;
1401 /* gfc_case stores the selector list of a case statement. The *low
1402 and *high pointers can point to the same expression in the case of
1403 a single value. If *high is NULL, the selection is from *low
1404 upwards, if *low is NULL the selection is *high downwards.
1406 This structure has separate fields to allow single and double linked
1407 lists of CASEs at the same time. The singe linked list along the NEXT
1408 field is a list of cases for a single CASE label. The double linked
1409 list along the LEFT/RIGHT fields is used to detect overlap and to
1410 build a table of the cases for SELECT constructs with a CHARACTER
1413 typedef struct gfc_case
1415 /* Where we saw this case. */
1419 /* Case range values. If (low == high), it's a single value. If one of
1420 the labels is NULL, it's an unbounded case. If both are NULL, this
1421 represents the default case. */
1422 gfc_expr *low, *high;
1424 /* Next case label in the list of cases for a single CASE label. */
1425 struct gfc_case *next;
1427 /* Used for detecting overlap, and for code generation. */
1428 struct gfc_case *left, *right;
1430 /* True if this case label can never be matched. */
1435 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1440 gfc_expr *var, *start, *end, *step;
1444 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1447 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1449 typedef struct gfc_alloc
1452 struct gfc_alloc *next;
1456 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1461 gfc_expr *unit, *file, *status, *access, *form, *recl,
1462 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1470 gfc_expr *unit, *status, *iostat, *iomsg;
1478 gfc_expr *unit, *iostat, *iomsg;
1486 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1487 *name, *access, *sequential, *direct, *form, *formatted,
1488 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1489 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1499 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1501 gfc_symbol *namelist;
1502 /* A format_label of `format_asterisk' indicates the "*" format */
1503 gfc_st_label *format_label;
1504 gfc_st_label *err, *end, *eor;
1506 locus eor_where, end_where, err_where;
1511 typedef struct gfc_forall_iterator
1513 gfc_expr *var, *start, *end, *stride;
1514 struct gfc_forall_iterator *next;
1516 gfc_forall_iterator;
1519 /* Executable statements that fill gfc_code structures. */
1522 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1523 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1524 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1525 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1526 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1527 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1528 EXEC_OPEN, EXEC_CLOSE,
1529 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1530 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1531 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1532 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1533 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1534 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1535 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1540 typedef struct gfc_code
1544 struct gfc_code *block, *next;
1547 gfc_st_label *here, *label, *label2, *label3;
1548 gfc_symtree *symtree;
1549 gfc_expr *expr, *expr2;
1550 /* A name isn't sufficient to identify a subroutine, we need the actual
1551 symbol for the interface definition.
1552 const char *sub_name; */
1553 gfc_symbol *resolved_sym;
1557 gfc_actual_arglist *actual;
1558 gfc_case *case_list;
1559 gfc_iterator *iterator;
1560 gfc_alloc *alloc_list;
1563 gfc_filepos *filepos;
1564 gfc_inquire *inquire;
1566 gfc_forall_iterator *forall_iterator;
1567 struct gfc_code *whichloop;
1569 gfc_entry_list *entry;
1570 gfc_omp_clauses *omp_clauses;
1571 const char *omp_name;
1572 gfc_namelist *omp_namelist;
1575 ext; /* Points to additional structures required by statement */
1577 /* Backend_decl is used for cycle and break labels in do loops, and
1578 probably for other constructs as well, once we translate them. */
1584 /* Storage for DATA statements. */
1585 typedef struct gfc_data_variable
1589 struct gfc_data_variable *list, *next;
1594 typedef struct gfc_data_value
1596 unsigned int repeat;
1598 struct gfc_data_value *next;
1603 typedef struct gfc_data
1605 gfc_data_variable *var;
1606 gfc_data_value *value;
1609 struct gfc_data *next;
1613 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1614 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1615 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1618 /* Structure for holding compile options */
1622 gfc_source_form source_form;
1623 /* Maximum line lengths in fixed- and free-form source, respectively.
1624 When fixed_line_length or free_line_length are 0, the whole line is used,
1625 regardless of length.
1627 If the user requests a fixed_line_length <7 then gfc_init_options()
1628 emits a fatal error. */
1629 int fixed_line_length;
1630 int free_line_length;
1631 /* Maximum number of continuation lines in fixed- and free-form source,
1633 int max_continue_fixed;
1634 int max_continue_free;
1635 int max_identifier_length;
1640 int warn_conversion;
1641 int warn_implicit_interface;
1642 int warn_line_truncation;
1643 int warn_surprising;
1646 int warn_character_truncation;
1649 int flag_all_intrinsics;
1650 int flag_default_double;
1651 int flag_default_integer;
1652 int flag_default_real;
1654 int flag_underscoring;
1655 int flag_second_underscore;
1656 int flag_implicit_none;
1657 int flag_max_stack_var_size;
1658 int flag_range_check;
1659 int flag_pack_derived;
1660 int flag_repack_arrays;
1661 int flag_preprocessed;
1666 int flag_allow_leading_underscore;
1668 int flag_external_blas;
1669 int blas_matmul_limit;
1670 int flag_cray_pointer;
1678 int warn_nonstd_intrinsics;
1682 int max_subrecord_length;
1686 extern gfc_option_t gfc_option;
1688 /* Constructor nodes for array and structure constructors. */
1689 typedef struct gfc_constructor
1692 gfc_iterator *iterator;
1694 struct gfc_constructor *next;
1697 mpz_t offset; /* Record the offset of array element which appears in
1698 data statement like "data a(5)/4/". */
1699 gfc_component *component; /* Record the component being initialized. */
1702 mpz_t repeat; /* Record the repeat number of initial values in data
1703 statement like "data a/5*10/". */
1708 typedef struct iterator_stack
1710 gfc_symtree *variable;
1712 struct iterator_stack *prev;
1715 extern iterator_stack *iter_stack;
1717 /************************ Function prototypes *************************/
1720 void gfc_formalize_init_value (gfc_symbol *);
1721 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1722 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1723 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1724 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1727 bool gfc_in_match_data (void);
1728 void gfc_set_in_match_data (bool);
1731 void gfc_scanner_done_1 (void);
1732 void gfc_scanner_init_1 (void);
1734 void gfc_add_include_path (const char *, bool);
1735 void gfc_add_intrinsic_modules_path (const char *);
1736 void gfc_release_include_path (void);
1737 FILE *gfc_open_included_file (const char *, bool, bool);
1738 FILE *gfc_open_intrinsic_module (const char *);
1740 int gfc_at_end (void);
1741 int gfc_at_eof (void);
1742 int gfc_at_bol (void);
1743 int gfc_at_eol (void);
1744 void gfc_advance_line (void);
1745 int gfc_check_include (void);
1747 void gfc_skip_comments (void);
1748 int gfc_next_char_literal (int);
1749 int gfc_next_char (void);
1750 int gfc_peek_char (void);
1751 void gfc_error_recovery (void);
1752 void gfc_gobble_whitespace (void);
1753 try gfc_new_file (void);
1754 const char * gfc_read_orig_filename (const char *, const char **);
1756 extern gfc_source_form gfc_current_form;
1757 extern const char *gfc_source_file;
1758 extern locus gfc_current_locus;
1761 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1762 void gfc_free (void *);
1763 int gfc_terminal_width(void);
1764 void gfc_clear_ts (gfc_typespec *);
1765 FILE *gfc_open_file (const char *);
1766 const char *gfc_basic_typename (bt);
1767 const char *gfc_typename (gfc_typespec *);
1769 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1770 "=" : gfc_code2string (intrinsic_operators, OP))
1772 const char *gfc_code2string (const mstring *, int);
1773 int gfc_string2code (const mstring *, const char *);
1774 const char *gfc_intent_string (sym_intent);
1776 void gfc_init_1 (void);
1777 void gfc_init_2 (void);
1778 void gfc_done_1 (void);
1779 void gfc_done_2 (void);
1782 unsigned int gfc_init_options (unsigned int, const char **);
1783 int gfc_handle_option (size_t, const char *, int);
1784 bool gfc_post_options (const char **);
1787 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1791 typedef struct gfc_error_buf
1794 size_t allocated, index;
1798 void gfc_error_init_1 (void);
1799 void gfc_buffer_error (int);
1801 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1802 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1803 void gfc_clear_warning (void);
1804 void gfc_warning_check (void);
1806 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1807 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1808 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1809 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1810 void gfc_clear_error (void);
1811 int gfc_error_check (void);
1812 int gfc_error_flag_test (void);
1814 notification gfc_notification_std (int);
1815 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1817 /* A general purpose syntax error. */
1818 #define gfc_syntax_error(ST) \
1819 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1821 void gfc_push_error (gfc_error_buf *);
1822 void gfc_pop_error (gfc_error_buf *);
1823 void gfc_free_error (gfc_error_buf *);
1825 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1826 void gfc_status_char (char);
1828 void gfc_get_errors (int *, int *);
1831 void gfc_arith_init_1 (void);
1832 void gfc_arith_done_1 (void);
1833 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1834 arith gfc_check_integer_range (mpz_t p, int kind);
1837 int gfc_validate_kind (bt, int, bool);
1838 extern int gfc_index_integer_kind;
1839 extern int gfc_default_integer_kind;
1840 extern int gfc_max_integer_kind;
1841 extern int gfc_default_real_kind;
1842 extern int gfc_default_double_kind;
1843 extern int gfc_default_character_kind;
1844 extern int gfc_default_logical_kind;
1845 extern int gfc_default_complex_kind;
1846 extern int gfc_c_int_kind;
1847 extern int gfc_intio_kind;
1848 extern int gfc_charlen_int_kind;
1849 extern int gfc_numeric_storage_size;
1850 extern int gfc_character_storage_size;
1853 void gfc_clear_new_implicit (void);
1854 try gfc_add_new_implicit_range (int, int);
1855 try gfc_merge_new_implicit (gfc_typespec *);
1856 void gfc_set_implicit_none (void);
1857 void gfc_check_function_type (gfc_namespace *);
1859 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1860 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1862 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1863 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1865 void gfc_set_sym_referenced (gfc_symbol * sym);
1867 try gfc_add_attribute (symbol_attribute *, locus *);
1868 try gfc_add_allocatable (symbol_attribute *, locus *);
1869 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1870 try gfc_add_external (symbol_attribute *, locus *);
1871 try gfc_add_intrinsic (symbol_attribute *, locus *);
1872 try gfc_add_optional (symbol_attribute *, locus *);
1873 try gfc_add_pointer (symbol_attribute *, locus *);
1874 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1875 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1876 try gfc_mod_pointee_as (gfc_array_spec *as);
1877 try gfc_add_protected (symbol_attribute *, const char *, locus *);
1878 try gfc_add_result (symbol_attribute *, const char *, locus *);
1879 try gfc_add_save (symbol_attribute *, const char *, locus *);
1880 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
1881 try gfc_add_saved_common (symbol_attribute *, locus *);
1882 try gfc_add_target (symbol_attribute *, locus *);
1883 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1884 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1885 try gfc_add_common (symbol_attribute *, locus *);
1886 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1887 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1888 try gfc_add_data (symbol_attribute *, const char *, locus *);
1889 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1890 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1891 try gfc_add_elemental (symbol_attribute *, locus *);
1892 try gfc_add_pure (symbol_attribute *, locus *);
1893 try gfc_add_recursive (symbol_attribute *, locus *);
1894 try gfc_add_function (symbol_attribute *, const char *, locus *);
1895 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1896 try gfc_add_value (symbol_attribute *, const char *, locus *);
1897 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
1899 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1900 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1901 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1902 try gfc_add_procedure (symbol_attribute *, procedure_type,
1903 const char *, locus *);
1904 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1905 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1906 gfc_formal_arglist *, locus *);
1907 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1909 void gfc_clear_attr (symbol_attribute *);
1910 try gfc_missing_attr (symbol_attribute *, locus *);
1911 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1913 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1914 gfc_symbol *gfc_use_derived (gfc_symbol *);
1915 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1916 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1918 gfc_st_label *gfc_get_st_label (int);
1919 void gfc_free_st_label (gfc_st_label *);
1920 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1921 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1923 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1924 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1925 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1926 gfc_user_op *gfc_get_uop (const char *);
1927 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1928 void gfc_free_symbol (gfc_symbol *);
1929 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1930 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1931 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1932 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1933 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1934 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1935 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1937 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1939 void gfc_undo_symbols (void);
1940 void gfc_commit_symbols (void);
1941 void gfc_commit_symbol (gfc_symbol * sym);
1942 void gfc_free_namespace (gfc_namespace *);
1944 void gfc_symbol_init_2 (void);
1945 void gfc_symbol_done_2 (void);
1947 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1948 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1949 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1950 void gfc_save_all (gfc_namespace *);
1952 void gfc_symbol_state (void);
1954 gfc_gsymbol *gfc_get_gsymbol (const char *);
1955 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1958 extern int gfc_init_expr;
1960 /* Given a symbol that we have decided is intrinsic, mark it as such
1961 by placing it into a special module that is otherwise impossible to
1964 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1966 void gfc_intrinsic_init_1 (void);
1967 void gfc_intrinsic_done_1 (void);
1969 char gfc_type_letter (bt);
1970 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1971 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1972 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1973 int gfc_generic_intrinsic (const char *);
1974 int gfc_specific_intrinsic (const char *);
1975 int gfc_intrinsic_name (const char *, int);
1976 int gfc_intrinsic_actual_ok (const char *, const bool);
1977 gfc_intrinsic_sym *gfc_find_function (const char *);
1979 match gfc_intrinsic_func_interface (gfc_expr *, int);
1980 match gfc_intrinsic_sub_interface (gfc_code *, int);
1982 /* match.c -- FIXME */
1983 void gfc_free_iterator (gfc_iterator *, int);
1984 void gfc_free_forall_iterator (gfc_forall_iterator *);
1985 void gfc_free_alloc_list (gfc_alloc *);
1986 void gfc_free_namelist (gfc_namelist *);
1987 void gfc_free_equiv (gfc_equiv *);
1988 void gfc_free_data (gfc_data *);
1989 void gfc_free_case_list (gfc_case *);
1991 /* matchexp.c -- FIXME too? */
1992 gfc_expr *gfc_get_parentheses (gfc_expr *);
1995 void gfc_free_omp_clauses (gfc_omp_clauses *);
1996 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
1997 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
1998 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
1999 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2002 void gfc_free_actual_arglist (gfc_actual_arglist *);
2003 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2004 const char *gfc_extract_int (gfc_expr *, int *);
2005 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2007 gfc_expr *gfc_build_conversion (gfc_expr *);
2008 void gfc_free_ref_list (gfc_ref *);
2009 void gfc_type_convert_binary (gfc_expr *);
2010 int gfc_is_constant_expr (gfc_expr *);
2011 try gfc_simplify_expr (gfc_expr *, int);
2012 int gfc_has_vector_index (gfc_expr *);
2014 gfc_expr *gfc_get_expr (void);
2015 void gfc_free_expr (gfc_expr *);
2016 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2017 gfc_expr *gfc_int_expr (int);
2018 gfc_expr *gfc_logical_expr (int, locus *);
2019 mpz_t *gfc_copy_shape (mpz_t *, int);
2020 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2021 gfc_expr *gfc_copy_expr (gfc_expr *);
2023 try gfc_specification_expr (gfc_expr *);
2025 int gfc_numeric_ts (gfc_typespec *);
2026 int gfc_kind_max (gfc_expr *, gfc_expr *);
2028 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2029 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2030 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2031 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2033 gfc_expr *gfc_default_initializer (gfc_typespec *);
2034 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2036 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
2039 extern gfc_code new_st;
2041 void gfc_clear_new_st (void);
2042 gfc_code *gfc_get_code (void);
2043 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2044 void gfc_free_statement (gfc_code *);
2045 void gfc_free_statements (gfc_code *);
2048 try gfc_resolve_expr (gfc_expr *);
2049 void gfc_resolve (gfc_namespace *);
2050 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2051 int gfc_impure_variable (gfc_symbol *);
2052 int gfc_pure (gfc_symbol *);
2053 int gfc_elemental (gfc_symbol *);
2054 try gfc_resolve_iterator (gfc_iterator *, bool);
2055 try gfc_resolve_index (gfc_expr *, int);
2056 try gfc_resolve_dim_arg (gfc_expr *);
2057 int gfc_is_formal_arg (void);
2060 void gfc_free_array_spec (gfc_array_spec *);
2061 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2063 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2064 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2065 try gfc_resolve_array_spec (gfc_array_spec *, int);
2067 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2069 gfc_expr *gfc_start_constructor (bt, int, locus *);
2070 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2071 void gfc_free_constructor (gfc_constructor *);
2072 void gfc_simplify_iterator_var (gfc_expr *);
2073 try gfc_expand_constructor (gfc_expr *);
2074 int gfc_constant_ac (gfc_expr *);
2075 int gfc_expanded_ac (gfc_expr *);
2076 void gfc_resolve_character_array_constructor (gfc_expr *);
2077 try gfc_resolve_array_constructor (gfc_expr *);
2078 try gfc_check_constructor_type (gfc_expr *);
2079 try gfc_check_iter_variable (gfc_expr *);
2080 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2081 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
2082 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2083 try gfc_array_size (gfc_expr *, mpz_t *);
2084 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2085 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2086 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2087 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2088 gfc_constructor *gfc_get_constructor (void);
2089 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
2090 try spec_size (gfc_array_spec *, mpz_t *);
2091 int gfc_is_compile_time_shape (gfc_array_spec *);
2093 /* interface.c -- FIXME: some of these should be in symbol.c */
2094 void gfc_free_interface (gfc_interface *);
2095 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2096 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2097 void gfc_check_interfaces (gfc_namespace *);
2098 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2099 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2100 gfc_actual_arglist **);
2101 try gfc_extend_expr (gfc_expr *);
2102 void gfc_free_formal_arglist (gfc_formal_arglist *);
2103 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2104 try gfc_add_interface (gfc_symbol * sym);
2107 extern gfc_st_label format_asterisk;
2109 void gfc_free_open (gfc_open *);
2110 try gfc_resolve_open (gfc_open *);
2111 void gfc_free_close (gfc_close *);
2112 try gfc_resolve_close (gfc_close *);
2113 void gfc_free_filepos (gfc_filepos *);
2114 try gfc_resolve_filepos (gfc_filepos *);
2115 void gfc_free_inquire (gfc_inquire *);
2116 try gfc_resolve_inquire (gfc_inquire *);
2117 void gfc_free_dt (gfc_dt *);
2118 try gfc_resolve_dt (gfc_dt *);
2121 void gfc_module_init_2 (void);
2122 void gfc_module_done_2 (void);
2123 void gfc_dump_module (const char *, int);
2124 bool gfc_check_access (gfc_access, gfc_access);
2127 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2128 symbol_attribute gfc_expr_attr (gfc_expr *);
2131 void gfc_generate_code (gfc_namespace *);
2132 void gfc_generate_module_code (gfc_namespace *);
2135 typedef int (*compare_fn) (void *, void *);
2136 void gfc_insert_bbt (void *, void *, compare_fn);
2137 void gfc_delete_bbt (void *, void *, compare_fn);
2139 /* dump-parse-tree.c */
2140 void gfc_show_actual_arglist (gfc_actual_arglist *);
2141 void gfc_show_array_ref (gfc_array_ref *);
2142 void gfc_show_array_spec (gfc_array_spec *);
2143 void gfc_show_attr (symbol_attribute *);
2144 void gfc_show_code (int, gfc_code *);
2145 void gfc_show_components (gfc_symbol *);
2146 void gfc_show_constructor (gfc_constructor *);
2147 void gfc_show_equiv (gfc_equiv *);
2148 void gfc_show_expr (gfc_expr *);
2149 void gfc_show_namelist (gfc_namelist *);
2150 void gfc_show_namespace (gfc_namespace *);
2151 void gfc_show_ref (gfc_ref *);
2152 void gfc_show_symbol (gfc_symbol *);
2153 void gfc_show_typespec (gfc_typespec *);
2156 try gfc_parse_file (void);
2157 void global_used (gfc_gsymbol *, locus *);
2160 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2162 #endif /* GCC_GFORTRAN_H */