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 features were obsoleted nor deleted in F2003. */
103 #define GFC_STD_F95 (1<<3) /* New in F95. */
104 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
105 #define GFC_STD_F95_OBS (1<<1) /* Obsoleted in F95. */
106 #define GFC_STD_F77 (1<<0) /* Up to and including F77. */
108 /* Bitmasks for the various FPE that can be enabled. */
109 #define GFC_FPE_INVALID (1<<0)
110 #define GFC_FPE_DENORMAL (1<<1)
111 #define GFC_FPE_ZERO (1<<2)
112 #define GFC_FPE_OVERFLOW (1<<3)
113 #define GFC_FPE_UNDERFLOW (1<<4)
114 #define GFC_FPE_PRECISION (1<<5)
116 /* Keep this in sync with libgfortran/io/io.h ! */
119 { CONVERT_NATIVE=0, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
123 /*************************** Enums *****************************/
125 /* The author remains confused to this day about the convention of
126 returning '0' for 'SUCCESS'... or was it the other way around? The
127 following enum makes things much more readable. We also start
128 values off at one instead of zero. */
131 { SUCCESS = 1, FAILURE }
134 /* This is returned by gfc_notification_std to know if, given the flags
135 that were given (-std=, -pedantic) we should issue an error, a warning
139 { SILENT, WARNING, ERROR }
142 /* Matchers return one of these three values. The difference between
143 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
144 successful, but that something non-syntactic is wrong and an error
145 has already been issued. */
148 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
152 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
156 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
157 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH
161 /* Expression node types. */
163 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
164 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
170 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
171 AS_ASSUMED_SIZE, AS_UNKNOWN
176 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
179 /* Statement label types. */
181 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
182 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
186 /* Intrinsic operators. */
188 { GFC_INTRINSIC_BEGIN = 0,
189 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
190 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
191 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
192 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
193 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
194 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
195 INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES,
196 GFC_INTRINSIC_END /* Sentinel */
201 /* Strings for all intrinsic operators. */
202 extern mstring intrinsic_operators[];
205 /* This macro is the number of intrinsic operators that exist.
206 Assumptions are made about the numbering of the interface_op enums. */
207 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
209 /* Arithmetic results. */
211 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
212 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
219 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
220 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
221 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
222 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
223 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
224 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
225 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
226 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
227 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
228 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
229 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
230 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
231 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
232 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
233 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
234 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
235 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
236 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
237 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
238 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
239 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
240 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
241 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE,
247 /* Types of interfaces that we can have. Assignment interfaces are
248 considered to be intrinsic operators. */
251 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
252 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
256 /* Symbol flavors: these are all mutually exclusive.
257 10 elements = 4 bits. */
258 typedef enum sym_flavor
260 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
261 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST
265 /* Procedure types. 7 elements = 3 bits. */
266 typedef enum procedure_type
267 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
268 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
273 typedef enum sym_intent
274 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
279 typedef enum gfc_access
280 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
284 /* Flags to keep track of where an interface came from.
285 4 elements = 2 bits. */
287 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
291 /* Strings for all symbol attributes. We use these for dumping the
292 parse tree, in error messages, and also when reading and writing
293 modules. In symbol.c. */
294 extern const mstring flavors[];
295 extern const mstring procedures[];
296 extern const mstring intents[];
297 extern const mstring access_types[];
298 extern const mstring ifsrc_types[];
300 /* Enumeration of all the generic intrinsic functions. Used by the
301 backend for identification of a function. */
303 enum gfc_generic_isym_id
305 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
306 the backend (eg. KIND). */
340 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
350 GFC_ISYM_DOT_PRODUCT,
438 GFC_ISYM_SET_EXPONENT,
470 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
472 /************************* Structures *****************************/
474 /* Used for keeping things in balanced binary trees. */
475 #define BBT_HEADER(self) int priority; struct self *left, *right
477 /* Symbol attribute structure. */
480 /* Variable attributes. */
481 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
482 optional:1, pointer:1, save:1, target:1, value:1, volatile_:1,
483 dummy:1, result:1, assign:1, threadprivate:1;
485 unsigned data:1, /* Symbol is named in a DATA statement. */
486 use_assoc:1, /* Symbol has been use-associated. */
487 use_only:1; /* Symbol has been use-associated, with ONLY. */
489 unsigned in_namelist:1, in_common:1, in_equivalence:1;
490 unsigned function:1, subroutine:1, generic:1, generic_copy:1;
491 unsigned implicit_type:1; /* Type defined via implicit rules. */
492 unsigned untyped:1; /* No implicit type could be found. */
494 /* Function/subroutine attributes */
495 unsigned sequence:1, elemental:1, pure:1, recursive:1;
496 unsigned unmaskable:1, masked:1, contained:1;
498 /* This is set if the subroutine doesn't return. Currently, this
499 is only possible for intrinsic subroutines. */
502 /* Set if this procedure is an alternate entry point. These procedures
503 don't have any code associated, and the backend will turn them into
504 thunks to the master function. */
507 /* Set if this is the master function for a procedure with multiple
509 unsigned entry_master:1;
511 /* Set if this is the master function for a function with multiple
512 entry points where characteristics of the entry points differ. */
513 unsigned mixed_entry_master:1;
515 /* Set if a function must always be referenced by an explicit interface. */
516 unsigned always_explicit:1;
518 /* Set if the symbol has been referenced in an expression. No further
519 modification of type or type parameters is permitted. */
520 unsigned referenced:1;
522 /* Set if the symbol has ambiguous interfaces. */
523 unsigned ambiguous_interfaces:1;
525 /* Set if the is the symbol for the main program. This is the least
526 cumbersome way to communicate this function property without
527 strcmp'ing with __MAIN everywhere. */
528 unsigned is_main_program:1;
530 /* Mutually exclusive multibit attributes. */
531 ENUM_BITFIELD (gfc_access) access:2;
532 ENUM_BITFIELD (sym_intent) intent:2;
533 ENUM_BITFIELD (sym_flavor) flavor:4;
534 ENUM_BITFIELD (ifsrc) if_source:2;
536 ENUM_BITFIELD (procedure_type) proc:3;
538 /* Special attributes for Cray pointers, pointees. */
539 unsigned cray_pointer:1, cray_pointee:1;
541 /* The symbol is a derived type with allocatable components, possibly nested.
543 unsigned alloc_comp:1;
548 /* The following three structures are used to identify a location in
551 gfc_file is used to maintain a tree of the source files and how
552 they include each other
554 gfc_linebuf holds a single line of source code and information
555 which file it resides in
557 locus point to the sourceline and the character in the source
561 typedef struct gfc_file
563 struct gfc_file *included_by, *next, *up;
564 int inclusion_line, line;
568 typedef struct gfc_linebuf
570 #ifdef USE_MAPPED_LOCATION
571 source_location location;
575 struct gfc_file *file;
576 struct gfc_linebuf *next;
583 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
591 /* In order for the "gfc" format checking to work correctly, you must
592 have declared a typedef locus first. */
593 #if GCC_VERSION >= 4001
594 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
596 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
600 extern int gfc_suppress_error;
603 /* Character length structures hold the expression that gives the
604 length of a character variable. We avoid putting these into
605 gfc_typespec because doing so prevents us from doing structure
606 copies and forces us to deallocate any typespecs we create, as well
607 as structures that contain typespecs. They also can have multiple
608 character typespecs pointing to them.
610 These structures form a singly linked list within the current
611 namespace and are deallocated with the namespace. It is possible to
612 end up with gfc_charlen structures that have nothing pointing to them. */
614 typedef struct gfc_charlen
616 struct gfc_expr *length;
617 struct gfc_charlen *next;
624 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
626 /* Type specification structure. FIXME: derived and cl could be union??? */
631 struct gfc_symbol *derived;
632 gfc_charlen *cl; /* For character types only. */
636 /* Array specification. */
639 int rank; /* A rank of zero means that a variable is a scalar. */
641 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
643 /* These two fields are used with the Cray Pointer extension. */
644 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
645 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
646 AS_EXPLICIT, but we want to remember that we
652 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
655 /* Components of derived types. */
656 typedef struct gfc_component
661 int pointer, allocatable, dimension;
666 struct gfc_expr *initializer;
667 struct gfc_component *next;
671 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
673 /* Formal argument lists are lists of symbols. */
674 typedef struct gfc_formal_arglist
676 /* Symbol representing the argument at this position in the arglist. */
677 struct gfc_symbol *sym;
678 /* Points to the next formal argument. */
679 struct gfc_formal_arglist *next;
683 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
686 /* The gfc_actual_arglist structure is for actual arguments. */
687 typedef struct gfc_actual_arglist
690 /* Alternate return label when the expr member is null. */
691 struct gfc_st_label *label;
693 /* This is set to the type of an eventual omitted optional
694 argument. This is used to determine if a hidden string length
695 argument has to be added to a function call. */
698 struct gfc_expr *expr;
699 struct gfc_actual_arglist *next;
703 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
706 /* Because a symbol can belong to multiple namelists, they must be
707 linked externally to the symbol itself. */
708 typedef struct gfc_namelist
710 struct gfc_symbol *sym;
711 struct gfc_namelist *next;
715 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
720 OMP_LIST_FIRSTPRIVATE,
721 OMP_LIST_LASTPRIVATE,
722 OMP_LIST_COPYPRIVATE,
726 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
738 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
742 /* Because a symbol can belong to multiple namelists, they must be
743 linked externally to the symbol itself. */
744 typedef struct gfc_omp_clauses
746 struct gfc_expr *if_expr;
747 struct gfc_expr *num_threads;
748 gfc_namelist *lists[OMP_LIST_NUM];
757 struct gfc_expr *chunk_size;
765 bool nowait, ordered;
769 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
772 /* The gfc_st_label structure is a doubly linked list attached to a
773 namespace that records the usage of statement labels within that
775 /* TODO: Make format/statement specifics a union. */
776 typedef struct gfc_st_label
778 BBT_HEADER(gfc_st_label);
782 gfc_sl_type defined, referenced;
784 struct gfc_expr *format;
793 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
794 typedef struct gfc_interface
796 struct gfc_symbol *sym;
798 struct gfc_interface *next;
802 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
805 /* User operator nodes. These are like stripped down symbols. */
810 gfc_interface *operator;
811 struct gfc_namespace *ns;
816 /* Symbol nodes. These are important things. They are what the
817 standard refers to as "entities". The possibly multiple names that
818 refer to the same entity are accomplished by a binary tree of
819 symtree structures that is balanced by the red-black method-- more
820 than one symtree node can point to any given symbol. */
822 typedef struct gfc_symbol
824 const char *name; /* Primary name, before renaming */
825 const char *module; /* Module this symbol came from */
829 symbol_attribute attr;
831 /* The interface member points to the formal argument list if the
832 symbol is a function or subroutine name. If the symbol is a
833 generic name, the generic member points to the list of
836 gfc_interface *generic;
837 gfc_access component_access;
839 gfc_formal_arglist *formal;
840 struct gfc_namespace *formal_ns;
842 struct gfc_expr *value; /* Parameter/Initializer value */
844 struct gfc_symbol *result; /* function result symbol */
845 gfc_component *components; /* Derived type components */
847 /* Defined only for Cray pointees; points to their pointer. */
848 struct gfc_symbol *cp_pointer;
850 struct gfc_symbol *common_next; /* Links for COMMON syms */
852 /* This is in fact a gfc_common_head but it is only used for pointer
853 comparisons to check if symbols are in the same common block. */
854 struct gfc_common_head* common_head;
856 /* Make sure setup code for dummy arguments is generated in the correct
862 gfc_namelist *namelist, *namelist_tail;
864 /* Change management fields. Symbols that might be modified by the
865 current statement have the mark member nonzero and are kept in a
866 singly linked list through the tlink field. Of these symbols,
867 symbols with old_symbol equal to NULL are symbols created within
868 the current statement. Otherwise, old_symbol points to a copy of
871 struct gfc_symbol *old_symbol, *tlink;
872 unsigned mark:1, new:1;
873 /* Nonzero if all equivalences associated with this symbol have been
875 unsigned equiv_built:1;
876 /* Set if this variable is used as an index name in a FORALL. */
877 unsigned forall_index:1;
879 struct gfc_namespace *ns; /* namespace containing this symbol */
886 /* This structure is used to keep track of symbols in common blocks. */
888 typedef struct gfc_common_head
891 char use_assoc, saved, threadprivate;
892 char name[GFC_MAX_SYMBOL_LEN + 1];
893 struct gfc_symbol *head;
897 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
900 /* A list of all the alternate entry points for a procedure. */
902 typedef struct gfc_entry_list
904 /* The symbol for this entry point. */
906 /* The zero-based id of this entry point. */
908 /* The LABEL_EXPR marking this entry point. */
910 /* The nest item in the list. */
911 struct gfc_entry_list *next;
915 #define gfc_get_entry_list() \
916 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
918 /* Within a namespace, symbols are pointed to by symtree nodes that
919 are linked together in a balanced binary tree. There can be
920 several symtrees pointing to the same symbol node via USE
923 typedef struct gfc_symtree
925 BBT_HEADER (gfc_symtree);
930 gfc_symbol *sym; /* Symbol associated with this node */
932 gfc_common_head *common;
939 /* A linked list of derived types in the namespace. */
940 typedef struct gfc_dt_list
942 struct gfc_symbol *derived;
943 struct gfc_dt_list *next;
947 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
950 /* A namespace describes the contents of procedure, module or
952 /* ??? Anything else use these? */
954 typedef struct gfc_namespace
956 /* Tree containing all the symbols in this namespace. */
957 gfc_symtree *sym_root;
958 /* Tree containing all the user-defined operators in the namespace. */
959 gfc_symtree *uop_root;
960 /* Tree containing all the common blocks. */
961 gfc_symtree *common_root;
963 /* If set_flag[letter] is set, an implicit type has been set for letter. */
964 int set_flag[GFC_LETTERS];
965 /* Keeps track of the implicit types associated with the letters. */
966 gfc_typespec default_type[GFC_LETTERS];
968 /* If this is a namespace of a procedure, this points to the procedure. */
969 struct gfc_symbol *proc_name;
970 /* If this is the namespace of a unit which contains executable
971 code, this points to it. */
972 struct gfc_code *code;
974 /* Points to the equivalences set up in this namespace. */
975 struct gfc_equiv *equiv;
977 /* Points to the equivalence groups produced by trans_common. */
978 struct gfc_equiv_list *equiv_lists;
980 gfc_interface *operator[GFC_INTRINSIC_OPS];
982 /* Points to the parent namespace, i.e. the namespace of a module or
983 procedure in which the procedure belonging to this namespace is
984 contained. The parent namespace points to this namespace either
985 directly via CONTAINED, or indirectly via the chain built by
987 struct gfc_namespace *parent;
988 /* CONTAINED points to the first contained namespace. Sibling
989 namespaces are chained via SIBLING. */
990 struct gfc_namespace *contained, *sibling;
992 gfc_common_head blank_common;
993 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
995 gfc_st_label *st_labels;
996 /* This list holds information about all the data initializers in
998 struct gfc_data *data;
1000 gfc_charlen *cl_list;
1002 int save_all, seen_save, seen_implicit_none;
1004 /* Normally we don't need to refcount namespaces. However when we read
1005 a module containing a function with multiple entry points, this
1006 will appear as several functions with the same formal namespace. */
1009 /* A list of all alternate entry points to this procedure (or NULL). */
1010 gfc_entry_list *entries;
1012 /* A list of all derived types in this procedure (or NULL). */
1013 gfc_dt_list *derived_types;
1015 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1018 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1023 extern gfc_namespace *gfc_current_ns;
1025 /* Global symbols are symbols of global scope. Currently we only use
1026 this to detect collisions already when parsing.
1027 TODO: Extend to verify procedure calls. */
1029 typedef struct gfc_gsymbol
1031 BBT_HEADER(gfc_gsymbol);
1034 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1035 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1042 extern gfc_gsymbol *gfc_gsym_root;
1044 /* Information on interfaces being built. */
1047 interface_type type;
1051 gfc_intrinsic_op op;
1055 extern gfc_interface_info current_interface;
1058 /* Array reference. */
1059 typedef struct gfc_array_ref
1062 int dimen; /* # of components in the reference */
1066 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1067 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1068 *stride[GFC_MAX_DIMENSIONS];
1071 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1072 dimen_type[GFC_MAX_DIMENSIONS];
1074 struct gfc_expr *offset;
1078 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1081 /* Component reference nodes. A variable is stored as an expression
1082 node that points to the base symbol. After that, a singly linked
1083 list of component reference nodes gives the variable's complete
1084 resolution. The array_ref component may be present and comes
1085 before the component component. */
1088 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1091 typedef struct gfc_ref
1097 struct gfc_array_ref ar;
1101 gfc_component *component;
1108 struct gfc_expr *start, *end; /* Substring */
1109 gfc_charlen *length;
1116 struct gfc_ref *next;
1120 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1123 /* Structures representing intrinsic symbols and their arguments lists. */
1124 typedef struct gfc_intrinsic_arg
1126 char name[GFC_MAX_SYMBOL_LEN + 1];
1130 gfc_actual_arglist *actual;
1132 struct gfc_intrinsic_arg *next;
1138 /* Specifies the various kinds of check functions used to verify the
1139 argument lists of intrinsic functions. fX with X an integer refer
1140 to check functions of intrinsics with X arguments. f1m is used for
1141 the MAX and MIN intrinsics which can have an arbitrary number of
1142 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1143 these have special semantics. */
1148 try (*f1)(struct gfc_expr *);
1149 try (*f1m)(gfc_actual_arglist *);
1150 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1151 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1152 try (*f3ml)(gfc_actual_arglist *);
1153 try (*f3red)(gfc_actual_arglist *);
1154 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1156 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1157 struct gfc_expr *, struct gfc_expr *);
1161 /* Like gfc_check_f, these specify the type of the simplification
1162 function associated with an intrinsic. The fX are just like in
1163 gfc_check_f. cc is used for type conversion functions. */
1167 struct gfc_expr *(*f0)(void);
1168 struct gfc_expr *(*f1)(struct gfc_expr *);
1169 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1170 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1172 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1173 struct gfc_expr *, struct gfc_expr *);
1174 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1175 struct gfc_expr *, struct gfc_expr *,
1177 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1181 /* Again like gfc_check_f, these specify the type of the resolution
1182 function associated with an intrinsic. The fX are just like in
1183 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1188 void (*f0)(struct gfc_expr *);
1189 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1190 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1191 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1192 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1194 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1195 struct gfc_expr *, struct gfc_expr *);
1196 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1197 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1198 void (*s1)(struct gfc_code *);
1203 typedef struct gfc_intrinsic_sym
1205 const char *name, *lib_name;
1206 gfc_intrinsic_arg *formal;
1208 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1210 gfc_simplify_f simplify;
1212 gfc_resolve_f resolve;
1213 struct gfc_intrinsic_sym *specific_head, *next;
1214 gfc_generic_isym_id generic_id;
1220 /* Expression nodes. The expression node types deserve explanations,
1221 since the last couple can be easily misconstrued:
1223 EXPR_OP Operator node pointing to one or two other nodes
1224 EXPR_FUNCTION Function call, symbol points to function's name
1225 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1226 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1227 which expresses structure, array and substring refs.
1228 EXPR_NULL The NULL pointer value (which also has a basic type).
1229 EXPR_SUBSTRING A substring of a constant string
1230 EXPR_STRUCTURE A structure constructor
1231 EXPR_ARRAY An array constructor. */
1235 #define GFC_RND_MODE GMP_RNDN
1237 typedef struct gfc_expr
1241 gfc_typespec ts; /* These two refer to the overall expression */
1244 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1246 /* Nonnull for functions and structure constructors */
1247 gfc_symtree *symtree;
1253 /* True if it is converted from Hollerith constant. */
1254 unsigned int from_H : 1;
1255 /* True if the expression is a call to a function that returns an array,
1256 and if we have decided not to allocate temporary data for that array. */
1257 unsigned int inline_noncopying_intrinsic : 1;
1258 /* Used to quickly find a given constructor by it's offset. */
1259 splay_tree con_by_offset;
1276 gfc_intrinsic_op operator;
1278 struct gfc_expr *op1, *op2;
1284 gfc_actual_arglist *actual;
1285 const char *name; /* Points to the ultimate name of the function */
1286 gfc_intrinsic_sym *isym;
1298 struct gfc_constructor *constructor;
1306 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1308 /* Structures for information associated with different kinds of
1309 numbers. The first set of integer parameters define all there is
1310 to know about a particular kind. The rest of the elements are
1311 computed from the first elements. */
1315 /* Values really representable by the target. */
1316 mpz_t huge, pedantic_min_int, min_int;
1318 int kind, radix, digits, bit_size, range;
1320 /* True if the C type of the given name maps to this precision.
1321 Note that more than one bit can be set. */
1322 unsigned int c_char : 1;
1323 unsigned int c_short : 1;
1324 unsigned int c_int : 1;
1325 unsigned int c_long : 1;
1326 unsigned int c_long_long : 1;
1330 extern gfc_integer_info gfc_integer_kinds[];
1337 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1338 unsigned int c_bool : 1;
1342 extern gfc_logical_info gfc_logical_kinds[];
1347 mpfr_t epsilon, huge, tiny, subnormal;
1348 int kind, radix, digits, min_exponent, max_exponent;
1349 int range, precision;
1351 /* The precision of the type as reported by GET_MODE_PRECISION. */
1354 /* True if the C type of the given name maps to this precision.
1355 Note that more than one bit can be set. */
1356 unsigned int c_float : 1;
1357 unsigned int c_double : 1;
1358 unsigned int c_long_double : 1;
1362 extern gfc_real_info gfc_real_kinds[];
1365 /* Equivalence structures. Equivalent lvalues are linked along the
1366 *eq pointer, equivalence sets are strung along the *next node. */
1367 typedef struct gfc_equiv
1369 struct gfc_equiv *next, *eq;
1376 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1378 /* Holds a single equivalence member after processing. */
1379 typedef struct gfc_equiv_info
1382 HOST_WIDE_INT offset;
1383 HOST_WIDE_INT length;
1384 struct gfc_equiv_info *next;
1387 /* Holds equivalence groups, after they have been processed. */
1388 typedef struct gfc_equiv_list
1390 gfc_equiv_info *equiv;
1391 struct gfc_equiv_list *next;
1394 /* gfc_case stores the selector list of a case statement. The *low
1395 and *high pointers can point to the same expression in the case of
1396 a single value. If *high is NULL, the selection is from *low
1397 upwards, if *low is NULL the selection is *high downwards.
1399 This structure has separate fields to allow single and double linked
1400 lists of CASEs at the same time. The singe linked list along the NEXT
1401 field is a list of cases for a single CASE label. The double linked
1402 list along the LEFT/RIGHT fields is used to detect overlap and to
1403 build a table of the cases for SELECT constructs with a CHARACTER
1406 typedef struct gfc_case
1408 /* Where we saw this case. */
1412 /* Case range values. If (low == high), it's a single value. If one of
1413 the labels is NULL, it's an unbounded case. If both are NULL, this
1414 represents the default case. */
1415 gfc_expr *low, *high;
1417 /* Next case label in the list of cases for a single CASE label. */
1418 struct gfc_case *next;
1420 /* Used for detecting overlap, and for code generation. */
1421 struct gfc_case *left, *right;
1423 /* True if this case label can never be matched. */
1428 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1433 gfc_expr *var, *start, *end, *step;
1437 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1440 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1442 typedef struct gfc_alloc
1445 struct gfc_alloc *next;
1449 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1454 gfc_expr *unit, *file, *status, *access, *form, *recl,
1455 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1463 gfc_expr *unit, *status, *iostat, *iomsg;
1471 gfc_expr *unit, *iostat, *iomsg;
1479 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1480 *name, *access, *sequential, *direct, *form, *formatted,
1481 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1482 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1492 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1494 gfc_symbol *namelist;
1495 /* A format_label of `format_asterisk' indicates the "*" format */
1496 gfc_st_label *format_label;
1497 gfc_st_label *err, *end, *eor;
1499 locus eor_where, end_where, err_where;
1504 typedef struct gfc_forall_iterator
1506 gfc_expr *var, *start, *end, *stride;
1507 struct gfc_forall_iterator *next;
1509 gfc_forall_iterator;
1512 /* Executable statements that fill gfc_code structures. */
1515 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1516 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1517 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1518 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1519 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1520 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1521 EXEC_OPEN, EXEC_CLOSE,
1522 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1523 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1524 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1525 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1526 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1527 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1528 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1533 typedef struct gfc_code
1537 struct gfc_code *block, *next;
1540 gfc_st_label *here, *label, *label2, *label3;
1541 gfc_symtree *symtree;
1542 gfc_expr *expr, *expr2;
1543 /* A name isn't sufficient to identify a subroutine, we need the actual
1544 symbol for the interface definition.
1545 const char *sub_name; */
1546 gfc_symbol *resolved_sym;
1550 gfc_actual_arglist *actual;
1551 gfc_case *case_list;
1552 gfc_iterator *iterator;
1553 gfc_alloc *alloc_list;
1556 gfc_filepos *filepos;
1557 gfc_inquire *inquire;
1559 gfc_forall_iterator *forall_iterator;
1560 struct gfc_code *whichloop;
1562 gfc_entry_list *entry;
1563 gfc_omp_clauses *omp_clauses;
1564 const char *omp_name;
1565 gfc_namelist *omp_namelist;
1568 ext; /* Points to additional structures required by statement */
1570 /* Backend_decl is used for cycle and break labels in do loops, and
1571 probably for other constructs as well, once we translate them. */
1577 /* Storage for DATA statements. */
1578 typedef struct gfc_data_variable
1582 struct gfc_data_variable *list, *next;
1587 typedef struct gfc_data_value
1589 unsigned int repeat;
1591 struct gfc_data_value *next;
1596 typedef struct gfc_data
1598 gfc_data_variable *var;
1599 gfc_data_value *value;
1602 struct gfc_data *next;
1606 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1607 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1608 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1611 /* Structure for holding compile options */
1615 gfc_source_form source_form;
1616 /* Maximum line lengths in fixed- and free-form source, respectively.
1617 When fixed_line_length or free_line_length are 0, the whole line is used,
1618 regardless of length.
1620 If the user requests a fixed_line_length <7 then gfc_init_options()
1621 emits a fatal error. */
1622 int fixed_line_length;
1623 int free_line_length;
1624 /* Maximum number of continuation lines in fixed- and free-form source,
1626 int max_continue_fixed;
1627 int max_continue_free;
1628 int max_identifier_length;
1633 int warn_conversion;
1634 int warn_implicit_interface;
1635 int warn_line_truncation;
1636 int warn_surprising;
1641 int flag_all_intrinsics;
1642 int flag_default_double;
1643 int flag_default_integer;
1644 int flag_default_real;
1646 int flag_underscoring;
1647 int flag_second_underscore;
1648 int flag_implicit_none;
1649 int flag_max_stack_var_size;
1650 int flag_range_check;
1651 int flag_pack_derived;
1652 int flag_repack_arrays;
1653 int flag_preprocessed;
1657 int flag_external_blas;
1658 int blas_matmul_limit;
1659 int flag_cray_pointer;
1667 int warn_nonstd_intrinsics;
1671 int max_subrecord_length;
1675 extern gfc_option_t gfc_option;
1677 /* Constructor nodes for array and structure constructors. */
1678 typedef struct gfc_constructor
1681 gfc_iterator *iterator;
1683 struct gfc_constructor *next;
1686 mpz_t offset; /* Record the offset of array element which appears in
1687 data statement like "data a(5)/4/". */
1688 gfc_component *component; /* Record the component being initialized. */
1691 mpz_t repeat; /* Record the repeat number of initial values in data
1692 statement like "data a/5*10/". */
1697 typedef struct iterator_stack
1699 gfc_symtree *variable;
1701 struct iterator_stack *prev;
1704 extern iterator_stack *iter_stack;
1706 /************************ Function prototypes *************************/
1709 void gfc_formalize_init_value (gfc_symbol *);
1710 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1711 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1712 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1713 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1716 void gfc_scanner_done_1 (void);
1717 void gfc_scanner_init_1 (void);
1719 void gfc_add_include_path (const char *, bool);
1720 void gfc_add_intrinsic_modules_path (const char *);
1721 void gfc_release_include_path (void);
1722 FILE *gfc_open_included_file (const char *, bool, bool);
1723 FILE *gfc_open_intrinsic_module (const char *);
1725 int gfc_at_end (void);
1726 int gfc_at_eof (void);
1727 int gfc_at_bol (void);
1728 int gfc_at_eol (void);
1729 void gfc_advance_line (void);
1730 int gfc_check_include (void);
1732 void gfc_skip_comments (void);
1733 int gfc_next_char_literal (int);
1734 int gfc_next_char (void);
1735 int gfc_peek_char (void);
1736 void gfc_error_recovery (void);
1737 void gfc_gobble_whitespace (void);
1738 try gfc_new_file (void);
1739 const char * gfc_read_orig_filename (const char *, const char **);
1741 extern gfc_source_form gfc_current_form;
1742 extern const char *gfc_source_file;
1743 extern locus gfc_current_locus;
1746 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1747 void gfc_free (void *);
1748 int gfc_terminal_width(void);
1749 void gfc_clear_ts (gfc_typespec *);
1750 FILE *gfc_open_file (const char *);
1751 const char *gfc_basic_typename (bt);
1752 const char *gfc_typename (gfc_typespec *);
1754 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1755 "=" : gfc_code2string (intrinsic_operators, OP))
1757 const char *gfc_code2string (const mstring *, int);
1758 int gfc_string2code (const mstring *, const char *);
1759 const char *gfc_intent_string (sym_intent);
1761 void gfc_init_1 (void);
1762 void gfc_init_2 (void);
1763 void gfc_done_1 (void);
1764 void gfc_done_2 (void);
1767 unsigned int gfc_init_options (unsigned int, const char **);
1768 int gfc_handle_option (size_t, const char *, int);
1769 bool gfc_post_options (const char **);
1772 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1776 typedef struct gfc_error_buf
1779 size_t allocated, index;
1783 void gfc_error_init_1 (void);
1784 void gfc_buffer_error (int);
1786 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1787 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1788 void gfc_clear_warning (void);
1789 void gfc_warning_check (void);
1791 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1792 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1793 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1794 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1795 void gfc_clear_error (void);
1796 int gfc_error_check (void);
1797 int gfc_error_flag_test (void);
1799 notification gfc_notification_std (int);
1800 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1802 /* A general purpose syntax error. */
1803 #define gfc_syntax_error(ST) \
1804 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1806 void gfc_push_error (gfc_error_buf *);
1807 void gfc_pop_error (gfc_error_buf *);
1808 void gfc_free_error (gfc_error_buf *);
1810 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1811 void gfc_status_char (char);
1813 void gfc_get_errors (int *, int *);
1816 void gfc_arith_init_1 (void);
1817 void gfc_arith_done_1 (void);
1818 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1819 arith gfc_check_integer_range (mpz_t p, int kind);
1822 int gfc_validate_kind (bt, int, bool);
1823 extern int gfc_index_integer_kind;
1824 extern int gfc_default_integer_kind;
1825 extern int gfc_max_integer_kind;
1826 extern int gfc_default_real_kind;
1827 extern int gfc_default_double_kind;
1828 extern int gfc_default_character_kind;
1829 extern int gfc_default_logical_kind;
1830 extern int gfc_default_complex_kind;
1831 extern int gfc_c_int_kind;
1832 extern int gfc_intio_kind;
1833 extern int gfc_numeric_storage_size;
1834 extern int gfc_character_storage_size;
1837 void gfc_clear_new_implicit (void);
1838 try gfc_add_new_implicit_range (int, int);
1839 try gfc_merge_new_implicit (gfc_typespec *);
1840 void gfc_set_implicit_none (void);
1842 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1843 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1845 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1846 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1848 void gfc_set_sym_referenced (gfc_symbol * sym);
1850 try gfc_add_attribute (symbol_attribute *, locus *);
1851 try gfc_add_allocatable (symbol_attribute *, locus *);
1852 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1853 try gfc_add_external (symbol_attribute *, locus *);
1854 try gfc_add_intrinsic (symbol_attribute *, locus *);
1855 try gfc_add_optional (symbol_attribute *, locus *);
1856 try gfc_add_pointer (symbol_attribute *, locus *);
1857 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1858 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1859 try gfc_mod_pointee_as (gfc_array_spec *as);
1860 try gfc_add_result (symbol_attribute *, const char *, locus *);
1861 try gfc_add_save (symbol_attribute *, const char *, locus *);
1862 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
1863 try gfc_add_saved_common (symbol_attribute *, locus *);
1864 try gfc_add_target (symbol_attribute *, locus *);
1865 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1866 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1867 try gfc_add_common (symbol_attribute *, locus *);
1868 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1869 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1870 try gfc_add_data (symbol_attribute *, const char *, locus *);
1871 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1872 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1873 try gfc_add_elemental (symbol_attribute *, locus *);
1874 try gfc_add_pure (symbol_attribute *, locus *);
1875 try gfc_add_recursive (symbol_attribute *, locus *);
1876 try gfc_add_function (symbol_attribute *, const char *, locus *);
1877 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1878 try gfc_add_value (symbol_attribute *, const char *, locus *);
1879 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
1881 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1882 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1883 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1884 try gfc_add_procedure (symbol_attribute *, procedure_type,
1885 const char *, locus *);
1886 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1887 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1888 gfc_formal_arglist *, locus *);
1889 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1891 void gfc_clear_attr (symbol_attribute *);
1892 try gfc_missing_attr (symbol_attribute *, locus *);
1893 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1895 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1896 gfc_symbol *gfc_use_derived (gfc_symbol *);
1897 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1898 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1900 gfc_st_label *gfc_get_st_label (int);
1901 void gfc_free_st_label (gfc_st_label *);
1902 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1903 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1905 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1906 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1907 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1908 gfc_user_op *gfc_get_uop (const char *);
1909 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1910 void gfc_free_symbol (gfc_symbol *);
1911 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1912 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1913 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1914 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1915 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1916 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1917 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1919 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1921 void gfc_undo_symbols (void);
1922 void gfc_commit_symbols (void);
1923 void gfc_commit_symbol (gfc_symbol * sym);
1924 void gfc_free_namespace (gfc_namespace *);
1926 void gfc_symbol_init_2 (void);
1927 void gfc_symbol_done_2 (void);
1929 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1930 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1931 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1932 void gfc_save_all (gfc_namespace *);
1934 void gfc_symbol_state (void);
1936 gfc_gsymbol *gfc_get_gsymbol (const char *);
1937 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1940 extern int gfc_init_expr;
1942 /* Given a symbol that we have decided is intrinsic, mark it as such
1943 by placing it into a special module that is otherwise impossible to
1946 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1948 void gfc_intrinsic_init_1 (void);
1949 void gfc_intrinsic_done_1 (void);
1951 char gfc_type_letter (bt);
1952 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1953 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1954 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1955 int gfc_generic_intrinsic (const char *);
1956 int gfc_specific_intrinsic (const char *);
1957 int gfc_intrinsic_name (const char *, int);
1958 int gfc_intrinsic_actual_ok (const char *, const bool);
1959 gfc_intrinsic_sym *gfc_find_function (const char *);
1961 match gfc_intrinsic_func_interface (gfc_expr *, int);
1962 match gfc_intrinsic_sub_interface (gfc_code *, int);
1965 void gfc_simplify_init_1 (void);
1967 /* match.c -- FIXME */
1968 void gfc_free_iterator (gfc_iterator *, int);
1969 void gfc_free_forall_iterator (gfc_forall_iterator *);
1970 void gfc_free_alloc_list (gfc_alloc *);
1971 void gfc_free_namelist (gfc_namelist *);
1972 void gfc_free_equiv (gfc_equiv *);
1973 void gfc_free_data (gfc_data *);
1974 void gfc_free_case_list (gfc_case *);
1976 /* matchexp.c -- FIXME too? */
1977 gfc_expr *gfc_get_parentheses (gfc_expr *);
1980 void gfc_free_omp_clauses (gfc_omp_clauses *);
1981 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
1982 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
1983 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
1984 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
1987 void gfc_free_actual_arglist (gfc_actual_arglist *);
1988 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1989 const char *gfc_extract_int (gfc_expr *, int *);
1990 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
1992 gfc_expr *gfc_build_conversion (gfc_expr *);
1993 void gfc_free_ref_list (gfc_ref *);
1994 void gfc_type_convert_binary (gfc_expr *);
1995 int gfc_is_constant_expr (gfc_expr *);
1996 try gfc_simplify_expr (gfc_expr *, int);
1997 int gfc_has_vector_index (gfc_expr *);
1999 gfc_expr *gfc_get_expr (void);
2000 void gfc_free_expr (gfc_expr *);
2001 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2002 gfc_expr *gfc_int_expr (int);
2003 gfc_expr *gfc_logical_expr (int, locus *);
2004 mpz_t *gfc_copy_shape (mpz_t *, int);
2005 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2006 gfc_expr *gfc_copy_expr (gfc_expr *);
2008 try gfc_specification_expr (gfc_expr *);
2010 int gfc_numeric_ts (gfc_typespec *);
2011 int gfc_kind_max (gfc_expr *, gfc_expr *);
2013 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2014 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2015 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2016 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2018 gfc_expr *gfc_default_initializer (gfc_typespec *);
2019 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2021 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
2024 extern gfc_code new_st;
2026 void gfc_clear_new_st (void);
2027 gfc_code *gfc_get_code (void);
2028 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2029 void gfc_free_statement (gfc_code *);
2030 void gfc_free_statements (gfc_code *);
2033 try gfc_resolve_expr (gfc_expr *);
2034 void gfc_resolve (gfc_namespace *);
2035 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2036 int gfc_impure_variable (gfc_symbol *);
2037 int gfc_pure (gfc_symbol *);
2038 int gfc_elemental (gfc_symbol *);
2039 try gfc_resolve_iterator (gfc_iterator *, bool);
2040 try gfc_resolve_index (gfc_expr *, int);
2041 try gfc_resolve_dim_arg (gfc_expr *);
2042 int gfc_is_formal_arg (void);
2045 void gfc_free_array_spec (gfc_array_spec *);
2046 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2048 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2049 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2050 try gfc_resolve_array_spec (gfc_array_spec *, int);
2052 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2054 gfc_expr *gfc_start_constructor (bt, int, locus *);
2055 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2056 void gfc_free_constructor (gfc_constructor *);
2057 void gfc_simplify_iterator_var (gfc_expr *);
2058 try gfc_expand_constructor (gfc_expr *);
2059 int gfc_constant_ac (gfc_expr *);
2060 int gfc_expanded_ac (gfc_expr *);
2061 void gfc_resolve_character_array_constructor (gfc_expr *);
2062 try gfc_resolve_array_constructor (gfc_expr *);
2063 try gfc_check_constructor_type (gfc_expr *);
2064 try gfc_check_iter_variable (gfc_expr *);
2065 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2066 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
2067 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2068 try gfc_array_size (gfc_expr *, mpz_t *);
2069 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2070 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2071 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2072 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2073 gfc_constructor *gfc_get_constructor (void);
2074 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
2075 try spec_size (gfc_array_spec *, mpz_t *);
2076 int gfc_is_compile_time_shape (gfc_array_spec *);
2078 /* interface.c -- FIXME: some of these should be in symbol.c */
2079 void gfc_free_interface (gfc_interface *);
2080 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2081 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2082 void gfc_check_interfaces (gfc_namespace *);
2083 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2084 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2085 gfc_actual_arglist **);
2086 try gfc_extend_expr (gfc_expr *);
2087 void gfc_free_formal_arglist (gfc_formal_arglist *);
2088 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2089 try gfc_add_interface (gfc_symbol * sym);
2092 extern gfc_st_label format_asterisk;
2094 void gfc_free_open (gfc_open *);
2095 try gfc_resolve_open (gfc_open *);
2096 void gfc_free_close (gfc_close *);
2097 try gfc_resolve_close (gfc_close *);
2098 void gfc_free_filepos (gfc_filepos *);
2099 try gfc_resolve_filepos (gfc_filepos *);
2100 void gfc_free_inquire (gfc_inquire *);
2101 try gfc_resolve_inquire (gfc_inquire *);
2102 void gfc_free_dt (gfc_dt *);
2103 try gfc_resolve_dt (gfc_dt *);
2106 void gfc_module_init_2 (void);
2107 void gfc_module_done_2 (void);
2108 void gfc_dump_module (const char *, int);
2109 bool gfc_check_access (gfc_access, gfc_access);
2112 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2113 symbol_attribute gfc_expr_attr (gfc_expr *);
2116 void gfc_generate_code (gfc_namespace *);
2117 void gfc_generate_module_code (gfc_namespace *);
2120 typedef int (*compare_fn) (void *, void *);
2121 void gfc_insert_bbt (void *, void *, compare_fn);
2122 void gfc_delete_bbt (void *, void *, compare_fn);
2124 /* dump-parse-tree.c */
2125 void gfc_show_actual_arglist (gfc_actual_arglist *);
2126 void gfc_show_array_ref (gfc_array_ref *);
2127 void gfc_show_array_spec (gfc_array_spec *);
2128 void gfc_show_attr (symbol_attribute *);
2129 void gfc_show_code (int, gfc_code *);
2130 void gfc_show_components (gfc_symbol *);
2131 void gfc_show_constructor (gfc_constructor *);
2132 void gfc_show_equiv (gfc_equiv *);
2133 void gfc_show_expr (gfc_expr *);
2134 void gfc_show_namelist (gfc_namelist *);
2135 void gfc_show_namespace (gfc_namespace *);
2136 void gfc_show_ref (gfc_ref *);
2137 void gfc_show_symbol (gfc_symbol *);
2138 void gfc_show_typespec (gfc_typespec *);
2141 try gfc_parse_file (void);
2142 void global_used (gfc_gsymbol *, locus *);
2145 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2147 #endif /* GCC_GFORTRAN_H */