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"
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
59 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
60 #define GFC_MAX_DIMENSIONS 7 /* Maximum dimensions in an array. */
61 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
63 #define free(x) Use_gfc_free_instead_of_free()
64 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
67 #define NULL ((void *) 0)
71 #define stringize(x) expand_macro(x)
72 #define expand_macro(x) # x
74 /* For a the runtime library, a standard prefix is a requirement to
75 avoid cluttering the namespace with things nobody asked for. It's
76 ugly to look at and a pain to type when you add the prefix by hand,
77 so we hide it behind a macro. */
78 #define PREFIX(x) "_gfortran_" x
81 #define BLANK_COMMON_NAME "__BLNK__"
83 /* Macro to initialize an mstring structure. */
84 #define minit(s, t) { s, NULL, t }
86 /* Structure for storing strings to be matched by gfc_match_string. */
96 /* Flags to specify which standard/extension contains a feature. */
97 #define GFC_STD_LEGACY (1<<6) /* Backward compatibility. */
98 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */
99 #define GFC_STD_F2003 (1<<4) /* New in F2003. */
100 /* Note that no features were obsoleted nor deleted in F2003. */
101 #define GFC_STD_F95 (1<<3) /* New in F95. */
102 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
103 #define GFC_STD_F95_OBS (1<<1) /* Obsoleted in F95. */
104 #define GFC_STD_F77 (1<<0) /* Up to and including F77. */
106 /* Bitmasks for the various FPE that can be enabled. */
107 #define GFC_FPE_INVALID (1<<0)
108 #define GFC_FPE_DENORMAL (1<<1)
109 #define GFC_FPE_ZERO (1<<2)
110 #define GFC_FPE_OVERFLOW (1<<3)
111 #define GFC_FPE_UNDERFLOW (1<<4)
112 #define GFC_FPE_PRECISION (1<<5)
114 /* Keep this in sync with libgfortran/io/io.h ! */
117 { CONVERT_NATIVE=0, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
121 /*************************** Enums *****************************/
123 /* The author remains confused to this day about the convention of
124 returning '0' for 'SUCCESS'... or was it the other way around? The
125 following enum makes things much more readable. We also start
126 values off at one instead of zero. */
129 { SUCCESS = 1, FAILURE }
132 /* This is returned by gfc_notification_std to know if, given the flags
133 that were given (-std=, -pedantic) we should issue an error, a warning
137 { SILENT, WARNING, ERROR }
140 /* Matchers return one of these three values. The difference between
141 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
142 successful, but that something non-syntactic is wrong and an error
143 has already been issued. */
146 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
150 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
154 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
155 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH
159 /* Expression node types. */
161 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
162 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
168 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
169 AS_ASSUMED_SIZE, AS_UNKNOWN
174 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
177 /* Statement label types. */
179 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
180 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
184 /* Intrinsic operators. */
186 { GFC_INTRINSIC_BEGIN = 0,
187 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
188 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
189 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
190 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
191 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
192 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
193 INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES,
194 GFC_INTRINSIC_END /* Sentinel */
199 /* Strings for all intrinsic operators. */
200 extern mstring intrinsic_operators[];
203 /* This macro is the number of intrinsic operators that exist.
204 Assumptions are made about the numbering of the interface_op enums. */
205 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
207 /* Arithmetic results. */
209 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
210 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
217 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
218 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
219 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
220 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
221 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
222 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
223 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
224 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
225 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_INQUIRE, ST_INTERFACE,
226 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
227 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
228 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
229 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
230 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
231 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
232 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
233 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
234 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
235 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
236 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
237 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
238 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
239 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE,
245 /* Types of interfaces that we can have. Assignment interfaces are
246 considered to be intrinsic operators. */
249 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
250 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
254 /* Symbol flavors: these are all mutually exclusive.
255 10 elements = 4 bits. */
256 typedef enum sym_flavor
258 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
259 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST
263 /* Procedure types. 7 elements = 3 bits. */
264 typedef enum procedure_type
265 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
266 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
271 typedef enum sym_intent
272 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
277 typedef enum gfc_access
278 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
282 /* Flags to keep track of where an interface came from.
283 4 elements = 2 bits. */
285 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
289 /* Strings for all symbol attributes. We use these for dumping the
290 parse tree, in error messages, and also when reading and writing
291 modules. In symbol.c. */
292 extern const mstring flavors[];
293 extern const mstring procedures[];
294 extern const mstring intents[];
295 extern const mstring access_types[];
296 extern const mstring ifsrc_types[];
298 /* Enumeration of all the generic intrinsic functions. Used by the
299 backend for identification of a function. */
301 enum gfc_generic_isym_id
303 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
304 the backend (eg. KIND). */
338 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
348 GFC_ISYM_DOT_PRODUCT,
436 GFC_ISYM_SET_EXPONENT,
468 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
470 /************************* Structures *****************************/
472 /* Used for keeping things in balanced binary trees. */
473 #define BBT_HEADER(self) int priority; struct self *left, *right
475 /* Symbol attribute structure. */
478 /* Variable attributes. */
479 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
480 optional:1, pointer:1, save:1, target:1,
481 dummy:1, result:1, assign:1, threadprivate:1;
483 unsigned data:1, /* Symbol is named in a DATA statement. */
484 use_assoc:1; /* Symbol has been use-associated. */
486 unsigned in_namelist:1, in_common:1, in_equivalence:1;
487 unsigned function:1, subroutine:1, generic:1;
488 unsigned implicit_type:1; /* Type defined via implicit rules. */
489 unsigned untyped:1; /* No implicit type could be found. */
491 /* Function/subroutine attributes */
492 unsigned sequence:1, elemental:1, pure:1, recursive:1;
493 unsigned unmaskable:1, masked:1, contained:1;
495 /* This is set if the subroutine doesn't return. Currently, this
496 is only possible for intrinsic subroutines. */
499 /* Set if this procedure is an alternate entry point. These procedures
500 don't have any code associated, and the backend will turn them into
501 thunks to the master function. */
504 /* Set if this is the master function for a procedure with multiple
506 unsigned entry_master:1;
508 /* Set if this is the master function for a function with multiple
509 entry points where characteristics of the entry points differ. */
510 unsigned mixed_entry_master:1;
512 /* Set if a function must always be referenced by an explicit interface. */
513 unsigned always_explicit:1;
515 /* Set if the symbol has been referenced in an expression. No further
516 modification of type or type parameters is permitted. */
517 unsigned referenced:1;
519 /* Set if the is the symbol for the main program. This is the least
520 cumbersome way to communicate this function property without
521 strcmp'ing with __MAIN everywhere. */
522 unsigned is_main_program:1;
524 /* Mutually exclusive multibit attributes. */
525 ENUM_BITFIELD (gfc_access) access:2;
526 ENUM_BITFIELD (sym_intent) intent:2;
527 ENUM_BITFIELD (sym_flavor) flavor:4;
528 ENUM_BITFIELD (ifsrc) if_source:2;
530 ENUM_BITFIELD (procedure_type) proc:3;
532 /* Special attributes for Cray pointers, pointees. */
533 unsigned cray_pointer:1, cray_pointee:1;
535 /* The symbol is a derived type with allocatable components, possibly nested.
537 unsigned alloc_comp:1;
542 /* The following three structures are used to identify a location in
545 gfc_file is used to maintain a tree of the source files and how
546 they include each other
548 gfc_linebuf holds a single line of source code and information
549 which file it resides in
551 locus point to the sourceline and the character in the source
555 typedef struct gfc_file
557 struct gfc_file *included_by, *next, *up;
558 int inclusion_line, line;
562 typedef struct gfc_linebuf
564 #ifdef USE_MAPPED_LOCATION
565 source_location location;
569 struct gfc_file *file;
570 struct gfc_linebuf *next;
577 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
585 /* In order for the "gfc" format checking to work correctly, you must
586 have declared a typedef locus first. */
587 #if GCC_VERSION >= 4001
588 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
590 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
594 extern int gfc_suppress_error;
597 /* Character length structures hold the expression that gives the
598 length of a character variable. We avoid putting these into
599 gfc_typespec because doing so prevents us from doing structure
600 copies and forces us to deallocate any typespecs we create, as well
601 as structures that contain typespecs. They also can have multiple
602 character typespecs pointing to them.
604 These structures form a singly linked list within the current
605 namespace and are deallocated with the namespace. It is possible to
606 end up with gfc_charlen structures that have nothing pointing to them. */
608 typedef struct gfc_charlen
610 struct gfc_expr *length;
611 struct gfc_charlen *next;
618 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
620 /* Type specification structure. FIXME: derived and cl could be union??? */
625 struct gfc_symbol *derived;
626 gfc_charlen *cl; /* For character types only. */
630 /* Array specification. */
633 int rank; /* A rank of zero means that a variable is a scalar. */
635 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
637 /* These two fields are used with the Cray Pointer extension. */
638 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
639 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
640 AS_EXPLICIT, but we want to remember that we
646 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
649 /* Components of derived types. */
650 typedef struct gfc_component
655 int pointer, allocatable, dimension;
660 struct gfc_expr *initializer;
661 struct gfc_component *next;
665 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
667 /* Formal argument lists are lists of symbols. */
668 typedef struct gfc_formal_arglist
670 /* Symbol representing the argument at this position in the arglist. */
671 struct gfc_symbol *sym;
672 /* Points to the next formal argument. */
673 struct gfc_formal_arglist *next;
677 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
680 /* The gfc_actual_arglist structure is for actual arguments. */
681 typedef struct gfc_actual_arglist
684 /* Alternate return label when the expr member is null. */
685 struct gfc_st_label *label;
687 /* This is set to the type of an eventual omitted optional
688 argument. This is used to determine if a hidden string length
689 argument has to be added to a function call. */
692 struct gfc_expr *expr;
693 struct gfc_actual_arglist *next;
697 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
700 /* Because a symbol can belong to multiple namelists, they must be
701 linked externally to the symbol itself. */
702 typedef struct gfc_namelist
704 struct gfc_symbol *sym;
705 struct gfc_namelist *next;
709 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
714 OMP_LIST_FIRSTPRIVATE,
715 OMP_LIST_LASTPRIVATE,
716 OMP_LIST_COPYPRIVATE,
720 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
732 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
736 /* Because a symbol can belong to multiple namelists, they must be
737 linked externally to the symbol itself. */
738 typedef struct gfc_omp_clauses
740 struct gfc_expr *if_expr;
741 struct gfc_expr *num_threads;
742 gfc_namelist *lists[OMP_LIST_NUM];
751 struct gfc_expr *chunk_size;
759 bool nowait, ordered;
763 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
766 /* The gfc_st_label structure is a doubly linked list attached to a
767 namespace that records the usage of statement labels within that
769 /* TODO: Make format/statement specifics a union. */
770 typedef struct gfc_st_label
772 BBT_HEADER(gfc_st_label);
776 gfc_sl_type defined, referenced;
778 struct gfc_expr *format;
787 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
788 typedef struct gfc_interface
790 struct gfc_symbol *sym;
792 struct gfc_interface *next;
796 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
799 /* User operator nodes. These are like stripped down symbols. */
804 gfc_interface *operator;
805 struct gfc_namespace *ns;
810 /* Symbol nodes. These are important things. They are what the
811 standard refers to as "entities". The possibly multiple names that
812 refer to the same entity are accomplished by a binary tree of
813 symtree structures that is balanced by the red-black method-- more
814 than one symtree node can point to any given symbol. */
816 typedef struct gfc_symbol
818 const char *name; /* Primary name, before renaming */
819 const char *module; /* Module this symbol came from */
823 symbol_attribute attr;
825 /* The interface member points to the formal argument list if the
826 symbol is a function or subroutine name. If the symbol is a
827 generic name, the generic member points to the list of
830 gfc_interface *generic;
831 gfc_access component_access;
833 gfc_formal_arglist *formal;
834 struct gfc_namespace *formal_ns;
836 struct gfc_expr *value; /* Parameter/Initializer value */
838 struct gfc_symbol *result; /* function result symbol */
839 gfc_component *components; /* Derived type components */
841 /* Defined only for Cray pointees; points to their pointer. */
842 struct gfc_symbol *cp_pointer;
844 struct gfc_symbol *common_next; /* Links for COMMON syms */
846 /* This is in fact a gfc_common_head but it is only used for pointer
847 comparisons to check if symbols are in the same common block. */
848 struct gfc_common_head* common_head;
850 /* Make sure setup code for dummy arguments is generated in the correct
856 gfc_namelist *namelist, *namelist_tail;
858 /* Change management fields. Symbols that might be modified by the
859 current statement have the mark member nonzero and are kept in a
860 singly linked list through the tlink field. Of these symbols,
861 symbols with old_symbol equal to NULL are symbols created within
862 the current statement. Otherwise, old_symbol points to a copy of
865 struct gfc_symbol *old_symbol, *tlink;
866 unsigned mark:1, new:1;
867 /* Nonzero if all equivalences associated with this symbol have been
869 unsigned equiv_built:1;
870 /* Set if this variable is used as an index name in a FORALL. */
871 unsigned forall_index:1;
873 struct gfc_namespace *ns; /* namespace containing this symbol */
880 /* This structure is used to keep track of symbols in common blocks. */
882 typedef struct gfc_common_head
885 char use_assoc, saved, threadprivate;
886 char name[GFC_MAX_SYMBOL_LEN + 1];
887 struct gfc_symbol *head;
891 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
894 /* A list of all the alternate entry points for a procedure. */
896 typedef struct gfc_entry_list
898 /* The symbol for this entry point. */
900 /* The zero-based id of this entry point. */
902 /* The LABEL_EXPR marking this entry point. */
904 /* The nest item in the list. */
905 struct gfc_entry_list *next;
909 #define gfc_get_entry_list() \
910 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
912 /* Within a namespace, symbols are pointed to by symtree nodes that
913 are linked together in a balanced binary tree. There can be
914 several symtrees pointing to the same symbol node via USE
917 typedef struct gfc_symtree
919 BBT_HEADER (gfc_symtree);
924 gfc_symbol *sym; /* Symbol associated with this node */
926 gfc_common_head *common;
933 /* A linked list of derived types in the namespace. */
934 typedef struct gfc_dt_list
936 struct gfc_symbol *derived;
937 struct gfc_dt_list *next;
941 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
944 /* A namespace describes the contents of procedure, module or
946 /* ??? Anything else use these? */
948 typedef struct gfc_namespace
950 /* Tree containing all the symbols in this namespace. */
951 gfc_symtree *sym_root;
952 /* Tree containing all the user-defined operators in the namespace. */
953 gfc_symtree *uop_root;
954 /* Tree containing all the common blocks. */
955 gfc_symtree *common_root;
957 /* If set_flag[letter] is set, an implicit type has been set for letter. */
958 int set_flag[GFC_LETTERS];
959 /* Keeps track of the implicit types associated with the letters. */
960 gfc_typespec default_type[GFC_LETTERS];
962 /* If this is a namespace of a procedure, this points to the procedure. */
963 struct gfc_symbol *proc_name;
964 /* If this is the namespace of a unit which contains executable
965 code, this points to it. */
966 struct gfc_code *code;
968 /* Points to the equivalences set up in this namespace. */
969 struct gfc_equiv *equiv;
971 /* Points to the equivalence groups produced by trans_common. */
972 struct gfc_equiv_list *equiv_lists;
974 gfc_interface *operator[GFC_INTRINSIC_OPS];
976 /* Points to the parent namespace, i.e. the namespace of a module or
977 procedure in which the procedure belonging to this namespace is
978 contained. The parent namespace points to this namespace either
979 directly via CONTAINED, or indirectly via the chain built by
981 struct gfc_namespace *parent;
982 /* CONTAINED points to the first contained namespace. Sibling
983 namespaces are chained via SIBLING. */
984 struct gfc_namespace *contained, *sibling;
986 gfc_common_head blank_common;
987 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
989 gfc_st_label *st_labels;
990 /* This list holds information about all the data initializers in
992 struct gfc_data *data;
994 gfc_charlen *cl_list;
996 int save_all, seen_save, seen_implicit_none;
998 /* Normally we don't need to refcount namespaces. However when we read
999 a module containing a function with multiple entry points, this
1000 will appear as several functions with the same formal namespace. */
1003 /* A list of all alternate entry points to this procedure (or NULL). */
1004 gfc_entry_list *entries;
1006 /* A list of all derived types in this procedure (or NULL). */
1007 gfc_dt_list *derived_types;
1009 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1014 extern gfc_namespace *gfc_current_ns;
1016 /* Global symbols are symbols of global scope. Currently we only use
1017 this to detect collisions already when parsing.
1018 TODO: Extend to verify procedure calls. */
1020 typedef struct gfc_gsymbol
1022 BBT_HEADER(gfc_gsymbol);
1025 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1026 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1033 extern gfc_gsymbol *gfc_gsym_root;
1035 /* Information on interfaces being built. */
1038 interface_type type;
1042 gfc_intrinsic_op op;
1046 extern gfc_interface_info current_interface;
1049 /* Array reference. */
1050 typedef struct gfc_array_ref
1053 int dimen; /* # of components in the reference */
1057 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1058 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1059 *stride[GFC_MAX_DIMENSIONS];
1062 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1063 dimen_type[GFC_MAX_DIMENSIONS];
1065 struct gfc_expr *offset;
1069 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1072 /* Component reference nodes. A variable is stored as an expression
1073 node that points to the base symbol. After that, a singly linked
1074 list of component reference nodes gives the variable's complete
1075 resolution. The array_ref component may be present and comes
1076 before the component component. */
1079 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1082 typedef struct gfc_ref
1088 struct gfc_array_ref ar;
1092 gfc_component *component;
1099 struct gfc_expr *start, *end; /* Substring */
1100 gfc_charlen *length;
1107 struct gfc_ref *next;
1111 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1114 /* Structures representing intrinsic symbols and their arguments lists. */
1115 typedef struct gfc_intrinsic_arg
1117 char name[GFC_MAX_SYMBOL_LEN + 1];
1121 gfc_actual_arglist *actual;
1123 struct gfc_intrinsic_arg *next;
1129 /* Specifies the various kinds of check functions used to verify the
1130 argument lists of intrinsic functions. fX with X an integer refer
1131 to check functions of intrinsics with X arguments. f1m is used for
1132 the MAX and MIN intrinsics which can have an arbitrary number of
1133 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1134 these have special semantics. */
1139 try (*f1)(struct gfc_expr *);
1140 try (*f1m)(gfc_actual_arglist *);
1141 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1142 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1143 try (*f3ml)(gfc_actual_arglist *);
1144 try (*f3red)(gfc_actual_arglist *);
1145 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1147 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1148 struct gfc_expr *, struct gfc_expr *);
1152 /* Like gfc_check_f, these specify the type of the simplification
1153 function associated with an intrinsic. The fX are just like in
1154 gfc_check_f. cc is used for type conversion functions. */
1158 struct gfc_expr *(*f0)(void);
1159 struct gfc_expr *(*f1)(struct gfc_expr *);
1160 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1161 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1163 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1164 struct gfc_expr *, struct gfc_expr *);
1165 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1166 struct gfc_expr *, struct gfc_expr *,
1168 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1172 /* Again like gfc_check_f, these specify the type of the resolution
1173 function associated with an intrinsic. The fX are just like in
1174 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1179 void (*f0)(struct gfc_expr *);
1180 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1181 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1182 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1183 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1185 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1186 struct gfc_expr *, struct gfc_expr *);
1187 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1188 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1189 void (*s1)(struct gfc_code *);
1194 typedef struct gfc_intrinsic_sym
1196 const char *name, *lib_name;
1197 gfc_intrinsic_arg *formal;
1199 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1201 gfc_simplify_f simplify;
1203 gfc_resolve_f resolve;
1204 struct gfc_intrinsic_sym *specific_head, *next;
1205 gfc_generic_isym_id generic_id;
1211 /* Expression nodes. The expression node types deserve explanations,
1212 since the last couple can be easily misconstrued:
1214 EXPR_OP Operator node pointing to one or two other nodes
1215 EXPR_FUNCTION Function call, symbol points to function's name
1216 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1217 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1218 which expresses structure, array and substring refs.
1219 EXPR_NULL The NULL pointer value (which also has a basic type).
1220 EXPR_SUBSTRING A substring of a constant string
1221 EXPR_STRUCTURE A structure constructor
1222 EXPR_ARRAY An array constructor. */
1226 #define GFC_RND_MODE GMP_RNDN
1227 #undef GFC_MPFR_TOO_OLD
1228 #if MPFR_VERSION_MAJOR < 2 || (MPFR_VERSION_MAJOR == 2 && MPFR_VERSION_MINOR < 2)
1229 #define GFC_MPFR_TOO_OLD 1
1232 typedef struct gfc_expr
1236 gfc_typespec ts; /* These two refer to the overall expression */
1239 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1241 /* Nonnull for functions and structure constructors */
1242 gfc_symtree *symtree;
1248 /* True if it is converted from Hollerith constant. */
1249 unsigned int from_H : 1;
1250 /* True if the expression is a call to a function that returns an array,
1251 and if we have decided not to allocate temporary data for that array. */
1252 unsigned int inline_noncopying_intrinsic : 1;
1269 gfc_intrinsic_op operator;
1271 struct gfc_expr *op1, *op2;
1277 gfc_actual_arglist *actual;
1278 const char *name; /* Points to the ultimate name of the function */
1279 gfc_intrinsic_sym *isym;
1291 struct gfc_constructor *constructor;
1299 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1301 /* Structures for information associated with different kinds of
1302 numbers. The first set of integer parameters define all there is
1303 to know about a particular kind. The rest of the elements are
1304 computed from the first elements. */
1308 /* Values really representable by the target. */
1309 mpz_t huge, pedantic_min_int, min_int;
1311 int kind, radix, digits, bit_size, range;
1313 /* True if the C type of the given name maps to this precision.
1314 Note that more than one bit can be set. */
1315 unsigned int c_char : 1;
1316 unsigned int c_short : 1;
1317 unsigned int c_int : 1;
1318 unsigned int c_long : 1;
1319 unsigned int c_long_long : 1;
1323 extern gfc_integer_info gfc_integer_kinds[];
1330 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1331 unsigned int c_bool : 1;
1335 extern gfc_logical_info gfc_logical_kinds[];
1340 mpfr_t epsilon, huge, tiny, subnormal;
1341 int kind, radix, digits, min_exponent, max_exponent;
1342 int range, precision;
1344 /* The precision of the type as reported by GET_MODE_PRECISION. */
1347 /* True if the C type of the given name maps to this precision.
1348 Note that more than one bit can be set. */
1349 unsigned int c_float : 1;
1350 unsigned int c_double : 1;
1351 unsigned int c_long_double : 1;
1355 extern gfc_real_info gfc_real_kinds[];
1358 /* Equivalence structures. Equivalent lvalues are linked along the
1359 *eq pointer, equivalence sets are strung along the *next node. */
1360 typedef struct gfc_equiv
1362 struct gfc_equiv *next, *eq;
1369 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1371 /* Holds a single equivalence member after processing. */
1372 typedef struct gfc_equiv_info
1375 HOST_WIDE_INT offset;
1376 HOST_WIDE_INT length;
1377 struct gfc_equiv_info *next;
1380 /* Holds equivalence groups, after they have been processed. */
1381 typedef struct gfc_equiv_list
1383 gfc_equiv_info *equiv;
1384 struct gfc_equiv_list *next;
1387 /* gfc_case stores the selector list of a case statement. The *low
1388 and *high pointers can point to the same expression in the case of
1389 a single value. If *high is NULL, the selection is from *low
1390 upwards, if *low is NULL the selection is *high downwards.
1392 This structure has separate fields to allow single and double linked
1393 lists of CASEs at the same time. The singe linked list along the NEXT
1394 field is a list of cases for a single CASE label. The double linked
1395 list along the LEFT/RIGHT fields is used to detect overlap and to
1396 build a table of the cases for SELECT constructs with a CHARACTER
1399 typedef struct gfc_case
1401 /* Where we saw this case. */
1405 /* Case range values. If (low == high), it's a single value. If one of
1406 the labels is NULL, it's an unbounded case. If both are NULL, this
1407 represents the default case. */
1408 gfc_expr *low, *high;
1410 /* Next case label in the list of cases for a single CASE label. */
1411 struct gfc_case *next;
1413 /* Used for detecting overlap, and for code generation. */
1414 struct gfc_case *left, *right;
1416 /* True if this case label can never be matched. */
1421 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1426 gfc_expr *var, *start, *end, *step;
1430 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1433 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1435 typedef struct gfc_alloc
1438 struct gfc_alloc *next;
1442 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1447 gfc_expr *unit, *file, *status, *access, *form, *recl,
1448 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1456 gfc_expr *unit, *status, *iostat, *iomsg;
1464 gfc_expr *unit, *iostat, *iomsg;
1472 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1473 *name, *access, *sequential, *direct, *form, *formatted,
1474 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1475 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1485 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1487 gfc_symbol *namelist;
1488 /* A format_label of `format_asterisk' indicates the "*" format */
1489 gfc_st_label *format_label;
1490 gfc_st_label *err, *end, *eor;
1492 locus eor_where, end_where, err_where;
1497 typedef struct gfc_forall_iterator
1499 gfc_expr *var, *start, *end, *stride;
1500 struct gfc_forall_iterator *next;
1502 gfc_forall_iterator;
1505 /* Executable statements that fill gfc_code structures. */
1508 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1509 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1510 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1511 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1512 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1513 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1514 EXEC_OPEN, EXEC_CLOSE,
1515 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1516 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1517 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1518 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1519 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1520 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1521 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1526 typedef struct gfc_code
1530 struct gfc_code *block, *next;
1533 gfc_st_label *here, *label, *label2, *label3;
1534 gfc_symtree *symtree;
1535 gfc_expr *expr, *expr2;
1536 /* A name isn't sufficient to identify a subroutine, we need the actual
1537 symbol for the interface definition.
1538 const char *sub_name; */
1539 gfc_symbol *resolved_sym;
1543 gfc_actual_arglist *actual;
1544 gfc_case *case_list;
1545 gfc_iterator *iterator;
1546 gfc_alloc *alloc_list;
1549 gfc_filepos *filepos;
1550 gfc_inquire *inquire;
1552 gfc_forall_iterator *forall_iterator;
1553 struct gfc_code *whichloop;
1555 gfc_entry_list *entry;
1556 gfc_omp_clauses *omp_clauses;
1557 const char *omp_name;
1558 gfc_namelist *omp_namelist;
1561 ext; /* Points to additional structures required by statement */
1563 /* Backend_decl is used for cycle and break labels in do loops, and
1564 probably for other constructs as well, once we translate them. */
1570 /* Storage for DATA statements. */
1571 typedef struct gfc_data_variable
1575 struct gfc_data_variable *list, *next;
1580 typedef struct gfc_data_value
1582 unsigned int repeat;
1584 struct gfc_data_value *next;
1589 typedef struct gfc_data
1591 gfc_data_variable *var;
1592 gfc_data_value *value;
1595 struct gfc_data *next;
1599 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1600 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1601 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1604 /* Structure for holding compile options */
1608 gfc_source_form source_form;
1609 /* When fixed_line_length or free_line_length are 0, the whole line is used.
1611 Default is -1, the maximum line length mandated by the respective source
1613 for FORM_FREE GFC_MAX_LINE (132)
1616 If fixed_line_length or free_line_length is not 0 nor -1 then the user has
1617 requested a specific line-length.
1619 If the user requests a fixed_line_length <7 then gfc_init_options()
1620 emits a fatal error. */
1621 int fixed_line_length; /* maximum line length in fixed-form. */
1622 int free_line_length; /* maximum line length in free-form. */
1623 int max_continue_fixed;
1624 int max_continue_free;
1625 int max_identifier_length;
1630 int warn_conversion;
1631 int warn_implicit_interface;
1632 int warn_line_truncation;
1633 int warn_surprising;
1637 int flag_all_intrinsics;
1638 int flag_default_double;
1639 int flag_default_integer;
1640 int flag_default_real;
1642 int flag_underscoring;
1643 int flag_second_underscore;
1644 int flag_implicit_none;
1645 int flag_max_stack_var_size;
1646 int flag_module_access_private;
1647 int flag_no_backend;
1648 int flag_range_check;
1649 int flag_pack_derived;
1650 int flag_repack_arrays;
1651 int flag_preprocessed;
1655 int flag_external_blas;
1656 int blas_matmul_limit;
1657 int flag_cray_pointer;
1667 int warn_nonstd_intrinsics;
1674 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 *);
1720 void gfc_release_include_path (void);
1721 FILE *gfc_open_included_file (const char *, bool);
1723 int gfc_at_end (void);
1724 int gfc_at_eof (void);
1725 int gfc_at_bol (void);
1726 int gfc_at_eol (void);
1727 void gfc_advance_line (void);
1728 int gfc_check_include (void);
1730 void gfc_skip_comments (void);
1731 int gfc_next_char_literal (int);
1732 int gfc_next_char (void);
1733 int gfc_peek_char (void);
1734 void gfc_error_recovery (void);
1735 void gfc_gobble_whitespace (void);
1736 try gfc_new_file (void);
1737 const char * gfc_read_orig_filename (const char *, const char **);
1739 extern gfc_source_form gfc_current_form;
1740 extern const char *gfc_source_file;
1741 extern locus gfc_current_locus;
1744 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1745 void gfc_free (void *);
1746 int gfc_terminal_width(void);
1747 void gfc_clear_ts (gfc_typespec *);
1748 FILE *gfc_open_file (const char *);
1749 const char *gfc_basic_typename (bt);
1750 const char *gfc_typename (gfc_typespec *);
1752 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1753 "=" : gfc_code2string (intrinsic_operators, OP))
1755 const char *gfc_code2string (const mstring *, int);
1756 int gfc_string2code (const mstring *, const char *);
1757 const char *gfc_intent_string (sym_intent);
1759 void gfc_init_1 (void);
1760 void gfc_init_2 (void);
1761 void gfc_done_1 (void);
1762 void gfc_done_2 (void);
1765 unsigned int gfc_init_options (unsigned int, const char **);
1766 int gfc_handle_option (size_t, const char *, int);
1767 bool gfc_post_options (const char **);
1770 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1774 typedef struct gfc_error_buf
1777 size_t allocated, index;
1781 void gfc_error_init_1 (void);
1782 void gfc_buffer_error (int);
1784 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1785 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1786 void gfc_clear_warning (void);
1787 void gfc_warning_check (void);
1789 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1790 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1791 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1792 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1793 void gfc_clear_error (void);
1794 int gfc_error_check (void);
1796 notification gfc_notification_std (int);
1797 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1799 /* A general purpose syntax error. */
1800 #define gfc_syntax_error(ST) \
1801 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1803 void gfc_push_error (gfc_error_buf *);
1804 void gfc_pop_error (gfc_error_buf *);
1805 void gfc_free_error (gfc_error_buf *);
1807 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1808 void gfc_status_char (char);
1810 void gfc_get_errors (int *, int *);
1813 void gfc_arith_init_1 (void);
1814 void gfc_arith_done_1 (void);
1815 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1816 arith gfc_check_integer_range (mpz_t p, int kind);
1819 int gfc_validate_kind (bt, int, bool);
1820 extern int gfc_index_integer_kind;
1821 extern int gfc_default_integer_kind;
1822 extern int gfc_max_integer_kind;
1823 extern int gfc_default_real_kind;
1824 extern int gfc_default_double_kind;
1825 extern int gfc_default_character_kind;
1826 extern int gfc_default_logical_kind;
1827 extern int gfc_default_complex_kind;
1828 extern int gfc_c_int_kind;
1829 extern int gfc_intio_kind;
1832 void gfc_clear_new_implicit (void);
1833 try gfc_add_new_implicit_range (int, int);
1834 try gfc_merge_new_implicit (gfc_typespec *);
1835 void gfc_set_implicit_none (void);
1837 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1838 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1840 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1841 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1843 void gfc_set_sym_referenced (gfc_symbol * sym);
1845 try gfc_add_attribute (symbol_attribute *, locus *, unsigned int);
1846 try gfc_add_allocatable (symbol_attribute *, locus *);
1847 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1848 try gfc_add_external (symbol_attribute *, locus *);
1849 try gfc_add_intrinsic (symbol_attribute *, locus *);
1850 try gfc_add_optional (symbol_attribute *, locus *);
1851 try gfc_add_pointer (symbol_attribute *, locus *);
1852 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1853 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1854 try gfc_mod_pointee_as (gfc_array_spec *as);
1855 try gfc_add_result (symbol_attribute *, const char *, locus *);
1856 try gfc_add_save (symbol_attribute *, const char *, locus *);
1857 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
1858 try gfc_add_saved_common (symbol_attribute *, locus *);
1859 try gfc_add_target (symbol_attribute *, locus *);
1860 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1861 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1862 try gfc_add_common (symbol_attribute *, locus *);
1863 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1864 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1865 try gfc_add_data (symbol_attribute *, const char *, locus *);
1866 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1867 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1868 try gfc_add_elemental (symbol_attribute *, locus *);
1869 try gfc_add_pure (symbol_attribute *, locus *);
1870 try gfc_add_recursive (symbol_attribute *, locus *);
1871 try gfc_add_function (symbol_attribute *, const char *, locus *);
1872 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1874 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1875 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1876 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1877 try gfc_add_procedure (symbol_attribute *, procedure_type,
1878 const char *, locus *);
1879 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1880 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1881 gfc_formal_arglist *, locus *);
1882 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1884 void gfc_clear_attr (symbol_attribute *);
1885 try gfc_missing_attr (symbol_attribute *, locus *);
1886 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1888 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1889 gfc_symbol *gfc_use_derived (gfc_symbol *);
1890 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1891 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1893 gfc_st_label *gfc_get_st_label (int);
1894 void gfc_free_st_label (gfc_st_label *);
1895 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1896 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1898 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1899 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1900 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1901 gfc_user_op *gfc_get_uop (const char *);
1902 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1903 void gfc_free_symbol (gfc_symbol *);
1904 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1905 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1906 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1907 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1908 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1909 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1910 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1912 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1914 void gfc_undo_symbols (void);
1915 void gfc_commit_symbols (void);
1916 void gfc_commit_symbol (gfc_symbol * sym);
1917 void gfc_free_namespace (gfc_namespace *);
1919 void gfc_symbol_init_2 (void);
1920 void gfc_symbol_done_2 (void);
1922 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1923 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1924 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1925 void gfc_save_all (gfc_namespace *);
1927 void gfc_symbol_state (void);
1929 gfc_gsymbol *gfc_get_gsymbol (const char *);
1930 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1933 extern int gfc_init_expr;
1935 /* Given a symbol that we have decided is intrinsic, mark it as such
1936 by placing it into a special module that is otherwise impossible to
1939 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1941 void gfc_intrinsic_init_1 (void);
1942 void gfc_intrinsic_done_1 (void);
1944 char gfc_type_letter (bt);
1945 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1946 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1947 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1948 int gfc_generic_intrinsic (const char *);
1949 int gfc_specific_intrinsic (const char *);
1950 int gfc_intrinsic_name (const char *, int);
1951 int gfc_intrinsic_actual_ok (const char *, const bool);
1952 gfc_intrinsic_sym *gfc_find_function (const char *);
1954 match gfc_intrinsic_func_interface (gfc_expr *, int);
1955 match gfc_intrinsic_sub_interface (gfc_code *, int);
1958 void gfc_simplify_init_1 (void);
1960 /* match.c -- FIXME */
1961 void gfc_free_iterator (gfc_iterator *, int);
1962 void gfc_free_forall_iterator (gfc_forall_iterator *);
1963 void gfc_free_alloc_list (gfc_alloc *);
1964 void gfc_free_namelist (gfc_namelist *);
1965 void gfc_free_equiv (gfc_equiv *);
1966 void gfc_free_data (gfc_data *);
1967 void gfc_free_case_list (gfc_case *);
1969 /* matchexp.c -- FIXME too? */
1970 gfc_expr *gfc_get_parentheses (gfc_expr *);
1973 void gfc_free_omp_clauses (gfc_omp_clauses *);
1974 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
1975 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
1976 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
1977 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
1980 void gfc_free_actual_arglist (gfc_actual_arglist *);
1981 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1982 const char *gfc_extract_int (gfc_expr *, int *);
1983 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
1985 gfc_expr *gfc_build_conversion (gfc_expr *);
1986 void gfc_free_ref_list (gfc_ref *);
1987 void gfc_type_convert_binary (gfc_expr *);
1988 int gfc_is_constant_expr (gfc_expr *);
1989 try gfc_simplify_expr (gfc_expr *, int);
1990 int gfc_has_vector_index (gfc_expr *);
1992 gfc_expr *gfc_get_expr (void);
1993 void gfc_free_expr (gfc_expr *);
1994 void gfc_replace_expr (gfc_expr *, gfc_expr *);
1995 gfc_expr *gfc_int_expr (int);
1996 gfc_expr *gfc_logical_expr (int, locus *);
1997 mpz_t *gfc_copy_shape (mpz_t *, int);
1998 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
1999 gfc_expr *gfc_copy_expr (gfc_expr *);
2001 try gfc_specification_expr (gfc_expr *);
2003 int gfc_numeric_ts (gfc_typespec *);
2004 int gfc_kind_max (gfc_expr *, gfc_expr *);
2006 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2007 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2008 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2009 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2011 gfc_expr *gfc_default_initializer (gfc_typespec *);
2012 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2014 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
2017 extern gfc_code new_st;
2019 void gfc_clear_new_st (void);
2020 gfc_code *gfc_get_code (void);
2021 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2022 void gfc_free_statement (gfc_code *);
2023 void gfc_free_statements (gfc_code *);
2026 try gfc_resolve_expr (gfc_expr *);
2027 void gfc_resolve (gfc_namespace *);
2028 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2029 int gfc_impure_variable (gfc_symbol *);
2030 int gfc_pure (gfc_symbol *);
2031 int gfc_elemental (gfc_symbol *);
2032 try gfc_resolve_iterator (gfc_iterator *, bool);
2033 try gfc_resolve_index (gfc_expr *, int);
2034 try gfc_resolve_dim_arg (gfc_expr *);
2035 int gfc_is_formal_arg (void);
2038 void gfc_free_array_spec (gfc_array_spec *);
2039 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2041 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2042 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2043 try gfc_resolve_array_spec (gfc_array_spec *, int);
2045 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2047 gfc_expr *gfc_start_constructor (bt, int, locus *);
2048 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2049 void gfc_free_constructor (gfc_constructor *);
2050 void gfc_simplify_iterator_var (gfc_expr *);
2051 try gfc_expand_constructor (gfc_expr *);
2052 int gfc_constant_ac (gfc_expr *);
2053 int gfc_expanded_ac (gfc_expr *);
2054 void gfc_resolve_character_array_constructor (gfc_expr *);
2055 try gfc_resolve_array_constructor (gfc_expr *);
2056 try gfc_check_constructor_type (gfc_expr *);
2057 try gfc_check_iter_variable (gfc_expr *);
2058 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2059 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
2060 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2061 try gfc_array_size (gfc_expr *, mpz_t *);
2062 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2063 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2064 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2065 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2066 gfc_constructor *gfc_get_constructor (void);
2067 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
2068 try spec_size (gfc_array_spec *, mpz_t *);
2069 int gfc_is_compile_time_shape (gfc_array_spec *);
2071 /* interface.c -- FIXME: some of these should be in symbol.c */
2072 void gfc_free_interface (gfc_interface *);
2073 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2074 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2075 void gfc_check_interfaces (gfc_namespace *);
2076 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2077 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2078 gfc_actual_arglist **);
2079 try gfc_extend_expr (gfc_expr *);
2080 void gfc_free_formal_arglist (gfc_formal_arglist *);
2081 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2082 try gfc_add_interface (gfc_symbol * sym);
2085 extern gfc_st_label format_asterisk;
2087 void gfc_free_open (gfc_open *);
2088 try gfc_resolve_open (gfc_open *);
2089 void gfc_free_close (gfc_close *);
2090 try gfc_resolve_close (gfc_close *);
2091 void gfc_free_filepos (gfc_filepos *);
2092 try gfc_resolve_filepos (gfc_filepos *);
2093 void gfc_free_inquire (gfc_inquire *);
2094 try gfc_resolve_inquire (gfc_inquire *);
2095 void gfc_free_dt (gfc_dt *);
2096 try gfc_resolve_dt (gfc_dt *);
2099 void gfc_module_init_2 (void);
2100 void gfc_module_done_2 (void);
2101 void gfc_dump_module (const char *, int);
2102 bool gfc_check_access (gfc_access, gfc_access);
2105 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2106 symbol_attribute gfc_expr_attr (gfc_expr *);
2109 void gfc_generate_code (gfc_namespace *);
2110 void gfc_generate_module_code (gfc_namespace *);
2113 typedef int (*compare_fn) (void *, void *);
2114 void gfc_insert_bbt (void *, void *, compare_fn);
2115 void gfc_delete_bbt (void *, void *, compare_fn);
2117 /* dump-parse-tree.c */
2118 void gfc_show_actual_arglist (gfc_actual_arglist *);
2119 void gfc_show_array_ref (gfc_array_ref *);
2120 void gfc_show_array_spec (gfc_array_spec *);
2121 void gfc_show_attr (symbol_attribute *);
2122 void gfc_show_code (int, gfc_code *);
2123 void gfc_show_components (gfc_symbol *);
2124 void gfc_show_constructor (gfc_constructor *);
2125 void gfc_show_equiv (gfc_equiv *);
2126 void gfc_show_expr (gfc_expr *);
2127 void gfc_show_namelist (gfc_namelist *);
2128 void gfc_show_namespace (gfc_namespace *);
2129 void gfc_show_ref (gfc_ref *);
2130 void gfc_show_symbol (gfc_symbol *);
2131 void gfc_show_typespec (gfc_typespec *);
2134 try gfc_parse_file (void);
2135 void global_used (gfc_gsymbol *, locus *);
2138 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2140 #endif /* GCC_GFORTRAN_H */