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, volatile_: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
1228 typedef struct gfc_expr
1232 gfc_typespec ts; /* These two refer to the overall expression */
1235 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1237 /* Nonnull for functions and structure constructors */
1238 gfc_symtree *symtree;
1244 /* True if it is converted from Hollerith constant. */
1245 unsigned int from_H : 1;
1246 /* True if the expression is a call to a function that returns an array,
1247 and if we have decided not to allocate temporary data for that array. */
1248 unsigned int inline_noncopying_intrinsic : 1;
1265 gfc_intrinsic_op operator;
1267 struct gfc_expr *op1, *op2;
1273 gfc_actual_arglist *actual;
1274 const char *name; /* Points to the ultimate name of the function */
1275 gfc_intrinsic_sym *isym;
1287 struct gfc_constructor *constructor;
1295 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1297 /* Structures for information associated with different kinds of
1298 numbers. The first set of integer parameters define all there is
1299 to know about a particular kind. The rest of the elements are
1300 computed from the first elements. */
1304 /* Values really representable by the target. */
1305 mpz_t huge, pedantic_min_int, min_int;
1307 int kind, radix, digits, bit_size, range;
1309 /* True if the C type of the given name maps to this precision.
1310 Note that more than one bit can be set. */
1311 unsigned int c_char : 1;
1312 unsigned int c_short : 1;
1313 unsigned int c_int : 1;
1314 unsigned int c_long : 1;
1315 unsigned int c_long_long : 1;
1319 extern gfc_integer_info gfc_integer_kinds[];
1326 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1327 unsigned int c_bool : 1;
1331 extern gfc_logical_info gfc_logical_kinds[];
1336 mpfr_t epsilon, huge, tiny, subnormal;
1337 int kind, radix, digits, min_exponent, max_exponent;
1338 int range, precision;
1340 /* The precision of the type as reported by GET_MODE_PRECISION. */
1343 /* True if the C type of the given name maps to this precision.
1344 Note that more than one bit can be set. */
1345 unsigned int c_float : 1;
1346 unsigned int c_double : 1;
1347 unsigned int c_long_double : 1;
1351 extern gfc_real_info gfc_real_kinds[];
1354 /* Equivalence structures. Equivalent lvalues are linked along the
1355 *eq pointer, equivalence sets are strung along the *next node. */
1356 typedef struct gfc_equiv
1358 struct gfc_equiv *next, *eq;
1365 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1367 /* Holds a single equivalence member after processing. */
1368 typedef struct gfc_equiv_info
1371 HOST_WIDE_INT offset;
1372 HOST_WIDE_INT length;
1373 struct gfc_equiv_info *next;
1376 /* Holds equivalence groups, after they have been processed. */
1377 typedef struct gfc_equiv_list
1379 gfc_equiv_info *equiv;
1380 struct gfc_equiv_list *next;
1383 /* gfc_case stores the selector list of a case statement. The *low
1384 and *high pointers can point to the same expression in the case of
1385 a single value. If *high is NULL, the selection is from *low
1386 upwards, if *low is NULL the selection is *high downwards.
1388 This structure has separate fields to allow single and double linked
1389 lists of CASEs at the same time. The singe linked list along the NEXT
1390 field is a list of cases for a single CASE label. The double linked
1391 list along the LEFT/RIGHT fields is used to detect overlap and to
1392 build a table of the cases for SELECT constructs with a CHARACTER
1395 typedef struct gfc_case
1397 /* Where we saw this case. */
1401 /* Case range values. If (low == high), it's a single value. If one of
1402 the labels is NULL, it's an unbounded case. If both are NULL, this
1403 represents the default case. */
1404 gfc_expr *low, *high;
1406 /* Next case label in the list of cases for a single CASE label. */
1407 struct gfc_case *next;
1409 /* Used for detecting overlap, and for code generation. */
1410 struct gfc_case *left, *right;
1412 /* True if this case label can never be matched. */
1417 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1422 gfc_expr *var, *start, *end, *step;
1426 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1429 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1431 typedef struct gfc_alloc
1434 struct gfc_alloc *next;
1438 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1443 gfc_expr *unit, *file, *status, *access, *form, *recl,
1444 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1452 gfc_expr *unit, *status, *iostat, *iomsg;
1460 gfc_expr *unit, *iostat, *iomsg;
1468 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1469 *name, *access, *sequential, *direct, *form, *formatted,
1470 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1471 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1481 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1483 gfc_symbol *namelist;
1484 /* A format_label of `format_asterisk' indicates the "*" format */
1485 gfc_st_label *format_label;
1486 gfc_st_label *err, *end, *eor;
1488 locus eor_where, end_where, err_where;
1493 typedef struct gfc_forall_iterator
1495 gfc_expr *var, *start, *end, *stride;
1496 struct gfc_forall_iterator *next;
1498 gfc_forall_iterator;
1501 /* Executable statements that fill gfc_code structures. */
1504 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1505 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1506 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1507 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1508 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1509 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1510 EXEC_OPEN, EXEC_CLOSE,
1511 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1512 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1513 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1514 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1515 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1516 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1517 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1522 typedef struct gfc_code
1526 struct gfc_code *block, *next;
1529 gfc_st_label *here, *label, *label2, *label3;
1530 gfc_symtree *symtree;
1531 gfc_expr *expr, *expr2;
1532 /* A name isn't sufficient to identify a subroutine, we need the actual
1533 symbol for the interface definition.
1534 const char *sub_name; */
1535 gfc_symbol *resolved_sym;
1539 gfc_actual_arglist *actual;
1540 gfc_case *case_list;
1541 gfc_iterator *iterator;
1542 gfc_alloc *alloc_list;
1545 gfc_filepos *filepos;
1546 gfc_inquire *inquire;
1548 gfc_forall_iterator *forall_iterator;
1549 struct gfc_code *whichloop;
1551 gfc_entry_list *entry;
1552 gfc_omp_clauses *omp_clauses;
1553 const char *omp_name;
1554 gfc_namelist *omp_namelist;
1557 ext; /* Points to additional structures required by statement */
1559 /* Backend_decl is used for cycle and break labels in do loops, and
1560 probably for other constructs as well, once we translate them. */
1566 /* Storage for DATA statements. */
1567 typedef struct gfc_data_variable
1571 struct gfc_data_variable *list, *next;
1576 typedef struct gfc_data_value
1578 unsigned int repeat;
1580 struct gfc_data_value *next;
1585 typedef struct gfc_data
1587 gfc_data_variable *var;
1588 gfc_data_value *value;
1591 struct gfc_data *next;
1595 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1596 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1597 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1600 /* Structure for holding compile options */
1604 gfc_source_form source_form;
1605 /* When fixed_line_length or free_line_length are 0, the whole line is used.
1607 Default is -1, the maximum line length mandated by the respective source
1609 for FORM_FREE GFC_MAX_LINE (132)
1612 If fixed_line_length or free_line_length is not 0 nor -1 then the user has
1613 requested a specific line-length.
1615 If the user requests a fixed_line_length <7 then gfc_init_options()
1616 emits a fatal error. */
1617 int fixed_line_length; /* maximum line length in fixed-form. */
1618 int free_line_length; /* maximum line length in free-form. */
1619 int max_continue_fixed;
1620 int max_continue_free;
1621 int max_identifier_length;
1626 int warn_conversion;
1627 int warn_implicit_interface;
1628 int warn_line_truncation;
1629 int warn_surprising;
1633 int flag_all_intrinsics;
1634 int flag_default_double;
1635 int flag_default_integer;
1636 int flag_default_real;
1638 int flag_underscoring;
1639 int flag_second_underscore;
1640 int flag_implicit_none;
1641 int flag_max_stack_var_size;
1642 int flag_module_access_private;
1643 int flag_no_backend;
1644 int flag_range_check;
1645 int flag_pack_derived;
1646 int flag_repack_arrays;
1647 int flag_preprocessed;
1651 int flag_external_blas;
1652 int blas_matmul_limit;
1653 int flag_cray_pointer;
1661 int warn_nonstd_intrinsics;
1668 extern gfc_option_t gfc_option;
1671 /* Constructor nodes for array and structure constructors. */
1672 typedef struct gfc_constructor
1675 gfc_iterator *iterator;
1677 struct gfc_constructor *next;
1680 mpz_t offset; /* Record the offset of array element which appears in
1681 data statement like "data a(5)/4/". */
1682 gfc_component *component; /* Record the component being initialized. */
1685 mpz_t repeat; /* Record the repeat number of initial values in data
1686 statement like "data a/5*10/". */
1691 typedef struct iterator_stack
1693 gfc_symtree *variable;
1695 struct iterator_stack *prev;
1698 extern iterator_stack *iter_stack;
1700 /************************ Function prototypes *************************/
1703 void gfc_formalize_init_value (gfc_symbol *);
1704 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1705 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1706 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1707 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1710 void gfc_scanner_done_1 (void);
1711 void gfc_scanner_init_1 (void);
1713 void gfc_add_include_path (const char *);
1714 void gfc_release_include_path (void);
1715 FILE *gfc_open_included_file (const char *, bool);
1717 int gfc_at_end (void);
1718 int gfc_at_eof (void);
1719 int gfc_at_bol (void);
1720 int gfc_at_eol (void);
1721 void gfc_advance_line (void);
1722 int gfc_check_include (void);
1724 void gfc_skip_comments (void);
1725 int gfc_next_char_literal (int);
1726 int gfc_next_char (void);
1727 int gfc_peek_char (void);
1728 void gfc_error_recovery (void);
1729 void gfc_gobble_whitespace (void);
1730 try gfc_new_file (void);
1731 const char * gfc_read_orig_filename (const char *, const char **);
1733 extern gfc_source_form gfc_current_form;
1734 extern const char *gfc_source_file;
1735 extern locus gfc_current_locus;
1738 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1739 void gfc_free (void *);
1740 int gfc_terminal_width(void);
1741 void gfc_clear_ts (gfc_typespec *);
1742 FILE *gfc_open_file (const char *);
1743 const char *gfc_basic_typename (bt);
1744 const char *gfc_typename (gfc_typespec *);
1746 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1747 "=" : gfc_code2string (intrinsic_operators, OP))
1749 const char *gfc_code2string (const mstring *, int);
1750 int gfc_string2code (const mstring *, const char *);
1751 const char *gfc_intent_string (sym_intent);
1753 void gfc_init_1 (void);
1754 void gfc_init_2 (void);
1755 void gfc_done_1 (void);
1756 void gfc_done_2 (void);
1759 unsigned int gfc_init_options (unsigned int, const char **);
1760 int gfc_handle_option (size_t, const char *, int);
1761 bool gfc_post_options (const char **);
1764 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1768 typedef struct gfc_error_buf
1771 size_t allocated, index;
1775 void gfc_error_init_1 (void);
1776 void gfc_buffer_error (int);
1778 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1779 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1780 void gfc_clear_warning (void);
1781 void gfc_warning_check (void);
1783 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1784 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1785 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1786 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1787 void gfc_clear_error (void);
1788 int gfc_error_check (void);
1789 int gfc_error_flag_test (void);
1791 notification gfc_notification_std (int);
1792 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1794 /* A general purpose syntax error. */
1795 #define gfc_syntax_error(ST) \
1796 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1798 void gfc_push_error (gfc_error_buf *);
1799 void gfc_pop_error (gfc_error_buf *);
1800 void gfc_free_error (gfc_error_buf *);
1802 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1803 void gfc_status_char (char);
1805 void gfc_get_errors (int *, int *);
1808 void gfc_arith_init_1 (void);
1809 void gfc_arith_done_1 (void);
1810 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1811 arith gfc_check_integer_range (mpz_t p, int kind);
1814 int gfc_validate_kind (bt, int, bool);
1815 extern int gfc_index_integer_kind;
1816 extern int gfc_default_integer_kind;
1817 extern int gfc_max_integer_kind;
1818 extern int gfc_default_real_kind;
1819 extern int gfc_default_double_kind;
1820 extern int gfc_default_character_kind;
1821 extern int gfc_default_logical_kind;
1822 extern int gfc_default_complex_kind;
1823 extern int gfc_c_int_kind;
1824 extern int gfc_intio_kind;
1827 void gfc_clear_new_implicit (void);
1828 try gfc_add_new_implicit_range (int, int);
1829 try gfc_merge_new_implicit (gfc_typespec *);
1830 void gfc_set_implicit_none (void);
1832 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1833 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1835 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1836 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1838 void gfc_set_sym_referenced (gfc_symbol * sym);
1840 try gfc_add_attribute (symbol_attribute *, locus *, unsigned int);
1841 try gfc_add_allocatable (symbol_attribute *, locus *);
1842 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1843 try gfc_add_external (symbol_attribute *, locus *);
1844 try gfc_add_intrinsic (symbol_attribute *, locus *);
1845 try gfc_add_optional (symbol_attribute *, locus *);
1846 try gfc_add_pointer (symbol_attribute *, locus *);
1847 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1848 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1849 try gfc_mod_pointee_as (gfc_array_spec *as);
1850 try gfc_add_result (symbol_attribute *, const char *, locus *);
1851 try gfc_add_save (symbol_attribute *, const char *, locus *);
1852 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
1853 try gfc_add_saved_common (symbol_attribute *, locus *);
1854 try gfc_add_target (symbol_attribute *, locus *);
1855 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1856 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1857 try gfc_add_common (symbol_attribute *, locus *);
1858 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1859 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1860 try gfc_add_data (symbol_attribute *, const char *, locus *);
1861 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1862 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1863 try gfc_add_elemental (symbol_attribute *, locus *);
1864 try gfc_add_pure (symbol_attribute *, locus *);
1865 try gfc_add_recursive (symbol_attribute *, locus *);
1866 try gfc_add_function (symbol_attribute *, const char *, locus *);
1867 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1868 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
1870 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1871 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1872 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1873 try gfc_add_procedure (symbol_attribute *, procedure_type,
1874 const char *, locus *);
1875 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1876 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1877 gfc_formal_arglist *, locus *);
1878 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1880 void gfc_clear_attr (symbol_attribute *);
1881 try gfc_missing_attr (symbol_attribute *, locus *);
1882 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1884 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1885 gfc_symbol *gfc_use_derived (gfc_symbol *);
1886 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1887 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1889 gfc_st_label *gfc_get_st_label (int);
1890 void gfc_free_st_label (gfc_st_label *);
1891 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1892 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1894 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1895 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1896 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1897 gfc_user_op *gfc_get_uop (const char *);
1898 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1899 void gfc_free_symbol (gfc_symbol *);
1900 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1901 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1902 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1903 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1904 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1905 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1906 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1908 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1910 void gfc_undo_symbols (void);
1911 void gfc_commit_symbols (void);
1912 void gfc_commit_symbol (gfc_symbol * sym);
1913 void gfc_free_namespace (gfc_namespace *);
1915 void gfc_symbol_init_2 (void);
1916 void gfc_symbol_done_2 (void);
1918 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1919 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1920 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1921 void gfc_save_all (gfc_namespace *);
1923 void gfc_symbol_state (void);
1925 gfc_gsymbol *gfc_get_gsymbol (const char *);
1926 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1929 extern int gfc_init_expr;
1931 /* Given a symbol that we have decided is intrinsic, mark it as such
1932 by placing it into a special module that is otherwise impossible to
1935 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1937 void gfc_intrinsic_init_1 (void);
1938 void gfc_intrinsic_done_1 (void);
1940 char gfc_type_letter (bt);
1941 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1942 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1943 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1944 int gfc_generic_intrinsic (const char *);
1945 int gfc_specific_intrinsic (const char *);
1946 int gfc_intrinsic_name (const char *, int);
1947 int gfc_intrinsic_actual_ok (const char *, const bool);
1948 gfc_intrinsic_sym *gfc_find_function (const char *);
1950 match gfc_intrinsic_func_interface (gfc_expr *, int);
1951 match gfc_intrinsic_sub_interface (gfc_code *, int);
1954 void gfc_simplify_init_1 (void);
1956 /* match.c -- FIXME */
1957 void gfc_free_iterator (gfc_iterator *, int);
1958 void gfc_free_forall_iterator (gfc_forall_iterator *);
1959 void gfc_free_alloc_list (gfc_alloc *);
1960 void gfc_free_namelist (gfc_namelist *);
1961 void gfc_free_equiv (gfc_equiv *);
1962 void gfc_free_data (gfc_data *);
1963 void gfc_free_case_list (gfc_case *);
1965 /* matchexp.c -- FIXME too? */
1966 gfc_expr *gfc_get_parentheses (gfc_expr *);
1969 void gfc_free_omp_clauses (gfc_omp_clauses *);
1970 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
1971 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
1972 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
1973 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
1976 void gfc_free_actual_arglist (gfc_actual_arglist *);
1977 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1978 const char *gfc_extract_int (gfc_expr *, int *);
1979 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
1981 gfc_expr *gfc_build_conversion (gfc_expr *);
1982 void gfc_free_ref_list (gfc_ref *);
1983 void gfc_type_convert_binary (gfc_expr *);
1984 int gfc_is_constant_expr (gfc_expr *);
1985 try gfc_simplify_expr (gfc_expr *, int);
1986 int gfc_has_vector_index (gfc_expr *);
1988 gfc_expr *gfc_get_expr (void);
1989 void gfc_free_expr (gfc_expr *);
1990 void gfc_replace_expr (gfc_expr *, gfc_expr *);
1991 gfc_expr *gfc_int_expr (int);
1992 gfc_expr *gfc_logical_expr (int, locus *);
1993 mpz_t *gfc_copy_shape (mpz_t *, int);
1994 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
1995 gfc_expr *gfc_copy_expr (gfc_expr *);
1997 try gfc_specification_expr (gfc_expr *);
1999 int gfc_numeric_ts (gfc_typespec *);
2000 int gfc_kind_max (gfc_expr *, gfc_expr *);
2002 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2003 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2004 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2005 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2007 gfc_expr *gfc_default_initializer (gfc_typespec *);
2008 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2010 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
2013 extern gfc_code new_st;
2015 void gfc_clear_new_st (void);
2016 gfc_code *gfc_get_code (void);
2017 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2018 void gfc_free_statement (gfc_code *);
2019 void gfc_free_statements (gfc_code *);
2022 try gfc_resolve_expr (gfc_expr *);
2023 void gfc_resolve (gfc_namespace *);
2024 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2025 int gfc_impure_variable (gfc_symbol *);
2026 int gfc_pure (gfc_symbol *);
2027 int gfc_elemental (gfc_symbol *);
2028 try gfc_resolve_iterator (gfc_iterator *, bool);
2029 try gfc_resolve_index (gfc_expr *, int);
2030 try gfc_resolve_dim_arg (gfc_expr *);
2031 int gfc_is_formal_arg (void);
2034 void gfc_free_array_spec (gfc_array_spec *);
2035 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2037 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2038 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2039 try gfc_resolve_array_spec (gfc_array_spec *, int);
2041 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2043 gfc_expr *gfc_start_constructor (bt, int, locus *);
2044 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2045 void gfc_free_constructor (gfc_constructor *);
2046 void gfc_simplify_iterator_var (gfc_expr *);
2047 try gfc_expand_constructor (gfc_expr *);
2048 int gfc_constant_ac (gfc_expr *);
2049 int gfc_expanded_ac (gfc_expr *);
2050 void gfc_resolve_character_array_constructor (gfc_expr *);
2051 try gfc_resolve_array_constructor (gfc_expr *);
2052 try gfc_check_constructor_type (gfc_expr *);
2053 try gfc_check_iter_variable (gfc_expr *);
2054 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2055 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
2056 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2057 try gfc_array_size (gfc_expr *, mpz_t *);
2058 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2059 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2060 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2061 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2062 gfc_constructor *gfc_get_constructor (void);
2063 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
2064 try spec_size (gfc_array_spec *, mpz_t *);
2065 int gfc_is_compile_time_shape (gfc_array_spec *);
2067 /* interface.c -- FIXME: some of these should be in symbol.c */
2068 void gfc_free_interface (gfc_interface *);
2069 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2070 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2071 void gfc_check_interfaces (gfc_namespace *);
2072 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2073 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2074 gfc_actual_arglist **);
2075 try gfc_extend_expr (gfc_expr *);
2076 void gfc_free_formal_arglist (gfc_formal_arglist *);
2077 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2078 try gfc_add_interface (gfc_symbol * sym);
2081 extern gfc_st_label format_asterisk;
2083 void gfc_free_open (gfc_open *);
2084 try gfc_resolve_open (gfc_open *);
2085 void gfc_free_close (gfc_close *);
2086 try gfc_resolve_close (gfc_close *);
2087 void gfc_free_filepos (gfc_filepos *);
2088 try gfc_resolve_filepos (gfc_filepos *);
2089 void gfc_free_inquire (gfc_inquire *);
2090 try gfc_resolve_inquire (gfc_inquire *);
2091 void gfc_free_dt (gfc_dt *);
2092 try gfc_resolve_dt (gfc_dt *);
2095 void gfc_module_init_2 (void);
2096 void gfc_module_done_2 (void);
2097 void gfc_dump_module (const char *, int);
2098 bool gfc_check_access (gfc_access, gfc_access);
2101 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2102 symbol_attribute gfc_expr_attr (gfc_expr *);
2105 void gfc_generate_code (gfc_namespace *);
2106 void gfc_generate_module_code (gfc_namespace *);
2109 typedef int (*compare_fn) (void *, void *);
2110 void gfc_insert_bbt (void *, void *, compare_fn);
2111 void gfc_delete_bbt (void *, void *, compare_fn);
2113 /* dump-parse-tree.c */
2114 void gfc_show_actual_arglist (gfc_actual_arglist *);
2115 void gfc_show_array_ref (gfc_array_ref *);
2116 void gfc_show_array_spec (gfc_array_spec *);
2117 void gfc_show_attr (symbol_attribute *);
2118 void gfc_show_code (int, gfc_code *);
2119 void gfc_show_components (gfc_symbol *);
2120 void gfc_show_constructor (gfc_constructor *);
2121 void gfc_show_equiv (gfc_equiv *);
2122 void gfc_show_expr (gfc_expr *);
2123 void gfc_show_namelist (gfc_namelist *);
2124 void gfc_show_namespace (gfc_namespace *);
2125 void gfc_show_ref (gfc_ref *);
2126 void gfc_show_symbol (gfc_symbol *);
2127 void gfc_show_typespec (gfc_typespec *);
2130 try gfc_parse_file (void);
2131 void global_used (gfc_gsymbol *, locus *);
2134 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2136 #endif /* GCC_GFORTRAN_H */