1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 #ifndef GCC_GFORTRAN_H
24 #define GCC_GFORTRAN_H
26 /* It's probably insane to have this large of a header file, but it
27 seemed like everything had to be recompiled anyway when a change
28 was made to a header file, and there were ordering issues with
29 multiple header files. Besides, Microsoft's winnt.h was 250k last
30 time I looked, so by comparison this is perfectly reasonable. */
34 #include "coretypes.h"
36 #include "splay-tree.h"
37 /* The following ifdefs are recommended by the autoconf documentation
38 for any code using alloca. */
40 /* AIX requires this to be the first thing in the file. */
42 #else /* not __GNUC__ */
45 #else /* do not HAVE_ALLOCA_H */
49 #ifndef alloca /* predefined by HP cc +Olibcalls */
51 #endif /* not predefined */
53 #endif /* do not HAVE_ALLOCA_H */
54 #endif /* not __GNUC__ */
56 /* Major control parameters. */
58 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
59 #define GFC_MAX_DIMENSIONS 7 /* Maximum dimensions in an array. */
60 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
62 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
65 #define free(x) Use_gfc_free_instead_of_free()
66 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
69 #define NULL ((void *) 0)
73 #define stringize(x) expand_macro(x)
74 #define expand_macro(x) # x
76 /* For a the runtime library, a standard prefix is a requirement to
77 avoid cluttering the namespace with things nobody asked for. It's
78 ugly to look at and a pain to type when you add the prefix by hand,
79 so we hide it behind a macro. */
80 #define PREFIX(x) "_gfortran_" x
83 #define BLANK_COMMON_NAME "__BLNK__"
85 /* Macro to initialize an mstring structure. */
86 #define minit(s, t) { s, NULL, t }
88 /* Structure for storing strings to be matched by gfc_match_string. */
98 /* Flags to specify which standard/extension contains a feature. */
99 #define GFC_STD_LEGACY (1<<6) /* Backward compatibility. */
100 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */
101 #define GFC_STD_F2003 (1<<4) /* New in F2003. */
102 /* Note that no additional features were deleted or made obsolescent
104 #define GFC_STD_F95 (1<<3) /* New in F95. */
105 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
106 #define GFC_STD_F95_OBS (1<<1) /* Obsolescent in F95. */
107 #define GFC_STD_F77 (1<<0) /* Included in F77, but not
108 deleted or obsolescent in
111 /* Bitmasks for the various FPE that can be enabled. */
112 #define GFC_FPE_INVALID (1<<0)
113 #define GFC_FPE_DENORMAL (1<<1)
114 #define GFC_FPE_ZERO (1<<2)
115 #define GFC_FPE_OVERFLOW (1<<3)
116 #define GFC_FPE_UNDERFLOW (1<<4)
117 #define GFC_FPE_PRECISION (1<<5)
119 /* Keep this in sync with libgfortran/io/io.h ! */
122 { CONVERT_NATIVE=0, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
126 /*************************** Enums *****************************/
128 /* The author remains confused to this day about the convention of
129 returning '0' for 'SUCCESS'... or was it the other way around? The
130 following enum makes things much more readable. We also start
131 values off at one instead of zero. */
134 { SUCCESS = 1, FAILURE }
137 /* This is returned by gfc_notification_std to know if, given the flags
138 that were given (-std=, -pedantic) we should issue an error, a warning
142 { SILENT, WARNING, ERROR }
145 /* Matchers return one of these three values. The difference between
146 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
147 successful, but that something non-syntactic is wrong and an error
148 has already been issued. */
151 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
155 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
159 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
160 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH
164 /* Expression node types. */
166 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
167 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
173 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
174 AS_ASSUMED_SIZE, AS_UNKNOWN
179 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
182 /* Statement label types. */
184 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
185 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
189 /* Intrinsic operators. */
191 { GFC_INTRINSIC_BEGIN = 0,
192 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
193 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
194 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
195 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
196 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
197 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
198 INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES,
199 GFC_INTRINSIC_END /* Sentinel */
204 /* Strings for all intrinsic operators. */
205 extern mstring intrinsic_operators[];
208 /* This macro is the number of intrinsic operators that exist.
209 Assumptions are made about the numbering of the interface_op enums. */
210 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
212 /* Arithmetic results. */
214 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
215 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
222 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
223 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
224 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
225 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
226 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
227 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
228 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
229 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
230 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
231 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
232 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
233 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
234 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
235 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
236 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
237 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
238 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
239 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
240 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
241 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
242 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
243 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
244 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE,
250 /* Types of interfaces that we can have. Assignment interfaces are
251 considered to be intrinsic operators. */
254 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
255 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
259 /* Symbol flavors: these are all mutually exclusive.
260 10 elements = 4 bits. */
261 typedef enum sym_flavor
263 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
264 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST
268 /* Procedure types. 7 elements = 3 bits. */
269 typedef enum procedure_type
270 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
271 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
276 typedef enum sym_intent
277 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
282 typedef enum gfc_access
283 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
287 /* Flags to keep track of where an interface came from.
288 4 elements = 2 bits. */
290 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
294 /* Strings for all symbol attributes. We use these for dumping the
295 parse tree, in error messages, and also when reading and writing
296 modules. In symbol.c. */
297 extern const mstring flavors[];
298 extern const mstring procedures[];
299 extern const mstring intents[];
300 extern const mstring access_types[];
301 extern const mstring ifsrc_types[];
303 /* Enumeration of all the generic intrinsic functions. Used by the
304 backend for identification of a function. */
306 enum gfc_generic_isym_id
308 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
309 the backend (eg. KIND). */
343 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
353 GFC_ISYM_DOT_PRODUCT,
441 GFC_ISYM_SET_EXPONENT,
473 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
475 /************************* Structures *****************************/
477 /* Used for keeping things in balanced binary trees. */
478 #define BBT_HEADER(self) int priority; struct self *left, *right
480 /* Symbol attribute structure. */
483 /* Variable attributes. */
484 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
485 optional:1, pointer:1, save:1, target:1, value:1, volatile_:1,
486 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1;
488 unsigned data:1, /* Symbol is named in a DATA statement. */
489 protected:1, /* Symbol has been marked as protected. */
490 use_assoc:1, /* Symbol has been use-associated. */
491 use_only:1; /* Symbol has been use-associated, with ONLY. */
493 unsigned in_namelist:1, in_common:1, in_equivalence:1;
494 unsigned function:1, subroutine:1, generic:1, generic_copy:1;
495 unsigned implicit_type:1; /* Type defined via implicit rules. */
496 unsigned untyped:1; /* No implicit type could be found. */
498 /* Function/subroutine attributes */
499 unsigned sequence:1, elemental:1, pure:1, recursive:1;
500 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1;
502 /* This is set if the subroutine doesn't return. Currently, this
503 is only possible for intrinsic subroutines. */
506 /* Set if this procedure is an alternate entry point. These procedures
507 don't have any code associated, and the backend will turn them into
508 thunks to the master function. */
511 /* Set if this is the master function for a procedure with multiple
513 unsigned entry_master:1;
515 /* Set if this is the master function for a function with multiple
516 entry points where characteristics of the entry points differ. */
517 unsigned mixed_entry_master:1;
519 /* Set if a function must always be referenced by an explicit interface. */
520 unsigned always_explicit:1;
522 /* Set if the symbol has been referenced in an expression. No further
523 modification of type or type parameters is permitted. */
524 unsigned referenced:1;
526 /* Set if the symbol has ambiguous interfaces. */
527 unsigned ambiguous_interfaces:1;
529 /* Set if the is the symbol for the main program. This is the least
530 cumbersome way to communicate this function property without
531 strcmp'ing with __MAIN everywhere. */
532 unsigned is_main_program:1;
534 /* Mutually exclusive multibit attributes. */
535 ENUM_BITFIELD (gfc_access) access:2;
536 ENUM_BITFIELD (sym_intent) intent:2;
537 ENUM_BITFIELD (sym_flavor) flavor:4;
538 ENUM_BITFIELD (ifsrc) if_source:2;
540 ENUM_BITFIELD (procedure_type) proc:3;
542 /* Special attributes for Cray pointers, pointees. */
543 unsigned cray_pointer:1, cray_pointee:1;
545 /* The symbol is a derived type with allocatable components, possibly nested.
547 unsigned alloc_comp:1;
549 /* The namespace where the VOLATILE attribute has been set. */
550 struct gfc_namespace *volatile_ns;
555 /* The following three structures are used to identify a location in
558 gfc_file is used to maintain a tree of the source files and how
559 they include each other
561 gfc_linebuf holds a single line of source code and information
562 which file it resides in
564 locus point to the sourceline and the character in the source
568 typedef struct gfc_file
570 struct gfc_file *included_by, *next, *up;
571 int inclusion_line, line;
575 typedef struct gfc_linebuf
577 #ifdef USE_MAPPED_LOCATION
578 source_location location;
582 struct gfc_file *file;
583 struct gfc_linebuf *next;
590 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
598 /* In order for the "gfc" format checking to work correctly, you must
599 have declared a typedef locus first. */
600 #if GCC_VERSION >= 4001
601 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
603 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
607 extern int gfc_suppress_error;
610 /* Character length structures hold the expression that gives the
611 length of a character variable. We avoid putting these into
612 gfc_typespec because doing so prevents us from doing structure
613 copies and forces us to deallocate any typespecs we create, as well
614 as structures that contain typespecs. They also can have multiple
615 character typespecs pointing to them.
617 These structures form a singly linked list within the current
618 namespace and are deallocated with the namespace. It is possible to
619 end up with gfc_charlen structures that have nothing pointing to them. */
621 typedef struct gfc_charlen
623 struct gfc_expr *length;
624 struct gfc_charlen *next;
631 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
633 /* Type specification structure. FIXME: derived and cl could be union??? */
638 struct gfc_symbol *derived;
639 gfc_charlen *cl; /* For character types only. */
643 /* Array specification. */
646 int rank; /* A rank of zero means that a variable is a scalar. */
648 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
650 /* These two fields are used with the Cray Pointer extension. */
651 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
652 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
653 AS_EXPLICIT, but we want to remember that we
659 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
662 /* Components of derived types. */
663 typedef struct gfc_component
668 int pointer, allocatable, dimension;
673 struct gfc_expr *initializer;
674 struct gfc_component *next;
678 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
680 /* Formal argument lists are lists of symbols. */
681 typedef struct gfc_formal_arglist
683 /* Symbol representing the argument at this position in the arglist. */
684 struct gfc_symbol *sym;
685 /* Points to the next formal argument. */
686 struct gfc_formal_arglist *next;
690 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
693 /* The gfc_actual_arglist structure is for actual arguments. */
694 typedef struct gfc_actual_arglist
697 /* Alternate return label when the expr member is null. */
698 struct gfc_st_label *label;
700 /* This is set to the type of an eventual omitted optional
701 argument. This is used to determine if a hidden string length
702 argument has to be added to a function call. */
705 struct gfc_expr *expr;
706 struct gfc_actual_arglist *next;
710 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
713 /* Because a symbol can belong to multiple namelists, they must be
714 linked externally to the symbol itself. */
715 typedef struct gfc_namelist
717 struct gfc_symbol *sym;
718 struct gfc_namelist *next;
722 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
727 OMP_LIST_FIRSTPRIVATE,
728 OMP_LIST_LASTPRIVATE,
729 OMP_LIST_COPYPRIVATE,
733 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
745 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
749 /* Because a symbol can belong to multiple namelists, they must be
750 linked externally to the symbol itself. */
751 typedef struct gfc_omp_clauses
753 struct gfc_expr *if_expr;
754 struct gfc_expr *num_threads;
755 gfc_namelist *lists[OMP_LIST_NUM];
764 struct gfc_expr *chunk_size;
772 bool nowait, ordered;
776 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
779 /* The gfc_st_label structure is a doubly linked list attached to a
780 namespace that records the usage of statement labels within that
782 /* TODO: Make format/statement specifics a union. */
783 typedef struct gfc_st_label
785 BBT_HEADER(gfc_st_label);
789 gfc_sl_type defined, referenced;
791 struct gfc_expr *format;
800 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
801 typedef struct gfc_interface
803 struct gfc_symbol *sym;
805 struct gfc_interface *next;
809 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
812 /* User operator nodes. These are like stripped down symbols. */
817 gfc_interface *operator;
818 struct gfc_namespace *ns;
823 /* Symbol nodes. These are important things. They are what the
824 standard refers to as "entities". The possibly multiple names that
825 refer to the same entity are accomplished by a binary tree of
826 symtree structures that is balanced by the red-black method-- more
827 than one symtree node can point to any given symbol. */
829 typedef struct gfc_symbol
831 const char *name; /* Primary name, before renaming */
832 const char *module; /* Module this symbol came from */
836 symbol_attribute attr;
838 /* The interface member points to the formal argument list if the
839 symbol is a function or subroutine name. If the symbol is a
840 generic name, the generic member points to the list of
843 gfc_interface *generic;
844 gfc_access component_access;
846 gfc_formal_arglist *formal;
847 struct gfc_namespace *formal_ns;
849 struct gfc_expr *value; /* Parameter/Initializer value */
851 struct gfc_symbol *result; /* function result symbol */
852 gfc_component *components; /* Derived type components */
854 /* Defined only for Cray pointees; points to their pointer. */
855 struct gfc_symbol *cp_pointer;
857 struct gfc_symbol *common_next; /* Links for COMMON syms */
859 /* This is in fact a gfc_common_head but it is only used for pointer
860 comparisons to check if symbols are in the same common block. */
861 struct gfc_common_head* common_head;
863 /* Make sure setup code for dummy arguments is generated in the correct
869 gfc_namelist *namelist, *namelist_tail;
871 /* Change management fields. Symbols that might be modified by the
872 current statement have the mark member nonzero and are kept in a
873 singly linked list through the tlink field. Of these symbols,
874 symbols with old_symbol equal to NULL are symbols created within
875 the current statement. Otherwise, old_symbol points to a copy of
878 struct gfc_symbol *old_symbol, *tlink;
879 unsigned mark:1, new:1;
880 /* Nonzero if all equivalences associated with this symbol have been
882 unsigned equiv_built:1;
883 /* Set if this variable is used as an index name in a FORALL. */
884 unsigned forall_index:1;
886 struct gfc_namespace *ns; /* namespace containing this symbol */
893 /* This structure is used to keep track of symbols in common blocks. */
895 typedef struct gfc_common_head
898 char use_assoc, saved, threadprivate;
899 char name[GFC_MAX_SYMBOL_LEN + 1];
900 struct gfc_symbol *head;
904 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
907 /* A list of all the alternate entry points for a procedure. */
909 typedef struct gfc_entry_list
911 /* The symbol for this entry point. */
913 /* The zero-based id of this entry point. */
915 /* The LABEL_EXPR marking this entry point. */
917 /* The nest item in the list. */
918 struct gfc_entry_list *next;
922 #define gfc_get_entry_list() \
923 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
925 /* Within a namespace, symbols are pointed to by symtree nodes that
926 are linked together in a balanced binary tree. There can be
927 several symtrees pointing to the same symbol node via USE
930 typedef struct gfc_symtree
932 BBT_HEADER (gfc_symtree);
937 gfc_symbol *sym; /* Symbol associated with this node */
939 gfc_common_head *common;
946 /* A linked list of derived types in the namespace. */
947 typedef struct gfc_dt_list
949 struct gfc_symbol *derived;
950 struct gfc_dt_list *next;
954 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
956 /* A list of all derived types. */
957 extern gfc_dt_list *gfc_derived_types;
959 /* A namespace describes the contents of procedure, module or
961 /* ??? Anything else use these? */
963 typedef struct gfc_namespace
965 /* Tree containing all the symbols in this namespace. */
966 gfc_symtree *sym_root;
967 /* Tree containing all the user-defined operators in the namespace. */
968 gfc_symtree *uop_root;
969 /* Tree containing all the common blocks. */
970 gfc_symtree *common_root;
972 /* If set_flag[letter] is set, an implicit type has been set for letter. */
973 int set_flag[GFC_LETTERS];
974 /* Keeps track of the implicit types associated with the letters. */
975 gfc_typespec default_type[GFC_LETTERS];
977 /* If this is a namespace of a procedure, this points to the procedure. */
978 struct gfc_symbol *proc_name;
979 /* If this is the namespace of a unit which contains executable
980 code, this points to it. */
981 struct gfc_code *code;
983 /* Points to the equivalences set up in this namespace. */
984 struct gfc_equiv *equiv;
986 /* Points to the equivalence groups produced by trans_common. */
987 struct gfc_equiv_list *equiv_lists;
989 gfc_interface *operator[GFC_INTRINSIC_OPS];
991 /* Points to the parent namespace, i.e. the namespace of a module or
992 procedure in which the procedure belonging to this namespace is
993 contained. The parent namespace points to this namespace either
994 directly via CONTAINED, or indirectly via the chain built by
996 struct gfc_namespace *parent;
997 /* CONTAINED points to the first contained namespace. Sibling
998 namespaces are chained via SIBLING. */
999 struct gfc_namespace *contained, *sibling;
1001 gfc_common_head blank_common;
1002 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1004 gfc_st_label *st_labels;
1005 /* This list holds information about all the data initializers in
1007 struct gfc_data *data;
1009 gfc_charlen *cl_list;
1011 int save_all, seen_save, seen_implicit_none;
1013 /* Normally we don't need to refcount namespaces. However when we read
1014 a module containing a function with multiple entry points, this
1015 will appear as several functions with the same formal namespace. */
1018 /* A list of all alternate entry points to this procedure (or NULL). */
1019 gfc_entry_list *entries;
1021 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1024 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1029 extern gfc_namespace *gfc_current_ns;
1031 /* Global symbols are symbols of global scope. Currently we only use
1032 this to detect collisions already when parsing.
1033 TODO: Extend to verify procedure calls. */
1035 typedef struct gfc_gsymbol
1037 BBT_HEADER(gfc_gsymbol);
1040 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1041 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1048 extern gfc_gsymbol *gfc_gsym_root;
1050 /* Information on interfaces being built. */
1053 interface_type type;
1057 gfc_intrinsic_op op;
1061 extern gfc_interface_info current_interface;
1064 /* Array reference. */
1065 typedef struct gfc_array_ref
1068 int dimen; /* # of components in the reference */
1072 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1073 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1074 *stride[GFC_MAX_DIMENSIONS];
1077 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1078 dimen_type[GFC_MAX_DIMENSIONS];
1080 struct gfc_expr *offset;
1084 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1087 /* Component reference nodes. A variable is stored as an expression
1088 node that points to the base symbol. After that, a singly linked
1089 list of component reference nodes gives the variable's complete
1090 resolution. The array_ref component may be present and comes
1091 before the component component. */
1094 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1097 typedef struct gfc_ref
1103 struct gfc_array_ref ar;
1107 gfc_component *component;
1114 struct gfc_expr *start, *end; /* Substring */
1115 gfc_charlen *length;
1122 struct gfc_ref *next;
1126 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1129 /* Structures representing intrinsic symbols and their arguments lists. */
1130 typedef struct gfc_intrinsic_arg
1132 char name[GFC_MAX_SYMBOL_LEN + 1];
1136 gfc_actual_arglist *actual;
1138 struct gfc_intrinsic_arg *next;
1144 /* Specifies the various kinds of check functions used to verify the
1145 argument lists of intrinsic functions. fX with X an integer refer
1146 to check functions of intrinsics with X arguments. f1m is used for
1147 the MAX and MIN intrinsics which can have an arbitrary number of
1148 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1149 these have special semantics. */
1154 try (*f1)(struct gfc_expr *);
1155 try (*f1m)(gfc_actual_arglist *);
1156 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1157 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1158 try (*f3ml)(gfc_actual_arglist *);
1159 try (*f3red)(gfc_actual_arglist *);
1160 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1162 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1163 struct gfc_expr *, struct gfc_expr *);
1167 /* Like gfc_check_f, these specify the type of the simplification
1168 function associated with an intrinsic. The fX are just like in
1169 gfc_check_f. cc is used for type conversion functions. */
1173 struct gfc_expr *(*f0)(void);
1174 struct gfc_expr *(*f1)(struct gfc_expr *);
1175 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1176 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1178 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1179 struct gfc_expr *, struct gfc_expr *);
1180 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1181 struct gfc_expr *, struct gfc_expr *,
1183 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1187 /* Again like gfc_check_f, these specify the type of the resolution
1188 function associated with an intrinsic. The fX are just like in
1189 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1194 void (*f0)(struct gfc_expr *);
1195 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1196 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1197 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1198 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1200 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1201 struct gfc_expr *, struct gfc_expr *);
1202 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1203 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1204 void (*s1)(struct gfc_code *);
1209 typedef struct gfc_intrinsic_sym
1211 const char *name, *lib_name;
1212 gfc_intrinsic_arg *formal;
1214 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1216 gfc_simplify_f simplify;
1218 gfc_resolve_f resolve;
1219 struct gfc_intrinsic_sym *specific_head, *next;
1220 gfc_generic_isym_id generic_id;
1226 /* Expression nodes. The expression node types deserve explanations,
1227 since the last couple can be easily misconstrued:
1229 EXPR_OP Operator node pointing to one or two other nodes
1230 EXPR_FUNCTION Function call, symbol points to function's name
1231 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1232 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1233 which expresses structure, array and substring refs.
1234 EXPR_NULL The NULL pointer value (which also has a basic type).
1235 EXPR_SUBSTRING A substring of a constant string
1236 EXPR_STRUCTURE A structure constructor
1237 EXPR_ARRAY An array constructor. */
1241 #define GFC_RND_MODE GMP_RNDN
1243 typedef struct gfc_expr
1247 gfc_typespec ts; /* These two refer to the overall expression */
1250 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1252 /* Nonnull for functions and structure constructors */
1253 gfc_symtree *symtree;
1259 /* True if it is converted from Hollerith constant. */
1260 unsigned int from_H : 1;
1261 /* True if the expression is a call to a function that returns an array,
1262 and if we have decided not to allocate temporary data for that array. */
1263 unsigned int inline_noncopying_intrinsic : 1;
1264 /* Used to quickly find a given constructor by it's offset. */
1265 splay_tree con_by_offset;
1282 gfc_intrinsic_op operator;
1284 struct gfc_expr *op1, *op2;
1290 gfc_actual_arglist *actual;
1291 const char *name; /* Points to the ultimate name of the function */
1292 gfc_intrinsic_sym *isym;
1304 struct gfc_constructor *constructor;
1312 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1314 /* Structures for information associated with different kinds of
1315 numbers. The first set of integer parameters define all there is
1316 to know about a particular kind. The rest of the elements are
1317 computed from the first elements. */
1321 /* Values really representable by the target. */
1322 mpz_t huge, pedantic_min_int, min_int;
1324 int kind, radix, digits, bit_size, range;
1326 /* True if the C type of the given name maps to this precision.
1327 Note that more than one bit can be set. */
1328 unsigned int c_char : 1;
1329 unsigned int c_short : 1;
1330 unsigned int c_int : 1;
1331 unsigned int c_long : 1;
1332 unsigned int c_long_long : 1;
1336 extern gfc_integer_info gfc_integer_kinds[];
1343 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1344 unsigned int c_bool : 1;
1348 extern gfc_logical_info gfc_logical_kinds[];
1353 mpfr_t epsilon, huge, tiny, subnormal;
1354 int kind, radix, digits, min_exponent, max_exponent;
1355 int range, precision;
1357 /* The precision of the type as reported by GET_MODE_PRECISION. */
1360 /* True if the C type of the given name maps to this precision.
1361 Note that more than one bit can be set. */
1362 unsigned int c_float : 1;
1363 unsigned int c_double : 1;
1364 unsigned int c_long_double : 1;
1368 extern gfc_real_info gfc_real_kinds[];
1371 /* Equivalence structures. Equivalent lvalues are linked along the
1372 *eq pointer, equivalence sets are strung along the *next node. */
1373 typedef struct gfc_equiv
1375 struct gfc_equiv *next, *eq;
1382 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1384 /* Holds a single equivalence member after processing. */
1385 typedef struct gfc_equiv_info
1388 HOST_WIDE_INT offset;
1389 HOST_WIDE_INT length;
1390 struct gfc_equiv_info *next;
1393 /* Holds equivalence groups, after they have been processed. */
1394 typedef struct gfc_equiv_list
1396 gfc_equiv_info *equiv;
1397 struct gfc_equiv_list *next;
1400 /* gfc_case stores the selector list of a case statement. The *low
1401 and *high pointers can point to the same expression in the case of
1402 a single value. If *high is NULL, the selection is from *low
1403 upwards, if *low is NULL the selection is *high downwards.
1405 This structure has separate fields to allow single and double linked
1406 lists of CASEs at the same time. The singe linked list along the NEXT
1407 field is a list of cases for a single CASE label. The double linked
1408 list along the LEFT/RIGHT fields is used to detect overlap and to
1409 build a table of the cases for SELECT constructs with a CHARACTER
1412 typedef struct gfc_case
1414 /* Where we saw this case. */
1418 /* Case range values. If (low == high), it's a single value. If one of
1419 the labels is NULL, it's an unbounded case. If both are NULL, this
1420 represents the default case. */
1421 gfc_expr *low, *high;
1423 /* Next case label in the list of cases for a single CASE label. */
1424 struct gfc_case *next;
1426 /* Used for detecting overlap, and for code generation. */
1427 struct gfc_case *left, *right;
1429 /* True if this case label can never be matched. */
1434 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1439 gfc_expr *var, *start, *end, *step;
1443 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1446 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1448 typedef struct gfc_alloc
1451 struct gfc_alloc *next;
1455 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1460 gfc_expr *unit, *file, *status, *access, *form, *recl,
1461 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1469 gfc_expr *unit, *status, *iostat, *iomsg;
1477 gfc_expr *unit, *iostat, *iomsg;
1485 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1486 *name, *access, *sequential, *direct, *form, *formatted,
1487 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1488 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1498 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1500 gfc_symbol *namelist;
1501 /* A format_label of `format_asterisk' indicates the "*" format */
1502 gfc_st_label *format_label;
1503 gfc_st_label *err, *end, *eor;
1505 locus eor_where, end_where, err_where;
1510 typedef struct gfc_forall_iterator
1512 gfc_expr *var, *start, *end, *stride;
1513 struct gfc_forall_iterator *next;
1515 gfc_forall_iterator;
1518 /* Executable statements that fill gfc_code structures. */
1521 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1522 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1523 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1524 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1525 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1526 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1527 EXEC_OPEN, EXEC_CLOSE,
1528 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1529 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1530 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1531 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1532 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1533 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1534 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1539 typedef struct gfc_code
1543 struct gfc_code *block, *next;
1546 gfc_st_label *here, *label, *label2, *label3;
1547 gfc_symtree *symtree;
1548 gfc_expr *expr, *expr2;
1549 /* A name isn't sufficient to identify a subroutine, we need the actual
1550 symbol for the interface definition.
1551 const char *sub_name; */
1552 gfc_symbol *resolved_sym;
1556 gfc_actual_arglist *actual;
1557 gfc_case *case_list;
1558 gfc_iterator *iterator;
1559 gfc_alloc *alloc_list;
1562 gfc_filepos *filepos;
1563 gfc_inquire *inquire;
1565 gfc_forall_iterator *forall_iterator;
1566 struct gfc_code *whichloop;
1568 gfc_entry_list *entry;
1569 gfc_omp_clauses *omp_clauses;
1570 const char *omp_name;
1571 gfc_namelist *omp_namelist;
1574 ext; /* Points to additional structures required by statement */
1576 /* Backend_decl is used for cycle and break labels in do loops, and
1577 probably for other constructs as well, once we translate them. */
1583 /* Storage for DATA statements. */
1584 typedef struct gfc_data_variable
1588 struct gfc_data_variable *list, *next;
1593 typedef struct gfc_data_value
1595 unsigned int repeat;
1597 struct gfc_data_value *next;
1602 typedef struct gfc_data
1604 gfc_data_variable *var;
1605 gfc_data_value *value;
1608 struct gfc_data *next;
1612 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1613 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1614 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1617 /* Structure for holding compile options */
1621 gfc_source_form source_form;
1622 /* Maximum line lengths in fixed- and free-form source, respectively.
1623 When fixed_line_length or free_line_length are 0, the whole line is used,
1624 regardless of length.
1626 If the user requests a fixed_line_length <7 then gfc_init_options()
1627 emits a fatal error. */
1628 int fixed_line_length;
1629 int free_line_length;
1630 /* Maximum number of continuation lines in fixed- and free-form source,
1632 int max_continue_fixed;
1633 int max_continue_free;
1634 int max_identifier_length;
1639 int warn_conversion;
1640 int warn_implicit_interface;
1641 int warn_line_truncation;
1642 int warn_surprising;
1645 int warn_character_truncation;
1648 int flag_all_intrinsics;
1649 int flag_default_double;
1650 int flag_default_integer;
1651 int flag_default_real;
1653 int flag_underscoring;
1654 int flag_second_underscore;
1655 int flag_implicit_none;
1656 int flag_max_stack_var_size;
1657 int flag_range_check;
1658 int flag_pack_derived;
1659 int flag_repack_arrays;
1660 int flag_preprocessed;
1665 int flag_allow_leading_underscore;
1667 int flag_external_blas;
1668 int blas_matmul_limit;
1669 int flag_cray_pointer;
1677 int warn_nonstd_intrinsics;
1681 int max_subrecord_length;
1685 extern gfc_option_t gfc_option;
1687 /* Constructor nodes for array and structure constructors. */
1688 typedef struct gfc_constructor
1691 gfc_iterator *iterator;
1693 struct gfc_constructor *next;
1696 mpz_t offset; /* Record the offset of array element which appears in
1697 data statement like "data a(5)/4/". */
1698 gfc_component *component; /* Record the component being initialized. */
1701 mpz_t repeat; /* Record the repeat number of initial values in data
1702 statement like "data a/5*10/". */
1707 typedef struct iterator_stack
1709 gfc_symtree *variable;
1711 struct iterator_stack *prev;
1714 extern iterator_stack *iter_stack;
1716 /************************ Function prototypes *************************/
1719 void gfc_formalize_init_value (gfc_symbol *);
1720 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1721 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1722 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1723 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1726 bool gfc_in_match_data (void);
1727 void gfc_set_in_match_data (bool);
1730 void gfc_scanner_done_1 (void);
1731 void gfc_scanner_init_1 (void);
1733 void gfc_add_include_path (const char *, bool);
1734 void gfc_add_intrinsic_modules_path (const char *);
1735 void gfc_release_include_path (void);
1736 FILE *gfc_open_included_file (const char *, bool, bool);
1737 FILE *gfc_open_intrinsic_module (const char *);
1739 int gfc_at_end (void);
1740 int gfc_at_eof (void);
1741 int gfc_at_bol (void);
1742 int gfc_at_eol (void);
1743 void gfc_advance_line (void);
1744 int gfc_check_include (void);
1746 void gfc_skip_comments (void);
1747 int gfc_next_char_literal (int);
1748 int gfc_next_char (void);
1749 int gfc_peek_char (void);
1750 void gfc_error_recovery (void);
1751 void gfc_gobble_whitespace (void);
1752 try gfc_new_file (void);
1753 const char * gfc_read_orig_filename (const char *, const char **);
1755 extern gfc_source_form gfc_current_form;
1756 extern const char *gfc_source_file;
1757 extern locus gfc_current_locus;
1760 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1761 void gfc_free (void *);
1762 int gfc_terminal_width(void);
1763 void gfc_clear_ts (gfc_typespec *);
1764 FILE *gfc_open_file (const char *);
1765 const char *gfc_basic_typename (bt);
1766 const char *gfc_typename (gfc_typespec *);
1768 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1769 "=" : gfc_code2string (intrinsic_operators, OP))
1771 const char *gfc_code2string (const mstring *, int);
1772 int gfc_string2code (const mstring *, const char *);
1773 const char *gfc_intent_string (sym_intent);
1775 void gfc_init_1 (void);
1776 void gfc_init_2 (void);
1777 void gfc_done_1 (void);
1778 void gfc_done_2 (void);
1781 unsigned int gfc_init_options (unsigned int, const char **);
1782 int gfc_handle_option (size_t, const char *, int);
1783 bool gfc_post_options (const char **);
1786 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1790 typedef struct gfc_error_buf
1793 size_t allocated, index;
1797 void gfc_error_init_1 (void);
1798 void gfc_buffer_error (int);
1800 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1801 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1802 void gfc_clear_warning (void);
1803 void gfc_warning_check (void);
1805 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1806 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1807 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1808 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1809 void gfc_clear_error (void);
1810 int gfc_error_check (void);
1811 int gfc_error_flag_test (void);
1813 notification gfc_notification_std (int);
1814 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1816 /* A general purpose syntax error. */
1817 #define gfc_syntax_error(ST) \
1818 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1820 void gfc_push_error (gfc_error_buf *);
1821 void gfc_pop_error (gfc_error_buf *);
1822 void gfc_free_error (gfc_error_buf *);
1824 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1825 void gfc_status_char (char);
1827 void gfc_get_errors (int *, int *);
1830 void gfc_arith_init_1 (void);
1831 void gfc_arith_done_1 (void);
1832 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1833 arith gfc_check_integer_range (mpz_t p, int kind);
1836 int gfc_validate_kind (bt, int, bool);
1837 extern int gfc_index_integer_kind;
1838 extern int gfc_default_integer_kind;
1839 extern int gfc_max_integer_kind;
1840 extern int gfc_default_real_kind;
1841 extern int gfc_default_double_kind;
1842 extern int gfc_default_character_kind;
1843 extern int gfc_default_logical_kind;
1844 extern int gfc_default_complex_kind;
1845 extern int gfc_c_int_kind;
1846 extern int gfc_intio_kind;
1847 extern int gfc_numeric_storage_size;
1848 extern int gfc_character_storage_size;
1851 void gfc_clear_new_implicit (void);
1852 try gfc_add_new_implicit_range (int, int);
1853 try gfc_merge_new_implicit (gfc_typespec *);
1854 void gfc_set_implicit_none (void);
1856 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1857 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1859 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1860 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1862 void gfc_set_sym_referenced (gfc_symbol * sym);
1864 try gfc_add_attribute (symbol_attribute *, locus *);
1865 try gfc_add_allocatable (symbol_attribute *, locus *);
1866 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1867 try gfc_add_external (symbol_attribute *, locus *);
1868 try gfc_add_intrinsic (symbol_attribute *, locus *);
1869 try gfc_add_optional (symbol_attribute *, locus *);
1870 try gfc_add_pointer (symbol_attribute *, locus *);
1871 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1872 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1873 try gfc_mod_pointee_as (gfc_array_spec *as);
1874 try gfc_add_protected (symbol_attribute *, const char *, locus *);
1875 try gfc_add_result (symbol_attribute *, const char *, locus *);
1876 try gfc_add_save (symbol_attribute *, const char *, locus *);
1877 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
1878 try gfc_add_saved_common (symbol_attribute *, locus *);
1879 try gfc_add_target (symbol_attribute *, locus *);
1880 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1881 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1882 try gfc_add_common (symbol_attribute *, locus *);
1883 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1884 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1885 try gfc_add_data (symbol_attribute *, const char *, locus *);
1886 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1887 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1888 try gfc_add_elemental (symbol_attribute *, locus *);
1889 try gfc_add_pure (symbol_attribute *, locus *);
1890 try gfc_add_recursive (symbol_attribute *, locus *);
1891 try gfc_add_function (symbol_attribute *, const char *, locus *);
1892 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1893 try gfc_add_value (symbol_attribute *, const char *, locus *);
1894 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
1896 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1897 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1898 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1899 try gfc_add_procedure (symbol_attribute *, procedure_type,
1900 const char *, locus *);
1901 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1902 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1903 gfc_formal_arglist *, locus *);
1904 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1906 void gfc_clear_attr (symbol_attribute *);
1907 try gfc_missing_attr (symbol_attribute *, locus *);
1908 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1910 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1911 gfc_symbol *gfc_use_derived (gfc_symbol *);
1912 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1913 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1915 gfc_st_label *gfc_get_st_label (int);
1916 void gfc_free_st_label (gfc_st_label *);
1917 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1918 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1920 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1921 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1922 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1923 gfc_user_op *gfc_get_uop (const char *);
1924 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1925 void gfc_free_symbol (gfc_symbol *);
1926 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1927 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1928 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1929 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1930 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1931 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1932 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1934 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1936 void gfc_undo_symbols (void);
1937 void gfc_commit_symbols (void);
1938 void gfc_commit_symbol (gfc_symbol * sym);
1939 void gfc_free_namespace (gfc_namespace *);
1941 void gfc_symbol_init_2 (void);
1942 void gfc_symbol_done_2 (void);
1944 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1945 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1946 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1947 void gfc_save_all (gfc_namespace *);
1949 void gfc_symbol_state (void);
1951 gfc_gsymbol *gfc_get_gsymbol (const char *);
1952 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1955 extern int gfc_init_expr;
1957 /* Given a symbol that we have decided is intrinsic, mark it as such
1958 by placing it into a special module that is otherwise impossible to
1961 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1963 void gfc_intrinsic_init_1 (void);
1964 void gfc_intrinsic_done_1 (void);
1966 char gfc_type_letter (bt);
1967 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1968 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1969 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1970 int gfc_generic_intrinsic (const char *);
1971 int gfc_specific_intrinsic (const char *);
1972 int gfc_intrinsic_name (const char *, int);
1973 int gfc_intrinsic_actual_ok (const char *, const bool);
1974 gfc_intrinsic_sym *gfc_find_function (const char *);
1976 match gfc_intrinsic_func_interface (gfc_expr *, int);
1977 match gfc_intrinsic_sub_interface (gfc_code *, int);
1979 /* match.c -- FIXME */
1980 void gfc_free_iterator (gfc_iterator *, int);
1981 void gfc_free_forall_iterator (gfc_forall_iterator *);
1982 void gfc_free_alloc_list (gfc_alloc *);
1983 void gfc_free_namelist (gfc_namelist *);
1984 void gfc_free_equiv (gfc_equiv *);
1985 void gfc_free_data (gfc_data *);
1986 void gfc_free_case_list (gfc_case *);
1988 /* matchexp.c -- FIXME too? */
1989 gfc_expr *gfc_get_parentheses (gfc_expr *);
1992 void gfc_free_omp_clauses (gfc_omp_clauses *);
1993 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
1994 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
1995 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
1996 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
1999 void gfc_free_actual_arglist (gfc_actual_arglist *);
2000 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2001 const char *gfc_extract_int (gfc_expr *, int *);
2002 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2004 gfc_expr *gfc_build_conversion (gfc_expr *);
2005 void gfc_free_ref_list (gfc_ref *);
2006 void gfc_type_convert_binary (gfc_expr *);
2007 int gfc_is_constant_expr (gfc_expr *);
2008 try gfc_simplify_expr (gfc_expr *, int);
2009 int gfc_has_vector_index (gfc_expr *);
2011 gfc_expr *gfc_get_expr (void);
2012 void gfc_free_expr (gfc_expr *);
2013 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2014 gfc_expr *gfc_int_expr (int);
2015 gfc_expr *gfc_logical_expr (int, locus *);
2016 mpz_t *gfc_copy_shape (mpz_t *, int);
2017 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2018 gfc_expr *gfc_copy_expr (gfc_expr *);
2020 try gfc_specification_expr (gfc_expr *);
2022 int gfc_numeric_ts (gfc_typespec *);
2023 int gfc_kind_max (gfc_expr *, gfc_expr *);
2025 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2026 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2027 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2028 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2030 gfc_expr *gfc_default_initializer (gfc_typespec *);
2031 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2033 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
2036 extern gfc_code new_st;
2038 void gfc_clear_new_st (void);
2039 gfc_code *gfc_get_code (void);
2040 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2041 void gfc_free_statement (gfc_code *);
2042 void gfc_free_statements (gfc_code *);
2045 try gfc_resolve_expr (gfc_expr *);
2046 void gfc_resolve (gfc_namespace *);
2047 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2048 int gfc_impure_variable (gfc_symbol *);
2049 int gfc_pure (gfc_symbol *);
2050 int gfc_elemental (gfc_symbol *);
2051 try gfc_resolve_iterator (gfc_iterator *, bool);
2052 try gfc_resolve_index (gfc_expr *, int);
2053 try gfc_resolve_dim_arg (gfc_expr *);
2054 int gfc_is_formal_arg (void);
2057 void gfc_free_array_spec (gfc_array_spec *);
2058 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2060 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2061 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2062 try gfc_resolve_array_spec (gfc_array_spec *, int);
2064 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2066 gfc_expr *gfc_start_constructor (bt, int, locus *);
2067 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2068 void gfc_free_constructor (gfc_constructor *);
2069 void gfc_simplify_iterator_var (gfc_expr *);
2070 try gfc_expand_constructor (gfc_expr *);
2071 int gfc_constant_ac (gfc_expr *);
2072 int gfc_expanded_ac (gfc_expr *);
2073 void gfc_resolve_character_array_constructor (gfc_expr *);
2074 try gfc_resolve_array_constructor (gfc_expr *);
2075 try gfc_check_constructor_type (gfc_expr *);
2076 try gfc_check_iter_variable (gfc_expr *);
2077 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2078 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
2079 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2080 try gfc_array_size (gfc_expr *, mpz_t *);
2081 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2082 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2083 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2084 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2085 gfc_constructor *gfc_get_constructor (void);
2086 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
2087 try spec_size (gfc_array_spec *, mpz_t *);
2088 int gfc_is_compile_time_shape (gfc_array_spec *);
2090 /* interface.c -- FIXME: some of these should be in symbol.c */
2091 void gfc_free_interface (gfc_interface *);
2092 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2093 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2094 void gfc_check_interfaces (gfc_namespace *);
2095 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2096 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2097 gfc_actual_arglist **);
2098 try gfc_extend_expr (gfc_expr *);
2099 void gfc_free_formal_arglist (gfc_formal_arglist *);
2100 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2101 try gfc_add_interface (gfc_symbol * sym);
2104 extern gfc_st_label format_asterisk;
2106 void gfc_free_open (gfc_open *);
2107 try gfc_resolve_open (gfc_open *);
2108 void gfc_free_close (gfc_close *);
2109 try gfc_resolve_close (gfc_close *);
2110 void gfc_free_filepos (gfc_filepos *);
2111 try gfc_resolve_filepos (gfc_filepos *);
2112 void gfc_free_inquire (gfc_inquire *);
2113 try gfc_resolve_inquire (gfc_inquire *);
2114 void gfc_free_dt (gfc_dt *);
2115 try gfc_resolve_dt (gfc_dt *);
2118 void gfc_module_init_2 (void);
2119 void gfc_module_done_2 (void);
2120 void gfc_dump_module (const char *, int);
2121 bool gfc_check_access (gfc_access, gfc_access);
2124 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2125 symbol_attribute gfc_expr_attr (gfc_expr *);
2128 void gfc_generate_code (gfc_namespace *);
2129 void gfc_generate_module_code (gfc_namespace *);
2132 typedef int (*compare_fn) (void *, void *);
2133 void gfc_insert_bbt (void *, void *, compare_fn);
2134 void gfc_delete_bbt (void *, void *, compare_fn);
2136 /* dump-parse-tree.c */
2137 void gfc_show_actual_arglist (gfc_actual_arglist *);
2138 void gfc_show_array_ref (gfc_array_ref *);
2139 void gfc_show_array_spec (gfc_array_spec *);
2140 void gfc_show_attr (symbol_attribute *);
2141 void gfc_show_code (int, gfc_code *);
2142 void gfc_show_components (gfc_symbol *);
2143 void gfc_show_constructor (gfc_constructor *);
2144 void gfc_show_equiv (gfc_equiv *);
2145 void gfc_show_expr (gfc_expr *);
2146 void gfc_show_namelist (gfc_namelist *);
2147 void gfc_show_namespace (gfc_namespace *);
2148 void gfc_show_ref (gfc_ref *);
2149 void gfc_show_symbol (gfc_symbol *);
2150 void gfc_show_typespec (gfc_typespec *);
2153 try gfc_parse_file (void);
2154 void global_used (gfc_gsymbol *, locus *);
2157 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2159 #endif /* GCC_GFORTRAN_H */