1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 #ifndef GCC_GFORTRAN_H
24 #define GCC_GFORTRAN_H
26 /* It's probably insane to have this large of a header file, but it
27 seemed like everything had to be recompiled anyway when a change
28 was made to a header file, and there were ordering issues with
29 multiple header files. Besides, Microsoft's winnt.h was 250k last
30 time I looked, so by comparison this is perfectly reasonable. */
34 #include "coretypes.h"
36 #include "splay-tree.h"
37 /* The following ifdefs are recommended by the autoconf documentation
38 for any code using alloca. */
40 /* AIX requires this to be the first thing in the file. */
42 #else /* not __GNUC__ */
45 #else /* do not HAVE_ALLOCA_H */
49 #ifndef alloca /* predefined by HP cc +Olibcalls */
51 #endif /* not predefined */
53 #endif /* do not HAVE_ALLOCA_H */
54 #endif /* not __GNUC__ */
56 /* Major control parameters. */
58 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
59 #define GFC_MAX_DIMENSIONS 7 /* Maximum dimensions in an array. */
60 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
62 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
65 #define free(x) Use_gfc_free_instead_of_free()
66 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
69 #define NULL ((void *) 0)
73 #define stringize(x) expand_macro(x)
74 #define expand_macro(x) # x
76 /* For a the runtime library, a standard prefix is a requirement to
77 avoid cluttering the namespace with things nobody asked for. It's
78 ugly to look at and a pain to type when you add the prefix by hand,
79 so we hide it behind a macro. */
80 #define PREFIX(x) "_gfortran_" x
83 #define BLANK_COMMON_NAME "__BLNK__"
85 /* Macro to initialize an mstring structure. */
86 #define minit(s, t) { s, NULL, t }
88 /* Structure for storing strings to be matched by gfc_match_string. */
98 /* Flags to specify which standard/extension contains a feature. */
99 #define GFC_STD_LEGACY (1<<6) /* Backward compatibility. */
100 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */
101 #define GFC_STD_F2003 (1<<4) /* New in F2003. */
102 /* Note that no features were obsoleted nor deleted in F2003. */
103 #define GFC_STD_F95 (1<<3) /* New in F95. */
104 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
105 #define GFC_STD_F95_OBS (1<<1) /* Obsoleted in F95. */
106 #define GFC_STD_F77 (1<<0) /* Up to and including F77. */
108 /* Bitmasks for the various FPE that can be enabled. */
109 #define GFC_FPE_INVALID (1<<0)
110 #define GFC_FPE_DENORMAL (1<<1)
111 #define GFC_FPE_ZERO (1<<2)
112 #define GFC_FPE_OVERFLOW (1<<3)
113 #define GFC_FPE_UNDERFLOW (1<<4)
114 #define GFC_FPE_PRECISION (1<<5)
116 /* Keep this in sync with libgfortran/io/io.h ! */
119 { CONVERT_NATIVE=0, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
123 /*************************** Enums *****************************/
125 /* The author remains confused to this day about the convention of
126 returning '0' for 'SUCCESS'... or was it the other way around? The
127 following enum makes things much more readable. We also start
128 values off at one instead of zero. */
131 { SUCCESS = 1, FAILURE }
134 /* This is returned by gfc_notification_std to know if, given the flags
135 that were given (-std=, -pedantic) we should issue an error, a warning
139 { SILENT, WARNING, ERROR }
142 /* Matchers return one of these three values. The difference between
143 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
144 successful, but that something non-syntactic is wrong and an error
145 has already been issued. */
148 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
152 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
156 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
157 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH
161 /* Expression node types. */
163 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
164 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
170 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
171 AS_ASSUMED_SIZE, AS_UNKNOWN
176 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
179 /* Statement label types. */
181 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
182 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
186 /* Intrinsic operators. */
188 { GFC_INTRINSIC_BEGIN = 0,
189 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
190 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
191 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
192 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
193 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
194 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
195 INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES,
196 GFC_INTRINSIC_END /* Sentinel */
201 /* Strings for all intrinsic operators. */
202 extern mstring intrinsic_operators[];
205 /* This macro is the number of intrinsic operators that exist.
206 Assumptions are made about the numbering of the interface_op enums. */
207 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
209 /* Arithmetic results. */
211 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
212 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
219 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
220 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
221 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
222 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
223 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
224 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
225 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
226 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
227 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
228 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
229 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
230 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
231 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
232 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
233 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
234 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
235 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
236 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
237 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
238 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
239 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
240 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
241 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE,
247 /* Types of interfaces that we can have. Assignment interfaces are
248 considered to be intrinsic operators. */
251 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
252 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
256 /* Symbol flavors: these are all mutually exclusive.
257 10 elements = 4 bits. */
258 typedef enum sym_flavor
260 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
261 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST
265 /* Procedure types. 7 elements = 3 bits. */
266 typedef enum procedure_type
267 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
268 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
273 typedef enum sym_intent
274 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
279 typedef enum gfc_access
280 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
284 /* Flags to keep track of where an interface came from.
285 4 elements = 2 bits. */
287 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
291 /* Strings for all symbol attributes. We use these for dumping the
292 parse tree, in error messages, and also when reading and writing
293 modules. In symbol.c. */
294 extern const mstring flavors[];
295 extern const mstring procedures[];
296 extern const mstring intents[];
297 extern const mstring access_types[];
298 extern const mstring ifsrc_types[];
300 /* Enumeration of all the generic intrinsic functions. Used by the
301 backend for identification of a function. */
303 enum gfc_generic_isym_id
305 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
306 the backend (eg. KIND). */
340 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
350 GFC_ISYM_DOT_PRODUCT,
438 GFC_ISYM_SET_EXPONENT,
470 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
472 /************************* Structures *****************************/
474 /* Used for keeping things in balanced binary trees. */
475 #define BBT_HEADER(self) int priority; struct self *left, *right
477 /* Symbol attribute structure. */
480 /* Variable attributes. */
481 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
482 optional:1, pointer:1, save:1, target:1, value:1, volatile_:1,
483 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1;
485 unsigned data:1, /* Symbol is named in a DATA statement. */
486 protected:1, /* Symbol has been marked as protected. */
487 use_assoc:1, /* Symbol has been use-associated. */
488 use_only:1; /* Symbol has been use-associated, with ONLY. */
490 unsigned in_namelist:1, in_common:1, in_equivalence:1;
491 unsigned function:1, subroutine:1, generic:1, generic_copy:1;
492 unsigned implicit_type:1; /* Type defined via implicit rules. */
493 unsigned untyped:1; /* No implicit type could be found. */
495 /* Function/subroutine attributes */
496 unsigned sequence:1, elemental:1, pure:1, recursive:1;
497 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1;
499 /* This is set if the subroutine doesn't return. Currently, this
500 is only possible for intrinsic subroutines. */
503 /* Set if this procedure is an alternate entry point. These procedures
504 don't have any code associated, and the backend will turn them into
505 thunks to the master function. */
508 /* Set if this is the master function for a procedure with multiple
510 unsigned entry_master:1;
512 /* Set if this is the master function for a function with multiple
513 entry points where characteristics of the entry points differ. */
514 unsigned mixed_entry_master:1;
516 /* Set if a function must always be referenced by an explicit interface. */
517 unsigned always_explicit:1;
519 /* Set if the symbol has been referenced in an expression. No further
520 modification of type or type parameters is permitted. */
521 unsigned referenced:1;
523 /* Set if the symbol has ambiguous interfaces. */
524 unsigned ambiguous_interfaces:1;
526 /* Set if the is the symbol for the main program. This is the least
527 cumbersome way to communicate this function property without
528 strcmp'ing with __MAIN everywhere. */
529 unsigned is_main_program:1;
531 /* Mutually exclusive multibit attributes. */
532 ENUM_BITFIELD (gfc_access) access:2;
533 ENUM_BITFIELD (sym_intent) intent:2;
534 ENUM_BITFIELD (sym_flavor) flavor:4;
535 ENUM_BITFIELD (ifsrc) if_source:2;
537 ENUM_BITFIELD (procedure_type) proc:3;
539 /* Special attributes for Cray pointers, pointees. */
540 unsigned cray_pointer:1, cray_pointee:1;
542 /* The symbol is a derived type with allocatable components, possibly nested.
544 unsigned alloc_comp:1;
546 /* The namespace where the VOLATILE attribute has been set. */
547 struct gfc_namespace *volatile_ns;
552 /* The following three structures are used to identify a location in
555 gfc_file is used to maintain a tree of the source files and how
556 they include each other
558 gfc_linebuf holds a single line of source code and information
559 which file it resides in
561 locus point to the sourceline and the character in the source
565 typedef struct gfc_file
567 struct gfc_file *included_by, *next, *up;
568 int inclusion_line, line;
572 typedef struct gfc_linebuf
574 #ifdef USE_MAPPED_LOCATION
575 source_location location;
579 struct gfc_file *file;
580 struct gfc_linebuf *next;
587 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
595 /* In order for the "gfc" format checking to work correctly, you must
596 have declared a typedef locus first. */
597 #if GCC_VERSION >= 4001
598 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
600 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
604 extern int gfc_suppress_error;
607 /* Character length structures hold the expression that gives the
608 length of a character variable. We avoid putting these into
609 gfc_typespec because doing so prevents us from doing structure
610 copies and forces us to deallocate any typespecs we create, as well
611 as structures that contain typespecs. They also can have multiple
612 character typespecs pointing to them.
614 These structures form a singly linked list within the current
615 namespace and are deallocated with the namespace. It is possible to
616 end up with gfc_charlen structures that have nothing pointing to them. */
618 typedef struct gfc_charlen
620 struct gfc_expr *length;
621 struct gfc_charlen *next;
628 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
630 /* Type specification structure. FIXME: derived and cl could be union??? */
635 struct gfc_symbol *derived;
636 gfc_charlen *cl; /* For character types only. */
640 /* Array specification. */
643 int rank; /* A rank of zero means that a variable is a scalar. */
645 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
647 /* These two fields are used with the Cray Pointer extension. */
648 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
649 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
650 AS_EXPLICIT, but we want to remember that we
656 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
659 /* Components of derived types. */
660 typedef struct gfc_component
665 int pointer, allocatable, dimension;
670 struct gfc_expr *initializer;
671 struct gfc_component *next;
675 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
677 /* Formal argument lists are lists of symbols. */
678 typedef struct gfc_formal_arglist
680 /* Symbol representing the argument at this position in the arglist. */
681 struct gfc_symbol *sym;
682 /* Points to the next formal argument. */
683 struct gfc_formal_arglist *next;
687 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
690 /* The gfc_actual_arglist structure is for actual arguments. */
691 typedef struct gfc_actual_arglist
694 /* Alternate return label when the expr member is null. */
695 struct gfc_st_label *label;
697 /* This is set to the type of an eventual omitted optional
698 argument. This is used to determine if a hidden string length
699 argument has to be added to a function call. */
702 struct gfc_expr *expr;
703 struct gfc_actual_arglist *next;
707 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
710 /* Because a symbol can belong to multiple namelists, they must be
711 linked externally to the symbol itself. */
712 typedef struct gfc_namelist
714 struct gfc_symbol *sym;
715 struct gfc_namelist *next;
719 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
724 OMP_LIST_FIRSTPRIVATE,
725 OMP_LIST_LASTPRIVATE,
726 OMP_LIST_COPYPRIVATE,
730 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
742 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
746 /* Because a symbol can belong to multiple namelists, they must be
747 linked externally to the symbol itself. */
748 typedef struct gfc_omp_clauses
750 struct gfc_expr *if_expr;
751 struct gfc_expr *num_threads;
752 gfc_namelist *lists[OMP_LIST_NUM];
761 struct gfc_expr *chunk_size;
769 bool nowait, ordered;
773 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
776 /* The gfc_st_label structure is a doubly linked list attached to a
777 namespace that records the usage of statement labels within that
779 /* TODO: Make format/statement specifics a union. */
780 typedef struct gfc_st_label
782 BBT_HEADER(gfc_st_label);
786 gfc_sl_type defined, referenced;
788 struct gfc_expr *format;
797 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
798 typedef struct gfc_interface
800 struct gfc_symbol *sym;
802 struct gfc_interface *next;
806 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
809 /* User operator nodes. These are like stripped down symbols. */
814 gfc_interface *operator;
815 struct gfc_namespace *ns;
820 /* Symbol nodes. These are important things. They are what the
821 standard refers to as "entities". The possibly multiple names that
822 refer to the same entity are accomplished by a binary tree of
823 symtree structures that is balanced by the red-black method-- more
824 than one symtree node can point to any given symbol. */
826 typedef struct gfc_symbol
828 const char *name; /* Primary name, before renaming */
829 const char *module; /* Module this symbol came from */
833 symbol_attribute attr;
835 /* The interface member points to the formal argument list if the
836 symbol is a function or subroutine name. If the symbol is a
837 generic name, the generic member points to the list of
840 gfc_interface *generic;
841 gfc_access component_access;
843 gfc_formal_arglist *formal;
844 struct gfc_namespace *formal_ns;
846 struct gfc_expr *value; /* Parameter/Initializer value */
848 struct gfc_symbol *result; /* function result symbol */
849 gfc_component *components; /* Derived type components */
851 /* Defined only for Cray pointees; points to their pointer. */
852 struct gfc_symbol *cp_pointer;
854 struct gfc_symbol *common_next; /* Links for COMMON syms */
856 /* This is in fact a gfc_common_head but it is only used for pointer
857 comparisons to check if symbols are in the same common block. */
858 struct gfc_common_head* common_head;
860 /* Make sure setup code for dummy arguments is generated in the correct
866 gfc_namelist *namelist, *namelist_tail;
868 /* Change management fields. Symbols that might be modified by the
869 current statement have the mark member nonzero and are kept in a
870 singly linked list through the tlink field. Of these symbols,
871 symbols with old_symbol equal to NULL are symbols created within
872 the current statement. Otherwise, old_symbol points to a copy of
875 struct gfc_symbol *old_symbol, *tlink;
876 unsigned mark:1, new:1;
877 /* Nonzero if all equivalences associated with this symbol have been
879 unsigned equiv_built:1;
880 /* Set if this variable is used as an index name in a FORALL. */
881 unsigned forall_index:1;
883 struct gfc_namespace *ns; /* namespace containing this symbol */
890 /* This structure is used to keep track of symbols in common blocks. */
892 typedef struct gfc_common_head
895 char use_assoc, saved, threadprivate;
896 char name[GFC_MAX_SYMBOL_LEN + 1];
897 struct gfc_symbol *head;
901 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
904 /* A list of all the alternate entry points for a procedure. */
906 typedef struct gfc_entry_list
908 /* The symbol for this entry point. */
910 /* The zero-based id of this entry point. */
912 /* The LABEL_EXPR marking this entry point. */
914 /* The nest item in the list. */
915 struct gfc_entry_list *next;
919 #define gfc_get_entry_list() \
920 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
922 /* Within a namespace, symbols are pointed to by symtree nodes that
923 are linked together in a balanced binary tree. There can be
924 several symtrees pointing to the same symbol node via USE
927 typedef struct gfc_symtree
929 BBT_HEADER (gfc_symtree);
934 gfc_symbol *sym; /* Symbol associated with this node */
936 gfc_common_head *common;
943 /* A linked list of derived types in the namespace. */
944 typedef struct gfc_dt_list
946 struct gfc_symbol *derived;
947 struct gfc_dt_list *next;
951 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
954 /* A namespace describes the contents of procedure, module or
956 /* ??? Anything else use these? */
958 typedef struct gfc_namespace
960 /* Tree containing all the symbols in this namespace. */
961 gfc_symtree *sym_root;
962 /* Tree containing all the user-defined operators in the namespace. */
963 gfc_symtree *uop_root;
964 /* Tree containing all the common blocks. */
965 gfc_symtree *common_root;
967 /* If set_flag[letter] is set, an implicit type has been set for letter. */
968 int set_flag[GFC_LETTERS];
969 /* Keeps track of the implicit types associated with the letters. */
970 gfc_typespec default_type[GFC_LETTERS];
972 /* If this is a namespace of a procedure, this points to the procedure. */
973 struct gfc_symbol *proc_name;
974 /* If this is the namespace of a unit which contains executable
975 code, this points to it. */
976 struct gfc_code *code;
978 /* Points to the equivalences set up in this namespace. */
979 struct gfc_equiv *equiv;
981 /* Points to the equivalence groups produced by trans_common. */
982 struct gfc_equiv_list *equiv_lists;
984 gfc_interface *operator[GFC_INTRINSIC_OPS];
986 /* Points to the parent namespace, i.e. the namespace of a module or
987 procedure in which the procedure belonging to this namespace is
988 contained. The parent namespace points to this namespace either
989 directly via CONTAINED, or indirectly via the chain built by
991 struct gfc_namespace *parent;
992 /* CONTAINED points to the first contained namespace. Sibling
993 namespaces are chained via SIBLING. */
994 struct gfc_namespace *contained, *sibling;
996 gfc_common_head blank_common;
997 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
999 gfc_st_label *st_labels;
1000 /* This list holds information about all the data initializers in
1002 struct gfc_data *data;
1004 gfc_charlen *cl_list;
1006 int save_all, seen_save, seen_implicit_none;
1008 /* Normally we don't need to refcount namespaces. However when we read
1009 a module containing a function with multiple entry points, this
1010 will appear as several functions with the same formal namespace. */
1013 /* A list of all alternate entry points to this procedure (or NULL). */
1014 gfc_entry_list *entries;
1016 /* A list of all derived types in this procedure (or NULL). */
1017 gfc_dt_list *derived_types;
1019 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1022 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1027 extern gfc_namespace *gfc_current_ns;
1029 /* Global symbols are symbols of global scope. Currently we only use
1030 this to detect collisions already when parsing.
1031 TODO: Extend to verify procedure calls. */
1033 typedef struct gfc_gsymbol
1035 BBT_HEADER(gfc_gsymbol);
1038 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1039 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1046 extern gfc_gsymbol *gfc_gsym_root;
1048 /* Information on interfaces being built. */
1051 interface_type type;
1055 gfc_intrinsic_op op;
1059 extern gfc_interface_info current_interface;
1062 /* Array reference. */
1063 typedef struct gfc_array_ref
1066 int dimen; /* # of components in the reference */
1070 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1071 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1072 *stride[GFC_MAX_DIMENSIONS];
1075 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1076 dimen_type[GFC_MAX_DIMENSIONS];
1078 struct gfc_expr *offset;
1082 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1085 /* Component reference nodes. A variable is stored as an expression
1086 node that points to the base symbol. After that, a singly linked
1087 list of component reference nodes gives the variable's complete
1088 resolution. The array_ref component may be present and comes
1089 before the component component. */
1092 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1095 typedef struct gfc_ref
1101 struct gfc_array_ref ar;
1105 gfc_component *component;
1112 struct gfc_expr *start, *end; /* Substring */
1113 gfc_charlen *length;
1120 struct gfc_ref *next;
1124 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1127 /* Structures representing intrinsic symbols and their arguments lists. */
1128 typedef struct gfc_intrinsic_arg
1130 char name[GFC_MAX_SYMBOL_LEN + 1];
1134 gfc_actual_arglist *actual;
1136 struct gfc_intrinsic_arg *next;
1142 /* Specifies the various kinds of check functions used to verify the
1143 argument lists of intrinsic functions. fX with X an integer refer
1144 to check functions of intrinsics with X arguments. f1m is used for
1145 the MAX and MIN intrinsics which can have an arbitrary number of
1146 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1147 these have special semantics. */
1152 try (*f1)(struct gfc_expr *);
1153 try (*f1m)(gfc_actual_arglist *);
1154 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1155 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1156 try (*f3ml)(gfc_actual_arglist *);
1157 try (*f3red)(gfc_actual_arglist *);
1158 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1160 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1161 struct gfc_expr *, struct gfc_expr *);
1165 /* Like gfc_check_f, these specify the type of the simplification
1166 function associated with an intrinsic. The fX are just like in
1167 gfc_check_f. cc is used for type conversion functions. */
1171 struct gfc_expr *(*f0)(void);
1172 struct gfc_expr *(*f1)(struct gfc_expr *);
1173 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1174 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1176 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1177 struct gfc_expr *, struct gfc_expr *);
1178 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1179 struct gfc_expr *, struct gfc_expr *,
1181 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1185 /* Again like gfc_check_f, these specify the type of the resolution
1186 function associated with an intrinsic. The fX are just like in
1187 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1192 void (*f0)(struct gfc_expr *);
1193 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1194 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1195 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1196 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1198 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1199 struct gfc_expr *, struct gfc_expr *);
1200 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1201 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1202 void (*s1)(struct gfc_code *);
1207 typedef struct gfc_intrinsic_sym
1209 const char *name, *lib_name;
1210 gfc_intrinsic_arg *formal;
1212 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1214 gfc_simplify_f simplify;
1216 gfc_resolve_f resolve;
1217 struct gfc_intrinsic_sym *specific_head, *next;
1218 gfc_generic_isym_id generic_id;
1224 /* Expression nodes. The expression node types deserve explanations,
1225 since the last couple can be easily misconstrued:
1227 EXPR_OP Operator node pointing to one or two other nodes
1228 EXPR_FUNCTION Function call, symbol points to function's name
1229 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1230 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1231 which expresses structure, array and substring refs.
1232 EXPR_NULL The NULL pointer value (which also has a basic type).
1233 EXPR_SUBSTRING A substring of a constant string
1234 EXPR_STRUCTURE A structure constructor
1235 EXPR_ARRAY An array constructor. */
1239 #define GFC_RND_MODE GMP_RNDN
1241 typedef struct gfc_expr
1245 gfc_typespec ts; /* These two refer to the overall expression */
1248 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1250 /* Nonnull for functions and structure constructors */
1251 gfc_symtree *symtree;
1257 /* True if it is converted from Hollerith constant. */
1258 unsigned int from_H : 1;
1259 /* True if the expression is a call to a function that returns an array,
1260 and if we have decided not to allocate temporary data for that array. */
1261 unsigned int inline_noncopying_intrinsic : 1;
1262 /* Used to quickly find a given constructor by it's offset. */
1263 splay_tree con_by_offset;
1280 gfc_intrinsic_op operator;
1282 struct gfc_expr *op1, *op2;
1288 gfc_actual_arglist *actual;
1289 const char *name; /* Points to the ultimate name of the function */
1290 gfc_intrinsic_sym *isym;
1302 struct gfc_constructor *constructor;
1310 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1312 /* Structures for information associated with different kinds of
1313 numbers. The first set of integer parameters define all there is
1314 to know about a particular kind. The rest of the elements are
1315 computed from the first elements. */
1319 /* Values really representable by the target. */
1320 mpz_t huge, pedantic_min_int, min_int;
1322 int kind, radix, digits, bit_size, range;
1324 /* True if the C type of the given name maps to this precision.
1325 Note that more than one bit can be set. */
1326 unsigned int c_char : 1;
1327 unsigned int c_short : 1;
1328 unsigned int c_int : 1;
1329 unsigned int c_long : 1;
1330 unsigned int c_long_long : 1;
1334 extern gfc_integer_info gfc_integer_kinds[];
1341 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1342 unsigned int c_bool : 1;
1346 extern gfc_logical_info gfc_logical_kinds[];
1351 mpfr_t epsilon, huge, tiny, subnormal;
1352 int kind, radix, digits, min_exponent, max_exponent;
1353 int range, precision;
1355 /* The precision of the type as reported by GET_MODE_PRECISION. */
1358 /* True if the C type of the given name maps to this precision.
1359 Note that more than one bit can be set. */
1360 unsigned int c_float : 1;
1361 unsigned int c_double : 1;
1362 unsigned int c_long_double : 1;
1366 extern gfc_real_info gfc_real_kinds[];
1369 /* Equivalence structures. Equivalent lvalues are linked along the
1370 *eq pointer, equivalence sets are strung along the *next node. */
1371 typedef struct gfc_equiv
1373 struct gfc_equiv *next, *eq;
1380 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1382 /* Holds a single equivalence member after processing. */
1383 typedef struct gfc_equiv_info
1386 HOST_WIDE_INT offset;
1387 HOST_WIDE_INT length;
1388 struct gfc_equiv_info *next;
1391 /* Holds equivalence groups, after they have been processed. */
1392 typedef struct gfc_equiv_list
1394 gfc_equiv_info *equiv;
1395 struct gfc_equiv_list *next;
1398 /* gfc_case stores the selector list of a case statement. The *low
1399 and *high pointers can point to the same expression in the case of
1400 a single value. If *high is NULL, the selection is from *low
1401 upwards, if *low is NULL the selection is *high downwards.
1403 This structure has separate fields to allow single and double linked
1404 lists of CASEs at the same time. The singe linked list along the NEXT
1405 field is a list of cases for a single CASE label. The double linked
1406 list along the LEFT/RIGHT fields is used to detect overlap and to
1407 build a table of the cases for SELECT constructs with a CHARACTER
1410 typedef struct gfc_case
1412 /* Where we saw this case. */
1416 /* Case range values. If (low == high), it's a single value. If one of
1417 the labels is NULL, it's an unbounded case. If both are NULL, this
1418 represents the default case. */
1419 gfc_expr *low, *high;
1421 /* Next case label in the list of cases for a single CASE label. */
1422 struct gfc_case *next;
1424 /* Used for detecting overlap, and for code generation. */
1425 struct gfc_case *left, *right;
1427 /* True if this case label can never be matched. */
1432 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1437 gfc_expr *var, *start, *end, *step;
1441 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1444 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1446 typedef struct gfc_alloc
1449 struct gfc_alloc *next;
1453 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1458 gfc_expr *unit, *file, *status, *access, *form, *recl,
1459 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1467 gfc_expr *unit, *status, *iostat, *iomsg;
1475 gfc_expr *unit, *iostat, *iomsg;
1483 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1484 *name, *access, *sequential, *direct, *form, *formatted,
1485 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1486 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1496 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1498 gfc_symbol *namelist;
1499 /* A format_label of `format_asterisk' indicates the "*" format */
1500 gfc_st_label *format_label;
1501 gfc_st_label *err, *end, *eor;
1503 locus eor_where, end_where, err_where;
1508 typedef struct gfc_forall_iterator
1510 gfc_expr *var, *start, *end, *stride;
1511 struct gfc_forall_iterator *next;
1513 gfc_forall_iterator;
1516 /* Executable statements that fill gfc_code structures. */
1519 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1520 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1521 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1522 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1523 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1524 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1525 EXEC_OPEN, EXEC_CLOSE,
1526 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1527 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1528 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1529 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1530 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1531 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1532 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1537 typedef struct gfc_code
1541 struct gfc_code *block, *next;
1544 gfc_st_label *here, *label, *label2, *label3;
1545 gfc_symtree *symtree;
1546 gfc_expr *expr, *expr2;
1547 /* A name isn't sufficient to identify a subroutine, we need the actual
1548 symbol for the interface definition.
1549 const char *sub_name; */
1550 gfc_symbol *resolved_sym;
1554 gfc_actual_arglist *actual;
1555 gfc_case *case_list;
1556 gfc_iterator *iterator;
1557 gfc_alloc *alloc_list;
1560 gfc_filepos *filepos;
1561 gfc_inquire *inquire;
1563 gfc_forall_iterator *forall_iterator;
1564 struct gfc_code *whichloop;
1566 gfc_entry_list *entry;
1567 gfc_omp_clauses *omp_clauses;
1568 const char *omp_name;
1569 gfc_namelist *omp_namelist;
1572 ext; /* Points to additional structures required by statement */
1574 /* Backend_decl is used for cycle and break labels in do loops, and
1575 probably for other constructs as well, once we translate them. */
1581 /* Storage for DATA statements. */
1582 typedef struct gfc_data_variable
1586 struct gfc_data_variable *list, *next;
1591 typedef struct gfc_data_value
1593 unsigned int repeat;
1595 struct gfc_data_value *next;
1600 typedef struct gfc_data
1602 gfc_data_variable *var;
1603 gfc_data_value *value;
1606 struct gfc_data *next;
1610 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1611 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1612 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1615 /* Structure for holding compile options */
1619 gfc_source_form source_form;
1620 /* Maximum line lengths in fixed- and free-form source, respectively.
1621 When fixed_line_length or free_line_length are 0, the whole line is used,
1622 regardless of length.
1624 If the user requests a fixed_line_length <7 then gfc_init_options()
1625 emits a fatal error. */
1626 int fixed_line_length;
1627 int free_line_length;
1628 /* Maximum number of continuation lines in fixed- and free-form source,
1630 int max_continue_fixed;
1631 int max_continue_free;
1632 int max_identifier_length;
1637 int warn_conversion;
1638 int warn_implicit_interface;
1639 int warn_line_truncation;
1640 int warn_surprising;
1643 int warn_character_truncation;
1646 int flag_all_intrinsics;
1647 int flag_default_double;
1648 int flag_default_integer;
1649 int flag_default_real;
1651 int flag_underscoring;
1652 int flag_second_underscore;
1653 int flag_implicit_none;
1654 int flag_max_stack_var_size;
1655 int flag_range_check;
1656 int flag_pack_derived;
1657 int flag_repack_arrays;
1658 int flag_preprocessed;
1662 int flag_allow_leading_underscore;
1664 int flag_external_blas;
1665 int blas_matmul_limit;
1666 int flag_cray_pointer;
1674 int warn_nonstd_intrinsics;
1678 int max_subrecord_length;
1682 extern gfc_option_t gfc_option;
1684 /* Constructor nodes for array and structure constructors. */
1685 typedef struct gfc_constructor
1688 gfc_iterator *iterator;
1690 struct gfc_constructor *next;
1693 mpz_t offset; /* Record the offset of array element which appears in
1694 data statement like "data a(5)/4/". */
1695 gfc_component *component; /* Record the component being initialized. */
1698 mpz_t repeat; /* Record the repeat number of initial values in data
1699 statement like "data a/5*10/". */
1704 typedef struct iterator_stack
1706 gfc_symtree *variable;
1708 struct iterator_stack *prev;
1711 extern iterator_stack *iter_stack;
1713 /************************ Function prototypes *************************/
1716 void gfc_formalize_init_value (gfc_symbol *);
1717 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1718 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1719 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1720 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1723 bool gfc_in_match_data (void);
1724 void gfc_set_in_match_data (bool);
1727 void gfc_scanner_done_1 (void);
1728 void gfc_scanner_init_1 (void);
1730 void gfc_add_include_path (const char *, bool);
1731 void gfc_add_intrinsic_modules_path (const char *);
1732 void gfc_release_include_path (void);
1733 FILE *gfc_open_included_file (const char *, bool, bool);
1734 FILE *gfc_open_intrinsic_module (const char *);
1736 int gfc_at_end (void);
1737 int gfc_at_eof (void);
1738 int gfc_at_bol (void);
1739 int gfc_at_eol (void);
1740 void gfc_advance_line (void);
1741 int gfc_check_include (void);
1743 void gfc_skip_comments (void);
1744 int gfc_next_char_literal (int);
1745 int gfc_next_char (void);
1746 int gfc_peek_char (void);
1747 void gfc_error_recovery (void);
1748 void gfc_gobble_whitespace (void);
1749 try gfc_new_file (void);
1750 const char * gfc_read_orig_filename (const char *, const char **);
1752 extern gfc_source_form gfc_current_form;
1753 extern const char *gfc_source_file;
1754 extern locus gfc_current_locus;
1757 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1758 void gfc_free (void *);
1759 int gfc_terminal_width(void);
1760 void gfc_clear_ts (gfc_typespec *);
1761 FILE *gfc_open_file (const char *);
1762 const char *gfc_basic_typename (bt);
1763 const char *gfc_typename (gfc_typespec *);
1765 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1766 "=" : gfc_code2string (intrinsic_operators, OP))
1768 const char *gfc_code2string (const mstring *, int);
1769 int gfc_string2code (const mstring *, const char *);
1770 const char *gfc_intent_string (sym_intent);
1772 void gfc_init_1 (void);
1773 void gfc_init_2 (void);
1774 void gfc_done_1 (void);
1775 void gfc_done_2 (void);
1778 unsigned int gfc_init_options (unsigned int, const char **);
1779 int gfc_handle_option (size_t, const char *, int);
1780 bool gfc_post_options (const char **);
1783 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1787 typedef struct gfc_error_buf
1790 size_t allocated, index;
1794 void gfc_error_init_1 (void);
1795 void gfc_buffer_error (int);
1797 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1798 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1799 void gfc_clear_warning (void);
1800 void gfc_warning_check (void);
1802 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1803 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1804 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1805 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1806 void gfc_clear_error (void);
1807 int gfc_error_check (void);
1808 int gfc_error_flag_test (void);
1810 notification gfc_notification_std (int);
1811 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1813 /* A general purpose syntax error. */
1814 #define gfc_syntax_error(ST) \
1815 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1817 void gfc_push_error (gfc_error_buf *);
1818 void gfc_pop_error (gfc_error_buf *);
1819 void gfc_free_error (gfc_error_buf *);
1821 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1822 void gfc_status_char (char);
1824 void gfc_get_errors (int *, int *);
1827 void gfc_arith_init_1 (void);
1828 void gfc_arith_done_1 (void);
1829 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1830 arith gfc_check_integer_range (mpz_t p, int kind);
1833 int gfc_validate_kind (bt, int, bool);
1834 extern int gfc_index_integer_kind;
1835 extern int gfc_default_integer_kind;
1836 extern int gfc_max_integer_kind;
1837 extern int gfc_default_real_kind;
1838 extern int gfc_default_double_kind;
1839 extern int gfc_default_character_kind;
1840 extern int gfc_default_logical_kind;
1841 extern int gfc_default_complex_kind;
1842 extern int gfc_c_int_kind;
1843 extern int gfc_intio_kind;
1844 extern int gfc_numeric_storage_size;
1845 extern int gfc_character_storage_size;
1848 void gfc_clear_new_implicit (void);
1849 try gfc_add_new_implicit_range (int, int);
1850 try gfc_merge_new_implicit (gfc_typespec *);
1851 void gfc_set_implicit_none (void);
1853 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1854 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1856 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1857 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1859 void gfc_set_sym_referenced (gfc_symbol * sym);
1861 try gfc_add_attribute (symbol_attribute *, locus *);
1862 try gfc_add_allocatable (symbol_attribute *, locus *);
1863 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1864 try gfc_add_external (symbol_attribute *, locus *);
1865 try gfc_add_intrinsic (symbol_attribute *, locus *);
1866 try gfc_add_optional (symbol_attribute *, locus *);
1867 try gfc_add_pointer (symbol_attribute *, locus *);
1868 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1869 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1870 try gfc_mod_pointee_as (gfc_array_spec *as);
1871 try gfc_add_protected (symbol_attribute *, const char *, locus *);
1872 try gfc_add_result (symbol_attribute *, const char *, locus *);
1873 try gfc_add_save (symbol_attribute *, const char *, locus *);
1874 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
1875 try gfc_add_saved_common (symbol_attribute *, locus *);
1876 try gfc_add_target (symbol_attribute *, locus *);
1877 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1878 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1879 try gfc_add_common (symbol_attribute *, locus *);
1880 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1881 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1882 try gfc_add_data (symbol_attribute *, const char *, locus *);
1883 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1884 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1885 try gfc_add_elemental (symbol_attribute *, locus *);
1886 try gfc_add_pure (symbol_attribute *, locus *);
1887 try gfc_add_recursive (symbol_attribute *, locus *);
1888 try gfc_add_function (symbol_attribute *, const char *, locus *);
1889 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1890 try gfc_add_value (symbol_attribute *, const char *, locus *);
1891 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
1893 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1894 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1895 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1896 try gfc_add_procedure (symbol_attribute *, procedure_type,
1897 const char *, locus *);
1898 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1899 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1900 gfc_formal_arglist *, locus *);
1901 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1903 void gfc_clear_attr (symbol_attribute *);
1904 try gfc_missing_attr (symbol_attribute *, locus *);
1905 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1907 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1908 gfc_symbol *gfc_use_derived (gfc_symbol *);
1909 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1910 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1912 gfc_st_label *gfc_get_st_label (int);
1913 void gfc_free_st_label (gfc_st_label *);
1914 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1915 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1917 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1918 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1919 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1920 gfc_user_op *gfc_get_uop (const char *);
1921 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1922 void gfc_free_symbol (gfc_symbol *);
1923 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1924 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1925 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1926 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1927 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1928 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1929 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1931 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1933 void gfc_undo_symbols (void);
1934 void gfc_commit_symbols (void);
1935 void gfc_commit_symbol (gfc_symbol * sym);
1936 void gfc_free_namespace (gfc_namespace *);
1938 void gfc_symbol_init_2 (void);
1939 void gfc_symbol_done_2 (void);
1941 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1942 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1943 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1944 void gfc_save_all (gfc_namespace *);
1946 void gfc_symbol_state (void);
1948 gfc_gsymbol *gfc_get_gsymbol (const char *);
1949 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1952 extern int gfc_init_expr;
1954 /* Given a symbol that we have decided is intrinsic, mark it as such
1955 by placing it into a special module that is otherwise impossible to
1958 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1960 void gfc_intrinsic_init_1 (void);
1961 void gfc_intrinsic_done_1 (void);
1963 char gfc_type_letter (bt);
1964 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1965 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1966 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1967 int gfc_generic_intrinsic (const char *);
1968 int gfc_specific_intrinsic (const char *);
1969 int gfc_intrinsic_name (const char *, int);
1970 int gfc_intrinsic_actual_ok (const char *, const bool);
1971 gfc_intrinsic_sym *gfc_find_function (const char *);
1973 match gfc_intrinsic_func_interface (gfc_expr *, int);
1974 match gfc_intrinsic_sub_interface (gfc_code *, int);
1976 /* match.c -- FIXME */
1977 void gfc_free_iterator (gfc_iterator *, int);
1978 void gfc_free_forall_iterator (gfc_forall_iterator *);
1979 void gfc_free_alloc_list (gfc_alloc *);
1980 void gfc_free_namelist (gfc_namelist *);
1981 void gfc_free_equiv (gfc_equiv *);
1982 void gfc_free_data (gfc_data *);
1983 void gfc_free_case_list (gfc_case *);
1985 /* matchexp.c -- FIXME too? */
1986 gfc_expr *gfc_get_parentheses (gfc_expr *);
1989 void gfc_free_omp_clauses (gfc_omp_clauses *);
1990 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
1991 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
1992 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
1993 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
1996 void gfc_free_actual_arglist (gfc_actual_arglist *);
1997 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1998 const char *gfc_extract_int (gfc_expr *, int *);
1999 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2001 gfc_expr *gfc_build_conversion (gfc_expr *);
2002 void gfc_free_ref_list (gfc_ref *);
2003 void gfc_type_convert_binary (gfc_expr *);
2004 int gfc_is_constant_expr (gfc_expr *);
2005 try gfc_simplify_expr (gfc_expr *, int);
2006 int gfc_has_vector_index (gfc_expr *);
2008 gfc_expr *gfc_get_expr (void);
2009 void gfc_free_expr (gfc_expr *);
2010 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2011 gfc_expr *gfc_int_expr (int);
2012 gfc_expr *gfc_logical_expr (int, locus *);
2013 mpz_t *gfc_copy_shape (mpz_t *, int);
2014 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2015 gfc_expr *gfc_copy_expr (gfc_expr *);
2017 try gfc_specification_expr (gfc_expr *);
2019 int gfc_numeric_ts (gfc_typespec *);
2020 int gfc_kind_max (gfc_expr *, gfc_expr *);
2022 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2023 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2024 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2025 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2027 gfc_expr *gfc_default_initializer (gfc_typespec *);
2028 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2030 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
2033 extern gfc_code new_st;
2035 void gfc_clear_new_st (void);
2036 gfc_code *gfc_get_code (void);
2037 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2038 void gfc_free_statement (gfc_code *);
2039 void gfc_free_statements (gfc_code *);
2042 try gfc_resolve_expr (gfc_expr *);
2043 void gfc_resolve (gfc_namespace *);
2044 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2045 int gfc_impure_variable (gfc_symbol *);
2046 int gfc_pure (gfc_symbol *);
2047 int gfc_elemental (gfc_symbol *);
2048 try gfc_resolve_iterator (gfc_iterator *, bool);
2049 try gfc_resolve_index (gfc_expr *, int);
2050 try gfc_resolve_dim_arg (gfc_expr *);
2051 int gfc_is_formal_arg (void);
2054 void gfc_free_array_spec (gfc_array_spec *);
2055 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2057 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2058 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2059 try gfc_resolve_array_spec (gfc_array_spec *, int);
2061 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2063 gfc_expr *gfc_start_constructor (bt, int, locus *);
2064 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2065 void gfc_free_constructor (gfc_constructor *);
2066 void gfc_simplify_iterator_var (gfc_expr *);
2067 try gfc_expand_constructor (gfc_expr *);
2068 int gfc_constant_ac (gfc_expr *);
2069 int gfc_expanded_ac (gfc_expr *);
2070 void gfc_resolve_character_array_constructor (gfc_expr *);
2071 try gfc_resolve_array_constructor (gfc_expr *);
2072 try gfc_check_constructor_type (gfc_expr *);
2073 try gfc_check_iter_variable (gfc_expr *);
2074 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2075 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
2076 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2077 try gfc_array_size (gfc_expr *, mpz_t *);
2078 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2079 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2080 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2081 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2082 gfc_constructor *gfc_get_constructor (void);
2083 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
2084 try spec_size (gfc_array_spec *, mpz_t *);
2085 int gfc_is_compile_time_shape (gfc_array_spec *);
2087 /* interface.c -- FIXME: some of these should be in symbol.c */
2088 void gfc_free_interface (gfc_interface *);
2089 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2090 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2091 void gfc_check_interfaces (gfc_namespace *);
2092 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2093 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2094 gfc_actual_arglist **);
2095 try gfc_extend_expr (gfc_expr *);
2096 void gfc_free_formal_arglist (gfc_formal_arglist *);
2097 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2098 try gfc_add_interface (gfc_symbol * sym);
2101 extern gfc_st_label format_asterisk;
2103 void gfc_free_open (gfc_open *);
2104 try gfc_resolve_open (gfc_open *);
2105 void gfc_free_close (gfc_close *);
2106 try gfc_resolve_close (gfc_close *);
2107 void gfc_free_filepos (gfc_filepos *);
2108 try gfc_resolve_filepos (gfc_filepos *);
2109 void gfc_free_inquire (gfc_inquire *);
2110 try gfc_resolve_inquire (gfc_inquire *);
2111 void gfc_free_dt (gfc_dt *);
2112 try gfc_resolve_dt (gfc_dt *);
2115 void gfc_module_init_2 (void);
2116 void gfc_module_done_2 (void);
2117 void gfc_dump_module (const char *, int);
2118 bool gfc_check_access (gfc_access, gfc_access);
2121 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2122 symbol_attribute gfc_expr_attr (gfc_expr *);
2125 void gfc_generate_code (gfc_namespace *);
2126 void gfc_generate_module_code (gfc_namespace *);
2129 typedef int (*compare_fn) (void *, void *);
2130 void gfc_insert_bbt (void *, void *, compare_fn);
2131 void gfc_delete_bbt (void *, void *, compare_fn);
2133 /* dump-parse-tree.c */
2134 void gfc_show_actual_arglist (gfc_actual_arglist *);
2135 void gfc_show_array_ref (gfc_array_ref *);
2136 void gfc_show_array_spec (gfc_array_spec *);
2137 void gfc_show_attr (symbol_attribute *);
2138 void gfc_show_code (int, gfc_code *);
2139 void gfc_show_components (gfc_symbol *);
2140 void gfc_show_constructor (gfc_constructor *);
2141 void gfc_show_equiv (gfc_equiv *);
2142 void gfc_show_expr (gfc_expr *);
2143 void gfc_show_namelist (gfc_namelist *);
2144 void gfc_show_namespace (gfc_namespace *);
2145 void gfc_show_ref (gfc_ref *);
2146 void gfc_show_symbol (gfc_symbol *);
2147 void gfc_show_typespec (gfc_typespec *);
2150 try gfc_parse_file (void);
2151 void global_used (gfc_gsymbol *, locus *);
2154 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2156 #endif /* GCC_GFORTRAN_H */