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 free(x) Use_gfc_free_instead_of_free()
63 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
66 #define NULL ((void *) 0)
70 #define stringize(x) expand_macro(x)
71 #define expand_macro(x) # x
73 /* For a the runtime library, a standard prefix is a requirement to
74 avoid cluttering the namespace with things nobody asked for. It's
75 ugly to look at and a pain to type when you add the prefix by hand,
76 so we hide it behind a macro. */
77 #define PREFIX(x) "_gfortran_" x
80 #define BLANK_COMMON_NAME "__BLNK__"
82 /* Macro to initialize an mstring structure. */
83 #define minit(s, t) { s, NULL, t }
85 /* Structure for storing strings to be matched by gfc_match_string. */
95 /* Flags to specify which standard/extension contains a feature. */
96 #define GFC_STD_LEGACY (1<<6) /* Backward compatibility. */
97 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */
98 #define GFC_STD_F2003 (1<<4) /* New in F2003. */
99 /* Note that no features were obsoleted nor deleted in F2003. */
100 #define GFC_STD_F95 (1<<3) /* New in F95. */
101 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
102 #define GFC_STD_F95_OBS (1<<1) /* Obsoleted in F95. */
103 #define GFC_STD_F77 (1<<0) /* Up to and including F77. */
105 /* Bitmasks for the various FPE that can be enabled. */
106 #define GFC_FPE_INVALID (1<<0)
107 #define GFC_FPE_DENORMAL (1<<1)
108 #define GFC_FPE_ZERO (1<<2)
109 #define GFC_FPE_OVERFLOW (1<<3)
110 #define GFC_FPE_UNDERFLOW (1<<4)
111 #define GFC_FPE_PRECISION (1<<5)
113 /* Keep this in sync with libgfortran/io/io.h ! */
116 { CONVERT_NATIVE=0, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
120 /*************************** Enums *****************************/
122 /* The author remains confused to this day about the convention of
123 returning '0' for 'SUCCESS'... or was it the other way around? The
124 following enum makes things much more readable. We also start
125 values off at one instead of zero. */
128 { SUCCESS = 1, FAILURE }
131 /* This is returned by gfc_notification_std to know if, given the flags
132 that were given (-std=, -pedantic) we should issue an error, a warning
136 { SILENT, WARNING, ERROR }
139 /* Matchers return one of these three values. The difference between
140 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
141 successful, but that something non-syntactic is wrong and an error
142 has already been issued. */
145 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
149 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
153 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
154 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH
158 /* Expression node types. */
160 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
161 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
167 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
168 AS_ASSUMED_SIZE, AS_UNKNOWN
173 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
176 /* Statement label types. */
178 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
179 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
183 /* Intrinsic operators. */
185 { GFC_INTRINSIC_BEGIN = 0,
186 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
187 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
188 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
189 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
190 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
191 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
192 INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES,
193 GFC_INTRINSIC_END /* Sentinel */
198 /* Strings for all intrinsic operators. */
199 extern mstring intrinsic_operators[];
202 /* This macro is the number of intrinsic operators that exist.
203 Assumptions are made about the numbering of the interface_op enums. */
204 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
206 /* Arithmetic results. */
208 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
209 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
216 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
217 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
218 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
219 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
220 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
221 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
222 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
223 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
224 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
225 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
226 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
227 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
228 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
229 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
230 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
231 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
232 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
233 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
234 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
235 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
236 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
237 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
238 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE,
244 /* Types of interfaces that we can have. Assignment interfaces are
245 considered to be intrinsic operators. */
248 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
249 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
253 /* Symbol flavors: these are all mutually exclusive.
254 10 elements = 4 bits. */
255 typedef enum sym_flavor
257 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
258 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST
262 /* Procedure types. 7 elements = 3 bits. */
263 typedef enum procedure_type
264 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
265 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
270 typedef enum sym_intent
271 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
276 typedef enum gfc_access
277 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
281 /* Flags to keep track of where an interface came from.
282 4 elements = 2 bits. */
284 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
288 /* Strings for all symbol attributes. We use these for dumping the
289 parse tree, in error messages, and also when reading and writing
290 modules. In symbol.c. */
291 extern const mstring flavors[];
292 extern const mstring procedures[];
293 extern const mstring intents[];
294 extern const mstring access_types[];
295 extern const mstring ifsrc_types[];
297 /* Enumeration of all the generic intrinsic functions. Used by the
298 backend for identification of a function. */
300 enum gfc_generic_isym_id
302 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
303 the backend (eg. KIND). */
337 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
347 GFC_ISYM_DOT_PRODUCT,
435 GFC_ISYM_SET_EXPONENT,
467 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
469 /************************* Structures *****************************/
471 /* Used for keeping things in balanced binary trees. */
472 #define BBT_HEADER(self) int priority; struct self *left, *right
474 /* Symbol attribute structure. */
477 /* Variable attributes. */
478 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
479 optional:1, pointer:1, save:1, target:1, volatile_:1,
480 dummy:1, result:1, assign:1, threadprivate:1;
482 unsigned data:1, /* Symbol is named in a DATA statement. */
483 use_assoc:1; /* Symbol has been use-associated. */
485 unsigned in_namelist:1, in_common:1, in_equivalence:1;
486 unsigned function:1, subroutine:1, generic:1;
487 unsigned implicit_type:1; /* Type defined via implicit rules. */
488 unsigned untyped:1; /* No implicit type could be found. */
490 /* Function/subroutine attributes */
491 unsigned sequence:1, elemental:1, pure:1, recursive:1;
492 unsigned unmaskable:1, masked:1, contained:1;
494 /* This is set if the subroutine doesn't return. Currently, this
495 is only possible for intrinsic subroutines. */
498 /* Set if this procedure is an alternate entry point. These procedures
499 don't have any code associated, and the backend will turn them into
500 thunks to the master function. */
503 /* Set if this is the master function for a procedure with multiple
505 unsigned entry_master:1;
507 /* Set if this is the master function for a function with multiple
508 entry points where characteristics of the entry points differ. */
509 unsigned mixed_entry_master:1;
511 /* Set if a function must always be referenced by an explicit interface. */
512 unsigned always_explicit:1;
514 /* Set if the symbol has been referenced in an expression. No further
515 modification of type or type parameters is permitted. */
516 unsigned referenced:1;
518 /* Set if the is the symbol for the main program. This is the least
519 cumbersome way to communicate this function property without
520 strcmp'ing with __MAIN everywhere. */
521 unsigned is_main_program:1;
523 /* Mutually exclusive multibit attributes. */
524 ENUM_BITFIELD (gfc_access) access:2;
525 ENUM_BITFIELD (sym_intent) intent:2;
526 ENUM_BITFIELD (sym_flavor) flavor:4;
527 ENUM_BITFIELD (ifsrc) if_source:2;
529 ENUM_BITFIELD (procedure_type) proc:3;
531 /* Special attributes for Cray pointers, pointees. */
532 unsigned cray_pointer:1, cray_pointee:1;
534 /* The symbol is a derived type with allocatable components, possibly nested.
536 unsigned alloc_comp:1;
541 /* The following three structures are used to identify a location in
544 gfc_file is used to maintain a tree of the source files and how
545 they include each other
547 gfc_linebuf holds a single line of source code and information
548 which file it resides in
550 locus point to the sourceline and the character in the source
554 typedef struct gfc_file
556 struct gfc_file *included_by, *next, *up;
557 int inclusion_line, line;
561 typedef struct gfc_linebuf
563 #ifdef USE_MAPPED_LOCATION
564 source_location location;
568 struct gfc_file *file;
569 struct gfc_linebuf *next;
576 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
584 /* In order for the "gfc" format checking to work correctly, you must
585 have declared a typedef locus first. */
586 #if GCC_VERSION >= 4001
587 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
589 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
593 extern int gfc_suppress_error;
596 /* Character length structures hold the expression that gives the
597 length of a character variable. We avoid putting these into
598 gfc_typespec because doing so prevents us from doing structure
599 copies and forces us to deallocate any typespecs we create, as well
600 as structures that contain typespecs. They also can have multiple
601 character typespecs pointing to them.
603 These structures form a singly linked list within the current
604 namespace and are deallocated with the namespace. It is possible to
605 end up with gfc_charlen structures that have nothing pointing to them. */
607 typedef struct gfc_charlen
609 struct gfc_expr *length;
610 struct gfc_charlen *next;
617 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
619 /* Type specification structure. FIXME: derived and cl could be union??? */
624 struct gfc_symbol *derived;
625 gfc_charlen *cl; /* For character types only. */
629 /* Array specification. */
632 int rank; /* A rank of zero means that a variable is a scalar. */
634 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
636 /* These two fields are used with the Cray Pointer extension. */
637 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
638 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
639 AS_EXPLICIT, but we want to remember that we
645 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
648 /* Components of derived types. */
649 typedef struct gfc_component
654 int pointer, allocatable, dimension;
659 struct gfc_expr *initializer;
660 struct gfc_component *next;
664 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
666 /* Formal argument lists are lists of symbols. */
667 typedef struct gfc_formal_arglist
669 /* Symbol representing the argument at this position in the arglist. */
670 struct gfc_symbol *sym;
671 /* Points to the next formal argument. */
672 struct gfc_formal_arglist *next;
676 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
679 /* The gfc_actual_arglist structure is for actual arguments. */
680 typedef struct gfc_actual_arglist
683 /* Alternate return label when the expr member is null. */
684 struct gfc_st_label *label;
686 /* This is set to the type of an eventual omitted optional
687 argument. This is used to determine if a hidden string length
688 argument has to be added to a function call. */
691 struct gfc_expr *expr;
692 struct gfc_actual_arglist *next;
696 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
699 /* Because a symbol can belong to multiple namelists, they must be
700 linked externally to the symbol itself. */
701 typedef struct gfc_namelist
703 struct gfc_symbol *sym;
704 struct gfc_namelist *next;
708 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
713 OMP_LIST_FIRSTPRIVATE,
714 OMP_LIST_LASTPRIVATE,
715 OMP_LIST_COPYPRIVATE,
719 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
731 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
735 /* Because a symbol can belong to multiple namelists, they must be
736 linked externally to the symbol itself. */
737 typedef struct gfc_omp_clauses
739 struct gfc_expr *if_expr;
740 struct gfc_expr *num_threads;
741 gfc_namelist *lists[OMP_LIST_NUM];
750 struct gfc_expr *chunk_size;
758 bool nowait, ordered;
762 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
765 /* The gfc_st_label structure is a doubly linked list attached to a
766 namespace that records the usage of statement labels within that
768 /* TODO: Make format/statement specifics a union. */
769 typedef struct gfc_st_label
771 BBT_HEADER(gfc_st_label);
775 gfc_sl_type defined, referenced;
777 struct gfc_expr *format;
786 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
787 typedef struct gfc_interface
789 struct gfc_symbol *sym;
791 struct gfc_interface *next;
795 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
798 /* User operator nodes. These are like stripped down symbols. */
803 gfc_interface *operator;
804 struct gfc_namespace *ns;
809 /* Symbol nodes. These are important things. They are what the
810 standard refers to as "entities". The possibly multiple names that
811 refer to the same entity are accomplished by a binary tree of
812 symtree structures that is balanced by the red-black method-- more
813 than one symtree node can point to any given symbol. */
815 typedef struct gfc_symbol
817 const char *name; /* Primary name, before renaming */
818 const char *module; /* Module this symbol came from */
822 symbol_attribute attr;
824 /* The interface member points to the formal argument list if the
825 symbol is a function or subroutine name. If the symbol is a
826 generic name, the generic member points to the list of
829 gfc_interface *generic;
830 gfc_access component_access;
832 gfc_formal_arglist *formal;
833 struct gfc_namespace *formal_ns;
835 struct gfc_expr *value; /* Parameter/Initializer value */
837 struct gfc_symbol *result; /* function result symbol */
838 gfc_component *components; /* Derived type components */
840 /* Defined only for Cray pointees; points to their pointer. */
841 struct gfc_symbol *cp_pointer;
843 struct gfc_symbol *common_next; /* Links for COMMON syms */
845 /* This is in fact a gfc_common_head but it is only used for pointer
846 comparisons to check if symbols are in the same common block. */
847 struct gfc_common_head* common_head;
849 /* Make sure setup code for dummy arguments is generated in the correct
855 gfc_namelist *namelist, *namelist_tail;
857 /* Change management fields. Symbols that might be modified by the
858 current statement have the mark member nonzero and are kept in a
859 singly linked list through the tlink field. Of these symbols,
860 symbols with old_symbol equal to NULL are symbols created within
861 the current statement. Otherwise, old_symbol points to a copy of
864 struct gfc_symbol *old_symbol, *tlink;
865 unsigned mark:1, new:1;
866 /* Nonzero if all equivalences associated with this symbol have been
868 unsigned equiv_built:1;
869 /* Set if this variable is used as an index name in a FORALL. */
870 unsigned forall_index:1;
872 struct gfc_namespace *ns; /* namespace containing this symbol */
879 /* This structure is used to keep track of symbols in common blocks. */
881 typedef struct gfc_common_head
884 char use_assoc, saved, threadprivate;
885 char name[GFC_MAX_SYMBOL_LEN + 1];
886 struct gfc_symbol *head;
890 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
893 /* A list of all the alternate entry points for a procedure. */
895 typedef struct gfc_entry_list
897 /* The symbol for this entry point. */
899 /* The zero-based id of this entry point. */
901 /* The LABEL_EXPR marking this entry point. */
903 /* The nest item in the list. */
904 struct gfc_entry_list *next;
908 #define gfc_get_entry_list() \
909 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
911 /* Within a namespace, symbols are pointed to by symtree nodes that
912 are linked together in a balanced binary tree. There can be
913 several symtrees pointing to the same symbol node via USE
916 typedef struct gfc_symtree
918 BBT_HEADER (gfc_symtree);
923 gfc_symbol *sym; /* Symbol associated with this node */
925 gfc_common_head *common;
932 /* A linked list of derived types in the namespace. */
933 typedef struct gfc_dt_list
935 struct gfc_symbol *derived;
936 struct gfc_dt_list *next;
940 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
943 /* A namespace describes the contents of procedure, module or
945 /* ??? Anything else use these? */
947 typedef struct gfc_namespace
949 /* Tree containing all the symbols in this namespace. */
950 gfc_symtree *sym_root;
951 /* Tree containing all the user-defined operators in the namespace. */
952 gfc_symtree *uop_root;
953 /* Tree containing all the common blocks. */
954 gfc_symtree *common_root;
956 /* If set_flag[letter] is set, an implicit type has been set for letter. */
957 int set_flag[GFC_LETTERS];
958 /* Keeps track of the implicit types associated with the letters. */
959 gfc_typespec default_type[GFC_LETTERS];
961 /* If this is a namespace of a procedure, this points to the procedure. */
962 struct gfc_symbol *proc_name;
963 /* If this is the namespace of a unit which contains executable
964 code, this points to it. */
965 struct gfc_code *code;
967 /* Points to the equivalences set up in this namespace. */
968 struct gfc_equiv *equiv;
970 /* Points to the equivalence groups produced by trans_common. */
971 struct gfc_equiv_list *equiv_lists;
973 gfc_interface *operator[GFC_INTRINSIC_OPS];
975 /* Points to the parent namespace, i.e. the namespace of a module or
976 procedure in which the procedure belonging to this namespace is
977 contained. The parent namespace points to this namespace either
978 directly via CONTAINED, or indirectly via the chain built by
980 struct gfc_namespace *parent;
981 /* CONTAINED points to the first contained namespace. Sibling
982 namespaces are chained via SIBLING. */
983 struct gfc_namespace *contained, *sibling;
985 gfc_common_head blank_common;
986 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
988 gfc_st_label *st_labels;
989 /* This list holds information about all the data initializers in
991 struct gfc_data *data;
993 gfc_charlen *cl_list;
995 int save_all, seen_save, seen_implicit_none;
997 /* Normally we don't need to refcount namespaces. However when we read
998 a module containing a function with multiple entry points, this
999 will appear as several functions with the same formal namespace. */
1002 /* A list of all alternate entry points to this procedure (or NULL). */
1003 gfc_entry_list *entries;
1005 /* A list of all derived types in this procedure (or NULL). */
1006 gfc_dt_list *derived_types;
1008 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1011 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1016 extern gfc_namespace *gfc_current_ns;
1018 /* Global symbols are symbols of global scope. Currently we only use
1019 this to detect collisions already when parsing.
1020 TODO: Extend to verify procedure calls. */
1022 typedef struct gfc_gsymbol
1024 BBT_HEADER(gfc_gsymbol);
1027 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1028 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1035 extern gfc_gsymbol *gfc_gsym_root;
1037 /* Information on interfaces being built. */
1040 interface_type type;
1044 gfc_intrinsic_op op;
1048 extern gfc_interface_info current_interface;
1051 /* Array reference. */
1052 typedef struct gfc_array_ref
1055 int dimen; /* # of components in the reference */
1059 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1060 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1061 *stride[GFC_MAX_DIMENSIONS];
1064 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1065 dimen_type[GFC_MAX_DIMENSIONS];
1067 struct gfc_expr *offset;
1071 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1074 /* Component reference nodes. A variable is stored as an expression
1075 node that points to the base symbol. After that, a singly linked
1076 list of component reference nodes gives the variable's complete
1077 resolution. The array_ref component may be present and comes
1078 before the component component. */
1081 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1084 typedef struct gfc_ref
1090 struct gfc_array_ref ar;
1094 gfc_component *component;
1101 struct gfc_expr *start, *end; /* Substring */
1102 gfc_charlen *length;
1109 struct gfc_ref *next;
1113 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1116 /* Structures representing intrinsic symbols and their arguments lists. */
1117 typedef struct gfc_intrinsic_arg
1119 char name[GFC_MAX_SYMBOL_LEN + 1];
1123 gfc_actual_arglist *actual;
1125 struct gfc_intrinsic_arg *next;
1131 /* Specifies the various kinds of check functions used to verify the
1132 argument lists of intrinsic functions. fX with X an integer refer
1133 to check functions of intrinsics with X arguments. f1m is used for
1134 the MAX and MIN intrinsics which can have an arbitrary number of
1135 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1136 these have special semantics. */
1141 try (*f1)(struct gfc_expr *);
1142 try (*f1m)(gfc_actual_arglist *);
1143 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1144 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1145 try (*f3ml)(gfc_actual_arglist *);
1146 try (*f3red)(gfc_actual_arglist *);
1147 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1149 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1150 struct gfc_expr *, struct gfc_expr *);
1154 /* Like gfc_check_f, these specify the type of the simplification
1155 function associated with an intrinsic. The fX are just like in
1156 gfc_check_f. cc is used for type conversion functions. */
1160 struct gfc_expr *(*f0)(void);
1161 struct gfc_expr *(*f1)(struct gfc_expr *);
1162 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1163 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1165 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1166 struct gfc_expr *, struct gfc_expr *);
1167 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1168 struct gfc_expr *, struct gfc_expr *,
1170 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1174 /* Again like gfc_check_f, these specify the type of the resolution
1175 function associated with an intrinsic. The fX are just like in
1176 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1181 void (*f0)(struct gfc_expr *);
1182 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1183 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1184 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1185 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1187 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1188 struct gfc_expr *, struct gfc_expr *);
1189 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1190 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1191 void (*s1)(struct gfc_code *);
1196 typedef struct gfc_intrinsic_sym
1198 const char *name, *lib_name;
1199 gfc_intrinsic_arg *formal;
1201 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1203 gfc_simplify_f simplify;
1205 gfc_resolve_f resolve;
1206 struct gfc_intrinsic_sym *specific_head, *next;
1207 gfc_generic_isym_id generic_id;
1213 /* Expression nodes. The expression node types deserve explanations,
1214 since the last couple can be easily misconstrued:
1216 EXPR_OP Operator node pointing to one or two other nodes
1217 EXPR_FUNCTION Function call, symbol points to function's name
1218 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1219 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1220 which expresses structure, array and substring refs.
1221 EXPR_NULL The NULL pointer value (which also has a basic type).
1222 EXPR_SUBSTRING A substring of a constant string
1223 EXPR_STRUCTURE A structure constructor
1224 EXPR_ARRAY An array constructor. */
1228 #define GFC_RND_MODE GMP_RNDN
1230 typedef struct gfc_expr
1234 gfc_typespec ts; /* These two refer to the overall expression */
1237 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1239 /* Nonnull for functions and structure constructors */
1240 gfc_symtree *symtree;
1246 /* True if it is converted from Hollerith constant. */
1247 unsigned int from_H : 1;
1248 /* True if the expression is a call to a function that returns an array,
1249 and if we have decided not to allocate temporary data for that array. */
1250 unsigned int inline_noncopying_intrinsic : 1;
1251 /* Used to quickly find a given constructor by it's offset. */
1252 splay_tree con_by_offset;
1269 gfc_intrinsic_op operator;
1271 struct gfc_expr *op1, *op2;
1277 gfc_actual_arglist *actual;
1278 const char *name; /* Points to the ultimate name of the function */
1279 gfc_intrinsic_sym *isym;
1291 struct gfc_constructor *constructor;
1299 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1301 /* Structures for information associated with different kinds of
1302 numbers. The first set of integer parameters define all there is
1303 to know about a particular kind. The rest of the elements are
1304 computed from the first elements. */
1308 /* Values really representable by the target. */
1309 mpz_t huge, pedantic_min_int, min_int;
1311 int kind, radix, digits, bit_size, range;
1313 /* True if the C type of the given name maps to this precision.
1314 Note that more than one bit can be set. */
1315 unsigned int c_char : 1;
1316 unsigned int c_short : 1;
1317 unsigned int c_int : 1;
1318 unsigned int c_long : 1;
1319 unsigned int c_long_long : 1;
1323 extern gfc_integer_info gfc_integer_kinds[];
1330 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1331 unsigned int c_bool : 1;
1335 extern gfc_logical_info gfc_logical_kinds[];
1340 mpfr_t epsilon, huge, tiny, subnormal;
1341 int kind, radix, digits, min_exponent, max_exponent;
1342 int range, precision;
1344 /* The precision of the type as reported by GET_MODE_PRECISION. */
1347 /* True if the C type of the given name maps to this precision.
1348 Note that more than one bit can be set. */
1349 unsigned int c_float : 1;
1350 unsigned int c_double : 1;
1351 unsigned int c_long_double : 1;
1355 extern gfc_real_info gfc_real_kinds[];
1358 /* Equivalence structures. Equivalent lvalues are linked along the
1359 *eq pointer, equivalence sets are strung along the *next node. */
1360 typedef struct gfc_equiv
1362 struct gfc_equiv *next, *eq;
1369 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1371 /* Holds a single equivalence member after processing. */
1372 typedef struct gfc_equiv_info
1375 HOST_WIDE_INT offset;
1376 HOST_WIDE_INT length;
1377 struct gfc_equiv_info *next;
1380 /* Holds equivalence groups, after they have been processed. */
1381 typedef struct gfc_equiv_list
1383 gfc_equiv_info *equiv;
1384 struct gfc_equiv_list *next;
1387 /* gfc_case stores the selector list of a case statement. The *low
1388 and *high pointers can point to the same expression in the case of
1389 a single value. If *high is NULL, the selection is from *low
1390 upwards, if *low is NULL the selection is *high downwards.
1392 This structure has separate fields to allow single and double linked
1393 lists of CASEs at the same time. The singe linked list along the NEXT
1394 field is a list of cases for a single CASE label. The double linked
1395 list along the LEFT/RIGHT fields is used to detect overlap and to
1396 build a table of the cases for SELECT constructs with a CHARACTER
1399 typedef struct gfc_case
1401 /* Where we saw this case. */
1405 /* Case range values. If (low == high), it's a single value. If one of
1406 the labels is NULL, it's an unbounded case. If both are NULL, this
1407 represents the default case. */
1408 gfc_expr *low, *high;
1410 /* Next case label in the list of cases for a single CASE label. */
1411 struct gfc_case *next;
1413 /* Used for detecting overlap, and for code generation. */
1414 struct gfc_case *left, *right;
1416 /* True if this case label can never be matched. */
1421 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1426 gfc_expr *var, *start, *end, *step;
1430 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1433 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1435 typedef struct gfc_alloc
1438 struct gfc_alloc *next;
1442 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1447 gfc_expr *unit, *file, *status, *access, *form, *recl,
1448 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1456 gfc_expr *unit, *status, *iostat, *iomsg;
1464 gfc_expr *unit, *iostat, *iomsg;
1472 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1473 *name, *access, *sequential, *direct, *form, *formatted,
1474 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1475 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1485 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1487 gfc_symbol *namelist;
1488 /* A format_label of `format_asterisk' indicates the "*" format */
1489 gfc_st_label *format_label;
1490 gfc_st_label *err, *end, *eor;
1492 locus eor_where, end_where, err_where;
1497 typedef struct gfc_forall_iterator
1499 gfc_expr *var, *start, *end, *stride;
1500 struct gfc_forall_iterator *next;
1502 gfc_forall_iterator;
1505 /* Executable statements that fill gfc_code structures. */
1508 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1509 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1510 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1511 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1512 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1513 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1514 EXEC_OPEN, EXEC_CLOSE,
1515 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1516 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1517 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1518 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1519 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1520 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1521 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1526 typedef struct gfc_code
1530 struct gfc_code *block, *next;
1533 gfc_st_label *here, *label, *label2, *label3;
1534 gfc_symtree *symtree;
1535 gfc_expr *expr, *expr2;
1536 /* A name isn't sufficient to identify a subroutine, we need the actual
1537 symbol for the interface definition.
1538 const char *sub_name; */
1539 gfc_symbol *resolved_sym;
1543 gfc_actual_arglist *actual;
1544 gfc_case *case_list;
1545 gfc_iterator *iterator;
1546 gfc_alloc *alloc_list;
1549 gfc_filepos *filepos;
1550 gfc_inquire *inquire;
1552 gfc_forall_iterator *forall_iterator;
1553 struct gfc_code *whichloop;
1555 gfc_entry_list *entry;
1556 gfc_omp_clauses *omp_clauses;
1557 const char *omp_name;
1558 gfc_namelist *omp_namelist;
1561 ext; /* Points to additional structures required by statement */
1563 /* Backend_decl is used for cycle and break labels in do loops, and
1564 probably for other constructs as well, once we translate them. */
1570 /* Storage for DATA statements. */
1571 typedef struct gfc_data_variable
1575 struct gfc_data_variable *list, *next;
1580 typedef struct gfc_data_value
1582 unsigned int repeat;
1584 struct gfc_data_value *next;
1589 typedef struct gfc_data
1591 gfc_data_variable *var;
1592 gfc_data_value *value;
1595 struct gfc_data *next;
1599 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1600 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1601 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1604 /* Structure for holding compile options */
1608 gfc_source_form source_form;
1609 /* Maximum line lengths in fixed- and free-form source, respectively.
1610 When fixed_line_length or free_line_length are 0, the whole line is used,
1611 regardless of length.
1613 If the user requests a fixed_line_length <7 then gfc_init_options()
1614 emits a fatal error. */
1615 int fixed_line_length;
1616 int free_line_length;
1617 /* Maximum number of continuation lines in fixed- and free-form source,
1619 int max_continue_fixed;
1620 int max_continue_free;
1621 int max_identifier_length;
1626 int warn_conversion;
1627 int warn_implicit_interface;
1628 int warn_line_truncation;
1629 int warn_surprising;
1634 int flag_all_intrinsics;
1635 int flag_default_double;
1636 int flag_default_integer;
1637 int flag_default_real;
1639 int flag_underscoring;
1640 int flag_second_underscore;
1641 int flag_implicit_none;
1642 int flag_max_stack_var_size;
1643 int flag_range_check;
1644 int flag_pack_derived;
1645 int flag_repack_arrays;
1646 int flag_preprocessed;
1650 int flag_external_blas;
1651 int blas_matmul_limit;
1652 int flag_cray_pointer;
1660 int warn_nonstd_intrinsics;
1667 extern gfc_option_t gfc_option;
1670 /* Constructor nodes for array and structure constructors. */
1671 typedef struct gfc_constructor
1674 gfc_iterator *iterator;
1676 struct gfc_constructor *next;
1679 mpz_t offset; /* Record the offset of array element which appears in
1680 data statement like "data a(5)/4/". */
1681 gfc_component *component; /* Record the component being initialized. */
1684 mpz_t repeat; /* Record the repeat number of initial values in data
1685 statement like "data a/5*10/". */
1690 typedef struct iterator_stack
1692 gfc_symtree *variable;
1694 struct iterator_stack *prev;
1697 extern iterator_stack *iter_stack;
1699 /************************ Function prototypes *************************/
1702 void gfc_formalize_init_value (gfc_symbol *);
1703 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1704 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1705 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1706 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1709 void gfc_scanner_done_1 (void);
1710 void gfc_scanner_init_1 (void);
1712 void gfc_add_include_path (const char *, bool);
1713 void gfc_add_intrinsic_modules_path (const char *);
1714 void gfc_release_include_path (void);
1715 FILE *gfc_open_included_file (const char *, bool, bool);
1716 FILE *gfc_open_intrinsic_module (const char *);
1718 int gfc_at_end (void);
1719 int gfc_at_eof (void);
1720 int gfc_at_bol (void);
1721 int gfc_at_eol (void);
1722 void gfc_advance_line (void);
1723 int gfc_check_include (void);
1725 void gfc_skip_comments (void);
1726 int gfc_next_char_literal (int);
1727 int gfc_next_char (void);
1728 int gfc_peek_char (void);
1729 void gfc_error_recovery (void);
1730 void gfc_gobble_whitespace (void);
1731 try gfc_new_file (void);
1732 const char * gfc_read_orig_filename (const char *, const char **);
1734 extern gfc_source_form gfc_current_form;
1735 extern const char *gfc_source_file;
1736 extern locus gfc_current_locus;
1739 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1740 void gfc_free (void *);
1741 int gfc_terminal_width(void);
1742 void gfc_clear_ts (gfc_typespec *);
1743 FILE *gfc_open_file (const char *);
1744 const char *gfc_basic_typename (bt);
1745 const char *gfc_typename (gfc_typespec *);
1747 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1748 "=" : gfc_code2string (intrinsic_operators, OP))
1750 const char *gfc_code2string (const mstring *, int);
1751 int gfc_string2code (const mstring *, const char *);
1752 const char *gfc_intent_string (sym_intent);
1754 void gfc_init_1 (void);
1755 void gfc_init_2 (void);
1756 void gfc_done_1 (void);
1757 void gfc_done_2 (void);
1760 unsigned int gfc_init_options (unsigned int, const char **);
1761 int gfc_handle_option (size_t, const char *, int);
1762 bool gfc_post_options (const char **);
1765 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1769 typedef struct gfc_error_buf
1772 size_t allocated, index;
1776 void gfc_error_init_1 (void);
1777 void gfc_buffer_error (int);
1779 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1780 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1781 void gfc_clear_warning (void);
1782 void gfc_warning_check (void);
1784 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1785 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1786 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1787 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1788 void gfc_clear_error (void);
1789 int gfc_error_check (void);
1790 int gfc_error_flag_test (void);
1792 notification gfc_notification_std (int);
1793 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1795 /* A general purpose syntax error. */
1796 #define gfc_syntax_error(ST) \
1797 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1799 void gfc_push_error (gfc_error_buf *);
1800 void gfc_pop_error (gfc_error_buf *);
1801 void gfc_free_error (gfc_error_buf *);
1803 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1804 void gfc_status_char (char);
1806 void gfc_get_errors (int *, int *);
1809 void gfc_arith_init_1 (void);
1810 void gfc_arith_done_1 (void);
1811 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1812 arith gfc_check_integer_range (mpz_t p, int kind);
1815 int gfc_validate_kind (bt, int, bool);
1816 extern int gfc_index_integer_kind;
1817 extern int gfc_default_integer_kind;
1818 extern int gfc_max_integer_kind;
1819 extern int gfc_default_real_kind;
1820 extern int gfc_default_double_kind;
1821 extern int gfc_default_character_kind;
1822 extern int gfc_default_logical_kind;
1823 extern int gfc_default_complex_kind;
1824 extern int gfc_c_int_kind;
1825 extern int gfc_intio_kind;
1826 extern int gfc_numeric_storage_size;
1827 extern int gfc_character_storage_size;
1830 void gfc_clear_new_implicit (void);
1831 try gfc_add_new_implicit_range (int, int);
1832 try gfc_merge_new_implicit (gfc_typespec *);
1833 void gfc_set_implicit_none (void);
1835 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1836 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1838 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1839 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1841 void gfc_set_sym_referenced (gfc_symbol * sym);
1843 try gfc_add_attribute (symbol_attribute *, locus *);
1844 try gfc_add_allocatable (symbol_attribute *, locus *);
1845 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1846 try gfc_add_external (symbol_attribute *, locus *);
1847 try gfc_add_intrinsic (symbol_attribute *, locus *);
1848 try gfc_add_optional (symbol_attribute *, locus *);
1849 try gfc_add_pointer (symbol_attribute *, locus *);
1850 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1851 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1852 try gfc_mod_pointee_as (gfc_array_spec *as);
1853 try gfc_add_result (symbol_attribute *, const char *, locus *);
1854 try gfc_add_save (symbol_attribute *, const char *, locus *);
1855 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
1856 try gfc_add_saved_common (symbol_attribute *, locus *);
1857 try gfc_add_target (symbol_attribute *, locus *);
1858 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1859 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1860 try gfc_add_common (symbol_attribute *, locus *);
1861 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1862 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1863 try gfc_add_data (symbol_attribute *, const char *, locus *);
1864 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1865 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1866 try gfc_add_elemental (symbol_attribute *, locus *);
1867 try gfc_add_pure (symbol_attribute *, locus *);
1868 try gfc_add_recursive (symbol_attribute *, locus *);
1869 try gfc_add_function (symbol_attribute *, const char *, locus *);
1870 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1871 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
1873 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1874 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1875 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1876 try gfc_add_procedure (symbol_attribute *, procedure_type,
1877 const char *, locus *);
1878 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1879 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1880 gfc_formal_arglist *, locus *);
1881 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1883 void gfc_clear_attr (symbol_attribute *);
1884 try gfc_missing_attr (symbol_attribute *, locus *);
1885 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1887 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1888 gfc_symbol *gfc_use_derived (gfc_symbol *);
1889 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1890 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1892 gfc_st_label *gfc_get_st_label (int);
1893 void gfc_free_st_label (gfc_st_label *);
1894 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1895 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1897 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1898 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1899 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1900 gfc_user_op *gfc_get_uop (const char *);
1901 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1902 void gfc_free_symbol (gfc_symbol *);
1903 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1904 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1905 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1906 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1907 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1908 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1909 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1911 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1913 void gfc_undo_symbols (void);
1914 void gfc_commit_symbols (void);
1915 void gfc_commit_symbol (gfc_symbol * sym);
1916 void gfc_free_namespace (gfc_namespace *);
1918 void gfc_symbol_init_2 (void);
1919 void gfc_symbol_done_2 (void);
1921 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1922 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1923 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1924 void gfc_save_all (gfc_namespace *);
1926 void gfc_symbol_state (void);
1928 gfc_gsymbol *gfc_get_gsymbol (const char *);
1929 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1932 extern int gfc_init_expr;
1934 /* Given a symbol that we have decided is intrinsic, mark it as such
1935 by placing it into a special module that is otherwise impossible to
1938 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1940 void gfc_intrinsic_init_1 (void);
1941 void gfc_intrinsic_done_1 (void);
1943 char gfc_type_letter (bt);
1944 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1945 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1946 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1947 int gfc_generic_intrinsic (const char *);
1948 int gfc_specific_intrinsic (const char *);
1949 int gfc_intrinsic_name (const char *, int);
1950 int gfc_intrinsic_actual_ok (const char *, const bool);
1951 gfc_intrinsic_sym *gfc_find_function (const char *);
1953 match gfc_intrinsic_func_interface (gfc_expr *, int);
1954 match gfc_intrinsic_sub_interface (gfc_code *, int);
1957 void gfc_simplify_init_1 (void);
1959 /* match.c -- FIXME */
1960 void gfc_free_iterator (gfc_iterator *, int);
1961 void gfc_free_forall_iterator (gfc_forall_iterator *);
1962 void gfc_free_alloc_list (gfc_alloc *);
1963 void gfc_free_namelist (gfc_namelist *);
1964 void gfc_free_equiv (gfc_equiv *);
1965 void gfc_free_data (gfc_data *);
1966 void gfc_free_case_list (gfc_case *);
1968 /* matchexp.c -- FIXME too? */
1969 gfc_expr *gfc_get_parentheses (gfc_expr *);
1972 void gfc_free_omp_clauses (gfc_omp_clauses *);
1973 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
1974 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
1975 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
1976 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
1979 void gfc_free_actual_arglist (gfc_actual_arglist *);
1980 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1981 const char *gfc_extract_int (gfc_expr *, int *);
1982 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
1984 gfc_expr *gfc_build_conversion (gfc_expr *);
1985 void gfc_free_ref_list (gfc_ref *);
1986 void gfc_type_convert_binary (gfc_expr *);
1987 int gfc_is_constant_expr (gfc_expr *);
1988 try gfc_simplify_expr (gfc_expr *, int);
1989 int gfc_has_vector_index (gfc_expr *);
1991 gfc_expr *gfc_get_expr (void);
1992 void gfc_free_expr (gfc_expr *);
1993 void gfc_replace_expr (gfc_expr *, gfc_expr *);
1994 gfc_expr *gfc_int_expr (int);
1995 gfc_expr *gfc_logical_expr (int, locus *);
1996 mpz_t *gfc_copy_shape (mpz_t *, int);
1997 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
1998 gfc_expr *gfc_copy_expr (gfc_expr *);
2000 try gfc_specification_expr (gfc_expr *);
2002 int gfc_numeric_ts (gfc_typespec *);
2003 int gfc_kind_max (gfc_expr *, gfc_expr *);
2005 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2006 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2007 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2008 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2010 gfc_expr *gfc_default_initializer (gfc_typespec *);
2011 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2013 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
2016 extern gfc_code new_st;
2018 void gfc_clear_new_st (void);
2019 gfc_code *gfc_get_code (void);
2020 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2021 void gfc_free_statement (gfc_code *);
2022 void gfc_free_statements (gfc_code *);
2025 try gfc_resolve_expr (gfc_expr *);
2026 void gfc_resolve (gfc_namespace *);
2027 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2028 int gfc_impure_variable (gfc_symbol *);
2029 int gfc_pure (gfc_symbol *);
2030 int gfc_elemental (gfc_symbol *);
2031 try gfc_resolve_iterator (gfc_iterator *, bool);
2032 try gfc_resolve_index (gfc_expr *, int);
2033 try gfc_resolve_dim_arg (gfc_expr *);
2034 int gfc_is_formal_arg (void);
2037 void gfc_free_array_spec (gfc_array_spec *);
2038 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2040 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2041 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2042 try gfc_resolve_array_spec (gfc_array_spec *, int);
2044 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2046 gfc_expr *gfc_start_constructor (bt, int, locus *);
2047 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2048 void gfc_free_constructor (gfc_constructor *);
2049 void gfc_simplify_iterator_var (gfc_expr *);
2050 try gfc_expand_constructor (gfc_expr *);
2051 int gfc_constant_ac (gfc_expr *);
2052 int gfc_expanded_ac (gfc_expr *);
2053 void gfc_resolve_character_array_constructor (gfc_expr *);
2054 try gfc_resolve_array_constructor (gfc_expr *);
2055 try gfc_check_constructor_type (gfc_expr *);
2056 try gfc_check_iter_variable (gfc_expr *);
2057 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2058 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
2059 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2060 try gfc_array_size (gfc_expr *, mpz_t *);
2061 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2062 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2063 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2064 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2065 gfc_constructor *gfc_get_constructor (void);
2066 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
2067 try spec_size (gfc_array_spec *, mpz_t *);
2068 int gfc_is_compile_time_shape (gfc_array_spec *);
2070 /* interface.c -- FIXME: some of these should be in symbol.c */
2071 void gfc_free_interface (gfc_interface *);
2072 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2073 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2074 void gfc_check_interfaces (gfc_namespace *);
2075 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2076 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2077 gfc_actual_arglist **);
2078 try gfc_extend_expr (gfc_expr *);
2079 void gfc_free_formal_arglist (gfc_formal_arglist *);
2080 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2081 try gfc_add_interface (gfc_symbol * sym);
2084 extern gfc_st_label format_asterisk;
2086 void gfc_free_open (gfc_open *);
2087 try gfc_resolve_open (gfc_open *);
2088 void gfc_free_close (gfc_close *);
2089 try gfc_resolve_close (gfc_close *);
2090 void gfc_free_filepos (gfc_filepos *);
2091 try gfc_resolve_filepos (gfc_filepos *);
2092 void gfc_free_inquire (gfc_inquire *);
2093 try gfc_resolve_inquire (gfc_inquire *);
2094 void gfc_free_dt (gfc_dt *);
2095 try gfc_resolve_dt (gfc_dt *);
2098 void gfc_module_init_2 (void);
2099 void gfc_module_done_2 (void);
2100 void gfc_dump_module (const char *, int);
2101 bool gfc_check_access (gfc_access, gfc_access);
2104 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2105 symbol_attribute gfc_expr_attr (gfc_expr *);
2108 void gfc_generate_code (gfc_namespace *);
2109 void gfc_generate_module_code (gfc_namespace *);
2112 typedef int (*compare_fn) (void *, void *);
2113 void gfc_insert_bbt (void *, void *, compare_fn);
2114 void gfc_delete_bbt (void *, void *, compare_fn);
2116 /* dump-parse-tree.c */
2117 void gfc_show_actual_arglist (gfc_actual_arglist *);
2118 void gfc_show_array_ref (gfc_array_ref *);
2119 void gfc_show_array_spec (gfc_array_spec *);
2120 void gfc_show_attr (symbol_attribute *);
2121 void gfc_show_code (int, gfc_code *);
2122 void gfc_show_components (gfc_symbol *);
2123 void gfc_show_constructor (gfc_constructor *);
2124 void gfc_show_equiv (gfc_equiv *);
2125 void gfc_show_expr (gfc_expr *);
2126 void gfc_show_namelist (gfc_namelist *);
2127 void gfc_show_namespace (gfc_namespace *);
2128 void gfc_show_ref (gfc_ref *);
2129 void gfc_show_symbol (gfc_symbol *);
2130 void gfc_show_typespec (gfc_typespec *);
2133 try gfc_parse_file (void);
2134 void global_used (gfc_gsymbol *, locus *);
2137 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2139 #endif /* GCC_GFORTRAN_H */