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;
485 unsigned data:1, /* Symbol is named in a DATA statement. */
486 use_assoc:1; /* Symbol has been use-associated. */
488 unsigned in_namelist:1, in_common:1, in_equivalence:1;
489 unsigned function:1, subroutine:1, generic:1, generic_copy:1;
490 unsigned implicit_type:1; /* Type defined via implicit rules. */
491 unsigned untyped:1; /* No implicit type could be found. */
493 /* Function/subroutine attributes */
494 unsigned sequence:1, elemental:1, pure:1, recursive:1;
495 unsigned unmaskable:1, masked:1, contained:1;
497 /* This is set if the subroutine doesn't return. Currently, this
498 is only possible for intrinsic subroutines. */
501 /* Set if this procedure is an alternate entry point. These procedures
502 don't have any code associated, and the backend will turn them into
503 thunks to the master function. */
506 /* Set if this is the master function for a procedure with multiple
508 unsigned entry_master:1;
510 /* Set if this is the master function for a function with multiple
511 entry points where characteristics of the entry points differ. */
512 unsigned mixed_entry_master:1;
514 /* Set if a function must always be referenced by an explicit interface. */
515 unsigned always_explicit:1;
517 /* Set if the symbol has been referenced in an expression. No further
518 modification of type or type parameters is permitted. */
519 unsigned referenced:1;
521 /* Set if the is the symbol for the main program. This is the least
522 cumbersome way to communicate this function property without
523 strcmp'ing with __MAIN everywhere. */
524 unsigned is_main_program:1;
526 /* Mutually exclusive multibit attributes. */
527 ENUM_BITFIELD (gfc_access) access:2;
528 ENUM_BITFIELD (sym_intent) intent:2;
529 ENUM_BITFIELD (sym_flavor) flavor:4;
530 ENUM_BITFIELD (ifsrc) if_source:2;
532 ENUM_BITFIELD (procedure_type) proc:3;
534 /* Special attributes for Cray pointers, pointees. */
535 unsigned cray_pointer:1, cray_pointee:1;
537 /* The symbol is a derived type with allocatable components, possibly nested.
539 unsigned alloc_comp:1;
544 /* The following three structures are used to identify a location in
547 gfc_file is used to maintain a tree of the source files and how
548 they include each other
550 gfc_linebuf holds a single line of source code and information
551 which file it resides in
553 locus point to the sourceline and the character in the source
557 typedef struct gfc_file
559 struct gfc_file *included_by, *next, *up;
560 int inclusion_line, line;
564 typedef struct gfc_linebuf
566 #ifdef USE_MAPPED_LOCATION
567 source_location location;
571 struct gfc_file *file;
572 struct gfc_linebuf *next;
579 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
587 /* In order for the "gfc" format checking to work correctly, you must
588 have declared a typedef locus first. */
589 #if GCC_VERSION >= 4001
590 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
592 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
596 extern int gfc_suppress_error;
599 /* Character length structures hold the expression that gives the
600 length of a character variable. We avoid putting these into
601 gfc_typespec because doing so prevents us from doing structure
602 copies and forces us to deallocate any typespecs we create, as well
603 as structures that contain typespecs. They also can have multiple
604 character typespecs pointing to them.
606 These structures form a singly linked list within the current
607 namespace and are deallocated with the namespace. It is possible to
608 end up with gfc_charlen structures that have nothing pointing to them. */
610 typedef struct gfc_charlen
612 struct gfc_expr *length;
613 struct gfc_charlen *next;
620 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
622 /* Type specification structure. FIXME: derived and cl could be union??? */
627 struct gfc_symbol *derived;
628 gfc_charlen *cl; /* For character types only. */
632 /* Array specification. */
635 int rank; /* A rank of zero means that a variable is a scalar. */
637 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
639 /* These two fields are used with the Cray Pointer extension. */
640 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
641 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
642 AS_EXPLICIT, but we want to remember that we
648 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
651 /* Components of derived types. */
652 typedef struct gfc_component
657 int pointer, allocatable, dimension;
662 struct gfc_expr *initializer;
663 struct gfc_component *next;
667 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
669 /* Formal argument lists are lists of symbols. */
670 typedef struct gfc_formal_arglist
672 /* Symbol representing the argument at this position in the arglist. */
673 struct gfc_symbol *sym;
674 /* Points to the next formal argument. */
675 struct gfc_formal_arglist *next;
679 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
682 /* The gfc_actual_arglist structure is for actual arguments. */
683 typedef struct gfc_actual_arglist
686 /* Alternate return label when the expr member is null. */
687 struct gfc_st_label *label;
689 /* This is set to the type of an eventual omitted optional
690 argument. This is used to determine if a hidden string length
691 argument has to be added to a function call. */
694 struct gfc_expr *expr;
695 struct gfc_actual_arglist *next;
699 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
702 /* Because a symbol can belong to multiple namelists, they must be
703 linked externally to the symbol itself. */
704 typedef struct gfc_namelist
706 struct gfc_symbol *sym;
707 struct gfc_namelist *next;
711 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
716 OMP_LIST_FIRSTPRIVATE,
717 OMP_LIST_LASTPRIVATE,
718 OMP_LIST_COPYPRIVATE,
722 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
734 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
738 /* Because a symbol can belong to multiple namelists, they must be
739 linked externally to the symbol itself. */
740 typedef struct gfc_omp_clauses
742 struct gfc_expr *if_expr;
743 struct gfc_expr *num_threads;
744 gfc_namelist *lists[OMP_LIST_NUM];
753 struct gfc_expr *chunk_size;
761 bool nowait, ordered;
765 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
768 /* The gfc_st_label structure is a doubly linked list attached to a
769 namespace that records the usage of statement labels within that
771 /* TODO: Make format/statement specifics a union. */
772 typedef struct gfc_st_label
774 BBT_HEADER(gfc_st_label);
778 gfc_sl_type defined, referenced;
780 struct gfc_expr *format;
789 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
790 typedef struct gfc_interface
792 struct gfc_symbol *sym;
794 struct gfc_interface *next;
798 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
801 /* User operator nodes. These are like stripped down symbols. */
806 gfc_interface *operator;
807 struct gfc_namespace *ns;
812 /* Symbol nodes. These are important things. They are what the
813 standard refers to as "entities". The possibly multiple names that
814 refer to the same entity are accomplished by a binary tree of
815 symtree structures that is balanced by the red-black method-- more
816 than one symtree node can point to any given symbol. */
818 typedef struct gfc_symbol
820 const char *name; /* Primary name, before renaming */
821 const char *module; /* Module this symbol came from */
825 symbol_attribute attr;
827 /* The interface member points to the formal argument list if the
828 symbol is a function or subroutine name. If the symbol is a
829 generic name, the generic member points to the list of
832 gfc_interface *generic;
833 gfc_access component_access;
835 gfc_formal_arglist *formal;
836 struct gfc_namespace *formal_ns;
838 struct gfc_expr *value; /* Parameter/Initializer value */
840 struct gfc_symbol *result; /* function result symbol */
841 gfc_component *components; /* Derived type components */
843 /* Defined only for Cray pointees; points to their pointer. */
844 struct gfc_symbol *cp_pointer;
846 struct gfc_symbol *common_next; /* Links for COMMON syms */
848 /* This is in fact a gfc_common_head but it is only used for pointer
849 comparisons to check if symbols are in the same common block. */
850 struct gfc_common_head* common_head;
852 /* Make sure setup code for dummy arguments is generated in the correct
858 gfc_namelist *namelist, *namelist_tail;
860 /* Change management fields. Symbols that might be modified by the
861 current statement have the mark member nonzero and are kept in a
862 singly linked list through the tlink field. Of these symbols,
863 symbols with old_symbol equal to NULL are symbols created within
864 the current statement. Otherwise, old_symbol points to a copy of
867 struct gfc_symbol *old_symbol, *tlink;
868 unsigned mark:1, new:1;
869 /* Nonzero if all equivalences associated with this symbol have been
871 unsigned equiv_built:1;
872 /* Set if this variable is used as an index name in a FORALL. */
873 unsigned forall_index:1;
875 struct gfc_namespace *ns; /* namespace containing this symbol */
882 /* This structure is used to keep track of symbols in common blocks. */
884 typedef struct gfc_common_head
887 char use_assoc, saved, threadprivate;
888 char name[GFC_MAX_SYMBOL_LEN + 1];
889 struct gfc_symbol *head;
893 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
896 /* A list of all the alternate entry points for a procedure. */
898 typedef struct gfc_entry_list
900 /* The symbol for this entry point. */
902 /* The zero-based id of this entry point. */
904 /* The LABEL_EXPR marking this entry point. */
906 /* The nest item in the list. */
907 struct gfc_entry_list *next;
911 #define gfc_get_entry_list() \
912 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
914 /* Within a namespace, symbols are pointed to by symtree nodes that
915 are linked together in a balanced binary tree. There can be
916 several symtrees pointing to the same symbol node via USE
919 typedef struct gfc_symtree
921 BBT_HEADER (gfc_symtree);
926 gfc_symbol *sym; /* Symbol associated with this node */
928 gfc_common_head *common;
935 /* A linked list of derived types in the namespace. */
936 typedef struct gfc_dt_list
938 struct gfc_symbol *derived;
939 struct gfc_dt_list *next;
943 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
946 /* A namespace describes the contents of procedure, module or
948 /* ??? Anything else use these? */
950 typedef struct gfc_namespace
952 /* Tree containing all the symbols in this namespace. */
953 gfc_symtree *sym_root;
954 /* Tree containing all the user-defined operators in the namespace. */
955 gfc_symtree *uop_root;
956 /* Tree containing all the common blocks. */
957 gfc_symtree *common_root;
959 /* If set_flag[letter] is set, an implicit type has been set for letter. */
960 int set_flag[GFC_LETTERS];
961 /* Keeps track of the implicit types associated with the letters. */
962 gfc_typespec default_type[GFC_LETTERS];
964 /* If this is a namespace of a procedure, this points to the procedure. */
965 struct gfc_symbol *proc_name;
966 /* If this is the namespace of a unit which contains executable
967 code, this points to it. */
968 struct gfc_code *code;
970 /* Points to the equivalences set up in this namespace. */
971 struct gfc_equiv *equiv;
973 /* Points to the equivalence groups produced by trans_common. */
974 struct gfc_equiv_list *equiv_lists;
976 gfc_interface *operator[GFC_INTRINSIC_OPS];
978 /* Points to the parent namespace, i.e. the namespace of a module or
979 procedure in which the procedure belonging to this namespace is
980 contained. The parent namespace points to this namespace either
981 directly via CONTAINED, or indirectly via the chain built by
983 struct gfc_namespace *parent;
984 /* CONTAINED points to the first contained namespace. Sibling
985 namespaces are chained via SIBLING. */
986 struct gfc_namespace *contained, *sibling;
988 gfc_common_head blank_common;
989 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
991 gfc_st_label *st_labels;
992 /* This list holds information about all the data initializers in
994 struct gfc_data *data;
996 gfc_charlen *cl_list;
998 int save_all, seen_save, seen_implicit_none;
1000 /* Normally we don't need to refcount namespaces. However when we read
1001 a module containing a function with multiple entry points, this
1002 will appear as several functions with the same formal namespace. */
1005 /* A list of all alternate entry points to this procedure (or NULL). */
1006 gfc_entry_list *entries;
1008 /* A list of all derived types in this procedure (or NULL). */
1009 gfc_dt_list *derived_types;
1011 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1014 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1019 extern gfc_namespace *gfc_current_ns;
1021 /* Global symbols are symbols of global scope. Currently we only use
1022 this to detect collisions already when parsing.
1023 TODO: Extend to verify procedure calls. */
1025 typedef struct gfc_gsymbol
1027 BBT_HEADER(gfc_gsymbol);
1030 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1031 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1038 extern gfc_gsymbol *gfc_gsym_root;
1040 /* Information on interfaces being built. */
1043 interface_type type;
1047 gfc_intrinsic_op op;
1051 extern gfc_interface_info current_interface;
1054 /* Array reference. */
1055 typedef struct gfc_array_ref
1058 int dimen; /* # of components in the reference */
1062 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1063 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1064 *stride[GFC_MAX_DIMENSIONS];
1067 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1068 dimen_type[GFC_MAX_DIMENSIONS];
1070 struct gfc_expr *offset;
1074 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1077 /* Component reference nodes. A variable is stored as an expression
1078 node that points to the base symbol. After that, a singly linked
1079 list of component reference nodes gives the variable's complete
1080 resolution. The array_ref component may be present and comes
1081 before the component component. */
1084 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1087 typedef struct gfc_ref
1093 struct gfc_array_ref ar;
1097 gfc_component *component;
1104 struct gfc_expr *start, *end; /* Substring */
1105 gfc_charlen *length;
1112 struct gfc_ref *next;
1116 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1119 /* Structures representing intrinsic symbols and their arguments lists. */
1120 typedef struct gfc_intrinsic_arg
1122 char name[GFC_MAX_SYMBOL_LEN + 1];
1126 gfc_actual_arglist *actual;
1128 struct gfc_intrinsic_arg *next;
1134 /* Specifies the various kinds of check functions used to verify the
1135 argument lists of intrinsic functions. fX with X an integer refer
1136 to check functions of intrinsics with X arguments. f1m is used for
1137 the MAX and MIN intrinsics which can have an arbitrary number of
1138 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1139 these have special semantics. */
1144 try (*f1)(struct gfc_expr *);
1145 try (*f1m)(gfc_actual_arglist *);
1146 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1147 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1148 try (*f3ml)(gfc_actual_arglist *);
1149 try (*f3red)(gfc_actual_arglist *);
1150 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1152 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1153 struct gfc_expr *, struct gfc_expr *);
1157 /* Like gfc_check_f, these specify the type of the simplification
1158 function associated with an intrinsic. The fX are just like in
1159 gfc_check_f. cc is used for type conversion functions. */
1163 struct gfc_expr *(*f0)(void);
1164 struct gfc_expr *(*f1)(struct gfc_expr *);
1165 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1166 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1168 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1169 struct gfc_expr *, struct gfc_expr *);
1170 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1171 struct gfc_expr *, struct gfc_expr *,
1173 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1177 /* Again like gfc_check_f, these specify the type of the resolution
1178 function associated with an intrinsic. The fX are just like in
1179 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1184 void (*f0)(struct gfc_expr *);
1185 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1186 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1187 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1188 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1190 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1191 struct gfc_expr *, struct gfc_expr *);
1192 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1193 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1194 void (*s1)(struct gfc_code *);
1199 typedef struct gfc_intrinsic_sym
1201 const char *name, *lib_name;
1202 gfc_intrinsic_arg *formal;
1204 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1206 gfc_simplify_f simplify;
1208 gfc_resolve_f resolve;
1209 struct gfc_intrinsic_sym *specific_head, *next;
1210 gfc_generic_isym_id generic_id;
1216 /* Expression nodes. The expression node types deserve explanations,
1217 since the last couple can be easily misconstrued:
1219 EXPR_OP Operator node pointing to one or two other nodes
1220 EXPR_FUNCTION Function call, symbol points to function's name
1221 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1222 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1223 which expresses structure, array and substring refs.
1224 EXPR_NULL The NULL pointer value (which also has a basic type).
1225 EXPR_SUBSTRING A substring of a constant string
1226 EXPR_STRUCTURE A structure constructor
1227 EXPR_ARRAY An array constructor. */
1231 #define GFC_RND_MODE GMP_RNDN
1233 typedef struct gfc_expr
1237 gfc_typespec ts; /* These two refer to the overall expression */
1240 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1242 /* Nonnull for functions and structure constructors */
1243 gfc_symtree *symtree;
1249 /* True if it is converted from Hollerith constant. */
1250 unsigned int from_H : 1;
1251 /* True if the expression is a call to a function that returns an array,
1252 and if we have decided not to allocate temporary data for that array. */
1253 unsigned int inline_noncopying_intrinsic : 1;
1254 /* Used to quickly find a given constructor by it's offset. */
1255 splay_tree con_by_offset;
1272 gfc_intrinsic_op operator;
1274 struct gfc_expr *op1, *op2;
1280 gfc_actual_arglist *actual;
1281 const char *name; /* Points to the ultimate name of the function */
1282 gfc_intrinsic_sym *isym;
1294 struct gfc_constructor *constructor;
1302 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1304 /* Structures for information associated with different kinds of
1305 numbers. The first set of integer parameters define all there is
1306 to know about a particular kind. The rest of the elements are
1307 computed from the first elements. */
1311 /* Values really representable by the target. */
1312 mpz_t huge, pedantic_min_int, min_int;
1314 int kind, radix, digits, bit_size, range;
1316 /* True if the C type of the given name maps to this precision.
1317 Note that more than one bit can be set. */
1318 unsigned int c_char : 1;
1319 unsigned int c_short : 1;
1320 unsigned int c_int : 1;
1321 unsigned int c_long : 1;
1322 unsigned int c_long_long : 1;
1326 extern gfc_integer_info gfc_integer_kinds[];
1333 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1334 unsigned int c_bool : 1;
1338 extern gfc_logical_info gfc_logical_kinds[];
1343 mpfr_t epsilon, huge, tiny, subnormal;
1344 int kind, radix, digits, min_exponent, max_exponent;
1345 int range, precision;
1347 /* The precision of the type as reported by GET_MODE_PRECISION. */
1350 /* True if the C type of the given name maps to this precision.
1351 Note that more than one bit can be set. */
1352 unsigned int c_float : 1;
1353 unsigned int c_double : 1;
1354 unsigned int c_long_double : 1;
1358 extern gfc_real_info gfc_real_kinds[];
1361 /* Equivalence structures. Equivalent lvalues are linked along the
1362 *eq pointer, equivalence sets are strung along the *next node. */
1363 typedef struct gfc_equiv
1365 struct gfc_equiv *next, *eq;
1372 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1374 /* Holds a single equivalence member after processing. */
1375 typedef struct gfc_equiv_info
1378 HOST_WIDE_INT offset;
1379 HOST_WIDE_INT length;
1380 struct gfc_equiv_info *next;
1383 /* Holds equivalence groups, after they have been processed. */
1384 typedef struct gfc_equiv_list
1386 gfc_equiv_info *equiv;
1387 struct gfc_equiv_list *next;
1390 /* gfc_case stores the selector list of a case statement. The *low
1391 and *high pointers can point to the same expression in the case of
1392 a single value. If *high is NULL, the selection is from *low
1393 upwards, if *low is NULL the selection is *high downwards.
1395 This structure has separate fields to allow single and double linked
1396 lists of CASEs at the same time. The singe linked list along the NEXT
1397 field is a list of cases for a single CASE label. The double linked
1398 list along the LEFT/RIGHT fields is used to detect overlap and to
1399 build a table of the cases for SELECT constructs with a CHARACTER
1402 typedef struct gfc_case
1404 /* Where we saw this case. */
1408 /* Case range values. If (low == high), it's a single value. If one of
1409 the labels is NULL, it's an unbounded case. If both are NULL, this
1410 represents the default case. */
1411 gfc_expr *low, *high;
1413 /* Next case label in the list of cases for a single CASE label. */
1414 struct gfc_case *next;
1416 /* Used for detecting overlap, and for code generation. */
1417 struct gfc_case *left, *right;
1419 /* True if this case label can never be matched. */
1424 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1429 gfc_expr *var, *start, *end, *step;
1433 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1436 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1438 typedef struct gfc_alloc
1441 struct gfc_alloc *next;
1445 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1450 gfc_expr *unit, *file, *status, *access, *form, *recl,
1451 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1459 gfc_expr *unit, *status, *iostat, *iomsg;
1467 gfc_expr *unit, *iostat, *iomsg;
1475 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1476 *name, *access, *sequential, *direct, *form, *formatted,
1477 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1478 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1488 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1490 gfc_symbol *namelist;
1491 /* A format_label of `format_asterisk' indicates the "*" format */
1492 gfc_st_label *format_label;
1493 gfc_st_label *err, *end, *eor;
1495 locus eor_where, end_where, err_where;
1500 typedef struct gfc_forall_iterator
1502 gfc_expr *var, *start, *end, *stride;
1503 struct gfc_forall_iterator *next;
1505 gfc_forall_iterator;
1508 /* Executable statements that fill gfc_code structures. */
1511 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1512 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1513 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1514 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1515 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1516 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1517 EXEC_OPEN, EXEC_CLOSE,
1518 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1519 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1520 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1521 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1522 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1523 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1524 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1529 typedef struct gfc_code
1533 struct gfc_code *block, *next;
1536 gfc_st_label *here, *label, *label2, *label3;
1537 gfc_symtree *symtree;
1538 gfc_expr *expr, *expr2;
1539 /* A name isn't sufficient to identify a subroutine, we need the actual
1540 symbol for the interface definition.
1541 const char *sub_name; */
1542 gfc_symbol *resolved_sym;
1546 gfc_actual_arglist *actual;
1547 gfc_case *case_list;
1548 gfc_iterator *iterator;
1549 gfc_alloc *alloc_list;
1552 gfc_filepos *filepos;
1553 gfc_inquire *inquire;
1555 gfc_forall_iterator *forall_iterator;
1556 struct gfc_code *whichloop;
1558 gfc_entry_list *entry;
1559 gfc_omp_clauses *omp_clauses;
1560 const char *omp_name;
1561 gfc_namelist *omp_namelist;
1564 ext; /* Points to additional structures required by statement */
1566 /* Backend_decl is used for cycle and break labels in do loops, and
1567 probably for other constructs as well, once we translate them. */
1573 /* Storage for DATA statements. */
1574 typedef struct gfc_data_variable
1578 struct gfc_data_variable *list, *next;
1583 typedef struct gfc_data_value
1585 unsigned int repeat;
1587 struct gfc_data_value *next;
1592 typedef struct gfc_data
1594 gfc_data_variable *var;
1595 gfc_data_value *value;
1598 struct gfc_data *next;
1602 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1603 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1604 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1607 /* Structure for holding compile options */
1611 gfc_source_form source_form;
1612 /* Maximum line lengths in fixed- and free-form source, respectively.
1613 When fixed_line_length or free_line_length are 0, the whole line is used,
1614 regardless of length.
1616 If the user requests a fixed_line_length <7 then gfc_init_options()
1617 emits a fatal error. */
1618 int fixed_line_length;
1619 int free_line_length;
1620 /* Maximum number of continuation lines in fixed- and free-form source,
1622 int max_continue_fixed;
1623 int max_continue_free;
1624 int max_identifier_length;
1629 int warn_conversion;
1630 int warn_implicit_interface;
1631 int warn_line_truncation;
1632 int warn_surprising;
1637 int flag_all_intrinsics;
1638 int flag_default_double;
1639 int flag_default_integer;
1640 int flag_default_real;
1642 int flag_underscoring;
1643 int flag_second_underscore;
1644 int flag_implicit_none;
1645 int flag_max_stack_var_size;
1646 int flag_range_check;
1647 int flag_pack_derived;
1648 int flag_repack_arrays;
1649 int flag_preprocessed;
1653 int flag_external_blas;
1654 int blas_matmul_limit;
1655 int flag_cray_pointer;
1663 int warn_nonstd_intrinsics;
1667 int max_subrecord_length;
1671 extern gfc_option_t gfc_option;
1673 /* Constructor nodes for array and structure constructors. */
1674 typedef struct gfc_constructor
1677 gfc_iterator *iterator;
1679 struct gfc_constructor *next;
1682 mpz_t offset; /* Record the offset of array element which appears in
1683 data statement like "data a(5)/4/". */
1684 gfc_component *component; /* Record the component being initialized. */
1687 mpz_t repeat; /* Record the repeat number of initial values in data
1688 statement like "data a/5*10/". */
1693 typedef struct iterator_stack
1695 gfc_symtree *variable;
1697 struct iterator_stack *prev;
1700 extern iterator_stack *iter_stack;
1702 /************************ Function prototypes *************************/
1705 void gfc_formalize_init_value (gfc_symbol *);
1706 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1707 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1708 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1709 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1712 void gfc_scanner_done_1 (void);
1713 void gfc_scanner_init_1 (void);
1715 void gfc_add_include_path (const char *, bool);
1716 void gfc_add_intrinsic_modules_path (const char *);
1717 void gfc_release_include_path (void);
1718 FILE *gfc_open_included_file (const char *, bool, bool);
1719 FILE *gfc_open_intrinsic_module (const char *);
1721 int gfc_at_end (void);
1722 int gfc_at_eof (void);
1723 int gfc_at_bol (void);
1724 int gfc_at_eol (void);
1725 void gfc_advance_line (void);
1726 int gfc_check_include (void);
1728 void gfc_skip_comments (void);
1729 int gfc_next_char_literal (int);
1730 int gfc_next_char (void);
1731 int gfc_peek_char (void);
1732 void gfc_error_recovery (void);
1733 void gfc_gobble_whitespace (void);
1734 try gfc_new_file (void);
1735 const char * gfc_read_orig_filename (const char *, const char **);
1737 extern gfc_source_form gfc_current_form;
1738 extern const char *gfc_source_file;
1739 extern locus gfc_current_locus;
1742 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1743 void gfc_free (void *);
1744 int gfc_terminal_width(void);
1745 void gfc_clear_ts (gfc_typespec *);
1746 FILE *gfc_open_file (const char *);
1747 const char *gfc_basic_typename (bt);
1748 const char *gfc_typename (gfc_typespec *);
1750 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1751 "=" : gfc_code2string (intrinsic_operators, OP))
1753 const char *gfc_code2string (const mstring *, int);
1754 int gfc_string2code (const mstring *, const char *);
1755 const char *gfc_intent_string (sym_intent);
1757 void gfc_init_1 (void);
1758 void gfc_init_2 (void);
1759 void gfc_done_1 (void);
1760 void gfc_done_2 (void);
1763 unsigned int gfc_init_options (unsigned int, const char **);
1764 int gfc_handle_option (size_t, const char *, int);
1765 bool gfc_post_options (const char **);
1768 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1772 typedef struct gfc_error_buf
1775 size_t allocated, index;
1779 void gfc_error_init_1 (void);
1780 void gfc_buffer_error (int);
1782 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1783 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1784 void gfc_clear_warning (void);
1785 void gfc_warning_check (void);
1787 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1788 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1789 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1790 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1791 void gfc_clear_error (void);
1792 int gfc_error_check (void);
1793 int gfc_error_flag_test (void);
1795 notification gfc_notification_std (int);
1796 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1798 /* A general purpose syntax error. */
1799 #define gfc_syntax_error(ST) \
1800 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1802 void gfc_push_error (gfc_error_buf *);
1803 void gfc_pop_error (gfc_error_buf *);
1804 void gfc_free_error (gfc_error_buf *);
1806 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1807 void gfc_status_char (char);
1809 void gfc_get_errors (int *, int *);
1812 void gfc_arith_init_1 (void);
1813 void gfc_arith_done_1 (void);
1814 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1815 arith gfc_check_integer_range (mpz_t p, int kind);
1818 int gfc_validate_kind (bt, int, bool);
1819 extern int gfc_index_integer_kind;
1820 extern int gfc_default_integer_kind;
1821 extern int gfc_max_integer_kind;
1822 extern int gfc_default_real_kind;
1823 extern int gfc_default_double_kind;
1824 extern int gfc_default_character_kind;
1825 extern int gfc_default_logical_kind;
1826 extern int gfc_default_complex_kind;
1827 extern int gfc_c_int_kind;
1828 extern int gfc_intio_kind;
1829 extern int gfc_numeric_storage_size;
1830 extern int gfc_character_storage_size;
1833 void gfc_clear_new_implicit (void);
1834 try gfc_add_new_implicit_range (int, int);
1835 try gfc_merge_new_implicit (gfc_typespec *);
1836 void gfc_set_implicit_none (void);
1838 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1839 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1841 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1842 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1844 void gfc_set_sym_referenced (gfc_symbol * sym);
1846 try gfc_add_attribute (symbol_attribute *, locus *);
1847 try gfc_add_allocatable (symbol_attribute *, locus *);
1848 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1849 try gfc_add_external (symbol_attribute *, locus *);
1850 try gfc_add_intrinsic (symbol_attribute *, locus *);
1851 try gfc_add_optional (symbol_attribute *, locus *);
1852 try gfc_add_pointer (symbol_attribute *, locus *);
1853 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1854 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1855 try gfc_mod_pointee_as (gfc_array_spec *as);
1856 try gfc_add_result (symbol_attribute *, const char *, locus *);
1857 try gfc_add_save (symbol_attribute *, const char *, locus *);
1858 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
1859 try gfc_add_saved_common (symbol_attribute *, locus *);
1860 try gfc_add_target (symbol_attribute *, locus *);
1861 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1862 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1863 try gfc_add_common (symbol_attribute *, locus *);
1864 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1865 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1866 try gfc_add_data (symbol_attribute *, const char *, locus *);
1867 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1868 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1869 try gfc_add_elemental (symbol_attribute *, locus *);
1870 try gfc_add_pure (symbol_attribute *, locus *);
1871 try gfc_add_recursive (symbol_attribute *, locus *);
1872 try gfc_add_function (symbol_attribute *, const char *, locus *);
1873 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1874 try gfc_add_value (symbol_attribute *, const char *, locus *);
1875 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
1877 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1878 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1879 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1880 try gfc_add_procedure (symbol_attribute *, procedure_type,
1881 const char *, locus *);
1882 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1883 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1884 gfc_formal_arglist *, locus *);
1885 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1887 void gfc_clear_attr (symbol_attribute *);
1888 try gfc_missing_attr (symbol_attribute *, locus *);
1889 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1891 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1892 gfc_symbol *gfc_use_derived (gfc_symbol *);
1893 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1894 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1896 gfc_st_label *gfc_get_st_label (int);
1897 void gfc_free_st_label (gfc_st_label *);
1898 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1899 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1901 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1902 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1903 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1904 gfc_user_op *gfc_get_uop (const char *);
1905 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1906 void gfc_free_symbol (gfc_symbol *);
1907 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1908 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1909 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1910 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1911 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1912 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1913 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1915 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1917 void gfc_undo_symbols (void);
1918 void gfc_commit_symbols (void);
1919 void gfc_commit_symbol (gfc_symbol * sym);
1920 void gfc_free_namespace (gfc_namespace *);
1922 void gfc_symbol_init_2 (void);
1923 void gfc_symbol_done_2 (void);
1925 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1926 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1927 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1928 void gfc_save_all (gfc_namespace *);
1930 void gfc_symbol_state (void);
1932 gfc_gsymbol *gfc_get_gsymbol (const char *);
1933 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1936 extern int gfc_init_expr;
1938 /* Given a symbol that we have decided is intrinsic, mark it as such
1939 by placing it into a special module that is otherwise impossible to
1942 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1944 void gfc_intrinsic_init_1 (void);
1945 void gfc_intrinsic_done_1 (void);
1947 char gfc_type_letter (bt);
1948 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1949 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1950 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1951 int gfc_generic_intrinsic (const char *);
1952 int gfc_specific_intrinsic (const char *);
1953 int gfc_intrinsic_name (const char *, int);
1954 int gfc_intrinsic_actual_ok (const char *, const bool);
1955 gfc_intrinsic_sym *gfc_find_function (const char *);
1957 match gfc_intrinsic_func_interface (gfc_expr *, int);
1958 match gfc_intrinsic_sub_interface (gfc_code *, int);
1961 void gfc_simplify_init_1 (void);
1963 /* match.c -- FIXME */
1964 void gfc_free_iterator (gfc_iterator *, int);
1965 void gfc_free_forall_iterator (gfc_forall_iterator *);
1966 void gfc_free_alloc_list (gfc_alloc *);
1967 void gfc_free_namelist (gfc_namelist *);
1968 void gfc_free_equiv (gfc_equiv *);
1969 void gfc_free_data (gfc_data *);
1970 void gfc_free_case_list (gfc_case *);
1972 /* matchexp.c -- FIXME too? */
1973 gfc_expr *gfc_get_parentheses (gfc_expr *);
1976 void gfc_free_omp_clauses (gfc_omp_clauses *);
1977 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
1978 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
1979 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
1980 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
1983 void gfc_free_actual_arglist (gfc_actual_arglist *);
1984 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1985 const char *gfc_extract_int (gfc_expr *, int *);
1986 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
1988 gfc_expr *gfc_build_conversion (gfc_expr *);
1989 void gfc_free_ref_list (gfc_ref *);
1990 void gfc_type_convert_binary (gfc_expr *);
1991 int gfc_is_constant_expr (gfc_expr *);
1992 try gfc_simplify_expr (gfc_expr *, int);
1993 int gfc_has_vector_index (gfc_expr *);
1995 gfc_expr *gfc_get_expr (void);
1996 void gfc_free_expr (gfc_expr *);
1997 void gfc_replace_expr (gfc_expr *, gfc_expr *);
1998 gfc_expr *gfc_int_expr (int);
1999 gfc_expr *gfc_logical_expr (int, locus *);
2000 mpz_t *gfc_copy_shape (mpz_t *, int);
2001 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2002 gfc_expr *gfc_copy_expr (gfc_expr *);
2004 try gfc_specification_expr (gfc_expr *);
2006 int gfc_numeric_ts (gfc_typespec *);
2007 int gfc_kind_max (gfc_expr *, gfc_expr *);
2009 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2010 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2011 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2012 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2014 gfc_expr *gfc_default_initializer (gfc_typespec *);
2015 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2017 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
2020 extern gfc_code new_st;
2022 void gfc_clear_new_st (void);
2023 gfc_code *gfc_get_code (void);
2024 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2025 void gfc_free_statement (gfc_code *);
2026 void gfc_free_statements (gfc_code *);
2029 try gfc_resolve_expr (gfc_expr *);
2030 void gfc_resolve (gfc_namespace *);
2031 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2032 int gfc_impure_variable (gfc_symbol *);
2033 int gfc_pure (gfc_symbol *);
2034 int gfc_elemental (gfc_symbol *);
2035 try gfc_resolve_iterator (gfc_iterator *, bool);
2036 try gfc_resolve_index (gfc_expr *, int);
2037 try gfc_resolve_dim_arg (gfc_expr *);
2038 int gfc_is_formal_arg (void);
2041 void gfc_free_array_spec (gfc_array_spec *);
2042 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2044 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2045 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2046 try gfc_resolve_array_spec (gfc_array_spec *, int);
2048 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2050 gfc_expr *gfc_start_constructor (bt, int, locus *);
2051 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2052 void gfc_free_constructor (gfc_constructor *);
2053 void gfc_simplify_iterator_var (gfc_expr *);
2054 try gfc_expand_constructor (gfc_expr *);
2055 int gfc_constant_ac (gfc_expr *);
2056 int gfc_expanded_ac (gfc_expr *);
2057 void gfc_resolve_character_array_constructor (gfc_expr *);
2058 try gfc_resolve_array_constructor (gfc_expr *);
2059 try gfc_check_constructor_type (gfc_expr *);
2060 try gfc_check_iter_variable (gfc_expr *);
2061 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2062 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
2063 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2064 try gfc_array_size (gfc_expr *, mpz_t *);
2065 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2066 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2067 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2068 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2069 gfc_constructor *gfc_get_constructor (void);
2070 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
2071 try spec_size (gfc_array_spec *, mpz_t *);
2072 int gfc_is_compile_time_shape (gfc_array_spec *);
2074 /* interface.c -- FIXME: some of these should be in symbol.c */
2075 void gfc_free_interface (gfc_interface *);
2076 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2077 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2078 void gfc_check_interfaces (gfc_namespace *);
2079 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2080 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2081 gfc_actual_arglist **);
2082 try gfc_extend_expr (gfc_expr *);
2083 void gfc_free_formal_arglist (gfc_formal_arglist *);
2084 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2085 try gfc_add_interface (gfc_symbol * sym);
2088 extern gfc_st_label format_asterisk;
2090 void gfc_free_open (gfc_open *);
2091 try gfc_resolve_open (gfc_open *);
2092 void gfc_free_close (gfc_close *);
2093 try gfc_resolve_close (gfc_close *);
2094 void gfc_free_filepos (gfc_filepos *);
2095 try gfc_resolve_filepos (gfc_filepos *);
2096 void gfc_free_inquire (gfc_inquire *);
2097 try gfc_resolve_inquire (gfc_inquire *);
2098 void gfc_free_dt (gfc_dt *);
2099 try gfc_resolve_dt (gfc_dt *);
2102 void gfc_module_init_2 (void);
2103 void gfc_module_done_2 (void);
2104 void gfc_dump_module (const char *, int);
2105 bool gfc_check_access (gfc_access, gfc_access);
2108 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2109 symbol_attribute gfc_expr_attr (gfc_expr *);
2112 void gfc_generate_code (gfc_namespace *);
2113 void gfc_generate_module_code (gfc_namespace *);
2116 typedef int (*compare_fn) (void *, void *);
2117 void gfc_insert_bbt (void *, void *, compare_fn);
2118 void gfc_delete_bbt (void *, void *, compare_fn);
2120 /* dump-parse-tree.c */
2121 void gfc_show_actual_arglist (gfc_actual_arglist *);
2122 void gfc_show_array_ref (gfc_array_ref *);
2123 void gfc_show_array_spec (gfc_array_spec *);
2124 void gfc_show_attr (symbol_attribute *);
2125 void gfc_show_code (int, gfc_code *);
2126 void gfc_show_components (gfc_symbol *);
2127 void gfc_show_constructor (gfc_constructor *);
2128 void gfc_show_equiv (gfc_equiv *);
2129 void gfc_show_expr (gfc_expr *);
2130 void gfc_show_namelist (gfc_namelist *);
2131 void gfc_show_namespace (gfc_namespace *);
2132 void gfc_show_ref (gfc_ref *);
2133 void gfc_show_symbol (gfc_symbol *);
2134 void gfc_show_typespec (gfc_typespec *);
2137 try gfc_parse_file (void);
2138 void global_used (gfc_gsymbol *, locus *);
2141 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2143 #endif /* GCC_GFORTRAN_H */