1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
23 #ifndef GCC_GFORTRAN_H
24 #define GCC_GFORTRAN_H
26 /* It's probably insane to have this large of a header file, but it
27 seemed like everything had to be recompiled anyway when a change
28 was made to a header file, and there were ordering issues with
29 multiple header files. Besides, Microsoft's winnt.h was 250k last
30 time I looked, so by comparison this is perfectly reasonable. */
34 #include "coretypes.h"
37 /* The following ifdefs are recommended by the autoconf documentation
38 for any code using alloca. */
40 /* AIX requires this to be the first thing in the file. */
42 #else /* not __GNUC__ */
45 #else /* do not HAVE_ALLOCA_H */
49 #ifndef alloca /* predefined by HP cc +Olibcalls */
51 #endif /* not predefined */
53 #endif /* do not HAVE_ALLOCA_H */
54 #endif /* not __GNUC__ */
56 /* Major control parameters. */
58 #define GFC_MAX_SYMBOL_LEN 63
59 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
60 #define GFC_MAX_DIMENSIONS 7 /* Maximum dimensions in an array. */
61 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
63 #define free(x) Use_gfc_free_instead_of_free()
64 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
67 #define NULL ((void *) 0)
71 #define stringize(x) expand_macro(x)
72 #define expand_macro(x) # x
74 /* For a the runtime library, a standard prefix is a requirement to
75 avoid cluttering the namespace with things nobody asked for. It's
76 ugly to look at and a pain to type when you add the prefix by hand,
77 so we hide it behind a macro. */
78 #define PREFIX(x) "_gfortran_" x
81 #define BLANK_COMMON_NAME "__BLNK__"
83 /* Macro to initialize an mstring structure. */
84 #define minit(s, t) { s, NULL, t }
86 /* Structure for storing strings to be matched by gfc_match_string. */
96 /* Flags to specify which standard/extension contains a feature. */
97 #define GFC_STD_LEGACY (1<<6) /* Backward compatibility. */
98 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */
99 #define GFC_STD_F2003 (1<<4) /* New in F2003. */
100 /* Note that no features were obsoleted nor deleted in F2003. */
101 #define GFC_STD_F95 (1<<3) /* New in F95. */
102 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
103 #define GFC_STD_F95_OBS (1<<1) /* Obsoleted in F95. */
104 #define GFC_STD_F77 (1<<0) /* Up to and including F77. */
106 /* Bitmasks for the various FPE that can be enabled. */
107 #define GFC_FPE_INVALID (1<<0)
108 #define GFC_FPE_DENORMAL (1<<1)
109 #define GFC_FPE_ZERO (1<<2)
110 #define GFC_FPE_OVERFLOW (1<<3)
111 #define GFC_FPE_UNDERFLOW (1<<4)
112 #define GFC_FPE_PRECISION (1<<5)
114 /* Keep this in sync with libgfortran/io/io.h ! */
117 { CONVERT_NATIVE=0, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
121 /*************************** Enums *****************************/
123 /* The author remains confused to this day about the convention of
124 returning '0' for 'SUCCESS'... or was it the other way around? The
125 following enum makes things much more readable. We also start
126 values off at one instead of zero. */
129 { SUCCESS = 1, FAILURE }
132 /* This is returned by gfc_notification_std to know if, given the flags
133 that were given (-std=, -pedantic) we should issue an error, a warning
137 { SILENT, WARNING, ERROR }
140 /* Matchers return one of these three values. The difference between
141 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
142 successful, but that something non-syntactic is wrong and an error
143 has already been issued. */
146 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
150 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
154 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
155 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH
159 /* Expression node types. */
161 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
162 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
168 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
169 AS_ASSUMED_SIZE, AS_UNKNOWN
174 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
177 /* Statement label types. */
179 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
180 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
184 /* Intrinsic operators. */
186 { GFC_INTRINSIC_BEGIN = 0,
187 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
188 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
189 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
190 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
191 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
192 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
193 INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES,
194 GFC_INTRINSIC_END /* Sentinel */
199 /* Strings for all intrinsic operators. */
200 extern mstring intrinsic_operators[];
203 /* This macro is the number of intrinsic operators that exist.
204 Assumptions are made about the numbering of the interface_op enums. */
205 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
207 /* Arithmetic results. */
209 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
210 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
217 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
218 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
219 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
220 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
221 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
222 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
223 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
224 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
225 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_INQUIRE, ST_INTERFACE,
226 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
227 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
228 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
229 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
230 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
231 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
232 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
233 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
234 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
235 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
236 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
237 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
238 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
239 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE,
245 /* Types of interfaces that we can have. Assignment interfaces are
246 considered to be intrinsic operators. */
249 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
250 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
254 /* Symbol flavors: these are all mutually exclusive.
255 10 elements = 4 bits. */
256 typedef enum sym_flavor
258 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
259 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST
263 /* Procedure types. 7 elements = 3 bits. */
264 typedef enum procedure_type
265 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
266 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
271 typedef enum sym_intent
272 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
277 typedef enum gfc_access
278 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
282 /* Flags to keep track of where an interface came from.
283 4 elements = 2 bits. */
285 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
289 /* Strings for all symbol attributes. We use these for dumping the
290 parse tree, in error messages, and also when reading and writing
291 modules. In symbol.c. */
292 extern const mstring flavors[];
293 extern const mstring procedures[];
294 extern const mstring intents[];
295 extern const mstring access_types[];
296 extern const mstring ifsrc_types[];
298 /* Enumeration of all the generic intrinsic functions. Used by the
299 backend for identification of a function. */
301 enum gfc_generic_isym_id
303 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
304 the backend (eg. KIND). */
336 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
346 GFC_ISYM_DOT_PRODUCT,
432 GFC_ISYM_SET_EXPONENT,
464 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
466 /************************* Structures *****************************/
468 /* Used for keeping things in balanced binary trees. */
469 #define BBT_HEADER(self) int priority; struct self *left, *right
471 /* Symbol attribute structure. */
474 /* Variable attributes. */
475 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
476 optional:1, pointer:1, save:1, target:1,
477 dummy:1, result:1, assign:1, threadprivate:1;
479 unsigned data:1, /* Symbol is named in a DATA statement. */
480 use_assoc:1; /* Symbol has been use-associated. */
482 unsigned in_namelist:1, in_common:1, in_equivalence:1;
483 unsigned function:1, subroutine:1, generic:1;
484 unsigned implicit_type:1; /* Type defined via implicit rules. */
485 unsigned untyped:1; /* No implicit type could be found. */
487 /* Function/subroutine attributes */
488 unsigned sequence:1, elemental:1, pure:1, recursive:1;
489 unsigned unmaskable:1, masked:1, contained:1;
491 /* This is set if the subroutine doesn't return. Currently, this
492 is only possible for intrinsic subroutines. */
495 /* Set if this procedure is an alternate entry point. These procedures
496 don't have any code associated, and the backend will turn them into
497 thunks to the master function. */
500 /* Set if this is the master function for a procedure with multiple
502 unsigned entry_master:1;
504 /* Set if this is the master function for a function with multiple
505 entry points where characteristics of the entry points differ. */
506 unsigned mixed_entry_master:1;
508 /* Set if a function must always be referenced by an explicit interface. */
509 unsigned always_explicit:1;
511 /* Set if the symbol has been referenced in an expression. No further
512 modification of type or type parameters is permitted. */
513 unsigned referenced:1;
515 /* Set if the is the symbol for the main program. This is the least
516 cumbersome way to communicate this function property without
517 strcmp'ing with __MAIN everywhere. */
518 unsigned is_main_program:1;
520 /* Mutually exclusive multibit attributes. */
521 ENUM_BITFIELD (gfc_access) access:2;
522 ENUM_BITFIELD (sym_intent) intent:2;
523 ENUM_BITFIELD (sym_flavor) flavor:4;
524 ENUM_BITFIELD (ifsrc) if_source:2;
526 ENUM_BITFIELD (procedure_type) proc:3;
528 /* Special attributes for Cray pointers, pointees. */
529 unsigned cray_pointer:1, cray_pointee:1;
535 /* The following three structures are used to identify a location in
538 gfc_file is used to maintain a tree of the source files and how
539 they include each other
541 gfc_linebuf holds a single line of source code and information
542 which file it resides in
544 locus point to the sourceline and the character in the source
548 typedef struct gfc_file
550 struct gfc_file *included_by, *next, *up;
551 int inclusion_line, line;
555 typedef struct gfc_linebuf
557 #ifdef USE_MAPPED_LOCATION
558 source_location location;
562 struct gfc_file *file;
563 struct gfc_linebuf *next;
570 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
578 /* In order for the "gfc" format checking to work correctly, you must
579 have declared a typedef locus first. */
580 #if GCC_VERSION >= 4001
581 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
583 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
587 extern int gfc_suppress_error;
590 /* Character length structures hold the expression that gives the
591 length of a character variable. We avoid putting these into
592 gfc_typespec because doing so prevents us from doing structure
593 copies and forces us to deallocate any typespecs we create, as well
594 as structures that contain typespecs. They also can have multiple
595 character typespecs pointing to them.
597 These structures form a singly linked list within the current
598 namespace and are deallocated with the namespace. It is possible to
599 end up with gfc_charlen structures that have nothing pointing to them. */
601 typedef struct gfc_charlen
603 struct gfc_expr *length;
604 struct gfc_charlen *next;
611 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
613 /* Type specification structure. FIXME: derived and cl could be union??? */
618 struct gfc_symbol *derived;
619 gfc_charlen *cl; /* For character types only. */
623 /* Array specification. */
626 int rank; /* A rank of zero means that a variable is a scalar. */
628 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
630 /* These two fields are used with the Cray Pointer extension. */
631 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
632 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
633 AS_EXPLICIT, but we want to remember that we
639 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
642 /* Components of derived types. */
643 typedef struct gfc_component
648 int pointer, dimension;
653 struct gfc_expr *initializer;
654 struct gfc_component *next;
658 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
660 /* Formal argument lists are lists of symbols. */
661 typedef struct gfc_formal_arglist
663 /* Symbol representing the argument at this position in the arglist. */
664 struct gfc_symbol *sym;
665 /* Points to the next formal argument. */
666 struct gfc_formal_arglist *next;
670 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
673 /* The gfc_actual_arglist structure is for actual arguments. */
674 typedef struct gfc_actual_arglist
677 /* Alternate return label when the expr member is null. */
678 struct gfc_st_label *label;
680 /* This is set to the type of an eventual omitted optional
681 argument. This is used to determine if a hidden string length
682 argument has to be added to a function call. */
685 struct gfc_expr *expr;
686 struct gfc_actual_arglist *next;
690 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
693 /* Because a symbol can belong to multiple namelists, they must be
694 linked externally to the symbol itself. */
695 typedef struct gfc_namelist
697 struct gfc_symbol *sym;
698 struct gfc_namelist *next;
702 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
707 OMP_LIST_FIRSTPRIVATE,
708 OMP_LIST_LASTPRIVATE,
709 OMP_LIST_COPYPRIVATE,
713 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
725 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
729 /* Because a symbol can belong to multiple namelists, they must be
730 linked externally to the symbol itself. */
731 typedef struct gfc_omp_clauses
733 struct gfc_expr *if_expr;
734 struct gfc_expr *num_threads;
735 gfc_namelist *lists[OMP_LIST_NUM];
744 struct gfc_expr *chunk_size;
752 bool nowait, ordered;
756 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
759 /* The gfc_st_label structure is a doubly linked list attached to a
760 namespace that records the usage of statement labels within that
762 /* TODO: Make format/statement specifics a union. */
763 typedef struct gfc_st_label
765 BBT_HEADER(gfc_st_label);
769 gfc_sl_type defined, referenced;
771 struct gfc_expr *format;
780 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
781 typedef struct gfc_interface
783 struct gfc_symbol *sym;
785 struct gfc_interface *next;
789 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
792 /* User operator nodes. These are like stripped down symbols. */
797 gfc_interface *operator;
798 struct gfc_namespace *ns;
803 /* Symbol nodes. These are important things. They are what the
804 standard refers to as "entities". The possibly multiple names that
805 refer to the same entity are accomplished by a binary tree of
806 symtree structures that is balanced by the red-black method-- more
807 than one symtree node can point to any given symbol. */
809 typedef struct gfc_symbol
811 const char *name; /* Primary name, before renaming */
812 const char *module; /* Module this symbol came from */
816 symbol_attribute attr;
818 /* The interface member points to the formal argument list if the
819 symbol is a function or subroutine name. If the symbol is a
820 generic name, the generic member points to the list of
823 gfc_interface *generic;
824 gfc_access component_access;
826 gfc_formal_arglist *formal;
827 struct gfc_namespace *formal_ns;
829 struct gfc_expr *value; /* Parameter/Initializer value */
831 struct gfc_symbol *result; /* function result symbol */
832 gfc_component *components; /* Derived type components */
834 /* Defined only for Cray pointees; points to their pointer. */
835 struct gfc_symbol *cp_pointer;
837 struct gfc_symbol *common_next; /* Links for COMMON syms */
839 /* This is in fact a gfc_common_head but it is only used for pointer
840 comparisons to check if symbols are in the same common block. */
841 struct gfc_common_head* common_head;
843 /* Make sure setup code for dummy arguments is generated in the correct
849 gfc_namelist *namelist, *namelist_tail;
851 /* Change management fields. Symbols that might be modified by the
852 current statement have the mark member nonzero and are kept in a
853 singly linked list through the tlink field. Of these symbols,
854 symbols with old_symbol equal to NULL are symbols created within
855 the current statement. Otherwise, old_symbol points to a copy of
858 struct gfc_symbol *old_symbol, *tlink;
859 unsigned mark:1, new:1;
860 /* Nonzero if all equivalences associated with this symbol have been
862 unsigned equiv_built:1;
863 /* Set if this variable is used as an index name in a FORALL. */
864 unsigned forall_index:1;
866 struct gfc_namespace *ns; /* namespace containing this symbol */
873 /* This structure is used to keep track of symbols in common blocks. */
875 typedef struct gfc_common_head
878 char use_assoc, saved, threadprivate;
879 char name[GFC_MAX_SYMBOL_LEN + 1];
880 struct gfc_symbol *head;
884 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
887 /* A list of all the alternate entry points for a procedure. */
889 typedef struct gfc_entry_list
891 /* The symbol for this entry point. */
893 /* The zero-based id of this entry point. */
895 /* The LABEL_EXPR marking this entry point. */
897 /* The nest item in the list. */
898 struct gfc_entry_list *next;
902 #define gfc_get_entry_list() \
903 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
905 /* Within a namespace, symbols are pointed to by symtree nodes that
906 are linked together in a balanced binary tree. There can be
907 several symtrees pointing to the same symbol node via USE
910 typedef struct gfc_symtree
912 BBT_HEADER (gfc_symtree);
917 gfc_symbol *sym; /* Symbol associated with this node */
919 gfc_common_head *common;
926 /* A linked list of derived types in the namespace. */
927 typedef struct gfc_dt_list
929 struct gfc_symbol *derived;
930 struct gfc_dt_list *next;
934 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
937 /* A namespace describes the contents of procedure, module or
939 /* ??? Anything else use these? */
941 typedef struct gfc_namespace
943 /* Tree containing all the symbols in this namespace. */
944 gfc_symtree *sym_root;
945 /* Tree containing all the user-defined operators in the namespace. */
946 gfc_symtree *uop_root;
947 /* Tree containing all the common blocks. */
948 gfc_symtree *common_root;
950 /* If set_flag[letter] is set, an implicit type has been set for letter. */
951 int set_flag[GFC_LETTERS];
952 /* Keeps track of the implicit types associated with the letters. */
953 gfc_typespec default_type[GFC_LETTERS];
955 /* If this is a namespace of a procedure, this points to the procedure. */
956 struct gfc_symbol *proc_name;
957 /* If this is the namespace of a unit which contains executable
958 code, this points to it. */
959 struct gfc_code *code;
961 /* Points to the equivalences set up in this namespace. */
962 struct gfc_equiv *equiv;
964 /* Points to the equivalence groups produced by trans_common. */
965 struct gfc_equiv_list *equiv_lists;
967 gfc_interface *operator[GFC_INTRINSIC_OPS];
969 /* Points to the parent namespace, i.e. the namespace of a module or
970 procedure in which the procedure belonging to this namespace is
971 contained. The parent namespace points to this namespace either
972 directly via CONTAINED, or indirectly via the chain built by
974 struct gfc_namespace *parent;
975 /* CONTAINED points to the first contained namespace. Sibling
976 namespaces are chained via SIBLING. */
977 struct gfc_namespace *contained, *sibling;
979 gfc_common_head blank_common;
980 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
982 gfc_st_label *st_labels;
983 /* This list holds information about all the data initializers in
985 struct gfc_data *data;
987 gfc_charlen *cl_list;
989 int save_all, seen_save, seen_implicit_none;
991 /* Normally we don't need to refcount namespaces. However when we read
992 a module containing a function with multiple entry points, this
993 will appear as several functions with the same formal namespace. */
996 /* A list of all alternate entry points to this procedure (or NULL). */
997 gfc_entry_list *entries;
999 /* A list of all derived types in this procedure (or NULL). */
1000 gfc_dt_list *derived_types;
1002 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1007 extern gfc_namespace *gfc_current_ns;
1009 /* Global symbols are symbols of global scope. Currently we only use
1010 this to detect collisions already when parsing.
1011 TODO: Extend to verify procedure calls. */
1013 typedef struct gfc_gsymbol
1015 BBT_HEADER(gfc_gsymbol);
1018 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1019 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1026 extern gfc_gsymbol *gfc_gsym_root;
1028 /* Information on interfaces being built. */
1031 interface_type type;
1035 gfc_intrinsic_op op;
1039 extern gfc_interface_info current_interface;
1042 /* Array reference. */
1043 typedef struct gfc_array_ref
1046 int dimen; /* # of components in the reference */
1050 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1051 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1052 *stride[GFC_MAX_DIMENSIONS];
1055 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1056 dimen_type[GFC_MAX_DIMENSIONS];
1058 struct gfc_expr *offset;
1062 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1065 /* Component reference nodes. A variable is stored as an expression
1066 node that points to the base symbol. After that, a singly linked
1067 list of component reference nodes gives the variable's complete
1068 resolution. The array_ref component may be present and comes
1069 before the component component. */
1072 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1075 typedef struct gfc_ref
1081 struct gfc_array_ref ar;
1085 gfc_component *component;
1092 struct gfc_expr *start, *end; /* Substring */
1093 gfc_charlen *length;
1100 struct gfc_ref *next;
1104 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1107 /* Structures representing intrinsic symbols and their arguments lists. */
1108 typedef struct gfc_intrinsic_arg
1110 char name[GFC_MAX_SYMBOL_LEN + 1];
1114 gfc_actual_arglist *actual;
1116 struct gfc_intrinsic_arg *next;
1122 /* Specifies the various kinds of check functions used to verify the
1123 argument lists of intrinsic functions. fX with X an integer refer
1124 to check functions of intrinsics with X arguments. f1m is used for
1125 the MAX and MIN intrinsics which can have an arbitrary number of
1126 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1127 these have special semantics. */
1132 try (*f1)(struct gfc_expr *);
1133 try (*f1m)(gfc_actual_arglist *);
1134 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1135 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1136 try (*f3ml)(gfc_actual_arglist *);
1137 try (*f3red)(gfc_actual_arglist *);
1138 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1140 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1141 struct gfc_expr *, struct gfc_expr *);
1145 /* Like gfc_check_f, these specify the type of the simplification
1146 function associated with an intrinsic. The fX are just like in
1147 gfc_check_f. cc is used for type conversion functions. */
1151 struct gfc_expr *(*f0)(void);
1152 struct gfc_expr *(*f1)(struct gfc_expr *);
1153 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1154 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1156 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1157 struct gfc_expr *, struct gfc_expr *);
1158 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1159 struct gfc_expr *, struct gfc_expr *,
1161 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1165 /* Again like gfc_check_f, these specify the type of the resolution
1166 function associated with an intrinsic. The fX are just like in
1167 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1172 void (*f0)(struct gfc_expr *);
1173 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1174 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1175 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1176 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1178 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1179 struct gfc_expr *, struct gfc_expr *);
1180 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1181 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1182 void (*s1)(struct gfc_code *);
1187 typedef struct gfc_intrinsic_sym
1189 const char *name, *lib_name;
1190 gfc_intrinsic_arg *formal;
1192 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1194 gfc_simplify_f simplify;
1196 gfc_resolve_f resolve;
1197 struct gfc_intrinsic_sym *specific_head, *next;
1198 gfc_generic_isym_id generic_id;
1204 /* Expression nodes. The expression node types deserve explanations,
1205 since the last couple can be easily misconstrued:
1207 EXPR_OP Operator node pointing to one or two other nodes
1208 EXPR_FUNCTION Function call, symbol points to function's name
1209 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1210 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1211 which expresses structure, array and substring refs.
1212 EXPR_NULL The NULL pointer value (which also has a basic type).
1213 EXPR_SUBSTRING A substring of a constant string
1214 EXPR_STRUCTURE A structure constructor
1215 EXPR_ARRAY An array constructor. */
1219 #define GFC_RND_MODE GMP_RNDN
1221 typedef struct gfc_expr
1225 gfc_typespec ts; /* These two refer to the overall expression */
1228 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1230 /* Nonnull for functions and structure constructors */
1231 gfc_symtree *symtree;
1237 /* True if it is converted from Hollerith constant. */
1238 unsigned int from_H : 1;
1239 /* True if the expression is a call to a function that returns an array,
1240 and if we have decided not to allocate temporary data for that array. */
1241 unsigned int inline_noncopying_intrinsic : 1;
1258 gfc_intrinsic_op operator;
1260 struct gfc_expr *op1, *op2;
1266 gfc_actual_arglist *actual;
1267 const char *name; /* Points to the ultimate name of the function */
1268 gfc_intrinsic_sym *isym;
1280 struct gfc_constructor *constructor;
1288 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1290 /* Structures for information associated with different kinds of
1291 numbers. The first set of integer parameters define all there is
1292 to know about a particular kind. The rest of the elements are
1293 computed from the first elements. */
1297 /* Values really representable by the target. */
1298 mpz_t huge, pedantic_min_int, min_int, max_int;
1300 int kind, radix, digits, bit_size, range;
1302 /* True if the C type of the given name maps to this precision.
1303 Note that more than one bit can be set. */
1304 unsigned int c_char : 1;
1305 unsigned int c_short : 1;
1306 unsigned int c_int : 1;
1307 unsigned int c_long : 1;
1308 unsigned int c_long_long : 1;
1312 extern gfc_integer_info gfc_integer_kinds[];
1319 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1320 unsigned int c_bool : 1;
1324 extern gfc_logical_info gfc_logical_kinds[];
1329 mpfr_t epsilon, huge, tiny, subnormal;
1330 int kind, radix, digits, min_exponent, max_exponent;
1331 int range, precision;
1333 /* The precision of the type as reported by GET_MODE_PRECISION. */
1336 /* True if the C type of the given name maps to this precision.
1337 Note that more than one bit can be set. */
1338 unsigned int c_float : 1;
1339 unsigned int c_double : 1;
1340 unsigned int c_long_double : 1;
1344 extern gfc_real_info gfc_real_kinds[];
1347 /* Equivalence structures. Equivalent lvalues are linked along the
1348 *eq pointer, equivalence sets are strung along the *next node. */
1349 typedef struct gfc_equiv
1351 struct gfc_equiv *next, *eq;
1358 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1360 /* Holds a single equivalence member after processing. */
1361 typedef struct gfc_equiv_info
1364 HOST_WIDE_INT offset;
1365 HOST_WIDE_INT length;
1366 struct gfc_equiv_info *next;
1369 /* Holds equivalence groups, after they have been processed. */
1370 typedef struct gfc_equiv_list
1372 gfc_equiv_info *equiv;
1373 struct gfc_equiv_list *next;
1376 /* gfc_case stores the selector list of a case statement. The *low
1377 and *high pointers can point to the same expression in the case of
1378 a single value. If *high is NULL, the selection is from *low
1379 upwards, if *low is NULL the selection is *high downwards.
1381 This structure has separate fields to allow single and double linked
1382 lists of CASEs at the same time. The singe linked list along the NEXT
1383 field is a list of cases for a single CASE label. The double linked
1384 list along the LEFT/RIGHT fields is used to detect overlap and to
1385 build a table of the cases for SELECT constructs with a CHARACTER
1388 typedef struct gfc_case
1390 /* Where we saw this case. */
1394 /* Case range values. If (low == high), it's a single value. If one of
1395 the labels is NULL, it's an unbounded case. If both are NULL, this
1396 represents the default case. */
1397 gfc_expr *low, *high;
1399 /* Next case label in the list of cases for a single CASE label. */
1400 struct gfc_case *next;
1402 /* Used for detecting overlap, and for code generation. */
1403 struct gfc_case *left, *right;
1405 /* True if this case label can never be matched. */
1410 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1415 gfc_expr *var, *start, *end, *step;
1419 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1422 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1424 typedef struct gfc_alloc
1427 struct gfc_alloc *next;
1431 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1436 gfc_expr *unit, *file, *status, *access, *form, *recl,
1437 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1445 gfc_expr *unit, *status, *iostat, *iomsg;
1453 gfc_expr *unit, *iostat, *iomsg;
1461 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1462 *name, *access, *sequential, *direct, *form, *formatted,
1463 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1464 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert;
1474 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1476 gfc_symbol *namelist;
1477 /* A format_label of `format_asterisk' indicates the "*" format */
1478 gfc_st_label *format_label;
1479 gfc_st_label *err, *end, *eor;
1481 locus eor_where, end_where, err_where;
1486 typedef struct gfc_forall_iterator
1488 gfc_expr *var, *start, *end, *stride;
1489 struct gfc_forall_iterator *next;
1491 gfc_forall_iterator;
1494 /* Executable statements that fill gfc_code structures. */
1497 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1498 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1499 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE,
1500 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1501 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1502 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1503 EXEC_OPEN, EXEC_CLOSE,
1504 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1505 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1506 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1507 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1508 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1509 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1510 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1515 typedef struct gfc_code
1519 struct gfc_code *block, *next;
1522 gfc_st_label *here, *label, *label2, *label3;
1523 gfc_symtree *symtree;
1524 gfc_expr *expr, *expr2;
1525 /* A name isn't sufficient to identify a subroutine, we need the actual
1526 symbol for the interface definition.
1527 const char *sub_name; */
1528 gfc_symbol *resolved_sym;
1532 gfc_actual_arglist *actual;
1533 gfc_case *case_list;
1534 gfc_iterator *iterator;
1535 gfc_alloc *alloc_list;
1538 gfc_filepos *filepos;
1539 gfc_inquire *inquire;
1541 gfc_forall_iterator *forall_iterator;
1542 struct gfc_code *whichloop;
1544 gfc_entry_list *entry;
1545 gfc_omp_clauses *omp_clauses;
1546 const char *omp_name;
1547 gfc_namelist *omp_namelist;
1550 ext; /* Points to additional structures required by statement */
1552 /* Backend_decl is used for cycle and break labels in do loops, and
1553 probably for other constructs as well, once we translate them. */
1559 /* Storage for DATA statements. */
1560 typedef struct gfc_data_variable
1564 struct gfc_data_variable *list, *next;
1569 typedef struct gfc_data_value
1571 unsigned int repeat;
1573 struct gfc_data_value *next;
1578 typedef struct gfc_data
1580 gfc_data_variable *var;
1581 gfc_data_value *value;
1584 struct gfc_data *next;
1588 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1589 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1590 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1593 /* Structure for holding compile options */
1597 gfc_source_form source_form;
1598 /* When fixed_line_length or free_line_length are 0, the whole line is used.
1600 Default is -1, the maximum line length mandated by the respective source
1602 for FORM_FREE GFC_MAX_LINE (132)
1605 If fixed_line_length or free_line_length is not 0 nor -1 then the user has
1606 requested a specific line-length.
1608 If the user requests a fixed_line_length <7 then gfc_init_options()
1609 emits a fatal error. */
1610 int fixed_line_length; /* maximum line length in fixed-form. */
1611 int free_line_length; /* maximum line length in free-form. */
1612 int max_identifier_length;
1617 int warn_conversion;
1618 int warn_implicit_interface;
1619 int warn_line_truncation;
1620 int warn_surprising;
1623 int warn_unused_labels;
1625 int flag_all_intrinsics;
1626 int flag_default_double;
1627 int flag_default_integer;
1628 int flag_default_real;
1630 int flag_underscoring;
1631 int flag_second_underscore;
1632 int flag_implicit_none;
1633 int flag_max_stack_var_size;
1634 int flag_module_access_private;
1635 int flag_no_backend;
1636 int flag_range_check;
1637 int flag_pack_derived;
1638 int flag_repack_arrays;
1639 int flag_preprocessed;
1643 int flag_cray_pointer;
1653 int warn_nonstd_intrinsics;
1660 extern gfc_option_t gfc_option;
1663 /* Constructor nodes for array and structure constructors. */
1664 typedef struct gfc_constructor
1667 gfc_iterator *iterator;
1669 struct gfc_constructor *next;
1672 mpz_t offset; /* Record the offset of array element which appears in
1673 data statement like "data a(5)/4/". */
1674 gfc_component *component; /* Record the component being initialized. */
1677 mpz_t repeat; /* Record the repeat number of initial values in data
1678 statement like "data a/5*10/". */
1683 typedef struct iterator_stack
1685 gfc_symtree *variable;
1687 struct iterator_stack *prev;
1690 extern iterator_stack *iter_stack;
1692 /************************ Function prototypes *************************/
1695 void gfc_formalize_init_value (gfc_symbol *);
1696 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1697 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1698 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1699 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1702 void gfc_scanner_done_1 (void);
1703 void gfc_scanner_init_1 (void);
1705 void gfc_add_include_path (const char *);
1706 void gfc_release_include_path (void);
1707 FILE *gfc_open_included_file (const char *, bool);
1709 int gfc_at_end (void);
1710 int gfc_at_eof (void);
1711 int gfc_at_bol (void);
1712 int gfc_at_eol (void);
1713 void gfc_advance_line (void);
1714 int gfc_check_include (void);
1716 void gfc_skip_comments (void);
1717 int gfc_next_char_literal (int);
1718 int gfc_next_char (void);
1719 int gfc_peek_char (void);
1720 void gfc_error_recovery (void);
1721 void gfc_gobble_whitespace (void);
1722 try gfc_new_file (void);
1723 const char * gfc_read_orig_filename (const char *, const char **);
1725 extern gfc_source_form gfc_current_form;
1726 extern const char *gfc_source_file;
1727 extern locus gfc_current_locus;
1730 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1731 void gfc_free (void *);
1732 int gfc_terminal_width(void);
1733 void gfc_clear_ts (gfc_typespec *);
1734 FILE *gfc_open_file (const char *);
1735 const char *gfc_basic_typename (bt);
1736 const char *gfc_typename (gfc_typespec *);
1738 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1739 "=" : gfc_code2string (intrinsic_operators, OP))
1741 const char *gfc_code2string (const mstring *, int);
1742 int gfc_string2code (const mstring *, const char *);
1743 const char *gfc_intent_string (sym_intent);
1745 void gfc_init_1 (void);
1746 void gfc_init_2 (void);
1747 void gfc_done_1 (void);
1748 void gfc_done_2 (void);
1751 unsigned int gfc_init_options (unsigned int, const char **);
1752 int gfc_handle_option (size_t, const char *, int);
1753 bool gfc_post_options (const char **);
1756 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1760 typedef struct gfc_error_buf
1763 size_t allocated, index;
1767 void gfc_error_init_1 (void);
1768 void gfc_buffer_error (int);
1770 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1771 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1772 void gfc_clear_warning (void);
1773 void gfc_warning_check (void);
1775 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1776 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1777 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1778 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1779 void gfc_clear_error (void);
1780 int gfc_error_check (void);
1782 notification gfc_notification_std (int);
1783 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1785 /* A general purpose syntax error. */
1786 #define gfc_syntax_error(ST) \
1787 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1789 void gfc_push_error (gfc_error_buf *);
1790 void gfc_pop_error (gfc_error_buf *);
1791 void gfc_free_error (gfc_error_buf *);
1793 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1794 void gfc_status_char (char);
1796 void gfc_get_errors (int *, int *);
1799 void gfc_arith_init_1 (void);
1800 void gfc_arith_done_1 (void);
1801 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1802 arith gfc_check_integer_range (mpz_t p, int kind);
1805 int gfc_validate_kind (bt, int, bool);
1806 extern int gfc_index_integer_kind;
1807 extern int gfc_default_integer_kind;
1808 extern int gfc_max_integer_kind;
1809 extern int gfc_default_real_kind;
1810 extern int gfc_default_double_kind;
1811 extern int gfc_default_character_kind;
1812 extern int gfc_default_logical_kind;
1813 extern int gfc_default_complex_kind;
1814 extern int gfc_c_int_kind;
1815 extern int gfc_large_io_int_kind;
1818 void gfc_clear_new_implicit (void);
1819 try gfc_add_new_implicit_range (int, int);
1820 try gfc_merge_new_implicit (gfc_typespec *);
1821 void gfc_set_implicit_none (void);
1823 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1824 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1826 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1827 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1829 void gfc_set_sym_referenced (gfc_symbol * sym);
1831 try gfc_add_attribute (symbol_attribute *, locus *, unsigned int);
1832 try gfc_add_allocatable (symbol_attribute *, locus *);
1833 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1834 try gfc_add_external (symbol_attribute *, locus *);
1835 try gfc_add_intrinsic (symbol_attribute *, locus *);
1836 try gfc_add_optional (symbol_attribute *, locus *);
1837 try gfc_add_pointer (symbol_attribute *, locus *);
1838 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1839 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1840 try gfc_mod_pointee_as (gfc_array_spec *as);
1841 try gfc_add_result (symbol_attribute *, const char *, locus *);
1842 try gfc_add_save (symbol_attribute *, const char *, locus *);
1843 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
1844 try gfc_add_saved_common (symbol_attribute *, locus *);
1845 try gfc_add_target (symbol_attribute *, locus *);
1846 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1847 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1848 try gfc_add_common (symbol_attribute *, locus *);
1849 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1850 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1851 try gfc_add_data (symbol_attribute *, const char *, locus *);
1852 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1853 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1854 try gfc_add_elemental (symbol_attribute *, locus *);
1855 try gfc_add_pure (symbol_attribute *, locus *);
1856 try gfc_add_recursive (symbol_attribute *, locus *);
1857 try gfc_add_function (symbol_attribute *, const char *, locus *);
1858 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1860 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1861 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1862 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1863 try gfc_add_procedure (symbol_attribute *, procedure_type,
1864 const char *, locus *);
1865 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1866 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1867 gfc_formal_arglist *, locus *);
1868 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1870 void gfc_clear_attr (symbol_attribute *);
1871 try gfc_missing_attr (symbol_attribute *, locus *);
1872 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1874 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1875 gfc_symbol *gfc_use_derived (gfc_symbol *);
1876 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1877 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1879 gfc_st_label *gfc_get_st_label (int);
1880 void gfc_free_st_label (gfc_st_label *);
1881 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1882 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1884 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1885 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1886 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1887 gfc_user_op *gfc_get_uop (const char *);
1888 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1889 void gfc_free_symbol (gfc_symbol *);
1890 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1891 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1892 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1893 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1894 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1895 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1896 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1898 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1900 void gfc_undo_symbols (void);
1901 void gfc_commit_symbols (void);
1902 void gfc_commit_symbol (gfc_symbol * sym);
1903 void gfc_free_namespace (gfc_namespace *);
1905 void gfc_symbol_init_2 (void);
1906 void gfc_symbol_done_2 (void);
1908 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1909 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1910 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1911 void gfc_save_all (gfc_namespace *);
1913 void gfc_symbol_state (void);
1915 gfc_gsymbol *gfc_get_gsymbol (const char *);
1916 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1919 extern int gfc_init_expr;
1921 /* Given a symbol that we have decided is intrinsic, mark it as such
1922 by placing it into a special module that is otherwise impossible to
1925 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1927 void gfc_intrinsic_init_1 (void);
1928 void gfc_intrinsic_done_1 (void);
1930 char gfc_type_letter (bt);
1931 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1932 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1933 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1934 int gfc_generic_intrinsic (const char *);
1935 int gfc_specific_intrinsic (const char *);
1936 int gfc_intrinsic_name (const char *, int);
1937 gfc_intrinsic_sym *gfc_find_function (const char *);
1939 match gfc_intrinsic_func_interface (gfc_expr *, int);
1940 match gfc_intrinsic_sub_interface (gfc_code *, int);
1943 void gfc_simplify_init_1 (void);
1945 /* match.c -- FIXME */
1946 void gfc_free_iterator (gfc_iterator *, int);
1947 void gfc_free_forall_iterator (gfc_forall_iterator *);
1948 void gfc_free_alloc_list (gfc_alloc *);
1949 void gfc_free_namelist (gfc_namelist *);
1950 void gfc_free_equiv (gfc_equiv *);
1951 void gfc_free_data (gfc_data *);
1952 void gfc_free_case_list (gfc_case *);
1954 /* matchexp.c -- FIXME too? */
1955 gfc_expr *gfc_get_parentheses (gfc_expr *);
1958 void gfc_free_omp_clauses (gfc_omp_clauses *);
1959 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
1960 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
1961 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
1962 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
1965 void gfc_free_actual_arglist (gfc_actual_arglist *);
1966 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1967 const char *gfc_extract_int (gfc_expr *, int *);
1969 gfc_expr *gfc_build_conversion (gfc_expr *);
1970 void gfc_free_ref_list (gfc_ref *);
1971 void gfc_type_convert_binary (gfc_expr *);
1972 int gfc_is_constant_expr (gfc_expr *);
1973 try gfc_simplify_expr (gfc_expr *, int);
1974 int gfc_has_vector_index (gfc_expr *);
1976 gfc_expr *gfc_get_expr (void);
1977 void gfc_free_expr (gfc_expr *);
1978 void gfc_replace_expr (gfc_expr *, gfc_expr *);
1979 gfc_expr *gfc_int_expr (int);
1980 gfc_expr *gfc_logical_expr (int, locus *);
1981 mpz_t *gfc_copy_shape (mpz_t *, int);
1982 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
1983 gfc_expr *gfc_copy_expr (gfc_expr *);
1985 try gfc_specification_expr (gfc_expr *);
1987 int gfc_numeric_ts (gfc_typespec *);
1988 int gfc_kind_max (gfc_expr *, gfc_expr *);
1990 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
1991 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
1992 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
1993 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
1995 gfc_expr *gfc_default_initializer (gfc_typespec *);
1996 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
1998 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
2001 extern gfc_code new_st;
2003 void gfc_clear_new_st (void);
2004 gfc_code *gfc_get_code (void);
2005 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2006 void gfc_free_statement (gfc_code *);
2007 void gfc_free_statements (gfc_code *);
2010 try gfc_resolve_expr (gfc_expr *);
2011 void gfc_resolve (gfc_namespace *);
2012 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2013 int gfc_impure_variable (gfc_symbol *);
2014 int gfc_pure (gfc_symbol *);
2015 int gfc_elemental (gfc_symbol *);
2016 try gfc_resolve_iterator (gfc_iterator *, bool);
2017 try gfc_resolve_index (gfc_expr *, int);
2018 try gfc_resolve_dim_arg (gfc_expr *);
2019 int gfc_is_formal_arg (void);
2022 void gfc_free_array_spec (gfc_array_spec *);
2023 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2025 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2026 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2027 try gfc_resolve_array_spec (gfc_array_spec *, int);
2029 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2031 gfc_expr *gfc_start_constructor (bt, int, locus *);
2032 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2033 void gfc_free_constructor (gfc_constructor *);
2034 void gfc_simplify_iterator_var (gfc_expr *);
2035 try gfc_expand_constructor (gfc_expr *);
2036 int gfc_constant_ac (gfc_expr *);
2037 int gfc_expanded_ac (gfc_expr *);
2038 void gfc_resolve_character_array_constructor (gfc_expr *);
2039 try gfc_resolve_array_constructor (gfc_expr *);
2040 try gfc_check_constructor_type (gfc_expr *);
2041 try gfc_check_iter_variable (gfc_expr *);
2042 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2043 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
2044 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2045 try gfc_array_size (gfc_expr *, mpz_t *);
2046 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2047 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2048 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2049 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2050 gfc_constructor *gfc_get_constructor (void);
2051 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
2052 try spec_size (gfc_array_spec *, mpz_t *);
2053 int gfc_is_compile_time_shape (gfc_array_spec *);
2055 /* interface.c -- FIXME: some of these should be in symbol.c */
2056 void gfc_free_interface (gfc_interface *);
2057 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2058 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2059 void gfc_check_interfaces (gfc_namespace *);
2060 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2061 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2062 gfc_actual_arglist **);
2063 try gfc_extend_expr (gfc_expr *);
2064 void gfc_free_formal_arglist (gfc_formal_arglist *);
2065 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2066 try gfc_add_interface (gfc_symbol * sym);
2069 extern gfc_st_label format_asterisk;
2071 void gfc_free_open (gfc_open *);
2072 try gfc_resolve_open (gfc_open *);
2073 void gfc_free_close (gfc_close *);
2074 try gfc_resolve_close (gfc_close *);
2075 void gfc_free_filepos (gfc_filepos *);
2076 try gfc_resolve_filepos (gfc_filepos *);
2077 void gfc_free_inquire (gfc_inquire *);
2078 try gfc_resolve_inquire (gfc_inquire *);
2079 void gfc_free_dt (gfc_dt *);
2080 try gfc_resolve_dt (gfc_dt *);
2083 void gfc_module_init_2 (void);
2084 void gfc_module_done_2 (void);
2085 void gfc_dump_module (const char *, int);
2086 bool gfc_check_access (gfc_access, gfc_access);
2089 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2090 symbol_attribute gfc_expr_attr (gfc_expr *);
2093 void gfc_generate_code (gfc_namespace *);
2094 void gfc_generate_module_code (gfc_namespace *);
2097 typedef int (*compare_fn) (void *, void *);
2098 void gfc_insert_bbt (void *, void *, compare_fn);
2099 void gfc_delete_bbt (void *, void *, compare_fn);
2101 /* dump-parse-tree.c */
2102 void gfc_show_namespace (gfc_namespace *);
2105 try gfc_parse_file (void);
2106 void global_used (gfc_gsymbol *, locus *);
2109 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2111 #endif /* GCC_GFORTRAN_H */