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). */
338 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
348 GFC_ISYM_DOT_PRODUCT,
436 GFC_ISYM_SET_EXPONENT,
468 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
470 /************************* Structures *****************************/
472 /* Used for keeping things in balanced binary trees. */
473 #define BBT_HEADER(self) int priority; struct self *left, *right
475 /* Symbol attribute structure. */
478 /* Variable attributes. */
479 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
480 optional:1, pointer:1, save:1, target:1,
481 dummy:1, result:1, assign:1, threadprivate:1;
483 unsigned data:1, /* Symbol is named in a DATA statement. */
484 use_assoc:1; /* Symbol has been use-associated. */
486 unsigned in_namelist:1, in_common:1, in_equivalence:1;
487 unsigned function:1, subroutine:1, generic:1;
488 unsigned implicit_type:1; /* Type defined via implicit rules. */
489 unsigned untyped:1; /* No implicit type could be found. */
491 /* Function/subroutine attributes */
492 unsigned sequence:1, elemental:1, pure:1, recursive:1;
493 unsigned unmaskable:1, masked:1, contained:1;
495 /* This is set if the subroutine doesn't return. Currently, this
496 is only possible for intrinsic subroutines. */
499 /* Set if this procedure is an alternate entry point. These procedures
500 don't have any code associated, and the backend will turn them into
501 thunks to the master function. */
504 /* Set if this is the master function for a procedure with multiple
506 unsigned entry_master:1;
508 /* Set if this is the master function for a function with multiple
509 entry points where characteristics of the entry points differ. */
510 unsigned mixed_entry_master:1;
512 /* Set if a function must always be referenced by an explicit interface. */
513 unsigned always_explicit:1;
515 /* Set if the symbol has been referenced in an expression. No further
516 modification of type or type parameters is permitted. */
517 unsigned referenced:1;
519 /* Set if the is the symbol for the main program. This is the least
520 cumbersome way to communicate this function property without
521 strcmp'ing with __MAIN everywhere. */
522 unsigned is_main_program:1;
524 /* Mutually exclusive multibit attributes. */
525 ENUM_BITFIELD (gfc_access) access:2;
526 ENUM_BITFIELD (sym_intent) intent:2;
527 ENUM_BITFIELD (sym_flavor) flavor:4;
528 ENUM_BITFIELD (ifsrc) if_source:2;
530 ENUM_BITFIELD (procedure_type) proc:3;
532 /* Special attributes for Cray pointers, pointees. */
533 unsigned cray_pointer:1, cray_pointee:1;
539 /* The following three structures are used to identify a location in
542 gfc_file is used to maintain a tree of the source files and how
543 they include each other
545 gfc_linebuf holds a single line of source code and information
546 which file it resides in
548 locus point to the sourceline and the character in the source
552 typedef struct gfc_file
554 struct gfc_file *included_by, *next, *up;
555 int inclusion_line, line;
559 typedef struct gfc_linebuf
561 #ifdef USE_MAPPED_LOCATION
562 source_location location;
566 struct gfc_file *file;
567 struct gfc_linebuf *next;
574 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
582 /* In order for the "gfc" format checking to work correctly, you must
583 have declared a typedef locus first. */
584 #if GCC_VERSION >= 4001
585 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
587 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
591 extern int gfc_suppress_error;
594 /* Character length structures hold the expression that gives the
595 length of a character variable. We avoid putting these into
596 gfc_typespec because doing so prevents us from doing structure
597 copies and forces us to deallocate any typespecs we create, as well
598 as structures that contain typespecs. They also can have multiple
599 character typespecs pointing to them.
601 These structures form a singly linked list within the current
602 namespace and are deallocated with the namespace. It is possible to
603 end up with gfc_charlen structures that have nothing pointing to them. */
605 typedef struct gfc_charlen
607 struct gfc_expr *length;
608 struct gfc_charlen *next;
615 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
617 /* Type specification structure. FIXME: derived and cl could be union??? */
622 struct gfc_symbol *derived;
623 gfc_charlen *cl; /* For character types only. */
627 /* Array specification. */
630 int rank; /* A rank of zero means that a variable is a scalar. */
632 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
634 /* These two fields are used with the Cray Pointer extension. */
635 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
636 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
637 AS_EXPLICIT, but we want to remember that we
643 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
646 /* Components of derived types. */
647 typedef struct gfc_component
652 int pointer, dimension;
657 struct gfc_expr *initializer;
658 struct gfc_component *next;
662 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
664 /* Formal argument lists are lists of symbols. */
665 typedef struct gfc_formal_arglist
667 /* Symbol representing the argument at this position in the arglist. */
668 struct gfc_symbol *sym;
669 /* Points to the next formal argument. */
670 struct gfc_formal_arglist *next;
674 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
677 /* The gfc_actual_arglist structure is for actual arguments. */
678 typedef struct gfc_actual_arglist
681 /* Alternate return label when the expr member is null. */
682 struct gfc_st_label *label;
684 /* This is set to the type of an eventual omitted optional
685 argument. This is used to determine if a hidden string length
686 argument has to be added to a function call. */
689 struct gfc_expr *expr;
690 struct gfc_actual_arglist *next;
694 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
697 /* Because a symbol can belong to multiple namelists, they must be
698 linked externally to the symbol itself. */
699 typedef struct gfc_namelist
701 struct gfc_symbol *sym;
702 struct gfc_namelist *next;
706 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
711 OMP_LIST_FIRSTPRIVATE,
712 OMP_LIST_LASTPRIVATE,
713 OMP_LIST_COPYPRIVATE,
717 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
729 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
733 /* Because a symbol can belong to multiple namelists, they must be
734 linked externally to the symbol itself. */
735 typedef struct gfc_omp_clauses
737 struct gfc_expr *if_expr;
738 struct gfc_expr *num_threads;
739 gfc_namelist *lists[OMP_LIST_NUM];
748 struct gfc_expr *chunk_size;
756 bool nowait, ordered;
760 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
763 /* The gfc_st_label structure is a doubly linked list attached to a
764 namespace that records the usage of statement labels within that
766 /* TODO: Make format/statement specifics a union. */
767 typedef struct gfc_st_label
769 BBT_HEADER(gfc_st_label);
773 gfc_sl_type defined, referenced;
775 struct gfc_expr *format;
784 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
785 typedef struct gfc_interface
787 struct gfc_symbol *sym;
789 struct gfc_interface *next;
793 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
796 /* User operator nodes. These are like stripped down symbols. */
801 gfc_interface *operator;
802 struct gfc_namespace *ns;
807 /* Symbol nodes. These are important things. They are what the
808 standard refers to as "entities". The possibly multiple names that
809 refer to the same entity are accomplished by a binary tree of
810 symtree structures that is balanced by the red-black method-- more
811 than one symtree node can point to any given symbol. */
813 typedef struct gfc_symbol
815 const char *name; /* Primary name, before renaming */
816 const char *module; /* Module this symbol came from */
820 symbol_attribute attr;
822 /* The interface member points to the formal argument list if the
823 symbol is a function or subroutine name. If the symbol is a
824 generic name, the generic member points to the list of
827 gfc_interface *generic;
828 gfc_access component_access;
830 gfc_formal_arglist *formal;
831 struct gfc_namespace *formal_ns;
833 struct gfc_expr *value; /* Parameter/Initializer value */
835 struct gfc_symbol *result; /* function result symbol */
836 gfc_component *components; /* Derived type components */
838 /* Defined only for Cray pointees; points to their pointer. */
839 struct gfc_symbol *cp_pointer;
841 struct gfc_symbol *common_next; /* Links for COMMON syms */
843 /* This is in fact a gfc_common_head but it is only used for pointer
844 comparisons to check if symbols are in the same common block. */
845 struct gfc_common_head* common_head;
847 /* Make sure setup code for dummy arguments is generated in the correct
853 gfc_namelist *namelist, *namelist_tail;
855 /* Change management fields. Symbols that might be modified by the
856 current statement have the mark member nonzero and are kept in a
857 singly linked list through the tlink field. Of these symbols,
858 symbols with old_symbol equal to NULL are symbols created within
859 the current statement. Otherwise, old_symbol points to a copy of
862 struct gfc_symbol *old_symbol, *tlink;
863 unsigned mark:1, new:1;
864 /* Nonzero if all equivalences associated with this symbol have been
866 unsigned equiv_built:1;
867 /* Set if this variable is used as an index name in a FORALL. */
868 unsigned forall_index:1;
870 struct gfc_namespace *ns; /* namespace containing this symbol */
877 /* This structure is used to keep track of symbols in common blocks. */
879 typedef struct gfc_common_head
882 char use_assoc, saved, threadprivate;
883 char name[GFC_MAX_SYMBOL_LEN + 1];
884 struct gfc_symbol *head;
888 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
891 /* A list of all the alternate entry points for a procedure. */
893 typedef struct gfc_entry_list
895 /* The symbol for this entry point. */
897 /* The zero-based id of this entry point. */
899 /* The LABEL_EXPR marking this entry point. */
901 /* The nest item in the list. */
902 struct gfc_entry_list *next;
906 #define gfc_get_entry_list() \
907 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
909 /* Within a namespace, symbols are pointed to by symtree nodes that
910 are linked together in a balanced binary tree. There can be
911 several symtrees pointing to the same symbol node via USE
914 typedef struct gfc_symtree
916 BBT_HEADER (gfc_symtree);
921 gfc_symbol *sym; /* Symbol associated with this node */
923 gfc_common_head *common;
930 /* A namespace describes the contents of procedure, module or
932 /* ??? Anything else use these? */
934 typedef struct gfc_namespace
936 /* Tree containing all the symbols in this namespace. */
937 gfc_symtree *sym_root;
938 /* Tree containing all the user-defined operators in the namespace. */
939 gfc_symtree *uop_root;
940 /* Tree containing all the common blocks. */
941 gfc_symtree *common_root;
943 /* If set_flag[letter] is set, an implicit type has been set for letter. */
944 int set_flag[GFC_LETTERS];
945 /* Keeps track of the implicit types associated with the letters. */
946 gfc_typespec default_type[GFC_LETTERS];
948 /* If this is a namespace of a procedure, this points to the procedure. */
949 struct gfc_symbol *proc_name;
950 /* If this is the namespace of a unit which contains executable
951 code, this points to it. */
952 struct gfc_code *code;
954 /* Points to the equivalences set up in this namespace. */
955 struct gfc_equiv *equiv;
957 /* Points to the equivalence groups produced by trans_common. */
958 struct gfc_equiv_list *equiv_lists;
960 gfc_interface *operator[GFC_INTRINSIC_OPS];
962 /* Points to the parent namespace, i.e. the namespace of a module or
963 procedure in which the procedure belonging to this namespace is
964 contained. The parent namespace points to this namespace either
965 directly via CONTAINED, or indirectly via the chain built by
967 struct gfc_namespace *parent;
968 /* CONTAINED points to the first contained namespace. Sibling
969 namespaces are chained via SIBLING. */
970 struct gfc_namespace *contained, *sibling;
972 gfc_common_head blank_common;
973 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
975 gfc_st_label *st_labels;
976 /* This list holds information about all the data initializers in
978 struct gfc_data *data;
980 gfc_charlen *cl_list;
982 int save_all, seen_save, seen_implicit_none;
984 /* Normally we don't need to refcount namespaces. However when we read
985 a module containing a function with multiple entry points, this
986 will appear as several functions with the same formal namespace. */
989 /* A list of all alternate entry points to this procedure (or NULL). */
990 gfc_entry_list *entries;
992 /* Set to 1 if namespace is a BLOCK DATA program unit. */
997 extern gfc_namespace *gfc_current_ns;
999 /* Global symbols are symbols of global scope. Currently we only use
1000 this to detect collisions already when parsing.
1001 TODO: Extend to verify procedure calls. */
1003 typedef struct gfc_gsymbol
1005 BBT_HEADER(gfc_gsymbol);
1008 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1009 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1016 extern gfc_gsymbol *gfc_gsym_root;
1018 /* Information on interfaces being built. */
1021 interface_type type;
1025 gfc_intrinsic_op op;
1029 extern gfc_interface_info current_interface;
1032 /* Array reference. */
1033 typedef struct gfc_array_ref
1036 int dimen; /* # of components in the reference */
1040 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1041 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1042 *stride[GFC_MAX_DIMENSIONS];
1045 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1046 dimen_type[GFC_MAX_DIMENSIONS];
1048 struct gfc_expr *offset;
1052 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1055 /* Component reference nodes. A variable is stored as an expression
1056 node that points to the base symbol. After that, a singly linked
1057 list of component reference nodes gives the variable's complete
1058 resolution. The array_ref component may be present and comes
1059 before the component component. */
1062 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1065 typedef struct gfc_ref
1071 struct gfc_array_ref ar;
1075 gfc_component *component;
1082 struct gfc_expr *start, *end; /* Substring */
1083 gfc_charlen *length;
1090 struct gfc_ref *next;
1094 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1097 /* Structures representing intrinsic symbols and their arguments lists. */
1098 typedef struct gfc_intrinsic_arg
1100 char name[GFC_MAX_SYMBOL_LEN + 1];
1104 gfc_actual_arglist *actual;
1106 struct gfc_intrinsic_arg *next;
1112 /* Specifies the various kinds of check functions used to verify the
1113 argument lists of intrinsic functions. fX with X an integer refer
1114 to check functions of intrinsics with X arguments. f1m is used for
1115 the MAX and MIN intrinsics which can have an arbitrary number of
1116 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1117 these have special semantics. */
1122 try (*f1)(struct gfc_expr *);
1123 try (*f1m)(gfc_actual_arglist *);
1124 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1125 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1126 try (*f3ml)(gfc_actual_arglist *);
1127 try (*f3red)(gfc_actual_arglist *);
1128 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1130 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1131 struct gfc_expr *, struct gfc_expr *);
1135 /* Like gfc_check_f, these specify the type of the simplification
1136 function associated with an intrinsic. The fX are just like in
1137 gfc_check_f. cc is used for type conversion functions. */
1141 struct gfc_expr *(*f0)(void);
1142 struct gfc_expr *(*f1)(struct gfc_expr *);
1143 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1144 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1146 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1147 struct gfc_expr *, struct gfc_expr *);
1148 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1149 struct gfc_expr *, struct gfc_expr *,
1151 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1155 /* Again like gfc_check_f, these specify the type of the resolution
1156 function associated with an intrinsic. The fX are just like in
1157 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1162 void (*f0)(struct gfc_expr *);
1163 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1164 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1165 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1166 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1168 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1169 struct gfc_expr *, struct gfc_expr *);
1170 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1171 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1172 void (*s1)(struct gfc_code *);
1177 typedef struct gfc_intrinsic_sym
1179 const char *name, *lib_name;
1180 gfc_intrinsic_arg *formal;
1182 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1184 gfc_simplify_f simplify;
1186 gfc_resolve_f resolve;
1187 struct gfc_intrinsic_sym *specific_head, *next;
1188 gfc_generic_isym_id generic_id;
1194 /* Expression nodes. The expression node types deserve explanations,
1195 since the last couple can be easily misconstrued:
1197 EXPR_OP Operator node pointing to one or two other nodes
1198 EXPR_FUNCTION Function call, symbol points to function's name
1199 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1200 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1201 which expresses structure, array and substring refs.
1202 EXPR_NULL The NULL pointer value (which also has a basic type).
1203 EXPR_SUBSTRING A substring of a constant string
1204 EXPR_STRUCTURE A structure constructor
1205 EXPR_ARRAY An array constructor. */
1209 #define GFC_RND_MODE GMP_RNDN
1211 typedef struct gfc_expr
1215 gfc_typespec ts; /* These two refer to the overall expression */
1218 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1220 /* Nonnull for functions and structure constructors */
1221 gfc_symtree *symtree;
1227 /* True if it is converted from Hollerith constant. */
1228 unsigned int from_H : 1;
1229 /* True if the expression is a call to a function that returns an array,
1230 and if we have decided not to allocate temporary data for that array. */
1231 unsigned int inline_noncopying_intrinsic : 1;
1248 gfc_intrinsic_op operator;
1250 struct gfc_expr *op1, *op2;
1256 gfc_actual_arglist *actual;
1257 const char *name; /* Points to the ultimate name of the function */
1258 gfc_intrinsic_sym *isym;
1270 struct gfc_constructor *constructor;
1278 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1280 /* Structures for information associated with different kinds of
1281 numbers. The first set of integer parameters define all there is
1282 to know about a particular kind. The rest of the elements are
1283 computed from the first elements. */
1287 /* Values really representable by the target. */
1288 mpz_t huge, pedantic_min_int, min_int, max_int;
1290 int kind, radix, digits, bit_size, range;
1292 /* True if the C type of the given name maps to this precision.
1293 Note that more than one bit can be set. */
1294 unsigned int c_char : 1;
1295 unsigned int c_short : 1;
1296 unsigned int c_int : 1;
1297 unsigned int c_long : 1;
1298 unsigned int c_long_long : 1;
1302 extern gfc_integer_info gfc_integer_kinds[];
1309 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1310 unsigned int c_bool : 1;
1314 extern gfc_logical_info gfc_logical_kinds[];
1319 mpfr_t epsilon, huge, tiny, subnormal;
1320 int kind, radix, digits, min_exponent, max_exponent;
1321 int range, precision;
1323 /* The precision of the type as reported by GET_MODE_PRECISION. */
1326 /* True if the C type of the given name maps to this precision.
1327 Note that more than one bit can be set. */
1328 unsigned int c_float : 1;
1329 unsigned int c_double : 1;
1330 unsigned int c_long_double : 1;
1334 extern gfc_real_info gfc_real_kinds[];
1337 /* Equivalence structures. Equivalent lvalues are linked along the
1338 *eq pointer, equivalence sets are strung along the *next node. */
1339 typedef struct gfc_equiv
1341 struct gfc_equiv *next, *eq;
1348 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1350 /* Holds a single equivalence member after processing. */
1351 typedef struct gfc_equiv_info
1354 HOST_WIDE_INT offset;
1355 HOST_WIDE_INT length;
1356 struct gfc_equiv_info *next;
1359 /* Holds equivalence groups, after they have been processed. */
1360 typedef struct gfc_equiv_list
1362 gfc_equiv_info *equiv;
1363 struct gfc_equiv_list *next;
1366 /* gfc_case stores the selector list of a case statement. The *low
1367 and *high pointers can point to the same expression in the case of
1368 a single value. If *high is NULL, the selection is from *low
1369 upwards, if *low is NULL the selection is *high downwards.
1371 This structure has separate fields to allow single and double linked
1372 lists of CASEs at the same time. The singe linked list along the NEXT
1373 field is a list of cases for a single CASE label. The double linked
1374 list along the LEFT/RIGHT fields is used to detect overlap and to
1375 build a table of the cases for SELECT constructs with a CHARACTER
1378 typedef struct gfc_case
1380 /* Where we saw this case. */
1384 /* Case range values. If (low == high), it's a single value. If one of
1385 the labels is NULL, it's an unbounded case. If both are NULL, this
1386 represents the default case. */
1387 gfc_expr *low, *high;
1389 /* Next case label in the list of cases for a single CASE label. */
1390 struct gfc_case *next;
1392 /* Used for detecting overlap, and for code generation. */
1393 struct gfc_case *left, *right;
1395 /* True if this case label can never be matched. */
1400 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1405 gfc_expr *var, *start, *end, *step;
1409 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1412 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1414 typedef struct gfc_alloc
1417 struct gfc_alloc *next;
1421 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1426 gfc_expr *unit, *file, *status, *access, *form, *recl,
1427 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1435 gfc_expr *unit, *status, *iostat, *iomsg;
1443 gfc_expr *unit, *iostat, *iomsg;
1451 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1452 *name, *access, *sequential, *direct, *form, *formatted,
1453 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1454 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1464 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1466 gfc_symbol *namelist;
1467 /* A format_label of `format_asterisk' indicates the "*" format */
1468 gfc_st_label *format_label;
1469 gfc_st_label *err, *end, *eor;
1471 locus eor_where, end_where, err_where;
1476 typedef struct gfc_forall_iterator
1478 gfc_expr *var, *start, *end, *stride;
1479 struct gfc_forall_iterator *next;
1481 gfc_forall_iterator;
1484 /* Executable statements that fill gfc_code structures. */
1487 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1488 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1489 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE,
1490 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1491 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1492 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1493 EXEC_OPEN, EXEC_CLOSE,
1494 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1495 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1496 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1497 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1498 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1499 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1500 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1505 typedef struct gfc_code
1509 struct gfc_code *block, *next;
1512 gfc_st_label *here, *label, *label2, *label3;
1513 gfc_symtree *symtree;
1514 gfc_expr *expr, *expr2;
1515 /* A name isn't sufficient to identify a subroutine, we need the actual
1516 symbol for the interface definition.
1517 const char *sub_name; */
1518 gfc_symbol *resolved_sym;
1522 gfc_actual_arglist *actual;
1523 gfc_case *case_list;
1524 gfc_iterator *iterator;
1525 gfc_alloc *alloc_list;
1528 gfc_filepos *filepos;
1529 gfc_inquire *inquire;
1531 gfc_forall_iterator *forall_iterator;
1532 struct gfc_code *whichloop;
1534 gfc_entry_list *entry;
1535 gfc_omp_clauses *omp_clauses;
1536 const char *omp_name;
1537 gfc_namelist *omp_namelist;
1540 ext; /* Points to additional structures required by statement */
1542 /* Backend_decl is used for cycle and break labels in do loops, and
1543 probably for other constructs as well, once we translate them. */
1549 /* Storage for DATA statements. */
1550 typedef struct gfc_data_variable
1554 struct gfc_data_variable *list, *next;
1559 typedef struct gfc_data_value
1561 unsigned int repeat;
1563 struct gfc_data_value *next;
1568 typedef struct gfc_data
1570 gfc_data_variable *var;
1571 gfc_data_value *value;
1574 struct gfc_data *next;
1578 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1579 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1580 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1583 /* Structure for holding compile options */
1587 gfc_source_form source_form;
1588 /* When fixed_line_length or free_line_length are 0, the whole line is used.
1590 Default is -1, the maximum line length mandated by the respective source
1592 for FORM_FREE GFC_MAX_LINE (132)
1595 If fixed_line_length or free_line_length is not 0 nor -1 then the user has
1596 requested a specific line-length.
1598 If the user requests a fixed_line_length <7 then gfc_init_options()
1599 emits a fatal error. */
1600 int fixed_line_length; /* maximum line length in fixed-form. */
1601 int free_line_length; /* maximum line length in free-form. */
1602 int max_identifier_length;
1607 int warn_conversion;
1608 int warn_implicit_interface;
1609 int warn_line_truncation;
1610 int warn_surprising;
1613 int warn_unused_labels;
1615 int flag_all_intrinsics;
1616 int flag_default_double;
1617 int flag_default_integer;
1618 int flag_default_real;
1620 int flag_underscoring;
1621 int flag_second_underscore;
1622 int flag_implicit_none;
1623 int flag_max_stack_var_size;
1624 int flag_module_access_private;
1625 int flag_no_backend;
1626 int flag_range_check;
1627 int flag_pack_derived;
1628 int flag_repack_arrays;
1629 int flag_preprocessed;
1633 int flag_cray_pointer;
1643 int warn_nonstd_intrinsics;
1650 extern gfc_option_t gfc_option;
1653 /* Constructor nodes for array and structure constructors. */
1654 typedef struct gfc_constructor
1657 gfc_iterator *iterator;
1659 struct gfc_constructor *next;
1662 mpz_t offset; /* Record the offset of array element which appears in
1663 data statement like "data a(5)/4/". */
1664 gfc_component *component; /* Record the component being initialized. */
1667 mpz_t repeat; /* Record the repeat number of initial values in data
1668 statement like "data a/5*10/". */
1673 typedef struct iterator_stack
1675 gfc_symtree *variable;
1677 struct iterator_stack *prev;
1680 extern iterator_stack *iter_stack;
1682 /************************ Function prototypes *************************/
1685 void gfc_formalize_init_value (gfc_symbol *);
1686 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1687 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1688 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1689 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1692 void gfc_scanner_done_1 (void);
1693 void gfc_scanner_init_1 (void);
1695 void gfc_add_include_path (const char *);
1696 void gfc_release_include_path (void);
1697 FILE *gfc_open_included_file (const char *, bool);
1699 int gfc_at_end (void);
1700 int gfc_at_eof (void);
1701 int gfc_at_bol (void);
1702 int gfc_at_eol (void);
1703 void gfc_advance_line (void);
1704 int gfc_check_include (void);
1706 void gfc_skip_comments (void);
1707 int gfc_next_char_literal (int);
1708 int gfc_next_char (void);
1709 int gfc_peek_char (void);
1710 void gfc_error_recovery (void);
1711 void gfc_gobble_whitespace (void);
1712 try gfc_new_file (void);
1713 const char * gfc_read_orig_filename (const char *, const char **);
1715 extern gfc_source_form gfc_current_form;
1716 extern const char *gfc_source_file;
1717 extern locus gfc_current_locus;
1720 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1721 void gfc_free (void *);
1722 int gfc_terminal_width(void);
1723 void gfc_clear_ts (gfc_typespec *);
1724 FILE *gfc_open_file (const char *);
1725 const char *gfc_basic_typename (bt);
1726 const char *gfc_typename (gfc_typespec *);
1728 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1729 "=" : gfc_code2string (intrinsic_operators, OP))
1731 const char *gfc_code2string (const mstring *, int);
1732 int gfc_string2code (const mstring *, const char *);
1733 const char *gfc_intent_string (sym_intent);
1735 void gfc_init_1 (void);
1736 void gfc_init_2 (void);
1737 void gfc_done_1 (void);
1738 void gfc_done_2 (void);
1741 unsigned int gfc_init_options (unsigned int, const char **);
1742 int gfc_handle_option (size_t, const char *, int);
1743 bool gfc_post_options (const char **);
1746 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1750 typedef struct gfc_error_buf
1753 size_t allocated, index;
1757 void gfc_error_init_1 (void);
1758 void gfc_buffer_error (int);
1760 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1761 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1762 void gfc_clear_warning (void);
1763 void gfc_warning_check (void);
1765 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1766 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1767 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1768 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1769 void gfc_clear_error (void);
1770 int gfc_error_check (void);
1772 notification gfc_notification_std (int);
1773 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1775 /* A general purpose syntax error. */
1776 #define gfc_syntax_error(ST) \
1777 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1779 void gfc_push_error (gfc_error_buf *);
1780 void gfc_pop_error (gfc_error_buf *);
1781 void gfc_free_error (gfc_error_buf *);
1783 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1784 void gfc_status_char (char);
1786 void gfc_get_errors (int *, int *);
1789 void gfc_arith_init_1 (void);
1790 void gfc_arith_done_1 (void);
1791 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1792 arith gfc_check_integer_range (mpz_t p, int kind);
1795 int gfc_validate_kind (bt, int, bool);
1796 extern int gfc_index_integer_kind;
1797 extern int gfc_default_integer_kind;
1798 extern int gfc_max_integer_kind;
1799 extern int gfc_default_real_kind;
1800 extern int gfc_default_double_kind;
1801 extern int gfc_default_character_kind;
1802 extern int gfc_default_logical_kind;
1803 extern int gfc_default_complex_kind;
1804 extern int gfc_c_int_kind;
1805 extern int gfc_intio_kind;
1808 void gfc_clear_new_implicit (void);
1809 try gfc_add_new_implicit_range (int, int);
1810 try gfc_merge_new_implicit (gfc_typespec *);
1811 void gfc_set_implicit_none (void);
1813 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1814 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1816 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1817 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1819 void gfc_set_sym_referenced (gfc_symbol * sym);
1821 try gfc_add_attribute (symbol_attribute *, locus *, unsigned int);
1822 try gfc_add_allocatable (symbol_attribute *, locus *);
1823 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1824 try gfc_add_external (symbol_attribute *, locus *);
1825 try gfc_add_intrinsic (symbol_attribute *, locus *);
1826 try gfc_add_optional (symbol_attribute *, locus *);
1827 try gfc_add_pointer (symbol_attribute *, locus *);
1828 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1829 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1830 try gfc_mod_pointee_as (gfc_array_spec *as);
1831 try gfc_add_result (symbol_attribute *, const char *, locus *);
1832 try gfc_add_save (symbol_attribute *, const char *, locus *);
1833 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
1834 try gfc_add_saved_common (symbol_attribute *, locus *);
1835 try gfc_add_target (symbol_attribute *, locus *);
1836 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1837 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1838 try gfc_add_common (symbol_attribute *, locus *);
1839 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1840 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1841 try gfc_add_data (symbol_attribute *, const char *, locus *);
1842 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1843 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1844 try gfc_add_elemental (symbol_attribute *, locus *);
1845 try gfc_add_pure (symbol_attribute *, locus *);
1846 try gfc_add_recursive (symbol_attribute *, locus *);
1847 try gfc_add_function (symbol_attribute *, const char *, locus *);
1848 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1850 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1851 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1852 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1853 try gfc_add_procedure (symbol_attribute *, procedure_type,
1854 const char *, locus *);
1855 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1856 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1857 gfc_formal_arglist *, locus *);
1858 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1860 void gfc_clear_attr (symbol_attribute *);
1861 try gfc_missing_attr (symbol_attribute *, locus *);
1862 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1864 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1865 gfc_symbol *gfc_use_derived (gfc_symbol *);
1866 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1867 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1869 gfc_st_label *gfc_get_st_label (int);
1870 void gfc_free_st_label (gfc_st_label *);
1871 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1872 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1874 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1875 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1876 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1877 gfc_user_op *gfc_get_uop (const char *);
1878 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1879 void gfc_free_symbol (gfc_symbol *);
1880 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1881 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1882 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1883 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1884 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1885 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1886 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1888 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1890 void gfc_undo_symbols (void);
1891 void gfc_commit_symbols (void);
1892 void gfc_commit_symbol (gfc_symbol * sym);
1893 void gfc_free_namespace (gfc_namespace *);
1895 void gfc_symbol_init_2 (void);
1896 void gfc_symbol_done_2 (void);
1898 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1899 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1900 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1901 void gfc_save_all (gfc_namespace *);
1903 void gfc_symbol_state (void);
1905 gfc_gsymbol *gfc_get_gsymbol (const char *);
1906 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1909 extern int gfc_init_expr;
1911 /* Given a symbol that we have decided is intrinsic, mark it as such
1912 by placing it into a special module that is otherwise impossible to
1915 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1917 void gfc_intrinsic_init_1 (void);
1918 void gfc_intrinsic_done_1 (void);
1920 char gfc_type_letter (bt);
1921 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1922 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1923 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1924 int gfc_generic_intrinsic (const char *);
1925 int gfc_specific_intrinsic (const char *);
1926 int gfc_intrinsic_name (const char *, int);
1927 gfc_intrinsic_sym *gfc_find_function (const char *);
1929 match gfc_intrinsic_func_interface (gfc_expr *, int);
1930 match gfc_intrinsic_sub_interface (gfc_code *, int);
1933 void gfc_simplify_init_1 (void);
1935 /* match.c -- FIXME */
1936 void gfc_free_iterator (gfc_iterator *, int);
1937 void gfc_free_forall_iterator (gfc_forall_iterator *);
1938 void gfc_free_alloc_list (gfc_alloc *);
1939 void gfc_free_namelist (gfc_namelist *);
1940 void gfc_free_equiv (gfc_equiv *);
1941 void gfc_free_data (gfc_data *);
1942 void gfc_free_case_list (gfc_case *);
1944 /* matchexp.c -- FIXME too? */
1945 gfc_expr *gfc_get_parentheses (gfc_expr *);
1948 void gfc_free_omp_clauses (gfc_omp_clauses *);
1949 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
1950 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
1951 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
1952 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
1955 void gfc_free_actual_arglist (gfc_actual_arglist *);
1956 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1957 const char *gfc_extract_int (gfc_expr *, int *);
1959 gfc_expr *gfc_build_conversion (gfc_expr *);
1960 void gfc_free_ref_list (gfc_ref *);
1961 void gfc_type_convert_binary (gfc_expr *);
1962 int gfc_is_constant_expr (gfc_expr *);
1963 try gfc_simplify_expr (gfc_expr *, int);
1964 int gfc_has_vector_index (gfc_expr *);
1966 gfc_expr *gfc_get_expr (void);
1967 void gfc_free_expr (gfc_expr *);
1968 void gfc_replace_expr (gfc_expr *, gfc_expr *);
1969 gfc_expr *gfc_int_expr (int);
1970 gfc_expr *gfc_logical_expr (int, locus *);
1971 mpz_t *gfc_copy_shape (mpz_t *, int);
1972 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
1973 gfc_expr *gfc_copy_expr (gfc_expr *);
1975 try gfc_specification_expr (gfc_expr *);
1977 int gfc_numeric_ts (gfc_typespec *);
1978 int gfc_kind_max (gfc_expr *, gfc_expr *);
1980 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
1981 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
1982 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
1983 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
1985 gfc_expr *gfc_default_initializer (gfc_typespec *);
1986 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
1988 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
1991 extern gfc_code new_st;
1993 void gfc_clear_new_st (void);
1994 gfc_code *gfc_get_code (void);
1995 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
1996 void gfc_free_statement (gfc_code *);
1997 void gfc_free_statements (gfc_code *);
2000 try gfc_resolve_expr (gfc_expr *);
2001 void gfc_resolve (gfc_namespace *);
2002 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2003 int gfc_impure_variable (gfc_symbol *);
2004 int gfc_pure (gfc_symbol *);
2005 int gfc_elemental (gfc_symbol *);
2006 try gfc_resolve_iterator (gfc_iterator *, bool);
2007 try gfc_resolve_index (gfc_expr *, int);
2008 try gfc_resolve_dim_arg (gfc_expr *);
2009 int gfc_is_formal_arg (void);
2012 void gfc_free_array_spec (gfc_array_spec *);
2013 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2015 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2016 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2017 try gfc_resolve_array_spec (gfc_array_spec *, int);
2019 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2021 gfc_expr *gfc_start_constructor (bt, int, locus *);
2022 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2023 void gfc_free_constructor (gfc_constructor *);
2024 void gfc_simplify_iterator_var (gfc_expr *);
2025 try gfc_expand_constructor (gfc_expr *);
2026 int gfc_constant_ac (gfc_expr *);
2027 int gfc_expanded_ac (gfc_expr *);
2028 void gfc_resolve_character_array_constructor (gfc_expr *);
2029 try gfc_resolve_array_constructor (gfc_expr *);
2030 try gfc_check_constructor_type (gfc_expr *);
2031 try gfc_check_iter_variable (gfc_expr *);
2032 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2033 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
2034 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2035 try gfc_array_size (gfc_expr *, mpz_t *);
2036 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2037 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2038 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2039 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2040 gfc_constructor *gfc_get_constructor (void);
2041 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
2042 try spec_size (gfc_array_spec *, mpz_t *);
2043 int gfc_is_compile_time_shape (gfc_array_spec *);
2045 /* interface.c -- FIXME: some of these should be in symbol.c */
2046 void gfc_free_interface (gfc_interface *);
2047 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2048 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2049 void gfc_check_interfaces (gfc_namespace *);
2050 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2051 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2052 gfc_actual_arglist **);
2053 try gfc_extend_expr (gfc_expr *);
2054 void gfc_free_formal_arglist (gfc_formal_arglist *);
2055 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2056 try gfc_add_interface (gfc_symbol * sym);
2059 extern gfc_st_label format_asterisk;
2061 void gfc_free_open (gfc_open *);
2062 try gfc_resolve_open (gfc_open *);
2063 void gfc_free_close (gfc_close *);
2064 try gfc_resolve_close (gfc_close *);
2065 void gfc_free_filepos (gfc_filepos *);
2066 try gfc_resolve_filepos (gfc_filepos *);
2067 void gfc_free_inquire (gfc_inquire *);
2068 try gfc_resolve_inquire (gfc_inquire *);
2069 void gfc_free_dt (gfc_dt *);
2070 try gfc_resolve_dt (gfc_dt *);
2073 void gfc_module_init_2 (void);
2074 void gfc_module_done_2 (void);
2075 void gfc_dump_module (const char *, int);
2076 bool gfc_check_access (gfc_access, gfc_access);
2079 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2080 symbol_attribute gfc_expr_attr (gfc_expr *);
2083 void gfc_generate_code (gfc_namespace *);
2084 void gfc_generate_module_code (gfc_namespace *);
2087 typedef int (*compare_fn) (void *, void *);
2088 void gfc_insert_bbt (void *, void *, compare_fn);
2089 void gfc_delete_bbt (void *, void *, compare_fn);
2091 /* dump-parse-tree.c */
2092 void gfc_show_namespace (gfc_namespace *);
2095 try gfc_parse_file (void);
2096 void global_used (gfc_gsymbol *, locus *);
2099 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2101 #endif /* GCC_GFORTRAN_H */