1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
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 /* Matchers return one of these three values. The difference between
133 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
134 successful, but that something non-syntactic is wrong and an error
135 has already been issued. */
138 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
142 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
146 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
147 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH
151 /* Expression node types. */
153 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
154 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
160 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
161 AS_ASSUMED_SIZE, AS_UNKNOWN
166 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
169 /* Statement label types. */
171 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
172 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
176 /* Intrinsic operators. */
178 { GFC_INTRINSIC_BEGIN = 0,
179 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
180 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
181 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
182 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
183 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
184 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
186 GFC_INTRINSIC_END /* Sentinel */
191 /* Strings for all intrinsic operators. */
192 extern mstring intrinsic_operators[];
195 /* This macro is the number of intrinsic operators that exist.
196 Assumptions are made about the numbering of the interface_op enums. */
197 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
199 /* Arithmetic results. */
201 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
202 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
209 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
210 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
211 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
212 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
213 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
214 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
215 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
216 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
217 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_INQUIRE, ST_INTERFACE,
218 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
219 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
220 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
221 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
222 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
223 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM, ST_NONE
228 /* Types of interfaces that we can have. Assignment interfaces are
229 considered to be intrinsic operators. */
232 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
233 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
237 /* Symbol flavors: these are all mutually exclusive.
238 10 elements = 4 bits. */
239 typedef enum sym_flavor
241 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
242 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST
246 /* Procedure types. 7 elements = 3 bits. */
247 typedef enum procedure_type
248 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
249 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
254 typedef enum sym_intent
255 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
260 typedef enum gfc_access
261 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
265 /* Flags to keep track of where an interface came from.
266 4 elements = 2 bits. */
268 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
272 /* Strings for all symbol attributes. We use these for dumping the
273 parse tree, in error messages, and also when reading and writing
274 modules. In symbol.c. */
275 extern const mstring flavors[];
276 extern const mstring procedures[];
277 extern const mstring intents[];
278 extern const mstring access_types[];
279 extern const mstring ifsrc_types[];
281 /* Enumeration of all the generic intrinsic functions. Used by the
282 backend for identification of a function. */
284 enum gfc_generic_isym_id
286 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
287 the backend (eg. KIND). */
319 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
329 GFC_ISYM_DOT_PRODUCT,
409 GFC_ISYM_SET_EXPONENT,
441 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
443 /************************* Structures *****************************/
445 /* Used for keeping things in balanced binary trees. */
446 #define BBT_HEADER(self) int priority; struct self *left, *right
448 /* Symbol attribute structure. */
451 /* Variable attributes. */
452 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
453 optional:1, pointer:1, save:1, target:1,
454 dummy:1, result:1, assign:1;
456 unsigned data:1, /* Symbol is named in a DATA statement. */
457 use_assoc:1; /* Symbol has been use-associated. */
459 unsigned in_namelist:1, in_common:1, in_equivalence:1;
460 unsigned function:1, subroutine:1, generic:1;
461 unsigned implicit_type:1; /* Type defined via implicit rules. */
462 unsigned untyped:1; /* No implicit type could be found. */
464 /* Function/subroutine attributes */
465 unsigned sequence:1, elemental:1, pure:1, recursive:1;
466 unsigned unmaskable:1, masked:1, contained:1;
468 /* This is set if the subroutine doesn't return. Currently, this
469 is only possible for intrinsic subroutines. */
472 /* Set if this procedure is an alternate entry point. These procedures
473 don't have any code associated, and the backend will turn them into
474 thunks to the master function. */
477 /* Set if this is the master function for a procedure with multiple
479 unsigned entry_master:1;
481 /* Set if this is the master function for a function with multiple
482 entry points where characteristics of the entry points differ. */
483 unsigned mixed_entry_master:1;
485 /* Set if a function must always be referenced by an explicit interface. */
486 unsigned always_explicit:1;
488 /* Set if the symbol has been referenced in an expression. No further
489 modification of type or type parameters is permitted. */
490 unsigned referenced:1;
492 /* Set if the is the symbol for the main program. This is the least
493 cumbersome way to communicate this function property without
494 strcmp'ing with __MAIN everywhere. */
495 unsigned is_main_program:1;
497 /* Mutually exclusive multibit attributes. */
498 ENUM_BITFIELD (gfc_access) access:2;
499 ENUM_BITFIELD (sym_intent) intent:2;
500 ENUM_BITFIELD (sym_flavor) flavor:4;
501 ENUM_BITFIELD (ifsrc) if_source:2;
503 ENUM_BITFIELD (procedure_type) proc:3;
505 /* Special attributes for Cray pointers, pointees. */
506 unsigned cray_pointer:1, cray_pointee:1;
512 /* The following three structures are used to identify a location in
515 gfc_file is used to maintain a tree of the source files and how
516 they include each other
518 gfc_linebuf holds a single line of source code and information
519 which file it resides in
521 locus point to the sourceline and the character in the source
525 typedef struct gfc_file
527 struct gfc_file *included_by, *next, *up;
528 int inclusion_line, line;
532 typedef struct gfc_linebuf
534 #ifdef USE_MAPPED_LOCATION
535 source_location location;
539 struct gfc_file *file;
540 struct gfc_linebuf *next;
547 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
555 /* In order for the "gfc" format checking to work correctly, you must
556 have declared a typedef locus first. */
557 #if GCC_VERSION >= 4001
558 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
560 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
564 extern int gfc_suppress_error;
567 /* Character length structures hold the expression that gives the
568 length of a character variable. We avoid putting these into
569 gfc_typespec because doing so prevents us from doing structure
570 copies and forces us to deallocate any typespecs we create, as well
571 as structures that contain typespecs. They also can have multiple
572 character typespecs pointing to them.
574 These structures form a singly linked list within the current
575 namespace and are deallocated with the namespace. It is possible to
576 end up with gfc_charlen structures that have nothing pointing to them. */
578 typedef struct gfc_charlen
580 struct gfc_expr *length;
581 struct gfc_charlen *next;
588 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
590 /* Type specification structure. FIXME: derived and cl could be union??? */
595 struct gfc_symbol *derived;
596 gfc_charlen *cl; /* For character types only. */
600 /* Array specification. */
603 int rank; /* A rank of zero means that a variable is a scalar. */
605 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
607 /* These two fields are used with the Cray Pointer extension. */
608 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
609 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
610 AS_EXPLICIT, but we want to remember that we
616 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
619 /* Components of derived types. */
620 typedef struct gfc_component
625 int pointer, dimension;
630 struct gfc_expr *initializer;
631 struct gfc_component *next;
635 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
637 /* Formal argument lists are lists of symbols. */
638 typedef struct gfc_formal_arglist
640 /* Symbol representing the argument at this position in the arglist. */
641 struct gfc_symbol *sym;
642 /* Points to the next formal argument. */
643 struct gfc_formal_arglist *next;
647 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
650 /* The gfc_actual_arglist structure is for actual arguments. */
651 typedef struct gfc_actual_arglist
654 /* Alternate return label when the expr member is null. */
655 struct gfc_st_label *label;
657 /* This is set to the type of an eventual omitted optional
658 argument. This is used to determine if a hidden string length
659 argument has to be added to a function call. */
662 struct gfc_expr *expr;
663 struct gfc_actual_arglist *next;
667 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
670 /* Because a symbol can belong to multiple namelists, they must be
671 linked externally to the symbol itself. */
672 typedef struct gfc_namelist
674 struct gfc_symbol *sym;
675 struct gfc_namelist *next;
679 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
682 /* The gfc_st_label structure is a doubly linked list attached to a
683 namespace that records the usage of statement labels within that
685 /* TODO: Make format/statement specifics a union. */
686 typedef struct gfc_st_label
688 BBT_HEADER(gfc_st_label);
692 gfc_sl_type defined, referenced;
694 struct gfc_expr *format;
703 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
704 typedef struct gfc_interface
706 struct gfc_symbol *sym;
708 struct gfc_interface *next;
712 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
715 /* User operator nodes. These are like stripped down symbols. */
720 gfc_interface *operator;
721 struct gfc_namespace *ns;
726 /* Symbol nodes. These are important things. They are what the
727 standard refers to as "entities". The possibly multiple names that
728 refer to the same entity are accomplished by a binary tree of
729 symtree structures that is balanced by the red-black method-- more
730 than one symtree node can point to any given symbol. */
732 typedef struct gfc_symbol
734 const char *name; /* Primary name, before renaming */
735 const char *module; /* Module this symbol came from */
739 symbol_attribute attr;
741 /* The interface member points to the formal argument list if the
742 symbol is a function or subroutine name. If the symbol is a
743 generic name, the generic member points to the list of
746 gfc_interface *generic;
747 gfc_access component_access;
749 gfc_formal_arglist *formal;
750 struct gfc_namespace *formal_ns;
752 struct gfc_expr *value; /* Parameter/Initializer value */
754 struct gfc_symbol *result; /* function result symbol */
755 gfc_component *components; /* Derived type components */
757 /* Defined only for Cray pointees; points to their pointer. */
758 struct gfc_symbol *cp_pointer;
760 struct gfc_symbol *common_next; /* Links for COMMON syms */
762 /* This is in fact a gfc_common_head but it is only used for pointer
763 comparisons to check if symbols are in the same common block. */
764 struct gfc_common_head* common_head;
766 /* Make sure setup code for dummy arguments is generated in the correct
770 gfc_namelist *namelist, *namelist_tail;
772 /* Change management fields. Symbols that might be modified by the
773 current statement have the mark member nonzero and are kept in a
774 singly linked list through the tlink field. Of these symbols,
775 symbols with old_symbol equal to NULL are symbols created within
776 the current statement. Otherwise, old_symbol points to a copy of
779 struct gfc_symbol *old_symbol, *tlink;
780 unsigned mark:1, new:1;
781 /* Nonzero if all equivalences associated with this symbol have been
783 unsigned equiv_built:1;
785 struct gfc_namespace *ns; /* namespace containing this symbol */
792 /* This structure is used to keep track of symbols in common blocks. */
794 typedef struct gfc_common_head
797 int use_assoc, saved;
798 char name[GFC_MAX_SYMBOL_LEN + 1];
799 struct gfc_symbol *head;
803 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
806 /* A list of all the alternate entry points for a procedure. */
808 typedef struct gfc_entry_list
810 /* The symbol for this entry point. */
812 /* The zero-based id of this entry point. */
814 /* The LABEL_EXPR marking this entry point. */
816 /* The nest item in the list. */
817 struct gfc_entry_list *next;
821 #define gfc_get_entry_list() \
822 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
824 /* Within a namespace, symbols are pointed to by symtree nodes that
825 are linked together in a balanced binary tree. There can be
826 several symtrees pointing to the same symbol node via USE
829 typedef struct gfc_symtree
831 BBT_HEADER (gfc_symtree);
836 gfc_symbol *sym; /* Symbol associated with this node */
838 gfc_common_head *common;
845 /* A linked list of derived types in the namespace. */
846 typedef struct gfc_dt_list
848 struct gfc_symbol *derived;
849 struct gfc_dt_list *next;
853 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
856 /* A namespace describes the contents of procedure, module or
858 /* ??? Anything else use these? */
860 typedef struct gfc_namespace
862 /* Tree containing all the symbols in this namespace. */
863 gfc_symtree *sym_root;
864 /* Tree containing all the user-defined operators in the namespace. */
865 gfc_symtree *uop_root;
866 /* Tree containing all the common blocks. */
867 gfc_symtree *common_root;
869 /* If set_flag[letter] is set, an implicit type has been set for letter. */
870 int set_flag[GFC_LETTERS];
871 /* Keeps track of the implicit types associated with the letters. */
872 gfc_typespec default_type[GFC_LETTERS];
874 /* If this is a namespace of a procedure, this points to the procedure. */
875 struct gfc_symbol *proc_name;
876 /* If this is the namespace of a unit which contains executable
877 code, this points to it. */
878 struct gfc_code *code;
880 /* Points to the equivalences set up in this namespace. */
881 struct gfc_equiv *equiv;
882 gfc_interface *operator[GFC_INTRINSIC_OPS];
884 /* Points to the parent namespace, i.e. the namespace of a module or
885 procedure in which the procedure belonging to this namespace is
886 contained. The parent namespace points to this namespace either
887 directly via CONTAINED, or indirectly via the chain built by
889 struct gfc_namespace *parent;
890 /* CONTAINED points to the first contained namespace. Sibling
891 namespaces are chained via SIBLING. */
892 struct gfc_namespace *contained, *sibling;
894 gfc_common_head blank_common;
895 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
897 gfc_st_label *st_labels;
898 /* This list holds information about all the data initializers in
900 struct gfc_data *data;
902 gfc_charlen *cl_list;
904 int save_all, seen_save, seen_implicit_none;
906 /* Normally we don't need to refcount namespaces. However when we read
907 a module containing a function with multiple entry points, this
908 will appear as several functions with the same formal namespace. */
911 /* A list of all alternate entry points to this procedure (or NULL). */
912 gfc_entry_list *entries;
914 /* A list of all derived types in this procedure (or NULL). */
915 gfc_dt_list *derived_types;
917 /* Set to 1 if namespace is a BLOCK DATA program unit. */
922 extern gfc_namespace *gfc_current_ns;
924 /* Global symbols are symbols of global scope. Currently we only use
925 this to detect collisions already when parsing.
926 TODO: Extend to verify procedure calls. */
928 typedef struct gfc_gsymbol
930 BBT_HEADER(gfc_gsymbol);
933 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
934 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
941 extern gfc_gsymbol *gfc_gsym_root;
943 /* Information on interfaces being built. */
954 extern gfc_interface_info current_interface;
957 /* Array reference. */
958 typedef struct gfc_array_ref
961 int dimen; /* # of components in the reference */
965 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
966 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
967 *stride[GFC_MAX_DIMENSIONS];
970 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
971 dimen_type[GFC_MAX_DIMENSIONS];
973 struct gfc_expr *offset;
977 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
980 /* Component reference nodes. A variable is stored as an expression
981 node that points to the base symbol. After that, a singly linked
982 list of component reference nodes gives the variable's complete
983 resolution. The array_ref component may be present and comes
984 before the component component. */
987 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
990 typedef struct gfc_ref
996 struct gfc_array_ref ar;
1000 gfc_component *component;
1007 struct gfc_expr *start, *end; /* Substring */
1008 gfc_charlen *length;
1015 struct gfc_ref *next;
1019 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1022 /* Structures representing intrinsic symbols and their arguments lists. */
1023 typedef struct gfc_intrinsic_arg
1025 char name[GFC_MAX_SYMBOL_LEN + 1];
1029 gfc_actual_arglist *actual;
1031 struct gfc_intrinsic_arg *next;
1037 /* Specifies the various kinds of check functions used to verify the
1038 argument lists of intrinsic functions. fX with X an integer refer
1039 to check functions of intrinsics with X arguments. f1m is used for
1040 the MAX and MIN intrinsics which can have an arbitrary number of
1041 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1042 these have special semantics. */
1047 try (*f1)(struct gfc_expr *);
1048 try (*f1m)(gfc_actual_arglist *);
1049 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1050 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1051 try (*f3ml)(gfc_actual_arglist *);
1052 try (*f3red)(gfc_actual_arglist *);
1053 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1055 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1056 struct gfc_expr *, struct gfc_expr *);
1060 /* Like gfc_check_f, these specify the type of the simplification
1061 function associated with an intrinsic. The fX are just like in
1062 gfc_check_f. cc is used for type conversion functions. */
1066 struct gfc_expr *(*f0)(void);
1067 struct gfc_expr *(*f1)(struct gfc_expr *);
1068 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1069 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1071 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1072 struct gfc_expr *, struct gfc_expr *);
1073 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1074 struct gfc_expr *, struct gfc_expr *,
1076 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1080 /* Again like gfc_check_f, these specify the type of the resolution
1081 function associated with an intrinsic. The fX are just like in
1082 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1087 void (*f0)(struct gfc_expr *);
1088 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1089 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1090 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1091 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1093 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1094 struct gfc_expr *, struct gfc_expr *);
1095 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1096 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1097 void (*s1)(struct gfc_code *);
1102 typedef struct gfc_intrinsic_sym
1104 const char *name, *lib_name;
1105 gfc_intrinsic_arg *formal;
1107 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1109 gfc_simplify_f simplify;
1111 gfc_resolve_f resolve;
1112 struct gfc_intrinsic_sym *specific_head, *next;
1113 gfc_generic_isym_id generic_id;
1119 /* Expression nodes. The expression node types deserve explanations,
1120 since the last couple can be easily misconstrued:
1122 EXPR_OP Operator node pointing to one or two other nodes
1123 EXPR_FUNCTION Function call, symbol points to function's name
1124 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1125 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1126 which expresses structure, array and substring refs.
1127 EXPR_NULL The NULL pointer value (which also has a basic type).
1128 EXPR_SUBSTRING A substring of a constant string
1129 EXPR_STRUCTURE A structure constructor
1130 EXPR_ARRAY An array constructor. */
1134 #define GFC_RND_MODE GMP_RNDN
1136 typedef struct gfc_expr
1140 gfc_typespec ts; /* These two refer to the overall expression */
1143 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1145 /* Nonnull for functions and structure constructors */
1146 gfc_symtree *symtree;
1152 /* True if it is converted from Hollerith constant. */
1153 unsigned int from_H : 1;
1154 /* True if the expression is a call to a function that returns an array,
1155 and if we have decided not to allocate temporary data for that array. */
1156 unsigned int inline_noncopying_intrinsic : 1;
1173 gfc_intrinsic_op operator;
1175 struct gfc_expr *op1, *op2;
1181 gfc_actual_arglist *actual;
1182 const char *name; /* Points to the ultimate name of the function */
1183 gfc_intrinsic_sym *isym;
1195 struct gfc_constructor *constructor;
1203 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1205 /* Structures for information associated with different kinds of
1206 numbers. The first set of integer parameters define all there is
1207 to know about a particular kind. The rest of the elements are
1208 computed from the first elements. */
1212 /* Values really representable by the target. */
1213 mpz_t huge, pedantic_min_int, min_int, max_int;
1215 int kind, radix, digits, bit_size, range;
1217 /* True if the C type of the given name maps to this precision.
1218 Note that more than one bit can be set. */
1219 unsigned int c_char : 1;
1220 unsigned int c_short : 1;
1221 unsigned int c_int : 1;
1222 unsigned int c_long : 1;
1223 unsigned int c_long_long : 1;
1227 extern gfc_integer_info gfc_integer_kinds[];
1234 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1235 unsigned int c_bool : 1;
1239 extern gfc_logical_info gfc_logical_kinds[];
1244 mpfr_t epsilon, huge, tiny, subnormal;
1245 int kind, radix, digits, min_exponent, max_exponent;
1246 int range, precision;
1248 /* The precision of the type as reported by GET_MODE_PRECISION. */
1251 /* True if the C type of the given name maps to this precision.
1252 Note that more than one bit can be set. */
1253 unsigned int c_float : 1;
1254 unsigned int c_double : 1;
1255 unsigned int c_long_double : 1;
1259 extern gfc_real_info gfc_real_kinds[];
1262 /* Equivalence structures. Equivalent lvalues are linked along the
1263 *eq pointer, equivalence sets are strung along the *next node. */
1264 typedef struct gfc_equiv
1266 struct gfc_equiv *next, *eq;
1273 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1276 /* gfc_case stores the selector list of a case statement. The *low
1277 and *high pointers can point to the same expression in the case of
1278 a single value. If *high is NULL, the selection is from *low
1279 upwards, if *low is NULL the selection is *high downwards.
1281 This structure has separate fields to allow single and double linked
1282 lists of CASEs at the same time. The singe linked list along the NEXT
1283 field is a list of cases for a single CASE label. The double linked
1284 list along the LEFT/RIGHT fields is used to detect overlap and to
1285 build a table of the cases for SELECT constructs with a CHARACTER
1288 typedef struct gfc_case
1290 /* Where we saw this case. */
1294 /* Case range values. If (low == high), it's a single value. If one of
1295 the labels is NULL, it's an unbounded case. If both are NULL, this
1296 represents the default case. */
1297 gfc_expr *low, *high;
1299 /* Next case label in the list of cases for a single CASE label. */
1300 struct gfc_case *next;
1302 /* Used for detecting overlap, and for code generation. */
1303 struct gfc_case *left, *right;
1305 /* True if this case label can never be matched. */
1310 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1315 gfc_expr *var, *start, *end, *step;
1319 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1322 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1324 typedef struct gfc_alloc
1327 struct gfc_alloc *next;
1331 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1336 gfc_expr *unit, *file, *status, *access, *form, *recl,
1337 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1345 gfc_expr *unit, *status, *iostat, *iomsg;
1353 gfc_expr *unit, *iostat, *iomsg;
1361 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1362 *name, *access, *sequential, *direct, *form, *formatted,
1363 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1364 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert;
1374 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1376 gfc_symbol *namelist;
1377 /* A format_label of `format_asterisk' indicates the "*" format */
1378 gfc_st_label *format_label;
1379 gfc_st_label *err, *end, *eor;
1381 locus eor_where, end_where, err_where;
1386 typedef struct gfc_forall_iterator
1388 gfc_expr *var, *start, *end, *stride;
1389 struct gfc_forall_iterator *next;
1391 gfc_forall_iterator;
1394 /* Executable statements that fill gfc_code structures. */
1397 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1398 EXEC_GOTO, EXEC_CALL, EXEC_RETURN, EXEC_ENTRY,
1399 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE,
1400 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1401 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1402 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1403 EXEC_OPEN, EXEC_CLOSE,
1404 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1405 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH
1409 typedef struct gfc_code
1413 struct gfc_code *block, *next;
1416 gfc_st_label *here, *label, *label2, *label3;
1417 gfc_symtree *symtree;
1418 gfc_expr *expr, *expr2;
1419 /* A name isn't sufficient to identify a subroutine, we need the actual
1420 symbol for the interface definition.
1421 const char *sub_name; */
1422 gfc_symbol *resolved_sym;
1426 gfc_actual_arglist *actual;
1427 gfc_case *case_list;
1428 gfc_iterator *iterator;
1429 gfc_alloc *alloc_list;
1432 gfc_filepos *filepos;
1433 gfc_inquire *inquire;
1435 gfc_forall_iterator *forall_iterator;
1436 struct gfc_code *whichloop;
1438 gfc_entry_list *entry;
1440 ext; /* Points to additional structures required by statement */
1442 /* Backend_decl is used for cycle and break labels in do loops, and
1443 probably for other constructs as well, once we translate them. */
1449 /* Storage for DATA statements. */
1450 typedef struct gfc_data_variable
1454 struct gfc_data_variable *list, *next;
1459 typedef struct gfc_data_value
1461 unsigned int repeat;
1463 struct gfc_data_value *next;
1468 typedef struct gfc_data
1470 gfc_data_variable *var;
1471 gfc_data_value *value;
1474 struct gfc_data *next;
1478 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1479 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1480 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1483 /* Structure for holding compile options */
1487 gfc_source_form source_form;
1488 /* When fixed_line_length or free_line_length are 0, the whole line is used.
1490 Default is -1, the maximum line length mandated by the respective source
1492 for FORM_FREE GFC_MAX_LINE (132)
1495 If fixed_line_length or free_line_length is not 0 nor -1 then the user has
1496 requested a specific line-length.
1498 If the user requests a fixed_line_length <7 then gfc_init_options()
1499 emits a fatal error. */
1500 int fixed_line_length; /* maximum line length in fixed-form. */
1501 int free_line_length; /* maximum line length in free-form. */
1502 int max_identifier_length;
1506 int warn_conversion;
1507 int warn_implicit_interface;
1508 int warn_line_truncation;
1510 int warn_surprising;
1511 int warn_unused_labels;
1513 int flag_default_double;
1514 int flag_default_integer;
1515 int flag_default_real;
1517 int flag_underscoring;
1518 int flag_second_underscore;
1519 int flag_implicit_none;
1520 int flag_max_stack_var_size;
1521 int flag_module_access_private;
1522 int flag_no_backend;
1523 int flag_pack_derived;
1524 int flag_repack_arrays;
1525 int flag_preprocessed;
1529 int flag_cray_pointer;
1538 int warn_nonstd_intrinsics;
1544 extern gfc_option_t gfc_option;
1547 /* Constructor nodes for array and structure constructors. */
1548 typedef struct gfc_constructor
1551 gfc_iterator *iterator;
1553 struct gfc_constructor *next;
1556 mpz_t offset; /* Record the offset of array element which appears in
1557 data statement like "data a(5)/4/". */
1558 gfc_component *component; /* Record the component being initialized. */
1561 mpz_t repeat; /* Record the repeat number of initial values in data
1562 statement like "data a/5*10/". */
1567 typedef struct iterator_stack
1569 gfc_symtree *variable;
1571 struct iterator_stack *prev;
1574 extern iterator_stack *iter_stack;
1576 /************************ Function prototypes *************************/
1579 void gfc_formalize_init_value (gfc_symbol *);
1580 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1581 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1582 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1583 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1586 void gfc_scanner_done_1 (void);
1587 void gfc_scanner_init_1 (void);
1589 void gfc_add_include_path (const char *);
1590 void gfc_release_include_path (void);
1591 FILE *gfc_open_included_file (const char *, bool);
1593 int gfc_at_end (void);
1594 int gfc_at_eof (void);
1595 int gfc_at_bol (void);
1596 int gfc_at_eol (void);
1597 void gfc_advance_line (void);
1598 int gfc_check_include (void);
1600 void gfc_skip_comments (void);
1601 int gfc_next_char_literal (int);
1602 int gfc_next_char (void);
1603 int gfc_peek_char (void);
1604 void gfc_error_recovery (void);
1605 void gfc_gobble_whitespace (void);
1606 try gfc_new_file (void);
1607 const char * gfc_read_orig_filename (const char *, const char **);
1609 extern gfc_source_form gfc_current_form;
1610 extern const char *gfc_source_file;
1611 extern locus gfc_current_locus;
1614 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1615 void gfc_free (void *);
1616 int gfc_terminal_width(void);
1617 void gfc_clear_ts (gfc_typespec *);
1618 FILE *gfc_open_file (const char *);
1619 const char *gfc_basic_typename (bt);
1620 const char *gfc_typename (gfc_typespec *);
1622 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1623 "=" : gfc_code2string (intrinsic_operators, OP))
1625 const char *gfc_code2string (const mstring *, int);
1626 int gfc_string2code (const mstring *, const char *);
1627 const char *gfc_intent_string (sym_intent);
1629 void gfc_init_1 (void);
1630 void gfc_init_2 (void);
1631 void gfc_done_1 (void);
1632 void gfc_done_2 (void);
1635 unsigned int gfc_init_options (unsigned int, const char **);
1636 int gfc_handle_option (size_t, const char *, int);
1637 bool gfc_post_options (const char **);
1640 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1644 typedef struct gfc_error_buf
1647 size_t allocated, index;
1651 void gfc_error_init_1 (void);
1652 void gfc_buffer_error (int);
1654 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1655 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1656 void gfc_clear_warning (void);
1657 void gfc_warning_check (void);
1659 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1660 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1661 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1662 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1663 void gfc_clear_error (void);
1664 int gfc_error_check (void);
1666 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1668 /* A general purpose syntax error. */
1669 #define gfc_syntax_error(ST) \
1670 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1672 void gfc_push_error (gfc_error_buf *);
1673 void gfc_pop_error (gfc_error_buf *);
1674 void gfc_free_error (gfc_error_buf *);
1676 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1677 void gfc_status_char (char);
1679 void gfc_get_errors (int *, int *);
1682 void gfc_arith_init_1 (void);
1683 void gfc_arith_done_1 (void);
1684 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1685 arith gfc_check_integer_range (mpz_t p, int kind);
1688 int gfc_validate_kind (bt, int, bool);
1689 extern int gfc_index_integer_kind;
1690 extern int gfc_default_integer_kind;
1691 extern int gfc_max_integer_kind;
1692 extern int gfc_default_real_kind;
1693 extern int gfc_default_double_kind;
1694 extern int gfc_default_character_kind;
1695 extern int gfc_default_logical_kind;
1696 extern int gfc_default_complex_kind;
1697 extern int gfc_c_int_kind;
1700 void gfc_clear_new_implicit (void);
1701 try gfc_add_new_implicit_range (int, int);
1702 try gfc_merge_new_implicit (gfc_typespec *);
1703 void gfc_set_implicit_none (void);
1705 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1706 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1708 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1709 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1711 void gfc_set_sym_referenced (gfc_symbol * sym);
1713 try gfc_add_attribute (symbol_attribute *, locus *, uint);
1714 try gfc_add_allocatable (symbol_attribute *, locus *);
1715 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1716 try gfc_add_external (symbol_attribute *, locus *);
1717 try gfc_add_intrinsic (symbol_attribute *, locus *);
1718 try gfc_add_optional (symbol_attribute *, locus *);
1719 try gfc_add_pointer (symbol_attribute *, locus *);
1720 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1721 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1722 try gfc_mod_pointee_as (gfc_array_spec *as);
1723 try gfc_add_result (symbol_attribute *, const char *, locus *);
1724 try gfc_add_save (symbol_attribute *, const char *, locus *);
1725 try gfc_add_saved_common (symbol_attribute *, locus *);
1726 try gfc_add_target (symbol_attribute *, locus *);
1727 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1728 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1729 try gfc_add_common (symbol_attribute *, locus *);
1730 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1731 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1732 try gfc_add_data (symbol_attribute *, const char *, locus *);
1733 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1734 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1735 try gfc_add_elemental (symbol_attribute *, locus *);
1736 try gfc_add_pure (symbol_attribute *, locus *);
1737 try gfc_add_recursive (symbol_attribute *, locus *);
1738 try gfc_add_function (symbol_attribute *, const char *, locus *);
1739 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1741 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1742 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1743 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1744 try gfc_add_procedure (symbol_attribute *, procedure_type,
1745 const char *, locus *);
1746 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1747 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1748 gfc_formal_arglist *, locus *);
1749 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1751 void gfc_clear_attr (symbol_attribute *);
1752 try gfc_missing_attr (symbol_attribute *, locus *);
1753 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1755 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1756 gfc_symbol *gfc_use_derived (gfc_symbol *);
1757 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1758 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1760 gfc_st_label *gfc_get_st_label (int);
1761 void gfc_free_st_label (gfc_st_label *);
1762 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1763 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1765 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1766 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1767 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1768 gfc_user_op *gfc_get_uop (const char *);
1769 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1770 void gfc_free_symbol (gfc_symbol *);
1771 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1772 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1773 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1774 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1775 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1776 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1777 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1779 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1781 void gfc_undo_symbols (void);
1782 void gfc_commit_symbols (void);
1783 void gfc_commit_symbol (gfc_symbol * sym);
1784 void gfc_free_namespace (gfc_namespace *);
1786 void gfc_symbol_init_2 (void);
1787 void gfc_symbol_done_2 (void);
1789 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1790 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1791 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1792 void gfc_save_all (gfc_namespace *);
1794 void gfc_symbol_state (void);
1796 gfc_gsymbol *gfc_get_gsymbol (const char *);
1797 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1800 extern int gfc_init_expr;
1802 /* Given a symbol that we have decided is intrinsic, mark it as such
1803 by placing it into a special module that is otherwise impossible to
1806 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1808 void gfc_intrinsic_init_1 (void);
1809 void gfc_intrinsic_done_1 (void);
1811 char gfc_type_letter (bt);
1812 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1813 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1814 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1815 int gfc_generic_intrinsic (const char *);
1816 int gfc_specific_intrinsic (const char *);
1817 int gfc_intrinsic_name (const char *, int);
1818 gfc_intrinsic_sym *gfc_find_function (const char *);
1820 match gfc_intrinsic_func_interface (gfc_expr *, int);
1821 match gfc_intrinsic_sub_interface (gfc_code *, int);
1824 void gfc_simplify_init_1 (void);
1826 /* match.c -- FIXME */
1827 void gfc_free_iterator (gfc_iterator *, int);
1828 void gfc_free_forall_iterator (gfc_forall_iterator *);
1829 void gfc_free_alloc_list (gfc_alloc *);
1830 void gfc_free_namelist (gfc_namelist *);
1831 void gfc_free_equiv (gfc_equiv *);
1832 void gfc_free_data (gfc_data *);
1833 void gfc_free_case_list (gfc_case *);
1836 void gfc_free_actual_arglist (gfc_actual_arglist *);
1837 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1838 const char *gfc_extract_int (gfc_expr *, int *);
1840 gfc_expr *gfc_build_conversion (gfc_expr *);
1841 void gfc_free_ref_list (gfc_ref *);
1842 void gfc_type_convert_binary (gfc_expr *);
1843 int gfc_is_constant_expr (gfc_expr *);
1844 try gfc_simplify_expr (gfc_expr *, int);
1845 int gfc_has_vector_index (gfc_expr *);
1847 gfc_expr *gfc_get_expr (void);
1848 void gfc_free_expr (gfc_expr *);
1849 void gfc_replace_expr (gfc_expr *, gfc_expr *);
1850 gfc_expr *gfc_int_expr (int);
1851 gfc_expr *gfc_logical_expr (int, locus *);
1852 mpz_t *gfc_copy_shape (mpz_t *, int);
1853 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
1854 gfc_expr *gfc_copy_expr (gfc_expr *);
1856 try gfc_specification_expr (gfc_expr *);
1858 int gfc_numeric_ts (gfc_typespec *);
1859 int gfc_kind_max (gfc_expr *, gfc_expr *);
1861 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
1862 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
1863 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
1864 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
1866 gfc_expr *gfc_default_initializer (gfc_typespec *);
1867 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
1869 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
1872 extern gfc_code new_st;
1874 void gfc_clear_new_st (void);
1875 gfc_code *gfc_get_code (void);
1876 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
1877 void gfc_free_statement (gfc_code *);
1878 void gfc_free_statements (gfc_code *);
1881 try gfc_resolve_expr (gfc_expr *);
1882 void gfc_resolve (gfc_namespace *);
1883 int gfc_impure_variable (gfc_symbol *);
1884 int gfc_pure (gfc_symbol *);
1885 int gfc_elemental (gfc_symbol *);
1886 try gfc_resolve_iterator (gfc_iterator *, bool);
1887 try gfc_resolve_index (gfc_expr *, int);
1888 try gfc_resolve_dim_arg (gfc_expr *);
1889 int gfc_is_formal_arg (void);
1892 void gfc_free_array_spec (gfc_array_spec *);
1893 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
1895 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
1896 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
1897 try gfc_resolve_array_spec (gfc_array_spec *, int);
1899 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
1901 gfc_expr *gfc_start_constructor (bt, int, locus *);
1902 void gfc_append_constructor (gfc_expr *, gfc_expr *);
1903 void gfc_free_constructor (gfc_constructor *);
1904 void gfc_simplify_iterator_var (gfc_expr *);
1905 try gfc_expand_constructor (gfc_expr *);
1906 int gfc_constant_ac (gfc_expr *);
1907 int gfc_expanded_ac (gfc_expr *);
1908 try gfc_resolve_array_constructor (gfc_expr *);
1909 try gfc_check_constructor_type (gfc_expr *);
1910 try gfc_check_iter_variable (gfc_expr *);
1911 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
1912 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
1913 gfc_expr *gfc_get_array_element (gfc_expr *, int);
1914 try gfc_array_size (gfc_expr *, mpz_t *);
1915 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
1916 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
1917 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
1918 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
1919 gfc_constructor *gfc_get_constructor (void);
1920 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
1921 try spec_size (gfc_array_spec *, mpz_t *);
1922 int gfc_is_compile_time_shape (gfc_array_spec *);
1924 /* interface.c -- FIXME: some of these should be in symbol.c */
1925 void gfc_free_interface (gfc_interface *);
1926 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
1927 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
1928 void gfc_check_interfaces (gfc_namespace *);
1929 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
1930 gfc_symbol *gfc_search_interface (gfc_interface *, int,
1931 gfc_actual_arglist **);
1932 try gfc_extend_expr (gfc_expr *);
1933 void gfc_free_formal_arglist (gfc_formal_arglist *);
1934 try gfc_extend_assign (gfc_code *, gfc_namespace *);
1935 try gfc_add_interface (gfc_symbol * sym);
1938 extern gfc_st_label format_asterisk;
1940 void gfc_free_open (gfc_open *);
1941 try gfc_resolve_open (gfc_open *);
1942 void gfc_free_close (gfc_close *);
1943 try gfc_resolve_close (gfc_close *);
1944 void gfc_free_filepos (gfc_filepos *);
1945 try gfc_resolve_filepos (gfc_filepos *);
1946 void gfc_free_inquire (gfc_inquire *);
1947 try gfc_resolve_inquire (gfc_inquire *);
1948 void gfc_free_dt (gfc_dt *);
1949 try gfc_resolve_dt (gfc_dt *);
1952 void gfc_module_init_2 (void);
1953 void gfc_module_done_2 (void);
1954 void gfc_dump_module (const char *, int);
1955 bool gfc_check_access (gfc_access, gfc_access);
1958 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
1959 symbol_attribute gfc_expr_attr (gfc_expr *);
1962 void gfc_generate_code (gfc_namespace *);
1963 void gfc_generate_module_code (gfc_namespace *);
1966 typedef int (*compare_fn) (void *, void *);
1967 void gfc_insert_bbt (void *, void *, compare_fn);
1968 void gfc_delete_bbt (void *, void *, compare_fn);
1970 /* dump-parse-tree.c */
1971 void gfc_show_namespace (gfc_namespace *);
1974 try gfc_parse_file (void);
1975 void global_used (gfc_gsymbol *, locus *);
1978 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
1980 #endif /* GCC_GFORTRAN_H */