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)
115 /*************************** Enums *****************************/
117 /* The author remains confused to this day about the convention of
118 returning '0' for 'SUCCESS'... or was it the other way around? The
119 following enum makes things much more readable. We also start
120 values off at one instead of zero. */
123 { SUCCESS = 1, FAILURE }
126 /* Matchers return one of these three values. The difference between
127 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
128 successful, but that something non-syntactic is wrong and an error
129 has already been issued. */
132 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
136 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
140 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
141 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH
145 /* Expression node types. */
147 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
148 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
154 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
155 AS_ASSUMED_SIZE, AS_UNKNOWN
160 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
163 /* Statement label types. */
165 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
166 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
170 /* Intrinsic operators. */
172 { GFC_INTRINSIC_BEGIN = 0,
173 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
174 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
175 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
176 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
177 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
178 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
180 GFC_INTRINSIC_END /* Sentinel */
185 /* Strings for all intrinsic operators. */
186 extern mstring intrinsic_operators[];
189 /* This macro is the number of intrinsic operators that exist.
190 Assumptions are made about the numbering of the interface_op enums. */
191 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
193 /* Arithmetic results. */
195 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
196 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
203 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
204 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
205 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
206 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
207 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
208 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
209 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
210 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
211 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_INQUIRE, ST_INTERFACE,
212 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
213 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
214 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
215 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
216 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
217 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM, ST_NONE
222 /* Types of interfaces that we can have. Assignment interfaces are
223 considered to be intrinsic operators. */
226 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
227 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
231 /* Symbol flavors: these are all mutually exclusive.
232 10 elements = 4 bits. */
233 typedef enum sym_flavor
235 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
236 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST
240 /* Procedure types. 7 elements = 3 bits. */
241 typedef enum procedure_type
242 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
243 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
248 typedef enum sym_intent
249 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
254 typedef enum gfc_access
255 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
259 /* Flags to keep track of where an interface came from.
260 4 elements = 2 bits. */
262 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
266 /* Strings for all symbol attributes. We use these for dumping the
267 parse tree, in error messages, and also when reading and writing
268 modules. In symbol.c. */
269 extern const mstring flavors[];
270 extern const mstring procedures[];
271 extern const mstring intents[];
272 extern const mstring access_types[];
273 extern const mstring ifsrc_types[];
275 /* Enumeration of all the generic intrinsic functions. Used by the
276 backend for identification of a function. */
278 enum gfc_generic_isym_id
280 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
281 the backend (eg. KIND). */
313 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
323 GFC_ISYM_DOT_PRODUCT,
403 GFC_ISYM_SET_EXPONENT,
435 typedef enum gfc_generic_isym_id gfc_generic_isym_id;
437 /************************* Structures *****************************/
439 /* Used for keeping things in balanced binary trees. */
440 #define BBT_HEADER(self) int priority; struct self *left, *right
442 /* Symbol attribute structure. */
445 /* Variable attributes. */
446 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
447 optional:1, pointer:1, save:1, target:1,
448 dummy:1, result:1, assign:1;
450 unsigned data:1, /* Symbol is named in a DATA statement. */
451 use_assoc:1; /* Symbol has been use-associated. */
453 unsigned in_namelist:1, in_common:1, in_equivalence:1;
454 unsigned function:1, subroutine:1, generic:1;
455 unsigned implicit_type:1; /* Type defined via implicit rules. */
456 unsigned untyped:1; /* No implicit type could be found. */
458 /* Function/subroutine attributes */
459 unsigned sequence:1, elemental:1, pure:1, recursive:1;
460 unsigned unmaskable:1, masked:1, contained:1;
462 /* This is set if the subroutine doesn't return. Currently, this
463 is only possible for intrinsic subroutines. */
466 /* Set if this procedure is an alternate entry point. These procedures
467 don't have any code associated, and the backend will turn them into
468 thunks to the master function. */
471 /* Set if this is the master function for a procedure with multiple
473 unsigned entry_master:1;
475 /* Set if this is the master function for a function with multiple
476 entry points where characteristics of the entry points differ. */
477 unsigned mixed_entry_master:1;
479 /* Set if a function must always be referenced by an explicit interface. */
480 unsigned always_explicit:1;
482 /* Set if the symbol has been referenced in an expression. No further
483 modification of type or type parameters is permitted. */
484 unsigned referenced:1;
486 /* Set if the is the symbol for the main program. This is the least
487 cumbersome way to communicate this function property without
488 strcmp'ing with __MAIN everywhere. */
489 unsigned is_main_program:1;
491 /* Mutually exclusive multibit attributes. */
492 ENUM_BITFIELD (gfc_access) access:2;
493 ENUM_BITFIELD (sym_intent) intent:2;
494 ENUM_BITFIELD (sym_flavor) flavor:4;
495 ENUM_BITFIELD (ifsrc) if_source:2;
497 ENUM_BITFIELD (procedure_type) proc:3;
499 /* Special attributes for Cray pointers, pointees. */
500 unsigned cray_pointer:1, cray_pointee:1;
506 /* The following three structures are used to identify a location in
509 gfc_file is used to maintain a tree of the source files and how
510 they include each other
512 gfc_linebuf holds a single line of source code and information
513 which file it resides in
515 locus point to the sourceline and the character in the source
519 typedef struct gfc_file
521 struct gfc_file *included_by, *next, *up;
522 int inclusion_line, line;
526 typedef struct gfc_linebuf
528 #ifdef USE_MAPPED_LOCATION
529 source_location location;
533 struct gfc_file *file;
534 struct gfc_linebuf *next;
541 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
549 /* In order for the "gfc" format checking to work correctly, you must
550 have declared a typedef locus first. */
551 #if GCC_VERSION >= 4001
552 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
554 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
558 extern int gfc_suppress_error;
561 /* Character length structures hold the expression that gives the
562 length of a character variable. We avoid putting these into
563 gfc_typespec because doing so prevents us from doing structure
564 copies and forces us to deallocate any typespecs we create, as well
565 as structures that contain typespecs. They also can have multiple
566 character typespecs pointing to them.
568 These structures form a singly linked list within the current
569 namespace and are deallocated with the namespace. It is possible to
570 end up with gfc_charlen structures that have nothing pointing to them. */
572 typedef struct gfc_charlen
574 struct gfc_expr *length;
575 struct gfc_charlen *next;
582 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
584 /* Type specification structure. FIXME: derived and cl could be union??? */
589 struct gfc_symbol *derived;
590 gfc_charlen *cl; /* For character types only. */
594 /* Array specification. */
597 int rank; /* A rank of zero means that a variable is a scalar. */
599 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
601 /* These two fields are used with the Cray Pointer extension. */
602 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
603 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
604 AS_EXPLICIT, but we want to remember that we
610 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
613 /* Components of derived types. */
614 typedef struct gfc_component
619 int pointer, dimension;
624 struct gfc_expr *initializer;
625 struct gfc_component *next;
629 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
631 /* Formal argument lists are lists of symbols. */
632 typedef struct gfc_formal_arglist
634 /* Symbol representing the argument at this position in the arglist. */
635 struct gfc_symbol *sym;
636 /* Points to the next formal argument. */
637 struct gfc_formal_arglist *next;
641 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
644 /* The gfc_actual_arglist structure is for actual arguments. */
645 typedef struct gfc_actual_arglist
648 /* Alternate return label when the expr member is null. */
649 struct gfc_st_label *label;
651 /* This is set to the type of an eventual omitted optional
652 argument. This is used to determine if a hidden string length
653 argument has to be added to a function call. */
656 struct gfc_expr *expr;
657 struct gfc_actual_arglist *next;
661 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
664 /* Because a symbol can belong to multiple namelists, they must be
665 linked externally to the symbol itself. */
666 typedef struct gfc_namelist
668 struct gfc_symbol *sym;
669 struct gfc_namelist *next;
673 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
676 /* The gfc_st_label structure is a doubly linked list attached to a
677 namespace that records the usage of statement labels within that
679 /* TODO: Make format/statement specifics a union. */
680 typedef struct gfc_st_label
682 BBT_HEADER(gfc_st_label);
686 gfc_sl_type defined, referenced;
688 struct gfc_expr *format;
697 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
698 typedef struct gfc_interface
700 struct gfc_symbol *sym;
702 struct gfc_interface *next;
706 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
709 /* User operator nodes. These are like stripped down symbols. */
714 gfc_interface *operator;
715 struct gfc_namespace *ns;
720 /* Symbol nodes. These are important things. They are what the
721 standard refers to as "entities". The possibly multiple names that
722 refer to the same entity are accomplished by a binary tree of
723 symtree structures that is balanced by the red-black method-- more
724 than one symtree node can point to any given symbol. */
726 typedef struct gfc_symbol
728 const char *name; /* Primary name, before renaming */
729 const char *module; /* Module this symbol came from */
733 symbol_attribute attr;
735 /* The interface member points to the formal argument list if the
736 symbol is a function or subroutine name. If the symbol is a
737 generic name, the generic member points to the list of
740 gfc_interface *generic;
741 gfc_access component_access;
743 gfc_formal_arglist *formal;
744 struct gfc_namespace *formal_ns;
746 struct gfc_expr *value; /* Parameter/Initializer value */
748 struct gfc_symbol *result; /* function result symbol */
749 gfc_component *components; /* Derived type components */
751 /* Defined only for Cray pointees; points to their pointer. */
752 struct gfc_symbol *cp_pointer;
754 struct gfc_symbol *common_next; /* Links for COMMON syms */
756 /* This is in fact a gfc_common_head but it is only used for pointer
757 comparisons to check if symbols are in the same common block. */
758 struct gfc_common_head* common_head;
760 /* Make sure setup code for dummy arguments is generated in the correct
764 gfc_namelist *namelist, *namelist_tail;
766 /* Change management fields. Symbols that might be modified by the
767 current statement have the mark member nonzero and are kept in a
768 singly linked list through the tlink field. Of these symbols,
769 symbols with old_symbol equal to NULL are symbols created within
770 the current statement. Otherwise, old_symbol points to a copy of
773 struct gfc_symbol *old_symbol, *tlink;
774 unsigned mark:1, new:1;
775 /* Nonzero if all equivalences associated with this symbol have been
777 unsigned equiv_built:1;
779 struct gfc_namespace *ns; /* namespace containing this symbol */
786 /* This structure is used to keep track of symbols in common blocks. */
788 typedef struct gfc_common_head
791 int use_assoc, saved;
792 char name[GFC_MAX_SYMBOL_LEN + 1];
793 struct gfc_symbol *head;
797 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
800 /* A list of all the alternate entry points for a procedure. */
802 typedef struct gfc_entry_list
804 /* The symbol for this entry point. */
806 /* The zero-based id of this entry point. */
808 /* The LABEL_EXPR marking this entry point. */
810 /* The nest item in the list. */
811 struct gfc_entry_list *next;
815 #define gfc_get_entry_list() \
816 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
818 /* Within a namespace, symbols are pointed to by symtree nodes that
819 are linked together in a balanced binary tree. There can be
820 several symtrees pointing to the same symbol node via USE
823 typedef struct gfc_symtree
825 BBT_HEADER (gfc_symtree);
830 gfc_symbol *sym; /* Symbol associated with this node */
832 gfc_common_head *common;
839 /* A linked list of derived types in the namespace. */
840 typedef struct gfc_dt_list
842 struct gfc_symbol *derived;
843 struct gfc_dt_list *next;
847 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
850 /* A namespace describes the contents of procedure, module or
852 /* ??? Anything else use these? */
854 typedef struct gfc_namespace
856 /* Tree containing all the symbols in this namespace. */
857 gfc_symtree *sym_root;
858 /* Tree containing all the user-defined operators in the namespace. */
859 gfc_symtree *uop_root;
860 /* Tree containing all the common blocks. */
861 gfc_symtree *common_root;
863 /* If set_flag[letter] is set, an implicit type has been set for letter. */
864 int set_flag[GFC_LETTERS];
865 /* Keeps track of the implicit types associated with the letters. */
866 gfc_typespec default_type[GFC_LETTERS];
868 /* If this is a namespace of a procedure, this points to the procedure. */
869 struct gfc_symbol *proc_name;
870 /* If this is the namespace of a unit which contains executable
871 code, this points to it. */
872 struct gfc_code *code;
874 /* Points to the equivalences set up in this namespace. */
875 struct gfc_equiv *equiv;
876 gfc_interface *operator[GFC_INTRINSIC_OPS];
878 /* Points to the parent namespace, i.e. the namespace of a module or
879 procedure in which the procedure belonging to this namespace is
880 contained. The parent namespace points to this namespace either
881 directly via CONTAINED, or indirectly via the chain built by
883 struct gfc_namespace *parent;
884 /* CONTAINED points to the first contained namespace. Sibling
885 namespaces are chained via SIBLING. */
886 struct gfc_namespace *contained, *sibling;
888 gfc_common_head blank_common;
889 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
891 gfc_st_label *st_labels;
892 /* This list holds information about all the data initializers in
894 struct gfc_data *data;
896 gfc_charlen *cl_list;
898 int save_all, seen_save, seen_implicit_none;
900 /* Normally we don't need to refcount namespaces. However when we read
901 a module containing a function with multiple entry points, this
902 will appear as several functions with the same formal namespace. */
905 /* A list of all alternate entry points to this procedure (or NULL). */
906 gfc_entry_list *entries;
908 /* A list of all derived types in this procedure (or NULL). */
909 gfc_dt_list *derived_types;
911 /* Set to 1 if namespace is a BLOCK DATA program unit. */
916 extern gfc_namespace *gfc_current_ns;
918 /* Global symbols are symbols of global scope. Currently we only use
919 this to detect collisions already when parsing.
920 TODO: Extend to verify procedure calls. */
922 typedef struct gfc_gsymbol
924 BBT_HEADER(gfc_gsymbol);
927 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
928 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
935 extern gfc_gsymbol *gfc_gsym_root;
937 /* Information on interfaces being built. */
948 extern gfc_interface_info current_interface;
951 /* Array reference. */
952 typedef struct gfc_array_ref
955 int dimen; /* # of components in the reference */
959 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
960 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
961 *stride[GFC_MAX_DIMENSIONS];
964 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
965 dimen_type[GFC_MAX_DIMENSIONS];
967 struct gfc_expr *offset;
971 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
974 /* Component reference nodes. A variable is stored as an expression
975 node that points to the base symbol. After that, a singly linked
976 list of component reference nodes gives the variable's complete
977 resolution. The array_ref component may be present and comes
978 before the component component. */
981 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
984 typedef struct gfc_ref
990 struct gfc_array_ref ar;
994 gfc_component *component;
1001 struct gfc_expr *start, *end; /* Substring */
1002 gfc_charlen *length;
1009 struct gfc_ref *next;
1013 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1016 /* Structures representing intrinsic symbols and their arguments lists. */
1017 typedef struct gfc_intrinsic_arg
1019 char name[GFC_MAX_SYMBOL_LEN + 1];
1023 gfc_actual_arglist *actual;
1025 struct gfc_intrinsic_arg *next;
1031 /* Specifies the various kinds of check functions used to verify the
1032 argument lists of intrinsic functions. fX with X an integer refer
1033 to check functions of intrinsics with X arguments. f1m is used for
1034 the MAX and MIN intrinsics which can have an arbitrary number of
1035 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1036 these have special semantics. */
1041 try (*f1)(struct gfc_expr *);
1042 try (*f1m)(gfc_actual_arglist *);
1043 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1044 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1045 try (*f3ml)(gfc_actual_arglist *);
1046 try (*f3red)(gfc_actual_arglist *);
1047 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1049 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1050 struct gfc_expr *, struct gfc_expr *);
1054 /* Like gfc_check_f, these specify the type of the simplification
1055 function associated with an intrinsic. The fX are just like in
1056 gfc_check_f. cc is used for type conversion functions. */
1060 struct gfc_expr *(*f0)(void);
1061 struct gfc_expr *(*f1)(struct gfc_expr *);
1062 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1063 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1065 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1066 struct gfc_expr *, struct gfc_expr *);
1067 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1068 struct gfc_expr *, struct gfc_expr *,
1070 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1074 /* Again like gfc_check_f, these specify the type of the resolution
1075 function associated with an intrinsic. The fX are just like in
1076 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort().
1081 void (*f0)(struct gfc_expr *);
1082 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1083 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1084 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1085 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1087 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1088 struct gfc_expr *, struct gfc_expr *);
1089 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1090 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1091 void (*s1)(struct gfc_code *);
1096 typedef struct gfc_intrinsic_sym
1098 const char *name, *lib_name;
1099 gfc_intrinsic_arg *formal;
1101 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1103 gfc_simplify_f simplify;
1105 gfc_resolve_f resolve;
1106 struct gfc_intrinsic_sym *specific_head, *next;
1107 gfc_generic_isym_id generic_id;
1113 /* Expression nodes. The expression node types deserve explanations,
1114 since the last couple can be easily misconstrued:
1116 EXPR_OP Operator node pointing to one or two other nodes
1117 EXPR_FUNCTION Function call, symbol points to function's name
1118 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1119 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1120 which expresses structure, array and substring refs.
1121 EXPR_NULL The NULL pointer value (which also has a basic type).
1122 EXPR_SUBSTRING A substring of a constant string
1123 EXPR_STRUCTURE A structure constructor
1124 EXPR_ARRAY An array constructor. */
1128 #define GFC_RND_MODE GMP_RNDN
1130 typedef struct gfc_expr
1134 gfc_typespec ts; /* These two refer to the overall expression */
1137 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1139 /* Nonnull for functions and structure constructors */
1140 gfc_symtree *symtree;
1146 /* True if it is converted from Hollerith constant. */
1147 unsigned int from_H : 1;
1148 /* True if the expression is a call to a function that returns an array,
1149 and if we have decided not to allocate temporary data for that array. */
1150 unsigned int inline_noncopying_intrinsic : 1;
1167 gfc_intrinsic_op operator;
1169 struct gfc_expr *op1, *op2;
1175 gfc_actual_arglist *actual;
1176 const char *name; /* Points to the ultimate name of the function */
1177 gfc_intrinsic_sym *isym;
1189 struct gfc_constructor *constructor;
1197 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1199 /* Structures for information associated with different kinds of
1200 numbers. The first set of integer parameters define all there is
1201 to know about a particular kind. The rest of the elements are
1202 computed from the first elements. */
1206 /* Values really representable by the target. */
1207 mpz_t huge, pedantic_min_int, min_int, max_int;
1209 int kind, radix, digits, bit_size, range;
1211 /* True if the C type of the given name maps to this precision.
1212 Note that more than one bit can be set. */
1213 unsigned int c_char : 1;
1214 unsigned int c_short : 1;
1215 unsigned int c_int : 1;
1216 unsigned int c_long : 1;
1217 unsigned int c_long_long : 1;
1221 extern gfc_integer_info gfc_integer_kinds[];
1228 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1229 unsigned int c_bool : 1;
1233 extern gfc_logical_info gfc_logical_kinds[];
1238 mpfr_t epsilon, huge, tiny, subnormal;
1239 int kind, radix, digits, min_exponent, max_exponent;
1240 int range, precision;
1242 /* The precision of the type as reported by GET_MODE_PRECISION. */
1245 /* True if the C type of the given name maps to this precision.
1246 Note that more than one bit can be set. */
1247 unsigned int c_float : 1;
1248 unsigned int c_double : 1;
1249 unsigned int c_long_double : 1;
1253 extern gfc_real_info gfc_real_kinds[];
1256 /* Equivalence structures. Equivalent lvalues are linked along the
1257 *eq pointer, equivalence sets are strung along the *next node. */
1258 typedef struct gfc_equiv
1260 struct gfc_equiv *next, *eq;
1267 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1270 /* gfc_case stores the selector list of a case statement. The *low
1271 and *high pointers can point to the same expression in the case of
1272 a single value. If *high is NULL, the selection is from *low
1273 upwards, if *low is NULL the selection is *high downwards.
1275 This structure has separate fields to allow single and double linked
1276 lists of CASEs at the same time. The singe linked list along the NEXT
1277 field is a list of cases for a single CASE label. The double linked
1278 list along the LEFT/RIGHT fields is used to detect overlap and to
1279 build a table of the cases for SELECT constructs with a CHARACTER
1282 typedef struct gfc_case
1284 /* Where we saw this case. */
1288 /* Case range values. If (low == high), it's a single value. If one of
1289 the labels is NULL, it's an unbounded case. If both are NULL, this
1290 represents the default case. */
1291 gfc_expr *low, *high;
1293 /* Next case label in the list of cases for a single CASE label. */
1294 struct gfc_case *next;
1296 /* Used for detecting overlap, and for code generation. */
1297 struct gfc_case *left, *right;
1299 /* True if this case label can never be matched. */
1304 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1309 gfc_expr *var, *start, *end, *step;
1313 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1316 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1318 typedef struct gfc_alloc
1321 struct gfc_alloc *next;
1325 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1330 gfc_expr *unit, *file, *status, *access, *form, *recl,
1331 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1339 gfc_expr *unit, *status, *iostat, *iomsg;
1347 gfc_expr *unit, *iostat, *iomsg;
1355 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1356 *name, *access, *sequential, *direct, *form, *formatted,
1357 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1358 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert;
1368 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1370 gfc_symbol *namelist;
1371 /* A format_label of `format_asterisk' indicates the "*" format */
1372 gfc_st_label *format_label;
1373 gfc_st_label *err, *end, *eor;
1375 locus eor_where, end_where, err_where;
1380 typedef struct gfc_forall_iterator
1382 gfc_expr *var, *start, *end, *stride;
1383 struct gfc_forall_iterator *next;
1385 gfc_forall_iterator;
1388 /* Executable statements that fill gfc_code structures. */
1391 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1392 EXEC_GOTO, EXEC_CALL, EXEC_RETURN, EXEC_ENTRY,
1393 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE,
1394 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1395 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1396 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1397 EXEC_OPEN, EXEC_CLOSE,
1398 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1399 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH
1403 typedef struct gfc_code
1407 struct gfc_code *block, *next;
1410 gfc_st_label *here, *label, *label2, *label3;
1411 gfc_symtree *symtree;
1412 gfc_expr *expr, *expr2;
1413 /* A name isn't sufficient to identify a subroutine, we need the actual
1414 symbol for the interface definition.
1415 const char *sub_name; */
1416 gfc_symbol *resolved_sym;
1420 gfc_actual_arglist *actual;
1421 gfc_case *case_list;
1422 gfc_iterator *iterator;
1423 gfc_alloc *alloc_list;
1426 gfc_filepos *filepos;
1427 gfc_inquire *inquire;
1429 gfc_forall_iterator *forall_iterator;
1430 struct gfc_code *whichloop;
1432 gfc_entry_list *entry;
1434 ext; /* Points to additional structures required by statement */
1436 /* Backend_decl is used for cycle and break labels in do loops, and
1437 probably for other constructs as well, once we translate them. */
1443 /* Storage for DATA statements. */
1444 typedef struct gfc_data_variable
1448 struct gfc_data_variable *list, *next;
1453 typedef struct gfc_data_value
1455 unsigned int repeat;
1457 struct gfc_data_value *next;
1462 typedef struct gfc_data
1464 gfc_data_variable *var;
1465 gfc_data_value *value;
1468 struct gfc_data *next;
1472 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1473 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1474 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1477 /* Structure for holding compile options */
1481 gfc_source_form source_form;
1482 /* When fixed_line_length or free_line_length are 0, the whole line is used.
1484 Default is -1, the maximum line length mandated by the respective source
1486 for FORM_FREE GFC_MAX_LINE (132)
1489 If fixed_line_length or free_line_length is not 0 nor -1 then the user has
1490 requested a specific line-length.
1492 If the user requests a fixed_line_length <7 then gfc_init_options()
1493 emits a fatal error. */
1494 int fixed_line_length; /* maximum line length in fixed-form. */
1495 int free_line_length; /* maximum line length in free-form. */
1496 int max_identifier_length;
1500 int warn_conversion;
1501 int warn_implicit_interface;
1502 int warn_line_truncation;
1504 int warn_surprising;
1505 int warn_unused_labels;
1507 int flag_default_double;
1508 int flag_default_integer;
1509 int flag_default_real;
1511 int flag_underscoring;
1512 int flag_second_underscore;
1513 int flag_implicit_none;
1514 int flag_max_stack_var_size;
1515 int flag_module_access_private;
1516 int flag_no_backend;
1517 int flag_pack_derived;
1518 int flag_repack_arrays;
1522 int flag_cray_pointer;
1531 int warn_nonstd_intrinsics;
1536 extern gfc_option_t gfc_option;
1539 /* Constructor nodes for array and structure constructors. */
1540 typedef struct gfc_constructor
1543 gfc_iterator *iterator;
1545 struct gfc_constructor *next;
1548 mpz_t offset; /* Record the offset of array element which appears in
1549 data statement like "data a(5)/4/". */
1550 gfc_component *component; /* Record the component being initialized. */
1553 mpz_t repeat; /* Record the repeat number of initial values in data
1554 statement like "data a/5*10/". */
1559 typedef struct iterator_stack
1561 gfc_symtree *variable;
1563 struct iterator_stack *prev;
1566 extern iterator_stack *iter_stack;
1568 /************************ Function prototypes *************************/
1571 void gfc_formalize_init_value (gfc_symbol *);
1572 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1573 void gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1574 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1575 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1578 void gfc_scanner_done_1 (void);
1579 void gfc_scanner_init_1 (void);
1581 void gfc_add_include_path (const char *);
1582 void gfc_release_include_path (void);
1583 FILE *gfc_open_included_file (const char *, bool);
1585 int gfc_at_end (void);
1586 int gfc_at_eof (void);
1587 int gfc_at_bol (void);
1588 int gfc_at_eol (void);
1589 void gfc_advance_line (void);
1590 int gfc_check_include (void);
1592 void gfc_skip_comments (void);
1593 int gfc_next_char_literal (int);
1594 int gfc_next_char (void);
1595 int gfc_peek_char (void);
1596 void gfc_error_recovery (void);
1597 void gfc_gobble_whitespace (void);
1598 try gfc_new_file (void);
1600 extern gfc_source_form gfc_current_form;
1601 extern const char *gfc_source_file;
1602 extern locus gfc_current_locus;
1605 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1606 void gfc_free (void *);
1607 int gfc_terminal_width(void);
1608 void gfc_clear_ts (gfc_typespec *);
1609 FILE *gfc_open_file (const char *);
1610 const char *gfc_basic_typename (bt);
1611 const char *gfc_typename (gfc_typespec *);
1613 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1614 "=" : gfc_code2string (intrinsic_operators, OP))
1616 const char *gfc_code2string (const mstring *, int);
1617 int gfc_string2code (const mstring *, const char *);
1618 const char *gfc_intent_string (sym_intent);
1620 void gfc_init_1 (void);
1621 void gfc_init_2 (void);
1622 void gfc_done_1 (void);
1623 void gfc_done_2 (void);
1626 unsigned int gfc_init_options (unsigned int, const char **);
1627 int gfc_handle_option (size_t, const char *, int);
1628 bool gfc_post_options (const char **);
1631 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1635 typedef struct gfc_error_buf
1638 size_t allocated, index;
1642 void gfc_error_init_1 (void);
1643 void gfc_buffer_error (int);
1645 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1646 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1647 void gfc_clear_warning (void);
1648 void gfc_warning_check (void);
1650 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1651 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1652 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1653 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1654 void gfc_clear_error (void);
1655 int gfc_error_check (void);
1657 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1659 /* A general purpose syntax error. */
1660 #define gfc_syntax_error(ST) \
1661 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
1663 void gfc_push_error (gfc_error_buf *);
1664 void gfc_pop_error (gfc_error_buf *);
1665 void gfc_free_error (gfc_error_buf *);
1667 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
1668 void gfc_status_char (char);
1670 void gfc_get_errors (int *, int *);
1673 void gfc_arith_init_1 (void);
1674 void gfc_arith_done_1 (void);
1675 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
1676 arith gfc_check_integer_range (mpz_t p, int kind);
1679 int gfc_validate_kind (bt, int, bool);
1680 extern int gfc_index_integer_kind;
1681 extern int gfc_default_integer_kind;
1682 extern int gfc_max_integer_kind;
1683 extern int gfc_default_real_kind;
1684 extern int gfc_default_double_kind;
1685 extern int gfc_default_character_kind;
1686 extern int gfc_default_logical_kind;
1687 extern int gfc_default_complex_kind;
1688 extern int gfc_c_int_kind;
1691 void gfc_clear_new_implicit (void);
1692 try gfc_add_new_implicit_range (int, int);
1693 try gfc_merge_new_implicit (gfc_typespec *);
1694 void gfc_set_implicit_none (void);
1696 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
1697 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
1699 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
1700 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
1702 void gfc_set_sym_referenced (gfc_symbol * sym);
1704 try gfc_add_attribute (symbol_attribute *, locus *, uint);
1705 try gfc_add_allocatable (symbol_attribute *, locus *);
1706 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
1707 try gfc_add_external (symbol_attribute *, locus *);
1708 try gfc_add_intrinsic (symbol_attribute *, locus *);
1709 try gfc_add_optional (symbol_attribute *, locus *);
1710 try gfc_add_pointer (symbol_attribute *, locus *);
1711 try gfc_add_cray_pointer (symbol_attribute *, locus *);
1712 try gfc_add_cray_pointee (symbol_attribute *, locus *);
1713 try gfc_mod_pointee_as (gfc_array_spec *as);
1714 try gfc_add_result (symbol_attribute *, const char *, locus *);
1715 try gfc_add_save (symbol_attribute *, const char *, locus *);
1716 try gfc_add_saved_common (symbol_attribute *, locus *);
1717 try gfc_add_target (symbol_attribute *, locus *);
1718 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
1719 try gfc_add_generic (symbol_attribute *, const char *, locus *);
1720 try gfc_add_common (symbol_attribute *, locus *);
1721 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
1722 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
1723 try gfc_add_data (symbol_attribute *, const char *, locus *);
1724 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
1725 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
1726 try gfc_add_elemental (symbol_attribute *, locus *);
1727 try gfc_add_pure (symbol_attribute *, locus *);
1728 try gfc_add_recursive (symbol_attribute *, locus *);
1729 try gfc_add_function (symbol_attribute *, const char *, locus *);
1730 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
1732 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
1733 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
1734 try gfc_add_entry (symbol_attribute *, const char *, locus *);
1735 try gfc_add_procedure (symbol_attribute *, procedure_type,
1736 const char *, locus *);
1737 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
1738 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
1739 gfc_formal_arglist *, locus *);
1740 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
1742 void gfc_clear_attr (symbol_attribute *);
1743 try gfc_missing_attr (symbol_attribute *, locus *);
1744 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
1746 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
1747 gfc_symbol *gfc_use_derived (gfc_symbol *);
1748 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
1749 gfc_component *gfc_find_component (gfc_symbol *, const char *);
1751 gfc_st_label *gfc_get_st_label (int);
1752 void gfc_free_st_label (gfc_st_label *);
1753 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
1754 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
1756 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
1757 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
1758 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
1759 gfc_user_op *gfc_get_uop (const char *);
1760 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
1761 void gfc_free_symbol (gfc_symbol *);
1762 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
1763 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
1764 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
1765 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
1766 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
1767 int gfc_get_ha_symbol (const char *, gfc_symbol **);
1768 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
1770 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
1772 void gfc_undo_symbols (void);
1773 void gfc_commit_symbols (void);
1774 void gfc_commit_symbol (gfc_symbol * sym);
1775 void gfc_free_namespace (gfc_namespace *);
1777 void gfc_symbol_init_2 (void);
1778 void gfc_symbol_done_2 (void);
1780 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
1781 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
1782 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
1783 void gfc_save_all (gfc_namespace *);
1785 void gfc_symbol_state (void);
1787 gfc_gsymbol *gfc_get_gsymbol (const char *);
1788 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
1791 extern int gfc_init_expr;
1793 /* Given a symbol that we have decided is intrinsic, mark it as such
1794 by placing it into a special module that is otherwise impossible to
1797 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
1799 void gfc_intrinsic_init_1 (void);
1800 void gfc_intrinsic_done_1 (void);
1802 char gfc_type_letter (bt);
1803 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
1804 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
1805 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
1806 int gfc_generic_intrinsic (const char *);
1807 int gfc_specific_intrinsic (const char *);
1808 int gfc_intrinsic_name (const char *, int);
1809 gfc_intrinsic_sym *gfc_find_function (const char *);
1811 match gfc_intrinsic_func_interface (gfc_expr *, int);
1812 match gfc_intrinsic_sub_interface (gfc_code *, int);
1815 void gfc_simplify_init_1 (void);
1817 /* match.c -- FIXME */
1818 void gfc_free_iterator (gfc_iterator *, int);
1819 void gfc_free_forall_iterator (gfc_forall_iterator *);
1820 void gfc_free_alloc_list (gfc_alloc *);
1821 void gfc_free_namelist (gfc_namelist *);
1822 void gfc_free_equiv (gfc_equiv *);
1823 void gfc_free_data (gfc_data *);
1824 void gfc_free_case_list (gfc_case *);
1827 void gfc_free_actual_arglist (gfc_actual_arglist *);
1828 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
1829 const char *gfc_extract_int (gfc_expr *, int *);
1831 gfc_expr *gfc_build_conversion (gfc_expr *);
1832 void gfc_free_ref_list (gfc_ref *);
1833 void gfc_type_convert_binary (gfc_expr *);
1834 int gfc_is_constant_expr (gfc_expr *);
1835 try gfc_simplify_expr (gfc_expr *, int);
1836 int gfc_has_vector_index (gfc_expr *);
1838 gfc_expr *gfc_get_expr (void);
1839 void gfc_free_expr (gfc_expr *);
1840 void gfc_replace_expr (gfc_expr *, gfc_expr *);
1841 gfc_expr *gfc_int_expr (int);
1842 gfc_expr *gfc_logical_expr (int, locus *);
1843 mpz_t *gfc_copy_shape (mpz_t *, int);
1844 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
1845 gfc_expr *gfc_copy_expr (gfc_expr *);
1847 try gfc_specification_expr (gfc_expr *);
1849 int gfc_numeric_ts (gfc_typespec *);
1850 int gfc_kind_max (gfc_expr *, gfc_expr *);
1852 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
1853 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
1854 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
1855 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
1857 gfc_expr *gfc_default_initializer (gfc_typespec *);
1858 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
1860 void gfc_expr_set_symbols_referenced (gfc_expr * expr);
1863 extern gfc_code new_st;
1865 void gfc_clear_new_st (void);
1866 gfc_code *gfc_get_code (void);
1867 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
1868 void gfc_free_statement (gfc_code *);
1869 void gfc_free_statements (gfc_code *);
1872 try gfc_resolve_expr (gfc_expr *);
1873 void gfc_resolve (gfc_namespace *);
1874 int gfc_impure_variable (gfc_symbol *);
1875 int gfc_pure (gfc_symbol *);
1876 int gfc_elemental (gfc_symbol *);
1877 try gfc_resolve_iterator (gfc_iterator *, bool);
1878 try gfc_resolve_index (gfc_expr *, int);
1879 try gfc_resolve_dim_arg (gfc_expr *);
1880 int gfc_is_formal_arg (void);
1883 void gfc_free_array_spec (gfc_array_spec *);
1884 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
1886 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
1887 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
1888 try gfc_resolve_array_spec (gfc_array_spec *, int);
1890 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
1892 gfc_expr *gfc_start_constructor (bt, int, locus *);
1893 void gfc_append_constructor (gfc_expr *, gfc_expr *);
1894 void gfc_free_constructor (gfc_constructor *);
1895 void gfc_simplify_iterator_var (gfc_expr *);
1896 try gfc_expand_constructor (gfc_expr *);
1897 int gfc_constant_ac (gfc_expr *);
1898 int gfc_expanded_ac (gfc_expr *);
1899 try gfc_resolve_array_constructor (gfc_expr *);
1900 try gfc_check_constructor_type (gfc_expr *);
1901 try gfc_check_iter_variable (gfc_expr *);
1902 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
1903 gfc_constructor *gfc_copy_constructor (gfc_constructor * src);
1904 gfc_expr *gfc_get_array_element (gfc_expr *, int);
1905 try gfc_array_size (gfc_expr *, mpz_t *);
1906 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
1907 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
1908 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
1909 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
1910 gfc_constructor *gfc_get_constructor (void);
1911 tree gfc_conv_array_initializer (tree type, gfc_expr * expr);
1912 try spec_size (gfc_array_spec *, mpz_t *);
1913 int gfc_is_compile_time_shape (gfc_array_spec *);
1915 /* interface.c -- FIXME: some of these should be in symbol.c */
1916 void gfc_free_interface (gfc_interface *);
1917 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
1918 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
1919 void gfc_check_interfaces (gfc_namespace *);
1920 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
1921 gfc_symbol *gfc_search_interface (gfc_interface *, int,
1922 gfc_actual_arglist **);
1923 try gfc_extend_expr (gfc_expr *);
1924 void gfc_free_formal_arglist (gfc_formal_arglist *);
1925 try gfc_extend_assign (gfc_code *, gfc_namespace *);
1926 try gfc_add_interface (gfc_symbol * sym);
1929 extern gfc_st_label format_asterisk;
1931 void gfc_free_open (gfc_open *);
1932 try gfc_resolve_open (gfc_open *);
1933 void gfc_free_close (gfc_close *);
1934 try gfc_resolve_close (gfc_close *);
1935 void gfc_free_filepos (gfc_filepos *);
1936 try gfc_resolve_filepos (gfc_filepos *);
1937 void gfc_free_inquire (gfc_inquire *);
1938 try gfc_resolve_inquire (gfc_inquire *);
1939 void gfc_free_dt (gfc_dt *);
1940 try gfc_resolve_dt (gfc_dt *);
1943 void gfc_module_init_2 (void);
1944 void gfc_module_done_2 (void);
1945 void gfc_dump_module (const char *, int);
1946 bool gfc_check_access (gfc_access, gfc_access);
1949 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
1950 symbol_attribute gfc_expr_attr (gfc_expr *);
1953 void gfc_generate_code (gfc_namespace *);
1954 void gfc_generate_module_code (gfc_namespace *);
1957 typedef int (*compare_fn) (void *, void *);
1958 void gfc_insert_bbt (void *, void *, compare_fn);
1959 void gfc_delete_bbt (void *, void *, compare_fn);
1961 /* dump-parse-tree.c */
1962 void gfc_show_namespace (gfc_namespace *);
1965 try gfc_parse_file (void);
1966 void global_used (gfc_gsymbol *, locus *);
1968 #endif /* GCC_GFORTRAN_H */