1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, 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 COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 #ifndef GCC_GFORTRAN_H
23 #define GCC_GFORTRAN_H
25 /* It's probably insane to have this large of a header file, but it
26 seemed like everything had to be recompiled anyway when a change
27 was made to a header file, and there were ordering issues with
28 multiple header files. Besides, Microsoft's winnt.h was 250k last
29 time I looked, so by comparison this is perfectly reasonable. */
31 /* Declarations common to the front-end and library are put in
32 libgfortran/libgfortran_frontend.h */
33 #include "libgfortran.h"
38 #include "coretypes.h"
40 #include "splay-tree.h"
41 /* The following ifdefs are recommended by the autoconf documentation
42 for any code using alloca. */
44 /* AIX requires this to be the first thing in the file. */
46 #else /* not __GNUC__ */
49 #else /* do not HAVE_ALLOCA_H */
53 #ifndef alloca /* predefined by HP cc +Olibcalls */
55 #endif /* not predefined */
57 #endif /* do not HAVE_ALLOCA_H */
58 #endif /* not __GNUC__ */
60 /* Major control parameters. */
62 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
63 #define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */
64 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
65 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
67 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
70 #define free(x) Use_gfc_free_instead_of_free()
71 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
74 #define NULL ((void *) 0)
78 #define stringize(x) expand_macro(x)
79 #define expand_macro(x) # x
81 /* For a the runtime library, a standard prefix is a requirement to
82 avoid cluttering the namespace with things nobody asked for. It's
83 ugly to look at and a pain to type when you add the prefix by hand,
84 so we hide it behind a macro. */
85 #define PREFIX(x) "_gfortran_" x
88 #define BLANK_COMMON_NAME "__BLNK__"
90 /* Macro to initialize an mstring structure. */
91 #define minit(s, t) { s, NULL, t }
93 /* Structure for storing strings to be matched by gfc_match_string. */
104 /*************************** Enums *****************************/
106 /* The author remains confused to this day about the convention of
107 returning '0' for 'SUCCESS'... or was it the other way around? The
108 following enum makes things much more readable. We also start
109 values off at one instead of zero. */
112 { SUCCESS = 1, FAILURE }
115 /* This is returned by gfc_notification_std to know if, given the flags
116 that were given (-std=, -pedantic) we should issue an error, a warning
120 { SILENT, WARNING, ERROR }
123 /* Matchers return one of these three values. The difference between
124 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
125 successful, but that something non-syntactic is wrong and an error
126 has already been issued. */
129 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
133 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
136 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer
137 can take any arg with the pointer attribute as a param. */
139 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
140 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 /* ==, /=, >, >=, <, <= */
178 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
179 INTRINSIC_LT, INTRINSIC_LE,
180 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
181 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
182 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
183 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
184 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
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_IMPORT, 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,
218 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
219 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
220 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
221 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
222 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
223 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
224 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
225 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_PROCEDURE,
231 /* Types of interfaces that we can have. Assignment interfaces are
232 considered to be intrinsic operators. */
235 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
236 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
240 /* Symbol flavors: these are all mutually exclusive.
241 10 elements = 4 bits. */
242 typedef enum sym_flavor
244 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
245 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
250 /* Procedure types. 7 elements = 3 bits. */
251 typedef enum procedure_type
252 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
253 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
258 typedef enum sym_intent
259 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
264 typedef enum gfc_access
265 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
269 /* Flags to keep track of where an interface came from.
270 4 elements = 2 bits. */
272 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
276 /* Whether a SAVE attribute was set explicitly or implicitly. */
277 typedef enum save_state
278 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
282 /* Strings for all symbol attributes. We use these for dumping the
283 parse tree, in error messages, and also when reading and writing
284 modules. In symbol.c. */
285 extern const mstring flavors[];
286 extern const mstring procedures[];
287 extern const mstring intents[];
288 extern const mstring access_types[];
289 extern const mstring ifsrc_types[];
290 extern const mstring save_status[];
292 /* Enumeration of all the generic intrinsic functions. Used by the
293 backend for identification of a function. */
297 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
298 the backend (eg. KIND). */
329 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
339 GFC_ISYM_DATE_AND_TIME,
343 GFC_ISYM_DOT_PRODUCT,
370 GFC_ISYM_GET_COMMAND,
371 GFC_ISYM_GET_COMMAND_ARGUMENT,
374 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
399 GFC_ISYM_IS_IOSTAT_END,
400 GFC_ISYM_IS_IOSTAT_EOR,
430 GFC_ISYM_MAXEXPONENT,
437 GFC_ISYM_MINEXPONENT,
457 GFC_ISYM_RANDOM_NUMBER,
458 GFC_ISYM_RANDOM_SEED,
470 GFC_ISYM_SET_EXPONENT,
490 GFC_ISYM_SYSTEM_CLOCK,
510 typedef enum gfc_isym_id gfc_isym_id;
515 GFC_INIT_REAL_OFF = 0,
519 GFC_INIT_REAL_NEG_INF
525 GFC_INIT_LOGICAL_OFF = 0,
526 GFC_INIT_LOGICAL_FALSE,
527 GFC_INIT_LOGICAL_TRUE
533 GFC_INIT_CHARACTER_OFF = 0,
534 GFC_INIT_CHARACTER_ON
536 init_local_character;
540 GFC_INIT_INTEGER_OFF = 0,
545 /************************* Structures *****************************/
547 /* Used for keeping things in balanced binary trees. */
548 #define BBT_HEADER(self) int priority; struct self *left, *right
550 #define NAMED_INTCST(a,b,c) a,
553 ISOFORTRANENV_INVALID = -1,
554 #include "iso-fortran-env.def"
555 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
557 iso_fortran_env_symbol;
560 #define NAMED_INTCST(a,b,c) a,
561 #define NAMED_REALCST(a,b,c) a,
562 #define NAMED_CMPXCST(a,b,c) a,
563 #define NAMED_LOGCST(a,b,c) a,
564 #define NAMED_CHARKNDCST(a,b,c) a,
565 #define NAMED_CHARCST(a,b,c) a,
566 #define DERIVED_TYPE(a,b,c) a,
567 #define PROCEDURE(a,b) a,
570 ISOCBINDING_INVALID = -1,
571 #include "iso-c-binding.def"
573 ISOCBINDING_NUMBER = ISOCBINDING_LAST
575 iso_c_binding_symbol;
580 #undef NAMED_CHARKNDCST
587 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
593 char name[GFC_MAX_SYMBOL_LEN + 1];
594 int value; /* Used for both integer and character values. */
599 /* Array of structs, where the structs represent the C interop kinds.
600 The list will be implemented based on a hash of the kind name since
601 these could be accessed multiple times.
602 Declared in trans-types.c as a global, since it's in that file
603 that the list is initialized. */
604 extern CInteropKind_t c_interop_kinds_table[];
606 /* Symbol attribute structure. */
609 /* Variable attributes. */
610 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
611 optional:1, pointer:1, target:1, value:1, volatile_:1,
612 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
613 implied_index:1, subref_array_pointer:1;
615 ENUM_BITFIELD (save_state) save:2;
617 unsigned data:1, /* Symbol is named in a DATA statement. */
618 protected:1, /* Symbol has been marked as protected. */
619 use_assoc:1, /* Symbol has been use-associated. */
620 use_only:1, /* Symbol has been use-associated, with ONLY. */
621 imported:1; /* Symbol has been associated by IMPORT. */
623 unsigned in_namelist:1, in_common:1, in_equivalence:1;
624 unsigned function:1, subroutine:1, procedure:1;
625 unsigned generic:1, generic_copy:1;
626 unsigned implicit_type:1; /* Type defined via implicit rules. */
627 unsigned untyped:1; /* No implicit type could be found. */
629 unsigned is_bind_c:1; /* say if is bound to C */
631 /* These flags are both in the typespec and attribute. The attribute
632 list is what gets read from/written to a module file. The typespec
633 is created from a decl being processed. */
634 unsigned is_c_interop:1; /* It's c interoperable. */
635 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
637 /* Function/subroutine attributes */
638 unsigned sequence:1, elemental:1, pure:1, recursive:1;
639 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
641 /* This is set if the subroutine doesn't return. Currently, this
642 is only possible for intrinsic subroutines. */
645 /* Set if this procedure is an alternate entry point. These procedures
646 don't have any code associated, and the backend will turn them into
647 thunks to the master function. */
650 /* Set if this is the master function for a procedure with multiple
652 unsigned entry_master:1;
654 /* Set if this is the master function for a function with multiple
655 entry points where characteristics of the entry points differ. */
656 unsigned mixed_entry_master:1;
658 /* Set if a function must always be referenced by an explicit interface. */
659 unsigned always_explicit:1;
661 /* Set if the symbol has been referenced in an expression. No further
662 modification of type or type parameters is permitted. */
663 unsigned referenced:1;
665 /* Set if the symbol has ambiguous interfaces. */
666 unsigned ambiguous_interfaces:1;
668 /* Set if the is the symbol for the main program. This is the least
669 cumbersome way to communicate this function property without
670 strcmp'ing with __MAIN everywhere. */
671 unsigned is_main_program:1;
673 /* Mutually exclusive multibit attributes. */
674 ENUM_BITFIELD (gfc_access) access:2;
675 ENUM_BITFIELD (sym_intent) intent:2;
676 ENUM_BITFIELD (sym_flavor) flavor:4;
677 ENUM_BITFIELD (ifsrc) if_source:2;
679 ENUM_BITFIELD (procedure_type) proc:3;
681 /* Special attributes for Cray pointers, pointees. */
682 unsigned cray_pointer:1, cray_pointee:1;
684 /* The symbol is a derived type with allocatable components, pointer
685 components or private components, possibly nested. zer_comp
686 is true if the derived type has no component at all. */
687 unsigned alloc_comp:1, pointer_comp:1, private_comp:1, zero_comp:1;
689 /* The namespace where the VOLATILE attribute has been set. */
690 struct gfc_namespace *volatile_ns;
695 /* The following three structures are used to identify a location in
698 gfc_file is used to maintain a tree of the source files and how
699 they include each other
701 gfc_linebuf holds a single line of source code and information
702 which file it resides in
704 locus point to the sourceline and the character in the source
708 typedef struct gfc_file
710 struct gfc_file *included_by, *next, *up;
711 int inclusion_line, line;
715 typedef struct gfc_linebuf
717 #ifdef USE_MAPPED_LOCATION
718 source_location location;
722 struct gfc_file *file;
723 struct gfc_linebuf *next;
730 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
732 #ifdef USE_MAPPED_LOCATION
733 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
735 #define gfc_linebuf_linenum(LBUF) ((LBUF)->linenum)
744 /* In order for the "gfc" format checking to work correctly, you must
745 have declared a typedef locus first. */
746 #if GCC_VERSION >= 4001
747 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
749 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
753 extern int gfc_suppress_error;
756 /* Character length structures hold the expression that gives the
757 length of a character variable. We avoid putting these into
758 gfc_typespec because doing so prevents us from doing structure
759 copies and forces us to deallocate any typespecs we create, as well
760 as structures that contain typespecs. They also can have multiple
761 character typespecs pointing to them.
763 These structures form a singly linked list within the current
764 namespace and are deallocated with the namespace. It is possible to
765 end up with gfc_charlen structures that have nothing pointing to them. */
767 typedef struct gfc_charlen
769 struct gfc_expr *length;
770 struct gfc_charlen *next;
777 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
779 /* Type specification structure. FIXME: derived and cl could be union??? */
784 struct gfc_symbol *derived;
785 gfc_charlen *cl; /* For character types only. */
792 /* Array specification. */
795 int rank; /* A rank of zero means that a variable is a scalar. */
797 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
799 /* These two fields are used with the Cray Pointer extension. */
800 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
801 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
802 AS_EXPLICIT, but we want to remember that we
808 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
811 /* Components of derived types. */
812 typedef struct gfc_component
817 int pointer, allocatable, dimension;
823 struct gfc_expr *initializer;
824 struct gfc_component *next;
828 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
830 /* Formal argument lists are lists of symbols. */
831 typedef struct gfc_formal_arglist
833 /* Symbol representing the argument at this position in the arglist. */
834 struct gfc_symbol *sym;
835 /* Points to the next formal argument. */
836 struct gfc_formal_arglist *next;
840 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
843 /* The gfc_actual_arglist structure is for actual arguments. */
844 typedef struct gfc_actual_arglist
847 /* Alternate return label when the expr member is null. */
848 struct gfc_st_label *label;
850 /* This is set to the type of an eventual omitted optional
851 argument. This is used to determine if a hidden string length
852 argument has to be added to a function call. */
855 struct gfc_expr *expr;
856 struct gfc_actual_arglist *next;
860 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
863 /* Because a symbol can belong to multiple namelists, they must be
864 linked externally to the symbol itself. */
865 typedef struct gfc_namelist
867 struct gfc_symbol *sym;
868 struct gfc_namelist *next;
872 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
877 OMP_LIST_FIRSTPRIVATE,
878 OMP_LIST_LASTPRIVATE,
879 OMP_LIST_COPYPRIVATE,
883 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
895 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
899 /* Because a symbol can belong to multiple namelists, they must be
900 linked externally to the symbol itself. */
901 typedef struct gfc_omp_clauses
903 struct gfc_expr *if_expr;
904 struct gfc_expr *num_threads;
905 gfc_namelist *lists[OMP_LIST_NUM];
914 struct gfc_expr *chunk_size;
922 bool nowait, ordered;
926 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
929 /* The gfc_st_label structure is a doubly linked list attached to a
930 namespace that records the usage of statement labels within that
932 /* TODO: Make format/statement specifics a union. */
933 typedef struct gfc_st_label
935 BBT_HEADER(gfc_st_label);
939 gfc_sl_type defined, referenced;
941 struct gfc_expr *format;
950 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
951 typedef struct gfc_interface
953 struct gfc_symbol *sym;
955 struct gfc_interface *next;
959 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
962 /* User operator nodes. These are like stripped down symbols. */
967 gfc_interface *operator;
968 struct gfc_namespace *ns;
973 /* Symbol nodes. These are important things. They are what the
974 standard refers to as "entities". The possibly multiple names that
975 refer to the same entity are accomplished by a binary tree of
976 symtree structures that is balanced by the red-black method-- more
977 than one symtree node can point to any given symbol. */
979 typedef struct gfc_symbol
981 const char *name; /* Primary name, before renaming */
982 const char *module; /* Module this symbol came from */
986 symbol_attribute attr;
988 /* The interface member points to the formal argument list if the
989 symbol is a function or subroutine name. If the symbol is a
990 generic name, the generic member points to the list of
993 gfc_interface *generic;
994 gfc_access component_access;
996 gfc_formal_arglist *formal;
997 struct gfc_namespace *formal_ns;
999 struct gfc_expr *value; /* Parameter/Initializer value */
1001 struct gfc_symbol *result; /* function result symbol */
1002 gfc_component *components; /* Derived type components */
1004 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
1006 /* Defined only for Cray pointees; points to their pointer. */
1007 struct gfc_symbol *cp_pointer;
1009 struct gfc_symbol *common_next; /* Links for COMMON syms */
1011 /* This is in fact a gfc_common_head but it is only used for pointer
1012 comparisons to check if symbols are in the same common block. */
1013 struct gfc_common_head* common_head;
1015 /* Make sure setup code for dummy arguments is generated in the correct
1021 gfc_namelist *namelist, *namelist_tail;
1023 /* Change management fields. Symbols that might be modified by the
1024 current statement have the mark member nonzero and are kept in a
1025 singly linked list through the tlink field. Of these symbols,
1026 symbols with old_symbol equal to NULL are symbols created within
1027 the current statement. Otherwise, old_symbol points to a copy of
1030 struct gfc_symbol *old_symbol, *tlink;
1031 unsigned mark:1, new:1;
1032 /* Nonzero if all equivalences associated with this symbol have been
1034 unsigned equiv_built:1;
1035 /* Set if this variable is used as an index name in a FORALL. */
1036 unsigned forall_index:1;
1038 struct gfc_namespace *ns; /* namespace containing this symbol */
1042 /* Identity of the intrinsic module the symbol comes from, or
1043 INTMOD_NONE if it's not imported from a intrinsic module. */
1044 intmod_id from_intmod;
1045 /* Identity of the symbol from intrinsic modules, from enums maintained
1046 separately by each intrinsic module. Used together with from_intmod,
1047 it uniquely identifies a symbol from an intrinsic module. */
1050 /* This may be repetitive, since the typespec now has a binding
1052 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1053 /* Store a reference to the common_block, if this symbol is in one. */
1054 struct gfc_common_head *common_block;
1059 /* This structure is used to keep track of symbols in common blocks. */
1060 typedef struct gfc_common_head
1063 char use_assoc, saved, threadprivate;
1064 char name[GFC_MAX_SYMBOL_LEN + 1];
1065 struct gfc_symbol *head;
1066 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1071 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
1074 /* A list of all the alternate entry points for a procedure. */
1076 typedef struct gfc_entry_list
1078 /* The symbol for this entry point. */
1080 /* The zero-based id of this entry point. */
1082 /* The LABEL_EXPR marking this entry point. */
1084 /* The nest item in the list. */
1085 struct gfc_entry_list *next;
1089 #define gfc_get_entry_list() \
1090 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1092 /* Within a namespace, symbols are pointed to by symtree nodes that
1093 are linked together in a balanced binary tree. There can be
1094 several symtrees pointing to the same symbol node via USE
1097 typedef struct gfc_symtree
1099 BBT_HEADER (gfc_symtree);
1104 gfc_symbol *sym; /* Symbol associated with this node */
1106 gfc_common_head *common;
1113 /* A linked list of derived types in the namespace. */
1114 typedef struct gfc_dt_list
1116 struct gfc_symbol *derived;
1117 struct gfc_dt_list *next;
1121 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
1123 /* A list of all derived types. */
1124 extern gfc_dt_list *gfc_derived_types;
1126 /* A namespace describes the contents of procedure, module or
1128 /* ??? Anything else use these? */
1130 typedef struct gfc_namespace
1132 /* Tree containing all the symbols in this namespace. */
1133 gfc_symtree *sym_root;
1134 /* Tree containing all the user-defined operators in the namespace. */
1135 gfc_symtree *uop_root;
1136 /* Tree containing all the common blocks. */
1137 gfc_symtree *common_root;
1139 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1140 int set_flag[GFC_LETTERS];
1141 /* Keeps track of the implicit types associated with the letters. */
1142 gfc_typespec default_type[GFC_LETTERS];
1144 /* If this is a namespace of a procedure, this points to the procedure. */
1145 struct gfc_symbol *proc_name;
1146 /* If this is the namespace of a unit which contains executable
1147 code, this points to it. */
1148 struct gfc_code *code;
1150 /* Points to the equivalences set up in this namespace. */
1151 struct gfc_equiv *equiv;
1153 /* Points to the equivalence groups produced by trans_common. */
1154 struct gfc_equiv_list *equiv_lists;
1156 gfc_interface *operator[GFC_INTRINSIC_OPS];
1158 /* Points to the parent namespace, i.e. the namespace of a module or
1159 procedure in which the procedure belonging to this namespace is
1160 contained. The parent namespace points to this namespace either
1161 directly via CONTAINED, or indirectly via the chain built by
1163 struct gfc_namespace *parent;
1164 /* CONTAINED points to the first contained namespace. Sibling
1165 namespaces are chained via SIBLING. */
1166 struct gfc_namespace *contained, *sibling;
1168 gfc_common_head blank_common;
1169 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1171 gfc_st_label *st_labels;
1172 /* This list holds information about all the data initializers in
1174 struct gfc_data *data;
1176 gfc_charlen *cl_list;
1178 int save_all, seen_save, seen_implicit_none;
1180 /* Normally we don't need to refcount namespaces. However when we read
1181 a module containing a function with multiple entry points, this
1182 will appear as several functions with the same formal namespace. */
1185 /* A list of all alternate entry points to this procedure (or NULL). */
1186 gfc_entry_list *entries;
1188 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1191 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1196 extern gfc_namespace *gfc_current_ns;
1198 /* Global symbols are symbols of global scope. Currently we only use
1199 this to detect collisions already when parsing.
1200 TODO: Extend to verify procedure calls. */
1202 typedef struct gfc_gsymbol
1204 BBT_HEADER(gfc_gsymbol);
1207 const char *sym_name;
1208 const char *mod_name;
1209 const char *binding_label;
1210 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1211 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1218 extern gfc_gsymbol *gfc_gsym_root;
1220 /* Information on interfaces being built. */
1223 interface_type type;
1227 gfc_intrinsic_op op;
1231 extern gfc_interface_info current_interface;
1234 /* Array reference. */
1235 typedef struct gfc_array_ref
1238 int dimen; /* # of components in the reference */
1242 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1243 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1244 *stride[GFC_MAX_DIMENSIONS];
1247 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1248 dimen_type[GFC_MAX_DIMENSIONS];
1250 struct gfc_expr *offset;
1254 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1257 /* Component reference nodes. A variable is stored as an expression
1258 node that points to the base symbol. After that, a singly linked
1259 list of component reference nodes gives the variable's complete
1260 resolution. The array_ref component may be present and comes
1261 before the component component. */
1264 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1267 typedef struct gfc_ref
1273 struct gfc_array_ref ar;
1277 gfc_component *component;
1284 struct gfc_expr *start, *end; /* Substring */
1285 gfc_charlen *length;
1292 struct gfc_ref *next;
1296 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1299 /* Structures representing intrinsic symbols and their arguments lists. */
1300 typedef struct gfc_intrinsic_arg
1302 char name[GFC_MAX_SYMBOL_LEN + 1];
1306 gfc_actual_arglist *actual;
1308 struct gfc_intrinsic_arg *next;
1314 /* Specifies the various kinds of check functions used to verify the
1315 argument lists of intrinsic functions. fX with X an integer refer
1316 to check functions of intrinsics with X arguments. f1m is used for
1317 the MAX and MIN intrinsics which can have an arbitrary number of
1318 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1319 these have special semantics. */
1324 try (*f1)(struct gfc_expr *);
1325 try (*f1m)(gfc_actual_arglist *);
1326 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1327 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1328 try (*f3ml)(gfc_actual_arglist *);
1329 try (*f3red)(gfc_actual_arglist *);
1330 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1332 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1333 struct gfc_expr *, struct gfc_expr *);
1337 /* Like gfc_check_f, these specify the type of the simplification
1338 function associated with an intrinsic. The fX are just like in
1339 gfc_check_f. cc is used for type conversion functions. */
1343 struct gfc_expr *(*f0)(void);
1344 struct gfc_expr *(*f1)(struct gfc_expr *);
1345 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1346 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1348 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1349 struct gfc_expr *, struct gfc_expr *);
1350 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1351 struct gfc_expr *, struct gfc_expr *,
1353 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1357 /* Again like gfc_check_f, these specify the type of the resolution
1358 function associated with an intrinsic. The fX are just like in
1359 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1363 void (*f0)(struct gfc_expr *);
1364 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1365 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1366 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1367 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1369 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1370 struct gfc_expr *, struct gfc_expr *);
1371 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1372 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1373 void (*s1)(struct gfc_code *);
1378 typedef struct gfc_intrinsic_sym
1380 const char *name, *lib_name;
1381 gfc_intrinsic_arg *formal;
1383 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1384 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1388 gfc_simplify_f simplify;
1390 gfc_resolve_f resolve;
1391 struct gfc_intrinsic_sym *specific_head, *next;
1398 /* Expression nodes. The expression node types deserve explanations,
1399 since the last couple can be easily misconstrued:
1401 EXPR_OP Operator node pointing to one or two other nodes
1402 EXPR_FUNCTION Function call, symbol points to function's name
1403 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1404 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1405 which expresses structure, array and substring refs.
1406 EXPR_NULL The NULL pointer value (which also has a basic type).
1407 EXPR_SUBSTRING A substring of a constant string
1408 EXPR_STRUCTURE A structure constructor
1409 EXPR_ARRAY An array constructor. */
1413 #define GFC_RND_MODE GMP_RNDN
1415 typedef struct gfc_expr
1419 gfc_typespec ts; /* These two refer to the overall expression */
1422 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1424 /* Nonnull for functions and structure constructors */
1425 gfc_symtree *symtree;
1431 /* True if the expression is a call to a function that returns an array,
1432 and if we have decided not to allocate temporary data for that array. */
1433 unsigned int inline_noncopying_intrinsic : 1;
1435 /* Used to quickly find a given constructor by its offset. */
1436 splay_tree con_by_offset;
1438 /* If an expression comes from a Hollerith constant or compile-time
1439 evaluation of a transfer statement, it may have a prescribed target-
1440 memory representation, and these cannot always be backformed from
1465 gfc_intrinsic_op operator;
1467 struct gfc_expr *op1, *op2;
1473 gfc_actual_arglist *actual;
1474 const char *name; /* Points to the ultimate name of the function */
1475 gfc_intrinsic_sym *isym;
1487 struct gfc_constructor *constructor;
1495 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1497 /* Structures for information associated with different kinds of
1498 numbers. The first set of integer parameters define all there is
1499 to know about a particular kind. The rest of the elements are
1500 computed from the first elements. */
1504 /* Values really representable by the target. */
1505 mpz_t huge, pedantic_min_int, min_int;
1507 int kind, radix, digits, bit_size, range;
1509 /* True if the C type of the given name maps to this precision.
1510 Note that more than one bit can be set. */
1511 unsigned int c_char : 1;
1512 unsigned int c_short : 1;
1513 unsigned int c_int : 1;
1514 unsigned int c_long : 1;
1515 unsigned int c_long_long : 1;
1519 extern gfc_integer_info gfc_integer_kinds[];
1526 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1527 unsigned int c_bool : 1;
1531 extern gfc_logical_info gfc_logical_kinds[];
1536 mpfr_t epsilon, huge, tiny, subnormal;
1537 int kind, radix, digits, min_exponent, max_exponent;
1538 int range, precision;
1540 /* The precision of the type as reported by GET_MODE_PRECISION. */
1543 /* True if the C type of the given name maps to this precision.
1544 Note that more than one bit can be set. */
1545 unsigned int c_float : 1;
1546 unsigned int c_double : 1;
1547 unsigned int c_long_double : 1;
1551 extern gfc_real_info gfc_real_kinds[];
1554 /* Equivalence structures. Equivalent lvalues are linked along the
1555 *eq pointer, equivalence sets are strung along the *next node. */
1556 typedef struct gfc_equiv
1558 struct gfc_equiv *next, *eq;
1565 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1567 /* Holds a single equivalence member after processing. */
1568 typedef struct gfc_equiv_info
1571 HOST_WIDE_INT offset;
1572 HOST_WIDE_INT length;
1573 struct gfc_equiv_info *next;
1576 /* Holds equivalence groups, after they have been processed. */
1577 typedef struct gfc_equiv_list
1579 gfc_equiv_info *equiv;
1580 struct gfc_equiv_list *next;
1583 /* gfc_case stores the selector list of a case statement. The *low
1584 and *high pointers can point to the same expression in the case of
1585 a single value. If *high is NULL, the selection is from *low
1586 upwards, if *low is NULL the selection is *high downwards.
1588 This structure has separate fields to allow single and double linked
1589 lists of CASEs at the same time. The singe linked list along the NEXT
1590 field is a list of cases for a single CASE label. The double linked
1591 list along the LEFT/RIGHT fields is used to detect overlap and to
1592 build a table of the cases for SELECT constructs with a CHARACTER
1595 typedef struct gfc_case
1597 /* Where we saw this case. */
1601 /* Case range values. If (low == high), it's a single value. If one of
1602 the labels is NULL, it's an unbounded case. If both are NULL, this
1603 represents the default case. */
1604 gfc_expr *low, *high;
1606 /* Next case label in the list of cases for a single CASE label. */
1607 struct gfc_case *next;
1609 /* Used for detecting overlap, and for code generation. */
1610 struct gfc_case *left, *right;
1612 /* True if this case label can never be matched. */
1617 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1622 gfc_expr *var, *start, *end, *step;
1626 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1629 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1631 typedef struct gfc_alloc
1634 struct gfc_alloc *next;
1638 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1643 gfc_expr *unit, *file, *status, *access, *form, *recl,
1644 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1652 gfc_expr *unit, *status, *iostat, *iomsg;
1660 gfc_expr *unit, *iostat, *iomsg;
1668 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1669 *name, *access, *sequential, *direct, *form, *formatted,
1670 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1671 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1681 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1683 gfc_symbol *namelist;
1684 /* A format_label of `format_asterisk' indicates the "*" format */
1685 gfc_st_label *format_label;
1686 gfc_st_label *err, *end, *eor;
1688 locus eor_where, end_where, err_where;
1693 typedef struct gfc_forall_iterator
1695 gfc_expr *var, *start, *end, *stride;
1696 struct gfc_forall_iterator *next;
1698 gfc_forall_iterator;
1701 /* Executable statements that fill gfc_code structures. */
1704 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1705 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1706 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1707 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1708 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1709 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1710 EXEC_OPEN, EXEC_CLOSE,
1711 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1712 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1713 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1714 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1715 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1716 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1717 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1722 typedef struct gfc_code
1726 struct gfc_code *block, *next;
1729 gfc_st_label *here, *label, *label2, *label3;
1730 gfc_symtree *symtree;
1731 gfc_expr *expr, *expr2;
1732 /* A name isn't sufficient to identify a subroutine, we need the actual
1733 symbol for the interface definition.
1734 const char *sub_name; */
1735 gfc_symbol *resolved_sym;
1739 gfc_actual_arglist *actual;
1740 gfc_case *case_list;
1741 gfc_iterator *iterator;
1742 gfc_alloc *alloc_list;
1745 gfc_filepos *filepos;
1746 gfc_inquire *inquire;
1748 gfc_forall_iterator *forall_iterator;
1749 struct gfc_code *whichloop;
1751 gfc_entry_list *entry;
1752 gfc_omp_clauses *omp_clauses;
1753 const char *omp_name;
1754 gfc_namelist *omp_namelist;
1757 ext; /* Points to additional structures required by statement */
1759 /* Backend_decl is used for cycle and break labels in do loops, and
1760 probably for other constructs as well, once we translate them. */
1766 /* Storage for DATA statements. */
1767 typedef struct gfc_data_variable
1771 struct gfc_data_variable *list, *next;
1776 typedef struct gfc_data_value
1778 unsigned int repeat;
1780 struct gfc_data_value *next;
1785 typedef struct gfc_data
1787 gfc_data_variable *var;
1788 gfc_data_value *value;
1791 struct gfc_data *next;
1795 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1796 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1797 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1800 /* Structure for holding compile options */
1804 gfc_source_form source_form;
1805 /* Maximum line lengths in fixed- and free-form source, respectively.
1806 When fixed_line_length or free_line_length are 0, the whole line is used,
1807 regardless of length.
1809 If the user requests a fixed_line_length <7 then gfc_init_options()
1810 emits a fatal error. */
1811 int fixed_line_length;
1812 int free_line_length;
1813 /* Maximum number of continuation lines in fixed- and free-form source,
1815 int max_continue_fixed;
1816 int max_continue_free;
1817 int max_identifier_length;
1822 int warn_conversion;
1823 int warn_implicit_interface;
1824 int warn_line_truncation;
1825 int warn_surprising;
1828 int warn_character_truncation;
1831 int flag_all_intrinsics;
1832 int flag_default_double;
1833 int flag_default_integer;
1834 int flag_default_real;
1836 int flag_underscoring;
1837 int flag_second_underscore;
1838 int flag_implicit_none;
1839 int flag_max_stack_var_size;
1840 int flag_range_check;
1841 int flag_pack_derived;
1842 int flag_repack_arrays;
1843 int flag_preprocessed;
1848 int flag_allow_leading_underscore;
1850 int flag_external_blas;
1851 int blas_matmul_limit;
1852 int flag_cray_pointer;
1856 int flag_module_private;
1858 int flag_init_local_zero;
1859 int flag_init_integer;
1860 int flag_init_integer_value;
1862 int flag_init_logical;
1863 int flag_init_character;
1864 char flag_init_character_value;
1870 int warn_nonstd_intrinsics;
1874 int max_subrecord_length;
1878 extern gfc_option_t gfc_option;
1880 /* Constructor nodes for array and structure constructors. */
1881 typedef struct gfc_constructor
1884 gfc_iterator *iterator;
1886 struct gfc_constructor *next;
1889 mpz_t offset; /* Record the offset of array element which appears in
1890 data statement like "data a(5)/4/". */
1891 gfc_component *component; /* Record the component being initialized. */
1894 mpz_t repeat; /* Record the repeat number of initial values in data
1895 statement like "data a/5*10/". */
1900 typedef struct iterator_stack
1902 gfc_symtree *variable;
1904 struct iterator_stack *prev;
1907 extern iterator_stack *iter_stack;
1909 /************************ Function prototypes *************************/
1912 void gfc_formalize_init_value (gfc_symbol *);
1913 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1914 try gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1915 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1916 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1919 bool gfc_in_match_data (void);
1920 void gfc_set_in_match_data (bool);
1923 void gfc_scanner_done_1 (void);
1924 void gfc_scanner_init_1 (void);
1926 void gfc_add_include_path (const char *, bool);
1927 void gfc_add_intrinsic_modules_path (const char *);
1928 void gfc_release_include_path (void);
1929 FILE *gfc_open_included_file (const char *, bool, bool);
1930 FILE *gfc_open_intrinsic_module (const char *);
1932 int gfc_at_end (void);
1933 int gfc_at_eof (void);
1934 int gfc_at_bol (void);
1935 int gfc_at_eol (void);
1936 void gfc_advance_line (void);
1937 int gfc_check_include (void);
1939 void gfc_skip_comments (void);
1940 int gfc_next_char_literal (int);
1941 int gfc_next_char (void);
1942 int gfc_peek_char (void);
1943 void gfc_error_recovery (void);
1944 void gfc_gobble_whitespace (void);
1945 try gfc_new_file (void);
1946 const char * gfc_read_orig_filename (const char *, const char **);
1948 extern gfc_source_form gfc_current_form;
1949 extern const char *gfc_source_file;
1950 extern locus gfc_current_locus;
1953 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1954 void gfc_free (void *);
1955 int gfc_terminal_width (void);
1956 void gfc_clear_ts (gfc_typespec *);
1957 FILE *gfc_open_file (const char *);
1958 const char *gfc_basic_typename (bt);
1959 const char *gfc_typename (gfc_typespec *);
1960 const char *gfc_op2string (gfc_intrinsic_op);
1961 const char *gfc_code2string (const mstring *, int);
1962 int gfc_string2code (const mstring *, const char *);
1963 const char *gfc_intent_string (sym_intent);
1965 void gfc_init_1 (void);
1966 void gfc_init_2 (void);
1967 void gfc_done_1 (void);
1968 void gfc_done_2 (void);
1970 int get_c_kind (const char *, CInteropKind_t *);
1973 unsigned int gfc_init_options (unsigned int, const char **);
1974 int gfc_handle_option (size_t, const char *, int);
1975 bool gfc_post_options (const char **);
1978 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1982 typedef struct gfc_error_buf
1985 size_t allocated, index;
1989 void gfc_error_init_1 (void);
1990 void gfc_buffer_error (int);
1992 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1993 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1994 void gfc_clear_warning (void);
1995 void gfc_warning_check (void);
1997 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1998 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1999 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2000 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2001 void gfc_clear_error (void);
2002 int gfc_error_check (void);
2003 int gfc_error_flag_test (void);
2005 notification gfc_notification_std (int);
2006 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2008 /* A general purpose syntax error. */
2009 #define gfc_syntax_error(ST) \
2010 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2012 void gfc_push_error (gfc_error_buf *);
2013 void gfc_pop_error (gfc_error_buf *);
2014 void gfc_free_error (gfc_error_buf *);
2016 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
2017 void gfc_status_char (char);
2019 void gfc_get_errors (int *, int *);
2022 void gfc_arith_init_1 (void);
2023 void gfc_arith_done_1 (void);
2024 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
2025 arith gfc_check_integer_range (mpz_t p, int kind);
2028 try gfc_validate_c_kind (gfc_typespec *);
2029 try gfc_check_any_c_kind (gfc_typespec *);
2030 int gfc_validate_kind (bt, int, bool);
2031 extern int gfc_index_integer_kind;
2032 extern int gfc_default_integer_kind;
2033 extern int gfc_max_integer_kind;
2034 extern int gfc_default_real_kind;
2035 extern int gfc_default_double_kind;
2036 extern int gfc_default_character_kind;
2037 extern int gfc_default_logical_kind;
2038 extern int gfc_default_complex_kind;
2039 extern int gfc_c_int_kind;
2040 extern int gfc_intio_kind;
2041 extern int gfc_charlen_int_kind;
2042 extern int gfc_numeric_storage_size;
2043 extern int gfc_character_storage_size;
2046 void gfc_clear_new_implicit (void);
2047 try gfc_add_new_implicit_range (int, int);
2048 try gfc_merge_new_implicit (gfc_typespec *);
2049 void gfc_set_implicit_none (void);
2050 void gfc_check_function_type (gfc_namespace *);
2051 bool gfc_is_intrinsic_typename (const char *);
2053 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
2054 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2056 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
2057 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
2059 void gfc_set_sym_referenced (gfc_symbol *);
2061 try gfc_add_attribute (symbol_attribute *, locus *);
2062 try gfc_add_allocatable (symbol_attribute *, locus *);
2063 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2064 try gfc_add_external (symbol_attribute *, locus *);
2065 try gfc_add_intrinsic (symbol_attribute *, locus *);
2066 try gfc_add_optional (symbol_attribute *, locus *);
2067 try gfc_add_pointer (symbol_attribute *, locus *);
2068 try gfc_add_cray_pointer (symbol_attribute *, locus *);
2069 try gfc_add_cray_pointee (symbol_attribute *, locus *);
2070 try gfc_mod_pointee_as (gfc_array_spec *);
2071 try gfc_add_protected (symbol_attribute *, const char *, locus *);
2072 try gfc_add_result (symbol_attribute *, const char *, locus *);
2073 try gfc_add_save (symbol_attribute *, const char *, locus *);
2074 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2075 try gfc_add_saved_common (symbol_attribute *, locus *);
2076 try gfc_add_target (symbol_attribute *, locus *);
2077 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2078 try gfc_add_generic (symbol_attribute *, const char *, locus *);
2079 try gfc_add_common (symbol_attribute *, locus *);
2080 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2081 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2082 try gfc_add_data (symbol_attribute *, const char *, locus *);
2083 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2084 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2085 try gfc_add_elemental (symbol_attribute *, locus *);
2086 try gfc_add_pure (symbol_attribute *, locus *);
2087 try gfc_add_recursive (symbol_attribute *, locus *);
2088 try gfc_add_function (symbol_attribute *, const char *, locus *);
2089 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2090 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2091 try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2093 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2094 try gfc_add_is_bind_c(symbol_attribute *, const char *, locus *, int);
2095 try gfc_add_value (symbol_attribute *, const char *, locus *);
2096 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2097 try gfc_add_entry (symbol_attribute *, const char *, locus *);
2098 try gfc_add_procedure (symbol_attribute *, procedure_type,
2099 const char *, locus *);
2100 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2101 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2102 gfc_formal_arglist *, locus *);
2103 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2105 void gfc_clear_attr (symbol_attribute *);
2106 try gfc_missing_attr (symbol_attribute *, locus *);
2107 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2109 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2110 gfc_symbol *gfc_use_derived (gfc_symbol *);
2111 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2112 gfc_component *gfc_find_component (gfc_symbol *, const char *);
2114 gfc_st_label *gfc_get_st_label (int);
2115 void gfc_free_st_label (gfc_st_label *);
2116 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2117 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2119 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2121 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2122 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2123 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2124 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2125 gfc_user_op *gfc_get_uop (const char *);
2126 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2127 void gfc_free_symbol (gfc_symbol *);
2128 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2129 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2130 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2131 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2132 try verify_c_interop (gfc_typespec *, const char *name, locus *where);
2133 try verify_c_interop_param (gfc_symbol *);
2134 try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2135 try verify_bind_c_derived_type (gfc_symbol *);
2136 try verify_com_block_vars_c_interop (gfc_common_head *);
2137 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2138 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2139 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
2140 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2141 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2143 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2145 void gfc_undo_symbols (void);
2146 void gfc_commit_symbols (void);
2147 void gfc_commit_symbol (gfc_symbol *);
2148 void gfc_free_namespace (gfc_namespace *);
2150 void gfc_symbol_init_2 (void);
2151 void gfc_symbol_done_2 (void);
2153 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2154 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2155 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2156 void gfc_save_all (gfc_namespace *);
2158 void gfc_symbol_state (void);
2160 gfc_gsymbol *gfc_get_gsymbol (const char *);
2161 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2163 void copy_formal_args (gfc_symbol *dest, gfc_symbol *src);
2166 extern int gfc_init_expr;
2168 /* Given a symbol that we have decided is intrinsic, mark it as such
2169 by placing it into a special module that is otherwise impossible to
2172 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2174 void gfc_intrinsic_init_1 (void);
2175 void gfc_intrinsic_done_1 (void);
2177 char gfc_type_letter (bt);
2178 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2179 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2180 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2181 int gfc_generic_intrinsic (const char *);
2182 int gfc_specific_intrinsic (const char *);
2183 int gfc_intrinsic_name (const char *, int);
2184 int gfc_intrinsic_actual_ok (const char *, const bool);
2185 gfc_intrinsic_sym *gfc_find_function (const char *);
2186 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2188 match gfc_intrinsic_func_interface (gfc_expr *, int);
2189 match gfc_intrinsic_sub_interface (gfc_code *, int);
2191 /* match.c -- FIXME */
2192 void gfc_free_iterator (gfc_iterator *, int);
2193 void gfc_free_forall_iterator (gfc_forall_iterator *);
2194 void gfc_free_alloc_list (gfc_alloc *);
2195 void gfc_free_namelist (gfc_namelist *);
2196 void gfc_free_equiv (gfc_equiv *);
2197 void gfc_free_data (gfc_data *);
2198 void gfc_free_case_list (gfc_case *);
2200 /* matchexp.c -- FIXME too? */
2201 gfc_expr *gfc_get_parentheses (gfc_expr *);
2204 void gfc_free_omp_clauses (gfc_omp_clauses *);
2205 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2206 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2207 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2208 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2211 void gfc_free_actual_arglist (gfc_actual_arglist *);
2212 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2213 const char *gfc_extract_int (gfc_expr *, int *);
2214 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2215 bool is_subref_array (gfc_expr *);
2217 gfc_expr *gfc_build_conversion (gfc_expr *);
2218 void gfc_free_ref_list (gfc_ref *);
2219 void gfc_type_convert_binary (gfc_expr *);
2220 int gfc_is_constant_expr (gfc_expr *);
2221 try gfc_simplify_expr (gfc_expr *, int);
2222 int gfc_has_vector_index (gfc_expr *);
2224 gfc_expr *gfc_get_expr (void);
2225 void gfc_free_expr (gfc_expr *);
2226 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2227 gfc_expr *gfc_int_expr (int);
2228 gfc_expr *gfc_logical_expr (int, locus *);
2229 mpz_t *gfc_copy_shape (mpz_t *, int);
2230 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2231 gfc_expr *gfc_copy_expr (gfc_expr *);
2233 try gfc_specification_expr (gfc_expr *);
2235 int gfc_numeric_ts (gfc_typespec *);
2236 int gfc_kind_max (gfc_expr *, gfc_expr *);
2238 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2239 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2240 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2241 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2243 gfc_expr *gfc_default_initializer (gfc_typespec *);
2244 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2246 void gfc_expr_set_symbols_referenced (gfc_expr *);
2249 extern gfc_code new_st;
2251 void gfc_clear_new_st (void);
2252 gfc_code *gfc_get_code (void);
2253 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2254 void gfc_free_statement (gfc_code *);
2255 void gfc_free_statements (gfc_code *);
2258 try gfc_resolve_expr (gfc_expr *);
2259 void gfc_resolve (gfc_namespace *);
2260 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2261 int gfc_impure_variable (gfc_symbol *);
2262 int gfc_pure (gfc_symbol *);
2263 int gfc_elemental (gfc_symbol *);
2264 try gfc_resolve_iterator (gfc_iterator *, bool);
2265 try gfc_resolve_index (gfc_expr *, int);
2266 try gfc_resolve_dim_arg (gfc_expr *);
2267 int gfc_is_formal_arg (void);
2268 void gfc_resolve_substring_charlen (gfc_expr *);
2269 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2273 void gfc_free_array_spec (gfc_array_spec *);
2274 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2276 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2277 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2278 try gfc_resolve_array_spec (gfc_array_spec *, int);
2280 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2282 gfc_expr *gfc_start_constructor (bt, int, locus *);
2283 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2284 void gfc_free_constructor (gfc_constructor *);
2285 void gfc_simplify_iterator_var (gfc_expr *);
2286 try gfc_expand_constructor (gfc_expr *);
2287 int gfc_constant_ac (gfc_expr *);
2288 int gfc_expanded_ac (gfc_expr *);
2289 void gfc_resolve_character_array_constructor (gfc_expr *);
2290 try gfc_resolve_array_constructor (gfc_expr *);
2291 try gfc_check_constructor_type (gfc_expr *);
2292 try gfc_check_iter_variable (gfc_expr *);
2293 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2294 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2295 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2296 try gfc_array_size (gfc_expr *, mpz_t *);
2297 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2298 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2299 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2300 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2301 gfc_constructor *gfc_get_constructor (void);
2302 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2303 try spec_size (gfc_array_spec *, mpz_t *);
2304 try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2305 int gfc_is_compile_time_shape (gfc_array_spec *);
2307 /* interface.c -- FIXME: some of these should be in symbol.c */
2308 void gfc_free_interface (gfc_interface *);
2309 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2310 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2311 void gfc_check_interfaces (gfc_namespace *);
2312 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2313 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2314 gfc_actual_arglist **);
2315 try gfc_extend_expr (gfc_expr *);
2316 void gfc_free_formal_arglist (gfc_formal_arglist *);
2317 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2318 try gfc_add_interface (gfc_symbol *);
2321 extern gfc_st_label format_asterisk;
2323 void gfc_free_open (gfc_open *);
2324 try gfc_resolve_open (gfc_open *);
2325 void gfc_free_close (gfc_close *);
2326 try gfc_resolve_close (gfc_close *);
2327 void gfc_free_filepos (gfc_filepos *);
2328 try gfc_resolve_filepos (gfc_filepos *);
2329 void gfc_free_inquire (gfc_inquire *);
2330 try gfc_resolve_inquire (gfc_inquire *);
2331 void gfc_free_dt (gfc_dt *);
2332 try gfc_resolve_dt (gfc_dt *);
2335 void gfc_module_init_2 (void);
2336 void gfc_module_done_2 (void);
2337 void gfc_dump_module (const char *, int);
2338 bool gfc_check_access (gfc_access, gfc_access);
2341 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2342 symbol_attribute gfc_expr_attr (gfc_expr *);
2343 match gfc_match_rvalue (gfc_expr **);
2346 void gfc_generate_code (gfc_namespace *);
2347 void gfc_generate_module_code (gfc_namespace *);
2350 typedef int (*compare_fn) (void *, void *);
2351 void gfc_insert_bbt (void *, void *, compare_fn);
2352 void gfc_delete_bbt (void *, void *, compare_fn);
2354 /* dump-parse-tree.c */
2355 void gfc_show_actual_arglist (gfc_actual_arglist *);
2356 void gfc_show_array_ref (gfc_array_ref *);
2357 void gfc_show_array_spec (gfc_array_spec *);
2358 void gfc_show_attr (symbol_attribute *);
2359 void gfc_show_code (int, gfc_code *);
2360 void gfc_show_components (gfc_symbol *);
2361 void gfc_show_constructor (gfc_constructor *);
2362 void gfc_show_equiv (gfc_equiv *);
2363 void gfc_show_expr (gfc_expr *);
2364 void gfc_show_namelist (gfc_namelist *);
2365 void gfc_show_namespace (gfc_namespace *);
2366 void gfc_show_ref (gfc_ref *);
2367 void gfc_show_symbol (gfc_symbol *);
2368 void gfc_show_typespec (gfc_typespec *);
2371 try gfc_parse_file (void);
2372 void global_used (gfc_gsymbol *, locus *);
2375 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2377 #endif /* GCC_GFORTRAN_H */