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 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"
36 #include "splay-tree.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 /* Must be at least 63 for F2003. */
59 #define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */
60 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
61 #define GFC_MAX_DIMENSIONS 7 /* Maximum dimensions in an array. */
62 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
64 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
67 #define free(x) Use_gfc_free_instead_of_free()
68 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
71 #define NULL ((void *) 0)
75 #define stringize(x) expand_macro(x)
76 #define expand_macro(x) # x
78 /* For a the runtime library, a standard prefix is a requirement to
79 avoid cluttering the namespace with things nobody asked for. It's
80 ugly to look at and a pain to type when you add the prefix by hand,
81 so we hide it behind a macro. */
82 #define PREFIX(x) "_gfortran_" x
85 #define BLANK_COMMON_NAME "__BLNK__"
87 /* Macro to initialize an mstring structure. */
88 #define minit(s, t) { s, NULL, t }
90 /* Structure for storing strings to be matched by gfc_match_string. */
100 /* Flags to specify which standard/extension contains a feature. */
101 #define GFC_STD_LEGACY (1<<6) /* Backward compatibility. */
102 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */
103 #define GFC_STD_F2003 (1<<4) /* New in F2003. */
104 /* Note that no additional features were deleted or made obsolescent
106 #define GFC_STD_F95 (1<<3) /* New in F95. */
107 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
108 #define GFC_STD_F95_OBS (1<<1) /* Obsolescent in F95. */
109 #define GFC_STD_F77 (1<<0) /* Included in F77, but not
110 deleted or obsolescent in
113 /* Bitmasks for the various FPE that can be enabled. */
114 #define GFC_FPE_INVALID (1<<0)
115 #define GFC_FPE_DENORMAL (1<<1)
116 #define GFC_FPE_ZERO (1<<2)
117 #define GFC_FPE_OVERFLOW (1<<3)
118 #define GFC_FPE_UNDERFLOW (1<<4)
119 #define GFC_FPE_PRECISION (1<<5)
121 /* Keep this in sync with libgfortran/io/io.h ! */
124 { CONVERT_NATIVE=0, CONVERT_SWAP, CONVERT_BIG, CONVERT_LITTLE }
128 /*************************** Enums *****************************/
130 /* The author remains confused to this day about the convention of
131 returning '0' for 'SUCCESS'... or was it the other way around? The
132 following enum makes things much more readable. We also start
133 values off at one instead of zero. */
136 { SUCCESS = 1, FAILURE }
139 /* This is returned by gfc_notification_std to know if, given the flags
140 that were given (-std=, -pedantic) we should issue an error, a warning
144 { SILENT, WARNING, ERROR }
147 /* Matchers return one of these three values. The difference between
148 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
149 successful, but that something non-syntactic is wrong and an error
150 has already been issued. */
153 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
157 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
160 /* Basic types. BT_VOID is used by ISO C BInding so funcs like c_f_pointer
161 can take any arg with the pointer attribute as a param. */
163 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
164 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH,
169 /* Expression node types. */
171 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
172 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
178 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
179 AS_ASSUMED_SIZE, AS_UNKNOWN
184 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
187 /* Statement label types. */
189 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
190 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
194 /* Intrinsic operators. */
196 { GFC_INTRINSIC_BEGIN = 0,
197 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
198 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
199 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
200 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
201 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
202 INTRINSIC_LT, INTRINSIC_LE, INTRINSIC_NOT, INTRINSIC_USER,
203 INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES,
204 GFC_INTRINSIC_END /* Sentinel */
209 /* Strings for all intrinsic operators. */
210 extern mstring intrinsic_operators[];
213 /* This macro is the number of intrinsic operators that exist.
214 Assumptions are made about the numbering of the interface_op enums. */
215 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
217 /* Arithmetic results. */
219 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
220 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
227 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
228 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
229 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
230 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
231 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
232 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
233 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
234 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
235 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
236 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
237 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
238 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
239 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
240 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
241 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
242 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
243 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
244 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
245 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
246 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
247 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
248 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
249 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE,
255 /* Types of interfaces that we can have. Assignment interfaces are
256 considered to be intrinsic operators. */
259 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
260 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
264 /* Symbol flavors: these are all mutually exclusive.
265 10 elements = 4 bits. */
266 typedef enum sym_flavor
268 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
269 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
274 /* Procedure types. 7 elements = 3 bits. */
275 typedef enum procedure_type
276 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
277 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
282 typedef enum sym_intent
283 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
288 typedef enum gfc_access
289 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
293 /* Flags to keep track of where an interface came from.
294 4 elements = 2 bits. */
296 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
300 /* Whether a SAVE attribute was set explicitly or implictly. */
301 typedef enum save_state
302 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
306 /* Strings for all symbol attributes. We use these for dumping the
307 parse tree, in error messages, and also when reading and writing
308 modules. In symbol.c. */
309 extern const mstring flavors[];
310 extern const mstring procedures[];
311 extern const mstring intents[];
312 extern const mstring access_types[];
313 extern const mstring ifsrc_types[];
314 extern const mstring save_status[];
316 /* Enumeration of all the generic intrinsic functions. Used by the
317 backend for identification of a function. */
321 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
322 the backend (eg. KIND). */
353 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
363 GFC_ISYM_DATE_AND_TIME,
367 GFC_ISYM_DOT_PRODUCT,
393 GFC_ISYM_GET_COMMAND,
394 GFC_ISYM_GET_COMMAND_ARGUMENT,
397 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
449 GFC_ISYM_MAXEXPONENT,
456 GFC_ISYM_MINEXPONENT,
476 GFC_ISYM_RANDOM_NUMBER,
477 GFC_ISYM_RANDOM_SEED,
489 GFC_ISYM_SET_EXPONENT,
509 GFC_ISYM_SYSTEM_CLOCK,
529 typedef enum gfc_isym_id gfc_isym_id;
531 /* Runtime errors. The EOR and EOF errors are required to be negative.
532 These codes must be kept synchronized with their equivalents in
533 libgfortran/libgfortran.h . */
537 IOERROR_FIRST = -3, /* Marker for the first error. */
540 IOERROR_OK = 0, /* Indicates success, must be zero. */
541 IOERROR_OS = 5000, /* Operating system error, more info in errno. */
542 IOERROR_OPTION_CONFLICT,
544 IOERROR_MISSING_OPTION,
545 IOERROR_ALREADY_OPEN,
552 IOERROR_READ_OVERFLOW,
554 IOERROR_INTERNAL_UNIT,
557 IOERROR_SHORT_RECORD,
558 IOERROR_CORRUPT_FILE,
559 IOERROR_LAST /* Not a real error, the last error # + 1. */
564 /************************* Structures *****************************/
566 /* Used for keeping things in balanced binary trees. */
567 #define BBT_HEADER(self) int priority; struct self *left, *right
569 #define NAMED_INTCST(a,b,c) a,
572 ISOFORTRANENV_INVALID = -1,
573 #include "iso-fortran-env.def"
574 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
576 iso_fortran_env_symbol;
579 #define NAMED_INTCST(a,b,c) a,
580 #define NAMED_REALCST(a,b,c) a,
581 #define NAMED_CMPXCST(a,b,c) a,
582 #define NAMED_LOGCST(a,b,c) a,
583 #define NAMED_CHARKNDCST(a,b,c) a,
584 #define NAMED_CHARCST(a,b,c) a,
585 #define DERIVED_TYPE(a,b,c) a,
586 #define PROCEDURE(a,b) a,
589 ISOCBINDING_INVALID = -1,
590 #include "iso-c-binding.def"
592 ISOCBINDING_NUMBER = ISOCBINDING_LAST
594 iso_c_binding_symbol;
599 #undef NAMED_CHARKNDCST
606 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
612 char name[GFC_MAX_SYMBOL_LEN + 1];
613 int value; /* Used for both integer and character values. */
618 /* Array of structs, where the structs represent the C interop kinds.
619 The list will be implemented based on a hash of the kind name since
620 these could be accessed multiple times.
621 Declared in trans-types.c as a global, since it's in that file
622 that the list is initialized. */
623 extern CInteropKind_t c_interop_kinds_table[];
625 /* Symbol attribute structure. */
628 /* Variable attributes. */
629 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
630 optional:1, pointer:1, target:1, value:1, volatile_:1,
631 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
634 ENUM_BITFIELD (save_state) save:2;
636 unsigned data:1, /* Symbol is named in a DATA statement. */
637 protected:1, /* Symbol has been marked as protected. */
638 use_assoc:1, /* Symbol has been use-associated. */
639 use_only:1; /* Symbol has been use-associated, with ONLY. */
641 unsigned in_namelist:1, in_common:1, in_equivalence:1;
642 unsigned function:1, subroutine:1, generic:1, generic_copy:1;
643 unsigned implicit_type:1; /* Type defined via implicit rules. */
644 unsigned untyped:1; /* No implicit type could be found. */
646 unsigned is_bind_c:1; /* say if is bound to C */
648 /* These flags are both in the typespec and attribute. The attribute
649 list is what gets read from/written to a module file. The typespec
650 is created from a decl being processed. */
651 unsigned is_c_interop:1; /* It's c interoperable. */
652 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
654 /* Function/subroutine attributes */
655 unsigned sequence:1, elemental:1, pure:1, recursive:1;
656 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1;
658 /* This is set if the subroutine doesn't return. Currently, this
659 is only possible for intrinsic subroutines. */
662 /* Set if this procedure is an alternate entry point. These procedures
663 don't have any code associated, and the backend will turn them into
664 thunks to the master function. */
667 /* Set if this is the master function for a procedure with multiple
669 unsigned entry_master:1;
671 /* Set if this is the master function for a function with multiple
672 entry points where characteristics of the entry points differ. */
673 unsigned mixed_entry_master:1;
675 /* Set if a function must always be referenced by an explicit interface. */
676 unsigned always_explicit:1;
678 /* Set if the symbol has been referenced in an expression. No further
679 modification of type or type parameters is permitted. */
680 unsigned referenced:1;
682 /* Set if the symbol has ambiguous interfaces. */
683 unsigned ambiguous_interfaces:1;
685 /* Set if the is the symbol for the main program. This is the least
686 cumbersome way to communicate this function property without
687 strcmp'ing with __MAIN everywhere. */
688 unsigned is_main_program:1;
690 /* Mutually exclusive multibit attributes. */
691 ENUM_BITFIELD (gfc_access) access:2;
692 ENUM_BITFIELD (sym_intent) intent:2;
693 ENUM_BITFIELD (sym_flavor) flavor:4;
694 ENUM_BITFIELD (ifsrc) if_source:2;
696 ENUM_BITFIELD (procedure_type) proc:3;
698 /* Special attributes for Cray pointers, pointees. */
699 unsigned cray_pointer:1, cray_pointee:1;
701 /* The symbol is a derived type with allocatable components, possibly
703 unsigned alloc_comp:1;
705 /* The namespace where the VOLATILE attribute has been set. */
706 struct gfc_namespace *volatile_ns;
711 /* The following three structures are used to identify a location in
714 gfc_file is used to maintain a tree of the source files and how
715 they include each other
717 gfc_linebuf holds a single line of source code and information
718 which file it resides in
720 locus point to the sourceline and the character in the source
724 typedef struct gfc_file
726 struct gfc_file *included_by, *next, *up;
727 int inclusion_line, line;
731 typedef struct gfc_linebuf
733 #ifdef USE_MAPPED_LOCATION
734 source_location location;
738 struct gfc_file *file;
739 struct gfc_linebuf *next;
746 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
754 /* In order for the "gfc" format checking to work correctly, you must
755 have declared a typedef locus first. */
756 #if GCC_VERSION >= 4001
757 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
759 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
763 extern int gfc_suppress_error;
766 /* Character length structures hold the expression that gives the
767 length of a character variable. We avoid putting these into
768 gfc_typespec because doing so prevents us from doing structure
769 copies and forces us to deallocate any typespecs we create, as well
770 as structures that contain typespecs. They also can have multiple
771 character typespecs pointing to them.
773 These structures form a singly linked list within the current
774 namespace and are deallocated with the namespace. It is possible to
775 end up with gfc_charlen structures that have nothing pointing to them. */
777 typedef struct gfc_charlen
779 struct gfc_expr *length;
780 struct gfc_charlen *next;
787 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
789 /* Type specification structure. FIXME: derived and cl could be union??? */
794 struct gfc_symbol *derived;
795 gfc_charlen *cl; /* For character types only. */
802 /* Array specification. */
805 int rank; /* A rank of zero means that a variable is a scalar. */
807 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
809 /* These two fields are used with the Cray Pointer extension. */
810 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
811 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
812 AS_EXPLICIT, but we want to remember that we
818 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
821 /* Components of derived types. */
822 typedef struct gfc_component
827 int pointer, allocatable, dimension;
833 struct gfc_expr *initializer;
834 struct gfc_component *next;
838 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
840 /* Formal argument lists are lists of symbols. */
841 typedef struct gfc_formal_arglist
843 /* Symbol representing the argument at this position in the arglist. */
844 struct gfc_symbol *sym;
845 /* Points to the next formal argument. */
846 struct gfc_formal_arglist *next;
850 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
853 /* The gfc_actual_arglist structure is for actual arguments. */
854 typedef struct gfc_actual_arglist
857 /* Alternate return label when the expr member is null. */
858 struct gfc_st_label *label;
860 /* This is set to the type of an eventual omitted optional
861 argument. This is used to determine if a hidden string length
862 argument has to be added to a function call. */
865 struct gfc_expr *expr;
866 struct gfc_actual_arglist *next;
870 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
873 /* Because a symbol can belong to multiple namelists, they must be
874 linked externally to the symbol itself. */
875 typedef struct gfc_namelist
877 struct gfc_symbol *sym;
878 struct gfc_namelist *next;
882 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
887 OMP_LIST_FIRSTPRIVATE,
888 OMP_LIST_LASTPRIVATE,
889 OMP_LIST_COPYPRIVATE,
893 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
905 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
909 /* Because a symbol can belong to multiple namelists, they must be
910 linked externally to the symbol itself. */
911 typedef struct gfc_omp_clauses
913 struct gfc_expr *if_expr;
914 struct gfc_expr *num_threads;
915 gfc_namelist *lists[OMP_LIST_NUM];
924 struct gfc_expr *chunk_size;
932 bool nowait, ordered;
936 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
939 /* The gfc_st_label structure is a doubly linked list attached to a
940 namespace that records the usage of statement labels within that
942 /* TODO: Make format/statement specifics a union. */
943 typedef struct gfc_st_label
945 BBT_HEADER(gfc_st_label);
949 gfc_sl_type defined, referenced;
951 struct gfc_expr *format;
960 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
961 typedef struct gfc_interface
963 struct gfc_symbol *sym;
965 struct gfc_interface *next;
969 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
972 /* User operator nodes. These are like stripped down symbols. */
977 gfc_interface *operator;
978 struct gfc_namespace *ns;
983 /* Symbol nodes. These are important things. They are what the
984 standard refers to as "entities". The possibly multiple names that
985 refer to the same entity are accomplished by a binary tree of
986 symtree structures that is balanced by the red-black method-- more
987 than one symtree node can point to any given symbol. */
989 typedef struct gfc_symbol
991 const char *name; /* Primary name, before renaming */
992 const char *module; /* Module this symbol came from */
996 symbol_attribute attr;
998 /* The interface member points to the formal argument list if the
999 symbol is a function or subroutine name. If the symbol is a
1000 generic name, the generic member points to the list of
1003 gfc_interface *generic;
1004 gfc_access component_access;
1006 gfc_formal_arglist *formal;
1007 struct gfc_namespace *formal_ns;
1009 struct gfc_expr *value; /* Parameter/Initializer value */
1011 struct gfc_symbol *result; /* function result symbol */
1012 gfc_component *components; /* Derived type components */
1014 /* Defined only for Cray pointees; points to their pointer. */
1015 struct gfc_symbol *cp_pointer;
1017 struct gfc_symbol *common_next; /* Links for COMMON syms */
1019 /* This is in fact a gfc_common_head but it is only used for pointer
1020 comparisons to check if symbols are in the same common block. */
1021 struct gfc_common_head* common_head;
1023 /* Make sure setup code for dummy arguments is generated in the correct
1029 gfc_namelist *namelist, *namelist_tail;
1031 /* Change management fields. Symbols that might be modified by the
1032 current statement have the mark member nonzero and are kept in a
1033 singly linked list through the tlink field. Of these symbols,
1034 symbols with old_symbol equal to NULL are symbols created within
1035 the current statement. Otherwise, old_symbol points to a copy of
1038 struct gfc_symbol *old_symbol, *tlink;
1039 unsigned mark:1, new:1;
1040 /* Nonzero if all equivalences associated with this symbol have been
1042 unsigned equiv_built:1;
1043 /* Set if this variable is used as an index name in a FORALL. */
1044 unsigned forall_index:1;
1046 struct gfc_namespace *ns; /* namespace containing this symbol */
1050 /* Identity of the intrinsic module the symbol comes from, or
1051 INTMOD_NONE if it's not imported from a intrinsic module. */
1052 intmod_id from_intmod;
1053 /* Identity of the symbol from intrinsic modules, from enums maintained
1054 separately by each intrinsic module. Used together with from_intmod,
1055 it uniquely identifies a symbol from an intrinsic module. */
1058 /* This may be repetitive, since the typespec now has a binding
1060 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1061 /* Store a reference to the common_block, if this symbol is in one. */
1062 struct gfc_common_head *common_block;
1067 /* This structure is used to keep track of symbols in common blocks. */
1068 typedef struct gfc_common_head
1071 char use_assoc, saved, threadprivate;
1072 char name[GFC_MAX_SYMBOL_LEN + 1];
1073 struct gfc_symbol *head;
1074 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1079 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
1082 /* A list of all the alternate entry points for a procedure. */
1084 typedef struct gfc_entry_list
1086 /* The symbol for this entry point. */
1088 /* The zero-based id of this entry point. */
1090 /* The LABEL_EXPR marking this entry point. */
1092 /* The nest item in the list. */
1093 struct gfc_entry_list *next;
1097 #define gfc_get_entry_list() \
1098 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1100 /* Within a namespace, symbols are pointed to by symtree nodes that
1101 are linked together in a balanced binary tree. There can be
1102 several symtrees pointing to the same symbol node via USE
1105 typedef struct gfc_symtree
1107 BBT_HEADER (gfc_symtree);
1112 gfc_symbol *sym; /* Symbol associated with this node */
1114 gfc_common_head *common;
1121 /* A linked list of derived types in the namespace. */
1122 typedef struct gfc_dt_list
1124 struct gfc_symbol *derived;
1125 struct gfc_dt_list *next;
1129 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
1131 /* A list of all derived types. */
1132 extern gfc_dt_list *gfc_derived_types;
1134 /* A namespace describes the contents of procedure, module or
1136 /* ??? Anything else use these? */
1138 typedef struct gfc_namespace
1140 /* Tree containing all the symbols in this namespace. */
1141 gfc_symtree *sym_root;
1142 /* Tree containing all the user-defined operators in the namespace. */
1143 gfc_symtree *uop_root;
1144 /* Tree containing all the common blocks. */
1145 gfc_symtree *common_root;
1147 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1148 int set_flag[GFC_LETTERS];
1149 /* Keeps track of the implicit types associated with the letters. */
1150 gfc_typespec default_type[GFC_LETTERS];
1152 /* If this is a namespace of a procedure, this points to the procedure. */
1153 struct gfc_symbol *proc_name;
1154 /* If this is the namespace of a unit which contains executable
1155 code, this points to it. */
1156 struct gfc_code *code;
1158 /* Points to the equivalences set up in this namespace. */
1159 struct gfc_equiv *equiv;
1161 /* Points to the equivalence groups produced by trans_common. */
1162 struct gfc_equiv_list *equiv_lists;
1164 gfc_interface *operator[GFC_INTRINSIC_OPS];
1166 /* Points to the parent namespace, i.e. the namespace of a module or
1167 procedure in which the procedure belonging to this namespace is
1168 contained. The parent namespace points to this namespace either
1169 directly via CONTAINED, or indirectly via the chain built by
1171 struct gfc_namespace *parent;
1172 /* CONTAINED points to the first contained namespace. Sibling
1173 namespaces are chained via SIBLING. */
1174 struct gfc_namespace *contained, *sibling;
1176 gfc_common_head blank_common;
1177 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1179 gfc_st_label *st_labels;
1180 /* This list holds information about all the data initializers in
1182 struct gfc_data *data;
1184 gfc_charlen *cl_list;
1186 int save_all, seen_save, seen_implicit_none;
1188 /* Normally we don't need to refcount namespaces. However when we read
1189 a module containing a function with multiple entry points, this
1190 will appear as several functions with the same formal namespace. */
1193 /* A list of all alternate entry points to this procedure (or NULL). */
1194 gfc_entry_list *entries;
1196 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1199 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1204 extern gfc_namespace *gfc_current_ns;
1206 /* Global symbols are symbols of global scope. Currently we only use
1207 this to detect collisions already when parsing.
1208 TODO: Extend to verify procedure calls. */
1210 typedef struct gfc_gsymbol
1212 BBT_HEADER(gfc_gsymbol);
1215 const char *sym_name;
1216 const char *mod_name;
1217 const char *binding_label;
1218 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1219 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1226 extern gfc_gsymbol *gfc_gsym_root;
1228 /* Information on interfaces being built. */
1231 interface_type type;
1235 gfc_intrinsic_op op;
1239 extern gfc_interface_info current_interface;
1242 /* Array reference. */
1243 typedef struct gfc_array_ref
1246 int dimen; /* # of components in the reference */
1250 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1251 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1252 *stride[GFC_MAX_DIMENSIONS];
1255 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1256 dimen_type[GFC_MAX_DIMENSIONS];
1258 struct gfc_expr *offset;
1262 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1265 /* Component reference nodes. A variable is stored as an expression
1266 node that points to the base symbol. After that, a singly linked
1267 list of component reference nodes gives the variable's complete
1268 resolution. The array_ref component may be present and comes
1269 before the component component. */
1272 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1275 typedef struct gfc_ref
1281 struct gfc_array_ref ar;
1285 gfc_component *component;
1292 struct gfc_expr *start, *end; /* Substring */
1293 gfc_charlen *length;
1300 struct gfc_ref *next;
1304 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1307 /* Structures representing intrinsic symbols and their arguments lists. */
1308 typedef struct gfc_intrinsic_arg
1310 char name[GFC_MAX_SYMBOL_LEN + 1];
1314 gfc_actual_arglist *actual;
1316 struct gfc_intrinsic_arg *next;
1322 /* Specifies the various kinds of check functions used to verify the
1323 argument lists of intrinsic functions. fX with X an integer refer
1324 to check functions of intrinsics with X arguments. f1m is used for
1325 the MAX and MIN intrinsics which can have an arbitrary number of
1326 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1327 these have special semantics. */
1332 try (*f1)(struct gfc_expr *);
1333 try (*f1m)(gfc_actual_arglist *);
1334 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1335 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1336 try (*f3ml)(gfc_actual_arglist *);
1337 try (*f3red)(gfc_actual_arglist *);
1338 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1340 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1341 struct gfc_expr *, struct gfc_expr *);
1345 /* Like gfc_check_f, these specify the type of the simplification
1346 function associated with an intrinsic. The fX are just like in
1347 gfc_check_f. cc is used for type conversion functions. */
1351 struct gfc_expr *(*f0)(void);
1352 struct gfc_expr *(*f1)(struct gfc_expr *);
1353 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1354 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1356 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1357 struct gfc_expr *, struct gfc_expr *);
1358 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1359 struct gfc_expr *, struct gfc_expr *,
1361 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1365 /* Again like gfc_check_f, these specify the type of the resolution
1366 function associated with an intrinsic. The fX are just like in
1367 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1371 void (*f0)(struct gfc_expr *);
1372 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1373 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1374 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1375 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1377 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1378 struct gfc_expr *, struct gfc_expr *);
1379 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1380 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1381 void (*s1)(struct gfc_code *);
1386 typedef struct gfc_intrinsic_sym
1388 const char *name, *lib_name;
1389 gfc_intrinsic_arg *formal;
1391 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1393 gfc_simplify_f simplify;
1395 gfc_resolve_f resolve;
1396 struct gfc_intrinsic_sym *specific_head, *next;
1403 /* Expression nodes. The expression node types deserve explanations,
1404 since the last couple can be easily misconstrued:
1406 EXPR_OP Operator node pointing to one or two other nodes
1407 EXPR_FUNCTION Function call, symbol points to function's name
1408 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1409 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1410 which expresses structure, array and substring refs.
1411 EXPR_NULL The NULL pointer value (which also has a basic type).
1412 EXPR_SUBSTRING A substring of a constant string
1413 EXPR_STRUCTURE A structure constructor
1414 EXPR_ARRAY An array constructor. */
1418 #define GFC_RND_MODE GMP_RNDN
1420 typedef struct gfc_expr
1424 gfc_typespec ts; /* These two refer to the overall expression */
1427 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1429 /* Nonnull for functions and structure constructors */
1430 gfc_symtree *symtree;
1436 /* True if the expression is a call to a function that returns an array,
1437 and if we have decided not to allocate temporary data for that array. */
1438 unsigned int inline_noncopying_intrinsic : 1;
1440 /* Used to quickly find a given constructor by its offset. */
1441 splay_tree con_by_offset;
1443 /* If an expression comes from a Hollerith constant or compile-time
1444 evaluation of a transfer statement, it may have a prescribed target-
1445 memory representation, and these cannot always be backformed from
1470 gfc_intrinsic_op operator;
1472 struct gfc_expr *op1, *op2;
1478 gfc_actual_arglist *actual;
1479 const char *name; /* Points to the ultimate name of the function */
1480 gfc_intrinsic_sym *isym;
1492 struct gfc_constructor *constructor;
1500 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1502 /* Structures for information associated with different kinds of
1503 numbers. The first set of integer parameters define all there is
1504 to know about a particular kind. The rest of the elements are
1505 computed from the first elements. */
1509 /* Values really representable by the target. */
1510 mpz_t huge, pedantic_min_int, min_int;
1512 int kind, radix, digits, bit_size, range;
1514 /* True if the C type of the given name maps to this precision.
1515 Note that more than one bit can be set. */
1516 unsigned int c_char : 1;
1517 unsigned int c_short : 1;
1518 unsigned int c_int : 1;
1519 unsigned int c_long : 1;
1520 unsigned int c_long_long : 1;
1524 extern gfc_integer_info gfc_integer_kinds[];
1531 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1532 unsigned int c_bool : 1;
1536 extern gfc_logical_info gfc_logical_kinds[];
1541 mpfr_t epsilon, huge, tiny, subnormal;
1542 int kind, radix, digits, min_exponent, max_exponent;
1543 int range, precision;
1545 /* The precision of the type as reported by GET_MODE_PRECISION. */
1548 /* True if the C type of the given name maps to this precision.
1549 Note that more than one bit can be set. */
1550 unsigned int c_float : 1;
1551 unsigned int c_double : 1;
1552 unsigned int c_long_double : 1;
1556 extern gfc_real_info gfc_real_kinds[];
1559 /* Equivalence structures. Equivalent lvalues are linked along the
1560 *eq pointer, equivalence sets are strung along the *next node. */
1561 typedef struct gfc_equiv
1563 struct gfc_equiv *next, *eq;
1570 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1572 /* Holds a single equivalence member after processing. */
1573 typedef struct gfc_equiv_info
1576 HOST_WIDE_INT offset;
1577 HOST_WIDE_INT length;
1578 struct gfc_equiv_info *next;
1581 /* Holds equivalence groups, after they have been processed. */
1582 typedef struct gfc_equiv_list
1584 gfc_equiv_info *equiv;
1585 struct gfc_equiv_list *next;
1588 /* gfc_case stores the selector list of a case statement. The *low
1589 and *high pointers can point to the same expression in the case of
1590 a single value. If *high is NULL, the selection is from *low
1591 upwards, if *low is NULL the selection is *high downwards.
1593 This structure has separate fields to allow single and double linked
1594 lists of CASEs at the same time. The singe linked list along the NEXT
1595 field is a list of cases for a single CASE label. The double linked
1596 list along the LEFT/RIGHT fields is used to detect overlap and to
1597 build a table of the cases for SELECT constructs with a CHARACTER
1600 typedef struct gfc_case
1602 /* Where we saw this case. */
1606 /* Case range values. If (low == high), it's a single value. If one of
1607 the labels is NULL, it's an unbounded case. If both are NULL, this
1608 represents the default case. */
1609 gfc_expr *low, *high;
1611 /* Next case label in the list of cases for a single CASE label. */
1612 struct gfc_case *next;
1614 /* Used for detecting overlap, and for code generation. */
1615 struct gfc_case *left, *right;
1617 /* True if this case label can never be matched. */
1622 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1627 gfc_expr *var, *start, *end, *step;
1631 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1634 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1636 typedef struct gfc_alloc
1639 struct gfc_alloc *next;
1643 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1648 gfc_expr *unit, *file, *status, *access, *form, *recl,
1649 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1657 gfc_expr *unit, *status, *iostat, *iomsg;
1665 gfc_expr *unit, *iostat, *iomsg;
1673 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1674 *name, *access, *sequential, *direct, *form, *formatted,
1675 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1676 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1686 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1688 gfc_symbol *namelist;
1689 /* A format_label of `format_asterisk' indicates the "*" format */
1690 gfc_st_label *format_label;
1691 gfc_st_label *err, *end, *eor;
1693 locus eor_where, end_where, err_where;
1698 typedef struct gfc_forall_iterator
1700 gfc_expr *var, *start, *end, *stride;
1701 struct gfc_forall_iterator *next;
1703 gfc_forall_iterator;
1706 /* Executable statements that fill gfc_code structures. */
1709 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1710 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1711 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1712 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1713 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1714 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1715 EXEC_OPEN, EXEC_CLOSE,
1716 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1717 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1718 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1719 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1720 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1721 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1722 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1727 typedef struct gfc_code
1731 struct gfc_code *block, *next;
1734 gfc_st_label *here, *label, *label2, *label3;
1735 gfc_symtree *symtree;
1736 gfc_expr *expr, *expr2;
1737 /* A name isn't sufficient to identify a subroutine, we need the actual
1738 symbol for the interface definition.
1739 const char *sub_name; */
1740 gfc_symbol *resolved_sym;
1744 gfc_actual_arglist *actual;
1745 gfc_case *case_list;
1746 gfc_iterator *iterator;
1747 gfc_alloc *alloc_list;
1750 gfc_filepos *filepos;
1751 gfc_inquire *inquire;
1753 gfc_forall_iterator *forall_iterator;
1754 struct gfc_code *whichloop;
1756 gfc_entry_list *entry;
1757 gfc_omp_clauses *omp_clauses;
1758 const char *omp_name;
1759 gfc_namelist *omp_namelist;
1762 ext; /* Points to additional structures required by statement */
1764 /* Backend_decl is used for cycle and break labels in do loops, and
1765 probably for other constructs as well, once we translate them. */
1771 /* Storage for DATA statements. */
1772 typedef struct gfc_data_variable
1776 struct gfc_data_variable *list, *next;
1781 typedef struct gfc_data_value
1783 unsigned int repeat;
1785 struct gfc_data_value *next;
1790 typedef struct gfc_data
1792 gfc_data_variable *var;
1793 gfc_data_value *value;
1796 struct gfc_data *next;
1800 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1801 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1802 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1805 /* Structure for holding compile options */
1809 gfc_source_form source_form;
1810 /* Maximum line lengths in fixed- and free-form source, respectively.
1811 When fixed_line_length or free_line_length are 0, the whole line is used,
1812 regardless of length.
1814 If the user requests a fixed_line_length <7 then gfc_init_options()
1815 emits a fatal error. */
1816 int fixed_line_length;
1817 int free_line_length;
1818 /* Maximum number of continuation lines in fixed- and free-form source,
1820 int max_continue_fixed;
1821 int max_continue_free;
1822 int max_identifier_length;
1827 int warn_conversion;
1828 int warn_implicit_interface;
1829 int warn_line_truncation;
1830 int warn_surprising;
1833 int warn_character_truncation;
1836 int flag_all_intrinsics;
1837 int flag_default_double;
1838 int flag_default_integer;
1839 int flag_default_real;
1841 int flag_underscoring;
1842 int flag_second_underscore;
1843 int flag_implicit_none;
1844 int flag_max_stack_var_size;
1845 int flag_range_check;
1846 int flag_pack_derived;
1847 int flag_repack_arrays;
1848 int flag_preprocessed;
1853 int flag_allow_leading_underscore;
1855 int flag_external_blas;
1856 int blas_matmul_limit;
1857 int flag_cray_pointer;
1865 int warn_nonstd_intrinsics;
1869 int max_subrecord_length;
1873 extern gfc_option_t gfc_option;
1875 /* Constructor nodes for array and structure constructors. */
1876 typedef struct gfc_constructor
1879 gfc_iterator *iterator;
1881 struct gfc_constructor *next;
1884 mpz_t offset; /* Record the offset of array element which appears in
1885 data statement like "data a(5)/4/". */
1886 gfc_component *component; /* Record the component being initialized. */
1889 mpz_t repeat; /* Record the repeat number of initial values in data
1890 statement like "data a/5*10/". */
1895 typedef struct iterator_stack
1897 gfc_symtree *variable;
1899 struct iterator_stack *prev;
1902 extern iterator_stack *iter_stack;
1904 /************************ Function prototypes *************************/
1907 void gfc_formalize_init_value (gfc_symbol *);
1908 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1909 try gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1910 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1911 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1914 bool gfc_in_match_data (void);
1915 void gfc_set_in_match_data (bool);
1918 void gfc_scanner_done_1 (void);
1919 void gfc_scanner_init_1 (void);
1921 void gfc_add_include_path (const char *, bool);
1922 void gfc_add_intrinsic_modules_path (const char *);
1923 void gfc_release_include_path (void);
1924 FILE *gfc_open_included_file (const char *, bool, bool);
1925 FILE *gfc_open_intrinsic_module (const char *);
1927 int gfc_at_end (void);
1928 int gfc_at_eof (void);
1929 int gfc_at_bol (void);
1930 int gfc_at_eol (void);
1931 void gfc_advance_line (void);
1932 int gfc_check_include (void);
1934 void gfc_skip_comments (void);
1935 int gfc_next_char_literal (int);
1936 int gfc_next_char (void);
1937 int gfc_peek_char (void);
1938 void gfc_error_recovery (void);
1939 void gfc_gobble_whitespace (void);
1940 try gfc_new_file (void);
1941 const char * gfc_read_orig_filename (const char *, const char **);
1943 extern gfc_source_form gfc_current_form;
1944 extern const char *gfc_source_file;
1945 extern locus gfc_current_locus;
1948 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1949 void gfc_free (void *);
1950 int gfc_terminal_width (void);
1951 void gfc_clear_ts (gfc_typespec *);
1952 FILE *gfc_open_file (const char *);
1953 const char *gfc_basic_typename (bt);
1954 const char *gfc_typename (gfc_typespec *);
1956 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1957 "=" : gfc_code2string (intrinsic_operators, OP))
1959 const char *gfc_code2string (const mstring *, int);
1960 int gfc_string2code (const mstring *, const char *);
1961 const char *gfc_intent_string (sym_intent);
1963 void gfc_init_1 (void);
1964 void gfc_init_2 (void);
1965 void gfc_done_1 (void);
1966 void gfc_done_2 (void);
1968 int get_c_kind (const char *, CInteropKind_t *);
1971 unsigned int gfc_init_options (unsigned int, const char **);
1972 int gfc_handle_option (size_t, const char *, int);
1973 bool gfc_post_options (const char **);
1976 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1980 typedef struct gfc_error_buf
1983 size_t allocated, index;
1987 void gfc_error_init_1 (void);
1988 void gfc_buffer_error (int);
1990 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1991 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1992 void gfc_clear_warning (void);
1993 void gfc_warning_check (void);
1995 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1996 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1997 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1998 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1999 void gfc_clear_error (void);
2000 int gfc_error_check (void);
2001 int gfc_error_flag_test (void);
2003 notification gfc_notification_std (int);
2004 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2006 /* A general purpose syntax error. */
2007 #define gfc_syntax_error(ST) \
2008 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2010 void gfc_push_error (gfc_error_buf *);
2011 void gfc_pop_error (gfc_error_buf *);
2012 void gfc_free_error (gfc_error_buf *);
2014 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
2015 void gfc_status_char (char);
2017 void gfc_get_errors (int *, int *);
2020 void gfc_arith_init_1 (void);
2021 void gfc_arith_done_1 (void);
2022 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
2023 arith gfc_check_integer_range (mpz_t p, int kind);
2026 try gfc_validate_c_kind (gfc_typespec *);
2027 try gfc_check_any_c_kind (gfc_typespec *);
2028 int gfc_validate_kind (bt, int, bool);
2029 extern int gfc_index_integer_kind;
2030 extern int gfc_default_integer_kind;
2031 extern int gfc_max_integer_kind;
2032 extern int gfc_default_real_kind;
2033 extern int gfc_default_double_kind;
2034 extern int gfc_default_character_kind;
2035 extern int gfc_default_logical_kind;
2036 extern int gfc_default_complex_kind;
2037 extern int gfc_c_int_kind;
2038 extern int gfc_intio_kind;
2039 extern int gfc_charlen_int_kind;
2040 extern int gfc_numeric_storage_size;
2041 extern int gfc_character_storage_size;
2044 void gfc_clear_new_implicit (void);
2045 try gfc_add_new_implicit_range (int, int);
2046 try gfc_merge_new_implicit (gfc_typespec *);
2047 void gfc_set_implicit_none (void);
2048 void gfc_check_function_type (gfc_namespace *);
2050 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
2051 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2053 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
2054 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
2056 void gfc_set_sym_referenced (gfc_symbol *);
2058 try gfc_add_attribute (symbol_attribute *, locus *);
2059 try gfc_add_allocatable (symbol_attribute *, locus *);
2060 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2061 try gfc_add_external (symbol_attribute *, locus *);
2062 try gfc_add_intrinsic (symbol_attribute *, locus *);
2063 try gfc_add_optional (symbol_attribute *, locus *);
2064 try gfc_add_pointer (symbol_attribute *, locus *);
2065 try gfc_add_cray_pointer (symbol_attribute *, locus *);
2066 try gfc_add_cray_pointee (symbol_attribute *, locus *);
2067 try gfc_mod_pointee_as (gfc_array_spec *);
2068 try gfc_add_protected (symbol_attribute *, const char *, locus *);
2069 try gfc_add_result (symbol_attribute *, const char *, locus *);
2070 try gfc_add_save (symbol_attribute *, const char *, locus *);
2071 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2072 try gfc_add_saved_common (symbol_attribute *, locus *);
2073 try gfc_add_target (symbol_attribute *, locus *);
2074 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2075 try gfc_add_generic (symbol_attribute *, const char *, locus *);
2076 try gfc_add_common (symbol_attribute *, locus *);
2077 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2078 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2079 try gfc_add_data (symbol_attribute *, const char *, locus *);
2080 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2081 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2082 try gfc_add_elemental (symbol_attribute *, locus *);
2083 try gfc_add_pure (symbol_attribute *, locus *);
2084 try gfc_add_recursive (symbol_attribute *, locus *);
2085 try gfc_add_function (symbol_attribute *, const char *, locus *);
2086 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2087 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2089 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2090 try gfc_add_is_bind_c(symbol_attribute *, const char *, locus *, int);
2091 try gfc_add_value (symbol_attribute *, const char *, locus *);
2092 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2093 try gfc_add_entry (symbol_attribute *, const char *, locus *);
2094 try gfc_add_procedure (symbol_attribute *, procedure_type,
2095 const char *, locus *);
2096 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2097 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2098 gfc_formal_arglist *, locus *);
2099 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2101 void gfc_clear_attr (symbol_attribute *);
2102 try gfc_missing_attr (symbol_attribute *, locus *);
2103 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2105 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2106 gfc_symbol *gfc_use_derived (gfc_symbol *);
2107 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2108 gfc_component *gfc_find_component (gfc_symbol *, const char *);
2110 gfc_st_label *gfc_get_st_label (int);
2111 void gfc_free_st_label (gfc_st_label *);
2112 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2113 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2115 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2116 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2117 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2118 gfc_user_op *gfc_get_uop (const char *);
2119 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2120 void gfc_free_symbol (gfc_symbol *);
2121 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2122 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2123 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2124 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2125 try verify_c_interop (gfc_typespec *, const char *name, locus *where);
2126 try verify_c_interop_param (gfc_symbol *);
2127 try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2128 try verify_bind_c_derived_type (gfc_symbol *);
2129 try verify_com_block_vars_c_interop (gfc_common_head *);
2130 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, char *);
2131 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2132 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
2133 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2134 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2136 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2138 void gfc_undo_symbols (void);
2139 void gfc_commit_symbols (void);
2140 void gfc_commit_symbol (gfc_symbol *);
2141 void gfc_free_namespace (gfc_namespace *);
2143 void gfc_symbol_init_2 (void);
2144 void gfc_symbol_done_2 (void);
2146 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2147 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2148 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2149 void gfc_save_all (gfc_namespace *);
2151 void gfc_symbol_state (void);
2153 gfc_gsymbol *gfc_get_gsymbol (const char *);
2154 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2157 extern int gfc_init_expr;
2159 /* Given a symbol that we have decided is intrinsic, mark it as such
2160 by placing it into a special module that is otherwise impossible to
2163 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2165 void gfc_intrinsic_init_1 (void);
2166 void gfc_intrinsic_done_1 (void);
2168 char gfc_type_letter (bt);
2169 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2170 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2171 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2172 int gfc_generic_intrinsic (const char *);
2173 int gfc_specific_intrinsic (const char *);
2174 int gfc_intrinsic_name (const char *, int);
2175 int gfc_intrinsic_actual_ok (const char *, const bool);
2176 gfc_intrinsic_sym *gfc_find_function (const char *);
2177 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2179 match gfc_intrinsic_func_interface (gfc_expr *, int);
2180 match gfc_intrinsic_sub_interface (gfc_code *, int);
2182 /* match.c -- FIXME */
2183 void gfc_free_iterator (gfc_iterator *, int);
2184 void gfc_free_forall_iterator (gfc_forall_iterator *);
2185 void gfc_free_alloc_list (gfc_alloc *);
2186 void gfc_free_namelist (gfc_namelist *);
2187 void gfc_free_equiv (gfc_equiv *);
2188 void gfc_free_data (gfc_data *);
2189 void gfc_free_case_list (gfc_case *);
2191 /* matchexp.c -- FIXME too? */
2192 gfc_expr *gfc_get_parentheses (gfc_expr *);
2195 void gfc_free_omp_clauses (gfc_omp_clauses *);
2196 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2197 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2198 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2199 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2202 void gfc_free_actual_arglist (gfc_actual_arglist *);
2203 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2204 const char *gfc_extract_int (gfc_expr *, int *);
2205 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2207 gfc_expr *gfc_build_conversion (gfc_expr *);
2208 void gfc_free_ref_list (gfc_ref *);
2209 void gfc_type_convert_binary (gfc_expr *);
2210 int gfc_is_constant_expr (gfc_expr *);
2211 try gfc_simplify_expr (gfc_expr *, int);
2212 int gfc_has_vector_index (gfc_expr *);
2214 gfc_expr *gfc_get_expr (void);
2215 void gfc_free_expr (gfc_expr *);
2216 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2217 gfc_expr *gfc_int_expr (int);
2218 gfc_expr *gfc_logical_expr (int, locus *);
2219 mpz_t *gfc_copy_shape (mpz_t *, int);
2220 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2221 gfc_expr *gfc_copy_expr (gfc_expr *);
2223 try gfc_specification_expr (gfc_expr *);
2225 int gfc_numeric_ts (gfc_typespec *);
2226 int gfc_kind_max (gfc_expr *, gfc_expr *);
2228 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2229 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2230 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2231 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2233 gfc_expr *gfc_default_initializer (gfc_typespec *);
2234 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2236 void gfc_expr_set_symbols_referenced (gfc_expr *);
2239 extern gfc_code new_st;
2241 void gfc_clear_new_st (void);
2242 gfc_code *gfc_get_code (void);
2243 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2244 void gfc_free_statement (gfc_code *);
2245 void gfc_free_statements (gfc_code *);
2248 try gfc_resolve_expr (gfc_expr *);
2249 void gfc_resolve (gfc_namespace *);
2250 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2251 int gfc_impure_variable (gfc_symbol *);
2252 int gfc_pure (gfc_symbol *);
2253 int gfc_elemental (gfc_symbol *);
2254 try gfc_resolve_iterator (gfc_iterator *, bool);
2255 try gfc_resolve_index (gfc_expr *, int);
2256 try gfc_resolve_dim_arg (gfc_expr *);
2257 int gfc_is_formal_arg (void);
2258 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2262 void gfc_free_array_spec (gfc_array_spec *);
2263 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2265 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2266 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2267 try gfc_resolve_array_spec (gfc_array_spec *, int);
2269 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2271 gfc_expr *gfc_start_constructor (bt, int, locus *);
2272 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2273 void gfc_free_constructor (gfc_constructor *);
2274 void gfc_simplify_iterator_var (gfc_expr *);
2275 try gfc_expand_constructor (gfc_expr *);
2276 int gfc_constant_ac (gfc_expr *);
2277 int gfc_expanded_ac (gfc_expr *);
2278 void gfc_resolve_character_array_constructor (gfc_expr *);
2279 try gfc_resolve_array_constructor (gfc_expr *);
2280 try gfc_check_constructor_type (gfc_expr *);
2281 try gfc_check_iter_variable (gfc_expr *);
2282 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2283 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2284 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2285 try gfc_array_size (gfc_expr *, mpz_t *);
2286 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2287 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2288 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2289 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2290 gfc_constructor *gfc_get_constructor (void);
2291 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2292 try spec_size (gfc_array_spec *, mpz_t *);
2293 try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2294 int gfc_is_compile_time_shape (gfc_array_spec *);
2296 /* interface.c -- FIXME: some of these should be in symbol.c */
2297 void gfc_free_interface (gfc_interface *);
2298 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2299 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2300 void gfc_check_interfaces (gfc_namespace *);
2301 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2302 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2303 gfc_actual_arglist **);
2304 try gfc_extend_expr (gfc_expr *);
2305 void gfc_free_formal_arglist (gfc_formal_arglist *);
2306 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2307 try gfc_add_interface (gfc_symbol *);
2310 extern gfc_st_label format_asterisk;
2312 void gfc_free_open (gfc_open *);
2313 try gfc_resolve_open (gfc_open *);
2314 void gfc_free_close (gfc_close *);
2315 try gfc_resolve_close (gfc_close *);
2316 void gfc_free_filepos (gfc_filepos *);
2317 try gfc_resolve_filepos (gfc_filepos *);
2318 void gfc_free_inquire (gfc_inquire *);
2319 try gfc_resolve_inquire (gfc_inquire *);
2320 void gfc_free_dt (gfc_dt *);
2321 try gfc_resolve_dt (gfc_dt *);
2324 void gfc_module_init_2 (void);
2325 void gfc_module_done_2 (void);
2326 void gfc_dump_module (const char *, int);
2327 bool gfc_check_access (gfc_access, gfc_access);
2330 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2331 symbol_attribute gfc_expr_attr (gfc_expr *);
2332 match gfc_match_rvalue (gfc_expr **);
2335 void gfc_generate_code (gfc_namespace *);
2336 void gfc_generate_module_code (gfc_namespace *);
2339 typedef int (*compare_fn) (void *, void *);
2340 void gfc_insert_bbt (void *, void *, compare_fn);
2341 void gfc_delete_bbt (void *, void *, compare_fn);
2343 /* dump-parse-tree.c */
2344 void gfc_show_actual_arglist (gfc_actual_arglist *);
2345 void gfc_show_array_ref (gfc_array_ref *);
2346 void gfc_show_array_spec (gfc_array_spec *);
2347 void gfc_show_attr (symbol_attribute *);
2348 void gfc_show_code (int, gfc_code *);
2349 void gfc_show_components (gfc_symbol *);
2350 void gfc_show_constructor (gfc_constructor *);
2351 void gfc_show_equiv (gfc_equiv *);
2352 void gfc_show_expr (gfc_expr *);
2353 void gfc_show_namelist (gfc_namelist *);
2354 void gfc_show_namespace (gfc_namespace *);
2355 void gfc_show_ref (gfc_ref *);
2356 void gfc_show_symbol (gfc_symbol *);
2357 void gfc_show_typespec (gfc_typespec *);
2360 try gfc_parse_file (void);
2361 void global_used (gfc_gsymbol *, locus *);
2364 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2366 #endif /* GCC_GFORTRAN_H */