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 /* ==, /=, >, >=, <, <= */
202 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
203 INTRINSIC_LT, INTRINSIC_LE,
204 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
205 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
206 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
207 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
208 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
213 /* Strings for all intrinsic operators. */
214 extern mstring intrinsic_operators[];
217 /* This macro is the number of intrinsic operators that exist.
218 Assumptions are made about the numbering of the interface_op enums. */
219 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
221 /* Arithmetic results. */
223 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
224 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
231 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
232 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
233 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
234 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
235 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
236 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
237 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
238 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
239 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
240 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
241 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
242 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
243 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
244 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
245 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
246 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
247 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
248 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
249 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
250 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
251 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
252 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
253 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE,
259 /* Types of interfaces that we can have. Assignment interfaces are
260 considered to be intrinsic operators. */
263 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
264 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP
268 /* Symbol flavors: these are all mutually exclusive.
269 10 elements = 4 bits. */
270 typedef enum sym_flavor
272 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
273 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
278 /* Procedure types. 7 elements = 3 bits. */
279 typedef enum procedure_type
280 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
281 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
286 typedef enum sym_intent
287 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
292 typedef enum gfc_access
293 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
297 /* Flags to keep track of where an interface came from.
298 4 elements = 2 bits. */
300 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
304 /* Whether a SAVE attribute was set explicitly or implicitly. */
305 typedef enum save_state
306 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
310 /* Strings for all symbol attributes. We use these for dumping the
311 parse tree, in error messages, and also when reading and writing
312 modules. In symbol.c. */
313 extern const mstring flavors[];
314 extern const mstring procedures[];
315 extern const mstring intents[];
316 extern const mstring access_types[];
317 extern const mstring ifsrc_types[];
318 extern const mstring save_status[];
320 /* Enumeration of all the generic intrinsic functions. Used by the
321 backend for identification of a function. */
325 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
326 the backend (eg. KIND). */
357 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
367 GFC_ISYM_DATE_AND_TIME,
371 GFC_ISYM_DOT_PRODUCT,
397 GFC_ISYM_GET_COMMAND,
398 GFC_ISYM_GET_COMMAND_ARGUMENT,
401 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
453 GFC_ISYM_MAXEXPONENT,
460 GFC_ISYM_MINEXPONENT,
480 GFC_ISYM_RANDOM_NUMBER,
481 GFC_ISYM_RANDOM_SEED,
493 GFC_ISYM_SET_EXPONENT,
513 GFC_ISYM_SYSTEM_CLOCK,
533 typedef enum gfc_isym_id gfc_isym_id;
535 /* Runtime errors. The EOR and EOF errors are required to be negative.
536 These codes must be kept synchronized with their equivalents in
537 libgfortran/libgfortran.h . */
541 IOERROR_FIRST = -3, /* Marker for the first error. */
544 IOERROR_OK = 0, /* Indicates success, must be zero. */
545 IOERROR_OS = 5000, /* Operating system error, more info in errno. */
546 IOERROR_OPTION_CONFLICT,
548 IOERROR_MISSING_OPTION,
549 IOERROR_ALREADY_OPEN,
556 IOERROR_READ_OVERFLOW,
558 IOERROR_INTERNAL_UNIT,
561 IOERROR_SHORT_RECORD,
562 IOERROR_CORRUPT_FILE,
563 IOERROR_LAST /* Not a real error, the last error # + 1. */
568 /************************* Structures *****************************/
570 /* Used for keeping things in balanced binary trees. */
571 #define BBT_HEADER(self) int priority; struct self *left, *right
573 #define NAMED_INTCST(a,b,c) a,
576 ISOFORTRANENV_INVALID = -1,
577 #include "iso-fortran-env.def"
578 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
580 iso_fortran_env_symbol;
583 #define NAMED_INTCST(a,b,c) a,
584 #define NAMED_REALCST(a,b,c) a,
585 #define NAMED_CMPXCST(a,b,c) a,
586 #define NAMED_LOGCST(a,b,c) a,
587 #define NAMED_CHARKNDCST(a,b,c) a,
588 #define NAMED_CHARCST(a,b,c) a,
589 #define DERIVED_TYPE(a,b,c) a,
590 #define PROCEDURE(a,b) a,
593 ISOCBINDING_INVALID = -1,
594 #include "iso-c-binding.def"
596 ISOCBINDING_NUMBER = ISOCBINDING_LAST
598 iso_c_binding_symbol;
603 #undef NAMED_CHARKNDCST
610 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
616 char name[GFC_MAX_SYMBOL_LEN + 1];
617 int value; /* Used for both integer and character values. */
622 /* Array of structs, where the structs represent the C interop kinds.
623 The list will be implemented based on a hash of the kind name since
624 these could be accessed multiple times.
625 Declared in trans-types.c as a global, since it's in that file
626 that the list is initialized. */
627 extern CInteropKind_t c_interop_kinds_table[];
629 /* Symbol attribute structure. */
632 /* Variable attributes. */
633 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
634 optional:1, pointer:1, target:1, value:1, volatile_:1,
635 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
638 ENUM_BITFIELD (save_state) save:2;
640 unsigned data:1, /* Symbol is named in a DATA statement. */
641 protected:1, /* Symbol has been marked as protected. */
642 use_assoc:1, /* Symbol has been use-associated. */
643 use_only:1; /* Symbol has been use-associated, with ONLY. */
645 unsigned in_namelist:1, in_common:1, in_equivalence:1;
646 unsigned function:1, subroutine:1, generic:1, generic_copy:1;
647 unsigned implicit_type:1; /* Type defined via implicit rules. */
648 unsigned untyped:1; /* No implicit type could be found. */
650 unsigned is_bind_c:1; /* say if is bound to C */
652 /* These flags are both in the typespec and attribute. The attribute
653 list is what gets read from/written to a module file. The typespec
654 is created from a decl being processed. */
655 unsigned is_c_interop:1; /* It's c interoperable. */
656 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
658 /* Function/subroutine attributes */
659 unsigned sequence:1, elemental:1, pure:1, recursive:1;
660 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1;
662 /* This is set if the subroutine doesn't return. Currently, this
663 is only possible for intrinsic subroutines. */
666 /* Set if this procedure is an alternate entry point. These procedures
667 don't have any code associated, and the backend will turn them into
668 thunks to the master function. */
671 /* Set if this is the master function for a procedure with multiple
673 unsigned entry_master:1;
675 /* Set if this is the master function for a function with multiple
676 entry points where characteristics of the entry points differ. */
677 unsigned mixed_entry_master:1;
679 /* Set if a function must always be referenced by an explicit interface. */
680 unsigned always_explicit:1;
682 /* Set if the symbol has been referenced in an expression. No further
683 modification of type or type parameters is permitted. */
684 unsigned referenced:1;
686 /* Set if the symbol has ambiguous interfaces. */
687 unsigned ambiguous_interfaces:1;
689 /* Set if the is the symbol for the main program. This is the least
690 cumbersome way to communicate this function property without
691 strcmp'ing with __MAIN everywhere. */
692 unsigned is_main_program:1;
694 /* Mutually exclusive multibit attributes. */
695 ENUM_BITFIELD (gfc_access) access:2;
696 ENUM_BITFIELD (sym_intent) intent:2;
697 ENUM_BITFIELD (sym_flavor) flavor:4;
698 ENUM_BITFIELD (ifsrc) if_source:2;
700 ENUM_BITFIELD (procedure_type) proc:3;
702 /* Special attributes for Cray pointers, pointees. */
703 unsigned cray_pointer:1, cray_pointee:1;
705 /* The symbol is a derived type with allocatable components, possibly
707 unsigned alloc_comp:1;
709 /* The namespace where the VOLATILE attribute has been set. */
710 struct gfc_namespace *volatile_ns;
715 /* The following three structures are used to identify a location in
718 gfc_file is used to maintain a tree of the source files and how
719 they include each other
721 gfc_linebuf holds a single line of source code and information
722 which file it resides in
724 locus point to the sourceline and the character in the source
728 typedef struct gfc_file
730 struct gfc_file *included_by, *next, *up;
731 int inclusion_line, line;
735 typedef struct gfc_linebuf
737 #ifdef USE_MAPPED_LOCATION
738 source_location location;
742 struct gfc_file *file;
743 struct gfc_linebuf *next;
750 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
758 /* In order for the "gfc" format checking to work correctly, you must
759 have declared a typedef locus first. */
760 #if GCC_VERSION >= 4001
761 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
763 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
767 extern int gfc_suppress_error;
770 /* Character length structures hold the expression that gives the
771 length of a character variable. We avoid putting these into
772 gfc_typespec because doing so prevents us from doing structure
773 copies and forces us to deallocate any typespecs we create, as well
774 as structures that contain typespecs. They also can have multiple
775 character typespecs pointing to them.
777 These structures form a singly linked list within the current
778 namespace and are deallocated with the namespace. It is possible to
779 end up with gfc_charlen structures that have nothing pointing to them. */
781 typedef struct gfc_charlen
783 struct gfc_expr *length;
784 struct gfc_charlen *next;
791 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
793 /* Type specification structure. FIXME: derived and cl could be union??? */
798 struct gfc_symbol *derived;
799 gfc_charlen *cl; /* For character types only. */
806 /* Array specification. */
809 int rank; /* A rank of zero means that a variable is a scalar. */
811 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
813 /* These two fields are used with the Cray Pointer extension. */
814 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
815 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
816 AS_EXPLICIT, but we want to remember that we
822 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
825 /* Components of derived types. */
826 typedef struct gfc_component
831 int pointer, allocatable, dimension;
837 struct gfc_expr *initializer;
838 struct gfc_component *next;
842 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
844 /* Formal argument lists are lists of symbols. */
845 typedef struct gfc_formal_arglist
847 /* Symbol representing the argument at this position in the arglist. */
848 struct gfc_symbol *sym;
849 /* Points to the next formal argument. */
850 struct gfc_formal_arglist *next;
854 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
857 /* The gfc_actual_arglist structure is for actual arguments. */
858 typedef struct gfc_actual_arglist
861 /* Alternate return label when the expr member is null. */
862 struct gfc_st_label *label;
864 /* This is set to the type of an eventual omitted optional
865 argument. This is used to determine if a hidden string length
866 argument has to be added to a function call. */
869 struct gfc_expr *expr;
870 struct gfc_actual_arglist *next;
874 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
877 /* Because a symbol can belong to multiple namelists, they must be
878 linked externally to the symbol itself. */
879 typedef struct gfc_namelist
881 struct gfc_symbol *sym;
882 struct gfc_namelist *next;
886 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
891 OMP_LIST_FIRSTPRIVATE,
892 OMP_LIST_LASTPRIVATE,
893 OMP_LIST_COPYPRIVATE,
897 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
909 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
913 /* Because a symbol can belong to multiple namelists, they must be
914 linked externally to the symbol itself. */
915 typedef struct gfc_omp_clauses
917 struct gfc_expr *if_expr;
918 struct gfc_expr *num_threads;
919 gfc_namelist *lists[OMP_LIST_NUM];
928 struct gfc_expr *chunk_size;
936 bool nowait, ordered;
940 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
943 /* The gfc_st_label structure is a doubly linked list attached to a
944 namespace that records the usage of statement labels within that
946 /* TODO: Make format/statement specifics a union. */
947 typedef struct gfc_st_label
949 BBT_HEADER(gfc_st_label);
953 gfc_sl_type defined, referenced;
955 struct gfc_expr *format;
964 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
965 typedef struct gfc_interface
967 struct gfc_symbol *sym;
969 struct gfc_interface *next;
973 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
976 /* User operator nodes. These are like stripped down symbols. */
981 gfc_interface *operator;
982 struct gfc_namespace *ns;
987 /* Symbol nodes. These are important things. They are what the
988 standard refers to as "entities". The possibly multiple names that
989 refer to the same entity are accomplished by a binary tree of
990 symtree structures that is balanced by the red-black method-- more
991 than one symtree node can point to any given symbol. */
993 typedef struct gfc_symbol
995 const char *name; /* Primary name, before renaming */
996 const char *module; /* Module this symbol came from */
1000 symbol_attribute attr;
1002 /* The interface member points to the formal argument list if the
1003 symbol is a function or subroutine name. If the symbol is a
1004 generic name, the generic member points to the list of
1007 gfc_interface *generic;
1008 gfc_access component_access;
1010 gfc_formal_arglist *formal;
1011 struct gfc_namespace *formal_ns;
1013 struct gfc_expr *value; /* Parameter/Initializer value */
1015 struct gfc_symbol *result; /* function result symbol */
1016 gfc_component *components; /* Derived type components */
1018 /* Defined only for Cray pointees; points to their pointer. */
1019 struct gfc_symbol *cp_pointer;
1021 struct gfc_symbol *common_next; /* Links for COMMON syms */
1023 /* This is in fact a gfc_common_head but it is only used for pointer
1024 comparisons to check if symbols are in the same common block. */
1025 struct gfc_common_head* common_head;
1027 /* Make sure setup code for dummy arguments is generated in the correct
1033 gfc_namelist *namelist, *namelist_tail;
1035 /* Change management fields. Symbols that might be modified by the
1036 current statement have the mark member nonzero and are kept in a
1037 singly linked list through the tlink field. Of these symbols,
1038 symbols with old_symbol equal to NULL are symbols created within
1039 the current statement. Otherwise, old_symbol points to a copy of
1042 struct gfc_symbol *old_symbol, *tlink;
1043 unsigned mark:1, new:1;
1044 /* Nonzero if all equivalences associated with this symbol have been
1046 unsigned equiv_built:1;
1047 /* Set if this variable is used as an index name in a FORALL. */
1048 unsigned forall_index:1;
1050 struct gfc_namespace *ns; /* namespace containing this symbol */
1054 /* Identity of the intrinsic module the symbol comes from, or
1055 INTMOD_NONE if it's not imported from a intrinsic module. */
1056 intmod_id from_intmod;
1057 /* Identity of the symbol from intrinsic modules, from enums maintained
1058 separately by each intrinsic module. Used together with from_intmod,
1059 it uniquely identifies a symbol from an intrinsic module. */
1062 /* This may be repetitive, since the typespec now has a binding
1064 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1065 /* Store a reference to the common_block, if this symbol is in one. */
1066 struct gfc_common_head *common_block;
1071 /* This structure is used to keep track of symbols in common blocks. */
1072 typedef struct gfc_common_head
1075 char use_assoc, saved, threadprivate;
1076 char name[GFC_MAX_SYMBOL_LEN + 1];
1077 struct gfc_symbol *head;
1078 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1083 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
1086 /* A list of all the alternate entry points for a procedure. */
1088 typedef struct gfc_entry_list
1090 /* The symbol for this entry point. */
1092 /* The zero-based id of this entry point. */
1094 /* The LABEL_EXPR marking this entry point. */
1096 /* The nest item in the list. */
1097 struct gfc_entry_list *next;
1101 #define gfc_get_entry_list() \
1102 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1104 /* Within a namespace, symbols are pointed to by symtree nodes that
1105 are linked together in a balanced binary tree. There can be
1106 several symtrees pointing to the same symbol node via USE
1109 typedef struct gfc_symtree
1111 BBT_HEADER (gfc_symtree);
1116 gfc_symbol *sym; /* Symbol associated with this node */
1118 gfc_common_head *common;
1125 /* A linked list of derived types in the namespace. */
1126 typedef struct gfc_dt_list
1128 struct gfc_symbol *derived;
1129 struct gfc_dt_list *next;
1133 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
1135 /* A list of all derived types. */
1136 extern gfc_dt_list *gfc_derived_types;
1138 /* A namespace describes the contents of procedure, module or
1140 /* ??? Anything else use these? */
1142 typedef struct gfc_namespace
1144 /* Tree containing all the symbols in this namespace. */
1145 gfc_symtree *sym_root;
1146 /* Tree containing all the user-defined operators in the namespace. */
1147 gfc_symtree *uop_root;
1148 /* Tree containing all the common blocks. */
1149 gfc_symtree *common_root;
1151 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1152 int set_flag[GFC_LETTERS];
1153 /* Keeps track of the implicit types associated with the letters. */
1154 gfc_typespec default_type[GFC_LETTERS];
1156 /* If this is a namespace of a procedure, this points to the procedure. */
1157 struct gfc_symbol *proc_name;
1158 /* If this is the namespace of a unit which contains executable
1159 code, this points to it. */
1160 struct gfc_code *code;
1162 /* Points to the equivalences set up in this namespace. */
1163 struct gfc_equiv *equiv;
1165 /* Points to the equivalence groups produced by trans_common. */
1166 struct gfc_equiv_list *equiv_lists;
1168 gfc_interface *operator[GFC_INTRINSIC_OPS];
1170 /* Points to the parent namespace, i.e. the namespace of a module or
1171 procedure in which the procedure belonging to this namespace is
1172 contained. The parent namespace points to this namespace either
1173 directly via CONTAINED, or indirectly via the chain built by
1175 struct gfc_namespace *parent;
1176 /* CONTAINED points to the first contained namespace. Sibling
1177 namespaces are chained via SIBLING. */
1178 struct gfc_namespace *contained, *sibling;
1180 gfc_common_head blank_common;
1181 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1183 gfc_st_label *st_labels;
1184 /* This list holds information about all the data initializers in
1186 struct gfc_data *data;
1188 gfc_charlen *cl_list;
1190 int save_all, seen_save, seen_implicit_none;
1192 /* Normally we don't need to refcount namespaces. However when we read
1193 a module containing a function with multiple entry points, this
1194 will appear as several functions with the same formal namespace. */
1197 /* A list of all alternate entry points to this procedure (or NULL). */
1198 gfc_entry_list *entries;
1200 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1203 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1208 extern gfc_namespace *gfc_current_ns;
1210 /* Global symbols are symbols of global scope. Currently we only use
1211 this to detect collisions already when parsing.
1212 TODO: Extend to verify procedure calls. */
1214 typedef struct gfc_gsymbol
1216 BBT_HEADER(gfc_gsymbol);
1219 const char *sym_name;
1220 const char *mod_name;
1221 const char *binding_label;
1222 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1223 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1230 extern gfc_gsymbol *gfc_gsym_root;
1232 /* Information on interfaces being built. */
1235 interface_type type;
1239 gfc_intrinsic_op op;
1243 extern gfc_interface_info current_interface;
1246 /* Array reference. */
1247 typedef struct gfc_array_ref
1250 int dimen; /* # of components in the reference */
1254 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1255 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1256 *stride[GFC_MAX_DIMENSIONS];
1259 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1260 dimen_type[GFC_MAX_DIMENSIONS];
1262 struct gfc_expr *offset;
1266 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1269 /* Component reference nodes. A variable is stored as an expression
1270 node that points to the base symbol. After that, a singly linked
1271 list of component reference nodes gives the variable's complete
1272 resolution. The array_ref component may be present and comes
1273 before the component component. */
1276 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1279 typedef struct gfc_ref
1285 struct gfc_array_ref ar;
1289 gfc_component *component;
1296 struct gfc_expr *start, *end; /* Substring */
1297 gfc_charlen *length;
1304 struct gfc_ref *next;
1308 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1311 /* Structures representing intrinsic symbols and their arguments lists. */
1312 typedef struct gfc_intrinsic_arg
1314 char name[GFC_MAX_SYMBOL_LEN + 1];
1318 gfc_actual_arglist *actual;
1320 struct gfc_intrinsic_arg *next;
1326 /* Specifies the various kinds of check functions used to verify the
1327 argument lists of intrinsic functions. fX with X an integer refer
1328 to check functions of intrinsics with X arguments. f1m is used for
1329 the MAX and MIN intrinsics which can have an arbitrary number of
1330 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1331 these have special semantics. */
1336 try (*f1)(struct gfc_expr *);
1337 try (*f1m)(gfc_actual_arglist *);
1338 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1339 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1340 try (*f3ml)(gfc_actual_arglist *);
1341 try (*f3red)(gfc_actual_arglist *);
1342 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1344 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1345 struct gfc_expr *, struct gfc_expr *);
1349 /* Like gfc_check_f, these specify the type of the simplification
1350 function associated with an intrinsic. The fX are just like in
1351 gfc_check_f. cc is used for type conversion functions. */
1355 struct gfc_expr *(*f0)(void);
1356 struct gfc_expr *(*f1)(struct gfc_expr *);
1357 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1358 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1360 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1361 struct gfc_expr *, struct gfc_expr *);
1362 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1363 struct gfc_expr *, struct gfc_expr *,
1365 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1369 /* Again like gfc_check_f, these specify the type of the resolution
1370 function associated with an intrinsic. The fX are just like in
1371 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1375 void (*f0)(struct gfc_expr *);
1376 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1377 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1378 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1379 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1381 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1382 struct gfc_expr *, struct gfc_expr *);
1383 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1384 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1385 void (*s1)(struct gfc_code *);
1390 typedef struct gfc_intrinsic_sym
1392 const char *name, *lib_name;
1393 gfc_intrinsic_arg *formal;
1395 int elemental, pure, generic, specific, actual_ok, standard, noreturn;
1397 gfc_simplify_f simplify;
1399 gfc_resolve_f resolve;
1400 struct gfc_intrinsic_sym *specific_head, *next;
1407 /* Expression nodes. The expression node types deserve explanations,
1408 since the last couple can be easily misconstrued:
1410 EXPR_OP Operator node pointing to one or two other nodes
1411 EXPR_FUNCTION Function call, symbol points to function's name
1412 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1413 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1414 which expresses structure, array and substring refs.
1415 EXPR_NULL The NULL pointer value (which also has a basic type).
1416 EXPR_SUBSTRING A substring of a constant string
1417 EXPR_STRUCTURE A structure constructor
1418 EXPR_ARRAY An array constructor. */
1422 #define GFC_RND_MODE GMP_RNDN
1424 typedef struct gfc_expr
1428 gfc_typespec ts; /* These two refer to the overall expression */
1431 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1433 /* Nonnull for functions and structure constructors */
1434 gfc_symtree *symtree;
1440 /* True if the expression is a call to a function that returns an array,
1441 and if we have decided not to allocate temporary data for that array. */
1442 unsigned int inline_noncopying_intrinsic : 1;
1444 /* Used to quickly find a given constructor by its offset. */
1445 splay_tree con_by_offset;
1447 /* If an expression comes from a Hollerith constant or compile-time
1448 evaluation of a transfer statement, it may have a prescribed target-
1449 memory representation, and these cannot always be backformed from
1474 gfc_intrinsic_op operator;
1476 struct gfc_expr *op1, *op2;
1482 gfc_actual_arglist *actual;
1483 const char *name; /* Points to the ultimate name of the function */
1484 gfc_intrinsic_sym *isym;
1496 struct gfc_constructor *constructor;
1504 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1506 /* Structures for information associated with different kinds of
1507 numbers. The first set of integer parameters define all there is
1508 to know about a particular kind. The rest of the elements are
1509 computed from the first elements. */
1513 /* Values really representable by the target. */
1514 mpz_t huge, pedantic_min_int, min_int;
1516 int kind, radix, digits, bit_size, range;
1518 /* True if the C type of the given name maps to this precision.
1519 Note that more than one bit can be set. */
1520 unsigned int c_char : 1;
1521 unsigned int c_short : 1;
1522 unsigned int c_int : 1;
1523 unsigned int c_long : 1;
1524 unsigned int c_long_long : 1;
1528 extern gfc_integer_info gfc_integer_kinds[];
1535 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1536 unsigned int c_bool : 1;
1540 extern gfc_logical_info gfc_logical_kinds[];
1545 mpfr_t epsilon, huge, tiny, subnormal;
1546 int kind, radix, digits, min_exponent, max_exponent;
1547 int range, precision;
1549 /* The precision of the type as reported by GET_MODE_PRECISION. */
1552 /* True if the C type of the given name maps to this precision.
1553 Note that more than one bit can be set. */
1554 unsigned int c_float : 1;
1555 unsigned int c_double : 1;
1556 unsigned int c_long_double : 1;
1560 extern gfc_real_info gfc_real_kinds[];
1563 /* Equivalence structures. Equivalent lvalues are linked along the
1564 *eq pointer, equivalence sets are strung along the *next node. */
1565 typedef struct gfc_equiv
1567 struct gfc_equiv *next, *eq;
1574 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1576 /* Holds a single equivalence member after processing. */
1577 typedef struct gfc_equiv_info
1580 HOST_WIDE_INT offset;
1581 HOST_WIDE_INT length;
1582 struct gfc_equiv_info *next;
1585 /* Holds equivalence groups, after they have been processed. */
1586 typedef struct gfc_equiv_list
1588 gfc_equiv_info *equiv;
1589 struct gfc_equiv_list *next;
1592 /* gfc_case stores the selector list of a case statement. The *low
1593 and *high pointers can point to the same expression in the case of
1594 a single value. If *high is NULL, the selection is from *low
1595 upwards, if *low is NULL the selection is *high downwards.
1597 This structure has separate fields to allow single and double linked
1598 lists of CASEs at the same time. The singe linked list along the NEXT
1599 field is a list of cases for a single CASE label. The double linked
1600 list along the LEFT/RIGHT fields is used to detect overlap and to
1601 build a table of the cases for SELECT constructs with a CHARACTER
1604 typedef struct gfc_case
1606 /* Where we saw this case. */
1610 /* Case range values. If (low == high), it's a single value. If one of
1611 the labels is NULL, it's an unbounded case. If both are NULL, this
1612 represents the default case. */
1613 gfc_expr *low, *high;
1615 /* Next case label in the list of cases for a single CASE label. */
1616 struct gfc_case *next;
1618 /* Used for detecting overlap, and for code generation. */
1619 struct gfc_case *left, *right;
1621 /* True if this case label can never be matched. */
1626 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1631 gfc_expr *var, *start, *end, *step;
1635 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1638 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1640 typedef struct gfc_alloc
1643 struct gfc_alloc *next;
1647 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1652 gfc_expr *unit, *file, *status, *access, *form, *recl,
1653 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1661 gfc_expr *unit, *status, *iostat, *iomsg;
1669 gfc_expr *unit, *iostat, *iomsg;
1677 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1678 *name, *access, *sequential, *direct, *form, *formatted,
1679 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1680 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1690 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1692 gfc_symbol *namelist;
1693 /* A format_label of `format_asterisk' indicates the "*" format */
1694 gfc_st_label *format_label;
1695 gfc_st_label *err, *end, *eor;
1697 locus eor_where, end_where, err_where;
1702 typedef struct gfc_forall_iterator
1704 gfc_expr *var, *start, *end, *stride;
1705 struct gfc_forall_iterator *next;
1707 gfc_forall_iterator;
1710 /* Executable statements that fill gfc_code structures. */
1713 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1714 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1715 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1716 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1717 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1718 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1719 EXEC_OPEN, EXEC_CLOSE,
1720 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1721 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1722 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1723 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1724 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1725 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1726 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1731 typedef struct gfc_code
1735 struct gfc_code *block, *next;
1738 gfc_st_label *here, *label, *label2, *label3;
1739 gfc_symtree *symtree;
1740 gfc_expr *expr, *expr2;
1741 /* A name isn't sufficient to identify a subroutine, we need the actual
1742 symbol for the interface definition.
1743 const char *sub_name; */
1744 gfc_symbol *resolved_sym;
1748 gfc_actual_arglist *actual;
1749 gfc_case *case_list;
1750 gfc_iterator *iterator;
1751 gfc_alloc *alloc_list;
1754 gfc_filepos *filepos;
1755 gfc_inquire *inquire;
1757 gfc_forall_iterator *forall_iterator;
1758 struct gfc_code *whichloop;
1760 gfc_entry_list *entry;
1761 gfc_omp_clauses *omp_clauses;
1762 const char *omp_name;
1763 gfc_namelist *omp_namelist;
1766 ext; /* Points to additional structures required by statement */
1768 /* Backend_decl is used for cycle and break labels in do loops, and
1769 probably for other constructs as well, once we translate them. */
1775 /* Storage for DATA statements. */
1776 typedef struct gfc_data_variable
1780 struct gfc_data_variable *list, *next;
1785 typedef struct gfc_data_value
1787 unsigned int repeat;
1789 struct gfc_data_value *next;
1794 typedef struct gfc_data
1796 gfc_data_variable *var;
1797 gfc_data_value *value;
1800 struct gfc_data *next;
1804 #define gfc_get_data_variable() gfc_getmem(sizeof(gfc_data_variable))
1805 #define gfc_get_data_value() gfc_getmem(sizeof(gfc_data_value))
1806 #define gfc_get_data() gfc_getmem(sizeof(gfc_data))
1809 /* Structure for holding compile options */
1813 gfc_source_form source_form;
1814 /* Maximum line lengths in fixed- and free-form source, respectively.
1815 When fixed_line_length or free_line_length are 0, the whole line is used,
1816 regardless of length.
1818 If the user requests a fixed_line_length <7 then gfc_init_options()
1819 emits a fatal error. */
1820 int fixed_line_length;
1821 int free_line_length;
1822 /* Maximum number of continuation lines in fixed- and free-form source,
1824 int max_continue_fixed;
1825 int max_continue_free;
1826 int max_identifier_length;
1831 int warn_conversion;
1832 int warn_implicit_interface;
1833 int warn_line_truncation;
1834 int warn_surprising;
1837 int warn_character_truncation;
1840 int flag_all_intrinsics;
1841 int flag_default_double;
1842 int flag_default_integer;
1843 int flag_default_real;
1845 int flag_underscoring;
1846 int flag_second_underscore;
1847 int flag_implicit_none;
1848 int flag_max_stack_var_size;
1849 int flag_range_check;
1850 int flag_pack_derived;
1851 int flag_repack_arrays;
1852 int flag_preprocessed;
1857 int flag_allow_leading_underscore;
1859 int flag_external_blas;
1860 int blas_matmul_limit;
1861 int flag_cray_pointer;
1869 int warn_nonstd_intrinsics;
1873 int max_subrecord_length;
1877 extern gfc_option_t gfc_option;
1879 /* Constructor nodes for array and structure constructors. */
1880 typedef struct gfc_constructor
1883 gfc_iterator *iterator;
1885 struct gfc_constructor *next;
1888 mpz_t offset; /* Record the offset of array element which appears in
1889 data statement like "data a(5)/4/". */
1890 gfc_component *component; /* Record the component being initialized. */
1893 mpz_t repeat; /* Record the repeat number of initial values in data
1894 statement like "data a/5*10/". */
1899 typedef struct iterator_stack
1901 gfc_symtree *variable;
1903 struct iterator_stack *prev;
1906 extern iterator_stack *iter_stack;
1908 /************************ Function prototypes *************************/
1911 void gfc_formalize_init_value (gfc_symbol *);
1912 void gfc_get_section_index (gfc_array_ref *, mpz_t *, mpz_t *);
1913 try gfc_assign_data_value (gfc_expr *, gfc_expr *, mpz_t);
1914 void gfc_assign_data_value_range (gfc_expr *, gfc_expr *, mpz_t, mpz_t);
1915 void gfc_advance_section (mpz_t *, gfc_array_ref *, mpz_t *);
1918 bool gfc_in_match_data (void);
1919 void gfc_set_in_match_data (bool);
1922 void gfc_scanner_done_1 (void);
1923 void gfc_scanner_init_1 (void);
1925 void gfc_add_include_path (const char *, bool);
1926 void gfc_add_intrinsic_modules_path (const char *);
1927 void gfc_release_include_path (void);
1928 FILE *gfc_open_included_file (const char *, bool, bool);
1929 FILE *gfc_open_intrinsic_module (const char *);
1931 int gfc_at_end (void);
1932 int gfc_at_eof (void);
1933 int gfc_at_bol (void);
1934 int gfc_at_eol (void);
1935 void gfc_advance_line (void);
1936 int gfc_check_include (void);
1938 void gfc_skip_comments (void);
1939 int gfc_next_char_literal (int);
1940 int gfc_next_char (void);
1941 int gfc_peek_char (void);
1942 void gfc_error_recovery (void);
1943 void gfc_gobble_whitespace (void);
1944 try gfc_new_file (void);
1945 const char * gfc_read_orig_filename (const char *, const char **);
1947 extern gfc_source_form gfc_current_form;
1948 extern const char *gfc_source_file;
1949 extern locus gfc_current_locus;
1952 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1953 void gfc_free (void *);
1954 int gfc_terminal_width (void);
1955 void gfc_clear_ts (gfc_typespec *);
1956 FILE *gfc_open_file (const char *);
1957 const char *gfc_basic_typename (bt);
1958 const char *gfc_typename (gfc_typespec *);
1960 #define gfc_op2string(OP) (OP == INTRINSIC_ASSIGN ? \
1961 "=" : gfc_code2string (intrinsic_operators, OP))
1963 const char *gfc_code2string (const mstring *, int);
1964 int gfc_string2code (const mstring *, const char *);
1965 const char *gfc_intent_string (sym_intent);
1967 void gfc_init_1 (void);
1968 void gfc_init_2 (void);
1969 void gfc_done_1 (void);
1970 void gfc_done_2 (void);
1972 int get_c_kind (const char *, CInteropKind_t *);
1975 unsigned int gfc_init_options (unsigned int, const char **);
1976 int gfc_handle_option (size_t, const char *, int);
1977 bool gfc_post_options (const char **);
1980 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1984 typedef struct gfc_error_buf
1987 size_t allocated, index;
1991 void gfc_error_init_1 (void);
1992 void gfc_buffer_error (int);
1994 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1995 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1996 void gfc_clear_warning (void);
1997 void gfc_warning_check (void);
1999 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2000 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2001 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2002 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2003 void gfc_clear_error (void);
2004 int gfc_error_check (void);
2005 int gfc_error_flag_test (void);
2007 notification gfc_notification_std (int);
2008 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2010 /* A general purpose syntax error. */
2011 #define gfc_syntax_error(ST) \
2012 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2014 void gfc_push_error (gfc_error_buf *);
2015 void gfc_pop_error (gfc_error_buf *);
2016 void gfc_free_error (gfc_error_buf *);
2018 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
2019 void gfc_status_char (char);
2021 void gfc_get_errors (int *, int *);
2024 void gfc_arith_init_1 (void);
2025 void gfc_arith_done_1 (void);
2026 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
2027 arith gfc_check_integer_range (mpz_t p, int kind);
2030 try gfc_validate_c_kind (gfc_typespec *);
2031 try gfc_check_any_c_kind (gfc_typespec *);
2032 int gfc_validate_kind (bt, int, bool);
2033 extern int gfc_index_integer_kind;
2034 extern int gfc_default_integer_kind;
2035 extern int gfc_max_integer_kind;
2036 extern int gfc_default_real_kind;
2037 extern int gfc_default_double_kind;
2038 extern int gfc_default_character_kind;
2039 extern int gfc_default_logical_kind;
2040 extern int gfc_default_complex_kind;
2041 extern int gfc_c_int_kind;
2042 extern int gfc_intio_kind;
2043 extern int gfc_charlen_int_kind;
2044 extern int gfc_numeric_storage_size;
2045 extern int gfc_character_storage_size;
2048 void gfc_clear_new_implicit (void);
2049 try gfc_add_new_implicit_range (int, int);
2050 try gfc_merge_new_implicit (gfc_typespec *);
2051 void gfc_set_implicit_none (void);
2052 void gfc_check_function_type (gfc_namespace *);
2054 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
2055 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2057 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
2058 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
2060 void gfc_set_sym_referenced (gfc_symbol *);
2062 try gfc_add_attribute (symbol_attribute *, locus *);
2063 try gfc_add_allocatable (symbol_attribute *, locus *);
2064 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2065 try gfc_add_external (symbol_attribute *, locus *);
2066 try gfc_add_intrinsic (symbol_attribute *, locus *);
2067 try gfc_add_optional (symbol_attribute *, locus *);
2068 try gfc_add_pointer (symbol_attribute *, locus *);
2069 try gfc_add_cray_pointer (symbol_attribute *, locus *);
2070 try gfc_add_cray_pointee (symbol_attribute *, locus *);
2071 try gfc_mod_pointee_as (gfc_array_spec *);
2072 try gfc_add_protected (symbol_attribute *, const char *, locus *);
2073 try gfc_add_result (symbol_attribute *, const char *, locus *);
2074 try gfc_add_save (symbol_attribute *, const char *, locus *);
2075 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2076 try gfc_add_saved_common (symbol_attribute *, locus *);
2077 try gfc_add_target (symbol_attribute *, locus *);
2078 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2079 try gfc_add_generic (symbol_attribute *, const char *, locus *);
2080 try gfc_add_common (symbol_attribute *, locus *);
2081 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2082 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2083 try gfc_add_data (symbol_attribute *, const char *, locus *);
2084 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2085 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2086 try gfc_add_elemental (symbol_attribute *, locus *);
2087 try gfc_add_pure (symbol_attribute *, locus *);
2088 try gfc_add_recursive (symbol_attribute *, locus *);
2089 try gfc_add_function (symbol_attribute *, const char *, locus *);
2090 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2091 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
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_namespace *gfc_get_namespace (gfc_namespace *, int);
2120 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2121 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2122 gfc_user_op *gfc_get_uop (const char *);
2123 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2124 void gfc_free_symbol (gfc_symbol *);
2125 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2126 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2127 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2128 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2129 try verify_c_interop (gfc_typespec *, const char *name, locus *where);
2130 try verify_c_interop_param (gfc_symbol *);
2131 try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2132 try verify_bind_c_derived_type (gfc_symbol *);
2133 try verify_com_block_vars_c_interop (gfc_common_head *);
2134 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, char *);
2135 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2136 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
2137 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2138 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2140 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2142 void gfc_undo_symbols (void);
2143 void gfc_commit_symbols (void);
2144 void gfc_commit_symbol (gfc_symbol *);
2145 void gfc_free_namespace (gfc_namespace *);
2147 void gfc_symbol_init_2 (void);
2148 void gfc_symbol_done_2 (void);
2150 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2151 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2152 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2153 void gfc_save_all (gfc_namespace *);
2155 void gfc_symbol_state (void);
2157 gfc_gsymbol *gfc_get_gsymbol (const char *);
2158 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2161 extern int gfc_init_expr;
2163 /* Given a symbol that we have decided is intrinsic, mark it as such
2164 by placing it into a special module that is otherwise impossible to
2167 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2169 void gfc_intrinsic_init_1 (void);
2170 void gfc_intrinsic_done_1 (void);
2172 char gfc_type_letter (bt);
2173 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2174 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2175 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2176 int gfc_generic_intrinsic (const char *);
2177 int gfc_specific_intrinsic (const char *);
2178 int gfc_intrinsic_name (const char *, int);
2179 int gfc_intrinsic_actual_ok (const char *, const bool);
2180 gfc_intrinsic_sym *gfc_find_function (const char *);
2181 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2183 match gfc_intrinsic_func_interface (gfc_expr *, int);
2184 match gfc_intrinsic_sub_interface (gfc_code *, int);
2186 /* match.c -- FIXME */
2187 void gfc_free_iterator (gfc_iterator *, int);
2188 void gfc_free_forall_iterator (gfc_forall_iterator *);
2189 void gfc_free_alloc_list (gfc_alloc *);
2190 void gfc_free_namelist (gfc_namelist *);
2191 void gfc_free_equiv (gfc_equiv *);
2192 void gfc_free_data (gfc_data *);
2193 void gfc_free_case_list (gfc_case *);
2195 /* matchexp.c -- FIXME too? */
2196 gfc_expr *gfc_get_parentheses (gfc_expr *);
2199 void gfc_free_omp_clauses (gfc_omp_clauses *);
2200 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2201 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2202 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2203 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2206 void gfc_free_actual_arglist (gfc_actual_arglist *);
2207 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2208 const char *gfc_extract_int (gfc_expr *, int *);
2209 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2211 gfc_expr *gfc_build_conversion (gfc_expr *);
2212 void gfc_free_ref_list (gfc_ref *);
2213 void gfc_type_convert_binary (gfc_expr *);
2214 int gfc_is_constant_expr (gfc_expr *);
2215 try gfc_simplify_expr (gfc_expr *, int);
2216 int gfc_has_vector_index (gfc_expr *);
2218 gfc_expr *gfc_get_expr (void);
2219 void gfc_free_expr (gfc_expr *);
2220 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2221 gfc_expr *gfc_int_expr (int);
2222 gfc_expr *gfc_logical_expr (int, locus *);
2223 mpz_t *gfc_copy_shape (mpz_t *, int);
2224 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2225 gfc_expr *gfc_copy_expr (gfc_expr *);
2227 try gfc_specification_expr (gfc_expr *);
2229 int gfc_numeric_ts (gfc_typespec *);
2230 int gfc_kind_max (gfc_expr *, gfc_expr *);
2232 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2233 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2234 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2235 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2237 gfc_expr *gfc_default_initializer (gfc_typespec *);
2238 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2240 void gfc_expr_set_symbols_referenced (gfc_expr *);
2243 extern gfc_code new_st;
2245 void gfc_clear_new_st (void);
2246 gfc_code *gfc_get_code (void);
2247 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2248 void gfc_free_statement (gfc_code *);
2249 void gfc_free_statements (gfc_code *);
2252 try gfc_resolve_expr (gfc_expr *);
2253 void gfc_resolve (gfc_namespace *);
2254 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2255 int gfc_impure_variable (gfc_symbol *);
2256 int gfc_pure (gfc_symbol *);
2257 int gfc_elemental (gfc_symbol *);
2258 try gfc_resolve_iterator (gfc_iterator *, bool);
2259 try gfc_resolve_index (gfc_expr *, int);
2260 try gfc_resolve_dim_arg (gfc_expr *);
2261 int gfc_is_formal_arg (void);
2262 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2266 void gfc_free_array_spec (gfc_array_spec *);
2267 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2269 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2270 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2271 try gfc_resolve_array_spec (gfc_array_spec *, int);
2273 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2275 gfc_expr *gfc_start_constructor (bt, int, locus *);
2276 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2277 void gfc_free_constructor (gfc_constructor *);
2278 void gfc_simplify_iterator_var (gfc_expr *);
2279 try gfc_expand_constructor (gfc_expr *);
2280 int gfc_constant_ac (gfc_expr *);
2281 int gfc_expanded_ac (gfc_expr *);
2282 void gfc_resolve_character_array_constructor (gfc_expr *);
2283 try gfc_resolve_array_constructor (gfc_expr *);
2284 try gfc_check_constructor_type (gfc_expr *);
2285 try gfc_check_iter_variable (gfc_expr *);
2286 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2287 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2288 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2289 try gfc_array_size (gfc_expr *, mpz_t *);
2290 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2291 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2292 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2293 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2294 gfc_constructor *gfc_get_constructor (void);
2295 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2296 try spec_size (gfc_array_spec *, mpz_t *);
2297 try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2298 int gfc_is_compile_time_shape (gfc_array_spec *);
2300 /* interface.c -- FIXME: some of these should be in symbol.c */
2301 void gfc_free_interface (gfc_interface *);
2302 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2303 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2304 void gfc_check_interfaces (gfc_namespace *);
2305 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2306 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2307 gfc_actual_arglist **);
2308 try gfc_extend_expr (gfc_expr *);
2309 void gfc_free_formal_arglist (gfc_formal_arglist *);
2310 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2311 try gfc_add_interface (gfc_symbol *);
2314 extern gfc_st_label format_asterisk;
2316 void gfc_free_open (gfc_open *);
2317 try gfc_resolve_open (gfc_open *);
2318 void gfc_free_close (gfc_close *);
2319 try gfc_resolve_close (gfc_close *);
2320 void gfc_free_filepos (gfc_filepos *);
2321 try gfc_resolve_filepos (gfc_filepos *);
2322 void gfc_free_inquire (gfc_inquire *);
2323 try gfc_resolve_inquire (gfc_inquire *);
2324 void gfc_free_dt (gfc_dt *);
2325 try gfc_resolve_dt (gfc_dt *);
2328 void gfc_module_init_2 (void);
2329 void gfc_module_done_2 (void);
2330 void gfc_dump_module (const char *, int);
2331 bool gfc_check_access (gfc_access, gfc_access);
2334 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2335 symbol_attribute gfc_expr_attr (gfc_expr *);
2336 match gfc_match_rvalue (gfc_expr **);
2339 void gfc_generate_code (gfc_namespace *);
2340 void gfc_generate_module_code (gfc_namespace *);
2343 typedef int (*compare_fn) (void *, void *);
2344 void gfc_insert_bbt (void *, void *, compare_fn);
2345 void gfc_delete_bbt (void *, void *, compare_fn);
2347 /* dump-parse-tree.c */
2348 void gfc_show_actual_arglist (gfc_actual_arglist *);
2349 void gfc_show_array_ref (gfc_array_ref *);
2350 void gfc_show_array_spec (gfc_array_spec *);
2351 void gfc_show_attr (symbol_attribute *);
2352 void gfc_show_code (int, gfc_code *);
2353 void gfc_show_components (gfc_symbol *);
2354 void gfc_show_constructor (gfc_constructor *);
2355 void gfc_show_equiv (gfc_equiv *);
2356 void gfc_show_expr (gfc_expr *);
2357 void gfc_show_namelist (gfc_namelist *);
2358 void gfc_show_namespace (gfc_namespace *);
2359 void gfc_show_ref (gfc_ref *);
2360 void gfc_show_symbol (gfc_symbol *);
2361 void gfc_show_typespec (gfc_typespec *);
2364 try gfc_parse_file (void);
2365 void global_used (gfc_gsymbol *, locus *);
2368 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2370 #endif /* GCC_GFORTRAN_H */