1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 #ifndef GCC_GFORTRAN_H
23 #define GCC_GFORTRAN_H
25 /* It's probably insane to have this large of a header file, but it
26 seemed like everything had to be recompiled anyway when a change
27 was made to a header file, and there were ordering issues with
28 multiple header files. Besides, Microsoft's winnt.h was 250k last
29 time I looked, so by comparison this is perfectly reasonable. */
31 /* Declarations common to the front-end and library are put in
32 libgfortran/libgfortran_frontend.h */
33 #include "libgfortran.h"
38 #include "coretypes.h"
40 #include "splay-tree.h"
41 /* The following ifdefs are recommended by the autoconf documentation
42 for any code using alloca. */
44 /* AIX requires this to be the first thing in the file. */
46 #else /* not __GNUC__ */
49 #else /* do not HAVE_ALLOCA_H */
53 #ifndef alloca /* predefined by HP cc +Olibcalls */
55 #endif /* not predefined */
57 #endif /* do not HAVE_ALLOCA_H */
58 #endif /* not __GNUC__ */
60 /* Major control parameters. */
62 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
63 #define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */
64 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
65 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
67 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
70 #define free(x) Use_gfc_free_instead_of_free()
71 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
74 #define NULL ((void *) 0)
78 #define stringize(x) expand_macro(x)
79 #define expand_macro(x) # x
81 /* For the runtime library, a standard prefix is a requirement to
82 avoid cluttering the namespace with things nobody asked for. It's
83 ugly to look at and a pain to type when you add the prefix by hand,
84 so we hide it behind a macro. */
85 #define PREFIX(x) "_gfortran_" x
88 #define BLANK_COMMON_NAME "__BLNK__"
90 /* Macro to initialize an mstring structure. */
91 #define minit(s, t) { s, NULL, t }
93 /* Structure for storing strings to be matched by gfc_match_string. */
104 /*************************** Enums *****************************/
106 /* Used when matching and resolving data I/O transfer statements. */
109 { M_READ, M_WRITE, M_PRINT, M_INQUIRE }
112 /* The author remains confused to this day about the convention of
113 returning '0' for 'SUCCESS'... or was it the other way around? The
114 following enum makes things much more readable. We also start
115 values off at one instead of zero. */
118 { SUCCESS = 1, FAILURE }
121 /* This is returned by gfc_notification_std to know if, given the flags
122 that were given (-std=, -pedantic) we should issue an error, a warning
126 { SILENT, WARNING, ERROR }
129 /* Matchers return one of these three values. The difference between
130 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
131 successful, but that something non-syntactic is wrong and an error
132 has already been issued. */
135 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
139 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
142 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer
143 can take any arg with the pointer attribute as a param. */
145 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
146 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH,
151 /* Expression node types. */
153 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
154 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL
160 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
161 AS_ASSUMED_SIZE, AS_UNKNOWN
166 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
169 /* Statement label types. */
171 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
172 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
176 /* Intrinsic operators. */
178 { GFC_INTRINSIC_BEGIN = 0,
179 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
180 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
181 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
182 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
183 /* ==, /=, >, >=, <, <= */
184 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
185 INTRINSIC_LT, INTRINSIC_LE,
186 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
187 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
188 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
189 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
190 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
195 /* This macro is the number of intrinsic operators that exist.
196 Assumptions are made about the numbering of the interface_op enums. */
197 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
199 /* Arithmetic results. */
201 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
202 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
209 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
210 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
211 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
212 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
213 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
214 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
215 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
216 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
217 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
218 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
219 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
220 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT,
221 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
222 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
223 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
224 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
225 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
226 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
227 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
228 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
229 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
230 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
231 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
232 ST_OMP_TASKWAIT, ST_PROCEDURE, ST_GENERIC,
233 ST_GET_FCN_CHARACTERISTICS, ST_NONE
238 /* Types of interfaces that we can have. Assignment interfaces are
239 considered to be intrinsic operators. */
242 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
243 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
247 /* Symbol flavors: these are all mutually exclusive.
248 10 elements = 4 bits. */
249 typedef enum sym_flavor
251 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
252 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
257 /* Procedure types. 7 elements = 3 bits. */
258 typedef enum procedure_type
259 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
260 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
265 typedef enum sym_intent
266 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
271 typedef enum gfc_access
272 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
276 /* Flags to keep track of where an interface came from.
277 4 elements = 2 bits. */
279 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
283 /* Whether a SAVE attribute was set explicitly or implicitly. */
284 typedef enum save_state
285 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
289 /* Strings for all symbol attributes. We use these for dumping the
290 parse tree, in error messages, and also when reading and writing
291 modules. In symbol.c. */
292 extern const mstring flavors[];
293 extern const mstring procedures[];
294 extern const mstring intents[];
295 extern const mstring access_types[];
296 extern const mstring ifsrc_types[];
297 extern const mstring save_status[];
299 /* Enumeration of all the generic intrinsic functions. Used by the
300 backend for identification of a function. */
304 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
305 the backend (e.g. KIND). */
336 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
346 GFC_ISYM_DATE_AND_TIME,
350 GFC_ISYM_DOT_PRODUCT,
357 GFC_ISYM_ERFC_SCALED,
378 GFC_ISYM_GET_COMMAND,
379 GFC_ISYM_GET_COMMAND_ARGUMENT,
382 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
408 GFC_ISYM_IS_IOSTAT_END,
409 GFC_ISYM_IS_IOSTAT_EOR,
440 GFC_ISYM_MAXEXPONENT,
447 GFC_ISYM_MINEXPONENT,
467 GFC_ISYM_RANDOM_NUMBER,
468 GFC_ISYM_RANDOM_SEED,
481 GFC_ISYM_SET_EXPONENT,
501 GFC_ISYM_SYSTEM_CLOCK,
522 typedef enum gfc_isym_id gfc_isym_id;
527 GFC_INIT_REAL_OFF = 0,
531 GFC_INIT_REAL_NEG_INF
537 GFC_INIT_LOGICAL_OFF = 0,
538 GFC_INIT_LOGICAL_FALSE,
539 GFC_INIT_LOGICAL_TRUE
545 GFC_INIT_CHARACTER_OFF = 0,
546 GFC_INIT_CHARACTER_ON
548 init_local_character;
552 GFC_INIT_INTEGER_OFF = 0,
557 /************************* Structures *****************************/
559 /* Used for keeping things in balanced binary trees. */
560 #define BBT_HEADER(self) int priority; struct self *left, *right
562 #define NAMED_INTCST(a,b,c,d) a,
565 ISOFORTRANENV_INVALID = -1,
566 #include "iso-fortran-env.def"
567 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
569 iso_fortran_env_symbol;
572 #define NAMED_INTCST(a,b,c,d) a,
573 #define NAMED_REALCST(a,b,c) a,
574 #define NAMED_CMPXCST(a,b,c) a,
575 #define NAMED_LOGCST(a,b,c) a,
576 #define NAMED_CHARKNDCST(a,b,c) a,
577 #define NAMED_CHARCST(a,b,c) a,
578 #define DERIVED_TYPE(a,b,c) a,
579 #define PROCEDURE(a,b) a,
582 ISOCBINDING_INVALID = -1,
583 #include "iso-c-binding.def"
585 ISOCBINDING_NUMBER = ISOCBINDING_LAST
587 iso_c_binding_symbol;
592 #undef NAMED_CHARKNDCST
599 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
605 char name[GFC_MAX_SYMBOL_LEN + 1];
606 int value; /* Used for both integer and character values. */
611 /* Array of structs, where the structs represent the C interop kinds.
612 The list will be implemented based on a hash of the kind name since
613 these could be accessed multiple times.
614 Declared in trans-types.c as a global, since it's in that file
615 that the list is initialized. */
616 extern CInteropKind_t c_interop_kinds_table[];
618 /* Symbol attribute structure. */
621 /* Variable attributes. */
622 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
623 optional:1, pointer:1, target:1, value:1, volatile_:1,
624 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
625 implied_index:1, subref_array_pointer:1, proc_pointer:1;
627 ENUM_BITFIELD (save_state) save:2;
629 unsigned data:1, /* Symbol is named in a DATA statement. */
630 is_protected:1, /* Symbol has been marked as protected. */
631 use_assoc:1, /* Symbol has been use-associated. */
632 use_only:1, /* Symbol has been use-associated, with ONLY. */
633 use_rename:1, /* Symbol has been use-associated and renamed. */
634 imported:1; /* Symbol has been associated by IMPORT. */
636 unsigned in_namelist:1, in_common:1, in_equivalence:1;
637 unsigned function:1, subroutine:1, procedure:1;
638 unsigned generic:1, generic_copy:1;
639 unsigned implicit_type:1; /* Type defined via implicit rules. */
640 unsigned untyped:1; /* No implicit type could be found. */
642 unsigned is_bind_c:1; /* say if is bound to C. */
643 unsigned extension:1; /* extends a derived type. */
645 /* These flags are both in the typespec and attribute. The attribute
646 list is what gets read from/written to a module file. The typespec
647 is created from a decl being processed. */
648 unsigned is_c_interop:1; /* It's c interoperable. */
649 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
651 /* Function/subroutine attributes */
652 unsigned sequence:1, elemental:1, pure:1, recursive:1;
653 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
655 /* This is set if the subroutine doesn't return. Currently, this
656 is only possible for intrinsic subroutines. */
659 /* Set if this procedure is an alternate entry point. These procedures
660 don't have any code associated, and the backend will turn them into
661 thunks to the master function. */
664 /* Set if this is the master function for a procedure with multiple
666 unsigned entry_master:1;
668 /* Set if this is the master function for a function with multiple
669 entry points where characteristics of the entry points differ. */
670 unsigned mixed_entry_master:1;
672 /* Set if a function must always be referenced by an explicit interface. */
673 unsigned always_explicit:1;
675 /* Set if the symbol has been referenced in an expression. No further
676 modification of type or type parameters is permitted. */
677 unsigned referenced:1;
679 /* Set if the symbol has ambiguous interfaces. */
680 unsigned ambiguous_interfaces:1;
682 /* Set if this is the symbol for the main program. */
683 unsigned is_main_program:1;
685 /* Mutually exclusive multibit attributes. */
686 ENUM_BITFIELD (gfc_access) access:2;
687 ENUM_BITFIELD (sym_intent) intent:2;
688 ENUM_BITFIELD (sym_flavor) flavor:4;
689 ENUM_BITFIELD (ifsrc) if_source:2;
691 ENUM_BITFIELD (procedure_type) proc:3;
693 /* Special attributes for Cray pointers, pointees. */
694 unsigned cray_pointer:1, cray_pointee:1;
696 /* The symbol is a derived type with allocatable components, pointer
697 components or private components, possibly nested. zero_comp
698 is true if the derived type has no component at all. */
699 unsigned alloc_comp:1, pointer_comp:1, private_comp:1, zero_comp:1;
701 /* The namespace where the VOLATILE attribute has been set. */
702 struct gfc_namespace *volatile_ns;
707 /* We need to store source lines as sequences of multibyte source
708 characters. We define here a type wide enough to hold any multibyte
709 source character, just like libcpp does. A 32-bit type is enough. */
711 #if HOST_BITS_PER_INT >= 32
712 typedef unsigned int gfc_char_t;
713 #elif HOST_BITS_PER_LONG >= 32
714 typedef unsigned long gfc_char_t;
715 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
716 typedef unsigned long long gfc_char_t;
718 # error "Cannot find an integer type with at least 32 bits"
722 /* The following three structures are used to identify a location in
725 gfc_file is used to maintain a tree of the source files and how
726 they include each other
728 gfc_linebuf holds a single line of source code and information
729 which file it resides in
731 locus point to the sourceline and the character in the source
735 typedef struct gfc_file
737 struct gfc_file *next, *up;
738 int inclusion_line, line;
742 typedef struct gfc_linebuf
744 source_location location;
745 struct gfc_file *file;
746 struct gfc_linebuf *next;
754 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
756 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
764 /* In order for the "gfc" format checking to work correctly, you must
765 have declared a typedef locus first. */
766 #if GCC_VERSION >= 4001
767 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
769 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
773 /* Suppress error messages or re-enable them. */
775 void gfc_push_suppress_errors (void);
776 void gfc_pop_suppress_errors (void);
779 /* Character length structures hold the expression that gives the
780 length of a character variable. We avoid putting these into
781 gfc_typespec because doing so prevents us from doing structure
782 copies and forces us to deallocate any typespecs we create, as well
783 as structures that contain typespecs. They also can have multiple
784 character typespecs pointing to them.
786 These structures form a singly linked list within the current
787 namespace and are deallocated with the namespace. It is possible to
788 end up with gfc_charlen structures that have nothing pointing to them. */
790 typedef struct gfc_charlen
792 struct gfc_expr *length;
793 struct gfc_charlen *next;
794 bool length_from_typespec; /* Length from explicit array ctor typespec? */
801 #define gfc_get_charlen() XCNEW (gfc_charlen)
803 /* Type specification structure. FIXME: derived and cl could be union??? */
808 struct gfc_symbol *derived;
809 gfc_charlen *cl; /* For character types only. */
810 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
817 /* Array specification. */
820 int rank; /* A rank of zero means that a variable is a scalar. */
822 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
824 /* These two fields are used with the Cray Pointer extension. */
825 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
826 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
827 AS_EXPLICIT, but we want to remember that we
833 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
836 /* Components of derived types. */
837 typedef struct gfc_component
842 symbol_attribute attr;
847 struct gfc_expr *initializer;
848 struct gfc_component *next;
852 #define gfc_get_component() XCNEW (gfc_component)
854 /* Formal argument lists are lists of symbols. */
855 typedef struct gfc_formal_arglist
857 /* Symbol representing the argument at this position in the arglist. */
858 struct gfc_symbol *sym;
859 /* Points to the next formal argument. */
860 struct gfc_formal_arglist *next;
864 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
867 /* The gfc_actual_arglist structure is for actual arguments. */
868 typedef struct gfc_actual_arglist
871 /* Alternate return label when the expr member is null. */
872 struct gfc_st_label *label;
874 /* This is set to the type of an eventual omitted optional
875 argument. This is used to determine if a hidden string length
876 argument has to be added to a function call. */
879 struct gfc_expr *expr;
880 struct gfc_actual_arglist *next;
884 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
887 /* Because a symbol can belong to multiple namelists, they must be
888 linked externally to the symbol itself. */
889 typedef struct gfc_namelist
891 struct gfc_symbol *sym;
892 struct gfc_namelist *next;
896 #define gfc_get_namelist() XCNEW (gfc_namelist)
901 OMP_LIST_FIRSTPRIVATE,
902 OMP_LIST_LASTPRIVATE,
903 OMP_LIST_COPYPRIVATE,
907 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
919 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
923 /* Because a symbol can belong to multiple namelists, they must be
924 linked externally to the symbol itself. */
925 typedef struct gfc_omp_clauses
927 struct gfc_expr *if_expr;
928 struct gfc_expr *num_threads;
929 gfc_namelist *lists[OMP_LIST_NUM];
939 struct gfc_expr *chunk_size;
946 OMP_DEFAULT_FIRSTPRIVATE
949 bool nowait, ordered, untied;
953 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
956 /* The gfc_st_label structure is a doubly linked list attached to a
957 namespace that records the usage of statement labels within that
959 /* TODO: Make format/statement specifics a union. */
960 typedef struct gfc_st_label
962 BBT_HEADER(gfc_st_label);
966 gfc_sl_type defined, referenced;
968 struct gfc_expr *format;
977 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
978 typedef struct gfc_interface
980 struct gfc_symbol *sym;
982 struct gfc_interface *next;
986 #define gfc_get_interface() XCNEW (gfc_interface)
988 /* User operator nodes. These are like stripped down symbols. */
994 struct gfc_namespace *ns;
1000 /* A list of specific bindings that are associated with a generic spec. */
1001 typedef struct gfc_tbp_generic
1003 /* The parser sets specific_st, upon resolution we look for the corresponding
1004 gfc_typebound_proc and set specific for further use. */
1005 struct gfc_symtree* specific_st;
1006 struct gfc_typebound_proc* specific;
1008 struct gfc_tbp_generic* next;
1012 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1015 /* Data needed for type-bound procedures. */
1016 typedef struct gfc_typebound_proc
1018 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1022 struct gfc_symtree* specific;
1023 gfc_tbp_generic* generic;
1028 char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1030 /* The overridden type-bound proc (or GENERIC with this name in the
1031 parent-type) or NULL if non. */
1032 struct gfc_typebound_proc* overridden;
1034 /* Once resolved, we use the position of pass_arg in the formal arglist of
1035 the binding-target procedure to identify it. The first argument has
1036 number 1 here, the second 2, and so on. */
1037 unsigned pass_arg_num;
1039 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1040 unsigned non_overridable:1;
1041 unsigned is_generic:1;
1042 unsigned function:1, subroutine:1;
1043 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1047 #define gfc_get_typebound_proc() XCNEW (gfc_typebound_proc)
1050 /* Symbol nodes. These are important things. They are what the
1051 standard refers to as "entities". The possibly multiple names that
1052 refer to the same entity are accomplished by a binary tree of
1053 symtree structures that is balanced by the red-black method-- more
1054 than one symtree node can point to any given symbol. */
1056 typedef struct gfc_symbol
1058 const char *name; /* Primary name, before renaming */
1059 const char *module; /* Module this symbol came from */
1063 symbol_attribute attr;
1065 /* The formal member points to the formal argument list if the
1066 symbol is a function or subroutine name. If the symbol is a
1067 generic name, the generic member points to the list of
1070 gfc_interface *generic;
1071 gfc_access component_access;
1073 gfc_formal_arglist *formal;
1074 struct gfc_namespace *formal_ns;
1075 struct gfc_namespace *f2k_derived;
1077 struct gfc_expr *value; /* Parameter/Initializer value */
1079 struct gfc_symbol *result; /* function result symbol */
1080 gfc_component *components; /* Derived type components */
1082 /* Defined only for Cray pointees; points to their pointer. */
1083 struct gfc_symbol *cp_pointer;
1085 struct gfc_symbol *common_next; /* Links for COMMON syms */
1087 /* This is in fact a gfc_common_head but it is only used for pointer
1088 comparisons to check if symbols are in the same common block. */
1089 struct gfc_common_head* common_head;
1091 /* Make sure setup code for dummy arguments is generated in the correct
1097 gfc_namelist *namelist, *namelist_tail;
1099 /* Change management fields. Symbols that might be modified by the
1100 current statement have the mark member nonzero and are kept in a
1101 singly linked list through the tlink field. Of these symbols,
1102 symbols with old_symbol equal to NULL are symbols created within
1103 the current statement. Otherwise, old_symbol points to a copy of
1106 struct gfc_symbol *old_symbol, *tlink;
1107 unsigned mark:1, gfc_new:1;
1108 /* Nonzero if all equivalences associated with this symbol have been
1110 unsigned equiv_built:1;
1111 /* Set if this variable is used as an index name in a FORALL. */
1112 unsigned forall_index:1;
1114 struct gfc_namespace *ns; /* namespace containing this symbol */
1118 /* Identity of the intrinsic module the symbol comes from, or
1119 INTMOD_NONE if it's not imported from a intrinsic module. */
1120 intmod_id from_intmod;
1121 /* Identity of the symbol from intrinsic modules, from enums maintained
1122 separately by each intrinsic module. Used together with from_intmod,
1123 it uniquely identifies a symbol from an intrinsic module. */
1126 /* This may be repetitive, since the typespec now has a binding
1128 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1129 /* Store a reference to the common_block, if this symbol is in one. */
1130 struct gfc_common_head *common_block;
1135 /* This structure is used to keep track of symbols in common blocks. */
1136 typedef struct gfc_common_head
1139 char use_assoc, saved, threadprivate;
1140 char name[GFC_MAX_SYMBOL_LEN + 1];
1141 struct gfc_symbol *head;
1142 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1147 #define gfc_get_common_head() XCNEW (gfc_common_head)
1150 /* A list of all the alternate entry points for a procedure. */
1152 typedef struct gfc_entry_list
1154 /* The symbol for this entry point. */
1156 /* The zero-based id of this entry point. */
1158 /* The LABEL_EXPR marking this entry point. */
1160 /* The nest item in the list. */
1161 struct gfc_entry_list *next;
1165 #define gfc_get_entry_list() \
1166 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1168 /* Lists of rename info for the USE statement. */
1170 typedef struct gfc_use_rename
1172 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1173 struct gfc_use_rename *next;
1175 gfc_intrinsic_op op;
1180 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1182 /* A list of all USE statements in a namespace. */
1184 typedef struct gfc_use_list
1186 const char *module_name;
1188 struct gfc_use_rename *rename;
1190 /* Next USE statement. */
1191 struct gfc_use_list *next;
1195 #define gfc_get_use_list() \
1196 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1198 /* Within a namespace, symbols are pointed to by symtree nodes that
1199 are linked together in a balanced binary tree. There can be
1200 several symtrees pointing to the same symbol node via USE
1203 typedef struct gfc_symtree
1205 BBT_HEADER (gfc_symtree);
1210 gfc_symbol *sym; /* Symbol associated with this node */
1212 gfc_common_head *common;
1216 /* Data for type-bound procedures; NULL if no type-bound procedure. */
1217 gfc_typebound_proc* typebound;
1221 /* A linked list of derived types in the namespace. */
1222 typedef struct gfc_dt_list
1224 struct gfc_symbol *derived;
1225 struct gfc_dt_list *next;
1229 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1231 /* A list of all derived types. */
1232 extern gfc_dt_list *gfc_derived_types;
1234 /* A namespace describes the contents of procedure, module or
1236 /* ??? Anything else use these? */
1238 typedef struct gfc_namespace
1240 /* Tree containing all the symbols in this namespace. */
1241 gfc_symtree *sym_root;
1242 /* Tree containing all the user-defined operators in the namespace. */
1243 gfc_symtree *uop_root;
1244 /* Tree containing all the common blocks. */
1245 gfc_symtree *common_root;
1246 /* Linked list of finalizer procedures. */
1247 struct gfc_finalizer *finalizers;
1249 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1250 int set_flag[GFC_LETTERS];
1251 /* Keeps track of the implicit types associated with the letters. */
1252 gfc_typespec default_type[GFC_LETTERS];
1253 /* Store the positions of IMPLICIT statements. */
1254 locus implicit_loc[GFC_LETTERS];
1256 /* If this is a namespace of a procedure, this points to the procedure. */
1257 struct gfc_symbol *proc_name;
1258 /* If this is the namespace of a unit which contains executable
1259 code, this points to it. */
1260 struct gfc_code *code;
1262 /* Points to the equivalences set up in this namespace. */
1263 struct gfc_equiv *equiv;
1265 /* Points to the equivalence groups produced by trans_common. */
1266 struct gfc_equiv_list *equiv_lists;
1268 gfc_interface *op[GFC_INTRINSIC_OPS];
1270 /* Points to the parent namespace, i.e. the namespace of a module or
1271 procedure in which the procedure belonging to this namespace is
1272 contained. The parent namespace points to this namespace either
1273 directly via CONTAINED, or indirectly via the chain built by
1275 struct gfc_namespace *parent;
1276 /* CONTAINED points to the first contained namespace. Sibling
1277 namespaces are chained via SIBLING. */
1278 struct gfc_namespace *contained, *sibling;
1280 gfc_common_head blank_common;
1281 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1283 gfc_st_label *st_labels;
1284 /* This list holds information about all the data initializers in
1286 struct gfc_data *data;
1288 gfc_charlen *cl_list, *old_cl_list;
1290 int save_all, seen_save, seen_implicit_none;
1292 /* Normally we don't need to refcount namespaces. However when we read
1293 a module containing a function with multiple entry points, this
1294 will appear as several functions with the same formal namespace. */
1297 /* A list of all alternate entry points to this procedure (or NULL). */
1298 gfc_entry_list *entries;
1300 /* A list of USE statements in this namespace. */
1301 gfc_use_list *use_stmts;
1303 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1306 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1311 extern gfc_namespace *gfc_current_ns;
1313 /* Global symbols are symbols of global scope. Currently we only use
1314 this to detect collisions already when parsing.
1315 TODO: Extend to verify procedure calls. */
1317 typedef struct gfc_gsymbol
1319 BBT_HEADER(gfc_gsymbol);
1322 const char *sym_name;
1323 const char *mod_name;
1324 const char *binding_label;
1325 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1326 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1333 extern gfc_gsymbol *gfc_gsym_root;
1335 /* Information on interfaces being built. */
1338 interface_type type;
1342 gfc_intrinsic_op op;
1346 extern gfc_interface_info current_interface;
1349 /* Array reference. */
1350 typedef struct gfc_array_ref
1353 int dimen; /* # of components in the reference */
1357 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1358 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1359 *stride[GFC_MAX_DIMENSIONS];
1362 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1363 dimen_type[GFC_MAX_DIMENSIONS];
1365 struct gfc_expr *offset;
1369 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1372 /* Component reference nodes. A variable is stored as an expression
1373 node that points to the base symbol. After that, a singly linked
1374 list of component reference nodes gives the variable's complete
1375 resolution. The array_ref component may be present and comes
1376 before the component component. */
1379 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1382 typedef struct gfc_ref
1388 struct gfc_array_ref ar;
1392 gfc_component *component;
1399 struct gfc_expr *start, *end; /* Substring */
1400 gfc_charlen *length;
1407 struct gfc_ref *next;
1411 #define gfc_get_ref() XCNEW (gfc_ref)
1414 /* Structures representing intrinsic symbols and their arguments lists. */
1415 typedef struct gfc_intrinsic_arg
1417 char name[GFC_MAX_SYMBOL_LEN + 1];
1421 gfc_actual_arglist *actual;
1423 struct gfc_intrinsic_arg *next;
1429 /* Specifies the various kinds of check functions used to verify the
1430 argument lists of intrinsic functions. fX with X an integer refer
1431 to check functions of intrinsics with X arguments. f1m is used for
1432 the MAX and MIN intrinsics which can have an arbitrary number of
1433 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1434 these have special semantics. */
1438 gfc_try (*f0)(void);
1439 gfc_try (*f1)(struct gfc_expr *);
1440 gfc_try (*f1m)(gfc_actual_arglist *);
1441 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1442 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1443 gfc_try (*f3ml)(gfc_actual_arglist *);
1444 gfc_try (*f3red)(gfc_actual_arglist *);
1445 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1447 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1448 struct gfc_expr *, struct gfc_expr *);
1452 /* Like gfc_check_f, these specify the type of the simplification
1453 function associated with an intrinsic. The fX are just like in
1454 gfc_check_f. cc is used for type conversion functions. */
1458 struct gfc_expr *(*f0)(void);
1459 struct gfc_expr *(*f1)(struct gfc_expr *);
1460 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1461 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1463 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1464 struct gfc_expr *, struct gfc_expr *);
1465 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1466 struct gfc_expr *, struct gfc_expr *,
1468 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1472 /* Again like gfc_check_f, these specify the type of the resolution
1473 function associated with an intrinsic. The fX are just like in
1474 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1478 void (*f0)(struct gfc_expr *);
1479 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1480 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1481 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1482 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1484 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1485 struct gfc_expr *, struct gfc_expr *);
1486 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1487 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1488 void (*s1)(struct gfc_code *);
1493 typedef struct gfc_intrinsic_sym
1495 const char *name, *lib_name;
1496 gfc_intrinsic_arg *formal;
1498 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1499 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1503 gfc_simplify_f simplify;
1505 gfc_resolve_f resolve;
1506 struct gfc_intrinsic_sym *specific_head, *next;
1513 /* Expression nodes. The expression node types deserve explanations,
1514 since the last couple can be easily misconstrued:
1516 EXPR_OP Operator node pointing to one or two other nodes
1517 EXPR_FUNCTION Function call, symbol points to function's name
1518 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1519 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1520 which expresses structure, array and substring refs.
1521 EXPR_NULL The NULL pointer value (which also has a basic type).
1522 EXPR_SUBSTRING A substring of a constant string
1523 EXPR_STRUCTURE A structure constructor
1524 EXPR_ARRAY An array constructor.
1525 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1526 component or type-bound procedure. */
1530 #define GFC_RND_MODE GMP_RNDN
1532 typedef struct gfc_expr
1536 gfc_typespec ts; /* These two refer to the overall expression */
1539 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1541 /* Nonnull for functions and structure constructors, the base object for
1543 gfc_symtree *symtree;
1549 /* True if the expression is a call to a function that returns an array,
1550 and if we have decided not to allocate temporary data for that array. */
1551 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1;
1553 /* Sometimes, when an error has been emitted, it is necessary to prevent
1554 it from recurring. */
1555 unsigned int error : 1;
1557 /* Used to quickly find a given constructor by its offset. */
1558 splay_tree con_by_offset;
1560 /* If an expression comes from a Hollerith constant or compile-time
1561 evaluation of a transfer statement, it may have a prescribed target-
1562 memory representation, and these cannot always be backformed from
1589 gfc_intrinsic_op op;
1591 struct gfc_expr *op1, *op2;
1597 gfc_actual_arglist *actual;
1598 const char *name; /* Points to the ultimate name of the function */
1599 gfc_intrinsic_sym *isym;
1606 gfc_actual_arglist* actual;
1607 gfc_typebound_proc* tbp;
1619 struct gfc_constructor *constructor;
1627 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1629 /* Structures for information associated with different kinds of
1630 numbers. The first set of integer parameters define all there is
1631 to know about a particular kind. The rest of the elements are
1632 computed from the first elements. */
1636 /* Values really representable by the target. */
1637 mpz_t huge, pedantic_min_int, min_int;
1639 int kind, radix, digits, bit_size, range;
1641 /* True if the C type of the given name maps to this precision.
1642 Note that more than one bit can be set. */
1643 unsigned int c_char : 1;
1644 unsigned int c_short : 1;
1645 unsigned int c_int : 1;
1646 unsigned int c_long : 1;
1647 unsigned int c_long_long : 1;
1651 extern gfc_integer_info gfc_integer_kinds[];
1658 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1659 unsigned int c_bool : 1;
1663 extern gfc_logical_info gfc_logical_kinds[];
1668 mpfr_t epsilon, huge, tiny, subnormal;
1669 int kind, radix, digits, min_exponent, max_exponent;
1670 int range, precision;
1672 /* The precision of the type as reported by GET_MODE_PRECISION. */
1675 /* True if the C type of the given name maps to this precision.
1676 Note that more than one bit can be set. */
1677 unsigned int c_float : 1;
1678 unsigned int c_double : 1;
1679 unsigned int c_long_double : 1;
1683 extern gfc_real_info gfc_real_kinds[];
1692 extern gfc_character_info gfc_character_kinds[];
1695 /* Equivalence structures. Equivalent lvalues are linked along the
1696 *eq pointer, equivalence sets are strung along the *next node. */
1697 typedef struct gfc_equiv
1699 struct gfc_equiv *next, *eq;
1706 #define gfc_get_equiv() XCNEW (gfc_equiv)
1708 /* Holds a single equivalence member after processing. */
1709 typedef struct gfc_equiv_info
1712 HOST_WIDE_INT offset;
1713 HOST_WIDE_INT length;
1714 struct gfc_equiv_info *next;
1717 /* Holds equivalence groups, after they have been processed. */
1718 typedef struct gfc_equiv_list
1720 gfc_equiv_info *equiv;
1721 struct gfc_equiv_list *next;
1724 /* gfc_case stores the selector list of a case statement. The *low
1725 and *high pointers can point to the same expression in the case of
1726 a single value. If *high is NULL, the selection is from *low
1727 upwards, if *low is NULL the selection is *high downwards.
1729 This structure has separate fields to allow single and double linked
1730 lists of CASEs at the same time. The singe linked list along the NEXT
1731 field is a list of cases for a single CASE label. The double linked
1732 list along the LEFT/RIGHT fields is used to detect overlap and to
1733 build a table of the cases for SELECT constructs with a CHARACTER
1736 typedef struct gfc_case
1738 /* Where we saw this case. */
1742 /* Case range values. If (low == high), it's a single value. If one of
1743 the labels is NULL, it's an unbounded case. If both are NULL, this
1744 represents the default case. */
1745 gfc_expr *low, *high;
1747 /* Next case label in the list of cases for a single CASE label. */
1748 struct gfc_case *next;
1750 /* Used for detecting overlap, and for code generation. */
1751 struct gfc_case *left, *right;
1753 /* True if this case label can never be matched. */
1758 #define gfc_get_case() XCNEW (gfc_case)
1763 gfc_expr *var, *start, *end, *step;
1767 #define gfc_get_iterator() XCNEW (gfc_iterator)
1770 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1772 typedef struct gfc_alloc
1775 struct gfc_alloc *next;
1779 #define gfc_get_alloc() XCNEW (gfc_alloc)
1784 gfc_expr *unit, *file, *status, *access, *form, *recl,
1785 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1786 *decimal, *encoding, *round, *sign, *asynchronous, *id;
1794 gfc_expr *unit, *status, *iostat, *iomsg;
1802 gfc_expr *unit, *iostat, *iomsg;
1810 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1811 *name, *access, *sequential, *direct, *form, *formatted,
1812 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1813 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1814 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1824 gfc_expr *unit, *iostat, *iomsg, *id;
1825 gfc_st_label *err, *end, *eor;
1832 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1833 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1834 *sign, *extra_comma;
1836 gfc_symbol *namelist;
1837 /* A format_label of `format_asterisk' indicates the "*" format */
1838 gfc_st_label *format_label;
1839 gfc_st_label *err, *end, *eor;
1841 locus eor_where, end_where, err_where;
1846 typedef struct gfc_forall_iterator
1848 gfc_expr *var, *start, *end, *stride;
1849 struct gfc_forall_iterator *next;
1851 gfc_forall_iterator;
1854 /* Executable statements that fill gfc_code structures. */
1857 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1858 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
1859 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1860 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1861 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1862 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1863 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
1864 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1865 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1866 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1867 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1868 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1869 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1870 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1871 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
1875 typedef struct gfc_code
1879 struct gfc_code *block, *next;
1882 gfc_st_label *here, *label, *label2, *label3;
1883 gfc_symtree *symtree;
1884 gfc_expr *expr, *expr2;
1885 /* A name isn't sufficient to identify a subroutine, we need the actual
1886 symbol for the interface definition.
1887 const char *sub_name; */
1888 gfc_symbol *resolved_sym;
1889 gfc_intrinsic_sym *resolved_isym;
1893 gfc_actual_arglist *actual;
1894 gfc_case *case_list;
1895 gfc_iterator *iterator;
1896 gfc_alloc *alloc_list;
1899 gfc_filepos *filepos;
1900 gfc_inquire *inquire;
1903 gfc_forall_iterator *forall_iterator;
1904 struct gfc_code *whichloop;
1906 gfc_entry_list *entry;
1907 gfc_omp_clauses *omp_clauses;
1908 const char *omp_name;
1909 gfc_namelist *omp_namelist;
1912 ext; /* Points to additional structures required by statement */
1914 /* Backend_decl is used for cycle and break labels in do loops, and
1915 probably for other constructs as well, once we translate them. */
1921 /* Storage for DATA statements. */
1922 typedef struct gfc_data_variable
1926 struct gfc_data_variable *list, *next;
1931 typedef struct gfc_data_value
1935 struct gfc_data_value *next;
1940 typedef struct gfc_data
1942 gfc_data_variable *var;
1943 gfc_data_value *value;
1946 struct gfc_data *next;
1951 /* Structure for holding compile options */
1955 gfc_source_form source_form;
1956 /* Maximum line lengths in fixed- and free-form source, respectively.
1957 When fixed_line_length or free_line_length are 0, the whole line is used,
1958 regardless of length.
1960 If the user requests a fixed_line_length <7 then gfc_init_options()
1961 emits a fatal error. */
1962 int fixed_line_length;
1963 int free_line_length;
1964 /* Maximum number of continuation lines in fixed- and free-form source,
1966 int max_continue_fixed;
1967 int max_continue_free;
1968 int max_identifier_length;
1969 int dump_parse_tree;
1973 int warn_conversion;
1974 int warn_implicit_interface;
1975 int warn_line_truncation;
1976 int warn_surprising;
1979 int warn_intrinsic_shadow;
1980 int warn_intrinsics_std;
1981 int warn_character_truncation;
1982 int warn_array_temp;
1983 int warn_align_commons;
1986 int flag_all_intrinsics;
1987 int flag_default_double;
1988 int flag_default_integer;
1989 int flag_default_real;
1991 int flag_underscoring;
1992 int flag_second_underscore;
1993 int flag_implicit_none;
1994 int flag_max_stack_var_size;
1995 int flag_max_array_constructor;
1996 int flag_range_check;
1997 int flag_pack_derived;
1998 int flag_repack_arrays;
1999 int flag_preprocessed;
2004 int flag_check_array_temporaries;
2005 int flag_allow_leading_underscore;
2007 int flag_external_blas;
2008 int blas_matmul_limit;
2009 int flag_cray_pointer;
2013 int flag_module_private;
2015 int flag_init_local_zero;
2016 int flag_init_integer;
2017 int flag_init_integer_value;
2019 int flag_init_logical;
2020 int flag_init_character;
2021 char flag_init_character_value;
2022 int flag_align_commons;
2031 int max_subrecord_length;
2035 extern gfc_option_t gfc_option;
2037 /* Constructor nodes for array and structure constructors. */
2038 typedef struct gfc_constructor
2041 gfc_iterator *iterator;
2043 struct gfc_constructor *next;
2046 mpz_t offset; /* Record the offset of array element which appears in
2047 data statement like "data a(5)/4/". */
2048 gfc_component *component; /* Record the component being initialized. */
2051 mpz_t repeat; /* Record the repeat number of initial values in data
2052 statement like "data a/5*10/". */
2057 typedef struct iterator_stack
2059 gfc_symtree *variable;
2061 struct iterator_stack *prev;
2064 extern iterator_stack *iter_stack;
2067 /* Node in the linked list used for storing finalizer procedures. */
2069 typedef struct gfc_finalizer
2071 struct gfc_finalizer* next;
2072 locus where; /* Where the FINAL declaration occurred. */
2074 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2075 symtree and later need only that. This way, we can access and call the
2076 finalizers from every context as they should be "always accessible". I
2077 don't make this a union because we need the information whether proc_sym is
2078 still referenced or not for dereferencing it on deleting a gfc_finalizer
2080 gfc_symbol* proc_sym;
2081 gfc_symtree* proc_tree;
2084 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2087 /************************ Function prototypes *************************/
2090 bool gfc_in_match_data (void);
2093 void gfc_scanner_done_1 (void);
2094 void gfc_scanner_init_1 (void);
2096 void gfc_add_include_path (const char *, bool, bool);
2097 void gfc_add_intrinsic_modules_path (const char *);
2098 void gfc_release_include_path (void);
2099 FILE *gfc_open_included_file (const char *, bool, bool);
2100 FILE *gfc_open_intrinsic_module (const char *);
2102 int gfc_at_end (void);
2103 int gfc_at_eof (void);
2104 int gfc_at_bol (void);
2105 int gfc_at_eol (void);
2106 void gfc_advance_line (void);
2107 int gfc_check_include (void);
2108 int gfc_define_undef_line (void);
2110 int gfc_wide_is_printable (gfc_char_t);
2111 int gfc_wide_is_digit (gfc_char_t);
2112 int gfc_wide_fits_in_byte (gfc_char_t);
2113 gfc_char_t gfc_wide_tolower (gfc_char_t);
2114 gfc_char_t gfc_wide_toupper (gfc_char_t);
2115 size_t gfc_wide_strlen (const gfc_char_t *);
2116 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2117 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2118 char *gfc_widechar_to_char (const gfc_char_t *, int);
2119 gfc_char_t *gfc_char_to_widechar (const char *);
2121 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2123 void gfc_skip_comments (void);
2124 gfc_char_t gfc_next_char_literal (int);
2125 gfc_char_t gfc_next_char (void);
2126 char gfc_next_ascii_char (void);
2127 gfc_char_t gfc_peek_char (void);
2128 char gfc_peek_ascii_char (void);
2129 void gfc_error_recovery (void);
2130 void gfc_gobble_whitespace (void);
2131 gfc_try gfc_new_file (void);
2132 const char * gfc_read_orig_filename (const char *, const char **);
2134 extern gfc_source_form gfc_current_form;
2135 extern const char *gfc_source_file;
2136 extern locus gfc_current_locus;
2138 void gfc_start_source_files (void);
2139 void gfc_end_source_files (void);
2142 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2143 void gfc_free (void *);
2144 int gfc_terminal_width (void);
2145 void gfc_clear_ts (gfc_typespec *);
2146 FILE *gfc_open_file (const char *);
2147 const char *gfc_basic_typename (bt);
2148 const char *gfc_typename (gfc_typespec *);
2149 const char *gfc_op2string (gfc_intrinsic_op);
2150 const char *gfc_code2string (const mstring *, int);
2151 int gfc_string2code (const mstring *, const char *);
2152 const char *gfc_intent_string (sym_intent);
2154 void gfc_init_1 (void);
2155 void gfc_init_2 (void);
2156 void gfc_done_1 (void);
2157 void gfc_done_2 (void);
2159 int get_c_kind (const char *, CInteropKind_t *);
2162 unsigned int gfc_init_options (unsigned int, const char **);
2163 int gfc_handle_option (size_t, const char *, int);
2164 bool gfc_post_options (const char **);
2167 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2168 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2172 typedef struct gfc_error_buf
2175 size_t allocated, index;
2179 void gfc_error_init_1 (void);
2180 void gfc_buffer_error (int);
2182 const char *gfc_print_wide_char (gfc_char_t);
2184 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2185 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2186 void gfc_clear_warning (void);
2187 void gfc_warning_check (void);
2189 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2190 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2191 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2192 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2193 void gfc_clear_error (void);
2194 int gfc_error_check (void);
2195 int gfc_error_flag_test (void);
2197 notification gfc_notification_std (int);
2198 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2200 /* A general purpose syntax error. */
2201 #define gfc_syntax_error(ST) \
2202 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2204 void gfc_push_error (gfc_error_buf *);
2205 void gfc_pop_error (gfc_error_buf *);
2206 void gfc_free_error (gfc_error_buf *);
2208 void gfc_get_errors (int *, int *);
2211 void gfc_arith_init_1 (void);
2212 void gfc_arith_done_1 (void);
2213 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
2214 arith gfc_check_integer_range (mpz_t p, int kind);
2215 bool gfc_check_character_range (gfc_char_t, int);
2218 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2219 int gfc_validate_kind (bt, int, bool);
2220 extern int gfc_index_integer_kind;
2221 extern int gfc_default_integer_kind;
2222 extern int gfc_max_integer_kind;
2223 extern int gfc_default_real_kind;
2224 extern int gfc_default_double_kind;
2225 extern int gfc_default_character_kind;
2226 extern int gfc_default_logical_kind;
2227 extern int gfc_default_complex_kind;
2228 extern int gfc_c_int_kind;
2229 extern int gfc_intio_kind;
2230 extern int gfc_charlen_int_kind;
2231 extern int gfc_numeric_storage_size;
2232 extern int gfc_character_storage_size;
2235 void gfc_clear_new_implicit (void);
2236 gfc_try gfc_add_new_implicit_range (int, int);
2237 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2238 void gfc_set_implicit_none (void);
2239 void gfc_check_function_type (gfc_namespace *);
2240 bool gfc_is_intrinsic_typename (const char *);
2242 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
2243 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2245 void gfc_set_sym_referenced (gfc_symbol *);
2247 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2248 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2249 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2250 gfc_try gfc_add_external (symbol_attribute *, locus *);
2251 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2252 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2253 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2254 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2255 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2256 gfc_try gfc_mod_pointee_as (gfc_array_spec *);
2257 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2258 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2259 gfc_try gfc_add_save (symbol_attribute *, const char *, locus *);
2260 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2261 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2262 gfc_try gfc_add_target (symbol_attribute *, locus *);
2263 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2264 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2265 gfc_try gfc_add_common (symbol_attribute *, locus *);
2266 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2267 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2268 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2269 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2270 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2271 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2272 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2273 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2274 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2275 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2276 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2277 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2278 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2280 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2281 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2282 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2283 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2284 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2285 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2286 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2287 const char *, locus *);
2288 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2289 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2290 gfc_formal_arglist *, locus *);
2291 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2293 void gfc_clear_attr (symbol_attribute *);
2294 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2295 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2297 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2298 gfc_symbol *gfc_use_derived (gfc_symbol *);
2299 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2300 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2302 gfc_st_label *gfc_get_st_label (int);
2303 void gfc_free_st_label (gfc_st_label *);
2304 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2305 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2307 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2309 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2310 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2311 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2312 void gfc_delete_symtree (gfc_symtree **, const char *);
2313 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2314 gfc_user_op *gfc_get_uop (const char *);
2315 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2316 void gfc_free_symbol (gfc_symbol *);
2317 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2318 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2319 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2320 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2321 gfc_try verify_c_interop (gfc_typespec *);
2322 gfc_try verify_c_interop_param (gfc_symbol *);
2323 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2324 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2325 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2326 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2327 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2328 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
2329 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2330 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2332 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2334 void gfc_undo_symbols (void);
2335 void gfc_commit_symbols (void);
2336 void gfc_commit_symbol (gfc_symbol *);
2337 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2338 void gfc_free_namespace (gfc_namespace *);
2340 void gfc_symbol_init_2 (void);
2341 void gfc_symbol_done_2 (void);
2343 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2344 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2345 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2346 void gfc_save_all (gfc_namespace *);
2348 void gfc_symbol_state (void);
2350 gfc_gsymbol *gfc_get_gsymbol (const char *);
2351 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2353 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2354 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*, const char*, bool);
2356 void copy_formal_args (gfc_symbol *dest, gfc_symbol *src);
2358 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2360 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2363 extern int gfc_init_expr;
2365 /* Given a symbol that we have decided is intrinsic, mark it as such
2366 by placing it into a special module that is otherwise impossible to
2369 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2371 void gfc_intrinsic_init_1 (void);
2372 void gfc_intrinsic_done_1 (void);
2374 char gfc_type_letter (bt);
2375 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2376 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2377 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2378 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2379 int gfc_generic_intrinsic (const char *);
2380 int gfc_specific_intrinsic (const char *);
2381 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2382 int gfc_intrinsic_actual_ok (const char *, const bool);
2383 gfc_intrinsic_sym *gfc_find_function (const char *);
2384 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2386 match gfc_intrinsic_func_interface (gfc_expr *, int);
2387 match gfc_intrinsic_sub_interface (gfc_code *, int);
2389 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2390 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2393 /* match.c -- FIXME */
2394 void gfc_free_iterator (gfc_iterator *, int);
2395 void gfc_free_forall_iterator (gfc_forall_iterator *);
2396 void gfc_free_alloc_list (gfc_alloc *);
2397 void gfc_free_namelist (gfc_namelist *);
2398 void gfc_free_equiv (gfc_equiv *);
2399 void gfc_free_data (gfc_data *);
2400 void gfc_free_case_list (gfc_case *);
2402 /* matchexp.c -- FIXME too? */
2403 gfc_expr *gfc_get_parentheses (gfc_expr *);
2406 void gfc_free_omp_clauses (gfc_omp_clauses *);
2407 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2408 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2409 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2410 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2413 void gfc_free_actual_arglist (gfc_actual_arglist *);
2414 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2415 const char *gfc_extract_int (gfc_expr *, int *);
2416 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2417 bool is_subref_array (gfc_expr *);
2419 gfc_expr *gfc_build_conversion (gfc_expr *);
2420 void gfc_free_ref_list (gfc_ref *);
2421 void gfc_type_convert_binary (gfc_expr *);
2422 int gfc_is_constant_expr (gfc_expr *);
2423 gfc_try gfc_simplify_expr (gfc_expr *, int);
2424 int gfc_has_vector_index (gfc_expr *);
2426 gfc_expr *gfc_get_expr (void);
2427 void gfc_free_expr (gfc_expr *);
2428 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2429 gfc_expr *gfc_int_expr (int);
2430 gfc_expr *gfc_logical_expr (int, locus *);
2431 mpz_t *gfc_copy_shape (mpz_t *, int);
2432 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2433 gfc_expr *gfc_copy_expr (gfc_expr *);
2434 gfc_ref* gfc_copy_ref (gfc_ref*);
2436 gfc_try gfc_specification_expr (gfc_expr *);
2438 int gfc_numeric_ts (gfc_typespec *);
2439 int gfc_kind_max (gfc_expr *, gfc_expr *);
2441 gfc_try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2442 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2443 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2444 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2446 gfc_expr *gfc_default_initializer (gfc_typespec *);
2447 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2449 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2450 bool (*)(gfc_expr *, gfc_symbol *, int*),
2452 void gfc_expr_set_symbols_referenced (gfc_expr *);
2453 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2454 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2457 extern gfc_code new_st;
2459 void gfc_clear_new_st (void);
2460 gfc_code *gfc_get_code (void);
2461 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2462 void gfc_free_statement (gfc_code *);
2463 void gfc_free_statements (gfc_code *);
2466 gfc_try gfc_resolve_expr (gfc_expr *);
2467 void gfc_resolve (gfc_namespace *);
2468 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2469 int gfc_impure_variable (gfc_symbol *);
2470 int gfc_pure (gfc_symbol *);
2471 int gfc_elemental (gfc_symbol *);
2472 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2473 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2474 gfc_try gfc_resolve_index (gfc_expr *, int);
2475 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2476 int gfc_is_formal_arg (void);
2477 void gfc_resolve_substring_charlen (gfc_expr *);
2478 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2482 void gfc_free_array_spec (gfc_array_spec *);
2483 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2485 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2486 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2487 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2489 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2491 gfc_expr *gfc_start_constructor (bt, int, locus *);
2492 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2493 void gfc_free_constructor (gfc_constructor *);
2494 void gfc_simplify_iterator_var (gfc_expr *);
2495 gfc_try gfc_expand_constructor (gfc_expr *);
2496 int gfc_constant_ac (gfc_expr *);
2497 int gfc_expanded_ac (gfc_expr *);
2498 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2499 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2500 gfc_try gfc_check_constructor_type (gfc_expr *);
2501 gfc_try gfc_check_iter_variable (gfc_expr *);
2502 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2503 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2504 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2505 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2506 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2507 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2508 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2509 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2510 gfc_constructor *gfc_get_constructor (void);
2511 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2512 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2513 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2514 int gfc_is_compile_time_shape (gfc_array_spec *);
2516 /* interface.c -- FIXME: some of these should be in symbol.c */
2517 void gfc_free_interface (gfc_interface *);
2518 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2519 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2520 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, int);
2521 void gfc_check_interfaces (gfc_namespace *);
2522 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2523 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2524 gfc_actual_arglist **);
2525 gfc_try gfc_extend_expr (gfc_expr *);
2526 void gfc_free_formal_arglist (gfc_formal_arglist *);
2527 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2528 gfc_try gfc_add_interface (gfc_symbol *);
2529 gfc_interface *gfc_current_interface_head (void);
2530 void gfc_set_current_interface_head (gfc_interface *);
2531 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2532 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2535 extern gfc_st_label format_asterisk;
2537 void gfc_free_open (gfc_open *);
2538 gfc_try gfc_resolve_open (gfc_open *);
2539 void gfc_free_close (gfc_close *);
2540 gfc_try gfc_resolve_close (gfc_close *);
2541 void gfc_free_filepos (gfc_filepos *);
2542 gfc_try gfc_resolve_filepos (gfc_filepos *);
2543 void gfc_free_inquire (gfc_inquire *);
2544 gfc_try gfc_resolve_inquire (gfc_inquire *);
2545 void gfc_free_dt (gfc_dt *);
2546 gfc_try gfc_resolve_dt (gfc_dt *);
2547 void gfc_free_wait (gfc_wait *);
2548 gfc_try gfc_resolve_wait (gfc_wait *);
2551 void gfc_module_init_2 (void);
2552 void gfc_module_done_2 (void);
2553 void gfc_dump_module (const char *, int);
2554 bool gfc_check_access (gfc_access, gfc_access);
2555 void gfc_free_use_stmts (gfc_use_list *);
2558 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2559 symbol_attribute gfc_expr_attr (gfc_expr *);
2560 match gfc_match_rvalue (gfc_expr **);
2561 match gfc_match_varspec (gfc_expr*, int, bool);
2562 int gfc_check_digit (char, int);
2565 void gfc_generate_code (gfc_namespace *);
2566 void gfc_generate_module_code (gfc_namespace *);
2569 typedef int (*compare_fn) (void *, void *);
2570 void gfc_insert_bbt (void *, void *, compare_fn);
2571 void gfc_delete_bbt (void *, void *, compare_fn);
2573 /* dump-parse-tree.c */
2574 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2577 gfc_try gfc_parse_file (void);
2578 void gfc_global_used (gfc_gsymbol *, locus *);
2581 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2583 #endif /* GCC_GFORTRAN_H */