1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
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,
532 GFC_INIT_REAL_NEG_INF
538 GFC_INIT_LOGICAL_OFF = 0,
539 GFC_INIT_LOGICAL_FALSE,
540 GFC_INIT_LOGICAL_TRUE
546 GFC_INIT_CHARACTER_OFF = 0,
547 GFC_INIT_CHARACTER_ON
549 init_local_character;
553 GFC_INIT_INTEGER_OFF = 0,
558 /************************* Structures *****************************/
560 /* Used for keeping things in balanced binary trees. */
561 #define BBT_HEADER(self) int priority; struct self *left, *right
563 #define NAMED_INTCST(a,b,c,d) a,
566 ISOFORTRANENV_INVALID = -1,
567 #include "iso-fortran-env.def"
568 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
570 iso_fortran_env_symbol;
573 #define NAMED_INTCST(a,b,c,d) a,
574 #define NAMED_REALCST(a,b,c) a,
575 #define NAMED_CMPXCST(a,b,c) a,
576 #define NAMED_LOGCST(a,b,c) a,
577 #define NAMED_CHARKNDCST(a,b,c) a,
578 #define NAMED_CHARCST(a,b,c) a,
579 #define DERIVED_TYPE(a,b,c) a,
580 #define PROCEDURE(a,b) a,
583 ISOCBINDING_INVALID = -1,
584 #include "iso-c-binding.def"
586 ISOCBINDING_NUMBER = ISOCBINDING_LAST
588 iso_c_binding_symbol;
593 #undef NAMED_CHARKNDCST
600 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
606 char name[GFC_MAX_SYMBOL_LEN + 1];
607 int value; /* Used for both integer and character values. */
612 /* Array of structs, where the structs represent the C interop kinds.
613 The list will be implemented based on a hash of the kind name since
614 these could be accessed multiple times.
615 Declared in trans-types.c as a global, since it's in that file
616 that the list is initialized. */
617 extern CInteropKind_t c_interop_kinds_table[];
619 /* Symbol attribute structure. */
622 /* Variable attributes. */
623 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
624 optional:1, pointer:1, target:1, value:1, volatile_:1,
625 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
626 implied_index:1, subref_array_pointer:1, proc_pointer:1;
628 ENUM_BITFIELD (save_state) save:2;
630 unsigned data:1, /* Symbol is named in a DATA statement. */
631 is_protected:1, /* Symbol has been marked as protected. */
632 use_assoc:1, /* Symbol has been use-associated. */
633 use_only:1, /* Symbol has been use-associated, with ONLY. */
634 use_rename:1, /* Symbol has been use-associated and renamed. */
635 imported:1; /* Symbol has been associated by IMPORT. */
637 unsigned in_namelist:1, in_common:1, in_equivalence:1;
638 unsigned function:1, subroutine:1, procedure:1;
639 unsigned generic:1, generic_copy:1;
640 unsigned implicit_type:1; /* Type defined via implicit rules. */
641 unsigned untyped:1; /* No implicit type could be found. */
643 unsigned is_bind_c:1; /* say if is bound to C. */
644 unsigned extension:1; /* extends a derived type. */
646 /* These flags are both in the typespec and attribute. The attribute
647 list is what gets read from/written to a module file. The typespec
648 is created from a decl being processed. */
649 unsigned is_c_interop:1; /* It's c interoperable. */
650 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
652 /* Function/subroutine attributes */
653 unsigned sequence:1, elemental:1, pure:1, recursive:1;
654 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
656 /* This is set if the subroutine doesn't return. Currently, this
657 is only possible for intrinsic subroutines. */
660 /* Set if this procedure is an alternate entry point. These procedures
661 don't have any code associated, and the backend will turn them into
662 thunks to the master function. */
665 /* Set if this is the master function for a procedure with multiple
667 unsigned entry_master:1;
669 /* Set if this is the master function for a function with multiple
670 entry points where characteristics of the entry points differ. */
671 unsigned mixed_entry_master:1;
673 /* Set if a function must always be referenced by an explicit interface. */
674 unsigned always_explicit:1;
676 /* Set if the symbol has been referenced in an expression. No further
677 modification of type or type parameters is permitted. */
678 unsigned referenced:1;
680 /* Set if the symbol has ambiguous interfaces. */
681 unsigned ambiguous_interfaces:1;
683 /* Set if this is the symbol for the main program. */
684 unsigned is_main_program:1;
686 /* Mutually exclusive multibit attributes. */
687 ENUM_BITFIELD (gfc_access) access:2;
688 ENUM_BITFIELD (sym_intent) intent:2;
689 ENUM_BITFIELD (sym_flavor) flavor:4;
690 ENUM_BITFIELD (ifsrc) if_source:2;
692 ENUM_BITFIELD (procedure_type) proc:3;
694 /* Special attributes for Cray pointers, pointees. */
695 unsigned cray_pointer:1, cray_pointee:1;
697 /* The symbol is a derived type with allocatable components, pointer
698 components or private components, possibly nested. zero_comp
699 is true if the derived type has no component at all. */
700 unsigned alloc_comp:1, pointer_comp:1, private_comp:1, zero_comp:1;
702 /* The namespace where the VOLATILE attribute has been set. */
703 struct gfc_namespace *volatile_ns;
708 /* We need to store source lines as sequences of multibyte source
709 characters. We define here a type wide enough to hold any multibyte
710 source character, just like libcpp does. A 32-bit type is enough. */
712 #if HOST_BITS_PER_INT >= 32
713 typedef unsigned int gfc_char_t;
714 #elif HOST_BITS_PER_LONG >= 32
715 typedef unsigned long gfc_char_t;
716 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
717 typedef unsigned long long gfc_char_t;
719 # error "Cannot find an integer type with at least 32 bits"
723 /* The following three structures are used to identify a location in
726 gfc_file is used to maintain a tree of the source files and how
727 they include each other
729 gfc_linebuf holds a single line of source code and information
730 which file it resides in
732 locus point to the sourceline and the character in the source
736 typedef struct gfc_file
738 struct gfc_file *next, *up;
739 int inclusion_line, line;
743 typedef struct gfc_linebuf
745 source_location location;
746 struct gfc_file *file;
747 struct gfc_linebuf *next;
755 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
757 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
765 /* In order for the "gfc" format checking to work correctly, you must
766 have declared a typedef locus first. */
767 #if GCC_VERSION >= 4001
768 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
770 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
774 /* Suppress error messages or re-enable them. */
776 void gfc_push_suppress_errors (void);
777 void gfc_pop_suppress_errors (void);
780 /* Character length structures hold the expression that gives the
781 length of a character variable. We avoid putting these into
782 gfc_typespec because doing so prevents us from doing structure
783 copies and forces us to deallocate any typespecs we create, as well
784 as structures that contain typespecs. They also can have multiple
785 character typespecs pointing to them.
787 These structures form a singly linked list within the current
788 namespace and are deallocated with the namespace. It is possible to
789 end up with gfc_charlen structures that have nothing pointing to them. */
791 typedef struct gfc_charlen
793 struct gfc_expr *length;
794 struct gfc_charlen *next;
795 bool length_from_typespec; /* Length from explicit array ctor typespec? */
802 #define gfc_get_charlen() XCNEW (gfc_charlen)
804 /* Type specification structure. FIXME: derived and cl could be union??? */
809 struct gfc_symbol *derived;
810 gfc_charlen *cl; /* For character types only. */
811 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
818 /* Array specification. */
821 int rank; /* A rank of zero means that a variable is a scalar. */
823 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
825 /* These two fields are used with the Cray Pointer extension. */
826 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
827 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
828 AS_EXPLICIT, but we want to remember that we
834 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
837 /* Components of derived types. */
838 typedef struct gfc_component
843 symbol_attribute attr;
848 struct gfc_expr *initializer;
849 struct gfc_component *next;
853 #define gfc_get_component() XCNEW (gfc_component)
855 /* Formal argument lists are lists of symbols. */
856 typedef struct gfc_formal_arglist
858 /* Symbol representing the argument at this position in the arglist. */
859 struct gfc_symbol *sym;
860 /* Points to the next formal argument. */
861 struct gfc_formal_arglist *next;
865 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
868 /* The gfc_actual_arglist structure is for actual arguments. */
869 typedef struct gfc_actual_arglist
872 /* Alternate return label when the expr member is null. */
873 struct gfc_st_label *label;
875 /* This is set to the type of an eventual omitted optional
876 argument. This is used to determine if a hidden string length
877 argument has to be added to a function call. */
880 struct gfc_expr *expr;
881 struct gfc_actual_arglist *next;
885 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
888 /* Because a symbol can belong to multiple namelists, they must be
889 linked externally to the symbol itself. */
890 typedef struct gfc_namelist
892 struct gfc_symbol *sym;
893 struct gfc_namelist *next;
897 #define gfc_get_namelist() XCNEW (gfc_namelist)
902 OMP_LIST_FIRSTPRIVATE,
903 OMP_LIST_LASTPRIVATE,
904 OMP_LIST_COPYPRIVATE,
908 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
920 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
924 /* Because a symbol can belong to multiple namelists, they must be
925 linked externally to the symbol itself. */
926 typedef struct gfc_omp_clauses
928 struct gfc_expr *if_expr;
929 struct gfc_expr *num_threads;
930 gfc_namelist *lists[OMP_LIST_NUM];
940 struct gfc_expr *chunk_size;
947 OMP_DEFAULT_FIRSTPRIVATE
950 bool nowait, ordered, untied;
954 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
957 /* The gfc_st_label structure is a doubly linked list attached to a
958 namespace that records the usage of statement labels within that
960 /* TODO: Make format/statement specifics a union. */
961 typedef struct gfc_st_label
963 BBT_HEADER(gfc_st_label);
967 gfc_sl_type defined, referenced;
969 struct gfc_expr *format;
978 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
979 typedef struct gfc_interface
981 struct gfc_symbol *sym;
983 struct gfc_interface *next;
987 #define gfc_get_interface() XCNEW (gfc_interface)
989 /* User operator nodes. These are like stripped down symbols. */
995 struct gfc_namespace *ns;
1001 /* A list of specific bindings that are associated with a generic spec. */
1002 typedef struct gfc_tbp_generic
1004 /* The parser sets specific_st, upon resolution we look for the corresponding
1005 gfc_typebound_proc and set specific for further use. */
1006 struct gfc_symtree* specific_st;
1007 struct gfc_typebound_proc* specific;
1009 struct gfc_tbp_generic* next;
1013 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1016 /* Data needed for type-bound procedures. */
1017 typedef struct gfc_typebound_proc
1019 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1023 struct gfc_symtree* specific;
1024 gfc_tbp_generic* generic;
1029 char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1031 /* The overridden type-bound proc (or GENERIC with this name in the
1032 parent-type) or NULL if non. */
1033 struct gfc_typebound_proc* overridden;
1035 /* Once resolved, we use the position of pass_arg in the formal arglist of
1036 the binding-target procedure to identify it. The first argument has
1037 number 1 here, the second 2, and so on. */
1038 unsigned pass_arg_num;
1040 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1041 unsigned non_overridable:1;
1042 unsigned is_generic:1;
1043 unsigned function:1, subroutine:1;
1044 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1048 #define gfc_get_typebound_proc() XCNEW (gfc_typebound_proc)
1051 /* Symbol nodes. These are important things. They are what the
1052 standard refers to as "entities". The possibly multiple names that
1053 refer to the same entity are accomplished by a binary tree of
1054 symtree structures that is balanced by the red-black method-- more
1055 than one symtree node can point to any given symbol. */
1057 typedef struct gfc_symbol
1059 const char *name; /* Primary name, before renaming */
1060 const char *module; /* Module this symbol came from */
1064 symbol_attribute attr;
1066 /* The formal member points to the formal argument list if the
1067 symbol is a function or subroutine name. If the symbol is a
1068 generic name, the generic member points to the list of
1071 gfc_interface *generic;
1072 gfc_access component_access;
1074 gfc_formal_arglist *formal;
1075 struct gfc_namespace *formal_ns;
1076 struct gfc_namespace *f2k_derived;
1078 struct gfc_expr *value; /* Parameter/Initializer value */
1080 struct gfc_symbol *result; /* function result symbol */
1081 gfc_component *components; /* Derived type components */
1083 /* Defined only for Cray pointees; points to their pointer. */
1084 struct gfc_symbol *cp_pointer;
1086 struct gfc_symbol *common_next; /* Links for COMMON syms */
1088 /* This is in fact a gfc_common_head but it is only used for pointer
1089 comparisons to check if symbols are in the same common block. */
1090 struct gfc_common_head* common_head;
1092 /* Make sure setup code for dummy arguments is generated in the correct
1098 gfc_namelist *namelist, *namelist_tail;
1100 /* Change management fields. Symbols that might be modified by the
1101 current statement have the mark member nonzero and are kept in a
1102 singly linked list through the tlink field. Of these symbols,
1103 symbols with old_symbol equal to NULL are symbols created within
1104 the current statement. Otherwise, old_symbol points to a copy of
1107 struct gfc_symbol *old_symbol, *tlink;
1108 unsigned mark:1, gfc_new:1;
1109 /* Nonzero if all equivalences associated with this symbol have been
1111 unsigned equiv_built:1;
1112 /* Set if this variable is used as an index name in a FORALL. */
1113 unsigned forall_index:1;
1115 struct gfc_namespace *ns; /* namespace containing this symbol */
1119 /* Identity of the intrinsic module the symbol comes from, or
1120 INTMOD_NONE if it's not imported from a intrinsic module. */
1121 intmod_id from_intmod;
1122 /* Identity of the symbol from intrinsic modules, from enums maintained
1123 separately by each intrinsic module. Used together with from_intmod,
1124 it uniquely identifies a symbol from an intrinsic module. */
1127 /* This may be repetitive, since the typespec now has a binding
1129 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1130 /* Store a reference to the common_block, if this symbol is in one. */
1131 struct gfc_common_head *common_block;
1136 /* This structure is used to keep track of symbols in common blocks. */
1137 typedef struct gfc_common_head
1140 char use_assoc, saved, threadprivate;
1141 char name[GFC_MAX_SYMBOL_LEN + 1];
1142 struct gfc_symbol *head;
1143 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1148 #define gfc_get_common_head() XCNEW (gfc_common_head)
1151 /* A list of all the alternate entry points for a procedure. */
1153 typedef struct gfc_entry_list
1155 /* The symbol for this entry point. */
1157 /* The zero-based id of this entry point. */
1159 /* The LABEL_EXPR marking this entry point. */
1161 /* The next item in the list. */
1162 struct gfc_entry_list *next;
1166 #define gfc_get_entry_list() \
1167 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1169 /* Lists of rename info for the USE statement. */
1171 typedef struct gfc_use_rename
1173 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1174 struct gfc_use_rename *next;
1176 gfc_intrinsic_op op;
1181 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1183 /* A list of all USE statements in a namespace. */
1185 typedef struct gfc_use_list
1187 const char *module_name;
1189 struct gfc_use_rename *rename;
1191 /* Next USE statement. */
1192 struct gfc_use_list *next;
1196 #define gfc_get_use_list() \
1197 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1199 /* Within a namespace, symbols are pointed to by symtree nodes that
1200 are linked together in a balanced binary tree. There can be
1201 several symtrees pointing to the same symbol node via USE
1204 typedef struct gfc_symtree
1206 BBT_HEADER (gfc_symtree);
1211 gfc_symbol *sym; /* Symbol associated with this node */
1213 gfc_common_head *common;
1217 /* Data for type-bound procedures; NULL if no type-bound procedure. */
1218 gfc_typebound_proc* typebound;
1222 /* A linked list of derived types in the namespace. */
1223 typedef struct gfc_dt_list
1225 struct gfc_symbol *derived;
1226 struct gfc_dt_list *next;
1230 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1232 /* A list of all derived types. */
1233 extern gfc_dt_list *gfc_derived_types;
1235 /* A namespace describes the contents of procedure, module or
1237 /* ??? Anything else use these? */
1239 typedef struct gfc_namespace
1241 /* Tree containing all the symbols in this namespace. */
1242 gfc_symtree *sym_root;
1243 /* Tree containing all the user-defined operators in the namespace. */
1244 gfc_symtree *uop_root;
1245 /* Tree containing all the common blocks. */
1246 gfc_symtree *common_root;
1247 /* Linked list of finalizer procedures. */
1248 struct gfc_finalizer *finalizers;
1250 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1251 int set_flag[GFC_LETTERS];
1252 /* Keeps track of the implicit types associated with the letters. */
1253 gfc_typespec default_type[GFC_LETTERS];
1254 /* Store the positions of IMPLICIT statements. */
1255 locus implicit_loc[GFC_LETTERS];
1257 /* If this is a namespace of a procedure, this points to the procedure. */
1258 struct gfc_symbol *proc_name;
1259 /* If this is the namespace of a unit which contains executable
1260 code, this points to it. */
1261 struct gfc_code *code;
1263 /* Points to the equivalences set up in this namespace. */
1264 struct gfc_equiv *equiv;
1266 /* Points to the equivalence groups produced by trans_common. */
1267 struct gfc_equiv_list *equiv_lists;
1269 gfc_interface *op[GFC_INTRINSIC_OPS];
1271 /* Points to the parent namespace, i.e. the namespace of a module or
1272 procedure in which the procedure belonging to this namespace is
1273 contained. The parent namespace points to this namespace either
1274 directly via CONTAINED, or indirectly via the chain built by
1276 struct gfc_namespace *parent;
1277 /* CONTAINED points to the first contained namespace. Sibling
1278 namespaces are chained via SIBLING. */
1279 struct gfc_namespace *contained, *sibling;
1281 gfc_common_head blank_common;
1282 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1284 gfc_st_label *st_labels;
1285 /* This list holds information about all the data initializers in
1287 struct gfc_data *data;
1289 gfc_charlen *cl_list, *old_cl_list;
1291 int save_all, seen_save, seen_implicit_none;
1293 /* Normally we don't need to refcount namespaces. However when we read
1294 a module containing a function with multiple entry points, this
1295 will appear as several functions with the same formal namespace. */
1298 /* A list of all alternate entry points to this procedure (or NULL). */
1299 gfc_entry_list *entries;
1301 /* A list of USE statements in this namespace. */
1302 gfc_use_list *use_stmts;
1304 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1307 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1312 extern gfc_namespace *gfc_current_ns;
1314 /* Global symbols are symbols of global scope. Currently we only use
1315 this to detect collisions already when parsing.
1316 TODO: Extend to verify procedure calls. */
1318 typedef struct gfc_gsymbol
1320 BBT_HEADER(gfc_gsymbol);
1323 const char *sym_name;
1324 const char *mod_name;
1325 const char *binding_label;
1326 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1327 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1334 extern gfc_gsymbol *gfc_gsym_root;
1336 /* Information on interfaces being built. */
1339 interface_type type;
1343 gfc_intrinsic_op op;
1347 extern gfc_interface_info current_interface;
1350 /* Array reference. */
1351 typedef struct gfc_array_ref
1354 int dimen; /* # of components in the reference */
1358 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1359 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1360 *stride[GFC_MAX_DIMENSIONS];
1363 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1364 dimen_type[GFC_MAX_DIMENSIONS];
1366 struct gfc_expr *offset;
1370 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1373 /* Component reference nodes. A variable is stored as an expression
1374 node that points to the base symbol. After that, a singly linked
1375 list of component reference nodes gives the variable's complete
1376 resolution. The array_ref component may be present and comes
1377 before the component component. */
1380 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1383 typedef struct gfc_ref
1389 struct gfc_array_ref ar;
1393 gfc_component *component;
1400 struct gfc_expr *start, *end; /* Substring */
1401 gfc_charlen *length;
1408 struct gfc_ref *next;
1412 #define gfc_get_ref() XCNEW (gfc_ref)
1415 /* Structures representing intrinsic symbols and their arguments lists. */
1416 typedef struct gfc_intrinsic_arg
1418 char name[GFC_MAX_SYMBOL_LEN + 1];
1422 gfc_actual_arglist *actual;
1424 struct gfc_intrinsic_arg *next;
1430 /* Specifies the various kinds of check functions used to verify the
1431 argument lists of intrinsic functions. fX with X an integer refer
1432 to check functions of intrinsics with X arguments. f1m is used for
1433 the MAX and MIN intrinsics which can have an arbitrary number of
1434 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1435 these have special semantics. */
1439 gfc_try (*f0)(void);
1440 gfc_try (*f1)(struct gfc_expr *);
1441 gfc_try (*f1m)(gfc_actual_arglist *);
1442 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1443 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1444 gfc_try (*f3ml)(gfc_actual_arglist *);
1445 gfc_try (*f3red)(gfc_actual_arglist *);
1446 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1448 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1449 struct gfc_expr *, struct gfc_expr *);
1453 /* Like gfc_check_f, these specify the type of the simplification
1454 function associated with an intrinsic. The fX are just like in
1455 gfc_check_f. cc is used for type conversion functions. */
1459 struct gfc_expr *(*f0)(void);
1460 struct gfc_expr *(*f1)(struct gfc_expr *);
1461 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1462 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1464 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1465 struct gfc_expr *, struct gfc_expr *);
1466 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1467 struct gfc_expr *, struct gfc_expr *,
1469 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1473 /* Again like gfc_check_f, these specify the type of the resolution
1474 function associated with an intrinsic. The fX are just like in
1475 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1479 void (*f0)(struct gfc_expr *);
1480 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1481 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1482 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1483 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1485 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1486 struct gfc_expr *, struct gfc_expr *);
1487 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1488 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1489 void (*s1)(struct gfc_code *);
1494 typedef struct gfc_intrinsic_sym
1496 const char *name, *lib_name;
1497 gfc_intrinsic_arg *formal;
1499 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1500 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1504 gfc_simplify_f simplify;
1506 gfc_resolve_f resolve;
1507 struct gfc_intrinsic_sym *specific_head, *next;
1514 /* Expression nodes. The expression node types deserve explanations,
1515 since the last couple can be easily misconstrued:
1517 EXPR_OP Operator node pointing to one or two other nodes
1518 EXPR_FUNCTION Function call, symbol points to function's name
1519 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1520 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1521 which expresses structure, array and substring refs.
1522 EXPR_NULL The NULL pointer value (which also has a basic type).
1523 EXPR_SUBSTRING A substring of a constant string
1524 EXPR_STRUCTURE A structure constructor
1525 EXPR_ARRAY An array constructor.
1526 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1527 component or type-bound procedure. */
1531 #define GFC_RND_MODE GMP_RNDN
1533 typedef struct gfc_expr
1537 gfc_typespec ts; /* These two refer to the overall expression */
1540 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1542 /* Nonnull for functions and structure constructors, the base object for
1544 gfc_symtree *symtree;
1550 /* True if the expression is a call to a function that returns an array,
1551 and if we have decided not to allocate temporary data for that array.
1552 is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1553 denotes a signalling not-a-number. */
1554 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1, is_snan : 1;
1556 /* Sometimes, when an error has been emitted, it is necessary to prevent
1557 it from recurring. */
1558 unsigned int error : 1;
1560 /* Mark and expression where a user operator has been substituted by
1561 a function call in interface.c(gfc_extend_expr). */
1562 unsigned int user_operator : 1;
1564 /* Used to quickly find a given constructor by its offset. */
1565 splay_tree con_by_offset;
1567 /* If an expression comes from a Hollerith constant or compile-time
1568 evaluation of a transfer statement, it may have a prescribed target-
1569 memory representation, and these cannot always be backformed from
1596 gfc_intrinsic_op op;
1598 struct gfc_expr *op1, *op2;
1604 gfc_actual_arglist *actual;
1605 const char *name; /* Points to the ultimate name of the function */
1606 gfc_intrinsic_sym *isym;
1613 gfc_actual_arglist* actual;
1614 gfc_typebound_proc* tbp;
1626 struct gfc_constructor *constructor;
1634 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1636 /* Structures for information associated with different kinds of
1637 numbers. The first set of integer parameters define all there is
1638 to know about a particular kind. The rest of the elements are
1639 computed from the first elements. */
1643 /* Values really representable by the target. */
1644 mpz_t huge, pedantic_min_int, min_int;
1646 int kind, radix, digits, bit_size, range;
1648 /* True if the C type of the given name maps to this precision.
1649 Note that more than one bit can be set. */
1650 unsigned int c_char : 1;
1651 unsigned int c_short : 1;
1652 unsigned int c_int : 1;
1653 unsigned int c_long : 1;
1654 unsigned int c_long_long : 1;
1658 extern gfc_integer_info gfc_integer_kinds[];
1665 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1666 unsigned int c_bool : 1;
1670 extern gfc_logical_info gfc_logical_kinds[];
1675 mpfr_t epsilon, huge, tiny, subnormal;
1676 int kind, radix, digits, min_exponent, max_exponent;
1677 int range, precision;
1679 /* The precision of the type as reported by GET_MODE_PRECISION. */
1682 /* True if the C type of the given name maps to this precision.
1683 Note that more than one bit can be set. */
1684 unsigned int c_float : 1;
1685 unsigned int c_double : 1;
1686 unsigned int c_long_double : 1;
1690 extern gfc_real_info gfc_real_kinds[];
1699 extern gfc_character_info gfc_character_kinds[];
1702 /* Equivalence structures. Equivalent lvalues are linked along the
1703 *eq pointer, equivalence sets are strung along the *next node. */
1704 typedef struct gfc_equiv
1706 struct gfc_equiv *next, *eq;
1713 #define gfc_get_equiv() XCNEW (gfc_equiv)
1715 /* Holds a single equivalence member after processing. */
1716 typedef struct gfc_equiv_info
1719 HOST_WIDE_INT offset;
1720 HOST_WIDE_INT length;
1721 struct gfc_equiv_info *next;
1724 /* Holds equivalence groups, after they have been processed. */
1725 typedef struct gfc_equiv_list
1727 gfc_equiv_info *equiv;
1728 struct gfc_equiv_list *next;
1731 /* gfc_case stores the selector list of a case statement. The *low
1732 and *high pointers can point to the same expression in the case of
1733 a single value. If *high is NULL, the selection is from *low
1734 upwards, if *low is NULL the selection is *high downwards.
1736 This structure has separate fields to allow single and double linked
1737 lists of CASEs at the same time. The singe linked list along the NEXT
1738 field is a list of cases for a single CASE label. The double linked
1739 list along the LEFT/RIGHT fields is used to detect overlap and to
1740 build a table of the cases for SELECT constructs with a CHARACTER
1743 typedef struct gfc_case
1745 /* Where we saw this case. */
1749 /* Case range values. If (low == high), it's a single value. If one of
1750 the labels is NULL, it's an unbounded case. If both are NULL, this
1751 represents the default case. */
1752 gfc_expr *low, *high;
1754 /* Next case label in the list of cases for a single CASE label. */
1755 struct gfc_case *next;
1757 /* Used for detecting overlap, and for code generation. */
1758 struct gfc_case *left, *right;
1760 /* True if this case label can never be matched. */
1765 #define gfc_get_case() XCNEW (gfc_case)
1770 gfc_expr *var, *start, *end, *step;
1774 #define gfc_get_iterator() XCNEW (gfc_iterator)
1777 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1779 typedef struct gfc_alloc
1782 struct gfc_alloc *next;
1786 #define gfc_get_alloc() XCNEW (gfc_alloc)
1791 gfc_expr *unit, *file, *status, *access, *form, *recl,
1792 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1793 *decimal, *encoding, *round, *sign, *asynchronous, *id;
1801 gfc_expr *unit, *status, *iostat, *iomsg;
1809 gfc_expr *unit, *iostat, *iomsg;
1817 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1818 *name, *access, *sequential, *direct, *form, *formatted,
1819 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1820 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1821 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1831 gfc_expr *unit, *iostat, *iomsg, *id;
1832 gfc_st_label *err, *end, *eor;
1839 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1840 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1841 *sign, *extra_comma;
1843 gfc_symbol *namelist;
1844 /* A format_label of `format_asterisk' indicates the "*" format */
1845 gfc_st_label *format_label;
1846 gfc_st_label *err, *end, *eor;
1848 locus eor_where, end_where, err_where;
1853 typedef struct gfc_forall_iterator
1855 gfc_expr *var, *start, *end, *stride;
1856 struct gfc_forall_iterator *next;
1858 gfc_forall_iterator;
1861 /* Executable statements that fill gfc_code structures. */
1864 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1865 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
1866 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1867 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1868 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1869 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1870 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
1871 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1872 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1873 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1874 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1875 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1876 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1877 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1878 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
1882 typedef struct gfc_code
1886 struct gfc_code *block, *next;
1889 gfc_st_label *here, *label, *label2, *label3;
1890 gfc_symtree *symtree;
1891 gfc_expr *expr, *expr2;
1892 /* A name isn't sufficient to identify a subroutine, we need the actual
1893 symbol for the interface definition.
1894 const char *sub_name; */
1895 gfc_symbol *resolved_sym;
1896 gfc_intrinsic_sym *resolved_isym;
1900 gfc_actual_arglist *actual;
1901 gfc_case *case_list;
1902 gfc_iterator *iterator;
1903 gfc_alloc *alloc_list;
1906 gfc_filepos *filepos;
1907 gfc_inquire *inquire;
1910 gfc_forall_iterator *forall_iterator;
1911 struct gfc_code *whichloop;
1913 gfc_entry_list *entry;
1914 gfc_omp_clauses *omp_clauses;
1915 const char *omp_name;
1916 gfc_namelist *omp_namelist;
1919 ext; /* Points to additional structures required by statement */
1921 /* Backend_decl is used for cycle and break labels in do loops, and
1922 probably for other constructs as well, once we translate them. */
1928 /* Storage for DATA statements. */
1929 typedef struct gfc_data_variable
1933 struct gfc_data_variable *list, *next;
1938 typedef struct gfc_data_value
1942 struct gfc_data_value *next;
1947 typedef struct gfc_data
1949 gfc_data_variable *var;
1950 gfc_data_value *value;
1953 struct gfc_data *next;
1958 /* Structure for holding compile options */
1962 gfc_source_form source_form;
1963 /* Maximum line lengths in fixed- and free-form source, respectively.
1964 When fixed_line_length or free_line_length are 0, the whole line is used,
1965 regardless of length.
1967 If the user requests a fixed_line_length <7 then gfc_init_options()
1968 emits a fatal error. */
1969 int fixed_line_length;
1970 int free_line_length;
1971 /* Maximum number of continuation lines in fixed- and free-form source,
1973 int max_continue_fixed;
1974 int max_continue_free;
1975 int max_identifier_length;
1976 int dump_parse_tree;
1980 int warn_conversion;
1981 int warn_implicit_interface;
1982 int warn_line_truncation;
1983 int warn_surprising;
1986 int warn_intrinsic_shadow;
1987 int warn_intrinsics_std;
1988 int warn_character_truncation;
1989 int warn_array_temp;
1990 int warn_align_commons;
1993 int flag_all_intrinsics;
1994 int flag_default_double;
1995 int flag_default_integer;
1996 int flag_default_real;
1998 int flag_underscoring;
1999 int flag_second_underscore;
2000 int flag_implicit_none;
2001 int flag_max_stack_var_size;
2002 int flag_max_array_constructor;
2003 int flag_range_check;
2004 int flag_pack_derived;
2005 int flag_repack_arrays;
2006 int flag_preprocessed;
2011 int flag_check_array_temporaries;
2012 int flag_allow_leading_underscore;
2014 int flag_external_blas;
2015 int blas_matmul_limit;
2016 int flag_cray_pointer;
2020 int flag_module_private;
2022 int flag_init_local_zero;
2023 int flag_init_integer;
2024 int flag_init_integer_value;
2026 int flag_init_logical;
2027 int flag_init_character;
2028 char flag_init_character_value;
2029 int flag_align_commons;
2038 int max_subrecord_length;
2042 extern gfc_option_t gfc_option;
2044 /* Constructor nodes for array and structure constructors. */
2045 typedef struct gfc_constructor
2048 gfc_iterator *iterator;
2050 struct gfc_constructor *next;
2053 mpz_t offset; /* Record the offset of array element which appears in
2054 data statement like "data a(5)/4/". */
2055 gfc_component *component; /* Record the component being initialized. */
2058 mpz_t repeat; /* Record the repeat number of initial values in data
2059 statement like "data a/5*10/". */
2064 typedef struct iterator_stack
2066 gfc_symtree *variable;
2068 struct iterator_stack *prev;
2071 extern iterator_stack *iter_stack;
2074 /* Node in the linked list used for storing finalizer procedures. */
2076 typedef struct gfc_finalizer
2078 struct gfc_finalizer* next;
2079 locus where; /* Where the FINAL declaration occurred. */
2081 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2082 symtree and later need only that. This way, we can access and call the
2083 finalizers from every context as they should be "always accessible". I
2084 don't make this a union because we need the information whether proc_sym is
2085 still referenced or not for dereferencing it on deleting a gfc_finalizer
2087 gfc_symbol* proc_sym;
2088 gfc_symtree* proc_tree;
2091 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2094 /************************ Function prototypes *************************/
2097 bool gfc_in_match_data (void);
2100 void gfc_scanner_done_1 (void);
2101 void gfc_scanner_init_1 (void);
2103 void gfc_add_include_path (const char *, bool, bool);
2104 void gfc_add_intrinsic_modules_path (const char *);
2105 void gfc_release_include_path (void);
2106 FILE *gfc_open_included_file (const char *, bool, bool);
2107 FILE *gfc_open_intrinsic_module (const char *);
2109 int gfc_at_end (void);
2110 int gfc_at_eof (void);
2111 int gfc_at_bol (void);
2112 int gfc_at_eol (void);
2113 void gfc_advance_line (void);
2114 int gfc_check_include (void);
2115 int gfc_define_undef_line (void);
2117 int gfc_wide_is_printable (gfc_char_t);
2118 int gfc_wide_is_digit (gfc_char_t);
2119 int gfc_wide_fits_in_byte (gfc_char_t);
2120 gfc_char_t gfc_wide_tolower (gfc_char_t);
2121 gfc_char_t gfc_wide_toupper (gfc_char_t);
2122 size_t gfc_wide_strlen (const gfc_char_t *);
2123 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2124 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2125 char *gfc_widechar_to_char (const gfc_char_t *, int);
2126 gfc_char_t *gfc_char_to_widechar (const char *);
2128 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2130 void gfc_skip_comments (void);
2131 gfc_char_t gfc_next_char_literal (int);
2132 gfc_char_t gfc_next_char (void);
2133 char gfc_next_ascii_char (void);
2134 gfc_char_t gfc_peek_char (void);
2135 char gfc_peek_ascii_char (void);
2136 void gfc_error_recovery (void);
2137 void gfc_gobble_whitespace (void);
2138 gfc_try gfc_new_file (void);
2139 const char * gfc_read_orig_filename (const char *, const char **);
2141 extern gfc_source_form gfc_current_form;
2142 extern const char *gfc_source_file;
2143 extern locus gfc_current_locus;
2145 void gfc_start_source_files (void);
2146 void gfc_end_source_files (void);
2149 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2150 void gfc_free (void *);
2151 int gfc_terminal_width (void);
2152 void gfc_clear_ts (gfc_typespec *);
2153 FILE *gfc_open_file (const char *);
2154 const char *gfc_basic_typename (bt);
2155 const char *gfc_typename (gfc_typespec *);
2156 const char *gfc_op2string (gfc_intrinsic_op);
2157 const char *gfc_code2string (const mstring *, int);
2158 int gfc_string2code (const mstring *, const char *);
2159 const char *gfc_intent_string (sym_intent);
2161 void gfc_init_1 (void);
2162 void gfc_init_2 (void);
2163 void gfc_done_1 (void);
2164 void gfc_done_2 (void);
2166 int get_c_kind (const char *, CInteropKind_t *);
2169 unsigned int gfc_init_options (unsigned int, const char **);
2170 int gfc_handle_option (size_t, const char *, int);
2171 bool gfc_post_options (const char **);
2174 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2175 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2179 typedef struct gfc_error_buf
2182 size_t allocated, index;
2186 void gfc_error_init_1 (void);
2187 void gfc_buffer_error (int);
2189 const char *gfc_print_wide_char (gfc_char_t);
2191 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2192 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2193 void gfc_clear_warning (void);
2194 void gfc_warning_check (void);
2196 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2197 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2198 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2199 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2200 void gfc_clear_error (void);
2201 int gfc_error_check (void);
2202 int gfc_error_flag_test (void);
2204 notification gfc_notification_std (int);
2205 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2207 /* A general purpose syntax error. */
2208 #define gfc_syntax_error(ST) \
2209 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2211 void gfc_push_error (gfc_error_buf *);
2212 void gfc_pop_error (gfc_error_buf *);
2213 void gfc_free_error (gfc_error_buf *);
2215 void gfc_get_errors (int *, int *);
2218 void gfc_arith_init_1 (void);
2219 void gfc_arith_done_1 (void);
2220 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
2221 arith gfc_check_integer_range (mpz_t p, int kind);
2222 bool gfc_check_character_range (gfc_char_t, int);
2225 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2226 int gfc_validate_kind (bt, int, bool);
2227 extern int gfc_index_integer_kind;
2228 extern int gfc_default_integer_kind;
2229 extern int gfc_max_integer_kind;
2230 extern int gfc_default_real_kind;
2231 extern int gfc_default_double_kind;
2232 extern int gfc_default_character_kind;
2233 extern int gfc_default_logical_kind;
2234 extern int gfc_default_complex_kind;
2235 extern int gfc_c_int_kind;
2236 extern int gfc_intio_kind;
2237 extern int gfc_charlen_int_kind;
2238 extern int gfc_numeric_storage_size;
2239 extern int gfc_character_storage_size;
2242 void gfc_clear_new_implicit (void);
2243 gfc_try gfc_add_new_implicit_range (int, int);
2244 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2245 void gfc_set_implicit_none (void);
2246 void gfc_check_function_type (gfc_namespace *);
2247 bool gfc_is_intrinsic_typename (const char *);
2249 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
2250 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2252 void gfc_set_sym_referenced (gfc_symbol *);
2254 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2255 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2256 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2257 gfc_try gfc_add_external (symbol_attribute *, locus *);
2258 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2259 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2260 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2261 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2262 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2263 gfc_try gfc_mod_pointee_as (gfc_array_spec *);
2264 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2265 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2266 gfc_try gfc_add_save (symbol_attribute *, const char *, locus *);
2267 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2268 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2269 gfc_try gfc_add_target (symbol_attribute *, locus *);
2270 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2271 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2272 gfc_try gfc_add_common (symbol_attribute *, locus *);
2273 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2274 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2275 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2276 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2277 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2278 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2279 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2280 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2281 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2282 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2283 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2284 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2285 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2287 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2288 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2289 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2290 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2291 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2292 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2293 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2294 const char *, locus *);
2295 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2296 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2297 gfc_formal_arglist *, locus *);
2298 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2300 void gfc_clear_attr (symbol_attribute *);
2301 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2302 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2304 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2305 gfc_symbol *gfc_use_derived (gfc_symbol *);
2306 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2307 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2309 gfc_st_label *gfc_get_st_label (int);
2310 void gfc_free_st_label (gfc_st_label *);
2311 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2312 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2314 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2316 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2317 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2318 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2319 void gfc_delete_symtree (gfc_symtree **, const char *);
2320 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2321 gfc_user_op *gfc_get_uop (const char *);
2322 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2323 void gfc_free_symbol (gfc_symbol *);
2324 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2325 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2326 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2327 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2328 gfc_try verify_c_interop (gfc_typespec *);
2329 gfc_try verify_c_interop_param (gfc_symbol *);
2330 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2331 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2332 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2333 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2334 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2335 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
2336 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2337 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2339 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2341 void gfc_undo_symbols (void);
2342 void gfc_commit_symbols (void);
2343 void gfc_commit_symbol (gfc_symbol *);
2344 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2345 void gfc_free_namespace (gfc_namespace *);
2347 void gfc_symbol_init_2 (void);
2348 void gfc_symbol_done_2 (void);
2350 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2351 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2352 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2353 void gfc_save_all (gfc_namespace *);
2355 void gfc_symbol_state (void);
2357 gfc_gsymbol *gfc_get_gsymbol (const char *);
2358 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2360 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2361 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*, const char*, bool);
2363 void copy_formal_args (gfc_symbol *dest, gfc_symbol *src);
2365 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2367 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2370 extern int gfc_init_expr;
2372 /* Given a symbol that we have decided is intrinsic, mark it as such
2373 by placing it into a special module that is otherwise impossible to
2376 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2378 void gfc_intrinsic_init_1 (void);
2379 void gfc_intrinsic_done_1 (void);
2381 char gfc_type_letter (bt);
2382 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2383 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2384 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2385 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2386 int gfc_generic_intrinsic (const char *);
2387 int gfc_specific_intrinsic (const char *);
2388 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2389 int gfc_intrinsic_actual_ok (const char *, const bool);
2390 gfc_intrinsic_sym *gfc_find_function (const char *);
2391 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2393 match gfc_intrinsic_func_interface (gfc_expr *, int);
2394 match gfc_intrinsic_sub_interface (gfc_code *, int);
2396 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2397 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2400 /* match.c -- FIXME */
2401 void gfc_free_iterator (gfc_iterator *, int);
2402 void gfc_free_forall_iterator (gfc_forall_iterator *);
2403 void gfc_free_alloc_list (gfc_alloc *);
2404 void gfc_free_namelist (gfc_namelist *);
2405 void gfc_free_equiv (gfc_equiv *);
2406 void gfc_free_data (gfc_data *);
2407 void gfc_free_case_list (gfc_case *);
2409 /* matchexp.c -- FIXME too? */
2410 gfc_expr *gfc_get_parentheses (gfc_expr *);
2413 void gfc_free_omp_clauses (gfc_omp_clauses *);
2414 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2415 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2416 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2417 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2420 void gfc_free_actual_arglist (gfc_actual_arglist *);
2421 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2422 const char *gfc_extract_int (gfc_expr *, int *);
2423 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2424 bool is_subref_array (gfc_expr *);
2426 gfc_expr *gfc_build_conversion (gfc_expr *);
2427 void gfc_free_ref_list (gfc_ref *);
2428 void gfc_type_convert_binary (gfc_expr *);
2429 int gfc_is_constant_expr (gfc_expr *);
2430 gfc_try gfc_simplify_expr (gfc_expr *, int);
2431 int gfc_has_vector_index (gfc_expr *);
2433 gfc_expr *gfc_get_expr (void);
2434 void gfc_free_expr (gfc_expr *);
2435 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2436 gfc_expr *gfc_int_expr (int);
2437 gfc_expr *gfc_logical_expr (int, locus *);
2438 mpz_t *gfc_copy_shape (mpz_t *, int);
2439 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2440 gfc_expr *gfc_copy_expr (gfc_expr *);
2441 gfc_ref* gfc_copy_ref (gfc_ref*);
2443 gfc_try gfc_specification_expr (gfc_expr *);
2445 int gfc_numeric_ts (gfc_typespec *);
2446 int gfc_kind_max (gfc_expr *, gfc_expr *);
2448 gfc_try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2449 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2450 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2451 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2453 gfc_expr *gfc_default_initializer (gfc_typespec *);
2454 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2456 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2457 bool (*)(gfc_expr *, gfc_symbol *, int*),
2459 void gfc_expr_set_symbols_referenced (gfc_expr *);
2460 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2461 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2464 extern gfc_code new_st;
2466 void gfc_clear_new_st (void);
2467 gfc_code *gfc_get_code (void);
2468 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2469 void gfc_free_statement (gfc_code *);
2470 void gfc_free_statements (gfc_code *);
2473 gfc_try gfc_resolve_expr (gfc_expr *);
2474 void gfc_resolve (gfc_namespace *);
2475 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2476 int gfc_impure_variable (gfc_symbol *);
2477 int gfc_pure (gfc_symbol *);
2478 int gfc_elemental (gfc_symbol *);
2479 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2480 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2481 gfc_try gfc_resolve_index (gfc_expr *, int);
2482 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2483 int gfc_is_formal_arg (void);
2484 void gfc_resolve_substring_charlen (gfc_expr *);
2485 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2489 void gfc_free_array_spec (gfc_array_spec *);
2490 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2492 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2493 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2494 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2496 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2498 gfc_expr *gfc_start_constructor (bt, int, locus *);
2499 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2500 void gfc_free_constructor (gfc_constructor *);
2501 void gfc_simplify_iterator_var (gfc_expr *);
2502 gfc_try gfc_expand_constructor (gfc_expr *);
2503 int gfc_constant_ac (gfc_expr *);
2504 int gfc_expanded_ac (gfc_expr *);
2505 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2506 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2507 gfc_try gfc_check_constructor_type (gfc_expr *);
2508 gfc_try gfc_check_iter_variable (gfc_expr *);
2509 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2510 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2511 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2512 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2513 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2514 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2515 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2516 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2517 gfc_constructor *gfc_get_constructor (void);
2518 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2519 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2520 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2521 int gfc_is_compile_time_shape (gfc_array_spec *);
2523 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *);
2526 /* interface.c -- FIXME: some of these should be in symbol.c */
2527 void gfc_free_interface (gfc_interface *);
2528 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2529 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2530 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, int);
2531 void gfc_check_interfaces (gfc_namespace *);
2532 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2533 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2534 gfc_actual_arglist **);
2535 gfc_try gfc_extend_expr (gfc_expr *);
2536 void gfc_free_formal_arglist (gfc_formal_arglist *);
2537 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2538 gfc_try gfc_add_interface (gfc_symbol *);
2539 gfc_interface *gfc_current_interface_head (void);
2540 void gfc_set_current_interface_head (gfc_interface *);
2541 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2542 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2545 extern gfc_st_label format_asterisk;
2547 void gfc_free_open (gfc_open *);
2548 gfc_try gfc_resolve_open (gfc_open *);
2549 void gfc_free_close (gfc_close *);
2550 gfc_try gfc_resolve_close (gfc_close *);
2551 void gfc_free_filepos (gfc_filepos *);
2552 gfc_try gfc_resolve_filepos (gfc_filepos *);
2553 void gfc_free_inquire (gfc_inquire *);
2554 gfc_try gfc_resolve_inquire (gfc_inquire *);
2555 void gfc_free_dt (gfc_dt *);
2556 gfc_try gfc_resolve_dt (gfc_dt *);
2557 void gfc_free_wait (gfc_wait *);
2558 gfc_try gfc_resolve_wait (gfc_wait *);
2561 void gfc_module_init_2 (void);
2562 void gfc_module_done_2 (void);
2563 void gfc_dump_module (const char *, int);
2564 bool gfc_check_access (gfc_access, gfc_access);
2565 void gfc_free_use_stmts (gfc_use_list *);
2568 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2569 symbol_attribute gfc_expr_attr (gfc_expr *);
2570 match gfc_match_rvalue (gfc_expr **);
2571 match gfc_match_varspec (gfc_expr*, int, bool);
2572 int gfc_check_digit (char, int);
2575 void gfc_generate_code (gfc_namespace *);
2576 void gfc_generate_module_code (gfc_namespace *);
2579 typedef int (*compare_fn) (void *, void *);
2580 void gfc_insert_bbt (void *, void *, compare_fn);
2581 void gfc_delete_bbt (void *, void *, compare_fn);
2583 /* dump-parse-tree.c */
2584 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2587 gfc_try gfc_parse_file (void);
2588 void gfc_global_used (gfc_gsymbol *, locus *);
2591 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2592 int gfc_is_data_pointer (gfc_expr *);
2595 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2597 #endif /* GCC_GFORTRAN_H */