1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
4 Free Software Foundation, Inc.
5 Contributed by Andy Vaught
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 #ifndef GCC_GFORTRAN_H
24 #define GCC_GFORTRAN_H
26 /* It's probably insane to have this large of a header file, but it
27 seemed like everything had to be recompiled anyway when a change
28 was made to a header file, and there were ordering issues with
29 multiple header files. Besides, Microsoft's winnt.h was 250k last
30 time I looked, so by comparison this is perfectly reasonable. */
32 /* Declarations common to the front-end and library are put in
33 libgfortran/libgfortran_frontend.h */
34 #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, BT_LOGICAL, BT_CHARACTER,
146 BT_DERIVED, BT_CLASS, BT_PROCEDURE, BT_HOLLERITH, BT_VOID
150 /* Expression node types. */
152 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
153 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC
159 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
160 AS_ASSUMED_SIZE, AS_UNKNOWN
165 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
168 /* Statement label types. */
170 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
171 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
175 /* Intrinsic operators. */
177 { GFC_INTRINSIC_BEGIN = 0,
178 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
179 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
180 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
181 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
182 /* ==, /=, >, >=, <, <= */
183 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
184 INTRINSIC_LT, INTRINSIC_LE,
185 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
186 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
187 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
188 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
189 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
194 /* This macro is the number of intrinsic operators that exist.
195 Assumptions are made about the numbering of the interface_op enums. */
196 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
198 /* Arithmetic results. */
200 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
201 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT
208 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE,
209 ST_BACKSPACE, ST_BLOCK, 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_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA,
213 ST_ENDDO, ST_IMPLIED_ENDDO,
214 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
215 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
216 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
217 ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION,
218 ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT,
219 ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY, ST_SYNC_IMAGES,
220 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
221 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
222 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT,
223 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
224 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
225 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS,
226 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
227 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
228 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
229 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
230 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
231 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
232 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
233 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
234 ST_OMP_TASKWAIT, ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL,
235 ST_GET_FCN_CHARACTERISTICS, ST_NONE
240 /* Types of interfaces that we can have. Assignment interfaces are
241 considered to be intrinsic operators. */
244 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
245 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
249 /* Symbol flavors: these are all mutually exclusive.
250 10 elements = 4 bits. */
251 typedef enum sym_flavor
253 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
254 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
259 /* Procedure types. 7 elements = 3 bits. */
260 typedef enum procedure_type
261 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
262 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
267 typedef enum sym_intent
268 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
273 typedef enum gfc_access
274 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
278 /* Flags to keep track of where an interface came from.
279 3 elements = 2 bits. */
281 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */
282 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */
283 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement
284 with explicit interface. */
288 /* Whether a SAVE attribute was set explicitly or implicitly. */
289 typedef enum save_state
290 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
294 /* Strings for all symbol attributes. We use these for dumping the
295 parse tree, in error messages, and also when reading and writing
296 modules. In symbol.c. */
297 extern const mstring flavors[];
298 extern const mstring procedures[];
299 extern const mstring intents[];
300 extern const mstring access_types[];
301 extern const mstring ifsrc_types[];
302 extern const mstring save_status[];
304 /* Enumeration of all the generic intrinsic functions. Used by the
305 backend for identification of a function. */
309 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
310 the backend (e.g. KIND). */
341 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
351 GFC_ISYM_DATE_AND_TIME,
355 GFC_ISYM_DOT_PRODUCT,
362 GFC_ISYM_ERFC_SCALED,
367 GFC_ISYM_EXTENDS_TYPE_OF,
384 GFC_ISYM_GET_COMMAND,
385 GFC_ISYM_GET_COMMAND_ARGUMENT,
388 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
407 GFC_ISYM_IMAGE_INDEX,
415 GFC_ISYM_IS_IOSTAT_END,
416 GFC_ISYM_IS_IOSTAT_EOR,
448 GFC_ISYM_MAXEXPONENT,
455 GFC_ISYM_MINEXPONENT,
476 GFC_ISYM_RANDOM_NUMBER,
477 GFC_ISYM_RANDOM_SEED,
485 GFC_ISYM_SAME_TYPE_AS,
491 GFC_ISYM_SET_EXPONENT,
511 GFC_ISYM_SYSTEM_CLOCK,
534 typedef enum gfc_isym_id gfc_isym_id;
539 GFC_INIT_REAL_OFF = 0,
544 GFC_INIT_REAL_NEG_INF
550 GFC_INIT_LOGICAL_OFF = 0,
551 GFC_INIT_LOGICAL_FALSE,
552 GFC_INIT_LOGICAL_TRUE
558 GFC_INIT_CHARACTER_OFF = 0,
559 GFC_INIT_CHARACTER_ON
561 init_local_character;
565 GFC_INIT_INTEGER_OFF = 0,
572 GFC_FCOARRAY_NONE = 0,
577 /************************* Structures *****************************/
579 /* Used for keeping things in balanced binary trees. */
580 #define BBT_HEADER(self) int priority; struct self *left, *right
582 #define NAMED_INTCST(a,b,c,d) a,
585 ISOFORTRANENV_INVALID = -1,
586 #include "iso-fortran-env.def"
587 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
589 iso_fortran_env_symbol;
592 #define NAMED_INTCST(a,b,c,d) a,
593 #define NAMED_REALCST(a,b,c) a,
594 #define NAMED_CMPXCST(a,b,c) a,
595 #define NAMED_LOGCST(a,b,c) a,
596 #define NAMED_CHARKNDCST(a,b,c) a,
597 #define NAMED_CHARCST(a,b,c) a,
598 #define DERIVED_TYPE(a,b,c) a,
599 #define PROCEDURE(a,b) a,
602 ISOCBINDING_INVALID = -1,
603 #include "iso-c-binding.def"
605 ISOCBINDING_NUMBER = ISOCBINDING_LAST
607 iso_c_binding_symbol;
612 #undef NAMED_CHARKNDCST
619 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
625 char name[GFC_MAX_SYMBOL_LEN + 1];
626 int value; /* Used for both integer and character values. */
631 /* Array of structs, where the structs represent the C interop kinds.
632 The list will be implemented based on a hash of the kind name since
633 these could be accessed multiple times.
634 Declared in trans-types.c as a global, since it's in that file
635 that the list is initialized. */
636 extern CInteropKind_t c_interop_kinds_table[];
639 /* Structure and list of supported extension attributes. */
642 EXT_ATTR_DLLIMPORT = 0,
647 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
655 const char *middle_end_name;
659 extern const ext_attr_t ext_attr_list[];
661 /* Symbol attribute structure. */
664 /* Variable attributes. */
665 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1,
666 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
667 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
668 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1,
671 /* For CLASS containers, the pointer attribute is sometimes set internally
672 even though it was not directly specified. In this case, keep the
673 "real" (original) value here. */
674 unsigned class_pointer:1;
676 ENUM_BITFIELD (save_state) save:2;
678 unsigned data:1, /* Symbol is named in a DATA statement. */
679 is_protected:1, /* Symbol has been marked as protected. */
680 use_assoc:1, /* Symbol has been use-associated. */
681 use_only:1, /* Symbol has been use-associated, with ONLY. */
682 use_rename:1, /* Symbol has been use-associated and renamed. */
683 imported:1; /* Symbol has been associated by IMPORT. */
685 unsigned in_namelist:1, in_common:1, in_equivalence:1;
686 unsigned function:1, subroutine:1, procedure:1;
687 unsigned generic:1, generic_copy:1;
688 unsigned implicit_type:1; /* Type defined via implicit rules. */
689 unsigned untyped:1; /* No implicit type could be found. */
691 unsigned is_bind_c:1; /* say if is bound to C. */
692 unsigned extension:8; /* extension level of a derived type. */
693 unsigned is_class:1; /* is a CLASS container. */
694 unsigned class_ok:1; /* is a CLASS object with correct attributes. */
695 unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */
696 unsigned vtype:1; /* is a derived type of a vtab. */
698 /* These flags are both in the typespec and attribute. The attribute
699 list is what gets read from/written to a module file. The typespec
700 is created from a decl being processed. */
701 unsigned is_c_interop:1; /* It's c interoperable. */
702 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
704 /* Function/subroutine attributes */
705 unsigned sequence:1, elemental:1, pure:1, recursive:1;
706 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
708 /* This is set if the subroutine doesn't return. Currently, this
709 is only possible for intrinsic subroutines. */
712 /* Set if this procedure is an alternate entry point. These procedures
713 don't have any code associated, and the backend will turn them into
714 thunks to the master function. */
717 /* Set if this is the master function for a procedure with multiple
719 unsigned entry_master:1;
721 /* Set if this is the master function for a function with multiple
722 entry points where characteristics of the entry points differ. */
723 unsigned mixed_entry_master:1;
725 /* Set if a function must always be referenced by an explicit interface. */
726 unsigned always_explicit:1;
728 /* Set if the symbol has been referenced in an expression. No further
729 modification of type or type parameters is permitted. */
730 unsigned referenced:1;
732 /* Set if this is the symbol for the main program. */
733 unsigned is_main_program:1;
735 /* Mutually exclusive multibit attributes. */
736 ENUM_BITFIELD (gfc_access) access:2;
737 ENUM_BITFIELD (sym_intent) intent:2;
738 ENUM_BITFIELD (sym_flavor) flavor:4;
739 ENUM_BITFIELD (ifsrc) if_source:2;
741 ENUM_BITFIELD (procedure_type) proc:3;
743 /* Special attributes for Cray pointers, pointees. */
744 unsigned cray_pointer:1, cray_pointee:1;
746 /* The symbol is a derived type with allocatable components, pointer
747 components or private components, procedure pointer components,
748 possibly nested. zero_comp is true if the derived type has no
750 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
751 private_comp:1, zero_comp:1, coarray_comp:1;
753 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
754 unsigned ext_attr:EXT_ATTR_NUM;
756 /* The namespace where the attribute has been set. */
757 struct gfc_namespace *volatile_ns, *asynchronous_ns;
762 /* We need to store source lines as sequences of multibyte source
763 characters. We define here a type wide enough to hold any multibyte
764 source character, just like libcpp does. A 32-bit type is enough. */
766 #if HOST_BITS_PER_INT >= 32
767 typedef unsigned int gfc_char_t;
768 #elif HOST_BITS_PER_LONG >= 32
769 typedef unsigned long gfc_char_t;
770 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
771 typedef unsigned long long gfc_char_t;
773 # error "Cannot find an integer type with at least 32 bits"
777 /* The following three structures are used to identify a location in
780 gfc_file is used to maintain a tree of the source files and how
781 they include each other
783 gfc_linebuf holds a single line of source code and information
784 which file it resides in
786 locus point to the sourceline and the character in the source
790 typedef struct gfc_file
792 struct gfc_file *next, *up;
793 int inclusion_line, line;
797 typedef struct gfc_linebuf
799 source_location location;
800 struct gfc_file *file;
801 struct gfc_linebuf *next;
809 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
811 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
819 /* In order for the "gfc" format checking to work correctly, you must
820 have declared a typedef locus first. */
821 #if GCC_VERSION >= 4001
822 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
824 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
828 /* Suppress error messages or re-enable them. */
830 void gfc_push_suppress_errors (void);
831 void gfc_pop_suppress_errors (void);
834 /* Character length structures hold the expression that gives the
835 length of a character variable. We avoid putting these into
836 gfc_typespec because doing so prevents us from doing structure
837 copies and forces us to deallocate any typespecs we create, as well
838 as structures that contain typespecs. They also can have multiple
839 character typespecs pointing to them.
841 These structures form a singly linked list within the current
842 namespace and are deallocated with the namespace. It is possible to
843 end up with gfc_charlen structures that have nothing pointing to them. */
845 typedef struct gfc_charlen
847 struct gfc_expr *length;
848 struct gfc_charlen *next;
849 bool length_from_typespec; /* Length from explicit array ctor typespec? */
851 tree passed_length; /* Length argument explicitelly passed. */
857 #define gfc_get_charlen() XCNEW (gfc_charlen)
859 /* Type specification structure. */
867 struct gfc_symbol *derived; /* For derived types only. */
868 gfc_charlen *cl; /* For character types only. */
872 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
879 /* Array specification. */
882 int rank; /* A rank of zero means that a variable is a scalar. */
884 array_type type, cotype;
885 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
887 /* These two fields are used with the Cray Pointer extension. */
888 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
889 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
890 AS_EXPLICIT, but we want to remember that we
896 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
899 /* Components of derived types. */
900 typedef struct gfc_component
905 symbol_attribute attr;
910 struct gfc_expr *initializer;
911 struct gfc_component *next;
913 /* Needed for procedure pointer components. */
914 struct gfc_formal_arglist *formal;
915 struct gfc_namespace *formal_ns;
916 struct gfc_typebound_proc *tb;
920 #define gfc_get_component() XCNEW (gfc_component)
922 /* Formal argument lists are lists of symbols. */
923 typedef struct gfc_formal_arglist
925 /* Symbol representing the argument at this position in the arglist. */
926 struct gfc_symbol *sym;
927 /* Points to the next formal argument. */
928 struct gfc_formal_arglist *next;
932 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
935 /* The gfc_actual_arglist structure is for actual arguments. */
936 typedef struct gfc_actual_arglist
939 /* Alternate return label when the expr member is null. */
940 struct gfc_st_label *label;
942 /* This is set to the type of an eventual omitted optional
943 argument. This is used to determine if a hidden string length
944 argument has to be added to a function call. */
947 struct gfc_expr *expr;
948 struct gfc_actual_arglist *next;
952 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
955 /* Because a symbol can belong to multiple namelists, they must be
956 linked externally to the symbol itself. */
957 typedef struct gfc_namelist
959 struct gfc_symbol *sym;
960 struct gfc_namelist *next;
964 #define gfc_get_namelist() XCNEW (gfc_namelist)
969 OMP_LIST_FIRSTPRIVATE,
970 OMP_LIST_LASTPRIVATE,
971 OMP_LIST_COPYPRIVATE,
975 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
987 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
991 /* Because a symbol can belong to multiple namelists, they must be
992 linked externally to the symbol itself. */
994 enum gfc_omp_sched_kind
1004 enum gfc_omp_default_sharing
1006 OMP_DEFAULT_UNKNOWN,
1008 OMP_DEFAULT_PRIVATE,
1010 OMP_DEFAULT_FIRSTPRIVATE
1013 typedef struct gfc_omp_clauses
1015 struct gfc_expr *if_expr;
1016 struct gfc_expr *num_threads;
1017 gfc_namelist *lists[OMP_LIST_NUM];
1018 enum gfc_omp_sched_kind sched_kind;
1019 struct gfc_expr *chunk_size;
1020 enum gfc_omp_default_sharing default_sharing;
1022 bool nowait, ordered, untied;
1026 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1029 /* The gfc_st_label structure is a BBT attached to a namespace that
1030 records the usage of statement labels within that space. */
1032 typedef struct gfc_st_label
1034 BBT_HEADER(gfc_st_label);
1038 gfc_sl_type defined, referenced;
1040 struct gfc_expr *format;
1049 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1050 typedef struct gfc_interface
1052 struct gfc_symbol *sym;
1054 struct gfc_interface *next;
1058 #define gfc_get_interface() XCNEW (gfc_interface)
1060 /* User operator nodes. These are like stripped down symbols. */
1066 struct gfc_namespace *ns;
1072 /* A list of specific bindings that are associated with a generic spec. */
1073 typedef struct gfc_tbp_generic
1075 /* The parser sets specific_st, upon resolution we look for the corresponding
1076 gfc_typebound_proc and set specific for further use. */
1077 struct gfc_symtree* specific_st;
1078 struct gfc_typebound_proc* specific;
1080 struct gfc_tbp_generic* next;
1084 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1087 /* Data needed for type-bound procedures. */
1088 typedef struct gfc_typebound_proc
1090 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1094 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1095 gfc_tbp_generic* generic;
1100 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1102 /* The overridden type-bound proc (or GENERIC with this name in the
1103 parent-type) or NULL if non. */
1104 struct gfc_typebound_proc* overridden;
1106 /* Once resolved, we use the position of pass_arg in the formal arglist of
1107 the binding-target procedure to identify it. The first argument has
1108 number 1 here, the second 2, and so on. */
1109 unsigned pass_arg_num;
1111 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1112 unsigned non_overridable:1;
1113 unsigned deferred:1;
1114 unsigned is_generic:1;
1115 unsigned function:1, subroutine:1;
1116 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1122 /* Symbol nodes. These are important things. They are what the
1123 standard refers to as "entities". The possibly multiple names that
1124 refer to the same entity are accomplished by a binary tree of
1125 symtree structures that is balanced by the red-black method-- more
1126 than one symtree node can point to any given symbol. */
1128 typedef struct gfc_symbol
1130 const char *name; /* Primary name, before renaming */
1131 const char *module; /* Module this symbol came from */
1135 symbol_attribute attr;
1137 /* The formal member points to the formal argument list if the
1138 symbol is a function or subroutine name. If the symbol is a
1139 generic name, the generic member points to the list of
1142 gfc_interface *generic;
1143 gfc_access component_access;
1145 gfc_formal_arglist *formal;
1146 struct gfc_namespace *formal_ns;
1147 struct gfc_namespace *f2k_derived;
1149 struct gfc_expr *value; /* Parameter/Initializer value */
1151 struct gfc_symbol *result; /* function result symbol */
1152 gfc_component *components; /* Derived type components */
1154 /* Defined only for Cray pointees; points to their pointer. */
1155 struct gfc_symbol *cp_pointer;
1157 int entry_id; /* Used in resolve.c for entries. */
1159 /* CLASS hashed name for declared and dynamic types in the class. */
1162 struct gfc_symbol *common_next; /* Links for COMMON syms */
1164 /* This is in fact a gfc_common_head but it is only used for pointer
1165 comparisons to check if symbols are in the same common block. */
1166 struct gfc_common_head* common_head;
1168 /* Make sure setup code for dummy arguments is generated in the correct
1172 gfc_namelist *namelist, *namelist_tail;
1174 /* Change management fields. Symbols that might be modified by the
1175 current statement have the mark member nonzero and are kept in a
1176 singly linked list through the tlink field. Of these symbols,
1177 symbols with old_symbol equal to NULL are symbols created within
1178 the current statement. Otherwise, old_symbol points to a copy of
1181 struct gfc_symbol *old_symbol, *tlink;
1182 unsigned mark:1, gfc_new:1;
1183 /* Nonzero if all equivalences associated with this symbol have been
1185 unsigned equiv_built:1;
1186 /* Set if this variable is used as an index name in a FORALL. */
1187 unsigned forall_index:1;
1189 struct gfc_namespace *ns; /* namespace containing this symbol */
1193 /* Identity of the intrinsic module the symbol comes from, or
1194 INTMOD_NONE if it's not imported from a intrinsic module. */
1195 intmod_id from_intmod;
1196 /* Identity of the symbol from intrinsic modules, from enums maintained
1197 separately by each intrinsic module. Used together with from_intmod,
1198 it uniquely identifies a symbol from an intrinsic module. */
1201 /* This may be repetitive, since the typespec now has a binding
1203 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1204 /* Store a reference to the common_block, if this symbol is in one. */
1205 struct gfc_common_head *common_block;
1207 /* Link to corresponding association-list if this is an associate name. */
1208 struct gfc_association_list *assoc;
1213 /* This structure is used to keep track of symbols in common blocks. */
1214 typedef struct gfc_common_head
1217 char use_assoc, saved, threadprivate;
1218 char name[GFC_MAX_SYMBOL_LEN + 1];
1219 struct gfc_symbol *head;
1220 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1225 #define gfc_get_common_head() XCNEW (gfc_common_head)
1228 /* A list of all the alternate entry points for a procedure. */
1230 typedef struct gfc_entry_list
1232 /* The symbol for this entry point. */
1234 /* The zero-based id of this entry point. */
1236 /* The LABEL_EXPR marking this entry point. */
1238 /* The next item in the list. */
1239 struct gfc_entry_list *next;
1243 #define gfc_get_entry_list() \
1244 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1246 /* Lists of rename info for the USE statement. */
1248 typedef struct gfc_use_rename
1250 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1251 struct gfc_use_rename *next;
1253 gfc_intrinsic_op op;
1258 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1260 /* A list of all USE statements in a namespace. */
1262 typedef struct gfc_use_list
1264 const char *module_name;
1266 struct gfc_use_rename *rename;
1268 /* Next USE statement. */
1269 struct gfc_use_list *next;
1273 #define gfc_get_use_list() \
1274 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1276 /* Within a namespace, symbols are pointed to by symtree nodes that
1277 are linked together in a balanced binary tree. There can be
1278 several symtrees pointing to the same symbol node via USE
1281 typedef struct gfc_symtree
1283 BBT_HEADER (gfc_symtree);
1288 gfc_symbol *sym; /* Symbol associated with this node */
1290 gfc_common_head *common;
1291 gfc_typebound_proc *tb;
1297 /* A linked list of derived types in the namespace. */
1298 typedef struct gfc_dt_list
1300 struct gfc_symbol *derived;
1301 struct gfc_dt_list *next;
1305 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1307 /* A list of all derived types. */
1308 extern gfc_dt_list *gfc_derived_types;
1310 /* A namespace describes the contents of procedure, module, interface block
1311 or BLOCK construct. */
1312 /* ??? Anything else use these? */
1314 typedef struct gfc_namespace
1316 /* Tree containing all the symbols in this namespace. */
1317 gfc_symtree *sym_root;
1318 /* Tree containing all the user-defined operators in the namespace. */
1319 gfc_symtree *uop_root;
1320 /* Tree containing all the common blocks. */
1321 gfc_symtree *common_root;
1323 /* Tree containing type-bound procedures. */
1324 gfc_symtree *tb_sym_root;
1325 /* Type-bound user operators. */
1326 gfc_symtree *tb_uop_root;
1327 /* For derived-types, store type-bound intrinsic operators here. */
1328 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1329 /* Linked list of finalizer procedures. */
1330 struct gfc_finalizer *finalizers;
1332 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1333 int set_flag[GFC_LETTERS];
1334 /* Keeps track of the implicit types associated with the letters. */
1335 gfc_typespec default_type[GFC_LETTERS];
1336 /* Store the positions of IMPLICIT statements. */
1337 locus implicit_loc[GFC_LETTERS];
1339 /* If this is a namespace of a procedure, this points to the procedure. */
1340 struct gfc_symbol *proc_name;
1341 /* If this is the namespace of a unit which contains executable
1342 code, this points to it. */
1343 struct gfc_code *code;
1345 /* Points to the equivalences set up in this namespace. */
1346 struct gfc_equiv *equiv;
1348 /* Points to the equivalence groups produced by trans_common. */
1349 struct gfc_equiv_list *equiv_lists;
1351 gfc_interface *op[GFC_INTRINSIC_OPS];
1353 /* Points to the parent namespace, i.e. the namespace of a module or
1354 procedure in which the procedure belonging to this namespace is
1355 contained. The parent namespace points to this namespace either
1356 directly via CONTAINED, or indirectly via the chain built by
1358 struct gfc_namespace *parent;
1359 /* CONTAINED points to the first contained namespace. Sibling
1360 namespaces are chained via SIBLING. */
1361 struct gfc_namespace *contained, *sibling;
1363 gfc_common_head blank_common;
1364 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1366 gfc_st_label *st_labels;
1367 /* This list holds information about all the data initializers in
1369 struct gfc_data *data;
1371 gfc_charlen *cl_list, *old_cl_list;
1373 gfc_dt_list *derived_types;
1375 int save_all, seen_save, seen_implicit_none;
1377 /* Normally we don't need to refcount namespaces. However when we read
1378 a module containing a function with multiple entry points, this
1379 will appear as several functions with the same formal namespace. */
1382 /* A list of all alternate entry points to this procedure (or NULL). */
1383 gfc_entry_list *entries;
1385 /* A list of USE statements in this namespace. */
1386 gfc_use_list *use_stmts;
1388 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1389 unsigned is_block_data:1;
1391 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1392 unsigned has_import_set:1;
1394 /* Set to 1 if resolved has been called for this namespace.
1395 Holds -1 during resolution. */
1398 /* Set to 1 if code has been generated for this namespace. */
1399 unsigned translated:1;
1401 /* Set to 1 if symbols in this namespace should be 'construct entities',
1402 i.e. for BLOCK local variables. */
1403 unsigned construct_entities:1;
1407 extern gfc_namespace *gfc_current_ns;
1408 extern gfc_namespace *gfc_global_ns_list;
1410 /* Global symbols are symbols of global scope. Currently we only use
1411 this to detect collisions already when parsing.
1412 TODO: Extend to verify procedure calls. */
1414 enum gfc_symbol_type
1416 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1417 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1420 typedef struct gfc_gsymbol
1422 BBT_HEADER(gfc_gsymbol);
1425 const char *sym_name;
1426 const char *mod_name;
1427 const char *binding_label;
1428 enum gfc_symbol_type type;
1436 extern gfc_gsymbol *gfc_gsym_root;
1438 /* Information on interfaces being built. */
1441 interface_type type;
1445 gfc_intrinsic_op op;
1449 extern gfc_interface_info current_interface;
1452 /* Array reference. */
1454 enum gfc_array_ref_dimen_type
1456 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_UNKNOWN
1459 typedef struct gfc_array_ref
1462 int dimen; /* # of components in the reference */
1464 bool in_allocate; /* For coarray checks. */
1468 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1469 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1470 *stride[GFC_MAX_DIMENSIONS];
1472 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1474 struct gfc_expr *offset;
1478 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1481 /* Component reference nodes. A variable is stored as an expression
1482 node that points to the base symbol. After that, a singly linked
1483 list of component reference nodes gives the variable's complete
1484 resolution. The array_ref component may be present and comes
1485 before the component component. */
1488 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1491 typedef struct gfc_ref
1497 struct gfc_array_ref ar;
1501 gfc_component *component;
1508 struct gfc_expr *start, *end; /* Substring */
1509 gfc_charlen *length;
1516 struct gfc_ref *next;
1520 #define gfc_get_ref() XCNEW (gfc_ref)
1523 /* Structures representing intrinsic symbols and their arguments lists. */
1524 typedef struct gfc_intrinsic_arg
1526 char name[GFC_MAX_SYMBOL_LEN + 1];
1530 ENUM_BITFIELD (sym_intent) intent:2;
1531 gfc_actual_arglist *actual;
1533 struct gfc_intrinsic_arg *next;
1539 /* Specifies the various kinds of check functions used to verify the
1540 argument lists of intrinsic functions. fX with X an integer refer
1541 to check functions of intrinsics with X arguments. f1m is used for
1542 the MAX and MIN intrinsics which can have an arbitrary number of
1543 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1544 these have special semantics. */
1548 gfc_try (*f0)(void);
1549 gfc_try (*f1)(struct gfc_expr *);
1550 gfc_try (*f1m)(gfc_actual_arglist *);
1551 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1552 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1553 gfc_try (*f3ml)(gfc_actual_arglist *);
1554 gfc_try (*f3red)(gfc_actual_arglist *);
1555 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1557 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1558 struct gfc_expr *, struct gfc_expr *);
1562 /* Like gfc_check_f, these specify the type of the simplification
1563 function associated with an intrinsic. The fX are just like in
1564 gfc_check_f. cc is used for type conversion functions. */
1568 struct gfc_expr *(*f0)(void);
1569 struct gfc_expr *(*f1)(struct gfc_expr *);
1570 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1571 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1573 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1574 struct gfc_expr *, struct gfc_expr *);
1575 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1576 struct gfc_expr *, struct gfc_expr *,
1578 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1582 /* Again like gfc_check_f, these specify the type of the resolution
1583 function associated with an intrinsic. The fX are just like in
1584 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1588 void (*f0)(struct gfc_expr *);
1589 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1590 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1591 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1592 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1594 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1595 struct gfc_expr *, struct gfc_expr *);
1596 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1597 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1598 void (*s1)(struct gfc_code *);
1603 typedef struct gfc_intrinsic_sym
1605 const char *name, *lib_name;
1606 gfc_intrinsic_arg *formal;
1608 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1609 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1613 gfc_simplify_f simplify;
1615 gfc_resolve_f resolve;
1616 struct gfc_intrinsic_sym *specific_head, *next;
1623 /* Expression nodes. The expression node types deserve explanations,
1624 since the last couple can be easily misconstrued:
1626 EXPR_OP Operator node pointing to one or two other nodes
1627 EXPR_FUNCTION Function call, symbol points to function's name
1628 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1629 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1630 which expresses structure, array and substring refs.
1631 EXPR_NULL The NULL pointer value (which also has a basic type).
1632 EXPR_SUBSTRING A substring of a constant string
1633 EXPR_STRUCTURE A structure constructor
1634 EXPR_ARRAY An array constructor.
1635 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1636 component or type-bound procedure. */
1641 #define GFC_RND_MODE GMP_RNDN
1642 #define GFC_MPC_RND_MODE MPC_RNDNN
1644 typedef splay_tree gfc_constructor_base;
1646 typedef struct gfc_expr
1650 gfc_typespec ts; /* These two refer to the overall expression */
1653 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1655 /* Nonnull for functions and structure constructors, may also used to hold the
1656 base-object for component calls. */
1657 gfc_symtree *symtree;
1663 /* True if the expression is a call to a function that returns an array,
1664 and if we have decided not to allocate temporary data for that array.
1665 is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1666 denotes a signalling not-a-number. */
1667 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1, is_snan : 1;
1669 /* Sometimes, when an error has been emitted, it is necessary to prevent
1670 it from recurring. */
1671 unsigned int error : 1;
1673 /* Mark an expression where a user operator has been substituted by
1674 a function call in interface.c(gfc_extend_expr). */
1675 unsigned int user_operator : 1;
1677 /* Mark an expression as being a MOLD argument of ALLOCATE. */
1678 unsigned int mold : 1;
1680 /* If an expression comes from a Hollerith constant or compile-time
1681 evaluation of a transfer statement, it may have a prescribed target-
1682 memory representation, and these cannot always be backformed from
1705 gfc_intrinsic_op op;
1707 struct gfc_expr *op1, *op2;
1713 gfc_actual_arglist *actual;
1714 const char *name; /* Points to the ultimate name of the function */
1715 gfc_intrinsic_sym *isym;
1722 gfc_actual_arglist* actual;
1724 /* Base-object, whose component was called. NULL means that it should
1725 be taken from symtree/ref. */
1726 struct gfc_expr* base_object;
1727 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1729 /* For type-bound operators, we want to call PASS procedures but already
1730 have the full arglist; mark this, so that it is not extended by the
1732 unsigned ignore_pass:1;
1734 /* Do assign-calls rather than calls, that is appropriate dependency
1747 gfc_constructor_base constructor;
1755 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1757 /* Structures for information associated with different kinds of
1758 numbers. The first set of integer parameters define all there is
1759 to know about a particular kind. The rest of the elements are
1760 computed from the first elements. */
1764 /* Values really representable by the target. */
1765 mpz_t huge, pedantic_min_int, min_int;
1767 int kind, radix, digits, bit_size, range;
1769 /* True if the C type of the given name maps to this precision.
1770 Note that more than one bit can be set. */
1771 unsigned int c_char : 1;
1772 unsigned int c_short : 1;
1773 unsigned int c_int : 1;
1774 unsigned int c_long : 1;
1775 unsigned int c_long_long : 1;
1779 extern gfc_integer_info gfc_integer_kinds[];
1786 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1787 unsigned int c_bool : 1;
1791 extern gfc_logical_info gfc_logical_kinds[];
1796 mpfr_t epsilon, huge, tiny, subnormal;
1797 int kind, radix, digits, min_exponent, max_exponent;
1798 int range, precision;
1800 /* The precision of the type as reported by GET_MODE_PRECISION. */
1803 /* True if the C type of the given name maps to this precision.
1804 Note that more than one bit can be set. */
1805 unsigned int c_float : 1;
1806 unsigned int c_double : 1;
1807 unsigned int c_long_double : 1;
1811 extern gfc_real_info gfc_real_kinds[];
1820 extern gfc_character_info gfc_character_kinds[];
1823 /* Equivalence structures. Equivalent lvalues are linked along the
1824 *eq pointer, equivalence sets are strung along the *next node. */
1825 typedef struct gfc_equiv
1827 struct gfc_equiv *next, *eq;
1834 #define gfc_get_equiv() XCNEW (gfc_equiv)
1836 /* Holds a single equivalence member after processing. */
1837 typedef struct gfc_equiv_info
1840 HOST_WIDE_INT offset;
1841 HOST_WIDE_INT length;
1842 struct gfc_equiv_info *next;
1845 /* Holds equivalence groups, after they have been processed. */
1846 typedef struct gfc_equiv_list
1848 gfc_equiv_info *equiv;
1849 struct gfc_equiv_list *next;
1852 /* gfc_case stores the selector list of a case statement. The *low
1853 and *high pointers can point to the same expression in the case of
1854 a single value. If *high is NULL, the selection is from *low
1855 upwards, if *low is NULL the selection is *high downwards.
1857 This structure has separate fields to allow single and double linked
1858 lists of CASEs at the same time. The singe linked list along the NEXT
1859 field is a list of cases for a single CASE label. The double linked
1860 list along the LEFT/RIGHT fields is used to detect overlap and to
1861 build a table of the cases for SELECT constructs with a CHARACTER
1864 typedef struct gfc_case
1866 /* Where we saw this case. */
1870 /* Case range values. If (low == high), it's a single value. If one of
1871 the labels is NULL, it's an unbounded case. If both are NULL, this
1872 represents the default case. */
1873 gfc_expr *low, *high;
1875 /* Only used for SELECT TYPE. */
1878 /* Next case label in the list of cases for a single CASE label. */
1879 struct gfc_case *next;
1881 /* Used for detecting overlap, and for code generation. */
1882 struct gfc_case *left, *right;
1884 /* True if this case label can never be matched. */
1889 #define gfc_get_case() XCNEW (gfc_case)
1894 gfc_expr *var, *start, *end, *step;
1898 #define gfc_get_iterator() XCNEW (gfc_iterator)
1901 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1903 typedef struct gfc_alloc
1906 struct gfc_alloc *next;
1910 #define gfc_get_alloc() XCNEW (gfc_alloc)
1915 gfc_expr *unit, *file, *status, *access, *form, *recl,
1916 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1917 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1925 gfc_expr *unit, *status, *iostat, *iomsg;
1933 gfc_expr *unit, *iostat, *iomsg;
1941 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1942 *name, *access, *sequential, *direct, *form, *formatted,
1943 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1944 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1945 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1955 gfc_expr *unit, *iostat, *iomsg, *id;
1956 gfc_st_label *err, *end, *eor;
1963 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1964 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1965 *sign, *extra_comma;
1967 gfc_symbol *namelist;
1968 /* A format_label of `format_asterisk' indicates the "*" format */
1969 gfc_st_label *format_label;
1970 gfc_st_label *err, *end, *eor;
1972 locus eor_where, end_where, err_where;
1977 typedef struct gfc_forall_iterator
1979 gfc_expr *var, *start, *end, *stride;
1980 struct gfc_forall_iterator *next;
1982 gfc_forall_iterator;
1985 /* Linked list to store associations in an ASSOCIATE statement. */
1987 typedef struct gfc_association_list
1989 struct gfc_association_list *next;
1991 /* Whether this is association to a variable that can be changed; otherwise,
1992 it's association to an expression and the name may not be used as
1994 unsigned variable:1;
1996 char name[GFC_MAX_SYMBOL_LEN + 1];
1997 gfc_symtree *st; /* Symtree corresponding to name. */
2000 gfc_association_list;
2001 #define gfc_get_association_list() XCNEW (gfc_association_list)
2004 /* Executable statements that fill gfc_code structures. */
2007 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
2008 EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2009 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2010 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2011 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK,
2012 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
2013 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE,
2014 EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
2015 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2016 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2017 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2018 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2019 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2020 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2021 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2022 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2023 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
2027 typedef struct gfc_code
2031 struct gfc_code *block, *next;
2034 gfc_st_label *here, *label1, *label2, *label3;
2035 gfc_symtree *symtree;
2036 gfc_expr *expr1, *expr2, *expr3;
2037 /* A name isn't sufficient to identify a subroutine, we need the actual
2038 symbol for the interface definition.
2039 const char *sub_name; */
2040 gfc_symbol *resolved_sym;
2041 gfc_intrinsic_sym *resolved_isym;
2045 gfc_actual_arglist *actual;
2046 gfc_case *case_list;
2047 gfc_iterator *iterator;
2059 gfc_association_list *assoc;
2065 gfc_filepos *filepos;
2066 gfc_inquire *inquire;
2069 gfc_forall_iterator *forall_iterator;
2070 struct gfc_code *whichloop;
2072 gfc_entry_list *entry;
2073 gfc_omp_clauses *omp_clauses;
2074 const char *omp_name;
2075 gfc_namelist *omp_namelist;
2078 ext; /* Points to additional structures required by statement */
2080 /* Cycle and break labels in do loops. */
2087 /* Storage for DATA statements. */
2088 typedef struct gfc_data_variable
2092 struct gfc_data_variable *list, *next;
2097 typedef struct gfc_data_value
2101 struct gfc_data_value *next;
2106 typedef struct gfc_data
2108 gfc_data_variable *var;
2109 gfc_data_value *value;
2112 struct gfc_data *next;
2117 /* Structure for holding compile options */
2121 gfc_source_form source_form;
2122 /* Maximum line lengths in fixed- and free-form source, respectively.
2123 When fixed_line_length or free_line_length are 0, the whole line is used,
2124 regardless of length.
2126 If the user requests a fixed_line_length <7 then gfc_init_options()
2127 emits a fatal error. */
2128 int fixed_line_length;
2129 int free_line_length;
2130 /* Maximum number of continuation lines in fixed- and free-form source,
2132 int max_continue_fixed;
2133 int max_continue_free;
2134 int max_identifier_length;
2135 int dump_parse_tree;
2139 int warn_conversion;
2140 int warn_conversion_extra;
2141 int warn_implicit_interface;
2142 int warn_implicit_procedure;
2143 int warn_line_truncation;
2144 int warn_surprising;
2147 int warn_intrinsic_shadow;
2148 int warn_intrinsics_std;
2149 int warn_character_truncation;
2150 int warn_array_temp;
2151 int warn_align_commons;
2152 int warn_unused_dummy_argument;
2155 int flag_all_intrinsics;
2156 int flag_default_double;
2157 int flag_default_integer;
2158 int flag_default_real;
2160 int flag_underscoring;
2161 int flag_second_underscore;
2162 int flag_implicit_none;
2163 int flag_max_stack_var_size;
2164 int flag_max_array_constructor;
2165 int flag_range_check;
2166 int flag_pack_derived;
2167 int flag_repack_arrays;
2168 int flag_preprocessed;
2173 int flag_allow_leading_underscore;
2175 int flag_external_blas;
2176 int blas_matmul_limit;
2177 int flag_cray_pointer;
2181 int flag_module_private;
2183 int flag_init_local_zero;
2184 int flag_init_integer;
2185 int flag_init_integer_value;
2187 int flag_init_logical;
2188 int flag_init_character;
2189 char flag_init_character_value;
2190 int flag_align_commons;
2191 int flag_whole_file;
2192 int flag_protect_parens;
2196 gfc_fcoarray coarray;
2202 int max_subrecord_length;
2206 extern gfc_option_t gfc_option;
2208 /* Constructor nodes for array and structure constructors. */
2209 typedef struct gfc_constructor
2211 gfc_constructor_base base;
2212 mpz_t offset; /* Offset within a constructor, used as
2216 gfc_iterator *iterator;
2221 gfc_component *component; /* Record the component being initialized. */
2228 typedef struct iterator_stack
2230 gfc_symtree *variable;
2232 struct iterator_stack *prev;
2235 extern iterator_stack *iter_stack;
2238 /* Used for (possibly nested) SELECT TYPE statements. */
2239 typedef struct gfc_select_type_stack
2241 gfc_symbol *selector; /* Current selector variable. */
2242 gfc_symtree *tmp; /* Current temporary variable. */
2243 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2245 gfc_select_type_stack;
2246 extern gfc_select_type_stack *select_type_stack;
2247 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2250 /* Node in the linked list used for storing finalizer procedures. */
2252 typedef struct gfc_finalizer
2254 struct gfc_finalizer* next;
2255 locus where; /* Where the FINAL declaration occurred. */
2257 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2258 symtree and later need only that. This way, we can access and call the
2259 finalizers from every context as they should be "always accessible". I
2260 don't make this a union because we need the information whether proc_sym is
2261 still referenced or not for dereferencing it on deleting a gfc_finalizer
2263 gfc_symbol* proc_sym;
2264 gfc_symtree* proc_tree;
2267 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2270 /************************ Function prototypes *************************/
2273 bool gfc_in_match_data (void);
2274 match gfc_match_char_spec (gfc_typespec *);
2277 void gfc_scanner_done_1 (void);
2278 void gfc_scanner_init_1 (void);
2280 void gfc_add_include_path (const char *, bool, bool);
2281 void gfc_add_intrinsic_modules_path (const char *);
2282 void gfc_release_include_path (void);
2283 FILE *gfc_open_included_file (const char *, bool, bool);
2284 FILE *gfc_open_intrinsic_module (const char *);
2286 int gfc_at_end (void);
2287 int gfc_at_eof (void);
2288 int gfc_at_bol (void);
2289 int gfc_at_eol (void);
2290 void gfc_advance_line (void);
2291 int gfc_check_include (void);
2292 int gfc_define_undef_line (void);
2294 int gfc_wide_is_printable (gfc_char_t);
2295 int gfc_wide_is_digit (gfc_char_t);
2296 int gfc_wide_fits_in_byte (gfc_char_t);
2297 gfc_char_t gfc_wide_tolower (gfc_char_t);
2298 gfc_char_t gfc_wide_toupper (gfc_char_t);
2299 size_t gfc_wide_strlen (const gfc_char_t *);
2300 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2301 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2302 char *gfc_widechar_to_char (const gfc_char_t *, int);
2303 gfc_char_t *gfc_char_to_widechar (const char *);
2305 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2307 void gfc_skip_comments (void);
2308 gfc_char_t gfc_next_char_literal (int);
2309 gfc_char_t gfc_next_char (void);
2310 char gfc_next_ascii_char (void);
2311 gfc_char_t gfc_peek_char (void);
2312 char gfc_peek_ascii_char (void);
2313 void gfc_error_recovery (void);
2314 void gfc_gobble_whitespace (void);
2315 gfc_try gfc_new_file (void);
2316 const char * gfc_read_orig_filename (const char *, const char **);
2318 extern gfc_source_form gfc_current_form;
2319 extern const char *gfc_source_file;
2320 extern locus gfc_current_locus;
2322 void gfc_start_source_files (void);
2323 void gfc_end_source_files (void);
2326 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2327 void gfc_free (void *);
2328 int gfc_terminal_width (void);
2329 void gfc_clear_ts (gfc_typespec *);
2330 FILE *gfc_open_file (const char *);
2331 const char *gfc_basic_typename (bt);
2332 const char *gfc_typename (gfc_typespec *);
2333 const char *gfc_op2string (gfc_intrinsic_op);
2334 const char *gfc_code2string (const mstring *, int);
2335 int gfc_string2code (const mstring *, const char *);
2336 const char *gfc_intent_string (sym_intent);
2338 void gfc_init_1 (void);
2339 void gfc_init_2 (void);
2340 void gfc_done_1 (void);
2341 void gfc_done_2 (void);
2343 int get_c_kind (const char *, CInteropKind_t *);
2346 unsigned int gfc_init_options (unsigned int, const char **);
2347 int gfc_handle_option (size_t, const char *, int, int);
2348 bool gfc_post_options (const char **);
2351 void gfc_maybe_initialize_eh (void);
2354 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2355 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2359 typedef struct gfc_error_buf
2362 size_t allocated, index;
2366 void gfc_error_init_1 (void);
2367 void gfc_buffer_error (int);
2369 const char *gfc_print_wide_char (gfc_char_t);
2371 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2372 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2373 void gfc_clear_warning (void);
2374 void gfc_warning_check (void);
2376 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2377 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2378 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2379 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2380 void gfc_clear_error (void);
2381 int gfc_error_check (void);
2382 int gfc_error_flag_test (void);
2384 notification gfc_notification_std (int);
2385 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2387 /* A general purpose syntax error. */
2388 #define gfc_syntax_error(ST) \
2389 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2391 void gfc_push_error (gfc_error_buf *);
2392 void gfc_pop_error (gfc_error_buf *);
2393 void gfc_free_error (gfc_error_buf *);
2395 void gfc_get_errors (int *, int *);
2396 void gfc_errors_to_warnings (int);
2399 void gfc_arith_init_1 (void);
2400 void gfc_arith_done_1 (void);
2401 arith gfc_check_integer_range (mpz_t p, int kind);
2402 bool gfc_check_character_range (gfc_char_t, int);
2405 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2406 int gfc_validate_kind (bt, int, bool);
2407 int gfc_get_int_kind_from_width_isofortranenv (int size);
2408 int gfc_get_real_kind_from_width_isofortranenv (int size);
2409 tree gfc_get_derived_type (gfc_symbol * derived);
2410 extern int gfc_index_integer_kind;
2411 extern int gfc_default_integer_kind;
2412 extern int gfc_max_integer_kind;
2413 extern int gfc_default_real_kind;
2414 extern int gfc_default_double_kind;
2415 extern int gfc_default_character_kind;
2416 extern int gfc_default_logical_kind;
2417 extern int gfc_default_complex_kind;
2418 extern int gfc_c_int_kind;
2419 extern int gfc_intio_kind;
2420 extern int gfc_charlen_int_kind;
2421 extern int gfc_numeric_storage_size;
2422 extern int gfc_character_storage_size;
2425 void gfc_clear_new_implicit (void);
2426 gfc_try gfc_add_new_implicit_range (int, int);
2427 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2428 void gfc_set_implicit_none (void);
2429 void gfc_check_function_type (gfc_namespace *);
2430 bool gfc_is_intrinsic_typename (const char *);
2432 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2433 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2435 void gfc_set_sym_referenced (gfc_symbol *);
2437 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2438 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2439 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2440 gfc_try gfc_add_codimension (symbol_attribute *, const char *, locus *);
2441 gfc_try gfc_add_contiguous (symbol_attribute *, const char *, locus *);
2442 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2443 gfc_try gfc_add_external (symbol_attribute *, locus *);
2444 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2445 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2446 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2447 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2448 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2449 match gfc_mod_pointee_as (gfc_array_spec *);
2450 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2451 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2452 gfc_try gfc_add_save (symbol_attribute *, const char *, locus *);
2453 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2454 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2455 gfc_try gfc_add_target (symbol_attribute *, locus *);
2456 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2457 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2458 gfc_try gfc_add_common (symbol_attribute *, locus *);
2459 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2460 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2461 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2462 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2463 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2464 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2465 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2466 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2467 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2468 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2469 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2470 gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
2471 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2472 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2474 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2475 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2476 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2477 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2478 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2479 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2480 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2481 const char *, locus *);
2482 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2483 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2484 gfc_formal_arglist *, locus *);
2485 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2487 void gfc_clear_attr (symbol_attribute *);
2488 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2489 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2491 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2492 gfc_symbol *gfc_use_derived (gfc_symbol *);
2493 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2494 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2496 gfc_st_label *gfc_get_st_label (int);
2497 void gfc_free_st_label (gfc_st_label *);
2498 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2499 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2501 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2503 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2504 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2505 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2506 void gfc_delete_symtree (gfc_symtree **, const char *);
2507 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2508 gfc_user_op *gfc_get_uop (const char *);
2509 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2510 void gfc_free_symbol (gfc_symbol *);
2511 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2512 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2513 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2514 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2515 gfc_try verify_c_interop (gfc_typespec *);
2516 gfc_try verify_c_interop_param (gfc_symbol *);
2517 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2518 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2519 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2520 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2521 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2522 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2523 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2524 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2526 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2528 void gfc_undo_symbols (void);
2529 void gfc_commit_symbols (void);
2530 void gfc_commit_symbol (gfc_symbol *);
2531 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2532 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2533 void gfc_free_namespace (gfc_namespace *);
2535 void gfc_symbol_init_2 (void);
2536 void gfc_symbol_done_2 (void);
2538 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2539 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2540 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2541 void gfc_save_all (gfc_namespace *);
2543 void gfc_symbol_state (void);
2544 void gfc_free_dt_list (void);
2547 gfc_gsymbol *gfc_get_gsymbol (const char *);
2548 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2550 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
2551 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2552 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
2553 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
2554 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
2556 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2557 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2558 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2560 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2562 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2564 /* intrinsic.c -- true if working in an init-expr, false otherwise. */
2565 extern bool gfc_init_expr_flag;
2567 /* Given a symbol that we have decided is intrinsic, mark it as such
2568 by placing it into a special module that is otherwise impossible to
2571 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2573 void gfc_intrinsic_init_1 (void);
2574 void gfc_intrinsic_done_1 (void);
2576 char gfc_type_letter (bt);
2577 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2578 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2579 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2580 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2581 int gfc_generic_intrinsic (const char *);
2582 int gfc_specific_intrinsic (const char *);
2583 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2584 int gfc_intrinsic_actual_ok (const char *, const bool);
2585 gfc_intrinsic_sym *gfc_find_function (const char *);
2586 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2588 match gfc_intrinsic_func_interface (gfc_expr *, int);
2589 match gfc_intrinsic_sub_interface (gfc_code *, int);
2591 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2592 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2595 /* match.c -- FIXME */
2596 void gfc_free_iterator (gfc_iterator *, int);
2597 void gfc_free_forall_iterator (gfc_forall_iterator *);
2598 void gfc_free_alloc_list (gfc_alloc *);
2599 void gfc_free_namelist (gfc_namelist *);
2600 void gfc_free_equiv (gfc_equiv *);
2601 void gfc_free_data (gfc_data *);
2602 void gfc_free_case_list (gfc_case *);
2604 /* matchexp.c -- FIXME too? */
2605 gfc_expr *gfc_get_parentheses (gfc_expr *);
2608 void gfc_free_omp_clauses (gfc_omp_clauses *);
2609 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2610 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2611 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2612 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2615 void gfc_free_actual_arglist (gfc_actual_arglist *);
2616 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2617 const char *gfc_extract_int (gfc_expr *, int *);
2618 bool is_subref_array (gfc_expr *);
2619 bool gfc_is_simply_contiguous (gfc_expr *, bool);
2621 gfc_expr *gfc_build_conversion (gfc_expr *);
2622 void gfc_free_ref_list (gfc_ref *);
2623 void gfc_type_convert_binary (gfc_expr *, int);
2624 int gfc_is_constant_expr (gfc_expr *);
2625 gfc_try gfc_simplify_expr (gfc_expr *, int);
2626 int gfc_has_vector_index (gfc_expr *);
2628 gfc_expr *gfc_get_expr (void);
2629 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
2630 gfc_expr *gfc_get_null_expr (locus *);
2631 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
2632 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
2633 gfc_expr *gfc_get_constant_expr (bt, int, locus *);
2634 gfc_expr *gfc_get_character_expr (int, locus *, const char *, int len);
2635 gfc_expr *gfc_get_int_expr (int, locus *, int);
2636 gfc_expr *gfc_get_logical_expr (int, locus *, bool);
2637 gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
2639 void gfc_free_expr (gfc_expr *);
2640 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2641 mpz_t *gfc_copy_shape (mpz_t *, int);
2642 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2643 gfc_expr *gfc_copy_expr (gfc_expr *);
2644 gfc_ref* gfc_copy_ref (gfc_ref*);
2646 gfc_try gfc_specification_expr (gfc_expr *);
2648 int gfc_numeric_ts (gfc_typespec *);
2649 int gfc_kind_max (gfc_expr *, gfc_expr *);
2651 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2652 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2653 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2654 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2656 bool gfc_has_default_initializer (gfc_symbol *);
2657 gfc_expr *gfc_default_initializer (gfc_typespec *);
2658 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2660 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
2662 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2663 bool (*)(gfc_expr *, gfc_symbol *, int*),
2665 void gfc_expr_set_symbols_referenced (gfc_expr *);
2666 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2667 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2668 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2670 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2672 bool gfc_is_coindexed (gfc_expr *);
2673 bool gfc_has_ultimate_allocatable (gfc_expr *);
2674 bool gfc_has_ultimate_pointer (gfc_expr *);
2678 extern gfc_code new_st;
2680 void gfc_clear_new_st (void);
2681 gfc_code *gfc_get_code (void);
2682 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2683 void gfc_free_statement (gfc_code *);
2684 void gfc_free_statements (gfc_code *);
2685 void gfc_free_association_list (gfc_association_list *);
2688 gfc_try gfc_resolve_expr (gfc_expr *);
2689 void gfc_resolve (gfc_namespace *);
2690 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2691 int gfc_impure_variable (gfc_symbol *);
2692 int gfc_pure (gfc_symbol *);
2693 int gfc_elemental (gfc_symbol *);
2694 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2695 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2696 gfc_try gfc_resolve_index (gfc_expr *, int);
2697 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2698 int gfc_is_formal_arg (void);
2699 void gfc_resolve_substring_charlen (gfc_expr *);
2700 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2701 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2702 bool gfc_type_is_extensible (gfc_symbol *sym);
2706 gfc_iterator *gfc_copy_iterator (gfc_iterator *);
2708 void gfc_free_array_spec (gfc_array_spec *);
2709 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2711 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2712 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2713 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2715 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2717 void gfc_simplify_iterator_var (gfc_expr *);
2718 gfc_try gfc_expand_constructor (gfc_expr *);
2719 int gfc_constant_ac (gfc_expr *);
2720 int gfc_expanded_ac (gfc_expr *);
2721 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2722 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2723 gfc_try gfc_check_constructor_type (gfc_expr *);
2724 gfc_try gfc_check_iter_variable (gfc_expr *);
2725 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2726 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2727 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2728 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2729 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2730 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2731 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2732 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2733 int gfc_is_compile_time_shape (gfc_array_spec *);
2735 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *);
2738 /* interface.c -- FIXME: some of these should be in symbol.c */
2739 void gfc_free_interface (gfc_interface *);
2740 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2741 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2742 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2744 void gfc_check_interfaces (gfc_namespace *);
2745 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2746 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2747 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2748 gfc_actual_arglist **);
2749 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2750 void gfc_free_formal_arglist (gfc_formal_arglist *);
2751 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2752 gfc_try gfc_add_interface (gfc_symbol *);
2753 gfc_interface *gfc_current_interface_head (void);
2754 void gfc_set_current_interface_head (gfc_interface *);
2755 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2756 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2757 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2758 int gfc_has_vector_subscript (gfc_expr*);
2761 extern gfc_st_label format_asterisk;
2763 void gfc_free_open (gfc_open *);
2764 gfc_try gfc_resolve_open (gfc_open *);
2765 void gfc_free_close (gfc_close *);
2766 gfc_try gfc_resolve_close (gfc_close *);
2767 void gfc_free_filepos (gfc_filepos *);
2768 gfc_try gfc_resolve_filepos (gfc_filepos *);
2769 void gfc_free_inquire (gfc_inquire *);
2770 gfc_try gfc_resolve_inquire (gfc_inquire *);
2771 void gfc_free_dt (gfc_dt *);
2772 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2773 void gfc_free_wait (gfc_wait *);
2774 gfc_try gfc_resolve_wait (gfc_wait *);
2777 void gfc_module_init_2 (void);
2778 void gfc_module_done_2 (void);
2779 void gfc_dump_module (const char *, int);
2780 bool gfc_check_access (gfc_access, gfc_access);
2781 void gfc_free_use_stmts (gfc_use_list *);
2784 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2785 symbol_attribute gfc_expr_attr (gfc_expr *);
2786 match gfc_match_rvalue (gfc_expr **);
2787 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2788 int gfc_check_digit (char, int);
2789 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
2792 void gfc_generate_code (gfc_namespace *);
2793 void gfc_generate_module_code (gfc_namespace *);
2796 typedef int (*compare_fn) (void *, void *);
2797 void gfc_insert_bbt (void *, void *, compare_fn);
2798 void gfc_delete_bbt (void *, void *, compare_fn);
2800 /* dump-parse-tree.c */
2801 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2804 gfc_try gfc_parse_file (void);
2805 void gfc_global_used (gfc_gsymbol *, locus *);
2808 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2809 int gfc_is_data_pointer (gfc_expr *);
2812 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2815 void gfc_add_component_ref (gfc_expr *, const char *);
2816 gfc_expr *gfc_class_null_initializer (gfc_typespec *);
2817 gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
2818 gfc_array_spec **, bool);
2819 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *, bool);
2820 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2821 const char*, bool, locus*);
2822 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2823 const char*, bool, locus*);
2824 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2825 gfc_intrinsic_op, bool,
2827 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2829 #define CLASS_DATA(sym) sym->ts.u.derived->components
2831 #endif /* GCC_GFORTRAN_H */