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_IMPLIED_SHAPE, 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). */
345 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
356 GFC_ISYM_DATE_AND_TIME,
360 GFC_ISYM_DOT_PRODUCT,
369 GFC_ISYM_ERFC_SCALED,
371 GFC_ISYM_EXECUTE_COMMAND_LINE,
375 GFC_ISYM_EXTENDS_TYPE_OF,
392 GFC_ISYM_GET_COMMAND,
393 GFC_ISYM_GET_COMMAND_ARGUMENT,
396 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
417 GFC_ISYM_IMAGE_INDEX,
426 GFC_ISYM_IS_IOSTAT_END,
427 GFC_ISYM_IS_IOSTAT_EOR,
462 GFC_ISYM_MAXEXPONENT,
470 GFC_ISYM_MINEXPONENT,
495 GFC_ISYM_RANDOM_NUMBER,
496 GFC_ISYM_RANDOM_SEED,
504 GFC_ISYM_SAME_TYPE_AS,
510 GFC_ISYM_SET_EXPONENT,
529 GFC_ISYM_STORAGE_SIZE,
534 GFC_ISYM_SYSTEM_CLOCK,
558 typedef enum gfc_isym_id gfc_isym_id;
563 GFC_INIT_REAL_OFF = 0,
568 GFC_INIT_REAL_NEG_INF
574 GFC_INIT_LOGICAL_OFF = 0,
575 GFC_INIT_LOGICAL_FALSE,
576 GFC_INIT_LOGICAL_TRUE
582 GFC_INIT_CHARACTER_OFF = 0,
583 GFC_INIT_CHARACTER_ON
585 init_local_character;
589 GFC_INIT_INTEGER_OFF = 0,
596 GFC_FCOARRAY_NONE = 0,
610 /************************* Structures *****************************/
612 /* Used for keeping things in balanced binary trees. */
613 #define BBT_HEADER(self) int priority; struct self *left, *right
615 #define NAMED_INTCST(a,b,c,d) a,
618 ISOFORTRANENV_INVALID = -1,
619 #include "iso-fortran-env.def"
620 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
622 iso_fortran_env_symbol;
625 #define NAMED_INTCST(a,b,c,d) a,
626 #define NAMED_REALCST(a,b,c) a,
627 #define NAMED_CMPXCST(a,b,c) a,
628 #define NAMED_LOGCST(a,b,c) a,
629 #define NAMED_CHARKNDCST(a,b,c) a,
630 #define NAMED_CHARCST(a,b,c) a,
631 #define DERIVED_TYPE(a,b,c) a,
632 #define PROCEDURE(a,b) a,
635 ISOCBINDING_INVALID = -1,
636 #include "iso-c-binding.def"
638 ISOCBINDING_NUMBER = ISOCBINDING_LAST
640 iso_c_binding_symbol;
645 #undef NAMED_CHARKNDCST
652 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
658 char name[GFC_MAX_SYMBOL_LEN + 1];
659 int value; /* Used for both integer and character values. */
664 /* Array of structs, where the structs represent the C interop kinds.
665 The list will be implemented based on a hash of the kind name since
666 these could be accessed multiple times.
667 Declared in trans-types.c as a global, since it's in that file
668 that the list is initialized. */
669 extern CInteropKind_t c_interop_kinds_table[];
672 /* Structure and list of supported extension attributes. */
675 EXT_ATTR_DLLIMPORT = 0,
680 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
688 const char *middle_end_name;
692 extern const ext_attr_t ext_attr_list[];
694 /* Symbol attribute structure. */
697 /* Variable attributes. */
698 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1,
699 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
700 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
701 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1,
704 /* For CLASS containers, the pointer attribute is sometimes set internally
705 even though it was not directly specified. In this case, keep the
706 "real" (original) value here. */
707 unsigned class_pointer:1;
709 ENUM_BITFIELD (save_state) save:2;
711 unsigned data:1, /* Symbol is named in a DATA statement. */
712 is_protected:1, /* Symbol has been marked as protected. */
713 use_assoc:1, /* Symbol has been use-associated. */
714 use_only:1, /* Symbol has been use-associated, with ONLY. */
715 use_rename:1, /* Symbol has been use-associated and renamed. */
716 imported:1, /* Symbol has been associated by IMPORT. */
717 host_assoc:1; /* Symbol has been host associated. */
719 unsigned in_namelist:1, in_common:1, in_equivalence:1;
720 unsigned function:1, subroutine:1, procedure:1;
721 unsigned generic:1, generic_copy:1;
722 unsigned implicit_type:1; /* Type defined via implicit rules. */
723 unsigned untyped:1; /* No implicit type could be found. */
725 unsigned is_bind_c:1; /* say if is bound to C. */
726 unsigned extension:8; /* extension level of a derived type. */
727 unsigned is_class:1; /* is a CLASS container. */
728 unsigned class_ok:1; /* is a CLASS object with correct attributes. */
729 unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */
730 unsigned vtype:1; /* is a derived type of a vtab. */
732 /* These flags are both in the typespec and attribute. The attribute
733 list is what gets read from/written to a module file. The typespec
734 is created from a decl being processed. */
735 unsigned is_c_interop:1; /* It's c interoperable. */
736 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
738 /* Function/subroutine attributes */
739 unsigned sequence:1, elemental:1, pure:1, recursive:1;
740 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
742 /* This is set if the subroutine doesn't return. Currently, this
743 is only possible for intrinsic subroutines. */
746 /* Set if this procedure is an alternate entry point. These procedures
747 don't have any code associated, and the backend will turn them into
748 thunks to the master function. */
751 /* Set if this is the master function for a procedure with multiple
753 unsigned entry_master:1;
755 /* Set if this is the master function for a function with multiple
756 entry points where characteristics of the entry points differ. */
757 unsigned mixed_entry_master:1;
759 /* Set if a function must always be referenced by an explicit interface. */
760 unsigned always_explicit:1;
762 /* Set if the symbol has been referenced in an expression. No further
763 modification of type or type parameters is permitted. */
764 unsigned referenced:1;
766 /* Set if this is the symbol for the main program. */
767 unsigned is_main_program:1;
769 /* Mutually exclusive multibit attributes. */
770 ENUM_BITFIELD (gfc_access) access:2;
771 ENUM_BITFIELD (sym_intent) intent:2;
772 ENUM_BITFIELD (sym_flavor) flavor:4;
773 ENUM_BITFIELD (ifsrc) if_source:2;
775 ENUM_BITFIELD (procedure_type) proc:3;
777 /* Special attributes for Cray pointers, pointees. */
778 unsigned cray_pointer:1, cray_pointee:1;
780 /* The symbol is a derived type with allocatable components, pointer
781 components or private components, procedure pointer components,
782 possibly nested. zero_comp is true if the derived type has no
784 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
785 private_comp:1, zero_comp:1, coarray_comp:1;
787 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
788 unsigned ext_attr:EXT_ATTR_NUM;
790 /* The namespace where the attribute has been set. */
791 struct gfc_namespace *volatile_ns, *asynchronous_ns;
796 /* We need to store source lines as sequences of multibyte source
797 characters. We define here a type wide enough to hold any multibyte
798 source character, just like libcpp does. A 32-bit type is enough. */
800 #if HOST_BITS_PER_INT >= 32
801 typedef unsigned int gfc_char_t;
802 #elif HOST_BITS_PER_LONG >= 32
803 typedef unsigned long gfc_char_t;
804 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
805 typedef unsigned long long gfc_char_t;
807 # error "Cannot find an integer type with at least 32 bits"
811 /* The following three structures are used to identify a location in
814 gfc_file is used to maintain a tree of the source files and how
815 they include each other
817 gfc_linebuf holds a single line of source code and information
818 which file it resides in
820 locus point to the sourceline and the character in the source
824 typedef struct gfc_file
826 struct gfc_file *next, *up;
827 int inclusion_line, line;
831 typedef struct gfc_linebuf
833 source_location location;
834 struct gfc_file *file;
835 struct gfc_linebuf *next;
843 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
845 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
853 /* In order for the "gfc" format checking to work correctly, you must
854 have declared a typedef locus first. */
855 #if GCC_VERSION >= 4001
856 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
858 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
862 /* Suppress error messages or re-enable them. */
864 void gfc_push_suppress_errors (void);
865 void gfc_pop_suppress_errors (void);
868 /* Character length structures hold the expression that gives the
869 length of a character variable. We avoid putting these into
870 gfc_typespec because doing so prevents us from doing structure
871 copies and forces us to deallocate any typespecs we create, as well
872 as structures that contain typespecs. They also can have multiple
873 character typespecs pointing to them.
875 These structures form a singly linked list within the current
876 namespace and are deallocated with the namespace. It is possible to
877 end up with gfc_charlen structures that have nothing pointing to them. */
879 typedef struct gfc_charlen
881 struct gfc_expr *length;
882 struct gfc_charlen *next;
883 bool length_from_typespec; /* Length from explicit array ctor typespec? */
885 tree passed_length; /* Length argument explicitelly passed. */
891 #define gfc_get_charlen() XCNEW (gfc_charlen)
893 /* Type specification structure. */
901 struct gfc_symbol *derived; /* For derived types only. */
902 gfc_charlen *cl; /* For character types only. */
903 int pad; /* For hollerith types only. */
907 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
914 /* Array specification. */
917 int rank; /* A rank of zero means that a variable is a scalar. */
919 array_type type, cotype;
920 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
922 /* These two fields are used with the Cray Pointer extension. */
923 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
924 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
925 AS_EXPLICIT, but we want to remember that we
931 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
934 /* Components of derived types. */
935 typedef struct gfc_component
940 symbol_attribute attr;
945 struct gfc_expr *initializer;
946 struct gfc_component *next;
948 /* Needed for procedure pointer components. */
949 struct gfc_formal_arglist *formal;
950 struct gfc_namespace *formal_ns;
951 struct gfc_typebound_proc *tb;
955 #define gfc_get_component() XCNEW (gfc_component)
957 /* Formal argument lists are lists of symbols. */
958 typedef struct gfc_formal_arglist
960 /* Symbol representing the argument at this position in the arglist. */
961 struct gfc_symbol *sym;
962 /* Points to the next formal argument. */
963 struct gfc_formal_arglist *next;
967 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
970 /* The gfc_actual_arglist structure is for actual arguments. */
971 typedef struct gfc_actual_arglist
974 /* Alternate return label when the expr member is null. */
975 struct gfc_st_label *label;
977 /* This is set to the type of an eventual omitted optional
978 argument. This is used to determine if a hidden string length
979 argument has to be added to a function call. */
982 struct gfc_expr *expr;
983 struct gfc_actual_arglist *next;
987 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
990 /* Because a symbol can belong to multiple namelists, they must be
991 linked externally to the symbol itself. */
992 typedef struct gfc_namelist
994 struct gfc_symbol *sym;
995 struct gfc_namelist *next;
999 #define gfc_get_namelist() XCNEW (gfc_namelist)
1004 OMP_LIST_FIRSTPRIVATE,
1005 OMP_LIST_LASTPRIVATE,
1006 OMP_LIST_COPYPRIVATE,
1010 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
1022 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
1026 /* Because a symbol can belong to multiple namelists, they must be
1027 linked externally to the symbol itself. */
1029 enum gfc_omp_sched_kind
1039 enum gfc_omp_default_sharing
1041 OMP_DEFAULT_UNKNOWN,
1043 OMP_DEFAULT_PRIVATE,
1045 OMP_DEFAULT_FIRSTPRIVATE
1048 typedef struct gfc_omp_clauses
1050 struct gfc_expr *if_expr;
1051 struct gfc_expr *num_threads;
1052 gfc_namelist *lists[OMP_LIST_NUM];
1053 enum gfc_omp_sched_kind sched_kind;
1054 struct gfc_expr *chunk_size;
1055 enum gfc_omp_default_sharing default_sharing;
1057 bool nowait, ordered, untied;
1061 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1064 /* The gfc_st_label structure is a BBT attached to a namespace that
1065 records the usage of statement labels within that space. */
1067 typedef struct gfc_st_label
1069 BBT_HEADER(gfc_st_label);
1073 gfc_sl_type defined, referenced;
1075 struct gfc_expr *format;
1084 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1085 typedef struct gfc_interface
1087 struct gfc_symbol *sym;
1089 struct gfc_interface *next;
1093 #define gfc_get_interface() XCNEW (gfc_interface)
1095 /* User operator nodes. These are like stripped down symbols. */
1101 struct gfc_namespace *ns;
1107 /* A list of specific bindings that are associated with a generic spec. */
1108 typedef struct gfc_tbp_generic
1110 /* The parser sets specific_st, upon resolution we look for the corresponding
1111 gfc_typebound_proc and set specific for further use. */
1112 struct gfc_symtree* specific_st;
1113 struct gfc_typebound_proc* specific;
1115 struct gfc_tbp_generic* next;
1119 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1122 /* Data needed for type-bound procedures. */
1123 typedef struct gfc_typebound_proc
1125 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1129 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1130 gfc_tbp_generic* generic;
1135 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1137 /* The overridden type-bound proc (or GENERIC with this name in the
1138 parent-type) or NULL if non. */
1139 struct gfc_typebound_proc* overridden;
1141 /* Once resolved, we use the position of pass_arg in the formal arglist of
1142 the binding-target procedure to identify it. The first argument has
1143 number 1 here, the second 2, and so on. */
1144 unsigned pass_arg_num;
1146 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1147 unsigned non_overridable:1;
1148 unsigned deferred:1;
1149 unsigned is_generic:1;
1150 unsigned function:1, subroutine:1;
1151 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1157 /* Symbol nodes. These are important things. They are what the
1158 standard refers to as "entities". The possibly multiple names that
1159 refer to the same entity are accomplished by a binary tree of
1160 symtree structures that is balanced by the red-black method-- more
1161 than one symtree node can point to any given symbol. */
1163 typedef struct gfc_symbol
1165 const char *name; /* Primary name, before renaming */
1166 const char *module; /* Module this symbol came from */
1170 symbol_attribute attr;
1172 /* The formal member points to the formal argument list if the
1173 symbol is a function or subroutine name. If the symbol is a
1174 generic name, the generic member points to the list of
1177 gfc_interface *generic;
1178 gfc_access component_access;
1180 gfc_formal_arglist *formal;
1181 struct gfc_namespace *formal_ns;
1182 struct gfc_namespace *f2k_derived;
1184 struct gfc_expr *value; /* Parameter/Initializer value */
1186 struct gfc_symbol *result; /* function result symbol */
1187 gfc_component *components; /* Derived type components */
1189 /* Defined only for Cray pointees; points to their pointer. */
1190 struct gfc_symbol *cp_pointer;
1192 int entry_id; /* Used in resolve.c for entries. */
1194 /* CLASS hashed name for declared and dynamic types in the class. */
1197 struct gfc_symbol *common_next; /* Links for COMMON syms */
1199 /* This is in fact a gfc_common_head but it is only used for pointer
1200 comparisons to check if symbols are in the same common block. */
1201 struct gfc_common_head* common_head;
1203 /* Make sure setup code for dummy arguments is generated in the correct
1207 gfc_namelist *namelist, *namelist_tail;
1209 /* Change management fields. Symbols that might be modified by the
1210 current statement have the mark member nonzero and are kept in a
1211 singly linked list through the tlink field. Of these symbols,
1212 symbols with old_symbol equal to NULL are symbols created within
1213 the current statement. Otherwise, old_symbol points to a copy of
1216 struct gfc_symbol *old_symbol, *tlink;
1217 unsigned mark:1, gfc_new:1;
1218 /* Nonzero if all equivalences associated with this symbol have been
1220 unsigned equiv_built:1;
1221 /* Set if this variable is used as an index name in a FORALL. */
1222 unsigned forall_index:1;
1224 struct gfc_namespace *ns; /* namespace containing this symbol */
1228 /* Identity of the intrinsic module the symbol comes from, or
1229 INTMOD_NONE if it's not imported from a intrinsic module. */
1230 intmod_id from_intmod;
1231 /* Identity of the symbol from intrinsic modules, from enums maintained
1232 separately by each intrinsic module. Used together with from_intmod,
1233 it uniquely identifies a symbol from an intrinsic module. */
1236 /* This may be repetitive, since the typespec now has a binding
1238 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1239 /* Store a reference to the common_block, if this symbol is in one. */
1240 struct gfc_common_head *common_block;
1242 /* Link to corresponding association-list if this is an associate name. */
1243 struct gfc_association_list *assoc;
1248 /* This structure is used to keep track of symbols in common blocks. */
1249 typedef struct gfc_common_head
1252 char use_assoc, saved, threadprivate;
1253 char name[GFC_MAX_SYMBOL_LEN + 1];
1254 struct gfc_symbol *head;
1255 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1260 #define gfc_get_common_head() XCNEW (gfc_common_head)
1263 /* A list of all the alternate entry points for a procedure. */
1265 typedef struct gfc_entry_list
1267 /* The symbol for this entry point. */
1269 /* The zero-based id of this entry point. */
1271 /* The LABEL_EXPR marking this entry point. */
1273 /* The next item in the list. */
1274 struct gfc_entry_list *next;
1278 #define gfc_get_entry_list() \
1279 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1281 /* Lists of rename info for the USE statement. */
1283 typedef struct gfc_use_rename
1285 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1286 struct gfc_use_rename *next;
1288 gfc_intrinsic_op op;
1293 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1295 /* A list of all USE statements in a namespace. */
1297 typedef struct gfc_use_list
1299 const char *module_name;
1301 struct gfc_use_rename *rename;
1303 /* Next USE statement. */
1304 struct gfc_use_list *next;
1308 #define gfc_get_use_list() \
1309 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1311 /* Within a namespace, symbols are pointed to by symtree nodes that
1312 are linked together in a balanced binary tree. There can be
1313 several symtrees pointing to the same symbol node via USE
1316 typedef struct gfc_symtree
1318 BBT_HEADER (gfc_symtree);
1323 gfc_symbol *sym; /* Symbol associated with this node */
1325 gfc_common_head *common;
1326 gfc_typebound_proc *tb;
1332 /* A linked list of derived types in the namespace. */
1333 typedef struct gfc_dt_list
1335 struct gfc_symbol *derived;
1336 struct gfc_dt_list *next;
1340 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1342 /* A list of all derived types. */
1343 extern gfc_dt_list *gfc_derived_types;
1345 /* A namespace describes the contents of procedure, module, interface block
1346 or BLOCK construct. */
1347 /* ??? Anything else use these? */
1349 typedef struct gfc_namespace
1351 /* Tree containing all the symbols in this namespace. */
1352 gfc_symtree *sym_root;
1353 /* Tree containing all the user-defined operators in the namespace. */
1354 gfc_symtree *uop_root;
1355 /* Tree containing all the common blocks. */
1356 gfc_symtree *common_root;
1358 /* Tree containing type-bound procedures. */
1359 gfc_symtree *tb_sym_root;
1360 /* Type-bound user operators. */
1361 gfc_symtree *tb_uop_root;
1362 /* For derived-types, store type-bound intrinsic operators here. */
1363 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1364 /* Linked list of finalizer procedures. */
1365 struct gfc_finalizer *finalizers;
1367 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1368 int set_flag[GFC_LETTERS];
1369 /* Keeps track of the implicit types associated with the letters. */
1370 gfc_typespec default_type[GFC_LETTERS];
1371 /* Store the positions of IMPLICIT statements. */
1372 locus implicit_loc[GFC_LETTERS];
1374 /* If this is a namespace of a procedure, this points to the procedure. */
1375 struct gfc_symbol *proc_name;
1376 /* If this is the namespace of a unit which contains executable
1377 code, this points to it. */
1378 struct gfc_code *code;
1380 /* Points to the equivalences set up in this namespace. */
1381 struct gfc_equiv *equiv, *old_equiv;
1383 /* Points to the equivalence groups produced by trans_common. */
1384 struct gfc_equiv_list *equiv_lists;
1386 gfc_interface *op[GFC_INTRINSIC_OPS];
1388 /* Points to the parent namespace, i.e. the namespace of a module or
1389 procedure in which the procedure belonging to this namespace is
1390 contained. The parent namespace points to this namespace either
1391 directly via CONTAINED, or indirectly via the chain built by
1393 struct gfc_namespace *parent;
1394 /* CONTAINED points to the first contained namespace. Sibling
1395 namespaces are chained via SIBLING. */
1396 struct gfc_namespace *contained, *sibling;
1398 gfc_common_head blank_common;
1399 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1401 gfc_st_label *st_labels;
1402 /* This list holds information about all the data initializers in
1404 struct gfc_data *data;
1406 gfc_charlen *cl_list, *old_cl_list;
1408 gfc_dt_list *derived_types;
1410 int save_all, seen_save, seen_implicit_none;
1412 /* Normally we don't need to refcount namespaces. However when we read
1413 a module containing a function with multiple entry points, this
1414 will appear as several functions with the same formal namespace. */
1417 /* A list of all alternate entry points to this procedure (or NULL). */
1418 gfc_entry_list *entries;
1420 /* A list of USE statements in this namespace. */
1421 gfc_use_list *use_stmts;
1423 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1424 unsigned is_block_data:1;
1426 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1427 unsigned has_import_set:1;
1429 /* Set to 1 if resolved has been called for this namespace.
1430 Holds -1 during resolution. */
1433 /* Set to 1 if code has been generated for this namespace. */
1434 unsigned translated:1;
1436 /* Set to 1 if symbols in this namespace should be 'construct entities',
1437 i.e. for BLOCK local variables. */
1438 unsigned construct_entities:1;
1442 extern gfc_namespace *gfc_current_ns;
1443 extern gfc_namespace *gfc_global_ns_list;
1445 /* Global symbols are symbols of global scope. Currently we only use
1446 this to detect collisions already when parsing.
1447 TODO: Extend to verify procedure calls. */
1449 enum gfc_symbol_type
1451 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1452 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1455 typedef struct gfc_gsymbol
1457 BBT_HEADER(gfc_gsymbol);
1460 const char *sym_name;
1461 const char *mod_name;
1462 const char *binding_label;
1463 enum gfc_symbol_type type;
1471 extern gfc_gsymbol *gfc_gsym_root;
1473 /* Information on interfaces being built. */
1476 interface_type type;
1480 gfc_intrinsic_op op;
1484 extern gfc_interface_info current_interface;
1487 /* Array reference. */
1489 enum gfc_array_ref_dimen_type
1491 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_UNKNOWN
1494 typedef struct gfc_array_ref
1497 int dimen; /* # of components in the reference */
1499 bool in_allocate; /* For coarray checks. */
1503 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1504 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1505 *stride[GFC_MAX_DIMENSIONS];
1507 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1509 struct gfc_expr *offset;
1513 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1516 /* Component reference nodes. A variable is stored as an expression
1517 node that points to the base symbol. After that, a singly linked
1518 list of component reference nodes gives the variable's complete
1519 resolution. The array_ref component may be present and comes
1520 before the component component. */
1523 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1526 typedef struct gfc_ref
1532 struct gfc_array_ref ar;
1536 gfc_component *component;
1543 struct gfc_expr *start, *end; /* Substring */
1544 gfc_charlen *length;
1551 struct gfc_ref *next;
1555 #define gfc_get_ref() XCNEW (gfc_ref)
1558 /* Structures representing intrinsic symbols and their arguments lists. */
1559 typedef struct gfc_intrinsic_arg
1561 char name[GFC_MAX_SYMBOL_LEN + 1];
1564 unsigned optional:1, value:1;
1565 ENUM_BITFIELD (sym_intent) intent:2;
1566 gfc_actual_arglist *actual;
1568 struct gfc_intrinsic_arg *next;
1574 /* Specifies the various kinds of check functions used to verify the
1575 argument lists of intrinsic functions. fX with X an integer refer
1576 to check functions of intrinsics with X arguments. f1m is used for
1577 the MAX and MIN intrinsics which can have an arbitrary number of
1578 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1579 these have special semantics. */
1583 gfc_try (*f0)(void);
1584 gfc_try (*f1)(struct gfc_expr *);
1585 gfc_try (*f1m)(gfc_actual_arglist *);
1586 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1587 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1588 gfc_try (*f3ml)(gfc_actual_arglist *);
1589 gfc_try (*f3red)(gfc_actual_arglist *);
1590 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1592 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1593 struct gfc_expr *, struct gfc_expr *);
1597 /* Like gfc_check_f, these specify the type of the simplification
1598 function associated with an intrinsic. The fX are just like in
1599 gfc_check_f. cc is used for type conversion functions. */
1603 struct gfc_expr *(*f0)(void);
1604 struct gfc_expr *(*f1)(struct gfc_expr *);
1605 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1606 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1608 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1609 struct gfc_expr *, struct gfc_expr *);
1610 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1611 struct gfc_expr *, struct gfc_expr *,
1613 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1617 /* Again like gfc_check_f, these specify the type of the resolution
1618 function associated with an intrinsic. The fX are just like in
1619 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1623 void (*f0)(struct gfc_expr *);
1624 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1625 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1626 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1627 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1629 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1630 struct gfc_expr *, struct gfc_expr *);
1631 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1632 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1633 void (*s1)(struct gfc_code *);
1638 typedef struct gfc_intrinsic_sym
1640 const char *name, *lib_name;
1641 gfc_intrinsic_arg *formal;
1643 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1644 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1648 gfc_simplify_f simplify;
1650 gfc_resolve_f resolve;
1651 struct gfc_intrinsic_sym *specific_head, *next;
1658 /* Expression nodes. The expression node types deserve explanations,
1659 since the last couple can be easily misconstrued:
1661 EXPR_OP Operator node pointing to one or two other nodes
1662 EXPR_FUNCTION Function call, symbol points to function's name
1663 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1664 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1665 which expresses structure, array and substring refs.
1666 EXPR_NULL The NULL pointer value (which also has a basic type).
1667 EXPR_SUBSTRING A substring of a constant string
1668 EXPR_STRUCTURE A structure constructor
1669 EXPR_ARRAY An array constructor.
1670 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1671 component or type-bound procedure. */
1676 #define GFC_RND_MODE GMP_RNDN
1677 #define GFC_MPC_RND_MODE MPC_RNDNN
1679 typedef splay_tree gfc_constructor_base;
1681 typedef struct gfc_expr
1685 gfc_typespec ts; /* These two refer to the overall expression */
1688 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1690 /* Nonnull for functions and structure constructors, may also used to hold the
1691 base-object for component calls. */
1692 gfc_symtree *symtree;
1698 /* is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1699 denotes a signalling not-a-number. */
1700 unsigned int is_boz : 1, is_snan : 1;
1702 /* Sometimes, when an error has been emitted, it is necessary to prevent
1703 it from recurring. */
1704 unsigned int error : 1;
1706 /* Mark an expression where a user operator has been substituted by
1707 a function call in interface.c(gfc_extend_expr). */
1708 unsigned int user_operator : 1;
1710 /* Mark an expression as being a MOLD argument of ALLOCATE. */
1711 unsigned int mold : 1;
1713 /* If an expression comes from a Hollerith constant or compile-time
1714 evaluation of a transfer statement, it may have a prescribed target-
1715 memory representation, and these cannot always be backformed from
1738 gfc_intrinsic_op op;
1740 struct gfc_expr *op1, *op2;
1746 gfc_actual_arglist *actual;
1747 const char *name; /* Points to the ultimate name of the function */
1748 gfc_intrinsic_sym *isym;
1755 gfc_actual_arglist* actual;
1757 /* Base-object, whose component was called. NULL means that it should
1758 be taken from symtree/ref. */
1759 struct gfc_expr* base_object;
1760 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1762 /* For type-bound operators, we want to call PASS procedures but already
1763 have the full arglist; mark this, so that it is not extended by the
1765 unsigned ignore_pass:1;
1767 /* Do assign-calls rather than calls, that is appropriate dependency
1780 gfc_constructor_base constructor;
1788 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1790 /* Structures for information associated with different kinds of
1791 numbers. The first set of integer parameters define all there is
1792 to know about a particular kind. The rest of the elements are
1793 computed from the first elements. */
1797 /* Values really representable by the target. */
1798 mpz_t huge, pedantic_min_int, min_int;
1800 int kind, radix, digits, bit_size, range;
1802 /* True if the C type of the given name maps to this precision.
1803 Note that more than one bit can be set. */
1804 unsigned int c_char : 1;
1805 unsigned int c_short : 1;
1806 unsigned int c_int : 1;
1807 unsigned int c_long : 1;
1808 unsigned int c_long_long : 1;
1812 extern gfc_integer_info gfc_integer_kinds[];
1819 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1820 unsigned int c_bool : 1;
1824 extern gfc_logical_info gfc_logical_kinds[];
1829 mpfr_t epsilon, huge, tiny, subnormal;
1830 int kind, radix, digits, min_exponent, max_exponent;
1831 int range, precision;
1833 /* The precision of the type as reported by GET_MODE_PRECISION. */
1836 /* True if the C type of the given name maps to this precision.
1837 Note that more than one bit can be set. */
1838 unsigned int c_float : 1;
1839 unsigned int c_double : 1;
1840 unsigned int c_long_double : 1;
1841 unsigned int c_float128 : 1;
1845 extern gfc_real_info gfc_real_kinds[];
1854 extern gfc_character_info gfc_character_kinds[];
1857 /* Equivalence structures. Equivalent lvalues are linked along the
1858 *eq pointer, equivalence sets are strung along the *next node. */
1859 typedef struct gfc_equiv
1861 struct gfc_equiv *next, *eq;
1868 #define gfc_get_equiv() XCNEW (gfc_equiv)
1870 /* Holds a single equivalence member after processing. */
1871 typedef struct gfc_equiv_info
1874 HOST_WIDE_INT offset;
1875 HOST_WIDE_INT length;
1876 struct gfc_equiv_info *next;
1879 /* Holds equivalence groups, after they have been processed. */
1880 typedef struct gfc_equiv_list
1882 gfc_equiv_info *equiv;
1883 struct gfc_equiv_list *next;
1886 /* gfc_case stores the selector list of a case statement. The *low
1887 and *high pointers can point to the same expression in the case of
1888 a single value. If *high is NULL, the selection is from *low
1889 upwards, if *low is NULL the selection is *high downwards.
1891 This structure has separate fields to allow single and double linked
1892 lists of CASEs at the same time. The singe linked list along the NEXT
1893 field is a list of cases for a single CASE label. The double linked
1894 list along the LEFT/RIGHT fields is used to detect overlap and to
1895 build a table of the cases for SELECT constructs with a CHARACTER
1898 typedef struct gfc_case
1900 /* Where we saw this case. */
1904 /* Case range values. If (low == high), it's a single value. If one of
1905 the labels is NULL, it's an unbounded case. If both are NULL, this
1906 represents the default case. */
1907 gfc_expr *low, *high;
1909 /* Only used for SELECT TYPE. */
1912 /* Next case label in the list of cases for a single CASE label. */
1913 struct gfc_case *next;
1915 /* Used for detecting overlap, and for code generation. */
1916 struct gfc_case *left, *right;
1918 /* True if this case label can never be matched. */
1923 #define gfc_get_case() XCNEW (gfc_case)
1928 gfc_expr *var, *start, *end, *step;
1932 #define gfc_get_iterator() XCNEW (gfc_iterator)
1935 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1937 typedef struct gfc_alloc
1940 struct gfc_alloc *next;
1944 #define gfc_get_alloc() XCNEW (gfc_alloc)
1949 gfc_expr *unit, *file, *status, *access, *form, *recl,
1950 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1951 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1959 gfc_expr *unit, *status, *iostat, *iomsg;
1967 gfc_expr *unit, *iostat, *iomsg;
1975 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1976 *name, *access, *sequential, *direct, *form, *formatted,
1977 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1978 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1979 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1989 gfc_expr *unit, *iostat, *iomsg, *id;
1990 gfc_st_label *err, *end, *eor;
1997 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1998 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1999 *sign, *extra_comma;
2001 gfc_symbol *namelist;
2002 /* A format_label of `format_asterisk' indicates the "*" format */
2003 gfc_st_label *format_label;
2004 gfc_st_label *err, *end, *eor;
2006 locus eor_where, end_where, err_where;
2011 typedef struct gfc_forall_iterator
2013 gfc_expr *var, *start, *end, *stride;
2014 struct gfc_forall_iterator *next;
2016 gfc_forall_iterator;
2019 /* Linked list to store associations in an ASSOCIATE statement. */
2021 typedef struct gfc_association_list
2023 struct gfc_association_list *next;
2025 /* Whether this is association to a variable that can be changed; otherwise,
2026 it's association to an expression and the name may not be used as
2028 unsigned variable:1;
2030 /* True if this struct is currently only linked to from a gfc_symbol rather
2031 than as part of a real list in gfc_code->ext.block.assoc. This may
2032 happen for SELECT TYPE temporaries and must be considered
2033 for memory handling. */
2034 unsigned dangling:1;
2036 char name[GFC_MAX_SYMBOL_LEN + 1];
2037 gfc_symtree *st; /* Symtree corresponding to name. */
2042 gfc_association_list;
2043 #define gfc_get_association_list() XCNEW (gfc_association_list)
2046 /* Executable statements that fill gfc_code structures. */
2049 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
2050 EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2051 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2052 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2053 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK,
2054 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
2055 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE,
2056 EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
2057 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2058 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2059 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2060 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2061 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2062 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2063 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2064 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2065 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
2069 typedef struct gfc_code
2073 struct gfc_code *block, *next;
2076 gfc_st_label *here, *label1, *label2, *label3;
2077 gfc_symtree *symtree;
2078 gfc_expr *expr1, *expr2, *expr3;
2079 /* A name isn't sufficient to identify a subroutine, we need the actual
2080 symbol for the interface definition.
2081 const char *sub_name; */
2082 gfc_symbol *resolved_sym;
2083 gfc_intrinsic_sym *resolved_isym;
2087 gfc_actual_arglist *actual;
2088 gfc_case *case_list;
2089 gfc_iterator *iterator;
2101 gfc_association_list *assoc;
2107 gfc_filepos *filepos;
2108 gfc_inquire *inquire;
2111 gfc_forall_iterator *forall_iterator;
2112 struct gfc_code *which_construct;
2114 gfc_entry_list *entry;
2115 gfc_omp_clauses *omp_clauses;
2116 const char *omp_name;
2117 gfc_namelist *omp_namelist;
2120 ext; /* Points to additional structures required by statement */
2122 /* Cycle and break labels in constructs. */
2129 /* Storage for DATA statements. */
2130 typedef struct gfc_data_variable
2134 struct gfc_data_variable *list, *next;
2139 typedef struct gfc_data_value
2143 struct gfc_data_value *next;
2148 typedef struct gfc_data
2150 gfc_data_variable *var;
2151 gfc_data_value *value;
2154 struct gfc_data *next;
2159 /* Structure for holding compile options */
2163 gfc_source_form source_form;
2164 /* Maximum line lengths in fixed- and free-form source, respectively.
2165 When fixed_line_length or free_line_length are 0, the whole line is used,
2166 regardless of length.
2168 If the user requests a fixed_line_length <7 then gfc_init_options()
2169 emits a fatal error. */
2170 int fixed_line_length;
2171 int free_line_length;
2172 /* Maximum number of continuation lines in fixed- and free-form source,
2174 int max_continue_fixed;
2175 int max_continue_free;
2176 int max_identifier_length;
2177 int dump_parse_tree;
2181 int warn_conversion;
2182 int warn_conversion_extra;
2183 int warn_implicit_interface;
2184 int warn_implicit_procedure;
2185 int warn_line_truncation;
2186 int warn_surprising;
2189 int warn_intrinsic_shadow;
2190 int warn_intrinsics_std;
2191 int warn_character_truncation;
2192 int warn_array_temp;
2193 int warn_align_commons;
2194 int warn_unused_dummy_argument;
2197 int flag_all_intrinsics;
2198 int flag_default_double;
2199 int flag_default_integer;
2200 int flag_default_real;
2202 int flag_underscoring;
2203 int flag_second_underscore;
2204 int flag_implicit_none;
2205 int flag_max_stack_var_size;
2206 int flag_max_array_constructor;
2207 int flag_range_check;
2208 int flag_pack_derived;
2209 int flag_repack_arrays;
2210 int flag_preprocessed;
2215 int flag_allow_leading_underscore;
2217 int flag_external_blas;
2218 int blas_matmul_limit;
2219 int flag_cray_pointer;
2223 int flag_module_private;
2225 int flag_init_local_zero;
2226 int flag_init_integer;
2227 int flag_init_integer_value;
2229 int flag_init_logical;
2230 int flag_init_character;
2231 char flag_init_character_value;
2232 int flag_align_commons;
2233 int flag_whole_file;
2234 int flag_protect_parens;
2238 gfc_fcoarray coarray;
2244 int max_subrecord_length;
2248 extern gfc_option_t gfc_option;
2250 /* Constructor nodes for array and structure constructors. */
2251 typedef struct gfc_constructor
2253 gfc_constructor_base base;
2254 mpz_t offset; /* Offset within a constructor, used as
2258 gfc_iterator *iterator;
2263 gfc_component *component; /* Record the component being initialized. */
2270 typedef struct iterator_stack
2272 gfc_symtree *variable;
2274 struct iterator_stack *prev;
2277 extern iterator_stack *iter_stack;
2280 /* Used for (possibly nested) SELECT TYPE statements. */
2281 typedef struct gfc_select_type_stack
2283 gfc_symbol *selector; /* Current selector variable. */
2284 gfc_symtree *tmp; /* Current temporary variable. */
2285 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2287 gfc_select_type_stack;
2288 extern gfc_select_type_stack *select_type_stack;
2289 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2292 /* Node in the linked list used for storing finalizer procedures. */
2294 typedef struct gfc_finalizer
2296 struct gfc_finalizer* next;
2297 locus where; /* Where the FINAL declaration occurred. */
2299 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2300 symtree and later need only that. This way, we can access and call the
2301 finalizers from every context as they should be "always accessible". I
2302 don't make this a union because we need the information whether proc_sym is
2303 still referenced or not for dereferencing it on deleting a gfc_finalizer
2305 gfc_symbol* proc_sym;
2306 gfc_symtree* proc_tree;
2309 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2312 /************************ Function prototypes *************************/
2315 bool gfc_in_match_data (void);
2316 match gfc_match_char_spec (gfc_typespec *);
2319 void gfc_scanner_done_1 (void);
2320 void gfc_scanner_init_1 (void);
2322 void gfc_add_include_path (const char *, bool, bool);
2323 void gfc_add_intrinsic_modules_path (const char *);
2324 void gfc_release_include_path (void);
2325 FILE *gfc_open_included_file (const char *, bool, bool);
2326 FILE *gfc_open_intrinsic_module (const char *);
2328 int gfc_at_end (void);
2329 int gfc_at_eof (void);
2330 int gfc_at_bol (void);
2331 int gfc_at_eol (void);
2332 void gfc_advance_line (void);
2333 int gfc_check_include (void);
2334 int gfc_define_undef_line (void);
2336 int gfc_wide_is_printable (gfc_char_t);
2337 int gfc_wide_is_digit (gfc_char_t);
2338 int gfc_wide_fits_in_byte (gfc_char_t);
2339 gfc_char_t gfc_wide_tolower (gfc_char_t);
2340 gfc_char_t gfc_wide_toupper (gfc_char_t);
2341 size_t gfc_wide_strlen (const gfc_char_t *);
2342 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2343 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2344 char *gfc_widechar_to_char (const gfc_char_t *, int);
2345 gfc_char_t *gfc_char_to_widechar (const char *);
2347 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2349 void gfc_skip_comments (void);
2350 gfc_char_t gfc_next_char_literal (int);
2351 gfc_char_t gfc_next_char (void);
2352 char gfc_next_ascii_char (void);
2353 gfc_char_t gfc_peek_char (void);
2354 char gfc_peek_ascii_char (void);
2355 void gfc_error_recovery (void);
2356 void gfc_gobble_whitespace (void);
2357 gfc_try gfc_new_file (void);
2358 const char * gfc_read_orig_filename (const char *, const char **);
2360 extern gfc_source_form gfc_current_form;
2361 extern const char *gfc_source_file;
2362 extern locus gfc_current_locus;
2364 void gfc_start_source_files (void);
2365 void gfc_end_source_files (void);
2368 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2369 void gfc_free (void *);
2370 int gfc_terminal_width (void);
2371 void gfc_clear_ts (gfc_typespec *);
2372 FILE *gfc_open_file (const char *);
2373 const char *gfc_basic_typename (bt);
2374 const char *gfc_typename (gfc_typespec *);
2375 const char *gfc_op2string (gfc_intrinsic_op);
2376 const char *gfc_code2string (const mstring *, int);
2377 int gfc_string2code (const mstring *, const char *);
2378 const char *gfc_intent_string (sym_intent);
2380 void gfc_init_1 (void);
2381 void gfc_init_2 (void);
2382 void gfc_done_1 (void);
2383 void gfc_done_2 (void);
2385 int get_c_kind (const char *, CInteropKind_t *);
2388 unsigned int gfc_option_lang_mask (void);
2389 void gfc_init_options (unsigned int,
2390 struct cl_decoded_option *);
2391 bool gfc_handle_option (size_t, const char *, int, int,
2392 const struct cl_option_handlers *);
2393 bool gfc_post_options (const char **);
2396 void gfc_maybe_initialize_eh (void);
2399 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2400 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2404 typedef struct gfc_error_buf
2407 size_t allocated, index;
2411 void gfc_error_init_1 (void);
2412 void gfc_buffer_error (int);
2414 const char *gfc_print_wide_char (gfc_char_t);
2416 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2417 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2418 void gfc_clear_warning (void);
2419 void gfc_warning_check (void);
2421 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2422 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2423 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2424 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2425 void gfc_clear_error (void);
2426 int gfc_error_check (void);
2427 int gfc_error_flag_test (void);
2429 notification gfc_notification_std (int);
2430 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2432 /* A general purpose syntax error. */
2433 #define gfc_syntax_error(ST) \
2434 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2436 void gfc_push_error (gfc_error_buf *);
2437 void gfc_pop_error (gfc_error_buf *);
2438 void gfc_free_error (gfc_error_buf *);
2440 void gfc_get_errors (int *, int *);
2441 void gfc_errors_to_warnings (int);
2444 void gfc_arith_init_1 (void);
2445 void gfc_arith_done_1 (void);
2446 arith gfc_check_integer_range (mpz_t p, int kind);
2447 bool gfc_check_character_range (gfc_char_t, int);
2450 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2451 int gfc_validate_kind (bt, int, bool);
2452 int gfc_get_int_kind_from_width_isofortranenv (int size);
2453 int gfc_get_real_kind_from_width_isofortranenv (int size);
2454 tree gfc_get_derived_type (gfc_symbol * derived);
2455 extern int gfc_index_integer_kind;
2456 extern int gfc_default_integer_kind;
2457 extern int gfc_max_integer_kind;
2458 extern int gfc_default_real_kind;
2459 extern int gfc_default_double_kind;
2460 extern int gfc_default_character_kind;
2461 extern int gfc_default_logical_kind;
2462 extern int gfc_default_complex_kind;
2463 extern int gfc_c_int_kind;
2464 extern int gfc_intio_kind;
2465 extern int gfc_charlen_int_kind;
2466 extern int gfc_numeric_storage_size;
2467 extern int gfc_character_storage_size;
2470 void gfc_clear_new_implicit (void);
2471 gfc_try gfc_add_new_implicit_range (int, int);
2472 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2473 void gfc_set_implicit_none (void);
2474 void gfc_check_function_type (gfc_namespace *);
2475 bool gfc_is_intrinsic_typename (const char *);
2477 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2478 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2480 void gfc_set_sym_referenced (gfc_symbol *);
2482 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2483 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2484 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2485 gfc_try gfc_add_codimension (symbol_attribute *, const char *, locus *);
2486 gfc_try gfc_add_contiguous (symbol_attribute *, const char *, locus *);
2487 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2488 gfc_try gfc_add_external (symbol_attribute *, locus *);
2489 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2490 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2491 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2492 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2493 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2494 match gfc_mod_pointee_as (gfc_array_spec *);
2495 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2496 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2497 gfc_try gfc_add_save (symbol_attribute *, save_state, const char *, locus *);
2498 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2499 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2500 gfc_try gfc_add_target (symbol_attribute *, locus *);
2501 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2502 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2503 gfc_try gfc_add_common (symbol_attribute *, locus *);
2504 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2505 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2506 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2507 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2508 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2509 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2510 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2511 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2512 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2513 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2514 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2515 gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
2516 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2517 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2519 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2520 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2521 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2522 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2523 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2524 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2525 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2526 const char *, locus *);
2527 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2528 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2529 gfc_formal_arglist *, locus *);
2530 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2532 void gfc_clear_attr (symbol_attribute *);
2533 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2534 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2536 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2537 gfc_symbol *gfc_use_derived (gfc_symbol *);
2538 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2539 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2541 gfc_st_label *gfc_get_st_label (int);
2542 void gfc_free_st_label (gfc_st_label *);
2543 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2544 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2546 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2548 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2549 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2550 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2551 void gfc_delete_symtree (gfc_symtree **, const char *);
2552 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2553 gfc_user_op *gfc_get_uop (const char *);
2554 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2555 void gfc_free_symbol (gfc_symbol *);
2556 void gfc_release_symbol (gfc_symbol *);
2557 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2558 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *);
2559 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2560 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2561 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2562 gfc_try verify_c_interop (gfc_typespec *);
2563 gfc_try verify_c_interop_param (gfc_symbol *);
2564 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2565 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2566 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2567 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2568 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2569 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2570 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2571 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2573 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2575 void gfc_undo_symbols (void);
2576 void gfc_commit_symbols (void);
2577 void gfc_commit_symbol (gfc_symbol *);
2578 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2579 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2580 void gfc_free_namespace (gfc_namespace *);
2582 void gfc_symbol_init_2 (void);
2583 void gfc_symbol_done_2 (void);
2585 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2586 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2587 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2588 void gfc_save_all (gfc_namespace *);
2590 void gfc_enforce_clean_symbol_state (void);
2591 void gfc_free_dt_list (void);
2594 gfc_gsymbol *gfc_get_gsymbol (const char *);
2595 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2597 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
2598 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2599 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
2600 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
2601 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
2603 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2604 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2605 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2607 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2609 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2610 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*);
2612 bool gfc_is_associate_pointer (gfc_symbol*);
2614 /* intrinsic.c -- true if working in an init-expr, false otherwise. */
2615 extern bool gfc_init_expr_flag;
2617 /* Given a symbol that we have decided is intrinsic, mark it as such
2618 by placing it into a special module that is otherwise impossible to
2621 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2623 void gfc_intrinsic_init_1 (void);
2624 void gfc_intrinsic_done_1 (void);
2626 char gfc_type_letter (bt);
2627 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2628 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2629 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2630 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2631 int gfc_generic_intrinsic (const char *);
2632 int gfc_specific_intrinsic (const char *);
2633 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2634 int gfc_intrinsic_actual_ok (const char *, const bool);
2635 gfc_intrinsic_sym *gfc_find_function (const char *);
2636 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2638 match gfc_intrinsic_func_interface (gfc_expr *, int);
2639 match gfc_intrinsic_sub_interface (gfc_code *, int);
2641 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2642 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2645 /* match.c -- FIXME */
2646 void gfc_free_iterator (gfc_iterator *, int);
2647 void gfc_free_forall_iterator (gfc_forall_iterator *);
2648 void gfc_free_alloc_list (gfc_alloc *);
2649 void gfc_free_namelist (gfc_namelist *);
2650 void gfc_free_equiv (gfc_equiv *);
2651 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *);
2652 void gfc_free_data (gfc_data *);
2653 void gfc_free_case_list (gfc_case *);
2655 /* matchexp.c -- FIXME too? */
2656 gfc_expr *gfc_get_parentheses (gfc_expr *);
2659 void gfc_free_omp_clauses (gfc_omp_clauses *);
2660 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2661 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2662 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2663 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2666 void gfc_free_actual_arglist (gfc_actual_arglist *);
2667 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2668 const char *gfc_extract_int (gfc_expr *, int *);
2669 bool is_subref_array (gfc_expr *);
2670 bool gfc_is_simply_contiguous (gfc_expr *, bool);
2672 gfc_expr *gfc_build_conversion (gfc_expr *);
2673 void gfc_free_ref_list (gfc_ref *);
2674 void gfc_type_convert_binary (gfc_expr *, int);
2675 int gfc_is_constant_expr (gfc_expr *);
2676 gfc_try gfc_simplify_expr (gfc_expr *, int);
2677 int gfc_has_vector_index (gfc_expr *);
2679 gfc_expr *gfc_get_expr (void);
2680 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
2681 gfc_expr *gfc_get_null_expr (locus *);
2682 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
2683 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
2684 gfc_expr *gfc_get_constant_expr (bt, int, locus *);
2685 gfc_expr *gfc_get_character_expr (int, locus *, const char *, int len);
2686 gfc_expr *gfc_get_int_expr (int, locus *, int);
2687 gfc_expr *gfc_get_logical_expr (int, locus *, bool);
2688 gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
2690 void gfc_free_expr (gfc_expr *);
2691 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2692 mpz_t *gfc_copy_shape (mpz_t *, int);
2693 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2694 gfc_expr *gfc_copy_expr (gfc_expr *);
2695 gfc_ref* gfc_copy_ref (gfc_ref*);
2697 gfc_try gfc_specification_expr (gfc_expr *);
2699 int gfc_numeric_ts (gfc_typespec *);
2700 int gfc_kind_max (gfc_expr *, gfc_expr *);
2702 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2703 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2704 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2705 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2707 bool gfc_has_default_initializer (gfc_symbol *);
2708 gfc_expr *gfc_default_initializer (gfc_typespec *);
2709 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2711 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
2713 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2714 bool (*)(gfc_expr *, gfc_symbol *, int*),
2716 void gfc_expr_set_symbols_referenced (gfc_expr *);
2717 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2718 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2719 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2721 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2723 bool gfc_is_coindexed (gfc_expr *);
2724 bool gfc_get_corank (gfc_expr *);
2725 bool gfc_has_ultimate_allocatable (gfc_expr *);
2726 bool gfc_has_ultimate_pointer (gfc_expr *);
2728 gfc_expr* gfc_build_intrinsic_call (const char*, locus, unsigned, ...);
2732 extern gfc_code new_st;
2734 void gfc_clear_new_st (void);
2735 gfc_code *gfc_get_code (void);
2736 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2737 void gfc_free_statement (gfc_code *);
2738 void gfc_free_statements (gfc_code *);
2739 void gfc_free_association_list (gfc_association_list *);
2742 gfc_try gfc_resolve_expr (gfc_expr *);
2743 void gfc_resolve (gfc_namespace *);
2744 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2745 int gfc_impure_variable (gfc_symbol *);
2746 int gfc_pure (gfc_symbol *);
2747 int gfc_elemental (gfc_symbol *);
2748 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2749 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2750 gfc_try gfc_resolve_index (gfc_expr *, int);
2751 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2752 int gfc_is_formal_arg (void);
2753 void gfc_resolve_substring_charlen (gfc_expr *);
2754 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2755 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2756 bool gfc_type_is_extensible (gfc_symbol *sym);
2760 gfc_iterator *gfc_copy_iterator (gfc_iterator *);
2762 void gfc_free_array_spec (gfc_array_spec *);
2763 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2765 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2766 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2767 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2769 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2771 void gfc_simplify_iterator_var (gfc_expr *);
2772 gfc_try gfc_expand_constructor (gfc_expr *, bool);
2773 int gfc_constant_ac (gfc_expr *);
2774 int gfc_expanded_ac (gfc_expr *);
2775 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2776 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2777 gfc_try gfc_check_constructor_type (gfc_expr *);
2778 gfc_try gfc_check_iter_variable (gfc_expr *);
2779 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2780 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2781 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2782 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2783 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2784 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2785 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2786 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2787 int gfc_is_compile_time_shape (gfc_array_spec *);
2789 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *);
2792 /* interface.c -- FIXME: some of these should be in symbol.c */
2793 void gfc_free_interface (gfc_interface *);
2794 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2795 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2796 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2798 void gfc_check_interfaces (gfc_namespace *);
2799 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2800 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2801 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2802 gfc_actual_arglist **);
2803 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2804 void gfc_free_formal_arglist (gfc_formal_arglist *);
2805 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2806 gfc_try gfc_add_interface (gfc_symbol *);
2807 gfc_interface *gfc_current_interface_head (void);
2808 void gfc_set_current_interface_head (gfc_interface *);
2809 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2810 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2811 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2812 int gfc_has_vector_subscript (gfc_expr*);
2815 extern gfc_st_label format_asterisk;
2817 void gfc_free_open (gfc_open *);
2818 gfc_try gfc_resolve_open (gfc_open *);
2819 void gfc_free_close (gfc_close *);
2820 gfc_try gfc_resolve_close (gfc_close *);
2821 void gfc_free_filepos (gfc_filepos *);
2822 gfc_try gfc_resolve_filepos (gfc_filepos *);
2823 void gfc_free_inquire (gfc_inquire *);
2824 gfc_try gfc_resolve_inquire (gfc_inquire *);
2825 void gfc_free_dt (gfc_dt *);
2826 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2827 void gfc_free_wait (gfc_wait *);
2828 gfc_try gfc_resolve_wait (gfc_wait *);
2831 void gfc_module_init_2 (void);
2832 void gfc_module_done_2 (void);
2833 void gfc_dump_module (const char *, int);
2834 bool gfc_check_access (gfc_access, gfc_access);
2835 void gfc_free_use_stmts (gfc_use_list *);
2838 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2839 symbol_attribute gfc_expr_attr (gfc_expr *);
2840 match gfc_match_rvalue (gfc_expr **);
2841 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2842 int gfc_check_digit (char, int);
2843 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
2846 void gfc_generate_code (gfc_namespace *);
2847 void gfc_generate_module_code (gfc_namespace *);
2850 typedef int (*compare_fn) (void *, void *);
2851 void gfc_insert_bbt (void *, void *, compare_fn);
2852 void gfc_delete_bbt (void *, void *, compare_fn);
2854 /* dump-parse-tree.c */
2855 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2858 gfc_try gfc_parse_file (void);
2859 void gfc_global_used (gfc_gsymbol *, locus *);
2860 gfc_namespace* gfc_build_block_ns (gfc_namespace *);
2863 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2866 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2869 void gfc_add_component_ref (gfc_expr *, const char *);
2870 gfc_expr *gfc_class_null_initializer (gfc_typespec *);
2871 gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
2872 gfc_array_spec **, bool);
2873 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
2874 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2875 const char*, bool, locus*);
2876 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2877 const char*, bool, locus*);
2878 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2879 gfc_intrinsic_op, bool,
2881 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2883 #define CLASS_DATA(sym) sym->ts.u.derived->components
2885 /* frontend-passes.c */
2887 void gfc_run_passes (gfc_namespace *);
2889 #endif /* GCC_GFORTRAN_H */