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). */
341 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
352 GFC_ISYM_DATE_AND_TIME,
356 GFC_ISYM_DOT_PRODUCT,
363 GFC_ISYM_ERFC_SCALED,
368 GFC_ISYM_EXTENDS_TYPE_OF,
385 GFC_ISYM_GET_COMMAND,
386 GFC_ISYM_GET_COMMAND_ARGUMENT,
389 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
408 GFC_ISYM_IMAGE_INDEX,
416 GFC_ISYM_IS_IOSTAT_END,
417 GFC_ISYM_IS_IOSTAT_EOR,
450 GFC_ISYM_MAXEXPONENT,
457 GFC_ISYM_MINEXPONENT,
478 GFC_ISYM_RANDOM_NUMBER,
479 GFC_ISYM_RANDOM_SEED,
487 GFC_ISYM_SAME_TYPE_AS,
493 GFC_ISYM_SET_EXPONENT,
509 GFC_ISYM_STORAGE_SIZE,
514 GFC_ISYM_SYSTEM_CLOCK,
538 typedef enum gfc_isym_id gfc_isym_id;
543 GFC_INIT_REAL_OFF = 0,
548 GFC_INIT_REAL_NEG_INF
554 GFC_INIT_LOGICAL_OFF = 0,
555 GFC_INIT_LOGICAL_FALSE,
556 GFC_INIT_LOGICAL_TRUE
562 GFC_INIT_CHARACTER_OFF = 0,
563 GFC_INIT_CHARACTER_ON
565 init_local_character;
569 GFC_INIT_INTEGER_OFF = 0,
576 GFC_FCOARRAY_NONE = 0,
590 /************************* Structures *****************************/
592 /* Used for keeping things in balanced binary trees. */
593 #define BBT_HEADER(self) int priority; struct self *left, *right
595 #define NAMED_INTCST(a,b,c,d) a,
598 ISOFORTRANENV_INVALID = -1,
599 #include "iso-fortran-env.def"
600 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
602 iso_fortran_env_symbol;
605 #define NAMED_INTCST(a,b,c,d) a,
606 #define NAMED_REALCST(a,b,c) a,
607 #define NAMED_CMPXCST(a,b,c) a,
608 #define NAMED_LOGCST(a,b,c) a,
609 #define NAMED_CHARKNDCST(a,b,c) a,
610 #define NAMED_CHARCST(a,b,c) a,
611 #define DERIVED_TYPE(a,b,c) a,
612 #define PROCEDURE(a,b) a,
615 ISOCBINDING_INVALID = -1,
616 #include "iso-c-binding.def"
618 ISOCBINDING_NUMBER = ISOCBINDING_LAST
620 iso_c_binding_symbol;
625 #undef NAMED_CHARKNDCST
632 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
638 char name[GFC_MAX_SYMBOL_LEN + 1];
639 int value; /* Used for both integer and character values. */
644 /* Array of structs, where the structs represent the C interop kinds.
645 The list will be implemented based on a hash of the kind name since
646 these could be accessed multiple times.
647 Declared in trans-types.c as a global, since it's in that file
648 that the list is initialized. */
649 extern CInteropKind_t c_interop_kinds_table[];
652 /* Structure and list of supported extension attributes. */
655 EXT_ATTR_DLLIMPORT = 0,
660 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
668 const char *middle_end_name;
672 extern const ext_attr_t ext_attr_list[];
674 /* Symbol attribute structure. */
677 /* Variable attributes. */
678 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1,
679 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
680 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
681 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1,
684 /* For CLASS containers, the pointer attribute is sometimes set internally
685 even though it was not directly specified. In this case, keep the
686 "real" (original) value here. */
687 unsigned class_pointer:1;
689 ENUM_BITFIELD (save_state) save:2;
691 unsigned data:1, /* Symbol is named in a DATA statement. */
692 is_protected:1, /* Symbol has been marked as protected. */
693 use_assoc:1, /* Symbol has been use-associated. */
694 use_only:1, /* Symbol has been use-associated, with ONLY. */
695 use_rename:1, /* Symbol has been use-associated and renamed. */
696 imported:1, /* Symbol has been associated by IMPORT. */
697 host_assoc:1; /* Symbol has been host associated. */
699 unsigned in_namelist:1, in_common:1, in_equivalence:1;
700 unsigned function:1, subroutine:1, procedure:1;
701 unsigned generic:1, generic_copy:1;
702 unsigned implicit_type:1; /* Type defined via implicit rules. */
703 unsigned untyped:1; /* No implicit type could be found. */
705 unsigned is_bind_c:1; /* say if is bound to C. */
706 unsigned extension:8; /* extension level of a derived type. */
707 unsigned is_class:1; /* is a CLASS container. */
708 unsigned class_ok:1; /* is a CLASS object with correct attributes. */
709 unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */
710 unsigned vtype:1; /* is a derived type of a vtab. */
712 /* These flags are both in the typespec and attribute. The attribute
713 list is what gets read from/written to a module file. The typespec
714 is created from a decl being processed. */
715 unsigned is_c_interop:1; /* It's c interoperable. */
716 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
718 /* Function/subroutine attributes */
719 unsigned sequence:1, elemental:1, pure:1, recursive:1;
720 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
722 /* This is set if the subroutine doesn't return. Currently, this
723 is only possible for intrinsic subroutines. */
726 /* Set if this procedure is an alternate entry point. These procedures
727 don't have any code associated, and the backend will turn them into
728 thunks to the master function. */
731 /* Set if this is the master function for a procedure with multiple
733 unsigned entry_master:1;
735 /* Set if this is the master function for a function with multiple
736 entry points where characteristics of the entry points differ. */
737 unsigned mixed_entry_master:1;
739 /* Set if a function must always be referenced by an explicit interface. */
740 unsigned always_explicit:1;
742 /* Set if the symbol has been referenced in an expression. No further
743 modification of type or type parameters is permitted. */
744 unsigned referenced:1;
746 /* Set if this is the symbol for the main program. */
747 unsigned is_main_program:1;
749 /* Mutually exclusive multibit attributes. */
750 ENUM_BITFIELD (gfc_access) access:2;
751 ENUM_BITFIELD (sym_intent) intent:2;
752 ENUM_BITFIELD (sym_flavor) flavor:4;
753 ENUM_BITFIELD (ifsrc) if_source:2;
755 ENUM_BITFIELD (procedure_type) proc:3;
757 /* Special attributes for Cray pointers, pointees. */
758 unsigned cray_pointer:1, cray_pointee:1;
760 /* The symbol is a derived type with allocatable components, pointer
761 components or private components, procedure pointer components,
762 possibly nested. zero_comp is true if the derived type has no
764 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
765 private_comp:1, zero_comp:1, coarray_comp:1;
767 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
768 unsigned ext_attr:EXT_ATTR_NUM;
770 /* The namespace where the attribute has been set. */
771 struct gfc_namespace *volatile_ns, *asynchronous_ns;
776 /* We need to store source lines as sequences of multibyte source
777 characters. We define here a type wide enough to hold any multibyte
778 source character, just like libcpp does. A 32-bit type is enough. */
780 #if HOST_BITS_PER_INT >= 32
781 typedef unsigned int gfc_char_t;
782 #elif HOST_BITS_PER_LONG >= 32
783 typedef unsigned long gfc_char_t;
784 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
785 typedef unsigned long long gfc_char_t;
787 # error "Cannot find an integer type with at least 32 bits"
791 /* The following three structures are used to identify a location in
794 gfc_file is used to maintain a tree of the source files and how
795 they include each other
797 gfc_linebuf holds a single line of source code and information
798 which file it resides in
800 locus point to the sourceline and the character in the source
804 typedef struct gfc_file
806 struct gfc_file *next, *up;
807 int inclusion_line, line;
811 typedef struct gfc_linebuf
813 source_location location;
814 struct gfc_file *file;
815 struct gfc_linebuf *next;
823 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
825 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
833 /* In order for the "gfc" format checking to work correctly, you must
834 have declared a typedef locus first. */
835 #if GCC_VERSION >= 4001
836 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
838 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
842 /* Suppress error messages or re-enable them. */
844 void gfc_push_suppress_errors (void);
845 void gfc_pop_suppress_errors (void);
848 /* Character length structures hold the expression that gives the
849 length of a character variable. We avoid putting these into
850 gfc_typespec because doing so prevents us from doing structure
851 copies and forces us to deallocate any typespecs we create, as well
852 as structures that contain typespecs. They also can have multiple
853 character typespecs pointing to them.
855 These structures form a singly linked list within the current
856 namespace and are deallocated with the namespace. It is possible to
857 end up with gfc_charlen structures that have nothing pointing to them. */
859 typedef struct gfc_charlen
861 struct gfc_expr *length;
862 struct gfc_charlen *next;
863 bool length_from_typespec; /* Length from explicit array ctor typespec? */
865 tree passed_length; /* Length argument explicitelly passed. */
871 #define gfc_get_charlen() XCNEW (gfc_charlen)
873 /* Type specification structure. */
881 struct gfc_symbol *derived; /* For derived types only. */
882 gfc_charlen *cl; /* For character types only. */
883 int pad; /* For hollerith types only. */
887 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
894 /* Array specification. */
897 int rank; /* A rank of zero means that a variable is a scalar. */
899 array_type type, cotype;
900 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
902 /* These two fields are used with the Cray Pointer extension. */
903 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
904 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
905 AS_EXPLICIT, but we want to remember that we
911 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
914 /* Components of derived types. */
915 typedef struct gfc_component
920 symbol_attribute attr;
925 struct gfc_expr *initializer;
926 struct gfc_component *next;
928 /* Needed for procedure pointer components. */
929 struct gfc_formal_arglist *formal;
930 struct gfc_namespace *formal_ns;
931 struct gfc_typebound_proc *tb;
935 #define gfc_get_component() XCNEW (gfc_component)
937 /* Formal argument lists are lists of symbols. */
938 typedef struct gfc_formal_arglist
940 /* Symbol representing the argument at this position in the arglist. */
941 struct gfc_symbol *sym;
942 /* Points to the next formal argument. */
943 struct gfc_formal_arglist *next;
947 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
950 /* The gfc_actual_arglist structure is for actual arguments. */
951 typedef struct gfc_actual_arglist
954 /* Alternate return label when the expr member is null. */
955 struct gfc_st_label *label;
957 /* This is set to the type of an eventual omitted optional
958 argument. This is used to determine if a hidden string length
959 argument has to be added to a function call. */
962 struct gfc_expr *expr;
963 struct gfc_actual_arglist *next;
967 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
970 /* Because a symbol can belong to multiple namelists, they must be
971 linked externally to the symbol itself. */
972 typedef struct gfc_namelist
974 struct gfc_symbol *sym;
975 struct gfc_namelist *next;
979 #define gfc_get_namelist() XCNEW (gfc_namelist)
984 OMP_LIST_FIRSTPRIVATE,
985 OMP_LIST_LASTPRIVATE,
986 OMP_LIST_COPYPRIVATE,
990 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
1002 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
1006 /* Because a symbol can belong to multiple namelists, they must be
1007 linked externally to the symbol itself. */
1009 enum gfc_omp_sched_kind
1019 enum gfc_omp_default_sharing
1021 OMP_DEFAULT_UNKNOWN,
1023 OMP_DEFAULT_PRIVATE,
1025 OMP_DEFAULT_FIRSTPRIVATE
1028 typedef struct gfc_omp_clauses
1030 struct gfc_expr *if_expr;
1031 struct gfc_expr *num_threads;
1032 gfc_namelist *lists[OMP_LIST_NUM];
1033 enum gfc_omp_sched_kind sched_kind;
1034 struct gfc_expr *chunk_size;
1035 enum gfc_omp_default_sharing default_sharing;
1037 bool nowait, ordered, untied;
1041 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1044 /* The gfc_st_label structure is a BBT attached to a namespace that
1045 records the usage of statement labels within that space. */
1047 typedef struct gfc_st_label
1049 BBT_HEADER(gfc_st_label);
1053 gfc_sl_type defined, referenced;
1055 struct gfc_expr *format;
1064 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1065 typedef struct gfc_interface
1067 struct gfc_symbol *sym;
1069 struct gfc_interface *next;
1073 #define gfc_get_interface() XCNEW (gfc_interface)
1075 /* User operator nodes. These are like stripped down symbols. */
1081 struct gfc_namespace *ns;
1087 /* A list of specific bindings that are associated with a generic spec. */
1088 typedef struct gfc_tbp_generic
1090 /* The parser sets specific_st, upon resolution we look for the corresponding
1091 gfc_typebound_proc and set specific for further use. */
1092 struct gfc_symtree* specific_st;
1093 struct gfc_typebound_proc* specific;
1095 struct gfc_tbp_generic* next;
1099 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1102 /* Data needed for type-bound procedures. */
1103 typedef struct gfc_typebound_proc
1105 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1109 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1110 gfc_tbp_generic* generic;
1115 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1117 /* The overridden type-bound proc (or GENERIC with this name in the
1118 parent-type) or NULL if non. */
1119 struct gfc_typebound_proc* overridden;
1121 /* Once resolved, we use the position of pass_arg in the formal arglist of
1122 the binding-target procedure to identify it. The first argument has
1123 number 1 here, the second 2, and so on. */
1124 unsigned pass_arg_num;
1126 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1127 unsigned non_overridable:1;
1128 unsigned deferred:1;
1129 unsigned is_generic:1;
1130 unsigned function:1, subroutine:1;
1131 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1137 /* Symbol nodes. These are important things. They are what the
1138 standard refers to as "entities". The possibly multiple names that
1139 refer to the same entity are accomplished by a binary tree of
1140 symtree structures that is balanced by the red-black method-- more
1141 than one symtree node can point to any given symbol. */
1143 typedef struct gfc_symbol
1145 const char *name; /* Primary name, before renaming */
1146 const char *module; /* Module this symbol came from */
1150 symbol_attribute attr;
1152 /* The formal member points to the formal argument list if the
1153 symbol is a function or subroutine name. If the symbol is a
1154 generic name, the generic member points to the list of
1157 gfc_interface *generic;
1158 gfc_access component_access;
1160 gfc_formal_arglist *formal;
1161 struct gfc_namespace *formal_ns;
1162 struct gfc_namespace *f2k_derived;
1164 struct gfc_expr *value; /* Parameter/Initializer value */
1166 struct gfc_symbol *result; /* function result symbol */
1167 gfc_component *components; /* Derived type components */
1169 /* Defined only for Cray pointees; points to their pointer. */
1170 struct gfc_symbol *cp_pointer;
1172 int entry_id; /* Used in resolve.c for entries. */
1174 /* CLASS hashed name for declared and dynamic types in the class. */
1177 struct gfc_symbol *common_next; /* Links for COMMON syms */
1179 /* This is in fact a gfc_common_head but it is only used for pointer
1180 comparisons to check if symbols are in the same common block. */
1181 struct gfc_common_head* common_head;
1183 /* Make sure setup code for dummy arguments is generated in the correct
1187 gfc_namelist *namelist, *namelist_tail;
1189 /* Change management fields. Symbols that might be modified by the
1190 current statement have the mark member nonzero and are kept in a
1191 singly linked list through the tlink field. Of these symbols,
1192 symbols with old_symbol equal to NULL are symbols created within
1193 the current statement. Otherwise, old_symbol points to a copy of
1196 struct gfc_symbol *old_symbol, *tlink;
1197 unsigned mark:1, gfc_new:1;
1198 /* Nonzero if all equivalences associated with this symbol have been
1200 unsigned equiv_built:1;
1201 /* Set if this variable is used as an index name in a FORALL. */
1202 unsigned forall_index:1;
1204 struct gfc_namespace *ns; /* namespace containing this symbol */
1208 /* Identity of the intrinsic module the symbol comes from, or
1209 INTMOD_NONE if it's not imported from a intrinsic module. */
1210 intmod_id from_intmod;
1211 /* Identity of the symbol from intrinsic modules, from enums maintained
1212 separately by each intrinsic module. Used together with from_intmod,
1213 it uniquely identifies a symbol from an intrinsic module. */
1216 /* This may be repetitive, since the typespec now has a binding
1218 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1219 /* Store a reference to the common_block, if this symbol is in one. */
1220 struct gfc_common_head *common_block;
1222 /* Link to corresponding association-list if this is an associate name. */
1223 struct gfc_association_list *assoc;
1228 /* This structure is used to keep track of symbols in common blocks. */
1229 typedef struct gfc_common_head
1232 char use_assoc, saved, threadprivate;
1233 char name[GFC_MAX_SYMBOL_LEN + 1];
1234 struct gfc_symbol *head;
1235 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1240 #define gfc_get_common_head() XCNEW (gfc_common_head)
1243 /* A list of all the alternate entry points for a procedure. */
1245 typedef struct gfc_entry_list
1247 /* The symbol for this entry point. */
1249 /* The zero-based id of this entry point. */
1251 /* The LABEL_EXPR marking this entry point. */
1253 /* The next item in the list. */
1254 struct gfc_entry_list *next;
1258 #define gfc_get_entry_list() \
1259 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1261 /* Lists of rename info for the USE statement. */
1263 typedef struct gfc_use_rename
1265 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1266 struct gfc_use_rename *next;
1268 gfc_intrinsic_op op;
1273 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1275 /* A list of all USE statements in a namespace. */
1277 typedef struct gfc_use_list
1279 const char *module_name;
1281 struct gfc_use_rename *rename;
1283 /* Next USE statement. */
1284 struct gfc_use_list *next;
1288 #define gfc_get_use_list() \
1289 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1291 /* Within a namespace, symbols are pointed to by symtree nodes that
1292 are linked together in a balanced binary tree. There can be
1293 several symtrees pointing to the same symbol node via USE
1296 typedef struct gfc_symtree
1298 BBT_HEADER (gfc_symtree);
1303 gfc_symbol *sym; /* Symbol associated with this node */
1305 gfc_common_head *common;
1306 gfc_typebound_proc *tb;
1312 /* A linked list of derived types in the namespace. */
1313 typedef struct gfc_dt_list
1315 struct gfc_symbol *derived;
1316 struct gfc_dt_list *next;
1320 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1322 /* A list of all derived types. */
1323 extern gfc_dt_list *gfc_derived_types;
1325 /* A namespace describes the contents of procedure, module, interface block
1326 or BLOCK construct. */
1327 /* ??? Anything else use these? */
1329 typedef struct gfc_namespace
1331 /* Tree containing all the symbols in this namespace. */
1332 gfc_symtree *sym_root;
1333 /* Tree containing all the user-defined operators in the namespace. */
1334 gfc_symtree *uop_root;
1335 /* Tree containing all the common blocks. */
1336 gfc_symtree *common_root;
1338 /* Tree containing type-bound procedures. */
1339 gfc_symtree *tb_sym_root;
1340 /* Type-bound user operators. */
1341 gfc_symtree *tb_uop_root;
1342 /* For derived-types, store type-bound intrinsic operators here. */
1343 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1344 /* Linked list of finalizer procedures. */
1345 struct gfc_finalizer *finalizers;
1347 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1348 int set_flag[GFC_LETTERS];
1349 /* Keeps track of the implicit types associated with the letters. */
1350 gfc_typespec default_type[GFC_LETTERS];
1351 /* Store the positions of IMPLICIT statements. */
1352 locus implicit_loc[GFC_LETTERS];
1354 /* If this is a namespace of a procedure, this points to the procedure. */
1355 struct gfc_symbol *proc_name;
1356 /* If this is the namespace of a unit which contains executable
1357 code, this points to it. */
1358 struct gfc_code *code;
1360 /* Points to the equivalences set up in this namespace. */
1361 struct gfc_equiv *equiv, *old_equiv;
1363 /* Points to the equivalence groups produced by trans_common. */
1364 struct gfc_equiv_list *equiv_lists;
1366 gfc_interface *op[GFC_INTRINSIC_OPS];
1368 /* Points to the parent namespace, i.e. the namespace of a module or
1369 procedure in which the procedure belonging to this namespace is
1370 contained. The parent namespace points to this namespace either
1371 directly via CONTAINED, or indirectly via the chain built by
1373 struct gfc_namespace *parent;
1374 /* CONTAINED points to the first contained namespace. Sibling
1375 namespaces are chained via SIBLING. */
1376 struct gfc_namespace *contained, *sibling;
1378 gfc_common_head blank_common;
1379 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1381 gfc_st_label *st_labels;
1382 /* This list holds information about all the data initializers in
1384 struct gfc_data *data;
1386 gfc_charlen *cl_list, *old_cl_list;
1388 gfc_dt_list *derived_types;
1390 int save_all, seen_save, seen_implicit_none;
1392 /* Normally we don't need to refcount namespaces. However when we read
1393 a module containing a function with multiple entry points, this
1394 will appear as several functions with the same formal namespace. */
1397 /* A list of all alternate entry points to this procedure (or NULL). */
1398 gfc_entry_list *entries;
1400 /* A list of USE statements in this namespace. */
1401 gfc_use_list *use_stmts;
1403 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1404 unsigned is_block_data:1;
1406 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1407 unsigned has_import_set:1;
1409 /* Set to 1 if resolved has been called for this namespace.
1410 Holds -1 during resolution. */
1413 /* Set to 1 if code has been generated for this namespace. */
1414 unsigned translated:1;
1416 /* Set to 1 if symbols in this namespace should be 'construct entities',
1417 i.e. for BLOCK local variables. */
1418 unsigned construct_entities:1;
1422 extern gfc_namespace *gfc_current_ns;
1423 extern gfc_namespace *gfc_global_ns_list;
1425 /* Global symbols are symbols of global scope. Currently we only use
1426 this to detect collisions already when parsing.
1427 TODO: Extend to verify procedure calls. */
1429 enum gfc_symbol_type
1431 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1432 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1435 typedef struct gfc_gsymbol
1437 BBT_HEADER(gfc_gsymbol);
1440 const char *sym_name;
1441 const char *mod_name;
1442 const char *binding_label;
1443 enum gfc_symbol_type type;
1451 extern gfc_gsymbol *gfc_gsym_root;
1453 /* Information on interfaces being built. */
1456 interface_type type;
1460 gfc_intrinsic_op op;
1464 extern gfc_interface_info current_interface;
1467 /* Array reference. */
1469 enum gfc_array_ref_dimen_type
1471 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_UNKNOWN
1474 typedef struct gfc_array_ref
1477 int dimen; /* # of components in the reference */
1479 bool in_allocate; /* For coarray checks. */
1483 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1484 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1485 *stride[GFC_MAX_DIMENSIONS];
1487 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1489 struct gfc_expr *offset;
1493 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1496 /* Component reference nodes. A variable is stored as an expression
1497 node that points to the base symbol. After that, a singly linked
1498 list of component reference nodes gives the variable's complete
1499 resolution. The array_ref component may be present and comes
1500 before the component component. */
1503 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1506 typedef struct gfc_ref
1512 struct gfc_array_ref ar;
1516 gfc_component *component;
1523 struct gfc_expr *start, *end; /* Substring */
1524 gfc_charlen *length;
1531 struct gfc_ref *next;
1535 #define gfc_get_ref() XCNEW (gfc_ref)
1538 /* Structures representing intrinsic symbols and their arguments lists. */
1539 typedef struct gfc_intrinsic_arg
1541 char name[GFC_MAX_SYMBOL_LEN + 1];
1544 unsigned optional:1, value:1;
1545 ENUM_BITFIELD (sym_intent) intent:2;
1546 gfc_actual_arglist *actual;
1548 struct gfc_intrinsic_arg *next;
1554 /* Specifies the various kinds of check functions used to verify the
1555 argument lists of intrinsic functions. fX with X an integer refer
1556 to check functions of intrinsics with X arguments. f1m is used for
1557 the MAX and MIN intrinsics which can have an arbitrary number of
1558 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1559 these have special semantics. */
1563 gfc_try (*f0)(void);
1564 gfc_try (*f1)(struct gfc_expr *);
1565 gfc_try (*f1m)(gfc_actual_arglist *);
1566 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1567 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1568 gfc_try (*f3ml)(gfc_actual_arglist *);
1569 gfc_try (*f3red)(gfc_actual_arglist *);
1570 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1572 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1573 struct gfc_expr *, struct gfc_expr *);
1577 /* Like gfc_check_f, these specify the type of the simplification
1578 function associated with an intrinsic. The fX are just like in
1579 gfc_check_f. cc is used for type conversion functions. */
1583 struct gfc_expr *(*f0)(void);
1584 struct gfc_expr *(*f1)(struct gfc_expr *);
1585 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1586 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1588 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1589 struct gfc_expr *, struct gfc_expr *);
1590 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1591 struct gfc_expr *, struct gfc_expr *,
1593 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1597 /* Again like gfc_check_f, these specify the type of the resolution
1598 function associated with an intrinsic. The fX are just like in
1599 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1603 void (*f0)(struct gfc_expr *);
1604 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1605 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1606 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1607 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1609 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1610 struct gfc_expr *, struct gfc_expr *);
1611 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1612 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1613 void (*s1)(struct gfc_code *);
1618 typedef struct gfc_intrinsic_sym
1620 const char *name, *lib_name;
1621 gfc_intrinsic_arg *formal;
1623 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1624 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1628 gfc_simplify_f simplify;
1630 gfc_resolve_f resolve;
1631 struct gfc_intrinsic_sym *specific_head, *next;
1638 /* Expression nodes. The expression node types deserve explanations,
1639 since the last couple can be easily misconstrued:
1641 EXPR_OP Operator node pointing to one or two other nodes
1642 EXPR_FUNCTION Function call, symbol points to function's name
1643 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1644 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1645 which expresses structure, array and substring refs.
1646 EXPR_NULL The NULL pointer value (which also has a basic type).
1647 EXPR_SUBSTRING A substring of a constant string
1648 EXPR_STRUCTURE A structure constructor
1649 EXPR_ARRAY An array constructor.
1650 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1651 component or type-bound procedure. */
1656 #define GFC_RND_MODE GMP_RNDN
1657 #define GFC_MPC_RND_MODE MPC_RNDNN
1659 typedef splay_tree gfc_constructor_base;
1661 typedef struct gfc_expr
1665 gfc_typespec ts; /* These two refer to the overall expression */
1668 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1670 /* Nonnull for functions and structure constructors, may also used to hold the
1671 base-object for component calls. */
1672 gfc_symtree *symtree;
1678 /* True if the expression is a call to a function that returns an array,
1679 and if we have decided not to allocate temporary data for that array.
1680 is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1681 denotes a signalling not-a-number. */
1682 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1, is_snan : 1;
1684 /* Sometimes, when an error has been emitted, it is necessary to prevent
1685 it from recurring. */
1686 unsigned int error : 1;
1688 /* Mark an expression where a user operator has been substituted by
1689 a function call in interface.c(gfc_extend_expr). */
1690 unsigned int user_operator : 1;
1692 /* Mark an expression as being a MOLD argument of ALLOCATE. */
1693 unsigned int mold : 1;
1695 /* If an expression comes from a Hollerith constant or compile-time
1696 evaluation of a transfer statement, it may have a prescribed target-
1697 memory representation, and these cannot always be backformed from
1720 gfc_intrinsic_op op;
1722 struct gfc_expr *op1, *op2;
1728 gfc_actual_arglist *actual;
1729 const char *name; /* Points to the ultimate name of the function */
1730 gfc_intrinsic_sym *isym;
1737 gfc_actual_arglist* actual;
1739 /* Base-object, whose component was called. NULL means that it should
1740 be taken from symtree/ref. */
1741 struct gfc_expr* base_object;
1742 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1744 /* For type-bound operators, we want to call PASS procedures but already
1745 have the full arglist; mark this, so that it is not extended by the
1747 unsigned ignore_pass:1;
1749 /* Do assign-calls rather than calls, that is appropriate dependency
1762 gfc_constructor_base constructor;
1770 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1772 /* Structures for information associated with different kinds of
1773 numbers. The first set of integer parameters define all there is
1774 to know about a particular kind. The rest of the elements are
1775 computed from the first elements. */
1779 /* Values really representable by the target. */
1780 mpz_t huge, pedantic_min_int, min_int;
1782 int kind, radix, digits, bit_size, range;
1784 /* True if the C type of the given name maps to this precision.
1785 Note that more than one bit can be set. */
1786 unsigned int c_char : 1;
1787 unsigned int c_short : 1;
1788 unsigned int c_int : 1;
1789 unsigned int c_long : 1;
1790 unsigned int c_long_long : 1;
1794 extern gfc_integer_info gfc_integer_kinds[];
1801 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1802 unsigned int c_bool : 1;
1806 extern gfc_logical_info gfc_logical_kinds[];
1811 mpfr_t epsilon, huge, tiny, subnormal;
1812 int kind, radix, digits, min_exponent, max_exponent;
1813 int range, precision;
1815 /* The precision of the type as reported by GET_MODE_PRECISION. */
1818 /* True if the C type of the given name maps to this precision.
1819 Note that more than one bit can be set. */
1820 unsigned int c_float : 1;
1821 unsigned int c_double : 1;
1822 unsigned int c_long_double : 1;
1826 extern gfc_real_info gfc_real_kinds[];
1835 extern gfc_character_info gfc_character_kinds[];
1838 /* Equivalence structures. Equivalent lvalues are linked along the
1839 *eq pointer, equivalence sets are strung along the *next node. */
1840 typedef struct gfc_equiv
1842 struct gfc_equiv *next, *eq;
1849 #define gfc_get_equiv() XCNEW (gfc_equiv)
1851 /* Holds a single equivalence member after processing. */
1852 typedef struct gfc_equiv_info
1855 HOST_WIDE_INT offset;
1856 HOST_WIDE_INT length;
1857 struct gfc_equiv_info *next;
1860 /* Holds equivalence groups, after they have been processed. */
1861 typedef struct gfc_equiv_list
1863 gfc_equiv_info *equiv;
1864 struct gfc_equiv_list *next;
1867 /* gfc_case stores the selector list of a case statement. The *low
1868 and *high pointers can point to the same expression in the case of
1869 a single value. If *high is NULL, the selection is from *low
1870 upwards, if *low is NULL the selection is *high downwards.
1872 This structure has separate fields to allow single and double linked
1873 lists of CASEs at the same time. The singe linked list along the NEXT
1874 field is a list of cases for a single CASE label. The double linked
1875 list along the LEFT/RIGHT fields is used to detect overlap and to
1876 build a table of the cases for SELECT constructs with a CHARACTER
1879 typedef struct gfc_case
1881 /* Where we saw this case. */
1885 /* Case range values. If (low == high), it's a single value. If one of
1886 the labels is NULL, it's an unbounded case. If both are NULL, this
1887 represents the default case. */
1888 gfc_expr *low, *high;
1890 /* Only used for SELECT TYPE. */
1893 /* Next case label in the list of cases for a single CASE label. */
1894 struct gfc_case *next;
1896 /* Used for detecting overlap, and for code generation. */
1897 struct gfc_case *left, *right;
1899 /* True if this case label can never be matched. */
1904 #define gfc_get_case() XCNEW (gfc_case)
1909 gfc_expr *var, *start, *end, *step;
1913 #define gfc_get_iterator() XCNEW (gfc_iterator)
1916 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1918 typedef struct gfc_alloc
1921 struct gfc_alloc *next;
1925 #define gfc_get_alloc() XCNEW (gfc_alloc)
1930 gfc_expr *unit, *file, *status, *access, *form, *recl,
1931 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1932 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1940 gfc_expr *unit, *status, *iostat, *iomsg;
1948 gfc_expr *unit, *iostat, *iomsg;
1956 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1957 *name, *access, *sequential, *direct, *form, *formatted,
1958 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1959 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1960 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1970 gfc_expr *unit, *iostat, *iomsg, *id;
1971 gfc_st_label *err, *end, *eor;
1978 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1979 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1980 *sign, *extra_comma;
1982 gfc_symbol *namelist;
1983 /* A format_label of `format_asterisk' indicates the "*" format */
1984 gfc_st_label *format_label;
1985 gfc_st_label *err, *end, *eor;
1987 locus eor_where, end_where, err_where;
1992 typedef struct gfc_forall_iterator
1994 gfc_expr *var, *start, *end, *stride;
1995 struct gfc_forall_iterator *next;
1997 gfc_forall_iterator;
2000 /* Linked list to store associations in an ASSOCIATE statement. */
2002 typedef struct gfc_association_list
2004 struct gfc_association_list *next;
2006 /* Whether this is association to a variable that can be changed; otherwise,
2007 it's association to an expression and the name may not be used as
2009 unsigned variable:1;
2011 /* True if this struct is currently only linked to from a gfc_symbol rather
2012 than as part of a real list in gfc_code->ext.block.assoc. This may
2013 happen for SELECT TYPE temporaries and must be considered
2014 for memory handling. */
2015 unsigned dangling:1;
2017 char name[GFC_MAX_SYMBOL_LEN + 1];
2018 gfc_symtree *st; /* Symtree corresponding to name. */
2023 gfc_association_list;
2024 #define gfc_get_association_list() XCNEW (gfc_association_list)
2027 /* Executable statements that fill gfc_code structures. */
2030 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
2031 EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2032 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2033 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2034 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK,
2035 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
2036 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE,
2037 EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
2038 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2039 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2040 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2041 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2042 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2043 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2044 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2045 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2046 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
2050 typedef struct gfc_code
2054 struct gfc_code *block, *next;
2057 gfc_st_label *here, *label1, *label2, *label3;
2058 gfc_symtree *symtree;
2059 gfc_expr *expr1, *expr2, *expr3;
2060 /* A name isn't sufficient to identify a subroutine, we need the actual
2061 symbol for the interface definition.
2062 const char *sub_name; */
2063 gfc_symbol *resolved_sym;
2064 gfc_intrinsic_sym *resolved_isym;
2068 gfc_actual_arglist *actual;
2069 gfc_case *case_list;
2070 gfc_iterator *iterator;
2082 gfc_association_list *assoc;
2088 gfc_filepos *filepos;
2089 gfc_inquire *inquire;
2092 gfc_forall_iterator *forall_iterator;
2093 struct gfc_code *whichloop;
2095 gfc_entry_list *entry;
2096 gfc_omp_clauses *omp_clauses;
2097 const char *omp_name;
2098 gfc_namelist *omp_namelist;
2101 ext; /* Points to additional structures required by statement */
2103 /* Cycle and break labels in do loops. */
2110 /* Storage for DATA statements. */
2111 typedef struct gfc_data_variable
2115 struct gfc_data_variable *list, *next;
2120 typedef struct gfc_data_value
2124 struct gfc_data_value *next;
2129 typedef struct gfc_data
2131 gfc_data_variable *var;
2132 gfc_data_value *value;
2135 struct gfc_data *next;
2140 /* Structure for holding compile options */
2144 gfc_source_form source_form;
2145 /* Maximum line lengths in fixed- and free-form source, respectively.
2146 When fixed_line_length or free_line_length are 0, the whole line is used,
2147 regardless of length.
2149 If the user requests a fixed_line_length <7 then gfc_init_options()
2150 emits a fatal error. */
2151 int fixed_line_length;
2152 int free_line_length;
2153 /* Maximum number of continuation lines in fixed- and free-form source,
2155 int max_continue_fixed;
2156 int max_continue_free;
2157 int max_identifier_length;
2158 int dump_parse_tree;
2162 int warn_conversion;
2163 int warn_conversion_extra;
2164 int warn_implicit_interface;
2165 int warn_implicit_procedure;
2166 int warn_line_truncation;
2167 int warn_surprising;
2170 int warn_intrinsic_shadow;
2171 int warn_intrinsics_std;
2172 int warn_character_truncation;
2173 int warn_array_temp;
2174 int warn_align_commons;
2175 int warn_unused_dummy_argument;
2178 int flag_all_intrinsics;
2179 int flag_default_double;
2180 int flag_default_integer;
2181 int flag_default_real;
2183 int flag_underscoring;
2184 int flag_second_underscore;
2185 int flag_implicit_none;
2186 int flag_max_stack_var_size;
2187 int flag_max_array_constructor;
2188 int flag_range_check;
2189 int flag_pack_derived;
2190 int flag_repack_arrays;
2191 int flag_preprocessed;
2196 int flag_allow_leading_underscore;
2198 int flag_external_blas;
2199 int blas_matmul_limit;
2200 int flag_cray_pointer;
2204 int flag_module_private;
2206 int flag_init_local_zero;
2207 int flag_init_integer;
2208 int flag_init_integer_value;
2210 int flag_init_logical;
2211 int flag_init_character;
2212 char flag_init_character_value;
2213 int flag_align_commons;
2214 int flag_whole_file;
2215 int flag_protect_parens;
2219 gfc_fcoarray coarray;
2225 int max_subrecord_length;
2229 extern gfc_option_t gfc_option;
2231 /* Constructor nodes for array and structure constructors. */
2232 typedef struct gfc_constructor
2234 gfc_constructor_base base;
2235 mpz_t offset; /* Offset within a constructor, used as
2239 gfc_iterator *iterator;
2244 gfc_component *component; /* Record the component being initialized. */
2251 typedef struct iterator_stack
2253 gfc_symtree *variable;
2255 struct iterator_stack *prev;
2258 extern iterator_stack *iter_stack;
2261 /* Used for (possibly nested) SELECT TYPE statements. */
2262 typedef struct gfc_select_type_stack
2264 gfc_symbol *selector; /* Current selector variable. */
2265 gfc_symtree *tmp; /* Current temporary variable. */
2266 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2268 gfc_select_type_stack;
2269 extern gfc_select_type_stack *select_type_stack;
2270 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2273 /* Node in the linked list used for storing finalizer procedures. */
2275 typedef struct gfc_finalizer
2277 struct gfc_finalizer* next;
2278 locus where; /* Where the FINAL declaration occurred. */
2280 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2281 symtree and later need only that. This way, we can access and call the
2282 finalizers from every context as they should be "always accessible". I
2283 don't make this a union because we need the information whether proc_sym is
2284 still referenced or not for dereferencing it on deleting a gfc_finalizer
2286 gfc_symbol* proc_sym;
2287 gfc_symtree* proc_tree;
2290 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2293 /************************ Function prototypes *************************/
2296 bool gfc_in_match_data (void);
2297 match gfc_match_char_spec (gfc_typespec *);
2300 void gfc_scanner_done_1 (void);
2301 void gfc_scanner_init_1 (void);
2303 void gfc_add_include_path (const char *, bool, bool);
2304 void gfc_add_intrinsic_modules_path (const char *);
2305 void gfc_release_include_path (void);
2306 FILE *gfc_open_included_file (const char *, bool, bool);
2307 FILE *gfc_open_intrinsic_module (const char *);
2309 int gfc_at_end (void);
2310 int gfc_at_eof (void);
2311 int gfc_at_bol (void);
2312 int gfc_at_eol (void);
2313 void gfc_advance_line (void);
2314 int gfc_check_include (void);
2315 int gfc_define_undef_line (void);
2317 int gfc_wide_is_printable (gfc_char_t);
2318 int gfc_wide_is_digit (gfc_char_t);
2319 int gfc_wide_fits_in_byte (gfc_char_t);
2320 gfc_char_t gfc_wide_tolower (gfc_char_t);
2321 gfc_char_t gfc_wide_toupper (gfc_char_t);
2322 size_t gfc_wide_strlen (const gfc_char_t *);
2323 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2324 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2325 char *gfc_widechar_to_char (const gfc_char_t *, int);
2326 gfc_char_t *gfc_char_to_widechar (const char *);
2328 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2330 void gfc_skip_comments (void);
2331 gfc_char_t gfc_next_char_literal (int);
2332 gfc_char_t gfc_next_char (void);
2333 char gfc_next_ascii_char (void);
2334 gfc_char_t gfc_peek_char (void);
2335 char gfc_peek_ascii_char (void);
2336 void gfc_error_recovery (void);
2337 void gfc_gobble_whitespace (void);
2338 gfc_try gfc_new_file (void);
2339 const char * gfc_read_orig_filename (const char *, const char **);
2341 extern gfc_source_form gfc_current_form;
2342 extern const char *gfc_source_file;
2343 extern locus gfc_current_locus;
2345 void gfc_start_source_files (void);
2346 void gfc_end_source_files (void);
2349 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2350 void gfc_free (void *);
2351 int gfc_terminal_width (void);
2352 void gfc_clear_ts (gfc_typespec *);
2353 FILE *gfc_open_file (const char *);
2354 const char *gfc_basic_typename (bt);
2355 const char *gfc_typename (gfc_typespec *);
2356 const char *gfc_op2string (gfc_intrinsic_op);
2357 const char *gfc_code2string (const mstring *, int);
2358 int gfc_string2code (const mstring *, const char *);
2359 const char *gfc_intent_string (sym_intent);
2361 void gfc_init_1 (void);
2362 void gfc_init_2 (void);
2363 void gfc_done_1 (void);
2364 void gfc_done_2 (void);
2366 int get_c_kind (const char *, CInteropKind_t *);
2369 unsigned int gfc_option_lang_mask (void);
2370 void gfc_init_options (unsigned int,
2371 struct cl_decoded_option *);
2372 bool gfc_handle_option (size_t, const char *, int, int,
2373 const struct cl_option_handlers *);
2374 bool gfc_post_options (const char **);
2377 void gfc_maybe_initialize_eh (void);
2380 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2381 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2385 typedef struct gfc_error_buf
2388 size_t allocated, index;
2392 void gfc_error_init_1 (void);
2393 void gfc_buffer_error (int);
2395 const char *gfc_print_wide_char (gfc_char_t);
2397 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2398 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2399 void gfc_clear_warning (void);
2400 void gfc_warning_check (void);
2402 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2403 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2404 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2405 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2406 void gfc_clear_error (void);
2407 int gfc_error_check (void);
2408 int gfc_error_flag_test (void);
2410 notification gfc_notification_std (int);
2411 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2413 /* A general purpose syntax error. */
2414 #define gfc_syntax_error(ST) \
2415 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2417 void gfc_push_error (gfc_error_buf *);
2418 void gfc_pop_error (gfc_error_buf *);
2419 void gfc_free_error (gfc_error_buf *);
2421 void gfc_get_errors (int *, int *);
2422 void gfc_errors_to_warnings (int);
2425 void gfc_arith_init_1 (void);
2426 void gfc_arith_done_1 (void);
2427 arith gfc_check_integer_range (mpz_t p, int kind);
2428 bool gfc_check_character_range (gfc_char_t, int);
2431 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2432 int gfc_validate_kind (bt, int, bool);
2433 int gfc_get_int_kind_from_width_isofortranenv (int size);
2434 int gfc_get_real_kind_from_width_isofortranenv (int size);
2435 tree gfc_get_derived_type (gfc_symbol * derived);
2436 extern int gfc_index_integer_kind;
2437 extern int gfc_default_integer_kind;
2438 extern int gfc_max_integer_kind;
2439 extern int gfc_default_real_kind;
2440 extern int gfc_default_double_kind;
2441 extern int gfc_default_character_kind;
2442 extern int gfc_default_logical_kind;
2443 extern int gfc_default_complex_kind;
2444 extern int gfc_c_int_kind;
2445 extern int gfc_intio_kind;
2446 extern int gfc_charlen_int_kind;
2447 extern int gfc_numeric_storage_size;
2448 extern int gfc_character_storage_size;
2451 void gfc_clear_new_implicit (void);
2452 gfc_try gfc_add_new_implicit_range (int, int);
2453 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2454 void gfc_set_implicit_none (void);
2455 void gfc_check_function_type (gfc_namespace *);
2456 bool gfc_is_intrinsic_typename (const char *);
2458 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2459 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2461 void gfc_set_sym_referenced (gfc_symbol *);
2463 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2464 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2465 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2466 gfc_try gfc_add_codimension (symbol_attribute *, const char *, locus *);
2467 gfc_try gfc_add_contiguous (symbol_attribute *, const char *, locus *);
2468 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2469 gfc_try gfc_add_external (symbol_attribute *, locus *);
2470 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2471 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2472 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2473 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2474 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2475 match gfc_mod_pointee_as (gfc_array_spec *);
2476 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2477 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2478 gfc_try gfc_add_save (symbol_attribute *, save_state, const char *, locus *);
2479 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2480 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2481 gfc_try gfc_add_target (symbol_attribute *, locus *);
2482 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2483 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2484 gfc_try gfc_add_common (symbol_attribute *, locus *);
2485 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2486 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2487 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2488 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2489 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2490 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2491 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2492 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2493 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2494 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2495 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2496 gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
2497 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2498 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2500 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2501 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2502 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2503 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2504 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2505 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2506 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2507 const char *, locus *);
2508 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2509 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2510 gfc_formal_arglist *, locus *);
2511 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2513 void gfc_clear_attr (symbol_attribute *);
2514 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2515 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2517 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2518 gfc_symbol *gfc_use_derived (gfc_symbol *);
2519 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2520 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2522 gfc_st_label *gfc_get_st_label (int);
2523 void gfc_free_st_label (gfc_st_label *);
2524 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2525 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2527 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2529 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2530 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2531 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2532 void gfc_delete_symtree (gfc_symtree **, const char *);
2533 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2534 gfc_user_op *gfc_get_uop (const char *);
2535 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2536 void gfc_free_symbol (gfc_symbol *);
2537 void gfc_release_symbol (gfc_symbol *);
2538 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2539 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *);
2540 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2541 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2542 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2543 gfc_try verify_c_interop (gfc_typespec *);
2544 gfc_try verify_c_interop_param (gfc_symbol *);
2545 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2546 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2547 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2548 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2549 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2550 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2551 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2552 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2554 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2556 void gfc_undo_symbols (void);
2557 void gfc_commit_symbols (void);
2558 void gfc_commit_symbol (gfc_symbol *);
2559 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2560 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2561 void gfc_free_namespace (gfc_namespace *);
2563 void gfc_symbol_init_2 (void);
2564 void gfc_symbol_done_2 (void);
2566 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2567 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2568 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2569 void gfc_save_all (gfc_namespace *);
2571 void gfc_enforce_clean_symbol_state (void);
2572 void gfc_free_dt_list (void);
2575 gfc_gsymbol *gfc_get_gsymbol (const char *);
2576 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2578 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
2579 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2580 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
2581 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
2582 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
2584 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2585 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2586 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2588 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2590 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2591 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*);
2593 bool gfc_is_associate_pointer (gfc_symbol*);
2595 /* intrinsic.c -- true if working in an init-expr, false otherwise. */
2596 extern bool gfc_init_expr_flag;
2598 /* Given a symbol that we have decided is intrinsic, mark it as such
2599 by placing it into a special module that is otherwise impossible to
2602 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2604 void gfc_intrinsic_init_1 (void);
2605 void gfc_intrinsic_done_1 (void);
2607 char gfc_type_letter (bt);
2608 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2609 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2610 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2611 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2612 int gfc_generic_intrinsic (const char *);
2613 int gfc_specific_intrinsic (const char *);
2614 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2615 int gfc_intrinsic_actual_ok (const char *, const bool);
2616 gfc_intrinsic_sym *gfc_find_function (const char *);
2617 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2619 match gfc_intrinsic_func_interface (gfc_expr *, int);
2620 match gfc_intrinsic_sub_interface (gfc_code *, int);
2622 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2623 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2626 /* match.c -- FIXME */
2627 void gfc_free_iterator (gfc_iterator *, int);
2628 void gfc_free_forall_iterator (gfc_forall_iterator *);
2629 void gfc_free_alloc_list (gfc_alloc *);
2630 void gfc_free_namelist (gfc_namelist *);
2631 void gfc_free_equiv (gfc_equiv *);
2632 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *);
2633 void gfc_free_data (gfc_data *);
2634 void gfc_free_case_list (gfc_case *);
2636 /* matchexp.c -- FIXME too? */
2637 gfc_expr *gfc_get_parentheses (gfc_expr *);
2640 void gfc_free_omp_clauses (gfc_omp_clauses *);
2641 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2642 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2643 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2644 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2647 void gfc_free_actual_arglist (gfc_actual_arglist *);
2648 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2649 const char *gfc_extract_int (gfc_expr *, int *);
2650 bool is_subref_array (gfc_expr *);
2651 bool gfc_is_simply_contiguous (gfc_expr *, bool);
2653 gfc_expr *gfc_build_conversion (gfc_expr *);
2654 void gfc_free_ref_list (gfc_ref *);
2655 void gfc_type_convert_binary (gfc_expr *, int);
2656 int gfc_is_constant_expr (gfc_expr *);
2657 gfc_try gfc_simplify_expr (gfc_expr *, int);
2658 int gfc_has_vector_index (gfc_expr *);
2660 gfc_expr *gfc_get_expr (void);
2661 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
2662 gfc_expr *gfc_get_null_expr (locus *);
2663 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
2664 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
2665 gfc_expr *gfc_get_constant_expr (bt, int, locus *);
2666 gfc_expr *gfc_get_character_expr (int, locus *, const char *, int len);
2667 gfc_expr *gfc_get_int_expr (int, locus *, int);
2668 gfc_expr *gfc_get_logical_expr (int, locus *, bool);
2669 gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
2671 void gfc_free_expr (gfc_expr *);
2672 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2673 mpz_t *gfc_copy_shape (mpz_t *, int);
2674 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2675 gfc_expr *gfc_copy_expr (gfc_expr *);
2676 gfc_ref* gfc_copy_ref (gfc_ref*);
2678 gfc_try gfc_specification_expr (gfc_expr *);
2680 int gfc_numeric_ts (gfc_typespec *);
2681 int gfc_kind_max (gfc_expr *, gfc_expr *);
2683 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2684 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2685 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2686 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2688 bool gfc_has_default_initializer (gfc_symbol *);
2689 gfc_expr *gfc_default_initializer (gfc_typespec *);
2690 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2692 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
2694 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2695 bool (*)(gfc_expr *, gfc_symbol *, int*),
2697 void gfc_expr_set_symbols_referenced (gfc_expr *);
2698 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2699 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2700 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2702 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2704 bool gfc_is_coindexed (gfc_expr *);
2705 bool gfc_get_corank (gfc_expr *);
2706 bool gfc_has_ultimate_allocatable (gfc_expr *);
2707 bool gfc_has_ultimate_pointer (gfc_expr *);
2709 gfc_expr* gfc_build_intrinsic_call (const char*, locus, unsigned, ...);
2713 extern gfc_code new_st;
2715 void gfc_clear_new_st (void);
2716 gfc_code *gfc_get_code (void);
2717 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2718 void gfc_free_statement (gfc_code *);
2719 void gfc_free_statements (gfc_code *);
2720 void gfc_free_association_list (gfc_association_list *);
2723 gfc_try gfc_resolve_expr (gfc_expr *);
2724 void gfc_resolve (gfc_namespace *);
2725 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2726 int gfc_impure_variable (gfc_symbol *);
2727 int gfc_pure (gfc_symbol *);
2728 int gfc_elemental (gfc_symbol *);
2729 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2730 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2731 gfc_try gfc_resolve_index (gfc_expr *, int);
2732 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2733 int gfc_is_formal_arg (void);
2734 void gfc_resolve_substring_charlen (gfc_expr *);
2735 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2736 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2737 bool gfc_type_is_extensible (gfc_symbol *sym);
2741 gfc_iterator *gfc_copy_iterator (gfc_iterator *);
2743 void gfc_free_array_spec (gfc_array_spec *);
2744 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2746 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2747 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2748 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2750 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2752 void gfc_simplify_iterator_var (gfc_expr *);
2753 gfc_try gfc_expand_constructor (gfc_expr *, bool);
2754 int gfc_constant_ac (gfc_expr *);
2755 int gfc_expanded_ac (gfc_expr *);
2756 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2757 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2758 gfc_try gfc_check_constructor_type (gfc_expr *);
2759 gfc_try gfc_check_iter_variable (gfc_expr *);
2760 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2761 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2762 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2763 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2764 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2765 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2766 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2767 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2768 int gfc_is_compile_time_shape (gfc_array_spec *);
2770 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *);
2773 /* interface.c -- FIXME: some of these should be in symbol.c */
2774 void gfc_free_interface (gfc_interface *);
2775 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2776 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2777 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2779 void gfc_check_interfaces (gfc_namespace *);
2780 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2781 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2782 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2783 gfc_actual_arglist **);
2784 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2785 void gfc_free_formal_arglist (gfc_formal_arglist *);
2786 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2787 gfc_try gfc_add_interface (gfc_symbol *);
2788 gfc_interface *gfc_current_interface_head (void);
2789 void gfc_set_current_interface_head (gfc_interface *);
2790 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2791 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2792 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2793 int gfc_has_vector_subscript (gfc_expr*);
2796 extern gfc_st_label format_asterisk;
2798 void gfc_free_open (gfc_open *);
2799 gfc_try gfc_resolve_open (gfc_open *);
2800 void gfc_free_close (gfc_close *);
2801 gfc_try gfc_resolve_close (gfc_close *);
2802 void gfc_free_filepos (gfc_filepos *);
2803 gfc_try gfc_resolve_filepos (gfc_filepos *);
2804 void gfc_free_inquire (gfc_inquire *);
2805 gfc_try gfc_resolve_inquire (gfc_inquire *);
2806 void gfc_free_dt (gfc_dt *);
2807 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2808 void gfc_free_wait (gfc_wait *);
2809 gfc_try gfc_resolve_wait (gfc_wait *);
2812 void gfc_module_init_2 (void);
2813 void gfc_module_done_2 (void);
2814 void gfc_dump_module (const char *, int);
2815 bool gfc_check_access (gfc_access, gfc_access);
2816 void gfc_free_use_stmts (gfc_use_list *);
2819 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2820 symbol_attribute gfc_expr_attr (gfc_expr *);
2821 match gfc_match_rvalue (gfc_expr **);
2822 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2823 int gfc_check_digit (char, int);
2824 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
2827 void gfc_generate_code (gfc_namespace *);
2828 void gfc_generate_module_code (gfc_namespace *);
2831 typedef int (*compare_fn) (void *, void *);
2832 void gfc_insert_bbt (void *, void *, compare_fn);
2833 void gfc_delete_bbt (void *, void *, compare_fn);
2835 /* dump-parse-tree.c */
2836 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2839 gfc_try gfc_parse_file (void);
2840 void gfc_global_used (gfc_gsymbol *, locus *);
2841 gfc_namespace* gfc_build_block_ns (gfc_namespace *);
2844 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2847 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2850 void gfc_add_component_ref (gfc_expr *, const char *);
2851 gfc_expr *gfc_class_null_initializer (gfc_typespec *);
2852 gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
2853 gfc_array_spec **, bool);
2854 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
2855 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2856 const char*, bool, locus*);
2857 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2858 const char*, bool, locus*);
2859 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2860 gfc_intrinsic_op, bool,
2862 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2864 #define CLASS_DATA(sym) sym->ts.u.derived->components
2866 /* frontend-passes.c */
2868 void gfc_run_passes (gfc_namespace *);
2870 #endif /* GCC_GFORTRAN_H */