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 /* Expression node types. */
144 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
145 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC
151 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
152 AS_ASSUMED_SIZE, AS_IMPLIED_SHAPE, AS_UNKNOWN
157 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
160 /* Statement label types. */
162 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
163 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
167 /* Intrinsic operators. */
169 { GFC_INTRINSIC_BEGIN = 0,
170 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
171 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
172 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
173 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
174 /* ==, /=, >, >=, <, <= */
175 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
176 INTRINSIC_LT, INTRINSIC_LE,
177 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
178 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
179 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
180 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
181 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
186 /* This macro is the number of intrinsic operators that exist.
187 Assumptions are made about the numbering of the interface_op enums. */
188 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
190 /* Arithmetic results. */
192 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
193 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT
200 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE,
201 ST_BACKSPACE, ST_BLOCK, ST_BLOCK_DATA,
202 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
203 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
204 ST_ELSEWHERE, ST_END_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA,
205 ST_ENDDO, ST_IMPLIED_ENDDO,
206 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
207 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
208 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
209 ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION,
210 ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT,
211 ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY, ST_SYNC_IMAGES,
212 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
213 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
214 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT,
215 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
216 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
217 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS,
218 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
219 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
220 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
221 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
222 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
223 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
224 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
225 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
226 ST_OMP_TASKWAIT, ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL,
227 ST_GET_FCN_CHARACTERISTICS, ST_NONE
232 /* Types of interfaces that we can have. Assignment interfaces are
233 considered to be intrinsic operators. */
236 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
237 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
241 /* Symbol flavors: these are all mutually exclusive.
242 10 elements = 4 bits. */
243 typedef enum sym_flavor
245 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
246 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
251 /* Procedure types. 7 elements = 3 bits. */
252 typedef enum procedure_type
253 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
254 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
259 typedef enum sym_intent
260 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
265 typedef enum gfc_access
266 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
270 /* Flags to keep track of where an interface came from.
271 3 elements = 2 bits. */
273 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */
274 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */
275 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement
276 with explicit interface. */
280 /* Whether a SAVE attribute was set explicitly or implicitly. */
281 typedef enum save_state
282 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
286 /* Strings for all symbol attributes. We use these for dumping the
287 parse tree, in error messages, and also when reading and writing
288 modules. In symbol.c. */
289 extern const mstring flavors[];
290 extern const mstring procedures[];
291 extern const mstring intents[];
292 extern const mstring access_types[];
293 extern const mstring ifsrc_types[];
294 extern const mstring save_status[];
296 /* Enumeration of all the generic intrinsic functions. Used by the
297 backend for identification of a function. */
301 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
302 the backend (e.g. KIND). */
337 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
338 GFC_ISYM_COMPILER_OPTIONS,
339 GFC_ISYM_COMPILER_VERSION,
350 GFC_ISYM_DATE_AND_TIME,
354 GFC_ISYM_DOT_PRODUCT,
363 GFC_ISYM_ERFC_SCALED,
365 GFC_ISYM_EXECUTE_COMMAND_LINE,
369 GFC_ISYM_EXTENDS_TYPE_OF,
386 GFC_ISYM_GET_COMMAND,
387 GFC_ISYM_GET_COMMAND_ARGUMENT,
390 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
411 GFC_ISYM_IMAGE_INDEX,
420 GFC_ISYM_IS_IOSTAT_END,
421 GFC_ISYM_IS_IOSTAT_EOR,
456 GFC_ISYM_MAXEXPONENT,
464 GFC_ISYM_MINEXPONENT,
489 GFC_ISYM_RANDOM_NUMBER,
490 GFC_ISYM_RANDOM_SEED,
498 GFC_ISYM_SAME_TYPE_AS,
504 GFC_ISYM_SET_EXPONENT,
523 GFC_ISYM_STORAGE_SIZE,
528 GFC_ISYM_SYSTEM_CLOCK,
552 typedef enum gfc_isym_id gfc_isym_id;
557 GFC_INIT_REAL_OFF = 0,
562 GFC_INIT_REAL_NEG_INF
568 GFC_INIT_LOGICAL_OFF = 0,
569 GFC_INIT_LOGICAL_FALSE,
570 GFC_INIT_LOGICAL_TRUE
576 GFC_INIT_CHARACTER_OFF = 0,
577 GFC_INIT_CHARACTER_ON
579 init_local_character;
583 GFC_INIT_INTEGER_OFF = 0,
590 GFC_FCOARRAY_NONE = 0,
604 /************************* Structures *****************************/
606 /* Used for keeping things in balanced binary trees. */
607 #define BBT_HEADER(self) int priority; struct self *left, *right
609 #define NAMED_INTCST(a,b,c,d) a,
610 #define NAMED_KINDARRAY(a,b,c,d) a,
611 #define NAMED_FUNCTION(a,b,c,d) a,
614 ISOFORTRANENV_INVALID = -1,
615 #include "iso-fortran-env.def"
616 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
618 iso_fortran_env_symbol;
620 #undef NAMED_KINDARRAY
621 #undef NAMED_FUNCTION
623 #define NAMED_INTCST(a,b,c,d) a,
624 #define NAMED_REALCST(a,b,c) a,
625 #define NAMED_CMPXCST(a,b,c) a,
626 #define NAMED_LOGCST(a,b,c) a,
627 #define NAMED_CHARKNDCST(a,b,c) a,
628 #define NAMED_CHARCST(a,b,c) a,
629 #define DERIVED_TYPE(a,b,c) a,
630 #define PROCEDURE(a,b) a,
631 #define NAMED_FUNCTION(a,b,c,d) a,
634 ISOCBINDING_INVALID = -1,
635 #include "iso-c-binding.def"
637 ISOCBINDING_NUMBER = ISOCBINDING_LAST
639 iso_c_binding_symbol;
644 #undef NAMED_CHARKNDCST
648 #undef NAMED_FUNCTION
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 /* This is a temporary selector for SELECT TYPE. */
788 unsigned select_type_temporary:1;
790 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
791 unsigned ext_attr:EXT_ATTR_NUM;
793 /* The namespace where the attribute has been set. */
794 struct gfc_namespace *volatile_ns, *asynchronous_ns;
799 /* We need to store source lines as sequences of multibyte source
800 characters. We define here a type wide enough to hold any multibyte
801 source character, just like libcpp does. A 32-bit type is enough. */
803 #if HOST_BITS_PER_INT >= 32
804 typedef unsigned int gfc_char_t;
805 #elif HOST_BITS_PER_LONG >= 32
806 typedef unsigned long gfc_char_t;
807 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
808 typedef unsigned long long gfc_char_t;
810 # error "Cannot find an integer type with at least 32 bits"
814 /* The following three structures are used to identify a location in
817 gfc_file is used to maintain a tree of the source files and how
818 they include each other
820 gfc_linebuf holds a single line of source code and information
821 which file it resides in
823 locus point to the sourceline and the character in the source
827 typedef struct gfc_file
829 struct gfc_file *next, *up;
830 int inclusion_line, line;
834 typedef struct gfc_linebuf
836 source_location location;
837 struct gfc_file *file;
838 struct gfc_linebuf *next;
846 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
848 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
856 /* In order for the "gfc" format checking to work correctly, you must
857 have declared a typedef locus first. */
858 #if GCC_VERSION >= 4001
859 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
861 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
865 /* Suppress error messages or re-enable them. */
867 void gfc_push_suppress_errors (void);
868 void gfc_pop_suppress_errors (void);
871 /* Character length structures hold the expression that gives the
872 length of a character variable. We avoid putting these into
873 gfc_typespec because doing so prevents us from doing structure
874 copies and forces us to deallocate any typespecs we create, as well
875 as structures that contain typespecs. They also can have multiple
876 character typespecs pointing to them.
878 These structures form a singly linked list within the current
879 namespace and are deallocated with the namespace. It is possible to
880 end up with gfc_charlen structures that have nothing pointing to them. */
882 typedef struct gfc_charlen
884 struct gfc_expr *length;
885 struct gfc_charlen *next;
886 bool length_from_typespec; /* Length from explicit array ctor typespec? */
888 tree passed_length; /* Length argument explicitelly passed. */
894 #define gfc_get_charlen() XCNEW (gfc_charlen)
896 /* Type specification structure. */
904 struct gfc_symbol *derived; /* For derived types only. */
905 gfc_charlen *cl; /* For character types only. */
906 int pad; /* For hollerith types only. */
910 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
917 /* Array specification. */
920 int rank; /* A rank of zero means that a variable is a scalar. */
922 array_type type, cotype;
923 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
925 /* These two fields are used with the Cray Pointer extension. */
926 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
927 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
928 AS_EXPLICIT, but we want to remember that we
934 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
937 /* Components of derived types. */
938 typedef struct gfc_component
943 symbol_attribute attr;
948 struct gfc_expr *initializer;
949 struct gfc_component *next;
951 /* Needed for procedure pointer components. */
952 struct gfc_formal_arglist *formal;
953 struct gfc_namespace *formal_ns;
954 struct gfc_typebound_proc *tb;
958 #define gfc_get_component() XCNEW (gfc_component)
960 /* Formal argument lists are lists of symbols. */
961 typedef struct gfc_formal_arglist
963 /* Symbol representing the argument at this position in the arglist. */
964 struct gfc_symbol *sym;
965 /* Points to the next formal argument. */
966 struct gfc_formal_arglist *next;
970 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
973 /* The gfc_actual_arglist structure is for actual arguments. */
974 typedef struct gfc_actual_arglist
977 /* Alternate return label when the expr member is null. */
978 struct gfc_st_label *label;
980 /* This is set to the type of an eventual omitted optional
981 argument. This is used to determine if a hidden string length
982 argument has to be added to a function call. */
985 struct gfc_expr *expr;
986 struct gfc_actual_arglist *next;
990 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
993 /* Because a symbol can belong to multiple namelists, they must be
994 linked externally to the symbol itself. */
995 typedef struct gfc_namelist
997 struct gfc_symbol *sym;
998 struct gfc_namelist *next;
1002 #define gfc_get_namelist() XCNEW (gfc_namelist)
1007 OMP_LIST_FIRSTPRIVATE,
1008 OMP_LIST_LASTPRIVATE,
1009 OMP_LIST_COPYPRIVATE,
1013 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
1025 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
1029 /* Because a symbol can belong to multiple namelists, they must be
1030 linked externally to the symbol itself. */
1032 enum gfc_omp_sched_kind
1042 enum gfc_omp_default_sharing
1044 OMP_DEFAULT_UNKNOWN,
1046 OMP_DEFAULT_PRIVATE,
1048 OMP_DEFAULT_FIRSTPRIVATE
1051 typedef struct gfc_omp_clauses
1053 struct gfc_expr *if_expr;
1054 struct gfc_expr *num_threads;
1055 gfc_namelist *lists[OMP_LIST_NUM];
1056 enum gfc_omp_sched_kind sched_kind;
1057 struct gfc_expr *chunk_size;
1058 enum gfc_omp_default_sharing default_sharing;
1060 bool nowait, ordered, untied;
1064 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1067 /* The gfc_st_label structure is a BBT attached to a namespace that
1068 records the usage of statement labels within that space. */
1070 typedef struct gfc_st_label
1072 BBT_HEADER(gfc_st_label);
1076 gfc_sl_type defined, referenced;
1078 struct gfc_expr *format;
1087 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1088 typedef struct gfc_interface
1090 struct gfc_symbol *sym;
1092 struct gfc_interface *next;
1096 #define gfc_get_interface() XCNEW (gfc_interface)
1098 /* User operator nodes. These are like stripped down symbols. */
1104 struct gfc_namespace *ns;
1110 /* A list of specific bindings that are associated with a generic spec. */
1111 typedef struct gfc_tbp_generic
1113 /* The parser sets specific_st, upon resolution we look for the corresponding
1114 gfc_typebound_proc and set specific for further use. */
1115 struct gfc_symtree* specific_st;
1116 struct gfc_typebound_proc* specific;
1118 struct gfc_tbp_generic* next;
1122 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1125 /* Data needed for type-bound procedures. */
1126 typedef struct gfc_typebound_proc
1128 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1132 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1133 gfc_tbp_generic* generic;
1138 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1140 /* The overridden type-bound proc (or GENERIC with this name in the
1141 parent-type) or NULL if non. */
1142 struct gfc_typebound_proc* overridden;
1144 /* Once resolved, we use the position of pass_arg in the formal arglist of
1145 the binding-target procedure to identify it. The first argument has
1146 number 1 here, the second 2, and so on. */
1147 unsigned pass_arg_num;
1149 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1150 unsigned non_overridable:1;
1151 unsigned deferred:1;
1152 unsigned is_generic:1;
1153 unsigned function:1, subroutine:1;
1154 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1160 /* Symbol nodes. These are important things. They are what the
1161 standard refers to as "entities". The possibly multiple names that
1162 refer to the same entity are accomplished by a binary tree of
1163 symtree structures that is balanced by the red-black method-- more
1164 than one symtree node can point to any given symbol. */
1166 typedef struct gfc_symbol
1168 const char *name; /* Primary name, before renaming */
1169 const char *module; /* Module this symbol came from */
1173 symbol_attribute attr;
1175 /* The formal member points to the formal argument list if the
1176 symbol is a function or subroutine name. If the symbol is a
1177 generic name, the generic member points to the list of
1180 gfc_interface *generic;
1181 gfc_access component_access;
1183 gfc_formal_arglist *formal;
1184 struct gfc_namespace *formal_ns;
1185 struct gfc_namespace *f2k_derived;
1187 struct gfc_expr *value; /* Parameter/Initializer value */
1189 struct gfc_symbol *result; /* function result symbol */
1190 gfc_component *components; /* Derived type components */
1192 /* Defined only for Cray pointees; points to their pointer. */
1193 struct gfc_symbol *cp_pointer;
1195 int entry_id; /* Used in resolve.c for entries. */
1197 /* CLASS hashed name for declared and dynamic types in the class. */
1200 struct gfc_symbol *common_next; /* Links for COMMON syms */
1202 /* This is in fact a gfc_common_head but it is only used for pointer
1203 comparisons to check if symbols are in the same common block. */
1204 struct gfc_common_head* common_head;
1206 /* Make sure setup code for dummy arguments is generated in the correct
1210 gfc_namelist *namelist, *namelist_tail;
1212 /* Change management fields. Symbols that might be modified by the
1213 current statement have the mark member nonzero and are kept in a
1214 singly linked list through the tlink field. Of these symbols,
1215 symbols with old_symbol equal to NULL are symbols created within
1216 the current statement. Otherwise, old_symbol points to a copy of
1219 struct gfc_symbol *old_symbol, *tlink;
1220 unsigned mark:1, gfc_new:1;
1221 /* Nonzero if all equivalences associated with this symbol have been
1223 unsigned equiv_built:1;
1224 /* Set if this variable is used as an index name in a FORALL. */
1225 unsigned forall_index:1;
1227 struct gfc_namespace *ns; /* namespace containing this symbol */
1231 /* Identity of the intrinsic module the symbol comes from, or
1232 INTMOD_NONE if it's not imported from a intrinsic module. */
1233 intmod_id from_intmod;
1234 /* Identity of the symbol from intrinsic modules, from enums maintained
1235 separately by each intrinsic module. Used together with from_intmod,
1236 it uniquely identifies a symbol from an intrinsic module. */
1239 /* This may be repetitive, since the typespec now has a binding
1241 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1242 /* Store a reference to the common_block, if this symbol is in one. */
1243 struct gfc_common_head *common_block;
1245 /* Link to corresponding association-list if this is an associate name. */
1246 struct gfc_association_list *assoc;
1251 /* This structure is used to keep track of symbols in common blocks. */
1252 typedef struct gfc_common_head
1255 char use_assoc, saved, threadprivate;
1256 char name[GFC_MAX_SYMBOL_LEN + 1];
1257 struct gfc_symbol *head;
1258 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1263 #define gfc_get_common_head() XCNEW (gfc_common_head)
1266 /* A list of all the alternate entry points for a procedure. */
1268 typedef struct gfc_entry_list
1270 /* The symbol for this entry point. */
1272 /* The zero-based id of this entry point. */
1274 /* The LABEL_EXPR marking this entry point. */
1276 /* The next item in the list. */
1277 struct gfc_entry_list *next;
1281 #define gfc_get_entry_list() \
1282 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1284 /* Lists of rename info for the USE statement. */
1286 typedef struct gfc_use_rename
1288 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1289 struct gfc_use_rename *next;
1291 gfc_intrinsic_op op;
1296 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1298 /* A list of all USE statements in a namespace. */
1300 typedef struct gfc_use_list
1302 const char *module_name;
1304 struct gfc_use_rename *rename;
1306 /* Next USE statement. */
1307 struct gfc_use_list *next;
1311 #define gfc_get_use_list() \
1312 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1314 /* Within a namespace, symbols are pointed to by symtree nodes that
1315 are linked together in a balanced binary tree. There can be
1316 several symtrees pointing to the same symbol node via USE
1319 typedef struct gfc_symtree
1321 BBT_HEADER (gfc_symtree);
1326 gfc_symbol *sym; /* Symbol associated with this node */
1328 gfc_common_head *common;
1329 gfc_typebound_proc *tb;
1335 /* A linked list of derived types in the namespace. */
1336 typedef struct gfc_dt_list
1338 struct gfc_symbol *derived;
1339 struct gfc_dt_list *next;
1343 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1345 /* A list of all derived types. */
1346 extern gfc_dt_list *gfc_derived_types;
1348 /* A namespace describes the contents of procedure, module, interface block
1349 or BLOCK construct. */
1350 /* ??? Anything else use these? */
1352 typedef struct gfc_namespace
1354 /* Tree containing all the symbols in this namespace. */
1355 gfc_symtree *sym_root;
1356 /* Tree containing all the user-defined operators in the namespace. */
1357 gfc_symtree *uop_root;
1358 /* Tree containing all the common blocks. */
1359 gfc_symtree *common_root;
1361 /* Tree containing type-bound procedures. */
1362 gfc_symtree *tb_sym_root;
1363 /* Type-bound user operators. */
1364 gfc_symtree *tb_uop_root;
1365 /* For derived-types, store type-bound intrinsic operators here. */
1366 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1367 /* Linked list of finalizer procedures. */
1368 struct gfc_finalizer *finalizers;
1370 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1371 int set_flag[GFC_LETTERS];
1372 /* Keeps track of the implicit types associated with the letters. */
1373 gfc_typespec default_type[GFC_LETTERS];
1374 /* Store the positions of IMPLICIT statements. */
1375 locus implicit_loc[GFC_LETTERS];
1377 /* If this is a namespace of a procedure, this points to the procedure. */
1378 struct gfc_symbol *proc_name;
1379 /* If this is the namespace of a unit which contains executable
1380 code, this points to it. */
1381 struct gfc_code *code;
1383 /* Points to the equivalences set up in this namespace. */
1384 struct gfc_equiv *equiv, *old_equiv;
1386 /* Points to the equivalence groups produced by trans_common. */
1387 struct gfc_equiv_list *equiv_lists;
1389 gfc_interface *op[GFC_INTRINSIC_OPS];
1391 /* Points to the parent namespace, i.e. the namespace of a module or
1392 procedure in which the procedure belonging to this namespace is
1393 contained. The parent namespace points to this namespace either
1394 directly via CONTAINED, or indirectly via the chain built by
1396 struct gfc_namespace *parent;
1397 /* CONTAINED points to the first contained namespace. Sibling
1398 namespaces are chained via SIBLING. */
1399 struct gfc_namespace *contained, *sibling;
1401 gfc_common_head blank_common;
1402 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1404 gfc_st_label *st_labels;
1405 /* This list holds information about all the data initializers in
1407 struct gfc_data *data;
1409 gfc_charlen *cl_list, *old_cl_list;
1411 gfc_dt_list *derived_types;
1413 int save_all, seen_save, seen_implicit_none;
1415 /* Normally we don't need to refcount namespaces. However when we read
1416 a module containing a function with multiple entry points, this
1417 will appear as several functions with the same formal namespace. */
1420 /* A list of all alternate entry points to this procedure (or NULL). */
1421 gfc_entry_list *entries;
1423 /* A list of USE statements in this namespace. */
1424 gfc_use_list *use_stmts;
1426 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1427 unsigned is_block_data:1;
1429 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1430 unsigned has_import_set:1;
1432 /* Set to 1 if resolved has been called for this namespace.
1433 Holds -1 during resolution. */
1436 /* Set to 1 if code has been generated for this namespace. */
1437 unsigned translated:1;
1439 /* Set to 1 if symbols in this namespace should be 'construct entities',
1440 i.e. for BLOCK local variables. */
1441 unsigned construct_entities:1;
1445 extern gfc_namespace *gfc_current_ns;
1446 extern gfc_namespace *gfc_global_ns_list;
1448 /* Global symbols are symbols of global scope. Currently we only use
1449 this to detect collisions already when parsing.
1450 TODO: Extend to verify procedure calls. */
1452 enum gfc_symbol_type
1454 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1455 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1458 typedef struct gfc_gsymbol
1460 BBT_HEADER(gfc_gsymbol);
1463 const char *sym_name;
1464 const char *mod_name;
1465 const char *binding_label;
1466 enum gfc_symbol_type type;
1474 extern gfc_gsymbol *gfc_gsym_root;
1476 /* Information on interfaces being built. */
1479 interface_type type;
1483 gfc_intrinsic_op op;
1487 extern gfc_interface_info current_interface;
1490 /* Array reference. */
1492 enum gfc_array_ref_dimen_type
1494 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_UNKNOWN
1497 typedef struct gfc_array_ref
1500 int dimen; /* # of components in the reference */
1502 bool in_allocate; /* For coarray checks. */
1506 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1507 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1508 *stride[GFC_MAX_DIMENSIONS];
1510 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1512 struct gfc_expr *offset;
1516 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1519 /* Component reference nodes. A variable is stored as an expression
1520 node that points to the base symbol. After that, a singly linked
1521 list of component reference nodes gives the variable's complete
1522 resolution. The array_ref component may be present and comes
1523 before the component component. */
1526 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1529 typedef struct gfc_ref
1535 struct gfc_array_ref ar;
1539 gfc_component *component;
1546 struct gfc_expr *start, *end; /* Substring */
1547 gfc_charlen *length;
1554 struct gfc_ref *next;
1558 #define gfc_get_ref() XCNEW (gfc_ref)
1561 /* Structures representing intrinsic symbols and their arguments lists. */
1562 typedef struct gfc_intrinsic_arg
1564 char name[GFC_MAX_SYMBOL_LEN + 1];
1567 unsigned optional:1, value:1;
1568 ENUM_BITFIELD (sym_intent) intent:2;
1569 gfc_actual_arglist *actual;
1571 struct gfc_intrinsic_arg *next;
1577 /* Specifies the various kinds of check functions used to verify the
1578 argument lists of intrinsic functions. fX with X an integer refer
1579 to check functions of intrinsics with X arguments. f1m is used for
1580 the MAX and MIN intrinsics which can have an arbitrary number of
1581 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1582 these have special semantics. */
1586 gfc_try (*f0)(void);
1587 gfc_try (*f1)(struct gfc_expr *);
1588 gfc_try (*f1m)(gfc_actual_arglist *);
1589 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1590 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1591 gfc_try (*f3ml)(gfc_actual_arglist *);
1592 gfc_try (*f3red)(gfc_actual_arglist *);
1593 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1595 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1596 struct gfc_expr *, struct gfc_expr *);
1600 /* Like gfc_check_f, these specify the type of the simplification
1601 function associated with an intrinsic. The fX are just like in
1602 gfc_check_f. cc is used for type conversion functions. */
1606 struct gfc_expr *(*f0)(void);
1607 struct gfc_expr *(*f1)(struct gfc_expr *);
1608 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1609 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1611 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1612 struct gfc_expr *, struct gfc_expr *);
1613 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1614 struct gfc_expr *, struct gfc_expr *,
1616 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1620 /* Again like gfc_check_f, these specify the type of the resolution
1621 function associated with an intrinsic. The fX are just like in
1622 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1626 void (*f0)(struct gfc_expr *);
1627 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1628 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1629 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1630 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1632 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1633 struct gfc_expr *, struct gfc_expr *);
1634 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1635 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1636 void (*s1)(struct gfc_code *);
1641 typedef struct gfc_intrinsic_sym
1643 const char *name, *lib_name;
1644 gfc_intrinsic_arg *formal;
1646 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1647 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1,
1652 gfc_simplify_f simplify;
1654 gfc_resolve_f resolve;
1655 struct gfc_intrinsic_sym *specific_head, *next;
1662 /* Expression nodes. The expression node types deserve explanations,
1663 since the last couple can be easily misconstrued:
1665 EXPR_OP Operator node pointing to one or two other nodes
1666 EXPR_FUNCTION Function call, symbol points to function's name
1667 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1668 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1669 which expresses structure, array and substring refs.
1670 EXPR_NULL The NULL pointer value (which also has a basic type).
1671 EXPR_SUBSTRING A substring of a constant string
1672 EXPR_STRUCTURE A structure constructor
1673 EXPR_ARRAY An array constructor.
1674 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1675 component or type-bound procedure. */
1680 #define GFC_RND_MODE GMP_RNDN
1681 #define GFC_MPC_RND_MODE MPC_RNDNN
1683 typedef splay_tree gfc_constructor_base;
1685 typedef struct gfc_expr
1689 gfc_typespec ts; /* These two refer to the overall expression */
1692 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1694 /* Nonnull for functions and structure constructors, may also used to hold the
1695 base-object for component calls. */
1696 gfc_symtree *symtree;
1702 /* is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1703 denotes a signalling not-a-number. */
1704 unsigned int is_boz : 1, is_snan : 1;
1706 /* Sometimes, when an error has been emitted, it is necessary to prevent
1707 it from recurring. */
1708 unsigned int error : 1;
1710 /* Mark an expression where a user operator has been substituted by
1711 a function call in interface.c(gfc_extend_expr). */
1712 unsigned int user_operator : 1;
1714 /* Mark an expression as being a MOLD argument of ALLOCATE. */
1715 unsigned int mold : 1;
1717 /* If an expression comes from a Hollerith constant or compile-time
1718 evaluation of a transfer statement, it may have a prescribed target-
1719 memory representation, and these cannot always be backformed from
1742 gfc_intrinsic_op op;
1744 struct gfc_expr *op1, *op2;
1750 gfc_actual_arglist *actual;
1751 const char *name; /* Points to the ultimate name of the function */
1752 gfc_intrinsic_sym *isym;
1759 gfc_actual_arglist* actual;
1761 /* Base-object, whose component was called. NULL means that it should
1762 be taken from symtree/ref. */
1763 struct gfc_expr* base_object;
1764 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1766 /* For type-bound operators, we want to call PASS procedures but already
1767 have the full arglist; mark this, so that it is not extended by the
1769 unsigned ignore_pass:1;
1771 /* Do assign-calls rather than calls, that is appropriate dependency
1784 gfc_constructor_base constructor;
1792 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1794 /* Structures for information associated with different kinds of
1795 numbers. The first set of integer parameters define all there is
1796 to know about a particular kind. The rest of the elements are
1797 computed from the first elements. */
1801 /* Values really representable by the target. */
1802 mpz_t huge, pedantic_min_int, min_int;
1804 int kind, radix, digits, bit_size, range;
1806 /* True if the C type of the given name maps to this precision.
1807 Note that more than one bit can be set. */
1808 unsigned int c_char : 1;
1809 unsigned int c_short : 1;
1810 unsigned int c_int : 1;
1811 unsigned int c_long : 1;
1812 unsigned int c_long_long : 1;
1816 extern gfc_integer_info gfc_integer_kinds[];
1823 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1824 unsigned int c_bool : 1;
1828 extern gfc_logical_info gfc_logical_kinds[];
1833 mpfr_t epsilon, huge, tiny, subnormal;
1834 int kind, radix, digits, min_exponent, max_exponent;
1835 int range, precision;
1837 /* The precision of the type as reported by GET_MODE_PRECISION. */
1840 /* True if the C type of the given name maps to this precision.
1841 Note that more than one bit can be set. */
1842 unsigned int c_float : 1;
1843 unsigned int c_double : 1;
1844 unsigned int c_long_double : 1;
1845 unsigned int c_float128 : 1;
1849 extern gfc_real_info gfc_real_kinds[];
1858 extern gfc_character_info gfc_character_kinds[];
1861 /* Equivalence structures. Equivalent lvalues are linked along the
1862 *eq pointer, equivalence sets are strung along the *next node. */
1863 typedef struct gfc_equiv
1865 struct gfc_equiv *next, *eq;
1872 #define gfc_get_equiv() XCNEW (gfc_equiv)
1874 /* Holds a single equivalence member after processing. */
1875 typedef struct gfc_equiv_info
1878 HOST_WIDE_INT offset;
1879 HOST_WIDE_INT length;
1880 struct gfc_equiv_info *next;
1883 /* Holds equivalence groups, after they have been processed. */
1884 typedef struct gfc_equiv_list
1886 gfc_equiv_info *equiv;
1887 struct gfc_equiv_list *next;
1890 /* gfc_case stores the selector list of a case statement. The *low
1891 and *high pointers can point to the same expression in the case of
1892 a single value. If *high is NULL, the selection is from *low
1893 upwards, if *low is NULL the selection is *high downwards.
1895 This structure has separate fields to allow single and double linked
1896 lists of CASEs at the same time. The singe linked list along the NEXT
1897 field is a list of cases for a single CASE label. The double linked
1898 list along the LEFT/RIGHT fields is used to detect overlap and to
1899 build a table of the cases for SELECT constructs with a CHARACTER
1902 typedef struct gfc_case
1904 /* Where we saw this case. */
1908 /* Case range values. If (low == high), it's a single value. If one of
1909 the labels is NULL, it's an unbounded case. If both are NULL, this
1910 represents the default case. */
1911 gfc_expr *low, *high;
1913 /* Only used for SELECT TYPE. */
1916 /* Next case label in the list of cases for a single CASE label. */
1917 struct gfc_case *next;
1919 /* Used for detecting overlap, and for code generation. */
1920 struct gfc_case *left, *right;
1922 /* True if this case label can never be matched. */
1927 #define gfc_get_case() XCNEW (gfc_case)
1932 gfc_expr *var, *start, *end, *step;
1936 #define gfc_get_iterator() XCNEW (gfc_iterator)
1939 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1941 typedef struct gfc_alloc
1944 struct gfc_alloc *next;
1948 #define gfc_get_alloc() XCNEW (gfc_alloc)
1953 gfc_expr *unit, *file, *status, *access, *form, *recl,
1954 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1955 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1963 gfc_expr *unit, *status, *iostat, *iomsg;
1971 gfc_expr *unit, *iostat, *iomsg;
1979 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1980 *name, *access, *sequential, *direct, *form, *formatted,
1981 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1982 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1983 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1993 gfc_expr *unit, *iostat, *iomsg, *id;
1994 gfc_st_label *err, *end, *eor;
2001 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
2002 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
2003 *sign, *extra_comma, *dt_io_kind;
2005 gfc_symbol *namelist;
2006 /* A format_label of `format_asterisk' indicates the "*" format */
2007 gfc_st_label *format_label;
2008 gfc_st_label *err, *end, *eor;
2010 locus eor_where, end_where, err_where;
2015 typedef struct gfc_forall_iterator
2017 gfc_expr *var, *start, *end, *stride;
2018 struct gfc_forall_iterator *next;
2020 gfc_forall_iterator;
2023 /* Linked list to store associations in an ASSOCIATE statement. */
2025 typedef struct gfc_association_list
2027 struct gfc_association_list *next;
2029 /* Whether this is association to a variable that can be changed; otherwise,
2030 it's association to an expression and the name may not be used as
2032 unsigned variable:1;
2034 /* True if this struct is currently only linked to from a gfc_symbol rather
2035 than as part of a real list in gfc_code->ext.block.assoc. This may
2036 happen for SELECT TYPE temporaries and must be considered
2037 for memory handling. */
2038 unsigned dangling:1;
2040 char name[GFC_MAX_SYMBOL_LEN + 1];
2041 gfc_symtree *st; /* Symtree corresponding to name. */
2046 gfc_association_list;
2047 #define gfc_get_association_list() XCNEW (gfc_association_list)
2050 /* Executable statements that fill gfc_code structures. */
2053 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
2054 EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2055 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2056 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2057 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK,
2058 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
2059 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE,
2060 EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
2061 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2062 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2063 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2064 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2065 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2066 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2067 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2068 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2069 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
2073 typedef struct gfc_code
2077 struct gfc_code *block, *next;
2080 gfc_st_label *here, *label1, *label2, *label3;
2081 gfc_symtree *symtree;
2082 gfc_expr *expr1, *expr2, *expr3;
2083 /* A name isn't sufficient to identify a subroutine, we need the actual
2084 symbol for the interface definition.
2085 const char *sub_name; */
2086 gfc_symbol *resolved_sym;
2087 gfc_intrinsic_sym *resolved_isym;
2091 gfc_actual_arglist *actual;
2092 gfc_case *case_list;
2093 gfc_iterator *iterator;
2105 gfc_association_list *assoc;
2111 gfc_filepos *filepos;
2112 gfc_inquire *inquire;
2115 gfc_forall_iterator *forall_iterator;
2116 struct gfc_code *which_construct;
2118 gfc_entry_list *entry;
2119 gfc_omp_clauses *omp_clauses;
2120 const char *omp_name;
2121 gfc_namelist *omp_namelist;
2124 ext; /* Points to additional structures required by statement */
2126 /* Cycle and break labels in constructs. */
2133 /* Storage for DATA statements. */
2134 typedef struct gfc_data_variable
2138 struct gfc_data_variable *list, *next;
2143 typedef struct gfc_data_value
2147 struct gfc_data_value *next;
2152 typedef struct gfc_data
2154 gfc_data_variable *var;
2155 gfc_data_value *value;
2158 struct gfc_data *next;
2163 /* Structure for holding compile options */
2167 gfc_source_form source_form;
2168 /* Maximum line lengths in fixed- and free-form source, respectively.
2169 When fixed_line_length or free_line_length are 0, the whole line is used,
2170 regardless of length.
2172 If the user requests a fixed_line_length <7 then gfc_init_options()
2173 emits a fatal error. */
2174 int fixed_line_length;
2175 int free_line_length;
2176 /* Maximum number of continuation lines in fixed- and free-form source,
2178 int max_continue_fixed;
2179 int max_continue_free;
2180 int max_identifier_length;
2181 int dump_parse_tree;
2185 int gfc_warn_conversion;
2186 int warn_conversion_extra;
2187 int warn_implicit_interface;
2188 int warn_implicit_procedure;
2189 int warn_line_truncation;
2190 int warn_surprising;
2193 int warn_intrinsic_shadow;
2194 int warn_intrinsics_std;
2195 int warn_character_truncation;
2196 int warn_array_temp;
2197 int warn_align_commons;
2198 int warn_unused_dummy_argument;
2201 int flag_all_intrinsics;
2202 int flag_default_double;
2203 int flag_default_integer;
2204 int flag_default_real;
2206 int flag_underscoring;
2207 int flag_second_underscore;
2208 int flag_implicit_none;
2209 int flag_max_stack_var_size;
2210 int flag_max_array_constructor;
2211 int flag_range_check;
2212 int flag_pack_derived;
2213 int flag_repack_arrays;
2214 int flag_preprocessed;
2219 int flag_allow_leading_underscore;
2221 int flag_external_blas;
2222 int blas_matmul_limit;
2223 int flag_cray_pointer;
2225 int gfc_flag_openmp;
2227 int flag_module_private;
2229 int flag_init_local_zero;
2230 int flag_init_integer;
2231 int flag_init_integer_value;
2233 int flag_init_logical;
2234 int flag_init_character;
2235 char flag_init_character_value;
2236 int flag_align_commons;
2237 int flag_whole_file;
2238 int flag_protect_parens;
2242 gfc_fcoarray coarray;
2248 int max_subrecord_length;
2252 extern gfc_option_t gfc_option;
2254 /* Constructor nodes for array and structure constructors. */
2255 typedef struct gfc_constructor
2257 gfc_constructor_base base;
2258 mpz_t offset; /* Offset within a constructor, used as
2262 gfc_iterator *iterator;
2267 gfc_component *component; /* Record the component being initialized. */
2274 typedef struct iterator_stack
2276 gfc_symtree *variable;
2278 struct iterator_stack *prev;
2281 extern iterator_stack *iter_stack;
2284 /* Used for (possibly nested) SELECT TYPE statements. */
2285 typedef struct gfc_select_type_stack
2287 gfc_symbol *selector; /* Current selector variable. */
2288 gfc_symtree *tmp; /* Current temporary variable. */
2289 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2291 gfc_select_type_stack;
2292 extern gfc_select_type_stack *select_type_stack;
2293 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2296 /* Node in the linked list used for storing finalizer procedures. */
2298 typedef struct gfc_finalizer
2300 struct gfc_finalizer* next;
2301 locus where; /* Where the FINAL declaration occurred. */
2303 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2304 symtree and later need only that. This way, we can access and call the
2305 finalizers from every context as they should be "always accessible". I
2306 don't make this a union because we need the information whether proc_sym is
2307 still referenced or not for dereferencing it on deleting a gfc_finalizer
2309 gfc_symbol* proc_sym;
2310 gfc_symtree* proc_tree;
2313 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2316 /************************ Function prototypes *************************/
2319 bool gfc_in_match_data (void);
2320 match gfc_match_char_spec (gfc_typespec *);
2323 void gfc_scanner_done_1 (void);
2324 void gfc_scanner_init_1 (void);
2326 void gfc_add_include_path (const char *, bool, bool);
2327 void gfc_add_intrinsic_modules_path (const char *);
2328 void gfc_release_include_path (void);
2329 FILE *gfc_open_included_file (const char *, bool, bool);
2330 FILE *gfc_open_intrinsic_module (const char *);
2332 int gfc_at_end (void);
2333 int gfc_at_eof (void);
2334 int gfc_at_bol (void);
2335 int gfc_at_eol (void);
2336 void gfc_advance_line (void);
2337 int gfc_check_include (void);
2338 int gfc_define_undef_line (void);
2340 int gfc_wide_is_printable (gfc_char_t);
2341 int gfc_wide_is_digit (gfc_char_t);
2342 int gfc_wide_fits_in_byte (gfc_char_t);
2343 gfc_char_t gfc_wide_tolower (gfc_char_t);
2344 gfc_char_t gfc_wide_toupper (gfc_char_t);
2345 size_t gfc_wide_strlen (const gfc_char_t *);
2346 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2347 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2348 char *gfc_widechar_to_char (const gfc_char_t *, int);
2349 gfc_char_t *gfc_char_to_widechar (const char *);
2351 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2353 void gfc_skip_comments (void);
2354 gfc_char_t gfc_next_char_literal (int);
2355 gfc_char_t gfc_next_char (void);
2356 char gfc_next_ascii_char (void);
2357 gfc_char_t gfc_peek_char (void);
2358 char gfc_peek_ascii_char (void);
2359 void gfc_error_recovery (void);
2360 void gfc_gobble_whitespace (void);
2361 gfc_try gfc_new_file (void);
2362 const char * gfc_read_orig_filename (const char *, const char **);
2364 extern gfc_source_form gfc_current_form;
2365 extern const char *gfc_source_file;
2366 extern locus gfc_current_locus;
2368 void gfc_start_source_files (void);
2369 void gfc_end_source_files (void);
2372 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2373 void gfc_free (void *);
2374 int gfc_terminal_width (void);
2375 void gfc_clear_ts (gfc_typespec *);
2376 FILE *gfc_open_file (const char *);
2377 const char *gfc_basic_typename (bt);
2378 const char *gfc_typename (gfc_typespec *);
2379 const char *gfc_op2string (gfc_intrinsic_op);
2380 const char *gfc_code2string (const mstring *, int);
2381 int gfc_string2code (const mstring *, const char *);
2382 const char *gfc_intent_string (sym_intent);
2384 void gfc_init_1 (void);
2385 void gfc_init_2 (void);
2386 void gfc_done_1 (void);
2387 void gfc_done_2 (void);
2389 int get_c_kind (const char *, CInteropKind_t *);
2392 unsigned int gfc_option_lang_mask (void);
2393 void gfc_init_options_struct (struct gcc_options *);
2394 void gfc_init_options (unsigned int,
2395 struct cl_decoded_option *);
2396 bool gfc_handle_option (size_t, const char *, int, int,
2397 const struct cl_option_handlers *);
2398 bool gfc_post_options (const char **);
2399 char *gfc_get_option_string (void);
2402 void gfc_maybe_initialize_eh (void);
2405 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2406 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2410 typedef struct gfc_error_buf
2413 size_t allocated, index;
2417 void gfc_error_init_1 (void);
2418 void gfc_buffer_error (int);
2420 const char *gfc_print_wide_char (gfc_char_t);
2422 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2423 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2424 void gfc_clear_warning (void);
2425 void gfc_warning_check (void);
2427 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2428 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2429 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2430 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2431 void gfc_clear_error (void);
2432 int gfc_error_check (void);
2433 int gfc_error_flag_test (void);
2435 notification gfc_notification_std (int);
2436 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2438 /* A general purpose syntax error. */
2439 #define gfc_syntax_error(ST) \
2440 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2442 void gfc_push_error (gfc_error_buf *);
2443 void gfc_pop_error (gfc_error_buf *);
2444 void gfc_free_error (gfc_error_buf *);
2446 void gfc_get_errors (int *, int *);
2447 void gfc_errors_to_warnings (int);
2450 void gfc_arith_init_1 (void);
2451 void gfc_arith_done_1 (void);
2452 arith gfc_check_integer_range (mpz_t p, int kind);
2453 bool gfc_check_character_range (gfc_char_t, int);
2456 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2457 int gfc_validate_kind (bt, int, bool);
2458 int gfc_get_int_kind_from_width_isofortranenv (int size);
2459 int gfc_get_real_kind_from_width_isofortranenv (int size);
2460 tree gfc_get_derived_type (gfc_symbol * derived);
2461 extern int gfc_index_integer_kind;
2462 extern int gfc_default_integer_kind;
2463 extern int gfc_max_integer_kind;
2464 extern int gfc_default_real_kind;
2465 extern int gfc_default_double_kind;
2466 extern int gfc_default_character_kind;
2467 extern int gfc_default_logical_kind;
2468 extern int gfc_default_complex_kind;
2469 extern int gfc_c_int_kind;
2470 extern int gfc_intio_kind;
2471 extern int gfc_charlen_int_kind;
2472 extern int gfc_numeric_storage_size;
2473 extern int gfc_character_storage_size;
2476 void gfc_clear_new_implicit (void);
2477 gfc_try gfc_add_new_implicit_range (int, int);
2478 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2479 void gfc_set_implicit_none (void);
2480 void gfc_check_function_type (gfc_namespace *);
2481 bool gfc_is_intrinsic_typename (const char *);
2483 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2484 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2486 void gfc_set_sym_referenced (gfc_symbol *);
2488 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2489 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2490 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2491 gfc_try gfc_add_codimension (symbol_attribute *, const char *, locus *);
2492 gfc_try gfc_add_contiguous (symbol_attribute *, const char *, locus *);
2493 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2494 gfc_try gfc_add_external (symbol_attribute *, locus *);
2495 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2496 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2497 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2498 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2499 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2500 match gfc_mod_pointee_as (gfc_array_spec *);
2501 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2502 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2503 gfc_try gfc_add_save (symbol_attribute *, save_state, const char *, locus *);
2504 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2505 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2506 gfc_try gfc_add_target (symbol_attribute *, locus *);
2507 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2508 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2509 gfc_try gfc_add_common (symbol_attribute *, locus *);
2510 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2511 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2512 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2513 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2514 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2515 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2516 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2517 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2518 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2519 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2520 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2521 gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
2522 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2523 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2525 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2526 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2527 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2528 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2529 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2530 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2531 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2532 const char *, locus *);
2533 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2534 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2535 gfc_formal_arglist *, locus *);
2536 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2538 void gfc_clear_attr (symbol_attribute *);
2539 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2540 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2542 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2543 gfc_symbol *gfc_use_derived (gfc_symbol *);
2544 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2545 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2547 gfc_st_label *gfc_get_st_label (int);
2548 void gfc_free_st_label (gfc_st_label *);
2549 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2550 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2552 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2554 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2555 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2556 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2557 void gfc_delete_symtree (gfc_symtree **, const char *);
2558 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2559 gfc_user_op *gfc_get_uop (const char *);
2560 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2561 void gfc_free_symbol (gfc_symbol *);
2562 void gfc_release_symbol (gfc_symbol *);
2563 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2564 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *);
2565 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2566 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2567 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2568 gfc_try verify_c_interop (gfc_typespec *);
2569 gfc_try verify_c_interop_param (gfc_symbol *);
2570 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2571 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2572 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2573 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2574 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2575 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2576 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2577 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2579 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2581 void gfc_undo_symbols (void);
2582 void gfc_commit_symbols (void);
2583 void gfc_commit_symbol (gfc_symbol *);
2584 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2585 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2586 void gfc_free_namespace (gfc_namespace *);
2588 void gfc_symbol_init_2 (void);
2589 void gfc_symbol_done_2 (void);
2591 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2592 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2593 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2594 void gfc_save_all (gfc_namespace *);
2596 void gfc_enforce_clean_symbol_state (void);
2597 void gfc_free_dt_list (void);
2600 gfc_gsymbol *gfc_get_gsymbol (const char *);
2601 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2603 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
2604 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2605 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
2606 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
2607 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
2609 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2610 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2611 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2613 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2615 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2616 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*);
2618 bool gfc_is_associate_pointer (gfc_symbol*);
2620 /* intrinsic.c -- true if working in an init-expr, false otherwise. */
2621 extern bool gfc_init_expr_flag;
2623 /* Given a symbol that we have decided is intrinsic, mark it as such
2624 by placing it into a special module that is otherwise impossible to
2627 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2629 void gfc_intrinsic_init_1 (void);
2630 void gfc_intrinsic_done_1 (void);
2632 char gfc_type_letter (bt);
2633 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2634 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2635 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2636 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2637 int gfc_generic_intrinsic (const char *);
2638 int gfc_specific_intrinsic (const char *);
2639 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2640 int gfc_intrinsic_actual_ok (const char *, const bool);
2641 gfc_intrinsic_sym *gfc_find_function (const char *);
2642 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2643 gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id);
2645 match gfc_intrinsic_func_interface (gfc_expr *, int);
2646 match gfc_intrinsic_sub_interface (gfc_code *, int);
2648 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2649 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2652 /* match.c -- FIXME */
2653 void gfc_free_iterator (gfc_iterator *, int);
2654 void gfc_free_forall_iterator (gfc_forall_iterator *);
2655 void gfc_free_alloc_list (gfc_alloc *);
2656 void gfc_free_namelist (gfc_namelist *);
2657 void gfc_free_equiv (gfc_equiv *);
2658 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *);
2659 void gfc_free_data (gfc_data *);
2660 void gfc_free_case_list (gfc_case *);
2662 /* matchexp.c -- FIXME too? */
2663 gfc_expr *gfc_get_parentheses (gfc_expr *);
2666 void gfc_free_omp_clauses (gfc_omp_clauses *);
2667 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2668 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2669 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2670 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2673 void gfc_free_actual_arglist (gfc_actual_arglist *);
2674 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2675 const char *gfc_extract_int (gfc_expr *, int *);
2676 bool is_subref_array (gfc_expr *);
2677 bool gfc_is_simply_contiguous (gfc_expr *, bool);
2679 gfc_expr *gfc_build_conversion (gfc_expr *);
2680 void gfc_free_ref_list (gfc_ref *);
2681 void gfc_type_convert_binary (gfc_expr *, int);
2682 int gfc_is_constant_expr (gfc_expr *);
2683 gfc_try gfc_simplify_expr (gfc_expr *, int);
2684 int gfc_has_vector_index (gfc_expr *);
2686 gfc_expr *gfc_get_expr (void);
2687 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
2688 gfc_expr *gfc_get_null_expr (locus *);
2689 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
2690 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
2691 gfc_expr *gfc_get_constant_expr (bt, int, locus *);
2692 gfc_expr *gfc_get_character_expr (int, locus *, const char *, int len);
2693 gfc_expr *gfc_get_int_expr (int, locus *, int);
2694 gfc_expr *gfc_get_logical_expr (int, locus *, bool);
2695 gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
2697 void gfc_free_expr (gfc_expr *);
2698 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2699 mpz_t *gfc_copy_shape (mpz_t *, int);
2700 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2701 gfc_expr *gfc_copy_expr (gfc_expr *);
2702 gfc_ref* gfc_copy_ref (gfc_ref*);
2704 gfc_try gfc_specification_expr (gfc_expr *);
2706 int gfc_numeric_ts (gfc_typespec *);
2707 int gfc_kind_max (gfc_expr *, gfc_expr *);
2709 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2710 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2711 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2712 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2714 bool gfc_has_default_initializer (gfc_symbol *);
2715 gfc_expr *gfc_default_initializer (gfc_typespec *);
2716 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2718 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
2720 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2721 bool (*)(gfc_expr *, gfc_symbol *, int*),
2723 void gfc_expr_set_symbols_referenced (gfc_expr *);
2724 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2725 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2726 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2728 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2730 bool gfc_is_coindexed (gfc_expr *);
2731 bool gfc_get_corank (gfc_expr *);
2732 bool gfc_has_ultimate_allocatable (gfc_expr *);
2733 bool gfc_has_ultimate_pointer (gfc_expr *);
2735 gfc_expr* gfc_build_intrinsic_call (const char*, locus, unsigned, ...);
2736 gfc_try gfc_check_vardef_context (gfc_expr*, bool, const char*);
2740 extern gfc_code new_st;
2742 void gfc_clear_new_st (void);
2743 gfc_code *gfc_get_code (void);
2744 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2745 void gfc_free_statement (gfc_code *);
2746 void gfc_free_statements (gfc_code *);
2747 void gfc_free_association_list (gfc_association_list *);
2750 gfc_try gfc_resolve_expr (gfc_expr *);
2751 void gfc_resolve (gfc_namespace *);
2752 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2753 int gfc_impure_variable (gfc_symbol *);
2754 int gfc_pure (gfc_symbol *);
2755 int gfc_elemental (gfc_symbol *);
2756 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2757 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2758 gfc_try gfc_resolve_index (gfc_expr *, int);
2759 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2760 int gfc_is_formal_arg (void);
2761 void gfc_resolve_substring_charlen (gfc_expr *);
2762 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2763 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2764 bool gfc_type_is_extensible (gfc_symbol *sym);
2768 gfc_iterator *gfc_copy_iterator (gfc_iterator *);
2770 void gfc_free_array_spec (gfc_array_spec *);
2771 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2773 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2774 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2775 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2777 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2779 void gfc_simplify_iterator_var (gfc_expr *);
2780 gfc_try gfc_expand_constructor (gfc_expr *, bool);
2781 int gfc_constant_ac (gfc_expr *);
2782 int gfc_expanded_ac (gfc_expr *);
2783 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2784 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2785 gfc_try gfc_check_constructor_type (gfc_expr *);
2786 gfc_try gfc_check_iter_variable (gfc_expr *);
2787 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2788 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2789 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2790 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2791 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2792 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2793 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2794 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2795 int gfc_is_compile_time_shape (gfc_array_spec *);
2797 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *);
2800 /* interface.c -- FIXME: some of these should be in symbol.c */
2801 void gfc_free_interface (gfc_interface *);
2802 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2803 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2804 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2806 void gfc_check_interfaces (gfc_namespace *);
2807 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2808 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2809 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2810 gfc_actual_arglist **);
2811 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2812 void gfc_free_formal_arglist (gfc_formal_arglist *);
2813 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2814 gfc_try gfc_add_interface (gfc_symbol *);
2815 gfc_interface *gfc_current_interface_head (void);
2816 void gfc_set_current_interface_head (gfc_interface *);
2817 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2818 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2819 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2820 int gfc_has_vector_subscript (gfc_expr*);
2823 extern gfc_st_label format_asterisk;
2825 void gfc_free_open (gfc_open *);
2826 gfc_try gfc_resolve_open (gfc_open *);
2827 void gfc_free_close (gfc_close *);
2828 gfc_try gfc_resolve_close (gfc_close *);
2829 void gfc_free_filepos (gfc_filepos *);
2830 gfc_try gfc_resolve_filepos (gfc_filepos *);
2831 void gfc_free_inquire (gfc_inquire *);
2832 gfc_try gfc_resolve_inquire (gfc_inquire *);
2833 void gfc_free_dt (gfc_dt *);
2834 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2835 void gfc_free_wait (gfc_wait *);
2836 gfc_try gfc_resolve_wait (gfc_wait *);
2839 void gfc_module_init_2 (void);
2840 void gfc_module_done_2 (void);
2841 void gfc_dump_module (const char *, int);
2842 bool gfc_check_access (gfc_access, gfc_access);
2843 void gfc_free_use_stmts (gfc_use_list *);
2846 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2847 symbol_attribute gfc_expr_attr (gfc_expr *);
2848 match gfc_match_rvalue (gfc_expr **);
2849 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2850 int gfc_check_digit (char, int);
2851 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
2854 void gfc_generate_code (gfc_namespace *);
2855 void gfc_generate_module_code (gfc_namespace *);
2858 typedef int (*compare_fn) (void *, void *);
2859 void gfc_insert_bbt (void *, void *, compare_fn);
2860 void gfc_delete_bbt (void *, void *, compare_fn);
2862 /* dump-parse-tree.c */
2863 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2866 gfc_try gfc_parse_file (void);
2867 void gfc_global_used (gfc_gsymbol *, locus *);
2868 gfc_namespace* gfc_build_block_ns (gfc_namespace *);
2871 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2874 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2877 void gfc_add_component_ref (gfc_expr *, const char *);
2878 gfc_expr *gfc_class_null_initializer (gfc_typespec *);
2879 gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
2880 gfc_array_spec **, bool);
2881 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
2882 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2883 const char*, bool, locus*);
2884 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2885 const char*, bool, locus*);
2886 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2887 gfc_intrinsic_op, bool,
2889 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2891 #define CLASS_DATA(sym) sym->ts.u.derived->components
2893 /* frontend-passes.c */
2895 void gfc_run_passes (gfc_namespace *);
2897 typedef int (*walk_code_fn_t) (gfc_code **, int *, void *);
2898 typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *);
2900 int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *);
2901 int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *);
2903 #endif /* GCC_GFORTRAN_H */