1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
4 Free Software Foundation, Inc.
5 Contributed by Andy Vaught
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 #ifndef GCC_GFORTRAN_H
24 #define GCC_GFORTRAN_H
26 /* It's probably insane to have this large of a header file, but it
27 seemed like everything had to be recompiled anyway when a change
28 was made to a header file, and there were ordering issues with
29 multiple header files. Besides, Microsoft's winnt.h was 250k last
30 time I looked, so by comparison this is perfectly reasonable. */
32 /* Declarations common to the front-end and library are put in
33 libgfortran/libgfortran_frontend.h */
34 #include "libgfortran.h"
38 #include "coretypes.h"
40 #include "splay-tree.h"
41 /* The following ifdefs are recommended by the autoconf documentation
42 for any code using alloca. */
44 /* AIX requires this to be the first thing in the file. */
46 #else /* not __GNUC__ */
49 #else /* do not HAVE_ALLOCA_H */
53 #ifndef alloca /* predefined by HP cc +Olibcalls */
55 #endif /* not predefined */
57 #endif /* do not HAVE_ALLOCA_H */
58 #endif /* not __GNUC__ */
60 /* Major control parameters. */
62 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
63 #define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */
64 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
65 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
67 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
70 #define free(x) Use_gfc_free_instead_of_free()
71 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
74 #define NULL ((void *) 0)
78 #define stringize(x) expand_macro(x)
79 #define expand_macro(x) # x
81 /* For the runtime library, a standard prefix is a requirement to
82 avoid cluttering the namespace with things nobody asked for. It's
83 ugly to look at and a pain to type when you add the prefix by hand,
84 so we hide it behind a macro. */
85 #define PREFIX(x) "_gfortran_" x
88 #define BLANK_COMMON_NAME "__BLNK__"
90 /* Macro to initialize an mstring structure. */
91 #define minit(s, t) { s, NULL, t }
93 /* Structure for storing strings to be matched by gfc_match_string. */
104 /*************************** Enums *****************************/
106 /* Used when matching and resolving data I/O transfer statements. */
109 { M_READ, M_WRITE, M_PRINT, M_INQUIRE }
112 /* The author remains confused to this day about the convention of
113 returning '0' for 'SUCCESS'... or was it the other way around? The
114 following enum makes things much more readable. We also start
115 values off at one instead of zero. */
118 { SUCCESS = 1, FAILURE }
121 /* This is returned by gfc_notification_std to know if, given the flags
122 that were given (-std=, -pedantic) we should issue an error, a warning
126 { SILENT, WARNING, ERROR }
129 /* Matchers return one of these three values. The difference between
130 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
131 successful, but that something non-syntactic is wrong and an error
132 has already been issued. */
135 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
139 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
142 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer
143 can take any arg with the pointer attribute as a param. */
145 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX, BT_LOGICAL, BT_CHARACTER,
146 BT_DERIVED, BT_CLASS, BT_PROCEDURE, BT_HOLLERITH, BT_VOID
150 /* Expression node types. */
152 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
153 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC
159 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
160 AS_ASSUMED_SIZE, AS_IMPLIED_SHAPE, AS_UNKNOWN
165 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
168 /* Statement label types. */
170 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
171 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
175 /* Intrinsic operators. */
177 { GFC_INTRINSIC_BEGIN = 0,
178 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
179 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
180 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
181 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
182 /* ==, /=, >, >=, <, <= */
183 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
184 INTRINSIC_LT, INTRINSIC_LE,
185 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
186 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
187 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
188 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
189 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
194 /* This macro is the number of intrinsic operators that exist.
195 Assumptions are made about the numbering of the interface_op enums. */
196 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
198 /* Arithmetic results. */
200 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
201 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT
208 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE,
209 ST_BACKSPACE, ST_BLOCK, ST_BLOCK_DATA,
210 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
211 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
212 ST_ELSEWHERE, ST_END_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA,
213 ST_ENDDO, ST_IMPLIED_ENDDO,
214 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
215 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
216 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
217 ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION,
218 ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT,
219 ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY, ST_SYNC_IMAGES,
220 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
221 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
222 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT,
223 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
224 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
225 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS,
226 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
227 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
228 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
229 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
230 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
231 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
232 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
233 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
234 ST_OMP_TASKWAIT, ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL,
235 ST_GET_FCN_CHARACTERISTICS, ST_NONE
240 /* Types of interfaces that we can have. Assignment interfaces are
241 considered to be intrinsic operators. */
244 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
245 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
249 /* Symbol flavors: these are all mutually exclusive.
250 10 elements = 4 bits. */
251 typedef enum sym_flavor
253 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
254 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
259 /* Procedure types. 7 elements = 3 bits. */
260 typedef enum procedure_type
261 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
262 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
267 typedef enum sym_intent
268 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
273 typedef enum gfc_access
274 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
278 /* Flags to keep track of where an interface came from.
279 3 elements = 2 bits. */
281 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */
282 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */
283 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement
284 with explicit interface. */
288 /* Whether a SAVE attribute was set explicitly or implicitly. */
289 typedef enum save_state
290 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
294 /* Strings for all symbol attributes. We use these for dumping the
295 parse tree, in error messages, and also when reading and writing
296 modules. In symbol.c. */
297 extern const mstring flavors[];
298 extern const mstring procedures[];
299 extern const mstring intents[];
300 extern const mstring access_types[];
301 extern const mstring ifsrc_types[];
302 extern const mstring save_status[];
304 /* Enumeration of all the generic intrinsic functions. Used by the
305 backend for identification of a function. */
309 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
310 the backend (e.g. KIND). */
345 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
346 GFC_ISYM_COMPILER_OPTIONS,
347 GFC_ISYM_COMPILER_VERSION,
358 GFC_ISYM_DATE_AND_TIME,
362 GFC_ISYM_DOT_PRODUCT,
371 GFC_ISYM_ERFC_SCALED,
373 GFC_ISYM_EXECUTE_COMMAND_LINE,
377 GFC_ISYM_EXTENDS_TYPE_OF,
394 GFC_ISYM_GET_COMMAND,
395 GFC_ISYM_GET_COMMAND_ARGUMENT,
398 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
419 GFC_ISYM_IMAGE_INDEX,
428 GFC_ISYM_IS_IOSTAT_END,
429 GFC_ISYM_IS_IOSTAT_EOR,
464 GFC_ISYM_MAXEXPONENT,
472 GFC_ISYM_MINEXPONENT,
497 GFC_ISYM_RANDOM_NUMBER,
498 GFC_ISYM_RANDOM_SEED,
506 GFC_ISYM_SAME_TYPE_AS,
512 GFC_ISYM_SET_EXPONENT,
531 GFC_ISYM_STORAGE_SIZE,
536 GFC_ISYM_SYSTEM_CLOCK,
560 typedef enum gfc_isym_id gfc_isym_id;
565 GFC_INIT_REAL_OFF = 0,
570 GFC_INIT_REAL_NEG_INF
576 GFC_INIT_LOGICAL_OFF = 0,
577 GFC_INIT_LOGICAL_FALSE,
578 GFC_INIT_LOGICAL_TRUE
584 GFC_INIT_CHARACTER_OFF = 0,
585 GFC_INIT_CHARACTER_ON
587 init_local_character;
591 GFC_INIT_INTEGER_OFF = 0,
598 GFC_FCOARRAY_NONE = 0,
612 /************************* Structures *****************************/
614 /* Used for keeping things in balanced binary trees. */
615 #define BBT_HEADER(self) int priority; struct self *left, *right
617 #define NAMED_INTCST(a,b,c,d) a,
618 #define NAMED_KINDARRAY(a,b,c,d) a,
619 #define NAMED_FUNCTION(a,b,c,d) a,
622 ISOFORTRANENV_INVALID = -1,
623 #include "iso-fortran-env.def"
624 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
626 iso_fortran_env_symbol;
628 #undef NAMED_KINDARRAY
629 #undef NAMED_FUNCTION
631 #define NAMED_INTCST(a,b,c,d) a,
632 #define NAMED_REALCST(a,b,c) a,
633 #define NAMED_CMPXCST(a,b,c) a,
634 #define NAMED_LOGCST(a,b,c) a,
635 #define NAMED_CHARKNDCST(a,b,c) a,
636 #define NAMED_CHARCST(a,b,c) a,
637 #define DERIVED_TYPE(a,b,c) a,
638 #define PROCEDURE(a,b) a,
639 #define NAMED_FUNCTION(a,b,c,d) a,
642 ISOCBINDING_INVALID = -1,
643 #include "iso-c-binding.def"
645 ISOCBINDING_NUMBER = ISOCBINDING_LAST
647 iso_c_binding_symbol;
652 #undef NAMED_CHARKNDCST
656 #undef NAMED_FUNCTION
660 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
666 char name[GFC_MAX_SYMBOL_LEN + 1];
667 int value; /* Used for both integer and character values. */
672 /* Array of structs, where the structs represent the C interop kinds.
673 The list will be implemented based on a hash of the kind name since
674 these could be accessed multiple times.
675 Declared in trans-types.c as a global, since it's in that file
676 that the list is initialized. */
677 extern CInteropKind_t c_interop_kinds_table[];
680 /* Structure and list of supported extension attributes. */
683 EXT_ATTR_DLLIMPORT = 0,
688 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
696 const char *middle_end_name;
700 extern const ext_attr_t ext_attr_list[];
702 /* Symbol attribute structure. */
705 /* Variable attributes. */
706 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1,
707 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
708 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
709 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1,
712 /* For CLASS containers, the pointer attribute is sometimes set internally
713 even though it was not directly specified. In this case, keep the
714 "real" (original) value here. */
715 unsigned class_pointer:1;
717 ENUM_BITFIELD (save_state) save:2;
719 unsigned data:1, /* Symbol is named in a DATA statement. */
720 is_protected:1, /* Symbol has been marked as protected. */
721 use_assoc:1, /* Symbol has been use-associated. */
722 use_only:1, /* Symbol has been use-associated, with ONLY. */
723 use_rename:1, /* Symbol has been use-associated and renamed. */
724 imported:1, /* Symbol has been associated by IMPORT. */
725 host_assoc:1; /* Symbol has been host associated. */
727 unsigned in_namelist:1, in_common:1, in_equivalence:1;
728 unsigned function:1, subroutine:1, procedure:1;
729 unsigned generic:1, generic_copy:1;
730 unsigned implicit_type:1; /* Type defined via implicit rules. */
731 unsigned untyped:1; /* No implicit type could be found. */
733 unsigned is_bind_c:1; /* say if is bound to C. */
734 unsigned extension:8; /* extension level of a derived type. */
735 unsigned is_class:1; /* is a CLASS container. */
736 unsigned class_ok:1; /* is a CLASS object with correct attributes. */
737 unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */
738 unsigned vtype:1; /* is a derived type of a vtab. */
740 /* These flags are both in the typespec and attribute. The attribute
741 list is what gets read from/written to a module file. The typespec
742 is created from a decl being processed. */
743 unsigned is_c_interop:1; /* It's c interoperable. */
744 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
746 /* Function/subroutine attributes */
747 unsigned sequence:1, elemental:1, pure:1, recursive:1;
748 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
750 /* This is set if the subroutine doesn't return. Currently, this
751 is only possible for intrinsic subroutines. */
754 /* Set if this procedure is an alternate entry point. These procedures
755 don't have any code associated, and the backend will turn them into
756 thunks to the master function. */
759 /* Set if this is the master function for a procedure with multiple
761 unsigned entry_master:1;
763 /* Set if this is the master function for a function with multiple
764 entry points where characteristics of the entry points differ. */
765 unsigned mixed_entry_master:1;
767 /* Set if a function must always be referenced by an explicit interface. */
768 unsigned always_explicit:1;
770 /* Set if the symbol has been referenced in an expression. No further
771 modification of type or type parameters is permitted. */
772 unsigned referenced:1;
774 /* Set if this is the symbol for the main program. */
775 unsigned is_main_program:1;
777 /* Mutually exclusive multibit attributes. */
778 ENUM_BITFIELD (gfc_access) access:2;
779 ENUM_BITFIELD (sym_intent) intent:2;
780 ENUM_BITFIELD (sym_flavor) flavor:4;
781 ENUM_BITFIELD (ifsrc) if_source:2;
783 ENUM_BITFIELD (procedure_type) proc:3;
785 /* Special attributes for Cray pointers, pointees. */
786 unsigned cray_pointer:1, cray_pointee:1;
788 /* The symbol is a derived type with allocatable components, pointer
789 components or private components, procedure pointer components,
790 possibly nested. zero_comp is true if the derived type has no
792 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
793 private_comp:1, zero_comp:1, coarray_comp:1;
795 /* This is a temporary selector for SELECT TYPE. */
796 unsigned select_type_temporary:1;
798 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
799 unsigned ext_attr:EXT_ATTR_NUM;
801 /* The namespace where the attribute has been set. */
802 struct gfc_namespace *volatile_ns, *asynchronous_ns;
807 /* We need to store source lines as sequences of multibyte source
808 characters. We define here a type wide enough to hold any multibyte
809 source character, just like libcpp does. A 32-bit type is enough. */
811 #if HOST_BITS_PER_INT >= 32
812 typedef unsigned int gfc_char_t;
813 #elif HOST_BITS_PER_LONG >= 32
814 typedef unsigned long gfc_char_t;
815 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
816 typedef unsigned long long gfc_char_t;
818 # error "Cannot find an integer type with at least 32 bits"
822 /* The following three structures are used to identify a location in
825 gfc_file is used to maintain a tree of the source files and how
826 they include each other
828 gfc_linebuf holds a single line of source code and information
829 which file it resides in
831 locus point to the sourceline and the character in the source
835 typedef struct gfc_file
837 struct gfc_file *next, *up;
838 int inclusion_line, line;
842 typedef struct gfc_linebuf
844 source_location location;
845 struct gfc_file *file;
846 struct gfc_linebuf *next;
854 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
856 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
864 /* In order for the "gfc" format checking to work correctly, you must
865 have declared a typedef locus first. */
866 #if GCC_VERSION >= 4001
867 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
869 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
873 /* Suppress error messages or re-enable them. */
875 void gfc_push_suppress_errors (void);
876 void gfc_pop_suppress_errors (void);
879 /* Character length structures hold the expression that gives the
880 length of a character variable. We avoid putting these into
881 gfc_typespec because doing so prevents us from doing structure
882 copies and forces us to deallocate any typespecs we create, as well
883 as structures that contain typespecs. They also can have multiple
884 character typespecs pointing to them.
886 These structures form a singly linked list within the current
887 namespace and are deallocated with the namespace. It is possible to
888 end up with gfc_charlen structures that have nothing pointing to them. */
890 typedef struct gfc_charlen
892 struct gfc_expr *length;
893 struct gfc_charlen *next;
894 bool length_from_typespec; /* Length from explicit array ctor typespec? */
896 tree passed_length; /* Length argument explicitelly passed. */
902 #define gfc_get_charlen() XCNEW (gfc_charlen)
904 /* Type specification structure. */
912 struct gfc_symbol *derived; /* For derived types only. */
913 gfc_charlen *cl; /* For character types only. */
914 int pad; /* For hollerith types only. */
918 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
925 /* Array specification. */
928 int rank; /* A rank of zero means that a variable is a scalar. */
930 array_type type, cotype;
931 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
933 /* These two fields are used with the Cray Pointer extension. */
934 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
935 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
936 AS_EXPLICIT, but we want to remember that we
942 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
945 /* Components of derived types. */
946 typedef struct gfc_component
951 symbol_attribute attr;
956 struct gfc_expr *initializer;
957 struct gfc_component *next;
959 /* Needed for procedure pointer components. */
960 struct gfc_formal_arglist *formal;
961 struct gfc_namespace *formal_ns;
962 struct gfc_typebound_proc *tb;
966 #define gfc_get_component() XCNEW (gfc_component)
968 /* Formal argument lists are lists of symbols. */
969 typedef struct gfc_formal_arglist
971 /* Symbol representing the argument at this position in the arglist. */
972 struct gfc_symbol *sym;
973 /* Points to the next formal argument. */
974 struct gfc_formal_arglist *next;
978 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
981 /* The gfc_actual_arglist structure is for actual arguments. */
982 typedef struct gfc_actual_arglist
985 /* Alternate return label when the expr member is null. */
986 struct gfc_st_label *label;
988 /* This is set to the type of an eventual omitted optional
989 argument. This is used to determine if a hidden string length
990 argument has to be added to a function call. */
993 struct gfc_expr *expr;
994 struct gfc_actual_arglist *next;
998 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
1001 /* Because a symbol can belong to multiple namelists, they must be
1002 linked externally to the symbol itself. */
1003 typedef struct gfc_namelist
1005 struct gfc_symbol *sym;
1006 struct gfc_namelist *next;
1010 #define gfc_get_namelist() XCNEW (gfc_namelist)
1015 OMP_LIST_FIRSTPRIVATE,
1016 OMP_LIST_LASTPRIVATE,
1017 OMP_LIST_COPYPRIVATE,
1021 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
1033 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
1037 /* Because a symbol can belong to multiple namelists, they must be
1038 linked externally to the symbol itself. */
1040 enum gfc_omp_sched_kind
1050 enum gfc_omp_default_sharing
1052 OMP_DEFAULT_UNKNOWN,
1054 OMP_DEFAULT_PRIVATE,
1056 OMP_DEFAULT_FIRSTPRIVATE
1059 typedef struct gfc_omp_clauses
1061 struct gfc_expr *if_expr;
1062 struct gfc_expr *num_threads;
1063 gfc_namelist *lists[OMP_LIST_NUM];
1064 enum gfc_omp_sched_kind sched_kind;
1065 struct gfc_expr *chunk_size;
1066 enum gfc_omp_default_sharing default_sharing;
1068 bool nowait, ordered, untied;
1072 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1075 /* The gfc_st_label structure is a BBT attached to a namespace that
1076 records the usage of statement labels within that space. */
1078 typedef struct gfc_st_label
1080 BBT_HEADER(gfc_st_label);
1084 gfc_sl_type defined, referenced;
1086 struct gfc_expr *format;
1095 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1096 typedef struct gfc_interface
1098 struct gfc_symbol *sym;
1100 struct gfc_interface *next;
1104 #define gfc_get_interface() XCNEW (gfc_interface)
1106 /* User operator nodes. These are like stripped down symbols. */
1112 struct gfc_namespace *ns;
1118 /* A list of specific bindings that are associated with a generic spec. */
1119 typedef struct gfc_tbp_generic
1121 /* The parser sets specific_st, upon resolution we look for the corresponding
1122 gfc_typebound_proc and set specific for further use. */
1123 struct gfc_symtree* specific_st;
1124 struct gfc_typebound_proc* specific;
1126 struct gfc_tbp_generic* next;
1130 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1133 /* Data needed for type-bound procedures. */
1134 typedef struct gfc_typebound_proc
1136 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1140 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1141 gfc_tbp_generic* generic;
1146 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1148 /* The overridden type-bound proc (or GENERIC with this name in the
1149 parent-type) or NULL if non. */
1150 struct gfc_typebound_proc* overridden;
1152 /* Once resolved, we use the position of pass_arg in the formal arglist of
1153 the binding-target procedure to identify it. The first argument has
1154 number 1 here, the second 2, and so on. */
1155 unsigned pass_arg_num;
1157 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1158 unsigned non_overridable:1;
1159 unsigned deferred:1;
1160 unsigned is_generic:1;
1161 unsigned function:1, subroutine:1;
1162 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1168 /* Symbol nodes. These are important things. They are what the
1169 standard refers to as "entities". The possibly multiple names that
1170 refer to the same entity are accomplished by a binary tree of
1171 symtree structures that is balanced by the red-black method-- more
1172 than one symtree node can point to any given symbol. */
1174 typedef struct gfc_symbol
1176 const char *name; /* Primary name, before renaming */
1177 const char *module; /* Module this symbol came from */
1181 symbol_attribute attr;
1183 /* The formal member points to the formal argument list if the
1184 symbol is a function or subroutine name. If the symbol is a
1185 generic name, the generic member points to the list of
1188 gfc_interface *generic;
1189 gfc_access component_access;
1191 gfc_formal_arglist *formal;
1192 struct gfc_namespace *formal_ns;
1193 struct gfc_namespace *f2k_derived;
1195 struct gfc_expr *value; /* Parameter/Initializer value */
1197 struct gfc_symbol *result; /* function result symbol */
1198 gfc_component *components; /* Derived type components */
1200 /* Defined only for Cray pointees; points to their pointer. */
1201 struct gfc_symbol *cp_pointer;
1203 int entry_id; /* Used in resolve.c for entries. */
1205 /* CLASS hashed name for declared and dynamic types in the class. */
1208 struct gfc_symbol *common_next; /* Links for COMMON syms */
1210 /* This is in fact a gfc_common_head but it is only used for pointer
1211 comparisons to check if symbols are in the same common block. */
1212 struct gfc_common_head* common_head;
1214 /* Make sure setup code for dummy arguments is generated in the correct
1218 gfc_namelist *namelist, *namelist_tail;
1220 /* Change management fields. Symbols that might be modified by the
1221 current statement have the mark member nonzero and are kept in a
1222 singly linked list through the tlink field. Of these symbols,
1223 symbols with old_symbol equal to NULL are symbols created within
1224 the current statement. Otherwise, old_symbol points to a copy of
1227 struct gfc_symbol *old_symbol, *tlink;
1228 unsigned mark:1, gfc_new:1;
1229 /* Nonzero if all equivalences associated with this symbol have been
1231 unsigned equiv_built:1;
1232 /* Set if this variable is used as an index name in a FORALL. */
1233 unsigned forall_index:1;
1235 struct gfc_namespace *ns; /* namespace containing this symbol */
1239 /* Identity of the intrinsic module the symbol comes from, or
1240 INTMOD_NONE if it's not imported from a intrinsic module. */
1241 intmod_id from_intmod;
1242 /* Identity of the symbol from intrinsic modules, from enums maintained
1243 separately by each intrinsic module. Used together with from_intmod,
1244 it uniquely identifies a symbol from an intrinsic module. */
1247 /* This may be repetitive, since the typespec now has a binding
1249 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1250 /* Store a reference to the common_block, if this symbol is in one. */
1251 struct gfc_common_head *common_block;
1253 /* Link to corresponding association-list if this is an associate name. */
1254 struct gfc_association_list *assoc;
1259 /* This structure is used to keep track of symbols in common blocks. */
1260 typedef struct gfc_common_head
1263 char use_assoc, saved, threadprivate;
1264 char name[GFC_MAX_SYMBOL_LEN + 1];
1265 struct gfc_symbol *head;
1266 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1271 #define gfc_get_common_head() XCNEW (gfc_common_head)
1274 /* A list of all the alternate entry points for a procedure. */
1276 typedef struct gfc_entry_list
1278 /* The symbol for this entry point. */
1280 /* The zero-based id of this entry point. */
1282 /* The LABEL_EXPR marking this entry point. */
1284 /* The next item in the list. */
1285 struct gfc_entry_list *next;
1289 #define gfc_get_entry_list() \
1290 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1292 /* Lists of rename info for the USE statement. */
1294 typedef struct gfc_use_rename
1296 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1297 struct gfc_use_rename *next;
1299 gfc_intrinsic_op op;
1304 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1306 /* A list of all USE statements in a namespace. */
1308 typedef struct gfc_use_list
1310 const char *module_name;
1312 struct gfc_use_rename *rename;
1314 /* Next USE statement. */
1315 struct gfc_use_list *next;
1319 #define gfc_get_use_list() \
1320 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1322 /* Within a namespace, symbols are pointed to by symtree nodes that
1323 are linked together in a balanced binary tree. There can be
1324 several symtrees pointing to the same symbol node via USE
1327 typedef struct gfc_symtree
1329 BBT_HEADER (gfc_symtree);
1334 gfc_symbol *sym; /* Symbol associated with this node */
1336 gfc_common_head *common;
1337 gfc_typebound_proc *tb;
1343 /* A linked list of derived types in the namespace. */
1344 typedef struct gfc_dt_list
1346 struct gfc_symbol *derived;
1347 struct gfc_dt_list *next;
1351 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1353 /* A list of all derived types. */
1354 extern gfc_dt_list *gfc_derived_types;
1356 /* A namespace describes the contents of procedure, module, interface block
1357 or BLOCK construct. */
1358 /* ??? Anything else use these? */
1360 typedef struct gfc_namespace
1362 /* Tree containing all the symbols in this namespace. */
1363 gfc_symtree *sym_root;
1364 /* Tree containing all the user-defined operators in the namespace. */
1365 gfc_symtree *uop_root;
1366 /* Tree containing all the common blocks. */
1367 gfc_symtree *common_root;
1369 /* Tree containing type-bound procedures. */
1370 gfc_symtree *tb_sym_root;
1371 /* Type-bound user operators. */
1372 gfc_symtree *tb_uop_root;
1373 /* For derived-types, store type-bound intrinsic operators here. */
1374 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1375 /* Linked list of finalizer procedures. */
1376 struct gfc_finalizer *finalizers;
1378 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1379 int set_flag[GFC_LETTERS];
1380 /* Keeps track of the implicit types associated with the letters. */
1381 gfc_typespec default_type[GFC_LETTERS];
1382 /* Store the positions of IMPLICIT statements. */
1383 locus implicit_loc[GFC_LETTERS];
1385 /* If this is a namespace of a procedure, this points to the procedure. */
1386 struct gfc_symbol *proc_name;
1387 /* If this is the namespace of a unit which contains executable
1388 code, this points to it. */
1389 struct gfc_code *code;
1391 /* Points to the equivalences set up in this namespace. */
1392 struct gfc_equiv *equiv, *old_equiv;
1394 /* Points to the equivalence groups produced by trans_common. */
1395 struct gfc_equiv_list *equiv_lists;
1397 gfc_interface *op[GFC_INTRINSIC_OPS];
1399 /* Points to the parent namespace, i.e. the namespace of a module or
1400 procedure in which the procedure belonging to this namespace is
1401 contained. The parent namespace points to this namespace either
1402 directly via CONTAINED, or indirectly via the chain built by
1404 struct gfc_namespace *parent;
1405 /* CONTAINED points to the first contained namespace. Sibling
1406 namespaces are chained via SIBLING. */
1407 struct gfc_namespace *contained, *sibling;
1409 gfc_common_head blank_common;
1410 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1412 gfc_st_label *st_labels;
1413 /* This list holds information about all the data initializers in
1415 struct gfc_data *data;
1417 gfc_charlen *cl_list, *old_cl_list;
1419 gfc_dt_list *derived_types;
1421 int save_all, seen_save, seen_implicit_none;
1423 /* Normally we don't need to refcount namespaces. However when we read
1424 a module containing a function with multiple entry points, this
1425 will appear as several functions with the same formal namespace. */
1428 /* A list of all alternate entry points to this procedure (or NULL). */
1429 gfc_entry_list *entries;
1431 /* A list of USE statements in this namespace. */
1432 gfc_use_list *use_stmts;
1434 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1435 unsigned is_block_data:1;
1437 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1438 unsigned has_import_set:1;
1440 /* Set to 1 if resolved has been called for this namespace.
1441 Holds -1 during resolution. */
1444 /* Set to 1 if code has been generated for this namespace. */
1445 unsigned translated:1;
1447 /* Set to 1 if symbols in this namespace should be 'construct entities',
1448 i.e. for BLOCK local variables. */
1449 unsigned construct_entities:1;
1453 extern gfc_namespace *gfc_current_ns;
1454 extern gfc_namespace *gfc_global_ns_list;
1456 /* Global symbols are symbols of global scope. Currently we only use
1457 this to detect collisions already when parsing.
1458 TODO: Extend to verify procedure calls. */
1460 enum gfc_symbol_type
1462 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1463 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1466 typedef struct gfc_gsymbol
1468 BBT_HEADER(gfc_gsymbol);
1471 const char *sym_name;
1472 const char *mod_name;
1473 const char *binding_label;
1474 enum gfc_symbol_type type;
1482 extern gfc_gsymbol *gfc_gsym_root;
1484 /* Information on interfaces being built. */
1487 interface_type type;
1491 gfc_intrinsic_op op;
1495 extern gfc_interface_info current_interface;
1498 /* Array reference. */
1500 enum gfc_array_ref_dimen_type
1502 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_UNKNOWN
1505 typedef struct gfc_array_ref
1508 int dimen; /* # of components in the reference */
1510 bool in_allocate; /* For coarray checks. */
1514 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1515 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1516 *stride[GFC_MAX_DIMENSIONS];
1518 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1520 struct gfc_expr *offset;
1524 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1527 /* Component reference nodes. A variable is stored as an expression
1528 node that points to the base symbol. After that, a singly linked
1529 list of component reference nodes gives the variable's complete
1530 resolution. The array_ref component may be present and comes
1531 before the component component. */
1534 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1537 typedef struct gfc_ref
1543 struct gfc_array_ref ar;
1547 gfc_component *component;
1554 struct gfc_expr *start, *end; /* Substring */
1555 gfc_charlen *length;
1562 struct gfc_ref *next;
1566 #define gfc_get_ref() XCNEW (gfc_ref)
1569 /* Structures representing intrinsic symbols and their arguments lists. */
1570 typedef struct gfc_intrinsic_arg
1572 char name[GFC_MAX_SYMBOL_LEN + 1];
1575 unsigned optional:1, value:1;
1576 ENUM_BITFIELD (sym_intent) intent:2;
1577 gfc_actual_arglist *actual;
1579 struct gfc_intrinsic_arg *next;
1585 /* Specifies the various kinds of check functions used to verify the
1586 argument lists of intrinsic functions. fX with X an integer refer
1587 to check functions of intrinsics with X arguments. f1m is used for
1588 the MAX and MIN intrinsics which can have an arbitrary number of
1589 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1590 these have special semantics. */
1594 gfc_try (*f0)(void);
1595 gfc_try (*f1)(struct gfc_expr *);
1596 gfc_try (*f1m)(gfc_actual_arglist *);
1597 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1598 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1599 gfc_try (*f3ml)(gfc_actual_arglist *);
1600 gfc_try (*f3red)(gfc_actual_arglist *);
1601 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1603 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1604 struct gfc_expr *, struct gfc_expr *);
1608 /* Like gfc_check_f, these specify the type of the simplification
1609 function associated with an intrinsic. The fX are just like in
1610 gfc_check_f. cc is used for type conversion functions. */
1614 struct gfc_expr *(*f0)(void);
1615 struct gfc_expr *(*f1)(struct gfc_expr *);
1616 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1617 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1619 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1620 struct gfc_expr *, struct gfc_expr *);
1621 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1622 struct gfc_expr *, struct gfc_expr *,
1624 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1628 /* Again like gfc_check_f, these specify the type of the resolution
1629 function associated with an intrinsic. The fX are just like in
1630 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1634 void (*f0)(struct gfc_expr *);
1635 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1636 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1637 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1638 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1640 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1641 struct gfc_expr *, struct gfc_expr *);
1642 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1643 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1644 void (*s1)(struct gfc_code *);
1649 typedef struct gfc_intrinsic_sym
1651 const char *name, *lib_name;
1652 gfc_intrinsic_arg *formal;
1654 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1655 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1,
1660 gfc_simplify_f simplify;
1662 gfc_resolve_f resolve;
1663 struct gfc_intrinsic_sym *specific_head, *next;
1670 /* Expression nodes. The expression node types deserve explanations,
1671 since the last couple can be easily misconstrued:
1673 EXPR_OP Operator node pointing to one or two other nodes
1674 EXPR_FUNCTION Function call, symbol points to function's name
1675 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1676 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1677 which expresses structure, array and substring refs.
1678 EXPR_NULL The NULL pointer value (which also has a basic type).
1679 EXPR_SUBSTRING A substring of a constant string
1680 EXPR_STRUCTURE A structure constructor
1681 EXPR_ARRAY An array constructor.
1682 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1683 component or type-bound procedure. */
1688 #define GFC_RND_MODE GMP_RNDN
1689 #define GFC_MPC_RND_MODE MPC_RNDNN
1691 typedef splay_tree gfc_constructor_base;
1693 typedef struct gfc_expr
1697 gfc_typespec ts; /* These two refer to the overall expression */
1700 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1702 /* Nonnull for functions and structure constructors, may also used to hold the
1703 base-object for component calls. */
1704 gfc_symtree *symtree;
1710 /* is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1711 denotes a signalling not-a-number. */
1712 unsigned int is_boz : 1, is_snan : 1;
1714 /* Sometimes, when an error has been emitted, it is necessary to prevent
1715 it from recurring. */
1716 unsigned int error : 1;
1718 /* Mark an expression where a user operator has been substituted by
1719 a function call in interface.c(gfc_extend_expr). */
1720 unsigned int user_operator : 1;
1722 /* Mark an expression as being a MOLD argument of ALLOCATE. */
1723 unsigned int mold : 1;
1725 /* If an expression comes from a Hollerith constant or compile-time
1726 evaluation of a transfer statement, it may have a prescribed target-
1727 memory representation, and these cannot always be backformed from
1750 gfc_intrinsic_op op;
1752 struct gfc_expr *op1, *op2;
1758 gfc_actual_arglist *actual;
1759 const char *name; /* Points to the ultimate name of the function */
1760 gfc_intrinsic_sym *isym;
1767 gfc_actual_arglist* actual;
1769 /* Base-object, whose component was called. NULL means that it should
1770 be taken from symtree/ref. */
1771 struct gfc_expr* base_object;
1772 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1774 /* For type-bound operators, we want to call PASS procedures but already
1775 have the full arglist; mark this, so that it is not extended by the
1777 unsigned ignore_pass:1;
1779 /* Do assign-calls rather than calls, that is appropriate dependency
1792 gfc_constructor_base constructor;
1800 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1802 /* Structures for information associated with different kinds of
1803 numbers. The first set of integer parameters define all there is
1804 to know about a particular kind. The rest of the elements are
1805 computed from the first elements. */
1809 /* Values really representable by the target. */
1810 mpz_t huge, pedantic_min_int, min_int;
1812 int kind, radix, digits, bit_size, range;
1814 /* True if the C type of the given name maps to this precision.
1815 Note that more than one bit can be set. */
1816 unsigned int c_char : 1;
1817 unsigned int c_short : 1;
1818 unsigned int c_int : 1;
1819 unsigned int c_long : 1;
1820 unsigned int c_long_long : 1;
1824 extern gfc_integer_info gfc_integer_kinds[];
1831 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1832 unsigned int c_bool : 1;
1836 extern gfc_logical_info gfc_logical_kinds[];
1841 mpfr_t epsilon, huge, tiny, subnormal;
1842 int kind, radix, digits, min_exponent, max_exponent;
1843 int range, precision;
1845 /* The precision of the type as reported by GET_MODE_PRECISION. */
1848 /* True if the C type of the given name maps to this precision.
1849 Note that more than one bit can be set. */
1850 unsigned int c_float : 1;
1851 unsigned int c_double : 1;
1852 unsigned int c_long_double : 1;
1853 unsigned int c_float128 : 1;
1857 extern gfc_real_info gfc_real_kinds[];
1866 extern gfc_character_info gfc_character_kinds[];
1869 /* Equivalence structures. Equivalent lvalues are linked along the
1870 *eq pointer, equivalence sets are strung along the *next node. */
1871 typedef struct gfc_equiv
1873 struct gfc_equiv *next, *eq;
1880 #define gfc_get_equiv() XCNEW (gfc_equiv)
1882 /* Holds a single equivalence member after processing. */
1883 typedef struct gfc_equiv_info
1886 HOST_WIDE_INT offset;
1887 HOST_WIDE_INT length;
1888 struct gfc_equiv_info *next;
1891 /* Holds equivalence groups, after they have been processed. */
1892 typedef struct gfc_equiv_list
1894 gfc_equiv_info *equiv;
1895 struct gfc_equiv_list *next;
1898 /* gfc_case stores the selector list of a case statement. The *low
1899 and *high pointers can point to the same expression in the case of
1900 a single value. If *high is NULL, the selection is from *low
1901 upwards, if *low is NULL the selection is *high downwards.
1903 This structure has separate fields to allow single and double linked
1904 lists of CASEs at the same time. The singe linked list along the NEXT
1905 field is a list of cases for a single CASE label. The double linked
1906 list along the LEFT/RIGHT fields is used to detect overlap and to
1907 build a table of the cases for SELECT constructs with a CHARACTER
1910 typedef struct gfc_case
1912 /* Where we saw this case. */
1916 /* Case range values. If (low == high), it's a single value. If one of
1917 the labels is NULL, it's an unbounded case. If both are NULL, this
1918 represents the default case. */
1919 gfc_expr *low, *high;
1921 /* Only used for SELECT TYPE. */
1924 /* Next case label in the list of cases for a single CASE label. */
1925 struct gfc_case *next;
1927 /* Used for detecting overlap, and for code generation. */
1928 struct gfc_case *left, *right;
1930 /* True if this case label can never be matched. */
1935 #define gfc_get_case() XCNEW (gfc_case)
1940 gfc_expr *var, *start, *end, *step;
1944 #define gfc_get_iterator() XCNEW (gfc_iterator)
1947 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1949 typedef struct gfc_alloc
1952 struct gfc_alloc *next;
1956 #define gfc_get_alloc() XCNEW (gfc_alloc)
1961 gfc_expr *unit, *file, *status, *access, *form, *recl,
1962 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1963 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1971 gfc_expr *unit, *status, *iostat, *iomsg;
1979 gfc_expr *unit, *iostat, *iomsg;
1987 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1988 *name, *access, *sequential, *direct, *form, *formatted,
1989 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1990 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1991 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
2001 gfc_expr *unit, *iostat, *iomsg, *id;
2002 gfc_st_label *err, *end, *eor;
2009 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
2010 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
2011 *sign, *extra_comma, *dt_io_kind;
2013 gfc_symbol *namelist;
2014 /* A format_label of `format_asterisk' indicates the "*" format */
2015 gfc_st_label *format_label;
2016 gfc_st_label *err, *end, *eor;
2018 locus eor_where, end_where, err_where;
2023 typedef struct gfc_forall_iterator
2025 gfc_expr *var, *start, *end, *stride;
2026 struct gfc_forall_iterator *next;
2028 gfc_forall_iterator;
2031 /* Linked list to store associations in an ASSOCIATE statement. */
2033 typedef struct gfc_association_list
2035 struct gfc_association_list *next;
2037 /* Whether this is association to a variable that can be changed; otherwise,
2038 it's association to an expression and the name may not be used as
2040 unsigned variable:1;
2042 /* True if this struct is currently only linked to from a gfc_symbol rather
2043 than as part of a real list in gfc_code->ext.block.assoc. This may
2044 happen for SELECT TYPE temporaries and must be considered
2045 for memory handling. */
2046 unsigned dangling:1;
2048 char name[GFC_MAX_SYMBOL_LEN + 1];
2049 gfc_symtree *st; /* Symtree corresponding to name. */
2054 gfc_association_list;
2055 #define gfc_get_association_list() XCNEW (gfc_association_list)
2058 /* Executable statements that fill gfc_code structures. */
2061 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
2062 EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2063 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2064 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2065 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK,
2066 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
2067 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE,
2068 EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
2069 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2070 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2071 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2072 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2073 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2074 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2075 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2076 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2077 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
2081 typedef struct gfc_code
2085 struct gfc_code *block, *next;
2088 gfc_st_label *here, *label1, *label2, *label3;
2089 gfc_symtree *symtree;
2090 gfc_expr *expr1, *expr2, *expr3;
2091 /* A name isn't sufficient to identify a subroutine, we need the actual
2092 symbol for the interface definition.
2093 const char *sub_name; */
2094 gfc_symbol *resolved_sym;
2095 gfc_intrinsic_sym *resolved_isym;
2099 gfc_actual_arglist *actual;
2100 gfc_case *case_list;
2101 gfc_iterator *iterator;
2113 gfc_association_list *assoc;
2119 gfc_filepos *filepos;
2120 gfc_inquire *inquire;
2123 gfc_forall_iterator *forall_iterator;
2124 struct gfc_code *which_construct;
2126 gfc_entry_list *entry;
2127 gfc_omp_clauses *omp_clauses;
2128 const char *omp_name;
2129 gfc_namelist *omp_namelist;
2132 ext; /* Points to additional structures required by statement */
2134 /* Cycle and break labels in constructs. */
2141 /* Storage for DATA statements. */
2142 typedef struct gfc_data_variable
2146 struct gfc_data_variable *list, *next;
2151 typedef struct gfc_data_value
2155 struct gfc_data_value *next;
2160 typedef struct gfc_data
2162 gfc_data_variable *var;
2163 gfc_data_value *value;
2166 struct gfc_data *next;
2171 /* Structure for holding compile options */
2175 gfc_source_form source_form;
2176 /* Maximum line lengths in fixed- and free-form source, respectively.
2177 When fixed_line_length or free_line_length are 0, the whole line is used,
2178 regardless of length.
2180 If the user requests a fixed_line_length <7 then gfc_init_options()
2181 emits a fatal error. */
2182 int fixed_line_length;
2183 int free_line_length;
2184 /* Maximum number of continuation lines in fixed- and free-form source,
2186 int max_continue_fixed;
2187 int max_continue_free;
2188 int max_identifier_length;
2189 int dump_parse_tree;
2193 int gfc_warn_conversion;
2194 int warn_conversion_extra;
2195 int warn_implicit_interface;
2196 int warn_implicit_procedure;
2197 int warn_line_truncation;
2198 int warn_surprising;
2201 int warn_intrinsic_shadow;
2202 int warn_intrinsics_std;
2203 int warn_character_truncation;
2204 int warn_array_temp;
2205 int warn_align_commons;
2206 int warn_unused_dummy_argument;
2209 int flag_all_intrinsics;
2210 int flag_default_double;
2211 int flag_default_integer;
2212 int flag_default_real;
2214 int flag_underscoring;
2215 int flag_second_underscore;
2216 int flag_implicit_none;
2217 int flag_max_stack_var_size;
2218 int flag_max_array_constructor;
2219 int flag_range_check;
2220 int flag_pack_derived;
2221 int flag_repack_arrays;
2222 int flag_preprocessed;
2227 int flag_allow_leading_underscore;
2229 int flag_external_blas;
2230 int blas_matmul_limit;
2231 int flag_cray_pointer;
2233 int gfc_flag_openmp;
2235 int flag_module_private;
2237 int flag_init_local_zero;
2238 int flag_init_integer;
2239 int flag_init_integer_value;
2241 int flag_init_logical;
2242 int flag_init_character;
2243 char flag_init_character_value;
2244 int flag_align_commons;
2245 int flag_whole_file;
2246 int flag_protect_parens;
2250 gfc_fcoarray coarray;
2256 int max_subrecord_length;
2260 extern gfc_option_t gfc_option;
2262 /* Constructor nodes for array and structure constructors. */
2263 typedef struct gfc_constructor
2265 gfc_constructor_base base;
2266 mpz_t offset; /* Offset within a constructor, used as
2270 gfc_iterator *iterator;
2275 gfc_component *component; /* Record the component being initialized. */
2282 typedef struct iterator_stack
2284 gfc_symtree *variable;
2286 struct iterator_stack *prev;
2289 extern iterator_stack *iter_stack;
2292 /* Used for (possibly nested) SELECT TYPE statements. */
2293 typedef struct gfc_select_type_stack
2295 gfc_symbol *selector; /* Current selector variable. */
2296 gfc_symtree *tmp; /* Current temporary variable. */
2297 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2299 gfc_select_type_stack;
2300 extern gfc_select_type_stack *select_type_stack;
2301 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2304 /* Node in the linked list used for storing finalizer procedures. */
2306 typedef struct gfc_finalizer
2308 struct gfc_finalizer* next;
2309 locus where; /* Where the FINAL declaration occurred. */
2311 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2312 symtree and later need only that. This way, we can access and call the
2313 finalizers from every context as they should be "always accessible". I
2314 don't make this a union because we need the information whether proc_sym is
2315 still referenced or not for dereferencing it on deleting a gfc_finalizer
2317 gfc_symbol* proc_sym;
2318 gfc_symtree* proc_tree;
2321 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2324 /************************ Function prototypes *************************/
2327 bool gfc_in_match_data (void);
2328 match gfc_match_char_spec (gfc_typespec *);
2331 void gfc_scanner_done_1 (void);
2332 void gfc_scanner_init_1 (void);
2334 void gfc_add_include_path (const char *, bool, bool);
2335 void gfc_add_intrinsic_modules_path (const char *);
2336 void gfc_release_include_path (void);
2337 FILE *gfc_open_included_file (const char *, bool, bool);
2338 FILE *gfc_open_intrinsic_module (const char *);
2340 int gfc_at_end (void);
2341 int gfc_at_eof (void);
2342 int gfc_at_bol (void);
2343 int gfc_at_eol (void);
2344 void gfc_advance_line (void);
2345 int gfc_check_include (void);
2346 int gfc_define_undef_line (void);
2348 int gfc_wide_is_printable (gfc_char_t);
2349 int gfc_wide_is_digit (gfc_char_t);
2350 int gfc_wide_fits_in_byte (gfc_char_t);
2351 gfc_char_t gfc_wide_tolower (gfc_char_t);
2352 gfc_char_t gfc_wide_toupper (gfc_char_t);
2353 size_t gfc_wide_strlen (const gfc_char_t *);
2354 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2355 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2356 char *gfc_widechar_to_char (const gfc_char_t *, int);
2357 gfc_char_t *gfc_char_to_widechar (const char *);
2359 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2361 void gfc_skip_comments (void);
2362 gfc_char_t gfc_next_char_literal (int);
2363 gfc_char_t gfc_next_char (void);
2364 char gfc_next_ascii_char (void);
2365 gfc_char_t gfc_peek_char (void);
2366 char gfc_peek_ascii_char (void);
2367 void gfc_error_recovery (void);
2368 void gfc_gobble_whitespace (void);
2369 gfc_try gfc_new_file (void);
2370 const char * gfc_read_orig_filename (const char *, const char **);
2372 extern gfc_source_form gfc_current_form;
2373 extern const char *gfc_source_file;
2374 extern locus gfc_current_locus;
2376 void gfc_start_source_files (void);
2377 void gfc_end_source_files (void);
2380 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2381 void gfc_free (void *);
2382 int gfc_terminal_width (void);
2383 void gfc_clear_ts (gfc_typespec *);
2384 FILE *gfc_open_file (const char *);
2385 const char *gfc_basic_typename (bt);
2386 const char *gfc_typename (gfc_typespec *);
2387 const char *gfc_op2string (gfc_intrinsic_op);
2388 const char *gfc_code2string (const mstring *, int);
2389 int gfc_string2code (const mstring *, const char *);
2390 const char *gfc_intent_string (sym_intent);
2392 void gfc_init_1 (void);
2393 void gfc_init_2 (void);
2394 void gfc_done_1 (void);
2395 void gfc_done_2 (void);
2397 int get_c_kind (const char *, CInteropKind_t *);
2400 unsigned int gfc_option_lang_mask (void);
2401 void gfc_init_options_struct (struct gcc_options *);
2402 void gfc_init_options (unsigned int,
2403 struct cl_decoded_option *);
2404 bool gfc_handle_option (size_t, const char *, int, int,
2405 const struct cl_option_handlers *);
2406 bool gfc_post_options (const char **);
2407 char *gfc_get_option_string (void);
2410 void gfc_maybe_initialize_eh (void);
2413 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2414 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2418 typedef struct gfc_error_buf
2421 size_t allocated, index;
2425 void gfc_error_init_1 (void);
2426 void gfc_buffer_error (int);
2428 const char *gfc_print_wide_char (gfc_char_t);
2430 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2431 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2432 void gfc_clear_warning (void);
2433 void gfc_warning_check (void);
2435 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2436 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2437 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2438 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2439 void gfc_clear_error (void);
2440 int gfc_error_check (void);
2441 int gfc_error_flag_test (void);
2443 notification gfc_notification_std (int);
2444 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2446 /* A general purpose syntax error. */
2447 #define gfc_syntax_error(ST) \
2448 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2450 void gfc_push_error (gfc_error_buf *);
2451 void gfc_pop_error (gfc_error_buf *);
2452 void gfc_free_error (gfc_error_buf *);
2454 void gfc_get_errors (int *, int *);
2455 void gfc_errors_to_warnings (int);
2458 void gfc_arith_init_1 (void);
2459 void gfc_arith_done_1 (void);
2460 arith gfc_check_integer_range (mpz_t p, int kind);
2461 bool gfc_check_character_range (gfc_char_t, int);
2464 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2465 int gfc_validate_kind (bt, int, bool);
2466 int gfc_get_int_kind_from_width_isofortranenv (int size);
2467 int gfc_get_real_kind_from_width_isofortranenv (int size);
2468 tree gfc_get_derived_type (gfc_symbol * derived);
2469 extern int gfc_index_integer_kind;
2470 extern int gfc_default_integer_kind;
2471 extern int gfc_max_integer_kind;
2472 extern int gfc_default_real_kind;
2473 extern int gfc_default_double_kind;
2474 extern int gfc_default_character_kind;
2475 extern int gfc_default_logical_kind;
2476 extern int gfc_default_complex_kind;
2477 extern int gfc_c_int_kind;
2478 extern int gfc_intio_kind;
2479 extern int gfc_charlen_int_kind;
2480 extern int gfc_numeric_storage_size;
2481 extern int gfc_character_storage_size;
2484 void gfc_clear_new_implicit (void);
2485 gfc_try gfc_add_new_implicit_range (int, int);
2486 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2487 void gfc_set_implicit_none (void);
2488 void gfc_check_function_type (gfc_namespace *);
2489 bool gfc_is_intrinsic_typename (const char *);
2491 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2492 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2494 void gfc_set_sym_referenced (gfc_symbol *);
2496 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2497 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2498 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2499 gfc_try gfc_add_codimension (symbol_attribute *, const char *, locus *);
2500 gfc_try gfc_add_contiguous (symbol_attribute *, const char *, locus *);
2501 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2502 gfc_try gfc_add_external (symbol_attribute *, locus *);
2503 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2504 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2505 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2506 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2507 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2508 match gfc_mod_pointee_as (gfc_array_spec *);
2509 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2510 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2511 gfc_try gfc_add_save (symbol_attribute *, save_state, const char *, locus *);
2512 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2513 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2514 gfc_try gfc_add_target (symbol_attribute *, locus *);
2515 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2516 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2517 gfc_try gfc_add_common (symbol_attribute *, locus *);
2518 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2519 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2520 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2521 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2522 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2523 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2524 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2525 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2526 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2527 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2528 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2529 gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
2530 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2531 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2533 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2534 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2535 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2536 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2537 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2538 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2539 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2540 const char *, locus *);
2541 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2542 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2543 gfc_formal_arglist *, locus *);
2544 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2546 void gfc_clear_attr (symbol_attribute *);
2547 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2548 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2550 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2551 gfc_symbol *gfc_use_derived (gfc_symbol *);
2552 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2553 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2555 gfc_st_label *gfc_get_st_label (int);
2556 void gfc_free_st_label (gfc_st_label *);
2557 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2558 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2560 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2562 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2563 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2564 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2565 void gfc_delete_symtree (gfc_symtree **, const char *);
2566 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2567 gfc_user_op *gfc_get_uop (const char *);
2568 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2569 void gfc_free_symbol (gfc_symbol *);
2570 void gfc_release_symbol (gfc_symbol *);
2571 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2572 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *);
2573 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2574 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2575 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2576 gfc_try verify_c_interop (gfc_typespec *);
2577 gfc_try verify_c_interop_param (gfc_symbol *);
2578 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2579 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2580 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2581 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2582 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2583 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2584 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2585 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2587 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2589 void gfc_undo_symbols (void);
2590 void gfc_commit_symbols (void);
2591 void gfc_commit_symbol (gfc_symbol *);
2592 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2593 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2594 void gfc_free_namespace (gfc_namespace *);
2596 void gfc_symbol_init_2 (void);
2597 void gfc_symbol_done_2 (void);
2599 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2600 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2601 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2602 void gfc_save_all (gfc_namespace *);
2604 void gfc_enforce_clean_symbol_state (void);
2605 void gfc_free_dt_list (void);
2608 gfc_gsymbol *gfc_get_gsymbol (const char *);
2609 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2611 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
2612 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2613 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
2614 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
2615 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
2617 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2618 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2619 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2621 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2623 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2624 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*);
2626 bool gfc_is_associate_pointer (gfc_symbol*);
2628 /* intrinsic.c -- true if working in an init-expr, false otherwise. */
2629 extern bool gfc_init_expr_flag;
2631 /* Given a symbol that we have decided is intrinsic, mark it as such
2632 by placing it into a special module that is otherwise impossible to
2635 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2637 void gfc_intrinsic_init_1 (void);
2638 void gfc_intrinsic_done_1 (void);
2640 char gfc_type_letter (bt);
2641 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2642 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2643 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2644 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2645 int gfc_generic_intrinsic (const char *);
2646 int gfc_specific_intrinsic (const char *);
2647 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2648 int gfc_intrinsic_actual_ok (const char *, const bool);
2649 gfc_intrinsic_sym *gfc_find_function (const char *);
2650 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2651 gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id);
2653 match gfc_intrinsic_func_interface (gfc_expr *, int);
2654 match gfc_intrinsic_sub_interface (gfc_code *, int);
2656 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2657 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2660 /* match.c -- FIXME */
2661 void gfc_free_iterator (gfc_iterator *, int);
2662 void gfc_free_forall_iterator (gfc_forall_iterator *);
2663 void gfc_free_alloc_list (gfc_alloc *);
2664 void gfc_free_namelist (gfc_namelist *);
2665 void gfc_free_equiv (gfc_equiv *);
2666 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *);
2667 void gfc_free_data (gfc_data *);
2668 void gfc_free_case_list (gfc_case *);
2670 /* matchexp.c -- FIXME too? */
2671 gfc_expr *gfc_get_parentheses (gfc_expr *);
2674 void gfc_free_omp_clauses (gfc_omp_clauses *);
2675 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2676 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2677 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2678 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2681 void gfc_free_actual_arglist (gfc_actual_arglist *);
2682 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2683 const char *gfc_extract_int (gfc_expr *, int *);
2684 bool is_subref_array (gfc_expr *);
2685 bool gfc_is_simply_contiguous (gfc_expr *, bool);
2687 gfc_expr *gfc_build_conversion (gfc_expr *);
2688 void gfc_free_ref_list (gfc_ref *);
2689 void gfc_type_convert_binary (gfc_expr *, int);
2690 int gfc_is_constant_expr (gfc_expr *);
2691 gfc_try gfc_simplify_expr (gfc_expr *, int);
2692 int gfc_has_vector_index (gfc_expr *);
2694 gfc_expr *gfc_get_expr (void);
2695 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
2696 gfc_expr *gfc_get_null_expr (locus *);
2697 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
2698 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
2699 gfc_expr *gfc_get_constant_expr (bt, int, locus *);
2700 gfc_expr *gfc_get_character_expr (int, locus *, const char *, int len);
2701 gfc_expr *gfc_get_int_expr (int, locus *, int);
2702 gfc_expr *gfc_get_logical_expr (int, locus *, bool);
2703 gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
2705 void gfc_free_expr (gfc_expr *);
2706 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2707 mpz_t *gfc_copy_shape (mpz_t *, int);
2708 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2709 gfc_expr *gfc_copy_expr (gfc_expr *);
2710 gfc_ref* gfc_copy_ref (gfc_ref*);
2712 gfc_try gfc_specification_expr (gfc_expr *);
2714 int gfc_numeric_ts (gfc_typespec *);
2715 int gfc_kind_max (gfc_expr *, gfc_expr *);
2717 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2718 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2719 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2720 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2722 bool gfc_has_default_initializer (gfc_symbol *);
2723 gfc_expr *gfc_default_initializer (gfc_typespec *);
2724 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2726 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
2728 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2729 bool (*)(gfc_expr *, gfc_symbol *, int*),
2731 void gfc_expr_set_symbols_referenced (gfc_expr *);
2732 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2733 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2734 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2736 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2738 bool gfc_is_coindexed (gfc_expr *);
2739 bool gfc_get_corank (gfc_expr *);
2740 bool gfc_has_ultimate_allocatable (gfc_expr *);
2741 bool gfc_has_ultimate_pointer (gfc_expr *);
2743 gfc_expr* gfc_build_intrinsic_call (const char*, locus, unsigned, ...);
2744 gfc_try gfc_check_vardef_context (gfc_expr*, bool, const char*);
2748 extern gfc_code new_st;
2750 void gfc_clear_new_st (void);
2751 gfc_code *gfc_get_code (void);
2752 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2753 void gfc_free_statement (gfc_code *);
2754 void gfc_free_statements (gfc_code *);
2755 void gfc_free_association_list (gfc_association_list *);
2758 gfc_try gfc_resolve_expr (gfc_expr *);
2759 void gfc_resolve (gfc_namespace *);
2760 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2761 int gfc_impure_variable (gfc_symbol *);
2762 int gfc_pure (gfc_symbol *);
2763 int gfc_elemental (gfc_symbol *);
2764 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2765 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2766 gfc_try gfc_resolve_index (gfc_expr *, int);
2767 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2768 int gfc_is_formal_arg (void);
2769 void gfc_resolve_substring_charlen (gfc_expr *);
2770 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2771 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2772 bool gfc_type_is_extensible (gfc_symbol *sym);
2776 gfc_iterator *gfc_copy_iterator (gfc_iterator *);
2778 void gfc_free_array_spec (gfc_array_spec *);
2779 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2781 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2782 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2783 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2785 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2787 void gfc_simplify_iterator_var (gfc_expr *);
2788 gfc_try gfc_expand_constructor (gfc_expr *, bool);
2789 int gfc_constant_ac (gfc_expr *);
2790 int gfc_expanded_ac (gfc_expr *);
2791 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2792 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2793 gfc_try gfc_check_constructor_type (gfc_expr *);
2794 gfc_try gfc_check_iter_variable (gfc_expr *);
2795 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2796 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2797 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2798 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2799 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2800 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2801 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2802 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2803 int gfc_is_compile_time_shape (gfc_array_spec *);
2805 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *);
2808 /* interface.c -- FIXME: some of these should be in symbol.c */
2809 void gfc_free_interface (gfc_interface *);
2810 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2811 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2812 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2814 void gfc_check_interfaces (gfc_namespace *);
2815 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2816 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2817 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2818 gfc_actual_arglist **);
2819 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2820 void gfc_free_formal_arglist (gfc_formal_arglist *);
2821 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2822 gfc_try gfc_add_interface (gfc_symbol *);
2823 gfc_interface *gfc_current_interface_head (void);
2824 void gfc_set_current_interface_head (gfc_interface *);
2825 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2826 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2827 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2828 int gfc_has_vector_subscript (gfc_expr*);
2831 extern gfc_st_label format_asterisk;
2833 void gfc_free_open (gfc_open *);
2834 gfc_try gfc_resolve_open (gfc_open *);
2835 void gfc_free_close (gfc_close *);
2836 gfc_try gfc_resolve_close (gfc_close *);
2837 void gfc_free_filepos (gfc_filepos *);
2838 gfc_try gfc_resolve_filepos (gfc_filepos *);
2839 void gfc_free_inquire (gfc_inquire *);
2840 gfc_try gfc_resolve_inquire (gfc_inquire *);
2841 void gfc_free_dt (gfc_dt *);
2842 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2843 void gfc_free_wait (gfc_wait *);
2844 gfc_try gfc_resolve_wait (gfc_wait *);
2847 void gfc_module_init_2 (void);
2848 void gfc_module_done_2 (void);
2849 void gfc_dump_module (const char *, int);
2850 bool gfc_check_access (gfc_access, gfc_access);
2851 void gfc_free_use_stmts (gfc_use_list *);
2854 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2855 symbol_attribute gfc_expr_attr (gfc_expr *);
2856 match gfc_match_rvalue (gfc_expr **);
2857 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2858 int gfc_check_digit (char, int);
2859 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
2862 void gfc_generate_code (gfc_namespace *);
2863 void gfc_generate_module_code (gfc_namespace *);
2866 typedef int (*compare_fn) (void *, void *);
2867 void gfc_insert_bbt (void *, void *, compare_fn);
2868 void gfc_delete_bbt (void *, void *, compare_fn);
2870 /* dump-parse-tree.c */
2871 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2874 gfc_try gfc_parse_file (void);
2875 void gfc_global_used (gfc_gsymbol *, locus *);
2876 gfc_namespace* gfc_build_block_ns (gfc_namespace *);
2879 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2882 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2885 void gfc_add_component_ref (gfc_expr *, const char *);
2886 gfc_expr *gfc_class_null_initializer (gfc_typespec *);
2887 gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
2888 gfc_array_spec **, bool);
2889 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
2890 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2891 const char*, bool, locus*);
2892 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2893 const char*, bool, locus*);
2894 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2895 gfc_intrinsic_op, bool,
2897 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2899 #define CLASS_DATA(sym) sym->ts.u.derived->components
2901 /* frontend-passes.c */
2903 void gfc_run_passes (gfc_namespace *);
2905 typedef int (*walk_code_fn_t) (gfc_code **, int *, void *);
2906 typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *);
2908 int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *);
2909 int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *);
2911 #endif /* GCC_GFORTRAN_H */