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"
39 #include "coretypes.h"
41 #include "splay-tree.h"
42 /* The following ifdefs are recommended by the autoconf documentation
43 for any code using alloca. */
45 /* AIX requires this to be the first thing in the file. */
47 #else /* not __GNUC__ */
50 #else /* do not HAVE_ALLOCA_H */
54 #ifndef alloca /* predefined by HP cc +Olibcalls */
56 #endif /* not predefined */
58 #endif /* do not HAVE_ALLOCA_H */
59 #endif /* not __GNUC__ */
61 /* Major control parameters. */
63 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
64 #define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */
65 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
66 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
68 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
71 #define free(x) Use_gfc_free_instead_of_free()
72 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
75 #define NULL ((void *) 0)
79 #define stringize(x) expand_macro(x)
80 #define expand_macro(x) # x
82 /* For the runtime library, a standard prefix is a requirement to
83 avoid cluttering the namespace with things nobody asked for. It's
84 ugly to look at and a pain to type when you add the prefix by hand,
85 so we hide it behind a macro. */
86 #define PREFIX(x) "_gfortran_" x
89 #define BLANK_COMMON_NAME "__BLNK__"
91 /* Macro to initialize an mstring structure. */
92 #define minit(s, t) { s, NULL, t }
94 /* Structure for storing strings to be matched by gfc_match_string. */
105 /*************************** Enums *****************************/
107 /* Used when matching and resolving data I/O transfer statements. */
110 { M_READ, M_WRITE, M_PRINT, M_INQUIRE }
113 /* The author remains confused to this day about the convention of
114 returning '0' for 'SUCCESS'... or was it the other way around? The
115 following enum makes things much more readable. We also start
116 values off at one instead of zero. */
119 { SUCCESS = 1, FAILURE }
122 /* This is returned by gfc_notification_std to know if, given the flags
123 that were given (-std=, -pedantic) we should issue an error, a warning
127 { SILENT, WARNING, ERROR }
130 /* Matchers return one of these three values. The difference between
131 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
132 successful, but that something non-syntactic is wrong and an error
133 has already been issued. */
136 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
140 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
143 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer
144 can take any arg with the pointer attribute as a param. */
146 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX, BT_LOGICAL, BT_CHARACTER,
147 BT_DERIVED, BT_CLASS, BT_PROCEDURE, BT_HOLLERITH, BT_VOID
151 /* Expression node types. */
153 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
154 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC
160 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
161 AS_ASSUMED_SIZE, AS_UNKNOWN
166 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
169 /* Statement label types. */
171 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
172 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
176 /* Intrinsic operators. */
178 { GFC_INTRINSIC_BEGIN = 0,
179 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
180 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
181 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
182 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
183 /* ==, /=, >, >=, <, <= */
184 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
185 INTRINSIC_LT, INTRINSIC_LE,
186 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
187 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
188 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
189 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
190 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
195 /* This macro is the number of intrinsic operators that exist.
196 Assumptions are made about the numbering of the interface_op enums. */
197 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
199 /* Arithmetic results. */
201 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
202 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT
209 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE,
210 ST_BLOCK, ST_BLOCK_DATA,
211 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
212 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
213 ST_ELSEWHERE, ST_END_BLOCK, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
214 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
215 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
216 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
217 ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION,
218 ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT,
219 ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY, ST_SYNC_IMAGES,
220 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
221 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
222 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT,
223 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
224 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
225 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS,
226 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
227 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
228 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
229 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
230 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
231 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
232 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
233 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
234 ST_OMP_TASKWAIT, ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL,
235 ST_GET_FCN_CHARACTERISTICS, ST_NONE
240 /* Types of interfaces that we can have. Assignment interfaces are
241 considered to be intrinsic operators. */
244 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
245 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
249 /* Symbol flavors: these are all mutually exclusive.
250 10 elements = 4 bits. */
251 typedef enum sym_flavor
253 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
254 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
259 /* Procedure types. 7 elements = 3 bits. */
260 typedef enum procedure_type
261 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
262 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
267 typedef enum sym_intent
268 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
273 typedef enum gfc_access
274 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
278 /* Flags to keep track of where an interface came from.
279 3 elements = 2 bits. */
281 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */
282 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */
283 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement
284 with explicit interface. */
288 /* Whether a SAVE attribute was set explicitly or implicitly. */
289 typedef enum save_state
290 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
294 /* Strings for all symbol attributes. We use these for dumping the
295 parse tree, in error messages, and also when reading and writing
296 modules. In symbol.c. */
297 extern const mstring flavors[];
298 extern const mstring procedures[];
299 extern const mstring intents[];
300 extern const mstring access_types[];
301 extern const mstring ifsrc_types[];
302 extern const mstring save_status[];
304 /* Enumeration of all the generic intrinsic functions. Used by the
305 backend for identification of a function. */
309 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
310 the backend (e.g. KIND). */
341 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
351 GFC_ISYM_DATE_AND_TIME,
355 GFC_ISYM_DOT_PRODUCT,
362 GFC_ISYM_ERFC_SCALED,
367 GFC_ISYM_EXTENDS_TYPE_OF,
384 GFC_ISYM_GET_COMMAND,
385 GFC_ISYM_GET_COMMAND_ARGUMENT,
388 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
414 GFC_ISYM_IS_IOSTAT_END,
415 GFC_ISYM_IS_IOSTAT_EOR,
446 GFC_ISYM_MAXEXPONENT,
453 GFC_ISYM_MINEXPONENT,
474 GFC_ISYM_RANDOM_NUMBER,
475 GFC_ISYM_RANDOM_SEED,
483 GFC_ISYM_SAME_TYPE_AS,
489 GFC_ISYM_SET_EXPONENT,
509 GFC_ISYM_SYSTEM_CLOCK,
530 typedef enum gfc_isym_id gfc_isym_id;
535 GFC_INIT_REAL_OFF = 0,
540 GFC_INIT_REAL_NEG_INF
546 GFC_INIT_LOGICAL_OFF = 0,
547 GFC_INIT_LOGICAL_FALSE,
548 GFC_INIT_LOGICAL_TRUE
554 GFC_INIT_CHARACTER_OFF = 0,
555 GFC_INIT_CHARACTER_ON
557 init_local_character;
561 GFC_INIT_INTEGER_OFF = 0,
568 GFC_FCOARRAY_NONE = 0,
573 /************************* Structures *****************************/
575 /* Used for keeping things in balanced binary trees. */
576 #define BBT_HEADER(self) int priority; struct self *left, *right
578 #define NAMED_INTCST(a,b,c,d) a,
581 ISOFORTRANENV_INVALID = -1,
582 #include "iso-fortran-env.def"
583 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
585 iso_fortran_env_symbol;
588 #define NAMED_INTCST(a,b,c,d) a,
589 #define NAMED_REALCST(a,b,c) a,
590 #define NAMED_CMPXCST(a,b,c) a,
591 #define NAMED_LOGCST(a,b,c) a,
592 #define NAMED_CHARKNDCST(a,b,c) a,
593 #define NAMED_CHARCST(a,b,c) a,
594 #define DERIVED_TYPE(a,b,c) a,
595 #define PROCEDURE(a,b) a,
598 ISOCBINDING_INVALID = -1,
599 #include "iso-c-binding.def"
601 ISOCBINDING_NUMBER = ISOCBINDING_LAST
603 iso_c_binding_symbol;
608 #undef NAMED_CHARKNDCST
615 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
621 char name[GFC_MAX_SYMBOL_LEN + 1];
622 int value; /* Used for both integer and character values. */
627 /* Array of structs, where the structs represent the C interop kinds.
628 The list will be implemented based on a hash of the kind name since
629 these could be accessed multiple times.
630 Declared in trans-types.c as a global, since it's in that file
631 that the list is initialized. */
632 extern CInteropKind_t c_interop_kinds_table[];
635 /* Structure and list of supported extension attributes. */
638 EXT_ATTR_DLLIMPORT = 0,
643 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
651 const char *middle_end_name;
655 extern const ext_attr_t ext_attr_list[];
657 /* Symbol attribute structure. */
660 /* Variable attributes. */
661 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1,
662 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
663 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
664 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1;
666 /* For CLASS containers, the pointer attribute is sometimes set internally
667 even though it was not directly specified. In this case, keep the
668 "real" (original) value here. */
669 unsigned class_pointer:1;
671 ENUM_BITFIELD (save_state) save:2;
673 unsigned data:1, /* Symbol is named in a DATA statement. */
674 is_protected:1, /* Symbol has been marked as protected. */
675 use_assoc:1, /* Symbol has been use-associated. */
676 use_only:1, /* Symbol has been use-associated, with ONLY. */
677 use_rename:1, /* Symbol has been use-associated and renamed. */
678 imported:1; /* Symbol has been associated by IMPORT. */
680 unsigned in_namelist:1, in_common:1, in_equivalence:1;
681 unsigned function:1, subroutine:1, procedure:1;
682 unsigned generic:1, generic_copy:1;
683 unsigned implicit_type:1; /* Type defined via implicit rules. */
684 unsigned untyped:1; /* No implicit type could be found. */
686 unsigned is_bind_c:1; /* say if is bound to C. */
687 unsigned extension:8; /* extension level of a derived type. */
688 unsigned is_class:1; /* is a CLASS container. */
689 unsigned class_ok:1; /* is a CLASS object with correct attributes. */
690 unsigned vtab:1; /* is a derived type vtab. */
692 /* These flags are both in the typespec and attribute. The attribute
693 list is what gets read from/written to a module file. The typespec
694 is created from a decl being processed. */
695 unsigned is_c_interop:1; /* It's c interoperable. */
696 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
698 /* Function/subroutine attributes */
699 unsigned sequence:1, elemental:1, pure:1, recursive:1;
700 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
702 /* This is set if the subroutine doesn't return. Currently, this
703 is only possible for intrinsic subroutines. */
706 /* Set if this procedure is an alternate entry point. These procedures
707 don't have any code associated, and the backend will turn them into
708 thunks to the master function. */
711 /* Set if this is the master function for a procedure with multiple
713 unsigned entry_master:1;
715 /* Set if this is the master function for a function with multiple
716 entry points where characteristics of the entry points differ. */
717 unsigned mixed_entry_master:1;
719 /* Set if a function must always be referenced by an explicit interface. */
720 unsigned always_explicit:1;
722 /* Set if the symbol has been referenced in an expression. No further
723 modification of type or type parameters is permitted. */
724 unsigned referenced:1;
726 /* Set if this is the symbol for the main program. */
727 unsigned is_main_program:1;
729 /* Mutually exclusive multibit attributes. */
730 ENUM_BITFIELD (gfc_access) access:2;
731 ENUM_BITFIELD (sym_intent) intent:2;
732 ENUM_BITFIELD (sym_flavor) flavor:4;
733 ENUM_BITFIELD (ifsrc) if_source:2;
735 ENUM_BITFIELD (procedure_type) proc:3;
737 /* Special attributes for Cray pointers, pointees. */
738 unsigned cray_pointer:1, cray_pointee:1;
740 /* The symbol is a derived type with allocatable components, pointer
741 components or private components, procedure pointer components,
742 possibly nested. zero_comp is true if the derived type has no
744 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
745 private_comp:1, zero_comp:1, coarray_comp:1;
747 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
748 unsigned ext_attr:EXT_ATTR_NUM;
750 /* The namespace where the attribute has been set. */
751 struct gfc_namespace *volatile_ns, *asynchronous_ns;
756 /* We need to store source lines as sequences of multibyte source
757 characters. We define here a type wide enough to hold any multibyte
758 source character, just like libcpp does. A 32-bit type is enough. */
760 #if HOST_BITS_PER_INT >= 32
761 typedef unsigned int gfc_char_t;
762 #elif HOST_BITS_PER_LONG >= 32
763 typedef unsigned long gfc_char_t;
764 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
765 typedef unsigned long long gfc_char_t;
767 # error "Cannot find an integer type with at least 32 bits"
771 /* The following three structures are used to identify a location in
774 gfc_file is used to maintain a tree of the source files and how
775 they include each other
777 gfc_linebuf holds a single line of source code and information
778 which file it resides in
780 locus point to the sourceline and the character in the source
784 typedef struct gfc_file
786 struct gfc_file *next, *up;
787 int inclusion_line, line;
791 typedef struct gfc_linebuf
793 source_location location;
794 struct gfc_file *file;
795 struct gfc_linebuf *next;
803 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
805 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
813 /* In order for the "gfc" format checking to work correctly, you must
814 have declared a typedef locus first. */
815 #if GCC_VERSION >= 4001
816 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
818 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
822 /* Suppress error messages or re-enable them. */
824 void gfc_push_suppress_errors (void);
825 void gfc_pop_suppress_errors (void);
828 /* Character length structures hold the expression that gives the
829 length of a character variable. We avoid putting these into
830 gfc_typespec because doing so prevents us from doing structure
831 copies and forces us to deallocate any typespecs we create, as well
832 as structures that contain typespecs. They also can have multiple
833 character typespecs pointing to them.
835 These structures form a singly linked list within the current
836 namespace and are deallocated with the namespace. It is possible to
837 end up with gfc_charlen structures that have nothing pointing to them. */
839 typedef struct gfc_charlen
841 struct gfc_expr *length;
842 struct gfc_charlen *next;
843 bool length_from_typespec; /* Length from explicit array ctor typespec? */
845 tree passed_length; /* Length argument explicitelly passed. */
851 #define gfc_get_charlen() XCNEW (gfc_charlen)
853 /* Type specification structure. */
861 struct gfc_symbol *derived; /* For derived types only. */
862 gfc_charlen *cl; /* For character types only. */
866 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
873 /* Array specification. */
876 int rank; /* A rank of zero means that a variable is a scalar. */
878 array_type type, cotype;
879 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
881 /* These two fields are used with the Cray Pointer extension. */
882 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
883 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
884 AS_EXPLICIT, but we want to remember that we
890 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
893 /* Components of derived types. */
894 typedef struct gfc_component
899 symbol_attribute attr;
904 struct gfc_expr *initializer;
905 struct gfc_component *next;
907 /* Needed for procedure pointer components. */
908 struct gfc_formal_arglist *formal;
909 struct gfc_namespace *formal_ns;
910 struct gfc_typebound_proc *tb;
914 #define gfc_get_component() XCNEW (gfc_component)
916 /* Formal argument lists are lists of symbols. */
917 typedef struct gfc_formal_arglist
919 /* Symbol representing the argument at this position in the arglist. */
920 struct gfc_symbol *sym;
921 /* Points to the next formal argument. */
922 struct gfc_formal_arglist *next;
926 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
929 /* The gfc_actual_arglist structure is for actual arguments. */
930 typedef struct gfc_actual_arglist
933 /* Alternate return label when the expr member is null. */
934 struct gfc_st_label *label;
936 /* This is set to the type of an eventual omitted optional
937 argument. This is used to determine if a hidden string length
938 argument has to be added to a function call. */
941 struct gfc_expr *expr;
942 struct gfc_actual_arglist *next;
946 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
949 /* Because a symbol can belong to multiple namelists, they must be
950 linked externally to the symbol itself. */
951 typedef struct gfc_namelist
953 struct gfc_symbol *sym;
954 struct gfc_namelist *next;
958 #define gfc_get_namelist() XCNEW (gfc_namelist)
963 OMP_LIST_FIRSTPRIVATE,
964 OMP_LIST_LASTPRIVATE,
965 OMP_LIST_COPYPRIVATE,
969 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
981 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
985 /* Because a symbol can belong to multiple namelists, they must be
986 linked externally to the symbol itself. */
988 enum gfc_omp_sched_kind
998 enum gfc_omp_default_sharing
1000 OMP_DEFAULT_UNKNOWN,
1002 OMP_DEFAULT_PRIVATE,
1004 OMP_DEFAULT_FIRSTPRIVATE
1007 typedef struct gfc_omp_clauses
1009 struct gfc_expr *if_expr;
1010 struct gfc_expr *num_threads;
1011 gfc_namelist *lists[OMP_LIST_NUM];
1012 enum gfc_omp_sched_kind sched_kind;
1013 struct gfc_expr *chunk_size;
1014 enum gfc_omp_default_sharing default_sharing;
1016 bool nowait, ordered, untied;
1020 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1023 /* The gfc_st_label structure is a BBT attached to a namespace that
1024 records the usage of statement labels within that space. */
1026 typedef struct gfc_st_label
1028 BBT_HEADER(gfc_st_label);
1032 gfc_sl_type defined, referenced;
1034 struct gfc_expr *format;
1043 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1044 typedef struct gfc_interface
1046 struct gfc_symbol *sym;
1048 struct gfc_interface *next;
1052 #define gfc_get_interface() XCNEW (gfc_interface)
1054 /* User operator nodes. These are like stripped down symbols. */
1060 struct gfc_namespace *ns;
1066 /* A list of specific bindings that are associated with a generic spec. */
1067 typedef struct gfc_tbp_generic
1069 /* The parser sets specific_st, upon resolution we look for the corresponding
1070 gfc_typebound_proc and set specific for further use. */
1071 struct gfc_symtree* specific_st;
1072 struct gfc_typebound_proc* specific;
1074 struct gfc_tbp_generic* next;
1078 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1081 /* Data needed for type-bound procedures. */
1082 typedef struct gfc_typebound_proc
1084 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1088 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1089 gfc_tbp_generic* generic;
1094 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1096 /* The overridden type-bound proc (or GENERIC with this name in the
1097 parent-type) or NULL if non. */
1098 struct gfc_typebound_proc* overridden;
1100 /* Once resolved, we use the position of pass_arg in the formal arglist of
1101 the binding-target procedure to identify it. The first argument has
1102 number 1 here, the second 2, and so on. */
1103 unsigned pass_arg_num;
1105 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1106 unsigned non_overridable:1;
1107 unsigned deferred:1;
1108 unsigned is_generic:1;
1109 unsigned function:1, subroutine:1;
1110 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1116 /* Symbol nodes. These are important things. They are what the
1117 standard refers to as "entities". The possibly multiple names that
1118 refer to the same entity are accomplished by a binary tree of
1119 symtree structures that is balanced by the red-black method-- more
1120 than one symtree node can point to any given symbol. */
1122 typedef struct gfc_symbol
1124 const char *name; /* Primary name, before renaming */
1125 const char *module; /* Module this symbol came from */
1129 symbol_attribute attr;
1131 /* The formal member points to the formal argument list if the
1132 symbol is a function or subroutine name. If the symbol is a
1133 generic name, the generic member points to the list of
1136 gfc_interface *generic;
1137 gfc_access component_access;
1139 gfc_formal_arglist *formal;
1140 struct gfc_namespace *formal_ns;
1141 struct gfc_namespace *f2k_derived;
1143 struct gfc_expr *value; /* Parameter/Initializer value */
1145 struct gfc_symbol *result; /* function result symbol */
1146 gfc_component *components; /* Derived type components */
1148 /* Defined only for Cray pointees; points to their pointer. */
1149 struct gfc_symbol *cp_pointer;
1151 int entry_id; /* Used in resolve.c for entries. */
1153 /* CLASS hashed name for declared and dynamic types in the class. */
1156 struct gfc_symbol *common_next; /* Links for COMMON syms */
1158 /* This is in fact a gfc_common_head but it is only used for pointer
1159 comparisons to check if symbols are in the same common block. */
1160 struct gfc_common_head* common_head;
1162 /* Make sure setup code for dummy arguments is generated in the correct
1166 gfc_namelist *namelist, *namelist_tail;
1168 /* Change management fields. Symbols that might be modified by the
1169 current statement have the mark member nonzero and are kept in a
1170 singly linked list through the tlink field. Of these symbols,
1171 symbols with old_symbol equal to NULL are symbols created within
1172 the current statement. Otherwise, old_symbol points to a copy of
1175 struct gfc_symbol *old_symbol, *tlink;
1176 unsigned mark:1, gfc_new:1;
1177 /* Nonzero if all equivalences associated with this symbol have been
1179 unsigned equiv_built:1;
1180 /* Set if this variable is used as an index name in a FORALL. */
1181 unsigned forall_index:1;
1183 struct gfc_namespace *ns; /* namespace containing this symbol */
1187 /* Identity of the intrinsic module the symbol comes from, or
1188 INTMOD_NONE if it's not imported from a intrinsic module. */
1189 intmod_id from_intmod;
1190 /* Identity of the symbol from intrinsic modules, from enums maintained
1191 separately by each intrinsic module. Used together with from_intmod,
1192 it uniquely identifies a symbol from an intrinsic module. */
1195 /* This may be repetitive, since the typespec now has a binding
1197 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1198 /* Store a reference to the common_block, if this symbol is in one. */
1199 struct gfc_common_head *common_block;
1204 /* This structure is used to keep track of symbols in common blocks. */
1205 typedef struct gfc_common_head
1208 char use_assoc, saved, threadprivate;
1209 char name[GFC_MAX_SYMBOL_LEN + 1];
1210 struct gfc_symbol *head;
1211 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1216 #define gfc_get_common_head() XCNEW (gfc_common_head)
1219 /* A list of all the alternate entry points for a procedure. */
1221 typedef struct gfc_entry_list
1223 /* The symbol for this entry point. */
1225 /* The zero-based id of this entry point. */
1227 /* The LABEL_EXPR marking this entry point. */
1229 /* The next item in the list. */
1230 struct gfc_entry_list *next;
1234 #define gfc_get_entry_list() \
1235 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1237 /* Lists of rename info for the USE statement. */
1239 typedef struct gfc_use_rename
1241 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1242 struct gfc_use_rename *next;
1244 gfc_intrinsic_op op;
1249 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1251 /* A list of all USE statements in a namespace. */
1253 typedef struct gfc_use_list
1255 const char *module_name;
1257 struct gfc_use_rename *rename;
1259 /* Next USE statement. */
1260 struct gfc_use_list *next;
1264 #define gfc_get_use_list() \
1265 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1267 /* Within a namespace, symbols are pointed to by symtree nodes that
1268 are linked together in a balanced binary tree. There can be
1269 several symtrees pointing to the same symbol node via USE
1272 typedef struct gfc_symtree
1274 BBT_HEADER (gfc_symtree);
1279 gfc_symbol *sym; /* Symbol associated with this node */
1281 gfc_common_head *common;
1282 gfc_typebound_proc *tb;
1288 /* A linked list of derived types in the namespace. */
1289 typedef struct gfc_dt_list
1291 struct gfc_symbol *derived;
1292 struct gfc_dt_list *next;
1296 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1298 /* A list of all derived types. */
1299 extern gfc_dt_list *gfc_derived_types;
1301 /* A namespace describes the contents of procedure, module, interface block
1302 or BLOCK construct. */
1303 /* ??? Anything else use these? */
1305 typedef struct gfc_namespace
1307 /* Tree containing all the symbols in this namespace. */
1308 gfc_symtree *sym_root;
1309 /* Tree containing all the user-defined operators in the namespace. */
1310 gfc_symtree *uop_root;
1311 /* Tree containing all the common blocks. */
1312 gfc_symtree *common_root;
1314 /* Tree containing type-bound procedures. */
1315 gfc_symtree *tb_sym_root;
1316 /* Type-bound user operators. */
1317 gfc_symtree *tb_uop_root;
1318 /* For derived-types, store type-bound intrinsic operators here. */
1319 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1320 /* Linked list of finalizer procedures. */
1321 struct gfc_finalizer *finalizers;
1323 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1324 int set_flag[GFC_LETTERS];
1325 /* Keeps track of the implicit types associated with the letters. */
1326 gfc_typespec default_type[GFC_LETTERS];
1327 /* Store the positions of IMPLICIT statements. */
1328 locus implicit_loc[GFC_LETTERS];
1330 /* If this is a namespace of a procedure, this points to the procedure. */
1331 struct gfc_symbol *proc_name;
1332 /* If this is the namespace of a unit which contains executable
1333 code, this points to it. */
1334 struct gfc_code *code;
1336 /* Points to the equivalences set up in this namespace. */
1337 struct gfc_equiv *equiv;
1339 /* Points to the equivalence groups produced by trans_common. */
1340 struct gfc_equiv_list *equiv_lists;
1342 gfc_interface *op[GFC_INTRINSIC_OPS];
1344 /* Points to the parent namespace, i.e. the namespace of a module or
1345 procedure in which the procedure belonging to this namespace is
1346 contained. The parent namespace points to this namespace either
1347 directly via CONTAINED, or indirectly via the chain built by
1349 struct gfc_namespace *parent;
1350 /* CONTAINED points to the first contained namespace. Sibling
1351 namespaces are chained via SIBLING. */
1352 struct gfc_namespace *contained, *sibling;
1354 gfc_common_head blank_common;
1355 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1357 gfc_st_label *st_labels;
1358 /* This list holds information about all the data initializers in
1360 struct gfc_data *data;
1362 gfc_charlen *cl_list, *old_cl_list;
1364 gfc_dt_list *derived_types;
1366 int save_all, seen_save, seen_implicit_none;
1368 /* Normally we don't need to refcount namespaces. However when we read
1369 a module containing a function with multiple entry points, this
1370 will appear as several functions with the same formal namespace. */
1373 /* A list of all alternate entry points to this procedure (or NULL). */
1374 gfc_entry_list *entries;
1376 /* A list of USE statements in this namespace. */
1377 gfc_use_list *use_stmts;
1379 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1380 unsigned is_block_data:1;
1382 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1383 unsigned has_import_set:1;
1385 /* Set to 1 if resolved has been called for this namespace.
1386 Holds -1 during resolution. */
1389 /* Set to 1 if code has been generated for this namespace. */
1390 unsigned translated:1;
1392 /* Set to 1 if symbols in this namespace should be 'construct entities',
1393 i.e. for BLOCK local variables. */
1394 unsigned construct_entities:1;
1398 extern gfc_namespace *gfc_current_ns;
1399 extern gfc_namespace *gfc_global_ns_list;
1401 /* Global symbols are symbols of global scope. Currently we only use
1402 this to detect collisions already when parsing.
1403 TODO: Extend to verify procedure calls. */
1405 enum gfc_symbol_type
1407 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1408 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1411 typedef struct gfc_gsymbol
1413 BBT_HEADER(gfc_gsymbol);
1416 const char *sym_name;
1417 const char *mod_name;
1418 const char *binding_label;
1419 enum gfc_symbol_type type;
1427 extern gfc_gsymbol *gfc_gsym_root;
1429 /* Information on interfaces being built. */
1432 interface_type type;
1436 gfc_intrinsic_op op;
1440 extern gfc_interface_info current_interface;
1443 /* Array reference. */
1445 enum gfc_array_ref_dimen_type
1447 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN
1450 typedef struct gfc_array_ref
1453 int dimen; /* # of components in the reference */
1457 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1458 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1459 *stride[GFC_MAX_DIMENSIONS];
1461 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1463 struct gfc_expr *offset;
1467 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1470 /* Component reference nodes. A variable is stored as an expression
1471 node that points to the base symbol. After that, a singly linked
1472 list of component reference nodes gives the variable's complete
1473 resolution. The array_ref component may be present and comes
1474 before the component component. */
1477 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1480 typedef struct gfc_ref
1486 struct gfc_array_ref ar;
1490 gfc_component *component;
1497 struct gfc_expr *start, *end; /* Substring */
1498 gfc_charlen *length;
1505 struct gfc_ref *next;
1509 #define gfc_get_ref() XCNEW (gfc_ref)
1512 /* Structures representing intrinsic symbols and their arguments lists. */
1513 typedef struct gfc_intrinsic_arg
1515 char name[GFC_MAX_SYMBOL_LEN + 1];
1519 ENUM_BITFIELD (sym_intent) intent:2;
1520 gfc_actual_arglist *actual;
1522 struct gfc_intrinsic_arg *next;
1528 /* Specifies the various kinds of check functions used to verify the
1529 argument lists of intrinsic functions. fX with X an integer refer
1530 to check functions of intrinsics with X arguments. f1m is used for
1531 the MAX and MIN intrinsics which can have an arbitrary number of
1532 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1533 these have special semantics. */
1537 gfc_try (*f0)(void);
1538 gfc_try (*f1)(struct gfc_expr *);
1539 gfc_try (*f1m)(gfc_actual_arglist *);
1540 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1541 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1542 gfc_try (*f3ml)(gfc_actual_arglist *);
1543 gfc_try (*f3red)(gfc_actual_arglist *);
1544 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1546 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1547 struct gfc_expr *, struct gfc_expr *);
1551 /* Like gfc_check_f, these specify the type of the simplification
1552 function associated with an intrinsic. The fX are just like in
1553 gfc_check_f. cc is used for type conversion functions. */
1557 struct gfc_expr *(*f0)(void);
1558 struct gfc_expr *(*f1)(struct gfc_expr *);
1559 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1560 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1562 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1563 struct gfc_expr *, struct gfc_expr *);
1564 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1565 struct gfc_expr *, struct gfc_expr *,
1567 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1571 /* Again like gfc_check_f, these specify the type of the resolution
1572 function associated with an intrinsic. The fX are just like in
1573 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1577 void (*f0)(struct gfc_expr *);
1578 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1579 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1580 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1581 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1583 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1584 struct gfc_expr *, struct gfc_expr *);
1585 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1586 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1587 void (*s1)(struct gfc_code *);
1592 typedef struct gfc_intrinsic_sym
1594 const char *name, *lib_name;
1595 gfc_intrinsic_arg *formal;
1597 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1598 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1602 gfc_simplify_f simplify;
1604 gfc_resolve_f resolve;
1605 struct gfc_intrinsic_sym *specific_head, *next;
1612 typedef struct gfc_class_esym_list
1614 gfc_symbol *derived;
1616 struct gfc_expr *hash_value;
1617 struct gfc_class_esym_list *next;
1619 gfc_class_esym_list;
1621 #define gfc_get_class_esym_list() XCNEW (gfc_class_esym_list)
1623 /* Expression nodes. The expression node types deserve explanations,
1624 since the last couple can be easily misconstrued:
1626 EXPR_OP Operator node pointing to one or two other nodes
1627 EXPR_FUNCTION Function call, symbol points to function's name
1628 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1629 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1630 which expresses structure, array and substring refs.
1631 EXPR_NULL The NULL pointer value (which also has a basic type).
1632 EXPR_SUBSTRING A substring of a constant string
1633 EXPR_STRUCTURE A structure constructor
1634 EXPR_ARRAY An array constructor.
1635 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1636 component or type-bound procedure. */
1641 #define GFC_RND_MODE GMP_RNDN
1642 #define GFC_MPC_RND_MODE MPC_RNDNN
1644 typedef struct gfc_expr
1648 gfc_typespec ts; /* These two refer to the overall expression */
1651 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1653 /* Nonnull for functions and structure constructors, may also used to hold the
1654 base-object for component calls. */
1655 gfc_symtree *symtree;
1661 /* True if the expression is a call to a function that returns an array,
1662 and if we have decided not to allocate temporary data for that array.
1663 is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1664 denotes a signalling not-a-number. */
1665 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1, is_snan : 1;
1667 /* Sometimes, when an error has been emitted, it is necessary to prevent
1668 it from recurring. */
1669 unsigned int error : 1;
1671 /* Mark and expression where a user operator has been substituted by
1672 a function call in interface.c(gfc_extend_expr). */
1673 unsigned int user_operator : 1;
1675 /* Used to quickly find a given constructor by its offset. */
1676 splay_tree con_by_offset;
1678 /* If an expression comes from a Hollerith constant or compile-time
1679 evaluation of a transfer statement, it may have a prescribed target-
1680 memory representation, and these cannot always be backformed from
1703 gfc_intrinsic_op op;
1705 struct gfc_expr *op1, *op2;
1711 gfc_actual_arglist *actual;
1712 const char *name; /* Points to the ultimate name of the function */
1713 gfc_intrinsic_sym *isym;
1715 gfc_class_esym_list *class_esym;
1721 gfc_actual_arglist* actual;
1723 /* Base-object, whose component was called. NULL means that it should
1724 be taken from symtree/ref. */
1725 struct gfc_expr* base_object;
1726 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1728 /* For type-bound operators, we want to call PASS procedures but already
1729 have the full arglist; mark this, so that it is not extended by the
1731 unsigned ignore_pass:1;
1733 /* Do assign-calls rather than calls, that is appropriate dependency
1746 struct gfc_constructor *constructor;
1754 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1756 /* Structures for information associated with different kinds of
1757 numbers. The first set of integer parameters define all there is
1758 to know about a particular kind. The rest of the elements are
1759 computed from the first elements. */
1763 /* Values really representable by the target. */
1764 mpz_t huge, pedantic_min_int, min_int;
1766 int kind, radix, digits, bit_size, range;
1768 /* True if the C type of the given name maps to this precision.
1769 Note that more than one bit can be set. */
1770 unsigned int c_char : 1;
1771 unsigned int c_short : 1;
1772 unsigned int c_int : 1;
1773 unsigned int c_long : 1;
1774 unsigned int c_long_long : 1;
1778 extern gfc_integer_info gfc_integer_kinds[];
1785 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1786 unsigned int c_bool : 1;
1790 extern gfc_logical_info gfc_logical_kinds[];
1795 mpfr_t epsilon, huge, tiny, subnormal;
1796 int kind, radix, digits, min_exponent, max_exponent;
1797 int range, precision;
1799 /* The precision of the type as reported by GET_MODE_PRECISION. */
1802 /* True if the C type of the given name maps to this precision.
1803 Note that more than one bit can be set. */
1804 unsigned int c_float : 1;
1805 unsigned int c_double : 1;
1806 unsigned int c_long_double : 1;
1810 extern gfc_real_info gfc_real_kinds[];
1819 extern gfc_character_info gfc_character_kinds[];
1822 /* Equivalence structures. Equivalent lvalues are linked along the
1823 *eq pointer, equivalence sets are strung along the *next node. */
1824 typedef struct gfc_equiv
1826 struct gfc_equiv *next, *eq;
1833 #define gfc_get_equiv() XCNEW (gfc_equiv)
1835 /* Holds a single equivalence member after processing. */
1836 typedef struct gfc_equiv_info
1839 HOST_WIDE_INT offset;
1840 HOST_WIDE_INT length;
1841 struct gfc_equiv_info *next;
1844 /* Holds equivalence groups, after they have been processed. */
1845 typedef struct gfc_equiv_list
1847 gfc_equiv_info *equiv;
1848 struct gfc_equiv_list *next;
1851 /* gfc_case stores the selector list of a case statement. The *low
1852 and *high pointers can point to the same expression in the case of
1853 a single value. If *high is NULL, the selection is from *low
1854 upwards, if *low is NULL the selection is *high downwards.
1856 This structure has separate fields to allow single and double linked
1857 lists of CASEs at the same time. The singe linked list along the NEXT
1858 field is a list of cases for a single CASE label. The double linked
1859 list along the LEFT/RIGHT fields is used to detect overlap and to
1860 build a table of the cases for SELECT constructs with a CHARACTER
1863 typedef struct gfc_case
1865 /* Where we saw this case. */
1869 /* Case range values. If (low == high), it's a single value. If one of
1870 the labels is NULL, it's an unbounded case. If both are NULL, this
1871 represents the default case. */
1872 gfc_expr *low, *high;
1874 /* Only used for SELECT TYPE. */
1877 /* Next case label in the list of cases for a single CASE label. */
1878 struct gfc_case *next;
1880 /* Used for detecting overlap, and for code generation. */
1881 struct gfc_case *left, *right;
1883 /* True if this case label can never be matched. */
1888 #define gfc_get_case() XCNEW (gfc_case)
1893 gfc_expr *var, *start, *end, *step;
1897 #define gfc_get_iterator() XCNEW (gfc_iterator)
1900 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1902 typedef struct gfc_alloc
1905 struct gfc_alloc *next;
1909 #define gfc_get_alloc() XCNEW (gfc_alloc)
1914 gfc_expr *unit, *file, *status, *access, *form, *recl,
1915 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1916 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1924 gfc_expr *unit, *status, *iostat, *iomsg;
1932 gfc_expr *unit, *iostat, *iomsg;
1940 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1941 *name, *access, *sequential, *direct, *form, *formatted,
1942 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1943 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1944 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1954 gfc_expr *unit, *iostat, *iomsg, *id;
1955 gfc_st_label *err, *end, *eor;
1962 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1963 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1964 *sign, *extra_comma;
1966 gfc_symbol *namelist;
1967 /* A format_label of `format_asterisk' indicates the "*" format */
1968 gfc_st_label *format_label;
1969 gfc_st_label *err, *end, *eor;
1971 locus eor_where, end_where, err_where;
1976 typedef struct gfc_forall_iterator
1978 gfc_expr *var, *start, *end, *stride;
1979 struct gfc_forall_iterator *next;
1981 gfc_forall_iterator;
1984 /* Executable statements that fill gfc_code structures. */
1987 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
1988 EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
1989 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
1990 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1991 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK,
1992 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
1993 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE,
1994 EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
1995 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
1996 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1997 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1998 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1999 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2000 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2001 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2002 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2003 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
2007 typedef struct gfc_code
2011 struct gfc_code *block, *next;
2014 gfc_st_label *here, *label1, *label2, *label3;
2015 gfc_symtree *symtree;
2016 gfc_expr *expr1, *expr2, *expr3;
2017 /* A name isn't sufficient to identify a subroutine, we need the actual
2018 symbol for the interface definition.
2019 const char *sub_name; */
2020 gfc_symbol *resolved_sym;
2021 gfc_intrinsic_sym *resolved_isym;
2025 gfc_actual_arglist *actual;
2026 gfc_case *case_list;
2027 gfc_iterator *iterator;
2038 gfc_filepos *filepos;
2039 gfc_inquire *inquire;
2042 gfc_forall_iterator *forall_iterator;
2043 struct gfc_code *whichloop;
2045 gfc_entry_list *entry;
2046 gfc_omp_clauses *omp_clauses;
2047 const char *omp_name;
2048 gfc_namelist *omp_namelist;
2052 ext; /* Points to additional structures required by statement */
2054 /* Backend_decl is used for cycle and break labels in do loops, and
2055 probably for other constructs as well, once we translate them. */
2061 /* Storage for DATA statements. */
2062 typedef struct gfc_data_variable
2066 struct gfc_data_variable *list, *next;
2071 typedef struct gfc_data_value
2075 struct gfc_data_value *next;
2080 typedef struct gfc_data
2082 gfc_data_variable *var;
2083 gfc_data_value *value;
2086 struct gfc_data *next;
2091 /* Structure for holding compile options */
2095 gfc_source_form source_form;
2096 /* Maximum line lengths in fixed- and free-form source, respectively.
2097 When fixed_line_length or free_line_length are 0, the whole line is used,
2098 regardless of length.
2100 If the user requests a fixed_line_length <7 then gfc_init_options()
2101 emits a fatal error. */
2102 int fixed_line_length;
2103 int free_line_length;
2104 /* Maximum number of continuation lines in fixed- and free-form source,
2106 int max_continue_fixed;
2107 int max_continue_free;
2108 int max_identifier_length;
2109 int dump_parse_tree;
2113 int warn_conversion;
2114 int warn_implicit_interface;
2115 int warn_implicit_procedure;
2116 int warn_line_truncation;
2117 int warn_surprising;
2120 int warn_intrinsic_shadow;
2121 int warn_intrinsics_std;
2122 int warn_character_truncation;
2123 int warn_array_temp;
2124 int warn_align_commons;
2127 int flag_all_intrinsics;
2128 int flag_default_double;
2129 int flag_default_integer;
2130 int flag_default_real;
2132 int flag_underscoring;
2133 int flag_second_underscore;
2134 int flag_implicit_none;
2135 int flag_max_stack_var_size;
2136 int flag_max_array_constructor;
2137 int flag_range_check;
2138 int flag_pack_derived;
2139 int flag_repack_arrays;
2140 int flag_preprocessed;
2145 int flag_allow_leading_underscore;
2147 int flag_external_blas;
2148 int blas_matmul_limit;
2149 int flag_cray_pointer;
2153 int flag_module_private;
2155 int flag_init_local_zero;
2156 int flag_init_integer;
2157 int flag_init_integer_value;
2159 int flag_init_logical;
2160 int flag_init_character;
2161 char flag_init_character_value;
2162 int flag_align_commons;
2163 int flag_whole_file;
2164 int flag_protect_parens;
2168 gfc_fcoarray coarray;
2174 int max_subrecord_length;
2178 extern gfc_option_t gfc_option;
2180 /* Constructor nodes for array and structure constructors. */
2181 typedef struct gfc_constructor
2184 gfc_iterator *iterator;
2186 struct gfc_constructor *next;
2189 mpz_t offset; /* Record the offset of array element which appears in
2190 data statement like "data a(5)/4/". */
2191 gfc_component *component; /* Record the component being initialized. */
2194 mpz_t repeat; /* Record the repeat number of initial values in data
2195 statement like "data a/5*10/". */
2200 typedef struct iterator_stack
2202 gfc_symtree *variable;
2204 struct iterator_stack *prev;
2207 extern iterator_stack *iter_stack;
2210 /* Used for (possibly nested) SELECT TYPE statements. */
2211 typedef struct gfc_select_type_stack
2213 gfc_symbol *selector; /* Current selector variable. */
2214 gfc_symtree *tmp; /* Current temporary variable. */
2215 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2217 gfc_select_type_stack;
2218 extern gfc_select_type_stack *select_type_stack;
2219 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2222 /* Node in the linked list used for storing finalizer procedures. */
2224 typedef struct gfc_finalizer
2226 struct gfc_finalizer* next;
2227 locus where; /* Where the FINAL declaration occurred. */
2229 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2230 symtree and later need only that. This way, we can access and call the
2231 finalizers from every context as they should be "always accessible". I
2232 don't make this a union because we need the information whether proc_sym is
2233 still referenced or not for dereferencing it on deleting a gfc_finalizer
2235 gfc_symbol* proc_sym;
2236 gfc_symtree* proc_tree;
2239 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2242 /************************ Function prototypes *************************/
2245 bool gfc_in_match_data (void);
2246 match gfc_match_char_spec (gfc_typespec *);
2249 void gfc_scanner_done_1 (void);
2250 void gfc_scanner_init_1 (void);
2252 void gfc_add_include_path (const char *, bool, bool);
2253 void gfc_add_intrinsic_modules_path (const char *);
2254 void gfc_release_include_path (void);
2255 FILE *gfc_open_included_file (const char *, bool, bool);
2256 FILE *gfc_open_intrinsic_module (const char *);
2258 int gfc_at_end (void);
2259 int gfc_at_eof (void);
2260 int gfc_at_bol (void);
2261 int gfc_at_eol (void);
2262 void gfc_advance_line (void);
2263 int gfc_check_include (void);
2264 int gfc_define_undef_line (void);
2266 int gfc_wide_is_printable (gfc_char_t);
2267 int gfc_wide_is_digit (gfc_char_t);
2268 int gfc_wide_fits_in_byte (gfc_char_t);
2269 gfc_char_t gfc_wide_tolower (gfc_char_t);
2270 gfc_char_t gfc_wide_toupper (gfc_char_t);
2271 size_t gfc_wide_strlen (const gfc_char_t *);
2272 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2273 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2274 char *gfc_widechar_to_char (const gfc_char_t *, int);
2275 gfc_char_t *gfc_char_to_widechar (const char *);
2277 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2279 void gfc_skip_comments (void);
2280 gfc_char_t gfc_next_char_literal (int);
2281 gfc_char_t gfc_next_char (void);
2282 char gfc_next_ascii_char (void);
2283 gfc_char_t gfc_peek_char (void);
2284 char gfc_peek_ascii_char (void);
2285 void gfc_error_recovery (void);
2286 void gfc_gobble_whitespace (void);
2287 gfc_try gfc_new_file (void);
2288 const char * gfc_read_orig_filename (const char *, const char **);
2290 extern gfc_source_form gfc_current_form;
2291 extern const char *gfc_source_file;
2292 extern locus gfc_current_locus;
2294 void gfc_start_source_files (void);
2295 void gfc_end_source_files (void);
2298 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2299 void gfc_free (void *);
2300 int gfc_terminal_width (void);
2301 void gfc_clear_ts (gfc_typespec *);
2302 FILE *gfc_open_file (const char *);
2303 const char *gfc_basic_typename (bt);
2304 const char *gfc_typename (gfc_typespec *);
2305 const char *gfc_op2string (gfc_intrinsic_op);
2306 const char *gfc_code2string (const mstring *, int);
2307 int gfc_string2code (const mstring *, const char *);
2308 const char *gfc_intent_string (sym_intent);
2310 void gfc_init_1 (void);
2311 void gfc_init_2 (void);
2312 void gfc_done_1 (void);
2313 void gfc_done_2 (void);
2315 int get_c_kind (const char *, CInteropKind_t *);
2318 unsigned int gfc_init_options (unsigned int, const char **);
2319 int gfc_handle_option (size_t, const char *, int);
2320 bool gfc_post_options (const char **);
2323 void gfc_maybe_initialize_eh (void);
2326 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2327 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2331 typedef struct gfc_error_buf
2334 size_t allocated, index;
2338 void gfc_error_init_1 (void);
2339 void gfc_buffer_error (int);
2341 const char *gfc_print_wide_char (gfc_char_t);
2343 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2344 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2345 void gfc_clear_warning (void);
2346 void gfc_warning_check (void);
2348 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2349 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2350 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2351 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2352 void gfc_clear_error (void);
2353 int gfc_error_check (void);
2354 int gfc_error_flag_test (void);
2356 notification gfc_notification_std (int);
2357 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2359 /* A general purpose syntax error. */
2360 #define gfc_syntax_error(ST) \
2361 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2363 void gfc_push_error (gfc_error_buf *);
2364 void gfc_pop_error (gfc_error_buf *);
2365 void gfc_free_error (gfc_error_buf *);
2367 void gfc_get_errors (int *, int *);
2368 void gfc_errors_to_warnings (int);
2371 void gfc_arith_init_1 (void);
2372 void gfc_arith_done_1 (void);
2373 arith gfc_check_integer_range (mpz_t p, int kind);
2374 bool gfc_check_character_range (gfc_char_t, int);
2377 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2378 int gfc_validate_kind (bt, int, bool);
2379 int gfc_get_int_kind_from_width_isofortranenv (int size);
2380 int gfc_get_real_kind_from_width_isofortranenv (int size);
2381 tree gfc_get_derived_type (gfc_symbol * derived);
2382 extern int gfc_index_integer_kind;
2383 extern int gfc_default_integer_kind;
2384 extern int gfc_max_integer_kind;
2385 extern int gfc_default_real_kind;
2386 extern int gfc_default_double_kind;
2387 extern int gfc_default_character_kind;
2388 extern int gfc_default_logical_kind;
2389 extern int gfc_default_complex_kind;
2390 extern int gfc_c_int_kind;
2391 extern int gfc_intio_kind;
2392 extern int gfc_charlen_int_kind;
2393 extern int gfc_numeric_storage_size;
2394 extern int gfc_character_storage_size;
2397 void gfc_clear_new_implicit (void);
2398 gfc_try gfc_add_new_implicit_range (int, int);
2399 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2400 void gfc_set_implicit_none (void);
2401 void gfc_check_function_type (gfc_namespace *);
2402 bool gfc_is_intrinsic_typename (const char *);
2404 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2405 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2407 void gfc_set_sym_referenced (gfc_symbol *);
2409 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2410 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2411 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2412 gfc_try gfc_add_codimension (symbol_attribute *, const char *, locus *);
2413 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2414 gfc_try gfc_add_external (symbol_attribute *, locus *);
2415 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2416 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2417 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2418 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2419 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2420 match gfc_mod_pointee_as (gfc_array_spec *);
2421 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2422 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2423 gfc_try gfc_add_save (symbol_attribute *, const char *, locus *);
2424 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2425 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2426 gfc_try gfc_add_target (symbol_attribute *, locus *);
2427 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2428 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2429 gfc_try gfc_add_common (symbol_attribute *, locus *);
2430 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2431 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2432 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2433 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2434 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2435 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2436 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2437 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2438 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2439 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2440 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2441 gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
2442 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2443 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2445 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2446 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2447 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2448 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2449 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2450 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2451 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2452 const char *, locus *);
2453 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2454 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2455 gfc_formal_arglist *, locus *);
2456 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2458 void gfc_clear_attr (symbol_attribute *);
2459 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2460 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2462 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2463 gfc_symbol *gfc_use_derived (gfc_symbol *);
2464 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2465 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2467 gfc_st_label *gfc_get_st_label (int);
2468 void gfc_free_st_label (gfc_st_label *);
2469 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2470 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2472 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2474 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2475 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2476 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2477 void gfc_delete_symtree (gfc_symtree **, const char *);
2478 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2479 gfc_user_op *gfc_get_uop (const char *);
2480 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2481 void gfc_free_symbol (gfc_symbol *);
2482 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2483 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2484 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2485 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2486 gfc_try verify_c_interop (gfc_typespec *);
2487 gfc_try verify_c_interop_param (gfc_symbol *);
2488 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2489 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2490 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2491 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2492 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2493 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2494 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2495 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2497 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2499 void gfc_undo_symbols (void);
2500 void gfc_commit_symbols (void);
2501 void gfc_commit_symbol (gfc_symbol *);
2502 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2503 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2504 void gfc_free_namespace (gfc_namespace *);
2506 void gfc_symbol_init_2 (void);
2507 void gfc_symbol_done_2 (void);
2509 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2510 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2511 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2512 void gfc_save_all (gfc_namespace *);
2514 void gfc_symbol_state (void);
2515 void gfc_free_dt_list (void);
2518 gfc_gsymbol *gfc_get_gsymbol (const char *);
2519 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2521 gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
2523 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
2524 gfc_typebound_proc* gfc_get_typebound_proc (void);
2525 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2526 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
2527 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
2528 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
2529 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2530 const char*, bool, locus*);
2531 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2532 const char*, bool, locus*);
2533 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2534 gfc_intrinsic_op, bool,
2536 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2538 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2539 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2540 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2542 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2544 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2547 extern int gfc_init_expr;
2549 /* Given a symbol that we have decided is intrinsic, mark it as such
2550 by placing it into a special module that is otherwise impossible to
2553 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2555 void gfc_intrinsic_init_1 (void);
2556 void gfc_intrinsic_done_1 (void);
2558 char gfc_type_letter (bt);
2559 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2560 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2561 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2562 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2563 int gfc_generic_intrinsic (const char *);
2564 int gfc_specific_intrinsic (const char *);
2565 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2566 int gfc_intrinsic_actual_ok (const char *, const bool);
2567 gfc_intrinsic_sym *gfc_find_function (const char *);
2568 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2570 match gfc_intrinsic_func_interface (gfc_expr *, int);
2571 match gfc_intrinsic_sub_interface (gfc_code *, int);
2573 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2574 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2577 /* match.c -- FIXME */
2578 void gfc_free_iterator (gfc_iterator *, int);
2579 void gfc_free_forall_iterator (gfc_forall_iterator *);
2580 void gfc_free_alloc_list (gfc_alloc *);
2581 void gfc_free_namelist (gfc_namelist *);
2582 void gfc_free_equiv (gfc_equiv *);
2583 void gfc_free_data (gfc_data *);
2584 void gfc_free_case_list (gfc_case *);
2586 /* matchexp.c -- FIXME too? */
2587 gfc_expr *gfc_get_parentheses (gfc_expr *);
2590 void gfc_free_omp_clauses (gfc_omp_clauses *);
2591 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2592 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2593 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2594 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2597 void gfc_free_actual_arglist (gfc_actual_arglist *);
2598 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2599 const char *gfc_extract_int (gfc_expr *, int *);
2600 bool is_subref_array (gfc_expr *);
2602 void gfc_add_component_ref (gfc_expr *, const char *);
2603 gfc_expr *gfc_build_conversion (gfc_expr *);
2604 void gfc_free_ref_list (gfc_ref *);
2605 void gfc_type_convert_binary (gfc_expr *, int);
2606 int gfc_is_constant_expr (gfc_expr *);
2607 gfc_try gfc_simplify_expr (gfc_expr *, int);
2608 int gfc_has_vector_index (gfc_expr *);
2610 gfc_expr *gfc_get_expr (void);
2611 void gfc_free_expr (gfc_expr *);
2612 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2613 gfc_expr *gfc_int_expr (int);
2614 gfc_expr *gfc_logical_expr (int, locus *);
2615 mpz_t *gfc_copy_shape (mpz_t *, int);
2616 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2617 gfc_expr *gfc_copy_expr (gfc_expr *);
2618 gfc_ref* gfc_copy_ref (gfc_ref*);
2620 gfc_try gfc_specification_expr (gfc_expr *);
2622 int gfc_numeric_ts (gfc_typespec *);
2623 int gfc_kind_max (gfc_expr *, gfc_expr *);
2625 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2626 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2627 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2628 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2630 gfc_expr *gfc_default_initializer (gfc_typespec *);
2631 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2633 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
2635 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2636 bool (*)(gfc_expr *, gfc_symbol *, int*),
2638 void gfc_expr_set_symbols_referenced (gfc_expr *);
2639 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2640 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2641 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2643 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2646 extern gfc_code new_st;
2648 void gfc_clear_new_st (void);
2649 gfc_code *gfc_get_code (void);
2650 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2651 void gfc_free_statement (gfc_code *);
2652 void gfc_free_statements (gfc_code *);
2655 gfc_try gfc_resolve_expr (gfc_expr *);
2656 void gfc_resolve (gfc_namespace *);
2657 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2658 int gfc_impure_variable (gfc_symbol *);
2659 int gfc_pure (gfc_symbol *);
2660 int gfc_elemental (gfc_symbol *);
2661 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2662 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2663 gfc_try gfc_resolve_index (gfc_expr *, int);
2664 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2665 int gfc_is_formal_arg (void);
2666 void gfc_resolve_substring_charlen (gfc_expr *);
2667 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2668 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2669 bool gfc_type_is_extensible (gfc_symbol *sym);
2673 void gfc_free_array_spec (gfc_array_spec *);
2674 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2676 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2677 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2678 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2680 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2682 gfc_expr *gfc_start_constructor (bt, int, locus *);
2683 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2684 void gfc_free_constructor (gfc_constructor *);
2685 void gfc_simplify_iterator_var (gfc_expr *);
2686 gfc_try gfc_expand_constructor (gfc_expr *);
2687 int gfc_constant_ac (gfc_expr *);
2688 int gfc_expanded_ac (gfc_expr *);
2689 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2690 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2691 gfc_try gfc_check_constructor_type (gfc_expr *);
2692 gfc_try gfc_check_iter_variable (gfc_expr *);
2693 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2694 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2695 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2696 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2697 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2698 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2699 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2700 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2701 gfc_constructor *gfc_get_constructor (void);
2702 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2703 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2704 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2705 int gfc_is_compile_time_shape (gfc_array_spec *);
2707 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *);
2710 /* interface.c -- FIXME: some of these should be in symbol.c */
2711 void gfc_free_interface (gfc_interface *);
2712 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2713 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2714 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2716 void gfc_check_interfaces (gfc_namespace *);
2717 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2718 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2719 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2720 gfc_actual_arglist **);
2721 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2722 void gfc_free_formal_arglist (gfc_formal_arglist *);
2723 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2724 gfc_try gfc_add_interface (gfc_symbol *);
2725 gfc_interface *gfc_current_interface_head (void);
2726 void gfc_set_current_interface_head (gfc_interface *);
2727 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2728 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2729 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2732 extern gfc_st_label format_asterisk;
2734 void gfc_free_open (gfc_open *);
2735 gfc_try gfc_resolve_open (gfc_open *);
2736 void gfc_free_close (gfc_close *);
2737 gfc_try gfc_resolve_close (gfc_close *);
2738 void gfc_free_filepos (gfc_filepos *);
2739 gfc_try gfc_resolve_filepos (gfc_filepos *);
2740 void gfc_free_inquire (gfc_inquire *);
2741 gfc_try gfc_resolve_inquire (gfc_inquire *);
2742 void gfc_free_dt (gfc_dt *);
2743 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2744 void gfc_free_wait (gfc_wait *);
2745 gfc_try gfc_resolve_wait (gfc_wait *);
2748 void gfc_module_init_2 (void);
2749 void gfc_module_done_2 (void);
2750 void gfc_dump_module (const char *, int);
2751 bool gfc_check_access (gfc_access, gfc_access);
2752 void gfc_free_use_stmts (gfc_use_list *);
2755 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2756 symbol_attribute gfc_expr_attr (gfc_expr *);
2757 match gfc_match_rvalue (gfc_expr **);
2758 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2759 int gfc_check_digit (char, int);
2760 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
2763 void gfc_generate_code (gfc_namespace *);
2764 void gfc_generate_module_code (gfc_namespace *);
2767 typedef int (*compare_fn) (void *, void *);
2768 void gfc_insert_bbt (void *, void *, compare_fn);
2769 void gfc_delete_bbt (void *, void *, compare_fn);
2771 /* dump-parse-tree.c */
2772 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2775 gfc_try gfc_parse_file (void);
2776 void gfc_global_used (gfc_gsymbol *, locus *);
2779 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2780 int gfc_is_data_pointer (gfc_expr *);
2783 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2785 #endif /* GCC_GFORTRAN_H */