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,
566 /************************* Structures *****************************/
568 /* Used for keeping things in balanced binary trees. */
569 #define BBT_HEADER(self) int priority; struct self *left, *right
571 #define NAMED_INTCST(a,b,c,d) a,
574 ISOFORTRANENV_INVALID = -1,
575 #include "iso-fortran-env.def"
576 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
578 iso_fortran_env_symbol;
581 #define NAMED_INTCST(a,b,c,d) a,
582 #define NAMED_REALCST(a,b,c) a,
583 #define NAMED_CMPXCST(a,b,c) a,
584 #define NAMED_LOGCST(a,b,c) a,
585 #define NAMED_CHARKNDCST(a,b,c) a,
586 #define NAMED_CHARCST(a,b,c) a,
587 #define DERIVED_TYPE(a,b,c) a,
588 #define PROCEDURE(a,b) a,
591 ISOCBINDING_INVALID = -1,
592 #include "iso-c-binding.def"
594 ISOCBINDING_NUMBER = ISOCBINDING_LAST
596 iso_c_binding_symbol;
601 #undef NAMED_CHARKNDCST
608 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
614 char name[GFC_MAX_SYMBOL_LEN + 1];
615 int value; /* Used for both integer and character values. */
620 /* Array of structs, where the structs represent the C interop kinds.
621 The list will be implemented based on a hash of the kind name since
622 these could be accessed multiple times.
623 Declared in trans-types.c as a global, since it's in that file
624 that the list is initialized. */
625 extern CInteropKind_t c_interop_kinds_table[];
628 /* Structure and list of supported extension attributes. */
631 EXT_ATTR_DLLIMPORT = 0,
636 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
644 const char *middle_end_name;
648 extern const ext_attr_t ext_attr_list[];
650 /* Symbol attribute structure. */
653 /* Variable attributes. */
654 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1,
655 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
656 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
657 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1;
659 /* For CLASS containers, the pointer attribute is sometimes set internally
660 even though it was not directly specified. In this case, keep the
661 "real" (original) value here. */
662 unsigned class_pointer:1;
664 ENUM_BITFIELD (save_state) save:2;
666 unsigned data:1, /* Symbol is named in a DATA statement. */
667 is_protected:1, /* Symbol has been marked as protected. */
668 use_assoc:1, /* Symbol has been use-associated. */
669 use_only:1, /* Symbol has been use-associated, with ONLY. */
670 use_rename:1, /* Symbol has been use-associated and renamed. */
671 imported:1; /* Symbol has been associated by IMPORT. */
673 unsigned in_namelist:1, in_common:1, in_equivalence:1;
674 unsigned function:1, subroutine:1, procedure:1;
675 unsigned generic:1, generic_copy:1;
676 unsigned implicit_type:1; /* Type defined via implicit rules. */
677 unsigned untyped:1; /* No implicit type could be found. */
679 unsigned is_bind_c:1; /* say if is bound to C. */
680 unsigned extension:8; /* extension level of a derived type. */
681 unsigned is_class:1; /* is a CLASS container. */
682 unsigned class_ok:1; /* is a CLASS object with correct attributes. */
683 unsigned vtab:1; /* is a derived type vtab. */
685 /* These flags are both in the typespec and attribute. The attribute
686 list is what gets read from/written to a module file. The typespec
687 is created from a decl being processed. */
688 unsigned is_c_interop:1; /* It's c interoperable. */
689 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
691 /* Function/subroutine attributes */
692 unsigned sequence:1, elemental:1, pure:1, recursive:1;
693 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
695 /* This is set if the subroutine doesn't return. Currently, this
696 is only possible for intrinsic subroutines. */
699 /* Set if this procedure is an alternate entry point. These procedures
700 don't have any code associated, and the backend will turn them into
701 thunks to the master function. */
704 /* Set if this is the master function for a procedure with multiple
706 unsigned entry_master:1;
708 /* Set if this is the master function for a function with multiple
709 entry points where characteristics of the entry points differ. */
710 unsigned mixed_entry_master:1;
712 /* Set if a function must always be referenced by an explicit interface. */
713 unsigned always_explicit:1;
715 /* Set if the symbol has been referenced in an expression. No further
716 modification of type or type parameters is permitted. */
717 unsigned referenced:1;
719 /* Set if this is the symbol for the main program. */
720 unsigned is_main_program:1;
722 /* Mutually exclusive multibit attributes. */
723 ENUM_BITFIELD (gfc_access) access:2;
724 ENUM_BITFIELD (sym_intent) intent:2;
725 ENUM_BITFIELD (sym_flavor) flavor:4;
726 ENUM_BITFIELD (ifsrc) if_source:2;
728 ENUM_BITFIELD (procedure_type) proc:3;
730 /* Special attributes for Cray pointers, pointees. */
731 unsigned cray_pointer:1, cray_pointee:1;
733 /* The symbol is a derived type with allocatable components, pointer
734 components or private components, procedure pointer components,
735 possibly nested. zero_comp is true if the derived type has no
737 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
738 private_comp:1, zero_comp:1, coarray_comp:1;
740 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
741 unsigned ext_attr:EXT_ATTR_NUM;
743 /* The namespace where the attribute has been set. */
744 struct gfc_namespace *volatile_ns, *asynchronous_ns;
749 /* We need to store source lines as sequences of multibyte source
750 characters. We define here a type wide enough to hold any multibyte
751 source character, just like libcpp does. A 32-bit type is enough. */
753 #if HOST_BITS_PER_INT >= 32
754 typedef unsigned int gfc_char_t;
755 #elif HOST_BITS_PER_LONG >= 32
756 typedef unsigned long gfc_char_t;
757 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
758 typedef unsigned long long gfc_char_t;
760 # error "Cannot find an integer type with at least 32 bits"
764 /* The following three structures are used to identify a location in
767 gfc_file is used to maintain a tree of the source files and how
768 they include each other
770 gfc_linebuf holds a single line of source code and information
771 which file it resides in
773 locus point to the sourceline and the character in the source
777 typedef struct gfc_file
779 struct gfc_file *next, *up;
780 int inclusion_line, line;
784 typedef struct gfc_linebuf
786 source_location location;
787 struct gfc_file *file;
788 struct gfc_linebuf *next;
796 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
798 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
806 /* In order for the "gfc" format checking to work correctly, you must
807 have declared a typedef locus first. */
808 #if GCC_VERSION >= 4001
809 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
811 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
815 /* Suppress error messages or re-enable them. */
817 void gfc_push_suppress_errors (void);
818 void gfc_pop_suppress_errors (void);
821 /* Character length structures hold the expression that gives the
822 length of a character variable. We avoid putting these into
823 gfc_typespec because doing so prevents us from doing structure
824 copies and forces us to deallocate any typespecs we create, as well
825 as structures that contain typespecs. They also can have multiple
826 character typespecs pointing to them.
828 These structures form a singly linked list within the current
829 namespace and are deallocated with the namespace. It is possible to
830 end up with gfc_charlen structures that have nothing pointing to them. */
832 typedef struct gfc_charlen
834 struct gfc_expr *length;
835 struct gfc_charlen *next;
836 bool length_from_typespec; /* Length from explicit array ctor typespec? */
838 tree passed_length; /* Length argument explicitelly passed. */
844 #define gfc_get_charlen() XCNEW (gfc_charlen)
846 /* Type specification structure. */
854 struct gfc_symbol *derived; /* For derived types only. */
855 gfc_charlen *cl; /* For character types only. */
859 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
866 /* Array specification. */
869 int rank; /* A rank of zero means that a variable is a scalar. */
871 array_type type, cotype;
872 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
874 /* These two fields are used with the Cray Pointer extension. */
875 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
876 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
877 AS_EXPLICIT, but we want to remember that we
883 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
886 /* Components of derived types. */
887 typedef struct gfc_component
892 symbol_attribute attr;
897 struct gfc_expr *initializer;
898 struct gfc_component *next;
900 /* Needed for procedure pointer components. */
901 struct gfc_formal_arglist *formal;
902 struct gfc_namespace *formal_ns;
903 struct gfc_typebound_proc *tb;
907 #define gfc_get_component() XCNEW (gfc_component)
909 /* Formal argument lists are lists of symbols. */
910 typedef struct gfc_formal_arglist
912 /* Symbol representing the argument at this position in the arglist. */
913 struct gfc_symbol *sym;
914 /* Points to the next formal argument. */
915 struct gfc_formal_arglist *next;
919 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
922 /* The gfc_actual_arglist structure is for actual arguments. */
923 typedef struct gfc_actual_arglist
926 /* Alternate return label when the expr member is null. */
927 struct gfc_st_label *label;
929 /* This is set to the type of an eventual omitted optional
930 argument. This is used to determine if a hidden string length
931 argument has to be added to a function call. */
934 struct gfc_expr *expr;
935 struct gfc_actual_arglist *next;
939 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
942 /* Because a symbol can belong to multiple namelists, they must be
943 linked externally to the symbol itself. */
944 typedef struct gfc_namelist
946 struct gfc_symbol *sym;
947 struct gfc_namelist *next;
951 #define gfc_get_namelist() XCNEW (gfc_namelist)
956 OMP_LIST_FIRSTPRIVATE,
957 OMP_LIST_LASTPRIVATE,
958 OMP_LIST_COPYPRIVATE,
962 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
974 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
978 /* Because a symbol can belong to multiple namelists, they must be
979 linked externally to the symbol itself. */
981 enum gfc_omp_sched_kind
991 enum gfc_omp_default_sharing
997 OMP_DEFAULT_FIRSTPRIVATE
1000 typedef struct gfc_omp_clauses
1002 struct gfc_expr *if_expr;
1003 struct gfc_expr *num_threads;
1004 gfc_namelist *lists[OMP_LIST_NUM];
1005 enum gfc_omp_sched_kind sched_kind;
1006 struct gfc_expr *chunk_size;
1007 enum gfc_omp_default_sharing default_sharing;
1009 bool nowait, ordered, untied;
1013 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1016 /* The gfc_st_label structure is a BBT attached to a namespace that
1017 records the usage of statement labels within that space. */
1019 typedef struct gfc_st_label
1021 BBT_HEADER(gfc_st_label);
1025 gfc_sl_type defined, referenced;
1027 struct gfc_expr *format;
1036 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1037 typedef struct gfc_interface
1039 struct gfc_symbol *sym;
1041 struct gfc_interface *next;
1045 #define gfc_get_interface() XCNEW (gfc_interface)
1047 /* User operator nodes. These are like stripped down symbols. */
1053 struct gfc_namespace *ns;
1059 /* A list of specific bindings that are associated with a generic spec. */
1060 typedef struct gfc_tbp_generic
1062 /* The parser sets specific_st, upon resolution we look for the corresponding
1063 gfc_typebound_proc and set specific for further use. */
1064 struct gfc_symtree* specific_st;
1065 struct gfc_typebound_proc* specific;
1067 struct gfc_tbp_generic* next;
1071 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1074 /* Data needed for type-bound procedures. */
1075 typedef struct gfc_typebound_proc
1077 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1081 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1082 gfc_tbp_generic* generic;
1087 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1089 /* The overridden type-bound proc (or GENERIC with this name in the
1090 parent-type) or NULL if non. */
1091 struct gfc_typebound_proc* overridden;
1093 /* Once resolved, we use the position of pass_arg in the formal arglist of
1094 the binding-target procedure to identify it. The first argument has
1095 number 1 here, the second 2, and so on. */
1096 unsigned pass_arg_num;
1098 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1099 unsigned non_overridable:1;
1100 unsigned deferred:1;
1101 unsigned is_generic:1;
1102 unsigned function:1, subroutine:1;
1103 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1109 /* Symbol nodes. These are important things. They are what the
1110 standard refers to as "entities". The possibly multiple names that
1111 refer to the same entity are accomplished by a binary tree of
1112 symtree structures that is balanced by the red-black method-- more
1113 than one symtree node can point to any given symbol. */
1115 typedef struct gfc_symbol
1117 const char *name; /* Primary name, before renaming */
1118 const char *module; /* Module this symbol came from */
1122 symbol_attribute attr;
1124 /* The formal member points to the formal argument list if the
1125 symbol is a function or subroutine name. If the symbol is a
1126 generic name, the generic member points to the list of
1129 gfc_interface *generic;
1130 gfc_access component_access;
1132 gfc_formal_arglist *formal;
1133 struct gfc_namespace *formal_ns;
1134 struct gfc_namespace *f2k_derived;
1136 struct gfc_expr *value; /* Parameter/Initializer value */
1138 struct gfc_symbol *result; /* function result symbol */
1139 gfc_component *components; /* Derived type components */
1141 /* Defined only for Cray pointees; points to their pointer. */
1142 struct gfc_symbol *cp_pointer;
1144 int entry_id; /* Used in resolve.c for entries. */
1146 /* CLASS hashed name for declared and dynamic types in the class. */
1149 struct gfc_symbol *common_next; /* Links for COMMON syms */
1151 /* This is in fact a gfc_common_head but it is only used for pointer
1152 comparisons to check if symbols are in the same common block. */
1153 struct gfc_common_head* common_head;
1155 /* Make sure setup code for dummy arguments is generated in the correct
1159 gfc_namelist *namelist, *namelist_tail;
1161 /* Change management fields. Symbols that might be modified by the
1162 current statement have the mark member nonzero and are kept in a
1163 singly linked list through the tlink field. Of these symbols,
1164 symbols with old_symbol equal to NULL are symbols created within
1165 the current statement. Otherwise, old_symbol points to a copy of
1168 struct gfc_symbol *old_symbol, *tlink;
1169 unsigned mark:1, gfc_new:1;
1170 /* Nonzero if all equivalences associated with this symbol have been
1172 unsigned equiv_built:1;
1173 /* Set if this variable is used as an index name in a FORALL. */
1174 unsigned forall_index:1;
1176 struct gfc_namespace *ns; /* namespace containing this symbol */
1180 /* Identity of the intrinsic module the symbol comes from, or
1181 INTMOD_NONE if it's not imported from a intrinsic module. */
1182 intmod_id from_intmod;
1183 /* Identity of the symbol from intrinsic modules, from enums maintained
1184 separately by each intrinsic module. Used together with from_intmod,
1185 it uniquely identifies a symbol from an intrinsic module. */
1188 /* This may be repetitive, since the typespec now has a binding
1190 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1191 /* Store a reference to the common_block, if this symbol is in one. */
1192 struct gfc_common_head *common_block;
1197 /* This structure is used to keep track of symbols in common blocks. */
1198 typedef struct gfc_common_head
1201 char use_assoc, saved, threadprivate;
1202 char name[GFC_MAX_SYMBOL_LEN + 1];
1203 struct gfc_symbol *head;
1204 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1209 #define gfc_get_common_head() XCNEW (gfc_common_head)
1212 /* A list of all the alternate entry points for a procedure. */
1214 typedef struct gfc_entry_list
1216 /* The symbol for this entry point. */
1218 /* The zero-based id of this entry point. */
1220 /* The LABEL_EXPR marking this entry point. */
1222 /* The next item in the list. */
1223 struct gfc_entry_list *next;
1227 #define gfc_get_entry_list() \
1228 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1230 /* Lists of rename info for the USE statement. */
1232 typedef struct gfc_use_rename
1234 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1235 struct gfc_use_rename *next;
1237 gfc_intrinsic_op op;
1242 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1244 /* A list of all USE statements in a namespace. */
1246 typedef struct gfc_use_list
1248 const char *module_name;
1250 struct gfc_use_rename *rename;
1252 /* Next USE statement. */
1253 struct gfc_use_list *next;
1257 #define gfc_get_use_list() \
1258 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1260 /* Within a namespace, symbols are pointed to by symtree nodes that
1261 are linked together in a balanced binary tree. There can be
1262 several symtrees pointing to the same symbol node via USE
1265 typedef struct gfc_symtree
1267 BBT_HEADER (gfc_symtree);
1272 gfc_symbol *sym; /* Symbol associated with this node */
1274 gfc_common_head *common;
1275 gfc_typebound_proc *tb;
1281 /* A linked list of derived types in the namespace. */
1282 typedef struct gfc_dt_list
1284 struct gfc_symbol *derived;
1285 struct gfc_dt_list *next;
1289 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1291 /* A list of all derived types. */
1292 extern gfc_dt_list *gfc_derived_types;
1294 /* A namespace describes the contents of procedure, module, interface block
1295 or BLOCK construct. */
1296 /* ??? Anything else use these? */
1298 typedef struct gfc_namespace
1300 /* Tree containing all the symbols in this namespace. */
1301 gfc_symtree *sym_root;
1302 /* Tree containing all the user-defined operators in the namespace. */
1303 gfc_symtree *uop_root;
1304 /* Tree containing all the common blocks. */
1305 gfc_symtree *common_root;
1307 /* Tree containing type-bound procedures. */
1308 gfc_symtree *tb_sym_root;
1309 /* Type-bound user operators. */
1310 gfc_symtree *tb_uop_root;
1311 /* For derived-types, store type-bound intrinsic operators here. */
1312 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1313 /* Linked list of finalizer procedures. */
1314 struct gfc_finalizer *finalizers;
1316 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1317 int set_flag[GFC_LETTERS];
1318 /* Keeps track of the implicit types associated with the letters. */
1319 gfc_typespec default_type[GFC_LETTERS];
1320 /* Store the positions of IMPLICIT statements. */
1321 locus implicit_loc[GFC_LETTERS];
1323 /* If this is a namespace of a procedure, this points to the procedure. */
1324 struct gfc_symbol *proc_name;
1325 /* If this is the namespace of a unit which contains executable
1326 code, this points to it. */
1327 struct gfc_code *code;
1329 /* Points to the equivalences set up in this namespace. */
1330 struct gfc_equiv *equiv;
1332 /* Points to the equivalence groups produced by trans_common. */
1333 struct gfc_equiv_list *equiv_lists;
1335 gfc_interface *op[GFC_INTRINSIC_OPS];
1337 /* Points to the parent namespace, i.e. the namespace of a module or
1338 procedure in which the procedure belonging to this namespace is
1339 contained. The parent namespace points to this namespace either
1340 directly via CONTAINED, or indirectly via the chain built by
1342 struct gfc_namespace *parent;
1343 /* CONTAINED points to the first contained namespace. Sibling
1344 namespaces are chained via SIBLING. */
1345 struct gfc_namespace *contained, *sibling;
1347 gfc_common_head blank_common;
1348 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1350 gfc_st_label *st_labels;
1351 /* This list holds information about all the data initializers in
1353 struct gfc_data *data;
1355 gfc_charlen *cl_list, *old_cl_list;
1357 gfc_dt_list *derived_types;
1359 int save_all, seen_save, seen_implicit_none;
1361 /* Normally we don't need to refcount namespaces. However when we read
1362 a module containing a function with multiple entry points, this
1363 will appear as several functions with the same formal namespace. */
1366 /* A list of all alternate entry points to this procedure (or NULL). */
1367 gfc_entry_list *entries;
1369 /* A list of USE statements in this namespace. */
1370 gfc_use_list *use_stmts;
1372 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1373 unsigned is_block_data:1;
1375 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1376 unsigned has_import_set:1;
1378 /* Set to 1 if resolved has been called for this namespace.
1379 Holds -1 during resolution. */
1382 /* Set to 1 if code has been generated for this namespace. */
1383 unsigned translated:1;
1385 /* Set to 1 if symbols in this namespace should be 'construct entities',
1386 i.e. for BLOCK local variables. */
1387 unsigned construct_entities:1;
1391 extern gfc_namespace *gfc_current_ns;
1392 extern gfc_namespace *gfc_global_ns_list;
1394 /* Global symbols are symbols of global scope. Currently we only use
1395 this to detect collisions already when parsing.
1396 TODO: Extend to verify procedure calls. */
1398 enum gfc_symbol_type
1400 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1401 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1404 typedef struct gfc_gsymbol
1406 BBT_HEADER(gfc_gsymbol);
1409 const char *sym_name;
1410 const char *mod_name;
1411 const char *binding_label;
1412 enum gfc_symbol_type type;
1420 extern gfc_gsymbol *gfc_gsym_root;
1422 /* Information on interfaces being built. */
1425 interface_type type;
1429 gfc_intrinsic_op op;
1433 extern gfc_interface_info current_interface;
1436 /* Array reference. */
1438 enum gfc_array_ref_dimen_type
1440 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN
1443 typedef struct gfc_array_ref
1446 int dimen; /* # of components in the reference */
1450 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1451 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1452 *stride[GFC_MAX_DIMENSIONS];
1454 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1456 struct gfc_expr *offset;
1460 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1463 /* Component reference nodes. A variable is stored as an expression
1464 node that points to the base symbol. After that, a singly linked
1465 list of component reference nodes gives the variable's complete
1466 resolution. The array_ref component may be present and comes
1467 before the component component. */
1470 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1473 typedef struct gfc_ref
1479 struct gfc_array_ref ar;
1483 gfc_component *component;
1490 struct gfc_expr *start, *end; /* Substring */
1491 gfc_charlen *length;
1498 struct gfc_ref *next;
1502 #define gfc_get_ref() XCNEW (gfc_ref)
1505 /* Structures representing intrinsic symbols and their arguments lists. */
1506 typedef struct gfc_intrinsic_arg
1508 char name[GFC_MAX_SYMBOL_LEN + 1];
1512 ENUM_BITFIELD (sym_intent) intent:2;
1513 gfc_actual_arglist *actual;
1515 struct gfc_intrinsic_arg *next;
1521 /* Specifies the various kinds of check functions used to verify the
1522 argument lists of intrinsic functions. fX with X an integer refer
1523 to check functions of intrinsics with X arguments. f1m is used for
1524 the MAX and MIN intrinsics which can have an arbitrary number of
1525 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1526 these have special semantics. */
1530 gfc_try (*f0)(void);
1531 gfc_try (*f1)(struct gfc_expr *);
1532 gfc_try (*f1m)(gfc_actual_arglist *);
1533 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1534 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1535 gfc_try (*f3ml)(gfc_actual_arglist *);
1536 gfc_try (*f3red)(gfc_actual_arglist *);
1537 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1539 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1540 struct gfc_expr *, struct gfc_expr *);
1544 /* Like gfc_check_f, these specify the type of the simplification
1545 function associated with an intrinsic. The fX are just like in
1546 gfc_check_f. cc is used for type conversion functions. */
1550 struct gfc_expr *(*f0)(void);
1551 struct gfc_expr *(*f1)(struct gfc_expr *);
1552 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1553 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1555 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1556 struct gfc_expr *, struct gfc_expr *);
1557 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1558 struct gfc_expr *, struct gfc_expr *,
1560 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1564 /* Again like gfc_check_f, these specify the type of the resolution
1565 function associated with an intrinsic. The fX are just like in
1566 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1570 void (*f0)(struct gfc_expr *);
1571 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1572 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1573 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1574 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1576 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1577 struct gfc_expr *, struct gfc_expr *);
1578 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1579 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1580 void (*s1)(struct gfc_code *);
1585 typedef struct gfc_intrinsic_sym
1587 const char *name, *lib_name;
1588 gfc_intrinsic_arg *formal;
1590 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1591 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1595 gfc_simplify_f simplify;
1597 gfc_resolve_f resolve;
1598 struct gfc_intrinsic_sym *specific_head, *next;
1605 typedef struct gfc_class_esym_list
1607 gfc_symbol *derived;
1609 struct gfc_expr *hash_value;
1610 struct gfc_class_esym_list *next;
1612 gfc_class_esym_list;
1614 #define gfc_get_class_esym_list() XCNEW (gfc_class_esym_list)
1616 /* Expression nodes. The expression node types deserve explanations,
1617 since the last couple can be easily misconstrued:
1619 EXPR_OP Operator node pointing to one or two other nodes
1620 EXPR_FUNCTION Function call, symbol points to function's name
1621 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1622 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1623 which expresses structure, array and substring refs.
1624 EXPR_NULL The NULL pointer value (which also has a basic type).
1625 EXPR_SUBSTRING A substring of a constant string
1626 EXPR_STRUCTURE A structure constructor
1627 EXPR_ARRAY An array constructor.
1628 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1629 component or type-bound procedure. */
1634 #define GFC_RND_MODE GMP_RNDN
1635 #define GFC_MPC_RND_MODE MPC_RNDNN
1637 typedef struct gfc_expr
1641 gfc_typespec ts; /* These two refer to the overall expression */
1644 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1646 /* Nonnull for functions and structure constructors, may also used to hold the
1647 base-object for component calls. */
1648 gfc_symtree *symtree;
1654 /* True if the expression is a call to a function that returns an array,
1655 and if we have decided not to allocate temporary data for that array.
1656 is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1657 denotes a signalling not-a-number. */
1658 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1, is_snan : 1;
1660 /* Sometimes, when an error has been emitted, it is necessary to prevent
1661 it from recurring. */
1662 unsigned int error : 1;
1664 /* Mark and expression where a user operator has been substituted by
1665 a function call in interface.c(gfc_extend_expr). */
1666 unsigned int user_operator : 1;
1668 /* Used to quickly find a given constructor by its offset. */
1669 splay_tree con_by_offset;
1671 /* If an expression comes from a Hollerith constant or compile-time
1672 evaluation of a transfer statement, it may have a prescribed target-
1673 memory representation, and these cannot always be backformed from
1696 gfc_intrinsic_op op;
1698 struct gfc_expr *op1, *op2;
1704 gfc_actual_arglist *actual;
1705 const char *name; /* Points to the ultimate name of the function */
1706 gfc_intrinsic_sym *isym;
1708 gfc_class_esym_list *class_esym;
1714 gfc_actual_arglist* actual;
1716 /* Base-object, whose component was called. NULL means that it should
1717 be taken from symtree/ref. */
1718 struct gfc_expr* base_object;
1719 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1721 /* For type-bound operators, we want to call PASS procedures but already
1722 have the full arglist; mark this, so that it is not extended by the
1724 unsigned ignore_pass:1;
1726 /* Do assign-calls rather than calls, that is appropriate dependency
1739 struct gfc_constructor *constructor;
1747 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1749 /* Structures for information associated with different kinds of
1750 numbers. The first set of integer parameters define all there is
1751 to know about a particular kind. The rest of the elements are
1752 computed from the first elements. */
1756 /* Values really representable by the target. */
1757 mpz_t huge, pedantic_min_int, min_int;
1759 int kind, radix, digits, bit_size, range;
1761 /* True if the C type of the given name maps to this precision.
1762 Note that more than one bit can be set. */
1763 unsigned int c_char : 1;
1764 unsigned int c_short : 1;
1765 unsigned int c_int : 1;
1766 unsigned int c_long : 1;
1767 unsigned int c_long_long : 1;
1771 extern gfc_integer_info gfc_integer_kinds[];
1778 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1779 unsigned int c_bool : 1;
1783 extern gfc_logical_info gfc_logical_kinds[];
1788 mpfr_t epsilon, huge, tiny, subnormal;
1789 int kind, radix, digits, min_exponent, max_exponent;
1790 int range, precision;
1792 /* The precision of the type as reported by GET_MODE_PRECISION. */
1795 /* True if the C type of the given name maps to this precision.
1796 Note that more than one bit can be set. */
1797 unsigned int c_float : 1;
1798 unsigned int c_double : 1;
1799 unsigned int c_long_double : 1;
1803 extern gfc_real_info gfc_real_kinds[];
1812 extern gfc_character_info gfc_character_kinds[];
1815 /* Equivalence structures. Equivalent lvalues are linked along the
1816 *eq pointer, equivalence sets are strung along the *next node. */
1817 typedef struct gfc_equiv
1819 struct gfc_equiv *next, *eq;
1826 #define gfc_get_equiv() XCNEW (gfc_equiv)
1828 /* Holds a single equivalence member after processing. */
1829 typedef struct gfc_equiv_info
1832 HOST_WIDE_INT offset;
1833 HOST_WIDE_INT length;
1834 struct gfc_equiv_info *next;
1837 /* Holds equivalence groups, after they have been processed. */
1838 typedef struct gfc_equiv_list
1840 gfc_equiv_info *equiv;
1841 struct gfc_equiv_list *next;
1844 /* gfc_case stores the selector list of a case statement. The *low
1845 and *high pointers can point to the same expression in the case of
1846 a single value. If *high is NULL, the selection is from *low
1847 upwards, if *low is NULL the selection is *high downwards.
1849 This structure has separate fields to allow single and double linked
1850 lists of CASEs at the same time. The singe linked list along the NEXT
1851 field is a list of cases for a single CASE label. The double linked
1852 list along the LEFT/RIGHT fields is used to detect overlap and to
1853 build a table of the cases for SELECT constructs with a CHARACTER
1856 typedef struct gfc_case
1858 /* Where we saw this case. */
1862 /* Case range values. If (low == high), it's a single value. If one of
1863 the labels is NULL, it's an unbounded case. If both are NULL, this
1864 represents the default case. */
1865 gfc_expr *low, *high;
1867 /* Only used for SELECT TYPE. */
1870 /* Next case label in the list of cases for a single CASE label. */
1871 struct gfc_case *next;
1873 /* Used for detecting overlap, and for code generation. */
1874 struct gfc_case *left, *right;
1876 /* True if this case label can never be matched. */
1881 #define gfc_get_case() XCNEW (gfc_case)
1886 gfc_expr *var, *start, *end, *step;
1890 #define gfc_get_iterator() XCNEW (gfc_iterator)
1893 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1895 typedef struct gfc_alloc
1898 struct gfc_alloc *next;
1902 #define gfc_get_alloc() XCNEW (gfc_alloc)
1907 gfc_expr *unit, *file, *status, *access, *form, *recl,
1908 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1909 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1917 gfc_expr *unit, *status, *iostat, *iomsg;
1925 gfc_expr *unit, *iostat, *iomsg;
1933 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1934 *name, *access, *sequential, *direct, *form, *formatted,
1935 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1936 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1937 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1947 gfc_expr *unit, *iostat, *iomsg, *id;
1948 gfc_st_label *err, *end, *eor;
1955 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1956 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1957 *sign, *extra_comma;
1959 gfc_symbol *namelist;
1960 /* A format_label of `format_asterisk' indicates the "*" format */
1961 gfc_st_label *format_label;
1962 gfc_st_label *err, *end, *eor;
1964 locus eor_where, end_where, err_where;
1969 typedef struct gfc_forall_iterator
1971 gfc_expr *var, *start, *end, *stride;
1972 struct gfc_forall_iterator *next;
1974 gfc_forall_iterator;
1977 /* Executable statements that fill gfc_code structures. */
1980 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
1981 EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
1982 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
1983 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1984 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK,
1985 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
1986 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE,
1987 EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
1988 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
1989 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1990 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1991 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1992 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1993 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1994 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1995 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1996 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
2000 typedef struct gfc_code
2004 struct gfc_code *block, *next;
2007 gfc_st_label *here, *label1, *label2, *label3;
2008 gfc_symtree *symtree;
2009 gfc_expr *expr1, *expr2, *expr3;
2010 /* A name isn't sufficient to identify a subroutine, we need the actual
2011 symbol for the interface definition.
2012 const char *sub_name; */
2013 gfc_symbol *resolved_sym;
2014 gfc_intrinsic_sym *resolved_isym;
2018 gfc_actual_arglist *actual;
2019 gfc_case *case_list;
2020 gfc_iterator *iterator;
2031 gfc_filepos *filepos;
2032 gfc_inquire *inquire;
2035 gfc_forall_iterator *forall_iterator;
2036 struct gfc_code *whichloop;
2038 gfc_entry_list *entry;
2039 gfc_omp_clauses *omp_clauses;
2040 const char *omp_name;
2041 gfc_namelist *omp_namelist;
2045 ext; /* Points to additional structures required by statement */
2047 /* Backend_decl is used for cycle and break labels in do loops, and
2048 probably for other constructs as well, once we translate them. */
2054 /* Storage for DATA statements. */
2055 typedef struct gfc_data_variable
2059 struct gfc_data_variable *list, *next;
2064 typedef struct gfc_data_value
2068 struct gfc_data_value *next;
2073 typedef struct gfc_data
2075 gfc_data_variable *var;
2076 gfc_data_value *value;
2079 struct gfc_data *next;
2084 /* Structure for holding compile options */
2088 gfc_source_form source_form;
2089 /* Maximum line lengths in fixed- and free-form source, respectively.
2090 When fixed_line_length or free_line_length are 0, the whole line is used,
2091 regardless of length.
2093 If the user requests a fixed_line_length <7 then gfc_init_options()
2094 emits a fatal error. */
2095 int fixed_line_length;
2096 int free_line_length;
2097 /* Maximum number of continuation lines in fixed- and free-form source,
2099 int max_continue_fixed;
2100 int max_continue_free;
2101 int max_identifier_length;
2102 int dump_parse_tree;
2106 int warn_conversion;
2107 int warn_implicit_interface;
2108 int warn_implicit_procedure;
2109 int warn_line_truncation;
2110 int warn_surprising;
2113 int warn_intrinsic_shadow;
2114 int warn_intrinsics_std;
2115 int warn_character_truncation;
2116 int warn_array_temp;
2117 int warn_align_commons;
2120 int flag_all_intrinsics;
2121 int flag_default_double;
2122 int flag_default_integer;
2123 int flag_default_real;
2125 int flag_underscoring;
2126 int flag_second_underscore;
2127 int flag_implicit_none;
2128 int flag_max_stack_var_size;
2129 int flag_max_array_constructor;
2130 int flag_range_check;
2131 int flag_pack_derived;
2132 int flag_repack_arrays;
2133 int flag_preprocessed;
2138 int flag_allow_leading_underscore;
2140 int flag_external_blas;
2141 int blas_matmul_limit;
2142 int flag_cray_pointer;
2146 int flag_module_private;
2148 int flag_init_local_zero;
2149 int flag_init_integer;
2150 int flag_init_integer_value;
2152 int flag_init_logical;
2153 int flag_init_character;
2154 char flag_init_character_value;
2155 int flag_align_commons;
2156 int flag_whole_file;
2157 int flag_protect_parens;
2166 int max_subrecord_length;
2170 extern gfc_option_t gfc_option;
2172 /* Constructor nodes for array and structure constructors. */
2173 typedef struct gfc_constructor
2176 gfc_iterator *iterator;
2178 struct gfc_constructor *next;
2181 mpz_t offset; /* Record the offset of array element which appears in
2182 data statement like "data a(5)/4/". */
2183 gfc_component *component; /* Record the component being initialized. */
2186 mpz_t repeat; /* Record the repeat number of initial values in data
2187 statement like "data a/5*10/". */
2192 typedef struct iterator_stack
2194 gfc_symtree *variable;
2196 struct iterator_stack *prev;
2199 extern iterator_stack *iter_stack;
2202 /* Used for (possibly nested) SELECT TYPE statements. */
2203 typedef struct gfc_select_type_stack
2205 gfc_symbol *selector; /* Current selector variable. */
2206 gfc_symtree *tmp; /* Current temporary variable. */
2207 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2209 gfc_select_type_stack;
2210 extern gfc_select_type_stack *select_type_stack;
2211 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2214 /* Node in the linked list used for storing finalizer procedures. */
2216 typedef struct gfc_finalizer
2218 struct gfc_finalizer* next;
2219 locus where; /* Where the FINAL declaration occurred. */
2221 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2222 symtree and later need only that. This way, we can access and call the
2223 finalizers from every context as they should be "always accessible". I
2224 don't make this a union because we need the information whether proc_sym is
2225 still referenced or not for dereferencing it on deleting a gfc_finalizer
2227 gfc_symbol* proc_sym;
2228 gfc_symtree* proc_tree;
2231 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2234 /************************ Function prototypes *************************/
2237 bool gfc_in_match_data (void);
2238 match gfc_match_char_spec (gfc_typespec *);
2241 void gfc_scanner_done_1 (void);
2242 void gfc_scanner_init_1 (void);
2244 void gfc_add_include_path (const char *, bool, bool);
2245 void gfc_add_intrinsic_modules_path (const char *);
2246 void gfc_release_include_path (void);
2247 FILE *gfc_open_included_file (const char *, bool, bool);
2248 FILE *gfc_open_intrinsic_module (const char *);
2250 int gfc_at_end (void);
2251 int gfc_at_eof (void);
2252 int gfc_at_bol (void);
2253 int gfc_at_eol (void);
2254 void gfc_advance_line (void);
2255 int gfc_check_include (void);
2256 int gfc_define_undef_line (void);
2258 int gfc_wide_is_printable (gfc_char_t);
2259 int gfc_wide_is_digit (gfc_char_t);
2260 int gfc_wide_fits_in_byte (gfc_char_t);
2261 gfc_char_t gfc_wide_tolower (gfc_char_t);
2262 gfc_char_t gfc_wide_toupper (gfc_char_t);
2263 size_t gfc_wide_strlen (const gfc_char_t *);
2264 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2265 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2266 char *gfc_widechar_to_char (const gfc_char_t *, int);
2267 gfc_char_t *gfc_char_to_widechar (const char *);
2269 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2271 void gfc_skip_comments (void);
2272 gfc_char_t gfc_next_char_literal (int);
2273 gfc_char_t gfc_next_char (void);
2274 char gfc_next_ascii_char (void);
2275 gfc_char_t gfc_peek_char (void);
2276 char gfc_peek_ascii_char (void);
2277 void gfc_error_recovery (void);
2278 void gfc_gobble_whitespace (void);
2279 gfc_try gfc_new_file (void);
2280 const char * gfc_read_orig_filename (const char *, const char **);
2282 extern gfc_source_form gfc_current_form;
2283 extern const char *gfc_source_file;
2284 extern locus gfc_current_locus;
2286 void gfc_start_source_files (void);
2287 void gfc_end_source_files (void);
2290 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2291 void gfc_free (void *);
2292 int gfc_terminal_width (void);
2293 void gfc_clear_ts (gfc_typespec *);
2294 FILE *gfc_open_file (const char *);
2295 const char *gfc_basic_typename (bt);
2296 const char *gfc_typename (gfc_typespec *);
2297 const char *gfc_op2string (gfc_intrinsic_op);
2298 const char *gfc_code2string (const mstring *, int);
2299 int gfc_string2code (const mstring *, const char *);
2300 const char *gfc_intent_string (sym_intent);
2302 void gfc_init_1 (void);
2303 void gfc_init_2 (void);
2304 void gfc_done_1 (void);
2305 void gfc_done_2 (void);
2307 int get_c_kind (const char *, CInteropKind_t *);
2310 unsigned int gfc_init_options (unsigned int, const char **);
2311 int gfc_handle_option (size_t, const char *, int);
2312 bool gfc_post_options (const char **);
2315 void gfc_maybe_initialize_eh (void);
2318 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2319 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2323 typedef struct gfc_error_buf
2326 size_t allocated, index;
2330 void gfc_error_init_1 (void);
2331 void gfc_buffer_error (int);
2333 const char *gfc_print_wide_char (gfc_char_t);
2335 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2336 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2337 void gfc_clear_warning (void);
2338 void gfc_warning_check (void);
2340 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2341 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2342 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2343 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2344 void gfc_clear_error (void);
2345 int gfc_error_check (void);
2346 int gfc_error_flag_test (void);
2348 notification gfc_notification_std (int);
2349 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2351 /* A general purpose syntax error. */
2352 #define gfc_syntax_error(ST) \
2353 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2355 void gfc_push_error (gfc_error_buf *);
2356 void gfc_pop_error (gfc_error_buf *);
2357 void gfc_free_error (gfc_error_buf *);
2359 void gfc_get_errors (int *, int *);
2360 void gfc_errors_to_warnings (int);
2363 void gfc_arith_init_1 (void);
2364 void gfc_arith_done_1 (void);
2365 arith gfc_check_integer_range (mpz_t p, int kind);
2366 bool gfc_check_character_range (gfc_char_t, int);
2369 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2370 int gfc_validate_kind (bt, int, bool);
2371 int gfc_get_int_kind_from_width_isofortranenv (int size);
2372 int gfc_get_real_kind_from_width_isofortranenv (int size);
2373 tree gfc_get_derived_type (gfc_symbol * derived);
2374 extern int gfc_index_integer_kind;
2375 extern int gfc_default_integer_kind;
2376 extern int gfc_max_integer_kind;
2377 extern int gfc_default_real_kind;
2378 extern int gfc_default_double_kind;
2379 extern int gfc_default_character_kind;
2380 extern int gfc_default_logical_kind;
2381 extern int gfc_default_complex_kind;
2382 extern int gfc_c_int_kind;
2383 extern int gfc_intio_kind;
2384 extern int gfc_charlen_int_kind;
2385 extern int gfc_numeric_storage_size;
2386 extern int gfc_character_storage_size;
2389 void gfc_clear_new_implicit (void);
2390 gfc_try gfc_add_new_implicit_range (int, int);
2391 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2392 void gfc_set_implicit_none (void);
2393 void gfc_check_function_type (gfc_namespace *);
2394 bool gfc_is_intrinsic_typename (const char *);
2396 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2397 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2399 void gfc_set_sym_referenced (gfc_symbol *);
2401 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2402 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2403 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2404 gfc_try gfc_add_codimension (symbol_attribute *, const char *, locus *);
2405 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2406 gfc_try gfc_add_external (symbol_attribute *, locus *);
2407 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2408 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2409 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2410 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2411 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2412 match gfc_mod_pointee_as (gfc_array_spec *);
2413 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2414 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2415 gfc_try gfc_add_save (symbol_attribute *, const char *, locus *);
2416 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2417 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2418 gfc_try gfc_add_target (symbol_attribute *, locus *);
2419 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2420 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2421 gfc_try gfc_add_common (symbol_attribute *, locus *);
2422 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2423 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2424 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2425 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2426 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2427 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2428 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2429 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2430 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2431 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2432 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2433 gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
2434 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2435 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2437 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2438 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2439 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2440 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2441 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2442 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2443 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2444 const char *, locus *);
2445 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2446 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2447 gfc_formal_arglist *, locus *);
2448 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2450 void gfc_clear_attr (symbol_attribute *);
2451 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2452 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2454 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2455 gfc_symbol *gfc_use_derived (gfc_symbol *);
2456 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2457 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2459 gfc_st_label *gfc_get_st_label (int);
2460 void gfc_free_st_label (gfc_st_label *);
2461 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2462 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2464 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2466 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2467 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2468 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2469 void gfc_delete_symtree (gfc_symtree **, const char *);
2470 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2471 gfc_user_op *gfc_get_uop (const char *);
2472 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2473 void gfc_free_symbol (gfc_symbol *);
2474 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2475 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2476 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2477 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2478 gfc_try verify_c_interop (gfc_typespec *);
2479 gfc_try verify_c_interop_param (gfc_symbol *);
2480 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2481 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2482 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2483 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2484 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2485 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2486 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2487 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2489 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2491 void gfc_undo_symbols (void);
2492 void gfc_commit_symbols (void);
2493 void gfc_commit_symbol (gfc_symbol *);
2494 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2495 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2496 void gfc_free_namespace (gfc_namespace *);
2498 void gfc_symbol_init_2 (void);
2499 void gfc_symbol_done_2 (void);
2501 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2502 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2503 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2504 void gfc_save_all (gfc_namespace *);
2506 void gfc_symbol_state (void);
2507 void gfc_free_dt_list (void);
2510 gfc_gsymbol *gfc_get_gsymbol (const char *);
2511 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2513 gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
2515 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
2516 gfc_typebound_proc* gfc_get_typebound_proc (void);
2517 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2518 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
2519 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
2520 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
2521 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2522 const char*, bool, locus*);
2523 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2524 const char*, bool, locus*);
2525 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2526 gfc_intrinsic_op, bool,
2528 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2530 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2531 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2532 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2534 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2536 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2539 extern int gfc_init_expr;
2541 /* Given a symbol that we have decided is intrinsic, mark it as such
2542 by placing it into a special module that is otherwise impossible to
2545 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2547 void gfc_intrinsic_init_1 (void);
2548 void gfc_intrinsic_done_1 (void);
2550 char gfc_type_letter (bt);
2551 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2552 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2553 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2554 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2555 int gfc_generic_intrinsic (const char *);
2556 int gfc_specific_intrinsic (const char *);
2557 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2558 int gfc_intrinsic_actual_ok (const char *, const bool);
2559 gfc_intrinsic_sym *gfc_find_function (const char *);
2560 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2562 match gfc_intrinsic_func_interface (gfc_expr *, int);
2563 match gfc_intrinsic_sub_interface (gfc_code *, int);
2565 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2566 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2569 /* match.c -- FIXME */
2570 void gfc_free_iterator (gfc_iterator *, int);
2571 void gfc_free_forall_iterator (gfc_forall_iterator *);
2572 void gfc_free_alloc_list (gfc_alloc *);
2573 void gfc_free_namelist (gfc_namelist *);
2574 void gfc_free_equiv (gfc_equiv *);
2575 void gfc_free_data (gfc_data *);
2576 void gfc_free_case_list (gfc_case *);
2578 /* matchexp.c -- FIXME too? */
2579 gfc_expr *gfc_get_parentheses (gfc_expr *);
2582 void gfc_free_omp_clauses (gfc_omp_clauses *);
2583 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2584 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2585 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2586 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2589 void gfc_free_actual_arglist (gfc_actual_arglist *);
2590 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2591 const char *gfc_extract_int (gfc_expr *, int *);
2592 bool is_subref_array (gfc_expr *);
2594 void gfc_add_component_ref (gfc_expr *, const char *);
2595 gfc_expr *gfc_build_conversion (gfc_expr *);
2596 void gfc_free_ref_list (gfc_ref *);
2597 void gfc_type_convert_binary (gfc_expr *, int);
2598 int gfc_is_constant_expr (gfc_expr *);
2599 gfc_try gfc_simplify_expr (gfc_expr *, int);
2600 int gfc_has_vector_index (gfc_expr *);
2602 gfc_expr *gfc_get_expr (void);
2603 void gfc_free_expr (gfc_expr *);
2604 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2605 gfc_expr *gfc_int_expr (int);
2606 gfc_expr *gfc_logical_expr (int, locus *);
2607 mpz_t *gfc_copy_shape (mpz_t *, int);
2608 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2609 gfc_expr *gfc_copy_expr (gfc_expr *);
2610 gfc_ref* gfc_copy_ref (gfc_ref*);
2612 gfc_try gfc_specification_expr (gfc_expr *);
2614 int gfc_numeric_ts (gfc_typespec *);
2615 int gfc_kind_max (gfc_expr *, gfc_expr *);
2617 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2618 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2619 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2620 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2622 gfc_expr *gfc_default_initializer (gfc_typespec *);
2623 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2625 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
2627 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2628 bool (*)(gfc_expr *, gfc_symbol *, int*),
2630 void gfc_expr_set_symbols_referenced (gfc_expr *);
2631 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2632 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2633 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2635 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2638 extern gfc_code new_st;
2640 void gfc_clear_new_st (void);
2641 gfc_code *gfc_get_code (void);
2642 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2643 void gfc_free_statement (gfc_code *);
2644 void gfc_free_statements (gfc_code *);
2647 gfc_try gfc_resolve_expr (gfc_expr *);
2648 void gfc_resolve (gfc_namespace *);
2649 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2650 int gfc_impure_variable (gfc_symbol *);
2651 int gfc_pure (gfc_symbol *);
2652 int gfc_elemental (gfc_symbol *);
2653 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2654 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2655 gfc_try gfc_resolve_index (gfc_expr *, int);
2656 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2657 int gfc_is_formal_arg (void);
2658 void gfc_resolve_substring_charlen (gfc_expr *);
2659 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2660 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2661 bool gfc_type_is_extensible (gfc_symbol *sym);
2665 void gfc_free_array_spec (gfc_array_spec *);
2666 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2668 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2669 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2670 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2672 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2674 gfc_expr *gfc_start_constructor (bt, int, locus *);
2675 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2676 void gfc_free_constructor (gfc_constructor *);
2677 void gfc_simplify_iterator_var (gfc_expr *);
2678 gfc_try gfc_expand_constructor (gfc_expr *);
2679 int gfc_constant_ac (gfc_expr *);
2680 int gfc_expanded_ac (gfc_expr *);
2681 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2682 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2683 gfc_try gfc_check_constructor_type (gfc_expr *);
2684 gfc_try gfc_check_iter_variable (gfc_expr *);
2685 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2686 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2687 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2688 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2689 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2690 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2691 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2692 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2693 gfc_constructor *gfc_get_constructor (void);
2694 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2695 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2696 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2697 int gfc_is_compile_time_shape (gfc_array_spec *);
2699 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *);
2702 /* interface.c -- FIXME: some of these should be in symbol.c */
2703 void gfc_free_interface (gfc_interface *);
2704 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2705 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2706 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2708 void gfc_check_interfaces (gfc_namespace *);
2709 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2710 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2711 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2712 gfc_actual_arglist **);
2713 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2714 void gfc_free_formal_arglist (gfc_formal_arglist *);
2715 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2716 gfc_try gfc_add_interface (gfc_symbol *);
2717 gfc_interface *gfc_current_interface_head (void);
2718 void gfc_set_current_interface_head (gfc_interface *);
2719 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2720 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2721 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2724 extern gfc_st_label format_asterisk;
2726 void gfc_free_open (gfc_open *);
2727 gfc_try gfc_resolve_open (gfc_open *);
2728 void gfc_free_close (gfc_close *);
2729 gfc_try gfc_resolve_close (gfc_close *);
2730 void gfc_free_filepos (gfc_filepos *);
2731 gfc_try gfc_resolve_filepos (gfc_filepos *);
2732 void gfc_free_inquire (gfc_inquire *);
2733 gfc_try gfc_resolve_inquire (gfc_inquire *);
2734 void gfc_free_dt (gfc_dt *);
2735 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2736 void gfc_free_wait (gfc_wait *);
2737 gfc_try gfc_resolve_wait (gfc_wait *);
2740 void gfc_module_init_2 (void);
2741 void gfc_module_done_2 (void);
2742 void gfc_dump_module (const char *, int);
2743 bool gfc_check_access (gfc_access, gfc_access);
2744 void gfc_free_use_stmts (gfc_use_list *);
2747 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2748 symbol_attribute gfc_expr_attr (gfc_expr *);
2749 match gfc_match_rvalue (gfc_expr **);
2750 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2751 int gfc_check_digit (char, int);
2752 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
2755 void gfc_generate_code (gfc_namespace *);
2756 void gfc_generate_module_code (gfc_namespace *);
2759 typedef int (*compare_fn) (void *, void *);
2760 void gfc_insert_bbt (void *, void *, compare_fn);
2761 void gfc_delete_bbt (void *, void *, compare_fn);
2763 /* dump-parse-tree.c */
2764 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2767 gfc_try gfc_parse_file (void);
2768 void gfc_global_used (gfc_gsymbol *, locus *);
2771 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2772 int gfc_is_data_pointer (gfc_expr *);
2775 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2777 #endif /* GCC_GFORTRAN_H */