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, 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;
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 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
873 /* These two fields are used with the Cray Pointer extension. */
874 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
875 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
876 AS_EXPLICIT, but we want to remember that we
882 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
885 /* Components of derived types. */
886 typedef struct gfc_component
891 symbol_attribute attr;
896 struct gfc_expr *initializer;
897 struct gfc_component *next;
899 /* Needed for procedure pointer components. */
900 struct gfc_formal_arglist *formal;
901 struct gfc_namespace *formal_ns;
902 struct gfc_typebound_proc *tb;
906 #define gfc_get_component() XCNEW (gfc_component)
908 /* Formal argument lists are lists of symbols. */
909 typedef struct gfc_formal_arglist
911 /* Symbol representing the argument at this position in the arglist. */
912 struct gfc_symbol *sym;
913 /* Points to the next formal argument. */
914 struct gfc_formal_arglist *next;
918 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
921 /* The gfc_actual_arglist structure is for actual arguments. */
922 typedef struct gfc_actual_arglist
925 /* Alternate return label when the expr member is null. */
926 struct gfc_st_label *label;
928 /* This is set to the type of an eventual omitted optional
929 argument. This is used to determine if a hidden string length
930 argument has to be added to a function call. */
933 struct gfc_expr *expr;
934 struct gfc_actual_arglist *next;
938 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
941 /* Because a symbol can belong to multiple namelists, they must be
942 linked externally to the symbol itself. */
943 typedef struct gfc_namelist
945 struct gfc_symbol *sym;
946 struct gfc_namelist *next;
950 #define gfc_get_namelist() XCNEW (gfc_namelist)
955 OMP_LIST_FIRSTPRIVATE,
956 OMP_LIST_LASTPRIVATE,
957 OMP_LIST_COPYPRIVATE,
961 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
973 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
977 /* Because a symbol can belong to multiple namelists, they must be
978 linked externally to the symbol itself. */
980 enum gfc_omp_sched_kind
990 enum gfc_omp_default_sharing
996 OMP_DEFAULT_FIRSTPRIVATE
999 typedef struct gfc_omp_clauses
1001 struct gfc_expr *if_expr;
1002 struct gfc_expr *num_threads;
1003 gfc_namelist *lists[OMP_LIST_NUM];
1004 enum gfc_omp_sched_kind sched_kind;
1005 struct gfc_expr *chunk_size;
1006 enum gfc_omp_default_sharing default_sharing;
1008 bool nowait, ordered, untied;
1012 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1015 /* The gfc_st_label structure is a BBT attached to a namespace that
1016 records the usage of statement labels within that space. */
1018 typedef struct gfc_st_label
1020 BBT_HEADER(gfc_st_label);
1024 gfc_sl_type defined, referenced;
1026 struct gfc_expr *format;
1035 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1036 typedef struct gfc_interface
1038 struct gfc_symbol *sym;
1040 struct gfc_interface *next;
1044 #define gfc_get_interface() XCNEW (gfc_interface)
1046 /* User operator nodes. These are like stripped down symbols. */
1052 struct gfc_namespace *ns;
1058 /* A list of specific bindings that are associated with a generic spec. */
1059 typedef struct gfc_tbp_generic
1061 /* The parser sets specific_st, upon resolution we look for the corresponding
1062 gfc_typebound_proc and set specific for further use. */
1063 struct gfc_symtree* specific_st;
1064 struct gfc_typebound_proc* specific;
1066 struct gfc_tbp_generic* next;
1070 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1073 /* Data needed for type-bound procedures. */
1074 typedef struct gfc_typebound_proc
1076 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1080 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1081 gfc_tbp_generic* generic;
1086 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1088 /* The overridden type-bound proc (or GENERIC with this name in the
1089 parent-type) or NULL if non. */
1090 struct gfc_typebound_proc* overridden;
1092 /* Once resolved, we use the position of pass_arg in the formal arglist of
1093 the binding-target procedure to identify it. The first argument has
1094 number 1 here, the second 2, and so on. */
1095 unsigned pass_arg_num;
1097 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1098 unsigned non_overridable:1;
1099 unsigned deferred:1;
1100 unsigned is_generic:1;
1101 unsigned function:1, subroutine:1;
1102 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1108 /* Symbol nodes. These are important things. They are what the
1109 standard refers to as "entities". The possibly multiple names that
1110 refer to the same entity are accomplished by a binary tree of
1111 symtree structures that is balanced by the red-black method-- more
1112 than one symtree node can point to any given symbol. */
1114 typedef struct gfc_symbol
1116 const char *name; /* Primary name, before renaming */
1117 const char *module; /* Module this symbol came from */
1121 symbol_attribute attr;
1123 /* The formal member points to the formal argument list if the
1124 symbol is a function or subroutine name. If the symbol is a
1125 generic name, the generic member points to the list of
1128 gfc_interface *generic;
1129 gfc_access component_access;
1131 gfc_formal_arglist *formal;
1132 struct gfc_namespace *formal_ns;
1133 struct gfc_namespace *f2k_derived;
1135 struct gfc_expr *value; /* Parameter/Initializer value */
1137 struct gfc_symbol *result; /* function result symbol */
1138 gfc_component *components; /* Derived type components */
1140 /* Defined only for Cray pointees; points to their pointer. */
1141 struct gfc_symbol *cp_pointer;
1143 int entry_id; /* Used in resolve.c for entries. */
1145 /* CLASS hashed name for declared and dynamic types in the class. */
1148 struct gfc_symbol *common_next; /* Links for COMMON syms */
1150 /* This is in fact a gfc_common_head but it is only used for pointer
1151 comparisons to check if symbols are in the same common block. */
1152 struct gfc_common_head* common_head;
1154 /* Make sure setup code for dummy arguments is generated in the correct
1158 gfc_namelist *namelist, *namelist_tail;
1160 /* Change management fields. Symbols that might be modified by the
1161 current statement have the mark member nonzero and are kept in a
1162 singly linked list through the tlink field. Of these symbols,
1163 symbols with old_symbol equal to NULL are symbols created within
1164 the current statement. Otherwise, old_symbol points to a copy of
1167 struct gfc_symbol *old_symbol, *tlink;
1168 unsigned mark:1, gfc_new:1;
1169 /* Nonzero if all equivalences associated with this symbol have been
1171 unsigned equiv_built:1;
1172 /* Set if this variable is used as an index name in a FORALL. */
1173 unsigned forall_index:1;
1175 struct gfc_namespace *ns; /* namespace containing this symbol */
1179 /* Identity of the intrinsic module the symbol comes from, or
1180 INTMOD_NONE if it's not imported from a intrinsic module. */
1181 intmod_id from_intmod;
1182 /* Identity of the symbol from intrinsic modules, from enums maintained
1183 separately by each intrinsic module. Used together with from_intmod,
1184 it uniquely identifies a symbol from an intrinsic module. */
1187 /* This may be repetitive, since the typespec now has a binding
1189 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1190 /* Store a reference to the common_block, if this symbol is in one. */
1191 struct gfc_common_head *common_block;
1196 /* This structure is used to keep track of symbols in common blocks. */
1197 typedef struct gfc_common_head
1200 char use_assoc, saved, threadprivate;
1201 char name[GFC_MAX_SYMBOL_LEN + 1];
1202 struct gfc_symbol *head;
1203 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1208 #define gfc_get_common_head() XCNEW (gfc_common_head)
1211 /* A list of all the alternate entry points for a procedure. */
1213 typedef struct gfc_entry_list
1215 /* The symbol for this entry point. */
1217 /* The zero-based id of this entry point. */
1219 /* The LABEL_EXPR marking this entry point. */
1221 /* The next item in the list. */
1222 struct gfc_entry_list *next;
1226 #define gfc_get_entry_list() \
1227 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1229 /* Lists of rename info for the USE statement. */
1231 typedef struct gfc_use_rename
1233 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1234 struct gfc_use_rename *next;
1236 gfc_intrinsic_op op;
1241 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1243 /* A list of all USE statements in a namespace. */
1245 typedef struct gfc_use_list
1247 const char *module_name;
1249 struct gfc_use_rename *rename;
1251 /* Next USE statement. */
1252 struct gfc_use_list *next;
1256 #define gfc_get_use_list() \
1257 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1259 /* Within a namespace, symbols are pointed to by symtree nodes that
1260 are linked together in a balanced binary tree. There can be
1261 several symtrees pointing to the same symbol node via USE
1264 typedef struct gfc_symtree
1266 BBT_HEADER (gfc_symtree);
1271 gfc_symbol *sym; /* Symbol associated with this node */
1273 gfc_common_head *common;
1274 gfc_typebound_proc *tb;
1280 /* A linked list of derived types in the namespace. */
1281 typedef struct gfc_dt_list
1283 struct gfc_symbol *derived;
1284 struct gfc_dt_list *next;
1288 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1290 /* A list of all derived types. */
1291 extern gfc_dt_list *gfc_derived_types;
1293 /* A namespace describes the contents of procedure, module, interface block
1294 or BLOCK construct. */
1295 /* ??? Anything else use these? */
1297 typedef struct gfc_namespace
1299 /* Tree containing all the symbols in this namespace. */
1300 gfc_symtree *sym_root;
1301 /* Tree containing all the user-defined operators in the namespace. */
1302 gfc_symtree *uop_root;
1303 /* Tree containing all the common blocks. */
1304 gfc_symtree *common_root;
1306 /* Tree containing type-bound procedures. */
1307 gfc_symtree *tb_sym_root;
1308 /* Type-bound user operators. */
1309 gfc_symtree *tb_uop_root;
1310 /* For derived-types, store type-bound intrinsic operators here. */
1311 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1312 /* Linked list of finalizer procedures. */
1313 struct gfc_finalizer *finalizers;
1315 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1316 int set_flag[GFC_LETTERS];
1317 /* Keeps track of the implicit types associated with the letters. */
1318 gfc_typespec default_type[GFC_LETTERS];
1319 /* Store the positions of IMPLICIT statements. */
1320 locus implicit_loc[GFC_LETTERS];
1322 /* If this is a namespace of a procedure, this points to the procedure. */
1323 struct gfc_symbol *proc_name;
1324 /* If this is the namespace of a unit which contains executable
1325 code, this points to it. */
1326 struct gfc_code *code;
1328 /* Points to the equivalences set up in this namespace. */
1329 struct gfc_equiv *equiv;
1331 /* Points to the equivalence groups produced by trans_common. */
1332 struct gfc_equiv_list *equiv_lists;
1334 gfc_interface *op[GFC_INTRINSIC_OPS];
1336 /* Points to the parent namespace, i.e. the namespace of a module or
1337 procedure in which the procedure belonging to this namespace is
1338 contained. The parent namespace points to this namespace either
1339 directly via CONTAINED, or indirectly via the chain built by
1341 struct gfc_namespace *parent;
1342 /* CONTAINED points to the first contained namespace. Sibling
1343 namespaces are chained via SIBLING. */
1344 struct gfc_namespace *contained, *sibling;
1346 gfc_common_head blank_common;
1347 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1349 gfc_st_label *st_labels;
1350 /* This list holds information about all the data initializers in
1352 struct gfc_data *data;
1354 gfc_charlen *cl_list, *old_cl_list;
1356 gfc_dt_list *derived_types;
1358 int save_all, seen_save, seen_implicit_none;
1360 /* Normally we don't need to refcount namespaces. However when we read
1361 a module containing a function with multiple entry points, this
1362 will appear as several functions with the same formal namespace. */
1365 /* A list of all alternate entry points to this procedure (or NULL). */
1366 gfc_entry_list *entries;
1368 /* A list of USE statements in this namespace. */
1369 gfc_use_list *use_stmts;
1371 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1372 unsigned is_block_data:1;
1374 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1375 unsigned has_import_set:1;
1377 /* Set to 1 if resolved has been called for this namespace.
1378 Holds -1 during resolution. */
1381 /* Set to 1 if code has been generated for this namespace. */
1382 unsigned translated:1;
1384 /* Set to 1 if symbols in this namespace should be 'construct entities',
1385 i.e. for BLOCK local variables. */
1386 unsigned construct_entities:1;
1390 extern gfc_namespace *gfc_current_ns;
1391 extern gfc_namespace *gfc_global_ns_list;
1393 /* Global symbols are symbols of global scope. Currently we only use
1394 this to detect collisions already when parsing.
1395 TODO: Extend to verify procedure calls. */
1397 enum gfc_symbol_type
1399 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1400 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1403 typedef struct gfc_gsymbol
1405 BBT_HEADER(gfc_gsymbol);
1408 const char *sym_name;
1409 const char *mod_name;
1410 const char *binding_label;
1411 enum gfc_symbol_type type;
1419 extern gfc_gsymbol *gfc_gsym_root;
1421 /* Information on interfaces being built. */
1424 interface_type type;
1428 gfc_intrinsic_op op;
1432 extern gfc_interface_info current_interface;
1435 /* Array reference. */
1437 enum gfc_array_ref_dimen_type
1439 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN
1442 typedef struct gfc_array_ref
1445 int dimen; /* # of components in the reference */
1449 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1450 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1451 *stride[GFC_MAX_DIMENSIONS];
1453 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1455 struct gfc_expr *offset;
1459 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1462 /* Component reference nodes. A variable is stored as an expression
1463 node that points to the base symbol. After that, a singly linked
1464 list of component reference nodes gives the variable's complete
1465 resolution. The array_ref component may be present and comes
1466 before the component component. */
1469 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1472 typedef struct gfc_ref
1478 struct gfc_array_ref ar;
1482 gfc_component *component;
1489 struct gfc_expr *start, *end; /* Substring */
1490 gfc_charlen *length;
1497 struct gfc_ref *next;
1501 #define gfc_get_ref() XCNEW (gfc_ref)
1504 /* Structures representing intrinsic symbols and their arguments lists. */
1505 typedef struct gfc_intrinsic_arg
1507 char name[GFC_MAX_SYMBOL_LEN + 1];
1511 ENUM_BITFIELD (sym_intent) intent:2;
1512 gfc_actual_arglist *actual;
1514 struct gfc_intrinsic_arg *next;
1520 /* Specifies the various kinds of check functions used to verify the
1521 argument lists of intrinsic functions. fX with X an integer refer
1522 to check functions of intrinsics with X arguments. f1m is used for
1523 the MAX and MIN intrinsics which can have an arbitrary number of
1524 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1525 these have special semantics. */
1529 gfc_try (*f0)(void);
1530 gfc_try (*f1)(struct gfc_expr *);
1531 gfc_try (*f1m)(gfc_actual_arglist *);
1532 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1533 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1534 gfc_try (*f3ml)(gfc_actual_arglist *);
1535 gfc_try (*f3red)(gfc_actual_arglist *);
1536 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1538 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1539 struct gfc_expr *, struct gfc_expr *);
1543 /* Like gfc_check_f, these specify the type of the simplification
1544 function associated with an intrinsic. The fX are just like in
1545 gfc_check_f. cc is used for type conversion functions. */
1549 struct gfc_expr *(*f0)(void);
1550 struct gfc_expr *(*f1)(struct gfc_expr *);
1551 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1552 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1554 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1555 struct gfc_expr *, struct gfc_expr *);
1556 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1557 struct gfc_expr *, struct gfc_expr *,
1559 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1563 /* Again like gfc_check_f, these specify the type of the resolution
1564 function associated with an intrinsic. The fX are just like in
1565 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1569 void (*f0)(struct gfc_expr *);
1570 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1571 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1572 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1573 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1575 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1576 struct gfc_expr *, struct gfc_expr *);
1577 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1578 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1579 void (*s1)(struct gfc_code *);
1584 typedef struct gfc_intrinsic_sym
1586 const char *name, *lib_name;
1587 gfc_intrinsic_arg *formal;
1589 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1590 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1594 gfc_simplify_f simplify;
1596 gfc_resolve_f resolve;
1597 struct gfc_intrinsic_sym *specific_head, *next;
1604 typedef struct gfc_class_esym_list
1606 gfc_symbol *derived;
1608 struct gfc_expr *hash_value;
1609 struct gfc_class_esym_list *next;
1611 gfc_class_esym_list;
1613 #define gfc_get_class_esym_list() XCNEW (gfc_class_esym_list)
1615 /* Expression nodes. The expression node types deserve explanations,
1616 since the last couple can be easily misconstrued:
1618 EXPR_OP Operator node pointing to one or two other nodes
1619 EXPR_FUNCTION Function call, symbol points to function's name
1620 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1621 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1622 which expresses structure, array and substring refs.
1623 EXPR_NULL The NULL pointer value (which also has a basic type).
1624 EXPR_SUBSTRING A substring of a constant string
1625 EXPR_STRUCTURE A structure constructor
1626 EXPR_ARRAY An array constructor.
1627 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1628 component or type-bound procedure. */
1633 #define GFC_RND_MODE GMP_RNDN
1634 #define GFC_MPC_RND_MODE MPC_RNDNN
1636 typedef struct gfc_expr
1640 gfc_typespec ts; /* These two refer to the overall expression */
1643 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1645 /* Nonnull for functions and structure constructors, may also used to hold the
1646 base-object for component calls. */
1647 gfc_symtree *symtree;
1653 /* True if the expression is a call to a function that returns an array,
1654 and if we have decided not to allocate temporary data for that array.
1655 is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1656 denotes a signalling not-a-number. */
1657 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1, is_snan : 1;
1659 /* Sometimes, when an error has been emitted, it is necessary to prevent
1660 it from recurring. */
1661 unsigned int error : 1;
1663 /* Mark and expression where a user operator has been substituted by
1664 a function call in interface.c(gfc_extend_expr). */
1665 unsigned int user_operator : 1;
1667 /* Used to quickly find a given constructor by its offset. */
1668 splay_tree con_by_offset;
1670 /* If an expression comes from a Hollerith constant or compile-time
1671 evaluation of a transfer statement, it may have a prescribed target-
1672 memory representation, and these cannot always be backformed from
1695 gfc_intrinsic_op op;
1697 struct gfc_expr *op1, *op2;
1703 gfc_actual_arglist *actual;
1704 const char *name; /* Points to the ultimate name of the function */
1705 gfc_intrinsic_sym *isym;
1707 gfc_class_esym_list *class_esym;
1713 gfc_actual_arglist* actual;
1715 /* Base-object, whose component was called. NULL means that it should
1716 be taken from symtree/ref. */
1717 struct gfc_expr* base_object;
1718 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1720 /* For type-bound operators, we want to call PASS procedures but already
1721 have the full arglist; mark this, so that it is not extended by the
1723 unsigned ignore_pass:1;
1725 /* Do assign-calls rather than calls, that is appropriate dependency
1738 struct gfc_constructor *constructor;
1746 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1748 /* Structures for information associated with different kinds of
1749 numbers. The first set of integer parameters define all there is
1750 to know about a particular kind. The rest of the elements are
1751 computed from the first elements. */
1755 /* Values really representable by the target. */
1756 mpz_t huge, pedantic_min_int, min_int;
1758 int kind, radix, digits, bit_size, range;
1760 /* True if the C type of the given name maps to this precision.
1761 Note that more than one bit can be set. */
1762 unsigned int c_char : 1;
1763 unsigned int c_short : 1;
1764 unsigned int c_int : 1;
1765 unsigned int c_long : 1;
1766 unsigned int c_long_long : 1;
1770 extern gfc_integer_info gfc_integer_kinds[];
1777 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1778 unsigned int c_bool : 1;
1782 extern gfc_logical_info gfc_logical_kinds[];
1787 mpfr_t epsilon, huge, tiny, subnormal;
1788 int kind, radix, digits, min_exponent, max_exponent;
1789 int range, precision;
1791 /* The precision of the type as reported by GET_MODE_PRECISION. */
1794 /* True if the C type of the given name maps to this precision.
1795 Note that more than one bit can be set. */
1796 unsigned int c_float : 1;
1797 unsigned int c_double : 1;
1798 unsigned int c_long_double : 1;
1802 extern gfc_real_info gfc_real_kinds[];
1811 extern gfc_character_info gfc_character_kinds[];
1814 /* Equivalence structures. Equivalent lvalues are linked along the
1815 *eq pointer, equivalence sets are strung along the *next node. */
1816 typedef struct gfc_equiv
1818 struct gfc_equiv *next, *eq;
1825 #define gfc_get_equiv() XCNEW (gfc_equiv)
1827 /* Holds a single equivalence member after processing. */
1828 typedef struct gfc_equiv_info
1831 HOST_WIDE_INT offset;
1832 HOST_WIDE_INT length;
1833 struct gfc_equiv_info *next;
1836 /* Holds equivalence groups, after they have been processed. */
1837 typedef struct gfc_equiv_list
1839 gfc_equiv_info *equiv;
1840 struct gfc_equiv_list *next;
1843 /* gfc_case stores the selector list of a case statement. The *low
1844 and *high pointers can point to the same expression in the case of
1845 a single value. If *high is NULL, the selection is from *low
1846 upwards, if *low is NULL the selection is *high downwards.
1848 This structure has separate fields to allow single and double linked
1849 lists of CASEs at the same time. The singe linked list along the NEXT
1850 field is a list of cases for a single CASE label. The double linked
1851 list along the LEFT/RIGHT fields is used to detect overlap and to
1852 build a table of the cases for SELECT constructs with a CHARACTER
1855 typedef struct gfc_case
1857 /* Where we saw this case. */
1861 /* Case range values. If (low == high), it's a single value. If one of
1862 the labels is NULL, it's an unbounded case. If both are NULL, this
1863 represents the default case. */
1864 gfc_expr *low, *high;
1866 /* Only used for SELECT TYPE. */
1869 /* Next case label in the list of cases for a single CASE label. */
1870 struct gfc_case *next;
1872 /* Used for detecting overlap, and for code generation. */
1873 struct gfc_case *left, *right;
1875 /* True if this case label can never be matched. */
1880 #define gfc_get_case() XCNEW (gfc_case)
1885 gfc_expr *var, *start, *end, *step;
1889 #define gfc_get_iterator() XCNEW (gfc_iterator)
1892 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1894 typedef struct gfc_alloc
1897 struct gfc_alloc *next;
1901 #define gfc_get_alloc() XCNEW (gfc_alloc)
1906 gfc_expr *unit, *file, *status, *access, *form, *recl,
1907 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1908 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1916 gfc_expr *unit, *status, *iostat, *iomsg;
1924 gfc_expr *unit, *iostat, *iomsg;
1932 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1933 *name, *access, *sequential, *direct, *form, *formatted,
1934 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1935 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1936 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1946 gfc_expr *unit, *iostat, *iomsg, *id;
1947 gfc_st_label *err, *end, *eor;
1954 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1955 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1956 *sign, *extra_comma;
1958 gfc_symbol *namelist;
1959 /* A format_label of `format_asterisk' indicates the "*" format */
1960 gfc_st_label *format_label;
1961 gfc_st_label *err, *end, *eor;
1963 locus eor_where, end_where, err_where;
1968 typedef struct gfc_forall_iterator
1970 gfc_expr *var, *start, *end, *stride;
1971 struct gfc_forall_iterator *next;
1973 gfc_forall_iterator;
1976 /* Executable statements that fill gfc_code structures. */
1979 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
1980 EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
1981 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
1982 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1983 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK,
1984 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
1985 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE,
1986 EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
1987 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
1988 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1989 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1990 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1991 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1992 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1993 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1994 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1995 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
1999 typedef struct gfc_code
2003 struct gfc_code *block, *next;
2006 gfc_st_label *here, *label1, *label2, *label3;
2007 gfc_symtree *symtree;
2008 gfc_expr *expr1, *expr2, *expr3;
2009 /* A name isn't sufficient to identify a subroutine, we need the actual
2010 symbol for the interface definition.
2011 const char *sub_name; */
2012 gfc_symbol *resolved_sym;
2013 gfc_intrinsic_sym *resolved_isym;
2017 gfc_actual_arglist *actual;
2018 gfc_case *case_list;
2019 gfc_iterator *iterator;
2030 gfc_filepos *filepos;
2031 gfc_inquire *inquire;
2034 gfc_forall_iterator *forall_iterator;
2035 struct gfc_code *whichloop;
2037 gfc_entry_list *entry;
2038 gfc_omp_clauses *omp_clauses;
2039 const char *omp_name;
2040 gfc_namelist *omp_namelist;
2044 ext; /* Points to additional structures required by statement */
2046 /* Backend_decl is used for cycle and break labels in do loops, and
2047 probably for other constructs as well, once we translate them. */
2053 /* Storage for DATA statements. */
2054 typedef struct gfc_data_variable
2058 struct gfc_data_variable *list, *next;
2063 typedef struct gfc_data_value
2067 struct gfc_data_value *next;
2072 typedef struct gfc_data
2074 gfc_data_variable *var;
2075 gfc_data_value *value;
2078 struct gfc_data *next;
2083 /* Structure for holding compile options */
2087 gfc_source_form source_form;
2088 /* Maximum line lengths in fixed- and free-form source, respectively.
2089 When fixed_line_length or free_line_length are 0, the whole line is used,
2090 regardless of length.
2092 If the user requests a fixed_line_length <7 then gfc_init_options()
2093 emits a fatal error. */
2094 int fixed_line_length;
2095 int free_line_length;
2096 /* Maximum number of continuation lines in fixed- and free-form source,
2098 int max_continue_fixed;
2099 int max_continue_free;
2100 int max_identifier_length;
2101 int dump_parse_tree;
2105 int warn_conversion;
2106 int warn_implicit_interface;
2107 int warn_implicit_procedure;
2108 int warn_line_truncation;
2109 int warn_surprising;
2112 int warn_intrinsic_shadow;
2113 int warn_intrinsics_std;
2114 int warn_character_truncation;
2115 int warn_array_temp;
2116 int warn_align_commons;
2119 int flag_all_intrinsics;
2120 int flag_default_double;
2121 int flag_default_integer;
2122 int flag_default_real;
2124 int flag_underscoring;
2125 int flag_second_underscore;
2126 int flag_implicit_none;
2127 int flag_max_stack_var_size;
2128 int flag_max_array_constructor;
2129 int flag_range_check;
2130 int flag_pack_derived;
2131 int flag_repack_arrays;
2132 int flag_preprocessed;
2137 int flag_allow_leading_underscore;
2139 int flag_external_blas;
2140 int blas_matmul_limit;
2141 int flag_cray_pointer;
2145 int flag_module_private;
2147 int flag_init_local_zero;
2148 int flag_init_integer;
2149 int flag_init_integer_value;
2151 int flag_init_logical;
2152 int flag_init_character;
2153 char flag_init_character_value;
2154 int flag_align_commons;
2155 int flag_whole_file;
2156 int flag_protect_parens;
2165 int max_subrecord_length;
2169 extern gfc_option_t gfc_option;
2171 /* Constructor nodes for array and structure constructors. */
2172 typedef struct gfc_constructor
2175 gfc_iterator *iterator;
2177 struct gfc_constructor *next;
2180 mpz_t offset; /* Record the offset of array element which appears in
2181 data statement like "data a(5)/4/". */
2182 gfc_component *component; /* Record the component being initialized. */
2185 mpz_t repeat; /* Record the repeat number of initial values in data
2186 statement like "data a/5*10/". */
2191 typedef struct iterator_stack
2193 gfc_symtree *variable;
2195 struct iterator_stack *prev;
2198 extern iterator_stack *iter_stack;
2201 /* Used for (possibly nested) SELECT TYPE statements. */
2202 typedef struct gfc_select_type_stack
2204 gfc_symbol *selector; /* Current selector variable. */
2205 gfc_symtree *tmp; /* Current temporary variable. */
2206 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2208 gfc_select_type_stack;
2209 extern gfc_select_type_stack *select_type_stack;
2210 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2213 /* Node in the linked list used for storing finalizer procedures. */
2215 typedef struct gfc_finalizer
2217 struct gfc_finalizer* next;
2218 locus where; /* Where the FINAL declaration occurred. */
2220 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2221 symtree and later need only that. This way, we can access and call the
2222 finalizers from every context as they should be "always accessible". I
2223 don't make this a union because we need the information whether proc_sym is
2224 still referenced or not for dereferencing it on deleting a gfc_finalizer
2226 gfc_symbol* proc_sym;
2227 gfc_symtree* proc_tree;
2230 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2233 /************************ Function prototypes *************************/
2236 bool gfc_in_match_data (void);
2237 match gfc_match_char_spec (gfc_typespec *);
2240 void gfc_scanner_done_1 (void);
2241 void gfc_scanner_init_1 (void);
2243 void gfc_add_include_path (const char *, bool, bool);
2244 void gfc_add_intrinsic_modules_path (const char *);
2245 void gfc_release_include_path (void);
2246 FILE *gfc_open_included_file (const char *, bool, bool);
2247 FILE *gfc_open_intrinsic_module (const char *);
2249 int gfc_at_end (void);
2250 int gfc_at_eof (void);
2251 int gfc_at_bol (void);
2252 int gfc_at_eol (void);
2253 void gfc_advance_line (void);
2254 int gfc_check_include (void);
2255 int gfc_define_undef_line (void);
2257 int gfc_wide_is_printable (gfc_char_t);
2258 int gfc_wide_is_digit (gfc_char_t);
2259 int gfc_wide_fits_in_byte (gfc_char_t);
2260 gfc_char_t gfc_wide_tolower (gfc_char_t);
2261 gfc_char_t gfc_wide_toupper (gfc_char_t);
2262 size_t gfc_wide_strlen (const gfc_char_t *);
2263 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2264 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2265 char *gfc_widechar_to_char (const gfc_char_t *, int);
2266 gfc_char_t *gfc_char_to_widechar (const char *);
2268 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2270 void gfc_skip_comments (void);
2271 gfc_char_t gfc_next_char_literal (int);
2272 gfc_char_t gfc_next_char (void);
2273 char gfc_next_ascii_char (void);
2274 gfc_char_t gfc_peek_char (void);
2275 char gfc_peek_ascii_char (void);
2276 void gfc_error_recovery (void);
2277 void gfc_gobble_whitespace (void);
2278 gfc_try gfc_new_file (void);
2279 const char * gfc_read_orig_filename (const char *, const char **);
2281 extern gfc_source_form gfc_current_form;
2282 extern const char *gfc_source_file;
2283 extern locus gfc_current_locus;
2285 void gfc_start_source_files (void);
2286 void gfc_end_source_files (void);
2289 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2290 void gfc_free (void *);
2291 int gfc_terminal_width (void);
2292 void gfc_clear_ts (gfc_typespec *);
2293 FILE *gfc_open_file (const char *);
2294 const char *gfc_basic_typename (bt);
2295 const char *gfc_typename (gfc_typespec *);
2296 const char *gfc_op2string (gfc_intrinsic_op);
2297 const char *gfc_code2string (const mstring *, int);
2298 int gfc_string2code (const mstring *, const char *);
2299 const char *gfc_intent_string (sym_intent);
2301 void gfc_init_1 (void);
2302 void gfc_init_2 (void);
2303 void gfc_done_1 (void);
2304 void gfc_done_2 (void);
2306 int get_c_kind (const char *, CInteropKind_t *);
2309 unsigned int gfc_init_options (unsigned int, const char **);
2310 int gfc_handle_option (size_t, const char *, int);
2311 bool gfc_post_options (const char **);
2314 void gfc_maybe_initialize_eh (void);
2317 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2318 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2322 typedef struct gfc_error_buf
2325 size_t allocated, index;
2329 void gfc_error_init_1 (void);
2330 void gfc_buffer_error (int);
2332 const char *gfc_print_wide_char (gfc_char_t);
2334 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2335 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2336 void gfc_clear_warning (void);
2337 void gfc_warning_check (void);
2339 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2340 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2341 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2342 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2343 void gfc_clear_error (void);
2344 int gfc_error_check (void);
2345 int gfc_error_flag_test (void);
2347 notification gfc_notification_std (int);
2348 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2350 /* A general purpose syntax error. */
2351 #define gfc_syntax_error(ST) \
2352 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2354 void gfc_push_error (gfc_error_buf *);
2355 void gfc_pop_error (gfc_error_buf *);
2356 void gfc_free_error (gfc_error_buf *);
2358 void gfc_get_errors (int *, int *);
2359 void gfc_errors_to_warnings (int);
2362 void gfc_arith_init_1 (void);
2363 void gfc_arith_done_1 (void);
2364 arith gfc_check_integer_range (mpz_t p, int kind);
2365 bool gfc_check_character_range (gfc_char_t, int);
2368 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2369 int gfc_validate_kind (bt, int, bool);
2370 int gfc_get_int_kind_from_width_isofortranenv (int size);
2371 int gfc_get_real_kind_from_width_isofortranenv (int size);
2372 tree gfc_get_derived_type (gfc_symbol * derived);
2373 extern int gfc_index_integer_kind;
2374 extern int gfc_default_integer_kind;
2375 extern int gfc_max_integer_kind;
2376 extern int gfc_default_real_kind;
2377 extern int gfc_default_double_kind;
2378 extern int gfc_default_character_kind;
2379 extern int gfc_default_logical_kind;
2380 extern int gfc_default_complex_kind;
2381 extern int gfc_c_int_kind;
2382 extern int gfc_intio_kind;
2383 extern int gfc_charlen_int_kind;
2384 extern int gfc_numeric_storage_size;
2385 extern int gfc_character_storage_size;
2388 void gfc_clear_new_implicit (void);
2389 gfc_try gfc_add_new_implicit_range (int, int);
2390 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2391 void gfc_set_implicit_none (void);
2392 void gfc_check_function_type (gfc_namespace *);
2393 bool gfc_is_intrinsic_typename (const char *);
2395 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2396 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2398 void gfc_set_sym_referenced (gfc_symbol *);
2400 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2401 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2402 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2403 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2404 gfc_try gfc_add_external (symbol_attribute *, locus *);
2405 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2406 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2407 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2408 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2409 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2410 match gfc_mod_pointee_as (gfc_array_spec *);
2411 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2412 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2413 gfc_try gfc_add_save (symbol_attribute *, const char *, locus *);
2414 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2415 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2416 gfc_try gfc_add_target (symbol_attribute *, locus *);
2417 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2418 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2419 gfc_try gfc_add_common (symbol_attribute *, locus *);
2420 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2421 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2422 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2423 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2424 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2425 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2426 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2427 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2428 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2429 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2430 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2431 gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
2432 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2433 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2435 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2436 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2437 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2438 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2439 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2440 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2441 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2442 const char *, locus *);
2443 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2444 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2445 gfc_formal_arglist *, locus *);
2446 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2448 void gfc_clear_attr (symbol_attribute *);
2449 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2450 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2452 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2453 gfc_symbol *gfc_use_derived (gfc_symbol *);
2454 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2455 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2457 gfc_st_label *gfc_get_st_label (int);
2458 void gfc_free_st_label (gfc_st_label *);
2459 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2460 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2462 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2464 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2465 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2466 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2467 void gfc_delete_symtree (gfc_symtree **, const char *);
2468 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2469 gfc_user_op *gfc_get_uop (const char *);
2470 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2471 void gfc_free_symbol (gfc_symbol *);
2472 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2473 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2474 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2475 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2476 gfc_try verify_c_interop (gfc_typespec *);
2477 gfc_try verify_c_interop_param (gfc_symbol *);
2478 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2479 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2480 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2481 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2482 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2483 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2484 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2485 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2487 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2489 void gfc_undo_symbols (void);
2490 void gfc_commit_symbols (void);
2491 void gfc_commit_symbol (gfc_symbol *);
2492 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2493 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2494 void gfc_free_namespace (gfc_namespace *);
2496 void gfc_symbol_init_2 (void);
2497 void gfc_symbol_done_2 (void);
2499 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2500 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2501 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2502 void gfc_save_all (gfc_namespace *);
2504 void gfc_symbol_state (void);
2505 void gfc_free_dt_list (void);
2508 gfc_gsymbol *gfc_get_gsymbol (const char *);
2509 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2511 gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
2513 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
2514 gfc_typebound_proc* gfc_get_typebound_proc (void);
2515 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2516 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
2517 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
2518 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
2519 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2520 const char*, bool, locus*);
2521 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2522 const char*, bool, locus*);
2523 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2524 gfc_intrinsic_op, bool,
2526 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2528 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2529 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2530 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2532 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2534 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2537 extern int gfc_init_expr;
2539 /* Given a symbol that we have decided is intrinsic, mark it as such
2540 by placing it into a special module that is otherwise impossible to
2543 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2545 void gfc_intrinsic_init_1 (void);
2546 void gfc_intrinsic_done_1 (void);
2548 char gfc_type_letter (bt);
2549 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2550 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2551 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2552 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2553 int gfc_generic_intrinsic (const char *);
2554 int gfc_specific_intrinsic (const char *);
2555 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2556 int gfc_intrinsic_actual_ok (const char *, const bool);
2557 gfc_intrinsic_sym *gfc_find_function (const char *);
2558 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2560 match gfc_intrinsic_func_interface (gfc_expr *, int);
2561 match gfc_intrinsic_sub_interface (gfc_code *, int);
2563 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2564 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2567 /* match.c -- FIXME */
2568 void gfc_free_iterator (gfc_iterator *, int);
2569 void gfc_free_forall_iterator (gfc_forall_iterator *);
2570 void gfc_free_alloc_list (gfc_alloc *);
2571 void gfc_free_namelist (gfc_namelist *);
2572 void gfc_free_equiv (gfc_equiv *);
2573 void gfc_free_data (gfc_data *);
2574 void gfc_free_case_list (gfc_case *);
2576 /* matchexp.c -- FIXME too? */
2577 gfc_expr *gfc_get_parentheses (gfc_expr *);
2580 void gfc_free_omp_clauses (gfc_omp_clauses *);
2581 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2582 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2583 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2584 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2587 void gfc_free_actual_arglist (gfc_actual_arglist *);
2588 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2589 const char *gfc_extract_int (gfc_expr *, int *);
2590 bool is_subref_array (gfc_expr *);
2592 void gfc_add_component_ref (gfc_expr *, const char *);
2593 gfc_expr *gfc_build_conversion (gfc_expr *);
2594 void gfc_free_ref_list (gfc_ref *);
2595 void gfc_type_convert_binary (gfc_expr *, int);
2596 int gfc_is_constant_expr (gfc_expr *);
2597 gfc_try gfc_simplify_expr (gfc_expr *, int);
2598 int gfc_has_vector_index (gfc_expr *);
2600 gfc_expr *gfc_get_expr (void);
2601 void gfc_free_expr (gfc_expr *);
2602 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2603 gfc_expr *gfc_int_expr (int);
2604 gfc_expr *gfc_logical_expr (int, locus *);
2605 mpz_t *gfc_copy_shape (mpz_t *, int);
2606 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2607 gfc_expr *gfc_copy_expr (gfc_expr *);
2608 gfc_ref* gfc_copy_ref (gfc_ref*);
2610 gfc_try gfc_specification_expr (gfc_expr *);
2612 int gfc_numeric_ts (gfc_typespec *);
2613 int gfc_kind_max (gfc_expr *, gfc_expr *);
2615 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2616 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2617 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2618 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2620 gfc_expr *gfc_default_initializer (gfc_typespec *);
2621 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2623 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
2625 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2626 bool (*)(gfc_expr *, gfc_symbol *, int*),
2628 void gfc_expr_set_symbols_referenced (gfc_expr *);
2629 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2630 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2631 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2633 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2636 extern gfc_code new_st;
2638 void gfc_clear_new_st (void);
2639 gfc_code *gfc_get_code (void);
2640 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2641 void gfc_free_statement (gfc_code *);
2642 void gfc_free_statements (gfc_code *);
2645 gfc_try gfc_resolve_expr (gfc_expr *);
2646 void gfc_resolve (gfc_namespace *);
2647 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2648 int gfc_impure_variable (gfc_symbol *);
2649 int gfc_pure (gfc_symbol *);
2650 int gfc_elemental (gfc_symbol *);
2651 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2652 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2653 gfc_try gfc_resolve_index (gfc_expr *, int);
2654 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2655 int gfc_is_formal_arg (void);
2656 void gfc_resolve_substring_charlen (gfc_expr *);
2657 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2658 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2659 bool gfc_type_is_extensible (gfc_symbol *sym);
2663 void gfc_free_array_spec (gfc_array_spec *);
2664 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2666 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2667 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2668 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2670 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2672 gfc_expr *gfc_start_constructor (bt, int, locus *);
2673 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2674 void gfc_free_constructor (gfc_constructor *);
2675 void gfc_simplify_iterator_var (gfc_expr *);
2676 gfc_try gfc_expand_constructor (gfc_expr *);
2677 int gfc_constant_ac (gfc_expr *);
2678 int gfc_expanded_ac (gfc_expr *);
2679 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2680 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2681 gfc_try gfc_check_constructor_type (gfc_expr *);
2682 gfc_try gfc_check_iter_variable (gfc_expr *);
2683 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2684 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2685 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2686 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2687 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2688 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2689 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2690 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2691 gfc_constructor *gfc_get_constructor (void);
2692 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2693 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2694 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2695 int gfc_is_compile_time_shape (gfc_array_spec *);
2697 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *);
2700 /* interface.c -- FIXME: some of these should be in symbol.c */
2701 void gfc_free_interface (gfc_interface *);
2702 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2703 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2704 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2706 void gfc_check_interfaces (gfc_namespace *);
2707 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2708 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2709 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2710 gfc_actual_arglist **);
2711 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2712 void gfc_free_formal_arglist (gfc_formal_arglist *);
2713 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2714 gfc_try gfc_add_interface (gfc_symbol *);
2715 gfc_interface *gfc_current_interface_head (void);
2716 void gfc_set_current_interface_head (gfc_interface *);
2717 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2718 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2719 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2722 extern gfc_st_label format_asterisk;
2724 void gfc_free_open (gfc_open *);
2725 gfc_try gfc_resolve_open (gfc_open *);
2726 void gfc_free_close (gfc_close *);
2727 gfc_try gfc_resolve_close (gfc_close *);
2728 void gfc_free_filepos (gfc_filepos *);
2729 gfc_try gfc_resolve_filepos (gfc_filepos *);
2730 void gfc_free_inquire (gfc_inquire *);
2731 gfc_try gfc_resolve_inquire (gfc_inquire *);
2732 void gfc_free_dt (gfc_dt *);
2733 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2734 void gfc_free_wait (gfc_wait *);
2735 gfc_try gfc_resolve_wait (gfc_wait *);
2738 void gfc_module_init_2 (void);
2739 void gfc_module_done_2 (void);
2740 void gfc_dump_module (const char *, int);
2741 bool gfc_check_access (gfc_access, gfc_access);
2742 void gfc_free_use_stmts (gfc_use_list *);
2745 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2746 symbol_attribute gfc_expr_attr (gfc_expr *);
2747 match gfc_match_rvalue (gfc_expr **);
2748 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2749 int gfc_check_digit (char, int);
2750 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
2753 void gfc_generate_code (gfc_namespace *);
2754 void gfc_generate_module_code (gfc_namespace *);
2757 typedef int (*compare_fn) (void *, void *);
2758 void gfc_insert_bbt (void *, void *, compare_fn);
2759 void gfc_delete_bbt (void *, void *, compare_fn);
2761 /* dump-parse-tree.c */
2762 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2765 gfc_try gfc_parse_file (void);
2766 void gfc_global_used (gfc_gsymbol *, locus *);
2769 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2770 int gfc_is_data_pointer (gfc_expr *);
2773 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2775 #endif /* GCC_GFORTRAN_H */