1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
4 Free Software Foundation, Inc.
5 Contributed by Andy Vaught
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
23 #ifndef GCC_GFORTRAN_H
24 #define GCC_GFORTRAN_H
26 /* It's probably insane to have this large of a header file, but it
27 seemed like everything had to be recompiled anyway when a change
28 was made to a header file, and there were ordering issues with
29 multiple header files. Besides, Microsoft's winnt.h was 250k last
30 time I looked, so by comparison this is perfectly reasonable. */
32 /* Declarations common to the front-end and library are put in
33 libgfortran/libgfortran_frontend.h */
34 #include "libgfortran.h"
38 #include "coretypes.h"
40 #include "splay-tree.h"
42 /* Major control parameters. */
44 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
45 #define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */
46 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
47 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
49 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
52 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
55 #define stringize(x) expand_macro(x)
56 #define expand_macro(x) # x
58 /* For the runtime library, a standard prefix is a requirement to
59 avoid cluttering the namespace with things nobody asked for. It's
60 ugly to look at and a pain to type when you add the prefix by hand,
61 so we hide it behind a macro. */
62 #define PREFIX(x) "_gfortran_" x
65 #define BLANK_COMMON_NAME "__BLNK__"
67 /* Macro to initialize an mstring structure. */
68 #define minit(s, t) { s, NULL, t }
70 /* Structure for storing strings to be matched by gfc_match_string. */
81 /*************************** Enums *****************************/
83 /* Used when matching and resolving data I/O transfer statements. */
86 { M_READ, M_WRITE, M_PRINT, M_INQUIRE }
89 /* The author remains confused to this day about the convention of
90 returning '0' for 'SUCCESS'... or was it the other way around? The
91 following enum makes things much more readable. We also start
92 values off at one instead of zero. */
95 { SUCCESS = 1, FAILURE }
98 /* These are flags for identifying whether we are reading a character literal
99 between quotes or normal source code. */
102 { NONSTRING = 0, INSTRING_WARN, INSTRING_NOWARN }
105 /* This is returned by gfc_notification_std to know if, given the flags
106 that were given (-std=, -pedantic) we should issue an error, a warning
110 { SILENT, WARNING, ERROR }
113 /* Matchers return one of these three values. The difference between
114 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
115 successful, but that something non-syntactic is wrong and an error
116 has already been issued. */
119 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
122 /* Used for different Fortran source forms in places like scanner.c. */
124 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
127 /* Expression node types. */
129 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
130 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC
136 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
137 AS_ASSUMED_SIZE, AS_IMPLIED_SHAPE, AS_UNKNOWN
142 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
145 /* Statement label types. */
147 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
148 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
152 /* Intrinsic operators. */
154 { GFC_INTRINSIC_BEGIN = 0,
155 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
156 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
157 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
158 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
159 /* ==, /=, >, >=, <, <= */
160 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
161 INTRINSIC_LT, INTRINSIC_LE,
162 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
163 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
164 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
165 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
166 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
170 /* This macro is the number of intrinsic operators that exist.
171 Assumptions are made about the numbering of the interface_op enums. */
172 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
174 /* Arithmetic results. */
176 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
177 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT
184 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE,
185 ST_BACKSPACE, ST_BLOCK, ST_BLOCK_DATA,
186 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
187 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
188 ST_ELSEWHERE, ST_END_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA,
189 ST_ENDDO, ST_IMPLIED_ENDDO,
190 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
191 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
192 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
193 ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION,
194 ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT,
195 ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY, ST_SYNC_IMAGES,
196 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
197 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
198 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT,
199 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
200 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
201 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS,
202 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
203 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
204 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
205 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
206 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
207 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
208 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
209 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
210 ST_OMP_TASKWAIT, ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL,
211 ST_GET_FCN_CHARACTERISTICS, ST_NONE
215 /* Types of interfaces that we can have. Assignment interfaces are
216 considered to be intrinsic operators. */
219 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
220 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
224 /* Symbol flavors: these are all mutually exclusive.
225 10 elements = 4 bits. */
226 typedef enum sym_flavor
228 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
229 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
234 /* Procedure types. 7 elements = 3 bits. */
235 typedef enum procedure_type
236 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
237 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
242 typedef enum sym_intent
243 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
248 typedef enum gfc_access
249 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
253 /* Flags to keep track of where an interface came from.
254 3 elements = 2 bits. */
256 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */
257 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */
258 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement
259 with explicit interface. */
263 /* Whether a SAVE attribute was set explicitly or implicitly. */
264 typedef enum save_state
265 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
269 /* Strings for all symbol attributes. We use these for dumping the
270 parse tree, in error messages, and also when reading and writing
271 modules. In symbol.c. */
272 extern const mstring flavors[];
273 extern const mstring procedures[];
274 extern const mstring intents[];
275 extern const mstring access_types[];
276 extern const mstring ifsrc_types[];
277 extern const mstring save_status[];
279 /* Enumeration of all the generic intrinsic functions. Used by the
280 backend for identification of a function. */
284 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
285 the backend (e.g. KIND). */
320 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
321 GFC_ISYM_COMPILER_OPTIONS,
322 GFC_ISYM_COMPILER_VERSION,
333 GFC_ISYM_DATE_AND_TIME,
337 GFC_ISYM_DOT_PRODUCT,
346 GFC_ISYM_ERFC_SCALED,
348 GFC_ISYM_EXECUTE_COMMAND_LINE,
352 GFC_ISYM_EXTENDS_TYPE_OF,
369 GFC_ISYM_GET_COMMAND,
370 GFC_ISYM_GET_COMMAND_ARGUMENT,
373 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
394 GFC_ISYM_IMAGE_INDEX,
403 GFC_ISYM_IS_IOSTAT_END,
404 GFC_ISYM_IS_IOSTAT_EOR,
439 GFC_ISYM_MAXEXPONENT,
447 GFC_ISYM_MINEXPONENT,
472 GFC_ISYM_RANDOM_NUMBER,
473 GFC_ISYM_RANDOM_SEED,
481 GFC_ISYM_SAME_TYPE_AS,
487 GFC_ISYM_SET_EXPONENT,
506 GFC_ISYM_STORAGE_SIZE,
511 GFC_ISYM_SYSTEM_CLOCK,
535 typedef enum gfc_isym_id gfc_isym_id;
540 GFC_INIT_REAL_OFF = 0,
545 GFC_INIT_REAL_NEG_INF
551 GFC_INIT_LOGICAL_OFF = 0,
552 GFC_INIT_LOGICAL_FALSE,
553 GFC_INIT_LOGICAL_TRUE
559 GFC_INIT_CHARACTER_OFF = 0,
560 GFC_INIT_CHARACTER_ON
562 init_local_character;
566 GFC_INIT_INTEGER_OFF = 0,
573 GFC_FCOARRAY_NONE = 0,
588 /************************* Structures *****************************/
590 /* Used for keeping things in balanced binary trees. */
591 #define BBT_HEADER(self) int priority; struct self *left, *right
593 #define NAMED_INTCST(a,b,c,d) a,
594 #define NAMED_KINDARRAY(a,b,c,d) a,
595 #define NAMED_FUNCTION(a,b,c,d) a,
598 ISOFORTRANENV_INVALID = -1,
599 #include "iso-fortran-env.def"
600 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
602 iso_fortran_env_symbol;
604 #undef NAMED_KINDARRAY
605 #undef NAMED_FUNCTION
607 #define NAMED_INTCST(a,b,c,d) a,
608 #define NAMED_REALCST(a,b,c) a,
609 #define NAMED_CMPXCST(a,b,c) a,
610 #define NAMED_LOGCST(a,b,c) a,
611 #define NAMED_CHARKNDCST(a,b,c) a,
612 #define NAMED_CHARCST(a,b,c) a,
613 #define DERIVED_TYPE(a,b,c) a,
614 #define PROCEDURE(a,b) a,
615 #define NAMED_FUNCTION(a,b,c,d) a,
618 ISOCBINDING_INVALID = -1,
619 #include "iso-c-binding.def"
621 ISOCBINDING_NUMBER = ISOCBINDING_LAST
623 iso_c_binding_symbol;
628 #undef NAMED_CHARKNDCST
632 #undef NAMED_FUNCTION
636 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
642 char name[GFC_MAX_SYMBOL_LEN + 1];
643 int value; /* Used for both integer and character values. */
648 /* Array of structs, where the structs represent the C interop kinds.
649 The list will be implemented based on a hash of the kind name since
650 these could be accessed multiple times.
651 Declared in trans-types.c as a global, since it's in that file
652 that the list is initialized. */
653 extern CInteropKind_t c_interop_kinds_table[];
656 /* Structure and list of supported extension attributes. */
659 EXT_ATTR_DLLIMPORT = 0,
664 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
672 const char *middle_end_name;
676 extern const ext_attr_t ext_attr_list[];
678 /* Symbol attribute structure. */
681 /* Variable attributes. */
682 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1,
683 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
684 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
685 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1,
688 /* For CLASS containers, the pointer attribute is sometimes set internally
689 even though it was not directly specified. In this case, keep the
690 "real" (original) value here. */
691 unsigned class_pointer:1;
693 ENUM_BITFIELD (save_state) save:2;
695 unsigned data:1, /* Symbol is named in a DATA statement. */
696 is_protected:1, /* Symbol has been marked as protected. */
697 use_assoc:1, /* Symbol has been use-associated. */
698 use_only:1, /* Symbol has been use-associated, with ONLY. */
699 use_rename:1, /* Symbol has been use-associated and renamed. */
700 imported:1, /* Symbol has been associated by IMPORT. */
701 host_assoc:1; /* Symbol has been host associated. */
703 unsigned in_namelist:1, in_common:1, in_equivalence:1;
704 unsigned function:1, subroutine:1, procedure:1;
705 unsigned generic:1, generic_copy:1;
706 unsigned implicit_type:1; /* Type defined via implicit rules. */
707 unsigned untyped:1; /* No implicit type could be found. */
709 unsigned is_bind_c:1; /* say if is bound to C. */
710 unsigned extension:8; /* extension level of a derived type. */
711 unsigned is_class:1; /* is a CLASS container. */
712 unsigned class_ok:1; /* is a CLASS object with correct attributes. */
713 unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */
714 unsigned vtype:1; /* is a derived type of a vtab. */
716 /* These flags are both in the typespec and attribute. The attribute
717 list is what gets read from/written to a module file. The typespec
718 is created from a decl being processed. */
719 unsigned is_c_interop:1; /* It's c interoperable. */
720 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
722 /* Function/subroutine attributes */
723 unsigned sequence:1, elemental:1, pure:1, recursive:1;
724 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
726 /* This is set if a contained procedure could be declared pure. This is
727 used for certain optimizations that require the result or arguments
728 cannot alias. Note that this is zero for PURE procedures. */
729 unsigned implicit_pure:1;
731 /* This is set if the subroutine doesn't return. Currently, this
732 is only possible for intrinsic subroutines. */
735 /* Set if this procedure is an alternate entry point. These procedures
736 don't have any code associated, and the backend will turn them into
737 thunks to the master function. */
740 /* Set if this is the master function for a procedure with multiple
742 unsigned entry_master:1;
744 /* Set if this is the master function for a function with multiple
745 entry points where characteristics of the entry points differ. */
746 unsigned mixed_entry_master:1;
748 /* Set if a function must always be referenced by an explicit interface. */
749 unsigned always_explicit:1;
751 /* Set if the symbol has been referenced in an expression. No further
752 modification of type or type parameters is permitted. */
753 unsigned referenced:1;
755 /* Set if this is the symbol for the main program. */
756 unsigned is_main_program:1;
758 /* Mutually exclusive multibit attributes. */
759 ENUM_BITFIELD (gfc_access) access:2;
760 ENUM_BITFIELD (sym_intent) intent:2;
761 ENUM_BITFIELD (sym_flavor) flavor:4;
762 ENUM_BITFIELD (ifsrc) if_source:2;
764 ENUM_BITFIELD (procedure_type) proc:3;
766 /* Special attributes for Cray pointers, pointees. */
767 unsigned cray_pointer:1, cray_pointee:1;
769 /* The symbol is a derived type with allocatable components, pointer
770 components or private components, procedure pointer components,
771 possibly nested. zero_comp is true if the derived type has no
773 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
774 private_comp:1, zero_comp:1, coarray_comp:1;
776 /* This is a temporary selector for SELECT TYPE. */
777 unsigned select_type_temporary:1;
779 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
780 unsigned ext_attr:EXT_ATTR_NUM;
782 /* The namespace where the attribute has been set. */
783 struct gfc_namespace *volatile_ns, *asynchronous_ns;
788 /* We need to store source lines as sequences of multibyte source
789 characters. We define here a type wide enough to hold any multibyte
790 source character, just like libcpp does. A 32-bit type is enough. */
792 #if HOST_BITS_PER_INT >= 32
793 typedef unsigned int gfc_char_t;
794 #elif HOST_BITS_PER_LONG >= 32
795 typedef unsigned long gfc_char_t;
796 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
797 typedef unsigned long long gfc_char_t;
799 # error "Cannot find an integer type with at least 32 bits"
803 /* The following three structures are used to identify a location in
806 gfc_file is used to maintain a tree of the source files and how
807 they include each other
809 gfc_linebuf holds a single line of source code and information
810 which file it resides in
812 locus point to the sourceline and the character in the source
816 typedef struct gfc_file
818 struct gfc_file *next, *up;
819 int inclusion_line, line;
823 typedef struct gfc_linebuf
825 source_location location;
826 struct gfc_file *file;
827 struct gfc_linebuf *next;
835 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
837 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
845 /* In order for the "gfc" format checking to work correctly, you must
846 have declared a typedef locus first. */
847 #if GCC_VERSION >= 4001
848 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
850 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
854 /* Suppress error messages or re-enable them. */
856 void gfc_push_suppress_errors (void);
857 void gfc_pop_suppress_errors (void);
860 /* Character length structures hold the expression that gives the
861 length of a character variable. We avoid putting these into
862 gfc_typespec because doing so prevents us from doing structure
863 copies and forces us to deallocate any typespecs we create, as well
864 as structures that contain typespecs. They also can have multiple
865 character typespecs pointing to them.
867 These structures form a singly linked list within the current
868 namespace and are deallocated with the namespace. It is possible to
869 end up with gfc_charlen structures that have nothing pointing to them. */
871 typedef struct gfc_charlen
873 struct gfc_expr *length;
874 struct gfc_charlen *next;
875 bool length_from_typespec; /* Length from explicit array ctor typespec? */
877 tree passed_length; /* Length argument explicitly passed. */
883 #define gfc_get_charlen() XCNEW (gfc_charlen)
885 /* Type specification structure. */
893 struct gfc_symbol *derived; /* For derived types only. */
894 gfc_charlen *cl; /* For character types only. */
895 int pad; /* For hollerith types only. */
899 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
907 /* Array specification. */
910 int rank; /* A rank of zero means that a variable is a scalar. */
912 array_type type, cotype;
913 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
915 /* These two fields are used with the Cray Pointer extension. */
916 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
917 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
918 AS_EXPLICIT, but we want to remember that we
924 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
927 /* Components of derived types. */
928 typedef struct gfc_component
933 symbol_attribute attr;
937 /* Used to cache a FIELD_DECL matching this same component
938 but applied to a different backend containing type that was
939 generated by gfc_nonrestricted_type. */
940 tree norestrict_decl;
942 struct gfc_expr *initializer;
943 struct gfc_component *next;
945 /* Needed for procedure pointer components. */
946 struct gfc_formal_arglist *formal;
947 struct gfc_namespace *formal_ns;
948 struct gfc_typebound_proc *tb;
952 #define gfc_get_component() XCNEW (gfc_component)
954 /* Formal argument lists are lists of symbols. */
955 typedef struct gfc_formal_arglist
957 /* Symbol representing the argument at this position in the arglist. */
958 struct gfc_symbol *sym;
959 /* Points to the next formal argument. */
960 struct gfc_formal_arglist *next;
964 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
967 /* The gfc_actual_arglist structure is for actual arguments. */
968 typedef struct gfc_actual_arglist
971 /* Alternate return label when the expr member is null. */
972 struct gfc_st_label *label;
974 /* This is set to the type of an eventual omitted optional
975 argument. This is used to determine if a hidden string length
976 argument has to be added to a function call. */
979 struct gfc_expr *expr;
980 struct gfc_actual_arglist *next;
984 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
987 /* Because a symbol can belong to multiple namelists, they must be
988 linked externally to the symbol itself. */
989 typedef struct gfc_namelist
991 struct gfc_symbol *sym;
992 struct gfc_namelist *next;
996 #define gfc_get_namelist() XCNEW (gfc_namelist)
1001 OMP_LIST_FIRSTPRIVATE,
1002 OMP_LIST_LASTPRIVATE,
1003 OMP_LIST_COPYPRIVATE,
1007 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
1019 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
1023 /* Because a symbol can belong to multiple namelists, they must be
1024 linked externally to the symbol itself. */
1026 enum gfc_omp_sched_kind
1036 enum gfc_omp_default_sharing
1038 OMP_DEFAULT_UNKNOWN,
1040 OMP_DEFAULT_PRIVATE,
1042 OMP_DEFAULT_FIRSTPRIVATE
1045 typedef struct gfc_omp_clauses
1047 struct gfc_expr *if_expr;
1048 struct gfc_expr *num_threads;
1049 gfc_namelist *lists[OMP_LIST_NUM];
1050 enum gfc_omp_sched_kind sched_kind;
1051 struct gfc_expr *chunk_size;
1052 enum gfc_omp_default_sharing default_sharing;
1054 bool nowait, ordered, untied;
1058 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1061 /* The gfc_st_label structure is a BBT attached to a namespace that
1062 records the usage of statement labels within that space. */
1064 typedef struct gfc_st_label
1066 BBT_HEADER(gfc_st_label);
1070 gfc_sl_type defined, referenced;
1072 struct gfc_expr *format;
1081 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1082 typedef struct gfc_interface
1084 struct gfc_symbol *sym;
1086 struct gfc_interface *next;
1090 #define gfc_get_interface() XCNEW (gfc_interface)
1092 /* User operator nodes. These are like stripped down symbols. */
1098 struct gfc_namespace *ns;
1104 /* A list of specific bindings that are associated with a generic spec. */
1105 typedef struct gfc_tbp_generic
1107 /* The parser sets specific_st, upon resolution we look for the corresponding
1108 gfc_typebound_proc and set specific for further use. */
1109 struct gfc_symtree* specific_st;
1110 struct gfc_typebound_proc* specific;
1112 struct gfc_tbp_generic* next;
1116 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1119 /* Data needed for type-bound procedures. */
1120 typedef struct gfc_typebound_proc
1122 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1126 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1127 gfc_tbp_generic* generic;
1132 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1134 /* The overridden type-bound proc (or GENERIC with this name in the
1135 parent-type) or NULL if non. */
1136 struct gfc_typebound_proc* overridden;
1138 /* Once resolved, we use the position of pass_arg in the formal arglist of
1139 the binding-target procedure to identify it. The first argument has
1140 number 1 here, the second 2, and so on. */
1141 unsigned pass_arg_num;
1143 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1144 unsigned non_overridable:1;
1145 unsigned deferred:1;
1146 unsigned is_generic:1;
1147 unsigned function:1, subroutine:1;
1148 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1154 /* Symbol nodes. These are important things. They are what the
1155 standard refers to as "entities". The possibly multiple names that
1156 refer to the same entity are accomplished by a binary tree of
1157 symtree structures that is balanced by the red-black method-- more
1158 than one symtree node can point to any given symbol. */
1160 typedef struct gfc_symbol
1162 const char *name; /* Primary name, before renaming */
1163 const char *module; /* Module this symbol came from */
1167 symbol_attribute attr;
1169 /* The formal member points to the formal argument list if the
1170 symbol is a function or subroutine name. If the symbol is a
1171 generic name, the generic member points to the list of
1174 gfc_interface *generic;
1175 gfc_access component_access;
1177 gfc_formal_arglist *formal;
1178 struct gfc_namespace *formal_ns;
1179 struct gfc_namespace *f2k_derived;
1181 struct gfc_expr *value; /* Parameter/Initializer value */
1183 struct gfc_symbol *result; /* function result symbol */
1184 gfc_component *components; /* Derived type components */
1186 /* Defined only for Cray pointees; points to their pointer. */
1187 struct gfc_symbol *cp_pointer;
1189 int entry_id; /* Used in resolve.c for entries. */
1191 /* CLASS hashed name for declared and dynamic types in the class. */
1194 struct gfc_symbol *common_next; /* Links for COMMON syms */
1196 /* This is in fact a gfc_common_head but it is only used for pointer
1197 comparisons to check if symbols are in the same common block. */
1198 struct gfc_common_head* common_head;
1200 /* Make sure setup code for dummy arguments is generated in the correct
1204 gfc_namelist *namelist, *namelist_tail;
1206 /* Change management fields. Symbols that might be modified by the
1207 current statement have the mark member nonzero and are kept in a
1208 singly linked list through the tlink field. Of these symbols,
1209 symbols with old_symbol equal to NULL are symbols created within
1210 the current statement. Otherwise, old_symbol points to a copy of
1213 struct gfc_symbol *old_symbol, *tlink;
1214 unsigned mark:1, gfc_new:1;
1215 /* Nonzero if all equivalences associated with this symbol have been
1217 unsigned equiv_built:1;
1218 /* Set if this variable is used as an index name in a FORALL. */
1219 unsigned forall_index:1;
1221 struct gfc_namespace *ns; /* namespace containing this symbol */
1225 /* Identity of the intrinsic module the symbol comes from, or
1226 INTMOD_NONE if it's not imported from a intrinsic module. */
1227 intmod_id from_intmod;
1228 /* Identity of the symbol from intrinsic modules, from enums maintained
1229 separately by each intrinsic module. Used together with from_intmod,
1230 it uniquely identifies a symbol from an intrinsic module. */
1233 /* This may be repetitive, since the typespec now has a binding
1235 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1236 /* Store a reference to the common_block, if this symbol is in one. */
1237 struct gfc_common_head *common_block;
1239 /* Link to corresponding association-list if this is an associate name. */
1240 struct gfc_association_list *assoc;
1245 /* This structure is used to keep track of symbols in common blocks. */
1246 typedef struct gfc_common_head
1249 char use_assoc, saved, threadprivate;
1250 char name[GFC_MAX_SYMBOL_LEN + 1];
1251 struct gfc_symbol *head;
1252 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1257 #define gfc_get_common_head() XCNEW (gfc_common_head)
1260 /* A list of all the alternate entry points for a procedure. */
1262 typedef struct gfc_entry_list
1264 /* The symbol for this entry point. */
1266 /* The zero-based id of this entry point. */
1268 /* The LABEL_EXPR marking this entry point. */
1270 /* The next item in the list. */
1271 struct gfc_entry_list *next;
1275 #define gfc_get_entry_list() XCNEW (gfc_entry_list)
1277 /* Lists of rename info for the USE statement. */
1279 typedef struct gfc_use_rename
1281 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1282 struct gfc_use_rename *next;
1284 gfc_intrinsic_op op;
1289 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1291 /* A list of all USE statements in a namespace. */
1293 typedef struct gfc_use_list
1295 const char *module_name;
1297 struct gfc_use_rename *rename;
1299 /* Next USE statement. */
1300 struct gfc_use_list *next;
1304 #define gfc_get_use_list() XCNEW (gfc_use_list)
1306 /* Within a namespace, symbols are pointed to by symtree nodes that
1307 are linked together in a balanced binary tree. There can be
1308 several symtrees pointing to the same symbol node via USE
1311 typedef struct gfc_symtree
1313 BBT_HEADER (gfc_symtree);
1318 gfc_symbol *sym; /* Symbol associated with this node */
1320 gfc_common_head *common;
1321 gfc_typebound_proc *tb;
1327 /* A linked list of derived types in the namespace. */
1328 typedef struct gfc_dt_list
1330 struct gfc_symbol *derived;
1331 struct gfc_dt_list *next;
1335 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1337 /* A list of all derived types. */
1338 extern gfc_dt_list *gfc_derived_types;
1340 /* A namespace describes the contents of procedure, module, interface block
1341 or BLOCK construct. */
1342 /* ??? Anything else use these? */
1344 typedef struct gfc_namespace
1346 /* Tree containing all the symbols in this namespace. */
1347 gfc_symtree *sym_root;
1348 /* Tree containing all the user-defined operators in the namespace. */
1349 gfc_symtree *uop_root;
1350 /* Tree containing all the common blocks. */
1351 gfc_symtree *common_root;
1353 /* Tree containing type-bound procedures. */
1354 gfc_symtree *tb_sym_root;
1355 /* Type-bound user operators. */
1356 gfc_symtree *tb_uop_root;
1357 /* For derived-types, store type-bound intrinsic operators here. */
1358 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1359 /* Linked list of finalizer procedures. */
1360 struct gfc_finalizer *finalizers;
1362 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1363 int set_flag[GFC_LETTERS];
1364 /* Keeps track of the implicit types associated with the letters. */
1365 gfc_typespec default_type[GFC_LETTERS];
1366 /* Store the positions of IMPLICIT statements. */
1367 locus implicit_loc[GFC_LETTERS];
1369 /* If this is a namespace of a procedure, this points to the procedure. */
1370 struct gfc_symbol *proc_name;
1371 /* If this is the namespace of a unit which contains executable
1372 code, this points to it. */
1373 struct gfc_code *code;
1375 /* Points to the equivalences set up in this namespace. */
1376 struct gfc_equiv *equiv, *old_equiv;
1378 /* Points to the equivalence groups produced by trans_common. */
1379 struct gfc_equiv_list *equiv_lists;
1381 gfc_interface *op[GFC_INTRINSIC_OPS];
1383 /* Points to the parent namespace, i.e. the namespace of a module or
1384 procedure in which the procedure belonging to this namespace is
1385 contained. The parent namespace points to this namespace either
1386 directly via CONTAINED, or indirectly via the chain built by
1388 struct gfc_namespace *parent;
1389 /* CONTAINED points to the first contained namespace. Sibling
1390 namespaces are chained via SIBLING. */
1391 struct gfc_namespace *contained, *sibling;
1393 gfc_common_head blank_common;
1394 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1396 gfc_st_label *st_labels;
1397 /* This list holds information about all the data initializers in
1399 struct gfc_data *data;
1401 gfc_charlen *cl_list, *old_cl_list;
1403 gfc_dt_list *derived_types;
1405 int save_all, seen_save, seen_implicit_none;
1407 /* Normally we don't need to refcount namespaces. However when we read
1408 a module containing a function with multiple entry points, this
1409 will appear as several functions with the same formal namespace. */
1412 /* A list of all alternate entry points to this procedure (or NULL). */
1413 gfc_entry_list *entries;
1415 /* A list of USE statements in this namespace. */
1416 gfc_use_list *use_stmts;
1418 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1419 unsigned is_block_data:1;
1421 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1422 unsigned has_import_set:1;
1424 /* Set to 1 if resolved has been called for this namespace.
1425 Holds -1 during resolution. */
1428 /* Set to 1 if code has been generated for this namespace. */
1429 unsigned translated:1;
1431 /* Set to 1 if symbols in this namespace should be 'construct entities',
1432 i.e. for BLOCK local variables. */
1433 unsigned construct_entities:1;
1437 extern gfc_namespace *gfc_current_ns;
1438 extern gfc_namespace *gfc_global_ns_list;
1440 /* Global symbols are symbols of global scope. Currently we only use
1441 this to detect collisions already when parsing.
1442 TODO: Extend to verify procedure calls. */
1444 enum gfc_symbol_type
1446 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1447 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1450 typedef struct gfc_gsymbol
1452 BBT_HEADER(gfc_gsymbol);
1455 const char *sym_name;
1456 const char *mod_name;
1457 const char *binding_label;
1458 enum gfc_symbol_type type;
1466 extern gfc_gsymbol *gfc_gsym_root;
1468 /* Information on interfaces being built. */
1471 interface_type type;
1475 gfc_intrinsic_op op;
1479 extern gfc_interface_info current_interface;
1482 /* Array reference. */
1484 enum gfc_array_ref_dimen_type
1486 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_THIS_IMAGE, DIMEN_UNKNOWN
1489 typedef struct gfc_array_ref
1492 int dimen; /* # of components in the reference */
1494 bool in_allocate; /* For coarray checks. */
1498 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1499 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1500 *stride[GFC_MAX_DIMENSIONS];
1502 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1504 struct gfc_expr *offset;
1508 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1511 /* Component reference nodes. A variable is stored as an expression
1512 node that points to the base symbol. After that, a singly linked
1513 list of component reference nodes gives the variable's complete
1514 resolution. The array_ref component may be present and comes
1515 before the component component. */
1518 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1521 typedef struct gfc_ref
1527 struct gfc_array_ref ar;
1531 gfc_component *component;
1538 struct gfc_expr *start, *end; /* Substring */
1539 gfc_charlen *length;
1546 struct gfc_ref *next;
1550 #define gfc_get_ref() XCNEW (gfc_ref)
1553 /* Structures representing intrinsic symbols and their arguments lists. */
1554 typedef struct gfc_intrinsic_arg
1556 char name[GFC_MAX_SYMBOL_LEN + 1];
1559 unsigned optional:1, value:1;
1560 ENUM_BITFIELD (sym_intent) intent:2;
1561 gfc_actual_arglist *actual;
1563 struct gfc_intrinsic_arg *next;
1569 /* Specifies the various kinds of check functions used to verify the
1570 argument lists of intrinsic functions. fX with X an integer refer
1571 to check functions of intrinsics with X arguments. f1m is used for
1572 the MAX and MIN intrinsics which can have an arbitrary number of
1573 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1574 these have special semantics. */
1578 gfc_try (*f0)(void);
1579 gfc_try (*f1)(struct gfc_expr *);
1580 gfc_try (*f1m)(gfc_actual_arglist *);
1581 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1582 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1583 gfc_try (*f3ml)(gfc_actual_arglist *);
1584 gfc_try (*f3red)(gfc_actual_arglist *);
1585 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1587 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1588 struct gfc_expr *, struct gfc_expr *);
1592 /* Like gfc_check_f, these specify the type of the simplification
1593 function associated with an intrinsic. The fX are just like in
1594 gfc_check_f. cc is used for type conversion functions. */
1598 struct gfc_expr *(*f0)(void);
1599 struct gfc_expr *(*f1)(struct gfc_expr *);
1600 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1601 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1603 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1604 struct gfc_expr *, struct gfc_expr *);
1605 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1606 struct gfc_expr *, struct gfc_expr *,
1608 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1612 /* Again like gfc_check_f, these specify the type of the resolution
1613 function associated with an intrinsic. The fX are just like in
1614 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1618 void (*f0)(struct gfc_expr *);
1619 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1620 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1621 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1622 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1624 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1625 struct gfc_expr *, struct gfc_expr *);
1626 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1627 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1628 void (*s1)(struct gfc_code *);
1633 typedef struct gfc_intrinsic_sym
1635 const char *name, *lib_name;
1636 gfc_intrinsic_arg *formal;
1638 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1639 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1,
1644 gfc_simplify_f simplify;
1646 gfc_resolve_f resolve;
1647 struct gfc_intrinsic_sym *specific_head, *next;
1654 /* Expression nodes. The expression node types deserve explanations,
1655 since the last couple can be easily misconstrued:
1657 EXPR_OP Operator node pointing to one or two other nodes
1658 EXPR_FUNCTION Function call, symbol points to function's name
1659 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1660 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1661 which expresses structure, array and substring refs.
1662 EXPR_NULL The NULL pointer value (which also has a basic type).
1663 EXPR_SUBSTRING A substring of a constant string
1664 EXPR_STRUCTURE A structure constructor
1665 EXPR_ARRAY An array constructor.
1666 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1667 component or type-bound procedure. */
1672 #define GFC_RND_MODE GMP_RNDN
1673 #define GFC_MPC_RND_MODE MPC_RNDNN
1675 typedef splay_tree gfc_constructor_base;
1677 typedef struct gfc_expr
1681 gfc_typespec ts; /* These two refer to the overall expression */
1684 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1686 /* Nonnull for functions and structure constructors, may also used to hold the
1687 base-object for component calls. */
1688 gfc_symtree *symtree;
1694 /* is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1695 denotes a signalling not-a-number. */
1696 unsigned int is_boz : 1, is_snan : 1;
1698 /* Sometimes, when an error has been emitted, it is necessary to prevent
1699 it from recurring. */
1700 unsigned int error : 1;
1702 /* Mark an expression where a user operator has been substituted by
1703 a function call in interface.c(gfc_extend_expr). */
1704 unsigned int user_operator : 1;
1706 /* Mark an expression as being a MOLD argument of ALLOCATE. */
1707 unsigned int mold : 1;
1709 /* If an expression comes from a Hollerith constant or compile-time
1710 evaluation of a transfer statement, it may have a prescribed target-
1711 memory representation, and these cannot always be backformed from
1734 gfc_intrinsic_op op;
1736 struct gfc_expr *op1, *op2;
1742 gfc_actual_arglist *actual;
1743 const char *name; /* Points to the ultimate name of the function */
1744 gfc_intrinsic_sym *isym;
1751 gfc_actual_arglist* actual;
1753 /* Base-object, whose component was called. NULL means that it should
1754 be taken from symtree/ref. */
1755 struct gfc_expr* base_object;
1756 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1758 /* For type-bound operators, we want to call PASS procedures but already
1759 have the full arglist; mark this, so that it is not extended by the
1761 unsigned ignore_pass:1;
1763 /* Do assign-calls rather than calls, that is appropriate dependency
1776 gfc_constructor_base constructor;
1784 #define gfc_get_shape(rank) (XCNEWVEC (mpz_t, (rank)))
1786 /* Structures for information associated with different kinds of
1787 numbers. The first set of integer parameters define all there is
1788 to know about a particular kind. The rest of the elements are
1789 computed from the first elements. */
1793 /* Values really representable by the target. */
1794 mpz_t huge, pedantic_min_int, min_int;
1796 int kind, radix, digits, bit_size, range;
1798 /* True if the C type of the given name maps to this precision.
1799 Note that more than one bit can be set. */
1800 unsigned int c_char : 1;
1801 unsigned int c_short : 1;
1802 unsigned int c_int : 1;
1803 unsigned int c_long : 1;
1804 unsigned int c_long_long : 1;
1808 extern gfc_integer_info gfc_integer_kinds[];
1815 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1816 unsigned int c_bool : 1;
1820 extern gfc_logical_info gfc_logical_kinds[];
1825 mpfr_t epsilon, huge, tiny, subnormal;
1826 int kind, radix, digits, min_exponent, max_exponent;
1827 int range, precision;
1829 /* The precision of the type as reported by GET_MODE_PRECISION. */
1832 /* True if the C type of the given name maps to this precision.
1833 Note that more than one bit can be set. */
1834 unsigned int c_float : 1;
1835 unsigned int c_double : 1;
1836 unsigned int c_long_double : 1;
1837 unsigned int c_float128 : 1;
1841 extern gfc_real_info gfc_real_kinds[];
1850 extern gfc_character_info gfc_character_kinds[];
1853 /* Equivalence structures. Equivalent lvalues are linked along the
1854 *eq pointer, equivalence sets are strung along the *next node. */
1855 typedef struct gfc_equiv
1857 struct gfc_equiv *next, *eq;
1864 #define gfc_get_equiv() XCNEW (gfc_equiv)
1866 /* Holds a single equivalence member after processing. */
1867 typedef struct gfc_equiv_info
1870 HOST_WIDE_INT offset;
1871 HOST_WIDE_INT length;
1872 struct gfc_equiv_info *next;
1875 /* Holds equivalence groups, after they have been processed. */
1876 typedef struct gfc_equiv_list
1878 gfc_equiv_info *equiv;
1879 struct gfc_equiv_list *next;
1882 /* gfc_case stores the selector list of a case statement. The *low
1883 and *high pointers can point to the same expression in the case of
1884 a single value. If *high is NULL, the selection is from *low
1885 upwards, if *low is NULL the selection is *high downwards.
1887 This structure has separate fields to allow single and double linked
1888 lists of CASEs at the same time. The singe linked list along the NEXT
1889 field is a list of cases for a single CASE label. The double linked
1890 list along the LEFT/RIGHT fields is used to detect overlap and to
1891 build a table of the cases for SELECT constructs with a CHARACTER
1894 typedef struct gfc_case
1896 /* Where we saw this case. */
1900 /* Case range values. If (low == high), it's a single value. If one of
1901 the labels is NULL, it's an unbounded case. If both are NULL, this
1902 represents the default case. */
1903 gfc_expr *low, *high;
1905 /* Only used for SELECT TYPE. */
1908 /* Next case label in the list of cases for a single CASE label. */
1909 struct gfc_case *next;
1911 /* Used for detecting overlap, and for code generation. */
1912 struct gfc_case *left, *right;
1914 /* True if this case label can never be matched. */
1919 #define gfc_get_case() XCNEW (gfc_case)
1924 gfc_expr *var, *start, *end, *step;
1928 #define gfc_get_iterator() XCNEW (gfc_iterator)
1931 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1933 typedef struct gfc_alloc
1936 struct gfc_alloc *next;
1940 #define gfc_get_alloc() XCNEW (gfc_alloc)
1945 gfc_expr *unit, *file, *status, *access, *form, *recl,
1946 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1947 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1955 gfc_expr *unit, *status, *iostat, *iomsg;
1963 gfc_expr *unit, *iostat, *iomsg;
1971 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1972 *name, *access, *sequential, *direct, *form, *formatted,
1973 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1974 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1975 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1985 gfc_expr *unit, *iostat, *iomsg, *id;
1986 gfc_st_label *err, *end, *eor;
1993 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1994 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1995 *sign, *extra_comma, *dt_io_kind;
1997 gfc_symbol *namelist;
1998 /* A format_label of `format_asterisk' indicates the "*" format */
1999 gfc_st_label *format_label;
2000 gfc_st_label *err, *end, *eor;
2002 locus eor_where, end_where, err_where;
2007 typedef struct gfc_forall_iterator
2009 gfc_expr *var, *start, *end, *stride;
2010 struct gfc_forall_iterator *next;
2012 gfc_forall_iterator;
2015 /* Linked list to store associations in an ASSOCIATE statement. */
2017 typedef struct gfc_association_list
2019 struct gfc_association_list *next;
2021 /* Whether this is association to a variable that can be changed; otherwise,
2022 it's association to an expression and the name may not be used as
2024 unsigned variable:1;
2026 /* True if this struct is currently only linked to from a gfc_symbol rather
2027 than as part of a real list in gfc_code->ext.block.assoc. This may
2028 happen for SELECT TYPE temporaries and must be considered
2029 for memory handling. */
2030 unsigned dangling:1;
2032 char name[GFC_MAX_SYMBOL_LEN + 1];
2033 gfc_symtree *st; /* Symtree corresponding to name. */
2038 gfc_association_list;
2039 #define gfc_get_association_list() XCNEW (gfc_association_list)
2042 /* Executable statements that fill gfc_code structures. */
2045 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
2046 EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2047 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2048 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2049 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK,
2050 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
2051 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE,
2052 EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
2053 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2054 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2055 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2056 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2057 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2058 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2059 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2060 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2061 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
2065 typedef struct gfc_code
2069 struct gfc_code *block, *next;
2072 gfc_st_label *here, *label1, *label2, *label3;
2073 gfc_symtree *symtree;
2074 gfc_expr *expr1, *expr2, *expr3;
2075 /* A name isn't sufficient to identify a subroutine, we need the actual
2076 symbol for the interface definition.
2077 const char *sub_name; */
2078 gfc_symbol *resolved_sym;
2079 gfc_intrinsic_sym *resolved_isym;
2083 gfc_actual_arglist *actual;
2084 gfc_iterator *iterator;
2096 gfc_association_list *assoc;
2097 gfc_case *case_list;
2103 gfc_filepos *filepos;
2104 gfc_inquire *inquire;
2107 gfc_forall_iterator *forall_iterator;
2108 struct gfc_code *which_construct;
2110 gfc_entry_list *entry;
2111 gfc_omp_clauses *omp_clauses;
2112 const char *omp_name;
2113 gfc_namelist *omp_namelist;
2116 ext; /* Points to additional structures required by statement */
2118 /* Cycle and break labels in constructs. */
2125 /* Storage for DATA statements. */
2126 typedef struct gfc_data_variable
2130 struct gfc_data_variable *list, *next;
2135 typedef struct gfc_data_value
2139 struct gfc_data_value *next;
2144 typedef struct gfc_data
2146 gfc_data_variable *var;
2147 gfc_data_value *value;
2150 struct gfc_data *next;
2155 /* Structure for holding compile options */
2159 gfc_source_form source_form;
2160 /* Maximum line lengths in fixed- and free-form source, respectively.
2161 When fixed_line_length or free_line_length are 0, the whole line is used,
2162 regardless of length.
2164 If the user requests a fixed_line_length <7 then gfc_init_options()
2165 emits a fatal error. */
2166 int fixed_line_length;
2167 int free_line_length;
2168 /* Maximum number of continuation lines in fixed- and free-form source,
2170 int max_continue_fixed;
2171 int max_continue_free;
2172 int max_identifier_length;
2173 int dump_fortran_original;
2174 int dump_fortran_optimized;
2178 int gfc_warn_conversion;
2179 int warn_conversion_extra;
2180 int warn_function_elimination;
2181 int warn_implicit_interface;
2182 int warn_implicit_procedure;
2183 int warn_line_truncation;
2184 int warn_surprising;
2187 int warn_intrinsic_shadow;
2188 int warn_intrinsics_std;
2189 int warn_character_truncation;
2190 int warn_array_temp;
2191 int warn_align_commons;
2192 int warn_real_q_constant;
2193 int warn_unused_dummy_argument;
2196 int flag_all_intrinsics;
2197 int flag_default_double;
2198 int flag_default_integer;
2199 int flag_default_real;
2201 int flag_underscoring;
2202 int flag_second_underscore;
2203 int flag_implicit_none;
2204 int flag_max_stack_var_size;
2205 int flag_max_array_constructor;
2206 int flag_range_check;
2207 int flag_pack_derived;
2208 int flag_repack_arrays;
2209 int flag_preprocessed;
2214 int flag_allow_leading_underscore;
2216 int flag_external_blas;
2217 int blas_matmul_limit;
2218 int flag_cray_pointer;
2220 int gfc_flag_openmp;
2222 int flag_stack_arrays;
2223 int flag_module_private;
2225 int flag_init_local_zero;
2226 int flag_init_integer;
2227 int flag_init_integer_value;
2229 int flag_init_logical;
2230 int flag_init_character;
2231 char flag_init_character_value;
2232 int flag_align_commons;
2233 int flag_whole_file;
2234 int flag_protect_parens;
2235 int flag_realloc_lhs;
2236 int flag_aggressive_function_elimination;
2237 int flag_frontend_optimize;
2241 gfc_fcoarray coarray;
2247 int max_subrecord_length;
2251 extern gfc_option_t gfc_option;
2253 /* Constructor nodes for array and structure constructors. */
2254 typedef struct gfc_constructor
2256 gfc_constructor_base base;
2257 mpz_t offset; /* Offset within a constructor, used as
2261 gfc_iterator *iterator;
2266 gfc_component *component; /* Record the component being initialized. */
2273 typedef struct iterator_stack
2275 gfc_symtree *variable;
2277 struct iterator_stack *prev;
2280 extern iterator_stack *iter_stack;
2283 /* Used for (possibly nested) SELECT TYPE statements. */
2284 typedef struct gfc_select_type_stack
2286 gfc_symbol *selector; /* Current selector variable. */
2287 gfc_symtree *tmp; /* Current temporary variable. */
2288 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2290 gfc_select_type_stack;
2291 extern gfc_select_type_stack *select_type_stack;
2292 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2295 /* Node in the linked list used for storing finalizer procedures. */
2297 typedef struct gfc_finalizer
2299 struct gfc_finalizer* next;
2300 locus where; /* Where the FINAL declaration occurred. */
2302 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2303 symtree and later need only that. This way, we can access and call the
2304 finalizers from every context as they should be "always accessible". I
2305 don't make this a union because we need the information whether proc_sym is
2306 still referenced or not for dereferencing it on deleting a gfc_finalizer
2308 gfc_symbol* proc_sym;
2309 gfc_symtree* proc_tree;
2312 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2315 /************************ Function prototypes *************************/
2318 bool gfc_in_match_data (void);
2319 match gfc_match_char_spec (gfc_typespec *);
2322 void gfc_scanner_done_1 (void);
2323 void gfc_scanner_init_1 (void);
2325 void gfc_add_include_path (const char *, bool, bool);
2326 void gfc_add_intrinsic_modules_path (const char *);
2327 void gfc_release_include_path (void);
2328 FILE *gfc_open_included_file (const char *, bool, bool);
2329 FILE *gfc_open_intrinsic_module (const char *);
2331 int gfc_at_end (void);
2332 int gfc_at_eof (void);
2333 int gfc_at_bol (void);
2334 int gfc_at_eol (void);
2335 void gfc_advance_line (void);
2336 int gfc_check_include (void);
2337 int gfc_define_undef_line (void);
2339 int gfc_wide_is_printable (gfc_char_t);
2340 int gfc_wide_is_digit (gfc_char_t);
2341 int gfc_wide_fits_in_byte (gfc_char_t);
2342 gfc_char_t gfc_wide_tolower (gfc_char_t);
2343 gfc_char_t gfc_wide_toupper (gfc_char_t);
2344 size_t gfc_wide_strlen (const gfc_char_t *);
2345 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2346 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2347 char *gfc_widechar_to_char (const gfc_char_t *, int);
2348 gfc_char_t *gfc_char_to_widechar (const char *);
2350 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2352 void gfc_skip_comments (void);
2353 gfc_char_t gfc_next_char_literal (gfc_instring);
2354 gfc_char_t gfc_next_char (void);
2355 char gfc_next_ascii_char (void);
2356 gfc_char_t gfc_peek_char (void);
2357 char gfc_peek_ascii_char (void);
2358 void gfc_error_recovery (void);
2359 void gfc_gobble_whitespace (void);
2360 gfc_try gfc_new_file (void);
2361 const char * gfc_read_orig_filename (const char *, const char **);
2363 extern gfc_source_form gfc_current_form;
2364 extern const char *gfc_source_file;
2365 extern locus gfc_current_locus;
2367 void gfc_start_source_files (void);
2368 void gfc_end_source_files (void);
2371 int gfc_terminal_width (void);
2372 void gfc_clear_ts (gfc_typespec *);
2373 FILE *gfc_open_file (const char *);
2374 const char *gfc_basic_typename (bt);
2375 const char *gfc_typename (gfc_typespec *);
2376 const char *gfc_op2string (gfc_intrinsic_op);
2377 const char *gfc_code2string (const mstring *, int);
2378 int gfc_string2code (const mstring *, const char *);
2379 const char *gfc_intent_string (sym_intent);
2381 void gfc_init_1 (void);
2382 void gfc_init_2 (void);
2383 void gfc_done_1 (void);
2384 void gfc_done_2 (void);
2386 int get_c_kind (const char *, CInteropKind_t *);
2389 unsigned int gfc_option_lang_mask (void);
2390 void gfc_init_options_struct (struct gcc_options *);
2391 void gfc_init_options (unsigned int,
2392 struct cl_decoded_option *);
2393 bool gfc_handle_option (size_t, const char *, int, int, location_t,
2394 const struct cl_option_handlers *);
2395 bool gfc_post_options (const char **);
2396 char *gfc_get_option_string (void);
2399 void gfc_maybe_initialize_eh (void);
2402 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2403 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2407 typedef struct gfc_error_buf
2410 size_t allocated, index;
2414 void gfc_error_init_1 (void);
2415 void gfc_buffer_error (int);
2417 const char *gfc_print_wide_char (gfc_char_t);
2419 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2420 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2421 void gfc_clear_warning (void);
2422 void gfc_warning_check (void);
2424 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2425 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2426 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2427 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2428 void gfc_clear_error (void);
2429 int gfc_error_check (void);
2430 int gfc_error_flag_test (void);
2432 notification gfc_notification_std (int);
2433 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2435 /* A general purpose syntax error. */
2436 #define gfc_syntax_error(ST) \
2437 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2439 void gfc_push_error (gfc_error_buf *);
2440 void gfc_pop_error (gfc_error_buf *);
2441 void gfc_free_error (gfc_error_buf *);
2443 void gfc_get_errors (int *, int *);
2444 void gfc_errors_to_warnings (int);
2447 void gfc_arith_init_1 (void);
2448 void gfc_arith_done_1 (void);
2449 arith gfc_check_integer_range (mpz_t p, int kind);
2450 bool gfc_check_character_range (gfc_char_t, int);
2453 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2454 int gfc_validate_kind (bt, int, bool);
2455 int gfc_get_int_kind_from_width_isofortranenv (int size);
2456 int gfc_get_real_kind_from_width_isofortranenv (int size);
2457 tree gfc_get_derived_type (gfc_symbol * derived);
2458 extern int gfc_index_integer_kind;
2459 extern int gfc_default_integer_kind;
2460 extern int gfc_max_integer_kind;
2461 extern int gfc_default_real_kind;
2462 extern int gfc_default_double_kind;
2463 extern int gfc_default_character_kind;
2464 extern int gfc_default_logical_kind;
2465 extern int gfc_default_complex_kind;
2466 extern int gfc_c_int_kind;
2467 extern int gfc_intio_kind;
2468 extern int gfc_charlen_int_kind;
2469 extern int gfc_numeric_storage_size;
2470 extern int gfc_character_storage_size;
2473 void gfc_clear_new_implicit (void);
2474 gfc_try gfc_add_new_implicit_range (int, int);
2475 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2476 void gfc_set_implicit_none (void);
2477 void gfc_check_function_type (gfc_namespace *);
2478 bool gfc_is_intrinsic_typename (const char *);
2480 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2481 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2483 void gfc_set_sym_referenced (gfc_symbol *);
2485 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2486 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2487 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2488 gfc_try gfc_add_codimension (symbol_attribute *, const char *, locus *);
2489 gfc_try gfc_add_contiguous (symbol_attribute *, const char *, locus *);
2490 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2491 gfc_try gfc_add_external (symbol_attribute *, locus *);
2492 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2493 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2494 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2495 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2496 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2497 match gfc_mod_pointee_as (gfc_array_spec *);
2498 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2499 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2500 gfc_try gfc_add_save (symbol_attribute *, save_state, const char *, locus *);
2501 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2502 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2503 gfc_try gfc_add_target (symbol_attribute *, locus *);
2504 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2505 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2506 gfc_try gfc_add_common (symbol_attribute *, locus *);
2507 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2508 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2509 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2510 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2511 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2512 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2513 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2514 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2515 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2516 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2517 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2518 gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
2519 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2520 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2522 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2523 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2524 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2525 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2526 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2527 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2528 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2529 const char *, locus *);
2530 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2531 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2532 gfc_formal_arglist *, locus *);
2533 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2535 void gfc_clear_attr (symbol_attribute *);
2536 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2537 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2539 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2540 gfc_symbol *gfc_use_derived (gfc_symbol *);
2541 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2542 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2544 gfc_st_label *gfc_get_st_label (int);
2545 void gfc_free_st_label (gfc_st_label *);
2546 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2547 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2549 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2550 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2551 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2552 void gfc_delete_symtree (gfc_symtree **, const char *);
2553 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2554 gfc_user_op *gfc_get_uop (const char *);
2555 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2556 void gfc_free_symbol (gfc_symbol *);
2557 void gfc_release_symbol (gfc_symbol *);
2558 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2559 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *);
2560 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2561 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2562 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2563 gfc_try verify_c_interop (gfc_typespec *);
2564 gfc_try verify_c_interop_param (gfc_symbol *);
2565 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2566 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2567 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2568 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2569 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2570 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2571 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2572 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2574 void gfc_undo_symbols (void);
2575 void gfc_commit_symbols (void);
2576 void gfc_commit_symbol (gfc_symbol *);
2577 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2578 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2579 void gfc_free_namespace (gfc_namespace *);
2581 void gfc_symbol_init_2 (void);
2582 void gfc_symbol_done_2 (void);
2584 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2585 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2586 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2587 void gfc_save_all (gfc_namespace *);
2589 void gfc_enforce_clean_symbol_state (void);
2590 void gfc_free_dt_list (void);
2593 gfc_gsymbol *gfc_get_gsymbol (const char *);
2594 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2596 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
2597 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2598 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
2599 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
2600 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
2602 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2603 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2604 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2606 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2608 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2609 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*);
2611 bool gfc_is_associate_pointer (gfc_symbol*);
2613 /* intrinsic.c -- true if working in an init-expr, false otherwise. */
2614 extern bool gfc_init_expr_flag;
2616 /* Given a symbol that we have decided is intrinsic, mark it as such
2617 by placing it into a special module that is otherwise impossible to
2620 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2622 void gfc_intrinsic_init_1 (void);
2623 void gfc_intrinsic_done_1 (void);
2625 char gfc_type_letter (bt);
2626 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2627 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2628 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2629 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2630 int gfc_generic_intrinsic (const char *);
2631 int gfc_specific_intrinsic (const char *);
2632 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2633 int gfc_intrinsic_actual_ok (const char *, const bool);
2634 gfc_intrinsic_sym *gfc_find_function (const char *);
2635 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2636 gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id);
2638 match gfc_intrinsic_func_interface (gfc_expr *, int);
2639 match gfc_intrinsic_sub_interface (gfc_code *, int);
2641 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2642 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2645 /* match.c -- FIXME */
2646 void gfc_free_iterator (gfc_iterator *, int);
2647 void gfc_free_forall_iterator (gfc_forall_iterator *);
2648 void gfc_free_alloc_list (gfc_alloc *);
2649 void gfc_free_namelist (gfc_namelist *);
2650 void gfc_free_equiv (gfc_equiv *);
2651 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *);
2652 void gfc_free_data (gfc_data *);
2653 void gfc_free_case_list (gfc_case *);
2655 /* matchexp.c -- FIXME too? */
2656 gfc_expr *gfc_get_parentheses (gfc_expr *);
2659 struct gfc_omp_saved_state { void *ptrs[2]; int ints[1]; };
2660 void gfc_free_omp_clauses (gfc_omp_clauses *);
2661 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2662 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2663 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2664 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2665 void gfc_omp_save_and_clear_state (struct gfc_omp_saved_state *);
2666 void gfc_omp_restore_state (struct gfc_omp_saved_state *);
2669 void gfc_free_actual_arglist (gfc_actual_arglist *);
2670 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2671 const char *gfc_extract_int (gfc_expr *, int *);
2672 bool is_subref_array (gfc_expr *);
2673 bool gfc_is_simply_contiguous (gfc_expr *, bool);
2675 gfc_expr *gfc_build_conversion (gfc_expr *);
2676 void gfc_free_ref_list (gfc_ref *);
2677 void gfc_type_convert_binary (gfc_expr *, int);
2678 int gfc_is_constant_expr (gfc_expr *);
2679 gfc_try gfc_simplify_expr (gfc_expr *, int);
2680 int gfc_has_vector_index (gfc_expr *);
2682 gfc_expr *gfc_get_expr (void);
2683 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
2684 gfc_expr *gfc_get_null_expr (locus *);
2685 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
2686 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
2687 gfc_expr *gfc_get_constant_expr (bt, int, locus *);
2688 gfc_expr *gfc_get_character_expr (int, locus *, const char *, int len);
2689 gfc_expr *gfc_get_int_expr (int, locus *, int);
2690 gfc_expr *gfc_get_logical_expr (int, locus *, bool);
2691 gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
2693 void gfc_free_expr (gfc_expr *);
2694 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2695 mpz_t *gfc_copy_shape (mpz_t *, int);
2696 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2697 gfc_expr *gfc_copy_expr (gfc_expr *);
2698 gfc_ref* gfc_copy_ref (gfc_ref*);
2700 gfc_try gfc_specification_expr (gfc_expr *);
2702 int gfc_numeric_ts (gfc_typespec *);
2703 int gfc_kind_max (gfc_expr *, gfc_expr *);
2705 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2706 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2707 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2708 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2710 bool gfc_has_default_initializer (gfc_symbol *);
2711 gfc_expr *gfc_default_initializer (gfc_typespec *);
2712 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2713 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2715 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
2717 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2718 bool (*)(gfc_expr *, gfc_symbol *, int*),
2720 void gfc_expr_set_symbols_referenced (gfc_expr *);
2721 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2722 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2723 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2725 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2727 bool gfc_is_coindexed (gfc_expr *);
2728 bool gfc_get_corank (gfc_expr *);
2729 bool gfc_has_ultimate_allocatable (gfc_expr *);
2730 bool gfc_has_ultimate_pointer (gfc_expr *);
2732 gfc_expr* gfc_build_intrinsic_call (const char*, locus, unsigned, ...);
2733 gfc_try gfc_check_vardef_context (gfc_expr*, bool, const char*);
2737 extern gfc_code new_st;
2739 void gfc_clear_new_st (void);
2740 gfc_code *gfc_get_code (void);
2741 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2742 void gfc_free_statement (gfc_code *);
2743 void gfc_free_statements (gfc_code *);
2744 void gfc_free_association_list (gfc_association_list *);
2747 gfc_try gfc_resolve_expr (gfc_expr *);
2748 void gfc_resolve (gfc_namespace *);
2749 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2750 int gfc_impure_variable (gfc_symbol *);
2751 int gfc_pure (gfc_symbol *);
2752 int gfc_implicit_pure (gfc_symbol *);
2753 int gfc_elemental (gfc_symbol *);
2754 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2755 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2756 gfc_try gfc_resolve_index (gfc_expr *, int);
2757 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2758 int gfc_is_formal_arg (void);
2759 void gfc_resolve_substring_charlen (gfc_expr *);
2760 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2761 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2762 bool gfc_type_is_extensible (gfc_symbol *sym);
2766 gfc_iterator *gfc_copy_iterator (gfc_iterator *);
2768 void gfc_free_array_spec (gfc_array_spec *);
2769 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2771 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2772 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2773 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2775 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2777 void gfc_simplify_iterator_var (gfc_expr *);
2778 gfc_try gfc_expand_constructor (gfc_expr *, bool);
2779 int gfc_constant_ac (gfc_expr *);
2780 int gfc_expanded_ac (gfc_expr *);
2781 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2782 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2783 gfc_try gfc_check_constructor_type (gfc_expr *);
2784 gfc_try gfc_check_iter_variable (gfc_expr *);
2785 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2786 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2787 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2788 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2789 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2790 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2791 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2792 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2793 int gfc_is_compile_time_shape (gfc_array_spec *);
2795 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *);
2798 /* interface.c -- FIXME: some of these should be in symbol.c */
2799 void gfc_free_interface (gfc_interface *);
2800 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2801 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2802 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2804 void gfc_check_interfaces (gfc_namespace *);
2805 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2806 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2807 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2808 gfc_actual_arglist **);
2809 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2810 void gfc_free_formal_arglist (gfc_formal_arglist *);
2811 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2812 gfc_try gfc_add_interface (gfc_symbol *);
2813 gfc_interface *gfc_current_interface_head (void);
2814 void gfc_set_current_interface_head (gfc_interface *);
2815 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2816 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2817 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2818 int gfc_has_vector_subscript (gfc_expr*);
2821 extern gfc_st_label format_asterisk;
2823 void gfc_free_open (gfc_open *);
2824 gfc_try gfc_resolve_open (gfc_open *);
2825 void gfc_free_close (gfc_close *);
2826 gfc_try gfc_resolve_close (gfc_close *);
2827 void gfc_free_filepos (gfc_filepos *);
2828 gfc_try gfc_resolve_filepos (gfc_filepos *);
2829 void gfc_free_inquire (gfc_inquire *);
2830 gfc_try gfc_resolve_inquire (gfc_inquire *);
2831 void gfc_free_dt (gfc_dt *);
2832 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2833 void gfc_free_wait (gfc_wait *);
2834 gfc_try gfc_resolve_wait (gfc_wait *);
2837 void gfc_module_init_2 (void);
2838 void gfc_module_done_2 (void);
2839 void gfc_dump_module (const char *, int);
2840 bool gfc_check_symbol_access (gfc_symbol *);
2841 void gfc_free_use_stmts (gfc_use_list *);
2844 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2845 symbol_attribute gfc_expr_attr (gfc_expr *);
2846 match gfc_match_rvalue (gfc_expr **);
2847 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2848 int gfc_check_digit (char, int);
2849 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
2852 void gfc_generate_code (gfc_namespace *);
2853 void gfc_generate_module_code (gfc_namespace *);
2854 void gfc_init_coarray_decl (bool);
2857 typedef int (*compare_fn) (void *, void *);
2858 void gfc_insert_bbt (void *, void *, compare_fn);
2859 void gfc_delete_bbt (void *, void *, compare_fn);
2861 /* dump-parse-tree.c */
2862 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2865 gfc_try gfc_parse_file (void);
2866 void gfc_global_used (gfc_gsymbol *, locus *);
2867 gfc_namespace* gfc_build_block_ns (gfc_namespace *);
2870 int gfc_dep_compare_functions (gfc_expr *, gfc_expr *, bool);
2871 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2874 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2877 void gfc_add_component_ref (gfc_expr *, const char *);
2878 #define gfc_add_data_component(e) gfc_add_component_ref(e,"_data")
2879 #define gfc_add_vptr_component(e) gfc_add_component_ref(e,"_vptr")
2880 #define gfc_add_hash_component(e) gfc_add_component_ref(e,"_hash")
2881 #define gfc_add_size_component(e) gfc_add_component_ref(e,"_size")
2882 #define gfc_add_def_init_component(e) gfc_add_component_ref(e,"_def_init")
2883 gfc_expr *gfc_class_null_initializer (gfc_typespec *);
2884 unsigned int gfc_hash_value (gfc_symbol *);
2885 gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
2886 gfc_array_spec **, bool);
2887 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
2888 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2889 const char*, bool, locus*);
2890 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2891 const char*, bool, locus*);
2892 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2893 gfc_intrinsic_op, bool,
2895 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2897 #define CLASS_DATA(sym) sym->ts.u.derived->components
2899 /* frontend-passes.c */
2901 void gfc_run_passes (gfc_namespace *);
2903 typedef int (*walk_code_fn_t) (gfc_code **, int *, void *);
2904 typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *);
2906 int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *);
2907 int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *);
2909 #endif /* GCC_GFORTRAN_H */