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 free(x) Use_gfc_free_instead_of_free()
53 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
56 #define stringize(x) expand_macro(x)
57 #define expand_macro(x) # x
59 /* For the runtime library, a standard prefix is a requirement to
60 avoid cluttering the namespace with things nobody asked for. It's
61 ugly to look at and a pain to type when you add the prefix by hand,
62 so we hide it behind a macro. */
63 #define PREFIX(x) "_gfortran_" x
66 #define BLANK_COMMON_NAME "__BLNK__"
68 /* Macro to initialize an mstring structure. */
69 #define minit(s, t) { s, NULL, t }
71 /* Structure for storing strings to be matched by gfc_match_string. */
82 /*************************** Enums *****************************/
84 /* Used when matching and resolving data I/O transfer statements. */
87 { M_READ, M_WRITE, M_PRINT, M_INQUIRE }
90 /* The author remains confused to this day about the convention of
91 returning '0' for 'SUCCESS'... or was it the other way around? The
92 following enum makes things much more readable. We also start
93 values off at one instead of zero. */
96 { SUCCESS = 1, FAILURE }
99 /* These are flags for identifying whether we are reading a character literal
100 between quotes or normal source code. */
103 { NONSTRING = 0, INSTRING_WARN, INSTRING_NOWARN }
106 /* This is returned by gfc_notification_std to know if, given the flags
107 that were given (-std=, -pedantic) we should issue an error, a warning
111 { SILENT, WARNING, ERROR }
114 /* Matchers return one of these three values. The difference between
115 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
116 successful, but that something non-syntactic is wrong and an error
117 has already been issued. */
120 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
123 /* Used for different Fortran source forms in places like scanner.c. */
125 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
128 /* Expression node types. */
130 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
131 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC
137 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
138 AS_ASSUMED_SIZE, AS_IMPLIED_SHAPE, AS_UNKNOWN
143 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
146 /* Statement label types. */
148 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
149 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
153 /* Intrinsic operators. */
155 { GFC_INTRINSIC_BEGIN = 0,
156 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
157 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
158 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
159 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
160 /* ==, /=, >, >=, <, <= */
161 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
162 INTRINSIC_LT, INTRINSIC_LE,
163 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
164 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
165 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
166 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
167 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
171 /* This macro is the number of intrinsic operators that exist.
172 Assumptions are made about the numbering of the interface_op enums. */
173 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
175 /* Arithmetic results. */
177 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
178 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT
185 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE,
186 ST_BACKSPACE, ST_BLOCK, ST_BLOCK_DATA,
187 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
188 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
189 ST_ELSEWHERE, ST_END_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA,
190 ST_ENDDO, ST_IMPLIED_ENDDO,
191 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
192 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
193 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
194 ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION,
195 ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT,
196 ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY, ST_SYNC_IMAGES,
197 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
198 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
199 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT,
200 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
201 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
202 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS,
203 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
204 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
205 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
206 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
207 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
208 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
209 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
210 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
211 ST_OMP_TASKWAIT, ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL,
212 ST_GET_FCN_CHARACTERISTICS, ST_NONE
216 /* Types of interfaces that we can have. Assignment interfaces are
217 considered to be intrinsic operators. */
220 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
221 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
225 /* Symbol flavors: these are all mutually exclusive.
226 10 elements = 4 bits. */
227 typedef enum sym_flavor
229 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
230 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
235 /* Procedure types. 7 elements = 3 bits. */
236 typedef enum procedure_type
237 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
238 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
243 typedef enum sym_intent
244 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
249 typedef enum gfc_access
250 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
254 /* Flags to keep track of where an interface came from.
255 3 elements = 2 bits. */
257 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */
258 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */
259 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement
260 with explicit interface. */
264 /* Whether a SAVE attribute was set explicitly or implicitly. */
265 typedef enum save_state
266 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
270 /* Strings for all symbol attributes. We use these for dumping the
271 parse tree, in error messages, and also when reading and writing
272 modules. In symbol.c. */
273 extern const mstring flavors[];
274 extern const mstring procedures[];
275 extern const mstring intents[];
276 extern const mstring access_types[];
277 extern const mstring ifsrc_types[];
278 extern const mstring save_status[];
280 /* Enumeration of all the generic intrinsic functions. Used by the
281 backend for identification of a function. */
285 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
286 the backend (e.g. KIND). */
321 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
322 GFC_ISYM_COMPILER_OPTIONS,
323 GFC_ISYM_COMPILER_VERSION,
334 GFC_ISYM_DATE_AND_TIME,
338 GFC_ISYM_DOT_PRODUCT,
347 GFC_ISYM_ERFC_SCALED,
349 GFC_ISYM_EXECUTE_COMMAND_LINE,
353 GFC_ISYM_EXTENDS_TYPE_OF,
370 GFC_ISYM_GET_COMMAND,
371 GFC_ISYM_GET_COMMAND_ARGUMENT,
374 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
395 GFC_ISYM_IMAGE_INDEX,
404 GFC_ISYM_IS_IOSTAT_END,
405 GFC_ISYM_IS_IOSTAT_EOR,
440 GFC_ISYM_MAXEXPONENT,
448 GFC_ISYM_MINEXPONENT,
473 GFC_ISYM_RANDOM_NUMBER,
474 GFC_ISYM_RANDOM_SEED,
482 GFC_ISYM_SAME_TYPE_AS,
488 GFC_ISYM_SET_EXPONENT,
507 GFC_ISYM_STORAGE_SIZE,
512 GFC_ISYM_SYSTEM_CLOCK,
536 typedef enum gfc_isym_id gfc_isym_id;
541 GFC_INIT_REAL_OFF = 0,
546 GFC_INIT_REAL_NEG_INF
552 GFC_INIT_LOGICAL_OFF = 0,
553 GFC_INIT_LOGICAL_FALSE,
554 GFC_INIT_LOGICAL_TRUE
560 GFC_INIT_CHARACTER_OFF = 0,
561 GFC_INIT_CHARACTER_ON
563 init_local_character;
567 GFC_INIT_INTEGER_OFF = 0,
574 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;
938 struct gfc_expr *initializer;
939 struct gfc_component *next;
941 /* Needed for procedure pointer components. */
942 struct gfc_formal_arglist *formal;
943 struct gfc_namespace *formal_ns;
944 struct gfc_typebound_proc *tb;
948 #define gfc_get_component() XCNEW (gfc_component)
950 /* Formal argument lists are lists of symbols. */
951 typedef struct gfc_formal_arglist
953 /* Symbol representing the argument at this position in the arglist. */
954 struct gfc_symbol *sym;
955 /* Points to the next formal argument. */
956 struct gfc_formal_arglist *next;
960 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
963 /* The gfc_actual_arglist structure is for actual arguments. */
964 typedef struct gfc_actual_arglist
967 /* Alternate return label when the expr member is null. */
968 struct gfc_st_label *label;
970 /* This is set to the type of an eventual omitted optional
971 argument. This is used to determine if a hidden string length
972 argument has to be added to a function call. */
975 struct gfc_expr *expr;
976 struct gfc_actual_arglist *next;
980 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
983 /* Because a symbol can belong to multiple namelists, they must be
984 linked externally to the symbol itself. */
985 typedef struct gfc_namelist
987 struct gfc_symbol *sym;
988 struct gfc_namelist *next;
992 #define gfc_get_namelist() XCNEW (gfc_namelist)
997 OMP_LIST_FIRSTPRIVATE,
998 OMP_LIST_LASTPRIVATE,
999 OMP_LIST_COPYPRIVATE,
1003 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
1015 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
1019 /* Because a symbol can belong to multiple namelists, they must be
1020 linked externally to the symbol itself. */
1022 enum gfc_omp_sched_kind
1032 enum gfc_omp_default_sharing
1034 OMP_DEFAULT_UNKNOWN,
1036 OMP_DEFAULT_PRIVATE,
1038 OMP_DEFAULT_FIRSTPRIVATE
1041 typedef struct gfc_omp_clauses
1043 struct gfc_expr *if_expr;
1044 struct gfc_expr *num_threads;
1045 gfc_namelist *lists[OMP_LIST_NUM];
1046 enum gfc_omp_sched_kind sched_kind;
1047 struct gfc_expr *chunk_size;
1048 enum gfc_omp_default_sharing default_sharing;
1050 bool nowait, ordered, untied;
1054 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1057 /* The gfc_st_label structure is a BBT attached to a namespace that
1058 records the usage of statement labels within that space. */
1060 typedef struct gfc_st_label
1062 BBT_HEADER(gfc_st_label);
1066 gfc_sl_type defined, referenced;
1068 struct gfc_expr *format;
1077 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1078 typedef struct gfc_interface
1080 struct gfc_symbol *sym;
1082 struct gfc_interface *next;
1086 #define gfc_get_interface() XCNEW (gfc_interface)
1088 /* User operator nodes. These are like stripped down symbols. */
1094 struct gfc_namespace *ns;
1100 /* A list of specific bindings that are associated with a generic spec. */
1101 typedef struct gfc_tbp_generic
1103 /* The parser sets specific_st, upon resolution we look for the corresponding
1104 gfc_typebound_proc and set specific for further use. */
1105 struct gfc_symtree* specific_st;
1106 struct gfc_typebound_proc* specific;
1108 struct gfc_tbp_generic* next;
1112 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1115 /* Data needed for type-bound procedures. */
1116 typedef struct gfc_typebound_proc
1118 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1122 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1123 gfc_tbp_generic* generic;
1128 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1130 /* The overridden type-bound proc (or GENERIC with this name in the
1131 parent-type) or NULL if non. */
1132 struct gfc_typebound_proc* overridden;
1134 /* Once resolved, we use the position of pass_arg in the formal arglist of
1135 the binding-target procedure to identify it. The first argument has
1136 number 1 here, the second 2, and so on. */
1137 unsigned pass_arg_num;
1139 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1140 unsigned non_overridable:1;
1141 unsigned deferred:1;
1142 unsigned is_generic:1;
1143 unsigned function:1, subroutine:1;
1144 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1150 /* Symbol nodes. These are important things. They are what the
1151 standard refers to as "entities". The possibly multiple names that
1152 refer to the same entity are accomplished by a binary tree of
1153 symtree structures that is balanced by the red-black method-- more
1154 than one symtree node can point to any given symbol. */
1156 typedef struct gfc_symbol
1158 const char *name; /* Primary name, before renaming */
1159 const char *module; /* Module this symbol came from */
1163 symbol_attribute attr;
1165 /* The formal member points to the formal argument list if the
1166 symbol is a function or subroutine name. If the symbol is a
1167 generic name, the generic member points to the list of
1170 gfc_interface *generic;
1171 gfc_access component_access;
1173 gfc_formal_arglist *formal;
1174 struct gfc_namespace *formal_ns;
1175 struct gfc_namespace *f2k_derived;
1177 struct gfc_expr *value; /* Parameter/Initializer value */
1179 struct gfc_symbol *result; /* function result symbol */
1180 gfc_component *components; /* Derived type components */
1182 /* Defined only for Cray pointees; points to their pointer. */
1183 struct gfc_symbol *cp_pointer;
1185 int entry_id; /* Used in resolve.c for entries. */
1187 /* CLASS hashed name for declared and dynamic types in the class. */
1190 struct gfc_symbol *common_next; /* Links for COMMON syms */
1192 /* This is in fact a gfc_common_head but it is only used for pointer
1193 comparisons to check if symbols are in the same common block. */
1194 struct gfc_common_head* common_head;
1196 /* Make sure setup code for dummy arguments is generated in the correct
1200 gfc_namelist *namelist, *namelist_tail;
1202 /* Change management fields. Symbols that might be modified by the
1203 current statement have the mark member nonzero and are kept in a
1204 singly linked list through the tlink field. Of these symbols,
1205 symbols with old_symbol equal to NULL are symbols created within
1206 the current statement. Otherwise, old_symbol points to a copy of
1209 struct gfc_symbol *old_symbol, *tlink;
1210 unsigned mark:1, gfc_new:1;
1211 /* Nonzero if all equivalences associated with this symbol have been
1213 unsigned equiv_built:1;
1214 /* Set if this variable is used as an index name in a FORALL. */
1215 unsigned forall_index:1;
1217 struct gfc_namespace *ns; /* namespace containing this symbol */
1221 /* Identity of the intrinsic module the symbol comes from, or
1222 INTMOD_NONE if it's not imported from a intrinsic module. */
1223 intmod_id from_intmod;
1224 /* Identity of the symbol from intrinsic modules, from enums maintained
1225 separately by each intrinsic module. Used together with from_intmod,
1226 it uniquely identifies a symbol from an intrinsic module. */
1229 /* This may be repetitive, since the typespec now has a binding
1231 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1232 /* Store a reference to the common_block, if this symbol is in one. */
1233 struct gfc_common_head *common_block;
1235 /* Link to corresponding association-list if this is an associate name. */
1236 struct gfc_association_list *assoc;
1241 /* This structure is used to keep track of symbols in common blocks. */
1242 typedef struct gfc_common_head
1245 char use_assoc, saved, threadprivate;
1246 char name[GFC_MAX_SYMBOL_LEN + 1];
1247 struct gfc_symbol *head;
1248 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1253 #define gfc_get_common_head() XCNEW (gfc_common_head)
1256 /* A list of all the alternate entry points for a procedure. */
1258 typedef struct gfc_entry_list
1260 /* The symbol for this entry point. */
1262 /* The zero-based id of this entry point. */
1264 /* The LABEL_EXPR marking this entry point. */
1266 /* The next item in the list. */
1267 struct gfc_entry_list *next;
1271 #define gfc_get_entry_list() \
1272 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1274 /* Lists of rename info for the USE statement. */
1276 typedef struct gfc_use_rename
1278 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1279 struct gfc_use_rename *next;
1281 gfc_intrinsic_op op;
1286 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1288 /* A list of all USE statements in a namespace. */
1290 typedef struct gfc_use_list
1292 const char *module_name;
1294 struct gfc_use_rename *rename;
1296 /* Next USE statement. */
1297 struct gfc_use_list *next;
1301 #define gfc_get_use_list() \
1302 (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list))
1304 /* Within a namespace, symbols are pointed to by symtree nodes that
1305 are linked together in a balanced binary tree. There can be
1306 several symtrees pointing to the same symbol node via USE
1309 typedef struct gfc_symtree
1311 BBT_HEADER (gfc_symtree);
1316 gfc_symbol *sym; /* Symbol associated with this node */
1318 gfc_common_head *common;
1319 gfc_typebound_proc *tb;
1325 /* A linked list of derived types in the namespace. */
1326 typedef struct gfc_dt_list
1328 struct gfc_symbol *derived;
1329 struct gfc_dt_list *next;
1333 #define gfc_get_dt_list() XCNEW (gfc_dt_list)
1335 /* A list of all derived types. */
1336 extern gfc_dt_list *gfc_derived_types;
1338 /* A namespace describes the contents of procedure, module, interface block
1339 or BLOCK construct. */
1340 /* ??? Anything else use these? */
1342 typedef struct gfc_namespace
1344 /* Tree containing all the symbols in this namespace. */
1345 gfc_symtree *sym_root;
1346 /* Tree containing all the user-defined operators in the namespace. */
1347 gfc_symtree *uop_root;
1348 /* Tree containing all the common blocks. */
1349 gfc_symtree *common_root;
1351 /* Tree containing type-bound procedures. */
1352 gfc_symtree *tb_sym_root;
1353 /* Type-bound user operators. */
1354 gfc_symtree *tb_uop_root;
1355 /* For derived-types, store type-bound intrinsic operators here. */
1356 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1357 /* Linked list of finalizer procedures. */
1358 struct gfc_finalizer *finalizers;
1360 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1361 int set_flag[GFC_LETTERS];
1362 /* Keeps track of the implicit types associated with the letters. */
1363 gfc_typespec default_type[GFC_LETTERS];
1364 /* Store the positions of IMPLICIT statements. */
1365 locus implicit_loc[GFC_LETTERS];
1367 /* If this is a namespace of a procedure, this points to the procedure. */
1368 struct gfc_symbol *proc_name;
1369 /* If this is the namespace of a unit which contains executable
1370 code, this points to it. */
1371 struct gfc_code *code;
1373 /* Points to the equivalences set up in this namespace. */
1374 struct gfc_equiv *equiv, *old_equiv;
1376 /* Points to the equivalence groups produced by trans_common. */
1377 struct gfc_equiv_list *equiv_lists;
1379 gfc_interface *op[GFC_INTRINSIC_OPS];
1381 /* Points to the parent namespace, i.e. the namespace of a module or
1382 procedure in which the procedure belonging to this namespace is
1383 contained. The parent namespace points to this namespace either
1384 directly via CONTAINED, or indirectly via the chain built by
1386 struct gfc_namespace *parent;
1387 /* CONTAINED points to the first contained namespace. Sibling
1388 namespaces are chained via SIBLING. */
1389 struct gfc_namespace *contained, *sibling;
1391 gfc_common_head blank_common;
1392 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1394 gfc_st_label *st_labels;
1395 /* This list holds information about all the data initializers in
1397 struct gfc_data *data;
1399 gfc_charlen *cl_list, *old_cl_list;
1401 gfc_dt_list *derived_types;
1403 int save_all, seen_save, seen_implicit_none;
1405 /* Normally we don't need to refcount namespaces. However when we read
1406 a module containing a function with multiple entry points, this
1407 will appear as several functions with the same formal namespace. */
1410 /* A list of all alternate entry points to this procedure (or NULL). */
1411 gfc_entry_list *entries;
1413 /* A list of USE statements in this namespace. */
1414 gfc_use_list *use_stmts;
1416 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1417 unsigned is_block_data:1;
1419 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1420 unsigned has_import_set:1;
1422 /* Set to 1 if resolved has been called for this namespace.
1423 Holds -1 during resolution. */
1426 /* Set to 1 if code has been generated for this namespace. */
1427 unsigned translated:1;
1429 /* Set to 1 if symbols in this namespace should be 'construct entities',
1430 i.e. for BLOCK local variables. */
1431 unsigned construct_entities:1;
1435 extern gfc_namespace *gfc_current_ns;
1436 extern gfc_namespace *gfc_global_ns_list;
1438 /* Global symbols are symbols of global scope. Currently we only use
1439 this to detect collisions already when parsing.
1440 TODO: Extend to verify procedure calls. */
1442 enum gfc_symbol_type
1444 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1445 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1448 typedef struct gfc_gsymbol
1450 BBT_HEADER(gfc_gsymbol);
1453 const char *sym_name;
1454 const char *mod_name;
1455 const char *binding_label;
1456 enum gfc_symbol_type type;
1464 extern gfc_gsymbol *gfc_gsym_root;
1466 /* Information on interfaces being built. */
1469 interface_type type;
1473 gfc_intrinsic_op op;
1477 extern gfc_interface_info current_interface;
1480 /* Array reference. */
1482 enum gfc_array_ref_dimen_type
1484 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_UNKNOWN
1487 typedef struct gfc_array_ref
1490 int dimen; /* # of components in the reference */
1492 bool in_allocate; /* For coarray checks. */
1496 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1497 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1498 *stride[GFC_MAX_DIMENSIONS];
1500 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1502 struct gfc_expr *offset;
1506 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1509 /* Component reference nodes. A variable is stored as an expression
1510 node that points to the base symbol. After that, a singly linked
1511 list of component reference nodes gives the variable's complete
1512 resolution. The array_ref component may be present and comes
1513 before the component component. */
1516 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1519 typedef struct gfc_ref
1525 struct gfc_array_ref ar;
1529 gfc_component *component;
1536 struct gfc_expr *start, *end; /* Substring */
1537 gfc_charlen *length;
1544 struct gfc_ref *next;
1548 #define gfc_get_ref() XCNEW (gfc_ref)
1551 /* Structures representing intrinsic symbols and their arguments lists. */
1552 typedef struct gfc_intrinsic_arg
1554 char name[GFC_MAX_SYMBOL_LEN + 1];
1557 unsigned optional:1, value:1;
1558 ENUM_BITFIELD (sym_intent) intent:2;
1559 gfc_actual_arglist *actual;
1561 struct gfc_intrinsic_arg *next;
1567 /* Specifies the various kinds of check functions used to verify the
1568 argument lists of intrinsic functions. fX with X an integer refer
1569 to check functions of intrinsics with X arguments. f1m is used for
1570 the MAX and MIN intrinsics which can have an arbitrary number of
1571 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1572 these have special semantics. */
1576 gfc_try (*f0)(void);
1577 gfc_try (*f1)(struct gfc_expr *);
1578 gfc_try (*f1m)(gfc_actual_arglist *);
1579 gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *);
1580 gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1581 gfc_try (*f3ml)(gfc_actual_arglist *);
1582 gfc_try (*f3red)(gfc_actual_arglist *);
1583 gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1585 gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1586 struct gfc_expr *, struct gfc_expr *);
1590 /* Like gfc_check_f, these specify the type of the simplification
1591 function associated with an intrinsic. The fX are just like in
1592 gfc_check_f. cc is used for type conversion functions. */
1596 struct gfc_expr *(*f0)(void);
1597 struct gfc_expr *(*f1)(struct gfc_expr *);
1598 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1599 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1601 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1602 struct gfc_expr *, struct gfc_expr *);
1603 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1604 struct gfc_expr *, struct gfc_expr *,
1606 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1610 /* Again like gfc_check_f, these specify the type of the resolution
1611 function associated with an intrinsic. The fX are just like in
1612 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1616 void (*f0)(struct gfc_expr *);
1617 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1618 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1619 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1620 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1622 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1623 struct gfc_expr *, struct gfc_expr *);
1624 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1625 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1626 void (*s1)(struct gfc_code *);
1631 typedef struct gfc_intrinsic_sym
1633 const char *name, *lib_name;
1634 gfc_intrinsic_arg *formal;
1636 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1637 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1,
1642 gfc_simplify_f simplify;
1644 gfc_resolve_f resolve;
1645 struct gfc_intrinsic_sym *specific_head, *next;
1652 /* Expression nodes. The expression node types deserve explanations,
1653 since the last couple can be easily misconstrued:
1655 EXPR_OP Operator node pointing to one or two other nodes
1656 EXPR_FUNCTION Function call, symbol points to function's name
1657 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1658 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1659 which expresses structure, array and substring refs.
1660 EXPR_NULL The NULL pointer value (which also has a basic type).
1661 EXPR_SUBSTRING A substring of a constant string
1662 EXPR_STRUCTURE A structure constructor
1663 EXPR_ARRAY An array constructor.
1664 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
1665 component or type-bound procedure. */
1670 #define GFC_RND_MODE GMP_RNDN
1671 #define GFC_MPC_RND_MODE MPC_RNDNN
1673 typedef splay_tree gfc_constructor_base;
1675 typedef struct gfc_expr
1679 gfc_typespec ts; /* These two refer to the overall expression */
1682 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1684 /* Nonnull for functions and structure constructors, may also used to hold the
1685 base-object for component calls. */
1686 gfc_symtree *symtree;
1692 /* is_boz is true if the integer is regarded as BOZ bitpatten and is_snan
1693 denotes a signalling not-a-number. */
1694 unsigned int is_boz : 1, is_snan : 1;
1696 /* Sometimes, when an error has been emitted, it is necessary to prevent
1697 it from recurring. */
1698 unsigned int error : 1;
1700 /* Mark an expression where a user operator has been substituted by
1701 a function call in interface.c(gfc_extend_expr). */
1702 unsigned int user_operator : 1;
1704 /* Mark an expression as being a MOLD argument of ALLOCATE. */
1705 unsigned int mold : 1;
1707 /* If an expression comes from a Hollerith constant or compile-time
1708 evaluation of a transfer statement, it may have a prescribed target-
1709 memory representation, and these cannot always be backformed from
1732 gfc_intrinsic_op op;
1734 struct gfc_expr *op1, *op2;
1740 gfc_actual_arglist *actual;
1741 const char *name; /* Points to the ultimate name of the function */
1742 gfc_intrinsic_sym *isym;
1749 gfc_actual_arglist* actual;
1751 /* Base-object, whose component was called. NULL means that it should
1752 be taken from symtree/ref. */
1753 struct gfc_expr* base_object;
1754 gfc_typebound_proc* tbp; /* Should overlap with esym. */
1756 /* For type-bound operators, we want to call PASS procedures but already
1757 have the full arglist; mark this, so that it is not extended by the
1759 unsigned ignore_pass:1;
1761 /* Do assign-calls rather than calls, that is appropriate dependency
1774 gfc_constructor_base constructor;
1782 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1784 /* Structures for information associated with different kinds of
1785 numbers. The first set of integer parameters define all there is
1786 to know about a particular kind. The rest of the elements are
1787 computed from the first elements. */
1791 /* Values really representable by the target. */
1792 mpz_t huge, pedantic_min_int, min_int;
1794 int kind, radix, digits, bit_size, range;
1796 /* True if the C type of the given name maps to this precision.
1797 Note that more than one bit can be set. */
1798 unsigned int c_char : 1;
1799 unsigned int c_short : 1;
1800 unsigned int c_int : 1;
1801 unsigned int c_long : 1;
1802 unsigned int c_long_long : 1;
1806 extern gfc_integer_info gfc_integer_kinds[];
1813 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1814 unsigned int c_bool : 1;
1818 extern gfc_logical_info gfc_logical_kinds[];
1823 mpfr_t epsilon, huge, tiny, subnormal;
1824 int kind, radix, digits, min_exponent, max_exponent;
1825 int range, precision;
1827 /* The precision of the type as reported by GET_MODE_PRECISION. */
1830 /* True if the C type of the given name maps to this precision.
1831 Note that more than one bit can be set. */
1832 unsigned int c_float : 1;
1833 unsigned int c_double : 1;
1834 unsigned int c_long_double : 1;
1835 unsigned int c_float128 : 1;
1839 extern gfc_real_info gfc_real_kinds[];
1848 extern gfc_character_info gfc_character_kinds[];
1851 /* Equivalence structures. Equivalent lvalues are linked along the
1852 *eq pointer, equivalence sets are strung along the *next node. */
1853 typedef struct gfc_equiv
1855 struct gfc_equiv *next, *eq;
1862 #define gfc_get_equiv() XCNEW (gfc_equiv)
1864 /* Holds a single equivalence member after processing. */
1865 typedef struct gfc_equiv_info
1868 HOST_WIDE_INT offset;
1869 HOST_WIDE_INT length;
1870 struct gfc_equiv_info *next;
1873 /* Holds equivalence groups, after they have been processed. */
1874 typedef struct gfc_equiv_list
1876 gfc_equiv_info *equiv;
1877 struct gfc_equiv_list *next;
1880 /* gfc_case stores the selector list of a case statement. The *low
1881 and *high pointers can point to the same expression in the case of
1882 a single value. If *high is NULL, the selection is from *low
1883 upwards, if *low is NULL the selection is *high downwards.
1885 This structure has separate fields to allow single and double linked
1886 lists of CASEs at the same time. The singe linked list along the NEXT
1887 field is a list of cases for a single CASE label. The double linked
1888 list along the LEFT/RIGHT fields is used to detect overlap and to
1889 build a table of the cases for SELECT constructs with a CHARACTER
1892 typedef struct gfc_case
1894 /* Where we saw this case. */
1898 /* Case range values. If (low == high), it's a single value. If one of
1899 the labels is NULL, it's an unbounded case. If both are NULL, this
1900 represents the default case. */
1901 gfc_expr *low, *high;
1903 /* Only used for SELECT TYPE. */
1906 /* Next case label in the list of cases for a single CASE label. */
1907 struct gfc_case *next;
1909 /* Used for detecting overlap, and for code generation. */
1910 struct gfc_case *left, *right;
1912 /* True if this case label can never be matched. */
1917 #define gfc_get_case() XCNEW (gfc_case)
1922 gfc_expr *var, *start, *end, *step;
1926 #define gfc_get_iterator() XCNEW (gfc_iterator)
1929 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1931 typedef struct gfc_alloc
1934 struct gfc_alloc *next;
1938 #define gfc_get_alloc() XCNEW (gfc_alloc)
1943 gfc_expr *unit, *file, *status, *access, *form, *recl,
1944 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
1945 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit;
1953 gfc_expr *unit, *status, *iostat, *iomsg;
1961 gfc_expr *unit, *iostat, *iomsg;
1969 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1970 *name, *access, *sequential, *direct, *form, *formatted,
1971 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1972 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
1973 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id;
1983 gfc_expr *unit, *iostat, *iomsg, *id;
1984 gfc_st_label *err, *end, *eor;
1991 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
1992 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
1993 *sign, *extra_comma, *dt_io_kind;
1995 gfc_symbol *namelist;
1996 /* A format_label of `format_asterisk' indicates the "*" format */
1997 gfc_st_label *format_label;
1998 gfc_st_label *err, *end, *eor;
2000 locus eor_where, end_where, err_where;
2005 typedef struct gfc_forall_iterator
2007 gfc_expr *var, *start, *end, *stride;
2008 struct gfc_forall_iterator *next;
2010 gfc_forall_iterator;
2013 /* Linked list to store associations in an ASSOCIATE statement. */
2015 typedef struct gfc_association_list
2017 struct gfc_association_list *next;
2019 /* Whether this is association to a variable that can be changed; otherwise,
2020 it's association to an expression and the name may not be used as
2022 unsigned variable:1;
2024 /* True if this struct is currently only linked to from a gfc_symbol rather
2025 than as part of a real list in gfc_code->ext.block.assoc. This may
2026 happen for SELECT TYPE temporaries and must be considered
2027 for memory handling. */
2028 unsigned dangling:1;
2030 char name[GFC_MAX_SYMBOL_LEN + 1];
2031 gfc_symtree *st; /* Symtree corresponding to name. */
2036 gfc_association_list;
2037 #define gfc_get_association_list() XCNEW (gfc_association_list)
2040 /* Executable statements that fill gfc_code structures. */
2043 EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN,
2044 EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2045 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2046 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2047 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK,
2048 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC,
2049 EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE,
2050 EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
2051 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2052 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2053 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2054 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2055 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2056 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2057 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2058 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2059 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT
2063 typedef struct gfc_code
2067 struct gfc_code *block, *next;
2070 gfc_st_label *here, *label1, *label2, *label3;
2071 gfc_symtree *symtree;
2072 gfc_expr *expr1, *expr2, *expr3;
2073 /* A name isn't sufficient to identify a subroutine, we need the actual
2074 symbol for the interface definition.
2075 const char *sub_name; */
2076 gfc_symbol *resolved_sym;
2077 gfc_intrinsic_sym *resolved_isym;
2081 gfc_actual_arglist *actual;
2082 gfc_iterator *iterator;
2094 gfc_association_list *assoc;
2095 gfc_case *case_list;
2101 gfc_filepos *filepos;
2102 gfc_inquire *inquire;
2105 gfc_forall_iterator *forall_iterator;
2106 struct gfc_code *which_construct;
2108 gfc_entry_list *entry;
2109 gfc_omp_clauses *omp_clauses;
2110 const char *omp_name;
2111 gfc_namelist *omp_namelist;
2114 ext; /* Points to additional structures required by statement */
2116 /* Cycle and break labels in constructs. */
2123 /* Storage for DATA statements. */
2124 typedef struct gfc_data_variable
2128 struct gfc_data_variable *list, *next;
2133 typedef struct gfc_data_value
2137 struct gfc_data_value *next;
2142 typedef struct gfc_data
2144 gfc_data_variable *var;
2145 gfc_data_value *value;
2148 struct gfc_data *next;
2153 /* Structure for holding compile options */
2157 gfc_source_form source_form;
2158 /* Maximum line lengths in fixed- and free-form source, respectively.
2159 When fixed_line_length or free_line_length are 0, the whole line is used,
2160 regardless of length.
2162 If the user requests a fixed_line_length <7 then gfc_init_options()
2163 emits a fatal error. */
2164 int fixed_line_length;
2165 int free_line_length;
2166 /* Maximum number of continuation lines in fixed- and free-form source,
2168 int max_continue_fixed;
2169 int max_continue_free;
2170 int max_identifier_length;
2171 int dump_fortran_original;
2172 int dump_fortran_optimized;
2176 int gfc_warn_conversion;
2177 int warn_conversion_extra;
2178 int warn_implicit_interface;
2179 int warn_implicit_procedure;
2180 int warn_line_truncation;
2181 int warn_surprising;
2184 int warn_intrinsic_shadow;
2185 int warn_intrinsics_std;
2186 int warn_character_truncation;
2187 int warn_array_temp;
2188 int warn_align_commons;
2189 int warn_unused_dummy_argument;
2192 int flag_all_intrinsics;
2193 int flag_default_double;
2194 int flag_default_integer;
2195 int flag_default_real;
2197 int flag_underscoring;
2198 int flag_second_underscore;
2199 int flag_implicit_none;
2200 int flag_max_stack_var_size;
2201 int flag_max_array_constructor;
2202 int flag_range_check;
2203 int flag_pack_derived;
2204 int flag_repack_arrays;
2205 int flag_preprocessed;
2210 int flag_allow_leading_underscore;
2212 int flag_external_blas;
2213 int blas_matmul_limit;
2214 int flag_cray_pointer;
2216 int gfc_flag_openmp;
2218 int flag_module_private;
2220 int flag_init_local_zero;
2221 int flag_init_integer;
2222 int flag_init_integer_value;
2224 int flag_init_logical;
2225 int flag_init_character;
2226 char flag_init_character_value;
2227 int flag_align_commons;
2228 int flag_whole_file;
2229 int flag_protect_parens;
2230 int flag_realloc_lhs;
2234 gfc_fcoarray coarray;
2240 int max_subrecord_length;
2244 extern gfc_option_t gfc_option;
2246 /* Constructor nodes for array and structure constructors. */
2247 typedef struct gfc_constructor
2249 gfc_constructor_base base;
2250 mpz_t offset; /* Offset within a constructor, used as
2254 gfc_iterator *iterator;
2259 gfc_component *component; /* Record the component being initialized. */
2266 typedef struct iterator_stack
2268 gfc_symtree *variable;
2270 struct iterator_stack *prev;
2273 extern iterator_stack *iter_stack;
2276 /* Used for (possibly nested) SELECT TYPE statements. */
2277 typedef struct gfc_select_type_stack
2279 gfc_symbol *selector; /* Current selector variable. */
2280 gfc_symtree *tmp; /* Current temporary variable. */
2281 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2283 gfc_select_type_stack;
2284 extern gfc_select_type_stack *select_type_stack;
2285 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2288 /* Node in the linked list used for storing finalizer procedures. */
2290 typedef struct gfc_finalizer
2292 struct gfc_finalizer* next;
2293 locus where; /* Where the FINAL declaration occurred. */
2295 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2296 symtree and later need only that. This way, we can access and call the
2297 finalizers from every context as they should be "always accessible". I
2298 don't make this a union because we need the information whether proc_sym is
2299 still referenced or not for dereferencing it on deleting a gfc_finalizer
2301 gfc_symbol* proc_sym;
2302 gfc_symtree* proc_tree;
2305 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2308 /************************ Function prototypes *************************/
2311 bool gfc_in_match_data (void);
2312 match gfc_match_char_spec (gfc_typespec *);
2315 void gfc_scanner_done_1 (void);
2316 void gfc_scanner_init_1 (void);
2318 void gfc_add_include_path (const char *, bool, bool);
2319 void gfc_add_intrinsic_modules_path (const char *);
2320 void gfc_release_include_path (void);
2321 FILE *gfc_open_included_file (const char *, bool, bool);
2322 FILE *gfc_open_intrinsic_module (const char *);
2324 int gfc_at_end (void);
2325 int gfc_at_eof (void);
2326 int gfc_at_bol (void);
2327 int gfc_at_eol (void);
2328 void gfc_advance_line (void);
2329 int gfc_check_include (void);
2330 int gfc_define_undef_line (void);
2332 int gfc_wide_is_printable (gfc_char_t);
2333 int gfc_wide_is_digit (gfc_char_t);
2334 int gfc_wide_fits_in_byte (gfc_char_t);
2335 gfc_char_t gfc_wide_tolower (gfc_char_t);
2336 gfc_char_t gfc_wide_toupper (gfc_char_t);
2337 size_t gfc_wide_strlen (const gfc_char_t *);
2338 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2339 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2340 char *gfc_widechar_to_char (const gfc_char_t *, int);
2341 gfc_char_t *gfc_char_to_widechar (const char *);
2343 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2345 void gfc_skip_comments (void);
2346 gfc_char_t gfc_next_char_literal (gfc_instring);
2347 gfc_char_t gfc_next_char (void);
2348 char gfc_next_ascii_char (void);
2349 gfc_char_t gfc_peek_char (void);
2350 char gfc_peek_ascii_char (void);
2351 void gfc_error_recovery (void);
2352 void gfc_gobble_whitespace (void);
2353 gfc_try gfc_new_file (void);
2354 const char * gfc_read_orig_filename (const char *, const char **);
2356 extern gfc_source_form gfc_current_form;
2357 extern const char *gfc_source_file;
2358 extern locus gfc_current_locus;
2360 void gfc_start_source_files (void);
2361 void gfc_end_source_files (void);
2364 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
2365 void gfc_free (void *);
2366 int gfc_terminal_width (void);
2367 void gfc_clear_ts (gfc_typespec *);
2368 FILE *gfc_open_file (const char *);
2369 const char *gfc_basic_typename (bt);
2370 const char *gfc_typename (gfc_typespec *);
2371 const char *gfc_op2string (gfc_intrinsic_op);
2372 const char *gfc_code2string (const mstring *, int);
2373 int gfc_string2code (const mstring *, const char *);
2374 const char *gfc_intent_string (sym_intent);
2376 void gfc_init_1 (void);
2377 void gfc_init_2 (void);
2378 void gfc_done_1 (void);
2379 void gfc_done_2 (void);
2381 int get_c_kind (const char *, CInteropKind_t *);
2384 unsigned int gfc_option_lang_mask (void);
2385 void gfc_init_options_struct (struct gcc_options *);
2386 void gfc_init_options (unsigned int,
2387 struct cl_decoded_option *);
2388 bool gfc_handle_option (size_t, const char *, int, int, location_t,
2389 const struct cl_option_handlers *);
2390 bool gfc_post_options (const char **);
2391 char *gfc_get_option_string (void);
2394 void gfc_maybe_initialize_eh (void);
2397 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2398 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2402 typedef struct gfc_error_buf
2405 size_t allocated, index;
2409 void gfc_error_init_1 (void);
2410 void gfc_buffer_error (int);
2412 const char *gfc_print_wide_char (gfc_char_t);
2414 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2415 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2416 void gfc_clear_warning (void);
2417 void gfc_warning_check (void);
2419 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2420 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2421 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2422 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2423 void gfc_clear_error (void);
2424 int gfc_error_check (void);
2425 int gfc_error_flag_test (void);
2427 notification gfc_notification_std (int);
2428 gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2430 /* A general purpose syntax error. */
2431 #define gfc_syntax_error(ST) \
2432 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2434 void gfc_push_error (gfc_error_buf *);
2435 void gfc_pop_error (gfc_error_buf *);
2436 void gfc_free_error (gfc_error_buf *);
2438 void gfc_get_errors (int *, int *);
2439 void gfc_errors_to_warnings (int);
2442 void gfc_arith_init_1 (void);
2443 void gfc_arith_done_1 (void);
2444 arith gfc_check_integer_range (mpz_t p, int kind);
2445 bool gfc_check_character_range (gfc_char_t, int);
2448 gfc_try gfc_check_any_c_kind (gfc_typespec *);
2449 int gfc_validate_kind (bt, int, bool);
2450 int gfc_get_int_kind_from_width_isofortranenv (int size);
2451 int gfc_get_real_kind_from_width_isofortranenv (int size);
2452 tree gfc_get_derived_type (gfc_symbol * derived);
2453 extern int gfc_index_integer_kind;
2454 extern int gfc_default_integer_kind;
2455 extern int gfc_max_integer_kind;
2456 extern int gfc_default_real_kind;
2457 extern int gfc_default_double_kind;
2458 extern int gfc_default_character_kind;
2459 extern int gfc_default_logical_kind;
2460 extern int gfc_default_complex_kind;
2461 extern int gfc_c_int_kind;
2462 extern int gfc_intio_kind;
2463 extern int gfc_charlen_int_kind;
2464 extern int gfc_numeric_storage_size;
2465 extern int gfc_character_storage_size;
2468 void gfc_clear_new_implicit (void);
2469 gfc_try gfc_add_new_implicit_range (int, int);
2470 gfc_try gfc_merge_new_implicit (gfc_typespec *);
2471 void gfc_set_implicit_none (void);
2472 void gfc_check_function_type (gfc_namespace *);
2473 bool gfc_is_intrinsic_typename (const char *);
2475 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2476 gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2478 void gfc_set_sym_referenced (gfc_symbol *);
2480 gfc_try gfc_add_attribute (symbol_attribute *, locus *);
2481 gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
2482 gfc_try gfc_add_allocatable (symbol_attribute *, locus *);
2483 gfc_try gfc_add_codimension (symbol_attribute *, const char *, locus *);
2484 gfc_try gfc_add_contiguous (symbol_attribute *, const char *, locus *);
2485 gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2486 gfc_try gfc_add_external (symbol_attribute *, locus *);
2487 gfc_try gfc_add_intrinsic (symbol_attribute *, locus *);
2488 gfc_try gfc_add_optional (symbol_attribute *, locus *);
2489 gfc_try gfc_add_pointer (symbol_attribute *, locus *);
2490 gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *);
2491 gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *);
2492 match gfc_mod_pointee_as (gfc_array_spec *);
2493 gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *);
2494 gfc_try gfc_add_result (symbol_attribute *, const char *, locus *);
2495 gfc_try gfc_add_save (symbol_attribute *, save_state, const char *, locus *);
2496 gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2497 gfc_try gfc_add_saved_common (symbol_attribute *, locus *);
2498 gfc_try gfc_add_target (symbol_attribute *, locus *);
2499 gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2500 gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *);
2501 gfc_try gfc_add_common (symbol_attribute *, locus *);
2502 gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2503 gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2504 gfc_try gfc_add_data (symbol_attribute *, const char *, locus *);
2505 gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2506 gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2507 gfc_try gfc_add_elemental (symbol_attribute *, locus *);
2508 gfc_try gfc_add_pure (symbol_attribute *, locus *);
2509 gfc_try gfc_add_recursive (symbol_attribute *, locus *);
2510 gfc_try gfc_add_function (symbol_attribute *, const char *, locus *);
2511 gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2512 gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2513 gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
2514 gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2515 gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where);
2517 gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2518 gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
2519 gfc_try gfc_add_extension (symbol_attribute *, locus *);
2520 gfc_try gfc_add_value (symbol_attribute *, const char *, locus *);
2521 gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2522 gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *);
2523 gfc_try gfc_add_procedure (symbol_attribute *, procedure_type,
2524 const char *, locus *);
2525 gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2526 gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2527 gfc_formal_arglist *, locus *);
2528 gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2530 void gfc_clear_attr (symbol_attribute *);
2531 gfc_try gfc_missing_attr (symbol_attribute *, locus *);
2532 gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2534 gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2535 gfc_symbol *gfc_use_derived (gfc_symbol *);
2536 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2537 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool);
2539 gfc_st_label *gfc_get_st_label (int);
2540 void gfc_free_st_label (gfc_st_label *);
2541 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2542 gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2544 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2545 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2546 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2547 void gfc_delete_symtree (gfc_symtree **, const char *);
2548 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2549 gfc_user_op *gfc_get_uop (const char *);
2550 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2551 void gfc_free_symbol (gfc_symbol *);
2552 void gfc_release_symbol (gfc_symbol *);
2553 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2554 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *);
2555 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2556 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2557 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2558 gfc_try verify_c_interop (gfc_typespec *);
2559 gfc_try verify_c_interop_param (gfc_symbol *);
2560 gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2561 gfc_try verify_bind_c_derived_type (gfc_symbol *);
2562 gfc_try verify_com_block_vars_c_interop (gfc_common_head *);
2563 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2564 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2565 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
2566 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2567 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2569 void gfc_undo_symbols (void);
2570 void gfc_commit_symbols (void);
2571 void gfc_commit_symbol (gfc_symbol *);
2572 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
2573 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
2574 void gfc_free_namespace (gfc_namespace *);
2576 void gfc_symbol_init_2 (void);
2577 void gfc_symbol_done_2 (void);
2579 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2580 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2581 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2582 void gfc_save_all (gfc_namespace *);
2584 void gfc_enforce_clean_symbol_state (void);
2585 void gfc_free_dt_list (void);
2588 gfc_gsymbol *gfc_get_gsymbol (const char *);
2589 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2591 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
2592 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
2593 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
2594 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
2595 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
2597 void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *);
2598 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *);
2599 void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *);
2601 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
2603 gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
2604 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*);
2606 bool gfc_is_associate_pointer (gfc_symbol*);
2608 /* intrinsic.c -- true if working in an init-expr, false otherwise. */
2609 extern bool gfc_init_expr_flag;
2611 /* Given a symbol that we have decided is intrinsic, mark it as such
2612 by placing it into a special module that is otherwise impossible to
2615 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2617 void gfc_intrinsic_init_1 (void);
2618 void gfc_intrinsic_done_1 (void);
2620 char gfc_type_letter (bt);
2621 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2622 gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2623 gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2624 gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *);
2625 int gfc_generic_intrinsic (const char *);
2626 int gfc_specific_intrinsic (const char *);
2627 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
2628 int gfc_intrinsic_actual_ok (const char *, const bool);
2629 gfc_intrinsic_sym *gfc_find_function (const char *);
2630 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2631 gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id);
2633 match gfc_intrinsic_func_interface (gfc_expr *, int);
2634 match gfc_intrinsic_sub_interface (gfc_code *, int);
2636 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
2637 gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
2640 /* match.c -- FIXME */
2641 void gfc_free_iterator (gfc_iterator *, int);
2642 void gfc_free_forall_iterator (gfc_forall_iterator *);
2643 void gfc_free_alloc_list (gfc_alloc *);
2644 void gfc_free_namelist (gfc_namelist *);
2645 void gfc_free_equiv (gfc_equiv *);
2646 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *);
2647 void gfc_free_data (gfc_data *);
2648 void gfc_free_case_list (gfc_case *);
2650 /* matchexp.c -- FIXME too? */
2651 gfc_expr *gfc_get_parentheses (gfc_expr *);
2654 struct gfc_omp_saved_state { void *ptrs[2]; int ints[1]; };
2655 void gfc_free_omp_clauses (gfc_omp_clauses *);
2656 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2657 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2658 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2659 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2660 void gfc_omp_save_and_clear_state (struct gfc_omp_saved_state *);
2661 void gfc_omp_restore_state (struct gfc_omp_saved_state *);
2664 void gfc_free_actual_arglist (gfc_actual_arglist *);
2665 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2666 const char *gfc_extract_int (gfc_expr *, int *);
2667 bool is_subref_array (gfc_expr *);
2668 bool gfc_is_simply_contiguous (gfc_expr *, bool);
2670 gfc_expr *gfc_build_conversion (gfc_expr *);
2671 void gfc_free_ref_list (gfc_ref *);
2672 void gfc_type_convert_binary (gfc_expr *, int);
2673 int gfc_is_constant_expr (gfc_expr *);
2674 gfc_try gfc_simplify_expr (gfc_expr *, int);
2675 int gfc_has_vector_index (gfc_expr *);
2677 gfc_expr *gfc_get_expr (void);
2678 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
2679 gfc_expr *gfc_get_null_expr (locus *);
2680 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
2681 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
2682 gfc_expr *gfc_get_constant_expr (bt, int, locus *);
2683 gfc_expr *gfc_get_character_expr (int, locus *, const char *, int len);
2684 gfc_expr *gfc_get_int_expr (int, locus *, int);
2685 gfc_expr *gfc_get_logical_expr (int, locus *, bool);
2686 gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
2688 void gfc_free_expr (gfc_expr *);
2689 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2690 mpz_t *gfc_copy_shape (mpz_t *, int);
2691 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2692 gfc_expr *gfc_copy_expr (gfc_expr *);
2693 gfc_ref* gfc_copy_ref (gfc_ref*);
2695 gfc_try gfc_specification_expr (gfc_expr *);
2697 int gfc_numeric_ts (gfc_typespec *);
2698 int gfc_kind_max (gfc_expr *, gfc_expr *);
2700 gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
2701 gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2702 gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2703 gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2705 bool gfc_has_default_initializer (gfc_symbol *);
2706 gfc_expr *gfc_default_initializer (gfc_typespec *);
2707 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2708 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2710 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
2712 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2713 bool (*)(gfc_expr *, gfc_symbol *, int*),
2715 void gfc_expr_set_symbols_referenced (gfc_expr *);
2716 gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
2717 void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *);
2718 void gfc_expr_replace_comp (gfc_expr *, gfc_component *);
2720 bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **);
2722 bool gfc_is_coindexed (gfc_expr *);
2723 bool gfc_get_corank (gfc_expr *);
2724 bool gfc_has_ultimate_allocatable (gfc_expr *);
2725 bool gfc_has_ultimate_pointer (gfc_expr *);
2727 gfc_expr* gfc_build_intrinsic_call (const char*, locus, unsigned, ...);
2728 gfc_try gfc_check_vardef_context (gfc_expr*, bool, const char*);
2732 extern gfc_code new_st;
2734 void gfc_clear_new_st (void);
2735 gfc_code *gfc_get_code (void);
2736 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2737 void gfc_free_statement (gfc_code *);
2738 void gfc_free_statements (gfc_code *);
2739 void gfc_free_association_list (gfc_association_list *);
2742 gfc_try gfc_resolve_expr (gfc_expr *);
2743 void gfc_resolve (gfc_namespace *);
2744 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2745 int gfc_impure_variable (gfc_symbol *);
2746 int gfc_pure (gfc_symbol *);
2747 int gfc_implicit_pure (gfc_symbol *);
2748 int gfc_elemental (gfc_symbol *);
2749 gfc_try gfc_resolve_iterator (gfc_iterator *, bool);
2750 gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int);
2751 gfc_try gfc_resolve_index (gfc_expr *, int);
2752 gfc_try gfc_resolve_dim_arg (gfc_expr *);
2753 int gfc_is_formal_arg (void);
2754 void gfc_resolve_substring_charlen (gfc_expr *);
2755 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2756 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2757 bool gfc_type_is_extensible (gfc_symbol *sym);
2761 gfc_iterator *gfc_copy_iterator (gfc_iterator *);
2763 void gfc_free_array_spec (gfc_array_spec *);
2764 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2766 gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2767 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2768 gfc_try gfc_resolve_array_spec (gfc_array_spec *, int);
2770 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2772 void gfc_simplify_iterator_var (gfc_expr *);
2773 gfc_try gfc_expand_constructor (gfc_expr *, bool);
2774 int gfc_constant_ac (gfc_expr *);
2775 int gfc_expanded_ac (gfc_expr *);
2776 gfc_try gfc_resolve_character_array_constructor (gfc_expr *);
2777 gfc_try gfc_resolve_array_constructor (gfc_expr *);
2778 gfc_try gfc_check_constructor_type (gfc_expr *);
2779 gfc_try gfc_check_iter_variable (gfc_expr *);
2780 gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *));
2781 gfc_try gfc_array_size (gfc_expr *, mpz_t *);
2782 gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2783 gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2784 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2785 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2786 gfc_try spec_size (gfc_array_spec *, mpz_t *);
2787 gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2788 int gfc_is_compile_time_shape (gfc_array_spec *);
2790 gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *);
2793 /* interface.c -- FIXME: some of these should be in symbol.c */
2794 void gfc_free_interface (gfc_interface *);
2795 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2796 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2797 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
2799 void gfc_check_interfaces (gfc_namespace *);
2800 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2801 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
2802 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2803 gfc_actual_arglist **);
2804 gfc_try gfc_extend_expr (gfc_expr *, bool *);
2805 void gfc_free_formal_arglist (gfc_formal_arglist *);
2806 gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *);
2807 gfc_try gfc_add_interface (gfc_symbol *);
2808 gfc_interface *gfc_current_interface_head (void);
2809 void gfc_set_current_interface_head (gfc_interface *);
2810 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
2811 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
2812 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
2813 int gfc_has_vector_subscript (gfc_expr*);
2816 extern gfc_st_label format_asterisk;
2818 void gfc_free_open (gfc_open *);
2819 gfc_try gfc_resolve_open (gfc_open *);
2820 void gfc_free_close (gfc_close *);
2821 gfc_try gfc_resolve_close (gfc_close *);
2822 void gfc_free_filepos (gfc_filepos *);
2823 gfc_try gfc_resolve_filepos (gfc_filepos *);
2824 void gfc_free_inquire (gfc_inquire *);
2825 gfc_try gfc_resolve_inquire (gfc_inquire *);
2826 void gfc_free_dt (gfc_dt *);
2827 gfc_try gfc_resolve_dt (gfc_dt *, locus *);
2828 void gfc_free_wait (gfc_wait *);
2829 gfc_try gfc_resolve_wait (gfc_wait *);
2832 void gfc_module_init_2 (void);
2833 void gfc_module_done_2 (void);
2834 void gfc_dump_module (const char *, int);
2835 bool gfc_check_access (gfc_access, gfc_access);
2836 void gfc_free_use_stmts (gfc_use_list *);
2839 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2840 symbol_attribute gfc_expr_attr (gfc_expr *);
2841 match gfc_match_rvalue (gfc_expr **);
2842 match gfc_match_varspec (gfc_expr*, int, bool, bool);
2843 int gfc_check_digit (char, int);
2844 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
2847 void gfc_generate_code (gfc_namespace *);
2848 void gfc_generate_module_code (gfc_namespace *);
2851 typedef int (*compare_fn) (void *, void *);
2852 void gfc_insert_bbt (void *, void *, compare_fn);
2853 void gfc_delete_bbt (void *, void *, compare_fn);
2855 /* dump-parse-tree.c */
2856 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
2859 gfc_try gfc_parse_file (void);
2860 void gfc_global_used (gfc_gsymbol *, locus *);
2861 gfc_namespace* gfc_build_block_ns (gfc_namespace *);
2864 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2867 gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
2870 void gfc_add_component_ref (gfc_expr *, const char *);
2871 #define gfc_add_data_component(e) gfc_add_component_ref(e,"_data")
2872 #define gfc_add_vptr_component(e) gfc_add_component_ref(e,"_vptr")
2873 #define gfc_add_hash_component(e) gfc_add_component_ref(e,"_hash")
2874 #define gfc_add_size_component(e) gfc_add_component_ref(e,"_size")
2875 #define gfc_add_def_init_component(e) gfc_add_component_ref(e,"_def_init")
2876 gfc_expr *gfc_class_null_initializer (gfc_typespec *);
2877 unsigned int gfc_hash_value (gfc_symbol *);
2878 gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
2879 gfc_array_spec **, bool);
2880 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
2881 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*,
2882 const char*, bool, locus*);
2883 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*,
2884 const char*, bool, locus*);
2885 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*,
2886 gfc_intrinsic_op, bool,
2888 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
2890 #define CLASS_DATA(sym) sym->ts.u.derived->components
2892 /* frontend-passes.c */
2894 void gfc_run_passes (gfc_namespace *);
2896 typedef int (*walk_code_fn_t) (gfc_code **, int *, void *);
2897 typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *);
2899 int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *);
2900 int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *);
2902 #endif /* GCC_GFORTRAN_H */