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Diffstat (limited to 'gcc/fortran/gfortran.h')
| -rw-r--r-- | gcc/fortran/gfortran.h | 2922 |
1 files changed, 2922 insertions, 0 deletions
diff --git a/gcc/fortran/gfortran.h b/gcc/fortran/gfortran.h new file mode 100644 index 000000000..0c96a8224 --- /dev/null +++ b/gcc/fortran/gfortran.h @@ -0,0 +1,2922 @@ +/* gfortran header file + Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, + 2009, 2010, 2011 + Free Software Foundation, Inc. + Contributed by Andy Vaught + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#ifndef GCC_GFORTRAN_H +#define GCC_GFORTRAN_H + +/* It's probably insane to have this large of a header file, but it + seemed like everything had to be recompiled anyway when a change + was made to a header file, and there were ordering issues with + multiple header files. Besides, Microsoft's winnt.h was 250k last + time I looked, so by comparison this is perfectly reasonable. */ + +/* Declarations common to the front-end and library are put in + libgfortran/libgfortran_frontend.h */ +#include "libgfortran.h" + + +#include "intl.h" +#include "coretypes.h" +#include "input.h" +#include "splay-tree.h" + +/* Major control parameters. */ + +#define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */ +#define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */ +#define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */ +#define GFC_LETTERS 26 /* Number of letters in the alphabet. */ + +#define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */ + + +#define free(x) Use_gfc_free_instead_of_free() +#define gfc_is_whitespace(c) ((c==' ') || (c=='\t')) + +/* Stringization. */ +#define stringize(x) expand_macro(x) +#define expand_macro(x) # x + +/* For the runtime library, a standard prefix is a requirement to + avoid cluttering the namespace with things nobody asked for. It's + ugly to look at and a pain to type when you add the prefix by hand, + so we hide it behind a macro. */ +#define PREFIX(x) "_gfortran_" x +#define PREFIX_LEN 10 + +/* A prefix for internal variables, which are not user-visible. */ +#if !defined (NO_DOT_IN_LABEL) +# define GFC_PREFIX(x) "_F." x +#elif !defined (NO_DOLLAR_IN_LABEL) +# define GFC_PREFIX(x) "_F$" x +#else +# define GFC_PREFIX(x) "_F_" x +#endif + +#define BLANK_COMMON_NAME "__BLNK__" + +/* Macro to initialize an mstring structure. */ +#define minit(s, t) { s, NULL, t } + +/* Structure for storing strings to be matched by gfc_match_string. */ +typedef struct +{ + const char *string; + const char *mp; + int tag; +} +mstring; + + + +/*************************** Enums *****************************/ + +/* Used when matching and resolving data I/O transfer statements. */ + +typedef enum +{ M_READ, M_WRITE, M_PRINT, M_INQUIRE } +io_kind; + +/* The author remains confused to this day about the convention of + returning '0' for 'SUCCESS'... or was it the other way around? The + following enum makes things much more readable. We also start + values off at one instead of zero. */ + +typedef enum +{ SUCCESS = 1, FAILURE } +gfc_try; + +/* These are flags for identifying whether we are reading a character literal + between quotes or normal source code. */ + +typedef enum +{ NONSTRING = 0, INSTRING_WARN, INSTRING_NOWARN } +gfc_instring; + +/* This is returned by gfc_notification_std to know if, given the flags + that were given (-std=, -pedantic) we should issue an error, a warning + or nothing. */ + +typedef enum +{ SILENT, WARNING, ERROR } +notification; + +/* Matchers return one of these three values. The difference between + MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was + successful, but that something non-syntactic is wrong and an error + has already been issued. */ + +typedef enum +{ MATCH_NO = 1, MATCH_YES, MATCH_ERROR } +match; + +/* Used for different Fortran source forms in places like scanner.c. */ +typedef enum +{ FORM_FREE, FORM_FIXED, FORM_UNKNOWN } +gfc_source_form; + +/* Expression node types. */ +typedef enum +{ EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE, + EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC +} +expr_t; + +/* Array types. */ +typedef enum +{ AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED, + AS_ASSUMED_SIZE, AS_IMPLIED_SHAPE, AS_UNKNOWN +} +array_type; + +typedef enum +{ AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN } +ar_type; + +/* Statement label types. */ +typedef enum +{ ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET, + ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT +} +gfc_sl_type; + +/* Intrinsic operators. */ +typedef enum +{ GFC_INTRINSIC_BEGIN = 0, + INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN, + INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES, + INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT, + INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV, + /* ==, /=, >, >=, <, <= */ + INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE, + INTRINSIC_LT, INTRINSIC_LE, + /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */ + INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS, + INTRINSIC_LT_OS, INTRINSIC_LE_OS, + INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN, + INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */ +} +gfc_intrinsic_op; + +/* This macro is the number of intrinsic operators that exist. + Assumptions are made about the numbering of the interface_op enums. */ +#define GFC_INTRINSIC_OPS GFC_INTRINSIC_END + +/* Arithmetic results. */ +typedef enum +{ ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN, + ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT +} +arith; + +/* Statements. */ +typedef enum +{ + ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE, + ST_BACKSPACE, ST_BLOCK, ST_BLOCK_DATA, + ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE, + ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF, + ST_ELSEWHERE, ST_END_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA, + ST_ENDDO, ST_IMPLIED_ENDDO, + ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF, + ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT, + ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE, + ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, + ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, + ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY, ST_SYNC_IMAGES, + ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN, + ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND, + ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT, + ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE, + ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT, + ST_ENUM, ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS, + ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL, + ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL, + ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS, + ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE, + ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED, + ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS, + ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE, + ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK, + ST_OMP_TASKWAIT, ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL, + ST_GET_FCN_CHARACTERISTICS, ST_NONE +} +gfc_statement; + +/* Types of interfaces that we can have. Assignment interfaces are + considered to be intrinsic operators. */ +typedef enum +{ + INTERFACE_NAMELESS = 1, INTERFACE_GENERIC, + INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT +} +interface_type; + +/* Symbol flavors: these are all mutually exclusive. + 10 elements = 4 bits. */ +typedef enum sym_flavor +{ + FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE, + FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST, + FL_VOID +} +sym_flavor; + +/* Procedure types. 7 elements = 3 bits. */ +typedef enum procedure_type +{ PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY, + PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL +} +procedure_type; + +/* Intent types. */ +typedef enum sym_intent +{ INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT +} +sym_intent; + +/* Access types. */ +typedef enum gfc_access +{ ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE +} +gfc_access; + +/* Flags to keep track of where an interface came from. + 3 elements = 2 bits. */ +typedef enum ifsrc +{ IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */ + IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */ + IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement + with explicit interface. */ +} +ifsrc; + +/* Whether a SAVE attribute was set explicitly or implicitly. */ +typedef enum save_state +{ SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT +} +save_state; + +/* Strings for all symbol attributes. We use these for dumping the + parse tree, in error messages, and also when reading and writing + modules. In symbol.c. */ +extern const mstring flavors[]; +extern const mstring procedures[]; +extern const mstring intents[]; +extern const mstring access_types[]; +extern const mstring ifsrc_types[]; +extern const mstring save_status[]; + +/* Enumeration of all the generic intrinsic functions. Used by the + backend for identification of a function. */ + +enum gfc_isym_id +{ + /* GFC_ISYM_NONE is used for intrinsics which will never be seen by + the backend (e.g. KIND). */ + GFC_ISYM_NONE = 0, + GFC_ISYM_ABORT, + GFC_ISYM_ABS, + GFC_ISYM_ACCESS, + GFC_ISYM_ACHAR, + GFC_ISYM_ACOS, + GFC_ISYM_ACOSH, + GFC_ISYM_ADJUSTL, + GFC_ISYM_ADJUSTR, + GFC_ISYM_AIMAG, + GFC_ISYM_AINT, + GFC_ISYM_ALARM, + GFC_ISYM_ALL, + GFC_ISYM_ALLOCATED, + GFC_ISYM_AND, + GFC_ISYM_ANINT, + GFC_ISYM_ANY, + GFC_ISYM_ASIN, + GFC_ISYM_ASINH, + GFC_ISYM_ASSOCIATED, + GFC_ISYM_ATAN, + GFC_ISYM_ATAN2, + GFC_ISYM_ATANH, + GFC_ISYM_BGE, + GFC_ISYM_BGT, + GFC_ISYM_BIT_SIZE, + GFC_ISYM_BLE, + GFC_ISYM_BLT, + GFC_ISYM_BTEST, + GFC_ISYM_CEILING, + GFC_ISYM_CHAR, + GFC_ISYM_CHDIR, + GFC_ISYM_CHMOD, + GFC_ISYM_CMPLX, + GFC_ISYM_COMMAND_ARGUMENT_COUNT, + GFC_ISYM_COMPILER_OPTIONS, + GFC_ISYM_COMPILER_VERSION, + GFC_ISYM_COMPLEX, + GFC_ISYM_CONJG, + GFC_ISYM_CONVERSION, + GFC_ISYM_COS, + GFC_ISYM_COSH, + GFC_ISYM_COUNT, + GFC_ISYM_CPU_TIME, + GFC_ISYM_CSHIFT, + GFC_ISYM_CTIME, + GFC_ISYM_C_SIZEOF, + GFC_ISYM_DATE_AND_TIME, + GFC_ISYM_DBLE, + GFC_ISYM_DIGITS, + GFC_ISYM_DIM, + GFC_ISYM_DOT_PRODUCT, + GFC_ISYM_DPROD, + GFC_ISYM_DSHIFTL, + GFC_ISYM_DSHIFTR, + GFC_ISYM_DTIME, + GFC_ISYM_EOSHIFT, + GFC_ISYM_EPSILON, + GFC_ISYM_ERF, + GFC_ISYM_ERFC, + GFC_ISYM_ERFC_SCALED, + GFC_ISYM_ETIME, + GFC_ISYM_EXECUTE_COMMAND_LINE, + GFC_ISYM_EXIT, + GFC_ISYM_EXP, + GFC_ISYM_EXPONENT, + GFC_ISYM_EXTENDS_TYPE_OF, + GFC_ISYM_FDATE, + GFC_ISYM_FGET, + GFC_ISYM_FGETC, + GFC_ISYM_FLOOR, + GFC_ISYM_FLUSH, + GFC_ISYM_FNUM, + GFC_ISYM_FPUT, + GFC_ISYM_FPUTC, + GFC_ISYM_FRACTION, + GFC_ISYM_FREE, + GFC_ISYM_FSEEK, + GFC_ISYM_FSTAT, + GFC_ISYM_FTELL, + GFC_ISYM_TGAMMA, + GFC_ISYM_GERROR, + GFC_ISYM_GETARG, + GFC_ISYM_GET_COMMAND, + GFC_ISYM_GET_COMMAND_ARGUMENT, + GFC_ISYM_GETCWD, + GFC_ISYM_GETENV, + GFC_ISYM_GET_ENVIRONMENT_VARIABLE, + GFC_ISYM_GETGID, + GFC_ISYM_GETLOG, + GFC_ISYM_GETPID, + GFC_ISYM_GETUID, + GFC_ISYM_GMTIME, + GFC_ISYM_HOSTNM, + GFC_ISYM_HUGE, + GFC_ISYM_HYPOT, + GFC_ISYM_IACHAR, + GFC_ISYM_IALL, + GFC_ISYM_IAND, + GFC_ISYM_IANY, + GFC_ISYM_IARGC, + GFC_ISYM_IBCLR, + GFC_ISYM_IBITS, + GFC_ISYM_IBSET, + GFC_ISYM_ICHAR, + GFC_ISYM_IDATE, + GFC_ISYM_IEOR, + GFC_ISYM_IERRNO, + GFC_ISYM_IMAGE_INDEX, + GFC_ISYM_INDEX, + GFC_ISYM_INT, + GFC_ISYM_INT2, + GFC_ISYM_INT8, + GFC_ISYM_IOR, + GFC_ISYM_IPARITY, + GFC_ISYM_IRAND, + GFC_ISYM_ISATTY, + GFC_ISYM_IS_IOSTAT_END, + GFC_ISYM_IS_IOSTAT_EOR, + GFC_ISYM_ISNAN, + GFC_ISYM_ISHFT, + GFC_ISYM_ISHFTC, + GFC_ISYM_ITIME, + GFC_ISYM_J0, + GFC_ISYM_J1, + GFC_ISYM_JN, + GFC_ISYM_JN2, + GFC_ISYM_KILL, + GFC_ISYM_KIND, + GFC_ISYM_LBOUND, + GFC_ISYM_LCOBOUND, + GFC_ISYM_LEADZ, + GFC_ISYM_LEN, + GFC_ISYM_LEN_TRIM, + GFC_ISYM_LGAMMA, + GFC_ISYM_LGE, + GFC_ISYM_LGT, + GFC_ISYM_LINK, + GFC_ISYM_LLE, + GFC_ISYM_LLT, + GFC_ISYM_LOC, + GFC_ISYM_LOG, + GFC_ISYM_LOG10, + GFC_ISYM_LOGICAL, + GFC_ISYM_LONG, + GFC_ISYM_LSHIFT, + GFC_ISYM_LSTAT, + GFC_ISYM_LTIME, + GFC_ISYM_MALLOC, + GFC_ISYM_MASKL, + GFC_ISYM_MASKR, + GFC_ISYM_MATMUL, + GFC_ISYM_MAX, + GFC_ISYM_MAXEXPONENT, + GFC_ISYM_MAXLOC, + GFC_ISYM_MAXVAL, + GFC_ISYM_MCLOCK, + GFC_ISYM_MCLOCK8, + GFC_ISYM_MERGE, + GFC_ISYM_MERGE_BITS, + GFC_ISYM_MIN, + GFC_ISYM_MINEXPONENT, + GFC_ISYM_MINLOC, + GFC_ISYM_MINVAL, + GFC_ISYM_MOD, + GFC_ISYM_MODULO, + GFC_ISYM_MOVE_ALLOC, + GFC_ISYM_MVBITS, + GFC_ISYM_NEAREST, + GFC_ISYM_NEW_LINE, + GFC_ISYM_NINT, + GFC_ISYM_NORM2, + GFC_ISYM_NOT, + GFC_ISYM_NULL, + GFC_ISYM_NUMIMAGES, + GFC_ISYM_OR, + GFC_ISYM_PACK, + GFC_ISYM_PARITY, + GFC_ISYM_PERROR, + GFC_ISYM_POPCNT, + GFC_ISYM_POPPAR, + GFC_ISYM_PRECISION, + GFC_ISYM_PRESENT, + GFC_ISYM_PRODUCT, + GFC_ISYM_RADIX, + GFC_ISYM_RAND, + GFC_ISYM_RANDOM_NUMBER, + GFC_ISYM_RANDOM_SEED, + GFC_ISYM_RANGE, + GFC_ISYM_REAL, + GFC_ISYM_RENAME, + GFC_ISYM_REPEAT, + GFC_ISYM_RESHAPE, + GFC_ISYM_RRSPACING, + GFC_ISYM_RSHIFT, + GFC_ISYM_SAME_TYPE_AS, + GFC_ISYM_SC_KIND, + GFC_ISYM_SCALE, + GFC_ISYM_SCAN, + GFC_ISYM_SECNDS, + GFC_ISYM_SECOND, + GFC_ISYM_SET_EXPONENT, + GFC_ISYM_SHAPE, + GFC_ISYM_SHIFTA, + GFC_ISYM_SHIFTL, + GFC_ISYM_SHIFTR, + GFC_ISYM_SIGN, + GFC_ISYM_SIGNAL, + GFC_ISYM_SI_KIND, + GFC_ISYM_SIN, + GFC_ISYM_SINH, + GFC_ISYM_SIZE, + GFC_ISYM_SLEEP, + GFC_ISYM_SIZEOF, + GFC_ISYM_SPACING, + GFC_ISYM_SPREAD, + GFC_ISYM_SQRT, + GFC_ISYM_SRAND, + GFC_ISYM_SR_KIND, + GFC_ISYM_STAT, + GFC_ISYM_STORAGE_SIZE, + GFC_ISYM_SUM, + GFC_ISYM_SYMLINK, + GFC_ISYM_SYMLNK, + GFC_ISYM_SYSTEM, + GFC_ISYM_SYSTEM_CLOCK, + GFC_ISYM_TAN, + GFC_ISYM_TANH, + GFC_ISYM_THIS_IMAGE, + GFC_ISYM_TIME, + GFC_ISYM_TIME8, + GFC_ISYM_TINY, + GFC_ISYM_TRAILZ, + GFC_ISYM_TRANSFER, + GFC_ISYM_TRANSPOSE, + GFC_ISYM_TRIM, + GFC_ISYM_TTYNAM, + GFC_ISYM_UBOUND, + GFC_ISYM_UCOBOUND, + GFC_ISYM_UMASK, + GFC_ISYM_UNLINK, + GFC_ISYM_UNPACK, + GFC_ISYM_VERIFY, + GFC_ISYM_XOR, + GFC_ISYM_Y0, + GFC_ISYM_Y1, + GFC_ISYM_YN, + GFC_ISYM_YN2 +}; +typedef enum gfc_isym_id gfc_isym_id; + + +typedef enum +{ + GFC_INIT_REAL_OFF = 0, + GFC_INIT_REAL_ZERO, + GFC_INIT_REAL_NAN, + GFC_INIT_REAL_SNAN, + GFC_INIT_REAL_INF, + GFC_INIT_REAL_NEG_INF +} +init_local_real; + +typedef enum +{ + GFC_INIT_LOGICAL_OFF = 0, + GFC_INIT_LOGICAL_FALSE, + GFC_INIT_LOGICAL_TRUE +} +init_local_logical; + +typedef enum +{ + GFC_INIT_CHARACTER_OFF = 0, + GFC_INIT_CHARACTER_ON +} +init_local_character; + +typedef enum +{ + GFC_INIT_INTEGER_OFF = 0, + GFC_INIT_INTEGER_ON +} +init_local_integer; + +typedef enum +{ + GFC_FCOARRAY_NONE = 0, + GFC_FCOARRAY_SINGLE +} +gfc_fcoarray; + +typedef enum +{ + GFC_ENABLE_REVERSE, + GFC_FORWARD_SET, + GFC_REVERSE_SET, + GFC_INHIBIT_REVERSE +} +gfc_reverse; + +/************************* Structures *****************************/ + +/* Used for keeping things in balanced binary trees. */ +#define BBT_HEADER(self) int priority; struct self *left, *right + +#define NAMED_INTCST(a,b,c,d) a, +#define NAMED_KINDARRAY(a,b,c,d) a, +#define NAMED_FUNCTION(a,b,c,d) a, +typedef enum +{ + ISOFORTRANENV_INVALID = -1, +#include "iso-fortran-env.def" + ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST +} +iso_fortran_env_symbol; +#undef NAMED_INTCST +#undef NAMED_KINDARRAY +#undef NAMED_FUNCTION + +#define NAMED_INTCST(a,b,c,d) a, +#define NAMED_REALCST(a,b,c) a, +#define NAMED_CMPXCST(a,b,c) a, +#define NAMED_LOGCST(a,b,c) a, +#define NAMED_CHARKNDCST(a,b,c) a, +#define NAMED_CHARCST(a,b,c) a, +#define DERIVED_TYPE(a,b,c) a, +#define PROCEDURE(a,b) a, +#define NAMED_FUNCTION(a,b,c,d) a, +typedef enum +{ + ISOCBINDING_INVALID = -1, +#include "iso-c-binding.def" + ISOCBINDING_LAST, + ISOCBINDING_NUMBER = ISOCBINDING_LAST +} +iso_c_binding_symbol; +#undef NAMED_INTCST +#undef NAMED_REALCST +#undef NAMED_CMPXCST +#undef NAMED_LOGCST +#undef NAMED_CHARKNDCST +#undef NAMED_CHARCST +#undef DERIVED_TYPE +#undef PROCEDURE +#undef NAMED_FUNCTION + +typedef enum +{ + INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING +} +intmod_id; + +typedef struct +{ + char name[GFC_MAX_SYMBOL_LEN + 1]; + int value; /* Used for both integer and character values. */ + bt f90_type; +} +CInteropKind_t; + +/* Array of structs, where the structs represent the C interop kinds. + The list will be implemented based on a hash of the kind name since + these could be accessed multiple times. + Declared in trans-types.c as a global, since it's in that file + that the list is initialized. */ +extern CInteropKind_t c_interop_kinds_table[]; + + +/* Structure and list of supported extension attributes. */ +typedef enum +{ + EXT_ATTR_DLLIMPORT = 0, + EXT_ATTR_DLLEXPORT, + EXT_ATTR_STDCALL, + EXT_ATTR_CDECL, + EXT_ATTR_FASTCALL, + EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST +} +ext_attr_id_t; + +typedef struct +{ + const char *name; + unsigned id; + const char *middle_end_name; +} +ext_attr_t; + +extern const ext_attr_t ext_attr_list[]; + +/* Symbol attribute structure. */ +typedef struct +{ + /* Variable attributes. */ + unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1, + optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1, + dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1, + implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1, + contiguous:1; + + /* For CLASS containers, the pointer attribute is sometimes set internally + even though it was not directly specified. In this case, keep the + "real" (original) value here. */ + unsigned class_pointer:1; + + ENUM_BITFIELD (save_state) save:2; + + unsigned data:1, /* Symbol is named in a DATA statement. */ + is_protected:1, /* Symbol has been marked as protected. */ + use_assoc:1, /* Symbol has been use-associated. */ + use_only:1, /* Symbol has been use-associated, with ONLY. */ + use_rename:1, /* Symbol has been use-associated and renamed. */ + imported:1, /* Symbol has been associated by IMPORT. */ + host_assoc:1; /* Symbol has been host associated. */ + + unsigned in_namelist:1, in_common:1, in_equivalence:1; + unsigned function:1, subroutine:1, procedure:1; + unsigned generic:1, generic_copy:1; + unsigned implicit_type:1; /* Type defined via implicit rules. */ + unsigned untyped:1; /* No implicit type could be found. */ + + unsigned is_bind_c:1; /* say if is bound to C. */ + unsigned extension:8; /* extension level of a derived type. */ + unsigned is_class:1; /* is a CLASS container. */ + unsigned class_ok:1; /* is a CLASS object with correct attributes. */ + unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */ + unsigned vtype:1; /* is a derived type of a vtab. */ + + /* These flags are both in the typespec and attribute. The attribute + list is what gets read from/written to a module file. The typespec + is created from a decl being processed. */ + unsigned is_c_interop:1; /* It's c interoperable. */ + unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */ + + /* Function/subroutine attributes */ + unsigned sequence:1, elemental:1, pure:1, recursive:1; + unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1; + + /* This is set if a contained procedure could be declared pure. This is + used for certain optimizations that require the result or arguments + cannot alias. Note that this is zero for PURE procedures. */ + unsigned implicit_pure:1; + + /* This is set if the subroutine doesn't return. Currently, this + is only possible for intrinsic subroutines. */ + unsigned noreturn:1; + + /* Set if this procedure is an alternate entry point. These procedures + don't have any code associated, and the backend will turn them into + thunks to the master function. */ + unsigned entry:1; + + /* Set if this is the master function for a procedure with multiple + entry points. */ + unsigned entry_master:1; + + /* Set if this is the master function for a function with multiple + entry points where characteristics of the entry points differ. */ + unsigned mixed_entry_master:1; + + /* Set if a function must always be referenced by an explicit interface. */ + unsigned always_explicit:1; + + /* Set if the symbol has been referenced in an expression. No further + modification of type or type parameters is permitted. */ + unsigned referenced:1; + + /* Set if this is the symbol for the main program. */ + unsigned is_main_program:1; + + /* Mutually exclusive multibit attributes. */ + ENUM_BITFIELD (gfc_access) access:2; + ENUM_BITFIELD (sym_intent) intent:2; + ENUM_BITFIELD (sym_flavor) flavor:4; + ENUM_BITFIELD (ifsrc) if_source:2; + + ENUM_BITFIELD (procedure_type) proc:3; + + /* Special attributes for Cray pointers, pointees. */ + unsigned cray_pointer:1, cray_pointee:1; + + /* The symbol is a derived type with allocatable components, pointer + components or private components, procedure pointer components, + possibly nested. zero_comp is true if the derived type has no + component at all. */ + unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1, + private_comp:1, zero_comp:1, coarray_comp:1; + + /* This is a temporary selector for SELECT TYPE. */ + unsigned select_type_temporary:1; + + /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */ + unsigned ext_attr:EXT_ATTR_NUM; + + /* The namespace where the attribute has been set. */ + struct gfc_namespace *volatile_ns, *asynchronous_ns; +} +symbol_attribute; + + +/* We need to store source lines as sequences of multibyte source + characters. We define here a type wide enough to hold any multibyte + source character, just like libcpp does. A 32-bit type is enough. */ + +#if HOST_BITS_PER_INT >= 32 +typedef unsigned int gfc_char_t; +#elif HOST_BITS_PER_LONG >= 32 +typedef unsigned long gfc_char_t; +#elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32) +typedef unsigned long long gfc_char_t; +#else +# error "Cannot find an integer type with at least 32 bits" +#endif + + +/* The following three structures are used to identify a location in + the sources. + + gfc_file is used to maintain a tree of the source files and how + they include each other + + gfc_linebuf holds a single line of source code and information + which file it resides in + + locus point to the sourceline and the character in the source + line. +*/ + +typedef struct gfc_file +{ + struct gfc_file *next, *up; + int inclusion_line, line; + char *filename; +} gfc_file; + +typedef struct gfc_linebuf +{ + source_location location; + struct gfc_file *file; + struct gfc_linebuf *next; + + int truncated; + bool dbg_emitted; + + gfc_char_t line[1]; +} gfc_linebuf; + +#define gfc_linebuf_header_size (offsetof (gfc_linebuf, line)) + +#define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location)) + +typedef struct +{ + gfc_char_t *nextc; + gfc_linebuf *lb; +} locus; + +/* In order for the "gfc" format checking to work correctly, you must + have declared a typedef locus first. */ +#if GCC_VERSION >= 4001 +#define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m) +#else +#define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m) +#endif + + +/* Suppress error messages or re-enable them. */ + +void gfc_push_suppress_errors (void); +void gfc_pop_suppress_errors (void); + + +/* Character length structures hold the expression that gives the + length of a character variable. We avoid putting these into + gfc_typespec because doing so prevents us from doing structure + copies and forces us to deallocate any typespecs we create, as well + as structures that contain typespecs. They also can have multiple + character typespecs pointing to them. + + These structures form a singly linked list within the current + namespace and are deallocated with the namespace. It is possible to + end up with gfc_charlen structures that have nothing pointing to them. */ + +typedef struct gfc_charlen +{ + struct gfc_expr *length; + struct gfc_charlen *next; + bool length_from_typespec; /* Length from explicit array ctor typespec? */ + tree backend_decl; + tree passed_length; /* Length argument explicitly passed. */ + + int resolved; +} +gfc_charlen; + +#define gfc_get_charlen() XCNEW (gfc_charlen) + +/* Type specification structure. */ +typedef struct +{ + bt type; + int kind; + + union + { + struct gfc_symbol *derived; /* For derived types only. */ + gfc_charlen *cl; /* For character types only. */ + int pad; /* For hollerith types only. */ + } + u; + + struct gfc_symbol *interface; /* For PROCEDURE declarations. */ + int is_c_interop; + int is_iso_c; + bt f90_type; + bool deferred; +} +gfc_typespec; + +/* Array specification. */ +typedef struct +{ + int rank; /* A rank of zero means that a variable is a scalar. */ + int corank; + array_type type, cotype; + struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS]; + + /* These two fields are used with the Cray Pointer extension. */ + bool cray_pointee; /* True iff this spec belongs to a cray pointee. */ + bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to + AS_EXPLICIT, but we want to remember that we + did this. */ + +} +gfc_array_spec; + +#define gfc_get_array_spec() XCNEW (gfc_array_spec) + + +/* Components of derived types. */ +typedef struct gfc_component +{ + const char *name; + gfc_typespec ts; + + symbol_attribute attr; + gfc_array_spec *as; + + tree backend_decl; + /* Used to cache a FIELD_DECL matching this same component + but applied to a different backend containing type that was + generated by gfc_nonrestricted_type. */ + tree norestrict_decl; + locus loc; + struct gfc_expr *initializer; + struct gfc_component *next; + + /* Needed for procedure pointer components. */ + struct gfc_formal_arglist *formal; + struct gfc_namespace *formal_ns; + struct gfc_typebound_proc *tb; +} +gfc_component; + +#define gfc_get_component() XCNEW (gfc_component) + +/* Formal argument lists are lists of symbols. */ +typedef struct gfc_formal_arglist +{ + /* Symbol representing the argument at this position in the arglist. */ + struct gfc_symbol *sym; + /* Points to the next formal argument. */ + struct gfc_formal_arglist *next; +} +gfc_formal_arglist; + +#define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist) + + +/* The gfc_actual_arglist structure is for actual arguments. */ +typedef struct gfc_actual_arglist +{ + const char *name; + /* Alternate return label when the expr member is null. */ + struct gfc_st_label *label; + + /* This is set to the type of an eventual omitted optional + argument. This is used to determine if a hidden string length + argument has to be added to a function call. */ + bt missing_arg_type; + + struct gfc_expr *expr; + struct gfc_actual_arglist *next; +} +gfc_actual_arglist; + +#define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist) + + +/* Because a symbol can belong to multiple namelists, they must be + linked externally to the symbol itself. */ +typedef struct gfc_namelist +{ + struct gfc_symbol *sym; + struct gfc_namelist *next; +} +gfc_namelist; + +#define gfc_get_namelist() XCNEW (gfc_namelist) + +enum +{ + OMP_LIST_PRIVATE, + OMP_LIST_FIRSTPRIVATE, + OMP_LIST_LASTPRIVATE, + OMP_LIST_COPYPRIVATE, + OMP_LIST_SHARED, + OMP_LIST_COPYIN, + OMP_LIST_PLUS, + OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS, + OMP_LIST_MULT, + OMP_LIST_SUB, + OMP_LIST_AND, + OMP_LIST_OR, + OMP_LIST_EQV, + OMP_LIST_NEQV, + OMP_LIST_MAX, + OMP_LIST_MIN, + OMP_LIST_IAND, + OMP_LIST_IOR, + OMP_LIST_IEOR, + OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR, + OMP_LIST_NUM +}; + +/* Because a symbol can belong to multiple namelists, they must be + linked externally to the symbol itself. */ + +enum gfc_omp_sched_kind +{ + OMP_SCHED_NONE, + OMP_SCHED_STATIC, + OMP_SCHED_DYNAMIC, + OMP_SCHED_GUIDED, + OMP_SCHED_RUNTIME, + OMP_SCHED_AUTO +}; + +enum gfc_omp_default_sharing +{ + OMP_DEFAULT_UNKNOWN, + OMP_DEFAULT_NONE, + OMP_DEFAULT_PRIVATE, + OMP_DEFAULT_SHARED, + OMP_DEFAULT_FIRSTPRIVATE +}; + +typedef struct gfc_omp_clauses +{ + struct gfc_expr *if_expr; + struct gfc_expr *num_threads; + gfc_namelist *lists[OMP_LIST_NUM]; + enum gfc_omp_sched_kind sched_kind; + struct gfc_expr *chunk_size; + enum gfc_omp_default_sharing default_sharing; + int collapse; + bool nowait, ordered, untied; +} +gfc_omp_clauses; + +#define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses) + + +/* The gfc_st_label structure is a BBT attached to a namespace that + records the usage of statement labels within that space. */ + +typedef struct gfc_st_label +{ + BBT_HEADER(gfc_st_label); + + int value; + + gfc_sl_type defined, referenced; + + struct gfc_expr *format; + + tree backend_decl; + + locus where; +} +gfc_st_label; + + +/* gfc_interface()-- Interfaces are lists of symbols strung together. */ +typedef struct gfc_interface +{ + struct gfc_symbol *sym; + locus where; + struct gfc_interface *next; +} +gfc_interface; + +#define gfc_get_interface() XCNEW (gfc_interface) + +/* User operator nodes. These are like stripped down symbols. */ +typedef struct +{ + const char *name; + + gfc_interface *op; + struct gfc_namespace *ns; + gfc_access access; +} +gfc_user_op; + + +/* A list of specific bindings that are associated with a generic spec. */ +typedef struct gfc_tbp_generic +{ + /* The parser sets specific_st, upon resolution we look for the corresponding + gfc_typebound_proc and set specific for further use. */ + struct gfc_symtree* specific_st; + struct gfc_typebound_proc* specific; + + struct gfc_tbp_generic* next; +} +gfc_tbp_generic; + +#define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic) + + +/* Data needed for type-bound procedures. */ +typedef struct gfc_typebound_proc +{ + locus where; /* Where the PROCEDURE/GENERIC definition was. */ + + union + { + struct gfc_symtree* specific; /* The interface if DEFERRED. */ + gfc_tbp_generic* generic; + } + u; + + gfc_access access; + const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */ + + /* The overridden type-bound proc (or GENERIC with this name in the + parent-type) or NULL if non. */ + struct gfc_typebound_proc* overridden; + + /* Once resolved, we use the position of pass_arg in the formal arglist of + the binding-target procedure to identify it. The first argument has + number 1 here, the second 2, and so on. */ + unsigned pass_arg_num; + + unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */ + unsigned non_overridable:1; + unsigned deferred:1; + unsigned is_generic:1; + unsigned function:1, subroutine:1; + unsigned error:1; /* Ignore it, when an error occurred during resolution. */ + unsigned ppc:1; +} +gfc_typebound_proc; + + +/* Symbol nodes. These are important things. They are what the + standard refers to as "entities". The possibly multiple names that + refer to the same entity are accomplished by a binary tree of + symtree structures that is balanced by the red-black method-- more + than one symtree node can point to any given symbol. */ + +typedef struct gfc_symbol +{ + const char *name; /* Primary name, before renaming */ + const char *module; /* Module this symbol came from */ + locus declared_at; + + gfc_typespec ts; + symbol_attribute attr; + + /* The formal member points to the formal argument list if the + symbol is a function or subroutine name. If the symbol is a + generic name, the generic member points to the list of + interfaces. */ + + gfc_interface *generic; + gfc_access component_access; + + gfc_formal_arglist *formal; + struct gfc_namespace *formal_ns; + struct gfc_namespace *f2k_derived; + + struct gfc_expr *value; /* Parameter/Initializer value */ + gfc_array_spec *as; + struct gfc_symbol *result; /* function result symbol */ + gfc_component *components; /* Derived type components */ + + /* Defined only for Cray pointees; points to their pointer. */ + struct gfc_symbol *cp_pointer; + + int entry_id; /* Used in resolve.c for entries. */ + + /* CLASS hashed name for declared and dynamic types in the class. */ + int hash_value; + + struct gfc_symbol *common_next; /* Links for COMMON syms */ + + /* This is in fact a gfc_common_head but it is only used for pointer + comparisons to check if symbols are in the same common block. */ + struct gfc_common_head* common_head; + + /* Make sure setup code for dummy arguments is generated in the correct + order. */ + int dummy_order; + + gfc_namelist *namelist, *namelist_tail; + + /* Change management fields. Symbols that might be modified by the + current statement have the mark member nonzero and are kept in a + singly linked list through the tlink field. Of these symbols, + symbols with old_symbol equal to NULL are symbols created within + the current statement. Otherwise, old_symbol points to a copy of + the old symbol. */ + + struct gfc_symbol *old_symbol, *tlink; + unsigned mark:1, gfc_new:1; + /* Nonzero if all equivalences associated with this symbol have been + processed. */ + unsigned equiv_built:1; + /* Set if this variable is used as an index name in a FORALL. */ + unsigned forall_index:1; + int refs; + struct gfc_namespace *ns; /* namespace containing this symbol */ + + tree backend_decl; + + /* Identity of the intrinsic module the symbol comes from, or + INTMOD_NONE if it's not imported from a intrinsic module. */ + intmod_id from_intmod; + /* Identity of the symbol from intrinsic modules, from enums maintained + separately by each intrinsic module. Used together with from_intmod, + it uniquely identifies a symbol from an intrinsic module. */ + int intmod_sym_id; + + /* This may be repetitive, since the typespec now has a binding + label field. */ + char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1]; + /* Store a reference to the common_block, if this symbol is in one. */ + struct gfc_common_head *common_block; + + /* Link to corresponding association-list if this is an associate name. */ + struct gfc_association_list *assoc; +} +gfc_symbol; + + +/* This structure is used to keep track of symbols in common blocks. */ +typedef struct gfc_common_head +{ + locus where; + char use_assoc, saved, threadprivate; + char name[GFC_MAX_SYMBOL_LEN + 1]; + struct gfc_symbol *head; + char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1]; + int is_bind_c; +} +gfc_common_head; + +#define gfc_get_common_head() XCNEW (gfc_common_head) + + +/* A list of all the alternate entry points for a procedure. */ + +typedef struct gfc_entry_list +{ + /* The symbol for this entry point. */ + gfc_symbol *sym; + /* The zero-based id of this entry point. */ + int id; + /* The LABEL_EXPR marking this entry point. */ + tree label; + /* The next item in the list. */ + struct gfc_entry_list *next; +} +gfc_entry_list; + +#define gfc_get_entry_list() \ + (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list)) + +/* Lists of rename info for the USE statement. */ + +typedef struct gfc_use_rename +{ + char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1]; + struct gfc_use_rename *next; + int found; + gfc_intrinsic_op op; + locus where; +} +gfc_use_rename; + +#define gfc_get_use_rename() XCNEW (gfc_use_rename); + +/* A list of all USE statements in a namespace. */ + +typedef struct gfc_use_list +{ + const char *module_name; + int only_flag; + struct gfc_use_rename *rename; + locus where; + /* Next USE statement. */ + struct gfc_use_list *next; +} +gfc_use_list; + +#define gfc_get_use_list() \ + (gfc_use_list *) gfc_getmem(sizeof(gfc_use_list)) + +/* Within a namespace, symbols are pointed to by symtree nodes that + are linked together in a balanced binary tree. There can be + several symtrees pointing to the same symbol node via USE + statements. */ + +typedef struct gfc_symtree +{ + BBT_HEADER (gfc_symtree); + const char *name; + int ambiguous; + union + { + gfc_symbol *sym; /* Symbol associated with this node */ + gfc_user_op *uop; + gfc_common_head *common; + gfc_typebound_proc *tb; + } + n; +} +gfc_symtree; + +/* A linked list of derived types in the namespace. */ +typedef struct gfc_dt_list +{ + struct gfc_symbol *derived; + struct gfc_dt_list *next; +} +gfc_dt_list; + +#define gfc_get_dt_list() XCNEW (gfc_dt_list) + + /* A list of all derived types. */ + extern gfc_dt_list *gfc_derived_types; + +/* A namespace describes the contents of procedure, module, interface block + or BLOCK construct. */ +/* ??? Anything else use these? */ + +typedef struct gfc_namespace +{ + /* Tree containing all the symbols in this namespace. */ + gfc_symtree *sym_root; + /* Tree containing all the user-defined operators in the namespace. */ + gfc_symtree *uop_root; + /* Tree containing all the common blocks. */ + gfc_symtree *common_root; + + /* Tree containing type-bound procedures. */ + gfc_symtree *tb_sym_root; + /* Type-bound user operators. */ + gfc_symtree *tb_uop_root; + /* For derived-types, store type-bound intrinsic operators here. */ + gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS]; + /* Linked list of finalizer procedures. */ + struct gfc_finalizer *finalizers; + + /* If set_flag[letter] is set, an implicit type has been set for letter. */ + int set_flag[GFC_LETTERS]; + /* Keeps track of the implicit types associated with the letters. */ + gfc_typespec default_type[GFC_LETTERS]; + /* Store the positions of IMPLICIT statements. */ + locus implicit_loc[GFC_LETTERS]; + + /* If this is a namespace of a procedure, this points to the procedure. */ + struct gfc_symbol *proc_name; + /* If this is the namespace of a unit which contains executable + code, this points to it. */ + struct gfc_code *code; + + /* Points to the equivalences set up in this namespace. */ + struct gfc_equiv *equiv, *old_equiv; + + /* Points to the equivalence groups produced by trans_common. */ + struct gfc_equiv_list *equiv_lists; + + gfc_interface *op[GFC_INTRINSIC_OPS]; + + /* Points to the parent namespace, i.e. the namespace of a module or + procedure in which the procedure belonging to this namespace is + contained. The parent namespace points to this namespace either + directly via CONTAINED, or indirectly via the chain built by + SIBLING. */ + struct gfc_namespace *parent; + /* CONTAINED points to the first contained namespace. Sibling + namespaces are chained via SIBLING. */ + struct gfc_namespace *contained, *sibling; + + gfc_common_head blank_common; + gfc_access default_access, operator_access[GFC_INTRINSIC_OPS]; + + gfc_st_label *st_labels; + /* This list holds information about all the data initializers in + this namespace. */ + struct gfc_data *data; + + gfc_charlen *cl_list, *old_cl_list; + + gfc_dt_list *derived_types; + + int save_all, seen_save, seen_implicit_none; + + /* Normally we don't need to refcount namespaces. However when we read + a module containing a function with multiple entry points, this + will appear as several functions with the same formal namespace. */ + int refs; + + /* A list of all alternate entry points to this procedure (or NULL). */ + gfc_entry_list *entries; + + /* A list of USE statements in this namespace. */ + gfc_use_list *use_stmts; + + /* Set to 1 if namespace is a BLOCK DATA program unit. */ + unsigned is_block_data:1; + + /* Set to 1 if namespace is an interface body with "IMPORT" used. */ + unsigned has_import_set:1; + + /* Set to 1 if resolved has been called for this namespace. + Holds -1 during resolution. */ + signed resolved:2; + + /* Set to 1 if code has been generated for this namespace. */ + unsigned translated:1; + + /* Set to 1 if symbols in this namespace should be 'construct entities', + i.e. for BLOCK local variables. */ + unsigned construct_entities:1; +} +gfc_namespace; + +extern gfc_namespace *gfc_current_ns; +extern gfc_namespace *gfc_global_ns_list; + +/* Global symbols are symbols of global scope. Currently we only use + this to detect collisions already when parsing. + TODO: Extend to verify procedure calls. */ + +enum gfc_symbol_type +{ + GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE, + GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA +}; + +typedef struct gfc_gsymbol +{ + BBT_HEADER(gfc_gsymbol); + + const char *name; + const char *sym_name; + const char *mod_name; + const char *binding_label; + enum gfc_symbol_type type; + + int defined, used; + locus where; + gfc_namespace *ns; +} +gfc_gsymbol; + +extern gfc_gsymbol *gfc_gsym_root; + +/* Information on interfaces being built. */ +typedef struct +{ + interface_type type; + gfc_symbol *sym; + gfc_namespace *ns; + gfc_user_op *uop; + gfc_intrinsic_op op; +} +gfc_interface_info; + +extern gfc_interface_info current_interface; + + +/* Array reference. */ + +enum gfc_array_ref_dimen_type +{ + DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_UNKNOWN +}; + +typedef struct gfc_array_ref +{ + ar_type type; + int dimen; /* # of components in the reference */ + int codimen; + bool in_allocate; /* For coarray checks. */ + locus where; + gfc_array_spec *as; + + locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */ + struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS], + *stride[GFC_MAX_DIMENSIONS]; + + enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS]; + + struct gfc_expr *offset; +} +gfc_array_ref; + +#define gfc_get_array_ref() XCNEW (gfc_array_ref) + + +/* Component reference nodes. A variable is stored as an expression + node that points to the base symbol. After that, a singly linked + list of component reference nodes gives the variable's complete + resolution. The array_ref component may be present and comes + before the component component. */ + +typedef enum + { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING } +ref_type; + +typedef struct gfc_ref +{ + ref_type type; + + union + { + struct gfc_array_ref ar; + + struct + { + gfc_component *component; + gfc_symbol *sym; + } + c; + + struct + { + struct gfc_expr *start, *end; /* Substring */ + gfc_charlen *length; + } + ss; + + } + u; + + struct gfc_ref *next; +} +gfc_ref; + +#define gfc_get_ref() XCNEW (gfc_ref) + + +/* Structures representing intrinsic symbols and their arguments lists. */ +typedef struct gfc_intrinsic_arg +{ + char name[GFC_MAX_SYMBOL_LEN + 1]; + + gfc_typespec ts; + unsigned optional:1, value:1; + ENUM_BITFIELD (sym_intent) intent:2; + gfc_actual_arglist *actual; + + struct gfc_intrinsic_arg *next; + +} +gfc_intrinsic_arg; + + +/* Specifies the various kinds of check functions used to verify the + argument lists of intrinsic functions. fX with X an integer refer + to check functions of intrinsics with X arguments. f1m is used for + the MAX and MIN intrinsics which can have an arbitrary number of + arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as + these have special semantics. */ + +typedef union +{ + gfc_try (*f0)(void); + gfc_try (*f1)(struct gfc_expr *); + gfc_try (*f1m)(gfc_actual_arglist *); + gfc_try (*f2)(struct gfc_expr *, struct gfc_expr *); + gfc_try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *); + gfc_try (*f3ml)(gfc_actual_arglist *); + gfc_try (*f3red)(gfc_actual_arglist *); + gfc_try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, + struct gfc_expr *); + gfc_try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, + struct gfc_expr *, struct gfc_expr *); +} +gfc_check_f; + +/* Like gfc_check_f, these specify the type of the simplification + function associated with an intrinsic. The fX are just like in + gfc_check_f. cc is used for type conversion functions. */ + +typedef union +{ + struct gfc_expr *(*f0)(void); + struct gfc_expr *(*f1)(struct gfc_expr *); + struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *); + struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *, + struct gfc_expr *); + struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *, + struct gfc_expr *, struct gfc_expr *); + struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *, + struct gfc_expr *, struct gfc_expr *, + struct gfc_expr *); + struct gfc_expr *(*cc)(struct gfc_expr *, bt, int); +} +gfc_simplify_f; + +/* Again like gfc_check_f, these specify the type of the resolution + function associated with an intrinsic. The fX are just like in + gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */ + +typedef union +{ + void (*f0)(struct gfc_expr *); + void (*f1)(struct gfc_expr *, struct gfc_expr *); + void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *); + void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *); + void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, + struct gfc_expr *); + void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, + struct gfc_expr *, struct gfc_expr *); + void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, + struct gfc_expr *, struct gfc_expr *, struct gfc_expr *); + void (*s1)(struct gfc_code *); +} +gfc_resolve_f; + + +typedef struct gfc_intrinsic_sym +{ + const char *name, *lib_name; + gfc_intrinsic_arg *formal; + gfc_typespec ts; + unsigned elemental:1, inquiry:1, transformational:1, pure:1, + generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1, + from_module:1; + + int standard; + + gfc_simplify_f simplify; + gfc_check_f check; + gfc_resolve_f resolve; + struct gfc_intrinsic_sym *specific_head, *next; + gfc_isym_id id; + +} +gfc_intrinsic_sym; + + +/* Expression nodes. The expression node types deserve explanations, + since the last couple can be easily misconstrued: + + EXPR_OP Operator node pointing to one or two other nodes + EXPR_FUNCTION Function call, symbol points to function's name + EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex + EXPR_VARIABLE An Lvalue with a root symbol and possible reference list + which expresses structure, array and substring refs. + EXPR_NULL The NULL pointer value (which also has a basic type). + EXPR_SUBSTRING A substring of a constant string + EXPR_STRUCTURE A structure constructor + EXPR_ARRAY An array constructor. + EXPR_COMPCALL Function (or subroutine) call of a procedure pointer + component or type-bound procedure. */ + +#include <gmp.h> +#include <mpfr.h> +#include <mpc.h> +#define GFC_RND_MODE GMP_RNDN +#define GFC_MPC_RND_MODE MPC_RNDNN + +typedef splay_tree gfc_constructor_base; + +typedef struct gfc_expr +{ + expr_t expr_type; + + gfc_typespec ts; /* These two refer to the overall expression */ + + int rank; + mpz_t *shape; /* Can be NULL if shape is unknown at compile time */ + + /* Nonnull for functions and structure constructors, may also used to hold the + base-object for component calls. */ + gfc_symtree *symtree; + + gfc_ref *ref; + + locus where; + + /* is_boz is true if the integer is regarded as BOZ bitpatten and is_snan + denotes a signalling not-a-number. */ + unsigned int is_boz : 1, is_snan : 1; + + /* Sometimes, when an error has been emitted, it is necessary to prevent + it from recurring. */ + unsigned int error : 1; + + /* Mark an expression where a user operator has been substituted by + a function call in interface.c(gfc_extend_expr). */ + unsigned int user_operator : 1; + + /* Mark an expression as being a MOLD argument of ALLOCATE. */ + unsigned int mold : 1; + + /* If an expression comes from a Hollerith constant or compile-time + evaluation of a transfer statement, it may have a prescribed target- + memory representation, and these cannot always be backformed from + the value. */ + struct + { + int length; + char *string; + } + representation; + + union + { + int logical; + + io_kind iokind; + + mpz_t integer; + + mpfr_t real; + + mpc_t complex; + + struct + { + gfc_intrinsic_op op; + gfc_user_op *uop; + struct gfc_expr *op1, *op2; + } + op; + + struct + { + gfc_actual_arglist *actual; + const char *name; /* Points to the ultimate name of the function */ + gfc_intrinsic_sym *isym; + gfc_symbol *esym; + } + function; + + struct + { + gfc_actual_arglist* actual; + const char* name; + /* Base-object, whose component was called. NULL means that it should + be taken from symtree/ref. */ + struct gfc_expr* base_object; + gfc_typebound_proc* tbp; /* Should overlap with esym. */ + + /* For type-bound operators, we want to call PASS procedures but already + have the full arglist; mark this, so that it is not extended by the + PASS argument. */ + unsigned ignore_pass:1; + + /* Do assign-calls rather than calls, that is appropriate dependency + checking. */ + unsigned assign:1; + } + compcall; + + struct + { + int length; + gfc_char_t *string; + } + character; + + gfc_constructor_base constructor; + } + value; + +} +gfc_expr; + + +#define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t))) + +/* Structures for information associated with different kinds of + numbers. The first set of integer parameters define all there is + to know about a particular kind. The rest of the elements are + computed from the first elements. */ + +typedef struct +{ + /* Values really representable by the target. */ + mpz_t huge, pedantic_min_int, min_int; + + int kind, radix, digits, bit_size, range; + + /* True if the C type of the given name maps to this precision. + Note that more than one bit can be set. */ + unsigned int c_char : 1; + unsigned int c_short : 1; + unsigned int c_int : 1; + unsigned int c_long : 1; + unsigned int c_long_long : 1; +} +gfc_integer_info; + +extern gfc_integer_info gfc_integer_kinds[]; + + +typedef struct +{ + int kind, bit_size; + + /* True if the C++ type bool, C99 type _Bool, maps to this precision. */ + unsigned int c_bool : 1; +} +gfc_logical_info; + +extern gfc_logical_info gfc_logical_kinds[]; + + +typedef struct +{ + mpfr_t epsilon, huge, tiny, subnormal; + int kind, radix, digits, min_exponent, max_exponent; + int range, precision; + + /* The precision of the type as reported by GET_MODE_PRECISION. */ + int mode_precision; + + /* True if the C type of the given name maps to this precision. + Note that more than one bit can be set. */ + unsigned int c_float : 1; + unsigned int c_double : 1; + unsigned int c_long_double : 1; + unsigned int c_float128 : 1; +} +gfc_real_info; + +extern gfc_real_info gfc_real_kinds[]; + +typedef struct +{ + int kind, bit_size; + const char *name; +} +gfc_character_info; + +extern gfc_character_info gfc_character_kinds[]; + + +/* Equivalence structures. Equivalent lvalues are linked along the + *eq pointer, equivalence sets are strung along the *next node. */ +typedef struct gfc_equiv +{ + struct gfc_equiv *next, *eq; + gfc_expr *expr; + const char *module; + int used; +} +gfc_equiv; + +#define gfc_get_equiv() XCNEW (gfc_equiv) + +/* Holds a single equivalence member after processing. */ +typedef struct gfc_equiv_info +{ + gfc_symbol *sym; + HOST_WIDE_INT offset; + HOST_WIDE_INT length; + struct gfc_equiv_info *next; +} gfc_equiv_info; + +/* Holds equivalence groups, after they have been processed. */ +typedef struct gfc_equiv_list +{ + gfc_equiv_info *equiv; + struct gfc_equiv_list *next; +} gfc_equiv_list; + +/* gfc_case stores the selector list of a case statement. The *low + and *high pointers can point to the same expression in the case of + a single value. If *high is NULL, the selection is from *low + upwards, if *low is NULL the selection is *high downwards. + + This structure has separate fields to allow single and double linked + lists of CASEs at the same time. The singe linked list along the NEXT + field is a list of cases for a single CASE label. The double linked + list along the LEFT/RIGHT fields is used to detect overlap and to + build a table of the cases for SELECT constructs with a CHARACTER + case expression. */ + +typedef struct gfc_case +{ + /* Where we saw this case. */ + locus where; + int n; + + /* Case range values. If (low == high), it's a single value. If one of + the labels is NULL, it's an unbounded case. If both are NULL, this + represents the default case. */ + gfc_expr *low, *high; + + /* Only used for SELECT TYPE. */ + gfc_typespec ts; + + /* Next case label in the list of cases for a single CASE label. */ + struct gfc_case *next; + + /* Used for detecting overlap, and for code generation. */ + struct gfc_case *left, *right; + + /* True if this case label can never be matched. */ + int unreachable; +} +gfc_case; + +#define gfc_get_case() XCNEW (gfc_case) + + +typedef struct +{ + gfc_expr *var, *start, *end, *step; +} +gfc_iterator; + +#define gfc_get_iterator() XCNEW (gfc_iterator) + + +/* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */ + +typedef struct gfc_alloc +{ + gfc_expr *expr; + struct gfc_alloc *next; +} +gfc_alloc; + +#define gfc_get_alloc() XCNEW (gfc_alloc) + + +typedef struct +{ + gfc_expr *unit, *file, *status, *access, *form, *recl, + *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert, + *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit; + gfc_st_label *err; +} +gfc_open; + + +typedef struct +{ + gfc_expr *unit, *status, *iostat, *iomsg; + gfc_st_label *err; +} +gfc_close; + + +typedef struct +{ + gfc_expr *unit, *iostat, *iomsg; + gfc_st_label *err; +} +gfc_filepos; + + +typedef struct +{ + gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named, + *name, *access, *sequential, *direct, *form, *formatted, + *unformatted, *recl, *nextrec, *blank, *position, *action, *read, + *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos, + *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id; + + gfc_st_label *err; + +} +gfc_inquire; + + +typedef struct +{ + gfc_expr *unit, *iostat, *iomsg, *id; + gfc_st_label *err, *end, *eor; +} +gfc_wait; + + +typedef struct +{ + gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg, + *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round, + *sign, *extra_comma, *dt_io_kind; + + gfc_symbol *namelist; + /* A format_label of `format_asterisk' indicates the "*" format */ + gfc_st_label *format_label; + gfc_st_label *err, *end, *eor; + + locus eor_where, end_where, err_where; +} +gfc_dt; + + +typedef struct gfc_forall_iterator +{ + gfc_expr *var, *start, *end, *stride; + struct gfc_forall_iterator *next; +} +gfc_forall_iterator; + + +/* Linked list to store associations in an ASSOCIATE statement. */ + +typedef struct gfc_association_list +{ + struct gfc_association_list *next; + + /* Whether this is association to a variable that can be changed; otherwise, + it's association to an expression and the name may not be used as + lvalue. */ + unsigned variable:1; + + /* True if this struct is currently only linked to from a gfc_symbol rather + than as part of a real list in gfc_code->ext.block.assoc. This may + happen for SELECT TYPE temporaries and must be considered + for memory handling. */ + unsigned dangling:1; + + char name[GFC_MAX_SYMBOL_LEN + 1]; + gfc_symtree *st; /* Symtree corresponding to name. */ + locus where; + + gfc_expr *target; +} +gfc_association_list; +#define gfc_get_association_list() XCNEW (gfc_association_list) + + +/* Executable statements that fill gfc_code structures. */ +typedef enum +{ + EXEC_NOP = 1, EXEC_END_BLOCK, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, + EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP, + EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN, + EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN, + EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT, EXEC_BLOCK, + EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, EXEC_CALL_PPC, + EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, EXEC_SELECT_TYPE, + EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES, + EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT, + EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END, + EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH, + EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER, + EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO, + EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE, + EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE, + EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT, + EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT +} +gfc_exec_op; + +typedef struct gfc_code +{ + gfc_exec_op op; + + struct gfc_code *block, *next; + locus loc; + + gfc_st_label *here, *label1, *label2, *label3; + gfc_symtree *symtree; + gfc_expr *expr1, *expr2, *expr3; + /* A name isn't sufficient to identify a subroutine, we need the actual + symbol for the interface definition. + const char *sub_name; */ + gfc_symbol *resolved_sym; + gfc_intrinsic_sym *resolved_isym; + + union + { + gfc_actual_arglist *actual; + gfc_iterator *iterator; + + struct + { + gfc_typespec ts; + gfc_alloc *list; + } + alloc; + + struct + { + gfc_namespace *ns; + gfc_association_list *assoc; + gfc_case *case_list; + } + block; + + gfc_open *open; + gfc_close *close; + gfc_filepos *filepos; + gfc_inquire *inquire; + gfc_wait *wait; + gfc_dt *dt; + gfc_forall_iterator *forall_iterator; + struct gfc_code *which_construct; + int stop_code; + gfc_entry_list *entry; + gfc_omp_clauses *omp_clauses; + const char *omp_name; + gfc_namelist *omp_namelist; + bool omp_bool; + } + ext; /* Points to additional structures required by statement */ + + /* Cycle and break labels in constructs. */ + tree cycle_label; + tree exit_label; +} +gfc_code; + + +/* Storage for DATA statements. */ +typedef struct gfc_data_variable +{ + gfc_expr *expr; + gfc_iterator iter; + struct gfc_data_variable *list, *next; +} +gfc_data_variable; + + +typedef struct gfc_data_value +{ + mpz_t repeat; + gfc_expr *expr; + struct gfc_data_value *next; +} +gfc_data_value; + + +typedef struct gfc_data +{ + gfc_data_variable *var; + gfc_data_value *value; + locus where; + + struct gfc_data *next; +} +gfc_data; + + +/* Structure for holding compile options */ +typedef struct +{ + char *module_dir; + gfc_source_form source_form; + /* Maximum line lengths in fixed- and free-form source, respectively. + When fixed_line_length or free_line_length are 0, the whole line is used, + regardless of length. + + If the user requests a fixed_line_length <7 then gfc_init_options() + emits a fatal error. */ + int fixed_line_length; + int free_line_length; + /* Maximum number of continuation lines in fixed- and free-form source, + respectively. */ + int max_continue_fixed; + int max_continue_free; + int max_identifier_length; + int dump_fortran_original; + int dump_fortran_optimized; + + int warn_aliasing; + int warn_ampersand; + int gfc_warn_conversion; + int warn_conversion_extra; + int warn_implicit_interface; + int warn_implicit_procedure; + int warn_line_truncation; + int warn_surprising; + int warn_tabs; + int warn_underflow; + int warn_intrinsic_shadow; + int warn_intrinsics_std; + int warn_character_truncation; + int warn_array_temp; + int warn_align_commons; + int warn_real_q_constant; + int warn_unused_dummy_argument; + int max_errors; + + int flag_all_intrinsics; + int flag_default_double; + int flag_default_integer; + int flag_default_real; + int flag_dollar_ok; + int flag_underscoring; + int flag_second_underscore; + int flag_implicit_none; + int flag_max_stack_var_size; + int flag_max_array_constructor; + int flag_range_check; + int flag_pack_derived; + int flag_repack_arrays; + int flag_preprocessed; + int flag_f2c; + int flag_automatic; + int flag_backslash; + int flag_backtrace; + int flag_allow_leading_underscore; + int flag_dump_core; + int flag_external_blas; + int blas_matmul_limit; + int flag_cray_pointer; + int flag_d_lines; + int gfc_flag_openmp; + int flag_sign_zero; + int flag_module_private; + int flag_recursive; + int flag_init_local_zero; + int flag_init_integer; + int flag_init_integer_value; + int flag_init_real; + int flag_init_logical; + int flag_init_character; + char flag_init_character_value; + int flag_align_commons; + int flag_whole_file; + int flag_protect_parens; + int flag_realloc_lhs; + + int fpe; + int rtcheck; + gfc_fcoarray coarray; + + int warn_std; + int allow_std; + int convert; + int record_marker; + int max_subrecord_length; +} +gfc_option_t; + +extern gfc_option_t gfc_option; + +/* Constructor nodes for array and structure constructors. */ +typedef struct gfc_constructor +{ + gfc_constructor_base base; + mpz_t offset; /* Offset within a constructor, used as + key within base. */ + + gfc_expr *expr; + gfc_iterator *iterator; + locus where; + + union + { + gfc_component *component; /* Record the component being initialized. */ + } + n; + mpz_t repeat; /* Record the repeat number of initial values in data + statement like "data a/5*10/". */ +} +gfc_constructor; + + +typedef struct iterator_stack +{ + gfc_symtree *variable; + mpz_t value; + struct iterator_stack *prev; +} +iterator_stack; +extern iterator_stack *iter_stack; + + +/* Used for (possibly nested) SELECT TYPE statements. */ +typedef struct gfc_select_type_stack +{ + gfc_symbol *selector; /* Current selector variable. */ + gfc_symtree *tmp; /* Current temporary variable. */ + struct gfc_select_type_stack *prev; /* Previous element on stack. */ +} +gfc_select_type_stack; +extern gfc_select_type_stack *select_type_stack; +#define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack) + + +/* Node in the linked list used for storing finalizer procedures. */ + +typedef struct gfc_finalizer +{ + struct gfc_finalizer* next; + locus where; /* Where the FINAL declaration occurred. */ + + /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding + symtree and later need only that. This way, we can access and call the + finalizers from every context as they should be "always accessible". I + don't make this a union because we need the information whether proc_sym is + still referenced or not for dereferencing it on deleting a gfc_finalizer + structure. */ + gfc_symbol* proc_sym; + gfc_symtree* proc_tree; +} +gfc_finalizer; +#define gfc_get_finalizer() XCNEW (gfc_finalizer) + + +/************************ Function prototypes *************************/ + +/* decl.c */ +bool gfc_in_match_data (void); +match gfc_match_char_spec (gfc_typespec *); + +/* scanner.c */ +void gfc_scanner_done_1 (void); +void gfc_scanner_init_1 (void); + +void gfc_add_include_path (const char *, bool, bool); +void gfc_add_intrinsic_modules_path (const char *); +void gfc_release_include_path (void); +FILE *gfc_open_included_file (const char *, bool, bool); +FILE *gfc_open_intrinsic_module (const char *); + +int gfc_at_end (void); +int gfc_at_eof (void); +int gfc_at_bol (void); +int gfc_at_eol (void); +void gfc_advance_line (void); +int gfc_check_include (void); +int gfc_define_undef_line (void); + +int gfc_wide_is_printable (gfc_char_t); +int gfc_wide_is_digit (gfc_char_t); +int gfc_wide_fits_in_byte (gfc_char_t); +gfc_char_t gfc_wide_tolower (gfc_char_t); +gfc_char_t gfc_wide_toupper (gfc_char_t); +size_t gfc_wide_strlen (const gfc_char_t *); +int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t); +gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t); +char *gfc_widechar_to_char (const gfc_char_t *, int); +gfc_char_t *gfc_char_to_widechar (const char *); + +#define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n) + +void gfc_skip_comments (void); +gfc_char_t gfc_next_char_literal (gfc_instring); +gfc_char_t gfc_next_char (void); +char gfc_next_ascii_char (void); +gfc_char_t gfc_peek_char (void); +char gfc_peek_ascii_char (void); +void gfc_error_recovery (void); +void gfc_gobble_whitespace (void); +gfc_try gfc_new_file (void); +const char * gfc_read_orig_filename (const char *, const char **); + +extern gfc_source_form gfc_current_form; +extern const char *gfc_source_file; +extern locus gfc_current_locus; + +void gfc_start_source_files (void); +void gfc_end_source_files (void); + +/* misc.c */ +void *gfc_getmem (size_t) ATTRIBUTE_MALLOC; +void gfc_free (void *); +int gfc_terminal_width (void); +void gfc_clear_ts (gfc_typespec *); +FILE *gfc_open_file (const char *); +const char *gfc_basic_typename (bt); +const char *gfc_typename (gfc_typespec *); +const char *gfc_op2string (gfc_intrinsic_op); +const char *gfc_code2string (const mstring *, int); +int gfc_string2code (const mstring *, const char *); +const char *gfc_intent_string (sym_intent); + +void gfc_init_1 (void); +void gfc_init_2 (void); +void gfc_done_1 (void); +void gfc_done_2 (void); + +int get_c_kind (const char *, CInteropKind_t *); + +/* options.c */ +unsigned int gfc_option_lang_mask (void); +void gfc_init_options_struct (struct gcc_options *); +void gfc_init_options (unsigned int, + struct cl_decoded_option *); +bool gfc_handle_option (size_t, const char *, int, int, location_t, + const struct cl_option_handlers *); +bool gfc_post_options (const char **); +char *gfc_get_option_string (void); + +/* f95-lang.c */ +void gfc_maybe_initialize_eh (void); + +/* iresolve.c */ +const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1; +bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *); + +/* error.c */ + +typedef struct gfc_error_buf +{ + int flag; + size_t allocated, index; + char *message; +} gfc_error_buf; + +void gfc_error_init_1 (void); +void gfc_buffer_error (int); + +const char *gfc_print_wide_char (gfc_char_t); + +void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2); +void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2); +void gfc_clear_warning (void); +void gfc_warning_check (void); + +void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2); +void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2); +void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2); +void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2); +void gfc_clear_error (void); +int gfc_error_check (void); +int gfc_error_flag_test (void); + +notification gfc_notification_std (int); +gfc_try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3); + +/* A general purpose syntax error. */ +#define gfc_syntax_error(ST) \ + gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST)); + +void gfc_push_error (gfc_error_buf *); +void gfc_pop_error (gfc_error_buf *); +void gfc_free_error (gfc_error_buf *); + +void gfc_get_errors (int *, int *); +void gfc_errors_to_warnings (int); + +/* arith.c */ +void gfc_arith_init_1 (void); +void gfc_arith_done_1 (void); +arith gfc_check_integer_range (mpz_t p, int kind); +bool gfc_check_character_range (gfc_char_t, int); + +/* trans-types.c */ +gfc_try gfc_check_any_c_kind (gfc_typespec *); +int gfc_validate_kind (bt, int, bool); +int gfc_get_int_kind_from_width_isofortranenv (int size); +int gfc_get_real_kind_from_width_isofortranenv (int size); +tree gfc_get_derived_type (gfc_symbol * derived); +extern int gfc_index_integer_kind; +extern int gfc_default_integer_kind; +extern int gfc_max_integer_kind; +extern int gfc_default_real_kind; +extern int gfc_default_double_kind; +extern int gfc_default_character_kind; +extern int gfc_default_logical_kind; +extern int gfc_default_complex_kind; +extern int gfc_c_int_kind; +extern int gfc_intio_kind; +extern int gfc_charlen_int_kind; +extern int gfc_numeric_storage_size; +extern int gfc_character_storage_size; + +/* symbol.c */ +void gfc_clear_new_implicit (void); +gfc_try gfc_add_new_implicit_range (int, int); +gfc_try gfc_merge_new_implicit (gfc_typespec *); +void gfc_set_implicit_none (void); +void gfc_check_function_type (gfc_namespace *); +bool gfc_is_intrinsic_typename (const char *); + +gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *); +gfc_try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *); + +void gfc_set_sym_referenced (gfc_symbol *); + +gfc_try gfc_add_attribute (symbol_attribute *, locus *); +gfc_try gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *); +gfc_try gfc_add_allocatable (symbol_attribute *, locus *); +gfc_try gfc_add_codimension (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_contiguous (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_dimension (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_external (symbol_attribute *, locus *); +gfc_try gfc_add_intrinsic (symbol_attribute *, locus *); +gfc_try gfc_add_optional (symbol_attribute *, locus *); +gfc_try gfc_add_pointer (symbol_attribute *, locus *); +gfc_try gfc_add_cray_pointer (symbol_attribute *, locus *); +gfc_try gfc_add_cray_pointee (symbol_attribute *, locus *); +match gfc_mod_pointee_as (gfc_array_spec *); +gfc_try gfc_add_protected (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_result (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_save (symbol_attribute *, save_state, const char *, locus *); +gfc_try gfc_add_threadprivate (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_saved_common (symbol_attribute *, locus *); +gfc_try gfc_add_target (symbol_attribute *, locus *); +gfc_try gfc_add_dummy (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_generic (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_common (symbol_attribute *, locus *); +gfc_try gfc_add_in_common (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_data (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_in_namelist (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_sequence (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_elemental (symbol_attribute *, locus *); +gfc_try gfc_add_pure (symbol_attribute *, locus *); +gfc_try gfc_add_recursive (symbol_attribute *, locus *); +gfc_try gfc_add_function (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_subroutine (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_volatile (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_asynchronous (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where); +gfc_try gfc_add_abstract (symbol_attribute* attr, locus* where); + +gfc_try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *); +gfc_try gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int); +gfc_try gfc_add_extension (symbol_attribute *, locus *); +gfc_try gfc_add_value (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *); +gfc_try gfc_add_entry (symbol_attribute *, const char *, locus *); +gfc_try gfc_add_procedure (symbol_attribute *, procedure_type, + const char *, locus *); +gfc_try gfc_add_intent (symbol_attribute *, sym_intent, locus *); +gfc_try gfc_add_explicit_interface (gfc_symbol *, ifsrc, + gfc_formal_arglist *, locus *); +gfc_try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *); + +void gfc_clear_attr (symbol_attribute *); +gfc_try gfc_missing_attr (symbol_attribute *, locus *); +gfc_try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *); + +gfc_try gfc_add_component (gfc_symbol *, const char *, gfc_component **); +gfc_symbol *gfc_use_derived (gfc_symbol *); +gfc_symtree *gfc_use_derived_tree (gfc_symtree *); +gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool); + +gfc_st_label *gfc_get_st_label (int); +void gfc_free_st_label (gfc_st_label *); +void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *); +gfc_try gfc_reference_st_label (gfc_st_label *, gfc_sl_type); + +gfc_namespace *gfc_get_namespace (gfc_namespace *, int); +gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *); +gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *); +void gfc_delete_symtree (gfc_symtree **, const char *); +gfc_symtree *gfc_get_unique_symtree (gfc_namespace *); +gfc_user_op *gfc_get_uop (const char *); +gfc_user_op *gfc_find_uop (const char *, gfc_namespace *); +void gfc_free_symbol (gfc_symbol *); +void gfc_release_symbol (gfc_symbol *); +gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *); +gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *); +int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **); +int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **); +int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **); +gfc_try verify_c_interop (gfc_typespec *); +gfc_try verify_c_interop_param (gfc_symbol *); +gfc_try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *); +gfc_try verify_bind_c_derived_type (gfc_symbol *); +gfc_try verify_com_block_vars_c_interop (gfc_common_head *); +void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *); +gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int); +int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool); +int gfc_get_ha_symbol (const char *, gfc_symbol **); +int gfc_get_ha_sym_tree (const char *, gfc_symtree **); + +void gfc_undo_symbols (void); +void gfc_commit_symbols (void); +void gfc_commit_symbol (gfc_symbol *); +gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *); +void gfc_free_charlen (gfc_charlen *, gfc_charlen *); +void gfc_free_namespace (gfc_namespace *); + +void gfc_symbol_init_2 (void); +void gfc_symbol_done_2 (void); + +void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *)); +void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *)); +void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *)); +void gfc_save_all (gfc_namespace *); + +void gfc_enforce_clean_symbol_state (void); +void gfc_free_dt_list (void); + + +gfc_gsymbol *gfc_get_gsymbol (const char *); +gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *); + +gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*); +gfc_symbol* gfc_get_derived_super_type (gfc_symbol*); +gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*); +bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *); +bool gfc_type_compatible (gfc_typespec *, gfc_typespec *); + +void gfc_copy_formal_args (gfc_symbol *, gfc_symbol *); +void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *); +void gfc_copy_formal_args_ppc (gfc_component *, gfc_symbol *); + +void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */ + +gfc_try gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus); +gfc_namespace* gfc_find_proc_namespace (gfc_namespace*); + +bool gfc_is_associate_pointer (gfc_symbol*); + +/* intrinsic.c -- true if working in an init-expr, false otherwise. */ +extern bool gfc_init_expr_flag; + +/* Given a symbol that we have decided is intrinsic, mark it as such + by placing it into a special module that is otherwise impossible to + read or write. */ + +#define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)") + +void gfc_intrinsic_init_1 (void); +void gfc_intrinsic_done_1 (void); + +char gfc_type_letter (bt); +gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *); +gfc_try gfc_convert_type (gfc_expr *, gfc_typespec *, int); +gfc_try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int); +gfc_try gfc_convert_chartype (gfc_expr *, gfc_typespec *); +int gfc_generic_intrinsic (const char *); +int gfc_specific_intrinsic (const char *); +bool gfc_is_intrinsic (gfc_symbol*, int, locus); +int gfc_intrinsic_actual_ok (const char *, const bool); +gfc_intrinsic_sym *gfc_find_function (const char *); +gfc_intrinsic_sym *gfc_find_subroutine (const char *); +gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id); + +match gfc_intrinsic_func_interface (gfc_expr *, int); +match gfc_intrinsic_sub_interface (gfc_code *, int); + +void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool); +gfc_try gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**, + bool, locus); + +/* match.c -- FIXME */ +void gfc_free_iterator (gfc_iterator *, int); +void gfc_free_forall_iterator (gfc_forall_iterator *); +void gfc_free_alloc_list (gfc_alloc *); +void gfc_free_namelist (gfc_namelist *); +void gfc_free_equiv (gfc_equiv *); +void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *); +void gfc_free_data (gfc_data *); +void gfc_free_case_list (gfc_case *); + +/* matchexp.c -- FIXME too? */ +gfc_expr *gfc_get_parentheses (gfc_expr *); + +/* openmp.c */ +struct gfc_omp_saved_state { void *ptrs[2]; int ints[1]; }; +void gfc_free_omp_clauses (gfc_omp_clauses *); +void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *); +void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *); +void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *); +void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *); +void gfc_omp_save_and_clear_state (struct gfc_omp_saved_state *); +void gfc_omp_restore_state (struct gfc_omp_saved_state *); + +/* expr.c */ +void gfc_free_actual_arglist (gfc_actual_arglist *); +gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *); +const char *gfc_extract_int (gfc_expr *, int *); +bool is_subref_array (gfc_expr *); +bool gfc_is_simply_contiguous (gfc_expr *, bool); + +gfc_expr *gfc_build_conversion (gfc_expr *); +void gfc_free_ref_list (gfc_ref *); +void gfc_type_convert_binary (gfc_expr *, int); +int gfc_is_constant_expr (gfc_expr *); +gfc_try gfc_simplify_expr (gfc_expr *, int); +int gfc_has_vector_index (gfc_expr *); + +gfc_expr *gfc_get_expr (void); +gfc_expr *gfc_get_array_expr (bt type, int kind, locus *); +gfc_expr *gfc_get_null_expr (locus *); +gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *); +gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *); +gfc_expr *gfc_get_constant_expr (bt, int, locus *); +gfc_expr *gfc_get_character_expr (int, locus *, const char *, int len); +gfc_expr *gfc_get_int_expr (int, locus *, int); +gfc_expr *gfc_get_logical_expr (int, locus *, bool); +gfc_expr *gfc_get_iokind_expr (locus *, io_kind); + +void gfc_clear_shape (mpz_t *shape, int rank); +void gfc_free_shape (mpz_t **shape, int rank); +void gfc_free_expr (gfc_expr *); +void gfc_replace_expr (gfc_expr *, gfc_expr *); +mpz_t *gfc_copy_shape (mpz_t *, int); +mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *); +gfc_expr *gfc_copy_expr (gfc_expr *); +gfc_ref* gfc_copy_ref (gfc_ref*); + +gfc_try gfc_specification_expr (gfc_expr *); + +int gfc_numeric_ts (gfc_typespec *); +int gfc_kind_max (gfc_expr *, gfc_expr *); + +gfc_try gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3; +gfc_try gfc_check_assign (gfc_expr *, gfc_expr *, int); +gfc_try gfc_check_pointer_assign (gfc_expr *, gfc_expr *); +gfc_try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *); + +bool gfc_has_default_initializer (gfc_symbol *); +gfc_expr *gfc_default_initializer (gfc_typespec *); +gfc_expr *gfc_get_variable_expr (gfc_symtree *); +gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *); + +gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr); + +bool gfc_traverse_expr (gfc_expr *, gfc_symbol *, + bool (*)(gfc_expr *, gfc_symbol *, int*), + int); +void gfc_expr_set_symbols_referenced (gfc_expr *); +gfc_try gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool); +void gfc_expr_replace_symbols (gfc_expr *, gfc_symbol *); +void gfc_expr_replace_comp (gfc_expr *, gfc_component *); + +bool gfc_is_proc_ptr_comp (gfc_expr *, gfc_component **); + +bool gfc_is_coindexed (gfc_expr *); +int gfc_get_corank (gfc_expr *); +bool gfc_has_ultimate_allocatable (gfc_expr *); +bool gfc_has_ultimate_pointer (gfc_expr *); + +gfc_expr* gfc_build_intrinsic_call (gfc_namespace *, gfc_isym_id, const char*, + locus, unsigned, ...); +gfc_try gfc_check_vardef_context (gfc_expr*, bool, const char*); + + +/* st.c */ +extern gfc_code new_st; + +void gfc_clear_new_st (void); +gfc_code *gfc_get_code (void); +gfc_code *gfc_append_code (gfc_code *, gfc_code *); +void gfc_free_statement (gfc_code *); +void gfc_free_statements (gfc_code *); +void gfc_free_association_list (gfc_association_list *); + +/* resolve.c */ +gfc_try gfc_resolve_expr (gfc_expr *); +void gfc_resolve (gfc_namespace *); +void gfc_resolve_blocks (gfc_code *, gfc_namespace *); +int gfc_impure_variable (gfc_symbol *); +int gfc_pure (gfc_symbol *); +int gfc_implicit_pure (gfc_symbol *); +int gfc_elemental (gfc_symbol *); +gfc_try gfc_resolve_iterator (gfc_iterator *, bool); +gfc_try find_forall_index (gfc_expr *, gfc_symbol *, int); +gfc_try gfc_resolve_index (gfc_expr *, int); +gfc_try gfc_resolve_dim_arg (gfc_expr *); +int gfc_is_formal_arg (void); +void gfc_resolve_substring_charlen (gfc_expr *); +match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *); +gfc_expr *gfc_expr_to_initialize (gfc_expr *); +bool gfc_type_is_extensible (gfc_symbol *sym); + + +/* array.c */ +gfc_iterator *gfc_copy_iterator (gfc_iterator *); + +void gfc_free_array_spec (gfc_array_spec *); +gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *); + +gfc_try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *); +gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *); +gfc_try gfc_resolve_array_spec (gfc_array_spec *, int); + +int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *); + +void gfc_simplify_iterator_var (gfc_expr *); +gfc_try gfc_expand_constructor (gfc_expr *, bool); +int gfc_constant_ac (gfc_expr *); +int gfc_expanded_ac (gfc_expr *); +gfc_try gfc_resolve_character_array_constructor (gfc_expr *); +gfc_try gfc_resolve_array_constructor (gfc_expr *); +gfc_try gfc_check_constructor_type (gfc_expr *); +gfc_try gfc_check_iter_variable (gfc_expr *); +gfc_try gfc_check_constructor (gfc_expr *, gfc_try (*)(gfc_expr *)); +gfc_try gfc_array_size (gfc_expr *, mpz_t *); +gfc_try gfc_array_dimen_size (gfc_expr *, int, mpz_t *); +gfc_try gfc_array_ref_shape (gfc_array_ref *, mpz_t *); +gfc_array_ref *gfc_find_array_ref (gfc_expr *); +tree gfc_conv_array_initializer (tree type, gfc_expr *); +gfc_try spec_size (gfc_array_spec *, mpz_t *); +gfc_try spec_dimen_size (gfc_array_spec *, int, mpz_t *); +int gfc_is_compile_time_shape (gfc_array_spec *); + +gfc_try gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *); + + +/* interface.c -- FIXME: some of these should be in symbol.c */ +void gfc_free_interface (gfc_interface *); +int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *); +int gfc_compare_types (gfc_typespec *, gfc_typespec *); +int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int, + char *, int); +void gfc_check_interfaces (gfc_namespace *); +void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *); +void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *); +gfc_symbol *gfc_search_interface (gfc_interface *, int, + gfc_actual_arglist **); +gfc_try gfc_extend_expr (gfc_expr *, bool *); +void gfc_free_formal_arglist (gfc_formal_arglist *); +gfc_try gfc_extend_assign (gfc_code *, gfc_namespace *); +gfc_try gfc_add_interface (gfc_symbol *); +gfc_interface *gfc_current_interface_head (void); +void gfc_set_current_interface_head (gfc_interface *); +gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*); +bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*); +bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus); +int gfc_has_vector_subscript (gfc_expr*); +gfc_intrinsic_op gfc_equivalent_op (gfc_intrinsic_op); + +/* io.c */ +extern gfc_st_label format_asterisk; + +void gfc_free_open (gfc_open *); +gfc_try gfc_resolve_open (gfc_open *); +void gfc_free_close (gfc_close *); +gfc_try gfc_resolve_close (gfc_close *); +void gfc_free_filepos (gfc_filepos *); +gfc_try gfc_resolve_filepos (gfc_filepos *); +void gfc_free_inquire (gfc_inquire *); +gfc_try gfc_resolve_inquire (gfc_inquire *); +void gfc_free_dt (gfc_dt *); +gfc_try gfc_resolve_dt (gfc_dt *, locus *); +void gfc_free_wait (gfc_wait *); +gfc_try gfc_resolve_wait (gfc_wait *); + +/* module.c */ +void gfc_module_init_2 (void); +void gfc_module_done_2 (void); +void gfc_dump_module (const char *, int); +bool gfc_check_symbol_access (gfc_symbol *); +void gfc_free_use_stmts (gfc_use_list *); + +/* primary.c */ +symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *); +symbol_attribute gfc_expr_attr (gfc_expr *); +match gfc_match_rvalue (gfc_expr **); +match gfc_match_varspec (gfc_expr*, int, bool, bool); +int gfc_check_digit (char, int); +bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *); + +/* trans.c */ +void gfc_generate_code (gfc_namespace *); +void gfc_generate_module_code (gfc_namespace *); + +/* bbt.c */ +typedef int (*compare_fn) (void *, void *); +void gfc_insert_bbt (void *, void *, compare_fn); +void gfc_delete_bbt (void *, void *, compare_fn); + +/* dump-parse-tree.c */ +void gfc_dump_parse_tree (gfc_namespace *, FILE *); + +/* parse.c */ +gfc_try gfc_parse_file (void); +void gfc_global_used (gfc_gsymbol *, locus *); +gfc_namespace* gfc_build_block_ns (gfc_namespace *); + +/* dependency.c */ +int gfc_dep_compare_expr (gfc_expr *, gfc_expr *); + +/* check.c */ +gfc_try gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*); + +/* class.c */ +void gfc_add_component_ref (gfc_expr *, const char *); +#define gfc_add_data_component(e) gfc_add_component_ref(e,"_data") +#define gfc_add_vptr_component(e) gfc_add_component_ref(e,"_vptr") +#define gfc_add_hash_component(e) gfc_add_component_ref(e,"_hash") +#define gfc_add_size_component(e) gfc_add_component_ref(e,"_size") +#define gfc_add_def_init_component(e) gfc_add_component_ref(e,"_def_init") +gfc_expr *gfc_class_null_initializer (gfc_typespec *); +unsigned int gfc_hash_value (gfc_symbol *); +gfc_try gfc_build_class_symbol (gfc_typespec *, symbol_attribute *, + gfc_array_spec **, bool); +gfc_symbol *gfc_find_derived_vtab (gfc_symbol *); +gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, gfc_try*, + const char*, bool, locus*); +gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, gfc_try*, + const char*, bool, locus*); +gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, gfc_try*, + gfc_intrinsic_op, bool, + locus*); +gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*); + +#define CLASS_DATA(sym) sym->ts.u.derived->components + +/* frontend-passes.c */ + +void gfc_run_passes (gfc_namespace *); + +typedef int (*walk_code_fn_t) (gfc_code **, int *, void *); +typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *); + +int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *); +int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *); + +#endif /* GCC_GFORTRAN_H */ |