1 /* gfortran header file 2 Copyright (C) 2000-2019 Free Software Foundation, Inc. 3 Contributed by Andy Vaught 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it under 8 the terms of the GNU General Public License as published by the Free 9 Software Foundation; either version 3, or (at your option) any later 10 version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #ifndef GCC_GFORTRAN_H 22 #define GCC_GFORTRAN_H 23 24 /* It's probably insane to have this large of a header file, but it 25 seemed like everything had to be recompiled anyway when a change 26 was made to a header file, and there were ordering issues with 27 multiple header files. Besides, Microsoft's winnt.h was 250k last 28 time I looked, so by comparison this is perfectly reasonable. */ 29 30 #ifndef GCC_CORETYPES_H 31 #error "gfortran.h must be included after coretypes.h" 32 #endif 33 34 /* In order for the format checking to accept the Fortran front end 35 diagnostic framework extensions, you must include this file before 36 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE 37 in c-common.h. */ 38 #undef GCC_DIAG_STYLE 39 #define GCC_DIAG_STYLE __gcc_gfc__ 40 #if defined(GCC_DIAGNOSTIC_CORE_H) 41 #error \ 42 In order for the format checking to accept the Fortran front end diagnostic \ 43 framework extensions, you must include this file before diagnostic-core.h, \ 44 not after. 45 #endif 46 47 /* Declarations common to the front-end and library are put in 48 libgfortran/libgfortran_frontend.h */ 49 #include "libgfortran.h" 50 51 52 #include "intl.h" 53 #include "splay-tree.h" 54 55 /* Major control parameters. */ 56 57 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */ 58 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */ 59 60 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */ 61 62 63 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t') || (c=='\f')) 64 65 /* Macros to check for groups of structure-like types and flavors since 66 derived types, structures, maps, unions are often treated similarly. */ 67 #define gfc_bt_struct(t) \ 68 ((t) == BT_DERIVED || (t) == BT_UNION) 69 #define gfc_fl_struct(f) \ 70 ((f) == FL_DERIVED || (f) == FL_UNION || (f) == FL_STRUCT) 71 #define case_bt_struct case BT_DERIVED: case BT_UNION 72 #define case_fl_struct case FL_DERIVED: case FL_UNION: case FL_STRUCT 73 74 /* Stringization. */ 75 #define stringize(x) expand_macro(x) 76 #define expand_macro(x) # x 77 78 /* For the runtime library, a standard prefix is a requirement to 79 avoid cluttering the namespace with things nobody asked for. It's 80 ugly to look at and a pain to type when you add the prefix by hand, 81 so we hide it behind a macro. */ 82 #define PREFIX(x) "_gfortran_" x 83 #define PREFIX_LEN 10 84 85 /* A prefix for internal variables, which are not user-visible. */ 86 #if !defined (NO_DOT_IN_LABEL) 87 # define GFC_PREFIX(x) "_F." x 88 #elif !defined (NO_DOLLAR_IN_LABEL) 89 # define GFC_PREFIX(x) "_F$" x 90 #else 91 # define GFC_PREFIX(x) "_F_" x 92 #endif 93 94 #define BLANK_COMMON_NAME "__BLNK__" 95 96 /* Macro to initialize an mstring structure. */ 97 #define minit(s, t) { s, NULL, t } 98 99 /* Structure for storing strings to be matched by gfc_match_string. */ 100 typedef struct 101 { 102 const char *string; 103 const char *mp; 104 int tag; 105 } 106 mstring; 107 108 109 110 /*************************** Enums *****************************/ 111 112 /* Used when matching and resolving data I/O transfer statements. */ 113 114 enum io_kind 115 { M_READ, M_WRITE, M_PRINT, M_INQUIRE }; 116 117 118 /* These are flags for identifying whether we are reading a character literal 119 between quotes or normal source code. */ 120 121 enum gfc_instring 122 { NONSTRING = 0, INSTRING_WARN, INSTRING_NOWARN }; 123 124 /* This is returned by gfc_notification_std to know if, given the flags 125 that were given (-std=, -pedantic) we should issue an error, a warning 126 or nothing. */ 127 128 enum notification 129 { SILENT, WARNING, ERROR }; 130 131 /* Matchers return one of these three values. The difference between 132 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was 133 successful, but that something non-syntactic is wrong and an error 134 has already been issued. */ 135 136 enum match 137 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }; 138 139 /* Used for different Fortran source forms in places like scanner.c. */ 140 enum gfc_source_form 141 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }; 142 143 /* Expression node types. */ 144 enum expr_t 145 { EXPR_UNKNOWN = 0, EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE, 146 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC 147 }; 148 149 /* Array types. */ 150 enum array_type 151 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED, 152 AS_ASSUMED_SIZE, AS_IMPLIED_SHAPE, AS_ASSUMED_RANK, 153 AS_UNKNOWN 154 }; 155 156 enum ar_type 157 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }; 158 159 /* Statement label types. ST_LABEL_DO_TARGET is used for obsolescent warnings 160 related to shared DO terminations and DO targets which are neither END DO 161 nor CONTINUE; otherwise it is identical to ST_LABEL_TARGET. */ 162 enum gfc_sl_type 163 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET, ST_LABEL_DO_TARGET, 164 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT 165 }; 166 167 /* Intrinsic operators. */ 168 enum gfc_intrinsic_op 169 { GFC_INTRINSIC_BEGIN = 0, 170 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN, 171 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES, 172 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT, 173 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV, 174 /* ==, /=, >, >=, <, <= */ 175 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE, 176 INTRINSIC_LT, INTRINSIC_LE, 177 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */ 178 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS, 179 INTRINSIC_LT_OS, INTRINSIC_LE_OS, 180 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES, 181 GFC_INTRINSIC_END, /* Sentinel */ 182 /* User defined derived type pseudo operators. These are set beyond the 183 sentinel so that they are excluded from module_read and module_write. */ 184 INTRINSIC_FORMATTED, INTRINSIC_UNFORMATTED 185 }; 186 187 /* This macro is the number of intrinsic operators that exist. 188 Assumptions are made about the numbering of the interface_op enums. */ 189 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END 190 191 /* Arithmetic results. */ 192 enum arith 193 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN, 194 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT, 195 ARITH_WRONGCONCAT 196 }; 197 198 /* Statements. */ 199 enum gfc_statement 200 { 201 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE, 202 ST_BACKSPACE, ST_BLOCK, ST_BLOCK_DATA, 203 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE, 204 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF, 205 ST_ELSEWHERE, ST_END_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA, 206 ST_ENDDO, ST_IMPLIED_ENDDO, ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, 207 ST_END_FUNCTION, ST_ENDIF, ST_END_INTERFACE, ST_END_MODULE, ST_END_SUBMODULE, 208 ST_END_PROGRAM, ST_END_SELECT, ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, 209 ST_ENTRY, ST_EQUIVALENCE, ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, 210 ST_FORMAT, ST_FUNCTION, ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, 211 ST_IMPORT, ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY, 212 ST_SYNC_IMAGES, ST_PARAMETER, ST_MODULE, ST_SUBMODULE, ST_MODULE_PROC, 213 ST_NAMELIST, ST_NULLIFY, ST_OPEN, ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, 214 ST_READ, ST_RETURN, ST_REWIND, ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, 215 ST_WHERE_BLOCK, ST_WHERE, ST_WAIT, ST_WRITE, ST_ASSIGNMENT, 216 ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE, ST_SIMPLE_IF, 217 ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT, ST_ENUM, 218 ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS, 219 ST_STRUCTURE_DECL, ST_END_STRUCTURE, 220 ST_UNION, ST_END_UNION, ST_MAP, ST_END_MAP, 221 ST_OACC_PARALLEL_LOOP, ST_OACC_END_PARALLEL_LOOP, ST_OACC_PARALLEL, 222 ST_OACC_END_PARALLEL, ST_OACC_KERNELS, ST_OACC_END_KERNELS, ST_OACC_DATA, 223 ST_OACC_END_DATA, ST_OACC_HOST_DATA, ST_OACC_END_HOST_DATA, ST_OACC_LOOP, 224 ST_OACC_END_LOOP, ST_OACC_DECLARE, ST_OACC_UPDATE, ST_OACC_WAIT, 225 ST_OACC_CACHE, ST_OACC_KERNELS_LOOP, ST_OACC_END_KERNELS_LOOP, 226 ST_OACC_ENTER_DATA, ST_OACC_EXIT_DATA, ST_OACC_ROUTINE, 227 ST_OACC_ATOMIC, ST_OACC_END_ATOMIC, 228 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_ATOMIC, 229 ST_OMP_END_CRITICAL, ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, 230 ST_OMP_END_PARALLEL, ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS, 231 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE, 232 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED, 233 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS, 234 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE, 235 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK, 236 ST_OMP_TASKWAIT, ST_OMP_TASKYIELD, ST_OMP_CANCEL, ST_OMP_CANCELLATION_POINT, 237 ST_OMP_TASKGROUP, ST_OMP_END_TASKGROUP, ST_OMP_SIMD, ST_OMP_END_SIMD, 238 ST_OMP_DO_SIMD, ST_OMP_END_DO_SIMD, ST_OMP_PARALLEL_DO_SIMD, 239 ST_OMP_END_PARALLEL_DO_SIMD, ST_OMP_DECLARE_SIMD, ST_OMP_DECLARE_REDUCTION, 240 ST_OMP_TARGET, ST_OMP_END_TARGET, ST_OMP_TARGET_DATA, ST_OMP_END_TARGET_DATA, 241 ST_OMP_TARGET_UPDATE, ST_OMP_DECLARE_TARGET, 242 ST_OMP_TEAMS, ST_OMP_END_TEAMS, ST_OMP_DISTRIBUTE, ST_OMP_END_DISTRIBUTE, 243 ST_OMP_DISTRIBUTE_SIMD, ST_OMP_END_DISTRIBUTE_SIMD, 244 ST_OMP_DISTRIBUTE_PARALLEL_DO, ST_OMP_END_DISTRIBUTE_PARALLEL_DO, 245 ST_OMP_DISTRIBUTE_PARALLEL_DO_SIMD, ST_OMP_END_DISTRIBUTE_PARALLEL_DO_SIMD, 246 ST_OMP_TARGET_TEAMS, ST_OMP_END_TARGET_TEAMS, ST_OMP_TEAMS_DISTRIBUTE, 247 ST_OMP_END_TEAMS_DISTRIBUTE, ST_OMP_TEAMS_DISTRIBUTE_SIMD, 248 ST_OMP_END_TEAMS_DISTRIBUTE_SIMD, ST_OMP_TARGET_TEAMS_DISTRIBUTE, 249 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE, ST_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD, 250 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_SIMD, ST_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO, 251 ST_OMP_END_TEAMS_DISTRIBUTE_PARALLEL_DO, 252 ST_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO, 253 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO, 254 ST_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 255 ST_OMP_END_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 256 ST_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 257 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 258 ST_OMP_TARGET_PARALLEL, ST_OMP_END_TARGET_PARALLEL, 259 ST_OMP_TARGET_PARALLEL_DO, ST_OMP_END_TARGET_PARALLEL_DO, 260 ST_OMP_TARGET_PARALLEL_DO_SIMD, ST_OMP_END_TARGET_PARALLEL_DO_SIMD, 261 ST_OMP_TARGET_ENTER_DATA, ST_OMP_TARGET_EXIT_DATA, 262 ST_OMP_TARGET_SIMD, ST_OMP_END_TARGET_SIMD, 263 ST_OMP_TASKLOOP, ST_OMP_END_TASKLOOP, 264 ST_OMP_TASKLOOP_SIMD, ST_OMP_END_TASKLOOP_SIMD, ST_OMP_ORDERED_DEPEND, 265 ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL, 266 ST_GET_FCN_CHARACTERISTICS, ST_LOCK, ST_UNLOCK, ST_EVENT_POST, 267 ST_EVENT_WAIT, ST_FAIL_IMAGE, ST_FORM_TEAM, ST_CHANGE_TEAM, 268 ST_END_TEAM, ST_SYNC_TEAM, ST_NONE 269 }; 270 271 /* Types of interfaces that we can have. Assignment interfaces are 272 considered to be intrinsic operators. */ 273 enum interface_type 274 { 275 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC, 276 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT, 277 INTERFACE_DTIO 278 }; 279 280 /* Symbol flavors: these are all mutually exclusive. 281 12 elements = 4 bits. */ 282 enum sym_flavor 283 { 284 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE, 285 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST, 286 FL_UNION, FL_STRUCT, FL_VOID 287 }; 288 289 /* Procedure types. 7 elements = 3 bits. */ 290 enum procedure_type 291 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY, 292 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL 293 }; 294 295 /* Intent types. Note that these values are also used in another enum in 296 decl.c (match_attr_spec). */ 297 enum sym_intent 298 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT 299 }; 300 301 /* Access types. */ 302 enum gfc_access 303 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE 304 }; 305 306 /* Flags to keep track of where an interface came from. 307 3 elements = 2 bits. */ 308 enum ifsrc 309 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */ 310 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */ 311 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement 312 with explicit interface. */ 313 }; 314 315 /* Whether a SAVE attribute was set explicitly or implicitly. */ 316 enum save_state 317 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT 318 }; 319 320 /* OpenACC 'routine' directive's level of parallelism. */ 321 enum oacc_routine_lop 322 { OACC_ROUTINE_LOP_NONE = 0, 323 OACC_ROUTINE_LOP_GANG, 324 OACC_ROUTINE_LOP_WORKER, 325 OACC_ROUTINE_LOP_VECTOR, 326 OACC_ROUTINE_LOP_SEQ, 327 OACC_ROUTINE_LOP_ERROR 328 }; 329 330 /* Strings for all symbol attributes. We use these for dumping the 331 parse tree, in error messages, and also when reading and writing 332 modules. In symbol.c. */ 333 extern const mstring flavors[]; 334 extern const mstring procedures[]; 335 extern const mstring intents[]; 336 extern const mstring access_types[]; 337 extern const mstring ifsrc_types[]; 338 extern const mstring save_status[]; 339 340 /* Strings for DTIO procedure names. In symbol.c. */ 341 extern const mstring dtio_procs[]; 342 343 enum dtio_codes 344 { DTIO_RF = 0, DTIO_WF, DTIO_RUF, DTIO_WUF }; 345 346 /* Enumeration of all the generic intrinsic functions. Used by the 347 backend for identification of a function. */ 348 349 enum gfc_isym_id 350 { 351 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by 352 the backend (e.g. KIND). */ 353 GFC_ISYM_NONE = 0, 354 GFC_ISYM_ABORT, 355 GFC_ISYM_ABS, 356 GFC_ISYM_ACCESS, 357 GFC_ISYM_ACHAR, 358 GFC_ISYM_ACOS, 359 GFC_ISYM_ACOSH, 360 GFC_ISYM_ADJUSTL, 361 GFC_ISYM_ADJUSTR, 362 GFC_ISYM_AIMAG, 363 GFC_ISYM_AINT, 364 GFC_ISYM_ALARM, 365 GFC_ISYM_ALL, 366 GFC_ISYM_ALLOCATED, 367 GFC_ISYM_AND, 368 GFC_ISYM_ANINT, 369 GFC_ISYM_ANY, 370 GFC_ISYM_ASIN, 371 GFC_ISYM_ASINH, 372 GFC_ISYM_ASSOCIATED, 373 GFC_ISYM_ATAN, 374 GFC_ISYM_ATAN2, 375 GFC_ISYM_ATANH, 376 GFC_ISYM_ATOMIC_ADD, 377 GFC_ISYM_ATOMIC_AND, 378 GFC_ISYM_ATOMIC_CAS, 379 GFC_ISYM_ATOMIC_DEF, 380 GFC_ISYM_ATOMIC_FETCH_ADD, 381 GFC_ISYM_ATOMIC_FETCH_AND, 382 GFC_ISYM_ATOMIC_FETCH_OR, 383 GFC_ISYM_ATOMIC_FETCH_XOR, 384 GFC_ISYM_ATOMIC_OR, 385 GFC_ISYM_ATOMIC_REF, 386 GFC_ISYM_ATOMIC_XOR, 387 GFC_ISYM_BGE, 388 GFC_ISYM_BGT, 389 GFC_ISYM_BIT_SIZE, 390 GFC_ISYM_BLE, 391 GFC_ISYM_BLT, 392 GFC_ISYM_BTEST, 393 GFC_ISYM_CAF_GET, 394 GFC_ISYM_CAF_SEND, 395 GFC_ISYM_CEILING, 396 GFC_ISYM_CHAR, 397 GFC_ISYM_CHDIR, 398 GFC_ISYM_CHMOD, 399 GFC_ISYM_CMPLX, 400 GFC_ISYM_CO_BROADCAST, 401 GFC_ISYM_CO_MAX, 402 GFC_ISYM_CO_MIN, 403 GFC_ISYM_CO_REDUCE, 404 GFC_ISYM_CO_SUM, 405 GFC_ISYM_COMMAND_ARGUMENT_COUNT, 406 GFC_ISYM_COMPILER_OPTIONS, 407 GFC_ISYM_COMPILER_VERSION, 408 GFC_ISYM_COMPLEX, 409 GFC_ISYM_CONJG, 410 GFC_ISYM_CONVERSION, 411 GFC_ISYM_COS, 412 GFC_ISYM_COSH, 413 GFC_ISYM_COTAN, 414 GFC_ISYM_COUNT, 415 GFC_ISYM_CPU_TIME, 416 GFC_ISYM_CSHIFT, 417 GFC_ISYM_CTIME, 418 GFC_ISYM_C_ASSOCIATED, 419 GFC_ISYM_C_F_POINTER, 420 GFC_ISYM_C_F_PROCPOINTER, 421 GFC_ISYM_C_FUNLOC, 422 GFC_ISYM_C_LOC, 423 GFC_ISYM_C_SIZEOF, 424 GFC_ISYM_DATE_AND_TIME, 425 GFC_ISYM_DBLE, 426 GFC_ISYM_DIGITS, 427 GFC_ISYM_DIM, 428 GFC_ISYM_DOT_PRODUCT, 429 GFC_ISYM_DPROD, 430 GFC_ISYM_DSHIFTL, 431 GFC_ISYM_DSHIFTR, 432 GFC_ISYM_DTIME, 433 GFC_ISYM_EOSHIFT, 434 GFC_ISYM_EPSILON, 435 GFC_ISYM_ERF, 436 GFC_ISYM_ERFC, 437 GFC_ISYM_ERFC_SCALED, 438 GFC_ISYM_ETIME, 439 GFC_ISYM_EVENT_QUERY, 440 GFC_ISYM_EXECUTE_COMMAND_LINE, 441 GFC_ISYM_EXIT, 442 GFC_ISYM_EXP, 443 GFC_ISYM_EXPONENT, 444 GFC_ISYM_EXTENDS_TYPE_OF, 445 GFC_ISYM_FAILED_IMAGES, 446 GFC_ISYM_FDATE, 447 GFC_ISYM_FE_RUNTIME_ERROR, 448 GFC_ISYM_FGET, 449 GFC_ISYM_FGETC, 450 GFC_ISYM_FINDLOC, 451 GFC_ISYM_FLOOR, 452 GFC_ISYM_FLUSH, 453 GFC_ISYM_FNUM, 454 GFC_ISYM_FPUT, 455 GFC_ISYM_FPUTC, 456 GFC_ISYM_FRACTION, 457 GFC_ISYM_FREE, 458 GFC_ISYM_FSEEK, 459 GFC_ISYM_FSTAT, 460 GFC_ISYM_FTELL, 461 GFC_ISYM_TGAMMA, 462 GFC_ISYM_GERROR, 463 GFC_ISYM_GETARG, 464 GFC_ISYM_GET_COMMAND, 465 GFC_ISYM_GET_COMMAND_ARGUMENT, 466 GFC_ISYM_GETCWD, 467 GFC_ISYM_GETENV, 468 GFC_ISYM_GET_ENVIRONMENT_VARIABLE, 469 GFC_ISYM_GETGID, 470 GFC_ISYM_GETLOG, 471 GFC_ISYM_GETPID, 472 GFC_ISYM_GET_TEAM, 473 GFC_ISYM_GETUID, 474 GFC_ISYM_GMTIME, 475 GFC_ISYM_HOSTNM, 476 GFC_ISYM_HUGE, 477 GFC_ISYM_HYPOT, 478 GFC_ISYM_IACHAR, 479 GFC_ISYM_IALL, 480 GFC_ISYM_IAND, 481 GFC_ISYM_IANY, 482 GFC_ISYM_IARGC, 483 GFC_ISYM_IBCLR, 484 GFC_ISYM_IBITS, 485 GFC_ISYM_IBSET, 486 GFC_ISYM_ICHAR, 487 GFC_ISYM_IDATE, 488 GFC_ISYM_IEOR, 489 GFC_ISYM_IERRNO, 490 GFC_ISYM_IMAGE_INDEX, 491 GFC_ISYM_IMAGE_STATUS, 492 GFC_ISYM_INDEX, 493 GFC_ISYM_INT, 494 GFC_ISYM_INT2, 495 GFC_ISYM_INT8, 496 GFC_ISYM_IOR, 497 GFC_ISYM_IPARITY, 498 GFC_ISYM_IRAND, 499 GFC_ISYM_ISATTY, 500 GFC_ISYM_IS_CONTIGUOUS, 501 GFC_ISYM_IS_IOSTAT_END, 502 GFC_ISYM_IS_IOSTAT_EOR, 503 GFC_ISYM_ISNAN, 504 GFC_ISYM_ISHFT, 505 GFC_ISYM_ISHFTC, 506 GFC_ISYM_ITIME, 507 GFC_ISYM_J0, 508 GFC_ISYM_J1, 509 GFC_ISYM_JN, 510 GFC_ISYM_JN2, 511 GFC_ISYM_KILL, 512 GFC_ISYM_KIND, 513 GFC_ISYM_LBOUND, 514 GFC_ISYM_LCOBOUND, 515 GFC_ISYM_LEADZ, 516 GFC_ISYM_LEN, 517 GFC_ISYM_LEN_TRIM, 518 GFC_ISYM_LGAMMA, 519 GFC_ISYM_LGE, 520 GFC_ISYM_LGT, 521 GFC_ISYM_LINK, 522 GFC_ISYM_LLE, 523 GFC_ISYM_LLT, 524 GFC_ISYM_LOC, 525 GFC_ISYM_LOG, 526 GFC_ISYM_LOG10, 527 GFC_ISYM_LOGICAL, 528 GFC_ISYM_LONG, 529 GFC_ISYM_LSHIFT, 530 GFC_ISYM_LSTAT, 531 GFC_ISYM_LTIME, 532 GFC_ISYM_MALLOC, 533 GFC_ISYM_MASKL, 534 GFC_ISYM_MASKR, 535 GFC_ISYM_MATMUL, 536 GFC_ISYM_MAX, 537 GFC_ISYM_MAXEXPONENT, 538 GFC_ISYM_MAXLOC, 539 GFC_ISYM_MAXVAL, 540 GFC_ISYM_MCLOCK, 541 GFC_ISYM_MCLOCK8, 542 GFC_ISYM_MERGE, 543 GFC_ISYM_MERGE_BITS, 544 GFC_ISYM_MIN, 545 GFC_ISYM_MINEXPONENT, 546 GFC_ISYM_MINLOC, 547 GFC_ISYM_MINVAL, 548 GFC_ISYM_MOD, 549 GFC_ISYM_MODULO, 550 GFC_ISYM_MOVE_ALLOC, 551 GFC_ISYM_MVBITS, 552 GFC_ISYM_NEAREST, 553 GFC_ISYM_NEW_LINE, 554 GFC_ISYM_NINT, 555 GFC_ISYM_NORM2, 556 GFC_ISYM_NOT, 557 GFC_ISYM_NULL, 558 GFC_ISYM_NUM_IMAGES, 559 GFC_ISYM_OR, 560 GFC_ISYM_PACK, 561 GFC_ISYM_PARITY, 562 GFC_ISYM_PERROR, 563 GFC_ISYM_POPCNT, 564 GFC_ISYM_POPPAR, 565 GFC_ISYM_PRECISION, 566 GFC_ISYM_PRESENT, 567 GFC_ISYM_PRODUCT, 568 GFC_ISYM_RADIX, 569 GFC_ISYM_RAND, 570 GFC_ISYM_RANDOM_INIT, 571 GFC_ISYM_RANDOM_NUMBER, 572 GFC_ISYM_RANDOM_SEED, 573 GFC_ISYM_RANGE, 574 GFC_ISYM_RANK, 575 GFC_ISYM_REAL, 576 GFC_ISYM_RENAME, 577 GFC_ISYM_REPEAT, 578 GFC_ISYM_RESHAPE, 579 GFC_ISYM_RRSPACING, 580 GFC_ISYM_RSHIFT, 581 GFC_ISYM_SAME_TYPE_AS, 582 GFC_ISYM_SC_KIND, 583 GFC_ISYM_SCALE, 584 GFC_ISYM_SCAN, 585 GFC_ISYM_SECNDS, 586 GFC_ISYM_SECOND, 587 GFC_ISYM_SET_EXPONENT, 588 GFC_ISYM_SHAPE, 589 GFC_ISYM_SHIFTA, 590 GFC_ISYM_SHIFTL, 591 GFC_ISYM_SHIFTR, 592 GFC_ISYM_BACKTRACE, 593 GFC_ISYM_SIGN, 594 GFC_ISYM_SIGNAL, 595 GFC_ISYM_SI_KIND, 596 GFC_ISYM_SIN, 597 GFC_ISYM_SINH, 598 GFC_ISYM_SIZE, 599 GFC_ISYM_SLEEP, 600 GFC_ISYM_SIZEOF, 601 GFC_ISYM_SPACING, 602 GFC_ISYM_SPREAD, 603 GFC_ISYM_SQRT, 604 GFC_ISYM_SRAND, 605 GFC_ISYM_SR_KIND, 606 GFC_ISYM_STAT, 607 GFC_ISYM_STOPPED_IMAGES, 608 GFC_ISYM_STORAGE_SIZE, 609 GFC_ISYM_STRIDE, 610 GFC_ISYM_SUM, 611 GFC_ISYM_SYMLINK, 612 GFC_ISYM_SYMLNK, 613 GFC_ISYM_SYSTEM, 614 GFC_ISYM_SYSTEM_CLOCK, 615 GFC_ISYM_TAN, 616 GFC_ISYM_TANH, 617 GFC_ISYM_TEAM_NUMBER, 618 GFC_ISYM_THIS_IMAGE, 619 GFC_ISYM_TIME, 620 GFC_ISYM_TIME8, 621 GFC_ISYM_TINY, 622 GFC_ISYM_TRAILZ, 623 GFC_ISYM_TRANSFER, 624 GFC_ISYM_TRANSPOSE, 625 GFC_ISYM_TRIM, 626 GFC_ISYM_TTYNAM, 627 GFC_ISYM_UBOUND, 628 GFC_ISYM_UCOBOUND, 629 GFC_ISYM_UMASK, 630 GFC_ISYM_UNLINK, 631 GFC_ISYM_UNPACK, 632 GFC_ISYM_VERIFY, 633 GFC_ISYM_XOR, 634 GFC_ISYM_Y0, 635 GFC_ISYM_Y1, 636 GFC_ISYM_YN, 637 GFC_ISYM_YN2 638 }; 639 640 enum init_local_logical 641 { 642 GFC_INIT_LOGICAL_OFF = 0, 643 GFC_INIT_LOGICAL_FALSE, 644 GFC_INIT_LOGICAL_TRUE 645 }; 646 647 enum init_local_character 648 { 649 GFC_INIT_CHARACTER_OFF = 0, 650 GFC_INIT_CHARACTER_ON 651 }; 652 653 enum init_local_integer 654 { 655 GFC_INIT_INTEGER_OFF = 0, 656 GFC_INIT_INTEGER_ON 657 }; 658 659 enum gfc_reverse 660 { 661 GFC_ENABLE_REVERSE, 662 GFC_FORWARD_SET, 663 GFC_REVERSE_SET, 664 GFC_INHIBIT_REVERSE 665 }; 666 667 enum gfc_param_spec_type 668 { 669 SPEC_EXPLICIT, 670 SPEC_ASSUMED, 671 SPEC_DEFERRED 672 }; 673 674 /************************* Structures *****************************/ 675 676 /* Used for keeping things in balanced binary trees. */ 677 #define BBT_HEADER(self) int priority; struct self *left, *right 678 679 #define NAMED_INTCST(a,b,c,d) a, 680 #define NAMED_KINDARRAY(a,b,c,d) a, 681 #define NAMED_FUNCTION(a,b,c,d) a, 682 #define NAMED_SUBROUTINE(a,b,c,d) a, 683 #define NAMED_DERIVED_TYPE(a,b,c,d) a, 684 enum iso_fortran_env_symbol 685 { 686 ISOFORTRANENV_INVALID = -1, 687 #include "iso-fortran-env.def" 688 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST 689 }; 690 #undef NAMED_INTCST 691 #undef NAMED_KINDARRAY 692 #undef NAMED_FUNCTION 693 #undef NAMED_SUBROUTINE 694 #undef NAMED_DERIVED_TYPE 695 696 #define NAMED_INTCST(a,b,c,d) a, 697 #define NAMED_REALCST(a,b,c,d) a, 698 #define NAMED_CMPXCST(a,b,c,d) a, 699 #define NAMED_LOGCST(a,b,c) a, 700 #define NAMED_CHARKNDCST(a,b,c) a, 701 #define NAMED_CHARCST(a,b,c) a, 702 #define DERIVED_TYPE(a,b,c) a, 703 #define NAMED_FUNCTION(a,b,c,d) a, 704 #define NAMED_SUBROUTINE(a,b,c,d) a, 705 enum iso_c_binding_symbol 706 { 707 ISOCBINDING_INVALID = -1, 708 #include "iso-c-binding.def" 709 ISOCBINDING_LAST, 710 ISOCBINDING_NUMBER = ISOCBINDING_LAST 711 }; 712 #undef NAMED_INTCST 713 #undef NAMED_REALCST 714 #undef NAMED_CMPXCST 715 #undef NAMED_LOGCST 716 #undef NAMED_CHARKNDCST 717 #undef NAMED_CHARCST 718 #undef DERIVED_TYPE 719 #undef NAMED_FUNCTION 720 #undef NAMED_SUBROUTINE 721 722 enum intmod_id 723 { 724 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING, 725 INTMOD_IEEE_FEATURES, INTMOD_IEEE_EXCEPTIONS, INTMOD_IEEE_ARITHMETIC 726 }; 727 728 typedef struct 729 { 730 char name[GFC_MAX_SYMBOL_LEN + 1]; 731 int value; /* Used for both integer and character values. */ 732 bt f90_type; 733 } 734 CInteropKind_t; 735 736 /* Array of structs, where the structs represent the C interop kinds. 737 The list will be implemented based on a hash of the kind name since 738 these could be accessed multiple times. 739 Declared in trans-types.c as a global, since it's in that file 740 that the list is initialized. */ 741 extern CInteropKind_t c_interop_kinds_table[]; 742 743 744 /* Structure and list of supported extension attributes. */ 745 typedef enum 746 { 747 EXT_ATTR_DLLIMPORT = 0, 748 EXT_ATTR_DLLEXPORT, 749 EXT_ATTR_STDCALL, 750 EXT_ATTR_CDECL, 751 EXT_ATTR_FASTCALL, 752 EXT_ATTR_NO_ARG_CHECK, 753 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST 754 } 755 ext_attr_id_t; 756 757 typedef struct 758 { 759 const char *name; 760 unsigned id; 761 const char *middle_end_name; 762 } 763 ext_attr_t; 764 765 extern const ext_attr_t ext_attr_list[]; 766 767 /* Symbol attribute structure. */ 768 typedef struct 769 { 770 /* Variable attributes. */ 771 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1, 772 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1, 773 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1, 774 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1, 775 contiguous:1, fe_temp: 1, automatic: 1; 776 777 /* For CLASS containers, the pointer attribute is sometimes set internally 778 even though it was not directly specified. In this case, keep the 779 "real" (original) value here. */ 780 unsigned class_pointer:1; 781 782 ENUM_BITFIELD (save_state) save:2; 783 784 unsigned data:1, /* Symbol is named in a DATA statement. */ 785 is_protected:1, /* Symbol has been marked as protected. */ 786 use_assoc:1, /* Symbol has been use-associated. */ 787 used_in_submodule:1, /* Symbol has been use-associated in a 788 submodule. Needed since these entities must 789 be set host associated to be compliant. */ 790 use_only:1, /* Symbol has been use-associated, with ONLY. */ 791 use_rename:1, /* Symbol has been use-associated and renamed. */ 792 imported:1, /* Symbol has been associated by IMPORT. */ 793 host_assoc:1; /* Symbol has been host associated. */ 794 795 unsigned in_namelist:1, in_common:1, in_equivalence:1; 796 unsigned function:1, subroutine:1, procedure:1; 797 unsigned generic:1, generic_copy:1; 798 unsigned implicit_type:1; /* Type defined via implicit rules. */ 799 unsigned untyped:1; /* No implicit type could be found. */ 800 801 unsigned is_bind_c:1; /* say if is bound to C. */ 802 unsigned extension:8; /* extension level of a derived type. */ 803 unsigned is_class:1; /* is a CLASS container. */ 804 unsigned class_ok:1; /* is a CLASS object with correct attributes. */ 805 unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */ 806 unsigned vtype:1; /* is a derived type of a vtab. */ 807 808 /* These flags are both in the typespec and attribute. The attribute 809 list is what gets read from/written to a module file. The typespec 810 is created from a decl being processed. */ 811 unsigned is_c_interop:1; /* It's c interoperable. */ 812 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */ 813 814 /* Function/subroutine attributes */ 815 unsigned sequence:1, elemental:1, pure:1, recursive:1; 816 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1; 817 818 /* Set if this is a module function or subroutine. Note that it is an 819 attribute because it appears as a prefix in the declaration like 820 PURE, etc.. */ 821 unsigned module_procedure:1; 822 823 /* Set if a (public) symbol [e.g. generic name] exposes this symbol, 824 which is relevant for private module procedures. */ 825 unsigned public_used:1; 826 827 /* This is set if a contained procedure could be declared pure. This is 828 used for certain optimizations that require the result or arguments 829 cannot alias. Note that this is zero for PURE procedures. */ 830 unsigned implicit_pure:1; 831 832 /* This is set for a procedure that contains expressions referencing 833 arrays coming from outside its namespace. 834 This is used to force the creation of a temporary when the LHS of 835 an array assignment may be used by an elemental procedure appearing 836 on the RHS. */ 837 unsigned array_outer_dependency:1; 838 839 /* This is set if the subroutine doesn't return. Currently, this 840 is only possible for intrinsic subroutines. */ 841 unsigned noreturn:1; 842 843 /* Set if this procedure is an alternate entry point. These procedures 844 don't have any code associated, and the backend will turn them into 845 thunks to the master function. */ 846 unsigned entry:1; 847 848 /* Set if this is the master function for a procedure with multiple 849 entry points. */ 850 unsigned entry_master:1; 851 852 /* Set if this is the master function for a function with multiple 853 entry points where characteristics of the entry points differ. */ 854 unsigned mixed_entry_master:1; 855 856 /* Set if a function must always be referenced by an explicit interface. */ 857 unsigned always_explicit:1; 858 859 /* Set if the symbol is generated and, hence, standard violations 860 shouldn't be flaged. */ 861 unsigned artificial:1; 862 863 /* Set if the symbol has been referenced in an expression. No further 864 modification of type or type parameters is permitted. */ 865 unsigned referenced:1; 866 867 /* Set if this is the symbol for the main program. */ 868 unsigned is_main_program:1; 869 870 /* Mutually exclusive multibit attributes. */ 871 ENUM_BITFIELD (gfc_access) access:2; 872 ENUM_BITFIELD (sym_intent) intent:2; 873 ENUM_BITFIELD (sym_flavor) flavor:4; 874 ENUM_BITFIELD (ifsrc) if_source:2; 875 876 ENUM_BITFIELD (procedure_type) proc:3; 877 878 /* Special attributes for Cray pointers, pointees. */ 879 unsigned cray_pointer:1, cray_pointee:1; 880 881 /* The symbol is a derived type with allocatable components, pointer 882 components or private components, procedure pointer components, 883 possibly nested. zero_comp is true if the derived type has no 884 component at all. defined_assign_comp is true if the derived 885 type or a (sub-)component has a typebound defined assignment. 886 unlimited_polymorphic flags the type of the container for these 887 entities. */ 888 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1, 889 private_comp:1, zero_comp:1, coarray_comp:1, lock_comp:1, 890 event_comp:1, defined_assign_comp:1, unlimited_polymorphic:1, 891 has_dtio_procs:1, caf_token:1; 892 893 /* This is a temporary selector for SELECT TYPE or an associate 894 variable for SELECT_TYPE or ASSOCIATE. */ 895 unsigned select_type_temporary:1, associate_var:1; 896 897 /* These are the attributes required for parameterized derived 898 types. */ 899 unsigned pdt_kind:1, pdt_len:1, pdt_type:1, pdt_template:1, 900 pdt_array:1, pdt_string:1; 901 902 /* This is omp_{out,in,priv,orig} artificial variable in 903 !$OMP DECLARE REDUCTION. */ 904 unsigned omp_udr_artificial_var:1; 905 906 /* Mentioned in OMP DECLARE TARGET. */ 907 unsigned omp_declare_target:1; 908 unsigned omp_declare_target_link:1; 909 910 /* Mentioned in OACC DECLARE. */ 911 unsigned oacc_declare_create:1; 912 unsigned oacc_declare_copyin:1; 913 unsigned oacc_declare_deviceptr:1; 914 unsigned oacc_declare_device_resident:1; 915 unsigned oacc_declare_link:1; 916 917 /* OpenACC 'routine' directive's level of parallelism. */ 918 ENUM_BITFIELD (oacc_routine_lop) oacc_routine_lop:3; 919 920 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */ 921 unsigned ext_attr:EXT_ATTR_NUM; 922 923 /* The namespace where the attribute has been set. */ 924 struct gfc_namespace *volatile_ns, *asynchronous_ns; 925 } 926 symbol_attribute; 927 928 929 /* We need to store source lines as sequences of multibyte source 930 characters. We define here a type wide enough to hold any multibyte 931 source character, just like libcpp does. A 32-bit type is enough. */ 932 933 #if HOST_BITS_PER_INT >= 32 934 typedef unsigned int gfc_char_t; 935 #elif HOST_BITS_PER_LONG >= 32 936 typedef unsigned long gfc_char_t; 937 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32) 938 typedef unsigned long long gfc_char_t; 939 #else 940 # error "Cannot find an integer type with at least 32 bits" 941 #endif 942 943 944 /* The following three structures are used to identify a location in 945 the sources. 946 947 gfc_file is used to maintain a tree of the source files and how 948 they include each other 949 950 gfc_linebuf holds a single line of source code and information 951 which file it resides in 952 953 locus point to the sourceline and the character in the source 954 line. 955 */ 956 957 typedef struct gfc_file 958 { 959 struct gfc_file *next, *up; 960 int inclusion_line, line; 961 char *filename; 962 } gfc_file; 963 964 typedef struct gfc_linebuf 965 { 966 location_t location; 967 struct gfc_file *file; 968 struct gfc_linebuf *next; 969 970 int truncated; 971 bool dbg_emitted; 972 973 gfc_char_t line[1]; 974 } gfc_linebuf; 975 976 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line)) 977 978 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location)) 979 980 typedef struct 981 { 982 gfc_char_t *nextc; 983 gfc_linebuf *lb; 984 } locus; 985 986 /* In order for the "gfc" format checking to work correctly, you must 987 have declared a typedef locus first. */ 988 #if GCC_VERSION >= 4001 989 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m) 990 #else 991 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m) 992 #endif 993 994 995 /* Suppress error messages or re-enable them. */ 996 997 void gfc_push_suppress_errors (void); 998 void gfc_pop_suppress_errors (void); 999 1000 1001 /* Character length structures hold the expression that gives the 1002 length of a character variable. We avoid putting these into 1003 gfc_typespec because doing so prevents us from doing structure 1004 copies and forces us to deallocate any typespecs we create, as well 1005 as structures that contain typespecs. They also can have multiple 1006 character typespecs pointing to them. 1007 1008 These structures form a singly linked list within the current 1009 namespace and are deallocated with the namespace. It is possible to 1010 end up with gfc_charlen structures that have nothing pointing to them. */ 1011 1012 typedef struct gfc_charlen 1013 { 1014 struct gfc_expr *length; 1015 struct gfc_charlen *next; 1016 bool length_from_typespec; /* Length from explicit array ctor typespec? */ 1017 tree backend_decl; 1018 tree passed_length; /* Length argument explicitly passed. */ 1019 1020 int resolved; 1021 } 1022 gfc_charlen; 1023 1024 #define gfc_get_charlen() XCNEW (gfc_charlen) 1025 1026 /* Type specification structure. */ 1027 typedef struct 1028 { 1029 bt type; 1030 int kind; 1031 1032 union 1033 { 1034 struct gfc_symbol *derived; /* For derived types only. */ 1035 gfc_charlen *cl; /* For character types only. */ 1036 int pad; /* For hollerith types only. */ 1037 } 1038 u; 1039 1040 struct gfc_symbol *interface; /* For PROCEDURE declarations. */ 1041 int is_c_interop; 1042 int is_iso_c; 1043 bt f90_type; 1044 bool deferred; 1045 gfc_symbol *interop_kind; 1046 } 1047 gfc_typespec; 1048 1049 /* Array specification. */ 1050 typedef struct 1051 { 1052 int rank; /* A scalar has a rank of 0, an assumed-rank array has -1. */ 1053 int corank; 1054 array_type type, cotype; 1055 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS]; 1056 1057 /* These two fields are used with the Cray Pointer extension. */ 1058 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */ 1059 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to 1060 AS_EXPLICIT, but we want to remember that we 1061 did this. */ 1062 1063 bool resolved; 1064 } 1065 gfc_array_spec; 1066 1067 #define gfc_get_array_spec() XCNEW (gfc_array_spec) 1068 1069 1070 /* Components of derived types. */ 1071 typedef struct gfc_component 1072 { 1073 const char *name; 1074 gfc_typespec ts; 1075 1076 symbol_attribute attr; 1077 gfc_array_spec *as; 1078 1079 tree backend_decl; 1080 /* Used to cache a FIELD_DECL matching this same component 1081 but applied to a different backend containing type that was 1082 generated by gfc_nonrestricted_type. */ 1083 tree norestrict_decl; 1084 locus loc; 1085 struct gfc_expr *initializer; 1086 /* Used in parameterized derived type declarations to store parameterized 1087 kind expressions. */ 1088 struct gfc_expr *kind_expr; 1089 struct gfc_actual_arglist *param_list; 1090 1091 struct gfc_component *next; 1092 1093 /* Needed for procedure pointer components. */ 1094 struct gfc_typebound_proc *tb; 1095 /* When allocatable/pointer and in a coarray the associated token. */ 1096 tree caf_token; 1097 bool finalized; 1098 } 1099 gfc_component; 1100 1101 #define gfc_get_component() XCNEW (gfc_component) 1102 1103 /* Formal argument lists are lists of symbols. */ 1104 typedef struct gfc_formal_arglist 1105 { 1106 /* Symbol representing the argument at this position in the arglist. */ 1107 struct gfc_symbol *sym; 1108 /* Points to the next formal argument. */ 1109 struct gfc_formal_arglist *next; 1110 } 1111 gfc_formal_arglist; 1112 1113 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist) 1114 1115 1116 /* The gfc_actual_arglist structure is for actual arguments and 1117 for type parameter specification lists. */ 1118 typedef struct gfc_actual_arglist 1119 { 1120 const char *name; 1121 /* Alternate return label when the expr member is null. */ 1122 struct gfc_st_label *label; 1123 1124 /* This is set to the type of an eventual omitted optional 1125 argument. This is used to determine if a hidden string length 1126 argument has to be added to a function call. */ 1127 bt missing_arg_type; 1128 1129 gfc_param_spec_type spec_type; 1130 1131 struct gfc_expr *expr; 1132 struct gfc_actual_arglist *next; 1133 } 1134 gfc_actual_arglist; 1135 1136 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist) 1137 1138 1139 /* Because a symbol can belong to multiple namelists, they must be 1140 linked externally to the symbol itself. */ 1141 typedef struct gfc_namelist 1142 { 1143 struct gfc_symbol *sym; 1144 struct gfc_namelist *next; 1145 } 1146 gfc_namelist; 1147 1148 #define gfc_get_namelist() XCNEW (gfc_namelist) 1149 1150 /* Likewise to gfc_namelist, but contains expressions. */ 1151 typedef struct gfc_expr_list 1152 { 1153 struct gfc_expr *expr; 1154 struct gfc_expr_list *next; 1155 } 1156 gfc_expr_list; 1157 1158 #define gfc_get_expr_list() XCNEW (gfc_expr_list) 1159 1160 enum gfc_omp_reduction_op 1161 { 1162 OMP_REDUCTION_NONE = -1, 1163 OMP_REDUCTION_PLUS = INTRINSIC_PLUS, 1164 OMP_REDUCTION_MINUS = INTRINSIC_MINUS, 1165 OMP_REDUCTION_TIMES = INTRINSIC_TIMES, 1166 OMP_REDUCTION_AND = INTRINSIC_AND, 1167 OMP_REDUCTION_OR = INTRINSIC_OR, 1168 OMP_REDUCTION_EQV = INTRINSIC_EQV, 1169 OMP_REDUCTION_NEQV = INTRINSIC_NEQV, 1170 OMP_REDUCTION_MAX = GFC_INTRINSIC_END, 1171 OMP_REDUCTION_MIN, 1172 OMP_REDUCTION_IAND, 1173 OMP_REDUCTION_IOR, 1174 OMP_REDUCTION_IEOR, 1175 OMP_REDUCTION_USER 1176 }; 1177 1178 enum gfc_omp_depend_op 1179 { 1180 OMP_DEPEND_IN, 1181 OMP_DEPEND_OUT, 1182 OMP_DEPEND_INOUT, 1183 OMP_DEPEND_SINK_FIRST, 1184 OMP_DEPEND_SINK 1185 }; 1186 1187 enum gfc_omp_map_op 1188 { 1189 OMP_MAP_ALLOC, 1190 OMP_MAP_TO, 1191 OMP_MAP_FROM, 1192 OMP_MAP_TOFROM, 1193 OMP_MAP_DELETE, 1194 OMP_MAP_FORCE_ALLOC, 1195 OMP_MAP_FORCE_TO, 1196 OMP_MAP_FORCE_FROM, 1197 OMP_MAP_FORCE_TOFROM, 1198 OMP_MAP_FORCE_PRESENT, 1199 OMP_MAP_FORCE_DEVICEPTR, 1200 OMP_MAP_DEVICE_RESIDENT, 1201 OMP_MAP_LINK, 1202 OMP_MAP_RELEASE, 1203 OMP_MAP_ALWAYS_TO, 1204 OMP_MAP_ALWAYS_FROM, 1205 OMP_MAP_ALWAYS_TOFROM 1206 }; 1207 1208 enum gfc_omp_linear_op 1209 { 1210 OMP_LINEAR_DEFAULT, 1211 OMP_LINEAR_REF, 1212 OMP_LINEAR_VAL, 1213 OMP_LINEAR_UVAL 1214 }; 1215 1216 /* For use in OpenMP clauses in case we need extra information 1217 (aligned clause alignment, linear clause step, etc.). */ 1218 1219 typedef struct gfc_omp_namelist 1220 { 1221 struct gfc_symbol *sym; 1222 struct gfc_expr *expr; 1223 union 1224 { 1225 gfc_omp_reduction_op reduction_op; 1226 gfc_omp_depend_op depend_op; 1227 gfc_omp_map_op map_op; 1228 gfc_omp_linear_op linear_op; 1229 struct gfc_common_head *common; 1230 } u; 1231 struct gfc_omp_namelist_udr *udr; 1232 struct gfc_omp_namelist *next; 1233 locus where; 1234 } 1235 gfc_omp_namelist; 1236 1237 #define gfc_get_omp_namelist() XCNEW (gfc_omp_namelist) 1238 1239 enum 1240 { 1241 OMP_LIST_FIRST, 1242 OMP_LIST_PRIVATE = OMP_LIST_FIRST, 1243 OMP_LIST_FIRSTPRIVATE, 1244 OMP_LIST_LASTPRIVATE, 1245 OMP_LIST_COPYPRIVATE, 1246 OMP_LIST_SHARED, 1247 OMP_LIST_COPYIN, 1248 OMP_LIST_UNIFORM, 1249 OMP_LIST_ALIGNED, 1250 OMP_LIST_LINEAR, 1251 OMP_LIST_DEPEND, 1252 OMP_LIST_MAP, 1253 OMP_LIST_TO, 1254 OMP_LIST_FROM, 1255 OMP_LIST_REDUCTION, 1256 OMP_LIST_DEVICE_RESIDENT, 1257 OMP_LIST_LINK, 1258 OMP_LIST_USE_DEVICE, 1259 OMP_LIST_CACHE, 1260 OMP_LIST_IS_DEVICE_PTR, 1261 OMP_LIST_USE_DEVICE_PTR, 1262 OMP_LIST_NUM 1263 }; 1264 1265 /* Because a symbol can belong to multiple namelists, they must be 1266 linked externally to the symbol itself. */ 1267 1268 enum gfc_omp_sched_kind 1269 { 1270 OMP_SCHED_NONE, 1271 OMP_SCHED_STATIC, 1272 OMP_SCHED_DYNAMIC, 1273 OMP_SCHED_GUIDED, 1274 OMP_SCHED_RUNTIME, 1275 OMP_SCHED_AUTO 1276 }; 1277 1278 enum gfc_omp_default_sharing 1279 { 1280 OMP_DEFAULT_UNKNOWN, 1281 OMP_DEFAULT_NONE, 1282 OMP_DEFAULT_PRIVATE, 1283 OMP_DEFAULT_SHARED, 1284 OMP_DEFAULT_FIRSTPRIVATE, 1285 OMP_DEFAULT_PRESENT 1286 }; 1287 1288 enum gfc_omp_proc_bind_kind 1289 { 1290 OMP_PROC_BIND_UNKNOWN, 1291 OMP_PROC_BIND_MASTER, 1292 OMP_PROC_BIND_SPREAD, 1293 OMP_PROC_BIND_CLOSE 1294 }; 1295 1296 enum gfc_omp_cancel_kind 1297 { 1298 OMP_CANCEL_UNKNOWN, 1299 OMP_CANCEL_PARALLEL, 1300 OMP_CANCEL_SECTIONS, 1301 OMP_CANCEL_DO, 1302 OMP_CANCEL_TASKGROUP 1303 }; 1304 1305 enum gfc_omp_if_kind 1306 { 1307 OMP_IF_PARALLEL, 1308 OMP_IF_TASK, 1309 OMP_IF_TASKLOOP, 1310 OMP_IF_TARGET, 1311 OMP_IF_TARGET_DATA, 1312 OMP_IF_TARGET_UPDATE, 1313 OMP_IF_TARGET_ENTER_DATA, 1314 OMP_IF_TARGET_EXIT_DATA, 1315 OMP_IF_LAST 1316 }; 1317 1318 typedef struct gfc_omp_clauses 1319 { 1320 struct gfc_expr *if_expr; 1321 struct gfc_expr *final_expr; 1322 struct gfc_expr *num_threads; 1323 gfc_omp_namelist *lists[OMP_LIST_NUM]; 1324 enum gfc_omp_sched_kind sched_kind; 1325 struct gfc_expr *chunk_size; 1326 enum gfc_omp_default_sharing default_sharing; 1327 int collapse, orderedc; 1328 bool nowait, ordered, untied, mergeable; 1329 bool inbranch, notinbranch, defaultmap, nogroup; 1330 bool sched_simd, sched_monotonic, sched_nonmonotonic; 1331 bool simd, threads, depend_source; 1332 enum gfc_omp_cancel_kind cancel; 1333 enum gfc_omp_proc_bind_kind proc_bind; 1334 struct gfc_expr *safelen_expr; 1335 struct gfc_expr *simdlen_expr; 1336 struct gfc_expr *num_teams; 1337 struct gfc_expr *device; 1338 struct gfc_expr *thread_limit; 1339 struct gfc_expr *grainsize; 1340 struct gfc_expr *hint; 1341 struct gfc_expr *num_tasks; 1342 struct gfc_expr *priority; 1343 struct gfc_expr *if_exprs[OMP_IF_LAST]; 1344 enum gfc_omp_sched_kind dist_sched_kind; 1345 struct gfc_expr *dist_chunk_size; 1346 const char *critical_name; 1347 1348 /* OpenACC. */ 1349 struct gfc_expr *async_expr; 1350 struct gfc_expr *gang_static_expr; 1351 struct gfc_expr *gang_num_expr; 1352 struct gfc_expr *worker_expr; 1353 struct gfc_expr *vector_expr; 1354 struct gfc_expr *num_gangs_expr; 1355 struct gfc_expr *num_workers_expr; 1356 struct gfc_expr *vector_length_expr; 1357 gfc_expr_list *wait_list; 1358 gfc_expr_list *tile_list; 1359 unsigned async:1, gang:1, worker:1, vector:1, seq:1, independent:1; 1360 unsigned par_auto:1, gang_static:1; 1361 unsigned if_present:1, finalize:1; 1362 locus loc; 1363 1364 } 1365 gfc_omp_clauses; 1366 1367 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses) 1368 1369 1370 /* Node in the linked list used for storing !$oacc declare constructs. */ 1371 1372 typedef struct gfc_oacc_declare 1373 { 1374 struct gfc_oacc_declare *next; 1375 bool module_var; 1376 gfc_omp_clauses *clauses; 1377 locus loc; 1378 } 1379 gfc_oacc_declare; 1380 1381 #define gfc_get_oacc_declare() XCNEW (gfc_oacc_declare) 1382 1383 1384 /* Node in the linked list used for storing !$omp declare simd constructs. */ 1385 1386 typedef struct gfc_omp_declare_simd 1387 { 1388 struct gfc_omp_declare_simd *next; 1389 locus where; /* Where the !$omp declare simd construct occurred. */ 1390 1391 gfc_symbol *proc_name; 1392 1393 gfc_omp_clauses *clauses; 1394 } 1395 gfc_omp_declare_simd; 1396 #define gfc_get_omp_declare_simd() XCNEW (gfc_omp_declare_simd) 1397 1398 typedef struct gfc_omp_udr 1399 { 1400 struct gfc_omp_udr *next; 1401 locus where; /* Where the !$omp declare reduction construct occurred. */ 1402 1403 const char *name; 1404 gfc_typespec ts; 1405 gfc_omp_reduction_op rop; 1406 1407 struct gfc_symbol *omp_out; 1408 struct gfc_symbol *omp_in; 1409 struct gfc_namespace *combiner_ns; 1410 1411 struct gfc_symbol *omp_priv; 1412 struct gfc_symbol *omp_orig; 1413 struct gfc_namespace *initializer_ns; 1414 } 1415 gfc_omp_udr; 1416 #define gfc_get_omp_udr() XCNEW (gfc_omp_udr) 1417 1418 typedef struct gfc_omp_namelist_udr 1419 { 1420 struct gfc_omp_udr *udr; 1421 struct gfc_code *combiner; 1422 struct gfc_code *initializer; 1423 } 1424 gfc_omp_namelist_udr; 1425 #define gfc_get_omp_namelist_udr() XCNEW (gfc_omp_namelist_udr) 1426 1427 /* The gfc_st_label structure is a BBT attached to a namespace that 1428 records the usage of statement labels within that space. */ 1429 1430 typedef struct gfc_st_label 1431 { 1432 BBT_HEADER(gfc_st_label); 1433 1434 int value; 1435 1436 gfc_sl_type defined, referenced; 1437 1438 struct gfc_expr *format; 1439 1440 tree backend_decl; 1441 1442 locus where; 1443 1444 gfc_namespace *ns; 1445 } 1446 gfc_st_label; 1447 1448 1449 /* gfc_interface()-- Interfaces are lists of symbols strung together. */ 1450 typedef struct gfc_interface 1451 { 1452 struct gfc_symbol *sym; 1453 locus where; 1454 struct gfc_interface *next; 1455 } 1456 gfc_interface; 1457 1458 #define gfc_get_interface() XCNEW (gfc_interface) 1459 1460 /* User operator nodes. These are like stripped down symbols. */ 1461 typedef struct 1462 { 1463 const char *name; 1464 1465 gfc_interface *op; 1466 struct gfc_namespace *ns; 1467 gfc_access access; 1468 } 1469 gfc_user_op; 1470 1471 1472 /* A list of specific bindings that are associated with a generic spec. */ 1473 typedef struct gfc_tbp_generic 1474 { 1475 /* The parser sets specific_st, upon resolution we look for the corresponding 1476 gfc_typebound_proc and set specific for further use. */ 1477 struct gfc_symtree* specific_st; 1478 struct gfc_typebound_proc* specific; 1479 1480 struct gfc_tbp_generic* next; 1481 bool is_operator; 1482 } 1483 gfc_tbp_generic; 1484 1485 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic) 1486 1487 1488 /* Data needed for type-bound procedures. */ 1489 typedef struct gfc_typebound_proc 1490 { 1491 locus where; /* Where the PROCEDURE/GENERIC definition was. */ 1492 1493 union 1494 { 1495 struct gfc_symtree* specific; /* The interface if DEFERRED. */ 1496 gfc_tbp_generic* generic; 1497 } 1498 u; 1499 1500 gfc_access access; 1501 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */ 1502 1503 /* The overridden type-bound proc (or GENERIC with this name in the 1504 parent-type) or NULL if non. */ 1505 struct gfc_typebound_proc* overridden; 1506 1507 /* Once resolved, we use the position of pass_arg in the formal arglist of 1508 the binding-target procedure to identify it. The first argument has 1509 number 1 here, the second 2, and so on. */ 1510 unsigned pass_arg_num; 1511 1512 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */ 1513 unsigned non_overridable:1; 1514 unsigned deferred:1; 1515 unsigned is_generic:1; 1516 unsigned function:1, subroutine:1; 1517 unsigned error:1; /* Ignore it, when an error occurred during resolution. */ 1518 unsigned ppc:1; 1519 } 1520 gfc_typebound_proc; 1521 1522 1523 /* Symbol nodes. These are important things. They are what the 1524 standard refers to as "entities". The possibly multiple names that 1525 refer to the same entity are accomplished by a binary tree of 1526 symtree structures that is balanced by the red-black method-- more 1527 than one symtree node can point to any given symbol. */ 1528 1529 typedef struct gfc_symbol 1530 { 1531 const char *name; /* Primary name, before renaming */ 1532 const char *module; /* Module this symbol came from */ 1533 locus declared_at; 1534 1535 gfc_typespec ts; 1536 symbol_attribute attr; 1537 1538 /* The formal member points to the formal argument list if the 1539 symbol is a function or subroutine name. If the symbol is a 1540 generic name, the generic member points to the list of 1541 interfaces. */ 1542 1543 gfc_interface *generic; 1544 gfc_access component_access; 1545 1546 gfc_formal_arglist *formal; 1547 struct gfc_namespace *formal_ns; 1548 struct gfc_namespace *f2k_derived; 1549 1550 /* List of PDT parameter expressions */ 1551 struct gfc_actual_arglist *param_list; 1552 1553 struct gfc_expr *value; /* Parameter/Initializer value */ 1554 gfc_array_spec *as; 1555 struct gfc_symbol *result; /* function result symbol */ 1556 gfc_component *components; /* Derived type components */ 1557 1558 /* Defined only for Cray pointees; points to their pointer. */ 1559 struct gfc_symbol *cp_pointer; 1560 1561 int entry_id; /* Used in resolve.c for entries. */ 1562 1563 /* CLASS hashed name for declared and dynamic types in the class. */ 1564 int hash_value; 1565 1566 struct gfc_symbol *common_next; /* Links for COMMON syms */ 1567 1568 /* This is only used for pointer comparisons to check if symbols 1569 are in the same common block. 1570 In opposition to common_block, the common_head pointer takes into account 1571 equivalences: if A is in a common block C and A and B are in equivalence, 1572 then both A and B have common_head pointing to C, while A's common_block 1573 points to C and B's is NULL. */ 1574 struct gfc_common_head* common_head; 1575 1576 /* Make sure setup code for dummy arguments is generated in the correct 1577 order. */ 1578 int dummy_order; 1579 1580 gfc_namelist *namelist, *namelist_tail; 1581 1582 /* Change management fields. Symbols that might be modified by the 1583 current statement have the mark member nonzero. Of these symbols, 1584 symbols with old_symbol equal to NULL are symbols created within 1585 the current statement. Otherwise, old_symbol points to a copy of 1586 the old symbol. gfc_new is used in symbol.c to flag new symbols. */ 1587 struct gfc_symbol *old_symbol; 1588 unsigned mark:1, gfc_new:1; 1589 1590 /* The tlink field is used in the front end to carry the module 1591 declaration of separate module procedures so that the characteristics 1592 can be compared with the corresponding declaration in a submodule. In 1593 translation this field carries a linked list of symbols that require 1594 deferred initialization. */ 1595 struct gfc_symbol *tlink; 1596 1597 /* Nonzero if all equivalences associated with this symbol have been 1598 processed. */ 1599 unsigned equiv_built:1; 1600 /* Set if this variable is used as an index name in a FORALL. */ 1601 unsigned forall_index:1; 1602 /* Set if the symbol is used in a function result specification . */ 1603 unsigned fn_result_spec:1; 1604 /* Used to avoid multiple resolutions of a single symbol. */ 1605 unsigned resolved:1; 1606 /* Set if this is a module function or subroutine with the 1607 abreviated declaration in a submodule. */ 1608 unsigned abr_modproc_decl:1; 1609 1610 int refs; 1611 struct gfc_namespace *ns; /* namespace containing this symbol */ 1612 1613 tree backend_decl; 1614 1615 /* Identity of the intrinsic module the symbol comes from, or 1616 INTMOD_NONE if it's not imported from a intrinsic module. */ 1617 intmod_id from_intmod; 1618 /* Identity of the symbol from intrinsic modules, from enums maintained 1619 separately by each intrinsic module. Used together with from_intmod, 1620 it uniquely identifies a symbol from an intrinsic module. */ 1621 int intmod_sym_id; 1622 1623 /* This may be repetitive, since the typespec now has a binding 1624 label field. */ 1625 const char* binding_label; 1626 /* Store a reference to the common_block, if this symbol is in one. */ 1627 struct gfc_common_head *common_block; 1628 1629 /* Link to corresponding association-list if this is an associate name. */ 1630 struct gfc_association_list *assoc; 1631 1632 /* Link to next entry in derived type list */ 1633 struct gfc_symbol *dt_next; 1634 } 1635 gfc_symbol; 1636 1637 1638 struct gfc_undo_change_set 1639 { 1640 vec<gfc_symbol *> syms; 1641 vec<gfc_typebound_proc *> tbps; 1642 gfc_undo_change_set *previous; 1643 }; 1644 1645 1646 /* This structure is used to keep track of symbols in common blocks. */ 1647 typedef struct gfc_common_head 1648 { 1649 locus where; 1650 char use_assoc, saved, threadprivate; 1651 unsigned char omp_declare_target : 1; 1652 unsigned char omp_declare_target_link : 1; 1653 char name[GFC_MAX_SYMBOL_LEN + 1]; 1654 struct gfc_symbol *head; 1655 const char* binding_label; 1656 int is_bind_c; 1657 int refs; 1658 } 1659 gfc_common_head; 1660 1661 #define gfc_get_common_head() XCNEW (gfc_common_head) 1662 1663 1664 /* A list of all the alternate entry points for a procedure. */ 1665 1666 typedef struct gfc_entry_list 1667 { 1668 /* The symbol for this entry point. */ 1669 gfc_symbol *sym; 1670 /* The zero-based id of this entry point. */ 1671 int id; 1672 /* The LABEL_EXPR marking this entry point. */ 1673 tree label; 1674 /* The next item in the list. */ 1675 struct gfc_entry_list *next; 1676 } 1677 gfc_entry_list; 1678 1679 #define gfc_get_entry_list() XCNEW (gfc_entry_list) 1680 1681 /* Lists of rename info for the USE statement. */ 1682 1683 typedef struct gfc_use_rename 1684 { 1685 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1]; 1686 struct gfc_use_rename *next; 1687 int found; 1688 gfc_intrinsic_op op; 1689 locus where; 1690 } 1691 gfc_use_rename; 1692 1693 #define gfc_get_use_rename() XCNEW (gfc_use_rename); 1694 1695 /* A list of all USE statements in a namespace. */ 1696 1697 typedef struct gfc_use_list 1698 { 1699 const char *module_name; 1700 const char *submodule_name; 1701 bool intrinsic; 1702 bool non_intrinsic; 1703 bool only_flag; 1704 struct gfc_use_rename *rename; 1705 locus where; 1706 /* Next USE statement. */ 1707 struct gfc_use_list *next; 1708 } 1709 gfc_use_list; 1710 1711 #define gfc_get_use_list() XCNEW (gfc_use_list) 1712 1713 /* Within a namespace, symbols are pointed to by symtree nodes that 1714 are linked together in a balanced binary tree. There can be 1715 several symtrees pointing to the same symbol node via USE 1716 statements. */ 1717 1718 typedef struct gfc_symtree 1719 { 1720 BBT_HEADER (gfc_symtree); 1721 const char *name; 1722 int ambiguous; 1723 union 1724 { 1725 gfc_symbol *sym; /* Symbol associated with this node */ 1726 gfc_user_op *uop; 1727 gfc_common_head *common; 1728 gfc_typebound_proc *tb; 1729 gfc_omp_udr *omp_udr; 1730 } 1731 n; 1732 } 1733 gfc_symtree; 1734 1735 /* A list of all derived types. */ 1736 extern gfc_symbol *gfc_derived_types; 1737 1738 typedef struct gfc_oacc_routine_name 1739 { 1740 struct gfc_symbol *sym; 1741 struct gfc_omp_clauses *clauses; 1742 struct gfc_oacc_routine_name *next; 1743 locus loc; 1744 } 1745 gfc_oacc_routine_name; 1746 1747 #define gfc_get_oacc_routine_name() XCNEW (gfc_oacc_routine_name) 1748 1749 /* A namespace describes the contents of procedure, module, interface block 1750 or BLOCK construct. */ 1751 /* ??? Anything else use these? */ 1752 1753 typedef struct gfc_namespace 1754 { 1755 /* Tree containing all the symbols in this namespace. */ 1756 gfc_symtree *sym_root; 1757 /* Tree containing all the user-defined operators in the namespace. */ 1758 gfc_symtree *uop_root; 1759 /* Tree containing all the common blocks. */ 1760 gfc_symtree *common_root; 1761 /* Tree containing all the OpenMP user defined reductions. */ 1762 gfc_symtree *omp_udr_root; 1763 1764 /* Tree containing type-bound procedures. */ 1765 gfc_symtree *tb_sym_root; 1766 /* Type-bound user operators. */ 1767 gfc_symtree *tb_uop_root; 1768 /* For derived-types, store type-bound intrinsic operators here. */ 1769 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS]; 1770 /* Linked list of finalizer procedures. */ 1771 struct gfc_finalizer *finalizers; 1772 1773 /* If set_flag[letter] is set, an implicit type has been set for letter. */ 1774 int set_flag[GFC_LETTERS]; 1775 /* Keeps track of the implicit types associated with the letters. */ 1776 gfc_typespec default_type[GFC_LETTERS]; 1777 /* Store the positions of IMPLICIT statements. */ 1778 locus implicit_loc[GFC_LETTERS]; 1779 1780 /* If this is a namespace of a procedure, this points to the procedure. */ 1781 struct gfc_symbol *proc_name; 1782 /* If this is the namespace of a unit which contains executable 1783 code, this points to it. */ 1784 struct gfc_code *code; 1785 1786 /* Points to the equivalences set up in this namespace. */ 1787 struct gfc_equiv *equiv, *old_equiv; 1788 1789 /* Points to the equivalence groups produced by trans_common. */ 1790 struct gfc_equiv_list *equiv_lists; 1791 1792 gfc_interface *op[GFC_INTRINSIC_OPS]; 1793 1794 /* Points to the parent namespace, i.e. the namespace of a module or 1795 procedure in which the procedure belonging to this namespace is 1796 contained. The parent namespace points to this namespace either 1797 directly via CONTAINED, or indirectly via the chain built by 1798 SIBLING. */ 1799 struct gfc_namespace *parent; 1800 /* CONTAINED points to the first contained namespace. Sibling 1801 namespaces are chained via SIBLING. */ 1802 struct gfc_namespace *contained, *sibling; 1803 1804 gfc_common_head blank_common; 1805 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS]; 1806 1807 gfc_st_label *st_labels; 1808 /* This list holds information about all the data initializers in 1809 this namespace. */ 1810 struct gfc_data *data, *old_data; 1811 1812 /* !$ACC DECLARE. */ 1813 gfc_oacc_declare *oacc_declare; 1814 1815 /* !$ACC ROUTINE clauses. */ 1816 gfc_omp_clauses *oacc_routine_clauses; 1817 1818 /* !$ACC ROUTINE names. */ 1819 gfc_oacc_routine_name *oacc_routine_names; 1820 1821 gfc_charlen *cl_list; 1822 1823 gfc_symbol *derived_types; 1824 1825 int save_all, seen_save, seen_implicit_none; 1826 1827 /* Normally we don't need to refcount namespaces. However when we read 1828 a module containing a function with multiple entry points, this 1829 will appear as several functions with the same formal namespace. */ 1830 int refs; 1831 1832 /* A list of all alternate entry points to this procedure (or NULL). */ 1833 gfc_entry_list *entries; 1834 1835 /* A list of USE statements in this namespace. */ 1836 gfc_use_list *use_stmts; 1837 1838 /* Linked list of !$omp declare simd constructs. */ 1839 struct gfc_omp_declare_simd *omp_declare_simd; 1840 1841 /* Set to 1 if namespace is a BLOCK DATA program unit. */ 1842 unsigned is_block_data:1; 1843 1844 /* Set to 1 if namespace is an interface body with "IMPORT" used. */ 1845 unsigned has_import_set:1; 1846 1847 /* Set to 1 if the namespace uses "IMPLICT NONE (export)". */ 1848 unsigned has_implicit_none_export:1; 1849 1850 /* Set to 1 if resolved has been called for this namespace. 1851 Holds -1 during resolution. */ 1852 signed resolved:2; 1853 1854 /* Set when resolve_types has been called for this namespace. */ 1855 unsigned types_resolved:1; 1856 1857 /* Set to 1 if code has been generated for this namespace. */ 1858 unsigned translated:1; 1859 1860 /* Set to 1 if symbols in this namespace should be 'construct entities', 1861 i.e. for BLOCK local variables. */ 1862 unsigned construct_entities:1; 1863 1864 /* Set to 1 for !$OMP DECLARE REDUCTION namespaces. */ 1865 unsigned omp_udr_ns:1; 1866 1867 /* Set to 1 for !$ACC ROUTINE namespaces. */ 1868 unsigned oacc_routine:1; 1869 1870 /* Set to 1 if there are any calls to procedures with implicit interface. */ 1871 unsigned implicit_interface_calls:1; 1872 } 1873 gfc_namespace; 1874 1875 extern gfc_namespace *gfc_current_ns; 1876 extern gfc_namespace *gfc_global_ns_list; 1877 1878 /* Global symbols are symbols of global scope. Currently we only use 1879 this to detect collisions already when parsing. 1880 TODO: Extend to verify procedure calls. */ 1881 1882 enum gfc_symbol_type 1883 { 1884 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE, 1885 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA 1886 }; 1887 1888 typedef struct gfc_gsymbol 1889 { 1890 BBT_HEADER(gfc_gsymbol); 1891 1892 const char *name; 1893 const char *sym_name; 1894 const char *mod_name; 1895 const char *binding_label; 1896 enum gfc_symbol_type type; 1897 1898 int defined, used; 1899 bool bind_c; 1900 locus where; 1901 gfc_namespace *ns; 1902 } 1903 gfc_gsymbol; 1904 1905 extern gfc_gsymbol *gfc_gsym_root; 1906 1907 /* Information on interfaces being built. */ 1908 typedef struct 1909 { 1910 interface_type type; 1911 gfc_symbol *sym; 1912 gfc_namespace *ns; 1913 gfc_user_op *uop; 1914 gfc_intrinsic_op op; 1915 } 1916 gfc_interface_info; 1917 1918 extern gfc_interface_info current_interface; 1919 1920 1921 /* Array reference. */ 1922 1923 enum gfc_array_ref_dimen_type 1924 { 1925 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_THIS_IMAGE, DIMEN_UNKNOWN 1926 }; 1927 1928 typedef struct gfc_array_ref 1929 { 1930 ar_type type; 1931 int dimen; /* # of components in the reference */ 1932 int codimen; 1933 bool in_allocate; /* For coarray checks. */ 1934 gfc_expr *team; 1935 gfc_expr *stat; 1936 locus where; 1937 gfc_array_spec *as; 1938 1939 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */ 1940 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS], 1941 *stride[GFC_MAX_DIMENSIONS]; 1942 1943 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS]; 1944 } 1945 gfc_array_ref; 1946 1947 #define gfc_get_array_ref() XCNEW (gfc_array_ref) 1948 1949 1950 /* Component reference nodes. A variable is stored as an expression 1951 node that points to the base symbol. After that, a singly linked 1952 list of component reference nodes gives the variable's complete 1953 resolution. The array_ref component may be present and comes 1954 before the component component. */ 1955 1956 enum ref_type 1957 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING, REF_INQUIRY }; 1958 1959 enum inquiry_type 1960 { INQUIRY_RE, INQUIRY_IM, INQUIRY_KIND, INQUIRY_LEN }; 1961 1962 typedef struct gfc_ref 1963 { 1964 ref_type type; 1965 1966 union 1967 { 1968 struct gfc_array_ref ar; 1969 1970 struct 1971 { 1972 gfc_component *component; 1973 gfc_symbol *sym; 1974 } 1975 c; 1976 1977 struct 1978 { 1979 struct gfc_expr *start, *end; /* Substring */ 1980 gfc_charlen *length; 1981 } 1982 ss; 1983 1984 inquiry_type i; 1985 1986 } 1987 u; 1988 1989 struct gfc_ref *next; 1990 } 1991 gfc_ref; 1992 1993 #define gfc_get_ref() XCNEW (gfc_ref) 1994 1995 1996 /* Structures representing intrinsic symbols and their arguments lists. */ 1997 typedef struct gfc_intrinsic_arg 1998 { 1999 char name[GFC_MAX_SYMBOL_LEN + 1]; 2000 2001 gfc_typespec ts; 2002 unsigned optional:1, value:1; 2003 ENUM_BITFIELD (sym_intent) intent:2; 2004 gfc_actual_arglist *actual; 2005 2006 struct gfc_intrinsic_arg *next; 2007 2008 } 2009 gfc_intrinsic_arg; 2010 2011 2012 /* Specifies the various kinds of check functions used to verify the 2013 argument lists of intrinsic functions. fX with X an integer refer 2014 to check functions of intrinsics with X arguments. f1m is used for 2015 the MAX and MIN intrinsics which can have an arbitrary number of 2016 arguments, f4ml is used for the MINLOC and MAXLOC intrinsics as 2017 these have special semantics. */ 2018 2019 typedef union 2020 { 2021 bool (*f0)(void); 2022 bool (*f1)(struct gfc_expr *); 2023 bool (*f1m)(gfc_actual_arglist *); 2024 bool (*f2)(struct gfc_expr *, struct gfc_expr *); 2025 bool (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *); 2026 bool (*f5ml)(gfc_actual_arglist *); 2027 bool (*f6fl)(gfc_actual_arglist *); 2028 bool (*f3red)(gfc_actual_arglist *); 2029 bool (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 2030 struct gfc_expr *); 2031 bool (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 2032 struct gfc_expr *, struct gfc_expr *); 2033 } 2034 gfc_check_f; 2035 2036 /* Like gfc_check_f, these specify the type of the simplification 2037 function associated with an intrinsic. The fX are just like in 2038 gfc_check_f. cc is used for type conversion functions. */ 2039 2040 typedef union 2041 { 2042 struct gfc_expr *(*f0)(void); 2043 struct gfc_expr *(*f1)(struct gfc_expr *); 2044 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *); 2045 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *, 2046 struct gfc_expr *); 2047 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *, 2048 struct gfc_expr *, struct gfc_expr *); 2049 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *, 2050 struct gfc_expr *, struct gfc_expr *, 2051 struct gfc_expr *); 2052 struct gfc_expr *(*f6)(struct gfc_expr *, struct gfc_expr *, 2053 struct gfc_expr *, struct gfc_expr *, 2054 struct gfc_expr *, struct gfc_expr *); 2055 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int); 2056 } 2057 gfc_simplify_f; 2058 2059 /* Again like gfc_check_f, these specify the type of the resolution 2060 function associated with an intrinsic. The fX are just like in 2061 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */ 2062 2063 typedef union 2064 { 2065 void (*f0)(struct gfc_expr *); 2066 void (*f1)(struct gfc_expr *, struct gfc_expr *); 2067 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *); 2068 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *); 2069 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 2070 struct gfc_expr *); 2071 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 2072 struct gfc_expr *, struct gfc_expr *); 2073 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 2074 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *); 2075 void (*f6)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 2076 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 2077 struct gfc_expr *); 2078 void (*s1)(struct gfc_code *); 2079 } 2080 gfc_resolve_f; 2081 2082 2083 typedef struct gfc_intrinsic_sym 2084 { 2085 const char *name, *lib_name; 2086 gfc_intrinsic_arg *formal; 2087 gfc_typespec ts; 2088 unsigned elemental:1, inquiry:1, transformational:1, pure:1, 2089 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1, 2090 from_module:1, vararg:1; 2091 2092 int standard; 2093 2094 gfc_simplify_f simplify; 2095 gfc_check_f check; 2096 gfc_resolve_f resolve; 2097 struct gfc_intrinsic_sym *specific_head, *next; 2098 gfc_isym_id id; 2099 2100 } 2101 gfc_intrinsic_sym; 2102 2103 2104 /* Expression nodes. The expression node types deserve explanations, 2105 since the last couple can be easily misconstrued: 2106 2107 EXPR_OP Operator node pointing to one or two other nodes 2108 EXPR_FUNCTION Function call, symbol points to function's name 2109 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex 2110 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list 2111 which expresses structure, array and substring refs. 2112 EXPR_NULL The NULL pointer value (which also has a basic type). 2113 EXPR_SUBSTRING A substring of a constant string 2114 EXPR_STRUCTURE A structure constructor 2115 EXPR_ARRAY An array constructor. 2116 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer 2117 component or type-bound procedure. */ 2118 2119 #include <mpfr.h> 2120 #include <mpc.h> 2121 #define GFC_RND_MODE GMP_RNDN 2122 #define GFC_MPC_RND_MODE MPC_RNDNN 2123 2124 typedef splay_tree gfc_constructor_base; 2125 2126 2127 /* This should be an unsigned variable of type size_t. But to handle 2128 compiling to a 64-bit target from a 32-bit host, we need to use a 2129 HOST_WIDE_INT. Also, occasionally the string length field is used 2130 as a flag with values -1 and -2, see e.g. gfc_add_assign_aux_vars. 2131 So it needs to be signed. */ 2132 typedef HOST_WIDE_INT gfc_charlen_t; 2133 2134 typedef struct gfc_expr 2135 { 2136 expr_t expr_type; 2137 2138 gfc_typespec ts; /* These two refer to the overall expression */ 2139 2140 int rank; /* 0 indicates a scalar, -1 an assumed-rank array. */ 2141 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */ 2142 2143 /* Nonnull for functions and structure constructors, may also used to hold the 2144 base-object for component calls. */ 2145 gfc_symtree *symtree; 2146 2147 gfc_ref *ref; 2148 2149 locus where; 2150 2151 /* Used to store the base expression in component calls, when the expression 2152 is not a variable. */ 2153 struct gfc_expr *base_expr; 2154 2155 /* is_boz is true if the integer is regarded as BOZ bit pattern and is_snan 2156 denotes a signalling not-a-number. */ 2157 unsigned int is_boz : 1, is_snan : 1; 2158 2159 /* Sometimes, when an error has been emitted, it is necessary to prevent 2160 it from recurring. */ 2161 unsigned int error : 1; 2162 2163 /* Mark an expression where a user operator has been substituted by 2164 a function call in interface.c(gfc_extend_expr). */ 2165 unsigned int user_operator : 1; 2166 2167 /* Mark an expression as being a MOLD argument of ALLOCATE. */ 2168 unsigned int mold : 1; 2169 2170 /* Will require finalization after use. */ 2171 unsigned int must_finalize : 1; 2172 2173 /* Set this if no range check should be performed on this expression. */ 2174 2175 unsigned int no_bounds_check : 1; 2176 2177 /* Set this if a matmul expression has already been evaluated for conversion 2178 to a BLAS call. */ 2179 2180 unsigned int external_blas : 1; 2181 2182 /* Set this if resolution has already happened. It could be harmful 2183 if done again. */ 2184 2185 unsigned int do_not_resolve_again : 1; 2186 2187 /* Set this if no warning should be given somewhere in a lower level. */ 2188 2189 unsigned int do_not_warn : 1; 2190 /* If an expression comes from a Hollerith constant or compile-time 2191 evaluation of a transfer statement, it may have a prescribed target- 2192 memory representation, and these cannot always be backformed from 2193 the value. */ 2194 struct 2195 { 2196 gfc_charlen_t length; 2197 char *string; 2198 } 2199 representation; 2200 2201 union 2202 { 2203 int logical; 2204 2205 io_kind iokind; 2206 2207 mpz_t integer; 2208 2209 mpfr_t real; 2210 2211 mpc_t complex; 2212 2213 struct 2214 { 2215 gfc_intrinsic_op op; 2216 gfc_user_op *uop; 2217 struct gfc_expr *op1, *op2; 2218 } 2219 op; 2220 2221 struct 2222 { 2223 gfc_actual_arglist *actual; 2224 const char *name; /* Points to the ultimate name of the function */ 2225 gfc_intrinsic_sym *isym; 2226 gfc_symbol *esym; 2227 } 2228 function; 2229 2230 struct 2231 { 2232 gfc_actual_arglist* actual; 2233 const char* name; 2234 /* Base-object, whose component was called. NULL means that it should 2235 be taken from symtree/ref. */ 2236 struct gfc_expr* base_object; 2237 gfc_typebound_proc* tbp; /* Should overlap with esym. */ 2238 2239 /* For type-bound operators, we want to call PASS procedures but already 2240 have the full arglist; mark this, so that it is not extended by the 2241 PASS argument. */ 2242 unsigned ignore_pass:1; 2243 2244 /* Do assign-calls rather than calls, that is appropriate dependency 2245 checking. */ 2246 unsigned assign:1; 2247 } 2248 compcall; 2249 2250 struct 2251 { 2252 gfc_charlen_t length; 2253 gfc_char_t *string; 2254 } 2255 character; 2256 2257 gfc_constructor_base constructor; 2258 } 2259 value; 2260 2261 /* Used to store PDT expression lists associated with expressions. */ 2262 gfc_actual_arglist *param_list; 2263 2264 } 2265 gfc_expr; 2266 2267 2268 #define gfc_get_shape(rank) (XCNEWVEC (mpz_t, (rank))) 2269 2270 /* Structures for information associated with different kinds of 2271 numbers. The first set of integer parameters define all there is 2272 to know about a particular kind. The rest of the elements are 2273 computed from the first elements. */ 2274 2275 typedef struct 2276 { 2277 /* Values really representable by the target. */ 2278 mpz_t huge, pedantic_min_int, min_int; 2279 2280 int kind, radix, digits, bit_size, range; 2281 2282 /* True if the C type of the given name maps to this precision. 2283 Note that more than one bit can be set. */ 2284 unsigned int c_char : 1; 2285 unsigned int c_short : 1; 2286 unsigned int c_int : 1; 2287 unsigned int c_long : 1; 2288 unsigned int c_long_long : 1; 2289 } 2290 gfc_integer_info; 2291 2292 extern gfc_integer_info gfc_integer_kinds[]; 2293 2294 2295 typedef struct 2296 { 2297 int kind, bit_size; 2298 2299 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */ 2300 unsigned int c_bool : 1; 2301 } 2302 gfc_logical_info; 2303 2304 extern gfc_logical_info gfc_logical_kinds[]; 2305 2306 2307 typedef struct 2308 { 2309 mpfr_t epsilon, huge, tiny, subnormal; 2310 int kind, radix, digits, min_exponent, max_exponent; 2311 int range, precision; 2312 2313 /* The precision of the type as reported by GET_MODE_PRECISION. */ 2314 int mode_precision; 2315 2316 /* True if the C type of the given name maps to this precision. 2317 Note that more than one bit can be set. */ 2318 unsigned int c_float : 1; 2319 unsigned int c_double : 1; 2320 unsigned int c_long_double : 1; 2321 unsigned int c_float128 : 1; 2322 } 2323 gfc_real_info; 2324 2325 extern gfc_real_info gfc_real_kinds[]; 2326 2327 typedef struct 2328 { 2329 int kind, bit_size; 2330 const char *name; 2331 } 2332 gfc_character_info; 2333 2334 extern gfc_character_info gfc_character_kinds[]; 2335 2336 2337 /* Equivalence structures. Equivalent lvalues are linked along the 2338 *eq pointer, equivalence sets are strung along the *next node. */ 2339 typedef struct gfc_equiv 2340 { 2341 struct gfc_equiv *next, *eq; 2342 gfc_expr *expr; 2343 const char *module; 2344 int used; 2345 } 2346 gfc_equiv; 2347 2348 #define gfc_get_equiv() XCNEW (gfc_equiv) 2349 2350 /* Holds a single equivalence member after processing. */ 2351 typedef struct gfc_equiv_info 2352 { 2353 gfc_symbol *sym; 2354 HOST_WIDE_INT offset; 2355 HOST_WIDE_INT length; 2356 struct gfc_equiv_info *next; 2357 } gfc_equiv_info; 2358 2359 /* Holds equivalence groups, after they have been processed. */ 2360 typedef struct gfc_equiv_list 2361 { 2362 gfc_equiv_info *equiv; 2363 struct gfc_equiv_list *next; 2364 } gfc_equiv_list; 2365 2366 /* gfc_case stores the selector list of a case statement. The *low 2367 and *high pointers can point to the same expression in the case of 2368 a single value. If *high is NULL, the selection is from *low 2369 upwards, if *low is NULL the selection is *high downwards. 2370 2371 This structure has separate fields to allow single and double linked 2372 lists of CASEs at the same time. The singe linked list along the NEXT 2373 field is a list of cases for a single CASE label. The double linked 2374 list along the LEFT/RIGHT fields is used to detect overlap and to 2375 build a table of the cases for SELECT constructs with a CHARACTER 2376 case expression. */ 2377 2378 typedef struct gfc_case 2379 { 2380 /* Where we saw this case. */ 2381 locus where; 2382 int n; 2383 2384 /* Case range values. If (low == high), it's a single value. If one of 2385 the labels is NULL, it's an unbounded case. If both are NULL, this 2386 represents the default case. */ 2387 gfc_expr *low, *high; 2388 2389 /* Only used for SELECT TYPE. */ 2390 gfc_typespec ts; 2391 2392 /* Next case label in the list of cases for a single CASE label. */ 2393 struct gfc_case *next; 2394 2395 /* Used for detecting overlap, and for code generation. */ 2396 struct gfc_case *left, *right; 2397 2398 /* True if this case label can never be matched. */ 2399 int unreachable; 2400 } 2401 gfc_case; 2402 2403 #define gfc_get_case() XCNEW (gfc_case) 2404 2405 2406 typedef struct 2407 { 2408 gfc_expr *var, *start, *end, *step; 2409 unsigned short unroll; 2410 bool ivdep; 2411 bool vector; 2412 bool novector; 2413 } 2414 gfc_iterator; 2415 2416 #define gfc_get_iterator() XCNEW (gfc_iterator) 2417 2418 2419 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */ 2420 2421 typedef struct gfc_alloc 2422 { 2423 gfc_expr *expr; 2424 struct gfc_alloc *next; 2425 } 2426 gfc_alloc; 2427 2428 #define gfc_get_alloc() XCNEW (gfc_alloc) 2429 2430 2431 typedef struct 2432 { 2433 gfc_expr *unit, *file, *status, *access, *form, *recl, 2434 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert, 2435 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit, 2436 *share, *cc; 2437 char readonly; 2438 gfc_st_label *err; 2439 } 2440 gfc_open; 2441 2442 2443 typedef struct 2444 { 2445 gfc_expr *unit, *status, *iostat, *iomsg; 2446 gfc_st_label *err; 2447 } 2448 gfc_close; 2449 2450 2451 typedef struct 2452 { 2453 gfc_expr *unit, *iostat, *iomsg; 2454 gfc_st_label *err; 2455 } 2456 gfc_filepos; 2457 2458 2459 typedef struct 2460 { 2461 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named, 2462 *name, *access, *sequential, *direct, *form, *formatted, 2463 *unformatted, *recl, *nextrec, *blank, *position, *action, *read, 2464 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos, 2465 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id, 2466 *iqstream, *share, *cc; 2467 2468 gfc_st_label *err; 2469 2470 } 2471 gfc_inquire; 2472 2473 2474 typedef struct 2475 { 2476 gfc_expr *unit, *iostat, *iomsg, *id; 2477 gfc_st_label *err, *end, *eor; 2478 } 2479 gfc_wait; 2480 2481 2482 typedef struct 2483 { 2484 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg, 2485 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round, 2486 *sign, *extra_comma, *dt_io_kind, *udtio; 2487 char dec_ext; 2488 2489 gfc_symbol *namelist; 2490 /* A format_label of `format_asterisk' indicates the "*" format */ 2491 gfc_st_label *format_label; 2492 gfc_st_label *err, *end, *eor; 2493 2494 locus eor_where, end_where, err_where; 2495 } 2496 gfc_dt; 2497 2498 2499 typedef struct gfc_forall_iterator 2500 { 2501 gfc_expr *var, *start, *end, *stride; 2502 struct gfc_forall_iterator *next; 2503 } 2504 gfc_forall_iterator; 2505 2506 2507 /* Linked list to store associations in an ASSOCIATE statement. */ 2508 2509 typedef struct gfc_association_list 2510 { 2511 struct gfc_association_list *next; 2512 2513 /* Whether this is association to a variable that can be changed; otherwise, 2514 it's association to an expression and the name may not be used as 2515 lvalue. */ 2516 unsigned variable:1; 2517 2518 /* True if this struct is currently only linked to from a gfc_symbol rather 2519 than as part of a real list in gfc_code->ext.block.assoc. This may 2520 happen for SELECT TYPE temporaries and must be considered 2521 for memory handling. */ 2522 unsigned dangling:1; 2523 2524 /* True when the rank of the target expression is guessed during parsing. */ 2525 unsigned rankguessed:1; 2526 2527 char name[GFC_MAX_SYMBOL_LEN + 1]; 2528 gfc_symtree *st; /* Symtree corresponding to name. */ 2529 locus where; 2530 2531 gfc_expr *target; 2532 } 2533 gfc_association_list; 2534 #define gfc_get_association_list() XCNEW (gfc_association_list) 2535 2536 2537 /* Executable statements that fill gfc_code structures. */ 2538 enum gfc_exec_op 2539 { 2540 EXEC_NOP = 1, EXEC_END_NESTED_BLOCK, EXEC_END_BLOCK, EXEC_ASSIGN, 2541 EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP, 2542 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN, 2543 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN, 2544 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_CONCURRENT, EXEC_DO_WHILE, 2545 EXEC_SELECT, EXEC_BLOCK, EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, 2546 EXEC_CALL_PPC, EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, 2547 EXEC_SELECT_TYPE, EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES, 2548 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT, 2549 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END, 2550 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH, 2551 EXEC_FORM_TEAM, EXEC_CHANGE_TEAM, EXEC_END_TEAM, EXEC_SYNC_TEAM, 2552 EXEC_LOCK, EXEC_UNLOCK, EXEC_EVENT_POST, EXEC_EVENT_WAIT, EXEC_FAIL_IMAGE, 2553 EXEC_OACC_KERNELS_LOOP, EXEC_OACC_PARALLEL_LOOP, EXEC_OACC_ROUTINE, 2554 EXEC_OACC_PARALLEL, EXEC_OACC_KERNELS, EXEC_OACC_DATA, EXEC_OACC_HOST_DATA, 2555 EXEC_OACC_LOOP, EXEC_OACC_UPDATE, EXEC_OACC_WAIT, EXEC_OACC_CACHE, 2556 EXEC_OACC_ENTER_DATA, EXEC_OACC_EXIT_DATA, EXEC_OACC_ATOMIC, 2557 EXEC_OACC_DECLARE, 2558 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER, 2559 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO, 2560 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE, 2561 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE, 2562 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT, 2563 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT, 2564 EXEC_OMP_TASKYIELD, EXEC_OMP_CANCEL, EXEC_OMP_CANCELLATION_POINT, 2565 EXEC_OMP_TASKGROUP, EXEC_OMP_SIMD, EXEC_OMP_DO_SIMD, 2566 EXEC_OMP_PARALLEL_DO_SIMD, EXEC_OMP_TARGET, EXEC_OMP_TARGET_DATA, 2567 EXEC_OMP_TEAMS, EXEC_OMP_DISTRIBUTE, EXEC_OMP_DISTRIBUTE_SIMD, 2568 EXEC_OMP_DISTRIBUTE_PARALLEL_DO, EXEC_OMP_DISTRIBUTE_PARALLEL_DO_SIMD, 2569 EXEC_OMP_TARGET_TEAMS, EXEC_OMP_TEAMS_DISTRIBUTE, 2570 EXEC_OMP_TEAMS_DISTRIBUTE_SIMD, EXEC_OMP_TARGET_TEAMS_DISTRIBUTE, 2571 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD, 2572 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO, 2573 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO, 2574 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 2575 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 2576 EXEC_OMP_TARGET_UPDATE, EXEC_OMP_END_CRITICAL, 2577 EXEC_OMP_TARGET_ENTER_DATA, EXEC_OMP_TARGET_EXIT_DATA, 2578 EXEC_OMP_TARGET_PARALLEL, EXEC_OMP_TARGET_PARALLEL_DO, 2579 EXEC_OMP_TARGET_PARALLEL_DO_SIMD, EXEC_OMP_TARGET_SIMD, 2580 EXEC_OMP_TASKLOOP, EXEC_OMP_TASKLOOP_SIMD 2581 }; 2582 2583 enum gfc_omp_atomic_op 2584 { 2585 GFC_OMP_ATOMIC_UPDATE = 0, 2586 GFC_OMP_ATOMIC_READ = 1, 2587 GFC_OMP_ATOMIC_WRITE = 2, 2588 GFC_OMP_ATOMIC_CAPTURE = 3, 2589 GFC_OMP_ATOMIC_MASK = 3, 2590 GFC_OMP_ATOMIC_SEQ_CST = 4, 2591 GFC_OMP_ATOMIC_SWAP = 8 2592 }; 2593 2594 typedef struct gfc_code 2595 { 2596 gfc_exec_op op; 2597 2598 struct gfc_code *block, *next; 2599 locus loc; 2600 2601 gfc_st_label *here, *label1, *label2, *label3; 2602 gfc_symtree *symtree; 2603 gfc_expr *expr1, *expr2, *expr3, *expr4; 2604 /* A name isn't sufficient to identify a subroutine, we need the actual 2605 symbol for the interface definition. 2606 const char *sub_name; */ 2607 gfc_symbol *resolved_sym; 2608 gfc_intrinsic_sym *resolved_isym; 2609 2610 union 2611 { 2612 gfc_actual_arglist *actual; 2613 gfc_iterator *iterator; 2614 2615 struct 2616 { 2617 gfc_typespec ts; 2618 gfc_alloc *list; 2619 /* Take the array specification from expr3 to allocate arrays 2620 without an explicit array specification. */ 2621 unsigned arr_spec_from_expr3:1; 2622 } 2623 alloc; 2624 2625 struct 2626 { 2627 gfc_namespace *ns; 2628 gfc_association_list *assoc; 2629 gfc_case *case_list; 2630 } 2631 block; 2632 2633 gfc_open *open; 2634 gfc_close *close; 2635 gfc_filepos *filepos; 2636 gfc_inquire *inquire; 2637 gfc_wait *wait; 2638 gfc_dt *dt; 2639 gfc_forall_iterator *forall_iterator; 2640 struct gfc_code *which_construct; 2641 int stop_code; 2642 gfc_entry_list *entry; 2643 gfc_oacc_declare *oacc_declare; 2644 gfc_omp_clauses *omp_clauses; 2645 const char *omp_name; 2646 gfc_omp_namelist *omp_namelist; 2647 bool omp_bool; 2648 gfc_omp_atomic_op omp_atomic; 2649 } 2650 ext; /* Points to additional structures required by statement */ 2651 2652 /* Cycle and break labels in constructs. */ 2653 tree cycle_label; 2654 tree exit_label; 2655 } 2656 gfc_code; 2657 2658 2659 /* Storage for DATA statements. */ 2660 typedef struct gfc_data_variable 2661 { 2662 gfc_expr *expr; 2663 gfc_iterator iter; 2664 struct gfc_data_variable *list, *next; 2665 } 2666 gfc_data_variable; 2667 2668 2669 typedef struct gfc_data_value 2670 { 2671 mpz_t repeat; 2672 gfc_expr *expr; 2673 struct gfc_data_value *next; 2674 } 2675 gfc_data_value; 2676 2677 2678 typedef struct gfc_data 2679 { 2680 gfc_data_variable *var; 2681 gfc_data_value *value; 2682 locus where; 2683 2684 struct gfc_data *next; 2685 } 2686 gfc_data; 2687 2688 2689 /* Structure for holding compile options */ 2690 typedef struct 2691 { 2692 char *module_dir; 2693 gfc_source_form source_form; 2694 int max_continue_fixed; 2695 int max_continue_free; 2696 int max_identifier_length; 2697 2698 int max_errors; 2699 2700 int flag_preprocessed; 2701 int flag_d_lines; 2702 int flag_init_integer; 2703 long flag_init_integer_value; 2704 int flag_init_logical; 2705 int flag_init_character; 2706 char flag_init_character_value; 2707 2708 int fpe; 2709 int fpe_summary; 2710 int rtcheck; 2711 2712 int warn_std; 2713 int allow_std; 2714 } 2715 gfc_option_t; 2716 2717 extern gfc_option_t gfc_option; 2718 2719 /* Constructor nodes for array and structure constructors. */ 2720 typedef struct gfc_constructor 2721 { 2722 gfc_constructor_base base; 2723 mpz_t offset; /* Offset within a constructor, used as 2724 key within base. */ 2725 2726 gfc_expr *expr; 2727 gfc_iterator *iterator; 2728 locus where; 2729 2730 union 2731 { 2732 gfc_component *component; /* Record the component being initialized. */ 2733 } 2734 n; 2735 mpz_t repeat; /* Record the repeat number of initial values in data 2736 statement like "data a/5*10/". */ 2737 } 2738 gfc_constructor; 2739 2740 2741 typedef struct iterator_stack 2742 { 2743 gfc_symtree *variable; 2744 mpz_t value; 2745 struct iterator_stack *prev; 2746 } 2747 iterator_stack; 2748 extern iterator_stack *iter_stack; 2749 2750 2751 /* Used for (possibly nested) SELECT TYPE statements. */ 2752 typedef struct gfc_select_type_stack 2753 { 2754 gfc_symbol *selector; /* Current selector variable. */ 2755 gfc_symtree *tmp; /* Current temporary variable. */ 2756 struct gfc_select_type_stack *prev; /* Previous element on stack. */ 2757 } 2758 gfc_select_type_stack; 2759 extern gfc_select_type_stack *select_type_stack; 2760 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack) 2761 2762 2763 /* Node in the linked list used for storing finalizer procedures. */ 2764 2765 typedef struct gfc_finalizer 2766 { 2767 struct gfc_finalizer* next; 2768 locus where; /* Where the FINAL declaration occurred. */ 2769 2770 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding 2771 symtree and later need only that. This way, we can access and call the 2772 finalizers from every context as they should be "always accessible". I 2773 don't make this a union because we need the information whether proc_sym is 2774 still referenced or not for dereferencing it on deleting a gfc_finalizer 2775 structure. */ 2776 gfc_symbol* proc_sym; 2777 gfc_symtree* proc_tree; 2778 } 2779 gfc_finalizer; 2780 #define gfc_get_finalizer() XCNEW (gfc_finalizer) 2781 2782 2783 /************************ Function prototypes *************************/ 2784 2785 /* decl.c */ 2786 bool gfc_in_match_data (void); 2787 match gfc_match_char_spec (gfc_typespec *); 2788 extern int directive_unroll; 2789 extern bool directive_ivdep; 2790 extern bool directive_vector; 2791 extern bool directive_novector; 2792 2793 /* SIMD clause enum. */ 2794 enum gfc_simd_clause 2795 { 2796 SIMD_NONE = (1 << 0), 2797 SIMD_INBRANCH = (1 << 1), 2798 SIMD_NOTINBRANCH = (1 << 2) 2799 }; 2800 2801 /* Tuple for parsing of vectorized built-ins. */ 2802 struct gfc_vect_builtin_tuple 2803 { 2804 gfc_vect_builtin_tuple (const char *n, gfc_simd_clause t) 2805 : name (n), simd_type (t) {} 2806 2807 const char *name; 2808 gfc_simd_clause simd_type; 2809 }; 2810 2811 /* Map of middle-end built-ins that should be vectorized. */ 2812 extern hash_map<nofree_string_hash, int> *gfc_vectorized_builtins; 2813 2814 /* Handling Parameterized Derived Types */ 2815 bool gfc_insert_kind_parameter_exprs (gfc_expr *); 2816 bool gfc_insert_parameter_exprs (gfc_expr *, gfc_actual_arglist *); 2817 match gfc_get_pdt_instance (gfc_actual_arglist *, gfc_symbol **, 2818 gfc_actual_arglist **); 2819 2820 /* scanner.c */ 2821 void gfc_scanner_done_1 (void); 2822 void gfc_scanner_init_1 (void); 2823 2824 void gfc_add_include_path (const char *, bool, bool, bool); 2825 void gfc_add_intrinsic_modules_path (const char *); 2826 void gfc_release_include_path (void); 2827 FILE *gfc_open_included_file (const char *, bool, bool); 2828 2829 int gfc_at_end (void); 2830 int gfc_at_eof (void); 2831 int gfc_at_bol (void); 2832 int gfc_at_eol (void); 2833 void gfc_advance_line (void); 2834 int gfc_check_include (void); 2835 int gfc_define_undef_line (void); 2836 2837 int gfc_wide_is_printable (gfc_char_t); 2838 int gfc_wide_is_digit (gfc_char_t); 2839 int gfc_wide_fits_in_byte (gfc_char_t); 2840 gfc_char_t gfc_wide_tolower (gfc_char_t); 2841 gfc_char_t gfc_wide_toupper (gfc_char_t); 2842 size_t gfc_wide_strlen (const gfc_char_t *); 2843 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t); 2844 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t); 2845 char *gfc_widechar_to_char (const gfc_char_t *, int); 2846 gfc_char_t *gfc_char_to_widechar (const char *); 2847 2848 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n) 2849 2850 void gfc_skip_comments (void); 2851 gfc_char_t gfc_next_char_literal (gfc_instring); 2852 gfc_char_t gfc_next_char (void); 2853 char gfc_next_ascii_char (void); 2854 gfc_char_t gfc_peek_char (void); 2855 char gfc_peek_ascii_char (void); 2856 void gfc_error_recovery (void); 2857 void gfc_gobble_whitespace (void); 2858 bool gfc_new_file (void); 2859 const char * gfc_read_orig_filename (const char *, const char **); 2860 2861 extern gfc_source_form gfc_current_form; 2862 extern const char *gfc_source_file; 2863 extern locus gfc_current_locus; 2864 2865 void gfc_start_source_files (void); 2866 void gfc_end_source_files (void); 2867 2868 /* misc.c */ 2869 void gfc_clear_ts (gfc_typespec *); 2870 FILE *gfc_open_file (const char *); 2871 const char *gfc_basic_typename (bt); 2872 const char *gfc_typename (gfc_typespec *); 2873 const char *gfc_op2string (gfc_intrinsic_op); 2874 const char *gfc_code2string (const mstring *, int); 2875 int gfc_string2code (const mstring *, const char *); 2876 const char *gfc_intent_string (sym_intent); 2877 2878 void gfc_init_1 (void); 2879 void gfc_init_2 (void); 2880 void gfc_done_1 (void); 2881 void gfc_done_2 (void); 2882 2883 int get_c_kind (const char *, CInteropKind_t *); 2884 2885 const char *gfc_closest_fuzzy_match (const char *, char **); 2886 static inline void 2887 vec_push (char **&optr, size_t &osz, const char *elt) 2888 { 2889 /* {auto,}vec.safe_push () replacement. Don't ask.. */ 2890 // if (strlen (elt) < 4) return; premature optimization: eliminated by cutoff 2891 optr = XRESIZEVEC (char *, optr, osz + 2); 2892 optr[osz] = CONST_CAST (char *, elt); 2893 optr[++osz] = NULL; 2894 } 2895 2896 HOST_WIDE_INT gfc_mpz_get_hwi (mpz_t); 2897 void gfc_mpz_set_hwi (mpz_t, const HOST_WIDE_INT); 2898 2899 /* options.c */ 2900 unsigned int gfc_option_lang_mask (void); 2901 void gfc_init_options_struct (struct gcc_options *); 2902 void gfc_init_options (unsigned int, 2903 struct cl_decoded_option *); 2904 bool gfc_handle_option (size_t, const char *, HOST_WIDE_INT, int, location_t, 2905 const struct cl_option_handlers *); 2906 bool gfc_post_options (const char **); 2907 char *gfc_get_option_string (void); 2908 2909 /* f95-lang.c */ 2910 void gfc_maybe_initialize_eh (void); 2911 2912 /* iresolve.c */ 2913 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1; 2914 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *); 2915 2916 /* error.c */ 2917 void gfc_error_init_1 (void); 2918 void gfc_diagnostics_init (void); 2919 void gfc_diagnostics_finish (void); 2920 void gfc_buffer_error (bool); 2921 2922 const char *gfc_print_wide_char (gfc_char_t); 2923 2924 bool gfc_warning (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3); 2925 bool gfc_warning_now (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3); 2926 bool gfc_warning_internal (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3); 2927 bool gfc_warning_now_at (location_t loc, int opt, const char *gmsgid, ...) 2928 ATTRIBUTE_GCC_GFC(3,4); 2929 2930 void gfc_clear_warning (void); 2931 void gfc_warning_check (void); 2932 2933 void gfc_error_opt (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3); 2934 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2); 2935 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2); 2936 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2); 2937 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2); 2938 void gfc_clear_error (void); 2939 bool gfc_error_check (void); 2940 bool gfc_error_flag_test (void); 2941 2942 notification gfc_notification_std (int); 2943 bool gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3); 2944 2945 /* A general purpose syntax error. */ 2946 #define gfc_syntax_error(ST) \ 2947 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST)); 2948 2949 #include "pretty-print.h" /* For output_buffer. */ 2950 struct gfc_error_buffer 2951 { 2952 bool flag; 2953 output_buffer buffer; 2954 gfc_error_buffer(void) : flag(false), buffer() {} 2955 }; 2956 2957 void gfc_push_error (gfc_error_buffer *); 2958 void gfc_pop_error (gfc_error_buffer *); 2959 void gfc_free_error (gfc_error_buffer *); 2960 2961 void gfc_get_errors (int *, int *); 2962 void gfc_errors_to_warnings (bool); 2963 2964 /* arith.c */ 2965 void gfc_arith_init_1 (void); 2966 void gfc_arith_done_1 (void); 2967 arith gfc_check_integer_range (mpz_t p, int kind); 2968 bool gfc_check_character_range (gfc_char_t, int); 2969 2970 extern bool gfc_seen_div0; 2971 2972 /* trans-types.c */ 2973 bool gfc_check_any_c_kind (gfc_typespec *); 2974 int gfc_validate_kind (bt, int, bool); 2975 int gfc_get_int_kind_from_width_isofortranenv (int size); 2976 int gfc_get_real_kind_from_width_isofortranenv (int size); 2977 tree gfc_get_union_type (gfc_symbol *); 2978 tree gfc_get_derived_type (gfc_symbol * derived, int codimen = 0); 2979 extern int gfc_index_integer_kind; 2980 extern int gfc_default_integer_kind; 2981 extern int gfc_max_integer_kind; 2982 extern int gfc_default_real_kind; 2983 extern int gfc_default_double_kind; 2984 extern int gfc_default_character_kind; 2985 extern int gfc_default_logical_kind; 2986 extern int gfc_default_complex_kind; 2987 extern int gfc_c_int_kind; 2988 extern int gfc_atomic_int_kind; 2989 extern int gfc_atomic_logical_kind; 2990 extern int gfc_intio_kind; 2991 extern int gfc_charlen_int_kind; 2992 extern int gfc_size_kind; 2993 extern int gfc_numeric_storage_size; 2994 extern int gfc_character_storage_size; 2995 2996 #define gfc_logical_4_kind 4 2997 #define gfc_integer_4_kind 4 2998 #define gfc_real_4_kind 4 2999 3000 /* symbol.c */ 3001 void gfc_clear_new_implicit (void); 3002 bool gfc_add_new_implicit_range (int, int); 3003 bool gfc_merge_new_implicit (gfc_typespec *); 3004 void gfc_set_implicit_none (bool, bool, locus *); 3005 void gfc_check_function_type (gfc_namespace *); 3006 bool gfc_is_intrinsic_typename (const char *); 3007 3008 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *); 3009 bool gfc_set_default_type (gfc_symbol *, int, gfc_namespace *); 3010 3011 void gfc_set_sym_referenced (gfc_symbol *); 3012 3013 bool gfc_add_attribute (symbol_attribute *, locus *); 3014 bool gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *); 3015 bool gfc_add_allocatable (symbol_attribute *, locus *); 3016 bool gfc_add_codimension (symbol_attribute *, const char *, locus *); 3017 bool gfc_add_contiguous (symbol_attribute *, const char *, locus *); 3018 bool gfc_add_dimension (symbol_attribute *, const char *, locus *); 3019 bool gfc_add_external (symbol_attribute *, locus *); 3020 bool gfc_add_intrinsic (symbol_attribute *, locus *); 3021 bool gfc_add_optional (symbol_attribute *, locus *); 3022 bool gfc_add_kind (symbol_attribute *, locus *); 3023 bool gfc_add_len (symbol_attribute *, locus *); 3024 bool gfc_add_pointer (symbol_attribute *, locus *); 3025 bool gfc_add_cray_pointer (symbol_attribute *, locus *); 3026 bool gfc_add_cray_pointee (symbol_attribute *, locus *); 3027 match gfc_mod_pointee_as (gfc_array_spec *); 3028 bool gfc_add_protected (symbol_attribute *, const char *, locus *); 3029 bool gfc_add_result (symbol_attribute *, const char *, locus *); 3030 bool gfc_add_automatic (symbol_attribute *, const char *, locus *); 3031 bool gfc_add_save (symbol_attribute *, save_state, const char *, locus *); 3032 bool gfc_add_threadprivate (symbol_attribute *, const char *, locus *); 3033 bool gfc_add_omp_declare_target (symbol_attribute *, const char *, locus *); 3034 bool gfc_add_omp_declare_target_link (symbol_attribute *, const char *, 3035 locus *); 3036 bool gfc_add_saved_common (symbol_attribute *, locus *); 3037 bool gfc_add_target (symbol_attribute *, locus *); 3038 bool gfc_add_dummy (symbol_attribute *, const char *, locus *); 3039 bool gfc_add_generic (symbol_attribute *, const char *, locus *); 3040 bool gfc_add_common (symbol_attribute *, locus *); 3041 bool gfc_add_in_common (symbol_attribute *, const char *, locus *); 3042 bool gfc_add_in_equivalence (symbol_attribute *, const char *, locus *); 3043 bool gfc_add_data (symbol_attribute *, const char *, locus *); 3044 bool gfc_add_in_namelist (symbol_attribute *, const char *, locus *); 3045 bool gfc_add_sequence (symbol_attribute *, const char *, locus *); 3046 bool gfc_add_elemental (symbol_attribute *, locus *); 3047 bool gfc_add_pure (symbol_attribute *, locus *); 3048 bool gfc_add_recursive (symbol_attribute *, locus *); 3049 bool gfc_add_function (symbol_attribute *, const char *, locus *); 3050 bool gfc_add_subroutine (symbol_attribute *, const char *, locus *); 3051 bool gfc_add_volatile (symbol_attribute *, const char *, locus *); 3052 bool gfc_add_asynchronous (symbol_attribute *, const char *, locus *); 3053 bool gfc_add_proc (symbol_attribute *attr, const char *name, locus *where); 3054 bool gfc_add_abstract (symbol_attribute* attr, locus* where); 3055 3056 bool gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *); 3057 bool gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int); 3058 bool gfc_add_extension (symbol_attribute *, locus *); 3059 bool gfc_add_value (symbol_attribute *, const char *, locus *); 3060 bool gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *); 3061 bool gfc_add_entry (symbol_attribute *, const char *, locus *); 3062 bool gfc_add_procedure (symbol_attribute *, procedure_type, 3063 const char *, locus *); 3064 bool gfc_add_intent (symbol_attribute *, sym_intent, locus *); 3065 bool gfc_add_explicit_interface (gfc_symbol *, ifsrc, 3066 gfc_formal_arglist *, locus *); 3067 bool gfc_add_type (gfc_symbol *, gfc_typespec *, locus *); 3068 3069 void gfc_clear_attr (symbol_attribute *); 3070 bool gfc_missing_attr (symbol_attribute *, locus *); 3071 bool gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *); 3072 int gfc_copy_dummy_sym (gfc_symbol **, gfc_symbol *, int); 3073 bool gfc_add_component (gfc_symbol *, const char *, gfc_component **); 3074 gfc_symbol *gfc_use_derived (gfc_symbol *); 3075 gfc_symtree *gfc_use_derived_tree (gfc_symtree *); 3076 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool, 3077 gfc_ref **); 3078 3079 gfc_st_label *gfc_get_st_label (int); 3080 void gfc_free_st_label (gfc_st_label *); 3081 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *); 3082 bool gfc_reference_st_label (gfc_st_label *, gfc_sl_type); 3083 3084 gfc_namespace *gfc_get_namespace (gfc_namespace *, int); 3085 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *); 3086 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *); 3087 void gfc_delete_symtree (gfc_symtree **, const char *); 3088 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *); 3089 gfc_user_op *gfc_get_uop (const char *); 3090 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *); 3091 void gfc_free_symbol (gfc_symbol *); 3092 void gfc_release_symbol (gfc_symbol *); 3093 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *); 3094 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *); 3095 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **); 3096 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **); 3097 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **); 3098 bool gfc_verify_c_interop (gfc_typespec *); 3099 bool gfc_verify_c_interop_param (gfc_symbol *); 3100 bool verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *); 3101 bool verify_bind_c_derived_type (gfc_symbol *); 3102 bool verify_com_block_vars_c_interop (gfc_common_head *); 3103 gfc_symtree *generate_isocbinding_symbol (const char *, iso_c_binding_symbol, 3104 const char *, gfc_symtree *, bool); 3105 void gfc_save_symbol_data (gfc_symbol *); 3106 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool); 3107 int gfc_get_ha_symbol (const char *, gfc_symbol **); 3108 int gfc_get_ha_sym_tree (const char *, gfc_symtree **); 3109 3110 void gfc_drop_last_undo_checkpoint (void); 3111 void gfc_restore_last_undo_checkpoint (void); 3112 void gfc_undo_symbols (void); 3113 void gfc_commit_symbols (void); 3114 void gfc_commit_symbol (gfc_symbol *); 3115 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *); 3116 void gfc_free_charlen (gfc_charlen *, gfc_charlen *); 3117 void gfc_free_namespace (gfc_namespace *); 3118 3119 void gfc_symbol_init_2 (void); 3120 void gfc_symbol_done_2 (void); 3121 3122 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *)); 3123 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *)); 3124 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *)); 3125 void gfc_save_all (gfc_namespace *); 3126 3127 void gfc_enforce_clean_symbol_state (void); 3128 void gfc_free_dt_list (void); 3129 3130 3131 gfc_gsymbol *gfc_get_gsymbol (const char *, bool bind_c); 3132 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *); 3133 gfc_gsymbol *gfc_find_case_gsymbol (gfc_gsymbol *, const char *); 3134 void gfc_traverse_gsymbol (gfc_gsymbol *, void (*)(gfc_gsymbol *, void *), void *); 3135 3136 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*); 3137 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*); 3138 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*); 3139 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *); 3140 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *); 3141 3142 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *, 3143 gfc_actual_arglist *); 3144 3145 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */ 3146 3147 bool gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus); 3148 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*); 3149 3150 bool gfc_is_associate_pointer (gfc_symbol*); 3151 gfc_symbol * gfc_find_dt_in_generic (gfc_symbol *); 3152 gfc_formal_arglist *gfc_sym_get_dummy_args (gfc_symbol *); 3153 3154 /* intrinsic.c -- true if working in an init-expr, false otherwise. */ 3155 extern bool gfc_init_expr_flag; 3156 3157 /* Given a symbol that we have decided is intrinsic, mark it as such 3158 by placing it into a special module that is otherwise impossible to 3159 read or write. */ 3160 3161 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)") 3162 3163 void gfc_intrinsic_init_1 (void); 3164 void gfc_intrinsic_done_1 (void); 3165 3166 char gfc_type_letter (bt, bool logical_equals_int = false); 3167 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *); 3168 bool gfc_convert_type (gfc_expr *, gfc_typespec *, int); 3169 bool gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int); 3170 bool gfc_convert_chartype (gfc_expr *, gfc_typespec *); 3171 int gfc_generic_intrinsic (const char *); 3172 int gfc_specific_intrinsic (const char *); 3173 bool gfc_is_intrinsic (gfc_symbol*, int, locus); 3174 int gfc_intrinsic_actual_ok (const char *, const bool); 3175 gfc_intrinsic_sym *gfc_find_function (const char *); 3176 gfc_intrinsic_sym *gfc_find_subroutine (const char *); 3177 gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id); 3178 gfc_intrinsic_sym *gfc_intrinsic_subroutine_by_id (gfc_isym_id); 3179 gfc_isym_id gfc_isym_id_by_intmod (intmod_id, int); 3180 gfc_isym_id gfc_isym_id_by_intmod_sym (gfc_symbol *); 3181 3182 3183 match gfc_intrinsic_func_interface (gfc_expr *, int); 3184 match gfc_intrinsic_sub_interface (gfc_code *, int); 3185 3186 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool); 3187 bool gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**, 3188 bool, locus); 3189 3190 /* match.c -- FIXME */ 3191 void gfc_free_iterator (gfc_iterator *, int); 3192 void gfc_free_forall_iterator (gfc_forall_iterator *); 3193 void gfc_free_alloc_list (gfc_alloc *); 3194 void gfc_free_namelist (gfc_namelist *); 3195 void gfc_free_omp_namelist (gfc_omp_namelist *); 3196 void gfc_free_equiv (gfc_equiv *); 3197 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *); 3198 void gfc_free_data (gfc_data *); 3199 void gfc_reject_data (gfc_namespace *); 3200 void gfc_free_case_list (gfc_case *); 3201 3202 /* matchexp.c -- FIXME too? */ 3203 gfc_expr *gfc_get_parentheses (gfc_expr *); 3204 3205 /* openmp.c */ 3206 struct gfc_omp_saved_state { void *ptrs[2]; int ints[1]; }; 3207 void gfc_free_omp_clauses (gfc_omp_clauses *); 3208 void gfc_free_oacc_declare_clauses (struct gfc_oacc_declare *); 3209 void gfc_free_omp_declare_simd (gfc_omp_declare_simd *); 3210 void gfc_free_omp_declare_simd_list (gfc_omp_declare_simd *); 3211 void gfc_free_omp_udr (gfc_omp_udr *); 3212 gfc_omp_udr *gfc_omp_udr_find (gfc_symtree *, gfc_typespec *); 3213 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *); 3214 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *, bool); 3215 void gfc_resolve_omp_local_vars (gfc_namespace *); 3216 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *); 3217 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *); 3218 void gfc_resolve_omp_declare_simd (gfc_namespace *); 3219 void gfc_resolve_omp_udrs (gfc_symtree *); 3220 void gfc_omp_save_and_clear_state (struct gfc_omp_saved_state *); 3221 void gfc_omp_restore_state (struct gfc_omp_saved_state *); 3222 void gfc_free_expr_list (gfc_expr_list *); 3223 void gfc_resolve_oacc_directive (gfc_code *, gfc_namespace *); 3224 void gfc_resolve_oacc_declare (gfc_namespace *); 3225 void gfc_resolve_oacc_parallel_loop_blocks (gfc_code *, gfc_namespace *); 3226 void gfc_resolve_oacc_blocks (gfc_code *, gfc_namespace *); 3227 void gfc_resolve_oacc_routines (gfc_namespace *); 3228 3229 /* expr.c */ 3230 void gfc_free_actual_arglist (gfc_actual_arglist *); 3231 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *); 3232 3233 bool gfc_extract_int (gfc_expr *, int *, int = 0); 3234 bool gfc_extract_hwi (gfc_expr *, HOST_WIDE_INT *, int = 0); 3235 3236 bool is_CFI_desc (gfc_symbol *, gfc_expr *); 3237 bool is_subref_array (gfc_expr *); 3238 bool gfc_is_simply_contiguous (gfc_expr *, bool, bool); 3239 bool gfc_is_not_contiguous (gfc_expr *); 3240 bool gfc_check_init_expr (gfc_expr *); 3241 3242 gfc_expr *gfc_build_conversion (gfc_expr *); 3243 void gfc_free_ref_list (gfc_ref *); 3244 void gfc_type_convert_binary (gfc_expr *, int); 3245 bool gfc_is_constant_expr (gfc_expr *); 3246 bool gfc_simplify_expr (gfc_expr *, int); 3247 int gfc_has_vector_index (gfc_expr *); 3248 3249 gfc_expr *gfc_get_expr (void); 3250 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *); 3251 gfc_expr *gfc_get_null_expr (locus *); 3252 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *); 3253 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *); 3254 gfc_expr *gfc_get_constant_expr (bt, int, locus *); 3255 gfc_expr *gfc_get_character_expr (int, locus *, const char *, gfc_charlen_t len); 3256 gfc_expr *gfc_get_int_expr (int, locus *, HOST_WIDE_INT); 3257 gfc_expr *gfc_get_logical_expr (int, locus *, bool); 3258 gfc_expr *gfc_get_iokind_expr (locus *, io_kind); 3259 3260 void gfc_clear_shape (mpz_t *shape, int rank); 3261 void gfc_free_shape (mpz_t **shape, int rank); 3262 void gfc_free_expr (gfc_expr *); 3263 void gfc_replace_expr (gfc_expr *, gfc_expr *); 3264 mpz_t *gfc_copy_shape (mpz_t *, int); 3265 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *); 3266 gfc_expr *gfc_copy_expr (gfc_expr *); 3267 gfc_ref* gfc_copy_ref (gfc_ref*); 3268 3269 bool gfc_specification_expr (gfc_expr *); 3270 3271 int gfc_numeric_ts (gfc_typespec *); 3272 int gfc_kind_max (gfc_expr *, gfc_expr *); 3273 3274 bool gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3; 3275 bool gfc_check_assign (gfc_expr *, gfc_expr *, int, bool c = true); 3276 bool gfc_check_pointer_assign (gfc_expr *lvalue, gfc_expr *rvalue, 3277 bool suppres_type_test = false, 3278 bool is_init_expr = false); 3279 bool gfc_check_assign_symbol (gfc_symbol *, gfc_component *, gfc_expr *); 3280 3281 gfc_expr *gfc_build_default_init_expr (gfc_typespec *, locus *); 3282 gfc_expr *gfc_build_init_expr (gfc_typespec *, locus *, bool); 3283 void gfc_apply_init (gfc_typespec *, symbol_attribute *, gfc_expr *); 3284 bool gfc_has_default_initializer (gfc_symbol *); 3285 gfc_expr *gfc_default_initializer (gfc_typespec *); 3286 gfc_expr *gfc_generate_initializer (gfc_typespec *, bool); 3287 gfc_expr *gfc_get_variable_expr (gfc_symtree *); 3288 void gfc_add_full_array_ref (gfc_expr *, gfc_array_spec *); 3289 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *); 3290 3291 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr); 3292 3293 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *, 3294 bool (*)(gfc_expr *, gfc_symbol *, int*), 3295 int); 3296 void gfc_expr_set_symbols_referenced (gfc_expr *); 3297 bool gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool); 3298 bool gfc_derived_parameter_expr (gfc_expr *); 3299 gfc_param_spec_type gfc_spec_list_type (gfc_actual_arglist *, gfc_symbol *); 3300 gfc_component * gfc_get_proc_ptr_comp (gfc_expr *); 3301 bool gfc_is_proc_ptr_comp (gfc_expr *); 3302 bool gfc_is_alloc_class_scalar_function (gfc_expr *); 3303 bool gfc_is_class_array_function (gfc_expr *); 3304 3305 bool gfc_ref_this_image (gfc_ref *ref); 3306 bool gfc_is_coindexed (gfc_expr *); 3307 bool gfc_is_coarray (gfc_expr *); 3308 int gfc_get_corank (gfc_expr *); 3309 bool gfc_has_ultimate_allocatable (gfc_expr *); 3310 bool gfc_has_ultimate_pointer (gfc_expr *); 3311 gfc_expr* gfc_find_team_co (gfc_expr *); 3312 gfc_expr* gfc_find_stat_co (gfc_expr *); 3313 gfc_expr* gfc_build_intrinsic_call (gfc_namespace *, gfc_isym_id, const char*, 3314 locus, unsigned, ...); 3315 bool gfc_check_vardef_context (gfc_expr*, bool, bool, bool, const char*); 3316 3317 3318 /* st.c */ 3319 extern gfc_code new_st; 3320 3321 void gfc_clear_new_st (void); 3322 gfc_code *gfc_get_code (gfc_exec_op); 3323 gfc_code *gfc_append_code (gfc_code *, gfc_code *); 3324 void gfc_free_statement (gfc_code *); 3325 void gfc_free_statements (gfc_code *); 3326 void gfc_free_association_list (gfc_association_list *); 3327 3328 /* resolve.c */ 3329 bool gfc_resolve_expr (gfc_expr *); 3330 void gfc_resolve (gfc_namespace *); 3331 void gfc_resolve_code (gfc_code *, gfc_namespace *); 3332 void gfc_resolve_blocks (gfc_code *, gfc_namespace *); 3333 int gfc_impure_variable (gfc_symbol *); 3334 int gfc_pure (gfc_symbol *); 3335 int gfc_implicit_pure (gfc_symbol *); 3336 void gfc_unset_implicit_pure (gfc_symbol *); 3337 int gfc_elemental (gfc_symbol *); 3338 bool gfc_resolve_iterator (gfc_iterator *, bool, bool); 3339 bool find_forall_index (gfc_expr *, gfc_symbol *, int); 3340 bool gfc_resolve_index (gfc_expr *, int); 3341 bool gfc_resolve_dim_arg (gfc_expr *); 3342 bool gfc_is_formal_arg (void); 3343 void gfc_resolve_substring_charlen (gfc_expr *); 3344 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *); 3345 gfc_expr *gfc_expr_to_initialize (gfc_expr *); 3346 bool gfc_type_is_extensible (gfc_symbol *); 3347 bool gfc_resolve_intrinsic (gfc_symbol *, locus *); 3348 bool gfc_explicit_interface_required (gfc_symbol *, char *, int); 3349 extern int gfc_do_concurrent_flag; 3350 const char* gfc_lookup_function_fuzzy (const char *, gfc_symtree *); 3351 int gfc_pure_function (gfc_expr *e, const char **name); 3352 int gfc_implicit_pure_function (gfc_expr *e); 3353 3354 3355 /* array.c */ 3356 gfc_iterator *gfc_copy_iterator (gfc_iterator *); 3357 3358 void gfc_free_array_spec (gfc_array_spec *); 3359 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *); 3360 3361 bool gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *); 3362 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *); 3363 bool gfc_resolve_array_spec (gfc_array_spec *, int); 3364 3365 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *); 3366 3367 void gfc_simplify_iterator_var (gfc_expr *); 3368 bool gfc_expand_constructor (gfc_expr *, bool); 3369 int gfc_constant_ac (gfc_expr *); 3370 int gfc_expanded_ac (gfc_expr *); 3371 bool gfc_resolve_character_array_constructor (gfc_expr *); 3372 bool gfc_resolve_array_constructor (gfc_expr *); 3373 bool gfc_check_constructor_type (gfc_expr *); 3374 bool gfc_check_iter_variable (gfc_expr *); 3375 bool gfc_check_constructor (gfc_expr *, bool (*)(gfc_expr *)); 3376 bool gfc_array_size (gfc_expr *, mpz_t *); 3377 bool gfc_array_dimen_size (gfc_expr *, int, mpz_t *); 3378 bool gfc_array_ref_shape (gfc_array_ref *, mpz_t *); 3379 gfc_array_ref *gfc_find_array_ref (gfc_expr *, bool a = false); 3380 tree gfc_conv_array_initializer (tree type, gfc_expr *); 3381 bool spec_size (gfc_array_spec *, mpz_t *); 3382 bool spec_dimen_size (gfc_array_spec *, int, mpz_t *); 3383 bool gfc_is_compile_time_shape (gfc_array_spec *); 3384 3385 bool gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *); 3386 3387 3388 #define gfc_str_startswith(str, pref) \ 3389 (strncmp ((str), (pref), strlen (pref)) == 0) 3390 3391 /* interface.c -- FIXME: some of these should be in symbol.c */ 3392 void gfc_free_interface (gfc_interface *); 3393 bool gfc_compare_derived_types (gfc_symbol *, gfc_symbol *); 3394 bool gfc_compare_types (gfc_typespec *, gfc_typespec *); 3395 bool gfc_check_dummy_characteristics (gfc_symbol *, gfc_symbol *, 3396 bool, char *, int); 3397 bool gfc_check_result_characteristics (gfc_symbol *, gfc_symbol *, 3398 char *, int); 3399 bool gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int, 3400 char *, int, const char *, const char *); 3401 void gfc_check_interfaces (gfc_namespace *); 3402 bool gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *); 3403 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *); 3404 gfc_symbol *gfc_search_interface (gfc_interface *, int, 3405 gfc_actual_arglist **); 3406 match gfc_extend_expr (gfc_expr *); 3407 void gfc_free_formal_arglist (gfc_formal_arglist *); 3408 bool gfc_extend_assign (gfc_code *, gfc_namespace *); 3409 bool gfc_check_new_interface (gfc_interface *, gfc_symbol *, locus); 3410 bool gfc_add_interface (gfc_symbol *); 3411 gfc_interface *gfc_current_interface_head (void); 3412 void gfc_set_current_interface_head (gfc_interface *); 3413 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*); 3414 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*); 3415 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus); 3416 bool gfc_has_vector_subscript (gfc_expr*); 3417 gfc_intrinsic_op gfc_equivalent_op (gfc_intrinsic_op); 3418 bool gfc_check_typebound_override (gfc_symtree*, gfc_symtree*); 3419 void gfc_check_dtio_interfaces (gfc_symbol*); 3420 gfc_symtree* gfc_find_typebound_dtio_proc (gfc_symbol *, bool, bool); 3421 gfc_symbol* gfc_find_specific_dtio_proc (gfc_symbol*, bool, bool); 3422 3423 3424 /* io.c */ 3425 extern gfc_st_label format_asterisk; 3426 3427 void gfc_free_open (gfc_open *); 3428 bool gfc_resolve_open (gfc_open *); 3429 void gfc_free_close (gfc_close *); 3430 bool gfc_resolve_close (gfc_close *); 3431 void gfc_free_filepos (gfc_filepos *); 3432 bool gfc_resolve_filepos (gfc_filepos *, locus *); 3433 void gfc_free_inquire (gfc_inquire *); 3434 bool gfc_resolve_inquire (gfc_inquire *); 3435 void gfc_free_dt (gfc_dt *); 3436 bool gfc_resolve_dt (gfc_dt *, locus *); 3437 void gfc_free_wait (gfc_wait *); 3438 bool gfc_resolve_wait (gfc_wait *); 3439 extern bool async_io_dt; 3440 3441 /* module.c */ 3442 void gfc_module_init_2 (void); 3443 void gfc_module_done_2 (void); 3444 void gfc_dump_module (const char *, int); 3445 bool gfc_check_symbol_access (gfc_symbol *); 3446 void gfc_free_use_stmts (gfc_use_list *); 3447 const char *gfc_dt_lower_string (const char *); 3448 const char *gfc_dt_upper_string (const char *); 3449 3450 /* primary.c */ 3451 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *); 3452 symbol_attribute gfc_expr_attr (gfc_expr *); 3453 symbol_attribute gfc_caf_attr (gfc_expr *, bool i = false, bool *r = NULL); 3454 match gfc_match_rvalue (gfc_expr **); 3455 match gfc_match_varspec (gfc_expr*, int, bool, bool); 3456 int gfc_check_digit (char, int); 3457 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *); 3458 bool gfc_convert_to_structure_constructor (gfc_expr *, gfc_symbol *, 3459 gfc_expr **, 3460 gfc_actual_arglist **, bool); 3461 3462 /* trans.c */ 3463 void gfc_generate_code (gfc_namespace *); 3464 void gfc_generate_module_code (gfc_namespace *); 3465 3466 /* trans-intrinsic.c */ 3467 bool gfc_inline_intrinsic_function_p (gfc_expr *); 3468 3469 /* bbt.c */ 3470 typedef int (*compare_fn) (void *, void *); 3471 void gfc_insert_bbt (void *, void *, compare_fn); 3472 void gfc_delete_bbt (void *, void *, compare_fn); 3473 3474 /* dump-parse-tree.c */ 3475 void gfc_dump_parse_tree (gfc_namespace *, FILE *); 3476 void gfc_dump_c_prototypes (gfc_namespace *, FILE *); 3477 void gfc_dump_external_c_prototypes (FILE *); 3478 void gfc_dump_global_symbols (FILE *); 3479 3480 /* parse.c */ 3481 bool gfc_parse_file (void); 3482 void gfc_global_used (gfc_gsymbol *, locus *); 3483 gfc_namespace* gfc_build_block_ns (gfc_namespace *); 3484 3485 /* dependency.c */ 3486 int gfc_dep_compare_functions (gfc_expr *, gfc_expr *, bool); 3487 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *); 3488 bool gfc_dep_difference (gfc_expr *, gfc_expr *, mpz_t *); 3489 3490 /* check.c */ 3491 bool gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*); 3492 bool gfc_calculate_transfer_sizes (gfc_expr*, gfc_expr*, gfc_expr*, 3493 size_t*, size_t*, size_t*); 3494 3495 /* class.c */ 3496 void gfc_fix_class_refs (gfc_expr *e); 3497 void gfc_add_component_ref (gfc_expr *, const char *); 3498 void gfc_add_class_array_ref (gfc_expr *); 3499 #define gfc_add_data_component(e) gfc_add_component_ref(e,"_data") 3500 #define gfc_add_vptr_component(e) gfc_add_component_ref(e,"_vptr") 3501 #define gfc_add_len_component(e) gfc_add_component_ref(e,"_len") 3502 #define gfc_add_hash_component(e) gfc_add_component_ref(e,"_hash") 3503 #define gfc_add_size_component(e) gfc_add_component_ref(e,"_size") 3504 #define gfc_add_def_init_component(e) gfc_add_component_ref(e,"_def_init") 3505 #define gfc_add_final_component(e) gfc_add_component_ref(e,"_final") 3506 bool gfc_is_class_array_ref (gfc_expr *, bool *); 3507 bool gfc_is_class_scalar_expr (gfc_expr *); 3508 bool gfc_is_class_container_ref (gfc_expr *e); 3509 gfc_expr *gfc_class_initializer (gfc_typespec *, gfc_expr *); 3510 unsigned int gfc_hash_value (gfc_symbol *); 3511 gfc_expr *gfc_get_len_component (gfc_expr *e, int); 3512 bool gfc_build_class_symbol (gfc_typespec *, symbol_attribute *, 3513 gfc_array_spec **); 3514 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *); 3515 gfc_symbol *gfc_find_vtab (gfc_typespec *); 3516 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, bool*, 3517 const char*, bool, locus*); 3518 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, bool*, 3519 const char*, bool, locus*); 3520 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, bool*, 3521 gfc_intrinsic_op, bool, 3522 locus*); 3523 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*); 3524 bool gfc_is_finalizable (gfc_symbol *, gfc_expr **); 3525 3526 #define CLASS_DATA(sym) sym->ts.u.derived->components 3527 #define UNLIMITED_POLY(sym) \ 3528 (sym != NULL && sym->ts.type == BT_CLASS \ 3529 && CLASS_DATA (sym) \ 3530 && CLASS_DATA (sym)->ts.u.derived \ 3531 && CLASS_DATA (sym)->ts.u.derived->attr.unlimited_polymorphic) 3532 #define IS_CLASS_ARRAY(sym) \ 3533 (sym->ts.type == BT_CLASS \ 3534 && CLASS_DATA (sym) \ 3535 && CLASS_DATA (sym)->attr.dimension \ 3536 && !CLASS_DATA (sym)->attr.class_pointer) 3537 3538 /* frontend-passes.c */ 3539 3540 void gfc_run_passes (gfc_namespace *); 3541 3542 typedef int (*walk_code_fn_t) (gfc_code **, int *, void *); 3543 typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *); 3544 3545 int gfc_dummy_code_callback (gfc_code **, int *, void *); 3546 int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *); 3547 int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *); 3548 3549 /* simplify.c */ 3550 3551 void gfc_convert_mpz_to_signed (mpz_t, int); 3552 gfc_expr *gfc_simplify_ieee_functions (gfc_expr *); 3553 bool gfc_is_size_zero_array (gfc_expr *); 3554 3555 /* trans-array.c */ 3556 3557 bool gfc_is_reallocatable_lhs (gfc_expr *); 3558 3559 /* trans-decl.c */ 3560 3561 void finish_oacc_declare (gfc_namespace *, gfc_symbol *, bool); 3562 void gfc_adjust_builtins (void); 3563 3564 #endif /* GCC_GFORTRAN_H */ 3565