1 /* gfortran header file 2 Copyright (C) 2000-2014 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 /* Declarations common to the front-end and library are put in 35 libgfortran/libgfortran_frontend.h */ 36 #include "libgfortran.h" 37 38 39 #include "intl.h" 40 #include "input.h" 41 #include "splay-tree.h" 42 #include "vec.h" 43 44 /* Major control parameters. */ 45 46 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */ 47 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */ 48 49 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */ 50 51 52 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t')) 53 54 /* Stringization. */ 55 #define stringize(x) expand_macro(x) 56 #define expand_macro(x) # x 57 58 /* For the runtime library, a standard prefix is a requirement to 59 avoid cluttering the namespace with things nobody asked for. It's 60 ugly to look at and a pain to type when you add the prefix by hand, 61 so we hide it behind a macro. */ 62 #define PREFIX(x) "_gfortran_" x 63 #define PREFIX_LEN 10 64 65 /* A prefix for internal variables, which are not user-visible. */ 66 #if !defined (NO_DOT_IN_LABEL) 67 # define GFC_PREFIX(x) "_F." x 68 #elif !defined (NO_DOLLAR_IN_LABEL) 69 # define GFC_PREFIX(x) "_F$" x 70 #else 71 # define GFC_PREFIX(x) "_F_" x 72 #endif 73 74 #define BLANK_COMMON_NAME "__BLNK__" 75 76 /* Macro to initialize an mstring structure. */ 77 #define minit(s, t) { s, NULL, t } 78 79 /* Structure for storing strings to be matched by gfc_match_string. */ 80 typedef struct 81 { 82 const char *string; 83 const char *mp; 84 int tag; 85 } 86 mstring; 87 88 89 90 /*************************** Enums *****************************/ 91 92 /* Used when matching and resolving data I/O transfer statements. */ 93 94 typedef enum 95 { M_READ, M_WRITE, M_PRINT, M_INQUIRE } 96 io_kind; 97 98 99 /* These are flags for identifying whether we are reading a character literal 100 between quotes or normal source code. */ 101 102 typedef enum 103 { NONSTRING = 0, INSTRING_WARN, INSTRING_NOWARN } 104 gfc_instring; 105 106 /* This is returned by gfc_notification_std to know if, given the flags 107 that were given (-std=, -pedantic) we should issue an error, a warning 108 or nothing. */ 109 110 typedef enum 111 { SILENT, WARNING, ERROR } 112 notification; 113 114 /* Matchers return one of these three values. The difference between 115 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was 116 successful, but that something non-syntactic is wrong and an error 117 has already been issued. */ 118 119 typedef enum 120 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR } 121 match; 122 123 /* Used for different Fortran source forms in places like scanner.c. */ 124 typedef enum 125 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN } 126 gfc_source_form; 127 128 /* Expression node types. */ 129 typedef enum 130 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE, 131 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC 132 } 133 expr_t; 134 135 /* Array types. */ 136 typedef enum 137 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED, 138 AS_ASSUMED_SIZE, AS_IMPLIED_SHAPE, AS_ASSUMED_RANK, 139 AS_UNKNOWN 140 } 141 array_type; 142 143 typedef enum 144 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN } 145 ar_type; 146 147 /* Statement label types. ST_LABEL_DO_TARGET is used for obsolescent warnings 148 related to shared DO terminations and DO targets which are neither END DO 149 nor CONTINUE; otherwise it is identical to ST_LABEL_TARGET. */ 150 typedef enum 151 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET, ST_LABEL_DO_TARGET, 152 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT 153 } 154 gfc_sl_type; 155 156 /* Intrinsic operators. */ 157 typedef enum 158 { GFC_INTRINSIC_BEGIN = 0, 159 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN, 160 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES, 161 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT, 162 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV, 163 /* ==, /=, >, >=, <, <= */ 164 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE, 165 INTRINSIC_LT, INTRINSIC_LE, 166 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */ 167 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS, 168 INTRINSIC_LT_OS, INTRINSIC_LE_OS, 169 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN, 170 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */ 171 } 172 gfc_intrinsic_op; 173 174 /* This macro is the number of intrinsic operators that exist. 175 Assumptions are made about the numbering of the interface_op enums. */ 176 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END 177 178 /* Arithmetic results. */ 179 typedef enum 180 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN, 181 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT 182 } 183 arith; 184 185 /* Statements. */ 186 typedef enum 187 { 188 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE, 189 ST_BACKSPACE, ST_BLOCK, ST_BLOCK_DATA, 190 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE, 191 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF, 192 ST_ELSEWHERE, ST_END_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA, 193 ST_ENDDO, ST_IMPLIED_ENDDO, 194 ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF, 195 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT, 196 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE, 197 ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, 198 ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, 199 ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY, ST_SYNC_IMAGES, 200 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN, 201 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND, 202 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WAIT, 203 ST_WRITE, ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE, 204 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT, 205 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS, 206 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_ATOMIC, 207 ST_OMP_END_CRITICAL, ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, 208 ST_OMP_END_PARALLEL, ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS, 209 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE, 210 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED, 211 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS, 212 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE, 213 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK, 214 ST_OMP_TASKWAIT, ST_OMP_TASKYIELD, ST_OMP_CANCEL, ST_OMP_CANCELLATION_POINT, 215 ST_OMP_TASKGROUP, ST_OMP_END_TASKGROUP, ST_OMP_SIMD, ST_OMP_END_SIMD, 216 ST_OMP_DO_SIMD, ST_OMP_END_DO_SIMD, ST_OMP_PARALLEL_DO_SIMD, 217 ST_OMP_END_PARALLEL_DO_SIMD, ST_OMP_DECLARE_SIMD, ST_OMP_DECLARE_REDUCTION, 218 ST_OMP_TARGET, ST_OMP_END_TARGET, ST_OMP_TARGET_DATA, ST_OMP_END_TARGET_DATA, 219 ST_OMP_TARGET_UPDATE, ST_OMP_DECLARE_TARGET, 220 ST_OMP_TEAMS, ST_OMP_END_TEAMS, ST_OMP_DISTRIBUTE, ST_OMP_END_DISTRIBUTE, 221 ST_OMP_DISTRIBUTE_SIMD, ST_OMP_END_DISTRIBUTE_SIMD, 222 ST_OMP_DISTRIBUTE_PARALLEL_DO, ST_OMP_END_DISTRIBUTE_PARALLEL_DO, 223 ST_OMP_DISTRIBUTE_PARALLEL_DO_SIMD, ST_OMP_END_DISTRIBUTE_PARALLEL_DO_SIMD, 224 ST_OMP_TARGET_TEAMS, ST_OMP_END_TARGET_TEAMS, ST_OMP_TEAMS_DISTRIBUTE, 225 ST_OMP_END_TEAMS_DISTRIBUTE, ST_OMP_TEAMS_DISTRIBUTE_SIMD, 226 ST_OMP_END_TEAMS_DISTRIBUTE_SIMD, ST_OMP_TARGET_TEAMS_DISTRIBUTE, 227 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE, ST_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD, 228 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_SIMD, ST_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO, 229 ST_OMP_END_TEAMS_DISTRIBUTE_PARALLEL_DO, 230 ST_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO, 231 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO, 232 ST_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 233 ST_OMP_END_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 234 ST_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 235 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 236 ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL, 237 ST_GET_FCN_CHARACTERISTICS, ST_LOCK, ST_UNLOCK, ST_NONE 238 } 239 gfc_statement; 240 241 /* Types of interfaces that we can have. Assignment interfaces are 242 considered to be intrinsic operators. */ 243 typedef enum 244 { 245 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC, 246 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT 247 } 248 interface_type; 249 250 /* Symbol flavors: these are all mutually exclusive. 251 10 elements = 4 bits. */ 252 typedef enum sym_flavor 253 { 254 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE, 255 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST, 256 FL_VOID 257 } 258 sym_flavor; 259 260 /* Procedure types. 7 elements = 3 bits. */ 261 typedef enum procedure_type 262 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY, 263 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL 264 } 265 procedure_type; 266 267 /* Intent types. */ 268 typedef enum sym_intent 269 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT 270 } 271 sym_intent; 272 273 /* Access types. */ 274 typedef enum gfc_access 275 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE 276 } 277 gfc_access; 278 279 /* Flags to keep track of where an interface came from. 280 3 elements = 2 bits. */ 281 typedef enum ifsrc 282 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */ 283 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */ 284 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement 285 with explicit interface. */ 286 } 287 ifsrc; 288 289 /* Whether a SAVE attribute was set explicitly or implicitly. */ 290 typedef enum save_state 291 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT 292 } 293 save_state; 294 295 /* Strings for all symbol attributes. We use these for dumping the 296 parse tree, in error messages, and also when reading and writing 297 modules. In symbol.c. */ 298 extern const mstring flavors[]; 299 extern const mstring procedures[]; 300 extern const mstring intents[]; 301 extern const mstring access_types[]; 302 extern const mstring ifsrc_types[]; 303 extern const mstring save_status[]; 304 305 /* Enumeration of all the generic intrinsic functions. Used by the 306 backend for identification of a function. */ 307 308 enum gfc_isym_id 309 { 310 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by 311 the backend (e.g. KIND). */ 312 GFC_ISYM_NONE = 0, 313 GFC_ISYM_ABORT, 314 GFC_ISYM_ABS, 315 GFC_ISYM_ACCESS, 316 GFC_ISYM_ACHAR, 317 GFC_ISYM_ACOS, 318 GFC_ISYM_ACOSH, 319 GFC_ISYM_ADJUSTL, 320 GFC_ISYM_ADJUSTR, 321 GFC_ISYM_AIMAG, 322 GFC_ISYM_AINT, 323 GFC_ISYM_ALARM, 324 GFC_ISYM_ALL, 325 GFC_ISYM_ALLOCATED, 326 GFC_ISYM_AND, 327 GFC_ISYM_ANINT, 328 GFC_ISYM_ANY, 329 GFC_ISYM_ASIN, 330 GFC_ISYM_ASINH, 331 GFC_ISYM_ASSOCIATED, 332 GFC_ISYM_ATAN, 333 GFC_ISYM_ATAN2, 334 GFC_ISYM_ATANH, 335 GFC_ISYM_ATOMIC_DEF, 336 GFC_ISYM_ATOMIC_REF, 337 GFC_ISYM_BGE, 338 GFC_ISYM_BGT, 339 GFC_ISYM_BIT_SIZE, 340 GFC_ISYM_BLE, 341 GFC_ISYM_BLT, 342 GFC_ISYM_BTEST, 343 GFC_ISYM_CEILING, 344 GFC_ISYM_CHAR, 345 GFC_ISYM_CHDIR, 346 GFC_ISYM_CHMOD, 347 GFC_ISYM_CMPLX, 348 GFC_ISYM_COMMAND_ARGUMENT_COUNT, 349 GFC_ISYM_COMPILER_OPTIONS, 350 GFC_ISYM_COMPILER_VERSION, 351 GFC_ISYM_COMPLEX, 352 GFC_ISYM_CONJG, 353 GFC_ISYM_CONVERSION, 354 GFC_ISYM_COS, 355 GFC_ISYM_COSH, 356 GFC_ISYM_COUNT, 357 GFC_ISYM_CPU_TIME, 358 GFC_ISYM_CSHIFT, 359 GFC_ISYM_CTIME, 360 GFC_ISYM_C_ASSOCIATED, 361 GFC_ISYM_C_F_POINTER, 362 GFC_ISYM_C_F_PROCPOINTER, 363 GFC_ISYM_C_FUNLOC, 364 GFC_ISYM_C_LOC, 365 GFC_ISYM_C_SIZEOF, 366 GFC_ISYM_DATE_AND_TIME, 367 GFC_ISYM_DBLE, 368 GFC_ISYM_DIGITS, 369 GFC_ISYM_DIM, 370 GFC_ISYM_DOT_PRODUCT, 371 GFC_ISYM_DPROD, 372 GFC_ISYM_DSHIFTL, 373 GFC_ISYM_DSHIFTR, 374 GFC_ISYM_DTIME, 375 GFC_ISYM_EOSHIFT, 376 GFC_ISYM_EPSILON, 377 GFC_ISYM_ERF, 378 GFC_ISYM_ERFC, 379 GFC_ISYM_ERFC_SCALED, 380 GFC_ISYM_ETIME, 381 GFC_ISYM_EXECUTE_COMMAND_LINE, 382 GFC_ISYM_EXIT, 383 GFC_ISYM_EXP, 384 GFC_ISYM_EXPONENT, 385 GFC_ISYM_EXTENDS_TYPE_OF, 386 GFC_ISYM_FDATE, 387 GFC_ISYM_FGET, 388 GFC_ISYM_FGETC, 389 GFC_ISYM_FLOOR, 390 GFC_ISYM_FLUSH, 391 GFC_ISYM_FNUM, 392 GFC_ISYM_FPUT, 393 GFC_ISYM_FPUTC, 394 GFC_ISYM_FRACTION, 395 GFC_ISYM_FREE, 396 GFC_ISYM_FSEEK, 397 GFC_ISYM_FSTAT, 398 GFC_ISYM_FTELL, 399 GFC_ISYM_TGAMMA, 400 GFC_ISYM_GERROR, 401 GFC_ISYM_GETARG, 402 GFC_ISYM_GET_COMMAND, 403 GFC_ISYM_GET_COMMAND_ARGUMENT, 404 GFC_ISYM_GETCWD, 405 GFC_ISYM_GETENV, 406 GFC_ISYM_GET_ENVIRONMENT_VARIABLE, 407 GFC_ISYM_GETGID, 408 GFC_ISYM_GETLOG, 409 GFC_ISYM_GETPID, 410 GFC_ISYM_GETUID, 411 GFC_ISYM_GMTIME, 412 GFC_ISYM_HOSTNM, 413 GFC_ISYM_HUGE, 414 GFC_ISYM_HYPOT, 415 GFC_ISYM_IACHAR, 416 GFC_ISYM_IALL, 417 GFC_ISYM_IAND, 418 GFC_ISYM_IANY, 419 GFC_ISYM_IARGC, 420 GFC_ISYM_IBCLR, 421 GFC_ISYM_IBITS, 422 GFC_ISYM_IBSET, 423 GFC_ISYM_ICHAR, 424 GFC_ISYM_IDATE, 425 GFC_ISYM_IEOR, 426 GFC_ISYM_IERRNO, 427 GFC_ISYM_IMAGE_INDEX, 428 GFC_ISYM_INDEX, 429 GFC_ISYM_INT, 430 GFC_ISYM_INT2, 431 GFC_ISYM_INT8, 432 GFC_ISYM_IOR, 433 GFC_ISYM_IPARITY, 434 GFC_ISYM_IRAND, 435 GFC_ISYM_ISATTY, 436 GFC_ISYM_IS_IOSTAT_END, 437 GFC_ISYM_IS_IOSTAT_EOR, 438 GFC_ISYM_ISNAN, 439 GFC_ISYM_ISHFT, 440 GFC_ISYM_ISHFTC, 441 GFC_ISYM_ITIME, 442 GFC_ISYM_J0, 443 GFC_ISYM_J1, 444 GFC_ISYM_JN, 445 GFC_ISYM_JN2, 446 GFC_ISYM_KILL, 447 GFC_ISYM_KIND, 448 GFC_ISYM_LBOUND, 449 GFC_ISYM_LCOBOUND, 450 GFC_ISYM_LEADZ, 451 GFC_ISYM_LEN, 452 GFC_ISYM_LEN_TRIM, 453 GFC_ISYM_LGAMMA, 454 GFC_ISYM_LGE, 455 GFC_ISYM_LGT, 456 GFC_ISYM_LINK, 457 GFC_ISYM_LLE, 458 GFC_ISYM_LLT, 459 GFC_ISYM_LOC, 460 GFC_ISYM_LOG, 461 GFC_ISYM_LOG10, 462 GFC_ISYM_LOGICAL, 463 GFC_ISYM_LONG, 464 GFC_ISYM_LSHIFT, 465 GFC_ISYM_LSTAT, 466 GFC_ISYM_LTIME, 467 GFC_ISYM_MALLOC, 468 GFC_ISYM_MASKL, 469 GFC_ISYM_MASKR, 470 GFC_ISYM_MATMUL, 471 GFC_ISYM_MAX, 472 GFC_ISYM_MAXEXPONENT, 473 GFC_ISYM_MAXLOC, 474 GFC_ISYM_MAXVAL, 475 GFC_ISYM_MCLOCK, 476 GFC_ISYM_MCLOCK8, 477 GFC_ISYM_MERGE, 478 GFC_ISYM_MERGE_BITS, 479 GFC_ISYM_MIN, 480 GFC_ISYM_MINEXPONENT, 481 GFC_ISYM_MINLOC, 482 GFC_ISYM_MINVAL, 483 GFC_ISYM_MOD, 484 GFC_ISYM_MODULO, 485 GFC_ISYM_MOVE_ALLOC, 486 GFC_ISYM_MVBITS, 487 GFC_ISYM_NEAREST, 488 GFC_ISYM_NEW_LINE, 489 GFC_ISYM_NINT, 490 GFC_ISYM_NORM2, 491 GFC_ISYM_NOT, 492 GFC_ISYM_NULL, 493 GFC_ISYM_NUM_IMAGES, 494 GFC_ISYM_OR, 495 GFC_ISYM_PACK, 496 GFC_ISYM_PARITY, 497 GFC_ISYM_PERROR, 498 GFC_ISYM_POPCNT, 499 GFC_ISYM_POPPAR, 500 GFC_ISYM_PRECISION, 501 GFC_ISYM_PRESENT, 502 GFC_ISYM_PRODUCT, 503 GFC_ISYM_RADIX, 504 GFC_ISYM_RAND, 505 GFC_ISYM_RANDOM_NUMBER, 506 GFC_ISYM_RANDOM_SEED, 507 GFC_ISYM_RANGE, 508 GFC_ISYM_RANK, 509 GFC_ISYM_REAL, 510 GFC_ISYM_RENAME, 511 GFC_ISYM_REPEAT, 512 GFC_ISYM_RESHAPE, 513 GFC_ISYM_RRSPACING, 514 GFC_ISYM_RSHIFT, 515 GFC_ISYM_SAME_TYPE_AS, 516 GFC_ISYM_SC_KIND, 517 GFC_ISYM_SCALE, 518 GFC_ISYM_SCAN, 519 GFC_ISYM_SECNDS, 520 GFC_ISYM_SECOND, 521 GFC_ISYM_SET_EXPONENT, 522 GFC_ISYM_SHAPE, 523 GFC_ISYM_SHIFTA, 524 GFC_ISYM_SHIFTL, 525 GFC_ISYM_SHIFTR, 526 GFC_ISYM_BACKTRACE, 527 GFC_ISYM_SIGN, 528 GFC_ISYM_SIGNAL, 529 GFC_ISYM_SI_KIND, 530 GFC_ISYM_SIN, 531 GFC_ISYM_SINH, 532 GFC_ISYM_SIZE, 533 GFC_ISYM_SLEEP, 534 GFC_ISYM_SIZEOF, 535 GFC_ISYM_SPACING, 536 GFC_ISYM_SPREAD, 537 GFC_ISYM_SQRT, 538 GFC_ISYM_SRAND, 539 GFC_ISYM_SR_KIND, 540 GFC_ISYM_STAT, 541 GFC_ISYM_STORAGE_SIZE, 542 GFC_ISYM_STRIDE, 543 GFC_ISYM_SUM, 544 GFC_ISYM_SYMLINK, 545 GFC_ISYM_SYMLNK, 546 GFC_ISYM_SYSTEM, 547 GFC_ISYM_SYSTEM_CLOCK, 548 GFC_ISYM_TAN, 549 GFC_ISYM_TANH, 550 GFC_ISYM_THIS_IMAGE, 551 GFC_ISYM_TIME, 552 GFC_ISYM_TIME8, 553 GFC_ISYM_TINY, 554 GFC_ISYM_TRAILZ, 555 GFC_ISYM_TRANSFER, 556 GFC_ISYM_TRANSPOSE, 557 GFC_ISYM_TRIM, 558 GFC_ISYM_TTYNAM, 559 GFC_ISYM_UBOUND, 560 GFC_ISYM_UCOBOUND, 561 GFC_ISYM_UMASK, 562 GFC_ISYM_UNLINK, 563 GFC_ISYM_UNPACK, 564 GFC_ISYM_VERIFY, 565 GFC_ISYM_XOR, 566 GFC_ISYM_Y0, 567 GFC_ISYM_Y1, 568 GFC_ISYM_YN, 569 GFC_ISYM_YN2 570 }; 571 typedef enum gfc_isym_id gfc_isym_id; 572 573 574 typedef enum 575 { 576 GFC_INIT_REAL_OFF = 0, 577 GFC_INIT_REAL_ZERO, 578 GFC_INIT_REAL_NAN, 579 GFC_INIT_REAL_SNAN, 580 GFC_INIT_REAL_INF, 581 GFC_INIT_REAL_NEG_INF 582 } 583 init_local_real; 584 585 typedef enum 586 { 587 GFC_INIT_LOGICAL_OFF = 0, 588 GFC_INIT_LOGICAL_FALSE, 589 GFC_INIT_LOGICAL_TRUE 590 } 591 init_local_logical; 592 593 typedef enum 594 { 595 GFC_INIT_CHARACTER_OFF = 0, 596 GFC_INIT_CHARACTER_ON 597 } 598 init_local_character; 599 600 typedef enum 601 { 602 GFC_INIT_INTEGER_OFF = 0, 603 GFC_INIT_INTEGER_ON 604 } 605 init_local_integer; 606 607 typedef enum 608 { 609 GFC_FCOARRAY_NONE = 0, 610 GFC_FCOARRAY_SINGLE, 611 GFC_FCOARRAY_LIB 612 } 613 gfc_fcoarray; 614 615 typedef enum 616 { 617 GFC_ENABLE_REVERSE, 618 GFC_FORWARD_SET, 619 GFC_REVERSE_SET, 620 GFC_INHIBIT_REVERSE 621 } 622 gfc_reverse; 623 624 /************************* Structures *****************************/ 625 626 /* Used for keeping things in balanced binary trees. */ 627 #define BBT_HEADER(self) int priority; struct self *left, *right 628 629 #define NAMED_INTCST(a,b,c,d) a, 630 #define NAMED_KINDARRAY(a,b,c,d) a, 631 #define NAMED_FUNCTION(a,b,c,d) a, 632 #define NAMED_SUBROUTINE(a,b,c,d) a, 633 #define NAMED_DERIVED_TYPE(a,b,c,d) a, 634 typedef enum 635 { 636 ISOFORTRANENV_INVALID = -1, 637 #include "iso-fortran-env.def" 638 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST 639 } 640 iso_fortran_env_symbol; 641 #undef NAMED_INTCST 642 #undef NAMED_KINDARRAY 643 #undef NAMED_FUNCTION 644 #undef NAMED_SUBROUTINE 645 #undef NAMED_DERIVED_TYPE 646 647 #define NAMED_INTCST(a,b,c,d) a, 648 #define NAMED_REALCST(a,b,c,d) a, 649 #define NAMED_CMPXCST(a,b,c,d) a, 650 #define NAMED_LOGCST(a,b,c) a, 651 #define NAMED_CHARKNDCST(a,b,c) a, 652 #define NAMED_CHARCST(a,b,c) a, 653 #define DERIVED_TYPE(a,b,c) a, 654 #define NAMED_FUNCTION(a,b,c,d) a, 655 #define NAMED_SUBROUTINE(a,b,c,d) a, 656 typedef enum 657 { 658 ISOCBINDING_INVALID = -1, 659 #include "iso-c-binding.def" 660 ISOCBINDING_LAST, 661 ISOCBINDING_NUMBER = ISOCBINDING_LAST 662 } 663 iso_c_binding_symbol; 664 #undef NAMED_INTCST 665 #undef NAMED_REALCST 666 #undef NAMED_CMPXCST 667 #undef NAMED_LOGCST 668 #undef NAMED_CHARKNDCST 669 #undef NAMED_CHARCST 670 #undef DERIVED_TYPE 671 #undef NAMED_FUNCTION 672 #undef NAMED_SUBROUTINE 673 674 typedef enum 675 { 676 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING 677 } 678 intmod_id; 679 680 typedef struct 681 { 682 char name[GFC_MAX_SYMBOL_LEN + 1]; 683 int value; /* Used for both integer and character values. */ 684 bt f90_type; 685 } 686 CInteropKind_t; 687 688 /* Array of structs, where the structs represent the C interop kinds. 689 The list will be implemented based on a hash of the kind name since 690 these could be accessed multiple times. 691 Declared in trans-types.c as a global, since it's in that file 692 that the list is initialized. */ 693 extern CInteropKind_t c_interop_kinds_table[]; 694 695 696 /* Structure and list of supported extension attributes. */ 697 typedef enum 698 { 699 EXT_ATTR_DLLIMPORT = 0, 700 EXT_ATTR_DLLEXPORT, 701 EXT_ATTR_STDCALL, 702 EXT_ATTR_CDECL, 703 EXT_ATTR_FASTCALL, 704 EXT_ATTR_NO_ARG_CHECK, 705 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST 706 } 707 ext_attr_id_t; 708 709 typedef struct 710 { 711 const char *name; 712 unsigned id; 713 const char *middle_end_name; 714 } 715 ext_attr_t; 716 717 extern const ext_attr_t ext_attr_list[]; 718 719 /* Symbol attribute structure. */ 720 typedef struct 721 { 722 /* Variable attributes. */ 723 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1, 724 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1, 725 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1, 726 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1, 727 contiguous:1, fe_temp: 1; 728 729 /* For CLASS containers, the pointer attribute is sometimes set internally 730 even though it was not directly specified. In this case, keep the 731 "real" (original) value here. */ 732 unsigned class_pointer:1; 733 734 ENUM_BITFIELD (save_state) save:2; 735 736 unsigned data:1, /* Symbol is named in a DATA statement. */ 737 is_protected:1, /* Symbol has been marked as protected. */ 738 use_assoc:1, /* Symbol has been use-associated. */ 739 use_only:1, /* Symbol has been use-associated, with ONLY. */ 740 use_rename:1, /* Symbol has been use-associated and renamed. */ 741 imported:1, /* Symbol has been associated by IMPORT. */ 742 host_assoc:1; /* Symbol has been host associated. */ 743 744 unsigned in_namelist:1, in_common:1, in_equivalence:1; 745 unsigned function:1, subroutine:1, procedure:1; 746 unsigned generic:1, generic_copy:1; 747 unsigned implicit_type:1; /* Type defined via implicit rules. */ 748 unsigned untyped:1; /* No implicit type could be found. */ 749 750 unsigned is_bind_c:1; /* say if is bound to C. */ 751 unsigned extension:8; /* extension level of a derived type. */ 752 unsigned is_class:1; /* is a CLASS container. */ 753 unsigned class_ok:1; /* is a CLASS object with correct attributes. */ 754 unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */ 755 unsigned vtype:1; /* is a derived type of a vtab. */ 756 757 /* These flags are both in the typespec and attribute. The attribute 758 list is what gets read from/written to a module file. The typespec 759 is created from a decl being processed. */ 760 unsigned is_c_interop:1; /* It's c interoperable. */ 761 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */ 762 763 /* Function/subroutine attributes */ 764 unsigned sequence:1, elemental:1, pure:1, recursive:1; 765 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1; 766 767 /* Set if a (public) symbol [e.g. generic name] exposes this symbol, 768 which is relevant for private module procedures. */ 769 unsigned public_used:1; 770 771 /* This is set if a contained procedure could be declared pure. This is 772 used for certain optimizations that require the result or arguments 773 cannot alias. Note that this is zero for PURE procedures. */ 774 unsigned implicit_pure:1; 775 776 /* This is set if the subroutine doesn't return. Currently, this 777 is only possible for intrinsic subroutines. */ 778 unsigned noreturn:1; 779 780 /* Set if this procedure is an alternate entry point. These procedures 781 don't have any code associated, and the backend will turn them into 782 thunks to the master function. */ 783 unsigned entry:1; 784 785 /* Set if this is the master function for a procedure with multiple 786 entry points. */ 787 unsigned entry_master:1; 788 789 /* Set if this is the master function for a function with multiple 790 entry points where characteristics of the entry points differ. */ 791 unsigned mixed_entry_master:1; 792 793 /* Set if a function must always be referenced by an explicit interface. */ 794 unsigned always_explicit:1; 795 796 /* Set if the symbol is generated and, hence, standard violations 797 shouldn't be flaged. */ 798 unsigned artificial:1; 799 800 /* Set if the symbol has been referenced in an expression. No further 801 modification of type or type parameters is permitted. */ 802 unsigned referenced:1; 803 804 /* Set if this is the symbol for the main program. */ 805 unsigned is_main_program:1; 806 807 /* Mutually exclusive multibit attributes. */ 808 ENUM_BITFIELD (gfc_access) access:2; 809 ENUM_BITFIELD (sym_intent) intent:2; 810 ENUM_BITFIELD (sym_flavor) flavor:4; 811 ENUM_BITFIELD (ifsrc) if_source:2; 812 813 ENUM_BITFIELD (procedure_type) proc:3; 814 815 /* Special attributes for Cray pointers, pointees. */ 816 unsigned cray_pointer:1, cray_pointee:1; 817 818 /* The symbol is a derived type with allocatable components, pointer 819 components or private components, procedure pointer components, 820 possibly nested. zero_comp is true if the derived type has no 821 component at all. defined_assign_comp is true if the derived 822 type or a (sub-)component has a typebound defined assignment. 823 unlimited_polymorphic flags the type of the container for these 824 entities. */ 825 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1, 826 private_comp:1, zero_comp:1, coarray_comp:1, lock_comp:1, 827 defined_assign_comp:1, unlimited_polymorphic:1; 828 829 /* This is a temporary selector for SELECT TYPE or an associate 830 variable for SELECT_TYPE or ASSOCIATE. */ 831 unsigned select_type_temporary:1, associate_var:1; 832 833 /* This is omp_{out,in,priv,orig} artificial variable in 834 !$OMP DECLARE REDUCTION. */ 835 unsigned omp_udr_artificial_var:1; 836 837 /* Mentioned in OMP DECLARE TARGET. */ 838 unsigned omp_declare_target:1; 839 840 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */ 841 unsigned ext_attr:EXT_ATTR_NUM; 842 843 /* Is a parameter associated with a deferred type component. */ 844 unsigned deferred_parameter:1; 845 846 /* The namespace where the attribute has been set. */ 847 struct gfc_namespace *volatile_ns, *asynchronous_ns; 848 } 849 symbol_attribute; 850 851 852 /* We need to store source lines as sequences of multibyte source 853 characters. We define here a type wide enough to hold any multibyte 854 source character, just like libcpp does. A 32-bit type is enough. */ 855 856 #if HOST_BITS_PER_INT >= 32 857 typedef unsigned int gfc_char_t; 858 #elif HOST_BITS_PER_LONG >= 32 859 typedef unsigned long gfc_char_t; 860 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32) 861 typedef unsigned long long gfc_char_t; 862 #else 863 # error "Cannot find an integer type with at least 32 bits" 864 #endif 865 866 867 /* The following three structures are used to identify a location in 868 the sources. 869 870 gfc_file is used to maintain a tree of the source files and how 871 they include each other 872 873 gfc_linebuf holds a single line of source code and information 874 which file it resides in 875 876 locus point to the sourceline and the character in the source 877 line. 878 */ 879 880 typedef struct gfc_file 881 { 882 struct gfc_file *next, *up; 883 int inclusion_line, line; 884 char *filename; 885 } gfc_file; 886 887 typedef struct gfc_linebuf 888 { 889 source_location location; 890 struct gfc_file *file; 891 struct gfc_linebuf *next; 892 893 int truncated; 894 bool dbg_emitted; 895 896 gfc_char_t line[1]; 897 } gfc_linebuf; 898 899 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line)) 900 901 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location)) 902 903 typedef struct 904 { 905 gfc_char_t *nextc; 906 gfc_linebuf *lb; 907 } locus; 908 909 /* In order for the "gfc" format checking to work correctly, you must 910 have declared a typedef locus first. */ 911 #if GCC_VERSION >= 4001 912 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m) 913 #else 914 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m) 915 #endif 916 917 918 /* Suppress error messages or re-enable them. */ 919 920 void gfc_push_suppress_errors (void); 921 void gfc_pop_suppress_errors (void); 922 923 924 /* Character length structures hold the expression that gives the 925 length of a character variable. We avoid putting these into 926 gfc_typespec because doing so prevents us from doing structure 927 copies and forces us to deallocate any typespecs we create, as well 928 as structures that contain typespecs. They also can have multiple 929 character typespecs pointing to them. 930 931 These structures form a singly linked list within the current 932 namespace and are deallocated with the namespace. It is possible to 933 end up with gfc_charlen structures that have nothing pointing to them. */ 934 935 typedef struct gfc_charlen 936 { 937 struct gfc_expr *length; 938 struct gfc_charlen *next; 939 bool length_from_typespec; /* Length from explicit array ctor typespec? */ 940 tree backend_decl; 941 tree passed_length; /* Length argument explicitly passed. */ 942 943 int resolved; 944 } 945 gfc_charlen; 946 947 #define gfc_get_charlen() XCNEW (gfc_charlen) 948 949 /* Type specification structure. */ 950 typedef struct 951 { 952 bt type; 953 int kind; 954 955 union 956 { 957 struct gfc_symbol *derived; /* For derived types only. */ 958 gfc_charlen *cl; /* For character types only. */ 959 int pad; /* For hollerith types only. */ 960 } 961 u; 962 963 struct gfc_symbol *interface; /* For PROCEDURE declarations. */ 964 int is_c_interop; 965 int is_iso_c; 966 bt f90_type; 967 bool deferred; 968 } 969 gfc_typespec; 970 971 /* Array specification. */ 972 typedef struct 973 { 974 int rank; /* A scalar has a rank of 0, an assumed-rank array has -1. */ 975 int corank; 976 array_type type, cotype; 977 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS]; 978 979 /* These two fields are used with the Cray Pointer extension. */ 980 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */ 981 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to 982 AS_EXPLICIT, but we want to remember that we 983 did this. */ 984 985 } 986 gfc_array_spec; 987 988 #define gfc_get_array_spec() XCNEW (gfc_array_spec) 989 990 991 /* Components of derived types. */ 992 typedef struct gfc_component 993 { 994 const char *name; 995 gfc_typespec ts; 996 997 symbol_attribute attr; 998 gfc_array_spec *as; 999 1000 tree backend_decl; 1001 /* Used to cache a FIELD_DECL matching this same component 1002 but applied to a different backend containing type that was 1003 generated by gfc_nonrestricted_type. */ 1004 tree norestrict_decl; 1005 locus loc; 1006 struct gfc_expr *initializer; 1007 struct gfc_component *next; 1008 1009 /* Needed for procedure pointer components. */ 1010 struct gfc_typebound_proc *tb; 1011 } 1012 gfc_component; 1013 1014 #define gfc_get_component() XCNEW (gfc_component) 1015 1016 /* Formal argument lists are lists of symbols. */ 1017 typedef struct gfc_formal_arglist 1018 { 1019 /* Symbol representing the argument at this position in the arglist. */ 1020 struct gfc_symbol *sym; 1021 /* Points to the next formal argument. */ 1022 struct gfc_formal_arglist *next; 1023 } 1024 gfc_formal_arglist; 1025 1026 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist) 1027 1028 1029 /* The gfc_actual_arglist structure is for actual arguments. */ 1030 typedef struct gfc_actual_arglist 1031 { 1032 const char *name; 1033 /* Alternate return label when the expr member is null. */ 1034 struct gfc_st_label *label; 1035 1036 /* This is set to the type of an eventual omitted optional 1037 argument. This is used to determine if a hidden string length 1038 argument has to be added to a function call. */ 1039 bt missing_arg_type; 1040 1041 struct gfc_expr *expr; 1042 struct gfc_actual_arglist *next; 1043 } 1044 gfc_actual_arglist; 1045 1046 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist) 1047 1048 1049 /* Because a symbol can belong to multiple namelists, they must be 1050 linked externally to the symbol itself. */ 1051 typedef struct gfc_namelist 1052 { 1053 struct gfc_symbol *sym; 1054 struct gfc_namelist *next; 1055 } 1056 gfc_namelist; 1057 1058 #define gfc_get_namelist() XCNEW (gfc_namelist) 1059 1060 typedef enum 1061 { 1062 OMP_REDUCTION_NONE = -1, 1063 OMP_REDUCTION_PLUS = INTRINSIC_PLUS, 1064 OMP_REDUCTION_MINUS = INTRINSIC_MINUS, 1065 OMP_REDUCTION_TIMES = INTRINSIC_TIMES, 1066 OMP_REDUCTION_AND = INTRINSIC_AND, 1067 OMP_REDUCTION_OR = INTRINSIC_OR, 1068 OMP_REDUCTION_EQV = INTRINSIC_EQV, 1069 OMP_REDUCTION_NEQV = INTRINSIC_NEQV, 1070 OMP_REDUCTION_MAX = GFC_INTRINSIC_END, 1071 OMP_REDUCTION_MIN, 1072 OMP_REDUCTION_IAND, 1073 OMP_REDUCTION_IOR, 1074 OMP_REDUCTION_IEOR, 1075 OMP_REDUCTION_USER 1076 } 1077 gfc_omp_reduction_op; 1078 1079 typedef enum 1080 { 1081 OMP_DEPEND_IN, 1082 OMP_DEPEND_OUT, 1083 OMP_DEPEND_INOUT 1084 } 1085 gfc_omp_depend_op; 1086 1087 typedef enum 1088 { 1089 OMP_MAP_ALLOC, 1090 OMP_MAP_TO, 1091 OMP_MAP_FROM, 1092 OMP_MAP_TOFROM 1093 } 1094 gfc_omp_map_op; 1095 1096 /* For use in OpenMP clauses in case we need extra information 1097 (aligned clause alignment, linear clause step, etc.). */ 1098 1099 typedef struct gfc_omp_namelist 1100 { 1101 struct gfc_symbol *sym; 1102 struct gfc_expr *expr; 1103 union 1104 { 1105 gfc_omp_reduction_op reduction_op; 1106 gfc_omp_depend_op depend_op; 1107 gfc_omp_map_op map_op; 1108 } u; 1109 struct gfc_omp_namelist_udr *udr; 1110 struct gfc_omp_namelist *next; 1111 } 1112 gfc_omp_namelist; 1113 1114 #define gfc_get_omp_namelist() XCNEW (gfc_omp_namelist) 1115 1116 enum 1117 { 1118 OMP_LIST_PRIVATE, 1119 OMP_LIST_FIRSTPRIVATE, 1120 OMP_LIST_LASTPRIVATE, 1121 OMP_LIST_COPYPRIVATE, 1122 OMP_LIST_SHARED, 1123 OMP_LIST_COPYIN, 1124 OMP_LIST_UNIFORM, 1125 OMP_LIST_ALIGNED, 1126 OMP_LIST_LINEAR, 1127 OMP_LIST_DEPEND, 1128 OMP_LIST_MAP, 1129 OMP_LIST_TO, 1130 OMP_LIST_FROM, 1131 OMP_LIST_REDUCTION, 1132 OMP_LIST_NUM 1133 }; 1134 1135 /* Because a symbol can belong to multiple namelists, they must be 1136 linked externally to the symbol itself. */ 1137 1138 enum gfc_omp_sched_kind 1139 { 1140 OMP_SCHED_NONE, 1141 OMP_SCHED_STATIC, 1142 OMP_SCHED_DYNAMIC, 1143 OMP_SCHED_GUIDED, 1144 OMP_SCHED_RUNTIME, 1145 OMP_SCHED_AUTO 1146 }; 1147 1148 enum gfc_omp_default_sharing 1149 { 1150 OMP_DEFAULT_UNKNOWN, 1151 OMP_DEFAULT_NONE, 1152 OMP_DEFAULT_PRIVATE, 1153 OMP_DEFAULT_SHARED, 1154 OMP_DEFAULT_FIRSTPRIVATE 1155 }; 1156 1157 enum gfc_omp_proc_bind_kind 1158 { 1159 OMP_PROC_BIND_UNKNOWN, 1160 OMP_PROC_BIND_MASTER, 1161 OMP_PROC_BIND_SPREAD, 1162 OMP_PROC_BIND_CLOSE 1163 }; 1164 1165 enum gfc_omp_cancel_kind 1166 { 1167 OMP_CANCEL_UNKNOWN, 1168 OMP_CANCEL_PARALLEL, 1169 OMP_CANCEL_SECTIONS, 1170 OMP_CANCEL_DO, 1171 OMP_CANCEL_TASKGROUP 1172 }; 1173 1174 typedef struct gfc_omp_clauses 1175 { 1176 struct gfc_expr *if_expr; 1177 struct gfc_expr *final_expr; 1178 struct gfc_expr *num_threads; 1179 gfc_omp_namelist *lists[OMP_LIST_NUM]; 1180 enum gfc_omp_sched_kind sched_kind; 1181 struct gfc_expr *chunk_size; 1182 enum gfc_omp_default_sharing default_sharing; 1183 int collapse; 1184 bool nowait, ordered, untied, mergeable; 1185 bool inbranch, notinbranch; 1186 enum gfc_omp_cancel_kind cancel; 1187 enum gfc_omp_proc_bind_kind proc_bind; 1188 struct gfc_expr *safelen_expr; 1189 struct gfc_expr *simdlen_expr; 1190 struct gfc_expr *num_teams; 1191 struct gfc_expr *device; 1192 struct gfc_expr *thread_limit; 1193 enum gfc_omp_sched_kind dist_sched_kind; 1194 struct gfc_expr *dist_chunk_size; 1195 } 1196 gfc_omp_clauses; 1197 1198 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses) 1199 1200 1201 /* Node in the linked list used for storing !$omp declare simd constructs. */ 1202 1203 typedef struct gfc_omp_declare_simd 1204 { 1205 struct gfc_omp_declare_simd *next; 1206 locus where; /* Where the !$omp declare simd construct occurred. */ 1207 1208 gfc_symbol *proc_name; 1209 1210 gfc_omp_clauses *clauses; 1211 } 1212 gfc_omp_declare_simd; 1213 #define gfc_get_omp_declare_simd() XCNEW (gfc_omp_declare_simd) 1214 1215 typedef struct gfc_omp_udr 1216 { 1217 struct gfc_omp_udr *next; 1218 locus where; /* Where the !$omp declare reduction construct occurred. */ 1219 1220 const char *name; 1221 gfc_typespec ts; 1222 gfc_omp_reduction_op rop; 1223 1224 struct gfc_symbol *omp_out; 1225 struct gfc_symbol *omp_in; 1226 struct gfc_namespace *combiner_ns; 1227 1228 struct gfc_symbol *omp_priv; 1229 struct gfc_symbol *omp_orig; 1230 struct gfc_namespace *initializer_ns; 1231 } 1232 gfc_omp_udr; 1233 #define gfc_get_omp_udr() XCNEW (gfc_omp_udr) 1234 1235 typedef struct gfc_omp_namelist_udr 1236 { 1237 struct gfc_omp_udr *udr; 1238 struct gfc_code *combiner; 1239 struct gfc_code *initializer; 1240 } 1241 gfc_omp_namelist_udr; 1242 #define gfc_get_omp_namelist_udr() XCNEW (gfc_omp_namelist_udr) 1243 1244 /* The gfc_st_label structure is a BBT attached to a namespace that 1245 records the usage of statement labels within that space. */ 1246 1247 typedef struct gfc_st_label 1248 { 1249 BBT_HEADER(gfc_st_label); 1250 1251 int value; 1252 1253 gfc_sl_type defined, referenced; 1254 1255 struct gfc_expr *format; 1256 1257 tree backend_decl; 1258 1259 locus where; 1260 } 1261 gfc_st_label; 1262 1263 1264 /* gfc_interface()-- Interfaces are lists of symbols strung together. */ 1265 typedef struct gfc_interface 1266 { 1267 struct gfc_symbol *sym; 1268 locus where; 1269 struct gfc_interface *next; 1270 } 1271 gfc_interface; 1272 1273 #define gfc_get_interface() XCNEW (gfc_interface) 1274 1275 /* User operator nodes. These are like stripped down symbols. */ 1276 typedef struct 1277 { 1278 const char *name; 1279 1280 gfc_interface *op; 1281 struct gfc_namespace *ns; 1282 gfc_access access; 1283 } 1284 gfc_user_op; 1285 1286 1287 /* A list of specific bindings that are associated with a generic spec. */ 1288 typedef struct gfc_tbp_generic 1289 { 1290 /* The parser sets specific_st, upon resolution we look for the corresponding 1291 gfc_typebound_proc and set specific for further use. */ 1292 struct gfc_symtree* specific_st; 1293 struct gfc_typebound_proc* specific; 1294 1295 struct gfc_tbp_generic* next; 1296 bool is_operator; 1297 } 1298 gfc_tbp_generic; 1299 1300 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic) 1301 1302 1303 /* Data needed for type-bound procedures. */ 1304 typedef struct gfc_typebound_proc 1305 { 1306 locus where; /* Where the PROCEDURE/GENERIC definition was. */ 1307 1308 union 1309 { 1310 struct gfc_symtree* specific; /* The interface if DEFERRED. */ 1311 gfc_tbp_generic* generic; 1312 } 1313 u; 1314 1315 gfc_access access; 1316 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */ 1317 1318 /* The overridden type-bound proc (or GENERIC with this name in the 1319 parent-type) or NULL if non. */ 1320 struct gfc_typebound_proc* overridden; 1321 1322 /* Once resolved, we use the position of pass_arg in the formal arglist of 1323 the binding-target procedure to identify it. The first argument has 1324 number 1 here, the second 2, and so on. */ 1325 unsigned pass_arg_num; 1326 1327 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */ 1328 unsigned non_overridable:1; 1329 unsigned deferred:1; 1330 unsigned is_generic:1; 1331 unsigned function:1, subroutine:1; 1332 unsigned error:1; /* Ignore it, when an error occurred during resolution. */ 1333 unsigned ppc:1; 1334 } 1335 gfc_typebound_proc; 1336 1337 1338 /* Symbol nodes. These are important things. They are what the 1339 standard refers to as "entities". The possibly multiple names that 1340 refer to the same entity are accomplished by a binary tree of 1341 symtree structures that is balanced by the red-black method-- more 1342 than one symtree node can point to any given symbol. */ 1343 1344 typedef struct gfc_symbol 1345 { 1346 const char *name; /* Primary name, before renaming */ 1347 const char *module; /* Module this symbol came from */ 1348 locus declared_at; 1349 1350 gfc_typespec ts; 1351 symbol_attribute attr; 1352 1353 /* The formal member points to the formal argument list if the 1354 symbol is a function or subroutine name. If the symbol is a 1355 generic name, the generic member points to the list of 1356 interfaces. */ 1357 1358 gfc_interface *generic; 1359 gfc_access component_access; 1360 1361 gfc_formal_arglist *formal; 1362 struct gfc_namespace *formal_ns; 1363 struct gfc_namespace *f2k_derived; 1364 1365 struct gfc_expr *value; /* Parameter/Initializer value */ 1366 gfc_array_spec *as; 1367 struct gfc_symbol *result; /* function result symbol */ 1368 gfc_component *components; /* Derived type components */ 1369 1370 /* Defined only for Cray pointees; points to their pointer. */ 1371 struct gfc_symbol *cp_pointer; 1372 1373 int entry_id; /* Used in resolve.c for entries. */ 1374 1375 /* CLASS hashed name for declared and dynamic types in the class. */ 1376 int hash_value; 1377 1378 struct gfc_symbol *common_next; /* Links for COMMON syms */ 1379 1380 /* This is in fact a gfc_common_head but it is only used for pointer 1381 comparisons to check if symbols are in the same common block. */ 1382 struct gfc_common_head* common_head; 1383 1384 /* Make sure setup code for dummy arguments is generated in the correct 1385 order. */ 1386 int dummy_order; 1387 1388 gfc_namelist *namelist, *namelist_tail; 1389 1390 /* Change management fields. Symbols that might be modified by the 1391 current statement have the mark member nonzero and are kept in a 1392 singly linked list through the tlink field. Of these symbols, 1393 symbols with old_symbol equal to NULL are symbols created within 1394 the current statement. Otherwise, old_symbol points to a copy of 1395 the old symbol. */ 1396 1397 struct gfc_symbol *old_symbol, *tlink; 1398 unsigned mark:1, gfc_new:1; 1399 /* Nonzero if all equivalences associated with this symbol have been 1400 processed. */ 1401 unsigned equiv_built:1; 1402 /* Set if this variable is used as an index name in a FORALL. */ 1403 unsigned forall_index:1; 1404 /* Used to avoid multiple resolutions of a single symbol. */ 1405 unsigned resolved:1; 1406 1407 int refs; 1408 struct gfc_namespace *ns; /* namespace containing this symbol */ 1409 1410 tree backend_decl; 1411 1412 /* Identity of the intrinsic module the symbol comes from, or 1413 INTMOD_NONE if it's not imported from a intrinsic module. */ 1414 intmod_id from_intmod; 1415 /* Identity of the symbol from intrinsic modules, from enums maintained 1416 separately by each intrinsic module. Used together with from_intmod, 1417 it uniquely identifies a symbol from an intrinsic module. */ 1418 int intmod_sym_id; 1419 1420 /* This may be repetitive, since the typespec now has a binding 1421 label field. */ 1422 const char* binding_label; 1423 /* Store a reference to the common_block, if this symbol is in one. */ 1424 struct gfc_common_head *common_block; 1425 1426 /* Link to corresponding association-list if this is an associate name. */ 1427 struct gfc_association_list *assoc; 1428 } 1429 gfc_symbol; 1430 1431 1432 struct gfc_undo_change_set 1433 { 1434 vec<gfc_symbol *> syms; 1435 vec<gfc_typebound_proc *> tbps; 1436 gfc_undo_change_set *previous; 1437 }; 1438 1439 1440 /* This structure is used to keep track of symbols in common blocks. */ 1441 typedef struct gfc_common_head 1442 { 1443 locus where; 1444 char use_assoc, saved, threadprivate, omp_declare_target; 1445 char name[GFC_MAX_SYMBOL_LEN + 1]; 1446 struct gfc_symbol *head; 1447 const char* binding_label; 1448 int is_bind_c; 1449 int refs; 1450 } 1451 gfc_common_head; 1452 1453 #define gfc_get_common_head() XCNEW (gfc_common_head) 1454 1455 1456 /* A list of all the alternate entry points for a procedure. */ 1457 1458 typedef struct gfc_entry_list 1459 { 1460 /* The symbol for this entry point. */ 1461 gfc_symbol *sym; 1462 /* The zero-based id of this entry point. */ 1463 int id; 1464 /* The LABEL_EXPR marking this entry point. */ 1465 tree label; 1466 /* The next item in the list. */ 1467 struct gfc_entry_list *next; 1468 } 1469 gfc_entry_list; 1470 1471 #define gfc_get_entry_list() XCNEW (gfc_entry_list) 1472 1473 /* Lists of rename info for the USE statement. */ 1474 1475 typedef struct gfc_use_rename 1476 { 1477 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1]; 1478 struct gfc_use_rename *next; 1479 int found; 1480 gfc_intrinsic_op op; 1481 locus where; 1482 } 1483 gfc_use_rename; 1484 1485 #define gfc_get_use_rename() XCNEW (gfc_use_rename); 1486 1487 /* A list of all USE statements in a namespace. */ 1488 1489 typedef struct gfc_use_list 1490 { 1491 const char *module_name; 1492 bool intrinsic; 1493 bool non_intrinsic; 1494 bool only_flag; 1495 struct gfc_use_rename *rename; 1496 locus where; 1497 /* Next USE statement. */ 1498 struct gfc_use_list *next; 1499 } 1500 gfc_use_list; 1501 1502 #define gfc_get_use_list() XCNEW (gfc_use_list) 1503 1504 /* Within a namespace, symbols are pointed to by symtree nodes that 1505 are linked together in a balanced binary tree. There can be 1506 several symtrees pointing to the same symbol node via USE 1507 statements. */ 1508 1509 typedef struct gfc_symtree 1510 { 1511 BBT_HEADER (gfc_symtree); 1512 const char *name; 1513 int ambiguous; 1514 union 1515 { 1516 gfc_symbol *sym; /* Symbol associated with this node */ 1517 gfc_user_op *uop; 1518 gfc_common_head *common; 1519 gfc_typebound_proc *tb; 1520 gfc_omp_udr *omp_udr; 1521 } 1522 n; 1523 } 1524 gfc_symtree; 1525 1526 /* A linked list of derived types in the namespace. */ 1527 typedef struct gfc_dt_list 1528 { 1529 struct gfc_symbol *derived; 1530 struct gfc_dt_list *next; 1531 } 1532 gfc_dt_list; 1533 1534 #define gfc_get_dt_list() XCNEW (gfc_dt_list) 1535 1536 /* A list of all derived types. */ 1537 extern gfc_dt_list *gfc_derived_types; 1538 1539 /* A namespace describes the contents of procedure, module, interface block 1540 or BLOCK construct. */ 1541 /* ??? Anything else use these? */ 1542 1543 typedef struct gfc_namespace 1544 { 1545 /* Tree containing all the symbols in this namespace. */ 1546 gfc_symtree *sym_root; 1547 /* Tree containing all the user-defined operators in the namespace. */ 1548 gfc_symtree *uop_root; 1549 /* Tree containing all the common blocks. */ 1550 gfc_symtree *common_root; 1551 /* Tree containing all the OpenMP user defined reductions. */ 1552 gfc_symtree *omp_udr_root; 1553 1554 /* Tree containing type-bound procedures. */ 1555 gfc_symtree *tb_sym_root; 1556 /* Type-bound user operators. */ 1557 gfc_symtree *tb_uop_root; 1558 /* For derived-types, store type-bound intrinsic operators here. */ 1559 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS]; 1560 /* Linked list of finalizer procedures. */ 1561 struct gfc_finalizer *finalizers; 1562 1563 /* If set_flag[letter] is set, an implicit type has been set for letter. */ 1564 int set_flag[GFC_LETTERS]; 1565 /* Keeps track of the implicit types associated with the letters. */ 1566 gfc_typespec default_type[GFC_LETTERS]; 1567 /* Store the positions of IMPLICIT statements. */ 1568 locus implicit_loc[GFC_LETTERS]; 1569 1570 /* If this is a namespace of a procedure, this points to the procedure. */ 1571 struct gfc_symbol *proc_name; 1572 /* If this is the namespace of a unit which contains executable 1573 code, this points to it. */ 1574 struct gfc_code *code; 1575 1576 /* Points to the equivalences set up in this namespace. */ 1577 struct gfc_equiv *equiv, *old_equiv; 1578 1579 /* Points to the equivalence groups produced by trans_common. */ 1580 struct gfc_equiv_list *equiv_lists; 1581 1582 gfc_interface *op[GFC_INTRINSIC_OPS]; 1583 1584 /* Points to the parent namespace, i.e. the namespace of a module or 1585 procedure in which the procedure belonging to this namespace is 1586 contained. The parent namespace points to this namespace either 1587 directly via CONTAINED, or indirectly via the chain built by 1588 SIBLING. */ 1589 struct gfc_namespace *parent; 1590 /* CONTAINED points to the first contained namespace. Sibling 1591 namespaces are chained via SIBLING. */ 1592 struct gfc_namespace *contained, *sibling; 1593 1594 gfc_common_head blank_common; 1595 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS]; 1596 1597 gfc_st_label *st_labels; 1598 /* This list holds information about all the data initializers in 1599 this namespace. */ 1600 struct gfc_data *data; 1601 1602 gfc_charlen *cl_list, *old_cl_list; 1603 1604 gfc_dt_list *derived_types; 1605 1606 int save_all, seen_save, seen_implicit_none; 1607 1608 /* Normally we don't need to refcount namespaces. However when we read 1609 a module containing a function with multiple entry points, this 1610 will appear as several functions with the same formal namespace. */ 1611 int refs; 1612 1613 /* A list of all alternate entry points to this procedure (or NULL). */ 1614 gfc_entry_list *entries; 1615 1616 /* A list of USE statements in this namespace. */ 1617 gfc_use_list *use_stmts; 1618 1619 /* Linked list of !$omp declare simd constructs. */ 1620 struct gfc_omp_declare_simd *omp_declare_simd; 1621 1622 /* Set to 1 if namespace is a BLOCK DATA program unit. */ 1623 unsigned is_block_data:1; 1624 1625 /* Set to 1 if namespace is an interface body with "IMPORT" used. */ 1626 unsigned has_import_set:1; 1627 1628 /* Set to 1 if resolved has been called for this namespace. 1629 Holds -1 during resolution. */ 1630 signed resolved:2; 1631 1632 /* Set to 1 if code has been generated for this namespace. */ 1633 unsigned translated:1; 1634 1635 /* Set to 1 if symbols in this namespace should be 'construct entities', 1636 i.e. for BLOCK local variables. */ 1637 unsigned construct_entities:1; 1638 1639 /* Set to 1 for !$OMP DECLARE REDUCTION namespaces. */ 1640 unsigned omp_udr_ns:1; 1641 } 1642 gfc_namespace; 1643 1644 extern gfc_namespace *gfc_current_ns; 1645 extern gfc_namespace *gfc_global_ns_list; 1646 1647 /* Global symbols are symbols of global scope. Currently we only use 1648 this to detect collisions already when parsing. 1649 TODO: Extend to verify procedure calls. */ 1650 1651 enum gfc_symbol_type 1652 { 1653 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE, 1654 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA 1655 }; 1656 1657 typedef struct gfc_gsymbol 1658 { 1659 BBT_HEADER(gfc_gsymbol); 1660 1661 const char *name; 1662 const char *sym_name; 1663 const char *mod_name; 1664 const char *binding_label; 1665 enum gfc_symbol_type type; 1666 1667 int defined, used; 1668 locus where; 1669 gfc_namespace *ns; 1670 } 1671 gfc_gsymbol; 1672 1673 extern gfc_gsymbol *gfc_gsym_root; 1674 1675 /* Information on interfaces being built. */ 1676 typedef struct 1677 { 1678 interface_type type; 1679 gfc_symbol *sym; 1680 gfc_namespace *ns; 1681 gfc_user_op *uop; 1682 gfc_intrinsic_op op; 1683 } 1684 gfc_interface_info; 1685 1686 extern gfc_interface_info current_interface; 1687 1688 1689 /* Array reference. */ 1690 1691 enum gfc_array_ref_dimen_type 1692 { 1693 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_THIS_IMAGE, DIMEN_UNKNOWN 1694 }; 1695 1696 typedef struct gfc_array_ref 1697 { 1698 ar_type type; 1699 int dimen; /* # of components in the reference */ 1700 int codimen; 1701 bool in_allocate; /* For coarray checks. */ 1702 locus where; 1703 gfc_array_spec *as; 1704 1705 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */ 1706 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS], 1707 *stride[GFC_MAX_DIMENSIONS]; 1708 1709 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS]; 1710 } 1711 gfc_array_ref; 1712 1713 #define gfc_get_array_ref() XCNEW (gfc_array_ref) 1714 1715 1716 /* Component reference nodes. A variable is stored as an expression 1717 node that points to the base symbol. After that, a singly linked 1718 list of component reference nodes gives the variable's complete 1719 resolution. The array_ref component may be present and comes 1720 before the component component. */ 1721 1722 typedef enum 1723 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING } 1724 ref_type; 1725 1726 typedef struct gfc_ref 1727 { 1728 ref_type type; 1729 1730 union 1731 { 1732 struct gfc_array_ref ar; 1733 1734 struct 1735 { 1736 gfc_component *component; 1737 gfc_symbol *sym; 1738 } 1739 c; 1740 1741 struct 1742 { 1743 struct gfc_expr *start, *end; /* Substring */ 1744 gfc_charlen *length; 1745 } 1746 ss; 1747 1748 } 1749 u; 1750 1751 struct gfc_ref *next; 1752 } 1753 gfc_ref; 1754 1755 #define gfc_get_ref() XCNEW (gfc_ref) 1756 1757 1758 /* Structures representing intrinsic symbols and their arguments lists. */ 1759 typedef struct gfc_intrinsic_arg 1760 { 1761 char name[GFC_MAX_SYMBOL_LEN + 1]; 1762 1763 gfc_typespec ts; 1764 unsigned optional:1, value:1; 1765 ENUM_BITFIELD (sym_intent) intent:2; 1766 gfc_actual_arglist *actual; 1767 1768 struct gfc_intrinsic_arg *next; 1769 1770 } 1771 gfc_intrinsic_arg; 1772 1773 1774 /* Specifies the various kinds of check functions used to verify the 1775 argument lists of intrinsic functions. fX with X an integer refer 1776 to check functions of intrinsics with X arguments. f1m is used for 1777 the MAX and MIN intrinsics which can have an arbitrary number of 1778 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as 1779 these have special semantics. */ 1780 1781 typedef union 1782 { 1783 bool (*f0)(void); 1784 bool (*f1)(struct gfc_expr *); 1785 bool (*f1m)(gfc_actual_arglist *); 1786 bool (*f2)(struct gfc_expr *, struct gfc_expr *); 1787 bool (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *); 1788 bool (*f3ml)(gfc_actual_arglist *); 1789 bool (*f3red)(gfc_actual_arglist *); 1790 bool (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 1791 struct gfc_expr *); 1792 bool (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 1793 struct gfc_expr *, struct gfc_expr *); 1794 } 1795 gfc_check_f; 1796 1797 /* Like gfc_check_f, these specify the type of the simplification 1798 function associated with an intrinsic. The fX are just like in 1799 gfc_check_f. cc is used for type conversion functions. */ 1800 1801 typedef union 1802 { 1803 struct gfc_expr *(*f0)(void); 1804 struct gfc_expr *(*f1)(struct gfc_expr *); 1805 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *); 1806 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *, 1807 struct gfc_expr *); 1808 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *, 1809 struct gfc_expr *, struct gfc_expr *); 1810 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *, 1811 struct gfc_expr *, struct gfc_expr *, 1812 struct gfc_expr *); 1813 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int); 1814 } 1815 gfc_simplify_f; 1816 1817 /* Again like gfc_check_f, these specify the type of the resolution 1818 function associated with an intrinsic. The fX are just like in 1819 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */ 1820 1821 typedef union 1822 { 1823 void (*f0)(struct gfc_expr *); 1824 void (*f1)(struct gfc_expr *, struct gfc_expr *); 1825 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *); 1826 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *); 1827 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 1828 struct gfc_expr *); 1829 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 1830 struct gfc_expr *, struct gfc_expr *); 1831 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *, 1832 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *); 1833 void (*s1)(struct gfc_code *); 1834 } 1835 gfc_resolve_f; 1836 1837 1838 typedef struct gfc_intrinsic_sym 1839 { 1840 const char *name, *lib_name; 1841 gfc_intrinsic_arg *formal; 1842 gfc_typespec ts; 1843 unsigned elemental:1, inquiry:1, transformational:1, pure:1, 1844 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1, 1845 from_module:1; 1846 1847 int standard; 1848 1849 gfc_simplify_f simplify; 1850 gfc_check_f check; 1851 gfc_resolve_f resolve; 1852 struct gfc_intrinsic_sym *specific_head, *next; 1853 gfc_isym_id id; 1854 1855 } 1856 gfc_intrinsic_sym; 1857 1858 1859 /* Expression nodes. The expression node types deserve explanations, 1860 since the last couple can be easily misconstrued: 1861 1862 EXPR_OP Operator node pointing to one or two other nodes 1863 EXPR_FUNCTION Function call, symbol points to function's name 1864 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex 1865 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list 1866 which expresses structure, array and substring refs. 1867 EXPR_NULL The NULL pointer value (which also has a basic type). 1868 EXPR_SUBSTRING A substring of a constant string 1869 EXPR_STRUCTURE A structure constructor 1870 EXPR_ARRAY An array constructor. 1871 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer 1872 component or type-bound procedure. */ 1873 1874 #include <mpfr.h> 1875 #include <mpc.h> 1876 #define GFC_RND_MODE GMP_RNDN 1877 #define GFC_MPC_RND_MODE MPC_RNDNN 1878 1879 typedef splay_tree gfc_constructor_base; 1880 1881 typedef struct gfc_expr 1882 { 1883 expr_t expr_type; 1884 1885 gfc_typespec ts; /* These two refer to the overall expression */ 1886 1887 int rank; /* 0 indicates a scalar, -1 an assumed-rank array. */ 1888 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */ 1889 1890 /* Nonnull for functions and structure constructors, may also used to hold the 1891 base-object for component calls. */ 1892 gfc_symtree *symtree; 1893 1894 gfc_ref *ref; 1895 1896 locus where; 1897 1898 /* Used to store the base expression in component calls, when the expression 1899 is not a variable. */ 1900 struct gfc_expr *base_expr; 1901 1902 /* is_boz is true if the integer is regarded as BOZ bit pattern and is_snan 1903 denotes a signalling not-a-number. */ 1904 unsigned int is_boz : 1, is_snan : 1; 1905 1906 /* Sometimes, when an error has been emitted, it is necessary to prevent 1907 it from recurring. */ 1908 unsigned int error : 1; 1909 1910 /* Mark an expression where a user operator has been substituted by 1911 a function call in interface.c(gfc_extend_expr). */ 1912 unsigned int user_operator : 1; 1913 1914 /* Mark an expression as being a MOLD argument of ALLOCATE. */ 1915 unsigned int mold : 1; 1916 1917 /* If an expression comes from a Hollerith constant or compile-time 1918 evaluation of a transfer statement, it may have a prescribed target- 1919 memory representation, and these cannot always be backformed from 1920 the value. */ 1921 struct 1922 { 1923 int length; 1924 char *string; 1925 } 1926 representation; 1927 1928 union 1929 { 1930 int logical; 1931 1932 io_kind iokind; 1933 1934 mpz_t integer; 1935 1936 mpfr_t real; 1937 1938 mpc_t complex; 1939 1940 struct 1941 { 1942 gfc_intrinsic_op op; 1943 gfc_user_op *uop; 1944 struct gfc_expr *op1, *op2; 1945 } 1946 op; 1947 1948 struct 1949 { 1950 gfc_actual_arglist *actual; 1951 const char *name; /* Points to the ultimate name of the function */ 1952 gfc_intrinsic_sym *isym; 1953 gfc_symbol *esym; 1954 } 1955 function; 1956 1957 struct 1958 { 1959 gfc_actual_arglist* actual; 1960 const char* name; 1961 /* Base-object, whose component was called. NULL means that it should 1962 be taken from symtree/ref. */ 1963 struct gfc_expr* base_object; 1964 gfc_typebound_proc* tbp; /* Should overlap with esym. */ 1965 1966 /* For type-bound operators, we want to call PASS procedures but already 1967 have the full arglist; mark this, so that it is not extended by the 1968 PASS argument. */ 1969 unsigned ignore_pass:1; 1970 1971 /* Do assign-calls rather than calls, that is appropriate dependency 1972 checking. */ 1973 unsigned assign:1; 1974 } 1975 compcall; 1976 1977 struct 1978 { 1979 int length; 1980 gfc_char_t *string; 1981 } 1982 character; 1983 1984 gfc_constructor_base constructor; 1985 } 1986 value; 1987 1988 } 1989 gfc_expr; 1990 1991 1992 #define gfc_get_shape(rank) (XCNEWVEC (mpz_t, (rank))) 1993 1994 /* Structures for information associated with different kinds of 1995 numbers. The first set of integer parameters define all there is 1996 to know about a particular kind. The rest of the elements are 1997 computed from the first elements. */ 1998 1999 typedef struct 2000 { 2001 /* Values really representable by the target. */ 2002 mpz_t huge, pedantic_min_int, min_int; 2003 2004 int kind, radix, digits, bit_size, range; 2005 2006 /* True if the C type of the given name maps to this precision. 2007 Note that more than one bit can be set. */ 2008 unsigned int c_char : 1; 2009 unsigned int c_short : 1; 2010 unsigned int c_int : 1; 2011 unsigned int c_long : 1; 2012 unsigned int c_long_long : 1; 2013 } 2014 gfc_integer_info; 2015 2016 extern gfc_integer_info gfc_integer_kinds[]; 2017 2018 2019 typedef struct 2020 { 2021 int kind, bit_size; 2022 2023 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */ 2024 unsigned int c_bool : 1; 2025 } 2026 gfc_logical_info; 2027 2028 extern gfc_logical_info gfc_logical_kinds[]; 2029 2030 2031 typedef struct 2032 { 2033 mpfr_t epsilon, huge, tiny, subnormal; 2034 int kind, radix, digits, min_exponent, max_exponent; 2035 int range, precision; 2036 2037 /* The precision of the type as reported by GET_MODE_PRECISION. */ 2038 int mode_precision; 2039 2040 /* True if the C type of the given name maps to this precision. 2041 Note that more than one bit can be set. */ 2042 unsigned int c_float : 1; 2043 unsigned int c_double : 1; 2044 unsigned int c_long_double : 1; 2045 unsigned int c_float128 : 1; 2046 } 2047 gfc_real_info; 2048 2049 extern gfc_real_info gfc_real_kinds[]; 2050 2051 typedef struct 2052 { 2053 int kind, bit_size; 2054 const char *name; 2055 } 2056 gfc_character_info; 2057 2058 extern gfc_character_info gfc_character_kinds[]; 2059 2060 2061 /* Equivalence structures. Equivalent lvalues are linked along the 2062 *eq pointer, equivalence sets are strung along the *next node. */ 2063 typedef struct gfc_equiv 2064 { 2065 struct gfc_equiv *next, *eq; 2066 gfc_expr *expr; 2067 const char *module; 2068 int used; 2069 } 2070 gfc_equiv; 2071 2072 #define gfc_get_equiv() XCNEW (gfc_equiv) 2073 2074 /* Holds a single equivalence member after processing. */ 2075 typedef struct gfc_equiv_info 2076 { 2077 gfc_symbol *sym; 2078 HOST_WIDE_INT offset; 2079 HOST_WIDE_INT length; 2080 struct gfc_equiv_info *next; 2081 } gfc_equiv_info; 2082 2083 /* Holds equivalence groups, after they have been processed. */ 2084 typedef struct gfc_equiv_list 2085 { 2086 gfc_equiv_info *equiv; 2087 struct gfc_equiv_list *next; 2088 } gfc_equiv_list; 2089 2090 /* gfc_case stores the selector list of a case statement. The *low 2091 and *high pointers can point to the same expression in the case of 2092 a single value. If *high is NULL, the selection is from *low 2093 upwards, if *low is NULL the selection is *high downwards. 2094 2095 This structure has separate fields to allow single and double linked 2096 lists of CASEs at the same time. The singe linked list along the NEXT 2097 field is a list of cases for a single CASE label. The double linked 2098 list along the LEFT/RIGHT fields is used to detect overlap and to 2099 build a table of the cases for SELECT constructs with a CHARACTER 2100 case expression. */ 2101 2102 typedef struct gfc_case 2103 { 2104 /* Where we saw this case. */ 2105 locus where; 2106 int n; 2107 2108 /* Case range values. If (low == high), it's a single value. If one of 2109 the labels is NULL, it's an unbounded case. If both are NULL, this 2110 represents the default case. */ 2111 gfc_expr *low, *high; 2112 2113 /* Only used for SELECT TYPE. */ 2114 gfc_typespec ts; 2115 2116 /* Next case label in the list of cases for a single CASE label. */ 2117 struct gfc_case *next; 2118 2119 /* Used for detecting overlap, and for code generation. */ 2120 struct gfc_case *left, *right; 2121 2122 /* True if this case label can never be matched. */ 2123 int unreachable; 2124 } 2125 gfc_case; 2126 2127 #define gfc_get_case() XCNEW (gfc_case) 2128 2129 2130 typedef struct 2131 { 2132 gfc_expr *var, *start, *end, *step; 2133 } 2134 gfc_iterator; 2135 2136 #define gfc_get_iterator() XCNEW (gfc_iterator) 2137 2138 2139 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */ 2140 2141 typedef struct gfc_alloc 2142 { 2143 gfc_expr *expr; 2144 struct gfc_alloc *next; 2145 } 2146 gfc_alloc; 2147 2148 #define gfc_get_alloc() XCNEW (gfc_alloc) 2149 2150 2151 typedef struct 2152 { 2153 gfc_expr *unit, *file, *status, *access, *form, *recl, 2154 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert, 2155 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit; 2156 gfc_st_label *err; 2157 } 2158 gfc_open; 2159 2160 2161 typedef struct 2162 { 2163 gfc_expr *unit, *status, *iostat, *iomsg; 2164 gfc_st_label *err; 2165 } 2166 gfc_close; 2167 2168 2169 typedef struct 2170 { 2171 gfc_expr *unit, *iostat, *iomsg; 2172 gfc_st_label *err; 2173 } 2174 gfc_filepos; 2175 2176 2177 typedef struct 2178 { 2179 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named, 2180 *name, *access, *sequential, *direct, *form, *formatted, 2181 *unformatted, *recl, *nextrec, *blank, *position, *action, *read, 2182 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos, 2183 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id, 2184 *iqstream; 2185 2186 gfc_st_label *err; 2187 2188 } 2189 gfc_inquire; 2190 2191 2192 typedef struct 2193 { 2194 gfc_expr *unit, *iostat, *iomsg, *id; 2195 gfc_st_label *err, *end, *eor; 2196 } 2197 gfc_wait; 2198 2199 2200 typedef struct 2201 { 2202 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg, 2203 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round, 2204 *sign, *extra_comma, *dt_io_kind; 2205 2206 gfc_symbol *namelist; 2207 /* A format_label of `format_asterisk' indicates the "*" format */ 2208 gfc_st_label *format_label; 2209 gfc_st_label *err, *end, *eor; 2210 2211 locus eor_where, end_where, err_where; 2212 } 2213 gfc_dt; 2214 2215 2216 typedef struct gfc_forall_iterator 2217 { 2218 gfc_expr *var, *start, *end, *stride; 2219 struct gfc_forall_iterator *next; 2220 } 2221 gfc_forall_iterator; 2222 2223 2224 /* Linked list to store associations in an ASSOCIATE statement. */ 2225 2226 typedef struct gfc_association_list 2227 { 2228 struct gfc_association_list *next; 2229 2230 /* Whether this is association to a variable that can be changed; otherwise, 2231 it's association to an expression and the name may not be used as 2232 lvalue. */ 2233 unsigned variable:1; 2234 2235 /* True if this struct is currently only linked to from a gfc_symbol rather 2236 than as part of a real list in gfc_code->ext.block.assoc. This may 2237 happen for SELECT TYPE temporaries and must be considered 2238 for memory handling. */ 2239 unsigned dangling:1; 2240 2241 char name[GFC_MAX_SYMBOL_LEN + 1]; 2242 gfc_symtree *st; /* Symtree corresponding to name. */ 2243 locus where; 2244 2245 gfc_expr *target; 2246 } 2247 gfc_association_list; 2248 #define gfc_get_association_list() XCNEW (gfc_association_list) 2249 2250 2251 /* Executable statements that fill gfc_code structures. */ 2252 typedef enum 2253 { 2254 EXEC_NOP = 1, EXEC_END_NESTED_BLOCK, EXEC_END_BLOCK, EXEC_ASSIGN, 2255 EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP, 2256 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN, 2257 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN, 2258 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_CONCURRENT, EXEC_DO_WHILE, 2259 EXEC_SELECT, EXEC_BLOCK, EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT, 2260 EXEC_CALL_PPC, EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE, 2261 EXEC_SELECT_TYPE, EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES, 2262 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT, 2263 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END, 2264 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH, 2265 EXEC_LOCK, EXEC_UNLOCK, 2266 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER, 2267 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO, 2268 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE, 2269 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE, 2270 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT, 2271 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT, 2272 EXEC_OMP_TASKYIELD, EXEC_OMP_CANCEL, EXEC_OMP_CANCELLATION_POINT, 2273 EXEC_OMP_TASKGROUP, EXEC_OMP_SIMD, EXEC_OMP_DO_SIMD, 2274 EXEC_OMP_PARALLEL_DO_SIMD, EXEC_OMP_TARGET, EXEC_OMP_TARGET_DATA, 2275 EXEC_OMP_TEAMS, EXEC_OMP_DISTRIBUTE, EXEC_OMP_DISTRIBUTE_SIMD, 2276 EXEC_OMP_DISTRIBUTE_PARALLEL_DO, EXEC_OMP_DISTRIBUTE_PARALLEL_DO_SIMD, 2277 EXEC_OMP_TARGET_TEAMS, EXEC_OMP_TEAMS_DISTRIBUTE, 2278 EXEC_OMP_TEAMS_DISTRIBUTE_SIMD, EXEC_OMP_TARGET_TEAMS_DISTRIBUTE, 2279 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD, 2280 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO, 2281 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO, 2282 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 2283 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD, 2284 EXEC_OMP_TARGET_UPDATE 2285 } 2286 gfc_exec_op; 2287 2288 typedef enum 2289 { 2290 GFC_OMP_ATOMIC_UPDATE = 0, 2291 GFC_OMP_ATOMIC_READ = 1, 2292 GFC_OMP_ATOMIC_WRITE = 2, 2293 GFC_OMP_ATOMIC_CAPTURE = 3, 2294 GFC_OMP_ATOMIC_MASK = 3, 2295 GFC_OMP_ATOMIC_SEQ_CST = 4, 2296 GFC_OMP_ATOMIC_SWAP = 8 2297 } 2298 gfc_omp_atomic_op; 2299 2300 typedef struct gfc_code 2301 { 2302 gfc_exec_op op; 2303 2304 struct gfc_code *block, *next; 2305 locus loc; 2306 2307 gfc_st_label *here, *label1, *label2, *label3; 2308 gfc_symtree *symtree; 2309 gfc_expr *expr1, *expr2, *expr3, *expr4; 2310 /* A name isn't sufficient to identify a subroutine, we need the actual 2311 symbol for the interface definition. 2312 const char *sub_name; */ 2313 gfc_symbol *resolved_sym; 2314 gfc_intrinsic_sym *resolved_isym; 2315 2316 union 2317 { 2318 gfc_actual_arglist *actual; 2319 gfc_iterator *iterator; 2320 2321 struct 2322 { 2323 gfc_typespec ts; 2324 gfc_alloc *list; 2325 } 2326 alloc; 2327 2328 struct 2329 { 2330 gfc_namespace *ns; 2331 gfc_association_list *assoc; 2332 gfc_case *case_list; 2333 } 2334 block; 2335 2336 gfc_open *open; 2337 gfc_close *close; 2338 gfc_filepos *filepos; 2339 gfc_inquire *inquire; 2340 gfc_wait *wait; 2341 gfc_dt *dt; 2342 gfc_forall_iterator *forall_iterator; 2343 struct gfc_code *which_construct; 2344 int stop_code; 2345 gfc_entry_list *entry; 2346 gfc_omp_clauses *omp_clauses; 2347 const char *omp_name; 2348 gfc_omp_namelist *omp_namelist; 2349 bool omp_bool; 2350 gfc_omp_atomic_op omp_atomic; 2351 } 2352 ext; /* Points to additional structures required by statement */ 2353 2354 /* Cycle and break labels in constructs. */ 2355 tree cycle_label; 2356 tree exit_label; 2357 } 2358 gfc_code; 2359 2360 2361 /* Storage for DATA statements. */ 2362 typedef struct gfc_data_variable 2363 { 2364 gfc_expr *expr; 2365 gfc_iterator iter; 2366 struct gfc_data_variable *list, *next; 2367 } 2368 gfc_data_variable; 2369 2370 2371 typedef struct gfc_data_value 2372 { 2373 mpz_t repeat; 2374 gfc_expr *expr; 2375 struct gfc_data_value *next; 2376 } 2377 gfc_data_value; 2378 2379 2380 typedef struct gfc_data 2381 { 2382 gfc_data_variable *var; 2383 gfc_data_value *value; 2384 locus where; 2385 2386 struct gfc_data *next; 2387 } 2388 gfc_data; 2389 2390 2391 /* Structure for holding compile options */ 2392 typedef struct 2393 { 2394 char *module_dir; 2395 gfc_source_form source_form; 2396 /* Maximum line lengths in fixed- and free-form source, respectively. 2397 When fixed_line_length or free_line_length are 0, the whole line is used, 2398 regardless of length. 2399 2400 If the user requests a fixed_line_length <7 then gfc_init_options() 2401 emits a fatal error. */ 2402 int fixed_line_length; 2403 int free_line_length; 2404 /* Maximum number of continuation lines in fixed- and free-form source, 2405 respectively. */ 2406 int max_continue_fixed; 2407 int max_continue_free; 2408 int max_identifier_length; 2409 int dump_fortran_original; 2410 int dump_fortran_optimized; 2411 2412 int warn_aliasing; 2413 int warn_ampersand; 2414 int gfc_warn_conversion; 2415 int warn_c_binding_type; 2416 int warn_conversion_extra; 2417 int warn_function_elimination; 2418 int warn_implicit_interface; 2419 int warn_implicit_procedure; 2420 int warn_line_truncation; 2421 int warn_surprising; 2422 int warn_tabs; 2423 int warn_underflow; 2424 int warn_intrinsic_shadow; 2425 int warn_intrinsics_std; 2426 int warn_character_truncation; 2427 int warn_array_temp; 2428 int warn_align_commons; 2429 int warn_real_q_constant; 2430 int warn_unused_dummy_argument; 2431 int warn_zerotrip; 2432 int warn_realloc_lhs; 2433 int warn_realloc_lhs_all; 2434 int warn_compare_reals; 2435 int warn_target_lifetime; 2436 int max_errors; 2437 2438 int flag_all_intrinsics; 2439 int flag_default_double; 2440 int flag_default_integer; 2441 int flag_default_real; 2442 int flag_integer4_kind; 2443 int flag_real4_kind; 2444 int flag_real8_kind; 2445 int flag_dollar_ok; 2446 int flag_underscoring; 2447 int flag_second_underscore; 2448 int flag_implicit_none; 2449 int flag_max_stack_var_size; 2450 int flag_max_array_constructor; 2451 int flag_range_check; 2452 int flag_pack_derived; 2453 int flag_repack_arrays; 2454 int flag_preprocessed; 2455 int flag_f2c; 2456 int flag_automatic; 2457 int flag_backslash; 2458 int flag_backtrace; 2459 int flag_allow_leading_underscore; 2460 int flag_external_blas; 2461 int blas_matmul_limit; 2462 int flag_cray_pointer; 2463 int flag_d_lines; 2464 int gfc_flag_openmp; 2465 int gfc_flag_openmp_simd; 2466 int flag_sign_zero; 2467 int flag_stack_arrays; 2468 int flag_module_private; 2469 int flag_recursive; 2470 int flag_init_local_zero; 2471 int flag_init_integer; 2472 int flag_init_integer_value; 2473 int flag_init_real; 2474 int flag_init_logical; 2475 int flag_init_character; 2476 char flag_init_character_value; 2477 int flag_align_commons; 2478 int flag_protect_parens; 2479 int flag_realloc_lhs; 2480 int flag_aggressive_function_elimination; 2481 int flag_frontend_optimize; 2482 2483 int fpe; 2484 int fpe_summary; 2485 int rtcheck; 2486 gfc_fcoarray coarray; 2487 2488 int warn_std; 2489 int allow_std; 2490 int convert; 2491 int record_marker; 2492 int max_subrecord_length; 2493 } 2494 gfc_option_t; 2495 2496 extern gfc_option_t gfc_option; 2497 2498 /* Constructor nodes for array and structure constructors. */ 2499 typedef struct gfc_constructor 2500 { 2501 gfc_constructor_base base; 2502 mpz_t offset; /* Offset within a constructor, used as 2503 key within base. */ 2504 2505 gfc_expr *expr; 2506 gfc_iterator *iterator; 2507 locus where; 2508 2509 union 2510 { 2511 gfc_component *component; /* Record the component being initialized. */ 2512 } 2513 n; 2514 mpz_t repeat; /* Record the repeat number of initial values in data 2515 statement like "data a/5*10/". */ 2516 } 2517 gfc_constructor; 2518 2519 2520 typedef struct iterator_stack 2521 { 2522 gfc_symtree *variable; 2523 mpz_t value; 2524 struct iterator_stack *prev; 2525 } 2526 iterator_stack; 2527 extern iterator_stack *iter_stack; 2528 2529 2530 /* Used for (possibly nested) SELECT TYPE statements. */ 2531 typedef struct gfc_select_type_stack 2532 { 2533 gfc_symbol *selector; /* Current selector variable. */ 2534 gfc_symtree *tmp; /* Current temporary variable. */ 2535 struct gfc_select_type_stack *prev; /* Previous element on stack. */ 2536 } 2537 gfc_select_type_stack; 2538 extern gfc_select_type_stack *select_type_stack; 2539 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack) 2540 2541 2542 /* Node in the linked list used for storing finalizer procedures. */ 2543 2544 typedef struct gfc_finalizer 2545 { 2546 struct gfc_finalizer* next; 2547 locus where; /* Where the FINAL declaration occurred. */ 2548 2549 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding 2550 symtree and later need only that. This way, we can access and call the 2551 finalizers from every context as they should be "always accessible". I 2552 don't make this a union because we need the information whether proc_sym is 2553 still referenced or not for dereferencing it on deleting a gfc_finalizer 2554 structure. */ 2555 gfc_symbol* proc_sym; 2556 gfc_symtree* proc_tree; 2557 } 2558 gfc_finalizer; 2559 #define gfc_get_finalizer() XCNEW (gfc_finalizer) 2560 2561 2562 /************************ Function prototypes *************************/ 2563 2564 /* decl.c */ 2565 bool gfc_in_match_data (void); 2566 match gfc_match_char_spec (gfc_typespec *); 2567 2568 /* scanner.c */ 2569 void gfc_scanner_done_1 (void); 2570 void gfc_scanner_init_1 (void); 2571 2572 void gfc_add_include_path (const char *, bool, bool, bool); 2573 void gfc_add_intrinsic_modules_path (const char *); 2574 void gfc_release_include_path (void); 2575 FILE *gfc_open_included_file (const char *, bool, bool); 2576 2577 int gfc_at_end (void); 2578 int gfc_at_eof (void); 2579 int gfc_at_bol (void); 2580 int gfc_at_eol (void); 2581 void gfc_advance_line (void); 2582 int gfc_check_include (void); 2583 int gfc_define_undef_line (void); 2584 2585 int gfc_wide_is_printable (gfc_char_t); 2586 int gfc_wide_is_digit (gfc_char_t); 2587 int gfc_wide_fits_in_byte (gfc_char_t); 2588 gfc_char_t gfc_wide_tolower (gfc_char_t); 2589 gfc_char_t gfc_wide_toupper (gfc_char_t); 2590 size_t gfc_wide_strlen (const gfc_char_t *); 2591 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t); 2592 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t); 2593 char *gfc_widechar_to_char (const gfc_char_t *, int); 2594 gfc_char_t *gfc_char_to_widechar (const char *); 2595 2596 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n) 2597 2598 void gfc_skip_comments (void); 2599 gfc_char_t gfc_next_char_literal (gfc_instring); 2600 gfc_char_t gfc_next_char (void); 2601 char gfc_next_ascii_char (void); 2602 gfc_char_t gfc_peek_char (void); 2603 char gfc_peek_ascii_char (void); 2604 void gfc_error_recovery (void); 2605 void gfc_gobble_whitespace (void); 2606 bool gfc_new_file (void); 2607 const char * gfc_read_orig_filename (const char *, const char **); 2608 2609 extern gfc_source_form gfc_current_form; 2610 extern const char *gfc_source_file; 2611 extern locus gfc_current_locus; 2612 2613 void gfc_start_source_files (void); 2614 void gfc_end_source_files (void); 2615 2616 /* misc.c */ 2617 void gfc_clear_ts (gfc_typespec *); 2618 FILE *gfc_open_file (const char *); 2619 const char *gfc_basic_typename (bt); 2620 const char *gfc_typename (gfc_typespec *); 2621 const char *gfc_op2string (gfc_intrinsic_op); 2622 const char *gfc_code2string (const mstring *, int); 2623 int gfc_string2code (const mstring *, const char *); 2624 const char *gfc_intent_string (sym_intent); 2625 2626 void gfc_init_1 (void); 2627 void gfc_init_2 (void); 2628 void gfc_done_1 (void); 2629 void gfc_done_2 (void); 2630 2631 int get_c_kind (const char *, CInteropKind_t *); 2632 2633 /* options.c */ 2634 unsigned int gfc_option_lang_mask (void); 2635 void gfc_init_options_struct (struct gcc_options *); 2636 void gfc_init_options (unsigned int, 2637 struct cl_decoded_option *); 2638 bool gfc_handle_option (size_t, const char *, int, int, location_t, 2639 const struct cl_option_handlers *); 2640 bool gfc_post_options (const char **); 2641 char *gfc_get_option_string (void); 2642 2643 /* f95-lang.c */ 2644 void gfc_maybe_initialize_eh (void); 2645 2646 /* iresolve.c */ 2647 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1; 2648 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *); 2649 2650 /* error.c */ 2651 2652 typedef struct gfc_error_buf 2653 { 2654 int flag; 2655 size_t allocated, index; 2656 char *message; 2657 } gfc_error_buf; 2658 2659 void gfc_error_init_1 (void); 2660 void gfc_buffer_error (int); 2661 2662 const char *gfc_print_wide_char (gfc_char_t); 2663 2664 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2); 2665 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2); 2666 void gfc_clear_warning (void); 2667 void gfc_warning_check (void); 2668 2669 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2); 2670 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2); 2671 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2); 2672 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2); 2673 void gfc_clear_error (void); 2674 int gfc_error_check (void); 2675 int gfc_error_flag_test (void); 2676 2677 notification gfc_notification_std (int); 2678 bool gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3); 2679 2680 /* A general purpose syntax error. */ 2681 #define gfc_syntax_error(ST) \ 2682 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST)); 2683 2684 void gfc_push_error (gfc_error_buf *); 2685 void gfc_pop_error (gfc_error_buf *); 2686 void gfc_free_error (gfc_error_buf *); 2687 2688 void gfc_get_errors (int *, int *); 2689 void gfc_errors_to_warnings (int); 2690 2691 /* arith.c */ 2692 void gfc_arith_init_1 (void); 2693 void gfc_arith_done_1 (void); 2694 arith gfc_check_integer_range (mpz_t p, int kind); 2695 bool gfc_check_character_range (gfc_char_t, int); 2696 2697 /* trans-types.c */ 2698 bool gfc_check_any_c_kind (gfc_typespec *); 2699 int gfc_validate_kind (bt, int, bool); 2700 int gfc_get_int_kind_from_width_isofortranenv (int size); 2701 int gfc_get_real_kind_from_width_isofortranenv (int size); 2702 tree gfc_get_derived_type (gfc_symbol * derived); 2703 extern int gfc_index_integer_kind; 2704 extern int gfc_default_integer_kind; 2705 extern int gfc_max_integer_kind; 2706 extern int gfc_default_real_kind; 2707 extern int gfc_default_double_kind; 2708 extern int gfc_default_character_kind; 2709 extern int gfc_default_logical_kind; 2710 extern int gfc_default_complex_kind; 2711 extern int gfc_c_int_kind; 2712 extern int gfc_atomic_int_kind; 2713 extern int gfc_atomic_logical_kind; 2714 extern int gfc_intio_kind; 2715 extern int gfc_charlen_int_kind; 2716 extern int gfc_numeric_storage_size; 2717 extern int gfc_character_storage_size; 2718 2719 /* symbol.c */ 2720 void gfc_clear_new_implicit (void); 2721 bool gfc_add_new_implicit_range (int, int); 2722 bool gfc_merge_new_implicit (gfc_typespec *); 2723 void gfc_set_implicit_none (void); 2724 void gfc_check_function_type (gfc_namespace *); 2725 bool gfc_is_intrinsic_typename (const char *); 2726 2727 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *); 2728 bool gfc_set_default_type (gfc_symbol *, int, gfc_namespace *); 2729 2730 void gfc_set_sym_referenced (gfc_symbol *); 2731 2732 bool gfc_add_attribute (symbol_attribute *, locus *); 2733 bool gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *); 2734 bool gfc_add_allocatable (symbol_attribute *, locus *); 2735 bool gfc_add_codimension (symbol_attribute *, const char *, locus *); 2736 bool gfc_add_contiguous (symbol_attribute *, const char *, locus *); 2737 bool gfc_add_dimension (symbol_attribute *, const char *, locus *); 2738 bool gfc_add_external (symbol_attribute *, locus *); 2739 bool gfc_add_intrinsic (symbol_attribute *, locus *); 2740 bool gfc_add_optional (symbol_attribute *, locus *); 2741 bool gfc_add_pointer (symbol_attribute *, locus *); 2742 bool gfc_add_cray_pointer (symbol_attribute *, locus *); 2743 bool gfc_add_cray_pointee (symbol_attribute *, locus *); 2744 match gfc_mod_pointee_as (gfc_array_spec *); 2745 bool gfc_add_protected (symbol_attribute *, const char *, locus *); 2746 bool gfc_add_result (symbol_attribute *, const char *, locus *); 2747 bool gfc_add_save (symbol_attribute *, save_state, const char *, locus *); 2748 bool gfc_add_threadprivate (symbol_attribute *, const char *, locus *); 2749 bool gfc_add_omp_declare_target (symbol_attribute *, const char *, locus *); 2750 bool gfc_add_saved_common (symbol_attribute *, locus *); 2751 bool gfc_add_target (symbol_attribute *, locus *); 2752 bool gfc_add_dummy (symbol_attribute *, const char *, locus *); 2753 bool gfc_add_generic (symbol_attribute *, const char *, locus *); 2754 bool gfc_add_common (symbol_attribute *, locus *); 2755 bool gfc_add_in_common (symbol_attribute *, const char *, locus *); 2756 bool gfc_add_in_equivalence (symbol_attribute *, const char *, locus *); 2757 bool gfc_add_data (symbol_attribute *, const char *, locus *); 2758 bool gfc_add_in_namelist (symbol_attribute *, const char *, locus *); 2759 bool gfc_add_sequence (symbol_attribute *, const char *, locus *); 2760 bool gfc_add_elemental (symbol_attribute *, locus *); 2761 bool gfc_add_pure (symbol_attribute *, locus *); 2762 bool gfc_add_recursive (symbol_attribute *, locus *); 2763 bool gfc_add_function (symbol_attribute *, const char *, locus *); 2764 bool gfc_add_subroutine (symbol_attribute *, const char *, locus *); 2765 bool gfc_add_volatile (symbol_attribute *, const char *, locus *); 2766 bool gfc_add_asynchronous (symbol_attribute *, const char *, locus *); 2767 bool gfc_add_proc (symbol_attribute *attr, const char *name, locus *where); 2768 bool gfc_add_abstract (symbol_attribute* attr, locus* where); 2769 2770 bool gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *); 2771 bool gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int); 2772 bool gfc_add_extension (symbol_attribute *, locus *); 2773 bool gfc_add_value (symbol_attribute *, const char *, locus *); 2774 bool gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *); 2775 bool gfc_add_entry (symbol_attribute *, const char *, locus *); 2776 bool gfc_add_procedure (symbol_attribute *, procedure_type, 2777 const char *, locus *); 2778 bool gfc_add_intent (symbol_attribute *, sym_intent, locus *); 2779 bool gfc_add_explicit_interface (gfc_symbol *, ifsrc, 2780 gfc_formal_arglist *, locus *); 2781 bool gfc_add_type (gfc_symbol *, gfc_typespec *, locus *); 2782 2783 void gfc_clear_attr (symbol_attribute *); 2784 bool gfc_missing_attr (symbol_attribute *, locus *); 2785 bool gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *); 2786 2787 bool gfc_add_component (gfc_symbol *, const char *, gfc_component **); 2788 gfc_symbol *gfc_use_derived (gfc_symbol *); 2789 gfc_symtree *gfc_use_derived_tree (gfc_symtree *); 2790 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool); 2791 2792 gfc_st_label *gfc_get_st_label (int); 2793 void gfc_free_st_label (gfc_st_label *); 2794 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *); 2795 bool gfc_reference_st_label (gfc_st_label *, gfc_sl_type); 2796 2797 gfc_namespace *gfc_get_namespace (gfc_namespace *, int); 2798 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *); 2799 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *); 2800 void gfc_delete_symtree (gfc_symtree **, const char *); 2801 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *); 2802 gfc_user_op *gfc_get_uop (const char *); 2803 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *); 2804 void gfc_free_symbol (gfc_symbol *); 2805 void gfc_release_symbol (gfc_symbol *); 2806 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *); 2807 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *); 2808 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **); 2809 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **); 2810 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **); 2811 bool gfc_verify_c_interop (gfc_typespec *); 2812 bool gfc_verify_c_interop_param (gfc_symbol *); 2813 bool verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *); 2814 bool verify_bind_c_derived_type (gfc_symbol *); 2815 bool verify_com_block_vars_c_interop (gfc_common_head *); 2816 gfc_symtree *generate_isocbinding_symbol (const char *, iso_c_binding_symbol, 2817 const char *, gfc_symtree *, bool); 2818 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool); 2819 int gfc_get_ha_symbol (const char *, gfc_symbol **); 2820 int gfc_get_ha_sym_tree (const char *, gfc_symtree **); 2821 2822 void gfc_new_undo_checkpoint (gfc_undo_change_set &); 2823 void gfc_drop_last_undo_checkpoint (void); 2824 void gfc_restore_last_undo_checkpoint (void); 2825 void gfc_undo_symbols (void); 2826 void gfc_commit_symbols (void); 2827 void gfc_commit_symbol (gfc_symbol *); 2828 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *); 2829 void gfc_free_charlen (gfc_charlen *, gfc_charlen *); 2830 void gfc_free_namespace (gfc_namespace *); 2831 2832 void gfc_symbol_init_2 (void); 2833 void gfc_symbol_done_2 (void); 2834 2835 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *)); 2836 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *)); 2837 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *)); 2838 void gfc_save_all (gfc_namespace *); 2839 2840 void gfc_enforce_clean_symbol_state (void); 2841 void gfc_free_dt_list (void); 2842 2843 2844 gfc_gsymbol *gfc_get_gsymbol (const char *); 2845 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *); 2846 2847 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*); 2848 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*); 2849 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*); 2850 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *); 2851 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *); 2852 2853 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *); 2854 2855 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */ 2856 2857 bool gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus); 2858 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*); 2859 2860 bool gfc_is_associate_pointer (gfc_symbol*); 2861 gfc_symbol * gfc_find_dt_in_generic (gfc_symbol *); 2862 gfc_formal_arglist *gfc_sym_get_dummy_args (gfc_symbol *); 2863 2864 /* intrinsic.c -- true if working in an init-expr, false otherwise. */ 2865 extern bool gfc_init_expr_flag; 2866 2867 /* Given a symbol that we have decided is intrinsic, mark it as such 2868 by placing it into a special module that is otherwise impossible to 2869 read or write. */ 2870 2871 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)") 2872 2873 void gfc_intrinsic_init_1 (void); 2874 void gfc_intrinsic_done_1 (void); 2875 2876 char gfc_type_letter (bt); 2877 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *); 2878 bool gfc_convert_type (gfc_expr *, gfc_typespec *, int); 2879 bool gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int); 2880 bool gfc_convert_chartype (gfc_expr *, gfc_typespec *); 2881 int gfc_generic_intrinsic (const char *); 2882 int gfc_specific_intrinsic (const char *); 2883 bool gfc_is_intrinsic (gfc_symbol*, int, locus); 2884 int gfc_intrinsic_actual_ok (const char *, const bool); 2885 gfc_intrinsic_sym *gfc_find_function (const char *); 2886 gfc_intrinsic_sym *gfc_find_subroutine (const char *); 2887 gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id); 2888 gfc_intrinsic_sym *gfc_intrinsic_subroutine_by_id (gfc_isym_id); 2889 gfc_isym_id gfc_isym_id_by_intmod (intmod_id, int); 2890 gfc_isym_id gfc_isym_id_by_intmod_sym (gfc_symbol *); 2891 2892 2893 match gfc_intrinsic_func_interface (gfc_expr *, int); 2894 match gfc_intrinsic_sub_interface (gfc_code *, int); 2895 2896 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool); 2897 bool gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**, 2898 bool, locus); 2899 2900 /* match.c -- FIXME */ 2901 void gfc_free_iterator (gfc_iterator *, int); 2902 void gfc_free_forall_iterator (gfc_forall_iterator *); 2903 void gfc_free_alloc_list (gfc_alloc *); 2904 void gfc_free_namelist (gfc_namelist *); 2905 void gfc_free_omp_namelist (gfc_omp_namelist *); 2906 void gfc_free_equiv (gfc_equiv *); 2907 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *); 2908 void gfc_free_data (gfc_data *); 2909 void gfc_free_case_list (gfc_case *); 2910 2911 /* matchexp.c -- FIXME too? */ 2912 gfc_expr *gfc_get_parentheses (gfc_expr *); 2913 2914 /* openmp.c */ 2915 struct gfc_omp_saved_state { void *ptrs[2]; int ints[1]; }; 2916 void gfc_free_omp_clauses (gfc_omp_clauses *); 2917 void gfc_free_omp_declare_simd (gfc_omp_declare_simd *); 2918 void gfc_free_omp_declare_simd_list (gfc_omp_declare_simd *); 2919 void gfc_free_omp_udr (gfc_omp_udr *); 2920 gfc_omp_udr *gfc_omp_udr_find (gfc_symtree *, gfc_typespec *); 2921 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *); 2922 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *); 2923 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *); 2924 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *); 2925 void gfc_resolve_omp_declare_simd (gfc_namespace *); 2926 void gfc_resolve_omp_udrs (gfc_symtree *); 2927 void gfc_omp_save_and_clear_state (struct gfc_omp_saved_state *); 2928 void gfc_omp_restore_state (struct gfc_omp_saved_state *); 2929 2930 /* expr.c */ 2931 void gfc_free_actual_arglist (gfc_actual_arglist *); 2932 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *); 2933 const char *gfc_extract_int (gfc_expr *, int *); 2934 bool is_subref_array (gfc_expr *); 2935 bool gfc_is_simply_contiguous (gfc_expr *, bool); 2936 bool gfc_check_init_expr (gfc_expr *); 2937 2938 gfc_expr *gfc_build_conversion (gfc_expr *); 2939 void gfc_free_ref_list (gfc_ref *); 2940 void gfc_type_convert_binary (gfc_expr *, int); 2941 int gfc_is_constant_expr (gfc_expr *); 2942 bool gfc_simplify_expr (gfc_expr *, int); 2943 int gfc_has_vector_index (gfc_expr *); 2944 2945 gfc_expr *gfc_get_expr (void); 2946 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *); 2947 gfc_expr *gfc_get_null_expr (locus *); 2948 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *); 2949 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *); 2950 gfc_expr *gfc_get_constant_expr (bt, int, locus *); 2951 gfc_expr *gfc_get_character_expr (int, locus *, const char *, int len); 2952 gfc_expr *gfc_get_int_expr (int, locus *, int); 2953 gfc_expr *gfc_get_logical_expr (int, locus *, bool); 2954 gfc_expr *gfc_get_iokind_expr (locus *, io_kind); 2955 2956 void gfc_clear_shape (mpz_t *shape, int rank); 2957 void gfc_free_shape (mpz_t **shape, int rank); 2958 void gfc_free_expr (gfc_expr *); 2959 void gfc_replace_expr (gfc_expr *, gfc_expr *); 2960 mpz_t *gfc_copy_shape (mpz_t *, int); 2961 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *); 2962 gfc_expr *gfc_copy_expr (gfc_expr *); 2963 gfc_ref* gfc_copy_ref (gfc_ref*); 2964 2965 bool gfc_specification_expr (gfc_expr *); 2966 2967 int gfc_numeric_ts (gfc_typespec *); 2968 int gfc_kind_max (gfc_expr *, gfc_expr *); 2969 2970 bool gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3; 2971 bool gfc_check_assign (gfc_expr *, gfc_expr *, int); 2972 bool gfc_check_pointer_assign (gfc_expr *, gfc_expr *); 2973 bool gfc_check_assign_symbol (gfc_symbol *, gfc_component *, gfc_expr *); 2974 2975 bool gfc_has_default_initializer (gfc_symbol *); 2976 gfc_expr *gfc_default_initializer (gfc_typespec *); 2977 gfc_expr *gfc_get_variable_expr (gfc_symtree *); 2978 void gfc_add_full_array_ref (gfc_expr *, gfc_array_spec *); 2979 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *); 2980 2981 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr); 2982 2983 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *, 2984 bool (*)(gfc_expr *, gfc_symbol *, int*), 2985 int); 2986 void gfc_expr_set_symbols_referenced (gfc_expr *); 2987 bool gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool); 2988 2989 gfc_component * gfc_get_proc_ptr_comp (gfc_expr *); 2990 bool gfc_is_proc_ptr_comp (gfc_expr *); 2991 2992 bool gfc_ref_this_image (gfc_ref *ref); 2993 bool gfc_is_coindexed (gfc_expr *); 2994 bool gfc_is_coarray (gfc_expr *); 2995 int gfc_get_corank (gfc_expr *); 2996 bool gfc_has_ultimate_allocatable (gfc_expr *); 2997 bool gfc_has_ultimate_pointer (gfc_expr *); 2998 2999 gfc_expr* gfc_build_intrinsic_call (gfc_namespace *, gfc_isym_id, const char*, 3000 locus, unsigned, ...); 3001 bool gfc_check_vardef_context (gfc_expr*, bool, bool, bool, const char*); 3002 3003 3004 /* st.c */ 3005 extern gfc_code new_st; 3006 3007 void gfc_clear_new_st (void); 3008 gfc_code *gfc_get_code (gfc_exec_op); 3009 gfc_code *gfc_append_code (gfc_code *, gfc_code *); 3010 void gfc_free_statement (gfc_code *); 3011 void gfc_free_statements (gfc_code *); 3012 void gfc_free_association_list (gfc_association_list *); 3013 3014 /* resolve.c */ 3015 bool gfc_resolve_expr (gfc_expr *); 3016 void gfc_resolve (gfc_namespace *); 3017 void gfc_resolve_code (gfc_code *, gfc_namespace *); 3018 void gfc_resolve_blocks (gfc_code *, gfc_namespace *); 3019 int gfc_impure_variable (gfc_symbol *); 3020 int gfc_pure (gfc_symbol *); 3021 int gfc_implicit_pure (gfc_symbol *); 3022 void gfc_unset_implicit_pure (gfc_symbol *); 3023 int gfc_elemental (gfc_symbol *); 3024 bool gfc_resolve_iterator (gfc_iterator *, bool, bool); 3025 bool find_forall_index (gfc_expr *, gfc_symbol *, int); 3026 bool gfc_resolve_index (gfc_expr *, int); 3027 bool gfc_resolve_dim_arg (gfc_expr *); 3028 int gfc_is_formal_arg (void); 3029 void gfc_resolve_substring_charlen (gfc_expr *); 3030 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *); 3031 gfc_expr *gfc_expr_to_initialize (gfc_expr *); 3032 bool gfc_type_is_extensible (gfc_symbol *); 3033 bool gfc_resolve_intrinsic (gfc_symbol *, locus *); 3034 bool gfc_explicit_interface_required (gfc_symbol *, char *, int); 3035 extern int gfc_do_concurrent_flag; 3036 3037 3038 /* array.c */ 3039 gfc_iterator *gfc_copy_iterator (gfc_iterator *); 3040 3041 void gfc_free_array_spec (gfc_array_spec *); 3042 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *); 3043 3044 bool gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *); 3045 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *); 3046 bool gfc_resolve_array_spec (gfc_array_spec *, int); 3047 3048 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *); 3049 3050 void gfc_simplify_iterator_var (gfc_expr *); 3051 bool gfc_expand_constructor (gfc_expr *, bool); 3052 int gfc_constant_ac (gfc_expr *); 3053 int gfc_expanded_ac (gfc_expr *); 3054 bool gfc_resolve_character_array_constructor (gfc_expr *); 3055 bool gfc_resolve_array_constructor (gfc_expr *); 3056 bool gfc_check_constructor_type (gfc_expr *); 3057 bool gfc_check_iter_variable (gfc_expr *); 3058 bool gfc_check_constructor (gfc_expr *, bool (*)(gfc_expr *)); 3059 bool gfc_array_size (gfc_expr *, mpz_t *); 3060 bool gfc_array_dimen_size (gfc_expr *, int, mpz_t *); 3061 bool gfc_array_ref_shape (gfc_array_ref *, mpz_t *); 3062 gfc_array_ref *gfc_find_array_ref (gfc_expr *); 3063 tree gfc_conv_array_initializer (tree type, gfc_expr *); 3064 bool spec_size (gfc_array_spec *, mpz_t *); 3065 bool spec_dimen_size (gfc_array_spec *, int, mpz_t *); 3066 int gfc_is_compile_time_shape (gfc_array_spec *); 3067 3068 bool gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *); 3069 3070 3071 /* interface.c -- FIXME: some of these should be in symbol.c */ 3072 void gfc_free_interface (gfc_interface *); 3073 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *); 3074 int gfc_compare_types (gfc_typespec *, gfc_typespec *); 3075 int gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int, 3076 char *, int, const char *, const char *); 3077 void gfc_check_interfaces (gfc_namespace *); 3078 bool gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *); 3079 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *); 3080 gfc_symbol *gfc_search_interface (gfc_interface *, int, 3081 gfc_actual_arglist **); 3082 match gfc_extend_expr (gfc_expr *); 3083 void gfc_free_formal_arglist (gfc_formal_arglist *); 3084 bool gfc_extend_assign (gfc_code *, gfc_namespace *); 3085 bool gfc_check_new_interface (gfc_interface *, gfc_symbol *, locus); 3086 bool gfc_add_interface (gfc_symbol *); 3087 gfc_interface *gfc_current_interface_head (void); 3088 void gfc_set_current_interface_head (gfc_interface *); 3089 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*); 3090 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*); 3091 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus); 3092 int gfc_has_vector_subscript (gfc_expr*); 3093 gfc_intrinsic_op gfc_equivalent_op (gfc_intrinsic_op); 3094 bool gfc_check_typebound_override (gfc_symtree*, gfc_symtree*); 3095 3096 /* io.c */ 3097 extern gfc_st_label format_asterisk; 3098 3099 void gfc_free_open (gfc_open *); 3100 bool gfc_resolve_open (gfc_open *); 3101 void gfc_free_close (gfc_close *); 3102 bool gfc_resolve_close (gfc_close *); 3103 void gfc_free_filepos (gfc_filepos *); 3104 bool gfc_resolve_filepos (gfc_filepos *); 3105 void gfc_free_inquire (gfc_inquire *); 3106 bool gfc_resolve_inquire (gfc_inquire *); 3107 void gfc_free_dt (gfc_dt *); 3108 bool gfc_resolve_dt (gfc_dt *, locus *); 3109 void gfc_free_wait (gfc_wait *); 3110 bool gfc_resolve_wait (gfc_wait *); 3111 3112 /* module.c */ 3113 void gfc_module_init_2 (void); 3114 void gfc_module_done_2 (void); 3115 void gfc_dump_module (const char *, int); 3116 bool gfc_check_symbol_access (gfc_symbol *); 3117 void gfc_free_use_stmts (gfc_use_list *); 3118 3119 /* primary.c */ 3120 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *); 3121 symbol_attribute gfc_expr_attr (gfc_expr *); 3122 match gfc_match_rvalue (gfc_expr **); 3123 match gfc_match_varspec (gfc_expr*, int, bool, bool); 3124 int gfc_check_digit (char, int); 3125 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *); 3126 bool gfc_convert_to_structure_constructor (gfc_expr *, gfc_symbol *, 3127 gfc_expr **, 3128 gfc_actual_arglist **, bool); 3129 3130 /* trans.c */ 3131 void gfc_generate_code (gfc_namespace *); 3132 void gfc_generate_module_code (gfc_namespace *); 3133 void gfc_init_coarray_decl (bool); 3134 3135 /* trans-intrinsic.c */ 3136 bool gfc_inline_intrinsic_function_p (gfc_expr *); 3137 3138 /* bbt.c */ 3139 typedef int (*compare_fn) (void *, void *); 3140 void gfc_insert_bbt (void *, void *, compare_fn); 3141 void gfc_delete_bbt (void *, void *, compare_fn); 3142 3143 /* dump-parse-tree.c */ 3144 void gfc_dump_parse_tree (gfc_namespace *, FILE *); 3145 3146 /* parse.c */ 3147 bool gfc_parse_file (void); 3148 void gfc_global_used (gfc_gsymbol *, locus *); 3149 gfc_namespace* gfc_build_block_ns (gfc_namespace *); 3150 3151 /* dependency.c */ 3152 int gfc_dep_compare_functions (gfc_expr *, gfc_expr *, bool); 3153 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *); 3154 bool gfc_dep_difference (gfc_expr *, gfc_expr *, mpz_t *); 3155 3156 /* check.c */ 3157 bool gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*); 3158 bool gfc_calculate_transfer_sizes (gfc_expr*, gfc_expr*, gfc_expr*, 3159 size_t*, size_t*, size_t*); 3160 3161 /* class.c */ 3162 void gfc_fix_class_refs (gfc_expr *e); 3163 void gfc_add_component_ref (gfc_expr *, const char *); 3164 void gfc_add_class_array_ref (gfc_expr *); 3165 #define gfc_add_data_component(e) gfc_add_component_ref(e,"_data") 3166 #define gfc_add_vptr_component(e) gfc_add_component_ref(e,"_vptr") 3167 #define gfc_add_hash_component(e) gfc_add_component_ref(e,"_hash") 3168 #define gfc_add_size_component(e) gfc_add_component_ref(e,"_size") 3169 #define gfc_add_def_init_component(e) gfc_add_component_ref(e,"_def_init") 3170 #define gfc_add_final_component(e) gfc_add_component_ref(e,"_final") 3171 bool gfc_is_class_array_ref (gfc_expr *, bool *); 3172 bool gfc_is_class_scalar_expr (gfc_expr *); 3173 bool gfc_is_class_container_ref (gfc_expr *e); 3174 gfc_expr *gfc_class_initializer (gfc_typespec *, gfc_expr *); 3175 unsigned int gfc_hash_value (gfc_symbol *); 3176 bool gfc_build_class_symbol (gfc_typespec *, symbol_attribute *, 3177 gfc_array_spec **); 3178 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *); 3179 gfc_symbol *gfc_find_vtab (gfc_typespec *); 3180 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, bool*, 3181 const char*, bool, locus*); 3182 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, bool*, 3183 const char*, bool, locus*); 3184 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, bool*, 3185 gfc_intrinsic_op, bool, 3186 locus*); 3187 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*); 3188 bool gfc_is_finalizable (gfc_symbol *, gfc_expr **); 3189 3190 #define CLASS_DATA(sym) sym->ts.u.derived->components 3191 #define UNLIMITED_POLY(sym) \ 3192 (sym != NULL && sym->ts.type == BT_CLASS \ 3193 && CLASS_DATA (sym) \ 3194 && CLASS_DATA (sym)->ts.u.derived \ 3195 && CLASS_DATA (sym)->ts.u.derived->attr.unlimited_polymorphic) 3196 3197 /* frontend-passes.c */ 3198 3199 void gfc_run_passes (gfc_namespace *); 3200 3201 typedef int (*walk_code_fn_t) (gfc_code **, int *, void *); 3202 typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *); 3203 3204 int gfc_dummy_code_callback (gfc_code **, int *, void *); 3205 int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *); 3206 int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *); 3207 3208 #endif /* GCC_GFORTRAN_H */ 3209