intrinsic.c (add_functions): Undo change; mark float and sngl as STD_F77.
[gcc.git] / gcc / fortran / gfortran.h
1 /* gfortran header file
2 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
3 Free Software Foundation, Inc.
4 Contributed by Andy Vaught
5
6 This file is part of GCC.
7
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 3, or (at your option) any later
11 version.
12
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
21
22 #ifndef GCC_GFORTRAN_H
23 #define GCC_GFORTRAN_H
24
25 /* It's probably insane to have this large of a header file, but it
26 seemed like everything had to be recompiled anyway when a change
27 was made to a header file, and there were ordering issues with
28 multiple header files. Besides, Microsoft's winnt.h was 250k last
29 time I looked, so by comparison this is perfectly reasonable. */
30
31 /* Declarations common to the front-end and library are put in
32 libgfortran/libgfortran_frontend.h */
33 #include "libgfortran.h"
34
35
36 #include "system.h"
37 #include "intl.h"
38 #include "coretypes.h"
39 #include "input.h"
40 #include "splay-tree.h"
41 /* The following ifdefs are recommended by the autoconf documentation
42 for any code using alloca. */
43
44 /* AIX requires this to be the first thing in the file. */
45 #ifdef __GNUC__
46 #else /* not __GNUC__ */
47 #ifdef HAVE_ALLOCA_H
48 #include <alloca.h>
49 #else /* do not HAVE_ALLOCA_H */
50 #ifdef _AIX
51 #pragma alloca
52 #else
53 #ifndef alloca /* predefined by HP cc +Olibcalls */
54 char *alloca ();
55 #endif /* not predefined */
56 #endif /* not _AIX */
57 #endif /* do not HAVE_ALLOCA_H */
58 #endif /* not __GNUC__ */
59
60 /* Major control parameters. */
61
62 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
63 #define GFC_MAX_BINDING_LABEL_LEN 126 /* (2 * GFC_MAX_SYMBOL_LEN) */
64 #define GFC_MAX_LINE 132 /* Characters beyond this are not seen. */
65 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
66
67 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
68
69
70 #define free(x) Use_gfc_free_instead_of_free()
71 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t'))
72
73 #ifndef NULL
74 #define NULL ((void *) 0)
75 #endif
76
77 /* Stringization. */
78 #define stringize(x) expand_macro(x)
79 #define expand_macro(x) # x
80
81 /* For a the runtime library, a standard prefix is a requirement to
82 avoid cluttering the namespace with things nobody asked for. It's
83 ugly to look at and a pain to type when you add the prefix by hand,
84 so we hide it behind a macro. */
85 #define PREFIX(x) "_gfortran_" x
86 #define PREFIX_LEN 10
87
88 #define BLANK_COMMON_NAME "__BLNK__"
89
90 /* Macro to initialize an mstring structure. */
91 #define minit(s, t) { s, NULL, t }
92
93 /* Structure for storing strings to be matched by gfc_match_string. */
94 typedef struct
95 {
96 const char *string;
97 const char *mp;
98 int tag;
99 }
100 mstring;
101
102
103
104 /*************************** Enums *****************************/
105
106 /* The author remains confused to this day about the convention of
107 returning '0' for 'SUCCESS'... or was it the other way around? The
108 following enum makes things much more readable. We also start
109 values off at one instead of zero. */
110
111 typedef enum
112 { SUCCESS = 1, FAILURE }
113 try;
114
115 /* This is returned by gfc_notification_std to know if, given the flags
116 that were given (-std=, -pedantic) we should issue an error, a warning
117 or nothing. */
118
119 typedef enum
120 { SILENT, WARNING, ERROR }
121 notification;
122
123 /* Matchers return one of these three values. The difference between
124 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
125 successful, but that something non-syntactic is wrong and an error
126 has already been issued. */
127
128 typedef enum
129 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR }
130 match;
131
132 typedef enum
133 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN }
134 gfc_source_form;
135
136 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer
137 can take any arg with the pointer attribute as a param. */
138 typedef enum
139 { BT_UNKNOWN = 1, BT_INTEGER, BT_REAL, BT_COMPLEX,
140 BT_LOGICAL, BT_CHARACTER, BT_DERIVED, BT_PROCEDURE, BT_HOLLERITH,
141 BT_VOID
142 }
143 bt;
144
145 /* Expression node types. */
146 typedef enum
147 { EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
148 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL
149 }
150 expr_t;
151
152 /* Array types. */
153 typedef enum
154 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
155 AS_ASSUMED_SIZE, AS_UNKNOWN
156 }
157 array_type;
158
159 typedef enum
160 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN }
161 ar_type;
162
163 /* Statement label types. */
164 typedef enum
165 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET,
166 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
167 }
168 gfc_sl_type;
169
170 /* Intrinsic operators. */
171 typedef enum
172 { GFC_INTRINSIC_BEGIN = 0,
173 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
174 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
175 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
176 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
177 /* ==, /=, >, >=, <, <= */
178 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
179 INTRINSIC_LT, INTRINSIC_LE,
180 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
181 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
182 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
183 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN,
184 INTRINSIC_PARENTHESES, GFC_INTRINSIC_END /* Sentinel */
185 }
186 gfc_intrinsic_op;
187
188
189 /* This macro is the number of intrinsic operators that exist.
190 Assumptions are made about the numbering of the interface_op enums. */
191 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
192
193 /* Arithmetic results. */
194 typedef enum
195 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
196 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC
197 }
198 arith;
199
200 /* Statements. */
201 typedef enum
202 {
203 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_BACKSPACE, ST_BLOCK_DATA,
204 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
205 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
206 ST_ELSEWHERE, ST_END_BLOCK_DATA, ST_ENDDO, ST_IMPLIED_ENDDO,
207 ST_END_FILE, ST_FLUSH, ST_END_FORALL, ST_END_FUNCTION, ST_ENDIF,
208 ST_END_INTERFACE, ST_END_MODULE, ST_END_PROGRAM, ST_END_SELECT,
209 ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE, ST_ENTRY, ST_EQUIVALENCE,
210 ST_EXIT, ST_FORALL, ST_FORALL_BLOCK, ST_FORMAT, ST_FUNCTION, ST_GOTO,
211 ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE, ST_IMPORT, ST_INQUIRE, ST_INTERFACE,
212 ST_PARAMETER, ST_MODULE, ST_MODULE_PROC, ST_NAMELIST, ST_NULLIFY, ST_OPEN,
213 ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC, ST_READ, ST_RETURN, ST_REWIND,
214 ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE, ST_WHERE_BLOCK, ST_WHERE, ST_WRITE,
215 ST_ASSIGNMENT, ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE,
216 ST_SIMPLE_IF, ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT,
217 ST_ENUM, ST_ENUMERATOR, ST_END_ENUM,
218 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_CRITICAL,
219 ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED, ST_OMP_END_PARALLEL,
220 ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
221 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
222 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
223 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
224 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
225 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_PROCEDURE,
226 ST_NONE
227 }
228 gfc_statement;
229
230
231 /* Types of interfaces that we can have. Assignment interfaces are
232 considered to be intrinsic operators. */
233 typedef enum
234 {
235 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
236 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT
237 }
238 interface_type;
239
240 /* Symbol flavors: these are all mutually exclusive.
241 10 elements = 4 bits. */
242 typedef enum sym_flavor
243 {
244 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
245 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
246 FL_VOID
247 }
248 sym_flavor;
249
250 /* Procedure types. 7 elements = 3 bits. */
251 typedef enum procedure_type
252 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
253 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
254 }
255 procedure_type;
256
257 /* Intent types. */
258 typedef enum sym_intent
259 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
260 }
261 sym_intent;
262
263 /* Access types. */
264 typedef enum gfc_access
265 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
266 }
267 gfc_access;
268
269 /* Flags to keep track of where an interface came from.
270 4 elements = 2 bits. */
271 typedef enum ifsrc
272 { IFSRC_UNKNOWN = 0, IFSRC_DECL, IFSRC_IFBODY, IFSRC_USAGE
273 }
274 ifsrc;
275
276 /* Whether a SAVE attribute was set explicitly or implicitly. */
277 typedef enum save_state
278 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
279 }
280 save_state;
281
282 /* Strings for all symbol attributes. We use these for dumping the
283 parse tree, in error messages, and also when reading and writing
284 modules. In symbol.c. */
285 extern const mstring flavors[];
286 extern const mstring procedures[];
287 extern const mstring intents[];
288 extern const mstring access_types[];
289 extern const mstring ifsrc_types[];
290 extern const mstring save_status[];
291
292 /* Enumeration of all the generic intrinsic functions. Used by the
293 backend for identification of a function. */
294
295 enum gfc_isym_id
296 {
297 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
298 the backend (eg. KIND). */
299 GFC_ISYM_NONE = 0,
300 GFC_ISYM_ABORT,
301 GFC_ISYM_ABS,
302 GFC_ISYM_ACCESS,
303 GFC_ISYM_ACHAR,
304 GFC_ISYM_ACOS,
305 GFC_ISYM_ACOSH,
306 GFC_ISYM_ADJUSTL,
307 GFC_ISYM_ADJUSTR,
308 GFC_ISYM_AIMAG,
309 GFC_ISYM_AINT,
310 GFC_ISYM_ALARM,
311 GFC_ISYM_ALL,
312 GFC_ISYM_ALLOCATED,
313 GFC_ISYM_AND,
314 GFC_ISYM_ANINT,
315 GFC_ISYM_ANY,
316 GFC_ISYM_ASIN,
317 GFC_ISYM_ASINH,
318 GFC_ISYM_ASSOCIATED,
319 GFC_ISYM_ATAN,
320 GFC_ISYM_ATAN2,
321 GFC_ISYM_ATANH,
322 GFC_ISYM_BIT_SIZE,
323 GFC_ISYM_BTEST,
324 GFC_ISYM_CEILING,
325 GFC_ISYM_CHAR,
326 GFC_ISYM_CHDIR,
327 GFC_ISYM_CHMOD,
328 GFC_ISYM_CMPLX,
329 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
330 GFC_ISYM_COMPLEX,
331 GFC_ISYM_CONJG,
332 GFC_ISYM_CONVERSION,
333 GFC_ISYM_COS,
334 GFC_ISYM_COSH,
335 GFC_ISYM_COUNT,
336 GFC_ISYM_CPU_TIME,
337 GFC_ISYM_CSHIFT,
338 GFC_ISYM_CTIME,
339 GFC_ISYM_DATE_AND_TIME,
340 GFC_ISYM_DBLE,
341 GFC_ISYM_DIGITS,
342 GFC_ISYM_DIM,
343 GFC_ISYM_DOT_PRODUCT,
344 GFC_ISYM_DPROD,
345 GFC_ISYM_DTIME,
346 GFC_ISYM_EOSHIFT,
347 GFC_ISYM_EPSILON,
348 GFC_ISYM_ERF,
349 GFC_ISYM_ERFC,
350 GFC_ISYM_ETIME,
351 GFC_ISYM_EXIT,
352 GFC_ISYM_EXP,
353 GFC_ISYM_EXPONENT,
354 GFC_ISYM_FDATE,
355 GFC_ISYM_FGET,
356 GFC_ISYM_FGETC,
357 GFC_ISYM_FLOOR,
358 GFC_ISYM_FLUSH,
359 GFC_ISYM_FNUM,
360 GFC_ISYM_FPUT,
361 GFC_ISYM_FPUTC,
362 GFC_ISYM_FRACTION,
363 GFC_ISYM_FREE,
364 GFC_ISYM_FSEEK,
365 GFC_ISYM_FSTAT,
366 GFC_ISYM_FTELL,
367 GFC_ISYM_GAMMA,
368 GFC_ISYM_GERROR,
369 GFC_ISYM_GETARG,
370 GFC_ISYM_GET_COMMAND,
371 GFC_ISYM_GET_COMMAND_ARGUMENT,
372 GFC_ISYM_GETCWD,
373 GFC_ISYM_GETENV,
374 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
375 GFC_ISYM_GETGID,
376 GFC_ISYM_GETLOG,
377 GFC_ISYM_GETPID,
378 GFC_ISYM_GETUID,
379 GFC_ISYM_GMTIME,
380 GFC_ISYM_HOSTNM,
381 GFC_ISYM_HUGE,
382 GFC_ISYM_IACHAR,
383 GFC_ISYM_IAND,
384 GFC_ISYM_IARGC,
385 GFC_ISYM_IBCLR,
386 GFC_ISYM_IBITS,
387 GFC_ISYM_IBSET,
388 GFC_ISYM_ICHAR,
389 GFC_ISYM_IDATE,
390 GFC_ISYM_IEOR,
391 GFC_ISYM_IERRNO,
392 GFC_ISYM_INDEX,
393 GFC_ISYM_INT,
394 GFC_ISYM_INT2,
395 GFC_ISYM_INT8,
396 GFC_ISYM_IOR,
397 GFC_ISYM_IRAND,
398 GFC_ISYM_ISATTY,
399 GFC_ISYM_IS_IOSTAT_END,
400 GFC_ISYM_IS_IOSTAT_EOR,
401 GFC_ISYM_ISNAN,
402 GFC_ISYM_ISHFT,
403 GFC_ISYM_ISHFTC,
404 GFC_ISYM_ITIME,
405 GFC_ISYM_J0,
406 GFC_ISYM_J1,
407 GFC_ISYM_JN,
408 GFC_ISYM_KILL,
409 GFC_ISYM_KIND,
410 GFC_ISYM_LBOUND,
411 GFC_ISYM_LEN,
412 GFC_ISYM_LEN_TRIM,
413 GFC_ISYM_LGAMMA,
414 GFC_ISYM_LGE,
415 GFC_ISYM_LGT,
416 GFC_ISYM_LINK,
417 GFC_ISYM_LLE,
418 GFC_ISYM_LLT,
419 GFC_ISYM_LOC,
420 GFC_ISYM_LOG,
421 GFC_ISYM_LOG10,
422 GFC_ISYM_LOGICAL,
423 GFC_ISYM_LONG,
424 GFC_ISYM_LSHIFT,
425 GFC_ISYM_LSTAT,
426 GFC_ISYM_LTIME,
427 GFC_ISYM_MALLOC,
428 GFC_ISYM_MATMUL,
429 GFC_ISYM_MAX,
430 GFC_ISYM_MAXEXPONENT,
431 GFC_ISYM_MAXLOC,
432 GFC_ISYM_MAXVAL,
433 GFC_ISYM_MCLOCK,
434 GFC_ISYM_MCLOCK8,
435 GFC_ISYM_MERGE,
436 GFC_ISYM_MIN,
437 GFC_ISYM_MINEXPONENT,
438 GFC_ISYM_MINLOC,
439 GFC_ISYM_MINVAL,
440 GFC_ISYM_MOD,
441 GFC_ISYM_MODULO,
442 GFC_ISYM_MOVE_ALLOC,
443 GFC_ISYM_MVBITS,
444 GFC_ISYM_NEAREST,
445 GFC_ISYM_NEW_LINE,
446 GFC_ISYM_NINT,
447 GFC_ISYM_NOT,
448 GFC_ISYM_NULL,
449 GFC_ISYM_OR,
450 GFC_ISYM_PACK,
451 GFC_ISYM_PERROR,
452 GFC_ISYM_PRECISION,
453 GFC_ISYM_PRESENT,
454 GFC_ISYM_PRODUCT,
455 GFC_ISYM_RADIX,
456 GFC_ISYM_RAND,
457 GFC_ISYM_RANDOM_NUMBER,
458 GFC_ISYM_RANDOM_SEED,
459 GFC_ISYM_RANGE,
460 GFC_ISYM_REAL,
461 GFC_ISYM_RENAME,
462 GFC_ISYM_REPEAT,
463 GFC_ISYM_RESHAPE,
464 GFC_ISYM_RRSPACING,
465 GFC_ISYM_RSHIFT,
466 GFC_ISYM_SCALE,
467 GFC_ISYM_SCAN,
468 GFC_ISYM_SECNDS,
469 GFC_ISYM_SECOND,
470 GFC_ISYM_SET_EXPONENT,
471 GFC_ISYM_SHAPE,
472 GFC_ISYM_SIGN,
473 GFC_ISYM_SIGNAL,
474 GFC_ISYM_SI_KIND,
475 GFC_ISYM_SIN,
476 GFC_ISYM_SINH,
477 GFC_ISYM_SIZE,
478 GFC_ISYM_SLEEP,
479 GFC_ISYM_SIZEOF,
480 GFC_ISYM_SPACING,
481 GFC_ISYM_SPREAD,
482 GFC_ISYM_SQRT,
483 GFC_ISYM_SRAND,
484 GFC_ISYM_SR_KIND,
485 GFC_ISYM_STAT,
486 GFC_ISYM_SUM,
487 GFC_ISYM_SYMLINK,
488 GFC_ISYM_SYMLNK,
489 GFC_ISYM_SYSTEM,
490 GFC_ISYM_SYSTEM_CLOCK,
491 GFC_ISYM_TAN,
492 GFC_ISYM_TANH,
493 GFC_ISYM_TIME,
494 GFC_ISYM_TIME8,
495 GFC_ISYM_TINY,
496 GFC_ISYM_TRANSFER,
497 GFC_ISYM_TRANSPOSE,
498 GFC_ISYM_TRIM,
499 GFC_ISYM_TTYNAM,
500 GFC_ISYM_UBOUND,
501 GFC_ISYM_UMASK,
502 GFC_ISYM_UNLINK,
503 GFC_ISYM_UNPACK,
504 GFC_ISYM_VERIFY,
505 GFC_ISYM_XOR,
506 GFC_ISYM_Y0,
507 GFC_ISYM_Y1,
508 GFC_ISYM_YN
509 };
510 typedef enum gfc_isym_id gfc_isym_id;
511
512
513 typedef enum
514 {
515 GFC_INIT_REAL_OFF = 0,
516 GFC_INIT_REAL_ZERO,
517 GFC_INIT_REAL_NAN,
518 GFC_INIT_REAL_INF,
519 GFC_INIT_REAL_NEG_INF
520 }
521 init_local_real;
522
523 typedef enum
524 {
525 GFC_INIT_LOGICAL_OFF = 0,
526 GFC_INIT_LOGICAL_FALSE,
527 GFC_INIT_LOGICAL_TRUE
528 }
529 init_local_logical;
530
531 typedef enum
532 {
533 GFC_INIT_CHARACTER_OFF = 0,
534 GFC_INIT_CHARACTER_ON
535 }
536 init_local_character;
537
538 typedef enum
539 {
540 GFC_INIT_INTEGER_OFF = 0,
541 GFC_INIT_INTEGER_ON
542 }
543 init_local_integer;
544
545 /************************* Structures *****************************/
546
547 /* Used for keeping things in balanced binary trees. */
548 #define BBT_HEADER(self) int priority; struct self *left, *right
549
550 #define NAMED_INTCST(a,b,c) a,
551 typedef enum
552 {
553 ISOFORTRANENV_INVALID = -1,
554 #include "iso-fortran-env.def"
555 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
556 }
557 iso_fortran_env_symbol;
558 #undef NAMED_INTCST
559
560 #define NAMED_INTCST(a,b,c) a,
561 #define NAMED_REALCST(a,b,c) a,
562 #define NAMED_CMPXCST(a,b,c) a,
563 #define NAMED_LOGCST(a,b,c) a,
564 #define NAMED_CHARKNDCST(a,b,c) a,
565 #define NAMED_CHARCST(a,b,c) a,
566 #define DERIVED_TYPE(a,b,c) a,
567 #define PROCEDURE(a,b) a,
568 typedef enum
569 {
570 ISOCBINDING_INVALID = -1,
571 #include "iso-c-binding.def"
572 ISOCBINDING_LAST,
573 ISOCBINDING_NUMBER = ISOCBINDING_LAST
574 }
575 iso_c_binding_symbol;
576 #undef NAMED_INTCST
577 #undef NAMED_REALCST
578 #undef NAMED_CMPXCST
579 #undef NAMED_LOGCST
580 #undef NAMED_CHARKNDCST
581 #undef NAMED_CHARCST
582 #undef DERIVED_TYPE
583 #undef PROCEDURE
584
585 typedef enum
586 {
587 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING
588 }
589 intmod_id;
590
591 typedef struct
592 {
593 char name[GFC_MAX_SYMBOL_LEN + 1];
594 int value; /* Used for both integer and character values. */
595 bt f90_type;
596 }
597 CInteropKind_t;
598
599 /* Array of structs, where the structs represent the C interop kinds.
600 The list will be implemented based on a hash of the kind name since
601 these could be accessed multiple times.
602 Declared in trans-types.c as a global, since it's in that file
603 that the list is initialized. */
604 extern CInteropKind_t c_interop_kinds_table[];
605
606 /* Symbol attribute structure. */
607 typedef struct
608 {
609 /* Variable attributes. */
610 unsigned allocatable:1, dimension:1, external:1, intrinsic:1,
611 optional:1, pointer:1, target:1, value:1, volatile_:1,
612 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
613 implied_index:1, subref_array_pointer:1;
614
615 ENUM_BITFIELD (save_state) save:2;
616
617 unsigned data:1, /* Symbol is named in a DATA statement. */
618 protected:1, /* Symbol has been marked as protected. */
619 use_assoc:1, /* Symbol has been use-associated. */
620 use_only:1, /* Symbol has been use-associated, with ONLY. */
621 use_rename:1, /* Symbol has been use-associated and renamed. */
622 imported:1; /* Symbol has been associated by IMPORT. */
623
624 unsigned in_namelist:1, in_common:1, in_equivalence:1;
625 unsigned function:1, subroutine:1, procedure:1;
626 unsigned generic:1, generic_copy:1;
627 unsigned implicit_type:1; /* Type defined via implicit rules. */
628 unsigned untyped:1; /* No implicit type could be found. */
629
630 unsigned is_bind_c:1; /* say if is bound to C */
631
632 /* These flags are both in the typespec and attribute. The attribute
633 list is what gets read from/written to a module file. The typespec
634 is created from a decl being processed. */
635 unsigned is_c_interop:1; /* It's c interoperable. */
636 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
637
638 /* Function/subroutine attributes */
639 unsigned sequence:1, elemental:1, pure:1, recursive:1;
640 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
641
642 /* This is set if the subroutine doesn't return. Currently, this
643 is only possible for intrinsic subroutines. */
644 unsigned noreturn:1;
645
646 /* Set if this procedure is an alternate entry point. These procedures
647 don't have any code associated, and the backend will turn them into
648 thunks to the master function. */
649 unsigned entry:1;
650
651 /* Set if this is the master function for a procedure with multiple
652 entry points. */
653 unsigned entry_master:1;
654
655 /* Set if this is the master function for a function with multiple
656 entry points where characteristics of the entry points differ. */
657 unsigned mixed_entry_master:1;
658
659 /* Set if a function must always be referenced by an explicit interface. */
660 unsigned always_explicit:1;
661
662 /* Set if the symbol has been referenced in an expression. No further
663 modification of type or type parameters is permitted. */
664 unsigned referenced:1;
665
666 /* Set if the symbol has ambiguous interfaces. */
667 unsigned ambiguous_interfaces:1;
668
669 /* Set if this is the symbol for the main program. */
670 unsigned is_main_program:1;
671
672 /* Mutually exclusive multibit attributes. */
673 ENUM_BITFIELD (gfc_access) access:2;
674 ENUM_BITFIELD (sym_intent) intent:2;
675 ENUM_BITFIELD (sym_flavor) flavor:4;
676 ENUM_BITFIELD (ifsrc) if_source:2;
677
678 ENUM_BITFIELD (procedure_type) proc:3;
679
680 /* Special attributes for Cray pointers, pointees. */
681 unsigned cray_pointer:1, cray_pointee:1;
682
683 /* The symbol is a derived type with allocatable components, pointer
684 components or private components, possibly nested. zer_comp
685 is true if the derived type has no component at all. */
686 unsigned alloc_comp:1, pointer_comp:1, private_comp:1, zero_comp:1;
687
688 /* The namespace where the VOLATILE attribute has been set. */
689 struct gfc_namespace *volatile_ns;
690 }
691 symbol_attribute;
692
693
694 /* The following three structures are used to identify a location in
695 the sources.
696
697 gfc_file is used to maintain a tree of the source files and how
698 they include each other
699
700 gfc_linebuf holds a single line of source code and information
701 which file it resides in
702
703 locus point to the sourceline and the character in the source
704 line.
705 */
706
707 typedef struct gfc_file
708 {
709 struct gfc_file *next, *up;
710 int inclusion_line, line;
711 char *filename;
712 } gfc_file;
713
714 typedef struct gfc_linebuf
715 {
716 #ifdef USE_MAPPED_LOCATION
717 source_location location;
718 #else
719 int linenum;
720 #endif
721 struct gfc_file *file;
722 struct gfc_linebuf *next;
723
724 int truncated;
725 bool dbg_emitted;
726
727 char line[1];
728 } gfc_linebuf;
729
730 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
731
732 #ifdef USE_MAPPED_LOCATION
733 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
734 #else
735 #define gfc_linebuf_linenum(LBUF) ((LBUF)->linenum)
736 #endif
737
738 typedef struct
739 {
740 char *nextc;
741 gfc_linebuf *lb;
742 } locus;
743
744 /* In order for the "gfc" format checking to work correctly, you must
745 have declared a typedef locus first. */
746 #if GCC_VERSION >= 4001
747 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
748 #else
749 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
750 #endif
751
752
753 extern int gfc_suppress_error;
754
755
756 /* Character length structures hold the expression that gives the
757 length of a character variable. We avoid putting these into
758 gfc_typespec because doing so prevents us from doing structure
759 copies and forces us to deallocate any typespecs we create, as well
760 as structures that contain typespecs. They also can have multiple
761 character typespecs pointing to them.
762
763 These structures form a singly linked list within the current
764 namespace and are deallocated with the namespace. It is possible to
765 end up with gfc_charlen structures that have nothing pointing to them. */
766
767 typedef struct gfc_charlen
768 {
769 struct gfc_expr *length;
770 struct gfc_charlen *next;
771 tree backend_decl;
772
773 int resolved;
774 }
775 gfc_charlen;
776
777 #define gfc_get_charlen() gfc_getmem(sizeof(gfc_charlen))
778
779 /* Type specification structure. FIXME: derived and cl could be union??? */
780 typedef struct
781 {
782 bt type;
783 int kind;
784 struct gfc_symbol *derived;
785 gfc_charlen *cl; /* For character types only. */
786 int is_c_interop;
787 int is_iso_c;
788 bt f90_type;
789 }
790 gfc_typespec;
791
792 /* Array specification. */
793 typedef struct
794 {
795 int rank; /* A rank of zero means that a variable is a scalar. */
796 array_type type;
797 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
798
799 /* These two fields are used with the Cray Pointer extension. */
800 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
801 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
802 AS_EXPLICIT, but we want to remember that we
803 did this. */
804
805 }
806 gfc_array_spec;
807
808 #define gfc_get_array_spec() gfc_getmem(sizeof(gfc_array_spec))
809
810
811 /* Components of derived types. */
812 typedef struct gfc_component
813 {
814 const char *name;
815 gfc_typespec ts;
816
817 int pointer, allocatable, dimension;
818 gfc_access access;
819 gfc_array_spec *as;
820
821 tree backend_decl;
822 locus loc;
823 struct gfc_expr *initializer;
824 struct gfc_component *next;
825 }
826 gfc_component;
827
828 #define gfc_get_component() gfc_getmem(sizeof(gfc_component))
829
830 /* Formal argument lists are lists of symbols. */
831 typedef struct gfc_formal_arglist
832 {
833 /* Symbol representing the argument at this position in the arglist. */
834 struct gfc_symbol *sym;
835 /* Points to the next formal argument. */
836 struct gfc_formal_arglist *next;
837 }
838 gfc_formal_arglist;
839
840 #define gfc_get_formal_arglist() gfc_getmem(sizeof(gfc_formal_arglist))
841
842
843 /* The gfc_actual_arglist structure is for actual arguments. */
844 typedef struct gfc_actual_arglist
845 {
846 const char *name;
847 /* Alternate return label when the expr member is null. */
848 struct gfc_st_label *label;
849
850 /* This is set to the type of an eventual omitted optional
851 argument. This is used to determine if a hidden string length
852 argument has to be added to a function call. */
853 bt missing_arg_type;
854
855 struct gfc_expr *expr;
856 struct gfc_actual_arglist *next;
857 }
858 gfc_actual_arglist;
859
860 #define gfc_get_actual_arglist() gfc_getmem(sizeof(gfc_actual_arglist))
861
862
863 /* Because a symbol can belong to multiple namelists, they must be
864 linked externally to the symbol itself. */
865 typedef struct gfc_namelist
866 {
867 struct gfc_symbol *sym;
868 struct gfc_namelist *next;
869 }
870 gfc_namelist;
871
872 #define gfc_get_namelist() gfc_getmem(sizeof(gfc_namelist))
873
874 enum
875 {
876 OMP_LIST_PRIVATE,
877 OMP_LIST_FIRSTPRIVATE,
878 OMP_LIST_LASTPRIVATE,
879 OMP_LIST_COPYPRIVATE,
880 OMP_LIST_SHARED,
881 OMP_LIST_COPYIN,
882 OMP_LIST_PLUS,
883 OMP_LIST_REDUCTION_FIRST = OMP_LIST_PLUS,
884 OMP_LIST_MULT,
885 OMP_LIST_SUB,
886 OMP_LIST_AND,
887 OMP_LIST_OR,
888 OMP_LIST_EQV,
889 OMP_LIST_NEQV,
890 OMP_LIST_MAX,
891 OMP_LIST_MIN,
892 OMP_LIST_IAND,
893 OMP_LIST_IOR,
894 OMP_LIST_IEOR,
895 OMP_LIST_REDUCTION_LAST = OMP_LIST_IEOR,
896 OMP_LIST_NUM
897 };
898
899 /* Because a symbol can belong to multiple namelists, they must be
900 linked externally to the symbol itself. */
901 typedef struct gfc_omp_clauses
902 {
903 struct gfc_expr *if_expr;
904 struct gfc_expr *num_threads;
905 gfc_namelist *lists[OMP_LIST_NUM];
906 enum
907 {
908 OMP_SCHED_NONE,
909 OMP_SCHED_STATIC,
910 OMP_SCHED_DYNAMIC,
911 OMP_SCHED_GUIDED,
912 OMP_SCHED_RUNTIME
913 } sched_kind;
914 struct gfc_expr *chunk_size;
915 enum
916 {
917 OMP_DEFAULT_UNKNOWN,
918 OMP_DEFAULT_NONE,
919 OMP_DEFAULT_PRIVATE,
920 OMP_DEFAULT_SHARED
921 } default_sharing;
922 bool nowait, ordered;
923 }
924 gfc_omp_clauses;
925
926 #define gfc_get_omp_clauses() gfc_getmem(sizeof(gfc_omp_clauses))
927
928
929 /* The gfc_st_label structure is a doubly linked list attached to a
930 namespace that records the usage of statement labels within that
931 space. */
932 /* TODO: Make format/statement specifics a union. */
933 typedef struct gfc_st_label
934 {
935 BBT_HEADER(gfc_st_label);
936
937 int value;
938
939 gfc_sl_type defined, referenced;
940
941 struct gfc_expr *format;
942
943 tree backend_decl;
944
945 locus where;
946 }
947 gfc_st_label;
948
949
950 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
951 typedef struct gfc_interface
952 {
953 struct gfc_symbol *sym;
954 locus where;
955 struct gfc_interface *next;
956 }
957 gfc_interface;
958
959 #define gfc_get_interface() gfc_getmem(sizeof(gfc_interface))
960
961
962 /* User operator nodes. These are like stripped down symbols. */
963 typedef struct
964 {
965 const char *name;
966
967 gfc_interface *operator;
968 struct gfc_namespace *ns;
969 gfc_access access;
970 }
971 gfc_user_op;
972
973 /* Symbol nodes. These are important things. They are what the
974 standard refers to as "entities". The possibly multiple names that
975 refer to the same entity are accomplished by a binary tree of
976 symtree structures that is balanced by the red-black method-- more
977 than one symtree node can point to any given symbol. */
978
979 typedef struct gfc_symbol
980 {
981 const char *name; /* Primary name, before renaming */
982 const char *module; /* Module this symbol came from */
983 locus declared_at;
984
985 gfc_typespec ts;
986 symbol_attribute attr;
987
988 /* The interface member points to the formal argument list if the
989 symbol is a function or subroutine name. If the symbol is a
990 generic name, the generic member points to the list of
991 interfaces. */
992
993 gfc_interface *generic;
994 gfc_access component_access;
995
996 gfc_formal_arglist *formal;
997 struct gfc_namespace *formal_ns;
998
999 struct gfc_expr *value; /* Parameter/Initializer value */
1000 gfc_array_spec *as;
1001 struct gfc_symbol *result; /* function result symbol */
1002 gfc_component *components; /* Derived type components */
1003
1004 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
1005
1006 /* Defined only for Cray pointees; points to their pointer. */
1007 struct gfc_symbol *cp_pointer;
1008
1009 struct gfc_symbol *common_next; /* Links for COMMON syms */
1010
1011 /* This is in fact a gfc_common_head but it is only used for pointer
1012 comparisons to check if symbols are in the same common block. */
1013 struct gfc_common_head* common_head;
1014
1015 /* Make sure setup code for dummy arguments is generated in the correct
1016 order. */
1017 int dummy_order;
1018
1019 int entry_id;
1020
1021 gfc_namelist *namelist, *namelist_tail;
1022
1023 /* Change management fields. Symbols that might be modified by the
1024 current statement have the mark member nonzero and are kept in a
1025 singly linked list through the tlink field. Of these symbols,
1026 symbols with old_symbol equal to NULL are symbols created within
1027 the current statement. Otherwise, old_symbol points to a copy of
1028 the old symbol. */
1029
1030 struct gfc_symbol *old_symbol, *tlink;
1031 unsigned mark:1, new:1;
1032 /* Nonzero if all equivalences associated with this symbol have been
1033 processed. */
1034 unsigned equiv_built:1;
1035 /* Set if this variable is used as an index name in a FORALL. */
1036 unsigned forall_index:1;
1037 int refs;
1038 struct gfc_namespace *ns; /* namespace containing this symbol */
1039
1040 tree backend_decl;
1041
1042 /* Identity of the intrinsic module the symbol comes from, or
1043 INTMOD_NONE if it's not imported from a intrinsic module. */
1044 intmod_id from_intmod;
1045 /* Identity of the symbol from intrinsic modules, from enums maintained
1046 separately by each intrinsic module. Used together with from_intmod,
1047 it uniquely identifies a symbol from an intrinsic module. */
1048 int intmod_sym_id;
1049
1050 /* This may be repetitive, since the typespec now has a binding
1051 label field. */
1052 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1053 /* Store a reference to the common_block, if this symbol is in one. */
1054 struct gfc_common_head *common_block;
1055 }
1056 gfc_symbol;
1057
1058
1059 /* This structure is used to keep track of symbols in common blocks. */
1060 typedef struct gfc_common_head
1061 {
1062 locus where;
1063 char use_assoc, saved, threadprivate;
1064 char name[GFC_MAX_SYMBOL_LEN + 1];
1065 struct gfc_symbol *head;
1066 char binding_label[GFC_MAX_BINDING_LABEL_LEN + 1];
1067 int is_bind_c;
1068 }
1069 gfc_common_head;
1070
1071 #define gfc_get_common_head() gfc_getmem(sizeof(gfc_common_head))
1072
1073
1074 /* A list of all the alternate entry points for a procedure. */
1075
1076 typedef struct gfc_entry_list
1077 {
1078 /* The symbol for this entry point. */
1079 gfc_symbol *sym;
1080 /* The zero-based id of this entry point. */
1081 int id;
1082 /* The LABEL_EXPR marking this entry point. */
1083 tree label;
1084 /* The nest item in the list. */
1085 struct gfc_entry_list *next;
1086 }
1087 gfc_entry_list;
1088
1089 #define gfc_get_entry_list() \
1090 (gfc_entry_list *) gfc_getmem(sizeof(gfc_entry_list))
1091
1092 /* Within a namespace, symbols are pointed to by symtree nodes that
1093 are linked together in a balanced binary tree. There can be
1094 several symtrees pointing to the same symbol node via USE
1095 statements. */
1096
1097 typedef struct gfc_symtree
1098 {
1099 BBT_HEADER (gfc_symtree);
1100 const char *name;
1101 int ambiguous;
1102 union
1103 {
1104 gfc_symbol *sym; /* Symbol associated with this node */
1105 gfc_user_op *uop;
1106 gfc_common_head *common;
1107 }
1108 n;
1109
1110 }
1111 gfc_symtree;
1112
1113 /* A linked list of derived types in the namespace. */
1114 typedef struct gfc_dt_list
1115 {
1116 struct gfc_symbol *derived;
1117 struct gfc_dt_list *next;
1118 }
1119 gfc_dt_list;
1120
1121 #define gfc_get_dt_list() gfc_getmem(sizeof(gfc_dt_list))
1122
1123 /* A list of all derived types. */
1124 extern gfc_dt_list *gfc_derived_types;
1125
1126 /* A namespace describes the contents of procedure, module or
1127 interface block. */
1128 /* ??? Anything else use these? */
1129
1130 typedef struct gfc_namespace
1131 {
1132 /* Tree containing all the symbols in this namespace. */
1133 gfc_symtree *sym_root;
1134 /* Tree containing all the user-defined operators in the namespace. */
1135 gfc_symtree *uop_root;
1136 /* Tree containing all the common blocks. */
1137 gfc_symtree *common_root;
1138
1139 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1140 int set_flag[GFC_LETTERS];
1141 /* Keeps track of the implicit types associated with the letters. */
1142 gfc_typespec default_type[GFC_LETTERS];
1143
1144 /* If this is a namespace of a procedure, this points to the procedure. */
1145 struct gfc_symbol *proc_name;
1146 /* If this is the namespace of a unit which contains executable
1147 code, this points to it. */
1148 struct gfc_code *code;
1149
1150 /* Points to the equivalences set up in this namespace. */
1151 struct gfc_equiv *equiv;
1152
1153 /* Points to the equivalence groups produced by trans_common. */
1154 struct gfc_equiv_list *equiv_lists;
1155
1156 gfc_interface *operator[GFC_INTRINSIC_OPS];
1157
1158 /* Points to the parent namespace, i.e. the namespace of a module or
1159 procedure in which the procedure belonging to this namespace is
1160 contained. The parent namespace points to this namespace either
1161 directly via CONTAINED, or indirectly via the chain built by
1162 SIBLING. */
1163 struct gfc_namespace *parent;
1164 /* CONTAINED points to the first contained namespace. Sibling
1165 namespaces are chained via SIBLING. */
1166 struct gfc_namespace *contained, *sibling;
1167
1168 gfc_common_head blank_common;
1169 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1170
1171 gfc_st_label *st_labels;
1172 /* This list holds information about all the data initializers in
1173 this namespace. */
1174 struct gfc_data *data;
1175
1176 gfc_charlen *cl_list;
1177
1178 int save_all, seen_save, seen_implicit_none;
1179
1180 /* Normally we don't need to refcount namespaces. However when we read
1181 a module containing a function with multiple entry points, this
1182 will appear as several functions with the same formal namespace. */
1183 int refs;
1184
1185 /* A list of all alternate entry points to this procedure (or NULL). */
1186 gfc_entry_list *entries;
1187
1188 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1189 int is_block_data;
1190
1191 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1192 int has_import_set;
1193 }
1194 gfc_namespace;
1195
1196 extern gfc_namespace *gfc_current_ns;
1197
1198 /* Global symbols are symbols of global scope. Currently we only use
1199 this to detect collisions already when parsing.
1200 TODO: Extend to verify procedure calls. */
1201
1202 typedef struct gfc_gsymbol
1203 {
1204 BBT_HEADER(gfc_gsymbol);
1205
1206 const char *name;
1207 const char *sym_name;
1208 const char *mod_name;
1209 const char *binding_label;
1210 enum { GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1211 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA } type;
1212
1213 int defined, used;
1214 locus where;
1215 }
1216 gfc_gsymbol;
1217
1218 extern gfc_gsymbol *gfc_gsym_root;
1219
1220 /* Information on interfaces being built. */
1221 typedef struct
1222 {
1223 interface_type type;
1224 gfc_symbol *sym;
1225 gfc_namespace *ns;
1226 gfc_user_op *uop;
1227 gfc_intrinsic_op op;
1228 }
1229 gfc_interface_info;
1230
1231 extern gfc_interface_info current_interface;
1232
1233
1234 /* Array reference. */
1235 typedef struct gfc_array_ref
1236 {
1237 ar_type type;
1238 int dimen; /* # of components in the reference */
1239 locus where;
1240 gfc_array_spec *as;
1241
1242 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1243 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1244 *stride[GFC_MAX_DIMENSIONS];
1245
1246 enum
1247 { DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_UNKNOWN }
1248 dimen_type[GFC_MAX_DIMENSIONS];
1249
1250 struct gfc_expr *offset;
1251 }
1252 gfc_array_ref;
1253
1254 #define gfc_get_array_ref() gfc_getmem(sizeof(gfc_array_ref))
1255
1256
1257 /* Component reference nodes. A variable is stored as an expression
1258 node that points to the base symbol. After that, a singly linked
1259 list of component reference nodes gives the variable's complete
1260 resolution. The array_ref component may be present and comes
1261 before the component component. */
1262
1263 typedef enum
1264 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING }
1265 ref_type;
1266
1267 typedef struct gfc_ref
1268 {
1269 ref_type type;
1270
1271 union
1272 {
1273 struct gfc_array_ref ar;
1274
1275 struct
1276 {
1277 gfc_component *component;
1278 gfc_symbol *sym;
1279 }
1280 c;
1281
1282 struct
1283 {
1284 struct gfc_expr *start, *end; /* Substring */
1285 gfc_charlen *length;
1286 }
1287 ss;
1288
1289 }
1290 u;
1291
1292 struct gfc_ref *next;
1293 }
1294 gfc_ref;
1295
1296 #define gfc_get_ref() gfc_getmem(sizeof(gfc_ref))
1297
1298
1299 /* Structures representing intrinsic symbols and their arguments lists. */
1300 typedef struct gfc_intrinsic_arg
1301 {
1302 char name[GFC_MAX_SYMBOL_LEN + 1];
1303
1304 gfc_typespec ts;
1305 int optional;
1306 gfc_actual_arglist *actual;
1307
1308 struct gfc_intrinsic_arg *next;
1309
1310 }
1311 gfc_intrinsic_arg;
1312
1313
1314 /* Specifies the various kinds of check functions used to verify the
1315 argument lists of intrinsic functions. fX with X an integer refer
1316 to check functions of intrinsics with X arguments. f1m is used for
1317 the MAX and MIN intrinsics which can have an arbitrary number of
1318 arguments, f3ml is used for the MINLOC and MAXLOC intrinsics as
1319 these have special semantics. */
1320
1321 typedef union
1322 {
1323 try (*f0)(void);
1324 try (*f1)(struct gfc_expr *);
1325 try (*f1m)(gfc_actual_arglist *);
1326 try (*f2)(struct gfc_expr *, struct gfc_expr *);
1327 try (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1328 try (*f3ml)(gfc_actual_arglist *);
1329 try (*f3red)(gfc_actual_arglist *);
1330 try (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1331 struct gfc_expr *);
1332 try (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1333 struct gfc_expr *, struct gfc_expr *);
1334 }
1335 gfc_check_f;
1336
1337 /* Like gfc_check_f, these specify the type of the simplification
1338 function associated with an intrinsic. The fX are just like in
1339 gfc_check_f. cc is used for type conversion functions. */
1340
1341 typedef union
1342 {
1343 struct gfc_expr *(*f0)(void);
1344 struct gfc_expr *(*f1)(struct gfc_expr *);
1345 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
1346 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
1347 struct gfc_expr *);
1348 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
1349 struct gfc_expr *, struct gfc_expr *);
1350 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
1351 struct gfc_expr *, struct gfc_expr *,
1352 struct gfc_expr *);
1353 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
1354 }
1355 gfc_simplify_f;
1356
1357 /* Again like gfc_check_f, these specify the type of the resolution
1358 function associated with an intrinsic. The fX are just like in
1359 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
1360
1361 typedef union
1362 {
1363 void (*f0)(struct gfc_expr *);
1364 void (*f1)(struct gfc_expr *, struct gfc_expr *);
1365 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
1366 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1367 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1368 struct gfc_expr *);
1369 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1370 struct gfc_expr *, struct gfc_expr *);
1371 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
1372 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
1373 void (*s1)(struct gfc_code *);
1374 }
1375 gfc_resolve_f;
1376
1377
1378 typedef struct gfc_intrinsic_sym
1379 {
1380 const char *name, *lib_name;
1381 gfc_intrinsic_arg *formal;
1382 gfc_typespec ts;
1383 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
1384 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1;
1385
1386 int standard;
1387
1388 gfc_simplify_f simplify;
1389 gfc_check_f check;
1390 gfc_resolve_f resolve;
1391 struct gfc_intrinsic_sym *specific_head, *next;
1392 gfc_isym_id id;
1393
1394 }
1395 gfc_intrinsic_sym;
1396
1397
1398 /* Expression nodes. The expression node types deserve explanations,
1399 since the last couple can be easily misconstrued:
1400
1401 EXPR_OP Operator node pointing to one or two other nodes
1402 EXPR_FUNCTION Function call, symbol points to function's name
1403 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
1404 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
1405 which expresses structure, array and substring refs.
1406 EXPR_NULL The NULL pointer value (which also has a basic type).
1407 EXPR_SUBSTRING A substring of a constant string
1408 EXPR_STRUCTURE A structure constructor
1409 EXPR_ARRAY An array constructor. */
1410
1411 #include <gmp.h>
1412 #include <mpfr.h>
1413 #define GFC_RND_MODE GMP_RNDN
1414
1415 typedef struct gfc_expr
1416 {
1417 expr_t expr_type;
1418
1419 gfc_typespec ts; /* These two refer to the overall expression */
1420
1421 int rank;
1422 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
1423
1424 /* Nonnull for functions and structure constructors */
1425 gfc_symtree *symtree;
1426
1427 gfc_ref *ref;
1428
1429 locus where;
1430
1431 /* True if the expression is a call to a function that returns an array,
1432 and if we have decided not to allocate temporary data for that array. */
1433 unsigned int inline_noncopying_intrinsic : 1, is_boz : 1;
1434
1435 /* Used to quickly find a given constructor by its offset. */
1436 splay_tree con_by_offset;
1437
1438 /* If an expression comes from a Hollerith constant or compile-time
1439 evaluation of a transfer statement, it may have a prescribed target-
1440 memory representation, and these cannot always be backformed from
1441 the value. */
1442 struct
1443 {
1444 int length;
1445 char *string;
1446 }
1447 representation;
1448
1449 union
1450 {
1451 int logical;
1452
1453 mpz_t integer;
1454
1455 mpfr_t real;
1456
1457 struct
1458 {
1459 mpfr_t r, i;
1460 }
1461 complex;
1462
1463 struct
1464 {
1465 gfc_intrinsic_op operator;
1466 gfc_user_op *uop;
1467 struct gfc_expr *op1, *op2;
1468 }
1469 op;
1470
1471 struct
1472 {
1473 gfc_actual_arglist *actual;
1474 const char *name; /* Points to the ultimate name of the function */
1475 gfc_intrinsic_sym *isym;
1476 gfc_symbol *esym;
1477 }
1478 function;
1479
1480 struct
1481 {
1482 int length;
1483 char *string;
1484 }
1485 character;
1486
1487 struct gfc_constructor *constructor;
1488 }
1489 value;
1490
1491 }
1492 gfc_expr;
1493
1494
1495 #define gfc_get_shape(rank) ((mpz_t *) gfc_getmem((rank)*sizeof(mpz_t)))
1496
1497 /* Structures for information associated with different kinds of
1498 numbers. The first set of integer parameters define all there is
1499 to know about a particular kind. The rest of the elements are
1500 computed from the first elements. */
1501
1502 typedef struct
1503 {
1504 /* Values really representable by the target. */
1505 mpz_t huge, pedantic_min_int, min_int;
1506
1507 int kind, radix, digits, bit_size, range;
1508
1509 /* True if the C type of the given name maps to this precision.
1510 Note that more than one bit can be set. */
1511 unsigned int c_char : 1;
1512 unsigned int c_short : 1;
1513 unsigned int c_int : 1;
1514 unsigned int c_long : 1;
1515 unsigned int c_long_long : 1;
1516 }
1517 gfc_integer_info;
1518
1519 extern gfc_integer_info gfc_integer_kinds[];
1520
1521
1522 typedef struct
1523 {
1524 int kind, bit_size;
1525
1526 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
1527 unsigned int c_bool : 1;
1528 }
1529 gfc_logical_info;
1530
1531 extern gfc_logical_info gfc_logical_kinds[];
1532
1533
1534 typedef struct
1535 {
1536 mpfr_t epsilon, huge, tiny, subnormal;
1537 int kind, radix, digits, min_exponent, max_exponent;
1538 int range, precision;
1539
1540 /* The precision of the type as reported by GET_MODE_PRECISION. */
1541 int mode_precision;
1542
1543 /* True if the C type of the given name maps to this precision.
1544 Note that more than one bit can be set. */
1545 unsigned int c_float : 1;
1546 unsigned int c_double : 1;
1547 unsigned int c_long_double : 1;
1548 }
1549 gfc_real_info;
1550
1551 extern gfc_real_info gfc_real_kinds[];
1552
1553
1554 /* Equivalence structures. Equivalent lvalues are linked along the
1555 *eq pointer, equivalence sets are strung along the *next node. */
1556 typedef struct gfc_equiv
1557 {
1558 struct gfc_equiv *next, *eq;
1559 gfc_expr *expr;
1560 const char *module;
1561 int used;
1562 }
1563 gfc_equiv;
1564
1565 #define gfc_get_equiv() gfc_getmem(sizeof(gfc_equiv))
1566
1567 /* Holds a single equivalence member after processing. */
1568 typedef struct gfc_equiv_info
1569 {
1570 gfc_symbol *sym;
1571 HOST_WIDE_INT offset;
1572 HOST_WIDE_INT length;
1573 struct gfc_equiv_info *next;
1574 } gfc_equiv_info;
1575
1576 /* Holds equivalence groups, after they have been processed. */
1577 typedef struct gfc_equiv_list
1578 {
1579 gfc_equiv_info *equiv;
1580 struct gfc_equiv_list *next;
1581 } gfc_equiv_list;
1582
1583 /* gfc_case stores the selector list of a case statement. The *low
1584 and *high pointers can point to the same expression in the case of
1585 a single value. If *high is NULL, the selection is from *low
1586 upwards, if *low is NULL the selection is *high downwards.
1587
1588 This structure has separate fields to allow single and double linked
1589 lists of CASEs at the same time. The singe linked list along the NEXT
1590 field is a list of cases for a single CASE label. The double linked
1591 list along the LEFT/RIGHT fields is used to detect overlap and to
1592 build a table of the cases for SELECT constructs with a CHARACTER
1593 case expression. */
1594
1595 typedef struct gfc_case
1596 {
1597 /* Where we saw this case. */
1598 locus where;
1599 int n;
1600
1601 /* Case range values. If (low == high), it's a single value. If one of
1602 the labels is NULL, it's an unbounded case. If both are NULL, this
1603 represents the default case. */
1604 gfc_expr *low, *high;
1605
1606 /* Next case label in the list of cases for a single CASE label. */
1607 struct gfc_case *next;
1608
1609 /* Used for detecting overlap, and for code generation. */
1610 struct gfc_case *left, *right;
1611
1612 /* True if this case label can never be matched. */
1613 int unreachable;
1614 }
1615 gfc_case;
1616
1617 #define gfc_get_case() gfc_getmem(sizeof(gfc_case))
1618
1619
1620 typedef struct
1621 {
1622 gfc_expr *var, *start, *end, *step;
1623 }
1624 gfc_iterator;
1625
1626 #define gfc_get_iterator() gfc_getmem(sizeof(gfc_iterator))
1627
1628
1629 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
1630
1631 typedef struct gfc_alloc
1632 {
1633 gfc_expr *expr;
1634 struct gfc_alloc *next;
1635 }
1636 gfc_alloc;
1637
1638 #define gfc_get_alloc() gfc_getmem(sizeof(gfc_alloc))
1639
1640
1641 typedef struct
1642 {
1643 gfc_expr *unit, *file, *status, *access, *form, *recl,
1644 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert;
1645 gfc_st_label *err;
1646 }
1647 gfc_open;
1648
1649
1650 typedef struct
1651 {
1652 gfc_expr *unit, *status, *iostat, *iomsg;
1653 gfc_st_label *err;
1654 }
1655 gfc_close;
1656
1657
1658 typedef struct
1659 {
1660 gfc_expr *unit, *iostat, *iomsg;
1661 gfc_st_label *err;
1662 }
1663 gfc_filepos;
1664
1665
1666 typedef struct
1667 {
1668 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
1669 *name, *access, *sequential, *direct, *form, *formatted,
1670 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
1671 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos;
1672
1673 gfc_st_label *err;
1674
1675 }
1676 gfc_inquire;
1677
1678
1679 typedef struct
1680 {
1681 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg;
1682
1683 gfc_symbol *namelist;
1684 /* A format_label of `format_asterisk' indicates the "*" format */
1685 gfc_st_label *format_label;
1686 gfc_st_label *err, *end, *eor;
1687
1688 locus eor_where, end_where, err_where;
1689 }
1690 gfc_dt;
1691
1692
1693 typedef struct gfc_forall_iterator
1694 {
1695 gfc_expr *var, *start, *end, *stride;
1696 struct gfc_forall_iterator *next;
1697 }
1698 gfc_forall_iterator;
1699
1700
1701 /* Executable statements that fill gfc_code structures. */
1702 typedef enum
1703 {
1704 EXEC_NOP = 1, EXEC_ASSIGN, EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN,
1705 EXEC_GOTO, EXEC_CALL, EXEC_ASSIGN_CALL, EXEC_RETURN, EXEC_ENTRY,
1706 EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
1707 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_WHILE, EXEC_SELECT,
1708 EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
1709 EXEC_ALLOCATE, EXEC_DEALLOCATE,
1710 EXEC_OPEN, EXEC_CLOSE,
1711 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
1712 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
1713 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
1714 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
1715 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
1716 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
1717 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
1718 EXEC_OMP_END_SINGLE
1719 }
1720 gfc_exec_op;
1721
1722 typedef struct gfc_code
1723 {
1724 gfc_exec_op op;
1725
1726 struct gfc_code *block, *next;
1727 locus loc;
1728
1729 gfc_st_label *here, *label, *label2, *label3;
1730 gfc_symtree *symtree;
1731 gfc_expr *expr, *expr2;
1732 /* A name isn't sufficient to identify a subroutine, we need the actual
1733 symbol for the interface definition.
1734 const char *sub_name; */
1735 gfc_symbol *resolved_sym;
1736
1737 union
1738 {
1739 gfc_actual_arglist *actual;
1740 gfc_case *case_list;
1741 gfc_iterator *iterator;
1742 gfc_alloc *alloc_list;
1743 gfc_open *open;
1744 gfc_close *close;
1745 gfc_filepos *filepos;
1746 gfc_inquire *inquire;
1747 gfc_dt *dt;
1748 gfc_forall_iterator *forall_iterator;
1749 struct gfc_code *whichloop;
1750 int stop_code;
1751 gfc_entry_list *entry;
1752 gfc_omp_clauses *omp_clauses;
1753 const char *omp_name;
1754 gfc_namelist *omp_namelist;
1755 bool omp_bool;
1756 }
1757 ext; /* Points to additional structures required by statement */
1758
1759 /* Backend_decl is used for cycle and break labels in do loops, and
1760 probably for other constructs as well, once we translate them. */
1761 tree backend_decl;
1762 }
1763 gfc_code;
1764
1765
1766 /* Storage for DATA statements. */
1767 typedef struct gfc_data_variable
1768 {
1769 gfc_expr *expr;
1770 gfc_iterator iter;
1771 struct gfc_data_variable *list, *next;
1772 }
1773 gfc_data_variable;
1774
1775
1776 typedef struct gfc_data_value
1777 {
1778 mpz_t repeat;
1779 gfc_expr *expr;
1780 struct gfc_data_value *next;
1781 }
1782 gfc_data_value;
1783
1784
1785 typedef struct gfc_data
1786 {
1787 gfc_data_variable *var;
1788 gfc_data_value *value;
1789 locus where;
1790
1791 struct gfc_data *next;
1792 }
1793 gfc_data;
1794
1795
1796 /* Structure for holding compile options */
1797 typedef struct
1798 {
1799 char *module_dir;
1800 gfc_source_form source_form;
1801 /* Maximum line lengths in fixed- and free-form source, respectively.
1802 When fixed_line_length or free_line_length are 0, the whole line is used,
1803 regardless of length.
1804
1805 If the user requests a fixed_line_length <7 then gfc_init_options()
1806 emits a fatal error. */
1807 int fixed_line_length;
1808 int free_line_length;
1809 /* Maximum number of continuation lines in fixed- and free-form source,
1810 respectively. */
1811 int max_continue_fixed;
1812 int max_continue_free;
1813 int max_identifier_length;
1814 int verbose;
1815
1816 int warn_aliasing;
1817 int warn_ampersand;
1818 int warn_conversion;
1819 int warn_implicit_interface;
1820 int warn_line_truncation;
1821 int warn_surprising;
1822 int warn_tabs;
1823 int warn_underflow;
1824 int warn_character_truncation;
1825 int max_errors;
1826
1827 int flag_all_intrinsics;
1828 int flag_default_double;
1829 int flag_default_integer;
1830 int flag_default_real;
1831 int flag_dollar_ok;
1832 int flag_underscoring;
1833 int flag_second_underscore;
1834 int flag_implicit_none;
1835 int flag_max_stack_var_size;
1836 int flag_range_check;
1837 int flag_pack_derived;
1838 int flag_repack_arrays;
1839 int flag_preprocessed;
1840 int flag_f2c;
1841 int flag_automatic;
1842 int flag_backslash;
1843 int flag_backtrace;
1844 int flag_allow_leading_underscore;
1845 int flag_dump_core;
1846 int flag_external_blas;
1847 int blas_matmul_limit;
1848 int flag_cray_pointer;
1849 int flag_d_lines;
1850 int flag_openmp;
1851 int flag_sign_zero;
1852 int flag_module_private;
1853 int flag_recursive;
1854 int flag_init_local_zero;
1855 int flag_init_integer;
1856 int flag_init_integer_value;
1857 int flag_init_real;
1858 int flag_init_logical;
1859 int flag_init_character;
1860 char flag_init_character_value;
1861
1862 int fpe;
1863
1864 int warn_std;
1865 int allow_std;
1866 int warn_nonstd_intrinsics;
1867 int fshort_enums;
1868 int convert;
1869 int record_marker;
1870 int max_subrecord_length;
1871 }
1872 gfc_option_t;
1873
1874 extern gfc_option_t gfc_option;
1875
1876 /* Constructor nodes for array and structure constructors. */
1877 typedef struct gfc_constructor
1878 {
1879 gfc_expr *expr;
1880 gfc_iterator *iterator;
1881 locus where;
1882 struct gfc_constructor *next;
1883 struct
1884 {
1885 mpz_t offset; /* Record the offset of array element which appears in
1886 data statement like "data a(5)/4/". */
1887 gfc_component *component; /* Record the component being initialized. */
1888 }
1889 n;
1890 mpz_t repeat; /* Record the repeat number of initial values in data
1891 statement like "data a/5*10/". */
1892 }
1893 gfc_constructor;
1894
1895
1896 typedef struct iterator_stack
1897 {
1898 gfc_symtree *variable;
1899 mpz_t value;
1900 struct iterator_stack *prev;
1901 }
1902 iterator_stack;
1903 extern iterator_stack *iter_stack;
1904
1905 /************************ Function prototypes *************************/
1906
1907 /* decl.c */
1908 bool gfc_in_match_data (void);
1909
1910 /* scanner.c */
1911 void gfc_scanner_done_1 (void);
1912 void gfc_scanner_init_1 (void);
1913
1914 void gfc_add_include_path (const char *, bool);
1915 void gfc_add_intrinsic_modules_path (const char *);
1916 void gfc_release_include_path (void);
1917 FILE *gfc_open_included_file (const char *, bool, bool);
1918 FILE *gfc_open_intrinsic_module (const char *);
1919
1920 int gfc_at_end (void);
1921 int gfc_at_eof (void);
1922 int gfc_at_bol (void);
1923 int gfc_at_eol (void);
1924 void gfc_advance_line (void);
1925 int gfc_check_include (void);
1926 int gfc_define_undef_line (void);
1927
1928 void gfc_skip_comments (void);
1929 int gfc_next_char_literal (int);
1930 int gfc_next_char (void);
1931 int gfc_peek_char (void);
1932 void gfc_error_recovery (void);
1933 void gfc_gobble_whitespace (void);
1934 try gfc_new_file (void);
1935 const char * gfc_read_orig_filename (const char *, const char **);
1936
1937 extern gfc_source_form gfc_current_form;
1938 extern const char *gfc_source_file;
1939 extern locus gfc_current_locus;
1940
1941 void gfc_start_source_files (void);
1942 void gfc_end_source_files (void);
1943
1944 /* misc.c */
1945 void *gfc_getmem (size_t) ATTRIBUTE_MALLOC;
1946 void gfc_free (void *);
1947 int gfc_terminal_width (void);
1948 void gfc_clear_ts (gfc_typespec *);
1949 FILE *gfc_open_file (const char *);
1950 const char *gfc_basic_typename (bt);
1951 const char *gfc_typename (gfc_typespec *);
1952 const char *gfc_op2string (gfc_intrinsic_op);
1953 const char *gfc_code2string (const mstring *, int);
1954 int gfc_string2code (const mstring *, const char *);
1955 const char *gfc_intent_string (sym_intent);
1956
1957 void gfc_init_1 (void);
1958 void gfc_init_2 (void);
1959 void gfc_done_1 (void);
1960 void gfc_done_2 (void);
1961
1962 int get_c_kind (const char *, CInteropKind_t *);
1963
1964 /* options.c */
1965 unsigned int gfc_init_options (unsigned int, const char **);
1966 int gfc_handle_option (size_t, const char *, int);
1967 bool gfc_post_options (const char **);
1968
1969 /* iresolve.c */
1970 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
1971
1972 /* error.c */
1973
1974 typedef struct gfc_error_buf
1975 {
1976 int flag;
1977 size_t allocated, index;
1978 char *message;
1979 } gfc_error_buf;
1980
1981 void gfc_error_init_1 (void);
1982 void gfc_buffer_error (int);
1983
1984 void gfc_warning (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1985 void gfc_warning_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1986 void gfc_clear_warning (void);
1987 void gfc_warning_check (void);
1988
1989 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1990 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
1991 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1992 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
1993 void gfc_clear_error (void);
1994 int gfc_error_check (void);
1995 int gfc_error_flag_test (void);
1996
1997 notification gfc_notification_std (int);
1998 try gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
1999
2000 /* A general purpose syntax error. */
2001 #define gfc_syntax_error(ST) \
2002 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2003
2004 void gfc_push_error (gfc_error_buf *);
2005 void gfc_pop_error (gfc_error_buf *);
2006 void gfc_free_error (gfc_error_buf *);
2007
2008 void gfc_status (const char *, ...) ATTRIBUTE_PRINTF_1;
2009 void gfc_status_char (char);
2010
2011 void gfc_get_errors (int *, int *);
2012
2013 /* arith.c */
2014 void gfc_arith_init_1 (void);
2015 void gfc_arith_done_1 (void);
2016 gfc_expr *gfc_enum_initializer (gfc_expr *, locus);
2017 arith gfc_check_integer_range (mpz_t p, int kind);
2018
2019 /* trans-types.c */
2020 try gfc_validate_c_kind (gfc_typespec *);
2021 try gfc_check_any_c_kind (gfc_typespec *);
2022 int gfc_validate_kind (bt, int, bool);
2023 extern int gfc_index_integer_kind;
2024 extern int gfc_default_integer_kind;
2025 extern int gfc_max_integer_kind;
2026 extern int gfc_default_real_kind;
2027 extern int gfc_default_double_kind;
2028 extern int gfc_default_character_kind;
2029 extern int gfc_default_logical_kind;
2030 extern int gfc_default_complex_kind;
2031 extern int gfc_c_int_kind;
2032 extern int gfc_intio_kind;
2033 extern int gfc_charlen_int_kind;
2034 extern int gfc_numeric_storage_size;
2035 extern int gfc_character_storage_size;
2036
2037 /* symbol.c */
2038 void gfc_clear_new_implicit (void);
2039 try gfc_add_new_implicit_range (int, int);
2040 try gfc_merge_new_implicit (gfc_typespec *);
2041 void gfc_set_implicit_none (void);
2042 void gfc_check_function_type (gfc_namespace *);
2043 bool gfc_is_intrinsic_typename (const char *);
2044
2045 gfc_typespec *gfc_get_default_type (gfc_symbol *, gfc_namespace *);
2046 try gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2047
2048 void gfc_set_component_attr (gfc_component *, symbol_attribute *);
2049 void gfc_get_component_attr (symbol_attribute *, gfc_component *);
2050
2051 void gfc_set_sym_referenced (gfc_symbol *);
2052
2053 try gfc_add_attribute (symbol_attribute *, locus *);
2054 try gfc_add_allocatable (symbol_attribute *, locus *);
2055 try gfc_add_dimension (symbol_attribute *, const char *, locus *);
2056 try gfc_add_external (symbol_attribute *, locus *);
2057 try gfc_add_intrinsic (symbol_attribute *, locus *);
2058 try gfc_add_optional (symbol_attribute *, locus *);
2059 try gfc_add_pointer (symbol_attribute *, locus *);
2060 try gfc_add_cray_pointer (symbol_attribute *, locus *);
2061 try gfc_add_cray_pointee (symbol_attribute *, locus *);
2062 try gfc_mod_pointee_as (gfc_array_spec *);
2063 try gfc_add_protected (symbol_attribute *, const char *, locus *);
2064 try gfc_add_result (symbol_attribute *, const char *, locus *);
2065 try gfc_add_save (symbol_attribute *, const char *, locus *);
2066 try gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
2067 try gfc_add_saved_common (symbol_attribute *, locus *);
2068 try gfc_add_target (symbol_attribute *, locus *);
2069 try gfc_add_dummy (symbol_attribute *, const char *, locus *);
2070 try gfc_add_generic (symbol_attribute *, const char *, locus *);
2071 try gfc_add_common (symbol_attribute *, locus *);
2072 try gfc_add_in_common (symbol_attribute *, const char *, locus *);
2073 try gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
2074 try gfc_add_data (symbol_attribute *, const char *, locus *);
2075 try gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
2076 try gfc_add_sequence (symbol_attribute *, const char *, locus *);
2077 try gfc_add_elemental (symbol_attribute *, locus *);
2078 try gfc_add_pure (symbol_attribute *, locus *);
2079 try gfc_add_recursive (symbol_attribute *, locus *);
2080 try gfc_add_function (symbol_attribute *, const char *, locus *);
2081 try gfc_add_subroutine (symbol_attribute *, const char *, locus *);
2082 try gfc_add_volatile (symbol_attribute *, const char *, locus *);
2083 try gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
2084
2085 try gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
2086 try gfc_add_is_bind_c(symbol_attribute *, const char *, locus *, int);
2087 try gfc_add_value (symbol_attribute *, const char *, locus *);
2088 try gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
2089 try gfc_add_entry (symbol_attribute *, const char *, locus *);
2090 try gfc_add_procedure (symbol_attribute *, procedure_type,
2091 const char *, locus *);
2092 try gfc_add_intent (symbol_attribute *, sym_intent, locus *);
2093 try gfc_add_explicit_interface (gfc_symbol *, ifsrc,
2094 gfc_formal_arglist *, locus *);
2095 try gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
2096
2097 void gfc_clear_attr (symbol_attribute *);
2098 try gfc_missing_attr (symbol_attribute *, locus *);
2099 try gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
2100
2101 try gfc_add_component (gfc_symbol *, const char *, gfc_component **);
2102 gfc_symbol *gfc_use_derived (gfc_symbol *);
2103 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
2104 gfc_component *gfc_find_component (gfc_symbol *, const char *);
2105
2106 gfc_st_label *gfc_get_st_label (int);
2107 void gfc_free_st_label (gfc_st_label *);
2108 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
2109 try gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
2110
2111 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
2112
2113 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
2114 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
2115 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
2116 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
2117 gfc_user_op *gfc_get_uop (const char *);
2118 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
2119 void gfc_free_symbol (gfc_symbol *);
2120 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
2121 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
2122 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
2123 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
2124 try verify_c_interop (gfc_typespec *, const char *name, locus *where);
2125 try verify_c_interop_param (gfc_symbol *);
2126 try verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
2127 try verify_bind_c_derived_type (gfc_symbol *);
2128 try verify_com_block_vars_c_interop (gfc_common_head *);
2129 void generate_isocbinding_symbol (const char *, iso_c_binding_symbol, const char *);
2130 gfc_symbol *get_iso_c_sym (gfc_symbol *, char *, char *, int);
2131 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **);
2132 int gfc_get_ha_symbol (const char *, gfc_symbol **);
2133 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
2134
2135 int gfc_symbols_could_alias (gfc_symbol *, gfc_symbol *);
2136
2137 void gfc_undo_symbols (void);
2138 void gfc_commit_symbols (void);
2139 void gfc_commit_symbol (gfc_symbol *);
2140 void gfc_free_namespace (gfc_namespace *);
2141
2142 void gfc_symbol_init_2 (void);
2143 void gfc_symbol_done_2 (void);
2144
2145 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
2146 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
2147 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
2148 void gfc_save_all (gfc_namespace *);
2149
2150 void gfc_symbol_state (void);
2151
2152 gfc_gsymbol *gfc_get_gsymbol (const char *);
2153 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
2154
2155 void copy_formal_args (gfc_symbol *dest, gfc_symbol *src);
2156
2157 /* intrinsic.c */
2158 extern int gfc_init_expr;
2159
2160 /* Given a symbol that we have decided is intrinsic, mark it as such
2161 by placing it into a special module that is otherwise impossible to
2162 read or write. */
2163
2164 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
2165
2166 void gfc_intrinsic_init_1 (void);
2167 void gfc_intrinsic_done_1 (void);
2168
2169 char gfc_type_letter (bt);
2170 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
2171 try gfc_convert_type (gfc_expr *, gfc_typespec *, int);
2172 try gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
2173 int gfc_generic_intrinsic (const char *);
2174 int gfc_specific_intrinsic (const char *);
2175 int gfc_intrinsic_name (const char *, int);
2176 int gfc_intrinsic_actual_ok (const char *, const bool);
2177 gfc_intrinsic_sym *gfc_find_function (const char *);
2178 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
2179
2180 match gfc_intrinsic_func_interface (gfc_expr *, int);
2181 match gfc_intrinsic_sub_interface (gfc_code *, int);
2182
2183 /* match.c -- FIXME */
2184 void gfc_free_iterator (gfc_iterator *, int);
2185 void gfc_free_forall_iterator (gfc_forall_iterator *);
2186 void gfc_free_alloc_list (gfc_alloc *);
2187 void gfc_free_namelist (gfc_namelist *);
2188 void gfc_free_equiv (gfc_equiv *);
2189 void gfc_free_data (gfc_data *);
2190 void gfc_free_case_list (gfc_case *);
2191
2192 /* matchexp.c -- FIXME too? */
2193 gfc_expr *gfc_get_parentheses (gfc_expr *);
2194
2195 /* openmp.c */
2196 void gfc_free_omp_clauses (gfc_omp_clauses *);
2197 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
2198 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *);
2199 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
2200 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
2201
2202 /* expr.c */
2203 void gfc_free_actual_arglist (gfc_actual_arglist *);
2204 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
2205 const char *gfc_extract_int (gfc_expr *, int *);
2206 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
2207 bool is_subref_array (gfc_expr *);
2208
2209 gfc_expr *gfc_build_conversion (gfc_expr *);
2210 void gfc_free_ref_list (gfc_ref *);
2211 void gfc_type_convert_binary (gfc_expr *);
2212 int gfc_is_constant_expr (gfc_expr *);
2213 try gfc_simplify_expr (gfc_expr *, int);
2214 int gfc_has_vector_index (gfc_expr *);
2215
2216 gfc_expr *gfc_get_expr (void);
2217 void gfc_free_expr (gfc_expr *);
2218 void gfc_replace_expr (gfc_expr *, gfc_expr *);
2219 gfc_expr *gfc_int_expr (int);
2220 gfc_expr *gfc_logical_expr (int, locus *);
2221 mpz_t *gfc_copy_shape (mpz_t *, int);
2222 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
2223 gfc_expr *gfc_copy_expr (gfc_expr *);
2224
2225 try gfc_specification_expr (gfc_expr *);
2226
2227 int gfc_numeric_ts (gfc_typespec *);
2228 int gfc_kind_max (gfc_expr *, gfc_expr *);
2229
2230 try gfc_check_conformance (const char *, gfc_expr *, gfc_expr *);
2231 try gfc_check_assign (gfc_expr *, gfc_expr *, int);
2232 try gfc_check_pointer_assign (gfc_expr *, gfc_expr *);
2233 try gfc_check_assign_symbol (gfc_symbol *, gfc_expr *);
2234
2235 gfc_expr *gfc_default_initializer (gfc_typespec *);
2236 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
2237
2238 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
2239 bool (*)(gfc_expr *, gfc_symbol *, int*),
2240 int);
2241 void gfc_expr_set_symbols_referenced (gfc_expr *);
2242
2243 /* st.c */
2244 extern gfc_code new_st;
2245
2246 void gfc_clear_new_st (void);
2247 gfc_code *gfc_get_code (void);
2248 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
2249 void gfc_free_statement (gfc_code *);
2250 void gfc_free_statements (gfc_code *);
2251
2252 /* resolve.c */
2253 try gfc_resolve_expr (gfc_expr *);
2254 void gfc_resolve (gfc_namespace *);
2255 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
2256 int gfc_impure_variable (gfc_symbol *);
2257 int gfc_pure (gfc_symbol *);
2258 int gfc_elemental (gfc_symbol *);
2259 try gfc_resolve_iterator (gfc_iterator *, bool);
2260 try find_forall_index (gfc_expr *, gfc_symbol *, int);
2261 try gfc_resolve_index (gfc_expr *, int);
2262 try gfc_resolve_dim_arg (gfc_expr *);
2263 int gfc_is_formal_arg (void);
2264 void gfc_resolve_substring_charlen (gfc_expr *);
2265 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
2266
2267
2268 /* array.c */
2269 void gfc_free_array_spec (gfc_array_spec *);
2270 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
2271
2272 try gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
2273 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
2274 try gfc_resolve_array_spec (gfc_array_spec *, int);
2275
2276 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
2277
2278 gfc_expr *gfc_start_constructor (bt, int, locus *);
2279 void gfc_append_constructor (gfc_expr *, gfc_expr *);
2280 void gfc_free_constructor (gfc_constructor *);
2281 void gfc_simplify_iterator_var (gfc_expr *);
2282 try gfc_expand_constructor (gfc_expr *);
2283 int gfc_constant_ac (gfc_expr *);
2284 int gfc_expanded_ac (gfc_expr *);
2285 void gfc_resolve_character_array_constructor (gfc_expr *);
2286 try gfc_resolve_array_constructor (gfc_expr *);
2287 try gfc_check_constructor_type (gfc_expr *);
2288 try gfc_check_iter_variable (gfc_expr *);
2289 try gfc_check_constructor (gfc_expr *, try (*)(gfc_expr *));
2290 gfc_constructor *gfc_copy_constructor (gfc_constructor *);
2291 gfc_expr *gfc_get_array_element (gfc_expr *, int);
2292 try gfc_array_size (gfc_expr *, mpz_t *);
2293 try gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
2294 try gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
2295 gfc_array_ref *gfc_find_array_ref (gfc_expr *);
2296 void gfc_insert_constructor (gfc_expr *, gfc_constructor *);
2297 gfc_constructor *gfc_get_constructor (void);
2298 tree gfc_conv_array_initializer (tree type, gfc_expr *);
2299 try spec_size (gfc_array_spec *, mpz_t *);
2300 try spec_dimen_size (gfc_array_spec *, int, mpz_t *);
2301 int gfc_is_compile_time_shape (gfc_array_spec *);
2302
2303 /* interface.c -- FIXME: some of these should be in symbol.c */
2304 void gfc_free_interface (gfc_interface *);
2305 int gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
2306 int gfc_compare_types (gfc_typespec *, gfc_typespec *);
2307 void gfc_check_interfaces (gfc_namespace *);
2308 void gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
2309 gfc_symbol *gfc_search_interface (gfc_interface *, int,
2310 gfc_actual_arglist **);
2311 try gfc_extend_expr (gfc_expr *);
2312 void gfc_free_formal_arglist (gfc_formal_arglist *);
2313 try gfc_extend_assign (gfc_code *, gfc_namespace *);
2314 try gfc_add_interface (gfc_symbol *);
2315 gfc_interface *gfc_current_interface_head (void);
2316 void gfc_set_current_interface_head (gfc_interface *);
2317
2318 /* io.c */
2319 extern gfc_st_label format_asterisk;
2320
2321 void gfc_free_open (gfc_open *);
2322 try gfc_resolve_open (gfc_open *);
2323 void gfc_free_close (gfc_close *);
2324 try gfc_resolve_close (gfc_close *);
2325 void gfc_free_filepos (gfc_filepos *);
2326 try gfc_resolve_filepos (gfc_filepos *);
2327 void gfc_free_inquire (gfc_inquire *);
2328 try gfc_resolve_inquire (gfc_inquire *);
2329 void gfc_free_dt (gfc_dt *);
2330 try gfc_resolve_dt (gfc_dt *);
2331
2332 /* module.c */
2333 void gfc_module_init_2 (void);
2334 void gfc_module_done_2 (void);
2335 void gfc_dump_module (const char *, int);
2336 bool gfc_check_access (gfc_access, gfc_access);
2337
2338 /* primary.c */
2339 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
2340 symbol_attribute gfc_expr_attr (gfc_expr *);
2341 match gfc_match_rvalue (gfc_expr **);
2342
2343 /* trans.c */
2344 void gfc_generate_code (gfc_namespace *);
2345 void gfc_generate_module_code (gfc_namespace *);
2346
2347 /* bbt.c */
2348 typedef int (*compare_fn) (void *, void *);
2349 void gfc_insert_bbt (void *, void *, compare_fn);
2350 void gfc_delete_bbt (void *, void *, compare_fn);
2351
2352 /* dump-parse-tree.c */
2353 void gfc_show_actual_arglist (gfc_actual_arglist *);
2354 void gfc_show_array_ref (gfc_array_ref *);
2355 void gfc_show_array_spec (gfc_array_spec *);
2356 void gfc_show_attr (symbol_attribute *);
2357 void gfc_show_code (int, gfc_code *);
2358 void gfc_show_components (gfc_symbol *);
2359 void gfc_show_constructor (gfc_constructor *);
2360 void gfc_show_equiv (gfc_equiv *);
2361 void gfc_show_expr (gfc_expr *);
2362 void gfc_show_expr_n (const char *, gfc_expr *);
2363 void gfc_show_namelist (gfc_namelist *);
2364 void gfc_show_namespace (gfc_namespace *);
2365 void gfc_show_ref (gfc_ref *);
2366 void gfc_show_symbol (gfc_symbol *);
2367 void gfc_show_symbol_n (const char *, gfc_symbol *);
2368 void gfc_show_typespec (gfc_typespec *);
2369
2370 /* parse.c */
2371 try gfc_parse_file (void);
2372 void gfc_global_used (gfc_gsymbol *, locus *);
2373
2374 /* dependency.c */
2375 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
2376
2377 #endif /* GCC_GFORTRAN_H */