1/* gfortran header file
2 Copyright (C) 2000-2022 Free Software Foundation, Inc.
3 Contributed by Andy Vaught
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 3, or (at your option) any later
10version.
11
12GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15for more details.
16
17You should have received a copy of the GNU General Public License
18along with GCC; see the file COPYING3. If not see
19<http://www.gnu.org/licenses/>. */
20
21#ifndef GCC_GFORTRAN_H
22#define GCC_GFORTRAN_H
23
24/* It's probably insane to have this large of a header file, but it
25 seemed like everything had to be recompiled anyway when a change
26 was made to a header file, and there were ordering issues with
27 multiple header files. Besides, Microsoft's winnt.h was 250k last
28 time I looked, so by comparison this is perfectly reasonable. */
29
30#ifndef GCC_CORETYPES_H
31#error "gfortran.h must be included after coretypes.h"
32#endif
33
34/* In order for the format checking to accept the Fortran front end
35 diagnostic framework extensions, you must include this file before
36 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE
37 in c-common.h. */
38#undef GCC_DIAG_STYLE
39#define GCC_DIAG_STYLE __gcc_gfc__
40#if defined(GCC_DIAGNOSTIC_CORE_H)
41#error \
42In order for the format checking to accept the Fortran front end diagnostic \
43framework extensions, you must include this file before diagnostic-core.h, \
44not after.
45#endif
46
47/* Declarations common to the front-end and library are put in
48 libgfortran/libgfortran_frontend.h */
49#include "libgfortran.h"
50
51
52#include "intl.h"
53#include "splay-tree.h"
54
55/* Major control parameters. */
56
57#define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
58#define GFC_LETTERS 26 /* Number of letters in the alphabet. */
59
60#define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
61
62
63#define gfc_is_whitespace(c) ((c==' ') || (c=='\t') || (c=='\f'))
64
65/* Macros to check for groups of structure-like types and flavors since
66 derived types, structures, maps, unions are often treated similarly. */
67#define gfc_bt_struct(t) \
68 ((t) == BT_DERIVED || (t) == BT_UNION)
69#define gfc_fl_struct(f) \
70 ((f) == FL_DERIVED || (f) == FL_UNION || (f) == FL_STRUCT)
71#define case_bt_struct case BT_DERIVED: case BT_UNION
72#define case_fl_struct case FL_DERIVED: case FL_UNION: case FL_STRUCT
73
74/* Stringization. */
75#define stringize(x) expand_macro(x)
76#define expand_macro(x) # x
77
78/* For the runtime library, a standard prefix is a requirement to
79 avoid cluttering the namespace with things nobody asked for. It's
80 ugly to look at and a pain to type when you add the prefix by hand,
81 so we hide it behind a macro. */
82#define PREFIX(x) "_gfortran_" x
83#define PREFIX_LEN 10
84
85/* A prefix for internal variables, which are not user-visible. */
86#if !defined (NO_DOT_IN_LABEL)
87# define GFC_PREFIX(x) "_F." x
88#elif !defined (NO_DOLLAR_IN_LABEL)
89# define GFC_PREFIX(x) "_F$" x
90#else
91# define GFC_PREFIX(x) "_F_" x
92#endif
93
94#define BLANK_COMMON_NAME "__BLNK__"
95
96/* Macro to initialize an mstring structure. */
97#define minit(s, t) { s, NULL, t }
98
99/* Structure for storing strings to be matched by gfc_match_string. */
100typedef struct
101{
102 const char *string;
103 const char *mp;
104 int tag;
105}
106mstring;
107
108/* ISO_Fortran_binding.h
109 CAUTION: This has to be kept in sync with libgfortran. */
110
111#define CFI_type_kind_shift 8
112#define CFI_type_mask 0xFF
113#define CFI_type_from_type_kind(t, k) (t + (k << CFI_type_kind_shift))
114
115/* Constants, defined as macros. */
116#define CFI_VERSION 1
117#define CFI_MAX_RANK 15
118
119/* Attributes. */
120#define CFI_attribute_pointer 0
121#define CFI_attribute_allocatable 1
122#define CFI_attribute_other 2
123
124#define CFI_type_mask 0xFF
125#define CFI_type_kind_shift 8
126
127/* Intrinsic types. Their kind number defines their storage size. */
128#define CFI_type_Integer 1
129#define CFI_type_Logical 2
130#define CFI_type_Real 3
131#define CFI_type_Complex 4
132#define CFI_type_Character 5
133
134/* Combined type (for more, see ISO_Fortran_binding.h). */
135#define CFI_type_ucs4_char (CFI_type_Character + (4 << CFI_type_kind_shift))
136
137/* Types with no kind. */
138#define CFI_type_struct 6
139#define CFI_type_cptr 7
140#define CFI_type_cfunptr 8
141#define CFI_type_other -1
142
143
144/*************************** Enums *****************************/
145
146/* Used when matching and resolving data I/O transfer statements. */
147
148enum io_kind
149{ M_READ, M_WRITE, M_PRINT, M_INQUIRE };
150
151
152/* These are flags for identifying whether we are reading a character literal
153 between quotes or normal source code. */
154
155enum gfc_instring
156{ NONSTRING = 0, INSTRING_WARN, INSTRING_NOWARN };
157
158/* This is returned by gfc_notification_std to know if, given the flags
159 that were given (-std=, -pedantic) we should issue an error, a warning
160 or nothing. */
161
162enum notification
163{ SILENT, WARNING, ERROR };
164
165/* Matchers return one of these three values. The difference between
166 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
167 successful, but that something non-syntactic is wrong and an error
168 has already been issued. */
169
170enum match
171{ MATCH_NO = 1, MATCH_YES, MATCH_ERROR };
172
173/* Used for different Fortran source forms in places like scanner.cc. */
174enum gfc_source_form
175{ FORM_FREE, FORM_FIXED, FORM_UNKNOWN };
176
177/* Expression node types. */
178enum expr_t
179 { EXPR_UNKNOWN = 0, EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
180 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC
181};
182
183/* Array types. */
184enum array_type
185{ AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
186 AS_ASSUMED_SIZE, AS_IMPLIED_SHAPE, AS_ASSUMED_RANK,
187 AS_UNKNOWN
188};
189
190enum ar_type
191{ AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN };
192
193/* Statement label types. ST_LABEL_DO_TARGET is used for obsolescent warnings
194 related to shared DO terminations and DO targets which are neither END DO
195 nor CONTINUE; otherwise it is identical to ST_LABEL_TARGET. */
196enum gfc_sl_type
197{ ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET, ST_LABEL_DO_TARGET,
198 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
199};
200
201/* Intrinsic operators. */
202enum gfc_intrinsic_op
203{ GFC_INTRINSIC_BEGIN = 0,
204 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
205 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
206 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
207 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
208 /* ==, /=, >, >=, <, <= */
209 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
210 INTRINSIC_LT, INTRINSIC_LE,
211 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
212 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
213 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
214 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES,
215 GFC_INTRINSIC_END, /* Sentinel */
216 /* User defined derived type pseudo operators. These are set beyond the
217 sentinel so that they are excluded from module_read and module_write. */
218 INTRINSIC_FORMATTED, INTRINSIC_UNFORMATTED
219};
220
221/* This macro is the number of intrinsic operators that exist.
222 Assumptions are made about the numbering of the interface_op enums. */
223#define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
224
225/* Arithmetic results. */
226enum arith
227{ ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
228 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT,
229 ARITH_WRONGCONCAT
230};
231
232/* Statements. */
233enum gfc_statement
234{
235 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE,
236 ST_BACKSPACE, ST_BLOCK, ST_BLOCK_DATA,
237 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
238 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
239 ST_ELSEWHERE, ST_END_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA,
240 ST_ENDDO, ST_IMPLIED_ENDDO, ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL,
241 ST_END_FUNCTION, ST_ENDIF, ST_END_INTERFACE, ST_END_MODULE, ST_END_SUBMODULE,
242 ST_END_PROGRAM, ST_END_SELECT, ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE,
243 ST_ENTRY, ST_EQUIVALENCE, ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK,
244 ST_FORMAT, ST_FUNCTION, ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE,
245 ST_IMPORT, ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY,
246 ST_SYNC_IMAGES, ST_PARAMETER, ST_MODULE, ST_SUBMODULE, ST_MODULE_PROC,
247 ST_NAMELIST, ST_NULLIFY, ST_OPEN, ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC,
248 ST_READ, ST_RETURN, ST_REWIND, ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE,
249 ST_WHERE_BLOCK, ST_WHERE, ST_WAIT, ST_WRITE, ST_ASSIGNMENT,
250 ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE, ST_SIMPLE_IF,
251 ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT, ST_ENUM,
252 ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS,
253 ST_SELECT_RANK, ST_RANK, ST_STRUCTURE_DECL, ST_END_STRUCTURE,
254 ST_UNION, ST_END_UNION, ST_MAP, ST_END_MAP,
255 ST_OACC_PARALLEL_LOOP, ST_OACC_END_PARALLEL_LOOP, ST_OACC_PARALLEL,
256 ST_OACC_END_PARALLEL, ST_OACC_KERNELS, ST_OACC_END_KERNELS, ST_OACC_DATA,
257 ST_OACC_END_DATA, ST_OACC_HOST_DATA, ST_OACC_END_HOST_DATA, ST_OACC_LOOP,
258 ST_OACC_END_LOOP, ST_OACC_DECLARE, ST_OACC_UPDATE, ST_OACC_WAIT,
259 ST_OACC_CACHE, ST_OACC_KERNELS_LOOP, ST_OACC_END_KERNELS_LOOP,
260 ST_OACC_SERIAL_LOOP, ST_OACC_END_SERIAL_LOOP, ST_OACC_SERIAL,
261 ST_OACC_END_SERIAL, ST_OACC_ENTER_DATA, ST_OACC_EXIT_DATA, ST_OACC_ROUTINE,
262 ST_OACC_ATOMIC, ST_OACC_END_ATOMIC,
263 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_ATOMIC,
264 ST_OMP_END_CRITICAL, ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED,
265 ST_OMP_END_PARALLEL, ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
266 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
267 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
268 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
269 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
270 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
271 ST_OMP_TASKWAIT, ST_OMP_TASKYIELD, ST_OMP_CANCEL, ST_OMP_CANCELLATION_POINT,
272 ST_OMP_TASKGROUP, ST_OMP_END_TASKGROUP, ST_OMP_SIMD, ST_OMP_END_SIMD,
273 ST_OMP_DO_SIMD, ST_OMP_END_DO_SIMD, ST_OMP_PARALLEL_DO_SIMD,
274 ST_OMP_END_PARALLEL_DO_SIMD, ST_OMP_DECLARE_SIMD, ST_OMP_DECLARE_REDUCTION,
275 ST_OMP_TARGET, ST_OMP_END_TARGET, ST_OMP_TARGET_DATA, ST_OMP_END_TARGET_DATA,
276 ST_OMP_TARGET_UPDATE, ST_OMP_DECLARE_TARGET, ST_OMP_DECLARE_VARIANT,
277 ST_OMP_TEAMS, ST_OMP_END_TEAMS, ST_OMP_DISTRIBUTE, ST_OMP_END_DISTRIBUTE,
278 ST_OMP_DISTRIBUTE_SIMD, ST_OMP_END_DISTRIBUTE_SIMD,
279 ST_OMP_DISTRIBUTE_PARALLEL_DO, ST_OMP_END_DISTRIBUTE_PARALLEL_DO,
280 ST_OMP_DISTRIBUTE_PARALLEL_DO_SIMD, ST_OMP_END_DISTRIBUTE_PARALLEL_DO_SIMD,
281 ST_OMP_TARGET_TEAMS, ST_OMP_END_TARGET_TEAMS, ST_OMP_TEAMS_DISTRIBUTE,
282 ST_OMP_END_TEAMS_DISTRIBUTE, ST_OMP_TEAMS_DISTRIBUTE_SIMD,
283 ST_OMP_END_TEAMS_DISTRIBUTE_SIMD, ST_OMP_TARGET_TEAMS_DISTRIBUTE,
284 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE, ST_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD,
285 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_SIMD, ST_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO,
286 ST_OMP_END_TEAMS_DISTRIBUTE_PARALLEL_DO,
287 ST_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
288 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
289 ST_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
290 ST_OMP_END_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
291 ST_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
292 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
293 ST_OMP_TARGET_PARALLEL, ST_OMP_END_TARGET_PARALLEL,
294 ST_OMP_TARGET_PARALLEL_DO, ST_OMP_END_TARGET_PARALLEL_DO,
295 ST_OMP_TARGET_PARALLEL_DO_SIMD, ST_OMP_END_TARGET_PARALLEL_DO_SIMD,
296 ST_OMP_TARGET_ENTER_DATA, ST_OMP_TARGET_EXIT_DATA,
297 ST_OMP_TARGET_SIMD, ST_OMP_END_TARGET_SIMD,
298 ST_OMP_TASKLOOP, ST_OMP_END_TASKLOOP, ST_OMP_SCAN, ST_OMP_DEPOBJ,
299 ST_OMP_TASKLOOP_SIMD, ST_OMP_END_TASKLOOP_SIMD, ST_OMP_ORDERED_DEPEND,
300 ST_OMP_REQUIRES, ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL,
301 ST_GET_FCN_CHARACTERISTICS, ST_LOCK, ST_UNLOCK, ST_EVENT_POST,
302 ST_EVENT_WAIT, ST_FAIL_IMAGE, ST_FORM_TEAM, ST_CHANGE_TEAM,
303 ST_END_TEAM, ST_SYNC_TEAM, ST_OMP_PARALLEL_MASTER,
304 ST_OMP_END_PARALLEL_MASTER, ST_OMP_PARALLEL_MASTER_TASKLOOP,
305 ST_OMP_END_PARALLEL_MASTER_TASKLOOP, ST_OMP_PARALLEL_MASTER_TASKLOOP_SIMD,
306 ST_OMP_END_PARALLEL_MASTER_TASKLOOP_SIMD, ST_OMP_MASTER_TASKLOOP,
307 ST_OMP_END_MASTER_TASKLOOP, ST_OMP_MASTER_TASKLOOP_SIMD,
308 ST_OMP_END_MASTER_TASKLOOP_SIMD, ST_OMP_LOOP, ST_OMP_END_LOOP,
309 ST_OMP_PARALLEL_LOOP, ST_OMP_END_PARALLEL_LOOP, ST_OMP_TEAMS_LOOP,
310 ST_OMP_END_TEAMS_LOOP, ST_OMP_TARGET_PARALLEL_LOOP,
311 ST_OMP_END_TARGET_PARALLEL_LOOP, ST_OMP_TARGET_TEAMS_LOOP,
312 ST_OMP_END_TARGET_TEAMS_LOOP, ST_OMP_MASKED, ST_OMP_END_MASKED,
313 ST_OMP_PARALLEL_MASKED, ST_OMP_END_PARALLEL_MASKED,
314 ST_OMP_PARALLEL_MASKED_TASKLOOP, ST_OMP_END_PARALLEL_MASKED_TASKLOOP,
315 ST_OMP_PARALLEL_MASKED_TASKLOOP_SIMD,
316 ST_OMP_END_PARALLEL_MASKED_TASKLOOP_SIMD, ST_OMP_MASKED_TASKLOOP,
317 ST_OMP_END_MASKED_TASKLOOP, ST_OMP_MASKED_TASKLOOP_SIMD,
318 ST_OMP_END_MASKED_TASKLOOP_SIMD, ST_OMP_SCOPE, ST_OMP_END_SCOPE,
319 ST_OMP_ERROR, ST_NONE
320};
321
322/* Types of interfaces that we can have. Assignment interfaces are
323 considered to be intrinsic operators. */
324enum interface_type
325{
326 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
327 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT,
328 INTERFACE_DTIO
329};
330
331/* Symbol flavors: these are all mutually exclusive.
332 12 elements = 4 bits. */
333enum sym_flavor
334{
335 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
336 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
337 FL_UNION, FL_STRUCT, FL_VOID
338};
339
340/* Procedure types. 7 elements = 3 bits. */
341enum procedure_type
342{ PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
343 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
344};
345
346/* Intent types. Note that these values are also used in another enum in
347 decl.cc (match_attr_spec). */
348enum sym_intent
349{ INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
350};
351
352/* Access types. */
353enum gfc_access
354{ ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
355};
356
357/* Flags to keep track of where an interface came from.
358 3 elements = 2 bits. */
359enum ifsrc
360{ IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */
361 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */
362 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement
363 with explicit interface. */
364};
365
366/* Whether a SAVE attribute was set explicitly or implicitly. */
367enum save_state
368{ SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
369};
370
371/* OpenACC 'routine' directive's level of parallelism. */
372enum oacc_routine_lop
373{ OACC_ROUTINE_LOP_NONE = 0,
374 OACC_ROUTINE_LOP_GANG,
375 OACC_ROUTINE_LOP_WORKER,
376 OACC_ROUTINE_LOP_VECTOR,
377 OACC_ROUTINE_LOP_SEQ,
378 OACC_ROUTINE_LOP_ERROR
379};
380
381/* Strings for all symbol attributes. We use these for dumping the
382 parse tree, in error messages, and also when reading and writing
383 modules. In symbol.cc. */
384extern const mstring flavors[];
385extern const mstring procedures[];
386extern const mstring intents[];
387extern const mstring access_types[];
388extern const mstring ifsrc_types[];
389extern const mstring save_status[];
390
391/* Strings for DTIO procedure names. In symbol.cc. */
392extern const mstring dtio_procs[];
393
394enum dtio_codes
395{ DTIO_RF = 0, DTIO_WF, DTIO_RUF, DTIO_WUF };
396
397/* Enumeration of all the generic intrinsic functions. Used by the
398 backend for identification of a function. */
399
400enum gfc_isym_id
401{
402 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
403 the backend (e.g. KIND). */
404 GFC_ISYM_NONE = 0,
405 GFC_ISYM_ABORT,
406 GFC_ISYM_ABS,
407 GFC_ISYM_ACCESS,
408 GFC_ISYM_ACHAR,
409 GFC_ISYM_ACOS,
410 GFC_ISYM_ACOSD,
411 GFC_ISYM_ACOSH,
412 GFC_ISYM_ADJUSTL,
413 GFC_ISYM_ADJUSTR,
414 GFC_ISYM_AIMAG,
415 GFC_ISYM_AINT,
416 GFC_ISYM_ALARM,
417 GFC_ISYM_ALL,
418 GFC_ISYM_ALLOCATED,
419 GFC_ISYM_AND,
420 GFC_ISYM_ANINT,
421 GFC_ISYM_ANY,
422 GFC_ISYM_ASIN,
423 GFC_ISYM_ASIND,
424 GFC_ISYM_ASINH,
425 GFC_ISYM_ASSOCIATED,
426 GFC_ISYM_ATAN,
427 GFC_ISYM_ATAN2,
428 GFC_ISYM_ATAN2D,
429 GFC_ISYM_ATAND,
430 GFC_ISYM_ATANH,
431 GFC_ISYM_ATOMIC_ADD,
432 GFC_ISYM_ATOMIC_AND,
433 GFC_ISYM_ATOMIC_CAS,
434 GFC_ISYM_ATOMIC_DEF,
435 GFC_ISYM_ATOMIC_FETCH_ADD,
436 GFC_ISYM_ATOMIC_FETCH_AND,
437 GFC_ISYM_ATOMIC_FETCH_OR,
438 GFC_ISYM_ATOMIC_FETCH_XOR,
439 GFC_ISYM_ATOMIC_OR,
440 GFC_ISYM_ATOMIC_REF,
441 GFC_ISYM_ATOMIC_XOR,
442 GFC_ISYM_BGE,
443 GFC_ISYM_BGT,
444 GFC_ISYM_BIT_SIZE,
445 GFC_ISYM_BLE,
446 GFC_ISYM_BLT,
447 GFC_ISYM_BTEST,
448 GFC_ISYM_CAF_GET,
449 GFC_ISYM_CAF_SEND,
450 GFC_ISYM_CEILING,
451 GFC_ISYM_CHAR,
452 GFC_ISYM_CHDIR,
453 GFC_ISYM_CHMOD,
454 GFC_ISYM_CMPLX,
455 GFC_ISYM_CO_BROADCAST,
456 GFC_ISYM_CO_MAX,
457 GFC_ISYM_CO_MIN,
458 GFC_ISYM_CO_REDUCE,
459 GFC_ISYM_CO_SUM,
460 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
461 GFC_ISYM_COMPILER_OPTIONS,
462 GFC_ISYM_COMPILER_VERSION,
463 GFC_ISYM_COMPLEX,
464 GFC_ISYM_CONJG,
465 GFC_ISYM_CONVERSION,
466 GFC_ISYM_COS,
467 GFC_ISYM_COSD,
468 GFC_ISYM_COSH,
469 GFC_ISYM_COTAN,
470 GFC_ISYM_COTAND,
471 GFC_ISYM_COUNT,
472 GFC_ISYM_CPU_TIME,
473 GFC_ISYM_CSHIFT,
474 GFC_ISYM_CTIME,
475 GFC_ISYM_C_ASSOCIATED,
476 GFC_ISYM_C_F_POINTER,
477 GFC_ISYM_C_F_PROCPOINTER,
478 GFC_ISYM_C_FUNLOC,
479 GFC_ISYM_C_LOC,
480 GFC_ISYM_C_SIZEOF,
481 GFC_ISYM_DATE_AND_TIME,
482 GFC_ISYM_DBLE,
483 GFC_ISYM_DFLOAT,
484 GFC_ISYM_DIGITS,
485 GFC_ISYM_DIM,
486 GFC_ISYM_DOT_PRODUCT,
487 GFC_ISYM_DPROD,
488 GFC_ISYM_DSHIFTL,
489 GFC_ISYM_DSHIFTR,
490 GFC_ISYM_DTIME,
491 GFC_ISYM_EOSHIFT,
492 GFC_ISYM_EPSILON,
493 GFC_ISYM_ERF,
494 GFC_ISYM_ERFC,
495 GFC_ISYM_ERFC_SCALED,
496 GFC_ISYM_ETIME,
497 GFC_ISYM_EVENT_QUERY,
498 GFC_ISYM_EXECUTE_COMMAND_LINE,
499 GFC_ISYM_EXIT,
500 GFC_ISYM_EXP,
501 GFC_ISYM_EXPONENT,
502 GFC_ISYM_EXTENDS_TYPE_OF,
503 GFC_ISYM_FAILED_IMAGES,
504 GFC_ISYM_FDATE,
505 GFC_ISYM_FE_RUNTIME_ERROR,
506 GFC_ISYM_FGET,
507 GFC_ISYM_FGETC,
508 GFC_ISYM_FINDLOC,
509 GFC_ISYM_FLOAT,
510 GFC_ISYM_FLOOR,
511 GFC_ISYM_FLUSH,
512 GFC_ISYM_FNUM,
513 GFC_ISYM_FPUT,
514 GFC_ISYM_FPUTC,
515 GFC_ISYM_FRACTION,
516 GFC_ISYM_FREE,
517 GFC_ISYM_FSEEK,
518 GFC_ISYM_FSTAT,
519 GFC_ISYM_FTELL,
520 GFC_ISYM_TGAMMA,
521 GFC_ISYM_GERROR,
522 GFC_ISYM_GETARG,
523 GFC_ISYM_GET_COMMAND,
524 GFC_ISYM_GET_COMMAND_ARGUMENT,
525 GFC_ISYM_GETCWD,
526 GFC_ISYM_GETENV,
527 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
528 GFC_ISYM_GETGID,
529 GFC_ISYM_GETLOG,
530 GFC_ISYM_GETPID,
531 GFC_ISYM_GET_TEAM,
532 GFC_ISYM_GETUID,
533 GFC_ISYM_GMTIME,
534 GFC_ISYM_HOSTNM,
535 GFC_ISYM_HUGE,
536 GFC_ISYM_HYPOT,
537 GFC_ISYM_IACHAR,
538 GFC_ISYM_IALL,
539 GFC_ISYM_IAND,
540 GFC_ISYM_IANY,
541 GFC_ISYM_IARGC,
542 GFC_ISYM_IBCLR,
543 GFC_ISYM_IBITS,
544 GFC_ISYM_IBSET,
545 GFC_ISYM_ICHAR,
546 GFC_ISYM_IDATE,
547 GFC_ISYM_IEOR,
548 GFC_ISYM_IERRNO,
549 GFC_ISYM_IMAGE_INDEX,
550 GFC_ISYM_IMAGE_STATUS,
551 GFC_ISYM_INDEX,
552 GFC_ISYM_INT,
553 GFC_ISYM_INT2,
554 GFC_ISYM_INT8,
555 GFC_ISYM_IOR,
556 GFC_ISYM_IPARITY,
557 GFC_ISYM_IRAND,
558 GFC_ISYM_ISATTY,
559 GFC_ISYM_IS_CONTIGUOUS,
560 GFC_ISYM_IS_IOSTAT_END,
561 GFC_ISYM_IS_IOSTAT_EOR,
562 GFC_ISYM_ISNAN,
563 GFC_ISYM_ISHFT,
564 GFC_ISYM_ISHFTC,
565 GFC_ISYM_ITIME,
566 GFC_ISYM_J0,
567 GFC_ISYM_J1,
568 GFC_ISYM_JN,
569 GFC_ISYM_JN2,
570 GFC_ISYM_KILL,
571 GFC_ISYM_KIND,
572 GFC_ISYM_LBOUND,
573 GFC_ISYM_LCOBOUND,
574 GFC_ISYM_LEADZ,
575 GFC_ISYM_LEN,
576 GFC_ISYM_LEN_TRIM,
577 GFC_ISYM_LGAMMA,
578 GFC_ISYM_LGE,
579 GFC_ISYM_LGT,
580 GFC_ISYM_LINK,
581 GFC_ISYM_LLE,
582 GFC_ISYM_LLT,
583 GFC_ISYM_LOC,
584 GFC_ISYM_LOG,
585 GFC_ISYM_LOG10,
586 GFC_ISYM_LOGICAL,
587 GFC_ISYM_LONG,
588 GFC_ISYM_LSHIFT,
589 GFC_ISYM_LSTAT,
590 GFC_ISYM_LTIME,
591 GFC_ISYM_MALLOC,
592 GFC_ISYM_MASKL,
593 GFC_ISYM_MASKR,
594 GFC_ISYM_MATMUL,
595 GFC_ISYM_MAX,
596 GFC_ISYM_MAXEXPONENT,
597 GFC_ISYM_MAXLOC,
598 GFC_ISYM_MAXVAL,
599 GFC_ISYM_MCLOCK,
600 GFC_ISYM_MCLOCK8,
601 GFC_ISYM_MERGE,
602 GFC_ISYM_MERGE_BITS,
603 GFC_ISYM_MIN,
604 GFC_ISYM_MINEXPONENT,
605 GFC_ISYM_MINLOC,
606 GFC_ISYM_MINVAL,
607 GFC_ISYM_MOD,
608 GFC_ISYM_MODULO,
609 GFC_ISYM_MOVE_ALLOC,
610 GFC_ISYM_MVBITS,
611 GFC_ISYM_NEAREST,
612 GFC_ISYM_NEW_LINE,
613 GFC_ISYM_NINT,
614 GFC_ISYM_NORM2,
615 GFC_ISYM_NOT,
616 GFC_ISYM_NULL,
617 GFC_ISYM_NUM_IMAGES,
618 GFC_ISYM_OR,
619 GFC_ISYM_PACK,
620 GFC_ISYM_PARITY,
621 GFC_ISYM_PERROR,
622 GFC_ISYM_POPCNT,
623 GFC_ISYM_POPPAR,
624 GFC_ISYM_PRECISION,
625 GFC_ISYM_PRESENT,
626 GFC_ISYM_PRODUCT,
627 GFC_ISYM_RADIX,
628 GFC_ISYM_RAND,
629 GFC_ISYM_RANDOM_INIT,
630 GFC_ISYM_RANDOM_NUMBER,
631 GFC_ISYM_RANDOM_SEED,
632 GFC_ISYM_RANGE,
633 GFC_ISYM_RANK,
634 GFC_ISYM_REAL,
635 GFC_ISYM_REALPART,
636 GFC_ISYM_RENAME,
637 GFC_ISYM_REPEAT,
638 GFC_ISYM_RESHAPE,
639 GFC_ISYM_RRSPACING,
640 GFC_ISYM_RSHIFT,
641 GFC_ISYM_SAME_TYPE_AS,
642 GFC_ISYM_SC_KIND,
643 GFC_ISYM_SCALE,
644 GFC_ISYM_SCAN,
645 GFC_ISYM_SECNDS,
646 GFC_ISYM_SECOND,
647 GFC_ISYM_SET_EXPONENT,
648 GFC_ISYM_SHAPE,
649 GFC_ISYM_SHIFTA,
650 GFC_ISYM_SHIFTL,
651 GFC_ISYM_SHIFTR,
652 GFC_ISYM_BACKTRACE,
653 GFC_ISYM_SIGN,
654 GFC_ISYM_SIGNAL,
655 GFC_ISYM_SI_KIND,
656 GFC_ISYM_SIN,
657 GFC_ISYM_SIND,
658 GFC_ISYM_SINH,
659 GFC_ISYM_SIZE,
660 GFC_ISYM_SLEEP,
661 GFC_ISYM_SIZEOF,
662 GFC_ISYM_SNGL,
663 GFC_ISYM_SPACING,
664 GFC_ISYM_SPREAD,
665 GFC_ISYM_SQRT,
666 GFC_ISYM_SRAND,
667 GFC_ISYM_SR_KIND,
668 GFC_ISYM_STAT,
669 GFC_ISYM_STOPPED_IMAGES,
670 GFC_ISYM_STORAGE_SIZE,
671 GFC_ISYM_STRIDE,
672 GFC_ISYM_SUM,
673 GFC_ISYM_SYMLINK,
674 GFC_ISYM_SYMLNK,
675 GFC_ISYM_SYSTEM,
676 GFC_ISYM_SYSTEM_CLOCK,
677 GFC_ISYM_TAN,
678 GFC_ISYM_TAND,
679 GFC_ISYM_TANH,
680 GFC_ISYM_TEAM_NUMBER,
681 GFC_ISYM_THIS_IMAGE,
682 GFC_ISYM_TIME,
683 GFC_ISYM_TIME8,
684 GFC_ISYM_TINY,
685 GFC_ISYM_TRAILZ,
686 GFC_ISYM_TRANSFER,
687 GFC_ISYM_TRANSPOSE,
688 GFC_ISYM_TRIM,
689 GFC_ISYM_TTYNAM,
690 GFC_ISYM_UBOUND,
691 GFC_ISYM_UCOBOUND,
692 GFC_ISYM_UMASK,
693 GFC_ISYM_UNLINK,
694 GFC_ISYM_UNPACK,
695 GFC_ISYM_VERIFY,
696 GFC_ISYM_XOR,
697 GFC_ISYM_Y0,
698 GFC_ISYM_Y1,
699 GFC_ISYM_YN,
700 GFC_ISYM_YN2
701};
702
703enum init_local_logical
704{
705 GFC_INIT_LOGICAL_OFF = 0,
706 GFC_INIT_LOGICAL_FALSE,
707 GFC_INIT_LOGICAL_TRUE
708};
709
710enum init_local_character
711{
712 GFC_INIT_CHARACTER_OFF = 0,
713 GFC_INIT_CHARACTER_ON
714};
715
716enum init_local_integer
717{
718 GFC_INIT_INTEGER_OFF = 0,
719 GFC_INIT_INTEGER_ON
720};
721
722enum gfc_reverse
723{
724 GFC_ENABLE_REVERSE,
725 GFC_FORWARD_SET,
726 GFC_REVERSE_SET,
727 GFC_INHIBIT_REVERSE
728};
729
730enum gfc_param_spec_type
731{
732 SPEC_EXPLICIT,
733 SPEC_ASSUMED,
734 SPEC_DEFERRED
735};
736
737/************************* Structures *****************************/
738
739/* Used for keeping things in balanced binary trees. */
740#define BBT_HEADER(self) int priority; struct self *left, *right
741
742#define NAMED_INTCST(a,b,c,d) a,
743#define NAMED_KINDARRAY(a,b,c,d) a,
744#define NAMED_FUNCTION(a,b,c,d) a,
745#define NAMED_SUBROUTINE(a,b,c,d) a,
746#define NAMED_DERIVED_TYPE(a,b,c,d) a,
747enum iso_fortran_env_symbol
748{
749 ISOFORTRANENV_INVALID = -1,
750#include "iso-fortran-env.def"
751 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
752};
753#undef NAMED_INTCST
754#undef NAMED_KINDARRAY
755#undef NAMED_FUNCTION
756#undef NAMED_SUBROUTINE
757#undef NAMED_DERIVED_TYPE
758
759#define NAMED_INTCST(a,b,c,d) a,
760#define NAMED_REALCST(a,b,c,d) a,
761#define NAMED_CMPXCST(a,b,c,d) a,
762#define NAMED_LOGCST(a,b,c) a,
763#define NAMED_CHARKNDCST(a,b,c) a,
764#define NAMED_CHARCST(a,b,c) a,
765#define DERIVED_TYPE(a,b,c) a,
766#define NAMED_FUNCTION(a,b,c,d) a,
767#define NAMED_SUBROUTINE(a,b,c,d) a,
768enum iso_c_binding_symbol
769{
770 ISOCBINDING_INVALID = -1,
771#include "iso-c-binding.def"
772 ISOCBINDING_LAST,
773 ISOCBINDING_NUMBER = ISOCBINDING_LAST
774};
775#undef NAMED_INTCST
776#undef NAMED_REALCST
777#undef NAMED_CMPXCST
778#undef NAMED_LOGCST
779#undef NAMED_CHARKNDCST
780#undef NAMED_CHARCST
781#undef DERIVED_TYPE
782#undef NAMED_FUNCTION
783#undef NAMED_SUBROUTINE
784
785enum intmod_id
786{
787 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING,
788 INTMOD_IEEE_FEATURES, INTMOD_IEEE_EXCEPTIONS, INTMOD_IEEE_ARITHMETIC
789};
790
791typedef struct
792{
793 char name[GFC_MAX_SYMBOL_LEN + 1];
794 int value; /* Used for both integer and character values. */
795 bt f90_type;
796}
797CInteropKind_t;
798
799/* Array of structs, where the structs represent the C interop kinds.
800 The list will be implemented based on a hash of the kind name since
801 these could be accessed multiple times.
802 Declared in trans-types.cc as a global, since it's in that file
803 that the list is initialized. */
804extern CInteropKind_t c_interop_kinds_table[];
805
806enum gfc_omp_device_type
807{
808 OMP_DEVICE_TYPE_UNSET,
809 OMP_DEVICE_TYPE_HOST,
810 OMP_DEVICE_TYPE_NOHOST,
811 OMP_DEVICE_TYPE_ANY
812};
813
814enum gfc_omp_severity_type
815{
816 OMP_SEVERITY_UNSET,
817 OMP_SEVERITY_WARNING,
818 OMP_SEVERITY_FATAL
819};
820
821enum gfc_omp_at_type
822{
823 OMP_AT_UNSET,
824 OMP_AT_COMPILATION,
825 OMP_AT_EXECUTION
826};
827
828/* Structure and list of supported extension attributes. */
829typedef enum
830{
831 EXT_ATTR_DLLIMPORT = 0,
832 EXT_ATTR_DLLEXPORT,
833 EXT_ATTR_STDCALL,
834 EXT_ATTR_CDECL,
835 EXT_ATTR_FASTCALL,
836 EXT_ATTR_NO_ARG_CHECK,
837 EXT_ATTR_DEPRECATED,
838 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
839}
840ext_attr_id_t;
841
842typedef struct
843{
844 const char *name;
845 unsigned id;
846 const char *middle_end_name;
847}
848ext_attr_t;
849
850extern const ext_attr_t ext_attr_list[];
851
852/* Symbol attribute structure. */
853typedef struct
854{
855 /* Variable attributes. */
856 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1,
857 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
858 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
859 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1,
860 contiguous:1, fe_temp: 1, automatic: 1;
861
862 /* For CLASS containers, the pointer attribute is sometimes set internally
863 even though it was not directly specified. In this case, keep the
864 "real" (original) value here. */
865 unsigned class_pointer:1;
866
867 ENUM_BITFIELD (save_state) save:2;
868
869 unsigned data:1, /* Symbol is named in a DATA statement. */
870 is_protected:1, /* Symbol has been marked as protected. */
871 use_assoc:1, /* Symbol has been use-associated. */
872 used_in_submodule:1, /* Symbol has been use-associated in a
873 submodule. Needed since these entities must
874 be set host associated to be compliant. */
875 use_only:1, /* Symbol has been use-associated, with ONLY. */
876 use_rename:1, /* Symbol has been use-associated and renamed. */
877 imported:1, /* Symbol has been associated by IMPORT. */
878 host_assoc:1; /* Symbol has been host associated. */
879
880 unsigned in_namelist:1, in_common:1, in_equivalence:1;
881 unsigned function:1, subroutine:1, procedure:1;
882 unsigned generic:1, generic_copy:1;
883 unsigned implicit_type:1; /* Type defined via implicit rules. */
884 unsigned untyped:1; /* No implicit type could be found. */
885
886 unsigned is_bind_c:1; /* say if is bound to C. */
887 unsigned extension:8; /* extension level of a derived type. */
888 unsigned is_class:1; /* is a CLASS container. */
889 unsigned class_ok:1; /* is a CLASS object with correct attributes. */
890 unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */
891 unsigned vtype:1; /* is a derived type of a vtab. */
892
893 /* These flags are both in the typespec and attribute. The attribute
894 list is what gets read from/written to a module file. The typespec
895 is created from a decl being processed. */
896 unsigned is_c_interop:1; /* It's c interoperable. */
897 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
898
899 /* Function/subroutine attributes */
900 unsigned sequence:1, elemental:1, pure:1, recursive:1;
901 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
902
903 /* Set if this is a module function or subroutine. Note that it is an
904 attribute because it appears as a prefix in the declaration like
905 PURE, etc.. */
906 unsigned module_procedure:1;
907
908 /* Set if a (public) symbol [e.g. generic name] exposes this symbol,
909 which is relevant for private module procedures. */
910 unsigned public_used:1;
911
912 /* This is set if a contained procedure could be declared pure. This is
913 used for certain optimizations that require the result or arguments
914 cannot alias. Note that this is zero for PURE procedures. */
915 unsigned implicit_pure:1;
916
917 /* This is set for a procedure that contains expressions referencing
918 arrays coming from outside its namespace.
919 This is used to force the creation of a temporary when the LHS of
920 an array assignment may be used by an elemental procedure appearing
921 on the RHS. */
922 unsigned array_outer_dependency:1;
923
924 /* This is set if the subroutine doesn't return. Currently, this
925 is only possible for intrinsic subroutines. */
926 unsigned noreturn:1;
927
928 /* Set if this procedure is an alternate entry point. These procedures
929 don't have any code associated, and the backend will turn them into
930 thunks to the master function. */
931 unsigned entry:1;
932
933 /* Set if this is the master function for a procedure with multiple
934 entry points. */
935 unsigned entry_master:1;
936
937 /* Set if this is the master function for a function with multiple
938 entry points where characteristics of the entry points differ. */
939 unsigned mixed_entry_master:1;
940
941 /* Set if a function must always be referenced by an explicit interface. */
942 unsigned always_explicit:1;
943
944 /* Set if the symbol is generated and, hence, standard violations
945 shouldn't be flaged. */
946 unsigned artificial:1;
947
948 /* Set if the symbol has been referenced in an expression. No further
949 modification of type or type parameters is permitted. */
950 unsigned referenced:1;
951
952 /* Set if this is the symbol for the main program. */
953 unsigned is_main_program:1;
954
955 /* Mutually exclusive multibit attributes. */
956 ENUM_BITFIELD (gfc_access) access:2;
957 ENUM_BITFIELD (sym_intent) intent:2;
958 ENUM_BITFIELD (sym_flavor) flavor:4;
959 ENUM_BITFIELD (ifsrc) if_source:2;
960
961 ENUM_BITFIELD (procedure_type) proc:3;
962
963 /* Special attributes for Cray pointers, pointees. */
964 unsigned cray_pointer:1, cray_pointee:1;
965
966 /* The symbol is a derived type with allocatable components, pointer
967 components or private components, procedure pointer components,
968 possibly nested. zero_comp is true if the derived type has no
969 component at all. defined_assign_comp is true if the derived
970 type or a (sub-)component has a typebound defined assignment.
971 unlimited_polymorphic flags the type of the container for these
972 entities. */
973 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
974 private_comp:1, zero_comp:1, coarray_comp:1, lock_comp:1,
975 event_comp:1, defined_assign_comp:1, unlimited_polymorphic:1,
976 has_dtio_procs:1, caf_token:1;
977
978 /* This is a temporary selector for SELECT TYPE/RANK or an associate
979 variable for SELECT TYPE/RANK or ASSOCIATE. */
980 unsigned select_type_temporary:1, select_rank_temporary:1, associate_var:1;
981
982 /* These are the attributes required for parameterized derived
983 types. */
984 unsigned pdt_kind:1, pdt_len:1, pdt_type:1, pdt_template:1,
985 pdt_array:1, pdt_string:1;
986
987 /* This is omp_{out,in,priv,orig} artificial variable in
988 !$OMP DECLARE REDUCTION. */
989 unsigned omp_udr_artificial_var:1;
990
991 /* Mentioned in OMP DECLARE TARGET. */
992 unsigned omp_declare_target:1;
993 unsigned omp_declare_target_link:1;
994 ENUM_BITFIELD (gfc_omp_device_type) omp_device_type:2;
995
996 /* Mentioned in OACC DECLARE. */
997 unsigned oacc_declare_create:1;
998 unsigned oacc_declare_copyin:1;
999 unsigned oacc_declare_deviceptr:1;
1000 unsigned oacc_declare_device_resident:1;
1001 unsigned oacc_declare_link:1;
1002
1003 /* OpenACC 'routine' directive's level of parallelism. */
1004 ENUM_BITFIELD (oacc_routine_lop) oacc_routine_lop:3;
1005 unsigned oacc_routine_nohost:1;
1006
1007 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
1008 unsigned ext_attr:EXT_ATTR_NUM;
1009
1010 /* The namespace where the attribute has been set. */
1011 struct gfc_namespace *volatile_ns, *asynchronous_ns;
1012}
1013symbol_attribute;
1014
1015
1016/* We need to store source lines as sequences of multibyte source
1017 characters. We define here a type wide enough to hold any multibyte
1018 source character, just like libcpp does. A 32-bit type is enough. */
1019
1020#if HOST_BITS_PER_INT >= 32
1021typedef unsigned int gfc_char_t;
1022#elif HOST_BITS_PER_LONG >= 32
1023typedef unsigned long gfc_char_t;
1024#elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
1025typedef unsigned long long gfc_char_t;
1026#else
1027# error "Cannot find an integer type with at least 32 bits"
1028#endif
1029
1030
1031/* The following three structures are used to identify a location in
1032 the sources.
1033
1034 gfc_file is used to maintain a tree of the source files and how
1035 they include each other
1036
1037 gfc_linebuf holds a single line of source code and information
1038 which file it resides in
1039
1040 locus point to the sourceline and the character in the source
1041 line.
1042*/
1043
1044typedef struct gfc_file
1045{
1046 struct gfc_file *next, *up;
1047 int inclusion_line, line;
1048 char *filename;
1049} gfc_file;
1050
1051typedef struct gfc_linebuf
1052{
1053 location_t location;
1054 struct gfc_file *file;
1055 struct gfc_linebuf *next;
1056
1057 int truncated;
1058 bool dbg_emitted;
1059
1060 gfc_char_t line[1];
1061} gfc_linebuf;
1062
1063#define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
1064
1065#define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
1066
1067typedef struct
1068{
1069 gfc_char_t *nextc;
1070 gfc_linebuf *lb;
1071} locus;
1072
1073/* In order for the "gfc" format checking to work correctly, you must
1074 have declared a typedef locus first. */
1075#if GCC_VERSION >= 4001
1076#define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
1077#else
1078#define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
1079#endif
1080
1081
1082/* Suppress error messages or re-enable them. */
1083
1084void gfc_push_suppress_errors (void);
1085void gfc_pop_suppress_errors (void);
1086bool gfc_query_suppress_errors (void);
1087
1088
1089/* Character length structures hold the expression that gives the
1090 length of a character variable. We avoid putting these into
1091 gfc_typespec because doing so prevents us from doing structure
1092 copies and forces us to deallocate any typespecs we create, as well
1093 as structures that contain typespecs. They also can have multiple
1094 character typespecs pointing to them.
1095
1096 These structures form a singly linked list within the current
1097 namespace and are deallocated with the namespace. It is possible to
1098 end up with gfc_charlen structures that have nothing pointing to them. */
1099
1100typedef struct gfc_charlen
1101{
1102 struct gfc_expr *length;
1103 struct gfc_charlen *next;
1104 bool length_from_typespec; /* Length from explicit array ctor typespec? */
1105 tree backend_decl;
1106 tree passed_length; /* Length argument explicitly passed. */
1107
1108 int resolved;
1109}
1110gfc_charlen;
1111
1112#define gfc_get_charlen() XCNEW (gfc_charlen)
1113
1114/* Type specification structure. */
1115typedef struct
1116{
1117 bt type;
1118 int kind;
1119
1120 union
1121 {
1122 struct gfc_symbol *derived; /* For derived types only. */
1123 gfc_charlen *cl; /* For character types only. */
1124 int pad; /* For hollerith types only. */
1125 }
1126 u;
1127
1128 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
1129 int is_c_interop;
1130 int is_iso_c;
1131 bt f90_type;
1132 bool deferred;
1133 gfc_symbol *interop_kind;
1134}
1135gfc_typespec;
1136
1137/* Array specification. */
1138typedef struct
1139{
1140 int rank; /* A scalar has a rank of 0, an assumed-rank array has -1. */
1141 int corank;
1142 array_type type, cotype;
1143 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
1144
1145 /* These two fields are used with the Cray Pointer extension. */
1146 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
1147 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
1148 AS_EXPLICIT, but we want to remember that we
1149 did this. */
1150
1151 bool resolved;
1152}
1153gfc_array_spec;
1154
1155#define gfc_get_array_spec() XCNEW (gfc_array_spec)
1156
1157
1158/* Components of derived types. */
1159typedef struct gfc_component
1160{
1161 const char *name;
1162 gfc_typespec ts;
1163
1164 symbol_attribute attr;
1165 gfc_array_spec *as;
1166
1167 tree backend_decl;
1168 /* Used to cache a FIELD_DECL matching this same component
1169 but applied to a different backend containing type that was
1170 generated by gfc_nonrestricted_type. */
1171 tree norestrict_decl;
1172 locus loc;
1173 struct gfc_expr *initializer;
1174 /* Used in parameterized derived type declarations to store parameterized
1175 kind expressions. */
1176 struct gfc_expr *kind_expr;
1177 struct gfc_actual_arglist *param_list;
1178
1179 struct gfc_component *next;
1180
1181 /* Needed for procedure pointer components. */
1182 struct gfc_typebound_proc *tb;
1183 /* When allocatable/pointer and in a coarray the associated token. */
1184 tree caf_token;
1185}
1186gfc_component;
1187
1188#define gfc_get_component() XCNEW (gfc_component)
1189
1190/* Formal argument lists are lists of symbols. */
1191typedef struct gfc_formal_arglist
1192{
1193 /* Symbol representing the argument at this position in the arglist. */
1194 struct gfc_symbol *sym;
1195 /* Points to the next formal argument. */
1196 struct gfc_formal_arglist *next;
1197}
1198gfc_formal_arglist;
1199
1200#define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
1201
1202
1203struct gfc_dummy_arg;
1204
1205
1206/* The gfc_actual_arglist structure is for actual arguments and
1207 for type parameter specification lists. */
1208typedef struct gfc_actual_arglist
1209{
1210 const char *name;
1211 /* Alternate return label when the expr member is null. */
1212 struct gfc_st_label *label;
1213
1214 gfc_param_spec_type spec_type;
1215
1216 struct gfc_expr *expr;
1217
1218 /* The dummy arg this actual arg is associated with, if the interface
1219 is explicit. NULL otherwise. */
1220 gfc_dummy_arg *associated_dummy;
1221
1222 struct gfc_actual_arglist *next;
1223}
1224gfc_actual_arglist;
1225
1226#define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
1227
1228
1229/* Because a symbol can belong to multiple namelists, they must be
1230 linked externally to the symbol itself. */
1231typedef struct gfc_namelist
1232{
1233 struct gfc_symbol *sym;
1234 struct gfc_namelist *next;
1235}
1236gfc_namelist;
1237
1238#define gfc_get_namelist() XCNEW (gfc_namelist)
1239
1240/* Likewise to gfc_namelist, but contains expressions. */
1241typedef struct gfc_expr_list
1242{
1243 struct gfc_expr *expr;
1244 struct gfc_expr_list *next;
1245}
1246gfc_expr_list;
1247
1248#define gfc_get_expr_list() XCNEW (gfc_expr_list)
1249
1250enum gfc_omp_reduction_op
1251{
1252 OMP_REDUCTION_NONE = -1,
1253 OMP_REDUCTION_PLUS = INTRINSIC_PLUS,
1254 OMP_REDUCTION_MINUS = INTRINSIC_MINUS,
1255 OMP_REDUCTION_TIMES = INTRINSIC_TIMES,
1256 OMP_REDUCTION_AND = INTRINSIC_AND,
1257 OMP_REDUCTION_OR = INTRINSIC_OR,
1258 OMP_REDUCTION_EQV = INTRINSIC_EQV,
1259 OMP_REDUCTION_NEQV = INTRINSIC_NEQV,
1260 OMP_REDUCTION_MAX = GFC_INTRINSIC_END,
1261 OMP_REDUCTION_MIN,
1262 OMP_REDUCTION_IAND,
1263 OMP_REDUCTION_IOR,
1264 OMP_REDUCTION_IEOR,
1265 OMP_REDUCTION_USER
1266};
1267
1268enum gfc_omp_depend_op
1269{
1270 OMP_DEPEND_UNSET,
1271 OMP_DEPEND_IN,
1272 OMP_DEPEND_OUT,
1273 OMP_DEPEND_INOUT,
1274 OMP_DEPEND_INOUTSET,
1275 OMP_DEPEND_MUTEXINOUTSET,
1276 OMP_DEPEND_DEPOBJ,
1277 OMP_DEPEND_SINK_FIRST,
1278 OMP_DEPEND_SINK
1279};
1280
1281enum gfc_omp_map_op
1282{
1283 OMP_MAP_ALLOC,
1284 OMP_MAP_IF_PRESENT,
1285 OMP_MAP_ATTACH,
1286 OMP_MAP_TO,
1287 OMP_MAP_FROM,
1288 OMP_MAP_TOFROM,
1289 OMP_MAP_DELETE,
1290 OMP_MAP_DETACH,
1291 OMP_MAP_FORCE_ALLOC,
1292 OMP_MAP_FORCE_TO,
1293 OMP_MAP_FORCE_FROM,
1294 OMP_MAP_FORCE_TOFROM,
1295 OMP_MAP_FORCE_PRESENT,
1296 OMP_MAP_FORCE_DEVICEPTR,
1297 OMP_MAP_DEVICE_RESIDENT,
1298 OMP_MAP_LINK,
1299 OMP_MAP_RELEASE,
1300 OMP_MAP_ALWAYS_TO,
1301 OMP_MAP_ALWAYS_FROM,
1302 OMP_MAP_ALWAYS_TOFROM
1303};
1304
1305enum gfc_omp_defaultmap
1306{
1307 OMP_DEFAULTMAP_UNSET,
1308 OMP_DEFAULTMAP_ALLOC,
1309 OMP_DEFAULTMAP_TO,
1310 OMP_DEFAULTMAP_FROM,
1311 OMP_DEFAULTMAP_TOFROM,
1312 OMP_DEFAULTMAP_FIRSTPRIVATE,
1313 OMP_DEFAULTMAP_NONE,
1314 OMP_DEFAULTMAP_DEFAULT,
1315 OMP_DEFAULTMAP_PRESENT
1316};
1317
1318enum gfc_omp_defaultmap_category
1319{
1320 OMP_DEFAULTMAP_CAT_UNCATEGORIZED,
1321 OMP_DEFAULTMAP_CAT_SCALAR,
1322 OMP_DEFAULTMAP_CAT_AGGREGATE,
1323 OMP_DEFAULTMAP_CAT_ALLOCATABLE,
1324 OMP_DEFAULTMAP_CAT_POINTER,
1325 OMP_DEFAULTMAP_CAT_NUM
1326};
1327
1328enum gfc_omp_linear_op
1329{
1330 OMP_LINEAR_DEFAULT,
1331 OMP_LINEAR_REF,
1332 OMP_LINEAR_VAL,
1333 OMP_LINEAR_UVAL
1334};
1335
1336/* For use in OpenMP clauses in case we need extra information
1337 (aligned clause alignment, linear clause step, etc.). */
1338
1339typedef struct gfc_omp_namelist
1340{
1341 struct gfc_symbol *sym;
1342 struct gfc_expr *expr;
1343 union
1344 {
1345 gfc_omp_reduction_op reduction_op;
1346 gfc_omp_depend_op depend_op;
1347 gfc_omp_map_op map_op;
1348 struct
1349 {
1350 ENUM_BITFIELD (gfc_omp_linear_op) op:4;
1351 bool old_modifier;
1352 } linear;
1353 struct gfc_common_head *common;
1354 bool lastprivate_conditional;
1355 } u;
1356 union
1357 {
1358 struct gfc_omp_namelist_udr *udr;
1359 gfc_namespace *ns;
1360 } u2;
1361 struct gfc_omp_namelist *next;
1362 locus where;
1363}
1364gfc_omp_namelist;
1365
1366#define gfc_get_omp_namelist() XCNEW (gfc_omp_namelist)
1367
1368enum
1369{
1370 OMP_LIST_FIRST,
1371 OMP_LIST_PRIVATE = OMP_LIST_FIRST,
1372 OMP_LIST_FIRSTPRIVATE,
1373 OMP_LIST_LASTPRIVATE,
1374 OMP_LIST_COPYPRIVATE,
1375 OMP_LIST_SHARED,
1376 OMP_LIST_COPYIN,
1377 OMP_LIST_UNIFORM,
1378 OMP_LIST_AFFINITY,
1379 OMP_LIST_ALIGNED,
1380 OMP_LIST_LINEAR,
1381 OMP_LIST_DEPEND,
1382 OMP_LIST_MAP,
1383 OMP_LIST_TO,
1384 OMP_LIST_FROM,
1385 OMP_LIST_SCAN_IN,
1386 OMP_LIST_SCAN_EX,
1387 OMP_LIST_REDUCTION,
1388 OMP_LIST_REDUCTION_INSCAN,
1389 OMP_LIST_REDUCTION_TASK,
1390 OMP_LIST_IN_REDUCTION,
1391 OMP_LIST_TASK_REDUCTION,
1392 OMP_LIST_DEVICE_RESIDENT,
1393 OMP_LIST_LINK,
1394 OMP_LIST_USE_DEVICE,
1395 OMP_LIST_CACHE,
1396 OMP_LIST_IS_DEVICE_PTR,
1397 OMP_LIST_USE_DEVICE_PTR,
1398 OMP_LIST_USE_DEVICE_ADDR,
1399 OMP_LIST_NONTEMPORAL,
1400 OMP_LIST_ALLOCATE,
1401 OMP_LIST_HAS_DEVICE_ADDR,
1402 OMP_LIST_ENTER,
1403 OMP_LIST_NUM /* Must be the last. */
1404};
1405
1406/* Because a symbol can belong to multiple namelists, they must be
1407 linked externally to the symbol itself. */
1408
1409enum gfc_omp_sched_kind
1410{
1411 OMP_SCHED_NONE,
1412 OMP_SCHED_STATIC,
1413 OMP_SCHED_DYNAMIC,
1414 OMP_SCHED_GUIDED,
1415 OMP_SCHED_RUNTIME,
1416 OMP_SCHED_AUTO
1417};
1418
1419enum gfc_omp_default_sharing
1420{
1421 OMP_DEFAULT_UNKNOWN,
1422 OMP_DEFAULT_NONE,
1423 OMP_DEFAULT_PRIVATE,
1424 OMP_DEFAULT_SHARED,
1425 OMP_DEFAULT_FIRSTPRIVATE,
1426 OMP_DEFAULT_PRESENT
1427};
1428
1429enum gfc_omp_proc_bind_kind
1430{
1431 OMP_PROC_BIND_UNKNOWN,
1432 OMP_PROC_BIND_PRIMARY,
1433 OMP_PROC_BIND_MASTER,
1434 OMP_PROC_BIND_SPREAD,
1435 OMP_PROC_BIND_CLOSE
1436};
1437
1438enum gfc_omp_cancel_kind
1439{
1440 OMP_CANCEL_UNKNOWN,
1441 OMP_CANCEL_PARALLEL,
1442 OMP_CANCEL_SECTIONS,
1443 OMP_CANCEL_DO,
1444 OMP_CANCEL_TASKGROUP
1445};
1446
1447enum gfc_omp_if_kind
1448{
1449 OMP_IF_CANCEL,
1450 OMP_IF_PARALLEL,
1451 OMP_IF_SIMD,
1452 OMP_IF_TASK,
1453 OMP_IF_TASKLOOP,
1454 OMP_IF_TARGET,
1455 OMP_IF_TARGET_DATA,
1456 OMP_IF_TARGET_UPDATE,
1457 OMP_IF_TARGET_ENTER_DATA,
1458 OMP_IF_TARGET_EXIT_DATA,
1459 OMP_IF_LAST
1460};
1461
1462enum gfc_omp_atomic_op
1463{
1464 GFC_OMP_ATOMIC_UNSET = 0,
1465 GFC_OMP_ATOMIC_UPDATE = 1,
1466 GFC_OMP_ATOMIC_READ = 2,
1467 GFC_OMP_ATOMIC_WRITE = 3,
1468 GFC_OMP_ATOMIC_MASK = 3,
1469 GFC_OMP_ATOMIC_SWAP = 16
1470};
1471
1472enum gfc_omp_requires_kind
1473{
1474 /* Keep in sync with gfc_namespace, esp. with omp_req_mem_order. */
1475 OMP_REQ_ATOMIC_MEM_ORDER_SEQ_CST = 1, /* 01 */
1476 OMP_REQ_ATOMIC_MEM_ORDER_ACQ_REL = 2, /* 10 */
1477 OMP_REQ_ATOMIC_MEM_ORDER_RELAXED = 3, /* 11 */
1478 OMP_REQ_REVERSE_OFFLOAD = (1 << 2),
1479 OMP_REQ_UNIFIED_ADDRESS = (1 << 3),
1480 OMP_REQ_UNIFIED_SHARED_MEMORY = (1 << 4),
1481 OMP_REQ_DYNAMIC_ALLOCATORS = (1 << 5),
1482 OMP_REQ_TARGET_MASK = (OMP_REQ_REVERSE_OFFLOAD
1483 | OMP_REQ_UNIFIED_ADDRESS
1484 | OMP_REQ_UNIFIED_SHARED_MEMORY),
1485 OMP_REQ_ATOMIC_MEM_ORDER_MASK = (OMP_REQ_ATOMIC_MEM_ORDER_SEQ_CST
1486 | OMP_REQ_ATOMIC_MEM_ORDER_ACQ_REL
1487 | OMP_REQ_ATOMIC_MEM_ORDER_RELAXED)
1488};
1489
1490enum gfc_omp_memorder
1491{
1492 OMP_MEMORDER_UNSET,
1493 OMP_MEMORDER_SEQ_CST,
1494 OMP_MEMORDER_ACQ_REL,
1495 OMP_MEMORDER_RELEASE,
1496 OMP_MEMORDER_ACQUIRE,
1497 OMP_MEMORDER_RELAXED
1498};
1499
1500enum gfc_omp_bind_type
1501{
1502 OMP_BIND_UNSET,
1503 OMP_BIND_TEAMS,
1504 OMP_BIND_PARALLEL,
1505 OMP_BIND_THREAD
1506};
1507
1508typedef struct gfc_omp_clauses
1509{
1510 gfc_omp_namelist *lists[OMP_LIST_NUM];
1511 struct gfc_expr *if_expr;
1512 struct gfc_expr *final_expr;
1513 struct gfc_expr *num_threads;
1514 struct gfc_expr *chunk_size;
1515 struct gfc_expr *safelen_expr;
1516 struct gfc_expr *simdlen_expr;
1517 struct gfc_expr *num_teams_lower;
1518 struct gfc_expr *num_teams_upper;
1519 struct gfc_expr *device;
1520 struct gfc_expr *thread_limit;
1521 struct gfc_expr *grainsize;
1522 struct gfc_expr *filter;
1523 struct gfc_expr *hint;
1524 struct gfc_expr *num_tasks;
1525 struct gfc_expr *priority;
1526 struct gfc_expr *detach;
1527 struct gfc_expr *depobj;
1528 struct gfc_expr *if_exprs[OMP_IF_LAST];
1529 struct gfc_expr *dist_chunk_size;
1530 struct gfc_expr *message;
1531 const char *critical_name;
1532 enum gfc_omp_default_sharing default_sharing;
1533 enum gfc_omp_atomic_op atomic_op;
1534 enum gfc_omp_defaultmap defaultmap[OMP_DEFAULTMAP_CAT_NUM];
1535 int collapse, orderedc;
1536 unsigned nowait:1, ordered:1, untied:1, mergeable:1, ancestor:1;
1537 unsigned inbranch:1, notinbranch:1, nogroup:1;
1538 unsigned sched_simd:1, sched_monotonic:1, sched_nonmonotonic:1;
1539 unsigned simd:1, threads:1, depend_source:1, destroy:1, order_concurrent:1;
1540 unsigned order_unconstrained:1, order_reproducible:1, capture:1;
1541 unsigned grainsize_strict:1, num_tasks_strict:1, compare:1, weak:1;
1542 unsigned non_rectangular:1;
1543 ENUM_BITFIELD (gfc_omp_sched_kind) sched_kind:3;
1544 ENUM_BITFIELD (gfc_omp_device_type) device_type:2;
1545 ENUM_BITFIELD (gfc_omp_memorder) memorder:3;
1546 ENUM_BITFIELD (gfc_omp_memorder) fail:3;
1547 ENUM_BITFIELD (gfc_omp_cancel_kind) cancel:3;
1548 ENUM_BITFIELD (gfc_omp_proc_bind_kind) proc_bind:3;
1549 ENUM_BITFIELD (gfc_omp_depend_op) depobj_update:4;
1550 ENUM_BITFIELD (gfc_omp_bind_type) bind:2;
1551 ENUM_BITFIELD (gfc_omp_at_type) at:2;
1552 ENUM_BITFIELD (gfc_omp_severity_type) severity:2;
1553 ENUM_BITFIELD (gfc_omp_sched_kind) dist_sched_kind:3;
1554
1555 /* OpenACC. */
1556 struct gfc_expr *async_expr;
1557 struct gfc_expr *gang_static_expr;
1558 struct gfc_expr *gang_num_expr;
1559 struct gfc_expr *worker_expr;
1560 struct gfc_expr *vector_expr;
1561 struct gfc_expr *num_gangs_expr;
1562 struct gfc_expr *num_workers_expr;
1563 struct gfc_expr *vector_length_expr;
1564 gfc_expr_list *wait_list;
1565 gfc_expr_list *tile_list;
1566 unsigned async:1, gang:1, worker:1, vector:1, seq:1, independent:1;
1567 unsigned par_auto:1, gang_static:1;
1568 unsigned if_present:1, finalize:1;
1569 unsigned nohost:1;
1570 locus loc;
1571}
1572gfc_omp_clauses;
1573
1574#define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1575
1576
1577/* Node in the linked list used for storing !$oacc declare constructs. */
1578
1579typedef struct gfc_oacc_declare
1580{
1581 struct gfc_oacc_declare *next;
1582 bool module_var;
1583 gfc_omp_clauses *clauses;
1584 locus loc;
1585}
1586gfc_oacc_declare;
1587
1588#define gfc_get_oacc_declare() XCNEW (gfc_oacc_declare)
1589
1590
1591/* Node in the linked list used for storing !$omp declare simd constructs. */
1592
1593typedef struct gfc_omp_declare_simd
1594{
1595 struct gfc_omp_declare_simd *next;
1596 locus where; /* Where the !$omp declare simd construct occurred. */
1597
1598 gfc_symbol *proc_name;
1599
1600 gfc_omp_clauses *clauses;
1601}
1602gfc_omp_declare_simd;
1603#define gfc_get_omp_declare_simd() XCNEW (gfc_omp_declare_simd)
1604
1605
1606enum gfc_omp_trait_property_kind
1607{
1608 CTX_PROPERTY_NONE,
1609 CTX_PROPERTY_USER,
1610 CTX_PROPERTY_NAME_LIST,
1611 CTX_PROPERTY_ID,
1612 CTX_PROPERTY_EXPR,
1613 CTX_PROPERTY_SIMD
1614};
1615
1616typedef struct gfc_omp_trait_property
1617{
1618 struct gfc_omp_trait_property *next;
1619 enum gfc_omp_trait_property_kind property_kind;
1620 bool is_name : 1;
1621
1622 union
1623 {
1624 gfc_expr *expr;
1625 gfc_symbol *sym;
1626 gfc_omp_clauses *clauses;
1627 char *name;
1628 };
1629} gfc_omp_trait_property;
1630#define gfc_get_omp_trait_property() XCNEW (gfc_omp_trait_property)
1631
1632typedef struct gfc_omp_selector
1633{
1634 struct gfc_omp_selector *next;
1635
1636 char *trait_selector_name;
1637 gfc_expr *score;
1638 struct gfc_omp_trait_property *properties;
1639} gfc_omp_selector;
1640#define gfc_get_omp_selector() XCNEW (gfc_omp_selector)
1641
1642typedef struct gfc_omp_set_selector
1643{
1644 struct gfc_omp_set_selector *next;
1645
1646 const char *trait_set_selector_name;
1647 struct gfc_omp_selector *trait_selectors;
1648} gfc_omp_set_selector;
1649#define gfc_get_omp_set_selector() XCNEW (gfc_omp_set_selector)
1650
1651
1652/* Node in the linked list used for storing !$omp declare variant
1653 constructs. */
1654
1655typedef struct gfc_omp_declare_variant
1656{
1657 struct gfc_omp_declare_variant *next;
1658 locus where; /* Where the !$omp declare variant construct occurred. */
1659
1660 struct gfc_symtree *base_proc_symtree;
1661 struct gfc_symtree *variant_proc_symtree;
1662
1663 gfc_omp_set_selector *set_selectors;
1664
1665 bool checked_p : 1; /* Set if previously checked for errors. */
1666 bool error_p : 1; /* Set if error found in directive. */
1667}
1668gfc_omp_declare_variant;
1669#define gfc_get_omp_declare_variant() XCNEW (gfc_omp_declare_variant)
1670
1671
1672typedef struct gfc_omp_udr
1673{
1674 struct gfc_omp_udr *next;
1675 locus where; /* Where the !$omp declare reduction construct occurred. */
1676
1677 const char *name;
1678 gfc_typespec ts;
1679 gfc_omp_reduction_op rop;
1680
1681 struct gfc_symbol *omp_out;
1682 struct gfc_symbol *omp_in;
1683 struct gfc_namespace *combiner_ns;
1684
1685 struct gfc_symbol *omp_priv;
1686 struct gfc_symbol *omp_orig;
1687 struct gfc_namespace *initializer_ns;
1688}
1689gfc_omp_udr;
1690#define gfc_get_omp_udr() XCNEW (gfc_omp_udr)
1691
1692typedef struct gfc_omp_namelist_udr
1693{
1694 struct gfc_omp_udr *udr;
1695 struct gfc_code *combiner;
1696 struct gfc_code *initializer;
1697}
1698gfc_omp_namelist_udr;
1699#define gfc_get_omp_namelist_udr() XCNEW (gfc_omp_namelist_udr)
1700
1701/* The gfc_st_label structure is a BBT attached to a namespace that
1702 records the usage of statement labels within that space. */
1703
1704typedef struct gfc_st_label
1705{
1706 BBT_HEADER(gfc_st_label);
1707
1708 int value;
1709
1710 gfc_sl_type defined, referenced;
1711
1712 struct gfc_expr *format;
1713
1714 tree backend_decl;
1715
1716 locus where;
1717
1718 gfc_namespace *ns;
1719}
1720gfc_st_label;
1721
1722
1723/* gfc_interface()-- Interfaces are lists of symbols strung together. */
1724typedef struct gfc_interface
1725{
1726 struct gfc_symbol *sym;
1727 locus where;
1728 struct gfc_interface *next;
1729}
1730gfc_interface;
1731
1732#define gfc_get_interface() XCNEW (gfc_interface)
1733
1734/* User operator nodes. These are like stripped down symbols. */
1735typedef struct
1736{
1737 const char *name;
1738
1739 gfc_interface *op;
1740 struct gfc_namespace *ns;
1741 gfc_access access;
1742}
1743gfc_user_op;
1744
1745
1746/* A list of specific bindings that are associated with a generic spec. */
1747typedef struct gfc_tbp_generic
1748{
1749 /* The parser sets specific_st, upon resolution we look for the corresponding
1750 gfc_typebound_proc and set specific for further use. */
1751 struct gfc_symtree* specific_st;
1752 struct gfc_typebound_proc* specific;
1753
1754 struct gfc_tbp_generic* next;
1755 bool is_operator;
1756}
1757gfc_tbp_generic;
1758
1759#define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1760
1761
1762/* Data needed for type-bound procedures. */
1763typedef struct gfc_typebound_proc
1764{
1765 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1766
1767 union
1768 {
1769 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1770 gfc_tbp_generic* generic;
1771 }
1772 u;
1773
1774 gfc_access access;
1775 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1776
1777 /* The overridden type-bound proc (or GENERIC with this name in the
1778 parent-type) or NULL if non. */
1779 struct gfc_typebound_proc* overridden;
1780
1781 /* Once resolved, we use the position of pass_arg in the formal arglist of
1782 the binding-target procedure to identify it. The first argument has
1783 number 1 here, the second 2, and so on. */
1784 unsigned pass_arg_num;
1785
1786 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1787 unsigned non_overridable:1;
1788 unsigned deferred:1;
1789 unsigned is_generic:1;
1790 unsigned function:1, subroutine:1;
1791 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1792 unsigned ppc:1;
1793}
1794gfc_typebound_proc;
1795
1796
1797/* Symbol nodes. These are important things. They are what the
1798 standard refers to as "entities". The possibly multiple names that
1799 refer to the same entity are accomplished by a binary tree of
1800 symtree structures that is balanced by the red-black method-- more
1801 than one symtree node can point to any given symbol. */
1802
1803typedef struct gfc_symbol
1804{
1805 const char *name; /* Primary name, before renaming */
1806 const char *module; /* Module this symbol came from */
1807 locus declared_at;
1808
1809 gfc_typespec ts;
1810 symbol_attribute attr;
1811
1812 /* The formal member points to the formal argument list if the
1813 symbol is a function or subroutine name. If the symbol is a
1814 generic name, the generic member points to the list of
1815 interfaces. */
1816
1817 gfc_interface *generic;
1818 gfc_access component_access;
1819
1820 gfc_formal_arglist *formal;
1821 struct gfc_namespace *formal_ns;
1822 struct gfc_namespace *f2k_derived;
1823
1824 /* List of PDT parameter expressions */
1825 struct gfc_actual_arglist *param_list;
1826
1827 struct gfc_expr *value; /* Parameter/Initializer value */
1828 gfc_array_spec *as;
1829 struct gfc_symbol *result; /* function result symbol */
1830 gfc_component *components; /* Derived type components */
1831
1832 /* Defined only for Cray pointees; points to their pointer. */
1833 struct gfc_symbol *cp_pointer;
1834
1835 int entry_id; /* Used in resolve.cc for entries. */
1836
1837 /* CLASS hashed name for declared and dynamic types in the class. */
1838 int hash_value;
1839
1840 struct gfc_symbol *common_next; /* Links for COMMON syms */
1841
1842 /* This is only used for pointer comparisons to check if symbols
1843 are in the same common block.
1844 In opposition to common_block, the common_head pointer takes into account
1845 equivalences: if A is in a common block C and A and B are in equivalence,
1846 then both A and B have common_head pointing to C, while A's common_block
1847 points to C and B's is NULL. */
1848 struct gfc_common_head* common_head;
1849
1850 /* Make sure setup code for dummy arguments is generated in the correct
1851 order. */
1852 int dummy_order;
1853
1854 gfc_namelist *namelist, *namelist_tail;
1855
1856 /* Change management fields. Symbols that might be modified by the
1857 current statement have the mark member nonzero. Of these symbols,
1858 symbols with old_symbol equal to NULL are symbols created within
1859 the current statement. Otherwise, old_symbol points to a copy of
1860 the old symbol. gfc_new is used in symbol.cc to flag new symbols.
1861 comp_mark is used to indicate variables which have component accesses
1862 in OpenMP/OpenACC directive clauses. */
1863 struct gfc_symbol *old_symbol;
1864 unsigned mark:1, comp_mark:1, gfc_new:1;
1865
1866 /* The tlink field is used in the front end to carry the module
1867 declaration of separate module procedures so that the characteristics
1868 can be compared with the corresponding declaration in a submodule. In
1869 translation this field carries a linked list of symbols that require
1870 deferred initialization. */
1871 struct gfc_symbol *tlink;
1872
1873 /* Nonzero if all equivalences associated with this symbol have been
1874 processed. */
1875 unsigned equiv_built:1;
1876 /* Set if this variable is used as an index name in a FORALL. */
1877 unsigned forall_index:1;
1878 /* Set if the symbol is used in a function result specification . */
1879 unsigned fn_result_spec:1;
1880 /* Used to avoid multiple resolutions of a single symbol. */
1881 /* = 2 if this has already been resolved as an intrinsic,
1882 in gfc_resolve_intrinsic,
1883 = 1 if it has been resolved in resolve_symbol. */
1884 unsigned resolve_symbol_called:2;
1885 /* Set if this is a module function or subroutine with the
1886 abreviated declaration in a submodule. */
1887 unsigned abr_modproc_decl:1;
1888 /* Set if a previous error or warning has occurred and no other
1889 should be reported. */
1890 unsigned error:1;
1891 /* Set if the dummy argument of a procedure could be an array despite
1892 being called with a scalar actual argument. */
1893 unsigned maybe_array:1;
1894 /* Set if this should be passed by value, but is not a VALUE argument
1895 according to the Fortran standard. */
1896 unsigned pass_as_value:1;
1897
1898 int refs;
1899 struct gfc_namespace *ns; /* namespace containing this symbol */
1900
1901 tree backend_decl;
1902
1903 /* Identity of the intrinsic module the symbol comes from, or
1904 INTMOD_NONE if it's not imported from a intrinsic module. */
1905 intmod_id from_intmod;
1906 /* Identity of the symbol from intrinsic modules, from enums maintained
1907 separately by each intrinsic module. Used together with from_intmod,
1908 it uniquely identifies a symbol from an intrinsic module. */
1909 int intmod_sym_id;
1910
1911 /* This may be repetitive, since the typespec now has a binding
1912 label field. */
1913 const char* binding_label;
1914 /* Store a reference to the common_block, if this symbol is in one. */
1915 struct gfc_common_head *common_block;
1916
1917 /* Link to corresponding association-list if this is an associate name. */
1918 struct gfc_association_list *assoc;
1919
1920 /* Link to next entry in derived type list */
1921 struct gfc_symbol *dt_next;
1922}
1923gfc_symbol;
1924
1925
1926struct gfc_undo_change_set
1927{
1928 vec<gfc_symbol *> syms;
1929 vec<gfc_typebound_proc *> tbps;
1930 gfc_undo_change_set *previous;
1931};
1932
1933
1934/* This structure is used to keep track of symbols in common blocks. */
1935typedef struct gfc_common_head
1936{
1937 locus where;
1938 char use_assoc, saved, threadprivate;
1939 unsigned char omp_declare_target : 1;
1940 unsigned char omp_declare_target_link : 1;
1941 ENUM_BITFIELD (gfc_omp_device_type) omp_device_type:2;
1942 /* Provide sufficient space to hold "symbol.symbol.eq.1234567890". */
1943 char name[2*GFC_MAX_SYMBOL_LEN + 1 + 14 + 1];
1944 struct gfc_symbol *head;
1945 const char* binding_label;
1946 int is_bind_c;
1947 int refs;
1948}
1949gfc_common_head;
1950
1951#define gfc_get_common_head() XCNEW (gfc_common_head)
1952
1953
1954/* A list of all the alternate entry points for a procedure. */
1955
1956typedef struct gfc_entry_list
1957{
1958 /* The symbol for this entry point. */
1959 gfc_symbol *sym;
1960 /* The zero-based id of this entry point. */
1961 int id;
1962 /* The LABEL_EXPR marking this entry point. */
1963 tree label;
1964 /* The next item in the list. */
1965 struct gfc_entry_list *next;
1966}
1967gfc_entry_list;
1968
1969#define gfc_get_entry_list() XCNEW (gfc_entry_list)
1970
1971/* Lists of rename info for the USE statement. */
1972
1973typedef struct gfc_use_rename
1974{
1975 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1976 struct gfc_use_rename *next;
1977 int found;
1978 gfc_intrinsic_op op;
1979 locus where;
1980}
1981gfc_use_rename;
1982
1983#define gfc_get_use_rename() XCNEW (gfc_use_rename);
1984
1985/* A list of all USE statements in a namespace. */
1986
1987typedef struct gfc_use_list
1988{
1989 const char *module_name;
1990 const char *submodule_name;
1991 bool intrinsic;
1992 bool non_intrinsic;
1993 bool only_flag;
1994 struct gfc_use_rename *rename;
1995 locus where;
1996 /* Next USE statement. */
1997 struct gfc_use_list *next;
1998}
1999gfc_use_list;
2000
2001#define gfc_get_use_list() XCNEW (gfc_use_list)
2002
2003/* Within a namespace, symbols are pointed to by symtree nodes that
2004 are linked together in a balanced binary tree. There can be
2005 several symtrees pointing to the same symbol node via USE
2006 statements. */
2007
2008typedef struct gfc_symtree
2009{
2010 BBT_HEADER (gfc_symtree);
2011 const char *name;
2012 int ambiguous;
2013 union
2014 {
2015 gfc_symbol *sym; /* Symbol associated with this node */
2016 gfc_user_op *uop;
2017 gfc_common_head *common;
2018 gfc_typebound_proc *tb;
2019 gfc_omp_udr *omp_udr;
2020 }
2021 n;
2022}
2023gfc_symtree;
2024
2025/* A list of all derived types. */
2026extern gfc_symbol *gfc_derived_types;
2027
2028typedef struct gfc_oacc_routine_name
2029{
2030 struct gfc_symbol *sym;
2031 struct gfc_omp_clauses *clauses;
2032 struct gfc_oacc_routine_name *next;
2033 locus loc;
2034}
2035gfc_oacc_routine_name;
2036
2037#define gfc_get_oacc_routine_name() XCNEW (gfc_oacc_routine_name)
2038
2039/* Node in linked list to see what has already been finalized
2040 earlier. */
2041
2042typedef struct gfc_was_finalized {
2043 gfc_expr *e;
2044 gfc_component *c;
2045 struct gfc_was_finalized *next;
2046}
2047gfc_was_finalized;
2048
2049/* A namespace describes the contents of procedure, module, interface block
2050 or BLOCK construct. */
2051/* ??? Anything else use these? */
2052
2053typedef struct gfc_namespace
2054{
2055 /* Tree containing all the symbols in this namespace. */
2056 gfc_symtree *sym_root;
2057 /* Tree containing all the user-defined operators in the namespace. */
2058 gfc_symtree *uop_root;
2059 /* Tree containing all the common blocks. */
2060 gfc_symtree *common_root;
2061 /* Tree containing all the OpenMP user defined reductions. */
2062 gfc_symtree *omp_udr_root;
2063
2064 /* Tree containing type-bound procedures. */
2065 gfc_symtree *tb_sym_root;
2066 /* Type-bound user operators. */
2067 gfc_symtree *tb_uop_root;
2068 /* For derived-types, store type-bound intrinsic operators here. */
2069 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
2070 /* Linked list of finalizer procedures. */
2071 struct gfc_finalizer *finalizers;
2072
2073 /* If set_flag[letter] is set, an implicit type has been set for letter. */
2074 int set_flag[GFC_LETTERS];
2075 /* Keeps track of the implicit types associated with the letters. */
2076 gfc_typespec default_type[GFC_LETTERS];
2077 /* Store the positions of IMPLICIT statements. */
2078 locus implicit_loc[GFC_LETTERS];
2079
2080 /* If this is a namespace of a procedure, this points to the procedure. */
2081 struct gfc_symbol *proc_name;
2082 /* If this is the namespace of a unit which contains executable
2083 code, this points to it. */
2084 struct gfc_code *code;
2085
2086 /* Points to the equivalences set up in this namespace. */
2087 struct gfc_equiv *equiv, *old_equiv;
2088
2089 /* Points to the equivalence groups produced by trans_common. */
2090 struct gfc_equiv_list *equiv_lists;
2091
2092 gfc_interface *op[GFC_INTRINSIC_OPS];
2093
2094 /* Points to the parent namespace, i.e. the namespace of a module or
2095 procedure in which the procedure belonging to this namespace is
2096 contained. The parent namespace points to this namespace either
2097 directly via CONTAINED, or indirectly via the chain built by
2098 SIBLING. */
2099 struct gfc_namespace *parent;
2100 /* CONTAINED points to the first contained namespace. Sibling
2101 namespaces are chained via SIBLING. */
2102 struct gfc_namespace *contained, *sibling;
2103
2104 gfc_common_head blank_common;
2105 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
2106
2107 gfc_st_label *st_labels;
2108 /* This list holds information about all the data initializers in
2109 this namespace. */
2110 struct gfc_data *data, *old_data;
2111
2112 /* !$ACC DECLARE. */
2113 gfc_oacc_declare *oacc_declare;
2114
2115 /* !$ACC ROUTINE clauses. */
2116 gfc_omp_clauses *oacc_routine_clauses;
2117
2118 /* !$ACC TASK AFFINITY iterator symbols. */
2119 gfc_symbol *omp_affinity_iterators;
2120
2121 /* !$ACC ROUTINE names. */
2122 gfc_oacc_routine_name *oacc_routine_names;
2123
2124 gfc_charlen *cl_list;
2125
2126 gfc_symbol *derived_types;
2127
2128 int save_all, seen_save, seen_implicit_none;
2129
2130 /* Normally we don't need to refcount namespaces. However when we read
2131 a module containing a function with multiple entry points, this
2132 will appear as several functions with the same formal namespace. */
2133 int refs;
2134
2135 /* A list of all alternate entry points to this procedure (or NULL). */
2136 gfc_entry_list *entries;
2137
2138 /* A list of USE statements in this namespace. */
2139 gfc_use_list *use_stmts;
2140
2141 /* Linked list of !$omp declare simd constructs. */
2142 struct gfc_omp_declare_simd *omp_declare_simd;
2143
2144 /* Linked list of !$omp declare variant constructs. */
2145 struct gfc_omp_declare_variant *omp_declare_variant;
2146
2147 /* A hash set for the gfc expressions that have already
2148 been finalized in this namespace. */
2149
2150 gfc_was_finalized *was_finalized;
2151
2152 /* Set to 1 if namespace is a BLOCK DATA program unit. */
2153 unsigned is_block_data:1;
2154
2155 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
2156 unsigned has_import_set:1;
2157
2158 /* Set to 1 if the namespace uses "IMPLICT NONE (export)". */
2159 unsigned has_implicit_none_export:1;
2160
2161 /* Set to 1 if resolved has been called for this namespace.
2162 Holds -1 during resolution. */
2163 signed resolved:2;
2164
2165 /* Set when resolve_types has been called for this namespace. */
2166 unsigned types_resolved:1;
2167
2168 /* Set to 1 if code has been generated for this namespace. */
2169 unsigned translated:1;
2170
2171 /* Set to 1 if symbols in this namespace should be 'construct entities',
2172 i.e. for BLOCK local variables. */
2173 unsigned construct_entities:1;
2174
2175 /* Set to 1 for !$OMP DECLARE REDUCTION namespaces. */
2176 unsigned omp_udr_ns:1;
2177
2178 /* Set to 1 for !$ACC ROUTINE namespaces. */
2179 unsigned oacc_routine:1;
2180
2181 /* Set to 1 if there are any calls to procedures with implicit interface. */
2182 unsigned implicit_interface_calls:1;
2183
2184 /* OpenMP requires. */
2185 unsigned omp_requires:6;
2186 unsigned omp_target_seen:1;
2187}
2188gfc_namespace;
2189
2190extern gfc_namespace *gfc_current_ns;
2191extern gfc_namespace *gfc_global_ns_list;
2192
2193/* Global symbols are symbols of global scope. Currently we only use
2194 this to detect collisions already when parsing.
2195 TODO: Extend to verify procedure calls. */
2196
2197enum gfc_symbol_type
2198{
2199 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
2200 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
2201};
2202
2203typedef struct gfc_gsymbol
2204{
2205 BBT_HEADER(gfc_gsymbol);
2206
2207 const char *name;
2208 const char *sym_name;
2209 const char *mod_name;
2210 const char *binding_label;
2211 enum gfc_symbol_type type;
2212
2213 int defined, used;
2214 bool bind_c;
2215 locus where;
2216 gfc_namespace *ns;
2217}
2218gfc_gsymbol;
2219
2220extern gfc_gsymbol *gfc_gsym_root;
2221
2222/* Information on interfaces being built. */
2223typedef struct
2224{
2225 interface_type type;
2226 gfc_symbol *sym;
2227 gfc_namespace *ns;
2228 gfc_user_op *uop;
2229 gfc_intrinsic_op op;
2230}
2231gfc_interface_info;
2232
2233extern gfc_interface_info current_interface;
2234
2235
2236/* Array reference. */
2237
2238enum gfc_array_ref_dimen_type
2239{
2240 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_THIS_IMAGE, DIMEN_UNKNOWN
2241};
2242
2243typedef struct gfc_array_ref
2244{
2245 ar_type type;
2246 int dimen; /* # of components in the reference */
2247 int codimen;
2248 bool in_allocate; /* For coarray checks. */
2249 gfc_expr *team;
2250 gfc_expr *stat;
2251 locus where;
2252 gfc_array_spec *as;
2253
2254 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
2255 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
2256 *stride[GFC_MAX_DIMENSIONS];
2257
2258 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
2259}
2260gfc_array_ref;
2261
2262#define gfc_get_array_ref() XCNEW (gfc_array_ref)
2263
2264
2265/* Component reference nodes. A variable is stored as an expression
2266 node that points to the base symbol. After that, a singly linked
2267 list of component reference nodes gives the variable's complete
2268 resolution. The array_ref component may be present and comes
2269 before the component component. */
2270
2271enum ref_type
2272 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING, REF_INQUIRY };
2273
2274enum inquiry_type
2275 { INQUIRY_RE, INQUIRY_IM, INQUIRY_KIND, INQUIRY_LEN };
2276
2277typedef struct gfc_ref
2278{
2279 ref_type type;
2280
2281 union
2282 {
2283 struct gfc_array_ref ar;
2284
2285 struct
2286 {
2287 gfc_component *component;
2288 gfc_symbol *sym;
2289 }
2290 c;
2291
2292 struct
2293 {
2294 struct gfc_expr *start, *end; /* Substring */
2295 gfc_charlen *length;
2296 }
2297 ss;
2298
2299 inquiry_type i;
2300
2301 }
2302 u;
2303
2304 struct gfc_ref *next;
2305}
2306gfc_ref;
2307
2308#define gfc_get_ref() XCNEW (gfc_ref)
2309
2310
2311/* Structures representing intrinsic symbols and their arguments lists. */
2312typedef struct gfc_intrinsic_arg
2313{
2314 char name[GFC_MAX_SYMBOL_LEN + 1];
2315
2316 gfc_typespec ts;
2317 unsigned optional:1, value:1;
2318 ENUM_BITFIELD (sym_intent) intent:2;
2319
2320 struct gfc_intrinsic_arg *next;
2321}
2322gfc_intrinsic_arg;
2323
2324
2325typedef enum {
2326 GFC_UNDEFINED_DUMMY_ARG = 0,
2327 GFC_INTRINSIC_DUMMY_ARG,
2328 GFC_NON_INTRINSIC_DUMMY_ARG
2329}
2330gfc_dummy_arg_intrinsicness;
2331
2332/* dummy arg of either an intrinsic or a user-defined procedure. */
2333struct gfc_dummy_arg
2334{
2335 gfc_dummy_arg_intrinsicness intrinsicness;
2336
2337 union {
2338 gfc_intrinsic_arg *intrinsic;
2339 gfc_formal_arglist *non_intrinsic;
2340 } u;
2341};
2342
2343#define gfc_get_dummy_arg() XCNEW (gfc_dummy_arg)
2344
2345
2346const char * gfc_dummy_arg_get_name (gfc_dummy_arg &);
2347const gfc_typespec & gfc_dummy_arg_get_typespec (gfc_dummy_arg &);
2348bool gfc_dummy_arg_is_optional (gfc_dummy_arg &);
2349
2350
2351/* Specifies the various kinds of check functions used to verify the
2352 argument lists of intrinsic functions. fX with X an integer refer
2353 to check functions of intrinsics with X arguments. f1m is used for
2354 the MAX and MIN intrinsics which can have an arbitrary number of
2355 arguments, f4ml is used for the MINLOC and MAXLOC intrinsics as
2356 these have special semantics. */
2357
2358typedef union
2359{
2360 bool (*f0)(void);
2361 bool (*f1)(struct gfc_expr *);
2362 bool (*f1m)(gfc_actual_arglist *);
2363 bool (*f2)(struct gfc_expr *, struct gfc_expr *);
2364 bool (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2365 bool (*f5ml)(gfc_actual_arglist *);
2366 bool (*f6fl)(gfc_actual_arglist *);
2367 bool (*f3red)(gfc_actual_arglist *);
2368 bool (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2369 struct gfc_expr *);
2370 bool (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2371 struct gfc_expr *, struct gfc_expr *);
2372}
2373gfc_check_f;
2374
2375/* Like gfc_check_f, these specify the type of the simplification
2376 function associated with an intrinsic. The fX are just like in
2377 gfc_check_f. cc is used for type conversion functions. */
2378
2379typedef union
2380{
2381 struct gfc_expr *(*f0)(void);
2382 struct gfc_expr *(*f1)(struct gfc_expr *);
2383 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
2384 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
2385 struct gfc_expr *);
2386 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
2387 struct gfc_expr *, struct gfc_expr *);
2388 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
2389 struct gfc_expr *, struct gfc_expr *,
2390 struct gfc_expr *);
2391 struct gfc_expr *(*f6)(struct gfc_expr *, struct gfc_expr *,
2392 struct gfc_expr *, struct gfc_expr *,
2393 struct gfc_expr *, struct gfc_expr *);
2394 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
2395}
2396gfc_simplify_f;
2397
2398/* Again like gfc_check_f, these specify the type of the resolution
2399 function associated with an intrinsic. The fX are just like in
2400 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
2401
2402typedef union
2403{
2404 void (*f0)(struct gfc_expr *);
2405 void (*f1)(struct gfc_expr *, struct gfc_expr *);
2406 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
2407 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2408 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2409 struct gfc_expr *);
2410 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2411 struct gfc_expr *, struct gfc_expr *);
2412 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2413 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2414 void (*f6)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2415 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2416 struct gfc_expr *);
2417 void (*s1)(struct gfc_code *);
2418}
2419gfc_resolve_f;
2420
2421
2422typedef struct gfc_intrinsic_sym
2423{
2424 const char *name, *lib_name;
2425 gfc_intrinsic_arg *formal;
2426 gfc_typespec ts;
2427 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
2428 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1,
2429 from_module:1, vararg:1;
2430
2431 int standard;
2432
2433 gfc_simplify_f simplify;
2434 gfc_check_f check;
2435 gfc_resolve_f resolve;
2436 struct gfc_intrinsic_sym *specific_head, *next;
2437 gfc_isym_id id;
2438
2439}
2440gfc_intrinsic_sym;
2441
2442
2443/* Expression nodes. The expression node types deserve explanations,
2444 since the last couple can be easily misconstrued:
2445
2446 EXPR_OP Operator node pointing to one or two other nodes
2447 EXPR_FUNCTION Function call, symbol points to function's name
2448 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
2449 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
2450 which expresses structure, array and substring refs.
2451 EXPR_NULL The NULL pointer value (which also has a basic type).
2452 EXPR_SUBSTRING A substring of a constant string
2453 EXPR_STRUCTURE A structure constructor
2454 EXPR_ARRAY An array constructor.
2455 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
2456 component or type-bound procedure. */
2457
2458#include <mpfr.h>
2459#include <mpc.h>
2460#define GFC_RND_MODE MPFR_RNDN
2461#define GFC_MPC_RND_MODE MPC_RNDNN
2462
2463typedef splay_tree gfc_constructor_base;
2464
2465
2466/* This should be an unsigned variable of type size_t. But to handle
2467 compiling to a 64-bit target from a 32-bit host, we need to use a
2468 HOST_WIDE_INT. Also, occasionally the string length field is used
2469 as a flag with values -1 and -2, see e.g. gfc_add_assign_aux_vars.
2470 So it needs to be signed. */
2471typedef HOST_WIDE_INT gfc_charlen_t;
2472
2473typedef struct gfc_expr
2474{
2475 expr_t expr_type;
2476
2477 gfc_typespec ts; /* These two refer to the overall expression */
2478
2479 int rank; /* 0 indicates a scalar, -1 an assumed-rank array. */
2480 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
2481
2482 /* Nonnull for functions and structure constructors, may also used to hold the
2483 base-object for component calls. */
2484 gfc_symtree *symtree;
2485
2486 gfc_ref *ref;
2487
2488 locus where;
2489
2490 /* Used to store the base expression in component calls, when the expression
2491 is not a variable. */
2492 struct gfc_expr *base_expr;
2493
2494 /* is_snan denotes a signalling not-a-number. */
2495 unsigned int is_snan : 1;
2496
2497 /* Sometimes, when an error has been emitted, it is necessary to prevent
2498 it from recurring. */
2499 unsigned int error : 1;
2500
2501 /* Mark an expression where a user operator has been substituted by
2502 a function call in interface.cc(gfc_extend_expr). */
2503 unsigned int user_operator : 1;
2504
2505 /* Mark an expression as being a MOLD argument of ALLOCATE. */
2506 unsigned int mold : 1;
2507
2508 /* Will require finalization after use. */
2509 unsigned int must_finalize : 1;
2510
2511 /* Set this if no range check should be performed on this expression. */
2512
2513 unsigned int no_bounds_check : 1;
2514
2515 /* Set this if a matmul expression has already been evaluated for conversion
2516 to a BLAS call. */
2517
2518 unsigned int external_blas : 1;
2519
2520 /* Set this if resolution has already happened. It could be harmful
2521 if done again. */
2522
2523 unsigned int do_not_resolve_again : 1;
2524
2525 /* Set this if no warning should be given somewhere in a lower level. */
2526
2527 unsigned int do_not_warn : 1;
2528
2529 /* Set this if the expression came from expanding an array constructor. */
2530 unsigned int from_constructor : 1;
2531
2532 /* If an expression comes from a Hollerith constant or compile-time
2533 evaluation of a transfer statement, it may have a prescribed target-
2534 memory representation, and these cannot always be backformed from
2535 the value. */
2536 struct
2537 {
2538 gfc_charlen_t length;
2539 char *string;
2540 }
2541 representation;
2542
2543 struct
2544 {
2545 int len; /* Length of BOZ string without terminating NULL. */
2546 int rdx; /* Radix of BOZ. */
2547 char *str; /* BOZ string with NULL terminating character. */
2548 }
2549 boz;
2550
2551 union
2552 {
2553 int logical;
2554
2555 io_kind iokind;
2556
2557 mpz_t integer;
2558
2559 mpfr_t real;
2560
2561 mpc_t complex;
2562
2563 struct
2564 {
2565 gfc_intrinsic_op op;
2566 gfc_user_op *uop;
2567 struct gfc_expr *op1, *op2;
2568 }
2569 op;
2570
2571 struct
2572 {
2573 gfc_actual_arglist *actual;
2574 const char *name; /* Points to the ultimate name of the function */
2575 gfc_intrinsic_sym *isym;
2576 gfc_symbol *esym;
2577 }
2578 function;
2579
2580 struct
2581 {
2582 gfc_actual_arglist* actual;
2583 const char* name;
2584 /* Base-object, whose component was called. NULL means that it should
2585 be taken from symtree/ref. */
2586 struct gfc_expr* base_object;
2587 gfc_typebound_proc* tbp; /* Should overlap with esym. */
2588
2589 /* For type-bound operators, we want to call PASS procedures but already
2590 have the full arglist; mark this, so that it is not extended by the
2591 PASS argument. */
2592 unsigned ignore_pass:1;
2593
2594 /* Do assign-calls rather than calls, that is appropriate dependency
2595 checking. */
2596 unsigned assign:1;
2597 }
2598 compcall;
2599
2600 struct
2601 {
2602 gfc_charlen_t length;
2603 gfc_char_t *string;
2604 }
2605 character;
2606
2607 gfc_constructor_base constructor;
2608 }
2609 value;
2610
2611 /* Used to store PDT expression lists associated with expressions. */
2612 gfc_actual_arglist *param_list;
2613
2614}
2615gfc_expr;
2616
2617
2618#define gfc_get_shape(rank) (XCNEWVEC (mpz_t, (rank)))
2619
2620/* Structures for information associated with different kinds of
2621 numbers. The first set of integer parameters define all there is
2622 to know about a particular kind. The rest of the elements are
2623 computed from the first elements. */
2624
2625typedef struct
2626{
2627 /* Values really representable by the target. */
2628 mpz_t huge, pedantic_min_int, min_int;
2629
2630 int kind, radix, digits, bit_size, range;
2631
2632 /* True if the C type of the given name maps to this precision.
2633 Note that more than one bit can be set. */
2634 unsigned int c_char : 1;
2635 unsigned int c_short : 1;
2636 unsigned int c_int : 1;
2637 unsigned int c_long : 1;
2638 unsigned int c_long_long : 1;
2639}
2640gfc_integer_info;
2641
2642extern gfc_integer_info gfc_integer_kinds[];
2643
2644
2645typedef struct
2646{
2647 int kind, bit_size;
2648
2649 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
2650 unsigned int c_bool : 1;
2651}
2652gfc_logical_info;
2653
2654extern gfc_logical_info gfc_logical_kinds[];
2655
2656
2657typedef struct
2658{
2659 mpfr_t epsilon, huge, tiny, subnormal;
2660 int kind, abi_kind, radix, digits, min_exponent, max_exponent;
2661 int range, precision;
2662
2663 /* The precision of the type as reported by GET_MODE_PRECISION. */
2664 int mode_precision;
2665
2666 /* True if the C type of the given name maps to this precision.
2667 Note that more than one bit can be set. */
2668 unsigned int c_float : 1;
2669 unsigned int c_double : 1;
2670 unsigned int c_long_double : 1;
2671 unsigned int c_float128 : 1;
2672 /* True if for _Float128 C2X IEC 60559 *f128 APIs should be used
2673 instead of libquadmath *q APIs. */
2674 unsigned int use_iec_60559 : 1;
2675}
2676gfc_real_info;
2677
2678extern gfc_real_info gfc_real_kinds[];
2679
2680typedef struct
2681{
2682 int kind, bit_size;
2683 const char *name;
2684}
2685gfc_character_info;
2686
2687extern gfc_character_info gfc_character_kinds[];
2688
2689
2690/* Equivalence structures. Equivalent lvalues are linked along the
2691 *eq pointer, equivalence sets are strung along the *next node. */
2692typedef struct gfc_equiv
2693{
2694 struct gfc_equiv *next, *eq;
2695 gfc_expr *expr;
2696 const char *module;
2697 int used;
2698}
2699gfc_equiv;
2700
2701#define gfc_get_equiv() XCNEW (gfc_equiv)
2702
2703/* Holds a single equivalence member after processing. */
2704typedef struct gfc_equiv_info
2705{
2706 gfc_symbol *sym;
2707 HOST_WIDE_INT offset;
2708 HOST_WIDE_INT length;
2709 struct gfc_equiv_info *next;
2710} gfc_equiv_info;
2711
2712/* Holds equivalence groups, after they have been processed. */
2713typedef struct gfc_equiv_list
2714{
2715 gfc_equiv_info *equiv;
2716 struct gfc_equiv_list *next;
2717} gfc_equiv_list;
2718
2719/* gfc_case stores the selector list of a case statement. The *low
2720 and *high pointers can point to the same expression in the case of
2721 a single value. If *high is NULL, the selection is from *low
2722 upwards, if *low is NULL the selection is *high downwards.
2723
2724 This structure has separate fields to allow single and double linked
2725 lists of CASEs at the same time. The singe linked list along the NEXT
2726 field is a list of cases for a single CASE label. The double linked
2727 list along the LEFT/RIGHT fields is used to detect overlap and to
2728 build a table of the cases for SELECT constructs with a CHARACTER
2729 case expression. */
2730
2731typedef struct gfc_case
2732{
2733 /* Where we saw this case. */
2734 locus where;
2735 int n;
2736
2737 /* Case range values. If (low == high), it's a single value. If one of
2738 the labels is NULL, it's an unbounded case. If both are NULL, this
2739 represents the default case. */
2740 gfc_expr *low, *high;
2741
2742 /* Only used for SELECT TYPE. */
2743 gfc_typespec ts;
2744
2745 /* Next case label in the list of cases for a single CASE label. */
2746 struct gfc_case *next;
2747
2748 /* Used for detecting overlap, and for code generation. */
2749 struct gfc_case *left, *right;
2750
2751 /* True if this case label can never be matched. */
2752 int unreachable;
2753}
2754gfc_case;
2755
2756#define gfc_get_case() XCNEW (gfc_case)
2757
2758
2759typedef struct
2760{
2761 gfc_expr *var, *start, *end, *step;
2762 unsigned short unroll;
2763 bool ivdep;
2764 bool vector;
2765 bool novector;
2766}
2767gfc_iterator;
2768
2769#define gfc_get_iterator() XCNEW (gfc_iterator)
2770
2771
2772/* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
2773
2774typedef struct gfc_alloc
2775{
2776 gfc_expr *expr;
2777 struct gfc_alloc *next;
2778}
2779gfc_alloc;
2780
2781#define gfc_get_alloc() XCNEW (gfc_alloc)
2782
2783
2784typedef struct
2785{
2786 gfc_expr *unit, *file, *status, *access, *form, *recl,
2787 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
2788 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit,
2789 *share, *cc;
2790 char readonly;
2791 gfc_st_label *err;
2792}
2793gfc_open;
2794
2795
2796typedef struct
2797{
2798 gfc_expr *unit, *status, *iostat, *iomsg;
2799 gfc_st_label *err;
2800}
2801gfc_close;
2802
2803
2804typedef struct
2805{
2806 gfc_expr *unit, *iostat, *iomsg;
2807 gfc_st_label *err;
2808}
2809gfc_filepos;
2810
2811
2812typedef struct
2813{
2814 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
2815 *name, *access, *sequential, *direct, *form, *formatted,
2816 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
2817 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
2818 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id,
2819 *iqstream, *share, *cc;
2820
2821 gfc_st_label *err;
2822
2823}
2824gfc_inquire;
2825
2826
2827typedef struct
2828{
2829 gfc_expr *unit, *iostat, *iomsg, *id;
2830 gfc_st_label *err, *end, *eor;
2831}
2832gfc_wait;
2833
2834
2835typedef struct
2836{
2837 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
2838 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
2839 *sign, *extra_comma, *dt_io_kind, *udtio;
2840 char dec_ext;
2841
2842 gfc_symbol *namelist;
2843 /* A format_label of `format_asterisk' indicates the "*" format */
2844 gfc_st_label *format_label;
2845 gfc_st_label *err, *end, *eor;
2846
2847 locus eor_where, end_where, err_where;
2848}
2849gfc_dt;
2850
2851
2852typedef struct gfc_forall_iterator
2853{
2854 gfc_expr *var, *start, *end, *stride;
2855 struct gfc_forall_iterator *next;
2856}
2857gfc_forall_iterator;
2858
2859
2860/* Linked list to store associations in an ASSOCIATE statement. */
2861
2862typedef struct gfc_association_list
2863{
2864 struct gfc_association_list *next;
2865
2866 /* Whether this is association to a variable that can be changed; otherwise,
2867 it's association to an expression and the name may not be used as
2868 lvalue. */
2869 unsigned variable:1;
2870
2871 /* True if this struct is currently only linked to from a gfc_symbol rather
2872 than as part of a real list in gfc_code->ext.block.assoc. This may
2873 happen for SELECT TYPE temporaries and must be considered
2874 for memory handling. */
2875 unsigned dangling:1;
2876
2877 /* True when the rank of the target expression is guessed during parsing. */
2878 unsigned rankguessed:1;
2879
2880 char name[GFC_MAX_SYMBOL_LEN + 1];
2881 gfc_symtree *st; /* Symtree corresponding to name. */
2882 locus where;
2883
2884 gfc_expr *target;
2885}
2886gfc_association_list;
2887#define gfc_get_association_list() XCNEW (gfc_association_list)
2888
2889
2890/* Executable statements that fill gfc_code structures. */
2891enum gfc_exec_op
2892{
2893 EXEC_NOP = 1, EXEC_END_NESTED_BLOCK, EXEC_END_BLOCK, EXEC_ASSIGN,
2894 EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2895 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2896 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2897 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_CONCURRENT, EXEC_DO_WHILE,
2898 EXEC_SELECT, EXEC_BLOCK, EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
2899 EXEC_CALL_PPC, EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE,
2900 EXEC_SELECT_TYPE, EXEC_SELECT_RANK, EXEC_SYNC_ALL, EXEC_SYNC_MEMORY,
2901 EXEC_SYNC_IMAGES, EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2902 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2903 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2904 EXEC_FORM_TEAM, EXEC_CHANGE_TEAM, EXEC_END_TEAM, EXEC_SYNC_TEAM,
2905 EXEC_LOCK, EXEC_UNLOCK, EXEC_EVENT_POST, EXEC_EVENT_WAIT, EXEC_FAIL_IMAGE,
2906 EXEC_OACC_KERNELS_LOOP, EXEC_OACC_PARALLEL_LOOP, EXEC_OACC_SERIAL_LOOP,
2907 EXEC_OACC_ROUTINE, EXEC_OACC_PARALLEL, EXEC_OACC_KERNELS, EXEC_OACC_SERIAL,
2908 EXEC_OACC_DATA, EXEC_OACC_HOST_DATA, EXEC_OACC_LOOP, EXEC_OACC_UPDATE,
2909 EXEC_OACC_WAIT, EXEC_OACC_CACHE, EXEC_OACC_ENTER_DATA, EXEC_OACC_EXIT_DATA,
2910 EXEC_OACC_ATOMIC, EXEC_OACC_DECLARE,
2911 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2912 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2913 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2914 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2915 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2916 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT,
2917 EXEC_OMP_TASKYIELD, EXEC_OMP_CANCEL, EXEC_OMP_CANCELLATION_POINT,
2918 EXEC_OMP_TASKGROUP, EXEC_OMP_SIMD, EXEC_OMP_DO_SIMD,
2919 EXEC_OMP_PARALLEL_DO_SIMD, EXEC_OMP_TARGET, EXEC_OMP_TARGET_DATA,
2920 EXEC_OMP_TEAMS, EXEC_OMP_DISTRIBUTE, EXEC_OMP_DISTRIBUTE_SIMD,
2921 EXEC_OMP_DISTRIBUTE_PARALLEL_DO, EXEC_OMP_DISTRIBUTE_PARALLEL_DO_SIMD,
2922 EXEC_OMP_TARGET_TEAMS, EXEC_OMP_TEAMS_DISTRIBUTE,
2923 EXEC_OMP_TEAMS_DISTRIBUTE_SIMD, EXEC_OMP_TARGET_TEAMS_DISTRIBUTE,
2924 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD,
2925 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO,
2926 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
2927 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
2928 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
2929 EXEC_OMP_TARGET_UPDATE, EXEC_OMP_END_CRITICAL,
2930 EXEC_OMP_TARGET_ENTER_DATA, EXEC_OMP_TARGET_EXIT_DATA,
2931 EXEC_OMP_TARGET_PARALLEL, EXEC_OMP_TARGET_PARALLEL_DO,
2932 EXEC_OMP_TARGET_PARALLEL_DO_SIMD, EXEC_OMP_TARGET_SIMD,
2933 EXEC_OMP_TASKLOOP, EXEC_OMP_TASKLOOP_SIMD, EXEC_OMP_SCAN, EXEC_OMP_DEPOBJ,
2934 EXEC_OMP_PARALLEL_MASTER, EXEC_OMP_PARALLEL_MASTER_TASKLOOP,
2935 EXEC_OMP_PARALLEL_MASTER_TASKLOOP_SIMD, EXEC_OMP_MASTER_TASKLOOP,
2936 EXEC_OMP_MASTER_TASKLOOP_SIMD, EXEC_OMP_LOOP, EXEC_OMP_PARALLEL_LOOP,
2937 EXEC_OMP_TEAMS_LOOP, EXEC_OMP_TARGET_PARALLEL_LOOP,
2938 EXEC_OMP_TARGET_TEAMS_LOOP, EXEC_OMP_MASKED, EXEC_OMP_PARALLEL_MASKED,
2939 EXEC_OMP_PARALLEL_MASKED_TASKLOOP, EXEC_OMP_PARALLEL_MASKED_TASKLOOP_SIMD,
2940 EXEC_OMP_MASKED_TASKLOOP, EXEC_OMP_MASKED_TASKLOOP_SIMD, EXEC_OMP_SCOPE,
2941 EXEC_OMP_ERROR
2942};
2943
2944typedef struct gfc_code
2945{
2946 gfc_exec_op op;
2947
2948 struct gfc_code *block, *next;
2949 locus loc;
2950
2951 gfc_st_label *here, *label1, *label2, *label3;
2952 gfc_symtree *symtree;
2953 gfc_expr *expr1, *expr2, *expr3, *expr4;
2954 /* A name isn't sufficient to identify a subroutine, we need the actual
2955 symbol for the interface definition.
2956 const char *sub_name; */
2957 gfc_symbol *resolved_sym;
2958 gfc_intrinsic_sym *resolved_isym;
2959
2960 union
2961 {
2962 gfc_actual_arglist *actual;
2963 gfc_iterator *iterator;
2964
2965 struct
2966 {
2967 gfc_typespec ts;
2968 gfc_alloc *list;
2969 /* Take the array specification from expr3 to allocate arrays
2970 without an explicit array specification. */
2971 unsigned arr_spec_from_expr3:1;
2972 }
2973 alloc;
2974
2975 struct
2976 {
2977 gfc_namespace *ns;
2978 gfc_association_list *assoc;
2979 gfc_case *case_list;
2980 }
2981 block;
2982
2983 gfc_open *open;
2984 gfc_close *close;
2985 gfc_filepos *filepos;
2986 gfc_inquire *inquire;
2987 gfc_wait *wait;
2988 gfc_dt *dt;
2989 gfc_forall_iterator *forall_iterator;
2990 struct gfc_code *which_construct;
2991 int stop_code;
2992 gfc_entry_list *entry;
2993 gfc_oacc_declare *oacc_declare;
2994 gfc_omp_clauses *omp_clauses;
2995 const char *omp_name;
2996 gfc_omp_namelist *omp_namelist;
2997 bool omp_bool;
2998 }
2999 ext; /* Points to additional structures required by statement */
3000
3001 /* Cycle and break labels in constructs. */
3002 tree cycle_label;
3003 tree exit_label;
3004}
3005gfc_code;
3006
3007
3008/* Storage for DATA statements. */
3009typedef struct gfc_data_variable
3010{
3011 gfc_expr *expr;
3012 gfc_iterator iter;
3013 struct gfc_data_variable *list, *next;
3014}
3015gfc_data_variable;
3016
3017
3018typedef struct gfc_data_value
3019{
3020 mpz_t repeat;
3021 gfc_expr *expr;
3022 struct gfc_data_value *next;
3023}
3024gfc_data_value;
3025
3026
3027typedef struct gfc_data
3028{
3029 gfc_data_variable *var;
3030 gfc_data_value *value;
3031 locus where;
3032
3033 struct gfc_data *next;
3034}
3035gfc_data;
3036
3037
3038/* Structure for holding compile options */
3039typedef struct
3040{
3041 char *module_dir;
3042 gfc_source_form source_form;
3043 int max_continue_fixed;
3044 int max_continue_free;
3045 int max_identifier_length;
3046
3047 int max_errors;
3048
3049 int flag_preprocessed;
3050 int flag_d_lines;
3051 int flag_init_integer;
3052 long flag_init_integer_value;
3053 int flag_init_logical;
3054 int flag_init_character;
3055 char flag_init_character_value;
3056
3057 int fpe;
3058 int fpe_summary;
3059 int rtcheck;
3060
3061 int warn_std;
3062 int allow_std;
3063}
3064gfc_option_t;
3065
3066extern gfc_option_t gfc_option;
3067
3068/* Constructor nodes for array and structure constructors. */
3069typedef struct gfc_constructor
3070{
3071 gfc_constructor_base base;
3072 mpz_t offset; /* Offset within a constructor, used as
3073 key within base. */
3074
3075 gfc_expr *expr;
3076 gfc_iterator *iterator;
3077 locus where;
3078
3079 union
3080 {
3081 gfc_component *component; /* Record the component being initialized. */
3082 }
3083 n;
3084 mpz_t repeat; /* Record the repeat number of initial values in data
3085 statement like "data a/5*10/". */
3086}
3087gfc_constructor;
3088
3089
3090typedef struct iterator_stack
3091{
3092 gfc_symtree *variable;
3093 mpz_t value;
3094 struct iterator_stack *prev;
3095}
3096iterator_stack;
3097extern iterator_stack *iter_stack;
3098
3099
3100/* Used for (possibly nested) SELECT TYPE statements. */
3101typedef struct gfc_select_type_stack
3102{
3103 gfc_symbol *selector; /* Current selector variable. */
3104 gfc_symtree *tmp; /* Current temporary variable. */
3105 struct gfc_select_type_stack *prev; /* Previous element on stack. */
3106}
3107gfc_select_type_stack;
3108extern gfc_select_type_stack *select_type_stack;
3109#define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
3110
3111
3112/* Node in the linked list used for storing finalizer procedures. */
3113
3114typedef struct gfc_finalizer
3115{
3116 struct gfc_finalizer* next;
3117 locus where; /* Where the FINAL declaration occurred. */
3118
3119 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
3120 symtree and later need only that. This way, we can access and call the
3121 finalizers from every context as they should be "always accessible". I
3122 don't make this a union because we need the information whether proc_sym is
3123 still referenced or not for dereferencing it on deleting a gfc_finalizer
3124 structure. */
3125 gfc_symbol* proc_sym;
3126 gfc_symtree* proc_tree;
3127}
3128gfc_finalizer;
3129#define gfc_get_finalizer() XCNEW (gfc_finalizer)
3130
3131
3132/************************ Function prototypes *************************/
3133
3134/* decl.cc */
3135bool gfc_in_match_data (void);
3136match gfc_match_char_spec (gfc_typespec *);
3137extern int directive_unroll;
3138extern bool directive_ivdep;
3139extern bool directive_vector;
3140extern bool directive_novector;
3141
3142/* SIMD clause enum. */
3143enum gfc_simd_clause
3144{
3145 SIMD_NONE = (1 << 0),
3146 SIMD_INBRANCH = (1 << 1),
3147 SIMD_NOTINBRANCH = (1 << 2)
3148};
3149
3150/* Tuple for parsing of vectorized built-ins. */
3151struct gfc_vect_builtin_tuple
3152{
3153 gfc_vect_builtin_tuple (const char *n, gfc_simd_clause t)
3154 : name (n), simd_type (t) {}
3155
3156 const char *name;
3157 gfc_simd_clause simd_type;
3158};
3159
3160/* Map of middle-end built-ins that should be vectorized. */
3161extern hash_map<nofree_string_hash, int> *gfc_vectorized_builtins;
3162
3163/* Handling Parameterized Derived Types */
3164bool gfc_insert_parameter_exprs (gfc_expr *, gfc_actual_arglist *);
3165match gfc_get_pdt_instance (gfc_actual_arglist *, gfc_symbol **,
3166 gfc_actual_arglist **);
3167
3168
3169/* Given a symbol, test whether it is a module procedure in a submodule */
3170#define gfc_submodule_procedure(attr) \
3171 (gfc_state_stack->previous && gfc_state_stack->previous->previous \
3172 && gfc_state_stack->previous->previous->state == COMP_SUBMODULE \
3173 && attr->module_procedure)
3174
3175/* scanner.cc */
3176void gfc_scanner_done_1 (void);
3177void gfc_scanner_init_1 (void);
3178
3179void gfc_add_include_path (const char *, bool, bool, bool, bool);
3180void gfc_add_intrinsic_modules_path (const char *);
3181void gfc_release_include_path (void);
3182void gfc_check_include_dirs (bool);
3183FILE *gfc_open_included_file (const char *, bool, bool);
3184
3185int gfc_at_end (void);
3186int gfc_at_eof (void);
3187int gfc_at_bol (void);
3188int gfc_at_eol (void);
3189void gfc_advance_line (void);
3190int gfc_check_include (void);
3191int gfc_define_undef_line (void);
3192
3193int gfc_wide_is_printable (gfc_char_t);
3194int gfc_wide_is_digit (gfc_char_t);
3195int gfc_wide_fits_in_byte (gfc_char_t);
3196gfc_char_t gfc_wide_tolower (gfc_char_t);
3197gfc_char_t gfc_wide_toupper (gfc_char_t);
3198size_t gfc_wide_strlen (const gfc_char_t *);
3199int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
3200gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
3201char *gfc_widechar_to_char (const gfc_char_t *, int);
3202gfc_char_t *gfc_char_to_widechar (const char *);
3203
3204#define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
3205
3206void gfc_skip_comments (void);
3207gfc_char_t gfc_next_char_literal (gfc_instring);
3208gfc_char_t gfc_next_char (void);
3209char gfc_next_ascii_char (void);
3210gfc_char_t gfc_peek_char (void);
3211char gfc_peek_ascii_char (void);
3212void gfc_error_recovery (void);
3213void gfc_gobble_whitespace (void);
3214void gfc_new_file (void);
3215const char * gfc_read_orig_filename (const char *, const char **);
3216
3217extern gfc_source_form gfc_current_form;
3218extern const char *gfc_source_file;
3219extern locus gfc_current_locus;
3220
3221void gfc_start_source_files (void);
3222void gfc_end_source_files (void);
3223
3224/* misc.cc */
3225void gfc_clear_ts (gfc_typespec *);
3226FILE *gfc_open_file (const char *);
3227const char *gfc_basic_typename (bt);
3228const char *gfc_dummy_typename (gfc_typespec *);
3229const char *gfc_typename (gfc_typespec *, bool for_hash = false);
3230const char *gfc_typename (gfc_expr *);
3231const char *gfc_op2string (gfc_intrinsic_op);
3232const char *gfc_code2string (const mstring *, int);
3233int gfc_string2code (const mstring *, const char *);
3234const char *gfc_intent_string (sym_intent);
3235
3236void gfc_init_1 (void);
3237void gfc_init_2 (void);
3238void gfc_done_1 (void);
3239void gfc_done_2 (void);
3240
3241int get_c_kind (const char *, CInteropKind_t *);
3242
3243const char *gfc_closest_fuzzy_match (const char *, char **);
3244static inline void
3245vec_push (char **&optr, size_t &osz, const char *elt)
3246{
3247 /* {auto,}vec.safe_push () replacement. Don't ask.. */
3248 // if (strlen (elt) < 4) return; premature optimization: eliminated by cutoff
3249 optr = XRESIZEVEC (char *, optr, osz + 2);
3250 optr[osz] = CONST_CAST (char *, elt);
3251 optr[++osz] = NULL;
3252}
3253
3254HOST_WIDE_INT gfc_mpz_get_hwi (mpz_t);
3255void gfc_mpz_set_hwi (mpz_t, const HOST_WIDE_INT);
3256
3257/* options.cc */
3258unsigned int gfc_option_lang_mask (void);
3259void gfc_init_options_struct (struct gcc_options *);
3260void gfc_init_options (unsigned int,
3261 struct cl_decoded_option *);
3262bool gfc_handle_option (size_t, const char *, HOST_WIDE_INT, int, location_t,
3263 const struct cl_option_handlers *);
3264bool gfc_post_options (const char **);
3265char *gfc_get_option_string (void);
3266
3267/* f95-lang.cc */
3268void gfc_maybe_initialize_eh (void);
3269
3270/* iresolve.cc */
3271const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
3272bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
3273
3274/* error.cc */
3275void gfc_error_init_1 (void);
3276void gfc_diagnostics_init (void);
3277void gfc_diagnostics_finish (void);
3278void gfc_buffer_error (bool);
3279
3280const char *gfc_print_wide_char (gfc_char_t);
3281
3282bool gfc_warning (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3283bool gfc_warning_now (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3284bool gfc_warning_internal (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3285bool gfc_warning_now_at (location_t loc, int opt, const char *gmsgid, ...)
3286 ATTRIBUTE_GCC_GFC(3,4);
3287
3288void gfc_clear_warning (void);
3289void gfc_warning_check (void);
3290
3291void gfc_error_opt (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3292void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
3293void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
3294void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
3295void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
3296void gfc_clear_error (void);
3297bool gfc_error_check (void);
3298bool gfc_error_flag_test (void);
3299
3300notification gfc_notification_std (int);
3301bool gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3302
3303/* A general purpose syntax error. */
3304#define gfc_syntax_error(ST) \
3305 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
3306
3307#include "pretty-print.h" /* For output_buffer. */
3308struct gfc_error_buffer
3309{
3310 bool flag;
3311 output_buffer buffer;
3312 gfc_error_buffer(void) : flag(false), buffer() {}
3313};
3314
3315void gfc_push_error (gfc_error_buffer *);
3316void gfc_pop_error (gfc_error_buffer *);
3317void gfc_free_error (gfc_error_buffer *);
3318
3319void gfc_get_errors (int *, int *);
3320void gfc_errors_to_warnings (bool);
3321
3322/* arith.cc */
3323void gfc_arith_init_1 (void);
3324void gfc_arith_done_1 (void);
3325arith gfc_check_integer_range (mpz_t p, int kind);
3326bool gfc_check_character_range (gfc_char_t, int);
3327
3328extern bool gfc_seen_div0;
3329
3330/* trans-types.cc */
3331int gfc_validate_kind (bt, int, bool);
3332int gfc_get_int_kind_from_width_isofortranenv (int size);
3333int gfc_get_real_kind_from_width_isofortranenv (int size);
3334tree gfc_get_union_type (gfc_symbol *);
3335tree gfc_get_derived_type (gfc_symbol * derived, int codimen = 0);
3336extern int gfc_index_integer_kind;
3337extern int gfc_default_integer_kind;
3338extern int gfc_max_integer_kind;
3339extern int gfc_default_real_kind;
3340extern int gfc_default_double_kind;
3341extern int gfc_default_character_kind;
3342extern int gfc_default_logical_kind;
3343extern int gfc_default_complex_kind;
3344extern int gfc_c_int_kind;
3345extern int gfc_c_intptr_kind;
3346extern int gfc_atomic_int_kind;
3347extern int gfc_atomic_logical_kind;
3348extern int gfc_intio_kind;
3349extern int gfc_charlen_int_kind;
3350extern int gfc_size_kind;
3351extern int gfc_numeric_storage_size;
3352extern int gfc_character_storage_size;
3353
3354#define gfc_logical_4_kind 4
3355#define gfc_integer_4_kind 4
3356#define gfc_real_4_kind 4
3357
3358/* symbol.cc */
3359void gfc_clear_new_implicit (void);
3360bool gfc_add_new_implicit_range (int, int);
3361bool gfc_merge_new_implicit (gfc_typespec *);
3362void gfc_set_implicit_none (bool, bool, locus *);
3363void gfc_check_function_type (gfc_namespace *);
3364bool gfc_is_intrinsic_typename (const char *);
3365bool gfc_check_conflict (symbol_attribute *, const char *, locus *);
3366
3367gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
3368bool gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
3369
3370void gfc_set_sym_referenced (gfc_symbol *);
3371
3372bool gfc_add_attribute (symbol_attribute *, locus *);
3373bool gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
3374bool gfc_add_allocatable (symbol_attribute *, locus *);
3375bool gfc_add_codimension (symbol_attribute *, const char *, locus *);
3376bool gfc_add_contiguous (symbol_attribute *, const char *, locus *);
3377bool gfc_add_dimension (symbol_attribute *, const char *, locus *);
3378bool gfc_add_external (symbol_attribute *, locus *);
3379bool gfc_add_intrinsic (symbol_attribute *, locus *);
3380bool gfc_add_optional (symbol_attribute *, locus *);
3381bool gfc_add_kind (symbol_attribute *, locus *);
3382bool gfc_add_len (symbol_attribute *, locus *);
3383bool gfc_add_pointer (symbol_attribute *, locus *);
3384bool gfc_add_cray_pointer (symbol_attribute *, locus *);
3385bool gfc_add_cray_pointee (symbol_attribute *, locus *);
3386match gfc_mod_pointee_as (gfc_array_spec *);
3387bool gfc_add_protected (symbol_attribute *, const char *, locus *);
3388bool gfc_add_result (symbol_attribute *, const char *, locus *);
3389bool gfc_add_automatic (symbol_attribute *, const char *, locus *);
3390bool gfc_add_save (symbol_attribute *, save_state, const char *, locus *);
3391bool gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
3392bool gfc_add_omp_declare_target (symbol_attribute *, const char *, locus *);
3393bool gfc_add_omp_declare_target_link (symbol_attribute *, const char *,
3394 locus *);
3395bool gfc_add_target (symbol_attribute *, locus *);
3396bool gfc_add_dummy (symbol_attribute *, const char *, locus *);
3397bool gfc_add_generic (symbol_attribute *, const char *, locus *);
3398bool gfc_add_in_common (symbol_attribute *, const char *, locus *);
3399bool gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
3400bool gfc_add_data (symbol_attribute *, const char *, locus *);
3401bool gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
3402bool gfc_add_sequence (symbol_attribute *, const char *, locus *);
3403bool gfc_add_elemental (symbol_attribute *, locus *);
3404bool gfc_add_pure (symbol_attribute *, locus *);
3405bool gfc_add_recursive (symbol_attribute *, locus *);
3406bool gfc_add_function (symbol_attribute *, const char *, locus *);
3407bool gfc_add_subroutine (symbol_attribute *, const char *, locus *);
3408bool gfc_add_volatile (symbol_attribute *, const char *, locus *);
3409bool gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
3410bool gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
3411bool gfc_add_abstract (symbol_attribute* attr, locus* where);
3412
3413bool gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
3414bool gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
3415bool gfc_add_extension (symbol_attribute *, locus *);
3416bool gfc_add_value (symbol_attribute *, const char *, locus *);
3417bool gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
3418bool gfc_add_entry (symbol_attribute *, const char *, locus *);
3419bool gfc_add_procedure (symbol_attribute *, procedure_type,
3420 const char *, locus *);
3421bool gfc_add_intent (symbol_attribute *, sym_intent, locus *);
3422bool gfc_add_explicit_interface (gfc_symbol *, ifsrc,
3423 gfc_formal_arglist *, locus *);
3424bool gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
3425
3426void gfc_clear_attr (symbol_attribute *);
3427bool gfc_missing_attr (symbol_attribute *, locus *);
3428bool gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
3429int gfc_copy_dummy_sym (gfc_symbol **, gfc_symbol *, int);
3430bool gfc_add_component (gfc_symbol *, const char *, gfc_component **);
3431gfc_symbol *gfc_use_derived (gfc_symbol *);
3432gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool,
3433 gfc_ref **);
3434
3435gfc_st_label *gfc_get_st_label (int);
3436void gfc_free_st_label (gfc_st_label *);
3437void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
3438bool gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
3439
3440gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
3441gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
3442gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
3443void gfc_delete_symtree (gfc_symtree **, const char *);
3444gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
3445gfc_user_op *gfc_get_uop (const char *);
3446gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
3447void gfc_free_symbol (gfc_symbol *&);
3448void gfc_release_symbol (gfc_symbol *&);
3449gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
3450gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *);
3451int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
3452int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
3453int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
3454bool gfc_verify_c_interop (gfc_typespec *);
3455bool gfc_verify_c_interop_param (gfc_symbol *);
3456bool verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
3457bool verify_bind_c_derived_type (gfc_symbol *);
3458bool verify_com_block_vars_c_interop (gfc_common_head *);
3459gfc_symtree *generate_isocbinding_symbol (const char *, iso_c_binding_symbol,
3460 const char *, gfc_symtree *, bool);
3461void gfc_save_symbol_data (gfc_symbol *);
3462int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
3463int gfc_get_ha_symbol (const char *, gfc_symbol **);
3464int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
3465
3466void gfc_drop_last_undo_checkpoint (void);
3467void gfc_restore_last_undo_checkpoint (void);
3468void gfc_undo_symbols (void);
3469void gfc_commit_symbols (void);
3470void gfc_commit_symbol (gfc_symbol *);
3471gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
3472void gfc_free_namespace (gfc_namespace *&);
3473
3474void gfc_symbol_init_2 (void);
3475void gfc_symbol_done_2 (void);
3476
3477void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
3478void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
3479void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
3480void gfc_save_all (gfc_namespace *);
3481
3482void gfc_enforce_clean_symbol_state (void);
3483
3484gfc_gsymbol *gfc_get_gsymbol (const char *, bool bind_c);
3485gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
3486gfc_gsymbol *gfc_find_case_gsymbol (gfc_gsymbol *, const char *);
3487void gfc_traverse_gsymbol (gfc_gsymbol *, void (*)(gfc_gsymbol *, void *), void *);
3488
3489gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
3490gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
3491bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
3492bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
3493
3494void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *,
3495 gfc_actual_arglist *, bool copy_type = false);
3496
3497void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.cc, too */
3498
3499bool gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
3500gfc_namespace* gfc_find_proc_namespace (gfc_namespace*);
3501
3502bool gfc_is_associate_pointer (gfc_symbol*);
3503gfc_symbol * gfc_find_dt_in_generic (gfc_symbol *);
3504gfc_formal_arglist *gfc_sym_get_dummy_args (gfc_symbol *);
3505
3506/* intrinsic.cc -- true if working in an init-expr, false otherwise. */
3507extern bool gfc_init_expr_flag;
3508
3509/* Given a symbol that we have decided is intrinsic, mark it as such
3510 by placing it into a special module that is otherwise impossible to
3511 read or write. */
3512
3513#define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
3514
3515void gfc_intrinsic_init_1 (void);
3516void gfc_intrinsic_done_1 (void);
3517
3518char gfc_type_letter (bt, bool logical_equals_int = false);
3519int gfc_type_abi_kind (bt, int);
3520static inline int
3521gfc_type_abi_kind (gfc_typespec *ts)
3522{
3523 return gfc_type_abi_kind (ts->type, ts->kind);
3524}
3525gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
3526gfc_symbol *gfc_get_intrinsic_function_symbol (gfc_expr *);
3527gfc_symbol *gfc_find_intrinsic_symbol (gfc_expr *);
3528bool gfc_convert_type (gfc_expr *, gfc_typespec *, int);
3529bool gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int,
3530 bool array = false);
3531bool gfc_convert_chartype (gfc_expr *, gfc_typespec *);
3532int gfc_generic_intrinsic (const char *);
3533int gfc_specific_intrinsic (const char *);
3534bool gfc_is_intrinsic (gfc_symbol*, int, locus);
3535int gfc_intrinsic_actual_ok (const char *, const bool);
3536gfc_intrinsic_sym *gfc_find_function (const char *);
3537gfc_intrinsic_sym *gfc_find_subroutine (const char *);
3538gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id);
3539gfc_intrinsic_sym *gfc_intrinsic_subroutine_by_id (gfc_isym_id);
3540gfc_isym_id gfc_isym_id_by_intmod (intmod_id, int);
3541gfc_isym_id gfc_isym_id_by_intmod_sym (gfc_symbol *);
3542
3543
3544match gfc_intrinsic_func_interface (gfc_expr *, int);
3545match gfc_intrinsic_sub_interface (gfc_code *, int);
3546
3547void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
3548bool gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
3549 bool, locus);
3550
3551/* match.cc -- FIXME */
3552void gfc_free_iterator (gfc_iterator *, int);
3553void gfc_free_forall_iterator (gfc_forall_iterator *);
3554void gfc_free_alloc_list (gfc_alloc *);
3555void gfc_free_namelist (gfc_namelist *);
3556void gfc_free_omp_namelist (gfc_omp_namelist *, bool);
3557void gfc_free_equiv (gfc_equiv *);
3558void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *);
3559void gfc_free_data (gfc_data *);
3560void gfc_reject_data (gfc_namespace *);
3561void gfc_free_case_list (gfc_case *);
3562
3563/* matchexp.cc -- FIXME too? */
3564gfc_expr *gfc_get_parentheses (gfc_expr *);
3565
3566/* openmp.cc */
3567struct gfc_omp_saved_state { void *ptrs[2]; int ints[1]; };
3568bool gfc_omp_requires_add_clause (gfc_omp_requires_kind, const char *,
3569 locus *, const char *);
3570void gfc_check_omp_requires (gfc_namespace *, int);
3571void gfc_free_omp_clauses (gfc_omp_clauses *);
3572void gfc_free_oacc_declare_clauses (struct gfc_oacc_declare *);
3573void gfc_free_omp_declare_variant_list (gfc_omp_declare_variant *list);
3574void gfc_free_omp_declare_simd (gfc_omp_declare_simd *);
3575void gfc_free_omp_declare_simd_list (gfc_omp_declare_simd *);
3576void gfc_free_omp_udr (gfc_omp_udr *);
3577gfc_omp_udr *gfc_omp_udr_find (gfc_symtree *, gfc_typespec *);
3578void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
3579void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *, bool);
3580void gfc_resolve_omp_local_vars (gfc_namespace *);
3581void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
3582void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
3583void gfc_resolve_omp_declare_simd (gfc_namespace *);
3584void gfc_resolve_omp_udrs (gfc_symtree *);
3585void gfc_omp_save_and_clear_state (struct gfc_omp_saved_state *);
3586void gfc_omp_restore_state (struct gfc_omp_saved_state *);
3587void gfc_free_expr_list (gfc_expr_list *);
3588void gfc_resolve_oacc_directive (gfc_code *, gfc_namespace *);
3589void gfc_resolve_oacc_declare (gfc_namespace *);
3590void gfc_resolve_oacc_blocks (gfc_code *, gfc_namespace *);
3591void gfc_resolve_oacc_routines (gfc_namespace *);
3592
3593/* expr.cc */
3594void gfc_free_actual_arglist (gfc_actual_arglist *);
3595gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
3596
3597bool gfc_extract_int (gfc_expr *, int *, int = 0);
3598bool gfc_extract_hwi (gfc_expr *, HOST_WIDE_INT *, int = 0);
3599
3600bool is_CFI_desc (gfc_symbol *, gfc_expr *);
3601bool is_subref_array (gfc_expr *);
3602bool gfc_is_simply_contiguous (gfc_expr *, bool, bool);
3603bool gfc_is_not_contiguous (gfc_expr *);
3604bool gfc_check_init_expr (gfc_expr *);
3605
3606gfc_expr *gfc_build_conversion (gfc_expr *);
3607void gfc_free_ref_list (gfc_ref *);
3608void gfc_type_convert_binary (gfc_expr *, int);
3609bool gfc_is_constant_expr (gfc_expr *);
3610bool gfc_simplify_expr (gfc_expr *, int);
3611bool gfc_try_simplify_expr (gfc_expr *, int);
3612int gfc_has_vector_index (gfc_expr *);
3613
3614gfc_expr *gfc_get_expr (void);
3615gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
3616gfc_expr *gfc_get_null_expr (locus *);
3617gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
3618gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
3619gfc_expr *gfc_get_constant_expr (bt, int, locus *);
3620gfc_expr *gfc_get_character_expr (int, locus *, const char *, gfc_charlen_t len);
3621gfc_expr *gfc_get_int_expr (int, locus *, HOST_WIDE_INT);
3622gfc_expr *gfc_get_logical_expr (int, locus *, bool);
3623gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
3624
3625void gfc_clear_shape (mpz_t *shape, int rank);
3626void gfc_free_shape (mpz_t **shape, int rank);
3627void gfc_free_expr (gfc_expr *);
3628void gfc_replace_expr (gfc_expr *, gfc_expr *);
3629mpz_t *gfc_copy_shape (mpz_t *, int);
3630mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
3631gfc_expr *gfc_copy_expr (gfc_expr *);
3632gfc_ref* gfc_copy_ref (gfc_ref*);
3633
3634bool gfc_specification_expr (gfc_expr *);
3635
3636int gfc_numeric_ts (gfc_typespec *);
3637int gfc_kind_max (gfc_expr *, gfc_expr *);
3638
3639bool gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
3640bool gfc_check_assign (gfc_expr *, gfc_expr *, int, bool c = true);
3641bool gfc_check_pointer_assign (gfc_expr *lvalue, gfc_expr *rvalue,
3642 bool suppres_type_test = false,
3643 bool is_init_expr = false);
3644bool gfc_check_assign_symbol (gfc_symbol *, gfc_component *, gfc_expr *);
3645
3646gfc_expr *gfc_build_default_init_expr (gfc_typespec *, locus *);
3647void gfc_apply_init (gfc_typespec *, symbol_attribute *, gfc_expr *);
3648bool gfc_has_default_initializer (gfc_symbol *);
3649gfc_expr *gfc_default_initializer (gfc_typespec *);
3650gfc_expr *gfc_generate_initializer (gfc_typespec *, bool);
3651gfc_expr *gfc_get_variable_expr (gfc_symtree *);
3652void gfc_add_full_array_ref (gfc_expr *, gfc_array_spec *);
3653gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
3654
3655gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
3656
3657bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
3658 bool (*)(gfc_expr *, gfc_symbol *, int*),
3659 int);
3660void gfc_expr_set_symbols_referenced (gfc_expr *);
3661bool gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
3662bool gfc_derived_parameter_expr (gfc_expr *);
3663gfc_param_spec_type gfc_spec_list_type (gfc_actual_arglist *, gfc_symbol *);
3664gfc_component * gfc_get_proc_ptr_comp (gfc_expr *);
3665bool gfc_is_proc_ptr_comp (gfc_expr *);
3666bool gfc_is_alloc_class_scalar_function (gfc_expr *);
3667bool gfc_is_class_array_function (gfc_expr *);
3668
3669bool gfc_ref_this_image (gfc_ref *ref);
3670bool gfc_is_coindexed (gfc_expr *);
3671bool gfc_is_coarray (gfc_expr *);
3672int gfc_get_corank (gfc_expr *);
3673bool gfc_has_ultimate_allocatable (gfc_expr *);
3674bool gfc_has_ultimate_pointer (gfc_expr *);
3675gfc_expr* gfc_find_team_co (gfc_expr *);
3676gfc_expr* gfc_find_stat_co (gfc_expr *);
3677gfc_expr* gfc_build_intrinsic_call (gfc_namespace *, gfc_isym_id, const char*,
3678 locus, unsigned, ...);
3679bool gfc_check_vardef_context (gfc_expr*, bool, bool, bool, const char*);
3680
3681
3682/* st.cc */
3683extern gfc_code new_st;
3684
3685void gfc_clear_new_st (void);
3686gfc_code *gfc_get_code (gfc_exec_op);
3687gfc_code *gfc_append_code (gfc_code *, gfc_code *);
3688void gfc_free_statement (gfc_code *);
3689void gfc_free_statements (gfc_code *);
3690void gfc_free_association_list (gfc_association_list *);
3691
3692/* resolve.cc */
3693void gfc_expression_rank (gfc_expr *);
3694bool gfc_resolve_ref (gfc_expr *);
3695bool gfc_resolve_expr (gfc_expr *);
3696void gfc_resolve (gfc_namespace *);
3697void gfc_resolve_code (gfc_code *, gfc_namespace *);
3698void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
3699void gfc_resolve_formal_arglist (gfc_symbol *);
3700int gfc_impure_variable (gfc_symbol *);
3701int gfc_pure (gfc_symbol *);
3702int gfc_implicit_pure (gfc_symbol *);
3703void gfc_unset_implicit_pure (gfc_symbol *);
3704int gfc_elemental (gfc_symbol *);
3705bool gfc_resolve_iterator (gfc_iterator *, bool, bool);
3706bool find_forall_index (gfc_expr *, gfc_symbol *, int);
3707bool gfc_resolve_index (gfc_expr *, int);
3708bool gfc_resolve_dim_arg (gfc_expr *);
3709bool gfc_is_formal_arg (void);
3710bool gfc_resolve_substring (gfc_ref *, bool *);
3711void gfc_resolve_substring_charlen (gfc_expr *);
3712gfc_expr *gfc_expr_to_initialize (gfc_expr *);
3713bool gfc_type_is_extensible (gfc_symbol *);
3714bool gfc_resolve_intrinsic (gfc_symbol *, locus *);
3715bool gfc_explicit_interface_required (gfc_symbol *, char *, int);
3716extern int gfc_do_concurrent_flag;
3717const char* gfc_lookup_function_fuzzy (const char *, gfc_symtree *);
3718int gfc_pure_function (gfc_expr *e, const char **name);
3719int gfc_implicit_pure_function (gfc_expr *e);
3720
3721
3722/* array.cc */
3723gfc_iterator *gfc_copy_iterator (gfc_iterator *);
3724
3725void gfc_free_array_spec (gfc_array_spec *);
3726gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
3727
3728bool gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
3729gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
3730bool gfc_resolve_array_spec (gfc_array_spec *, int);
3731
3732int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
3733
3734void gfc_simplify_iterator_var (gfc_expr *);
3735bool gfc_expand_constructor (gfc_expr *, bool);
3736int gfc_constant_ac (gfc_expr *);
3737int gfc_expanded_ac (gfc_expr *);
3738bool gfc_resolve_character_array_constructor (gfc_expr *);
3739bool gfc_resolve_array_constructor (gfc_expr *);
3740bool gfc_check_constructor_type (gfc_expr *);
3741bool gfc_check_iter_variable (gfc_expr *);
3742bool gfc_check_constructor (gfc_expr *, bool (*)(gfc_expr *));
3743bool gfc_array_size (gfc_expr *, mpz_t *);
3744bool gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
3745bool gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
3746gfc_array_ref *gfc_find_array_ref (gfc_expr *, bool a = false);
3747tree gfc_conv_array_initializer (tree type, gfc_expr *);
3748bool spec_size (gfc_array_spec *, mpz_t *);
3749bool spec_dimen_size (gfc_array_spec *, int, mpz_t *);
3750bool gfc_is_compile_time_shape (gfc_array_spec *);
3751
3752bool gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *);
3753
3754/* interface.cc -- FIXME: some of these should be in symbol.cc */
3755void gfc_free_interface (gfc_interface *);
3756bool gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
3757bool gfc_compare_types (gfc_typespec *, gfc_typespec *);
3758bool gfc_check_dummy_characteristics (gfc_symbol *, gfc_symbol *,
3759 bool, char *, int);
3760bool gfc_check_result_characteristics (gfc_symbol *, gfc_symbol *,
3761 char *, int);
3762bool gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
3763 char *, int, const char *, const char *,
3764 bool *bad_result_characteristics = NULL);
3765void gfc_check_interfaces (gfc_namespace *);
3766bool gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
3767void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
3768gfc_symbol *gfc_search_interface (gfc_interface *, int,
3769 gfc_actual_arglist **);
3770match gfc_extend_expr (gfc_expr *);
3771void gfc_free_formal_arglist (gfc_formal_arglist *);
3772bool gfc_extend_assign (gfc_code *, gfc_namespace *);
3773bool gfc_check_new_interface (gfc_interface *, gfc_symbol *, locus);
3774bool gfc_add_interface (gfc_symbol *);
3775gfc_interface *gfc_current_interface_head (void);
3776void gfc_set_current_interface_head (gfc_interface *);
3777gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
3778bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
3779bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
3780bool gfc_has_vector_subscript (gfc_expr*);
3781gfc_intrinsic_op gfc_equivalent_op (gfc_intrinsic_op);
3782bool gfc_check_typebound_override (gfc_symtree*, gfc_symtree*);
3783void gfc_check_dtio_interfaces (gfc_symbol*);
3784gfc_symtree* gfc_find_typebound_dtio_proc (gfc_symbol *, bool, bool);
3785gfc_symbol* gfc_find_specific_dtio_proc (gfc_symbol*, bool, bool);
3786void gfc_get_formal_from_actual_arglist (gfc_symbol *, gfc_actual_arglist *);
3787bool gfc_compare_actual_formal (gfc_actual_arglist **, gfc_formal_arglist *,
3788 int, int, bool, locus *);
3789
3790
3791/* io.cc */
3792extern gfc_st_label format_asterisk;
3793
3794void gfc_free_open (gfc_open *);
3795bool gfc_resolve_open (gfc_open *, locus *);
3796void gfc_free_close (gfc_close *);
3797bool gfc_resolve_close (gfc_close *, locus *);
3798void gfc_free_filepos (gfc_filepos *);
3799bool gfc_resolve_filepos (gfc_filepos *, locus *);
3800void gfc_free_inquire (gfc_inquire *);
3801bool gfc_resolve_inquire (gfc_inquire *);
3802void gfc_free_dt (gfc_dt *);
3803bool gfc_resolve_dt (gfc_code *, gfc_dt *, locus *);
3804void gfc_free_wait (gfc_wait *);
3805bool gfc_resolve_wait (gfc_wait *);
3806
3807/* module.cc */
3808void gfc_module_init_2 (void);
3809void gfc_module_done_2 (void);
3810void gfc_dump_module (const char *, int);
3811bool gfc_check_symbol_access (gfc_symbol *);
3812void gfc_free_use_stmts (gfc_use_list *);
3813const char *gfc_dt_lower_string (const char *);
3814const char *gfc_dt_upper_string (const char *);
3815
3816/* primary.cc */
3817symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
3818symbol_attribute gfc_expr_attr (gfc_expr *);
3819symbol_attribute gfc_caf_attr (gfc_expr *, bool i = false, bool *r = NULL);
3820match gfc_match_rvalue (gfc_expr **);
3821match gfc_match_varspec (gfc_expr*, int, bool, bool);
3822int gfc_check_digit (char, int);
3823bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
3824bool gfc_convert_to_structure_constructor (gfc_expr *, gfc_symbol *,
3825 gfc_expr **,
3826 gfc_actual_arglist **, bool);
3827
3828/* trans.cc */
3829void gfc_generate_code (gfc_namespace *);
3830void gfc_generate_module_code (gfc_namespace *);
3831
3832/* trans-intrinsic.cc */
3833bool gfc_inline_intrinsic_function_p (gfc_expr *);
3834
3835/* bbt.cc */
3836typedef int (*compare_fn) (void *, void *);
3837void gfc_insert_bbt (void *, void *, compare_fn);
3838void gfc_delete_bbt (void *, void *, compare_fn);
3839
3840/* dump-parse-tree.cc */
3841void gfc_dump_parse_tree (gfc_namespace *, FILE *);
3842void gfc_dump_c_prototypes (gfc_namespace *, FILE *);
3843void gfc_dump_external_c_prototypes (FILE *);
3844void gfc_dump_global_symbols (FILE *);
3845void debug (gfc_symbol *);
3846void debug (gfc_expr *);
3847
3848/* parse.cc */
3849bool gfc_parse_file (void);
3850void gfc_global_used (gfc_gsymbol *, locus *);
3851gfc_namespace* gfc_build_block_ns (gfc_namespace *);
3852
3853/* dependency.cc */
3854int gfc_dep_compare_functions (gfc_expr *, gfc_expr *, bool);
3855int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
3856bool gfc_dep_difference (gfc_expr *, gfc_expr *, mpz_t *);
3857
3858/* check.cc */
3859bool gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
3860bool gfc_calculate_transfer_sizes (gfc_expr*, gfc_expr*, gfc_expr*,
3861 size_t*, size_t*, size_t*);
3862bool gfc_boz2int (gfc_expr *, int);
3863bool gfc_boz2real (gfc_expr *, int);
3864bool gfc_invalid_boz (const char *, locus *);
3865bool gfc_invalid_null_arg (gfc_expr *);
3866
3867
3868/* class.cc */
3869void gfc_fix_class_refs (gfc_expr *e);
3870void gfc_add_component_ref (gfc_expr *, const char *);
3871void gfc_add_class_array_ref (gfc_expr *);
3872#define gfc_add_data_component(e) gfc_add_component_ref(e,"_data")
3873#define gfc_add_vptr_component(e) gfc_add_component_ref(e,"_vptr")
3874#define gfc_add_len_component(e) gfc_add_component_ref(e,"_len")
3875#define gfc_add_hash_component(e) gfc_add_component_ref(e,"_hash")
3876#define gfc_add_size_component(e) gfc_add_component_ref(e,"_size")
3877#define gfc_add_def_init_component(e) gfc_add_component_ref(e,"_def_init")
3878#define gfc_add_final_component(e) gfc_add_component_ref(e,"_final")
3879bool gfc_is_class_array_ref (gfc_expr *, bool *);
3880bool gfc_is_class_scalar_expr (gfc_expr *);
3881bool gfc_is_class_container_ref (gfc_expr *e);
3882gfc_expr *gfc_class_initializer (gfc_typespec *, gfc_expr *);
3883unsigned int gfc_hash_value (gfc_symbol *);
3884gfc_expr *gfc_get_len_component (gfc_expr *e, int);
3885bool gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
3886 gfc_array_spec **);
3887gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
3888gfc_symbol *gfc_find_vtab (gfc_typespec *);
3889gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, bool*,
3890 const char*, bool, locus*);
3891gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, bool*,
3892 const char*, bool, locus*);
3893gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, bool*,
3894 gfc_intrinsic_op, bool,
3895 locus*);
3896gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
3897bool gfc_is_finalizable (gfc_symbol *, gfc_expr **);
3898
3899#define CLASS_DATA(sym) sym->ts.u.derived->components
3900#define UNLIMITED_POLY(sym) \
3901 (sym != NULL && sym->ts.type == BT_CLASS \
3902 && CLASS_DATA (sym) \
3903 && CLASS_DATA (sym)->ts.u.derived \
3904 && CLASS_DATA (sym)->ts.u.derived->attr.unlimited_polymorphic)
3905#define IS_CLASS_ARRAY(sym) \
3906 (sym->ts.type == BT_CLASS \
3907 && CLASS_DATA (sym) \
3908 && CLASS_DATA (sym)->attr.dimension \
3909 && !CLASS_DATA (sym)->attr.class_pointer)
3910#define IS_POINTER(sym) \
3911 (sym->ts.type == BT_CLASS && sym->attr.class_ok && CLASS_DATA (sym) \
3912 ? CLASS_DATA (sym)->attr.class_pointer : sym->attr.pointer)
3913
3914/* frontend-passes.cc */
3915
3916void gfc_run_passes (gfc_namespace *);
3917
3918typedef int (*walk_code_fn_t) (gfc_code **, int *, void *);
3919typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *);
3920
3921int gfc_dummy_code_callback (gfc_code **, int *, void *);
3922int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *);
3923int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *);
3924bool gfc_has_dimen_vector_ref (gfc_expr *e);
3925void gfc_check_externals (gfc_namespace *);
3926bool gfc_fix_implicit_pure (gfc_namespace *);
3927
3928/* simplify.cc */
3929
3930void gfc_convert_mpz_to_signed (mpz_t, int);
3931gfc_expr *gfc_simplify_ieee_functions (gfc_expr *);
3932bool gfc_is_size_zero_array (gfc_expr *);
3933
3934/* trans-array.cc */
3935
3936bool gfc_is_reallocatable_lhs (gfc_expr *);
3937
3938/* trans-decl.cc */
3939
3940void finish_oacc_declare (gfc_namespace *, gfc_symbol *, bool);
3941void gfc_adjust_builtins (void);
3942
3943#endif /* GCC_GFORTRAN_H */
3944

source code of gcc/fortran/gfortran.h