1 /* gfortran header file
2 Copyright (C) 2000-2021 Free Software Foundation, Inc.
3 Contributed by Andy Vaught
4
5 This file is part of GCC.
6
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
10 version.
11
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
20
21 #ifndef GCC_GFORTRAN_H
22 #define GCC_GFORTRAN_H
23
24 /* It's probably insane to have this large of a header file, but it
25 seemed like everything had to be recompiled anyway when a change
26 was made to a header file, and there were ordering issues with
27 multiple header files. Besides, Microsoft's winnt.h was 250k last
28 time I looked, so by comparison this is perfectly reasonable. */
29
30 #ifndef GCC_CORETYPES_H
31 #error "gfortran.h must be included after coretypes.h"
32 #endif
33
34 /* In order for the format checking to accept the Fortran front end
35 diagnostic framework extensions, you must include this file before
36 diagnostic-core.h, not after. We override the definition of GCC_DIAG_STYLE
37 in c-common.h. */
38 #undef GCC_DIAG_STYLE
39 #define GCC_DIAG_STYLE __gcc_gfc__
40 #if defined(GCC_DIAGNOSTIC_CORE_H)
41 #error \
42 In order for the format checking to accept the Fortran front end diagnostic \
43 framework extensions, you must include this file before diagnostic-core.h, \
44 not after.
45 #endif
46
47 /* Declarations common to the front-end and library are put in
48 libgfortran/libgfortran_frontend.h */
49 #include "libgfortran.h"
50
51
52 #include "intl.h"
53 #include "splay-tree.h"
54
55 /* Major control parameters. */
56
57 #define GFC_MAX_SYMBOL_LEN 63 /* Must be at least 63 for F2003. */
58 #define GFC_LETTERS 26 /* Number of letters in the alphabet. */
59
60 #define MAX_SUBRECORD_LENGTH 2147483639 /* 2**31-9 */
61
62
63 #define gfc_is_whitespace(c) ((c==' ') || (c=='\t') || (c=='\f'))
64
65 /* Macros to check for groups of structure-like types and flavors since
66 derived types, structures, maps, unions are often treated similarly. */
67 #define gfc_bt_struct(t) \
68 ((t) == BT_DERIVED || (t) == BT_UNION)
69 #define gfc_fl_struct(f) \
70 ((f) == FL_DERIVED || (f) == FL_UNION || (f) == FL_STRUCT)
71 #define case_bt_struct case BT_DERIVED: case BT_UNION
72 #define case_fl_struct case FL_DERIVED: case FL_UNION: case FL_STRUCT
73
74 /* Stringization. */
75 #define stringize(x) expand_macro(x)
76 #define expand_macro(x) # x
77
78 /* For the runtime library, a standard prefix is a requirement to
79 avoid cluttering the namespace with things nobody asked for. It's
80 ugly to look at and a pain to type when you add the prefix by hand,
81 so we hide it behind a macro. */
82 #define PREFIX(x) "_gfortran_" x
83 #define PREFIX_LEN 10
84
85 /* A prefix for internal variables, which are not user-visible. */
86 #if !defined (NO_DOT_IN_LABEL)
87 # define GFC_PREFIX(x) "_F." x
88 #elif !defined (NO_DOLLAR_IN_LABEL)
89 # define GFC_PREFIX(x) "_F$" x
90 #else
91 # define GFC_PREFIX(x) "_F_" x
92 #endif
93
94 #define BLANK_COMMON_NAME "__BLNK__"
95
96 /* Macro to initialize an mstring structure. */
97 #define minit(s, t) { s, NULL, t }
98
99 /* Structure for storing strings to be matched by gfc_match_string. */
100 typedef struct
101 {
102 const char *string;
103 const char *mp;
104 int tag;
105 }
106 mstring;
107
108 /* 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
148 enum 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
155 enum 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
162 enum 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
170 enum match
171 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR };
172
173 /* Used for different Fortran source forms in places like scanner.c. */
174 enum gfc_source_form
175 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN };
176
177 /* Expression node types. */
178 enum 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. */
184 enum 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
190 enum 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. */
196 enum 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. */
202 enum 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. */
226 enum 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. */
233 enum 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. */
324 enum 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. */
333 enum 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. */
341 enum 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.c (match_attr_spec). */
348 enum sym_intent
349 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
350 };
351
352 /* Access types. */
353 enum 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. */
359 enum 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. */
367 enum save_state
368 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
369 };
370
371 /* OpenACC 'routine' directive's level of parallelism. */
372 enum 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.c. */
384 extern const mstring flavors[];
385 extern const mstring procedures[];
386 extern const mstring intents[];
387 extern const mstring access_types[];
388 extern const mstring ifsrc_types[];
389 extern const mstring save_status[];
390
391 /* Strings for DTIO procedure names. In symbol.c. */
392 extern const mstring dtio_procs[];
393
394 enum 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
400 enum 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
703 enum init_local_logical
704 {
705 GFC_INIT_LOGICAL_OFF = 0,
706 GFC_INIT_LOGICAL_FALSE,
707 GFC_INIT_LOGICAL_TRUE
708 };
709
710 enum init_local_character
711 {
712 GFC_INIT_CHARACTER_OFF = 0,
713 GFC_INIT_CHARACTER_ON
714 };
715
716 enum init_local_integer
717 {
718 GFC_INIT_INTEGER_OFF = 0,
719 GFC_INIT_INTEGER_ON
720 };
721
722 enum gfc_reverse
723 {
724 GFC_ENABLE_REVERSE,
725 GFC_FORWARD_SET,
726 GFC_REVERSE_SET,
727 GFC_INHIBIT_REVERSE
728 };
729
730 enum 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,
747 enum 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,
768 enum 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
785 enum 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
791 typedef 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 }
797 CInteropKind_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.c as a global, since it's in that file
803 that the list is initialized. */
804 extern CInteropKind_t c_interop_kinds_table[];
805
806 enum 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
814 enum gfc_omp_severity_type
815 {
816 OMP_SEVERITY_UNSET,
817 OMP_SEVERITY_WARNING,
818 OMP_SEVERITY_FATAL
819 };
820
821 enum 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. */
829 typedef 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 }
840 ext_attr_id_t;
841
842 typedef struct
843 {
844 const char *name;
845 unsigned id;
846 const char *middle_end_name;
847 }
848 ext_attr_t;
849
850 extern const ext_attr_t ext_attr_list[];
851
852 /* Symbol attribute structure. */
853 typedef 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 }
1013 symbol_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
1021 typedef unsigned int gfc_char_t;
1022 #elif HOST_BITS_PER_LONG >= 32
1023 typedef unsigned long gfc_char_t;
1024 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
1025 typedef 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
1044 typedef struct gfc_file
1045 {
1046 struct gfc_file *next, *up;
1047 int inclusion_line, line;
1048 char *filename;
1049 } gfc_file;
1050
1051 typedef 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
1067 typedef 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
1084 void gfc_push_suppress_errors (void);
1085 void gfc_pop_suppress_errors (void);
1086
1087
1088 /* Character length structures hold the expression that gives the
1089 length of a character variable. We avoid putting these into
1090 gfc_typespec because doing so prevents us from doing structure
1091 copies and forces us to deallocate any typespecs we create, as well
1092 as structures that contain typespecs. They also can have multiple
1093 character typespecs pointing to them.
1094
1095 These structures form a singly linked list within the current
1096 namespace and are deallocated with the namespace. It is possible to
1097 end up with gfc_charlen structures that have nothing pointing to them. */
1098
1099 typedef struct gfc_charlen
1100 {
1101 struct gfc_expr *length;
1102 struct gfc_charlen *next;
1103 bool length_from_typespec; /* Length from explicit array ctor typespec? */
1104 tree backend_decl;
1105 tree passed_length; /* Length argument explicitly passed. */
1106
1107 int resolved;
1108 }
1109 gfc_charlen;
1110
1111 #define gfc_get_charlen() XCNEW (gfc_charlen)
1112
1113 /* Type specification structure. */
1114 typedef struct
1115 {
1116 bt type;
1117 int kind;
1118
1119 union
1120 {
1121 struct gfc_symbol *derived; /* For derived types only. */
1122 gfc_charlen *cl; /* For character types only. */
1123 int pad; /* For hollerith types only. */
1124 }
1125 u;
1126
1127 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
1128 int is_c_interop;
1129 int is_iso_c;
1130 bt f90_type;
1131 bool deferred;
1132 gfc_symbol *interop_kind;
1133 }
1134 gfc_typespec;
1135
1136 /* Array specification. */
1137 typedef struct
1138 {
1139 int rank; /* A scalar has a rank of 0, an assumed-rank array has -1. */
1140 int corank;
1141 array_type type, cotype;
1142 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
1143
1144 /* These two fields are used with the Cray Pointer extension. */
1145 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
1146 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
1147 AS_EXPLICIT, but we want to remember that we
1148 did this. */
1149
1150 bool resolved;
1151 }
1152 gfc_array_spec;
1153
1154 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
1155
1156
1157 /* Components of derived types. */
1158 typedef struct gfc_component
1159 {
1160 const char *name;
1161 gfc_typespec ts;
1162
1163 symbol_attribute attr;
1164 gfc_array_spec *as;
1165
1166 tree backend_decl;
1167 /* Used to cache a FIELD_DECL matching this same component
1168 but applied to a different backend containing type that was
1169 generated by gfc_nonrestricted_type. */
1170 tree norestrict_decl;
1171 locus loc;
1172 struct gfc_expr *initializer;
1173 /* Used in parameterized derived type declarations to store parameterized
1174 kind expressions. */
1175 struct gfc_expr *kind_expr;
1176 struct gfc_actual_arglist *param_list;
1177
1178 struct gfc_component *next;
1179
1180 /* Needed for procedure pointer components. */
1181 struct gfc_typebound_proc *tb;
1182 /* When allocatable/pointer and in a coarray the associated token. */
1183 tree caf_token;
1184 }
1185 gfc_component;
1186
1187 #define gfc_get_component() XCNEW (gfc_component)
1188
1189 /* Formal argument lists are lists of symbols. */
1190 typedef struct gfc_formal_arglist
1191 {
1192 /* Symbol representing the argument at this position in the arglist. */
1193 struct gfc_symbol *sym;
1194 /* Points to the next formal argument. */
1195 struct gfc_formal_arglist *next;
1196 }
1197 gfc_formal_arglist;
1198
1199 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
1200
1201
1202 struct gfc_dummy_arg;
1203
1204
1205 /* The gfc_actual_arglist structure is for actual arguments and
1206 for type parameter specification lists. */
1207 typedef struct gfc_actual_arglist
1208 {
1209 const char *name;
1210 /* Alternate return label when the expr member is null. */
1211 struct gfc_st_label *label;
1212
1213 gfc_param_spec_type spec_type;
1214
1215 struct gfc_expr *expr;
1216
1217 /* The dummy arg this actual arg is associated with, if the interface
1218 is explicit. NULL otherwise. */
1219 gfc_dummy_arg *associated_dummy;
1220
1221 struct gfc_actual_arglist *next;
1222 }
1223 gfc_actual_arglist;
1224
1225 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
1226
1227
1228 /* Because a symbol can belong to multiple namelists, they must be
1229 linked externally to the symbol itself. */
1230 typedef struct gfc_namelist
1231 {
1232 struct gfc_symbol *sym;
1233 struct gfc_namelist *next;
1234 }
1235 gfc_namelist;
1236
1237 #define gfc_get_namelist() XCNEW (gfc_namelist)
1238
1239 /* Likewise to gfc_namelist, but contains expressions. */
1240 typedef struct gfc_expr_list
1241 {
1242 struct gfc_expr *expr;
1243 struct gfc_expr_list *next;
1244 }
1245 gfc_expr_list;
1246
1247 #define gfc_get_expr_list() XCNEW (gfc_expr_list)
1248
1249 enum gfc_omp_reduction_op
1250 {
1251 OMP_REDUCTION_NONE = -1,
1252 OMP_REDUCTION_PLUS = INTRINSIC_PLUS,
1253 OMP_REDUCTION_MINUS = INTRINSIC_MINUS,
1254 OMP_REDUCTION_TIMES = INTRINSIC_TIMES,
1255 OMP_REDUCTION_AND = INTRINSIC_AND,
1256 OMP_REDUCTION_OR = INTRINSIC_OR,
1257 OMP_REDUCTION_EQV = INTRINSIC_EQV,
1258 OMP_REDUCTION_NEQV = INTRINSIC_NEQV,
1259 OMP_REDUCTION_MAX = GFC_INTRINSIC_END,
1260 OMP_REDUCTION_MIN,
1261 OMP_REDUCTION_IAND,
1262 OMP_REDUCTION_IOR,
1263 OMP_REDUCTION_IEOR,
1264 OMP_REDUCTION_USER
1265 };
1266
1267 enum gfc_omp_depend_op
1268 {
1269 OMP_DEPEND_UNSET,
1270 OMP_DEPEND_IN,
1271 OMP_DEPEND_OUT,
1272 OMP_DEPEND_INOUT,
1273 OMP_DEPEND_MUTEXINOUTSET,
1274 OMP_DEPEND_DEPOBJ,
1275 OMP_DEPEND_SINK_FIRST,
1276 OMP_DEPEND_SINK
1277 };
1278
1279 enum gfc_omp_map_op
1280 {
1281 OMP_MAP_ALLOC,
1282 OMP_MAP_IF_PRESENT,
1283 OMP_MAP_ATTACH,
1284 OMP_MAP_TO,
1285 OMP_MAP_FROM,
1286 OMP_MAP_TOFROM,
1287 OMP_MAP_DELETE,
1288 OMP_MAP_DETACH,
1289 OMP_MAP_FORCE_ALLOC,
1290 OMP_MAP_FORCE_TO,
1291 OMP_MAP_FORCE_FROM,
1292 OMP_MAP_FORCE_TOFROM,
1293 OMP_MAP_FORCE_PRESENT,
1294 OMP_MAP_FORCE_DEVICEPTR,
1295 OMP_MAP_DEVICE_RESIDENT,
1296 OMP_MAP_LINK,
1297 OMP_MAP_RELEASE,
1298 OMP_MAP_ALWAYS_TO,
1299 OMP_MAP_ALWAYS_FROM,
1300 OMP_MAP_ALWAYS_TOFROM
1301 };
1302
1303 enum gfc_omp_defaultmap
1304 {
1305 OMP_DEFAULTMAP_UNSET,
1306 OMP_DEFAULTMAP_ALLOC,
1307 OMP_DEFAULTMAP_TO,
1308 OMP_DEFAULTMAP_FROM,
1309 OMP_DEFAULTMAP_TOFROM,
1310 OMP_DEFAULTMAP_FIRSTPRIVATE,
1311 OMP_DEFAULTMAP_NONE,
1312 OMP_DEFAULTMAP_DEFAULT,
1313 OMP_DEFAULTMAP_PRESENT
1314 };
1315
1316 enum gfc_omp_defaultmap_category
1317 {
1318 OMP_DEFAULTMAP_CAT_UNCATEGORIZED,
1319 OMP_DEFAULTMAP_CAT_SCALAR,
1320 OMP_DEFAULTMAP_CAT_AGGREGATE,
1321 OMP_DEFAULTMAP_CAT_ALLOCATABLE,
1322 OMP_DEFAULTMAP_CAT_POINTER,
1323 OMP_DEFAULTMAP_CAT_NUM
1324 };
1325
1326 enum gfc_omp_linear_op
1327 {
1328 OMP_LINEAR_DEFAULT,
1329 OMP_LINEAR_REF,
1330 OMP_LINEAR_VAL,
1331 OMP_LINEAR_UVAL
1332 };
1333
1334 /* For use in OpenMP clauses in case we need extra information
1335 (aligned clause alignment, linear clause step, etc.). */
1336
1337 typedef struct gfc_omp_namelist
1338 {
1339 struct gfc_symbol *sym;
1340 struct gfc_expr *expr;
1341 union
1342 {
1343 gfc_omp_reduction_op reduction_op;
1344 gfc_omp_depend_op depend_op;
1345 gfc_omp_map_op map_op;
1346 gfc_omp_linear_op linear_op;
1347 struct gfc_common_head *common;
1348 bool lastprivate_conditional;
1349 } u;
1350 union
1351 {
1352 struct gfc_omp_namelist_udr *udr;
1353 gfc_namespace *ns;
1354 } u2;
1355 struct gfc_omp_namelist *next;
1356 locus where;
1357 }
1358 gfc_omp_namelist;
1359
1360 #define gfc_get_omp_namelist() XCNEW (gfc_omp_namelist)
1361
1362 enum
1363 {
1364 OMP_LIST_FIRST,
1365 OMP_LIST_PRIVATE = OMP_LIST_FIRST,
1366 OMP_LIST_FIRSTPRIVATE,
1367 OMP_LIST_LASTPRIVATE,
1368 OMP_LIST_COPYPRIVATE,
1369 OMP_LIST_SHARED,
1370 OMP_LIST_COPYIN,
1371 OMP_LIST_UNIFORM,
1372 OMP_LIST_AFFINITY,
1373 OMP_LIST_ALIGNED,
1374 OMP_LIST_LINEAR,
1375 OMP_LIST_DEPEND,
1376 OMP_LIST_MAP,
1377 OMP_LIST_TO,
1378 OMP_LIST_FROM,
1379 OMP_LIST_SCAN_IN,
1380 OMP_LIST_SCAN_EX,
1381 OMP_LIST_REDUCTION,
1382 OMP_LIST_REDUCTION_INSCAN,
1383 OMP_LIST_REDUCTION_TASK,
1384 OMP_LIST_IN_REDUCTION,
1385 OMP_LIST_TASK_REDUCTION,
1386 OMP_LIST_DEVICE_RESIDENT,
1387 OMP_LIST_LINK,
1388 OMP_LIST_USE_DEVICE,
1389 OMP_LIST_CACHE,
1390 OMP_LIST_IS_DEVICE_PTR,
1391 OMP_LIST_USE_DEVICE_PTR,
1392 OMP_LIST_USE_DEVICE_ADDR,
1393 OMP_LIST_NONTEMPORAL,
1394 OMP_LIST_NUM
1395 };
1396
1397 /* Because a symbol can belong to multiple namelists, they must be
1398 linked externally to the symbol itself. */
1399
1400 enum gfc_omp_sched_kind
1401 {
1402 OMP_SCHED_NONE,
1403 OMP_SCHED_STATIC,
1404 OMP_SCHED_DYNAMIC,
1405 OMP_SCHED_GUIDED,
1406 OMP_SCHED_RUNTIME,
1407 OMP_SCHED_AUTO
1408 };
1409
1410 enum gfc_omp_default_sharing
1411 {
1412 OMP_DEFAULT_UNKNOWN,
1413 OMP_DEFAULT_NONE,
1414 OMP_DEFAULT_PRIVATE,
1415 OMP_DEFAULT_SHARED,
1416 OMP_DEFAULT_FIRSTPRIVATE,
1417 OMP_DEFAULT_PRESENT
1418 };
1419
1420 enum gfc_omp_proc_bind_kind
1421 {
1422 OMP_PROC_BIND_UNKNOWN,
1423 OMP_PROC_BIND_PRIMARY,
1424 OMP_PROC_BIND_MASTER,
1425 OMP_PROC_BIND_SPREAD,
1426 OMP_PROC_BIND_CLOSE
1427 };
1428
1429 enum gfc_omp_cancel_kind
1430 {
1431 OMP_CANCEL_UNKNOWN,
1432 OMP_CANCEL_PARALLEL,
1433 OMP_CANCEL_SECTIONS,
1434 OMP_CANCEL_DO,
1435 OMP_CANCEL_TASKGROUP
1436 };
1437
1438 enum gfc_omp_if_kind
1439 {
1440 OMP_IF_CANCEL,
1441 OMP_IF_PARALLEL,
1442 OMP_IF_SIMD,
1443 OMP_IF_TASK,
1444 OMP_IF_TASKLOOP,
1445 OMP_IF_TARGET,
1446 OMP_IF_TARGET_DATA,
1447 OMP_IF_TARGET_UPDATE,
1448 OMP_IF_TARGET_ENTER_DATA,
1449 OMP_IF_TARGET_EXIT_DATA,
1450 OMP_IF_LAST
1451 };
1452
1453 enum gfc_omp_atomic_op
1454 {
1455 GFC_OMP_ATOMIC_UNSET = 0,
1456 GFC_OMP_ATOMIC_UPDATE = 1,
1457 GFC_OMP_ATOMIC_READ = 2,
1458 GFC_OMP_ATOMIC_WRITE = 3,
1459 GFC_OMP_ATOMIC_MASK = 3,
1460 GFC_OMP_ATOMIC_SWAP = 16
1461 };
1462
1463 enum gfc_omp_requires_kind
1464 {
1465 /* Keep in sync with gfc_namespace, esp. with omp_req_mem_order. */
1466 OMP_REQ_ATOMIC_MEM_ORDER_SEQ_CST = 1, /* 01 */
1467 OMP_REQ_ATOMIC_MEM_ORDER_ACQ_REL = 2, /* 10 */
1468 OMP_REQ_ATOMIC_MEM_ORDER_RELAXED = 3, /* 11 */
1469 OMP_REQ_REVERSE_OFFLOAD = (1 << 2),
1470 OMP_REQ_UNIFIED_ADDRESS = (1 << 3),
1471 OMP_REQ_UNIFIED_SHARED_MEMORY = (1 << 4),
1472 OMP_REQ_DYNAMIC_ALLOCATORS = (1 << 5),
1473 OMP_REQ_TARGET_MASK = (OMP_REQ_REVERSE_OFFLOAD
1474 | OMP_REQ_UNIFIED_ADDRESS
1475 | OMP_REQ_UNIFIED_SHARED_MEMORY),
1476 OMP_REQ_ATOMIC_MEM_ORDER_MASK = (OMP_REQ_ATOMIC_MEM_ORDER_SEQ_CST
1477 | OMP_REQ_ATOMIC_MEM_ORDER_ACQ_REL
1478 | OMP_REQ_ATOMIC_MEM_ORDER_RELAXED)
1479 };
1480
1481 enum gfc_omp_memorder
1482 {
1483 OMP_MEMORDER_UNSET,
1484 OMP_MEMORDER_SEQ_CST,
1485 OMP_MEMORDER_ACQ_REL,
1486 OMP_MEMORDER_RELEASE,
1487 OMP_MEMORDER_ACQUIRE,
1488 OMP_MEMORDER_RELAXED
1489 };
1490
1491 enum gfc_omp_bind_type
1492 {
1493 OMP_BIND_UNSET,
1494 OMP_BIND_TEAMS,
1495 OMP_BIND_PARALLEL,
1496 OMP_BIND_THREAD
1497 };
1498
1499 typedef struct gfc_omp_clauses
1500 {
1501 gfc_omp_namelist *lists[OMP_LIST_NUM];
1502 struct gfc_expr *if_expr;
1503 struct gfc_expr *final_expr;
1504 struct gfc_expr *num_threads;
1505 struct gfc_expr *chunk_size;
1506 struct gfc_expr *safelen_expr;
1507 struct gfc_expr *simdlen_expr;
1508 struct gfc_expr *num_teams_lower;
1509 struct gfc_expr *num_teams_upper;
1510 struct gfc_expr *device;
1511 struct gfc_expr *thread_limit;
1512 struct gfc_expr *grainsize;
1513 struct gfc_expr *filter;
1514 struct gfc_expr *hint;
1515 struct gfc_expr *num_tasks;
1516 struct gfc_expr *priority;
1517 struct gfc_expr *detach;
1518 struct gfc_expr *depobj;
1519 struct gfc_expr *if_exprs[OMP_IF_LAST];
1520 struct gfc_expr *dist_chunk_size;
1521 struct gfc_expr *message;
1522 const char *critical_name;
1523 enum gfc_omp_default_sharing default_sharing;
1524 enum gfc_omp_atomic_op atomic_op;
1525 enum gfc_omp_defaultmap defaultmap[OMP_DEFAULTMAP_CAT_NUM];
1526 int collapse, orderedc;
1527 unsigned nowait:1, ordered:1, untied:1, mergeable:1, ancestor:1;
1528 unsigned inbranch:1, notinbranch:1, nogroup:1;
1529 unsigned sched_simd:1, sched_monotonic:1, sched_nonmonotonic:1;
1530 unsigned simd:1, threads:1, depend_source:1, destroy:1, order_concurrent:1;
1531 unsigned order_unconstrained:1, order_reproducible:1, capture:1;
1532 unsigned grainsize_strict:1, num_tasks_strict:1, compare:1, weak:1;
1533 ENUM_BITFIELD (gfc_omp_sched_kind) sched_kind:3;
1534 ENUM_BITFIELD (gfc_omp_device_type) device_type:2;
1535 ENUM_BITFIELD (gfc_omp_memorder) memorder:3;
1536 ENUM_BITFIELD (gfc_omp_memorder) fail:3;
1537 ENUM_BITFIELD (gfc_omp_cancel_kind) cancel:3;
1538 ENUM_BITFIELD (gfc_omp_proc_bind_kind) proc_bind:3;
1539 ENUM_BITFIELD (gfc_omp_depend_op) depobj_update:3;
1540 ENUM_BITFIELD (gfc_omp_bind_type) bind:2;
1541 ENUM_BITFIELD (gfc_omp_at_type) at:2;
1542 ENUM_BITFIELD (gfc_omp_severity_type) severity:2;
1543 ENUM_BITFIELD (gfc_omp_sched_kind) dist_sched_kind:3;
1544
1545 /* OpenACC. */
1546 struct gfc_expr *async_expr;
1547 struct gfc_expr *gang_static_expr;
1548 struct gfc_expr *gang_num_expr;
1549 struct gfc_expr *worker_expr;
1550 struct gfc_expr *vector_expr;
1551 struct gfc_expr *num_gangs_expr;
1552 struct gfc_expr *num_workers_expr;
1553 struct gfc_expr *vector_length_expr;
1554 gfc_expr_list *wait_list;
1555 gfc_expr_list *tile_list;
1556 unsigned async:1, gang:1, worker:1, vector:1, seq:1, independent:1;
1557 unsigned par_auto:1, gang_static:1;
1558 unsigned if_present:1, finalize:1;
1559 unsigned nohost:1;
1560 locus loc;
1561 }
1562 gfc_omp_clauses;
1563
1564 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1565
1566
1567 /* Node in the linked list used for storing !$oacc declare constructs. */
1568
1569 typedef struct gfc_oacc_declare
1570 {
1571 struct gfc_oacc_declare *next;
1572 bool module_var;
1573 gfc_omp_clauses *clauses;
1574 locus loc;
1575 }
1576 gfc_oacc_declare;
1577
1578 #define gfc_get_oacc_declare() XCNEW (gfc_oacc_declare)
1579
1580
1581 /* Node in the linked list used for storing !$omp declare simd constructs. */
1582
1583 typedef struct gfc_omp_declare_simd
1584 {
1585 struct gfc_omp_declare_simd *next;
1586 locus where; /* Where the !$omp declare simd construct occurred. */
1587
1588 gfc_symbol *proc_name;
1589
1590 gfc_omp_clauses *clauses;
1591 }
1592 gfc_omp_declare_simd;
1593 #define gfc_get_omp_declare_simd() XCNEW (gfc_omp_declare_simd)
1594
1595
1596 enum gfc_omp_trait_property_kind
1597 {
1598 CTX_PROPERTY_NONE,
1599 CTX_PROPERTY_USER,
1600 CTX_PROPERTY_NAME_LIST,
1601 CTX_PROPERTY_ID,
1602 CTX_PROPERTY_EXPR,
1603 CTX_PROPERTY_SIMD
1604 };
1605
1606 typedef struct gfc_omp_trait_property
1607 {
1608 struct gfc_omp_trait_property *next;
1609 enum gfc_omp_trait_property_kind property_kind;
1610 bool is_name : 1;
1611
1612 union
1613 {
1614 gfc_expr *expr;
1615 gfc_symbol *sym;
1616 gfc_omp_clauses *clauses;
1617 char *name;
1618 };
1619 } gfc_omp_trait_property;
1620 #define gfc_get_omp_trait_property() XCNEW (gfc_omp_trait_property)
1621
1622 typedef struct gfc_omp_selector
1623 {
1624 struct gfc_omp_selector *next;
1625
1626 char *trait_selector_name;
1627 gfc_expr *score;
1628 struct gfc_omp_trait_property *properties;
1629 } gfc_omp_selector;
1630 #define gfc_get_omp_selector() XCNEW (gfc_omp_selector)
1631
1632 typedef struct gfc_omp_set_selector
1633 {
1634 struct gfc_omp_set_selector *next;
1635
1636 const char *trait_set_selector_name;
1637 struct gfc_omp_selector *trait_selectors;
1638 } gfc_omp_set_selector;
1639 #define gfc_get_omp_set_selector() XCNEW (gfc_omp_set_selector)
1640
1641
1642 /* Node in the linked list used for storing !$omp declare variant
1643 constructs. */
1644
1645 typedef struct gfc_omp_declare_variant
1646 {
1647 struct gfc_omp_declare_variant *next;
1648 locus where; /* Where the !$omp declare variant construct occurred. */
1649
1650 struct gfc_symtree *base_proc_symtree;
1651 struct gfc_symtree *variant_proc_symtree;
1652
1653 gfc_omp_set_selector *set_selectors;
1654
1655 bool checked_p : 1; /* Set if previously checked for errors. */
1656 bool error_p : 1; /* Set if error found in directive. */
1657 }
1658 gfc_omp_declare_variant;
1659 #define gfc_get_omp_declare_variant() XCNEW (gfc_omp_declare_variant)
1660
1661
1662 typedef struct gfc_omp_udr
1663 {
1664 struct gfc_omp_udr *next;
1665 locus where; /* Where the !$omp declare reduction construct occurred. */
1666
1667 const char *name;
1668 gfc_typespec ts;
1669 gfc_omp_reduction_op rop;
1670
1671 struct gfc_symbol *omp_out;
1672 struct gfc_symbol *omp_in;
1673 struct gfc_namespace *combiner_ns;
1674
1675 struct gfc_symbol *omp_priv;
1676 struct gfc_symbol *omp_orig;
1677 struct gfc_namespace *initializer_ns;
1678 }
1679 gfc_omp_udr;
1680 #define gfc_get_omp_udr() XCNEW (gfc_omp_udr)
1681
1682 typedef struct gfc_omp_namelist_udr
1683 {
1684 struct gfc_omp_udr *udr;
1685 struct gfc_code *combiner;
1686 struct gfc_code *initializer;
1687 }
1688 gfc_omp_namelist_udr;
1689 #define gfc_get_omp_namelist_udr() XCNEW (gfc_omp_namelist_udr)
1690
1691 /* The gfc_st_label structure is a BBT attached to a namespace that
1692 records the usage of statement labels within that space. */
1693
1694 typedef struct gfc_st_label
1695 {
1696 BBT_HEADER(gfc_st_label);
1697
1698 int value;
1699
1700 gfc_sl_type defined, referenced;
1701
1702 struct gfc_expr *format;
1703
1704 tree backend_decl;
1705
1706 locus where;
1707
1708 gfc_namespace *ns;
1709 }
1710 gfc_st_label;
1711
1712
1713 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1714 typedef struct gfc_interface
1715 {
1716 struct gfc_symbol *sym;
1717 locus where;
1718 struct gfc_interface *next;
1719 }
1720 gfc_interface;
1721
1722 #define gfc_get_interface() XCNEW (gfc_interface)
1723
1724 /* User operator nodes. These are like stripped down symbols. */
1725 typedef struct
1726 {
1727 const char *name;
1728
1729 gfc_interface *op;
1730 struct gfc_namespace *ns;
1731 gfc_access access;
1732 }
1733 gfc_user_op;
1734
1735
1736 /* A list of specific bindings that are associated with a generic spec. */
1737 typedef struct gfc_tbp_generic
1738 {
1739 /* The parser sets specific_st, upon resolution we look for the corresponding
1740 gfc_typebound_proc and set specific for further use. */
1741 struct gfc_symtree* specific_st;
1742 struct gfc_typebound_proc* specific;
1743
1744 struct gfc_tbp_generic* next;
1745 bool is_operator;
1746 }
1747 gfc_tbp_generic;
1748
1749 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1750
1751
1752 /* Data needed for type-bound procedures. */
1753 typedef struct gfc_typebound_proc
1754 {
1755 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1756
1757 union
1758 {
1759 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1760 gfc_tbp_generic* generic;
1761 }
1762 u;
1763
1764 gfc_access access;
1765 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1766
1767 /* The overridden type-bound proc (or GENERIC with this name in the
1768 parent-type) or NULL if non. */
1769 struct gfc_typebound_proc* overridden;
1770
1771 /* Once resolved, we use the position of pass_arg in the formal arglist of
1772 the binding-target procedure to identify it. The first argument has
1773 number 1 here, the second 2, and so on. */
1774 unsigned pass_arg_num;
1775
1776 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1777 unsigned non_overridable:1;
1778 unsigned deferred:1;
1779 unsigned is_generic:1;
1780 unsigned function:1, subroutine:1;
1781 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1782 unsigned ppc:1;
1783 }
1784 gfc_typebound_proc;
1785
1786
1787 /* Symbol nodes. These are important things. They are what the
1788 standard refers to as "entities". The possibly multiple names that
1789 refer to the same entity are accomplished by a binary tree of
1790 symtree structures that is balanced by the red-black method-- more
1791 than one symtree node can point to any given symbol. */
1792
1793 typedef struct gfc_symbol
1794 {
1795 const char *name; /* Primary name, before renaming */
1796 const char *module; /* Module this symbol came from */
1797 locus declared_at;
1798
1799 gfc_typespec ts;
1800 symbol_attribute attr;
1801
1802 /* The formal member points to the formal argument list if the
1803 symbol is a function or subroutine name. If the symbol is a
1804 generic name, the generic member points to the list of
1805 interfaces. */
1806
1807 gfc_interface *generic;
1808 gfc_access component_access;
1809
1810 gfc_formal_arglist *formal;
1811 struct gfc_namespace *formal_ns;
1812 struct gfc_namespace *f2k_derived;
1813
1814 /* List of PDT parameter expressions */
1815 struct gfc_actual_arglist *param_list;
1816
1817 struct gfc_expr *value; /* Parameter/Initializer value */
1818 gfc_array_spec *as;
1819 struct gfc_symbol *result; /* function result symbol */
1820 gfc_component *components; /* Derived type components */
1821
1822 /* Defined only for Cray pointees; points to their pointer. */
1823 struct gfc_symbol *cp_pointer;
1824
1825 int entry_id; /* Used in resolve.c for entries. */
1826
1827 /* CLASS hashed name for declared and dynamic types in the class. */
1828 int hash_value;
1829
1830 struct gfc_symbol *common_next; /* Links for COMMON syms */
1831
1832 /* This is only used for pointer comparisons to check if symbols
1833 are in the same common block.
1834 In opposition to common_block, the common_head pointer takes into account
1835 equivalences: if A is in a common block C and A and B are in equivalence,
1836 then both A and B have common_head pointing to C, while A's common_block
1837 points to C and B's is NULL. */
1838 struct gfc_common_head* common_head;
1839
1840 /* Make sure setup code for dummy arguments is generated in the correct
1841 order. */
1842 int dummy_order;
1843
1844 gfc_namelist *namelist, *namelist_tail;
1845
1846 /* Change management fields. Symbols that might be modified by the
1847 current statement have the mark member nonzero. Of these symbols,
1848 symbols with old_symbol equal to NULL are symbols created within
1849 the current statement. Otherwise, old_symbol points to a copy of
1850 the old symbol. gfc_new is used in symbol.c to flag new symbols.
1851 comp_mark is used to indicate variables which have component accesses
1852 in OpenMP/OpenACC directive clauses. */
1853 struct gfc_symbol *old_symbol;
1854 unsigned mark:1, comp_mark:1, gfc_new:1;
1855
1856 /* The tlink field is used in the front end to carry the module
1857 declaration of separate module procedures so that the characteristics
1858 can be compared with the corresponding declaration in a submodule. In
1859 translation this field carries a linked list of symbols that require
1860 deferred initialization. */
1861 struct gfc_symbol *tlink;
1862
1863 /* Nonzero if all equivalences associated with this symbol have been
1864 processed. */
1865 unsigned equiv_built:1;
1866 /* Set if this variable is used as an index name in a FORALL. */
1867 unsigned forall_index:1;
1868 /* Set if the symbol is used in a function result specification . */
1869 unsigned fn_result_spec:1;
1870 /* Used to avoid multiple resolutions of a single symbol. */
1871 /* = 2 if this has already been resolved as an intrinsic,
1872 in gfc_resolve_intrinsic,
1873 = 1 if it has been resolved in resolve_symbol. */
1874 unsigned resolve_symbol_called:2;
1875 /* Set if this is a module function or subroutine with the
1876 abreviated declaration in a submodule. */
1877 unsigned abr_modproc_decl:1;
1878 /* Set if a previous error or warning has occurred and no other
1879 should be reported. */
1880 unsigned error:1;
1881 /* Set if the dummy argument of a procedure could be an array despite
1882 being called with a scalar actual argument. */
1883 unsigned maybe_array:1;
1884 /* Set if this should be passed by value, but is not a VALUE argument
1885 according to the Fortran standard. */
1886 unsigned pass_as_value:1;
1887
1888 int refs;
1889 struct gfc_namespace *ns; /* namespace containing this symbol */
1890
1891 tree backend_decl;
1892
1893 /* Identity of the intrinsic module the symbol comes from, or
1894 INTMOD_NONE if it's not imported from a intrinsic module. */
1895 intmod_id from_intmod;
1896 /* Identity of the symbol from intrinsic modules, from enums maintained
1897 separately by each intrinsic module. Used together with from_intmod,
1898 it uniquely identifies a symbol from an intrinsic module. */
1899 int intmod_sym_id;
1900
1901 /* This may be repetitive, since the typespec now has a binding
1902 label field. */
1903 const char* binding_label;
1904 /* Store a reference to the common_block, if this symbol is in one. */
1905 struct gfc_common_head *common_block;
1906
1907 /* Link to corresponding association-list if this is an associate name. */
1908 struct gfc_association_list *assoc;
1909
1910 /* Link to next entry in derived type list */
1911 struct gfc_symbol *dt_next;
1912 }
1913 gfc_symbol;
1914
1915
1916 struct gfc_undo_change_set
1917 {
1918 vec<gfc_symbol *> syms;
1919 vec<gfc_typebound_proc *> tbps;
1920 gfc_undo_change_set *previous;
1921 };
1922
1923
1924 /* This structure is used to keep track of symbols in common blocks. */
1925 typedef struct gfc_common_head
1926 {
1927 locus where;
1928 char use_assoc, saved, threadprivate;
1929 unsigned char omp_declare_target : 1;
1930 unsigned char omp_declare_target_link : 1;
1931 ENUM_BITFIELD (gfc_omp_device_type) omp_device_type:2;
1932 /* Provide sufficient space to hold "symbol.symbol.eq.1234567890". */
1933 char name[2*GFC_MAX_SYMBOL_LEN + 1 + 14 + 1];
1934 struct gfc_symbol *head;
1935 const char* binding_label;
1936 int is_bind_c;
1937 int refs;
1938 }
1939 gfc_common_head;
1940
1941 #define gfc_get_common_head() XCNEW (gfc_common_head)
1942
1943
1944 /* A list of all the alternate entry points for a procedure. */
1945
1946 typedef struct gfc_entry_list
1947 {
1948 /* The symbol for this entry point. */
1949 gfc_symbol *sym;
1950 /* The zero-based id of this entry point. */
1951 int id;
1952 /* The LABEL_EXPR marking this entry point. */
1953 tree label;
1954 /* The next item in the list. */
1955 struct gfc_entry_list *next;
1956 }
1957 gfc_entry_list;
1958
1959 #define gfc_get_entry_list() XCNEW (gfc_entry_list)
1960
1961 /* Lists of rename info for the USE statement. */
1962
1963 typedef struct gfc_use_rename
1964 {
1965 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1966 struct gfc_use_rename *next;
1967 int found;
1968 gfc_intrinsic_op op;
1969 locus where;
1970 }
1971 gfc_use_rename;
1972
1973 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1974
1975 /* A list of all USE statements in a namespace. */
1976
1977 typedef struct gfc_use_list
1978 {
1979 const char *module_name;
1980 const char *submodule_name;
1981 bool intrinsic;
1982 bool non_intrinsic;
1983 bool only_flag;
1984 struct gfc_use_rename *rename;
1985 locus where;
1986 /* Next USE statement. */
1987 struct gfc_use_list *next;
1988 }
1989 gfc_use_list;
1990
1991 #define gfc_get_use_list() XCNEW (gfc_use_list)
1992
1993 /* Within a namespace, symbols are pointed to by symtree nodes that
1994 are linked together in a balanced binary tree. There can be
1995 several symtrees pointing to the same symbol node via USE
1996 statements. */
1997
1998 typedef struct gfc_symtree
1999 {
2000 BBT_HEADER (gfc_symtree);
2001 const char *name;
2002 int ambiguous;
2003 union
2004 {
2005 gfc_symbol *sym; /* Symbol associated with this node */
2006 gfc_user_op *uop;
2007 gfc_common_head *common;
2008 gfc_typebound_proc *tb;
2009 gfc_omp_udr *omp_udr;
2010 }
2011 n;
2012 }
2013 gfc_symtree;
2014
2015 /* A list of all derived types. */
2016 extern gfc_symbol *gfc_derived_types;
2017
2018 typedef struct gfc_oacc_routine_name
2019 {
2020 struct gfc_symbol *sym;
2021 struct gfc_omp_clauses *clauses;
2022 struct gfc_oacc_routine_name *next;
2023 locus loc;
2024 }
2025 gfc_oacc_routine_name;
2026
2027 #define gfc_get_oacc_routine_name() XCNEW (gfc_oacc_routine_name)
2028
2029 /* Node in linked list to see what has already been finalized
2030 earlier. */
2031
2032 typedef struct gfc_was_finalized {
2033 gfc_expr *e;
2034 gfc_component *c;
2035 struct gfc_was_finalized *next;
2036 }
2037 gfc_was_finalized;
2038
2039 /* A namespace describes the contents of procedure, module, interface block
2040 or BLOCK construct. */
2041 /* ??? Anything else use these? */
2042
2043 typedef struct gfc_namespace
2044 {
2045 /* Tree containing all the symbols in this namespace. */
2046 gfc_symtree *sym_root;
2047 /* Tree containing all the user-defined operators in the namespace. */
2048 gfc_symtree *uop_root;
2049 /* Tree containing all the common blocks. */
2050 gfc_symtree *common_root;
2051 /* Tree containing all the OpenMP user defined reductions. */
2052 gfc_symtree *omp_udr_root;
2053
2054 /* Tree containing type-bound procedures. */
2055 gfc_symtree *tb_sym_root;
2056 /* Type-bound user operators. */
2057 gfc_symtree *tb_uop_root;
2058 /* For derived-types, store type-bound intrinsic operators here. */
2059 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
2060 /* Linked list of finalizer procedures. */
2061 struct gfc_finalizer *finalizers;
2062
2063 /* If set_flag[letter] is set, an implicit type has been set for letter. */
2064 int set_flag[GFC_LETTERS];
2065 /* Keeps track of the implicit types associated with the letters. */
2066 gfc_typespec default_type[GFC_LETTERS];
2067 /* Store the positions of IMPLICIT statements. */
2068 locus implicit_loc[GFC_LETTERS];
2069
2070 /* If this is a namespace of a procedure, this points to the procedure. */
2071 struct gfc_symbol *proc_name;
2072 /* If this is the namespace of a unit which contains executable
2073 code, this points to it. */
2074 struct gfc_code *code;
2075
2076 /* Points to the equivalences set up in this namespace. */
2077 struct gfc_equiv *equiv, *old_equiv;
2078
2079 /* Points to the equivalence groups produced by trans_common. */
2080 struct gfc_equiv_list *equiv_lists;
2081
2082 gfc_interface *op[GFC_INTRINSIC_OPS];
2083
2084 /* Points to the parent namespace, i.e. the namespace of a module or
2085 procedure in which the procedure belonging to this namespace is
2086 contained. The parent namespace points to this namespace either
2087 directly via CONTAINED, or indirectly via the chain built by
2088 SIBLING. */
2089 struct gfc_namespace *parent;
2090 /* CONTAINED points to the first contained namespace. Sibling
2091 namespaces are chained via SIBLING. */
2092 struct gfc_namespace *contained, *sibling;
2093
2094 gfc_common_head blank_common;
2095 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
2096
2097 gfc_st_label *st_labels;
2098 /* This list holds information about all the data initializers in
2099 this namespace. */
2100 struct gfc_data *data, *old_data;
2101
2102 /* !$ACC DECLARE. */
2103 gfc_oacc_declare *oacc_declare;
2104
2105 /* !$ACC ROUTINE clauses. */
2106 gfc_omp_clauses *oacc_routine_clauses;
2107
2108 /* !$ACC ROUTINE names. */
2109 gfc_oacc_routine_name *oacc_routine_names;
2110
2111 gfc_charlen *cl_list;
2112
2113 gfc_symbol *derived_types;
2114
2115 int save_all, seen_save, seen_implicit_none;
2116
2117 /* Normally we don't need to refcount namespaces. However when we read
2118 a module containing a function with multiple entry points, this
2119 will appear as several functions with the same formal namespace. */
2120 int refs;
2121
2122 /* A list of all alternate entry points to this procedure (or NULL). */
2123 gfc_entry_list *entries;
2124
2125 /* A list of USE statements in this namespace. */
2126 gfc_use_list *use_stmts;
2127
2128 /* Linked list of !$omp declare simd constructs. */
2129 struct gfc_omp_declare_simd *omp_declare_simd;
2130
2131 /* Linked list of !$omp declare variant constructs. */
2132 struct gfc_omp_declare_variant *omp_declare_variant;
2133
2134 /* A hash set for the the gfc expressions that have already
2135 been finalized in this namespace. */
2136
2137 gfc_was_finalized *was_finalized;
2138
2139 /* Set to 1 if namespace is a BLOCK DATA program unit. */
2140 unsigned is_block_data:1;
2141
2142 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
2143 unsigned has_import_set:1;
2144
2145 /* Set to 1 if the namespace uses "IMPLICT NONE (export)". */
2146 unsigned has_implicit_none_export:1;
2147
2148 /* Set to 1 if resolved has been called for this namespace.
2149 Holds -1 during resolution. */
2150 signed resolved:2;
2151
2152 /* Set when resolve_types has been called for this namespace. */
2153 unsigned types_resolved:1;
2154
2155 /* Set to 1 if code has been generated for this namespace. */
2156 unsigned translated:1;
2157
2158 /* Set to 1 if symbols in this namespace should be 'construct entities',
2159 i.e. for BLOCK local variables. */
2160 unsigned construct_entities:1;
2161
2162 /* Set to 1 for !$OMP DECLARE REDUCTION namespaces. */
2163 unsigned omp_udr_ns:1;
2164
2165 /* Set to 1 for !$ACC ROUTINE namespaces. */
2166 unsigned oacc_routine:1;
2167
2168 /* Set to 1 if there are any calls to procedures with implicit interface. */
2169 unsigned implicit_interface_calls:1;
2170
2171 /* OpenMP requires. */
2172 unsigned omp_requires:6;
2173 unsigned omp_target_seen:1;
2174 }
2175 gfc_namespace;
2176
2177 extern gfc_namespace *gfc_current_ns;
2178 extern gfc_namespace *gfc_global_ns_list;
2179
2180 /* Global symbols are symbols of global scope. Currently we only use
2181 this to detect collisions already when parsing.
2182 TODO: Extend to verify procedure calls. */
2183
2184 enum gfc_symbol_type
2185 {
2186 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
2187 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
2188 };
2189
2190 typedef struct gfc_gsymbol
2191 {
2192 BBT_HEADER(gfc_gsymbol);
2193
2194 const char *name;
2195 const char *sym_name;
2196 const char *mod_name;
2197 const char *binding_label;
2198 enum gfc_symbol_type type;
2199
2200 int defined, used;
2201 bool bind_c;
2202 locus where;
2203 gfc_namespace *ns;
2204 }
2205 gfc_gsymbol;
2206
2207 extern gfc_gsymbol *gfc_gsym_root;
2208
2209 /* Information on interfaces being built. */
2210 typedef struct
2211 {
2212 interface_type type;
2213 gfc_symbol *sym;
2214 gfc_namespace *ns;
2215 gfc_user_op *uop;
2216 gfc_intrinsic_op op;
2217 }
2218 gfc_interface_info;
2219
2220 extern gfc_interface_info current_interface;
2221
2222
2223 /* Array reference. */
2224
2225 enum gfc_array_ref_dimen_type
2226 {
2227 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_THIS_IMAGE, DIMEN_UNKNOWN
2228 };
2229
2230 typedef struct gfc_array_ref
2231 {
2232 ar_type type;
2233 int dimen; /* # of components in the reference */
2234 int codimen;
2235 bool in_allocate; /* For coarray checks. */
2236 gfc_expr *team;
2237 gfc_expr *stat;
2238 locus where;
2239 gfc_array_spec *as;
2240
2241 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
2242 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
2243 *stride[GFC_MAX_DIMENSIONS];
2244
2245 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
2246 }
2247 gfc_array_ref;
2248
2249 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
2250
2251
2252 /* Component reference nodes. A variable is stored as an expression
2253 node that points to the base symbol. After that, a singly linked
2254 list of component reference nodes gives the variable's complete
2255 resolution. The array_ref component may be present and comes
2256 before the component component. */
2257
2258 enum ref_type
2259 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING, REF_INQUIRY };
2260
2261 enum inquiry_type
2262 { INQUIRY_RE, INQUIRY_IM, INQUIRY_KIND, INQUIRY_LEN };
2263
2264 typedef struct gfc_ref
2265 {
2266 ref_type type;
2267
2268 union
2269 {
2270 struct gfc_array_ref ar;
2271
2272 struct
2273 {
2274 gfc_component *component;
2275 gfc_symbol *sym;
2276 }
2277 c;
2278
2279 struct
2280 {
2281 struct gfc_expr *start, *end; /* Substring */
2282 gfc_charlen *length;
2283 }
2284 ss;
2285
2286 inquiry_type i;
2287
2288 }
2289 u;
2290
2291 struct gfc_ref *next;
2292 }
2293 gfc_ref;
2294
2295 #define gfc_get_ref() XCNEW (gfc_ref)
2296
2297
2298 /* Structures representing intrinsic symbols and their arguments lists. */
2299 typedef struct gfc_intrinsic_arg
2300 {
2301 char name[GFC_MAX_SYMBOL_LEN + 1];
2302
2303 gfc_typespec ts;
2304 unsigned optional:1, value:1;
2305 ENUM_BITFIELD (sym_intent) intent:2;
2306
2307 struct gfc_intrinsic_arg *next;
2308 }
2309 gfc_intrinsic_arg;
2310
2311
2312 typedef enum {
2313 GFC_UNDEFINED_DUMMY_ARG = 0,
2314 GFC_INTRINSIC_DUMMY_ARG,
2315 GFC_NON_INTRINSIC_DUMMY_ARG
2316 }
2317 gfc_dummy_arg_intrinsicness;
2318
2319 /* dummy arg of either an intrinsic or a user-defined procedure. */
2320 struct gfc_dummy_arg
2321 {
2322 gfc_dummy_arg_intrinsicness intrinsicness;
2323
2324 union {
2325 gfc_intrinsic_arg *intrinsic;
2326 gfc_formal_arglist *non_intrinsic;
2327 } u;
2328 };
2329
2330 #define gfc_get_dummy_arg() XCNEW (gfc_dummy_arg)
2331
2332
2333 const char * gfc_dummy_arg_get_name (gfc_dummy_arg &);
2334 const gfc_typespec & gfc_dummy_arg_get_typespec (gfc_dummy_arg &);
2335 bool gfc_dummy_arg_is_optional (gfc_dummy_arg &);
2336
2337
2338 /* Specifies the various kinds of check functions used to verify the
2339 argument lists of intrinsic functions. fX with X an integer refer
2340 to check functions of intrinsics with X arguments. f1m is used for
2341 the MAX and MIN intrinsics which can have an arbitrary number of
2342 arguments, f4ml is used for the MINLOC and MAXLOC intrinsics as
2343 these have special semantics. */
2344
2345 typedef union
2346 {
2347 bool (*f0)(void);
2348 bool (*f1)(struct gfc_expr *);
2349 bool (*f1m)(gfc_actual_arglist *);
2350 bool (*f2)(struct gfc_expr *, struct gfc_expr *);
2351 bool (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2352 bool (*f5ml)(gfc_actual_arglist *);
2353 bool (*f6fl)(gfc_actual_arglist *);
2354 bool (*f3red)(gfc_actual_arglist *);
2355 bool (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2356 struct gfc_expr *);
2357 bool (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2358 struct gfc_expr *, struct gfc_expr *);
2359 }
2360 gfc_check_f;
2361
2362 /* Like gfc_check_f, these specify the type of the simplification
2363 function associated with an intrinsic. The fX are just like in
2364 gfc_check_f. cc is used for type conversion functions. */
2365
2366 typedef union
2367 {
2368 struct gfc_expr *(*f0)(void);
2369 struct gfc_expr *(*f1)(struct gfc_expr *);
2370 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
2371 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
2372 struct gfc_expr *);
2373 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
2374 struct gfc_expr *, struct gfc_expr *);
2375 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
2376 struct gfc_expr *, struct gfc_expr *,
2377 struct gfc_expr *);
2378 struct gfc_expr *(*f6)(struct gfc_expr *, struct gfc_expr *,
2379 struct gfc_expr *, struct gfc_expr *,
2380 struct gfc_expr *, struct gfc_expr *);
2381 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
2382 }
2383 gfc_simplify_f;
2384
2385 /* Again like gfc_check_f, these specify the type of the resolution
2386 function associated with an intrinsic. The fX are just like in
2387 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
2388
2389 typedef union
2390 {
2391 void (*f0)(struct gfc_expr *);
2392 void (*f1)(struct gfc_expr *, struct gfc_expr *);
2393 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
2394 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2395 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2396 struct gfc_expr *);
2397 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2398 struct gfc_expr *, struct gfc_expr *);
2399 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2400 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2401 void (*f6)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2402 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2403 struct gfc_expr *);
2404 void (*s1)(struct gfc_code *);
2405 }
2406 gfc_resolve_f;
2407
2408
2409 typedef struct gfc_intrinsic_sym
2410 {
2411 const char *name, *lib_name;
2412 gfc_intrinsic_arg *formal;
2413 gfc_typespec ts;
2414 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
2415 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1,
2416 from_module:1, vararg:1;
2417
2418 int standard;
2419
2420 gfc_simplify_f simplify;
2421 gfc_check_f check;
2422 gfc_resolve_f resolve;
2423 struct gfc_intrinsic_sym *specific_head, *next;
2424 gfc_isym_id id;
2425
2426 }
2427 gfc_intrinsic_sym;
2428
2429
2430 /* Expression nodes. The expression node types deserve explanations,
2431 since the last couple can be easily misconstrued:
2432
2433 EXPR_OP Operator node pointing to one or two other nodes
2434 EXPR_FUNCTION Function call, symbol points to function's name
2435 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
2436 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
2437 which expresses structure, array and substring refs.
2438 EXPR_NULL The NULL pointer value (which also has a basic type).
2439 EXPR_SUBSTRING A substring of a constant string
2440 EXPR_STRUCTURE A structure constructor
2441 EXPR_ARRAY An array constructor.
2442 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
2443 component or type-bound procedure. */
2444
2445 #include <mpfr.h>
2446 #include <mpc.h>
2447 #define GFC_RND_MODE MPFR_RNDN
2448 #define GFC_MPC_RND_MODE MPC_RNDNN
2449
2450 typedef splay_tree gfc_constructor_base;
2451
2452
2453 /* This should be an unsigned variable of type size_t. But to handle
2454 compiling to a 64-bit target from a 32-bit host, we need to use a
2455 HOST_WIDE_INT. Also, occasionally the string length field is used
2456 as a flag with values -1 and -2, see e.g. gfc_add_assign_aux_vars.
2457 So it needs to be signed. */
2458 typedef HOST_WIDE_INT gfc_charlen_t;
2459
2460 typedef struct gfc_expr
2461 {
2462 expr_t expr_type;
2463
2464 gfc_typespec ts; /* These two refer to the overall expression */
2465
2466 int rank; /* 0 indicates a scalar, -1 an assumed-rank array. */
2467 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
2468
2469 /* Nonnull for functions and structure constructors, may also used to hold the
2470 base-object for component calls. */
2471 gfc_symtree *symtree;
2472
2473 gfc_ref *ref;
2474
2475 locus where;
2476
2477 /* Used to store the base expression in component calls, when the expression
2478 is not a variable. */
2479 struct gfc_expr *base_expr;
2480
2481 /* is_snan denotes a signalling not-a-number. */
2482 unsigned int is_snan : 1;
2483
2484 /* Sometimes, when an error has been emitted, it is necessary to prevent
2485 it from recurring. */
2486 unsigned int error : 1;
2487
2488 /* Mark an expression where a user operator has been substituted by
2489 a function call in interface.c(gfc_extend_expr). */
2490 unsigned int user_operator : 1;
2491
2492 /* Mark an expression as being a MOLD argument of ALLOCATE. */
2493 unsigned int mold : 1;
2494
2495 /* Will require finalization after use. */
2496 unsigned int must_finalize : 1;
2497
2498 /* Set this if no range check should be performed on this expression. */
2499
2500 unsigned int no_bounds_check : 1;
2501
2502 /* Set this if a matmul expression has already been evaluated for conversion
2503 to a BLAS call. */
2504
2505 unsigned int external_blas : 1;
2506
2507 /* Set this if resolution has already happened. It could be harmful
2508 if done again. */
2509
2510 unsigned int do_not_resolve_again : 1;
2511
2512 /* Set this if no warning should be given somewhere in a lower level. */
2513
2514 unsigned int do_not_warn : 1;
2515
2516 /* Set this if the expression came from expanding an array constructor. */
2517 unsigned int from_constructor : 1;
2518
2519 /* If an expression comes from a Hollerith constant or compile-time
2520 evaluation of a transfer statement, it may have a prescribed target-
2521 memory representation, and these cannot always be backformed from
2522 the value. */
2523 struct
2524 {
2525 gfc_charlen_t length;
2526 char *string;
2527 }
2528 representation;
2529
2530 struct
2531 {
2532 int len; /* Length of BOZ string without terminating NULL. */
2533 int rdx; /* Radix of BOZ. */
2534 char *str; /* BOZ string with NULL terminating character. */
2535 }
2536 boz;
2537
2538 union
2539 {
2540 int logical;
2541
2542 io_kind iokind;
2543
2544 mpz_t integer;
2545
2546 mpfr_t real;
2547
2548 mpc_t complex;
2549
2550 struct
2551 {
2552 gfc_intrinsic_op op;
2553 gfc_user_op *uop;
2554 struct gfc_expr *op1, *op2;
2555 }
2556 op;
2557
2558 struct
2559 {
2560 gfc_actual_arglist *actual;
2561 const char *name; /* Points to the ultimate name of the function */
2562 gfc_intrinsic_sym *isym;
2563 gfc_symbol *esym;
2564 }
2565 function;
2566
2567 struct
2568 {
2569 gfc_actual_arglist* actual;
2570 const char* name;
2571 /* Base-object, whose component was called. NULL means that it should
2572 be taken from symtree/ref. */
2573 struct gfc_expr* base_object;
2574 gfc_typebound_proc* tbp; /* Should overlap with esym. */
2575
2576 /* For type-bound operators, we want to call PASS procedures but already
2577 have the full arglist; mark this, so that it is not extended by the
2578 PASS argument. */
2579 unsigned ignore_pass:1;
2580
2581 /* Do assign-calls rather than calls, that is appropriate dependency
2582 checking. */
2583 unsigned assign:1;
2584 }
2585 compcall;
2586
2587 struct
2588 {
2589 gfc_charlen_t length;
2590 gfc_char_t *string;
2591 }
2592 character;
2593
2594 gfc_constructor_base constructor;
2595 }
2596 value;
2597
2598 /* Used to store PDT expression lists associated with expressions. */
2599 gfc_actual_arglist *param_list;
2600
2601 }
2602 gfc_expr;
2603
2604
2605 #define gfc_get_shape(rank) (XCNEWVEC (mpz_t, (rank)))
2606
2607 /* Structures for information associated with different kinds of
2608 numbers. The first set of integer parameters define all there is
2609 to know about a particular kind. The rest of the elements are
2610 computed from the first elements. */
2611
2612 typedef struct
2613 {
2614 /* Values really representable by the target. */
2615 mpz_t huge, pedantic_min_int, min_int;
2616
2617 int kind, radix, digits, bit_size, range;
2618
2619 /* True if the C type of the given name maps to this precision.
2620 Note that more than one bit can be set. */
2621 unsigned int c_char : 1;
2622 unsigned int c_short : 1;
2623 unsigned int c_int : 1;
2624 unsigned int c_long : 1;
2625 unsigned int c_long_long : 1;
2626 }
2627 gfc_integer_info;
2628
2629 extern gfc_integer_info gfc_integer_kinds[];
2630
2631
2632 typedef struct
2633 {
2634 int kind, bit_size;
2635
2636 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
2637 unsigned int c_bool : 1;
2638 }
2639 gfc_logical_info;
2640
2641 extern gfc_logical_info gfc_logical_kinds[];
2642
2643
2644 typedef struct
2645 {
2646 mpfr_t epsilon, huge, tiny, subnormal;
2647 int kind, radix, digits, min_exponent, max_exponent;
2648 int range, precision;
2649
2650 /* The precision of the type as reported by GET_MODE_PRECISION. */
2651 int mode_precision;
2652
2653 /* True if the C type of the given name maps to this precision.
2654 Note that more than one bit can be set. */
2655 unsigned int c_float : 1;
2656 unsigned int c_double : 1;
2657 unsigned int c_long_double : 1;
2658 unsigned int c_float128 : 1;
2659 }
2660 gfc_real_info;
2661
2662 extern gfc_real_info gfc_real_kinds[];
2663
2664 typedef struct
2665 {
2666 int kind, bit_size;
2667 const char *name;
2668 }
2669 gfc_character_info;
2670
2671 extern gfc_character_info gfc_character_kinds[];
2672
2673
2674 /* Equivalence structures. Equivalent lvalues are linked along the
2675 *eq pointer, equivalence sets are strung along the *next node. */
2676 typedef struct gfc_equiv
2677 {
2678 struct gfc_equiv *next, *eq;
2679 gfc_expr *expr;
2680 const char *module;
2681 int used;
2682 }
2683 gfc_equiv;
2684
2685 #define gfc_get_equiv() XCNEW (gfc_equiv)
2686
2687 /* Holds a single equivalence member after processing. */
2688 typedef struct gfc_equiv_info
2689 {
2690 gfc_symbol *sym;
2691 HOST_WIDE_INT offset;
2692 HOST_WIDE_INT length;
2693 struct gfc_equiv_info *next;
2694 } gfc_equiv_info;
2695
2696 /* Holds equivalence groups, after they have been processed. */
2697 typedef struct gfc_equiv_list
2698 {
2699 gfc_equiv_info *equiv;
2700 struct gfc_equiv_list *next;
2701 } gfc_equiv_list;
2702
2703 /* gfc_case stores the selector list of a case statement. The *low
2704 and *high pointers can point to the same expression in the case of
2705 a single value. If *high is NULL, the selection is from *low
2706 upwards, if *low is NULL the selection is *high downwards.
2707
2708 This structure has separate fields to allow single and double linked
2709 lists of CASEs at the same time. The singe linked list along the NEXT
2710 field is a list of cases for a single CASE label. The double linked
2711 list along the LEFT/RIGHT fields is used to detect overlap and to
2712 build a table of the cases for SELECT constructs with a CHARACTER
2713 case expression. */
2714
2715 typedef struct gfc_case
2716 {
2717 /* Where we saw this case. */
2718 locus where;
2719 int n;
2720
2721 /* Case range values. If (low == high), it's a single value. If one of
2722 the labels is NULL, it's an unbounded case. If both are NULL, this
2723 represents the default case. */
2724 gfc_expr *low, *high;
2725
2726 /* Only used for SELECT TYPE. */
2727 gfc_typespec ts;
2728
2729 /* Next case label in the list of cases for a single CASE label. */
2730 struct gfc_case *next;
2731
2732 /* Used for detecting overlap, and for code generation. */
2733 struct gfc_case *left, *right;
2734
2735 /* True if this case label can never be matched. */
2736 int unreachable;
2737 }
2738 gfc_case;
2739
2740 #define gfc_get_case() XCNEW (gfc_case)
2741
2742
2743 typedef struct
2744 {
2745 gfc_expr *var, *start, *end, *step;
2746 unsigned short unroll;
2747 bool ivdep;
2748 bool vector;
2749 bool novector;
2750 }
2751 gfc_iterator;
2752
2753 #define gfc_get_iterator() XCNEW (gfc_iterator)
2754
2755
2756 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
2757
2758 typedef struct gfc_alloc
2759 {
2760 gfc_expr *expr;
2761 struct gfc_alloc *next;
2762 }
2763 gfc_alloc;
2764
2765 #define gfc_get_alloc() XCNEW (gfc_alloc)
2766
2767
2768 typedef struct
2769 {
2770 gfc_expr *unit, *file, *status, *access, *form, *recl,
2771 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
2772 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit,
2773 *share, *cc;
2774 char readonly;
2775 gfc_st_label *err;
2776 }
2777 gfc_open;
2778
2779
2780 typedef struct
2781 {
2782 gfc_expr *unit, *status, *iostat, *iomsg;
2783 gfc_st_label *err;
2784 }
2785 gfc_close;
2786
2787
2788 typedef struct
2789 {
2790 gfc_expr *unit, *iostat, *iomsg;
2791 gfc_st_label *err;
2792 }
2793 gfc_filepos;
2794
2795
2796 typedef struct
2797 {
2798 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
2799 *name, *access, *sequential, *direct, *form, *formatted,
2800 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
2801 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
2802 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id,
2803 *iqstream, *share, *cc;
2804
2805 gfc_st_label *err;
2806
2807 }
2808 gfc_inquire;
2809
2810
2811 typedef struct
2812 {
2813 gfc_expr *unit, *iostat, *iomsg, *id;
2814 gfc_st_label *err, *end, *eor;
2815 }
2816 gfc_wait;
2817
2818
2819 typedef struct
2820 {
2821 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
2822 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
2823 *sign, *extra_comma, *dt_io_kind, *udtio;
2824 char dec_ext;
2825
2826 gfc_symbol *namelist;
2827 /* A format_label of `format_asterisk' indicates the "*" format */
2828 gfc_st_label *format_label;
2829 gfc_st_label *err, *end, *eor;
2830
2831 locus eor_where, end_where, err_where;
2832 }
2833 gfc_dt;
2834
2835
2836 typedef struct gfc_forall_iterator
2837 {
2838 gfc_expr *var, *start, *end, *stride;
2839 struct gfc_forall_iterator *next;
2840 }
2841 gfc_forall_iterator;
2842
2843
2844 /* Linked list to store associations in an ASSOCIATE statement. */
2845
2846 typedef struct gfc_association_list
2847 {
2848 struct gfc_association_list *next;
2849
2850 /* Whether this is association to a variable that can be changed; otherwise,
2851 it's association to an expression and the name may not be used as
2852 lvalue. */
2853 unsigned variable:1;
2854
2855 /* True if this struct is currently only linked to from a gfc_symbol rather
2856 than as part of a real list in gfc_code->ext.block.assoc. This may
2857 happen for SELECT TYPE temporaries and must be considered
2858 for memory handling. */
2859 unsigned dangling:1;
2860
2861 /* True when the rank of the target expression is guessed during parsing. */
2862 unsigned rankguessed:1;
2863
2864 char name[GFC_MAX_SYMBOL_LEN + 1];
2865 gfc_symtree *st; /* Symtree corresponding to name. */
2866 locus where;
2867
2868 gfc_expr *target;
2869 }
2870 gfc_association_list;
2871 #define gfc_get_association_list() XCNEW (gfc_association_list)
2872
2873
2874 /* Executable statements that fill gfc_code structures. */
2875 enum gfc_exec_op
2876 {
2877 EXEC_NOP = 1, EXEC_END_NESTED_BLOCK, EXEC_END_BLOCK, EXEC_ASSIGN,
2878 EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2879 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2880 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2881 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_CONCURRENT, EXEC_DO_WHILE,
2882 EXEC_SELECT, EXEC_BLOCK, EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
2883 EXEC_CALL_PPC, EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE,
2884 EXEC_SELECT_TYPE, EXEC_SELECT_RANK, EXEC_SYNC_ALL, EXEC_SYNC_MEMORY,
2885 EXEC_SYNC_IMAGES, EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2886 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2887 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2888 EXEC_FORM_TEAM, EXEC_CHANGE_TEAM, EXEC_END_TEAM, EXEC_SYNC_TEAM,
2889 EXEC_LOCK, EXEC_UNLOCK, EXEC_EVENT_POST, EXEC_EVENT_WAIT, EXEC_FAIL_IMAGE,
2890 EXEC_OACC_KERNELS_LOOP, EXEC_OACC_PARALLEL_LOOP, EXEC_OACC_SERIAL_LOOP,
2891 EXEC_OACC_ROUTINE, EXEC_OACC_PARALLEL, EXEC_OACC_KERNELS, EXEC_OACC_SERIAL,
2892 EXEC_OACC_DATA, EXEC_OACC_HOST_DATA, EXEC_OACC_LOOP, EXEC_OACC_UPDATE,
2893 EXEC_OACC_WAIT, EXEC_OACC_CACHE, EXEC_OACC_ENTER_DATA, EXEC_OACC_EXIT_DATA,
2894 EXEC_OACC_ATOMIC, EXEC_OACC_DECLARE,
2895 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2896 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2897 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2898 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2899 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2900 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT,
2901 EXEC_OMP_TASKYIELD, EXEC_OMP_CANCEL, EXEC_OMP_CANCELLATION_POINT,
2902 EXEC_OMP_TASKGROUP, EXEC_OMP_SIMD, EXEC_OMP_DO_SIMD,
2903 EXEC_OMP_PARALLEL_DO_SIMD, EXEC_OMP_TARGET, EXEC_OMP_TARGET_DATA,
2904 EXEC_OMP_TEAMS, EXEC_OMP_DISTRIBUTE, EXEC_OMP_DISTRIBUTE_SIMD,
2905 EXEC_OMP_DISTRIBUTE_PARALLEL_DO, EXEC_OMP_DISTRIBUTE_PARALLEL_DO_SIMD,
2906 EXEC_OMP_TARGET_TEAMS, EXEC_OMP_TEAMS_DISTRIBUTE,
2907 EXEC_OMP_TEAMS_DISTRIBUTE_SIMD, EXEC_OMP_TARGET_TEAMS_DISTRIBUTE,
2908 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD,
2909 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO,
2910 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
2911 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
2912 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
2913 EXEC_OMP_TARGET_UPDATE, EXEC_OMP_END_CRITICAL,
2914 EXEC_OMP_TARGET_ENTER_DATA, EXEC_OMP_TARGET_EXIT_DATA,
2915 EXEC_OMP_TARGET_PARALLEL, EXEC_OMP_TARGET_PARALLEL_DO,
2916 EXEC_OMP_TARGET_PARALLEL_DO_SIMD, EXEC_OMP_TARGET_SIMD,
2917 EXEC_OMP_TASKLOOP, EXEC_OMP_TASKLOOP_SIMD, EXEC_OMP_SCAN, EXEC_OMP_DEPOBJ,
2918 EXEC_OMP_PARALLEL_MASTER, EXEC_OMP_PARALLEL_MASTER_TASKLOOP,
2919 EXEC_OMP_PARALLEL_MASTER_TASKLOOP_SIMD, EXEC_OMP_MASTER_TASKLOOP,
2920 EXEC_OMP_MASTER_TASKLOOP_SIMD, EXEC_OMP_LOOP, EXEC_OMP_PARALLEL_LOOP,
2921 EXEC_OMP_TEAMS_LOOP, EXEC_OMP_TARGET_PARALLEL_LOOP,
2922 EXEC_OMP_TARGET_TEAMS_LOOP, EXEC_OMP_MASKED, EXEC_OMP_PARALLEL_MASKED,
2923 EXEC_OMP_PARALLEL_MASKED_TASKLOOP, EXEC_OMP_PARALLEL_MASKED_TASKLOOP_SIMD,
2924 EXEC_OMP_MASKED_TASKLOOP, EXEC_OMP_MASKED_TASKLOOP_SIMD, EXEC_OMP_SCOPE,
2925 EXEC_OMP_ERROR
2926 };
2927
2928 typedef struct gfc_code
2929 {
2930 gfc_exec_op op;
2931
2932 struct gfc_code *block, *next;
2933 locus loc;
2934
2935 gfc_st_label *here, *label1, *label2, *label3;
2936 gfc_symtree *symtree;
2937 gfc_expr *expr1, *expr2, *expr3, *expr4;
2938 /* A name isn't sufficient to identify a subroutine, we need the actual
2939 symbol for the interface definition.
2940 const char *sub_name; */
2941 gfc_symbol *resolved_sym;
2942 gfc_intrinsic_sym *resolved_isym;
2943
2944 union
2945 {
2946 gfc_actual_arglist *actual;
2947 gfc_iterator *iterator;
2948
2949 struct
2950 {
2951 gfc_typespec ts;
2952 gfc_alloc *list;
2953 /* Take the array specification from expr3 to allocate arrays
2954 without an explicit array specification. */
2955 unsigned arr_spec_from_expr3:1;
2956 }
2957 alloc;
2958
2959 struct
2960 {
2961 gfc_namespace *ns;
2962 gfc_association_list *assoc;
2963 gfc_case *case_list;
2964 }
2965 block;
2966
2967 gfc_open *open;
2968 gfc_close *close;
2969 gfc_filepos *filepos;
2970 gfc_inquire *inquire;
2971 gfc_wait *wait;
2972 gfc_dt *dt;
2973 gfc_forall_iterator *forall_iterator;
2974 struct gfc_code *which_construct;
2975 int stop_code;
2976 gfc_entry_list *entry;
2977 gfc_oacc_declare *oacc_declare;
2978 gfc_omp_clauses *omp_clauses;
2979 const char *omp_name;
2980 gfc_omp_namelist *omp_namelist;
2981 bool omp_bool;
2982 }
2983 ext; /* Points to additional structures required by statement */
2984
2985 /* Cycle and break labels in constructs. */
2986 tree cycle_label;
2987 tree exit_label;
2988 }
2989 gfc_code;
2990
2991
2992 /* Storage for DATA statements. */
2993 typedef struct gfc_data_variable
2994 {
2995 gfc_expr *expr;
2996 gfc_iterator iter;
2997 struct gfc_data_variable *list, *next;
2998 }
2999 gfc_data_variable;
3000
3001
3002 typedef struct gfc_data_value
3003 {
3004 mpz_t repeat;
3005 gfc_expr *expr;
3006 struct gfc_data_value *next;
3007 }
3008 gfc_data_value;
3009
3010
3011 typedef struct gfc_data
3012 {
3013 gfc_data_variable *var;
3014 gfc_data_value *value;
3015 locus where;
3016
3017 struct gfc_data *next;
3018 }
3019 gfc_data;
3020
3021
3022 /* Structure for holding compile options */
3023 typedef struct
3024 {
3025 char *module_dir;
3026 gfc_source_form source_form;
3027 int max_continue_fixed;
3028 int max_continue_free;
3029 int max_identifier_length;
3030
3031 int max_errors;
3032
3033 int flag_preprocessed;
3034 int flag_d_lines;
3035 int flag_init_integer;
3036 long flag_init_integer_value;
3037 int flag_init_logical;
3038 int flag_init_character;
3039 char flag_init_character_value;
3040
3041 int fpe;
3042 int fpe_summary;
3043 int rtcheck;
3044
3045 int warn_std;
3046 int allow_std;
3047 }
3048 gfc_option_t;
3049
3050 extern gfc_option_t gfc_option;
3051
3052 /* Constructor nodes for array and structure constructors. */
3053 typedef struct gfc_constructor
3054 {
3055 gfc_constructor_base base;
3056 mpz_t offset; /* Offset within a constructor, used as
3057 key within base. */
3058
3059 gfc_expr *expr;
3060 gfc_iterator *iterator;
3061 locus where;
3062
3063 union
3064 {
3065 gfc_component *component; /* Record the component being initialized. */
3066 }
3067 n;
3068 mpz_t repeat; /* Record the repeat number of initial values in data
3069 statement like "data a/5*10/". */
3070 }
3071 gfc_constructor;
3072
3073
3074 typedef struct iterator_stack
3075 {
3076 gfc_symtree *variable;
3077 mpz_t value;
3078 struct iterator_stack *prev;
3079 }
3080 iterator_stack;
3081 extern iterator_stack *iter_stack;
3082
3083
3084 /* Used for (possibly nested) SELECT TYPE statements. */
3085 typedef struct gfc_select_type_stack
3086 {
3087 gfc_symbol *selector; /* Current selector variable. */
3088 gfc_symtree *tmp; /* Current temporary variable. */
3089 struct gfc_select_type_stack *prev; /* Previous element on stack. */
3090 }
3091 gfc_select_type_stack;
3092 extern gfc_select_type_stack *select_type_stack;
3093 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
3094
3095
3096 /* Node in the linked list used for storing finalizer procedures. */
3097
3098 typedef struct gfc_finalizer
3099 {
3100 struct gfc_finalizer* next;
3101 locus where; /* Where the FINAL declaration occurred. */
3102
3103 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
3104 symtree and later need only that. This way, we can access and call the
3105 finalizers from every context as they should be "always accessible". I
3106 don't make this a union because we need the information whether proc_sym is
3107 still referenced or not for dereferencing it on deleting a gfc_finalizer
3108 structure. */
3109 gfc_symbol* proc_sym;
3110 gfc_symtree* proc_tree;
3111 }
3112 gfc_finalizer;
3113 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
3114
3115
3116 /************************ Function prototypes *************************/
3117
3118 /* decl.c */
3119 bool gfc_in_match_data (void);
3120 match gfc_match_char_spec (gfc_typespec *);
3121 extern int directive_unroll;
3122 extern bool directive_ivdep;
3123 extern bool directive_vector;
3124 extern bool directive_novector;
3125
3126 /* SIMD clause enum. */
3127 enum gfc_simd_clause
3128 {
3129 SIMD_NONE = (1 << 0),
3130 SIMD_INBRANCH = (1 << 1),
3131 SIMD_NOTINBRANCH = (1 << 2)
3132 };
3133
3134 /* Tuple for parsing of vectorized built-ins. */
3135 struct gfc_vect_builtin_tuple
3136 {
gfc_vect_builtin_tuplegfc_vect_builtin_tuple3137 gfc_vect_builtin_tuple (const char *n, gfc_simd_clause t)
3138 : name (n), simd_type (t) {}
3139
3140 const char *name;
3141 gfc_simd_clause simd_type;
3142 };
3143
3144 /* Map of middle-end built-ins that should be vectorized. */
3145 extern hash_map<nofree_string_hash, int> *gfc_vectorized_builtins;
3146
3147 /* Handling Parameterized Derived Types */
3148 bool gfc_insert_parameter_exprs (gfc_expr *, gfc_actual_arglist *);
3149 match gfc_get_pdt_instance (gfc_actual_arglist *, gfc_symbol **,
3150 gfc_actual_arglist **);
3151
3152
3153 /* Given a symbol, test whether it is a module procedure in a submodule */
3154 #define gfc_submodule_procedure(attr) \
3155 (gfc_state_stack->previous && gfc_state_stack->previous->previous \
3156 && gfc_state_stack->previous->previous->state == COMP_SUBMODULE \
3157 && attr->module_procedure)
3158
3159 /* scanner.c */
3160 void gfc_scanner_done_1 (void);
3161 void gfc_scanner_init_1 (void);
3162
3163 void gfc_add_include_path (const char *, bool, bool, bool, bool);
3164 void gfc_add_intrinsic_modules_path (const char *);
3165 void gfc_release_include_path (void);
3166 void gfc_check_include_dirs (bool);
3167 FILE *gfc_open_included_file (const char *, bool, bool);
3168
3169 int gfc_at_end (void);
3170 int gfc_at_eof (void);
3171 int gfc_at_bol (void);
3172 int gfc_at_eol (void);
3173 void gfc_advance_line (void);
3174 int gfc_check_include (void);
3175 int gfc_define_undef_line (void);
3176
3177 int gfc_wide_is_printable (gfc_char_t);
3178 int gfc_wide_is_digit (gfc_char_t);
3179 int gfc_wide_fits_in_byte (gfc_char_t);
3180 gfc_char_t gfc_wide_tolower (gfc_char_t);
3181 gfc_char_t gfc_wide_toupper (gfc_char_t);
3182 size_t gfc_wide_strlen (const gfc_char_t *);
3183 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
3184 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
3185 char *gfc_widechar_to_char (const gfc_char_t *, int);
3186 gfc_char_t *gfc_char_to_widechar (const char *);
3187
3188 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
3189
3190 void gfc_skip_comments (void);
3191 gfc_char_t gfc_next_char_literal (gfc_instring);
3192 gfc_char_t gfc_next_char (void);
3193 char gfc_next_ascii_char (void);
3194 gfc_char_t gfc_peek_char (void);
3195 char gfc_peek_ascii_char (void);
3196 void gfc_error_recovery (void);
3197 void gfc_gobble_whitespace (void);
3198 void gfc_new_file (void);
3199 const char * gfc_read_orig_filename (const char *, const char **);
3200
3201 extern gfc_source_form gfc_current_form;
3202 extern const char *gfc_source_file;
3203 extern locus gfc_current_locus;
3204
3205 void gfc_start_source_files (void);
3206 void gfc_end_source_files (void);
3207
3208 /* misc.c */
3209 void gfc_clear_ts (gfc_typespec *);
3210 FILE *gfc_open_file (const char *);
3211 const char *gfc_basic_typename (bt);
3212 const char *gfc_dummy_typename (gfc_typespec *);
3213 const char *gfc_typename (gfc_typespec *, bool for_hash = false);
3214 const char *gfc_typename (gfc_expr *);
3215 const char *gfc_op2string (gfc_intrinsic_op);
3216 const char *gfc_code2string (const mstring *, int);
3217 int gfc_string2code (const mstring *, const char *);
3218 const char *gfc_intent_string (sym_intent);
3219
3220 void gfc_init_1 (void);
3221 void gfc_init_2 (void);
3222 void gfc_done_1 (void);
3223 void gfc_done_2 (void);
3224
3225 int get_c_kind (const char *, CInteropKind_t *);
3226
3227 const char *gfc_closest_fuzzy_match (const char *, char **);
3228 static inline void
vec_push(char ** & optr,size_t & osz,const char * elt)3229 vec_push (char **&optr, size_t &osz, const char *elt)
3230 {
3231 /* {auto,}vec.safe_push () replacement. Don't ask.. */
3232 // if (strlen (elt) < 4) return; premature optimization: eliminated by cutoff
3233 optr = XRESIZEVEC (char *, optr, osz + 2);
3234 optr[osz] = CONST_CAST (char *, elt);
3235 optr[++osz] = NULL;
3236 }
3237
3238 HOST_WIDE_INT gfc_mpz_get_hwi (mpz_t);
3239 void gfc_mpz_set_hwi (mpz_t, const HOST_WIDE_INT);
3240
3241 /* options.c */
3242 unsigned int gfc_option_lang_mask (void);
3243 void gfc_init_options_struct (struct gcc_options *);
3244 void gfc_init_options (unsigned int,
3245 struct cl_decoded_option *);
3246 bool gfc_handle_option (size_t, const char *, HOST_WIDE_INT, int, location_t,
3247 const struct cl_option_handlers *);
3248 bool gfc_post_options (const char **);
3249 char *gfc_get_option_string (void);
3250
3251 /* f95-lang.c */
3252 void gfc_maybe_initialize_eh (void);
3253
3254 /* iresolve.c */
3255 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
3256 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
3257
3258 /* error.c */
3259 void gfc_error_init_1 (void);
3260 void gfc_diagnostics_init (void);
3261 void gfc_diagnostics_finish (void);
3262 void gfc_buffer_error (bool);
3263
3264 const char *gfc_print_wide_char (gfc_char_t);
3265
3266 bool gfc_warning (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3267 bool gfc_warning_now (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3268 bool gfc_warning_internal (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3269 bool gfc_warning_now_at (location_t loc, int opt, const char *gmsgid, ...)
3270 ATTRIBUTE_GCC_GFC(3,4);
3271
3272 void gfc_clear_warning (void);
3273 void gfc_warning_check (void);
3274
3275 void gfc_error_opt (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3276 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
3277 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
3278 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
3279 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
3280 void gfc_clear_error (void);
3281 bool gfc_error_check (void);
3282 bool gfc_error_flag_test (void);
3283
3284 notification gfc_notification_std (int);
3285 bool gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3286
3287 /* A general purpose syntax error. */
3288 #define gfc_syntax_error(ST) \
3289 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
3290
3291 #include "pretty-print.h" /* For output_buffer. */
3292 struct gfc_error_buffer
3293 {
3294 bool flag;
3295 output_buffer buffer;
gfc_error_buffergfc_error_buffer3296 gfc_error_buffer(void) : flag(false), buffer() {}
3297 };
3298
3299 void gfc_push_error (gfc_error_buffer *);
3300 void gfc_pop_error (gfc_error_buffer *);
3301 void gfc_free_error (gfc_error_buffer *);
3302
3303 void gfc_get_errors (int *, int *);
3304 void gfc_errors_to_warnings (bool);
3305
3306 /* arith.c */
3307 void gfc_arith_init_1 (void);
3308 void gfc_arith_done_1 (void);
3309 arith gfc_check_integer_range (mpz_t p, int kind);
3310 bool gfc_check_character_range (gfc_char_t, int);
3311
3312 extern bool gfc_seen_div0;
3313
3314 /* trans-types.c */
3315 int gfc_validate_kind (bt, int, bool);
3316 int gfc_get_int_kind_from_width_isofortranenv (int size);
3317 int gfc_get_real_kind_from_width_isofortranenv (int size);
3318 tree gfc_get_union_type (gfc_symbol *);
3319 tree gfc_get_derived_type (gfc_symbol * derived, int codimen = 0);
3320 extern int gfc_index_integer_kind;
3321 extern int gfc_default_integer_kind;
3322 extern int gfc_max_integer_kind;
3323 extern int gfc_default_real_kind;
3324 extern int gfc_default_double_kind;
3325 extern int gfc_default_character_kind;
3326 extern int gfc_default_logical_kind;
3327 extern int gfc_default_complex_kind;
3328 extern int gfc_c_int_kind;
3329 extern int gfc_c_intptr_kind;
3330 extern int gfc_atomic_int_kind;
3331 extern int gfc_atomic_logical_kind;
3332 extern int gfc_intio_kind;
3333 extern int gfc_charlen_int_kind;
3334 extern int gfc_size_kind;
3335 extern int gfc_numeric_storage_size;
3336 extern int gfc_character_storage_size;
3337
3338 #define gfc_logical_4_kind 4
3339 #define gfc_integer_4_kind 4
3340 #define gfc_real_4_kind 4
3341
3342 /* symbol.c */
3343 void gfc_clear_new_implicit (void);
3344 bool gfc_add_new_implicit_range (int, int);
3345 bool gfc_merge_new_implicit (gfc_typespec *);
3346 void gfc_set_implicit_none (bool, bool, locus *);
3347 void gfc_check_function_type (gfc_namespace *);
3348 bool gfc_is_intrinsic_typename (const char *);
3349 bool gfc_check_conflict (symbol_attribute *, const char *, locus *);
3350
3351 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
3352 bool gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
3353
3354 void gfc_set_sym_referenced (gfc_symbol *);
3355
3356 bool gfc_add_attribute (symbol_attribute *, locus *);
3357 bool gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
3358 bool gfc_add_allocatable (symbol_attribute *, locus *);
3359 bool gfc_add_codimension (symbol_attribute *, const char *, locus *);
3360 bool gfc_add_contiguous (symbol_attribute *, const char *, locus *);
3361 bool gfc_add_dimension (symbol_attribute *, const char *, locus *);
3362 bool gfc_add_external (symbol_attribute *, locus *);
3363 bool gfc_add_intrinsic (symbol_attribute *, locus *);
3364 bool gfc_add_optional (symbol_attribute *, locus *);
3365 bool gfc_add_kind (symbol_attribute *, locus *);
3366 bool gfc_add_len (symbol_attribute *, locus *);
3367 bool gfc_add_pointer (symbol_attribute *, locus *);
3368 bool gfc_add_cray_pointer (symbol_attribute *, locus *);
3369 bool gfc_add_cray_pointee (symbol_attribute *, locus *);
3370 match gfc_mod_pointee_as (gfc_array_spec *);
3371 bool gfc_add_protected (symbol_attribute *, const char *, locus *);
3372 bool gfc_add_result (symbol_attribute *, const char *, locus *);
3373 bool gfc_add_automatic (symbol_attribute *, const char *, locus *);
3374 bool gfc_add_save (symbol_attribute *, save_state, const char *, locus *);
3375 bool gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
3376 bool gfc_add_omp_declare_target (symbol_attribute *, const char *, locus *);
3377 bool gfc_add_omp_declare_target_link (symbol_attribute *, const char *,
3378 locus *);
3379 bool gfc_add_target (symbol_attribute *, locus *);
3380 bool gfc_add_dummy (symbol_attribute *, const char *, locus *);
3381 bool gfc_add_generic (symbol_attribute *, const char *, locus *);
3382 bool gfc_add_in_common (symbol_attribute *, const char *, locus *);
3383 bool gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
3384 bool gfc_add_data (symbol_attribute *, const char *, locus *);
3385 bool gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
3386 bool gfc_add_sequence (symbol_attribute *, const char *, locus *);
3387 bool gfc_add_elemental (symbol_attribute *, locus *);
3388 bool gfc_add_pure (symbol_attribute *, locus *);
3389 bool gfc_add_recursive (symbol_attribute *, locus *);
3390 bool gfc_add_function (symbol_attribute *, const char *, locus *);
3391 bool gfc_add_subroutine (symbol_attribute *, const char *, locus *);
3392 bool gfc_add_volatile (symbol_attribute *, const char *, locus *);
3393 bool gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
3394 bool gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
3395 bool gfc_add_abstract (symbol_attribute* attr, locus* where);
3396
3397 bool gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
3398 bool gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
3399 bool gfc_add_extension (symbol_attribute *, locus *);
3400 bool gfc_add_value (symbol_attribute *, const char *, locus *);
3401 bool gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
3402 bool gfc_add_entry (symbol_attribute *, const char *, locus *);
3403 bool gfc_add_procedure (symbol_attribute *, procedure_type,
3404 const char *, locus *);
3405 bool gfc_add_intent (symbol_attribute *, sym_intent, locus *);
3406 bool gfc_add_explicit_interface (gfc_symbol *, ifsrc,
3407 gfc_formal_arglist *, locus *);
3408 bool gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
3409
3410 void gfc_clear_attr (symbol_attribute *);
3411 bool gfc_missing_attr (symbol_attribute *, locus *);
3412 bool gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
3413 int gfc_copy_dummy_sym (gfc_symbol **, gfc_symbol *, int);
3414 bool gfc_add_component (gfc_symbol *, const char *, gfc_component **);
3415 gfc_symbol *gfc_use_derived (gfc_symbol *);
3416 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool,
3417 gfc_ref **);
3418
3419 gfc_st_label *gfc_get_st_label (int);
3420 void gfc_free_st_label (gfc_st_label *);
3421 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
3422 bool gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
3423
3424 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
3425 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
3426 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
3427 void gfc_delete_symtree (gfc_symtree **, const char *);
3428 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
3429 gfc_user_op *gfc_get_uop (const char *);
3430 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
3431 void gfc_free_symbol (gfc_symbol *&);
3432 void gfc_release_symbol (gfc_symbol *&);
3433 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
3434 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *);
3435 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
3436 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
3437 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
3438 bool gfc_verify_c_interop (gfc_typespec *);
3439 bool gfc_verify_c_interop_param (gfc_symbol *);
3440 bool verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
3441 bool verify_bind_c_derived_type (gfc_symbol *);
3442 bool verify_com_block_vars_c_interop (gfc_common_head *);
3443 gfc_symtree *generate_isocbinding_symbol (const char *, iso_c_binding_symbol,
3444 const char *, gfc_symtree *, bool);
3445 void gfc_save_symbol_data (gfc_symbol *);
3446 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
3447 int gfc_get_ha_symbol (const char *, gfc_symbol **);
3448 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
3449
3450 void gfc_drop_last_undo_checkpoint (void);
3451 void gfc_restore_last_undo_checkpoint (void);
3452 void gfc_undo_symbols (void);
3453 void gfc_commit_symbols (void);
3454 void gfc_commit_symbol (gfc_symbol *);
3455 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
3456 void gfc_free_namespace (gfc_namespace *&);
3457
3458 void gfc_symbol_init_2 (void);
3459 void gfc_symbol_done_2 (void);
3460
3461 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
3462 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
3463 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
3464 void gfc_save_all (gfc_namespace *);
3465
3466 void gfc_enforce_clean_symbol_state (void);
3467
3468 gfc_gsymbol *gfc_get_gsymbol (const char *, bool bind_c);
3469 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
3470 gfc_gsymbol *gfc_find_case_gsymbol (gfc_gsymbol *, const char *);
3471 void gfc_traverse_gsymbol (gfc_gsymbol *, void (*)(gfc_gsymbol *, void *), void *);
3472
3473 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
3474 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
3475 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
3476 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
3477
3478 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *,
3479 gfc_actual_arglist *, bool copy_type = false);
3480
3481 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
3482
3483 bool gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
3484 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*);
3485
3486 bool gfc_is_associate_pointer (gfc_symbol*);
3487 gfc_symbol * gfc_find_dt_in_generic (gfc_symbol *);
3488 gfc_formal_arglist *gfc_sym_get_dummy_args (gfc_symbol *);
3489
3490 /* intrinsic.c -- true if working in an init-expr, false otherwise. */
3491 extern bool gfc_init_expr_flag;
3492
3493 /* Given a symbol that we have decided is intrinsic, mark it as such
3494 by placing it into a special module that is otherwise impossible to
3495 read or write. */
3496
3497 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
3498
3499 void gfc_intrinsic_init_1 (void);
3500 void gfc_intrinsic_done_1 (void);
3501
3502 char gfc_type_letter (bt, bool logical_equals_int = false);
3503 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
3504 gfc_symbol *gfc_get_intrinsic_function_symbol (gfc_expr *);
3505 gfc_symbol *gfc_find_intrinsic_symbol (gfc_expr *);
3506 bool gfc_convert_type (gfc_expr *, gfc_typespec *, int);
3507 bool gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int,
3508 bool array = false);
3509 bool gfc_convert_chartype (gfc_expr *, gfc_typespec *);
3510 int gfc_generic_intrinsic (const char *);
3511 int gfc_specific_intrinsic (const char *);
3512 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
3513 int gfc_intrinsic_actual_ok (const char *, const bool);
3514 gfc_intrinsic_sym *gfc_find_function (const char *);
3515 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
3516 gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id);
3517 gfc_intrinsic_sym *gfc_intrinsic_subroutine_by_id (gfc_isym_id);
3518 gfc_isym_id gfc_isym_id_by_intmod (intmod_id, int);
3519 gfc_isym_id gfc_isym_id_by_intmod_sym (gfc_symbol *);
3520
3521
3522 match gfc_intrinsic_func_interface (gfc_expr *, int);
3523 match gfc_intrinsic_sub_interface (gfc_code *, int);
3524
3525 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
3526 bool gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
3527 bool, locus);
3528
3529 /* match.c -- FIXME */
3530 void gfc_free_iterator (gfc_iterator *, int);
3531 void gfc_free_forall_iterator (gfc_forall_iterator *);
3532 void gfc_free_alloc_list (gfc_alloc *);
3533 void gfc_free_namelist (gfc_namelist *);
3534 void gfc_free_omp_namelist (gfc_omp_namelist *, bool);
3535 void gfc_free_equiv (gfc_equiv *);
3536 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *);
3537 void gfc_free_data (gfc_data *);
3538 void gfc_reject_data (gfc_namespace *);
3539 void gfc_free_case_list (gfc_case *);
3540
3541 /* matchexp.c -- FIXME too? */
3542 gfc_expr *gfc_get_parentheses (gfc_expr *);
3543
3544 /* openmp.c */
3545 struct gfc_omp_saved_state { void *ptrs[2]; int ints[1]; };
3546 bool gfc_omp_requires_add_clause (gfc_omp_requires_kind, const char *,
3547 locus *, const char *);
3548 void gfc_check_omp_requires (gfc_namespace *, int);
3549 void gfc_free_omp_clauses (gfc_omp_clauses *);
3550 void gfc_free_oacc_declare_clauses (struct gfc_oacc_declare *);
3551 void gfc_free_omp_declare_variant_list (gfc_omp_declare_variant *list);
3552 void gfc_free_omp_declare_simd (gfc_omp_declare_simd *);
3553 void gfc_free_omp_declare_simd_list (gfc_omp_declare_simd *);
3554 void gfc_free_omp_udr (gfc_omp_udr *);
3555 gfc_omp_udr *gfc_omp_udr_find (gfc_symtree *, gfc_typespec *);
3556 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
3557 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *, bool);
3558 void gfc_resolve_omp_local_vars (gfc_namespace *);
3559 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
3560 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
3561 void gfc_resolve_omp_declare_simd (gfc_namespace *);
3562 void gfc_resolve_omp_udrs (gfc_symtree *);
3563 void gfc_omp_save_and_clear_state (struct gfc_omp_saved_state *);
3564 void gfc_omp_restore_state (struct gfc_omp_saved_state *);
3565 void gfc_free_expr_list (gfc_expr_list *);
3566 void gfc_resolve_oacc_directive (gfc_code *, gfc_namespace *);
3567 void gfc_resolve_oacc_declare (gfc_namespace *);
3568 void gfc_resolve_oacc_blocks (gfc_code *, gfc_namespace *);
3569 void gfc_resolve_oacc_routines (gfc_namespace *);
3570
3571 /* expr.c */
3572 void gfc_free_actual_arglist (gfc_actual_arglist *);
3573 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
3574
3575 bool gfc_extract_int (gfc_expr *, int *, int = 0);
3576 bool gfc_extract_hwi (gfc_expr *, HOST_WIDE_INT *, int = 0);
3577
3578 bool is_CFI_desc (gfc_symbol *, gfc_expr *);
3579 bool is_subref_array (gfc_expr *);
3580 bool gfc_is_simply_contiguous (gfc_expr *, bool, bool);
3581 bool gfc_is_not_contiguous (gfc_expr *);
3582 bool gfc_check_init_expr (gfc_expr *);
3583
3584 gfc_expr *gfc_build_conversion (gfc_expr *);
3585 void gfc_free_ref_list (gfc_ref *);
3586 void gfc_type_convert_binary (gfc_expr *, int);
3587 bool gfc_is_constant_expr (gfc_expr *);
3588 bool gfc_simplify_expr (gfc_expr *, int);
3589 bool gfc_try_simplify_expr (gfc_expr *, int);
3590 int gfc_has_vector_index (gfc_expr *);
3591
3592 gfc_expr *gfc_get_expr (void);
3593 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
3594 gfc_expr *gfc_get_null_expr (locus *);
3595 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
3596 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
3597 gfc_expr *gfc_get_constant_expr (bt, int, locus *);
3598 gfc_expr *gfc_get_character_expr (int, locus *, const char *, gfc_charlen_t len);
3599 gfc_expr *gfc_get_int_expr (int, locus *, HOST_WIDE_INT);
3600 gfc_expr *gfc_get_logical_expr (int, locus *, bool);
3601 gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
3602
3603 void gfc_clear_shape (mpz_t *shape, int rank);
3604 void gfc_free_shape (mpz_t **shape, int rank);
3605 void gfc_free_expr (gfc_expr *);
3606 void gfc_replace_expr (gfc_expr *, gfc_expr *);
3607 mpz_t *gfc_copy_shape (mpz_t *, int);
3608 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
3609 gfc_expr *gfc_copy_expr (gfc_expr *);
3610 gfc_ref* gfc_copy_ref (gfc_ref*);
3611
3612 bool gfc_specification_expr (gfc_expr *);
3613
3614 int gfc_numeric_ts (gfc_typespec *);
3615 int gfc_kind_max (gfc_expr *, gfc_expr *);
3616
3617 bool gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
3618 bool gfc_check_assign (gfc_expr *, gfc_expr *, int, bool c = true);
3619 bool gfc_check_pointer_assign (gfc_expr *lvalue, gfc_expr *rvalue,
3620 bool suppres_type_test = false,
3621 bool is_init_expr = false);
3622 bool gfc_check_assign_symbol (gfc_symbol *, gfc_component *, gfc_expr *);
3623
3624 gfc_expr *gfc_build_default_init_expr (gfc_typespec *, locus *);
3625 void gfc_apply_init (gfc_typespec *, symbol_attribute *, gfc_expr *);
3626 bool gfc_has_default_initializer (gfc_symbol *);
3627 gfc_expr *gfc_default_initializer (gfc_typespec *);
3628 gfc_expr *gfc_generate_initializer (gfc_typespec *, bool);
3629 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
3630 void gfc_add_full_array_ref (gfc_expr *, gfc_array_spec *);
3631 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
3632
3633 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
3634
3635 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
3636 bool (*)(gfc_expr *, gfc_symbol *, int*),
3637 int);
3638 void gfc_expr_set_symbols_referenced (gfc_expr *);
3639 bool gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
3640 bool gfc_derived_parameter_expr (gfc_expr *);
3641 gfc_param_spec_type gfc_spec_list_type (gfc_actual_arglist *, gfc_symbol *);
3642 gfc_component * gfc_get_proc_ptr_comp (gfc_expr *);
3643 bool gfc_is_proc_ptr_comp (gfc_expr *);
3644 bool gfc_is_alloc_class_scalar_function (gfc_expr *);
3645 bool gfc_is_class_array_function (gfc_expr *);
3646
3647 bool gfc_ref_this_image (gfc_ref *ref);
3648 bool gfc_is_coindexed (gfc_expr *);
3649 bool gfc_is_coarray (gfc_expr *);
3650 int gfc_get_corank (gfc_expr *);
3651 bool gfc_has_ultimate_allocatable (gfc_expr *);
3652 bool gfc_has_ultimate_pointer (gfc_expr *);
3653 gfc_expr* gfc_find_team_co (gfc_expr *);
3654 gfc_expr* gfc_find_stat_co (gfc_expr *);
3655 gfc_expr* gfc_build_intrinsic_call (gfc_namespace *, gfc_isym_id, const char*,
3656 locus, unsigned, ...);
3657 bool gfc_check_vardef_context (gfc_expr*, bool, bool, bool, const char*);
3658
3659
3660 /* st.c */
3661 extern gfc_code new_st;
3662
3663 void gfc_clear_new_st (void);
3664 gfc_code *gfc_get_code (gfc_exec_op);
3665 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
3666 void gfc_free_statement (gfc_code *);
3667 void gfc_free_statements (gfc_code *);
3668 void gfc_free_association_list (gfc_association_list *);
3669
3670 /* resolve.c */
3671 void gfc_expression_rank (gfc_expr *);
3672 bool gfc_resolve_ref (gfc_expr *);
3673 bool gfc_resolve_expr (gfc_expr *);
3674 void gfc_resolve (gfc_namespace *);
3675 void gfc_resolve_code (gfc_code *, gfc_namespace *);
3676 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
3677 void gfc_resolve_formal_arglist (gfc_symbol *);
3678 int gfc_impure_variable (gfc_symbol *);
3679 int gfc_pure (gfc_symbol *);
3680 int gfc_implicit_pure (gfc_symbol *);
3681 void gfc_unset_implicit_pure (gfc_symbol *);
3682 int gfc_elemental (gfc_symbol *);
3683 bool gfc_resolve_iterator (gfc_iterator *, bool, bool);
3684 bool find_forall_index (gfc_expr *, gfc_symbol *, int);
3685 bool gfc_resolve_index (gfc_expr *, int);
3686 bool gfc_resolve_dim_arg (gfc_expr *);
3687 bool gfc_is_formal_arg (void);
3688 bool gfc_resolve_substring (gfc_ref *, bool *);
3689 void gfc_resolve_substring_charlen (gfc_expr *);
3690 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
3691 bool gfc_type_is_extensible (gfc_symbol *);
3692 bool gfc_resolve_intrinsic (gfc_symbol *, locus *);
3693 bool gfc_explicit_interface_required (gfc_symbol *, char *, int);
3694 extern int gfc_do_concurrent_flag;
3695 const char* gfc_lookup_function_fuzzy (const char *, gfc_symtree *);
3696 int gfc_pure_function (gfc_expr *e, const char **name);
3697 int gfc_implicit_pure_function (gfc_expr *e);
3698
3699
3700 /* array.c */
3701 gfc_iterator *gfc_copy_iterator (gfc_iterator *);
3702
3703 void gfc_free_array_spec (gfc_array_spec *);
3704 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
3705
3706 bool gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
3707 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
3708 bool gfc_resolve_array_spec (gfc_array_spec *, int);
3709
3710 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
3711
3712 void gfc_simplify_iterator_var (gfc_expr *);
3713 bool gfc_expand_constructor (gfc_expr *, bool);
3714 int gfc_constant_ac (gfc_expr *);
3715 int gfc_expanded_ac (gfc_expr *);
3716 bool gfc_resolve_character_array_constructor (gfc_expr *);
3717 bool gfc_resolve_array_constructor (gfc_expr *);
3718 bool gfc_check_constructor_type (gfc_expr *);
3719 bool gfc_check_iter_variable (gfc_expr *);
3720 bool gfc_check_constructor (gfc_expr *, bool (*)(gfc_expr *));
3721 bool gfc_array_size (gfc_expr *, mpz_t *);
3722 bool gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
3723 bool gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
3724 gfc_array_ref *gfc_find_array_ref (gfc_expr *, bool a = false);
3725 tree gfc_conv_array_initializer (tree type, gfc_expr *);
3726 bool spec_size (gfc_array_spec *, mpz_t *);
3727 bool spec_dimen_size (gfc_array_spec *, int, mpz_t *);
3728 bool gfc_is_compile_time_shape (gfc_array_spec *);
3729
3730 bool gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *);
3731
3732 /* interface.c -- FIXME: some of these should be in symbol.c */
3733 void gfc_free_interface (gfc_interface *);
3734 bool gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
3735 bool gfc_compare_types (gfc_typespec *, gfc_typespec *);
3736 bool gfc_check_dummy_characteristics (gfc_symbol *, gfc_symbol *,
3737 bool, char *, int);
3738 bool gfc_check_result_characteristics (gfc_symbol *, gfc_symbol *,
3739 char *, int);
3740 bool gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
3741 char *, int, const char *, const char *,
3742 bool *bad_result_characteristics = NULL);
3743 void gfc_check_interfaces (gfc_namespace *);
3744 bool gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
3745 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
3746 gfc_symbol *gfc_search_interface (gfc_interface *, int,
3747 gfc_actual_arglist **);
3748 match gfc_extend_expr (gfc_expr *);
3749 void gfc_free_formal_arglist (gfc_formal_arglist *);
3750 bool gfc_extend_assign (gfc_code *, gfc_namespace *);
3751 bool gfc_check_new_interface (gfc_interface *, gfc_symbol *, locus);
3752 bool gfc_add_interface (gfc_symbol *);
3753 gfc_interface *gfc_current_interface_head (void);
3754 void gfc_set_current_interface_head (gfc_interface *);
3755 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
3756 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
3757 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
3758 bool gfc_has_vector_subscript (gfc_expr*);
3759 gfc_intrinsic_op gfc_equivalent_op (gfc_intrinsic_op);
3760 bool gfc_check_typebound_override (gfc_symtree*, gfc_symtree*);
3761 void gfc_check_dtio_interfaces (gfc_symbol*);
3762 gfc_symtree* gfc_find_typebound_dtio_proc (gfc_symbol *, bool, bool);
3763 gfc_symbol* gfc_find_specific_dtio_proc (gfc_symbol*, bool, bool);
3764 void gfc_get_formal_from_actual_arglist (gfc_symbol *, gfc_actual_arglist *);
3765 bool gfc_compare_actual_formal (gfc_actual_arglist **, gfc_formal_arglist *,
3766 int, int, bool, locus *);
3767
3768
3769 /* io.c */
3770 extern gfc_st_label format_asterisk;
3771
3772 void gfc_free_open (gfc_open *);
3773 bool gfc_resolve_open (gfc_open *, locus *);
3774 void gfc_free_close (gfc_close *);
3775 bool gfc_resolve_close (gfc_close *, locus *);
3776 void gfc_free_filepos (gfc_filepos *);
3777 bool gfc_resolve_filepos (gfc_filepos *, locus *);
3778 void gfc_free_inquire (gfc_inquire *);
3779 bool gfc_resolve_inquire (gfc_inquire *);
3780 void gfc_free_dt (gfc_dt *);
3781 bool gfc_resolve_dt (gfc_code *, gfc_dt *, locus *);
3782 void gfc_free_wait (gfc_wait *);
3783 bool gfc_resolve_wait (gfc_wait *);
3784
3785 /* module.c */
3786 void gfc_module_init_2 (void);
3787 void gfc_module_done_2 (void);
3788 void gfc_dump_module (const char *, int);
3789 bool gfc_check_symbol_access (gfc_symbol *);
3790 void gfc_free_use_stmts (gfc_use_list *);
3791 const char *gfc_dt_lower_string (const char *);
3792 const char *gfc_dt_upper_string (const char *);
3793
3794 /* primary.c */
3795 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
3796 symbol_attribute gfc_expr_attr (gfc_expr *);
3797 symbol_attribute gfc_caf_attr (gfc_expr *, bool i = false, bool *r = NULL);
3798 match gfc_match_rvalue (gfc_expr **);
3799 match gfc_match_varspec (gfc_expr*, int, bool, bool);
3800 int gfc_check_digit (char, int);
3801 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
3802 bool gfc_convert_to_structure_constructor (gfc_expr *, gfc_symbol *,
3803 gfc_expr **,
3804 gfc_actual_arglist **, bool);
3805
3806 /* trans.c */
3807 void gfc_generate_code (gfc_namespace *);
3808 void gfc_generate_module_code (gfc_namespace *);
3809
3810 /* trans-intrinsic.c */
3811 bool gfc_inline_intrinsic_function_p (gfc_expr *);
3812
3813 /* bbt.c */
3814 typedef int (*compare_fn) (void *, void *);
3815 void gfc_insert_bbt (void *, void *, compare_fn);
3816 void gfc_delete_bbt (void *, void *, compare_fn);
3817
3818 /* dump-parse-tree.c */
3819 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
3820 void gfc_dump_c_prototypes (gfc_namespace *, FILE *);
3821 void gfc_dump_external_c_prototypes (FILE *);
3822 void gfc_dump_global_symbols (FILE *);
3823 void debug (gfc_symbol *);
3824 void debug (gfc_expr *);
3825
3826 /* parse.c */
3827 bool gfc_parse_file (void);
3828 void gfc_global_used (gfc_gsymbol *, locus *);
3829 gfc_namespace* gfc_build_block_ns (gfc_namespace *);
3830
3831 /* dependency.c */
3832 int gfc_dep_compare_functions (gfc_expr *, gfc_expr *, bool);
3833 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
3834 bool gfc_dep_difference (gfc_expr *, gfc_expr *, mpz_t *);
3835
3836 /* check.c */
3837 bool gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
3838 bool gfc_calculate_transfer_sizes (gfc_expr*, gfc_expr*, gfc_expr*,
3839 size_t*, size_t*, size_t*);
3840 bool gfc_boz2int (gfc_expr *, int);
3841 bool gfc_boz2real (gfc_expr *, int);
3842 bool gfc_invalid_boz (const char *, locus *);
3843 bool gfc_invalid_null_arg (gfc_expr *);
3844
3845
3846 /* class.c */
3847 void gfc_fix_class_refs (gfc_expr *e);
3848 void gfc_add_component_ref (gfc_expr *, const char *);
3849 void gfc_add_class_array_ref (gfc_expr *);
3850 #define gfc_add_data_component(e) gfc_add_component_ref(e,"_data")
3851 #define gfc_add_vptr_component(e) gfc_add_component_ref(e,"_vptr")
3852 #define gfc_add_len_component(e) gfc_add_component_ref(e,"_len")
3853 #define gfc_add_hash_component(e) gfc_add_component_ref(e,"_hash")
3854 #define gfc_add_size_component(e) gfc_add_component_ref(e,"_size")
3855 #define gfc_add_def_init_component(e) gfc_add_component_ref(e,"_def_init")
3856 #define gfc_add_final_component(e) gfc_add_component_ref(e,"_final")
3857 bool gfc_is_class_array_ref (gfc_expr *, bool *);
3858 bool gfc_is_class_scalar_expr (gfc_expr *);
3859 bool gfc_is_class_container_ref (gfc_expr *e);
3860 gfc_expr *gfc_class_initializer (gfc_typespec *, gfc_expr *);
3861 unsigned int gfc_hash_value (gfc_symbol *);
3862 gfc_expr *gfc_get_len_component (gfc_expr *e, int);
3863 bool gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
3864 gfc_array_spec **);
3865 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
3866 gfc_symbol *gfc_find_vtab (gfc_typespec *);
3867 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, bool*,
3868 const char*, bool, locus*);
3869 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, bool*,
3870 const char*, bool, locus*);
3871 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, bool*,
3872 gfc_intrinsic_op, bool,
3873 locus*);
3874 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
3875 bool gfc_is_finalizable (gfc_symbol *, gfc_expr **);
3876
3877 #define CLASS_DATA(sym) sym->ts.u.derived->components
3878 #define UNLIMITED_POLY(sym) \
3879 (sym != NULL && sym->ts.type == BT_CLASS \
3880 && CLASS_DATA (sym) \
3881 && CLASS_DATA (sym)->ts.u.derived \
3882 && CLASS_DATA (sym)->ts.u.derived->attr.unlimited_polymorphic)
3883 #define IS_CLASS_ARRAY(sym) \
3884 (sym->ts.type == BT_CLASS \
3885 && CLASS_DATA (sym) \
3886 && CLASS_DATA (sym)->attr.dimension \
3887 && !CLASS_DATA (sym)->attr.class_pointer)
3888
3889 /* frontend-passes.c */
3890
3891 void gfc_run_passes (gfc_namespace *);
3892
3893 typedef int (*walk_code_fn_t) (gfc_code **, int *, void *);
3894 typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *);
3895
3896 int gfc_dummy_code_callback (gfc_code **, int *, void *);
3897 int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *);
3898 int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *);
3899 bool gfc_has_dimen_vector_ref (gfc_expr *e);
3900 void gfc_check_externals (gfc_namespace *);
3901 bool gfc_fix_implicit_pure (gfc_namespace *);
3902
3903 /* simplify.c */
3904
3905 void gfc_convert_mpz_to_signed (mpz_t, int);
3906 gfc_expr *gfc_simplify_ieee_functions (gfc_expr *);
3907 bool gfc_is_size_zero_array (gfc_expr *);
3908
3909 /* trans-array.c */
3910
3911 bool gfc_is_reallocatable_lhs (gfc_expr *);
3912
3913 /* trans-decl.c */
3914
3915 void finish_oacc_declare (gfc_namespace *, gfc_symbol *, bool);
3916 void gfc_adjust_builtins (void);
3917
3918 #endif /* GCC_GFORTRAN_H */
3919