1 /* gfortran header file
2 Copyright (C) 2000-2023 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.cc. */
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. ARITH_NOT_REDUCED is used to keep track of expressions
226 that were not reduced by the arithmetic evaluation code. */
227 enum arith
228 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
229 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT,
230 ARITH_WRONGCONCAT, ARITH_INVALID_TYPE, ARITH_NOT_REDUCED
231 };
232
233 /* Statements. */
234 enum gfc_statement
235 {
236 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE,
237 ST_BACKSPACE, ST_BLOCK, ST_BLOCK_DATA,
238 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
239 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
240 ST_ELSEWHERE, ST_END_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA,
241 ST_ENDDO, ST_IMPLIED_ENDDO, ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL,
242 ST_END_FUNCTION, ST_ENDIF, ST_END_INTERFACE, ST_END_MODULE, ST_END_SUBMODULE,
243 ST_END_PROGRAM, ST_END_SELECT, ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE,
244 ST_ENTRY, ST_EQUIVALENCE, ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK,
245 ST_FORMAT, ST_FUNCTION, ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE,
246 ST_IMPORT, ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY,
247 ST_SYNC_IMAGES, ST_PARAMETER, ST_MODULE, ST_SUBMODULE, ST_MODULE_PROC,
248 ST_NAMELIST, ST_NULLIFY, ST_OPEN, ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC,
249 ST_READ, ST_RETURN, ST_REWIND, ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE,
250 ST_WHERE_BLOCK, ST_WHERE, ST_WAIT, ST_WRITE, ST_ASSIGNMENT,
251 ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE, ST_SIMPLE_IF,
252 ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT, ST_ENUM,
253 ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS,
254 ST_SELECT_RANK, ST_RANK, ST_STRUCTURE_DECL, ST_END_STRUCTURE,
255 ST_UNION, ST_END_UNION, ST_MAP, ST_END_MAP,
256 ST_OACC_PARALLEL_LOOP, ST_OACC_END_PARALLEL_LOOP, ST_OACC_PARALLEL,
257 ST_OACC_END_PARALLEL, ST_OACC_KERNELS, ST_OACC_END_KERNELS, ST_OACC_DATA,
258 ST_OACC_END_DATA, ST_OACC_HOST_DATA, ST_OACC_END_HOST_DATA, ST_OACC_LOOP,
259 ST_OACC_END_LOOP, ST_OACC_DECLARE, ST_OACC_UPDATE, ST_OACC_WAIT,
260 ST_OACC_CACHE, ST_OACC_KERNELS_LOOP, ST_OACC_END_KERNELS_LOOP,
261 ST_OACC_SERIAL_LOOP, ST_OACC_END_SERIAL_LOOP, ST_OACC_SERIAL,
262 ST_OACC_END_SERIAL, ST_OACC_ENTER_DATA, ST_OACC_EXIT_DATA, ST_OACC_ROUTINE,
263 ST_OACC_ATOMIC, ST_OACC_END_ATOMIC,
264 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_ATOMIC,
265 ST_OMP_END_CRITICAL, ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED,
266 ST_OMP_END_PARALLEL, ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
267 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
268 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
269 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
270 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
271 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
272 ST_OMP_TASKWAIT, ST_OMP_TASKYIELD, ST_OMP_CANCEL, ST_OMP_CANCELLATION_POINT,
273 ST_OMP_TASKGROUP, ST_OMP_END_TASKGROUP, ST_OMP_SIMD, ST_OMP_END_SIMD,
274 ST_OMP_DO_SIMD, ST_OMP_END_DO_SIMD, ST_OMP_PARALLEL_DO_SIMD,
275 ST_OMP_END_PARALLEL_DO_SIMD, ST_OMP_DECLARE_SIMD, ST_OMP_DECLARE_REDUCTION,
276 ST_OMP_TARGET, ST_OMP_END_TARGET, ST_OMP_TARGET_DATA, ST_OMP_END_TARGET_DATA,
277 ST_OMP_TARGET_UPDATE, ST_OMP_DECLARE_TARGET, ST_OMP_DECLARE_VARIANT,
278 ST_OMP_TEAMS, ST_OMP_END_TEAMS, ST_OMP_DISTRIBUTE, ST_OMP_END_DISTRIBUTE,
279 ST_OMP_DISTRIBUTE_SIMD, ST_OMP_END_DISTRIBUTE_SIMD,
280 ST_OMP_DISTRIBUTE_PARALLEL_DO, ST_OMP_END_DISTRIBUTE_PARALLEL_DO,
281 ST_OMP_DISTRIBUTE_PARALLEL_DO_SIMD, ST_OMP_END_DISTRIBUTE_PARALLEL_DO_SIMD,
282 ST_OMP_TARGET_TEAMS, ST_OMP_END_TARGET_TEAMS, ST_OMP_TEAMS_DISTRIBUTE,
283 ST_OMP_END_TEAMS_DISTRIBUTE, ST_OMP_TEAMS_DISTRIBUTE_SIMD,
284 ST_OMP_END_TEAMS_DISTRIBUTE_SIMD, ST_OMP_TARGET_TEAMS_DISTRIBUTE,
285 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE, ST_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD,
286 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_SIMD, ST_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO,
287 ST_OMP_END_TEAMS_DISTRIBUTE_PARALLEL_DO,
288 ST_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
289 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
290 ST_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
291 ST_OMP_END_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
292 ST_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
293 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
294 ST_OMP_TARGET_PARALLEL, ST_OMP_END_TARGET_PARALLEL,
295 ST_OMP_TARGET_PARALLEL_DO, ST_OMP_END_TARGET_PARALLEL_DO,
296 ST_OMP_TARGET_PARALLEL_DO_SIMD, ST_OMP_END_TARGET_PARALLEL_DO_SIMD,
297 ST_OMP_TARGET_ENTER_DATA, ST_OMP_TARGET_EXIT_DATA,
298 ST_OMP_TARGET_SIMD, ST_OMP_END_TARGET_SIMD,
299 ST_OMP_TASKLOOP, ST_OMP_END_TASKLOOP, ST_OMP_SCAN, ST_OMP_DEPOBJ,
300 ST_OMP_TASKLOOP_SIMD, ST_OMP_END_TASKLOOP_SIMD, ST_OMP_ORDERED_DEPEND,
301 ST_OMP_REQUIRES, ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL,
302 ST_GET_FCN_CHARACTERISTICS, ST_LOCK, ST_UNLOCK, ST_EVENT_POST,
303 ST_EVENT_WAIT, ST_FAIL_IMAGE, ST_FORM_TEAM, ST_CHANGE_TEAM,
304 ST_END_TEAM, ST_SYNC_TEAM, ST_OMP_PARALLEL_MASTER,
305 ST_OMP_END_PARALLEL_MASTER, ST_OMP_PARALLEL_MASTER_TASKLOOP,
306 ST_OMP_END_PARALLEL_MASTER_TASKLOOP, ST_OMP_PARALLEL_MASTER_TASKLOOP_SIMD,
307 ST_OMP_END_PARALLEL_MASTER_TASKLOOP_SIMD, ST_OMP_MASTER_TASKLOOP,
308 ST_OMP_END_MASTER_TASKLOOP, ST_OMP_MASTER_TASKLOOP_SIMD,
309 ST_OMP_END_MASTER_TASKLOOP_SIMD, ST_OMP_LOOP, ST_OMP_END_LOOP,
310 ST_OMP_PARALLEL_LOOP, ST_OMP_END_PARALLEL_LOOP, ST_OMP_TEAMS_LOOP,
311 ST_OMP_END_TEAMS_LOOP, ST_OMP_TARGET_PARALLEL_LOOP,
312 ST_OMP_END_TARGET_PARALLEL_LOOP, ST_OMP_TARGET_TEAMS_LOOP,
313 ST_OMP_END_TARGET_TEAMS_LOOP, ST_OMP_MASKED, ST_OMP_END_MASKED,
314 ST_OMP_PARALLEL_MASKED, ST_OMP_END_PARALLEL_MASKED,
315 ST_OMP_PARALLEL_MASKED_TASKLOOP, ST_OMP_END_PARALLEL_MASKED_TASKLOOP,
316 ST_OMP_PARALLEL_MASKED_TASKLOOP_SIMD,
317 ST_OMP_END_PARALLEL_MASKED_TASKLOOP_SIMD, ST_OMP_MASKED_TASKLOOP,
318 ST_OMP_END_MASKED_TASKLOOP, ST_OMP_MASKED_TASKLOOP_SIMD,
319 ST_OMP_END_MASKED_TASKLOOP_SIMD, ST_OMP_SCOPE, ST_OMP_END_SCOPE,
320 ST_OMP_ERROR, ST_OMP_ASSUME, ST_OMP_END_ASSUME, ST_OMP_ASSUMES,
321 /* Note: gfc_match_omp_nothing returns ST_NONE. */
322 ST_OMP_NOTHING, ST_NONE
323 };
324
325 /* Types of interfaces that we can have. Assignment interfaces are
326 considered to be intrinsic operators. */
327 enum interface_type
328 {
329 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
330 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT,
331 INTERFACE_DTIO
332 };
333
334 /* Symbol flavors: these are all mutually exclusive.
335 12 elements = 4 bits. */
336 enum sym_flavor
337 {
338 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
339 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
340 FL_UNION, FL_STRUCT, FL_VOID
341 };
342
343 /* Procedure types. 7 elements = 3 bits. */
344 enum procedure_type
345 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
346 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
347 };
348
349 /* Intent types. Note that these values are also used in another enum in
350 decl.cc (match_attr_spec). */
351 enum sym_intent
352 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
353 };
354
355 /* Access types. */
356 enum gfc_access
357 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
358 };
359
360 /* Flags to keep track of where an interface came from.
361 3 elements = 2 bits. */
362 enum ifsrc
363 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */
364 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */
365 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement
366 with explicit interface. */
367 };
368
369 /* Whether a SAVE attribute was set explicitly or implicitly. */
370 enum save_state
371 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
372 };
373
374 /* OpenACC 'routine' directive's level of parallelism. */
375 enum oacc_routine_lop
376 { OACC_ROUTINE_LOP_NONE = 0,
377 OACC_ROUTINE_LOP_GANG,
378 OACC_ROUTINE_LOP_WORKER,
379 OACC_ROUTINE_LOP_VECTOR,
380 OACC_ROUTINE_LOP_SEQ,
381 OACC_ROUTINE_LOP_ERROR
382 };
383
384 /* Strings for all symbol attributes. We use these for dumping the
385 parse tree, in error messages, and also when reading and writing
386 modules. In symbol.cc. */
387 extern const mstring flavors[];
388 extern const mstring procedures[];
389 extern const mstring intents[];
390 extern const mstring access_types[];
391 extern const mstring ifsrc_types[];
392 extern const mstring save_status[];
393
394 /* Strings for DTIO procedure names. In symbol.cc. */
395 extern const mstring dtio_procs[];
396
397 enum dtio_codes
398 { DTIO_RF = 0, DTIO_WF, DTIO_RUF, DTIO_WUF };
399
400 /* Enumeration of all the generic intrinsic functions. Used by the
401 backend for identification of a function. */
402
403 enum gfc_isym_id
404 {
405 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
406 the backend (e.g. KIND). */
407 GFC_ISYM_NONE = 0,
408 GFC_ISYM_ABORT,
409 GFC_ISYM_ABS,
410 GFC_ISYM_ACCESS,
411 GFC_ISYM_ACHAR,
412 GFC_ISYM_ACOS,
413 GFC_ISYM_ACOSD,
414 GFC_ISYM_ACOSH,
415 GFC_ISYM_ADJUSTL,
416 GFC_ISYM_ADJUSTR,
417 GFC_ISYM_AIMAG,
418 GFC_ISYM_AINT,
419 GFC_ISYM_ALARM,
420 GFC_ISYM_ALL,
421 GFC_ISYM_ALLOCATED,
422 GFC_ISYM_AND,
423 GFC_ISYM_ANINT,
424 GFC_ISYM_ANY,
425 GFC_ISYM_ASIN,
426 GFC_ISYM_ASIND,
427 GFC_ISYM_ASINH,
428 GFC_ISYM_ASSOCIATED,
429 GFC_ISYM_ATAN,
430 GFC_ISYM_ATAN2,
431 GFC_ISYM_ATAN2D,
432 GFC_ISYM_ATAND,
433 GFC_ISYM_ATANH,
434 GFC_ISYM_ATOMIC_ADD,
435 GFC_ISYM_ATOMIC_AND,
436 GFC_ISYM_ATOMIC_CAS,
437 GFC_ISYM_ATOMIC_DEF,
438 GFC_ISYM_ATOMIC_FETCH_ADD,
439 GFC_ISYM_ATOMIC_FETCH_AND,
440 GFC_ISYM_ATOMIC_FETCH_OR,
441 GFC_ISYM_ATOMIC_FETCH_XOR,
442 GFC_ISYM_ATOMIC_OR,
443 GFC_ISYM_ATOMIC_REF,
444 GFC_ISYM_ATOMIC_XOR,
445 GFC_ISYM_BGE,
446 GFC_ISYM_BGT,
447 GFC_ISYM_BIT_SIZE,
448 GFC_ISYM_BLE,
449 GFC_ISYM_BLT,
450 GFC_ISYM_BTEST,
451 GFC_ISYM_CAF_GET,
452 GFC_ISYM_CAF_SEND,
453 GFC_ISYM_CEILING,
454 GFC_ISYM_CHAR,
455 GFC_ISYM_CHDIR,
456 GFC_ISYM_CHMOD,
457 GFC_ISYM_CMPLX,
458 GFC_ISYM_CO_BROADCAST,
459 GFC_ISYM_CO_MAX,
460 GFC_ISYM_CO_MIN,
461 GFC_ISYM_CO_REDUCE,
462 GFC_ISYM_CO_SUM,
463 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
464 GFC_ISYM_COMPILER_OPTIONS,
465 GFC_ISYM_COMPILER_VERSION,
466 GFC_ISYM_COMPLEX,
467 GFC_ISYM_CONJG,
468 GFC_ISYM_CONVERSION,
469 GFC_ISYM_COS,
470 GFC_ISYM_COSD,
471 GFC_ISYM_COSH,
472 GFC_ISYM_COTAN,
473 GFC_ISYM_COTAND,
474 GFC_ISYM_COUNT,
475 GFC_ISYM_CPU_TIME,
476 GFC_ISYM_CSHIFT,
477 GFC_ISYM_CTIME,
478 GFC_ISYM_C_ASSOCIATED,
479 GFC_ISYM_C_F_POINTER,
480 GFC_ISYM_C_F_PROCPOINTER,
481 GFC_ISYM_C_FUNLOC,
482 GFC_ISYM_C_LOC,
483 GFC_ISYM_C_SIZEOF,
484 GFC_ISYM_DATE_AND_TIME,
485 GFC_ISYM_DBLE,
486 GFC_ISYM_DFLOAT,
487 GFC_ISYM_DIGITS,
488 GFC_ISYM_DIM,
489 GFC_ISYM_DOT_PRODUCT,
490 GFC_ISYM_DPROD,
491 GFC_ISYM_DSHIFTL,
492 GFC_ISYM_DSHIFTR,
493 GFC_ISYM_DTIME,
494 GFC_ISYM_EOSHIFT,
495 GFC_ISYM_EPSILON,
496 GFC_ISYM_ERF,
497 GFC_ISYM_ERFC,
498 GFC_ISYM_ERFC_SCALED,
499 GFC_ISYM_ETIME,
500 GFC_ISYM_EVENT_QUERY,
501 GFC_ISYM_EXECUTE_COMMAND_LINE,
502 GFC_ISYM_EXIT,
503 GFC_ISYM_EXP,
504 GFC_ISYM_EXPONENT,
505 GFC_ISYM_EXTENDS_TYPE_OF,
506 GFC_ISYM_FAILED_IMAGES,
507 GFC_ISYM_FDATE,
508 GFC_ISYM_FE_RUNTIME_ERROR,
509 GFC_ISYM_FGET,
510 GFC_ISYM_FGETC,
511 GFC_ISYM_FINDLOC,
512 GFC_ISYM_FLOAT,
513 GFC_ISYM_FLOOR,
514 GFC_ISYM_FLUSH,
515 GFC_ISYM_FNUM,
516 GFC_ISYM_FPUT,
517 GFC_ISYM_FPUTC,
518 GFC_ISYM_FRACTION,
519 GFC_ISYM_FREE,
520 GFC_ISYM_FSEEK,
521 GFC_ISYM_FSTAT,
522 GFC_ISYM_FTELL,
523 GFC_ISYM_TGAMMA,
524 GFC_ISYM_GERROR,
525 GFC_ISYM_GETARG,
526 GFC_ISYM_GET_COMMAND,
527 GFC_ISYM_GET_COMMAND_ARGUMENT,
528 GFC_ISYM_GETCWD,
529 GFC_ISYM_GETENV,
530 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
531 GFC_ISYM_GETGID,
532 GFC_ISYM_GETLOG,
533 GFC_ISYM_GETPID,
534 GFC_ISYM_GET_TEAM,
535 GFC_ISYM_GETUID,
536 GFC_ISYM_GMTIME,
537 GFC_ISYM_HOSTNM,
538 GFC_ISYM_HUGE,
539 GFC_ISYM_HYPOT,
540 GFC_ISYM_IACHAR,
541 GFC_ISYM_IALL,
542 GFC_ISYM_IAND,
543 GFC_ISYM_IANY,
544 GFC_ISYM_IARGC,
545 GFC_ISYM_IBCLR,
546 GFC_ISYM_IBITS,
547 GFC_ISYM_IBSET,
548 GFC_ISYM_ICHAR,
549 GFC_ISYM_IDATE,
550 GFC_ISYM_IEOR,
551 GFC_ISYM_IERRNO,
552 GFC_ISYM_IMAGE_INDEX,
553 GFC_ISYM_IMAGE_STATUS,
554 GFC_ISYM_INDEX,
555 GFC_ISYM_INT,
556 GFC_ISYM_INT2,
557 GFC_ISYM_INT8,
558 GFC_ISYM_IOR,
559 GFC_ISYM_IPARITY,
560 GFC_ISYM_IRAND,
561 GFC_ISYM_ISATTY,
562 GFC_ISYM_IS_CONTIGUOUS,
563 GFC_ISYM_IS_IOSTAT_END,
564 GFC_ISYM_IS_IOSTAT_EOR,
565 GFC_ISYM_ISNAN,
566 GFC_ISYM_ISHFT,
567 GFC_ISYM_ISHFTC,
568 GFC_ISYM_ITIME,
569 GFC_ISYM_J0,
570 GFC_ISYM_J1,
571 GFC_ISYM_JN,
572 GFC_ISYM_JN2,
573 GFC_ISYM_KILL,
574 GFC_ISYM_KIND,
575 GFC_ISYM_LBOUND,
576 GFC_ISYM_LCOBOUND,
577 GFC_ISYM_LEADZ,
578 GFC_ISYM_LEN,
579 GFC_ISYM_LEN_TRIM,
580 GFC_ISYM_LGAMMA,
581 GFC_ISYM_LGE,
582 GFC_ISYM_LGT,
583 GFC_ISYM_LINK,
584 GFC_ISYM_LLE,
585 GFC_ISYM_LLT,
586 GFC_ISYM_LOC,
587 GFC_ISYM_LOG,
588 GFC_ISYM_LOG10,
589 GFC_ISYM_LOGICAL,
590 GFC_ISYM_LONG,
591 GFC_ISYM_LSHIFT,
592 GFC_ISYM_LSTAT,
593 GFC_ISYM_LTIME,
594 GFC_ISYM_MALLOC,
595 GFC_ISYM_MASKL,
596 GFC_ISYM_MASKR,
597 GFC_ISYM_MATMUL,
598 GFC_ISYM_MAX,
599 GFC_ISYM_MAXEXPONENT,
600 GFC_ISYM_MAXLOC,
601 GFC_ISYM_MAXVAL,
602 GFC_ISYM_MCLOCK,
603 GFC_ISYM_MCLOCK8,
604 GFC_ISYM_MERGE,
605 GFC_ISYM_MERGE_BITS,
606 GFC_ISYM_MIN,
607 GFC_ISYM_MINEXPONENT,
608 GFC_ISYM_MINLOC,
609 GFC_ISYM_MINVAL,
610 GFC_ISYM_MOD,
611 GFC_ISYM_MODULO,
612 GFC_ISYM_MOVE_ALLOC,
613 GFC_ISYM_MVBITS,
614 GFC_ISYM_NEAREST,
615 GFC_ISYM_NEW_LINE,
616 GFC_ISYM_NINT,
617 GFC_ISYM_NORM2,
618 GFC_ISYM_NOT,
619 GFC_ISYM_NULL,
620 GFC_ISYM_NUM_IMAGES,
621 GFC_ISYM_OR,
622 GFC_ISYM_PACK,
623 GFC_ISYM_PARITY,
624 GFC_ISYM_PERROR,
625 GFC_ISYM_POPCNT,
626 GFC_ISYM_POPPAR,
627 GFC_ISYM_PRECISION,
628 GFC_ISYM_PRESENT,
629 GFC_ISYM_PRODUCT,
630 GFC_ISYM_RADIX,
631 GFC_ISYM_RAND,
632 GFC_ISYM_RANDOM_INIT,
633 GFC_ISYM_RANDOM_NUMBER,
634 GFC_ISYM_RANDOM_SEED,
635 GFC_ISYM_RANGE,
636 GFC_ISYM_RANK,
637 GFC_ISYM_REAL,
638 GFC_ISYM_REALPART,
639 GFC_ISYM_RENAME,
640 GFC_ISYM_REPEAT,
641 GFC_ISYM_RESHAPE,
642 GFC_ISYM_RRSPACING,
643 GFC_ISYM_RSHIFT,
644 GFC_ISYM_SAME_TYPE_AS,
645 GFC_ISYM_SC_KIND,
646 GFC_ISYM_SCALE,
647 GFC_ISYM_SCAN,
648 GFC_ISYM_SECNDS,
649 GFC_ISYM_SECOND,
650 GFC_ISYM_SET_EXPONENT,
651 GFC_ISYM_SHAPE,
652 GFC_ISYM_SHIFTA,
653 GFC_ISYM_SHIFTL,
654 GFC_ISYM_SHIFTR,
655 GFC_ISYM_BACKTRACE,
656 GFC_ISYM_SIGN,
657 GFC_ISYM_SIGNAL,
658 GFC_ISYM_SI_KIND,
659 GFC_ISYM_SIN,
660 GFC_ISYM_SIND,
661 GFC_ISYM_SINH,
662 GFC_ISYM_SIZE,
663 GFC_ISYM_SLEEP,
664 GFC_ISYM_SIZEOF,
665 GFC_ISYM_SNGL,
666 GFC_ISYM_SPACING,
667 GFC_ISYM_SPREAD,
668 GFC_ISYM_SQRT,
669 GFC_ISYM_SRAND,
670 GFC_ISYM_SR_KIND,
671 GFC_ISYM_STAT,
672 GFC_ISYM_STOPPED_IMAGES,
673 GFC_ISYM_STORAGE_SIZE,
674 GFC_ISYM_STRIDE,
675 GFC_ISYM_SUM,
676 GFC_ISYM_SYMLINK,
677 GFC_ISYM_SYMLNK,
678 GFC_ISYM_SYSTEM,
679 GFC_ISYM_SYSTEM_CLOCK,
680 GFC_ISYM_TAN,
681 GFC_ISYM_TAND,
682 GFC_ISYM_TANH,
683 GFC_ISYM_TEAM_NUMBER,
684 GFC_ISYM_THIS_IMAGE,
685 GFC_ISYM_TIME,
686 GFC_ISYM_TIME8,
687 GFC_ISYM_TINY,
688 GFC_ISYM_TRAILZ,
689 GFC_ISYM_TRANSFER,
690 GFC_ISYM_TRANSPOSE,
691 GFC_ISYM_TRIM,
692 GFC_ISYM_TTYNAM,
693 GFC_ISYM_UBOUND,
694 GFC_ISYM_UCOBOUND,
695 GFC_ISYM_UMASK,
696 GFC_ISYM_UNLINK,
697 GFC_ISYM_UNPACK,
698 GFC_ISYM_VERIFY,
699 GFC_ISYM_XOR,
700 GFC_ISYM_Y0,
701 GFC_ISYM_Y1,
702 GFC_ISYM_YN,
703 GFC_ISYM_YN2
704 };
705
706 enum init_local_logical
707 {
708 GFC_INIT_LOGICAL_OFF = 0,
709 GFC_INIT_LOGICAL_FALSE,
710 GFC_INIT_LOGICAL_TRUE
711 };
712
713 enum init_local_character
714 {
715 GFC_INIT_CHARACTER_OFF = 0,
716 GFC_INIT_CHARACTER_ON
717 };
718
719 enum init_local_integer
720 {
721 GFC_INIT_INTEGER_OFF = 0,
722 GFC_INIT_INTEGER_ON
723 };
724
725 enum gfc_reverse
726 {
727 GFC_ENABLE_REVERSE,
728 GFC_FORWARD_SET,
729 GFC_REVERSE_SET,
730 GFC_INHIBIT_REVERSE
731 };
732
733 enum gfc_param_spec_type
734 {
735 SPEC_EXPLICIT,
736 SPEC_ASSUMED,
737 SPEC_DEFERRED
738 };
739
740 /************************* Structures *****************************/
741
742 /* Used for keeping things in balanced binary trees. */
743 #define BBT_HEADER(self) int priority; struct self *left, *right
744
745 #define NAMED_INTCST(a,b,c,d) a,
746 #define NAMED_KINDARRAY(a,b,c,d) a,
747 #define NAMED_FUNCTION(a,b,c,d) a,
748 #define NAMED_SUBROUTINE(a,b,c,d) a,
749 #define NAMED_DERIVED_TYPE(a,b,c,d) a,
750 enum iso_fortran_env_symbol
751 {
752 ISOFORTRANENV_INVALID = -1,
753 #include "iso-fortran-env.def"
754 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
755 };
756 #undef NAMED_INTCST
757 #undef NAMED_KINDARRAY
758 #undef NAMED_FUNCTION
759 #undef NAMED_SUBROUTINE
760 #undef NAMED_DERIVED_TYPE
761
762 #define NAMED_INTCST(a,b,c,d) a,
763 #define NAMED_REALCST(a,b,c,d) a,
764 #define NAMED_CMPXCST(a,b,c,d) a,
765 #define NAMED_LOGCST(a,b,c) a,
766 #define NAMED_CHARKNDCST(a,b,c) a,
767 #define NAMED_CHARCST(a,b,c) a,
768 #define DERIVED_TYPE(a,b,c) a,
769 #define NAMED_FUNCTION(a,b,c,d) a,
770 #define NAMED_SUBROUTINE(a,b,c,d) a,
771 enum iso_c_binding_symbol
772 {
773 ISOCBINDING_INVALID = -1,
774 #include "iso-c-binding.def"
775 ISOCBINDING_LAST,
776 ISOCBINDING_NUMBER = ISOCBINDING_LAST
777 };
778 #undef NAMED_INTCST
779 #undef NAMED_REALCST
780 #undef NAMED_CMPXCST
781 #undef NAMED_LOGCST
782 #undef NAMED_CHARKNDCST
783 #undef NAMED_CHARCST
784 #undef DERIVED_TYPE
785 #undef NAMED_FUNCTION
786 #undef NAMED_SUBROUTINE
787
788 enum intmod_id
789 {
790 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING,
791 INTMOD_IEEE_FEATURES, INTMOD_IEEE_EXCEPTIONS, INTMOD_IEEE_ARITHMETIC
792 };
793
794 typedef struct
795 {
796 char name[GFC_MAX_SYMBOL_LEN + 1];
797 int value; /* Used for both integer and character values. */
798 bt f90_type;
799 }
800 CInteropKind_t;
801
802 /* Array of structs, where the structs represent the C interop kinds.
803 The list will be implemented based on a hash of the kind name since
804 these could be accessed multiple times.
805 Declared in trans-types.cc as a global, since it's in that file
806 that the list is initialized. */
807 extern CInteropKind_t c_interop_kinds_table[];
808
809 enum gfc_omp_device_type
810 {
811 OMP_DEVICE_TYPE_UNSET,
812 OMP_DEVICE_TYPE_HOST,
813 OMP_DEVICE_TYPE_NOHOST,
814 OMP_DEVICE_TYPE_ANY
815 };
816
817 enum gfc_omp_severity_type
818 {
819 OMP_SEVERITY_UNSET,
820 OMP_SEVERITY_WARNING,
821 OMP_SEVERITY_FATAL
822 };
823
824 enum gfc_omp_at_type
825 {
826 OMP_AT_UNSET,
827 OMP_AT_COMPILATION,
828 OMP_AT_EXECUTION
829 };
830
831 /* Structure and list of supported extension attributes. */
832 typedef enum
833 {
834 EXT_ATTR_DLLIMPORT = 0,
835 EXT_ATTR_DLLEXPORT,
836 EXT_ATTR_STDCALL,
837 EXT_ATTR_CDECL,
838 EXT_ATTR_FASTCALL,
839 EXT_ATTR_NO_ARG_CHECK,
840 EXT_ATTR_DEPRECATED,
841 EXT_ATTR_NOINLINE,
842 EXT_ATTR_NORETURN,
843 EXT_ATTR_WEAK,
844 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
845 }
846 ext_attr_id_t;
847
848 typedef struct
849 {
850 const char *name;
851 unsigned id;
852 const char *middle_end_name;
853 }
854 ext_attr_t;
855
856 extern const ext_attr_t ext_attr_list[];
857
858 /* Symbol attribute structure. */
859 typedef struct
860 {
861 /* Variable attributes. */
862 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1,
863 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
864 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
865 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1,
866 contiguous:1, fe_temp: 1, automatic: 1;
867
868 /* For CLASS containers, the pointer attribute is sometimes set internally
869 even though it was not directly specified. In this case, keep the
870 "real" (original) value here. */
871 unsigned class_pointer:1;
872
873 ENUM_BITFIELD (save_state) save:2;
874
875 unsigned data:1, /* Symbol is named in a DATA statement. */
876 is_protected:1, /* Symbol has been marked as protected. */
877 use_assoc:1, /* Symbol has been use-associated. */
878 used_in_submodule:1, /* Symbol has been use-associated in a
879 submodule. Needed since these entities must
880 be set host associated to be compliant. */
881 use_only:1, /* Symbol has been use-associated, with ONLY. */
882 use_rename:1, /* Symbol has been use-associated and renamed. */
883 imported:1, /* Symbol has been associated by IMPORT. */
884 host_assoc:1; /* Symbol has been host associated. */
885
886 unsigned in_namelist:1, in_common:1, in_equivalence:1;
887 unsigned function:1, subroutine:1, procedure:1;
888 unsigned generic:1, generic_copy:1;
889 unsigned implicit_type:1; /* Type defined via implicit rules. */
890 unsigned untyped:1; /* No implicit type could be found. */
891
892 unsigned is_bind_c:1; /* say if is bound to C. */
893 unsigned extension:8; /* extension level of a derived type. */
894 unsigned is_class:1; /* is a CLASS container. */
895 unsigned class_ok:1; /* is a CLASS object with correct attributes. */
896 unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */
897 unsigned vtype:1; /* is a derived type of a vtab. */
898
899 /* These flags are both in the typespec and attribute. The attribute
900 list is what gets read from/written to a module file. The typespec
901 is created from a decl being processed. */
902 unsigned is_c_interop:1; /* It's c interoperable. */
903 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
904
905 /* Function/subroutine attributes */
906 unsigned sequence:1, elemental:1, pure:1, recursive:1;
907 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
908
909 /* Set if this is a module function or subroutine. Note that it is an
910 attribute because it appears as a prefix in the declaration like
911 PURE, etc.. */
912 unsigned module_procedure:1;
913
914 /* Set if a (public) symbol [e.g. generic name] exposes this symbol,
915 which is relevant for private module procedures. */
916 unsigned public_used:1;
917
918 /* This is set if a contained procedure could be declared pure. This is
919 used for certain optimizations that require the result or arguments
920 cannot alias. Note that this is zero for PURE procedures. */
921 unsigned implicit_pure:1;
922
923 /* This is set for a procedure that contains expressions referencing
924 arrays coming from outside its namespace.
925 This is used to force the creation of a temporary when the LHS of
926 an array assignment may be used by an elemental procedure appearing
927 on the RHS. */
928 unsigned array_outer_dependency:1;
929
930 /* This is set if the subroutine doesn't return. Currently, this
931 is only possible for intrinsic subroutines. */
932 unsigned noreturn:1;
933
934 /* Set if this procedure is an alternate entry point. These procedures
935 don't have any code associated, and the backend will turn them into
936 thunks to the master function. */
937 unsigned entry:1;
938
939 /* Set if this is the master function for a procedure with multiple
940 entry points. */
941 unsigned entry_master:1;
942
943 /* Set if this is the master function for a function with multiple
944 entry points where characteristics of the entry points differ. */
945 unsigned mixed_entry_master:1;
946
947 /* Set if a function must always be referenced by an explicit interface. */
948 unsigned always_explicit:1;
949
950 /* Set if the symbol is generated and, hence, standard violations
951 shouldn't be flaged. */
952 unsigned artificial:1;
953
954 /* Set if the symbol has been referenced in an expression. No further
955 modification of type or type parameters is permitted. */
956 unsigned referenced:1;
957
958 /* Set if this is the symbol for the main program. */
959 unsigned is_main_program:1;
960
961 /* Mutually exclusive multibit attributes. */
962 ENUM_BITFIELD (gfc_access) access:2;
963 ENUM_BITFIELD (sym_intent) intent:2;
964 ENUM_BITFIELD (sym_flavor) flavor:4;
965 ENUM_BITFIELD (ifsrc) if_source:2;
966
967 ENUM_BITFIELD (procedure_type) proc:3;
968
969 /* Special attributes for Cray pointers, pointees. */
970 unsigned cray_pointer:1, cray_pointee:1;
971
972 /* The symbol is a derived type with allocatable components, pointer
973 components or private components, procedure pointer components,
974 possibly nested. zero_comp is true if the derived type has no
975 component at all. defined_assign_comp is true if the derived
976 type or a (sub-)component has a typebound defined assignment.
977 unlimited_polymorphic flags the type of the container for these
978 entities. */
979 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
980 private_comp:1, zero_comp:1, coarray_comp:1, lock_comp:1,
981 event_comp:1, defined_assign_comp:1, unlimited_polymorphic:1,
982 has_dtio_procs:1, caf_token:1;
983
984 /* This is a temporary selector for SELECT TYPE/RANK or an associate
985 variable for SELECT TYPE/RANK or ASSOCIATE. */
986 unsigned select_type_temporary:1, select_rank_temporary:1, associate_var:1;
987
988 /* These are the attributes required for parameterized derived
989 types. */
990 unsigned pdt_kind:1, pdt_len:1, pdt_type:1, pdt_template:1,
991 pdt_array:1, pdt_string:1;
992
993 /* This is omp_{out,in,priv,orig} artificial variable in
994 !$OMP DECLARE REDUCTION. */
995 unsigned omp_udr_artificial_var:1;
996
997 /* Mentioned in OMP DECLARE TARGET. */
998 unsigned omp_declare_target:1;
999 unsigned omp_declare_target_link:1;
1000 ENUM_BITFIELD (gfc_omp_device_type) omp_device_type:2;
1001
1002 /* Mentioned in OACC DECLARE. */
1003 unsigned oacc_declare_create:1;
1004 unsigned oacc_declare_copyin:1;
1005 unsigned oacc_declare_deviceptr:1;
1006 unsigned oacc_declare_device_resident:1;
1007 unsigned oacc_declare_link:1;
1008
1009 /* OpenACC 'routine' directive's level of parallelism. */
1010 ENUM_BITFIELD (oacc_routine_lop) oacc_routine_lop:3;
1011 unsigned oacc_routine_nohost:1;
1012
1013 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
1014 unsigned ext_attr:EXT_ATTR_NUM;
1015
1016 /* The namespace where the attribute has been set. */
1017 struct gfc_namespace *volatile_ns, *asynchronous_ns;
1018 }
1019 symbol_attribute;
1020
1021
1022 /* We need to store source lines as sequences of multibyte source
1023 characters. We define here a type wide enough to hold any multibyte
1024 source character, just like libcpp does. A 32-bit type is enough. */
1025
1026 #if HOST_BITS_PER_INT >= 32
1027 typedef unsigned int gfc_char_t;
1028 #elif HOST_BITS_PER_LONG >= 32
1029 typedef unsigned long gfc_char_t;
1030 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
1031 typedef unsigned long long gfc_char_t;
1032 #else
1033 # error "Cannot find an integer type with at least 32 bits"
1034 #endif
1035
1036
1037 /* The following three structures are used to identify a location in
1038 the sources.
1039
1040 gfc_file is used to maintain a tree of the source files and how
1041 they include each other
1042
1043 gfc_linebuf holds a single line of source code and information
1044 which file it resides in
1045
1046 locus point to the sourceline and the character in the source
1047 line.
1048 */
1049
1050 typedef struct gfc_file
1051 {
1052 struct gfc_file *next, *up;
1053 int inclusion_line, line;
1054 char *filename;
1055 } gfc_file;
1056
1057 typedef struct gfc_linebuf
1058 {
1059 location_t location;
1060 struct gfc_file *file;
1061 struct gfc_linebuf *next;
1062
1063 int truncated;
1064 bool dbg_emitted;
1065
1066 gfc_char_t line[1];
1067 } gfc_linebuf;
1068
1069 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
1070
1071 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
1072
1073 typedef struct
1074 {
1075 gfc_char_t *nextc;
1076 gfc_linebuf *lb;
1077 } locus;
1078
1079 /* In order for the "gfc" format checking to work correctly, you must
1080 have declared a typedef locus first. */
1081 #if GCC_VERSION >= 4001
1082 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
1083 #else
1084 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
1085 #endif
1086
1087
1088 /* Suppress error messages or re-enable them. */
1089
1090 void gfc_push_suppress_errors (void);
1091 void gfc_pop_suppress_errors (void);
1092 bool gfc_query_suppress_errors (void);
1093
1094
1095 /* Character length structures hold the expression that gives the
1096 length of a character variable. We avoid putting these into
1097 gfc_typespec because doing so prevents us from doing structure
1098 copies and forces us to deallocate any typespecs we create, as well
1099 as structures that contain typespecs. They also can have multiple
1100 character typespecs pointing to them.
1101
1102 These structures form a singly linked list within the current
1103 namespace and are deallocated with the namespace. It is possible to
1104 end up with gfc_charlen structures that have nothing pointing to them. */
1105
1106 typedef struct gfc_charlen
1107 {
1108 struct gfc_expr *length;
1109 struct gfc_charlen *next;
1110 bool length_from_typespec; /* Length from explicit array ctor typespec? */
1111 tree backend_decl;
1112 tree passed_length; /* Length argument explicitly passed. */
1113
1114 int resolved;
1115 }
1116 gfc_charlen;
1117
1118 #define gfc_get_charlen() XCNEW (gfc_charlen)
1119
1120 /* Type specification structure. */
1121 typedef struct
1122 {
1123 bt type;
1124 int kind;
1125
1126 union
1127 {
1128 struct gfc_symbol *derived; /* For derived types only. */
1129 gfc_charlen *cl; /* For character types only. */
1130 int pad; /* For hollerith types only. */
1131 }
1132 u;
1133
1134 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
1135 int is_c_interop;
1136 int is_iso_c;
1137 bt f90_type;
1138 bool deferred;
1139 gfc_symbol *interop_kind;
1140 }
1141 gfc_typespec;
1142
1143 /* Array specification. */
1144 typedef struct
1145 {
1146 int rank; /* A scalar has a rank of 0, an assumed-rank array has -1. */
1147 int corank;
1148 array_type type, cotype;
1149 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
1150
1151 /* These two fields are used with the Cray Pointer extension. */
1152 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
1153 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
1154 AS_EXPLICIT, but we want to remember that we
1155 did this. */
1156
1157 bool resolved;
1158 }
1159 gfc_array_spec;
1160
1161 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
1162
1163
1164 /* Components of derived types. */
1165 typedef struct gfc_component
1166 {
1167 const char *name;
1168 gfc_typespec ts;
1169
1170 symbol_attribute attr;
1171 gfc_array_spec *as;
1172
1173 tree backend_decl;
1174 /* Used to cache a FIELD_DECL matching this same component
1175 but applied to a different backend containing type that was
1176 generated by gfc_nonrestricted_type. */
1177 tree norestrict_decl;
1178 locus loc;
1179 struct gfc_expr *initializer;
1180 /* Used in parameterized derived type declarations to store parameterized
1181 kind expressions. */
1182 struct gfc_expr *kind_expr;
1183 struct gfc_actual_arglist *param_list;
1184
1185 struct gfc_component *next;
1186
1187 /* Needed for procedure pointer components. */
1188 struct gfc_typebound_proc *tb;
1189 /* When allocatable/pointer and in a coarray the associated token. */
1190 tree caf_token;
1191 }
1192 gfc_component;
1193
1194 #define gfc_get_component() XCNEW (gfc_component)
1195
1196 /* Formal argument lists are lists of symbols. */
1197 typedef struct gfc_formal_arglist
1198 {
1199 /* Symbol representing the argument at this position in the arglist. */
1200 struct gfc_symbol *sym;
1201 /* Points to the next formal argument. */
1202 struct gfc_formal_arglist *next;
1203 }
1204 gfc_formal_arglist;
1205
1206 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
1207
1208
1209 struct gfc_dummy_arg;
1210
1211
1212 /* The gfc_actual_arglist structure is for actual arguments and
1213 for type parameter specification lists. */
1214 typedef struct gfc_actual_arglist
1215 {
1216 const char *name;
1217 /* Alternate return label when the expr member is null. */
1218 struct gfc_st_label *label;
1219
1220 gfc_param_spec_type spec_type;
1221
1222 struct gfc_expr *expr;
1223
1224 /* The dummy arg this actual arg is associated with, if the interface
1225 is explicit. NULL otherwise. */
1226 gfc_dummy_arg *associated_dummy;
1227
1228 struct gfc_actual_arglist *next;
1229 }
1230 gfc_actual_arglist;
1231
1232 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
1233
1234
1235 /* Because a symbol can belong to multiple namelists, they must be
1236 linked externally to the symbol itself. */
1237 typedef struct gfc_namelist
1238 {
1239 struct gfc_symbol *sym;
1240 struct gfc_namelist *next;
1241 }
1242 gfc_namelist;
1243
1244 #define gfc_get_namelist() XCNEW (gfc_namelist)
1245
1246 /* Likewise to gfc_namelist, but contains expressions. */
1247 typedef struct gfc_expr_list
1248 {
1249 struct gfc_expr *expr;
1250 struct gfc_expr_list *next;
1251 }
1252 gfc_expr_list;
1253
1254 #define gfc_get_expr_list() XCNEW (gfc_expr_list)
1255
1256 enum gfc_omp_reduction_op
1257 {
1258 OMP_REDUCTION_NONE = -1,
1259 OMP_REDUCTION_PLUS = INTRINSIC_PLUS,
1260 OMP_REDUCTION_MINUS = INTRINSIC_MINUS,
1261 OMP_REDUCTION_TIMES = INTRINSIC_TIMES,
1262 OMP_REDUCTION_AND = INTRINSIC_AND,
1263 OMP_REDUCTION_OR = INTRINSIC_OR,
1264 OMP_REDUCTION_EQV = INTRINSIC_EQV,
1265 OMP_REDUCTION_NEQV = INTRINSIC_NEQV,
1266 OMP_REDUCTION_MAX = GFC_INTRINSIC_END,
1267 OMP_REDUCTION_MIN,
1268 OMP_REDUCTION_IAND,
1269 OMP_REDUCTION_IOR,
1270 OMP_REDUCTION_IEOR,
1271 OMP_REDUCTION_USER
1272 };
1273
1274 enum gfc_omp_depend_doacross_op
1275 {
1276 OMP_DEPEND_UNSET,
1277 OMP_DEPEND_IN,
1278 OMP_DEPEND_OUT,
1279 OMP_DEPEND_INOUT,
1280 OMP_DEPEND_INOUTSET,
1281 OMP_DEPEND_MUTEXINOUTSET,
1282 OMP_DEPEND_DEPOBJ,
1283 OMP_DEPEND_SINK_FIRST,
1284 OMP_DOACROSS_SINK_FIRST,
1285 OMP_DOACROSS_SINK
1286 };
1287
1288 enum gfc_omp_map_op
1289 {
1290 OMP_MAP_ALLOC,
1291 OMP_MAP_IF_PRESENT,
1292 OMP_MAP_ATTACH,
1293 OMP_MAP_TO,
1294 OMP_MAP_FROM,
1295 OMP_MAP_TOFROM,
1296 OMP_MAP_DELETE,
1297 OMP_MAP_DETACH,
1298 OMP_MAP_FORCE_ALLOC,
1299 OMP_MAP_FORCE_TO,
1300 OMP_MAP_FORCE_FROM,
1301 OMP_MAP_FORCE_TOFROM,
1302 OMP_MAP_FORCE_PRESENT,
1303 OMP_MAP_FORCE_DEVICEPTR,
1304 OMP_MAP_DEVICE_RESIDENT,
1305 OMP_MAP_LINK,
1306 OMP_MAP_RELEASE,
1307 OMP_MAP_ALWAYS_TO,
1308 OMP_MAP_ALWAYS_FROM,
1309 OMP_MAP_ALWAYS_TOFROM
1310 };
1311
1312 enum gfc_omp_defaultmap
1313 {
1314 OMP_DEFAULTMAP_UNSET,
1315 OMP_DEFAULTMAP_ALLOC,
1316 OMP_DEFAULTMAP_TO,
1317 OMP_DEFAULTMAP_FROM,
1318 OMP_DEFAULTMAP_TOFROM,
1319 OMP_DEFAULTMAP_FIRSTPRIVATE,
1320 OMP_DEFAULTMAP_NONE,
1321 OMP_DEFAULTMAP_DEFAULT,
1322 OMP_DEFAULTMAP_PRESENT
1323 };
1324
1325 enum gfc_omp_defaultmap_category
1326 {
1327 OMP_DEFAULTMAP_CAT_UNCATEGORIZED,
1328 OMP_DEFAULTMAP_CAT_SCALAR,
1329 OMP_DEFAULTMAP_CAT_AGGREGATE,
1330 OMP_DEFAULTMAP_CAT_ALLOCATABLE,
1331 OMP_DEFAULTMAP_CAT_POINTER,
1332 OMP_DEFAULTMAP_CAT_NUM
1333 };
1334
1335 enum gfc_omp_linear_op
1336 {
1337 OMP_LINEAR_DEFAULT,
1338 OMP_LINEAR_REF,
1339 OMP_LINEAR_VAL,
1340 OMP_LINEAR_UVAL
1341 };
1342
1343 /* For use in OpenMP clauses in case we need extra information
1344 (aligned clause alignment, linear clause step, etc.). */
1345
1346 typedef struct gfc_omp_namelist
1347 {
1348 struct gfc_symbol *sym;
1349 struct gfc_expr *expr;
1350 union
1351 {
1352 gfc_omp_reduction_op reduction_op;
1353 gfc_omp_depend_doacross_op depend_doacross_op;
1354 gfc_omp_map_op map_op;
1355 gfc_expr *align;
1356 struct
1357 {
1358 ENUM_BITFIELD (gfc_omp_linear_op) op:4;
1359 bool old_modifier;
1360 } linear;
1361 struct gfc_common_head *common;
1362 bool lastprivate_conditional;
1363 } u;
1364 union
1365 {
1366 struct gfc_omp_namelist_udr *udr;
1367 gfc_namespace *ns;
1368 } u2;
1369 struct gfc_omp_namelist *next;
1370 locus where;
1371 }
1372 gfc_omp_namelist;
1373
1374 #define gfc_get_omp_namelist() XCNEW (gfc_omp_namelist)
1375
1376 enum
1377 {
1378 OMP_LIST_FIRST,
1379 OMP_LIST_PRIVATE = OMP_LIST_FIRST,
1380 OMP_LIST_FIRSTPRIVATE,
1381 OMP_LIST_LASTPRIVATE,
1382 OMP_LIST_COPYPRIVATE,
1383 OMP_LIST_SHARED,
1384 OMP_LIST_COPYIN,
1385 OMP_LIST_UNIFORM,
1386 OMP_LIST_AFFINITY,
1387 OMP_LIST_ALIGNED,
1388 OMP_LIST_LINEAR,
1389 OMP_LIST_DEPEND,
1390 OMP_LIST_MAP,
1391 OMP_LIST_TO,
1392 OMP_LIST_FROM,
1393 OMP_LIST_SCAN_IN,
1394 OMP_LIST_SCAN_EX,
1395 OMP_LIST_REDUCTION,
1396 OMP_LIST_REDUCTION_INSCAN,
1397 OMP_LIST_REDUCTION_TASK,
1398 OMP_LIST_IN_REDUCTION,
1399 OMP_LIST_TASK_REDUCTION,
1400 OMP_LIST_DEVICE_RESIDENT,
1401 OMP_LIST_LINK,
1402 OMP_LIST_USE_DEVICE,
1403 OMP_LIST_CACHE,
1404 OMP_LIST_IS_DEVICE_PTR,
1405 OMP_LIST_USE_DEVICE_PTR,
1406 OMP_LIST_USE_DEVICE_ADDR,
1407 OMP_LIST_NONTEMPORAL,
1408 OMP_LIST_ALLOCATE,
1409 OMP_LIST_HAS_DEVICE_ADDR,
1410 OMP_LIST_ENTER,
1411 OMP_LIST_NUM /* Must be the last. */
1412 };
1413
1414 /* Because a symbol can belong to multiple namelists, they must be
1415 linked externally to the symbol itself. */
1416
1417 enum gfc_omp_sched_kind
1418 {
1419 OMP_SCHED_NONE,
1420 OMP_SCHED_STATIC,
1421 OMP_SCHED_DYNAMIC,
1422 OMP_SCHED_GUIDED,
1423 OMP_SCHED_RUNTIME,
1424 OMP_SCHED_AUTO
1425 };
1426
1427 enum gfc_omp_default_sharing
1428 {
1429 OMP_DEFAULT_UNKNOWN,
1430 OMP_DEFAULT_NONE,
1431 OMP_DEFAULT_PRIVATE,
1432 OMP_DEFAULT_SHARED,
1433 OMP_DEFAULT_FIRSTPRIVATE,
1434 OMP_DEFAULT_PRESENT
1435 };
1436
1437 enum gfc_omp_proc_bind_kind
1438 {
1439 OMP_PROC_BIND_UNKNOWN,
1440 OMP_PROC_BIND_PRIMARY,
1441 OMP_PROC_BIND_MASTER,
1442 OMP_PROC_BIND_SPREAD,
1443 OMP_PROC_BIND_CLOSE
1444 };
1445
1446 enum gfc_omp_cancel_kind
1447 {
1448 OMP_CANCEL_UNKNOWN,
1449 OMP_CANCEL_PARALLEL,
1450 OMP_CANCEL_SECTIONS,
1451 OMP_CANCEL_DO,
1452 OMP_CANCEL_TASKGROUP
1453 };
1454
1455 enum gfc_omp_if_kind
1456 {
1457 OMP_IF_CANCEL,
1458 OMP_IF_PARALLEL,
1459 OMP_IF_SIMD,
1460 OMP_IF_TASK,
1461 OMP_IF_TASKLOOP,
1462 OMP_IF_TARGET,
1463 OMP_IF_TARGET_DATA,
1464 OMP_IF_TARGET_UPDATE,
1465 OMP_IF_TARGET_ENTER_DATA,
1466 OMP_IF_TARGET_EXIT_DATA,
1467 OMP_IF_LAST
1468 };
1469
1470 enum gfc_omp_atomic_op
1471 {
1472 GFC_OMP_ATOMIC_UNSET = 0,
1473 GFC_OMP_ATOMIC_UPDATE = 1,
1474 GFC_OMP_ATOMIC_READ = 2,
1475 GFC_OMP_ATOMIC_WRITE = 3,
1476 GFC_OMP_ATOMIC_MASK = 3,
1477 GFC_OMP_ATOMIC_SWAP = 16
1478 };
1479
1480 enum gfc_omp_requires_kind
1481 {
1482 /* Keep in sync with gfc_namespace, esp. with omp_req_mem_order. */
1483 OMP_REQ_ATOMIC_MEM_ORDER_SEQ_CST = 1, /* 01 */
1484 OMP_REQ_ATOMIC_MEM_ORDER_ACQ_REL = 2, /* 10 */
1485 OMP_REQ_ATOMIC_MEM_ORDER_RELAXED = 3, /* 11 */
1486 OMP_REQ_REVERSE_OFFLOAD = (1 << 2),
1487 OMP_REQ_UNIFIED_ADDRESS = (1 << 3),
1488 OMP_REQ_UNIFIED_SHARED_MEMORY = (1 << 4),
1489 OMP_REQ_DYNAMIC_ALLOCATORS = (1 << 5),
1490 OMP_REQ_TARGET_MASK = (OMP_REQ_REVERSE_OFFLOAD
1491 | OMP_REQ_UNIFIED_ADDRESS
1492 | OMP_REQ_UNIFIED_SHARED_MEMORY),
1493 OMP_REQ_ATOMIC_MEM_ORDER_MASK = (OMP_REQ_ATOMIC_MEM_ORDER_SEQ_CST
1494 | OMP_REQ_ATOMIC_MEM_ORDER_ACQ_REL
1495 | OMP_REQ_ATOMIC_MEM_ORDER_RELAXED)
1496 };
1497
1498 enum gfc_omp_memorder
1499 {
1500 OMP_MEMORDER_UNSET,
1501 OMP_MEMORDER_SEQ_CST,
1502 OMP_MEMORDER_ACQ_REL,
1503 OMP_MEMORDER_RELEASE,
1504 OMP_MEMORDER_ACQUIRE,
1505 OMP_MEMORDER_RELAXED
1506 };
1507
1508 enum gfc_omp_bind_type
1509 {
1510 OMP_BIND_UNSET,
1511 OMP_BIND_TEAMS,
1512 OMP_BIND_PARALLEL,
1513 OMP_BIND_THREAD
1514 };
1515
1516 typedef struct gfc_omp_assumptions
1517 {
1518 int n_absent, n_contains;
1519 enum gfc_statement *absent, *contains;
1520 gfc_expr_list *holds;
1521 bool no_openmp:1, no_openmp_routines:1, no_parallelism:1;
1522 }
1523 gfc_omp_assumptions;
1524
1525 #define gfc_get_omp_assumptions() XCNEW (gfc_omp_assumptions)
1526
1527
1528 typedef struct gfc_omp_clauses
1529 {
1530 gfc_omp_namelist *lists[OMP_LIST_NUM];
1531 struct gfc_expr *if_expr;
1532 struct gfc_expr *final_expr;
1533 struct gfc_expr *num_threads;
1534 struct gfc_expr *chunk_size;
1535 struct gfc_expr *safelen_expr;
1536 struct gfc_expr *simdlen_expr;
1537 struct gfc_expr *num_teams_lower;
1538 struct gfc_expr *num_teams_upper;
1539 struct gfc_expr *device;
1540 struct gfc_expr *thread_limit;
1541 struct gfc_expr *grainsize;
1542 struct gfc_expr *filter;
1543 struct gfc_expr *hint;
1544 struct gfc_expr *num_tasks;
1545 struct gfc_expr *priority;
1546 struct gfc_expr *detach;
1547 struct gfc_expr *depobj;
1548 struct gfc_expr *if_exprs[OMP_IF_LAST];
1549 struct gfc_expr *dist_chunk_size;
1550 struct gfc_expr *message;
1551 struct gfc_omp_assumptions *assume;
1552 const char *critical_name;
1553 enum gfc_omp_default_sharing default_sharing;
1554 enum gfc_omp_atomic_op atomic_op;
1555 enum gfc_omp_defaultmap defaultmap[OMP_DEFAULTMAP_CAT_NUM];
1556 int collapse, orderedc;
1557 unsigned nowait:1, ordered:1, untied:1, mergeable:1, ancestor:1;
1558 unsigned inbranch:1, notinbranch:1, nogroup:1;
1559 unsigned sched_simd:1, sched_monotonic:1, sched_nonmonotonic:1;
1560 unsigned simd:1, threads:1, doacross_source:1, depend_source:1, destroy:1;
1561 unsigned order_unconstrained:1, order_reproducible:1, capture:1;
1562 unsigned grainsize_strict:1, num_tasks_strict:1, compare:1, weak:1;
1563 unsigned non_rectangular:1, order_concurrent:1;
1564 ENUM_BITFIELD (gfc_omp_sched_kind) sched_kind:3;
1565 ENUM_BITFIELD (gfc_omp_device_type) device_type:2;
1566 ENUM_BITFIELD (gfc_omp_memorder) memorder:3;
1567 ENUM_BITFIELD (gfc_omp_memorder) fail:3;
1568 ENUM_BITFIELD (gfc_omp_cancel_kind) cancel:3;
1569 ENUM_BITFIELD (gfc_omp_proc_bind_kind) proc_bind:3;
1570 ENUM_BITFIELD (gfc_omp_depend_doacross_op) depobj_update:4;
1571 ENUM_BITFIELD (gfc_omp_bind_type) bind:2;
1572 ENUM_BITFIELD (gfc_omp_at_type) at:2;
1573 ENUM_BITFIELD (gfc_omp_severity_type) severity:2;
1574 ENUM_BITFIELD (gfc_omp_sched_kind) dist_sched_kind:3;
1575
1576 /* OpenACC. */
1577 struct gfc_expr *async_expr;
1578 struct gfc_expr *gang_static_expr;
1579 struct gfc_expr *gang_num_expr;
1580 struct gfc_expr *worker_expr;
1581 struct gfc_expr *vector_expr;
1582 struct gfc_expr *num_gangs_expr;
1583 struct gfc_expr *num_workers_expr;
1584 struct gfc_expr *vector_length_expr;
1585 gfc_expr_list *wait_list;
1586 gfc_expr_list *tile_list;
1587 unsigned async:1, gang:1, worker:1, vector:1, seq:1, independent:1;
1588 unsigned par_auto:1, gang_static:1;
1589 unsigned if_present:1, finalize:1;
1590 unsigned nohost:1;
1591 locus loc;
1592 }
1593 gfc_omp_clauses;
1594
1595 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1596
1597
1598 /* Node in the linked list used for storing !$oacc declare constructs. */
1599
1600 typedef struct gfc_oacc_declare
1601 {
1602 struct gfc_oacc_declare *next;
1603 bool module_var;
1604 gfc_omp_clauses *clauses;
1605 locus loc;
1606 }
1607 gfc_oacc_declare;
1608
1609 #define gfc_get_oacc_declare() XCNEW (gfc_oacc_declare)
1610
1611
1612 /* Node in the linked list used for storing !$omp declare simd constructs. */
1613
1614 typedef struct gfc_omp_declare_simd
1615 {
1616 struct gfc_omp_declare_simd *next;
1617 locus where; /* Where the !$omp declare simd construct occurred. */
1618
1619 gfc_symbol *proc_name;
1620
1621 gfc_omp_clauses *clauses;
1622 }
1623 gfc_omp_declare_simd;
1624 #define gfc_get_omp_declare_simd() XCNEW (gfc_omp_declare_simd)
1625
1626
1627 enum gfc_omp_trait_property_kind
1628 {
1629 CTX_PROPERTY_NONE,
1630 CTX_PROPERTY_USER,
1631 CTX_PROPERTY_NAME_LIST,
1632 CTX_PROPERTY_ID,
1633 CTX_PROPERTY_EXPR,
1634 CTX_PROPERTY_SIMD
1635 };
1636
1637 typedef struct gfc_omp_trait_property
1638 {
1639 struct gfc_omp_trait_property *next;
1640 enum gfc_omp_trait_property_kind property_kind;
1641 bool is_name : 1;
1642
1643 union
1644 {
1645 gfc_expr *expr;
1646 gfc_symbol *sym;
1647 gfc_omp_clauses *clauses;
1648 char *name;
1649 };
1650 } gfc_omp_trait_property;
1651 #define gfc_get_omp_trait_property() XCNEW (gfc_omp_trait_property)
1652
1653 typedef struct gfc_omp_selector
1654 {
1655 struct gfc_omp_selector *next;
1656
1657 char *trait_selector_name;
1658 gfc_expr *score;
1659 struct gfc_omp_trait_property *properties;
1660 } gfc_omp_selector;
1661 #define gfc_get_omp_selector() XCNEW (gfc_omp_selector)
1662
1663 typedef struct gfc_omp_set_selector
1664 {
1665 struct gfc_omp_set_selector *next;
1666
1667 const char *trait_set_selector_name;
1668 struct gfc_omp_selector *trait_selectors;
1669 } gfc_omp_set_selector;
1670 #define gfc_get_omp_set_selector() XCNEW (gfc_omp_set_selector)
1671
1672
1673 /* Node in the linked list used for storing !$omp declare variant
1674 constructs. */
1675
1676 typedef struct gfc_omp_declare_variant
1677 {
1678 struct gfc_omp_declare_variant *next;
1679 locus where; /* Where the !$omp declare variant construct occurred. */
1680
1681 struct gfc_symtree *base_proc_symtree;
1682 struct gfc_symtree *variant_proc_symtree;
1683
1684 gfc_omp_set_selector *set_selectors;
1685
1686 bool checked_p : 1; /* Set if previously checked for errors. */
1687 bool error_p : 1; /* Set if error found in directive. */
1688 }
1689 gfc_omp_declare_variant;
1690 #define gfc_get_omp_declare_variant() XCNEW (gfc_omp_declare_variant)
1691
1692
1693 typedef struct gfc_omp_udr
1694 {
1695 struct gfc_omp_udr *next;
1696 locus where; /* Where the !$omp declare reduction construct occurred. */
1697
1698 const char *name;
1699 gfc_typespec ts;
1700 gfc_omp_reduction_op rop;
1701
1702 struct gfc_symbol *omp_out;
1703 struct gfc_symbol *omp_in;
1704 struct gfc_namespace *combiner_ns;
1705
1706 struct gfc_symbol *omp_priv;
1707 struct gfc_symbol *omp_orig;
1708 struct gfc_namespace *initializer_ns;
1709 }
1710 gfc_omp_udr;
1711 #define gfc_get_omp_udr() XCNEW (gfc_omp_udr)
1712
1713 typedef struct gfc_omp_namelist_udr
1714 {
1715 struct gfc_omp_udr *udr;
1716 struct gfc_code *combiner;
1717 struct gfc_code *initializer;
1718 }
1719 gfc_omp_namelist_udr;
1720 #define gfc_get_omp_namelist_udr() XCNEW (gfc_omp_namelist_udr)
1721
1722 /* The gfc_st_label structure is a BBT attached to a namespace that
1723 records the usage of statement labels within that space. */
1724
1725 typedef struct gfc_st_label
1726 {
1727 BBT_HEADER(gfc_st_label);
1728
1729 int value;
1730
1731 gfc_sl_type defined, referenced;
1732
1733 struct gfc_expr *format;
1734
1735 tree backend_decl;
1736
1737 locus where;
1738
1739 gfc_namespace *ns;
1740 }
1741 gfc_st_label;
1742
1743
1744 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1745 typedef struct gfc_interface
1746 {
1747 struct gfc_symbol *sym;
1748 locus where;
1749 struct gfc_interface *next;
1750 }
1751 gfc_interface;
1752
1753 #define gfc_get_interface() XCNEW (gfc_interface)
1754
1755 /* User operator nodes. These are like stripped down symbols. */
1756 typedef struct
1757 {
1758 const char *name;
1759
1760 gfc_interface *op;
1761 struct gfc_namespace *ns;
1762 gfc_access access;
1763 }
1764 gfc_user_op;
1765
1766
1767 /* A list of specific bindings that are associated with a generic spec. */
1768 typedef struct gfc_tbp_generic
1769 {
1770 /* The parser sets specific_st, upon resolution we look for the corresponding
1771 gfc_typebound_proc and set specific for further use. */
1772 struct gfc_symtree* specific_st;
1773 struct gfc_typebound_proc* specific;
1774
1775 struct gfc_tbp_generic* next;
1776 bool is_operator;
1777 }
1778 gfc_tbp_generic;
1779
1780 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1781
1782
1783 /* Data needed for type-bound procedures. */
1784 typedef struct gfc_typebound_proc
1785 {
1786 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1787
1788 union
1789 {
1790 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1791 gfc_tbp_generic* generic;
1792 }
1793 u;
1794
1795 gfc_access access;
1796 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1797
1798 /* The overridden type-bound proc (or GENERIC with this name in the
1799 parent-type) or NULL if non. */
1800 struct gfc_typebound_proc* overridden;
1801
1802 /* Once resolved, we use the position of pass_arg in the formal arglist of
1803 the binding-target procedure to identify it. The first argument has
1804 number 1 here, the second 2, and so on. */
1805 unsigned pass_arg_num;
1806
1807 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1808 unsigned non_overridable:1;
1809 unsigned deferred:1;
1810 unsigned is_generic:1;
1811 unsigned function:1, subroutine:1;
1812 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1813 unsigned ppc:1;
1814 }
1815 gfc_typebound_proc;
1816
1817
1818 /* Symbol nodes. These are important things. They are what the
1819 standard refers to as "entities". The possibly multiple names that
1820 refer to the same entity are accomplished by a binary tree of
1821 symtree structures that is balanced by the red-black method-- more
1822 than one symtree node can point to any given symbol. */
1823
1824 typedef struct gfc_symbol
1825 {
1826 const char *name; /* Primary name, before renaming */
1827 const char *module; /* Module this symbol came from */
1828 locus declared_at;
1829
1830 gfc_typespec ts;
1831 symbol_attribute attr;
1832
1833 /* The formal member points to the formal argument list if the
1834 symbol is a function or subroutine name. If the symbol is a
1835 generic name, the generic member points to the list of
1836 interfaces. */
1837
1838 gfc_interface *generic;
1839 gfc_access component_access;
1840
1841 gfc_formal_arglist *formal;
1842 struct gfc_namespace *formal_ns;
1843 struct gfc_namespace *f2k_derived;
1844
1845 /* List of PDT parameter expressions */
1846 struct gfc_actual_arglist *param_list;
1847
1848 struct gfc_expr *value; /* Parameter/Initializer value */
1849 gfc_array_spec *as;
1850 struct gfc_symbol *result; /* function result symbol */
1851 gfc_component *components; /* Derived type components */
1852
1853 /* Defined only for Cray pointees; points to their pointer. */
1854 struct gfc_symbol *cp_pointer;
1855
1856 int entry_id; /* Used in resolve.cc for entries. */
1857
1858 /* CLASS hashed name for declared and dynamic types in the class. */
1859 int hash_value;
1860
1861 struct gfc_symbol *common_next; /* Links for COMMON syms */
1862
1863 /* This is only used for pointer comparisons to check if symbols
1864 are in the same common block.
1865 In opposition to common_block, the common_head pointer takes into account
1866 equivalences: if A is in a common block C and A and B are in equivalence,
1867 then both A and B have common_head pointing to C, while A's common_block
1868 points to C and B's is NULL. */
1869 struct gfc_common_head* common_head;
1870
1871 /* Make sure setup code for dummy arguments is generated in the correct
1872 order. */
1873 int dummy_order;
1874
1875 gfc_namelist *namelist, *namelist_tail;
1876
1877 /* The tlink field is used in the front end to carry the module
1878 declaration of separate module procedures so that the characteristics
1879 can be compared with the corresponding declaration in a submodule. In
1880 translation this field carries a linked list of symbols that require
1881 deferred initialization. */
1882 struct gfc_symbol *tlink;
1883
1884 /* Change management fields. Symbols that might be modified by the
1885 current statement have the mark member nonzero. Of these symbols,
1886 symbols with old_symbol equal to NULL are symbols created within
1887 the current statement. Otherwise, old_symbol points to a copy of
1888 the old symbol. gfc_new is used in symbol.cc to flag new symbols.
1889 comp_mark is used to indicate variables which have component accesses
1890 in OpenMP/OpenACC directive clauses (cf. c-typeck.cc:c_finish_omp_clauses,
1891 map_field_head).
1892 data_mark is used to check duplicate mappings for OpenMP data-sharing
1893 clauses (see firstprivate_head/lastprivate_head in the above function).
1894 dev_mark is used to check duplicate mappings for OpenMP
1895 is_device_ptr/has_device_addr clauses (see is_on_device_head in above
1896 function).
1897 gen_mark is used to check duplicate mappings for OpenMP
1898 use_device_ptr/use_device_addr/private/shared clauses (see generic_head in
1899 above functon).
1900 reduc_mark is used to check duplicate mappings for OpenMP reduction
1901 clauses. */
1902 struct gfc_symbol *old_symbol;
1903 unsigned mark:1, comp_mark:1, data_mark:1, dev_mark:1, gen_mark:1;
1904 unsigned reduc_mark:1, gfc_new:1;
1905
1906 /* Nonzero if all equivalences associated with this symbol have been
1907 processed. */
1908 unsigned equiv_built:1;
1909 /* Set if this variable is used as an index name in a FORALL. */
1910 unsigned forall_index:1;
1911 /* Set if the symbol is used in a function result specification . */
1912 unsigned fn_result_spec:1;
1913 /* Used to avoid multiple resolutions of a single symbol. */
1914 /* = 2 if this has already been resolved as an intrinsic,
1915 in gfc_resolve_intrinsic,
1916 = 1 if it has been resolved in resolve_symbol. */
1917 unsigned resolve_symbol_called:2;
1918 /* Set if this is a module function or subroutine with the
1919 abreviated declaration in a submodule. */
1920 unsigned abr_modproc_decl:1;
1921 /* Set if a previous error or warning has occurred and no other
1922 should be reported. */
1923 unsigned error:1;
1924 /* Set if the dummy argument of a procedure could be an array despite
1925 being called with a scalar actual argument. */
1926 unsigned maybe_array:1;
1927 /* Set if this should be passed by value, but is not a VALUE argument
1928 according to the Fortran standard. */
1929 unsigned pass_as_value:1;
1930
1931 int refs;
1932 struct gfc_namespace *ns; /* namespace containing this symbol */
1933
1934 tree backend_decl;
1935
1936 /* Identity of the intrinsic module the symbol comes from, or
1937 INTMOD_NONE if it's not imported from a intrinsic module. */
1938 intmod_id from_intmod;
1939 /* Identity of the symbol from intrinsic modules, from enums maintained
1940 separately by each intrinsic module. Used together with from_intmod,
1941 it uniquely identifies a symbol from an intrinsic module. */
1942 int intmod_sym_id;
1943
1944 /* This may be repetitive, since the typespec now has a binding
1945 label field. */
1946 const char* binding_label;
1947 /* Store a reference to the common_block, if this symbol is in one. */
1948 struct gfc_common_head *common_block;
1949
1950 /* Link to corresponding association-list if this is an associate name. */
1951 struct gfc_association_list *assoc;
1952
1953 /* Link to next entry in derived type list */
1954 struct gfc_symbol *dt_next;
1955 }
1956 gfc_symbol;
1957
1958
1959 struct gfc_undo_change_set
1960 {
1961 vec<gfc_symbol *> syms;
1962 vec<gfc_typebound_proc *> tbps;
1963 gfc_undo_change_set *previous;
1964 };
1965
1966
1967 /* This structure is used to keep track of symbols in common blocks. */
1968 typedef struct gfc_common_head
1969 {
1970 locus where;
1971 char use_assoc, saved, threadprivate;
1972 unsigned char omp_declare_target : 1;
1973 unsigned char omp_declare_target_link : 1;
1974 ENUM_BITFIELD (gfc_omp_device_type) omp_device_type:2;
1975 /* Provide sufficient space to hold "symbol.symbol.eq.1234567890". */
1976 char name[2*GFC_MAX_SYMBOL_LEN + 1 + 14 + 1];
1977 struct gfc_symbol *head;
1978 const char* binding_label;
1979 int is_bind_c;
1980 int refs;
1981 }
1982 gfc_common_head;
1983
1984 #define gfc_get_common_head() XCNEW (gfc_common_head)
1985
1986
1987 /* A list of all the alternate entry points for a procedure. */
1988
1989 typedef struct gfc_entry_list
1990 {
1991 /* The symbol for this entry point. */
1992 gfc_symbol *sym;
1993 /* The zero-based id of this entry point. */
1994 int id;
1995 /* The LABEL_EXPR marking this entry point. */
1996 tree label;
1997 /* The next item in the list. */
1998 struct gfc_entry_list *next;
1999 }
2000 gfc_entry_list;
2001
2002 #define gfc_get_entry_list() XCNEW (gfc_entry_list)
2003
2004 /* Lists of rename info for the USE statement. */
2005
2006 typedef struct gfc_use_rename
2007 {
2008 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
2009 struct gfc_use_rename *next;
2010 int found;
2011 gfc_intrinsic_op op;
2012 locus where;
2013 }
2014 gfc_use_rename;
2015
2016 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
2017
2018 /* A list of all USE statements in a namespace. */
2019
2020 typedef struct gfc_use_list
2021 {
2022 const char *module_name;
2023 const char *submodule_name;
2024 bool intrinsic;
2025 bool non_intrinsic;
2026 bool only_flag;
2027 struct gfc_use_rename *rename;
2028 locus where;
2029 /* Next USE statement. */
2030 struct gfc_use_list *next;
2031 }
2032 gfc_use_list;
2033
2034 #define gfc_get_use_list() XCNEW (gfc_use_list)
2035
2036 /* Within a namespace, symbols are pointed to by symtree nodes that
2037 are linked together in a balanced binary tree. There can be
2038 several symtrees pointing to the same symbol node via USE
2039 statements. */
2040
2041 typedef struct gfc_symtree
2042 {
2043 BBT_HEADER (gfc_symtree);
2044 const char *name;
2045 int ambiguous;
2046 union
2047 {
2048 gfc_symbol *sym; /* Symbol associated with this node */
2049 gfc_user_op *uop;
2050 gfc_common_head *common;
2051 gfc_typebound_proc *tb;
2052 gfc_omp_udr *omp_udr;
2053 }
2054 n;
2055 }
2056 gfc_symtree;
2057
2058 /* A list of all derived types. */
2059 extern gfc_symbol *gfc_derived_types;
2060
2061 typedef struct gfc_oacc_routine_name
2062 {
2063 struct gfc_symbol *sym;
2064 struct gfc_omp_clauses *clauses;
2065 struct gfc_oacc_routine_name *next;
2066 locus loc;
2067 }
2068 gfc_oacc_routine_name;
2069
2070 #define gfc_get_oacc_routine_name() XCNEW (gfc_oacc_routine_name)
2071
2072 /* Node in linked list to see what has already been finalized
2073 earlier. */
2074
2075 typedef struct gfc_was_finalized {
2076 gfc_expr *e;
2077 gfc_component *c;
2078 struct gfc_was_finalized *next;
2079 }
2080 gfc_was_finalized;
2081
2082 /* A namespace describes the contents of procedure, module, interface block
2083 or BLOCK construct. */
2084 /* ??? Anything else use these? */
2085
2086 typedef struct gfc_namespace
2087 {
2088 /* Tree containing all the symbols in this namespace. */
2089 gfc_symtree *sym_root;
2090 /* Tree containing all the user-defined operators in the namespace. */
2091 gfc_symtree *uop_root;
2092 /* Tree containing all the common blocks. */
2093 gfc_symtree *common_root;
2094 /* Tree containing all the OpenMP user defined reductions. */
2095 gfc_symtree *omp_udr_root;
2096
2097 /* Tree containing type-bound procedures. */
2098 gfc_symtree *tb_sym_root;
2099 /* Type-bound user operators. */
2100 gfc_symtree *tb_uop_root;
2101 /* For derived-types, store type-bound intrinsic operators here. */
2102 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
2103 /* Linked list of finalizer procedures. */
2104 struct gfc_finalizer *finalizers;
2105
2106 /* If set_flag[letter] is set, an implicit type has been set for letter. */
2107 int set_flag[GFC_LETTERS];
2108 /* Keeps track of the implicit types associated with the letters. */
2109 gfc_typespec default_type[GFC_LETTERS];
2110 /* Store the positions of IMPLICIT statements. */
2111 locus implicit_loc[GFC_LETTERS];
2112
2113 /* If this is a namespace of a procedure, this points to the procedure. */
2114 struct gfc_symbol *proc_name;
2115 /* If this is the namespace of a unit which contains executable
2116 code, this points to it. */
2117 struct gfc_code *code;
2118
2119 /* Points to the equivalences set up in this namespace. */
2120 struct gfc_equiv *equiv, *old_equiv;
2121
2122 /* Points to the equivalence groups produced by trans_common. */
2123 struct gfc_equiv_list *equiv_lists;
2124
2125 gfc_interface *op[GFC_INTRINSIC_OPS];
2126
2127 /* Points to the parent namespace, i.e. the namespace of a module or
2128 procedure in which the procedure belonging to this namespace is
2129 contained. The parent namespace points to this namespace either
2130 directly via CONTAINED, or indirectly via the chain built by
2131 SIBLING. */
2132 struct gfc_namespace *parent;
2133 /* CONTAINED points to the first contained namespace. Sibling
2134 namespaces are chained via SIBLING. */
2135 struct gfc_namespace *contained, *sibling;
2136
2137 gfc_common_head blank_common;
2138 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
2139
2140 gfc_st_label *st_labels;
2141 /* This list holds information about all the data initializers in
2142 this namespace. */
2143 struct gfc_data *data, *old_data;
2144
2145 /* !$ACC DECLARE. */
2146 gfc_oacc_declare *oacc_declare;
2147
2148 /* !$ACC ROUTINE clauses. */
2149 gfc_omp_clauses *oacc_routine_clauses;
2150
2151 /* !$ACC TASK AFFINITY iterator symbols. */
2152 gfc_symbol *omp_affinity_iterators;
2153
2154 /* !$ACC ROUTINE names. */
2155 gfc_oacc_routine_name *oacc_routine_names;
2156
2157 gfc_charlen *cl_list;
2158
2159 gfc_symbol *derived_types;
2160
2161 int save_all, seen_save, seen_implicit_none;
2162
2163 /* Normally we don't need to refcount namespaces. However when we read
2164 a module containing a function with multiple entry points, this
2165 will appear as several functions with the same formal namespace. */
2166 int refs;
2167
2168 /* A list of all alternate entry points to this procedure (or NULL). */
2169 gfc_entry_list *entries;
2170
2171 /* A list of USE statements in this namespace. */
2172 gfc_use_list *use_stmts;
2173
2174 /* Linked list of !$omp declare simd constructs. */
2175 struct gfc_omp_declare_simd *omp_declare_simd;
2176
2177 /* Linked list of !$omp declare variant constructs. */
2178 struct gfc_omp_declare_variant *omp_declare_variant;
2179
2180 /* OpenMP assumptions. */
2181 struct gfc_omp_assumptions *omp_assumes;
2182
2183 /* A hash set for the gfc expressions that have already
2184 been finalized in this namespace. */
2185
2186 gfc_was_finalized *was_finalized;
2187
2188 /* Set to 1 if namespace is a BLOCK DATA program unit. */
2189 unsigned is_block_data:1;
2190
2191 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
2192 unsigned has_import_set:1;
2193
2194 /* Set to 1 if the namespace uses "IMPLICT NONE (export)". */
2195 unsigned has_implicit_none_export:1;
2196
2197 /* Set to 1 if resolved has been called for this namespace.
2198 Holds -1 during resolution. */
2199 signed resolved:2;
2200
2201 /* Set when resolve_types has been called for this namespace. */
2202 unsigned types_resolved:1;
2203
2204 /* Set to 1 if code has been generated for this namespace. */
2205 unsigned translated:1;
2206
2207 /* Set to 1 if symbols in this namespace should be 'construct entities',
2208 i.e. for BLOCK local variables. */
2209 unsigned construct_entities:1;
2210
2211 /* Set to 1 for !$OMP DECLARE REDUCTION namespaces. */
2212 unsigned omp_udr_ns:1;
2213
2214 /* Set to 1 for !$ACC ROUTINE namespaces. */
2215 unsigned oacc_routine:1;
2216
2217 /* Set to 1 if there are any calls to procedures with implicit interface. */
2218 unsigned implicit_interface_calls:1;
2219
2220 /* OpenMP requires. */
2221 unsigned omp_requires:6;
2222 unsigned omp_target_seen:1;
2223 }
2224 gfc_namespace;
2225
2226 extern gfc_namespace *gfc_current_ns;
2227 extern gfc_namespace *gfc_global_ns_list;
2228
2229 /* Global symbols are symbols of global scope. Currently we only use
2230 this to detect collisions already when parsing.
2231 TODO: Extend to verify procedure calls. */
2232
2233 enum gfc_symbol_type
2234 {
2235 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
2236 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
2237 };
2238
2239 typedef struct gfc_gsymbol
2240 {
2241 BBT_HEADER(gfc_gsymbol);
2242
2243 const char *name;
2244 const char *sym_name;
2245 const char *mod_name;
2246 const char *binding_label;
2247 enum gfc_symbol_type type;
2248
2249 int defined, used;
2250 bool bind_c;
2251 locus where;
2252 gfc_namespace *ns;
2253 }
2254 gfc_gsymbol;
2255
2256 extern gfc_gsymbol *gfc_gsym_root;
2257
2258 /* Information on interfaces being built. */
2259 typedef struct
2260 {
2261 interface_type type;
2262 gfc_symbol *sym;
2263 gfc_namespace *ns;
2264 gfc_user_op *uop;
2265 gfc_intrinsic_op op;
2266 }
2267 gfc_interface_info;
2268
2269 extern gfc_interface_info current_interface;
2270
2271
2272 /* Array reference. */
2273
2274 enum gfc_array_ref_dimen_type
2275 {
2276 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_THIS_IMAGE, DIMEN_UNKNOWN
2277 };
2278
2279 typedef struct gfc_array_ref
2280 {
2281 ar_type type;
2282 int dimen; /* # of components in the reference */
2283 int codimen;
2284 bool in_allocate; /* For coarray checks. */
2285 gfc_expr *team;
2286 gfc_expr *stat;
2287 locus where;
2288 gfc_array_spec *as;
2289
2290 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
2291 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
2292 *stride[GFC_MAX_DIMENSIONS];
2293
2294 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
2295 }
2296 gfc_array_ref;
2297
2298 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
2299
2300
2301 /* Component reference nodes. A variable is stored as an expression
2302 node that points to the base symbol. After that, a singly linked
2303 list of component reference nodes gives the variable's complete
2304 resolution. The array_ref component may be present and comes
2305 before the component component. */
2306
2307 enum ref_type
2308 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING, REF_INQUIRY };
2309
2310 enum inquiry_type
2311 { INQUIRY_RE, INQUIRY_IM, INQUIRY_KIND, INQUIRY_LEN };
2312
2313 typedef struct gfc_ref
2314 {
2315 ref_type type;
2316
2317 union
2318 {
2319 struct gfc_array_ref ar;
2320
2321 struct
2322 {
2323 gfc_component *component;
2324 gfc_symbol *sym;
2325 }
2326 c;
2327
2328 struct
2329 {
2330 struct gfc_expr *start, *end; /* Substring */
2331 gfc_charlen *length;
2332 }
2333 ss;
2334
2335 inquiry_type i;
2336
2337 }
2338 u;
2339
2340 struct gfc_ref *next;
2341 }
2342 gfc_ref;
2343
2344 #define gfc_get_ref() XCNEW (gfc_ref)
2345
2346
2347 /* Structures representing intrinsic symbols and their arguments lists. */
2348 typedef struct gfc_intrinsic_arg
2349 {
2350 char name[GFC_MAX_SYMBOL_LEN + 1];
2351
2352 gfc_typespec ts;
2353 unsigned optional:1, value:1;
2354 ENUM_BITFIELD (sym_intent) intent:2;
2355
2356 struct gfc_intrinsic_arg *next;
2357 }
2358 gfc_intrinsic_arg;
2359
2360
2361 typedef enum {
2362 GFC_UNDEFINED_DUMMY_ARG = 0,
2363 GFC_INTRINSIC_DUMMY_ARG,
2364 GFC_NON_INTRINSIC_DUMMY_ARG
2365 }
2366 gfc_dummy_arg_intrinsicness;
2367
2368 /* dummy arg of either an intrinsic or a user-defined procedure. */
2369 struct gfc_dummy_arg
2370 {
2371 gfc_dummy_arg_intrinsicness intrinsicness;
2372
2373 union {
2374 gfc_intrinsic_arg *intrinsic;
2375 gfc_formal_arglist *non_intrinsic;
2376 } u;
2377 };
2378
2379 #define gfc_get_dummy_arg() XCNEW (gfc_dummy_arg)
2380
2381
2382 const char * gfc_dummy_arg_get_name (gfc_dummy_arg &);
2383 const gfc_typespec & gfc_dummy_arg_get_typespec (gfc_dummy_arg &);
2384 bool gfc_dummy_arg_is_optional (gfc_dummy_arg &);
2385
2386
2387 /* Specifies the various kinds of check functions used to verify the
2388 argument lists of intrinsic functions. fX with X an integer refer
2389 to check functions of intrinsics with X arguments. f1m is used for
2390 the MAX and MIN intrinsics which can have an arbitrary number of
2391 arguments, f4ml is used for the MINLOC and MAXLOC intrinsics as
2392 these have special semantics. */
2393
2394 typedef union
2395 {
2396 bool (*f0)(void);
2397 bool (*f1)(struct gfc_expr *);
2398 bool (*f1m)(gfc_actual_arglist *);
2399 bool (*f2)(struct gfc_expr *, struct gfc_expr *);
2400 bool (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2401 bool (*f5ml)(gfc_actual_arglist *);
2402 bool (*f6fl)(gfc_actual_arglist *);
2403 bool (*f3red)(gfc_actual_arglist *);
2404 bool (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2405 struct gfc_expr *);
2406 bool (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2407 struct gfc_expr *, struct gfc_expr *);
2408 }
2409 gfc_check_f;
2410
2411 /* Like gfc_check_f, these specify the type of the simplification
2412 function associated with an intrinsic. The fX are just like in
2413 gfc_check_f. cc is used for type conversion functions. */
2414
2415 typedef union
2416 {
2417 struct gfc_expr *(*f0)(void);
2418 struct gfc_expr *(*f1)(struct gfc_expr *);
2419 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
2420 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
2421 struct gfc_expr *);
2422 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
2423 struct gfc_expr *, struct gfc_expr *);
2424 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
2425 struct gfc_expr *, struct gfc_expr *,
2426 struct gfc_expr *);
2427 struct gfc_expr *(*f6)(struct gfc_expr *, struct gfc_expr *,
2428 struct gfc_expr *, struct gfc_expr *,
2429 struct gfc_expr *, struct gfc_expr *);
2430 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
2431 }
2432 gfc_simplify_f;
2433
2434 /* Again like gfc_check_f, these specify the type of the resolution
2435 function associated with an intrinsic. The fX are just like in
2436 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
2437
2438 typedef union
2439 {
2440 void (*f0)(struct gfc_expr *);
2441 void (*f1)(struct gfc_expr *, struct gfc_expr *);
2442 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
2443 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2444 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2445 struct gfc_expr *);
2446 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2447 struct gfc_expr *, struct gfc_expr *);
2448 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2449 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2450 void (*f6)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2451 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2452 struct gfc_expr *);
2453 void (*s1)(struct gfc_code *);
2454 }
2455 gfc_resolve_f;
2456
2457
2458 typedef struct gfc_intrinsic_sym
2459 {
2460 const char *name, *lib_name;
2461 gfc_intrinsic_arg *formal;
2462 gfc_typespec ts;
2463 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
2464 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1,
2465 from_module:1, vararg:1;
2466
2467 int standard;
2468
2469 gfc_simplify_f simplify;
2470 gfc_check_f check;
2471 gfc_resolve_f resolve;
2472 struct gfc_intrinsic_sym *specific_head, *next;
2473 gfc_isym_id id;
2474
2475 }
2476 gfc_intrinsic_sym;
2477
2478
2479 /* Expression nodes. The expression node types deserve explanations,
2480 since the last couple can be easily misconstrued:
2481
2482 EXPR_OP Operator node pointing to one or two other nodes
2483 EXPR_FUNCTION Function call, symbol points to function's name
2484 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
2485 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
2486 which expresses structure, array and substring refs.
2487 EXPR_NULL The NULL pointer value (which also has a basic type).
2488 EXPR_SUBSTRING A substring of a constant string
2489 EXPR_STRUCTURE A structure constructor
2490 EXPR_ARRAY An array constructor.
2491 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
2492 component or type-bound procedure. */
2493
2494 #include <mpfr.h>
2495 #include <mpc.h>
2496 #define GFC_RND_MODE MPFR_RNDN
2497 #define GFC_MPC_RND_MODE MPC_RNDNN
2498
2499 typedef splay_tree gfc_constructor_base;
2500
2501
2502 /* This should be an unsigned variable of type size_t. But to handle
2503 compiling to a 64-bit target from a 32-bit host, we need to use a
2504 HOST_WIDE_INT. Also, occasionally the string length field is used
2505 as a flag with values -1 and -2, see e.g. gfc_add_assign_aux_vars.
2506 So it needs to be signed. */
2507 typedef HOST_WIDE_INT gfc_charlen_t;
2508
2509 typedef struct gfc_expr
2510 {
2511 expr_t expr_type;
2512
2513 gfc_typespec ts; /* These two refer to the overall expression */
2514
2515 int rank; /* 0 indicates a scalar, -1 an assumed-rank array. */
2516 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
2517
2518 /* Nonnull for functions and structure constructors, may also used to hold the
2519 base-object for component calls. */
2520 gfc_symtree *symtree;
2521
2522 gfc_ref *ref;
2523
2524 locus where;
2525
2526 /* Used to store the base expression in component calls, when the expression
2527 is not a variable. */
2528 struct gfc_expr *base_expr;
2529
2530 /* is_snan denotes a signalling not-a-number. */
2531 unsigned int is_snan : 1;
2532
2533 /* Sometimes, when an error has been emitted, it is necessary to prevent
2534 it from recurring. */
2535 unsigned int error : 1;
2536
2537 /* Mark an expression where a user operator has been substituted by
2538 a function call in interface.cc(gfc_extend_expr). */
2539 unsigned int user_operator : 1;
2540
2541 /* Mark an expression as being a MOLD argument of ALLOCATE. */
2542 unsigned int mold : 1;
2543
2544 /* Will require finalization after use. */
2545 unsigned int must_finalize : 1;
2546
2547 /* Set this if no range check should be performed on this expression. */
2548
2549 unsigned int no_bounds_check : 1;
2550
2551 /* Set this if a matmul expression has already been evaluated for conversion
2552 to a BLAS call. */
2553
2554 unsigned int external_blas : 1;
2555
2556 /* Set this if resolution has already happened. It could be harmful
2557 if done again. */
2558
2559 unsigned int do_not_resolve_again : 1;
2560
2561 /* Set this if no warning should be given somewhere in a lower level. */
2562
2563 unsigned int do_not_warn : 1;
2564
2565 /* Set this if the expression came from expanding an array constructor. */
2566 unsigned int from_constructor : 1;
2567
2568 /* If an expression comes from a Hollerith constant or compile-time
2569 evaluation of a transfer statement, it may have a prescribed target-
2570 memory representation, and these cannot always be backformed from
2571 the value. */
2572 struct
2573 {
2574 gfc_charlen_t length;
2575 char *string;
2576 }
2577 representation;
2578
2579 struct
2580 {
2581 int len; /* Length of BOZ string without terminating NULL. */
2582 int rdx; /* Radix of BOZ. */
2583 char *str; /* BOZ string with NULL terminating character. */
2584 }
2585 boz;
2586
2587 union
2588 {
2589 int logical;
2590
2591 io_kind iokind;
2592
2593 mpz_t integer;
2594
2595 mpfr_t real;
2596
2597 mpc_t complex;
2598
2599 struct
2600 {
2601 gfc_intrinsic_op op;
2602 gfc_user_op *uop;
2603 struct gfc_expr *op1, *op2;
2604 }
2605 op;
2606
2607 struct
2608 {
2609 gfc_actual_arglist *actual;
2610 const char *name; /* Points to the ultimate name of the function */
2611 gfc_intrinsic_sym *isym;
2612 gfc_symbol *esym;
2613 }
2614 function;
2615
2616 struct
2617 {
2618 gfc_actual_arglist* actual;
2619 const char* name;
2620 /* Base-object, whose component was called. NULL means that it should
2621 be taken from symtree/ref. */
2622 struct gfc_expr* base_object;
2623 gfc_typebound_proc* tbp; /* Should overlap with esym. */
2624
2625 /* For type-bound operators, we want to call PASS procedures but already
2626 have the full arglist; mark this, so that it is not extended by the
2627 PASS argument. */
2628 unsigned ignore_pass:1;
2629
2630 /* Do assign-calls rather than calls, that is appropriate dependency
2631 checking. */
2632 unsigned assign:1;
2633 }
2634 compcall;
2635
2636 struct
2637 {
2638 gfc_charlen_t length;
2639 gfc_char_t *string;
2640 }
2641 character;
2642
2643 gfc_constructor_base constructor;
2644 }
2645 value;
2646
2647 /* Used to store PDT expression lists associated with expressions. */
2648 gfc_actual_arglist *param_list;
2649
2650 }
2651 gfc_expr;
2652
2653
2654 #define gfc_get_shape(rank) (XCNEWVEC (mpz_t, (rank)))
2655
2656 /* Structures for information associated with different kinds of
2657 numbers. The first set of integer parameters define all there is
2658 to know about a particular kind. The rest of the elements are
2659 computed from the first elements. */
2660
2661 typedef struct
2662 {
2663 /* Values really representable by the target. */
2664 mpz_t huge, pedantic_min_int, min_int;
2665
2666 int kind, radix, digits, bit_size, range;
2667
2668 /* True if the C type of the given name maps to this precision.
2669 Note that more than one bit can be set. */
2670 unsigned int c_char : 1;
2671 unsigned int c_short : 1;
2672 unsigned int c_int : 1;
2673 unsigned int c_long : 1;
2674 unsigned int c_long_long : 1;
2675 }
2676 gfc_integer_info;
2677
2678 extern gfc_integer_info gfc_integer_kinds[];
2679
2680
2681 typedef struct
2682 {
2683 int kind, bit_size;
2684
2685 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
2686 unsigned int c_bool : 1;
2687 }
2688 gfc_logical_info;
2689
2690 extern gfc_logical_info gfc_logical_kinds[];
2691
2692
2693 typedef struct
2694 {
2695 mpfr_t epsilon, huge, tiny, subnormal;
2696 int kind, abi_kind, radix, digits, min_exponent, max_exponent;
2697 int range, precision;
2698
2699 /* The precision of the type as reported by GET_MODE_PRECISION. */
2700 int mode_precision;
2701
2702 /* True if the C type of the given name maps to this precision.
2703 Note that more than one bit can be set. */
2704 unsigned int c_float : 1;
2705 unsigned int c_double : 1;
2706 unsigned int c_long_double : 1;
2707 unsigned int c_float128 : 1;
2708 /* True if for _Float128 C2X IEC 60559 *f128 APIs should be used
2709 instead of libquadmath *q APIs. */
2710 unsigned int use_iec_60559 : 1;
2711 }
2712 gfc_real_info;
2713
2714 extern gfc_real_info gfc_real_kinds[];
2715
2716 typedef struct
2717 {
2718 int kind, bit_size;
2719 const char *name;
2720 }
2721 gfc_character_info;
2722
2723 extern gfc_character_info gfc_character_kinds[];
2724
2725
2726 /* Equivalence structures. Equivalent lvalues are linked along the
2727 *eq pointer, equivalence sets are strung along the *next node. */
2728 typedef struct gfc_equiv
2729 {
2730 struct gfc_equiv *next, *eq;
2731 gfc_expr *expr;
2732 const char *module;
2733 int used;
2734 }
2735 gfc_equiv;
2736
2737 #define gfc_get_equiv() XCNEW (gfc_equiv)
2738
2739 /* Holds a single equivalence member after processing. */
2740 typedef struct gfc_equiv_info
2741 {
2742 gfc_symbol *sym;
2743 HOST_WIDE_INT offset;
2744 HOST_WIDE_INT length;
2745 struct gfc_equiv_info *next;
2746 } gfc_equiv_info;
2747
2748 /* Holds equivalence groups, after they have been processed. */
2749 typedef struct gfc_equiv_list
2750 {
2751 gfc_equiv_info *equiv;
2752 struct gfc_equiv_list *next;
2753 } gfc_equiv_list;
2754
2755 /* gfc_case stores the selector list of a case statement. The *low
2756 and *high pointers can point to the same expression in the case of
2757 a single value. If *high is NULL, the selection is from *low
2758 upwards, if *low is NULL the selection is *high downwards.
2759
2760 This structure has separate fields to allow single and double linked
2761 lists of CASEs at the same time. The singe linked list along the NEXT
2762 field is a list of cases for a single CASE label. The double linked
2763 list along the LEFT/RIGHT fields is used to detect overlap and to
2764 build a table of the cases for SELECT constructs with a CHARACTER
2765 case expression. */
2766
2767 typedef struct gfc_case
2768 {
2769 /* Where we saw this case. */
2770 locus where;
2771 int n;
2772
2773 /* Case range values. If (low == high), it's a single value. If one of
2774 the labels is NULL, it's an unbounded case. If both are NULL, this
2775 represents the default case. */
2776 gfc_expr *low, *high;
2777
2778 /* Only used for SELECT TYPE. */
2779 gfc_typespec ts;
2780
2781 /* Next case label in the list of cases for a single CASE label. */
2782 struct gfc_case *next;
2783
2784 /* Used for detecting overlap, and for code generation. */
2785 struct gfc_case *left, *right;
2786
2787 /* True if this case label can never be matched. */
2788 int unreachable;
2789 }
2790 gfc_case;
2791
2792 #define gfc_get_case() XCNEW (gfc_case)
2793
2794
2795 typedef struct
2796 {
2797 gfc_expr *var, *start, *end, *step;
2798 unsigned short unroll;
2799 bool ivdep;
2800 bool vector;
2801 bool novector;
2802 }
2803 gfc_iterator;
2804
2805 #define gfc_get_iterator() XCNEW (gfc_iterator)
2806
2807
2808 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
2809
2810 typedef struct gfc_alloc
2811 {
2812 gfc_expr *expr;
2813 struct gfc_alloc *next;
2814 }
2815 gfc_alloc;
2816
2817 #define gfc_get_alloc() XCNEW (gfc_alloc)
2818
2819
2820 typedef struct
2821 {
2822 gfc_expr *unit, *file, *status, *access, *form, *recl,
2823 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
2824 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit,
2825 *share, *cc;
2826 char readonly;
2827 gfc_st_label *err;
2828 }
2829 gfc_open;
2830
2831
2832 typedef struct
2833 {
2834 gfc_expr *unit, *status, *iostat, *iomsg;
2835 gfc_st_label *err;
2836 }
2837 gfc_close;
2838
2839
2840 typedef struct
2841 {
2842 gfc_expr *unit, *iostat, *iomsg;
2843 gfc_st_label *err;
2844 }
2845 gfc_filepos;
2846
2847
2848 typedef struct
2849 {
2850 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
2851 *name, *access, *sequential, *direct, *form, *formatted,
2852 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
2853 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
2854 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id,
2855 *iqstream, *share, *cc;
2856
2857 gfc_st_label *err;
2858
2859 }
2860 gfc_inquire;
2861
2862
2863 typedef struct
2864 {
2865 gfc_expr *unit, *iostat, *iomsg, *id;
2866 gfc_st_label *err, *end, *eor;
2867 }
2868 gfc_wait;
2869
2870
2871 typedef struct
2872 {
2873 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
2874 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
2875 *sign, *extra_comma, *dt_io_kind, *udtio;
2876 char dec_ext;
2877
2878 gfc_symbol *namelist;
2879 /* A format_label of `format_asterisk' indicates the "*" format */
2880 gfc_st_label *format_label;
2881 gfc_st_label *err, *end, *eor;
2882
2883 locus eor_where, end_where, err_where;
2884 }
2885 gfc_dt;
2886
2887
2888 typedef struct gfc_forall_iterator
2889 {
2890 gfc_expr *var, *start, *end, *stride;
2891 struct gfc_forall_iterator *next;
2892 }
2893 gfc_forall_iterator;
2894
2895
2896 /* Linked list to store associations in an ASSOCIATE statement. */
2897
2898 typedef struct gfc_association_list
2899 {
2900 struct gfc_association_list *next;
2901
2902 /* Whether this is association to a variable that can be changed; otherwise,
2903 it's association to an expression and the name may not be used as
2904 lvalue. */
2905 unsigned variable:1;
2906
2907 /* True if this struct is currently only linked to from a gfc_symbol rather
2908 than as part of a real list in gfc_code->ext.block.assoc. This may
2909 happen for SELECT TYPE temporaries and must be considered
2910 for memory handling. */
2911 unsigned dangling:1;
2912
2913 /* True when the rank of the target expression is guessed during parsing. */
2914 unsigned rankguessed:1;
2915
2916 char name[GFC_MAX_SYMBOL_LEN + 1];
2917 gfc_symtree *st; /* Symtree corresponding to name. */
2918 locus where;
2919
2920 gfc_expr *target;
2921 }
2922 gfc_association_list;
2923 #define gfc_get_association_list() XCNEW (gfc_association_list)
2924
2925
2926 /* Executable statements that fill gfc_code structures. */
2927 enum gfc_exec_op
2928 {
2929 EXEC_NOP = 1, EXEC_END_NESTED_BLOCK, EXEC_END_BLOCK, EXEC_ASSIGN,
2930 EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2931 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2932 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2933 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_CONCURRENT, EXEC_DO_WHILE,
2934 EXEC_SELECT, EXEC_BLOCK, EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
2935 EXEC_CALL_PPC, EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE,
2936 EXEC_SELECT_TYPE, EXEC_SELECT_RANK, EXEC_SYNC_ALL, EXEC_SYNC_MEMORY,
2937 EXEC_SYNC_IMAGES, EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2938 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2939 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2940 EXEC_FORM_TEAM, EXEC_CHANGE_TEAM, EXEC_END_TEAM, EXEC_SYNC_TEAM,
2941 EXEC_LOCK, EXEC_UNLOCK, EXEC_EVENT_POST, EXEC_EVENT_WAIT, EXEC_FAIL_IMAGE,
2942 EXEC_OACC_KERNELS_LOOP, EXEC_OACC_PARALLEL_LOOP, EXEC_OACC_SERIAL_LOOP,
2943 EXEC_OACC_ROUTINE, EXEC_OACC_PARALLEL, EXEC_OACC_KERNELS, EXEC_OACC_SERIAL,
2944 EXEC_OACC_DATA, EXEC_OACC_HOST_DATA, EXEC_OACC_LOOP, EXEC_OACC_UPDATE,
2945 EXEC_OACC_WAIT, EXEC_OACC_CACHE, EXEC_OACC_ENTER_DATA, EXEC_OACC_EXIT_DATA,
2946 EXEC_OACC_ATOMIC, EXEC_OACC_DECLARE,
2947 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2948 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2949 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2950 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2951 EXEC_OMP_ASSUME, EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2952 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT,
2953 EXEC_OMP_TASKYIELD, EXEC_OMP_CANCEL, EXEC_OMP_CANCELLATION_POINT,
2954 EXEC_OMP_TASKGROUP, EXEC_OMP_SIMD, EXEC_OMP_DO_SIMD,
2955 EXEC_OMP_PARALLEL_DO_SIMD, EXEC_OMP_TARGET, EXEC_OMP_TARGET_DATA,
2956 EXEC_OMP_TEAMS, EXEC_OMP_DISTRIBUTE, EXEC_OMP_DISTRIBUTE_SIMD,
2957 EXEC_OMP_DISTRIBUTE_PARALLEL_DO, EXEC_OMP_DISTRIBUTE_PARALLEL_DO_SIMD,
2958 EXEC_OMP_TARGET_TEAMS, EXEC_OMP_TEAMS_DISTRIBUTE,
2959 EXEC_OMP_TEAMS_DISTRIBUTE_SIMD, EXEC_OMP_TARGET_TEAMS_DISTRIBUTE,
2960 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD,
2961 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO,
2962 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
2963 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
2964 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
2965 EXEC_OMP_TARGET_UPDATE, EXEC_OMP_END_CRITICAL,
2966 EXEC_OMP_TARGET_ENTER_DATA, EXEC_OMP_TARGET_EXIT_DATA,
2967 EXEC_OMP_TARGET_PARALLEL, EXEC_OMP_TARGET_PARALLEL_DO,
2968 EXEC_OMP_TARGET_PARALLEL_DO_SIMD, EXEC_OMP_TARGET_SIMD,
2969 EXEC_OMP_TASKLOOP, EXEC_OMP_TASKLOOP_SIMD, EXEC_OMP_SCAN, EXEC_OMP_DEPOBJ,
2970 EXEC_OMP_PARALLEL_MASTER, EXEC_OMP_PARALLEL_MASTER_TASKLOOP,
2971 EXEC_OMP_PARALLEL_MASTER_TASKLOOP_SIMD, EXEC_OMP_MASTER_TASKLOOP,
2972 EXEC_OMP_MASTER_TASKLOOP_SIMD, EXEC_OMP_LOOP, EXEC_OMP_PARALLEL_LOOP,
2973 EXEC_OMP_TEAMS_LOOP, EXEC_OMP_TARGET_PARALLEL_LOOP,
2974 EXEC_OMP_TARGET_TEAMS_LOOP, EXEC_OMP_MASKED, EXEC_OMP_PARALLEL_MASKED,
2975 EXEC_OMP_PARALLEL_MASKED_TASKLOOP, EXEC_OMP_PARALLEL_MASKED_TASKLOOP_SIMD,
2976 EXEC_OMP_MASKED_TASKLOOP, EXEC_OMP_MASKED_TASKLOOP_SIMD, EXEC_OMP_SCOPE,
2977 EXEC_OMP_ERROR
2978 };
2979
2980 typedef struct gfc_code
2981 {
2982 gfc_exec_op op;
2983
2984 struct gfc_code *block, *next;
2985 locus loc;
2986
2987 gfc_st_label *here, *label1, *label2, *label3;
2988 gfc_symtree *symtree;
2989 gfc_expr *expr1, *expr2, *expr3, *expr4;
2990 /* A name isn't sufficient to identify a subroutine, we need the actual
2991 symbol for the interface definition.
2992 const char *sub_name; */
2993 gfc_symbol *resolved_sym;
2994 gfc_intrinsic_sym *resolved_isym;
2995
2996 union
2997 {
2998 gfc_actual_arglist *actual;
2999 gfc_iterator *iterator;
3000
3001 struct
3002 {
3003 gfc_typespec ts;
3004 gfc_alloc *list;
3005 /* Take the array specification from expr3 to allocate arrays
3006 without an explicit array specification. */
3007 unsigned arr_spec_from_expr3:1;
3008 /* expr3 is not explicit */
3009 unsigned expr3_not_explicit:1;
3010 }
3011 alloc;
3012
3013 struct
3014 {
3015 gfc_namespace *ns;
3016 gfc_association_list *assoc;
3017 gfc_case *case_list;
3018 }
3019 block;
3020
3021 gfc_open *open;
3022 gfc_close *close;
3023 gfc_filepos *filepos;
3024 gfc_inquire *inquire;
3025 gfc_wait *wait;
3026 gfc_dt *dt;
3027 gfc_forall_iterator *forall_iterator;
3028 struct gfc_code *which_construct;
3029 int stop_code;
3030 gfc_entry_list *entry;
3031 gfc_oacc_declare *oacc_declare;
3032 gfc_omp_clauses *omp_clauses;
3033 const char *omp_name;
3034 gfc_omp_namelist *omp_namelist;
3035 bool omp_bool;
3036 }
3037 ext; /* Points to additional structures required by statement */
3038
3039 /* Cycle and break labels in constructs. */
3040 tree cycle_label;
3041 tree exit_label;
3042 }
3043 gfc_code;
3044
3045
3046 /* Storage for DATA statements. */
3047 typedef struct gfc_data_variable
3048 {
3049 gfc_expr *expr;
3050 gfc_iterator iter;
3051 struct gfc_data_variable *list, *next;
3052 }
3053 gfc_data_variable;
3054
3055
3056 typedef struct gfc_data_value
3057 {
3058 mpz_t repeat;
3059 gfc_expr *expr;
3060 struct gfc_data_value *next;
3061 }
3062 gfc_data_value;
3063
3064
3065 typedef struct gfc_data
3066 {
3067 gfc_data_variable *var;
3068 gfc_data_value *value;
3069 locus where;
3070
3071 struct gfc_data *next;
3072 }
3073 gfc_data;
3074
3075
3076 /* Structure for holding compile options */
3077 typedef struct
3078 {
3079 char *module_dir;
3080 gfc_source_form source_form;
3081 int max_continue_fixed;
3082 int max_continue_free;
3083 int max_identifier_length;
3084
3085 int max_errors;
3086
3087 int flag_preprocessed;
3088 int flag_d_lines;
3089 int flag_init_integer;
3090 long flag_init_integer_value;
3091 int flag_init_logical;
3092 int flag_init_character;
3093 char flag_init_character_value;
3094
3095 int fpe;
3096 int fpe_summary;
3097 int rtcheck;
3098
3099 int warn_std;
3100 int allow_std;
3101 }
3102 gfc_option_t;
3103
3104 extern gfc_option_t gfc_option;
3105
3106 /* Constructor nodes for array and structure constructors. */
3107 typedef struct gfc_constructor
3108 {
3109 gfc_constructor_base base;
3110 mpz_t offset; /* Offset within a constructor, used as
3111 key within base. */
3112
3113 gfc_expr *expr;
3114 gfc_iterator *iterator;
3115 locus where;
3116
3117 union
3118 {
3119 gfc_component *component; /* Record the component being initialized. */
3120 }
3121 n;
3122 mpz_t repeat; /* Record the repeat number of initial values in data
3123 statement like "data a/5*10/". */
3124 }
3125 gfc_constructor;
3126
3127
3128 typedef struct iterator_stack
3129 {
3130 gfc_symtree *variable;
3131 mpz_t value;
3132 struct iterator_stack *prev;
3133 }
3134 iterator_stack;
3135 extern iterator_stack *iter_stack;
3136
3137
3138 /* Used for (possibly nested) SELECT TYPE statements. */
3139 typedef struct gfc_select_type_stack
3140 {
3141 gfc_symbol *selector; /* Current selector variable. */
3142 gfc_symtree *tmp; /* Current temporary variable. */
3143 struct gfc_select_type_stack *prev; /* Previous element on stack. */
3144 }
3145 gfc_select_type_stack;
3146 extern gfc_select_type_stack *select_type_stack;
3147 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
3148
3149
3150 /* Node in the linked list used for storing finalizer procedures. */
3151
3152 typedef struct gfc_finalizer
3153 {
3154 struct gfc_finalizer* next;
3155 locus where; /* Where the FINAL declaration occurred. */
3156
3157 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
3158 symtree and later need only that. This way, we can access and call the
3159 finalizers from every context as they should be "always accessible". I
3160 don't make this a union because we need the information whether proc_sym is
3161 still referenced or not for dereferencing it on deleting a gfc_finalizer
3162 structure. */
3163 gfc_symbol* proc_sym;
3164 gfc_symtree* proc_tree;
3165 }
3166 gfc_finalizer;
3167 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
3168
3169
3170 /************************ Function prototypes *************************/
3171
3172 /* decl.cc */
3173 bool gfc_in_match_data (void);
3174 match gfc_match_char_spec (gfc_typespec *);
3175 extern int directive_unroll;
3176 extern bool directive_ivdep;
3177 extern bool directive_vector;
3178 extern bool directive_novector;
3179
3180 /* SIMD clause enum. */
3181 enum gfc_simd_clause
3182 {
3183 SIMD_NONE = (1 << 0),
3184 SIMD_INBRANCH = (1 << 1),
3185 SIMD_NOTINBRANCH = (1 << 2)
3186 };
3187
3188 /* Tuple for parsing of vectorized built-ins. */
3189 struct gfc_vect_builtin_tuple
3190 {
3191 gfc_vect_builtin_tuple (const char *n, gfc_simd_clause t)
3192 : name (n), simd_type (t) {}
3193
3194 const char *name;
3195 gfc_simd_clause simd_type;
3196 };
3197
3198 /* Map of middle-end built-ins that should be vectorized. */
3199 extern hash_map<nofree_string_hash, int> *gfc_vectorized_builtins;
3200
3201 /* Handling Parameterized Derived Types */
3202 bool gfc_insert_parameter_exprs (gfc_expr *, gfc_actual_arglist *);
3203 match gfc_get_pdt_instance (gfc_actual_arglist *, gfc_symbol **,
3204 gfc_actual_arglist **);
3205
3206
3207 /* Given a symbol, test whether it is a module procedure in a submodule */
3208 #define gfc_submodule_procedure(attr) \
3209 (gfc_state_stack->previous && gfc_state_stack->previous->previous \
3210 && gfc_state_stack->previous->previous->state == COMP_SUBMODULE \
3211 && attr->module_procedure)
3212
3213 /* scanner.cc */
3214 void gfc_scanner_done_1 (void);
3215 void gfc_scanner_init_1 (void);
3216
3217 void gfc_add_include_path (const char *, bool, bool, bool, bool);
3218 void gfc_add_intrinsic_modules_path (const char *);
3219 void gfc_release_include_path (void);
3220 void gfc_check_include_dirs (bool);
3221 FILE *gfc_open_included_file (const char *, bool, bool);
3222
3223 int gfc_at_end (void);
3224 int gfc_at_eof (void);
3225 int gfc_at_bol (void);
3226 int gfc_at_eol (void);
3227 void gfc_advance_line (void);
3228 int gfc_define_undef_line (void);
3229
3230 int gfc_wide_is_printable (gfc_char_t);
3231 int gfc_wide_is_digit (gfc_char_t);
3232 int gfc_wide_fits_in_byte (gfc_char_t);
3233 gfc_char_t gfc_wide_tolower (gfc_char_t);
3234 gfc_char_t gfc_wide_toupper (gfc_char_t);
3235 size_t gfc_wide_strlen (const gfc_char_t *);
3236 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
3237 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
3238 char *gfc_widechar_to_char (const gfc_char_t *, int);
3239 gfc_char_t *gfc_char_to_widechar (const char *);
3240
3241 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
3242
3243 void gfc_skip_comments (void);
3244 gfc_char_t gfc_next_char_literal (gfc_instring);
3245 gfc_char_t gfc_next_char (void);
3246 char gfc_next_ascii_char (void);
3247 gfc_char_t gfc_peek_char (void);
3248 char gfc_peek_ascii_char (void);
3249 void gfc_error_recovery (void);
3250 void gfc_gobble_whitespace (void);
3251 void gfc_new_file (void);
3252 const char * gfc_read_orig_filename (const char *, const char **);
3253
3254 extern gfc_source_form gfc_current_form;
3255 extern const char *gfc_source_file;
3256 extern locus gfc_current_locus;
3257
3258 void gfc_start_source_files (void);
3259 void gfc_end_source_files (void);
3260
3261 /* misc.cc */
3262 void gfc_clear_ts (gfc_typespec *);
3263 FILE *gfc_open_file (const char *);
3264 const char *gfc_basic_typename (bt);
3265 const char *gfc_dummy_typename (gfc_typespec *);
3266 const char *gfc_typename (gfc_typespec *, bool for_hash = false);
3267 const char *gfc_typename (gfc_expr *);
3268 const char *gfc_op2string (gfc_intrinsic_op);
3269 const char *gfc_code2string (const mstring *, int);
3270 int gfc_string2code (const mstring *, const char *);
3271 const char *gfc_intent_string (sym_intent);
3272
3273 void gfc_init_1 (void);
3274 void gfc_init_2 (void);
3275 void gfc_done_1 (void);
3276 void gfc_done_2 (void);
3277
3278 int get_c_kind (const char *, CInteropKind_t *);
3279
3280 const char *gfc_closest_fuzzy_match (const char *, char **);
3281 inline void
3282 vec_push (char **&optr, size_t &osz, const char *elt)
3283 {
3284 /* {auto,}vec.safe_push () replacement. Don't ask.. */
3285 // if (strlen (elt) < 4) return; premature optimization: eliminated by cutoff
3286 optr = XRESIZEVEC (char *, optr, osz + 2);
3287 optr[osz] = CONST_CAST (char *, elt);
3288 optr[++osz] = NULL;
3289 }
3290
3291 HOST_WIDE_INT gfc_mpz_get_hwi (mpz_t);
3292 void gfc_mpz_set_hwi (mpz_t, const HOST_WIDE_INT);
3293
3294 /* options.cc */
3295 unsigned int gfc_option_lang_mask (void);
3296 void gfc_init_options_struct (struct gcc_options *);
3297 void gfc_init_options (unsigned int,
3298 struct cl_decoded_option *);
3299 bool gfc_handle_option (size_t, const char *, HOST_WIDE_INT, int, location_t,
3300 const struct cl_option_handlers *);
3301 bool gfc_post_options (const char **);
3302 char *gfc_get_option_string (void);
3303
3304 /* f95-lang.cc */
3305 void gfc_maybe_initialize_eh (void);
3306
3307 /* iresolve.cc */
3308 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
3309 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
3310
3311 /* error.cc */
3312 void gfc_error_init_1 (void);
3313 void gfc_diagnostics_init (void);
3314 void gfc_diagnostics_finish (void);
3315 void gfc_buffer_error (bool);
3316
3317 const char *gfc_print_wide_char (gfc_char_t);
3318
3319 bool gfc_warning (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3320 bool gfc_warning_now (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3321 bool gfc_warning_internal (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3322 bool gfc_warning_now_at (location_t loc, int opt, const char *gmsgid, ...)
3323 ATTRIBUTE_GCC_GFC(3,4);
3324
3325 void gfc_clear_warning (void);
3326 void gfc_warning_check (void);
3327
3328 void gfc_error_opt (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3329 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
3330 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
3331 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
3332 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
3333 void gfc_clear_error (void);
3334 bool gfc_error_check (void);
3335 bool gfc_error_flag_test (void);
3336 bool gfc_buffered_p (void);
3337
3338 notification gfc_notification_std (int);
3339 bool gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
3340
3341 /* A general purpose syntax error. */
3342 #define gfc_syntax_error(ST) \
3343 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
3344
3345 #include "pretty-print.h" /* For output_buffer. */
3346 struct gfc_error_buffer
3347 {
3348 bool flag;
3349 output_buffer buffer;
3350 gfc_error_buffer(void) : flag(false), buffer() {}
3351 };
3352
3353 void gfc_push_error (gfc_error_buffer *);
3354 void gfc_pop_error (gfc_error_buffer *);
3355 void gfc_free_error (gfc_error_buffer *);
3356
3357 void gfc_get_errors (int *, int *);
3358 void gfc_errors_to_warnings (bool);
3359
3360 /* arith.cc */
3361 void gfc_arith_init_1 (void);
3362 void gfc_arith_done_1 (void);
3363 arith gfc_check_integer_range (mpz_t p, int kind);
3364 bool gfc_check_character_range (gfc_char_t, int);
3365
3366 extern bool gfc_seen_div0;
3367
3368 /* trans-types.cc */
3369 int gfc_validate_kind (bt, int, bool);
3370 int gfc_get_int_kind_from_width_isofortranenv (int size);
3371 int gfc_get_real_kind_from_width_isofortranenv (int size);
3372 tree gfc_get_union_type (gfc_symbol *);
3373 tree gfc_get_derived_type (gfc_symbol * derived, int codimen = 0);
3374 extern int gfc_index_integer_kind;
3375 extern int gfc_default_integer_kind;
3376 extern int gfc_max_integer_kind;
3377 extern int gfc_default_real_kind;
3378 extern int gfc_default_double_kind;
3379 extern int gfc_default_character_kind;
3380 extern int gfc_default_logical_kind;
3381 extern int gfc_default_complex_kind;
3382 extern int gfc_c_int_kind;
3383 extern int gfc_c_intptr_kind;
3384 extern int gfc_atomic_int_kind;
3385 extern int gfc_atomic_logical_kind;
3386 extern int gfc_intio_kind;
3387 extern int gfc_charlen_int_kind;
3388 extern int gfc_size_kind;
3389 extern int gfc_numeric_storage_size;
3390 extern int gfc_character_storage_size;
3391
3392 #define gfc_logical_4_kind 4
3393 #define gfc_integer_4_kind 4
3394 #define gfc_real_4_kind 4
3395
3396 /* symbol.cc */
3397 void gfc_clear_new_implicit (void);
3398 bool gfc_add_new_implicit_range (int, int);
3399 bool gfc_merge_new_implicit (gfc_typespec *);
3400 void gfc_set_implicit_none (bool, bool, locus *);
3401 void gfc_check_function_type (gfc_namespace *);
3402 bool gfc_is_intrinsic_typename (const char *);
3403 bool gfc_check_conflict (symbol_attribute *, const char *, locus *);
3404
3405 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
3406 bool gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
3407
3408 void gfc_set_sym_referenced (gfc_symbol *);
3409
3410 bool gfc_add_attribute (symbol_attribute *, locus *);
3411 bool gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
3412 bool gfc_add_allocatable (symbol_attribute *, locus *);
3413 bool gfc_add_codimension (symbol_attribute *, const char *, locus *);
3414 bool gfc_add_contiguous (symbol_attribute *, const char *, locus *);
3415 bool gfc_add_dimension (symbol_attribute *, const char *, locus *);
3416 bool gfc_add_external (symbol_attribute *, locus *);
3417 bool gfc_add_intrinsic (symbol_attribute *, locus *);
3418 bool gfc_add_optional (symbol_attribute *, locus *);
3419 bool gfc_add_kind (symbol_attribute *, locus *);
3420 bool gfc_add_len (symbol_attribute *, locus *);
3421 bool gfc_add_pointer (symbol_attribute *, locus *);
3422 bool gfc_add_cray_pointer (symbol_attribute *, locus *);
3423 bool gfc_add_cray_pointee (symbol_attribute *, locus *);
3424 match gfc_mod_pointee_as (gfc_array_spec *);
3425 bool gfc_add_protected (symbol_attribute *, const char *, locus *);
3426 bool gfc_add_result (symbol_attribute *, const char *, locus *);
3427 bool gfc_add_automatic (symbol_attribute *, const char *, locus *);
3428 bool gfc_add_save (symbol_attribute *, save_state, const char *, locus *);
3429 bool gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
3430 bool gfc_add_omp_declare_target (symbol_attribute *, const char *, locus *);
3431 bool gfc_add_omp_declare_target_link (symbol_attribute *, const char *,
3432 locus *);
3433 bool gfc_add_target (symbol_attribute *, locus *);
3434 bool gfc_add_dummy (symbol_attribute *, const char *, locus *);
3435 bool gfc_add_generic (symbol_attribute *, const char *, locus *);
3436 bool gfc_add_in_common (symbol_attribute *, const char *, locus *);
3437 bool gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
3438 bool gfc_add_data (symbol_attribute *, const char *, locus *);
3439 bool gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
3440 bool gfc_add_sequence (symbol_attribute *, const char *, locus *);
3441 bool gfc_add_elemental (symbol_attribute *, locus *);
3442 bool gfc_add_pure (symbol_attribute *, locus *);
3443 bool gfc_add_recursive (symbol_attribute *, locus *);
3444 bool gfc_add_function (symbol_attribute *, const char *, locus *);
3445 bool gfc_add_subroutine (symbol_attribute *, const char *, locus *);
3446 bool gfc_add_volatile (symbol_attribute *, const char *, locus *);
3447 bool gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
3448 bool gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
3449 bool gfc_add_abstract (symbol_attribute* attr, locus* where);
3450
3451 bool gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
3452 bool gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
3453 bool gfc_add_extension (symbol_attribute *, locus *);
3454 bool gfc_add_value (symbol_attribute *, const char *, locus *);
3455 bool gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
3456 bool gfc_add_entry (symbol_attribute *, const char *, locus *);
3457 bool gfc_add_procedure (symbol_attribute *, procedure_type,
3458 const char *, locus *);
3459 bool gfc_add_intent (symbol_attribute *, sym_intent, locus *);
3460 bool gfc_add_explicit_interface (gfc_symbol *, ifsrc,
3461 gfc_formal_arglist *, locus *);
3462 bool gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
3463
3464 void gfc_clear_attr (symbol_attribute *);
3465 bool gfc_missing_attr (symbol_attribute *, locus *);
3466 bool gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
3467 int gfc_copy_dummy_sym (gfc_symbol **, gfc_symbol *, int);
3468 bool gfc_add_component (gfc_symbol *, const char *, gfc_component **);
3469 gfc_symbol *gfc_use_derived (gfc_symbol *);
3470 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool,
3471 gfc_ref **);
3472
3473 gfc_st_label *gfc_get_st_label (int);
3474 void gfc_free_st_label (gfc_st_label *);
3475 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
3476 bool gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
3477
3478 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
3479 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
3480 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
3481 void gfc_delete_symtree (gfc_symtree **, const char *);
3482 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
3483 gfc_user_op *gfc_get_uop (const char *);
3484 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
3485 void gfc_free_symbol (gfc_symbol *&);
3486 void gfc_release_symbol (gfc_symbol *&);
3487 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
3488 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *);
3489 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
3490 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
3491 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
3492 bool gfc_verify_c_interop (gfc_typespec *);
3493 bool gfc_verify_c_interop_param (gfc_symbol *);
3494 bool verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
3495 bool verify_bind_c_derived_type (gfc_symbol *);
3496 bool verify_com_block_vars_c_interop (gfc_common_head *);
3497 gfc_symtree *generate_isocbinding_symbol (const char *, iso_c_binding_symbol,
3498 const char *, gfc_symtree *, bool);
3499 void gfc_save_symbol_data (gfc_symbol *);
3500 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
3501 int gfc_get_ha_symbol (const char *, gfc_symbol **);
3502 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
3503
3504 void gfc_drop_last_undo_checkpoint (void);
3505 void gfc_restore_last_undo_checkpoint (void);
3506 void gfc_undo_symbols (void);
3507 void gfc_commit_symbols (void);
3508 void gfc_commit_symbol (gfc_symbol *);
3509 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
3510 void gfc_free_namespace (gfc_namespace *&);
3511
3512 void gfc_symbol_init_2 (void);
3513 void gfc_symbol_done_2 (void);
3514
3515 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
3516 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
3517 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
3518 void gfc_save_all (gfc_namespace *);
3519
3520 void gfc_enforce_clean_symbol_state (void);
3521
3522 gfc_gsymbol *gfc_get_gsymbol (const char *, bool bind_c);
3523 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
3524 gfc_gsymbol *gfc_find_case_gsymbol (gfc_gsymbol *, const char *);
3525 void gfc_traverse_gsymbol (gfc_gsymbol *, void (*)(gfc_gsymbol *, void *), void *);
3526
3527 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
3528 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
3529 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
3530 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
3531
3532 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *,
3533 gfc_actual_arglist *, bool copy_type = false);
3534
3535 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.cc, too */
3536
3537 bool gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
3538 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*);
3539
3540 bool gfc_is_associate_pointer (gfc_symbol*);
3541 gfc_symbol * gfc_find_dt_in_generic (gfc_symbol *);
3542 gfc_formal_arglist *gfc_sym_get_dummy_args (gfc_symbol *);
3543
3544 /* intrinsic.cc -- true if working in an init-expr, false otherwise. */
3545 extern bool gfc_init_expr_flag;
3546
3547 /* Given a symbol that we have decided is intrinsic, mark it as such
3548 by placing it into a special module that is otherwise impossible to
3549 read or write. */
3550
3551 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
3552
3553 void gfc_intrinsic_init_1 (void);
3554 void gfc_intrinsic_done_1 (void);
3555
3556 char gfc_type_letter (bt, bool logical_equals_int = false);
3557 int gfc_type_abi_kind (bt, int);
3558 inline int
3559 gfc_type_abi_kind (gfc_typespec *ts)
3560 {
3561 return gfc_type_abi_kind (ts->type, ts->kind);
3562 }
3563 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
3564 gfc_symbol *gfc_get_intrinsic_function_symbol (gfc_expr *);
3565 gfc_symbol *gfc_find_intrinsic_symbol (gfc_expr *);
3566 bool gfc_convert_type (gfc_expr *, gfc_typespec *, int);
3567 bool gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int,
3568 bool array = false);
3569 bool gfc_convert_chartype (gfc_expr *, gfc_typespec *);
3570 int gfc_generic_intrinsic (const char *);
3571 int gfc_specific_intrinsic (const char *);
3572 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
3573 int gfc_intrinsic_actual_ok (const char *, const bool);
3574 gfc_intrinsic_sym *gfc_find_function (const char *);
3575 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
3576 gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id);
3577 gfc_intrinsic_sym *gfc_intrinsic_subroutine_by_id (gfc_isym_id);
3578 gfc_isym_id gfc_isym_id_by_intmod (intmod_id, int);
3579 gfc_isym_id gfc_isym_id_by_intmod_sym (gfc_symbol *);
3580
3581
3582 match gfc_intrinsic_func_interface (gfc_expr *, int);
3583 match gfc_intrinsic_sub_interface (gfc_code *, int);
3584
3585 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
3586 bool gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
3587 bool, locus);
3588
3589 /* match.cc -- FIXME */
3590 void gfc_free_iterator (gfc_iterator *, int);
3591 void gfc_free_forall_iterator (gfc_forall_iterator *);
3592 void gfc_free_alloc_list (gfc_alloc *);
3593 void gfc_free_namelist (gfc_namelist *);
3594 void gfc_free_omp_namelist (gfc_omp_namelist *, bool, bool);
3595 void gfc_free_equiv (gfc_equiv *);
3596 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *);
3597 void gfc_free_data (gfc_data *);
3598 void gfc_reject_data (gfc_namespace *);
3599 void gfc_free_case_list (gfc_case *);
3600
3601 /* matchexp.cc -- FIXME too? */
3602 gfc_expr *gfc_get_parentheses (gfc_expr *);
3603
3604 /* openmp.cc */
3605 struct gfc_omp_saved_state { void *ptrs[2]; int ints[1]; };
3606 bool gfc_omp_requires_add_clause (gfc_omp_requires_kind, const char *,
3607 locus *, const char *);
3608 void gfc_check_omp_requires (gfc_namespace *, int);
3609 void gfc_free_omp_clauses (gfc_omp_clauses *);
3610 void gfc_free_oacc_declare_clauses (struct gfc_oacc_declare *);
3611 void gfc_free_omp_declare_variant_list (gfc_omp_declare_variant *list);
3612 void gfc_free_omp_declare_simd (gfc_omp_declare_simd *);
3613 void gfc_free_omp_declare_simd_list (gfc_omp_declare_simd *);
3614 void gfc_free_omp_udr (gfc_omp_udr *);
3615 gfc_omp_udr *gfc_omp_udr_find (gfc_symtree *, gfc_typespec *);
3616 void gfc_resolve_omp_assumptions (gfc_omp_assumptions *);
3617 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
3618 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *, bool);
3619 void gfc_resolve_omp_local_vars (gfc_namespace *);
3620 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
3621 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
3622 void gfc_resolve_omp_declare_simd (gfc_namespace *);
3623 void gfc_resolve_omp_udrs (gfc_symtree *);
3624 void gfc_omp_save_and_clear_state (struct gfc_omp_saved_state *);
3625 void gfc_omp_restore_state (struct gfc_omp_saved_state *);
3626 void gfc_free_expr_list (gfc_expr_list *);
3627 void gfc_resolve_oacc_directive (gfc_code *, gfc_namespace *);
3628 void gfc_resolve_oacc_declare (gfc_namespace *);
3629 void gfc_resolve_oacc_blocks (gfc_code *, gfc_namespace *);
3630 void gfc_resolve_oacc_routines (gfc_namespace *);
3631
3632 /* expr.cc */
3633 void gfc_free_actual_arglist (gfc_actual_arglist *);
3634 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
3635
3636 bool gfc_extract_int (gfc_expr *, int *, int = 0);
3637 bool gfc_extract_hwi (gfc_expr *, HOST_WIDE_INT *, int = 0);
3638
3639 bool is_CFI_desc (gfc_symbol *, gfc_expr *);
3640 bool is_subref_array (gfc_expr *);
3641 bool gfc_is_simply_contiguous (gfc_expr *, bool, bool);
3642 bool gfc_is_not_contiguous (gfc_expr *);
3643 bool gfc_check_init_expr (gfc_expr *);
3644
3645 gfc_expr *gfc_build_conversion (gfc_expr *);
3646 void gfc_free_ref_list (gfc_ref *);
3647 void gfc_type_convert_binary (gfc_expr *, int);
3648 bool gfc_is_constant_expr (gfc_expr *);
3649 bool gfc_simplify_expr (gfc_expr *, int);
3650 bool gfc_try_simplify_expr (gfc_expr *, int);
3651 int gfc_has_vector_index (gfc_expr *);
3652
3653 gfc_expr *gfc_get_expr (void);
3654 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
3655 gfc_expr *gfc_get_null_expr (locus *);
3656 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
3657 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
3658 gfc_expr *gfc_get_constant_expr (bt, int, locus *);
3659 gfc_expr *gfc_get_character_expr (int, locus *, const char *, gfc_charlen_t len);
3660 gfc_expr *gfc_get_int_expr (int, locus *, HOST_WIDE_INT);
3661 gfc_expr *gfc_get_logical_expr (int, locus *, bool);
3662 gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
3663
3664 void gfc_clear_shape (mpz_t *shape, int rank);
3665 void gfc_free_shape (mpz_t **shape, int rank);
3666 void gfc_free_expr (gfc_expr *);
3667 void gfc_replace_expr (gfc_expr *, gfc_expr *);
3668 mpz_t *gfc_copy_shape (mpz_t *, int);
3669 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
3670 gfc_expr *gfc_copy_expr (gfc_expr *);
3671 gfc_ref* gfc_copy_ref (gfc_ref*);
3672
3673 bool gfc_specification_expr (gfc_expr *);
3674
3675 int gfc_numeric_ts (gfc_typespec *);
3676 int gfc_kind_max (gfc_expr *, gfc_expr *);
3677
3678 bool gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
3679 bool gfc_check_assign (gfc_expr *, gfc_expr *, int, bool c = true);
3680 bool gfc_check_pointer_assign (gfc_expr *lvalue, gfc_expr *rvalue,
3681 bool suppres_type_test = false,
3682 bool is_init_expr = false);
3683 bool gfc_check_assign_symbol (gfc_symbol *, gfc_component *, gfc_expr *);
3684
3685 gfc_expr *gfc_build_default_init_expr (gfc_typespec *, locus *);
3686 void gfc_apply_init (gfc_typespec *, symbol_attribute *, gfc_expr *);
3687 bool gfc_has_default_initializer (gfc_symbol *);
3688 gfc_expr *gfc_default_initializer (gfc_typespec *);
3689 gfc_expr *gfc_generate_initializer (gfc_typespec *, bool);
3690 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
3691 void gfc_add_full_array_ref (gfc_expr *, gfc_array_spec *);
3692 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
3693
3694 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
3695
3696 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
3697 bool (*)(gfc_expr *, gfc_symbol *, int*),
3698 int);
3699 void gfc_expr_set_symbols_referenced (gfc_expr *);
3700 bool gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
3701 bool gfc_derived_parameter_expr (gfc_expr *);
3702 gfc_param_spec_type gfc_spec_list_type (gfc_actual_arglist *, gfc_symbol *);
3703 gfc_component * gfc_get_proc_ptr_comp (gfc_expr *);
3704 bool gfc_is_proc_ptr_comp (gfc_expr *);
3705 bool gfc_is_alloc_class_scalar_function (gfc_expr *);
3706 bool gfc_is_class_array_function (gfc_expr *);
3707
3708 bool gfc_ref_this_image (gfc_ref *ref);
3709 bool gfc_is_coindexed (gfc_expr *);
3710 bool gfc_is_coarray (gfc_expr *);
3711 int gfc_get_corank (gfc_expr *);
3712 bool gfc_has_ultimate_allocatable (gfc_expr *);
3713 bool gfc_has_ultimate_pointer (gfc_expr *);
3714 gfc_expr* gfc_find_team_co (gfc_expr *);
3715 gfc_expr* gfc_find_stat_co (gfc_expr *);
3716 gfc_expr* gfc_build_intrinsic_call (gfc_namespace *, gfc_isym_id, const char*,
3717 locus, unsigned, ...);
3718 bool gfc_check_vardef_context (gfc_expr*, bool, bool, bool, const char*);
3719
3720
3721 /* st.cc */
3722 extern gfc_code new_st;
3723
3724 void gfc_clear_new_st (void);
3725 gfc_code *gfc_get_code (gfc_exec_op);
3726 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
3727 void gfc_free_statement (gfc_code *);
3728 void gfc_free_statements (gfc_code *);
3729 void gfc_free_association_list (gfc_association_list *);
3730
3731 /* resolve.cc */
3732 void gfc_expression_rank (gfc_expr *);
3733 bool gfc_op_rank_conformable (gfc_expr *, gfc_expr *);
3734 bool gfc_resolve_ref (gfc_expr *);
3735 bool gfc_resolve_expr (gfc_expr *);
3736 void gfc_resolve (gfc_namespace *);
3737 void gfc_resolve_code (gfc_code *, gfc_namespace *);
3738 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
3739 void gfc_resolve_formal_arglist (gfc_symbol *);
3740 int gfc_impure_variable (gfc_symbol *);
3741 int gfc_pure (gfc_symbol *);
3742 int gfc_implicit_pure (gfc_symbol *);
3743 void gfc_unset_implicit_pure (gfc_symbol *);
3744 int gfc_elemental (gfc_symbol *);
3745 bool gfc_resolve_iterator (gfc_iterator *, bool, bool);
3746 bool find_forall_index (gfc_expr *, gfc_symbol *, int);
3747 bool gfc_resolve_index (gfc_expr *, int);
3748 bool gfc_resolve_dim_arg (gfc_expr *);
3749 bool gfc_is_formal_arg (void);
3750 bool gfc_resolve_substring (gfc_ref *, bool *);
3751 void gfc_resolve_substring_charlen (gfc_expr *);
3752 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
3753 bool gfc_type_is_extensible (gfc_symbol *);
3754 bool gfc_resolve_intrinsic (gfc_symbol *, locus *);
3755 bool gfc_explicit_interface_required (gfc_symbol *, char *, int);
3756 extern int gfc_do_concurrent_flag;
3757 const char* gfc_lookup_function_fuzzy (const char *, gfc_symtree *);
3758 int gfc_pure_function (gfc_expr *e, const char **name);
3759 int gfc_implicit_pure_function (gfc_expr *e);
3760
3761
3762 /* array.cc */
3763 gfc_iterator *gfc_copy_iterator (gfc_iterator *);
3764
3765 void gfc_free_array_spec (gfc_array_spec *);
3766 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
3767
3768 bool gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
3769 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
3770 bool gfc_resolve_array_spec (gfc_array_spec *, int);
3771
3772 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
3773
3774 void gfc_simplify_iterator_var (gfc_expr *);
3775 bool gfc_expand_constructor (gfc_expr *, bool);
3776 int gfc_constant_ac (gfc_expr *);
3777 int gfc_expanded_ac (gfc_expr *);
3778 bool gfc_resolve_character_array_constructor (gfc_expr *);
3779 bool gfc_resolve_array_constructor (gfc_expr *);
3780 bool gfc_check_constructor_type (gfc_expr *);
3781 bool gfc_check_iter_variable (gfc_expr *);
3782 bool gfc_check_constructor (gfc_expr *, bool (*)(gfc_expr *));
3783 bool gfc_array_size (gfc_expr *, mpz_t *);
3784 bool gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
3785 bool gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
3786 gfc_array_ref *gfc_find_array_ref (gfc_expr *, bool a = false);
3787 tree gfc_conv_array_initializer (tree type, gfc_expr *);
3788 bool spec_size (gfc_array_spec *, mpz_t *);
3789 bool spec_dimen_size (gfc_array_spec *, int, mpz_t *);
3790 bool gfc_is_compile_time_shape (gfc_array_spec *);
3791
3792 bool gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *);
3793
3794 /* interface.cc -- FIXME: some of these should be in symbol.cc */
3795 void gfc_free_interface (gfc_interface *);
3796 bool gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
3797 bool gfc_compare_types (gfc_typespec *, gfc_typespec *);
3798 bool gfc_check_dummy_characteristics (gfc_symbol *, gfc_symbol *,
3799 bool, char *, int);
3800 bool gfc_check_result_characteristics (gfc_symbol *, gfc_symbol *,
3801 char *, int);
3802 bool gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
3803 char *, int, const char *, const char *,
3804 bool *bad_result_characteristics = NULL);
3805 void gfc_check_interfaces (gfc_namespace *);
3806 bool gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
3807 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
3808 gfc_symbol *gfc_search_interface (gfc_interface *, int,
3809 gfc_actual_arglist **);
3810 match gfc_extend_expr (gfc_expr *);
3811 void gfc_free_formal_arglist (gfc_formal_arglist *);
3812 bool gfc_extend_assign (gfc_code *, gfc_namespace *);
3813 bool gfc_check_new_interface (gfc_interface *, gfc_symbol *, locus);
3814 bool gfc_add_interface (gfc_symbol *);
3815 gfc_interface *gfc_current_interface_head (void);
3816 void gfc_set_current_interface_head (gfc_interface *);
3817 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
3818 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
3819 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
3820 bool gfc_has_vector_subscript (gfc_expr*);
3821 gfc_intrinsic_op gfc_equivalent_op (gfc_intrinsic_op);
3822 bool gfc_check_typebound_override (gfc_symtree*, gfc_symtree*);
3823 void gfc_check_dtio_interfaces (gfc_symbol*);
3824 gfc_symtree* gfc_find_typebound_dtio_proc (gfc_symbol *, bool, bool);
3825 gfc_symbol* gfc_find_specific_dtio_proc (gfc_symbol*, bool, bool);
3826 void gfc_get_formal_from_actual_arglist (gfc_symbol *, gfc_actual_arglist *);
3827 bool gfc_compare_actual_formal (gfc_actual_arglist **, gfc_formal_arglist *,
3828 int, int, bool, locus *);
3829
3830
3831 /* io.cc */
3832 extern gfc_st_label format_asterisk;
3833
3834 void gfc_free_open (gfc_open *);
3835 bool gfc_resolve_open (gfc_open *, locus *);
3836 void gfc_free_close (gfc_close *);
3837 bool gfc_resolve_close (gfc_close *, locus *);
3838 void gfc_free_filepos (gfc_filepos *);
3839 bool gfc_resolve_filepos (gfc_filepos *, locus *);
3840 void gfc_free_inquire (gfc_inquire *);
3841 bool gfc_resolve_inquire (gfc_inquire *);
3842 void gfc_free_dt (gfc_dt *);
3843 bool gfc_resolve_dt (gfc_code *, gfc_dt *, locus *);
3844 void gfc_free_wait (gfc_wait *);
3845 bool gfc_resolve_wait (gfc_wait *);
3846
3847 /* module.cc */
3848 void gfc_module_init_2 (void);
3849 void gfc_module_done_2 (void);
3850 void gfc_dump_module (const char *, int);
3851 bool gfc_check_symbol_access (gfc_symbol *);
3852 void gfc_free_use_stmts (gfc_use_list *);
3853 const char *gfc_dt_lower_string (const char *);
3854 const char *gfc_dt_upper_string (const char *);
3855
3856 /* primary.cc */
3857 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
3858 symbol_attribute gfc_expr_attr (gfc_expr *);
3859 symbol_attribute gfc_caf_attr (gfc_expr *, bool i = false, bool *r = NULL);
3860 match gfc_match_rvalue (gfc_expr **);
3861 match gfc_match_varspec (gfc_expr*, int, bool, bool);
3862 int gfc_check_digit (char, int);
3863 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
3864 bool gfc_convert_to_structure_constructor (gfc_expr *, gfc_symbol *,
3865 gfc_expr **,
3866 gfc_actual_arglist **, bool);
3867
3868 /* trans.cc */
3869 void gfc_generate_code (gfc_namespace *);
3870 void gfc_generate_module_code (gfc_namespace *);
3871
3872 /* trans-intrinsic.cc */
3873 bool gfc_inline_intrinsic_function_p (gfc_expr *);
3874
3875 /* bbt.cc */
3876 typedef int (*compare_fn) (void *, void *);
3877 void gfc_insert_bbt (void *, void *, compare_fn);
3878 void gfc_delete_bbt (void *, void *, compare_fn);
3879
3880 /* dump-parse-tree.cc */
3881 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
3882 void gfc_dump_c_prototypes (gfc_namespace *, FILE *);
3883 void gfc_dump_external_c_prototypes (FILE *);
3884 void gfc_dump_global_symbols (FILE *);
3885 void debug (gfc_symbol *);
3886 void debug (gfc_expr *);
3887
3888 /* parse.cc */
3889 bool gfc_parse_file (void);
3890 void gfc_global_used (gfc_gsymbol *, locus *);
3891 gfc_namespace* gfc_build_block_ns (gfc_namespace *);
3892
3893 /* dependency.cc */
3894 int gfc_dep_compare_functions (gfc_expr *, gfc_expr *, bool);
3895 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
3896 bool gfc_dep_difference (gfc_expr *, gfc_expr *, mpz_t *);
3897
3898 /* check.cc */
3899 bool gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
3900 bool gfc_calculate_transfer_sizes (gfc_expr*, gfc_expr*, gfc_expr*,
3901 size_t*, size_t*, size_t*);
3902 bool gfc_boz2int (gfc_expr *, int);
3903 bool gfc_boz2real (gfc_expr *, int);
3904 bool gfc_invalid_boz (const char *, locus *);
3905 bool gfc_invalid_null_arg (gfc_expr *);
3906
3907
3908 /* class.cc */
3909 void gfc_fix_class_refs (gfc_expr *e);
3910 void gfc_add_component_ref (gfc_expr *, const char *);
3911 void gfc_add_class_array_ref (gfc_expr *);
3912 #define gfc_add_data_component(e) gfc_add_component_ref(e,"_data")
3913 #define gfc_add_vptr_component(e) gfc_add_component_ref(e,"_vptr")
3914 #define gfc_add_len_component(e) gfc_add_component_ref(e,"_len")
3915 #define gfc_add_hash_component(e) gfc_add_component_ref(e,"_hash")
3916 #define gfc_add_size_component(e) gfc_add_component_ref(e,"_size")
3917 #define gfc_add_def_init_component(e) gfc_add_component_ref(e,"_def_init")
3918 #define gfc_add_final_component(e) gfc_add_component_ref(e,"_final")
3919 bool gfc_is_class_array_ref (gfc_expr *, bool *);
3920 bool gfc_is_class_scalar_expr (gfc_expr *);
3921 bool gfc_is_class_container_ref (gfc_expr *e);
3922 gfc_expr *gfc_class_initializer (gfc_typespec *, gfc_expr *);
3923 unsigned int gfc_hash_value (gfc_symbol *);
3924 gfc_expr *gfc_get_len_component (gfc_expr *e, int);
3925 bool gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
3926 gfc_array_spec **);
3927 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
3928 gfc_symbol *gfc_find_vtab (gfc_typespec *);
3929 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, bool*,
3930 const char*, bool, locus*);
3931 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, bool*,
3932 const char*, bool, locus*);
3933 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, bool*,
3934 gfc_intrinsic_op, bool,
3935 locus*);
3936 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
3937 bool gfc_is_finalizable (gfc_symbol *, gfc_expr **);
3938 bool gfc_may_be_finalized (gfc_typespec);
3939
3940 #define CLASS_DATA(sym) sym->ts.u.derived->components
3941 #define UNLIMITED_POLY(sym) \
3942 (sym != NULL && sym->ts.type == BT_CLASS \
3943 && CLASS_DATA (sym) \
3944 && CLASS_DATA (sym)->ts.u.derived \
3945 && CLASS_DATA (sym)->ts.u.derived->attr.unlimited_polymorphic)
3946 #define IS_CLASS_ARRAY(sym) \
3947 (sym->ts.type == BT_CLASS \
3948 && CLASS_DATA (sym) \
3949 && CLASS_DATA (sym)->attr.dimension \
3950 && !CLASS_DATA (sym)->attr.class_pointer)
3951 #define IS_POINTER(sym) \
3952 (sym->ts.type == BT_CLASS && sym->attr.class_ok && CLASS_DATA (sym) \
3953 ? CLASS_DATA (sym)->attr.class_pointer : sym->attr.pointer)
3954
3955 /* frontend-passes.cc */
3956
3957 void gfc_run_passes (gfc_namespace *);
3958
3959 typedef int (*walk_code_fn_t) (gfc_code **, int *, void *);
3960 typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *);
3961
3962 int gfc_dummy_code_callback (gfc_code **, int *, void *);
3963 int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *);
3964 int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *);
3965 bool gfc_has_dimen_vector_ref (gfc_expr *e);
3966 void gfc_check_externals (gfc_namespace *);
3967 bool gfc_fix_implicit_pure (gfc_namespace *);
3968
3969 /* simplify.cc */
3970
3971 void gfc_convert_mpz_to_signed (mpz_t, int);
3972 gfc_expr *gfc_simplify_ieee_functions (gfc_expr *);
3973 bool gfc_is_size_zero_array (gfc_expr *);
3974
3975 /* trans-array.cc */
3976
3977 bool gfc_is_reallocatable_lhs (gfc_expr *);
3978
3979 /* trans-decl.cc */
3980
3981 void finish_oacc_declare (gfc_namespace *, gfc_symbol *, bool);
3982 void gfc_adjust_builtins (void);
3983
3984 #endif /* GCC_GFORTRAN_H */