1 /* gfortran header file
2 Copyright (C) 2000-2019 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
109
110 /*************************** Enums *****************************/
111
112 /* Used when matching and resolving data I/O transfer statements. */
113
114 enum io_kind
115 { M_READ, M_WRITE, M_PRINT, M_INQUIRE };
116
117
118 /* These are flags for identifying whether we are reading a character literal
119 between quotes or normal source code. */
120
121 enum gfc_instring
122 { NONSTRING = 0, INSTRING_WARN, INSTRING_NOWARN };
123
124 /* This is returned by gfc_notification_std to know if, given the flags
125 that were given (-std=, -pedantic) we should issue an error, a warning
126 or nothing. */
127
128 enum notification
129 { SILENT, WARNING, ERROR };
130
131 /* Matchers return one of these three values. The difference between
132 MATCH_NO and MATCH_ERROR is that MATCH_ERROR means that a match was
133 successful, but that something non-syntactic is wrong and an error
134 has already been issued. */
135
136 enum match
137 { MATCH_NO = 1, MATCH_YES, MATCH_ERROR };
138
139 /* Used for different Fortran source forms in places like scanner.c. */
140 enum gfc_source_form
141 { FORM_FREE, FORM_FIXED, FORM_UNKNOWN };
142
143 /* Expression node types. */
144 enum expr_t
145 { EXPR_UNKNOWN = 0, EXPR_OP = 1, EXPR_FUNCTION, EXPR_CONSTANT, EXPR_VARIABLE,
146 EXPR_SUBSTRING, EXPR_STRUCTURE, EXPR_ARRAY, EXPR_NULL, EXPR_COMPCALL, EXPR_PPC
147 };
148
149 /* Array types. */
150 enum array_type
151 { AS_EXPLICIT = 1, AS_ASSUMED_SHAPE, AS_DEFERRED,
152 AS_ASSUMED_SIZE, AS_IMPLIED_SHAPE, AS_ASSUMED_RANK,
153 AS_UNKNOWN
154 };
155
156 enum ar_type
157 { AR_FULL = 1, AR_ELEMENT, AR_SECTION, AR_UNKNOWN };
158
159 /* Statement label types. ST_LABEL_DO_TARGET is used for obsolescent warnings
160 related to shared DO terminations and DO targets which are neither END DO
161 nor CONTINUE; otherwise it is identical to ST_LABEL_TARGET. */
162 enum gfc_sl_type
163 { ST_LABEL_UNKNOWN = 1, ST_LABEL_TARGET, ST_LABEL_DO_TARGET,
164 ST_LABEL_BAD_TARGET, ST_LABEL_FORMAT
165 };
166
167 /* Intrinsic operators. */
168 enum gfc_intrinsic_op
169 { GFC_INTRINSIC_BEGIN = 0,
170 INTRINSIC_NONE = -1, INTRINSIC_UPLUS = GFC_INTRINSIC_BEGIN,
171 INTRINSIC_UMINUS, INTRINSIC_PLUS, INTRINSIC_MINUS, INTRINSIC_TIMES,
172 INTRINSIC_DIVIDE, INTRINSIC_POWER, INTRINSIC_CONCAT,
173 INTRINSIC_AND, INTRINSIC_OR, INTRINSIC_EQV, INTRINSIC_NEQV,
174 /* ==, /=, >, >=, <, <= */
175 INTRINSIC_EQ, INTRINSIC_NE, INTRINSIC_GT, INTRINSIC_GE,
176 INTRINSIC_LT, INTRINSIC_LE,
177 /* .EQ., .NE., .GT., .GE., .LT., .LE. (OS = Old-Style) */
178 INTRINSIC_EQ_OS, INTRINSIC_NE_OS, INTRINSIC_GT_OS, INTRINSIC_GE_OS,
179 INTRINSIC_LT_OS, INTRINSIC_LE_OS,
180 INTRINSIC_NOT, INTRINSIC_USER, INTRINSIC_ASSIGN, INTRINSIC_PARENTHESES,
181 GFC_INTRINSIC_END, /* Sentinel */
182 /* User defined derived type pseudo operators. These are set beyond the
183 sentinel so that they are excluded from module_read and module_write. */
184 INTRINSIC_FORMATTED, INTRINSIC_UNFORMATTED
185 };
186
187 /* This macro is the number of intrinsic operators that exist.
188 Assumptions are made about the numbering of the interface_op enums. */
189 #define GFC_INTRINSIC_OPS GFC_INTRINSIC_END
190
191 /* Arithmetic results. */
192 enum arith
193 { ARITH_OK = 1, ARITH_OVERFLOW, ARITH_UNDERFLOW, ARITH_NAN,
194 ARITH_DIV0, ARITH_INCOMMENSURATE, ARITH_ASYMMETRIC, ARITH_PROHIBIT,
195 ARITH_WRONGCONCAT
196 };
197
198 /* Statements. */
199 enum gfc_statement
200 {
201 ST_ARITHMETIC_IF, ST_ALLOCATE, ST_ATTR_DECL, ST_ASSOCIATE,
202 ST_BACKSPACE, ST_BLOCK, ST_BLOCK_DATA,
203 ST_CALL, ST_CASE, ST_CLOSE, ST_COMMON, ST_CONTINUE, ST_CONTAINS, ST_CYCLE,
204 ST_DATA, ST_DATA_DECL, ST_DEALLOCATE, ST_DO, ST_ELSE, ST_ELSEIF,
205 ST_ELSEWHERE, ST_END_ASSOCIATE, ST_END_BLOCK, ST_END_BLOCK_DATA,
206 ST_ENDDO, ST_IMPLIED_ENDDO, ST_END_FILE, ST_FINAL, ST_FLUSH, ST_END_FORALL,
207 ST_END_FUNCTION, ST_ENDIF, ST_END_INTERFACE, ST_END_MODULE, ST_END_SUBMODULE,
208 ST_END_PROGRAM, ST_END_SELECT, ST_END_SUBROUTINE, ST_END_WHERE, ST_END_TYPE,
209 ST_ENTRY, ST_EQUIVALENCE, ST_ERROR_STOP, ST_EXIT, ST_FORALL, ST_FORALL_BLOCK,
210 ST_FORMAT, ST_FUNCTION, ST_GOTO, ST_IF_BLOCK, ST_IMPLICIT, ST_IMPLICIT_NONE,
211 ST_IMPORT, ST_INQUIRE, ST_INTERFACE, ST_SYNC_ALL, ST_SYNC_MEMORY,
212 ST_SYNC_IMAGES, ST_PARAMETER, ST_MODULE, ST_SUBMODULE, ST_MODULE_PROC,
213 ST_NAMELIST, ST_NULLIFY, ST_OPEN, ST_PAUSE, ST_PRIVATE, ST_PROGRAM, ST_PUBLIC,
214 ST_READ, ST_RETURN, ST_REWIND, ST_STOP, ST_SUBROUTINE, ST_TYPE, ST_USE,
215 ST_WHERE_BLOCK, ST_WHERE, ST_WAIT, ST_WRITE, ST_ASSIGNMENT,
216 ST_POINTER_ASSIGNMENT, ST_SELECT_CASE, ST_SEQUENCE, ST_SIMPLE_IF,
217 ST_STATEMENT_FUNCTION, ST_DERIVED_DECL, ST_LABEL_ASSIGNMENT, ST_ENUM,
218 ST_ENUMERATOR, ST_END_ENUM, ST_SELECT_TYPE, ST_TYPE_IS, ST_CLASS_IS,
219 ST_STRUCTURE_DECL, ST_END_STRUCTURE,
220 ST_UNION, ST_END_UNION, ST_MAP, ST_END_MAP,
221 ST_OACC_PARALLEL_LOOP, ST_OACC_END_PARALLEL_LOOP, ST_OACC_PARALLEL,
222 ST_OACC_END_PARALLEL, ST_OACC_KERNELS, ST_OACC_END_KERNELS, ST_OACC_DATA,
223 ST_OACC_END_DATA, ST_OACC_HOST_DATA, ST_OACC_END_HOST_DATA, ST_OACC_LOOP,
224 ST_OACC_END_LOOP, ST_OACC_DECLARE, ST_OACC_UPDATE, ST_OACC_WAIT,
225 ST_OACC_CACHE, ST_OACC_KERNELS_LOOP, ST_OACC_END_KERNELS_LOOP,
226 ST_OACC_ENTER_DATA, ST_OACC_EXIT_DATA, ST_OACC_ROUTINE,
227 ST_OACC_ATOMIC, ST_OACC_END_ATOMIC,
228 ST_OMP_ATOMIC, ST_OMP_BARRIER, ST_OMP_CRITICAL, ST_OMP_END_ATOMIC,
229 ST_OMP_END_CRITICAL, ST_OMP_END_DO, ST_OMP_END_MASTER, ST_OMP_END_ORDERED,
230 ST_OMP_END_PARALLEL, ST_OMP_END_PARALLEL_DO, ST_OMP_END_PARALLEL_SECTIONS,
231 ST_OMP_END_PARALLEL_WORKSHARE, ST_OMP_END_SECTIONS, ST_OMP_END_SINGLE,
232 ST_OMP_END_WORKSHARE, ST_OMP_DO, ST_OMP_FLUSH, ST_OMP_MASTER, ST_OMP_ORDERED,
233 ST_OMP_PARALLEL, ST_OMP_PARALLEL_DO, ST_OMP_PARALLEL_SECTIONS,
234 ST_OMP_PARALLEL_WORKSHARE, ST_OMP_SECTIONS, ST_OMP_SECTION, ST_OMP_SINGLE,
235 ST_OMP_THREADPRIVATE, ST_OMP_WORKSHARE, ST_OMP_TASK, ST_OMP_END_TASK,
236 ST_OMP_TASKWAIT, ST_OMP_TASKYIELD, ST_OMP_CANCEL, ST_OMP_CANCELLATION_POINT,
237 ST_OMP_TASKGROUP, ST_OMP_END_TASKGROUP, ST_OMP_SIMD, ST_OMP_END_SIMD,
238 ST_OMP_DO_SIMD, ST_OMP_END_DO_SIMD, ST_OMP_PARALLEL_DO_SIMD,
239 ST_OMP_END_PARALLEL_DO_SIMD, ST_OMP_DECLARE_SIMD, ST_OMP_DECLARE_REDUCTION,
240 ST_OMP_TARGET, ST_OMP_END_TARGET, ST_OMP_TARGET_DATA, ST_OMP_END_TARGET_DATA,
241 ST_OMP_TARGET_UPDATE, ST_OMP_DECLARE_TARGET,
242 ST_OMP_TEAMS, ST_OMP_END_TEAMS, ST_OMP_DISTRIBUTE, ST_OMP_END_DISTRIBUTE,
243 ST_OMP_DISTRIBUTE_SIMD, ST_OMP_END_DISTRIBUTE_SIMD,
244 ST_OMP_DISTRIBUTE_PARALLEL_DO, ST_OMP_END_DISTRIBUTE_PARALLEL_DO,
245 ST_OMP_DISTRIBUTE_PARALLEL_DO_SIMD, ST_OMP_END_DISTRIBUTE_PARALLEL_DO_SIMD,
246 ST_OMP_TARGET_TEAMS, ST_OMP_END_TARGET_TEAMS, ST_OMP_TEAMS_DISTRIBUTE,
247 ST_OMP_END_TEAMS_DISTRIBUTE, ST_OMP_TEAMS_DISTRIBUTE_SIMD,
248 ST_OMP_END_TEAMS_DISTRIBUTE_SIMD, ST_OMP_TARGET_TEAMS_DISTRIBUTE,
249 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE, ST_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD,
250 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_SIMD, ST_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO,
251 ST_OMP_END_TEAMS_DISTRIBUTE_PARALLEL_DO,
252 ST_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
253 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
254 ST_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
255 ST_OMP_END_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
256 ST_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
257 ST_OMP_END_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
258 ST_OMP_TARGET_PARALLEL, ST_OMP_END_TARGET_PARALLEL,
259 ST_OMP_TARGET_PARALLEL_DO, ST_OMP_END_TARGET_PARALLEL_DO,
260 ST_OMP_TARGET_PARALLEL_DO_SIMD, ST_OMP_END_TARGET_PARALLEL_DO_SIMD,
261 ST_OMP_TARGET_ENTER_DATA, ST_OMP_TARGET_EXIT_DATA,
262 ST_OMP_TARGET_SIMD, ST_OMP_END_TARGET_SIMD,
263 ST_OMP_TASKLOOP, ST_OMP_END_TASKLOOP,
264 ST_OMP_TASKLOOP_SIMD, ST_OMP_END_TASKLOOP_SIMD, ST_OMP_ORDERED_DEPEND,
265 ST_PROCEDURE, ST_GENERIC, ST_CRITICAL, ST_END_CRITICAL,
266 ST_GET_FCN_CHARACTERISTICS, ST_LOCK, ST_UNLOCK, ST_EVENT_POST,
267 ST_EVENT_WAIT, ST_FAIL_IMAGE, ST_FORM_TEAM, ST_CHANGE_TEAM,
268 ST_END_TEAM, ST_SYNC_TEAM, ST_NONE
269 };
270
271 /* Types of interfaces that we can have. Assignment interfaces are
272 considered to be intrinsic operators. */
273 enum interface_type
274 {
275 INTERFACE_NAMELESS = 1, INTERFACE_GENERIC,
276 INTERFACE_INTRINSIC_OP, INTERFACE_USER_OP, INTERFACE_ABSTRACT,
277 INTERFACE_DTIO
278 };
279
280 /* Symbol flavors: these are all mutually exclusive.
281 12 elements = 4 bits. */
282 enum sym_flavor
283 {
284 FL_UNKNOWN = 0, FL_PROGRAM, FL_BLOCK_DATA, FL_MODULE, FL_VARIABLE,
285 FL_PARAMETER, FL_LABEL, FL_PROCEDURE, FL_DERIVED, FL_NAMELIST,
286 FL_UNION, FL_STRUCT, FL_VOID
287 };
288
289 /* Procedure types. 7 elements = 3 bits. */
290 enum procedure_type
291 { PROC_UNKNOWN, PROC_MODULE, PROC_INTERNAL, PROC_DUMMY,
292 PROC_INTRINSIC, PROC_ST_FUNCTION, PROC_EXTERNAL
293 };
294
295 /* Intent types. Note that these values are also used in another enum in
296 decl.c (match_attr_spec). */
297 enum sym_intent
298 { INTENT_UNKNOWN = 0, INTENT_IN, INTENT_OUT, INTENT_INOUT
299 };
300
301 /* Access types. */
302 enum gfc_access
303 { ACCESS_UNKNOWN = 0, ACCESS_PUBLIC, ACCESS_PRIVATE
304 };
305
306 /* Flags to keep track of where an interface came from.
307 3 elements = 2 bits. */
308 enum ifsrc
309 { IFSRC_UNKNOWN = 0, /* Interface unknown, only return type may be known. */
310 IFSRC_DECL, /* FUNCTION or SUBROUTINE declaration. */
311 IFSRC_IFBODY /* INTERFACE statement or PROCEDURE statement
312 with explicit interface. */
313 };
314
315 /* Whether a SAVE attribute was set explicitly or implicitly. */
316 enum save_state
317 { SAVE_NONE = 0, SAVE_EXPLICIT, SAVE_IMPLICIT
318 };
319
320 /* OpenACC 'routine' directive's level of parallelism. */
321 enum oacc_routine_lop
322 { OACC_ROUTINE_LOP_NONE = 0,
323 OACC_ROUTINE_LOP_GANG,
324 OACC_ROUTINE_LOP_WORKER,
325 OACC_ROUTINE_LOP_VECTOR,
326 OACC_ROUTINE_LOP_SEQ,
327 OACC_ROUTINE_LOP_ERROR
328 };
329
330 /* Strings for all symbol attributes. We use these for dumping the
331 parse tree, in error messages, and also when reading and writing
332 modules. In symbol.c. */
333 extern const mstring flavors[];
334 extern const mstring procedures[];
335 extern const mstring intents[];
336 extern const mstring access_types[];
337 extern const mstring ifsrc_types[];
338 extern const mstring save_status[];
339
340 /* Strings for DTIO procedure names. In symbol.c. */
341 extern const mstring dtio_procs[];
342
343 enum dtio_codes
344 { DTIO_RF = 0, DTIO_WF, DTIO_RUF, DTIO_WUF };
345
346 /* Enumeration of all the generic intrinsic functions. Used by the
347 backend for identification of a function. */
348
349 enum gfc_isym_id
350 {
351 /* GFC_ISYM_NONE is used for intrinsics which will never be seen by
352 the backend (e.g. KIND). */
353 GFC_ISYM_NONE = 0,
354 GFC_ISYM_ABORT,
355 GFC_ISYM_ABS,
356 GFC_ISYM_ACCESS,
357 GFC_ISYM_ACHAR,
358 GFC_ISYM_ACOS,
359 GFC_ISYM_ACOSH,
360 GFC_ISYM_ADJUSTL,
361 GFC_ISYM_ADJUSTR,
362 GFC_ISYM_AIMAG,
363 GFC_ISYM_AINT,
364 GFC_ISYM_ALARM,
365 GFC_ISYM_ALL,
366 GFC_ISYM_ALLOCATED,
367 GFC_ISYM_AND,
368 GFC_ISYM_ANINT,
369 GFC_ISYM_ANY,
370 GFC_ISYM_ASIN,
371 GFC_ISYM_ASINH,
372 GFC_ISYM_ASSOCIATED,
373 GFC_ISYM_ATAN,
374 GFC_ISYM_ATAN2,
375 GFC_ISYM_ATANH,
376 GFC_ISYM_ATOMIC_ADD,
377 GFC_ISYM_ATOMIC_AND,
378 GFC_ISYM_ATOMIC_CAS,
379 GFC_ISYM_ATOMIC_DEF,
380 GFC_ISYM_ATOMIC_FETCH_ADD,
381 GFC_ISYM_ATOMIC_FETCH_AND,
382 GFC_ISYM_ATOMIC_FETCH_OR,
383 GFC_ISYM_ATOMIC_FETCH_XOR,
384 GFC_ISYM_ATOMIC_OR,
385 GFC_ISYM_ATOMIC_REF,
386 GFC_ISYM_ATOMIC_XOR,
387 GFC_ISYM_BGE,
388 GFC_ISYM_BGT,
389 GFC_ISYM_BIT_SIZE,
390 GFC_ISYM_BLE,
391 GFC_ISYM_BLT,
392 GFC_ISYM_BTEST,
393 GFC_ISYM_CAF_GET,
394 GFC_ISYM_CAF_SEND,
395 GFC_ISYM_CEILING,
396 GFC_ISYM_CHAR,
397 GFC_ISYM_CHDIR,
398 GFC_ISYM_CHMOD,
399 GFC_ISYM_CMPLX,
400 GFC_ISYM_CO_BROADCAST,
401 GFC_ISYM_CO_MAX,
402 GFC_ISYM_CO_MIN,
403 GFC_ISYM_CO_REDUCE,
404 GFC_ISYM_CO_SUM,
405 GFC_ISYM_COMMAND_ARGUMENT_COUNT,
406 GFC_ISYM_COMPILER_OPTIONS,
407 GFC_ISYM_COMPILER_VERSION,
408 GFC_ISYM_COMPLEX,
409 GFC_ISYM_CONJG,
410 GFC_ISYM_CONVERSION,
411 GFC_ISYM_COS,
412 GFC_ISYM_COSH,
413 GFC_ISYM_COTAN,
414 GFC_ISYM_COUNT,
415 GFC_ISYM_CPU_TIME,
416 GFC_ISYM_CSHIFT,
417 GFC_ISYM_CTIME,
418 GFC_ISYM_C_ASSOCIATED,
419 GFC_ISYM_C_F_POINTER,
420 GFC_ISYM_C_F_PROCPOINTER,
421 GFC_ISYM_C_FUNLOC,
422 GFC_ISYM_C_LOC,
423 GFC_ISYM_C_SIZEOF,
424 GFC_ISYM_DATE_AND_TIME,
425 GFC_ISYM_DBLE,
426 GFC_ISYM_DIGITS,
427 GFC_ISYM_DIM,
428 GFC_ISYM_DOT_PRODUCT,
429 GFC_ISYM_DPROD,
430 GFC_ISYM_DSHIFTL,
431 GFC_ISYM_DSHIFTR,
432 GFC_ISYM_DTIME,
433 GFC_ISYM_EOSHIFT,
434 GFC_ISYM_EPSILON,
435 GFC_ISYM_ERF,
436 GFC_ISYM_ERFC,
437 GFC_ISYM_ERFC_SCALED,
438 GFC_ISYM_ETIME,
439 GFC_ISYM_EVENT_QUERY,
440 GFC_ISYM_EXECUTE_COMMAND_LINE,
441 GFC_ISYM_EXIT,
442 GFC_ISYM_EXP,
443 GFC_ISYM_EXPONENT,
444 GFC_ISYM_EXTENDS_TYPE_OF,
445 GFC_ISYM_FAILED_IMAGES,
446 GFC_ISYM_FDATE,
447 GFC_ISYM_FE_RUNTIME_ERROR,
448 GFC_ISYM_FGET,
449 GFC_ISYM_FGETC,
450 GFC_ISYM_FINDLOC,
451 GFC_ISYM_FLOOR,
452 GFC_ISYM_FLUSH,
453 GFC_ISYM_FNUM,
454 GFC_ISYM_FPUT,
455 GFC_ISYM_FPUTC,
456 GFC_ISYM_FRACTION,
457 GFC_ISYM_FREE,
458 GFC_ISYM_FSEEK,
459 GFC_ISYM_FSTAT,
460 GFC_ISYM_FTELL,
461 GFC_ISYM_TGAMMA,
462 GFC_ISYM_GERROR,
463 GFC_ISYM_GETARG,
464 GFC_ISYM_GET_COMMAND,
465 GFC_ISYM_GET_COMMAND_ARGUMENT,
466 GFC_ISYM_GETCWD,
467 GFC_ISYM_GETENV,
468 GFC_ISYM_GET_ENVIRONMENT_VARIABLE,
469 GFC_ISYM_GETGID,
470 GFC_ISYM_GETLOG,
471 GFC_ISYM_GETPID,
472 GFC_ISYM_GET_TEAM,
473 GFC_ISYM_GETUID,
474 GFC_ISYM_GMTIME,
475 GFC_ISYM_HOSTNM,
476 GFC_ISYM_HUGE,
477 GFC_ISYM_HYPOT,
478 GFC_ISYM_IACHAR,
479 GFC_ISYM_IALL,
480 GFC_ISYM_IAND,
481 GFC_ISYM_IANY,
482 GFC_ISYM_IARGC,
483 GFC_ISYM_IBCLR,
484 GFC_ISYM_IBITS,
485 GFC_ISYM_IBSET,
486 GFC_ISYM_ICHAR,
487 GFC_ISYM_IDATE,
488 GFC_ISYM_IEOR,
489 GFC_ISYM_IERRNO,
490 GFC_ISYM_IMAGE_INDEX,
491 GFC_ISYM_IMAGE_STATUS,
492 GFC_ISYM_INDEX,
493 GFC_ISYM_INT,
494 GFC_ISYM_INT2,
495 GFC_ISYM_INT8,
496 GFC_ISYM_IOR,
497 GFC_ISYM_IPARITY,
498 GFC_ISYM_IRAND,
499 GFC_ISYM_ISATTY,
500 GFC_ISYM_IS_CONTIGUOUS,
501 GFC_ISYM_IS_IOSTAT_END,
502 GFC_ISYM_IS_IOSTAT_EOR,
503 GFC_ISYM_ISNAN,
504 GFC_ISYM_ISHFT,
505 GFC_ISYM_ISHFTC,
506 GFC_ISYM_ITIME,
507 GFC_ISYM_J0,
508 GFC_ISYM_J1,
509 GFC_ISYM_JN,
510 GFC_ISYM_JN2,
511 GFC_ISYM_KILL,
512 GFC_ISYM_KIND,
513 GFC_ISYM_LBOUND,
514 GFC_ISYM_LCOBOUND,
515 GFC_ISYM_LEADZ,
516 GFC_ISYM_LEN,
517 GFC_ISYM_LEN_TRIM,
518 GFC_ISYM_LGAMMA,
519 GFC_ISYM_LGE,
520 GFC_ISYM_LGT,
521 GFC_ISYM_LINK,
522 GFC_ISYM_LLE,
523 GFC_ISYM_LLT,
524 GFC_ISYM_LOC,
525 GFC_ISYM_LOG,
526 GFC_ISYM_LOG10,
527 GFC_ISYM_LOGICAL,
528 GFC_ISYM_LONG,
529 GFC_ISYM_LSHIFT,
530 GFC_ISYM_LSTAT,
531 GFC_ISYM_LTIME,
532 GFC_ISYM_MALLOC,
533 GFC_ISYM_MASKL,
534 GFC_ISYM_MASKR,
535 GFC_ISYM_MATMUL,
536 GFC_ISYM_MAX,
537 GFC_ISYM_MAXEXPONENT,
538 GFC_ISYM_MAXLOC,
539 GFC_ISYM_MAXVAL,
540 GFC_ISYM_MCLOCK,
541 GFC_ISYM_MCLOCK8,
542 GFC_ISYM_MERGE,
543 GFC_ISYM_MERGE_BITS,
544 GFC_ISYM_MIN,
545 GFC_ISYM_MINEXPONENT,
546 GFC_ISYM_MINLOC,
547 GFC_ISYM_MINVAL,
548 GFC_ISYM_MOD,
549 GFC_ISYM_MODULO,
550 GFC_ISYM_MOVE_ALLOC,
551 GFC_ISYM_MVBITS,
552 GFC_ISYM_NEAREST,
553 GFC_ISYM_NEW_LINE,
554 GFC_ISYM_NINT,
555 GFC_ISYM_NORM2,
556 GFC_ISYM_NOT,
557 GFC_ISYM_NULL,
558 GFC_ISYM_NUM_IMAGES,
559 GFC_ISYM_OR,
560 GFC_ISYM_PACK,
561 GFC_ISYM_PARITY,
562 GFC_ISYM_PERROR,
563 GFC_ISYM_POPCNT,
564 GFC_ISYM_POPPAR,
565 GFC_ISYM_PRECISION,
566 GFC_ISYM_PRESENT,
567 GFC_ISYM_PRODUCT,
568 GFC_ISYM_RADIX,
569 GFC_ISYM_RAND,
570 GFC_ISYM_RANDOM_INIT,
571 GFC_ISYM_RANDOM_NUMBER,
572 GFC_ISYM_RANDOM_SEED,
573 GFC_ISYM_RANGE,
574 GFC_ISYM_RANK,
575 GFC_ISYM_REAL,
576 GFC_ISYM_RENAME,
577 GFC_ISYM_REPEAT,
578 GFC_ISYM_RESHAPE,
579 GFC_ISYM_RRSPACING,
580 GFC_ISYM_RSHIFT,
581 GFC_ISYM_SAME_TYPE_AS,
582 GFC_ISYM_SC_KIND,
583 GFC_ISYM_SCALE,
584 GFC_ISYM_SCAN,
585 GFC_ISYM_SECNDS,
586 GFC_ISYM_SECOND,
587 GFC_ISYM_SET_EXPONENT,
588 GFC_ISYM_SHAPE,
589 GFC_ISYM_SHIFTA,
590 GFC_ISYM_SHIFTL,
591 GFC_ISYM_SHIFTR,
592 GFC_ISYM_BACKTRACE,
593 GFC_ISYM_SIGN,
594 GFC_ISYM_SIGNAL,
595 GFC_ISYM_SI_KIND,
596 GFC_ISYM_SIN,
597 GFC_ISYM_SINH,
598 GFC_ISYM_SIZE,
599 GFC_ISYM_SLEEP,
600 GFC_ISYM_SIZEOF,
601 GFC_ISYM_SPACING,
602 GFC_ISYM_SPREAD,
603 GFC_ISYM_SQRT,
604 GFC_ISYM_SRAND,
605 GFC_ISYM_SR_KIND,
606 GFC_ISYM_STAT,
607 GFC_ISYM_STOPPED_IMAGES,
608 GFC_ISYM_STORAGE_SIZE,
609 GFC_ISYM_STRIDE,
610 GFC_ISYM_SUM,
611 GFC_ISYM_SYMLINK,
612 GFC_ISYM_SYMLNK,
613 GFC_ISYM_SYSTEM,
614 GFC_ISYM_SYSTEM_CLOCK,
615 GFC_ISYM_TAN,
616 GFC_ISYM_TANH,
617 GFC_ISYM_TEAM_NUMBER,
618 GFC_ISYM_THIS_IMAGE,
619 GFC_ISYM_TIME,
620 GFC_ISYM_TIME8,
621 GFC_ISYM_TINY,
622 GFC_ISYM_TRAILZ,
623 GFC_ISYM_TRANSFER,
624 GFC_ISYM_TRANSPOSE,
625 GFC_ISYM_TRIM,
626 GFC_ISYM_TTYNAM,
627 GFC_ISYM_UBOUND,
628 GFC_ISYM_UCOBOUND,
629 GFC_ISYM_UMASK,
630 GFC_ISYM_UNLINK,
631 GFC_ISYM_UNPACK,
632 GFC_ISYM_VERIFY,
633 GFC_ISYM_XOR,
634 GFC_ISYM_Y0,
635 GFC_ISYM_Y1,
636 GFC_ISYM_YN,
637 GFC_ISYM_YN2
638 };
639
640 enum init_local_logical
641 {
642 GFC_INIT_LOGICAL_OFF = 0,
643 GFC_INIT_LOGICAL_FALSE,
644 GFC_INIT_LOGICAL_TRUE
645 };
646
647 enum init_local_character
648 {
649 GFC_INIT_CHARACTER_OFF = 0,
650 GFC_INIT_CHARACTER_ON
651 };
652
653 enum init_local_integer
654 {
655 GFC_INIT_INTEGER_OFF = 0,
656 GFC_INIT_INTEGER_ON
657 };
658
659 enum gfc_reverse
660 {
661 GFC_ENABLE_REVERSE,
662 GFC_FORWARD_SET,
663 GFC_REVERSE_SET,
664 GFC_INHIBIT_REVERSE
665 };
666
667 enum gfc_param_spec_type
668 {
669 SPEC_EXPLICIT,
670 SPEC_ASSUMED,
671 SPEC_DEFERRED
672 };
673
674 /************************* Structures *****************************/
675
676 /* Used for keeping things in balanced binary trees. */
677 #define BBT_HEADER(self) int priority; struct self *left, *right
678
679 #define NAMED_INTCST(a,b,c,d) a,
680 #define NAMED_KINDARRAY(a,b,c,d) a,
681 #define NAMED_FUNCTION(a,b,c,d) a,
682 #define NAMED_SUBROUTINE(a,b,c,d) a,
683 #define NAMED_DERIVED_TYPE(a,b,c,d) a,
684 enum iso_fortran_env_symbol
685 {
686 ISOFORTRANENV_INVALID = -1,
687 #include "iso-fortran-env.def"
688 ISOFORTRANENV_LAST, ISOFORTRANENV_NUMBER = ISOFORTRANENV_LAST
689 };
690 #undef NAMED_INTCST
691 #undef NAMED_KINDARRAY
692 #undef NAMED_FUNCTION
693 #undef NAMED_SUBROUTINE
694 #undef NAMED_DERIVED_TYPE
695
696 #define NAMED_INTCST(a,b,c,d) a,
697 #define NAMED_REALCST(a,b,c,d) a,
698 #define NAMED_CMPXCST(a,b,c,d) a,
699 #define NAMED_LOGCST(a,b,c) a,
700 #define NAMED_CHARKNDCST(a,b,c) a,
701 #define NAMED_CHARCST(a,b,c) a,
702 #define DERIVED_TYPE(a,b,c) a,
703 #define NAMED_FUNCTION(a,b,c,d) a,
704 #define NAMED_SUBROUTINE(a,b,c,d) a,
705 enum iso_c_binding_symbol
706 {
707 ISOCBINDING_INVALID = -1,
708 #include "iso-c-binding.def"
709 ISOCBINDING_LAST,
710 ISOCBINDING_NUMBER = ISOCBINDING_LAST
711 };
712 #undef NAMED_INTCST
713 #undef NAMED_REALCST
714 #undef NAMED_CMPXCST
715 #undef NAMED_LOGCST
716 #undef NAMED_CHARKNDCST
717 #undef NAMED_CHARCST
718 #undef DERIVED_TYPE
719 #undef NAMED_FUNCTION
720 #undef NAMED_SUBROUTINE
721
722 enum intmod_id
723 {
724 INTMOD_NONE = 0, INTMOD_ISO_FORTRAN_ENV, INTMOD_ISO_C_BINDING,
725 INTMOD_IEEE_FEATURES, INTMOD_IEEE_EXCEPTIONS, INTMOD_IEEE_ARITHMETIC
726 };
727
728 typedef struct
729 {
730 char name[GFC_MAX_SYMBOL_LEN + 1];
731 int value; /* Used for both integer and character values. */
732 bt f90_type;
733 }
734 CInteropKind_t;
735
736 /* Array of structs, where the structs represent the C interop kinds.
737 The list will be implemented based on a hash of the kind name since
738 these could be accessed multiple times.
739 Declared in trans-types.c as a global, since it's in that file
740 that the list is initialized. */
741 extern CInteropKind_t c_interop_kinds_table[];
742
743
744 /* Structure and list of supported extension attributes. */
745 typedef enum
746 {
747 EXT_ATTR_DLLIMPORT = 0,
748 EXT_ATTR_DLLEXPORT,
749 EXT_ATTR_STDCALL,
750 EXT_ATTR_CDECL,
751 EXT_ATTR_FASTCALL,
752 EXT_ATTR_NO_ARG_CHECK,
753 EXT_ATTR_LAST, EXT_ATTR_NUM = EXT_ATTR_LAST
754 }
755 ext_attr_id_t;
756
757 typedef struct
758 {
759 const char *name;
760 unsigned id;
761 const char *middle_end_name;
762 }
763 ext_attr_t;
764
765 extern const ext_attr_t ext_attr_list[];
766
767 /* Symbol attribute structure. */
768 typedef struct
769 {
770 /* Variable attributes. */
771 unsigned allocatable:1, dimension:1, codimension:1, external:1, intrinsic:1,
772 optional:1, pointer:1, target:1, value:1, volatile_:1, temporary:1,
773 dummy:1, result:1, assign:1, threadprivate:1, not_always_present:1,
774 implied_index:1, subref_array_pointer:1, proc_pointer:1, asynchronous:1,
775 contiguous:1, fe_temp: 1, automatic: 1;
776
777 /* For CLASS containers, the pointer attribute is sometimes set internally
778 even though it was not directly specified. In this case, keep the
779 "real" (original) value here. */
780 unsigned class_pointer:1;
781
782 ENUM_BITFIELD (save_state) save:2;
783
784 unsigned data:1, /* Symbol is named in a DATA statement. */
785 is_protected:1, /* Symbol has been marked as protected. */
786 use_assoc:1, /* Symbol has been use-associated. */
787 used_in_submodule:1, /* Symbol has been use-associated in a
788 submodule. Needed since these entities must
789 be set host associated to be compliant. */
790 use_only:1, /* Symbol has been use-associated, with ONLY. */
791 use_rename:1, /* Symbol has been use-associated and renamed. */
792 imported:1, /* Symbol has been associated by IMPORT. */
793 host_assoc:1; /* Symbol has been host associated. */
794
795 unsigned in_namelist:1, in_common:1, in_equivalence:1;
796 unsigned function:1, subroutine:1, procedure:1;
797 unsigned generic:1, generic_copy:1;
798 unsigned implicit_type:1; /* Type defined via implicit rules. */
799 unsigned untyped:1; /* No implicit type could be found. */
800
801 unsigned is_bind_c:1; /* say if is bound to C. */
802 unsigned extension:8; /* extension level of a derived type. */
803 unsigned is_class:1; /* is a CLASS container. */
804 unsigned class_ok:1; /* is a CLASS object with correct attributes. */
805 unsigned vtab:1; /* is a derived type vtab, pointed to by CLASS objects. */
806 unsigned vtype:1; /* is a derived type of a vtab. */
807
808 /* These flags are both in the typespec and attribute. The attribute
809 list is what gets read from/written to a module file. The typespec
810 is created from a decl being processed. */
811 unsigned is_c_interop:1; /* It's c interoperable. */
812 unsigned is_iso_c:1; /* Symbol is from iso_c_binding. */
813
814 /* Function/subroutine attributes */
815 unsigned sequence:1, elemental:1, pure:1, recursive:1;
816 unsigned unmaskable:1, masked:1, contained:1, mod_proc:1, abstract:1;
817
818 /* Set if this is a module function or subroutine. Note that it is an
819 attribute because it appears as a prefix in the declaration like
820 PURE, etc.. */
821 unsigned module_procedure:1;
822
823 /* Set if a (public) symbol [e.g. generic name] exposes this symbol,
824 which is relevant for private module procedures. */
825 unsigned public_used:1;
826
827 /* This is set if a contained procedure could be declared pure. This is
828 used for certain optimizations that require the result or arguments
829 cannot alias. Note that this is zero for PURE procedures. */
830 unsigned implicit_pure:1;
831
832 /* This is set for a procedure that contains expressions referencing
833 arrays coming from outside its namespace.
834 This is used to force the creation of a temporary when the LHS of
835 an array assignment may be used by an elemental procedure appearing
836 on the RHS. */
837 unsigned array_outer_dependency:1;
838
839 /* This is set if the subroutine doesn't return. Currently, this
840 is only possible for intrinsic subroutines. */
841 unsigned noreturn:1;
842
843 /* Set if this procedure is an alternate entry point. These procedures
844 don't have any code associated, and the backend will turn them into
845 thunks to the master function. */
846 unsigned entry:1;
847
848 /* Set if this is the master function for a procedure with multiple
849 entry points. */
850 unsigned entry_master:1;
851
852 /* Set if this is the master function for a function with multiple
853 entry points where characteristics of the entry points differ. */
854 unsigned mixed_entry_master:1;
855
856 /* Set if a function must always be referenced by an explicit interface. */
857 unsigned always_explicit:1;
858
859 /* Set if the symbol is generated and, hence, standard violations
860 shouldn't be flaged. */
861 unsigned artificial:1;
862
863 /* Set if the symbol has been referenced in an expression. No further
864 modification of type or type parameters is permitted. */
865 unsigned referenced:1;
866
867 /* Set if this is the symbol for the main program. */
868 unsigned is_main_program:1;
869
870 /* Mutually exclusive multibit attributes. */
871 ENUM_BITFIELD (gfc_access) access:2;
872 ENUM_BITFIELD (sym_intent) intent:2;
873 ENUM_BITFIELD (sym_flavor) flavor:4;
874 ENUM_BITFIELD (ifsrc) if_source:2;
875
876 ENUM_BITFIELD (procedure_type) proc:3;
877
878 /* Special attributes for Cray pointers, pointees. */
879 unsigned cray_pointer:1, cray_pointee:1;
880
881 /* The symbol is a derived type with allocatable components, pointer
882 components or private components, procedure pointer components,
883 possibly nested. zero_comp is true if the derived type has no
884 component at all. defined_assign_comp is true if the derived
885 type or a (sub-)component has a typebound defined assignment.
886 unlimited_polymorphic flags the type of the container for these
887 entities. */
888 unsigned alloc_comp:1, pointer_comp:1, proc_pointer_comp:1,
889 private_comp:1, zero_comp:1, coarray_comp:1, lock_comp:1,
890 event_comp:1, defined_assign_comp:1, unlimited_polymorphic:1,
891 has_dtio_procs:1, caf_token:1;
892
893 /* This is a temporary selector for SELECT TYPE or an associate
894 variable for SELECT_TYPE or ASSOCIATE. */
895 unsigned select_type_temporary:1, associate_var:1;
896
897 /* These are the attributes required for parameterized derived
898 types. */
899 unsigned pdt_kind:1, pdt_len:1, pdt_type:1, pdt_template:1,
900 pdt_array:1, pdt_string:1;
901
902 /* This is omp_{out,in,priv,orig} artificial variable in
903 !$OMP DECLARE REDUCTION. */
904 unsigned omp_udr_artificial_var:1;
905
906 /* Mentioned in OMP DECLARE TARGET. */
907 unsigned omp_declare_target:1;
908 unsigned omp_declare_target_link:1;
909
910 /* Mentioned in OACC DECLARE. */
911 unsigned oacc_declare_create:1;
912 unsigned oacc_declare_copyin:1;
913 unsigned oacc_declare_deviceptr:1;
914 unsigned oacc_declare_device_resident:1;
915 unsigned oacc_declare_link:1;
916
917 /* OpenACC 'routine' directive's level of parallelism. */
918 ENUM_BITFIELD (oacc_routine_lop) oacc_routine_lop:3;
919
920 /* Attributes set by compiler extensions (!GCC$ ATTRIBUTES). */
921 unsigned ext_attr:EXT_ATTR_NUM;
922
923 /* The namespace where the attribute has been set. */
924 struct gfc_namespace *volatile_ns, *asynchronous_ns;
925 }
926 symbol_attribute;
927
928
929 /* We need to store source lines as sequences of multibyte source
930 characters. We define here a type wide enough to hold any multibyte
931 source character, just like libcpp does. A 32-bit type is enough. */
932
933 #if HOST_BITS_PER_INT >= 32
934 typedef unsigned int gfc_char_t;
935 #elif HOST_BITS_PER_LONG >= 32
936 typedef unsigned long gfc_char_t;
937 #elif defined(HAVE_LONG_LONG) && (HOST_BITS_PER_LONGLONG >= 32)
938 typedef unsigned long long gfc_char_t;
939 #else
940 # error "Cannot find an integer type with at least 32 bits"
941 #endif
942
943
944 /* The following three structures are used to identify a location in
945 the sources.
946
947 gfc_file is used to maintain a tree of the source files and how
948 they include each other
949
950 gfc_linebuf holds a single line of source code and information
951 which file it resides in
952
953 locus point to the sourceline and the character in the source
954 line.
955 */
956
957 typedef struct gfc_file
958 {
959 struct gfc_file *next, *up;
960 int inclusion_line, line;
961 char *filename;
962 } gfc_file;
963
964 typedef struct gfc_linebuf
965 {
966 location_t location;
967 struct gfc_file *file;
968 struct gfc_linebuf *next;
969
970 int truncated;
971 bool dbg_emitted;
972
973 gfc_char_t line[1];
974 } gfc_linebuf;
975
976 #define gfc_linebuf_header_size (offsetof (gfc_linebuf, line))
977
978 #define gfc_linebuf_linenum(LBUF) (LOCATION_LINE ((LBUF)->location))
979
980 typedef struct
981 {
982 gfc_char_t *nextc;
983 gfc_linebuf *lb;
984 } locus;
985
986 /* In order for the "gfc" format checking to work correctly, you must
987 have declared a typedef locus first. */
988 #if GCC_VERSION >= 4001
989 #define ATTRIBUTE_GCC_GFC(m, n) __attribute__ ((__format__ (__gcc_gfc__, m, n))) ATTRIBUTE_NONNULL(m)
990 #else
991 #define ATTRIBUTE_GCC_GFC(m, n) ATTRIBUTE_NONNULL(m)
992 #endif
993
994
995 /* Suppress error messages or re-enable them. */
996
997 void gfc_push_suppress_errors (void);
998 void gfc_pop_suppress_errors (void);
999
1000
1001 /* Character length structures hold the expression that gives the
1002 length of a character variable. We avoid putting these into
1003 gfc_typespec because doing so prevents us from doing structure
1004 copies and forces us to deallocate any typespecs we create, as well
1005 as structures that contain typespecs. They also can have multiple
1006 character typespecs pointing to them.
1007
1008 These structures form a singly linked list within the current
1009 namespace and are deallocated with the namespace. It is possible to
1010 end up with gfc_charlen structures that have nothing pointing to them. */
1011
1012 typedef struct gfc_charlen
1013 {
1014 struct gfc_expr *length;
1015 struct gfc_charlen *next;
1016 bool length_from_typespec; /* Length from explicit array ctor typespec? */
1017 tree backend_decl;
1018 tree passed_length; /* Length argument explicitly passed. */
1019
1020 int resolved;
1021 }
1022 gfc_charlen;
1023
1024 #define gfc_get_charlen() XCNEW (gfc_charlen)
1025
1026 /* Type specification structure. */
1027 typedef struct
1028 {
1029 bt type;
1030 int kind;
1031
1032 union
1033 {
1034 struct gfc_symbol *derived; /* For derived types only. */
1035 gfc_charlen *cl; /* For character types only. */
1036 int pad; /* For hollerith types only. */
1037 }
1038 u;
1039
1040 struct gfc_symbol *interface; /* For PROCEDURE declarations. */
1041 int is_c_interop;
1042 int is_iso_c;
1043 bt f90_type;
1044 bool deferred;
1045 gfc_symbol *interop_kind;
1046 }
1047 gfc_typespec;
1048
1049 /* Array specification. */
1050 typedef struct
1051 {
1052 int rank; /* A scalar has a rank of 0, an assumed-rank array has -1. */
1053 int corank;
1054 array_type type, cotype;
1055 struct gfc_expr *lower[GFC_MAX_DIMENSIONS], *upper[GFC_MAX_DIMENSIONS];
1056
1057 /* These two fields are used with the Cray Pointer extension. */
1058 bool cray_pointee; /* True iff this spec belongs to a cray pointee. */
1059 bool cp_was_assumed; /* AS_ASSUMED_SIZE cp arrays are converted to
1060 AS_EXPLICIT, but we want to remember that we
1061 did this. */
1062
1063 bool resolved;
1064 }
1065 gfc_array_spec;
1066
1067 #define gfc_get_array_spec() XCNEW (gfc_array_spec)
1068
1069
1070 /* Components of derived types. */
1071 typedef struct gfc_component
1072 {
1073 const char *name;
1074 gfc_typespec ts;
1075
1076 symbol_attribute attr;
1077 gfc_array_spec *as;
1078
1079 tree backend_decl;
1080 /* Used to cache a FIELD_DECL matching this same component
1081 but applied to a different backend containing type that was
1082 generated by gfc_nonrestricted_type. */
1083 tree norestrict_decl;
1084 locus loc;
1085 struct gfc_expr *initializer;
1086 /* Used in parameterized derived type declarations to store parameterized
1087 kind expressions. */
1088 struct gfc_expr *kind_expr;
1089 struct gfc_actual_arglist *param_list;
1090
1091 struct gfc_component *next;
1092
1093 /* Needed for procedure pointer components. */
1094 struct gfc_typebound_proc *tb;
1095 /* When allocatable/pointer and in a coarray the associated token. */
1096 tree caf_token;
1097 bool finalized;
1098 }
1099 gfc_component;
1100
1101 #define gfc_get_component() XCNEW (gfc_component)
1102
1103 /* Formal argument lists are lists of symbols. */
1104 typedef struct gfc_formal_arglist
1105 {
1106 /* Symbol representing the argument at this position in the arglist. */
1107 struct gfc_symbol *sym;
1108 /* Points to the next formal argument. */
1109 struct gfc_formal_arglist *next;
1110 }
1111 gfc_formal_arglist;
1112
1113 #define gfc_get_formal_arglist() XCNEW (gfc_formal_arglist)
1114
1115
1116 /* The gfc_actual_arglist structure is for actual arguments and
1117 for type parameter specification lists. */
1118 typedef struct gfc_actual_arglist
1119 {
1120 const char *name;
1121 /* Alternate return label when the expr member is null. */
1122 struct gfc_st_label *label;
1123
1124 /* This is set to the type of an eventual omitted optional
1125 argument. This is used to determine if a hidden string length
1126 argument has to be added to a function call. */
1127 bt missing_arg_type;
1128
1129 gfc_param_spec_type spec_type;
1130
1131 struct gfc_expr *expr;
1132 struct gfc_actual_arglist *next;
1133 }
1134 gfc_actual_arglist;
1135
1136 #define gfc_get_actual_arglist() XCNEW (gfc_actual_arglist)
1137
1138
1139 /* Because a symbol can belong to multiple namelists, they must be
1140 linked externally to the symbol itself. */
1141 typedef struct gfc_namelist
1142 {
1143 struct gfc_symbol *sym;
1144 struct gfc_namelist *next;
1145 }
1146 gfc_namelist;
1147
1148 #define gfc_get_namelist() XCNEW (gfc_namelist)
1149
1150 /* Likewise to gfc_namelist, but contains expressions. */
1151 typedef struct gfc_expr_list
1152 {
1153 struct gfc_expr *expr;
1154 struct gfc_expr_list *next;
1155 }
1156 gfc_expr_list;
1157
1158 #define gfc_get_expr_list() XCNEW (gfc_expr_list)
1159
1160 enum gfc_omp_reduction_op
1161 {
1162 OMP_REDUCTION_NONE = -1,
1163 OMP_REDUCTION_PLUS = INTRINSIC_PLUS,
1164 OMP_REDUCTION_MINUS = INTRINSIC_MINUS,
1165 OMP_REDUCTION_TIMES = INTRINSIC_TIMES,
1166 OMP_REDUCTION_AND = INTRINSIC_AND,
1167 OMP_REDUCTION_OR = INTRINSIC_OR,
1168 OMP_REDUCTION_EQV = INTRINSIC_EQV,
1169 OMP_REDUCTION_NEQV = INTRINSIC_NEQV,
1170 OMP_REDUCTION_MAX = GFC_INTRINSIC_END,
1171 OMP_REDUCTION_MIN,
1172 OMP_REDUCTION_IAND,
1173 OMP_REDUCTION_IOR,
1174 OMP_REDUCTION_IEOR,
1175 OMP_REDUCTION_USER
1176 };
1177
1178 enum gfc_omp_depend_op
1179 {
1180 OMP_DEPEND_IN,
1181 OMP_DEPEND_OUT,
1182 OMP_DEPEND_INOUT,
1183 OMP_DEPEND_SINK_FIRST,
1184 OMP_DEPEND_SINK
1185 };
1186
1187 enum gfc_omp_map_op
1188 {
1189 OMP_MAP_ALLOC,
1190 OMP_MAP_TO,
1191 OMP_MAP_FROM,
1192 OMP_MAP_TOFROM,
1193 OMP_MAP_DELETE,
1194 OMP_MAP_FORCE_ALLOC,
1195 OMP_MAP_FORCE_TO,
1196 OMP_MAP_FORCE_FROM,
1197 OMP_MAP_FORCE_TOFROM,
1198 OMP_MAP_FORCE_PRESENT,
1199 OMP_MAP_FORCE_DEVICEPTR,
1200 OMP_MAP_DEVICE_RESIDENT,
1201 OMP_MAP_LINK,
1202 OMP_MAP_RELEASE,
1203 OMP_MAP_ALWAYS_TO,
1204 OMP_MAP_ALWAYS_FROM,
1205 OMP_MAP_ALWAYS_TOFROM
1206 };
1207
1208 enum gfc_omp_linear_op
1209 {
1210 OMP_LINEAR_DEFAULT,
1211 OMP_LINEAR_REF,
1212 OMP_LINEAR_VAL,
1213 OMP_LINEAR_UVAL
1214 };
1215
1216 /* For use in OpenMP clauses in case we need extra information
1217 (aligned clause alignment, linear clause step, etc.). */
1218
1219 typedef struct gfc_omp_namelist
1220 {
1221 struct gfc_symbol *sym;
1222 struct gfc_expr *expr;
1223 union
1224 {
1225 gfc_omp_reduction_op reduction_op;
1226 gfc_omp_depend_op depend_op;
1227 gfc_omp_map_op map_op;
1228 gfc_omp_linear_op linear_op;
1229 struct gfc_common_head *common;
1230 } u;
1231 struct gfc_omp_namelist_udr *udr;
1232 struct gfc_omp_namelist *next;
1233 locus where;
1234 }
1235 gfc_omp_namelist;
1236
1237 #define gfc_get_omp_namelist() XCNEW (gfc_omp_namelist)
1238
1239 enum
1240 {
1241 OMP_LIST_FIRST,
1242 OMP_LIST_PRIVATE = OMP_LIST_FIRST,
1243 OMP_LIST_FIRSTPRIVATE,
1244 OMP_LIST_LASTPRIVATE,
1245 OMP_LIST_COPYPRIVATE,
1246 OMP_LIST_SHARED,
1247 OMP_LIST_COPYIN,
1248 OMP_LIST_UNIFORM,
1249 OMP_LIST_ALIGNED,
1250 OMP_LIST_LINEAR,
1251 OMP_LIST_DEPEND,
1252 OMP_LIST_MAP,
1253 OMP_LIST_TO,
1254 OMP_LIST_FROM,
1255 OMP_LIST_REDUCTION,
1256 OMP_LIST_DEVICE_RESIDENT,
1257 OMP_LIST_LINK,
1258 OMP_LIST_USE_DEVICE,
1259 OMP_LIST_CACHE,
1260 OMP_LIST_IS_DEVICE_PTR,
1261 OMP_LIST_USE_DEVICE_PTR,
1262 OMP_LIST_NUM
1263 };
1264
1265 /* Because a symbol can belong to multiple namelists, they must be
1266 linked externally to the symbol itself. */
1267
1268 enum gfc_omp_sched_kind
1269 {
1270 OMP_SCHED_NONE,
1271 OMP_SCHED_STATIC,
1272 OMP_SCHED_DYNAMIC,
1273 OMP_SCHED_GUIDED,
1274 OMP_SCHED_RUNTIME,
1275 OMP_SCHED_AUTO
1276 };
1277
1278 enum gfc_omp_default_sharing
1279 {
1280 OMP_DEFAULT_UNKNOWN,
1281 OMP_DEFAULT_NONE,
1282 OMP_DEFAULT_PRIVATE,
1283 OMP_DEFAULT_SHARED,
1284 OMP_DEFAULT_FIRSTPRIVATE,
1285 OMP_DEFAULT_PRESENT
1286 };
1287
1288 enum gfc_omp_proc_bind_kind
1289 {
1290 OMP_PROC_BIND_UNKNOWN,
1291 OMP_PROC_BIND_MASTER,
1292 OMP_PROC_BIND_SPREAD,
1293 OMP_PROC_BIND_CLOSE
1294 };
1295
1296 enum gfc_omp_cancel_kind
1297 {
1298 OMP_CANCEL_UNKNOWN,
1299 OMP_CANCEL_PARALLEL,
1300 OMP_CANCEL_SECTIONS,
1301 OMP_CANCEL_DO,
1302 OMP_CANCEL_TASKGROUP
1303 };
1304
1305 enum gfc_omp_if_kind
1306 {
1307 OMP_IF_PARALLEL,
1308 OMP_IF_TASK,
1309 OMP_IF_TASKLOOP,
1310 OMP_IF_TARGET,
1311 OMP_IF_TARGET_DATA,
1312 OMP_IF_TARGET_UPDATE,
1313 OMP_IF_TARGET_ENTER_DATA,
1314 OMP_IF_TARGET_EXIT_DATA,
1315 OMP_IF_LAST
1316 };
1317
1318 typedef struct gfc_omp_clauses
1319 {
1320 struct gfc_expr *if_expr;
1321 struct gfc_expr *final_expr;
1322 struct gfc_expr *num_threads;
1323 gfc_omp_namelist *lists[OMP_LIST_NUM];
1324 enum gfc_omp_sched_kind sched_kind;
1325 struct gfc_expr *chunk_size;
1326 enum gfc_omp_default_sharing default_sharing;
1327 int collapse, orderedc;
1328 bool nowait, ordered, untied, mergeable;
1329 bool inbranch, notinbranch, defaultmap, nogroup;
1330 bool sched_simd, sched_monotonic, sched_nonmonotonic;
1331 bool simd, threads, depend_source;
1332 enum gfc_omp_cancel_kind cancel;
1333 enum gfc_omp_proc_bind_kind proc_bind;
1334 struct gfc_expr *safelen_expr;
1335 struct gfc_expr *simdlen_expr;
1336 struct gfc_expr *num_teams;
1337 struct gfc_expr *device;
1338 struct gfc_expr *thread_limit;
1339 struct gfc_expr *grainsize;
1340 struct gfc_expr *hint;
1341 struct gfc_expr *num_tasks;
1342 struct gfc_expr *priority;
1343 struct gfc_expr *if_exprs[OMP_IF_LAST];
1344 enum gfc_omp_sched_kind dist_sched_kind;
1345 struct gfc_expr *dist_chunk_size;
1346 const char *critical_name;
1347
1348 /* OpenACC. */
1349 struct gfc_expr *async_expr;
1350 struct gfc_expr *gang_static_expr;
1351 struct gfc_expr *gang_num_expr;
1352 struct gfc_expr *worker_expr;
1353 struct gfc_expr *vector_expr;
1354 struct gfc_expr *num_gangs_expr;
1355 struct gfc_expr *num_workers_expr;
1356 struct gfc_expr *vector_length_expr;
1357 gfc_expr_list *wait_list;
1358 gfc_expr_list *tile_list;
1359 unsigned async:1, gang:1, worker:1, vector:1, seq:1, independent:1;
1360 unsigned par_auto:1, gang_static:1;
1361 unsigned if_present:1, finalize:1;
1362 locus loc;
1363
1364 }
1365 gfc_omp_clauses;
1366
1367 #define gfc_get_omp_clauses() XCNEW (gfc_omp_clauses)
1368
1369
1370 /* Node in the linked list used for storing !$oacc declare constructs. */
1371
1372 typedef struct gfc_oacc_declare
1373 {
1374 struct gfc_oacc_declare *next;
1375 bool module_var;
1376 gfc_omp_clauses *clauses;
1377 locus loc;
1378 }
1379 gfc_oacc_declare;
1380
1381 #define gfc_get_oacc_declare() XCNEW (gfc_oacc_declare)
1382
1383
1384 /* Node in the linked list used for storing !$omp declare simd constructs. */
1385
1386 typedef struct gfc_omp_declare_simd
1387 {
1388 struct gfc_omp_declare_simd *next;
1389 locus where; /* Where the !$omp declare simd construct occurred. */
1390
1391 gfc_symbol *proc_name;
1392
1393 gfc_omp_clauses *clauses;
1394 }
1395 gfc_omp_declare_simd;
1396 #define gfc_get_omp_declare_simd() XCNEW (gfc_omp_declare_simd)
1397
1398 typedef struct gfc_omp_udr
1399 {
1400 struct gfc_omp_udr *next;
1401 locus where; /* Where the !$omp declare reduction construct occurred. */
1402
1403 const char *name;
1404 gfc_typespec ts;
1405 gfc_omp_reduction_op rop;
1406
1407 struct gfc_symbol *omp_out;
1408 struct gfc_symbol *omp_in;
1409 struct gfc_namespace *combiner_ns;
1410
1411 struct gfc_symbol *omp_priv;
1412 struct gfc_symbol *omp_orig;
1413 struct gfc_namespace *initializer_ns;
1414 }
1415 gfc_omp_udr;
1416 #define gfc_get_omp_udr() XCNEW (gfc_omp_udr)
1417
1418 typedef struct gfc_omp_namelist_udr
1419 {
1420 struct gfc_omp_udr *udr;
1421 struct gfc_code *combiner;
1422 struct gfc_code *initializer;
1423 }
1424 gfc_omp_namelist_udr;
1425 #define gfc_get_omp_namelist_udr() XCNEW (gfc_omp_namelist_udr)
1426
1427 /* The gfc_st_label structure is a BBT attached to a namespace that
1428 records the usage of statement labels within that space. */
1429
1430 typedef struct gfc_st_label
1431 {
1432 BBT_HEADER(gfc_st_label);
1433
1434 int value;
1435
1436 gfc_sl_type defined, referenced;
1437
1438 struct gfc_expr *format;
1439
1440 tree backend_decl;
1441
1442 locus where;
1443
1444 gfc_namespace *ns;
1445 }
1446 gfc_st_label;
1447
1448
1449 /* gfc_interface()-- Interfaces are lists of symbols strung together. */
1450 typedef struct gfc_interface
1451 {
1452 struct gfc_symbol *sym;
1453 locus where;
1454 struct gfc_interface *next;
1455 }
1456 gfc_interface;
1457
1458 #define gfc_get_interface() XCNEW (gfc_interface)
1459
1460 /* User operator nodes. These are like stripped down symbols. */
1461 typedef struct
1462 {
1463 const char *name;
1464
1465 gfc_interface *op;
1466 struct gfc_namespace *ns;
1467 gfc_access access;
1468 }
1469 gfc_user_op;
1470
1471
1472 /* A list of specific bindings that are associated with a generic spec. */
1473 typedef struct gfc_tbp_generic
1474 {
1475 /* The parser sets specific_st, upon resolution we look for the corresponding
1476 gfc_typebound_proc and set specific for further use. */
1477 struct gfc_symtree* specific_st;
1478 struct gfc_typebound_proc* specific;
1479
1480 struct gfc_tbp_generic* next;
1481 bool is_operator;
1482 }
1483 gfc_tbp_generic;
1484
1485 #define gfc_get_tbp_generic() XCNEW (gfc_tbp_generic)
1486
1487
1488 /* Data needed for type-bound procedures. */
1489 typedef struct gfc_typebound_proc
1490 {
1491 locus where; /* Where the PROCEDURE/GENERIC definition was. */
1492
1493 union
1494 {
1495 struct gfc_symtree* specific; /* The interface if DEFERRED. */
1496 gfc_tbp_generic* generic;
1497 }
1498 u;
1499
1500 gfc_access access;
1501 const char* pass_arg; /* Argument-name for PASS. NULL if not specified. */
1502
1503 /* The overridden type-bound proc (or GENERIC with this name in the
1504 parent-type) or NULL if non. */
1505 struct gfc_typebound_proc* overridden;
1506
1507 /* Once resolved, we use the position of pass_arg in the formal arglist of
1508 the binding-target procedure to identify it. The first argument has
1509 number 1 here, the second 2, and so on. */
1510 unsigned pass_arg_num;
1511
1512 unsigned nopass:1; /* Whether we have NOPASS (PASS otherwise). */
1513 unsigned non_overridable:1;
1514 unsigned deferred:1;
1515 unsigned is_generic:1;
1516 unsigned function:1, subroutine:1;
1517 unsigned error:1; /* Ignore it, when an error occurred during resolution. */
1518 unsigned ppc:1;
1519 }
1520 gfc_typebound_proc;
1521
1522
1523 /* Symbol nodes. These are important things. They are what the
1524 standard refers to as "entities". The possibly multiple names that
1525 refer to the same entity are accomplished by a binary tree of
1526 symtree structures that is balanced by the red-black method-- more
1527 than one symtree node can point to any given symbol. */
1528
1529 typedef struct gfc_symbol
1530 {
1531 const char *name; /* Primary name, before renaming */
1532 const char *module; /* Module this symbol came from */
1533 locus declared_at;
1534
1535 gfc_typespec ts;
1536 symbol_attribute attr;
1537
1538 /* The formal member points to the formal argument list if the
1539 symbol is a function or subroutine name. If the symbol is a
1540 generic name, the generic member points to the list of
1541 interfaces. */
1542
1543 gfc_interface *generic;
1544 gfc_access component_access;
1545
1546 gfc_formal_arglist *formal;
1547 struct gfc_namespace *formal_ns;
1548 struct gfc_namespace *f2k_derived;
1549
1550 /* List of PDT parameter expressions */
1551 struct gfc_actual_arglist *param_list;
1552
1553 struct gfc_expr *value; /* Parameter/Initializer value */
1554 gfc_array_spec *as;
1555 struct gfc_symbol *result; /* function result symbol */
1556 gfc_component *components; /* Derived type components */
1557
1558 /* Defined only for Cray pointees; points to their pointer. */
1559 struct gfc_symbol *cp_pointer;
1560
1561 int entry_id; /* Used in resolve.c for entries. */
1562
1563 /* CLASS hashed name for declared and dynamic types in the class. */
1564 int hash_value;
1565
1566 struct gfc_symbol *common_next; /* Links for COMMON syms */
1567
1568 /* This is only used for pointer comparisons to check if symbols
1569 are in the same common block.
1570 In opposition to common_block, the common_head pointer takes into account
1571 equivalences: if A is in a common block C and A and B are in equivalence,
1572 then both A and B have common_head pointing to C, while A's common_block
1573 points to C and B's is NULL. */
1574 struct gfc_common_head* common_head;
1575
1576 /* Make sure setup code for dummy arguments is generated in the correct
1577 order. */
1578 int dummy_order;
1579
1580 gfc_namelist *namelist, *namelist_tail;
1581
1582 /* Change management fields. Symbols that might be modified by the
1583 current statement have the mark member nonzero. Of these symbols,
1584 symbols with old_symbol equal to NULL are symbols created within
1585 the current statement. Otherwise, old_symbol points to a copy of
1586 the old symbol. gfc_new is used in symbol.c to flag new symbols. */
1587 struct gfc_symbol *old_symbol;
1588 unsigned mark:1, gfc_new:1;
1589
1590 /* The tlink field is used in the front end to carry the module
1591 declaration of separate module procedures so that the characteristics
1592 can be compared with the corresponding declaration in a submodule. In
1593 translation this field carries a linked list of symbols that require
1594 deferred initialization. */
1595 struct gfc_symbol *tlink;
1596
1597 /* Nonzero if all equivalences associated with this symbol have been
1598 processed. */
1599 unsigned equiv_built:1;
1600 /* Set if this variable is used as an index name in a FORALL. */
1601 unsigned forall_index:1;
1602 /* Set if the symbol is used in a function result specification . */
1603 unsigned fn_result_spec:1;
1604 /* Used to avoid multiple resolutions of a single symbol. */
1605 unsigned resolved:1;
1606 /* Set if this is a module function or subroutine with the
1607 abreviated declaration in a submodule. */
1608 unsigned abr_modproc_decl:1;
1609
1610 int refs;
1611 struct gfc_namespace *ns; /* namespace containing this symbol */
1612
1613 tree backend_decl;
1614
1615 /* Identity of the intrinsic module the symbol comes from, or
1616 INTMOD_NONE if it's not imported from a intrinsic module. */
1617 intmod_id from_intmod;
1618 /* Identity of the symbol from intrinsic modules, from enums maintained
1619 separately by each intrinsic module. Used together with from_intmod,
1620 it uniquely identifies a symbol from an intrinsic module. */
1621 int intmod_sym_id;
1622
1623 /* This may be repetitive, since the typespec now has a binding
1624 label field. */
1625 const char* binding_label;
1626 /* Store a reference to the common_block, if this symbol is in one. */
1627 struct gfc_common_head *common_block;
1628
1629 /* Link to corresponding association-list if this is an associate name. */
1630 struct gfc_association_list *assoc;
1631
1632 /* Link to next entry in derived type list */
1633 struct gfc_symbol *dt_next;
1634 }
1635 gfc_symbol;
1636
1637
1638 struct gfc_undo_change_set
1639 {
1640 vec<gfc_symbol *> syms;
1641 vec<gfc_typebound_proc *> tbps;
1642 gfc_undo_change_set *previous;
1643 };
1644
1645
1646 /* This structure is used to keep track of symbols in common blocks. */
1647 typedef struct gfc_common_head
1648 {
1649 locus where;
1650 char use_assoc, saved, threadprivate;
1651 unsigned char omp_declare_target : 1;
1652 unsigned char omp_declare_target_link : 1;
1653 char name[GFC_MAX_SYMBOL_LEN + 1];
1654 struct gfc_symbol *head;
1655 const char* binding_label;
1656 int is_bind_c;
1657 int refs;
1658 }
1659 gfc_common_head;
1660
1661 #define gfc_get_common_head() XCNEW (gfc_common_head)
1662
1663
1664 /* A list of all the alternate entry points for a procedure. */
1665
1666 typedef struct gfc_entry_list
1667 {
1668 /* The symbol for this entry point. */
1669 gfc_symbol *sym;
1670 /* The zero-based id of this entry point. */
1671 int id;
1672 /* The LABEL_EXPR marking this entry point. */
1673 tree label;
1674 /* The next item in the list. */
1675 struct gfc_entry_list *next;
1676 }
1677 gfc_entry_list;
1678
1679 #define gfc_get_entry_list() XCNEW (gfc_entry_list)
1680
1681 /* Lists of rename info for the USE statement. */
1682
1683 typedef struct gfc_use_rename
1684 {
1685 char local_name[GFC_MAX_SYMBOL_LEN + 1], use_name[GFC_MAX_SYMBOL_LEN + 1];
1686 struct gfc_use_rename *next;
1687 int found;
1688 gfc_intrinsic_op op;
1689 locus where;
1690 }
1691 gfc_use_rename;
1692
1693 #define gfc_get_use_rename() XCNEW (gfc_use_rename);
1694
1695 /* A list of all USE statements in a namespace. */
1696
1697 typedef struct gfc_use_list
1698 {
1699 const char *module_name;
1700 const char *submodule_name;
1701 bool intrinsic;
1702 bool non_intrinsic;
1703 bool only_flag;
1704 struct gfc_use_rename *rename;
1705 locus where;
1706 /* Next USE statement. */
1707 struct gfc_use_list *next;
1708 }
1709 gfc_use_list;
1710
1711 #define gfc_get_use_list() XCNEW (gfc_use_list)
1712
1713 /* Within a namespace, symbols are pointed to by symtree nodes that
1714 are linked together in a balanced binary tree. There can be
1715 several symtrees pointing to the same symbol node via USE
1716 statements. */
1717
1718 typedef struct gfc_symtree
1719 {
1720 BBT_HEADER (gfc_symtree);
1721 const char *name;
1722 int ambiguous;
1723 union
1724 {
1725 gfc_symbol *sym; /* Symbol associated with this node */
1726 gfc_user_op *uop;
1727 gfc_common_head *common;
1728 gfc_typebound_proc *tb;
1729 gfc_omp_udr *omp_udr;
1730 }
1731 n;
1732 }
1733 gfc_symtree;
1734
1735 /* A list of all derived types. */
1736 extern gfc_symbol *gfc_derived_types;
1737
1738 typedef struct gfc_oacc_routine_name
1739 {
1740 struct gfc_symbol *sym;
1741 struct gfc_omp_clauses *clauses;
1742 struct gfc_oacc_routine_name *next;
1743 locus loc;
1744 }
1745 gfc_oacc_routine_name;
1746
1747 #define gfc_get_oacc_routine_name() XCNEW (gfc_oacc_routine_name)
1748
1749 /* A namespace describes the contents of procedure, module, interface block
1750 or BLOCK construct. */
1751 /* ??? Anything else use these? */
1752
1753 typedef struct gfc_namespace
1754 {
1755 /* Tree containing all the symbols in this namespace. */
1756 gfc_symtree *sym_root;
1757 /* Tree containing all the user-defined operators in the namespace. */
1758 gfc_symtree *uop_root;
1759 /* Tree containing all the common blocks. */
1760 gfc_symtree *common_root;
1761 /* Tree containing all the OpenMP user defined reductions. */
1762 gfc_symtree *omp_udr_root;
1763
1764 /* Tree containing type-bound procedures. */
1765 gfc_symtree *tb_sym_root;
1766 /* Type-bound user operators. */
1767 gfc_symtree *tb_uop_root;
1768 /* For derived-types, store type-bound intrinsic operators here. */
1769 gfc_typebound_proc *tb_op[GFC_INTRINSIC_OPS];
1770 /* Linked list of finalizer procedures. */
1771 struct gfc_finalizer *finalizers;
1772
1773 /* If set_flag[letter] is set, an implicit type has been set for letter. */
1774 int set_flag[GFC_LETTERS];
1775 /* Keeps track of the implicit types associated with the letters. */
1776 gfc_typespec default_type[GFC_LETTERS];
1777 /* Store the positions of IMPLICIT statements. */
1778 locus implicit_loc[GFC_LETTERS];
1779
1780 /* If this is a namespace of a procedure, this points to the procedure. */
1781 struct gfc_symbol *proc_name;
1782 /* If this is the namespace of a unit which contains executable
1783 code, this points to it. */
1784 struct gfc_code *code;
1785
1786 /* Points to the equivalences set up in this namespace. */
1787 struct gfc_equiv *equiv, *old_equiv;
1788
1789 /* Points to the equivalence groups produced by trans_common. */
1790 struct gfc_equiv_list *equiv_lists;
1791
1792 gfc_interface *op[GFC_INTRINSIC_OPS];
1793
1794 /* Points to the parent namespace, i.e. the namespace of a module or
1795 procedure in which the procedure belonging to this namespace is
1796 contained. The parent namespace points to this namespace either
1797 directly via CONTAINED, or indirectly via the chain built by
1798 SIBLING. */
1799 struct gfc_namespace *parent;
1800 /* CONTAINED points to the first contained namespace. Sibling
1801 namespaces are chained via SIBLING. */
1802 struct gfc_namespace *contained, *sibling;
1803
1804 gfc_common_head blank_common;
1805 gfc_access default_access, operator_access[GFC_INTRINSIC_OPS];
1806
1807 gfc_st_label *st_labels;
1808 /* This list holds information about all the data initializers in
1809 this namespace. */
1810 struct gfc_data *data, *old_data;
1811
1812 /* !$ACC DECLARE. */
1813 gfc_oacc_declare *oacc_declare;
1814
1815 /* !$ACC ROUTINE clauses. */
1816 gfc_omp_clauses *oacc_routine_clauses;
1817
1818 /* !$ACC ROUTINE names. */
1819 gfc_oacc_routine_name *oacc_routine_names;
1820
1821 gfc_charlen *cl_list;
1822
1823 gfc_symbol *derived_types;
1824
1825 int save_all, seen_save, seen_implicit_none;
1826
1827 /* Normally we don't need to refcount namespaces. However when we read
1828 a module containing a function with multiple entry points, this
1829 will appear as several functions with the same formal namespace. */
1830 int refs;
1831
1832 /* A list of all alternate entry points to this procedure (or NULL). */
1833 gfc_entry_list *entries;
1834
1835 /* A list of USE statements in this namespace. */
1836 gfc_use_list *use_stmts;
1837
1838 /* Linked list of !$omp declare simd constructs. */
1839 struct gfc_omp_declare_simd *omp_declare_simd;
1840
1841 /* Set to 1 if namespace is a BLOCK DATA program unit. */
1842 unsigned is_block_data:1;
1843
1844 /* Set to 1 if namespace is an interface body with "IMPORT" used. */
1845 unsigned has_import_set:1;
1846
1847 /* Set to 1 if the namespace uses "IMPLICT NONE (export)". */
1848 unsigned has_implicit_none_export:1;
1849
1850 /* Set to 1 if resolved has been called for this namespace.
1851 Holds -1 during resolution. */
1852 signed resolved:2;
1853
1854 /* Set when resolve_types has been called for this namespace. */
1855 unsigned types_resolved:1;
1856
1857 /* Set to 1 if code has been generated for this namespace. */
1858 unsigned translated:1;
1859
1860 /* Set to 1 if symbols in this namespace should be 'construct entities',
1861 i.e. for BLOCK local variables. */
1862 unsigned construct_entities:1;
1863
1864 /* Set to 1 for !$OMP DECLARE REDUCTION namespaces. */
1865 unsigned omp_udr_ns:1;
1866
1867 /* Set to 1 for !$ACC ROUTINE namespaces. */
1868 unsigned oacc_routine:1;
1869 }
1870 gfc_namespace;
1871
1872 extern gfc_namespace *gfc_current_ns;
1873 extern gfc_namespace *gfc_global_ns_list;
1874
1875 /* Global symbols are symbols of global scope. Currently we only use
1876 this to detect collisions already when parsing.
1877 TODO: Extend to verify procedure calls. */
1878
1879 enum gfc_symbol_type
1880 {
1881 GSYM_UNKNOWN=1, GSYM_PROGRAM, GSYM_FUNCTION, GSYM_SUBROUTINE,
1882 GSYM_MODULE, GSYM_COMMON, GSYM_BLOCK_DATA
1883 };
1884
1885 typedef struct gfc_gsymbol
1886 {
1887 BBT_HEADER(gfc_gsymbol);
1888
1889 const char *name;
1890 const char *sym_name;
1891 const char *mod_name;
1892 const char *binding_label;
1893 enum gfc_symbol_type type;
1894
1895 int defined, used;
1896 bool bind_c;
1897 locus where;
1898 gfc_namespace *ns;
1899 }
1900 gfc_gsymbol;
1901
1902 extern gfc_gsymbol *gfc_gsym_root;
1903
1904 /* Information on interfaces being built. */
1905 typedef struct
1906 {
1907 interface_type type;
1908 gfc_symbol *sym;
1909 gfc_namespace *ns;
1910 gfc_user_op *uop;
1911 gfc_intrinsic_op op;
1912 }
1913 gfc_interface_info;
1914
1915 extern gfc_interface_info current_interface;
1916
1917
1918 /* Array reference. */
1919
1920 enum gfc_array_ref_dimen_type
1921 {
1922 DIMEN_ELEMENT = 1, DIMEN_RANGE, DIMEN_VECTOR, DIMEN_STAR, DIMEN_THIS_IMAGE, DIMEN_UNKNOWN
1923 };
1924
1925 typedef struct gfc_array_ref
1926 {
1927 ar_type type;
1928 int dimen; /* # of components in the reference */
1929 int codimen;
1930 bool in_allocate; /* For coarray checks. */
1931 gfc_expr *team;
1932 gfc_expr *stat;
1933 locus where;
1934 gfc_array_spec *as;
1935
1936 locus c_where[GFC_MAX_DIMENSIONS]; /* All expressions can be NULL */
1937 struct gfc_expr *start[GFC_MAX_DIMENSIONS], *end[GFC_MAX_DIMENSIONS],
1938 *stride[GFC_MAX_DIMENSIONS];
1939
1940 enum gfc_array_ref_dimen_type dimen_type[GFC_MAX_DIMENSIONS];
1941 }
1942 gfc_array_ref;
1943
1944 #define gfc_get_array_ref() XCNEW (gfc_array_ref)
1945
1946
1947 /* Component reference nodes. A variable is stored as an expression
1948 node that points to the base symbol. After that, a singly linked
1949 list of component reference nodes gives the variable's complete
1950 resolution. The array_ref component may be present and comes
1951 before the component component. */
1952
1953 enum ref_type
1954 { REF_ARRAY, REF_COMPONENT, REF_SUBSTRING, REF_INQUIRY };
1955
1956 enum inquiry_type
1957 { INQUIRY_RE, INQUIRY_IM, INQUIRY_KIND, INQUIRY_LEN };
1958
1959 typedef struct gfc_ref
1960 {
1961 ref_type type;
1962
1963 union
1964 {
1965 struct gfc_array_ref ar;
1966
1967 struct
1968 {
1969 gfc_component *component;
1970 gfc_symbol *sym;
1971 }
1972 c;
1973
1974 struct
1975 {
1976 struct gfc_expr *start, *end; /* Substring */
1977 gfc_charlen *length;
1978 }
1979 ss;
1980
1981 inquiry_type i;
1982
1983 }
1984 u;
1985
1986 struct gfc_ref *next;
1987 }
1988 gfc_ref;
1989
1990 #define gfc_get_ref() XCNEW (gfc_ref)
1991
1992
1993 /* Structures representing intrinsic symbols and their arguments lists. */
1994 typedef struct gfc_intrinsic_arg
1995 {
1996 char name[GFC_MAX_SYMBOL_LEN + 1];
1997
1998 gfc_typespec ts;
1999 unsigned optional:1, value:1;
2000 ENUM_BITFIELD (sym_intent) intent:2;
2001 gfc_actual_arglist *actual;
2002
2003 struct gfc_intrinsic_arg *next;
2004
2005 }
2006 gfc_intrinsic_arg;
2007
2008
2009 /* Specifies the various kinds of check functions used to verify the
2010 argument lists of intrinsic functions. fX with X an integer refer
2011 to check functions of intrinsics with X arguments. f1m is used for
2012 the MAX and MIN intrinsics which can have an arbitrary number of
2013 arguments, f4ml is used for the MINLOC and MAXLOC intrinsics as
2014 these have special semantics. */
2015
2016 typedef union
2017 {
2018 bool (*f0)(void);
2019 bool (*f1)(struct gfc_expr *);
2020 bool (*f1m)(gfc_actual_arglist *);
2021 bool (*f2)(struct gfc_expr *, struct gfc_expr *);
2022 bool (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2023 bool (*f5ml)(gfc_actual_arglist *);
2024 bool (*f6fl)(gfc_actual_arglist *);
2025 bool (*f3red)(gfc_actual_arglist *);
2026 bool (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2027 struct gfc_expr *);
2028 bool (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2029 struct gfc_expr *, struct gfc_expr *);
2030 }
2031 gfc_check_f;
2032
2033 /* Like gfc_check_f, these specify the type of the simplification
2034 function associated with an intrinsic. The fX are just like in
2035 gfc_check_f. cc is used for type conversion functions. */
2036
2037 typedef union
2038 {
2039 struct gfc_expr *(*f0)(void);
2040 struct gfc_expr *(*f1)(struct gfc_expr *);
2041 struct gfc_expr *(*f2)(struct gfc_expr *, struct gfc_expr *);
2042 struct gfc_expr *(*f3)(struct gfc_expr *, struct gfc_expr *,
2043 struct gfc_expr *);
2044 struct gfc_expr *(*f4)(struct gfc_expr *, struct gfc_expr *,
2045 struct gfc_expr *, struct gfc_expr *);
2046 struct gfc_expr *(*f5)(struct gfc_expr *, struct gfc_expr *,
2047 struct gfc_expr *, struct gfc_expr *,
2048 struct gfc_expr *);
2049 struct gfc_expr *(*f6)(struct gfc_expr *, struct gfc_expr *,
2050 struct gfc_expr *, struct gfc_expr *,
2051 struct gfc_expr *, struct gfc_expr *);
2052 struct gfc_expr *(*cc)(struct gfc_expr *, bt, int);
2053 }
2054 gfc_simplify_f;
2055
2056 /* Again like gfc_check_f, these specify the type of the resolution
2057 function associated with an intrinsic. The fX are just like in
2058 gfc_check_f. f1m is used for MIN and MAX, s1 is used for abort(). */
2059
2060 typedef union
2061 {
2062 void (*f0)(struct gfc_expr *);
2063 void (*f1)(struct gfc_expr *, struct gfc_expr *);
2064 void (*f1m)(struct gfc_expr *, struct gfc_actual_arglist *);
2065 void (*f2)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2066 void (*f3)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2067 struct gfc_expr *);
2068 void (*f4)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2069 struct gfc_expr *, struct gfc_expr *);
2070 void (*f5)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2071 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *);
2072 void (*f6)(struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2073 struct gfc_expr *, struct gfc_expr *, struct gfc_expr *,
2074 struct gfc_expr *);
2075 void (*s1)(struct gfc_code *);
2076 }
2077 gfc_resolve_f;
2078
2079
2080 typedef struct gfc_intrinsic_sym
2081 {
2082 const char *name, *lib_name;
2083 gfc_intrinsic_arg *formal;
2084 gfc_typespec ts;
2085 unsigned elemental:1, inquiry:1, transformational:1, pure:1,
2086 generic:1, specific:1, actual_ok:1, noreturn:1, conversion:1,
2087 from_module:1, vararg:1;
2088
2089 int standard;
2090
2091 gfc_simplify_f simplify;
2092 gfc_check_f check;
2093 gfc_resolve_f resolve;
2094 struct gfc_intrinsic_sym *specific_head, *next;
2095 gfc_isym_id id;
2096
2097 }
2098 gfc_intrinsic_sym;
2099
2100
2101 /* Expression nodes. The expression node types deserve explanations,
2102 since the last couple can be easily misconstrued:
2103
2104 EXPR_OP Operator node pointing to one or two other nodes
2105 EXPR_FUNCTION Function call, symbol points to function's name
2106 EXPR_CONSTANT A scalar constant: Logical, String, Real, Int or Complex
2107 EXPR_VARIABLE An Lvalue with a root symbol and possible reference list
2108 which expresses structure, array and substring refs.
2109 EXPR_NULL The NULL pointer value (which also has a basic type).
2110 EXPR_SUBSTRING A substring of a constant string
2111 EXPR_STRUCTURE A structure constructor
2112 EXPR_ARRAY An array constructor.
2113 EXPR_COMPCALL Function (or subroutine) call of a procedure pointer
2114 component or type-bound procedure. */
2115
2116 #include <mpfr.h>
2117 #include <mpc.h>
2118 #define GFC_RND_MODE GMP_RNDN
2119 #define GFC_MPC_RND_MODE MPC_RNDNN
2120
2121 typedef splay_tree gfc_constructor_base;
2122
2123
2124 /* This should be an unsigned variable of type size_t. But to handle
2125 compiling to a 64-bit target from a 32-bit host, we need to use a
2126 HOST_WIDE_INT. Also, occasionally the string length field is used
2127 as a flag with values -1 and -2, see e.g. gfc_add_assign_aux_vars.
2128 So it needs to be signed. */
2129 typedef HOST_WIDE_INT gfc_charlen_t;
2130
2131 typedef struct gfc_expr
2132 {
2133 expr_t expr_type;
2134
2135 gfc_typespec ts; /* These two refer to the overall expression */
2136
2137 int rank; /* 0 indicates a scalar, -1 an assumed-rank array. */
2138 mpz_t *shape; /* Can be NULL if shape is unknown at compile time */
2139
2140 /* Nonnull for functions and structure constructors, may also used to hold the
2141 base-object for component calls. */
2142 gfc_symtree *symtree;
2143
2144 gfc_ref *ref;
2145
2146 locus where;
2147
2148 /* Used to store the base expression in component calls, when the expression
2149 is not a variable. */
2150 struct gfc_expr *base_expr;
2151
2152 /* is_boz is true if the integer is regarded as BOZ bit pattern and is_snan
2153 denotes a signalling not-a-number. */
2154 unsigned int is_boz : 1, is_snan : 1;
2155
2156 /* Sometimes, when an error has been emitted, it is necessary to prevent
2157 it from recurring. */
2158 unsigned int error : 1;
2159
2160 /* Mark an expression where a user operator has been substituted by
2161 a function call in interface.c(gfc_extend_expr). */
2162 unsigned int user_operator : 1;
2163
2164 /* Mark an expression as being a MOLD argument of ALLOCATE. */
2165 unsigned int mold : 1;
2166
2167 /* Will require finalization after use. */
2168 unsigned int must_finalize : 1;
2169
2170 /* Set this if no range check should be performed on this expression. */
2171
2172 unsigned int no_bounds_check : 1;
2173
2174 /* Set this if a matmul expression has already been evaluated for conversion
2175 to a BLAS call. */
2176
2177 unsigned int external_blas : 1;
2178
2179 /* Set this if resolution has already happened. It could be harmful
2180 if done again. */
2181
2182 unsigned int do_not_resolve_again : 1;
2183
2184 /* Set this if no warning should be given somewhere in a lower level. */
2185
2186 unsigned int do_not_warn : 1;
2187 /* If an expression comes from a Hollerith constant or compile-time
2188 evaluation of a transfer statement, it may have a prescribed target-
2189 memory representation, and these cannot always be backformed from
2190 the value. */
2191 struct
2192 {
2193 gfc_charlen_t length;
2194 char *string;
2195 }
2196 representation;
2197
2198 union
2199 {
2200 int logical;
2201
2202 io_kind iokind;
2203
2204 mpz_t integer;
2205
2206 mpfr_t real;
2207
2208 mpc_t complex;
2209
2210 struct
2211 {
2212 gfc_intrinsic_op op;
2213 gfc_user_op *uop;
2214 struct gfc_expr *op1, *op2;
2215 }
2216 op;
2217
2218 struct
2219 {
2220 gfc_actual_arglist *actual;
2221 const char *name; /* Points to the ultimate name of the function */
2222 gfc_intrinsic_sym *isym;
2223 gfc_symbol *esym;
2224 }
2225 function;
2226
2227 struct
2228 {
2229 gfc_actual_arglist* actual;
2230 const char* name;
2231 /* Base-object, whose component was called. NULL means that it should
2232 be taken from symtree/ref. */
2233 struct gfc_expr* base_object;
2234 gfc_typebound_proc* tbp; /* Should overlap with esym. */
2235
2236 /* For type-bound operators, we want to call PASS procedures but already
2237 have the full arglist; mark this, so that it is not extended by the
2238 PASS argument. */
2239 unsigned ignore_pass:1;
2240
2241 /* Do assign-calls rather than calls, that is appropriate dependency
2242 checking. */
2243 unsigned assign:1;
2244 }
2245 compcall;
2246
2247 struct
2248 {
2249 gfc_charlen_t length;
2250 gfc_char_t *string;
2251 }
2252 character;
2253
2254 gfc_constructor_base constructor;
2255 }
2256 value;
2257
2258 /* Used to store PDT expression lists associated with expressions. */
2259 gfc_actual_arglist *param_list;
2260
2261 }
2262 gfc_expr;
2263
2264
2265 #define gfc_get_shape(rank) (XCNEWVEC (mpz_t, (rank)))
2266
2267 /* Structures for information associated with different kinds of
2268 numbers. The first set of integer parameters define all there is
2269 to know about a particular kind. The rest of the elements are
2270 computed from the first elements. */
2271
2272 typedef struct
2273 {
2274 /* Values really representable by the target. */
2275 mpz_t huge, pedantic_min_int, min_int;
2276
2277 int kind, radix, digits, bit_size, range;
2278
2279 /* True if the C type of the given name maps to this precision.
2280 Note that more than one bit can be set. */
2281 unsigned int c_char : 1;
2282 unsigned int c_short : 1;
2283 unsigned int c_int : 1;
2284 unsigned int c_long : 1;
2285 unsigned int c_long_long : 1;
2286 }
2287 gfc_integer_info;
2288
2289 extern gfc_integer_info gfc_integer_kinds[];
2290
2291
2292 typedef struct
2293 {
2294 int kind, bit_size;
2295
2296 /* True if the C++ type bool, C99 type _Bool, maps to this precision. */
2297 unsigned int c_bool : 1;
2298 }
2299 gfc_logical_info;
2300
2301 extern gfc_logical_info gfc_logical_kinds[];
2302
2303
2304 typedef struct
2305 {
2306 mpfr_t epsilon, huge, tiny, subnormal;
2307 int kind, radix, digits, min_exponent, max_exponent;
2308 int range, precision;
2309
2310 /* The precision of the type as reported by GET_MODE_PRECISION. */
2311 int mode_precision;
2312
2313 /* True if the C type of the given name maps to this precision.
2314 Note that more than one bit can be set. */
2315 unsigned int c_float : 1;
2316 unsigned int c_double : 1;
2317 unsigned int c_long_double : 1;
2318 unsigned int c_float128 : 1;
2319 }
2320 gfc_real_info;
2321
2322 extern gfc_real_info gfc_real_kinds[];
2323
2324 typedef struct
2325 {
2326 int kind, bit_size;
2327 const char *name;
2328 }
2329 gfc_character_info;
2330
2331 extern gfc_character_info gfc_character_kinds[];
2332
2333
2334 /* Equivalence structures. Equivalent lvalues are linked along the
2335 *eq pointer, equivalence sets are strung along the *next node. */
2336 typedef struct gfc_equiv
2337 {
2338 struct gfc_equiv *next, *eq;
2339 gfc_expr *expr;
2340 const char *module;
2341 int used;
2342 }
2343 gfc_equiv;
2344
2345 #define gfc_get_equiv() XCNEW (gfc_equiv)
2346
2347 /* Holds a single equivalence member after processing. */
2348 typedef struct gfc_equiv_info
2349 {
2350 gfc_symbol *sym;
2351 HOST_WIDE_INT offset;
2352 HOST_WIDE_INT length;
2353 struct gfc_equiv_info *next;
2354 } gfc_equiv_info;
2355
2356 /* Holds equivalence groups, after they have been processed. */
2357 typedef struct gfc_equiv_list
2358 {
2359 gfc_equiv_info *equiv;
2360 struct gfc_equiv_list *next;
2361 } gfc_equiv_list;
2362
2363 /* gfc_case stores the selector list of a case statement. The *low
2364 and *high pointers can point to the same expression in the case of
2365 a single value. If *high is NULL, the selection is from *low
2366 upwards, if *low is NULL the selection is *high downwards.
2367
2368 This structure has separate fields to allow single and double linked
2369 lists of CASEs at the same time. The singe linked list along the NEXT
2370 field is a list of cases for a single CASE label. The double linked
2371 list along the LEFT/RIGHT fields is used to detect overlap and to
2372 build a table of the cases for SELECT constructs with a CHARACTER
2373 case expression. */
2374
2375 typedef struct gfc_case
2376 {
2377 /* Where we saw this case. */
2378 locus where;
2379 int n;
2380
2381 /* Case range values. If (low == high), it's a single value. If one of
2382 the labels is NULL, it's an unbounded case. If both are NULL, this
2383 represents the default case. */
2384 gfc_expr *low, *high;
2385
2386 /* Only used for SELECT TYPE. */
2387 gfc_typespec ts;
2388
2389 /* Next case label in the list of cases for a single CASE label. */
2390 struct gfc_case *next;
2391
2392 /* Used for detecting overlap, and for code generation. */
2393 struct gfc_case *left, *right;
2394
2395 /* True if this case label can never be matched. */
2396 int unreachable;
2397 }
2398 gfc_case;
2399
2400 #define gfc_get_case() XCNEW (gfc_case)
2401
2402
2403 typedef struct
2404 {
2405 gfc_expr *var, *start, *end, *step;
2406 unsigned short unroll;
2407 }
2408 gfc_iterator;
2409
2410 #define gfc_get_iterator() XCNEW (gfc_iterator)
2411
2412
2413 /* Allocation structure for ALLOCATE, DEALLOCATE and NULLIFY statements. */
2414
2415 typedef struct gfc_alloc
2416 {
2417 gfc_expr *expr;
2418 struct gfc_alloc *next;
2419 }
2420 gfc_alloc;
2421
2422 #define gfc_get_alloc() XCNEW (gfc_alloc)
2423
2424
2425 typedef struct
2426 {
2427 gfc_expr *unit, *file, *status, *access, *form, *recl,
2428 *blank, *position, *action, *delim, *pad, *iostat, *iomsg, *convert,
2429 *decimal, *encoding, *round, *sign, *asynchronous, *id, *newunit,
2430 *share, *cc;
2431 char readonly;
2432 gfc_st_label *err;
2433 }
2434 gfc_open;
2435
2436
2437 typedef struct
2438 {
2439 gfc_expr *unit, *status, *iostat, *iomsg;
2440 gfc_st_label *err;
2441 }
2442 gfc_close;
2443
2444
2445 typedef struct
2446 {
2447 gfc_expr *unit, *iostat, *iomsg;
2448 gfc_st_label *err;
2449 }
2450 gfc_filepos;
2451
2452
2453 typedef struct
2454 {
2455 gfc_expr *unit, *file, *iostat, *exist, *opened, *number, *named,
2456 *name, *access, *sequential, *direct, *form, *formatted,
2457 *unformatted, *recl, *nextrec, *blank, *position, *action, *read,
2458 *write, *readwrite, *delim, *pad, *iolength, *iomsg, *convert, *strm_pos,
2459 *asynchronous, *decimal, *encoding, *pending, *round, *sign, *size, *id,
2460 *iqstream, *share, *cc;
2461
2462 gfc_st_label *err;
2463
2464 }
2465 gfc_inquire;
2466
2467
2468 typedef struct
2469 {
2470 gfc_expr *unit, *iostat, *iomsg, *id;
2471 gfc_st_label *err, *end, *eor;
2472 }
2473 gfc_wait;
2474
2475
2476 typedef struct
2477 {
2478 gfc_expr *io_unit, *format_expr, *rec, *advance, *iostat, *size, *iomsg,
2479 *id, *pos, *asynchronous, *blank, *decimal, *delim, *pad, *round,
2480 *sign, *extra_comma, *dt_io_kind, *udtio;
2481 char dec_ext;
2482
2483 gfc_symbol *namelist;
2484 /* A format_label of `format_asterisk' indicates the "*" format */
2485 gfc_st_label *format_label;
2486 gfc_st_label *err, *end, *eor;
2487
2488 locus eor_where, end_where, err_where;
2489 }
2490 gfc_dt;
2491
2492
2493 typedef struct gfc_forall_iterator
2494 {
2495 gfc_expr *var, *start, *end, *stride;
2496 struct gfc_forall_iterator *next;
2497 }
2498 gfc_forall_iterator;
2499
2500
2501 /* Linked list to store associations in an ASSOCIATE statement. */
2502
2503 typedef struct gfc_association_list
2504 {
2505 struct gfc_association_list *next;
2506
2507 /* Whether this is association to a variable that can be changed; otherwise,
2508 it's association to an expression and the name may not be used as
2509 lvalue. */
2510 unsigned variable:1;
2511
2512 /* True if this struct is currently only linked to from a gfc_symbol rather
2513 than as part of a real list in gfc_code->ext.block.assoc. This may
2514 happen for SELECT TYPE temporaries and must be considered
2515 for memory handling. */
2516 unsigned dangling:1;
2517
2518 /* True when the rank of the target expression is guessed during parsing. */
2519 unsigned rankguessed:1;
2520
2521 char name[GFC_MAX_SYMBOL_LEN + 1];
2522 gfc_symtree *st; /* Symtree corresponding to name. */
2523 locus where;
2524
2525 gfc_expr *target;
2526 }
2527 gfc_association_list;
2528 #define gfc_get_association_list() XCNEW (gfc_association_list)
2529
2530
2531 /* Executable statements that fill gfc_code structures. */
2532 enum gfc_exec_op
2533 {
2534 EXEC_NOP = 1, EXEC_END_NESTED_BLOCK, EXEC_END_BLOCK, EXEC_ASSIGN,
2535 EXEC_LABEL_ASSIGN, EXEC_POINTER_ASSIGN, EXEC_CRITICAL, EXEC_ERROR_STOP,
2536 EXEC_GOTO, EXEC_CALL, EXEC_COMPCALL, EXEC_ASSIGN_CALL, EXEC_RETURN,
2537 EXEC_ENTRY, EXEC_PAUSE, EXEC_STOP, EXEC_CONTINUE, EXEC_INIT_ASSIGN,
2538 EXEC_IF, EXEC_ARITHMETIC_IF, EXEC_DO, EXEC_DO_CONCURRENT, EXEC_DO_WHILE,
2539 EXEC_SELECT, EXEC_BLOCK, EXEC_FORALL, EXEC_WHERE, EXEC_CYCLE, EXEC_EXIT,
2540 EXEC_CALL_PPC, EXEC_ALLOCATE, EXEC_DEALLOCATE, EXEC_END_PROCEDURE,
2541 EXEC_SELECT_TYPE, EXEC_SYNC_ALL, EXEC_SYNC_MEMORY, EXEC_SYNC_IMAGES,
2542 EXEC_OPEN, EXEC_CLOSE, EXEC_WAIT,
2543 EXEC_READ, EXEC_WRITE, EXEC_IOLENGTH, EXEC_TRANSFER, EXEC_DT_END,
2544 EXEC_BACKSPACE, EXEC_ENDFILE, EXEC_INQUIRE, EXEC_REWIND, EXEC_FLUSH,
2545 EXEC_FORM_TEAM, EXEC_CHANGE_TEAM, EXEC_END_TEAM, EXEC_SYNC_TEAM,
2546 EXEC_LOCK, EXEC_UNLOCK, EXEC_EVENT_POST, EXEC_EVENT_WAIT, EXEC_FAIL_IMAGE,
2547 EXEC_OACC_KERNELS_LOOP, EXEC_OACC_PARALLEL_LOOP, EXEC_OACC_ROUTINE,
2548 EXEC_OACC_PARALLEL, EXEC_OACC_KERNELS, EXEC_OACC_DATA, EXEC_OACC_HOST_DATA,
2549 EXEC_OACC_LOOP, EXEC_OACC_UPDATE, EXEC_OACC_WAIT, EXEC_OACC_CACHE,
2550 EXEC_OACC_ENTER_DATA, EXEC_OACC_EXIT_DATA, EXEC_OACC_ATOMIC,
2551 EXEC_OACC_DECLARE,
2552 EXEC_OMP_CRITICAL, EXEC_OMP_DO, EXEC_OMP_FLUSH, EXEC_OMP_MASTER,
2553 EXEC_OMP_ORDERED, EXEC_OMP_PARALLEL, EXEC_OMP_PARALLEL_DO,
2554 EXEC_OMP_PARALLEL_SECTIONS, EXEC_OMP_PARALLEL_WORKSHARE,
2555 EXEC_OMP_SECTIONS, EXEC_OMP_SINGLE, EXEC_OMP_WORKSHARE,
2556 EXEC_OMP_ATOMIC, EXEC_OMP_BARRIER, EXEC_OMP_END_NOWAIT,
2557 EXEC_OMP_END_SINGLE, EXEC_OMP_TASK, EXEC_OMP_TASKWAIT,
2558 EXEC_OMP_TASKYIELD, EXEC_OMP_CANCEL, EXEC_OMP_CANCELLATION_POINT,
2559 EXEC_OMP_TASKGROUP, EXEC_OMP_SIMD, EXEC_OMP_DO_SIMD,
2560 EXEC_OMP_PARALLEL_DO_SIMD, EXEC_OMP_TARGET, EXEC_OMP_TARGET_DATA,
2561 EXEC_OMP_TEAMS, EXEC_OMP_DISTRIBUTE, EXEC_OMP_DISTRIBUTE_SIMD,
2562 EXEC_OMP_DISTRIBUTE_PARALLEL_DO, EXEC_OMP_DISTRIBUTE_PARALLEL_DO_SIMD,
2563 EXEC_OMP_TARGET_TEAMS, EXEC_OMP_TEAMS_DISTRIBUTE,
2564 EXEC_OMP_TEAMS_DISTRIBUTE_SIMD, EXEC_OMP_TARGET_TEAMS_DISTRIBUTE,
2565 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_SIMD,
2566 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO,
2567 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO,
2568 EXEC_OMP_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
2569 EXEC_OMP_TARGET_TEAMS_DISTRIBUTE_PARALLEL_DO_SIMD,
2570 EXEC_OMP_TARGET_UPDATE, EXEC_OMP_END_CRITICAL,
2571 EXEC_OMP_TARGET_ENTER_DATA, EXEC_OMP_TARGET_EXIT_DATA,
2572 EXEC_OMP_TARGET_PARALLEL, EXEC_OMP_TARGET_PARALLEL_DO,
2573 EXEC_OMP_TARGET_PARALLEL_DO_SIMD, EXEC_OMP_TARGET_SIMD,
2574 EXEC_OMP_TASKLOOP, EXEC_OMP_TASKLOOP_SIMD
2575 };
2576
2577 enum gfc_omp_atomic_op
2578 {
2579 GFC_OMP_ATOMIC_UPDATE = 0,
2580 GFC_OMP_ATOMIC_READ = 1,
2581 GFC_OMP_ATOMIC_WRITE = 2,
2582 GFC_OMP_ATOMIC_CAPTURE = 3,
2583 GFC_OMP_ATOMIC_MASK = 3,
2584 GFC_OMP_ATOMIC_SEQ_CST = 4,
2585 GFC_OMP_ATOMIC_SWAP = 8
2586 };
2587
2588 typedef struct gfc_code
2589 {
2590 gfc_exec_op op;
2591
2592 struct gfc_code *block, *next;
2593 locus loc;
2594
2595 gfc_st_label *here, *label1, *label2, *label3;
2596 gfc_symtree *symtree;
2597 gfc_expr *expr1, *expr2, *expr3, *expr4;
2598 /* A name isn't sufficient to identify a subroutine, we need the actual
2599 symbol for the interface definition.
2600 const char *sub_name; */
2601 gfc_symbol *resolved_sym;
2602 gfc_intrinsic_sym *resolved_isym;
2603
2604 union
2605 {
2606 gfc_actual_arglist *actual;
2607 gfc_iterator *iterator;
2608
2609 struct
2610 {
2611 gfc_typespec ts;
2612 gfc_alloc *list;
2613 /* Take the array specification from expr3 to allocate arrays
2614 without an explicit array specification. */
2615 unsigned arr_spec_from_expr3:1;
2616 }
2617 alloc;
2618
2619 struct
2620 {
2621 gfc_namespace *ns;
2622 gfc_association_list *assoc;
2623 gfc_case *case_list;
2624 }
2625 block;
2626
2627 gfc_open *open;
2628 gfc_close *close;
2629 gfc_filepos *filepos;
2630 gfc_inquire *inquire;
2631 gfc_wait *wait;
2632 gfc_dt *dt;
2633 gfc_forall_iterator *forall_iterator;
2634 struct gfc_code *which_construct;
2635 int stop_code;
2636 gfc_entry_list *entry;
2637 gfc_oacc_declare *oacc_declare;
2638 gfc_omp_clauses *omp_clauses;
2639 const char *omp_name;
2640 gfc_omp_namelist *omp_namelist;
2641 bool omp_bool;
2642 gfc_omp_atomic_op omp_atomic;
2643 }
2644 ext; /* Points to additional structures required by statement */
2645
2646 /* Cycle and break labels in constructs. */
2647 tree cycle_label;
2648 tree exit_label;
2649 }
2650 gfc_code;
2651
2652
2653 /* Storage for DATA statements. */
2654 typedef struct gfc_data_variable
2655 {
2656 gfc_expr *expr;
2657 gfc_iterator iter;
2658 struct gfc_data_variable *list, *next;
2659 }
2660 gfc_data_variable;
2661
2662
2663 typedef struct gfc_data_value
2664 {
2665 mpz_t repeat;
2666 gfc_expr *expr;
2667 struct gfc_data_value *next;
2668 }
2669 gfc_data_value;
2670
2671
2672 typedef struct gfc_data
2673 {
2674 gfc_data_variable *var;
2675 gfc_data_value *value;
2676 locus where;
2677
2678 struct gfc_data *next;
2679 }
2680 gfc_data;
2681
2682
2683 /* Structure for holding compile options */
2684 typedef struct
2685 {
2686 char *module_dir;
2687 gfc_source_form source_form;
2688 int max_continue_fixed;
2689 int max_continue_free;
2690 int max_identifier_length;
2691
2692 int max_errors;
2693
2694 int flag_preprocessed;
2695 int flag_d_lines;
2696 int flag_init_integer;
2697 long flag_init_integer_value;
2698 int flag_init_logical;
2699 int flag_init_character;
2700 char flag_init_character_value;
2701
2702 int fpe;
2703 int fpe_summary;
2704 int rtcheck;
2705
2706 int warn_std;
2707 int allow_std;
2708 }
2709 gfc_option_t;
2710
2711 extern gfc_option_t gfc_option;
2712
2713 /* Constructor nodes for array and structure constructors. */
2714 typedef struct gfc_constructor
2715 {
2716 gfc_constructor_base base;
2717 mpz_t offset; /* Offset within a constructor, used as
2718 key within base. */
2719
2720 gfc_expr *expr;
2721 gfc_iterator *iterator;
2722 locus where;
2723
2724 union
2725 {
2726 gfc_component *component; /* Record the component being initialized. */
2727 }
2728 n;
2729 mpz_t repeat; /* Record the repeat number of initial values in data
2730 statement like "data a/5*10/". */
2731 }
2732 gfc_constructor;
2733
2734
2735 typedef struct iterator_stack
2736 {
2737 gfc_symtree *variable;
2738 mpz_t value;
2739 struct iterator_stack *prev;
2740 }
2741 iterator_stack;
2742 extern iterator_stack *iter_stack;
2743
2744
2745 /* Used for (possibly nested) SELECT TYPE statements. */
2746 typedef struct gfc_select_type_stack
2747 {
2748 gfc_symbol *selector; /* Current selector variable. */
2749 gfc_symtree *tmp; /* Current temporary variable. */
2750 struct gfc_select_type_stack *prev; /* Previous element on stack. */
2751 }
2752 gfc_select_type_stack;
2753 extern gfc_select_type_stack *select_type_stack;
2754 #define gfc_get_select_type_stack() XCNEW (gfc_select_type_stack)
2755
2756
2757 /* Node in the linked list used for storing finalizer procedures. */
2758
2759 typedef struct gfc_finalizer
2760 {
2761 struct gfc_finalizer* next;
2762 locus where; /* Where the FINAL declaration occurred. */
2763
2764 /* Up to resolution, we want the gfc_symbol, there we lookup the corresponding
2765 symtree and later need only that. This way, we can access and call the
2766 finalizers from every context as they should be "always accessible". I
2767 don't make this a union because we need the information whether proc_sym is
2768 still referenced or not for dereferencing it on deleting a gfc_finalizer
2769 structure. */
2770 gfc_symbol* proc_sym;
2771 gfc_symtree* proc_tree;
2772 }
2773 gfc_finalizer;
2774 #define gfc_get_finalizer() XCNEW (gfc_finalizer)
2775
2776
2777 /************************ Function prototypes *************************/
2778
2779 /* decl.c */
2780 bool gfc_in_match_data (void);
2781 match gfc_match_char_spec (gfc_typespec *);
2782 extern int directive_unroll;
2783
2784 /* SIMD clause enum. */
2785 enum gfc_simd_clause
2786 {
2787 SIMD_NONE = (1 << 0),
2788 SIMD_INBRANCH = (1 << 1),
2789 SIMD_NOTINBRANCH = (1 << 2)
2790 };
2791
2792 /* Tuple for parsing of vectorized built-ins. */
2793 struct gfc_vect_builtin_tuple
2794 {
gfc_vect_builtin_tuplegfc_vect_builtin_tuple2795 gfc_vect_builtin_tuple (const char *n, gfc_simd_clause t)
2796 : name (n), simd_type (t) {}
2797
2798 const char *name;
2799 gfc_simd_clause simd_type;
2800 };
2801
2802 /* Map of middle-end built-ins that should be vectorized. */
2803 extern hash_map<nofree_string_hash, int> *gfc_vectorized_builtins;
2804
2805 /* Handling Parameterized Derived Types */
2806 bool gfc_insert_kind_parameter_exprs (gfc_expr *);
2807 bool gfc_insert_parameter_exprs (gfc_expr *, gfc_actual_arglist *);
2808 match gfc_get_pdt_instance (gfc_actual_arglist *, gfc_symbol **,
2809 gfc_actual_arglist **);
2810
2811 /* scanner.c */
2812 void gfc_scanner_done_1 (void);
2813 void gfc_scanner_init_1 (void);
2814
2815 void gfc_add_include_path (const char *, bool, bool, bool);
2816 void gfc_add_intrinsic_modules_path (const char *);
2817 void gfc_release_include_path (void);
2818 FILE *gfc_open_included_file (const char *, bool, bool);
2819
2820 int gfc_at_end (void);
2821 int gfc_at_eof (void);
2822 int gfc_at_bol (void);
2823 int gfc_at_eol (void);
2824 void gfc_advance_line (void);
2825 int gfc_check_include (void);
2826 int gfc_define_undef_line (void);
2827
2828 int gfc_wide_is_printable (gfc_char_t);
2829 int gfc_wide_is_digit (gfc_char_t);
2830 int gfc_wide_fits_in_byte (gfc_char_t);
2831 gfc_char_t gfc_wide_tolower (gfc_char_t);
2832 gfc_char_t gfc_wide_toupper (gfc_char_t);
2833 size_t gfc_wide_strlen (const gfc_char_t *);
2834 int gfc_wide_strncasecmp (const gfc_char_t *, const char *, size_t);
2835 gfc_char_t *gfc_wide_memset (gfc_char_t *, gfc_char_t, size_t);
2836 char *gfc_widechar_to_char (const gfc_char_t *, int);
2837 gfc_char_t *gfc_char_to_widechar (const char *);
2838
2839 #define gfc_get_wide_string(n) XCNEWVEC (gfc_char_t, n)
2840
2841 void gfc_skip_comments (void);
2842 gfc_char_t gfc_next_char_literal (gfc_instring);
2843 gfc_char_t gfc_next_char (void);
2844 char gfc_next_ascii_char (void);
2845 gfc_char_t gfc_peek_char (void);
2846 char gfc_peek_ascii_char (void);
2847 void gfc_error_recovery (void);
2848 void gfc_gobble_whitespace (void);
2849 bool gfc_new_file (void);
2850 const char * gfc_read_orig_filename (const char *, const char **);
2851
2852 extern gfc_source_form gfc_current_form;
2853 extern const char *gfc_source_file;
2854 extern locus gfc_current_locus;
2855
2856 void gfc_start_source_files (void);
2857 void gfc_end_source_files (void);
2858
2859 /* misc.c */
2860 void gfc_clear_ts (gfc_typespec *);
2861 FILE *gfc_open_file (const char *);
2862 const char *gfc_basic_typename (bt);
2863 const char *gfc_typename (gfc_typespec *);
2864 const char *gfc_op2string (gfc_intrinsic_op);
2865 const char *gfc_code2string (const mstring *, int);
2866 int gfc_string2code (const mstring *, const char *);
2867 const char *gfc_intent_string (sym_intent);
2868
2869 void gfc_init_1 (void);
2870 void gfc_init_2 (void);
2871 void gfc_done_1 (void);
2872 void gfc_done_2 (void);
2873
2874 int get_c_kind (const char *, CInteropKind_t *);
2875
2876 const char *gfc_closest_fuzzy_match (const char *, char **);
2877 static inline void
vec_push(char ** & optr,size_t & osz,const char * elt)2878 vec_push (char **&optr, size_t &osz, const char *elt)
2879 {
2880 /* {auto,}vec.safe_push () replacement. Don't ask.. */
2881 // if (strlen (elt) < 4) return; premature optimization: eliminated by cutoff
2882 optr = XRESIZEVEC (char *, optr, osz + 2);
2883 optr[osz] = CONST_CAST (char *, elt);
2884 optr[++osz] = NULL;
2885 }
2886
2887 HOST_WIDE_INT gfc_mpz_get_hwi (mpz_t);
2888 void gfc_mpz_set_hwi (mpz_t, const HOST_WIDE_INT);
2889
2890 /* options.c */
2891 unsigned int gfc_option_lang_mask (void);
2892 void gfc_init_options_struct (struct gcc_options *);
2893 void gfc_init_options (unsigned int,
2894 struct cl_decoded_option *);
2895 bool gfc_handle_option (size_t, const char *, HOST_WIDE_INT, int, location_t,
2896 const struct cl_option_handlers *);
2897 bool gfc_post_options (const char **);
2898 char *gfc_get_option_string (void);
2899
2900 /* f95-lang.c */
2901 void gfc_maybe_initialize_eh (void);
2902
2903 /* iresolve.c */
2904 const char * gfc_get_string (const char *, ...) ATTRIBUTE_PRINTF_1;
2905 bool gfc_find_sym_in_expr (gfc_symbol *, gfc_expr *);
2906
2907 /* error.c */
2908 void gfc_error_init_1 (void);
2909 void gfc_diagnostics_init (void);
2910 void gfc_diagnostics_finish (void);
2911 void gfc_buffer_error (bool);
2912
2913 const char *gfc_print_wide_char (gfc_char_t);
2914
2915 bool gfc_warning (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2916 bool gfc_warning_now (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2917 bool gfc_warning_internal (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2918 bool gfc_warning_now_at (location_t loc, int opt, const char *gmsgid, ...)
2919 ATTRIBUTE_GCC_GFC(3,4);
2920
2921 void gfc_clear_warning (void);
2922 void gfc_warning_check (void);
2923
2924 void gfc_error_opt (int opt, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2925 void gfc_error (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2926 void gfc_error_now (const char *, ...) ATTRIBUTE_GCC_GFC(1,2);
2927 void gfc_fatal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2928 void gfc_internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_GCC_GFC(1,2);
2929 void gfc_clear_error (void);
2930 bool gfc_error_check (void);
2931 bool gfc_error_flag_test (void);
2932
2933 notification gfc_notification_std (int);
2934 bool gfc_notify_std (int, const char *, ...) ATTRIBUTE_GCC_GFC(2,3);
2935
2936 /* A general purpose syntax error. */
2937 #define gfc_syntax_error(ST) \
2938 gfc_error ("Syntax error in %s statement at %C", gfc_ascii_statement (ST));
2939
2940 #include "pretty-print.h" /* For output_buffer. */
2941 struct gfc_error_buffer
2942 {
2943 bool flag;
2944 output_buffer buffer;
gfc_error_buffergfc_error_buffer2945 gfc_error_buffer(void) : flag(false), buffer() {}
2946 };
2947
2948 void gfc_push_error (gfc_error_buffer *);
2949 void gfc_pop_error (gfc_error_buffer *);
2950 void gfc_free_error (gfc_error_buffer *);
2951
2952 void gfc_get_errors (int *, int *);
2953 void gfc_errors_to_warnings (bool);
2954
2955 /* arith.c */
2956 void gfc_arith_init_1 (void);
2957 void gfc_arith_done_1 (void);
2958 arith gfc_check_integer_range (mpz_t p, int kind);
2959 bool gfc_check_character_range (gfc_char_t, int);
2960
2961 /* trans-types.c */
2962 bool gfc_check_any_c_kind (gfc_typespec *);
2963 int gfc_validate_kind (bt, int, bool);
2964 int gfc_get_int_kind_from_width_isofortranenv (int size);
2965 int gfc_get_real_kind_from_width_isofortranenv (int size);
2966 tree gfc_get_union_type (gfc_symbol *);
2967 tree gfc_get_derived_type (gfc_symbol * derived, int codimen = 0);
2968 extern int gfc_index_integer_kind;
2969 extern int gfc_default_integer_kind;
2970 extern int gfc_max_integer_kind;
2971 extern int gfc_default_real_kind;
2972 extern int gfc_default_double_kind;
2973 extern int gfc_default_character_kind;
2974 extern int gfc_default_logical_kind;
2975 extern int gfc_default_complex_kind;
2976 extern int gfc_c_int_kind;
2977 extern int gfc_atomic_int_kind;
2978 extern int gfc_atomic_logical_kind;
2979 extern int gfc_intio_kind;
2980 extern int gfc_charlen_int_kind;
2981 extern int gfc_size_kind;
2982 extern int gfc_numeric_storage_size;
2983 extern int gfc_character_storage_size;
2984
2985 #define gfc_logical_4_kind 4
2986 #define gfc_integer_4_kind 4
2987 #define gfc_real_4_kind 4
2988
2989 /* symbol.c */
2990 void gfc_clear_new_implicit (void);
2991 bool gfc_add_new_implicit_range (int, int);
2992 bool gfc_merge_new_implicit (gfc_typespec *);
2993 void gfc_set_implicit_none (bool, bool, locus *);
2994 void gfc_check_function_type (gfc_namespace *);
2995 bool gfc_is_intrinsic_typename (const char *);
2996
2997 gfc_typespec *gfc_get_default_type (const char *, gfc_namespace *);
2998 bool gfc_set_default_type (gfc_symbol *, int, gfc_namespace *);
2999
3000 void gfc_set_sym_referenced (gfc_symbol *);
3001
3002 bool gfc_add_attribute (symbol_attribute *, locus *);
3003 bool gfc_add_ext_attribute (symbol_attribute *, ext_attr_id_t, locus *);
3004 bool gfc_add_allocatable (symbol_attribute *, locus *);
3005 bool gfc_add_codimension (symbol_attribute *, const char *, locus *);
3006 bool gfc_add_contiguous (symbol_attribute *, const char *, locus *);
3007 bool gfc_add_dimension (symbol_attribute *, const char *, locus *);
3008 bool gfc_add_external (symbol_attribute *, locus *);
3009 bool gfc_add_intrinsic (symbol_attribute *, locus *);
3010 bool gfc_add_optional (symbol_attribute *, locus *);
3011 bool gfc_add_kind (symbol_attribute *, locus *);
3012 bool gfc_add_len (symbol_attribute *, locus *);
3013 bool gfc_add_pointer (symbol_attribute *, locus *);
3014 bool gfc_add_cray_pointer (symbol_attribute *, locus *);
3015 bool gfc_add_cray_pointee (symbol_attribute *, locus *);
3016 match gfc_mod_pointee_as (gfc_array_spec *);
3017 bool gfc_add_protected (symbol_attribute *, const char *, locus *);
3018 bool gfc_add_result (symbol_attribute *, const char *, locus *);
3019 bool gfc_add_automatic (symbol_attribute *, const char *, locus *);
3020 bool gfc_add_save (symbol_attribute *, save_state, const char *, locus *);
3021 bool gfc_add_threadprivate (symbol_attribute *, const char *, locus *);
3022 bool gfc_add_omp_declare_target (symbol_attribute *, const char *, locus *);
3023 bool gfc_add_omp_declare_target_link (symbol_attribute *, const char *,
3024 locus *);
3025 bool gfc_add_saved_common (symbol_attribute *, locus *);
3026 bool gfc_add_target (symbol_attribute *, locus *);
3027 bool gfc_add_dummy (symbol_attribute *, const char *, locus *);
3028 bool gfc_add_generic (symbol_attribute *, const char *, locus *);
3029 bool gfc_add_common (symbol_attribute *, locus *);
3030 bool gfc_add_in_common (symbol_attribute *, const char *, locus *);
3031 bool gfc_add_in_equivalence (symbol_attribute *, const char *, locus *);
3032 bool gfc_add_data (symbol_attribute *, const char *, locus *);
3033 bool gfc_add_in_namelist (symbol_attribute *, const char *, locus *);
3034 bool gfc_add_sequence (symbol_attribute *, const char *, locus *);
3035 bool gfc_add_elemental (symbol_attribute *, locus *);
3036 bool gfc_add_pure (symbol_attribute *, locus *);
3037 bool gfc_add_recursive (symbol_attribute *, locus *);
3038 bool gfc_add_function (symbol_attribute *, const char *, locus *);
3039 bool gfc_add_subroutine (symbol_attribute *, const char *, locus *);
3040 bool gfc_add_volatile (symbol_attribute *, const char *, locus *);
3041 bool gfc_add_asynchronous (symbol_attribute *, const char *, locus *);
3042 bool gfc_add_proc (symbol_attribute *attr, const char *name, locus *where);
3043 bool gfc_add_abstract (symbol_attribute* attr, locus* where);
3044
3045 bool gfc_add_access (symbol_attribute *, gfc_access, const char *, locus *);
3046 bool gfc_add_is_bind_c (symbol_attribute *, const char *, locus *, int);
3047 bool gfc_add_extension (symbol_attribute *, locus *);
3048 bool gfc_add_value (symbol_attribute *, const char *, locus *);
3049 bool gfc_add_flavor (symbol_attribute *, sym_flavor, const char *, locus *);
3050 bool gfc_add_entry (symbol_attribute *, const char *, locus *);
3051 bool gfc_add_procedure (symbol_attribute *, procedure_type,
3052 const char *, locus *);
3053 bool gfc_add_intent (symbol_attribute *, sym_intent, locus *);
3054 bool gfc_add_explicit_interface (gfc_symbol *, ifsrc,
3055 gfc_formal_arglist *, locus *);
3056 bool gfc_add_type (gfc_symbol *, gfc_typespec *, locus *);
3057
3058 void gfc_clear_attr (symbol_attribute *);
3059 bool gfc_missing_attr (symbol_attribute *, locus *);
3060 bool gfc_copy_attr (symbol_attribute *, symbol_attribute *, locus *);
3061 int gfc_copy_dummy_sym (gfc_symbol **, gfc_symbol *, int);
3062 bool gfc_add_component (gfc_symbol *, const char *, gfc_component **);
3063 gfc_symbol *gfc_use_derived (gfc_symbol *);
3064 gfc_symtree *gfc_use_derived_tree (gfc_symtree *);
3065 gfc_component *gfc_find_component (gfc_symbol *, const char *, bool, bool,
3066 gfc_ref **);
3067
3068 gfc_st_label *gfc_get_st_label (int);
3069 void gfc_free_st_label (gfc_st_label *);
3070 void gfc_define_st_label (gfc_st_label *, gfc_sl_type, locus *);
3071 bool gfc_reference_st_label (gfc_st_label *, gfc_sl_type);
3072
3073 gfc_namespace *gfc_get_namespace (gfc_namespace *, int);
3074 gfc_symtree *gfc_new_symtree (gfc_symtree **, const char *);
3075 gfc_symtree *gfc_find_symtree (gfc_symtree *, const char *);
3076 void gfc_delete_symtree (gfc_symtree **, const char *);
3077 gfc_symtree *gfc_get_unique_symtree (gfc_namespace *);
3078 gfc_user_op *gfc_get_uop (const char *);
3079 gfc_user_op *gfc_find_uop (const char *, gfc_namespace *);
3080 void gfc_free_symbol (gfc_symbol *);
3081 void gfc_release_symbol (gfc_symbol *);
3082 gfc_symbol *gfc_new_symbol (const char *, gfc_namespace *);
3083 gfc_symtree* gfc_find_symtree_in_proc (const char *, gfc_namespace *);
3084 int gfc_find_symbol (const char *, gfc_namespace *, int, gfc_symbol **);
3085 int gfc_find_sym_tree (const char *, gfc_namespace *, int, gfc_symtree **);
3086 int gfc_get_symbol (const char *, gfc_namespace *, gfc_symbol **);
3087 bool gfc_verify_c_interop (gfc_typespec *);
3088 bool gfc_verify_c_interop_param (gfc_symbol *);
3089 bool verify_bind_c_sym (gfc_symbol *, gfc_typespec *, int, gfc_common_head *);
3090 bool verify_bind_c_derived_type (gfc_symbol *);
3091 bool verify_com_block_vars_c_interop (gfc_common_head *);
3092 gfc_symtree *generate_isocbinding_symbol (const char *, iso_c_binding_symbol,
3093 const char *, gfc_symtree *, bool);
3094 void gfc_save_symbol_data (gfc_symbol *);
3095 int gfc_get_sym_tree (const char *, gfc_namespace *, gfc_symtree **, bool);
3096 int gfc_get_ha_symbol (const char *, gfc_symbol **);
3097 int gfc_get_ha_sym_tree (const char *, gfc_symtree **);
3098
3099 void gfc_drop_last_undo_checkpoint (void);
3100 void gfc_restore_last_undo_checkpoint (void);
3101 void gfc_undo_symbols (void);
3102 void gfc_commit_symbols (void);
3103 void gfc_commit_symbol (gfc_symbol *);
3104 gfc_charlen *gfc_new_charlen (gfc_namespace *, gfc_charlen *);
3105 void gfc_free_charlen (gfc_charlen *, gfc_charlen *);
3106 void gfc_free_namespace (gfc_namespace *);
3107
3108 void gfc_symbol_init_2 (void);
3109 void gfc_symbol_done_2 (void);
3110
3111 void gfc_traverse_symtree (gfc_symtree *, void (*)(gfc_symtree *));
3112 void gfc_traverse_ns (gfc_namespace *, void (*)(gfc_symbol *));
3113 void gfc_traverse_user_op (gfc_namespace *, void (*)(gfc_user_op *));
3114 void gfc_save_all (gfc_namespace *);
3115
3116 void gfc_enforce_clean_symbol_state (void);
3117 void gfc_free_dt_list (void);
3118
3119
3120 gfc_gsymbol *gfc_get_gsymbol (const char *, bool bind_c);
3121 gfc_gsymbol *gfc_find_gsymbol (gfc_gsymbol *, const char *);
3122 gfc_gsymbol *gfc_find_case_gsymbol (gfc_gsymbol *, const char *);
3123
3124 gfc_typebound_proc* gfc_get_typebound_proc (gfc_typebound_proc*);
3125 gfc_symbol* gfc_get_derived_super_type (gfc_symbol*);
3126 gfc_symbol* gfc_get_ultimate_derived_super_type (gfc_symbol*);
3127 bool gfc_type_is_extension_of (gfc_symbol *, gfc_symbol *);
3128 bool gfc_type_compatible (gfc_typespec *, gfc_typespec *);
3129
3130 void gfc_copy_formal_args_intr (gfc_symbol *, gfc_intrinsic_sym *,
3131 gfc_actual_arglist *);
3132
3133 void gfc_free_finalizer (gfc_finalizer *el); /* Needed in resolve.c, too */
3134
3135 bool gfc_check_symbol_typed (gfc_symbol*, gfc_namespace*, bool, locus);
3136 gfc_namespace* gfc_find_proc_namespace (gfc_namespace*);
3137
3138 bool gfc_is_associate_pointer (gfc_symbol*);
3139 gfc_symbol * gfc_find_dt_in_generic (gfc_symbol *);
3140 gfc_formal_arglist *gfc_sym_get_dummy_args (gfc_symbol *);
3141
3142 /* intrinsic.c -- true if working in an init-expr, false otherwise. */
3143 extern bool gfc_init_expr_flag;
3144
3145 /* Given a symbol that we have decided is intrinsic, mark it as such
3146 by placing it into a special module that is otherwise impossible to
3147 read or write. */
3148
3149 #define gfc_intrinsic_symbol(SYM) SYM->module = gfc_get_string ("(intrinsic)")
3150
3151 void gfc_intrinsic_init_1 (void);
3152 void gfc_intrinsic_done_1 (void);
3153
3154 char gfc_type_letter (bt, bool logical_equals_int = false);
3155 gfc_symbol * gfc_get_intrinsic_sub_symbol (const char *);
3156 bool gfc_convert_type (gfc_expr *, gfc_typespec *, int);
3157 bool gfc_convert_type_warn (gfc_expr *, gfc_typespec *, int, int);
3158 bool gfc_convert_chartype (gfc_expr *, gfc_typespec *);
3159 int gfc_generic_intrinsic (const char *);
3160 int gfc_specific_intrinsic (const char *);
3161 bool gfc_is_intrinsic (gfc_symbol*, int, locus);
3162 int gfc_intrinsic_actual_ok (const char *, const bool);
3163 gfc_intrinsic_sym *gfc_find_function (const char *);
3164 gfc_intrinsic_sym *gfc_find_subroutine (const char *);
3165 gfc_intrinsic_sym *gfc_intrinsic_function_by_id (gfc_isym_id);
3166 gfc_intrinsic_sym *gfc_intrinsic_subroutine_by_id (gfc_isym_id);
3167 gfc_isym_id gfc_isym_id_by_intmod (intmod_id, int);
3168 gfc_isym_id gfc_isym_id_by_intmod_sym (gfc_symbol *);
3169
3170
3171 match gfc_intrinsic_func_interface (gfc_expr *, int);
3172 match gfc_intrinsic_sub_interface (gfc_code *, int);
3173
3174 void gfc_warn_intrinsic_shadow (const gfc_symbol*, bool, bool);
3175 bool gfc_check_intrinsic_standard (const gfc_intrinsic_sym*, const char**,
3176 bool, locus);
3177
3178 /* match.c -- FIXME */
3179 void gfc_free_iterator (gfc_iterator *, int);
3180 void gfc_free_forall_iterator (gfc_forall_iterator *);
3181 void gfc_free_alloc_list (gfc_alloc *);
3182 void gfc_free_namelist (gfc_namelist *);
3183 void gfc_free_omp_namelist (gfc_omp_namelist *);
3184 void gfc_free_equiv (gfc_equiv *);
3185 void gfc_free_equiv_until (gfc_equiv *, gfc_equiv *);
3186 void gfc_free_data (gfc_data *);
3187 void gfc_reject_data (gfc_namespace *);
3188 void gfc_free_case_list (gfc_case *);
3189
3190 /* matchexp.c -- FIXME too? */
3191 gfc_expr *gfc_get_parentheses (gfc_expr *);
3192
3193 /* openmp.c */
3194 struct gfc_omp_saved_state { void *ptrs[2]; int ints[1]; };
3195 void gfc_free_omp_clauses (gfc_omp_clauses *);
3196 void gfc_free_oacc_declare_clauses (struct gfc_oacc_declare *);
3197 void gfc_free_omp_declare_simd (gfc_omp_declare_simd *);
3198 void gfc_free_omp_declare_simd_list (gfc_omp_declare_simd *);
3199 void gfc_free_omp_udr (gfc_omp_udr *);
3200 gfc_omp_udr *gfc_omp_udr_find (gfc_symtree *, gfc_typespec *);
3201 void gfc_resolve_omp_directive (gfc_code *, gfc_namespace *);
3202 void gfc_resolve_do_iterator (gfc_code *, gfc_symbol *, bool);
3203 void gfc_resolve_omp_local_vars (gfc_namespace *);
3204 void gfc_resolve_omp_parallel_blocks (gfc_code *, gfc_namespace *);
3205 void gfc_resolve_omp_do_blocks (gfc_code *, gfc_namespace *);
3206 void gfc_resolve_omp_declare_simd (gfc_namespace *);
3207 void gfc_resolve_omp_udrs (gfc_symtree *);
3208 void gfc_omp_save_and_clear_state (struct gfc_omp_saved_state *);
3209 void gfc_omp_restore_state (struct gfc_omp_saved_state *);
3210 void gfc_free_expr_list (gfc_expr_list *);
3211 void gfc_resolve_oacc_directive (gfc_code *, gfc_namespace *);
3212 void gfc_resolve_oacc_declare (gfc_namespace *);
3213 void gfc_resolve_oacc_parallel_loop_blocks (gfc_code *, gfc_namespace *);
3214 void gfc_resolve_oacc_blocks (gfc_code *, gfc_namespace *);
3215 void gfc_resolve_oacc_routines (gfc_namespace *);
3216
3217 /* expr.c */
3218 void gfc_free_actual_arglist (gfc_actual_arglist *);
3219 gfc_actual_arglist *gfc_copy_actual_arglist (gfc_actual_arglist *);
3220
3221 bool gfc_extract_int (gfc_expr *, int *, int = 0);
3222 bool gfc_extract_hwi (gfc_expr *, HOST_WIDE_INT *, int = 0);
3223
3224 bool is_CFI_desc (gfc_symbol *, gfc_expr *);
3225 bool is_subref_array (gfc_expr *);
3226 bool gfc_is_simply_contiguous (gfc_expr *, bool, bool);
3227 bool gfc_is_not_contiguous (gfc_expr *);
3228 bool gfc_check_init_expr (gfc_expr *);
3229
3230 gfc_expr *gfc_build_conversion (gfc_expr *);
3231 void gfc_free_ref_list (gfc_ref *);
3232 void gfc_type_convert_binary (gfc_expr *, int);
3233 bool gfc_is_constant_expr (gfc_expr *);
3234 bool gfc_simplify_expr (gfc_expr *, int);
3235 int gfc_has_vector_index (gfc_expr *);
3236
3237 gfc_expr *gfc_get_expr (void);
3238 gfc_expr *gfc_get_array_expr (bt type, int kind, locus *);
3239 gfc_expr *gfc_get_null_expr (locus *);
3240 gfc_expr *gfc_get_operator_expr (locus *, gfc_intrinsic_op,gfc_expr *, gfc_expr *);
3241 gfc_expr *gfc_get_structure_constructor_expr (bt, int, locus *);
3242 gfc_expr *gfc_get_constant_expr (bt, int, locus *);
3243 gfc_expr *gfc_get_character_expr (int, locus *, const char *, gfc_charlen_t len);
3244 gfc_expr *gfc_get_int_expr (int, locus *, HOST_WIDE_INT);
3245 gfc_expr *gfc_get_logical_expr (int, locus *, bool);
3246 gfc_expr *gfc_get_iokind_expr (locus *, io_kind);
3247
3248 void gfc_clear_shape (mpz_t *shape, int rank);
3249 void gfc_free_shape (mpz_t **shape, int rank);
3250 void gfc_free_expr (gfc_expr *);
3251 void gfc_replace_expr (gfc_expr *, gfc_expr *);
3252 mpz_t *gfc_copy_shape (mpz_t *, int);
3253 mpz_t *gfc_copy_shape_excluding (mpz_t *, int, gfc_expr *);
3254 gfc_expr *gfc_copy_expr (gfc_expr *);
3255 gfc_ref* gfc_copy_ref (gfc_ref*);
3256
3257 bool gfc_specification_expr (gfc_expr *);
3258
3259 int gfc_numeric_ts (gfc_typespec *);
3260 int gfc_kind_max (gfc_expr *, gfc_expr *);
3261
3262 bool gfc_check_conformance (gfc_expr *, gfc_expr *, const char *, ...) ATTRIBUTE_PRINTF_3;
3263 bool gfc_check_assign (gfc_expr *, gfc_expr *, int, bool c = true);
3264 bool gfc_check_pointer_assign (gfc_expr *lvalue, gfc_expr *rvalue,
3265 bool suppres_type_test = false,
3266 bool is_init_expr = false);
3267 bool gfc_check_assign_symbol (gfc_symbol *, gfc_component *, gfc_expr *);
3268
3269 gfc_expr *gfc_build_default_init_expr (gfc_typespec *, locus *);
3270 gfc_expr *gfc_build_init_expr (gfc_typespec *, locus *, bool);
3271 void gfc_apply_init (gfc_typespec *, symbol_attribute *, gfc_expr *);
3272 bool gfc_has_default_initializer (gfc_symbol *);
3273 gfc_expr *gfc_default_initializer (gfc_typespec *);
3274 gfc_expr *gfc_generate_initializer (gfc_typespec *, bool);
3275 gfc_expr *gfc_get_variable_expr (gfc_symtree *);
3276 void gfc_add_full_array_ref (gfc_expr *, gfc_array_spec *);
3277 gfc_expr * gfc_lval_expr_from_sym (gfc_symbol *);
3278
3279 gfc_array_spec *gfc_get_full_arrayspec_from_expr (gfc_expr *expr);
3280
3281 bool gfc_traverse_expr (gfc_expr *, gfc_symbol *,
3282 bool (*)(gfc_expr *, gfc_symbol *, int*),
3283 int);
3284 void gfc_expr_set_symbols_referenced (gfc_expr *);
3285 bool gfc_expr_check_typed (gfc_expr*, gfc_namespace*, bool);
3286 bool gfc_derived_parameter_expr (gfc_expr *);
3287 gfc_param_spec_type gfc_spec_list_type (gfc_actual_arglist *, gfc_symbol *);
3288 gfc_component * gfc_get_proc_ptr_comp (gfc_expr *);
3289 bool gfc_is_proc_ptr_comp (gfc_expr *);
3290 bool gfc_is_alloc_class_scalar_function (gfc_expr *);
3291 bool gfc_is_class_array_function (gfc_expr *);
3292
3293 bool gfc_ref_this_image (gfc_ref *ref);
3294 bool gfc_is_coindexed (gfc_expr *);
3295 bool gfc_is_coarray (gfc_expr *);
3296 int gfc_get_corank (gfc_expr *);
3297 bool gfc_has_ultimate_allocatable (gfc_expr *);
3298 bool gfc_has_ultimate_pointer (gfc_expr *);
3299 gfc_expr* gfc_find_team_co (gfc_expr *);
3300 gfc_expr* gfc_find_stat_co (gfc_expr *);
3301 gfc_expr* gfc_build_intrinsic_call (gfc_namespace *, gfc_isym_id, const char*,
3302 locus, unsigned, ...);
3303 bool gfc_check_vardef_context (gfc_expr*, bool, bool, bool, const char*);
3304
3305
3306 /* st.c */
3307 extern gfc_code new_st;
3308
3309 void gfc_clear_new_st (void);
3310 gfc_code *gfc_get_code (gfc_exec_op);
3311 gfc_code *gfc_append_code (gfc_code *, gfc_code *);
3312 void gfc_free_statement (gfc_code *);
3313 void gfc_free_statements (gfc_code *);
3314 void gfc_free_association_list (gfc_association_list *);
3315
3316 /* resolve.c */
3317 bool gfc_resolve_expr (gfc_expr *);
3318 void gfc_resolve (gfc_namespace *);
3319 void gfc_resolve_code (gfc_code *, gfc_namespace *);
3320 void gfc_resolve_blocks (gfc_code *, gfc_namespace *);
3321 int gfc_impure_variable (gfc_symbol *);
3322 int gfc_pure (gfc_symbol *);
3323 int gfc_implicit_pure (gfc_symbol *);
3324 void gfc_unset_implicit_pure (gfc_symbol *);
3325 int gfc_elemental (gfc_symbol *);
3326 bool gfc_resolve_iterator (gfc_iterator *, bool, bool);
3327 bool find_forall_index (gfc_expr *, gfc_symbol *, int);
3328 bool gfc_resolve_index (gfc_expr *, int);
3329 bool gfc_resolve_dim_arg (gfc_expr *);
3330 bool gfc_is_formal_arg (void);
3331 void gfc_resolve_substring_charlen (gfc_expr *);
3332 match gfc_iso_c_sub_interface(gfc_code *, gfc_symbol *);
3333 gfc_expr *gfc_expr_to_initialize (gfc_expr *);
3334 bool gfc_type_is_extensible (gfc_symbol *);
3335 bool gfc_resolve_intrinsic (gfc_symbol *, locus *);
3336 bool gfc_explicit_interface_required (gfc_symbol *, char *, int);
3337 extern int gfc_do_concurrent_flag;
3338 const char* gfc_lookup_function_fuzzy (const char *, gfc_symtree *);
3339 int gfc_pure_function (gfc_expr *e, const char **name);
3340 int gfc_implicit_pure_function (gfc_expr *e);
3341
3342
3343 /* array.c */
3344 gfc_iterator *gfc_copy_iterator (gfc_iterator *);
3345
3346 void gfc_free_array_spec (gfc_array_spec *);
3347 gfc_array_ref *gfc_copy_array_ref (gfc_array_ref *);
3348
3349 bool gfc_set_array_spec (gfc_symbol *, gfc_array_spec *, locus *);
3350 gfc_array_spec *gfc_copy_array_spec (gfc_array_spec *);
3351 bool gfc_resolve_array_spec (gfc_array_spec *, int);
3352
3353 int gfc_compare_array_spec (gfc_array_spec *, gfc_array_spec *);
3354
3355 void gfc_simplify_iterator_var (gfc_expr *);
3356 bool gfc_expand_constructor (gfc_expr *, bool);
3357 int gfc_constant_ac (gfc_expr *);
3358 int gfc_expanded_ac (gfc_expr *);
3359 bool gfc_resolve_character_array_constructor (gfc_expr *);
3360 bool gfc_resolve_array_constructor (gfc_expr *);
3361 bool gfc_check_constructor_type (gfc_expr *);
3362 bool gfc_check_iter_variable (gfc_expr *);
3363 bool gfc_check_constructor (gfc_expr *, bool (*)(gfc_expr *));
3364 bool gfc_array_size (gfc_expr *, mpz_t *);
3365 bool gfc_array_dimen_size (gfc_expr *, int, mpz_t *);
3366 bool gfc_array_ref_shape (gfc_array_ref *, mpz_t *);
3367 gfc_array_ref *gfc_find_array_ref (gfc_expr *, bool a = false);
3368 tree gfc_conv_array_initializer (tree type, gfc_expr *);
3369 bool spec_size (gfc_array_spec *, mpz_t *);
3370 bool spec_dimen_size (gfc_array_spec *, int, mpz_t *);
3371 bool gfc_is_compile_time_shape (gfc_array_spec *);
3372
3373 bool gfc_ref_dimen_size (gfc_array_ref *, int dimen, mpz_t *, mpz_t *);
3374
3375
3376 #define gfc_str_startswith(str, pref) \
3377 (strncmp ((str), (pref), strlen (pref)) == 0)
3378
3379 /* interface.c -- FIXME: some of these should be in symbol.c */
3380 void gfc_free_interface (gfc_interface *);
3381 bool gfc_compare_derived_types (gfc_symbol *, gfc_symbol *);
3382 bool gfc_compare_types (gfc_typespec *, gfc_typespec *);
3383 bool gfc_check_dummy_characteristics (gfc_symbol *, gfc_symbol *,
3384 bool, char *, int);
3385 bool gfc_check_result_characteristics (gfc_symbol *, gfc_symbol *,
3386 char *, int);
3387 bool gfc_compare_interfaces (gfc_symbol*, gfc_symbol*, const char *, int, int,
3388 char *, int, const char *, const char *);
3389 void gfc_check_interfaces (gfc_namespace *);
3390 bool gfc_procedure_use (gfc_symbol *, gfc_actual_arglist **, locus *);
3391 void gfc_ppc_use (gfc_component *, gfc_actual_arglist **, locus *);
3392 gfc_symbol *gfc_search_interface (gfc_interface *, int,
3393 gfc_actual_arglist **);
3394 match gfc_extend_expr (gfc_expr *);
3395 void gfc_free_formal_arglist (gfc_formal_arglist *);
3396 bool gfc_extend_assign (gfc_code *, gfc_namespace *);
3397 bool gfc_check_new_interface (gfc_interface *, gfc_symbol *, locus);
3398 bool gfc_add_interface (gfc_symbol *);
3399 gfc_interface *gfc_current_interface_head (void);
3400 void gfc_set_current_interface_head (gfc_interface *);
3401 gfc_symtree* gfc_find_sym_in_symtree (gfc_symbol*);
3402 bool gfc_arglist_matches_symbol (gfc_actual_arglist**, gfc_symbol*);
3403 bool gfc_check_operator_interface (gfc_symbol*, gfc_intrinsic_op, locus);
3404 bool gfc_has_vector_subscript (gfc_expr*);
3405 gfc_intrinsic_op gfc_equivalent_op (gfc_intrinsic_op);
3406 bool gfc_check_typebound_override (gfc_symtree*, gfc_symtree*);
3407 void gfc_check_dtio_interfaces (gfc_symbol*);
3408 gfc_symtree* gfc_find_typebound_dtio_proc (gfc_symbol *, bool, bool);
3409 gfc_symbol* gfc_find_specific_dtio_proc (gfc_symbol*, bool, bool);
3410
3411
3412 /* io.c */
3413 extern gfc_st_label format_asterisk;
3414
3415 void gfc_free_open (gfc_open *);
3416 bool gfc_resolve_open (gfc_open *);
3417 void gfc_free_close (gfc_close *);
3418 bool gfc_resolve_close (gfc_close *);
3419 void gfc_free_filepos (gfc_filepos *);
3420 bool gfc_resolve_filepos (gfc_filepos *, locus *);
3421 void gfc_free_inquire (gfc_inquire *);
3422 bool gfc_resolve_inquire (gfc_inquire *);
3423 void gfc_free_dt (gfc_dt *);
3424 bool gfc_resolve_dt (gfc_dt *, locus *);
3425 void gfc_free_wait (gfc_wait *);
3426 bool gfc_resolve_wait (gfc_wait *);
3427 extern bool async_io_dt;
3428
3429 /* module.c */
3430 void gfc_module_init_2 (void);
3431 void gfc_module_done_2 (void);
3432 void gfc_dump_module (const char *, int);
3433 bool gfc_check_symbol_access (gfc_symbol *);
3434 void gfc_free_use_stmts (gfc_use_list *);
3435 const char *gfc_dt_lower_string (const char *);
3436 const char *gfc_dt_upper_string (const char *);
3437
3438 /* primary.c */
3439 symbol_attribute gfc_variable_attr (gfc_expr *, gfc_typespec *);
3440 symbol_attribute gfc_expr_attr (gfc_expr *);
3441 symbol_attribute gfc_caf_attr (gfc_expr *, bool i = false, bool *r = NULL);
3442 match gfc_match_rvalue (gfc_expr **);
3443 match gfc_match_varspec (gfc_expr*, int, bool, bool);
3444 int gfc_check_digit (char, int);
3445 bool gfc_is_function_return_value (gfc_symbol *, gfc_namespace *);
3446 bool gfc_convert_to_structure_constructor (gfc_expr *, gfc_symbol *,
3447 gfc_expr **,
3448 gfc_actual_arglist **, bool);
3449
3450 /* trans.c */
3451 void gfc_generate_code (gfc_namespace *);
3452 void gfc_generate_module_code (gfc_namespace *);
3453
3454 /* trans-intrinsic.c */
3455 bool gfc_inline_intrinsic_function_p (gfc_expr *);
3456
3457 /* bbt.c */
3458 typedef int (*compare_fn) (void *, void *);
3459 void gfc_insert_bbt (void *, void *, compare_fn);
3460 void gfc_delete_bbt (void *, void *, compare_fn);
3461
3462 /* dump-parse-tree.c */
3463 void gfc_dump_parse_tree (gfc_namespace *, FILE *);
3464 void gfc_dump_c_prototypes (gfc_namespace *, FILE *);
3465
3466 /* parse.c */
3467 bool gfc_parse_file (void);
3468 void gfc_global_used (gfc_gsymbol *, locus *);
3469 gfc_namespace* gfc_build_block_ns (gfc_namespace *);
3470
3471 /* dependency.c */
3472 int gfc_dep_compare_functions (gfc_expr *, gfc_expr *, bool);
3473 int gfc_dep_compare_expr (gfc_expr *, gfc_expr *);
3474 bool gfc_dep_difference (gfc_expr *, gfc_expr *, mpz_t *);
3475
3476 /* check.c */
3477 bool gfc_check_same_strlen (const gfc_expr*, const gfc_expr*, const char*);
3478 bool gfc_calculate_transfer_sizes (gfc_expr*, gfc_expr*, gfc_expr*,
3479 size_t*, size_t*, size_t*);
3480
3481 /* class.c */
3482 void gfc_fix_class_refs (gfc_expr *e);
3483 void gfc_add_component_ref (gfc_expr *, const char *);
3484 void gfc_add_class_array_ref (gfc_expr *);
3485 #define gfc_add_data_component(e) gfc_add_component_ref(e,"_data")
3486 #define gfc_add_vptr_component(e) gfc_add_component_ref(e,"_vptr")
3487 #define gfc_add_len_component(e) gfc_add_component_ref(e,"_len")
3488 #define gfc_add_hash_component(e) gfc_add_component_ref(e,"_hash")
3489 #define gfc_add_size_component(e) gfc_add_component_ref(e,"_size")
3490 #define gfc_add_def_init_component(e) gfc_add_component_ref(e,"_def_init")
3491 #define gfc_add_final_component(e) gfc_add_component_ref(e,"_final")
3492 bool gfc_is_class_array_ref (gfc_expr *, bool *);
3493 bool gfc_is_class_scalar_expr (gfc_expr *);
3494 bool gfc_is_class_container_ref (gfc_expr *e);
3495 gfc_expr *gfc_class_initializer (gfc_typespec *, gfc_expr *);
3496 unsigned int gfc_hash_value (gfc_symbol *);
3497 gfc_expr *gfc_get_len_component (gfc_expr *e, int);
3498 bool gfc_build_class_symbol (gfc_typespec *, symbol_attribute *,
3499 gfc_array_spec **);
3500 gfc_symbol *gfc_find_derived_vtab (gfc_symbol *);
3501 gfc_symbol *gfc_find_vtab (gfc_typespec *);
3502 gfc_symtree* gfc_find_typebound_proc (gfc_symbol*, bool*,
3503 const char*, bool, locus*);
3504 gfc_symtree* gfc_find_typebound_user_op (gfc_symbol*, bool*,
3505 const char*, bool, locus*);
3506 gfc_typebound_proc* gfc_find_typebound_intrinsic_op (gfc_symbol*, bool*,
3507 gfc_intrinsic_op, bool,
3508 locus*);
3509 gfc_symtree* gfc_get_tbp_symtree (gfc_symtree**, const char*);
3510 bool gfc_is_finalizable (gfc_symbol *, gfc_expr **);
3511
3512 #define CLASS_DATA(sym) sym->ts.u.derived->components
3513 #define UNLIMITED_POLY(sym) \
3514 (sym != NULL && sym->ts.type == BT_CLASS \
3515 && CLASS_DATA (sym) \
3516 && CLASS_DATA (sym)->ts.u.derived \
3517 && CLASS_DATA (sym)->ts.u.derived->attr.unlimited_polymorphic)
3518 #define IS_CLASS_ARRAY(sym) \
3519 (sym->ts.type == BT_CLASS \
3520 && CLASS_DATA (sym) \
3521 && CLASS_DATA (sym)->attr.dimension \
3522 && !CLASS_DATA (sym)->attr.class_pointer)
3523
3524 /* frontend-passes.c */
3525
3526 void gfc_run_passes (gfc_namespace *);
3527
3528 typedef int (*walk_code_fn_t) (gfc_code **, int *, void *);
3529 typedef int (*walk_expr_fn_t) (gfc_expr **, int *, void *);
3530
3531 int gfc_dummy_code_callback (gfc_code **, int *, void *);
3532 int gfc_expr_walker (gfc_expr **, walk_expr_fn_t, void *);
3533 int gfc_code_walker (gfc_code **, walk_code_fn_t, walk_expr_fn_t, void *);
3534
3535 /* simplify.c */
3536
3537 void gfc_convert_mpz_to_signed (mpz_t, int);
3538 gfc_expr *gfc_simplify_ieee_functions (gfc_expr *);
3539 bool gfc_is_size_zero_array (gfc_expr *);
3540
3541 /* trans-array.c */
3542
3543 bool gfc_is_reallocatable_lhs (gfc_expr *);
3544
3545 /* trans-decl.c */
3546
3547 void finish_oacc_declare (gfc_namespace *, gfc_symbol *, bool);
3548 void gfc_adjust_builtins (void);
3549
3550 #endif /* GCC_GFORTRAN_H */
3551