]>
Commit | Line | Data |
---|---|---|
d15bac21 | 1 | /* Implementation of Fortran 2003 Polymorphism. |
83ffe9cd | 2 | Copyright (C) 2009-2023 Free Software Foundation, Inc. |
4fa02692 JW |
3 | Contributed by Paul Richard Thomas <pault@gcc.gnu.org> |
4 | and Janus Weil <janus@gcc.gnu.org> | |
d15bac21 JW |
5 | |
6 | This file is part of GCC. | |
7 | ||
8 | GCC is free software; you can redistribute it and/or modify it under | |
9 | the terms of the GNU General Public License as published by the Free | |
10 | Software Foundation; either version 3, or (at your option) any later | |
11 | version. | |
12 | ||
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GCC; see the file COPYING3. If not see | |
20 | <http://www.gnu.org/licenses/>. */ | |
21 | ||
22 | ||
e53b6e56 | 23 | /* class.cc -- This file contains the front end functions needed to service |
d15bac21 JW |
24 | the implementation of Fortran 2003 polymorphism and other |
25 | object-oriented features. */ | |
26 | ||
27 | ||
28 | /* Outline of the internal representation: | |
29 | ||
30 | Each CLASS variable is encapsulated by a class container, which is a | |
31 | structure with two fields: | |
b04533af | 32 | * _data: A pointer to the actual data of the variable. This field has the |
d15bac21 JW |
33 | declared type of the class variable and its attributes |
34 | (pointer/allocatable/dimension/...). | |
b04533af | 35 | * _vptr: A pointer to the vtable entry (see below) of the dynamic type. |
8e54f139 | 36 | |
5b384b3d | 37 | Only for unlimited polymorphic classes: |
f622221a | 38 | * _len: An integer(C_SIZE_T) to store the string length when the unlimited |
5b384b3d PT |
39 | polymorphic pointer is used to point to a char array. The '_len' |
40 | component will be zero when no character array is stored in | |
41 | '_data'. | |
42 | ||
d15bac21 JW |
43 | For each derived type we set up a "vtable" entry, i.e. a structure with the |
44 | following fields: | |
b04533af JW |
45 | * _hash: A hash value serving as a unique identifier for this type. |
46 | * _size: The size in bytes of the derived type. | |
47 | * _extends: A pointer to the vtable entry of the parent derived type. | |
48 | * _def_init: A pointer to a default initialized variable of this type. | |
49 | * _copy: A procedure pointer to a copying procedure. | |
8e54f139 TB |
50 | * _final: A procedure pointer to a wrapper function, which frees |
51 | allocatable components and calls FINAL subroutines. | |
310fe80b TB |
52 | * _deallocate: A procedure pointer to a deallocation procedure; nonnull |
53 | only for a recursive derived type. | |
8e54f139 | 54 | |
611c64f0 JW |
55 | After these follow procedure pointer components for the specific |
56 | type-bound procedures. */ | |
d15bac21 JW |
57 | |
58 | ||
59 | #include "config.h" | |
60 | #include "system.h" | |
953bee7c | 61 | #include "coretypes.h" |
d15bac21 JW |
62 | #include "gfortran.h" |
63 | #include "constructor.h" | |
cddf0123 | 64 | #include "target-memory.h" |
d15bac21 | 65 | |
37da591f MM |
66 | /* Inserts a derived type component reference in a data reference chain. |
67 | TS: base type of the ref chain so far, in which we will pick the component | |
68 | REF: the address of the GFC_REF pointer to update | |
69 | NAME: name of the component to insert | |
70 | Note that component insertion makes sense only if we are at the end of | |
71 | the chain (*REF == NULL) or if we are adding a missing "_data" component | |
72 | to access the actual contents of a class object. */ | |
73 | ||
74 | static void | |
75 | insert_component_ref (gfc_typespec *ts, gfc_ref **ref, const char * const name) | |
76 | { | |
37da591f | 77 | gfc_ref *new_ref; |
4874b4d2 | 78 | int wcnt, ecnt; |
37da591f MM |
79 | |
80 | gcc_assert (ts->type == BT_DERIVED || ts->type == BT_CLASS); | |
37da591f | 81 | |
4874b4d2 SK |
82 | gfc_find_component (ts->u.derived, name, true, true, &new_ref); |
83 | ||
84 | gfc_get_errors (&wcnt, &ecnt); | |
85 | if (ecnt > 0 && !new_ref) | |
86 | return; | |
37da591f | 87 | gcc_assert (new_ref->u.c.component); |
4874b4d2 | 88 | |
f6288c24 FR |
89 | while (new_ref->next) |
90 | new_ref = new_ref->next; | |
91 | new_ref->next = *ref; | |
37da591f MM |
92 | |
93 | if (new_ref->next) | |
94 | { | |
95 | gfc_ref *next = NULL; | |
96 | ||
97 | /* We need to update the base type in the trailing reference chain to | |
98 | that of the new component. */ | |
99 | ||
100 | gcc_assert (strcmp (name, "_data") == 0); | |
101 | ||
102 | if (new_ref->next->type == REF_COMPONENT) | |
103 | next = new_ref->next; | |
104 | else if (new_ref->next->type == REF_ARRAY | |
105 | && new_ref->next->next | |
106 | && new_ref->next->next->type == REF_COMPONENT) | |
107 | next = new_ref->next->next; | |
108 | ||
109 | if (next != NULL) | |
110 | { | |
111 | gcc_assert (new_ref->u.c.component->ts.type == BT_CLASS | |
112 | || new_ref->u.c.component->ts.type == BT_DERIVED); | |
113 | next->u.c.sym = new_ref->u.c.component->ts.u.derived; | |
114 | } | |
115 | } | |
116 | ||
117 | *ref = new_ref; | |
118 | } | |
119 | ||
120 | ||
121 | /* Tells whether we need to add a "_data" reference to access REF subobject | |
122 | from an object of type TS. If FIRST_REF_IN_CHAIN is set, then the base | |
123 | object accessed by REF is a variable; in other words it is a full object, | |
124 | not a subobject. */ | |
125 | ||
126 | static bool | |
127 | class_data_ref_missing (gfc_typespec *ts, gfc_ref *ref, bool first_ref_in_chain) | |
128 | { | |
129 | /* Only class containers may need the "_data" reference. */ | |
130 | if (ts->type != BT_CLASS) | |
131 | return false; | |
132 | ||
133 | /* Accessing a class container with an array reference is certainly wrong. */ | |
134 | if (ref->type != REF_COMPONENT) | |
135 | return true; | |
136 | ||
137 | /* Accessing the class container's fields is fine. */ | |
138 | if (ref->u.c.component->name[0] == '_') | |
139 | return false; | |
140 | ||
141 | /* At this point we have a class container with a non class container's field | |
142 | component reference. We don't want to add the "_data" component if we are | |
143 | at the first reference and the symbol's type is an extended derived type. | |
144 | In that case, conv_parent_component_references will do the right thing so | |
145 | it is not absolutely necessary. Omitting it prevents a regression (see | |
146 | class_41.f03) in the interface mapping mechanism. When evaluating string | |
147 | lengths depending on dummy arguments, we create a fake symbol with a type | |
148 | equal to that of the dummy type. However, because of type extension, | |
149 | the backend type (corresponding to the actual argument) can have a | |
150 | different (extended) type. Adding the "_data" component explicitly, using | |
151 | the base type, confuses the gfc_conv_component_ref code which deals with | |
152 | the extended type. */ | |
153 | if (first_ref_in_chain && ts->u.derived->attr.extension) | |
154 | return false; | |
155 | ||
156 | /* We have a class container with a non class container's field component | |
157 | reference that doesn't fall into the above. */ | |
158 | return true; | |
159 | } | |
160 | ||
161 | ||
162 | /* Browse through a data reference chain and add the missing "_data" references | |
163 | when a subobject of a class object is accessed without it. | |
164 | Note that it doesn't add the "_data" reference when the class container | |
165 | is the last element in the reference chain. */ | |
166 | ||
167 | void | |
168 | gfc_fix_class_refs (gfc_expr *e) | |
169 | { | |
170 | gfc_typespec *ts; | |
171 | gfc_ref **ref; | |
172 | ||
173 | if ((e->expr_type != EXPR_VARIABLE | |
174 | && e->expr_type != EXPR_FUNCTION) | |
175 | || (e->expr_type == EXPR_FUNCTION | |
176 | && e->value.function.isym != NULL)) | |
177 | return; | |
178 | ||
d00be3a3 SK |
179 | if (e->expr_type == EXPR_VARIABLE) |
180 | ts = &e->symtree->n.sym->ts; | |
181 | else | |
182 | { | |
183 | gfc_symbol *func; | |
184 | ||
185 | gcc_assert (e->expr_type == EXPR_FUNCTION); | |
186 | if (e->value.function.esym != NULL) | |
187 | func = e->value.function.esym; | |
188 | else | |
189 | func = e->symtree->n.sym; | |
190 | ||
191 | if (func->result != NULL) | |
192 | ts = &func->result->ts; | |
193 | else | |
194 | ts = &func->ts; | |
195 | } | |
37da591f MM |
196 | |
197 | for (ref = &e->ref; *ref != NULL; ref = &(*ref)->next) | |
198 | { | |
199 | if (class_data_ref_missing (ts, *ref, ref == &e->ref)) | |
200 | insert_component_ref (ts, ref, "_data"); | |
201 | ||
202 | if ((*ref)->type == REF_COMPONENT) | |
203 | ts = &(*ref)->u.c.component->ts; | |
204 | } | |
205 | } | |
206 | ||
207 | ||
d15bac21 | 208 | /* Insert a reference to the component of the given name. |
b04533af | 209 | Only to be used with CLASS containers and vtables. */ |
d15bac21 JW |
210 | |
211 | void | |
212 | gfc_add_component_ref (gfc_expr *e, const char *name) | |
213 | { | |
f6288c24 | 214 | gfc_component *c; |
d15bac21 | 215 | gfc_ref **tail = &(e->ref); |
f6288c24 | 216 | gfc_ref *ref, *next = NULL; |
d15bac21 JW |
217 | gfc_symbol *derived = e->symtree->n.sym->ts.u.derived; |
218 | while (*tail != NULL) | |
219 | { | |
220 | if ((*tail)->type == REF_COMPONENT) | |
c49ea23d PT |
221 | { |
222 | if (strcmp ((*tail)->u.c.component->name, "_data") == 0 | |
223 | && (*tail)->next | |
224 | && (*tail)->next->type == REF_ARRAY | |
225 | && (*tail)->next->next == NULL) | |
226 | return; | |
227 | derived = (*tail)->u.c.component->ts.u.derived; | |
228 | } | |
d15bac21 JW |
229 | if ((*tail)->type == REF_ARRAY && (*tail)->next == NULL) |
230 | break; | |
231 | tail = &((*tail)->next); | |
232 | } | |
70c884a4 | 233 | if (derived && derived->components && derived->components->next && |
5f395580 | 234 | derived->components->next->ts.type == BT_DERIVED && |
9b6da3c7 JW |
235 | derived->components->next->ts.u.derived == NULL) |
236 | { | |
237 | /* Fix up missing vtype. */ | |
238 | gfc_symbol *vtab = gfc_find_derived_vtab (derived->components->ts.u.derived); | |
239 | gcc_assert (vtab); | |
240 | derived->components->next->ts.u.derived = vtab->ts.u.derived; | |
241 | } | |
b04533af | 242 | if (*tail != NULL && strcmp (name, "_data") == 0) |
d15bac21 | 243 | next = *tail; |
34d9d749 AV |
244 | else |
245 | /* Avoid losing memory. */ | |
246 | gfc_free_ref_list (*tail); | |
f6288c24 | 247 | c = gfc_find_component (derived, name, true, true, tail); |
9cd74e8f SK |
248 | |
249 | if (c) { | |
250 | for (ref = *tail; ref->next; ref = ref->next) | |
251 | ; | |
252 | ref->next = next; | |
253 | if (!next) | |
254 | e->ts = c->ts; | |
255 | } | |
d15bac21 JW |
256 | } |
257 | ||
258 | ||
c49ea23d PT |
259 | /* This is used to add both the _data component reference and an array |
260 | reference to class expressions. Used in translation of intrinsic | |
261 | array inquiry functions. */ | |
262 | ||
263 | void | |
264 | gfc_add_class_array_ref (gfc_expr *e) | |
265 | { | |
c62c6622 | 266 | int rank = CLASS_DATA (e)->as->rank; |
c49ea23d PT |
267 | gfc_array_spec *as = CLASS_DATA (e)->as; |
268 | gfc_ref *ref = NULL; | |
d42844f1 | 269 | gfc_add_data_component (e); |
c49ea23d PT |
270 | e->rank = rank; |
271 | for (ref = e->ref; ref; ref = ref->next) | |
272 | if (!ref->next) | |
273 | break; | |
274 | if (ref->type != REF_ARRAY) | |
275 | { | |
276 | ref->next = gfc_get_ref (); | |
277 | ref = ref->next; | |
278 | ref->type = REF_ARRAY; | |
279 | ref->u.ar.type = AR_FULL; | |
8b704316 | 280 | ref->u.ar.as = as; |
c49ea23d PT |
281 | } |
282 | } | |
283 | ||
284 | ||
285 | /* Unfortunately, class array expressions can appear in various conditions; | |
286 | with and without both _data component and an arrayspec. This function | |
287 | deals with that variability. The previous reference to 'ref' is to a | |
288 | class array. */ | |
289 | ||
290 | static bool | |
291 | class_array_ref_detected (gfc_ref *ref, bool *full_array) | |
292 | { | |
293 | bool no_data = false; | |
294 | bool with_data = false; | |
295 | ||
296 | /* An array reference with no _data component. */ | |
297 | if (ref && ref->type == REF_ARRAY | |
298 | && !ref->next | |
299 | && ref->u.ar.type != AR_ELEMENT) | |
300 | { | |
301 | if (full_array) | |
302 | *full_array = ref->u.ar.type == AR_FULL; | |
303 | no_data = true; | |
304 | } | |
305 | ||
306 | /* Cover cases where _data appears, with or without an array ref. */ | |
307 | if (ref && ref->type == REF_COMPONENT | |
308 | && strcmp (ref->u.c.component->name, "_data") == 0) | |
309 | { | |
310 | if (!ref->next) | |
311 | { | |
312 | with_data = true; | |
313 | if (full_array) | |
314 | *full_array = true; | |
315 | } | |
316 | else if (ref->next && ref->next->type == REF_ARRAY | |
c49ea23d | 317 | && ref->type == REF_COMPONENT |
c49ea23d PT |
318 | && ref->next->u.ar.type != AR_ELEMENT) |
319 | { | |
320 | with_data = true; | |
321 | if (full_array) | |
322 | *full_array = ref->next->u.ar.type == AR_FULL; | |
323 | } | |
324 | } | |
325 | ||
326 | return no_data || with_data; | |
327 | } | |
328 | ||
329 | ||
330 | /* Returns true if the expression contains a reference to a class | |
331 | array. Notice that class array elements return false. */ | |
332 | ||
333 | bool | |
334 | gfc_is_class_array_ref (gfc_expr *e, bool *full_array) | |
335 | { | |
336 | gfc_ref *ref; | |
337 | ||
338 | if (!e->rank) | |
339 | return false; | |
340 | ||
341 | if (full_array) | |
342 | *full_array= false; | |
343 | ||
344 | /* Is this a class array object? ie. Is the symbol of type class? */ | |
345 | if (e->symtree | |
346 | && e->symtree->n.sym->ts.type == BT_CLASS | |
347 | && CLASS_DATA (e->symtree->n.sym) | |
348 | && CLASS_DATA (e->symtree->n.sym)->attr.dimension | |
349 | && class_array_ref_detected (e->ref, full_array)) | |
350 | return true; | |
351 | ||
352 | /* Or is this a class array component reference? */ | |
353 | for (ref = e->ref; ref; ref = ref->next) | |
354 | { | |
355 | if (ref->type == REF_COMPONENT | |
356 | && ref->u.c.component->ts.type == BT_CLASS | |
357 | && CLASS_DATA (ref->u.c.component)->attr.dimension | |
358 | && class_array_ref_detected (ref->next, full_array)) | |
359 | return true; | |
360 | } | |
361 | ||
362 | return false; | |
363 | } | |
364 | ||
365 | ||
366 | /* Returns true if the expression is a reference to a class | |
367 | scalar. This function is necessary because such expressions | |
368 | can be dressed with a reference to the _data component and so | |
369 | have a type other than BT_CLASS. */ | |
370 | ||
371 | bool | |
372 | gfc_is_class_scalar_expr (gfc_expr *e) | |
373 | { | |
374 | gfc_ref *ref; | |
375 | ||
376 | if (e->rank) | |
377 | return false; | |
378 | ||
379 | /* Is this a class object? */ | |
380 | if (e->symtree | |
381 | && e->symtree->n.sym->ts.type == BT_CLASS | |
382 | && CLASS_DATA (e->symtree->n.sym) | |
383 | && !CLASS_DATA (e->symtree->n.sym)->attr.dimension | |
384 | && (e->ref == NULL | |
dc9e0b66 AV |
385 | || (e->ref->type == REF_COMPONENT |
386 | && strcmp (e->ref->u.c.component->name, "_data") == 0 | |
c49ea23d PT |
387 | && e->ref->next == NULL))) |
388 | return true; | |
389 | ||
390 | /* Or is the final reference BT_CLASS or _data? */ | |
391 | for (ref = e->ref; ref; ref = ref->next) | |
392 | { | |
393 | if (ref->type == REF_COMPONENT | |
394 | && ref->u.c.component->ts.type == BT_CLASS | |
395 | && CLASS_DATA (ref->u.c.component) | |
396 | && !CLASS_DATA (ref->u.c.component)->attr.dimension | |
397 | && (ref->next == NULL | |
dc9e0b66 AV |
398 | || (ref->next->type == REF_COMPONENT |
399 | && strcmp (ref->next->u.c.component->name, "_data") == 0 | |
c49ea23d PT |
400 | && ref->next->next == NULL))) |
401 | return true; | |
402 | } | |
403 | ||
404 | return false; | |
405 | } | |
406 | ||
407 | ||
5bf5fa56 MM |
408 | /* Tells whether the expression E is a reference to a (scalar) class container. |
409 | Scalar because array class containers usually have an array reference after | |
410 | them, and gfc_fix_class_refs will add the missing "_data" component reference | |
411 | in that case. */ | |
412 | ||
413 | bool | |
414 | gfc_is_class_container_ref (gfc_expr *e) | |
415 | { | |
416 | gfc_ref *ref; | |
417 | bool result; | |
418 | ||
419 | if (e->expr_type != EXPR_VARIABLE) | |
420 | return e->ts.type == BT_CLASS; | |
421 | ||
422 | if (e->symtree->n.sym->ts.type == BT_CLASS) | |
423 | result = true; | |
424 | else | |
425 | result = false; | |
426 | ||
427 | for (ref = e->ref; ref; ref = ref->next) | |
428 | { | |
429 | if (ref->type != REF_COMPONENT) | |
430 | result = false; | |
431 | else if (ref->u.c.component->ts.type == BT_CLASS) | |
8b704316 | 432 | result = true; |
5bf5fa56 MM |
433 | else |
434 | result = false; | |
435 | } | |
436 | ||
437 | return result; | |
438 | } | |
439 | ||
440 | ||
2cc6320d JW |
441 | /* Build an initializer for CLASS pointers, |
442 | initializing the _data component to the init_expr (or NULL) and the _vptr | |
443 | component to the corresponding type (or the declared type, given by ts). */ | |
d15bac21 JW |
444 | |
445 | gfc_expr * | |
2cc6320d | 446 | gfc_class_initializer (gfc_typespec *ts, gfc_expr *init_expr) |
d15bac21 JW |
447 | { |
448 | gfc_expr *init; | |
449 | gfc_component *comp; | |
8b704316 | 450 | gfc_symbol *vtab = NULL; |
8b704316 | 451 | |
7289d1c9 JW |
452 | if (init_expr && init_expr->expr_type != EXPR_NULL) |
453 | vtab = gfc_find_vtab (&init_expr->ts); | |
8b704316 | 454 | else |
7289d1c9 | 455 | vtab = gfc_find_vtab (ts); |
8b704316 | 456 | |
d15bac21 JW |
457 | init = gfc_get_structure_constructor_expr (ts->type, ts->kind, |
458 | &ts->u.derived->declared_at); | |
459 | init->ts = *ts; | |
8b704316 | 460 | |
d15bac21 JW |
461 | for (comp = ts->u.derived->components; comp; comp = comp->next) |
462 | { | |
463 | gfc_constructor *ctor = gfc_constructor_get(); | |
8b704316 PT |
464 | if (strcmp (comp->name, "_vptr") == 0 && vtab) |
465 | ctor->expr = gfc_lval_expr_from_sym (vtab); | |
2cc6320d JW |
466 | else if (init_expr && init_expr->expr_type != EXPR_NULL) |
467 | ctor->expr = gfc_copy_expr (init_expr); | |
0d87fa8c JW |
468 | else |
469 | ctor->expr = gfc_get_null_expr (NULL); | |
d15bac21 JW |
470 | gfc_constructor_append (&init->value.constructor, ctor); |
471 | } | |
472 | ||
473 | return init; | |
474 | } | |
475 | ||
476 | ||
b04533af JW |
477 | /* Create a unique string identifier for a derived type, composed of its name |
478 | and module name. This is used to construct unique names for the class | |
479 | containers and vtab symbols. */ | |
480 | ||
ac932bfc HA |
481 | static char * |
482 | get_unique_type_string (gfc_symbol *derived) | |
b52956be | 483 | { |
3ee9d824 | 484 | const char *dt_name; |
ac932bfc HA |
485 | char *string; |
486 | size_t len; | |
8b704316 | 487 | if (derived->attr.unlimited_polymorphic) |
3ee9d824 | 488 | dt_name = "STAR"; |
8b704316 | 489 | else |
3ee9d824 | 490 | dt_name = gfc_dt_upper_string (derived->name); |
ac932bfc | 491 | len = strlen (dt_name) + 2; |
8b704316 | 492 | if (derived->attr.unlimited_polymorphic) |
ac932bfc HA |
493 | { |
494 | string = XNEWVEC (char, len); | |
495 | sprintf (string, "_%s", dt_name); | |
496 | } | |
8b704316 | 497 | else if (derived->module) |
ac932bfc HA |
498 | { |
499 | string = XNEWVEC (char, strlen (derived->module) + len); | |
500 | sprintf (string, "%s_%s", derived->module, dt_name); | |
501 | } | |
4fa02692 | 502 | else if (derived->ns->proc_name) |
ac932bfc HA |
503 | { |
504 | string = XNEWVEC (char, strlen (derived->ns->proc_name->name) + len); | |
505 | sprintf (string, "%s_%s", derived->ns->proc_name->name, dt_name); | |
506 | } | |
4fa02692 | 507 | else |
ac932bfc HA |
508 | { |
509 | string = XNEWVEC (char, len); | |
510 | sprintf (string, "_%s", dt_name); | |
511 | } | |
512 | return string; | |
4fa02692 JW |
513 | } |
514 | ||
515 | ||
516 | /* A relative of 'get_unique_type_string' which makes sure the generated | |
517 | string will not be too long (replacing it by a hash string if needed). */ | |
518 | ||
519 | static void | |
520 | get_unique_hashed_string (char *string, gfc_symbol *derived) | |
521 | { | |
b342cfd6 | 522 | /* Provide sufficient space to hold "symbol.symbol_symbol". */ |
ac932bfc HA |
523 | char *tmp; |
524 | tmp = get_unique_type_string (derived); | |
cb83a137 | 525 | /* If string is too long, use hash value in hex representation (allow for |
2419ff64 TB |
526 | extra decoration, cf. gfc_build_class_symbol & gfc_find_derived_vtab). |
527 | We need space to for 15 characters "__class_" + symbol name + "_%d_%da", | |
528 | where %d is the (co)rank which can be up to n = 15. */ | |
529 | if (strlen (tmp) > GFC_MAX_SYMBOL_LEN - 15) | |
4fa02692 JW |
530 | { |
531 | int h = gfc_hash_value (derived); | |
532 | sprintf (string, "%X", h); | |
533 | } | |
534 | else | |
535 | strcpy (string, tmp); | |
ac932bfc | 536 | free (tmp); |
4fa02692 JW |
537 | } |
538 | ||
539 | ||
540 | /* Assign a hash value for a derived type. The algorithm is that of SDBM. */ | |
541 | ||
542 | unsigned int | |
543 | gfc_hash_value (gfc_symbol *sym) | |
544 | { | |
545 | unsigned int hash = 0; | |
b342cfd6 | 546 | /* Provide sufficient space to hold "symbol.symbol_symbol". */ |
ac932bfc | 547 | char *c; |
4fa02692 | 548 | int i, len; |
8b704316 | 549 | |
ac932bfc HA |
550 | c = get_unique_type_string (sym); |
551 | len = strlen (c); | |
8b704316 PT |
552 | |
553 | for (i = 0; i < len; i++) | |
554 | hash = (hash << 6) + (hash << 16) - hash + c[i]; | |
555 | ||
ac932bfc | 556 | free (c); |
8b704316 PT |
557 | /* Return the hash but take the modulus for the sake of module read, |
558 | even though this slightly increases the chance of collision. */ | |
559 | return (hash % 100000000); | |
560 | } | |
561 | ||
562 | ||
563 | /* Assign a hash value for an intrinsic type. The algorithm is that of SDBM. */ | |
564 | ||
565 | unsigned int | |
566 | gfc_intrinsic_hash_value (gfc_typespec *ts) | |
567 | { | |
568 | unsigned int hash = 0; | |
5958b926 | 569 | const char *c = gfc_typename (ts, true); |
8b704316 PT |
570 | int i, len; |
571 | ||
572 | len = strlen (c); | |
573 | ||
4fa02692 JW |
574 | for (i = 0; i < len; i++) |
575 | hash = (hash << 6) + (hash << 16) - hash + c[i]; | |
576 | ||
577 | /* Return the hash but take the modulus for the sake of module read, | |
578 | even though this slightly increases the chance of collision. */ | |
579 | return (hash % 100000000); | |
b04533af JW |
580 | } |
581 | ||
582 | ||
5b384b3d PT |
583 | /* Get the _len component from a class/derived object storing a string. |
584 | For unlimited polymorphic entities a ref to the _data component is available | |
585 | while a ref to the _len component is needed. This routine traverese the | |
586 | ref-chain and strips the last ref to a _data from it replacing it with a | |
587 | ref to the _len component. */ | |
588 | ||
589 | gfc_expr * | |
9e6644c6 | 590 | gfc_get_len_component (gfc_expr *e, int k) |
5b384b3d PT |
591 | { |
592 | gfc_expr *ptr; | |
593 | gfc_ref *ref, **last; | |
594 | ||
595 | ptr = gfc_copy_expr (e); | |
596 | ||
597 | /* We need to remove the last _data component ref from ptr. */ | |
598 | last = &(ptr->ref); | |
599 | ref = ptr->ref; | |
600 | while (ref) | |
601 | { | |
602 | if (!ref->next | |
603 | && ref->type == REF_COMPONENT | |
604 | && strcmp ("_data", ref->u.c.component->name)== 0) | |
605 | { | |
606 | gfc_free_ref_list (ref); | |
607 | *last = NULL; | |
608 | break; | |
609 | } | |
610 | last = &(ref->next); | |
611 | ref = ref->next; | |
612 | } | |
613 | /* And replace if with a ref to the _len component. */ | |
d42844f1 | 614 | gfc_add_len_component (ptr); |
9e6644c6 TK |
615 | if (k != ptr->ts.kind) |
616 | { | |
617 | gfc_typespec ts; | |
618 | gfc_clear_ts (&ts); | |
619 | ts.type = BT_INTEGER; | |
620 | ts.kind = k; | |
621 | gfc_convert_type_warn (ptr, &ts, 2, 0); | |
622 | } | |
5b384b3d PT |
623 | return ptr; |
624 | } | |
625 | ||
626 | ||
d15bac21 JW |
627 | /* Build a polymorphic CLASS entity, using the symbol that comes from |
628 | build_sym. A CLASS entity is represented by an encapsulating type, | |
b04533af | 629 | which contains the declared type as '_data' component, plus a pointer |
5b384b3d PT |
630 | component '_vptr' which determines the dynamic type. When this CLASS |
631 | entity is unlimited polymorphic, then also add a component '_len' to | |
632 | store the length of string when that is stored in it. */ | |
a2c59300 | 633 | static int ctr = 0; |
d15bac21 | 634 | |
524af0d6 | 635 | bool |
d15bac21 | 636 | gfc_build_class_symbol (gfc_typespec *ts, symbol_attribute *attr, |
9b6da3c7 | 637 | gfc_array_spec **as) |
d15bac21 | 638 | { |
2004617a QZ |
639 | char tname[GFC_MAX_SYMBOL_LEN+1]; |
640 | char *name; | |
d15bac21 JW |
641 | gfc_symbol *fclass; |
642 | gfc_symbol *vtab; | |
643 | gfc_component *c; | |
8b704316 | 644 | gfc_namespace *ns; |
c62c6622 | 645 | int rank; |
c49ea23d | 646 | |
fc2655fb TB |
647 | gcc_assert (as); |
648 | ||
528622fd JW |
649 | if (attr->class_ok) |
650 | /* Class container has already been built. */ | |
524af0d6 | 651 | return true; |
528622fd | 652 | |
7d40e49f | 653 | attr->class_ok = attr->dummy || attr->pointer || attr->allocatable |
aa271860 | 654 | || attr->select_type_temporary || attr->associate_var; |
8b704316 | 655 | |
528622fd | 656 | if (!attr->class_ok) |
67914693 | 657 | /* We cannot build the class container yet. */ |
524af0d6 | 658 | return true; |
d15bac21 JW |
659 | |
660 | /* Determine the name of the encapsulating type. */ | |
c62c6622 | 661 | rank = !(*as) || (*as)->rank == -1 ? GFC_MAX_DIMENSIONS : (*as)->rank; |
70c884a4 HA |
662 | |
663 | if (!ts->u.derived) | |
664 | return false; | |
665 | ||
4fa02692 | 666 | get_unique_hashed_string (tname, ts->u.derived); |
2419ff64 | 667 | if ((*as) && attr->allocatable) |
2004617a | 668 | name = xasprintf ("__class_%s_%d_%da", tname, rank, (*as)->corank); |
c62c6622 | 669 | else if ((*as) && attr->pointer) |
2004617a | 670 | name = xasprintf ("__class_%s_%d_%dp", tname, rank, (*as)->corank); |
2419ff64 | 671 | else if ((*as)) |
2004617a | 672 | name = xasprintf ("__class_%s_%d_%dt", tname, rank, (*as)->corank); |
d15bac21 | 673 | else if (attr->pointer) |
2004617a | 674 | name = xasprintf ("__class_%s_p", tname); |
d15bac21 | 675 | else if (attr->allocatable) |
2004617a | 676 | name = xasprintf ("__class_%s_a", tname); |
d15bac21 | 677 | else |
2004617a | 678 | name = xasprintf ("__class_%s_t", tname); |
d15bac21 | 679 | |
8b704316 PT |
680 | if (ts->u.derived->attr.unlimited_polymorphic) |
681 | { | |
682 | /* Find the top-level namespace. */ | |
683 | for (ns = gfc_current_ns; ns; ns = ns->parent) | |
684 | if (!ns->parent) | |
685 | break; | |
686 | } | |
687 | else | |
688 | ns = ts->u.derived->ns; | |
689 | ||
a2c59300 PT |
690 | /* Although this might seem to be counterintuitive, we can build separate |
691 | class types with different array specs because the TKR interface checks | |
692 | work on the declared type. All array type other than deferred shape or | |
693 | assumed rank are added to the function namespace to ensure that they | |
694 | are properly distinguished. */ | |
695 | if (attr->dummy && !attr->codimension && (*as) | |
696 | && !((*as)->type == AS_DEFERRED || (*as)->type == AS_ASSUMED_RANK)) | |
697 | { | |
698 | char *sname; | |
699 | ns = gfc_current_ns; | |
700 | gfc_find_symbol (name, ns, 0, &fclass); | |
701 | /* If a local class type with this name already exists, update the | |
702 | name with an index. */ | |
703 | if (fclass) | |
704 | { | |
705 | fclass = NULL; | |
706 | sname = xasprintf ("%s_%d", name, ++ctr); | |
707 | free (name); | |
708 | name = sname; | |
709 | } | |
710 | } | |
711 | else | |
712 | gfc_find_symbol (name, ns, 0, &fclass); | |
713 | ||
d15bac21 JW |
714 | if (fclass == NULL) |
715 | { | |
716 | gfc_symtree *st; | |
717 | /* If not there, create a new symbol. */ | |
8b704316 PT |
718 | fclass = gfc_new_symbol (name, ns); |
719 | st = gfc_new_symtree (&ns->sym_root, name); | |
d15bac21 JW |
720 | st->n.sym = fclass; |
721 | gfc_set_sym_referenced (fclass); | |
722 | fclass->refs++; | |
723 | fclass->ts.type = BT_UNKNOWN; | |
8b704316 | 724 | if (!ts->u.derived->attr.unlimited_polymorphic) |
94241120 | 725 | fclass->attr.abstract = ts->u.derived->attr.abstract; |
42ff605a | 726 | fclass->f2k_derived = gfc_get_namespace (NULL, 0); |
cddf0123 | 727 | if (!gfc_add_flavor (&fclass->attr, FL_DERIVED, NULL, |
524af0d6 JB |
728 | &gfc_current_locus)) |
729 | return false; | |
d15bac21 | 730 | |
b04533af | 731 | /* Add component '_data'. */ |
524af0d6 JB |
732 | if (!gfc_add_component (fclass, "_data", &c)) |
733 | return false; | |
d15bac21 JW |
734 | c->ts = *ts; |
735 | c->ts.type = BT_DERIVED; | |
736 | c->attr.access = ACCESS_PRIVATE; | |
737 | c->ts.u.derived = ts->u.derived; | |
738 | c->attr.class_pointer = attr->pointer; | |
7d40e49f TB |
739 | c->attr.pointer = attr->pointer || (attr->dummy && !attr->allocatable) |
740 | || attr->select_type_temporary; | |
d15bac21 JW |
741 | c->attr.allocatable = attr->allocatable; |
742 | c->attr.dimension = attr->dimension; | |
743 | c->attr.codimension = attr->codimension; | |
8b704316 | 744 | c->attr.abstract = fclass->attr.abstract; |
d15bac21 JW |
745 | c->as = (*as); |
746 | c->initializer = NULL; | |
747 | ||
b04533af | 748 | /* Add component '_vptr'. */ |
524af0d6 JB |
749 | if (!gfc_add_component (fclass, "_vptr", &c)) |
750 | return false; | |
d15bac21 | 751 | c->ts.type = BT_DERIVED; |
5b384b3d PT |
752 | c->attr.access = ACCESS_PRIVATE; |
753 | c->attr.pointer = 1; | |
9b6da3c7 JW |
754 | |
755 | if (ts->u.derived->attr.unlimited_polymorphic) | |
d15bac21 | 756 | { |
88ce8031 | 757 | vtab = gfc_find_derived_vtab (ts->u.derived); |
d15bac21 JW |
758 | gcc_assert (vtab); |
759 | c->ts.u.derived = vtab->ts.u.derived; | |
5b384b3d PT |
760 | |
761 | /* Add component '_len'. Only unlimited polymorphic pointers may | |
762 | have a string assigned to them, i.e., only those need the _len | |
763 | component. */ | |
764 | if (!gfc_add_component (fclass, "_len", &c)) | |
765 | return false; | |
766 | c->ts.type = BT_INTEGER; | |
40cc684d | 767 | c->ts.kind = gfc_charlen_int_kind; |
5b384b3d PT |
768 | c->attr.access = ACCESS_PRIVATE; |
769 | c->attr.artificial = 1; | |
d15bac21 | 770 | } |
9b6da3c7 JW |
771 | else |
772 | /* Build vtab later. */ | |
773 | c->ts.u.derived = NULL; | |
d15bac21 JW |
774 | } |
775 | ||
8b704316 | 776 | if (!ts->u.derived->attr.unlimited_polymorphic) |
d15bac21 | 777 | { |
8b704316 PT |
778 | /* Since the extension field is 8 bit wide, we can only have |
779 | up to 255 extension levels. */ | |
780 | if (ts->u.derived->attr.extension == 255) | |
781 | { | |
c4100eae | 782 | gfc_error ("Maximum extension level reached with type %qs at %L", |
8b704316 | 783 | ts->u.derived->name, &ts->u.derived->declared_at); |
524af0d6 | 784 | return false; |
8b704316 PT |
785 | } |
786 | ||
787 | fclass->attr.extension = ts->u.derived->attr.extension + 1; | |
788 | fclass->attr.alloc_comp = ts->u.derived->attr.alloc_comp; | |
558f3755 | 789 | fclass->attr.coarray_comp = ts->u.derived->attr.coarray_comp; |
d15bac21 | 790 | } |
8b704316 | 791 | |
d15bac21 JW |
792 | fclass->attr.is_class = 1; |
793 | ts->u.derived = fclass; | |
c49ea23d PT |
794 | attr->allocatable = attr->pointer = attr->dimension = attr->codimension = 0; |
795 | (*as) = NULL; | |
2004617a | 796 | free (name); |
524af0d6 | 797 | return true; |
d15bac21 JW |
798 | } |
799 | ||
800 | ||
88ce8031 JW |
801 | /* Add a procedure pointer component to the vtype |
802 | to represent a specific type-bound procedure. */ | |
803 | ||
d15bac21 | 804 | static void |
88ce8031 | 805 | add_proc_comp (gfc_symbol *vtype, const char *name, gfc_typebound_proc *tb) |
d15bac21 | 806 | { |
88ce8031 | 807 | gfc_component *c; |
fd83db3d | 808 | |
5d382ed6 | 809 | if (tb->non_overridable && !tb->overridden) |
fd83db3d | 810 | return; |
8b704316 | 811 | |
f6288c24 | 812 | c = gfc_find_component (vtype, name, true, true, NULL); |
88ce8031 JW |
813 | |
814 | if (c == NULL) | |
d15bac21 | 815 | { |
88ce8031 | 816 | /* Add procedure component. */ |
524af0d6 | 817 | if (!gfc_add_component (vtype, name, &c)) |
d15bac21 | 818 | return; |
d15bac21 | 819 | |
88ce8031 JW |
820 | if (!c->tb) |
821 | c->tb = XCNEW (gfc_typebound_proc); | |
822 | *c->tb = *tb; | |
823 | c->tb->ppc = 1; | |
824 | c->attr.procedure = 1; | |
825 | c->attr.proc_pointer = 1; | |
826 | c->attr.flavor = FL_PROCEDURE; | |
827 | c->attr.access = ACCESS_PRIVATE; | |
828 | c->attr.external = 1; | |
829 | c->attr.untyped = 1; | |
830 | c->attr.if_source = IFSRC_IFBODY; | |
d15bac21 JW |
831 | } |
832 | else if (c->attr.proc_pointer && c->tb) | |
833 | { | |
88ce8031 | 834 | *c->tb = *tb; |
d15bac21 | 835 | c->tb->ppc = 1; |
1d0134b3 JW |
836 | } |
837 | ||
838 | if (tb->u.specific) | |
839 | { | |
e8ed3750 JW |
840 | gfc_symbol *ifc = tb->u.specific->n.sym; |
841 | c->ts.interface = ifc; | |
1d0134b3 JW |
842 | if (!tb->deferred) |
843 | c->initializer = gfc_get_variable_expr (tb->u.specific); | |
e8ed3750 | 844 | c->attr.pure = ifc->attr.pure; |
d15bac21 JW |
845 | } |
846 | } | |
847 | ||
88ce8031 JW |
848 | |
849 | /* Add all specific type-bound procedures in the symtree 'st' to a vtype. */ | |
850 | ||
d15bac21 | 851 | static void |
88ce8031 | 852 | add_procs_to_declared_vtab1 (gfc_symtree *st, gfc_symbol *vtype) |
d15bac21 | 853 | { |
d15bac21 JW |
854 | if (!st) |
855 | return; | |
856 | ||
857 | if (st->left) | |
88ce8031 | 858 | add_procs_to_declared_vtab1 (st->left, vtype); |
d15bac21 JW |
859 | |
860 | if (st->right) | |
88ce8031 | 861 | add_procs_to_declared_vtab1 (st->right, vtype); |
d15bac21 | 862 | |
8b704316 | 863 | if (st->n.tb && !st->n.tb->error |
aea18e92 | 864 | && !st->n.tb->is_generic && st->n.tb->u.specific) |
88ce8031 | 865 | add_proc_comp (vtype, st->name, st->n.tb); |
d15bac21 JW |
866 | } |
867 | ||
868 | ||
88ce8031 JW |
869 | /* Copy procedure pointers components from the parent type. */ |
870 | ||
d15bac21 | 871 | static void |
88ce8031 | 872 | copy_vtab_proc_comps (gfc_symbol *declared, gfc_symbol *vtype) |
d15bac21 | 873 | { |
88ce8031 | 874 | gfc_component *cmp; |
d15bac21 JW |
875 | gfc_symbol *vtab; |
876 | ||
88ce8031 | 877 | vtab = gfc_find_derived_vtab (declared); |
d15bac21 JW |
878 | |
879 | for (cmp = vtab->ts.u.derived->components; cmp; cmp = cmp->next) | |
880 | { | |
f6288c24 | 881 | if (gfc_find_component (vtype, cmp->name, true, true, NULL)) |
d15bac21 JW |
882 | continue; |
883 | ||
88ce8031 | 884 | add_proc_comp (vtype, cmp->name, cmp->tb); |
d15bac21 JW |
885 | } |
886 | } | |
887 | ||
d15bac21 | 888 | |
8e54f139 TB |
889 | /* Returns true if any of its nonpointer nonallocatable components or |
890 | their nonpointer nonallocatable subcomponents has a finalization | |
891 | subroutine. */ | |
892 | ||
893 | static bool | |
894 | has_finalizer_component (gfc_symbol *derived) | |
895 | { | |
896 | gfc_component *c; | |
897 | ||
898 | for (c = derived->components; c; c = c->next) | |
cdeb16cb JW |
899 | if (c->ts.type == BT_DERIVED && !c->attr.pointer && !c->attr.allocatable) |
900 | { | |
901 | if (c->ts.u.derived->f2k_derived | |
902 | && c->ts.u.derived->f2k_derived->finalizers) | |
903 | return true; | |
904 | ||
905 | /* Stop infinite recursion through this function by inhibiting | |
906 | calls when the derived type and that of the component are | |
907 | the same. */ | |
908 | if (!gfc_compare_derived_types (derived, c->ts.u.derived) | |
909 | && has_finalizer_component (c->ts.u.derived)) | |
910 | return true; | |
911 | } | |
8e54f139 TB |
912 | return false; |
913 | } | |
914 | ||
915 | ||
c9d3fa76 JW |
916 | static bool |
917 | comp_is_finalizable (gfc_component *comp) | |
918 | { | |
9b6da3c7 JW |
919 | if (comp->attr.proc_pointer) |
920 | return false; | |
921 | else if (comp->attr.allocatable && comp->ts.type != BT_CLASS) | |
c9d3fa76 JW |
922 | return true; |
923 | else if (comp->ts.type == BT_DERIVED && !comp->attr.pointer | |
924 | && (comp->ts.u.derived->attr.alloc_comp | |
925 | || has_finalizer_component (comp->ts.u.derived) | |
926 | || (comp->ts.u.derived->f2k_derived | |
927 | && comp->ts.u.derived->f2k_derived->finalizers))) | |
928 | return true; | |
929 | else if (comp->ts.type == BT_CLASS && CLASS_DATA (comp) | |
930 | && CLASS_DATA (comp)->attr.allocatable) | |
931 | return true; | |
932 | else | |
933 | return false; | |
934 | } | |
935 | ||
936 | ||
8e54f139 TB |
937 | /* Call DEALLOCATE for the passed component if it is allocatable, if it is |
938 | neither allocatable nor a pointer but has a finalizer, call it. If it | |
bc7a2337 TB |
939 | is a nonpointer component with allocatable components or has finalizers, walk |
940 | them. Either of them is required; other nonallocatables and pointers aren't | |
8e54f139 TB |
941 | handled gracefully. |
942 | Note: If the component is allocatable, the DEALLOCATE handling takes care | |
943 | of calling the appropriate finalizers, coarray deregistering, and | |
944 | deallocation of allocatable subcomponents. */ | |
945 | ||
946 | static void | |
947 | finalize_component (gfc_expr *expr, gfc_symbol *derived, gfc_component *comp, | |
807b50a7 JW |
948 | gfc_symbol *stat, gfc_symbol *fini_coarray, gfc_code **code, |
949 | gfc_namespace *sub_ns) | |
8e54f139 TB |
950 | { |
951 | gfc_expr *e; | |
952 | gfc_ref *ref; | |
1af22e45 | 953 | gfc_was_finalized *f; |
8e54f139 | 954 | |
c9d3fa76 | 955 | if (!comp_is_finalizable (comp)) |
8e54f139 TB |
956 | return; |
957 | ||
1af22e45 TK |
958 | /* If this expression with this component has been finalized |
959 | already in this namespace, there is nothing to do. */ | |
960 | for (f = sub_ns->was_finalized; f; f = f->next) | |
961 | { | |
962 | if (f->e == expr && f->c == comp) | |
963 | return; | |
964 | } | |
b81f7b83 | 965 | |
8e54f139 TB |
966 | e = gfc_copy_expr (expr); |
967 | if (!e->ref) | |
968 | e->ref = ref = gfc_get_ref (); | |
969 | else | |
970 | { | |
971 | for (ref = e->ref; ref->next; ref = ref->next) | |
972 | ; | |
973 | ref->next = gfc_get_ref (); | |
974 | ref = ref->next; | |
975 | } | |
976 | ref->type = REF_COMPONENT; | |
977 | ref->u.c.sym = derived; | |
978 | ref->u.c.component = comp; | |
979 | e->ts = comp->ts; | |
980 | ||
16023efc | 981 | if (comp->attr.dimension || comp->attr.codimension |
8e54f139 | 982 | || (comp->ts.type == BT_CLASS && CLASS_DATA (comp) |
16023efc TB |
983 | && (CLASS_DATA (comp)->attr.dimension |
984 | || CLASS_DATA (comp)->attr.codimension))) | |
8e54f139 TB |
985 | { |
986 | ref->next = gfc_get_ref (); | |
987 | ref->next->type = REF_ARRAY; | |
8e54f139 TB |
988 | ref->next->u.ar.dimen = 0; |
989 | ref->next->u.ar.as = comp->ts.type == BT_CLASS ? CLASS_DATA (comp)->as | |
990 | : comp->as; | |
991 | e->rank = ref->next->u.ar.as->rank; | |
16023efc | 992 | ref->next->u.ar.type = e->rank ? AR_FULL : AR_ELEMENT; |
8e54f139 TB |
993 | } |
994 | ||
29a7d776 | 995 | /* Call DEALLOCATE (comp, stat=ignore). */ |
8e54f139 TB |
996 | if (comp->attr.allocatable |
997 | || (comp->ts.type == BT_CLASS && CLASS_DATA (comp) | |
998 | && CLASS_DATA (comp)->attr.allocatable)) | |
999 | { | |
29a7d776 TB |
1000 | gfc_code *dealloc, *block = NULL; |
1001 | ||
1002 | /* Add IF (fini_coarray). */ | |
1003 | if (comp->attr.codimension | |
1004 | || (comp->ts.type == BT_CLASS && CLASS_DATA (comp) | |
652960d1 | 1005 | && CLASS_DATA (comp)->attr.codimension)) |
29a7d776 | 1006 | { |
11e5274a | 1007 | block = gfc_get_code (EXEC_IF); |
29a7d776 TB |
1008 | if (*code) |
1009 | { | |
1010 | (*code)->next = block; | |
1011 | (*code) = (*code)->next; | |
1012 | } | |
1013 | else | |
1014 | (*code) = block; | |
1015 | ||
11e5274a | 1016 | block->block = gfc_get_code (EXEC_IF); |
29a7d776 | 1017 | block = block->block; |
29a7d776 TB |
1018 | block->expr1 = gfc_lval_expr_from_sym (fini_coarray); |
1019 | } | |
8e54f139 | 1020 | |
11e5274a | 1021 | dealloc = gfc_get_code (EXEC_DEALLOCATE); |
8e54f139 TB |
1022 | |
1023 | dealloc->ext.alloc.list = gfc_get_alloc (); | |
1024 | dealloc->ext.alloc.list->expr = e; | |
29a7d776 | 1025 | dealloc->expr1 = gfc_lval_expr_from_sym (stat); |
8e54f139 | 1026 | |
807b50a7 JW |
1027 | gfc_code *cond = gfc_get_code (EXEC_IF); |
1028 | cond->block = gfc_get_code (EXEC_IF); | |
1029 | cond->block->expr1 = gfc_get_expr (); | |
1030 | cond->block->expr1->expr_type = EXPR_FUNCTION; | |
1011502b | 1031 | cond->block->expr1->where = gfc_current_locus; |
807b50a7 JW |
1032 | gfc_get_sym_tree ("associated", sub_ns, &cond->block->expr1->symtree, false); |
1033 | cond->block->expr1->symtree->n.sym->attr.flavor = FL_PROCEDURE; | |
1034 | cond->block->expr1->symtree->n.sym->attr.intrinsic = 1; | |
1035 | cond->block->expr1->symtree->n.sym->result = cond->block->expr1->symtree->n.sym; | |
1036 | gfc_commit_symbol (cond->block->expr1->symtree->n.sym); | |
1037 | cond->block->expr1->ts.type = BT_LOGICAL; | |
1038 | cond->block->expr1->ts.kind = gfc_default_logical_kind; | |
1039 | cond->block->expr1->value.function.isym = gfc_intrinsic_function_by_id (GFC_ISYM_ASSOCIATED); | |
1040 | cond->block->expr1->value.function.actual = gfc_get_actual_arglist (); | |
1041 | cond->block->expr1->value.function.actual->expr = gfc_copy_expr (expr); | |
1042 | cond->block->expr1->value.function.actual->next = gfc_get_actual_arglist (); | |
1043 | cond->block->next = dealloc; | |
1044 | ||
29a7d776 | 1045 | if (block) |
807b50a7 | 1046 | block->next = cond; |
29a7d776 | 1047 | else if (*code) |
8e54f139 | 1048 | { |
807b50a7 | 1049 | (*code)->next = cond; |
8e54f139 TB |
1050 | (*code) = (*code)->next; |
1051 | } | |
1052 | else | |
807b50a7 | 1053 | (*code) = cond; |
811f902b | 1054 | |
8e54f139 TB |
1055 | } |
1056 | else if (comp->ts.type == BT_DERIVED | |
1057 | && comp->ts.u.derived->f2k_derived | |
1058 | && comp->ts.u.derived->f2k_derived->finalizers) | |
1059 | { | |
1060 | /* Call FINAL_WRAPPER (comp); */ | |
1061 | gfc_code *final_wrap; | |
1062 | gfc_symbol *vtab; | |
1063 | gfc_component *c; | |
1064 | ||
1065 | vtab = gfc_find_derived_vtab (comp->ts.u.derived); | |
1066 | for (c = vtab->ts.u.derived->components; c; c = c->next) | |
1067 | if (strcmp (c->name, "_final") == 0) | |
1068 | break; | |
1069 | ||
1070 | gcc_assert (c); | |
11e5274a | 1071 | final_wrap = gfc_get_code (EXEC_CALL); |
8e54f139 TB |
1072 | final_wrap->symtree = c->initializer->symtree; |
1073 | final_wrap->resolved_sym = c->initializer->symtree->n.sym; | |
1074 | final_wrap->ext.actual = gfc_get_actual_arglist (); | |
1075 | final_wrap->ext.actual->expr = e; | |
1076 | ||
1077 | if (*code) | |
1078 | { | |
1079 | (*code)->next = final_wrap; | |
1080 | (*code) = (*code)->next; | |
1081 | } | |
1082 | else | |
1083 | (*code) = final_wrap; | |
1084 | } | |
1085 | else | |
1086 | { | |
1087 | gfc_component *c; | |
1088 | ||
1089 | for (c = comp->ts.u.derived->components; c; c = c->next) | |
807b50a7 JW |
1090 | finalize_component (e, comp->ts.u.derived, c, stat, fini_coarray, code, |
1091 | sub_ns); | |
fc2655fb | 1092 | gfc_free_expr (e); |
8e54f139 | 1093 | } |
1af22e45 TK |
1094 | |
1095 | /* Record that this was finalized already in this namespace. */ | |
1096 | f = sub_ns->was_finalized; | |
1097 | sub_ns->was_finalized = XCNEW (gfc_was_finalized); | |
1098 | sub_ns->was_finalized->e = expr; | |
1099 | sub_ns->was_finalized->c = comp; | |
1100 | sub_ns->was_finalized->next = f; | |
8e54f139 TB |
1101 | } |
1102 | ||
1103 | ||
1104 | /* Generate code equivalent to | |
1105 | CALL C_F_POINTER (TRANSFER (TRANSFER (C_LOC (array, cptr), c_intptr) | |
9e04287b | 1106 | + offset, c_ptr), ptr). */ |
8e54f139 TB |
1107 | |
1108 | static gfc_code * | |
9e04287b TB |
1109 | finalization_scalarizer (gfc_symbol *array, gfc_symbol *ptr, |
1110 | gfc_expr *offset, gfc_namespace *sub_ns) | |
8e54f139 TB |
1111 | { |
1112 | gfc_code *block; | |
9e04287b | 1113 | gfc_expr *expr, *expr2; |
8e54f139 TB |
1114 | |
1115 | /* C_F_POINTER(). */ | |
11e5274a | 1116 | block = gfc_get_code (EXEC_CALL); |
8e54f139 TB |
1117 | gfc_get_sym_tree ("c_f_pointer", sub_ns, &block->symtree, true); |
1118 | block->resolved_sym = block->symtree->n.sym; | |
1119 | block->resolved_sym->attr.flavor = FL_PROCEDURE; | |
1120 | block->resolved_sym->attr.intrinsic = 1; | |
cbde6c0f | 1121 | block->resolved_sym->attr.subroutine = 1; |
8e54f139 TB |
1122 | block->resolved_sym->from_intmod = INTMOD_ISO_C_BINDING; |
1123 | block->resolved_sym->intmod_sym_id = ISOCBINDING_F_POINTER; | |
cbde6c0f | 1124 | block->resolved_isym = gfc_intrinsic_subroutine_by_id (GFC_ISYM_C_F_POINTER); |
8e54f139 TB |
1125 | gfc_commit_symbol (block->resolved_sym); |
1126 | ||
1127 | /* C_F_POINTER's first argument: TRANSFER ( <addr>, c_intptr_t). */ | |
1128 | block->ext.actual = gfc_get_actual_arglist (); | |
1129 | block->ext.actual->next = gfc_get_actual_arglist (); | |
1130 | block->ext.actual->next->expr = gfc_get_int_expr (gfc_index_integer_kind, | |
1131 | NULL, 0); | |
1cc0e193 | 1132 | block->ext.actual->next->next = gfc_get_actual_arglist (); /* SIZE. */ |
8e54f139 TB |
1133 | |
1134 | /* The <addr> part: TRANSFER (C_LOC (array), c_intptr_t). */ | |
1135 | ||
8e54f139 TB |
1136 | /* TRANSFER's first argument: C_LOC (array). */ |
1137 | expr = gfc_get_expr (); | |
1138 | expr->expr_type = EXPR_FUNCTION; | |
1139 | gfc_get_sym_tree ("c_loc", sub_ns, &expr->symtree, false); | |
1140 | expr->symtree->n.sym->attr.flavor = FL_PROCEDURE; | |
1141 | expr->symtree->n.sym->intmod_sym_id = ISOCBINDING_LOC; | |
1142 | expr->symtree->n.sym->attr.intrinsic = 1; | |
1143 | expr->symtree->n.sym->from_intmod = INTMOD_ISO_C_BINDING; | |
cbde6c0f | 1144 | expr->value.function.isym = gfc_intrinsic_function_by_id (GFC_ISYM_C_LOC); |
8e54f139 TB |
1145 | expr->value.function.actual = gfc_get_actual_arglist (); |
1146 | expr->value.function.actual->expr | |
1147 | = gfc_lval_expr_from_sym (array); | |
1148 | expr->symtree->n.sym->result = expr->symtree->n.sym; | |
1149 | gfc_commit_symbol (expr->symtree->n.sym); | |
1150 | expr->ts.type = BT_INTEGER; | |
1151 | expr->ts.kind = gfc_index_integer_kind; | |
1011502b | 1152 | expr->where = gfc_current_locus; |
6838c137 TB |
1153 | |
1154 | /* TRANSFER. */ | |
1155 | expr2 = gfc_build_intrinsic_call (sub_ns, GFC_ISYM_TRANSFER, "transfer", | |
cbde6c0f | 1156 | gfc_current_locus, 3, expr, |
6838c137 | 1157 | gfc_get_int_expr (gfc_index_integer_kind, |
cbde6c0f | 1158 | NULL, 0), NULL); |
6838c137 TB |
1159 | expr2->ts.type = BT_INTEGER; |
1160 | expr2->ts.kind = gfc_index_integer_kind; | |
8e54f139 | 1161 | |
8e54f139 TB |
1162 | /* <array addr> + <offset>. */ |
1163 | block->ext.actual->expr = gfc_get_expr (); | |
1164 | block->ext.actual->expr->expr_type = EXPR_OP; | |
1165 | block->ext.actual->expr->value.op.op = INTRINSIC_PLUS; | |
1166 | block->ext.actual->expr->value.op.op1 = expr2; | |
9e04287b | 1167 | block->ext.actual->expr->value.op.op2 = offset; |
8e54f139 | 1168 | block->ext.actual->expr->ts = expr->ts; |
1011502b | 1169 | block->ext.actual->expr->where = gfc_current_locus; |
8e54f139 TB |
1170 | |
1171 | /* C_F_POINTER's 2nd arg: ptr -- and its absent shape=. */ | |
1172 | block->ext.actual->next = gfc_get_actual_arglist (); | |
1173 | block->ext.actual->next->expr = gfc_lval_expr_from_sym (ptr); | |
1174 | block->ext.actual->next->next = gfc_get_actual_arglist (); | |
1175 | ||
1176 | return block; | |
1177 | } | |
1178 | ||
1179 | ||
9e04287b TB |
1180 | /* Calculates the offset to the (idx+1)th element of an array, taking the |
1181 | stride into account. It generates the code: | |
1182 | offset = 0 | |
1183 | do idx2 = 1, rank | |
1184 | offset = offset + mod (idx, sizes(idx2)) / sizes(idx2-1) * strides(idx2) | |
1185 | end do | |
1186 | offset = offset * byte_stride. */ | |
1187 | ||
1188 | static gfc_code* | |
1189 | finalization_get_offset (gfc_symbol *idx, gfc_symbol *idx2, gfc_symbol *offset, | |
1190 | gfc_symbol *strides, gfc_symbol *sizes, | |
1191 | gfc_symbol *byte_stride, gfc_expr *rank, | |
1192 | gfc_code *block, gfc_namespace *sub_ns) | |
1193 | { | |
1194 | gfc_iterator *iter; | |
1195 | gfc_expr *expr, *expr2; | |
1196 | ||
1197 | /* offset = 0. */ | |
11e5274a | 1198 | block->next = gfc_get_code (EXEC_ASSIGN); |
9e04287b | 1199 | block = block->next; |
9e04287b TB |
1200 | block->expr1 = gfc_lval_expr_from_sym (offset); |
1201 | block->expr2 = gfc_get_int_expr (gfc_index_integer_kind, NULL, 0); | |
1202 | ||
1203 | /* Create loop. */ | |
1204 | iter = gfc_get_iterator (); | |
1205 | iter->var = gfc_lval_expr_from_sym (idx2); | |
1206 | iter->start = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
1207 | iter->end = gfc_copy_expr (rank); | |
1208 | iter->step = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
11e5274a | 1209 | block->next = gfc_get_code (EXEC_DO); |
9e04287b | 1210 | block = block->next; |
9e04287b | 1211 | block->ext.iterator = iter; |
11e5274a | 1212 | block->block = gfc_get_code (EXEC_DO); |
9e04287b TB |
1213 | |
1214 | /* Loop body: offset = offset + mod (idx, sizes(idx2)) / sizes(idx2-1) | |
1215 | * strides(idx2). */ | |
1216 | ||
1217 | /* mod (idx, sizes(idx2)). */ | |
6838c137 TB |
1218 | expr = gfc_lval_expr_from_sym (sizes); |
1219 | expr->ref = gfc_get_ref (); | |
1220 | expr->ref->type = REF_ARRAY; | |
1221 | expr->ref->u.ar.as = sizes->as; | |
1222 | expr->ref->u.ar.type = AR_ELEMENT; | |
1223 | expr->ref->u.ar.dimen = 1; | |
1224 | expr->ref->u.ar.dimen_type[0] = DIMEN_ELEMENT; | |
1225 | expr->ref->u.ar.start[0] = gfc_lval_expr_from_sym (idx2); | |
1011502b | 1226 | expr->where = sizes->declared_at; |
6838c137 TB |
1227 | |
1228 | expr = gfc_build_intrinsic_call (sub_ns, GFC_ISYM_MOD, "mod", | |
1229 | gfc_current_locus, 2, | |
1230 | gfc_lval_expr_from_sym (idx), expr); | |
9e04287b TB |
1231 | expr->ts = idx->ts; |
1232 | ||
1233 | /* (...) / sizes(idx2-1). */ | |
1234 | expr2 = gfc_get_expr (); | |
1235 | expr2->expr_type = EXPR_OP; | |
1236 | expr2->value.op.op = INTRINSIC_DIVIDE; | |
1237 | expr2->value.op.op1 = expr; | |
1238 | expr2->value.op.op2 = gfc_lval_expr_from_sym (sizes); | |
1239 | expr2->value.op.op2->ref = gfc_get_ref (); | |
1240 | expr2->value.op.op2->ref->type = REF_ARRAY; | |
1241 | expr2->value.op.op2->ref->u.ar.as = sizes->as; | |
1242 | expr2->value.op.op2->ref->u.ar.type = AR_ELEMENT; | |
1243 | expr2->value.op.op2->ref->u.ar.dimen = 1; | |
1244 | expr2->value.op.op2->ref->u.ar.dimen_type[0] = DIMEN_ELEMENT; | |
1245 | expr2->value.op.op2->ref->u.ar.start[0] = gfc_get_expr (); | |
1246 | expr2->value.op.op2->ref->u.ar.start[0]->expr_type = EXPR_OP; | |
1011502b | 1247 | expr2->value.op.op2->ref->u.ar.start[0]->where = gfc_current_locus; |
9e04287b TB |
1248 | expr2->value.op.op2->ref->u.ar.start[0]->value.op.op = INTRINSIC_MINUS; |
1249 | expr2->value.op.op2->ref->u.ar.start[0]->value.op.op1 | |
1250 | = gfc_lval_expr_from_sym (idx2); | |
1251 | expr2->value.op.op2->ref->u.ar.start[0]->value.op.op2 | |
1252 | = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
1253 | expr2->value.op.op2->ref->u.ar.start[0]->ts | |
1254 | = expr2->value.op.op2->ref->u.ar.start[0]->value.op.op1->ts; | |
1255 | expr2->ts = idx->ts; | |
1011502b | 1256 | expr2->where = gfc_current_locus; |
9e04287b TB |
1257 | |
1258 | /* ... * strides(idx2). */ | |
1259 | expr = gfc_get_expr (); | |
1260 | expr->expr_type = EXPR_OP; | |
1261 | expr->value.op.op = INTRINSIC_TIMES; | |
1262 | expr->value.op.op1 = expr2; | |
1263 | expr->value.op.op2 = gfc_lval_expr_from_sym (strides); | |
1264 | expr->value.op.op2->ref = gfc_get_ref (); | |
1265 | expr->value.op.op2->ref->type = REF_ARRAY; | |
1266 | expr->value.op.op2->ref->u.ar.type = AR_ELEMENT; | |
1267 | expr->value.op.op2->ref->u.ar.dimen = 1; | |
1268 | expr->value.op.op2->ref->u.ar.dimen_type[0] = DIMEN_ELEMENT; | |
1269 | expr->value.op.op2->ref->u.ar.start[0] = gfc_lval_expr_from_sym (idx2); | |
1270 | expr->value.op.op2->ref->u.ar.as = strides->as; | |
1271 | expr->ts = idx->ts; | |
1011502b | 1272 | expr->where = gfc_current_locus; |
9e04287b TB |
1273 | |
1274 | /* offset = offset + ... */ | |
11e5274a | 1275 | block->block->next = gfc_get_code (EXEC_ASSIGN); |
9e04287b TB |
1276 | block->block->next->expr1 = gfc_lval_expr_from_sym (offset); |
1277 | block->block->next->expr2 = gfc_get_expr (); | |
1278 | block->block->next->expr2->expr_type = EXPR_OP; | |
1279 | block->block->next->expr2->value.op.op = INTRINSIC_PLUS; | |
1280 | block->block->next->expr2->value.op.op1 = gfc_lval_expr_from_sym (offset); | |
1281 | block->block->next->expr2->value.op.op2 = expr; | |
1282 | block->block->next->expr2->ts = idx->ts; | |
1011502b | 1283 | block->block->next->expr2->where = gfc_current_locus; |
9e04287b TB |
1284 | |
1285 | /* After the loop: offset = offset * byte_stride. */ | |
11e5274a | 1286 | block->next = gfc_get_code (EXEC_ASSIGN); |
9e04287b | 1287 | block = block->next; |
9e04287b TB |
1288 | block->expr1 = gfc_lval_expr_from_sym (offset); |
1289 | block->expr2 = gfc_get_expr (); | |
1290 | block->expr2->expr_type = EXPR_OP; | |
1291 | block->expr2->value.op.op = INTRINSIC_TIMES; | |
1292 | block->expr2->value.op.op1 = gfc_lval_expr_from_sym (offset); | |
1293 | block->expr2->value.op.op2 = gfc_lval_expr_from_sym (byte_stride); | |
1294 | block->expr2->ts = block->expr2->value.op.op1->ts; | |
1011502b | 1295 | block->expr2->where = gfc_current_locus; |
9e04287b TB |
1296 | return block; |
1297 | } | |
1298 | ||
1299 | ||
29a7d776 TB |
1300 | /* Insert code of the following form: |
1301 | ||
9e04287b TB |
1302 | block |
1303 | integer(c_intptr_t) :: i | |
1304 | ||
1305 | if ((byte_stride == STORAGE_SIZE (array)/NUMERIC_STORAGE_SIZE | |
1306 | && (is_contiguous || !final_rank3->attr.contiguous | |
1307 | || final_rank3->as->type != AS_ASSUMED_SHAPE)) | |
1308 | || 0 == STORAGE_SIZE (array)) then | |
1309 | call final_rank3 (array) | |
1310 | else | |
1311 | block | |
1312 | integer(c_intptr_t) :: offset, j | |
1313 | type(t) :: tmp(shape (array)) | |
1314 | ||
1315 | do i = 0, size (array)-1 | |
1316 | offset = obtain_offset(i, strides, sizes, byte_stride) | |
1317 | addr = transfer (c_loc (array), addr) + offset | |
1318 | call c_f_pointer (transfer (addr, cptr), ptr) | |
1319 | ||
1320 | addr = transfer (c_loc (tmp), addr) | |
1321 | + i * STORAGE_SIZE (array)/NUMERIC_STORAGE_SIZE | |
1322 | call c_f_pointer (transfer (addr, cptr), ptr2) | |
1323 | ptr2 = ptr | |
1324 | end do | |
1325 | call final_rank3 (tmp) | |
1326 | end block | |
1327 | end if | |
1328 | block */ | |
29a7d776 TB |
1329 | |
1330 | static void | |
1331 | finalizer_insert_packed_call (gfc_code *block, gfc_finalizer *fini, | |
9e04287b | 1332 | gfc_symbol *array, gfc_symbol *byte_stride, |
29a7d776 | 1333 | gfc_symbol *idx, gfc_symbol *ptr, |
6838c137 | 1334 | gfc_symbol *nelem, |
9e04287b TB |
1335 | gfc_symbol *strides, gfc_symbol *sizes, |
1336 | gfc_symbol *idx2, gfc_symbol *offset, | |
1337 | gfc_symbol *is_contiguous, gfc_expr *rank, | |
29a7d776 TB |
1338 | gfc_namespace *sub_ns) |
1339 | { | |
1340 | gfc_symbol *tmp_array, *ptr2; | |
9e04287b | 1341 | gfc_expr *size_expr, *offset2, *expr; |
29a7d776 TB |
1342 | gfc_namespace *ns; |
1343 | gfc_iterator *iter; | |
9e04287b | 1344 | gfc_code *block2; |
29a7d776 TB |
1345 | int i; |
1346 | ||
11e5274a | 1347 | block->next = gfc_get_code (EXEC_IF); |
29a7d776 | 1348 | block = block->next; |
29a7d776 | 1349 | |
11e5274a | 1350 | block->block = gfc_get_code (EXEC_IF); |
29a7d776 | 1351 | block = block->block; |
29a7d776 TB |
1352 | |
1353 | /* size_expr = STORAGE_SIZE (...) / NUMERIC_STORAGE_SIZE. */ | |
1354 | size_expr = gfc_get_expr (); | |
1355 | size_expr->where = gfc_current_locus; | |
1356 | size_expr->expr_type = EXPR_OP; | |
1357 | size_expr->value.op.op = INTRINSIC_DIVIDE; | |
1358 | ||
1359 | /* STORAGE_SIZE (array,kind=c_intptr_t). */ | |
6838c137 TB |
1360 | size_expr->value.op.op1 |
1361 | = gfc_build_intrinsic_call (sub_ns, GFC_ISYM_STORAGE_SIZE, | |
1362 | "storage_size", gfc_current_locus, 2, | |
cbde6c0f | 1363 | gfc_lval_expr_from_sym (array), |
6838c137 | 1364 | gfc_get_int_expr (gfc_index_integer_kind, |
cbde6c0f | 1365 | NULL, 0)); |
29a7d776 TB |
1366 | |
1367 | /* NUMERIC_STORAGE_SIZE. */ | |
1368 | size_expr->value.op.op2 = gfc_get_int_expr (gfc_index_integer_kind, NULL, | |
1369 | gfc_character_storage_size); | |
1370 | size_expr->value.op.op1->ts = size_expr->value.op.op2->ts; | |
1371 | size_expr->ts = size_expr->value.op.op1->ts; | |
1372 | ||
9e04287b TB |
1373 | /* IF condition: (stride == size_expr |
1374 | && ((fini's as->ASSUMED_SIZE && !fini's attr.contiguous) | |
1375 | || is_contiguous) | |
1376 | || 0 == size_expr. */ | |
29a7d776 | 1377 | block->expr1 = gfc_get_expr (); |
29a7d776 | 1378 | block->expr1->ts.type = BT_LOGICAL; |
9e04287b | 1379 | block->expr1->ts.kind = gfc_default_logical_kind; |
29a7d776 TB |
1380 | block->expr1->expr_type = EXPR_OP; |
1381 | block->expr1->where = gfc_current_locus; | |
1382 | ||
1383 | block->expr1->value.op.op = INTRINSIC_OR; | |
1384 | ||
9e04287b TB |
1385 | /* byte_stride == size_expr */ |
1386 | expr = gfc_get_expr (); | |
1387 | expr->ts.type = BT_LOGICAL; | |
1388 | expr->ts.kind = gfc_default_logical_kind; | |
1389 | expr->expr_type = EXPR_OP; | |
1390 | expr->where = gfc_current_locus; | |
1391 | expr->value.op.op = INTRINSIC_EQ; | |
1392 | expr->value.op.op1 | |
1393 | = gfc_lval_expr_from_sym (byte_stride); | |
1394 | expr->value.op.op2 = size_expr; | |
1395 | ||
cbde6c0f | 1396 | /* If strides aren't allowed (not assumed shape or CONTIGUOUS), |
9e04287b | 1397 | add is_contiguous check. */ |
cbde6c0f | 1398 | |
9e04287b TB |
1399 | if (fini->proc_tree->n.sym->formal->sym->as->type != AS_ASSUMED_SHAPE |
1400 | || fini->proc_tree->n.sym->formal->sym->attr.contiguous) | |
1401 | { | |
1402 | gfc_expr *expr2; | |
1403 | expr2 = gfc_get_expr (); | |
1404 | expr2->ts.type = BT_LOGICAL; | |
1405 | expr2->ts.kind = gfc_default_logical_kind; | |
1406 | expr2->expr_type = EXPR_OP; | |
1407 | expr2->where = gfc_current_locus; | |
1408 | expr2->value.op.op = INTRINSIC_AND; | |
1409 | expr2->value.op.op1 = expr; | |
1410 | expr2->value.op.op2 = gfc_lval_expr_from_sym (is_contiguous); | |
1411 | expr = expr2; | |
1412 | } | |
1413 | ||
1414 | block->expr1->value.op.op1 = expr; | |
29a7d776 TB |
1415 | |
1416 | /* 0 == size_expr */ | |
1417 | block->expr1->value.op.op2 = gfc_get_expr (); | |
29a7d776 | 1418 | block->expr1->value.op.op2->ts.type = BT_LOGICAL; |
9e04287b | 1419 | block->expr1->value.op.op2->ts.kind = gfc_default_logical_kind; |
29a7d776 TB |
1420 | block->expr1->value.op.op2->expr_type = EXPR_OP; |
1421 | block->expr1->value.op.op2->where = gfc_current_locus; | |
1422 | block->expr1->value.op.op2->value.op.op = INTRINSIC_EQ; | |
1423 | block->expr1->value.op.op2->value.op.op1 = | |
1424 | gfc_get_int_expr (gfc_index_integer_kind, NULL, 0); | |
1425 | block->expr1->value.op.op2->value.op.op2 = gfc_copy_expr (size_expr); | |
1426 | ||
1427 | /* IF body: call final subroutine. */ | |
11e5274a | 1428 | block->next = gfc_get_code (EXEC_CALL); |
29a7d776 TB |
1429 | block->next->symtree = fini->proc_tree; |
1430 | block->next->resolved_sym = fini->proc_tree->n.sym; | |
1431 | block->next->ext.actual = gfc_get_actual_arglist (); | |
1432 | block->next->ext.actual->expr = gfc_lval_expr_from_sym (array); | |
bf9f15ee PT |
1433 | block->next->ext.actual->next = gfc_get_actual_arglist (); |
1434 | block->next->ext.actual->next->expr = gfc_copy_expr (size_expr); | |
29a7d776 TB |
1435 | |
1436 | /* ELSE. */ | |
1437 | ||
11e5274a | 1438 | block->block = gfc_get_code (EXEC_IF); |
29a7d776 | 1439 | block = block->block; |
29a7d776 | 1440 | |
11e5274a JW |
1441 | /* BLOCK ... END BLOCK. */ |
1442 | block->next = gfc_get_code (EXEC_BLOCK); | |
29a7d776 TB |
1443 | block = block->next; |
1444 | ||
29a7d776 TB |
1445 | ns = gfc_build_block_ns (sub_ns); |
1446 | block->ext.block.ns = ns; | |
1447 | block->ext.block.assoc = NULL; | |
1448 | ||
1449 | gfc_get_symbol ("ptr2", ns, &ptr2); | |
1450 | ptr2->ts.type = BT_DERIVED; | |
1451 | ptr2->ts.u.derived = array->ts.u.derived; | |
1452 | ptr2->attr.flavor = FL_VARIABLE; | |
1453 | ptr2->attr.pointer = 1; | |
1454 | ptr2->attr.artificial = 1; | |
1455 | gfc_set_sym_referenced (ptr2); | |
1456 | gfc_commit_symbol (ptr2); | |
1457 | ||
1458 | gfc_get_symbol ("tmp_array", ns, &tmp_array); | |
1459 | tmp_array->ts.type = BT_DERIVED; | |
1460 | tmp_array->ts.u.derived = array->ts.u.derived; | |
1461 | tmp_array->attr.flavor = FL_VARIABLE; | |
29a7d776 TB |
1462 | tmp_array->attr.dimension = 1; |
1463 | tmp_array->attr.artificial = 1; | |
1464 | tmp_array->as = gfc_get_array_spec(); | |
1465 | tmp_array->attr.intent = INTENT_INOUT; | |
1466 | tmp_array->as->type = AS_EXPLICIT; | |
1467 | tmp_array->as->rank = fini->proc_tree->n.sym->formal->sym->as->rank; | |
1468 | ||
1469 | for (i = 0; i < tmp_array->as->rank; i++) | |
1470 | { | |
1471 | gfc_expr *shape_expr; | |
1472 | tmp_array->as->lower[i] = gfc_get_int_expr (gfc_default_integer_kind, | |
1473 | NULL, 1); | |
cbde6c0f | 1474 | /* SIZE (array, dim=i+1, kind=gfc_index_integer_kind). */ |
6838c137 TB |
1475 | shape_expr |
1476 | = gfc_build_intrinsic_call (sub_ns, GFC_ISYM_SIZE, "size", | |
1477 | gfc_current_locus, 3, | |
1478 | gfc_lval_expr_from_sym (array), | |
1479 | gfc_get_int_expr (gfc_default_integer_kind, | |
1480 | NULL, i+1), | |
1481 | gfc_get_int_expr (gfc_default_integer_kind, | |
cbde6c0f TB |
1482 | NULL, |
1483 | gfc_index_integer_kind)); | |
1484 | shape_expr->ts.kind = gfc_index_integer_kind; | |
29a7d776 TB |
1485 | tmp_array->as->upper[i] = shape_expr; |
1486 | } | |
1487 | gfc_set_sym_referenced (tmp_array); | |
1488 | gfc_commit_symbol (tmp_array); | |
1489 | ||
1490 | /* Create loop. */ | |
1491 | iter = gfc_get_iterator (); | |
1492 | iter->var = gfc_lval_expr_from_sym (idx); | |
1493 | iter->start = gfc_get_int_expr (gfc_index_integer_kind, NULL, 0); | |
1494 | iter->end = gfc_lval_expr_from_sym (nelem); | |
1495 | iter->step = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
1496 | ||
11e5274a | 1497 | block = gfc_get_code (EXEC_DO); |
29a7d776 | 1498 | ns->code = block; |
29a7d776 | 1499 | block->ext.iterator = iter; |
11e5274a | 1500 | block->block = gfc_get_code (EXEC_DO); |
29a7d776 | 1501 | |
9e04287b TB |
1502 | /* Offset calculation for the new array: idx * size of type (in bytes). */ |
1503 | offset2 = gfc_get_expr (); | |
9e04287b | 1504 | offset2->expr_type = EXPR_OP; |
1011502b | 1505 | offset2->where = gfc_current_locus; |
9e04287b TB |
1506 | offset2->value.op.op = INTRINSIC_TIMES; |
1507 | offset2->value.op.op1 = gfc_lval_expr_from_sym (idx); | |
1508 | offset2->value.op.op2 = gfc_copy_expr (size_expr); | |
1509 | offset2->ts = byte_stride->ts; | |
1510 | ||
1511 | /* Offset calculation of "array". */ | |
1512 | block2 = finalization_get_offset (idx, idx2, offset, strides, sizes, | |
1513 | byte_stride, rank, block->block, sub_ns); | |
1514 | ||
29a7d776 TB |
1515 | /* Create code for |
1516 | CALL C_F_POINTER (TRANSFER (TRANSFER (C_LOC (array, cptr), c_intptr) | |
1517 | + idx * stride, c_ptr), ptr). */ | |
9e04287b TB |
1518 | block2->next = finalization_scalarizer (array, ptr, |
1519 | gfc_lval_expr_from_sym (offset), | |
1520 | sub_ns); | |
1521 | block2 = block2->next; | |
1522 | block2->next = finalization_scalarizer (tmp_array, ptr2, offset2, sub_ns); | |
cbde6c0f | 1523 | block2 = block2->next; |
9e04287b | 1524 | |
29a7d776 | 1525 | /* ptr2 = ptr. */ |
11e5274a | 1526 | block2->next = gfc_get_code (EXEC_ASSIGN); |
cbde6c0f | 1527 | block2 = block2->next; |
cbde6c0f TB |
1528 | block2->expr1 = gfc_lval_expr_from_sym (ptr2); |
1529 | block2->expr2 = gfc_lval_expr_from_sym (ptr); | |
29a7d776 | 1530 | |
1cc0e193 | 1531 | /* Call now the user's final subroutine. */ |
11e5274a | 1532 | block->next = gfc_get_code (EXEC_CALL); |
29a7d776 | 1533 | block = block->next; |
29a7d776 TB |
1534 | block->symtree = fini->proc_tree; |
1535 | block->resolved_sym = fini->proc_tree->n.sym; | |
1536 | block->ext.actual = gfc_get_actual_arglist (); | |
1537 | block->ext.actual->expr = gfc_lval_expr_from_sym (tmp_array); | |
1538 | ||
1539 | if (fini->proc_tree->n.sym->formal->sym->attr.intent == INTENT_IN) | |
1540 | return; | |
1541 | ||
1542 | /* Copy back. */ | |
1543 | ||
1544 | /* Loop. */ | |
1545 | iter = gfc_get_iterator (); | |
1546 | iter->var = gfc_lval_expr_from_sym (idx); | |
1547 | iter->start = gfc_get_int_expr (gfc_index_integer_kind, NULL, 0); | |
1548 | iter->end = gfc_lval_expr_from_sym (nelem); | |
1549 | iter->step = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
1550 | ||
11e5274a | 1551 | block->next = gfc_get_code (EXEC_DO); |
29a7d776 | 1552 | block = block->next; |
29a7d776 | 1553 | block->ext.iterator = iter; |
11e5274a | 1554 | block->block = gfc_get_code (EXEC_DO); |
29a7d776 | 1555 | |
9e04287b TB |
1556 | /* Offset calculation of "array". */ |
1557 | block2 = finalization_get_offset (idx, idx2, offset, strides, sizes, | |
1558 | byte_stride, rank, block->block, sub_ns); | |
1559 | ||
29a7d776 TB |
1560 | /* Create code for |
1561 | CALL C_F_POINTER (TRANSFER (TRANSFER (C_LOC (array, cptr), c_intptr) | |
9e04287b TB |
1562 | + offset, c_ptr), ptr). */ |
1563 | block2->next = finalization_scalarizer (array, ptr, | |
1564 | gfc_lval_expr_from_sym (offset), | |
1565 | sub_ns); | |
1566 | block2 = block2->next; | |
cbde6c0f TB |
1567 | block2->next = finalization_scalarizer (tmp_array, ptr2, |
1568 | gfc_copy_expr (offset2), sub_ns); | |
9e04287b TB |
1569 | block2 = block2->next; |
1570 | ||
29a7d776 | 1571 | /* ptr = ptr2. */ |
11e5274a | 1572 | block2->next = gfc_get_code (EXEC_ASSIGN); |
9e04287b TB |
1573 | block2->next->expr1 = gfc_lval_expr_from_sym (ptr); |
1574 | block2->next->expr2 = gfc_lval_expr_from_sym (ptr2); | |
29a7d776 TB |
1575 | } |
1576 | ||
1577 | ||
8e54f139 TB |
1578 | /* Generate the finalization/polymorphic freeing wrapper subroutine for the |
1579 | derived type "derived". The function first calls the approriate FINAL | |
1580 | subroutine, then it DEALLOCATEs (finalizes/frees) the allocatable | |
1581 | components (but not the inherited ones). Last, it calls the wrapper | |
1582 | subroutine of the parent. The generated wrapper procedure takes as argument | |
1583 | an assumed-rank array. | |
1584 | If neither allocatable components nor FINAL subroutines exists, the vtab | |
29a7d776 TB |
1585 | will contain a NULL pointer. |
1586 | The generated function has the form | |
1587 | _final(assumed-rank array, stride, skip_corarray) | |
1588 | where the array has to be contiguous (except of the lowest dimension). The | |
1589 | stride (in bytes) is used to allow different sizes for ancestor types by | |
1590 | skipping over the additionally added components in the scalarizer. If | |
1591 | "fini_coarray" is false, coarray components are not finalized to allow for | |
1592 | the correct semantic with intrinsic assignment. */ | |
8e54f139 TB |
1593 | |
1594 | static void | |
1595 | generate_finalization_wrapper (gfc_symbol *derived, gfc_namespace *ns, | |
1596 | const char *tname, gfc_component *vtab_final) | |
1597 | { | |
9e04287b TB |
1598 | gfc_symbol *final, *array, *fini_coarray, *byte_stride, *sizes, *strides; |
1599 | gfc_symbol *ptr = NULL, *idx, *idx2, *is_contiguous, *offset, *nelem; | |
8e54f139 TB |
1600 | gfc_component *comp; |
1601 | gfc_namespace *sub_ns; | |
9e04287b | 1602 | gfc_code *last_code, *block; |
2004617a | 1603 | char *name; |
8e54f139 | 1604 | bool finalizable_comp = false; |
9e04287b TB |
1605 | gfc_expr *ancestor_wrapper = NULL, *rank; |
1606 | gfc_iterator *iter; | |
8e54f139 | 1607 | |
7017a7a9 TB |
1608 | if (derived->attr.unlimited_polymorphic) |
1609 | { | |
1610 | vtab_final->initializer = gfc_get_null_expr (NULL); | |
1611 | return; | |
1612 | } | |
1613 | ||
1cc0e193 | 1614 | /* Search for the ancestor's finalizers. */ |
8e54f139 TB |
1615 | if (derived->attr.extension && derived->components |
1616 | && (!derived->components->ts.u.derived->attr.abstract | |
1617 | || has_finalizer_component (derived))) | |
1618 | { | |
1619 | gfc_symbol *vtab; | |
1620 | gfc_component *comp; | |
1621 | ||
1622 | vtab = gfc_find_derived_vtab (derived->components->ts.u.derived); | |
1623 | for (comp = vtab->ts.u.derived->components; comp; comp = comp->next) | |
1624 | if (comp->name[0] == '_' && comp->name[1] == 'f') | |
1625 | { | |
1626 | ancestor_wrapper = comp->initializer; | |
1627 | break; | |
1628 | } | |
1629 | } | |
1630 | ||
29a7d776 | 1631 | /* No wrapper of the ancestor and no own FINAL subroutines and allocatable |
d5029d45 | 1632 | components: Return a NULL() expression; we defer this a bit to have |
29a7d776 | 1633 | an interface declaration. */ |
8e54f139 TB |
1634 | if ((!ancestor_wrapper || ancestor_wrapper->expr_type == EXPR_NULL) |
1635 | && !derived->attr.alloc_comp | |
1636 | && (!derived->f2k_derived || !derived->f2k_derived->finalizers) | |
1637 | && !has_finalizer_component (derived)) | |
8875a92d BRF |
1638 | { |
1639 | vtab_final->initializer = gfc_get_null_expr (NULL); | |
1640 | gcc_assert (vtab_final->ts.interface == NULL); | |
1641 | return; | |
1642 | } | |
29a7d776 TB |
1643 | else |
1644 | /* Check whether there are new allocatable components. */ | |
1645 | for (comp = derived->components; comp; comp = comp->next) | |
1646 | { | |
1647 | if (comp == derived->components && derived->attr.extension | |
1648 | && ancestor_wrapper && ancestor_wrapper->expr_type != EXPR_NULL) | |
8e54f139 TB |
1649 | continue; |
1650 | ||
c9d3fa76 | 1651 | finalizable_comp |= comp_is_finalizable (comp); |
29a7d776 | 1652 | } |
8e54f139 TB |
1653 | |
1654 | /* If there is no new finalizer and no new allocatable, return with | |
1655 | an expr to the ancestor's one. */ | |
8875a92d | 1656 | if (!finalizable_comp |
29a7d776 | 1657 | && (!derived->f2k_derived || !derived->f2k_derived->finalizers)) |
8e54f139 | 1658 | { |
29a7d776 TB |
1659 | gcc_assert (ancestor_wrapper && ancestor_wrapper->ref == NULL |
1660 | && ancestor_wrapper->expr_type == EXPR_VARIABLE); | |
8e54f139 | 1661 | vtab_final->initializer = gfc_copy_expr (ancestor_wrapper); |
29a7d776 | 1662 | vtab_final->ts.interface = vtab_final->initializer->symtree->n.sym; |
8e54f139 TB |
1663 | return; |
1664 | } | |
1665 | ||
1666 | /* We now create a wrapper, which does the following: | |
1667 | 1. Call the suitable finalization subroutine for this type | |
1668 | 2. Loop over all noninherited allocatable components and noninherited | |
1669 | components with allocatable components and DEALLOCATE those; this will | |
1670 | take care of finalizers, coarray deregistering and allocatable | |
1671 | nested components. | |
1672 | 3. Call the ancestor's finalizer. */ | |
1673 | ||
1674 | /* Declare the wrapper function; it takes an assumed-rank array | |
1cc0e193 | 1675 | and a VALUE logical as arguments. */ |
8e54f139 TB |
1676 | |
1677 | /* Set up the namespace. */ | |
1678 | sub_ns = gfc_get_namespace (ns, 0); | |
1679 | sub_ns->sibling = ns->contained; | |
8875a92d | 1680 | ns->contained = sub_ns; |
8e54f139 TB |
1681 | sub_ns->resolved = 1; |
1682 | ||
1683 | /* Set up the procedure symbol. */ | |
2004617a | 1684 | name = xasprintf ("__final_%s", tname); |
8e54f139 TB |
1685 | gfc_get_symbol (name, sub_ns, &final); |
1686 | sub_ns->proc_name = final; | |
1687 | final->attr.flavor = FL_PROCEDURE; | |
29a7d776 TB |
1688 | final->attr.function = 1; |
1689 | final->attr.pure = 0; | |
43076492 | 1690 | final->attr.recursive = 1; |
29a7d776 TB |
1691 | final->result = final; |
1692 | final->ts.type = BT_INTEGER; | |
1693 | final->ts.kind = 4; | |
8e54f139 | 1694 | final->attr.artificial = 1; |
2ab320ad | 1695 | final->attr.always_explicit = 1; |
8875a92d | 1696 | final->attr.if_source = IFSRC_DECL; |
8e54f139 TB |
1697 | if (ns->proc_name->attr.flavor == FL_MODULE) |
1698 | final->module = ns->proc_name->name; | |
1699 | gfc_set_sym_referenced (final); | |
29a7d776 | 1700 | gfc_commit_symbol (final); |
8e54f139 TB |
1701 | |
1702 | /* Set up formal argument. */ | |
1703 | gfc_get_symbol ("array", sub_ns, &array); | |
1704 | array->ts.type = BT_DERIVED; | |
1705 | array->ts.u.derived = derived; | |
1706 | array->attr.flavor = FL_VARIABLE; | |
1707 | array->attr.dummy = 1; | |
1708 | array->attr.contiguous = 1; | |
1709 | array->attr.dimension = 1; | |
1710 | array->attr.artificial = 1; | |
1711 | array->as = gfc_get_array_spec(); | |
1712 | array->as->type = AS_ASSUMED_RANK; | |
1713 | array->as->rank = -1; | |
1714 | array->attr.intent = INTENT_INOUT; | |
1715 | gfc_set_sym_referenced (array); | |
1716 | final->formal = gfc_get_formal_arglist (); | |
1717 | final->formal->sym = array; | |
1718 | gfc_commit_symbol (array); | |
1719 | ||
29a7d776 | 1720 | /* Set up formal argument. */ |
9e04287b TB |
1721 | gfc_get_symbol ("byte_stride", sub_ns, &byte_stride); |
1722 | byte_stride->ts.type = BT_INTEGER; | |
1723 | byte_stride->ts.kind = gfc_index_integer_kind; | |
1724 | byte_stride->attr.flavor = FL_VARIABLE; | |
1725 | byte_stride->attr.dummy = 1; | |
1726 | byte_stride->attr.value = 1; | |
1727 | byte_stride->attr.artificial = 1; | |
1728 | gfc_set_sym_referenced (byte_stride); | |
29a7d776 | 1729 | final->formal->next = gfc_get_formal_arglist (); |
9e04287b TB |
1730 | final->formal->next->sym = byte_stride; |
1731 | gfc_commit_symbol (byte_stride); | |
29a7d776 TB |
1732 | |
1733 | /* Set up formal argument. */ | |
1734 | gfc_get_symbol ("fini_coarray", sub_ns, &fini_coarray); | |
1735 | fini_coarray->ts.type = BT_LOGICAL; | |
9e04287b | 1736 | fini_coarray->ts.kind = 1; |
29a7d776 TB |
1737 | fini_coarray->attr.flavor = FL_VARIABLE; |
1738 | fini_coarray->attr.dummy = 1; | |
1739 | fini_coarray->attr.value = 1; | |
1740 | fini_coarray->attr.artificial = 1; | |
1741 | gfc_set_sym_referenced (fini_coarray); | |
1742 | final->formal->next->next = gfc_get_formal_arglist (); | |
1743 | final->formal->next->next->sym = fini_coarray; | |
1744 | gfc_commit_symbol (fini_coarray); | |
1745 | ||
9e04287b TB |
1746 | /* Local variables. */ |
1747 | ||
1748 | gfc_get_symbol ("idx", sub_ns, &idx); | |
1749 | idx->ts.type = BT_INTEGER; | |
1750 | idx->ts.kind = gfc_index_integer_kind; | |
1751 | idx->attr.flavor = FL_VARIABLE; | |
1752 | idx->attr.artificial = 1; | |
1753 | gfc_set_sym_referenced (idx); | |
1754 | gfc_commit_symbol (idx); | |
1755 | ||
1756 | gfc_get_symbol ("idx2", sub_ns, &idx2); | |
1757 | idx2->ts.type = BT_INTEGER; | |
1758 | idx2->ts.kind = gfc_index_integer_kind; | |
1759 | idx2->attr.flavor = FL_VARIABLE; | |
1760 | idx2->attr.artificial = 1; | |
1761 | gfc_set_sym_referenced (idx2); | |
1762 | gfc_commit_symbol (idx2); | |
1763 | ||
1764 | gfc_get_symbol ("offset", sub_ns, &offset); | |
1765 | offset->ts.type = BT_INTEGER; | |
1766 | offset->ts.kind = gfc_index_integer_kind; | |
1767 | offset->attr.flavor = FL_VARIABLE; | |
1768 | offset->attr.artificial = 1; | |
1769 | gfc_set_sym_referenced (offset); | |
1770 | gfc_commit_symbol (offset); | |
1771 | ||
1772 | /* Create RANK expression. */ | |
6838c137 TB |
1773 | rank = gfc_build_intrinsic_call (sub_ns, GFC_ISYM_RANK, "rank", |
1774 | gfc_current_locus, 1, | |
1775 | gfc_lval_expr_from_sym (array)); | |
16023efc TB |
1776 | if (rank->ts.kind != idx->ts.kind) |
1777 | gfc_convert_type_warn (rank, &idx->ts, 2, 0); | |
9e04287b TB |
1778 | |
1779 | /* Create is_contiguous variable. */ | |
1780 | gfc_get_symbol ("is_contiguous", sub_ns, &is_contiguous); | |
1781 | is_contiguous->ts.type = BT_LOGICAL; | |
1782 | is_contiguous->ts.kind = gfc_default_logical_kind; | |
1783 | is_contiguous->attr.flavor = FL_VARIABLE; | |
1784 | is_contiguous->attr.artificial = 1; | |
1785 | gfc_set_sym_referenced (is_contiguous); | |
1786 | gfc_commit_symbol (is_contiguous); | |
1787 | ||
1788 | /* Create "sizes(0..rank)" variable, which contains the multiplied | |
1789 | up extent of the dimensions, i.e. sizes(0) = 1, sizes(1) = extent(dim=1), | |
1790 | sizes(2) = sizes(1) * extent(dim=2) etc. */ | |
1791 | gfc_get_symbol ("sizes", sub_ns, &sizes); | |
1792 | sizes->ts.type = BT_INTEGER; | |
1793 | sizes->ts.kind = gfc_index_integer_kind; | |
1794 | sizes->attr.flavor = FL_VARIABLE; | |
1795 | sizes->attr.dimension = 1; | |
1796 | sizes->attr.artificial = 1; | |
1797 | sizes->as = gfc_get_array_spec(); | |
1798 | sizes->attr.intent = INTENT_INOUT; | |
1799 | sizes->as->type = AS_EXPLICIT; | |
1800 | sizes->as->rank = 1; | |
1801 | sizes->as->lower[0] = gfc_get_int_expr (gfc_index_integer_kind, NULL, 0); | |
1802 | sizes->as->upper[0] = gfc_copy_expr (rank); | |
1803 | gfc_set_sym_referenced (sizes); | |
1804 | gfc_commit_symbol (sizes); | |
1805 | ||
1806 | /* Create "strides(1..rank)" variable, which contains the strides per | |
1807 | dimension. */ | |
1808 | gfc_get_symbol ("strides", sub_ns, &strides); | |
1809 | strides->ts.type = BT_INTEGER; | |
1810 | strides->ts.kind = gfc_index_integer_kind; | |
1811 | strides->attr.flavor = FL_VARIABLE; | |
1812 | strides->attr.dimension = 1; | |
1813 | strides->attr.artificial = 1; | |
1814 | strides->as = gfc_get_array_spec(); | |
1815 | strides->attr.intent = INTENT_INOUT; | |
1816 | strides->as->type = AS_EXPLICIT; | |
1817 | strides->as->rank = 1; | |
1818 | strides->as->lower[0] = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
1819 | strides->as->upper[0] = gfc_copy_expr (rank); | |
1820 | gfc_set_sym_referenced (strides); | |
1821 | gfc_commit_symbol (strides); | |
1822 | ||
29a7d776 TB |
1823 | |
1824 | /* Set return value to 0. */ | |
11e5274a | 1825 | last_code = gfc_get_code (EXEC_ASSIGN); |
29a7d776 TB |
1826 | last_code->expr1 = gfc_lval_expr_from_sym (final); |
1827 | last_code->expr2 = gfc_get_int_expr (4, NULL, 0); | |
1828 | sub_ns->code = last_code; | |
1829 | ||
9e04287b | 1830 | /* Set: is_contiguous = .true. */ |
11e5274a | 1831 | last_code->next = gfc_get_code (EXEC_ASSIGN); |
9e04287b | 1832 | last_code = last_code->next; |
9e04287b TB |
1833 | last_code->expr1 = gfc_lval_expr_from_sym (is_contiguous); |
1834 | last_code->expr2 = gfc_get_logical_expr (gfc_default_logical_kind, | |
1835 | &gfc_current_locus, true); | |
1836 | ||
1837 | /* Set: sizes(0) = 1. */ | |
11e5274a | 1838 | last_code->next = gfc_get_code (EXEC_ASSIGN); |
9e04287b | 1839 | last_code = last_code->next; |
9e04287b TB |
1840 | last_code->expr1 = gfc_lval_expr_from_sym (sizes); |
1841 | last_code->expr1->ref = gfc_get_ref (); | |
1842 | last_code->expr1->ref->type = REF_ARRAY; | |
1843 | last_code->expr1->ref->u.ar.type = AR_ELEMENT; | |
1844 | last_code->expr1->ref->u.ar.dimen = 1; | |
1845 | last_code->expr1->ref->u.ar.dimen_type[0] = DIMEN_ELEMENT; | |
1846 | last_code->expr1->ref->u.ar.start[0] | |
1847 | = gfc_get_int_expr (gfc_index_integer_kind, NULL, 0); | |
1848 | last_code->expr1->ref->u.ar.as = sizes->as; | |
1849 | last_code->expr2 = gfc_get_int_expr (gfc_default_integer_kind, NULL, 1); | |
1850 | ||
1851 | /* Create: | |
1852 | DO idx = 1, rank | |
1853 | strides(idx) = _F._stride (array, dim=idx) | |
1854 | sizes(idx) = sizes(i-1) * size(array, dim=idx, kind=index_kind) | |
524af0d6 | 1855 | if (strides (idx) /= sizes(i-1)) is_contiguous = .false. |
9e04287b TB |
1856 | END DO. */ |
1857 | ||
1858 | /* Create loop. */ | |
1859 | iter = gfc_get_iterator (); | |
1860 | iter->var = gfc_lval_expr_from_sym (idx); | |
1861 | iter->start = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
1862 | iter->end = gfc_copy_expr (rank); | |
1863 | iter->step = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
11e5274a | 1864 | last_code->next = gfc_get_code (EXEC_DO); |
9e04287b | 1865 | last_code = last_code->next; |
9e04287b | 1866 | last_code->ext.iterator = iter; |
11e5274a | 1867 | last_code->block = gfc_get_code (EXEC_DO); |
9e04287b | 1868 | |
1cc0e193 | 1869 | /* strides(idx) = _F._stride(array,dim=idx). */ |
11e5274a | 1870 | last_code->block->next = gfc_get_code (EXEC_ASSIGN); |
9e04287b | 1871 | block = last_code->block->next; |
9e04287b TB |
1872 | |
1873 | block->expr1 = gfc_lval_expr_from_sym (strides); | |
1874 | block->expr1->ref = gfc_get_ref (); | |
1875 | block->expr1->ref->type = REF_ARRAY; | |
1876 | block->expr1->ref->u.ar.type = AR_ELEMENT; | |
1877 | block->expr1->ref->u.ar.dimen = 1; | |
1878 | block->expr1->ref->u.ar.dimen_type[0] = DIMEN_ELEMENT; | |
1879 | block->expr1->ref->u.ar.start[0] = gfc_lval_expr_from_sym (idx); | |
1880 | block->expr1->ref->u.ar.as = strides->as; | |
1881 | ||
6838c137 TB |
1882 | block->expr2 = gfc_build_intrinsic_call (sub_ns, GFC_ISYM_STRIDE, "stride", |
1883 | gfc_current_locus, 2, | |
1884 | gfc_lval_expr_from_sym (array), | |
1885 | gfc_lval_expr_from_sym (idx)); | |
9e04287b | 1886 | |
1cc0e193 | 1887 | /* sizes(idx) = sizes(idx-1) * size(array,dim=idx, kind=index_kind). */ |
11e5274a | 1888 | block->next = gfc_get_code (EXEC_ASSIGN); |
9e04287b | 1889 | block = block->next; |
9e04287b | 1890 | |
1cc0e193 | 1891 | /* sizes(idx) = ... */ |
9e04287b TB |
1892 | block->expr1 = gfc_lval_expr_from_sym (sizes); |
1893 | block->expr1->ref = gfc_get_ref (); | |
1894 | block->expr1->ref->type = REF_ARRAY; | |
1895 | block->expr1->ref->u.ar.type = AR_ELEMENT; | |
1896 | block->expr1->ref->u.ar.dimen = 1; | |
1897 | block->expr1->ref->u.ar.dimen_type[0] = DIMEN_ELEMENT; | |
1898 | block->expr1->ref->u.ar.start[0] = gfc_lval_expr_from_sym (idx); | |
1899 | block->expr1->ref->u.ar.as = sizes->as; | |
1900 | ||
1901 | block->expr2 = gfc_get_expr (); | |
1902 | block->expr2->expr_type = EXPR_OP; | |
1903 | block->expr2->value.op.op = INTRINSIC_TIMES; | |
1011502b | 1904 | block->expr2->where = gfc_current_locus; |
9e04287b | 1905 | |
1cc0e193 | 1906 | /* sizes(idx-1). */ |
9e04287b TB |
1907 | block->expr2->value.op.op1 = gfc_lval_expr_from_sym (sizes); |
1908 | block->expr2->value.op.op1->ref = gfc_get_ref (); | |
1909 | block->expr2->value.op.op1->ref->type = REF_ARRAY; | |
1910 | block->expr2->value.op.op1->ref->u.ar.as = sizes->as; | |
1911 | block->expr2->value.op.op1->ref->u.ar.type = AR_ELEMENT; | |
1912 | block->expr2->value.op.op1->ref->u.ar.dimen = 1; | |
1913 | block->expr2->value.op.op1->ref->u.ar.dimen_type[0] = DIMEN_ELEMENT; | |
1914 | block->expr2->value.op.op1->ref->u.ar.start[0] = gfc_get_expr (); | |
1915 | block->expr2->value.op.op1->ref->u.ar.start[0]->expr_type = EXPR_OP; | |
1011502b | 1916 | block->expr2->value.op.op1->ref->u.ar.start[0]->where = gfc_current_locus; |
9e04287b TB |
1917 | block->expr2->value.op.op1->ref->u.ar.start[0]->value.op.op = INTRINSIC_MINUS; |
1918 | block->expr2->value.op.op1->ref->u.ar.start[0]->value.op.op1 | |
1919 | = gfc_lval_expr_from_sym (idx); | |
1920 | block->expr2->value.op.op1->ref->u.ar.start[0]->value.op.op2 | |
1921 | = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
1922 | block->expr2->value.op.op1->ref->u.ar.start[0]->ts | |
1923 | = block->expr2->value.op.op1->ref->u.ar.start[0]->value.op.op1->ts; | |
1924 | ||
1925 | /* size(array, dim=idx, kind=index_kind). */ | |
6838c137 TB |
1926 | block->expr2->value.op.op2 |
1927 | = gfc_build_intrinsic_call (sub_ns, GFC_ISYM_SIZE, "size", | |
1928 | gfc_current_locus, 3, | |
1929 | gfc_lval_expr_from_sym (array), | |
1930 | gfc_lval_expr_from_sym (idx), | |
1931 | gfc_get_int_expr (gfc_index_integer_kind, | |
cbde6c0f TB |
1932 | NULL, |
1933 | gfc_index_integer_kind)); | |
1934 | block->expr2->value.op.op2->ts.kind = gfc_index_integer_kind; | |
9e04287b TB |
1935 | block->expr2->ts = idx->ts; |
1936 | ||
524af0d6 | 1937 | /* if (strides (idx) /= sizes(idx-1)) is_contiguous = .false. */ |
11e5274a | 1938 | block->next = gfc_get_code (EXEC_IF); |
9e04287b | 1939 | block = block->next; |
9e04287b | 1940 | |
11e5274a | 1941 | block->block = gfc_get_code (EXEC_IF); |
9e04287b | 1942 | block = block->block; |
9e04287b TB |
1943 | |
1944 | /* if condition: strides(idx) /= sizes(idx-1). */ | |
1945 | block->expr1 = gfc_get_expr (); | |
1946 | block->expr1->ts.type = BT_LOGICAL; | |
1947 | block->expr1->ts.kind = gfc_default_logical_kind; | |
1948 | block->expr1->expr_type = EXPR_OP; | |
1949 | block->expr1->where = gfc_current_locus; | |
1950 | block->expr1->value.op.op = INTRINSIC_NE; | |
1951 | ||
1952 | block->expr1->value.op.op1 = gfc_lval_expr_from_sym (strides); | |
1953 | block->expr1->value.op.op1->ref = gfc_get_ref (); | |
1954 | block->expr1->value.op.op1->ref->type = REF_ARRAY; | |
1955 | block->expr1->value.op.op1->ref->u.ar.type = AR_ELEMENT; | |
1956 | block->expr1->value.op.op1->ref->u.ar.dimen = 1; | |
1957 | block->expr1->value.op.op1->ref->u.ar.dimen_type[0] = DIMEN_ELEMENT; | |
1958 | block->expr1->value.op.op1->ref->u.ar.start[0] = gfc_lval_expr_from_sym (idx); | |
1959 | block->expr1->value.op.op1->ref->u.ar.as = strides->as; | |
1960 | ||
1961 | block->expr1->value.op.op2 = gfc_lval_expr_from_sym (sizes); | |
1962 | block->expr1->value.op.op2->ref = gfc_get_ref (); | |
1963 | block->expr1->value.op.op2->ref->type = REF_ARRAY; | |
1964 | block->expr1->value.op.op2->ref->u.ar.as = sizes->as; | |
1965 | block->expr1->value.op.op2->ref->u.ar.type = AR_ELEMENT; | |
1966 | block->expr1->value.op.op2->ref->u.ar.dimen = 1; | |
1967 | block->expr1->value.op.op2->ref->u.ar.dimen_type[0] = DIMEN_ELEMENT; | |
1968 | block->expr1->value.op.op2->ref->u.ar.start[0] = gfc_get_expr (); | |
1969 | block->expr1->value.op.op2->ref->u.ar.start[0]->expr_type = EXPR_OP; | |
1011502b | 1970 | block->expr1->value.op.op2->ref->u.ar.start[0]->where = gfc_current_locus; |
9e04287b TB |
1971 | block->expr1->value.op.op2->ref->u.ar.start[0]->value.op.op = INTRINSIC_MINUS; |
1972 | block->expr1->value.op.op2->ref->u.ar.start[0]->value.op.op1 | |
1973 | = gfc_lval_expr_from_sym (idx); | |
1974 | block->expr1->value.op.op2->ref->u.ar.start[0]->value.op.op2 | |
1975 | = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
1976 | block->expr1->value.op.op2->ref->u.ar.start[0]->ts | |
1977 | = block->expr1->value.op.op2->ref->u.ar.start[0]->value.op.op1->ts; | |
1978 | ||
1979 | /* if body: is_contiguous = .false. */ | |
11e5274a | 1980 | block->next = gfc_get_code (EXEC_ASSIGN); |
9e04287b | 1981 | block = block->next; |
9e04287b TB |
1982 | block->expr1 = gfc_lval_expr_from_sym (is_contiguous); |
1983 | block->expr2 = gfc_get_logical_expr (gfc_default_logical_kind, | |
1984 | &gfc_current_locus, false); | |
1985 | ||
8e54f139 TB |
1986 | /* Obtain the size (number of elements) of "array" MINUS ONE, |
1987 | which is used in the scalarization. */ | |
1988 | gfc_get_symbol ("nelem", sub_ns, &nelem); | |
1989 | nelem->ts.type = BT_INTEGER; | |
1990 | nelem->ts.kind = gfc_index_integer_kind; | |
1991 | nelem->attr.flavor = FL_VARIABLE; | |
1992 | nelem->attr.artificial = 1; | |
1993 | gfc_set_sym_referenced (nelem); | |
1994 | gfc_commit_symbol (nelem); | |
1995 | ||
9e04287b | 1996 | /* nelem = sizes (rank) - 1. */ |
11e5274a | 1997 | last_code->next = gfc_get_code (EXEC_ASSIGN); |
29a7d776 | 1998 | last_code = last_code->next; |
8e54f139 TB |
1999 | |
2000 | last_code->expr1 = gfc_lval_expr_from_sym (nelem); | |
2001 | ||
2002 | last_code->expr2 = gfc_get_expr (); | |
2003 | last_code->expr2->expr_type = EXPR_OP; | |
2004 | last_code->expr2->value.op.op = INTRINSIC_MINUS; | |
2005 | last_code->expr2->value.op.op2 | |
2006 | = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
2007 | last_code->expr2->ts = last_code->expr2->value.op.op2->ts; | |
1011502b | 2008 | last_code->expr2->where = gfc_current_locus; |
8e54f139 | 2009 | |
9e04287b TB |
2010 | last_code->expr2->value.op.op1 = gfc_lval_expr_from_sym (sizes); |
2011 | last_code->expr2->value.op.op1->ref = gfc_get_ref (); | |
2012 | last_code->expr2->value.op.op1->ref->type = REF_ARRAY; | |
2013 | last_code->expr2->value.op.op1->ref->u.ar.type = AR_ELEMENT; | |
2014 | last_code->expr2->value.op.op1->ref->u.ar.dimen = 1; | |
2015 | last_code->expr2->value.op.op1->ref->u.ar.dimen_type[0] = DIMEN_ELEMENT; | |
2016 | last_code->expr2->value.op.op1->ref->u.ar.start[0] = gfc_copy_expr (rank); | |
2017 | last_code->expr2->value.op.op1->ref->u.ar.as = sizes->as; | |
8e54f139 TB |
2018 | |
2019 | /* Call final subroutines. We now generate code like: | |
2020 | use iso_c_binding | |
2021 | integer, pointer :: ptr | |
2022 | type(c_ptr) :: cptr | |
2023 | integer(c_intptr_t) :: i, addr | |
2024 | ||
2025 | select case (rank (array)) | |
2026 | case (3) | |
29a7d776 | 2027 | ! If needed, the array is packed |
8e54f139 TB |
2028 | call final_rank3 (array) |
2029 | case default: | |
2030 | do i = 0, size (array)-1 | |
29a7d776 | 2031 | addr = transfer (c_loc (array), addr) + i * stride |
8e54f139 TB |
2032 | call c_f_pointer (transfer (addr, cptr), ptr) |
2033 | call elemental_final (ptr) | |
2034 | end do | |
2035 | end select */ | |
2036 | ||
2037 | if (derived->f2k_derived && derived->f2k_derived->finalizers) | |
2038 | { | |
2039 | gfc_finalizer *fini, *fini_elem = NULL; | |
29a7d776 | 2040 | |
807b50a7 | 2041 | gfc_get_symbol ("ptr1", sub_ns, &ptr); |
29a7d776 TB |
2042 | ptr->ts.type = BT_DERIVED; |
2043 | ptr->ts.u.derived = derived; | |
2044 | ptr->attr.flavor = FL_VARIABLE; | |
2045 | ptr->attr.pointer = 1; | |
2046 | ptr->attr.artificial = 1; | |
2047 | gfc_set_sym_referenced (ptr); | |
2048 | gfc_commit_symbol (ptr); | |
2049 | ||
8e54f139 | 2050 | /* SELECT CASE (RANK (array)). */ |
11e5274a | 2051 | last_code->next = gfc_get_code (EXEC_SELECT); |
8e54f139 | 2052 | last_code = last_code->next; |
9e04287b TB |
2053 | last_code->expr1 = gfc_copy_expr (rank); |
2054 | block = NULL; | |
8e54f139 TB |
2055 | |
2056 | for (fini = derived->f2k_derived->finalizers; fini; fini = fini->next) | |
2057 | { | |
a6cd299b | 2058 | gcc_assert (fini->proc_tree); /* Should have been set in gfc_resolve_finalizers. */ |
8e54f139 TB |
2059 | if (fini->proc_tree->n.sym->attr.elemental) |
2060 | { | |
2061 | fini_elem = fini; | |
2062 | continue; | |
2063 | } | |
2064 | ||
2065 | /* CASE (fini_rank). */ | |
2066 | if (block) | |
2067 | { | |
11e5274a | 2068 | block->block = gfc_get_code (EXEC_SELECT); |
8e54f139 TB |
2069 | block = block->block; |
2070 | } | |
2071 | else | |
2072 | { | |
11e5274a | 2073 | block = gfc_get_code (EXEC_SELECT); |
8e54f139 TB |
2074 | last_code->block = block; |
2075 | } | |
8e54f139 TB |
2076 | block->ext.block.case_list = gfc_get_case (); |
2077 | block->ext.block.case_list->where = gfc_current_locus; | |
2078 | if (fini->proc_tree->n.sym->formal->sym->attr.dimension) | |
2079 | block->ext.block.case_list->low | |
2080 | = gfc_get_int_expr (gfc_default_integer_kind, NULL, | |
2081 | fini->proc_tree->n.sym->formal->sym->as->rank); | |
2082 | else | |
2083 | block->ext.block.case_list->low | |
2084 | = gfc_get_int_expr (gfc_default_integer_kind, NULL, 0); | |
2085 | block->ext.block.case_list->high | |
cbde6c0f | 2086 | = gfc_copy_expr (block->ext.block.case_list->low); |
8e54f139 | 2087 | |
29a7d776 TB |
2088 | /* CALL fini_rank (array) - possibly with packing. */ |
2089 | if (fini->proc_tree->n.sym->formal->sym->attr.dimension) | |
9e04287b | 2090 | finalizer_insert_packed_call (block, fini, array, byte_stride, |
6838c137 | 2091 | idx, ptr, nelem, strides, |
9e04287b TB |
2092 | sizes, idx2, offset, is_contiguous, |
2093 | rank, sub_ns); | |
29a7d776 TB |
2094 | else |
2095 | { | |
11e5274a | 2096 | block->next = gfc_get_code (EXEC_CALL); |
29a7d776 TB |
2097 | block->next->symtree = fini->proc_tree; |
2098 | block->next->resolved_sym = fini->proc_tree->n.sym; | |
2099 | block->next->ext.actual = gfc_get_actual_arglist (); | |
2100 | block->next->ext.actual->expr = gfc_lval_expr_from_sym (array); | |
2101 | } | |
8e54f139 TB |
2102 | } |
2103 | ||
2104 | /* Elemental call - scalarized. */ | |
2105 | if (fini_elem) | |
2106 | { | |
8e54f139 TB |
2107 | /* CASE DEFAULT. */ |
2108 | if (block) | |
2109 | { | |
11e5274a | 2110 | block->block = gfc_get_code (EXEC_SELECT); |
8e54f139 TB |
2111 | block = block->block; |
2112 | } | |
2113 | else | |
2114 | { | |
11e5274a | 2115 | block = gfc_get_code (EXEC_SELECT); |
8e54f139 TB |
2116 | last_code->block = block; |
2117 | } | |
8e54f139 TB |
2118 | block->ext.block.case_list = gfc_get_case (); |
2119 | ||
8e54f139 TB |
2120 | /* Create loop. */ |
2121 | iter = gfc_get_iterator (); | |
2122 | iter->var = gfc_lval_expr_from_sym (idx); | |
2123 | iter->start = gfc_get_int_expr (gfc_index_integer_kind, NULL, 0); | |
2124 | iter->end = gfc_lval_expr_from_sym (nelem); | |
2125 | iter->step = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
11e5274a | 2126 | block->next = gfc_get_code (EXEC_DO); |
8e54f139 | 2127 | block = block->next; |
8e54f139 | 2128 | block->ext.iterator = iter; |
11e5274a | 2129 | block->block = gfc_get_code (EXEC_DO); |
8e54f139 | 2130 | |
9e04287b TB |
2131 | /* Offset calculation. */ |
2132 | block = finalization_get_offset (idx, idx2, offset, strides, sizes, | |
2133 | byte_stride, rank, block->block, | |
2134 | sub_ns); | |
2135 | ||
8e54f139 TB |
2136 | /* Create code for |
2137 | CALL C_F_POINTER (TRANSFER (TRANSFER (C_LOC (array, cptr), c_intptr) | |
9e04287b TB |
2138 | + offset, c_ptr), ptr). */ |
2139 | block->next | |
2140 | = finalization_scalarizer (array, ptr, | |
2141 | gfc_lval_expr_from_sym (offset), | |
2142 | sub_ns); | |
2143 | block = block->next; | |
8e54f139 TB |
2144 | |
2145 | /* CALL final_elemental (array). */ | |
11e5274a | 2146 | block->next = gfc_get_code (EXEC_CALL); |
8e54f139 | 2147 | block = block->next; |
8e54f139 TB |
2148 | block->symtree = fini_elem->proc_tree; |
2149 | block->resolved_sym = fini_elem->proc_sym; | |
2150 | block->ext.actual = gfc_get_actual_arglist (); | |
2151 | block->ext.actual->expr = gfc_lval_expr_from_sym (ptr); | |
2152 | } | |
2153 | } | |
2154 | ||
2155 | /* Finalize and deallocate allocatable components. The same manual | |
2156 | scalarization is used as above. */ | |
2157 | ||
2158 | if (finalizable_comp) | |
2159 | { | |
2160 | gfc_symbol *stat; | |
2161 | gfc_code *block = NULL; | |
8e54f139 TB |
2162 | |
2163 | if (!ptr) | |
2164 | { | |
807b50a7 | 2165 | gfc_get_symbol ("ptr2", sub_ns, &ptr); |
8e54f139 TB |
2166 | ptr->ts.type = BT_DERIVED; |
2167 | ptr->ts.u.derived = derived; | |
2168 | ptr->attr.flavor = FL_VARIABLE; | |
2169 | ptr->attr.pointer = 1; | |
2170 | ptr->attr.artificial = 1; | |
2171 | gfc_set_sym_referenced (ptr); | |
2172 | gfc_commit_symbol (ptr); | |
2173 | } | |
2174 | ||
2175 | gfc_get_symbol ("ignore", sub_ns, &stat); | |
2176 | stat->attr.flavor = FL_VARIABLE; | |
2177 | stat->attr.artificial = 1; | |
2178 | stat->ts.type = BT_INTEGER; | |
2179 | stat->ts.kind = gfc_default_integer_kind; | |
2180 | gfc_set_sym_referenced (stat); | |
2181 | gfc_commit_symbol (stat); | |
2182 | ||
2183 | /* Create loop. */ | |
2184 | iter = gfc_get_iterator (); | |
2185 | iter->var = gfc_lval_expr_from_sym (idx); | |
2186 | iter->start = gfc_get_int_expr (gfc_index_integer_kind, NULL, 0); | |
2187 | iter->end = gfc_lval_expr_from_sym (nelem); | |
2188 | iter->step = gfc_get_int_expr (gfc_index_integer_kind, NULL, 1); | |
11e5274a | 2189 | last_code->next = gfc_get_code (EXEC_DO); |
8e54f139 | 2190 | last_code = last_code->next; |
8e54f139 | 2191 | last_code->ext.iterator = iter; |
11e5274a | 2192 | last_code->block = gfc_get_code (EXEC_DO); |
8e54f139 | 2193 | |
9e04287b TB |
2194 | /* Offset calculation. */ |
2195 | block = finalization_get_offset (idx, idx2, offset, strides, sizes, | |
2196 | byte_stride, rank, last_code->block, | |
2197 | sub_ns); | |
2198 | ||
8e54f139 TB |
2199 | /* Create code for |
2200 | CALL C_F_POINTER (TRANSFER (TRANSFER (C_LOC (array, cptr), c_intptr) | |
29a7d776 | 2201 | + idx * stride, c_ptr), ptr). */ |
9e04287b TB |
2202 | block->next = finalization_scalarizer (array, ptr, |
2203 | gfc_lval_expr_from_sym(offset), | |
2204 | sub_ns); | |
2205 | block = block->next; | |
8e54f139 TB |
2206 | |
2207 | for (comp = derived->components; comp; comp = comp->next) | |
2208 | { | |
2209 | if (comp == derived->components && derived->attr.extension | |
2210 | && ancestor_wrapper && ancestor_wrapper->expr_type != EXPR_NULL) | |
2211 | continue; | |
2212 | ||
2213 | finalize_component (gfc_lval_expr_from_sym (ptr), derived, comp, | |
807b50a7 | 2214 | stat, fini_coarray, &block, sub_ns); |
8e54f139 TB |
2215 | if (!last_code->block->next) |
2216 | last_code->block->next = block; | |
2217 | } | |
2218 | ||
2219 | } | |
2220 | ||
2221 | /* Call the finalizer of the ancestor. */ | |
2222 | if (ancestor_wrapper && ancestor_wrapper->expr_type != EXPR_NULL) | |
2223 | { | |
11e5274a | 2224 | last_code->next = gfc_get_code (EXEC_CALL); |
8e54f139 | 2225 | last_code = last_code->next; |
8e54f139 TB |
2226 | last_code->symtree = ancestor_wrapper->symtree; |
2227 | last_code->resolved_sym = ancestor_wrapper->symtree->n.sym; | |
2228 | ||
2229 | last_code->ext.actual = gfc_get_actual_arglist (); | |
2230 | last_code->ext.actual->expr = gfc_lval_expr_from_sym (array); | |
29a7d776 | 2231 | last_code->ext.actual->next = gfc_get_actual_arglist (); |
9e04287b | 2232 | last_code->ext.actual->next->expr = gfc_lval_expr_from_sym (byte_stride); |
29a7d776 TB |
2233 | last_code->ext.actual->next->next = gfc_get_actual_arglist (); |
2234 | last_code->ext.actual->next->next->expr | |
2235 | = gfc_lval_expr_from_sym (fini_coarray); | |
8e54f139 TB |
2236 | } |
2237 | ||
9e04287b | 2238 | gfc_free_expr (rank); |
8e54f139 TB |
2239 | vtab_final->initializer = gfc_lval_expr_from_sym (final); |
2240 | vtab_final->ts.interface = final; | |
2004617a | 2241 | free (name); |
8e54f139 TB |
2242 | } |
2243 | ||
2244 | ||
88ce8031 | 2245 | /* Add procedure pointers for all type-bound procedures to a vtab. */ |
d15bac21 JW |
2246 | |
2247 | static void | |
88ce8031 | 2248 | add_procs_to_declared_vtab (gfc_symbol *derived, gfc_symbol *vtype) |
d15bac21 | 2249 | { |
d15bac21 JW |
2250 | gfc_symbol* super_type; |
2251 | ||
88ce8031 | 2252 | super_type = gfc_get_derived_super_type (derived); |
d15bac21 | 2253 | |
88ce8031 | 2254 | if (super_type && (super_type != derived)) |
d15bac21 | 2255 | { |
88ce8031 JW |
2256 | /* Make sure that the PPCs appear in the same order as in the parent. */ |
2257 | copy_vtab_proc_comps (super_type, vtype); | |
1d0134b3 | 2258 | /* Only needed to get the PPC initializers right. */ |
88ce8031 JW |
2259 | add_procs_to_declared_vtab (super_type, vtype); |
2260 | } | |
d15bac21 | 2261 | |
88ce8031 JW |
2262 | if (derived->f2k_derived && derived->f2k_derived->tb_sym_root) |
2263 | add_procs_to_declared_vtab1 (derived->f2k_derived->tb_sym_root, vtype); | |
d15bac21 | 2264 | |
88ce8031 JW |
2265 | if (derived->f2k_derived && derived->f2k_derived->tb_uop_root) |
2266 | add_procs_to_declared_vtab1 (derived->f2k_derived->tb_uop_root, vtype); | |
d15bac21 JW |
2267 | } |
2268 | ||
2269 | ||
29a7d776 | 2270 | /* Find or generate the symbol for a derived type's vtab. */ |
d15bac21 JW |
2271 | |
2272 | gfc_symbol * | |
88ce8031 | 2273 | gfc_find_derived_vtab (gfc_symbol *derived) |
d15bac21 JW |
2274 | { |
2275 | gfc_namespace *ns; | |
50f30801 | 2276 | gfc_symbol *vtab = NULL, *vtype = NULL, *found_sym = NULL, *def_init = NULL; |
611c64f0 | 2277 | gfc_symbol *copy = NULL, *src = NULL, *dst = NULL; |
dfd6231e | 2278 | gfc_gsymbol *gsym = NULL; |
bf9f15ee | 2279 | gfc_symbol *dealloc = NULL, *arg = NULL; |
c49ea23d | 2280 | |
2fcd5884 PT |
2281 | if (derived->attr.pdt_template) |
2282 | return NULL; | |
2283 | ||
8b704316 | 2284 | /* Find the top-level namespace. */ |
e10f52d0 | 2285 | for (ns = gfc_current_ns; ns; ns = ns->parent) |
d15bac21 JW |
2286 | if (!ns->parent) |
2287 | break; | |
2288 | ||
e10f52d0 | 2289 | /* If the type is a class container, use the underlying derived type. */ |
8b704316 | 2290 | if (!derived->attr.unlimited_polymorphic && derived->attr.is_class) |
e10f52d0 | 2291 | derived = gfc_get_derived_super_type (derived); |
8b704316 | 2292 | |
7c929c9c TB |
2293 | if (!derived) |
2294 | return NULL; | |
2295 | ||
d9fb6f2b HA |
2296 | if (!derived->name) |
2297 | return NULL; | |
2298 | ||
dfd6231e PT |
2299 | /* Find the gsymbol for the module of use associated derived types. */ |
2300 | if ((derived->attr.use_assoc || derived->attr.used_in_submodule) | |
2301 | && !derived->attr.vtype && !derived->attr.is_class) | |
2302 | gsym = gfc_find_gsymbol (gfc_gsym_root, derived->module); | |
2303 | else | |
2304 | gsym = NULL; | |
2305 | ||
2306 | /* Work in the gsymbol namespace if the top-level namespace is a module. | |
2307 | This ensures that the vtable is unique, which is required since we use | |
2308 | its address in SELECT TYPE. */ | |
2309 | if (gsym && gsym->ns && ns && ns->proc_name | |
2310 | && ns->proc_name->attr.flavor == FL_MODULE) | |
2311 | ns = gsym->ns; | |
2312 | ||
d15bac21 JW |
2313 | if (ns) |
2314 | { | |
2004617a QZ |
2315 | char tname[GFC_MAX_SYMBOL_LEN+1]; |
2316 | char *name; | |
29a7d776 | 2317 | |
4fa02692 | 2318 | get_unique_hashed_string (tname, derived); |
2004617a | 2319 | name = xasprintf ("__vtab_%s", tname); |
611c64f0 JW |
2320 | |
2321 | /* Look for the vtab symbol in various namespaces. */ | |
dfd6231e PT |
2322 | if (gsym && gsym->ns) |
2323 | { | |
2324 | gfc_find_symbol (name, gsym->ns, 0, &vtab); | |
2325 | if (vtab) | |
2326 | ns = gsym->ns; | |
2327 | } | |
2328 | if (vtab == NULL) | |
2329 | gfc_find_symbol (name, gfc_current_ns, 0, &vtab); | |
611c64f0 JW |
2330 | if (vtab == NULL) |
2331 | gfc_find_symbol (name, ns, 0, &vtab); | |
2332 | if (vtab == NULL) | |
2333 | gfc_find_symbol (name, derived->ns, 0, &vtab); | |
d15bac21 JW |
2334 | |
2335 | if (vtab == NULL) | |
2336 | { | |
2337 | gfc_get_symbol (name, ns, &vtab); | |
2338 | vtab->ts.type = BT_DERIVED; | |
cddf0123 | 2339 | if (!gfc_add_flavor (&vtab->attr, FL_VARIABLE, NULL, |
524af0d6 | 2340 | &gfc_current_locus)) |
e10f52d0 | 2341 | goto cleanup; |
d15bac21 | 2342 | vtab->attr.target = 1; |
95f5c775 | 2343 | vtab->attr.save = SAVE_IMPLICIT; |
d15bac21 | 2344 | vtab->attr.vtab = 1; |
f3f98a1e | 2345 | vtab->attr.access = ACCESS_PUBLIC; |
d15bac21 | 2346 | gfc_set_sym_referenced (vtab); |
2004617a | 2347 | name = xasprintf ("__vtype_%s", tname); |
29a7d776 | 2348 | |
d15bac21 JW |
2349 | gfc_find_symbol (name, ns, 0, &vtype); |
2350 | if (vtype == NULL) | |
2351 | { | |
2352 | gfc_component *c; | |
2353 | gfc_symbol *parent = NULL, *parent_vtab = NULL; | |
bf9f15ee PT |
2354 | bool rdt = false; |
2355 | ||
2356 | /* Is this a derived type with recursive allocatable | |
2357 | components? */ | |
2358 | c = (derived->attr.unlimited_polymorphic | |
2359 | || derived->attr.abstract) ? | |
2360 | NULL : derived->components; | |
2361 | for (; c; c= c->next) | |
2362 | if (c->ts.type == BT_DERIVED | |
2363 | && c->ts.u.derived == derived) | |
2364 | { | |
2365 | rdt = true; | |
2366 | break; | |
2367 | } | |
d15bac21 JW |
2368 | |
2369 | gfc_get_symbol (name, ns, &vtype); | |
cddf0123 | 2370 | if (!gfc_add_flavor (&vtype->attr, FL_DERIVED, NULL, |
524af0d6 | 2371 | &gfc_current_locus)) |
81fb8a48 | 2372 | goto cleanup; |
f3f98a1e | 2373 | vtype->attr.access = ACCESS_PUBLIC; |
611c64f0 | 2374 | vtype->attr.vtype = 1; |
d15bac21 JW |
2375 | gfc_set_sym_referenced (vtype); |
2376 | ||
b04533af | 2377 | /* Add component '_hash'. */ |
524af0d6 | 2378 | if (!gfc_add_component (vtype, "_hash", &c)) |
81fb8a48 | 2379 | goto cleanup; |
d15bac21 JW |
2380 | c->ts.type = BT_INTEGER; |
2381 | c->ts.kind = 4; | |
2382 | c->attr.access = ACCESS_PRIVATE; | |
2383 | c->initializer = gfc_get_int_expr (gfc_default_integer_kind, | |
2384 | NULL, derived->hash_value); | |
2385 | ||
b04533af | 2386 | /* Add component '_size'. */ |
524af0d6 | 2387 | if (!gfc_add_component (vtype, "_size", &c)) |
81fb8a48 | 2388 | goto cleanup; |
d15bac21 | 2389 | c->ts.type = BT_INTEGER; |
f622221a | 2390 | c->ts.kind = gfc_size_kind; |
d15bac21 JW |
2391 | c->attr.access = ACCESS_PRIVATE; |
2392 | /* Remember the derived type in ts.u.derived, | |
2393 | so that the correct initializer can be set later on | |
2394 | (in gfc_conv_structure). */ | |
2395 | c->ts.u.derived = derived; | |
f622221a | 2396 | c->initializer = gfc_get_int_expr (gfc_size_kind, |
d15bac21 JW |
2397 | NULL, 0); |
2398 | ||
b04533af | 2399 | /* Add component _extends. */ |
524af0d6 | 2400 | if (!gfc_add_component (vtype, "_extends", &c)) |
81fb8a48 | 2401 | goto cleanup; |
d15bac21 JW |
2402 | c->attr.pointer = 1; |
2403 | c->attr.access = ACCESS_PRIVATE; | |
8b704316 PT |
2404 | if (!derived->attr.unlimited_polymorphic) |
2405 | parent = gfc_get_derived_super_type (derived); | |
2406 | else | |
2407 | parent = NULL; | |
2408 | ||
d15bac21 JW |
2409 | if (parent) |
2410 | { | |
88ce8031 | 2411 | parent_vtab = gfc_find_derived_vtab (parent); |
d15bac21 JW |
2412 | c->ts.type = BT_DERIVED; |
2413 | c->ts.u.derived = parent_vtab->ts.u.derived; | |
2414 | c->initializer = gfc_get_expr (); | |
2415 | c->initializer->expr_type = EXPR_VARIABLE; | |
2416 | gfc_find_sym_tree (parent_vtab->name, parent_vtab->ns, | |
2417 | 0, &c->initializer->symtree); | |
2418 | } | |
2419 | else | |
2420 | { | |
2421 | c->ts.type = BT_DERIVED; | |
2422 | c->ts.u.derived = vtype; | |
2423 | c->initializer = gfc_get_null_expr (NULL); | |
2424 | } | |
2425 | ||
8b704316 PT |
2426 | if (!derived->attr.unlimited_polymorphic |
2427 | && derived->components == NULL | |
2428 | && !derived->attr.zero_comp) | |
611c64f0 JW |
2429 | { |
2430 | /* At this point an error must have occurred. | |
2431 | Prevent further errors on the vtype components. */ | |
2432 | found_sym = vtab; | |
2433 | goto have_vtype; | |
2434 | } | |
2435 | ||
b04533af | 2436 | /* Add component _def_init. */ |
524af0d6 | 2437 | if (!gfc_add_component (vtype, "_def_init", &c)) |
50f30801 JW |
2438 | goto cleanup; |
2439 | c->attr.pointer = 1; | |
8e54f139 | 2440 | c->attr.artificial = 1; |
50f30801 JW |
2441 | c->attr.access = ACCESS_PRIVATE; |
2442 | c->ts.type = BT_DERIVED; | |
2443 | c->ts.u.derived = derived; | |
8b704316 PT |
2444 | if (derived->attr.unlimited_polymorphic |
2445 | || derived->attr.abstract) | |
611c64f0 | 2446 | c->initializer = gfc_get_null_expr (NULL); |
50f30801 JW |
2447 | else |
2448 | { | |
2449 | /* Construct default initialization variable. */ | |
2004617a | 2450 | name = xasprintf ("__def_init_%s", tname); |
50f30801 JW |
2451 | gfc_get_symbol (name, ns, &def_init); |
2452 | def_init->attr.target = 1; | |
8e54f139 | 2453 | def_init->attr.artificial = 1; |
95f5c775 | 2454 | def_init->attr.save = SAVE_IMPLICIT; |
50f30801 | 2455 | def_init->attr.access = ACCESS_PUBLIC; |
22c30bc0 | 2456 | def_init->attr.flavor = FL_VARIABLE; |
50f30801 JW |
2457 | gfc_set_sym_referenced (def_init); |
2458 | def_init->ts.type = BT_DERIVED; | |
2459 | def_init->ts.u.derived = derived; | |
2460 | def_init->value = gfc_default_initializer (&def_init->ts); | |
2461 | ||
2462 | c->initializer = gfc_lval_expr_from_sym (def_init); | |
2463 | } | |
2464 | ||
b04533af | 2465 | /* Add component _copy. */ |
524af0d6 | 2466 | if (!gfc_add_component (vtype, "_copy", &c)) |
611c64f0 JW |
2467 | goto cleanup; |
2468 | c->attr.proc_pointer = 1; | |
2469 | c->attr.access = ACCESS_PRIVATE; | |
2470 | c->tb = XCNEW (gfc_typebound_proc); | |
2471 | c->tb->ppc = 1; | |
8b704316 PT |
2472 | if (derived->attr.unlimited_polymorphic |
2473 | || derived->attr.abstract) | |
611c64f0 JW |
2474 | c->initializer = gfc_get_null_expr (NULL); |
2475 | else | |
2476 | { | |
2477 | /* Set up namespace. */ | |
2478 | gfc_namespace *sub_ns = gfc_get_namespace (ns, 0); | |
2479 | sub_ns->sibling = ns->contained; | |
2480 | ns->contained = sub_ns; | |
2481 | sub_ns->resolved = 1; | |
2482 | /* Set up procedure symbol. */ | |
2004617a | 2483 | name = xasprintf ("__copy_%s", tname); |
611c64f0 JW |
2484 | gfc_get_symbol (name, sub_ns, ©); |
2485 | sub_ns->proc_name = copy; | |
2486 | copy->attr.flavor = FL_PROCEDURE; | |
cf651ca2 | 2487 | copy->attr.subroutine = 1; |
0b73eb81 | 2488 | copy->attr.pure = 1; |
8e54f139 | 2489 | copy->attr.artificial = 1; |
611c64f0 | 2490 | copy->attr.if_source = IFSRC_DECL; |
c49ea23d PT |
2491 | /* This is elemental so that arrays are automatically |
2492 | treated correctly by the scalarizer. */ | |
2493 | copy->attr.elemental = 1; | |
844ba455 JW |
2494 | if (ns->proc_name->attr.flavor == FL_MODULE) |
2495 | copy->module = ns->proc_name->name; | |
611c64f0 JW |
2496 | gfc_set_sym_referenced (copy); |
2497 | /* Set up formal arguments. */ | |
2498 | gfc_get_symbol ("src", sub_ns, &src); | |
2499 | src->ts.type = BT_DERIVED; | |
2500 | src->ts.u.derived = derived; | |
2501 | src->attr.flavor = FL_VARIABLE; | |
2502 | src->attr.dummy = 1; | |
8e54f139 TB |
2503 | src->attr.artificial = 1; |
2504 | src->attr.intent = INTENT_IN; | |
611c64f0 JW |
2505 | gfc_set_sym_referenced (src); |
2506 | copy->formal = gfc_get_formal_arglist (); | |
2507 | copy->formal->sym = src; | |
2508 | gfc_get_symbol ("dst", sub_ns, &dst); | |
2509 | dst->ts.type = BT_DERIVED; | |
2510 | dst->ts.u.derived = derived; | |
2511 | dst->attr.flavor = FL_VARIABLE; | |
2512 | dst->attr.dummy = 1; | |
8e54f139 | 2513 | dst->attr.artificial = 1; |
16023efc | 2514 | dst->attr.intent = INTENT_INOUT; |
611c64f0 JW |
2515 | gfc_set_sym_referenced (dst); |
2516 | copy->formal->next = gfc_get_formal_arglist (); | |
2517 | copy->formal->next->sym = dst; | |
2518 | /* Set up code. */ | |
11e5274a | 2519 | sub_ns->code = gfc_get_code (EXEC_INIT_ASSIGN); |
611c64f0 JW |
2520 | sub_ns->code->expr1 = gfc_lval_expr_from_sym (dst); |
2521 | sub_ns->code->expr2 = gfc_lval_expr_from_sym (src); | |
2522 | /* Set initializer. */ | |
2523 | c->initializer = gfc_lval_expr_from_sym (copy); | |
2524 | c->ts.interface = copy; | |
2525 | } | |
2526 | ||
8e54f139 TB |
2527 | /* Add component _final, which contains a procedure pointer to |
2528 | a wrapper which handles both the freeing of allocatable | |
2529 | components and the calls to finalization subroutines. | |
2530 | Note: The actual wrapper function can only be generated | |
2531 | at resolution time. */ | |
524af0d6 | 2532 | if (!gfc_add_component (vtype, "_final", &c)) |
8e54f139 TB |
2533 | goto cleanup; |
2534 | c->attr.proc_pointer = 1; | |
2535 | c->attr.access = ACCESS_PRIVATE; | |
f8add009 | 2536 | c->attr.artificial = 1; |
8e54f139 TB |
2537 | c->tb = XCNEW (gfc_typebound_proc); |
2538 | c->tb->ppc = 1; | |
2539 | generate_finalization_wrapper (derived, ns, tname, c); | |
2540 | ||
bf9f15ee PT |
2541 | /* Add component _deallocate. */ |
2542 | if (!gfc_add_component (vtype, "_deallocate", &c)) | |
2543 | goto cleanup; | |
2544 | c->attr.proc_pointer = 1; | |
2545 | c->attr.access = ACCESS_PRIVATE; | |
2546 | c->tb = XCNEW (gfc_typebound_proc); | |
2547 | c->tb->ppc = 1; | |
2548 | if (derived->attr.unlimited_polymorphic | |
2549 | || derived->attr.abstract | |
2550 | || !rdt) | |
2551 | c->initializer = gfc_get_null_expr (NULL); | |
2552 | else | |
2553 | { | |
2554 | /* Set up namespace. */ | |
2555 | gfc_namespace *sub_ns = gfc_get_namespace (ns, 0); | |
2556 | ||
2557 | sub_ns->sibling = ns->contained; | |
2558 | ns->contained = sub_ns; | |
2559 | sub_ns->resolved = 1; | |
2560 | /* Set up procedure symbol. */ | |
2004617a | 2561 | name = xasprintf ("__deallocate_%s", tname); |
bf9f15ee PT |
2562 | gfc_get_symbol (name, sub_ns, &dealloc); |
2563 | sub_ns->proc_name = dealloc; | |
2564 | dealloc->attr.flavor = FL_PROCEDURE; | |
2565 | dealloc->attr.subroutine = 1; | |
2566 | dealloc->attr.pure = 1; | |
2567 | dealloc->attr.artificial = 1; | |
2568 | dealloc->attr.if_source = IFSRC_DECL; | |
2569 | ||
2570 | if (ns->proc_name->attr.flavor == FL_MODULE) | |
2571 | dealloc->module = ns->proc_name->name; | |
2572 | gfc_set_sym_referenced (dealloc); | |
2573 | /* Set up formal argument. */ | |
2574 | gfc_get_symbol ("arg", sub_ns, &arg); | |
2575 | arg->ts.type = BT_DERIVED; | |
2576 | arg->ts.u.derived = derived; | |
2577 | arg->attr.flavor = FL_VARIABLE; | |
2578 | arg->attr.dummy = 1; | |
2579 | arg->attr.artificial = 1; | |
2580 | arg->attr.intent = INTENT_INOUT; | |
2581 | arg->attr.dimension = 1; | |
2582 | arg->attr.allocatable = 1; | |
2583 | arg->as = gfc_get_array_spec(); | |
2584 | arg->as->type = AS_ASSUMED_SHAPE; | |
2585 | arg->as->rank = 1; | |
2586 | arg->as->lower[0] = gfc_get_int_expr (gfc_default_integer_kind, | |
2587 | NULL, 1); | |
2588 | gfc_set_sym_referenced (arg); | |
2589 | dealloc->formal = gfc_get_formal_arglist (); | |
2590 | dealloc->formal->sym = arg; | |
2591 | /* Set up code. */ | |
2592 | sub_ns->code = gfc_get_code (EXEC_DEALLOCATE); | |
2593 | sub_ns->code->ext.alloc.list = gfc_get_alloc (); | |
2594 | sub_ns->code->ext.alloc.list->expr | |
2595 | = gfc_lval_expr_from_sym (arg); | |
2596 | /* Set initializer. */ | |
2597 | c->initializer = gfc_lval_expr_from_sym (dealloc); | |
2598 | c->ts.interface = dealloc; | |
2599 | } | |
2600 | ||
50f30801 | 2601 | /* Add procedure pointers for type-bound procedures. */ |
8b704316 PT |
2602 | if (!derived->attr.unlimited_polymorphic) |
2603 | add_procs_to_declared_vtab (derived, vtype); | |
d6cd8711 | 2604 | } |
d15bac21 | 2605 | |
611c64f0 | 2606 | have_vtype: |
d15bac21 JW |
2607 | vtab->ts.u.derived = vtype; |
2608 | vtab->value = gfc_default_initializer (&vtab->ts); | |
2609 | } | |
2004617a | 2610 | free (name); |
d15bac21 JW |
2611 | } |
2612 | ||
81fb8a48 MM |
2613 | found_sym = vtab; |
2614 | ||
2615 | cleanup: | |
2616 | /* It is unexpected to have some symbols added at resolution or code | |
2617 | generation time. We commit the changes in order to keep a clean state. */ | |
2618 | if (found_sym) | |
e10f52d0 JW |
2619 | { |
2620 | gfc_commit_symbol (vtab); | |
2621 | if (vtype) | |
2622 | gfc_commit_symbol (vtype); | |
50f30801 JW |
2623 | if (def_init) |
2624 | gfc_commit_symbol (def_init); | |
611c64f0 JW |
2625 | if (copy) |
2626 | gfc_commit_symbol (copy); | |
2627 | if (src) | |
2628 | gfc_commit_symbol (src); | |
2629 | if (dst) | |
2630 | gfc_commit_symbol (dst); | |
bf9f15ee PT |
2631 | if (dealloc) |
2632 | gfc_commit_symbol (dealloc); | |
2633 | if (arg) | |
2634 | gfc_commit_symbol (arg); | |
e10f52d0 | 2635 | } |
81fb8a48 MM |
2636 | else |
2637 | gfc_undo_symbols (); | |
2638 | ||
2639 | return found_sym; | |
d15bac21 JW |
2640 | } |
2641 | ||
2642 | ||
86035eec TB |
2643 | /* Check if a derived type is finalizable. That is the case if it |
2644 | (1) has a FINAL subroutine or | |
2645 | (2) has a nonpointer nonallocatable component of finalizable type. | |
2646 | If it is finalizable, return an expression containing the | |
2647 | finalization wrapper. */ | |
2648 | ||
2649 | bool | |
2650 | gfc_is_finalizable (gfc_symbol *derived, gfc_expr **final_expr) | |
2651 | { | |
2652 | gfc_symbol *vtab; | |
2653 | gfc_component *c; | |
2654 | ||
2655 | /* (1) Check for FINAL subroutines. */ | |
2656 | if (derived->f2k_derived && derived->f2k_derived->finalizers) | |
2657 | goto yes; | |
2658 | ||
2659 | /* (2) Check for components of finalizable type. */ | |
2660 | for (c = derived->components; c; c = c->next) | |
2661 | if (c->ts.type == BT_DERIVED | |
2662 | && !c->attr.pointer && !c->attr.proc_pointer && !c->attr.allocatable | |
2663 | && gfc_is_finalizable (c->ts.u.derived, NULL)) | |
2664 | goto yes; | |
2665 | ||
2666 | return false; | |
2667 | ||
2668 | yes: | |
2669 | /* Make sure vtab is generated. */ | |
2670 | vtab = gfc_find_derived_vtab (derived); | |
2671 | if (final_expr) | |
2672 | { | |
2673 | /* Return finalizer expression. */ | |
2674 | gfc_component *final; | |
2675 | final = vtab->ts.u.derived->components->next->next->next->next->next; | |
2676 | gcc_assert (strcmp (final->name, "_final") == 0); | |
2677 | gcc_assert (final->initializer | |
2678 | && final->initializer->expr_type != EXPR_NULL); | |
2679 | *final_expr = final->initializer; | |
2680 | } | |
2681 | return true; | |
2682 | } | |
2683 | ||
2684 | ||
8b704316 | 2685 | /* Find (or generate) the symbol for an intrinsic type's vtab. This is |
7289d1c9 | 2686 | needed to support unlimited polymorphism. */ |
8b704316 | 2687 | |
7289d1c9 JW |
2688 | static gfc_symbol * |
2689 | find_intrinsic_vtab (gfc_typespec *ts) | |
8b704316 PT |
2690 | { |
2691 | gfc_namespace *ns; | |
adede54c | 2692 | gfc_symbol *vtab = NULL, *vtype = NULL, *found_sym = NULL; |
8b704316 | 2693 | gfc_symbol *copy = NULL, *src = NULL, *dst = NULL; |
8b704316 | 2694 | |
8b704316 PT |
2695 | /* Find the top-level namespace. */ |
2696 | for (ns = gfc_current_ns; ns; ns = ns->parent) | |
2697 | if (!ns->parent) | |
2698 | break; | |
2699 | ||
8b704316 PT |
2700 | if (ns) |
2701 | { | |
2004617a QZ |
2702 | char tname[GFC_MAX_SYMBOL_LEN+1]; |
2703 | char *name; | |
b120c8b2 | 2704 | |
cef026ec AV |
2705 | /* Encode all types as TYPENAME_KIND_ including especially character |
2706 | arrays, whose length is now consistently stored in the _len component | |
2707 | of the class-variable. */ | |
2708 | sprintf (tname, "%s_%d_", gfc_basic_typename (ts->type), ts->kind); | |
2004617a | 2709 | name = xasprintf ("__vtab_%s", tname); |
8b704316 | 2710 | |
63631f7d AV |
2711 | /* Look for the vtab symbol in the top-level namespace only. */ |
2712 | gfc_find_symbol (name, ns, 0, &vtab); | |
8b704316 PT |
2713 | |
2714 | if (vtab == NULL) | |
2715 | { | |
2716 | gfc_get_symbol (name, ns, &vtab); | |
2717 | vtab->ts.type = BT_DERIVED; | |
cddf0123 | 2718 | if (!gfc_add_flavor (&vtab->attr, FL_VARIABLE, NULL, |
524af0d6 | 2719 | &gfc_current_locus)) |
8b704316 PT |
2720 | goto cleanup; |
2721 | vtab->attr.target = 1; | |
2722 | vtab->attr.save = SAVE_IMPLICIT; | |
2723 | vtab->attr.vtab = 1; | |
2724 | vtab->attr.access = ACCESS_PUBLIC; | |
2725 | gfc_set_sym_referenced (vtab); | |
2004617a | 2726 | name = xasprintf ("__vtype_%s", tname); |
8b704316 PT |
2727 | |
2728 | gfc_find_symbol (name, ns, 0, &vtype); | |
2729 | if (vtype == NULL) | |
2730 | { | |
2731 | gfc_component *c; | |
2732 | int hash; | |
2733 | gfc_namespace *sub_ns; | |
2734 | gfc_namespace *contained; | |
cddf0123 | 2735 | gfc_expr *e; |
cdd17931 | 2736 | size_t e_size; |
8b704316 PT |
2737 | |
2738 | gfc_get_symbol (name, ns, &vtype); | |
cddf0123 | 2739 | if (!gfc_add_flavor (&vtype->attr, FL_DERIVED, NULL, |
524af0d6 | 2740 | &gfc_current_locus)) |
8b704316 PT |
2741 | goto cleanup; |
2742 | vtype->attr.access = ACCESS_PUBLIC; | |
2743 | vtype->attr.vtype = 1; | |
2744 | gfc_set_sym_referenced (vtype); | |
2745 | ||
2746 | /* Add component '_hash'. */ | |
524af0d6 | 2747 | if (!gfc_add_component (vtype, "_hash", &c)) |
8b704316 PT |
2748 | goto cleanup; |
2749 | c->ts.type = BT_INTEGER; | |
2750 | c->ts.kind = 4; | |
2751 | c->attr.access = ACCESS_PRIVATE; | |
2752 | hash = gfc_intrinsic_hash_value (ts); | |
2753 | c->initializer = gfc_get_int_expr (gfc_default_integer_kind, | |
2754 | NULL, hash); | |
2755 | ||
2756 | /* Add component '_size'. */ | |
524af0d6 | 2757 | if (!gfc_add_component (vtype, "_size", &c)) |
8b704316 PT |
2758 | goto cleanup; |
2759 | c->ts.type = BT_INTEGER; | |
f622221a | 2760 | c->ts.kind = gfc_size_kind; |
8b704316 | 2761 | c->attr.access = ACCESS_PRIVATE; |
cddf0123 PT |
2762 | |
2763 | /* Build a minimal expression to make use of | |
e53b6e56 | 2764 | target-memory.cc/gfc_element_size for 'size'. Special handling |
34d9d749 AV |
2765 | for character arrays, that are not constant sized: to support |
2766 | len (str) * kind, only the kind information is stored in the | |
2767 | vtab. */ | |
cddf0123 PT |
2768 | e = gfc_get_expr (); |
2769 | e->ts = *ts; | |
2770 | e->expr_type = EXPR_VARIABLE; | |
cdd17931 HA |
2771 | if (ts->type == BT_CHARACTER) |
2772 | e_size = ts->kind; | |
2773 | else | |
2774 | gfc_element_size (e, &e_size); | |
f622221a | 2775 | c->initializer = gfc_get_int_expr (gfc_size_kind, |
cddf0123 | 2776 | NULL, |
cdd17931 | 2777 | e_size); |
cddf0123 | 2778 | gfc_free_expr (e); |
8b704316 PT |
2779 | |
2780 | /* Add component _extends. */ | |
524af0d6 | 2781 | if (!gfc_add_component (vtype, "_extends", &c)) |
8b704316 PT |
2782 | goto cleanup; |
2783 | c->attr.pointer = 1; | |
2784 | c->attr.access = ACCESS_PRIVATE; | |
15115f7a | 2785 | c->ts.type = BT_VOID; |
8b704316 PT |
2786 | c->initializer = gfc_get_null_expr (NULL); |
2787 | ||
2788 | /* Add component _def_init. */ | |
524af0d6 | 2789 | if (!gfc_add_component (vtype, "_def_init", &c)) |
8b704316 PT |
2790 | goto cleanup; |
2791 | c->attr.pointer = 1; | |
2792 | c->attr.access = ACCESS_PRIVATE; | |
15115f7a | 2793 | c->ts.type = BT_VOID; |
8b704316 PT |
2794 | c->initializer = gfc_get_null_expr (NULL); |
2795 | ||
2796 | /* Add component _copy. */ | |
524af0d6 | 2797 | if (!gfc_add_component (vtype, "_copy", &c)) |
8b704316 PT |
2798 | goto cleanup; |
2799 | c->attr.proc_pointer = 1; | |
2800 | c->attr.access = ACCESS_PRIVATE; | |
2801 | c->tb = XCNEW (gfc_typebound_proc); | |
2802 | c->tb->ppc = 1; | |
2803 | ||
3c3f892b | 2804 | if (ts->type != BT_CHARACTER) |
2004617a | 2805 | name = xasprintf ("__copy_%s", tname); |
3c3f892b JW |
2806 | else |
2807 | { | |
2808 | /* __copy is always the same for characters. | |
2809 | Check to see if copy function already exists. */ | |
2004617a | 2810 | name = xasprintf ("__copy_character_%d", ts->kind); |
3c3f892b JW |
2811 | contained = ns->contained; |
2812 | for (; contained; contained = contained->sibling) | |
2813 | if (contained->proc_name | |
2814 | && strcmp (name, contained->proc_name->name) == 0) | |
2815 | { | |
2816 | copy = contained->proc_name; | |
2817 | goto got_char_copy; | |
2818 | } | |
2819 | } | |
8b704316 PT |
2820 | |
2821 | /* Set up namespace. */ | |
2822 | sub_ns = gfc_get_namespace (ns, 0); | |
2823 | sub_ns->sibling = ns->contained; | |
2824 | ns->contained = sub_ns; | |
2825 | sub_ns->resolved = 1; | |
2826 | /* Set up procedure symbol. */ | |
8b704316 PT |
2827 | gfc_get_symbol (name, sub_ns, ©); |
2828 | sub_ns->proc_name = copy; | |
2829 | copy->attr.flavor = FL_PROCEDURE; | |
2830 | copy->attr.subroutine = 1; | |
2831 | copy->attr.pure = 1; | |
2832 | copy->attr.if_source = IFSRC_DECL; | |
2833 | /* This is elemental so that arrays are automatically | |
2834 | treated correctly by the scalarizer. */ | |
2835 | copy->attr.elemental = 1; | |
f8add009 | 2836 | if (ns->proc_name && ns->proc_name->attr.flavor == FL_MODULE) |
8b704316 | 2837 | copy->module = ns->proc_name->name; |
f8add009 | 2838 | gfc_set_sym_referenced (copy); |
8b704316 PT |
2839 | /* Set up formal arguments. */ |
2840 | gfc_get_symbol ("src", sub_ns, &src); | |
2841 | src->ts.type = ts->type; | |
2842 | src->ts.kind = ts->kind; | |
2843 | src->attr.flavor = FL_VARIABLE; | |
2844 | src->attr.dummy = 1; | |
2845 | src->attr.intent = INTENT_IN; | |
2846 | gfc_set_sym_referenced (src); | |
2847 | copy->formal = gfc_get_formal_arglist (); | |
2848 | copy->formal->sym = src; | |
2849 | gfc_get_symbol ("dst", sub_ns, &dst); | |
2850 | dst->ts.type = ts->type; | |
2851 | dst->ts.kind = ts->kind; | |
2852 | dst->attr.flavor = FL_VARIABLE; | |
2853 | dst->attr.dummy = 1; | |
16023efc | 2854 | dst->attr.intent = INTENT_INOUT; |
8b704316 PT |
2855 | gfc_set_sym_referenced (dst); |
2856 | copy->formal->next = gfc_get_formal_arglist (); | |
2857 | copy->formal->next->sym = dst; | |
2858 | /* Set up code. */ | |
11e5274a | 2859 | sub_ns->code = gfc_get_code (EXEC_INIT_ASSIGN); |
8b704316 PT |
2860 | sub_ns->code->expr1 = gfc_lval_expr_from_sym (dst); |
2861 | sub_ns->code->expr2 = gfc_lval_expr_from_sym (src); | |
2862 | got_char_copy: | |
2863 | /* Set initializer. */ | |
2864 | c->initializer = gfc_lval_expr_from_sym (copy); | |
2865 | c->ts.interface = copy; | |
94241120 TB |
2866 | |
2867 | /* Add component _final. */ | |
524af0d6 | 2868 | if (!gfc_add_component (vtype, "_final", &c)) |
94241120 TB |
2869 | goto cleanup; |
2870 | c->attr.proc_pointer = 1; | |
2871 | c->attr.access = ACCESS_PRIVATE; | |
f8add009 | 2872 | c->attr.artificial = 1; |
94241120 TB |
2873 | c->tb = XCNEW (gfc_typebound_proc); |
2874 | c->tb->ppc = 1; | |
2875 | c->initializer = gfc_get_null_expr (NULL); | |
8b704316 PT |
2876 | } |
2877 | vtab->ts.u.derived = vtype; | |
2878 | vtab->value = gfc_default_initializer (&vtab->ts); | |
2879 | } | |
2004617a | 2880 | free (name); |
8b704316 PT |
2881 | } |
2882 | ||
2883 | found_sym = vtab; | |
2884 | ||
2885 | cleanup: | |
2886 | /* It is unexpected to have some symbols added at resolution or code | |
2887 | generation time. We commit the changes in order to keep a clean state. */ | |
2888 | if (found_sym) | |
2889 | { | |
2890 | gfc_commit_symbol (vtab); | |
2891 | if (vtype) | |
2892 | gfc_commit_symbol (vtype); | |
8b704316 PT |
2893 | if (copy) |
2894 | gfc_commit_symbol (copy); | |
2895 | if (src) | |
2896 | gfc_commit_symbol (src); | |
2897 | if (dst) | |
2898 | gfc_commit_symbol (dst); | |
2899 | } | |
2900 | else | |
2901 | gfc_undo_symbols (); | |
2902 | ||
2903 | return found_sym; | |
2904 | } | |
2905 | ||
2906 | ||
7289d1c9 JW |
2907 | /* Find (or generate) a vtab for an arbitrary type (derived or intrinsic). */ |
2908 | ||
2909 | gfc_symbol * | |
2910 | gfc_find_vtab (gfc_typespec *ts) | |
2911 | { | |
2912 | switch (ts->type) | |
2913 | { | |
2914 | case BT_UNKNOWN: | |
2915 | return NULL; | |
2916 | case BT_DERIVED: | |
2917 | return gfc_find_derived_vtab (ts->u.derived); | |
2918 | case BT_CLASS: | |
d816b0c1 HA |
2919 | if (ts->u.derived->attr.is_class |
2920 | && ts->u.derived->components | |
2921 | && ts->u.derived->components->ts.u.derived) | |
903ecc6c JW |
2922 | return gfc_find_derived_vtab (ts->u.derived->components->ts.u.derived); |
2923 | else | |
2924 | return NULL; | |
7289d1c9 JW |
2925 | default: |
2926 | return find_intrinsic_vtab (ts); | |
2927 | } | |
2928 | } | |
2929 | ||
2930 | ||
d15bac21 JW |
2931 | /* General worker function to find either a type-bound procedure or a |
2932 | type-bound user operator. */ | |
2933 | ||
2934 | static gfc_symtree* | |
524af0d6 | 2935 | find_typebound_proc_uop (gfc_symbol* derived, bool* t, |
d15bac21 JW |
2936 | const char* name, bool noaccess, bool uop, |
2937 | locus* where) | |
2938 | { | |
2939 | gfc_symtree* res; | |
2940 | gfc_symtree* root; | |
2941 | ||
d15bac21 JW |
2942 | /* Set default to failure. */ |
2943 | if (t) | |
524af0d6 | 2944 | *t = false; |
d15bac21 | 2945 | |
9b940c6d JW |
2946 | if (derived->f2k_derived) |
2947 | /* Set correct symbol-root. */ | |
2948 | root = (uop ? derived->f2k_derived->tb_uop_root | |
2949 | : derived->f2k_derived->tb_sym_root); | |
2950 | else | |
2951 | return NULL; | |
2952 | ||
d15bac21 JW |
2953 | /* Try to find it in the current type's namespace. */ |
2954 | res = gfc_find_symtree (root, name); | |
2955 | if (res && res->n.tb && !res->n.tb->error) | |
2956 | { | |
2957 | /* We found one. */ | |
2958 | if (t) | |
524af0d6 | 2959 | *t = true; |
d15bac21 JW |
2960 | |
2961 | if (!noaccess && derived->attr.use_assoc | |
2962 | && res->n.tb->access == ACCESS_PRIVATE) | |
2963 | { | |
2964 | if (where) | |
c4100eae | 2965 | gfc_error ("%qs of %qs is PRIVATE at %L", |
d15bac21 JW |
2966 | name, derived->name, where); |
2967 | if (t) | |
524af0d6 | 2968 | *t = false; |
d15bac21 JW |
2969 | } |
2970 | ||
2971 | return res; | |
2972 | } | |
2973 | ||
2974 | /* Otherwise, recurse on parent type if derived is an extension. */ | |
2975 | if (derived->attr.extension) | |
2976 | { | |
2977 | gfc_symbol* super_type; | |
2978 | super_type = gfc_get_derived_super_type (derived); | |
2979 | gcc_assert (super_type); | |
2980 | ||
2981 | return find_typebound_proc_uop (super_type, t, name, | |
2982 | noaccess, uop, where); | |
2983 | } | |
2984 | ||
2985 | /* Nothing found. */ | |
2986 | return NULL; | |
2987 | } | |
2988 | ||
2989 | ||
2990 | /* Find a type-bound procedure or user operator by name for a derived-type | |
2991 | (looking recursively through the super-types). */ | |
2992 | ||
2993 | gfc_symtree* | |
524af0d6 | 2994 | gfc_find_typebound_proc (gfc_symbol* derived, bool* t, |
d15bac21 JW |
2995 | const char* name, bool noaccess, locus* where) |
2996 | { | |
2997 | return find_typebound_proc_uop (derived, t, name, noaccess, false, where); | |
2998 | } | |
2999 | ||
3000 | gfc_symtree* | |
524af0d6 | 3001 | gfc_find_typebound_user_op (gfc_symbol* derived, bool* t, |
d15bac21 JW |
3002 | const char* name, bool noaccess, locus* where) |
3003 | { | |
3004 | return find_typebound_proc_uop (derived, t, name, noaccess, true, where); | |
3005 | } | |
3006 | ||
3007 | ||
3008 | /* Find a type-bound intrinsic operator looking recursively through the | |
3009 | super-type hierarchy. */ | |
3010 | ||
3011 | gfc_typebound_proc* | |
524af0d6 | 3012 | gfc_find_typebound_intrinsic_op (gfc_symbol* derived, bool* t, |
d15bac21 JW |
3013 | gfc_intrinsic_op op, bool noaccess, |
3014 | locus* where) | |
3015 | { | |
3016 | gfc_typebound_proc* res; | |
3017 | ||
3018 | /* Set default to failure. */ | |
3019 | if (t) | |
524af0d6 | 3020 | *t = false; |
d15bac21 JW |
3021 | |
3022 | /* Try to find it in the current type's namespace. */ | |
3023 | if (derived->f2k_derived) | |
3024 | res = derived->f2k_derived->tb_op[op]; | |
8b704316 | 3025 | else |
d15bac21 JW |
3026 | res = NULL; |
3027 | ||
3028 | /* Check access. */ | |
3029 | if (res && !res->error) | |
3030 | { | |
3031 | /* We found one. */ | |
3032 | if (t) | |
524af0d6 | 3033 | *t = true; |
d15bac21 JW |
3034 | |
3035 | if (!noaccess && derived->attr.use_assoc | |
3036 | && res->access == ACCESS_PRIVATE) | |
3037 | { | |
3038 | if (where) | |
c4100eae | 3039 | gfc_error ("%qs of %qs is PRIVATE at %L", |
d15bac21 JW |
3040 | gfc_op2string (op), derived->name, where); |
3041 | if (t) | |
524af0d6 | 3042 | *t = false; |
d15bac21 JW |
3043 | } |
3044 | ||
3045 | return res; | |
3046 | } | |
3047 | ||
3048 | /* Otherwise, recurse on parent type if derived is an extension. */ | |
3049 | if (derived->attr.extension) | |
3050 | { | |
3051 | gfc_symbol* super_type; | |
3052 | super_type = gfc_get_derived_super_type (derived); | |
3053 | gcc_assert (super_type); | |
3054 | ||
3055 | return gfc_find_typebound_intrinsic_op (super_type, t, op, | |
3056 | noaccess, where); | |
3057 | } | |
3058 | ||
3059 | /* Nothing found. */ | |
3060 | return NULL; | |
3061 | } | |
3062 | ||
3063 | ||
3064 | /* Get a typebound-procedure symtree or create and insert it if not yet | |
3065 | present. This is like a very simplified version of gfc_get_sym_tree for | |
3066 | tbp-symtrees rather than regular ones. */ | |
3067 | ||
3068 | gfc_symtree* | |
3069 | gfc_get_tbp_symtree (gfc_symtree **root, const char *name) | |
3070 | { | |
b93d8a3f JW |
3071 | gfc_symtree *result = gfc_find_symtree (*root, name); |
3072 | return result ? result : gfc_new_symtree (root, name); | |
d15bac21 | 3073 | } |