Line data Source code
1 : /* Backend function setup
2 : Copyright (C) 2002-2026 Free Software Foundation, Inc.
3 : Contributed by Paul Brook
4 :
5 : This file is part of GCC.
6 :
7 : GCC is free software; you can redistribute it and/or modify it under
8 : the terms of the GNU General Public License as published by the Free
9 : Software Foundation; either version 3, or (at your option) any later
10 : version.
11 :
12 : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 : WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 : FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 : for more details.
16 :
17 : You should have received a copy of the GNU General Public License
18 : along with GCC; see the file COPYING3. If not see
19 : <http://www.gnu.org/licenses/>. */
20 :
21 : /* trans-decl.cc -- Handling of backend function and variable decls, etc */
22 :
23 : #include "config.h"
24 : #include "system.h"
25 : #include "coretypes.h"
26 : #include "target.h"
27 : #include "function.h"
28 : #include "tree.h"
29 : #include "gfortran.h"
30 : #include "gimple-expr.h" /* For create_tmp_var_raw. */
31 : #include "trans.h"
32 : #include "stringpool.h"
33 : #include "cgraph.h"
34 : #include "fold-const.h"
35 : #include "stor-layout.h"
36 : #include "varasm.h"
37 : #include "attribs.h"
38 : #include "dumpfile.h"
39 : #include "toplev.h" /* For announce_function. */
40 : #include "debug.h"
41 : #include "constructor.h"
42 : #include "trans-types.h"
43 : #include "trans-array.h"
44 : #include "trans-const.h"
45 : /* Only for gfc_trans_code. Shouldn't need to include this. */
46 : #include "trans-stmt.h"
47 : #include "trans-descriptor.h"
48 : #include "gomp-constants.h"
49 : #include "gimplify.h"
50 : #include "context.h"
51 : #include "omp-general.h"
52 : #include "omp-offload.h"
53 : #include "attr-fnspec.h"
54 : #include "tree-iterator.h"
55 : #include "dependency.h"
56 :
57 : #define MAX_LABEL_VALUE 99999
58 :
59 :
60 : /* Holds the result of the function if no result variable specified. */
61 :
62 : static GTY(()) tree current_fake_result_decl;
63 : static GTY(()) tree parent_fake_result_decl;
64 :
65 :
66 : /* Holds the variable DECLs for the current function. */
67 :
68 : static GTY(()) tree saved_function_decls;
69 : static GTY(()) tree saved_parent_function_decls;
70 :
71 : /* Holds the variable DECLs that are locals. */
72 :
73 : static GTY(()) tree saved_local_decls;
74 :
75 : /* The namespace of the module we're currently generating. Only used while
76 : outputting decls for module variables. Do not rely on this being set. */
77 :
78 : static gfc_namespace *module_namespace;
79 :
80 : /* The currently processed procedure symbol. */
81 : static gfc_symbol* current_procedure_symbol = NULL;
82 :
83 : /* The currently processed module. */
84 : static struct module_htab_entry *cur_module;
85 :
86 : /* With -fcoarray=lib: For generating the registering call
87 : of static coarrays. */
88 : static bool has_coarray_vars_or_accessors;
89 : static stmtblock_t caf_init_block;
90 :
91 :
92 : /* List of static constructor functions. */
93 :
94 : tree gfc_static_ctors;
95 :
96 :
97 : /* Whether we've seen a symbol from an IEEE module in the namespace. */
98 : static int seen_ieee_symbol;
99 :
100 : /* Function declarations for builtin library functions. */
101 :
102 : tree gfor_fndecl_pause_numeric;
103 : tree gfor_fndecl_pause_string;
104 : tree gfor_fndecl_stop_numeric;
105 : tree gfor_fndecl_stop_string;
106 : tree gfor_fndecl_error_stop_numeric;
107 : tree gfor_fndecl_error_stop_string;
108 : tree gfor_fndecl_runtime_error;
109 : tree gfor_fndecl_runtime_error_at;
110 : tree gfor_fndecl_runtime_warning_at;
111 : tree gfor_fndecl_os_error_at;
112 : tree gfor_fndecl_generate_error;
113 : tree gfor_fndecl_set_args;
114 : tree gfor_fndecl_set_fpe;
115 : tree gfor_fndecl_set_options;
116 : tree gfor_fndecl_set_convert;
117 : tree gfor_fndecl_set_record_marker;
118 : tree gfor_fndecl_set_max_subrecord_length;
119 : tree gfor_fndecl_ctime;
120 : tree gfor_fndecl_fdate;
121 : tree gfor_fndecl_ttynam;
122 : tree gfor_fndecl_in_pack;
123 : tree gfor_fndecl_in_unpack;
124 : tree gfor_fndecl_in_pack_class;
125 : tree gfor_fndecl_in_unpack_class;
126 : tree gfor_fndecl_associated;
127 : tree gfor_fndecl_system_clock4;
128 : tree gfor_fndecl_system_clock8;
129 : tree gfor_fndecl_ieee_procedure_entry;
130 : tree gfor_fndecl_ieee_procedure_exit;
131 :
132 : /* Coarray run-time library function decls. */
133 : tree gfor_fndecl_caf_init;
134 : tree gfor_fndecl_caf_finalize;
135 : tree gfor_fndecl_caf_this_image;
136 : tree gfor_fndecl_caf_num_images;
137 : tree gfor_fndecl_caf_register;
138 : tree gfor_fndecl_caf_deregister;
139 : tree gfor_fndecl_caf_register_accessor;
140 : tree gfor_fndecl_caf_register_accessors_finish;
141 : tree gfor_fndecl_caf_get_remote_function_index;
142 : tree gfor_fndecl_caf_get_from_remote;
143 : tree gfor_fndecl_caf_send_to_remote;
144 : tree gfor_fndecl_caf_transfer_between_remotes;
145 : tree gfor_fndecl_caf_sync_all;
146 : tree gfor_fndecl_caf_sync_memory;
147 : tree gfor_fndecl_caf_sync_images;
148 : tree gfor_fndecl_caf_stop_str;
149 : tree gfor_fndecl_caf_stop_numeric;
150 : tree gfor_fndecl_caf_error_stop;
151 : tree gfor_fndecl_caf_error_stop_str;
152 : tree gfor_fndecl_caf_atomic_def;
153 : tree gfor_fndecl_caf_atomic_ref;
154 : tree gfor_fndecl_caf_atomic_cas;
155 : tree gfor_fndecl_caf_atomic_op;
156 : tree gfor_fndecl_caf_lock;
157 : tree gfor_fndecl_caf_unlock;
158 : tree gfor_fndecl_caf_event_post;
159 : tree gfor_fndecl_caf_event_wait;
160 : tree gfor_fndecl_caf_event_query;
161 : tree gfor_fndecl_caf_fail_image;
162 : tree gfor_fndecl_caf_failed_images;
163 : tree gfor_fndecl_caf_image_status;
164 : tree gfor_fndecl_caf_stopped_images;
165 : tree gfor_fndecl_caf_form_team;
166 : tree gfor_fndecl_caf_change_team;
167 : tree gfor_fndecl_caf_end_team;
168 : tree gfor_fndecl_caf_sync_team;
169 : tree gfor_fndecl_caf_get_team;
170 : tree gfor_fndecl_caf_team_number;
171 : tree gfor_fndecl_co_broadcast;
172 : tree gfor_fndecl_co_max;
173 : tree gfor_fndecl_co_min;
174 : tree gfor_fndecl_co_reduce;
175 : tree gfor_fndecl_co_sum;
176 : tree gfor_fndecl_caf_is_present_on_remote;
177 : tree gfor_fndecl_caf_random_init;
178 :
179 :
180 : /* Math functions. Many other math functions are handled in
181 : trans-intrinsic.cc. */
182 :
183 : gfc_powdecl_list gfor_fndecl_math_powi[4][3];
184 : tree gfor_fndecl_unsigned_pow_list[5][5];
185 :
186 : tree gfor_fndecl_math_ishftc4;
187 : tree gfor_fndecl_math_ishftc8;
188 : tree gfor_fndecl_math_ishftc16;
189 :
190 :
191 : /* String functions. */
192 :
193 : tree gfor_fndecl_compare_string;
194 : tree gfor_fndecl_concat_string;
195 : tree gfor_fndecl_string_len_trim;
196 : tree gfor_fndecl_string_index;
197 : tree gfor_fndecl_string_scan;
198 : tree gfor_fndecl_string_verify;
199 : tree gfor_fndecl_string_trim;
200 : tree gfor_fndecl_string_minmax;
201 : tree gfor_fndecl_string_split;
202 : tree gfor_fndecl_adjustl;
203 : tree gfor_fndecl_adjustr;
204 : tree gfor_fndecl_select_string;
205 : tree gfor_fndecl_compare_string_char4;
206 : tree gfor_fndecl_concat_string_char4;
207 : tree gfor_fndecl_string_len_trim_char4;
208 : tree gfor_fndecl_string_index_char4;
209 : tree gfor_fndecl_string_scan_char4;
210 : tree gfor_fndecl_string_verify_char4;
211 : tree gfor_fndecl_string_trim_char4;
212 : tree gfor_fndecl_string_minmax_char4;
213 : tree gfor_fndecl_string_split_char4;
214 : tree gfor_fndecl_adjustl_char4;
215 : tree gfor_fndecl_adjustr_char4;
216 : tree gfor_fndecl_select_string_char4;
217 :
218 :
219 : /* Conversion between character kinds. */
220 : tree gfor_fndecl_convert_char1_to_char4;
221 : tree gfor_fndecl_convert_char4_to_char1;
222 :
223 :
224 : /* Other misc. runtime library functions. */
225 : tree gfor_fndecl_iargc;
226 : tree gfor_fndecl_kill;
227 : tree gfor_fndecl_kill_sub;
228 : tree gfor_fndecl_is_contiguous0;
229 : tree gfor_fndecl_fstat_i4_sub;
230 : tree gfor_fndecl_fstat_i8_sub;
231 : tree gfor_fndecl_lstat_i4_sub;
232 : tree gfor_fndecl_lstat_i8_sub;
233 : tree gfor_fndecl_stat_i4_sub;
234 : tree gfor_fndecl_stat_i8_sub;
235 :
236 :
237 : /* Intrinsic functions implemented in Fortran. */
238 : tree gfor_fndecl_sc_kind;
239 : tree gfor_fndecl_si_kind;
240 : tree gfor_fndecl_sl_kind;
241 : tree gfor_fndecl_sr_kind;
242 :
243 : /* BLAS gemm functions. */
244 : tree gfor_fndecl_sgemm;
245 : tree gfor_fndecl_dgemm;
246 : tree gfor_fndecl_cgemm;
247 : tree gfor_fndecl_zgemm;
248 :
249 : /* RANDOM_INIT function. */
250 : tree gfor_fndecl_random_init; /* libgfortran, 1 image only. */
251 :
252 : /* Deep copy helper for recursive allocatable array components. */
253 : tree gfor_fndecl_cfi_deep_copy_array;
254 :
255 : static void
256 5366 : gfc_add_decl_to_parent_function (tree decl)
257 : {
258 5366 : gcc_assert (decl);
259 5366 : DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl);
260 5366 : DECL_NONLOCAL (decl) = 1;
261 5366 : DECL_CHAIN (decl) = saved_parent_function_decls;
262 5366 : saved_parent_function_decls = decl;
263 5366 : }
264 :
265 : void
266 303124 : gfc_add_decl_to_function (tree decl)
267 : {
268 303124 : gcc_assert (decl);
269 303124 : TREE_USED (decl) = 1;
270 303124 : DECL_CONTEXT (decl) = current_function_decl;
271 303124 : DECL_CHAIN (decl) = saved_function_decls;
272 303124 : saved_function_decls = decl;
273 303124 : }
274 :
275 : static void
276 13881 : add_decl_as_local (tree decl)
277 : {
278 13881 : gcc_assert (decl);
279 13881 : TREE_USED (decl) = 1;
280 13881 : DECL_CONTEXT (decl) = current_function_decl;
281 13881 : DECL_CHAIN (decl) = saved_local_decls;
282 13881 : saved_local_decls = decl;
283 13881 : }
284 :
285 :
286 : /* Build a backend label declaration. Set TREE_USED for named labels.
287 : The context of the label is always the current_function_decl. All
288 : labels are marked artificial. */
289 :
290 : tree
291 641039 : gfc_build_label_decl (tree label_id)
292 : {
293 : /* 2^32 temporaries should be enough. */
294 641039 : static unsigned int tmp_num = 1;
295 641039 : tree label_decl;
296 641039 : char *label_name;
297 :
298 641039 : if (label_id == NULL_TREE)
299 : {
300 : /* Build an internal label name. */
301 637464 : ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++);
302 637464 : label_id = get_identifier (label_name);
303 : }
304 : else
305 641039 : label_name = NULL;
306 :
307 : /* Build the LABEL_DECL node. Labels have no type. */
308 641039 : label_decl = build_decl (input_location,
309 : LABEL_DECL, label_id, void_type_node);
310 641039 : DECL_CONTEXT (label_decl) = current_function_decl;
311 641039 : SET_DECL_MODE (label_decl, VOIDmode);
312 :
313 : /* We always define the label as used, even if the original source
314 : file never references the label. We don't want all kinds of
315 : spurious warnings for old-style Fortran code with too many
316 : labels. */
317 641039 : TREE_USED (label_decl) = 1;
318 :
319 641039 : DECL_ARTIFICIAL (label_decl) = 1;
320 641039 : return label_decl;
321 : }
322 :
323 :
324 : /* Set the backend source location of a decl. */
325 :
326 : void
327 184763 : gfc_set_decl_location (tree decl, locus * loc)
328 : {
329 184763 : DECL_SOURCE_LOCATION (decl) = gfc_get_location (loc);
330 184763 : }
331 :
332 :
333 : /* Return the backend label declaration for a given label structure,
334 : or create it if it doesn't exist yet. */
335 :
336 : tree
337 5959 : gfc_get_label_decl (gfc_st_label * lp)
338 : {
339 5959 : if (lp->backend_decl)
340 : return lp->backend_decl;
341 : else
342 : {
343 3575 : char label_name[GFC_MAX_SYMBOL_LEN + 1];
344 3575 : tree label_decl;
345 :
346 : /* Validate the label declaration from the front end. */
347 3575 : gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE);
348 :
349 : /* Build a mangled name for the label. */
350 3575 : if (lp->omp_region)
351 11 : sprintf (label_name, "__label_%d_%.6d", lp->omp_region, lp->value);
352 : else
353 3564 : sprintf (label_name, "__label_%.6d", lp->value);
354 :
355 : /* Build the LABEL_DECL node. */
356 3575 : label_decl = gfc_build_label_decl (get_identifier (label_name));
357 :
358 : /* Tell the debugger where the label came from. */
359 3575 : if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */
360 3575 : gfc_set_decl_location (label_decl, &lp->where);
361 : else
362 0 : DECL_ARTIFICIAL (label_decl) = 1;
363 :
364 : /* Store the label in the label list and return the LABEL_DECL. */
365 3575 : lp->backend_decl = label_decl;
366 3575 : return label_decl;
367 : }
368 : }
369 :
370 : /* Return the name of an identifier. */
371 :
372 : static const char *
373 433542 : sym_identifier (gfc_symbol *sym)
374 : {
375 433542 : if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0)
376 : return "MAIN__";
377 : else
378 429052 : return sym->name;
379 : }
380 :
381 : /* Convert a gfc_symbol to an identifier of the same name. */
382 :
383 : static tree
384 433542 : gfc_sym_identifier (gfc_symbol * sym)
385 : {
386 433542 : return get_identifier (sym_identifier (sym));
387 : }
388 :
389 : /* Construct mangled name from symbol name. */
390 :
391 : static const char *
392 19699 : mangled_identifier (gfc_symbol *sym)
393 : {
394 19699 : gfc_symbol *proc = sym->ns->proc_name;
395 19699 : static char name[3*GFC_MAX_MANGLED_SYMBOL_LEN + 14];
396 : /* Prevent the mangling of identifiers that have an assigned
397 : binding label (mainly those that are bind(c)). */
398 :
399 19699 : if (sym->attr.is_bind_c == 1 && sym->binding_label)
400 : return sym->binding_label;
401 :
402 19573 : if (!sym->fn_result_spec
403 57 : || (sym->module && !(proc && proc->attr.flavor == FL_PROCEDURE)))
404 : {
405 19524 : if (sym->module == NULL)
406 0 : return sym_identifier (sym);
407 : else
408 19524 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
409 : }
410 : else
411 : {
412 : /* This is an entity that is actually local to a module procedure
413 : that appears in the result specification expression. Since
414 : sym->module will be a zero length string, we use ns->proc_name
415 : to provide the module name instead. */
416 49 : if (proc && proc->module)
417 48 : snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s",
418 : proc->module, proc->name, sym->name);
419 : else
420 1 : snprintf (name, sizeof name, "__%s_PROC_%s",
421 : proc->name, sym->name);
422 : }
423 :
424 : return name;
425 : }
426 :
427 : /* Get mangled identifier, adding the symbol to the global table if
428 : it is not yet already there. */
429 :
430 : static tree
431 19550 : gfc_sym_mangled_identifier (gfc_symbol * sym)
432 : {
433 19550 : tree result;
434 19550 : gfc_gsymbol *gsym;
435 19550 : const char *name;
436 :
437 19550 : name = mangled_identifier (sym);
438 19550 : result = get_identifier (name);
439 :
440 19550 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
441 19550 : if (gsym == NULL)
442 : {
443 19367 : gsym = gfc_get_gsymbol (name, false);
444 19367 : gsym->ns = sym->ns;
445 19367 : gsym->sym_name = sym->name;
446 : }
447 :
448 19550 : return result;
449 : }
450 :
451 : /* Construct mangled function name from symbol name. */
452 :
453 : static tree
454 84447 : gfc_sym_mangled_function_id (gfc_symbol * sym)
455 : {
456 84447 : int has_underscore;
457 84447 : char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1];
458 :
459 : /* It may be possible to simply use the binding label if it's
460 : provided, and remove the other checks. Then we could use it
461 : for other things if we wished. */
462 84447 : if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) &&
463 3479 : sym->binding_label)
464 : /* use the binding label rather than the mangled name */
465 3469 : return get_identifier (sym->binding_label);
466 :
467 80978 : if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL
468 28312 : || (sym->module != NULL && (sym->attr.external
469 27071 : || sym->attr.if_source == IFSRC_IFBODY)))
470 53907 : && !sym->attr.module_procedure)
471 : {
472 : /* Main program is mangled into MAIN__. */
473 53471 : if (sym->attr.is_main_program)
474 27106 : return get_identifier ("MAIN__");
475 :
476 : /* Intrinsic procedures are never mangled. */
477 26365 : if (sym->attr.proc == PROC_INTRINSIC)
478 11190 : return get_identifier (sym->name);
479 :
480 15175 : if (flag_underscoring)
481 : {
482 14248 : has_underscore = strchr (sym->name, '_') != 0;
483 14248 : if (flag_second_underscore && has_underscore)
484 201 : snprintf (name, sizeof name, "%s__", sym->name);
485 : else
486 14047 : snprintf (name, sizeof name, "%s_", sym->name);
487 14248 : return get_identifier (name);
488 : }
489 : else
490 927 : return get_identifier (sym->name);
491 : }
492 : else
493 : {
494 27507 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
495 27507 : return get_identifier (name);
496 : }
497 : }
498 :
499 :
500 : void
501 106284 : gfc_set_decl_assembler_name (tree decl, tree name)
502 : {
503 106284 : tree target_mangled = targetm.mangle_decl_assembler_name (decl, name);
504 106284 : SET_DECL_ASSEMBLER_NAME (decl, target_mangled);
505 106284 : }
506 :
507 :
508 : /* Returns true if a variable of specified size should go on the stack. */
509 :
510 : bool
511 173764 : gfc_can_put_var_on_stack (tree size)
512 : {
513 173764 : unsigned HOST_WIDE_INT low;
514 :
515 173764 : if (!INTEGER_CST_P (size))
516 : return 0;
517 :
518 165904 : if (flag_max_stack_var_size < 0)
519 : return 1;
520 :
521 137777 : if (!tree_fits_uhwi_p (size))
522 : return 0;
523 :
524 137777 : low = TREE_INT_CST_LOW (size);
525 137777 : if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size)
526 206 : return 0;
527 :
528 : /* TODO: Set a per-function stack size limit. */
529 :
530 : return 1;
531 : }
532 :
533 :
534 : /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to
535 : an expression involving its corresponding pointer. There are
536 : 2 cases; one for variable size arrays, and one for everything else,
537 : because variable-sized arrays require one fewer level of
538 : indirection. */
539 :
540 : static void
541 288 : gfc_finish_cray_pointee (tree decl, gfc_symbol *sym)
542 : {
543 288 : tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer);
544 288 : tree value;
545 :
546 : /* Parameters need to be dereferenced. */
547 288 : if (sym->cp_pointer->attr.dummy)
548 1 : ptr_decl = build_fold_indirect_ref_loc (input_location,
549 : ptr_decl);
550 :
551 : /* Check to see if we're dealing with a variable-sized array. */
552 288 : if (sym->attr.dimension
553 288 : && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE)
554 : {
555 : /* These decls will be dereferenced later, so we don't dereference
556 : them here. */
557 140 : value = convert (TREE_TYPE (decl), ptr_decl);
558 : }
559 : else
560 : {
561 148 : ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)),
562 : ptr_decl);
563 148 : value = build_fold_indirect_ref_loc (input_location,
564 : ptr_decl);
565 : }
566 :
567 288 : SET_DECL_VALUE_EXPR (decl, value);
568 288 : DECL_HAS_VALUE_EXPR_P (decl) = 1;
569 288 : GFC_DECL_CRAY_POINTEE (decl) = 1;
570 288 : }
571 :
572 :
573 : /* Finish processing of a declaration without an initial value. */
574 :
575 : static void
576 181190 : gfc_finish_decl (tree decl)
577 : {
578 181190 : gcc_assert (TREE_CODE (decl) == PARM_DECL
579 : || DECL_INITIAL (decl) == NULL_TREE);
580 :
581 181190 : if (!VAR_P (decl))
582 : return;
583 :
584 798 : if (DECL_SIZE (decl) == NULL_TREE
585 798 : && COMPLETE_TYPE_P (TREE_TYPE (decl)))
586 0 : layout_decl (decl, 0);
587 :
588 : /* A few consistency checks. */
589 : /* A static variable with an incomplete type is an error if it is
590 : initialized. Also if it is not file scope. Otherwise, let it
591 : through, but if it is not `extern' then it may cause an error
592 : message later. */
593 : /* An automatic variable with an incomplete type is an error. */
594 :
595 : /* We should know the storage size. */
596 798 : gcc_assert (DECL_SIZE (decl) != NULL_TREE
597 : || (TREE_STATIC (decl)
598 : ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl))
599 : : DECL_EXTERNAL (decl)));
600 :
601 : /* The storage size should be constant. */
602 798 : gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl))
603 : || !DECL_SIZE (decl)
604 : || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST);
605 : }
606 :
607 :
608 : /* Handle setting of GFC_DECL_SCALAR* on DECL. */
609 :
610 : void
611 431230 : gfc_finish_decl_attrs (tree decl, symbol_attribute *attr)
612 : {
613 431230 : if (!attr->dimension && !attr->codimension)
614 : {
615 : /* Handle scalar allocatable variables. */
616 340908 : if (attr->allocatable)
617 : {
618 7065 : gfc_allocate_lang_decl (decl);
619 7065 : GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1;
620 : }
621 : /* Handle scalar pointer variables. */
622 340908 : if (attr->pointer)
623 : {
624 41755 : gfc_allocate_lang_decl (decl);
625 41755 : GFC_DECL_SCALAR_POINTER (decl) = 1;
626 : }
627 340908 : if (attr->target)
628 : {
629 25590 : gfc_allocate_lang_decl (decl);
630 25590 : GFC_DECL_SCALAR_TARGET (decl) = 1;
631 : }
632 : }
633 431230 : }
634 :
635 :
636 : /* Apply symbol attributes to a variable, and add it to the function scope. */
637 :
638 : static void
639 191925 : gfc_finish_var_decl (tree decl, gfc_symbol * sym)
640 : {
641 191925 : tree new_type;
642 :
643 : /* Set DECL_VALUE_EXPR for Cray Pointees. */
644 191925 : if (sym->attr.cray_pointee)
645 288 : gfc_finish_cray_pointee (decl, sym);
646 :
647 : /* TREE_ADDRESSABLE means the address of this variable is actually needed.
648 : This is the equivalent of the TARGET variables.
649 : We also need to set this if the variable is passed by reference in a
650 : CALL statement. */
651 191925 : if (sym->attr.target)
652 28132 : TREE_ADDRESSABLE (decl) = 1;
653 :
654 : /* If it wasn't used we wouldn't be getting it. */
655 191925 : TREE_USED (decl) = 1;
656 :
657 191925 : if (sym->attr.flavor == FL_PARAMETER
658 1500 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
659 1483 : TREE_READONLY (decl) = 1;
660 :
661 : /* The front end already warned the user about this decl. Once should be
662 : enough. */
663 191925 : if (sym->attr.warning_emitted)
664 26 : suppress_warning (decl);
665 :
666 : /* Chain this decl to the pending declarations. Don't do pushdecl()
667 : because this would add them to the current scope rather than the
668 : function scope. */
669 191925 : if (current_function_decl != NULL_TREE)
670 : {
671 172565 : if (sym->ns->proc_name
672 172559 : && (sym->ns->proc_name->backend_decl == current_function_decl
673 19105 : || sym->result == sym))
674 153454 : gfc_add_decl_to_function (decl);
675 19111 : else if (sym->ns->omp_affinity_iterators)
676 : {
677 : /* Iterator variables are block-local; other variables in the
678 : iterator namespace (e.g. implicitly typed host-associated
679 : ones used in locator expressions) belong in the enclosing
680 : function. */
681 : gfc_symbol *iter;
682 128 : for (iter = sym->ns->omp_affinity_iterators; iter;
683 18 : iter = iter->tlink)
684 127 : if (iter == sym)
685 : break;
686 110 : if (iter)
687 109 : add_decl_as_local (decl);
688 : else
689 1 : gfc_add_decl_to_function (decl);
690 : }
691 19001 : else if (sym->ns->proc_name
692 18995 : && sym->ns->proc_name->attr.flavor == FL_LABEL)
693 : /* This is a BLOCK construct. */
694 13772 : add_decl_as_local (decl);
695 : else
696 5229 : gfc_add_decl_to_parent_function (decl);
697 : }
698 :
699 191925 : if (sym->attr.cray_pointee)
700 : return;
701 :
702 191637 : if(sym->attr.is_bind_c == 1 && sym->binding_label)
703 : {
704 : /* We need to put variables that are bind(c) into the common
705 : segment of the object file, because this is what C would do.
706 : gfortran would typically put them in either the BSS or
707 : initialized data segments, and only mark them as common if
708 : they were part of common blocks. However, if they are not put
709 : into common space, then C cannot initialize global Fortran
710 : variables that it interoperates with and the draft says that
711 : either Fortran or C should be able to initialize it (but not
712 : both, of course.) (J3/04-007, section 15.3). A binding label has
713 : external linkage, so PRIVATE hides only the Fortran name and must
714 : not restrict the symbol's visibility. */
715 126 : TREE_PUBLIC(decl) = 1;
716 126 : DECL_COMMON(decl) = 1;
717 : }
718 :
719 : /* If a variable is USE associated, it's always external. */
720 191637 : if (sym->attr.use_assoc || sym->attr.used_in_submodule)
721 : {
722 137 : DECL_EXTERNAL (decl) = 1;
723 137 : TREE_PUBLIC (decl) = 1;
724 : }
725 191500 : else if (sym->fn_result_spec && !sym->ns->proc_name->module)
726 : {
727 :
728 1 : if (sym->ns->proc_name->attr.if_source != IFSRC_DECL)
729 0 : DECL_EXTERNAL (decl) = 1;
730 : else
731 1 : TREE_STATIC (decl) = 1;
732 :
733 1 : TREE_PUBLIC (decl) = 1;
734 : }
735 191499 : else if (sym->module && !sym->attr.result && !sym->attr.dummy)
736 : {
737 : /* TODO: Don't set sym->module for result or dummy variables. */
738 19351 : gcc_assert (current_function_decl == NULL_TREE || sym->result == sym);
739 :
740 19351 : TREE_PUBLIC (decl) = 1;
741 19351 : TREE_STATIC (decl) = 1;
742 19351 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used
743 348 : && !sym->binding_label)
744 : {
745 345 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
746 345 : DECL_VISIBILITY_SPECIFIED (decl) = true;
747 : }
748 : }
749 :
750 : /* Derived types are a bit peculiar because of the possibility of
751 : a default initializer; this must be applied each time the variable
752 : comes into scope it therefore need not be static. These variables
753 : are SAVE_NONE but have an initializer. Otherwise explicitly
754 : initialized variables are SAVE_IMPLICIT and explicitly saved are
755 : SAVE_EXPLICIT. */
756 191637 : if (!sym->attr.use_assoc
757 191503 : && (sym->attr.save != SAVE_NONE || sym->attr.data
758 155013 : || (sym->value && sym->ns->proc_name->attr.is_main_program)
759 150364 : || (flag_coarray == GFC_FCOARRAY_LIB
760 2577 : && sym->attr.codimension && !sym->attr.allocatable)))
761 41331 : TREE_STATIC (decl) = 1;
762 :
763 : /* Treat asynchronous variables the same as volatile, for now. */
764 191637 : if (sym->attr.volatile_ || sym->attr.asynchronous)
765 : {
766 782 : TREE_THIS_VOLATILE (decl) = 1;
767 782 : TREE_SIDE_EFFECTS (decl) = 1;
768 782 : new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE);
769 782 : TREE_TYPE (decl) = new_type;
770 : }
771 :
772 : /* Keep variables larger than max-stack-var-size off stack. */
773 191631 : if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive)
774 166425 : && !sym->attr.automatic
775 163336 : && !sym->attr.associate_var
776 154485 : && sym->attr.save != SAVE_EXPLICIT
777 150675 : && sym->attr.save != SAVE_IMPLICIT
778 120051 : && INTEGER_CST_P (DECL_SIZE_UNIT (decl))
779 119630 : && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
780 : /* Put variable length auto array pointers always into stack. */
781 141 : && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE
782 2 : || sym->attr.dimension == 0
783 2 : || sym->as->type != AS_EXPLICIT
784 2 : || sym->attr.pointer
785 2 : || sym->attr.allocatable)
786 191776 : && !DECL_ARTIFICIAL (decl))
787 : {
788 138 : if (flag_max_stack_var_size > 0
789 131 : && !(sym->ns->proc_name
790 131 : && sym->ns->proc_name->attr.is_main_program))
791 32 : gfc_warning (OPT_Wsurprising,
792 : "Array %qs at %L is larger than limit set by "
793 : "%<-fmax-stack-var-size=%>, moved from stack to static "
794 : "storage. This makes the procedure unsafe when called "
795 : "recursively, or concurrently from multiple threads. "
796 : "Consider increasing the %<-fmax-stack-var-size=%> "
797 : "limit (or use %<-frecursive%>, which implies "
798 : "unlimited %<-fmax-stack-var-size%>) - or change the "
799 : "code to use an ALLOCATABLE array. If the variable is "
800 : "never accessed concurrently, this warning can be "
801 : "ignored, and the variable could also be declared with "
802 : "the SAVE attribute.",
803 : sym->name, &sym->declared_at);
804 :
805 138 : TREE_STATIC (decl) = 1;
806 :
807 : /* Because the size of this variable isn't known until now, we may have
808 : greedily added an initializer to this variable (in build_init_assign)
809 : even though the max-stack-var-size indicates the variable should be
810 : static. Therefore we rip out the automatic initializer here and
811 : replace it with a static one. */
812 138 : gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name);
813 138 : gfc_code *prev = NULL;
814 138 : gfc_code *code = sym->ns->code;
815 138 : while (code && code->op == EXEC_INIT_ASSIGN)
816 : {
817 : /* Look for an initializer meant for this symbol. */
818 8 : if (code->expr1->symtree == st)
819 : {
820 8 : if (prev)
821 0 : prev->next = code->next;
822 : else
823 8 : sym->ns->code = code->next;
824 :
825 : break;
826 : }
827 :
828 0 : prev = code;
829 0 : code = code->next;
830 : }
831 138 : if (code && code->op == EXEC_INIT_ASSIGN)
832 : {
833 : /* Keep the init expression for a static initializer. */
834 8 : sym->value = code->expr2;
835 : /* Cleanup the defunct code object, without freeing the init expr. */
836 8 : code->expr2 = NULL;
837 8 : gfc_free_statement (code);
838 8 : free (code);
839 : }
840 : }
841 :
842 191637 : if (sym->attr.omp_allocate && TREE_STATIC (decl))
843 : {
844 9 : struct gfc_omp_namelist *n;
845 35 : for (n = sym->ns->omp_allocate; n; n = n->next)
846 35 : if (n->sym == sym)
847 : break;
848 9 : tree alloc = gfc_conv_constant_to_tree (n->u2.allocator);
849 9 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align)
850 : : NULL_TREE);
851 9 : DECL_ATTRIBUTES (decl)
852 18 : = tree_cons (get_identifier ("omp allocate"),
853 9 : build_tree_list (alloc, align), DECL_ATTRIBUTES (decl));
854 : }
855 :
856 : /* Mark weak variables. */
857 191637 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
858 1 : declare_weak (decl);
859 :
860 : /* Handle threadprivate variables. */
861 191637 : if (sym->attr.threadprivate
862 191637 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
863 151 : set_decl_tls_model (decl, decl_default_tls_model (decl));
864 :
865 191637 : gfc_finish_decl_attrs (decl, &sym->attr);
866 : }
867 :
868 :
869 : /* Allocate the lang-specific part of a decl. */
870 :
871 : void
872 110662 : gfc_allocate_lang_decl (tree decl)
873 : {
874 110662 : if (DECL_LANG_SPECIFIC (decl) == NULL)
875 105111 : DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> ();
876 110662 : }
877 :
878 :
879 : /* Determine order of two symbol declarations. */
880 :
881 : static bool
882 5761 : decl_order (gfc_symbol *sym1, gfc_symbol *sym2)
883 : {
884 5761 : if (sym1->decl_order > sym2->decl_order)
885 : return true;
886 : else
887 0 : return false;
888 : }
889 :
890 :
891 : /* Remember a symbol to generate initialization/cleanup code at function
892 : entry/exit. */
893 :
894 : static void
895 88326 : gfc_defer_symbol_init (gfc_symbol * sym)
896 : {
897 88326 : gfc_symbol *p;
898 88326 : gfc_symbol *last;
899 88326 : gfc_symbol *head;
900 :
901 : /* Don't add a symbol twice. */
902 88326 : if (sym->tlink)
903 : return;
904 :
905 80943 : last = head = sym->ns->proc_name;
906 80943 : p = last->tlink;
907 :
908 80943 : gfc_function_dependency (sym, head);
909 :
910 : /* Make sure that setup code for dummy variables which are used in the
911 : setup of other variables is generated first. */
912 80943 : if (sym->attr.dummy)
913 : {
914 : /* Find the first dummy arg seen after us, or the first non-dummy arg.
915 : This is a circular list, so don't go past the head. */
916 : while (p != head
917 17584 : && (!p->attr.dummy || decl_order (p, sym)))
918 : {
919 3391 : last = p;
920 3391 : p = p->tlink;
921 : }
922 : }
923 66750 : else if (sym->fn_result_dep)
924 : {
925 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
926 : function result (ie. proc_name = proc_name->result), make sure that the
927 : order in the tlink chain is such that the code appears in declaration
928 : order. This ensures that mutual dependencies between these symbols are
929 : respected. */
930 : while (p != head
931 228 : && (!p->attr.result || decl_order (sym, p)))
932 : {
933 162 : last = p;
934 162 : p = p->tlink;
935 : }
936 : }
937 : /* Insert in between last and p. */
938 80943 : last->tlink = sym;
939 80943 : sym->tlink = p;
940 : }
941 :
942 :
943 : /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the
944 : backend_decl for a module symbol, if it all ready exists. If the
945 : module gsymbol does not exist, it is created. If the symbol does
946 : not exist, it is added to the gsymbol namespace. Returns true if
947 : an existing backend_decl is found. */
948 :
949 : bool
950 15011 : gfc_get_module_backend_decl (gfc_symbol *sym)
951 : {
952 15011 : gfc_gsymbol *gsym;
953 15011 : gfc_symbol *s;
954 15011 : gfc_symtree *st;
955 :
956 15011 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
957 :
958 15011 : if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE))
959 : {
960 15011 : st = NULL;
961 15011 : s = NULL;
962 :
963 : /* Check for a symbol with the same name. */
964 390 : if (gsym)
965 14621 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
966 :
967 15011 : if (!s)
968 : {
969 630 : if (!gsym)
970 : {
971 390 : gsym = gfc_get_gsymbol (sym->module, false);
972 390 : gsym->type = GSYM_MODULE;
973 390 : gsym->ns = gfc_get_namespace (NULL, 0);
974 : }
975 :
976 630 : st = gfc_new_symtree (&gsym->ns->sym_root, sym->name);
977 630 : st->n.sym = sym;
978 630 : sym->refs++;
979 : }
980 14381 : else if (gfc_fl_struct (sym->attr.flavor))
981 : {
982 11460 : if (s && s->attr.flavor == FL_PROCEDURE)
983 : {
984 6162 : gfc_interface *intr;
985 6162 : gcc_assert (s->attr.generic);
986 6307 : for (intr = s->generic; intr; intr = intr->next)
987 6307 : if (gfc_fl_struct (intr->sym->attr.flavor))
988 : {
989 6162 : s = intr->sym;
990 6162 : break;
991 : }
992 : }
993 :
994 : /* Normally we can assume that s is a derived-type symbol since it
995 : shares a name with the derived-type sym. However if sym is a
996 : STRUCTURE, it may in fact share a name with any other basic type
997 : variable. If s is in fact of derived type then we can continue
998 : looking for a duplicate type declaration. */
999 11460 : if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED)
1000 : {
1001 0 : s = s->ts.u.derived;
1002 : }
1003 :
1004 11460 : if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl)
1005 : {
1006 25 : if (s->attr.flavor == FL_UNION)
1007 0 : s->backend_decl = gfc_get_union_type (s);
1008 : else
1009 25 : s->backend_decl = gfc_get_derived_type (s);
1010 : }
1011 11460 : gfc_copy_dt_decls_ifequal (s, sym, true);
1012 11460 : return true;
1013 : }
1014 2921 : else if (s->backend_decl)
1015 : {
1016 2909 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1017 568 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
1018 : true);
1019 2341 : else if (sym->ts.type == BT_CHARACTER)
1020 324 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
1021 2909 : sym->backend_decl = s->backend_decl;
1022 2909 : return true;
1023 : }
1024 : }
1025 : return false;
1026 : }
1027 :
1028 :
1029 : /* Create an array index type variable with function scope. */
1030 :
1031 : static tree
1032 48884 : create_index_var (const char * pfx, int nest)
1033 : {
1034 48884 : tree decl;
1035 :
1036 48884 : decl = gfc_create_var_np (gfc_array_index_type, pfx);
1037 48884 : if (nest)
1038 52 : gfc_add_decl_to_parent_function (decl);
1039 : else
1040 48832 : gfc_add_decl_to_function (decl);
1041 48884 : return decl;
1042 : }
1043 :
1044 :
1045 : /* Create variables to hold all the non-constant bits of info for a
1046 : descriptorless array. Remember these in the lang-specific part of the
1047 : type. */
1048 :
1049 : static void
1050 65199 : gfc_build_qualified_array (tree decl, gfc_symbol * sym)
1051 : {
1052 65199 : tree type;
1053 65199 : int dim;
1054 65199 : int nest;
1055 65199 : gfc_namespace* procns;
1056 65199 : symbol_attribute *array_attr;
1057 65199 : gfc_array_spec *as;
1058 65199 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1059 :
1060 65199 : type = TREE_TYPE (decl);
1061 65199 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1062 65199 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1063 :
1064 : /* We just use the descriptor, if there is one. */
1065 65199 : if (GFC_DESCRIPTOR_TYPE_P (type))
1066 : return;
1067 :
1068 49101 : gcc_assert (GFC_ARRAY_TYPE_P (type));
1069 49101 : procns = gfc_find_proc_namespace (sym->ns);
1070 98202 : nest = (procns->proc_name->backend_decl != current_function_decl)
1071 49101 : && !sym->attr.contained;
1072 :
1073 889 : if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB
1074 564 : && as->type != AS_ASSUMED_SHAPE
1075 49642 : && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE)
1076 : {
1077 541 : tree token;
1078 541 : tree token_type = build_qualified_type (pvoid_type_node,
1079 : TYPE_QUAL_RESTRICT);
1080 :
1081 541 : if (sym->module && (sym->attr.use_assoc
1082 28 : || sym->ns->proc_name->attr.flavor == FL_MODULE))
1083 : {
1084 33 : tree token_name
1085 33 : = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"),
1086 : IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym))));
1087 33 : token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name,
1088 : token_type);
1089 33 : if (sym->attr.use_assoc
1090 28 : || (sym->attr.host_assoc && sym->attr.used_in_submodule))
1091 7 : DECL_EXTERNAL (token) = 1;
1092 : else
1093 26 : TREE_STATIC (token) = 1;
1094 :
1095 33 : TREE_PUBLIC (token) = 1;
1096 :
1097 33 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
1098 : {
1099 0 : DECL_VISIBILITY (token) = VISIBILITY_HIDDEN;
1100 0 : DECL_VISIBILITY_SPECIFIED (token) = true;
1101 : }
1102 : }
1103 : else
1104 : {
1105 508 : token = gfc_create_var_np (token_type, "caf_token");
1106 508 : TREE_STATIC (token) = 1;
1107 : }
1108 :
1109 541 : GFC_TYPE_ARRAY_CAF_TOKEN (type) = token;
1110 541 : DECL_ARTIFICIAL (token) = 1;
1111 541 : DECL_NONALIASED (token) = 1;
1112 :
1113 541 : if (sym->module && !sym->attr.use_assoc)
1114 : {
1115 28 : module_htab_entry *mod
1116 28 : = cur_module ? cur_module : gfc_find_module (sym->module);
1117 28 : pushdecl (token);
1118 28 : DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl;
1119 28 : gfc_module_add_decl (mod, token);
1120 28 : }
1121 513 : else if (sym->attr.host_assoc
1122 513 : && TREE_CODE (DECL_CONTEXT (current_function_decl))
1123 : != TRANSLATION_UNIT_DECL)
1124 3 : gfc_add_decl_to_parent_function (token);
1125 : else
1126 510 : gfc_add_decl_to_function (token);
1127 : }
1128 :
1129 116530 : for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++)
1130 : {
1131 67429 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1132 : {
1133 521 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1134 521 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1135 : }
1136 : /* Don't try to use the unknown bound for assumed shape arrays. */
1137 67429 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1138 67429 : && (as->type != AS_ASSUMED_SIZE
1139 2137 : || dim < GFC_TYPE_ARRAY_RANK (type) - 1))
1140 : {
1141 19805 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1142 19805 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1143 : }
1144 :
1145 67429 : if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE)
1146 : {
1147 11820 : GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest);
1148 11820 : suppress_warning (GFC_TYPE_ARRAY_STRIDE (type, dim));
1149 : }
1150 : }
1151 50267 : for (dim = GFC_TYPE_ARRAY_RANK (type);
1152 50267 : dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++)
1153 : {
1154 1166 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1155 : {
1156 114 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1157 114 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1158 : }
1159 : /* Don't try to use the unknown ubound for the last coarray dimension. */
1160 1166 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1161 1166 : && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1)
1162 : {
1163 60 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1164 60 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1165 : }
1166 : }
1167 49101 : if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE)
1168 : {
1169 9167 : GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type,
1170 : "offset");
1171 9167 : suppress_warning (GFC_TYPE_ARRAY_OFFSET (type));
1172 :
1173 9167 : if (nest)
1174 14 : gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type));
1175 : else
1176 9153 : gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type));
1177 : }
1178 :
1179 67290 : if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE && as->rank != 0
1180 67249 : && as->type != AS_ASSUMED_SIZE)
1181 : {
1182 16408 : GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest);
1183 16408 : suppress_warning (GFC_TYPE_ARRAY_SIZE (type));
1184 : }
1185 :
1186 49101 : if (POINTER_TYPE_P (type))
1187 : {
1188 21850 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type)));
1189 21850 : gcc_assert (TYPE_LANG_SPECIFIC (type)
1190 : == TYPE_LANG_SPECIFIC (TREE_TYPE (type)));
1191 21850 : type = TREE_TYPE (type);
1192 : }
1193 :
1194 49101 : if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type))
1195 : {
1196 16408 : tree size, range;
1197 :
1198 49224 : size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
1199 16408 : GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node);
1200 16408 : range = build_range_type (gfc_array_index_type, gfc_index_zero_node,
1201 : size);
1202 16408 : TYPE_DOMAIN (type) = range;
1203 16408 : layout_type (type);
1204 : }
1205 :
1206 88982 : if (TYPE_NAME (type) != NULL_TREE && as->rank > 0
1207 39392 : && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE
1208 87141 : && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1)))
1209 : {
1210 7629 : tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type));
1211 :
1212 8017 : for (dim = 0; dim < as->rank - 1; dim++)
1213 : {
1214 388 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1215 388 : gtype = TREE_TYPE (gtype);
1216 : }
1217 7629 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1218 7629 : if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL)
1219 7629 : TYPE_NAME (type) = NULL_TREE;
1220 : }
1221 :
1222 49101 : if (TYPE_NAME (type) == NULL_TREE)
1223 : {
1224 16849 : tree gtype = TREE_TYPE (type), rtype, type_decl;
1225 :
1226 38600 : for (dim = as->rank - 1; dim >= 0; dim--)
1227 : {
1228 21751 : tree lbound, ubound;
1229 21751 : lbound = GFC_TYPE_ARRAY_LBOUND (type, dim);
1230 21751 : ubound = GFC_TYPE_ARRAY_UBOUND (type, dim);
1231 21751 : rtype = build_range_type (gfc_array_index_type, lbound, ubound);
1232 21751 : gtype = build_array_type (gtype, rtype);
1233 : /* Ensure the bound variables aren't optimized out at -O0.
1234 : For -O1 and above they often will be optimized out, but
1235 : can be tracked by VTA. Also set DECL_NAMELESS, so that
1236 : the artificial lbound.N or ubound.N DECL_NAME doesn't
1237 : end up in debug info. */
1238 21751 : if (lbound
1239 21751 : && VAR_P (lbound)
1240 521 : && DECL_ARTIFICIAL (lbound)
1241 22272 : && DECL_IGNORED_P (lbound))
1242 : {
1243 521 : if (DECL_NAME (lbound)
1244 521 : && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)),
1245 : "lbound") != 0)
1246 521 : DECL_NAMELESS (lbound) = 1;
1247 521 : DECL_IGNORED_P (lbound) = 0;
1248 : }
1249 21751 : if (ubound
1250 21363 : && VAR_P (ubound)
1251 19805 : && DECL_ARTIFICIAL (ubound)
1252 41556 : && DECL_IGNORED_P (ubound))
1253 : {
1254 19805 : if (DECL_NAME (ubound)
1255 19805 : && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)),
1256 : "ubound") != 0)
1257 19805 : DECL_NAMELESS (ubound) = 1;
1258 19805 : DECL_IGNORED_P (ubound) = 0;
1259 : }
1260 : }
1261 16849 : TYPE_NAME (type) = type_decl = build_decl (input_location,
1262 : TYPE_DECL, NULL, gtype);
1263 16849 : DECL_ORIGINAL_TYPE (type_decl) = gtype;
1264 : }
1265 : }
1266 :
1267 :
1268 : /* For some dummy arguments we don't use the actual argument directly.
1269 : Instead we create a local decl and use that. This allows us to perform
1270 : initialization, and construct full type information. */
1271 :
1272 : static tree
1273 26211 : gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy)
1274 : {
1275 26211 : tree decl;
1276 26211 : tree type;
1277 26211 : gfc_array_spec *as;
1278 26211 : symbol_attribute *array_attr;
1279 26211 : char *name;
1280 26211 : gfc_packed packed;
1281 26211 : int n;
1282 26211 : bool known_size;
1283 26211 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1284 :
1285 : /* Use the array as and attr. */
1286 26211 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1287 26211 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1288 :
1289 : /* The dummy is returned for pointer, allocatable or assumed rank arrays.
1290 : For class arrays the information if sym is an allocatable or pointer
1291 : object needs to be checked explicitly (IS_CLASS_ARRAY can be false for
1292 : too many reasons to be of use here). */
1293 26211 : if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
1294 24251 : || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer)
1295 24251 : || array_attr->allocatable
1296 19026 : || (as && as->type == AS_ASSUMED_RANK))
1297 : return dummy;
1298 :
1299 : /* Add to list of variables if not a fake result variable.
1300 : These symbols are set on the symbol only, not on the class component. */
1301 14878 : if (sym->attr.result || sym->attr.dummy)
1302 14274 : gfc_defer_symbol_init (sym);
1303 :
1304 : /* For a class array the array descriptor is in the _data component, while
1305 : for a regular array the TREE_TYPE of the dummy is a pointer to the
1306 : descriptor. */
1307 14878 : type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy)
1308 : : TREE_TYPE (dummy));
1309 : /* type now is the array descriptor w/o any indirection. */
1310 14878 : gcc_assert (TREE_CODE (dummy) == PARM_DECL
1311 : && POINTER_TYPE_P (TREE_TYPE (dummy)));
1312 :
1313 : /* Do we know the element size? */
1314 14878 : known_size = sym->ts.type != BT_CHARACTER
1315 14878 : || INTEGER_CST_P (sym->ts.u.cl->backend_decl);
1316 :
1317 13956 : if (known_size && !GFC_DESCRIPTOR_TYPE_P (type))
1318 : {
1319 : /* For descriptorless arrays with known element size the actual
1320 : argument is sufficient. */
1321 6886 : gfc_build_qualified_array (dummy, sym);
1322 6886 : return dummy;
1323 : }
1324 :
1325 7992 : if (GFC_DESCRIPTOR_TYPE_P (type))
1326 : {
1327 : /* Create a descriptorless array pointer. */
1328 7617 : packed = PACKED_NO;
1329 :
1330 : /* Even when -frepack-arrays is used, symbols with TARGET attribute
1331 : are not repacked. */
1332 7617 : if (!flag_repack_arrays || sym->attr.target)
1333 : {
1334 7615 : if (as->type == AS_ASSUMED_SIZE)
1335 79 : packed = PACKED_FULL;
1336 : }
1337 : else
1338 : {
1339 2 : if (as->type == AS_EXPLICIT)
1340 : {
1341 3 : packed = PACKED_FULL;
1342 3 : for (n = 0; n < as->rank; n++)
1343 : {
1344 2 : if (!(as->upper[n]
1345 2 : && as->lower[n]
1346 2 : && as->upper[n]->expr_type == EXPR_CONSTANT
1347 2 : && as->lower[n]->expr_type == EXPR_CONSTANT))
1348 : {
1349 : packed = PACKED_PARTIAL;
1350 : break;
1351 : }
1352 : }
1353 : }
1354 : else
1355 : packed = PACKED_PARTIAL;
1356 : }
1357 :
1358 : /* For classarrays the element type is required, but
1359 : gfc_typenode_for_spec () returns the array descriptor. */
1360 7617 : type = is_classarray ? gfc_get_element_type (type)
1361 6653 : : gfc_typenode_for_spec (&sym->ts);
1362 7617 : type = gfc_get_nodesc_array_type (type, as, packed,
1363 7617 : !sym->attr.target);
1364 : }
1365 : else
1366 : {
1367 : /* We now have an expression for the element size, so create a fully
1368 : qualified type. Reset sym->backend decl or this will just return the
1369 : old type. */
1370 375 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1371 375 : sym->backend_decl = NULL_TREE;
1372 375 : type = gfc_sym_type (sym);
1373 375 : packed = PACKED_FULL;
1374 : }
1375 :
1376 7992 : ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0);
1377 7992 : decl = build_decl (input_location,
1378 : VAR_DECL, get_identifier (name), type);
1379 :
1380 7992 : DECL_ARTIFICIAL (decl) = 1;
1381 7992 : DECL_NAMELESS (decl) = 1;
1382 7992 : TREE_PUBLIC (decl) = 0;
1383 7992 : TREE_STATIC (decl) = 0;
1384 7992 : DECL_EXTERNAL (decl) = 0;
1385 :
1386 : /* Avoid uninitialized warnings for optional dummy arguments. */
1387 7992 : if ((sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.optional)
1388 7992 : || sym->attr.optional)
1389 870 : suppress_warning (decl);
1390 :
1391 : /* We should never get deferred shape arrays here. We used to because of
1392 : frontend bugs. */
1393 7992 : gcc_assert (as->type != AS_DEFERRED);
1394 :
1395 7992 : if (packed == PACKED_PARTIAL)
1396 1 : GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1;
1397 7991 : else if (packed == PACKED_FULL)
1398 454 : GFC_DECL_PACKED_ARRAY (decl) = 1;
1399 :
1400 7992 : gfc_build_qualified_array (decl, sym);
1401 :
1402 7992 : if (DECL_LANG_SPECIFIC (dummy))
1403 1048 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy);
1404 : else
1405 6944 : gfc_allocate_lang_decl (decl);
1406 :
1407 7992 : GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy;
1408 :
1409 15984 : bool in_parent_function
1410 7992 : = sym->ns->proc_name->backend_decl != current_function_decl
1411 7992 : && !sym->attr.contained;
1412 :
1413 : /* The elements of the actual argument can be spaced by more than the
1414 : element size, in which case they are addressed by the span of the
1415 : descriptor. Create the variable holding it here, since the body is
1416 : translated before gfc_trans_dummy_array_bias loads it. */
1417 7992 : if (packed == PACKED_NO)
1418 : {
1419 7537 : if (gfc_span_folds_into_stride (sym))
1420 451 : GFC_DECL_SPAN_NORMALIZED (decl) = 1;
1421 7086 : else if (gfc_is_span_addressed_dummy (sym))
1422 : {
1423 156 : GFC_DECL_PTR_ARRAY_P (decl) = 1;
1424 156 : GFC_DECL_SPAN (decl) = create_index_var ("span", in_parent_function);
1425 : }
1426 : }
1427 :
1428 7992 : if (in_parent_function)
1429 14 : gfc_add_decl_to_parent_function (decl);
1430 : else
1431 7978 : gfc_add_decl_to_function (decl);
1432 :
1433 : return decl;
1434 : }
1435 :
1436 : /* Return a constant or a variable to use as a string length. Does not
1437 : add the decl to the current scope. */
1438 :
1439 : static tree
1440 16371 : gfc_create_string_length (gfc_symbol * sym)
1441 : {
1442 16371 : gcc_assert (sym->ts.u.cl);
1443 16371 : gfc_conv_const_charlen (sym->ts.u.cl);
1444 :
1445 16371 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1446 : {
1447 3689 : tree length;
1448 3689 : const char *name;
1449 :
1450 : /* The string length variable shall be in static memory if it is either
1451 : explicitly SAVED, a module variable or with -fno-automatic. Only
1452 : relevant is "len=:" - otherwise, it is either a constant length or
1453 : it is an automatic variable. */
1454 7378 : bool static_length = sym->attr.save
1455 3488 : || sym->ns->proc_name->attr.flavor == FL_MODULE
1456 7177 : || (flag_max_stack_var_size == 0
1457 2 : && sym->ts.deferred && !sym->attr.dummy
1458 0 : && !sym->attr.result && !sym->attr.function);
1459 :
1460 : /* Also prefix the mangled name. We need to call GFC_PREFIX for static
1461 : variables as some systems do not support the "." in the assembler name.
1462 : For nonstatic variables, the "." does not appear in assembler. */
1463 3488 : if (static_length)
1464 : {
1465 201 : if (sym->module)
1466 54 : name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module,
1467 : sym->name);
1468 : else
1469 147 : name = gfc_get_string (GFC_PREFIX ("%s"), sym->name);
1470 : }
1471 3488 : else if (sym->module)
1472 0 : name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name);
1473 : else
1474 3488 : name = gfc_get_string (".%s", sym->name);
1475 :
1476 3689 : length = build_decl (input_location,
1477 : VAR_DECL, get_identifier (name),
1478 : gfc_charlen_type_node);
1479 3689 : DECL_ARTIFICIAL (length) = 1;
1480 3689 : TREE_USED (length) = 1;
1481 3689 : if (sym->ns->proc_name->tlink != NULL)
1482 3414 : gfc_defer_symbol_init (sym);
1483 :
1484 3689 : sym->ts.u.cl->backend_decl = length;
1485 :
1486 3689 : if (static_length)
1487 201 : TREE_STATIC (length) = 1;
1488 :
1489 3689 : if (sym->ns->proc_name->attr.flavor == FL_MODULE
1490 54 : && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used))
1491 54 : TREE_PUBLIC (length) = 1;
1492 : }
1493 :
1494 16371 : gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE);
1495 16371 : return sym->ts.u.cl->backend_decl;
1496 : }
1497 :
1498 : /* If a variable is assigned a label, we add another two auxiliary
1499 : variables. */
1500 :
1501 : static void
1502 66 : gfc_add_assign_aux_vars (gfc_symbol * sym)
1503 : {
1504 66 : tree addr;
1505 66 : tree length;
1506 66 : tree decl;
1507 :
1508 66 : gcc_assert (sym->backend_decl);
1509 :
1510 66 : decl = sym->backend_decl;
1511 66 : gfc_allocate_lang_decl (decl);
1512 66 : GFC_DECL_ASSIGN (decl) = 1;
1513 66 : length = build_decl (input_location,
1514 : VAR_DECL, create_tmp_var_name (sym->name),
1515 : gfc_charlen_type_node);
1516 66 : addr = build_decl (input_location,
1517 : VAR_DECL, create_tmp_var_name (sym->name),
1518 : pvoid_type_node);
1519 66 : gfc_finish_var_decl (length, sym);
1520 66 : gfc_finish_var_decl (addr, sym);
1521 : /* STRING_LENGTH is also used as flag. Less than -1 means that
1522 : ASSIGN_ADDR cannot be used. Equal -1 means that ASSIGN_ADDR is the
1523 : target label's address. Otherwise, value is the length of a format string
1524 : and ASSIGN_ADDR is its address. */
1525 66 : if (TREE_STATIC (length))
1526 1 : DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2);
1527 : else
1528 65 : gfc_defer_symbol_init (sym);
1529 :
1530 66 : GFC_DECL_STRING_LEN (decl) = length;
1531 66 : GFC_DECL_ASSIGN_ADDR (decl) = addr;
1532 66 : }
1533 :
1534 :
1535 : static void
1536 298789 : add_attributes_to_decl (tree *decl_p, const gfc_symbol *sym)
1537 : {
1538 298789 : unsigned id;
1539 298789 : tree list = NULL_TREE;
1540 298789 : symbol_attribute sym_attr = sym->attr;
1541 :
1542 3884257 : for (id = 0; id < EXT_ATTR_NUM; id++)
1543 3585468 : if (sym_attr.ext_attr & (1 << id) && ext_attr_list[id].middle_end_name)
1544 : {
1545 0 : tree ident = get_identifier (ext_attr_list[id].middle_end_name);
1546 0 : list = tree_cons (ident, NULL_TREE, list);
1547 : }
1548 :
1549 298789 : tree clauses = NULL_TREE;
1550 :
1551 298789 : if (sym_attr.oacc_routine_lop != OACC_ROUTINE_LOP_NONE)
1552 : {
1553 355 : omp_clause_code code;
1554 355 : switch (sym_attr.oacc_routine_lop)
1555 : {
1556 : case OACC_ROUTINE_LOP_GANG:
1557 : code = OMP_CLAUSE_GANG;
1558 : break;
1559 : case OACC_ROUTINE_LOP_WORKER:
1560 : code = OMP_CLAUSE_WORKER;
1561 : break;
1562 : case OACC_ROUTINE_LOP_VECTOR:
1563 : code = OMP_CLAUSE_VECTOR;
1564 : break;
1565 : case OACC_ROUTINE_LOP_SEQ:
1566 : code = OMP_CLAUSE_SEQ;
1567 : break;
1568 0 : case OACC_ROUTINE_LOP_NONE:
1569 0 : case OACC_ROUTINE_LOP_ERROR:
1570 0 : default:
1571 0 : gcc_unreachable ();
1572 : }
1573 355 : tree c = build_omp_clause (UNKNOWN_LOCATION, code);
1574 355 : OMP_CLAUSE_CHAIN (c) = clauses;
1575 355 : clauses = c;
1576 :
1577 355 : tree dims = oacc_build_routine_dims (clauses);
1578 355 : list = oacc_replace_fn_attrib_attr (list, dims);
1579 : }
1580 :
1581 298789 : if (sym_attr.oacc_routine_nohost)
1582 : {
1583 40 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_NOHOST);
1584 40 : OMP_CLAUSE_CHAIN (c) = clauses;
1585 40 : clauses = c;
1586 : }
1587 :
1588 298789 : if (sym_attr.omp_groupprivate)
1589 6 : list = tree_cons (get_identifier ("omp groupprivate"), NULL_TREE, list);
1590 :
1591 298789 : tree arg_list = NULL_TREE;
1592 298789 : if (sym_attr.omp_device_type != OMP_DEVICE_TYPE_UNSET
1593 420 : && !sym_attr.omp_declare_target_link
1594 412 : && !sym_attr.omp_declare_target_indirect)
1595 : {
1596 366 : const char *arg_str = NULL;
1597 366 : switch (sym_attr.omp_device_type)
1598 : {
1599 : case OMP_DEVICE_TYPE_HOST:
1600 : arg_str = "device_type(host)";
1601 : break;
1602 4 : case OMP_DEVICE_TYPE_NOHOST:
1603 4 : arg_str = "device_type(nohost)";
1604 4 : break;
1605 357 : case OMP_DEVICE_TYPE_ANY:
1606 357 : arg_str = "device_type(any)";
1607 357 : break;
1608 0 : default:
1609 0 : gcc_unreachable ();
1610 : }
1611 366 : arg_list = tree_cons (NULL_TREE, get_identifier (arg_str), arg_list);
1612 : }
1613 :
1614 298789 : bool has_declare = true;
1615 :
1616 298789 : if (flag_openmp)
1617 : {
1618 34298 : if (sym_attr.omp_declare_target_link)
1619 8 : list = tree_cons (get_identifier ("omp declare target link"),
1620 : arg_list, list);
1621 34290 : else if (sym_attr.omp_declare_target)
1622 529 : list = tree_cons (get_identifier ("omp declare target"),
1623 : arg_list, list);
1624 33761 : else if (sym_attr.omp_declare_target_local)
1625 : {
1626 : /* The OpenMP local clause is encoded as an identifier in the
1627 : TREE_VALUE of the attribute, itself as a TREE_LIST. This is because
1628 : local has very similar handling to normal "enter", just not added
1629 : to offload_vars. */
1630 6 : arg_list = tree_cons (NULL_TREE, get_identifier ("local"), arg_list);
1631 6 : list = tree_cons (get_identifier ("omp declare target"),
1632 : arg_list, list);
1633 : }
1634 : else
1635 : has_declare = false;
1636 : }
1637 264491 : else if (flag_openacc)
1638 : {
1639 : /* OpenACC has the routine clause list saved in TREE_VALUE of attribute.
1640 : This appears consistent with C/C++. Whether OpenMP/OpenACC handling
1641 : should be further unified is TBD. */
1642 11891 : if (sym_attr.oacc_declare_link)
1643 1 : list = tree_cons (get_identifier ("omp declare target link"),
1644 : clauses, list);
1645 11890 : else if (sym_attr.omp_declare_target
1646 11535 : || sym_attr.oacc_declare_create
1647 11492 : || sym_attr.oacc_declare_copyin
1648 11482 : || sym_attr.oacc_declare_deviceptr
1649 11482 : || sym_attr.oacc_declare_device_resident)
1650 424 : list = tree_cons (get_identifier ("omp declare target"),
1651 : clauses, list);
1652 : else
1653 : has_declare = false;
1654 : }
1655 : else
1656 : has_declare = false;
1657 :
1658 298789 : if (sym_attr.omp_declare_target_indirect)
1659 46 : list = tree_cons (get_identifier ("omp declare target indirect"),
1660 : clauses, list);
1661 :
1662 298789 : decl_attributes (decl_p, list, 0);
1663 :
1664 298789 : if (has_declare
1665 968 : && VAR_P (*decl_p)
1666 421 : && sym->ns->proc_name->attr.flavor != FL_MODULE)
1667 : {
1668 150 : has_declare = false;
1669 618 : for (gfc_namespace* ns = sym->ns->contained; ns; ns = ns->sibling)
1670 471 : if (ns->proc_name->attr.omp_declare_target)
1671 : {
1672 : has_declare = true;
1673 : break;
1674 : }
1675 : }
1676 :
1677 968 : if (has_declare && VAR_P (*decl_p) && has_declare)
1678 : {
1679 : /* Add to offload_vars; get_create does so for omp_declare_target,
1680 : omp_declare_target_link requires manual work. */
1681 274 : gcc_assert (symtab_node::get (*decl_p) == 0);
1682 274 : symtab_node *node = symtab_node::get_create (*decl_p);
1683 274 : if (node != NULL && sym_attr.omp_declare_target_link)
1684 : {
1685 8 : node->offloadable = 1;
1686 8 : if (ENABLE_OFFLOADING)
1687 : {
1688 : g->have_offload = true;
1689 : if (is_a <varpool_node *> (node))
1690 : vec_safe_push (offload_vars, *decl_p);
1691 : }
1692 : }
1693 : }
1694 298789 : }
1695 :
1696 :
1697 : static void build_function_decl (gfc_symbol * sym, bool global);
1698 :
1699 :
1700 : /* Return the decl for a gfc_symbol, create it if it doesn't already
1701 : exist. */
1702 :
1703 : tree
1704 1891111 : gfc_get_symbol_decl (gfc_symbol * sym)
1705 : {
1706 1891111 : tree decl;
1707 1891111 : tree length = NULL_TREE;
1708 1891111 : int byref;
1709 1891111 : bool intrinsic_array_parameter = false;
1710 1891111 : bool fun_or_res;
1711 :
1712 1891111 : gcc_assert (sym->attr.referenced
1713 : || sym->attr.flavor == FL_PROCEDURE
1714 : || sym->attr.use_assoc
1715 : || sym->attr.used_in_submodule
1716 : || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY
1717 : || (sym->module && sym->attr.if_source != IFSRC_DECL
1718 : && sym->backend_decl));
1719 :
1720 339498 : if (sym->attr.dummy && sym->ns->proc_name->attr.is_bind_c
1721 1915094 : && is_CFI_desc (sym, NULL))
1722 : {
1723 15489 : gcc_assert (sym->backend_decl && (sym->ts.type != BT_CHARACTER
1724 : || sym->ts.u.cl->backend_decl));
1725 : return sym->backend_decl;
1726 : }
1727 :
1728 1875622 : if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function)
1729 244812 : byref = gfc_return_by_reference (sym->ns->proc_name);
1730 : else
1731 : byref = 0;
1732 :
1733 : /* Make sure that the vtab for the declared type is completed. */
1734 1875622 : if (sym->ts.type == BT_CLASS)
1735 : {
1736 90661 : gfc_component *c = CLASS_DATA (sym);
1737 90661 : if (!c->ts.u.derived->backend_decl)
1738 : {
1739 2614 : gfc_find_derived_vtab (c->ts.u.derived);
1740 2614 : gfc_get_derived_type (sym->ts.u.derived);
1741 : }
1742 : }
1743 :
1744 : /* PDT parameterized array components and string_lengths must have the
1745 : 'len' parameters substituted for the expressions appearing in the
1746 : declaration of the entity and memory allocated/deallocated. */
1747 1875622 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1748 342200 : && sym->param_list != NULL
1749 6368 : && (gfc_current_ns == sym->ns
1750 1039 : || (gfc_current_ns == sym->ns->parent
1751 972 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1752 5858 : && !(sym->attr.use_assoc || sym->attr.result
1753 5454 : || (sym->attr.dummy && sym->attr.intent != INTENT_OUT)))
1754 4729 : gfc_defer_symbol_init (sym);
1755 :
1756 1875622 : if ((sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_comp)
1757 68 : && (gfc_current_ns == sym->ns
1758 10 : || (gfc_current_ns == sym->ns->parent
1759 9 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1760 58 : && !(sym->attr.use_assoc || sym->attr.dummy || sym->attr.result))
1761 48 : gfc_defer_symbol_init (sym);
1762 :
1763 : /* Dummy PDT 'len' parameters should be checked when they are explicit. */
1764 1875622 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1765 342200 : && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
1766 11516 : && sym->param_list != NULL
1767 454 : && sym->attr.dummy)
1768 189 : gfc_defer_symbol_init (sym);
1769 :
1770 : /* All deferred character length procedures need to retain the backend
1771 : decl, which is a pointer to the character length in the caller's
1772 : namespace and to declare a local character length. */
1773 1875622 : if (!byref && sym->attr.function
1774 20073 : && sym->ts.type == BT_CHARACTER
1775 1386 : && sym->ts.deferred
1776 268 : && sym->ts.u.cl->passed_length == NULL
1777 12 : && sym->ts.u.cl->backend_decl
1778 0 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1779 : {
1780 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1781 0 : gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)));
1782 0 : sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1783 : }
1784 :
1785 18327 : fun_or_res = byref && (sym->attr.result
1786 14300 : || (sym->attr.function && sym->ts.deferred));
1787 1875622 : if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res)
1788 : {
1789 : /* Return via extra parameter. */
1790 327472 : if (sym->attr.result && byref
1791 4027 : && !sym->backend_decl)
1792 : {
1793 2624 : sym->backend_decl =
1794 1312 : DECL_ARGUMENTS (sym->ns->proc_name->backend_decl);
1795 : /* For entry master function skip over the __entry
1796 : argument. */
1797 1312 : if (sym->ns->proc_name->attr.entry_master)
1798 83 : sym->backend_decl = DECL_CHAIN (sym->backend_decl);
1799 : }
1800 :
1801 : /* Automatic array indices in module procedures need the backend_decl
1802 : to be extracted from the procedure formal arglist. */
1803 327472 : if (sym->attr.dummy && !sym->backend_decl)
1804 : {
1805 12 : gfc_formal_arglist *f;
1806 18 : for (f = sym->ns->proc_name->formal; f; f = f->next)
1807 : {
1808 18 : gfc_symbol *fsym = f->sym;
1809 18 : if (strcmp (sym->name, fsym->name))
1810 6 : continue;
1811 12 : sym->backend_decl = fsym->backend_decl;
1812 12 : break;
1813 : }
1814 : }
1815 :
1816 : /* Dummy variables should already have been created. */
1817 327472 : gcc_assert (sym->backend_decl);
1818 :
1819 : /* However, the string length of deferred arrays must be set. */
1820 327472 : if (sym->ts.type == BT_CHARACTER
1821 29755 : && sym->ts.deferred
1822 3668 : && sym->attr.dimension
1823 1348 : && sym->attr.allocatable)
1824 530 : gfc_defer_symbol_init (sym);
1825 :
1826 17487 : if ((sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS)
1827 334704 : || gfc_is_span_addressed_dummy (sym))
1828 10951 : GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1;
1829 :
1830 : /* Create a character length variable. */
1831 327472 : if (sym->ts.type == BT_CHARACTER)
1832 : {
1833 : /* For a deferred dummy, make a new string length variable. */
1834 29755 : if (sym->ts.deferred
1835 3668 : &&
1836 3668 : (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl))
1837 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1838 :
1839 29755 : if (sym->ts.deferred && byref)
1840 : {
1841 : /* The string length of a deferred char array is stored in the
1842 : parameter at sym->ts.u.cl->backend_decl as a reference and
1843 : marked as a result. Exempt this variable from generating a
1844 : temporary for it. */
1845 811 : if (sym->attr.result)
1846 : {
1847 : /* We need to insert a indirect ref for param decls. */
1848 700 : if (sym->ts.u.cl->backend_decl
1849 700 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1850 : {
1851 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1852 0 : sym->ts.u.cl->backend_decl =
1853 0 : build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1854 : }
1855 : }
1856 : /* For all other parameters make sure, that they are copied so
1857 : that the value and any modifications are local to the routine
1858 : by generating a temporary variable. */
1859 111 : else if (sym->attr.function
1860 99 : && sym->ts.u.cl->passed_length == NULL
1861 0 : && sym->ts.u.cl->backend_decl)
1862 : {
1863 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1864 0 : if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)))
1865 0 : sym->ts.u.cl->backend_decl
1866 0 : = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1867 : else
1868 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1869 : }
1870 : }
1871 :
1872 29755 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1873 1 : length = gfc_create_string_length (sym);
1874 : else
1875 : length = sym->ts.u.cl->backend_decl;
1876 29755 : if (VAR_P (length) && DECL_FILE_SCOPE_P (length))
1877 : {
1878 : /* Add the string length to the same context as the symbol. */
1879 737 : if (DECL_CONTEXT (length) == NULL_TREE)
1880 : {
1881 737 : if (sym->backend_decl == current_function_decl
1882 737 : || (DECL_CONTEXT (sym->backend_decl)
1883 : == current_function_decl))
1884 730 : gfc_add_decl_to_function (length);
1885 : else
1886 7 : gfc_add_decl_to_parent_function (length);
1887 : }
1888 :
1889 : /* When the symbol's own backend_decl is a FUNCTION_DECL, its
1890 : DECL_CONTEXT is where that function itself is declared, not
1891 : where its locals live. */
1892 737 : gcc_assert (TREE_CODE (sym->backend_decl) == FUNCTION_DECL
1893 : ? DECL_CONTEXT (length) == sym->backend_decl
1894 : : (DECL_CONTEXT (sym->backend_decl)
1895 : == DECL_CONTEXT (length)));
1896 :
1897 737 : gfc_defer_symbol_init (sym);
1898 : }
1899 : }
1900 :
1901 : /* Use a copy of the descriptor for dummy arrays. */
1902 327472 : if ((sym->attr.dimension || sym->attr.codimension)
1903 113427 : && !TREE_USED (sym->backend_decl))
1904 : {
1905 20936 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1906 : /* Prevent the dummy from being detected as unused if it is copied. */
1907 20936 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1908 6049 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1909 20936 : sym->backend_decl = decl;
1910 : }
1911 :
1912 : /* Returning the descriptor for dummy class arrays is hazardous, because
1913 : some caller is expecting an expression to apply the component refs to.
1914 : Therefore the descriptor is only created and stored in
1915 : sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then
1916 : responsible to extract it from there, when the descriptor is
1917 : desired. */
1918 28629 : if (IS_CLASS_COARRAY_OR_ARRAY (sym)
1919 338445 : && (!DECL_LANG_SPECIFIC (sym->backend_decl)
1920 8393 : || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl)))
1921 : {
1922 4468 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1923 : /* Prevent the dummy from being detected as unused if it is copied. */
1924 4468 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1925 964 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1926 4468 : sym->backend_decl = decl;
1927 : }
1928 :
1929 327472 : TREE_USED (sym->backend_decl) = 1;
1930 327472 : if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1931 6 : gfc_add_assign_aux_vars (sym);
1932 :
1933 327472 : if (sym->ts.type == BT_CLASS && sym->backend_decl
1934 28629 : && !IS_CLASS_COARRAY_OR_ARRAY (sym))
1935 17656 : GFC_DECL_CLASS (sym->backend_decl) = 1;
1936 :
1937 327472 : return sym->backend_decl;
1938 : }
1939 :
1940 16249 : if (sym->result == sym && sym->attr.assign
1941 1548155 : && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1942 1 : gfc_add_assign_aux_vars (sym);
1943 :
1944 1548150 : if (sym->backend_decl)
1945 : return sym->backend_decl;
1946 :
1947 : /* Special case for array-valued named constants from intrinsic
1948 : procedures; those are inlined. */
1949 206297 : if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER
1950 144 : && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV
1951 144 : || sym->from_intmod == INTMOD_ISO_C_BINDING))
1952 206297 : intrinsic_array_parameter = true;
1953 :
1954 : /* If use associated compilation, use the module
1955 : declaration. */
1956 206297 : if ((sym->attr.flavor == FL_VARIABLE
1957 206297 : || sym->attr.flavor == FL_PARAMETER)
1958 191176 : && (sym->attr.use_assoc || sym->attr.used_in_submodule)
1959 3058 : && !intrinsic_array_parameter
1960 3043 : && sym->module
1961 209340 : && gfc_get_module_backend_decl (sym))
1962 : {
1963 2909 : if (sym->ts.type == BT_CLASS && sym->backend_decl)
1964 39 : GFC_DECL_CLASS(sym->backend_decl) = 1;
1965 2909 : return sym->backend_decl;
1966 : }
1967 :
1968 203388 : if (sym->attr.flavor == FL_PROCEDURE)
1969 : {
1970 : /* Catch functions. Only used for actual parameters,
1971 : procedure pointers and procptr initialization targets. */
1972 14995 : if (sym->attr.use_assoc
1973 14142 : || sym->attr.used_in_submodule
1974 14136 : || sym->attr.intrinsic
1975 12831 : || sym->attr.if_source != IFSRC_DECL)
1976 : {
1977 3207 : decl = gfc_get_extern_function_decl (sym);
1978 : }
1979 : else
1980 : {
1981 11788 : if (!sym->backend_decl)
1982 11788 : build_function_decl (sym, false);
1983 11788 : decl = sym->backend_decl;
1984 : }
1985 14995 : return decl;
1986 : }
1987 :
1988 188393 : if (sym->ts.type == BT_UNKNOWN)
1989 0 : gfc_fatal_error ("%s at %L has no default type", sym->name,
1990 : &sym->declared_at);
1991 :
1992 188393 : if (sym->attr.intrinsic)
1993 0 : gfc_internal_error ("intrinsic variable which isn't a procedure");
1994 :
1995 : /* Create string length decl first so that they can be used in the
1996 : type declaration. For associate names, the target character
1997 : length is used. Set 'length' to a constant so that if the
1998 : string length is a variable, it is not finished a second time. */
1999 188393 : if (sym->ts.type == BT_CHARACTER)
2000 : {
2001 16361 : if (sym->attr.associate_var
2002 1851 : && sym->ts.deferred
2003 383 : && sym->assoc && sym->assoc->target
2004 383 : && ((sym->assoc->target->expr_type == EXPR_VARIABLE
2005 265 : && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER)
2006 340 : || sym->assoc->target->expr_type != EXPR_VARIABLE))
2007 161 : sym->ts.u.cl->backend_decl = NULL_TREE;
2008 :
2009 16361 : if (sym->attr.associate_var
2010 1851 : && sym->ts.u.cl->backend_decl
2011 639 : && (VAR_P (sym->ts.u.cl->backend_decl)
2012 374 : || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL))
2013 313 : length = gfc_index_zero_node;
2014 : else
2015 16048 : length = gfc_create_string_length (sym);
2016 : }
2017 :
2018 : /* Create the decl for the variable. */
2019 188393 : decl = build_decl (gfc_get_location (&sym->declared_at),
2020 : VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym));
2021 :
2022 : /* Symbols from modules should have their assembler names mangled.
2023 : This is done here rather than in gfc_finish_var_decl because it
2024 : is different for string length variables. */
2025 188393 : if (sym->module || sym->fn_result_spec)
2026 : {
2027 19447 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
2028 19447 : if (sym->attr.use_assoc && !intrinsic_array_parameter)
2029 131 : DECL_IGNORED_P (decl) = 1;
2030 : }
2031 :
2032 188393 : if (sym->attr.select_type_temporary)
2033 : {
2034 6013 : DECL_ARTIFICIAL (decl) = 1;
2035 6013 : DECL_IGNORED_P (decl) = 1;
2036 : }
2037 :
2038 188393 : if (sym->attr.dimension || sym->attr.codimension)
2039 : {
2040 : /* Create variables to hold the non-constant bits of array info. */
2041 50067 : gfc_build_qualified_array (decl, sym);
2042 :
2043 50067 : if (sym->attr.contiguous
2044 49998 : || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer))
2045 45183 : GFC_DECL_PACKED_ARRAY (decl) = 1;
2046 : }
2047 :
2048 : /* Remember this variable for allocation/cleanup. */
2049 138842 : if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension
2050 135918 : || (sym->ts.type == BT_CLASS &&
2051 5164 : (CLASS_DATA (sym)->attr.dimension
2052 2872 : || CLASS_DATA (sym)->attr.allocatable))
2053 132085 : || (sym->ts.type == BT_DERIVED
2054 31311 : && (sym->ts.u.derived->attr.alloc_comp
2055 24335 : || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save
2056 5685 : && !sym->ns->proc_name->attr.is_main_program
2057 2322 : && gfc_is_finalizable (sym->ts.u.derived, NULL))))
2058 : /* This applies a derived type default initializer. */
2059 313235 : || (sym->ts.type == BT_DERIVED
2060 24068 : && sym->attr.save == SAVE_NONE
2061 7064 : && !sym->attr.data
2062 7015 : && !sym->attr.allocatable
2063 7015 : && (sym->value && !sym->ns->proc_name->attr.is_main_program)
2064 590 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)))
2065 64141 : gfc_defer_symbol_init (sym);
2066 :
2067 : /* Set the vptr of unlimited polymorphic pointer variables so that
2068 : they do not cause segfaults in select type, when the selector
2069 : is an intrinsic type. Arrays are captured above. */
2070 188393 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
2071 1230 : && CLASS_DATA (sym)->attr.class_pointer
2072 770 : && !CLASS_DATA (sym)->attr.dimension && !sym->attr.dummy
2073 315 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc)
2074 172 : gfc_defer_symbol_init (sym);
2075 :
2076 188393 : if (sym->ts.type == BT_CHARACTER
2077 16361 : && sym->attr.allocatable
2078 1971 : && !sym->attr.dimension
2079 1024 : && sym->ts.u.cl && sym->ts.u.cl->length
2080 204 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
2081 27 : gfc_defer_symbol_init (sym);
2082 :
2083 : /* Associate names can use the hidden string length variable
2084 : of their associated target. */
2085 188393 : if (sym->ts.type == BT_CHARACTER
2086 16361 : && TREE_CODE (length) != INTEGER_CST
2087 3460 : && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF)
2088 : {
2089 3400 : length = fold_convert (gfc_charlen_type_node, length);
2090 3400 : gfc_finish_var_decl (length, sym);
2091 3400 : if (!sym->attr.associate_var
2092 2326 : && VAR_P (length)
2093 2326 : && sym->value && sym->value->expr_type != EXPR_NULL
2094 30 : && sym->value->ts.u.cl->length)
2095 : {
2096 30 : gfc_expr *len = sym->value->ts.u.cl->length;
2097 30 : DECL_INITIAL (length) = gfc_conv_initializer (len, &len->ts,
2098 30 : TREE_TYPE (length),
2099 : false, false, false);
2100 30 : DECL_INITIAL (length) = fold_convert (gfc_charlen_type_node,
2101 : DECL_INITIAL (length));
2102 30 : }
2103 : else
2104 3370 : gcc_assert (!sym->value || sym->value->expr_type == EXPR_NULL);
2105 : }
2106 :
2107 188393 : gfc_finish_var_decl (decl, sym);
2108 :
2109 188393 : if (sym->ts.type == BT_CHARACTER)
2110 : /* Character variables need special handling. */
2111 16361 : gfc_allocate_lang_decl (decl);
2112 :
2113 188393 : if (sym->assoc && sym->attr.subref_array_pointer)
2114 458 : sym->attr.pointer = 1;
2115 :
2116 188393 : if (sym->attr.pointer && sym->attr.dimension
2117 5099 : && !sym->ts.deferred
2118 4810 : && !(sym->attr.select_type_temporary
2119 1188 : && !sym->attr.subref_array_pointer))
2120 3806 : GFC_DECL_PTR_ARRAY_P (decl) = 1;
2121 :
2122 : /* A SELECT RANK temporary uses a copy of the selector's descriptor.
2123 : Its elements may be spaced by more than the element size,
2124 : so use copied span as well. */
2125 1404 : if (sym->attr.select_rank_temporary && sym->attr.dimension
2126 1210 : && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (decl))
2127 1210 : && sym->assoc && sym->assoc->target
2128 189603 : && sym->assoc->target->expr_type == EXPR_VARIABLE)
2129 : {
2130 1210 : gfc_symbol *sel = sym->assoc->target->symtree->n.sym;
2131 1210 : if (!sel->attr.contiguous
2132 1072 : && (sel->attr.target || sel->attr.pointer || sel->ts.type == BT_CLASS))
2133 220 : GFC_DECL_PTR_ARRAY_P (decl) = 1;
2134 : }
2135 :
2136 188393 : if (sym->ts.type == BT_CLASS)
2137 5164 : GFC_DECL_CLASS(decl) = 1;
2138 :
2139 188393 : sym->backend_decl = decl;
2140 :
2141 188393 : if (sym->attr.assign)
2142 59 : gfc_add_assign_aux_vars (sym);
2143 :
2144 188393 : if (intrinsic_array_parameter)
2145 : {
2146 15 : TREE_STATIC (decl) = 1;
2147 15 : DECL_EXTERNAL (decl) = 0;
2148 : }
2149 :
2150 188393 : if (TREE_STATIC (decl)
2151 41686 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)
2152 41686 : && (sym->attr.save || sym->ns->proc_name->attr.is_main_program
2153 1525 : || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
2154 1486 : || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE
2155 53 : || intrinsic_array_parameter)
2156 41634 : && (flag_coarray != GFC_FCOARRAY_LIB
2157 2289 : || !sym->attr.codimension || sym->attr.allocatable)
2158 229657 : && !(IS_PDT (sym) || IS_CLASS_PDT (sym)))
2159 : {
2160 : /* Add static initializer. For procedures, it is only needed if
2161 : SAVE is specified otherwise they need to be reinitialized
2162 : every time the procedure is entered. The TREE_STATIC is
2163 : in this case due to -fmax-stack-var-size=. */
2164 :
2165 40467 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2166 80934 : TREE_TYPE (decl), sym->attr.dimension
2167 34261 : || (sym->attr.codimension
2168 39 : && sym->attr.allocatable),
2169 39856 : sym->attr.pointer || sym->attr.allocatable
2170 39431 : || sym->ts.type == BT_CLASS,
2171 40467 : sym->attr.proc_pointer);
2172 : }
2173 :
2174 188393 : if (!TREE_STATIC (decl)
2175 146707 : && POINTER_TYPE_P (TREE_TYPE (decl))
2176 19792 : && !sym->attr.pointer
2177 13639 : && !sym->attr.allocatable
2178 11342 : && !sym->attr.proc_pointer
2179 199735 : && !sym->attr.select_type_temporary)
2180 8651 : DECL_BY_REFERENCE (decl) = 1;
2181 :
2182 188393 : if (sym->attr.associate_var)
2183 7826 : GFC_DECL_ASSOCIATE_VAR_P (decl) = 1;
2184 :
2185 : /* We only longer mark __def_init as read-only if it actually has an
2186 : initializer, it does not needlessly take up space in the
2187 : read-only section and can go into the BSS instead, see PR 84487.
2188 : Marking this as artificial means that OpenMP will treat this as
2189 : predetermined shared. */
2190 :
2191 188393 : bool def_init = startswith (sym->name, "__def_init");
2192 :
2193 188393 : if (sym->attr.vtab || def_init)
2194 : {
2195 19723 : DECL_ARTIFICIAL (decl) = 1;
2196 19723 : if (def_init && sym->value)
2197 3986 : TREE_READONLY (decl) = 1;
2198 : }
2199 :
2200 : /* Add attributes to variables. Functions are handled elsewhere. */
2201 188393 : add_attributes_to_decl (&decl, sym);
2202 :
2203 188393 : if (sym->ts.deferred && VAR_P (length))
2204 1966 : decl_attributes (&length, DECL_ATTRIBUTES (decl), 0);
2205 :
2206 188393 : return decl;
2207 : }
2208 :
2209 :
2210 : /* Substitute a temporary variable in place of the real one. */
2211 :
2212 : void
2213 6111 : gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save)
2214 : {
2215 6111 : save->attr = sym->attr;
2216 6111 : save->decl = sym->backend_decl;
2217 :
2218 6111 : gfc_clear_attr (&sym->attr);
2219 6111 : sym->attr.referenced = 1;
2220 6111 : sym->attr.flavor = FL_VARIABLE;
2221 :
2222 6111 : sym->backend_decl = decl;
2223 6111 : }
2224 :
2225 :
2226 : /* Restore the original variable. */
2227 :
2228 : void
2229 6111 : gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save)
2230 : {
2231 6111 : sym->attr = save->attr;
2232 6111 : sym->backend_decl = save->decl;
2233 6111 : }
2234 :
2235 :
2236 : /* Declare a procedure pointer. */
2237 :
2238 : static tree
2239 719 : get_proc_pointer_decl (gfc_symbol *sym)
2240 : {
2241 719 : tree decl;
2242 :
2243 719 : if (sym->module || sym->fn_result_spec)
2244 : {
2245 149 : const char *name;
2246 149 : gfc_gsymbol *gsym;
2247 :
2248 149 : name = mangled_identifier (sym);
2249 149 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
2250 149 : if (gsym != NULL)
2251 : {
2252 79 : gfc_symbol *s;
2253 79 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2254 79 : if (s && s->backend_decl)
2255 79 : return s->backend_decl;
2256 : }
2257 : }
2258 :
2259 640 : decl = sym->backend_decl;
2260 640 : if (decl)
2261 : return decl;
2262 :
2263 640 : decl = build_decl (input_location,
2264 : VAR_DECL, get_identifier (sym->name),
2265 : build_pointer_type (gfc_get_function_type (sym)));
2266 :
2267 640 : if (sym->module)
2268 : {
2269 : /* Apply name mangling. */
2270 70 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
2271 70 : if (sym->attr.use_assoc)
2272 0 : DECL_IGNORED_P (decl) = 1;
2273 : }
2274 :
2275 640 : if ((sym->ns->proc_name
2276 640 : && sym->ns->proc_name->backend_decl == current_function_decl)
2277 82 : || sym->attr.contained
2278 82 : || (sym->ns->proc_name
2279 82 : && sym->ns->proc_name->attr.flavor == FL_LABEL))
2280 : /* The last condition handles BLOCK constructs: the proc_name has
2281 : FL_LABEL flavor and its backend_decl is not set, but the proc pointer
2282 : belongs to the enclosing function (current_function_decl). */
2283 564 : gfc_add_decl_to_function (decl);
2284 76 : else if (sym->ns->proc_name->attr.flavor != FL_MODULE)
2285 6 : gfc_add_decl_to_parent_function (decl);
2286 :
2287 640 : sym->backend_decl = decl;
2288 :
2289 : /* If a variable is USE associated, it's always external. */
2290 640 : if (sym->attr.use_assoc)
2291 : {
2292 0 : DECL_EXTERNAL (decl) = 1;
2293 0 : TREE_PUBLIC (decl) = 1;
2294 : }
2295 640 : else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE)
2296 : {
2297 : /* This is the declaration of a module variable. */
2298 70 : TREE_PUBLIC (decl) = 1;
2299 70 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
2300 : {
2301 8 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
2302 8 : DECL_VISIBILITY_SPECIFIED (decl) = true;
2303 : }
2304 70 : TREE_STATIC (decl) = 1;
2305 : }
2306 :
2307 640 : if (!sym->attr.use_assoc
2308 640 : && (sym->attr.save != SAVE_NONE || sym->attr.data
2309 497 : || (sym->value && sym->ns->proc_name->attr.is_main_program)))
2310 143 : TREE_STATIC (decl) = 1;
2311 :
2312 640 : if (TREE_STATIC (decl) && sym->value)
2313 : {
2314 : /* Add static initializer. */
2315 103 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2316 103 : TREE_TYPE (decl),
2317 103 : sym->attr.dimension,
2318 : false, true);
2319 : }
2320 :
2321 640 : add_attributes_to_decl (&decl, sym);
2322 :
2323 : /* Handle threadprivate procedure pointers. */
2324 640 : if (sym->attr.threadprivate
2325 640 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
2326 12 : set_decl_tls_model (decl, decl_default_tls_model (decl));
2327 :
2328 640 : return decl;
2329 : }
2330 :
2331 : static void
2332 : create_function_arglist (gfc_symbol *sym);
2333 :
2334 : /* Get a basic decl for an external function. */
2335 :
2336 : tree
2337 38068 : gfc_get_extern_function_decl (gfc_symbol * sym, gfc_actual_arglist *actual_args,
2338 : const char *fnspec)
2339 : {
2340 38068 : tree type;
2341 38068 : tree fndecl;
2342 38068 : gfc_expr e;
2343 38068 : gfc_intrinsic_sym *isym;
2344 38068 : gfc_expr argexpr;
2345 38068 : char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */
2346 38068 : tree name;
2347 38068 : tree mangled_name;
2348 38068 : gfc_gsymbol *gsym;
2349 :
2350 38068 : if (sym->backend_decl)
2351 : return sym->backend_decl;
2352 :
2353 : /* We should never be creating external decls for alternate entry points.
2354 : The procedure may be an alternate entry point, but we don't want/need
2355 : to know that. */
2356 38068 : gcc_assert (!(sym->attr.entry || sym->attr.entry_master));
2357 :
2358 38068 : if (sym->attr.proc_pointer)
2359 719 : return get_proc_pointer_decl (sym);
2360 :
2361 : /* See if this is an external procedure from the same file. If so,
2362 : return the backend_decl. If we are looking at a BIND(C)
2363 : procedure and the symbol is not BIND(C), or vice versa, we
2364 : haven't found the right procedure. */
2365 :
2366 37349 : if (sym->binding_label)
2367 : {
2368 2641 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label);
2369 2641 : if (gsym && !gsym->bind_c)
2370 : gsym = NULL;
2371 : }
2372 34708 : else if (sym->module == NULL)
2373 : {
2374 20249 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name);
2375 20249 : if (gsym && gsym->bind_c)
2376 : gsym = NULL;
2377 : }
2378 : else
2379 : {
2380 : /* Procedure from a different module. */
2381 : gsym = NULL;
2382 : }
2383 :
2384 11149 : if (gsym && !gsym->defined)
2385 : gsym = NULL;
2386 :
2387 : /* This can happen because of C binding. */
2388 7959 : if (gsym && gsym->ns && gsym->ns->proc_name
2389 7959 : && gsym->ns->proc_name->attr.flavor == FL_MODULE)
2390 557 : goto module_sym;
2391 :
2392 36792 : if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL)
2393 26339 : && !sym->backend_decl
2394 26339 : && gsym && gsym->ns
2395 7402 : && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION))
2396 7402 : && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic))
2397 : {
2398 7402 : if (!gsym->ns->proc_name->backend_decl)
2399 : {
2400 : /* By construction, the external function cannot be
2401 : a contained procedure. */
2402 775 : location_t old_loc = input_location;
2403 775 : push_cfun (NULL);
2404 :
2405 775 : gfc_create_function_decl (gsym->ns, true);
2406 :
2407 775 : pop_cfun ();
2408 775 : input_location = old_loc;
2409 : }
2410 :
2411 : /* If the namespace has entries, the proc_name is the
2412 : entry master. Find the entry and use its backend_decl.
2413 : otherwise, use the proc_name backend_decl. */
2414 7402 : if (gsym->ns->entries)
2415 : {
2416 : gfc_entry_list *entry = gsym->ns->entries;
2417 :
2418 1409 : for (; entry; entry = entry->next)
2419 : {
2420 1409 : if (strcmp (gsym->name, entry->sym->name) == 0)
2421 : {
2422 859 : sym->backend_decl = entry->sym->backend_decl;
2423 859 : break;
2424 : }
2425 : }
2426 : }
2427 : else
2428 6543 : sym->backend_decl = gsym->ns->proc_name->backend_decl;
2429 :
2430 7402 : if (sym->backend_decl)
2431 : {
2432 : /* Avoid problems of double deallocation of the backend declaration
2433 : later in gfc_trans_use_stmts; cf. PR 45087. */
2434 7402 : if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc)
2435 0 : sym->attr.use_assoc = 0;
2436 :
2437 : return sym->backend_decl;
2438 : }
2439 : }
2440 :
2441 : /* See if this is a module procedure from the same file. If so,
2442 : return the backend_decl. */
2443 29390 : if (sym->module)
2444 15362 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
2445 :
2446 29947 : module_sym:
2447 29947 : if (gsym && gsym->ns
2448 12310 : && (gsym->type == GSYM_MODULE
2449 557 : || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE)))
2450 : {
2451 12310 : gfc_symbol *s;
2452 :
2453 12310 : s = NULL;
2454 12310 : if (gsym->type == GSYM_MODULE)
2455 11753 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2456 : else
2457 557 : gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s);
2458 :
2459 12310 : if (s && s->backend_decl)
2460 : {
2461 10205 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
2462 1241 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
2463 : true);
2464 8964 : else if (sym->ts.type == BT_CHARACTER)
2465 459 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
2466 10205 : sym->backend_decl = s->backend_decl;
2467 10205 : return sym->backend_decl;
2468 : }
2469 : }
2470 :
2471 19742 : if (sym->attr.intrinsic)
2472 : {
2473 : /* Call the resolution function to get the actual name. This is
2474 : a nasty hack which relies on the resolution functions only looking
2475 : at the first argument. We pass NULL for the second argument
2476 : otherwise things like AINT get confused. */
2477 1306 : isym = gfc_find_function (sym->name);
2478 1306 : gcc_assert (isym->resolve.f0 != NULL);
2479 :
2480 1306 : memset (&e, 0, sizeof (e));
2481 1306 : e.expr_type = EXPR_FUNCTION;
2482 1306 : e.value.function.isym = isym;
2483 :
2484 1306 : memset (&argexpr, 0, sizeof (argexpr));
2485 1306 : gcc_assert (isym->formal);
2486 1306 : argexpr.ts = isym->formal->ts;
2487 :
2488 1306 : if (isym->formal->next == NULL)
2489 1057 : isym->resolve.f1 (&e, &argexpr);
2490 : else
2491 : {
2492 249 : if (isym->formal->next->next == NULL)
2493 233 : isym->resolve.f2 (&e, &argexpr, NULL);
2494 : else
2495 : {
2496 16 : if (isym->formal->next->next->next == NULL)
2497 0 : isym->resolve.f3 (&e, &argexpr, NULL, NULL);
2498 : else
2499 : {
2500 : /* All specific intrinsics take less than 5 arguments. */
2501 16 : gcc_assert (isym->formal->next->next->next->next == NULL);
2502 16 : isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL);
2503 : }
2504 : }
2505 : }
2506 :
2507 1306 : if (flag_f2c
2508 438 : && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind)
2509 300 : || e.ts.type == BT_COMPLEX))
2510 : {
2511 : /* Specific which needs a different implementation if f2c
2512 : calling conventions are used. */
2513 240 : sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name);
2514 : }
2515 : else
2516 1066 : sprintf (s, "_gfortran_specific%s", e.value.function.name);
2517 :
2518 1306 : name = get_identifier (s);
2519 1306 : mangled_name = name;
2520 : }
2521 : else
2522 : {
2523 18436 : name = gfc_sym_identifier (sym);
2524 18436 : mangled_name = gfc_sym_mangled_function_id (sym);
2525 : }
2526 :
2527 19742 : type = gfc_get_function_type (sym, actual_args, fnspec);
2528 :
2529 19742 : fndecl = build_decl (gfc_get_location (&sym->declared_at),
2530 : FUNCTION_DECL, name, type);
2531 :
2532 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2533 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2534 : the opposite of declaring a function as static in C). */
2535 19742 : DECL_EXTERNAL (fndecl) = 1;
2536 19742 : TREE_PUBLIC (fndecl) = 1;
2537 :
2538 19742 : add_attributes_to_decl (&fndecl, sym);
2539 :
2540 19742 : gfc_set_decl_assembler_name (fndecl, mangled_name);
2541 :
2542 : /* Set the context of this decl. */
2543 19742 : if (0 && sym->ns && sym->ns->proc_name)
2544 : {
2545 : /* TODO: Add external decls to the appropriate scope. */
2546 : DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl;
2547 : }
2548 : else
2549 : {
2550 : /* Global declaration, e.g. intrinsic subroutine. */
2551 19742 : DECL_CONTEXT (fndecl) = NULL_TREE;
2552 : }
2553 :
2554 : /* Set attributes for PURE functions. A call to PURE function in the
2555 : Fortran 95 sense is both pure and without side effects in the C
2556 : sense. */
2557 19742 : if (sym->attr.pure || sym->attr.implicit_pure)
2558 : {
2559 2117 : if (sym->attr.function && !gfc_return_by_reference (sym))
2560 1886 : DECL_PURE_P (fndecl) = 1;
2561 : /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT)
2562 : parameters and don't use alternate returns (is this
2563 : allowed?). In that case, calls to them are meaningless, and
2564 : can be optimized away. See also in build_function_decl(). */
2565 2117 : TREE_SIDE_EFFECTS (fndecl) = 0;
2566 : }
2567 :
2568 : /* Mark non-returning functions. */
2569 19742 : if (sym->attr.noreturn || sym->attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2570 117 : TREE_THIS_VOLATILE(fndecl) = 1;
2571 :
2572 19742 : sym->backend_decl = fndecl;
2573 :
2574 19742 : if (DECL_CONTEXT (fndecl) == NULL_TREE)
2575 19742 : pushdecl_top_level (fndecl);
2576 :
2577 19742 : if (sym->formal_ns
2578 17591 : && sym->formal_ns->proc_name == sym)
2579 : {
2580 17591 : if (sym->formal_ns->omp_declare_simd)
2581 15 : gfc_trans_omp_declare_simd (sym->formal_ns);
2582 17591 : if (flag_openmp)
2583 : {
2584 : // We need DECL_ARGUMENTS to put attributes on, in case some arguments
2585 : // need adjustment
2586 1880 : create_function_arglist (sym->formal_ns->proc_name);
2587 1880 : gfc_trans_omp_declare_variant (sym->formal_ns, sym->ns);
2588 : }
2589 : }
2590 :
2591 19742 : return fndecl;
2592 : }
2593 :
2594 :
2595 : /* Create a declaration for a procedure. For external functions (in the C
2596 : sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is
2597 : a master function with alternate entry points. */
2598 :
2599 : static void
2600 101802 : build_function_decl (gfc_symbol * sym, bool global)
2601 : {
2602 101802 : tree fndecl, type;
2603 101802 : symbol_attribute attr;
2604 101802 : tree result_decl;
2605 101802 : gfc_formal_arglist *f;
2606 :
2607 203604 : bool module_procedure = sym->attr.module_procedure
2608 473 : && sym->ns
2609 473 : && sym->ns->proc_name
2610 102275 : && sym->ns->proc_name->attr.flavor == FL_MODULE;
2611 :
2612 101802 : gcc_assert (!sym->attr.external || module_procedure);
2613 :
2614 101802 : if (sym->backend_decl)
2615 11788 : return;
2616 :
2617 : /* Set the line and filename. sym->declared_at seems to point to the
2618 : last statement for subroutines, but it'll do for now. */
2619 90014 : input_location = gfc_get_location (&sym->declared_at);
2620 :
2621 : /* Allow only one nesting level. Allow public declarations. */
2622 90014 : gcc_assert (current_function_decl == NULL_TREE
2623 : || DECL_FILE_SCOPE_P (current_function_decl)
2624 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2625 : == FUNCTION_DECL)
2626 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2627 : == NAMESPACE_DECL));
2628 :
2629 90014 : type = gfc_get_function_type (sym);
2630 90014 : fndecl = build_decl (input_location,
2631 : FUNCTION_DECL, gfc_sym_identifier (sym), type);
2632 :
2633 90014 : attr = sym->attr;
2634 :
2635 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2636 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2637 : the opposite of declaring a function as static in C). */
2638 90014 : DECL_EXTERNAL (fndecl) = 0;
2639 :
2640 90014 : if (sym->attr.access == ACCESS_UNKNOWN && sym->module
2641 26206 : && (sym->ns->default_access == ACCESS_PRIVATE
2642 24149 : || (sym->ns->default_access == ACCESS_UNKNOWN
2643 24136 : && flag_module_private)))
2644 2057 : sym->attr.access = ACCESS_PRIVATE;
2645 :
2646 27527 : bool in_module_contains = sym->module && sym->ns->proc_name
2647 117541 : && sym->ns->proc_name->attr.flavor == FL_MODULE;
2648 :
2649 90014 : if (!current_function_decl
2650 65982 : && !sym->attr.entry_master && !sym->attr.is_main_program
2651 38209 : && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label
2652 2245 : || sym->attr.public_used || in_module_contains))
2653 : {
2654 38209 : TREE_PUBLIC (fndecl) = 1;
2655 :
2656 : /* Mirror the variable treatment (see gfc_finish_var_decl): PRIVATE
2657 : module procedures get global linkage but hidden visibility so the
2658 : symbol is reachable from submodules in the same link without being
2659 : exported to external DSOs. A binding label has external linkage,
2660 : so PRIVATE hides only the Fortran name. */
2661 38209 : if (in_module_contains && sym->attr.access == ACCESS_PRIVATE
2662 2451 : && !sym->attr.public_used && !sym->binding_label)
2663 : {
2664 884 : DECL_VISIBILITY (fndecl) = VISIBILITY_HIDDEN;
2665 884 : DECL_VISIBILITY_SPECIFIED (fndecl) = true;
2666 : }
2667 : }
2668 :
2669 90014 : if (sym->attr.referenced || sym->attr.entry_master)
2670 42128 : TREE_USED (fndecl) = 1;
2671 :
2672 90014 : add_attributes_to_decl (&fndecl, sym);
2673 :
2674 : /* Figure out the return type of the declared function, and build a
2675 : RESULT_DECL for it. If this is a subroutine with alternate
2676 : returns, build a RESULT_DECL for it. */
2677 90014 : result_decl = NULL_TREE;
2678 : /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */
2679 90014 : if (sym->attr.function)
2680 : {
2681 16840 : if (gfc_return_by_reference (sym))
2682 3270 : type = void_type_node;
2683 : else
2684 : {
2685 13570 : if (sym->result != sym)
2686 6723 : result_decl = gfc_sym_identifier (sym->result);
2687 :
2688 13570 : type = TREE_TYPE (TREE_TYPE (fndecl));
2689 : }
2690 : }
2691 : else
2692 : {
2693 : /* Look for alternate return placeholders. */
2694 73174 : int has_alternate_returns = 0;
2695 155405 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2696 : {
2697 82300 : if (f->sym == NULL)
2698 : {
2699 : has_alternate_returns = 1;
2700 : break;
2701 : }
2702 : }
2703 :
2704 73174 : if (has_alternate_returns)
2705 69 : type = integer_type_node;
2706 : else
2707 73105 : type = void_type_node;
2708 : }
2709 :
2710 90014 : result_decl = build_decl (input_location,
2711 : RESULT_DECL, result_decl, type);
2712 90014 : DECL_ARTIFICIAL (result_decl) = 1;
2713 90014 : DECL_IGNORED_P (result_decl) = 1;
2714 90014 : DECL_CONTEXT (result_decl) = fndecl;
2715 90014 : DECL_RESULT (fndecl) = result_decl;
2716 :
2717 : /* Don't call layout_decl for a RESULT_DECL.
2718 : layout_decl (result_decl, 0); */
2719 :
2720 : /* TREE_STATIC means the function body is defined here. */
2721 90014 : TREE_STATIC (fndecl) = 1;
2722 :
2723 : /* Set attributes for PURE functions. A call to a PURE function in the
2724 : Fortran 95 sense is both pure and without side effects in the C
2725 : sense. */
2726 90014 : if (sym->attr.pure || sym->attr.implicit_pure)
2727 : {
2728 : /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments
2729 : including an alternate return. In that case it can also be
2730 : marked as PURE. See also in gfc_get_extern_function_decl(). */
2731 20299 : if (attr.function && !gfc_return_by_reference (sym))
2732 4902 : DECL_PURE_P (fndecl) = 1;
2733 20299 : TREE_SIDE_EFFECTS (fndecl) = 0;
2734 : }
2735 :
2736 : /* Mark noinline functions. */
2737 90014 : if (attr.ext_attr & (1 << EXT_ATTR_NOINLINE))
2738 5 : DECL_UNINLINABLE (fndecl) = 1;
2739 :
2740 : /* Mark inline functions. Fortran has no 'inline' keyword, so both INLINE
2741 : and ALWAYS_INLINE set DECL_DECLARED_INLINE_P explicitly. ALWAYS_INLINE
2742 : additionally disregards the inliner's size limits. Setting only that
2743 : would make the middle-end warn that the always-inline function "might
2744 : not be inlinable". */
2745 90014 : if (attr.ext_attr & ((1 << EXT_ATTR_INLINE) | (1 << EXT_ATTR_ALWAYS_INLINE)))
2746 2 : DECL_DECLARED_INLINE_P (fndecl) = 1;
2747 90014 : if (attr.ext_attr & (1 << EXT_ATTR_ALWAYS_INLINE))
2748 1 : DECL_DISREGARD_INLINE_LIMITS (fndecl) = 1;
2749 :
2750 : /* Mark noreturn functions. */
2751 90014 : if (attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2752 8 : TREE_THIS_VOLATILE (fndecl) = 1;
2753 :
2754 : /* Mark weak functions. */
2755 90014 : if (attr.ext_attr & (1 << EXT_ATTR_WEAK))
2756 6 : declare_weak (fndecl);
2757 :
2758 : /* Layout the function declaration and put it in the binding level
2759 : of the current function. */
2760 :
2761 90014 : if (global)
2762 778 : pushdecl_top_level (fndecl);
2763 : else
2764 89236 : pushdecl (fndecl);
2765 :
2766 : /* Perform name mangling if this is a top level or module procedure. */
2767 90014 : if (current_function_decl == NULL_TREE)
2768 65982 : gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym));
2769 :
2770 90014 : sym->backend_decl = fndecl;
2771 : }
2772 :
2773 :
2774 : /* Create the DECL_ARGUMENTS for a procedure.
2775 : NOTE: The arguments added here must match the argument type created by
2776 : gfc_get_function_type (). */
2777 :
2778 : static void
2779 91894 : create_function_arglist (gfc_symbol * sym)
2780 : {
2781 91894 : tree fndecl;
2782 91894 : gfc_formal_arglist *f;
2783 91894 : tree typelist, hidden_typelist, optval_typelist;
2784 91894 : tree arglist, hidden_arglist, optval_arglist;
2785 91894 : tree type;
2786 91894 : tree parm;
2787 :
2788 91894 : fndecl = sym->backend_decl;
2789 :
2790 : /* Build formal argument list. Make sure that their TREE_CONTEXT is
2791 : the new FUNCTION_DECL node. */
2792 91894 : arglist = NULL_TREE;
2793 91894 : hidden_arglist = NULL_TREE;
2794 91894 : optval_arglist = NULL_TREE;
2795 91894 : typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl));
2796 :
2797 91894 : if (sym->attr.entry_master)
2798 : {
2799 667 : type = TREE_VALUE (typelist);
2800 667 : parm = build_decl (input_location,
2801 : PARM_DECL, get_identifier ("__entry"), type);
2802 :
2803 667 : DECL_CONTEXT (parm) = fndecl;
2804 667 : DECL_ARG_TYPE (parm) = type;
2805 667 : TREE_READONLY (parm) = 1;
2806 667 : gfc_finish_decl (parm);
2807 667 : DECL_ARTIFICIAL (parm) = 1;
2808 :
2809 667 : arglist = chainon (arglist, parm);
2810 667 : typelist = TREE_CHAIN (typelist);
2811 : }
2812 :
2813 91894 : if (gfc_return_by_reference (sym))
2814 : {
2815 3312 : tree type = TREE_VALUE (typelist), length = NULL;
2816 :
2817 3312 : if (sym->ts.type == BT_CHARACTER)
2818 : {
2819 : /* Length of character result. */
2820 1701 : tree len_type = TREE_VALUE (TREE_CHAIN (typelist));
2821 :
2822 1701 : length = build_decl (input_location,
2823 : PARM_DECL,
2824 : get_identifier (".__result"),
2825 : len_type);
2826 1701 : if (POINTER_TYPE_P (len_type))
2827 : {
2828 300 : sym->ts.u.cl->passed_length = length;
2829 300 : TREE_USED (length) = 1;
2830 : }
2831 1401 : else if (!sym->ts.u.cl->length)
2832 : {
2833 157 : sym->ts.u.cl->backend_decl = length;
2834 157 : TREE_USED (length) = 1;
2835 : }
2836 1701 : gcc_assert (TREE_CODE (length) == PARM_DECL);
2837 1701 : DECL_CONTEXT (length) = fndecl;
2838 1701 : DECL_ARG_TYPE (length) = len_type;
2839 1701 : TREE_READONLY (length) = 1;
2840 1701 : DECL_ARTIFICIAL (length) = 1;
2841 1701 : gfc_finish_decl (length);
2842 1701 : if (sym->ts.u.cl->backend_decl == NULL
2843 666 : || sym->ts.u.cl->backend_decl == length)
2844 : {
2845 1192 : gfc_symbol *arg;
2846 1192 : tree backend_decl;
2847 :
2848 1192 : if (sym->ts.u.cl->backend_decl == NULL)
2849 : {
2850 1035 : tree len = build_decl (input_location,
2851 : VAR_DECL,
2852 : get_identifier ("..__result"),
2853 : gfc_charlen_type_node);
2854 1035 : DECL_ARTIFICIAL (len) = 1;
2855 1035 : TREE_USED (len) = 1;
2856 1035 : sym->ts.u.cl->backend_decl = len;
2857 : }
2858 :
2859 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2860 1192 : arg = sym->result ? sym->result : sym;
2861 1192 : backend_decl = arg->backend_decl;
2862 : /* Temporary clear it, so that gfc_sym_type creates complete
2863 : type. */
2864 1192 : arg->backend_decl = NULL;
2865 1192 : type = gfc_sym_type (arg);
2866 1192 : arg->backend_decl = backend_decl;
2867 1192 : type = build_reference_type (type);
2868 : }
2869 : }
2870 :
2871 3312 : parm = build_decl (input_location,
2872 : PARM_DECL, get_identifier ("__result"), type);
2873 :
2874 3312 : DECL_CONTEXT (parm) = fndecl;
2875 3312 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
2876 3312 : TREE_READONLY (parm) = 1;
2877 3312 : DECL_ARTIFICIAL (parm) = 1;
2878 3312 : gfc_finish_decl (parm);
2879 :
2880 3312 : arglist = chainon (arglist, parm);
2881 3312 : typelist = TREE_CHAIN (typelist);
2882 :
2883 3312 : if (sym->ts.type == BT_CHARACTER)
2884 : {
2885 1701 : gfc_allocate_lang_decl (parm);
2886 1701 : arglist = chainon (arglist, length);
2887 1701 : typelist = TREE_CHAIN (typelist);
2888 : }
2889 : }
2890 :
2891 91894 : hidden_typelist = typelist;
2892 200259 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2893 108365 : if (f->sym != NULL) /* Ignore alternate returns. */
2894 108266 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2895 :
2896 : /* Advance hidden_typelist over optional+value argument presence flags. */
2897 91894 : optval_typelist = hidden_typelist;
2898 200259 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2899 108365 : if (f->sym != NULL
2900 108266 : && f->sym->attr.optional && f->sym->attr.value
2901 560 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2902 524 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2903 :
2904 200259 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2905 : {
2906 108365 : char name[GFC_MAX_SYMBOL_LEN + 2];
2907 :
2908 : /* Ignore alternate returns. */
2909 108365 : if (f->sym == NULL)
2910 99 : continue;
2911 :
2912 108266 : type = TREE_VALUE (typelist);
2913 :
2914 108266 : if (f->sym->ts.type == BT_CHARACTER
2915 9769 : && (!sym->attr.is_bind_c || sym->attr.entry_master))
2916 : {
2917 8446 : tree len_type = TREE_VALUE (hidden_typelist);
2918 8446 : tree length = NULL_TREE;
2919 8446 : if (!f->sym->ts.deferred)
2920 7578 : gcc_assert (len_type == gfc_charlen_type_node);
2921 : else
2922 868 : gcc_assert (POINTER_TYPE_P (len_type));
2923 :
2924 8446 : strcpy (&name[1], f->sym->name);
2925 8446 : name[0] = '_';
2926 8446 : length = build_decl (input_location,
2927 : PARM_DECL, get_identifier (name), len_type);
2928 :
2929 8446 : hidden_arglist = chainon (hidden_arglist, length);
2930 8446 : DECL_CONTEXT (length) = fndecl;
2931 8446 : DECL_ARTIFICIAL (length) = 1;
2932 8446 : DECL_ARG_TYPE (length) = len_type;
2933 8446 : TREE_READONLY (length) = 1;
2934 8446 : gfc_finish_decl (length);
2935 :
2936 : /* Marking the length DECL_HIDDEN_STRING_LENGTH will lead
2937 : to tail calls being disabled. Only do that if we
2938 : potentially have broken callers. */
2939 8446 : if (flag_tail_call_workaround
2940 8446 : && f->sym->ts.u.cl
2941 7890 : && f->sym->ts.u.cl->length
2942 2707 : && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT
2943 2418 : && (flag_tail_call_workaround == 2
2944 2418 : || f->sym->ns->implicit_interface_calls))
2945 84 : DECL_HIDDEN_STRING_LENGTH (length) = 1;
2946 :
2947 : /* Remember the passed value. */
2948 8446 : if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length)
2949 : {
2950 : /* This can happen if the same type is used for multiple
2951 : arguments. We need to copy cl as otherwise
2952 : cl->passed_length gets overwritten. */
2953 658 : f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl);
2954 : }
2955 8446 : f->sym->ts.u.cl->passed_length = length;
2956 :
2957 : /* Use the passed value for assumed length variables. */
2958 8446 : if (!f->sym->ts.u.cl->length)
2959 : {
2960 5739 : TREE_USED (length) = 1;
2961 5739 : gcc_assert (!f->sym->ts.u.cl->backend_decl);
2962 5739 : f->sym->ts.u.cl->backend_decl = length;
2963 : }
2964 :
2965 8446 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2966 :
2967 8446 : if (f->sym->ts.u.cl->backend_decl == NULL
2968 8124 : || f->sym->ts.u.cl->backend_decl == length)
2969 : {
2970 6061 : if (POINTER_TYPE_P (len_type))
2971 768 : f->sym->ts.u.cl->backend_decl
2972 768 : = build_fold_indirect_ref_loc (input_location, length);
2973 5293 : else if (f->sym->ts.u.cl->backend_decl == NULL)
2974 322 : gfc_create_string_length (f->sym);
2975 :
2976 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2977 6061 : if (f->sym->attr.flavor == FL_PROCEDURE)
2978 14 : type = build_pointer_type (gfc_get_function_type (f->sym));
2979 : else
2980 6047 : type = gfc_sym_type (f->sym);
2981 : }
2982 : }
2983 : /* For scalar intrinsic types or derived types, VALUE passes the value,
2984 : hence, the optional status cannot be transferred via a NULL pointer.
2985 : Thus, we will use a hidden argument in that case. */
2986 108266 : if (f->sym->attr.optional && f->sym->attr.value
2987 560 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2988 : {
2989 524 : tree tmp;
2990 524 : strcpy (&name[1], f->sym->name);
2991 524 : name[0] = '.';
2992 524 : tmp = build_decl (input_location,
2993 : PARM_DECL, get_identifier (name),
2994 : boolean_type_node);
2995 :
2996 524 : optval_arglist = chainon (optval_arglist, tmp);
2997 524 : DECL_CONTEXT (tmp) = fndecl;
2998 524 : DECL_ARTIFICIAL (tmp) = 1;
2999 524 : DECL_ARG_TYPE (tmp) = boolean_type_node;
3000 524 : TREE_READONLY (tmp) = 1;
3001 524 : gfc_finish_decl (tmp);
3002 :
3003 : /* The presence flag must be boolean. */
3004 524 : gcc_assert (TREE_VALUE (optval_typelist) == boolean_type_node);
3005 524 : optval_typelist = TREE_CHAIN (optval_typelist);
3006 : }
3007 :
3008 : /* For non-constant length array arguments, make sure they use
3009 : a different type node from TYPE_ARG_TYPES type. */
3010 108266 : if (f->sym->attr.dimension
3011 23893 : && type == TREE_VALUE (typelist)
3012 22539 : && TREE_CODE (type) == POINTER_TYPE
3013 10019 : && GFC_ARRAY_TYPE_P (type)
3014 8110 : && f->sym->as->type != AS_ASSUMED_SIZE
3015 114540 : && ! COMPLETE_TYPE_P (TREE_TYPE (type)))
3016 : {
3017 2648 : if (f->sym->attr.flavor == FL_PROCEDURE)
3018 0 : type = build_pointer_type (gfc_get_function_type (f->sym));
3019 : else
3020 2648 : type = gfc_sym_type (f->sym);
3021 : }
3022 :
3023 108266 : if (f->sym->attr.proc_pointer)
3024 152 : type = build_pointer_type (type);
3025 :
3026 108266 : if (f->sym->attr.volatile_)
3027 5 : type = build_qualified_type (type, TYPE_QUAL_VOLATILE);
3028 :
3029 : /* Build the argument declaration. For C descriptors, we use a
3030 : '_'-prefixed name for the parm_decl and inside the proc the
3031 : sym->name. */
3032 108266 : tree parm_name;
3033 108266 : if (sym->attr.is_bind_c && is_CFI_desc (f->sym, NULL))
3034 : {
3035 1820 : strcpy (&name[1], f->sym->name);
3036 1820 : name[0] = '_';
3037 1820 : parm_name = get_identifier (name);
3038 : }
3039 : else
3040 106446 : parm_name = gfc_sym_identifier (f->sym);
3041 108266 : parm = build_decl (input_location, PARM_DECL, parm_name, type);
3042 :
3043 108266 : if (f->sym->attr.volatile_)
3044 : {
3045 5 : TREE_THIS_VOLATILE (parm) = 1;
3046 5 : TREE_SIDE_EFFECTS (parm) = 1;
3047 : }
3048 :
3049 : /* Fill in arg stuff. */
3050 108266 : DECL_CONTEXT (parm) = fndecl;
3051 108266 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
3052 : /* All implementation args except for VALUE are read-only. */
3053 108266 : if (!f->sym->attr.value)
3054 98654 : TREE_READONLY (parm) = 1;
3055 108266 : if (POINTER_TYPE_P (type)
3056 99485 : && (!f->sym->attr.proc_pointer
3057 99333 : && f->sym->attr.flavor != FL_PROCEDURE))
3058 98538 : DECL_BY_REFERENCE (parm) = 1;
3059 108266 : if (f->sym->attr.optional)
3060 : {
3061 6270 : gfc_allocate_lang_decl (parm);
3062 6270 : GFC_DECL_OPTIONAL_ARGUMENT (parm) = 1;
3063 : }
3064 :
3065 108266 : gfc_finish_decl (parm);
3066 108266 : gfc_finish_decl_attrs (parm, &f->sym->attr);
3067 :
3068 108266 : f->sym->backend_decl = parm;
3069 :
3070 : /* Coarrays which are descriptorless or assumed-shape pass with
3071 : -fcoarray=lib the token and the offset as hidden arguments. */
3072 108266 : if (flag_coarray == GFC_FCOARRAY_LIB
3073 7363 : && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension
3074 1636 : && !f->sym->attr.allocatable)
3075 5749 : || (f->sym->ts.type == BT_CLASS
3076 27 : && CLASS_DATA (f->sym)->attr.codimension
3077 22 : && !CLASS_DATA (f->sym)->attr.allocatable)))
3078 : {
3079 1632 : tree caf_type;
3080 1632 : tree token;
3081 1632 : tree offset;
3082 :
3083 1632 : gcc_assert (f->sym->backend_decl != NULL_TREE
3084 : && !sym->attr.is_bind_c);
3085 1632 : caf_type = f->sym->ts.type == BT_CLASS
3086 1632 : ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl)
3087 1614 : : TREE_TYPE (f->sym->backend_decl);
3088 :
3089 1632 : token = build_decl (input_location, PARM_DECL,
3090 : create_tmp_var_name ("caf_token"),
3091 : build_qualified_type (pvoid_type_node,
3092 : TYPE_QUAL_RESTRICT));
3093 1632 : if ((f->sym->ts.type != BT_CLASS
3094 1614 : && f->sym->as->type != AS_DEFERRED)
3095 18 : || (f->sym->ts.type == BT_CLASS
3096 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3097 : {
3098 1632 : gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL
3099 : || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE);
3100 1632 : if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL)
3101 1627 : gfc_allocate_lang_decl (f->sym->backend_decl);
3102 1632 : GFC_DECL_TOKEN (f->sym->backend_decl) = token;
3103 : }
3104 : else
3105 : {
3106 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE);
3107 0 : GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token;
3108 : }
3109 :
3110 1632 : DECL_CONTEXT (token) = fndecl;
3111 1632 : DECL_ARTIFICIAL (token) = 1;
3112 1632 : DECL_ARG_TYPE (token) = TREE_VALUE (typelist);
3113 1632 : TREE_READONLY (token) = 1;
3114 1632 : hidden_arglist = chainon (hidden_arglist, token);
3115 1632 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3116 1632 : gfc_finish_decl (token);
3117 :
3118 1632 : offset = build_decl (input_location, PARM_DECL,
3119 : create_tmp_var_name ("caf_offset"),
3120 : gfc_array_index_type);
3121 :
3122 1632 : if ((f->sym->ts.type != BT_CLASS
3123 1614 : && f->sym->as->type != AS_DEFERRED)
3124 18 : || (f->sym->ts.type == BT_CLASS
3125 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3126 : {
3127 1632 : gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl)
3128 : == NULL_TREE);
3129 1632 : GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset;
3130 : }
3131 : else
3132 : {
3133 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE);
3134 0 : GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset;
3135 : }
3136 1632 : DECL_CONTEXT (offset) = fndecl;
3137 1632 : DECL_ARTIFICIAL (offset) = 1;
3138 1632 : DECL_ARG_TYPE (offset) = TREE_VALUE (typelist);
3139 1632 : TREE_READONLY (offset) = 1;
3140 1632 : hidden_arglist = chainon (hidden_arglist, offset);
3141 1632 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3142 1632 : gfc_finish_decl (offset);
3143 : }
3144 :
3145 108266 : arglist = chainon (arglist, parm);
3146 108266 : typelist = TREE_CHAIN (typelist);
3147 : }
3148 :
3149 : /* Add hidden present status for optional+value arguments. */
3150 91894 : arglist = chainon (arglist, optval_arglist);
3151 :
3152 : /* Add the hidden string length parameters, unless the procedure
3153 : is bind(C). */
3154 91894 : if (!sym->attr.is_bind_c)
3155 89701 : arglist = chainon (arglist, hidden_arglist);
3156 :
3157 183788 : gcc_assert (hidden_typelist == NULL_TREE
3158 : || TREE_VALUE (hidden_typelist) == void_type_node);
3159 91894 : DECL_ARGUMENTS (fndecl) = arglist;
3160 91894 : }
3161 :
3162 : /* Do the setup necessary before generating the body of a function. */
3163 :
3164 : static void
3165 90014 : trans_function_start (gfc_symbol * sym)
3166 : {
3167 90014 : tree fndecl;
3168 :
3169 90014 : fndecl = sym->backend_decl;
3170 :
3171 : /* Let GCC know the current scope is this function. */
3172 90014 : current_function_decl = fndecl;
3173 :
3174 : /* Let the world know what we're about to do. */
3175 90014 : announce_function (fndecl);
3176 :
3177 90014 : if (DECL_FILE_SCOPE_P (fndecl))
3178 : {
3179 : /* Create RTL for function declaration. */
3180 38710 : rest_of_decl_compilation (fndecl, 1, 0);
3181 : }
3182 :
3183 : /* Create RTL for function definition. */
3184 90014 : make_decl_rtl (fndecl);
3185 :
3186 90014 : allocate_struct_function (fndecl, false);
3187 :
3188 : /* function.cc requires a push at the start of the function. */
3189 90014 : pushlevel ();
3190 90014 : }
3191 :
3192 : /* Create thunks for alternate entry points. */
3193 :
3194 : static void
3195 667 : build_entry_thunks (gfc_namespace * ns, bool global)
3196 : {
3197 667 : gfc_formal_arglist *formal;
3198 667 : gfc_formal_arglist *thunk_formal;
3199 667 : gfc_entry_list *el;
3200 667 : gfc_symbol *thunk_sym;
3201 667 : stmtblock_t body;
3202 667 : tree thunk_fndecl;
3203 667 : tree tmp;
3204 667 : location_t old_loc;
3205 :
3206 : /* This should always be a toplevel function. */
3207 667 : gcc_assert (current_function_decl == NULL_TREE);
3208 :
3209 667 : old_loc = input_location;
3210 2079 : for (el = ns->entries; el; el = el->next)
3211 : {
3212 1412 : vec<tree, va_gc> *args = NULL;
3213 1412 : vec<tree, va_gc> *string_args = NULL;
3214 :
3215 1412 : thunk_sym = el->sym;
3216 :
3217 1412 : build_function_decl (thunk_sym, global);
3218 1412 : create_function_arglist (thunk_sym);
3219 :
3220 1412 : trans_function_start (thunk_sym);
3221 :
3222 1412 : thunk_fndecl = thunk_sym->backend_decl;
3223 :
3224 1412 : gfc_init_block (&body);
3225 :
3226 : /* Pass extra parameter identifying this entry point. */
3227 1412 : tmp = build_int_cst (gfc_array_index_type, el->id);
3228 1412 : vec_safe_push (args, tmp);
3229 :
3230 : /* When the master returns by reference, pass the result reference
3231 : and (for CHARACTER) the string length to the master call. If the
3232 : thunk itself also returns by reference these are forwarded from
3233 : its own argument list; otherwise (bind(c) CHARACTER entry) we
3234 : create local temporaries and load the value after the call. */
3235 1412 : tree result_ref = NULL_TREE;
3236 1412 : if (thunk_sym->attr.function
3237 1412 : && gfc_return_by_reference (ns->proc_name))
3238 : {
3239 300 : if (gfc_return_by_reference (thunk_sym))
3240 : {
3241 276 : tree ref = DECL_ARGUMENTS (current_function_decl);
3242 276 : vec_safe_push (args, ref);
3243 276 : if (ns->proc_name->ts.type == BT_CHARACTER)
3244 160 : vec_safe_push (args, DECL_CHAIN (ref));
3245 : }
3246 : else
3247 : {
3248 : /* The thunk is bind(c) and returns CHARACTER by value, but
3249 : the master returns by reference. Create a local buffer
3250 : and length to pass to the master call. */
3251 24 : tree chartype = gfc_get_char_type (thunk_sym->ts.kind);
3252 24 : tree len;
3253 :
3254 24 : if (thunk_sym->ts.u.cl && thunk_sym->ts.u.cl->length)
3255 : {
3256 24 : gfc_se se;
3257 24 : gfc_init_se (&se, NULL);
3258 24 : gfc_conv_expr (&se, thunk_sym->ts.u.cl->length);
3259 24 : gfc_add_block_to_block (&body, &se.pre);
3260 24 : len = se.expr;
3261 24 : gfc_add_block_to_block (&body, &se.post);
3262 24 : }
3263 : else
3264 0 : len = build_int_cst (gfc_charlen_type_node, 1);
3265 :
3266 24 : result_ref = build_decl (input_location, VAR_DECL,
3267 : get_identifier ("__entry_result"),
3268 : build_array_type (chartype,
3269 : build_range_type (gfc_array_index_type,
3270 : gfc_index_one_node,
3271 : fold_convert (gfc_array_index_type,
3272 : len))));
3273 24 : DECL_ARTIFICIAL (result_ref) = 1;
3274 24 : TREE_USED (result_ref) = 1;
3275 24 : DECL_CONTEXT (result_ref) = current_function_decl;
3276 24 : layout_decl (result_ref, 0);
3277 24 : pushdecl (result_ref);
3278 :
3279 48 : vec_safe_push (args,
3280 24 : build_fold_addr_expr_loc (input_location,
3281 : result_ref));
3282 24 : vec_safe_push (args, len);
3283 : }
3284 : }
3285 :
3286 2977 : for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal;
3287 1565 : formal = formal->next)
3288 : {
3289 : /* Ignore alternate returns. */
3290 1565 : if (formal->sym == NULL)
3291 36 : continue;
3292 :
3293 : /* We don't have a clever way of identifying arguments, so resort to
3294 : a brute-force search. */
3295 1529 : for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym);
3296 2697 : thunk_formal;
3297 1168 : thunk_formal = thunk_formal->next)
3298 : {
3299 2257 : if (thunk_formal->sym == formal->sym)
3300 : break;
3301 : }
3302 :
3303 1529 : if (thunk_formal)
3304 : {
3305 : /* Pass the argument. */
3306 1089 : DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1;
3307 1089 : vec_safe_push (args, thunk_formal->sym->backend_decl);
3308 1089 : if (formal->sym->ts.type == BT_CHARACTER)
3309 : {
3310 94 : tmp = thunk_formal->sym->ts.u.cl->backend_decl;
3311 94 : vec_safe_push (string_args, tmp);
3312 : }
3313 : }
3314 : else
3315 : {
3316 : /* Pass NULL for a missing argument. */
3317 440 : vec_safe_push (args, null_pointer_node);
3318 440 : if (formal->sym->ts.type == BT_CHARACTER)
3319 : {
3320 38 : tmp = build_int_cst (gfc_charlen_type_node, 0);
3321 38 : vec_safe_push (string_args, tmp);
3322 : }
3323 : }
3324 : }
3325 :
3326 : /* Call the master function. */
3327 1412 : vec_safe_splice (args, string_args);
3328 1412 : tmp = ns->proc_name->backend_decl;
3329 1412 : tmp = build_call_expr_loc_vec (input_location, tmp, args);
3330 1412 : if (result_ref != NULL_TREE)
3331 : {
3332 : /* The master returns by reference (void) but the bind(c) thunk
3333 : returns CHARACTER by value. Execute the master call, then
3334 : load the first character from the local buffer. */
3335 24 : gfc_add_expr_to_block (&body, tmp);
3336 24 : tmp = build4_loc (input_location, ARRAY_REF,
3337 24 : TREE_TYPE (TREE_TYPE (result_ref)),
3338 : result_ref, gfc_index_one_node,
3339 : NULL_TREE, NULL_TREE);
3340 24 : tmp = fold_convert (TREE_TYPE (DECL_RESULT (current_function_decl)),
3341 : tmp);
3342 24 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3343 24 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3344 24 : DECL_RESULT (current_function_decl), tmp);
3345 24 : tmp = build1_v (RETURN_EXPR, tmp);
3346 : }
3347 1388 : else if (ns->proc_name->attr.mixed_entry_master)
3348 : {
3349 214 : tree union_decl, field;
3350 214 : tree master_type = TREE_TYPE (ns->proc_name->backend_decl);
3351 :
3352 214 : union_decl = build_decl (input_location,
3353 : VAR_DECL, get_identifier ("__result"),
3354 214 : TREE_TYPE (master_type));
3355 214 : DECL_ARTIFICIAL (union_decl) = 1;
3356 214 : DECL_EXTERNAL (union_decl) = 0;
3357 214 : TREE_PUBLIC (union_decl) = 0;
3358 214 : TREE_USED (union_decl) = 1;
3359 214 : layout_decl (union_decl, 0);
3360 214 : pushdecl (union_decl);
3361 :
3362 214 : DECL_CONTEXT (union_decl) = current_function_decl;
3363 214 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3364 214 : TREE_TYPE (union_decl), union_decl, tmp);
3365 214 : gfc_add_expr_to_block (&body, tmp);
3366 :
3367 214 : for (field = TYPE_FIELDS (TREE_TYPE (union_decl));
3368 348 : field; field = DECL_CHAIN (field))
3369 348 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3370 348 : thunk_sym->result->name) == 0)
3371 : break;
3372 0 : gcc_assert (field != NULL_TREE);
3373 214 : tmp = fold_build3_loc (input_location, COMPONENT_REF,
3374 214 : TREE_TYPE (field), union_decl, field,
3375 : NULL_TREE);
3376 214 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3377 214 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3378 214 : DECL_RESULT (current_function_decl), tmp);
3379 214 : tmp = build1_v (RETURN_EXPR, tmp);
3380 : }
3381 1174 : else if (TREE_TYPE (DECL_RESULT (current_function_decl))
3382 1174 : != void_type_node)
3383 : {
3384 705 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3385 705 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3386 705 : DECL_RESULT (current_function_decl), tmp);
3387 705 : tmp = build1_v (RETURN_EXPR, tmp);
3388 : }
3389 1412 : gfc_add_expr_to_block (&body, tmp);
3390 :
3391 : /* Finish off this function and send it for code generation. */
3392 1412 : DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body);
3393 1412 : tmp = getdecls ();
3394 1412 : poplevel (1, 1);
3395 1412 : BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl;
3396 2824 : DECL_SAVED_TREE (thunk_fndecl)
3397 2824 : = fold_build3_loc (DECL_SOURCE_LOCATION (thunk_fndecl), BIND_EXPR,
3398 1412 : void_type_node, tmp, DECL_SAVED_TREE (thunk_fndecl),
3399 1412 : DECL_INITIAL (thunk_fndecl));
3400 :
3401 : /* Output the GENERIC tree. */
3402 1412 : dump_function (TDI_original, thunk_fndecl);
3403 :
3404 : /* Store the end of the function, so that we get good line number
3405 : info for the epilogue. */
3406 1412 : cfun->function_end_locus = input_location;
3407 :
3408 : /* We're leaving the context of this function, so zap cfun.
3409 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
3410 : tree_rest_of_compilation. */
3411 1412 : set_cfun (NULL);
3412 :
3413 1412 : current_function_decl = NULL_TREE;
3414 :
3415 1412 : cgraph_node::finalize_function (thunk_fndecl, true);
3416 :
3417 : /* We share the symbols in the formal argument list with other entry
3418 : points and the master function. Clear them so that they are
3419 : recreated for each function. */
3420 2546 : for (formal = gfc_sym_get_dummy_args (thunk_sym); formal;
3421 1134 : formal = formal->next)
3422 1134 : if (formal->sym != NULL) /* Ignore alternate returns. */
3423 : {
3424 1089 : formal->sym->backend_decl = NULL_TREE;
3425 1089 : if (formal->sym->ts.type == BT_CHARACTER)
3426 94 : formal->sym->ts.u.cl->backend_decl = NULL_TREE;
3427 : }
3428 :
3429 1412 : if (thunk_sym->attr.function)
3430 : {
3431 1194 : if (thunk_sym->ts.type == BT_CHARACTER)
3432 186 : thunk_sym->ts.u.cl->backend_decl = NULL_TREE;
3433 1194 : if (thunk_sym->result->ts.type == BT_CHARACTER)
3434 186 : thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE;
3435 : }
3436 : }
3437 :
3438 667 : input_location = old_loc;
3439 667 : }
3440 :
3441 :
3442 : /* Create a decl for a function, and create any thunks for alternate entry
3443 : points. If global is true, generate the function in the global binding
3444 : level, otherwise in the current binding level (which can be global). */
3445 :
3446 : void
3447 88602 : gfc_create_function_decl (gfc_namespace * ns, bool global)
3448 : {
3449 : /* Create a declaration for the master function. */
3450 88602 : build_function_decl (ns->proc_name, global);
3451 :
3452 : /* Compile the entry thunks. */
3453 88602 : if (ns->entries)
3454 667 : build_entry_thunks (ns, global);
3455 :
3456 : /* Now create the read argument list. */
3457 88602 : create_function_arglist (ns->proc_name);
3458 :
3459 88602 : if (ns->omp_declare_simd)
3460 104 : gfc_trans_omp_declare_simd (ns);
3461 :
3462 : /* Handle 'declare variant' directives. The applicable directives might
3463 : be declared in a parent namespace, so this needs to be called even if
3464 : there are no local directives. */
3465 88602 : if (flag_openmp)
3466 8856 : gfc_trans_omp_declare_variant (ns, NULL);
3467 88602 : }
3468 :
3469 : /* Return the decl used to hold the function return value. If
3470 : parent_flag is set, the context is the parent_scope. */
3471 :
3472 : tree
3473 13295 : gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag)
3474 : {
3475 13295 : tree decl;
3476 13295 : tree length;
3477 13295 : tree this_fake_result_decl;
3478 13295 : tree this_function_decl;
3479 :
3480 13295 : char name[GFC_MAX_SYMBOL_LEN + 10];
3481 :
3482 13295 : if (parent_flag)
3483 : {
3484 173 : this_fake_result_decl = parent_fake_result_decl;
3485 173 : this_function_decl = DECL_CONTEXT (current_function_decl);
3486 : }
3487 : else
3488 : {
3489 13122 : this_fake_result_decl = current_fake_result_decl;
3490 13122 : this_function_decl = current_function_decl;
3491 : }
3492 :
3493 13295 : if (sym
3494 13245 : && sym->ns->proc_name->backend_decl == this_function_decl
3495 4999 : && sym->ns->proc_name->attr.entry_master
3496 2392 : && sym != sym->ns->proc_name)
3497 : {
3498 1480 : tree t = NULL, var;
3499 1480 : if (this_fake_result_decl != NULL)
3500 1452 : for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t))
3501 1071 : if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0)
3502 : break;
3503 958 : if (t)
3504 577 : return TREE_VALUE (t);
3505 903 : decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag);
3506 :
3507 903 : if (parent_flag)
3508 14 : this_fake_result_decl = parent_fake_result_decl;
3509 : else
3510 889 : this_fake_result_decl = current_fake_result_decl;
3511 :
3512 903 : if (decl && sym->ns->proc_name->attr.mixed_entry_master)
3513 : {
3514 214 : tree field;
3515 :
3516 214 : for (field = TYPE_FIELDS (TREE_TYPE (decl));
3517 348 : field; field = DECL_CHAIN (field))
3518 348 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3519 : sym->name) == 0)
3520 : break;
3521 :
3522 214 : gcc_assert (field != NULL_TREE);
3523 214 : decl = fold_build3_loc (input_location, COMPONENT_REF,
3524 214 : TREE_TYPE (field), decl, field, NULL_TREE);
3525 : }
3526 :
3527 903 : var = create_tmp_var_raw (TREE_TYPE (decl), sym->name);
3528 903 : if (parent_flag)
3529 14 : gfc_add_decl_to_parent_function (var);
3530 : else
3531 889 : gfc_add_decl_to_function (var);
3532 :
3533 903 : SET_DECL_VALUE_EXPR (var, decl);
3534 903 : DECL_HAS_VALUE_EXPR_P (var) = 1;
3535 903 : GFC_DECL_RESULT (var) = 1;
3536 :
3537 903 : TREE_CHAIN (this_fake_result_decl)
3538 903 : = tree_cons (get_identifier (sym->name), var,
3539 903 : TREE_CHAIN (this_fake_result_decl));
3540 903 : return var;
3541 : }
3542 :
3543 11815 : if (this_fake_result_decl != NULL_TREE)
3544 4107 : return TREE_VALUE (this_fake_result_decl);
3545 :
3546 : /* Only when gfc_get_fake_result_decl is called by gfc_trans_return,
3547 : sym is NULL. */
3548 7708 : if (!sym)
3549 : return NULL_TREE;
3550 :
3551 7708 : if (sym->ts.type == BT_CHARACTER)
3552 : {
3553 864 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
3554 0 : length = gfc_create_string_length (sym);
3555 : else
3556 : length = sym->ts.u.cl->backend_decl;
3557 864 : if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE)
3558 520 : gfc_add_decl_to_function (length);
3559 : }
3560 :
3561 7708 : if (gfc_return_by_reference (sym))
3562 : {
3563 1625 : decl = DECL_ARGUMENTS (this_function_decl);
3564 :
3565 1625 : if (sym->ns->proc_name->backend_decl == this_function_decl
3566 411 : && sym->ns->proc_name->attr.entry_master)
3567 85 : decl = DECL_CHAIN (decl);
3568 :
3569 1625 : TREE_USED (decl) = 1;
3570 1625 : if (sym->as)
3571 807 : decl = gfc_build_dummy_array_decl (sym, decl);
3572 : }
3573 : else
3574 : {
3575 12166 : sprintf (name, "__result_%.20s",
3576 6083 : IDENTIFIER_POINTER (DECL_NAME (this_function_decl)));
3577 :
3578 6083 : if (!sym->attr.mixed_entry_master && sym->attr.function)
3579 5942 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3580 : VAR_DECL, get_identifier (name),
3581 : gfc_sym_type (sym));
3582 : else
3583 141 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3584 : VAR_DECL, get_identifier (name),
3585 141 : TREE_TYPE (TREE_TYPE (this_function_decl)));
3586 6083 : DECL_ARTIFICIAL (decl) = 1;
3587 6083 : DECL_EXTERNAL (decl) = 0;
3588 6083 : TREE_PUBLIC (decl) = 0;
3589 6083 : TREE_USED (decl) = 1;
3590 6083 : GFC_DECL_RESULT (decl) = 1;
3591 6083 : TREE_ADDRESSABLE (decl) = 1;
3592 :
3593 6083 : layout_decl (decl, 0);
3594 6083 : gfc_finish_decl_attrs (decl, &sym->attr);
3595 :
3596 6083 : if (parent_flag)
3597 27 : gfc_add_decl_to_parent_function (decl);
3598 : else
3599 6056 : gfc_add_decl_to_function (decl);
3600 : }
3601 :
3602 7708 : if (parent_flag)
3603 45 : parent_fake_result_decl = build_tree_list (NULL, decl);
3604 : else
3605 7663 : current_fake_result_decl = build_tree_list (NULL, decl);
3606 :
3607 7708 : if (sym->attr.assign)
3608 1 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl);
3609 :
3610 : return decl;
3611 : }
3612 :
3613 :
3614 : /* Builds a function decl. The remaining parameters are the types of the
3615 : function arguments. Negative nargs indicates a varargs function. */
3616 :
3617 : static tree
3618 4884632 : build_library_function_decl_1 (tree name, const char *spec,
3619 : tree rettype, int nargs, va_list p)
3620 : {
3621 4884632 : vec<tree, va_gc> *arglist;
3622 4884632 : tree fntype;
3623 4884632 : tree fndecl;
3624 4884632 : int n;
3625 :
3626 : /* Library functions must be declared with global scope. */
3627 4884632 : gcc_assert (current_function_decl == NULL_TREE);
3628 :
3629 : /* Create a list of the argument types. */
3630 4884632 : vec_alloc (arglist, abs (nargs));
3631 24320766 : for (n = abs (nargs); n > 0; n--)
3632 : {
3633 14551502 : tree argtype = va_arg (p, tree);
3634 14551502 : arglist->quick_push (argtype);
3635 : }
3636 :
3637 : /* Build the function type and decl. */
3638 4884632 : if (nargs >= 0)
3639 13999970 : fntype = build_function_type_vec (rettype, arglist);
3640 : else
3641 585666 : fntype = build_varargs_function_type_vec (rettype, arglist);
3642 4884632 : if (spec)
3643 : {
3644 2851428 : tree attr_args = build_tree_list (NULL_TREE,
3645 2851428 : build_string (strlen (spec), spec));
3646 2851428 : tree attrs = tree_cons (get_identifier ("fn spec"),
3647 2851428 : attr_args, TYPE_ATTRIBUTES (fntype));
3648 2851428 : fntype = build_type_attribute_variant (fntype, attrs);
3649 : }
3650 4884632 : fndecl = build_decl (input_location,
3651 : FUNCTION_DECL, name, fntype);
3652 :
3653 : /* Mark this decl as external. */
3654 4884632 : DECL_EXTERNAL (fndecl) = 1;
3655 4884632 : TREE_PUBLIC (fndecl) = 1;
3656 :
3657 4884632 : pushdecl (fndecl);
3658 :
3659 4884632 : rest_of_decl_compilation (fndecl, 1, 0);
3660 :
3661 4884632 : return fndecl;
3662 : }
3663 :
3664 : /* Builds a function decl. The remaining parameters are the types of the
3665 : function arguments. Negative nargs indicates a varargs function. */
3666 :
3667 : tree
3668 2033204 : gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...)
3669 : {
3670 2033204 : tree ret;
3671 2033204 : va_list args;
3672 2033204 : va_start (args, nargs);
3673 2033204 : ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args);
3674 2033204 : va_end (args);
3675 2033204 : return ret;
3676 : }
3677 :
3678 : /* Builds a function decl. The remaining parameters are the types of the
3679 : function arguments. Negative nargs indicates a varargs function.
3680 : The SPEC parameter specifies the function argument and return type
3681 : specification according to the fnspec function type attribute. */
3682 :
3683 : tree
3684 2851428 : gfc_build_library_function_decl_with_spec (tree name, const char *spec,
3685 : tree rettype, int nargs, ...)
3686 : {
3687 2851428 : tree ret;
3688 2851428 : va_list args;
3689 2851428 : va_start (args, nargs);
3690 2851428 : if (flag_checking)
3691 : {
3692 2851428 : attr_fnspec fnspec (spec, strlen (spec));
3693 2851428 : fnspec.verify ();
3694 : }
3695 2851428 : ret = build_library_function_decl_1 (name, spec, rettype, nargs, args);
3696 2851428 : va_end (args);
3697 2851428 : return ret;
3698 : }
3699 :
3700 : static void
3701 32537 : gfc_build_intrinsic_function_decls (void)
3702 : {
3703 32537 : tree gfc_int4_type_node = gfc_get_int_type (4);
3704 32537 : tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node);
3705 32537 : tree gfc_int8_type_node = gfc_get_int_type (8);
3706 32537 : tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node);
3707 32537 : tree gfc_int16_type_node = gfc_get_int_type (16);
3708 32537 : tree gfc_logical4_type_node = gfc_get_logical_type (4);
3709 32537 : tree pchar1_type_node = gfc_get_pchar_type (1);
3710 32537 : tree pchar4_type_node = gfc_get_pchar_type (4);
3711 :
3712 : /* String functions. */
3713 32537 : gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec (
3714 : get_identifier (PREFIX("compare_string")), ". . R . R ",
3715 : integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node,
3716 : gfc_charlen_type_node, pchar1_type_node);
3717 32537 : DECL_PURE_P (gfor_fndecl_compare_string) = 1;
3718 32537 : TREE_NOTHROW (gfor_fndecl_compare_string) = 1;
3719 :
3720 32537 : gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec (
3721 : get_identifier (PREFIX("concat_string")), ". . W . R . R ",
3722 : void_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3723 : gfc_charlen_type_node, pchar1_type_node,
3724 : gfc_charlen_type_node, pchar1_type_node);
3725 32537 : TREE_NOTHROW (gfor_fndecl_concat_string) = 1;
3726 :
3727 32537 : gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec (
3728 : get_identifier (PREFIX("string_len_trim")), ". . R ",
3729 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node);
3730 32537 : DECL_PURE_P (gfor_fndecl_string_len_trim) = 1;
3731 32537 : TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1;
3732 :
3733 32537 : gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec (
3734 : get_identifier (PREFIX("string_index")), ". . R . R . ",
3735 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3736 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3737 32537 : DECL_PURE_P (gfor_fndecl_string_index) = 1;
3738 32537 : TREE_NOTHROW (gfor_fndecl_string_index) = 1;
3739 :
3740 32537 : gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec (
3741 : get_identifier (PREFIX("string_scan")), ". . R . R . ",
3742 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3743 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3744 32537 : DECL_PURE_P (gfor_fndecl_string_scan) = 1;
3745 32537 : TREE_NOTHROW (gfor_fndecl_string_scan) = 1;
3746 :
3747 32537 : gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec (
3748 : get_identifier (PREFIX("string_verify")), ". . R . R . ",
3749 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3750 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3751 32537 : DECL_PURE_P (gfor_fndecl_string_verify) = 1;
3752 32537 : TREE_NOTHROW (gfor_fndecl_string_verify) = 1;
3753 :
3754 32537 : gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec (
3755 : get_identifier (PREFIX("string_trim")), ". W w . R ",
3756 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3757 : build_pointer_type (pchar1_type_node), gfc_charlen_type_node,
3758 : pchar1_type_node);
3759 :
3760 32537 : gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec (
3761 : get_identifier (PREFIX("string_minmax")), ". W w . R ",
3762 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3763 : build_pointer_type (pchar1_type_node), integer_type_node,
3764 : integer_type_node);
3765 :
3766 32537 : gfor_fndecl_string_split = gfc_build_library_function_decl_with_spec (
3767 : get_identifier (PREFIX ("string_split")), ". . R . R . . ",
3768 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3769 : gfc_charlen_type_node, pchar1_type_node, gfc_charlen_type_node,
3770 : gfc_logical4_type_node);
3771 :
3772 32537 : {
3773 32537 : tree copy_helper_ptr_type;
3774 32537 : tree copy_helper_fn_type;
3775 :
3776 32537 : copy_helper_fn_type = build_function_type_list (void_type_node,
3777 : pvoid_type_node,
3778 : pvoid_type_node,
3779 : NULL_TREE);
3780 32537 : copy_helper_ptr_type = build_pointer_type (copy_helper_fn_type);
3781 :
3782 32537 : gfor_fndecl_cfi_deep_copy_array
3783 32537 : = gfc_build_library_function_decl_with_spec (
3784 : get_identifier (PREFIX ("cfi_deep_copy_array")), ". R R . ",
3785 : void_type_node, 3, pvoid_type_node, pvoid_type_node,
3786 : copy_helper_ptr_type);
3787 : }
3788 :
3789 32537 : gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec (
3790 : get_identifier (PREFIX("adjustl")), ". W . R ",
3791 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3792 : pchar1_type_node);
3793 32537 : TREE_NOTHROW (gfor_fndecl_adjustl) = 1;
3794 :
3795 32537 : gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec (
3796 : get_identifier (PREFIX("adjustr")), ". W . R ",
3797 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3798 : pchar1_type_node);
3799 32537 : TREE_NOTHROW (gfor_fndecl_adjustr) = 1;
3800 :
3801 32537 : gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec (
3802 : get_identifier (PREFIX("select_string")), ". R . R . ",
3803 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3804 : pchar1_type_node, gfc_charlen_type_node);
3805 32537 : DECL_PURE_P (gfor_fndecl_select_string) = 1;
3806 32537 : TREE_NOTHROW (gfor_fndecl_select_string) = 1;
3807 :
3808 32537 : gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec (
3809 : get_identifier (PREFIX("compare_string_char4")), ". . R . R ",
3810 : integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node,
3811 : gfc_charlen_type_node, pchar4_type_node);
3812 32537 : DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1;
3813 32537 : TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1;
3814 :
3815 32537 : gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec (
3816 : get_identifier (PREFIX("concat_string_char4")), ". . W . R . R ",
3817 : void_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3818 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3819 : pchar4_type_node);
3820 32537 : TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1;
3821 :
3822 32537 : gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec (
3823 : get_identifier (PREFIX("string_len_trim_char4")), ". . R ",
3824 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node);
3825 32537 : DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1;
3826 32537 : TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1;
3827 :
3828 32537 : gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec (
3829 : get_identifier (PREFIX("string_index_char4")), ". . R . R . ",
3830 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3831 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3832 32537 : DECL_PURE_P (gfor_fndecl_string_index_char4) = 1;
3833 32537 : TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1;
3834 :
3835 32537 : gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec (
3836 : get_identifier (PREFIX("string_scan_char4")), ". . R . R . ",
3837 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3838 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3839 32537 : DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1;
3840 32537 : TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1;
3841 :
3842 32537 : gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec (
3843 : get_identifier (PREFIX("string_verify_char4")), ". . R . R . ",
3844 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3845 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3846 32537 : DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1;
3847 32537 : TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1;
3848 :
3849 32537 : gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec (
3850 : get_identifier (PREFIX("string_trim_char4")), ". W w . R ",
3851 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3852 : build_pointer_type (pchar4_type_node), gfc_charlen_type_node,
3853 : pchar4_type_node);
3854 :
3855 32537 : gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec (
3856 : get_identifier (PREFIX("string_minmax_char4")), ". W w . R ",
3857 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3858 : build_pointer_type (pchar4_type_node), integer_type_node,
3859 : integer_type_node);
3860 :
3861 32537 : gfor_fndecl_string_split_char4 = gfc_build_library_function_decl_with_spec (
3862 : get_identifier (PREFIX ("string_split_char4")), ". . R . R . . ",
3863 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3864 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3865 : gfc_logical4_type_node);
3866 :
3867 32537 : gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec (
3868 : get_identifier (PREFIX("adjustl_char4")), ". W . R ",
3869 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3870 : pchar4_type_node);
3871 32537 : TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1;
3872 :
3873 32537 : gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec (
3874 : get_identifier (PREFIX("adjustr_char4")), ". W . R ",
3875 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3876 : pchar4_type_node);
3877 32537 : TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1;
3878 :
3879 32537 : gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec (
3880 : get_identifier (PREFIX("select_string_char4")), ". R . R . ",
3881 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3882 : pvoid_type_node, gfc_charlen_type_node);
3883 32537 : DECL_PURE_P (gfor_fndecl_select_string_char4) = 1;
3884 32537 : TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1;
3885 :
3886 :
3887 : /* Conversion between character kinds. */
3888 :
3889 32537 : gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec (
3890 : get_identifier (PREFIX("convert_char1_to_char4")), ". w . R ",
3891 : void_type_node, 3, build_pointer_type (pchar4_type_node),
3892 : gfc_charlen_type_node, pchar1_type_node);
3893 :
3894 32537 : gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec (
3895 : get_identifier (PREFIX("convert_char4_to_char1")), ". w . R ",
3896 : void_type_node, 3, build_pointer_type (pchar1_type_node),
3897 : gfc_charlen_type_node, pchar4_type_node);
3898 :
3899 : /* Misc. functions. */
3900 :
3901 32537 : gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec (
3902 : get_identifier (PREFIX("ttynam")), ". W . . ",
3903 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3904 : integer_type_node);
3905 :
3906 32537 : gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec (
3907 : get_identifier (PREFIX("fdate")), ". W . ",
3908 : void_type_node, 2, pchar_type_node, gfc_charlen_type_node);
3909 :
3910 32537 : gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec (
3911 : get_identifier (PREFIX("ctime")), ". W . . ",
3912 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3913 : gfc_int8_type_node);
3914 :
3915 32537 : gfor_fndecl_random_init = gfc_build_library_function_decl (
3916 : get_identifier (PREFIX("random_init")),
3917 : void_type_node, 3, gfc_logical4_type_node, gfc_logical4_type_node,
3918 : gfc_int4_type_node);
3919 :
3920 : // gfor_fndecl_caf_rand_init is defined in the lib-coarray section below.
3921 :
3922 32537 : gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec (
3923 : get_identifier (PREFIX("selected_char_kind")), ". . R ",
3924 : gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node);
3925 32537 : DECL_PURE_P (gfor_fndecl_sc_kind) = 1;
3926 32537 : TREE_NOTHROW (gfor_fndecl_sc_kind) = 1;
3927 :
3928 32537 : gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec (
3929 : get_identifier (PREFIX("selected_int_kind")), ". R ",
3930 : gfc_int4_type_node, 1, pvoid_type_node);
3931 32537 : DECL_PURE_P (gfor_fndecl_si_kind) = 1;
3932 32537 : TREE_NOTHROW (gfor_fndecl_si_kind) = 1;
3933 :
3934 32537 : gfor_fndecl_sl_kind = gfc_build_library_function_decl_with_spec (
3935 : get_identifier (PREFIX("selected_logical_kind")), ". R ",
3936 : gfc_int4_type_node, 1, pvoid_type_node);
3937 32537 : DECL_PURE_P (gfor_fndecl_sl_kind) = 1;
3938 32537 : TREE_NOTHROW (gfor_fndecl_sl_kind) = 1;
3939 :
3940 32537 : gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec (
3941 : get_identifier (PREFIX("selected_real_kind2008")), ". R R ",
3942 : gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node,
3943 : pvoid_type_node);
3944 32537 : DECL_PURE_P (gfor_fndecl_sr_kind) = 1;
3945 32537 : TREE_NOTHROW (gfor_fndecl_sr_kind) = 1;
3946 :
3947 32537 : gfor_fndecl_system_clock4 = gfc_build_library_function_decl (
3948 : get_identifier (PREFIX("system_clock_4")),
3949 : void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node,
3950 : gfc_pint4_type_node);
3951 :
3952 32537 : gfor_fndecl_system_clock8 = gfc_build_library_function_decl (
3953 : get_identifier (PREFIX("system_clock_8")),
3954 : void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node,
3955 : gfc_pint8_type_node);
3956 :
3957 : /* Power functions. */
3958 32537 : {
3959 32537 : tree ctype, rtype, itype, jtype;
3960 32537 : int rkind, ikind, jkind;
3961 : #define NIKINDS 3
3962 : #define NRKINDS 4
3963 : #define NUKINDS 5
3964 32537 : static const int ikinds[NIKINDS] = {4, 8, 16};
3965 32537 : static const int rkinds[NRKINDS] = {4, 8, 10, 16};
3966 32537 : static const int ukinds[NUKINDS] = {1, 2, 4, 8, 16};
3967 32537 : char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */
3968 :
3969 130148 : for (ikind=0; ikind < NIKINDS; ikind++)
3970 : {
3971 97611 : itype = gfc_get_int_type (ikinds[ikind]);
3972 :
3973 488055 : for (jkind=0; jkind < NIKINDS; jkind++)
3974 : {
3975 292833 : jtype = gfc_get_int_type (ikinds[jkind]);
3976 292833 : if (itype && jtype)
3977 : {
3978 290788 : sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind],
3979 : ikinds[jkind]);
3980 581576 : gfor_fndecl_math_powi[jkind][ikind].integer =
3981 290788 : gfc_build_library_function_decl (get_identifier (name),
3982 : jtype, 2, jtype, itype);
3983 290788 : TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3984 290788 : TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3985 : }
3986 : }
3987 :
3988 488055 : for (rkind = 0; rkind < NRKINDS; rkind ++)
3989 : {
3990 390444 : rtype = gfc_get_real_type (rkinds[rkind]);
3991 390444 : if (rtype && itype)
3992 : {
3993 388808 : sprintf (name, PREFIX("pow_r%d_i%d"),
3994 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3995 : ikinds[ikind]);
3996 777616 : gfor_fndecl_math_powi[rkind][ikind].real =
3997 388808 : gfc_build_library_function_decl (get_identifier (name),
3998 : rtype, 2, rtype, itype);
3999 388808 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
4000 388808 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
4001 : }
4002 :
4003 390444 : ctype = gfc_get_complex_type (rkinds[rkind]);
4004 390444 : if (ctype && itype)
4005 : {
4006 388808 : sprintf (name, PREFIX("pow_c%d_i%d"),
4007 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
4008 : ikinds[ikind]);
4009 777616 : gfor_fndecl_math_powi[rkind][ikind].cmplx =
4010 388808 : gfc_build_library_function_decl (get_identifier (name),
4011 : ctype, 2,ctype, itype);
4012 388808 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
4013 388808 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
4014 : }
4015 : }
4016 : /* For unsigned types, we have every power for every type. */
4017 585666 : for (int base = 0; base < NUKINDS; base++)
4018 : {
4019 488055 : tree base_type = gfc_get_unsigned_type (ukinds[base]);
4020 3416385 : for (int expon = 0; expon < NUKINDS; expon++)
4021 : {
4022 2440275 : tree expon_type = gfc_get_unsigned_type (ukinds[base]);
4023 2440275 : if (base_type && expon_type)
4024 : {
4025 18450 : sprintf (name, PREFIX("pow_m%d_m%d"), ukinds[base],
4026 18450 : ukinds[expon]);
4027 36900 : gfor_fndecl_unsigned_pow_list [base][expon] =
4028 18450 : gfc_build_library_function_decl (get_identifier (name),
4029 : base_type, 2, base_type, expon_type);
4030 18450 : TREE_READONLY (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
4031 18450 : TREE_NOTHROW (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
4032 : }
4033 : }
4034 : }
4035 : }
4036 : #undef NIKINDS
4037 : #undef NRKINDS
4038 : #undef NUKINDS
4039 : }
4040 :
4041 32537 : gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl (
4042 : get_identifier (PREFIX("ishftc4")),
4043 : gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node,
4044 : gfc_int4_type_node);
4045 32537 : TREE_READONLY (gfor_fndecl_math_ishftc4) = 1;
4046 32537 : TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1;
4047 :
4048 32537 : gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl (
4049 : get_identifier (PREFIX("ishftc8")),
4050 : gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node,
4051 : gfc_int4_type_node);
4052 32537 : TREE_READONLY (gfor_fndecl_math_ishftc8) = 1;
4053 32537 : TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1;
4054 :
4055 32537 : if (gfc_int16_type_node)
4056 : {
4057 32128 : gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl (
4058 : get_identifier (PREFIX("ishftc16")),
4059 : gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node,
4060 : gfc_int4_type_node);
4061 32128 : TREE_READONLY (gfor_fndecl_math_ishftc16) = 1;
4062 32128 : TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1;
4063 : }
4064 :
4065 : /* BLAS functions. */
4066 32537 : {
4067 32537 : tree pint = build_pointer_type (integer_type_node);
4068 32537 : tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind));
4069 32537 : tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind));
4070 32537 : tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind));
4071 32537 : tree pz = build_pointer_type
4072 32537 : (gfc_get_complex_type (gfc_default_double_kind));
4073 :
4074 65074 : gfor_fndecl_sgemm = gfc_build_library_function_decl
4075 33316 : (get_identifier
4076 : (flag_underscoring ? "sgemm_" : "sgemm"),
4077 : void_type_node, 15, pchar_type_node,
4078 : pchar_type_node, pint, pint, pint, ps, ps, pint,
4079 : ps, pint, ps, ps, pint, integer_type_node,
4080 : integer_type_node);
4081 65074 : gfor_fndecl_dgemm = gfc_build_library_function_decl
4082 33316 : (get_identifier
4083 : (flag_underscoring ? "dgemm_" : "dgemm"),
4084 : void_type_node, 15, pchar_type_node,
4085 : pchar_type_node, pint, pint, pint, pd, pd, pint,
4086 : pd, pint, pd, pd, pint, integer_type_node,
4087 : integer_type_node);
4088 65074 : gfor_fndecl_cgemm = gfc_build_library_function_decl
4089 33316 : (get_identifier
4090 : (flag_underscoring ? "cgemm_" : "cgemm"),
4091 : void_type_node, 15, pchar_type_node,
4092 : pchar_type_node, pint, pint, pint, pc, pc, pint,
4093 : pc, pint, pc, pc, pint, integer_type_node,
4094 : integer_type_node);
4095 65074 : gfor_fndecl_zgemm = gfc_build_library_function_decl
4096 33316 : (get_identifier
4097 : (flag_underscoring ? "zgemm_" : "zgemm"),
4098 : void_type_node, 15, pchar_type_node,
4099 : pchar_type_node, pint, pint, pint, pz, pz, pint,
4100 : pz, pint, pz, pz, pint, integer_type_node,
4101 : integer_type_node);
4102 : }
4103 :
4104 : /* Other functions. */
4105 32537 : gfor_fndecl_iargc = gfc_build_library_function_decl (
4106 : get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0);
4107 32537 : TREE_NOTHROW (gfor_fndecl_iargc) = 1;
4108 :
4109 32537 : gfor_fndecl_kill_sub = gfc_build_library_function_decl (
4110 : get_identifier (PREFIX ("kill_sub")), void_type_node,
4111 : 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node);
4112 :
4113 32537 : gfor_fndecl_kill = gfc_build_library_function_decl (
4114 : get_identifier (PREFIX ("kill")), gfc_int4_type_node,
4115 : 2, gfc_int4_type_node, gfc_int4_type_node);
4116 :
4117 32537 : gfor_fndecl_is_contiguous0 = gfc_build_library_function_decl_with_spec (
4118 : get_identifier (PREFIX("is_contiguous0")), ". R ",
4119 : gfc_int4_type_node, 1, pvoid_type_node);
4120 32537 : DECL_PURE_P (gfor_fndecl_is_contiguous0) = 1;
4121 32537 : TREE_NOTHROW (gfor_fndecl_is_contiguous0) = 1;
4122 :
4123 32537 : gfor_fndecl_fstat_i4_sub = gfc_build_library_function_decl (
4124 : get_identifier (PREFIX ("fstat_i4_sub")), void_type_node,
4125 : 3, gfc_pint4_type_node, gfc_pint4_type_node, gfc_pint4_type_node);
4126 :
4127 32537 : gfor_fndecl_fstat_i8_sub = gfc_build_library_function_decl (
4128 : get_identifier (PREFIX ("fstat_i8_sub")), void_type_node,
4129 : 3, gfc_pint8_type_node, gfc_pint8_type_node, gfc_pint8_type_node);
4130 :
4131 32537 : gfor_fndecl_lstat_i4_sub = gfc_build_library_function_decl (
4132 : get_identifier (PREFIX ("lstat_i4_sub")), void_type_node,
4133 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
4134 : gfc_charlen_type_node);
4135 :
4136 32537 : gfor_fndecl_lstat_i8_sub = gfc_build_library_function_decl (
4137 : get_identifier (PREFIX ("lstat_i8_sub")), void_type_node,
4138 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
4139 : gfc_charlen_type_node);
4140 :
4141 32537 : gfor_fndecl_stat_i4_sub = gfc_build_library_function_decl (
4142 : get_identifier (PREFIX ("stat_i4_sub")), void_type_node,
4143 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
4144 : gfc_charlen_type_node);
4145 :
4146 32537 : gfor_fndecl_stat_i8_sub = gfc_build_library_function_decl (
4147 : get_identifier (PREFIX ("stat_i8_sub")), void_type_node,
4148 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
4149 : gfc_charlen_type_node);
4150 32537 : }
4151 :
4152 :
4153 : /* Make prototypes for runtime library functions. */
4154 :
4155 : void
4156 32537 : gfc_build_builtin_function_decls (void)
4157 : {
4158 32537 : tree gfc_int8_type_node = gfc_get_int_type (8);
4159 :
4160 32537 : gfor_fndecl_stop_numeric = gfc_build_library_function_decl (
4161 : get_identifier (PREFIX("stop_numeric")),
4162 : void_type_node, 2, integer_type_node, boolean_type_node);
4163 : /* STOP doesn't return. */
4164 32537 : TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1;
4165 :
4166 32537 : gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec (
4167 : get_identifier (PREFIX("stop_string")), ". R . . ",
4168 : void_type_node, 3, pchar_type_node, size_type_node,
4169 : boolean_type_node);
4170 : /* STOP doesn't return. */
4171 32537 : TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1;
4172 :
4173 32537 : gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl (
4174 : get_identifier (PREFIX("error_stop_numeric")),
4175 : void_type_node, 2, integer_type_node, boolean_type_node);
4176 : /* ERROR STOP doesn't return. */
4177 32537 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1;
4178 :
4179 32537 : gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec (
4180 : get_identifier (PREFIX("error_stop_string")), ". R . . ",
4181 : void_type_node, 3, pchar_type_node, size_type_node,
4182 : boolean_type_node);
4183 : /* ERROR STOP doesn't return. */
4184 32537 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1;
4185 :
4186 32537 : gfor_fndecl_pause_numeric = gfc_build_library_function_decl (
4187 : get_identifier (PREFIX("pause_numeric")),
4188 : void_type_node, 1, gfc_int8_type_node);
4189 :
4190 32537 : gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec (
4191 : get_identifier (PREFIX("pause_string")), ". R . ",
4192 : void_type_node, 2, pchar_type_node, size_type_node);
4193 :
4194 32537 : gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec (
4195 : get_identifier (PREFIX("runtime_error")), ". R ",
4196 : void_type_node, -1, pchar_type_node);
4197 : /* The runtime_error function does not return. */
4198 32537 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1;
4199 :
4200 32537 : gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec (
4201 : get_identifier (PREFIX("runtime_error_at")), ". R R ",
4202 : void_type_node, -2, pchar_type_node, pchar_type_node);
4203 : /* The runtime_error_at function does not return. */
4204 32537 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1;
4205 :
4206 32537 : gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec (
4207 : get_identifier (PREFIX("runtime_warning_at")), ". R R ",
4208 : void_type_node, -2, pchar_type_node, pchar_type_node);
4209 :
4210 32537 : gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec (
4211 : get_identifier (PREFIX("generate_error")), ". W . R ",
4212 : void_type_node, 3, pvoid_type_node, integer_type_node,
4213 : pchar_type_node);
4214 :
4215 32537 : gfor_fndecl_os_error_at = gfc_build_library_function_decl_with_spec (
4216 : get_identifier (PREFIX("os_error_at")), ". R R ",
4217 : void_type_node, -2, pchar_type_node, pchar_type_node);
4218 : /* The os_error_at function does not return. */
4219 32537 : TREE_THIS_VOLATILE (gfor_fndecl_os_error_at) = 1;
4220 :
4221 32537 : gfor_fndecl_set_args = gfc_build_library_function_decl (
4222 : get_identifier (PREFIX("set_args")),
4223 : void_type_node, 2, integer_type_node,
4224 : build_pointer_type (pchar_type_node));
4225 :
4226 32537 : gfor_fndecl_set_fpe = gfc_build_library_function_decl (
4227 : get_identifier (PREFIX("set_fpe")),
4228 : void_type_node, 1, integer_type_node);
4229 :
4230 32537 : gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl (
4231 : get_identifier (PREFIX("ieee_procedure_entry")),
4232 : void_type_node, 1, pvoid_type_node);
4233 :
4234 32537 : gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl (
4235 : get_identifier (PREFIX("ieee_procedure_exit")),
4236 : void_type_node, 1, pvoid_type_node);
4237 :
4238 : /* Keep the array dimension in sync with the call, later in this file. */
4239 32537 : gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec (
4240 : get_identifier (PREFIX("set_options")), ". . R ",
4241 : void_type_node, 2, integer_type_node,
4242 : build_pointer_type (integer_type_node));
4243 :
4244 32537 : gfor_fndecl_set_convert = gfc_build_library_function_decl (
4245 : get_identifier (PREFIX("set_convert")),
4246 : void_type_node, 1, integer_type_node);
4247 :
4248 32537 : gfor_fndecl_set_record_marker = gfc_build_library_function_decl (
4249 : get_identifier (PREFIX("set_record_marker")),
4250 : void_type_node, 1, integer_type_node);
4251 :
4252 32537 : gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl (
4253 : get_identifier (PREFIX("set_max_subrecord_length")),
4254 : void_type_node, 1, integer_type_node);
4255 :
4256 32537 : gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec (
4257 : get_identifier (PREFIX("internal_pack")), ". r ",
4258 : pvoid_type_node, 1, pvoid_type_node);
4259 :
4260 32537 : gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec (
4261 : get_identifier (PREFIX("internal_unpack")), ". w R ",
4262 : void_type_node, 2, pvoid_type_node, pvoid_type_node);
4263 :
4264 32537 : gfor_fndecl_in_pack_class = gfc_build_library_function_decl_with_spec (
4265 : get_identifier (PREFIX ("internal_pack_class")), ". w R r r ",
4266 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4267 : integer_type_node);
4268 :
4269 32537 : gfor_fndecl_in_unpack_class = gfc_build_library_function_decl_with_spec (
4270 : get_identifier (PREFIX ("internal_unpack_class")), ". w R r r ",
4271 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4272 : integer_type_node);
4273 :
4274 32537 : gfor_fndecl_associated = gfc_build_library_function_decl_with_spec (
4275 : get_identifier (PREFIX ("associated")), ". R R ", integer_type_node, 2,
4276 : ppvoid_type_node, ppvoid_type_node);
4277 32537 : DECL_PURE_P (gfor_fndecl_associated) = 1;
4278 32537 : TREE_NOTHROW (gfor_fndecl_associated) = 1;
4279 :
4280 : /* Coarray library calls. */
4281 32537 : if (flag_coarray == GFC_FCOARRAY_LIB)
4282 : {
4283 531 : tree pint_type, pppchar_type, psize_type;
4284 :
4285 531 : pint_type = build_pointer_type (integer_type_node);
4286 531 : pppchar_type
4287 531 : = build_pointer_type (build_pointer_type (pchar_type_node));
4288 531 : psize_type = build_pointer_type (size_type_node);
4289 :
4290 531 : gfor_fndecl_caf_init = gfc_build_library_function_decl_with_spec (
4291 : get_identifier (PREFIX("caf_init")), ". W W ",
4292 : void_type_node, 2, pint_type, pppchar_type);
4293 :
4294 531 : gfor_fndecl_caf_finalize = gfc_build_library_function_decl (
4295 : get_identifier (PREFIX("caf_finalize")), void_type_node, 0);
4296 :
4297 531 : gfor_fndecl_caf_this_image = gfc_build_library_function_decl_with_spec (
4298 : get_identifier (PREFIX ("caf_this_image")), ". r ", integer_type_node,
4299 : 1, pvoid_type_node);
4300 :
4301 531 : gfor_fndecl_caf_num_images = gfc_build_library_function_decl (
4302 : get_identifier (PREFIX("caf_num_images")), integer_type_node,
4303 : 2, integer_type_node, integer_type_node);
4304 :
4305 531 : gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec (
4306 : get_identifier (PREFIX("caf_register")), ". . . W w w w . ",
4307 : void_type_node, 7,
4308 : size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node,
4309 : pint_type, pchar_type_node, size_type_node);
4310 :
4311 531 : gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec (
4312 : get_identifier (PREFIX("caf_deregister")), ". W . w w . ",
4313 : void_type_node, 5,
4314 : ppvoid_type_node, integer_type_node, pint_type, pchar_type_node,
4315 : size_type_node);
4316 :
4317 531 : gfor_fndecl_caf_register_accessor
4318 531 : = gfc_build_library_function_decl_with_spec (
4319 : get_identifier (PREFIX ("caf_register_accessor")), ". r r ",
4320 : void_type_node, 2, integer_type_node, pvoid_type_node);
4321 :
4322 531 : gfor_fndecl_caf_register_accessors_finish
4323 531 : = gfc_build_library_function_decl_with_spec (
4324 : get_identifier (PREFIX ("caf_register_accessors_finish")), ". ",
4325 : void_type_node, 0);
4326 :
4327 531 : gfor_fndecl_caf_get_remote_function_index
4328 531 : = gfc_build_library_function_decl_with_spec (
4329 : get_identifier (PREFIX ("caf_get_remote_function_index")), ". r ",
4330 : integer_type_node, 1, integer_type_node);
4331 :
4332 531 : gfor_fndecl_caf_get_from_remote
4333 531 : = gfc_build_library_function_decl_with_spec (
4334 : get_identifier (PREFIX ("caf_get_from_remote")),
4335 : ". r r r r r w w w r r w r w r r ", void_type_node, 15,
4336 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4337 : size_type_node, ppvoid_type_node, psize_type, pvoid_type_node,
4338 : boolean_type_node, integer_type_node, pvoid_type_node, size_type_node,
4339 : pint_type, pvoid_type_node, pint_type);
4340 :
4341 531 : gfor_fndecl_caf_send_to_remote
4342 531 : = gfc_build_library_function_decl_with_spec (
4343 : get_identifier (PREFIX ("caf_send_to_remote")),
4344 : ". r r r r r r r r r w r w r r ", void_type_node, 14, pvoid_type_node,
4345 : pvoid_type_node, psize_type, integer_type_node, size_type_node,
4346 : ppvoid_type_node, psize_type, pvoid_type_node, integer_type_node,
4347 : pvoid_type_node, size_type_node, pint_type, pvoid_type_node,
4348 : pint_type);
4349 :
4350 531 : gfor_fndecl_caf_transfer_between_remotes
4351 531 : = gfc_build_library_function_decl_with_spec (
4352 : get_identifier (PREFIX ("caf_transfer_between_remotes")),
4353 : ". r r r r r r r r r r r r r r r r w w r r ", void_type_node, 20,
4354 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4355 : integer_type_node, pvoid_type_node, size_type_node, pvoid_type_node,
4356 : pvoid_type_node, psize_type, integer_type_node, integer_type_node,
4357 : pvoid_type_node, size_type_node, size_type_node, boolean_type_node,
4358 : pint_type, pint_type, pvoid_type_node, pint_type);
4359 :
4360 531 : gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec (
4361 : get_identifier (PREFIX ("caf_sync_all")), ". w w . ", void_type_node, 3,
4362 : pint_type, pchar_type_node, size_type_node);
4363 :
4364 531 : gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec (
4365 : get_identifier (PREFIX("caf_sync_memory")), ". w w . ", void_type_node,
4366 : 3, pint_type, pchar_type_node, size_type_node);
4367 :
4368 531 : gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec (
4369 : get_identifier (PREFIX("caf_sync_images")), ". . r w w . ", void_type_node,
4370 : 5, integer_type_node, pint_type, pint_type,
4371 : pchar_type_node, size_type_node);
4372 :
4373 531 : gfor_fndecl_caf_error_stop = gfc_build_library_function_decl (
4374 : get_identifier (PREFIX("caf_error_stop")),
4375 : void_type_node, 1, integer_type_node);
4376 : /* CAF's ERROR STOP doesn't return. */
4377 531 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1;
4378 :
4379 531 : gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec (
4380 : get_identifier (PREFIX("caf_error_stop_str")), ". r . ",
4381 : void_type_node, 2, pchar_type_node, size_type_node);
4382 : /* CAF's ERROR STOP doesn't return. */
4383 531 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1;
4384 :
4385 531 : gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl (
4386 : get_identifier (PREFIX("caf_stop_numeric")),
4387 : void_type_node, 1, integer_type_node);
4388 : /* CAF's STOP doesn't return. */
4389 531 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1;
4390 :
4391 531 : gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec (
4392 : get_identifier (PREFIX("caf_stop_str")), ". r . ",
4393 : void_type_node, 2, pchar_type_node, size_type_node);
4394 : /* CAF's STOP doesn't return. */
4395 531 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1;
4396 :
4397 531 : gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec (
4398 : get_identifier (PREFIX("caf_atomic_define")), ". r . . w w . . ",
4399 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4400 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4401 :
4402 531 : gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec (
4403 : get_identifier (PREFIX("caf_atomic_ref")), ". r . . w w . . ",
4404 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4405 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4406 :
4407 531 : gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec (
4408 : get_identifier (PREFIX("caf_atomic_cas")), ". r . . w r r w . . ",
4409 : void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node,
4410 : pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4411 : integer_type_node, integer_type_node);
4412 :
4413 531 : gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec (
4414 : get_identifier (PREFIX("caf_atomic_op")), ". . r . . r w w . . ",
4415 : void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node,
4416 : integer_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4417 : integer_type_node, integer_type_node);
4418 :
4419 531 : gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec (
4420 : get_identifier (PREFIX("caf_lock")), ". r . . w w w . ",
4421 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4422 : pint_type, pint_type, pchar_type_node, size_type_node);
4423 :
4424 531 : gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec (
4425 : get_identifier (PREFIX("caf_unlock")), ". r . . w w . ",
4426 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4427 : pint_type, pchar_type_node, size_type_node);
4428 :
4429 531 : gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec (
4430 : get_identifier (PREFIX("caf_event_post")), ". r . . w w . ",
4431 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4432 : pint_type, pchar_type_node, size_type_node);
4433 :
4434 531 : gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec (
4435 : get_identifier (PREFIX("caf_event_wait")), ". r . . w w . ",
4436 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4437 : pint_type, pchar_type_node, size_type_node);
4438 :
4439 531 : gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec (
4440 : get_identifier (PREFIX("caf_event_query")), ". r . . w w ",
4441 : void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node,
4442 : pint_type, pint_type);
4443 :
4444 531 : gfor_fndecl_caf_fail_image = gfc_build_library_function_decl (
4445 : get_identifier (PREFIX("caf_fail_image")), void_type_node, 0);
4446 : /* CAF's FAIL doesn't return. */
4447 531 : TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1;
4448 :
4449 531 : gfor_fndecl_caf_failed_images
4450 531 : = gfc_build_library_function_decl_with_spec (
4451 : get_identifier (PREFIX("caf_failed_images")), ". w . r ",
4452 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4453 : integer_type_node);
4454 :
4455 531 : gfor_fndecl_caf_form_team = gfc_build_library_function_decl_with_spec (
4456 : get_identifier (PREFIX ("caf_form_team")), ". r w r w w w ",
4457 : void_type_node, 6, integer_type_node, ppvoid_type_node, pint_type,
4458 : pint_type, pchar_type_node, size_type_node);
4459 :
4460 531 : gfor_fndecl_caf_change_team = gfc_build_library_function_decl_with_spec (
4461 : get_identifier (PREFIX ("caf_change_team")), ". r w w w ",
4462 : void_type_node, 4, pvoid_type_node, pint_type, pchar_type_node,
4463 : size_type_node);
4464 :
4465 531 : gfor_fndecl_caf_end_team = gfc_build_library_function_decl_with_spec (
4466 : get_identifier (PREFIX ("caf_end_team")), ". w w w ", void_type_node, 3,
4467 : pint_type, pchar_type_node, size_type_node);
4468 :
4469 531 : gfor_fndecl_caf_get_team = gfc_build_library_function_decl_with_spec (
4470 : get_identifier (PREFIX ("caf_get_team")), ". r ", pvoid_type_node, 1,
4471 : pint_type);
4472 :
4473 531 : gfor_fndecl_caf_sync_team = gfc_build_library_function_decl_with_spec (
4474 : get_identifier (PREFIX ("caf_sync_team")), ". r w w w ", void_type_node,
4475 : 4, pvoid_type_node, pint_type, pchar_type_node, size_type_node);
4476 :
4477 531 : gfor_fndecl_caf_team_number = gfc_build_library_function_decl_with_spec (
4478 : get_identifier (PREFIX ("caf_team_number")), ". r ", integer_type_node,
4479 : 1, pvoid_type_node);
4480 :
4481 531 : gfor_fndecl_caf_image_status = gfc_build_library_function_decl_with_spec (
4482 : get_identifier (PREFIX ("caf_image_status")), ". r r ",
4483 : integer_type_node, 2, integer_type_node, ppvoid_type_node);
4484 :
4485 531 : gfor_fndecl_caf_stopped_images
4486 531 : = gfc_build_library_function_decl_with_spec (
4487 : get_identifier (PREFIX("caf_stopped_images")), ". w r r ",
4488 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4489 : integer_type_node);
4490 :
4491 531 : gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec (
4492 : get_identifier (PREFIX("caf_co_broadcast")), ". w . w w . ",
4493 : void_type_node, 5, pvoid_type_node, integer_type_node,
4494 : pint_type, pchar_type_node, size_type_node);
4495 :
4496 531 : gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec (
4497 : get_identifier (PREFIX("caf_co_max")), ". w . w w . . ",
4498 : void_type_node, 6, pvoid_type_node, integer_type_node,
4499 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4500 :
4501 531 : gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec (
4502 : get_identifier (PREFIX("caf_co_min")), ". w . w w . . ",
4503 : void_type_node, 6, pvoid_type_node, integer_type_node,
4504 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4505 :
4506 531 : gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec (
4507 : get_identifier (PREFIX("caf_co_reduce")), ". w r . . w w . . ",
4508 : void_type_node, 8, pvoid_type_node,
4509 : build_pointer_type (build_varargs_function_type_list (void_type_node,
4510 : NULL_TREE)),
4511 : integer_type_node, integer_type_node, pint_type, pchar_type_node,
4512 : integer_type_node, size_type_node);
4513 :
4514 531 : gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec (
4515 : get_identifier (PREFIX("caf_co_sum")), ". w . w w . ",
4516 : void_type_node, 5, pvoid_type_node, integer_type_node,
4517 : pint_type, pchar_type_node, size_type_node);
4518 :
4519 531 : gfor_fndecl_caf_is_present_on_remote
4520 531 : = gfc_build_library_function_decl_with_spec (
4521 : get_identifier (PREFIX ("caf_is_present_on_remote")), ". r r r r r ",
4522 : integer_type_node, 5, pvoid_type_node, integer_type_node,
4523 : integer_type_node, pvoid_type_node, size_type_node);
4524 :
4525 531 : gfor_fndecl_caf_random_init = gfc_build_library_function_decl (
4526 : get_identifier (PREFIX("caf_random_init")),
4527 : void_type_node, 2, logical_type_node, logical_type_node);
4528 : }
4529 :
4530 32537 : gfc_build_intrinsic_function_decls ();
4531 32537 : gfc_build_intrinsic_lib_fndecls ();
4532 32537 : gfc_build_io_library_fndecls ();
4533 32537 : }
4534 :
4535 :
4536 : /* Evaluate the length of dummy character variables. */
4537 :
4538 : static void
4539 798 : gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl,
4540 : gfc_wrapped_block *block)
4541 : {
4542 798 : stmtblock_t init;
4543 :
4544 798 : gfc_finish_decl (cl->backend_decl);
4545 :
4546 798 : gfc_start_block (&init);
4547 :
4548 : /* Evaluate the string length expression. */
4549 798 : gfc_conv_string_length (cl, NULL, &init);
4550 :
4551 798 : gfc_trans_vla_type_sizes (sym, &init);
4552 :
4553 798 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4554 798 : }
4555 :
4556 :
4557 : /* Allocate and cleanup an automatic character variable. */
4558 :
4559 : static void
4560 384 : gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block)
4561 : {
4562 384 : stmtblock_t init;
4563 384 : tree decl;
4564 384 : tree tmp;
4565 384 : bool back;
4566 :
4567 384 : gcc_assert (sym->backend_decl);
4568 384 : gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length);
4569 :
4570 384 : gfc_init_block (&init);
4571 :
4572 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
4573 : function result (ie. proc_name = proc_name->result), gfc_add_init_cleanup
4574 : must be called with the last, optional argument false so that the process
4575 : ing of the character length occurs after the processing of the result. */
4576 384 : back = sym->fn_result_dep;
4577 :
4578 : /* Evaluate the string length expression. */
4579 384 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
4580 :
4581 384 : gfc_trans_vla_type_sizes (sym, &init);
4582 :
4583 384 : decl = sym->backend_decl;
4584 :
4585 : /* Emit a DECL_EXPR for this variable, which will cause the
4586 : gimplifier to allocate storage, and all that good stuff. */
4587 384 : tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl);
4588 384 : gfc_add_expr_to_block (&init, tmp);
4589 :
4590 384 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE, back);
4591 384 : }
4592 :
4593 : /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */
4594 :
4595 : static void
4596 64 : gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block)
4597 : {
4598 64 : stmtblock_t init;
4599 :
4600 64 : gcc_assert (sym->backend_decl);
4601 64 : gfc_start_block (&init);
4602 :
4603 : /* Set the initial value to length. See the comments in
4604 : function gfc_add_assign_aux_vars in this file. */
4605 64 : gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl),
4606 : build_int_cst (gfc_charlen_type_node, -2));
4607 :
4608 64 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4609 64 : }
4610 :
4611 : static void
4612 169770 : gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body)
4613 : {
4614 169770 : tree t = *tp, var, val;
4615 :
4616 169770 : if (t == NULL || t == error_mark_node)
4617 : return;
4618 159597 : if (TREE_CONSTANT (t) || DECL_P (t))
4619 : return;
4620 :
4621 66144 : if (TREE_CODE (t) == SAVE_EXPR)
4622 : {
4623 38128 : if (SAVE_EXPR_RESOLVED_P (t))
4624 : {
4625 0 : *tp = TREE_OPERAND (t, 0);
4626 0 : return;
4627 : }
4628 38128 : val = TREE_OPERAND (t, 0);
4629 : }
4630 : else
4631 : val = t;
4632 :
4633 66144 : var = gfc_create_var_np (TREE_TYPE (t), NULL);
4634 66144 : gfc_add_decl_to_function (var);
4635 66144 : gfc_add_modify (body, var, unshare_expr (val));
4636 66144 : if (TREE_CODE (t) == SAVE_EXPR)
4637 38128 : TREE_OPERAND (t, 0) = var;
4638 66144 : *tp = var;
4639 : }
4640 :
4641 : static void
4642 94808 : gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body)
4643 : {
4644 94808 : tree t;
4645 :
4646 94808 : if (type == NULL || type == error_mark_node)
4647 : return;
4648 :
4649 94808 : type = TYPE_MAIN_VARIANT (type);
4650 :
4651 94808 : if (TREE_CODE (type) == INTEGER_TYPE)
4652 : {
4653 52578 : gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body);
4654 52578 : gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body);
4655 :
4656 67908 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4657 : {
4658 15330 : TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type);
4659 15330 : TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type);
4660 : }
4661 : }
4662 42230 : else if (TREE_CODE (type) == ARRAY_TYPE)
4663 : {
4664 32307 : gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body);
4665 32307 : gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body);
4666 32307 : gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body);
4667 32307 : gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body);
4668 :
4669 32307 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4670 : {
4671 0 : TYPE_SIZE (t) = TYPE_SIZE (type);
4672 0 : TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type);
4673 : }
4674 : }
4675 : }
4676 :
4677 : /* Make sure all type sizes and array domains are either constant,
4678 : or variable or parameter decls. This is a simplified variant
4679 : of gimplify_type_sizes, but we can't use it here, as none of the
4680 : variables in the expressions have been gimplified yet.
4681 : As type sizes and domains for various variable length arrays
4682 : contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars
4683 : time, without this routine gimplify_type_sizes in the middle-end
4684 : could result in the type sizes being gimplified earlier than where
4685 : those variables are initialized. */
4686 :
4687 : void
4688 28678 : gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body)
4689 : {
4690 28678 : tree type = TREE_TYPE (sym->backend_decl);
4691 :
4692 28678 : if (TREE_CODE (type) == FUNCTION_TYPE
4693 1111 : && (sym->attr.function || sym->attr.result || sym->attr.entry))
4694 : {
4695 1111 : if (! current_fake_result_decl)
4696 : return;
4697 :
4698 1111 : type = TREE_TYPE (TREE_VALUE (current_fake_result_decl));
4699 : }
4700 :
4701 56445 : while (POINTER_TYPE_P (type))
4702 27767 : type = TREE_TYPE (type);
4703 :
4704 28678 : if (GFC_DESCRIPTOR_TYPE_P (type))
4705 : {
4706 1516 : tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type);
4707 :
4708 3032 : while (POINTER_TYPE_P (etype))
4709 1516 : etype = TREE_TYPE (etype);
4710 :
4711 1516 : gfc_trans_vla_type_sizes_1 (etype, body);
4712 : }
4713 :
4714 28678 : gfc_trans_vla_type_sizes_1 (type, body);
4715 : }
4716 :
4717 :
4718 : /* Initialize a derived type by building an lvalue from the symbol
4719 : and using trans_assignment to do the work. Set dealloc to false
4720 : if no deallocation prior the assignment is needed. */
4721 : void
4722 1741 : gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc,
4723 : bool pdt_ok)
4724 : {
4725 1741 : gfc_expr *e;
4726 1741 : tree tmp;
4727 1741 : tree present;
4728 :
4729 1741 : gcc_assert (block);
4730 :
4731 : /* Initialization of PDTs is done elsewhere. */
4732 1741 : if (IS_PDT (sym) && !pdt_ok)
4733 : return;
4734 :
4735 1214 : gcc_assert (!sym->attr.allocatable);
4736 1214 : gfc_set_sym_referenced (sym);
4737 1214 : e = gfc_lval_expr_from_sym (sym);
4738 1214 : tmp = gfc_trans_assignment (e, sym->value, false, dealloc);
4739 1214 : if (sym->attr.dummy && (sym->attr.optional
4740 241 : || sym->ns->proc_name->attr.entry_master))
4741 : {
4742 39 : present = gfc_conv_expr_present (sym);
4743 39 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present,
4744 : tmp, build_empty_stmt (input_location));
4745 : }
4746 1214 : gfc_add_expr_to_block (block, tmp);
4747 1214 : gfc_free_expr (e);
4748 : }
4749 :
4750 :
4751 : /* Initialize a PDT, either when the symbol has a value or when all the
4752 : components have an initializer. */
4753 : static tree
4754 780 : gfc_init_default_pdt (gfc_symbol *sym, bool dealloc)
4755 : {
4756 780 : stmtblock_t block;
4757 780 : tree tmp;
4758 780 : gfc_component *c;
4759 :
4760 780 : if (sym->value && sym->value->symtree
4761 18 : && sym->value->symtree->n.sym
4762 18 : && !sym->value->symtree->n.sym->attr.artificial)
4763 : {
4764 18 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym),
4765 : sym->value, false, false, true);
4766 18 : return tmp;
4767 : }
4768 :
4769 762 : if (!dealloc || !sym->value)
4770 : return NULL_TREE;
4771 :
4772 : /* Allowed in the case where all the components have initializers and
4773 : there are no LEN components. */
4774 498 : c = sym->ts.u.derived->components;
4775 797 : for (; c; c = c->next)
4776 753 : if (c->attr.pdt_len || !c->initializer)
4777 : return NULL_TREE;
4778 :
4779 44 : gfc_init_block (&block);
4780 44 : gfc_init_default_dt (sym, &block, dealloc, true);
4781 44 : return gfc_finish_block (&block);
4782 : }
4783 :
4784 :
4785 : /* Initialize INTENT(OUT) derived type dummies. As well as giving
4786 : them their default initializer, if they have allocatable
4787 : components, they have their allocatable components deallocated. */
4788 :
4789 : static void
4790 103428 : init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4791 : {
4792 103428 : stmtblock_t init;
4793 103428 : gfc_formal_arglist *f;
4794 103428 : tree tmp;
4795 103428 : tree present;
4796 103428 : gfc_symbol *s;
4797 :
4798 103428 : gfc_init_block (&init);
4799 209174 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
4800 105746 : if (f->sym && f->sym->attr.intent == INTENT_OUT
4801 4235 : && !f->sym->attr.pointer
4802 4181 : && f->sym->ts.type == BT_DERIVED)
4803 : {
4804 547 : s = f->sym;
4805 547 : tmp = NULL_TREE;
4806 :
4807 : /* Note: Allocatables are excluded as they are already handled
4808 : by the caller. */
4809 547 : if (!f->sym->attr.allocatable
4810 547 : && gfc_is_finalizable (s->ts.u.derived, NULL))
4811 : {
4812 38 : stmtblock_t block;
4813 38 : gfc_expr *e;
4814 :
4815 38 : gfc_init_block (&block);
4816 38 : s->attr.referenced = 1;
4817 38 : e = gfc_lval_expr_from_sym (s);
4818 38 : gfc_add_finalizer_call (&block, e);
4819 38 : gfc_free_expr (e);
4820 38 : tmp = gfc_finish_block (&block);
4821 : }
4822 :
4823 : /* Note: Allocatables are excluded as they are already handled
4824 : by the caller. */
4825 547 : if (tmp == NULL_TREE && !s->attr.allocatable
4826 388 : && s->ts.u.derived->attr.alloc_comp)
4827 126 : tmp = gfc_deallocate_alloc_comp (s->ts.u.derived,
4828 : s->backend_decl,
4829 126 : s->as ? s->as->rank : 0);
4830 :
4831 547 : if (tmp != NULL_TREE && (s->attr.optional
4832 145 : || s->ns->proc_name->attr.entry_master))
4833 : {
4834 19 : present = gfc_conv_expr_present (s);
4835 19 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4836 : present, tmp, build_empty_stmt (input_location));
4837 : }
4838 :
4839 547 : gfc_add_expr_to_block (&init, tmp);
4840 547 : if (s->value && !s->attr.allocatable)
4841 303 : gfc_init_default_dt (s, &init, false);
4842 : }
4843 105199 : else if (f->sym && f->sym->attr.intent == INTENT_OUT
4844 3688 : && f->sym->ts.type == BT_CLASS
4845 672 : && !CLASS_DATA (f->sym)->attr.class_pointer
4846 653 : && !CLASS_DATA (f->sym)->attr.allocatable)
4847 : {
4848 430 : stmtblock_t block;
4849 430 : gfc_expr *e;
4850 :
4851 430 : gfc_init_block (&block);
4852 430 : f->sym->attr.referenced = 1;
4853 430 : e = gfc_lval_expr_from_sym (f->sym);
4854 430 : gfc_add_finalizer_call (&block, e);
4855 430 : gfc_free_expr (e);
4856 430 : tmp = gfc_finish_block (&block);
4857 :
4858 430 : if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master)
4859 : {
4860 6 : present = gfc_conv_expr_present (f->sym);
4861 6 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4862 : present, tmp,
4863 : build_empty_stmt (input_location));
4864 : }
4865 430 : gfc_add_expr_to_block (&init, tmp);
4866 : }
4867 103428 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4868 103428 : }
4869 :
4870 :
4871 : /* Helper function to manage deferred string lengths. */
4872 :
4873 : static tree
4874 174 : gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init,
4875 : location_t loc)
4876 : {
4877 174 : tree tmp;
4878 :
4879 : /* Character length passed by reference. */
4880 174 : tmp = sym->ts.u.cl->passed_length;
4881 174 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
4882 174 : tmp = fold_convert (gfc_charlen_type_node, tmp);
4883 :
4884 174 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
4885 : /* Zero the string length when entering the scope. */
4886 174 : gfc_add_modify (init, sym->ts.u.cl->backend_decl,
4887 : build_int_cst (gfc_charlen_type_node, 0));
4888 : else
4889 : {
4890 0 : tree tmp2;
4891 :
4892 0 : tmp2 = fold_build2_loc (input_location, MODIFY_EXPR,
4893 : gfc_charlen_type_node,
4894 0 : sym->ts.u.cl->backend_decl, tmp);
4895 0 : if (sym->attr.optional)
4896 : {
4897 0 : tree present = gfc_conv_expr_present (sym);
4898 0 : tmp2 = build3_loc (input_location, COND_EXPR,
4899 : void_type_node, present, tmp2,
4900 : build_empty_stmt (input_location));
4901 : }
4902 0 : gfc_add_expr_to_block (init, tmp2);
4903 : }
4904 :
4905 174 : input_location = loc;
4906 :
4907 : /* Pass the final character length back. */
4908 174 : if (sym->attr.intent != INTENT_IN)
4909 : {
4910 348 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
4911 : gfc_charlen_type_node, tmp,
4912 174 : sym->ts.u.cl->backend_decl);
4913 174 : if (sym->attr.optional)
4914 : {
4915 0 : tree present = gfc_conv_expr_present (sym);
4916 0 : tmp = build3_loc (input_location, COND_EXPR,
4917 : void_type_node, present, tmp,
4918 : build_empty_stmt (input_location));
4919 : }
4920 : }
4921 : else
4922 : tmp = NULL_TREE;
4923 :
4924 174 : return tmp;
4925 : }
4926 :
4927 :
4928 : /* Get the result expression for a procedure. */
4929 :
4930 : static tree
4931 26207 : get_proc_result (gfc_symbol* sym)
4932 : {
4933 26207 : if (sym->attr.subroutine || sym == sym->result)
4934 : {
4935 12986 : if (current_fake_result_decl != NULL)
4936 12796 : return TREE_VALUE (current_fake_result_decl);
4937 :
4938 : return NULL_TREE;
4939 : }
4940 :
4941 13221 : return sym->result->backend_decl;
4942 : }
4943 :
4944 :
4945 : /* Generate function entry and exit code, and add it to the function body.
4946 : This includes:
4947 : Allocation and initialization of array variables.
4948 : Allocation of character string variables.
4949 : Initialization and possibly repacking of dummy arrays.
4950 : Initialization of ASSIGN statement auxiliary variable.
4951 : Initialization of ASSOCIATE names.
4952 : Automatic deallocation. */
4953 :
4954 : void
4955 103428 : gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4956 : {
4957 103428 : location_t loc;
4958 103428 : gfc_symbol *sym;
4959 103428 : gfc_formal_arglist *f;
4960 103428 : stmtblock_t tmpblock;
4961 103428 : bool seen_trans_deferred_array = false;
4962 103428 : bool is_pdt_type = false;
4963 103428 : tree tmp = NULL;
4964 103428 : gfc_expr *e;
4965 103428 : gfc_se se;
4966 103428 : stmtblock_t init;
4967 :
4968 : /* Deal with implicit return variables. Explicit return variables will
4969 : already have been added. */
4970 103428 : if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym)
4971 : {
4972 1706 : if (!current_fake_result_decl)
4973 : {
4974 81 : gfc_entry_list *el = NULL;
4975 81 : if (proc_sym->attr.entry_master)
4976 : {
4977 46 : for (el = proc_sym->ns->entries; el; el = el->next)
4978 46 : if (el->sym != el->sym->result)
4979 : break;
4980 : }
4981 : /* TODO: move to the appropriate place in resolve.cc. */
4982 81 : if (warn_return_type > 0 && el == NULL)
4983 4 : gfc_warning (OPT_Wreturn_type,
4984 : "Return value of function %qs at %L not set",
4985 : proc_sym->name, &proc_sym->declared_at);
4986 : }
4987 1625 : else if (proc_sym->as)
4988 : {
4989 807 : tree result = TREE_VALUE (current_fake_result_decl);
4990 807 : loc = input_location;
4991 807 : input_location = gfc_get_location (&proc_sym->declared_at);
4992 807 : gfc_trans_dummy_array_bias (proc_sym, result, block);
4993 :
4994 : /* An automatic character length, pointer array result. */
4995 807 : if (proc_sym->ts.type == BT_CHARACTER
4996 69 : && VAR_P (proc_sym->ts.u.cl->backend_decl))
4997 : {
4998 51 : tmp = NULL;
4999 51 : if (proc_sym->ts.deferred)
5000 : {
5001 12 : gfc_start_block (&init);
5002 12 : tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, loc);
5003 12 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5004 : }
5005 : else
5006 39 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
5007 : }
5008 : }
5009 818 : else if (proc_sym->ts.type == BT_CHARACTER)
5010 : {
5011 782 : if (proc_sym->ts.deferred)
5012 : {
5013 97 : tmp = NULL;
5014 97 : loc = input_location;
5015 97 : input_location = gfc_get_location (&proc_sym->declared_at);
5016 97 : gfc_start_block (&init);
5017 : /* Zero the string length on entry. */
5018 97 : gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl,
5019 : build_int_cst (gfc_charlen_type_node, 0));
5020 : /* Null the pointer. */
5021 97 : e = gfc_lval_expr_from_sym (proc_sym);
5022 97 : gfc_init_se (&se, NULL);
5023 97 : se.want_pointer = 1;
5024 97 : gfc_conv_expr (&se, e);
5025 97 : gfc_free_expr (e);
5026 97 : tmp = se.expr;
5027 97 : gfc_add_modify (&init, tmp,
5028 97 : fold_convert (TREE_TYPE (se.expr),
5029 : null_pointer_node));
5030 97 : input_location = loc;
5031 :
5032 : /* Pass back the string length on exit. */
5033 97 : tmp = proc_sym->ts.u.cl->backend_decl;
5034 97 : if (TREE_CODE (tmp) != INDIRECT_REF
5035 97 : && proc_sym->ts.u.cl->passed_length)
5036 : {
5037 97 : tmp = proc_sym->ts.u.cl->passed_length;
5038 97 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
5039 194 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
5040 97 : TREE_TYPE (tmp), tmp,
5041 97 : fold_convert
5042 : (TREE_TYPE (tmp),
5043 : proc_sym->ts.u.cl->backend_decl));
5044 : }
5045 : else
5046 : tmp = NULL_TREE;
5047 :
5048 97 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5049 : }
5050 685 : else if (VAR_P (proc_sym->ts.u.cl->backend_decl))
5051 399 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
5052 : }
5053 : else
5054 36 : gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX);
5055 : }
5056 101722 : else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym))
5057 : {
5058 : /* Nullify explicit return class arrays on entry. */
5059 34 : tmp = get_proc_result (proc_sym);
5060 34 : if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp)))
5061 : {
5062 34 : gfc_start_block (&init);
5063 34 : tmp = gfc_class_data_get (tmp);
5064 34 : gfc_init_result_descriptor (&init, tmp);
5065 34 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
5066 : }
5067 : }
5068 :
5069 103428 : sym = (proc_sym->attr.function
5070 103428 : && proc_sym != proc_sym->result) ? proc_sym->result : NULL;
5071 :
5072 7765 : if (sym && !sym->attr.allocatable && !sym->attr.pointer
5073 7050 : && sym->attr.referenced
5074 14717 : && IS_PDT (sym) && !gfc_has_default_initializer (sym->ts.u.derived))
5075 : {
5076 6 : gfc_init_block (&tmpblock);
5077 6 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
5078 : sym->backend_decl,
5079 6 : sym->as ? sym->as->rank : 0,
5080 6 : sym->param_list);
5081 6 : gfc_add_expr_to_block (&tmpblock, tmp);
5082 6 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5083 : }
5084 :
5085 : /* Initialize the INTENT(OUT) derived type dummy arguments. This
5086 : should be done here so that the offsets and lbounds of arrays
5087 : are available. */
5088 103428 : loc = input_location;
5089 103428 : input_location = gfc_get_location (&proc_sym->declared_at);
5090 103428 : init_intent_out_dt (proc_sym, block);
5091 103428 : input_location = loc;
5092 :
5093 : /* For some reasons, internal procedures point to the parent's
5094 : namespace. Top-level procedure and variables inside BLOCK are fine. */
5095 103428 : gfc_namespace *omp_ns = proc_sym->ns;
5096 103428 : if (proc_sym->ns->proc_name != proc_sym)
5097 207673 : for (omp_ns = proc_sym->ns->contained; omp_ns;
5098 169677 : omp_ns = omp_ns->sibling)
5099 207550 : if (omp_ns->proc_name == proc_sym)
5100 : break;
5101 :
5102 : /* Add 'omp allocate' attribute for gfc_trans_auto_array_allocation and
5103 : unset attr.omp_allocate for 'omp allocate allocator(omp_default_mem_alloc),
5104 : which has the normal codepath except for an invalid-use check in the ME.
5105 : The main processing happens later in this function. */
5106 103428 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5107 103483 : n; n = n->next)
5108 55 : if (!TREE_STATIC (n->sym->backend_decl))
5109 : {
5110 : /* Add empty entries - described and to be filled below. */
5111 36 : tree tmp = build_tree_list (NULL_TREE, NULL_TREE);
5112 36 : TREE_CHAIN (tmp) = build_tree_list (NULL_TREE, NULL_TREE);
5113 36 : DECL_ATTRIBUTES (n->sym->backend_decl)
5114 36 : = tree_cons (get_identifier ("omp allocate"), tmp,
5115 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5116 36 : if (n->u.align == NULL
5117 29 : && n->u2.allocator != NULL
5118 7 : && n->u2.allocator->expr_type == EXPR_CONSTANT
5119 2 : && mpz_cmp_si (n->u2.allocator->value.integer, 1) == 0)
5120 1 : n->sym->attr.omp_allocate = 0;
5121 : }
5122 :
5123 181100 : for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink)
5124 : {
5125 77672 : bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED)
5126 77672 : && (sym->ts.u.derived->attr.alloc_comp
5127 6547 : || gfc_is_finalizable (sym->ts.u.derived,
5128 77672 : NULL));
5129 77672 : if (sym->assoc || sym->attr.vtab)
5130 5402 : continue;
5131 :
5132 : /* Set the vptr of unlimited polymorphic pointer variables so that
5133 : they do not cause segfaults in select type, when the selector
5134 : is an intrinsic type. */
5135 72270 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
5136 1132 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc
5137 1132 : && !sym->attr.dummy && CLASS_DATA (sym)->attr.class_pointer)
5138 : {
5139 332 : gfc_symbol *vtab;
5140 332 : gfc_init_block (&tmpblock);
5141 332 : vtab = gfc_find_vtab (&sym->ts);
5142 332 : if (!vtab->backend_decl)
5143 : {
5144 54 : if (!vtab->attr.referenced)
5145 6 : gfc_set_sym_referenced (vtab);
5146 54 : gfc_get_symbol_decl (vtab);
5147 : }
5148 332 : tmp = gfc_class_vptr_get (sym->backend_decl);
5149 332 : gfc_add_modify (&tmpblock, tmp,
5150 332 : gfc_build_addr_expr (TREE_TYPE (tmp),
5151 : vtab->backend_decl));
5152 332 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5153 : }
5154 :
5155 72270 : if (sym->ts.type == BT_DERIVED
5156 11742 : && sym->ts.u.derived
5157 11742 : && (sym->ts.u.derived->attr.pdt_type
5158 10738 : || sym->ts.u.derived->attr.pdt_comp))
5159 : {
5160 1013 : is_pdt_type = true;
5161 1013 : gfc_init_block (&tmpblock);
5162 :
5163 1013 : if (!sym->attr.dummy && !sym->attr.pointer)
5164 : {
5165 780 : tmp = gfc_init_default_pdt (sym, true);
5166 780 : if (!sym->attr.allocatable && tmp == NULL_TREE
5167 574 : && sym->param_list)
5168 : {
5169 542 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
5170 : sym->backend_decl,
5171 542 : sym->as ? sym->as->rank : 0,
5172 : sym->param_list);
5173 542 : gfc_add_expr_to_block (&tmpblock, tmp);
5174 : }
5175 176 : else if (tmp != NULL_TREE)
5176 62 : gfc_add_expr_to_block (&tmpblock, tmp);
5177 :
5178 780 : if (!sym->attr.result && !sym->ts.u.derived->attr.alloc_comp)
5179 631 : tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived,
5180 : sym->backend_decl,
5181 631 : sym->as ? sym->as->rank : 0);
5182 : else
5183 : tmp = NULL_TREE;
5184 :
5185 447 : if (tmp && sym->attr.allocatable && !sym->attr.result
5186 710 : && (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (sym->backend_decl))
5187 12 : || sym->attr.codimension))
5188 : {
5189 : /* Only deallocate the PDT comonents if the variable has not
5190 : been deallocated. Arrays are guarded elsewhere. */
5191 73 : tree null_cond, zero;
5192 73 : null_cond = sym->backend_decl;
5193 73 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (sym->backend_decl)))
5194 6 : null_cond = gfc_conv_descriptor_data_get (null_cond);
5195 73 : zero = build_int_cst (TREE_TYPE (null_cond), 0);
5196 73 : null_cond = fold_build2_loc (input_location, NE_EXPR,
5197 : logical_type_node,
5198 : null_cond, zero);
5199 73 : tmp = build3_loc (input_location, COND_EXPR, void_type_node,
5200 : null_cond, tmp,
5201 : build_empty_stmt (input_location));
5202 : }
5203 :
5204 780 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5205 780 : }
5206 233 : else if (sym->attr.dummy)
5207 : {
5208 105 : bool intent_out = false;
5209 105 : tree present = NULL_TREE;
5210 : /* F2023 19.6.5(24) */
5211 105 : if (sym->attr.intent == INTENT_OUT)
5212 31 : intent_out = true;
5213 105 : tmp = gfc_check_pdt_dummy (sym->ts.u.derived,
5214 : sym->backend_decl,
5215 105 : sym->as ? sym->as->rank : 0,
5216 105 : sym->param_list, intent_out);
5217 105 : if (sym->attr.optional)
5218 : {
5219 12 : present = gfc_conv_expr_present (sym, false);
5220 12 : tmp = build3_loc (input_location, COND_EXPR, void_type_node,
5221 : present, tmp,
5222 : build_empty_stmt (input_location));
5223 : }
5224 :
5225 105 : gfc_add_expr_to_block (&tmpblock, tmp);
5226 :
5227 105 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5228 : }
5229 : }
5230 71257 : else if (IS_CLASS_PDT (sym))
5231 : {
5232 18 : gfc_component *data = CLASS_DATA (sym);
5233 18 : is_pdt_type = true;
5234 18 : gfc_init_block (&tmpblock);
5235 18 : if (!(sym->attr.dummy
5236 18 : || CLASS_DATA (sym)->attr.pointer
5237 18 : || CLASS_DATA (sym)->attr.allocatable))
5238 : {
5239 0 : tmp = gfc_class_data_get (sym->backend_decl);
5240 0 : tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp,
5241 0 : data->as ? data->as->rank : 0,
5242 0 : sym->param_list);
5243 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5244 0 : tmp = gfc_class_data_get (sym->backend_decl);
5245 0 : if (!sym->attr.result)
5246 0 : tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp,
5247 0 : data->as ? data->as->rank : 0);
5248 : else
5249 : tmp = NULL_TREE;
5250 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5251 : }
5252 18 : else if (sym->attr.dummy)
5253 : {
5254 0 : tmp = gfc_class_data_get (sym->backend_decl);
5255 0 : tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp,
5256 0 : data->as ? data->as->rank : 0,
5257 0 : sym->param_list);
5258 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5259 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5260 : }
5261 : }
5262 :
5263 72270 : if (sym->ts.type == BT_CLASS
5264 4122 : && (sym->attr.save || flag_max_stack_var_size == 0)
5265 58 : && CLASS_DATA (sym)->attr.allocatable)
5266 : {
5267 40 : tree vptr;
5268 :
5269 40 : if (UNLIMITED_POLY (sym))
5270 0 : vptr = null_pointer_node;
5271 : else
5272 : {
5273 40 : gfc_symbol *vsym;
5274 40 : vsym = gfc_find_derived_vtab (sym->ts.u.derived);
5275 40 : vptr = gfc_get_symbol_decl (vsym);
5276 40 : vptr = gfc_build_addr_expr (NULL, vptr);
5277 : }
5278 :
5279 40 : if (CLASS_DATA (sym)->attr.dimension
5280 8 : || (CLASS_DATA (sym)->attr.codimension
5281 1 : && flag_coarray != GFC_FCOARRAY_LIB))
5282 : {
5283 33 : tmp = gfc_class_data_get (sym->backend_decl);
5284 33 : tmp = gfc_build_null_descriptor (TREE_TYPE (tmp));
5285 : }
5286 : else
5287 7 : tmp = null_pointer_node;
5288 :
5289 40 : DECL_INITIAL (sym->backend_decl)
5290 40 : = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp);
5291 40 : TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1;
5292 40 : }
5293 72230 : else if ((sym->attr.dimension || sym->attr.codimension
5294 13451 : || (IS_CLASS_COARRAY_OR_ARRAY (sym)
5295 2169 : && !CLASS_DATA (sym)->attr.allocatable)))
5296 : {
5297 59743 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
5298 59743 : symbol_attribute *array_attr;
5299 59743 : gfc_array_spec *as;
5300 59743 : array_type type_of_array;
5301 :
5302 59743 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
5303 59743 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
5304 : /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */
5305 59743 : type_of_array = as->type;
5306 59743 : if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed)
5307 : type_of_array = AS_EXPLICIT;
5308 59672 : switch (type_of_array)
5309 : {
5310 39310 : case AS_EXPLICIT:
5311 39310 : if (sym->attr.dummy || sym->attr.result)
5312 6437 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5313 : /* Allocatable and pointer arrays need to processed
5314 : explicitly. */
5315 32873 : else if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
5316 32873 : || (sym->ts.type == BT_CLASS
5317 0 : && CLASS_DATA (sym)->attr.class_pointer)
5318 32873 : || array_attr->allocatable)
5319 : {
5320 0 : if (TREE_STATIC (sym->backend_decl))
5321 : {
5322 0 : loc = input_location;
5323 0 : input_location = gfc_get_location (&sym->declared_at);
5324 0 : gfc_trans_static_array_pointer (sym);
5325 0 : input_location = loc;
5326 : }
5327 : else
5328 : {
5329 0 : seen_trans_deferred_array = true;
5330 0 : gfc_trans_deferred_array (sym, block);
5331 : }
5332 : }
5333 32873 : else if (sym->attr.codimension
5334 496 : && TREE_STATIC (sym->backend_decl))
5335 : {
5336 427 : gfc_init_block (&tmpblock);
5337 427 : gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl),
5338 : &tmpblock, sym);
5339 427 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5340 : NULL_TREE);
5341 427 : continue;
5342 : }
5343 32446 : else if (sym->attr.codimension && !sym->attr.dimension)
5344 : {
5345 : /* Scalar coarrays do not need array allocation. */
5346 47 : continue;
5347 : }
5348 : else
5349 : {
5350 32399 : loc = input_location;
5351 32399 : input_location = gfc_get_location (&sym->declared_at);
5352 :
5353 32399 : if (alloc_comp_or_fini)
5354 : {
5355 551 : seen_trans_deferred_array = true;
5356 551 : gfc_trans_deferred_array (sym, block);
5357 : }
5358 31848 : else if (sym->ts.type == BT_DERIVED
5359 1918 : && sym->value
5360 588 : && !sym->attr.data
5361 562 : && sym->attr.save == SAVE_NONE)
5362 : {
5363 325 : gfc_start_block (&tmpblock);
5364 325 : gfc_init_default_dt (sym, &tmpblock, false);
5365 325 : gfc_add_init_cleanup (block,
5366 : gfc_finish_block (&tmpblock),
5367 : NULL_TREE);
5368 : }
5369 :
5370 32399 : gfc_trans_auto_array_allocation (sym->backend_decl,
5371 : sym, block);
5372 32399 : input_location = loc;
5373 : }
5374 : break;
5375 :
5376 1547 : case AS_ASSUMED_SIZE:
5377 : /* Must be a dummy parameter. */
5378 1547 : gcc_assert (sym->attr.dummy || as->cp_was_assumed);
5379 :
5380 : /* We should always pass assumed size arrays the g77 way. */
5381 1547 : if (sym->attr.dummy)
5382 1547 : gfc_trans_g77_array (sym, block);
5383 : break;
5384 :
5385 6290 : case AS_ASSUMED_SHAPE:
5386 : /* Must be a dummy parameter. */
5387 6290 : gcc_assert (sym->attr.dummy);
5388 :
5389 6290 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5390 6290 : break;
5391 :
5392 12596 : case AS_ASSUMED_RANK:
5393 12596 : case AS_DEFERRED:
5394 12596 : seen_trans_deferred_array = true;
5395 12596 : gfc_trans_deferred_array (sym, block);
5396 12596 : if (sym->ts.type == BT_CHARACTER && sym->ts.deferred
5397 754 : && sym->attr.result)
5398 : {
5399 38 : gfc_start_block (&init);
5400 38 : loc = input_location;
5401 38 : input_location = gfc_get_location (&sym->declared_at);
5402 38 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5403 38 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5404 : }
5405 : break;
5406 :
5407 0 : default:
5408 0 : gcc_unreachable ();
5409 : }
5410 59269 : if (alloc_comp_or_fini && !seen_trans_deferred_array)
5411 336 : gfc_trans_deferred_array (sym, block);
5412 : }
5413 12487 : else if ((!sym->attr.dummy || sym->ts.deferred)
5414 12254 : && (sym->ts.type == BT_CLASS
5415 3118 : && CLASS_DATA (sym)->attr.class_pointer))
5416 571 : gfc_trans_class_array (sym, block);
5417 11916 : else if ((!sym->attr.dummy || sym->ts.deferred)
5418 11683 : && (sym->attr.allocatable
5419 9249 : || (sym->attr.pointer && sym->attr.result)
5420 9198 : || (sym->ts.type == BT_CLASS
5421 2547 : && CLASS_DATA (sym)->attr.allocatable)))
5422 : {
5423 : /* Ensure that the initialization block may be generated also for
5424 : dummy and result variables when -fno-automatic is specified, which
5425 : sets flag_max_stack_var_size=0. */
5426 5032 : if (!sym->attr.save
5427 4953 : && (flag_max_stack_var_size != 0
5428 3 : || sym->attr.dummy
5429 3 : || sym->attr.result))
5430 : {
5431 4953 : tree descriptor = NULL_TREE;
5432 :
5433 4953 : loc = input_location;
5434 4953 : input_location = gfc_get_location (&sym->declared_at);
5435 4953 : gfc_start_block (&init);
5436 :
5437 4953 : if (sym->ts.type == BT_CHARACTER
5438 1031 : && sym->attr.allocatable
5439 1007 : && !sym->attr.dimension
5440 1007 : && sym->ts.u.cl && sym->ts.u.cl->length
5441 197 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
5442 27 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
5443 :
5444 4953 : if (!sym->attr.pointer)
5445 : {
5446 : /* Nullify and automatic deallocation of allocatable
5447 : scalars. */
5448 4902 : e = gfc_lval_expr_from_sym (sym);
5449 4902 : if (sym->ts.type == BT_CLASS)
5450 2547 : gfc_add_data_component (e);
5451 :
5452 4902 : gfc_init_se (&se, NULL);
5453 4902 : if (sym->ts.type != BT_CLASS
5454 2547 : || sym->ts.u.derived->attr.dimension
5455 2547 : || sym->ts.u.derived->attr.codimension)
5456 : {
5457 2355 : se.want_pointer = 1;
5458 2355 : gfc_conv_expr (&se, e);
5459 : }
5460 2547 : else if (sym->ts.type == BT_CLASS
5461 2547 : && !CLASS_DATA (sym)->attr.dimension
5462 1403 : && !CLASS_DATA (sym)->attr.codimension)
5463 : {
5464 1342 : se.want_pointer = 1;
5465 1342 : gfc_conv_expr (&se, e);
5466 : }
5467 : else
5468 : {
5469 1205 : se.descriptor_only = 1;
5470 1205 : gfc_conv_expr (&se, e);
5471 1205 : descriptor = se.expr;
5472 1205 : se.expr = gfc_conv_descriptor_data_get (se.expr);
5473 : }
5474 4902 : gfc_free_expr (e);
5475 :
5476 4902 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
5477 : {
5478 : /* Nullify when entering the scope. */
5479 4902 : if (sym->ts.type == BT_CLASS
5480 2547 : && (CLASS_DATA (sym)->attr.dimension
5481 1403 : || CLASS_DATA (sym)->attr.codimension))
5482 : {
5483 1205 : stmtblock_t nullify;
5484 1205 : gfc_init_block (&nullify);
5485 1205 : gfc_conv_descriptor_data_set (&nullify, descriptor,
5486 : null_pointer_node);
5487 1205 : tmp = gfc_finish_block (&nullify);
5488 1205 : }
5489 : else
5490 : {
5491 3697 : tree typed_null = fold_convert (TREE_TYPE (se.expr),
5492 : null_pointer_node);
5493 3697 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
5494 3697 : TREE_TYPE (se.expr), se.expr,
5495 : typed_null);
5496 : }
5497 4902 : if (sym->attr.optional)
5498 : {
5499 0 : tree present = gfc_conv_expr_present (sym);
5500 0 : tmp = build3_loc (input_location, COND_EXPR,
5501 : void_type_node, present, tmp,
5502 : build_empty_stmt (input_location));
5503 : }
5504 4902 : gfc_add_expr_to_block (&init, tmp);
5505 : }
5506 : }
5507 :
5508 4953 : if ((sym->attr.dummy || sym->attr.result)
5509 523 : && sym->ts.type == BT_CHARACTER
5510 124 : && sym->ts.deferred
5511 124 : && sym->ts.u.cl->passed_length)
5512 124 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5513 : else
5514 : {
5515 4829 : input_location = loc;
5516 4829 : tmp = NULL_TREE;
5517 : }
5518 :
5519 : /* Initialize descriptor's TKR information. */
5520 4953 : if (sym->ts.type == BT_CLASS)
5521 2547 : gfc_trans_class_array (sym, block);
5522 :
5523 : /* Deallocate when leaving the scope. Nullifying is not
5524 : needed. */
5525 4953 : if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer
5526 4430 : && !sym->ns->proc_name->attr.is_main_program)
5527 : {
5528 1514 : if (sym->ts.type == BT_CLASS
5529 562 : && CLASS_DATA (sym)->attr.codimension)
5530 6 : tmp = gfc_deallocate_with_status (descriptor, NULL_TREE,
5531 : NULL_TREE, NULL_TREE,
5532 : NULL_TREE, true, NULL,
5533 : GFC_CAF_COARRAY_ANALYZE);
5534 : else
5535 : {
5536 1508 : gfc_expr *expr = gfc_lval_expr_from_sym (sym);
5537 1508 : tmp = gfc_deallocate_scalar_with_status (se.expr,
5538 : NULL_TREE,
5539 : NULL_TREE,
5540 : true, expr,
5541 : sym->ts);
5542 1508 : gfc_free_expr (expr);
5543 : }
5544 : }
5545 :
5546 4953 : if (sym->ts.type == BT_CLASS)
5547 : {
5548 : /* Initialize _vptr to declared type. */
5549 2547 : loc = input_location;
5550 2547 : input_location = gfc_get_location (&sym->declared_at);
5551 :
5552 2547 : e = gfc_lval_expr_from_sym (sym);
5553 2547 : gfc_reset_vptr (&init, e);
5554 2547 : gfc_free_expr (e);
5555 2547 : input_location = loc;
5556 : }
5557 :
5558 4953 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5559 : }
5560 : }
5561 6884 : else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred)
5562 : {
5563 304 : tree tmp = NULL;
5564 304 : stmtblock_t init;
5565 :
5566 : /* If we get to here, all that should be left are pointers. */
5567 304 : gcc_assert (sym->attr.pointer);
5568 :
5569 304 : if (sym->attr.dummy)
5570 : {
5571 0 : gfc_start_block (&init);
5572 0 : loc = input_location;
5573 0 : input_location = gfc_get_location (&sym->declared_at);
5574 0 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5575 0 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5576 : }
5577 304 : }
5578 6580 : else if (sym->ts.deferred)
5579 0 : gfc_fatal_error ("Deferred type parameter not yet supported");
5580 6580 : else if (alloc_comp_or_fini)
5581 5022 : gfc_trans_deferred_array (sym, block);
5582 1558 : else if (sym->ts.type == BT_CHARACTER)
5583 : {
5584 744 : loc = input_location;
5585 744 : input_location = gfc_get_location (&sym->declared_at);
5586 744 : if (sym->attr.dummy || sym->attr.result)
5587 360 : gfc_trans_dummy_character (sym, sym->ts.u.cl, block);
5588 : else
5589 384 : gfc_trans_auto_character_variable (sym, block);
5590 744 : input_location = loc;
5591 : }
5592 814 : else if (sym->attr.assign)
5593 : {
5594 64 : loc = input_location;
5595 64 : input_location = gfc_get_location (&sym->declared_at);
5596 64 : gfc_trans_assign_aux_var (sym, block);
5597 64 : input_location = loc;
5598 : }
5599 750 : else if (sym->ts.type == BT_DERIVED
5600 750 : && sym->value
5601 646 : && !sym->attr.data
5602 646 : && sym->attr.save == SAVE_NONE)
5603 : {
5604 607 : gfc_start_block (&tmpblock);
5605 607 : gfc_init_default_dt (sym, &tmpblock, false);
5606 607 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5607 : NULL_TREE);
5608 : }
5609 143 : else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type)
5610 0 : gcc_unreachable ();
5611 : }
5612 :
5613 : /* Handle 'omp allocate'. This has to be after the block above as
5614 : gfc_add_init_cleanup (..., init, ...) puts 'init' of later calls
5615 : before earlier calls. The code is a bit more complex as gfortran does
5616 : not really work with bind expressions / BIND_EXPR_VARS properly, i.e.
5617 : gimplify_bind_expr needs some help for placing the GOMP_alloc. Thus,
5618 : we pass on the location of the allocate-assignment expression and,
5619 : if the size is not constant, the size variable if Fortran computes this
5620 : differently. We also might add an expression location after which the
5621 : code has to be added, e.g. for character len expressions, which affect
5622 : the UNIT_SIZE. */
5623 103428 : gfc_expr *last_allocator = NULL;
5624 103428 : if (omp_ns && omp_ns->omp_allocate)
5625 : {
5626 29 : if (!block->init || TREE_CODE (block->init) != STATEMENT_LIST)
5627 : {
5628 22 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5629 22 : append_to_statement_list (tmp, &block->init);
5630 : }
5631 29 : if (!block->cleanup || TREE_CODE (block->cleanup) != STATEMENT_LIST)
5632 : {
5633 29 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5634 29 : append_to_statement_list (tmp, &block->cleanup);
5635 : }
5636 : }
5637 103428 : tree init_stmtlist = block->init;
5638 103428 : tree cleanup_stmtlist = block->cleanup;
5639 103428 : se.expr = NULL_TREE;
5640 103428 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5641 103483 : n; n = n->next)
5642 : {
5643 55 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align) : NULL_TREE);
5644 55 : if (last_allocator != n->u2.allocator)
5645 : {
5646 24 : location_t loc = input_location;
5647 24 : gfc_init_se (&se, NULL);
5648 24 : if (n->u2.allocator)
5649 : {
5650 22 : input_location = gfc_get_location (&n->u2.allocator->where);
5651 22 : gfc_conv_expr (&se, n->u2.allocator);
5652 : }
5653 : /* We need to evaluate non-constants - also to find the location
5654 : after which the GOMP_alloc has to be added to - also as BLOCK
5655 : does not yield a new BIND_EXPR_BODY. */
5656 24 : if (n->u2.allocator
5657 : && (!(CONSTANT_CLASS_P (se.expr) && DECL_P (se.expr))
5658 : || se.pre.head || se.post.head))
5659 : {
5660 22 : stmtblock_t tmpblock;
5661 22 : gfc_init_block (&tmpblock);
5662 22 : se.expr = gfc_evaluate_now (se.expr, &tmpblock);
5663 : /* First post then pre because the new code is inserted
5664 : at the top. */
5665 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.post), NULL);
5666 22 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5667 : NULL);
5668 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.pre), NULL);
5669 : }
5670 24 : last_allocator = n->u2.allocator;
5671 24 : input_location = loc;
5672 : }
5673 55 : if (TREE_STATIC (n->sym->backend_decl))
5674 19 : continue;
5675 : /* 'omp allocate( {purpose: allocator, value: align},
5676 : {purpose: init-stmtlist, value: cleanup-stmtlist},
5677 : {purpose: size-var, value: last-size-expr} )
5678 : where init-stmt/cleanup-stmt is the STATEMENT list to find the
5679 : try-final block; last-size-expr is to find the location after
5680 : which to add the code and 'size-var' is for the proper size, cf.
5681 : gfc_trans_auto_array_allocation - either or both of the latter
5682 : can be NULL. */
5683 36 : tree tmp = lookup_attribute ("omp allocate",
5684 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5685 36 : tmp = TREE_VALUE (tmp);
5686 36 : TREE_PURPOSE (tmp) = se.expr;
5687 36 : TREE_VALUE (tmp) = align;
5688 36 : TREE_PURPOSE (TREE_CHAIN (tmp)) = init_stmtlist;
5689 36 : TREE_VALUE (TREE_CHAIN (tmp)) = cleanup_stmtlist;
5690 : }
5691 :
5692 103428 : gfc_init_block (&tmpblock);
5693 :
5694 209174 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
5695 : {
5696 105746 : if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER
5697 7885 : && f->sym->ts.u.cl->backend_decl)
5698 : {
5699 7882 : if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL)
5700 4246 : gfc_trans_vla_type_sizes (f->sym, &tmpblock);
5701 : }
5702 : }
5703 :
5704 106420 : if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER
5705 104940 : && current_fake_result_decl != NULL)
5706 : {
5707 851 : gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL);
5708 851 : if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL)
5709 69 : gfc_trans_vla_type_sizes (proc_sym, &tmpblock);
5710 : }
5711 :
5712 103428 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE);
5713 103428 : }
5714 :
5715 :
5716 : struct module_hasher : ggc_ptr_hash<module_htab_entry>
5717 : {
5718 : typedef const char *compare_type;
5719 :
5720 28065 : static hashval_t hash (module_htab_entry *s)
5721 : {
5722 28065 : return htab_hash_string (s->name);
5723 : }
5724 :
5725 : static bool
5726 33162 : equal (module_htab_entry *a, const char *b)
5727 : {
5728 33162 : return !strcmp (a->name, b);
5729 : }
5730 : };
5731 :
5732 : static GTY (()) hash_table<module_hasher> *module_htab;
5733 :
5734 : /* Hash and equality functions for module_htab's decls. */
5735 :
5736 : hashval_t
5737 171837 : module_decl_hasher::hash (tree t)
5738 : {
5739 171837 : const_tree n = DECL_NAME (t);
5740 171837 : if (n == NULL_TREE)
5741 25410 : n = TYPE_NAME (TREE_TYPE (t));
5742 171837 : return htab_hash_string (IDENTIFIER_POINTER (n));
5743 : }
5744 :
5745 : bool
5746 180446 : module_decl_hasher::equal (tree t1, const char *x2)
5747 : {
5748 180446 : const_tree n1 = DECL_NAME (t1);
5749 180446 : if (n1 == NULL_TREE)
5750 26464 : n1 = TYPE_NAME (TREE_TYPE (t1));
5751 180446 : return strcmp (IDENTIFIER_POINTER (n1), x2) == 0;
5752 : }
5753 :
5754 : struct module_htab_entry *
5755 31383 : gfc_find_module (const char *name)
5756 : {
5757 31383 : if (! module_htab)
5758 8572 : module_htab = hash_table<module_hasher>::create_ggc (10);
5759 :
5760 31383 : module_htab_entry **slot
5761 31383 : = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT);
5762 31383 : if (*slot == NULL)
5763 : {
5764 10930 : module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> ();
5765 :
5766 10930 : entry->name = gfc_get_string ("%s", name);
5767 10930 : entry->decls = hash_table<module_decl_hasher>::create_ggc (10);
5768 10930 : *slot = entry;
5769 : }
5770 31383 : return *slot;
5771 : }
5772 :
5773 : void
5774 54444 : gfc_module_add_decl (struct module_htab_entry *entry, tree decl)
5775 : {
5776 54444 : const char *name;
5777 :
5778 54444 : if (DECL_NAME (decl))
5779 47185 : name = IDENTIFIER_POINTER (DECL_NAME (decl));
5780 : else
5781 : {
5782 7259 : gcc_assert (TREE_CODE (decl) == TYPE_DECL);
5783 7259 : name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl)));
5784 : }
5785 54444 : tree *slot
5786 54444 : = entry->decls->find_slot_with_hash (name, htab_hash_string (name),
5787 : INSERT);
5788 54444 : if (*slot == NULL)
5789 54432 : *slot = decl;
5790 54444 : }
5791 :
5792 :
5793 : /* Generate debugging symbols for namelists. This function must come after
5794 : generate_local_decl to ensure that the variables in the namelist are
5795 : already declared. */
5796 :
5797 : static tree
5798 789 : generate_namelist_decl (gfc_symbol * sym)
5799 : {
5800 789 : gfc_namelist *nml;
5801 789 : tree decl;
5802 789 : vec<constructor_elt, va_gc> *nml_decls = NULL;
5803 :
5804 789 : gcc_assert (sym->attr.flavor == FL_NAMELIST);
5805 2843 : for (nml = sym->namelist; nml; nml = nml->next)
5806 : {
5807 2054 : if (nml->sym->backend_decl == NULL_TREE)
5808 : {
5809 23 : nml->sym->attr.referenced = 1;
5810 23 : nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym);
5811 : }
5812 2054 : DECL_IGNORED_P (nml->sym->backend_decl) = 0;
5813 2054 : CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl);
5814 : }
5815 :
5816 789 : decl = make_node (NAMELIST_DECL);
5817 789 : TREE_TYPE (decl) = void_type_node;
5818 789 : NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls);
5819 789 : DECL_NAME (decl) = get_identifier (sym->name);
5820 789 : return decl;
5821 : }
5822 :
5823 :
5824 : /* Output an initialized decl for a module variable. */
5825 :
5826 : static void
5827 150713 : gfc_create_module_variable (gfc_symbol * sym)
5828 : {
5829 150713 : tree decl;
5830 :
5831 : /* Module functions with alternate entries are dealt with later and
5832 : would get caught by the next condition. */
5833 150713 : if (sym->attr.entry)
5834 : return;
5835 :
5836 : /* Make sure we convert the types of the derived types from iso_c_binding
5837 : into (void *). */
5838 150232 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
5839 31766 : && sym->ts.type == BT_DERIVED)
5840 1466 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
5841 :
5842 150232 : if (gfc_fl_struct (sym->attr.flavor)
5843 24676 : && sym->backend_decl
5844 7293 : && TREE_CODE (sym->backend_decl) == RECORD_TYPE)
5845 : {
5846 7259 : decl = sym->backend_decl;
5847 7259 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5848 :
5849 7259 : if (!sym->attr.use_assoc && !sym->attr.used_in_submodule)
5850 : {
5851 7162 : gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE
5852 : || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl);
5853 7162 : gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE
5854 : || DECL_CONTEXT (TYPE_STUB_DECL (decl))
5855 : == sym->ns->proc_name->backend_decl);
5856 : }
5857 7259 : TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5858 7259 : DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl;
5859 7259 : gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl));
5860 : }
5861 :
5862 : /* Only output variables, procedure pointers and array valued,
5863 : or derived type, parameters. */
5864 150232 : if (sym->attr.flavor != FL_VARIABLE
5865 126381 : && !(sym->attr.flavor == FL_PARAMETER
5866 40412 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
5867 125331 : && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer))
5868 : return;
5869 :
5870 24974 : if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl)
5871 : {
5872 461 : decl = sym->backend_decl;
5873 461 : gcc_assert (DECL_FILE_SCOPE_P (decl));
5874 461 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5875 461 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5876 461 : gfc_module_add_decl (cur_module, decl);
5877 : }
5878 :
5879 : /* Don't generate variables from other modules. Variables from
5880 : COMMONs and Cray pointees will already have been generated. */
5881 24974 : if (sym->attr.use_assoc || sym->attr.used_in_submodule
5882 19774 : || sym->attr.in_common || sym->attr.cray_pointee)
5883 : return;
5884 :
5885 : /* Equivalenced variables arrive here after creation. */
5886 19455 : if (sym->backend_decl
5887 654 : && (sym->equiv_built || sym->attr.in_equivalence))
5888 : return;
5889 :
5890 19368 : if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target)
5891 0 : gfc_internal_error ("backend decl for module variable %qs already exists",
5892 : sym->name);
5893 :
5894 19368 : if (sym->module && !sym->attr.result && !sym->attr.dummy
5895 19368 : && (sym->attr.access == ACCESS_UNKNOWN
5896 3916 : && (sym->ns->default_access == ACCESS_PRIVATE
5897 3624 : || (sym->ns->default_access == ACCESS_UNKNOWN
5898 3610 : && flag_module_private))))
5899 293 : sym->attr.access = ACCESS_PRIVATE;
5900 :
5901 19368 : if (warn_unused_variable && !sym->attr.referenced
5902 138 : && sym->attr.access == ACCESS_PRIVATE)
5903 3 : gfc_warning (OPT_Wunused_value,
5904 : "Unused PRIVATE module variable %qs declared at %L",
5905 : sym->name, &sym->declared_at);
5906 :
5907 : /* We always want module variables to be created. */
5908 19368 : sym->attr.referenced = 1;
5909 : /* Create the decl. */
5910 19368 : decl = gfc_get_symbol_decl (sym);
5911 :
5912 : /* Create the variable. */
5913 19368 : pushdecl (decl);
5914 19368 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE
5915 : || ((sym->ns->parent->proc_name->attr.flavor == FL_MODULE
5916 : || sym->ns->parent->proc_name->attr.flavor == FL_PROCEDURE)
5917 : && sym->fn_result_spec));
5918 19368 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5919 19368 : rest_of_decl_compilation (decl, 1, 0);
5920 19368 : gfc_module_add_decl (cur_module, decl);
5921 :
5922 : /* Also add length of strings. */
5923 19368 : if (sym->ts.type == BT_CHARACTER)
5924 : {
5925 424 : tree length;
5926 :
5927 424 : length = sym->ts.u.cl->backend_decl;
5928 424 : gcc_assert (length || sym->attr.proc_pointer);
5929 423 : if (length && !INTEGER_CST_P (length))
5930 : {
5931 54 : pushdecl (length);
5932 54 : rest_of_decl_compilation (length, 1, 0);
5933 : }
5934 : }
5935 :
5936 19368 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
5937 35 : && sym->attr.referenced && !sym->attr.use_assoc)
5938 35 : has_coarray_vars_or_accessors = true;
5939 : }
5940 :
5941 : /* Emit debug information for USE statements. */
5942 :
5943 : static void
5944 98194 : gfc_trans_use_stmts (gfc_namespace * ns)
5945 : {
5946 98194 : gfc_use_list *use_stmt;
5947 110391 : for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next)
5948 : {
5949 12197 : struct module_htab_entry *entry
5950 12197 : = gfc_find_module (use_stmt->module_name);
5951 12197 : gfc_use_rename *rent;
5952 :
5953 12197 : if (entry->namespace_decl == NULL)
5954 : {
5955 1338 : entry->namespace_decl
5956 1338 : = build_decl (input_location,
5957 : NAMESPACE_DECL,
5958 : get_identifier (use_stmt->module_name),
5959 : void_type_node);
5960 1338 : DECL_EXTERNAL (entry->namespace_decl) = 1;
5961 : }
5962 12197 : input_location = gfc_get_location (&use_stmt->where);
5963 12197 : if (!use_stmt->only_flag)
5964 10598 : (*debug_hooks->imported_module_or_decl) (entry->namespace_decl,
5965 : NULL_TREE,
5966 10598 : ns->proc_name->backend_decl,
5967 : false, false);
5968 14973 : for (rent = use_stmt->rename; rent; rent = rent->next)
5969 : {
5970 2776 : tree decl, local_name;
5971 :
5972 2776 : if (rent->op != INTRINSIC_NONE)
5973 105 : continue;
5974 :
5975 2671 : hashval_t hash = htab_hash_string (rent->use_name);
5976 2671 : tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash,
5977 : INSERT);
5978 2671 : if (*slot == NULL)
5979 : {
5980 1547 : gfc_symtree *st;
5981 :
5982 1547 : st = gfc_find_symtree (ns->sym_root,
5983 1547 : rent->local_name[0]
5984 : ? rent->local_name : rent->use_name);
5985 :
5986 : /* The following can happen if a derived type is renamed. */
5987 1547 : if (!st)
5988 : {
5989 0 : char *name;
5990 0 : name = xstrdup (rent->local_name[0]
5991 : ? rent->local_name : rent->use_name);
5992 0 : name[0] = (char) TOUPPER ((unsigned char) name[0]);
5993 0 : st = gfc_find_symtree (ns->sym_root, name);
5994 0 : free (name);
5995 0 : gcc_assert (st);
5996 : }
5997 :
5998 : /* Sometimes, generic interfaces wind up being over-ruled by a
5999 : local symbol (see PR41062). */
6000 1547 : if (!st->n.sym->attr.use_assoc)
6001 : {
6002 2 : *slot = error_mark_node;
6003 2 : entry->decls->clear_slot (slot);
6004 2 : continue;
6005 : }
6006 :
6007 1545 : if (st->n.sym->backend_decl
6008 173 : && DECL_P (st->n.sym->backend_decl)
6009 171 : && st->n.sym->module
6010 171 : && strcmp (st->n.sym->module, use_stmt->module_name) == 0)
6011 : {
6012 162 : gcc_assert (DECL_EXTERNAL (entry->namespace_decl)
6013 : || !VAR_P (st->n.sym->backend_decl));
6014 162 : decl = copy_node (st->n.sym->backend_decl);
6015 162 : DECL_CONTEXT (decl) = entry->namespace_decl;
6016 162 : DECL_EXTERNAL (decl) = 1;
6017 162 : DECL_IGNORED_P (decl) = 0;
6018 162 : DECL_INITIAL (decl) = NULL_TREE;
6019 : }
6020 1383 : else if (st->n.sym->attr.flavor == FL_NAMELIST
6021 0 : && st->n.sym->attr.use_only
6022 0 : && st->n.sym->module
6023 0 : && strcmp (st->n.sym->module, use_stmt->module_name)
6024 : == 0)
6025 : {
6026 0 : decl = generate_namelist_decl (st->n.sym);
6027 0 : DECL_CONTEXT (decl) = entry->namespace_decl;
6028 0 : DECL_EXTERNAL (decl) = 1;
6029 0 : DECL_IGNORED_P (decl) = 0;
6030 0 : DECL_INITIAL (decl) = NULL_TREE;
6031 : }
6032 : else
6033 : {
6034 1383 : *slot = error_mark_node;
6035 1383 : entry->decls->clear_slot (slot);
6036 1383 : continue;
6037 : }
6038 162 : *slot = decl;
6039 : }
6040 1286 : decl = (tree) *slot;
6041 1286 : if (rent->local_name[0])
6042 198 : local_name = get_identifier (rent->local_name);
6043 : else
6044 : local_name = NULL_TREE;
6045 1286 : input_location = gfc_get_location (&rent->where);
6046 1286 : (*debug_hooks->imported_module_or_decl) (decl, local_name,
6047 1286 : ns->proc_name->backend_decl,
6048 1286 : !use_stmt->only_flag,
6049 : false);
6050 : }
6051 : }
6052 98194 : }
6053 :
6054 :
6055 : /* Return true if expr is a constant initializer that gfc_conv_initializer
6056 : will handle. */
6057 :
6058 : static bool
6059 24419 : check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array,
6060 : bool pointer)
6061 : {
6062 24437 : gfc_constructor *c;
6063 24437 : gfc_component *cm;
6064 :
6065 24437 : if (pointer)
6066 : return true;
6067 24433 : else if (array)
6068 : {
6069 2622 : if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL)
6070 : return true;
6071 2583 : else if (expr->expr_type == EXPR_STRUCTURE)
6072 : return check_constant_initializer (expr, ts, false, false);
6073 2565 : else if (expr->expr_type != EXPR_ARRAY)
6074 : return false;
6075 2565 : for (c = gfc_constructor_first (expr->value.constructor);
6076 134130 : c; c = gfc_constructor_next (c))
6077 : {
6078 131565 : if (c->iterator)
6079 : return false;
6080 131565 : if (c->expr->expr_type == EXPR_STRUCTURE)
6081 : {
6082 300 : if (!check_constant_initializer (c->expr, ts, false, false))
6083 : return false;
6084 : }
6085 131265 : else if (c->expr->expr_type != EXPR_CONSTANT)
6086 : return false;
6087 : }
6088 : return true;
6089 : }
6090 21811 : else switch (ts->type)
6091 : {
6092 463 : case_bt_struct:
6093 463 : if (expr->expr_type != EXPR_STRUCTURE)
6094 : return false;
6095 463 : cm = expr->ts.u.derived->components;
6096 463 : for (c = gfc_constructor_first (expr->value.constructor);
6097 1049 : c; c = gfc_constructor_next (c), cm = cm->next)
6098 : {
6099 594 : if (!c->expr || cm->attr.allocatable)
6100 14 : continue;
6101 580 : if (!check_constant_initializer (c->expr, &cm->ts,
6102 : cm->attr.dimension,
6103 : cm->attr.pointer))
6104 : return false;
6105 : }
6106 : return true;
6107 21348 : default:
6108 21348 : return expr->expr_type == EXPR_CONSTANT;
6109 : }
6110 : }
6111 :
6112 : /* Emit debug info for parameters and unreferenced variables with
6113 : initializers. */
6114 :
6115 : static void
6116 1270083 : gfc_emit_parameter_debug_info (gfc_symbol *sym)
6117 : {
6118 1270083 : tree decl;
6119 :
6120 1270083 : if (sym->attr.flavor != FL_PARAMETER
6121 1009115 : && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced))
6122 : return;
6123 :
6124 300855 : if (sym->backend_decl != NULL
6125 278385 : || sym->value == NULL
6126 248118 : || sym->attr.use_assoc
6127 23599 : || sym->attr.dummy
6128 23599 : || sym->attr.result
6129 23599 : || sym->attr.function
6130 23599 : || sym->attr.intrinsic
6131 23599 : || sym->attr.pointer
6132 23589 : || sym->attr.allocatable
6133 23589 : || sym->attr.cray_pointee
6134 23589 : || sym->attr.threadprivate
6135 23588 : || sym->attr.is_bind_c
6136 23588 : || sym->attr.subref_array_pointer
6137 23588 : || sym->attr.assign)
6138 : return;
6139 :
6140 23588 : if (sym->ts.type == BT_CHARACTER)
6141 : {
6142 1354 : gfc_conv_const_charlen (sym->ts.u.cl);
6143 1354 : if (sym->ts.u.cl->backend_decl == NULL
6144 1354 : || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST)
6145 : return;
6146 : }
6147 22234 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp)
6148 : return;
6149 :
6150 23539 : if (sym->as)
6151 : {
6152 2540 : int n;
6153 :
6154 2540 : if (sym->as->type != AS_EXPLICIT)
6155 : return;
6156 5722 : for (n = 0; n < sym->as->rank; n++)
6157 3182 : if (sym->as->lower[n]->expr_type != EXPR_CONSTANT
6158 3182 : || sym->as->upper[n] == NULL
6159 3182 : || sym->as->upper[n]->expr_type != EXPR_CONSTANT)
6160 : return;
6161 : }
6162 :
6163 23539 : if (!check_constant_initializer (sym->value, &sym->ts,
6164 23539 : sym->attr.dimension, false))
6165 : return;
6166 :
6167 23530 : if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension)
6168 : return;
6169 :
6170 : /* Create the decl for the variable or constant. */
6171 47060 : decl = build_decl (input_location,
6172 23530 : sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL,
6173 : gfc_sym_identifier (sym), gfc_sym_type (sym));
6174 23530 : if (sym->attr.flavor == FL_PARAMETER)
6175 23293 : TREE_READONLY (decl) = 1;
6176 23530 : gfc_set_decl_location (decl, &sym->declared_at);
6177 23530 : if (sym->attr.dimension)
6178 2540 : GFC_DECL_PACKED_ARRAY (decl) = 1;
6179 23530 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6180 23530 : TREE_STATIC (decl) = 1;
6181 23530 : TREE_USED (decl) = 1;
6182 23530 : if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL)
6183 2612 : TREE_PUBLIC (decl) = 1;
6184 23530 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
6185 23530 : TREE_TYPE (decl),
6186 23530 : sym->attr.dimension,
6187 : false, false);
6188 23530 : debug_hooks->early_global_decl (decl);
6189 : }
6190 :
6191 :
6192 : static void
6193 7050 : generate_coarray_sym_init (gfc_symbol *sym)
6194 : {
6195 7050 : tree tmp, size, decl, token, desc;
6196 7050 : bool is_lock_type, is_event_type;
6197 7050 : int reg_type;
6198 7050 : gfc_se se;
6199 7050 : symbol_attribute attr;
6200 :
6201 7050 : if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension
6202 424 : || sym->attr.use_assoc || !sym->attr.referenced
6203 420 : || sym->attr.associate_var
6204 369 : || sym->attr.select_type_temporary)
6205 6681 : return;
6206 :
6207 369 : decl = sym->backend_decl;
6208 369 : TREE_USED(decl) = 1;
6209 369 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl)));
6210 :
6211 738 : is_lock_type = sym->ts.type == BT_DERIVED
6212 158 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6213 403 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE;
6214 :
6215 738 : is_event_type = sym->ts.type == BT_DERIVED
6216 158 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6217 403 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE;
6218 :
6219 : /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108
6220 : to make sure the variable is not optimized away. */
6221 369 : DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1;
6222 :
6223 : /* For lock types, we pass the array size as only the library knows the
6224 : size of the variable. */
6225 369 : if (is_lock_type || is_event_type)
6226 34 : size = gfc_index_one_node;
6227 : else
6228 335 : size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl)));
6229 :
6230 : /* Ensure that we do not have size=0 for zero-sized arrays. */
6231 369 : size = fold_build2_loc (input_location, MAX_EXPR, size_type_node,
6232 : fold_convert (size_type_node, size),
6233 : build_int_cst (size_type_node, 1));
6234 :
6235 369 : if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl)))
6236 : {
6237 111 : tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl));
6238 111 : size = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
6239 : fold_convert (size_type_node, tmp), size);
6240 : }
6241 :
6242 369 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE);
6243 1107 : token = gfc_build_addr_expr (ppvoid_type_node,
6244 369 : GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl)));
6245 369 : if (is_lock_type)
6246 29 : reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC;
6247 340 : else if (is_event_type)
6248 : reg_type = GFC_CAF_EVENT_STATIC;
6249 : else
6250 335 : reg_type = GFC_CAF_COARRAY_STATIC;
6251 :
6252 : /* Compile the symbol attribute. */
6253 369 : if (sym->ts.type == BT_CLASS)
6254 : {
6255 0 : attr = CLASS_DATA (sym)->attr;
6256 : /* The pointer attribute is always set on classes, overwrite it with the
6257 : class_pointer attribute, which denotes the pointer for classes. */
6258 0 : attr.pointer = attr.class_pointer;
6259 : }
6260 : else
6261 369 : attr = sym->attr;
6262 369 : gfc_init_se (&se, NULL);
6263 369 : desc = gfc_conv_scalar_to_descriptor (&se, decl, attr);
6264 369 : gfc_add_block_to_block (&caf_init_block, &se.pre);
6265 :
6266 369 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size,
6267 369 : build_int_cst (integer_type_node, reg_type),
6268 : token, gfc_build_addr_expr (pvoid_type_node, desc),
6269 : null_pointer_node, /* stat. */
6270 : null_pointer_node, /* errgmsg. */
6271 : build_zero_cst (size_type_node)); /* errmsg_len. */
6272 369 : gfc_add_expr_to_block (&caf_init_block, tmp);
6273 369 : gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl),
6274 : gfc_conv_descriptor_data_get (desc)));
6275 :
6276 : /* Handle "static" initializer. */
6277 369 : if (sym->value)
6278 : {
6279 110 : if (sym->value->expr_type == EXPR_ARRAY)
6280 : {
6281 12 : gfc_constructor *c, *cnext;
6282 :
6283 : /* Test if the array has more than one element. */
6284 12 : c = gfc_constructor_first (sym->value->value.constructor);
6285 12 : gcc_assert (c); /* Empty constructor should not happen here. */
6286 12 : cnext = gfc_constructor_next (c);
6287 :
6288 12 : if (cnext)
6289 : {
6290 : /* An EXPR_ARRAY with a rank > 1 here has to come from a
6291 : DATA statement. Set its rank here as not to confuse
6292 : the following steps. */
6293 11 : sym->value->rank = 1;
6294 : }
6295 : else
6296 : {
6297 : /* There is only a single value in the constructor, use
6298 : it directly for the assignment. */
6299 1 : gfc_expr *new_expr;
6300 1 : new_expr = gfc_copy_expr (c->expr);
6301 1 : gfc_free_expr (sym->value);
6302 1 : sym->value = new_expr;
6303 : }
6304 : }
6305 :
6306 110 : sym->attr.pointer = 1;
6307 110 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value,
6308 : true, false);
6309 110 : sym->attr.pointer = 0;
6310 110 : gfc_add_expr_to_block (&caf_init_block, tmp);
6311 : }
6312 259 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp)
6313 : {
6314 32 : tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as
6315 : ? sym->as->rank : 0,
6316 : GFC_STRUCTURE_CAF_MODE_IN_COARRAY);
6317 32 : gfc_add_expr_to_block (&caf_init_block, tmp);
6318 : }
6319 : }
6320 :
6321 : struct caf_accessor
6322 : {
6323 : struct caf_accessor *next;
6324 : gfc_expr *hash, *fdecl;
6325 : };
6326 :
6327 : static struct caf_accessor *caf_accessor_head = NULL;
6328 :
6329 : void
6330 1598 : gfc_add_caf_accessor (gfc_expr *h, gfc_expr *f)
6331 : {
6332 1598 : struct caf_accessor *n = XCNEW (struct caf_accessor);
6333 1598 : n->next = caf_accessor_head;
6334 1598 : n->hash = h;
6335 1598 : n->fdecl = f;
6336 1598 : caf_accessor_head = n;
6337 1598 : }
6338 :
6339 : void
6340 496 : create_caf_accessor_register (stmtblock_t *block)
6341 : {
6342 496 : gfc_se se;
6343 496 : tree hash, fdecl;
6344 496 : gfc_init_se (&se, NULL);
6345 2034 : for (struct caf_accessor *curr = caf_accessor_head; curr;)
6346 : {
6347 1538 : gfc_conv_expr (&se, curr->hash);
6348 1538 : hash = se.expr;
6349 1538 : gfc_conv_expr (&se, curr->fdecl);
6350 1538 : fdecl = se.expr;
6351 1538 : TREE_USED (fdecl) = 1;
6352 1538 : TREE_STATIC (fdecl) = 1;
6353 1538 : gcc_assert (FUNCTION_POINTER_TYPE_P (TREE_TYPE (fdecl)));
6354 1538 : gfc_add_expr_to_block (
6355 : block, build_call_expr (gfor_fndecl_caf_register_accessor, 2, hash,
6356 : /*gfc_build_addr_expr (NULL_TREE,*/ fdecl));
6357 1538 : curr = curr->next;
6358 1538 : free (caf_accessor_head);
6359 1538 : caf_accessor_head = curr;
6360 : }
6361 496 : gfc_add_expr_to_block (
6362 : block, build_call_expr (gfor_fndecl_caf_register_accessors_finish, 0));
6363 496 : }
6364 :
6365 : /* Generate constructor function to initialize static, nonallocatable
6366 : coarrays. */
6367 :
6368 : static void
6369 496 : generate_coarray_init (gfc_namespace *ns)
6370 : {
6371 496 : tree fndecl, tmp, decl, save_fn_decl;
6372 :
6373 496 : save_fn_decl = current_function_decl;
6374 496 : push_function_context ();
6375 :
6376 496 : tmp = build_function_type_list (void_type_node, NULL_TREE);
6377 496 : fndecl = build_decl (input_location, FUNCTION_DECL,
6378 : create_tmp_var_name ("_caf_init"), tmp);
6379 :
6380 496 : DECL_STATIC_CONSTRUCTOR (fndecl) = 1;
6381 496 : SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY);
6382 :
6383 496 : decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node);
6384 496 : DECL_ARTIFICIAL (decl) = 1;
6385 496 : DECL_IGNORED_P (decl) = 1;
6386 496 : DECL_CONTEXT (decl) = fndecl;
6387 496 : DECL_RESULT (fndecl) = decl;
6388 :
6389 496 : pushdecl (fndecl);
6390 496 : current_function_decl = fndecl;
6391 496 : announce_function (fndecl);
6392 :
6393 496 : rest_of_decl_compilation (fndecl, 0, 0);
6394 496 : make_decl_rtl (fndecl);
6395 496 : allocate_struct_function (fndecl, false);
6396 :
6397 496 : pushlevel ();
6398 496 : gfc_init_block (&caf_init_block);
6399 :
6400 496 : create_caf_accessor_register (&caf_init_block);
6401 :
6402 496 : gfc_traverse_ns (ns, generate_coarray_sym_init);
6403 :
6404 496 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block);
6405 496 : decl = getdecls ();
6406 :
6407 496 : poplevel (1, 1);
6408 496 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
6409 :
6410 992 : DECL_SAVED_TREE (fndecl)
6411 992 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
6412 992 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
6413 496 : dump_function (TDI_original, fndecl);
6414 :
6415 496 : cfun->function_end_locus = input_location;
6416 496 : set_cfun (NULL);
6417 :
6418 496 : if (decl_function_context (fndecl))
6419 476 : (void) cgraph_node::create (fndecl);
6420 : else
6421 20 : cgraph_node::finalize_function (fndecl, true);
6422 :
6423 496 : pop_function_context ();
6424 496 : current_function_decl = save_fn_decl;
6425 496 : }
6426 :
6427 :
6428 : static void
6429 150713 : create_module_nml_decl (gfc_symbol *sym)
6430 : {
6431 150713 : if (sym->attr.flavor == FL_NAMELIST)
6432 : {
6433 45 : tree decl = generate_namelist_decl (sym);
6434 45 : pushdecl (decl);
6435 45 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
6436 45 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6437 45 : rest_of_decl_compilation (decl, 1, 0);
6438 45 : gfc_module_add_decl (cur_module, decl);
6439 : }
6440 150713 : }
6441 :
6442 : static void
6443 290104 : gfc_handle_omp_declare_variant (gfc_symbol * sym)
6444 : {
6445 290104 : if (sym->attr.external
6446 97069 : && sym->formal_ns
6447 93100 : && sym->formal_ns->omp_declare_variant)
6448 : {
6449 26 : gfc_namespace *ns = gfc_current_ns;
6450 26 : gfc_current_ns = sym->ns;
6451 26 : gfc_get_symbol_decl (sym);
6452 26 : gfc_current_ns = ns;
6453 : }
6454 290104 : }
6455 :
6456 : /* Generate all the required code for module variables. */
6457 :
6458 : void
6459 9592 : gfc_generate_module_vars (gfc_namespace * ns)
6460 : {
6461 9592 : module_namespace = ns;
6462 9592 : cur_module = gfc_find_module (ns->proc_name->name);
6463 :
6464 : /* Check if the frontend left the namespace in a reasonable state. */
6465 9592 : gcc_assert (ns->proc_name && !ns->proc_name->tlink);
6466 :
6467 : /* Generate COMMON blocks. */
6468 9592 : gfc_trans_common (ns);
6469 :
6470 9592 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
6471 :
6472 : /* Create decls for all the module variables. */
6473 9592 : gfc_traverse_ns (ns, gfc_create_module_variable);
6474 9592 : gfc_traverse_ns (ns, create_module_nml_decl);
6475 :
6476 9592 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
6477 20 : generate_coarray_init (ns);
6478 :
6479 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
6480 : especially as some late diagnostic is only done on tree level. */
6481 9592 : if (flag_openmp)
6482 1091 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
6483 :
6484 9592 : cur_module = NULL;
6485 :
6486 9592 : gfc_trans_use_stmts (ns);
6487 9592 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
6488 9592 : }
6489 :
6490 :
6491 : static void
6492 88602 : gfc_generate_contained_functions (gfc_namespace * parent)
6493 : {
6494 88602 : gfc_namespace *ns;
6495 :
6496 : /* We create all the prototypes before generating any code. */
6497 112623 : for (ns = parent->contained; ns; ns = ns->sibling)
6498 : {
6499 : /* Skip namespaces from used modules. */
6500 24021 : if (ns->parent != parent)
6501 0 : continue;
6502 :
6503 24021 : gfc_create_function_decl (ns, false);
6504 : }
6505 :
6506 112623 : for (ns = parent->contained; ns; ns = ns->sibling)
6507 : {
6508 : /* Skip namespaces from used modules. */
6509 24021 : if (ns->parent != parent)
6510 0 : continue;
6511 :
6512 24021 : gfc_generate_function_code (ns);
6513 : }
6514 88602 : }
6515 :
6516 :
6517 : /* Drill down through expressions for the array specification bounds and
6518 : character length calling generate_local_decl for all those variables
6519 : that have not already been declared. */
6520 :
6521 : static void
6522 : generate_local_decl (gfc_symbol *);
6523 :
6524 : /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */
6525 :
6526 : static bool
6527 117325 : expr_decls (gfc_expr *e, gfc_symbol *sym,
6528 : int *f ATTRIBUTE_UNUSED)
6529 : {
6530 117325 : if (e->expr_type != EXPR_VARIABLE
6531 8537 : || sym == e->symtree->n.sym
6532 8524 : || e->symtree->n.sym->mark
6533 770 : || e->symtree->n.sym->ns != sym->ns)
6534 : return false;
6535 :
6536 770 : generate_local_decl (e->symtree->n.sym);
6537 770 : return false;
6538 : }
6539 :
6540 : static void
6541 155036 : generate_expr_decls (gfc_symbol *sym, gfc_expr *e)
6542 : {
6543 0 : gfc_traverse_expr (e, sym, expr_decls, 0);
6544 0 : }
6545 :
6546 :
6547 : /* Check for dependencies in the character length and array spec. */
6548 :
6549 : static void
6550 202931 : generate_dependency_declarations (gfc_symbol *sym)
6551 : {
6552 202931 : int i;
6553 :
6554 202931 : if (sym->ts.type == BT_CHARACTER
6555 17938 : && sym->ts.u.cl
6556 17938 : && sym->ts.u.cl->length
6557 14675 : && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT)
6558 1100 : generate_expr_decls (sym, sym->ts.u.cl->length);
6559 :
6560 202931 : if (sym->as && sym->as->rank)
6561 : {
6562 130606 : for (i = 0; i < sym->as->rank; i++)
6563 : {
6564 76968 : generate_expr_decls (sym, sym->as->lower[i]);
6565 76968 : generate_expr_decls (sym, sym->as->upper[i]);
6566 : }
6567 : }
6568 202931 : }
6569 :
6570 :
6571 : /* Generate decls for all local variables. We do this to ensure correct
6572 : handling of expressions which only appear in the specification of
6573 : other functions. */
6574 :
6575 : static void
6576 1147056 : generate_local_decl (gfc_symbol * sym)
6577 : {
6578 1147056 : if (sym->attr.flavor == FL_VARIABLE)
6579 : {
6580 301397 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
6581 624 : && sym->attr.referenced && !sym->attr.use_assoc)
6582 565 : has_coarray_vars_or_accessors = true;
6583 :
6584 301397 : if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master)
6585 202931 : generate_dependency_declarations (sym);
6586 :
6587 301397 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
6588 : {
6589 2 : if (sym->attr.dummy)
6590 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6591 : "dummy argument", sym->name, &sym->declared_at);
6592 : else
6593 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6594 : "local variable", sym->name, &sym->declared_at);
6595 : }
6596 :
6597 301397 : if (sym->attr.referenced)
6598 266141 : gfc_get_symbol_decl (sym);
6599 :
6600 : /* Warnings for unused dummy arguments. */
6601 35256 : else if (sym->attr.dummy && !sym->attr.in_namelist)
6602 : {
6603 : /* INTENT(out) dummy arguments are likely meant to be set. */
6604 6571 : if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT)
6605 : {
6606 9 : if (sym->ts.type != BT_DERIVED)
6607 6 : gfc_warning (OPT_Wunused_dummy_argument,
6608 : "Dummy argument %qs at %L was declared "
6609 : "INTENT(OUT) but was not set", sym->name,
6610 : &sym->declared_at);
6611 3 : else if (!gfc_has_default_initializer (sym->ts.u.derived)
6612 3 : && !sym->ts.u.derived->attr.zero_comp)
6613 1 : gfc_warning (OPT_Wunused_dummy_argument,
6614 : "Derived-type dummy argument %qs at %L was "
6615 : "declared INTENT(OUT) but was not set and "
6616 : "does not have a default initializer",
6617 : sym->name, &sym->declared_at);
6618 9 : if (sym->backend_decl != NULL_TREE)
6619 9 : suppress_warning (sym->backend_decl);
6620 : }
6621 6562 : else if (warn_unused_dummy_argument)
6622 : {
6623 10 : if (!sym->attr.artificial)
6624 4 : gfc_warning (OPT_Wunused_dummy_argument,
6625 : "Unused dummy argument %qs at %L", sym->name,
6626 : &sym->declared_at);
6627 :
6628 10 : if (sym->backend_decl != NULL_TREE)
6629 4 : suppress_warning (sym->backend_decl);
6630 : }
6631 : }
6632 :
6633 : /* Warn for unused variables, but not if they're inside a common
6634 : block or a namelist. */
6635 28685 : else if (warn_unused_variable
6636 43 : && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist))
6637 : {
6638 43 : if (sym->attr.use_only)
6639 : {
6640 1 : gfc_warning (OPT_Wunused_variable,
6641 : "Unused module variable %qs which has been "
6642 : "explicitly imported at %L", sym->name,
6643 : &sym->declared_at);
6644 1 : if (sym->backend_decl != NULL_TREE)
6645 0 : suppress_warning (sym->backend_decl);
6646 : }
6647 42 : else if (!sym->attr.use_assoc)
6648 : {
6649 : /* Corner case: the symbol may be an entry point. At this point,
6650 : it may appear to be an unused variable. Suppress warning. */
6651 8 : bool enter = false;
6652 8 : gfc_entry_list *el;
6653 :
6654 14 : for (el = sym->ns->entries; el; el=el->next)
6655 6 : if (strcmp(sym->name, el->sym->name) == 0)
6656 2 : enter = true;
6657 :
6658 8 : if (!enter)
6659 6 : gfc_warning (OPT_Wunused_variable,
6660 : "Unused variable %qs declared at %L",
6661 : sym->name, &sym->declared_at);
6662 8 : if (sym->backend_decl != NULL_TREE)
6663 0 : suppress_warning (sym->backend_decl);
6664 : }
6665 : }
6666 :
6667 : /* For variable length CHARACTER parameters, the PARM_DECL already
6668 : references the length variable, so force gfc_get_symbol_decl
6669 : even when not referenced. If optimize > 0, it will be optimized
6670 : away anyway. But do this only after emitting -Wunused-parameter
6671 : warning if requested. */
6672 301397 : if (sym->attr.dummy && !sym->attr.referenced
6673 6571 : && sym->ts.type == BT_CHARACTER
6674 814 : && sym->ts.u.cl->backend_decl != NULL
6675 811 : && VAR_P (sym->ts.u.cl->backend_decl))
6676 : {
6677 6 : sym->attr.referenced = 1;
6678 6 : gfc_get_symbol_decl (sym);
6679 : }
6680 :
6681 : /* INTENT(out) dummy arguments and result variables with allocatable
6682 : components are reset by default and need to be set referenced to
6683 : generate the code for nullification and automatic lengths. */
6684 301397 : if (!sym->attr.referenced
6685 35250 : && sym->ts.type == BT_DERIVED
6686 21465 : && sym->ts.u.derived->attr.alloc_comp
6687 1769 : && !sym->attr.pointer
6688 1768 : && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT)
6689 1732 : ||
6690 1732 : (sym->attr.result && sym != sym->result)))
6691 : {
6692 36 : sym->attr.referenced = 1;
6693 36 : gfc_get_symbol_decl (sym);
6694 : }
6695 :
6696 : /* Check for dependencies in the array specification and string
6697 : length, adding the necessary declarations to the function. We
6698 : mark the symbol now, as well as in traverse_ns, to prevent
6699 : getting stuck in a circular dependency. */
6700 301397 : sym->mark = 1;
6701 : }
6702 845659 : else if (sym->attr.flavor == FL_PARAMETER)
6703 : {
6704 220686 : if (warn_unused_parameter
6705 524 : && !sym->attr.referenced)
6706 : {
6707 467 : if (!sym->attr.use_assoc)
6708 4 : gfc_warning (OPT_Wunused_parameter,
6709 : "Unused parameter %qs declared at %L", sym->name,
6710 : &sym->declared_at);
6711 463 : else if (sym->attr.use_only)
6712 1 : gfc_warning (OPT_Wunused_parameter,
6713 : "Unused parameter %qs which has been explicitly "
6714 : "imported at %L", sym->name, &sym->declared_at);
6715 : }
6716 :
6717 220686 : if (sym->ns && sym->ns->construct_entities)
6718 : {
6719 : /* Construction of the intrinsic modules within a BLOCK
6720 : construct, where ONLY and RENAMED entities are included,
6721 : seems to be bogus. This is a workaround that can be removed
6722 : if someone ever takes on the task to creating full-fledge
6723 : modules. See PR 69455. */
6724 128 : if (sym->attr.referenced
6725 85 : && sym->from_intmod != INTMOD_ISO_C_BINDING
6726 60 : && sym->from_intmod != INTMOD_ISO_FORTRAN_ENV)
6727 32 : gfc_get_symbol_decl (sym);
6728 128 : sym->mark = 1;
6729 : }
6730 : }
6731 624973 : else if (sym->attr.flavor == FL_PROCEDURE)
6732 : {
6733 : /* TODO: move to the appropriate place in resolve.cc. */
6734 519909 : if (warn_return_type > 0
6735 4997 : && sym->attr.function
6736 3701 : && sym->result
6737 3492 : && sym != sym->result
6738 444 : && !sym->result->attr.referenced
6739 36 : && !sym->attr.use_assoc
6740 23 : && sym->attr.if_source != IFSRC_IFBODY)
6741 : {
6742 23 : gfc_warning (OPT_Wreturn_type,
6743 : "Return value %qs of function %qs declared at "
6744 : "%L not set", sym->result->name, sym->name,
6745 : &sym->result->declared_at);
6746 :
6747 : /* Prevents "Unused variable" warning for RESULT variables. */
6748 23 : sym->result->mark = 1;
6749 : }
6750 : }
6751 :
6752 1147056 : if (sym->attr.dummy == 1)
6753 : {
6754 : /* The tree type for scalar character dummy arguments of BIND(C)
6755 : procedures, if they are passed by value, should be unsigned char.
6756 : The value attribute implies the dummy is a scalar. */
6757 105705 : if (sym->attr.value == 1 && sym->backend_decl != NULL
6758 9036 : && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop
6759 254 : && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c)
6760 : {
6761 : /* We used to modify the tree here. Now it is done earlier in
6762 : the front-end, so we only check it here to avoid regressions. */
6763 242 : gcc_assert (TREE_CODE (TREE_TYPE (sym->backend_decl)) == INTEGER_TYPE);
6764 242 : gcc_assert (TYPE_UNSIGNED (TREE_TYPE (sym->backend_decl)) == 1);
6765 242 : gcc_assert (TYPE_PRECISION (TREE_TYPE (sym->backend_decl)) == CHAR_TYPE_SIZE);
6766 242 : gcc_assert (DECL_BY_REFERENCE (sym->backend_decl) == 0);
6767 : }
6768 :
6769 : /* Unused procedure passed as dummy argument. */
6770 105705 : if (sym->attr.flavor == FL_PROCEDURE)
6771 : {
6772 943 : if (!sym->attr.referenced && !sym->attr.artificial)
6773 : {
6774 58 : if (warn_unused_dummy_argument)
6775 2 : gfc_warning (OPT_Wunused_dummy_argument,
6776 : "Unused dummy argument %qs at %L", sym->name,
6777 : &sym->declared_at);
6778 : }
6779 :
6780 : /* Silence bogus "unused parameter" warnings from the
6781 : middle end. */
6782 943 : if (sym->backend_decl != NULL_TREE)
6783 943 : suppress_warning (sym->backend_decl);
6784 : }
6785 : }
6786 :
6787 : /* Make sure we convert the types of the derived types from iso_c_binding
6788 : into (void *). */
6789 1147056 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
6790 82832 : && sym->ts.type == BT_DERIVED)
6791 3447 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
6792 1147056 : }
6793 :
6794 :
6795 : static void
6796 1147063 : generate_local_nml_decl (gfc_symbol * sym)
6797 : {
6798 1147063 : if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc)
6799 : {
6800 744 : tree decl = generate_namelist_decl (sym);
6801 744 : pushdecl (decl);
6802 : }
6803 1147063 : }
6804 :
6805 :
6806 : static void
6807 103428 : generate_local_vars (gfc_namespace * ns)
6808 : {
6809 103428 : gfc_traverse_ns (ns, generate_local_decl);
6810 103428 : gfc_traverse_ns (ns, generate_local_nml_decl);
6811 103428 : }
6812 :
6813 :
6814 : /* Generate a switch statement to jump to the correct entry point. Also
6815 : creates the label decls for the entry points. */
6816 :
6817 : static tree
6818 667 : gfc_trans_entry_master_switch (gfc_entry_list * el)
6819 : {
6820 667 : stmtblock_t block;
6821 667 : tree label;
6822 667 : tree tmp;
6823 667 : tree val;
6824 :
6825 667 : gfc_init_block (&block);
6826 2746 : for (; el; el = el->next)
6827 : {
6828 : /* Add the case label. */
6829 1412 : label = gfc_build_label_decl (NULL_TREE);
6830 1412 : val = build_int_cst (gfc_array_index_type, el->id);
6831 1412 : tmp = build_case_label (val, NULL_TREE, label);
6832 1412 : gfc_add_expr_to_block (&block, tmp);
6833 :
6834 : /* And jump to the actual entry point. */
6835 1412 : label = gfc_build_label_decl (NULL_TREE);
6836 1412 : tmp = build1_v (GOTO_EXPR, label);
6837 1412 : gfc_add_expr_to_block (&block, tmp);
6838 :
6839 : /* Save the label decl. */
6840 1412 : el->label = label;
6841 : }
6842 667 : tmp = gfc_finish_block (&block);
6843 : /* The first argument selects the entry point. */
6844 667 : val = DECL_ARGUMENTS (current_function_decl);
6845 667 : tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp);
6846 667 : return tmp;
6847 : }
6848 :
6849 :
6850 : /* Add code to string lengths of actual arguments passed to a function against
6851 : the expected lengths of the dummy arguments. */
6852 :
6853 : static void
6854 2907 : add_argument_checking (stmtblock_t *block, gfc_symbol *sym)
6855 : {
6856 2907 : gfc_formal_arglist *formal;
6857 :
6858 5761 : for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next)
6859 2854 : if (formal->sym && formal->sym->ts.type == BT_CHARACTER
6860 604 : && !formal->sym->ts.deferred)
6861 : {
6862 554 : enum tree_code comparison;
6863 554 : tree cond;
6864 554 : tree argname;
6865 554 : gfc_symbol *fsym;
6866 554 : gfc_charlen *cl;
6867 554 : const char *message;
6868 :
6869 554 : fsym = formal->sym;
6870 554 : cl = fsym->ts.u.cl;
6871 :
6872 554 : gcc_assert (cl);
6873 554 : gcc_assert (cl->passed_length != NULL_TREE);
6874 554 : gcc_assert (cl->backend_decl != NULL_TREE);
6875 :
6876 : /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the
6877 : string lengths must match exactly. Otherwise, it is only required
6878 : that the actual string length is *at least* the expected one.
6879 : Sequence association allows for a mismatch of the string length
6880 : if the actual argument is (part of) an array, but only if the
6881 : dummy argument is an array. (See "Sequence association" in
6882 : Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */
6883 554 : if (fsym->attr.pointer || fsym->attr.allocatable
6884 446 : || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE
6885 33 : || fsym->as->type == AS_ASSUMED_RANK)))
6886 : {
6887 196 : comparison = NE_EXPR;
6888 196 : message = _("Actual string length does not match the declared one"
6889 : " for dummy argument '%s' (%ld/%ld)");
6890 : }
6891 358 : else if ((fsym->as && fsym->as->rank != 0) || fsym->attr.artificial)
6892 33 : continue;
6893 : else
6894 : {
6895 325 : comparison = LT_EXPR;
6896 325 : message = _("Actual string length is shorter than the declared one"
6897 : " for dummy argument '%s' (%ld/%ld)");
6898 : }
6899 :
6900 : /* Build the condition. For optional arguments, an actual length
6901 : of 0 is also acceptable if the associated string is NULL, which
6902 : means the argument was not passed. */
6903 521 : cond = fold_build2_loc (input_location, comparison, logical_type_node,
6904 : cl->passed_length, cl->backend_decl);
6905 521 : if (fsym->attr.optional)
6906 : {
6907 45 : tree not_absent;
6908 45 : tree not_0length;
6909 45 : tree absent_failed;
6910 :
6911 45 : not_0length = fold_build2_loc (input_location, NE_EXPR,
6912 : logical_type_node,
6913 : cl->passed_length,
6914 : build_zero_cst
6915 45 : (TREE_TYPE (cl->passed_length)));
6916 : /* The symbol needs to be referenced for gfc_get_symbol_decl. */
6917 45 : fsym->attr.referenced = 1;
6918 45 : not_absent = gfc_conv_expr_present (fsym);
6919 :
6920 45 : absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR,
6921 : logical_type_node, not_0length,
6922 : not_absent);
6923 :
6924 45 : cond = fold_build2_loc (input_location, TRUTH_AND_EXPR,
6925 : logical_type_node, cond, absent_failed);
6926 : }
6927 :
6928 : /* Build the runtime check. */
6929 521 : argname = gfc_build_cstring_const (fsym->name);
6930 521 : argname = gfc_build_addr_expr (pchar_type_node, argname);
6931 521 : gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at,
6932 : message, argname,
6933 : fold_convert (long_integer_type_node,
6934 : cl->passed_length),
6935 : fold_convert (long_integer_type_node,
6936 : cl->backend_decl));
6937 : }
6938 2907 : }
6939 :
6940 :
6941 : static void
6942 27106 : create_main_function (tree fndecl)
6943 : {
6944 27106 : tree old_context;
6945 27106 : tree ftn_main;
6946 27106 : tree tmp, decl, result_decl, argc, argv, typelist, arglist;
6947 27106 : stmtblock_t body;
6948 :
6949 27106 : old_context = current_function_decl;
6950 :
6951 27106 : if (old_context)
6952 : {
6953 0 : push_function_context ();
6954 0 : saved_parent_function_decls = saved_function_decls;
6955 0 : saved_function_decls = NULL_TREE;
6956 : }
6957 :
6958 : /* main() function must be declared with global scope. */
6959 27106 : gcc_assert (current_function_decl == NULL_TREE);
6960 :
6961 : /* Declare the function. */
6962 27106 : tmp = build_function_type_list (integer_type_node, integer_type_node,
6963 : build_pointer_type (pchar_type_node),
6964 : NULL_TREE);
6965 27106 : main_identifier_node = get_identifier ("main");
6966 27106 : ftn_main = build_decl (input_location, FUNCTION_DECL,
6967 : main_identifier_node, tmp);
6968 27106 : DECL_EXTERNAL (ftn_main) = 0;
6969 27106 : TREE_PUBLIC (ftn_main) = 1;
6970 27106 : TREE_STATIC (ftn_main) = 1;
6971 27106 : DECL_ATTRIBUTES (ftn_main)
6972 27106 : = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE);
6973 :
6974 : /* Setup the result declaration (for "return 0"). */
6975 27106 : result_decl = build_decl (input_location,
6976 : RESULT_DECL, NULL_TREE, integer_type_node);
6977 27106 : DECL_ARTIFICIAL (result_decl) = 1;
6978 27106 : DECL_IGNORED_P (result_decl) = 1;
6979 27106 : DECL_CONTEXT (result_decl) = ftn_main;
6980 27106 : DECL_RESULT (ftn_main) = result_decl;
6981 :
6982 27106 : pushdecl (ftn_main);
6983 :
6984 : /* Get the arguments. */
6985 :
6986 27106 : arglist = NULL_TREE;
6987 27106 : typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main));
6988 :
6989 27106 : tmp = TREE_VALUE (typelist);
6990 27106 : argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp);
6991 27106 : DECL_CONTEXT (argc) = ftn_main;
6992 27106 : DECL_ARG_TYPE (argc) = TREE_VALUE (typelist);
6993 27106 : TREE_READONLY (argc) = 1;
6994 27106 : gfc_finish_decl (argc);
6995 27106 : arglist = chainon (arglist, argc);
6996 :
6997 27106 : typelist = TREE_CHAIN (typelist);
6998 27106 : tmp = TREE_VALUE (typelist);
6999 27106 : argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp);
7000 27106 : DECL_CONTEXT (argv) = ftn_main;
7001 27106 : DECL_ARG_TYPE (argv) = TREE_VALUE (typelist);
7002 27106 : TREE_READONLY (argv) = 1;
7003 27106 : DECL_BY_REFERENCE (argv) = 1;
7004 27106 : gfc_finish_decl (argv);
7005 27106 : arglist = chainon (arglist, argv);
7006 :
7007 27106 : DECL_ARGUMENTS (ftn_main) = arglist;
7008 27106 : current_function_decl = ftn_main;
7009 27106 : announce_function (ftn_main);
7010 :
7011 27106 : rest_of_decl_compilation (ftn_main, 1, 0);
7012 27106 : make_decl_rtl (ftn_main);
7013 27106 : allocate_struct_function (ftn_main, false);
7014 27106 : pushlevel ();
7015 :
7016 27106 : gfc_init_block (&body);
7017 :
7018 : /* Call some libgfortran initialization routines, call then MAIN__(). */
7019 :
7020 : /* Call _gfortran_caf_init (*argc, ***argv). */
7021 27106 : if (flag_coarray == GFC_FCOARRAY_LIB)
7022 : {
7023 463 : tree pint_type, pppchar_type;
7024 463 : pint_type = build_pointer_type (integer_type_node);
7025 463 : pppchar_type
7026 463 : = build_pointer_type (build_pointer_type (pchar_type_node));
7027 :
7028 463 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2,
7029 : gfc_build_addr_expr (pint_type, argc),
7030 : gfc_build_addr_expr (pppchar_type, argv));
7031 463 : gfc_add_expr_to_block (&body, tmp);
7032 : }
7033 :
7034 : /* Call _gfortran_set_args (argc, argv). */
7035 27106 : TREE_USED (argc) = 1;
7036 27106 : TREE_USED (argv) = 1;
7037 27106 : tmp = build_call_expr_loc (input_location,
7038 : gfor_fndecl_set_args, 2, argc, argv);
7039 27106 : gfc_add_expr_to_block (&body, tmp);
7040 :
7041 : /* Add a call to set_options to set up the runtime library Fortran
7042 : language standard parameters. */
7043 27106 : {
7044 27106 : tree array_type, array, var;
7045 27106 : vec<constructor_elt, va_gc> *v = NULL;
7046 27106 : static const int noptions = 7;
7047 :
7048 : /* Passing a new option to the library requires three modifications:
7049 : + add it to the tree_cons list below
7050 : + change the noptions variable above
7051 : + modify the library (runtime/compile_options.c)! */
7052 :
7053 27106 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7054 : build_int_cst (integer_type_node,
7055 : gfc_option.warn_std));
7056 27106 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7057 : build_int_cst (integer_type_node,
7058 : gfc_option.allow_std));
7059 27106 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7060 : build_int_cst (integer_type_node, pedantic));
7061 27106 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7062 : build_int_cst (integer_type_node, flag_backtrace));
7063 27106 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7064 : build_int_cst (integer_type_node, flag_sign_zero));
7065 27106 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7066 : build_int_cst (integer_type_node,
7067 : (gfc_option.rtcheck
7068 : & GFC_RTCHECK_BOUNDS)));
7069 27106 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7070 : build_int_cst (integer_type_node,
7071 : gfc_option.fpe_summary));
7072 :
7073 27106 : array_type = build_array_type_nelts (integer_type_node, noptions);
7074 27106 : array = build_constructor (array_type, v);
7075 27106 : TREE_CONSTANT (array) = 1;
7076 27106 : TREE_STATIC (array) = 1;
7077 :
7078 : /* Create a static variable to hold the jump table. */
7079 27106 : var = build_decl (input_location, VAR_DECL,
7080 : create_tmp_var_name ("options"), array_type);
7081 27106 : DECL_ARTIFICIAL (var) = 1;
7082 27106 : DECL_IGNORED_P (var) = 1;
7083 27106 : TREE_CONSTANT (var) = 1;
7084 27106 : TREE_STATIC (var) = 1;
7085 27106 : TREE_READONLY (var) = 1;
7086 27106 : DECL_INITIAL (var) = array;
7087 27106 : pushdecl (var);
7088 27106 : var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var);
7089 :
7090 27106 : tmp = build_call_expr_loc (input_location,
7091 : gfor_fndecl_set_options, 2,
7092 : build_int_cst (integer_type_node, noptions), var);
7093 27106 : gfc_add_expr_to_block (&body, tmp);
7094 : }
7095 :
7096 : /* If -ffpe-trap option was provided, add a call to set_fpe so that
7097 : the library will raise a FPE when needed. */
7098 27106 : if (gfc_option.fpe != 0)
7099 : {
7100 6 : tmp = build_call_expr_loc (input_location,
7101 : gfor_fndecl_set_fpe, 1,
7102 : build_int_cst (integer_type_node,
7103 6 : gfc_option.fpe));
7104 6 : gfc_add_expr_to_block (&body, tmp);
7105 : }
7106 :
7107 : /* If this is the main program and an -fconvert option was provided,
7108 : add a call to set_convert. */
7109 :
7110 27106 : if (flag_convert != GFC_FLAG_CONVERT_NATIVE)
7111 : {
7112 12 : tmp = build_call_expr_loc (input_location,
7113 : gfor_fndecl_set_convert, 1,
7114 12 : build_int_cst (integer_type_node, flag_convert));
7115 12 : gfc_add_expr_to_block (&body, tmp);
7116 : }
7117 :
7118 : /* If this is the main program and an -frecord-marker option was provided,
7119 : add a call to set_record_marker. */
7120 :
7121 27106 : if (flag_record_marker != 0)
7122 : {
7123 18 : tmp = build_call_expr_loc (input_location,
7124 : gfor_fndecl_set_record_marker, 1,
7125 : build_int_cst (integer_type_node,
7126 18 : flag_record_marker));
7127 18 : gfc_add_expr_to_block (&body, tmp);
7128 : }
7129 :
7130 27106 : if (flag_max_subrecord_length != 0)
7131 : {
7132 6 : tmp = build_call_expr_loc (input_location,
7133 : gfor_fndecl_set_max_subrecord_length, 1,
7134 : build_int_cst (integer_type_node,
7135 6 : flag_max_subrecord_length));
7136 6 : gfc_add_expr_to_block (&body, tmp);
7137 : }
7138 :
7139 : /* Call MAIN__(). */
7140 27106 : tmp = build_call_expr_loc (input_location,
7141 : fndecl, 0);
7142 27106 : gfc_add_expr_to_block (&body, tmp);
7143 :
7144 : /* Mark MAIN__ as used. */
7145 27106 : TREE_USED (fndecl) = 1;
7146 :
7147 : /* Coarray: Call _gfortran_caf_finalize(void). */
7148 27106 : if (flag_coarray == GFC_FCOARRAY_LIB)
7149 : {
7150 463 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0);
7151 463 : gfc_add_expr_to_block (&body, tmp);
7152 : }
7153 :
7154 : /* "return 0". */
7155 27106 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node,
7156 27106 : DECL_RESULT (ftn_main),
7157 : integer_zero_node);
7158 27106 : tmp = build1_v (RETURN_EXPR, tmp);
7159 27106 : gfc_add_expr_to_block (&body, tmp);
7160 :
7161 :
7162 27106 : DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body);
7163 27106 : decl = getdecls ();
7164 :
7165 : /* Finish off this function and send it for code generation. */
7166 27106 : poplevel (1, 1);
7167 27106 : BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main;
7168 :
7169 54212 : DECL_SAVED_TREE (ftn_main)
7170 54212 : = fold_build3_loc (DECL_SOURCE_LOCATION (ftn_main), BIND_EXPR,
7171 27106 : void_type_node, decl, DECL_SAVED_TREE (ftn_main),
7172 27106 : DECL_INITIAL (ftn_main));
7173 :
7174 : /* Output the GENERIC tree. */
7175 27106 : dump_function (TDI_original, ftn_main);
7176 :
7177 27106 : cgraph_node::finalize_function (ftn_main, true);
7178 :
7179 27106 : if (old_context)
7180 : {
7181 0 : pop_function_context ();
7182 0 : saved_function_decls = saved_parent_function_decls;
7183 : }
7184 27106 : current_function_decl = old_context;
7185 27106 : }
7186 :
7187 :
7188 : /* Generate an appropriate return-statement for a procedure. */
7189 :
7190 : tree
7191 15759 : gfc_generate_return (void)
7192 : {
7193 15759 : gfc_symbol* sym;
7194 15759 : tree result;
7195 15759 : tree fndecl;
7196 :
7197 15759 : sym = current_procedure_symbol;
7198 15759 : fndecl = sym->backend_decl;
7199 :
7200 15759 : if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node)
7201 : result = NULL_TREE;
7202 : else
7203 : {
7204 13430 : result = get_proc_result (sym);
7205 :
7206 : /* Set the return value to the dummy result variable. The
7207 : types may be different for scalar default REAL functions
7208 : with -ff2c, therefore we have to convert. */
7209 13430 : if (result != NULL_TREE)
7210 : {
7211 13419 : result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result);
7212 26838 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7213 13419 : TREE_TYPE (result), DECL_RESULT (fndecl),
7214 : result);
7215 : }
7216 : else
7217 : {
7218 : /* If the function does not have a result variable, result is
7219 : NULL_TREE, and a 'return' is generated without a variable.
7220 : The following generates a 'return __result_XXX' where XXX is
7221 : the function name. */
7222 11 : if (sym == sym->result && sym->attr.function && !flag_f2c)
7223 : {
7224 8 : result = gfc_get_fake_result_decl (sym, 0);
7225 16 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7226 8 : TREE_TYPE (result),
7227 8 : DECL_RESULT (fndecl), result);
7228 : }
7229 : }
7230 : }
7231 :
7232 15759 : return build1_v (RETURN_EXPR, result);
7233 : }
7234 :
7235 :
7236 : static void
7237 1114263 : is_from_ieee_module (gfc_symbol *sym)
7238 : {
7239 1114263 : if (sym->from_intmod == INTMOD_IEEE_FEATURES
7240 : || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS
7241 1114263 : || sym->from_intmod == INTMOD_IEEE_ARITHMETIC)
7242 121692 : seen_ieee_symbol = 1;
7243 1114263 : }
7244 :
7245 :
7246 : static int
7247 88602 : is_ieee_module_used (gfc_namespace *ns)
7248 : {
7249 88602 : seen_ieee_symbol = 0;
7250 0 : gfc_traverse_ns (ns, is_from_ieee_module);
7251 88602 : return seen_ieee_symbol;
7252 : }
7253 :
7254 :
7255 : static gfc_omp_clauses *module_oacc_clauses;
7256 :
7257 :
7258 : static void
7259 146 : add_clause (gfc_symbol *sym, gfc_omp_map_op map_op)
7260 : {
7261 146 : gfc_omp_namelist *n;
7262 :
7263 146 : n = gfc_get_omp_namelist ();
7264 146 : n->sym = sym;
7265 146 : n->where = sym->declared_at;
7266 146 : n->u.map.op = map_op;
7267 :
7268 146 : if (!module_oacc_clauses)
7269 124 : module_oacc_clauses = gfc_get_omp_clauses ();
7270 :
7271 146 : if (module_oacc_clauses->lists[OMP_LIST_MAP])
7272 22 : n->next = module_oacc_clauses->lists[OMP_LIST_MAP];
7273 :
7274 146 : module_oacc_clauses->lists[OMP_LIST_MAP] = n;
7275 146 : }
7276 :
7277 :
7278 : static void
7279 1147063 : find_module_oacc_declare_clauses (gfc_symbol *sym)
7280 : {
7281 1147063 : if (sym->attr.use_assoc)
7282 : {
7283 543318 : gfc_omp_map_op map_op;
7284 :
7285 543318 : if (sym->attr.oacc_declare_create)
7286 543318 : map_op = OMP_MAP_FORCE_ALLOC;
7287 :
7288 543318 : if (sym->attr.oacc_declare_copyin)
7289 2 : map_op = OMP_MAP_FORCE_TO;
7290 :
7291 543318 : if (sym->attr.oacc_declare_deviceptr)
7292 0 : map_op = OMP_MAP_FORCE_DEVICEPTR;
7293 :
7294 543318 : if (sym->attr.oacc_declare_device_resident)
7295 34 : map_op = OMP_MAP_DEVICE_RESIDENT;
7296 :
7297 543318 : if (sym->attr.oacc_declare_create
7298 543208 : || sym->attr.oacc_declare_copyin
7299 543206 : || sym->attr.oacc_declare_deviceptr
7300 543206 : || sym->attr.oacc_declare_device_resident)
7301 : {
7302 146 : sym->attr.referenced = 1;
7303 146 : add_clause (sym, map_op);
7304 : }
7305 : }
7306 1147063 : }
7307 :
7308 :
7309 : void
7310 103428 : finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block)
7311 : {
7312 103428 : gfc_code *code;
7313 103428 : gfc_oacc_declare *oc;
7314 103428 : locus where;
7315 103428 : gfc_omp_clauses *omp_clauses = NULL;
7316 103428 : gfc_omp_namelist *n, *p;
7317 103428 : module_oacc_clauses = NULL;
7318 :
7319 103428 : gfc_locus_from_location (&where, input_location);
7320 103428 : gfc_traverse_ns (ns, find_module_oacc_declare_clauses);
7321 :
7322 103428 : if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM)
7323 : {
7324 45 : gfc_oacc_declare *new_oc;
7325 :
7326 45 : new_oc = gfc_get_oacc_declare ();
7327 45 : new_oc->next = ns->oacc_declare;
7328 45 : new_oc->clauses = module_oacc_clauses;
7329 :
7330 45 : ns->oacc_declare = new_oc;
7331 : }
7332 :
7333 103428 : if (!ns->oacc_declare)
7334 : return;
7335 :
7336 190 : for (oc = ns->oacc_declare; oc; oc = oc->next)
7337 : {
7338 101 : if (oc->module_var)
7339 0 : continue;
7340 :
7341 101 : if (block)
7342 2 : gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed "
7343 : "in BLOCK construct", &oc->loc);
7344 :
7345 :
7346 101 : if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP])
7347 : {
7348 88 : if (omp_clauses == NULL)
7349 : {
7350 76 : omp_clauses = oc->clauses;
7351 76 : continue;
7352 : }
7353 :
7354 48 : for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next)
7355 : ;
7356 :
7357 12 : gcc_assert (p->next == NULL);
7358 :
7359 12 : p->next = omp_clauses->lists[OMP_LIST_MAP];
7360 12 : omp_clauses = oc->clauses;
7361 : }
7362 : }
7363 :
7364 89 : if (!omp_clauses)
7365 : return;
7366 :
7367 212 : for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next)
7368 : {
7369 136 : switch (n->u.map.op)
7370 : {
7371 27 : case OMP_MAP_DEVICE_RESIDENT:
7372 27 : n->u.map.op = OMP_MAP_FORCE_ALLOC;
7373 27 : break;
7374 :
7375 : default:
7376 : break;
7377 : }
7378 : }
7379 :
7380 76 : code = XCNEW (gfc_code);
7381 76 : code->op = EXEC_OACC_DECLARE;
7382 76 : code->loc = where;
7383 :
7384 76 : code->ext.oacc_declare = gfc_get_oacc_declare ();
7385 76 : code->ext.oacc_declare->clauses = omp_clauses;
7386 :
7387 76 : code->block = XCNEW (gfc_code);
7388 76 : code->block->op = EXEC_OACC_DECLARE;
7389 76 : code->block->loc = where;
7390 :
7391 76 : if (ns->code)
7392 73 : code->block->next = ns->code;
7393 :
7394 76 : ns->code = code;
7395 :
7396 76 : return;
7397 : }
7398 :
7399 : static void
7400 1820 : gfc_conv_cfi_to_gfc (stmtblock_t *init, stmtblock_t *finally,
7401 : tree cfi_desc, tree gfc_desc, gfc_symbol *sym)
7402 : {
7403 1820 : stmtblock_t block;
7404 1820 : gfc_init_block (&block);
7405 1820 : tree cfi = build_fold_indirect_ref_loc (input_location, cfi_desc);
7406 1820 : tree idx, etype, tmp, tmp2, size_var = NULL_TREE, rank = NULL_TREE;
7407 1820 : bool do_copy_inout = false;
7408 :
7409 : /* When allocatable + intent out, free the cfi descriptor. */
7410 1820 : if (sym->attr.allocatable && sym->attr.intent == INTENT_OUT)
7411 : {
7412 54 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7413 54 : tree call = builtin_decl_explicit (BUILT_IN_FREE);
7414 54 : call = build_call_expr_loc (input_location, call, 1, tmp);
7415 54 : gfc_add_expr_to_block (&block, fold_convert (void_type_node, call));
7416 54 : gfc_add_modify (&block, tmp,
7417 54 : fold_convert (TREE_TYPE (tmp), null_pointer_node));
7418 : }
7419 :
7420 : /* -fcheck=bound: Do version, rank, attribute, type and is-NULL checks. */
7421 1820 : if (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
7422 : {
7423 654 : char *msg;
7424 654 : tree tmp3;
7425 654 : msg = xasprintf ("Unexpected version %%d (expected %d) in CFI descriptor "
7426 : "passed to dummy argument %s", CFI_VERSION, sym->name);
7427 654 : tmp2 = gfc_get_cfi_desc_version (cfi);
7428 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node, tmp2,
7429 654 : build_int_cst (TREE_TYPE (tmp2), CFI_VERSION));
7430 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7431 : msg, tmp2);
7432 654 : free (msg);
7433 :
7434 : /* Rank check; however, for character(len=*), assumed/explicit-size arrays
7435 : are permitted to differ in rank according to the Fortran rules. */
7436 654 : if (sym->as && sym->as->type != AS_ASSUMED_SIZE
7437 546 : && sym->as->type != AS_EXPLICIT)
7438 : {
7439 438 : if (sym->as->rank != -1)
7440 222 : msg = xasprintf ("Invalid rank %%d (expected %d) in CFI descriptor "
7441 : "passed to dummy argument %s", sym->as->rank,
7442 : sym->name);
7443 : else
7444 216 : msg = xasprintf ("Invalid rank %%d (expected 0..%d) in CFI "
7445 : "descriptor passed to dummy argument %s",
7446 : CFI_MAX_RANK, sym->name);
7447 :
7448 438 : tmp3 = tmp2 = tmp = gfc_get_cfi_desc_rank (cfi);
7449 438 : if (sym->as->rank != -1)
7450 222 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7451 : tmp, build_int_cst (signed_char_type_node,
7452 222 : sym->as->rank));
7453 : else
7454 : {
7455 216 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node,
7456 216 : tmp, build_zero_cst (TREE_TYPE (tmp)));
7457 216 : tmp2 = fold_build2_loc (input_location, GT_EXPR,
7458 : boolean_type_node, tmp2,
7459 216 : build_int_cst (TREE_TYPE (tmp2),
7460 : CFI_MAX_RANK));
7461 216 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7462 : boolean_type_node, tmp, tmp2);
7463 : }
7464 438 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7465 : msg, tmp3);
7466 438 : free (msg);
7467 : }
7468 :
7469 654 : tmp3 = tmp = gfc_get_cfi_desc_attribute (cfi);
7470 654 : if (sym->attr.allocatable || sym->attr.pointer)
7471 : {
7472 6 : int attr = (sym->attr.pointer ? CFI_attribute_pointer
7473 : : CFI_attribute_allocatable);
7474 12 : msg = xasprintf ("Invalid attribute %%d (expected %d) in CFI "
7475 : "descriptor passed to dummy argument %s with %s "
7476 : "attribute", attr, sym->name,
7477 : sym->attr.pointer ? "pointer" : "allocatable");
7478 6 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7479 6 : tmp, build_int_cst (TREE_TYPE (tmp), attr));
7480 6 : }
7481 : else
7482 : {
7483 648 : int amin = MIN (CFI_attribute_pointer,
7484 : MIN (CFI_attribute_allocatable, CFI_attribute_other));
7485 648 : int amax = MAX (CFI_attribute_pointer,
7486 : MAX (CFI_attribute_allocatable, CFI_attribute_other));
7487 648 : msg = xasprintf ("Invalid attribute %%d (expected %d..%d) in CFI "
7488 : "descriptor passed to nonallocatable, nonpointer "
7489 : "dummy argument %s", amin, amax, sym->name);
7490 648 : tmp2 = tmp;
7491 648 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node, tmp,
7492 648 : build_int_cst (TREE_TYPE (tmp), amin));
7493 648 : tmp2 = fold_build2_loc (input_location, GT_EXPR, boolean_type_node, tmp2,
7494 648 : build_int_cst (TREE_TYPE (tmp2), amax));
7495 648 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7496 : boolean_type_node, tmp, tmp2);
7497 648 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7498 : msg, tmp3);
7499 648 : free (msg);
7500 648 : msg = xasprintf ("Invalid unallocatated/unassociated CFI "
7501 : "descriptor passed to nonallocatable, nonpointer "
7502 : "dummy argument %s", sym->name);
7503 648 : tmp3 = tmp = gfc_get_cfi_desc_base_addr (cfi),
7504 648 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7505 : tmp, null_pointer_node);
7506 : }
7507 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7508 : msg, tmp3);
7509 654 : free (msg);
7510 :
7511 654 : if (sym->ts.type != BT_ASSUMED)
7512 : {
7513 654 : int type = CFI_type_other;
7514 654 : if (sym->ts.f90_type == BT_VOID)
7515 : {
7516 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7517 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7518 : }
7519 : else
7520 654 : switch (sym->ts.type)
7521 : {
7522 6 : case BT_INTEGER:
7523 6 : case BT_LOGICAL:
7524 6 : case BT_REAL:
7525 6 : case BT_COMPLEX:
7526 6 : type = CFI_type_from_type_kind (sym->ts.type, sym->ts.kind);
7527 6 : break;
7528 648 : case BT_CHARACTER:
7529 648 : type = CFI_type_from_type_kind (CFI_type_Character,
7530 : sym->ts.kind);
7531 648 : break;
7532 0 : case BT_DERIVED:
7533 0 : type = CFI_type_struct;
7534 0 : break;
7535 0 : case BT_VOID:
7536 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7537 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7538 : break;
7539 :
7540 0 : case BT_UNSIGNED:
7541 0 : gfc_internal_error ("Unsigned not yet implemented");
7542 :
7543 0 : case BT_ASSUMED:
7544 0 : case BT_CLASS:
7545 0 : case BT_PROCEDURE:
7546 0 : case BT_HOLLERITH:
7547 0 : case BT_UNION:
7548 0 : case BT_BOZ:
7549 0 : case BT_UNKNOWN:
7550 0 : gcc_unreachable ();
7551 : }
7552 654 : msg = xasprintf ("Unexpected type %%d (expected %d) in CFI descriptor"
7553 : " passed to dummy argument %s", type, sym->name);
7554 654 : tmp2 = tmp = gfc_get_cfi_desc_type (cfi);
7555 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7556 654 : tmp, build_int_cst (TREE_TYPE (tmp), type));
7557 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7558 : msg, tmp2);
7559 654 : free (msg);
7560 : }
7561 : }
7562 :
7563 1820 : if (!sym->attr.referenced)
7564 73 : goto done;
7565 :
7566 : /* Set string length for len=* and len=:, otherwise, it is already set. */
7567 1747 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
7568 : {
7569 647 : tmp = fold_convert (gfc_array_index_type,
7570 : gfc_get_cfi_desc_elem_len (cfi));
7571 647 : if (sym->ts.kind != 1)
7572 197 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7573 : gfc_array_index_type, tmp,
7574 : build_int_cst (gfc_charlen_type_node,
7575 197 : sym->ts.kind));
7576 647 : gfc_add_modify (&block, sym->ts.u.cl->backend_decl, tmp);
7577 : }
7578 :
7579 1747 : if (sym->ts.type == BT_CHARACTER
7580 1020 : && !INTEGER_CST_P (sym->ts.u.cl->backend_decl))
7581 : {
7582 804 : gfc_conv_string_length (sym->ts.u.cl, NULL, &block);
7583 804 : gfc_trans_vla_type_sizes (sym, &block);
7584 : }
7585 :
7586 : /* gfc->data = cfi->base_addr - or for scalars: gfc = cfi->base_addr.
7587 : assumed-size/explicit-size arrays end up here for character(len=*)
7588 : only. */
7589 1747 : if (!sym->attr.dimension || !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7590 : {
7591 418 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7592 418 : gfc_add_modify (&block, gfc_desc,
7593 418 : fold_convert (TREE_TYPE (gfc_desc), tmp));
7594 418 : if (!sym->attr.dimension)
7595 164 : goto done;
7596 : }
7597 :
7598 1583 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7599 : {
7600 : /* gfc->dtype = ... (from declaration, not from cfi). */
7601 1329 : etype = gfc_get_element_type (TREE_TYPE (gfc_desc));
7602 1329 : gfc_conv_descriptor_dtype_set (&block, gfc_desc,
7603 1329 : gfc_get_dtype_rank_type (sym->as->rank,
7604 : etype));
7605 : /* gfc->data = cfi->base_addr. */
7606 1329 : gfc_conv_descriptor_data_set (&block, gfc_desc,
7607 : gfc_get_cfi_desc_base_addr (cfi));
7608 : }
7609 :
7610 1583 : if (sym->ts.type == BT_ASSUMED)
7611 : {
7612 : /* For type(*), take elem_len + dtype.type from the actual argument. */
7613 19 : gfc_conv_descriptor_elem_len_set (&block, gfc_desc,
7614 : gfc_get_cfi_desc_elem_len (cfi));
7615 19 : tree cond;
7616 19 : tree ctype = gfc_get_cfi_desc_type (cfi);
7617 19 : ctype = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (ctype),
7618 19 : ctype, build_int_cst (TREE_TYPE (ctype),
7619 : CFI_type_mask));
7620 :
7621 : /* if (CFI_type_cptr) BT_VOID else BT_UNKNOWN */
7622 : /* Note: BT_VOID is could also be CFI_type_funcptr, but assume c_ptr. */
7623 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7624 19 : build_int_cst (TREE_TYPE (ctype), CFI_type_cptr));
7625 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, BT_VOID);
7626 19 : tmp2 = gfc_conv_descriptor_type_set (gfc_desc, BT_UNKNOWN);
7627 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7628 : tmp, tmp2);
7629 : /* if (CFI_type_struct) BT_DERIVED else < tmp2 > */
7630 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7631 19 : build_int_cst (TREE_TYPE (ctype),
7632 : CFI_type_struct));
7633 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, BT_DERIVED);
7634 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7635 : tmp, tmp2);
7636 : /* if (CFI_type_Character) BT_CHARACTER else < tmp2 > */
7637 : /* Note: this is kind=1, CFI_type_ucs4_char is handled in the 'else if'
7638 : before (see below, as generated bottom up). */
7639 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7640 19 : build_int_cst (TREE_TYPE (ctype),
7641 : CFI_type_Character));
7642 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, BT_CHARACTER);
7643 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7644 : tmp, tmp2);
7645 : /* if (CFI_type_ucs4_char) BT_CHARACTER else < tmp2 > */
7646 : /* Note: gfc->elem_len = cfi->elem_len/4. */
7647 : /* However, assuming that CFI_type_ucs4_char cannot be recovered, leave
7648 : gfc->elem_len == cfi->elem_len, which helps with operations which use
7649 : sizeof() in Fortran and cfi->elem_len in C. */
7650 19 : tmp = gfc_get_cfi_desc_type (cfi);
7651 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, tmp,
7652 19 : build_int_cst (TREE_TYPE (tmp),
7653 : CFI_type_ucs4_char));
7654 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, BT_CHARACTER);
7655 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7656 : tmp, tmp2);
7657 : /* if (CFI_type_Complex) BT_COMPLEX + cfi->elem_len/2 else < tmp2 > */
7658 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7659 19 : build_int_cst (TREE_TYPE (ctype),
7660 : CFI_type_Complex));
7661 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, BT_COMPLEX);
7662 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7663 : tmp, tmp2);
7664 : /* if (CFI_type_Integer || CFI_type_Logical || CFI_type_Real)
7665 : ctype else <tmp2> */
7666 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7667 19 : build_int_cst (TREE_TYPE (ctype),
7668 : CFI_type_Integer));
7669 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7670 19 : build_int_cst (TREE_TYPE (ctype),
7671 : CFI_type_Logical));
7672 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7673 : cond, tmp);
7674 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7675 19 : build_int_cst (TREE_TYPE (ctype),
7676 : CFI_type_Real));
7677 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7678 : cond, tmp);
7679 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, ctype);
7680 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7681 : tmp, tmp2);
7682 19 : gfc_add_expr_to_block (&block, tmp2);
7683 : }
7684 :
7685 1583 : if (sym->as->rank < 0)
7686 : {
7687 : /* Set gfc->dtype.rank, if assumed-rank. */
7688 587 : rank = fold_convert_loc (input_location, gfc_array_dim_rank_type,
7689 : gfc_get_cfi_desc_rank (cfi));
7690 587 : gfc_conv_descriptor_rank_set (&block, gfc_desc, rank);
7691 : }
7692 996 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7693 : /* In that case, the CFI rank and the declared rank can differ. */
7694 254 : rank = fold_convert_loc (input_location, gfc_array_dim_rank_type,
7695 : gfc_get_cfi_desc_rank (cfi));
7696 : else
7697 742 : rank = gfc_rank_cst[sym->as->rank];
7698 :
7699 : /* With bind(C), the standard requires that both Fortran callers and callees
7700 : handle noncontiguous arrays passed to an dummy with 'contiguous' attribute
7701 : and with character(len=*) + assumed-size/explicit-size arrays.
7702 : cf. Fortran 2018, 18.3.6, paragraph 5 (and for the caller: para. 6). */
7703 1583 : if ((sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length
7704 550 : && (sym->as->type == AS_ASSUMED_SIZE || sym->as->type == AS_EXPLICIT))
7705 1329 : || sym->attr.contiguous)
7706 : {
7707 517 : do_copy_inout = true;
7708 517 : gcc_assert (!sym->attr.pointer);
7709 517 : stmtblock_t block2;
7710 517 : tree data;
7711 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7712 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7713 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7714 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7715 : else
7716 : data = gfc_desc;
7717 :
7718 : /* Is copy-in/out needed? */
7719 : /* do_copyin = rank != 0 && !assumed-size */
7720 517 : tree cond_var = gfc_create_var (boolean_type_node, "do_copyin");
7721 517 : tree cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7722 517 : rank, build_zero_cst (TREE_TYPE (rank)));
7723 : /* dim[rank-1].extent != -1 -> assumed size*/
7724 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (rank),
7725 517 : rank, build_int_cst (TREE_TYPE (rank), 1));
7726 517 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7727 : gfc_get_cfi_dim_extent (cfi, tmp),
7728 : build_int_cst (gfc_array_index_type, -1));
7729 517 : cond = fold_build2_loc (input_location, TRUTH_ANDIF_EXPR,
7730 : boolean_type_node, cond, tmp);
7731 517 : gfc_add_modify (&block, cond_var, cond);
7732 : /* if (do_copyin) do_copyin = ... || ... || ... */
7733 517 : gfc_init_block (&block2);
7734 : /* dim[0].sm != elem_len */
7735 517 : tmp = fold_convert (gfc_array_index_type,
7736 : gfc_get_cfi_desc_elem_len (cfi));
7737 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7738 : gfc_get_cfi_dim_sm (cfi, gfc_index_zero_node),
7739 : tmp);
7740 517 : gfc_add_modify (&block2, cond_var, cond);
7741 :
7742 : /* for (i = 1; i < rank; ++i)
7743 : cond &&= dim[i].sm != (dv->dim[i - 1].sm * dv->dim[i - 1].extent) */
7744 517 : idx = gfc_create_var (gfc_array_dim_rank_type, "idx");
7745 517 : stmtblock_t loop_body;
7746 517 : gfc_init_block (&loop_body);
7747 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7748 517 : idx, build_int_cst (TREE_TYPE (idx), 1));
7749 517 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, tmp);
7750 517 : tmp = gfc_get_cfi_dim_extent (cfi, tmp);
7751 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp),
7752 : tmp2, tmp);
7753 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7754 : gfc_get_cfi_dim_sm (cfi, idx), tmp);
7755 517 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7756 : cond_var, cond);
7757 517 : gfc_add_modify (&loop_body, cond_var, cond);
7758 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7759 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7760 : gfc_finish_block (&loop_body));
7761 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7762 : build_empty_stmt (input_location));
7763 517 : gfc_add_expr_to_block (&block, tmp);
7764 :
7765 : /* Copy-in body. */
7766 517 : gfc_init_block (&block2);
7767 : /* size = dim[0].extent; for (i = 1; i < rank; ++i) size *= dim[i].extent */
7768 517 : size_var = gfc_create_var (size_type_node, "size");
7769 517 : tmp = fold_convert (size_type_node,
7770 : gfc_get_cfi_dim_extent (cfi, gfc_index_zero_node));
7771 517 : gfc_add_modify (&block2, size_var, tmp);
7772 :
7773 517 : gfc_init_block (&loop_body);
7774 517 : tmp = fold_convert (size_type_node,
7775 : gfc_get_cfi_dim_extent (cfi, idx));
7776 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7777 : size_var, fold_convert (size_type_node, tmp));
7778 517 : gfc_add_modify (&loop_body, size_var, tmp);
7779 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7780 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7781 : gfc_finish_block (&loop_body));
7782 : /* data = malloc (size * elem_len) */
7783 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7784 : size_var, gfc_get_cfi_desc_elem_len (cfi));
7785 517 : tree call = builtin_decl_explicit (BUILT_IN_MALLOC);
7786 517 : call = build_call_expr_loc (input_location, call, 1, tmp);
7787 517 : gfc_add_modify (&block2, data, fold_convert (TREE_TYPE (data), call));
7788 :
7789 : /* Copy the data:
7790 : for (idx = 0; idx < size; ++idx)
7791 : {
7792 : shift = 0;
7793 : tmpidx = idx
7794 : for (d = 0; d < rank; ++d)
7795 : {
7796 : shift += (tmpidx % extent[d]) * sm[d]
7797 : tmpidx = tmpidx / extend[d]
7798 : }
7799 : memcpy (lhs + idx*elem_len, rhs + shift, elem_len)
7800 : } .*/
7801 517 : idx = gfc_create_var (size_type_node, "arrayidx");
7802 517 : gfc_init_block (&loop_body);
7803 517 : tree shift = gfc_create_var (size_type_node, "shift");
7804 517 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7805 517 : gfc_add_modify (&loop_body, shift, build_zero_cst (TREE_TYPE (shift)));
7806 517 : gfc_add_modify (&loop_body, tmpidx, idx);
7807 517 : stmtblock_t inner_loop;
7808 517 : gfc_init_block (&inner_loop);
7809 517 : tree dim = gfc_create_var (gfc_array_dim_rank_type, "dim");
7810 : /* shift += (tmpidx % extent[d]) * sm[d] */
7811 517 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7812 : size_type_node, tmpidx,
7813 : fold_convert (size_type_node,
7814 : gfc_get_cfi_dim_extent (cfi, dim)));
7815 517 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7816 : size_type_node, tmp,
7817 : fold_convert (size_type_node,
7818 : gfc_get_cfi_dim_sm (cfi, dim)));
7819 517 : gfc_add_modify (&inner_loop, shift,
7820 : fold_build2_loc (input_location, PLUS_EXPR,
7821 : size_type_node, shift, tmp));
7822 : /* tmpidx = tmpidx / extend[d] */
7823 517 : tmp = fold_convert (size_type_node, gfc_get_cfi_dim_extent (cfi, dim));
7824 517 : gfc_add_modify (&inner_loop, tmpidx,
7825 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7826 : size_type_node, tmpidx, tmp));
7827 517 : gfc_simple_for_loop (&loop_body, dim, gfc_rank_cst[0], rank, LT_EXPR,
7828 : gfc_rank_cst[1], gfc_finish_block (&inner_loop));
7829 : /* Assign. */
7830 517 : tmp = fold_convert (pchar_type_node, gfc_get_cfi_desc_base_addr (cfi));
7831 517 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
7832 517 : tree lhs;
7833 : /* memcpy (lhs + idx*elem_len, rhs + shift, elem_len) */
7834 517 : tree elem_len;
7835 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7836 263 : elem_len = gfc_conv_descriptor_elem_len_get (gfc_desc);
7837 : else
7838 254 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
7839 517 : lhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7840 : elem_len, idx);
7841 517 : lhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR, pchar_type_node,
7842 : fold_convert (pchar_type_node, data), lhs);
7843 517 : tmp = fold_convert (pvoid_type_node, tmp);
7844 517 : lhs = fold_convert (pvoid_type_node, lhs);
7845 517 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
7846 517 : call = build_call_expr_loc (input_location, call, 3, lhs, tmp, elem_len);
7847 517 : gfc_add_expr_to_block (&loop_body, fold_convert (void_type_node, call));
7848 1034 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7849 517 : size_var, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7850 : gfc_finish_block (&loop_body));
7851 : /* if (cond) { block2 } */
7852 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7853 : build_empty_stmt (input_location));
7854 517 : gfc_add_expr_to_block (&block, tmp);
7855 : }
7856 :
7857 1583 : if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7858 : {
7859 254 : tree offset, type;
7860 254 : type = TREE_TYPE (gfc_desc);
7861 254 : gfc_trans_array_bounds (type, sym, &offset, &block);
7862 254 : if (VAR_P (GFC_TYPE_ARRAY_OFFSET (type)))
7863 144 : gfc_add_modify (&block, GFC_TYPE_ARRAY_OFFSET (type), offset);
7864 254 : goto done;
7865 : }
7866 :
7867 : /* If cfi->data != NULL. */
7868 1329 : stmtblock_t block2;
7869 1329 : gfc_init_block (&block2);
7870 :
7871 : /* if do_copy_inout: gfc->dspan = gfc->dtype.elem_len
7872 : We use gfc instead of cfi on the RHS as this might be a constant. */
7873 1329 : tmp = fold_convert (gfc_array_index_type,
7874 : gfc_conv_descriptor_elem_len_get (gfc_desc));
7875 1329 : if (!do_copy_inout)
7876 : {
7877 : /* gfc->dspan = ((cfi->dim[0].sm % gfc->elem_len)
7878 : ? cfi->dim[0].sm : gfc->elem_len). */
7879 1066 : tree cond;
7880 1066 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, gfc_rank_cst[0]);
7881 1066 : cond = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7882 : gfc_array_index_type, tmp2, tmp);
7883 1066 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7884 : cond, gfc_index_zero_node);
7885 1066 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7886 : tmp2, tmp);
7887 : }
7888 1329 : gfc_conv_descriptor_span_set (&block2, gfc_desc, tmp);
7889 :
7890 : /* Calculate offset + set lbound, ubound and stride. */
7891 1329 : gfc_conv_descriptor_offset_set (&block2, gfc_desc, gfc_index_zero_node);
7892 1329 : if (sym->as->rank > 0 && !sym->attr.pointer && !sym->attr.allocatable)
7893 1274 : for (int i = 0; i < sym->as->rank; ++i)
7894 : {
7895 718 : gfc_se se;
7896 718 : gfc_init_se (&se, NULL );
7897 718 : if (sym->as->lower[i])
7898 : {
7899 718 : gfc_conv_expr (&se, sym->as->lower[i]);
7900 718 : tmp = se.expr;
7901 : }
7902 : else
7903 0 : tmp = gfc_index_one_node;
7904 718 : gfc_add_block_to_block (&block2, &se.pre);
7905 718 : gfc_conv_descriptor_lbound_set (&block2, gfc_desc, gfc_rank_cst[i],
7906 : tmp);
7907 718 : gfc_add_block_to_block (&block2, &se.post);
7908 : }
7909 :
7910 : /* Loop: for (i = 0; i < rank; ++i). */
7911 1329 : idx = gfc_create_var (gfc_array_dim_rank_type, "idx");
7912 :
7913 : /* Loop body. */
7914 1329 : stmtblock_t loop_body;
7915 1329 : gfc_init_block (&loop_body);
7916 : /* gfc->dim[i].lbound = ... */
7917 1329 : if (sym->attr.pointer || sym->attr.allocatable)
7918 : {
7919 276 : tmp = gfc_get_cfi_dim_lbound (cfi, idx);
7920 276 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx, tmp);
7921 : }
7922 1053 : else if (sym->as->rank < 0)
7923 497 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx,
7924 : gfc_index_one_node);
7925 :
7926 : /* gfc->dim[i].ubound = gfc->dim[i].lbound + cfi->dim[i].extent - 1. */
7927 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7928 : gfc_conv_descriptor_lbound_get (gfc_desc, idx),
7929 : gfc_index_one_node);
7930 1329 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type,
7931 : gfc_get_cfi_dim_extent (cfi, idx), tmp);
7932 1329 : gfc_conv_descriptor_ubound_set (&loop_body, gfc_desc, idx, tmp);
7933 :
7934 1329 : if (do_copy_inout)
7935 : {
7936 : /* gfc->dim[i].stride
7937 : = idx == 0 ? 1 : gfc->dim[i-1].stride * cfi->dim[i-1].extent */
7938 263 : tree cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7939 263 : idx, build_zero_cst (TREE_TYPE (idx)));
7940 263 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7941 263 : idx, build_int_cst (TREE_TYPE (idx), 1));
7942 263 : tree tmp2 = gfc_get_cfi_dim_extent (cfi, tmp);
7943 263 : tmp = gfc_conv_descriptor_stride_get (gfc_desc, tmp);
7944 263 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp2),
7945 : tmp2, tmp);
7946 263 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7947 : gfc_index_one_node, tmp);
7948 : }
7949 : else
7950 : {
7951 : /* gfc->dim[i].stride = cfi->dim[i].sm / cfi>elem_len */
7952 1066 : tmp = gfc_get_cfi_dim_sm (cfi, idx);
7953 1066 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7954 : gfc_array_index_type, tmp,
7955 : fold_convert (gfc_array_index_type,
7956 : gfc_get_cfi_desc_elem_len (cfi)));
7957 : }
7958 1329 : gfc_conv_descriptor_stride_set (&loop_body, gfc_desc, idx, tmp);
7959 : /* gfc->offset -= gfc->dim[i].stride * gfc->dim[i].lbound. */
7960 1329 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
7961 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
7962 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
7963 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7964 : gfc_conv_descriptor_offset_get (gfc_desc), tmp);
7965 1329 : gfc_conv_descriptor_offset_set (&loop_body, gfc_desc, tmp);
7966 :
7967 : /* Generate loop. */
7968 2658 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7969 1329 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7970 : gfc_finish_block (&loop_body));
7971 1329 : if (sym->attr.allocatable || sym->attr.pointer)
7972 : {
7973 276 : tmp = gfc_get_cfi_desc_base_addr (cfi),
7974 276 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7975 : tmp, null_pointer_node);
7976 276 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
7977 : build_empty_stmt (input_location));
7978 276 : gfc_add_expr_to_block (&block, tmp);
7979 : }
7980 : else
7981 1053 : gfc_add_block_to_block (&block, &block2);
7982 :
7983 1820 : done:
7984 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
7985 1820 : if (sym->attr.optional)
7986 : {
7987 317 : tree present = fold_build2_loc (input_location, NE_EXPR,
7988 : boolean_type_node, cfi_desc,
7989 : null_pointer_node);
7990 317 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7991 : sym->backend_decl,
7992 317 : fold_convert (TREE_TYPE (sym->backend_decl),
7993 : null_pointer_node));
7994 317 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block), tmp);
7995 317 : gfc_add_expr_to_block (init, tmp);
7996 : }
7997 : else
7998 1503 : gfc_add_block_to_block (init, &block);
7999 :
8000 1820 : if (!sym->attr.referenced)
8001 985 : return;
8002 :
8003 : /* If pointer not changed, nothing to be done (except copy out) */
8004 1747 : if (!do_copy_inout && ((!sym->attr.pointer && !sym->attr.allocatable)
8005 381 : || sym->attr.intent == INTENT_IN))
8006 : return;
8007 :
8008 835 : gfc_init_block (&block);
8009 :
8010 : /* For bind(C), Fortran does not permit mixing 'pointer' with 'contiguous' (or
8011 : len=*). Thus, when copy out is needed, the bounds of the descriptor remain
8012 : unchanged. */
8013 835 : if (do_copy_inout)
8014 : {
8015 517 : tree data, call;
8016 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
8017 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
8018 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
8019 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
8020 : else
8021 : data = gfc_desc;
8022 517 : gfc_init_block (&block2);
8023 517 : if (sym->attr.intent != INTENT_IN)
8024 : {
8025 : /* First, create the inner copy-out loop.
8026 : for (idx = 0; idx < size; ++idx)
8027 : {
8028 : shift = 0;
8029 : tmpidx = idx
8030 : for (d = 0; d < rank; ++d)
8031 : {
8032 : shift += (tmpidx % extent[d]) * sm[d]
8033 : tmpidx = tmpidx / extend[d]
8034 : }
8035 : memcpy (lhs + shift, rhs + idx*elem_len, elem_len)
8036 : } .*/
8037 292 : stmtblock_t loop_body;
8038 292 : idx = gfc_create_var (size_type_node, "arrayidx");
8039 292 : gfc_init_block (&loop_body);
8040 292 : tree shift = gfc_create_var (size_type_node, "shift");
8041 292 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
8042 292 : gfc_add_modify (&loop_body, shift,
8043 292 : build_zero_cst (TREE_TYPE (shift)));
8044 292 : gfc_add_modify (&loop_body, tmpidx, idx);
8045 292 : stmtblock_t inner_loop;
8046 292 : gfc_init_block (&inner_loop);
8047 292 : tree dim = gfc_create_var (gfc_array_dim_rank_type, "dim");
8048 : /* shift += (tmpidx % extent[d]) * sm[d] */
8049 292 : tmp = fold_convert (size_type_node,
8050 : gfc_get_cfi_dim_extent (cfi, dim));
8051 292 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
8052 : size_type_node, tmpidx, tmp);
8053 292 : tmp = fold_build2_loc (input_location, MULT_EXPR,
8054 : size_type_node, tmp,
8055 : fold_convert (size_type_node,
8056 : gfc_get_cfi_dim_sm (cfi, dim)));
8057 292 : gfc_add_modify (&inner_loop, shift,
8058 : fold_build2_loc (input_location, PLUS_EXPR,
8059 : size_type_node, shift, tmp));
8060 : /* tmpidx = tmpidx / extend[d] */
8061 292 : tmp = fold_convert (size_type_node,
8062 : gfc_get_cfi_dim_extent (cfi, dim));
8063 292 : gfc_add_modify (&inner_loop, tmpidx,
8064 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
8065 : size_type_node, tmpidx, tmp));
8066 292 : gfc_simple_for_loop (&loop_body, dim, gfc_rank_cst[0], rank, LT_EXPR,
8067 : gfc_rank_cst[1], gfc_finish_block (&inner_loop));
8068 : /* Assign. */
8069 292 : tree rhs;
8070 292 : tmp = fold_convert (pchar_type_node,
8071 : gfc_get_cfi_desc_base_addr (cfi));
8072 292 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
8073 : /* memcpy (lhs + shift, rhs + idx*elem_len, elem_len) */
8074 292 : tree elem_len;
8075 292 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
8076 153 : elem_len = gfc_conv_descriptor_elem_len_get (gfc_desc);
8077 : else
8078 139 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
8079 292 : rhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
8080 : elem_len, idx);
8081 292 : rhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR,
8082 : pchar_type_node,
8083 : fold_convert (pchar_type_node, data), rhs);
8084 292 : tmp = fold_convert (pvoid_type_node, tmp);
8085 292 : rhs = fold_convert (pvoid_type_node, rhs);
8086 292 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
8087 292 : call = build_call_expr_loc (input_location, call, 3, tmp, rhs,
8088 : elem_len);
8089 292 : gfc_add_expr_to_block (&loop_body,
8090 : fold_convert (void_type_node, call));
8091 584 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
8092 : size_var, LT_EXPR,
8093 292 : build_int_cst (TREE_TYPE (idx), 1),
8094 : gfc_finish_block (&loop_body));
8095 : }
8096 517 : call = builtin_decl_explicit (BUILT_IN_FREE);
8097 517 : call = build_call_expr_loc (input_location, call, 1, data);
8098 517 : gfc_add_expr_to_block (&block2, call);
8099 :
8100 : /* if (cfi->base_addr != gfc->data) { copy out; free(var) }; return */
8101 517 : tree tmp2 = gfc_get_cfi_desc_base_addr (cfi);
8102 517 : tmp2 = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
8103 517 : tmp2, fold_convert (TREE_TYPE (tmp2), data));
8104 517 : tmp = build3_v (COND_EXPR, tmp2, gfc_finish_block (&block2),
8105 : build_empty_stmt (input_location));
8106 517 : gfc_add_expr_to_block (&block, tmp);
8107 517 : goto done_finally;
8108 : }
8109 :
8110 : /* Update pointer + array data data on exit. */
8111 318 : tmp = gfc_get_cfi_desc_base_addr (cfi);
8112 318 : tmp2 = (!sym->attr.dimension
8113 318 : ? gfc_desc : gfc_conv_descriptor_data_get (gfc_desc));
8114 318 : gfc_add_modify (&block, tmp, fold_convert (TREE_TYPE (tmp), tmp2));
8115 :
8116 : /* Set string length for len=:, only. */
8117 318 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
8118 : {
8119 60 : tmp2 = gfc_get_cfi_desc_elem_len (cfi);
8120 60 : tmp = fold_convert (TREE_TYPE (tmp2), sym->ts.u.cl->backend_decl);
8121 60 : if (sym->ts.kind != 1)
8122 48 : tmp = fold_build2_loc (input_location, MULT_EXPR,
8123 24 : TREE_TYPE (tmp2), tmp,
8124 24 : build_int_cst (TREE_TYPE (tmp2), sym->ts.kind));
8125 60 : gfc_add_modify (&block, tmp2, tmp);
8126 : }
8127 :
8128 318 : if (!sym->attr.dimension)
8129 102 : goto done_finally;
8130 :
8131 216 : gfc_init_block (&block2);
8132 :
8133 : /* Loop: for (i = 0; i < rank; ++i). */
8134 216 : idx = gfc_create_var (gfc_array_dim_rank_type, "idx");
8135 :
8136 : /* Loop body. */
8137 216 : gfc_init_block (&loop_body);
8138 : /* cfi->dim[i].lower_bound = gfc->dim[i].lbound */
8139 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_lbound (cfi, idx),
8140 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
8141 : /* cfi->dim[i].extent = gfc->dim[i].ubound - gfc->dim[i].lbound + 1. */
8142 216 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
8143 : gfc_conv_descriptor_ubound_get (gfc_desc, idx),
8144 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
8145 216 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type, tmp,
8146 : gfc_index_one_node);
8147 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_extent (cfi, idx), tmp);
8148 : /* d->dim[n].sm = gfc->dim[i].stride * gfc->span); */
8149 216 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
8150 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
8151 : gfc_conv_descriptor_span_get (gfc_desc));
8152 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_sm (cfi, idx), tmp);
8153 :
8154 : /* Generate loop. */
8155 216 : gfc_simple_for_loop (&block2, idx, gfc_rank_cst[0], rank, LT_EXPR,
8156 : gfc_rank_cst[1], gfc_finish_block (&loop_body));
8157 : /* if (gfc->data != NULL) { block2 }. */
8158 216 : tmp = gfc_get_cfi_desc_base_addr (cfi),
8159 216 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
8160 : tmp, null_pointer_node);
8161 216 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
8162 : build_empty_stmt (input_location));
8163 216 : gfc_add_expr_to_block (&block, tmp);
8164 :
8165 835 : done_finally:
8166 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
8167 835 : if (sym->attr.optional)
8168 : {
8169 180 : tree present = fold_build2_loc (input_location, NE_EXPR,
8170 : boolean_type_node, cfi_desc,
8171 : null_pointer_node);
8172 180 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block),
8173 : build_empty_stmt (input_location));
8174 180 : gfc_add_expr_to_block (finally, tmp);
8175 : }
8176 : else
8177 655 : gfc_add_block_to_block (finally, &block);
8178 : }
8179 :
8180 :
8181 : static void
8182 235 : emit_not_set_warning (gfc_symbol *sym)
8183 : {
8184 235 : if (warn_return_type > 0 && sym == sym->result)
8185 17 : gfc_warning (OPT_Wreturn_type,
8186 : "Return value of function %qs at %L not set",
8187 : sym->name, &sym->declared_at);
8188 235 : if (warn_return_type > 0)
8189 22 : suppress_warning (sym->backend_decl);
8190 235 : }
8191 :
8192 :
8193 : /* Generate code for a function. */
8194 :
8195 : void
8196 88602 : gfc_generate_function_code (gfc_namespace * ns)
8197 : {
8198 88602 : tree fndecl;
8199 88602 : tree old_context;
8200 88602 : tree decl;
8201 88602 : tree tmp;
8202 88602 : tree fpstate = NULL_TREE;
8203 88602 : stmtblock_t init, cleanup, outer_block;
8204 88602 : stmtblock_t body;
8205 88602 : gfc_wrapped_block try_block;
8206 88602 : tree recurcheckvar = NULL_TREE;
8207 88602 : gfc_symbol *sym;
8208 88602 : gfc_symbol *previous_procedure_symbol;
8209 88602 : int rank, ieee;
8210 88602 : bool is_recursive;
8211 :
8212 88602 : sym = ns->proc_name;
8213 88602 : previous_procedure_symbol = current_procedure_symbol;
8214 88602 : current_procedure_symbol = sym;
8215 :
8216 : /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get
8217 : lost or worse. */
8218 88602 : sym->tlink = sym;
8219 :
8220 : /* Create the declaration for functions with global scope. */
8221 88602 : if (!sym->backend_decl)
8222 36523 : gfc_create_function_decl (ns, false);
8223 :
8224 88602 : fndecl = sym->backend_decl;
8225 88602 : old_context = current_function_decl;
8226 :
8227 88602 : if (old_context)
8228 : {
8229 24021 : push_function_context ();
8230 24021 : saved_parent_function_decls = saved_function_decls;
8231 24021 : saved_function_decls = NULL_TREE;
8232 : }
8233 :
8234 88602 : trans_function_start (sym);
8235 88602 : gfc_current_locus = sym->declared_at;
8236 :
8237 88602 : gfc_init_block (&init);
8238 88602 : gfc_init_block (&cleanup);
8239 88602 : gfc_init_block (&outer_block);
8240 :
8241 88602 : if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER)
8242 : {
8243 : /* Copy length backend_decls to all entry point result
8244 : symbols. */
8245 74 : gfc_entry_list *el;
8246 74 : tree backend_decl;
8247 :
8248 74 : gfc_conv_const_charlen (ns->proc_name->ts.u.cl);
8249 74 : backend_decl = ns->proc_name->result->ts.u.cl->backend_decl;
8250 258 : for (el = ns->entries; el; el = el->next)
8251 184 : el->sym->result->ts.u.cl->backend_decl = backend_decl;
8252 : }
8253 :
8254 : /* Translate COMMON blocks. */
8255 88602 : gfc_trans_common (ns);
8256 :
8257 : /* Null the parent fake result declaration if this namespace is
8258 : a module function or an external procedures. */
8259 88602 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8260 61319 : || ns->parent == NULL)
8261 64581 : parent_fake_result_decl = NULL_TREE;
8262 :
8263 : /* For BIND(C):
8264 : - deallocate intent-out allocatable dummy arguments.
8265 : - Create GFC variable which will later be populated by convert_CFI_desc */
8266 88602 : if (sym->attr.is_bind_c)
8267 1903 : for (gfc_formal_arglist *formal = gfc_sym_get_dummy_args (sym);
8268 5923 : formal; formal = formal->next)
8269 : {
8270 4020 : gfc_symbol *fsym = formal->sym;
8271 4020 : if (!is_CFI_desc (fsym, NULL))
8272 2200 : continue;
8273 1820 : if (!fsym->attr.referenced)
8274 : {
8275 73 : gfc_conv_cfi_to_gfc (&init, &cleanup, fsym->backend_decl,
8276 : NULL_TREE, fsym);
8277 73 : continue;
8278 : }
8279 : /* Let's now create a local GFI descriptor. Afterwards:
8280 : desc is the local descriptor,
8281 : desc_p is a pointer to it
8282 : and stored in sym->backend_decl
8283 : GFC_DECL_SAVED_DESCRIPTOR (desc_p) contains the CFI descriptor
8284 : -> PARM_DECL and before sym->backend_decl.
8285 : For scalars, decl == decl_p is a pointer variable. */
8286 1747 : tree desc_p, desc;
8287 1747 : location_t loc = gfc_get_location (&sym->declared_at);
8288 1747 : if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->length)
8289 647 : fsym->ts.u.cl->backend_decl = gfc_create_var (gfc_array_index_type,
8290 : fsym->name);
8291 1100 : else if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->backend_decl)
8292 : {
8293 157 : gfc_se se;
8294 157 : gfc_init_se (&se, NULL );
8295 157 : gfc_conv_expr (&se, fsym->ts.u.cl->length);
8296 157 : gfc_add_block_to_block (&init, &se.pre);
8297 157 : fsym->ts.u.cl->backend_decl = se.expr;
8298 157 : gcc_assert(se.post.head == NULL_TREE);
8299 : }
8300 : /* Nullify, otherwise gfc_sym_type will return the CFI type. */
8301 1747 : tree tmp = fsym->backend_decl;
8302 1747 : fsym->backend_decl = NULL;
8303 1747 : tree type = gfc_sym_type (fsym);
8304 1747 : gcc_assert (POINTER_TYPE_P (type));
8305 1747 : if (POINTER_TYPE_P (TREE_TYPE (type)))
8306 : /* For instance, allocatable scalars. */
8307 105 : type = TREE_TYPE (type);
8308 1747 : if (TREE_CODE (type) == REFERENCE_TYPE)
8309 1179 : type = build_pointer_type (TREE_TYPE (type));
8310 1747 : desc_p = build_decl (loc, VAR_DECL, get_identifier (fsym->name), type);
8311 1747 : if (!fsym->attr.dimension)
8312 : desc = desc_p;
8313 1583 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (TREE_TYPE (desc_p))))
8314 : {
8315 : /* Character(len=*) explicit-size/assumed-size array. */
8316 254 : desc = desc_p;
8317 254 : gfc_build_qualified_array (desc, fsym);
8318 : }
8319 : else
8320 : {
8321 1329 : tree size = size_in_bytes (TREE_TYPE (TREE_TYPE (desc_p)));
8322 1329 : tree call = builtin_decl_explicit (BUILT_IN_ALLOCA);
8323 1329 : call = build_call_expr_loc (input_location, call, 1, size);
8324 1329 : gfc_add_modify (&outer_block, desc_p,
8325 1329 : fold_convert (TREE_TYPE(desc_p), call));
8326 1329 : desc = build_fold_indirect_ref_loc (input_location, desc_p);
8327 : }
8328 1747 : pushdecl (desc_p);
8329 1747 : if (fsym->attr.optional)
8330 : {
8331 311 : gfc_allocate_lang_decl (desc_p);
8332 311 : GFC_DECL_OPTIONAL_ARGUMENT (desc_p) = 1;
8333 : }
8334 1747 : fsym->backend_decl = desc_p;
8335 1747 : gfc_conv_cfi_to_gfc (&init, &cleanup, tmp, desc, fsym);
8336 : }
8337 :
8338 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
8339 : especially as some late diagnostic is only done on tree level. */
8340 88602 : if (flag_openmp)
8341 8856 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
8342 :
8343 88602 : gfc_generate_contained_functions (ns);
8344 :
8345 88602 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8346 88602 : generate_local_vars (ns);
8347 :
8348 88602 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8349 435 : generate_coarray_init (ns);
8350 :
8351 : /* Keep the parent fake result declaration in module functions
8352 : or external procedures. */
8353 88602 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8354 61319 : || ns->parent == NULL)
8355 64581 : current_fake_result_decl = parent_fake_result_decl;
8356 : else
8357 24021 : current_fake_result_decl = NULL_TREE;
8358 :
8359 177204 : is_recursive = sym->attr.recursive
8360 88602 : || (sym->attr.entry_master
8361 667 : && sym->ns->entries->sym->attr.recursive);
8362 88602 : if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION)
8363 1009 : && !is_recursive && !flag_recursive && !sym->attr.artificial)
8364 : {
8365 840 : char * msg;
8366 :
8367 840 : msg = xasprintf ("Recursive call to nonrecursive procedure '%s'",
8368 : sym->name);
8369 840 : recurcheckvar = gfc_create_var (logical_type_node, "is_recursive");
8370 840 : TREE_STATIC (recurcheckvar) = 1;
8371 840 : DECL_INITIAL (recurcheckvar) = logical_false_node;
8372 840 : gfc_add_expr_to_block (&init, recurcheckvar);
8373 840 : gfc_trans_runtime_check (true, false, recurcheckvar, &init,
8374 : &sym->declared_at, msg);
8375 840 : gfc_add_modify (&init, recurcheckvar, logical_true_node);
8376 840 : free (msg);
8377 : }
8378 :
8379 : /* Check if an IEEE module is used in the procedure. If so, save
8380 : the floating point state. */
8381 88602 : ieee = is_ieee_module_used (ns);
8382 88602 : if (ieee)
8383 441 : fpstate = gfc_save_fp_state (&init);
8384 :
8385 : /* Now generate the code for the body of this function. */
8386 88602 : gfc_init_block (&body);
8387 :
8388 88602 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8389 88602 : && sym->attr.subroutine)
8390 : {
8391 42 : tree alternate_return;
8392 42 : alternate_return = gfc_get_fake_result_decl (sym, 0);
8393 42 : gfc_add_modify (&body, alternate_return, integer_zero_node);
8394 : }
8395 :
8396 88602 : if (ns->entries)
8397 : {
8398 : /* Jump to the correct entry point. */
8399 667 : tmp = gfc_trans_entry_master_switch (ns->entries);
8400 667 : gfc_add_expr_to_block (&body, tmp);
8401 : }
8402 :
8403 : /* If bounds-checking is enabled, generate code to check passed in actual
8404 : arguments against the expected dummy argument attributes (e.g. string
8405 : lengths). */
8406 88602 : if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c)
8407 2907 : add_argument_checking (&body, sym);
8408 :
8409 88602 : finish_oacc_declare (ns, sym, false);
8410 :
8411 88602 : if (gfc_current_ns != ns)
8412 : {
8413 51304 : gfc_namespace *old_current_ns = gfc_current_ns;
8414 51304 : gfc_current_ns = ns;
8415 51304 : tmp = gfc_trans_code (ns->code);
8416 51304 : gfc_current_ns = old_current_ns;
8417 : }
8418 : else
8419 37298 : tmp = gfc_trans_code (ns->code);
8420 :
8421 88602 : gfc_add_expr_to_block (&body, tmp);
8422 :
8423 : /* This permits the return value to be correctly initialized, even when the
8424 : function result was not referenced. */
8425 88602 : if (sym->abr_modproc_decl
8426 260 : && IS_PDT (sym)
8427 7 : && !sym->attr.allocatable
8428 7 : && sym->result == sym
8429 88609 : && get_proc_result (sym) == NULL_TREE)
8430 : {
8431 1 : gfc_get_fake_result_decl (sym->result, 0);
8432 : /* TODO: move to the appropriate place in resolve.cc. */
8433 1 : emit_not_set_warning (sym);
8434 : }
8435 :
8436 88602 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8437 88602 : || (sym->result && sym->result != sym
8438 1286 : && sym->result->ts.type == BT_DERIVED
8439 173 : && sym->result->ts.u.derived->attr.alloc_comp))
8440 : {
8441 12736 : bool artificial_result_decl = false;
8442 12736 : tree result = get_proc_result (sym);
8443 12736 : gfc_symbol *rsym = sym == sym->result ? sym : sym->result;
8444 :
8445 : /* Make sure that a function returning an object with
8446 : alloc/pointer_components always has a result, where at least
8447 : the allocatable/pointer components are set to zero. */
8448 12736 : if (result == NULL_TREE && sym->attr.function
8449 234 : && ((sym->result->ts.type == BT_DERIVED
8450 28 : && (sym->attr.allocatable
8451 22 : || sym->attr.pointer
8452 20 : || sym->result->ts.u.derived->attr.alloc_comp
8453 20 : || sym->result->ts.u.derived->attr.pointer_comp))
8454 226 : || (sym->result->ts.type == BT_CLASS
8455 38 : && (CLASS_DATA (sym->result)->attr.allocatable
8456 11 : || CLASS_DATA (sym->result)->attr.class_pointer
8457 0 : || CLASS_DATA (sym->result)->attr.alloc_comp
8458 0 : || CLASS_DATA (sym->result)->attr.pointer_comp))))
8459 : {
8460 46 : artificial_result_decl = true;
8461 46 : result = gfc_get_fake_result_decl (sym->result, 0);
8462 : }
8463 :
8464 12736 : if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer)
8465 : {
8466 12118 : if (sym->attr.allocatable && sym->attr.dimension == 0
8467 101 : && sym->result == sym)
8468 75 : gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result),
8469 : null_pointer_node));
8470 12043 : else if (sym->ts.type == BT_CLASS
8471 753 : && CLASS_DATA (sym)->attr.allocatable
8472 515 : && CLASS_DATA (sym)->attr.dimension == 0
8473 328 : && sym->result == sym)
8474 : {
8475 135 : tmp = gfc_class_data_get (result);
8476 135 : gfc_add_modify (&init, tmp,
8477 135 : fold_convert (TREE_TYPE (tmp),
8478 : null_pointer_node));
8479 135 : gfc_reset_vptr (&init, nullptr, result,
8480 135 : sym->result->ts.u.derived);
8481 : }
8482 11908 : else if (sym->ts.type == BT_DERIVED
8483 1324 : && !sym->attr.allocatable)
8484 : {
8485 1299 : gfc_expr *init_exp;
8486 : /* Arrays are not initialized using the default initializer of
8487 : their elements. Therefore only check if a default
8488 : initializer is available when the result is scalar. */
8489 1299 : init_exp = rsym->as ? NULL
8490 1266 : : gfc_generate_initializer (&rsym->ts, true);
8491 1266 : if (init_exp)
8492 : {
8493 699 : tmp = gfc_trans_structure_assign (result, init_exp, 0);
8494 699 : gfc_free_expr (init_exp);
8495 699 : gfc_add_expr_to_block (&init, tmp);
8496 : }
8497 :
8498 1299 : if (rsym->ts.u.derived->attr.alloc_comp)
8499 : {
8500 487 : rank = rsym->as ? rsym->as->rank : 0;
8501 487 : tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result,
8502 : rank);
8503 487 : gfc_prepend_expr_to_block (&body, tmp);
8504 : }
8505 : }
8506 : }
8507 :
8508 12736 : if (result == NULL_TREE || artificial_result_decl)
8509 : /* TODO: move to the appropriate place in resolve.cc. */
8510 234 : emit_not_set_warning (sym);
8511 :
8512 234 : if (result != NULL_TREE)
8513 12548 : gfc_add_expr_to_block (&body, gfc_generate_return ());
8514 : }
8515 :
8516 : /* Reset recursion-check variable. */
8517 88602 : if (recurcheckvar != NULL_TREE)
8518 : {
8519 840 : gfc_add_modify (&cleanup, recurcheckvar, logical_false_node);
8520 840 : recurcheckvar = NULL;
8521 : }
8522 :
8523 : /* If IEEE modules are loaded, restore the floating-point state. */
8524 88602 : if (ieee)
8525 441 : gfc_restore_fp_state (&cleanup, fpstate);
8526 :
8527 : /* Finish the function body and add init and cleanup code. */
8528 88602 : tmp = gfc_finish_block (&body);
8529 : /* Add code to create and cleanup arrays. */
8530 88602 : gfc_start_wrapped_block (&try_block, tmp);
8531 88602 : gfc_trans_deferred_vars (sym, &try_block);
8532 88602 : gfc_add_init_cleanup (&try_block, gfc_finish_block (&init),
8533 : gfc_finish_block (&cleanup));
8534 :
8535 : /* Add all the decls we created during processing. */
8536 88602 : decl = nreverse (saved_function_decls);
8537 485619 : while (decl)
8538 : {
8539 308415 : tree next;
8540 :
8541 308415 : next = DECL_CHAIN (decl);
8542 308415 : DECL_CHAIN (decl) = NULL_TREE;
8543 308415 : pushdecl (decl);
8544 308415 : decl = next;
8545 : }
8546 88602 : saved_function_decls = NULL_TREE;
8547 :
8548 88602 : gfc_add_expr_to_block (&outer_block, gfc_finish_wrapped_block (&try_block));
8549 88602 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&outer_block);
8550 88602 : decl = getdecls ();
8551 :
8552 : /* Finish off this function and send it for code generation. */
8553 88602 : poplevel (1, 1);
8554 88602 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8555 :
8556 177204 : DECL_SAVED_TREE (fndecl)
8557 177204 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
8558 177204 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
8559 :
8560 : /* Output the GENERIC tree. */
8561 88602 : dump_function (TDI_original, fndecl);
8562 :
8563 : /* Store the end of the function, so that we get good line number
8564 : info for the epilogue. */
8565 88602 : cfun->function_end_locus = input_location;
8566 :
8567 : /* We're leaving the context of this function, so zap cfun.
8568 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
8569 : tree_rest_of_compilation. */
8570 88602 : set_cfun (NULL);
8571 :
8572 88602 : if (old_context)
8573 : {
8574 24021 : pop_function_context ();
8575 24021 : saved_function_decls = saved_parent_function_decls;
8576 : }
8577 88602 : current_function_decl = old_context;
8578 :
8579 88602 : if (decl_function_context (fndecl))
8580 : {
8581 : /* Register this function with cgraph just far enough to get it
8582 : added to our parent's nested function list.
8583 : If there are static coarrays in this function, the nested _caf_init
8584 : function has already called cgraph_create_node, which also created
8585 : the cgraph node for this function. */
8586 24021 : if (!has_coarray_vars_or_accessors || flag_coarray != GFC_FCOARRAY_LIB)
8587 23801 : (void) cgraph_node::get_create (fndecl);
8588 : }
8589 : else
8590 64581 : cgraph_node::finalize_function (fndecl, true);
8591 :
8592 88602 : gfc_trans_use_stmts (ns);
8593 88602 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
8594 :
8595 88602 : if (sym->attr.is_main_program)
8596 27106 : create_main_function (fndecl);
8597 :
8598 88602 : current_procedure_symbol = previous_procedure_symbol;
8599 88602 : }
8600 :
8601 :
8602 : void
8603 32526 : gfc_generate_constructors (void)
8604 : {
8605 32526 : gcc_assert (gfc_static_ctors == NULL_TREE);
8606 : #if 0
8607 : tree fnname;
8608 : tree type;
8609 : tree fndecl;
8610 : tree decl;
8611 : tree tmp;
8612 :
8613 : if (gfc_static_ctors == NULL_TREE)
8614 : return;
8615 :
8616 : fnname = get_file_function_name ("I");
8617 : type = build_function_type_list (void_type_node, NULL_TREE);
8618 :
8619 : fndecl = build_decl (input_location,
8620 : FUNCTION_DECL, fnname, type);
8621 : TREE_PUBLIC (fndecl) = 1;
8622 :
8623 : decl = build_decl (input_location,
8624 : RESULT_DECL, NULL_TREE, void_type_node);
8625 : DECL_ARTIFICIAL (decl) = 1;
8626 : DECL_IGNORED_P (decl) = 1;
8627 : DECL_CONTEXT (decl) = fndecl;
8628 : DECL_RESULT (fndecl) = decl;
8629 :
8630 : pushdecl (fndecl);
8631 :
8632 : current_function_decl = fndecl;
8633 :
8634 : rest_of_decl_compilation (fndecl, 1, 0);
8635 :
8636 : make_decl_rtl (fndecl);
8637 :
8638 : allocate_struct_function (fndecl, false);
8639 :
8640 : pushlevel ();
8641 :
8642 : for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors))
8643 : {
8644 : tmp = build_call_expr_loc (input_location,
8645 : TREE_VALUE (gfc_static_ctors), 0);
8646 : DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp);
8647 : }
8648 :
8649 : decl = getdecls ();
8650 : poplevel (1, 1);
8651 :
8652 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8653 : DECL_SAVED_TREE (fndecl)
8654 : = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl),
8655 : DECL_INITIAL (fndecl));
8656 :
8657 : free_after_parsing (cfun);
8658 : free_after_compilation (cfun);
8659 :
8660 : tree_rest_of_compilation (fndecl);
8661 :
8662 : current_function_decl = NULL_TREE;
8663 : #endif
8664 32526 : }
8665 :
8666 :
8667 : /* Helper function for checking of variables declared in a BLOCK DATA program
8668 : unit. */
8669 :
8670 : static void
8671 301 : check_block_data_decls (gfc_symbol * sym)
8672 : {
8673 301 : if (warn_unused_variable
8674 13 : && sym->attr.flavor == FL_VARIABLE
8675 7 : && !sym->attr.in_common
8676 3 : && !sym->attr.artificial)
8677 : {
8678 2 : gfc_warning (OPT_Wunused_variable,
8679 : "Symbol %qs at %L is declared in a BLOCK DATA "
8680 : "program unit but is not in a COMMON block",
8681 : sym->name, &sym->declared_at);
8682 : }
8683 301 : }
8684 :
8685 :
8686 : /* Translates a BLOCK DATA program unit. This means emitting the
8687 : commons contained therein plus their initializations. We also emit
8688 : a globally visible symbol to make sure that each BLOCK DATA program
8689 : unit remains unique. */
8690 :
8691 : void
8692 72 : gfc_generate_block_data (gfc_namespace * ns)
8693 : {
8694 72 : tree decl;
8695 72 : tree id;
8696 :
8697 : /* Tell the backend the source location of the block data. */
8698 72 : if (ns->proc_name)
8699 29 : input_location = gfc_get_location (&ns->proc_name->declared_at);
8700 : else
8701 43 : input_location = gfc_get_location (&gfc_current_locus);
8702 :
8703 : /* Process the DATA statements. */
8704 72 : gfc_trans_common (ns);
8705 :
8706 : /* Check for variables declared in BLOCK DATA but not used in COMMON. */
8707 72 : gfc_traverse_ns (ns, check_block_data_decls);
8708 :
8709 : /* Create a global symbol with the mane of the block data. This is to
8710 : generate linker errors if the same name is used twice. It is never
8711 : really used. */
8712 72 : if (ns->proc_name)
8713 29 : id = gfc_sym_mangled_function_id (ns->proc_name);
8714 : else
8715 43 : id = get_identifier ("__BLOCK_DATA__");
8716 :
8717 72 : decl = build_decl (input_location,
8718 : VAR_DECL, id, gfc_array_index_type);
8719 72 : TREE_PUBLIC (decl) = 1;
8720 72 : TREE_STATIC (decl) = 1;
8721 72 : DECL_IGNORED_P (decl) = 1;
8722 :
8723 72 : pushdecl (decl);
8724 72 : rest_of_decl_compilation (decl, 1, 0);
8725 72 : }
8726 :
8727 : void
8728 14874 : gfc_start_saved_local_decls ()
8729 : {
8730 14874 : gcc_checking_assert (current_function_decl != NULL_TREE);
8731 14874 : saved_local_decls = NULL_TREE;
8732 14874 : }
8733 :
8734 : void
8735 14874 : gfc_stop_saved_local_decls ()
8736 : {
8737 14874 : tree decl = nreverse (saved_local_decls);
8738 43520 : while (decl)
8739 : {
8740 13772 : tree next;
8741 :
8742 13772 : next = DECL_CHAIN (decl);
8743 13772 : DECL_CHAIN (decl) = NULL_TREE;
8744 13772 : pushdecl (decl);
8745 13772 : decl = next;
8746 : }
8747 14874 : saved_local_decls = NULL_TREE;
8748 14874 : }
8749 :
8750 : /* Process the local variables of a BLOCK construct. */
8751 :
8752 : void
8753 14826 : gfc_process_block_locals (gfc_namespace* ns)
8754 : {
8755 14826 : gfc_start_saved_local_decls ();
8756 14826 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8757 :
8758 14826 : generate_local_vars (ns);
8759 :
8760 14826 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8761 41 : generate_coarray_init (ns);
8762 14826 : gfc_stop_saved_local_decls ();
8763 14826 : }
8764 :
8765 :
8766 : #include "gt-fortran-trans-decl.h"
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