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 "gomp-constants.h"
48 : #include "gimplify.h"
49 : #include "context.h"
50 : #include "omp-general.h"
51 : #include "omp-offload.h"
52 : #include "attr-fnspec.h"
53 : #include "tree-iterator.h"
54 : #include "dependency.h"
55 :
56 : #define MAX_LABEL_VALUE 99999
57 :
58 :
59 : /* Holds the result of the function if no result variable specified. */
60 :
61 : static GTY(()) tree current_fake_result_decl;
62 : static GTY(()) tree parent_fake_result_decl;
63 :
64 :
65 : /* Holds the variable DECLs for the current function. */
66 :
67 : static GTY(()) tree saved_function_decls;
68 : static GTY(()) tree saved_parent_function_decls;
69 :
70 : /* Holds the variable DECLs that are locals. */
71 :
72 : static GTY(()) tree saved_local_decls;
73 :
74 : /* The namespace of the module we're currently generating. Only used while
75 : outputting decls for module variables. Do not rely on this being set. */
76 :
77 : static gfc_namespace *module_namespace;
78 :
79 : /* The currently processed procedure symbol. */
80 : static gfc_symbol* current_procedure_symbol = NULL;
81 :
82 : /* The currently processed module. */
83 : static struct module_htab_entry *cur_module;
84 :
85 : /* With -fcoarray=lib: For generating the registering call
86 : of static coarrays. */
87 : static bool has_coarray_vars_or_accessors;
88 : static stmtblock_t caf_init_block;
89 :
90 :
91 : /* List of static constructor functions. */
92 :
93 : tree gfc_static_ctors;
94 :
95 :
96 : /* Whether we've seen a symbol from an IEEE module in the namespace. */
97 : static int seen_ieee_symbol;
98 :
99 : /* Function declarations for builtin library functions. */
100 :
101 : tree gfor_fndecl_pause_numeric;
102 : tree gfor_fndecl_pause_string;
103 : tree gfor_fndecl_stop_numeric;
104 : tree gfor_fndecl_stop_string;
105 : tree gfor_fndecl_error_stop_numeric;
106 : tree gfor_fndecl_error_stop_string;
107 : tree gfor_fndecl_runtime_error;
108 : tree gfor_fndecl_runtime_error_at;
109 : tree gfor_fndecl_runtime_warning_at;
110 : tree gfor_fndecl_os_error_at;
111 : tree gfor_fndecl_generate_error;
112 : tree gfor_fndecl_set_args;
113 : tree gfor_fndecl_set_fpe;
114 : tree gfor_fndecl_set_options;
115 : tree gfor_fndecl_set_convert;
116 : tree gfor_fndecl_set_record_marker;
117 : tree gfor_fndecl_set_max_subrecord_length;
118 : tree gfor_fndecl_ctime;
119 : tree gfor_fndecl_fdate;
120 : tree gfor_fndecl_ttynam;
121 : tree gfor_fndecl_in_pack;
122 : tree gfor_fndecl_in_unpack;
123 : tree gfor_fndecl_in_pack_class;
124 : tree gfor_fndecl_in_unpack_class;
125 : tree gfor_fndecl_associated;
126 : tree gfor_fndecl_system_clock4;
127 : tree gfor_fndecl_system_clock8;
128 : tree gfor_fndecl_ieee_procedure_entry;
129 : tree gfor_fndecl_ieee_procedure_exit;
130 :
131 : /* Coarray run-time library function decls. */
132 : tree gfor_fndecl_caf_init;
133 : tree gfor_fndecl_caf_finalize;
134 : tree gfor_fndecl_caf_this_image;
135 : tree gfor_fndecl_caf_num_images;
136 : tree gfor_fndecl_caf_register;
137 : tree gfor_fndecl_caf_deregister;
138 : tree gfor_fndecl_caf_register_accessor;
139 : tree gfor_fndecl_caf_register_accessors_finish;
140 : tree gfor_fndecl_caf_get_remote_function_index;
141 : tree gfor_fndecl_caf_get_from_remote;
142 : tree gfor_fndecl_caf_send_to_remote;
143 : tree gfor_fndecl_caf_transfer_between_remotes;
144 : tree gfor_fndecl_caf_sync_all;
145 : tree gfor_fndecl_caf_sync_memory;
146 : tree gfor_fndecl_caf_sync_images;
147 : tree gfor_fndecl_caf_stop_str;
148 : tree gfor_fndecl_caf_stop_numeric;
149 : tree gfor_fndecl_caf_error_stop;
150 : tree gfor_fndecl_caf_error_stop_str;
151 : tree gfor_fndecl_caf_atomic_def;
152 : tree gfor_fndecl_caf_atomic_ref;
153 : tree gfor_fndecl_caf_atomic_cas;
154 : tree gfor_fndecl_caf_atomic_op;
155 : tree gfor_fndecl_caf_lock;
156 : tree gfor_fndecl_caf_unlock;
157 : tree gfor_fndecl_caf_event_post;
158 : tree gfor_fndecl_caf_event_wait;
159 : tree gfor_fndecl_caf_event_query;
160 : tree gfor_fndecl_caf_fail_image;
161 : tree gfor_fndecl_caf_failed_images;
162 : tree gfor_fndecl_caf_image_status;
163 : tree gfor_fndecl_caf_stopped_images;
164 : tree gfor_fndecl_caf_form_team;
165 : tree gfor_fndecl_caf_change_team;
166 : tree gfor_fndecl_caf_end_team;
167 : tree gfor_fndecl_caf_sync_team;
168 : tree gfor_fndecl_caf_get_team;
169 : tree gfor_fndecl_caf_team_number;
170 : tree gfor_fndecl_co_broadcast;
171 : tree gfor_fndecl_co_max;
172 : tree gfor_fndecl_co_min;
173 : tree gfor_fndecl_co_reduce;
174 : tree gfor_fndecl_co_sum;
175 : tree gfor_fndecl_caf_is_present_on_remote;
176 : tree gfor_fndecl_caf_random_init;
177 :
178 :
179 : /* Math functions. Many other math functions are handled in
180 : trans-intrinsic.cc. */
181 :
182 : gfc_powdecl_list gfor_fndecl_math_powi[4][3];
183 : tree gfor_fndecl_unsigned_pow_list[5][5];
184 :
185 : tree gfor_fndecl_math_ishftc4;
186 : tree gfor_fndecl_math_ishftc8;
187 : tree gfor_fndecl_math_ishftc16;
188 :
189 :
190 : /* String functions. */
191 :
192 : tree gfor_fndecl_compare_string;
193 : tree gfor_fndecl_concat_string;
194 : tree gfor_fndecl_string_len_trim;
195 : tree gfor_fndecl_string_index;
196 : tree gfor_fndecl_string_scan;
197 : tree gfor_fndecl_string_verify;
198 : tree gfor_fndecl_string_trim;
199 : tree gfor_fndecl_string_minmax;
200 : tree gfor_fndecl_string_split;
201 : tree gfor_fndecl_adjustl;
202 : tree gfor_fndecl_adjustr;
203 : tree gfor_fndecl_select_string;
204 : tree gfor_fndecl_compare_string_char4;
205 : tree gfor_fndecl_concat_string_char4;
206 : tree gfor_fndecl_string_len_trim_char4;
207 : tree gfor_fndecl_string_index_char4;
208 : tree gfor_fndecl_string_scan_char4;
209 : tree gfor_fndecl_string_verify_char4;
210 : tree gfor_fndecl_string_trim_char4;
211 : tree gfor_fndecl_string_minmax_char4;
212 : tree gfor_fndecl_string_split_char4;
213 : tree gfor_fndecl_adjustl_char4;
214 : tree gfor_fndecl_adjustr_char4;
215 : tree gfor_fndecl_select_string_char4;
216 :
217 :
218 : /* Conversion between character kinds. */
219 : tree gfor_fndecl_convert_char1_to_char4;
220 : tree gfor_fndecl_convert_char4_to_char1;
221 :
222 :
223 : /* Other misc. runtime library functions. */
224 : tree gfor_fndecl_iargc;
225 : tree gfor_fndecl_kill;
226 : tree gfor_fndecl_kill_sub;
227 : tree gfor_fndecl_is_contiguous0;
228 : tree gfor_fndecl_fstat_i4_sub;
229 : tree gfor_fndecl_fstat_i8_sub;
230 : tree gfor_fndecl_lstat_i4_sub;
231 : tree gfor_fndecl_lstat_i8_sub;
232 : tree gfor_fndecl_stat_i4_sub;
233 : tree gfor_fndecl_stat_i8_sub;
234 :
235 :
236 : /* Intrinsic functions implemented in Fortran. */
237 : tree gfor_fndecl_sc_kind;
238 : tree gfor_fndecl_si_kind;
239 : tree gfor_fndecl_sl_kind;
240 : tree gfor_fndecl_sr_kind;
241 :
242 : /* BLAS gemm functions. */
243 : tree gfor_fndecl_sgemm;
244 : tree gfor_fndecl_dgemm;
245 : tree gfor_fndecl_cgemm;
246 : tree gfor_fndecl_zgemm;
247 :
248 : /* RANDOM_INIT function. */
249 : tree gfor_fndecl_random_init; /* libgfortran, 1 image only. */
250 :
251 : /* Deep copy helper for recursive allocatable array components. */
252 : tree gfor_fndecl_cfi_deep_copy_array;
253 :
254 : static void
255 5059 : gfc_add_decl_to_parent_function (tree decl)
256 : {
257 5059 : gcc_assert (decl);
258 5059 : DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl);
259 5059 : DECL_NONLOCAL (decl) = 1;
260 5059 : DECL_CHAIN (decl) = saved_parent_function_decls;
261 5059 : saved_parent_function_decls = decl;
262 5059 : }
263 :
264 : void
265 288493 : gfc_add_decl_to_function (tree decl)
266 : {
267 288493 : gcc_assert (decl);
268 288493 : TREE_USED (decl) = 1;
269 288493 : DECL_CONTEXT (decl) = current_function_decl;
270 288493 : DECL_CHAIN (decl) = saved_function_decls;
271 288493 : saved_function_decls = decl;
272 288493 : }
273 :
274 : static void
275 13013 : add_decl_as_local (tree decl)
276 : {
277 13013 : gcc_assert (decl);
278 13013 : TREE_USED (decl) = 1;
279 13013 : DECL_CONTEXT (decl) = current_function_decl;
280 13013 : DECL_CHAIN (decl) = saved_local_decls;
281 13013 : saved_local_decls = decl;
282 13013 : }
283 :
284 :
285 : /* Build a backend label declaration. Set TREE_USED for named labels.
286 : The context of the label is always the current_function_decl. All
287 : labels are marked artificial. */
288 :
289 : tree
290 621499 : gfc_build_label_decl (tree label_id)
291 : {
292 : /* 2^32 temporaries should be enough. */
293 621499 : static unsigned int tmp_num = 1;
294 621499 : tree label_decl;
295 621499 : char *label_name;
296 :
297 621499 : if (label_id == NULL_TREE)
298 : {
299 : /* Build an internal label name. */
300 617979 : ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++);
301 617979 : label_id = get_identifier (label_name);
302 : }
303 : else
304 621499 : label_name = NULL;
305 :
306 : /* Build the LABEL_DECL node. Labels have no type. */
307 621499 : label_decl = build_decl (input_location,
308 : LABEL_DECL, label_id, void_type_node);
309 621499 : DECL_CONTEXT (label_decl) = current_function_decl;
310 621499 : SET_DECL_MODE (label_decl, VOIDmode);
311 :
312 : /* We always define the label as used, even if the original source
313 : file never references the label. We don't want all kinds of
314 : spurious warnings for old-style Fortran code with too many
315 : labels. */
316 621499 : TREE_USED (label_decl) = 1;
317 :
318 621499 : DECL_ARTIFICIAL (label_decl) = 1;
319 621499 : return label_decl;
320 : }
321 :
322 :
323 : /* Set the backend source location of a decl. */
324 :
325 : void
326 182572 : gfc_set_decl_location (tree decl, locus * loc)
327 : {
328 182572 : DECL_SOURCE_LOCATION (decl) = gfc_get_location (loc);
329 182572 : }
330 :
331 :
332 : /* Return the backend label declaration for a given label structure,
333 : or create it if it doesn't exist yet. */
334 :
335 : tree
336 5850 : gfc_get_label_decl (gfc_st_label * lp)
337 : {
338 5850 : if (lp->backend_decl)
339 : return lp->backend_decl;
340 : else
341 : {
342 3520 : char label_name[GFC_MAX_SYMBOL_LEN + 1];
343 3520 : tree label_decl;
344 :
345 : /* Validate the label declaration from the front end. */
346 3520 : gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE);
347 :
348 : /* Build a mangled name for the label. */
349 3520 : if (lp->omp_region)
350 11 : sprintf (label_name, "__label_%d_%.6d", lp->omp_region, lp->value);
351 : else
352 3509 : sprintf (label_name, "__label_%.6d", lp->value);
353 :
354 : /* Build the LABEL_DECL node. */
355 3520 : label_decl = gfc_build_label_decl (get_identifier (label_name));
356 :
357 : /* Tell the debugger where the label came from. */
358 3520 : if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */
359 3520 : gfc_set_decl_location (label_decl, &lp->where);
360 : else
361 0 : DECL_ARTIFICIAL (label_decl) = 1;
362 :
363 : /* Store the label in the label list and return the LABEL_DECL. */
364 3520 : lp->backend_decl = label_decl;
365 3520 : return label_decl;
366 : }
367 : }
368 :
369 : /* Return the name of an identifier. */
370 :
371 : static const char *
372 415682 : sym_identifier (gfc_symbol *sym)
373 : {
374 415682 : if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0)
375 : return "MAIN__";
376 : else
377 411349 : return sym->name;
378 : }
379 :
380 : /* Convert a gfc_symbol to an identifier of the same name. */
381 :
382 : static tree
383 415682 : gfc_sym_identifier (gfc_symbol * sym)
384 : {
385 415682 : return get_identifier (sym_identifier (sym));
386 : }
387 :
388 : /* Construct mangled name from symbol name. */
389 :
390 : static const char *
391 19740 : mangled_identifier (gfc_symbol *sym)
392 : {
393 19740 : gfc_symbol *proc = sym->ns->proc_name;
394 19740 : static char name[3*GFC_MAX_MANGLED_SYMBOL_LEN + 14];
395 : /* Prevent the mangling of identifiers that have an assigned
396 : binding label (mainly those that are bind(c)). */
397 :
398 19740 : if (sym->attr.is_bind_c == 1 && sym->binding_label)
399 : return sym->binding_label;
400 :
401 19615 : if (!sym->fn_result_spec
402 57 : || (sym->module && !(proc && proc->attr.flavor == FL_PROCEDURE)))
403 : {
404 19566 : if (sym->module == NULL)
405 0 : return sym_identifier (sym);
406 : else
407 19566 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
408 : }
409 : else
410 : {
411 : /* This is an entity that is actually local to a module procedure
412 : that appears in the result specification expression. Since
413 : sym->module will be a zero length string, we use ns->proc_name
414 : to provide the module name instead. */
415 49 : if (proc && proc->module)
416 48 : snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s",
417 : proc->module, proc->name, sym->name);
418 : else
419 1 : snprintf (name, sizeof name, "__%s_PROC_%s",
420 : proc->name, sym->name);
421 : }
422 :
423 : return name;
424 : }
425 :
426 : /* Get mangled identifier, adding the symbol to the global table if
427 : it is not yet already there. */
428 :
429 : static tree
430 19591 : gfc_sym_mangled_identifier (gfc_symbol * sym)
431 : {
432 19591 : tree result;
433 19591 : gfc_gsymbol *gsym;
434 19591 : const char *name;
435 :
436 19591 : name = mangled_identifier (sym);
437 19591 : result = get_identifier (name);
438 :
439 19591 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
440 19591 : if (gsym == NULL)
441 : {
442 19415 : gsym = gfc_get_gsymbol (name, false);
443 19415 : gsym->ns = sym->ns;
444 19415 : gsym->sym_name = sym->name;
445 : }
446 :
447 19591 : return result;
448 : }
449 :
450 : /* Construct mangled function name from symbol name. */
451 :
452 : static tree
453 81116 : gfc_sym_mangled_function_id (gfc_symbol * sym)
454 : {
455 81116 : int has_underscore;
456 81116 : char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1];
457 :
458 : /* It may be possible to simply use the binding label if it's
459 : provided, and remove the other checks. Then we could use it
460 : for other things if we wished. */
461 81116 : if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) &&
462 3443 : sym->binding_label)
463 : /* use the binding label rather than the mangled name */
464 3433 : return get_identifier (sym->binding_label);
465 :
466 77683 : if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL
467 26450 : || (sym->module != NULL && (sym->attr.external
468 25395 : || sym->attr.if_source == IFSRC_IFBODY)))
469 52288 : && !sym->attr.module_procedure)
470 : {
471 : /* Main program is mangled into MAIN__. */
472 51895 : if (sym->attr.is_main_program)
473 26136 : return get_identifier ("MAIN__");
474 :
475 : /* Intrinsic procedures are never mangled. */
476 25759 : if (sym->attr.proc == PROC_INTRINSIC)
477 11065 : return get_identifier (sym->name);
478 :
479 14694 : if (flag_underscoring)
480 : {
481 13879 : has_underscore = strchr (sym->name, '_') != 0;
482 13879 : if (flag_second_underscore && has_underscore)
483 201 : snprintf (name, sizeof name, "%s__", sym->name);
484 : else
485 13678 : snprintf (name, sizeof name, "%s_", sym->name);
486 13879 : return get_identifier (name);
487 : }
488 : else
489 815 : return get_identifier (sym->name);
490 : }
491 : else
492 : {
493 25788 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
494 25788 : return get_identifier (name);
495 : }
496 : }
497 :
498 :
499 : void
500 102984 : gfc_set_decl_assembler_name (tree decl, tree name)
501 : {
502 102984 : tree target_mangled = targetm.mangle_decl_assembler_name (decl, name);
503 102984 : SET_DECL_ASSEMBLER_NAME (decl, target_mangled);
504 102984 : }
505 :
506 :
507 : /* Returns true if a variable of specified size should go on the stack. */
508 :
509 : bool
510 171705 : gfc_can_put_var_on_stack (tree size)
511 : {
512 171705 : unsigned HOST_WIDE_INT low;
513 :
514 171705 : if (!INTEGER_CST_P (size))
515 : return 0;
516 :
517 164208 : if (flag_max_stack_var_size < 0)
518 : return 1;
519 :
520 136492 : if (!tree_fits_uhwi_p (size))
521 : return 0;
522 :
523 136492 : low = TREE_INT_CST_LOW (size);
524 136492 : if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size)
525 206 : return 0;
526 :
527 : /* TODO: Set a per-function stack size limit. */
528 :
529 : return 1;
530 : }
531 :
532 :
533 : /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to
534 : an expression involving its corresponding pointer. There are
535 : 2 cases; one for variable size arrays, and one for everything else,
536 : because variable-sized arrays require one fewer level of
537 : indirection. */
538 :
539 : static void
540 288 : gfc_finish_cray_pointee (tree decl, gfc_symbol *sym)
541 : {
542 288 : tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer);
543 288 : tree value;
544 :
545 : /* Parameters need to be dereferenced. */
546 288 : if (sym->cp_pointer->attr.dummy)
547 1 : ptr_decl = build_fold_indirect_ref_loc (input_location,
548 : ptr_decl);
549 :
550 : /* Check to see if we're dealing with a variable-sized array. */
551 288 : if (sym->attr.dimension
552 288 : && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE)
553 : {
554 : /* These decls will be dereferenced later, so we don't dereference
555 : them here. */
556 140 : value = convert (TREE_TYPE (decl), ptr_decl);
557 : }
558 : else
559 : {
560 148 : ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)),
561 : ptr_decl);
562 148 : value = build_fold_indirect_ref_loc (input_location,
563 : ptr_decl);
564 : }
565 :
566 288 : SET_DECL_VALUE_EXPR (decl, value);
567 288 : DECL_HAS_VALUE_EXPR_P (decl) = 1;
568 288 : GFC_DECL_CRAY_POINTEE (decl) = 1;
569 288 : }
570 :
571 :
572 : /* Finish processing of a declaration without an initial value. */
573 :
574 : static void
575 173956 : gfc_finish_decl (tree decl)
576 : {
577 173956 : gcc_assert (TREE_CODE (decl) == PARM_DECL
578 : || DECL_INITIAL (decl) == NULL_TREE);
579 :
580 173956 : if (!VAR_P (decl))
581 : return;
582 :
583 774 : if (DECL_SIZE (decl) == NULL_TREE
584 774 : && COMPLETE_TYPE_P (TREE_TYPE (decl)))
585 0 : layout_decl (decl, 0);
586 :
587 : /* A few consistency checks. */
588 : /* A static variable with an incomplete type is an error if it is
589 : initialized. Also if it is not file scope. Otherwise, let it
590 : through, but if it is not `extern' then it may cause an error
591 : message later. */
592 : /* An automatic variable with an incomplete type is an error. */
593 :
594 : /* We should know the storage size. */
595 774 : gcc_assert (DECL_SIZE (decl) != NULL_TREE
596 : || (TREE_STATIC (decl)
597 : ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl))
598 : : DECL_EXTERNAL (decl)));
599 :
600 : /* The storage size should be constant. */
601 774 : gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl))
602 : || !DECL_SIZE (decl)
603 : || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST);
604 : }
605 :
606 :
607 : /* Handle setting of GFC_DECL_SCALAR* on DECL. */
608 :
609 : void
610 419453 : gfc_finish_decl_attrs (tree decl, symbol_attribute *attr)
611 : {
612 419453 : if (!attr->dimension && !attr->codimension)
613 : {
614 : /* Handle scalar allocatable variables. */
615 332625 : if (attr->allocatable)
616 : {
617 6797 : gfc_allocate_lang_decl (decl);
618 6797 : GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1;
619 : }
620 : /* Handle scalar pointer variables. */
621 332625 : if (attr->pointer)
622 : {
623 41581 : gfc_allocate_lang_decl (decl);
624 41581 : GFC_DECL_SCALAR_POINTER (decl) = 1;
625 : }
626 332625 : if (attr->target)
627 : {
628 25263 : gfc_allocate_lang_decl (decl);
629 25263 : GFC_DECL_SCALAR_TARGET (decl) = 1;
630 : }
631 : }
632 419453 : }
633 :
634 :
635 : /* Apply symbol attributes to a variable, and add it to the function scope. */
636 :
637 : static void
638 184553 : gfc_finish_var_decl (tree decl, gfc_symbol * sym)
639 : {
640 184553 : tree new_type;
641 :
642 : /* Set DECL_VALUE_EXPR for Cray Pointees. */
643 184553 : if (sym->attr.cray_pointee)
644 288 : gfc_finish_cray_pointee (decl, sym);
645 :
646 : /* TREE_ADDRESSABLE means the address of this variable is actually needed.
647 : This is the equivalent of the TARGET variables.
648 : We also need to set this if the variable is passed by reference in a
649 : CALL statement. */
650 184553 : if (sym->attr.target)
651 27579 : TREE_ADDRESSABLE (decl) = 1;
652 :
653 : /* If it wasn't used we wouldn't be getting it. */
654 184553 : TREE_USED (decl) = 1;
655 :
656 184553 : if (sym->attr.flavor == FL_PARAMETER
657 1468 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
658 1458 : TREE_READONLY (decl) = 1;
659 :
660 : /* Chain this decl to the pending declarations. Don't do pushdecl()
661 : because this would add them to the current scope rather than the
662 : function scope. */
663 184553 : if (current_function_decl != NULL_TREE)
664 : {
665 165122 : if (sym->ns->proc_name
666 165116 : && (sym->ns->proc_name->backend_decl == current_function_decl
667 17972 : || sym->result == sym))
668 147144 : gfc_add_decl_to_function (decl);
669 17978 : else if (sym->ns->omp_affinity_iterators)
670 : {
671 : /* Iterator variables are block-local; other variables in the
672 : iterator namespace (e.g. implicitly typed host-associated
673 : ones used in locator expressions) belong in the enclosing
674 : function. */
675 : gfc_symbol *iter;
676 52 : for (iter = sym->ns->omp_affinity_iterators; iter;
677 3 : iter = iter->tlink)
678 51 : if (iter == sym)
679 : break;
680 49 : if (iter)
681 48 : add_decl_as_local (decl);
682 : else
683 1 : gfc_add_decl_to_function (decl);
684 : }
685 17929 : else if (sym->ns->proc_name
686 17923 : && sym->ns->proc_name->attr.flavor == FL_LABEL)
687 : /* This is a BLOCK construct. */
688 12965 : add_decl_as_local (decl);
689 : else
690 4964 : gfc_add_decl_to_parent_function (decl);
691 : }
692 :
693 184553 : if (sym->attr.cray_pointee)
694 : return;
695 :
696 184265 : if(sym->attr.is_bind_c == 1 && sym->binding_label)
697 : {
698 : /* We need to put variables that are bind(c) into the common
699 : segment of the object file, because this is what C would do.
700 : gfortran would typically put them in either the BSS or
701 : initialized data segments, and only mark them as common if
702 : they were part of common blocks. However, if they are not put
703 : into common space, then C cannot initialize global Fortran
704 : variables that it interoperates with and the draft says that
705 : either Fortran or C should be able to initialize it (but not
706 : both, of course.) (J3/04-007, section 15.3). */
707 125 : TREE_PUBLIC(decl) = 1;
708 125 : DECL_COMMON(decl) = 1;
709 125 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
710 : {
711 2 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
712 2 : DECL_VISIBILITY_SPECIFIED (decl) = true;
713 : }
714 : }
715 :
716 : /* If a variable is USE associated, it's always external. */
717 184265 : if (sym->attr.use_assoc || sym->attr.used_in_submodule)
718 : {
719 113 : DECL_EXTERNAL (decl) = 1;
720 113 : TREE_PUBLIC (decl) = 1;
721 : }
722 184152 : else if (sym->fn_result_spec && !sym->ns->proc_name->module)
723 : {
724 :
725 1 : if (sym->ns->proc_name->attr.if_source != IFSRC_DECL)
726 0 : DECL_EXTERNAL (decl) = 1;
727 : else
728 1 : TREE_STATIC (decl) = 1;
729 :
730 1 : TREE_PUBLIC (decl) = 1;
731 : }
732 184151 : else if (sym->module && !sym->attr.result && !sym->attr.dummy)
733 : {
734 : /* TODO: Don't set sym->module for result or dummy variables. */
735 19422 : gcc_assert (current_function_decl == NULL_TREE || sym->result == sym);
736 :
737 19422 : TREE_PUBLIC (decl) = 1;
738 19422 : TREE_STATIC (decl) = 1;
739 19422 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
740 : {
741 344 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
742 344 : DECL_VISIBILITY_SPECIFIED (decl) = true;
743 : }
744 : }
745 :
746 : /* Derived types are a bit peculiar because of the possibility of
747 : a default initializer; this must be applied each time the variable
748 : comes into scope it therefore need not be static. These variables
749 : are SAVE_NONE but have an initializer. Otherwise explicitly
750 : initialized variables are SAVE_IMPLICIT and explicitly saved are
751 : SAVE_EXPLICIT. */
752 184265 : if (!sym->attr.use_assoc
753 184155 : && (sym->attr.save != SAVE_NONE || sym->attr.data
754 148435 : || (sym->value && sym->ns->proc_name->attr.is_main_program)
755 144111 : || (flag_coarray == GFC_FCOARRAY_LIB
756 2346 : && sym->attr.codimension && !sym->attr.allocatable)))
757 40217 : TREE_STATIC (decl) = 1;
758 :
759 : /* If derived-type variables with DTIO procedures are not made static
760 : some bits of code referencing them get optimized away.
761 : TODO Understand why this is so and fix it. */
762 184265 : if (!sym->attr.use_assoc
763 184155 : && ((sym->ts.type == BT_DERIVED
764 35794 : && sym->ts.u.derived->attr.has_dtio_procs)
765 183564 : || (sym->ts.type == BT_CLASS
766 4817 : && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs)))
767 623 : TREE_STATIC (decl) = 1;
768 :
769 : /* Treat asynchronous variables the same as volatile, for now. */
770 184265 : if (sym->attr.volatile_ || sym->attr.asynchronous)
771 : {
772 773 : TREE_THIS_VOLATILE (decl) = 1;
773 773 : TREE_SIDE_EFFECTS (decl) = 1;
774 773 : new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE);
775 773 : TREE_TYPE (decl) = new_type;
776 : }
777 :
778 : /* Keep variables larger than max-stack-var-size off stack. */
779 184259 : if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive)
780 161339 : && !sym->attr.automatic
781 161326 : && !sym->attr.associate_var
782 153116 : && sym->attr.save != SAVE_EXPLICIT
783 149431 : && sym->attr.save != SAVE_IMPLICIT
784 119452 : && INTEGER_CST_P (DECL_SIZE_UNIT (decl))
785 119061 : && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
786 : /* Put variable length auto array pointers always into stack. */
787 141 : && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE
788 2 : || sym->attr.dimension == 0
789 2 : || sym->as->type != AS_EXPLICIT
790 2 : || sym->attr.pointer
791 2 : || sym->attr.allocatable)
792 184404 : && !DECL_ARTIFICIAL (decl))
793 : {
794 138 : if (flag_max_stack_var_size > 0
795 131 : && !(sym->ns->proc_name
796 131 : && sym->ns->proc_name->attr.is_main_program))
797 32 : gfc_warning (OPT_Wsurprising,
798 : "Array %qs at %L is larger than limit set by "
799 : "%<-fmax-stack-var-size=%>, moved from stack to static "
800 : "storage. This makes the procedure unsafe when called "
801 : "recursively, or concurrently from multiple threads. "
802 : "Consider increasing the %<-fmax-stack-var-size=%> "
803 : "limit (or use %<-frecursive%>, which implies "
804 : "unlimited %<-fmax-stack-var-size%>) - or change the "
805 : "code to use an ALLOCATABLE array. If the variable is "
806 : "never accessed concurrently, this warning can be "
807 : "ignored, and the variable could also be declared with "
808 : "the SAVE attribute.",
809 : sym->name, &sym->declared_at);
810 :
811 138 : TREE_STATIC (decl) = 1;
812 :
813 : /* Because the size of this variable isn't known until now, we may have
814 : greedily added an initializer to this variable (in build_init_assign)
815 : even though the max-stack-var-size indicates the variable should be
816 : static. Therefore we rip out the automatic initializer here and
817 : replace it with a static one. */
818 138 : gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name);
819 138 : gfc_code *prev = NULL;
820 138 : gfc_code *code = sym->ns->code;
821 138 : while (code && code->op == EXEC_INIT_ASSIGN)
822 : {
823 : /* Look for an initializer meant for this symbol. */
824 8 : if (code->expr1->symtree == st)
825 : {
826 8 : if (prev)
827 0 : prev->next = code->next;
828 : else
829 8 : sym->ns->code = code->next;
830 :
831 : break;
832 : }
833 :
834 0 : prev = code;
835 0 : code = code->next;
836 : }
837 146 : if (code && code->op == EXEC_INIT_ASSIGN)
838 : {
839 : /* Keep the init expression for a static initializer. */
840 8 : sym->value = code->expr2;
841 : /* Cleanup the defunct code object, without freeing the init expr. */
842 8 : code->expr2 = NULL;
843 8 : gfc_free_statement (code);
844 8 : free (code);
845 : }
846 : }
847 :
848 184265 : if (sym->attr.omp_allocate && TREE_STATIC (decl))
849 : {
850 9 : struct gfc_omp_namelist *n;
851 35 : for (n = sym->ns->omp_allocate; n; n = n->next)
852 35 : if (n->sym == sym)
853 : break;
854 9 : tree alloc = gfc_conv_constant_to_tree (n->u2.allocator);
855 9 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align)
856 : : NULL_TREE);
857 9 : DECL_ATTRIBUTES (decl)
858 18 : = tree_cons (get_identifier ("omp allocate"),
859 9 : build_tree_list (alloc, align), DECL_ATTRIBUTES (decl));
860 : }
861 :
862 : /* Mark weak variables. */
863 184265 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
864 1 : declare_weak (decl);
865 :
866 : /* Handle threadprivate variables. */
867 184265 : if (sym->attr.threadprivate
868 184265 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
869 151 : set_decl_tls_model (decl, decl_default_tls_model (decl));
870 :
871 184265 : gfc_finish_decl_attrs (decl, &sym->attr);
872 : }
873 :
874 :
875 : /* Allocate the lang-specific part of a decl. */
876 :
877 : void
878 108296 : gfc_allocate_lang_decl (tree decl)
879 : {
880 108296 : if (DECL_LANG_SPECIFIC (decl) == NULL)
881 102999 : DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> ();
882 108296 : }
883 :
884 :
885 : /* Determine order of two symbol declarations. */
886 :
887 : static bool
888 5674 : decl_order (gfc_symbol *sym1, gfc_symbol *sym2)
889 : {
890 5674 : if (sym1->decl_order > sym2->decl_order)
891 : return true;
892 : else
893 0 : return false;
894 : }
895 :
896 :
897 : /* Remember a symbol to generate initialization/cleanup code at function
898 : entry/exit. */
899 :
900 : static void
901 82752 : gfc_defer_symbol_init (gfc_symbol * sym)
902 : {
903 82752 : gfc_symbol *p;
904 82752 : gfc_symbol *last;
905 82752 : gfc_symbol *head;
906 :
907 : /* Don't add a symbol twice. */
908 82752 : if (sym->tlink)
909 : return;
910 :
911 77255 : last = head = sym->ns->proc_name;
912 77255 : p = last->tlink;
913 :
914 77255 : gfc_function_dependency (sym, head);
915 :
916 : /* Make sure that setup code for dummy variables which are used in the
917 : setup of other variables is generated first. */
918 77255 : if (sym->attr.dummy)
919 : {
920 : /* Find the first dummy arg seen after us, or the first non-dummy arg.
921 : This is a circular list, so don't go past the head. */
922 : while (p != head
923 16754 : && (!p->attr.dummy || decl_order (p, sym)))
924 : {
925 3315 : last = p;
926 3315 : p = p->tlink;
927 : }
928 : }
929 63816 : else if (sym->fn_result_dep)
930 : {
931 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
932 : function result (ie. proc_name = proc_name->result), make sure that the
933 : order in the tlink chain is such that the code appears in declaration
934 : order. This ensures that mutual dependencies between these symbols are
935 : respected. */
936 : while (p != head
937 228 : && (!p->attr.result || decl_order (sym, p)))
938 : {
939 162 : last = p;
940 162 : p = p->tlink;
941 : }
942 : }
943 : /* Insert in between last and p. */
944 77255 : last->tlink = sym;
945 77255 : sym->tlink = p;
946 : }
947 :
948 :
949 : /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the
950 : backend_decl for a module symbol, if it all ready exists. If the
951 : module gsymbol does not exist, it is created. If the symbol does
952 : not exist, it is added to the gsymbol namespace. Returns true if
953 : an existing backend_decl is found. */
954 :
955 : bool
956 14003 : gfc_get_module_backend_decl (gfc_symbol *sym)
957 : {
958 14003 : gfc_gsymbol *gsym;
959 14003 : gfc_symbol *s;
960 14003 : gfc_symtree *st;
961 :
962 14003 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
963 :
964 14003 : if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE))
965 : {
966 14003 : st = NULL;
967 14003 : s = NULL;
968 :
969 : /* Check for a symbol with the same name. */
970 362 : if (gsym)
971 13641 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
972 :
973 14003 : if (!s)
974 : {
975 530 : if (!gsym)
976 : {
977 362 : gsym = gfc_get_gsymbol (sym->module, false);
978 362 : gsym->type = GSYM_MODULE;
979 362 : gsym->ns = gfc_get_namespace (NULL, 0);
980 : }
981 :
982 530 : st = gfc_new_symtree (&gsym->ns->sym_root, sym->name);
983 530 : st->n.sym = sym;
984 530 : sym->refs++;
985 : }
986 13473 : else if (gfc_fl_struct (sym->attr.flavor))
987 : {
988 10771 : if (s && s->attr.flavor == FL_PROCEDURE)
989 : {
990 5813 : gfc_interface *intr;
991 5813 : gcc_assert (s->attr.generic);
992 5958 : for (intr = s->generic; intr; intr = intr->next)
993 5958 : if (gfc_fl_struct (intr->sym->attr.flavor))
994 : {
995 5813 : s = intr->sym;
996 5813 : break;
997 : }
998 : }
999 :
1000 : /* Normally we can assume that s is a derived-type symbol since it
1001 : shares a name with the derived-type sym. However if sym is a
1002 : STRUCTURE, it may in fact share a name with any other basic type
1003 : variable. If s is in fact of derived type then we can continue
1004 : looking for a duplicate type declaration. */
1005 10771 : if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED)
1006 : {
1007 0 : s = s->ts.u.derived;
1008 : }
1009 :
1010 10771 : if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl)
1011 : {
1012 25 : if (s->attr.flavor == FL_UNION)
1013 0 : s->backend_decl = gfc_get_union_type (s);
1014 : else
1015 25 : s->backend_decl = gfc_get_derived_type (s);
1016 : }
1017 10771 : gfc_copy_dt_decls_ifequal (s, sym, true);
1018 10771 : return true;
1019 : }
1020 2702 : else if (s->backend_decl)
1021 : {
1022 2690 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1023 532 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
1024 : true);
1025 2158 : else if (sym->ts.type == BT_CHARACTER)
1026 312 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
1027 2690 : sym->backend_decl = s->backend_decl;
1028 2690 : return true;
1029 : }
1030 : }
1031 : return false;
1032 : }
1033 :
1034 :
1035 : /* Create an array index type variable with function scope. */
1036 :
1037 : static tree
1038 45686 : create_index_var (const char * pfx, int nest)
1039 : {
1040 45686 : tree decl;
1041 :
1042 45686 : decl = gfc_create_var_np (gfc_array_index_type, pfx);
1043 45686 : if (nest)
1044 28 : gfc_add_decl_to_parent_function (decl);
1045 : else
1046 45658 : gfc_add_decl_to_function (decl);
1047 45686 : return decl;
1048 : }
1049 :
1050 :
1051 : /* Create variables to hold all the non-constant bits of info for a
1052 : descriptorless array. Remember these in the lang-specific part of the
1053 : type. */
1054 :
1055 : static void
1056 62887 : gfc_build_qualified_array (tree decl, gfc_symbol * sym)
1057 : {
1058 62887 : tree type;
1059 62887 : int dim;
1060 62887 : int nest;
1061 62887 : gfc_namespace* procns;
1062 62887 : symbol_attribute *array_attr;
1063 62887 : gfc_array_spec *as;
1064 62887 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1065 :
1066 62887 : type = TREE_TYPE (decl);
1067 62887 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1068 62887 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1069 :
1070 : /* We just use the descriptor, if there is one. */
1071 62887 : if (GFC_DESCRIPTOR_TYPE_P (type))
1072 : return;
1073 :
1074 47217 : gcc_assert (GFC_ARRAY_TYPE_P (type));
1075 47217 : procns = gfc_find_proc_namespace (sym->ns);
1076 94434 : nest = (procns->proc_name->backend_decl != current_function_decl)
1077 47217 : && !sym->attr.contained;
1078 :
1079 847 : if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB
1080 535 : && as->type != AS_ASSUMED_SHAPE
1081 47729 : && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE)
1082 : {
1083 512 : tree token;
1084 512 : tree token_type = build_qualified_type (pvoid_type_node,
1085 : TYPE_QUAL_RESTRICT);
1086 :
1087 512 : if (sym->module && (sym->attr.use_assoc
1088 22 : || sym->ns->proc_name->attr.flavor == FL_MODULE))
1089 : {
1090 27 : tree token_name
1091 27 : = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"),
1092 : IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym))));
1093 27 : token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name,
1094 : token_type);
1095 27 : if (sym->attr.use_assoc
1096 22 : || (sym->attr.host_assoc && sym->attr.used_in_submodule))
1097 7 : DECL_EXTERNAL (token) = 1;
1098 : else
1099 20 : TREE_STATIC (token) = 1;
1100 :
1101 27 : TREE_PUBLIC (token) = 1;
1102 :
1103 27 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
1104 : {
1105 0 : DECL_VISIBILITY (token) = VISIBILITY_HIDDEN;
1106 0 : DECL_VISIBILITY_SPECIFIED (token) = true;
1107 : }
1108 : }
1109 : else
1110 : {
1111 485 : token = gfc_create_var_np (token_type, "caf_token");
1112 485 : TREE_STATIC (token) = 1;
1113 : }
1114 :
1115 512 : GFC_TYPE_ARRAY_CAF_TOKEN (type) = token;
1116 512 : DECL_ARTIFICIAL (token) = 1;
1117 512 : DECL_NONALIASED (token) = 1;
1118 :
1119 512 : if (sym->module && !sym->attr.use_assoc)
1120 : {
1121 22 : module_htab_entry *mod
1122 22 : = cur_module ? cur_module : gfc_find_module (sym->module);
1123 22 : pushdecl (token);
1124 22 : DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl;
1125 22 : gfc_module_add_decl (mod, token);
1126 22 : }
1127 490 : else if (sym->attr.host_assoc
1128 490 : && TREE_CODE (DECL_CONTEXT (current_function_decl))
1129 : != TRANSLATION_UNIT_DECL)
1130 3 : gfc_add_decl_to_parent_function (token);
1131 : else
1132 487 : gfc_add_decl_to_function (token);
1133 : }
1134 :
1135 112474 : for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++)
1136 : {
1137 65257 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1138 : {
1139 521 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1140 521 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1141 : }
1142 : /* Don't try to use the unknown bound for assumed shape arrays. */
1143 65257 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1144 65257 : && (as->type != AS_ASSUMED_SIZE
1145 2111 : || dim < GFC_TYPE_ARRAY_RANK (type) - 1))
1146 : {
1147 18569 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1148 18569 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1149 : }
1150 :
1151 65257 : if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE)
1152 : {
1153 11087 : GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest);
1154 11087 : suppress_warning (GFC_TYPE_ARRAY_STRIDE (type, dim));
1155 : }
1156 : }
1157 48338 : for (dim = GFC_TYPE_ARRAY_RANK (type);
1158 48338 : dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++)
1159 : {
1160 1121 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1161 : {
1162 114 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1163 114 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1164 : }
1165 : /* Don't try to use the unknown ubound for the last coarray dimension. */
1166 1121 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1167 1121 : && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1)
1168 : {
1169 60 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1170 60 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1171 : }
1172 : }
1173 47217 : if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE)
1174 : {
1175 8588 : GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type,
1176 : "offset");
1177 8588 : suppress_warning (GFC_TYPE_ARRAY_OFFSET (type));
1178 :
1179 8588 : if (nest)
1180 8 : gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type));
1181 : else
1182 8580 : gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type));
1183 : }
1184 :
1185 64307 : if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE && as->rank != 0
1186 64266 : && as->type != AS_ASSUMED_SIZE)
1187 : {
1188 15335 : GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest);
1189 15335 : suppress_warning (GFC_TYPE_ARRAY_SIZE (type));
1190 : }
1191 :
1192 47217 : if (POINTER_TYPE_P (type))
1193 : {
1194 20628 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type)));
1195 20628 : gcc_assert (TYPE_LANG_SPECIFIC (type)
1196 : == TYPE_LANG_SPECIFIC (TREE_TYPE (type)));
1197 20628 : type = TREE_TYPE (type);
1198 : }
1199 :
1200 47217 : if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type))
1201 : {
1202 15335 : tree size, range;
1203 :
1204 46005 : size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
1205 15335 : GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node);
1206 15335 : range = build_range_type (gfc_array_index_type, gfc_index_zero_node,
1207 : size);
1208 15335 : TYPE_DOMAIN (type) = range;
1209 15335 : layout_type (type);
1210 : }
1211 :
1212 85793 : if (TYPE_NAME (type) != NULL_TREE && as->rank > 0
1213 38126 : && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE
1214 84017 : && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1)))
1215 : {
1216 7135 : tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type));
1217 :
1218 7523 : for (dim = 0; dim < as->rank - 1; dim++)
1219 : {
1220 388 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1221 388 : gtype = TREE_TYPE (gtype);
1222 : }
1223 7135 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1224 7135 : if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL)
1225 7135 : TYPE_NAME (type) = NULL_TREE;
1226 : }
1227 :
1228 47217 : if (TYPE_NAME (type) == NULL_TREE)
1229 : {
1230 15776 : tree gtype = TREE_TYPE (type), rtype, type_decl;
1231 :
1232 36290 : for (dim = as->rank - 1; dim >= 0; dim--)
1233 : {
1234 20514 : tree lbound, ubound;
1235 20514 : lbound = GFC_TYPE_ARRAY_LBOUND (type, dim);
1236 20514 : ubound = GFC_TYPE_ARRAY_UBOUND (type, dim);
1237 20514 : rtype = build_range_type (gfc_array_index_type, lbound, ubound);
1238 20514 : gtype = build_array_type (gtype, rtype);
1239 : /* Ensure the bound variables aren't optimized out at -O0.
1240 : For -O1 and above they often will be optimized out, but
1241 : can be tracked by VTA. Also set DECL_NAMELESS, so that
1242 : the artificial lbound.N or ubound.N DECL_NAME doesn't
1243 : end up in debug info. */
1244 20514 : if (lbound
1245 20514 : && VAR_P (lbound)
1246 521 : && DECL_ARTIFICIAL (lbound)
1247 21035 : && DECL_IGNORED_P (lbound))
1248 : {
1249 521 : if (DECL_NAME (lbound)
1250 521 : && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)),
1251 : "lbound") != 0)
1252 521 : DECL_NAMELESS (lbound) = 1;
1253 521 : DECL_IGNORED_P (lbound) = 0;
1254 : }
1255 20514 : if (ubound
1256 20126 : && VAR_P (ubound)
1257 18569 : && DECL_ARTIFICIAL (ubound)
1258 39083 : && DECL_IGNORED_P (ubound))
1259 : {
1260 18569 : if (DECL_NAME (ubound)
1261 18569 : && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)),
1262 : "ubound") != 0)
1263 18569 : DECL_NAMELESS (ubound) = 1;
1264 18569 : DECL_IGNORED_P (ubound) = 0;
1265 : }
1266 : }
1267 15776 : TYPE_NAME (type) = type_decl = build_decl (input_location,
1268 : TYPE_DECL, NULL, gtype);
1269 15776 : DECL_ORIGINAL_TYPE (type_decl) = gtype;
1270 : }
1271 : }
1272 :
1273 :
1274 : /* For some dummy arguments we don't use the actual argument directly.
1275 : Instead we create a local decl and use that. This allows us to perform
1276 : initialization, and construct full type information. */
1277 :
1278 : static tree
1279 24906 : gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy)
1280 : {
1281 24906 : tree decl;
1282 24906 : tree type;
1283 24906 : gfc_array_spec *as;
1284 24906 : symbol_attribute *array_attr;
1285 24906 : char *name;
1286 24906 : gfc_packed packed;
1287 24906 : int n;
1288 24906 : bool known_size;
1289 24906 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1290 :
1291 : /* Use the array as and attr. */
1292 24906 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1293 24906 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1294 :
1295 : /* The dummy is returned for pointer, allocatable or assumed rank arrays.
1296 : For class arrays the information if sym is an allocatable or pointer
1297 : object needs to be checked explicitly (IS_CLASS_ARRAY can be false for
1298 : too many reasons to be of use here). */
1299 24906 : if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
1300 23041 : || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer)
1301 23041 : || array_attr->allocatable
1302 17980 : || (as && as->type == AS_ASSUMED_RANK))
1303 : return dummy;
1304 :
1305 : /* Add to list of variables if not a fake result variable.
1306 : These symbols are set on the symbol only, not on the class component. */
1307 14161 : if (sym->attr.result || sym->attr.dummy)
1308 13557 : gfc_defer_symbol_init (sym);
1309 :
1310 : /* For a class array the array descriptor is in the _data component, while
1311 : for a regular array the TREE_TYPE of the dummy is a pointer to the
1312 : descriptor. */
1313 14161 : type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy)
1314 : : TREE_TYPE (dummy));
1315 : /* type now is the array descriptor w/o any indirection. */
1316 14161 : gcc_assert (TREE_CODE (dummy) == PARM_DECL
1317 : && POINTER_TYPE_P (TREE_TYPE (dummy)));
1318 :
1319 : /* Do we know the element size? */
1320 14161 : known_size = sym->ts.type != BT_CHARACTER
1321 14161 : || INTEGER_CST_P (sym->ts.u.cl->backend_decl);
1322 :
1323 13281 : if (known_size && !GFC_DESCRIPTOR_TYPE_P (type))
1324 : {
1325 : /* For descriptorless arrays with known element size the actual
1326 : argument is sufficient. */
1327 6744 : gfc_build_qualified_array (dummy, sym);
1328 6744 : return dummy;
1329 : }
1330 :
1331 7417 : if (GFC_DESCRIPTOR_TYPE_P (type))
1332 : {
1333 : /* Create a descriptorless array pointer. */
1334 7048 : packed = PACKED_NO;
1335 :
1336 : /* Even when -frepack-arrays is used, symbols with TARGET attribute
1337 : are not repacked. */
1338 7048 : if (!flag_repack_arrays || sym->attr.target)
1339 : {
1340 7046 : if (as->type == AS_ASSUMED_SIZE)
1341 79 : packed = PACKED_FULL;
1342 : }
1343 : else
1344 : {
1345 2 : if (as->type == AS_EXPLICIT)
1346 : {
1347 3 : packed = PACKED_FULL;
1348 3 : for (n = 0; n < as->rank; n++)
1349 : {
1350 2 : if (!(as->upper[n]
1351 2 : && as->lower[n]
1352 2 : && as->upper[n]->expr_type == EXPR_CONSTANT
1353 2 : && as->lower[n]->expr_type == EXPR_CONSTANT))
1354 : {
1355 : packed = PACKED_PARTIAL;
1356 : break;
1357 : }
1358 : }
1359 : }
1360 : else
1361 : packed = PACKED_PARTIAL;
1362 : }
1363 :
1364 : /* For classarrays the element type is required, but
1365 : gfc_typenode_for_spec () returns the array descriptor. */
1366 7048 : type = is_classarray ? gfc_get_element_type (type)
1367 6150 : : gfc_typenode_for_spec (&sym->ts);
1368 7048 : type = gfc_get_nodesc_array_type (type, as, packed,
1369 7048 : !sym->attr.target);
1370 : }
1371 : else
1372 : {
1373 : /* We now have an expression for the element size, so create a fully
1374 : qualified type. Reset sym->backend decl or this will just return the
1375 : old type. */
1376 369 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1377 369 : sym->backend_decl = NULL_TREE;
1378 369 : type = gfc_sym_type (sym);
1379 369 : packed = PACKED_FULL;
1380 : }
1381 :
1382 7417 : ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0);
1383 7417 : decl = build_decl (input_location,
1384 : VAR_DECL, get_identifier (name), type);
1385 :
1386 7417 : DECL_ARTIFICIAL (decl) = 1;
1387 7417 : DECL_NAMELESS (decl) = 1;
1388 7417 : TREE_PUBLIC (decl) = 0;
1389 7417 : TREE_STATIC (decl) = 0;
1390 7417 : DECL_EXTERNAL (decl) = 0;
1391 :
1392 : /* Avoid uninitialized warnings for optional dummy arguments. */
1393 7417 : if ((sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.optional)
1394 7417 : || sym->attr.optional)
1395 804 : suppress_warning (decl);
1396 :
1397 : /* We should never get deferred shape arrays here. We used to because of
1398 : frontend bugs. */
1399 7417 : gcc_assert (as->type != AS_DEFERRED);
1400 :
1401 7417 : if (packed == PACKED_PARTIAL)
1402 1 : GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1;
1403 7416 : else if (packed == PACKED_FULL)
1404 448 : GFC_DECL_PACKED_ARRAY (decl) = 1;
1405 :
1406 7417 : gfc_build_qualified_array (decl, sym);
1407 :
1408 7417 : if (DECL_LANG_SPECIFIC (dummy))
1409 982 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy);
1410 : else
1411 6435 : gfc_allocate_lang_decl (decl);
1412 :
1413 7417 : GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy;
1414 :
1415 7417 : if (sym->ns->proc_name->backend_decl == current_function_decl
1416 518 : || sym->attr.contained)
1417 7409 : gfc_add_decl_to_function (decl);
1418 : else
1419 8 : gfc_add_decl_to_parent_function (decl);
1420 :
1421 : return decl;
1422 : }
1423 :
1424 : /* Return a constant or a variable to use as a string length. Does not
1425 : add the decl to the current scope. */
1426 :
1427 : static tree
1428 15763 : gfc_create_string_length (gfc_symbol * sym)
1429 : {
1430 15763 : gcc_assert (sym->ts.u.cl);
1431 15763 : gfc_conv_const_charlen (sym->ts.u.cl);
1432 :
1433 15763 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1434 : {
1435 3476 : tree length;
1436 3476 : const char *name;
1437 :
1438 : /* The string length variable shall be in static memory if it is either
1439 : explicitly SAVED, a module variable or with -fno-automatic. Only
1440 : relevant is "len=:" - otherwise, it is either a constant length or
1441 : it is an automatic variable. */
1442 6952 : bool static_length = sym->attr.save
1443 3299 : || sym->ns->proc_name->attr.flavor == FL_MODULE
1444 6775 : || (flag_max_stack_var_size == 0
1445 2 : && sym->ts.deferred && !sym->attr.dummy
1446 0 : && !sym->attr.result && !sym->attr.function);
1447 :
1448 : /* Also prefix the mangled name. We need to call GFC_PREFIX for static
1449 : variables as some systems do not support the "." in the assembler name.
1450 : For nonstatic variables, the "." does not appear in assembler. */
1451 3299 : if (static_length)
1452 : {
1453 177 : if (sym->module)
1454 54 : name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module,
1455 : sym->name);
1456 : else
1457 123 : name = gfc_get_string (GFC_PREFIX ("%s"), sym->name);
1458 : }
1459 3299 : else if (sym->module)
1460 0 : name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name);
1461 : else
1462 3299 : name = gfc_get_string (".%s", sym->name);
1463 :
1464 3476 : length = build_decl (input_location,
1465 : VAR_DECL, get_identifier (name),
1466 : gfc_charlen_type_node);
1467 3476 : DECL_ARTIFICIAL (length) = 1;
1468 3476 : TREE_USED (length) = 1;
1469 3476 : if (sym->ns->proc_name->tlink != NULL)
1470 3225 : gfc_defer_symbol_init (sym);
1471 :
1472 3476 : sym->ts.u.cl->backend_decl = length;
1473 :
1474 3476 : if (static_length)
1475 177 : TREE_STATIC (length) = 1;
1476 :
1477 3476 : if (sym->ns->proc_name->attr.flavor == FL_MODULE
1478 54 : && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used))
1479 54 : TREE_PUBLIC (length) = 1;
1480 : }
1481 :
1482 15763 : gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE);
1483 15763 : return sym->ts.u.cl->backend_decl;
1484 : }
1485 :
1486 : /* If a variable is assigned a label, we add another two auxiliary
1487 : variables. */
1488 :
1489 : static void
1490 66 : gfc_add_assign_aux_vars (gfc_symbol * sym)
1491 : {
1492 66 : tree addr;
1493 66 : tree length;
1494 66 : tree decl;
1495 :
1496 66 : gcc_assert (sym->backend_decl);
1497 :
1498 66 : decl = sym->backend_decl;
1499 66 : gfc_allocate_lang_decl (decl);
1500 66 : GFC_DECL_ASSIGN (decl) = 1;
1501 66 : length = build_decl (input_location,
1502 : VAR_DECL, create_tmp_var_name (sym->name),
1503 : gfc_charlen_type_node);
1504 66 : addr = build_decl (input_location,
1505 : VAR_DECL, create_tmp_var_name (sym->name),
1506 : pvoid_type_node);
1507 66 : gfc_finish_var_decl (length, sym);
1508 66 : gfc_finish_var_decl (addr, sym);
1509 : /* STRING_LENGTH is also used as flag. Less than -1 means that
1510 : ASSIGN_ADDR cannot be used. Equal -1 means that ASSIGN_ADDR is the
1511 : target label's address. Otherwise, value is the length of a format string
1512 : and ASSIGN_ADDR is its address. */
1513 66 : if (TREE_STATIC (length))
1514 1 : DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2);
1515 : else
1516 65 : gfc_defer_symbol_init (sym);
1517 :
1518 66 : GFC_DECL_STRING_LEN (decl) = length;
1519 66 : GFC_DECL_ASSIGN_ADDR (decl) = addr;
1520 66 : }
1521 :
1522 :
1523 : static void
1524 287189 : add_attributes_to_decl (tree *decl_p, const gfc_symbol *sym)
1525 : {
1526 287189 : unsigned id;
1527 287189 : tree list = NULL_TREE;
1528 287189 : symbol_attribute sym_attr = sym->attr;
1529 :
1530 3159079 : for (id = 0; id < EXT_ATTR_NUM; id++)
1531 2871890 : if (sym_attr.ext_attr & (1 << id) && ext_attr_list[id].middle_end_name)
1532 : {
1533 0 : tree ident = get_identifier (ext_attr_list[id].middle_end_name);
1534 0 : list = tree_cons (ident, NULL_TREE, list);
1535 : }
1536 :
1537 287189 : tree clauses = NULL_TREE;
1538 :
1539 287189 : if (sym_attr.oacc_routine_lop != OACC_ROUTINE_LOP_NONE)
1540 : {
1541 355 : omp_clause_code code;
1542 355 : switch (sym_attr.oacc_routine_lop)
1543 : {
1544 : case OACC_ROUTINE_LOP_GANG:
1545 : code = OMP_CLAUSE_GANG;
1546 : break;
1547 : case OACC_ROUTINE_LOP_WORKER:
1548 : code = OMP_CLAUSE_WORKER;
1549 : break;
1550 : case OACC_ROUTINE_LOP_VECTOR:
1551 : code = OMP_CLAUSE_VECTOR;
1552 : break;
1553 : case OACC_ROUTINE_LOP_SEQ:
1554 : code = OMP_CLAUSE_SEQ;
1555 : break;
1556 0 : case OACC_ROUTINE_LOP_NONE:
1557 0 : case OACC_ROUTINE_LOP_ERROR:
1558 0 : default:
1559 0 : gcc_unreachable ();
1560 : }
1561 355 : tree c = build_omp_clause (UNKNOWN_LOCATION, code);
1562 355 : OMP_CLAUSE_CHAIN (c) = clauses;
1563 355 : clauses = c;
1564 :
1565 355 : tree dims = oacc_build_routine_dims (clauses);
1566 355 : list = oacc_replace_fn_attrib_attr (list, dims);
1567 : }
1568 :
1569 287189 : if (sym_attr.oacc_routine_nohost)
1570 : {
1571 40 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_NOHOST);
1572 40 : OMP_CLAUSE_CHAIN (c) = clauses;
1573 40 : clauses = c;
1574 : }
1575 :
1576 : /* FIXME: 'declare_target_link' permits both any and host, but
1577 : will fail if one sets OMP_CLAUSE_DEVICE_TYPE_KIND. */
1578 287189 : if (sym_attr.omp_device_type != OMP_DEVICE_TYPE_UNSET
1579 414 : && !sym_attr.omp_declare_target_link
1580 406 : && !sym_attr.omp_declare_target_indirect /* implies 'any' */)
1581 : {
1582 360 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_DEVICE_TYPE);
1583 360 : switch (sym_attr.omp_device_type)
1584 : {
1585 5 : case OMP_DEVICE_TYPE_HOST:
1586 5 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_HOST;
1587 5 : break;
1588 4 : case OMP_DEVICE_TYPE_NOHOST:
1589 4 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_NOHOST;
1590 4 : break;
1591 351 : case OMP_DEVICE_TYPE_ANY:
1592 351 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_ANY;
1593 351 : break;
1594 0 : default:
1595 0 : gcc_unreachable ();
1596 : }
1597 360 : OMP_CLAUSE_CHAIN (c) = clauses;
1598 360 : clauses = c;
1599 : }
1600 :
1601 : /* Also check trans-common.cc when updating/removing the following;
1602 : also update f95.c's gfc_gnu_attributes. */
1603 287189 : if (sym_attr.omp_groupprivate)
1604 6 : gfc_error ("Sorry, OMP GROUPPRIVATE not implemented, "
1605 6 : "used by %qs declared at %L", sym->name, &sym->declared_at);
1606 287183 : else if (sym_attr.omp_declare_target_local)
1607 : /* Use 'else if' as groupprivate implies 'local'. */
1608 0 : gfc_error ("Sorry, OMP DECLARE TARGET with LOCAL clause not implemented, "
1609 0 : "used by %qs declared at %L", sym->name, &sym->declared_at);
1610 :
1611 287189 : bool has_declare = true;
1612 287189 : if (sym_attr.omp_declare_target_link
1613 287181 : || sym_attr.oacc_declare_link)
1614 9 : list = tree_cons (get_identifier ("omp declare target link"),
1615 : clauses, list);
1616 287180 : else if (sym_attr.omp_declare_target
1617 286302 : || sym_attr.oacc_declare_create
1618 286259 : || sym_attr.oacc_declare_copyin
1619 286249 : || sym_attr.oacc_declare_deviceptr
1620 286249 : || sym_attr.oacc_declare_device_resident)
1621 947 : list = tree_cons (get_identifier ("omp declare target"),
1622 : clauses, list);
1623 : else
1624 : has_declare = false;
1625 :
1626 287189 : if (sym_attr.omp_declare_target_indirect)
1627 46 : list = tree_cons (get_identifier ("omp declare target indirect"),
1628 : clauses, list);
1629 :
1630 287189 : decl_attributes (decl_p, list, 0);
1631 :
1632 287189 : if (has_declare
1633 956 : && VAR_P (*decl_p)
1634 411 : && sym->ns->proc_name->attr.flavor != FL_MODULE)
1635 : {
1636 150 : has_declare = false;
1637 618 : for (gfc_namespace* ns = sym->ns->contained; ns; ns = ns->sibling)
1638 471 : if (ns->proc_name->attr.omp_declare_target)
1639 : {
1640 : has_declare = true;
1641 : break;
1642 : }
1643 : }
1644 :
1645 956 : if (has_declare && VAR_P (*decl_p) && has_declare)
1646 : {
1647 : /* Add to offload_vars; get_create does so for omp_declare_target,
1648 : omp_declare_target_link requires manual work. */
1649 264 : gcc_assert (symtab_node::get (*decl_p) == 0);
1650 264 : symtab_node *node = symtab_node::get_create (*decl_p);
1651 264 : if (node != NULL && sym_attr.omp_declare_target_link)
1652 : {
1653 8 : node->offloadable = 1;
1654 8 : if (ENABLE_OFFLOADING)
1655 : {
1656 : g->have_offload = true;
1657 : if (is_a <varpool_node *> (node))
1658 : vec_safe_push (offload_vars, *decl_p);
1659 : }
1660 : }
1661 : }
1662 287189 : }
1663 :
1664 :
1665 : static void build_function_decl (gfc_symbol * sym, bool global);
1666 :
1667 :
1668 : /* Return the decl for a gfc_symbol, create it if it doesn't already
1669 : exist. */
1670 :
1671 : tree
1672 1835216 : gfc_get_symbol_decl (gfc_symbol * sym)
1673 : {
1674 1835216 : tree decl;
1675 1835216 : tree length = NULL_TREE;
1676 1835216 : int byref;
1677 1835216 : bool intrinsic_array_parameter = false;
1678 1835216 : bool fun_or_res;
1679 :
1680 1835216 : gcc_assert (sym->attr.referenced
1681 : || sym->attr.flavor == FL_PROCEDURE
1682 : || sym->attr.use_assoc
1683 : || sym->attr.used_in_submodule
1684 : || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY
1685 : || (sym->module && sym->attr.if_source != IFSRC_DECL
1686 : && sym->backend_decl));
1687 :
1688 326065 : if (sym->attr.dummy && sym->ns->proc_name->attr.is_bind_c
1689 1859197 : && is_CFI_desc (sym, NULL))
1690 : {
1691 15489 : gcc_assert (sym->backend_decl && (sym->ts.type != BT_CHARACTER
1692 : || sym->ts.u.cl->backend_decl));
1693 : return sym->backend_decl;
1694 : }
1695 :
1696 1819727 : if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function)
1697 226729 : byref = gfc_return_by_reference (sym->ns->proc_name);
1698 : else
1699 : byref = 0;
1700 :
1701 : /* Make sure that the vtab for the declared type is completed. */
1702 1819727 : if (sym->ts.type == BT_CLASS)
1703 : {
1704 85614 : gfc_component *c = CLASS_DATA (sym);
1705 85614 : if (!c->ts.u.derived->backend_decl)
1706 : {
1707 2541 : gfc_find_derived_vtab (c->ts.u.derived);
1708 2541 : gfc_get_derived_type (sym->ts.u.derived);
1709 : }
1710 : }
1711 :
1712 : /* PDT parameterized array components and string_lengths must have the
1713 : 'len' parameters substituted for the expressions appearing in the
1714 : declaration of the entity and memory allocated/deallocated. */
1715 1819727 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1716 321942 : && sym->param_list != NULL
1717 4261 : && (gfc_current_ns == sym->ns
1718 2071 : || (gfc_current_ns == sym->ns->parent
1719 2071 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1720 3034 : && !(sym->attr.use_assoc || sym->attr.dummy))
1721 2775 : gfc_defer_symbol_init (sym);
1722 :
1723 1819727 : if ((sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_comp)
1724 68 : && (gfc_current_ns == sym->ns
1725 25 : || (gfc_current_ns == sym->ns->parent
1726 24 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1727 43 : && !(sym->attr.use_assoc || sym->attr.dummy))
1728 43 : gfc_defer_symbol_init (sym);
1729 :
1730 : /* Dummy PDT 'len' parameters should be checked when they are explicit. */
1731 1819727 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1732 321942 : && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
1733 11330 : && sym->param_list != NULL
1734 454 : && sym->attr.dummy)
1735 189 : gfc_defer_symbol_init (sym);
1736 :
1737 : /* All deferred character length procedures need to retain the backend
1738 : decl, which is a pointer to the character length in the caller's
1739 : namespace and to declare a local character length. */
1740 1819727 : if (!byref && sym->attr.function
1741 19286 : && sym->ts.type == BT_CHARACTER
1742 1373 : && sym->ts.deferred
1743 268 : && sym->ts.u.cl->passed_length == NULL
1744 12 : && sym->ts.u.cl->backend_decl
1745 0 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1746 : {
1747 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1748 0 : gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)));
1749 0 : sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1750 : }
1751 :
1752 17904 : fun_or_res = byref && (sym->attr.result
1753 14115 : || (sym->attr.function && sym->ts.deferred));
1754 1819727 : if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res)
1755 : {
1756 : /* Return via extra parameter. */
1757 313787 : if (sym->attr.result && byref
1758 3789 : && !sym->backend_decl)
1759 : {
1760 2416 : sym->backend_decl =
1761 1208 : DECL_ARGUMENTS (sym->ns->proc_name->backend_decl);
1762 : /* For entry master function skip over the __entry
1763 : argument. */
1764 1208 : if (sym->ns->proc_name->attr.entry_master)
1765 83 : sym->backend_decl = DECL_CHAIN (sym->backend_decl);
1766 : }
1767 :
1768 : /* Automatic array indices in module procedures need the backend_decl
1769 : to be extracted from the procedure formal arglist. */
1770 313787 : if (sym->attr.dummy && !sym->backend_decl)
1771 : {
1772 12 : gfc_formal_arglist *f;
1773 18 : for (f = sym->ns->proc_name->formal; f; f = f->next)
1774 : {
1775 18 : gfc_symbol *fsym = f->sym;
1776 18 : if (strcmp (sym->name, fsym->name))
1777 6 : continue;
1778 12 : sym->backend_decl = fsym->backend_decl;
1779 12 : break;
1780 : }
1781 : }
1782 :
1783 : /* Dummy variables should already have been created. */
1784 313787 : gcc_assert (sym->backend_decl);
1785 :
1786 : /* However, the string length of deferred arrays must be set. */
1787 313787 : if (sym->ts.type == BT_CHARACTER
1788 28843 : && sym->ts.deferred
1789 3604 : && sym->attr.dimension
1790 1336 : && sym->attr.allocatable)
1791 530 : gfc_defer_symbol_init (sym);
1792 :
1793 313787 : if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS)
1794 10059 : GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1;
1795 :
1796 : /* Create a character length variable. */
1797 313787 : if (sym->ts.type == BT_CHARACTER)
1798 : {
1799 : /* For a deferred dummy, make a new string length variable. */
1800 28843 : if (sym->ts.deferred
1801 3604 : &&
1802 3604 : (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl))
1803 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1804 :
1805 28843 : if (sym->ts.deferred && byref)
1806 : {
1807 : /* The string length of a deferred char array is stored in the
1808 : parameter at sym->ts.u.cl->backend_decl as a reference and
1809 : marked as a result. Exempt this variable from generating a
1810 : temporary for it. */
1811 747 : if (sym->attr.result)
1812 : {
1813 : /* We need to insert a indirect ref for param decls. */
1814 660 : if (sym->ts.u.cl->backend_decl
1815 660 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1816 : {
1817 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1818 0 : sym->ts.u.cl->backend_decl =
1819 0 : build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1820 : }
1821 : }
1822 : /* For all other parameters make sure, that they are copied so
1823 : that the value and any modifications are local to the routine
1824 : by generating a temporary variable. */
1825 87 : else if (sym->attr.function
1826 75 : && sym->ts.u.cl->passed_length == NULL
1827 0 : && sym->ts.u.cl->backend_decl)
1828 : {
1829 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1830 0 : if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)))
1831 0 : sym->ts.u.cl->backend_decl
1832 0 : = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1833 : else
1834 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1835 : }
1836 : }
1837 :
1838 28843 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1839 1 : length = gfc_create_string_length (sym);
1840 : else
1841 28842 : length = sym->ts.u.cl->backend_decl;
1842 28843 : if (VAR_P (length) && DECL_FILE_SCOPE_P (length))
1843 : {
1844 : /* Add the string length to the same context as the symbol. */
1845 688 : if (DECL_CONTEXT (length) == NULL_TREE)
1846 : {
1847 688 : if (sym->backend_decl == current_function_decl
1848 688 : || (DECL_CONTEXT (sym->backend_decl)
1849 : == current_function_decl))
1850 687 : gfc_add_decl_to_function (length);
1851 : else
1852 1 : gfc_add_decl_to_parent_function (length);
1853 : }
1854 :
1855 688 : gcc_assert (sym->backend_decl == current_function_decl
1856 : ? DECL_CONTEXT (length) == current_function_decl
1857 : : (DECL_CONTEXT (sym->backend_decl)
1858 : == DECL_CONTEXT (length)));
1859 :
1860 688 : gfc_defer_symbol_init (sym);
1861 : }
1862 : }
1863 :
1864 : /* Use a copy of the descriptor for dummy arrays. */
1865 313787 : if ((sym->attr.dimension || sym->attr.codimension)
1866 107474 : && !TREE_USED (sym->backend_decl))
1867 : {
1868 19865 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1869 : /* Prevent the dummy from being detected as unused if it is copied. */
1870 19865 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1871 5546 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1872 19865 : sym->backend_decl = decl;
1873 : }
1874 :
1875 : /* Returning the descriptor for dummy class arrays is hazardous, because
1876 : some caller is expecting an expression to apply the component refs to.
1877 : Therefore the descriptor is only created and stored in
1878 : sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then
1879 : responsible to extract it from there, when the descriptor is
1880 : desired. */
1881 27130 : if (IS_CLASS_COARRAY_OR_ARRAY (sym)
1882 324160 : && (!DECL_LANG_SPECIFIC (sym->backend_decl)
1883 8021 : || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl)))
1884 : {
1885 4234 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1886 : /* Prevent the dummy from being detected as unused if it is copied. */
1887 4234 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1888 898 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1889 4234 : sym->backend_decl = decl;
1890 : }
1891 :
1892 313787 : TREE_USED (sym->backend_decl) = 1;
1893 313787 : if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1894 6 : gfc_add_assign_aux_vars (sym);
1895 :
1896 313787 : if (sym->ts.type == BT_CLASS && sym->backend_decl
1897 27130 : && !IS_CLASS_COARRAY_OR_ARRAY (sym))
1898 16757 : GFC_DECL_CLASS (sym->backend_decl) = 1;
1899 :
1900 313787 : return sym->backend_decl;
1901 : }
1902 :
1903 15864 : if (sym->result == sym && sym->attr.assign
1904 1505945 : && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1905 1 : gfc_add_assign_aux_vars (sym);
1906 :
1907 1505940 : if (sym->backend_decl)
1908 : return sym->backend_decl;
1909 :
1910 : /* Special case for array-valued named constants from intrinsic
1911 : procedures; those are inlined. */
1912 199318 : if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER
1913 138 : && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV
1914 138 : || sym->from_intmod == INTMOD_ISO_C_BINDING))
1915 199318 : intrinsic_array_parameter = true;
1916 :
1917 : /* If use associated compilation, use the module
1918 : declaration. */
1919 199318 : if ((sym->attr.flavor == FL_VARIABLE
1920 17097 : || sym->attr.flavor == FL_PARAMETER)
1921 183774 : && (sym->attr.use_assoc || sym->attr.used_in_submodule)
1922 2815 : && !intrinsic_array_parameter
1923 2806 : && sym->module
1924 202124 : && gfc_get_module_backend_decl (sym))
1925 : {
1926 2690 : if (sym->ts.type == BT_CLASS && sym->backend_decl)
1927 39 : GFC_DECL_CLASS(sym->backend_decl) = 1;
1928 2690 : return sym->backend_decl;
1929 : }
1930 :
1931 196628 : if (sym->attr.flavor == FL_PROCEDURE)
1932 : {
1933 : /* Catch functions. Only used for actual parameters,
1934 : procedure pointers and procptr initialization targets. */
1935 15418 : if (sym->attr.use_assoc
1936 14590 : || sym->attr.used_in_submodule
1937 14584 : || sym->attr.intrinsic
1938 13293 : || sym->attr.if_source != IFSRC_DECL)
1939 : {
1940 3123 : decl = gfc_get_extern_function_decl (sym);
1941 : }
1942 : else
1943 : {
1944 12295 : if (!sym->backend_decl)
1945 12295 : build_function_decl (sym, false);
1946 12295 : decl = sym->backend_decl;
1947 : }
1948 15418 : return decl;
1949 : }
1950 :
1951 181210 : if (sym->ts.type == BT_UNKNOWN)
1952 0 : gfc_fatal_error ("%s at %L has no default type", sym->name,
1953 : &sym->declared_at);
1954 :
1955 181210 : if (sym->attr.intrinsic)
1956 0 : gfc_internal_error ("intrinsic variable which isn't a procedure");
1957 :
1958 : /* Create string length decl first so that they can be used in the
1959 : type declaration. For associate names, the target character
1960 : length is used. Set 'length' to a constant so that if the
1961 : string length is a variable, it is not finished a second time. */
1962 181210 : if (sym->ts.type == BT_CHARACTER)
1963 : {
1964 15777 : if (sym->attr.associate_var
1965 1773 : && sym->ts.deferred
1966 341 : && sym->assoc && sym->assoc->target
1967 341 : && ((sym->assoc->target->expr_type == EXPR_VARIABLE
1968 230 : && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER)
1969 298 : || sym->assoc->target->expr_type != EXPR_VARIABLE))
1970 154 : sym->ts.u.cl->backend_decl = NULL_TREE;
1971 :
1972 15777 : if (sym->attr.associate_var
1973 1773 : && sym->ts.u.cl->backend_decl
1974 627 : && (VAR_P (sym->ts.u.cl->backend_decl)
1975 362 : || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL))
1976 313 : length = gfc_index_zero_node;
1977 : else
1978 15464 : length = gfc_create_string_length (sym);
1979 : }
1980 :
1981 : /* Create the decl for the variable. */
1982 181210 : decl = build_decl (gfc_get_location (&sym->declared_at),
1983 : VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym));
1984 :
1985 : /* Symbols from modules should have their assembler names mangled.
1986 : This is done here rather than in gfc_finish_var_decl because it
1987 : is different for string length variables. */
1988 181210 : if (sym->module || sym->fn_result_spec)
1989 : {
1990 19494 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
1991 19494 : if (sym->attr.use_assoc && !intrinsic_array_parameter)
1992 113 : DECL_IGNORED_P (decl) = 1;
1993 : }
1994 :
1995 181210 : if (sym->attr.select_type_temporary)
1996 : {
1997 5666 : DECL_ARTIFICIAL (decl) = 1;
1998 5666 : DECL_IGNORED_P (decl) = 1;
1999 : }
2000 :
2001 181210 : if (sym->attr.dimension || sym->attr.codimension)
2002 : {
2003 : /* Create variables to hold the non-constant bits of array info. */
2004 48472 : gfc_build_qualified_array (decl, sym);
2005 :
2006 48472 : if (sym->attr.contiguous
2007 48403 : || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer))
2008 43736 : GFC_DECL_PACKED_ARRAY (decl) = 1;
2009 : }
2010 :
2011 : /* Remember this variable for allocation/cleanup. */
2012 133189 : if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension
2013 130435 : || (sym->ts.type == BT_CLASS &&
2014 4817 : (CLASS_DATA (sym)->attr.dimension
2015 2700 : || CLASS_DATA (sym)->attr.allocatable))
2016 126888 : || (sym->ts.type == BT_DERIVED
2017 30246 : && (sym->ts.u.derived->attr.alloc_comp
2018 23858 : || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save
2019 5246 : && !sym->ns->proc_name->attr.is_main_program
2020 2134 : && gfc_is_finalizable (sym->ts.u.derived, NULL))))
2021 : /* This applies a derived type default initializer. */
2022 301461 : || (sym->ts.type == BT_DERIVED
2023 23609 : && sym->attr.save == SAVE_NONE
2024 6559 : && !sym->attr.data
2025 6510 : && !sym->attr.allocatable
2026 6510 : && (sym->value && !sym->ns->proc_name->attr.is_main_program)
2027 522 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)))
2028 61481 : gfc_defer_symbol_init (sym);
2029 :
2030 : /* Set the vptr of unlimited polymorphic pointer variables so that
2031 : they do not cause segfaults in select type, when the selector
2032 : is an intrinsic type. Arrays are captured above. */
2033 181210 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
2034 1114 : && CLASS_DATA (sym)->attr.class_pointer
2035 679 : && !CLASS_DATA (sym)->attr.dimension && !sym->attr.dummy
2036 303 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc)
2037 172 : gfc_defer_symbol_init (sym);
2038 :
2039 181210 : if (sym->ts.type == BT_CHARACTER
2040 15777 : && sym->attr.allocatable
2041 1907 : && !sym->attr.dimension
2042 979 : && sym->ts.u.cl && sym->ts.u.cl->length
2043 198 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
2044 27 : gfc_defer_symbol_init (sym);
2045 :
2046 : /* Associate names can use the hidden string length variable
2047 : of their associated target. */
2048 181210 : if (sym->ts.type == BT_CHARACTER
2049 15777 : && TREE_CODE (length) != INTEGER_CST
2050 3271 : && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF)
2051 : {
2052 3211 : length = fold_convert (gfc_charlen_type_node, length);
2053 3211 : gfc_finish_var_decl (length, sym);
2054 3211 : if (!sym->attr.associate_var
2055 2185 : && VAR_P (length)
2056 2185 : && sym->value && sym->value->expr_type != EXPR_NULL
2057 6 : && sym->value->ts.u.cl->length)
2058 : {
2059 6 : gfc_expr *len = sym->value->ts.u.cl->length;
2060 6 : DECL_INITIAL (length) = gfc_conv_initializer (len, &len->ts,
2061 6 : TREE_TYPE (length),
2062 : false, false, false);
2063 6 : DECL_INITIAL (length) = fold_convert (gfc_charlen_type_node,
2064 : DECL_INITIAL (length));
2065 6 : }
2066 : else
2067 3205 : gcc_assert (!sym->value || sym->value->expr_type == EXPR_NULL);
2068 : }
2069 :
2070 181210 : gfc_finish_var_decl (decl, sym);
2071 :
2072 181210 : if (sym->ts.type == BT_CHARACTER)
2073 : /* Character variables need special handling. */
2074 15777 : gfc_allocate_lang_decl (decl);
2075 :
2076 181210 : if (sym->assoc && sym->attr.subref_array_pointer)
2077 392 : sym->attr.pointer = 1;
2078 :
2079 181210 : if (sym->attr.pointer && sym->attr.dimension
2080 4903 : && !sym->ts.deferred
2081 4614 : && !(sym->attr.select_type_temporary
2082 1088 : && !sym->attr.subref_array_pointer))
2083 3676 : GFC_DECL_PTR_ARRAY_P (decl) = 1;
2084 :
2085 181210 : if (sym->ts.type == BT_CLASS)
2086 4817 : GFC_DECL_CLASS(decl) = 1;
2087 :
2088 181210 : sym->backend_decl = decl;
2089 :
2090 181210 : if (sym->attr.assign)
2091 59 : gfc_add_assign_aux_vars (sym);
2092 :
2093 181210 : if (intrinsic_array_parameter)
2094 : {
2095 9 : TREE_STATIC (decl) = 1;
2096 9 : DECL_EXTERNAL (decl) = 0;
2097 : }
2098 :
2099 181210 : if (TREE_STATIC (decl)
2100 40871 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)
2101 40871 : && (sym->attr.save || sym->ns->proc_name->attr.is_main_program
2102 1641 : || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
2103 1602 : || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE)
2104 40701 : && (flag_coarray != GFC_FCOARRAY_LIB
2105 2128 : || !sym->attr.codimension || sym->attr.allocatable)
2106 221570 : && !(IS_PDT (sym) || IS_CLASS_PDT (sym)))
2107 : {
2108 : /* Add static initializer. For procedures, it is only needed if
2109 : SAVE is specified otherwise they need to be reinitialized
2110 : every time the procedure is entered. The TREE_STATIC is
2111 : in this case due to -fmax-stack-var-size=. */
2112 :
2113 39822 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2114 39822 : TREE_TYPE (decl), sym->attr.dimension
2115 39822 : || (sym->attr.codimension
2116 35 : && sym->attr.allocatable),
2117 39295 : sym->attr.pointer || sym->attr.allocatable
2118 38882 : || sym->ts.type == BT_CLASS,
2119 39822 : sym->attr.proc_pointer);
2120 : }
2121 :
2122 181210 : if (!TREE_STATIC (decl)
2123 140339 : && POINTER_TYPE_P (TREE_TYPE (decl))
2124 18456 : && !sym->attr.pointer
2125 12689 : && !sym->attr.allocatable
2126 10497 : && !sym->attr.proc_pointer
2127 191707 : && !sym->attr.select_type_temporary)
2128 8050 : DECL_BY_REFERENCE (decl) = 1;
2129 :
2130 181210 : if (sym->attr.associate_var)
2131 7233 : GFC_DECL_ASSOCIATE_VAR_P (decl) = 1;
2132 :
2133 : /* We only longer mark __def_init as read-only if it actually has an
2134 : initializer, it does not needlessly take up space in the
2135 : read-only section and can go into the BSS instead, see PR 84487.
2136 : Marking this as artificial means that OpenMP will treat this as
2137 : predetermined shared. */
2138 :
2139 181210 : bool def_init = startswith (sym->name, "__def_init");
2140 :
2141 181210 : if (sym->attr.vtab || def_init)
2142 : {
2143 19591 : DECL_ARTIFICIAL (decl) = 1;
2144 19591 : if (def_init && sym->value)
2145 3603 : TREE_READONLY (decl) = 1;
2146 : }
2147 :
2148 : /* Add attributes to variables. Functions are handled elsewhere. */
2149 181210 : add_attributes_to_decl (&decl, sym);
2150 :
2151 181210 : if (sym->ts.deferred && VAR_P (length))
2152 1831 : decl_attributes (&length, DECL_ATTRIBUTES (decl), 0);
2153 :
2154 181210 : return decl;
2155 : }
2156 :
2157 :
2158 : /* Substitute a temporary variable in place of the real one. */
2159 :
2160 : void
2161 5829 : gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save)
2162 : {
2163 5829 : save->attr = sym->attr;
2164 5829 : save->decl = sym->backend_decl;
2165 :
2166 5829 : gfc_clear_attr (&sym->attr);
2167 5829 : sym->attr.referenced = 1;
2168 5829 : sym->attr.flavor = FL_VARIABLE;
2169 :
2170 5829 : sym->backend_decl = decl;
2171 5829 : }
2172 :
2173 :
2174 : /* Restore the original variable. */
2175 :
2176 : void
2177 5829 : gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save)
2178 : {
2179 5829 : sym->attr = save->attr;
2180 5829 : sym->backend_decl = save->decl;
2181 5829 : }
2182 :
2183 :
2184 : /* Declare a procedure pointer. */
2185 :
2186 : static tree
2187 707 : get_proc_pointer_decl (gfc_symbol *sym)
2188 : {
2189 707 : tree decl;
2190 :
2191 707 : if (sym->module || sym->fn_result_spec)
2192 : {
2193 149 : const char *name;
2194 149 : gfc_gsymbol *gsym;
2195 :
2196 149 : name = mangled_identifier (sym);
2197 149 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
2198 149 : if (gsym != NULL)
2199 : {
2200 79 : gfc_symbol *s;
2201 79 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2202 79 : if (s && s->backend_decl)
2203 79 : return s->backend_decl;
2204 : }
2205 : }
2206 :
2207 628 : decl = sym->backend_decl;
2208 628 : if (decl)
2209 : return decl;
2210 :
2211 628 : decl = build_decl (input_location,
2212 : VAR_DECL, get_identifier (sym->name),
2213 : build_pointer_type (gfc_get_function_type (sym)));
2214 :
2215 628 : if (sym->module)
2216 : {
2217 : /* Apply name mangling. */
2218 70 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
2219 70 : if (sym->attr.use_assoc)
2220 0 : DECL_IGNORED_P (decl) = 1;
2221 : }
2222 :
2223 628 : if ((sym->ns->proc_name
2224 628 : && sym->ns->proc_name->backend_decl == current_function_decl)
2225 76 : || sym->attr.contained)
2226 552 : gfc_add_decl_to_function (decl);
2227 76 : else if (sym->ns->proc_name->attr.flavor != FL_MODULE)
2228 6 : gfc_add_decl_to_parent_function (decl);
2229 :
2230 628 : sym->backend_decl = decl;
2231 :
2232 : /* If a variable is USE associated, it's always external. */
2233 628 : if (sym->attr.use_assoc)
2234 : {
2235 0 : DECL_EXTERNAL (decl) = 1;
2236 0 : TREE_PUBLIC (decl) = 1;
2237 : }
2238 628 : else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE)
2239 : {
2240 : /* This is the declaration of a module variable. */
2241 70 : TREE_PUBLIC (decl) = 1;
2242 70 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
2243 : {
2244 8 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
2245 8 : DECL_VISIBILITY_SPECIFIED (decl) = true;
2246 : }
2247 70 : TREE_STATIC (decl) = 1;
2248 : }
2249 :
2250 628 : if (!sym->attr.use_assoc
2251 628 : && (sym->attr.save != SAVE_NONE || sym->attr.data
2252 491 : || (sym->value && sym->ns->proc_name->attr.is_main_program)))
2253 137 : TREE_STATIC (decl) = 1;
2254 :
2255 628 : if (TREE_STATIC (decl) && sym->value)
2256 : {
2257 : /* Add static initializer. */
2258 97 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2259 97 : TREE_TYPE (decl),
2260 97 : sym->attr.dimension,
2261 : false, true);
2262 : }
2263 :
2264 628 : add_attributes_to_decl (&decl, sym);
2265 :
2266 : /* Handle threadprivate procedure pointers. */
2267 628 : if (sym->attr.threadprivate
2268 628 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
2269 12 : set_decl_tls_model (decl, decl_default_tls_model (decl));
2270 :
2271 628 : return decl;
2272 : }
2273 :
2274 : static void
2275 : create_function_arglist (gfc_symbol *sym);
2276 :
2277 : /* Get a basic decl for an external function. */
2278 :
2279 : tree
2280 36851 : gfc_get_extern_function_decl (gfc_symbol * sym, gfc_actual_arglist *actual_args,
2281 : const char *fnspec)
2282 : {
2283 36851 : tree type;
2284 36851 : tree fndecl;
2285 36851 : gfc_expr e;
2286 36851 : gfc_intrinsic_sym *isym;
2287 36851 : gfc_expr argexpr;
2288 36851 : char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */
2289 36851 : tree name;
2290 36851 : tree mangled_name;
2291 36851 : gfc_gsymbol *gsym;
2292 :
2293 36851 : if (sym->backend_decl)
2294 : return sym->backend_decl;
2295 :
2296 : /* We should never be creating external decls for alternate entry points.
2297 : The procedure may be an alternate entry point, but we don't want/need
2298 : to know that. */
2299 36851 : gcc_assert (!(sym->attr.entry || sym->attr.entry_master));
2300 :
2301 36851 : if (sym->attr.proc_pointer)
2302 707 : return get_proc_pointer_decl (sym);
2303 :
2304 : /* See if this is an external procedure from the same file. If so,
2305 : return the backend_decl. If we are looking at a BIND(C)
2306 : procedure and the symbol is not BIND(C), or vice versa, we
2307 : haven't found the right procedure. */
2308 :
2309 36144 : if (sym->binding_label)
2310 : {
2311 2603 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label);
2312 2603 : if (gsym && !gsym->bind_c)
2313 : gsym = NULL;
2314 : }
2315 33541 : else if (sym->module == NULL)
2316 : {
2317 20022 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name);
2318 20022 : if (gsym && gsym->bind_c)
2319 : gsym = NULL;
2320 : }
2321 : else
2322 : {
2323 : /* Procedure from a different module. */
2324 : gsym = NULL;
2325 : }
2326 :
2327 11016 : if (gsym && !gsym->defined)
2328 : gsym = NULL;
2329 :
2330 : /* This can happen because of C binding. */
2331 7880 : if (gsym && gsym->ns && gsym->ns->proc_name
2332 7880 : && gsym->ns->proc_name->attr.flavor == FL_MODULE)
2333 557 : goto module_sym;
2334 :
2335 35587 : if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL)
2336 25804 : && !sym->backend_decl
2337 25804 : && gsym && gsym->ns
2338 7323 : && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION))
2339 7323 : && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic))
2340 : {
2341 7323 : if (!gsym->ns->proc_name->backend_decl)
2342 : {
2343 : /* By construction, the external function cannot be
2344 : a contained procedure. */
2345 775 : location_t old_loc = input_location;
2346 775 : push_cfun (NULL);
2347 :
2348 775 : gfc_create_function_decl (gsym->ns, true);
2349 :
2350 775 : pop_cfun ();
2351 775 : input_location = old_loc;
2352 : }
2353 :
2354 : /* If the namespace has entries, the proc_name is the
2355 : entry master. Find the entry and use its backend_decl.
2356 : otherwise, use the proc_name backend_decl. */
2357 7323 : if (gsym->ns->entries)
2358 : {
2359 : gfc_entry_list *entry = gsym->ns->entries;
2360 :
2361 1409 : for (; entry; entry = entry->next)
2362 : {
2363 1409 : if (strcmp (gsym->name, entry->sym->name) == 0)
2364 : {
2365 859 : sym->backend_decl = entry->sym->backend_decl;
2366 859 : break;
2367 : }
2368 : }
2369 : }
2370 : else
2371 6464 : sym->backend_decl = gsym->ns->proc_name->backend_decl;
2372 :
2373 7323 : if (sym->backend_decl)
2374 : {
2375 : /* Avoid problems of double deallocation of the backend declaration
2376 : later in gfc_trans_use_stmts; cf. PR 45087. */
2377 7323 : if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc)
2378 0 : sym->attr.use_assoc = 0;
2379 :
2380 7323 : return sym->backend_decl;
2381 : }
2382 : }
2383 :
2384 : /* See if this is a module procedure from the same file. If so,
2385 : return the backend_decl. */
2386 28264 : if (sym->module)
2387 14389 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
2388 :
2389 28821 : module_sym:
2390 28821 : if (gsym && gsym->ns
2391 11572 : && (gsym->type == GSYM_MODULE
2392 557 : || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE)))
2393 : {
2394 11572 : gfc_symbol *s;
2395 :
2396 11572 : s = NULL;
2397 11572 : if (gsym->type == GSYM_MODULE)
2398 11015 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2399 : else
2400 557 : gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s);
2401 :
2402 11572 : if (s && s->backend_decl)
2403 : {
2404 9540 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
2405 1162 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
2406 : true);
2407 8378 : else if (sym->ts.type == BT_CHARACTER)
2408 411 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
2409 9540 : sym->backend_decl = s->backend_decl;
2410 9540 : return sym->backend_decl;
2411 : }
2412 : }
2413 :
2414 19281 : if (sym->attr.intrinsic)
2415 : {
2416 : /* Call the resolution function to get the actual name. This is
2417 : a nasty hack which relies on the resolution functions only looking
2418 : at the first argument. We pass NULL for the second argument
2419 : otherwise things like AINT get confused. */
2420 1292 : isym = gfc_find_function (sym->name);
2421 1292 : gcc_assert (isym->resolve.f0 != NULL);
2422 :
2423 1292 : memset (&e, 0, sizeof (e));
2424 1292 : e.expr_type = EXPR_FUNCTION;
2425 :
2426 1292 : memset (&argexpr, 0, sizeof (argexpr));
2427 1292 : gcc_assert (isym->formal);
2428 1292 : argexpr.ts = isym->formal->ts;
2429 :
2430 1292 : if (isym->formal->next == NULL)
2431 1045 : isym->resolve.f1 (&e, &argexpr);
2432 : else
2433 : {
2434 247 : if (isym->formal->next->next == NULL)
2435 231 : isym->resolve.f2 (&e, &argexpr, NULL);
2436 : else
2437 : {
2438 16 : if (isym->formal->next->next->next == NULL)
2439 0 : isym->resolve.f3 (&e, &argexpr, NULL, NULL);
2440 : else
2441 : {
2442 : /* All specific intrinsics take less than 5 arguments. */
2443 16 : gcc_assert (isym->formal->next->next->next->next == NULL);
2444 16 : isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL);
2445 : }
2446 : }
2447 : }
2448 :
2449 1292 : if (flag_f2c
2450 438 : && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind)
2451 300 : || e.ts.type == BT_COMPLEX))
2452 : {
2453 : /* Specific which needs a different implementation if f2c
2454 : calling conventions are used. */
2455 240 : sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name);
2456 : }
2457 : else
2458 1052 : sprintf (s, "_gfortran_specific%s", e.value.function.name);
2459 :
2460 1292 : name = get_identifier (s);
2461 1292 : mangled_name = name;
2462 : }
2463 : else
2464 : {
2465 17989 : name = gfc_sym_identifier (sym);
2466 17989 : mangled_name = gfc_sym_mangled_function_id (sym);
2467 : }
2468 :
2469 19281 : type = gfc_get_function_type (sym, actual_args, fnspec);
2470 :
2471 19281 : fndecl = build_decl (gfc_get_location (&sym->declared_at),
2472 : FUNCTION_DECL, name, type);
2473 :
2474 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2475 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2476 : the opposite of declaring a function as static in C). */
2477 19281 : DECL_EXTERNAL (fndecl) = 1;
2478 19281 : TREE_PUBLIC (fndecl) = 1;
2479 :
2480 19281 : add_attributes_to_decl (&fndecl, sym);
2481 :
2482 19281 : gfc_set_decl_assembler_name (fndecl, mangled_name);
2483 :
2484 : /* Set the context of this decl. */
2485 19281 : if (0 && sym->ns && sym->ns->proc_name)
2486 : {
2487 : /* TODO: Add external decls to the appropriate scope. */
2488 : DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl;
2489 : }
2490 : else
2491 : {
2492 : /* Global declaration, e.g. intrinsic subroutine. */
2493 19281 : DECL_CONTEXT (fndecl) = NULL_TREE;
2494 : }
2495 :
2496 : /* Set attributes for PURE functions. A call to PURE function in the
2497 : Fortran 95 sense is both pure and without side effects in the C
2498 : sense. */
2499 19281 : if (sym->attr.pure || sym->attr.implicit_pure)
2500 : {
2501 2084 : if (sym->attr.function && !gfc_return_by_reference (sym))
2502 1854 : DECL_PURE_P (fndecl) = 1;
2503 : /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT)
2504 : parameters and don't use alternate returns (is this
2505 : allowed?). In that case, calls to them are meaningless, and
2506 : can be optimized away. See also in build_function_decl(). */
2507 2084 : TREE_SIDE_EFFECTS (fndecl) = 0;
2508 : }
2509 :
2510 : /* Mark non-returning functions. */
2511 19281 : if (sym->attr.noreturn || sym->attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2512 111 : TREE_THIS_VOLATILE(fndecl) = 1;
2513 :
2514 19281 : sym->backend_decl = fndecl;
2515 :
2516 19281 : if (DECL_CONTEXT (fndecl) == NULL_TREE)
2517 19281 : pushdecl_top_level (fndecl);
2518 :
2519 19281 : if (sym->formal_ns
2520 17177 : && sym->formal_ns->proc_name == sym)
2521 : {
2522 17177 : if (sym->formal_ns->omp_declare_simd)
2523 15 : gfc_trans_omp_declare_simd (sym->formal_ns);
2524 17177 : if (flag_openmp)
2525 : {
2526 : // We need DECL_ARGUMENTS to put attributes on, in case some arguments
2527 : // need adjustment
2528 1812 : create_function_arglist (sym->formal_ns->proc_name);
2529 1812 : gfc_trans_omp_declare_variant (sym->formal_ns, sym->ns);
2530 : }
2531 : }
2532 :
2533 19281 : return fndecl;
2534 : }
2535 :
2536 :
2537 : /* Create a declaration for a procedure. For external functions (in the C
2538 : sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is
2539 : a master function with alternate entry points. */
2540 :
2541 : static void
2542 98365 : build_function_decl (gfc_symbol * sym, bool global)
2543 : {
2544 98365 : tree fndecl, type;
2545 98365 : symbol_attribute attr;
2546 98365 : tree result_decl;
2547 98365 : gfc_formal_arglist *f;
2548 :
2549 196730 : bool module_procedure = sym->attr.module_procedure
2550 446 : && sym->ns
2551 446 : && sym->ns->proc_name
2552 98811 : && sym->ns->proc_name->attr.flavor == FL_MODULE;
2553 :
2554 98365 : gcc_assert (!sym->attr.external || module_procedure);
2555 :
2556 98365 : if (sym->backend_decl)
2557 12295 : return;
2558 :
2559 : /* Set the line and filename. sym->declared_at seems to point to the
2560 : last statement for subroutines, but it'll do for now. */
2561 86070 : input_location = gfc_get_location (&sym->declared_at);
2562 :
2563 : /* Allow only one nesting level. Allow public declarations. */
2564 86070 : gcc_assert (current_function_decl == NULL_TREE
2565 : || DECL_FILE_SCOPE_P (current_function_decl)
2566 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2567 : == FUNCTION_DECL)
2568 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2569 : == NAMESPACE_DECL));
2570 :
2571 86070 : type = gfc_get_function_type (sym);
2572 86070 : fndecl = build_decl (input_location,
2573 : FUNCTION_DECL, gfc_sym_identifier (sym), type);
2574 :
2575 86070 : attr = sym->attr;
2576 :
2577 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2578 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2579 : the opposite of declaring a function as static in C). */
2580 86070 : DECL_EXTERNAL (fndecl) = 0;
2581 :
2582 86070 : if (sym->attr.access == ACCESS_UNKNOWN && sym->module
2583 24571 : && (sym->ns->default_access == ACCESS_PRIVATE
2584 22590 : || (sym->ns->default_access == ACCESS_UNKNOWN
2585 22577 : && flag_module_private)))
2586 1981 : sym->attr.access = ACCESS_PRIVATE;
2587 :
2588 86070 : if (!current_function_decl
2589 63098 : && !sym->attr.entry_master && !sym->attr.is_main_program
2590 36295 : && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label
2591 2171 : || sym->attr.public_used))
2592 35484 : TREE_PUBLIC (fndecl) = 1;
2593 :
2594 86070 : if (sym->attr.referenced || sym->attr.entry_master)
2595 39990 : TREE_USED (fndecl) = 1;
2596 :
2597 86070 : add_attributes_to_decl (&fndecl, sym);
2598 :
2599 : /* Figure out the return type of the declared function, and build a
2600 : RESULT_DECL for it. If this is a subroutine with alternate
2601 : returns, build a RESULT_DECL for it. */
2602 86070 : result_decl = NULL_TREE;
2603 : /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */
2604 86070 : if (sym->attr.function)
2605 : {
2606 16049 : if (gfc_return_by_reference (sym))
2607 3147 : type = void_type_node;
2608 : else
2609 : {
2610 12902 : if (sym->result != sym)
2611 6304 : result_decl = gfc_sym_identifier (sym->result);
2612 :
2613 12902 : type = TREE_TYPE (TREE_TYPE (fndecl));
2614 : }
2615 : }
2616 : else
2617 : {
2618 : /* Look for alternate return placeholders. */
2619 70021 : int has_alternate_returns = 0;
2620 148958 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2621 : {
2622 79006 : if (f->sym == NULL)
2623 : {
2624 : has_alternate_returns = 1;
2625 : break;
2626 : }
2627 : }
2628 :
2629 70021 : if (has_alternate_returns)
2630 69 : type = integer_type_node;
2631 : else
2632 69952 : type = void_type_node;
2633 : }
2634 :
2635 86070 : result_decl = build_decl (input_location,
2636 : RESULT_DECL, result_decl, type);
2637 86070 : DECL_ARTIFICIAL (result_decl) = 1;
2638 86070 : DECL_IGNORED_P (result_decl) = 1;
2639 86070 : DECL_CONTEXT (result_decl) = fndecl;
2640 86070 : DECL_RESULT (fndecl) = result_decl;
2641 :
2642 : /* Don't call layout_decl for a RESULT_DECL.
2643 : layout_decl (result_decl, 0); */
2644 :
2645 : /* TREE_STATIC means the function body is defined here. */
2646 86070 : TREE_STATIC (fndecl) = 1;
2647 :
2648 : /* Set attributes for PURE functions. A call to a PURE function in the
2649 : Fortran 95 sense is both pure and without side effects in the C
2650 : sense. */
2651 86070 : if (sym->attr.pure || sym->attr.implicit_pure)
2652 : {
2653 : /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments
2654 : including an alternate return. In that case it can also be
2655 : marked as PURE. See also in gfc_get_extern_function_decl(). */
2656 18953 : if (attr.function && !gfc_return_by_reference (sym))
2657 4513 : DECL_PURE_P (fndecl) = 1;
2658 18953 : TREE_SIDE_EFFECTS (fndecl) = 0;
2659 : }
2660 :
2661 : /* Mark noinline functions. */
2662 86070 : if (attr.ext_attr & (1 << EXT_ATTR_NOINLINE))
2663 1 : DECL_UNINLINABLE (fndecl) = 1;
2664 :
2665 : /* Mark noreturn functions. */
2666 86070 : if (attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2667 8 : TREE_THIS_VOLATILE (fndecl) = 1;
2668 :
2669 : /* Mark weak functions. */
2670 86070 : if (attr.ext_attr & (1 << EXT_ATTR_WEAK))
2671 6 : declare_weak (fndecl);
2672 :
2673 : /* Layout the function declaration and put it in the binding level
2674 : of the current function. */
2675 :
2676 86070 : if (global)
2677 778 : pushdecl_top_level (fndecl);
2678 : else
2679 85292 : pushdecl (fndecl);
2680 :
2681 : /* Perform name mangling if this is a top level or module procedure. */
2682 86070 : if (current_function_decl == NULL_TREE)
2683 63098 : gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym));
2684 :
2685 86070 : sym->backend_decl = fndecl;
2686 : }
2687 :
2688 :
2689 : /* Create the DECL_ARGUMENTS for a procedure.
2690 : NOTE: The arguments added here must match the argument type created by
2691 : gfc_get_function_type (). */
2692 :
2693 : static void
2694 87882 : create_function_arglist (gfc_symbol * sym)
2695 : {
2696 87882 : tree fndecl;
2697 87882 : gfc_formal_arglist *f;
2698 87882 : tree typelist, hidden_typelist, optval_typelist;
2699 87882 : tree arglist, hidden_arglist, optval_arglist;
2700 87882 : tree type;
2701 87882 : tree parm;
2702 :
2703 87882 : fndecl = sym->backend_decl;
2704 :
2705 : /* Build formal argument list. Make sure that their TREE_CONTEXT is
2706 : the new FUNCTION_DECL node. */
2707 87882 : arglist = NULL_TREE;
2708 87882 : hidden_arglist = NULL_TREE;
2709 87882 : optval_arglist = NULL_TREE;
2710 87882 : typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl));
2711 :
2712 87882 : if (sym->attr.entry_master)
2713 : {
2714 667 : type = TREE_VALUE (typelist);
2715 667 : parm = build_decl (input_location,
2716 : PARM_DECL, get_identifier ("__entry"), type);
2717 :
2718 667 : DECL_CONTEXT (parm) = fndecl;
2719 667 : DECL_ARG_TYPE (parm) = type;
2720 667 : TREE_READONLY (parm) = 1;
2721 667 : gfc_finish_decl (parm);
2722 667 : DECL_ARTIFICIAL (parm) = 1;
2723 :
2724 667 : arglist = chainon (arglist, parm);
2725 667 : typelist = TREE_CHAIN (typelist);
2726 : }
2727 :
2728 87882 : if (gfc_return_by_reference (sym))
2729 : {
2730 3189 : tree type = TREE_VALUE (typelist), length = NULL;
2731 :
2732 3189 : if (sym->ts.type == BT_CHARACTER)
2733 : {
2734 : /* Length of character result. */
2735 1638 : tree len_type = TREE_VALUE (TREE_CHAIN (typelist));
2736 :
2737 1638 : length = build_decl (input_location,
2738 : PARM_DECL,
2739 : get_identifier (".__result"),
2740 : len_type);
2741 1638 : if (POINTER_TYPE_P (len_type))
2742 : {
2743 281 : sym->ts.u.cl->passed_length = length;
2744 281 : TREE_USED (length) = 1;
2745 : }
2746 1357 : else if (!sym->ts.u.cl->length)
2747 : {
2748 157 : sym->ts.u.cl->backend_decl = length;
2749 157 : TREE_USED (length) = 1;
2750 : }
2751 1638 : gcc_assert (TREE_CODE (length) == PARM_DECL);
2752 1638 : DECL_CONTEXT (length) = fndecl;
2753 1638 : DECL_ARG_TYPE (length) = len_type;
2754 1638 : TREE_READONLY (length) = 1;
2755 1638 : DECL_ARTIFICIAL (length) = 1;
2756 1638 : gfc_finish_decl (length);
2757 1638 : if (sym->ts.u.cl->backend_decl == NULL
2758 634 : || sym->ts.u.cl->backend_decl == length)
2759 : {
2760 1161 : gfc_symbol *arg;
2761 1161 : tree backend_decl;
2762 :
2763 1161 : if (sym->ts.u.cl->backend_decl == NULL)
2764 : {
2765 1004 : tree len = build_decl (input_location,
2766 : VAR_DECL,
2767 : get_identifier ("..__result"),
2768 : gfc_charlen_type_node);
2769 1004 : DECL_ARTIFICIAL (len) = 1;
2770 1004 : TREE_USED (len) = 1;
2771 1004 : sym->ts.u.cl->backend_decl = len;
2772 : }
2773 :
2774 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2775 1161 : arg = sym->result ? sym->result : sym;
2776 1161 : backend_decl = arg->backend_decl;
2777 : /* Temporary clear it, so that gfc_sym_type creates complete
2778 : type. */
2779 1161 : arg->backend_decl = NULL;
2780 1161 : type = gfc_sym_type (arg);
2781 1161 : arg->backend_decl = backend_decl;
2782 1161 : type = build_reference_type (type);
2783 : }
2784 : }
2785 :
2786 3189 : parm = build_decl (input_location,
2787 : PARM_DECL, get_identifier ("__result"), type);
2788 :
2789 3189 : DECL_CONTEXT (parm) = fndecl;
2790 3189 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
2791 3189 : TREE_READONLY (parm) = 1;
2792 3189 : DECL_ARTIFICIAL (parm) = 1;
2793 3189 : gfc_finish_decl (parm);
2794 :
2795 3189 : arglist = chainon (arglist, parm);
2796 3189 : typelist = TREE_CHAIN (typelist);
2797 :
2798 3189 : if (sym->ts.type == BT_CHARACTER)
2799 : {
2800 1638 : gfc_allocate_lang_decl (parm);
2801 1638 : arglist = chainon (arglist, length);
2802 1638 : typelist = TREE_CHAIN (typelist);
2803 : }
2804 : }
2805 :
2806 87882 : hidden_typelist = typelist;
2807 191610 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2808 103728 : if (f->sym != NULL) /* Ignore alternate returns. */
2809 103629 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2810 :
2811 : /* Advance hidden_typelist over optional+value argument presence flags. */
2812 87882 : optval_typelist = hidden_typelist;
2813 191610 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2814 103728 : if (f->sym != NULL
2815 103629 : && f->sym->attr.optional && f->sym->attr.value
2816 512 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2817 512 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2818 :
2819 191610 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2820 : {
2821 103728 : char name[GFC_MAX_SYMBOL_LEN + 2];
2822 :
2823 : /* Ignore alternate returns. */
2824 103728 : if (f->sym == NULL)
2825 99 : continue;
2826 :
2827 103629 : type = TREE_VALUE (typelist);
2828 :
2829 103629 : if (f->sym->ts.type == BT_CHARACTER
2830 9553 : && (!sym->attr.is_bind_c || sym->attr.entry_master))
2831 : {
2832 8231 : tree len_type = TREE_VALUE (hidden_typelist);
2833 8231 : tree length = NULL_TREE;
2834 8231 : if (!f->sym->ts.deferred)
2835 7363 : gcc_assert (len_type == gfc_charlen_type_node);
2836 : else
2837 868 : gcc_assert (POINTER_TYPE_P (len_type));
2838 :
2839 8231 : strcpy (&name[1], f->sym->name);
2840 8231 : name[0] = '_';
2841 8231 : length = build_decl (input_location,
2842 : PARM_DECL, get_identifier (name), len_type);
2843 :
2844 8231 : hidden_arglist = chainon (hidden_arglist, length);
2845 8231 : DECL_CONTEXT (length) = fndecl;
2846 8231 : DECL_ARTIFICIAL (length) = 1;
2847 8231 : DECL_ARG_TYPE (length) = len_type;
2848 8231 : TREE_READONLY (length) = 1;
2849 8231 : gfc_finish_decl (length);
2850 :
2851 : /* Marking the length DECL_HIDDEN_STRING_LENGTH will lead
2852 : to tail calls being disabled. Only do that if we
2853 : potentially have broken callers. */
2854 8231 : if (flag_tail_call_workaround
2855 8231 : && f->sym->ts.u.cl
2856 7711 : && f->sym->ts.u.cl->length
2857 2616 : && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT
2858 2351 : && (flag_tail_call_workaround == 2
2859 2351 : || f->sym->ns->implicit_interface_calls))
2860 84 : DECL_HIDDEN_STRING_LENGTH (length) = 1;
2861 :
2862 : /* Remember the passed value. */
2863 8231 : if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length)
2864 : {
2865 : /* This can happen if the same type is used for multiple
2866 : arguments. We need to copy cl as otherwise
2867 : cl->passed_length gets overwritten. */
2868 622 : f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl);
2869 : }
2870 8231 : f->sym->ts.u.cl->passed_length = length;
2871 :
2872 : /* Use the passed value for assumed length variables. */
2873 8231 : if (!f->sym->ts.u.cl->length)
2874 : {
2875 5615 : TREE_USED (length) = 1;
2876 5615 : gcc_assert (!f->sym->ts.u.cl->backend_decl);
2877 5615 : f->sym->ts.u.cl->backend_decl = length;
2878 : }
2879 :
2880 8231 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2881 :
2882 8231 : if (f->sym->ts.u.cl->backend_decl == NULL
2883 7933 : || f->sym->ts.u.cl->backend_decl == length)
2884 : {
2885 5913 : if (POINTER_TYPE_P (len_type))
2886 768 : f->sym->ts.u.cl->backend_decl
2887 768 : = build_fold_indirect_ref_loc (input_location, length);
2888 5145 : else if (f->sym->ts.u.cl->backend_decl == NULL)
2889 298 : gfc_create_string_length (f->sym);
2890 :
2891 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2892 5913 : if (f->sym->attr.flavor == FL_PROCEDURE)
2893 14 : type = build_pointer_type (gfc_get_function_type (f->sym));
2894 : else
2895 5899 : type = gfc_sym_type (f->sym);
2896 : }
2897 : }
2898 : /* For scalar intrinsic types or derived types, VALUE passes the value,
2899 : hence, the optional status cannot be transferred via a NULL pointer.
2900 : Thus, we will use a hidden argument in that case. */
2901 103629 : if (f->sym->attr.optional && f->sym->attr.value
2902 512 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2903 : {
2904 512 : tree tmp;
2905 512 : strcpy (&name[1], f->sym->name);
2906 512 : name[0] = '.';
2907 512 : tmp = build_decl (input_location,
2908 : PARM_DECL, get_identifier (name),
2909 : boolean_type_node);
2910 :
2911 512 : optval_arglist = chainon (optval_arglist, tmp);
2912 512 : DECL_CONTEXT (tmp) = fndecl;
2913 512 : DECL_ARTIFICIAL (tmp) = 1;
2914 512 : DECL_ARG_TYPE (tmp) = boolean_type_node;
2915 512 : TREE_READONLY (tmp) = 1;
2916 512 : gfc_finish_decl (tmp);
2917 :
2918 : /* The presence flag must be boolean. */
2919 512 : gcc_assert (TREE_VALUE (optval_typelist) == boolean_type_node);
2920 512 : optval_typelist = TREE_CHAIN (optval_typelist);
2921 : }
2922 :
2923 : /* For non-constant length array arguments, make sure they use
2924 : a different type node from TYPE_ARG_TYPES type. */
2925 103629 : if (f->sym->attr.dimension
2926 22889 : && type == TREE_VALUE (typelist)
2927 21577 : && TREE_CODE (type) == POINTER_TYPE
2928 9808 : && GFC_ARRAY_TYPE_P (type)
2929 7960 : && f->sym->as->type != AS_ASSUMED_SIZE
2930 109779 : && ! COMPLETE_TYPE_P (TREE_TYPE (type)))
2931 : {
2932 2618 : if (f->sym->attr.flavor == FL_PROCEDURE)
2933 0 : type = build_pointer_type (gfc_get_function_type (f->sym));
2934 : else
2935 2618 : type = gfc_sym_type (f->sym);
2936 : }
2937 :
2938 103629 : if (f->sym->attr.proc_pointer)
2939 146 : type = build_pointer_type (type);
2940 :
2941 103629 : if (f->sym->attr.volatile_)
2942 5 : type = build_qualified_type (type, TYPE_QUAL_VOLATILE);
2943 :
2944 : /* Build the argument declaration. For C descriptors, we use a
2945 : '_'-prefixed name for the parm_decl and inside the proc the
2946 : sym->name. */
2947 103629 : tree parm_name;
2948 103629 : if (sym->attr.is_bind_c && is_CFI_desc (f->sym, NULL))
2949 : {
2950 1819 : strcpy (&name[1], f->sym->name);
2951 1819 : name[0] = '_';
2952 1819 : parm_name = get_identifier (name);
2953 : }
2954 : else
2955 101810 : parm_name = gfc_sym_identifier (f->sym);
2956 103629 : parm = build_decl (input_location, PARM_DECL, parm_name, type);
2957 :
2958 103629 : if (f->sym->attr.volatile_)
2959 : {
2960 5 : TREE_THIS_VOLATILE (parm) = 1;
2961 5 : TREE_SIDE_EFFECTS (parm) = 1;
2962 : }
2963 :
2964 : /* Fill in arg stuff. */
2965 103629 : DECL_CONTEXT (parm) = fndecl;
2966 103629 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
2967 : /* All implementation args except for VALUE are read-only. */
2968 103629 : if (!f->sym->attr.value)
2969 94698 : TREE_READONLY (parm) = 1;
2970 103629 : if (POINTER_TYPE_P (type)
2971 95376 : && (!f->sym->attr.proc_pointer
2972 95230 : && f->sym->attr.flavor != FL_PROCEDURE))
2973 94448 : DECL_BY_REFERENCE (parm) = 1;
2974 103629 : if (f->sym->attr.optional)
2975 : {
2976 6095 : gfc_allocate_lang_decl (parm);
2977 6095 : GFC_DECL_OPTIONAL_ARGUMENT (parm) = 1;
2978 : }
2979 :
2980 103629 : gfc_finish_decl (parm);
2981 103629 : gfc_finish_decl_attrs (parm, &f->sym->attr);
2982 :
2983 103629 : f->sym->backend_decl = parm;
2984 :
2985 : /* Coarrays which are descriptorless or assumed-shape pass with
2986 : -fcoarray=lib the token and the offset as hidden arguments. */
2987 103629 : if (flag_coarray == GFC_FCOARRAY_LIB
2988 6899 : && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension
2989 1526 : && !f->sym->attr.allocatable)
2990 5395 : || (f->sym->ts.type == BT_CLASS
2991 27 : && CLASS_DATA (f->sym)->attr.codimension
2992 22 : && !CLASS_DATA (f->sym)->attr.allocatable)))
2993 : {
2994 1522 : tree caf_type;
2995 1522 : tree token;
2996 1522 : tree offset;
2997 :
2998 1522 : gcc_assert (f->sym->backend_decl != NULL_TREE
2999 : && !sym->attr.is_bind_c);
3000 1522 : caf_type = f->sym->ts.type == BT_CLASS
3001 1522 : ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl)
3002 1504 : : TREE_TYPE (f->sym->backend_decl);
3003 :
3004 1522 : token = build_decl (input_location, PARM_DECL,
3005 : create_tmp_var_name ("caf_token"),
3006 : build_qualified_type (pvoid_type_node,
3007 : TYPE_QUAL_RESTRICT));
3008 1522 : if ((f->sym->ts.type != BT_CLASS
3009 1504 : && f->sym->as->type != AS_DEFERRED)
3010 18 : || (f->sym->ts.type == BT_CLASS
3011 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3012 : {
3013 1522 : gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL
3014 : || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE);
3015 1522 : if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL)
3016 1517 : gfc_allocate_lang_decl (f->sym->backend_decl);
3017 1522 : GFC_DECL_TOKEN (f->sym->backend_decl) = token;
3018 : }
3019 : else
3020 : {
3021 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE);
3022 0 : GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token;
3023 : }
3024 :
3025 1522 : DECL_CONTEXT (token) = fndecl;
3026 1522 : DECL_ARTIFICIAL (token) = 1;
3027 1522 : DECL_ARG_TYPE (token) = TREE_VALUE (typelist);
3028 1522 : TREE_READONLY (token) = 1;
3029 1522 : hidden_arglist = chainon (hidden_arglist, token);
3030 1522 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3031 1522 : gfc_finish_decl (token);
3032 :
3033 1522 : offset = build_decl (input_location, PARM_DECL,
3034 : create_tmp_var_name ("caf_offset"),
3035 : gfc_array_index_type);
3036 :
3037 1522 : if ((f->sym->ts.type != BT_CLASS
3038 1504 : && f->sym->as->type != AS_DEFERRED)
3039 18 : || (f->sym->ts.type == BT_CLASS
3040 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3041 : {
3042 1522 : gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl)
3043 : == NULL_TREE);
3044 1522 : GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset;
3045 : }
3046 : else
3047 : {
3048 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE);
3049 0 : GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset;
3050 : }
3051 1522 : DECL_CONTEXT (offset) = fndecl;
3052 1522 : DECL_ARTIFICIAL (offset) = 1;
3053 1522 : DECL_ARG_TYPE (offset) = TREE_VALUE (typelist);
3054 1522 : TREE_READONLY (offset) = 1;
3055 1522 : hidden_arglist = chainon (hidden_arglist, offset);
3056 1522 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3057 1522 : gfc_finish_decl (offset);
3058 : }
3059 :
3060 103629 : arglist = chainon (arglist, parm);
3061 103629 : typelist = TREE_CHAIN (typelist);
3062 : }
3063 :
3064 : /* Add hidden present status for optional+value arguments. */
3065 87882 : arglist = chainon (arglist, optval_arglist);
3066 :
3067 : /* Add the hidden string length parameters, unless the procedure
3068 : is bind(C). */
3069 87882 : if (!sym->attr.is_bind_c)
3070 85722 : arglist = chainon (arglist, hidden_arglist);
3071 :
3072 175764 : gcc_assert (hidden_typelist == NULL_TREE
3073 : || TREE_VALUE (hidden_typelist) == void_type_node);
3074 87882 : DECL_ARGUMENTS (fndecl) = arglist;
3075 87882 : }
3076 :
3077 : /* Do the setup necessary before generating the body of a function. */
3078 :
3079 : static void
3080 86070 : trans_function_start (gfc_symbol * sym)
3081 : {
3082 86070 : tree fndecl;
3083 :
3084 86070 : fndecl = sym->backend_decl;
3085 :
3086 : /* Let GCC know the current scope is this function. */
3087 86070 : current_function_decl = fndecl;
3088 :
3089 : /* Let the world know what we're about to do. */
3090 86070 : announce_function (fndecl);
3091 :
3092 86070 : if (DECL_FILE_SCOPE_P (fndecl))
3093 : {
3094 : /* Create RTL for function declaration. */
3095 37473 : rest_of_decl_compilation (fndecl, 1, 0);
3096 : }
3097 :
3098 : /* Create RTL for function definition. */
3099 86070 : make_decl_rtl (fndecl);
3100 :
3101 86070 : allocate_struct_function (fndecl, false);
3102 :
3103 : /* function.cc requires a push at the start of the function. */
3104 86070 : pushlevel ();
3105 86070 : }
3106 :
3107 : /* Create thunks for alternate entry points. */
3108 :
3109 : static void
3110 667 : build_entry_thunks (gfc_namespace * ns, bool global)
3111 : {
3112 667 : gfc_formal_arglist *formal;
3113 667 : gfc_formal_arglist *thunk_formal;
3114 667 : gfc_entry_list *el;
3115 667 : gfc_symbol *thunk_sym;
3116 667 : stmtblock_t body;
3117 667 : tree thunk_fndecl;
3118 667 : tree tmp;
3119 667 : location_t old_loc;
3120 :
3121 : /* This should always be a toplevel function. */
3122 667 : gcc_assert (current_function_decl == NULL_TREE);
3123 :
3124 667 : old_loc = input_location;
3125 2079 : for (el = ns->entries; el; el = el->next)
3126 : {
3127 1412 : vec<tree, va_gc> *args = NULL;
3128 1412 : vec<tree, va_gc> *string_args = NULL;
3129 :
3130 1412 : thunk_sym = el->sym;
3131 :
3132 1412 : build_function_decl (thunk_sym, global);
3133 1412 : create_function_arglist (thunk_sym);
3134 :
3135 1412 : trans_function_start (thunk_sym);
3136 :
3137 1412 : thunk_fndecl = thunk_sym->backend_decl;
3138 :
3139 1412 : gfc_init_block (&body);
3140 :
3141 : /* Pass extra parameter identifying this entry point. */
3142 1412 : tmp = build_int_cst (gfc_array_index_type, el->id);
3143 1412 : vec_safe_push (args, tmp);
3144 :
3145 : /* When the master returns by reference, pass the result reference
3146 : and (for CHARACTER) the string length to the master call. If the
3147 : thunk itself also returns by reference these are forwarded from
3148 : its own argument list; otherwise (bind(c) CHARACTER entry) we
3149 : create local temporaries and load the value after the call. */
3150 1412 : tree result_ref = NULL_TREE;
3151 1412 : if (thunk_sym->attr.function
3152 1412 : && gfc_return_by_reference (ns->proc_name))
3153 : {
3154 300 : if (gfc_return_by_reference (thunk_sym))
3155 : {
3156 276 : tree ref = DECL_ARGUMENTS (current_function_decl);
3157 276 : vec_safe_push (args, ref);
3158 276 : if (ns->proc_name->ts.type == BT_CHARACTER)
3159 160 : vec_safe_push (args, DECL_CHAIN (ref));
3160 : }
3161 : else
3162 : {
3163 : /* The thunk is bind(c) and returns CHARACTER by value, but
3164 : the master returns by reference. Create a local buffer
3165 : and length to pass to the master call. */
3166 24 : tree chartype = gfc_get_char_type (thunk_sym->ts.kind);
3167 24 : tree len;
3168 :
3169 24 : if (thunk_sym->ts.u.cl && thunk_sym->ts.u.cl->length)
3170 : {
3171 24 : gfc_se se;
3172 24 : gfc_init_se (&se, NULL);
3173 24 : gfc_conv_expr (&se, thunk_sym->ts.u.cl->length);
3174 24 : gfc_add_block_to_block (&body, &se.pre);
3175 24 : len = se.expr;
3176 24 : gfc_add_block_to_block (&body, &se.post);
3177 24 : }
3178 : else
3179 0 : len = build_int_cst (gfc_charlen_type_node, 1);
3180 :
3181 24 : result_ref = build_decl (input_location, VAR_DECL,
3182 : get_identifier ("__entry_result"),
3183 : build_array_type (chartype,
3184 : build_range_type (gfc_array_index_type,
3185 : gfc_index_one_node,
3186 : fold_convert (gfc_array_index_type,
3187 : len))));
3188 24 : DECL_ARTIFICIAL (result_ref) = 1;
3189 24 : TREE_USED (result_ref) = 1;
3190 24 : DECL_CONTEXT (result_ref) = current_function_decl;
3191 24 : layout_decl (result_ref, 0);
3192 24 : pushdecl (result_ref);
3193 :
3194 48 : vec_safe_push (args,
3195 24 : build_fold_addr_expr_loc (input_location,
3196 : result_ref));
3197 24 : vec_safe_push (args, len);
3198 : }
3199 : }
3200 :
3201 2977 : for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal;
3202 1565 : formal = formal->next)
3203 : {
3204 : /* Ignore alternate returns. */
3205 1565 : if (formal->sym == NULL)
3206 36 : continue;
3207 :
3208 : /* We don't have a clever way of identifying arguments, so resort to
3209 : a brute-force search. */
3210 1529 : for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym);
3211 2697 : thunk_formal;
3212 1168 : thunk_formal = thunk_formal->next)
3213 : {
3214 2257 : if (thunk_formal->sym == formal->sym)
3215 : break;
3216 : }
3217 :
3218 1529 : if (thunk_formal)
3219 : {
3220 : /* Pass the argument. */
3221 1089 : DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1;
3222 1089 : vec_safe_push (args, thunk_formal->sym->backend_decl);
3223 1089 : if (formal->sym->ts.type == BT_CHARACTER)
3224 : {
3225 94 : tmp = thunk_formal->sym->ts.u.cl->backend_decl;
3226 94 : vec_safe_push (string_args, tmp);
3227 : }
3228 : }
3229 : else
3230 : {
3231 : /* Pass NULL for a missing argument. */
3232 440 : vec_safe_push (args, null_pointer_node);
3233 440 : if (formal->sym->ts.type == BT_CHARACTER)
3234 : {
3235 38 : tmp = build_int_cst (gfc_charlen_type_node, 0);
3236 38 : vec_safe_push (string_args, tmp);
3237 : }
3238 : }
3239 : }
3240 :
3241 : /* Call the master function. */
3242 1412 : vec_safe_splice (args, string_args);
3243 1412 : tmp = ns->proc_name->backend_decl;
3244 1412 : tmp = build_call_expr_loc_vec (input_location, tmp, args);
3245 1412 : if (result_ref != NULL_TREE)
3246 : {
3247 : /* The master returns by reference (void) but the bind(c) thunk
3248 : returns CHARACTER by value. Execute the master call, then
3249 : load the first character from the local buffer. */
3250 24 : gfc_add_expr_to_block (&body, tmp);
3251 24 : tmp = build4_loc (input_location, ARRAY_REF,
3252 24 : TREE_TYPE (TREE_TYPE (result_ref)),
3253 : result_ref, gfc_index_one_node,
3254 : NULL_TREE, NULL_TREE);
3255 24 : tmp = fold_convert (TREE_TYPE (DECL_RESULT (current_function_decl)),
3256 : tmp);
3257 24 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3258 24 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3259 24 : DECL_RESULT (current_function_decl), tmp);
3260 24 : tmp = build1_v (RETURN_EXPR, tmp);
3261 : }
3262 1388 : else if (ns->proc_name->attr.mixed_entry_master)
3263 : {
3264 214 : tree union_decl, field;
3265 214 : tree master_type = TREE_TYPE (ns->proc_name->backend_decl);
3266 :
3267 214 : union_decl = build_decl (input_location,
3268 : VAR_DECL, get_identifier ("__result"),
3269 214 : TREE_TYPE (master_type));
3270 214 : DECL_ARTIFICIAL (union_decl) = 1;
3271 214 : DECL_EXTERNAL (union_decl) = 0;
3272 214 : TREE_PUBLIC (union_decl) = 0;
3273 214 : TREE_USED (union_decl) = 1;
3274 214 : layout_decl (union_decl, 0);
3275 214 : pushdecl (union_decl);
3276 :
3277 214 : DECL_CONTEXT (union_decl) = current_function_decl;
3278 214 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3279 214 : TREE_TYPE (union_decl), union_decl, tmp);
3280 214 : gfc_add_expr_to_block (&body, tmp);
3281 :
3282 214 : for (field = TYPE_FIELDS (TREE_TYPE (union_decl));
3283 348 : field; field = DECL_CHAIN (field))
3284 348 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3285 348 : thunk_sym->result->name) == 0)
3286 : break;
3287 0 : gcc_assert (field != NULL_TREE);
3288 214 : tmp = fold_build3_loc (input_location, COMPONENT_REF,
3289 214 : TREE_TYPE (field), union_decl, field,
3290 : NULL_TREE);
3291 214 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3292 214 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3293 214 : DECL_RESULT (current_function_decl), tmp);
3294 214 : tmp = build1_v (RETURN_EXPR, tmp);
3295 : }
3296 1174 : else if (TREE_TYPE (DECL_RESULT (current_function_decl))
3297 1174 : != void_type_node)
3298 : {
3299 705 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3300 705 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3301 705 : DECL_RESULT (current_function_decl), tmp);
3302 705 : tmp = build1_v (RETURN_EXPR, tmp);
3303 : }
3304 1412 : gfc_add_expr_to_block (&body, tmp);
3305 :
3306 : /* Finish off this function and send it for code generation. */
3307 1412 : DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body);
3308 1412 : tmp = getdecls ();
3309 1412 : poplevel (1, 1);
3310 1412 : BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl;
3311 2824 : DECL_SAVED_TREE (thunk_fndecl)
3312 2824 : = fold_build3_loc (DECL_SOURCE_LOCATION (thunk_fndecl), BIND_EXPR,
3313 1412 : void_type_node, tmp, DECL_SAVED_TREE (thunk_fndecl),
3314 1412 : DECL_INITIAL (thunk_fndecl));
3315 :
3316 : /* Output the GENERIC tree. */
3317 1412 : dump_function (TDI_original, thunk_fndecl);
3318 :
3319 : /* Store the end of the function, so that we get good line number
3320 : info for the epilogue. */
3321 1412 : cfun->function_end_locus = input_location;
3322 :
3323 : /* We're leaving the context of this function, so zap cfun.
3324 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
3325 : tree_rest_of_compilation. */
3326 1412 : set_cfun (NULL);
3327 :
3328 1412 : current_function_decl = NULL_TREE;
3329 :
3330 1412 : cgraph_node::finalize_function (thunk_fndecl, true);
3331 :
3332 : /* We share the symbols in the formal argument list with other entry
3333 : points and the master function. Clear them so that they are
3334 : recreated for each function. */
3335 2546 : for (formal = gfc_sym_get_dummy_args (thunk_sym); formal;
3336 1134 : formal = formal->next)
3337 1134 : if (formal->sym != NULL) /* Ignore alternate returns. */
3338 : {
3339 1089 : formal->sym->backend_decl = NULL_TREE;
3340 1089 : if (formal->sym->ts.type == BT_CHARACTER)
3341 94 : formal->sym->ts.u.cl->backend_decl = NULL_TREE;
3342 : }
3343 :
3344 1412 : if (thunk_sym->attr.function)
3345 : {
3346 1194 : if (thunk_sym->ts.type == BT_CHARACTER)
3347 186 : thunk_sym->ts.u.cl->backend_decl = NULL_TREE;
3348 1194 : if (thunk_sym->result->ts.type == BT_CHARACTER)
3349 186 : thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE;
3350 : }
3351 : }
3352 :
3353 667 : input_location = old_loc;
3354 667 : }
3355 :
3356 :
3357 : /* Create a decl for a function, and create any thunks for alternate entry
3358 : points. If global is true, generate the function in the global binding
3359 : level, otherwise in the current binding level (which can be global). */
3360 :
3361 : void
3362 84658 : gfc_create_function_decl (gfc_namespace * ns, bool global)
3363 : {
3364 : /* Create a declaration for the master function. */
3365 84658 : build_function_decl (ns->proc_name, global);
3366 :
3367 : /* Compile the entry thunks. */
3368 84658 : if (ns->entries)
3369 667 : build_entry_thunks (ns, global);
3370 :
3371 : /* Now create the read argument list. */
3372 84658 : create_function_arglist (ns->proc_name);
3373 :
3374 84658 : if (ns->omp_declare_simd)
3375 94 : gfc_trans_omp_declare_simd (ns);
3376 :
3377 : /* Handle 'declare variant' directives. The applicable directives might
3378 : be declared in a parent namespace, so this needs to be called even if
3379 : there are no local directives. */
3380 84658 : if (flag_openmp)
3381 8658 : gfc_trans_omp_declare_variant (ns, NULL);
3382 84658 : }
3383 :
3384 : /* Return the decl used to hold the function return value. If
3385 : parent_flag is set, the context is the parent_scope. */
3386 :
3387 : tree
3388 12923 : gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag)
3389 : {
3390 12923 : tree decl;
3391 12923 : tree length;
3392 12923 : tree this_fake_result_decl;
3393 12923 : tree this_function_decl;
3394 :
3395 12923 : char name[GFC_MAX_SYMBOL_LEN + 10];
3396 :
3397 12923 : if (parent_flag)
3398 : {
3399 167 : this_fake_result_decl = parent_fake_result_decl;
3400 167 : this_function_decl = DECL_CONTEXT (current_function_decl);
3401 : }
3402 : else
3403 : {
3404 12756 : this_fake_result_decl = current_fake_result_decl;
3405 12756 : this_function_decl = current_function_decl;
3406 : }
3407 :
3408 12923 : if (sym
3409 12873 : && sym->ns->proc_name->backend_decl == this_function_decl
3410 4863 : && sym->ns->proc_name->attr.entry_master
3411 2392 : && sym != sym->ns->proc_name)
3412 : {
3413 1480 : tree t = NULL, var;
3414 1480 : if (this_fake_result_decl != NULL)
3415 1452 : for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t))
3416 1071 : if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0)
3417 : break;
3418 958 : if (t)
3419 577 : return TREE_VALUE (t);
3420 903 : decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag);
3421 :
3422 903 : if (parent_flag)
3423 14 : this_fake_result_decl = parent_fake_result_decl;
3424 : else
3425 889 : this_fake_result_decl = current_fake_result_decl;
3426 :
3427 903 : if (decl && sym->ns->proc_name->attr.mixed_entry_master)
3428 : {
3429 214 : tree field;
3430 :
3431 214 : for (field = TYPE_FIELDS (TREE_TYPE (decl));
3432 348 : field; field = DECL_CHAIN (field))
3433 348 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3434 : sym->name) == 0)
3435 : break;
3436 :
3437 214 : gcc_assert (field != NULL_TREE);
3438 214 : decl = fold_build3_loc (input_location, COMPONENT_REF,
3439 214 : TREE_TYPE (field), decl, field, NULL_TREE);
3440 : }
3441 :
3442 903 : var = create_tmp_var_raw (TREE_TYPE (decl), sym->name);
3443 903 : if (parent_flag)
3444 14 : gfc_add_decl_to_parent_function (var);
3445 : else
3446 889 : gfc_add_decl_to_function (var);
3447 :
3448 903 : SET_DECL_VALUE_EXPR (var, decl);
3449 903 : DECL_HAS_VALUE_EXPR_P (var) = 1;
3450 903 : GFC_DECL_RESULT (var) = 1;
3451 :
3452 903 : TREE_CHAIN (this_fake_result_decl)
3453 903 : = tree_cons (get_identifier (sym->name), var,
3454 903 : TREE_CHAIN (this_fake_result_decl));
3455 903 : return var;
3456 : }
3457 :
3458 11443 : if (this_fake_result_decl != NULL_TREE)
3459 4002 : return TREE_VALUE (this_fake_result_decl);
3460 :
3461 : /* Only when gfc_get_fake_result_decl is called by gfc_trans_return,
3462 : sym is NULL. */
3463 7441 : if (!sym)
3464 : return NULL_TREE;
3465 :
3466 7441 : if (sym->ts.type == BT_CHARACTER)
3467 : {
3468 845 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
3469 0 : length = gfc_create_string_length (sym);
3470 : else
3471 : length = sym->ts.u.cl->backend_decl;
3472 845 : if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE)
3473 514 : gfc_add_decl_to_function (length);
3474 : }
3475 :
3476 7441 : if (gfc_return_by_reference (sym))
3477 : {
3478 1606 : decl = DECL_ARGUMENTS (this_function_decl);
3479 :
3480 1606 : if (sym->ns->proc_name->backend_decl == this_function_decl
3481 405 : && sym->ns->proc_name->attr.entry_master)
3482 85 : decl = DECL_CHAIN (decl);
3483 :
3484 1606 : TREE_USED (decl) = 1;
3485 1606 : if (sym->as)
3486 807 : decl = gfc_build_dummy_array_decl (sym, decl);
3487 : }
3488 : else
3489 : {
3490 11670 : sprintf (name, "__result_%.20s",
3491 5835 : IDENTIFIER_POINTER (DECL_NAME (this_function_decl)));
3492 :
3493 5835 : if (!sym->attr.mixed_entry_master && sym->attr.function)
3494 5694 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3495 : VAR_DECL, get_identifier (name),
3496 : gfc_sym_type (sym));
3497 : else
3498 141 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3499 : VAR_DECL, get_identifier (name),
3500 141 : TREE_TYPE (TREE_TYPE (this_function_decl)));
3501 5835 : DECL_ARTIFICIAL (decl) = 1;
3502 5835 : DECL_EXTERNAL (decl) = 0;
3503 5835 : TREE_PUBLIC (decl) = 0;
3504 5835 : TREE_USED (decl) = 1;
3505 5835 : GFC_DECL_RESULT (decl) = 1;
3506 5835 : TREE_ADDRESSABLE (decl) = 1;
3507 :
3508 5835 : layout_decl (decl, 0);
3509 5835 : gfc_finish_decl_attrs (decl, &sym->attr);
3510 :
3511 5835 : if (parent_flag)
3512 27 : gfc_add_decl_to_parent_function (decl);
3513 : else
3514 5808 : gfc_add_decl_to_function (decl);
3515 : }
3516 :
3517 7441 : if (parent_flag)
3518 39 : parent_fake_result_decl = build_tree_list (NULL, decl);
3519 : else
3520 7402 : current_fake_result_decl = build_tree_list (NULL, decl);
3521 :
3522 7441 : if (sym->attr.assign)
3523 1 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl);
3524 :
3525 : return decl;
3526 : }
3527 :
3528 :
3529 : /* Builds a function decl. The remaining parameters are the types of the
3530 : function arguments. Negative nargs indicates a varargs function. */
3531 :
3532 : static tree
3533 4715643 : build_library_function_decl_1 (tree name, const char *spec,
3534 : tree rettype, int nargs, va_list p)
3535 : {
3536 4715643 : vec<tree, va_gc> *arglist;
3537 4715643 : tree fntype;
3538 4715643 : tree fndecl;
3539 4715643 : int n;
3540 :
3541 : /* Library functions must be declared with global scope. */
3542 4715643 : gcc_assert (current_function_decl == NULL_TREE);
3543 :
3544 : /* Create a list of the argument types. */
3545 4715643 : vec_alloc (arglist, abs (nargs));
3546 18759366 : for (n = abs (nargs); n > 0; n--)
3547 : {
3548 14043723 : tree argtype = va_arg (p, tree);
3549 14043723 : arglist->quick_push (argtype);
3550 : }
3551 :
3552 : /* Build the function type and decl. */
3553 4715643 : if (nargs >= 0)
3554 13515677 : fntype = build_function_type_vec (rettype, arglist);
3555 : else
3556 565632 : fntype = build_varargs_function_type_vec (rettype, arglist);
3557 4715643 : if (spec)
3558 : {
3559 2751906 : tree attr_args = build_tree_list (NULL_TREE,
3560 2751906 : build_string (strlen (spec), spec));
3561 2751906 : tree attrs = tree_cons (get_identifier ("fn spec"),
3562 2751906 : attr_args, TYPE_ATTRIBUTES (fntype));
3563 2751906 : fntype = build_type_attribute_variant (fntype, attrs);
3564 : }
3565 4715643 : fndecl = build_decl (input_location,
3566 : FUNCTION_DECL, name, fntype);
3567 :
3568 : /* Mark this decl as external. */
3569 4715643 : DECL_EXTERNAL (fndecl) = 1;
3570 4715643 : TREE_PUBLIC (fndecl) = 1;
3571 :
3572 4715643 : pushdecl (fndecl);
3573 :
3574 4715643 : rest_of_decl_compilation (fndecl, 1, 0);
3575 :
3576 4715643 : return fndecl;
3577 : }
3578 :
3579 : /* Builds a function decl. The remaining parameters are the types of the
3580 : function arguments. Negative nargs indicates a varargs function. */
3581 :
3582 : tree
3583 1963737 : gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...)
3584 : {
3585 1963737 : tree ret;
3586 1963737 : va_list args;
3587 1963737 : va_start (args, nargs);
3588 1963737 : ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args);
3589 1963737 : va_end (args);
3590 1963737 : return ret;
3591 : }
3592 :
3593 : /* Builds a function decl. The remaining parameters are the types of the
3594 : function arguments. Negative nargs indicates a varargs function.
3595 : The SPEC parameter specifies the function argument and return type
3596 : specification according to the fnspec function type attribute. */
3597 :
3598 : tree
3599 2751906 : gfc_build_library_function_decl_with_spec (tree name, const char *spec,
3600 : tree rettype, int nargs, ...)
3601 : {
3602 2751906 : tree ret;
3603 2751906 : va_list args;
3604 2751906 : va_start (args, nargs);
3605 2751906 : if (flag_checking)
3606 : {
3607 2751906 : attr_fnspec fnspec (spec, strlen (spec));
3608 2751906 : fnspec.verify ();
3609 : }
3610 2751906 : ret = build_library_function_decl_1 (name, spec, rettype, nargs, args);
3611 2751906 : va_end (args);
3612 2751906 : return ret;
3613 : }
3614 :
3615 : static void
3616 31424 : gfc_build_intrinsic_function_decls (void)
3617 : {
3618 31424 : tree gfc_int4_type_node = gfc_get_int_type (4);
3619 31424 : tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node);
3620 31424 : tree gfc_int8_type_node = gfc_get_int_type (8);
3621 31424 : tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node);
3622 31424 : tree gfc_int16_type_node = gfc_get_int_type (16);
3623 31424 : tree gfc_logical4_type_node = gfc_get_logical_type (4);
3624 31424 : tree pchar1_type_node = gfc_get_pchar_type (1);
3625 31424 : tree pchar4_type_node = gfc_get_pchar_type (4);
3626 :
3627 : /* String functions. */
3628 31424 : gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec (
3629 : get_identifier (PREFIX("compare_string")), ". . R . R ",
3630 : integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node,
3631 : gfc_charlen_type_node, pchar1_type_node);
3632 31424 : DECL_PURE_P (gfor_fndecl_compare_string) = 1;
3633 31424 : TREE_NOTHROW (gfor_fndecl_compare_string) = 1;
3634 :
3635 31424 : gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec (
3636 : get_identifier (PREFIX("concat_string")), ". . W . R . R ",
3637 : void_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3638 : gfc_charlen_type_node, pchar1_type_node,
3639 : gfc_charlen_type_node, pchar1_type_node);
3640 31424 : TREE_NOTHROW (gfor_fndecl_concat_string) = 1;
3641 :
3642 31424 : gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec (
3643 : get_identifier (PREFIX("string_len_trim")), ". . R ",
3644 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node);
3645 31424 : DECL_PURE_P (gfor_fndecl_string_len_trim) = 1;
3646 31424 : TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1;
3647 :
3648 31424 : gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec (
3649 : get_identifier (PREFIX("string_index")), ". . R . R . ",
3650 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3651 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3652 31424 : DECL_PURE_P (gfor_fndecl_string_index) = 1;
3653 31424 : TREE_NOTHROW (gfor_fndecl_string_index) = 1;
3654 :
3655 31424 : gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec (
3656 : get_identifier (PREFIX("string_scan")), ". . R . R . ",
3657 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3658 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3659 31424 : DECL_PURE_P (gfor_fndecl_string_scan) = 1;
3660 31424 : TREE_NOTHROW (gfor_fndecl_string_scan) = 1;
3661 :
3662 31424 : gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec (
3663 : get_identifier (PREFIX("string_verify")), ". . R . R . ",
3664 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3665 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3666 31424 : DECL_PURE_P (gfor_fndecl_string_verify) = 1;
3667 31424 : TREE_NOTHROW (gfor_fndecl_string_verify) = 1;
3668 :
3669 31424 : gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec (
3670 : get_identifier (PREFIX("string_trim")), ". W w . R ",
3671 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3672 : build_pointer_type (pchar1_type_node), gfc_charlen_type_node,
3673 : pchar1_type_node);
3674 :
3675 31424 : gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec (
3676 : get_identifier (PREFIX("string_minmax")), ". W w . R ",
3677 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3678 : build_pointer_type (pchar1_type_node), integer_type_node,
3679 : integer_type_node);
3680 :
3681 31424 : gfor_fndecl_string_split = gfc_build_library_function_decl_with_spec (
3682 : get_identifier (PREFIX ("string_split")), ". . R . R . . ",
3683 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3684 : gfc_charlen_type_node, pchar1_type_node, gfc_charlen_type_node,
3685 : gfc_logical4_type_node);
3686 :
3687 31424 : {
3688 31424 : tree copy_helper_ptr_type;
3689 31424 : tree copy_helper_fn_type;
3690 :
3691 31424 : copy_helper_fn_type = build_function_type_list (void_type_node,
3692 : pvoid_type_node,
3693 : pvoid_type_node,
3694 : NULL_TREE);
3695 31424 : copy_helper_ptr_type = build_pointer_type (copy_helper_fn_type);
3696 :
3697 31424 : gfor_fndecl_cfi_deep_copy_array
3698 31424 : = gfc_build_library_function_decl_with_spec (
3699 : get_identifier (PREFIX ("cfi_deep_copy_array")), ". R R . ",
3700 : void_type_node, 3, pvoid_type_node, pvoid_type_node,
3701 : copy_helper_ptr_type);
3702 : }
3703 :
3704 31424 : gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec (
3705 : get_identifier (PREFIX("adjustl")), ". W . R ",
3706 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3707 : pchar1_type_node);
3708 31424 : TREE_NOTHROW (gfor_fndecl_adjustl) = 1;
3709 :
3710 31424 : gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec (
3711 : get_identifier (PREFIX("adjustr")), ". W . R ",
3712 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3713 : pchar1_type_node);
3714 31424 : TREE_NOTHROW (gfor_fndecl_adjustr) = 1;
3715 :
3716 31424 : gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec (
3717 : get_identifier (PREFIX("select_string")), ". R . R . ",
3718 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3719 : pchar1_type_node, gfc_charlen_type_node);
3720 31424 : DECL_PURE_P (gfor_fndecl_select_string) = 1;
3721 31424 : TREE_NOTHROW (gfor_fndecl_select_string) = 1;
3722 :
3723 31424 : gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec (
3724 : get_identifier (PREFIX("compare_string_char4")), ". . R . R ",
3725 : integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node,
3726 : gfc_charlen_type_node, pchar4_type_node);
3727 31424 : DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1;
3728 31424 : TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1;
3729 :
3730 31424 : gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec (
3731 : get_identifier (PREFIX("concat_string_char4")), ". . W . R . R ",
3732 : void_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3733 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3734 : pchar4_type_node);
3735 31424 : TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1;
3736 :
3737 31424 : gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec (
3738 : get_identifier (PREFIX("string_len_trim_char4")), ". . R ",
3739 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node);
3740 31424 : DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1;
3741 31424 : TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1;
3742 :
3743 31424 : gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec (
3744 : get_identifier (PREFIX("string_index_char4")), ". . R . R . ",
3745 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3746 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3747 31424 : DECL_PURE_P (gfor_fndecl_string_index_char4) = 1;
3748 31424 : TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1;
3749 :
3750 31424 : gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec (
3751 : get_identifier (PREFIX("string_scan_char4")), ". . R . R . ",
3752 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3753 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3754 31424 : DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1;
3755 31424 : TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1;
3756 :
3757 31424 : gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec (
3758 : get_identifier (PREFIX("string_verify_char4")), ". . R . R . ",
3759 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3760 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3761 31424 : DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1;
3762 31424 : TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1;
3763 :
3764 31424 : gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec (
3765 : get_identifier (PREFIX("string_trim_char4")), ". W w . R ",
3766 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3767 : build_pointer_type (pchar4_type_node), gfc_charlen_type_node,
3768 : pchar4_type_node);
3769 :
3770 31424 : gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec (
3771 : get_identifier (PREFIX("string_minmax_char4")), ". W w . R ",
3772 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3773 : build_pointer_type (pchar4_type_node), integer_type_node,
3774 : integer_type_node);
3775 :
3776 31424 : gfor_fndecl_string_split_char4 = gfc_build_library_function_decl_with_spec (
3777 : get_identifier (PREFIX ("string_split_char4")), ". . R . R . . ",
3778 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3779 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3780 : gfc_logical4_type_node);
3781 :
3782 31424 : gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec (
3783 : get_identifier (PREFIX("adjustl_char4")), ". W . R ",
3784 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3785 : pchar4_type_node);
3786 31424 : TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1;
3787 :
3788 31424 : gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec (
3789 : get_identifier (PREFIX("adjustr_char4")), ". W . R ",
3790 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3791 : pchar4_type_node);
3792 31424 : TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1;
3793 :
3794 31424 : gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec (
3795 : get_identifier (PREFIX("select_string_char4")), ". R . R . ",
3796 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3797 : pvoid_type_node, gfc_charlen_type_node);
3798 31424 : DECL_PURE_P (gfor_fndecl_select_string_char4) = 1;
3799 31424 : TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1;
3800 :
3801 :
3802 : /* Conversion between character kinds. */
3803 :
3804 31424 : gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec (
3805 : get_identifier (PREFIX("convert_char1_to_char4")), ". w . R ",
3806 : void_type_node, 3, build_pointer_type (pchar4_type_node),
3807 : gfc_charlen_type_node, pchar1_type_node);
3808 :
3809 31424 : gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec (
3810 : get_identifier (PREFIX("convert_char4_to_char1")), ". w . R ",
3811 : void_type_node, 3, build_pointer_type (pchar1_type_node),
3812 : gfc_charlen_type_node, pchar4_type_node);
3813 :
3814 : /* Misc. functions. */
3815 :
3816 31424 : gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec (
3817 : get_identifier (PREFIX("ttynam")), ". W . . ",
3818 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3819 : integer_type_node);
3820 :
3821 31424 : gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec (
3822 : get_identifier (PREFIX("fdate")), ". W . ",
3823 : void_type_node, 2, pchar_type_node, gfc_charlen_type_node);
3824 :
3825 31424 : gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec (
3826 : get_identifier (PREFIX("ctime")), ". W . . ",
3827 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3828 : gfc_int8_type_node);
3829 :
3830 31424 : gfor_fndecl_random_init = gfc_build_library_function_decl (
3831 : get_identifier (PREFIX("random_init")),
3832 : void_type_node, 3, gfc_logical4_type_node, gfc_logical4_type_node,
3833 : gfc_int4_type_node);
3834 :
3835 : // gfor_fndecl_caf_rand_init is defined in the lib-coarray section below.
3836 :
3837 31424 : gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec (
3838 : get_identifier (PREFIX("selected_char_kind")), ". . R ",
3839 : gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node);
3840 31424 : DECL_PURE_P (gfor_fndecl_sc_kind) = 1;
3841 31424 : TREE_NOTHROW (gfor_fndecl_sc_kind) = 1;
3842 :
3843 31424 : gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec (
3844 : get_identifier (PREFIX("selected_int_kind")), ". R ",
3845 : gfc_int4_type_node, 1, pvoid_type_node);
3846 31424 : DECL_PURE_P (gfor_fndecl_si_kind) = 1;
3847 31424 : TREE_NOTHROW (gfor_fndecl_si_kind) = 1;
3848 :
3849 31424 : gfor_fndecl_sl_kind = gfc_build_library_function_decl_with_spec (
3850 : get_identifier (PREFIX("selected_logical_kind")), ". R ",
3851 : gfc_int4_type_node, 1, pvoid_type_node);
3852 31424 : DECL_PURE_P (gfor_fndecl_sl_kind) = 1;
3853 31424 : TREE_NOTHROW (gfor_fndecl_sl_kind) = 1;
3854 :
3855 31424 : gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec (
3856 : get_identifier (PREFIX("selected_real_kind2008")), ". R R ",
3857 : gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node,
3858 : pvoid_type_node);
3859 31424 : DECL_PURE_P (gfor_fndecl_sr_kind) = 1;
3860 31424 : TREE_NOTHROW (gfor_fndecl_sr_kind) = 1;
3861 :
3862 31424 : gfor_fndecl_system_clock4 = gfc_build_library_function_decl (
3863 : get_identifier (PREFIX("system_clock_4")),
3864 : void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node,
3865 : gfc_pint4_type_node);
3866 :
3867 31424 : gfor_fndecl_system_clock8 = gfc_build_library_function_decl (
3868 : get_identifier (PREFIX("system_clock_8")),
3869 : void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node,
3870 : gfc_pint8_type_node);
3871 :
3872 : /* Power functions. */
3873 31424 : {
3874 31424 : tree ctype, rtype, itype, jtype;
3875 31424 : int rkind, ikind, jkind;
3876 : #define NIKINDS 3
3877 : #define NRKINDS 4
3878 : #define NUKINDS 5
3879 31424 : static const int ikinds[NIKINDS] = {4, 8, 16};
3880 31424 : static const int rkinds[NRKINDS] = {4, 8, 10, 16};
3881 31424 : static const int ukinds[NUKINDS] = {1, 2, 4, 8, 16};
3882 31424 : char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */
3883 :
3884 125696 : for (ikind=0; ikind < NIKINDS; ikind++)
3885 : {
3886 94272 : itype = gfc_get_int_type (ikinds[ikind]);
3887 :
3888 471360 : for (jkind=0; jkind < NIKINDS; jkind++)
3889 : {
3890 282816 : jtype = gfc_get_int_type (ikinds[jkind]);
3891 282816 : if (itype && jtype)
3892 : {
3893 280781 : sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind],
3894 : ikinds[jkind]);
3895 561562 : gfor_fndecl_math_powi[jkind][ikind].integer =
3896 280781 : gfc_build_library_function_decl (get_identifier (name),
3897 : jtype, 2, jtype, itype);
3898 280781 : TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3899 280781 : TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3900 : }
3901 : }
3902 :
3903 471360 : for (rkind = 0; rkind < NRKINDS; rkind ++)
3904 : {
3905 377088 : rtype = gfc_get_real_type (rkinds[rkind]);
3906 377088 : if (rtype && itype)
3907 : {
3908 375460 : sprintf (name, PREFIX("pow_r%d_i%d"),
3909 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3910 : ikinds[ikind]);
3911 750920 : gfor_fndecl_math_powi[rkind][ikind].real =
3912 375460 : gfc_build_library_function_decl (get_identifier (name),
3913 : rtype, 2, rtype, itype);
3914 375460 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
3915 375460 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
3916 : }
3917 :
3918 377088 : ctype = gfc_get_complex_type (rkinds[rkind]);
3919 377088 : if (ctype && itype)
3920 : {
3921 375460 : sprintf (name, PREFIX("pow_c%d_i%d"),
3922 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3923 : ikinds[ikind]);
3924 750920 : gfor_fndecl_math_powi[rkind][ikind].cmplx =
3925 375460 : gfc_build_library_function_decl (get_identifier (name),
3926 : ctype, 2,ctype, itype);
3927 375460 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
3928 375460 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
3929 : }
3930 : }
3931 : /* For unsigned types, we have every power for every type. */
3932 565632 : for (int base = 0; base < NUKINDS; base++)
3933 : {
3934 471360 : tree base_type = gfc_get_unsigned_type (ukinds[base]);
3935 2828160 : for (int expon = 0; expon < NUKINDS; expon++)
3936 : {
3937 2356800 : tree expon_type = gfc_get_unsigned_type (ukinds[base]);
3938 2356800 : if (base_type && expon_type)
3939 : {
3940 18375 : sprintf (name, PREFIX("pow_m%d_m%d"), ukinds[base],
3941 18375 : ukinds[expon]);
3942 36750 : gfor_fndecl_unsigned_pow_list [base][expon] =
3943 18375 : gfc_build_library_function_decl (get_identifier (name),
3944 : base_type, 2, base_type, expon_type);
3945 18375 : TREE_READONLY (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
3946 18375 : TREE_NOTHROW (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
3947 : }
3948 : }
3949 : }
3950 : }
3951 : #undef NIKINDS
3952 : #undef NRKINDS
3953 : #undef NUKINDS
3954 : }
3955 :
3956 31424 : gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl (
3957 : get_identifier (PREFIX("ishftc4")),
3958 : gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node,
3959 : gfc_int4_type_node);
3960 31424 : TREE_READONLY (gfor_fndecl_math_ishftc4) = 1;
3961 31424 : TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1;
3962 :
3963 31424 : gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl (
3964 : get_identifier (PREFIX("ishftc8")),
3965 : gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node,
3966 : gfc_int4_type_node);
3967 31424 : TREE_READONLY (gfor_fndecl_math_ishftc8) = 1;
3968 31424 : TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1;
3969 :
3970 31424 : if (gfc_int16_type_node)
3971 : {
3972 31017 : gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl (
3973 : get_identifier (PREFIX("ishftc16")),
3974 : gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node,
3975 : gfc_int4_type_node);
3976 31017 : TREE_READONLY (gfor_fndecl_math_ishftc16) = 1;
3977 31017 : TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1;
3978 : }
3979 :
3980 : /* BLAS functions. */
3981 31424 : {
3982 31424 : tree pint = build_pointer_type (integer_type_node);
3983 31424 : tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind));
3984 31424 : tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind));
3985 31424 : tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind));
3986 31424 : tree pz = build_pointer_type
3987 31424 : (gfc_get_complex_type (gfc_default_double_kind));
3988 :
3989 62848 : gfor_fndecl_sgemm = gfc_build_library_function_decl
3990 32199 : (get_identifier
3991 : (flag_underscoring ? "sgemm_" : "sgemm"),
3992 : void_type_node, 15, pchar_type_node,
3993 : pchar_type_node, pint, pint, pint, ps, ps, pint,
3994 : ps, pint, ps, ps, pint, integer_type_node,
3995 : integer_type_node);
3996 62848 : gfor_fndecl_dgemm = gfc_build_library_function_decl
3997 32199 : (get_identifier
3998 : (flag_underscoring ? "dgemm_" : "dgemm"),
3999 : void_type_node, 15, pchar_type_node,
4000 : pchar_type_node, pint, pint, pint, pd, pd, pint,
4001 : pd, pint, pd, pd, pint, integer_type_node,
4002 : integer_type_node);
4003 62848 : gfor_fndecl_cgemm = gfc_build_library_function_decl
4004 32199 : (get_identifier
4005 : (flag_underscoring ? "cgemm_" : "cgemm"),
4006 : void_type_node, 15, pchar_type_node,
4007 : pchar_type_node, pint, pint, pint, pc, pc, pint,
4008 : pc, pint, pc, pc, pint, integer_type_node,
4009 : integer_type_node);
4010 62848 : gfor_fndecl_zgemm = gfc_build_library_function_decl
4011 32199 : (get_identifier
4012 : (flag_underscoring ? "zgemm_" : "zgemm"),
4013 : void_type_node, 15, pchar_type_node,
4014 : pchar_type_node, pint, pint, pint, pz, pz, pint,
4015 : pz, pint, pz, pz, pint, integer_type_node,
4016 : integer_type_node);
4017 : }
4018 :
4019 : /* Other functions. */
4020 31424 : gfor_fndecl_iargc = gfc_build_library_function_decl (
4021 : get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0);
4022 31424 : TREE_NOTHROW (gfor_fndecl_iargc) = 1;
4023 :
4024 31424 : gfor_fndecl_kill_sub = gfc_build_library_function_decl (
4025 : get_identifier (PREFIX ("kill_sub")), void_type_node,
4026 : 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node);
4027 :
4028 31424 : gfor_fndecl_kill = gfc_build_library_function_decl (
4029 : get_identifier (PREFIX ("kill")), gfc_int4_type_node,
4030 : 2, gfc_int4_type_node, gfc_int4_type_node);
4031 :
4032 31424 : gfor_fndecl_is_contiguous0 = gfc_build_library_function_decl_with_spec (
4033 : get_identifier (PREFIX("is_contiguous0")), ". R ",
4034 : gfc_int4_type_node, 1, pvoid_type_node);
4035 31424 : DECL_PURE_P (gfor_fndecl_is_contiguous0) = 1;
4036 31424 : TREE_NOTHROW (gfor_fndecl_is_contiguous0) = 1;
4037 :
4038 31424 : gfor_fndecl_fstat_i4_sub = gfc_build_library_function_decl (
4039 : get_identifier (PREFIX ("fstat_i4_sub")), void_type_node,
4040 : 3, gfc_pint4_type_node, gfc_pint4_type_node, gfc_pint4_type_node);
4041 :
4042 31424 : gfor_fndecl_fstat_i8_sub = gfc_build_library_function_decl (
4043 : get_identifier (PREFIX ("fstat_i8_sub")), void_type_node,
4044 : 3, gfc_pint8_type_node, gfc_pint8_type_node, gfc_pint8_type_node);
4045 :
4046 31424 : gfor_fndecl_lstat_i4_sub = gfc_build_library_function_decl (
4047 : get_identifier (PREFIX ("lstat_i4_sub")), void_type_node,
4048 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
4049 : gfc_charlen_type_node);
4050 :
4051 31424 : gfor_fndecl_lstat_i8_sub = gfc_build_library_function_decl (
4052 : get_identifier (PREFIX ("lstat_i8_sub")), void_type_node,
4053 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
4054 : gfc_charlen_type_node);
4055 :
4056 31424 : gfor_fndecl_stat_i4_sub = gfc_build_library_function_decl (
4057 : get_identifier (PREFIX ("stat_i4_sub")), void_type_node,
4058 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
4059 : gfc_charlen_type_node);
4060 :
4061 31424 : gfor_fndecl_stat_i8_sub = gfc_build_library_function_decl (
4062 : get_identifier (PREFIX ("stat_i8_sub")), void_type_node,
4063 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
4064 : gfc_charlen_type_node);
4065 31424 : }
4066 :
4067 :
4068 : /* Make prototypes for runtime library functions. */
4069 :
4070 : void
4071 31424 : gfc_build_builtin_function_decls (void)
4072 : {
4073 31424 : tree gfc_int8_type_node = gfc_get_int_type (8);
4074 :
4075 31424 : gfor_fndecl_stop_numeric = gfc_build_library_function_decl (
4076 : get_identifier (PREFIX("stop_numeric")),
4077 : void_type_node, 2, integer_type_node, boolean_type_node);
4078 : /* STOP doesn't return. */
4079 31424 : TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1;
4080 :
4081 31424 : gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec (
4082 : get_identifier (PREFIX("stop_string")), ". R . . ",
4083 : void_type_node, 3, pchar_type_node, size_type_node,
4084 : boolean_type_node);
4085 : /* STOP doesn't return. */
4086 31424 : TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1;
4087 :
4088 31424 : gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl (
4089 : get_identifier (PREFIX("error_stop_numeric")),
4090 : void_type_node, 2, integer_type_node, boolean_type_node);
4091 : /* ERROR STOP doesn't return. */
4092 31424 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1;
4093 :
4094 31424 : gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec (
4095 : get_identifier (PREFIX("error_stop_string")), ". R . . ",
4096 : void_type_node, 3, pchar_type_node, size_type_node,
4097 : boolean_type_node);
4098 : /* ERROR STOP doesn't return. */
4099 31424 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1;
4100 :
4101 31424 : gfor_fndecl_pause_numeric = gfc_build_library_function_decl (
4102 : get_identifier (PREFIX("pause_numeric")),
4103 : void_type_node, 1, gfc_int8_type_node);
4104 :
4105 31424 : gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec (
4106 : get_identifier (PREFIX("pause_string")), ". R . ",
4107 : void_type_node, 2, pchar_type_node, size_type_node);
4108 :
4109 31424 : gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec (
4110 : get_identifier (PREFIX("runtime_error")), ". R ",
4111 : void_type_node, -1, pchar_type_node);
4112 : /* The runtime_error function does not return. */
4113 31424 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1;
4114 :
4115 31424 : gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec (
4116 : get_identifier (PREFIX("runtime_error_at")), ". R R ",
4117 : void_type_node, -2, pchar_type_node, pchar_type_node);
4118 : /* The runtime_error_at function does not return. */
4119 31424 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1;
4120 :
4121 31424 : gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec (
4122 : get_identifier (PREFIX("runtime_warning_at")), ". R R ",
4123 : void_type_node, -2, pchar_type_node, pchar_type_node);
4124 :
4125 31424 : gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec (
4126 : get_identifier (PREFIX("generate_error")), ". W . R ",
4127 : void_type_node, 3, pvoid_type_node, integer_type_node,
4128 : pchar_type_node);
4129 :
4130 31424 : gfor_fndecl_os_error_at = gfc_build_library_function_decl_with_spec (
4131 : get_identifier (PREFIX("os_error_at")), ". R R ",
4132 : void_type_node, -2, pchar_type_node, pchar_type_node);
4133 : /* The os_error_at function does not return. */
4134 31424 : TREE_THIS_VOLATILE (gfor_fndecl_os_error_at) = 1;
4135 :
4136 31424 : gfor_fndecl_set_args = gfc_build_library_function_decl (
4137 : get_identifier (PREFIX("set_args")),
4138 : void_type_node, 2, integer_type_node,
4139 : build_pointer_type (pchar_type_node));
4140 :
4141 31424 : gfor_fndecl_set_fpe = gfc_build_library_function_decl (
4142 : get_identifier (PREFIX("set_fpe")),
4143 : void_type_node, 1, integer_type_node);
4144 :
4145 31424 : gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl (
4146 : get_identifier (PREFIX("ieee_procedure_entry")),
4147 : void_type_node, 1, pvoid_type_node);
4148 :
4149 31424 : gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl (
4150 : get_identifier (PREFIX("ieee_procedure_exit")),
4151 : void_type_node, 1, pvoid_type_node);
4152 :
4153 : /* Keep the array dimension in sync with the call, later in this file. */
4154 31424 : gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec (
4155 : get_identifier (PREFIX("set_options")), ". . R ",
4156 : void_type_node, 2, integer_type_node,
4157 : build_pointer_type (integer_type_node));
4158 :
4159 31424 : gfor_fndecl_set_convert = gfc_build_library_function_decl (
4160 : get_identifier (PREFIX("set_convert")),
4161 : void_type_node, 1, integer_type_node);
4162 :
4163 31424 : gfor_fndecl_set_record_marker = gfc_build_library_function_decl (
4164 : get_identifier (PREFIX("set_record_marker")),
4165 : void_type_node, 1, integer_type_node);
4166 :
4167 31424 : gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl (
4168 : get_identifier (PREFIX("set_max_subrecord_length")),
4169 : void_type_node, 1, integer_type_node);
4170 :
4171 31424 : gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec (
4172 : get_identifier (PREFIX("internal_pack")), ". r ",
4173 : pvoid_type_node, 1, pvoid_type_node);
4174 :
4175 31424 : gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec (
4176 : get_identifier (PREFIX("internal_unpack")), ". w R ",
4177 : void_type_node, 2, pvoid_type_node, pvoid_type_node);
4178 :
4179 31424 : gfor_fndecl_in_pack_class = gfc_build_library_function_decl_with_spec (
4180 : get_identifier (PREFIX ("internal_pack_class")), ". w R r r ",
4181 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4182 : integer_type_node);
4183 :
4184 31424 : gfor_fndecl_in_unpack_class = gfc_build_library_function_decl_with_spec (
4185 : get_identifier (PREFIX ("internal_unpack_class")), ". w R r r ",
4186 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4187 : integer_type_node);
4188 :
4189 31424 : gfor_fndecl_associated = gfc_build_library_function_decl_with_spec (
4190 : get_identifier (PREFIX ("associated")), ". R R ", integer_type_node, 2,
4191 : ppvoid_type_node, ppvoid_type_node);
4192 31424 : DECL_PURE_P (gfor_fndecl_associated) = 1;
4193 31424 : TREE_NOTHROW (gfor_fndecl_associated) = 1;
4194 :
4195 : /* Coarray library calls. */
4196 31424 : if (flag_coarray == GFC_FCOARRAY_LIB)
4197 : {
4198 462 : tree pint_type, pppchar_type, psize_type;
4199 :
4200 462 : pint_type = build_pointer_type (integer_type_node);
4201 462 : pppchar_type
4202 462 : = build_pointer_type (build_pointer_type (pchar_type_node));
4203 462 : psize_type = build_pointer_type (size_type_node);
4204 :
4205 462 : gfor_fndecl_caf_init = gfc_build_library_function_decl_with_spec (
4206 : get_identifier (PREFIX("caf_init")), ". W W ",
4207 : void_type_node, 2, pint_type, pppchar_type);
4208 :
4209 462 : gfor_fndecl_caf_finalize = gfc_build_library_function_decl (
4210 : get_identifier (PREFIX("caf_finalize")), void_type_node, 0);
4211 :
4212 462 : gfor_fndecl_caf_this_image = gfc_build_library_function_decl_with_spec (
4213 : get_identifier (PREFIX ("caf_this_image")), ". r ", integer_type_node,
4214 : 1, pvoid_type_node);
4215 :
4216 462 : gfor_fndecl_caf_num_images = gfc_build_library_function_decl (
4217 : get_identifier (PREFIX("caf_num_images")), integer_type_node,
4218 : 2, integer_type_node, integer_type_node);
4219 :
4220 462 : gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec (
4221 : get_identifier (PREFIX("caf_register")), ". . . W w w w . ",
4222 : void_type_node, 7,
4223 : size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node,
4224 : pint_type, pchar_type_node, size_type_node);
4225 :
4226 462 : gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec (
4227 : get_identifier (PREFIX("caf_deregister")), ". W . w w . ",
4228 : void_type_node, 5,
4229 : ppvoid_type_node, integer_type_node, pint_type, pchar_type_node,
4230 : size_type_node);
4231 :
4232 462 : gfor_fndecl_caf_register_accessor
4233 462 : = gfc_build_library_function_decl_with_spec (
4234 : get_identifier (PREFIX ("caf_register_accessor")), ". r r ",
4235 : void_type_node, 2, integer_type_node, pvoid_type_node);
4236 :
4237 462 : gfor_fndecl_caf_register_accessors_finish
4238 462 : = gfc_build_library_function_decl_with_spec (
4239 : get_identifier (PREFIX ("caf_register_accessors_finish")), ". ",
4240 : void_type_node, 0);
4241 :
4242 462 : gfor_fndecl_caf_get_remote_function_index
4243 462 : = gfc_build_library_function_decl_with_spec (
4244 : get_identifier (PREFIX ("caf_get_remote_function_index")), ". r ",
4245 : integer_type_node, 1, integer_type_node);
4246 :
4247 462 : gfor_fndecl_caf_get_from_remote
4248 462 : = gfc_build_library_function_decl_with_spec (
4249 : get_identifier (PREFIX ("caf_get_from_remote")),
4250 : ". r r r r r w w w r r w r w r r ", void_type_node, 15,
4251 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4252 : size_type_node, ppvoid_type_node, psize_type, pvoid_type_node,
4253 : boolean_type_node, integer_type_node, pvoid_type_node, size_type_node,
4254 : pint_type, pvoid_type_node, pint_type);
4255 :
4256 462 : gfor_fndecl_caf_send_to_remote
4257 462 : = gfc_build_library_function_decl_with_spec (
4258 : get_identifier (PREFIX ("caf_send_to_remote")),
4259 : ". r r r r r r r r r w r w r r ", void_type_node, 14, pvoid_type_node,
4260 : pvoid_type_node, psize_type, integer_type_node, size_type_node,
4261 : ppvoid_type_node, psize_type, pvoid_type_node, integer_type_node,
4262 : pvoid_type_node, size_type_node, pint_type, pvoid_type_node,
4263 : pint_type);
4264 :
4265 462 : gfor_fndecl_caf_transfer_between_remotes
4266 462 : = gfc_build_library_function_decl_with_spec (
4267 : get_identifier (PREFIX ("caf_transfer_between_remotes")),
4268 : ". r r r r r r r r r r r r r r r r w w r r ", void_type_node, 20,
4269 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4270 : integer_type_node, pvoid_type_node, size_type_node, pvoid_type_node,
4271 : pvoid_type_node, psize_type, integer_type_node, integer_type_node,
4272 : pvoid_type_node, size_type_node, size_type_node, boolean_type_node,
4273 : pint_type, pint_type, pvoid_type_node, pint_type);
4274 :
4275 462 : gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec (
4276 : get_identifier (PREFIX ("caf_sync_all")), ". w w . ", void_type_node, 3,
4277 : pint_type, pchar_type_node, size_type_node);
4278 :
4279 462 : gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec (
4280 : get_identifier (PREFIX("caf_sync_memory")), ". w w . ", void_type_node,
4281 : 3, pint_type, pchar_type_node, size_type_node);
4282 :
4283 462 : gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec (
4284 : get_identifier (PREFIX("caf_sync_images")), ". . r w w . ", void_type_node,
4285 : 5, integer_type_node, pint_type, pint_type,
4286 : pchar_type_node, size_type_node);
4287 :
4288 462 : gfor_fndecl_caf_error_stop = gfc_build_library_function_decl (
4289 : get_identifier (PREFIX("caf_error_stop")),
4290 : void_type_node, 1, integer_type_node);
4291 : /* CAF's ERROR STOP doesn't return. */
4292 462 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1;
4293 :
4294 462 : gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec (
4295 : get_identifier (PREFIX("caf_error_stop_str")), ". r . ",
4296 : void_type_node, 2, pchar_type_node, size_type_node);
4297 : /* CAF's ERROR STOP doesn't return. */
4298 462 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1;
4299 :
4300 462 : gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl (
4301 : get_identifier (PREFIX("caf_stop_numeric")),
4302 : void_type_node, 1, integer_type_node);
4303 : /* CAF's STOP doesn't return. */
4304 462 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1;
4305 :
4306 462 : gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec (
4307 : get_identifier (PREFIX("caf_stop_str")), ". r . ",
4308 : void_type_node, 2, pchar_type_node, size_type_node);
4309 : /* CAF's STOP doesn't return. */
4310 462 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1;
4311 :
4312 462 : gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec (
4313 : get_identifier (PREFIX("caf_atomic_define")), ". r . . w w . . ",
4314 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4315 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4316 :
4317 462 : gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec (
4318 : get_identifier (PREFIX("caf_atomic_ref")), ". r . . w w . . ",
4319 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4320 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4321 :
4322 462 : gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec (
4323 : get_identifier (PREFIX("caf_atomic_cas")), ". r . . w r r w . . ",
4324 : void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node,
4325 : pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4326 : integer_type_node, integer_type_node);
4327 :
4328 462 : gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec (
4329 : get_identifier (PREFIX("caf_atomic_op")), ". . r . . r w w . . ",
4330 : void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node,
4331 : integer_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4332 : integer_type_node, integer_type_node);
4333 :
4334 462 : gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec (
4335 : get_identifier (PREFIX("caf_lock")), ". r . . w w w . ",
4336 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4337 : pint_type, pint_type, pchar_type_node, size_type_node);
4338 :
4339 462 : gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec (
4340 : get_identifier (PREFIX("caf_unlock")), ". r . . w w . ",
4341 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4342 : pint_type, pchar_type_node, size_type_node);
4343 :
4344 462 : gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec (
4345 : get_identifier (PREFIX("caf_event_post")), ". r . . w w . ",
4346 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4347 : pint_type, pchar_type_node, size_type_node);
4348 :
4349 462 : gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec (
4350 : get_identifier (PREFIX("caf_event_wait")), ". r . . w w . ",
4351 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4352 : pint_type, pchar_type_node, size_type_node);
4353 :
4354 462 : gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec (
4355 : get_identifier (PREFIX("caf_event_query")), ". r . . w w ",
4356 : void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node,
4357 : pint_type, pint_type);
4358 :
4359 462 : gfor_fndecl_caf_fail_image = gfc_build_library_function_decl (
4360 : get_identifier (PREFIX("caf_fail_image")), void_type_node, 0);
4361 : /* CAF's FAIL doesn't return. */
4362 462 : TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1;
4363 :
4364 462 : gfor_fndecl_caf_failed_images
4365 462 : = gfc_build_library_function_decl_with_spec (
4366 : get_identifier (PREFIX("caf_failed_images")), ". w . r ",
4367 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4368 : integer_type_node);
4369 :
4370 462 : gfor_fndecl_caf_form_team = gfc_build_library_function_decl_with_spec (
4371 : get_identifier (PREFIX ("caf_form_team")), ". r w r w w w ",
4372 : void_type_node, 6, integer_type_node, ppvoid_type_node, pint_type,
4373 : pint_type, pchar_type_node, size_type_node);
4374 :
4375 462 : gfor_fndecl_caf_change_team = gfc_build_library_function_decl_with_spec (
4376 : get_identifier (PREFIX ("caf_change_team")), ". r w w w ",
4377 : void_type_node, 4, pvoid_type_node, pint_type, pchar_type_node,
4378 : size_type_node);
4379 :
4380 462 : gfor_fndecl_caf_end_team = gfc_build_library_function_decl_with_spec (
4381 : get_identifier (PREFIX ("caf_end_team")), ". w w w ", void_type_node, 3,
4382 : pint_type, pchar_type_node, size_type_node);
4383 :
4384 462 : gfor_fndecl_caf_get_team = gfc_build_library_function_decl_with_spec (
4385 : get_identifier (PREFIX ("caf_get_team")), ". r ", pvoid_type_node, 1,
4386 : pint_type);
4387 :
4388 462 : gfor_fndecl_caf_sync_team = gfc_build_library_function_decl_with_spec (
4389 : get_identifier (PREFIX ("caf_sync_team")), ". r w w w ", void_type_node,
4390 : 4, pvoid_type_node, pint_type, pchar_type_node, size_type_node);
4391 :
4392 462 : gfor_fndecl_caf_team_number = gfc_build_library_function_decl_with_spec (
4393 : get_identifier (PREFIX ("caf_team_number")), ". r ", integer_type_node,
4394 : 1, pvoid_type_node);
4395 :
4396 462 : gfor_fndecl_caf_image_status = gfc_build_library_function_decl_with_spec (
4397 : get_identifier (PREFIX ("caf_image_status")), ". r r ",
4398 : integer_type_node, 2, integer_type_node, ppvoid_type_node);
4399 :
4400 462 : gfor_fndecl_caf_stopped_images
4401 462 : = gfc_build_library_function_decl_with_spec (
4402 : get_identifier (PREFIX("caf_stopped_images")), ". w r r ",
4403 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4404 : integer_type_node);
4405 :
4406 462 : gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec (
4407 : get_identifier (PREFIX("caf_co_broadcast")), ". w . w w . ",
4408 : void_type_node, 5, pvoid_type_node, integer_type_node,
4409 : pint_type, pchar_type_node, size_type_node);
4410 :
4411 462 : gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec (
4412 : get_identifier (PREFIX("caf_co_max")), ". w . w w . . ",
4413 : void_type_node, 6, pvoid_type_node, integer_type_node,
4414 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4415 :
4416 462 : gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec (
4417 : get_identifier (PREFIX("caf_co_min")), ". w . w w . . ",
4418 : void_type_node, 6, pvoid_type_node, integer_type_node,
4419 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4420 :
4421 462 : gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec (
4422 : get_identifier (PREFIX("caf_co_reduce")), ". w r . . w w . . ",
4423 : void_type_node, 8, pvoid_type_node,
4424 : build_pointer_type (build_varargs_function_type_list (void_type_node,
4425 : NULL_TREE)),
4426 : integer_type_node, integer_type_node, pint_type, pchar_type_node,
4427 : integer_type_node, size_type_node);
4428 :
4429 462 : gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec (
4430 : get_identifier (PREFIX("caf_co_sum")), ". w . w w . ",
4431 : void_type_node, 5, pvoid_type_node, integer_type_node,
4432 : pint_type, pchar_type_node, size_type_node);
4433 :
4434 462 : gfor_fndecl_caf_is_present_on_remote
4435 462 : = gfc_build_library_function_decl_with_spec (
4436 : get_identifier (PREFIX ("caf_is_present_on_remote")), ". r r r r r ",
4437 : integer_type_node, 5, pvoid_type_node, integer_type_node,
4438 : integer_type_node, pvoid_type_node, size_type_node);
4439 :
4440 462 : gfor_fndecl_caf_random_init = gfc_build_library_function_decl (
4441 : get_identifier (PREFIX("caf_random_init")),
4442 : void_type_node, 2, logical_type_node, logical_type_node);
4443 : }
4444 :
4445 31424 : gfc_build_intrinsic_function_decls ();
4446 31424 : gfc_build_intrinsic_lib_fndecls ();
4447 31424 : gfc_build_io_library_fndecls ();
4448 31424 : }
4449 :
4450 :
4451 : /* Evaluate the length of dummy character variables. */
4452 :
4453 : static void
4454 774 : gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl,
4455 : gfc_wrapped_block *block)
4456 : {
4457 774 : stmtblock_t init;
4458 :
4459 774 : gfc_finish_decl (cl->backend_decl);
4460 :
4461 774 : gfc_start_block (&init);
4462 :
4463 : /* Evaluate the string length expression. */
4464 774 : gfc_conv_string_length (cl, NULL, &init);
4465 :
4466 774 : gfc_trans_vla_type_sizes (sym, &init);
4467 :
4468 774 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4469 774 : }
4470 :
4471 :
4472 : /* Allocate and cleanup an automatic character variable. */
4473 :
4474 : static void
4475 354 : gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block)
4476 : {
4477 354 : stmtblock_t init;
4478 354 : tree decl;
4479 354 : tree tmp;
4480 354 : bool back;
4481 :
4482 354 : gcc_assert (sym->backend_decl);
4483 354 : gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length);
4484 :
4485 354 : gfc_init_block (&init);
4486 :
4487 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
4488 : function result (ie. proc_name = proc_name->result), gfc_add_init_cleanup
4489 : must be called with the last, optional argument false so that the process
4490 : ing of the character length occurs after the processing of the result. */
4491 354 : back = sym->fn_result_dep;
4492 :
4493 : /* Evaluate the string length expression. */
4494 354 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
4495 :
4496 354 : gfc_trans_vla_type_sizes (sym, &init);
4497 :
4498 354 : decl = sym->backend_decl;
4499 :
4500 : /* Emit a DECL_EXPR for this variable, which will cause the
4501 : gimplifier to allocate storage, and all that good stuff. */
4502 354 : tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl);
4503 354 : gfc_add_expr_to_block (&init, tmp);
4504 :
4505 354 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE, back);
4506 354 : }
4507 :
4508 : /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */
4509 :
4510 : static void
4511 64 : gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block)
4512 : {
4513 64 : stmtblock_t init;
4514 :
4515 64 : gcc_assert (sym->backend_decl);
4516 64 : gfc_start_block (&init);
4517 :
4518 : /* Set the initial value to length. See the comments in
4519 : function gfc_add_assign_aux_vars in this file. */
4520 64 : gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl),
4521 : build_int_cst (gfc_charlen_type_node, -2));
4522 :
4523 64 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4524 64 : }
4525 :
4526 : static void
4527 161818 : gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body)
4528 : {
4529 161818 : tree t = *tp, var, val;
4530 :
4531 161818 : if (t == NULL || t == error_mark_node)
4532 : return;
4533 151795 : if (TREE_CONSTANT (t) || DECL_P (t))
4534 : return;
4535 :
4536 62473 : if (TREE_CODE (t) == SAVE_EXPR)
4537 : {
4538 35850 : if (SAVE_EXPR_RESOLVED_P (t))
4539 : {
4540 0 : *tp = TREE_OPERAND (t, 0);
4541 0 : return;
4542 : }
4543 35850 : val = TREE_OPERAND (t, 0);
4544 : }
4545 : else
4546 : val = t;
4547 :
4548 62473 : var = gfc_create_var_np (TREE_TYPE (t), NULL);
4549 62473 : gfc_add_decl_to_function (var);
4550 62473 : gfc_add_modify (body, var, unshare_expr (val));
4551 62473 : if (TREE_CODE (t) == SAVE_EXPR)
4552 35850 : TREE_OPERAND (t, 0) = var;
4553 62473 : *tp = var;
4554 : }
4555 :
4556 : static void
4557 90449 : gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body)
4558 : {
4559 90449 : tree t;
4560 :
4561 90449 : if (type == NULL || type == error_mark_node)
4562 : return;
4563 :
4564 90449 : type = TYPE_MAIN_VARIANT (type);
4565 :
4566 90449 : if (TREE_CODE (type) == INTEGER_TYPE)
4567 : {
4568 50085 : gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body);
4569 50085 : gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body);
4570 :
4571 64852 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4572 : {
4573 14767 : TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type);
4574 14767 : TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type);
4575 : }
4576 : }
4577 40364 : else if (TREE_CODE (type) == ARRAY_TYPE)
4578 : {
4579 30824 : gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body);
4580 30824 : gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body);
4581 30824 : gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body);
4582 30824 : gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body);
4583 :
4584 30824 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4585 : {
4586 0 : TYPE_SIZE (t) = TYPE_SIZE (type);
4587 0 : TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type);
4588 : }
4589 : }
4590 : }
4591 :
4592 : /* Make sure all type sizes and array domains are either constant,
4593 : or variable or parameter decls. This is a simplified variant
4594 : of gimplify_type_sizes, but we can't use it here, as none of the
4595 : variables in the expressions have been gimplified yet.
4596 : As type sizes and domains for various variable length arrays
4597 : contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars
4598 : time, without this routine gimplify_type_sizes in the middle-end
4599 : could result in the type sizes being gimplified earlier than where
4600 : those variables are initialized. */
4601 :
4602 : void
4603 27309 : gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body)
4604 : {
4605 27309 : tree type = TREE_TYPE (sym->backend_decl);
4606 :
4607 27309 : if (TREE_CODE (type) == FUNCTION_TYPE
4608 1105 : && (sym->attr.function || sym->attr.result || sym->attr.entry))
4609 : {
4610 1105 : if (! current_fake_result_decl)
4611 : return;
4612 :
4613 1105 : type = TREE_TYPE (TREE_VALUE (current_fake_result_decl));
4614 : }
4615 :
4616 53755 : while (POINTER_TYPE_P (type))
4617 26446 : type = TREE_TYPE (type);
4618 :
4619 27309 : if (GFC_DESCRIPTOR_TYPE_P (type))
4620 : {
4621 1492 : tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type);
4622 :
4623 2984 : while (POINTER_TYPE_P (etype))
4624 1492 : etype = TREE_TYPE (etype);
4625 :
4626 1492 : gfc_trans_vla_type_sizes_1 (etype, body);
4627 : }
4628 :
4629 27309 : gfc_trans_vla_type_sizes_1 (type, body);
4630 : }
4631 :
4632 :
4633 : /* Initialize a derived type by building an lvalue from the symbol
4634 : and using trans_assignment to do the work. Set dealloc to false
4635 : if no deallocation prior the assignment is needed. */
4636 : void
4637 1465 : gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc,
4638 : bool pdt_ok)
4639 : {
4640 1465 : gfc_expr *e;
4641 1465 : tree tmp;
4642 1465 : tree present;
4643 :
4644 1465 : gcc_assert (block);
4645 :
4646 : /* Initialization of PDTs is done elsewhere. */
4647 1465 : if (IS_PDT (sym) && !pdt_ok)
4648 : return;
4649 :
4650 1143 : gcc_assert (!sym->attr.allocatable);
4651 1143 : gfc_set_sym_referenced (sym);
4652 1143 : e = gfc_lval_expr_from_sym (sym);
4653 1143 : tmp = gfc_trans_assignment (e, sym->value, false, dealloc);
4654 1143 : if (sym->attr.dummy && (sym->attr.optional
4655 241 : || sym->ns->proc_name->attr.entry_master))
4656 : {
4657 39 : present = gfc_conv_expr_present (sym);
4658 39 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present,
4659 : tmp, build_empty_stmt (input_location));
4660 : }
4661 1143 : gfc_add_expr_to_block (block, tmp);
4662 1143 : gfc_free_expr (e);
4663 : }
4664 :
4665 :
4666 : /* Initialize a PDT, either when the symbol has a value or when all the
4667 : components have an initializer. */
4668 : static tree
4669 532 : gfc_init_default_pdt (gfc_symbol *sym, bool dealloc)
4670 : {
4671 532 : stmtblock_t block;
4672 532 : tree tmp;
4673 532 : gfc_component *c;
4674 :
4675 532 : if (sym->value && sym->value->symtree
4676 12 : && sym->value->symtree->n.sym
4677 12 : && !sym->value->symtree->n.sym->attr.artificial)
4678 : {
4679 12 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym),
4680 : sym->value, false, false, true);
4681 12 : return tmp;
4682 : }
4683 :
4684 520 : if (!dealloc || !sym->value)
4685 : return NULL_TREE;
4686 :
4687 : /* Allowed in the case where all the components have initializers and
4688 : there are no LEN components. */
4689 329 : c = sym->ts.u.derived->components;
4690 542 : for (; c; c = c->next)
4691 522 : if (c->attr.pdt_len || !c->initializer)
4692 : return NULL_TREE;
4693 :
4694 20 : gfc_init_block (&block);
4695 20 : gfc_init_default_dt (sym, &block, dealloc, true);
4696 20 : return gfc_finish_block (&block);
4697 : }
4698 :
4699 :
4700 : /* Initialize INTENT(OUT) derived type dummies. As well as giving
4701 : them their default initializer, if they have allocatable
4702 : components, they have their allocatable components deallocated. */
4703 :
4704 : static void
4705 98610 : init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4706 : {
4707 98610 : stmtblock_t init;
4708 98610 : gfc_formal_arglist *f;
4709 98610 : tree tmp;
4710 98610 : tree present;
4711 98610 : gfc_symbol *s;
4712 :
4713 98610 : gfc_init_block (&init);
4714 199799 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
4715 101189 : if (f->sym && f->sym->attr.intent == INTENT_OUT
4716 3990 : && !f->sym->attr.pointer
4717 3936 : && f->sym->ts.type == BT_DERIVED)
4718 : {
4719 516 : s = f->sym;
4720 516 : tmp = NULL_TREE;
4721 :
4722 : /* Note: Allocatables are excluded as they are already handled
4723 : by the caller. */
4724 516 : if (!f->sym->attr.allocatable
4725 516 : && gfc_is_finalizable (s->ts.u.derived, NULL))
4726 : {
4727 38 : stmtblock_t block;
4728 38 : gfc_expr *e;
4729 :
4730 38 : gfc_init_block (&block);
4731 38 : s->attr.referenced = 1;
4732 38 : e = gfc_lval_expr_from_sym (s);
4733 38 : gfc_add_finalizer_call (&block, e);
4734 38 : gfc_free_expr (e);
4735 38 : tmp = gfc_finish_block (&block);
4736 : }
4737 :
4738 : /* Note: Allocatables are excluded as they are already handled
4739 : by the caller. */
4740 516 : if (tmp == NULL_TREE && !s->attr.allocatable
4741 358 : && s->ts.u.derived->attr.alloc_comp)
4742 126 : tmp = gfc_deallocate_alloc_comp (s->ts.u.derived,
4743 : s->backend_decl,
4744 126 : s->as ? s->as->rank : 0);
4745 :
4746 516 : if (tmp != NULL_TREE && (s->attr.optional
4747 145 : || s->ns->proc_name->attr.entry_master))
4748 : {
4749 19 : present = gfc_conv_expr_present (s);
4750 19 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4751 : present, tmp, build_empty_stmt (input_location));
4752 : }
4753 :
4754 516 : gfc_add_expr_to_block (&init, tmp);
4755 516 : if (s->value && !s->attr.allocatable)
4756 273 : gfc_init_default_dt (s, &init, false);
4757 : }
4758 100673 : else if (f->sym && f->sym->attr.intent == INTENT_OUT
4759 3474 : && f->sym->ts.type == BT_CLASS
4760 624 : && !CLASS_DATA (f->sym)->attr.class_pointer
4761 605 : && !CLASS_DATA (f->sym)->attr.allocatable)
4762 : {
4763 400 : stmtblock_t block;
4764 400 : gfc_expr *e;
4765 :
4766 400 : gfc_init_block (&block);
4767 400 : f->sym->attr.referenced = 1;
4768 400 : e = gfc_lval_expr_from_sym (f->sym);
4769 400 : gfc_add_finalizer_call (&block, e);
4770 400 : gfc_free_expr (e);
4771 400 : tmp = gfc_finish_block (&block);
4772 :
4773 400 : if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master)
4774 : {
4775 6 : present = gfc_conv_expr_present (f->sym);
4776 6 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4777 : present, tmp,
4778 : build_empty_stmt (input_location));
4779 : }
4780 400 : gfc_add_expr_to_block (&init, tmp);
4781 : }
4782 98610 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4783 98610 : }
4784 :
4785 :
4786 : /* Helper function to manage deferred string lengths. */
4787 :
4788 : static tree
4789 161 : gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init,
4790 : location_t loc)
4791 : {
4792 161 : tree tmp;
4793 :
4794 : /* Character length passed by reference. */
4795 161 : tmp = sym->ts.u.cl->passed_length;
4796 161 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
4797 161 : tmp = fold_convert (gfc_charlen_type_node, tmp);
4798 :
4799 161 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
4800 : /* Zero the string length when entering the scope. */
4801 161 : gfc_add_modify (init, sym->ts.u.cl->backend_decl,
4802 : build_int_cst (gfc_charlen_type_node, 0));
4803 : else
4804 : {
4805 0 : tree tmp2;
4806 :
4807 0 : tmp2 = fold_build2_loc (input_location, MODIFY_EXPR,
4808 : gfc_charlen_type_node,
4809 0 : sym->ts.u.cl->backend_decl, tmp);
4810 0 : if (sym->attr.optional)
4811 : {
4812 0 : tree present = gfc_conv_expr_present (sym);
4813 0 : tmp2 = build3_loc (input_location, COND_EXPR,
4814 : void_type_node, present, tmp2,
4815 : build_empty_stmt (input_location));
4816 : }
4817 0 : gfc_add_expr_to_block (init, tmp2);
4818 : }
4819 :
4820 161 : input_location = loc;
4821 :
4822 : /* Pass the final character length back. */
4823 161 : if (sym->attr.intent != INTENT_IN)
4824 : {
4825 322 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
4826 : gfc_charlen_type_node, tmp,
4827 161 : sym->ts.u.cl->backend_decl);
4828 161 : if (sym->attr.optional)
4829 : {
4830 0 : tree present = gfc_conv_expr_present (sym);
4831 0 : tmp = build3_loc (input_location, COND_EXPR,
4832 : void_type_node, present, tmp,
4833 : build_empty_stmt (input_location));
4834 : }
4835 : }
4836 : else
4837 : tmp = NULL_TREE;
4838 :
4839 161 : return tmp;
4840 : }
4841 :
4842 :
4843 : /* Get the result expression for a procedure. */
4844 :
4845 : static tree
4846 24861 : get_proc_result (gfc_symbol* sym)
4847 : {
4848 24861 : if (sym->attr.subroutine || sym == sym->result)
4849 : {
4850 12483 : if (current_fake_result_decl != NULL)
4851 12294 : return TREE_VALUE (current_fake_result_decl);
4852 :
4853 : return NULL_TREE;
4854 : }
4855 :
4856 12378 : return sym->result->backend_decl;
4857 : }
4858 :
4859 :
4860 : /* Generate function entry and exit code, and add it to the function body.
4861 : This includes:
4862 : Allocation and initialization of array variables.
4863 : Allocation of character string variables.
4864 : Initialization and possibly repacking of dummy arrays.
4865 : Initialization of ASSIGN statement auxiliary variable.
4866 : Initialization of ASSOCIATE names.
4867 : Automatic deallocation. */
4868 :
4869 : void
4870 98610 : gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4871 : {
4872 98610 : location_t loc;
4873 98610 : gfc_symbol *sym;
4874 98610 : gfc_formal_arglist *f;
4875 98610 : stmtblock_t tmpblock;
4876 98610 : bool seen_trans_deferred_array = false;
4877 98610 : bool is_pdt_type = false;
4878 98610 : tree tmp = NULL;
4879 98610 : gfc_expr *e;
4880 98610 : gfc_se se;
4881 98610 : stmtblock_t init;
4882 :
4883 : /* Deal with implicit return variables. Explicit return variables will
4884 : already have been added. */
4885 98610 : if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym)
4886 : {
4887 1687 : if (!current_fake_result_decl)
4888 : {
4889 81 : gfc_entry_list *el = NULL;
4890 81 : if (proc_sym->attr.entry_master)
4891 : {
4892 46 : for (el = proc_sym->ns->entries; el; el = el->next)
4893 46 : if (el->sym != el->sym->result)
4894 : break;
4895 : }
4896 : /* TODO: move to the appropriate place in resolve.cc. */
4897 81 : if (warn_return_type > 0 && el == NULL)
4898 4 : gfc_warning (OPT_Wreturn_type,
4899 : "Return value of function %qs at %L not set",
4900 : proc_sym->name, &proc_sym->declared_at);
4901 : }
4902 1606 : else if (proc_sym->as)
4903 : {
4904 807 : tree result = TREE_VALUE (current_fake_result_decl);
4905 807 : loc = input_location;
4906 807 : input_location = gfc_get_location (&proc_sym->declared_at);
4907 807 : gfc_trans_dummy_array_bias (proc_sym, result, block);
4908 :
4909 : /* An automatic character length, pointer array result. */
4910 807 : if (proc_sym->ts.type == BT_CHARACTER
4911 69 : && VAR_P (proc_sym->ts.u.cl->backend_decl))
4912 : {
4913 51 : tmp = NULL;
4914 51 : if (proc_sym->ts.deferred)
4915 : {
4916 12 : gfc_start_block (&init);
4917 12 : tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, loc);
4918 12 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
4919 : }
4920 : else
4921 39 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
4922 : }
4923 : }
4924 799 : else if (proc_sym->ts.type == BT_CHARACTER)
4925 : {
4926 763 : if (proc_sym->ts.deferred)
4927 : {
4928 91 : tmp = NULL;
4929 91 : loc = input_location;
4930 91 : input_location = gfc_get_location (&proc_sym->declared_at);
4931 91 : gfc_start_block (&init);
4932 : /* Zero the string length on entry. */
4933 91 : gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl,
4934 : build_int_cst (gfc_charlen_type_node, 0));
4935 : /* Null the pointer. */
4936 91 : e = gfc_lval_expr_from_sym (proc_sym);
4937 91 : gfc_init_se (&se, NULL);
4938 91 : se.want_pointer = 1;
4939 91 : gfc_conv_expr (&se, e);
4940 91 : gfc_free_expr (e);
4941 91 : tmp = se.expr;
4942 91 : gfc_add_modify (&init, tmp,
4943 91 : fold_convert (TREE_TYPE (se.expr),
4944 : null_pointer_node));
4945 91 : input_location = loc;
4946 :
4947 : /* Pass back the string length on exit. */
4948 91 : tmp = proc_sym->ts.u.cl->backend_decl;
4949 91 : if (TREE_CODE (tmp) != INDIRECT_REF
4950 91 : && proc_sym->ts.u.cl->passed_length)
4951 : {
4952 91 : tmp = proc_sym->ts.u.cl->passed_length;
4953 91 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
4954 182 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
4955 91 : TREE_TYPE (tmp), tmp,
4956 91 : fold_convert
4957 : (TREE_TYPE (tmp),
4958 : proc_sym->ts.u.cl->backend_decl));
4959 : }
4960 : else
4961 : tmp = NULL_TREE;
4962 :
4963 91 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
4964 : }
4965 672 : else if (VAR_P (proc_sym->ts.u.cl->backend_decl))
4966 393 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
4967 : }
4968 : else
4969 36 : gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX);
4970 : }
4971 96923 : else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym))
4972 : {
4973 : /* Nullify explicit return class arrays on entry. */
4974 34 : tree type;
4975 34 : tmp = get_proc_result (proc_sym);
4976 34 : if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp)))
4977 : {
4978 34 : gfc_start_block (&init);
4979 34 : tmp = gfc_class_data_get (tmp);
4980 34 : type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp));
4981 34 : gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0));
4982 34 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4983 : }
4984 : }
4985 :
4986 98610 : sym = (proc_sym->attr.function
4987 98610 : && proc_sym != proc_sym->result) ? proc_sym->result : NULL;
4988 :
4989 7242 : if (sym && !sym->attr.allocatable && !sym->attr.pointer
4990 6618 : && sym->attr.referenced
4991 13763 : && IS_PDT (sym) && !gfc_has_default_initializer (sym->ts.u.derived))
4992 : {
4993 6 : gfc_init_block (&tmpblock);
4994 6 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
4995 : sym->backend_decl,
4996 6 : sym->as ? sym->as->rank : 0,
4997 6 : sym->param_list);
4998 6 : gfc_add_expr_to_block (&tmpblock, tmp);
4999 6 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5000 : }
5001 :
5002 : /* Initialize the INTENT(OUT) derived type dummy arguments. This
5003 : should be done here so that the offsets and lbounds of arrays
5004 : are available. */
5005 98610 : loc = input_location;
5006 98610 : input_location = gfc_get_location (&proc_sym->declared_at);
5007 98610 : init_intent_out_dt (proc_sym, block);
5008 98610 : input_location = loc;
5009 :
5010 : /* For some reasons, internal procedures point to the parent's
5011 : namespace. Top-level procedure and variables inside BLOCK are fine. */
5012 98610 : gfc_namespace *omp_ns = proc_sym->ns;
5013 98610 : if (proc_sym->ns->proc_name != proc_sym)
5014 199662 : for (omp_ns = proc_sym->ns->contained; omp_ns;
5015 163428 : omp_ns = omp_ns->sibling)
5016 199542 : if (omp_ns->proc_name == proc_sym)
5017 : break;
5018 :
5019 : /* Add 'omp allocate' attribute for gfc_trans_auto_array_allocation and
5020 : unset attr.omp_allocate for 'omp allocate allocator(omp_default_mem_alloc),
5021 : which has the normal codepath except for an invalid-use check in the ME.
5022 : The main processing happens later in this function. */
5023 98610 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5024 98665 : n; n = n->next)
5025 55 : if (!TREE_STATIC (n->sym->backend_decl))
5026 : {
5027 : /* Add empty entries - described and to be filled below. */
5028 36 : tree tmp = build_tree_list (NULL_TREE, NULL_TREE);
5029 36 : TREE_CHAIN (tmp) = build_tree_list (NULL_TREE, NULL_TREE);
5030 36 : DECL_ATTRIBUTES (n->sym->backend_decl)
5031 36 : = tree_cons (get_identifier ("omp allocate"), tmp,
5032 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5033 36 : if (n->u.align == NULL
5034 29 : && n->u2.allocator != NULL
5035 7 : && n->u2.allocator->expr_type == EXPR_CONSTANT
5036 2 : && mpz_cmp_si (n->u2.allocator->value.integer, 1) == 0)
5037 1 : n->sym->attr.omp_allocate = 0;
5038 : }
5039 :
5040 172855 : for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink)
5041 : {
5042 74245 : bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED)
5043 74245 : && (sym->ts.u.derived->attr.alloc_comp
5044 5983 : || gfc_is_finalizable (sym->ts.u.derived,
5045 74245 : NULL));
5046 74245 : if (sym->assoc || sym->attr.vtab)
5047 5023 : continue;
5048 :
5049 : /* Set the vptr of unlimited polymorphic pointer variables so that
5050 : they do not cause segfaults in select type, when the selector
5051 : is an intrinsic type. */
5052 69222 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
5053 1029 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc
5054 1029 : && !sym->attr.dummy && CLASS_DATA (sym)->attr.class_pointer)
5055 : {
5056 308 : gfc_symbol *vtab;
5057 308 : gfc_init_block (&tmpblock);
5058 308 : vtab = gfc_find_vtab (&sym->ts);
5059 308 : if (!vtab->backend_decl)
5060 : {
5061 48 : if (!vtab->attr.referenced)
5062 6 : gfc_set_sym_referenced (vtab);
5063 48 : gfc_get_symbol_decl (vtab);
5064 : }
5065 308 : tmp = gfc_class_vptr_get (sym->backend_decl);
5066 308 : gfc_add_modify (&tmpblock, tmp,
5067 308 : gfc_build_addr_expr (TREE_TYPE (tmp),
5068 : vtab->backend_decl));
5069 308 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5070 : }
5071 :
5072 69222 : if (sym->ts.type == BT_DERIVED
5073 10737 : && sym->ts.u.derived
5074 10737 : && (sym->ts.u.derived->attr.pdt_type || sym->ts.u.derived->attr.pdt_comp))
5075 : {
5076 684 : is_pdt_type = true;
5077 684 : gfc_init_block (&tmpblock);
5078 :
5079 684 : if (!sym->attr.dummy && !sym->attr.pointer)
5080 : {
5081 532 : tmp = gfc_init_default_pdt (sym, true);
5082 532 : if (!sym->attr.allocatable && tmp == NULL_TREE)
5083 : {
5084 398 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
5085 : sym->backend_decl,
5086 398 : sym->as ? sym->as->rank : 0,
5087 398 : sym->param_list);
5088 398 : gfc_add_expr_to_block (&tmpblock, tmp);
5089 : }
5090 102 : else if (tmp != NULL_TREE)
5091 32 : gfc_add_expr_to_block (&tmpblock, tmp);
5092 :
5093 532 : if (!sym->attr.result && !sym->ts.u.derived->attr.alloc_comp)
5094 432 : tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived,
5095 : sym->backend_decl,
5096 432 : sym->as ? sym->as->rank : 0);
5097 : else
5098 : tmp = NULL_TREE;
5099 :
5100 532 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5101 : }
5102 152 : else if (sym->attr.dummy)
5103 : {
5104 62 : tmp = gfc_check_pdt_dummy (sym->ts.u.derived,
5105 : sym->backend_decl,
5106 62 : sym->as ? sym->as->rank : 0,
5107 62 : sym->param_list);
5108 62 : gfc_add_expr_to_block (&tmpblock, tmp);
5109 62 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5110 : }
5111 : }
5112 68538 : else if (IS_CLASS_PDT (sym))
5113 : {
5114 12 : gfc_component *data = CLASS_DATA (sym);
5115 12 : is_pdt_type = true;
5116 12 : gfc_init_block (&tmpblock);
5117 12 : if (!(sym->attr.dummy
5118 12 : || CLASS_DATA (sym)->attr.pointer
5119 12 : || CLASS_DATA (sym)->attr.allocatable))
5120 : {
5121 0 : tmp = gfc_class_data_get (sym->backend_decl);
5122 0 : tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp,
5123 0 : data->as ? data->as->rank : 0,
5124 0 : sym->param_list);
5125 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5126 0 : tmp = gfc_class_data_get (sym->backend_decl);
5127 0 : if (!sym->attr.result)
5128 0 : tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp,
5129 0 : data->as ? data->as->rank : 0);
5130 : else
5131 : tmp = NULL_TREE;
5132 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5133 : }
5134 12 : else if (sym->attr.dummy)
5135 : {
5136 0 : tmp = gfc_class_data_get (sym->backend_decl);
5137 0 : tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp,
5138 0 : data->as ? data->as->rank : 0,
5139 0 : sym->param_list);
5140 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5141 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5142 : }
5143 : }
5144 :
5145 69222 : if (sym->ts.type == BT_CLASS
5146 3845 : && (sym->attr.save || flag_max_stack_var_size == 0)
5147 58 : && CLASS_DATA (sym)->attr.allocatable)
5148 : {
5149 40 : tree vptr;
5150 :
5151 40 : if (UNLIMITED_POLY (sym))
5152 0 : vptr = null_pointer_node;
5153 : else
5154 : {
5155 40 : gfc_symbol *vsym;
5156 40 : vsym = gfc_find_derived_vtab (sym->ts.u.derived);
5157 40 : vptr = gfc_get_symbol_decl (vsym);
5158 40 : vptr = gfc_build_addr_expr (NULL, vptr);
5159 : }
5160 :
5161 40 : if (CLASS_DATA (sym)->attr.dimension
5162 8 : || (CLASS_DATA (sym)->attr.codimension
5163 1 : && flag_coarray != GFC_FCOARRAY_LIB))
5164 : {
5165 33 : tmp = gfc_class_data_get (sym->backend_decl);
5166 33 : tmp = gfc_build_null_descriptor (TREE_TYPE (tmp));
5167 : }
5168 : else
5169 7 : tmp = null_pointer_node;
5170 :
5171 40 : DECL_INITIAL (sym->backend_decl)
5172 40 : = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp);
5173 40 : TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1;
5174 40 : }
5175 69182 : else if ((sym->attr.dimension || sym->attr.codimension
5176 12410 : || (IS_CLASS_COARRAY_OR_ARRAY (sym)
5177 2036 : && !CLASS_DATA (sym)->attr.allocatable)))
5178 : {
5179 57670 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
5180 57670 : symbol_attribute *array_attr;
5181 57670 : gfc_array_spec *as;
5182 57670 : array_type type_of_array;
5183 :
5184 57670 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
5185 57670 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
5186 : /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */
5187 57670 : type_of_array = as->type;
5188 57670 : if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed)
5189 : type_of_array = AS_EXPLICIT;
5190 57599 : switch (type_of_array)
5191 : {
5192 38064 : case AS_EXPLICIT:
5193 38064 : if (sym->attr.dummy || sym->attr.result)
5194 6315 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5195 : /* Allocatable and pointer arrays need to processed
5196 : explicitly. */
5197 31749 : else if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
5198 31749 : || (sym->ts.type == BT_CLASS
5199 0 : && CLASS_DATA (sym)->attr.class_pointer)
5200 31749 : || array_attr->allocatable)
5201 : {
5202 0 : if (TREE_STATIC (sym->backend_decl))
5203 : {
5204 0 : loc = input_location;
5205 0 : input_location = gfc_get_location (&sym->declared_at);
5206 0 : gfc_trans_static_array_pointer (sym);
5207 0 : input_location = loc;
5208 : }
5209 : else
5210 : {
5211 0 : seen_trans_deferred_array = true;
5212 0 : gfc_trans_deferred_array (sym, block);
5213 : }
5214 : }
5215 31749 : else if (sym->attr.codimension
5216 463 : && TREE_STATIC (sym->backend_decl))
5217 : {
5218 402 : gfc_init_block (&tmpblock);
5219 402 : gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl),
5220 : &tmpblock, sym);
5221 402 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5222 : NULL_TREE);
5223 402 : continue;
5224 : }
5225 31347 : else if (sym->attr.codimension && !sym->attr.dimension)
5226 : {
5227 : /* Scalar coarrays do not need array allocation. */
5228 39 : continue;
5229 : }
5230 : else
5231 : {
5232 31308 : loc = input_location;
5233 31308 : input_location = gfc_get_location (&sym->declared_at);
5234 :
5235 31308 : if (alloc_comp_or_fini)
5236 : {
5237 509 : seen_trans_deferred_array = true;
5238 509 : gfc_trans_deferred_array (sym, block);
5239 : }
5240 30799 : else if (sym->ts.type == BT_DERIVED
5241 1755 : && sym->value
5242 541 : && !sym->attr.data
5243 515 : && sym->attr.save == SAVE_NONE)
5244 : {
5245 289 : gfc_start_block (&tmpblock);
5246 289 : gfc_init_default_dt (sym, &tmpblock, false);
5247 289 : gfc_add_init_cleanup (block,
5248 : gfc_finish_block (&tmpblock),
5249 : NULL_TREE);
5250 : }
5251 :
5252 31308 : gfc_trans_auto_array_allocation (sym->backend_decl,
5253 : sym, block);
5254 31308 : input_location = loc;
5255 : }
5256 : break;
5257 :
5258 1521 : case AS_ASSUMED_SIZE:
5259 : /* Must be a dummy parameter. */
5260 1521 : gcc_assert (sym->attr.dummy || as->cp_was_assumed);
5261 :
5262 : /* We should always pass assumed size arrays the g77 way. */
5263 1521 : if (sym->attr.dummy)
5264 1521 : gfc_trans_g77_array (sym, block);
5265 : break;
5266 :
5267 5721 : case AS_ASSUMED_SHAPE:
5268 : /* Must be a dummy parameter. */
5269 5721 : gcc_assert (sym->attr.dummy);
5270 :
5271 5721 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5272 5721 : break;
5273 :
5274 12364 : case AS_ASSUMED_RANK:
5275 12364 : case AS_DEFERRED:
5276 12364 : seen_trans_deferred_array = true;
5277 12364 : gfc_trans_deferred_array (sym, block);
5278 12364 : if (sym->ts.type == BT_CHARACTER && sym->ts.deferred
5279 748 : && sym->attr.result)
5280 : {
5281 32 : gfc_start_block (&init);
5282 32 : loc = input_location;
5283 32 : input_location = gfc_get_location (&sym->declared_at);
5284 32 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5285 32 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5286 : }
5287 : break;
5288 :
5289 0 : default:
5290 0 : gcc_unreachable ();
5291 : }
5292 57229 : if (alloc_comp_or_fini && !seen_trans_deferred_array)
5293 288 : gfc_trans_deferred_array (sym, block);
5294 : }
5295 11512 : else if ((!sym->attr.dummy || sym->ts.deferred)
5296 11316 : && (sym->ts.type == BT_CLASS
5297 2907 : && CLASS_DATA (sym)->attr.class_pointer))
5298 523 : gfc_trans_class_array (sym, block);
5299 10989 : else if ((!sym->attr.dummy || sym->ts.deferred)
5300 10793 : && (sym->attr.allocatable
5301 8465 : || (sym->attr.pointer && sym->attr.result)
5302 8414 : || (sym->ts.type == BT_CLASS
5303 2384 : && CLASS_DATA (sym)->attr.allocatable)))
5304 : {
5305 : /* Ensure that the initialization block may be generated also for
5306 : dummy and result variables when -fno-automatic is specified, which
5307 : sets flag_max_stack_var_size=0. */
5308 4763 : if (!sym->attr.save
5309 4684 : && (flag_max_stack_var_size != 0
5310 3 : || sym->attr.dummy
5311 3 : || sym->attr.result))
5312 : {
5313 4684 : tree descriptor = NULL_TREE;
5314 :
5315 4684 : loc = input_location;
5316 4684 : input_location = gfc_get_location (&sym->declared_at);
5317 4684 : gfc_start_block (&init);
5318 :
5319 4684 : if (sym->ts.type == BT_CHARACTER
5320 985 : && sym->attr.allocatable
5321 961 : && !sym->attr.dimension
5322 961 : && sym->ts.u.cl && sym->ts.u.cl->length
5323 191 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
5324 27 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
5325 :
5326 4684 : if (!sym->attr.pointer)
5327 : {
5328 : /* Nullify and automatic deallocation of allocatable
5329 : scalars. */
5330 4633 : e = gfc_lval_expr_from_sym (sym);
5331 4633 : if (sym->ts.type == BT_CLASS)
5332 2384 : gfc_add_data_component (e);
5333 :
5334 4633 : gfc_init_se (&se, NULL);
5335 4633 : if (sym->ts.type != BT_CLASS
5336 2384 : || sym->ts.u.derived->attr.dimension
5337 2384 : || sym->ts.u.derived->attr.codimension)
5338 : {
5339 2249 : se.want_pointer = 1;
5340 2249 : gfc_conv_expr (&se, e);
5341 : }
5342 2384 : else if (sym->ts.type == BT_CLASS
5343 2384 : && !CLASS_DATA (sym)->attr.dimension
5344 1304 : && !CLASS_DATA (sym)->attr.codimension)
5345 : {
5346 1246 : se.want_pointer = 1;
5347 1246 : gfc_conv_expr (&se, e);
5348 : }
5349 : else
5350 : {
5351 1138 : se.descriptor_only = 1;
5352 1138 : gfc_conv_expr (&se, e);
5353 1138 : descriptor = se.expr;
5354 1138 : se.expr = gfc_conv_descriptor_data_get (se.expr);
5355 : }
5356 4633 : gfc_free_expr (e);
5357 :
5358 4633 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
5359 : {
5360 : /* Nullify when entering the scope. */
5361 4633 : if (sym->ts.type == BT_CLASS
5362 2384 : && (CLASS_DATA (sym)->attr.dimension
5363 1304 : || CLASS_DATA (sym)->attr.codimension))
5364 : {
5365 1138 : stmtblock_t nullify;
5366 1138 : gfc_init_block (&nullify);
5367 1138 : gfc_conv_descriptor_data_set (&nullify, descriptor,
5368 : null_pointer_node);
5369 1138 : tmp = gfc_finish_block (&nullify);
5370 1138 : }
5371 : else
5372 : {
5373 3495 : tree typed_null = fold_convert (TREE_TYPE (se.expr),
5374 : null_pointer_node);
5375 3495 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
5376 3495 : TREE_TYPE (se.expr), se.expr,
5377 : typed_null);
5378 : }
5379 4633 : if (sym->attr.optional)
5380 : {
5381 0 : tree present = gfc_conv_expr_present (sym);
5382 0 : tmp = build3_loc (input_location, COND_EXPR,
5383 : void_type_node, present, tmp,
5384 : build_empty_stmt (input_location));
5385 : }
5386 4633 : gfc_add_expr_to_block (&init, tmp);
5387 : }
5388 : }
5389 :
5390 4684 : if ((sym->attr.dummy || sym->attr.result)
5391 504 : && sym->ts.type == BT_CHARACTER
5392 117 : && sym->ts.deferred
5393 117 : && sym->ts.u.cl->passed_length)
5394 117 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5395 : else
5396 : {
5397 4567 : input_location = loc;
5398 4567 : tmp = NULL_TREE;
5399 : }
5400 :
5401 : /* Initialize descriptor's TKR information. */
5402 4684 : if (sym->ts.type == BT_CLASS)
5403 2384 : gfc_trans_class_array (sym, block);
5404 :
5405 : /* Deallocate when leaving the scope. Nullifying is not
5406 : needed. */
5407 4684 : if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer
5408 4180 : && !sym->ns->proc_name->attr.is_main_program)
5409 : {
5410 1403 : if (sym->ts.type == BT_CLASS
5411 489 : && CLASS_DATA (sym)->attr.codimension)
5412 6 : tmp = gfc_deallocate_with_status (descriptor, NULL_TREE,
5413 : NULL_TREE, NULL_TREE,
5414 : NULL_TREE, true, NULL,
5415 : GFC_CAF_COARRAY_ANALYZE);
5416 : else
5417 : {
5418 1397 : gfc_expr *expr = gfc_lval_expr_from_sym (sym);
5419 1397 : tmp = gfc_deallocate_scalar_with_status (se.expr,
5420 : NULL_TREE,
5421 : NULL_TREE,
5422 : true, expr,
5423 : sym->ts);
5424 1397 : gfc_free_expr (expr);
5425 : }
5426 : }
5427 :
5428 4684 : if (sym->ts.type == BT_CLASS)
5429 : {
5430 : /* Initialize _vptr to declared type. */
5431 2384 : loc = input_location;
5432 2384 : input_location = gfc_get_location (&sym->declared_at);
5433 :
5434 2384 : e = gfc_lval_expr_from_sym (sym);
5435 2384 : gfc_reset_vptr (&init, e);
5436 2384 : gfc_free_expr (e);
5437 2384 : input_location = loc;
5438 : }
5439 :
5440 4684 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5441 : }
5442 : }
5443 6226 : else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred)
5444 : {
5445 244 : tree tmp = NULL;
5446 244 : stmtblock_t init;
5447 :
5448 : /* If we get to here, all that should be left are pointers. */
5449 244 : gcc_assert (sym->attr.pointer);
5450 :
5451 244 : if (sym->attr.dummy)
5452 : {
5453 0 : gfc_start_block (&init);
5454 0 : loc = input_location;
5455 0 : input_location = gfc_get_location (&sym->declared_at);
5456 0 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5457 0 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5458 : }
5459 244 : }
5460 5982 : else if (sym->ts.deferred)
5461 0 : gfc_fatal_error ("Deferred type parameter not yet supported");
5462 5982 : else if (alloc_comp_or_fini)
5463 4655 : gfc_trans_deferred_array (sym, block);
5464 1327 : else if (sym->ts.type == BT_CHARACTER)
5465 : {
5466 696 : loc = input_location;
5467 696 : input_location = gfc_get_location (&sym->declared_at);
5468 696 : if (sym->attr.dummy || sym->attr.result)
5469 342 : gfc_trans_dummy_character (sym, sym->ts.u.cl, block);
5470 : else
5471 354 : gfc_trans_auto_character_variable (sym, block);
5472 696 : input_location = loc;
5473 : }
5474 631 : else if (sym->attr.assign)
5475 : {
5476 64 : loc = input_location;
5477 64 : input_location = gfc_get_location (&sym->declared_at);
5478 64 : gfc_trans_assign_aux_var (sym, block);
5479 64 : input_location = loc;
5480 : }
5481 567 : else if (sym->ts.type == BT_DERIVED
5482 567 : && sym->value
5483 483 : && !sym->attr.data
5484 483 : && sym->attr.save == SAVE_NONE)
5485 : {
5486 464 : gfc_start_block (&tmpblock);
5487 464 : gfc_init_default_dt (sym, &tmpblock, false);
5488 464 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5489 : NULL_TREE);
5490 : }
5491 103 : else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type)
5492 0 : gcc_unreachable ();
5493 : }
5494 :
5495 : /* Handle 'omp allocate'. This has to be after the block above as
5496 : gfc_add_init_cleanup (..., init, ...) puts 'init' of later calls
5497 : before earlier calls. The code is a bit more complex as gfortran does
5498 : not really work with bind expressions / BIND_EXPR_VARS properly, i.e.
5499 : gimplify_bind_expr needs some help for placing the GOMP_alloc. Thus,
5500 : we pass on the location of the allocate-assignment expression and,
5501 : if the size is not constant, the size variable if Fortran computes this
5502 : differently. We also might add an expression location after which the
5503 : code has to be added, e.g. for character len expressions, which affect
5504 : the UNIT_SIZE. */
5505 98610 : gfc_expr *last_allocator = NULL;
5506 98610 : if (omp_ns && omp_ns->omp_allocate)
5507 : {
5508 29 : if (!block->init || TREE_CODE (block->init) != STATEMENT_LIST)
5509 : {
5510 22 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5511 22 : append_to_statement_list (tmp, &block->init);
5512 : }
5513 29 : if (!block->cleanup || TREE_CODE (block->cleanup) != STATEMENT_LIST)
5514 : {
5515 29 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5516 29 : append_to_statement_list (tmp, &block->cleanup);
5517 : }
5518 : }
5519 98610 : tree init_stmtlist = block->init;
5520 98610 : tree cleanup_stmtlist = block->cleanup;
5521 98610 : se.expr = NULL_TREE;
5522 98610 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5523 98665 : n; n = n->next)
5524 : {
5525 55 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align) : NULL_TREE);
5526 55 : if (last_allocator != n->u2.allocator)
5527 : {
5528 24 : location_t loc = input_location;
5529 24 : gfc_init_se (&se, NULL);
5530 24 : if (n->u2.allocator)
5531 : {
5532 22 : input_location = gfc_get_location (&n->u2.allocator->where);
5533 22 : gfc_conv_expr (&se, n->u2.allocator);
5534 : }
5535 : /* We need to evalulate non-constants - also to find the location
5536 : after which the GOMP_alloc has to be added to - also as BLOCK
5537 : does not yield a new BIND_EXPR_BODY. */
5538 24 : if (n->u2.allocator
5539 : && (!(CONSTANT_CLASS_P (se.expr) && DECL_P (se.expr))
5540 : || se.pre.head || se.post.head))
5541 : {
5542 22 : stmtblock_t tmpblock;
5543 22 : gfc_init_block (&tmpblock);
5544 22 : se.expr = gfc_evaluate_now (se.expr, &tmpblock);
5545 : /* First post then pre because the new code is inserted
5546 : at the top. */
5547 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.post), NULL);
5548 22 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5549 : NULL);
5550 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.pre), NULL);
5551 : }
5552 24 : last_allocator = n->u2.allocator;
5553 24 : input_location = loc;
5554 : }
5555 55 : if (TREE_STATIC (n->sym->backend_decl))
5556 19 : continue;
5557 : /* 'omp allocate( {purpose: allocator, value: align},
5558 : {purpose: init-stmtlist, value: cleanup-stmtlist},
5559 : {purpose: size-var, value: last-size-expr} )
5560 : where init-stmt/cleanup-stmt is the STATEMENT list to find the
5561 : try-final block; last-size-expr is to find the location after
5562 : which to add the code and 'size-var' is for the proper size, cf.
5563 : gfc_trans_auto_array_allocation - either or both of the latter
5564 : can be NULL. */
5565 36 : tree tmp = lookup_attribute ("omp allocate",
5566 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5567 36 : tmp = TREE_VALUE (tmp);
5568 36 : TREE_PURPOSE (tmp) = se.expr;
5569 36 : TREE_VALUE (tmp) = align;
5570 36 : TREE_PURPOSE (TREE_CHAIN (tmp)) = init_stmtlist;
5571 36 : TREE_VALUE (TREE_CHAIN (tmp)) = cleanup_stmtlist;
5572 : }
5573 :
5574 98610 : gfc_init_block (&tmpblock);
5575 :
5576 199799 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
5577 : {
5578 101189 : if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER
5579 7771 : && f->sym->ts.u.cl->backend_decl)
5580 : {
5581 7769 : if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL)
5582 4158 : gfc_trans_vla_type_sizes (f->sym, &tmpblock);
5583 : }
5584 : }
5585 :
5586 101479 : if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER
5587 100059 : && current_fake_result_decl != NULL)
5588 : {
5589 832 : gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL);
5590 832 : if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL)
5591 69 : gfc_trans_vla_type_sizes (proc_sym, &tmpblock);
5592 : }
5593 :
5594 98610 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE);
5595 98610 : }
5596 :
5597 :
5598 : struct module_hasher : ggc_ptr_hash<module_htab_entry>
5599 : {
5600 : typedef const char *compare_type;
5601 :
5602 26512 : static hashval_t hash (module_htab_entry *s)
5603 : {
5604 26512 : return htab_hash_string (s->name);
5605 : }
5606 :
5607 : static bool
5608 31467 : equal (module_htab_entry *a, const char *b)
5609 : {
5610 31467 : return !strcmp (a->name, b);
5611 : }
5612 : };
5613 :
5614 : static GTY (()) hash_table<module_hasher> *module_htab;
5615 :
5616 : /* Hash and equality functions for module_htab's decls. */
5617 :
5618 : hashval_t
5619 176801 : module_decl_hasher::hash (tree t)
5620 : {
5621 176801 : const_tree n = DECL_NAME (t);
5622 176801 : if (n == NULL_TREE)
5623 25861 : n = TYPE_NAME (TREE_TYPE (t));
5624 176801 : return htab_hash_string (IDENTIFIER_POINTER (n));
5625 : }
5626 :
5627 : bool
5628 184093 : module_decl_hasher::equal (tree t1, const char *x2)
5629 : {
5630 184093 : const_tree n1 = DECL_NAME (t1);
5631 184093 : if (n1 == NULL_TREE)
5632 26165 : n1 = TYPE_NAME (TREE_TYPE (t1));
5633 184093 : return strcmp (IDENTIFIER_POINTER (n1), x2) == 0;
5634 : }
5635 :
5636 : struct module_htab_entry *
5637 29711 : gfc_find_module (const char *name)
5638 : {
5639 29711 : if (! module_htab)
5640 8089 : module_htab = hash_table<module_hasher>::create_ggc (10);
5641 :
5642 29711 : module_htab_entry **slot
5643 29711 : = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT);
5644 29711 : if (*slot == NULL)
5645 : {
5646 10324 : module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> ();
5647 :
5648 10324 : entry->name = gfc_get_string ("%s", name);
5649 10324 : entry->decls = hash_table<module_decl_hasher>::create_ggc (10);
5650 10324 : *slot = entry;
5651 : }
5652 29711 : return *slot;
5653 : }
5654 :
5655 : void
5656 53632 : gfc_module_add_decl (struct module_htab_entry *entry, tree decl)
5657 : {
5658 53632 : const char *name;
5659 :
5660 53632 : if (DECL_NAME (decl))
5661 45599 : name = IDENTIFIER_POINTER (DECL_NAME (decl));
5662 : else
5663 : {
5664 8033 : gcc_assert (TREE_CODE (decl) == TYPE_DECL);
5665 8033 : name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl)));
5666 : }
5667 53632 : tree *slot
5668 53632 : = entry->decls->find_slot_with_hash (name, htab_hash_string (name),
5669 : INSERT);
5670 53632 : if (*slot == NULL)
5671 53620 : *slot = decl;
5672 53632 : }
5673 :
5674 :
5675 : /* Generate debugging symbols for namelists. This function must come after
5676 : generate_local_decl to ensure that the variables in the namelist are
5677 : already declared. */
5678 :
5679 : static tree
5680 743 : generate_namelist_decl (gfc_symbol * sym)
5681 : {
5682 743 : gfc_namelist *nml;
5683 743 : tree decl;
5684 743 : vec<constructor_elt, va_gc> *nml_decls = NULL;
5685 :
5686 743 : gcc_assert (sym->attr.flavor == FL_NAMELIST);
5687 2745 : for (nml = sym->namelist; nml; nml = nml->next)
5688 : {
5689 2002 : if (nml->sym->backend_decl == NULL_TREE)
5690 : {
5691 220 : nml->sym->attr.referenced = 1;
5692 220 : nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym);
5693 : }
5694 2002 : DECL_IGNORED_P (nml->sym->backend_decl) = 0;
5695 2002 : CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl);
5696 : }
5697 :
5698 743 : decl = make_node (NAMELIST_DECL);
5699 743 : TREE_TYPE (decl) = void_type_node;
5700 743 : NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls);
5701 743 : DECL_NAME (decl) = get_identifier (sym->name);
5702 743 : return decl;
5703 : }
5704 :
5705 :
5706 : /* Output an initialized decl for a module variable. */
5707 :
5708 : static void
5709 142892 : gfc_create_module_variable (gfc_symbol * sym)
5710 : {
5711 142892 : tree decl;
5712 :
5713 : /* Module functions with alternate entries are dealt with later and
5714 : would get caught by the next condition. */
5715 142892 : if (sym->attr.entry)
5716 : return;
5717 :
5718 : /* Make sure we convert the types of the derived types from iso_c_binding
5719 : into (void *). */
5720 142411 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
5721 31290 : && sym->ts.type == BT_DERIVED)
5722 1448 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
5723 :
5724 142411 : if (gfc_fl_struct (sym->attr.flavor)
5725 23045 : && sym->backend_decl
5726 8067 : && TREE_CODE (sym->backend_decl) == RECORD_TYPE)
5727 : {
5728 8033 : decl = sym->backend_decl;
5729 8033 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5730 :
5731 8033 : if (!sym->attr.use_assoc && !sym->attr.used_in_submodule)
5732 : {
5733 7936 : gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE
5734 : || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl);
5735 7936 : gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE
5736 : || DECL_CONTEXT (TYPE_STUB_DECL (decl))
5737 : == sym->ns->proc_name->backend_decl);
5738 : }
5739 8033 : TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5740 8033 : DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl;
5741 8033 : gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl));
5742 : }
5743 :
5744 : /* Only output variables, procedure pointers and array valued,
5745 : or derived type, parameters. */
5746 142411 : if (sym->attr.flavor != FL_VARIABLE
5747 119975 : && !(sym->attr.flavor == FL_PARAMETER
5748 39394 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
5749 118935 : && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer))
5750 : return;
5751 :
5752 23549 : if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl)
5753 : {
5754 461 : decl = sym->backend_decl;
5755 461 : gcc_assert (DECL_FILE_SCOPE_P (decl));
5756 461 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5757 461 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5758 461 : gfc_module_add_decl (cur_module, decl);
5759 : }
5760 :
5761 : /* Don't generate variables from other modules. Variables from
5762 : COMMONs and Cray pointees will already have been generated. */
5763 23549 : if (sym->attr.use_assoc || sym->attr.used_in_submodule
5764 19845 : || sym->attr.in_common || sym->attr.cray_pointee)
5765 : return;
5766 :
5767 : /* Equivalenced variables arrive here after creation. */
5768 19526 : if (sym->backend_decl
5769 581 : && (sym->equiv_built || sym->attr.in_equivalence))
5770 : return;
5771 :
5772 19439 : if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target)
5773 0 : gfc_internal_error ("backend decl for module variable %qs already exists",
5774 : sym->name);
5775 :
5776 19439 : if (sym->module && !sym->attr.result && !sym->attr.dummy
5777 19439 : && (sym->attr.access == ACCESS_UNKNOWN
5778 3714 : && (sym->ns->default_access == ACCESS_PRIVATE
5779 3424 : || (sym->ns->default_access == ACCESS_UNKNOWN
5780 3410 : && flag_module_private))))
5781 291 : sym->attr.access = ACCESS_PRIVATE;
5782 :
5783 19439 : if (warn_unused_variable && !sym->attr.referenced
5784 138 : && sym->attr.access == ACCESS_PRIVATE)
5785 3 : gfc_warning (OPT_Wunused_value,
5786 : "Unused PRIVATE module variable %qs declared at %L",
5787 : sym->name, &sym->declared_at);
5788 :
5789 : /* We always want module variables to be created. */
5790 19439 : sym->attr.referenced = 1;
5791 : /* Create the decl. */
5792 19439 : decl = gfc_get_symbol_decl (sym);
5793 :
5794 : /* Create the variable. */
5795 19439 : pushdecl (decl);
5796 19439 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE
5797 : || ((sym->ns->parent->proc_name->attr.flavor == FL_MODULE
5798 : || sym->ns->parent->proc_name->attr.flavor == FL_PROCEDURE)
5799 : && sym->fn_result_spec));
5800 19439 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5801 19439 : rest_of_decl_compilation (decl, 1, 0);
5802 19439 : gfc_module_add_decl (cur_module, decl);
5803 :
5804 : /* Also add length of strings. */
5805 19439 : if (sym->ts.type == BT_CHARACTER)
5806 : {
5807 400 : tree length;
5808 :
5809 400 : length = sym->ts.u.cl->backend_decl;
5810 400 : gcc_assert (length || sym->attr.proc_pointer);
5811 399 : if (length && !INTEGER_CST_P (length))
5812 : {
5813 54 : pushdecl (length);
5814 54 : rest_of_decl_compilation (length, 1, 0);
5815 : }
5816 : }
5817 :
5818 19439 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
5819 26 : && sym->attr.referenced && !sym->attr.use_assoc)
5820 26 : has_coarray_vars_or_accessors = true;
5821 : }
5822 :
5823 : /* Emit debug information for USE statements. */
5824 :
5825 : static void
5826 93721 : gfc_trans_use_stmts (gfc_namespace * ns)
5827 : {
5828 93721 : gfc_use_list *use_stmt;
5829 105304 : for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next)
5830 : {
5831 11583 : struct module_htab_entry *entry
5832 11583 : = gfc_find_module (use_stmt->module_name);
5833 11583 : gfc_use_rename *rent;
5834 :
5835 11583 : if (entry->namespace_decl == NULL)
5836 : {
5837 1261 : entry->namespace_decl
5838 1261 : = build_decl (input_location,
5839 : NAMESPACE_DECL,
5840 : get_identifier (use_stmt->module_name),
5841 : void_type_node);
5842 1261 : DECL_EXTERNAL (entry->namespace_decl) = 1;
5843 : }
5844 11583 : input_location = gfc_get_location (&use_stmt->where);
5845 11583 : if (!use_stmt->only_flag)
5846 10034 : (*debug_hooks->imported_module_or_decl) (entry->namespace_decl,
5847 : NULL_TREE,
5848 10034 : ns->proc_name->backend_decl,
5849 : false, false);
5850 14196 : for (rent = use_stmt->rename; rent; rent = rent->next)
5851 : {
5852 2613 : tree decl, local_name;
5853 :
5854 2613 : if (rent->op != INTRINSIC_NONE)
5855 104 : continue;
5856 :
5857 2509 : hashval_t hash = htab_hash_string (rent->use_name);
5858 2509 : tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash,
5859 : INSERT);
5860 2509 : if (*slot == NULL)
5861 : {
5862 1403 : gfc_symtree *st;
5863 :
5864 1403 : st = gfc_find_symtree (ns->sym_root,
5865 1403 : rent->local_name[0]
5866 : ? rent->local_name : rent->use_name);
5867 :
5868 : /* The following can happen if a derived type is renamed. */
5869 1403 : if (!st)
5870 : {
5871 0 : char *name;
5872 0 : name = xstrdup (rent->local_name[0]
5873 : ? rent->local_name : rent->use_name);
5874 0 : name[0] = (char) TOUPPER ((unsigned char) name[0]);
5875 0 : st = gfc_find_symtree (ns->sym_root, name);
5876 0 : free (name);
5877 0 : gcc_assert (st);
5878 : }
5879 :
5880 : /* Sometimes, generic interfaces wind up being over-ruled by a
5881 : local symbol (see PR41062). */
5882 1403 : if (!st->n.sym->attr.use_assoc)
5883 : {
5884 2 : *slot = error_mark_node;
5885 2 : entry->decls->clear_slot (slot);
5886 2 : continue;
5887 : }
5888 :
5889 1401 : if (st->n.sym->backend_decl
5890 167 : && DECL_P (st->n.sym->backend_decl)
5891 165 : && st->n.sym->module
5892 165 : && strcmp (st->n.sym->module, use_stmt->module_name) == 0)
5893 : {
5894 156 : gcc_assert (DECL_EXTERNAL (entry->namespace_decl)
5895 : || !VAR_P (st->n.sym->backend_decl));
5896 156 : decl = copy_node (st->n.sym->backend_decl);
5897 156 : DECL_CONTEXT (decl) = entry->namespace_decl;
5898 156 : DECL_EXTERNAL (decl) = 1;
5899 156 : DECL_IGNORED_P (decl) = 0;
5900 156 : DECL_INITIAL (decl) = NULL_TREE;
5901 : }
5902 1245 : else if (st->n.sym->attr.flavor == FL_NAMELIST
5903 0 : && st->n.sym->attr.use_only
5904 0 : && st->n.sym->module
5905 0 : && strcmp (st->n.sym->module, use_stmt->module_name)
5906 : == 0)
5907 : {
5908 0 : decl = generate_namelist_decl (st->n.sym);
5909 0 : DECL_CONTEXT (decl) = entry->namespace_decl;
5910 0 : DECL_EXTERNAL (decl) = 1;
5911 0 : DECL_IGNORED_P (decl) = 0;
5912 0 : DECL_INITIAL (decl) = NULL_TREE;
5913 : }
5914 : else
5915 : {
5916 1245 : *slot = error_mark_node;
5917 1245 : entry->decls->clear_slot (slot);
5918 1245 : continue;
5919 : }
5920 156 : *slot = decl;
5921 : }
5922 1262 : decl = (tree) *slot;
5923 1262 : if (rent->local_name[0])
5924 198 : local_name = get_identifier (rent->local_name);
5925 : else
5926 : local_name = NULL_TREE;
5927 1262 : input_location = gfc_get_location (&rent->where);
5928 1262 : (*debug_hooks->imported_module_or_decl) (decl, local_name,
5929 1262 : ns->proc_name->backend_decl,
5930 1262 : !use_stmt->only_flag,
5931 : false);
5932 : }
5933 : }
5934 93721 : }
5935 :
5936 :
5937 : /* Return true if expr is a constant initializer that gfc_conv_initializer
5938 : will handle. */
5939 :
5940 : static bool
5941 23162 : check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array,
5942 : bool pointer)
5943 : {
5944 23162 : gfc_constructor *c;
5945 23162 : gfc_component *cm;
5946 :
5947 23162 : if (pointer)
5948 : return true;
5949 23158 : else if (array)
5950 : {
5951 2579 : if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL)
5952 : return true;
5953 2550 : else if (expr->expr_type == EXPR_STRUCTURE)
5954 12 : return check_constant_initializer (expr, ts, false, false);
5955 2538 : else if (expr->expr_type != EXPR_ARRAY)
5956 : return false;
5957 2538 : for (c = gfc_constructor_first (expr->value.constructor);
5958 134061 : c; c = gfc_constructor_next (c))
5959 : {
5960 131523 : if (c->iterator)
5961 : return false;
5962 131523 : if (c->expr->expr_type == EXPR_STRUCTURE)
5963 : {
5964 284 : if (!check_constant_initializer (c->expr, ts, false, false))
5965 : return false;
5966 : }
5967 131239 : else if (c->expr->expr_type != EXPR_CONSTANT)
5968 : return false;
5969 : }
5970 : return true;
5971 : }
5972 20579 : else switch (ts->type)
5973 : {
5974 441 : case_bt_struct:
5975 441 : if (expr->expr_type != EXPR_STRUCTURE)
5976 : return false;
5977 441 : cm = expr->ts.u.derived->components;
5978 441 : for (c = gfc_constructor_first (expr->value.constructor);
5979 1005 : c; c = gfc_constructor_next (c), cm = cm->next)
5980 : {
5981 572 : if (!c->expr || cm->attr.allocatable)
5982 14 : continue;
5983 558 : if (!check_constant_initializer (c->expr, &cm->ts,
5984 : cm->attr.dimension,
5985 : cm->attr.pointer))
5986 : return false;
5987 : }
5988 : return true;
5989 20138 : default:
5990 20138 : return expr->expr_type == EXPR_CONSTANT;
5991 : }
5992 : }
5993 :
5994 : /* Emit debug info for parameters and unreferenced variables with
5995 : initializers. */
5996 :
5997 : static void
5998 1202738 : gfc_emit_parameter_debug_info (gfc_symbol *sym)
5999 : {
6000 1202738 : tree decl;
6001 :
6002 1202738 : if (sym->attr.flavor != FL_PARAMETER
6003 956661 : && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced))
6004 : return;
6005 :
6006 284574 : if (sym->backend_decl != NULL
6007 262721 : || sym->value == NULL
6008 233777 : || sym->attr.use_assoc
6009 22368 : || sym->attr.dummy
6010 22368 : || sym->attr.result
6011 22368 : || sym->attr.function
6012 22368 : || sym->attr.intrinsic
6013 22368 : || sym->attr.pointer
6014 22358 : || sym->attr.allocatable
6015 22358 : || sym->attr.cray_pointee
6016 22358 : || sym->attr.threadprivate
6017 22357 : || sym->attr.is_bind_c
6018 22357 : || sym->attr.subref_array_pointer
6019 22357 : || sym->attr.assign)
6020 : return;
6021 :
6022 22357 : if (sym->ts.type == BT_CHARACTER)
6023 : {
6024 1340 : gfc_conv_const_charlen (sym->ts.u.cl);
6025 1340 : if (sym->ts.u.cl->backend_decl == NULL
6026 1340 : || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST)
6027 : return;
6028 : }
6029 21017 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp)
6030 : return;
6031 :
6032 22308 : if (sym->as)
6033 : {
6034 2513 : int n;
6035 :
6036 2513 : if (sym->as->type != AS_EXPLICIT)
6037 : return;
6038 5668 : for (n = 0; n < sym->as->rank; n++)
6039 3155 : if (sym->as->lower[n]->expr_type != EXPR_CONSTANT
6040 3155 : || sym->as->upper[n] == NULL
6041 3155 : || sym->as->upper[n]->expr_type != EXPR_CONSTANT)
6042 : return;
6043 : }
6044 :
6045 22308 : if (!check_constant_initializer (sym->value, &sym->ts,
6046 22308 : sym->attr.dimension, false))
6047 : return;
6048 :
6049 22299 : if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension)
6050 : return;
6051 :
6052 : /* Create the decl for the variable or constant. */
6053 44598 : decl = build_decl (input_location,
6054 22299 : sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL,
6055 : gfc_sym_identifier (sym), gfc_sym_type (sym));
6056 22299 : if (sym->attr.flavor == FL_PARAMETER)
6057 22062 : TREE_READONLY (decl) = 1;
6058 22299 : gfc_set_decl_location (decl, &sym->declared_at);
6059 22299 : if (sym->attr.dimension)
6060 2513 : GFC_DECL_PACKED_ARRAY (decl) = 1;
6061 22299 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6062 22299 : TREE_STATIC (decl) = 1;
6063 22299 : TREE_USED (decl) = 1;
6064 22299 : if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL)
6065 2489 : TREE_PUBLIC (decl) = 1;
6066 22299 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
6067 22299 : TREE_TYPE (decl),
6068 22299 : sym->attr.dimension,
6069 : false, false);
6070 22299 : debug_hooks->early_global_decl (decl);
6071 : }
6072 :
6073 :
6074 : static void
6075 6683 : generate_coarray_sym_init (gfc_symbol *sym)
6076 : {
6077 6683 : tree tmp, size, decl, token, desc;
6078 6683 : bool is_lock_type, is_event_type;
6079 6683 : int reg_type;
6080 6683 : gfc_se se;
6081 6683 : symbol_attribute attr;
6082 :
6083 6683 : if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension
6084 395 : || sym->attr.use_assoc || !sym->attr.referenced
6085 391 : || sym->attr.associate_var
6086 340 : || sym->attr.select_type_temporary)
6087 6343 : return;
6088 :
6089 340 : decl = sym->backend_decl;
6090 340 : TREE_USED(decl) = 1;
6091 340 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl)));
6092 :
6093 680 : is_lock_type = sym->ts.type == BT_DERIVED
6094 152 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6095 374 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE;
6096 :
6097 680 : is_event_type = sym->ts.type == BT_DERIVED
6098 152 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6099 374 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE;
6100 :
6101 : /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108
6102 : to make sure the variable is not optimized away. */
6103 340 : DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1;
6104 :
6105 : /* For lock types, we pass the array size as only the library knows the
6106 : size of the variable. */
6107 340 : if (is_lock_type || is_event_type)
6108 34 : size = gfc_index_one_node;
6109 : else
6110 306 : size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl)));
6111 :
6112 : /* Ensure that we do not have size=0 for zero-sized arrays. */
6113 340 : size = fold_build2_loc (input_location, MAX_EXPR, size_type_node,
6114 : fold_convert (size_type_node, size),
6115 : build_int_cst (size_type_node, 1));
6116 :
6117 340 : if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl)))
6118 : {
6119 109 : tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl));
6120 109 : size = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
6121 : fold_convert (size_type_node, tmp), size);
6122 : }
6123 :
6124 340 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE);
6125 1020 : token = gfc_build_addr_expr (ppvoid_type_node,
6126 340 : GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl)));
6127 340 : if (is_lock_type)
6128 29 : reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC;
6129 311 : else if (is_event_type)
6130 : reg_type = GFC_CAF_EVENT_STATIC;
6131 : else
6132 306 : reg_type = GFC_CAF_COARRAY_STATIC;
6133 :
6134 : /* Compile the symbol attribute. */
6135 340 : if (sym->ts.type == BT_CLASS)
6136 : {
6137 0 : attr = CLASS_DATA (sym)->attr;
6138 : /* The pointer attribute is always set on classes, overwrite it with the
6139 : class_pointer attribute, which denotes the pointer for classes. */
6140 0 : attr.pointer = attr.class_pointer;
6141 : }
6142 : else
6143 340 : attr = sym->attr;
6144 340 : gfc_init_se (&se, NULL);
6145 340 : desc = gfc_conv_scalar_to_descriptor (&se, decl, attr);
6146 340 : gfc_add_block_to_block (&caf_init_block, &se.pre);
6147 :
6148 340 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size,
6149 340 : build_int_cst (integer_type_node, reg_type),
6150 : token, gfc_build_addr_expr (pvoid_type_node, desc),
6151 : null_pointer_node, /* stat. */
6152 : null_pointer_node, /* errgmsg. */
6153 : build_zero_cst (size_type_node)); /* errmsg_len. */
6154 340 : gfc_add_expr_to_block (&caf_init_block, tmp);
6155 340 : gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl),
6156 : gfc_conv_descriptor_data_get (desc)));
6157 :
6158 : /* Handle "static" initializer. */
6159 340 : if (sym->value)
6160 : {
6161 106 : if (sym->value->expr_type == EXPR_ARRAY)
6162 : {
6163 12 : gfc_constructor *c, *cnext;
6164 :
6165 : /* Test if the array has more than one element. */
6166 12 : c = gfc_constructor_first (sym->value->value.constructor);
6167 12 : gcc_assert (c); /* Empty constructor should not happen here. */
6168 12 : cnext = gfc_constructor_next (c);
6169 :
6170 12 : if (cnext)
6171 : {
6172 : /* An EXPR_ARRAY with a rank > 1 here has to come from a
6173 : DATA statement. Set its rank here as not to confuse
6174 : the following steps. */
6175 11 : sym->value->rank = 1;
6176 : }
6177 : else
6178 : {
6179 : /* There is only a single value in the constructor, use
6180 : it directly for the assignment. */
6181 1 : gfc_expr *new_expr;
6182 1 : new_expr = gfc_copy_expr (c->expr);
6183 1 : gfc_free_expr (sym->value);
6184 1 : sym->value = new_expr;
6185 : }
6186 : }
6187 :
6188 106 : sym->attr.pointer = 1;
6189 106 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value,
6190 : true, false);
6191 106 : sym->attr.pointer = 0;
6192 106 : gfc_add_expr_to_block (&caf_init_block, tmp);
6193 : }
6194 234 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp)
6195 : {
6196 32 : tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as
6197 : ? sym->as->rank : 0,
6198 : GFC_STRUCTURE_CAF_MODE_IN_COARRAY);
6199 32 : gfc_add_expr_to_block (&caf_init_block, tmp);
6200 : }
6201 : }
6202 :
6203 : struct caf_accessor
6204 : {
6205 : struct caf_accessor *next;
6206 : gfc_expr *hash, *fdecl;
6207 : };
6208 :
6209 : static struct caf_accessor *caf_accessor_head = NULL;
6210 :
6211 : void
6212 1488 : gfc_add_caf_accessor (gfc_expr *h, gfc_expr *f)
6213 : {
6214 1488 : struct caf_accessor *n = XCNEW (struct caf_accessor);
6215 1488 : n->next = caf_accessor_head;
6216 1488 : n->hash = h;
6217 1488 : n->fdecl = f;
6218 1488 : caf_accessor_head = n;
6219 1488 : }
6220 :
6221 : void
6222 459 : create_caf_accessor_register (stmtblock_t *block)
6223 : {
6224 459 : gfc_se se;
6225 459 : tree hash, fdecl;
6226 459 : gfc_init_se (&se, NULL);
6227 1887 : for (struct caf_accessor *curr = caf_accessor_head; curr;)
6228 : {
6229 1428 : gfc_conv_expr (&se, curr->hash);
6230 1428 : hash = se.expr;
6231 1428 : gfc_conv_expr (&se, curr->fdecl);
6232 1428 : fdecl = se.expr;
6233 1428 : TREE_USED (fdecl) = 1;
6234 1428 : TREE_STATIC (fdecl) = 1;
6235 1428 : gcc_assert (FUNCTION_POINTER_TYPE_P (TREE_TYPE (fdecl)));
6236 1428 : gfc_add_expr_to_block (
6237 : block, build_call_expr (gfor_fndecl_caf_register_accessor, 2, hash,
6238 : /*gfc_build_addr_expr (NULL_TREE,*/ fdecl));
6239 1428 : curr = curr->next;
6240 1428 : free (caf_accessor_head);
6241 1428 : caf_accessor_head = curr;
6242 : }
6243 459 : gfc_add_expr_to_block (
6244 : block, build_call_expr (gfor_fndecl_caf_register_accessors_finish, 0));
6245 459 : }
6246 :
6247 : /* Generate constructor function to initialize static, nonallocatable
6248 : coarrays. */
6249 :
6250 : static void
6251 459 : generate_coarray_init (gfc_namespace *ns)
6252 : {
6253 459 : tree fndecl, tmp, decl, save_fn_decl;
6254 :
6255 459 : save_fn_decl = current_function_decl;
6256 459 : push_function_context ();
6257 :
6258 459 : tmp = build_function_type_list (void_type_node, NULL_TREE);
6259 459 : fndecl = build_decl (input_location, FUNCTION_DECL,
6260 : create_tmp_var_name ("_caf_init"), tmp);
6261 :
6262 459 : DECL_STATIC_CONSTRUCTOR (fndecl) = 1;
6263 459 : SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY);
6264 :
6265 459 : decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node);
6266 459 : DECL_ARTIFICIAL (decl) = 1;
6267 459 : DECL_IGNORED_P (decl) = 1;
6268 459 : DECL_CONTEXT (decl) = fndecl;
6269 459 : DECL_RESULT (fndecl) = decl;
6270 :
6271 459 : pushdecl (fndecl);
6272 459 : current_function_decl = fndecl;
6273 459 : announce_function (fndecl);
6274 :
6275 459 : rest_of_decl_compilation (fndecl, 0, 0);
6276 459 : make_decl_rtl (fndecl);
6277 459 : allocate_struct_function (fndecl, false);
6278 :
6279 459 : pushlevel ();
6280 459 : gfc_init_block (&caf_init_block);
6281 :
6282 459 : create_caf_accessor_register (&caf_init_block);
6283 :
6284 459 : gfc_traverse_ns (ns, generate_coarray_sym_init);
6285 :
6286 459 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block);
6287 459 : decl = getdecls ();
6288 :
6289 459 : poplevel (1, 1);
6290 459 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
6291 :
6292 918 : DECL_SAVED_TREE (fndecl)
6293 918 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
6294 918 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
6295 459 : dump_function (TDI_original, fndecl);
6296 :
6297 459 : cfun->function_end_locus = input_location;
6298 459 : set_cfun (NULL);
6299 :
6300 459 : if (decl_function_context (fndecl))
6301 441 : (void) cgraph_node::create (fndecl);
6302 : else
6303 18 : cgraph_node::finalize_function (fndecl, true);
6304 :
6305 459 : pop_function_context ();
6306 459 : current_function_decl = save_fn_decl;
6307 459 : }
6308 :
6309 :
6310 : static void
6311 142892 : create_module_nml_decl (gfc_symbol *sym)
6312 : {
6313 142892 : if (sym->attr.flavor == FL_NAMELIST)
6314 : {
6315 45 : tree decl = generate_namelist_decl (sym);
6316 45 : pushdecl (decl);
6317 45 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
6318 45 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6319 45 : rest_of_decl_compilation (decl, 1, 0);
6320 45 : gfc_module_add_decl (cur_module, decl);
6321 : }
6322 142892 : }
6323 :
6324 : static void
6325 265940 : gfc_handle_omp_declare_variant (gfc_symbol * sym)
6326 : {
6327 265940 : if (sym->attr.external
6328 86114 : && sym->formal_ns
6329 82284 : && sym->formal_ns->omp_declare_variant)
6330 : {
6331 26 : gfc_namespace *ns = gfc_current_ns;
6332 26 : gfc_current_ns = sym->ns;
6333 26 : gfc_get_symbol_decl (sym);
6334 26 : gfc_current_ns = ns;
6335 : }
6336 265940 : }
6337 :
6338 : /* Generate all the required code for module variables. */
6339 :
6340 : void
6341 9063 : gfc_generate_module_vars (gfc_namespace * ns)
6342 : {
6343 9063 : module_namespace = ns;
6344 9063 : cur_module = gfc_find_module (ns->proc_name->name);
6345 :
6346 : /* Check if the frontend left the namespace in a reasonable state. */
6347 9063 : gcc_assert (ns->proc_name && !ns->proc_name->tlink);
6348 :
6349 : /* Generate COMMON blocks. */
6350 9063 : gfc_trans_common (ns);
6351 :
6352 9063 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
6353 :
6354 : /* Create decls for all the module variables. */
6355 9063 : gfc_traverse_ns (ns, gfc_create_module_variable);
6356 9063 : gfc_traverse_ns (ns, create_module_nml_decl);
6357 :
6358 9063 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
6359 18 : generate_coarray_init (ns);
6360 :
6361 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
6362 : especially as some late diagnostic is only done on tree level. */
6363 9063 : if (flag_openmp)
6364 1073 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
6365 :
6366 9063 : cur_module = NULL;
6367 :
6368 9063 : gfc_trans_use_stmts (ns);
6369 9063 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
6370 9063 : }
6371 :
6372 :
6373 : static void
6374 84658 : gfc_generate_contained_functions (gfc_namespace * parent)
6375 : {
6376 84658 : gfc_namespace *ns;
6377 :
6378 : /* We create all the prototypes before generating any code. */
6379 107623 : for (ns = parent->contained; ns; ns = ns->sibling)
6380 : {
6381 : /* Skip namespaces from used modules. */
6382 22965 : if (ns->parent != parent)
6383 0 : continue;
6384 :
6385 22965 : gfc_create_function_decl (ns, false);
6386 : }
6387 :
6388 107623 : for (ns = parent->contained; ns; ns = ns->sibling)
6389 : {
6390 : /* Skip namespaces from used modules. */
6391 22965 : if (ns->parent != parent)
6392 0 : continue;
6393 :
6394 22965 : gfc_generate_function_code (ns);
6395 : }
6396 84658 : }
6397 :
6398 :
6399 : /* Drill down through expressions for the array specification bounds and
6400 : character length calling generate_local_decl for all those variables
6401 : that have not already been declared. */
6402 :
6403 : static void
6404 : generate_local_decl (gfc_symbol *);
6405 :
6406 : /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */
6407 :
6408 : static bool
6409 113692 : expr_decls (gfc_expr *e, gfc_symbol *sym,
6410 : int *f ATTRIBUTE_UNUSED)
6411 : {
6412 113692 : if (e->expr_type != EXPR_VARIABLE
6413 7969 : || sym == e->symtree->n.sym
6414 7956 : || e->symtree->n.sym->mark
6415 744 : || e->symtree->n.sym->ns != sym->ns)
6416 : return false;
6417 :
6418 744 : generate_local_decl (e->symtree->n.sym);
6419 744 : return false;
6420 : }
6421 :
6422 : static void
6423 151348 : generate_expr_decls (gfc_symbol *sym, gfc_expr *e)
6424 : {
6425 0 : gfc_traverse_expr (e, sym, expr_decls, 0);
6426 1058 : }
6427 :
6428 :
6429 : /* Check for dependencies in the character length and array spec. */
6430 :
6431 : static void
6432 194487 : generate_dependency_declarations (gfc_symbol *sym)
6433 : {
6434 194487 : int i;
6435 :
6436 194487 : if (sym->ts.type == BT_CHARACTER
6437 17316 : && sym->ts.u.cl
6438 17316 : && sym->ts.u.cl->length
6439 14219 : && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT)
6440 1058 : generate_expr_decls (sym, sym->ts.u.cl->length);
6441 :
6442 194487 : if (sym->as && sym->as->rank)
6443 : {
6444 127193 : for (i = 0; i < sym->as->rank; i++)
6445 : {
6446 75145 : generate_expr_decls (sym, sym->as->lower[i]);
6447 75145 : generate_expr_decls (sym, sym->as->upper[i]);
6448 : }
6449 : }
6450 194487 : }
6451 :
6452 :
6453 : /* Generate decls for all local variables. We do this to ensure correct
6454 : handling of expressions which only appear in the specification of
6455 : other functions. */
6456 :
6457 : static void
6458 1085733 : generate_local_decl (gfc_symbol * sym)
6459 : {
6460 1085733 : if (sym->attr.flavor == FL_VARIABLE)
6461 : {
6462 288905 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
6463 582 : && sym->attr.referenced && !sym->attr.use_assoc)
6464 532 : has_coarray_vars_or_accessors = true;
6465 :
6466 288905 : if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master)
6467 194487 : generate_dependency_declarations (sym);
6468 :
6469 288905 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
6470 : {
6471 2 : if (sym->attr.dummy)
6472 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6473 : "dummy argument", sym->name, &sym->declared_at);
6474 : else
6475 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6476 : "local variable", sym->name, &sym->declared_at);
6477 : }
6478 :
6479 288905 : if (sym->attr.referenced)
6480 254586 : gfc_get_symbol_decl (sym);
6481 :
6482 : /* Warnings for unused dummy arguments. */
6483 34319 : else if (sym->attr.dummy && !sym->attr.in_namelist)
6484 : {
6485 : /* INTENT(out) dummy arguments are likely meant to be set. */
6486 6571 : if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT)
6487 : {
6488 9 : if (sym->ts.type != BT_DERIVED)
6489 6 : gfc_warning (OPT_Wunused_dummy_argument,
6490 : "Dummy argument %qs at %L was declared "
6491 : "INTENT(OUT) but was not set", sym->name,
6492 : &sym->declared_at);
6493 3 : else if (!gfc_has_default_initializer (sym->ts.u.derived)
6494 3 : && !sym->ts.u.derived->attr.zero_comp)
6495 1 : gfc_warning (OPT_Wunused_dummy_argument,
6496 : "Derived-type dummy argument %qs at %L was "
6497 : "declared INTENT(OUT) but was not set and "
6498 : "does not have a default initializer",
6499 : sym->name, &sym->declared_at);
6500 9 : if (sym->backend_decl != NULL_TREE)
6501 9 : suppress_warning (sym->backend_decl);
6502 : }
6503 6562 : else if (warn_unused_dummy_argument)
6504 : {
6505 12 : if (!sym->attr.artificial)
6506 4 : gfc_warning (OPT_Wunused_dummy_argument,
6507 : "Unused dummy argument %qs at %L", sym->name,
6508 : &sym->declared_at);
6509 :
6510 12 : if (sym->backend_decl != NULL_TREE)
6511 4 : suppress_warning (sym->backend_decl);
6512 : }
6513 : }
6514 :
6515 : /* Warn for unused variables, but not if they're inside a common
6516 : block or a namelist. */
6517 27748 : else if (warn_unused_variable
6518 45 : && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist))
6519 : {
6520 43 : if (sym->attr.use_only)
6521 : {
6522 1 : gfc_warning (OPT_Wunused_variable,
6523 : "Unused module variable %qs which has been "
6524 : "explicitly imported at %L", sym->name,
6525 : &sym->declared_at);
6526 1 : if (sym->backend_decl != NULL_TREE)
6527 0 : suppress_warning (sym->backend_decl);
6528 : }
6529 42 : else if (!sym->attr.use_assoc)
6530 : {
6531 : /* Corner case: the symbol may be an entry point. At this point,
6532 : it may appear to be an unused variable. Suppress warning. */
6533 8 : bool enter = false;
6534 8 : gfc_entry_list *el;
6535 :
6536 14 : for (el = sym->ns->entries; el; el=el->next)
6537 6 : if (strcmp(sym->name, el->sym->name) == 0)
6538 2 : enter = true;
6539 :
6540 8 : if (!enter)
6541 6 : gfc_warning (OPT_Wunused_variable,
6542 : "Unused variable %qs declared at %L",
6543 : sym->name, &sym->declared_at);
6544 8 : if (sym->backend_decl != NULL_TREE)
6545 0 : suppress_warning (sym->backend_decl);
6546 : }
6547 : }
6548 :
6549 : /* For variable length CHARACTER parameters, the PARM_DECL already
6550 : references the length variable, so force gfc_get_symbol_decl
6551 : even when not referenced. If optimize > 0, it will be optimized
6552 : away anyway. But do this only after emitting -Wunused-parameter
6553 : warning if requested. */
6554 288905 : if (sym->attr.dummy && !sym->attr.referenced
6555 6574 : && sym->ts.type == BT_CHARACTER
6556 815 : && sym->ts.u.cl->backend_decl != NULL
6557 810 : && VAR_P (sym->ts.u.cl->backend_decl))
6558 : {
6559 6 : sym->attr.referenced = 1;
6560 6 : gfc_get_symbol_decl (sym);
6561 : }
6562 :
6563 : /* INTENT(out) dummy arguments and result variables with allocatable
6564 : components are reset by default and need to be set referenced to
6565 : generate the code for nullification and automatic lengths. */
6566 288905 : if (!sym->attr.referenced
6567 34313 : && sym->ts.type == BT_DERIVED
6568 20431 : && sym->ts.u.derived->attr.alloc_comp
6569 1612 : && !sym->attr.pointer
6570 1611 : && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT)
6571 1575 : ||
6572 1575 : (sym->attr.result && sym != sym->result)))
6573 : {
6574 36 : sym->attr.referenced = 1;
6575 36 : gfc_get_symbol_decl (sym);
6576 : }
6577 :
6578 : /* Check for dependencies in the array specification and string
6579 : length, adding the necessary declarations to the function. We
6580 : mark the symbol now, as well as in traverse_ns, to prevent
6581 : getting stuck in a circular dependency. */
6582 288905 : sym->mark = 1;
6583 : }
6584 796828 : else if (sym->attr.flavor == FL_PARAMETER)
6585 : {
6586 206763 : if (warn_unused_parameter
6587 488 : && !sym->attr.referenced)
6588 : {
6589 431 : if (!sym->attr.use_assoc)
6590 4 : gfc_warning (OPT_Wunused_parameter,
6591 : "Unused parameter %qs declared at %L", sym->name,
6592 : &sym->declared_at);
6593 427 : else if (sym->attr.use_only)
6594 1 : gfc_warning (OPT_Wunused_parameter,
6595 : "Unused parameter %qs which has been explicitly "
6596 : "imported at %L", sym->name, &sym->declared_at);
6597 : }
6598 :
6599 206763 : if (sym->ns && sym->ns->construct_entities)
6600 : {
6601 : /* Construction of the intrinsic modules within a BLOCK
6602 : construct, where ONLY and RENAMED entities are included,
6603 : seems to be bogus. This is a workaround that can be removed
6604 : if someone ever takes on the task to creating full-fledge
6605 : modules. See PR 69455. */
6606 78 : if (sym->attr.referenced
6607 78 : && sym->from_intmod != INTMOD_ISO_C_BINDING
6608 54 : && sym->from_intmod != INTMOD_ISO_FORTRAN_ENV)
6609 26 : gfc_get_symbol_decl (sym);
6610 78 : sym->mark = 1;
6611 : }
6612 : }
6613 590065 : else if (sym->attr.flavor == FL_PROCEDURE)
6614 : {
6615 : /* TODO: move to the appropriate place in resolve.cc. */
6616 490406 : if (warn_return_type > 0
6617 4704 : && sym->attr.function
6618 3430 : && sym->result
6619 3222 : && sym != sym->result
6620 444 : && !sym->result->attr.referenced
6621 36 : && !sym->attr.use_assoc
6622 23 : && sym->attr.if_source != IFSRC_IFBODY)
6623 : {
6624 23 : gfc_warning (OPT_Wreturn_type,
6625 : "Return value %qs of function %qs declared at "
6626 : "%L not set", sym->result->name, sym->name,
6627 : &sym->result->declared_at);
6628 :
6629 : /* Prevents "Unused variable" warning for RESULT variables. */
6630 23 : sym->result->mark = 1;
6631 : }
6632 : }
6633 :
6634 1085733 : if (sym->attr.dummy == 1)
6635 : {
6636 : /* The tree type for scalar character dummy arguments of BIND(C)
6637 : procedures, if they are passed by value, should be unsigned char.
6638 : The value attribute implies the dummy is a scalar. */
6639 101185 : if (sym->attr.value == 1 && sym->backend_decl != NULL
6640 8417 : && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop
6641 254 : && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c)
6642 : {
6643 : /* We used to modify the tree here. Now it is done earlier in
6644 : the front-end, so we only check it here to avoid regressions. */
6645 242 : gcc_assert (TREE_CODE (TREE_TYPE (sym->backend_decl)) == INTEGER_TYPE);
6646 242 : gcc_assert (TYPE_UNSIGNED (TREE_TYPE (sym->backend_decl)) == 1);
6647 242 : gcc_assert (TYPE_PRECISION (TREE_TYPE (sym->backend_decl)) == CHAR_TYPE_SIZE);
6648 242 : gcc_assert (DECL_BY_REFERENCE (sym->backend_decl) == 0);
6649 : }
6650 :
6651 : /* Unused procedure passed as dummy argument. */
6652 101185 : if (sym->attr.flavor == FL_PROCEDURE)
6653 : {
6654 925 : if (!sym->attr.referenced && !sym->attr.artificial)
6655 : {
6656 58 : if (warn_unused_dummy_argument)
6657 2 : gfc_warning (OPT_Wunused_dummy_argument,
6658 : "Unused dummy argument %qs at %L", sym->name,
6659 : &sym->declared_at);
6660 : }
6661 :
6662 : /* Silence bogus "unused parameter" warnings from the
6663 : middle end. */
6664 925 : if (sym->backend_decl != NULL_TREE)
6665 924 : suppress_warning (sym->backend_decl);
6666 : }
6667 : }
6668 :
6669 : /* Make sure we convert the types of the derived types from iso_c_binding
6670 : into (void *). */
6671 1085733 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
6672 79868 : && sym->ts.type == BT_DERIVED)
6673 3381 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
6674 1085733 : }
6675 :
6676 :
6677 : static void
6678 1085740 : generate_local_nml_decl (gfc_symbol * sym)
6679 : {
6680 1085740 : if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc)
6681 : {
6682 698 : tree decl = generate_namelist_decl (sym);
6683 698 : pushdecl (decl);
6684 : }
6685 1085740 : }
6686 :
6687 :
6688 : static void
6689 98610 : generate_local_vars (gfc_namespace * ns)
6690 : {
6691 98610 : gfc_traverse_ns (ns, generate_local_decl);
6692 98610 : gfc_traverse_ns (ns, generate_local_nml_decl);
6693 98610 : }
6694 :
6695 :
6696 : /* Generate a switch statement to jump to the correct entry point. Also
6697 : creates the label decls for the entry points. */
6698 :
6699 : static tree
6700 667 : gfc_trans_entry_master_switch (gfc_entry_list * el)
6701 : {
6702 667 : stmtblock_t block;
6703 667 : tree label;
6704 667 : tree tmp;
6705 667 : tree val;
6706 :
6707 667 : gfc_init_block (&block);
6708 2746 : for (; el; el = el->next)
6709 : {
6710 : /* Add the case label. */
6711 1412 : label = gfc_build_label_decl (NULL_TREE);
6712 1412 : val = build_int_cst (gfc_array_index_type, el->id);
6713 1412 : tmp = build_case_label (val, NULL_TREE, label);
6714 1412 : gfc_add_expr_to_block (&block, tmp);
6715 :
6716 : /* And jump to the actual entry point. */
6717 1412 : label = gfc_build_label_decl (NULL_TREE);
6718 1412 : tmp = build1_v (GOTO_EXPR, label);
6719 1412 : gfc_add_expr_to_block (&block, tmp);
6720 :
6721 : /* Save the label decl. */
6722 1412 : el->label = label;
6723 : }
6724 667 : tmp = gfc_finish_block (&block);
6725 : /* The first argument selects the entry point. */
6726 667 : val = DECL_ARGUMENTS (current_function_decl);
6727 667 : tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp);
6728 667 : return tmp;
6729 : }
6730 :
6731 :
6732 : /* Add code to string lengths of actual arguments passed to a function against
6733 : the expected lengths of the dummy arguments. */
6734 :
6735 : static void
6736 2869 : add_argument_checking (stmtblock_t *block, gfc_symbol *sym)
6737 : {
6738 2869 : gfc_formal_arglist *formal;
6739 :
6740 5687 : for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next)
6741 2818 : if (formal->sym && formal->sym->ts.type == BT_CHARACTER
6742 604 : && !formal->sym->ts.deferred)
6743 : {
6744 554 : enum tree_code comparison;
6745 554 : tree cond;
6746 554 : tree argname;
6747 554 : gfc_symbol *fsym;
6748 554 : gfc_charlen *cl;
6749 554 : const char *message;
6750 :
6751 554 : fsym = formal->sym;
6752 554 : cl = fsym->ts.u.cl;
6753 :
6754 554 : gcc_assert (cl);
6755 554 : gcc_assert (cl->passed_length != NULL_TREE);
6756 554 : gcc_assert (cl->backend_decl != NULL_TREE);
6757 :
6758 : /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the
6759 : string lengths must match exactly. Otherwise, it is only required
6760 : that the actual string length is *at least* the expected one.
6761 : Sequence association allows for a mismatch of the string length
6762 : if the actual argument is (part of) an array, but only if the
6763 : dummy argument is an array. (See "Sequence association" in
6764 : Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */
6765 554 : if (fsym->attr.pointer || fsym->attr.allocatable
6766 446 : || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE
6767 33 : || fsym->as->type == AS_ASSUMED_RANK)))
6768 : {
6769 196 : comparison = NE_EXPR;
6770 196 : message = _("Actual string length does not match the declared one"
6771 : " for dummy argument '%s' (%ld/%ld)");
6772 : }
6773 358 : else if ((fsym->as && fsym->as->rank != 0) || fsym->attr.artificial)
6774 33 : continue;
6775 : else
6776 : {
6777 325 : comparison = LT_EXPR;
6778 325 : message = _("Actual string length is shorter than the declared one"
6779 : " for dummy argument '%s' (%ld/%ld)");
6780 : }
6781 :
6782 : /* Build the condition. For optional arguments, an actual length
6783 : of 0 is also acceptable if the associated string is NULL, which
6784 : means the argument was not passed. */
6785 521 : cond = fold_build2_loc (input_location, comparison, logical_type_node,
6786 : cl->passed_length, cl->backend_decl);
6787 521 : if (fsym->attr.optional)
6788 : {
6789 45 : tree not_absent;
6790 45 : tree not_0length;
6791 45 : tree absent_failed;
6792 :
6793 45 : not_0length = fold_build2_loc (input_location, NE_EXPR,
6794 : logical_type_node,
6795 : cl->passed_length,
6796 : build_zero_cst
6797 45 : (TREE_TYPE (cl->passed_length)));
6798 : /* The symbol needs to be referenced for gfc_get_symbol_decl. */
6799 45 : fsym->attr.referenced = 1;
6800 45 : not_absent = gfc_conv_expr_present (fsym);
6801 :
6802 45 : absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR,
6803 : logical_type_node, not_0length,
6804 : not_absent);
6805 :
6806 45 : cond = fold_build2_loc (input_location, TRUTH_AND_EXPR,
6807 : logical_type_node, cond, absent_failed);
6808 : }
6809 :
6810 : /* Build the runtime check. */
6811 521 : argname = gfc_build_cstring_const (fsym->name);
6812 521 : argname = gfc_build_addr_expr (pchar_type_node, argname);
6813 521 : gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at,
6814 : message, argname,
6815 : fold_convert (long_integer_type_node,
6816 : cl->passed_length),
6817 : fold_convert (long_integer_type_node,
6818 : cl->backend_decl));
6819 : }
6820 2869 : }
6821 :
6822 :
6823 : static void
6824 26136 : create_main_function (tree fndecl)
6825 : {
6826 26136 : tree old_context;
6827 26136 : tree ftn_main;
6828 26136 : tree tmp, decl, result_decl, argc, argv, typelist, arglist;
6829 26136 : stmtblock_t body;
6830 :
6831 26136 : old_context = current_function_decl;
6832 :
6833 26136 : if (old_context)
6834 : {
6835 0 : push_function_context ();
6836 0 : saved_parent_function_decls = saved_function_decls;
6837 0 : saved_function_decls = NULL_TREE;
6838 : }
6839 :
6840 : /* main() function must be declared with global scope. */
6841 26136 : gcc_assert (current_function_decl == NULL_TREE);
6842 :
6843 : /* Declare the function. */
6844 26136 : tmp = build_function_type_list (integer_type_node, integer_type_node,
6845 : build_pointer_type (pchar_type_node),
6846 : NULL_TREE);
6847 26136 : main_identifier_node = get_identifier ("main");
6848 26136 : ftn_main = build_decl (input_location, FUNCTION_DECL,
6849 : main_identifier_node, tmp);
6850 26136 : DECL_EXTERNAL (ftn_main) = 0;
6851 26136 : TREE_PUBLIC (ftn_main) = 1;
6852 26136 : TREE_STATIC (ftn_main) = 1;
6853 26136 : DECL_ATTRIBUTES (ftn_main)
6854 26136 : = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE);
6855 :
6856 : /* Setup the result declaration (for "return 0"). */
6857 26136 : result_decl = build_decl (input_location,
6858 : RESULT_DECL, NULL_TREE, integer_type_node);
6859 26136 : DECL_ARTIFICIAL (result_decl) = 1;
6860 26136 : DECL_IGNORED_P (result_decl) = 1;
6861 26136 : DECL_CONTEXT (result_decl) = ftn_main;
6862 26136 : DECL_RESULT (ftn_main) = result_decl;
6863 :
6864 26136 : pushdecl (ftn_main);
6865 :
6866 : /* Get the arguments. */
6867 :
6868 26136 : arglist = NULL_TREE;
6869 26136 : typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main));
6870 :
6871 26136 : tmp = TREE_VALUE (typelist);
6872 26136 : argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp);
6873 26136 : DECL_CONTEXT (argc) = ftn_main;
6874 26136 : DECL_ARG_TYPE (argc) = TREE_VALUE (typelist);
6875 26136 : TREE_READONLY (argc) = 1;
6876 26136 : gfc_finish_decl (argc);
6877 26136 : arglist = chainon (arglist, argc);
6878 :
6879 26136 : typelist = TREE_CHAIN (typelist);
6880 26136 : tmp = TREE_VALUE (typelist);
6881 26136 : argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp);
6882 26136 : DECL_CONTEXT (argv) = ftn_main;
6883 26136 : DECL_ARG_TYPE (argv) = TREE_VALUE (typelist);
6884 26136 : TREE_READONLY (argv) = 1;
6885 26136 : DECL_BY_REFERENCE (argv) = 1;
6886 26136 : gfc_finish_decl (argv);
6887 26136 : arglist = chainon (arglist, argv);
6888 :
6889 26136 : DECL_ARGUMENTS (ftn_main) = arglist;
6890 26136 : current_function_decl = ftn_main;
6891 26136 : announce_function (ftn_main);
6892 :
6893 26136 : rest_of_decl_compilation (ftn_main, 1, 0);
6894 26136 : make_decl_rtl (ftn_main);
6895 26136 : allocate_struct_function (ftn_main, false);
6896 26136 : pushlevel ();
6897 :
6898 26136 : gfc_init_block (&body);
6899 :
6900 : /* Call some libgfortran initialization routines, call then MAIN__(). */
6901 :
6902 : /* Call _gfortran_caf_init (*argc, ***argv). */
6903 26136 : if (flag_coarray == GFC_FCOARRAY_LIB)
6904 : {
6905 396 : tree pint_type, pppchar_type;
6906 396 : pint_type = build_pointer_type (integer_type_node);
6907 396 : pppchar_type
6908 396 : = build_pointer_type (build_pointer_type (pchar_type_node));
6909 :
6910 396 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2,
6911 : gfc_build_addr_expr (pint_type, argc),
6912 : gfc_build_addr_expr (pppchar_type, argv));
6913 396 : gfc_add_expr_to_block (&body, tmp);
6914 : }
6915 :
6916 : /* Call _gfortran_set_args (argc, argv). */
6917 26136 : TREE_USED (argc) = 1;
6918 26136 : TREE_USED (argv) = 1;
6919 26136 : tmp = build_call_expr_loc (input_location,
6920 : gfor_fndecl_set_args, 2, argc, argv);
6921 26136 : gfc_add_expr_to_block (&body, tmp);
6922 :
6923 : /* Add a call to set_options to set up the runtime library Fortran
6924 : language standard parameters. */
6925 26136 : {
6926 26136 : tree array_type, array, var;
6927 26136 : vec<constructor_elt, va_gc> *v = NULL;
6928 26136 : static const int noptions = 7;
6929 :
6930 : /* Passing a new option to the library requires three modifications:
6931 : + add it to the tree_cons list below
6932 : + change the noptions variable above
6933 : + modify the library (runtime/compile_options.c)! */
6934 :
6935 26136 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6936 : build_int_cst (integer_type_node,
6937 : gfc_option.warn_std));
6938 26136 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6939 : build_int_cst (integer_type_node,
6940 : gfc_option.allow_std));
6941 26136 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6942 : build_int_cst (integer_type_node, pedantic));
6943 26136 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6944 : build_int_cst (integer_type_node, flag_backtrace));
6945 26136 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6946 : build_int_cst (integer_type_node, flag_sign_zero));
6947 26136 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6948 : build_int_cst (integer_type_node,
6949 : (gfc_option.rtcheck
6950 : & GFC_RTCHECK_BOUNDS)));
6951 26136 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6952 : build_int_cst (integer_type_node,
6953 : gfc_option.fpe_summary));
6954 :
6955 26136 : array_type = build_array_type_nelts (integer_type_node, noptions);
6956 26136 : array = build_constructor (array_type, v);
6957 26136 : TREE_CONSTANT (array) = 1;
6958 26136 : TREE_STATIC (array) = 1;
6959 :
6960 : /* Create a static variable to hold the jump table. */
6961 26136 : var = build_decl (input_location, VAR_DECL,
6962 : create_tmp_var_name ("options"), array_type);
6963 26136 : DECL_ARTIFICIAL (var) = 1;
6964 26136 : DECL_IGNORED_P (var) = 1;
6965 26136 : TREE_CONSTANT (var) = 1;
6966 26136 : TREE_STATIC (var) = 1;
6967 26136 : TREE_READONLY (var) = 1;
6968 26136 : DECL_INITIAL (var) = array;
6969 26136 : pushdecl (var);
6970 26136 : var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var);
6971 :
6972 26136 : tmp = build_call_expr_loc (input_location,
6973 : gfor_fndecl_set_options, 2,
6974 : build_int_cst (integer_type_node, noptions), var);
6975 26136 : gfc_add_expr_to_block (&body, tmp);
6976 : }
6977 :
6978 : /* If -ffpe-trap option was provided, add a call to set_fpe so that
6979 : the library will raise a FPE when needed. */
6980 26136 : if (gfc_option.fpe != 0)
6981 : {
6982 6 : tmp = build_call_expr_loc (input_location,
6983 : gfor_fndecl_set_fpe, 1,
6984 : build_int_cst (integer_type_node,
6985 6 : gfc_option.fpe));
6986 6 : gfc_add_expr_to_block (&body, tmp);
6987 : }
6988 :
6989 : /* If this is the main program and an -fconvert option was provided,
6990 : add a call to set_convert. */
6991 :
6992 26136 : if (flag_convert != GFC_FLAG_CONVERT_NATIVE)
6993 : {
6994 12 : tmp = build_call_expr_loc (input_location,
6995 : gfor_fndecl_set_convert, 1,
6996 12 : build_int_cst (integer_type_node, flag_convert));
6997 12 : gfc_add_expr_to_block (&body, tmp);
6998 : }
6999 :
7000 : /* If this is the main program and an -frecord-marker option was provided,
7001 : add a call to set_record_marker. */
7002 :
7003 26136 : if (flag_record_marker != 0)
7004 : {
7005 18 : tmp = build_call_expr_loc (input_location,
7006 : gfor_fndecl_set_record_marker, 1,
7007 : build_int_cst (integer_type_node,
7008 18 : flag_record_marker));
7009 18 : gfc_add_expr_to_block (&body, tmp);
7010 : }
7011 :
7012 26136 : if (flag_max_subrecord_length != 0)
7013 : {
7014 6 : tmp = build_call_expr_loc (input_location,
7015 : gfor_fndecl_set_max_subrecord_length, 1,
7016 : build_int_cst (integer_type_node,
7017 6 : flag_max_subrecord_length));
7018 6 : gfc_add_expr_to_block (&body, tmp);
7019 : }
7020 :
7021 : /* Call MAIN__(). */
7022 26136 : tmp = build_call_expr_loc (input_location,
7023 : fndecl, 0);
7024 26136 : gfc_add_expr_to_block (&body, tmp);
7025 :
7026 : /* Mark MAIN__ as used. */
7027 26136 : TREE_USED (fndecl) = 1;
7028 :
7029 : /* Coarray: Call _gfortran_caf_finalize(void). */
7030 26136 : if (flag_coarray == GFC_FCOARRAY_LIB)
7031 : {
7032 396 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0);
7033 396 : gfc_add_expr_to_block (&body, tmp);
7034 : }
7035 :
7036 : /* "return 0". */
7037 26136 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node,
7038 26136 : DECL_RESULT (ftn_main),
7039 : integer_zero_node);
7040 26136 : tmp = build1_v (RETURN_EXPR, tmp);
7041 26136 : gfc_add_expr_to_block (&body, tmp);
7042 :
7043 :
7044 26136 : DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body);
7045 26136 : decl = getdecls ();
7046 :
7047 : /* Finish off this function and send it for code generation. */
7048 26136 : poplevel (1, 1);
7049 26136 : BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main;
7050 :
7051 52272 : DECL_SAVED_TREE (ftn_main)
7052 52272 : = fold_build3_loc (DECL_SOURCE_LOCATION (ftn_main), BIND_EXPR,
7053 26136 : void_type_node, decl, DECL_SAVED_TREE (ftn_main),
7054 26136 : DECL_INITIAL (ftn_main));
7055 :
7056 : /* Output the GENERIC tree. */
7057 26136 : dump_function (TDI_original, ftn_main);
7058 :
7059 26136 : cgraph_node::finalize_function (ftn_main, true);
7060 :
7061 26136 : if (old_context)
7062 : {
7063 0 : pop_function_context ();
7064 0 : saved_function_decls = saved_parent_function_decls;
7065 : }
7066 26136 : current_function_decl = old_context;
7067 26136 : }
7068 :
7069 :
7070 : /* Generate an appropriate return-statement for a procedure. */
7071 :
7072 : tree
7073 15045 : gfc_generate_return (void)
7074 : {
7075 15045 : gfc_symbol* sym;
7076 15045 : tree result;
7077 15045 : tree fndecl;
7078 :
7079 15045 : sym = current_procedure_symbol;
7080 15045 : fndecl = sym->backend_decl;
7081 :
7082 15045 : if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node)
7083 : result = NULL_TREE;
7084 : else
7085 : {
7086 12752 : result = get_proc_result (sym);
7087 :
7088 : /* Set the return value to the dummy result variable. The
7089 : types may be different for scalar default REAL functions
7090 : with -ff2c, therefore we have to convert. */
7091 12752 : if (result != NULL_TREE)
7092 : {
7093 12741 : result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result);
7094 25482 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7095 12741 : TREE_TYPE (result), DECL_RESULT (fndecl),
7096 : result);
7097 : }
7098 : else
7099 : {
7100 : /* If the function does not have a result variable, result is
7101 : NULL_TREE, and a 'return' is generated without a variable.
7102 : The following generates a 'return __result_XXX' where XXX is
7103 : the function name. */
7104 11 : if (sym == sym->result && sym->attr.function && !flag_f2c)
7105 : {
7106 8 : result = gfc_get_fake_result_decl (sym, 0);
7107 16 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7108 8 : TREE_TYPE (result),
7109 8 : DECL_RESULT (fndecl), result);
7110 : }
7111 : }
7112 : }
7113 :
7114 15045 : return build1_v (RETURN_EXPR, result);
7115 : }
7116 :
7117 :
7118 : static void
7119 1055148 : is_from_ieee_module (gfc_symbol *sym)
7120 : {
7121 1055148 : if (sym->from_intmod == INTMOD_IEEE_FEATURES
7122 : || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS
7123 1055148 : || sym->from_intmod == INTMOD_IEEE_ARITHMETIC)
7124 121726 : seen_ieee_symbol = 1;
7125 1055148 : }
7126 :
7127 :
7128 : static int
7129 84658 : is_ieee_module_used (gfc_namespace *ns)
7130 : {
7131 84658 : seen_ieee_symbol = 0;
7132 0 : gfc_traverse_ns (ns, is_from_ieee_module);
7133 84658 : return seen_ieee_symbol;
7134 : }
7135 :
7136 :
7137 : static gfc_omp_clauses *module_oacc_clauses;
7138 :
7139 :
7140 : static void
7141 146 : add_clause (gfc_symbol *sym, gfc_omp_map_op map_op)
7142 : {
7143 146 : gfc_omp_namelist *n;
7144 :
7145 146 : n = gfc_get_omp_namelist ();
7146 146 : n->sym = sym;
7147 146 : n->where = sym->declared_at;
7148 146 : n->u.map.op = map_op;
7149 :
7150 146 : if (!module_oacc_clauses)
7151 124 : module_oacc_clauses = gfc_get_omp_clauses ();
7152 :
7153 146 : if (module_oacc_clauses->lists[OMP_LIST_MAP])
7154 22 : n->next = module_oacc_clauses->lists[OMP_LIST_MAP];
7155 :
7156 146 : module_oacc_clauses->lists[OMP_LIST_MAP] = n;
7157 146 : }
7158 :
7159 :
7160 : static void
7161 1085740 : find_module_oacc_declare_clauses (gfc_symbol *sym)
7162 : {
7163 1085740 : if (sym->attr.use_assoc)
7164 : {
7165 508986 : gfc_omp_map_op map_op;
7166 :
7167 508986 : if (sym->attr.oacc_declare_create)
7168 508986 : map_op = OMP_MAP_FORCE_ALLOC;
7169 :
7170 508986 : if (sym->attr.oacc_declare_copyin)
7171 2 : map_op = OMP_MAP_FORCE_TO;
7172 :
7173 508986 : if (sym->attr.oacc_declare_deviceptr)
7174 0 : map_op = OMP_MAP_FORCE_DEVICEPTR;
7175 :
7176 508986 : if (sym->attr.oacc_declare_device_resident)
7177 34 : map_op = OMP_MAP_DEVICE_RESIDENT;
7178 :
7179 508986 : if (sym->attr.oacc_declare_create
7180 508876 : || sym->attr.oacc_declare_copyin
7181 508874 : || sym->attr.oacc_declare_deviceptr
7182 508874 : || sym->attr.oacc_declare_device_resident)
7183 : {
7184 146 : sym->attr.referenced = 1;
7185 146 : add_clause (sym, map_op);
7186 : }
7187 : }
7188 1085740 : }
7189 :
7190 :
7191 : void
7192 98610 : finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block)
7193 : {
7194 98610 : gfc_code *code;
7195 98610 : gfc_oacc_declare *oc;
7196 98610 : locus where;
7197 98610 : gfc_omp_clauses *omp_clauses = NULL;
7198 98610 : gfc_omp_namelist *n, *p;
7199 98610 : module_oacc_clauses = NULL;
7200 :
7201 98610 : gfc_locus_from_location (&where, input_location);
7202 98610 : gfc_traverse_ns (ns, find_module_oacc_declare_clauses);
7203 :
7204 98610 : if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM)
7205 : {
7206 45 : gfc_oacc_declare *new_oc;
7207 :
7208 45 : new_oc = gfc_get_oacc_declare ();
7209 45 : new_oc->next = ns->oacc_declare;
7210 45 : new_oc->clauses = module_oacc_clauses;
7211 :
7212 45 : ns->oacc_declare = new_oc;
7213 : }
7214 :
7215 98610 : if (!ns->oacc_declare)
7216 : return;
7217 :
7218 190 : for (oc = ns->oacc_declare; oc; oc = oc->next)
7219 : {
7220 101 : if (oc->module_var)
7221 0 : continue;
7222 :
7223 101 : if (block)
7224 2 : gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed "
7225 : "in BLOCK construct", &oc->loc);
7226 :
7227 :
7228 101 : if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP])
7229 : {
7230 88 : if (omp_clauses == NULL)
7231 : {
7232 76 : omp_clauses = oc->clauses;
7233 76 : continue;
7234 : }
7235 :
7236 48 : for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next)
7237 : ;
7238 :
7239 12 : gcc_assert (p->next == NULL);
7240 :
7241 12 : p->next = omp_clauses->lists[OMP_LIST_MAP];
7242 12 : omp_clauses = oc->clauses;
7243 : }
7244 : }
7245 :
7246 89 : if (!omp_clauses)
7247 : return;
7248 :
7249 212 : for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next)
7250 : {
7251 136 : switch (n->u.map.op)
7252 : {
7253 27 : case OMP_MAP_DEVICE_RESIDENT:
7254 27 : n->u.map.op = OMP_MAP_FORCE_ALLOC;
7255 27 : break;
7256 :
7257 : default:
7258 : break;
7259 : }
7260 : }
7261 :
7262 76 : code = XCNEW (gfc_code);
7263 76 : code->op = EXEC_OACC_DECLARE;
7264 76 : code->loc = where;
7265 :
7266 76 : code->ext.oacc_declare = gfc_get_oacc_declare ();
7267 76 : code->ext.oacc_declare->clauses = omp_clauses;
7268 :
7269 76 : code->block = XCNEW (gfc_code);
7270 76 : code->block->op = EXEC_OACC_DECLARE;
7271 76 : code->block->loc = where;
7272 :
7273 76 : if (ns->code)
7274 73 : code->block->next = ns->code;
7275 :
7276 76 : ns->code = code;
7277 :
7278 76 : return;
7279 : }
7280 :
7281 : static void
7282 1819 : gfc_conv_cfi_to_gfc (stmtblock_t *init, stmtblock_t *finally,
7283 : tree cfi_desc, tree gfc_desc, gfc_symbol *sym)
7284 : {
7285 1819 : stmtblock_t block;
7286 1819 : gfc_init_block (&block);
7287 1819 : tree cfi = build_fold_indirect_ref_loc (input_location, cfi_desc);
7288 1819 : tree idx, etype, tmp, tmp2, size_var = NULL_TREE, rank = NULL_TREE;
7289 1819 : bool do_copy_inout = false;
7290 :
7291 : /* When allocatable + intent out, free the cfi descriptor. */
7292 1819 : if (sym->attr.allocatable && sym->attr.intent == INTENT_OUT)
7293 : {
7294 54 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7295 54 : tree call = builtin_decl_explicit (BUILT_IN_FREE);
7296 54 : call = build_call_expr_loc (input_location, call, 1, tmp);
7297 54 : gfc_add_expr_to_block (&block, fold_convert (void_type_node, call));
7298 54 : gfc_add_modify (&block, tmp,
7299 54 : fold_convert (TREE_TYPE (tmp), null_pointer_node));
7300 : }
7301 :
7302 : /* -fcheck=bound: Do version, rank, attribute, type and is-NULL checks. */
7303 1819 : if (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
7304 : {
7305 654 : char *msg;
7306 654 : tree tmp3;
7307 654 : msg = xasprintf ("Unexpected version %%d (expected %d) in CFI descriptor "
7308 : "passed to dummy argument %s", CFI_VERSION, sym->name);
7309 654 : tmp2 = gfc_get_cfi_desc_version (cfi);
7310 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node, tmp2,
7311 654 : build_int_cst (TREE_TYPE (tmp2), CFI_VERSION));
7312 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7313 : msg, tmp2);
7314 654 : free (msg);
7315 :
7316 : /* Rank check; however, for character(len=*), assumed/explicit-size arrays
7317 : are permitted to differ in rank according to the Fortran rules. */
7318 654 : if (sym->as && sym->as->type != AS_ASSUMED_SIZE
7319 546 : && sym->as->type != AS_EXPLICIT)
7320 : {
7321 438 : if (sym->as->rank != -1)
7322 222 : msg = xasprintf ("Invalid rank %%d (expected %d) in CFI descriptor "
7323 : "passed to dummy argument %s", sym->as->rank,
7324 : sym->name);
7325 : else
7326 216 : msg = xasprintf ("Invalid rank %%d (expected 0..%d) in CFI "
7327 : "descriptor passed to dummy argument %s",
7328 : CFI_MAX_RANK, sym->name);
7329 :
7330 438 : tmp3 = tmp2 = tmp = gfc_get_cfi_desc_rank (cfi);
7331 438 : if (sym->as->rank != -1)
7332 222 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7333 : tmp, build_int_cst (signed_char_type_node,
7334 222 : sym->as->rank));
7335 : else
7336 : {
7337 216 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node,
7338 216 : tmp, build_zero_cst (TREE_TYPE (tmp)));
7339 216 : tmp2 = fold_build2_loc (input_location, GT_EXPR,
7340 : boolean_type_node, tmp2,
7341 216 : build_int_cst (TREE_TYPE (tmp2),
7342 : CFI_MAX_RANK));
7343 216 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7344 : boolean_type_node, tmp, tmp2);
7345 : }
7346 438 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7347 : msg, tmp3);
7348 438 : free (msg);
7349 : }
7350 :
7351 654 : tmp3 = tmp = gfc_get_cfi_desc_attribute (cfi);
7352 654 : if (sym->attr.allocatable || sym->attr.pointer)
7353 : {
7354 6 : int attr = (sym->attr.pointer ? CFI_attribute_pointer
7355 : : CFI_attribute_allocatable);
7356 12 : msg = xasprintf ("Invalid attribute %%d (expected %d) in CFI "
7357 : "descriptor passed to dummy argument %s with %s "
7358 : "attribute", attr, sym->name,
7359 : sym->attr.pointer ? "pointer" : "allocatable");
7360 6 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7361 6 : tmp, build_int_cst (TREE_TYPE (tmp), attr));
7362 6 : }
7363 : else
7364 : {
7365 648 : int amin = MIN (CFI_attribute_pointer,
7366 : MIN (CFI_attribute_allocatable, CFI_attribute_other));
7367 648 : int amax = MAX (CFI_attribute_pointer,
7368 : MAX (CFI_attribute_allocatable, CFI_attribute_other));
7369 648 : msg = xasprintf ("Invalid attribute %%d (expected %d..%d) in CFI "
7370 : "descriptor passed to nonallocatable, nonpointer "
7371 : "dummy argument %s", amin, amax, sym->name);
7372 648 : tmp2 = tmp;
7373 648 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node, tmp,
7374 648 : build_int_cst (TREE_TYPE (tmp), amin));
7375 648 : tmp2 = fold_build2_loc (input_location, GT_EXPR, boolean_type_node, tmp2,
7376 648 : build_int_cst (TREE_TYPE (tmp2), amax));
7377 648 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7378 : boolean_type_node, tmp, tmp2);
7379 648 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7380 : msg, tmp3);
7381 648 : free (msg);
7382 648 : msg = xasprintf ("Invalid unallocatated/unassociated CFI "
7383 : "descriptor passed to nonallocatable, nonpointer "
7384 : "dummy argument %s", sym->name);
7385 648 : tmp3 = tmp = gfc_get_cfi_desc_base_addr (cfi),
7386 648 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7387 : tmp, null_pointer_node);
7388 : }
7389 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7390 : msg, tmp3);
7391 654 : free (msg);
7392 :
7393 654 : if (sym->ts.type != BT_ASSUMED)
7394 : {
7395 654 : int type = CFI_type_other;
7396 654 : if (sym->ts.f90_type == BT_VOID)
7397 : {
7398 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7399 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7400 : }
7401 : else
7402 654 : switch (sym->ts.type)
7403 : {
7404 6 : case BT_INTEGER:
7405 6 : case BT_LOGICAL:
7406 6 : case BT_REAL:
7407 6 : case BT_COMPLEX:
7408 6 : type = CFI_type_from_type_kind (sym->ts.type, sym->ts.kind);
7409 6 : break;
7410 648 : case BT_CHARACTER:
7411 648 : type = CFI_type_from_type_kind (CFI_type_Character,
7412 : sym->ts.kind);
7413 648 : break;
7414 0 : case BT_DERIVED:
7415 0 : type = CFI_type_struct;
7416 0 : break;
7417 0 : case BT_VOID:
7418 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7419 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7420 : break;
7421 :
7422 0 : case BT_UNSIGNED:
7423 0 : gfc_internal_error ("Unsigned not yet implemented");
7424 :
7425 0 : case BT_ASSUMED:
7426 0 : case BT_CLASS:
7427 0 : case BT_PROCEDURE:
7428 0 : case BT_HOLLERITH:
7429 0 : case BT_UNION:
7430 0 : case BT_BOZ:
7431 0 : case BT_UNKNOWN:
7432 0 : gcc_unreachable ();
7433 : }
7434 654 : msg = xasprintf ("Unexpected type %%d (expected %d) in CFI descriptor"
7435 : " passed to dummy argument %s", type, sym->name);
7436 654 : tmp2 = tmp = gfc_get_cfi_desc_type (cfi);
7437 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7438 654 : tmp, build_int_cst (TREE_TYPE (tmp), type));
7439 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7440 : msg, tmp2);
7441 654 : free (msg);
7442 : }
7443 : }
7444 :
7445 1819 : if (!sym->attr.referenced)
7446 72 : goto done;
7447 :
7448 : /* Set string length for len=* and len=:, otherwise, it is already set. */
7449 1747 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
7450 : {
7451 647 : tmp = fold_convert (gfc_array_index_type,
7452 : gfc_get_cfi_desc_elem_len (cfi));
7453 647 : if (sym->ts.kind != 1)
7454 197 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7455 : gfc_array_index_type, tmp,
7456 : build_int_cst (gfc_charlen_type_node,
7457 197 : sym->ts.kind));
7458 647 : gfc_add_modify (&block, sym->ts.u.cl->backend_decl, tmp);
7459 : }
7460 :
7461 1747 : if (sym->ts.type == BT_CHARACTER
7462 1020 : && !INTEGER_CST_P (sym->ts.u.cl->backend_decl))
7463 : {
7464 804 : gfc_conv_string_length (sym->ts.u.cl, NULL, &block);
7465 804 : gfc_trans_vla_type_sizes (sym, &block);
7466 : }
7467 :
7468 : /* gfc->data = cfi->base_addr - or for scalars: gfc = cfi->base_addr.
7469 : assumed-size/explicit-size arrays end up here for character(len=*)
7470 : only. */
7471 1747 : if (!sym->attr.dimension || !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7472 : {
7473 418 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7474 418 : gfc_add_modify (&block, gfc_desc,
7475 418 : fold_convert (TREE_TYPE (gfc_desc), tmp));
7476 418 : if (!sym->attr.dimension)
7477 164 : goto done;
7478 : }
7479 :
7480 1583 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7481 : {
7482 : /* gfc->dtype = ... (from declaration, not from cfi). */
7483 1329 : etype = gfc_get_element_type (TREE_TYPE (gfc_desc));
7484 1329 : gfc_add_modify (&block, gfc_conv_descriptor_dtype (gfc_desc),
7485 1329 : gfc_get_dtype_rank_type (sym->as->rank, etype));
7486 : /* gfc->data = cfi->base_addr. */
7487 1329 : gfc_conv_descriptor_data_set (&block, gfc_desc,
7488 : gfc_get_cfi_desc_base_addr (cfi));
7489 : }
7490 :
7491 1583 : if (sym->ts.type == BT_ASSUMED)
7492 : {
7493 : /* For type(*), take elem_len + dtype.type from the actual argument. */
7494 19 : gfc_add_modify (&block, gfc_conv_descriptor_elem_len (gfc_desc),
7495 : gfc_get_cfi_desc_elem_len (cfi));
7496 19 : tree cond;
7497 19 : tree ctype = gfc_get_cfi_desc_type (cfi);
7498 19 : ctype = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (ctype),
7499 19 : ctype, build_int_cst (TREE_TYPE (ctype),
7500 : CFI_type_mask));
7501 19 : tree type = gfc_conv_descriptor_type (gfc_desc);
7502 :
7503 : /* if (CFI_type_cptr) BT_VOID else BT_UNKNOWN */
7504 : /* Note: BT_VOID is could also be CFI_type_funcptr, but assume c_ptr. */
7505 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7506 19 : build_int_cst (TREE_TYPE (ctype), CFI_type_cptr));
7507 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7508 19 : build_int_cst (TREE_TYPE (type), BT_VOID));
7509 19 : tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7510 : type,
7511 19 : build_int_cst (TREE_TYPE (type), BT_UNKNOWN));
7512 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7513 : tmp, tmp2);
7514 : /* if (CFI_type_struct) BT_DERIVED else < tmp2 > */
7515 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7516 19 : build_int_cst (TREE_TYPE (ctype),
7517 : CFI_type_struct));
7518 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7519 19 : build_int_cst (TREE_TYPE (type), BT_DERIVED));
7520 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7521 : tmp, tmp2);
7522 : /* if (CFI_type_Character) BT_CHARACTER else < tmp2 > */
7523 : /* Note: this is kind=1, CFI_type_ucs4_char is handled in the 'else if'
7524 : before (see below, as generated bottom up). */
7525 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7526 19 : build_int_cst (TREE_TYPE (ctype),
7527 : CFI_type_Character));
7528 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7529 19 : build_int_cst (TREE_TYPE (type), BT_CHARACTER));
7530 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7531 : tmp, tmp2);
7532 : /* if (CFI_type_ucs4_char) BT_CHARACTER else < tmp2 > */
7533 : /* Note: gfc->elem_len = cfi->elem_len/4. */
7534 : /* However, assuming that CFI_type_ucs4_char cannot be recovered, leave
7535 : gfc->elem_len == cfi->elem_len, which helps with operations which use
7536 : sizeof() in Fortran and cfi->elem_len in C. */
7537 19 : tmp = gfc_get_cfi_desc_type (cfi);
7538 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, tmp,
7539 19 : build_int_cst (TREE_TYPE (tmp),
7540 : CFI_type_ucs4_char));
7541 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7542 19 : build_int_cst (TREE_TYPE (type), BT_CHARACTER));
7543 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7544 : tmp, tmp2);
7545 : /* if (CFI_type_Complex) BT_COMPLEX + cfi->elem_len/2 else < tmp2 > */
7546 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7547 19 : build_int_cst (TREE_TYPE (ctype),
7548 : CFI_type_Complex));
7549 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7550 19 : build_int_cst (TREE_TYPE (type), BT_COMPLEX));
7551 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7552 : tmp, tmp2);
7553 : /* if (CFI_type_Integer || CFI_type_Logical || CFI_type_Real)
7554 : ctype else <tmp2> */
7555 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7556 19 : build_int_cst (TREE_TYPE (ctype),
7557 : CFI_type_Integer));
7558 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7559 19 : build_int_cst (TREE_TYPE (ctype),
7560 : CFI_type_Logical));
7561 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7562 : cond, tmp);
7563 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7564 19 : build_int_cst (TREE_TYPE (ctype),
7565 : CFI_type_Real));
7566 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7567 : cond, tmp);
7568 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7569 19 : type, fold_convert (TREE_TYPE (type), ctype));
7570 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7571 : tmp, tmp2);
7572 19 : gfc_add_expr_to_block (&block, tmp2);
7573 : }
7574 :
7575 1583 : if (sym->as->rank < 0)
7576 : {
7577 : /* Set gfc->dtype.rank, if assumed-rank. */
7578 587 : rank = gfc_get_cfi_desc_rank (cfi);
7579 587 : gfc_add_modify (&block, gfc_conv_descriptor_rank (gfc_desc), rank);
7580 : }
7581 996 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7582 : /* In that case, the CFI rank and the declared rank can differ. */
7583 254 : rank = gfc_get_cfi_desc_rank (cfi);
7584 : else
7585 742 : rank = build_int_cst (signed_char_type_node, sym->as->rank);
7586 :
7587 : /* With bind(C), the standard requires that both Fortran callers and callees
7588 : handle noncontiguous arrays passed to an dummy with 'contiguous' attribute
7589 : and with character(len=*) + assumed-size/explicit-size arrays.
7590 : cf. Fortran 2018, 18.3.6, paragraph 5 (and for the caller: para. 6). */
7591 1583 : if ((sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length
7592 550 : && (sym->as->type == AS_ASSUMED_SIZE || sym->as->type == AS_EXPLICIT))
7593 1329 : || sym->attr.contiguous)
7594 : {
7595 517 : do_copy_inout = true;
7596 517 : gcc_assert (!sym->attr.pointer);
7597 517 : stmtblock_t block2;
7598 517 : tree data;
7599 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7600 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7601 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7602 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7603 : else
7604 : data = gfc_desc;
7605 :
7606 : /* Is copy-in/out needed? */
7607 : /* do_copyin = rank != 0 && !assumed-size */
7608 517 : tree cond_var = gfc_create_var (boolean_type_node, "do_copyin");
7609 517 : tree cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7610 517 : rank, build_zero_cst (TREE_TYPE (rank)));
7611 : /* dim[rank-1].extent != -1 -> assumed size*/
7612 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (rank),
7613 517 : rank, build_int_cst (TREE_TYPE (rank), 1));
7614 517 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7615 : gfc_get_cfi_dim_extent (cfi, tmp),
7616 : build_int_cst (gfc_array_index_type, -1));
7617 517 : cond = fold_build2_loc (input_location, TRUTH_ANDIF_EXPR,
7618 : boolean_type_node, cond, tmp);
7619 517 : gfc_add_modify (&block, cond_var, cond);
7620 : /* if (do_copyin) do_copyin = ... || ... || ... */
7621 517 : gfc_init_block (&block2);
7622 : /* dim[0].sm != elem_len */
7623 517 : tmp = fold_convert (gfc_array_index_type,
7624 : gfc_get_cfi_desc_elem_len (cfi));
7625 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7626 : gfc_get_cfi_dim_sm (cfi, gfc_index_zero_node),
7627 : tmp);
7628 517 : gfc_add_modify (&block2, cond_var, cond);
7629 :
7630 : /* for (i = 1; i < rank; ++i)
7631 : cond &&= dim[i].sm != (dv->dim[i - 1].sm * dv->dim[i - 1].extent) */
7632 517 : idx = gfc_create_var (TREE_TYPE (rank), "idx");
7633 517 : stmtblock_t loop_body;
7634 517 : gfc_init_block (&loop_body);
7635 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7636 517 : idx, build_int_cst (TREE_TYPE (idx), 1));
7637 517 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, tmp);
7638 517 : tmp = gfc_get_cfi_dim_extent (cfi, tmp);
7639 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp),
7640 : tmp2, tmp);
7641 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7642 : gfc_get_cfi_dim_sm (cfi, idx), tmp);
7643 517 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7644 : cond_var, cond);
7645 517 : gfc_add_modify (&loop_body, cond_var, cond);
7646 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7647 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7648 : gfc_finish_block (&loop_body));
7649 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7650 : build_empty_stmt (input_location));
7651 517 : gfc_add_expr_to_block (&block, tmp);
7652 :
7653 : /* Copy-in body. */
7654 517 : gfc_init_block (&block2);
7655 : /* size = dim[0].extent; for (i = 1; i < rank; ++i) size *= dim[i].extent */
7656 517 : size_var = gfc_create_var (size_type_node, "size");
7657 517 : tmp = fold_convert (size_type_node,
7658 : gfc_get_cfi_dim_extent (cfi, gfc_index_zero_node));
7659 517 : gfc_add_modify (&block2, size_var, tmp);
7660 :
7661 517 : gfc_init_block (&loop_body);
7662 517 : tmp = fold_convert (size_type_node,
7663 : gfc_get_cfi_dim_extent (cfi, idx));
7664 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7665 : size_var, fold_convert (size_type_node, tmp));
7666 517 : gfc_add_modify (&loop_body, size_var, tmp);
7667 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7668 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7669 : gfc_finish_block (&loop_body));
7670 : /* data = malloc (size * elem_len) */
7671 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7672 : size_var, gfc_get_cfi_desc_elem_len (cfi));
7673 517 : tree call = builtin_decl_explicit (BUILT_IN_MALLOC);
7674 517 : call = build_call_expr_loc (input_location, call, 1, tmp);
7675 517 : gfc_add_modify (&block2, data, fold_convert (TREE_TYPE (data), call));
7676 :
7677 : /* Copy the data:
7678 : for (idx = 0; idx < size; ++idx)
7679 : {
7680 : shift = 0;
7681 : tmpidx = idx
7682 : for (dim = 0; dim < rank; ++dim)
7683 : {
7684 : shift += (tmpidx % extent[d]) * sm[d]
7685 : tmpidx = tmpidx / extend[d]
7686 : }
7687 : memcpy (lhs + idx*elem_len, rhs + shift, elem_len)
7688 : } .*/
7689 517 : idx = gfc_create_var (size_type_node, "arrayidx");
7690 517 : gfc_init_block (&loop_body);
7691 517 : tree shift = gfc_create_var (size_type_node, "shift");
7692 517 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7693 517 : gfc_add_modify (&loop_body, shift, build_zero_cst (TREE_TYPE (shift)));
7694 517 : gfc_add_modify (&loop_body, tmpidx, idx);
7695 517 : stmtblock_t inner_loop;
7696 517 : gfc_init_block (&inner_loop);
7697 517 : tree dim = gfc_create_var (TREE_TYPE (rank), "dim");
7698 : /* shift += (tmpidx % extent[d]) * sm[d] */
7699 517 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7700 : size_type_node, tmpidx,
7701 : fold_convert (size_type_node,
7702 : gfc_get_cfi_dim_extent (cfi, dim)));
7703 517 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7704 : size_type_node, tmp,
7705 : fold_convert (size_type_node,
7706 : gfc_get_cfi_dim_sm (cfi, dim)));
7707 517 : gfc_add_modify (&inner_loop, shift,
7708 : fold_build2_loc (input_location, PLUS_EXPR,
7709 : size_type_node, shift, tmp));
7710 : /* tmpidx = tmpidx / extend[d] */
7711 517 : tmp = fold_convert (size_type_node, gfc_get_cfi_dim_extent (cfi, dim));
7712 517 : gfc_add_modify (&inner_loop, tmpidx,
7713 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7714 : size_type_node, tmpidx, tmp));
7715 1034 : gfc_simple_for_loop (&loop_body, dim, build_zero_cst (TREE_TYPE (rank)),
7716 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (dim), 1),
7717 : gfc_finish_block (&inner_loop));
7718 : /* Assign. */
7719 517 : tmp = fold_convert (pchar_type_node, gfc_get_cfi_desc_base_addr (cfi));
7720 517 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
7721 517 : tree lhs;
7722 : /* memcpy (lhs + idx*elem_len, rhs + shift, elem_len) */
7723 517 : tree elem_len;
7724 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7725 263 : elem_len = gfc_conv_descriptor_elem_len (gfc_desc);
7726 : else
7727 254 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
7728 517 : lhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7729 : elem_len, idx);
7730 517 : lhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR, pchar_type_node,
7731 : fold_convert (pchar_type_node, data), lhs);
7732 517 : tmp = fold_convert (pvoid_type_node, tmp);
7733 517 : lhs = fold_convert (pvoid_type_node, lhs);
7734 517 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
7735 517 : call = build_call_expr_loc (input_location, call, 3, lhs, tmp, elem_len);
7736 517 : gfc_add_expr_to_block (&loop_body, fold_convert (void_type_node, call));
7737 1034 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7738 517 : size_var, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7739 : gfc_finish_block (&loop_body));
7740 : /* if (cond) { block2 } */
7741 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7742 : build_empty_stmt (input_location));
7743 517 : gfc_add_expr_to_block (&block, tmp);
7744 : }
7745 :
7746 1583 : if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7747 : {
7748 254 : tree offset, type;
7749 254 : type = TREE_TYPE (gfc_desc);
7750 254 : gfc_trans_array_bounds (type, sym, &offset, &block);
7751 254 : if (VAR_P (GFC_TYPE_ARRAY_OFFSET (type)))
7752 144 : gfc_add_modify (&block, GFC_TYPE_ARRAY_OFFSET (type), offset);
7753 254 : goto done;
7754 : }
7755 :
7756 : /* If cfi->data != NULL. */
7757 1329 : stmtblock_t block2;
7758 1329 : gfc_init_block (&block2);
7759 :
7760 : /* if do_copy_inout: gfc->dspan = gfc->dtype.elem_len
7761 : We use gfc instead of cfi on the RHS as this might be a constant. */
7762 1329 : tmp = fold_convert (gfc_array_index_type,
7763 : gfc_conv_descriptor_elem_len (gfc_desc));
7764 1329 : if (!do_copy_inout)
7765 : {
7766 : /* gfc->dspan = ((cfi->dim[0].sm % gfc->elem_len)
7767 : ? cfi->dim[0].sm : gfc->elem_len). */
7768 1066 : tree cond;
7769 1066 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, gfc_rank_cst[0]);
7770 1066 : cond = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7771 : gfc_array_index_type, tmp2, tmp);
7772 1066 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7773 : cond, gfc_index_zero_node);
7774 1066 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7775 : tmp2, tmp);
7776 : }
7777 1329 : gfc_conv_descriptor_span_set (&block2, gfc_desc, tmp);
7778 :
7779 : /* Calculate offset + set lbound, ubound and stride. */
7780 1329 : gfc_conv_descriptor_offset_set (&block2, gfc_desc, gfc_index_zero_node);
7781 1329 : if (sym->as->rank > 0 && !sym->attr.pointer && !sym->attr.allocatable)
7782 1274 : for (int i = 0; i < sym->as->rank; ++i)
7783 : {
7784 718 : gfc_se se;
7785 718 : gfc_init_se (&se, NULL );
7786 718 : if (sym->as->lower[i])
7787 : {
7788 718 : gfc_conv_expr (&se, sym->as->lower[i]);
7789 718 : tmp = se.expr;
7790 : }
7791 : else
7792 0 : tmp = gfc_index_one_node;
7793 718 : gfc_add_block_to_block (&block2, &se.pre);
7794 718 : gfc_conv_descriptor_lbound_set (&block2, gfc_desc, gfc_rank_cst[i],
7795 : tmp);
7796 718 : gfc_add_block_to_block (&block2, &se.post);
7797 : }
7798 :
7799 : /* Loop: for (i = 0; i < rank; ++i). */
7800 1329 : idx = gfc_create_var (TREE_TYPE (rank), "idx");
7801 :
7802 : /* Loop body. */
7803 1329 : stmtblock_t loop_body;
7804 1329 : gfc_init_block (&loop_body);
7805 : /* gfc->dim[i].lbound = ... */
7806 1329 : if (sym->attr.pointer || sym->attr.allocatable)
7807 : {
7808 276 : tmp = gfc_get_cfi_dim_lbound (cfi, idx);
7809 276 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx, tmp);
7810 : }
7811 1053 : else if (sym->as->rank < 0)
7812 497 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx,
7813 : gfc_index_one_node);
7814 :
7815 : /* gfc->dim[i].ubound = gfc->dim[i].lbound + cfi->dim[i].extent - 1. */
7816 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7817 : gfc_conv_descriptor_lbound_get (gfc_desc, idx),
7818 : gfc_index_one_node);
7819 1329 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type,
7820 : gfc_get_cfi_dim_extent (cfi, idx), tmp);
7821 1329 : gfc_conv_descriptor_ubound_set (&loop_body, gfc_desc, idx, tmp);
7822 :
7823 1329 : if (do_copy_inout)
7824 : {
7825 : /* gfc->dim[i].stride
7826 : = idx == 0 ? 1 : gfc->dim[i-1].stride * cfi->dim[i-1].extent */
7827 263 : tree cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7828 263 : idx, build_zero_cst (TREE_TYPE (idx)));
7829 263 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7830 263 : idx, build_int_cst (TREE_TYPE (idx), 1));
7831 263 : tree tmp2 = gfc_get_cfi_dim_extent (cfi, tmp);
7832 263 : tmp = gfc_conv_descriptor_stride_get (gfc_desc, tmp);
7833 263 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp2),
7834 : tmp2, tmp);
7835 263 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7836 : gfc_index_one_node, tmp);
7837 : }
7838 : else
7839 : {
7840 : /* gfc->dim[i].stride = cfi->dim[i].sm / cfi>elem_len */
7841 1066 : tmp = gfc_get_cfi_dim_sm (cfi, idx);
7842 1066 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7843 : gfc_array_index_type, tmp,
7844 : fold_convert (gfc_array_index_type,
7845 : gfc_get_cfi_desc_elem_len (cfi)));
7846 : }
7847 1329 : gfc_conv_descriptor_stride_set (&loop_body, gfc_desc, idx, tmp);
7848 : /* gfc->offset -= gfc->dim[i].stride * gfc->dim[i].lbound. */
7849 1329 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
7850 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
7851 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
7852 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7853 : gfc_conv_descriptor_offset_get (gfc_desc), tmp);
7854 1329 : gfc_conv_descriptor_offset_set (&loop_body, gfc_desc, tmp);
7855 :
7856 : /* Generate loop. */
7857 2658 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7858 1329 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7859 : gfc_finish_block (&loop_body));
7860 1329 : if (sym->attr.allocatable || sym->attr.pointer)
7861 : {
7862 276 : tmp = gfc_get_cfi_desc_base_addr (cfi),
7863 276 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7864 : tmp, null_pointer_node);
7865 276 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
7866 : build_empty_stmt (input_location));
7867 276 : gfc_add_expr_to_block (&block, tmp);
7868 : }
7869 : else
7870 1053 : gfc_add_block_to_block (&block, &block2);
7871 :
7872 1819 : done:
7873 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
7874 1819 : if (sym->attr.optional)
7875 : {
7876 317 : tree present = fold_build2_loc (input_location, NE_EXPR,
7877 : boolean_type_node, cfi_desc,
7878 : null_pointer_node);
7879 317 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7880 : sym->backend_decl,
7881 317 : fold_convert (TREE_TYPE (sym->backend_decl),
7882 : null_pointer_node));
7883 317 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block), tmp);
7884 317 : gfc_add_expr_to_block (init, tmp);
7885 : }
7886 : else
7887 1502 : gfc_add_block_to_block (init, &block);
7888 :
7889 1819 : if (!sym->attr.referenced)
7890 984 : return;
7891 :
7892 : /* If pointer not changed, nothing to be done (except copy out) */
7893 1747 : if (!do_copy_inout && ((!sym->attr.pointer && !sym->attr.allocatable)
7894 381 : || sym->attr.intent == INTENT_IN))
7895 : return;
7896 :
7897 835 : gfc_init_block (&block);
7898 :
7899 : /* For bind(C), Fortran does not permit mixing 'pointer' with 'contiguous' (or
7900 : len=*). Thus, when copy out is needed, the bounds ofthe descriptor remain
7901 : unchanged. */
7902 835 : if (do_copy_inout)
7903 : {
7904 517 : tree data, call;
7905 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7906 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7907 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7908 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7909 : else
7910 : data = gfc_desc;
7911 517 : gfc_init_block (&block2);
7912 517 : if (sym->attr.intent != INTENT_IN)
7913 : {
7914 : /* First, create the inner copy-out loop.
7915 : for (idx = 0; idx < size; ++idx)
7916 : {
7917 : shift = 0;
7918 : tmpidx = idx
7919 : for (dim = 0; dim < rank; ++dim)
7920 : {
7921 : shift += (tmpidx % extent[d]) * sm[d]
7922 : tmpidx = tmpidx / extend[d]
7923 : }
7924 : memcpy (lhs + shift, rhs + idx*elem_len, elem_len)
7925 : } .*/
7926 292 : stmtblock_t loop_body;
7927 292 : idx = gfc_create_var (size_type_node, "arrayidx");
7928 292 : gfc_init_block (&loop_body);
7929 292 : tree shift = gfc_create_var (size_type_node, "shift");
7930 292 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7931 292 : gfc_add_modify (&loop_body, shift,
7932 292 : build_zero_cst (TREE_TYPE (shift)));
7933 292 : gfc_add_modify (&loop_body, tmpidx, idx);
7934 292 : stmtblock_t inner_loop;
7935 292 : gfc_init_block (&inner_loop);
7936 292 : tree dim = gfc_create_var (TREE_TYPE (rank), "dim");
7937 : /* shift += (tmpidx % extent[d]) * sm[d] */
7938 292 : tmp = fold_convert (size_type_node,
7939 : gfc_get_cfi_dim_extent (cfi, dim));
7940 292 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7941 : size_type_node, tmpidx, tmp);
7942 292 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7943 : size_type_node, tmp,
7944 : fold_convert (size_type_node,
7945 : gfc_get_cfi_dim_sm (cfi, dim)));
7946 292 : gfc_add_modify (&inner_loop, shift,
7947 : fold_build2_loc (input_location, PLUS_EXPR,
7948 : size_type_node, shift, tmp));
7949 : /* tmpidx = tmpidx / extend[d] */
7950 292 : tmp = fold_convert (size_type_node,
7951 : gfc_get_cfi_dim_extent (cfi, dim));
7952 292 : gfc_add_modify (&inner_loop, tmpidx,
7953 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7954 : size_type_node, tmpidx, tmp));
7955 876 : gfc_simple_for_loop (&loop_body, dim,
7956 292 : build_zero_cst (TREE_TYPE (rank)), rank, LT_EXPR,
7957 292 : build_int_cst (TREE_TYPE (dim), 1),
7958 : gfc_finish_block (&inner_loop));
7959 : /* Assign. */
7960 292 : tree rhs;
7961 292 : tmp = fold_convert (pchar_type_node,
7962 : gfc_get_cfi_desc_base_addr (cfi));
7963 292 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
7964 : /* memcpy (lhs + shift, rhs + idx*elem_len, elem_len) */
7965 292 : tree elem_len;
7966 292 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7967 153 : elem_len = gfc_conv_descriptor_elem_len (gfc_desc);
7968 : else
7969 139 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
7970 292 : rhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7971 : elem_len, idx);
7972 292 : rhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR,
7973 : pchar_type_node,
7974 : fold_convert (pchar_type_node, data), rhs);
7975 292 : tmp = fold_convert (pvoid_type_node, tmp);
7976 292 : rhs = fold_convert (pvoid_type_node, rhs);
7977 292 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
7978 292 : call = build_call_expr_loc (input_location, call, 3, tmp, rhs,
7979 : elem_len);
7980 292 : gfc_add_expr_to_block (&loop_body,
7981 : fold_convert (void_type_node, call));
7982 584 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7983 : size_var, LT_EXPR,
7984 292 : build_int_cst (TREE_TYPE (idx), 1),
7985 : gfc_finish_block (&loop_body));
7986 : }
7987 517 : call = builtin_decl_explicit (BUILT_IN_FREE);
7988 517 : call = build_call_expr_loc (input_location, call, 1, data);
7989 517 : gfc_add_expr_to_block (&block2, call);
7990 :
7991 : /* if (cfi->base_addr != gfc->data) { copy out; free(var) }; return */
7992 517 : tree tmp2 = gfc_get_cfi_desc_base_addr (cfi);
7993 517 : tmp2 = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7994 517 : tmp2, fold_convert (TREE_TYPE (tmp2), data));
7995 517 : tmp = build3_v (COND_EXPR, tmp2, gfc_finish_block (&block2),
7996 : build_empty_stmt (input_location));
7997 517 : gfc_add_expr_to_block (&block, tmp);
7998 517 : goto done_finally;
7999 : }
8000 :
8001 : /* Update pointer + array data data on exit. */
8002 318 : tmp = gfc_get_cfi_desc_base_addr (cfi);
8003 318 : tmp2 = (!sym->attr.dimension
8004 318 : ? gfc_desc : gfc_conv_descriptor_data_get (gfc_desc));
8005 318 : gfc_add_modify (&block, tmp, fold_convert (TREE_TYPE (tmp), tmp2));
8006 :
8007 : /* Set string length for len=:, only. */
8008 318 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
8009 : {
8010 60 : tmp2 = gfc_get_cfi_desc_elem_len (cfi);
8011 60 : tmp = fold_convert (TREE_TYPE (tmp2), sym->ts.u.cl->backend_decl);
8012 60 : if (sym->ts.kind != 1)
8013 48 : tmp = fold_build2_loc (input_location, MULT_EXPR,
8014 24 : TREE_TYPE (tmp2), tmp,
8015 24 : build_int_cst (TREE_TYPE (tmp2), sym->ts.kind));
8016 60 : gfc_add_modify (&block, tmp2, tmp);
8017 : }
8018 :
8019 318 : if (!sym->attr.dimension)
8020 102 : goto done_finally;
8021 :
8022 216 : gfc_init_block (&block2);
8023 :
8024 : /* Loop: for (i = 0; i < rank; ++i). */
8025 216 : idx = gfc_create_var (TREE_TYPE (rank), "idx");
8026 :
8027 : /* Loop body. */
8028 216 : gfc_init_block (&loop_body);
8029 : /* cfi->dim[i].lower_bound = gfc->dim[i].lbound */
8030 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_lbound (cfi, idx),
8031 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
8032 : /* cfi->dim[i].extent = gfc->dim[i].ubound - gfc->dim[i].lbound + 1. */
8033 216 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
8034 : gfc_conv_descriptor_ubound_get (gfc_desc, idx),
8035 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
8036 216 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type, tmp,
8037 : gfc_index_one_node);
8038 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_extent (cfi, idx), tmp);
8039 : /* d->dim[n].sm = gfc->dim[i].stride * gfc->span); */
8040 216 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
8041 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
8042 : gfc_conv_descriptor_span_get (gfc_desc));
8043 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_sm (cfi, idx), tmp);
8044 :
8045 : /* Generate loop. */
8046 432 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
8047 216 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
8048 : gfc_finish_block (&loop_body));
8049 : /* if (gfc->data != NULL) { block2 }. */
8050 216 : tmp = gfc_get_cfi_desc_base_addr (cfi),
8051 216 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
8052 : tmp, null_pointer_node);
8053 216 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
8054 : build_empty_stmt (input_location));
8055 216 : gfc_add_expr_to_block (&block, tmp);
8056 :
8057 835 : done_finally:
8058 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
8059 835 : if (sym->attr.optional)
8060 : {
8061 180 : tree present = fold_build2_loc (input_location, NE_EXPR,
8062 : boolean_type_node, cfi_desc,
8063 : null_pointer_node);
8064 180 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block),
8065 : build_empty_stmt (input_location));
8066 180 : gfc_add_expr_to_block (finally, tmp);
8067 : }
8068 : else
8069 655 : gfc_add_block_to_block (finally, &block);
8070 : }
8071 :
8072 :
8073 : static void
8074 233 : emit_not_set_warning (gfc_symbol *sym)
8075 : {
8076 233 : if (warn_return_type > 0 && sym == sym->result)
8077 17 : gfc_warning (OPT_Wreturn_type,
8078 : "Return value of function %qs at %L not set",
8079 : sym->name, &sym->declared_at);
8080 233 : if (warn_return_type > 0)
8081 22 : suppress_warning (sym->backend_decl);
8082 233 : }
8083 :
8084 :
8085 : /* Generate code for a function. */
8086 :
8087 : void
8088 84658 : gfc_generate_function_code (gfc_namespace * ns)
8089 : {
8090 84658 : tree fndecl;
8091 84658 : tree old_context;
8092 84658 : tree decl;
8093 84658 : tree tmp;
8094 84658 : tree fpstate = NULL_TREE;
8095 84658 : stmtblock_t init, cleanup, outer_block;
8096 84658 : stmtblock_t body;
8097 84658 : gfc_wrapped_block try_block;
8098 84658 : tree recurcheckvar = NULL_TREE;
8099 84658 : gfc_symbol *sym;
8100 84658 : gfc_symbol *previous_procedure_symbol;
8101 84658 : int rank, ieee;
8102 84658 : bool is_recursive;
8103 :
8104 84658 : sym = ns->proc_name;
8105 84658 : previous_procedure_symbol = current_procedure_symbol;
8106 84658 : current_procedure_symbol = sym;
8107 :
8108 : /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get
8109 : lost or worse. */
8110 84658 : sym->tlink = sym;
8111 :
8112 : /* Create the declaration for functions with global scope. */
8113 84658 : if (!sym->backend_decl)
8114 35286 : gfc_create_function_decl (ns, false);
8115 :
8116 84658 : fndecl = sym->backend_decl;
8117 84658 : old_context = current_function_decl;
8118 :
8119 84658 : if (old_context)
8120 : {
8121 22965 : push_function_context ();
8122 22965 : saved_parent_function_decls = saved_function_decls;
8123 22965 : saved_function_decls = NULL_TREE;
8124 : }
8125 :
8126 84658 : trans_function_start (sym);
8127 84658 : gfc_current_locus = sym->declared_at;
8128 :
8129 84658 : gfc_init_block (&init);
8130 84658 : gfc_init_block (&cleanup);
8131 84658 : gfc_init_block (&outer_block);
8132 :
8133 84658 : if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER)
8134 : {
8135 : /* Copy length backend_decls to all entry point result
8136 : symbols. */
8137 74 : gfc_entry_list *el;
8138 74 : tree backend_decl;
8139 :
8140 74 : gfc_conv_const_charlen (ns->proc_name->ts.u.cl);
8141 74 : backend_decl = ns->proc_name->result->ts.u.cl->backend_decl;
8142 258 : for (el = ns->entries; el; el = el->next)
8143 184 : el->sym->result->ts.u.cl->backend_decl = backend_decl;
8144 : }
8145 :
8146 : /* Translate COMMON blocks. */
8147 84658 : gfc_trans_common (ns);
8148 :
8149 : /* Null the parent fake result declaration if this namespace is
8150 : a module function or an external procedures. */
8151 84658 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8152 59026 : || ns->parent == NULL)
8153 61693 : parent_fake_result_decl = NULL_TREE;
8154 :
8155 : /* For BIND(C):
8156 : - deallocate intent-out allocatable dummy arguments.
8157 : - Create GFC variable which will later be populated by convert_CFI_desc */
8158 84658 : if (sym->attr.is_bind_c)
8159 1899 : for (gfc_formal_arglist *formal = gfc_sym_get_dummy_args (sym);
8160 5917 : formal; formal = formal->next)
8161 : {
8162 4018 : gfc_symbol *fsym = formal->sym;
8163 4018 : if (!is_CFI_desc (fsym, NULL))
8164 2199 : continue;
8165 1819 : if (!fsym->attr.referenced)
8166 : {
8167 72 : gfc_conv_cfi_to_gfc (&init, &cleanup, fsym->backend_decl,
8168 : NULL_TREE, fsym);
8169 72 : continue;
8170 : }
8171 : /* Let's now create a local GFI descriptor. Afterwards:
8172 : desc is the local descriptor,
8173 : desc_p is a pointer to it
8174 : and stored in sym->backend_decl
8175 : GFC_DECL_SAVED_DESCRIPTOR (desc_p) contains the CFI descriptor
8176 : -> PARM_DECL and before sym->backend_decl.
8177 : For scalars, decl == decl_p is a pointer variable. */
8178 1747 : tree desc_p, desc;
8179 1747 : location_t loc = gfc_get_location (&sym->declared_at);
8180 1747 : if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->length)
8181 647 : fsym->ts.u.cl->backend_decl = gfc_create_var (gfc_array_index_type,
8182 : fsym->name);
8183 1100 : else if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->backend_decl)
8184 : {
8185 157 : gfc_se se;
8186 157 : gfc_init_se (&se, NULL );
8187 157 : gfc_conv_expr (&se, fsym->ts.u.cl->length);
8188 157 : gfc_add_block_to_block (&init, &se.pre);
8189 157 : fsym->ts.u.cl->backend_decl = se.expr;
8190 157 : gcc_assert(se.post.head == NULL_TREE);
8191 : }
8192 : /* Nullify, otherwise gfc_sym_type will return the CFI type. */
8193 1747 : tree tmp = fsym->backend_decl;
8194 1747 : fsym->backend_decl = NULL;
8195 1747 : tree type = gfc_sym_type (fsym);
8196 1747 : gcc_assert (POINTER_TYPE_P (type));
8197 1747 : if (POINTER_TYPE_P (TREE_TYPE (type)))
8198 : /* For instance, allocatable scalars. */
8199 105 : type = TREE_TYPE (type);
8200 1747 : if (TREE_CODE (type) == REFERENCE_TYPE)
8201 1179 : type = build_pointer_type (TREE_TYPE (type));
8202 1747 : desc_p = build_decl (loc, VAR_DECL, get_identifier (fsym->name), type);
8203 1747 : if (!fsym->attr.dimension)
8204 : desc = desc_p;
8205 1583 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (TREE_TYPE (desc_p))))
8206 : {
8207 : /* Character(len=*) explicit-size/assumed-size array. */
8208 254 : desc = desc_p;
8209 254 : gfc_build_qualified_array (desc, fsym);
8210 : }
8211 : else
8212 : {
8213 1329 : tree size = size_in_bytes (TREE_TYPE (TREE_TYPE (desc_p)));
8214 1329 : tree call = builtin_decl_explicit (BUILT_IN_ALLOCA);
8215 1329 : call = build_call_expr_loc (input_location, call, 1, size);
8216 1329 : gfc_add_modify (&outer_block, desc_p,
8217 1329 : fold_convert (TREE_TYPE(desc_p), call));
8218 1329 : desc = build_fold_indirect_ref_loc (input_location, desc_p);
8219 : }
8220 1747 : pushdecl (desc_p);
8221 1747 : if (fsym->attr.optional)
8222 : {
8223 311 : gfc_allocate_lang_decl (desc_p);
8224 311 : GFC_DECL_OPTIONAL_ARGUMENT (desc_p) = 1;
8225 : }
8226 1747 : fsym->backend_decl = desc_p;
8227 1747 : gfc_conv_cfi_to_gfc (&init, &cleanup, tmp, desc, fsym);
8228 : }
8229 :
8230 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
8231 : especially as some late diagnostic is only done on tree level. */
8232 84658 : if (flag_openmp)
8233 8658 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
8234 :
8235 84658 : gfc_generate_contained_functions (ns);
8236 :
8237 84658 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8238 84658 : generate_local_vars (ns);
8239 :
8240 84658 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8241 400 : generate_coarray_init (ns);
8242 :
8243 : /* Keep the parent fake result declaration in module functions
8244 : or external procedures. */
8245 84658 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8246 59026 : || ns->parent == NULL)
8247 61693 : current_fake_result_decl = parent_fake_result_decl;
8248 : else
8249 22965 : current_fake_result_decl = NULL_TREE;
8250 :
8251 169316 : is_recursive = sym->attr.recursive
8252 84658 : || (sym->attr.entry_master
8253 667 : && sym->ns->entries->sym->attr.recursive);
8254 84658 : if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION)
8255 1009 : && !is_recursive && !flag_recursive && !sym->attr.artificial)
8256 : {
8257 840 : char * msg;
8258 :
8259 840 : msg = xasprintf ("Recursive call to nonrecursive procedure '%s'",
8260 : sym->name);
8261 840 : recurcheckvar = gfc_create_var (logical_type_node, "is_recursive");
8262 840 : TREE_STATIC (recurcheckvar) = 1;
8263 840 : DECL_INITIAL (recurcheckvar) = logical_false_node;
8264 840 : gfc_add_expr_to_block (&init, recurcheckvar);
8265 840 : gfc_trans_runtime_check (true, false, recurcheckvar, &init,
8266 : &sym->declared_at, msg);
8267 840 : gfc_add_modify (&init, recurcheckvar, logical_true_node);
8268 840 : free (msg);
8269 : }
8270 :
8271 : /* Check if an IEEE module is used in the procedure. If so, save
8272 : the floating point state. */
8273 84658 : ieee = is_ieee_module_used (ns);
8274 84658 : if (ieee)
8275 443 : fpstate = gfc_save_fp_state (&init);
8276 :
8277 : /* Now generate the code for the body of this function. */
8278 84658 : gfc_init_block (&body);
8279 :
8280 84658 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8281 84658 : && sym->attr.subroutine)
8282 : {
8283 42 : tree alternate_return;
8284 42 : alternate_return = gfc_get_fake_result_decl (sym, 0);
8285 42 : gfc_add_modify (&body, alternate_return, integer_zero_node);
8286 : }
8287 :
8288 84658 : if (ns->entries)
8289 : {
8290 : /* Jump to the correct entry point. */
8291 667 : tmp = gfc_trans_entry_master_switch (ns->entries);
8292 667 : gfc_add_expr_to_block (&body, tmp);
8293 : }
8294 :
8295 : /* If bounds-checking is enabled, generate code to check passed in actual
8296 : arguments against the expected dummy argument attributes (e.g. string
8297 : lengths). */
8298 84658 : if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c)
8299 2869 : add_argument_checking (&body, sym);
8300 :
8301 84658 : finish_oacc_declare (ns, sym, false);
8302 :
8303 84658 : tmp = gfc_trans_code (ns->code);
8304 84658 : gfc_add_expr_to_block (&body, tmp);
8305 :
8306 : /* This permits the return value to be correctly initialized, even when the
8307 : function result was not referenced. */
8308 84658 : if (sym->abr_modproc_decl
8309 247 : && IS_PDT (sym)
8310 7 : && !sym->attr.allocatable
8311 7 : && sym->result == sym
8312 84665 : && get_proc_result (sym) == NULL_TREE)
8313 : {
8314 1 : gfc_get_fake_result_decl (sym->result, 0);
8315 : /* TODO: move to the appropriate place in resolve.cc. */
8316 1 : emit_not_set_warning (sym);
8317 : }
8318 :
8319 84658 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8320 84658 : || (sym->result && sym->result != sym
8321 1182 : && sym->result->ts.type == BT_DERIVED
8322 167 : && sym->result->ts.u.derived->attr.alloc_comp))
8323 : {
8324 12068 : bool artificial_result_decl = false;
8325 12068 : tree result = get_proc_result (sym);
8326 12068 : gfc_symbol *rsym = sym == sym->result ? sym : sym->result;
8327 :
8328 : /* Make sure that a function returning an object with
8329 : alloc/pointer_components always has a result, where at least
8330 : the allocatable/pointer components are set to zero. */
8331 12068 : if (result == NULL_TREE && sym->attr.function
8332 232 : && ((sym->result->ts.type == BT_DERIVED
8333 28 : && (sym->attr.allocatable
8334 22 : || sym->attr.pointer
8335 20 : || sym->result->ts.u.derived->attr.alloc_comp
8336 20 : || sym->result->ts.u.derived->attr.pointer_comp))
8337 224 : || (sym->result->ts.type == BT_CLASS
8338 38 : && (CLASS_DATA (sym->result)->attr.allocatable
8339 11 : || CLASS_DATA (sym->result)->attr.class_pointer
8340 0 : || CLASS_DATA (sym->result)->attr.alloc_comp
8341 0 : || CLASS_DATA (sym->result)->attr.pointer_comp))))
8342 : {
8343 46 : artificial_result_decl = true;
8344 46 : result = gfc_get_fake_result_decl (sym->result, 0);
8345 : }
8346 :
8347 12068 : if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer)
8348 : {
8349 11452 : if (sym->attr.allocatable && sym->attr.dimension == 0
8350 101 : && sym->result == sym)
8351 75 : gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result),
8352 : null_pointer_node));
8353 11377 : else if (sym->ts.type == BT_CLASS
8354 733 : && CLASS_DATA (sym)->attr.allocatable
8355 503 : && CLASS_DATA (sym)->attr.dimension == 0
8356 316 : && sym->result == sym)
8357 : {
8358 135 : tmp = gfc_class_data_get (result);
8359 135 : gfc_add_modify (&init, tmp,
8360 135 : fold_convert (TREE_TYPE (tmp),
8361 : null_pointer_node));
8362 135 : gfc_reset_vptr (&init, nullptr, result,
8363 135 : sym->result->ts.u.derived);
8364 : }
8365 11242 : else if (sym->ts.type == BT_DERIVED
8366 1243 : && !sym->attr.allocatable)
8367 : {
8368 1218 : gfc_expr *init_exp;
8369 : /* Arrays are not initialized using the default initializer of
8370 : their elements. Therefore only check if a default
8371 : initializer is available when the result is scalar. */
8372 1218 : init_exp = rsym->as ? NULL
8373 1185 : : gfc_generate_initializer (&rsym->ts, true);
8374 1185 : if (init_exp)
8375 : {
8376 642 : tmp = gfc_trans_structure_assign (result, init_exp, 0);
8377 642 : gfc_free_expr (init_exp);
8378 642 : gfc_add_expr_to_block (&init, tmp);
8379 : }
8380 :
8381 1218 : if (rsym->ts.u.derived->attr.alloc_comp)
8382 : {
8383 445 : rank = rsym->as ? rsym->as->rank : 0;
8384 445 : tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result,
8385 : rank);
8386 445 : gfc_prepend_expr_to_block (&body, tmp);
8387 : }
8388 : }
8389 : }
8390 :
8391 12068 : if (result == NULL_TREE || artificial_result_decl)
8392 : /* TODO: move to the appropriate place in resolve.cc. */
8393 232 : emit_not_set_warning (sym);
8394 :
8395 232 : if (result != NULL_TREE)
8396 11882 : gfc_add_expr_to_block (&body, gfc_generate_return ());
8397 : }
8398 :
8399 : /* Reset recursion-check variable. */
8400 84658 : if (recurcheckvar != NULL_TREE)
8401 : {
8402 840 : gfc_add_modify (&cleanup, recurcheckvar, logical_false_node);
8403 840 : recurcheckvar = NULL;
8404 : }
8405 :
8406 : /* If IEEE modules are loaded, restore the floating-point state. */
8407 84658 : if (ieee)
8408 443 : gfc_restore_fp_state (&cleanup, fpstate);
8409 :
8410 : /* Finish the function body and add init and cleanup code. */
8411 84658 : tmp = gfc_finish_block (&body);
8412 : /* Add code to create and cleanup arrays. */
8413 84658 : gfc_start_wrapped_block (&try_block, tmp);
8414 84658 : gfc_trans_deferred_vars (sym, &try_block);
8415 84658 : gfc_add_init_cleanup (&try_block, gfc_finish_block (&init),
8416 : gfc_finish_block (&cleanup));
8417 :
8418 : /* Add all the decls we created during processing. */
8419 84658 : decl = nreverse (saved_function_decls);
8420 462805 : while (decl)
8421 : {
8422 293489 : tree next;
8423 :
8424 293489 : next = DECL_CHAIN (decl);
8425 293489 : DECL_CHAIN (decl) = NULL_TREE;
8426 293489 : pushdecl (decl);
8427 293489 : decl = next;
8428 : }
8429 84658 : saved_function_decls = NULL_TREE;
8430 :
8431 84658 : gfc_add_expr_to_block (&outer_block, gfc_finish_wrapped_block (&try_block));
8432 84658 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&outer_block);
8433 84658 : decl = getdecls ();
8434 :
8435 : /* Finish off this function and send it for code generation. */
8436 84658 : poplevel (1, 1);
8437 84658 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8438 :
8439 169316 : DECL_SAVED_TREE (fndecl)
8440 169316 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
8441 169316 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
8442 :
8443 : /* Output the GENERIC tree. */
8444 84658 : dump_function (TDI_original, fndecl);
8445 :
8446 : /* Store the end of the function, so that we get good line number
8447 : info for the epilogue. */
8448 84658 : cfun->function_end_locus = input_location;
8449 :
8450 : /* We're leaving the context of this function, so zap cfun.
8451 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
8452 : tree_rest_of_compilation. */
8453 84658 : set_cfun (NULL);
8454 :
8455 84658 : if (old_context)
8456 : {
8457 22965 : pop_function_context ();
8458 22965 : saved_function_decls = saved_parent_function_decls;
8459 : }
8460 84658 : current_function_decl = old_context;
8461 :
8462 84658 : if (decl_function_context (fndecl))
8463 : {
8464 : /* Register this function with cgraph just far enough to get it
8465 : added to our parent's nested function list.
8466 : If there are static coarrays in this function, the nested _caf_init
8467 : function has already called cgraph_create_node, which also created
8468 : the cgraph node for this function. */
8469 22965 : if (!has_coarray_vars_or_accessors || flag_coarray != GFC_FCOARRAY_LIB)
8470 22763 : (void) cgraph_node::get_create (fndecl);
8471 : }
8472 : else
8473 61693 : cgraph_node::finalize_function (fndecl, true);
8474 :
8475 84658 : gfc_trans_use_stmts (ns);
8476 84658 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
8477 :
8478 84658 : if (sym->attr.is_main_program)
8479 26136 : create_main_function (fndecl);
8480 :
8481 84658 : current_procedure_symbol = previous_procedure_symbol;
8482 84658 : }
8483 :
8484 :
8485 : void
8486 31413 : gfc_generate_constructors (void)
8487 : {
8488 31413 : gcc_assert (gfc_static_ctors == NULL_TREE);
8489 : #if 0
8490 : tree fnname;
8491 : tree type;
8492 : tree fndecl;
8493 : tree decl;
8494 : tree tmp;
8495 :
8496 : if (gfc_static_ctors == NULL_TREE)
8497 : return;
8498 :
8499 : fnname = get_file_function_name ("I");
8500 : type = build_function_type_list (void_type_node, NULL_TREE);
8501 :
8502 : fndecl = build_decl (input_location,
8503 : FUNCTION_DECL, fnname, type);
8504 : TREE_PUBLIC (fndecl) = 1;
8505 :
8506 : decl = build_decl (input_location,
8507 : RESULT_DECL, NULL_TREE, void_type_node);
8508 : DECL_ARTIFICIAL (decl) = 1;
8509 : DECL_IGNORED_P (decl) = 1;
8510 : DECL_CONTEXT (decl) = fndecl;
8511 : DECL_RESULT (fndecl) = decl;
8512 :
8513 : pushdecl (fndecl);
8514 :
8515 : current_function_decl = fndecl;
8516 :
8517 : rest_of_decl_compilation (fndecl, 1, 0);
8518 :
8519 : make_decl_rtl (fndecl);
8520 :
8521 : allocate_struct_function (fndecl, false);
8522 :
8523 : pushlevel ();
8524 :
8525 : for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors))
8526 : {
8527 : tmp = build_call_expr_loc (input_location,
8528 : TREE_VALUE (gfc_static_ctors), 0);
8529 : DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp);
8530 : }
8531 :
8532 : decl = getdecls ();
8533 : poplevel (1, 1);
8534 :
8535 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8536 : DECL_SAVED_TREE (fndecl)
8537 : = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl),
8538 : DECL_INITIAL (fndecl));
8539 :
8540 : free_after_parsing (cfun);
8541 : free_after_compilation (cfun);
8542 :
8543 : tree_rest_of_compilation (fndecl);
8544 :
8545 : current_function_decl = NULL_TREE;
8546 : #endif
8547 31413 : }
8548 :
8549 :
8550 : /* Helper function for checking of variables declared in a BLOCK DATA program
8551 : unit. */
8552 :
8553 : static void
8554 300 : check_block_data_decls (gfc_symbol * sym)
8555 : {
8556 300 : if (warn_unused_variable
8557 13 : && sym->attr.flavor == FL_VARIABLE
8558 7 : && !sym->attr.in_common
8559 3 : && !sym->attr.artificial)
8560 : {
8561 2 : gfc_warning (OPT_Wunused_variable,
8562 : "Symbol %qs at %L is declared in a BLOCK DATA "
8563 : "program unit but is not in a COMMON block",
8564 : sym->name, &sym->declared_at);
8565 : }
8566 300 : }
8567 :
8568 :
8569 : /* Translates a BLOCK DATA program unit. This means emitting the
8570 : commons contained therein plus their initializations. We also emit
8571 : a globally visible symbol to make sure that each BLOCK DATA program
8572 : unit remains unique. */
8573 :
8574 : void
8575 72 : gfc_generate_block_data (gfc_namespace * ns)
8576 : {
8577 72 : tree decl;
8578 72 : tree id;
8579 :
8580 : /* Tell the backend the source location of the block data. */
8581 72 : if (ns->proc_name)
8582 29 : input_location = gfc_get_location (&ns->proc_name->declared_at);
8583 : else
8584 43 : input_location = gfc_get_location (&gfc_current_locus);
8585 :
8586 : /* Process the DATA statements. */
8587 72 : gfc_trans_common (ns);
8588 :
8589 : /* Check for variables declared in BLOCK DATA but not used in COMMON. */
8590 72 : gfc_traverse_ns (ns, check_block_data_decls);
8591 :
8592 : /* Create a global symbol with the mane of the block data. This is to
8593 : generate linker errors if the same name is used twice. It is never
8594 : really used. */
8595 72 : if (ns->proc_name)
8596 29 : id = gfc_sym_mangled_function_id (ns->proc_name);
8597 : else
8598 43 : id = get_identifier ("__BLOCK_DATA__");
8599 :
8600 72 : decl = build_decl (input_location,
8601 : VAR_DECL, id, gfc_array_index_type);
8602 72 : TREE_PUBLIC (decl) = 1;
8603 72 : TREE_STATIC (decl) = 1;
8604 72 : DECL_IGNORED_P (decl) = 1;
8605 :
8606 72 : pushdecl (decl);
8607 72 : rest_of_decl_compilation (decl, 1, 0);
8608 72 : }
8609 :
8610 : void
8611 14000 : gfc_start_saved_local_decls ()
8612 : {
8613 14000 : gcc_checking_assert (current_function_decl != NULL_TREE);
8614 14000 : saved_local_decls = NULL_TREE;
8615 14000 : }
8616 :
8617 : void
8618 14000 : gfc_stop_saved_local_decls ()
8619 : {
8620 14000 : tree decl = nreverse (saved_local_decls);
8621 40965 : while (decl)
8622 : {
8623 12965 : tree next;
8624 :
8625 12965 : next = DECL_CHAIN (decl);
8626 12965 : DECL_CHAIN (decl) = NULL_TREE;
8627 12965 : pushdecl (decl);
8628 12965 : decl = next;
8629 : }
8630 14000 : saved_local_decls = NULL_TREE;
8631 14000 : }
8632 :
8633 : /* Process the local variables of a BLOCK construct. */
8634 :
8635 : void
8636 13952 : gfc_process_block_locals (gfc_namespace* ns)
8637 : {
8638 13952 : gfc_start_saved_local_decls ();
8639 13952 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8640 :
8641 13952 : generate_local_vars (ns);
8642 :
8643 13952 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8644 41 : generate_coarray_init (ns);
8645 13952 : gfc_stop_saved_local_decls ();
8646 13952 : }
8647 :
8648 :
8649 : #include "gt-fortran-trans-decl.h"
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