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 288742 : gfc_add_decl_to_function (tree decl)
266 : {
267 288742 : gcc_assert (decl);
268 288742 : TREE_USED (decl) = 1;
269 288742 : DECL_CONTEXT (decl) = current_function_decl;
270 288742 : DECL_CHAIN (decl) = saved_function_decls;
271 288742 : saved_function_decls = decl;
272 288742 : }
273 :
274 : static void
275 13025 : add_decl_as_local (tree decl)
276 : {
277 13025 : gcc_assert (decl);
278 13025 : TREE_USED (decl) = 1;
279 13025 : DECL_CONTEXT (decl) = current_function_decl;
280 13025 : DECL_CHAIN (decl) = saved_local_decls;
281 13025 : saved_local_decls = decl;
282 13025 : }
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 622261 : gfc_build_label_decl (tree label_id)
291 : {
292 : /* 2^32 temporaries should be enough. */
293 622261 : static unsigned int tmp_num = 1;
294 622261 : tree label_decl;
295 622261 : char *label_name;
296 :
297 622261 : if (label_id == NULL_TREE)
298 : {
299 : /* Build an internal label name. */
300 618741 : ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++);
301 618741 : label_id = get_identifier (label_name);
302 : }
303 : else
304 622261 : label_name = NULL;
305 :
306 : /* Build the LABEL_DECL node. Labels have no type. */
307 622261 : label_decl = build_decl (input_location,
308 : LABEL_DECL, label_id, void_type_node);
309 622261 : DECL_CONTEXT (label_decl) = current_function_decl;
310 622261 : 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 622261 : TREE_USED (label_decl) = 1;
317 :
318 622261 : DECL_ARTIFICIAL (label_decl) = 1;
319 622261 : return label_decl;
320 : }
321 :
322 :
323 : /* Set the backend source location of a decl. */
324 :
325 : void
326 182838 : gfc_set_decl_location (tree decl, locus * loc)
327 : {
328 182838 : DECL_SOURCE_LOCATION (decl) = gfc_get_location (loc);
329 182838 : }
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 416160 : sym_identifier (gfc_symbol *sym)
373 : {
374 416160 : if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0)
375 : return "MAIN__";
376 : else
377 411818 : return sym->name;
378 : }
379 :
380 : /* Convert a gfc_symbol to an identifier of the same name. */
381 :
382 : static tree
383 416160 : gfc_sym_identifier (gfc_symbol * sym)
384 : {
385 416160 : return get_identifier (sym_identifier (sym));
386 : }
387 :
388 : /* Construct mangled name from symbol name. */
389 :
390 : static const char *
391 19778 : mangled_identifier (gfc_symbol *sym)
392 : {
393 19778 : gfc_symbol *proc = sym->ns->proc_name;
394 19778 : 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 19778 : if (sym->attr.is_bind_c == 1 && sym->binding_label)
399 : return sym->binding_label;
400 :
401 19653 : if (!sym->fn_result_spec
402 57 : || (sym->module && !(proc && proc->attr.flavor == FL_PROCEDURE)))
403 : {
404 19604 : if (sym->module == NULL)
405 0 : return sym_identifier (sym);
406 : else
407 19604 : 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 19629 : gfc_sym_mangled_identifier (gfc_symbol * sym)
431 : {
432 19629 : tree result;
433 19629 : gfc_gsymbol *gsym;
434 19629 : const char *name;
435 :
436 19629 : name = mangled_identifier (sym);
437 19629 : result = get_identifier (name);
438 :
439 19629 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
440 19629 : if (gsym == NULL)
441 : {
442 19447 : gsym = gfc_get_gsymbol (name, false);
443 19447 : gsym->ns = sym->ns;
444 19447 : gsym->sym_name = sym->name;
445 : }
446 :
447 19629 : return result;
448 : }
449 :
450 : /* Construct mangled function name from symbol name. */
451 :
452 : static tree
453 81208 : gfc_sym_mangled_function_id (gfc_symbol * sym)
454 : {
455 81208 : int has_underscore;
456 81208 : 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 81208 : if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) &&
462 3449 : sym->binding_label)
463 : /* use the binding label rather than the mangled name */
464 3439 : return get_identifier (sym->binding_label);
465 :
466 77769 : if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL
467 26482 : || (sym->module != NULL && (sym->attr.external
468 25427 : || sym->attr.if_source == IFSRC_IFBODY)))
469 52342 : && !sym->attr.module_procedure)
470 : {
471 : /* Main program is mangled into MAIN__. */
472 51949 : if (sym->attr.is_main_program)
473 26153 : return get_identifier ("MAIN__");
474 :
475 : /* Intrinsic procedures are never mangled. */
476 25796 : if (sym->attr.proc == PROC_INTRINSIC)
477 11072 : return get_identifier (sym->name);
478 :
479 14724 : if (flag_underscoring)
480 : {
481 13909 : has_underscore = strchr (sym->name, '_') != 0;
482 13909 : if (flag_second_underscore && has_underscore)
483 201 : snprintf (name, sizeof name, "%s__", sym->name);
484 : else
485 13708 : snprintf (name, sizeof name, "%s_", sym->name);
486 13909 : return get_identifier (name);
487 : }
488 : else
489 815 : return get_identifier (sym->name);
490 : }
491 : else
492 : {
493 25820 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
494 25820 : return get_identifier (name);
495 : }
496 : }
497 :
498 :
499 : void
500 103108 : gfc_set_decl_assembler_name (tree decl, tree name)
501 : {
502 103108 : tree target_mangled = targetm.mangle_decl_assembler_name (decl, name);
503 103108 : SET_DECL_ASSEMBLER_NAME (decl, target_mangled);
504 103108 : }
505 :
506 :
507 : /* Returns true if a variable of specified size should go on the stack. */
508 :
509 : bool
510 171694 : gfc_can_put_var_on_stack (tree size)
511 : {
512 171694 : unsigned HOST_WIDE_INT low;
513 :
514 171694 : if (!INTEGER_CST_P (size))
515 : return 0;
516 :
517 164197 : if (flag_max_stack_var_size < 0)
518 : return 1;
519 :
520 136469 : if (!tree_fits_uhwi_p (size))
521 : return 0;
522 :
523 136469 : low = TREE_INT_CST_LOW (size);
524 136469 : 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 174130 : gfc_finish_decl (tree decl)
576 : {
577 174130 : gcc_assert (TREE_CODE (decl) == PARM_DECL
578 : || DECL_INITIAL (decl) == NULL_TREE);
579 :
580 174130 : 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 419987 : gfc_finish_decl_attrs (tree decl, symbol_attribute *attr)
611 : {
612 419987 : if (!attr->dimension && !attr->codimension)
613 : {
614 : /* Handle scalar allocatable variables. */
615 333031 : if (attr->allocatable)
616 : {
617 6799 : gfc_allocate_lang_decl (decl);
618 6799 : GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1;
619 : }
620 : /* Handle scalar pointer variables. */
621 333031 : if (attr->pointer)
622 : {
623 41627 : gfc_allocate_lang_decl (decl);
624 41627 : GFC_DECL_SCALAR_POINTER (decl) = 1;
625 : }
626 333031 : if (attr->target)
627 : {
628 25283 : gfc_allocate_lang_decl (decl);
629 25283 : GFC_DECL_SCALAR_TARGET (decl) = 1;
630 : }
631 : }
632 419987 : }
633 :
634 :
635 : /* Apply symbol attributes to a variable, and add it to the function scope. */
636 :
637 : static void
638 184775 : gfc_finish_var_decl (tree decl, gfc_symbol * sym)
639 : {
640 184775 : tree new_type;
641 :
642 : /* Set DECL_VALUE_EXPR for Cray Pointees. */
643 184775 : 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 184775 : if (sym->attr.target)
651 27599 : TREE_ADDRESSABLE (decl) = 1;
652 :
653 : /* If it wasn't used we wouldn't be getting it. */
654 184775 : TREE_USED (decl) = 1;
655 :
656 184775 : 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 184775 : if (current_function_decl != NULL_TREE)
664 : {
665 165312 : if (sym->ns->proc_name
666 165306 : && (sym->ns->proc_name->backend_decl == current_function_decl
667 17984 : || sym->result == sym))
668 147322 : gfc_add_decl_to_function (decl);
669 17990 : 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 17941 : else if (sym->ns->proc_name
686 17935 : && sym->ns->proc_name->attr.flavor == FL_LABEL)
687 : /* This is a BLOCK construct. */
688 12977 : add_decl_as_local (decl);
689 : else
690 4964 : gfc_add_decl_to_parent_function (decl);
691 : }
692 :
693 184775 : if (sym->attr.cray_pointee)
694 : return;
695 :
696 184487 : 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 184487 : 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 184374 : 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 184373 : else if (sym->module && !sym->attr.result && !sym->attr.dummy)
733 : {
734 : /* TODO: Don't set sym->module for result or dummy variables. */
735 19454 : gcc_assert (current_function_decl == NULL_TREE || sym->result == sym);
736 :
737 19454 : TREE_PUBLIC (decl) = 1;
738 19454 : TREE_STATIC (decl) = 1;
739 19454 : 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 184487 : if (!sym->attr.use_assoc
753 184377 : && (sym->attr.save != SAVE_NONE || sym->attr.data
754 148601 : || (sym->value && sym->ns->proc_name->attr.is_main_program)
755 144271 : || (flag_coarray == GFC_FCOARRAY_LIB
756 2354 : && sym->attr.codimension && !sym->attr.allocatable)))
757 40279 : TREE_STATIC (decl) = 1;
758 :
759 : /* Treat asynchronous variables the same as volatile, for now. */
760 184487 : if (sym->attr.volatile_ || sym->attr.asynchronous)
761 : {
762 773 : TREE_THIS_VOLATILE (decl) = 1;
763 773 : TREE_SIDE_EFFECTS (decl) = 1;
764 773 : new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE);
765 773 : TREE_TYPE (decl) = new_type;
766 : }
767 :
768 : /* Keep variables larger than max-stack-var-size off stack. */
769 184481 : if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive)
770 161501 : && !sym->attr.automatic
771 161488 : && !sym->attr.associate_var
772 153266 : && sym->attr.save != SAVE_EXPLICIT
773 149575 : && sym->attr.save != SAVE_IMPLICIT
774 119546 : && INTEGER_CST_P (DECL_SIZE_UNIT (decl))
775 119155 : && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
776 : /* Put variable length auto array pointers always into stack. */
777 141 : && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE
778 2 : || sym->attr.dimension == 0
779 2 : || sym->as->type != AS_EXPLICIT
780 2 : || sym->attr.pointer
781 2 : || sym->attr.allocatable)
782 184626 : && !DECL_ARTIFICIAL (decl))
783 : {
784 138 : if (flag_max_stack_var_size > 0
785 131 : && !(sym->ns->proc_name
786 131 : && sym->ns->proc_name->attr.is_main_program))
787 32 : gfc_warning (OPT_Wsurprising,
788 : "Array %qs at %L is larger than limit set by "
789 : "%<-fmax-stack-var-size=%>, moved from stack to static "
790 : "storage. This makes the procedure unsafe when called "
791 : "recursively, or concurrently from multiple threads. "
792 : "Consider increasing the %<-fmax-stack-var-size=%> "
793 : "limit (or use %<-frecursive%>, which implies "
794 : "unlimited %<-fmax-stack-var-size%>) - or change the "
795 : "code to use an ALLOCATABLE array. If the variable is "
796 : "never accessed concurrently, this warning can be "
797 : "ignored, and the variable could also be declared with "
798 : "the SAVE attribute.",
799 : sym->name, &sym->declared_at);
800 :
801 138 : TREE_STATIC (decl) = 1;
802 :
803 : /* Because the size of this variable isn't known until now, we may have
804 : greedily added an initializer to this variable (in build_init_assign)
805 : even though the max-stack-var-size indicates the variable should be
806 : static. Therefore we rip out the automatic initializer here and
807 : replace it with a static one. */
808 138 : gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name);
809 138 : gfc_code *prev = NULL;
810 138 : gfc_code *code = sym->ns->code;
811 138 : while (code && code->op == EXEC_INIT_ASSIGN)
812 : {
813 : /* Look for an initializer meant for this symbol. */
814 8 : if (code->expr1->symtree == st)
815 : {
816 8 : if (prev)
817 0 : prev->next = code->next;
818 : else
819 8 : sym->ns->code = code->next;
820 :
821 : break;
822 : }
823 :
824 0 : prev = code;
825 0 : code = code->next;
826 : }
827 146 : if (code && code->op == EXEC_INIT_ASSIGN)
828 : {
829 : /* Keep the init expression for a static initializer. */
830 8 : sym->value = code->expr2;
831 : /* Cleanup the defunct code object, without freeing the init expr. */
832 8 : code->expr2 = NULL;
833 8 : gfc_free_statement (code);
834 8 : free (code);
835 : }
836 : }
837 :
838 184487 : if (sym->attr.omp_allocate && TREE_STATIC (decl))
839 : {
840 9 : struct gfc_omp_namelist *n;
841 35 : for (n = sym->ns->omp_allocate; n; n = n->next)
842 35 : if (n->sym == sym)
843 : break;
844 9 : tree alloc = gfc_conv_constant_to_tree (n->u2.allocator);
845 9 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align)
846 : : NULL_TREE);
847 9 : DECL_ATTRIBUTES (decl)
848 18 : = tree_cons (get_identifier ("omp allocate"),
849 9 : build_tree_list (alloc, align), DECL_ATTRIBUTES (decl));
850 : }
851 :
852 : /* Mark weak variables. */
853 184487 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
854 1 : declare_weak (decl);
855 :
856 : /* Handle threadprivate variables. */
857 184487 : if (sym->attr.threadprivate
858 184487 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
859 151 : set_decl_tls_model (decl, decl_default_tls_model (decl));
860 :
861 184487 : gfc_finish_decl_attrs (decl, &sym->attr);
862 : }
863 :
864 :
865 : /* Allocate the lang-specific part of a decl. */
866 :
867 : void
868 108383 : gfc_allocate_lang_decl (tree decl)
869 : {
870 108383 : if (DECL_LANG_SPECIFIC (decl) == NULL)
871 103085 : DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> ();
872 108383 : }
873 :
874 :
875 : /* Determine order of two symbol declarations. */
876 :
877 : static bool
878 5674 : decl_order (gfc_symbol *sym1, gfc_symbol *sym2)
879 : {
880 5674 : if (sym1->decl_order > sym2->decl_order)
881 : return true;
882 : else
883 0 : return false;
884 : }
885 :
886 :
887 : /* Remember a symbol to generate initialization/cleanup code at function
888 : entry/exit. */
889 :
890 : static void
891 83038 : gfc_defer_symbol_init (gfc_symbol * sym)
892 : {
893 83038 : gfc_symbol *p;
894 83038 : gfc_symbol *last;
895 83038 : gfc_symbol *head;
896 :
897 : /* Don't add a symbol twice. */
898 83038 : if (sym->tlink)
899 : return;
900 :
901 77374 : last = head = sym->ns->proc_name;
902 77374 : p = last->tlink;
903 :
904 77374 : gfc_function_dependency (sym, head);
905 :
906 : /* Make sure that setup code for dummy variables which are used in the
907 : setup of other variables is generated first. */
908 77374 : if (sym->attr.dummy)
909 : {
910 : /* Find the first dummy arg seen after us, or the first non-dummy arg.
911 : This is a circular list, so don't go past the head. */
912 : while (p != head
913 16760 : && (!p->attr.dummy || decl_order (p, sym)))
914 : {
915 3315 : last = p;
916 3315 : p = p->tlink;
917 : }
918 : }
919 63929 : else if (sym->fn_result_dep)
920 : {
921 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
922 : function result (ie. proc_name = proc_name->result), make sure that the
923 : order in the tlink chain is such that the code appears in declaration
924 : order. This ensures that mutual dependencies between these symbols are
925 : respected. */
926 : while (p != head
927 228 : && (!p->attr.result || decl_order (sym, p)))
928 : {
929 162 : last = p;
930 162 : p = p->tlink;
931 : }
932 : }
933 : /* Insert in between last and p. */
934 77374 : last->tlink = sym;
935 77374 : sym->tlink = p;
936 : }
937 :
938 :
939 : /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the
940 : backend_decl for a module symbol, if it all ready exists. If the
941 : module gsymbol does not exist, it is created. If the symbol does
942 : not exist, it is added to the gsymbol namespace. Returns true if
943 : an existing backend_decl is found. */
944 :
945 : bool
946 14030 : gfc_get_module_backend_decl (gfc_symbol *sym)
947 : {
948 14030 : gfc_gsymbol *gsym;
949 14030 : gfc_symbol *s;
950 14030 : gfc_symtree *st;
951 :
952 14030 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
953 :
954 14030 : if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE))
955 : {
956 14030 : st = NULL;
957 14030 : s = NULL;
958 :
959 : /* Check for a symbol with the same name. */
960 368 : if (gsym)
961 13662 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
962 :
963 14030 : if (!s)
964 : {
965 536 : if (!gsym)
966 : {
967 368 : gsym = gfc_get_gsymbol (sym->module, false);
968 368 : gsym->type = GSYM_MODULE;
969 368 : gsym->ns = gfc_get_namespace (NULL, 0);
970 : }
971 :
972 536 : st = gfc_new_symtree (&gsym->ns->sym_root, sym->name);
973 536 : st->n.sym = sym;
974 536 : sym->refs++;
975 : }
976 13494 : else if (gfc_fl_struct (sym->attr.flavor))
977 : {
978 10792 : if (s && s->attr.flavor == FL_PROCEDURE)
979 : {
980 5820 : gfc_interface *intr;
981 5820 : gcc_assert (s->attr.generic);
982 5965 : for (intr = s->generic; intr; intr = intr->next)
983 5965 : if (gfc_fl_struct (intr->sym->attr.flavor))
984 : {
985 5820 : s = intr->sym;
986 5820 : break;
987 : }
988 : }
989 :
990 : /* Normally we can assume that s is a derived-type symbol since it
991 : shares a name with the derived-type sym. However if sym is a
992 : STRUCTURE, it may in fact share a name with any other basic type
993 : variable. If s is in fact of derived type then we can continue
994 : looking for a duplicate type declaration. */
995 10792 : if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED)
996 : {
997 0 : s = s->ts.u.derived;
998 : }
999 :
1000 10792 : if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl)
1001 : {
1002 25 : if (s->attr.flavor == FL_UNION)
1003 0 : s->backend_decl = gfc_get_union_type (s);
1004 : else
1005 25 : s->backend_decl = gfc_get_derived_type (s);
1006 : }
1007 10792 : gfc_copy_dt_decls_ifequal (s, sym, true);
1008 10792 : return true;
1009 : }
1010 2702 : else if (s->backend_decl)
1011 : {
1012 2690 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1013 532 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
1014 : true);
1015 2158 : else if (sym->ts.type == BT_CHARACTER)
1016 312 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
1017 2690 : sym->backend_decl = s->backend_decl;
1018 2690 : return true;
1019 : }
1020 : }
1021 : return false;
1022 : }
1023 :
1024 :
1025 : /* Create an array index type variable with function scope. */
1026 :
1027 : static tree
1028 45710 : create_index_var (const char * pfx, int nest)
1029 : {
1030 45710 : tree decl;
1031 :
1032 45710 : decl = gfc_create_var_np (gfc_array_index_type, pfx);
1033 45710 : if (nest)
1034 28 : gfc_add_decl_to_parent_function (decl);
1035 : else
1036 45682 : gfc_add_decl_to_function (decl);
1037 45710 : return decl;
1038 : }
1039 :
1040 :
1041 : /* Create variables to hold all the non-constant bits of info for a
1042 : descriptorless array. Remember these in the lang-specific part of the
1043 : type. */
1044 :
1045 : static void
1046 62947 : gfc_build_qualified_array (tree decl, gfc_symbol * sym)
1047 : {
1048 62947 : tree type;
1049 62947 : int dim;
1050 62947 : int nest;
1051 62947 : gfc_namespace* procns;
1052 62947 : symbol_attribute *array_attr;
1053 62947 : gfc_array_spec *as;
1054 62947 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1055 :
1056 62947 : type = TREE_TYPE (decl);
1057 62947 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1058 62947 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1059 :
1060 : /* We just use the descriptor, if there is one. */
1061 62947 : if (GFC_DESCRIPTOR_TYPE_P (type))
1062 : return;
1063 :
1064 47273 : gcc_assert (GFC_ARRAY_TYPE_P (type));
1065 47273 : procns = gfc_find_proc_namespace (sym->ns);
1066 94546 : nest = (procns->proc_name->backend_decl != current_function_decl)
1067 47273 : && !sym->attr.contained;
1068 :
1069 856 : if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB
1070 541 : && as->type != AS_ASSUMED_SHAPE
1071 47791 : && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE)
1072 : {
1073 518 : tree token;
1074 518 : tree token_type = build_qualified_type (pvoid_type_node,
1075 : TYPE_QUAL_RESTRICT);
1076 :
1077 518 : if (sym->module && (sym->attr.use_assoc
1078 28 : || sym->ns->proc_name->attr.flavor == FL_MODULE))
1079 : {
1080 33 : tree token_name
1081 33 : = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"),
1082 : IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym))));
1083 33 : token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name,
1084 : token_type);
1085 33 : if (sym->attr.use_assoc
1086 28 : || (sym->attr.host_assoc && sym->attr.used_in_submodule))
1087 7 : DECL_EXTERNAL (token) = 1;
1088 : else
1089 26 : TREE_STATIC (token) = 1;
1090 :
1091 33 : TREE_PUBLIC (token) = 1;
1092 :
1093 33 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
1094 : {
1095 0 : DECL_VISIBILITY (token) = VISIBILITY_HIDDEN;
1096 0 : DECL_VISIBILITY_SPECIFIED (token) = true;
1097 : }
1098 : }
1099 : else
1100 : {
1101 485 : token = gfc_create_var_np (token_type, "caf_token");
1102 485 : TREE_STATIC (token) = 1;
1103 : }
1104 :
1105 518 : GFC_TYPE_ARRAY_CAF_TOKEN (type) = token;
1106 518 : DECL_ARTIFICIAL (token) = 1;
1107 518 : DECL_NONALIASED (token) = 1;
1108 :
1109 518 : if (sym->module && !sym->attr.use_assoc)
1110 : {
1111 28 : module_htab_entry *mod
1112 28 : = cur_module ? cur_module : gfc_find_module (sym->module);
1113 28 : pushdecl (token);
1114 28 : DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl;
1115 28 : gfc_module_add_decl (mod, token);
1116 28 : }
1117 490 : else if (sym->attr.host_assoc
1118 490 : && TREE_CODE (DECL_CONTEXT (current_function_decl))
1119 : != TRANSLATION_UNIT_DECL)
1120 3 : gfc_add_decl_to_parent_function (token);
1121 : else
1122 487 : gfc_add_decl_to_function (token);
1123 : }
1124 :
1125 112580 : for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++)
1126 : {
1127 65307 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1128 : {
1129 521 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1130 521 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1131 : }
1132 : /* Don't try to use the unknown bound for assumed shape arrays. */
1133 65307 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1134 65307 : && (as->type != AS_ASSUMED_SIZE
1135 2111 : || dim < GFC_TYPE_ARRAY_RANK (type) - 1))
1136 : {
1137 18581 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1138 18581 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1139 : }
1140 :
1141 65307 : if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE)
1142 : {
1143 11087 : GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest);
1144 11087 : suppress_warning (GFC_TYPE_ARRAY_STRIDE (type, dim));
1145 : }
1146 : }
1147 48403 : for (dim = GFC_TYPE_ARRAY_RANK (type);
1148 48403 : dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++)
1149 : {
1150 1130 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1151 : {
1152 114 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1153 114 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1154 : }
1155 : /* Don't try to use the unknown ubound for the last coarray dimension. */
1156 1130 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1157 1130 : && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1)
1158 : {
1159 60 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1160 60 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1161 : }
1162 : }
1163 47273 : if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE)
1164 : {
1165 8588 : GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type,
1166 : "offset");
1167 8588 : suppress_warning (GFC_TYPE_ARRAY_OFFSET (type));
1168 :
1169 8588 : if (nest)
1170 8 : gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type));
1171 : else
1172 8580 : gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type));
1173 : }
1174 :
1175 64375 : if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE && as->rank != 0
1176 64334 : && as->type != AS_ASSUMED_SIZE)
1177 : {
1178 15347 : GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest);
1179 15347 : suppress_warning (GFC_TYPE_ARRAY_SIZE (type));
1180 : }
1181 :
1182 47273 : if (POINTER_TYPE_P (type))
1183 : {
1184 20652 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type)));
1185 20652 : gcc_assert (TYPE_LANG_SPECIFIC (type)
1186 : == TYPE_LANG_SPECIFIC (TREE_TYPE (type)));
1187 20652 : type = TREE_TYPE (type);
1188 : }
1189 :
1190 47273 : if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type))
1191 : {
1192 15347 : tree size, range;
1193 :
1194 46041 : size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
1195 15347 : GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node);
1196 15347 : range = build_range_type (gfc_array_index_type, gfc_index_zero_node,
1197 : size);
1198 15347 : TYPE_DOMAIN (type) = range;
1199 15347 : layout_type (type);
1200 : }
1201 :
1202 85905 : if (TYPE_NAME (type) != NULL_TREE && as->rank > 0
1203 38173 : && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE
1204 84120 : && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1)))
1205 : {
1206 7147 : tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type));
1207 :
1208 7535 : for (dim = 0; dim < as->rank - 1; dim++)
1209 : {
1210 388 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1211 388 : gtype = TREE_TYPE (gtype);
1212 : }
1213 7147 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1214 7147 : if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL)
1215 7147 : TYPE_NAME (type) = NULL_TREE;
1216 : }
1217 :
1218 47273 : if (TYPE_NAME (type) == NULL_TREE)
1219 : {
1220 15788 : tree gtype = TREE_TYPE (type), rtype, type_decl;
1221 :
1222 36314 : for (dim = as->rank - 1; dim >= 0; dim--)
1223 : {
1224 20526 : tree lbound, ubound;
1225 20526 : lbound = GFC_TYPE_ARRAY_LBOUND (type, dim);
1226 20526 : ubound = GFC_TYPE_ARRAY_UBOUND (type, dim);
1227 20526 : rtype = build_range_type (gfc_array_index_type, lbound, ubound);
1228 20526 : gtype = build_array_type (gtype, rtype);
1229 : /* Ensure the bound variables aren't optimized out at -O0.
1230 : For -O1 and above they often will be optimized out, but
1231 : can be tracked by VTA. Also set DECL_NAMELESS, so that
1232 : the artificial lbound.N or ubound.N DECL_NAME doesn't
1233 : end up in debug info. */
1234 20526 : if (lbound
1235 20526 : && VAR_P (lbound)
1236 521 : && DECL_ARTIFICIAL (lbound)
1237 21047 : && DECL_IGNORED_P (lbound))
1238 : {
1239 521 : if (DECL_NAME (lbound)
1240 521 : && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)),
1241 : "lbound") != 0)
1242 521 : DECL_NAMELESS (lbound) = 1;
1243 521 : DECL_IGNORED_P (lbound) = 0;
1244 : }
1245 20526 : if (ubound
1246 20138 : && VAR_P (ubound)
1247 18581 : && DECL_ARTIFICIAL (ubound)
1248 39107 : && DECL_IGNORED_P (ubound))
1249 : {
1250 18581 : if (DECL_NAME (ubound)
1251 18581 : && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)),
1252 : "ubound") != 0)
1253 18581 : DECL_NAMELESS (ubound) = 1;
1254 18581 : DECL_IGNORED_P (ubound) = 0;
1255 : }
1256 : }
1257 15788 : TYPE_NAME (type) = type_decl = build_decl (input_location,
1258 : TYPE_DECL, NULL, gtype);
1259 15788 : DECL_ORIGINAL_TYPE (type_decl) = gtype;
1260 : }
1261 : }
1262 :
1263 :
1264 : /* For some dummy arguments we don't use the actual argument directly.
1265 : Instead we create a local decl and use that. This allows us to perform
1266 : initialization, and construct full type information. */
1267 :
1268 : static tree
1269 24918 : gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy)
1270 : {
1271 24918 : tree decl;
1272 24918 : tree type;
1273 24918 : gfc_array_spec *as;
1274 24918 : symbol_attribute *array_attr;
1275 24918 : char *name;
1276 24918 : gfc_packed packed;
1277 24918 : int n;
1278 24918 : bool known_size;
1279 24918 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1280 :
1281 : /* Use the array as and attr. */
1282 24918 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1283 24918 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1284 :
1285 : /* The dummy is returned for pointer, allocatable or assumed rank arrays.
1286 : For class arrays the information if sym is an allocatable or pointer
1287 : object needs to be checked explicitly (IS_CLASS_ARRAY can be false for
1288 : too many reasons to be of use here). */
1289 24918 : if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
1290 23053 : || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer)
1291 23053 : || array_attr->allocatable
1292 17992 : || (as && as->type == AS_ASSUMED_RANK))
1293 : return dummy;
1294 :
1295 : /* Add to list of variables if not a fake result variable.
1296 : These symbols are set on the symbol only, not on the class component. */
1297 14167 : if (sym->attr.result || sym->attr.dummy)
1298 13563 : gfc_defer_symbol_init (sym);
1299 :
1300 : /* For a class array the array descriptor is in the _data component, while
1301 : for a regular array the TREE_TYPE of the dummy is a pointer to the
1302 : descriptor. */
1303 14167 : type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy)
1304 : : TREE_TYPE (dummy));
1305 : /* type now is the array descriptor w/o any indirection. */
1306 14167 : gcc_assert (TREE_CODE (dummy) == PARM_DECL
1307 : && POINTER_TYPE_P (TREE_TYPE (dummy)));
1308 :
1309 : /* Do we know the element size? */
1310 14167 : known_size = sym->ts.type != BT_CHARACTER
1311 14167 : || INTEGER_CST_P (sym->ts.u.cl->backend_decl);
1312 :
1313 13287 : if (known_size && !GFC_DESCRIPTOR_TYPE_P (type))
1314 : {
1315 : /* For descriptorless arrays with known element size the actual
1316 : argument is sufficient. */
1317 6750 : gfc_build_qualified_array (dummy, sym);
1318 6750 : return dummy;
1319 : }
1320 :
1321 7417 : if (GFC_DESCRIPTOR_TYPE_P (type))
1322 : {
1323 : /* Create a descriptorless array pointer. */
1324 7048 : packed = PACKED_NO;
1325 :
1326 : /* Even when -frepack-arrays is used, symbols with TARGET attribute
1327 : are not repacked. */
1328 7048 : if (!flag_repack_arrays || sym->attr.target)
1329 : {
1330 7046 : if (as->type == AS_ASSUMED_SIZE)
1331 79 : packed = PACKED_FULL;
1332 : }
1333 : else
1334 : {
1335 2 : if (as->type == AS_EXPLICIT)
1336 : {
1337 3 : packed = PACKED_FULL;
1338 3 : for (n = 0; n < as->rank; n++)
1339 : {
1340 2 : if (!(as->upper[n]
1341 2 : && as->lower[n]
1342 2 : && as->upper[n]->expr_type == EXPR_CONSTANT
1343 2 : && as->lower[n]->expr_type == EXPR_CONSTANT))
1344 : {
1345 : packed = PACKED_PARTIAL;
1346 : break;
1347 : }
1348 : }
1349 : }
1350 : else
1351 : packed = PACKED_PARTIAL;
1352 : }
1353 :
1354 : /* For classarrays the element type is required, but
1355 : gfc_typenode_for_spec () returns the array descriptor. */
1356 7048 : type = is_classarray ? gfc_get_element_type (type)
1357 6150 : : gfc_typenode_for_spec (&sym->ts);
1358 7048 : type = gfc_get_nodesc_array_type (type, as, packed,
1359 7048 : !sym->attr.target);
1360 : }
1361 : else
1362 : {
1363 : /* We now have an expression for the element size, so create a fully
1364 : qualified type. Reset sym->backend decl or this will just return the
1365 : old type. */
1366 369 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1367 369 : sym->backend_decl = NULL_TREE;
1368 369 : type = gfc_sym_type (sym);
1369 369 : packed = PACKED_FULL;
1370 : }
1371 :
1372 7417 : ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0);
1373 7417 : decl = build_decl (input_location,
1374 : VAR_DECL, get_identifier (name), type);
1375 :
1376 7417 : DECL_ARTIFICIAL (decl) = 1;
1377 7417 : DECL_NAMELESS (decl) = 1;
1378 7417 : TREE_PUBLIC (decl) = 0;
1379 7417 : TREE_STATIC (decl) = 0;
1380 7417 : DECL_EXTERNAL (decl) = 0;
1381 :
1382 : /* Avoid uninitialized warnings for optional dummy arguments. */
1383 7417 : if ((sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.optional)
1384 7417 : || sym->attr.optional)
1385 804 : suppress_warning (decl);
1386 :
1387 : /* We should never get deferred shape arrays here. We used to because of
1388 : frontend bugs. */
1389 7417 : gcc_assert (as->type != AS_DEFERRED);
1390 :
1391 7417 : if (packed == PACKED_PARTIAL)
1392 1 : GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1;
1393 7416 : else if (packed == PACKED_FULL)
1394 448 : GFC_DECL_PACKED_ARRAY (decl) = 1;
1395 :
1396 7417 : gfc_build_qualified_array (decl, sym);
1397 :
1398 7417 : if (DECL_LANG_SPECIFIC (dummy))
1399 982 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy);
1400 : else
1401 6435 : gfc_allocate_lang_decl (decl);
1402 :
1403 7417 : GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy;
1404 :
1405 7417 : if (sym->ns->proc_name->backend_decl == current_function_decl
1406 518 : || sym->attr.contained)
1407 7409 : gfc_add_decl_to_function (decl);
1408 : else
1409 8 : gfc_add_decl_to_parent_function (decl);
1410 :
1411 : return decl;
1412 : }
1413 :
1414 : /* Return a constant or a variable to use as a string length. Does not
1415 : add the decl to the current scope. */
1416 :
1417 : static tree
1418 15775 : gfc_create_string_length (gfc_symbol * sym)
1419 : {
1420 15775 : gcc_assert (sym->ts.u.cl);
1421 15775 : gfc_conv_const_charlen (sym->ts.u.cl);
1422 :
1423 15775 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1424 : {
1425 3477 : tree length;
1426 3477 : const char *name;
1427 :
1428 : /* The string length variable shall be in static memory if it is either
1429 : explicitly SAVED, a module variable or with -fno-automatic. Only
1430 : relevant is "len=:" - otherwise, it is either a constant length or
1431 : it is an automatic variable. */
1432 6954 : bool static_length = sym->attr.save
1433 3300 : || sym->ns->proc_name->attr.flavor == FL_MODULE
1434 6777 : || (flag_max_stack_var_size == 0
1435 2 : && sym->ts.deferred && !sym->attr.dummy
1436 0 : && !sym->attr.result && !sym->attr.function);
1437 :
1438 : /* Also prefix the mangled name. We need to call GFC_PREFIX for static
1439 : variables as some systems do not support the "." in the assembler name.
1440 : For nonstatic variables, the "." does not appear in assembler. */
1441 3300 : if (static_length)
1442 : {
1443 177 : if (sym->module)
1444 54 : name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module,
1445 : sym->name);
1446 : else
1447 123 : name = gfc_get_string (GFC_PREFIX ("%s"), sym->name);
1448 : }
1449 3300 : else if (sym->module)
1450 0 : name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name);
1451 : else
1452 3300 : name = gfc_get_string (".%s", sym->name);
1453 :
1454 3477 : length = build_decl (input_location,
1455 : VAR_DECL, get_identifier (name),
1456 : gfc_charlen_type_node);
1457 3477 : DECL_ARTIFICIAL (length) = 1;
1458 3477 : TREE_USED (length) = 1;
1459 3477 : if (sym->ns->proc_name->tlink != NULL)
1460 3226 : gfc_defer_symbol_init (sym);
1461 :
1462 3477 : sym->ts.u.cl->backend_decl = length;
1463 :
1464 3477 : if (static_length)
1465 177 : TREE_STATIC (length) = 1;
1466 :
1467 3477 : if (sym->ns->proc_name->attr.flavor == FL_MODULE
1468 54 : && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used))
1469 54 : TREE_PUBLIC (length) = 1;
1470 : }
1471 :
1472 15775 : gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE);
1473 15775 : return sym->ts.u.cl->backend_decl;
1474 : }
1475 :
1476 : /* If a variable is assigned a label, we add another two auxiliary
1477 : variables. */
1478 :
1479 : static void
1480 66 : gfc_add_assign_aux_vars (gfc_symbol * sym)
1481 : {
1482 66 : tree addr;
1483 66 : tree length;
1484 66 : tree decl;
1485 :
1486 66 : gcc_assert (sym->backend_decl);
1487 :
1488 66 : decl = sym->backend_decl;
1489 66 : gfc_allocate_lang_decl (decl);
1490 66 : GFC_DECL_ASSIGN (decl) = 1;
1491 66 : length = build_decl (input_location,
1492 : VAR_DECL, create_tmp_var_name (sym->name),
1493 : gfc_charlen_type_node);
1494 66 : addr = build_decl (input_location,
1495 : VAR_DECL, create_tmp_var_name (sym->name),
1496 : pvoid_type_node);
1497 66 : gfc_finish_var_decl (length, sym);
1498 66 : gfc_finish_var_decl (addr, sym);
1499 : /* STRING_LENGTH is also used as flag. Less than -1 means that
1500 : ASSIGN_ADDR cannot be used. Equal -1 means that ASSIGN_ADDR is the
1501 : target label's address. Otherwise, value is the length of a format string
1502 : and ASSIGN_ADDR is its address. */
1503 66 : if (TREE_STATIC (length))
1504 1 : DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2);
1505 : else
1506 65 : gfc_defer_symbol_init (sym);
1507 :
1508 66 : GFC_DECL_STRING_LEN (decl) = length;
1509 66 : GFC_DECL_ASSIGN_ADDR (decl) = addr;
1510 66 : }
1511 :
1512 :
1513 : static void
1514 287521 : add_attributes_to_decl (tree *decl_p, const gfc_symbol *sym)
1515 : {
1516 287521 : unsigned id;
1517 287521 : tree list = NULL_TREE;
1518 287521 : symbol_attribute sym_attr = sym->attr;
1519 :
1520 3162731 : for (id = 0; id < EXT_ATTR_NUM; id++)
1521 2875210 : if (sym_attr.ext_attr & (1 << id) && ext_attr_list[id].middle_end_name)
1522 : {
1523 0 : tree ident = get_identifier (ext_attr_list[id].middle_end_name);
1524 0 : list = tree_cons (ident, NULL_TREE, list);
1525 : }
1526 :
1527 287521 : tree clauses = NULL_TREE;
1528 :
1529 287521 : if (sym_attr.oacc_routine_lop != OACC_ROUTINE_LOP_NONE)
1530 : {
1531 355 : omp_clause_code code;
1532 355 : switch (sym_attr.oacc_routine_lop)
1533 : {
1534 : case OACC_ROUTINE_LOP_GANG:
1535 : code = OMP_CLAUSE_GANG;
1536 : break;
1537 : case OACC_ROUTINE_LOP_WORKER:
1538 : code = OMP_CLAUSE_WORKER;
1539 : break;
1540 : case OACC_ROUTINE_LOP_VECTOR:
1541 : code = OMP_CLAUSE_VECTOR;
1542 : break;
1543 : case OACC_ROUTINE_LOP_SEQ:
1544 : code = OMP_CLAUSE_SEQ;
1545 : break;
1546 0 : case OACC_ROUTINE_LOP_NONE:
1547 0 : case OACC_ROUTINE_LOP_ERROR:
1548 0 : default:
1549 0 : gcc_unreachable ();
1550 : }
1551 355 : tree c = build_omp_clause (UNKNOWN_LOCATION, code);
1552 355 : OMP_CLAUSE_CHAIN (c) = clauses;
1553 355 : clauses = c;
1554 :
1555 355 : tree dims = oacc_build_routine_dims (clauses);
1556 355 : list = oacc_replace_fn_attrib_attr (list, dims);
1557 : }
1558 :
1559 287521 : if (sym_attr.oacc_routine_nohost)
1560 : {
1561 40 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_NOHOST);
1562 40 : OMP_CLAUSE_CHAIN (c) = clauses;
1563 40 : clauses = c;
1564 : }
1565 :
1566 : /* FIXME: 'declare_target_link' permits both any and host, but
1567 : will fail if one sets OMP_CLAUSE_DEVICE_TYPE_KIND. */
1568 287521 : if (sym_attr.omp_device_type != OMP_DEVICE_TYPE_UNSET
1569 414 : && !sym_attr.omp_declare_target_link
1570 406 : && !sym_attr.omp_declare_target_indirect /* implies 'any' */)
1571 : {
1572 360 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_DEVICE_TYPE);
1573 360 : switch (sym_attr.omp_device_type)
1574 : {
1575 5 : case OMP_DEVICE_TYPE_HOST:
1576 5 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_HOST;
1577 5 : break;
1578 4 : case OMP_DEVICE_TYPE_NOHOST:
1579 4 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_NOHOST;
1580 4 : break;
1581 351 : case OMP_DEVICE_TYPE_ANY:
1582 351 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_ANY;
1583 351 : break;
1584 0 : default:
1585 0 : gcc_unreachable ();
1586 : }
1587 360 : OMP_CLAUSE_CHAIN (c) = clauses;
1588 360 : clauses = c;
1589 : }
1590 :
1591 : /* Also check trans-common.cc when updating/removing the following;
1592 : also update f95.c's gfc_gnu_attributes. */
1593 287521 : if (sym_attr.omp_groupprivate)
1594 6 : gfc_error ("Sorry, OMP GROUPPRIVATE not implemented, "
1595 6 : "used by %qs declared at %L", sym->name, &sym->declared_at);
1596 287515 : else if (sym_attr.omp_declare_target_local)
1597 : /* Use 'else if' as groupprivate implies 'local'. */
1598 0 : gfc_error ("Sorry, OMP DECLARE TARGET with LOCAL clause not implemented, "
1599 0 : "used by %qs declared at %L", sym->name, &sym->declared_at);
1600 :
1601 287521 : bool has_declare = true;
1602 287521 : if (sym_attr.omp_declare_target_link
1603 287513 : || sym_attr.oacc_declare_link)
1604 9 : list = tree_cons (get_identifier ("omp declare target link"),
1605 : clauses, list);
1606 287512 : else if (sym_attr.omp_declare_target
1607 286634 : || sym_attr.oacc_declare_create
1608 286591 : || sym_attr.oacc_declare_copyin
1609 286581 : || sym_attr.oacc_declare_deviceptr
1610 286581 : || sym_attr.oacc_declare_device_resident)
1611 947 : list = tree_cons (get_identifier ("omp declare target"),
1612 : clauses, list);
1613 : else
1614 : has_declare = false;
1615 :
1616 287521 : if (sym_attr.omp_declare_target_indirect)
1617 46 : list = tree_cons (get_identifier ("omp declare target indirect"),
1618 : clauses, list);
1619 :
1620 287521 : decl_attributes (decl_p, list, 0);
1621 :
1622 287521 : if (has_declare
1623 956 : && VAR_P (*decl_p)
1624 411 : && sym->ns->proc_name->attr.flavor != FL_MODULE)
1625 : {
1626 150 : has_declare = false;
1627 618 : for (gfc_namespace* ns = sym->ns->contained; ns; ns = ns->sibling)
1628 471 : if (ns->proc_name->attr.omp_declare_target)
1629 : {
1630 : has_declare = true;
1631 : break;
1632 : }
1633 : }
1634 :
1635 956 : if (has_declare && VAR_P (*decl_p) && has_declare)
1636 : {
1637 : /* Add to offload_vars; get_create does so for omp_declare_target,
1638 : omp_declare_target_link requires manual work. */
1639 264 : gcc_assert (symtab_node::get (*decl_p) == 0);
1640 264 : symtab_node *node = symtab_node::get_create (*decl_p);
1641 264 : if (node != NULL && sym_attr.omp_declare_target_link)
1642 : {
1643 8 : node->offloadable = 1;
1644 8 : if (ENABLE_OFFLOADING)
1645 : {
1646 : g->have_offload = true;
1647 : if (is_a <varpool_node *> (node))
1648 : vec_safe_push (offload_vars, *decl_p);
1649 : }
1650 : }
1651 : }
1652 287521 : }
1653 :
1654 :
1655 : static void build_function_decl (gfc_symbol * sym, bool global);
1656 :
1657 :
1658 : /* Return the decl for a gfc_symbol, create it if it doesn't already
1659 : exist. */
1660 :
1661 : tree
1662 1836911 : gfc_get_symbol_decl (gfc_symbol * sym)
1663 : {
1664 1836911 : tree decl;
1665 1836911 : tree length = NULL_TREE;
1666 1836911 : int byref;
1667 1836911 : bool intrinsic_array_parameter = false;
1668 1836911 : bool fun_or_res;
1669 :
1670 1836911 : gcc_assert (sym->attr.referenced
1671 : || sym->attr.flavor == FL_PROCEDURE
1672 : || sym->attr.use_assoc
1673 : || sym->attr.used_in_submodule
1674 : || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY
1675 : || (sym->module && sym->attr.if_source != IFSRC_DECL
1676 : && sym->backend_decl));
1677 :
1678 326277 : if (sym->attr.dummy && sym->ns->proc_name->attr.is_bind_c
1679 1860892 : && is_CFI_desc (sym, NULL))
1680 : {
1681 15489 : gcc_assert (sym->backend_decl && (sym->ts.type != BT_CHARACTER
1682 : || sym->ts.u.cl->backend_decl));
1683 : return sym->backend_decl;
1684 : }
1685 :
1686 1821422 : if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function)
1687 227173 : byref = gfc_return_by_reference (sym->ns->proc_name);
1688 : else
1689 : byref = 0;
1690 :
1691 : /* Make sure that the vtab for the declared type is completed. */
1692 1821422 : if (sym->ts.type == BT_CLASS)
1693 : {
1694 85640 : gfc_component *c = CLASS_DATA (sym);
1695 85640 : if (!c->ts.u.derived->backend_decl)
1696 : {
1697 2541 : gfc_find_derived_vtab (c->ts.u.derived);
1698 2541 : gfc_get_derived_type (sym->ts.u.derived);
1699 : }
1700 : }
1701 :
1702 : /* PDT parameterized array components and string_lengths must have the
1703 : 'len' parameters substituted for the expressions appearing in the
1704 : declaration of the entity and memory allocated/deallocated. */
1705 1821422 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1706 322641 : && sym->param_list != NULL
1707 4261 : && (gfc_current_ns == sym->ns
1708 691 : || (gfc_current_ns == sym->ns->parent
1709 636 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1710 3871 : && !(sym->attr.use_assoc || sym->attr.dummy || sym->attr.result))
1711 2951 : gfc_defer_symbol_init (sym);
1712 :
1713 1821422 : if ((sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_comp)
1714 68 : && (gfc_current_ns == sym->ns
1715 10 : || (gfc_current_ns == sym->ns->parent
1716 9 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1717 58 : && !(sym->attr.use_assoc || sym->attr.dummy || sym->attr.result))
1718 48 : gfc_defer_symbol_init (sym);
1719 :
1720 : /* Dummy PDT 'len' parameters should be checked when they are explicit. */
1721 1821422 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1722 322641 : && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
1723 11534 : && sym->param_list != NULL
1724 454 : && sym->attr.dummy)
1725 189 : gfc_defer_symbol_init (sym);
1726 :
1727 : /* All deferred character length procedures need to retain the backend
1728 : decl, which is a pointer to the character length in the caller's
1729 : namespace and to declare a local character length. */
1730 1821422 : if (!byref && sym->attr.function
1731 19298 : && sym->ts.type == BT_CHARACTER
1732 1373 : && sym->ts.deferred
1733 268 : && sym->ts.u.cl->passed_length == NULL
1734 12 : && sym->ts.u.cl->backend_decl
1735 0 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1736 : {
1737 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1738 0 : gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)));
1739 0 : sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1740 : }
1741 :
1742 17910 : fun_or_res = byref && (sym->attr.result
1743 14117 : || (sym->attr.function && sym->ts.deferred));
1744 1821422 : if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res)
1745 : {
1746 : /* Return via extra parameter. */
1747 314003 : if (sym->attr.result && byref
1748 3793 : && !sym->backend_decl)
1749 : {
1750 2418 : sym->backend_decl =
1751 1209 : DECL_ARGUMENTS (sym->ns->proc_name->backend_decl);
1752 : /* For entry master function skip over the __entry
1753 : argument. */
1754 1209 : if (sym->ns->proc_name->attr.entry_master)
1755 83 : sym->backend_decl = DECL_CHAIN (sym->backend_decl);
1756 : }
1757 :
1758 : /* Automatic array indices in module procedures need the backend_decl
1759 : to be extracted from the procedure formal arglist. */
1760 314003 : if (sym->attr.dummy && !sym->backend_decl)
1761 : {
1762 12 : gfc_formal_arglist *f;
1763 18 : for (f = sym->ns->proc_name->formal; f; f = f->next)
1764 : {
1765 18 : gfc_symbol *fsym = f->sym;
1766 18 : if (strcmp (sym->name, fsym->name))
1767 6 : continue;
1768 12 : sym->backend_decl = fsym->backend_decl;
1769 12 : break;
1770 : }
1771 : }
1772 :
1773 : /* Dummy variables should already have been created. */
1774 314003 : gcc_assert (sym->backend_decl);
1775 :
1776 : /* However, the string length of deferred arrays must be set. */
1777 314003 : if (sym->ts.type == BT_CHARACTER
1778 28851 : && sym->ts.deferred
1779 3608 : && sym->attr.dimension
1780 1336 : && sym->attr.allocatable)
1781 530 : gfc_defer_symbol_init (sym);
1782 :
1783 314003 : if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS)
1784 10059 : GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1;
1785 :
1786 : /* Create a character length variable. */
1787 314003 : if (sym->ts.type == BT_CHARACTER)
1788 : {
1789 : /* For a deferred dummy, make a new string length variable. */
1790 28851 : if (sym->ts.deferred
1791 3608 : &&
1792 3608 : (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl))
1793 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1794 :
1795 28851 : if (sym->ts.deferred && byref)
1796 : {
1797 : /* The string length of a deferred char array is stored in the
1798 : parameter at sym->ts.u.cl->backend_decl as a reference and
1799 : marked as a result. Exempt this variable from generating a
1800 : temporary for it. */
1801 751 : if (sym->attr.result)
1802 : {
1803 : /* We need to insert a indirect ref for param decls. */
1804 664 : if (sym->ts.u.cl->backend_decl
1805 664 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1806 : {
1807 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1808 0 : sym->ts.u.cl->backend_decl =
1809 0 : build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1810 : }
1811 : }
1812 : /* For all other parameters make sure, that they are copied so
1813 : that the value and any modifications are local to the routine
1814 : by generating a temporary variable. */
1815 87 : else if (sym->attr.function
1816 75 : && sym->ts.u.cl->passed_length == NULL
1817 0 : && sym->ts.u.cl->backend_decl)
1818 : {
1819 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1820 0 : if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)))
1821 0 : sym->ts.u.cl->backend_decl
1822 0 : = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1823 : else
1824 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1825 : }
1826 : }
1827 :
1828 28851 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1829 1 : length = gfc_create_string_length (sym);
1830 : else
1831 28850 : length = sym->ts.u.cl->backend_decl;
1832 28851 : if (VAR_P (length) && DECL_FILE_SCOPE_P (length))
1833 : {
1834 : /* Add the string length to the same context as the symbol. */
1835 689 : if (DECL_CONTEXT (length) == NULL_TREE)
1836 : {
1837 689 : if (sym->backend_decl == current_function_decl
1838 689 : || (DECL_CONTEXT (sym->backend_decl)
1839 : == current_function_decl))
1840 688 : gfc_add_decl_to_function (length);
1841 : else
1842 1 : gfc_add_decl_to_parent_function (length);
1843 : }
1844 :
1845 689 : gcc_assert (sym->backend_decl == current_function_decl
1846 : ? DECL_CONTEXT (length) == current_function_decl
1847 : : (DECL_CONTEXT (sym->backend_decl)
1848 : == DECL_CONTEXT (length)));
1849 :
1850 689 : gfc_defer_symbol_init (sym);
1851 : }
1852 : }
1853 :
1854 : /* Use a copy of the descriptor for dummy arrays. */
1855 314003 : if ((sym->attr.dimension || sym->attr.codimension)
1856 107540 : && !TREE_USED (sym->backend_decl))
1857 : {
1858 19877 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1859 : /* Prevent the dummy from being detected as unused if it is copied. */
1860 19877 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1861 5546 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1862 19877 : sym->backend_decl = decl;
1863 : }
1864 :
1865 : /* Returning the descriptor for dummy class arrays is hazardous, because
1866 : some caller is expecting an expression to apply the component refs to.
1867 : Therefore the descriptor is only created and stored in
1868 : sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then
1869 : responsible to extract it from there, when the descriptor is
1870 : desired. */
1871 27156 : if (IS_CLASS_COARRAY_OR_ARRAY (sym)
1872 324376 : && (!DECL_LANG_SPECIFIC (sym->backend_decl)
1873 8021 : || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl)))
1874 : {
1875 4234 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1876 : /* Prevent the dummy from being detected as unused if it is copied. */
1877 4234 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1878 898 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1879 4234 : sym->backend_decl = decl;
1880 : }
1881 :
1882 314003 : TREE_USED (sym->backend_decl) = 1;
1883 314003 : if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1884 6 : gfc_add_assign_aux_vars (sym);
1885 :
1886 314003 : if (sym->ts.type == BT_CLASS && sym->backend_decl
1887 27156 : && !IS_CLASS_COARRAY_OR_ARRAY (sym))
1888 16783 : GFC_DECL_CLASS (sym->backend_decl) = 1;
1889 :
1890 314003 : return sym->backend_decl;
1891 : }
1892 :
1893 15870 : if (sym->result == sym && sym->attr.assign
1894 1507424 : && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1895 1 : gfc_add_assign_aux_vars (sym);
1896 :
1897 1507419 : if (sym->backend_decl)
1898 : return sym->backend_decl;
1899 :
1900 : /* Special case for array-valued named constants from intrinsic
1901 : procedures; those are inlined. */
1902 199567 : if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER
1903 138 : && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV
1904 138 : || sym->from_intmod == INTMOD_ISO_C_BINDING))
1905 199567 : intrinsic_array_parameter = true;
1906 :
1907 : /* If use associated compilation, use the module
1908 : declaration. */
1909 199567 : if ((sym->attr.flavor == FL_VARIABLE
1910 17125 : || sym->attr.flavor == FL_PARAMETER)
1911 183995 : && (sym->attr.use_assoc || sym->attr.used_in_submodule)
1912 2815 : && !intrinsic_array_parameter
1913 2806 : && sym->module
1914 202373 : && gfc_get_module_backend_decl (sym))
1915 : {
1916 2690 : if (sym->ts.type == BT_CLASS && sym->backend_decl)
1917 39 : GFC_DECL_CLASS(sym->backend_decl) = 1;
1918 2690 : return sym->backend_decl;
1919 : }
1920 :
1921 196877 : if (sym->attr.flavor == FL_PROCEDURE)
1922 : {
1923 : /* Catch functions. Only used for actual parameters,
1924 : procedure pointers and procptr initialization targets. */
1925 15446 : if (sym->attr.use_assoc
1926 14617 : || sym->attr.used_in_submodule
1927 14611 : || sym->attr.intrinsic
1928 13320 : || sym->attr.if_source != IFSRC_DECL)
1929 : {
1930 3124 : decl = gfc_get_extern_function_decl (sym);
1931 : }
1932 : else
1933 : {
1934 12322 : if (!sym->backend_decl)
1935 12322 : build_function_decl (sym, false);
1936 12322 : decl = sym->backend_decl;
1937 : }
1938 15446 : return decl;
1939 : }
1940 :
1941 181431 : if (sym->ts.type == BT_UNKNOWN)
1942 0 : gfc_fatal_error ("%s at %L has no default type", sym->name,
1943 : &sym->declared_at);
1944 :
1945 181431 : if (sym->attr.intrinsic)
1946 0 : gfc_internal_error ("intrinsic variable which isn't a procedure");
1947 :
1948 : /* Create string length decl first so that they can be used in the
1949 : type declaration. For associate names, the target character
1950 : length is used. Set 'length' to a constant so that if the
1951 : string length is a variable, it is not finished a second time. */
1952 181431 : if (sym->ts.type == BT_CHARACTER)
1953 : {
1954 15789 : if (sym->attr.associate_var
1955 1773 : && sym->ts.deferred
1956 341 : && sym->assoc && sym->assoc->target
1957 341 : && ((sym->assoc->target->expr_type == EXPR_VARIABLE
1958 230 : && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER)
1959 298 : || sym->assoc->target->expr_type != EXPR_VARIABLE))
1960 154 : sym->ts.u.cl->backend_decl = NULL_TREE;
1961 :
1962 15789 : if (sym->attr.associate_var
1963 1773 : && sym->ts.u.cl->backend_decl
1964 627 : && (VAR_P (sym->ts.u.cl->backend_decl)
1965 362 : || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL))
1966 313 : length = gfc_index_zero_node;
1967 : else
1968 15476 : length = gfc_create_string_length (sym);
1969 : }
1970 :
1971 : /* Create the decl for the variable. */
1972 181431 : decl = build_decl (gfc_get_location (&sym->declared_at),
1973 : VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym));
1974 :
1975 : /* Symbols from modules should have their assembler names mangled.
1976 : This is done here rather than in gfc_finish_var_decl because it
1977 : is different for string length variables. */
1978 181431 : if (sym->module || sym->fn_result_spec)
1979 : {
1980 19526 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
1981 19526 : if (sym->attr.use_assoc && !intrinsic_array_parameter)
1982 113 : DECL_IGNORED_P (decl) = 1;
1983 : }
1984 :
1985 181431 : if (sym->attr.select_type_temporary)
1986 : {
1987 5666 : DECL_ARTIFICIAL (decl) = 1;
1988 5666 : DECL_IGNORED_P (decl) = 1;
1989 : }
1990 :
1991 181431 : if (sym->attr.dimension || sym->attr.codimension)
1992 : {
1993 : /* Create variables to hold the non-constant bits of array info. */
1994 48526 : gfc_build_qualified_array (decl, sym);
1995 :
1996 48526 : if (sym->attr.contiguous
1997 48457 : || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer))
1998 43790 : GFC_DECL_PACKED_ARRAY (decl) = 1;
1999 : }
2000 :
2001 : /* Remember this variable for allocation/cleanup. */
2002 133368 : if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension
2003 130601 : || (sym->ts.type == BT_CLASS &&
2004 4817 : (CLASS_DATA (sym)->attr.dimension
2005 2700 : || CLASS_DATA (sym)->attr.allocatable))
2006 127054 : || (sym->ts.type == BT_DERIVED
2007 30302 : && (sym->ts.u.derived->attr.alloc_comp
2008 23878 : || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save
2009 5252 : && !sym->ns->proc_name->attr.is_main_program
2010 2140 : && gfc_is_finalizable (sym->ts.u.derived, NULL))))
2011 : /* This applies a derived type default initializer. */
2012 301812 : || (sym->ts.type == BT_DERIVED
2013 23629 : && sym->attr.save == SAVE_NONE
2014 6565 : && !sym->attr.data
2015 6516 : && !sym->attr.allocatable
2016 6516 : && (sym->value && !sym->ns->proc_name->attr.is_main_program)
2017 528 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)))
2018 61578 : gfc_defer_symbol_init (sym);
2019 :
2020 : /* Set the vptr of unlimited polymorphic pointer variables so that
2021 : they do not cause segfaults in select type, when the selector
2022 : is an intrinsic type. Arrays are captured above. */
2023 181431 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
2024 1114 : && CLASS_DATA (sym)->attr.class_pointer
2025 679 : && !CLASS_DATA (sym)->attr.dimension && !sym->attr.dummy
2026 303 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc)
2027 172 : gfc_defer_symbol_init (sym);
2028 :
2029 181431 : if (sym->ts.type == BT_CHARACTER
2030 15789 : && sym->attr.allocatable
2031 1908 : && !sym->attr.dimension
2032 980 : && sym->ts.u.cl && sym->ts.u.cl->length
2033 198 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
2034 27 : gfc_defer_symbol_init (sym);
2035 :
2036 : /* Associate names can use the hidden string length variable
2037 : of their associated target. */
2038 181431 : if (sym->ts.type == BT_CHARACTER
2039 15789 : && TREE_CODE (length) != INTEGER_CST
2040 3272 : && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF)
2041 : {
2042 3212 : length = fold_convert (gfc_charlen_type_node, length);
2043 3212 : gfc_finish_var_decl (length, sym);
2044 3212 : if (!sym->attr.associate_var
2045 2186 : && VAR_P (length)
2046 2186 : && sym->value && sym->value->expr_type != EXPR_NULL
2047 6 : && sym->value->ts.u.cl->length)
2048 : {
2049 6 : gfc_expr *len = sym->value->ts.u.cl->length;
2050 6 : DECL_INITIAL (length) = gfc_conv_initializer (len, &len->ts,
2051 6 : TREE_TYPE (length),
2052 : false, false, false);
2053 6 : DECL_INITIAL (length) = fold_convert (gfc_charlen_type_node,
2054 : DECL_INITIAL (length));
2055 6 : }
2056 : else
2057 3206 : gcc_assert (!sym->value || sym->value->expr_type == EXPR_NULL);
2058 : }
2059 :
2060 181431 : gfc_finish_var_decl (decl, sym);
2061 :
2062 181431 : if (sym->ts.type == BT_CHARACTER)
2063 : /* Character variables need special handling. */
2064 15789 : gfc_allocate_lang_decl (decl);
2065 :
2066 181431 : if (sym->assoc && sym->attr.subref_array_pointer)
2067 392 : sym->attr.pointer = 1;
2068 :
2069 181431 : if (sym->attr.pointer && sym->attr.dimension
2070 4903 : && !sym->ts.deferred
2071 4614 : && !(sym->attr.select_type_temporary
2072 1088 : && !sym->attr.subref_array_pointer))
2073 3676 : GFC_DECL_PTR_ARRAY_P (decl) = 1;
2074 :
2075 181431 : if (sym->ts.type == BT_CLASS)
2076 4817 : GFC_DECL_CLASS(decl) = 1;
2077 :
2078 181431 : sym->backend_decl = decl;
2079 :
2080 181431 : if (sym->attr.assign)
2081 59 : gfc_add_assign_aux_vars (sym);
2082 :
2083 181431 : if (intrinsic_array_parameter)
2084 : {
2085 9 : TREE_STATIC (decl) = 1;
2086 9 : DECL_EXTERNAL (decl) = 0;
2087 : }
2088 :
2089 181431 : if (TREE_STATIC (decl)
2090 40651 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)
2091 40651 : && (sym->attr.save || sym->ns->proc_name->attr.is_main_program
2092 1524 : || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
2093 1485 : || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE)
2094 40598 : && (flag_coarray != GFC_FCOARRAY_LIB
2095 2146 : || !sym->attr.codimension || sym->attr.allocatable)
2096 221682 : && !(IS_PDT (sym) || IS_CLASS_PDT (sym)))
2097 : {
2098 : /* Add static initializer. For procedures, it is only needed if
2099 : SAVE is specified otherwise they need to be reinitialized
2100 : every time the procedure is entered. The TREE_STATIC is
2101 : in this case due to -fmax-stack-var-size=. */
2102 :
2103 39713 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2104 39713 : TREE_TYPE (decl), sym->attr.dimension
2105 39713 : || (sym->attr.codimension
2106 38 : && sym->attr.allocatable),
2107 39186 : sym->attr.pointer || sym->attr.allocatable
2108 38773 : || sym->ts.type == BT_CLASS,
2109 39713 : sym->attr.proc_pointer);
2110 : }
2111 :
2112 181431 : if (!TREE_STATIC (decl)
2113 140780 : && POINTER_TYPE_P (TREE_TYPE (decl))
2114 18554 : && !sym->attr.pointer
2115 12768 : && !sym->attr.allocatable
2116 10575 : && !sym->attr.proc_pointer
2117 192006 : && !sym->attr.select_type_temporary)
2118 8068 : DECL_BY_REFERENCE (decl) = 1;
2119 :
2120 181431 : if (sym->attr.associate_var)
2121 7245 : GFC_DECL_ASSOCIATE_VAR_P (decl) = 1;
2122 :
2123 : /* We only longer mark __def_init as read-only if it actually has an
2124 : initializer, it does not needlessly take up space in the
2125 : read-only section and can go into the BSS instead, see PR 84487.
2126 : Marking this as artificial means that OpenMP will treat this as
2127 : predetermined shared. */
2128 :
2129 181431 : bool def_init = startswith (sym->name, "__def_init");
2130 :
2131 181431 : if (sym->attr.vtab || def_init)
2132 : {
2133 19611 : DECL_ARTIFICIAL (decl) = 1;
2134 19611 : if (def_init && sym->value)
2135 3610 : TREE_READONLY (decl) = 1;
2136 : }
2137 :
2138 : /* Add attributes to variables. Functions are handled elsewhere. */
2139 181431 : add_attributes_to_decl (&decl, sym);
2140 :
2141 181431 : if (sym->ts.deferred && VAR_P (length))
2142 1832 : decl_attributes (&length, DECL_ATTRIBUTES (decl), 0);
2143 :
2144 181431 : return decl;
2145 : }
2146 :
2147 :
2148 : /* Substitute a temporary variable in place of the real one. */
2149 :
2150 : void
2151 5829 : gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save)
2152 : {
2153 5829 : save->attr = sym->attr;
2154 5829 : save->decl = sym->backend_decl;
2155 :
2156 5829 : gfc_clear_attr (&sym->attr);
2157 5829 : sym->attr.referenced = 1;
2158 5829 : sym->attr.flavor = FL_VARIABLE;
2159 :
2160 5829 : sym->backend_decl = decl;
2161 5829 : }
2162 :
2163 :
2164 : /* Restore the original variable. */
2165 :
2166 : void
2167 5829 : gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save)
2168 : {
2169 5829 : sym->attr = save->attr;
2170 5829 : sym->backend_decl = save->decl;
2171 5829 : }
2172 :
2173 :
2174 : /* Declare a procedure pointer. */
2175 :
2176 : static tree
2177 707 : get_proc_pointer_decl (gfc_symbol *sym)
2178 : {
2179 707 : tree decl;
2180 :
2181 707 : if (sym->module || sym->fn_result_spec)
2182 : {
2183 149 : const char *name;
2184 149 : gfc_gsymbol *gsym;
2185 :
2186 149 : name = mangled_identifier (sym);
2187 149 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
2188 149 : if (gsym != NULL)
2189 : {
2190 79 : gfc_symbol *s;
2191 79 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2192 79 : if (s && s->backend_decl)
2193 79 : return s->backend_decl;
2194 : }
2195 : }
2196 :
2197 628 : decl = sym->backend_decl;
2198 628 : if (decl)
2199 : return decl;
2200 :
2201 628 : decl = build_decl (input_location,
2202 : VAR_DECL, get_identifier (sym->name),
2203 : build_pointer_type (gfc_get_function_type (sym)));
2204 :
2205 628 : if (sym->module)
2206 : {
2207 : /* Apply name mangling. */
2208 70 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
2209 70 : if (sym->attr.use_assoc)
2210 0 : DECL_IGNORED_P (decl) = 1;
2211 : }
2212 :
2213 628 : if ((sym->ns->proc_name
2214 628 : && sym->ns->proc_name->backend_decl == current_function_decl)
2215 76 : || sym->attr.contained)
2216 552 : gfc_add_decl_to_function (decl);
2217 76 : else if (sym->ns->proc_name->attr.flavor != FL_MODULE)
2218 6 : gfc_add_decl_to_parent_function (decl);
2219 :
2220 628 : sym->backend_decl = decl;
2221 :
2222 : /* If a variable is USE associated, it's always external. */
2223 628 : if (sym->attr.use_assoc)
2224 : {
2225 0 : DECL_EXTERNAL (decl) = 1;
2226 0 : TREE_PUBLIC (decl) = 1;
2227 : }
2228 628 : else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE)
2229 : {
2230 : /* This is the declaration of a module variable. */
2231 70 : TREE_PUBLIC (decl) = 1;
2232 70 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
2233 : {
2234 8 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
2235 8 : DECL_VISIBILITY_SPECIFIED (decl) = true;
2236 : }
2237 70 : TREE_STATIC (decl) = 1;
2238 : }
2239 :
2240 628 : if (!sym->attr.use_assoc
2241 628 : && (sym->attr.save != SAVE_NONE || sym->attr.data
2242 491 : || (sym->value && sym->ns->proc_name->attr.is_main_program)))
2243 137 : TREE_STATIC (decl) = 1;
2244 :
2245 628 : if (TREE_STATIC (decl) && sym->value)
2246 : {
2247 : /* Add static initializer. */
2248 97 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2249 97 : TREE_TYPE (decl),
2250 97 : sym->attr.dimension,
2251 : false, true);
2252 : }
2253 :
2254 628 : add_attributes_to_decl (&decl, sym);
2255 :
2256 : /* Handle threadprivate procedure pointers. */
2257 628 : if (sym->attr.threadprivate
2258 628 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
2259 12 : set_decl_tls_model (decl, decl_default_tls_model (decl));
2260 :
2261 628 : return decl;
2262 : }
2263 :
2264 : static void
2265 : create_function_arglist (gfc_symbol *sym);
2266 :
2267 : /* Get a basic decl for an external function. */
2268 :
2269 : tree
2270 36910 : gfc_get_extern_function_decl (gfc_symbol * sym, gfc_actual_arglist *actual_args,
2271 : const char *fnspec)
2272 : {
2273 36910 : tree type;
2274 36910 : tree fndecl;
2275 36910 : gfc_expr e;
2276 36910 : gfc_intrinsic_sym *isym;
2277 36910 : gfc_expr argexpr;
2278 36910 : char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */
2279 36910 : tree name;
2280 36910 : tree mangled_name;
2281 36910 : gfc_gsymbol *gsym;
2282 :
2283 36910 : if (sym->backend_decl)
2284 : return sym->backend_decl;
2285 :
2286 : /* We should never be creating external decls for alternate entry points.
2287 : The procedure may be an alternate entry point, but we don't want/need
2288 : to know that. */
2289 36910 : gcc_assert (!(sym->attr.entry || sym->attr.entry_master));
2290 :
2291 36910 : if (sym->attr.proc_pointer)
2292 707 : return get_proc_pointer_decl (sym);
2293 :
2294 : /* See if this is an external procedure from the same file. If so,
2295 : return the backend_decl. If we are looking at a BIND(C)
2296 : procedure and the symbol is not BIND(C), or vice versa, we
2297 : haven't found the right procedure. */
2298 :
2299 36203 : if (sym->binding_label)
2300 : {
2301 2609 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label);
2302 2609 : if (gsym && !gsym->bind_c)
2303 : gsym = NULL;
2304 : }
2305 33594 : else if (sym->module == NULL)
2306 : {
2307 20041 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name);
2308 20041 : if (gsym && gsym->bind_c)
2309 : gsym = NULL;
2310 : }
2311 : else
2312 : {
2313 : /* Procedure from a different module. */
2314 : gsym = NULL;
2315 : }
2316 :
2317 11034 : if (gsym && !gsym->defined)
2318 : gsym = NULL;
2319 :
2320 : /* This can happen because of C binding. */
2321 7892 : if (gsym && gsym->ns && gsym->ns->proc_name
2322 7892 : && gsym->ns->proc_name->attr.flavor == FL_MODULE)
2323 557 : goto module_sym;
2324 :
2325 35646 : if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL)
2326 25847 : && !sym->backend_decl
2327 25847 : && gsym && gsym->ns
2328 7335 : && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION))
2329 7335 : && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic))
2330 : {
2331 7335 : if (!gsym->ns->proc_name->backend_decl)
2332 : {
2333 : /* By construction, the external function cannot be
2334 : a contained procedure. */
2335 775 : location_t old_loc = input_location;
2336 775 : push_cfun (NULL);
2337 :
2338 775 : gfc_create_function_decl (gsym->ns, true);
2339 :
2340 775 : pop_cfun ();
2341 775 : input_location = old_loc;
2342 : }
2343 :
2344 : /* If the namespace has entries, the proc_name is the
2345 : entry master. Find the entry and use its backend_decl.
2346 : otherwise, use the proc_name backend_decl. */
2347 7335 : if (gsym->ns->entries)
2348 : {
2349 : gfc_entry_list *entry = gsym->ns->entries;
2350 :
2351 1409 : for (; entry; entry = entry->next)
2352 : {
2353 1409 : if (strcmp (gsym->name, entry->sym->name) == 0)
2354 : {
2355 859 : sym->backend_decl = entry->sym->backend_decl;
2356 859 : break;
2357 : }
2358 : }
2359 : }
2360 : else
2361 6476 : sym->backend_decl = gsym->ns->proc_name->backend_decl;
2362 :
2363 7335 : if (sym->backend_decl)
2364 : {
2365 : /* Avoid problems of double deallocation of the backend declaration
2366 : later in gfc_trans_use_stmts; cf. PR 45087. */
2367 7335 : if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc)
2368 0 : sym->attr.use_assoc = 0;
2369 :
2370 7335 : return sym->backend_decl;
2371 : }
2372 : }
2373 :
2374 : /* See if this is a module procedure from the same file. If so,
2375 : return the backend_decl. */
2376 28311 : if (sym->module)
2377 14429 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
2378 :
2379 28868 : module_sym:
2380 28868 : if (gsym && gsym->ns
2381 11588 : && (gsym->type == GSYM_MODULE
2382 557 : || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE)))
2383 : {
2384 11588 : gfc_symbol *s;
2385 :
2386 11588 : s = NULL;
2387 11588 : if (gsym->type == GSYM_MODULE)
2388 11031 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2389 : else
2390 557 : gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s);
2391 :
2392 11588 : if (s && s->backend_decl)
2393 : {
2394 9556 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
2395 1168 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
2396 : true);
2397 8388 : else if (sym->ts.type == BT_CHARACTER)
2398 411 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
2399 9556 : sym->backend_decl = s->backend_decl;
2400 9556 : return sym->backend_decl;
2401 : }
2402 : }
2403 :
2404 19312 : if (sym->attr.intrinsic)
2405 : {
2406 : /* Call the resolution function to get the actual name. This is
2407 : a nasty hack which relies on the resolution functions only looking
2408 : at the first argument. We pass NULL for the second argument
2409 : otherwise things like AINT get confused. */
2410 1292 : isym = gfc_find_function (sym->name);
2411 1292 : gcc_assert (isym->resolve.f0 != NULL);
2412 :
2413 1292 : memset (&e, 0, sizeof (e));
2414 1292 : e.expr_type = EXPR_FUNCTION;
2415 :
2416 1292 : memset (&argexpr, 0, sizeof (argexpr));
2417 1292 : gcc_assert (isym->formal);
2418 1292 : argexpr.ts = isym->formal->ts;
2419 :
2420 1292 : if (isym->formal->next == NULL)
2421 1045 : isym->resolve.f1 (&e, &argexpr);
2422 : else
2423 : {
2424 247 : if (isym->formal->next->next == NULL)
2425 231 : isym->resolve.f2 (&e, &argexpr, NULL);
2426 : else
2427 : {
2428 16 : if (isym->formal->next->next->next == NULL)
2429 0 : isym->resolve.f3 (&e, &argexpr, NULL, NULL);
2430 : else
2431 : {
2432 : /* All specific intrinsics take less than 5 arguments. */
2433 16 : gcc_assert (isym->formal->next->next->next->next == NULL);
2434 16 : isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL);
2435 : }
2436 : }
2437 : }
2438 :
2439 1292 : if (flag_f2c
2440 438 : && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind)
2441 300 : || e.ts.type == BT_COMPLEX))
2442 : {
2443 : /* Specific which needs a different implementation if f2c
2444 : calling conventions are used. */
2445 240 : sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name);
2446 : }
2447 : else
2448 1052 : sprintf (s, "_gfortran_specific%s", e.value.function.name);
2449 :
2450 1292 : name = get_identifier (s);
2451 1292 : mangled_name = name;
2452 : }
2453 : else
2454 : {
2455 18020 : name = gfc_sym_identifier (sym);
2456 18020 : mangled_name = gfc_sym_mangled_function_id (sym);
2457 : }
2458 :
2459 19312 : type = gfc_get_function_type (sym, actual_args, fnspec);
2460 :
2461 19312 : fndecl = build_decl (gfc_get_location (&sym->declared_at),
2462 : FUNCTION_DECL, name, type);
2463 :
2464 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2465 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2466 : the opposite of declaring a function as static in C). */
2467 19312 : DECL_EXTERNAL (fndecl) = 1;
2468 19312 : TREE_PUBLIC (fndecl) = 1;
2469 :
2470 19312 : add_attributes_to_decl (&fndecl, sym);
2471 :
2472 19312 : gfc_set_decl_assembler_name (fndecl, mangled_name);
2473 :
2474 : /* Set the context of this decl. */
2475 19312 : if (0 && sym->ns && sym->ns->proc_name)
2476 : {
2477 : /* TODO: Add external decls to the appropriate scope. */
2478 : DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl;
2479 : }
2480 : else
2481 : {
2482 : /* Global declaration, e.g. intrinsic subroutine. */
2483 19312 : DECL_CONTEXT (fndecl) = NULL_TREE;
2484 : }
2485 :
2486 : /* Set attributes for PURE functions. A call to PURE function in the
2487 : Fortran 95 sense is both pure and without side effects in the C
2488 : sense. */
2489 19312 : if (sym->attr.pure || sym->attr.implicit_pure)
2490 : {
2491 2084 : if (sym->attr.function && !gfc_return_by_reference (sym))
2492 1854 : DECL_PURE_P (fndecl) = 1;
2493 : /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT)
2494 : parameters and don't use alternate returns (is this
2495 : allowed?). In that case, calls to them are meaningless, and
2496 : can be optimized away. See also in build_function_decl(). */
2497 2084 : TREE_SIDE_EFFECTS (fndecl) = 0;
2498 : }
2499 :
2500 : /* Mark non-returning functions. */
2501 19312 : if (sym->attr.noreturn || sym->attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2502 112 : TREE_THIS_VOLATILE(fndecl) = 1;
2503 :
2504 19312 : sym->backend_decl = fndecl;
2505 :
2506 19312 : if (DECL_CONTEXT (fndecl) == NULL_TREE)
2507 19312 : pushdecl_top_level (fndecl);
2508 :
2509 19312 : if (sym->formal_ns
2510 17201 : && sym->formal_ns->proc_name == sym)
2511 : {
2512 17201 : if (sym->formal_ns->omp_declare_simd)
2513 15 : gfc_trans_omp_declare_simd (sym->formal_ns);
2514 17201 : if (flag_openmp)
2515 : {
2516 : // We need DECL_ARGUMENTS to put attributes on, in case some arguments
2517 : // need adjustment
2518 1836 : create_function_arglist (sym->formal_ns->proc_name);
2519 1836 : gfc_trans_omp_declare_variant (sym->formal_ns, sym->ns);
2520 : }
2521 : }
2522 :
2523 19312 : return fndecl;
2524 : }
2525 :
2526 :
2527 : /* Create a declaration for a procedure. For external functions (in the C
2528 : sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is
2529 : a master function with alternate entry points. */
2530 :
2531 : static void
2532 98472 : build_function_decl (gfc_symbol * sym, bool global)
2533 : {
2534 98472 : tree fndecl, type;
2535 98472 : symbol_attribute attr;
2536 98472 : tree result_decl;
2537 98472 : gfc_formal_arglist *f;
2538 :
2539 196944 : bool module_procedure = sym->attr.module_procedure
2540 446 : && sym->ns
2541 446 : && sym->ns->proc_name
2542 98918 : && sym->ns->proc_name->attr.flavor == FL_MODULE;
2543 :
2544 98472 : gcc_assert (!sym->attr.external || module_procedure);
2545 :
2546 98472 : if (sym->backend_decl)
2547 12322 : return;
2548 :
2549 : /* Set the line and filename. sym->declared_at seems to point to the
2550 : last statement for subroutines, but it'll do for now. */
2551 86150 : input_location = gfc_get_location (&sym->declared_at);
2552 :
2553 : /* Allow only one nesting level. Allow public declarations. */
2554 86150 : gcc_assert (current_function_decl == NULL_TREE
2555 : || DECL_FILE_SCOPE_P (current_function_decl)
2556 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2557 : == FUNCTION_DECL)
2558 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2559 : == NAMESPACE_DECL));
2560 :
2561 86150 : type = gfc_get_function_type (sym);
2562 86150 : fndecl = build_decl (input_location,
2563 : FUNCTION_DECL, gfc_sym_identifier (sym), type);
2564 :
2565 86150 : attr = sym->attr;
2566 :
2567 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2568 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2569 : the opposite of declaring a function as static in C). */
2570 86150 : DECL_EXTERNAL (fndecl) = 0;
2571 :
2572 86150 : if (sym->attr.access == ACCESS_UNKNOWN && sym->module
2573 24597 : && (sym->ns->default_access == ACCESS_PRIVATE
2574 22616 : || (sym->ns->default_access == ACCESS_UNKNOWN
2575 22603 : && flag_module_private)))
2576 1981 : sym->attr.access = ACCESS_PRIVATE;
2577 :
2578 86150 : if (!current_function_decl
2579 63159 : && !sym->attr.entry_master && !sym->attr.is_main_program
2580 36339 : && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label
2581 2171 : || sym->attr.public_used))
2582 35528 : TREE_PUBLIC (fndecl) = 1;
2583 :
2584 86150 : if (sym->attr.referenced || sym->attr.entry_master)
2585 40032 : TREE_USED (fndecl) = 1;
2586 :
2587 86150 : add_attributes_to_decl (&fndecl, sym);
2588 :
2589 : /* Figure out the return type of the declared function, and build a
2590 : RESULT_DECL for it. If this is a subroutine with alternate
2591 : returns, build a RESULT_DECL for it. */
2592 86150 : result_decl = NULL_TREE;
2593 : /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */
2594 86150 : if (sym->attr.function)
2595 : {
2596 16068 : if (gfc_return_by_reference (sym))
2597 3148 : type = void_type_node;
2598 : else
2599 : {
2600 12920 : if (sym->result != sym)
2601 6316 : result_decl = gfc_sym_identifier (sym->result);
2602 :
2603 12920 : type = TREE_TYPE (TREE_TYPE (fndecl));
2604 : }
2605 : }
2606 : else
2607 : {
2608 : /* Look for alternate return placeholders. */
2609 70082 : int has_alternate_returns = 0;
2610 149081 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2611 : {
2612 79068 : if (f->sym == NULL)
2613 : {
2614 : has_alternate_returns = 1;
2615 : break;
2616 : }
2617 : }
2618 :
2619 70082 : if (has_alternate_returns)
2620 69 : type = integer_type_node;
2621 : else
2622 70013 : type = void_type_node;
2623 : }
2624 :
2625 86150 : result_decl = build_decl (input_location,
2626 : RESULT_DECL, result_decl, type);
2627 86150 : DECL_ARTIFICIAL (result_decl) = 1;
2628 86150 : DECL_IGNORED_P (result_decl) = 1;
2629 86150 : DECL_CONTEXT (result_decl) = fndecl;
2630 86150 : DECL_RESULT (fndecl) = result_decl;
2631 :
2632 : /* Don't call layout_decl for a RESULT_DECL.
2633 : layout_decl (result_decl, 0); */
2634 :
2635 : /* TREE_STATIC means the function body is defined here. */
2636 86150 : TREE_STATIC (fndecl) = 1;
2637 :
2638 : /* Set attributes for PURE functions. A call to a PURE function in the
2639 : Fortran 95 sense is both pure and without side effects in the C
2640 : sense. */
2641 86150 : if (sym->attr.pure || sym->attr.implicit_pure)
2642 : {
2643 : /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments
2644 : including an alternate return. In that case it can also be
2645 : marked as PURE. See also in gfc_get_extern_function_decl(). */
2646 18976 : if (attr.function && !gfc_return_by_reference (sym))
2647 4525 : DECL_PURE_P (fndecl) = 1;
2648 18976 : TREE_SIDE_EFFECTS (fndecl) = 0;
2649 : }
2650 :
2651 : /* Mark noinline functions. */
2652 86150 : if (attr.ext_attr & (1 << EXT_ATTR_NOINLINE))
2653 1 : DECL_UNINLINABLE (fndecl) = 1;
2654 :
2655 : /* Mark noreturn functions. */
2656 86150 : if (attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2657 8 : TREE_THIS_VOLATILE (fndecl) = 1;
2658 :
2659 : /* Mark weak functions. */
2660 86150 : if (attr.ext_attr & (1 << EXT_ATTR_WEAK))
2661 6 : declare_weak (fndecl);
2662 :
2663 : /* Layout the function declaration and put it in the binding level
2664 : of the current function. */
2665 :
2666 86150 : if (global)
2667 778 : pushdecl_top_level (fndecl);
2668 : else
2669 85372 : pushdecl (fndecl);
2670 :
2671 : /* Perform name mangling if this is a top level or module procedure. */
2672 86150 : if (current_function_decl == NULL_TREE)
2673 63159 : gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym));
2674 :
2675 86150 : sym->backend_decl = fndecl;
2676 : }
2677 :
2678 :
2679 : /* Create the DECL_ARGUMENTS for a procedure.
2680 : NOTE: The arguments added here must match the argument type created by
2681 : gfc_get_function_type (). */
2682 :
2683 : static void
2684 87986 : create_function_arglist (gfc_symbol * sym)
2685 : {
2686 87986 : tree fndecl;
2687 87986 : gfc_formal_arglist *f;
2688 87986 : tree typelist, hidden_typelist, optval_typelist;
2689 87986 : tree arglist, hidden_arglist, optval_arglist;
2690 87986 : tree type;
2691 87986 : tree parm;
2692 :
2693 87986 : fndecl = sym->backend_decl;
2694 :
2695 : /* Build formal argument list. Make sure that their TREE_CONTEXT is
2696 : the new FUNCTION_DECL node. */
2697 87986 : arglist = NULL_TREE;
2698 87986 : hidden_arglist = NULL_TREE;
2699 87986 : optval_arglist = NULL_TREE;
2700 87986 : typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl));
2701 :
2702 87986 : if (sym->attr.entry_master)
2703 : {
2704 667 : type = TREE_VALUE (typelist);
2705 667 : parm = build_decl (input_location,
2706 : PARM_DECL, get_identifier ("__entry"), type);
2707 :
2708 667 : DECL_CONTEXT (parm) = fndecl;
2709 667 : DECL_ARG_TYPE (parm) = type;
2710 667 : TREE_READONLY (parm) = 1;
2711 667 : gfc_finish_decl (parm);
2712 667 : DECL_ARTIFICIAL (parm) = 1;
2713 :
2714 667 : arglist = chainon (arglist, parm);
2715 667 : typelist = TREE_CHAIN (typelist);
2716 : }
2717 :
2718 87986 : if (gfc_return_by_reference (sym))
2719 : {
2720 3190 : tree type = TREE_VALUE (typelist), length = NULL;
2721 :
2722 3190 : if (sym->ts.type == BT_CHARACTER)
2723 : {
2724 : /* Length of character result. */
2725 1639 : tree len_type = TREE_VALUE (TREE_CHAIN (typelist));
2726 :
2727 1639 : length = build_decl (input_location,
2728 : PARM_DECL,
2729 : get_identifier (".__result"),
2730 : len_type);
2731 1639 : if (POINTER_TYPE_P (len_type))
2732 : {
2733 282 : sym->ts.u.cl->passed_length = length;
2734 282 : TREE_USED (length) = 1;
2735 : }
2736 1357 : else if (!sym->ts.u.cl->length)
2737 : {
2738 157 : sym->ts.u.cl->backend_decl = length;
2739 157 : TREE_USED (length) = 1;
2740 : }
2741 1639 : gcc_assert (TREE_CODE (length) == PARM_DECL);
2742 1639 : DECL_CONTEXT (length) = fndecl;
2743 1639 : DECL_ARG_TYPE (length) = len_type;
2744 1639 : TREE_READONLY (length) = 1;
2745 1639 : DECL_ARTIFICIAL (length) = 1;
2746 1639 : gfc_finish_decl (length);
2747 1639 : if (sym->ts.u.cl->backend_decl == NULL
2748 634 : || sym->ts.u.cl->backend_decl == length)
2749 : {
2750 1162 : gfc_symbol *arg;
2751 1162 : tree backend_decl;
2752 :
2753 1162 : if (sym->ts.u.cl->backend_decl == NULL)
2754 : {
2755 1005 : tree len = build_decl (input_location,
2756 : VAR_DECL,
2757 : get_identifier ("..__result"),
2758 : gfc_charlen_type_node);
2759 1005 : DECL_ARTIFICIAL (len) = 1;
2760 1005 : TREE_USED (len) = 1;
2761 1005 : sym->ts.u.cl->backend_decl = len;
2762 : }
2763 :
2764 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2765 1162 : arg = sym->result ? sym->result : sym;
2766 1162 : backend_decl = arg->backend_decl;
2767 : /* Temporary clear it, so that gfc_sym_type creates complete
2768 : type. */
2769 1162 : arg->backend_decl = NULL;
2770 1162 : type = gfc_sym_type (arg);
2771 1162 : arg->backend_decl = backend_decl;
2772 1162 : type = build_reference_type (type);
2773 : }
2774 : }
2775 :
2776 3190 : parm = build_decl (input_location,
2777 : PARM_DECL, get_identifier ("__result"), type);
2778 :
2779 3190 : DECL_CONTEXT (parm) = fndecl;
2780 3190 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
2781 3190 : TREE_READONLY (parm) = 1;
2782 3190 : DECL_ARTIFICIAL (parm) = 1;
2783 3190 : gfc_finish_decl (parm);
2784 :
2785 3190 : arglist = chainon (arglist, parm);
2786 3190 : typelist = TREE_CHAIN (typelist);
2787 :
2788 3190 : if (sym->ts.type == BT_CHARACTER)
2789 : {
2790 1639 : gfc_allocate_lang_decl (parm);
2791 1639 : arglist = chainon (arglist, length);
2792 1639 : typelist = TREE_CHAIN (typelist);
2793 : }
2794 : }
2795 :
2796 87986 : hidden_typelist = typelist;
2797 191837 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2798 103851 : if (f->sym != NULL) /* Ignore alternate returns. */
2799 103752 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2800 :
2801 : /* Advance hidden_typelist over optional+value argument presence flags. */
2802 87986 : optval_typelist = hidden_typelist;
2803 191837 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2804 103851 : if (f->sym != NULL
2805 103752 : && f->sym->attr.optional && f->sym->attr.value
2806 512 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2807 512 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2808 :
2809 191837 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2810 : {
2811 103851 : char name[GFC_MAX_SYMBOL_LEN + 2];
2812 :
2813 : /* Ignore alternate returns. */
2814 103851 : if (f->sym == NULL)
2815 99 : continue;
2816 :
2817 103752 : type = TREE_VALUE (typelist);
2818 :
2819 103752 : if (f->sym->ts.type == BT_CHARACTER
2820 9556 : && (!sym->attr.is_bind_c || sym->attr.entry_master))
2821 : {
2822 8234 : tree len_type = TREE_VALUE (hidden_typelist);
2823 8234 : tree length = NULL_TREE;
2824 8234 : if (!f->sym->ts.deferred)
2825 7366 : gcc_assert (len_type == gfc_charlen_type_node);
2826 : else
2827 868 : gcc_assert (POINTER_TYPE_P (len_type));
2828 :
2829 8234 : strcpy (&name[1], f->sym->name);
2830 8234 : name[0] = '_';
2831 8234 : length = build_decl (input_location,
2832 : PARM_DECL, get_identifier (name), len_type);
2833 :
2834 8234 : hidden_arglist = chainon (hidden_arglist, length);
2835 8234 : DECL_CONTEXT (length) = fndecl;
2836 8234 : DECL_ARTIFICIAL (length) = 1;
2837 8234 : DECL_ARG_TYPE (length) = len_type;
2838 8234 : TREE_READONLY (length) = 1;
2839 8234 : gfc_finish_decl (length);
2840 :
2841 : /* Marking the length DECL_HIDDEN_STRING_LENGTH will lead
2842 : to tail calls being disabled. Only do that if we
2843 : potentially have broken callers. */
2844 8234 : if (flag_tail_call_workaround
2845 8234 : && f->sym->ts.u.cl
2846 7714 : && f->sym->ts.u.cl->length
2847 2617 : && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT
2848 2352 : && (flag_tail_call_workaround == 2
2849 2352 : || f->sym->ns->implicit_interface_calls))
2850 84 : DECL_HIDDEN_STRING_LENGTH (length) = 1;
2851 :
2852 : /* Remember the passed value. */
2853 8234 : if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length)
2854 : {
2855 : /* This can happen if the same type is used for multiple
2856 : arguments. We need to copy cl as otherwise
2857 : cl->passed_length gets overwritten. */
2858 622 : f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl);
2859 : }
2860 8234 : f->sym->ts.u.cl->passed_length = length;
2861 :
2862 : /* Use the passed value for assumed length variables. */
2863 8234 : if (!f->sym->ts.u.cl->length)
2864 : {
2865 5617 : TREE_USED (length) = 1;
2866 5617 : gcc_assert (!f->sym->ts.u.cl->backend_decl);
2867 5617 : f->sym->ts.u.cl->backend_decl = length;
2868 : }
2869 :
2870 8234 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2871 :
2872 8234 : if (f->sym->ts.u.cl->backend_decl == NULL
2873 7936 : || f->sym->ts.u.cl->backend_decl == length)
2874 : {
2875 5915 : if (POINTER_TYPE_P (len_type))
2876 768 : f->sym->ts.u.cl->backend_decl
2877 768 : = build_fold_indirect_ref_loc (input_location, length);
2878 5147 : else if (f->sym->ts.u.cl->backend_decl == NULL)
2879 298 : gfc_create_string_length (f->sym);
2880 :
2881 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2882 5915 : if (f->sym->attr.flavor == FL_PROCEDURE)
2883 14 : type = build_pointer_type (gfc_get_function_type (f->sym));
2884 : else
2885 5901 : type = gfc_sym_type (f->sym);
2886 : }
2887 : }
2888 : /* For scalar intrinsic types or derived types, VALUE passes the value,
2889 : hence, the optional status cannot be transferred via a NULL pointer.
2890 : Thus, we will use a hidden argument in that case. */
2891 103752 : if (f->sym->attr.optional && f->sym->attr.value
2892 512 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2893 : {
2894 512 : tree tmp;
2895 512 : strcpy (&name[1], f->sym->name);
2896 512 : name[0] = '.';
2897 512 : tmp = build_decl (input_location,
2898 : PARM_DECL, get_identifier (name),
2899 : boolean_type_node);
2900 :
2901 512 : optval_arglist = chainon (optval_arglist, tmp);
2902 512 : DECL_CONTEXT (tmp) = fndecl;
2903 512 : DECL_ARTIFICIAL (tmp) = 1;
2904 512 : DECL_ARG_TYPE (tmp) = boolean_type_node;
2905 512 : TREE_READONLY (tmp) = 1;
2906 512 : gfc_finish_decl (tmp);
2907 :
2908 : /* The presence flag must be boolean. */
2909 512 : gcc_assert (TREE_VALUE (optval_typelist) == boolean_type_node);
2910 512 : optval_typelist = TREE_CHAIN (optval_typelist);
2911 : }
2912 :
2913 : /* For non-constant length array arguments, make sure they use
2914 : a different type node from TYPE_ARG_TYPES type. */
2915 103752 : if (f->sym->attr.dimension
2916 22902 : && type == TREE_VALUE (typelist)
2917 21590 : && TREE_CODE (type) == POINTER_TYPE
2918 9814 : && GFC_ARRAY_TYPE_P (type)
2919 7966 : && f->sym->as->type != AS_ASSUMED_SIZE
2920 109908 : && ! COMPLETE_TYPE_P (TREE_TYPE (type)))
2921 : {
2922 2618 : if (f->sym->attr.flavor == FL_PROCEDURE)
2923 0 : type = build_pointer_type (gfc_get_function_type (f->sym));
2924 : else
2925 2618 : type = gfc_sym_type (f->sym);
2926 : }
2927 :
2928 103752 : if (f->sym->attr.proc_pointer)
2929 146 : type = build_pointer_type (type);
2930 :
2931 103752 : if (f->sym->attr.volatile_)
2932 5 : type = build_qualified_type (type, TYPE_QUAL_VOLATILE);
2933 :
2934 : /* Build the argument declaration. For C descriptors, we use a
2935 : '_'-prefixed name for the parm_decl and inside the proc the
2936 : sym->name. */
2937 103752 : tree parm_name;
2938 103752 : if (sym->attr.is_bind_c && is_CFI_desc (f->sym, NULL))
2939 : {
2940 1819 : strcpy (&name[1], f->sym->name);
2941 1819 : name[0] = '_';
2942 1819 : parm_name = get_identifier (name);
2943 : }
2944 : else
2945 101933 : parm_name = gfc_sym_identifier (f->sym);
2946 103752 : parm = build_decl (input_location, PARM_DECL, parm_name, type);
2947 :
2948 103752 : if (f->sym->attr.volatile_)
2949 : {
2950 5 : TREE_THIS_VOLATILE (parm) = 1;
2951 5 : TREE_SIDE_EFFECTS (parm) = 1;
2952 : }
2953 :
2954 : /* Fill in arg stuff. */
2955 103752 : DECL_CONTEXT (parm) = fndecl;
2956 103752 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
2957 : /* All implementation args except for VALUE are read-only. */
2958 103752 : if (!f->sym->attr.value)
2959 94791 : TREE_READONLY (parm) = 1;
2960 103752 : if (POINTER_TYPE_P (type)
2961 95475 : && (!f->sym->attr.proc_pointer
2962 95329 : && f->sym->attr.flavor != FL_PROCEDURE))
2963 94547 : DECL_BY_REFERENCE (parm) = 1;
2964 103752 : if (f->sym->attr.optional)
2965 : {
2966 6095 : gfc_allocate_lang_decl (parm);
2967 6095 : GFC_DECL_OPTIONAL_ARGUMENT (parm) = 1;
2968 : }
2969 :
2970 103752 : gfc_finish_decl (parm);
2971 103752 : gfc_finish_decl_attrs (parm, &f->sym->attr);
2972 :
2973 103752 : f->sym->backend_decl = parm;
2974 :
2975 : /* Coarrays which are descriptorless or assumed-shape pass with
2976 : -fcoarray=lib the token and the offset as hidden arguments. */
2977 103752 : if (flag_coarray == GFC_FCOARRAY_LIB
2978 6933 : && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension
2979 1532 : && !f->sym->attr.allocatable)
2980 5423 : || (f->sym->ts.type == BT_CLASS
2981 27 : && CLASS_DATA (f->sym)->attr.codimension
2982 22 : && !CLASS_DATA (f->sym)->attr.allocatable)))
2983 : {
2984 1528 : tree caf_type;
2985 1528 : tree token;
2986 1528 : tree offset;
2987 :
2988 1528 : gcc_assert (f->sym->backend_decl != NULL_TREE
2989 : && !sym->attr.is_bind_c);
2990 1528 : caf_type = f->sym->ts.type == BT_CLASS
2991 1528 : ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl)
2992 1510 : : TREE_TYPE (f->sym->backend_decl);
2993 :
2994 1528 : token = build_decl (input_location, PARM_DECL,
2995 : create_tmp_var_name ("caf_token"),
2996 : build_qualified_type (pvoid_type_node,
2997 : TYPE_QUAL_RESTRICT));
2998 1528 : if ((f->sym->ts.type != BT_CLASS
2999 1510 : && f->sym->as->type != AS_DEFERRED)
3000 18 : || (f->sym->ts.type == BT_CLASS
3001 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3002 : {
3003 1528 : gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL
3004 : || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE);
3005 1528 : if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL)
3006 1523 : gfc_allocate_lang_decl (f->sym->backend_decl);
3007 1528 : GFC_DECL_TOKEN (f->sym->backend_decl) = token;
3008 : }
3009 : else
3010 : {
3011 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE);
3012 0 : GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token;
3013 : }
3014 :
3015 1528 : DECL_CONTEXT (token) = fndecl;
3016 1528 : DECL_ARTIFICIAL (token) = 1;
3017 1528 : DECL_ARG_TYPE (token) = TREE_VALUE (typelist);
3018 1528 : TREE_READONLY (token) = 1;
3019 1528 : hidden_arglist = chainon (hidden_arglist, token);
3020 1528 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3021 1528 : gfc_finish_decl (token);
3022 :
3023 1528 : offset = build_decl (input_location, PARM_DECL,
3024 : create_tmp_var_name ("caf_offset"),
3025 : gfc_array_index_type);
3026 :
3027 1528 : if ((f->sym->ts.type != BT_CLASS
3028 1510 : && f->sym->as->type != AS_DEFERRED)
3029 18 : || (f->sym->ts.type == BT_CLASS
3030 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3031 : {
3032 1528 : gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl)
3033 : == NULL_TREE);
3034 1528 : GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset;
3035 : }
3036 : else
3037 : {
3038 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE);
3039 0 : GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset;
3040 : }
3041 1528 : DECL_CONTEXT (offset) = fndecl;
3042 1528 : DECL_ARTIFICIAL (offset) = 1;
3043 1528 : DECL_ARG_TYPE (offset) = TREE_VALUE (typelist);
3044 1528 : TREE_READONLY (offset) = 1;
3045 1528 : hidden_arglist = chainon (hidden_arglist, offset);
3046 1528 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3047 1528 : gfc_finish_decl (offset);
3048 : }
3049 :
3050 103752 : arglist = chainon (arglist, parm);
3051 103752 : typelist = TREE_CHAIN (typelist);
3052 : }
3053 :
3054 : /* Add hidden present status for optional+value arguments. */
3055 87986 : arglist = chainon (arglist, optval_arglist);
3056 :
3057 : /* Add the hidden string length parameters, unless the procedure
3058 : is bind(C). */
3059 87986 : if (!sym->attr.is_bind_c)
3060 85820 : arglist = chainon (arglist, hidden_arglist);
3061 :
3062 175972 : gcc_assert (hidden_typelist == NULL_TREE
3063 : || TREE_VALUE (hidden_typelist) == void_type_node);
3064 87986 : DECL_ARGUMENTS (fndecl) = arglist;
3065 87986 : }
3066 :
3067 : /* Do the setup necessary before generating the body of a function. */
3068 :
3069 : static void
3070 86150 : trans_function_start (gfc_symbol * sym)
3071 : {
3072 86150 : tree fndecl;
3073 :
3074 86150 : fndecl = sym->backend_decl;
3075 :
3076 : /* Let GCC know the current scope is this function. */
3077 86150 : current_function_decl = fndecl;
3078 :
3079 : /* Let the world know what we're about to do. */
3080 86150 : announce_function (fndecl);
3081 :
3082 86150 : if (DECL_FILE_SCOPE_P (fndecl))
3083 : {
3084 : /* Create RTL for function declaration. */
3085 37502 : rest_of_decl_compilation (fndecl, 1, 0);
3086 : }
3087 :
3088 : /* Create RTL for function definition. */
3089 86150 : make_decl_rtl (fndecl);
3090 :
3091 86150 : allocate_struct_function (fndecl, false);
3092 :
3093 : /* function.cc requires a push at the start of the function. */
3094 86150 : pushlevel ();
3095 86150 : }
3096 :
3097 : /* Create thunks for alternate entry points. */
3098 :
3099 : static void
3100 667 : build_entry_thunks (gfc_namespace * ns, bool global)
3101 : {
3102 667 : gfc_formal_arglist *formal;
3103 667 : gfc_formal_arglist *thunk_formal;
3104 667 : gfc_entry_list *el;
3105 667 : gfc_symbol *thunk_sym;
3106 667 : stmtblock_t body;
3107 667 : tree thunk_fndecl;
3108 667 : tree tmp;
3109 667 : location_t old_loc;
3110 :
3111 : /* This should always be a toplevel function. */
3112 667 : gcc_assert (current_function_decl == NULL_TREE);
3113 :
3114 667 : old_loc = input_location;
3115 2079 : for (el = ns->entries; el; el = el->next)
3116 : {
3117 1412 : vec<tree, va_gc> *args = NULL;
3118 1412 : vec<tree, va_gc> *string_args = NULL;
3119 :
3120 1412 : thunk_sym = el->sym;
3121 :
3122 1412 : build_function_decl (thunk_sym, global);
3123 1412 : create_function_arglist (thunk_sym);
3124 :
3125 1412 : trans_function_start (thunk_sym);
3126 :
3127 1412 : thunk_fndecl = thunk_sym->backend_decl;
3128 :
3129 1412 : gfc_init_block (&body);
3130 :
3131 : /* Pass extra parameter identifying this entry point. */
3132 1412 : tmp = build_int_cst (gfc_array_index_type, el->id);
3133 1412 : vec_safe_push (args, tmp);
3134 :
3135 : /* When the master returns by reference, pass the result reference
3136 : and (for CHARACTER) the string length to the master call. If the
3137 : thunk itself also returns by reference these are forwarded from
3138 : its own argument list; otherwise (bind(c) CHARACTER entry) we
3139 : create local temporaries and load the value after the call. */
3140 1412 : tree result_ref = NULL_TREE;
3141 1412 : if (thunk_sym->attr.function
3142 1412 : && gfc_return_by_reference (ns->proc_name))
3143 : {
3144 300 : if (gfc_return_by_reference (thunk_sym))
3145 : {
3146 276 : tree ref = DECL_ARGUMENTS (current_function_decl);
3147 276 : vec_safe_push (args, ref);
3148 276 : if (ns->proc_name->ts.type == BT_CHARACTER)
3149 160 : vec_safe_push (args, DECL_CHAIN (ref));
3150 : }
3151 : else
3152 : {
3153 : /* The thunk is bind(c) and returns CHARACTER by value, but
3154 : the master returns by reference. Create a local buffer
3155 : and length to pass to the master call. */
3156 24 : tree chartype = gfc_get_char_type (thunk_sym->ts.kind);
3157 24 : tree len;
3158 :
3159 24 : if (thunk_sym->ts.u.cl && thunk_sym->ts.u.cl->length)
3160 : {
3161 24 : gfc_se se;
3162 24 : gfc_init_se (&se, NULL);
3163 24 : gfc_conv_expr (&se, thunk_sym->ts.u.cl->length);
3164 24 : gfc_add_block_to_block (&body, &se.pre);
3165 24 : len = se.expr;
3166 24 : gfc_add_block_to_block (&body, &se.post);
3167 24 : }
3168 : else
3169 0 : len = build_int_cst (gfc_charlen_type_node, 1);
3170 :
3171 24 : result_ref = build_decl (input_location, VAR_DECL,
3172 : get_identifier ("__entry_result"),
3173 : build_array_type (chartype,
3174 : build_range_type (gfc_array_index_type,
3175 : gfc_index_one_node,
3176 : fold_convert (gfc_array_index_type,
3177 : len))));
3178 24 : DECL_ARTIFICIAL (result_ref) = 1;
3179 24 : TREE_USED (result_ref) = 1;
3180 24 : DECL_CONTEXT (result_ref) = current_function_decl;
3181 24 : layout_decl (result_ref, 0);
3182 24 : pushdecl (result_ref);
3183 :
3184 48 : vec_safe_push (args,
3185 24 : build_fold_addr_expr_loc (input_location,
3186 : result_ref));
3187 24 : vec_safe_push (args, len);
3188 : }
3189 : }
3190 :
3191 2977 : for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal;
3192 1565 : formal = formal->next)
3193 : {
3194 : /* Ignore alternate returns. */
3195 1565 : if (formal->sym == NULL)
3196 36 : continue;
3197 :
3198 : /* We don't have a clever way of identifying arguments, so resort to
3199 : a brute-force search. */
3200 1529 : for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym);
3201 2697 : thunk_formal;
3202 1168 : thunk_formal = thunk_formal->next)
3203 : {
3204 2257 : if (thunk_formal->sym == formal->sym)
3205 : break;
3206 : }
3207 :
3208 1529 : if (thunk_formal)
3209 : {
3210 : /* Pass the argument. */
3211 1089 : DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1;
3212 1089 : vec_safe_push (args, thunk_formal->sym->backend_decl);
3213 1089 : if (formal->sym->ts.type == BT_CHARACTER)
3214 : {
3215 94 : tmp = thunk_formal->sym->ts.u.cl->backend_decl;
3216 94 : vec_safe_push (string_args, tmp);
3217 : }
3218 : }
3219 : else
3220 : {
3221 : /* Pass NULL for a missing argument. */
3222 440 : vec_safe_push (args, null_pointer_node);
3223 440 : if (formal->sym->ts.type == BT_CHARACTER)
3224 : {
3225 38 : tmp = build_int_cst (gfc_charlen_type_node, 0);
3226 38 : vec_safe_push (string_args, tmp);
3227 : }
3228 : }
3229 : }
3230 :
3231 : /* Call the master function. */
3232 1412 : vec_safe_splice (args, string_args);
3233 1412 : tmp = ns->proc_name->backend_decl;
3234 1412 : tmp = build_call_expr_loc_vec (input_location, tmp, args);
3235 1412 : if (result_ref != NULL_TREE)
3236 : {
3237 : /* The master returns by reference (void) but the bind(c) thunk
3238 : returns CHARACTER by value. Execute the master call, then
3239 : load the first character from the local buffer. */
3240 24 : gfc_add_expr_to_block (&body, tmp);
3241 24 : tmp = build4_loc (input_location, ARRAY_REF,
3242 24 : TREE_TYPE (TREE_TYPE (result_ref)),
3243 : result_ref, gfc_index_one_node,
3244 : NULL_TREE, NULL_TREE);
3245 24 : tmp = fold_convert (TREE_TYPE (DECL_RESULT (current_function_decl)),
3246 : tmp);
3247 24 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3248 24 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3249 24 : DECL_RESULT (current_function_decl), tmp);
3250 24 : tmp = build1_v (RETURN_EXPR, tmp);
3251 : }
3252 1388 : else if (ns->proc_name->attr.mixed_entry_master)
3253 : {
3254 214 : tree union_decl, field;
3255 214 : tree master_type = TREE_TYPE (ns->proc_name->backend_decl);
3256 :
3257 214 : union_decl = build_decl (input_location,
3258 : VAR_DECL, get_identifier ("__result"),
3259 214 : TREE_TYPE (master_type));
3260 214 : DECL_ARTIFICIAL (union_decl) = 1;
3261 214 : DECL_EXTERNAL (union_decl) = 0;
3262 214 : TREE_PUBLIC (union_decl) = 0;
3263 214 : TREE_USED (union_decl) = 1;
3264 214 : layout_decl (union_decl, 0);
3265 214 : pushdecl (union_decl);
3266 :
3267 214 : DECL_CONTEXT (union_decl) = current_function_decl;
3268 214 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3269 214 : TREE_TYPE (union_decl), union_decl, tmp);
3270 214 : gfc_add_expr_to_block (&body, tmp);
3271 :
3272 214 : for (field = TYPE_FIELDS (TREE_TYPE (union_decl));
3273 348 : field; field = DECL_CHAIN (field))
3274 348 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3275 348 : thunk_sym->result->name) == 0)
3276 : break;
3277 0 : gcc_assert (field != NULL_TREE);
3278 214 : tmp = fold_build3_loc (input_location, COMPONENT_REF,
3279 214 : TREE_TYPE (field), union_decl, field,
3280 : NULL_TREE);
3281 214 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3282 214 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3283 214 : DECL_RESULT (current_function_decl), tmp);
3284 214 : tmp = build1_v (RETURN_EXPR, tmp);
3285 : }
3286 1174 : else if (TREE_TYPE (DECL_RESULT (current_function_decl))
3287 1174 : != void_type_node)
3288 : {
3289 705 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3290 705 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3291 705 : DECL_RESULT (current_function_decl), tmp);
3292 705 : tmp = build1_v (RETURN_EXPR, tmp);
3293 : }
3294 1412 : gfc_add_expr_to_block (&body, tmp);
3295 :
3296 : /* Finish off this function and send it for code generation. */
3297 1412 : DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body);
3298 1412 : tmp = getdecls ();
3299 1412 : poplevel (1, 1);
3300 1412 : BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl;
3301 2824 : DECL_SAVED_TREE (thunk_fndecl)
3302 2824 : = fold_build3_loc (DECL_SOURCE_LOCATION (thunk_fndecl), BIND_EXPR,
3303 1412 : void_type_node, tmp, DECL_SAVED_TREE (thunk_fndecl),
3304 1412 : DECL_INITIAL (thunk_fndecl));
3305 :
3306 : /* Output the GENERIC tree. */
3307 1412 : dump_function (TDI_original, thunk_fndecl);
3308 :
3309 : /* Store the end of the function, so that we get good line number
3310 : info for the epilogue. */
3311 1412 : cfun->function_end_locus = input_location;
3312 :
3313 : /* We're leaving the context of this function, so zap cfun.
3314 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
3315 : tree_rest_of_compilation. */
3316 1412 : set_cfun (NULL);
3317 :
3318 1412 : current_function_decl = NULL_TREE;
3319 :
3320 1412 : cgraph_node::finalize_function (thunk_fndecl, true);
3321 :
3322 : /* We share the symbols in the formal argument list with other entry
3323 : points and the master function. Clear them so that they are
3324 : recreated for each function. */
3325 2546 : for (formal = gfc_sym_get_dummy_args (thunk_sym); formal;
3326 1134 : formal = formal->next)
3327 1134 : if (formal->sym != NULL) /* Ignore alternate returns. */
3328 : {
3329 1089 : formal->sym->backend_decl = NULL_TREE;
3330 1089 : if (formal->sym->ts.type == BT_CHARACTER)
3331 94 : formal->sym->ts.u.cl->backend_decl = NULL_TREE;
3332 : }
3333 :
3334 1412 : if (thunk_sym->attr.function)
3335 : {
3336 1194 : if (thunk_sym->ts.type == BT_CHARACTER)
3337 186 : thunk_sym->ts.u.cl->backend_decl = NULL_TREE;
3338 1194 : if (thunk_sym->result->ts.type == BT_CHARACTER)
3339 186 : thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE;
3340 : }
3341 : }
3342 :
3343 667 : input_location = old_loc;
3344 667 : }
3345 :
3346 :
3347 : /* Create a decl for a function, and create any thunks for alternate entry
3348 : points. If global is true, generate the function in the global binding
3349 : level, otherwise in the current binding level (which can be global). */
3350 :
3351 : void
3352 84738 : gfc_create_function_decl (gfc_namespace * ns, bool global)
3353 : {
3354 : /* Create a declaration for the master function. */
3355 84738 : build_function_decl (ns->proc_name, global);
3356 :
3357 : /* Compile the entry thunks. */
3358 84738 : if (ns->entries)
3359 667 : build_entry_thunks (ns, global);
3360 :
3361 : /* Now create the read argument list. */
3362 84738 : create_function_arglist (ns->proc_name);
3363 :
3364 84738 : if (ns->omp_declare_simd)
3365 94 : gfc_trans_omp_declare_simd (ns);
3366 :
3367 : /* Handle 'declare variant' directives. The applicable directives might
3368 : be declared in a parent namespace, so this needs to be called even if
3369 : there are no local directives. */
3370 84738 : if (flag_openmp)
3371 8658 : gfc_trans_omp_declare_variant (ns, NULL);
3372 84738 : }
3373 :
3374 : /* Return the decl used to hold the function return value. If
3375 : parent_flag is set, the context is the parent_scope. */
3376 :
3377 : tree
3378 12929 : gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag)
3379 : {
3380 12929 : tree decl;
3381 12929 : tree length;
3382 12929 : tree this_fake_result_decl;
3383 12929 : tree this_function_decl;
3384 :
3385 12929 : char name[GFC_MAX_SYMBOL_LEN + 10];
3386 :
3387 12929 : if (parent_flag)
3388 : {
3389 167 : this_fake_result_decl = parent_fake_result_decl;
3390 167 : this_function_decl = DECL_CONTEXT (current_function_decl);
3391 : }
3392 : else
3393 : {
3394 12762 : this_fake_result_decl = current_fake_result_decl;
3395 12762 : this_function_decl = current_function_decl;
3396 : }
3397 :
3398 12929 : if (sym
3399 12879 : && sym->ns->proc_name->backend_decl == this_function_decl
3400 4863 : && sym->ns->proc_name->attr.entry_master
3401 2392 : && sym != sym->ns->proc_name)
3402 : {
3403 1480 : tree t = NULL, var;
3404 1480 : if (this_fake_result_decl != NULL)
3405 1452 : for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t))
3406 1071 : if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0)
3407 : break;
3408 958 : if (t)
3409 577 : return TREE_VALUE (t);
3410 903 : decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag);
3411 :
3412 903 : if (parent_flag)
3413 14 : this_fake_result_decl = parent_fake_result_decl;
3414 : else
3415 889 : this_fake_result_decl = current_fake_result_decl;
3416 :
3417 903 : if (decl && sym->ns->proc_name->attr.mixed_entry_master)
3418 : {
3419 214 : tree field;
3420 :
3421 214 : for (field = TYPE_FIELDS (TREE_TYPE (decl));
3422 348 : field; field = DECL_CHAIN (field))
3423 348 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3424 : sym->name) == 0)
3425 : break;
3426 :
3427 214 : gcc_assert (field != NULL_TREE);
3428 214 : decl = fold_build3_loc (input_location, COMPONENT_REF,
3429 214 : TREE_TYPE (field), decl, field, NULL_TREE);
3430 : }
3431 :
3432 903 : var = create_tmp_var_raw (TREE_TYPE (decl), sym->name);
3433 903 : if (parent_flag)
3434 14 : gfc_add_decl_to_parent_function (var);
3435 : else
3436 889 : gfc_add_decl_to_function (var);
3437 :
3438 903 : SET_DECL_VALUE_EXPR (var, decl);
3439 903 : DECL_HAS_VALUE_EXPR_P (var) = 1;
3440 903 : GFC_DECL_RESULT (var) = 1;
3441 :
3442 903 : TREE_CHAIN (this_fake_result_decl)
3443 903 : = tree_cons (get_identifier (sym->name), var,
3444 903 : TREE_CHAIN (this_fake_result_decl));
3445 903 : return var;
3446 : }
3447 :
3448 11449 : if (this_fake_result_decl != NULL_TREE)
3449 4002 : return TREE_VALUE (this_fake_result_decl);
3450 :
3451 : /* Only when gfc_get_fake_result_decl is called by gfc_trans_return,
3452 : sym is NULL. */
3453 7447 : if (!sym)
3454 : return NULL_TREE;
3455 :
3456 7447 : if (sym->ts.type == BT_CHARACTER)
3457 : {
3458 845 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
3459 0 : length = gfc_create_string_length (sym);
3460 : else
3461 : length = sym->ts.u.cl->backend_decl;
3462 845 : if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE)
3463 514 : gfc_add_decl_to_function (length);
3464 : }
3465 :
3466 7447 : if (gfc_return_by_reference (sym))
3467 : {
3468 1606 : decl = DECL_ARGUMENTS (this_function_decl);
3469 :
3470 1606 : if (sym->ns->proc_name->backend_decl == this_function_decl
3471 405 : && sym->ns->proc_name->attr.entry_master)
3472 85 : decl = DECL_CHAIN (decl);
3473 :
3474 1606 : TREE_USED (decl) = 1;
3475 1606 : if (sym->as)
3476 807 : decl = gfc_build_dummy_array_decl (sym, decl);
3477 : }
3478 : else
3479 : {
3480 11682 : sprintf (name, "__result_%.20s",
3481 5841 : IDENTIFIER_POINTER (DECL_NAME (this_function_decl)));
3482 :
3483 5841 : if (!sym->attr.mixed_entry_master && sym->attr.function)
3484 5700 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3485 : VAR_DECL, get_identifier (name),
3486 : gfc_sym_type (sym));
3487 : else
3488 141 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3489 : VAR_DECL, get_identifier (name),
3490 141 : TREE_TYPE (TREE_TYPE (this_function_decl)));
3491 5841 : DECL_ARTIFICIAL (decl) = 1;
3492 5841 : DECL_EXTERNAL (decl) = 0;
3493 5841 : TREE_PUBLIC (decl) = 0;
3494 5841 : TREE_USED (decl) = 1;
3495 5841 : GFC_DECL_RESULT (decl) = 1;
3496 5841 : TREE_ADDRESSABLE (decl) = 1;
3497 :
3498 5841 : layout_decl (decl, 0);
3499 5841 : gfc_finish_decl_attrs (decl, &sym->attr);
3500 :
3501 5841 : if (parent_flag)
3502 27 : gfc_add_decl_to_parent_function (decl);
3503 : else
3504 5814 : gfc_add_decl_to_function (decl);
3505 : }
3506 :
3507 7447 : if (parent_flag)
3508 39 : parent_fake_result_decl = build_tree_list (NULL, decl);
3509 : else
3510 7408 : current_fake_result_decl = build_tree_list (NULL, decl);
3511 :
3512 7447 : if (sym->attr.assign)
3513 1 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl);
3514 :
3515 : return decl;
3516 : }
3517 :
3518 :
3519 : /* Builds a function decl. The remaining parameters are the types of the
3520 : function arguments. Negative nargs indicates a varargs function. */
3521 :
3522 : static tree
3523 4718356 : build_library_function_decl_1 (tree name, const char *spec,
3524 : tree rettype, int nargs, va_list p)
3525 : {
3526 4718356 : vec<tree, va_gc> *arglist;
3527 4718356 : tree fntype;
3528 4718356 : tree fndecl;
3529 4718356 : int n;
3530 :
3531 : /* Library functions must be declared with global scope. */
3532 4718356 : gcc_assert (current_function_decl == NULL_TREE);
3533 :
3534 : /* Create a list of the argument types. */
3535 4718356 : vec_alloc (arglist, abs (nargs));
3536 18770458 : for (n = abs (nargs); n > 0; n--)
3537 : {
3538 14052102 : tree argtype = va_arg (p, tree);
3539 14052102 : arglist->quick_push (argtype);
3540 : }
3541 :
3542 : /* Build the function type and decl. */
3543 4718356 : if (nargs >= 0)
3544 13523452 : fntype = build_function_type_vec (rettype, arglist);
3545 : else
3546 565938 : fntype = build_varargs_function_type_vec (rettype, arglist);
3547 4718356 : if (spec)
3548 : {
3549 2753541 : tree attr_args = build_tree_list (NULL_TREE,
3550 2753541 : build_string (strlen (spec), spec));
3551 2753541 : tree attrs = tree_cons (get_identifier ("fn spec"),
3552 2753541 : attr_args, TYPE_ATTRIBUTES (fntype));
3553 2753541 : fntype = build_type_attribute_variant (fntype, attrs);
3554 : }
3555 4718356 : fndecl = build_decl (input_location,
3556 : FUNCTION_DECL, name, fntype);
3557 :
3558 : /* Mark this decl as external. */
3559 4718356 : DECL_EXTERNAL (fndecl) = 1;
3560 4718356 : TREE_PUBLIC (fndecl) = 1;
3561 :
3562 4718356 : pushdecl (fndecl);
3563 :
3564 4718356 : rest_of_decl_compilation (fndecl, 1, 0);
3565 :
3566 4718356 : return fndecl;
3567 : }
3568 :
3569 : /* Builds a function decl. The remaining parameters are the types of the
3570 : function arguments. Negative nargs indicates a varargs function. */
3571 :
3572 : tree
3573 1964815 : gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...)
3574 : {
3575 1964815 : tree ret;
3576 1964815 : va_list args;
3577 1964815 : va_start (args, nargs);
3578 1964815 : ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args);
3579 1964815 : va_end (args);
3580 1964815 : return ret;
3581 : }
3582 :
3583 : /* Builds a function decl. The remaining parameters are the types of the
3584 : function arguments. Negative nargs indicates a varargs function.
3585 : The SPEC parameter specifies the function argument and return type
3586 : specification according to the fnspec function type attribute. */
3587 :
3588 : tree
3589 2753541 : gfc_build_library_function_decl_with_spec (tree name, const char *spec,
3590 : tree rettype, int nargs, ...)
3591 : {
3592 2753541 : tree ret;
3593 2753541 : va_list args;
3594 2753541 : va_start (args, nargs);
3595 2753541 : if (flag_checking)
3596 : {
3597 2753541 : attr_fnspec fnspec (spec, strlen (spec));
3598 2753541 : fnspec.verify ();
3599 : }
3600 2753541 : ret = build_library_function_decl_1 (name, spec, rettype, nargs, args);
3601 2753541 : va_end (args);
3602 2753541 : return ret;
3603 : }
3604 :
3605 : static void
3606 31441 : gfc_build_intrinsic_function_decls (void)
3607 : {
3608 31441 : tree gfc_int4_type_node = gfc_get_int_type (4);
3609 31441 : tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node);
3610 31441 : tree gfc_int8_type_node = gfc_get_int_type (8);
3611 31441 : tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node);
3612 31441 : tree gfc_int16_type_node = gfc_get_int_type (16);
3613 31441 : tree gfc_logical4_type_node = gfc_get_logical_type (4);
3614 31441 : tree pchar1_type_node = gfc_get_pchar_type (1);
3615 31441 : tree pchar4_type_node = gfc_get_pchar_type (4);
3616 :
3617 : /* String functions. */
3618 31441 : gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec (
3619 : get_identifier (PREFIX("compare_string")), ". . R . R ",
3620 : integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node,
3621 : gfc_charlen_type_node, pchar1_type_node);
3622 31441 : DECL_PURE_P (gfor_fndecl_compare_string) = 1;
3623 31441 : TREE_NOTHROW (gfor_fndecl_compare_string) = 1;
3624 :
3625 31441 : gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec (
3626 : get_identifier (PREFIX("concat_string")), ". . W . R . R ",
3627 : void_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3628 : gfc_charlen_type_node, pchar1_type_node,
3629 : gfc_charlen_type_node, pchar1_type_node);
3630 31441 : TREE_NOTHROW (gfor_fndecl_concat_string) = 1;
3631 :
3632 31441 : gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec (
3633 : get_identifier (PREFIX("string_len_trim")), ". . R ",
3634 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node);
3635 31441 : DECL_PURE_P (gfor_fndecl_string_len_trim) = 1;
3636 31441 : TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1;
3637 :
3638 31441 : gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec (
3639 : get_identifier (PREFIX("string_index")), ". . R . R . ",
3640 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3641 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3642 31441 : DECL_PURE_P (gfor_fndecl_string_index) = 1;
3643 31441 : TREE_NOTHROW (gfor_fndecl_string_index) = 1;
3644 :
3645 31441 : gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec (
3646 : get_identifier (PREFIX("string_scan")), ". . R . R . ",
3647 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3648 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3649 31441 : DECL_PURE_P (gfor_fndecl_string_scan) = 1;
3650 31441 : TREE_NOTHROW (gfor_fndecl_string_scan) = 1;
3651 :
3652 31441 : gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec (
3653 : get_identifier (PREFIX("string_verify")), ". . R . R . ",
3654 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3655 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3656 31441 : DECL_PURE_P (gfor_fndecl_string_verify) = 1;
3657 31441 : TREE_NOTHROW (gfor_fndecl_string_verify) = 1;
3658 :
3659 31441 : gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec (
3660 : get_identifier (PREFIX("string_trim")), ". W w . R ",
3661 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3662 : build_pointer_type (pchar1_type_node), gfc_charlen_type_node,
3663 : pchar1_type_node);
3664 :
3665 31441 : gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec (
3666 : get_identifier (PREFIX("string_minmax")), ". W w . R ",
3667 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3668 : build_pointer_type (pchar1_type_node), integer_type_node,
3669 : integer_type_node);
3670 :
3671 31441 : gfor_fndecl_string_split = gfc_build_library_function_decl_with_spec (
3672 : get_identifier (PREFIX ("string_split")), ". . R . R . . ",
3673 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3674 : gfc_charlen_type_node, pchar1_type_node, gfc_charlen_type_node,
3675 : gfc_logical4_type_node);
3676 :
3677 31441 : {
3678 31441 : tree copy_helper_ptr_type;
3679 31441 : tree copy_helper_fn_type;
3680 :
3681 31441 : copy_helper_fn_type = build_function_type_list (void_type_node,
3682 : pvoid_type_node,
3683 : pvoid_type_node,
3684 : NULL_TREE);
3685 31441 : copy_helper_ptr_type = build_pointer_type (copy_helper_fn_type);
3686 :
3687 31441 : gfor_fndecl_cfi_deep_copy_array
3688 31441 : = gfc_build_library_function_decl_with_spec (
3689 : get_identifier (PREFIX ("cfi_deep_copy_array")), ". R R . ",
3690 : void_type_node, 3, pvoid_type_node, pvoid_type_node,
3691 : copy_helper_ptr_type);
3692 : }
3693 :
3694 31441 : gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec (
3695 : get_identifier (PREFIX("adjustl")), ". W . R ",
3696 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3697 : pchar1_type_node);
3698 31441 : TREE_NOTHROW (gfor_fndecl_adjustl) = 1;
3699 :
3700 31441 : gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec (
3701 : get_identifier (PREFIX("adjustr")), ". W . R ",
3702 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3703 : pchar1_type_node);
3704 31441 : TREE_NOTHROW (gfor_fndecl_adjustr) = 1;
3705 :
3706 31441 : gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec (
3707 : get_identifier (PREFIX("select_string")), ". R . R . ",
3708 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3709 : pchar1_type_node, gfc_charlen_type_node);
3710 31441 : DECL_PURE_P (gfor_fndecl_select_string) = 1;
3711 31441 : TREE_NOTHROW (gfor_fndecl_select_string) = 1;
3712 :
3713 31441 : gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec (
3714 : get_identifier (PREFIX("compare_string_char4")), ". . R . R ",
3715 : integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node,
3716 : gfc_charlen_type_node, pchar4_type_node);
3717 31441 : DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1;
3718 31441 : TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1;
3719 :
3720 31441 : gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec (
3721 : get_identifier (PREFIX("concat_string_char4")), ". . W . R . R ",
3722 : void_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3723 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3724 : pchar4_type_node);
3725 31441 : TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1;
3726 :
3727 31441 : gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec (
3728 : get_identifier (PREFIX("string_len_trim_char4")), ". . R ",
3729 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node);
3730 31441 : DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1;
3731 31441 : TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1;
3732 :
3733 31441 : gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec (
3734 : get_identifier (PREFIX("string_index_char4")), ". . R . R . ",
3735 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3736 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3737 31441 : DECL_PURE_P (gfor_fndecl_string_index_char4) = 1;
3738 31441 : TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1;
3739 :
3740 31441 : gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec (
3741 : get_identifier (PREFIX("string_scan_char4")), ". . R . R . ",
3742 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3743 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3744 31441 : DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1;
3745 31441 : TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1;
3746 :
3747 31441 : gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec (
3748 : get_identifier (PREFIX("string_verify_char4")), ". . R . R . ",
3749 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3750 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3751 31441 : DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1;
3752 31441 : TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1;
3753 :
3754 31441 : gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec (
3755 : get_identifier (PREFIX("string_trim_char4")), ". W w . R ",
3756 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3757 : build_pointer_type (pchar4_type_node), gfc_charlen_type_node,
3758 : pchar4_type_node);
3759 :
3760 31441 : gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec (
3761 : get_identifier (PREFIX("string_minmax_char4")), ". W w . R ",
3762 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3763 : build_pointer_type (pchar4_type_node), integer_type_node,
3764 : integer_type_node);
3765 :
3766 31441 : gfor_fndecl_string_split_char4 = gfc_build_library_function_decl_with_spec (
3767 : get_identifier (PREFIX ("string_split_char4")), ". . R . R . . ",
3768 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3769 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3770 : gfc_logical4_type_node);
3771 :
3772 31441 : gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec (
3773 : get_identifier (PREFIX("adjustl_char4")), ". W . R ",
3774 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3775 : pchar4_type_node);
3776 31441 : TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1;
3777 :
3778 31441 : gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec (
3779 : get_identifier (PREFIX("adjustr_char4")), ". W . R ",
3780 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3781 : pchar4_type_node);
3782 31441 : TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1;
3783 :
3784 31441 : gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec (
3785 : get_identifier (PREFIX("select_string_char4")), ". R . R . ",
3786 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3787 : pvoid_type_node, gfc_charlen_type_node);
3788 31441 : DECL_PURE_P (gfor_fndecl_select_string_char4) = 1;
3789 31441 : TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1;
3790 :
3791 :
3792 : /* Conversion between character kinds. */
3793 :
3794 31441 : gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec (
3795 : get_identifier (PREFIX("convert_char1_to_char4")), ". w . R ",
3796 : void_type_node, 3, build_pointer_type (pchar4_type_node),
3797 : gfc_charlen_type_node, pchar1_type_node);
3798 :
3799 31441 : gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec (
3800 : get_identifier (PREFIX("convert_char4_to_char1")), ". w . R ",
3801 : void_type_node, 3, build_pointer_type (pchar1_type_node),
3802 : gfc_charlen_type_node, pchar4_type_node);
3803 :
3804 : /* Misc. functions. */
3805 :
3806 31441 : gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec (
3807 : get_identifier (PREFIX("ttynam")), ". W . . ",
3808 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3809 : integer_type_node);
3810 :
3811 31441 : gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec (
3812 : get_identifier (PREFIX("fdate")), ". W . ",
3813 : void_type_node, 2, pchar_type_node, gfc_charlen_type_node);
3814 :
3815 31441 : gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec (
3816 : get_identifier (PREFIX("ctime")), ". W . . ",
3817 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3818 : gfc_int8_type_node);
3819 :
3820 31441 : gfor_fndecl_random_init = gfc_build_library_function_decl (
3821 : get_identifier (PREFIX("random_init")),
3822 : void_type_node, 3, gfc_logical4_type_node, gfc_logical4_type_node,
3823 : gfc_int4_type_node);
3824 :
3825 : // gfor_fndecl_caf_rand_init is defined in the lib-coarray section below.
3826 :
3827 31441 : gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec (
3828 : get_identifier (PREFIX("selected_char_kind")), ". . R ",
3829 : gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node);
3830 31441 : DECL_PURE_P (gfor_fndecl_sc_kind) = 1;
3831 31441 : TREE_NOTHROW (gfor_fndecl_sc_kind) = 1;
3832 :
3833 31441 : gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec (
3834 : get_identifier (PREFIX("selected_int_kind")), ". R ",
3835 : gfc_int4_type_node, 1, pvoid_type_node);
3836 31441 : DECL_PURE_P (gfor_fndecl_si_kind) = 1;
3837 31441 : TREE_NOTHROW (gfor_fndecl_si_kind) = 1;
3838 :
3839 31441 : gfor_fndecl_sl_kind = gfc_build_library_function_decl_with_spec (
3840 : get_identifier (PREFIX("selected_logical_kind")), ". R ",
3841 : gfc_int4_type_node, 1, pvoid_type_node);
3842 31441 : DECL_PURE_P (gfor_fndecl_sl_kind) = 1;
3843 31441 : TREE_NOTHROW (gfor_fndecl_sl_kind) = 1;
3844 :
3845 31441 : gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec (
3846 : get_identifier (PREFIX("selected_real_kind2008")), ". R R ",
3847 : gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node,
3848 : pvoid_type_node);
3849 31441 : DECL_PURE_P (gfor_fndecl_sr_kind) = 1;
3850 31441 : TREE_NOTHROW (gfor_fndecl_sr_kind) = 1;
3851 :
3852 31441 : gfor_fndecl_system_clock4 = gfc_build_library_function_decl (
3853 : get_identifier (PREFIX("system_clock_4")),
3854 : void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node,
3855 : gfc_pint4_type_node);
3856 :
3857 31441 : gfor_fndecl_system_clock8 = gfc_build_library_function_decl (
3858 : get_identifier (PREFIX("system_clock_8")),
3859 : void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node,
3860 : gfc_pint8_type_node);
3861 :
3862 : /* Power functions. */
3863 31441 : {
3864 31441 : tree ctype, rtype, itype, jtype;
3865 31441 : int rkind, ikind, jkind;
3866 : #define NIKINDS 3
3867 : #define NRKINDS 4
3868 : #define NUKINDS 5
3869 31441 : static const int ikinds[NIKINDS] = {4, 8, 16};
3870 31441 : static const int rkinds[NRKINDS] = {4, 8, 10, 16};
3871 31441 : static const int ukinds[NUKINDS] = {1, 2, 4, 8, 16};
3872 31441 : char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */
3873 :
3874 125764 : for (ikind=0; ikind < NIKINDS; ikind++)
3875 : {
3876 94323 : itype = gfc_get_int_type (ikinds[ikind]);
3877 :
3878 471615 : for (jkind=0; jkind < NIKINDS; jkind++)
3879 : {
3880 282969 : jtype = gfc_get_int_type (ikinds[jkind]);
3881 282969 : if (itype && jtype)
3882 : {
3883 280934 : sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind],
3884 : ikinds[jkind]);
3885 561868 : gfor_fndecl_math_powi[jkind][ikind].integer =
3886 280934 : gfc_build_library_function_decl (get_identifier (name),
3887 : jtype, 2, jtype, itype);
3888 280934 : TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3889 280934 : TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3890 : }
3891 : }
3892 :
3893 471615 : for (rkind = 0; rkind < NRKINDS; rkind ++)
3894 : {
3895 377292 : rtype = gfc_get_real_type (rkinds[rkind]);
3896 377292 : if (rtype && itype)
3897 : {
3898 375664 : sprintf (name, PREFIX("pow_r%d_i%d"),
3899 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3900 : ikinds[ikind]);
3901 751328 : gfor_fndecl_math_powi[rkind][ikind].real =
3902 375664 : gfc_build_library_function_decl (get_identifier (name),
3903 : rtype, 2, rtype, itype);
3904 375664 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
3905 375664 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
3906 : }
3907 :
3908 377292 : ctype = gfc_get_complex_type (rkinds[rkind]);
3909 377292 : if (ctype && itype)
3910 : {
3911 375664 : sprintf (name, PREFIX("pow_c%d_i%d"),
3912 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3913 : ikinds[ikind]);
3914 751328 : gfor_fndecl_math_powi[rkind][ikind].cmplx =
3915 375664 : gfc_build_library_function_decl (get_identifier (name),
3916 : ctype, 2,ctype, itype);
3917 375664 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
3918 375664 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
3919 : }
3920 : }
3921 : /* For unsigned types, we have every power for every type. */
3922 565938 : for (int base = 0; base < NUKINDS; base++)
3923 : {
3924 471615 : tree base_type = gfc_get_unsigned_type (ukinds[base]);
3925 2829690 : for (int expon = 0; expon < NUKINDS; expon++)
3926 : {
3927 2358075 : tree expon_type = gfc_get_unsigned_type (ukinds[base]);
3928 2358075 : if (base_type && expon_type)
3929 : {
3930 18375 : sprintf (name, PREFIX("pow_m%d_m%d"), ukinds[base],
3931 18375 : ukinds[expon]);
3932 36750 : gfor_fndecl_unsigned_pow_list [base][expon] =
3933 18375 : gfc_build_library_function_decl (get_identifier (name),
3934 : base_type, 2, base_type, expon_type);
3935 18375 : TREE_READONLY (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
3936 18375 : TREE_NOTHROW (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
3937 : }
3938 : }
3939 : }
3940 : }
3941 : #undef NIKINDS
3942 : #undef NRKINDS
3943 : #undef NUKINDS
3944 : }
3945 :
3946 31441 : gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl (
3947 : get_identifier (PREFIX("ishftc4")),
3948 : gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node,
3949 : gfc_int4_type_node);
3950 31441 : TREE_READONLY (gfor_fndecl_math_ishftc4) = 1;
3951 31441 : TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1;
3952 :
3953 31441 : gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl (
3954 : get_identifier (PREFIX("ishftc8")),
3955 : gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node,
3956 : gfc_int4_type_node);
3957 31441 : TREE_READONLY (gfor_fndecl_math_ishftc8) = 1;
3958 31441 : TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1;
3959 :
3960 31441 : if (gfc_int16_type_node)
3961 : {
3962 31034 : gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl (
3963 : get_identifier (PREFIX("ishftc16")),
3964 : gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node,
3965 : gfc_int4_type_node);
3966 31034 : TREE_READONLY (gfor_fndecl_math_ishftc16) = 1;
3967 31034 : TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1;
3968 : }
3969 :
3970 : /* BLAS functions. */
3971 31441 : {
3972 31441 : tree pint = build_pointer_type (integer_type_node);
3973 31441 : tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind));
3974 31441 : tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind));
3975 31441 : tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind));
3976 31441 : tree pz = build_pointer_type
3977 31441 : (gfc_get_complex_type (gfc_default_double_kind));
3978 :
3979 62882 : gfor_fndecl_sgemm = gfc_build_library_function_decl
3980 32216 : (get_identifier
3981 : (flag_underscoring ? "sgemm_" : "sgemm"),
3982 : void_type_node, 15, pchar_type_node,
3983 : pchar_type_node, pint, pint, pint, ps, ps, pint,
3984 : ps, pint, ps, ps, pint, integer_type_node,
3985 : integer_type_node);
3986 62882 : gfor_fndecl_dgemm = gfc_build_library_function_decl
3987 32216 : (get_identifier
3988 : (flag_underscoring ? "dgemm_" : "dgemm"),
3989 : void_type_node, 15, pchar_type_node,
3990 : pchar_type_node, pint, pint, pint, pd, pd, pint,
3991 : pd, pint, pd, pd, pint, integer_type_node,
3992 : integer_type_node);
3993 62882 : gfor_fndecl_cgemm = gfc_build_library_function_decl
3994 32216 : (get_identifier
3995 : (flag_underscoring ? "cgemm_" : "cgemm"),
3996 : void_type_node, 15, pchar_type_node,
3997 : pchar_type_node, pint, pint, pint, pc, pc, pint,
3998 : pc, pint, pc, pc, pint, integer_type_node,
3999 : integer_type_node);
4000 62882 : gfor_fndecl_zgemm = gfc_build_library_function_decl
4001 32216 : (get_identifier
4002 : (flag_underscoring ? "zgemm_" : "zgemm"),
4003 : void_type_node, 15, pchar_type_node,
4004 : pchar_type_node, pint, pint, pint, pz, pz, pint,
4005 : pz, pint, pz, pz, pint, integer_type_node,
4006 : integer_type_node);
4007 : }
4008 :
4009 : /* Other functions. */
4010 31441 : gfor_fndecl_iargc = gfc_build_library_function_decl (
4011 : get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0);
4012 31441 : TREE_NOTHROW (gfor_fndecl_iargc) = 1;
4013 :
4014 31441 : gfor_fndecl_kill_sub = gfc_build_library_function_decl (
4015 : get_identifier (PREFIX ("kill_sub")), void_type_node,
4016 : 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node);
4017 :
4018 31441 : gfor_fndecl_kill = gfc_build_library_function_decl (
4019 : get_identifier (PREFIX ("kill")), gfc_int4_type_node,
4020 : 2, gfc_int4_type_node, gfc_int4_type_node);
4021 :
4022 31441 : gfor_fndecl_is_contiguous0 = gfc_build_library_function_decl_with_spec (
4023 : get_identifier (PREFIX("is_contiguous0")), ". R ",
4024 : gfc_int4_type_node, 1, pvoid_type_node);
4025 31441 : DECL_PURE_P (gfor_fndecl_is_contiguous0) = 1;
4026 31441 : TREE_NOTHROW (gfor_fndecl_is_contiguous0) = 1;
4027 :
4028 31441 : gfor_fndecl_fstat_i4_sub = gfc_build_library_function_decl (
4029 : get_identifier (PREFIX ("fstat_i4_sub")), void_type_node,
4030 : 3, gfc_pint4_type_node, gfc_pint4_type_node, gfc_pint4_type_node);
4031 :
4032 31441 : gfor_fndecl_fstat_i8_sub = gfc_build_library_function_decl (
4033 : get_identifier (PREFIX ("fstat_i8_sub")), void_type_node,
4034 : 3, gfc_pint8_type_node, gfc_pint8_type_node, gfc_pint8_type_node);
4035 :
4036 31441 : gfor_fndecl_lstat_i4_sub = gfc_build_library_function_decl (
4037 : get_identifier (PREFIX ("lstat_i4_sub")), void_type_node,
4038 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
4039 : gfc_charlen_type_node);
4040 :
4041 31441 : gfor_fndecl_lstat_i8_sub = gfc_build_library_function_decl (
4042 : get_identifier (PREFIX ("lstat_i8_sub")), void_type_node,
4043 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
4044 : gfc_charlen_type_node);
4045 :
4046 31441 : gfor_fndecl_stat_i4_sub = gfc_build_library_function_decl (
4047 : get_identifier (PREFIX ("stat_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 31441 : gfor_fndecl_stat_i8_sub = gfc_build_library_function_decl (
4052 : get_identifier (PREFIX ("stat_i8_sub")), void_type_node,
4053 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
4054 : gfc_charlen_type_node);
4055 31441 : }
4056 :
4057 :
4058 : /* Make prototypes for runtime library functions. */
4059 :
4060 : void
4061 31441 : gfc_build_builtin_function_decls (void)
4062 : {
4063 31441 : tree gfc_int8_type_node = gfc_get_int_type (8);
4064 :
4065 31441 : gfor_fndecl_stop_numeric = gfc_build_library_function_decl (
4066 : get_identifier (PREFIX("stop_numeric")),
4067 : void_type_node, 2, integer_type_node, boolean_type_node);
4068 : /* STOP doesn't return. */
4069 31441 : TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1;
4070 :
4071 31441 : gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec (
4072 : get_identifier (PREFIX("stop_string")), ". R . . ",
4073 : void_type_node, 3, pchar_type_node, size_type_node,
4074 : boolean_type_node);
4075 : /* STOP doesn't return. */
4076 31441 : TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1;
4077 :
4078 31441 : gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl (
4079 : get_identifier (PREFIX("error_stop_numeric")),
4080 : void_type_node, 2, integer_type_node, boolean_type_node);
4081 : /* ERROR STOP doesn't return. */
4082 31441 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1;
4083 :
4084 31441 : gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec (
4085 : get_identifier (PREFIX("error_stop_string")), ". R . . ",
4086 : void_type_node, 3, pchar_type_node, size_type_node,
4087 : boolean_type_node);
4088 : /* ERROR STOP doesn't return. */
4089 31441 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1;
4090 :
4091 31441 : gfor_fndecl_pause_numeric = gfc_build_library_function_decl (
4092 : get_identifier (PREFIX("pause_numeric")),
4093 : void_type_node, 1, gfc_int8_type_node);
4094 :
4095 31441 : gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec (
4096 : get_identifier (PREFIX("pause_string")), ". R . ",
4097 : void_type_node, 2, pchar_type_node, size_type_node);
4098 :
4099 31441 : gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec (
4100 : get_identifier (PREFIX("runtime_error")), ". R ",
4101 : void_type_node, -1, pchar_type_node);
4102 : /* The runtime_error function does not return. */
4103 31441 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1;
4104 :
4105 31441 : gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec (
4106 : get_identifier (PREFIX("runtime_error_at")), ". R R ",
4107 : void_type_node, -2, pchar_type_node, pchar_type_node);
4108 : /* The runtime_error_at function does not return. */
4109 31441 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1;
4110 :
4111 31441 : gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec (
4112 : get_identifier (PREFIX("runtime_warning_at")), ". R R ",
4113 : void_type_node, -2, pchar_type_node, pchar_type_node);
4114 :
4115 31441 : gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec (
4116 : get_identifier (PREFIX("generate_error")), ". W . R ",
4117 : void_type_node, 3, pvoid_type_node, integer_type_node,
4118 : pchar_type_node);
4119 :
4120 31441 : gfor_fndecl_os_error_at = gfc_build_library_function_decl_with_spec (
4121 : get_identifier (PREFIX("os_error_at")), ". R R ",
4122 : void_type_node, -2, pchar_type_node, pchar_type_node);
4123 : /* The os_error_at function does not return. */
4124 31441 : TREE_THIS_VOLATILE (gfor_fndecl_os_error_at) = 1;
4125 :
4126 31441 : gfor_fndecl_set_args = gfc_build_library_function_decl (
4127 : get_identifier (PREFIX("set_args")),
4128 : void_type_node, 2, integer_type_node,
4129 : build_pointer_type (pchar_type_node));
4130 :
4131 31441 : gfor_fndecl_set_fpe = gfc_build_library_function_decl (
4132 : get_identifier (PREFIX("set_fpe")),
4133 : void_type_node, 1, integer_type_node);
4134 :
4135 31441 : gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl (
4136 : get_identifier (PREFIX("ieee_procedure_entry")),
4137 : void_type_node, 1, pvoid_type_node);
4138 :
4139 31441 : gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl (
4140 : get_identifier (PREFIX("ieee_procedure_exit")),
4141 : void_type_node, 1, pvoid_type_node);
4142 :
4143 : /* Keep the array dimension in sync with the call, later in this file. */
4144 31441 : gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec (
4145 : get_identifier (PREFIX("set_options")), ". . R ",
4146 : void_type_node, 2, integer_type_node,
4147 : build_pointer_type (integer_type_node));
4148 :
4149 31441 : gfor_fndecl_set_convert = gfc_build_library_function_decl (
4150 : get_identifier (PREFIX("set_convert")),
4151 : void_type_node, 1, integer_type_node);
4152 :
4153 31441 : gfor_fndecl_set_record_marker = gfc_build_library_function_decl (
4154 : get_identifier (PREFIX("set_record_marker")),
4155 : void_type_node, 1, integer_type_node);
4156 :
4157 31441 : gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl (
4158 : get_identifier (PREFIX("set_max_subrecord_length")),
4159 : void_type_node, 1, integer_type_node);
4160 :
4161 31441 : gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec (
4162 : get_identifier (PREFIX("internal_pack")), ". r ",
4163 : pvoid_type_node, 1, pvoid_type_node);
4164 :
4165 31441 : gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec (
4166 : get_identifier (PREFIX("internal_unpack")), ". w R ",
4167 : void_type_node, 2, pvoid_type_node, pvoid_type_node);
4168 :
4169 31441 : gfor_fndecl_in_pack_class = gfc_build_library_function_decl_with_spec (
4170 : get_identifier (PREFIX ("internal_pack_class")), ". w R r r ",
4171 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4172 : integer_type_node);
4173 :
4174 31441 : gfor_fndecl_in_unpack_class = gfc_build_library_function_decl_with_spec (
4175 : get_identifier (PREFIX ("internal_unpack_class")), ". w R r r ",
4176 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4177 : integer_type_node);
4178 :
4179 31441 : gfor_fndecl_associated = gfc_build_library_function_decl_with_spec (
4180 : get_identifier (PREFIX ("associated")), ". R R ", integer_type_node, 2,
4181 : ppvoid_type_node, ppvoid_type_node);
4182 31441 : DECL_PURE_P (gfor_fndecl_associated) = 1;
4183 31441 : TREE_NOTHROW (gfor_fndecl_associated) = 1;
4184 :
4185 : /* Coarray library calls. */
4186 31441 : if (flag_coarray == GFC_FCOARRAY_LIB)
4187 : {
4188 466 : tree pint_type, pppchar_type, psize_type;
4189 :
4190 466 : pint_type = build_pointer_type (integer_type_node);
4191 466 : pppchar_type
4192 466 : = build_pointer_type (build_pointer_type (pchar_type_node));
4193 466 : psize_type = build_pointer_type (size_type_node);
4194 :
4195 466 : gfor_fndecl_caf_init = gfc_build_library_function_decl_with_spec (
4196 : get_identifier (PREFIX("caf_init")), ". W W ",
4197 : void_type_node, 2, pint_type, pppchar_type);
4198 :
4199 466 : gfor_fndecl_caf_finalize = gfc_build_library_function_decl (
4200 : get_identifier (PREFIX("caf_finalize")), void_type_node, 0);
4201 :
4202 466 : gfor_fndecl_caf_this_image = gfc_build_library_function_decl_with_spec (
4203 : get_identifier (PREFIX ("caf_this_image")), ". r ", integer_type_node,
4204 : 1, pvoid_type_node);
4205 :
4206 466 : gfor_fndecl_caf_num_images = gfc_build_library_function_decl (
4207 : get_identifier (PREFIX("caf_num_images")), integer_type_node,
4208 : 2, integer_type_node, integer_type_node);
4209 :
4210 466 : gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec (
4211 : get_identifier (PREFIX("caf_register")), ". . . W w w w . ",
4212 : void_type_node, 7,
4213 : size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node,
4214 : pint_type, pchar_type_node, size_type_node);
4215 :
4216 466 : gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec (
4217 : get_identifier (PREFIX("caf_deregister")), ". W . w w . ",
4218 : void_type_node, 5,
4219 : ppvoid_type_node, integer_type_node, pint_type, pchar_type_node,
4220 : size_type_node);
4221 :
4222 466 : gfor_fndecl_caf_register_accessor
4223 466 : = gfc_build_library_function_decl_with_spec (
4224 : get_identifier (PREFIX ("caf_register_accessor")), ". r r ",
4225 : void_type_node, 2, integer_type_node, pvoid_type_node);
4226 :
4227 466 : gfor_fndecl_caf_register_accessors_finish
4228 466 : = gfc_build_library_function_decl_with_spec (
4229 : get_identifier (PREFIX ("caf_register_accessors_finish")), ". ",
4230 : void_type_node, 0);
4231 :
4232 466 : gfor_fndecl_caf_get_remote_function_index
4233 466 : = gfc_build_library_function_decl_with_spec (
4234 : get_identifier (PREFIX ("caf_get_remote_function_index")), ". r ",
4235 : integer_type_node, 1, integer_type_node);
4236 :
4237 466 : gfor_fndecl_caf_get_from_remote
4238 466 : = gfc_build_library_function_decl_with_spec (
4239 : get_identifier (PREFIX ("caf_get_from_remote")),
4240 : ". r r r r r w w w r r w r w r r ", void_type_node, 15,
4241 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4242 : size_type_node, ppvoid_type_node, psize_type, pvoid_type_node,
4243 : boolean_type_node, integer_type_node, pvoid_type_node, size_type_node,
4244 : pint_type, pvoid_type_node, pint_type);
4245 :
4246 466 : gfor_fndecl_caf_send_to_remote
4247 466 : = gfc_build_library_function_decl_with_spec (
4248 : get_identifier (PREFIX ("caf_send_to_remote")),
4249 : ". r r r r r r r r r w r w r r ", void_type_node, 14, pvoid_type_node,
4250 : pvoid_type_node, psize_type, integer_type_node, size_type_node,
4251 : ppvoid_type_node, psize_type, pvoid_type_node, integer_type_node,
4252 : pvoid_type_node, size_type_node, pint_type, pvoid_type_node,
4253 : pint_type);
4254 :
4255 466 : gfor_fndecl_caf_transfer_between_remotes
4256 466 : = gfc_build_library_function_decl_with_spec (
4257 : get_identifier (PREFIX ("caf_transfer_between_remotes")),
4258 : ". r r r r r r r r r r r r r r r r w w r r ", void_type_node, 20,
4259 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4260 : integer_type_node, pvoid_type_node, size_type_node, pvoid_type_node,
4261 : pvoid_type_node, psize_type, integer_type_node, integer_type_node,
4262 : pvoid_type_node, size_type_node, size_type_node, boolean_type_node,
4263 : pint_type, pint_type, pvoid_type_node, pint_type);
4264 :
4265 466 : gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec (
4266 : get_identifier (PREFIX ("caf_sync_all")), ". w w . ", void_type_node, 3,
4267 : pint_type, pchar_type_node, size_type_node);
4268 :
4269 466 : gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec (
4270 : get_identifier (PREFIX("caf_sync_memory")), ". w w . ", void_type_node,
4271 : 3, pint_type, pchar_type_node, size_type_node);
4272 :
4273 466 : gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec (
4274 : get_identifier (PREFIX("caf_sync_images")), ". . r w w . ", void_type_node,
4275 : 5, integer_type_node, pint_type, pint_type,
4276 : pchar_type_node, size_type_node);
4277 :
4278 466 : gfor_fndecl_caf_error_stop = gfc_build_library_function_decl (
4279 : get_identifier (PREFIX("caf_error_stop")),
4280 : void_type_node, 1, integer_type_node);
4281 : /* CAF's ERROR STOP doesn't return. */
4282 466 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1;
4283 :
4284 466 : gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec (
4285 : get_identifier (PREFIX("caf_error_stop_str")), ". r . ",
4286 : void_type_node, 2, pchar_type_node, size_type_node);
4287 : /* CAF's ERROR STOP doesn't return. */
4288 466 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1;
4289 :
4290 466 : gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl (
4291 : get_identifier (PREFIX("caf_stop_numeric")),
4292 : void_type_node, 1, integer_type_node);
4293 : /* CAF's STOP doesn't return. */
4294 466 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1;
4295 :
4296 466 : gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec (
4297 : get_identifier (PREFIX("caf_stop_str")), ". r . ",
4298 : void_type_node, 2, pchar_type_node, size_type_node);
4299 : /* CAF's STOP doesn't return. */
4300 466 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1;
4301 :
4302 466 : gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec (
4303 : get_identifier (PREFIX("caf_atomic_define")), ". r . . w w . . ",
4304 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4305 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4306 :
4307 466 : gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec (
4308 : get_identifier (PREFIX("caf_atomic_ref")), ". r . . w w . . ",
4309 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4310 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4311 :
4312 466 : gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec (
4313 : get_identifier (PREFIX("caf_atomic_cas")), ". r . . w r r w . . ",
4314 : void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node,
4315 : pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4316 : integer_type_node, integer_type_node);
4317 :
4318 466 : gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec (
4319 : get_identifier (PREFIX("caf_atomic_op")), ". . r . . r w w . . ",
4320 : void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node,
4321 : integer_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4322 : integer_type_node, integer_type_node);
4323 :
4324 466 : gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec (
4325 : get_identifier (PREFIX("caf_lock")), ". r . . w w w . ",
4326 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4327 : pint_type, pint_type, pchar_type_node, size_type_node);
4328 :
4329 466 : gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec (
4330 : get_identifier (PREFIX("caf_unlock")), ". r . . w w . ",
4331 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4332 : pint_type, pchar_type_node, size_type_node);
4333 :
4334 466 : gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec (
4335 : get_identifier (PREFIX("caf_event_post")), ". r . . w w . ",
4336 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4337 : pint_type, pchar_type_node, size_type_node);
4338 :
4339 466 : gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec (
4340 : get_identifier (PREFIX("caf_event_wait")), ". 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 466 : gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec (
4345 : get_identifier (PREFIX("caf_event_query")), ". r . . w w ",
4346 : void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node,
4347 : pint_type, pint_type);
4348 :
4349 466 : gfor_fndecl_caf_fail_image = gfc_build_library_function_decl (
4350 : get_identifier (PREFIX("caf_fail_image")), void_type_node, 0);
4351 : /* CAF's FAIL doesn't return. */
4352 466 : TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1;
4353 :
4354 466 : gfor_fndecl_caf_failed_images
4355 466 : = gfc_build_library_function_decl_with_spec (
4356 : get_identifier (PREFIX("caf_failed_images")), ". w . r ",
4357 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4358 : integer_type_node);
4359 :
4360 466 : gfor_fndecl_caf_form_team = gfc_build_library_function_decl_with_spec (
4361 : get_identifier (PREFIX ("caf_form_team")), ". r w r w w w ",
4362 : void_type_node, 6, integer_type_node, ppvoid_type_node, pint_type,
4363 : pint_type, pchar_type_node, size_type_node);
4364 :
4365 466 : gfor_fndecl_caf_change_team = gfc_build_library_function_decl_with_spec (
4366 : get_identifier (PREFIX ("caf_change_team")), ". r w w w ",
4367 : void_type_node, 4, pvoid_type_node, pint_type, pchar_type_node,
4368 : size_type_node);
4369 :
4370 466 : gfor_fndecl_caf_end_team = gfc_build_library_function_decl_with_spec (
4371 : get_identifier (PREFIX ("caf_end_team")), ". w w w ", void_type_node, 3,
4372 : pint_type, pchar_type_node, size_type_node);
4373 :
4374 466 : gfor_fndecl_caf_get_team = gfc_build_library_function_decl_with_spec (
4375 : get_identifier (PREFIX ("caf_get_team")), ". r ", pvoid_type_node, 1,
4376 : pint_type);
4377 :
4378 466 : gfor_fndecl_caf_sync_team = gfc_build_library_function_decl_with_spec (
4379 : get_identifier (PREFIX ("caf_sync_team")), ". r w w w ", void_type_node,
4380 : 4, pvoid_type_node, pint_type, pchar_type_node, size_type_node);
4381 :
4382 466 : gfor_fndecl_caf_team_number = gfc_build_library_function_decl_with_spec (
4383 : get_identifier (PREFIX ("caf_team_number")), ". r ", integer_type_node,
4384 : 1, pvoid_type_node);
4385 :
4386 466 : gfor_fndecl_caf_image_status = gfc_build_library_function_decl_with_spec (
4387 : get_identifier (PREFIX ("caf_image_status")), ". r r ",
4388 : integer_type_node, 2, integer_type_node, ppvoid_type_node);
4389 :
4390 466 : gfor_fndecl_caf_stopped_images
4391 466 : = gfc_build_library_function_decl_with_spec (
4392 : get_identifier (PREFIX("caf_stopped_images")), ". w r r ",
4393 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4394 : integer_type_node);
4395 :
4396 466 : gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec (
4397 : get_identifier (PREFIX("caf_co_broadcast")), ". w . w w . ",
4398 : void_type_node, 5, pvoid_type_node, integer_type_node,
4399 : pint_type, pchar_type_node, size_type_node);
4400 :
4401 466 : gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec (
4402 : get_identifier (PREFIX("caf_co_max")), ". w . w w . . ",
4403 : void_type_node, 6, pvoid_type_node, integer_type_node,
4404 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4405 :
4406 466 : gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec (
4407 : get_identifier (PREFIX("caf_co_min")), ". w . w w . . ",
4408 : void_type_node, 6, pvoid_type_node, integer_type_node,
4409 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4410 :
4411 466 : gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec (
4412 : get_identifier (PREFIX("caf_co_reduce")), ". w r . . w w . . ",
4413 : void_type_node, 8, pvoid_type_node,
4414 : build_pointer_type (build_varargs_function_type_list (void_type_node,
4415 : NULL_TREE)),
4416 : integer_type_node, integer_type_node, pint_type, pchar_type_node,
4417 : integer_type_node, size_type_node);
4418 :
4419 466 : gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec (
4420 : get_identifier (PREFIX("caf_co_sum")), ". w . w w . ",
4421 : void_type_node, 5, pvoid_type_node, integer_type_node,
4422 : pint_type, pchar_type_node, size_type_node);
4423 :
4424 466 : gfor_fndecl_caf_is_present_on_remote
4425 466 : = gfc_build_library_function_decl_with_spec (
4426 : get_identifier (PREFIX ("caf_is_present_on_remote")), ". r r r r r ",
4427 : integer_type_node, 5, pvoid_type_node, integer_type_node,
4428 : integer_type_node, pvoid_type_node, size_type_node);
4429 :
4430 466 : gfor_fndecl_caf_random_init = gfc_build_library_function_decl (
4431 : get_identifier (PREFIX("caf_random_init")),
4432 : void_type_node, 2, logical_type_node, logical_type_node);
4433 : }
4434 :
4435 31441 : gfc_build_intrinsic_function_decls ();
4436 31441 : gfc_build_intrinsic_lib_fndecls ();
4437 31441 : gfc_build_io_library_fndecls ();
4438 31441 : }
4439 :
4440 :
4441 : /* Evaluate the length of dummy character variables. */
4442 :
4443 : static void
4444 774 : gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl,
4445 : gfc_wrapped_block *block)
4446 : {
4447 774 : stmtblock_t init;
4448 :
4449 774 : gfc_finish_decl (cl->backend_decl);
4450 :
4451 774 : gfc_start_block (&init);
4452 :
4453 : /* Evaluate the string length expression. */
4454 774 : gfc_conv_string_length (cl, NULL, &init);
4455 :
4456 774 : gfc_trans_vla_type_sizes (sym, &init);
4457 :
4458 774 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4459 774 : }
4460 :
4461 :
4462 : /* Allocate and cleanup an automatic character variable. */
4463 :
4464 : static void
4465 354 : gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block)
4466 : {
4467 354 : stmtblock_t init;
4468 354 : tree decl;
4469 354 : tree tmp;
4470 354 : bool back;
4471 :
4472 354 : gcc_assert (sym->backend_decl);
4473 354 : gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length);
4474 :
4475 354 : gfc_init_block (&init);
4476 :
4477 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
4478 : function result (ie. proc_name = proc_name->result), gfc_add_init_cleanup
4479 : must be called with the last, optional argument false so that the process
4480 : ing of the character length occurs after the processing of the result. */
4481 354 : back = sym->fn_result_dep;
4482 :
4483 : /* Evaluate the string length expression. */
4484 354 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
4485 :
4486 354 : gfc_trans_vla_type_sizes (sym, &init);
4487 :
4488 354 : decl = sym->backend_decl;
4489 :
4490 : /* Emit a DECL_EXPR for this variable, which will cause the
4491 : gimplifier to allocate storage, and all that good stuff. */
4492 354 : tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl);
4493 354 : gfc_add_expr_to_block (&init, tmp);
4494 :
4495 354 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE, back);
4496 354 : }
4497 :
4498 : /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */
4499 :
4500 : static void
4501 64 : gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block)
4502 : {
4503 64 : stmtblock_t init;
4504 :
4505 64 : gcc_assert (sym->backend_decl);
4506 64 : gfc_start_block (&init);
4507 :
4508 : /* Set the initial value to length. See the comments in
4509 : function gfc_add_assign_aux_vars in this file. */
4510 64 : gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl),
4511 : build_int_cst (gfc_charlen_type_node, -2));
4512 :
4513 64 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4514 64 : }
4515 :
4516 : static void
4517 161926 : gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body)
4518 : {
4519 161926 : tree t = *tp, var, val;
4520 :
4521 161926 : if (t == NULL || t == error_mark_node)
4522 : return;
4523 151903 : if (TREE_CONSTANT (t) || DECL_P (t))
4524 : return;
4525 :
4526 62513 : if (TREE_CODE (t) == SAVE_EXPR)
4527 : {
4528 35874 : if (SAVE_EXPR_RESOLVED_P (t))
4529 : {
4530 0 : *tp = TREE_OPERAND (t, 0);
4531 0 : return;
4532 : }
4533 35874 : val = TREE_OPERAND (t, 0);
4534 : }
4535 : else
4536 : val = t;
4537 :
4538 62513 : var = gfc_create_var_np (TREE_TYPE (t), NULL);
4539 62513 : gfc_add_decl_to_function (var);
4540 62513 : gfc_add_modify (body, var, unshare_expr (val));
4541 62513 : if (TREE_CODE (t) == SAVE_EXPR)
4542 35874 : TREE_OPERAND (t, 0) = var;
4543 62513 : *tp = var;
4544 : }
4545 :
4546 : static void
4547 90509 : gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body)
4548 : {
4549 90509 : tree t;
4550 :
4551 90509 : if (type == NULL || type == error_mark_node)
4552 : return;
4553 :
4554 90509 : type = TYPE_MAIN_VARIANT (type);
4555 :
4556 90509 : if (TREE_CODE (type) == INTEGER_TYPE)
4557 : {
4558 50119 : gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body);
4559 50119 : gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body);
4560 :
4561 64888 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4562 : {
4563 14769 : TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type);
4564 14769 : TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type);
4565 : }
4566 : }
4567 40390 : else if (TREE_CODE (type) == ARRAY_TYPE)
4568 : {
4569 30844 : gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body);
4570 30844 : gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body);
4571 30844 : gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body);
4572 30844 : gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body);
4573 :
4574 30844 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4575 : {
4576 0 : TYPE_SIZE (t) = TYPE_SIZE (type);
4577 0 : TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type);
4578 : }
4579 : }
4580 : }
4581 :
4582 : /* Make sure all type sizes and array domains are either constant,
4583 : or variable or parameter decls. This is a simplified variant
4584 : of gimplify_type_sizes, but we can't use it here, as none of the
4585 : variables in the expressions have been gimplified yet.
4586 : As type sizes and domains for various variable length arrays
4587 : contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars
4588 : time, without this routine gimplify_type_sizes in the middle-end
4589 : could result in the type sizes being gimplified earlier than where
4590 : those variables are initialized. */
4591 :
4592 : void
4593 27329 : gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body)
4594 : {
4595 27329 : tree type = TREE_TYPE (sym->backend_decl);
4596 :
4597 27329 : if (TREE_CODE (type) == FUNCTION_TYPE
4598 1105 : && (sym->attr.function || sym->attr.result || sym->attr.entry))
4599 : {
4600 1105 : if (! current_fake_result_decl)
4601 : return;
4602 :
4603 1105 : type = TREE_TYPE (TREE_VALUE (current_fake_result_decl));
4604 : }
4605 :
4606 53795 : while (POINTER_TYPE_P (type))
4607 26466 : type = TREE_TYPE (type);
4608 :
4609 27329 : if (GFC_DESCRIPTOR_TYPE_P (type))
4610 : {
4611 1492 : tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type);
4612 :
4613 2984 : while (POINTER_TYPE_P (etype))
4614 1492 : etype = TREE_TYPE (etype);
4615 :
4616 1492 : gfc_trans_vla_type_sizes_1 (etype, body);
4617 : }
4618 :
4619 27329 : gfc_trans_vla_type_sizes_1 (type, body);
4620 : }
4621 :
4622 :
4623 : /* Initialize a derived type by building an lvalue from the symbol
4624 : and using trans_assignment to do the work. Set dealloc to false
4625 : if no deallocation prior the assignment is needed. */
4626 : void
4627 1471 : gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc,
4628 : bool pdt_ok)
4629 : {
4630 1471 : gfc_expr *e;
4631 1471 : tree tmp;
4632 1471 : tree present;
4633 :
4634 1471 : gcc_assert (block);
4635 :
4636 : /* Initialization of PDTs is done elsewhere. */
4637 1471 : if (IS_PDT (sym) && !pdt_ok)
4638 : return;
4639 :
4640 1149 : gcc_assert (!sym->attr.allocatable);
4641 1149 : gfc_set_sym_referenced (sym);
4642 1149 : e = gfc_lval_expr_from_sym (sym);
4643 1149 : tmp = gfc_trans_assignment (e, sym->value, false, dealloc);
4644 1149 : if (sym->attr.dummy && (sym->attr.optional
4645 241 : || sym->ns->proc_name->attr.entry_master))
4646 : {
4647 39 : present = gfc_conv_expr_present (sym);
4648 39 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present,
4649 : tmp, build_empty_stmt (input_location));
4650 : }
4651 1149 : gfc_add_expr_to_block (block, tmp);
4652 1149 : gfc_free_expr (e);
4653 : }
4654 :
4655 :
4656 : /* Initialize a PDT, either when the symbol has a value or when all the
4657 : components have an initializer. */
4658 : static tree
4659 533 : gfc_init_default_pdt (gfc_symbol *sym, bool dealloc)
4660 : {
4661 533 : stmtblock_t block;
4662 533 : tree tmp;
4663 533 : gfc_component *c;
4664 :
4665 533 : if (sym->value && sym->value->symtree
4666 12 : && sym->value->symtree->n.sym
4667 12 : && !sym->value->symtree->n.sym->attr.artificial)
4668 : {
4669 12 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym),
4670 : sym->value, false, false, true);
4671 12 : return tmp;
4672 : }
4673 :
4674 521 : if (!dealloc || !sym->value)
4675 : return NULL_TREE;
4676 :
4677 : /* Allowed in the case where all the components have initializers and
4678 : there are no LEN components. */
4679 329 : c = sym->ts.u.derived->components;
4680 542 : for (; c; c = c->next)
4681 522 : if (c->attr.pdt_len || !c->initializer)
4682 : return NULL_TREE;
4683 :
4684 20 : gfc_init_block (&block);
4685 20 : gfc_init_default_dt (sym, &block, dealloc, true);
4686 20 : return gfc_finish_block (&block);
4687 : }
4688 :
4689 :
4690 : /* Initialize INTENT(OUT) derived type dummies. As well as giving
4691 : them their default initializer, if they have allocatable
4692 : components, they have their allocatable components deallocated. */
4693 :
4694 : static void
4695 98702 : init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4696 : {
4697 98702 : stmtblock_t init;
4698 98702 : gfc_formal_arglist *f;
4699 98702 : tree tmp;
4700 98702 : tree present;
4701 98702 : gfc_symbol *s;
4702 :
4703 98702 : gfc_init_block (&init);
4704 199996 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
4705 101294 : if (f->sym && f->sym->attr.intent == INTENT_OUT
4706 3997 : && !f->sym->attr.pointer
4707 3943 : && f->sym->ts.type == BT_DERIVED)
4708 : {
4709 516 : s = f->sym;
4710 516 : tmp = NULL_TREE;
4711 :
4712 : /* Note: Allocatables are excluded as they are already handled
4713 : by the caller. */
4714 516 : if (!f->sym->attr.allocatable
4715 516 : && gfc_is_finalizable (s->ts.u.derived, NULL))
4716 : {
4717 38 : stmtblock_t block;
4718 38 : gfc_expr *e;
4719 :
4720 38 : gfc_init_block (&block);
4721 38 : s->attr.referenced = 1;
4722 38 : e = gfc_lval_expr_from_sym (s);
4723 38 : gfc_add_finalizer_call (&block, e);
4724 38 : gfc_free_expr (e);
4725 38 : tmp = gfc_finish_block (&block);
4726 : }
4727 :
4728 : /* Note: Allocatables are excluded as they are already handled
4729 : by the caller. */
4730 516 : if (tmp == NULL_TREE && !s->attr.allocatable
4731 358 : && s->ts.u.derived->attr.alloc_comp)
4732 126 : tmp = gfc_deallocate_alloc_comp (s->ts.u.derived,
4733 : s->backend_decl,
4734 126 : s->as ? s->as->rank : 0);
4735 :
4736 516 : if (tmp != NULL_TREE && (s->attr.optional
4737 145 : || s->ns->proc_name->attr.entry_master))
4738 : {
4739 19 : present = gfc_conv_expr_present (s);
4740 19 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4741 : present, tmp, build_empty_stmt (input_location));
4742 : }
4743 :
4744 516 : gfc_add_expr_to_block (&init, tmp);
4745 516 : if (s->value && !s->attr.allocatable)
4746 273 : gfc_init_default_dt (s, &init, false);
4747 : }
4748 100778 : else if (f->sym && f->sym->attr.intent == INTENT_OUT
4749 3481 : && f->sym->ts.type == BT_CLASS
4750 624 : && !CLASS_DATA (f->sym)->attr.class_pointer
4751 605 : && !CLASS_DATA (f->sym)->attr.allocatable)
4752 : {
4753 400 : stmtblock_t block;
4754 400 : gfc_expr *e;
4755 :
4756 400 : gfc_init_block (&block);
4757 400 : f->sym->attr.referenced = 1;
4758 400 : e = gfc_lval_expr_from_sym (f->sym);
4759 400 : gfc_add_finalizer_call (&block, e);
4760 400 : gfc_free_expr (e);
4761 400 : tmp = gfc_finish_block (&block);
4762 :
4763 400 : if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master)
4764 : {
4765 6 : present = gfc_conv_expr_present (f->sym);
4766 6 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4767 : present, tmp,
4768 : build_empty_stmt (input_location));
4769 : }
4770 400 : gfc_add_expr_to_block (&init, tmp);
4771 : }
4772 98702 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4773 98702 : }
4774 :
4775 :
4776 : /* Helper function to manage deferred string lengths. */
4777 :
4778 : static tree
4779 162 : gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init,
4780 : location_t loc)
4781 : {
4782 162 : tree tmp;
4783 :
4784 : /* Character length passed by reference. */
4785 162 : tmp = sym->ts.u.cl->passed_length;
4786 162 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
4787 162 : tmp = fold_convert (gfc_charlen_type_node, tmp);
4788 :
4789 162 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
4790 : /* Zero the string length when entering the scope. */
4791 162 : gfc_add_modify (init, sym->ts.u.cl->backend_decl,
4792 : build_int_cst (gfc_charlen_type_node, 0));
4793 : else
4794 : {
4795 0 : tree tmp2;
4796 :
4797 0 : tmp2 = fold_build2_loc (input_location, MODIFY_EXPR,
4798 : gfc_charlen_type_node,
4799 0 : sym->ts.u.cl->backend_decl, tmp);
4800 0 : if (sym->attr.optional)
4801 : {
4802 0 : tree present = gfc_conv_expr_present (sym);
4803 0 : tmp2 = build3_loc (input_location, COND_EXPR,
4804 : void_type_node, present, tmp2,
4805 : build_empty_stmt (input_location));
4806 : }
4807 0 : gfc_add_expr_to_block (init, tmp2);
4808 : }
4809 :
4810 162 : input_location = loc;
4811 :
4812 : /* Pass the final character length back. */
4813 162 : if (sym->attr.intent != INTENT_IN)
4814 : {
4815 324 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
4816 : gfc_charlen_type_node, tmp,
4817 162 : sym->ts.u.cl->backend_decl);
4818 162 : if (sym->attr.optional)
4819 : {
4820 0 : tree present = gfc_conv_expr_present (sym);
4821 0 : tmp = build3_loc (input_location, COND_EXPR,
4822 : void_type_node, present, tmp,
4823 : build_empty_stmt (input_location));
4824 : }
4825 : }
4826 : else
4827 : tmp = NULL_TREE;
4828 :
4829 162 : return tmp;
4830 : }
4831 :
4832 :
4833 : /* Get the result expression for a procedure. */
4834 :
4835 : static tree
4836 24897 : get_proc_result (gfc_symbol* sym)
4837 : {
4838 24897 : if (sym->attr.subroutine || sym == sym->result)
4839 : {
4840 12495 : if (current_fake_result_decl != NULL)
4841 12306 : return TREE_VALUE (current_fake_result_decl);
4842 :
4843 : return NULL_TREE;
4844 : }
4845 :
4846 12402 : return sym->result->backend_decl;
4847 : }
4848 :
4849 :
4850 : /* Generate function entry and exit code, and add it to the function body.
4851 : This includes:
4852 : Allocation and initialization of array variables.
4853 : Allocation of character string variables.
4854 : Initialization and possibly repacking of dummy arrays.
4855 : Initialization of ASSIGN statement auxiliary variable.
4856 : Initialization of ASSOCIATE names.
4857 : Automatic deallocation. */
4858 :
4859 : void
4860 98702 : gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4861 : {
4862 98702 : location_t loc;
4863 98702 : gfc_symbol *sym;
4864 98702 : gfc_formal_arglist *f;
4865 98702 : stmtblock_t tmpblock;
4866 98702 : bool seen_trans_deferred_array = false;
4867 98702 : bool is_pdt_type = false;
4868 98702 : tree tmp = NULL;
4869 98702 : gfc_expr *e;
4870 98702 : gfc_se se;
4871 98702 : stmtblock_t init;
4872 :
4873 : /* Deal with implicit return variables. Explicit return variables will
4874 : already have been added. */
4875 98702 : if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym)
4876 : {
4877 1687 : if (!current_fake_result_decl)
4878 : {
4879 81 : gfc_entry_list *el = NULL;
4880 81 : if (proc_sym->attr.entry_master)
4881 : {
4882 46 : for (el = proc_sym->ns->entries; el; el = el->next)
4883 46 : if (el->sym != el->sym->result)
4884 : break;
4885 : }
4886 : /* TODO: move to the appropriate place in resolve.cc. */
4887 81 : if (warn_return_type > 0 && el == NULL)
4888 4 : gfc_warning (OPT_Wreturn_type,
4889 : "Return value of function %qs at %L not set",
4890 : proc_sym->name, &proc_sym->declared_at);
4891 : }
4892 1606 : else if (proc_sym->as)
4893 : {
4894 807 : tree result = TREE_VALUE (current_fake_result_decl);
4895 807 : loc = input_location;
4896 807 : input_location = gfc_get_location (&proc_sym->declared_at);
4897 807 : gfc_trans_dummy_array_bias (proc_sym, result, block);
4898 :
4899 : /* An automatic character length, pointer array result. */
4900 807 : if (proc_sym->ts.type == BT_CHARACTER
4901 69 : && VAR_P (proc_sym->ts.u.cl->backend_decl))
4902 : {
4903 51 : tmp = NULL;
4904 51 : if (proc_sym->ts.deferred)
4905 : {
4906 12 : gfc_start_block (&init);
4907 12 : tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, loc);
4908 12 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
4909 : }
4910 : else
4911 39 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
4912 : }
4913 : }
4914 799 : else if (proc_sym->ts.type == BT_CHARACTER)
4915 : {
4916 763 : if (proc_sym->ts.deferred)
4917 : {
4918 91 : tmp = NULL;
4919 91 : loc = input_location;
4920 91 : input_location = gfc_get_location (&proc_sym->declared_at);
4921 91 : gfc_start_block (&init);
4922 : /* Zero the string length on entry. */
4923 91 : gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl,
4924 : build_int_cst (gfc_charlen_type_node, 0));
4925 : /* Null the pointer. */
4926 91 : e = gfc_lval_expr_from_sym (proc_sym);
4927 91 : gfc_init_se (&se, NULL);
4928 91 : se.want_pointer = 1;
4929 91 : gfc_conv_expr (&se, e);
4930 91 : gfc_free_expr (e);
4931 91 : tmp = se.expr;
4932 91 : gfc_add_modify (&init, tmp,
4933 91 : fold_convert (TREE_TYPE (se.expr),
4934 : null_pointer_node));
4935 91 : input_location = loc;
4936 :
4937 : /* Pass back the string length on exit. */
4938 91 : tmp = proc_sym->ts.u.cl->backend_decl;
4939 91 : if (TREE_CODE (tmp) != INDIRECT_REF
4940 91 : && proc_sym->ts.u.cl->passed_length)
4941 : {
4942 91 : tmp = proc_sym->ts.u.cl->passed_length;
4943 91 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
4944 182 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
4945 91 : TREE_TYPE (tmp), tmp,
4946 91 : fold_convert
4947 : (TREE_TYPE (tmp),
4948 : proc_sym->ts.u.cl->backend_decl));
4949 : }
4950 : else
4951 : tmp = NULL_TREE;
4952 :
4953 91 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
4954 : }
4955 672 : else if (VAR_P (proc_sym->ts.u.cl->backend_decl))
4956 393 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
4957 : }
4958 : else
4959 36 : gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX);
4960 : }
4961 97015 : else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym))
4962 : {
4963 : /* Nullify explicit return class arrays on entry. */
4964 34 : tree type;
4965 34 : tmp = get_proc_result (proc_sym);
4966 34 : if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp)))
4967 : {
4968 34 : gfc_start_block (&init);
4969 34 : tmp = gfc_class_data_get (tmp);
4970 34 : type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp));
4971 34 : gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0));
4972 34 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4973 : }
4974 : }
4975 :
4976 98702 : sym = (proc_sym->attr.function
4977 98702 : && proc_sym != proc_sym->result) ? proc_sym->result : NULL;
4978 :
4979 7255 : if (sym && !sym->attr.allocatable && !sym->attr.pointer
4980 6630 : && sym->attr.referenced
4981 13788 : && IS_PDT (sym) && !gfc_has_default_initializer (sym->ts.u.derived))
4982 : {
4983 6 : gfc_init_block (&tmpblock);
4984 6 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
4985 : sym->backend_decl,
4986 6 : sym->as ? sym->as->rank : 0,
4987 6 : sym->param_list);
4988 6 : gfc_add_expr_to_block (&tmpblock, tmp);
4989 6 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
4990 : }
4991 :
4992 : /* Initialize the INTENT(OUT) derived type dummy arguments. This
4993 : should be done here so that the offsets and lbounds of arrays
4994 : are available. */
4995 98702 : loc = input_location;
4996 98702 : input_location = gfc_get_location (&proc_sym->declared_at);
4997 98702 : init_intent_out_dt (proc_sym, block);
4998 98702 : input_location = loc;
4999 :
5000 : /* For some reasons, internal procedures point to the parent's
5001 : namespace. Top-level procedure and variables inside BLOCK are fine. */
5002 98702 : gfc_namespace *omp_ns = proc_sym->ns;
5003 98702 : if (proc_sym->ns->proc_name != proc_sym)
5004 199729 : for (omp_ns = proc_sym->ns->contained; omp_ns;
5005 163460 : omp_ns = omp_ns->sibling)
5006 199609 : if (omp_ns->proc_name == proc_sym)
5007 : break;
5008 :
5009 : /* Add 'omp allocate' attribute for gfc_trans_auto_array_allocation and
5010 : unset attr.omp_allocate for 'omp allocate allocator(omp_default_mem_alloc),
5011 : which has the normal codepath except for an invalid-use check in the ME.
5012 : The main processing happens later in this function. */
5013 98702 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5014 98757 : n; n = n->next)
5015 55 : if (!TREE_STATIC (n->sym->backend_decl))
5016 : {
5017 : /* Add empty entries - described and to be filled below. */
5018 36 : tree tmp = build_tree_list (NULL_TREE, NULL_TREE);
5019 36 : TREE_CHAIN (tmp) = build_tree_list (NULL_TREE, NULL_TREE);
5020 36 : DECL_ATTRIBUTES (n->sym->backend_decl)
5021 36 : = tree_cons (get_identifier ("omp allocate"), tmp,
5022 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5023 36 : if (n->u.align == NULL
5024 29 : && n->u2.allocator != NULL
5025 7 : && n->u2.allocator->expr_type == EXPR_CONSTANT
5026 2 : && mpz_cmp_si (n->u2.allocator->value.integer, 1) == 0)
5027 1 : n->sym->attr.omp_allocate = 0;
5028 : }
5029 :
5030 173048 : for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink)
5031 : {
5032 74346 : bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED)
5033 74346 : && (sym->ts.u.derived->attr.alloc_comp
5034 6005 : || gfc_is_finalizable (sym->ts.u.derived,
5035 74346 : NULL));
5036 74346 : if (sym->assoc || sym->attr.vtab)
5037 5029 : continue;
5038 :
5039 : /* Set the vptr of unlimited polymorphic pointer variables so that
5040 : they do not cause segfaults in select type, when the selector
5041 : is an intrinsic type. */
5042 69317 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
5043 1029 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc
5044 1029 : && !sym->attr.dummy && CLASS_DATA (sym)->attr.class_pointer)
5045 : {
5046 308 : gfc_symbol *vtab;
5047 308 : gfc_init_block (&tmpblock);
5048 308 : vtab = gfc_find_vtab (&sym->ts);
5049 308 : if (!vtab->backend_decl)
5050 : {
5051 48 : if (!vtab->attr.referenced)
5052 6 : gfc_set_sym_referenced (vtab);
5053 48 : gfc_get_symbol_decl (vtab);
5054 : }
5055 308 : tmp = gfc_class_vptr_get (sym->backend_decl);
5056 308 : gfc_add_modify (&tmpblock, tmp,
5057 308 : gfc_build_addr_expr (TREE_TYPE (tmp),
5058 : vtab->backend_decl));
5059 308 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5060 : }
5061 :
5062 69317 : if (sym->ts.type == BT_DERIVED
5063 10786 : && sym->ts.u.derived
5064 10786 : && (sym->ts.u.derived->attr.pdt_type || sym->ts.u.derived->attr.pdt_comp))
5065 : {
5066 699 : is_pdt_type = true;
5067 699 : gfc_init_block (&tmpblock);
5068 :
5069 699 : if (!sym->attr.dummy && !sym->attr.pointer)
5070 : {
5071 533 : tmp = gfc_init_default_pdt (sym, true);
5072 533 : if (!sym->attr.allocatable && tmp == NULL_TREE)
5073 : {
5074 399 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
5075 : sym->backend_decl,
5076 399 : sym->as ? sym->as->rank : 0,
5077 399 : sym->param_list);
5078 399 : gfc_add_expr_to_block (&tmpblock, tmp);
5079 : }
5080 102 : else if (tmp != NULL_TREE)
5081 32 : gfc_add_expr_to_block (&tmpblock, tmp);
5082 :
5083 533 : if (!sym->attr.result && !sym->ts.u.derived->attr.alloc_comp)
5084 433 : tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived,
5085 : sym->backend_decl,
5086 433 : sym->as ? sym->as->rank : 0);
5087 : else
5088 : tmp = NULL_TREE;
5089 :
5090 533 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5091 : }
5092 166 : else if (sym->attr.dummy)
5093 : {
5094 62 : tmp = gfc_check_pdt_dummy (sym->ts.u.derived,
5095 : sym->backend_decl,
5096 62 : sym->as ? sym->as->rank : 0,
5097 62 : sym->param_list);
5098 62 : gfc_add_expr_to_block (&tmpblock, tmp);
5099 62 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5100 : }
5101 : }
5102 68618 : else if (IS_CLASS_PDT (sym))
5103 : {
5104 12 : gfc_component *data = CLASS_DATA (sym);
5105 12 : is_pdt_type = true;
5106 12 : gfc_init_block (&tmpblock);
5107 12 : if (!(sym->attr.dummy
5108 12 : || CLASS_DATA (sym)->attr.pointer
5109 12 : || CLASS_DATA (sym)->attr.allocatable))
5110 : {
5111 0 : tmp = gfc_class_data_get (sym->backend_decl);
5112 0 : tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp,
5113 0 : data->as ? data->as->rank : 0,
5114 0 : sym->param_list);
5115 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5116 0 : tmp = gfc_class_data_get (sym->backend_decl);
5117 0 : if (!sym->attr.result)
5118 0 : tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp,
5119 0 : data->as ? data->as->rank : 0);
5120 : else
5121 : tmp = NULL_TREE;
5122 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5123 : }
5124 12 : else if (sym->attr.dummy)
5125 : {
5126 0 : tmp = gfc_class_data_get (sym->backend_decl);
5127 0 : tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp,
5128 0 : data->as ? data->as->rank : 0,
5129 0 : sym->param_list);
5130 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5131 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5132 : }
5133 : }
5134 :
5135 69317 : if (sym->ts.type == BT_CLASS
5136 3845 : && (sym->attr.save || flag_max_stack_var_size == 0)
5137 58 : && CLASS_DATA (sym)->attr.allocatable)
5138 : {
5139 40 : tree vptr;
5140 :
5141 40 : if (UNLIMITED_POLY (sym))
5142 0 : vptr = null_pointer_node;
5143 : else
5144 : {
5145 40 : gfc_symbol *vsym;
5146 40 : vsym = gfc_find_derived_vtab (sym->ts.u.derived);
5147 40 : vptr = gfc_get_symbol_decl (vsym);
5148 40 : vptr = gfc_build_addr_expr (NULL, vptr);
5149 : }
5150 :
5151 40 : if (CLASS_DATA (sym)->attr.dimension
5152 8 : || (CLASS_DATA (sym)->attr.codimension
5153 1 : && flag_coarray != GFC_FCOARRAY_LIB))
5154 : {
5155 33 : tmp = gfc_class_data_get (sym->backend_decl);
5156 33 : tmp = gfc_build_null_descriptor (TREE_TYPE (tmp));
5157 : }
5158 : else
5159 7 : tmp = null_pointer_node;
5160 :
5161 40 : DECL_INITIAL (sym->backend_decl)
5162 40 : = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp);
5163 40 : TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1;
5164 40 : }
5165 69277 : else if ((sym->attr.dimension || sym->attr.codimension
5166 12457 : || (IS_CLASS_COARRAY_OR_ARRAY (sym)
5167 2036 : && !CLASS_DATA (sym)->attr.allocatable)))
5168 : {
5169 57718 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
5170 57718 : symbol_attribute *array_attr;
5171 57718 : gfc_array_spec *as;
5172 57718 : array_type type_of_array;
5173 :
5174 57718 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
5175 57718 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
5176 : /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */
5177 57718 : type_of_array = as->type;
5178 57718 : if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed)
5179 : type_of_array = AS_EXPLICIT;
5180 57647 : switch (type_of_array)
5181 : {
5182 38108 : case AS_EXPLICIT:
5183 38108 : if (sym->attr.dummy || sym->attr.result)
5184 6321 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5185 : /* Allocatable and pointer arrays need to processed
5186 : explicitly. */
5187 31787 : else if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
5188 31787 : || (sym->ts.type == BT_CLASS
5189 0 : && CLASS_DATA (sym)->attr.class_pointer)
5190 31787 : || array_attr->allocatable)
5191 : {
5192 0 : if (TREE_STATIC (sym->backend_decl))
5193 : {
5194 0 : loc = input_location;
5195 0 : input_location = gfc_get_location (&sym->declared_at);
5196 0 : gfc_trans_static_array_pointer (sym);
5197 0 : input_location = loc;
5198 : }
5199 : else
5200 : {
5201 0 : seen_trans_deferred_array = true;
5202 0 : gfc_trans_deferred_array (sym, block);
5203 : }
5204 : }
5205 31787 : else if (sym->attr.codimension
5206 463 : && TREE_STATIC (sym->backend_decl))
5207 : {
5208 402 : gfc_init_block (&tmpblock);
5209 402 : gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl),
5210 : &tmpblock, sym);
5211 402 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5212 : NULL_TREE);
5213 402 : continue;
5214 : }
5215 31385 : else if (sym->attr.codimension && !sym->attr.dimension)
5216 : {
5217 : /* Scalar coarrays do not need array allocation. */
5218 39 : continue;
5219 : }
5220 : else
5221 : {
5222 31346 : loc = input_location;
5223 31346 : input_location = gfc_get_location (&sym->declared_at);
5224 :
5225 31346 : if (alloc_comp_or_fini)
5226 : {
5227 509 : seen_trans_deferred_array = true;
5228 509 : gfc_trans_deferred_array (sym, block);
5229 : }
5230 30837 : else if (sym->ts.type == BT_DERIVED
5231 1755 : && sym->value
5232 541 : && !sym->attr.data
5233 515 : && sym->attr.save == SAVE_NONE)
5234 : {
5235 289 : gfc_start_block (&tmpblock);
5236 289 : gfc_init_default_dt (sym, &tmpblock, false);
5237 289 : gfc_add_init_cleanup (block,
5238 : gfc_finish_block (&tmpblock),
5239 : NULL_TREE);
5240 : }
5241 :
5242 31346 : gfc_trans_auto_array_allocation (sym->backend_decl,
5243 : sym, block);
5244 31346 : input_location = loc;
5245 : }
5246 : break;
5247 :
5248 1521 : case AS_ASSUMED_SIZE:
5249 : /* Must be a dummy parameter. */
5250 1521 : gcc_assert (sym->attr.dummy || as->cp_was_assumed);
5251 :
5252 : /* We should always pass assumed size arrays the g77 way. */
5253 1521 : if (sym->attr.dummy)
5254 1521 : gfc_trans_g77_array (sym, block);
5255 : break;
5256 :
5257 5721 : case AS_ASSUMED_SHAPE:
5258 : /* Must be a dummy parameter. */
5259 5721 : gcc_assert (sym->attr.dummy);
5260 :
5261 5721 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5262 5721 : break;
5263 :
5264 12368 : case AS_ASSUMED_RANK:
5265 12368 : case AS_DEFERRED:
5266 12368 : seen_trans_deferred_array = true;
5267 12368 : gfc_trans_deferred_array (sym, block);
5268 12368 : if (sym->ts.type == BT_CHARACTER && sym->ts.deferred
5269 748 : && sym->attr.result)
5270 : {
5271 32 : gfc_start_block (&init);
5272 32 : loc = input_location;
5273 32 : input_location = gfc_get_location (&sym->declared_at);
5274 32 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5275 32 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5276 : }
5277 : break;
5278 :
5279 0 : default:
5280 0 : gcc_unreachable ();
5281 : }
5282 57277 : if (alloc_comp_or_fini && !seen_trans_deferred_array)
5283 288 : gfc_trans_deferred_array (sym, block);
5284 : }
5285 11559 : else if ((!sym->attr.dummy || sym->ts.deferred)
5286 11363 : && (sym->ts.type == BT_CLASS
5287 2907 : && CLASS_DATA (sym)->attr.class_pointer))
5288 523 : gfc_trans_class_array (sym, block);
5289 11036 : else if ((!sym->attr.dummy || sym->ts.deferred)
5290 10840 : && (sym->attr.allocatable
5291 8510 : || (sym->attr.pointer && sym->attr.result)
5292 8459 : || (sym->ts.type == BT_CLASS
5293 2384 : && CLASS_DATA (sym)->attr.allocatable)))
5294 : {
5295 : /* Ensure that the initialization block may be generated also for
5296 : dummy and result variables when -fno-automatic is specified, which
5297 : sets flag_max_stack_var_size=0. */
5298 4765 : if (!sym->attr.save
5299 4686 : && (flag_max_stack_var_size != 0
5300 3 : || sym->attr.dummy
5301 3 : || sym->attr.result))
5302 : {
5303 4686 : tree descriptor = NULL_TREE;
5304 :
5305 4686 : loc = input_location;
5306 4686 : input_location = gfc_get_location (&sym->declared_at);
5307 4686 : gfc_start_block (&init);
5308 :
5309 4686 : if (sym->ts.type == BT_CHARACTER
5310 987 : && sym->attr.allocatable
5311 963 : && !sym->attr.dimension
5312 963 : && sym->ts.u.cl && sym->ts.u.cl->length
5313 191 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
5314 27 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
5315 :
5316 4686 : if (!sym->attr.pointer)
5317 : {
5318 : /* Nullify and automatic deallocation of allocatable
5319 : scalars. */
5320 4635 : e = gfc_lval_expr_from_sym (sym);
5321 4635 : if (sym->ts.type == BT_CLASS)
5322 2384 : gfc_add_data_component (e);
5323 :
5324 4635 : gfc_init_se (&se, NULL);
5325 4635 : if (sym->ts.type != BT_CLASS
5326 2384 : || sym->ts.u.derived->attr.dimension
5327 2384 : || sym->ts.u.derived->attr.codimension)
5328 : {
5329 2251 : se.want_pointer = 1;
5330 2251 : gfc_conv_expr (&se, e);
5331 : }
5332 2384 : else if (sym->ts.type == BT_CLASS
5333 2384 : && !CLASS_DATA (sym)->attr.dimension
5334 1304 : && !CLASS_DATA (sym)->attr.codimension)
5335 : {
5336 1246 : se.want_pointer = 1;
5337 1246 : gfc_conv_expr (&se, e);
5338 : }
5339 : else
5340 : {
5341 1138 : se.descriptor_only = 1;
5342 1138 : gfc_conv_expr (&se, e);
5343 1138 : descriptor = se.expr;
5344 1138 : se.expr = gfc_conv_descriptor_data_get (se.expr);
5345 : }
5346 4635 : gfc_free_expr (e);
5347 :
5348 4635 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
5349 : {
5350 : /* Nullify when entering the scope. */
5351 4635 : if (sym->ts.type == BT_CLASS
5352 2384 : && (CLASS_DATA (sym)->attr.dimension
5353 1304 : || CLASS_DATA (sym)->attr.codimension))
5354 : {
5355 1138 : stmtblock_t nullify;
5356 1138 : gfc_init_block (&nullify);
5357 1138 : gfc_conv_descriptor_data_set (&nullify, descriptor,
5358 : null_pointer_node);
5359 1138 : tmp = gfc_finish_block (&nullify);
5360 1138 : }
5361 : else
5362 : {
5363 3497 : tree typed_null = fold_convert (TREE_TYPE (se.expr),
5364 : null_pointer_node);
5365 3497 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
5366 3497 : TREE_TYPE (se.expr), se.expr,
5367 : typed_null);
5368 : }
5369 4635 : if (sym->attr.optional)
5370 : {
5371 0 : tree present = gfc_conv_expr_present (sym);
5372 0 : tmp = build3_loc (input_location, COND_EXPR,
5373 : void_type_node, present, tmp,
5374 : build_empty_stmt (input_location));
5375 : }
5376 4635 : gfc_add_expr_to_block (&init, tmp);
5377 : }
5378 : }
5379 :
5380 4686 : if ((sym->attr.dummy || sym->attr.result)
5381 505 : && sym->ts.type == BT_CHARACTER
5382 118 : && sym->ts.deferred
5383 118 : && sym->ts.u.cl->passed_length)
5384 118 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5385 : else
5386 : {
5387 4568 : input_location = loc;
5388 4568 : tmp = NULL_TREE;
5389 : }
5390 :
5391 : /* Initialize descriptor's TKR information. */
5392 4686 : if (sym->ts.type == BT_CLASS)
5393 2384 : gfc_trans_class_array (sym, block);
5394 :
5395 : /* Deallocate when leaving the scope. Nullifying is not
5396 : needed. */
5397 4686 : if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer
5398 4181 : && !sym->ns->proc_name->attr.is_main_program)
5399 : {
5400 1403 : if (sym->ts.type == BT_CLASS
5401 489 : && CLASS_DATA (sym)->attr.codimension)
5402 6 : tmp = gfc_deallocate_with_status (descriptor, NULL_TREE,
5403 : NULL_TREE, NULL_TREE,
5404 : NULL_TREE, true, NULL,
5405 : GFC_CAF_COARRAY_ANALYZE);
5406 : else
5407 : {
5408 1397 : gfc_expr *expr = gfc_lval_expr_from_sym (sym);
5409 1397 : tmp = gfc_deallocate_scalar_with_status (se.expr,
5410 : NULL_TREE,
5411 : NULL_TREE,
5412 : true, expr,
5413 : sym->ts);
5414 1397 : gfc_free_expr (expr);
5415 : }
5416 : }
5417 :
5418 4686 : if (sym->ts.type == BT_CLASS)
5419 : {
5420 : /* Initialize _vptr to declared type. */
5421 2384 : loc = input_location;
5422 2384 : input_location = gfc_get_location (&sym->declared_at);
5423 :
5424 2384 : e = gfc_lval_expr_from_sym (sym);
5425 2384 : gfc_reset_vptr (&init, e);
5426 2384 : gfc_free_expr (e);
5427 2384 : input_location = loc;
5428 : }
5429 :
5430 4686 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5431 : }
5432 : }
5433 6271 : else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred)
5434 : {
5435 244 : tree tmp = NULL;
5436 244 : stmtblock_t init;
5437 :
5438 : /* If we get to here, all that should be left are pointers. */
5439 244 : gcc_assert (sym->attr.pointer);
5440 :
5441 244 : if (sym->attr.dummy)
5442 : {
5443 0 : gfc_start_block (&init);
5444 0 : loc = input_location;
5445 0 : input_location = gfc_get_location (&sym->declared_at);
5446 0 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5447 0 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5448 : }
5449 244 : }
5450 6027 : else if (sym->ts.deferred)
5451 0 : gfc_fatal_error ("Deferred type parameter not yet supported");
5452 6027 : else if (alloc_comp_or_fini)
5453 4679 : gfc_trans_deferred_array (sym, block);
5454 1348 : else if (sym->ts.type == BT_CHARACTER)
5455 : {
5456 696 : loc = input_location;
5457 696 : input_location = gfc_get_location (&sym->declared_at);
5458 696 : if (sym->attr.dummy || sym->attr.result)
5459 342 : gfc_trans_dummy_character (sym, sym->ts.u.cl, block);
5460 : else
5461 354 : gfc_trans_auto_character_variable (sym, block);
5462 696 : input_location = loc;
5463 : }
5464 652 : else if (sym->attr.assign)
5465 : {
5466 64 : loc = input_location;
5467 64 : input_location = gfc_get_location (&sym->declared_at);
5468 64 : gfc_trans_assign_aux_var (sym, block);
5469 64 : input_location = loc;
5470 : }
5471 588 : else if (sym->ts.type == BT_DERIVED
5472 588 : && sym->value
5473 503 : && !sym->attr.data
5474 503 : && sym->attr.save == SAVE_NONE)
5475 : {
5476 470 : gfc_start_block (&tmpblock);
5477 470 : gfc_init_default_dt (sym, &tmpblock, false);
5478 470 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5479 : NULL_TREE);
5480 : }
5481 118 : else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type)
5482 0 : gcc_unreachable ();
5483 : }
5484 :
5485 : /* Handle 'omp allocate'. This has to be after the block above as
5486 : gfc_add_init_cleanup (..., init, ...) puts 'init' of later calls
5487 : before earlier calls. The code is a bit more complex as gfortran does
5488 : not really work with bind expressions / BIND_EXPR_VARS properly, i.e.
5489 : gimplify_bind_expr needs some help for placing the GOMP_alloc. Thus,
5490 : we pass on the location of the allocate-assignment expression and,
5491 : if the size is not constant, the size variable if Fortran computes this
5492 : differently. We also might add an expression location after which the
5493 : code has to be added, e.g. for character len expressions, which affect
5494 : the UNIT_SIZE. */
5495 98702 : gfc_expr *last_allocator = NULL;
5496 98702 : if (omp_ns && omp_ns->omp_allocate)
5497 : {
5498 29 : if (!block->init || TREE_CODE (block->init) != STATEMENT_LIST)
5499 : {
5500 22 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5501 22 : append_to_statement_list (tmp, &block->init);
5502 : }
5503 29 : if (!block->cleanup || TREE_CODE (block->cleanup) != STATEMENT_LIST)
5504 : {
5505 29 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5506 29 : append_to_statement_list (tmp, &block->cleanup);
5507 : }
5508 : }
5509 98702 : tree init_stmtlist = block->init;
5510 98702 : tree cleanup_stmtlist = block->cleanup;
5511 98702 : se.expr = NULL_TREE;
5512 98702 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5513 98757 : n; n = n->next)
5514 : {
5515 55 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align) : NULL_TREE);
5516 55 : if (last_allocator != n->u2.allocator)
5517 : {
5518 24 : location_t loc = input_location;
5519 24 : gfc_init_se (&se, NULL);
5520 24 : if (n->u2.allocator)
5521 : {
5522 22 : input_location = gfc_get_location (&n->u2.allocator->where);
5523 22 : gfc_conv_expr (&se, n->u2.allocator);
5524 : }
5525 : /* We need to evalulate non-constants - also to find the location
5526 : after which the GOMP_alloc has to be added to - also as BLOCK
5527 : does not yield a new BIND_EXPR_BODY. */
5528 24 : if (n->u2.allocator
5529 : && (!(CONSTANT_CLASS_P (se.expr) && DECL_P (se.expr))
5530 : || se.pre.head || se.post.head))
5531 : {
5532 22 : stmtblock_t tmpblock;
5533 22 : gfc_init_block (&tmpblock);
5534 22 : se.expr = gfc_evaluate_now (se.expr, &tmpblock);
5535 : /* First post then pre because the new code is inserted
5536 : at the top. */
5537 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.post), NULL);
5538 22 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5539 : NULL);
5540 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.pre), NULL);
5541 : }
5542 24 : last_allocator = n->u2.allocator;
5543 24 : input_location = loc;
5544 : }
5545 55 : if (TREE_STATIC (n->sym->backend_decl))
5546 19 : continue;
5547 : /* 'omp allocate( {purpose: allocator, value: align},
5548 : {purpose: init-stmtlist, value: cleanup-stmtlist},
5549 : {purpose: size-var, value: last-size-expr} )
5550 : where init-stmt/cleanup-stmt is the STATEMENT list to find the
5551 : try-final block; last-size-expr is to find the location after
5552 : which to add the code and 'size-var' is for the proper size, cf.
5553 : gfc_trans_auto_array_allocation - either or both of the latter
5554 : can be NULL. */
5555 36 : tree tmp = lookup_attribute ("omp allocate",
5556 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5557 36 : tmp = TREE_VALUE (tmp);
5558 36 : TREE_PURPOSE (tmp) = se.expr;
5559 36 : TREE_VALUE (tmp) = align;
5560 36 : TREE_PURPOSE (TREE_CHAIN (tmp)) = init_stmtlist;
5561 36 : TREE_VALUE (TREE_CHAIN (tmp)) = cleanup_stmtlist;
5562 : }
5563 :
5564 98702 : gfc_init_block (&tmpblock);
5565 :
5566 199996 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
5567 : {
5568 101294 : if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER
5569 7774 : && f->sym->ts.u.cl->backend_decl)
5570 : {
5571 7772 : if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL)
5572 4160 : gfc_trans_vla_type_sizes (f->sym, &tmpblock);
5573 : }
5574 : }
5575 :
5576 101572 : if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER
5577 100152 : && current_fake_result_decl != NULL)
5578 : {
5579 832 : gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL);
5580 832 : if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL)
5581 69 : gfc_trans_vla_type_sizes (proc_sym, &tmpblock);
5582 : }
5583 :
5584 98702 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE);
5585 98702 : }
5586 :
5587 :
5588 : struct module_hasher : ggc_ptr_hash<module_htab_entry>
5589 : {
5590 : typedef const char *compare_type;
5591 :
5592 26544 : static hashval_t hash (module_htab_entry *s)
5593 : {
5594 26544 : return htab_hash_string (s->name);
5595 : }
5596 :
5597 : static bool
5598 31499 : equal (module_htab_entry *a, const char *b)
5599 : {
5600 31499 : return !strcmp (a->name, b);
5601 : }
5602 : };
5603 :
5604 : static GTY (()) hash_table<module_hasher> *module_htab;
5605 :
5606 : /* Hash and equality functions for module_htab's decls. */
5607 :
5608 : hashval_t
5609 177065 : module_decl_hasher::hash (tree t)
5610 : {
5611 177065 : const_tree n = DECL_NAME (t);
5612 177065 : if (n == NULL_TREE)
5613 25903 : n = TYPE_NAME (TREE_TYPE (t));
5614 177065 : return htab_hash_string (IDENTIFIER_POINTER (n));
5615 : }
5616 :
5617 : bool
5618 184358 : module_decl_hasher::equal (tree t1, const char *x2)
5619 : {
5620 184358 : const_tree n1 = DECL_NAME (t1);
5621 184358 : if (n1 == NULL_TREE)
5622 26207 : n1 = TYPE_NAME (TREE_TYPE (t1));
5623 184358 : return strcmp (IDENTIFIER_POINTER (n1), x2) == 0;
5624 : }
5625 :
5626 : struct module_htab_entry *
5627 29761 : gfc_find_module (const char *name)
5628 : {
5629 29761 : if (! module_htab)
5630 8107 : module_htab = hash_table<module_hasher>::create_ggc (10);
5631 :
5632 29761 : module_htab_entry **slot
5633 29761 : = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT);
5634 29761 : if (*slot == NULL)
5635 : {
5636 10342 : module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> ();
5637 :
5638 10342 : entry->name = gfc_get_string ("%s", name);
5639 10342 : entry->decls = hash_table<module_decl_hasher>::create_ggc (10);
5640 10342 : *slot = entry;
5641 : }
5642 29761 : return *slot;
5643 : }
5644 :
5645 : void
5646 53716 : gfc_module_add_decl (struct module_htab_entry *entry, tree decl)
5647 : {
5648 53716 : const char *name;
5649 :
5650 53716 : if (DECL_NAME (decl))
5651 45673 : name = IDENTIFIER_POINTER (DECL_NAME (decl));
5652 : else
5653 : {
5654 8043 : gcc_assert (TREE_CODE (decl) == TYPE_DECL);
5655 8043 : name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl)));
5656 : }
5657 53716 : tree *slot
5658 53716 : = entry->decls->find_slot_with_hash (name, htab_hash_string (name),
5659 : INSERT);
5660 53716 : if (*slot == NULL)
5661 53704 : *slot = decl;
5662 53716 : }
5663 :
5664 :
5665 : /* Generate debugging symbols for namelists. This function must come after
5666 : generate_local_decl to ensure that the variables in the namelist are
5667 : already declared. */
5668 :
5669 : static tree
5670 763 : generate_namelist_decl (gfc_symbol * sym)
5671 : {
5672 763 : gfc_namelist *nml;
5673 763 : tree decl;
5674 763 : vec<constructor_elt, va_gc> *nml_decls = NULL;
5675 :
5676 763 : gcc_assert (sym->attr.flavor == FL_NAMELIST);
5677 2785 : for (nml = sym->namelist; nml; nml = nml->next)
5678 : {
5679 2022 : if (nml->sym->backend_decl == NULL_TREE)
5680 : {
5681 220 : nml->sym->attr.referenced = 1;
5682 220 : nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym);
5683 : }
5684 2022 : DECL_IGNORED_P (nml->sym->backend_decl) = 0;
5685 2022 : CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl);
5686 : }
5687 :
5688 763 : decl = make_node (NAMELIST_DECL);
5689 763 : TREE_TYPE (decl) = void_type_node;
5690 763 : NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls);
5691 763 : DECL_NAME (decl) = get_identifier (sym->name);
5692 763 : return decl;
5693 : }
5694 :
5695 :
5696 : /* Output an initialized decl for a module variable. */
5697 :
5698 : static void
5699 143021 : gfc_create_module_variable (gfc_symbol * sym)
5700 : {
5701 143021 : tree decl;
5702 :
5703 : /* Module functions with alternate entries are dealt with later and
5704 : would get caught by the next condition. */
5705 143021 : if (sym->attr.entry)
5706 : return;
5707 :
5708 : /* Make sure we convert the types of the derived types from iso_c_binding
5709 : into (void *). */
5710 142540 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
5711 31290 : && sym->ts.type == BT_DERIVED)
5712 1448 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
5713 :
5714 142540 : if (gfc_fl_struct (sym->attr.flavor)
5715 23076 : && sym->backend_decl
5716 8077 : && TREE_CODE (sym->backend_decl) == RECORD_TYPE)
5717 : {
5718 8043 : decl = sym->backend_decl;
5719 8043 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5720 :
5721 8043 : if (!sym->attr.use_assoc && !sym->attr.used_in_submodule)
5722 : {
5723 7946 : gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE
5724 : || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl);
5725 7946 : gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE
5726 : || DECL_CONTEXT (TYPE_STUB_DECL (decl))
5727 : == sym->ns->proc_name->backend_decl);
5728 : }
5729 8043 : TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5730 8043 : DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl;
5731 8043 : gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl));
5732 : }
5733 :
5734 : /* Only output variables, procedure pointers and array valued,
5735 : or derived type, parameters. */
5736 142540 : if (sym->attr.flavor != FL_VARIABLE
5737 120072 : && !(sym->attr.flavor == FL_PARAMETER
5738 39406 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
5739 119032 : && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer))
5740 : return;
5741 :
5742 23581 : if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl)
5743 : {
5744 461 : decl = sym->backend_decl;
5745 461 : gcc_assert (DECL_FILE_SCOPE_P (decl));
5746 461 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5747 461 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5748 461 : gfc_module_add_decl (cur_module, decl);
5749 : }
5750 :
5751 : /* Don't generate variables from other modules. Variables from
5752 : COMMONs and Cray pointees will already have been generated. */
5753 23581 : if (sym->attr.use_assoc || sym->attr.used_in_submodule
5754 19877 : || sym->attr.in_common || sym->attr.cray_pointee)
5755 : return;
5756 :
5757 : /* Equivalenced variables arrive here after creation. */
5758 19558 : if (sym->backend_decl
5759 581 : && (sym->equiv_built || sym->attr.in_equivalence))
5760 : return;
5761 :
5762 19471 : if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target)
5763 0 : gfc_internal_error ("backend decl for module variable %qs already exists",
5764 : sym->name);
5765 :
5766 19471 : if (sym->module && !sym->attr.result && !sym->attr.dummy
5767 19471 : && (sym->attr.access == ACCESS_UNKNOWN
5768 3726 : && (sym->ns->default_access == ACCESS_PRIVATE
5769 3436 : || (sym->ns->default_access == ACCESS_UNKNOWN
5770 3422 : && flag_module_private))))
5771 291 : sym->attr.access = ACCESS_PRIVATE;
5772 :
5773 19471 : if (warn_unused_variable && !sym->attr.referenced
5774 138 : && sym->attr.access == ACCESS_PRIVATE)
5775 3 : gfc_warning (OPT_Wunused_value,
5776 : "Unused PRIVATE module variable %qs declared at %L",
5777 : sym->name, &sym->declared_at);
5778 :
5779 : /* We always want module variables to be created. */
5780 19471 : sym->attr.referenced = 1;
5781 : /* Create the decl. */
5782 19471 : decl = gfc_get_symbol_decl (sym);
5783 :
5784 : /* Create the variable. */
5785 19471 : pushdecl (decl);
5786 19471 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE
5787 : || ((sym->ns->parent->proc_name->attr.flavor == FL_MODULE
5788 : || sym->ns->parent->proc_name->attr.flavor == FL_PROCEDURE)
5789 : && sym->fn_result_spec));
5790 19471 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5791 19471 : rest_of_decl_compilation (decl, 1, 0);
5792 19471 : gfc_module_add_decl (cur_module, decl);
5793 :
5794 : /* Also add length of strings. */
5795 19471 : if (sym->ts.type == BT_CHARACTER)
5796 : {
5797 400 : tree length;
5798 :
5799 400 : length = sym->ts.u.cl->backend_decl;
5800 400 : gcc_assert (length || sym->attr.proc_pointer);
5801 399 : if (length && !INTEGER_CST_P (length))
5802 : {
5803 54 : pushdecl (length);
5804 54 : rest_of_decl_compilation (length, 1, 0);
5805 : }
5806 : }
5807 :
5808 19471 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
5809 35 : && sym->attr.referenced && !sym->attr.use_assoc)
5810 35 : has_coarray_vars_or_accessors = true;
5811 : }
5812 :
5813 : /* Emit debug information for USE statements. */
5814 :
5815 : static void
5816 93817 : gfc_trans_use_stmts (gfc_namespace * ns)
5817 : {
5818 93817 : gfc_use_list *use_stmt;
5819 105418 : for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next)
5820 : {
5821 11601 : struct module_htab_entry *entry
5822 11601 : = gfc_find_module (use_stmt->module_name);
5823 11601 : gfc_use_rename *rent;
5824 :
5825 11601 : if (entry->namespace_decl == NULL)
5826 : {
5827 1263 : entry->namespace_decl
5828 1263 : = build_decl (input_location,
5829 : NAMESPACE_DECL,
5830 : get_identifier (use_stmt->module_name),
5831 : void_type_node);
5832 1263 : DECL_EXTERNAL (entry->namespace_decl) = 1;
5833 : }
5834 11601 : input_location = gfc_get_location (&use_stmt->where);
5835 11601 : if (!use_stmt->only_flag)
5836 10052 : (*debug_hooks->imported_module_or_decl) (entry->namespace_decl,
5837 : NULL_TREE,
5838 10052 : ns->proc_name->backend_decl,
5839 : false, false);
5840 14214 : for (rent = use_stmt->rename; rent; rent = rent->next)
5841 : {
5842 2613 : tree decl, local_name;
5843 :
5844 2613 : if (rent->op != INTRINSIC_NONE)
5845 104 : continue;
5846 :
5847 2509 : hashval_t hash = htab_hash_string (rent->use_name);
5848 2509 : tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash,
5849 : INSERT);
5850 2509 : if (*slot == NULL)
5851 : {
5852 1403 : gfc_symtree *st;
5853 :
5854 1403 : st = gfc_find_symtree (ns->sym_root,
5855 1403 : rent->local_name[0]
5856 : ? rent->local_name : rent->use_name);
5857 :
5858 : /* The following can happen if a derived type is renamed. */
5859 1403 : if (!st)
5860 : {
5861 0 : char *name;
5862 0 : name = xstrdup (rent->local_name[0]
5863 : ? rent->local_name : rent->use_name);
5864 0 : name[0] = (char) TOUPPER ((unsigned char) name[0]);
5865 0 : st = gfc_find_symtree (ns->sym_root, name);
5866 0 : free (name);
5867 0 : gcc_assert (st);
5868 : }
5869 :
5870 : /* Sometimes, generic interfaces wind up being over-ruled by a
5871 : local symbol (see PR41062). */
5872 1403 : if (!st->n.sym->attr.use_assoc)
5873 : {
5874 2 : *slot = error_mark_node;
5875 2 : entry->decls->clear_slot (slot);
5876 2 : continue;
5877 : }
5878 :
5879 1401 : if (st->n.sym->backend_decl
5880 167 : && DECL_P (st->n.sym->backend_decl)
5881 165 : && st->n.sym->module
5882 165 : && strcmp (st->n.sym->module, use_stmt->module_name) == 0)
5883 : {
5884 156 : gcc_assert (DECL_EXTERNAL (entry->namespace_decl)
5885 : || !VAR_P (st->n.sym->backend_decl));
5886 156 : decl = copy_node (st->n.sym->backend_decl);
5887 156 : DECL_CONTEXT (decl) = entry->namespace_decl;
5888 156 : DECL_EXTERNAL (decl) = 1;
5889 156 : DECL_IGNORED_P (decl) = 0;
5890 156 : DECL_INITIAL (decl) = NULL_TREE;
5891 : }
5892 1245 : else if (st->n.sym->attr.flavor == FL_NAMELIST
5893 0 : && st->n.sym->attr.use_only
5894 0 : && st->n.sym->module
5895 0 : && strcmp (st->n.sym->module, use_stmt->module_name)
5896 : == 0)
5897 : {
5898 0 : decl = generate_namelist_decl (st->n.sym);
5899 0 : DECL_CONTEXT (decl) = entry->namespace_decl;
5900 0 : DECL_EXTERNAL (decl) = 1;
5901 0 : DECL_IGNORED_P (decl) = 0;
5902 0 : DECL_INITIAL (decl) = NULL_TREE;
5903 : }
5904 : else
5905 : {
5906 1245 : *slot = error_mark_node;
5907 1245 : entry->decls->clear_slot (slot);
5908 1245 : continue;
5909 : }
5910 156 : *slot = decl;
5911 : }
5912 1262 : decl = (tree) *slot;
5913 1262 : if (rent->local_name[0])
5914 198 : local_name = get_identifier (rent->local_name);
5915 : else
5916 : local_name = NULL_TREE;
5917 1262 : input_location = gfc_get_location (&rent->where);
5918 1262 : (*debug_hooks->imported_module_or_decl) (decl, local_name,
5919 1262 : ns->proc_name->backend_decl,
5920 1262 : !use_stmt->only_flag,
5921 : false);
5922 : }
5923 : }
5924 93817 : }
5925 :
5926 :
5927 : /* Return true if expr is a constant initializer that gfc_conv_initializer
5928 : will handle. */
5929 :
5930 : static bool
5931 23173 : check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array,
5932 : bool pointer)
5933 : {
5934 23173 : gfc_constructor *c;
5935 23173 : gfc_component *cm;
5936 :
5937 23173 : if (pointer)
5938 : return true;
5939 23169 : else if (array)
5940 : {
5941 2579 : if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL)
5942 : return true;
5943 2550 : else if (expr->expr_type == EXPR_STRUCTURE)
5944 12 : return check_constant_initializer (expr, ts, false, false);
5945 2538 : else if (expr->expr_type != EXPR_ARRAY)
5946 : return false;
5947 2538 : for (c = gfc_constructor_first (expr->value.constructor);
5948 134061 : c; c = gfc_constructor_next (c))
5949 : {
5950 131523 : if (c->iterator)
5951 : return false;
5952 131523 : if (c->expr->expr_type == EXPR_STRUCTURE)
5953 : {
5954 284 : if (!check_constant_initializer (c->expr, ts, false, false))
5955 : return false;
5956 : }
5957 131239 : else if (c->expr->expr_type != EXPR_CONSTANT)
5958 : return false;
5959 : }
5960 : return true;
5961 : }
5962 20590 : else switch (ts->type)
5963 : {
5964 441 : case_bt_struct:
5965 441 : if (expr->expr_type != EXPR_STRUCTURE)
5966 : return false;
5967 441 : cm = expr->ts.u.derived->components;
5968 441 : for (c = gfc_constructor_first (expr->value.constructor);
5969 1005 : c; c = gfc_constructor_next (c), cm = cm->next)
5970 : {
5971 572 : if (!c->expr || cm->attr.allocatable)
5972 14 : continue;
5973 558 : if (!check_constant_initializer (c->expr, &cm->ts,
5974 : cm->attr.dimension,
5975 : cm->attr.pointer))
5976 : return false;
5977 : }
5978 : return true;
5979 20149 : default:
5980 20149 : return expr->expr_type == EXPR_CONSTANT;
5981 : }
5982 : }
5983 :
5984 : /* Emit debug info for parameters and unreferenced variables with
5985 : initializers. */
5986 :
5987 : static void
5988 1205391 : gfc_emit_parameter_debug_info (gfc_symbol *sym)
5989 : {
5990 1205391 : tree decl;
5991 :
5992 1205391 : if (sym->attr.flavor != FL_PARAMETER
5993 958393 : && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced))
5994 : return;
5995 :
5996 285632 : if (sym->backend_decl != NULL
5997 263737 : || sym->value == NULL
5998 234658 : || sym->attr.use_assoc
5999 22379 : || sym->attr.dummy
6000 22379 : || sym->attr.result
6001 22379 : || sym->attr.function
6002 22379 : || sym->attr.intrinsic
6003 22379 : || sym->attr.pointer
6004 22369 : || sym->attr.allocatable
6005 22369 : || sym->attr.cray_pointee
6006 22369 : || sym->attr.threadprivate
6007 22368 : || sym->attr.is_bind_c
6008 22368 : || sym->attr.subref_array_pointer
6009 22368 : || sym->attr.assign)
6010 : return;
6011 :
6012 22368 : if (sym->ts.type == BT_CHARACTER)
6013 : {
6014 1340 : gfc_conv_const_charlen (sym->ts.u.cl);
6015 1340 : if (sym->ts.u.cl->backend_decl == NULL
6016 1340 : || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST)
6017 : return;
6018 : }
6019 21028 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp)
6020 : return;
6021 :
6022 22319 : if (sym->as)
6023 : {
6024 2513 : int n;
6025 :
6026 2513 : if (sym->as->type != AS_EXPLICIT)
6027 : return;
6028 5668 : for (n = 0; n < sym->as->rank; n++)
6029 3155 : if (sym->as->lower[n]->expr_type != EXPR_CONSTANT
6030 3155 : || sym->as->upper[n] == NULL
6031 3155 : || sym->as->upper[n]->expr_type != EXPR_CONSTANT)
6032 : return;
6033 : }
6034 :
6035 22319 : if (!check_constant_initializer (sym->value, &sym->ts,
6036 22319 : sym->attr.dimension, false))
6037 : return;
6038 :
6039 22310 : if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension)
6040 : return;
6041 :
6042 : /* Create the decl for the variable or constant. */
6043 44620 : decl = build_decl (input_location,
6044 22310 : sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL,
6045 : gfc_sym_identifier (sym), gfc_sym_type (sym));
6046 22310 : if (sym->attr.flavor == FL_PARAMETER)
6047 22073 : TREE_READONLY (decl) = 1;
6048 22310 : gfc_set_decl_location (decl, &sym->declared_at);
6049 22310 : if (sym->attr.dimension)
6050 2513 : GFC_DECL_PACKED_ARRAY (decl) = 1;
6051 22310 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6052 22310 : TREE_STATIC (decl) = 1;
6053 22310 : TREE_USED (decl) = 1;
6054 22310 : if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL)
6055 2501 : TREE_PUBLIC (decl) = 1;
6056 22310 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
6057 22310 : TREE_TYPE (decl),
6058 22310 : sym->attr.dimension,
6059 : false, false);
6060 22310 : debug_hooks->early_global_decl (decl);
6061 : }
6062 :
6063 :
6064 : static void
6065 6735 : generate_coarray_sym_init (gfc_symbol *sym)
6066 : {
6067 6735 : tree tmp, size, decl, token, desc;
6068 6735 : bool is_lock_type, is_event_type;
6069 6735 : int reg_type;
6070 6735 : gfc_se se;
6071 6735 : symbol_attribute attr;
6072 :
6073 6735 : if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension
6074 401 : || sym->attr.use_assoc || !sym->attr.referenced
6075 397 : || sym->attr.associate_var
6076 346 : || sym->attr.select_type_temporary)
6077 6389 : return;
6078 :
6079 346 : decl = sym->backend_decl;
6080 346 : TREE_USED(decl) = 1;
6081 346 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl)));
6082 :
6083 692 : is_lock_type = sym->ts.type == BT_DERIVED
6084 154 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6085 380 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE;
6086 :
6087 692 : is_event_type = sym->ts.type == BT_DERIVED
6088 154 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6089 380 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE;
6090 :
6091 : /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108
6092 : to make sure the variable is not optimized away. */
6093 346 : DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1;
6094 :
6095 : /* For lock types, we pass the array size as only the library knows the
6096 : size of the variable. */
6097 346 : if (is_lock_type || is_event_type)
6098 34 : size = gfc_index_one_node;
6099 : else
6100 312 : size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl)));
6101 :
6102 : /* Ensure that we do not have size=0 for zero-sized arrays. */
6103 346 : size = fold_build2_loc (input_location, MAX_EXPR, size_type_node,
6104 : fold_convert (size_type_node, size),
6105 : build_int_cst (size_type_node, 1));
6106 :
6107 346 : if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl)))
6108 : {
6109 109 : tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl));
6110 109 : size = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
6111 : fold_convert (size_type_node, tmp), size);
6112 : }
6113 :
6114 346 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE);
6115 1038 : token = gfc_build_addr_expr (ppvoid_type_node,
6116 346 : GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl)));
6117 346 : if (is_lock_type)
6118 29 : reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC;
6119 317 : else if (is_event_type)
6120 : reg_type = GFC_CAF_EVENT_STATIC;
6121 : else
6122 312 : reg_type = GFC_CAF_COARRAY_STATIC;
6123 :
6124 : /* Compile the symbol attribute. */
6125 346 : if (sym->ts.type == BT_CLASS)
6126 : {
6127 0 : attr = CLASS_DATA (sym)->attr;
6128 : /* The pointer attribute is always set on classes, overwrite it with the
6129 : class_pointer attribute, which denotes the pointer for classes. */
6130 0 : attr.pointer = attr.class_pointer;
6131 : }
6132 : else
6133 346 : attr = sym->attr;
6134 346 : gfc_init_se (&se, NULL);
6135 346 : desc = gfc_conv_scalar_to_descriptor (&se, decl, attr);
6136 346 : gfc_add_block_to_block (&caf_init_block, &se.pre);
6137 :
6138 346 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size,
6139 346 : build_int_cst (integer_type_node, reg_type),
6140 : token, gfc_build_addr_expr (pvoid_type_node, desc),
6141 : null_pointer_node, /* stat. */
6142 : null_pointer_node, /* errgmsg. */
6143 : build_zero_cst (size_type_node)); /* errmsg_len. */
6144 346 : gfc_add_expr_to_block (&caf_init_block, tmp);
6145 346 : gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl),
6146 : gfc_conv_descriptor_data_get (desc)));
6147 :
6148 : /* Handle "static" initializer. */
6149 346 : if (sym->value)
6150 : {
6151 110 : if (sym->value->expr_type == EXPR_ARRAY)
6152 : {
6153 12 : gfc_constructor *c, *cnext;
6154 :
6155 : /* Test if the array has more than one element. */
6156 12 : c = gfc_constructor_first (sym->value->value.constructor);
6157 12 : gcc_assert (c); /* Empty constructor should not happen here. */
6158 12 : cnext = gfc_constructor_next (c);
6159 :
6160 12 : if (cnext)
6161 : {
6162 : /* An EXPR_ARRAY with a rank > 1 here has to come from a
6163 : DATA statement. Set its rank here as not to confuse
6164 : the following steps. */
6165 11 : sym->value->rank = 1;
6166 : }
6167 : else
6168 : {
6169 : /* There is only a single value in the constructor, use
6170 : it directly for the assignment. */
6171 1 : gfc_expr *new_expr;
6172 1 : new_expr = gfc_copy_expr (c->expr);
6173 1 : gfc_free_expr (sym->value);
6174 1 : sym->value = new_expr;
6175 : }
6176 : }
6177 :
6178 110 : sym->attr.pointer = 1;
6179 110 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value,
6180 : true, false);
6181 110 : sym->attr.pointer = 0;
6182 110 : gfc_add_expr_to_block (&caf_init_block, tmp);
6183 : }
6184 236 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp)
6185 : {
6186 32 : tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as
6187 : ? sym->as->rank : 0,
6188 : GFC_STRUCTURE_CAF_MODE_IN_COARRAY);
6189 32 : gfc_add_expr_to_block (&caf_init_block, tmp);
6190 : }
6191 : }
6192 :
6193 : struct caf_accessor
6194 : {
6195 : struct caf_accessor *next;
6196 : gfc_expr *hash, *fdecl;
6197 : };
6198 :
6199 : static struct caf_accessor *caf_accessor_head = NULL;
6200 :
6201 : void
6202 1494 : gfc_add_caf_accessor (gfc_expr *h, gfc_expr *f)
6203 : {
6204 1494 : struct caf_accessor *n = XCNEW (struct caf_accessor);
6205 1494 : n->next = caf_accessor_head;
6206 1494 : n->hash = h;
6207 1494 : n->fdecl = f;
6208 1494 : caf_accessor_head = n;
6209 1494 : }
6210 :
6211 : void
6212 463 : create_caf_accessor_register (stmtblock_t *block)
6213 : {
6214 463 : gfc_se se;
6215 463 : tree hash, fdecl;
6216 463 : gfc_init_se (&se, NULL);
6217 1897 : for (struct caf_accessor *curr = caf_accessor_head; curr;)
6218 : {
6219 1434 : gfc_conv_expr (&se, curr->hash);
6220 1434 : hash = se.expr;
6221 1434 : gfc_conv_expr (&se, curr->fdecl);
6222 1434 : fdecl = se.expr;
6223 1434 : TREE_USED (fdecl) = 1;
6224 1434 : TREE_STATIC (fdecl) = 1;
6225 1434 : gcc_assert (FUNCTION_POINTER_TYPE_P (TREE_TYPE (fdecl)));
6226 1434 : gfc_add_expr_to_block (
6227 : block, build_call_expr (gfor_fndecl_caf_register_accessor, 2, hash,
6228 : /*gfc_build_addr_expr (NULL_TREE,*/ fdecl));
6229 1434 : curr = curr->next;
6230 1434 : free (caf_accessor_head);
6231 1434 : caf_accessor_head = curr;
6232 : }
6233 463 : gfc_add_expr_to_block (
6234 : block, build_call_expr (gfor_fndecl_caf_register_accessors_finish, 0));
6235 463 : }
6236 :
6237 : /* Generate constructor function to initialize static, nonallocatable
6238 : coarrays. */
6239 :
6240 : static void
6241 463 : generate_coarray_init (gfc_namespace *ns)
6242 : {
6243 463 : tree fndecl, tmp, decl, save_fn_decl;
6244 :
6245 463 : save_fn_decl = current_function_decl;
6246 463 : push_function_context ();
6247 :
6248 463 : tmp = build_function_type_list (void_type_node, NULL_TREE);
6249 463 : fndecl = build_decl (input_location, FUNCTION_DECL,
6250 : create_tmp_var_name ("_caf_init"), tmp);
6251 :
6252 463 : DECL_STATIC_CONSTRUCTOR (fndecl) = 1;
6253 463 : SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY);
6254 :
6255 463 : decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node);
6256 463 : DECL_ARTIFICIAL (decl) = 1;
6257 463 : DECL_IGNORED_P (decl) = 1;
6258 463 : DECL_CONTEXT (decl) = fndecl;
6259 463 : DECL_RESULT (fndecl) = decl;
6260 :
6261 463 : pushdecl (fndecl);
6262 463 : current_function_decl = fndecl;
6263 463 : announce_function (fndecl);
6264 :
6265 463 : rest_of_decl_compilation (fndecl, 0, 0);
6266 463 : make_decl_rtl (fndecl);
6267 463 : allocate_struct_function (fndecl, false);
6268 :
6269 463 : pushlevel ();
6270 463 : gfc_init_block (&caf_init_block);
6271 :
6272 463 : create_caf_accessor_register (&caf_init_block);
6273 :
6274 463 : gfc_traverse_ns (ns, generate_coarray_sym_init);
6275 :
6276 463 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block);
6277 463 : decl = getdecls ();
6278 :
6279 463 : poplevel (1, 1);
6280 463 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
6281 :
6282 926 : DECL_SAVED_TREE (fndecl)
6283 926 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
6284 926 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
6285 463 : dump_function (TDI_original, fndecl);
6286 :
6287 463 : cfun->function_end_locus = input_location;
6288 463 : set_cfun (NULL);
6289 :
6290 463 : if (decl_function_context (fndecl))
6291 443 : (void) cgraph_node::create (fndecl);
6292 : else
6293 20 : cgraph_node::finalize_function (fndecl, true);
6294 :
6295 463 : pop_function_context ();
6296 463 : current_function_decl = save_fn_decl;
6297 463 : }
6298 :
6299 :
6300 : static void
6301 143021 : create_module_nml_decl (gfc_symbol *sym)
6302 : {
6303 143021 : if (sym->attr.flavor == FL_NAMELIST)
6304 : {
6305 45 : tree decl = generate_namelist_decl (sym);
6306 45 : pushdecl (decl);
6307 45 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
6308 45 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6309 45 : rest_of_decl_compilation (decl, 1, 0);
6310 45 : gfc_module_add_decl (cur_module, decl);
6311 : }
6312 143021 : }
6313 :
6314 : static void
6315 267728 : gfc_handle_omp_declare_variant (gfc_symbol * sym)
6316 : {
6317 267728 : if (sym->attr.external
6318 86798 : && sym->formal_ns
6319 82968 : && sym->formal_ns->omp_declare_variant)
6320 : {
6321 26 : gfc_namespace *ns = gfc_current_ns;
6322 26 : gfc_current_ns = sym->ns;
6323 26 : gfc_get_symbol_decl (sym);
6324 26 : gfc_current_ns = ns;
6325 : }
6326 267728 : }
6327 :
6328 : /* Generate all the required code for module variables. */
6329 :
6330 : void
6331 9079 : gfc_generate_module_vars (gfc_namespace * ns)
6332 : {
6333 9079 : module_namespace = ns;
6334 9079 : cur_module = gfc_find_module (ns->proc_name->name);
6335 :
6336 : /* Check if the frontend left the namespace in a reasonable state. */
6337 9079 : gcc_assert (ns->proc_name && !ns->proc_name->tlink);
6338 :
6339 : /* Generate COMMON blocks. */
6340 9079 : gfc_trans_common (ns);
6341 :
6342 9079 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
6343 :
6344 : /* Create decls for all the module variables. */
6345 9079 : gfc_traverse_ns (ns, gfc_create_module_variable);
6346 9079 : gfc_traverse_ns (ns, create_module_nml_decl);
6347 :
6348 9079 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
6349 20 : generate_coarray_init (ns);
6350 :
6351 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
6352 : especially as some late diagnostic is only done on tree level. */
6353 9079 : if (flag_openmp)
6354 1073 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
6355 :
6356 9079 : cur_module = NULL;
6357 :
6358 9079 : gfc_trans_use_stmts (ns);
6359 9079 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
6360 9079 : }
6361 :
6362 :
6363 : static void
6364 84738 : gfc_generate_contained_functions (gfc_namespace * parent)
6365 : {
6366 84738 : gfc_namespace *ns;
6367 :
6368 : /* We create all the prototypes before generating any code. */
6369 107718 : for (ns = parent->contained; ns; ns = ns->sibling)
6370 : {
6371 : /* Skip namespaces from used modules. */
6372 22980 : if (ns->parent != parent)
6373 0 : continue;
6374 :
6375 22980 : gfc_create_function_decl (ns, false);
6376 : }
6377 :
6378 107718 : for (ns = parent->contained; ns; ns = ns->sibling)
6379 : {
6380 : /* Skip namespaces from used modules. */
6381 22980 : if (ns->parent != parent)
6382 0 : continue;
6383 :
6384 22980 : gfc_generate_function_code (ns);
6385 : }
6386 84738 : }
6387 :
6388 :
6389 : /* Drill down through expressions for the array specification bounds and
6390 : character length calling generate_local_decl for all those variables
6391 : that have not already been declared. */
6392 :
6393 : static void
6394 : generate_local_decl (gfc_symbol *);
6395 :
6396 : /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */
6397 :
6398 : static bool
6399 113804 : expr_decls (gfc_expr *e, gfc_symbol *sym,
6400 : int *f ATTRIBUTE_UNUSED)
6401 : {
6402 113804 : if (e->expr_type != EXPR_VARIABLE
6403 7981 : || sym == e->symtree->n.sym
6404 7968 : || e->symtree->n.sym->mark
6405 744 : || e->symtree->n.sym->ns != sym->ns)
6406 : return false;
6407 :
6408 744 : generate_local_decl (e->symtree->n.sym);
6409 744 : return false;
6410 : }
6411 :
6412 : static void
6413 151438 : generate_expr_decls (gfc_symbol *sym, gfc_expr *e)
6414 : {
6415 0 : gfc_traverse_expr (e, sym, expr_decls, 0);
6416 1058 : }
6417 :
6418 :
6419 : /* Check for dependencies in the character length and array spec. */
6420 :
6421 : static void
6422 194707 : generate_dependency_declarations (gfc_symbol *sym)
6423 : {
6424 194707 : int i;
6425 :
6426 194707 : if (sym->ts.type == BT_CHARACTER
6427 17329 : && sym->ts.u.cl
6428 17329 : && sym->ts.u.cl->length
6429 14230 : && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT)
6430 1058 : generate_expr_decls (sym, sym->ts.u.cl->length);
6431 :
6432 194707 : if (sym->as && sym->as->rank)
6433 : {
6434 127280 : for (i = 0; i < sym->as->rank; i++)
6435 : {
6436 75190 : generate_expr_decls (sym, sym->as->lower[i]);
6437 75190 : generate_expr_decls (sym, sym->as->upper[i]);
6438 : }
6439 : }
6440 194707 : }
6441 :
6442 :
6443 : /* Generate decls for all local variables. We do this to ensure correct
6444 : handling of expressions which only appear in the specification of
6445 : other functions. */
6446 :
6447 : static void
6448 1088180 : generate_local_decl (gfc_symbol * sym)
6449 : {
6450 1088180 : if (sym->attr.flavor == FL_VARIABLE)
6451 : {
6452 289164 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
6453 591 : && sym->attr.referenced && !sym->attr.use_assoc)
6454 532 : has_coarray_vars_or_accessors = true;
6455 :
6456 289164 : if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master)
6457 194707 : generate_dependency_declarations (sym);
6458 :
6459 289164 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
6460 : {
6461 2 : if (sym->attr.dummy)
6462 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6463 : "dummy argument", sym->name, &sym->declared_at);
6464 : else
6465 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6466 : "local variable", sym->name, &sym->declared_at);
6467 : }
6468 :
6469 289164 : if (sym->attr.referenced)
6470 254843 : gfc_get_symbol_decl (sym);
6471 :
6472 : /* Warnings for unused dummy arguments. */
6473 34321 : else if (sym->attr.dummy && !sym->attr.in_namelist)
6474 : {
6475 : /* INTENT(out) dummy arguments are likely meant to be set. */
6476 6537 : if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT)
6477 : {
6478 9 : if (sym->ts.type != BT_DERIVED)
6479 6 : gfc_warning (OPT_Wunused_dummy_argument,
6480 : "Dummy argument %qs at %L was declared "
6481 : "INTENT(OUT) but was not set", sym->name,
6482 : &sym->declared_at);
6483 3 : else if (!gfc_has_default_initializer (sym->ts.u.derived)
6484 3 : && !sym->ts.u.derived->attr.zero_comp)
6485 1 : gfc_warning (OPT_Wunused_dummy_argument,
6486 : "Derived-type dummy argument %qs at %L was "
6487 : "declared INTENT(OUT) but was not set and "
6488 : "does not have a default initializer",
6489 : sym->name, &sym->declared_at);
6490 9 : if (sym->backend_decl != NULL_TREE)
6491 9 : suppress_warning (sym->backend_decl);
6492 : }
6493 6528 : else if (warn_unused_dummy_argument)
6494 : {
6495 10 : if (!sym->attr.artificial)
6496 4 : gfc_warning (OPT_Wunused_dummy_argument,
6497 : "Unused dummy argument %qs at %L", sym->name,
6498 : &sym->declared_at);
6499 :
6500 10 : if (sym->backend_decl != NULL_TREE)
6501 4 : suppress_warning (sym->backend_decl);
6502 : }
6503 : }
6504 :
6505 : /* Warn for unused variables, but not if they're inside a common
6506 : block or a namelist. */
6507 27784 : else if (warn_unused_variable
6508 45 : && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist))
6509 : {
6510 43 : if (sym->attr.use_only)
6511 : {
6512 1 : gfc_warning (OPT_Wunused_variable,
6513 : "Unused module variable %qs which has been "
6514 : "explicitly imported at %L", sym->name,
6515 : &sym->declared_at);
6516 1 : if (sym->backend_decl != NULL_TREE)
6517 0 : suppress_warning (sym->backend_decl);
6518 : }
6519 42 : else if (!sym->attr.use_assoc)
6520 : {
6521 : /* Corner case: the symbol may be an entry point. At this point,
6522 : it may appear to be an unused variable. Suppress warning. */
6523 8 : bool enter = false;
6524 8 : gfc_entry_list *el;
6525 :
6526 14 : for (el = sym->ns->entries; el; el=el->next)
6527 6 : if (strcmp(sym->name, el->sym->name) == 0)
6528 2 : enter = true;
6529 :
6530 8 : if (!enter)
6531 6 : gfc_warning (OPT_Wunused_variable,
6532 : "Unused variable %qs declared at %L",
6533 : sym->name, &sym->declared_at);
6534 8 : if (sym->backend_decl != NULL_TREE)
6535 0 : suppress_warning (sym->backend_decl);
6536 : }
6537 : }
6538 :
6539 : /* For variable length CHARACTER parameters, the PARM_DECL already
6540 : references the length variable, so force gfc_get_symbol_decl
6541 : even when not referenced. If optimize > 0, it will be optimized
6542 : away anyway. But do this only after emitting -Wunused-parameter
6543 : warning if requested. */
6544 289164 : if (sym->attr.dummy && !sym->attr.referenced
6545 6540 : && sym->ts.type == BT_CHARACTER
6546 813 : && sym->ts.u.cl->backend_decl != NULL
6547 811 : && VAR_P (sym->ts.u.cl->backend_decl))
6548 : {
6549 6 : sym->attr.referenced = 1;
6550 6 : gfc_get_symbol_decl (sym);
6551 : }
6552 :
6553 : /* INTENT(out) dummy arguments and result variables with allocatable
6554 : components are reset by default and need to be set referenced to
6555 : generate the code for nullification and automatic lengths. */
6556 289164 : if (!sym->attr.referenced
6557 34315 : && sym->ts.type == BT_DERIVED
6558 20458 : && sym->ts.u.derived->attr.alloc_comp
6559 1618 : && !sym->attr.pointer
6560 1617 : && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT)
6561 1581 : ||
6562 1581 : (sym->attr.result && sym != sym->result)))
6563 : {
6564 36 : sym->attr.referenced = 1;
6565 36 : gfc_get_symbol_decl (sym);
6566 : }
6567 :
6568 : /* Check for dependencies in the array specification and string
6569 : length, adding the necessary declarations to the function. We
6570 : mark the symbol now, as well as in traverse_ns, to prevent
6571 : getting stuck in a circular dependency. */
6572 289164 : sym->mark = 1;
6573 : }
6574 799016 : else if (sym->attr.flavor == FL_PARAMETER)
6575 : {
6576 207672 : if (warn_unused_parameter
6577 488 : && !sym->attr.referenced)
6578 : {
6579 431 : if (!sym->attr.use_assoc)
6580 4 : gfc_warning (OPT_Wunused_parameter,
6581 : "Unused parameter %qs declared at %L", sym->name,
6582 : &sym->declared_at);
6583 427 : else if (sym->attr.use_only)
6584 1 : gfc_warning (OPT_Wunused_parameter,
6585 : "Unused parameter %qs which has been explicitly "
6586 : "imported at %L", sym->name, &sym->declared_at);
6587 : }
6588 :
6589 207672 : if (sym->ns && sym->ns->construct_entities)
6590 : {
6591 : /* Construction of the intrinsic modules within a BLOCK
6592 : construct, where ONLY and RENAMED entities are included,
6593 : seems to be bogus. This is a workaround that can be removed
6594 : if someone ever takes on the task to creating full-fledge
6595 : modules. See PR 69455. */
6596 78 : if (sym->attr.referenced
6597 78 : && sym->from_intmod != INTMOD_ISO_C_BINDING
6598 54 : && sym->from_intmod != INTMOD_ISO_FORTRAN_ENV)
6599 26 : gfc_get_symbol_decl (sym);
6600 78 : sym->mark = 1;
6601 : }
6602 : }
6603 591344 : else if (sym->attr.flavor == FL_PROCEDURE)
6604 : {
6605 : /* TODO: move to the appropriate place in resolve.cc. */
6606 491527 : if (warn_return_type > 0
6607 4703 : && sym->attr.function
6608 3430 : && sym->result
6609 3222 : && sym != sym->result
6610 444 : && !sym->result->attr.referenced
6611 36 : && !sym->attr.use_assoc
6612 23 : && sym->attr.if_source != IFSRC_IFBODY)
6613 : {
6614 23 : gfc_warning (OPT_Wreturn_type,
6615 : "Return value %qs of function %qs declared at "
6616 : "%L not set", sym->result->name, sym->name,
6617 : &sym->result->declared_at);
6618 :
6619 : /* Prevents "Unused variable" warning for RESULT variables. */
6620 23 : sym->result->mark = 1;
6621 : }
6622 : }
6623 :
6624 1088180 : if (sym->attr.dummy == 1)
6625 : {
6626 : /* The tree type for scalar character dummy arguments of BIND(C)
6627 : procedures, if they are passed by value, should be unsigned char.
6628 : The value attribute implies the dummy is a scalar. */
6629 101253 : if (sym->attr.value == 1 && sym->backend_decl != NULL
6630 8429 : && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop
6631 254 : && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c)
6632 : {
6633 : /* We used to modify the tree here. Now it is done earlier in
6634 : the front-end, so we only check it here to avoid regressions. */
6635 242 : gcc_assert (TREE_CODE (TREE_TYPE (sym->backend_decl)) == INTEGER_TYPE);
6636 242 : gcc_assert (TYPE_UNSIGNED (TREE_TYPE (sym->backend_decl)) == 1);
6637 242 : gcc_assert (TYPE_PRECISION (TREE_TYPE (sym->backend_decl)) == CHAR_TYPE_SIZE);
6638 242 : gcc_assert (DECL_BY_REFERENCE (sym->backend_decl) == 0);
6639 : }
6640 :
6641 : /* Unused procedure passed as dummy argument. */
6642 101253 : if (sym->attr.flavor == FL_PROCEDURE)
6643 : {
6644 924 : if (!sym->attr.referenced && !sym->attr.artificial)
6645 : {
6646 58 : if (warn_unused_dummy_argument)
6647 2 : gfc_warning (OPT_Wunused_dummy_argument,
6648 : "Unused dummy argument %qs at %L", sym->name,
6649 : &sym->declared_at);
6650 : }
6651 :
6652 : /* Silence bogus "unused parameter" warnings from the
6653 : middle end. */
6654 924 : if (sym->backend_decl != NULL_TREE)
6655 924 : suppress_warning (sym->backend_decl);
6656 : }
6657 : }
6658 :
6659 : /* Make sure we convert the types of the derived types from iso_c_binding
6660 : into (void *). */
6661 1088180 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
6662 80142 : && sym->ts.type == BT_DERIVED)
6663 3391 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
6664 1088180 : }
6665 :
6666 :
6667 : static void
6668 1088187 : generate_local_nml_decl (gfc_symbol * sym)
6669 : {
6670 1088187 : if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc)
6671 : {
6672 718 : tree decl = generate_namelist_decl (sym);
6673 718 : pushdecl (decl);
6674 : }
6675 1088187 : }
6676 :
6677 :
6678 : static void
6679 98702 : generate_local_vars (gfc_namespace * ns)
6680 : {
6681 98702 : gfc_traverse_ns (ns, generate_local_decl);
6682 98702 : gfc_traverse_ns (ns, generate_local_nml_decl);
6683 98702 : }
6684 :
6685 :
6686 : /* Generate a switch statement to jump to the correct entry point. Also
6687 : creates the label decls for the entry points. */
6688 :
6689 : static tree
6690 667 : gfc_trans_entry_master_switch (gfc_entry_list * el)
6691 : {
6692 667 : stmtblock_t block;
6693 667 : tree label;
6694 667 : tree tmp;
6695 667 : tree val;
6696 :
6697 667 : gfc_init_block (&block);
6698 2746 : for (; el; el = el->next)
6699 : {
6700 : /* Add the case label. */
6701 1412 : label = gfc_build_label_decl (NULL_TREE);
6702 1412 : val = build_int_cst (gfc_array_index_type, el->id);
6703 1412 : tmp = build_case_label (val, NULL_TREE, label);
6704 1412 : gfc_add_expr_to_block (&block, tmp);
6705 :
6706 : /* And jump to the actual entry point. */
6707 1412 : label = gfc_build_label_decl (NULL_TREE);
6708 1412 : tmp = build1_v (GOTO_EXPR, label);
6709 1412 : gfc_add_expr_to_block (&block, tmp);
6710 :
6711 : /* Save the label decl. */
6712 1412 : el->label = label;
6713 : }
6714 667 : tmp = gfc_finish_block (&block);
6715 : /* The first argument selects the entry point. */
6716 667 : val = DECL_ARGUMENTS (current_function_decl);
6717 667 : tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp);
6718 667 : return tmp;
6719 : }
6720 :
6721 :
6722 : /* Add code to string lengths of actual arguments passed to a function against
6723 : the expected lengths of the dummy arguments. */
6724 :
6725 : static void
6726 2905 : add_argument_checking (stmtblock_t *block, gfc_symbol *sym)
6727 : {
6728 2905 : gfc_formal_arglist *formal;
6729 :
6730 5759 : for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next)
6731 2854 : if (formal->sym && formal->sym->ts.type == BT_CHARACTER
6732 604 : && !formal->sym->ts.deferred)
6733 : {
6734 554 : enum tree_code comparison;
6735 554 : tree cond;
6736 554 : tree argname;
6737 554 : gfc_symbol *fsym;
6738 554 : gfc_charlen *cl;
6739 554 : const char *message;
6740 :
6741 554 : fsym = formal->sym;
6742 554 : cl = fsym->ts.u.cl;
6743 :
6744 554 : gcc_assert (cl);
6745 554 : gcc_assert (cl->passed_length != NULL_TREE);
6746 554 : gcc_assert (cl->backend_decl != NULL_TREE);
6747 :
6748 : /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the
6749 : string lengths must match exactly. Otherwise, it is only required
6750 : that the actual string length is *at least* the expected one.
6751 : Sequence association allows for a mismatch of the string length
6752 : if the actual argument is (part of) an array, but only if the
6753 : dummy argument is an array. (See "Sequence association" in
6754 : Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */
6755 554 : if (fsym->attr.pointer || fsym->attr.allocatable
6756 446 : || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE
6757 33 : || fsym->as->type == AS_ASSUMED_RANK)))
6758 : {
6759 196 : comparison = NE_EXPR;
6760 196 : message = _("Actual string length does not match the declared one"
6761 : " for dummy argument '%s' (%ld/%ld)");
6762 : }
6763 358 : else if ((fsym->as && fsym->as->rank != 0) || fsym->attr.artificial)
6764 33 : continue;
6765 : else
6766 : {
6767 325 : comparison = LT_EXPR;
6768 325 : message = _("Actual string length is shorter than the declared one"
6769 : " for dummy argument '%s' (%ld/%ld)");
6770 : }
6771 :
6772 : /* Build the condition. For optional arguments, an actual length
6773 : of 0 is also acceptable if the associated string is NULL, which
6774 : means the argument was not passed. */
6775 521 : cond = fold_build2_loc (input_location, comparison, logical_type_node,
6776 : cl->passed_length, cl->backend_decl);
6777 521 : if (fsym->attr.optional)
6778 : {
6779 45 : tree not_absent;
6780 45 : tree not_0length;
6781 45 : tree absent_failed;
6782 :
6783 45 : not_0length = fold_build2_loc (input_location, NE_EXPR,
6784 : logical_type_node,
6785 : cl->passed_length,
6786 : build_zero_cst
6787 45 : (TREE_TYPE (cl->passed_length)));
6788 : /* The symbol needs to be referenced for gfc_get_symbol_decl. */
6789 45 : fsym->attr.referenced = 1;
6790 45 : not_absent = gfc_conv_expr_present (fsym);
6791 :
6792 45 : absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR,
6793 : logical_type_node, not_0length,
6794 : not_absent);
6795 :
6796 45 : cond = fold_build2_loc (input_location, TRUTH_AND_EXPR,
6797 : logical_type_node, cond, absent_failed);
6798 : }
6799 :
6800 : /* Build the runtime check. */
6801 521 : argname = gfc_build_cstring_const (fsym->name);
6802 521 : argname = gfc_build_addr_expr (pchar_type_node, argname);
6803 521 : gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at,
6804 : message, argname,
6805 : fold_convert (long_integer_type_node,
6806 : cl->passed_length),
6807 : fold_convert (long_integer_type_node,
6808 : cl->backend_decl));
6809 : }
6810 2905 : }
6811 :
6812 :
6813 : static void
6814 26153 : create_main_function (tree fndecl)
6815 : {
6816 26153 : tree old_context;
6817 26153 : tree ftn_main;
6818 26153 : tree tmp, decl, result_decl, argc, argv, typelist, arglist;
6819 26153 : stmtblock_t body;
6820 :
6821 26153 : old_context = current_function_decl;
6822 :
6823 26153 : if (old_context)
6824 : {
6825 0 : push_function_context ();
6826 0 : saved_parent_function_decls = saved_function_decls;
6827 0 : saved_function_decls = NULL_TREE;
6828 : }
6829 :
6830 : /* main() function must be declared with global scope. */
6831 26153 : gcc_assert (current_function_decl == NULL_TREE);
6832 :
6833 : /* Declare the function. */
6834 26153 : tmp = build_function_type_list (integer_type_node, integer_type_node,
6835 : build_pointer_type (pchar_type_node),
6836 : NULL_TREE);
6837 26153 : main_identifier_node = get_identifier ("main");
6838 26153 : ftn_main = build_decl (input_location, FUNCTION_DECL,
6839 : main_identifier_node, tmp);
6840 26153 : DECL_EXTERNAL (ftn_main) = 0;
6841 26153 : TREE_PUBLIC (ftn_main) = 1;
6842 26153 : TREE_STATIC (ftn_main) = 1;
6843 26153 : DECL_ATTRIBUTES (ftn_main)
6844 26153 : = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE);
6845 :
6846 : /* Setup the result declaration (for "return 0"). */
6847 26153 : result_decl = build_decl (input_location,
6848 : RESULT_DECL, NULL_TREE, integer_type_node);
6849 26153 : DECL_ARTIFICIAL (result_decl) = 1;
6850 26153 : DECL_IGNORED_P (result_decl) = 1;
6851 26153 : DECL_CONTEXT (result_decl) = ftn_main;
6852 26153 : DECL_RESULT (ftn_main) = result_decl;
6853 :
6854 26153 : pushdecl (ftn_main);
6855 :
6856 : /* Get the arguments. */
6857 :
6858 26153 : arglist = NULL_TREE;
6859 26153 : typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main));
6860 :
6861 26153 : tmp = TREE_VALUE (typelist);
6862 26153 : argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp);
6863 26153 : DECL_CONTEXT (argc) = ftn_main;
6864 26153 : DECL_ARG_TYPE (argc) = TREE_VALUE (typelist);
6865 26153 : TREE_READONLY (argc) = 1;
6866 26153 : gfc_finish_decl (argc);
6867 26153 : arglist = chainon (arglist, argc);
6868 :
6869 26153 : typelist = TREE_CHAIN (typelist);
6870 26153 : tmp = TREE_VALUE (typelist);
6871 26153 : argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp);
6872 26153 : DECL_CONTEXT (argv) = ftn_main;
6873 26153 : DECL_ARG_TYPE (argv) = TREE_VALUE (typelist);
6874 26153 : TREE_READONLY (argv) = 1;
6875 26153 : DECL_BY_REFERENCE (argv) = 1;
6876 26153 : gfc_finish_decl (argv);
6877 26153 : arglist = chainon (arglist, argv);
6878 :
6879 26153 : DECL_ARGUMENTS (ftn_main) = arglist;
6880 26153 : current_function_decl = ftn_main;
6881 26153 : announce_function (ftn_main);
6882 :
6883 26153 : rest_of_decl_compilation (ftn_main, 1, 0);
6884 26153 : make_decl_rtl (ftn_main);
6885 26153 : allocate_struct_function (ftn_main, false);
6886 26153 : pushlevel ();
6887 :
6888 26153 : gfc_init_block (&body);
6889 :
6890 : /* Call some libgfortran initialization routines, call then MAIN__(). */
6891 :
6892 : /* Call _gfortran_caf_init (*argc, ***argv). */
6893 26153 : if (flag_coarray == GFC_FCOARRAY_LIB)
6894 : {
6895 400 : tree pint_type, pppchar_type;
6896 400 : pint_type = build_pointer_type (integer_type_node);
6897 400 : pppchar_type
6898 400 : = build_pointer_type (build_pointer_type (pchar_type_node));
6899 :
6900 400 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2,
6901 : gfc_build_addr_expr (pint_type, argc),
6902 : gfc_build_addr_expr (pppchar_type, argv));
6903 400 : gfc_add_expr_to_block (&body, tmp);
6904 : }
6905 :
6906 : /* Call _gfortran_set_args (argc, argv). */
6907 26153 : TREE_USED (argc) = 1;
6908 26153 : TREE_USED (argv) = 1;
6909 26153 : tmp = build_call_expr_loc (input_location,
6910 : gfor_fndecl_set_args, 2, argc, argv);
6911 26153 : gfc_add_expr_to_block (&body, tmp);
6912 :
6913 : /* Add a call to set_options to set up the runtime library Fortran
6914 : language standard parameters. */
6915 26153 : {
6916 26153 : tree array_type, array, var;
6917 26153 : vec<constructor_elt, va_gc> *v = NULL;
6918 26153 : static const int noptions = 7;
6919 :
6920 : /* Passing a new option to the library requires three modifications:
6921 : + add it to the tree_cons list below
6922 : + change the noptions variable above
6923 : + modify the library (runtime/compile_options.c)! */
6924 :
6925 26153 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6926 : build_int_cst (integer_type_node,
6927 : gfc_option.warn_std));
6928 26153 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6929 : build_int_cst (integer_type_node,
6930 : gfc_option.allow_std));
6931 26153 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6932 : build_int_cst (integer_type_node, pedantic));
6933 26153 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6934 : build_int_cst (integer_type_node, flag_backtrace));
6935 26153 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6936 : build_int_cst (integer_type_node, flag_sign_zero));
6937 26153 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6938 : build_int_cst (integer_type_node,
6939 : (gfc_option.rtcheck
6940 : & GFC_RTCHECK_BOUNDS)));
6941 26153 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6942 : build_int_cst (integer_type_node,
6943 : gfc_option.fpe_summary));
6944 :
6945 26153 : array_type = build_array_type_nelts (integer_type_node, noptions);
6946 26153 : array = build_constructor (array_type, v);
6947 26153 : TREE_CONSTANT (array) = 1;
6948 26153 : TREE_STATIC (array) = 1;
6949 :
6950 : /* Create a static variable to hold the jump table. */
6951 26153 : var = build_decl (input_location, VAR_DECL,
6952 : create_tmp_var_name ("options"), array_type);
6953 26153 : DECL_ARTIFICIAL (var) = 1;
6954 26153 : DECL_IGNORED_P (var) = 1;
6955 26153 : TREE_CONSTANT (var) = 1;
6956 26153 : TREE_STATIC (var) = 1;
6957 26153 : TREE_READONLY (var) = 1;
6958 26153 : DECL_INITIAL (var) = array;
6959 26153 : pushdecl (var);
6960 26153 : var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var);
6961 :
6962 26153 : tmp = build_call_expr_loc (input_location,
6963 : gfor_fndecl_set_options, 2,
6964 : build_int_cst (integer_type_node, noptions), var);
6965 26153 : gfc_add_expr_to_block (&body, tmp);
6966 : }
6967 :
6968 : /* If -ffpe-trap option was provided, add a call to set_fpe so that
6969 : the library will raise a FPE when needed. */
6970 26153 : if (gfc_option.fpe != 0)
6971 : {
6972 6 : tmp = build_call_expr_loc (input_location,
6973 : gfor_fndecl_set_fpe, 1,
6974 : build_int_cst (integer_type_node,
6975 6 : gfc_option.fpe));
6976 6 : gfc_add_expr_to_block (&body, tmp);
6977 : }
6978 :
6979 : /* If this is the main program and an -fconvert option was provided,
6980 : add a call to set_convert. */
6981 :
6982 26153 : if (flag_convert != GFC_FLAG_CONVERT_NATIVE)
6983 : {
6984 12 : tmp = build_call_expr_loc (input_location,
6985 : gfor_fndecl_set_convert, 1,
6986 12 : build_int_cst (integer_type_node, flag_convert));
6987 12 : gfc_add_expr_to_block (&body, tmp);
6988 : }
6989 :
6990 : /* If this is the main program and an -frecord-marker option was provided,
6991 : add a call to set_record_marker. */
6992 :
6993 26153 : if (flag_record_marker != 0)
6994 : {
6995 18 : tmp = build_call_expr_loc (input_location,
6996 : gfor_fndecl_set_record_marker, 1,
6997 : build_int_cst (integer_type_node,
6998 18 : flag_record_marker));
6999 18 : gfc_add_expr_to_block (&body, tmp);
7000 : }
7001 :
7002 26153 : if (flag_max_subrecord_length != 0)
7003 : {
7004 6 : tmp = build_call_expr_loc (input_location,
7005 : gfor_fndecl_set_max_subrecord_length, 1,
7006 : build_int_cst (integer_type_node,
7007 6 : flag_max_subrecord_length));
7008 6 : gfc_add_expr_to_block (&body, tmp);
7009 : }
7010 :
7011 : /* Call MAIN__(). */
7012 26153 : tmp = build_call_expr_loc (input_location,
7013 : fndecl, 0);
7014 26153 : gfc_add_expr_to_block (&body, tmp);
7015 :
7016 : /* Mark MAIN__ as used. */
7017 26153 : TREE_USED (fndecl) = 1;
7018 :
7019 : /* Coarray: Call _gfortran_caf_finalize(void). */
7020 26153 : if (flag_coarray == GFC_FCOARRAY_LIB)
7021 : {
7022 400 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0);
7023 400 : gfc_add_expr_to_block (&body, tmp);
7024 : }
7025 :
7026 : /* "return 0". */
7027 26153 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node,
7028 26153 : DECL_RESULT (ftn_main),
7029 : integer_zero_node);
7030 26153 : tmp = build1_v (RETURN_EXPR, tmp);
7031 26153 : gfc_add_expr_to_block (&body, tmp);
7032 :
7033 :
7034 26153 : DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body);
7035 26153 : decl = getdecls ();
7036 :
7037 : /* Finish off this function and send it for code generation. */
7038 26153 : poplevel (1, 1);
7039 26153 : BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main;
7040 :
7041 52306 : DECL_SAVED_TREE (ftn_main)
7042 52306 : = fold_build3_loc (DECL_SOURCE_LOCATION (ftn_main), BIND_EXPR,
7043 26153 : void_type_node, decl, DECL_SAVED_TREE (ftn_main),
7044 26153 : DECL_INITIAL (ftn_main));
7045 :
7046 : /* Output the GENERIC tree. */
7047 26153 : dump_function (TDI_original, ftn_main);
7048 :
7049 26153 : cgraph_node::finalize_function (ftn_main, true);
7050 :
7051 26153 : if (old_context)
7052 : {
7053 0 : pop_function_context ();
7054 0 : saved_function_decls = saved_parent_function_decls;
7055 : }
7056 26153 : current_function_decl = old_context;
7057 26153 : }
7058 :
7059 :
7060 : /* Generate an appropriate return-statement for a procedure. */
7061 :
7062 : tree
7063 15063 : gfc_generate_return (void)
7064 : {
7065 15063 : gfc_symbol* sym;
7066 15063 : tree result;
7067 15063 : tree fndecl;
7068 :
7069 15063 : sym = current_procedure_symbol;
7070 15063 : fndecl = sym->backend_decl;
7071 :
7072 15063 : if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node)
7073 : result = NULL_TREE;
7074 : else
7075 : {
7076 12770 : result = get_proc_result (sym);
7077 :
7078 : /* Set the return value to the dummy result variable. The
7079 : types may be different for scalar default REAL functions
7080 : with -ff2c, therefore we have to convert. */
7081 12770 : if (result != NULL_TREE)
7082 : {
7083 12759 : result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result);
7084 25518 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7085 12759 : TREE_TYPE (result), DECL_RESULT (fndecl),
7086 : result);
7087 : }
7088 : else
7089 : {
7090 : /* If the function does not have a result variable, result is
7091 : NULL_TREE, and a 'return' is generated without a variable.
7092 : The following generates a 'return __result_XXX' where XXX is
7093 : the function name. */
7094 11 : if (sym == sym->result && sym->attr.function && !flag_f2c)
7095 : {
7096 8 : result = gfc_get_fake_result_decl (sym, 0);
7097 16 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7098 8 : TREE_TYPE (result),
7099 8 : DECL_RESULT (fndecl), result);
7100 : }
7101 : }
7102 : }
7103 :
7104 15063 : return build1_v (RETURN_EXPR, result);
7105 : }
7106 :
7107 :
7108 : static void
7109 1057517 : is_from_ieee_module (gfc_symbol *sym)
7110 : {
7111 1057517 : if (sym->from_intmod == INTMOD_IEEE_FEATURES
7112 : || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS
7113 1057517 : || sym->from_intmod == INTMOD_IEEE_ARITHMETIC)
7114 121658 : seen_ieee_symbol = 1;
7115 1057517 : }
7116 :
7117 :
7118 : static int
7119 84738 : is_ieee_module_used (gfc_namespace *ns)
7120 : {
7121 84738 : seen_ieee_symbol = 0;
7122 0 : gfc_traverse_ns (ns, is_from_ieee_module);
7123 84738 : return seen_ieee_symbol;
7124 : }
7125 :
7126 :
7127 : static gfc_omp_clauses *module_oacc_clauses;
7128 :
7129 :
7130 : static void
7131 146 : add_clause (gfc_symbol *sym, gfc_omp_map_op map_op)
7132 : {
7133 146 : gfc_omp_namelist *n;
7134 :
7135 146 : n = gfc_get_omp_namelist ();
7136 146 : n->sym = sym;
7137 146 : n->where = sym->declared_at;
7138 146 : n->u.map.op = map_op;
7139 :
7140 146 : if (!module_oacc_clauses)
7141 124 : module_oacc_clauses = gfc_get_omp_clauses ();
7142 :
7143 146 : if (module_oacc_clauses->lists[OMP_LIST_MAP])
7144 22 : n->next = module_oacc_clauses->lists[OMP_LIST_MAP];
7145 :
7146 146 : module_oacc_clauses->lists[OMP_LIST_MAP] = n;
7147 146 : }
7148 :
7149 :
7150 : static void
7151 1088187 : find_module_oacc_declare_clauses (gfc_symbol *sym)
7152 : {
7153 1088187 : if (sym->attr.use_assoc)
7154 : {
7155 510722 : gfc_omp_map_op map_op;
7156 :
7157 510722 : if (sym->attr.oacc_declare_create)
7158 510722 : map_op = OMP_MAP_FORCE_ALLOC;
7159 :
7160 510722 : if (sym->attr.oacc_declare_copyin)
7161 2 : map_op = OMP_MAP_FORCE_TO;
7162 :
7163 510722 : if (sym->attr.oacc_declare_deviceptr)
7164 0 : map_op = OMP_MAP_FORCE_DEVICEPTR;
7165 :
7166 510722 : if (sym->attr.oacc_declare_device_resident)
7167 34 : map_op = OMP_MAP_DEVICE_RESIDENT;
7168 :
7169 510722 : if (sym->attr.oacc_declare_create
7170 510612 : || sym->attr.oacc_declare_copyin
7171 510610 : || sym->attr.oacc_declare_deviceptr
7172 510610 : || sym->attr.oacc_declare_device_resident)
7173 : {
7174 146 : sym->attr.referenced = 1;
7175 146 : add_clause (sym, map_op);
7176 : }
7177 : }
7178 1088187 : }
7179 :
7180 :
7181 : void
7182 98702 : finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block)
7183 : {
7184 98702 : gfc_code *code;
7185 98702 : gfc_oacc_declare *oc;
7186 98702 : locus where;
7187 98702 : gfc_omp_clauses *omp_clauses = NULL;
7188 98702 : gfc_omp_namelist *n, *p;
7189 98702 : module_oacc_clauses = NULL;
7190 :
7191 98702 : gfc_locus_from_location (&where, input_location);
7192 98702 : gfc_traverse_ns (ns, find_module_oacc_declare_clauses);
7193 :
7194 98702 : if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM)
7195 : {
7196 45 : gfc_oacc_declare *new_oc;
7197 :
7198 45 : new_oc = gfc_get_oacc_declare ();
7199 45 : new_oc->next = ns->oacc_declare;
7200 45 : new_oc->clauses = module_oacc_clauses;
7201 :
7202 45 : ns->oacc_declare = new_oc;
7203 : }
7204 :
7205 98702 : if (!ns->oacc_declare)
7206 : return;
7207 :
7208 190 : for (oc = ns->oacc_declare; oc; oc = oc->next)
7209 : {
7210 101 : if (oc->module_var)
7211 0 : continue;
7212 :
7213 101 : if (block)
7214 2 : gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed "
7215 : "in BLOCK construct", &oc->loc);
7216 :
7217 :
7218 101 : if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP])
7219 : {
7220 88 : if (omp_clauses == NULL)
7221 : {
7222 76 : omp_clauses = oc->clauses;
7223 76 : continue;
7224 : }
7225 :
7226 48 : for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next)
7227 : ;
7228 :
7229 12 : gcc_assert (p->next == NULL);
7230 :
7231 12 : p->next = omp_clauses->lists[OMP_LIST_MAP];
7232 12 : omp_clauses = oc->clauses;
7233 : }
7234 : }
7235 :
7236 89 : if (!omp_clauses)
7237 : return;
7238 :
7239 212 : for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next)
7240 : {
7241 136 : switch (n->u.map.op)
7242 : {
7243 27 : case OMP_MAP_DEVICE_RESIDENT:
7244 27 : n->u.map.op = OMP_MAP_FORCE_ALLOC;
7245 27 : break;
7246 :
7247 : default:
7248 : break;
7249 : }
7250 : }
7251 :
7252 76 : code = XCNEW (gfc_code);
7253 76 : code->op = EXEC_OACC_DECLARE;
7254 76 : code->loc = where;
7255 :
7256 76 : code->ext.oacc_declare = gfc_get_oacc_declare ();
7257 76 : code->ext.oacc_declare->clauses = omp_clauses;
7258 :
7259 76 : code->block = XCNEW (gfc_code);
7260 76 : code->block->op = EXEC_OACC_DECLARE;
7261 76 : code->block->loc = where;
7262 :
7263 76 : if (ns->code)
7264 73 : code->block->next = ns->code;
7265 :
7266 76 : ns->code = code;
7267 :
7268 76 : return;
7269 : }
7270 :
7271 : static void
7272 1819 : gfc_conv_cfi_to_gfc (stmtblock_t *init, stmtblock_t *finally,
7273 : tree cfi_desc, tree gfc_desc, gfc_symbol *sym)
7274 : {
7275 1819 : stmtblock_t block;
7276 1819 : gfc_init_block (&block);
7277 1819 : tree cfi = build_fold_indirect_ref_loc (input_location, cfi_desc);
7278 1819 : tree idx, etype, tmp, tmp2, size_var = NULL_TREE, rank = NULL_TREE;
7279 1819 : bool do_copy_inout = false;
7280 :
7281 : /* When allocatable + intent out, free the cfi descriptor. */
7282 1819 : if (sym->attr.allocatable && sym->attr.intent == INTENT_OUT)
7283 : {
7284 54 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7285 54 : tree call = builtin_decl_explicit (BUILT_IN_FREE);
7286 54 : call = build_call_expr_loc (input_location, call, 1, tmp);
7287 54 : gfc_add_expr_to_block (&block, fold_convert (void_type_node, call));
7288 54 : gfc_add_modify (&block, tmp,
7289 54 : fold_convert (TREE_TYPE (tmp), null_pointer_node));
7290 : }
7291 :
7292 : /* -fcheck=bound: Do version, rank, attribute, type and is-NULL checks. */
7293 1819 : if (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
7294 : {
7295 654 : char *msg;
7296 654 : tree tmp3;
7297 654 : msg = xasprintf ("Unexpected version %%d (expected %d) in CFI descriptor "
7298 : "passed to dummy argument %s", CFI_VERSION, sym->name);
7299 654 : tmp2 = gfc_get_cfi_desc_version (cfi);
7300 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node, tmp2,
7301 654 : build_int_cst (TREE_TYPE (tmp2), CFI_VERSION));
7302 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7303 : msg, tmp2);
7304 654 : free (msg);
7305 :
7306 : /* Rank check; however, for character(len=*), assumed/explicit-size arrays
7307 : are permitted to differ in rank according to the Fortran rules. */
7308 654 : if (sym->as && sym->as->type != AS_ASSUMED_SIZE
7309 546 : && sym->as->type != AS_EXPLICIT)
7310 : {
7311 438 : if (sym->as->rank != -1)
7312 222 : msg = xasprintf ("Invalid rank %%d (expected %d) in CFI descriptor "
7313 : "passed to dummy argument %s", sym->as->rank,
7314 : sym->name);
7315 : else
7316 216 : msg = xasprintf ("Invalid rank %%d (expected 0..%d) in CFI "
7317 : "descriptor passed to dummy argument %s",
7318 : CFI_MAX_RANK, sym->name);
7319 :
7320 438 : tmp3 = tmp2 = tmp = gfc_get_cfi_desc_rank (cfi);
7321 438 : if (sym->as->rank != -1)
7322 222 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7323 : tmp, build_int_cst (signed_char_type_node,
7324 222 : sym->as->rank));
7325 : else
7326 : {
7327 216 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node,
7328 216 : tmp, build_zero_cst (TREE_TYPE (tmp)));
7329 216 : tmp2 = fold_build2_loc (input_location, GT_EXPR,
7330 : boolean_type_node, tmp2,
7331 216 : build_int_cst (TREE_TYPE (tmp2),
7332 : CFI_MAX_RANK));
7333 216 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7334 : boolean_type_node, tmp, tmp2);
7335 : }
7336 438 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7337 : msg, tmp3);
7338 438 : free (msg);
7339 : }
7340 :
7341 654 : tmp3 = tmp = gfc_get_cfi_desc_attribute (cfi);
7342 654 : if (sym->attr.allocatable || sym->attr.pointer)
7343 : {
7344 6 : int attr = (sym->attr.pointer ? CFI_attribute_pointer
7345 : : CFI_attribute_allocatable);
7346 12 : msg = xasprintf ("Invalid attribute %%d (expected %d) in CFI "
7347 : "descriptor passed to dummy argument %s with %s "
7348 : "attribute", attr, sym->name,
7349 : sym->attr.pointer ? "pointer" : "allocatable");
7350 6 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7351 6 : tmp, build_int_cst (TREE_TYPE (tmp), attr));
7352 6 : }
7353 : else
7354 : {
7355 648 : int amin = MIN (CFI_attribute_pointer,
7356 : MIN (CFI_attribute_allocatable, CFI_attribute_other));
7357 648 : int amax = MAX (CFI_attribute_pointer,
7358 : MAX (CFI_attribute_allocatable, CFI_attribute_other));
7359 648 : msg = xasprintf ("Invalid attribute %%d (expected %d..%d) in CFI "
7360 : "descriptor passed to nonallocatable, nonpointer "
7361 : "dummy argument %s", amin, amax, sym->name);
7362 648 : tmp2 = tmp;
7363 648 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node, tmp,
7364 648 : build_int_cst (TREE_TYPE (tmp), amin));
7365 648 : tmp2 = fold_build2_loc (input_location, GT_EXPR, boolean_type_node, tmp2,
7366 648 : build_int_cst (TREE_TYPE (tmp2), amax));
7367 648 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7368 : boolean_type_node, tmp, tmp2);
7369 648 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7370 : msg, tmp3);
7371 648 : free (msg);
7372 648 : msg = xasprintf ("Invalid unallocatated/unassociated CFI "
7373 : "descriptor passed to nonallocatable, nonpointer "
7374 : "dummy argument %s", sym->name);
7375 648 : tmp3 = tmp = gfc_get_cfi_desc_base_addr (cfi),
7376 648 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7377 : tmp, null_pointer_node);
7378 : }
7379 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7380 : msg, tmp3);
7381 654 : free (msg);
7382 :
7383 654 : if (sym->ts.type != BT_ASSUMED)
7384 : {
7385 654 : int type = CFI_type_other;
7386 654 : if (sym->ts.f90_type == BT_VOID)
7387 : {
7388 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7389 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7390 : }
7391 : else
7392 654 : switch (sym->ts.type)
7393 : {
7394 6 : case BT_INTEGER:
7395 6 : case BT_LOGICAL:
7396 6 : case BT_REAL:
7397 6 : case BT_COMPLEX:
7398 6 : type = CFI_type_from_type_kind (sym->ts.type, sym->ts.kind);
7399 6 : break;
7400 648 : case BT_CHARACTER:
7401 648 : type = CFI_type_from_type_kind (CFI_type_Character,
7402 : sym->ts.kind);
7403 648 : break;
7404 0 : case BT_DERIVED:
7405 0 : type = CFI_type_struct;
7406 0 : break;
7407 0 : case BT_VOID:
7408 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7409 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7410 : break;
7411 :
7412 0 : case BT_UNSIGNED:
7413 0 : gfc_internal_error ("Unsigned not yet implemented");
7414 :
7415 0 : case BT_ASSUMED:
7416 0 : case BT_CLASS:
7417 0 : case BT_PROCEDURE:
7418 0 : case BT_HOLLERITH:
7419 0 : case BT_UNION:
7420 0 : case BT_BOZ:
7421 0 : case BT_UNKNOWN:
7422 0 : gcc_unreachable ();
7423 : }
7424 654 : msg = xasprintf ("Unexpected type %%d (expected %d) in CFI descriptor"
7425 : " passed to dummy argument %s", type, sym->name);
7426 654 : tmp2 = tmp = gfc_get_cfi_desc_type (cfi);
7427 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7428 654 : tmp, build_int_cst (TREE_TYPE (tmp), type));
7429 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7430 : msg, tmp2);
7431 654 : free (msg);
7432 : }
7433 : }
7434 :
7435 1819 : if (!sym->attr.referenced)
7436 72 : goto done;
7437 :
7438 : /* Set string length for len=* and len=:, otherwise, it is already set. */
7439 1747 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
7440 : {
7441 647 : tmp = fold_convert (gfc_array_index_type,
7442 : gfc_get_cfi_desc_elem_len (cfi));
7443 647 : if (sym->ts.kind != 1)
7444 197 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7445 : gfc_array_index_type, tmp,
7446 : build_int_cst (gfc_charlen_type_node,
7447 197 : sym->ts.kind));
7448 647 : gfc_add_modify (&block, sym->ts.u.cl->backend_decl, tmp);
7449 : }
7450 :
7451 1747 : if (sym->ts.type == BT_CHARACTER
7452 1020 : && !INTEGER_CST_P (sym->ts.u.cl->backend_decl))
7453 : {
7454 804 : gfc_conv_string_length (sym->ts.u.cl, NULL, &block);
7455 804 : gfc_trans_vla_type_sizes (sym, &block);
7456 : }
7457 :
7458 : /* gfc->data = cfi->base_addr - or for scalars: gfc = cfi->base_addr.
7459 : assumed-size/explicit-size arrays end up here for character(len=*)
7460 : only. */
7461 1747 : if (!sym->attr.dimension || !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7462 : {
7463 418 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7464 418 : gfc_add_modify (&block, gfc_desc,
7465 418 : fold_convert (TREE_TYPE (gfc_desc), tmp));
7466 418 : if (!sym->attr.dimension)
7467 164 : goto done;
7468 : }
7469 :
7470 1583 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7471 : {
7472 : /* gfc->dtype = ... (from declaration, not from cfi). */
7473 1329 : etype = gfc_get_element_type (TREE_TYPE (gfc_desc));
7474 1329 : gfc_add_modify (&block, gfc_conv_descriptor_dtype (gfc_desc),
7475 1329 : gfc_get_dtype_rank_type (sym->as->rank, etype));
7476 : /* gfc->data = cfi->base_addr. */
7477 1329 : gfc_conv_descriptor_data_set (&block, gfc_desc,
7478 : gfc_get_cfi_desc_base_addr (cfi));
7479 : }
7480 :
7481 1583 : if (sym->ts.type == BT_ASSUMED)
7482 : {
7483 : /* For type(*), take elem_len + dtype.type from the actual argument. */
7484 19 : gfc_add_modify (&block, gfc_conv_descriptor_elem_len (gfc_desc),
7485 : gfc_get_cfi_desc_elem_len (cfi));
7486 19 : tree cond;
7487 19 : tree ctype = gfc_get_cfi_desc_type (cfi);
7488 19 : ctype = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (ctype),
7489 19 : ctype, build_int_cst (TREE_TYPE (ctype),
7490 : CFI_type_mask));
7491 19 : tree type = gfc_conv_descriptor_type (gfc_desc);
7492 :
7493 : /* if (CFI_type_cptr) BT_VOID else BT_UNKNOWN */
7494 : /* Note: BT_VOID is could also be CFI_type_funcptr, but assume c_ptr. */
7495 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7496 19 : build_int_cst (TREE_TYPE (ctype), CFI_type_cptr));
7497 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7498 19 : build_int_cst (TREE_TYPE (type), BT_VOID));
7499 19 : tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7500 : type,
7501 19 : build_int_cst (TREE_TYPE (type), BT_UNKNOWN));
7502 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7503 : tmp, tmp2);
7504 : /* if (CFI_type_struct) BT_DERIVED else < tmp2 > */
7505 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7506 19 : build_int_cst (TREE_TYPE (ctype),
7507 : CFI_type_struct));
7508 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7509 19 : build_int_cst (TREE_TYPE (type), BT_DERIVED));
7510 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7511 : tmp, tmp2);
7512 : /* if (CFI_type_Character) BT_CHARACTER else < tmp2 > */
7513 : /* Note: this is kind=1, CFI_type_ucs4_char is handled in the 'else if'
7514 : before (see below, as generated bottom up). */
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_Character));
7518 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7519 19 : build_int_cst (TREE_TYPE (type), BT_CHARACTER));
7520 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7521 : tmp, tmp2);
7522 : /* if (CFI_type_ucs4_char) BT_CHARACTER else < tmp2 > */
7523 : /* Note: gfc->elem_len = cfi->elem_len/4. */
7524 : /* However, assuming that CFI_type_ucs4_char cannot be recovered, leave
7525 : gfc->elem_len == cfi->elem_len, which helps with operations which use
7526 : sizeof() in Fortran and cfi->elem_len in C. */
7527 19 : tmp = gfc_get_cfi_desc_type (cfi);
7528 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, tmp,
7529 19 : build_int_cst (TREE_TYPE (tmp),
7530 : CFI_type_ucs4_char));
7531 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7532 19 : build_int_cst (TREE_TYPE (type), BT_CHARACTER));
7533 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7534 : tmp, tmp2);
7535 : /* if (CFI_type_Complex) BT_COMPLEX + cfi->elem_len/2 else < tmp2 > */
7536 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7537 19 : build_int_cst (TREE_TYPE (ctype),
7538 : CFI_type_Complex));
7539 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7540 19 : build_int_cst (TREE_TYPE (type), BT_COMPLEX));
7541 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7542 : tmp, tmp2);
7543 : /* if (CFI_type_Integer || CFI_type_Logical || CFI_type_Real)
7544 : ctype else <tmp2> */
7545 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7546 19 : build_int_cst (TREE_TYPE (ctype),
7547 : CFI_type_Integer));
7548 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7549 19 : build_int_cst (TREE_TYPE (ctype),
7550 : CFI_type_Logical));
7551 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7552 : cond, tmp);
7553 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7554 19 : build_int_cst (TREE_TYPE (ctype),
7555 : CFI_type_Real));
7556 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7557 : cond, tmp);
7558 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7559 19 : type, fold_convert (TREE_TYPE (type), ctype));
7560 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7561 : tmp, tmp2);
7562 19 : gfc_add_expr_to_block (&block, tmp2);
7563 : }
7564 :
7565 1583 : if (sym->as->rank < 0)
7566 : {
7567 : /* Set gfc->dtype.rank, if assumed-rank. */
7568 587 : rank = gfc_get_cfi_desc_rank (cfi);
7569 587 : gfc_add_modify (&block, gfc_conv_descriptor_rank (gfc_desc), rank);
7570 : }
7571 996 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7572 : /* In that case, the CFI rank and the declared rank can differ. */
7573 254 : rank = gfc_get_cfi_desc_rank (cfi);
7574 : else
7575 742 : rank = build_int_cst (signed_char_type_node, sym->as->rank);
7576 :
7577 : /* With bind(C), the standard requires that both Fortran callers and callees
7578 : handle noncontiguous arrays passed to an dummy with 'contiguous' attribute
7579 : and with character(len=*) + assumed-size/explicit-size arrays.
7580 : cf. Fortran 2018, 18.3.6, paragraph 5 (and for the caller: para. 6). */
7581 1583 : if ((sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length
7582 550 : && (sym->as->type == AS_ASSUMED_SIZE || sym->as->type == AS_EXPLICIT))
7583 1329 : || sym->attr.contiguous)
7584 : {
7585 517 : do_copy_inout = true;
7586 517 : gcc_assert (!sym->attr.pointer);
7587 517 : stmtblock_t block2;
7588 517 : tree data;
7589 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7590 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7591 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7592 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7593 : else
7594 : data = gfc_desc;
7595 :
7596 : /* Is copy-in/out needed? */
7597 : /* do_copyin = rank != 0 && !assumed-size */
7598 517 : tree cond_var = gfc_create_var (boolean_type_node, "do_copyin");
7599 517 : tree cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7600 517 : rank, build_zero_cst (TREE_TYPE (rank)));
7601 : /* dim[rank-1].extent != -1 -> assumed size*/
7602 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (rank),
7603 517 : rank, build_int_cst (TREE_TYPE (rank), 1));
7604 517 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7605 : gfc_get_cfi_dim_extent (cfi, tmp),
7606 : build_int_cst (gfc_array_index_type, -1));
7607 517 : cond = fold_build2_loc (input_location, TRUTH_ANDIF_EXPR,
7608 : boolean_type_node, cond, tmp);
7609 517 : gfc_add_modify (&block, cond_var, cond);
7610 : /* if (do_copyin) do_copyin = ... || ... || ... */
7611 517 : gfc_init_block (&block2);
7612 : /* dim[0].sm != elem_len */
7613 517 : tmp = fold_convert (gfc_array_index_type,
7614 : gfc_get_cfi_desc_elem_len (cfi));
7615 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7616 : gfc_get_cfi_dim_sm (cfi, gfc_index_zero_node),
7617 : tmp);
7618 517 : gfc_add_modify (&block2, cond_var, cond);
7619 :
7620 : /* for (i = 1; i < rank; ++i)
7621 : cond &&= dim[i].sm != (dv->dim[i - 1].sm * dv->dim[i - 1].extent) */
7622 517 : idx = gfc_create_var (TREE_TYPE (rank), "idx");
7623 517 : stmtblock_t loop_body;
7624 517 : gfc_init_block (&loop_body);
7625 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7626 517 : idx, build_int_cst (TREE_TYPE (idx), 1));
7627 517 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, tmp);
7628 517 : tmp = gfc_get_cfi_dim_extent (cfi, tmp);
7629 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp),
7630 : tmp2, tmp);
7631 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7632 : gfc_get_cfi_dim_sm (cfi, idx), tmp);
7633 517 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7634 : cond_var, cond);
7635 517 : gfc_add_modify (&loop_body, cond_var, cond);
7636 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7637 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7638 : gfc_finish_block (&loop_body));
7639 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7640 : build_empty_stmt (input_location));
7641 517 : gfc_add_expr_to_block (&block, tmp);
7642 :
7643 : /* Copy-in body. */
7644 517 : gfc_init_block (&block2);
7645 : /* size = dim[0].extent; for (i = 1; i < rank; ++i) size *= dim[i].extent */
7646 517 : size_var = gfc_create_var (size_type_node, "size");
7647 517 : tmp = fold_convert (size_type_node,
7648 : gfc_get_cfi_dim_extent (cfi, gfc_index_zero_node));
7649 517 : gfc_add_modify (&block2, size_var, tmp);
7650 :
7651 517 : gfc_init_block (&loop_body);
7652 517 : tmp = fold_convert (size_type_node,
7653 : gfc_get_cfi_dim_extent (cfi, idx));
7654 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7655 : size_var, fold_convert (size_type_node, tmp));
7656 517 : gfc_add_modify (&loop_body, size_var, tmp);
7657 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7658 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7659 : gfc_finish_block (&loop_body));
7660 : /* data = malloc (size * elem_len) */
7661 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7662 : size_var, gfc_get_cfi_desc_elem_len (cfi));
7663 517 : tree call = builtin_decl_explicit (BUILT_IN_MALLOC);
7664 517 : call = build_call_expr_loc (input_location, call, 1, tmp);
7665 517 : gfc_add_modify (&block2, data, fold_convert (TREE_TYPE (data), call));
7666 :
7667 : /* Copy the data:
7668 : for (idx = 0; idx < size; ++idx)
7669 : {
7670 : shift = 0;
7671 : tmpidx = idx
7672 : for (dim = 0; dim < rank; ++dim)
7673 : {
7674 : shift += (tmpidx % extent[d]) * sm[d]
7675 : tmpidx = tmpidx / extend[d]
7676 : }
7677 : memcpy (lhs + idx*elem_len, rhs + shift, elem_len)
7678 : } .*/
7679 517 : idx = gfc_create_var (size_type_node, "arrayidx");
7680 517 : gfc_init_block (&loop_body);
7681 517 : tree shift = gfc_create_var (size_type_node, "shift");
7682 517 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7683 517 : gfc_add_modify (&loop_body, shift, build_zero_cst (TREE_TYPE (shift)));
7684 517 : gfc_add_modify (&loop_body, tmpidx, idx);
7685 517 : stmtblock_t inner_loop;
7686 517 : gfc_init_block (&inner_loop);
7687 517 : tree dim = gfc_create_var (TREE_TYPE (rank), "dim");
7688 : /* shift += (tmpidx % extent[d]) * sm[d] */
7689 517 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7690 : size_type_node, tmpidx,
7691 : fold_convert (size_type_node,
7692 : gfc_get_cfi_dim_extent (cfi, dim)));
7693 517 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7694 : size_type_node, tmp,
7695 : fold_convert (size_type_node,
7696 : gfc_get_cfi_dim_sm (cfi, dim)));
7697 517 : gfc_add_modify (&inner_loop, shift,
7698 : fold_build2_loc (input_location, PLUS_EXPR,
7699 : size_type_node, shift, tmp));
7700 : /* tmpidx = tmpidx / extend[d] */
7701 517 : tmp = fold_convert (size_type_node, gfc_get_cfi_dim_extent (cfi, dim));
7702 517 : gfc_add_modify (&inner_loop, tmpidx,
7703 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7704 : size_type_node, tmpidx, tmp));
7705 1034 : gfc_simple_for_loop (&loop_body, dim, build_zero_cst (TREE_TYPE (rank)),
7706 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (dim), 1),
7707 : gfc_finish_block (&inner_loop));
7708 : /* Assign. */
7709 517 : tmp = fold_convert (pchar_type_node, gfc_get_cfi_desc_base_addr (cfi));
7710 517 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
7711 517 : tree lhs;
7712 : /* memcpy (lhs + idx*elem_len, rhs + shift, elem_len) */
7713 517 : tree elem_len;
7714 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7715 263 : elem_len = gfc_conv_descriptor_elem_len (gfc_desc);
7716 : else
7717 254 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
7718 517 : lhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7719 : elem_len, idx);
7720 517 : lhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR, pchar_type_node,
7721 : fold_convert (pchar_type_node, data), lhs);
7722 517 : tmp = fold_convert (pvoid_type_node, tmp);
7723 517 : lhs = fold_convert (pvoid_type_node, lhs);
7724 517 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
7725 517 : call = build_call_expr_loc (input_location, call, 3, lhs, tmp, elem_len);
7726 517 : gfc_add_expr_to_block (&loop_body, fold_convert (void_type_node, call));
7727 1034 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7728 517 : size_var, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7729 : gfc_finish_block (&loop_body));
7730 : /* if (cond) { block2 } */
7731 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7732 : build_empty_stmt (input_location));
7733 517 : gfc_add_expr_to_block (&block, tmp);
7734 : }
7735 :
7736 1583 : if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7737 : {
7738 254 : tree offset, type;
7739 254 : type = TREE_TYPE (gfc_desc);
7740 254 : gfc_trans_array_bounds (type, sym, &offset, &block);
7741 254 : if (VAR_P (GFC_TYPE_ARRAY_OFFSET (type)))
7742 144 : gfc_add_modify (&block, GFC_TYPE_ARRAY_OFFSET (type), offset);
7743 254 : goto done;
7744 : }
7745 :
7746 : /* If cfi->data != NULL. */
7747 1329 : stmtblock_t block2;
7748 1329 : gfc_init_block (&block2);
7749 :
7750 : /* if do_copy_inout: gfc->dspan = gfc->dtype.elem_len
7751 : We use gfc instead of cfi on the RHS as this might be a constant. */
7752 1329 : tmp = fold_convert (gfc_array_index_type,
7753 : gfc_conv_descriptor_elem_len (gfc_desc));
7754 1329 : if (!do_copy_inout)
7755 : {
7756 : /* gfc->dspan = ((cfi->dim[0].sm % gfc->elem_len)
7757 : ? cfi->dim[0].sm : gfc->elem_len). */
7758 1066 : tree cond;
7759 1066 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, gfc_rank_cst[0]);
7760 1066 : cond = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7761 : gfc_array_index_type, tmp2, tmp);
7762 1066 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7763 : cond, gfc_index_zero_node);
7764 1066 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7765 : tmp2, tmp);
7766 : }
7767 1329 : gfc_conv_descriptor_span_set (&block2, gfc_desc, tmp);
7768 :
7769 : /* Calculate offset + set lbound, ubound and stride. */
7770 1329 : gfc_conv_descriptor_offset_set (&block2, gfc_desc, gfc_index_zero_node);
7771 1329 : if (sym->as->rank > 0 && !sym->attr.pointer && !sym->attr.allocatable)
7772 1274 : for (int i = 0; i < sym->as->rank; ++i)
7773 : {
7774 718 : gfc_se se;
7775 718 : gfc_init_se (&se, NULL );
7776 718 : if (sym->as->lower[i])
7777 : {
7778 718 : gfc_conv_expr (&se, sym->as->lower[i]);
7779 718 : tmp = se.expr;
7780 : }
7781 : else
7782 0 : tmp = gfc_index_one_node;
7783 718 : gfc_add_block_to_block (&block2, &se.pre);
7784 718 : gfc_conv_descriptor_lbound_set (&block2, gfc_desc, gfc_rank_cst[i],
7785 : tmp);
7786 718 : gfc_add_block_to_block (&block2, &se.post);
7787 : }
7788 :
7789 : /* Loop: for (i = 0; i < rank; ++i). */
7790 1329 : idx = gfc_create_var (TREE_TYPE (rank), "idx");
7791 :
7792 : /* Loop body. */
7793 1329 : stmtblock_t loop_body;
7794 1329 : gfc_init_block (&loop_body);
7795 : /* gfc->dim[i].lbound = ... */
7796 1329 : if (sym->attr.pointer || sym->attr.allocatable)
7797 : {
7798 276 : tmp = gfc_get_cfi_dim_lbound (cfi, idx);
7799 276 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx, tmp);
7800 : }
7801 1053 : else if (sym->as->rank < 0)
7802 497 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx,
7803 : gfc_index_one_node);
7804 :
7805 : /* gfc->dim[i].ubound = gfc->dim[i].lbound + cfi->dim[i].extent - 1. */
7806 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7807 : gfc_conv_descriptor_lbound_get (gfc_desc, idx),
7808 : gfc_index_one_node);
7809 1329 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type,
7810 : gfc_get_cfi_dim_extent (cfi, idx), tmp);
7811 1329 : gfc_conv_descriptor_ubound_set (&loop_body, gfc_desc, idx, tmp);
7812 :
7813 1329 : if (do_copy_inout)
7814 : {
7815 : /* gfc->dim[i].stride
7816 : = idx == 0 ? 1 : gfc->dim[i-1].stride * cfi->dim[i-1].extent */
7817 263 : tree cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7818 263 : idx, build_zero_cst (TREE_TYPE (idx)));
7819 263 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7820 263 : idx, build_int_cst (TREE_TYPE (idx), 1));
7821 263 : tree tmp2 = gfc_get_cfi_dim_extent (cfi, tmp);
7822 263 : tmp = gfc_conv_descriptor_stride_get (gfc_desc, tmp);
7823 263 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp2),
7824 : tmp2, tmp);
7825 263 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7826 : gfc_index_one_node, tmp);
7827 : }
7828 : else
7829 : {
7830 : /* gfc->dim[i].stride = cfi->dim[i].sm / cfi>elem_len */
7831 1066 : tmp = gfc_get_cfi_dim_sm (cfi, idx);
7832 1066 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7833 : gfc_array_index_type, tmp,
7834 : fold_convert (gfc_array_index_type,
7835 : gfc_get_cfi_desc_elem_len (cfi)));
7836 : }
7837 1329 : gfc_conv_descriptor_stride_set (&loop_body, gfc_desc, idx, tmp);
7838 : /* gfc->offset -= gfc->dim[i].stride * gfc->dim[i].lbound. */
7839 1329 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
7840 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
7841 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
7842 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7843 : gfc_conv_descriptor_offset_get (gfc_desc), tmp);
7844 1329 : gfc_conv_descriptor_offset_set (&loop_body, gfc_desc, tmp);
7845 :
7846 : /* Generate loop. */
7847 2658 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7848 1329 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7849 : gfc_finish_block (&loop_body));
7850 1329 : if (sym->attr.allocatable || sym->attr.pointer)
7851 : {
7852 276 : tmp = gfc_get_cfi_desc_base_addr (cfi),
7853 276 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7854 : tmp, null_pointer_node);
7855 276 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
7856 : build_empty_stmt (input_location));
7857 276 : gfc_add_expr_to_block (&block, tmp);
7858 : }
7859 : else
7860 1053 : gfc_add_block_to_block (&block, &block2);
7861 :
7862 1819 : done:
7863 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
7864 1819 : if (sym->attr.optional)
7865 : {
7866 317 : tree present = fold_build2_loc (input_location, NE_EXPR,
7867 : boolean_type_node, cfi_desc,
7868 : null_pointer_node);
7869 317 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7870 : sym->backend_decl,
7871 317 : fold_convert (TREE_TYPE (sym->backend_decl),
7872 : null_pointer_node));
7873 317 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block), tmp);
7874 317 : gfc_add_expr_to_block (init, tmp);
7875 : }
7876 : else
7877 1502 : gfc_add_block_to_block (init, &block);
7878 :
7879 1819 : if (!sym->attr.referenced)
7880 984 : return;
7881 :
7882 : /* If pointer not changed, nothing to be done (except copy out) */
7883 1747 : if (!do_copy_inout && ((!sym->attr.pointer && !sym->attr.allocatable)
7884 381 : || sym->attr.intent == INTENT_IN))
7885 : return;
7886 :
7887 835 : gfc_init_block (&block);
7888 :
7889 : /* For bind(C), Fortran does not permit mixing 'pointer' with 'contiguous' (or
7890 : len=*). Thus, when copy out is needed, the bounds ofthe descriptor remain
7891 : unchanged. */
7892 835 : if (do_copy_inout)
7893 : {
7894 517 : tree data, call;
7895 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7896 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7897 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7898 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7899 : else
7900 : data = gfc_desc;
7901 517 : gfc_init_block (&block2);
7902 517 : if (sym->attr.intent != INTENT_IN)
7903 : {
7904 : /* First, create the inner copy-out loop.
7905 : for (idx = 0; idx < size; ++idx)
7906 : {
7907 : shift = 0;
7908 : tmpidx = idx
7909 : for (dim = 0; dim < rank; ++dim)
7910 : {
7911 : shift += (tmpidx % extent[d]) * sm[d]
7912 : tmpidx = tmpidx / extend[d]
7913 : }
7914 : memcpy (lhs + shift, rhs + idx*elem_len, elem_len)
7915 : } .*/
7916 292 : stmtblock_t loop_body;
7917 292 : idx = gfc_create_var (size_type_node, "arrayidx");
7918 292 : gfc_init_block (&loop_body);
7919 292 : tree shift = gfc_create_var (size_type_node, "shift");
7920 292 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7921 292 : gfc_add_modify (&loop_body, shift,
7922 292 : build_zero_cst (TREE_TYPE (shift)));
7923 292 : gfc_add_modify (&loop_body, tmpidx, idx);
7924 292 : stmtblock_t inner_loop;
7925 292 : gfc_init_block (&inner_loop);
7926 292 : tree dim = gfc_create_var (TREE_TYPE (rank), "dim");
7927 : /* shift += (tmpidx % extent[d]) * sm[d] */
7928 292 : tmp = fold_convert (size_type_node,
7929 : gfc_get_cfi_dim_extent (cfi, dim));
7930 292 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7931 : size_type_node, tmpidx, tmp);
7932 292 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7933 : size_type_node, tmp,
7934 : fold_convert (size_type_node,
7935 : gfc_get_cfi_dim_sm (cfi, dim)));
7936 292 : gfc_add_modify (&inner_loop, shift,
7937 : fold_build2_loc (input_location, PLUS_EXPR,
7938 : size_type_node, shift, tmp));
7939 : /* tmpidx = tmpidx / extend[d] */
7940 292 : tmp = fold_convert (size_type_node,
7941 : gfc_get_cfi_dim_extent (cfi, dim));
7942 292 : gfc_add_modify (&inner_loop, tmpidx,
7943 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7944 : size_type_node, tmpidx, tmp));
7945 876 : gfc_simple_for_loop (&loop_body, dim,
7946 292 : build_zero_cst (TREE_TYPE (rank)), rank, LT_EXPR,
7947 292 : build_int_cst (TREE_TYPE (dim), 1),
7948 : gfc_finish_block (&inner_loop));
7949 : /* Assign. */
7950 292 : tree rhs;
7951 292 : tmp = fold_convert (pchar_type_node,
7952 : gfc_get_cfi_desc_base_addr (cfi));
7953 292 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
7954 : /* memcpy (lhs + shift, rhs + idx*elem_len, elem_len) */
7955 292 : tree elem_len;
7956 292 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7957 153 : elem_len = gfc_conv_descriptor_elem_len (gfc_desc);
7958 : else
7959 139 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
7960 292 : rhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7961 : elem_len, idx);
7962 292 : rhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR,
7963 : pchar_type_node,
7964 : fold_convert (pchar_type_node, data), rhs);
7965 292 : tmp = fold_convert (pvoid_type_node, tmp);
7966 292 : rhs = fold_convert (pvoid_type_node, rhs);
7967 292 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
7968 292 : call = build_call_expr_loc (input_location, call, 3, tmp, rhs,
7969 : elem_len);
7970 292 : gfc_add_expr_to_block (&loop_body,
7971 : fold_convert (void_type_node, call));
7972 584 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7973 : size_var, LT_EXPR,
7974 292 : build_int_cst (TREE_TYPE (idx), 1),
7975 : gfc_finish_block (&loop_body));
7976 : }
7977 517 : call = builtin_decl_explicit (BUILT_IN_FREE);
7978 517 : call = build_call_expr_loc (input_location, call, 1, data);
7979 517 : gfc_add_expr_to_block (&block2, call);
7980 :
7981 : /* if (cfi->base_addr != gfc->data) { copy out; free(var) }; return */
7982 517 : tree tmp2 = gfc_get_cfi_desc_base_addr (cfi);
7983 517 : tmp2 = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7984 517 : tmp2, fold_convert (TREE_TYPE (tmp2), data));
7985 517 : tmp = build3_v (COND_EXPR, tmp2, gfc_finish_block (&block2),
7986 : build_empty_stmt (input_location));
7987 517 : gfc_add_expr_to_block (&block, tmp);
7988 517 : goto done_finally;
7989 : }
7990 :
7991 : /* Update pointer + array data data on exit. */
7992 318 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7993 318 : tmp2 = (!sym->attr.dimension
7994 318 : ? gfc_desc : gfc_conv_descriptor_data_get (gfc_desc));
7995 318 : gfc_add_modify (&block, tmp, fold_convert (TREE_TYPE (tmp), tmp2));
7996 :
7997 : /* Set string length for len=:, only. */
7998 318 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
7999 : {
8000 60 : tmp2 = gfc_get_cfi_desc_elem_len (cfi);
8001 60 : tmp = fold_convert (TREE_TYPE (tmp2), sym->ts.u.cl->backend_decl);
8002 60 : if (sym->ts.kind != 1)
8003 48 : tmp = fold_build2_loc (input_location, MULT_EXPR,
8004 24 : TREE_TYPE (tmp2), tmp,
8005 24 : build_int_cst (TREE_TYPE (tmp2), sym->ts.kind));
8006 60 : gfc_add_modify (&block, tmp2, tmp);
8007 : }
8008 :
8009 318 : if (!sym->attr.dimension)
8010 102 : goto done_finally;
8011 :
8012 216 : gfc_init_block (&block2);
8013 :
8014 : /* Loop: for (i = 0; i < rank; ++i). */
8015 216 : idx = gfc_create_var (TREE_TYPE (rank), "idx");
8016 :
8017 : /* Loop body. */
8018 216 : gfc_init_block (&loop_body);
8019 : /* cfi->dim[i].lower_bound = gfc->dim[i].lbound */
8020 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_lbound (cfi, idx),
8021 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
8022 : /* cfi->dim[i].extent = gfc->dim[i].ubound - gfc->dim[i].lbound + 1. */
8023 216 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
8024 : gfc_conv_descriptor_ubound_get (gfc_desc, idx),
8025 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
8026 216 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type, tmp,
8027 : gfc_index_one_node);
8028 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_extent (cfi, idx), tmp);
8029 : /* d->dim[n].sm = gfc->dim[i].stride * gfc->span); */
8030 216 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
8031 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
8032 : gfc_conv_descriptor_span_get (gfc_desc));
8033 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_sm (cfi, idx), tmp);
8034 :
8035 : /* Generate loop. */
8036 432 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
8037 216 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
8038 : gfc_finish_block (&loop_body));
8039 : /* if (gfc->data != NULL) { block2 }. */
8040 216 : tmp = gfc_get_cfi_desc_base_addr (cfi),
8041 216 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
8042 : tmp, null_pointer_node);
8043 216 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
8044 : build_empty_stmt (input_location));
8045 216 : gfc_add_expr_to_block (&block, tmp);
8046 :
8047 835 : done_finally:
8048 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
8049 835 : if (sym->attr.optional)
8050 : {
8051 180 : tree present = fold_build2_loc (input_location, NE_EXPR,
8052 : boolean_type_node, cfi_desc,
8053 : null_pointer_node);
8054 180 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block),
8055 : build_empty_stmt (input_location));
8056 180 : gfc_add_expr_to_block (finally, tmp);
8057 : }
8058 : else
8059 655 : gfc_add_block_to_block (finally, &block);
8060 : }
8061 :
8062 :
8063 : static void
8064 233 : emit_not_set_warning (gfc_symbol *sym)
8065 : {
8066 233 : if (warn_return_type > 0 && sym == sym->result)
8067 17 : gfc_warning (OPT_Wreturn_type,
8068 : "Return value of function %qs at %L not set",
8069 : sym->name, &sym->declared_at);
8070 233 : if (warn_return_type > 0)
8071 22 : suppress_warning (sym->backend_decl);
8072 233 : }
8073 :
8074 :
8075 : /* Generate code for a function. */
8076 :
8077 : void
8078 84738 : gfc_generate_function_code (gfc_namespace * ns)
8079 : {
8080 84738 : tree fndecl;
8081 84738 : tree old_context;
8082 84738 : tree decl;
8083 84738 : tree tmp;
8084 84738 : tree fpstate = NULL_TREE;
8085 84738 : stmtblock_t init, cleanup, outer_block;
8086 84738 : stmtblock_t body;
8087 84738 : gfc_wrapped_block try_block;
8088 84738 : tree recurcheckvar = NULL_TREE;
8089 84738 : gfc_symbol *sym;
8090 84738 : gfc_symbol *previous_procedure_symbol;
8091 84738 : int rank, ieee;
8092 84738 : bool is_recursive;
8093 :
8094 84738 : sym = ns->proc_name;
8095 84738 : previous_procedure_symbol = current_procedure_symbol;
8096 84738 : current_procedure_symbol = sym;
8097 :
8098 : /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get
8099 : lost or worse. */
8100 84738 : sym->tlink = sym;
8101 :
8102 : /* Create the declaration for functions with global scope. */
8103 84738 : if (!sym->backend_decl)
8104 35315 : gfc_create_function_decl (ns, false);
8105 :
8106 84738 : fndecl = sym->backend_decl;
8107 84738 : old_context = current_function_decl;
8108 :
8109 84738 : if (old_context)
8110 : {
8111 22980 : push_function_context ();
8112 22980 : saved_parent_function_decls = saved_function_decls;
8113 22980 : saved_function_decls = NULL_TREE;
8114 : }
8115 :
8116 84738 : trans_function_start (sym);
8117 84738 : gfc_current_locus = sym->declared_at;
8118 :
8119 84738 : gfc_init_block (&init);
8120 84738 : gfc_init_block (&cleanup);
8121 84738 : gfc_init_block (&outer_block);
8122 :
8123 84738 : if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER)
8124 : {
8125 : /* Copy length backend_decls to all entry point result
8126 : symbols. */
8127 74 : gfc_entry_list *el;
8128 74 : tree backend_decl;
8129 :
8130 74 : gfc_conv_const_charlen (ns->proc_name->ts.u.cl);
8131 74 : backend_decl = ns->proc_name->result->ts.u.cl->backend_decl;
8132 258 : for (el = ns->entries; el; el = el->next)
8133 184 : el->sym->result->ts.u.cl->backend_decl = backend_decl;
8134 : }
8135 :
8136 : /* Translate COMMON blocks. */
8137 84738 : gfc_trans_common (ns);
8138 :
8139 : /* Null the parent fake result declaration if this namespace is
8140 : a module function or an external procedures. */
8141 84738 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8142 59070 : || ns->parent == NULL)
8143 61758 : parent_fake_result_decl = NULL_TREE;
8144 :
8145 : /* For BIND(C):
8146 : - deallocate intent-out allocatable dummy arguments.
8147 : - Create GFC variable which will later be populated by convert_CFI_desc */
8148 84738 : if (sym->attr.is_bind_c)
8149 1899 : for (gfc_formal_arglist *formal = gfc_sym_get_dummy_args (sym);
8150 5917 : formal; formal = formal->next)
8151 : {
8152 4018 : gfc_symbol *fsym = formal->sym;
8153 4018 : if (!is_CFI_desc (fsym, NULL))
8154 2199 : continue;
8155 1819 : if (!fsym->attr.referenced)
8156 : {
8157 72 : gfc_conv_cfi_to_gfc (&init, &cleanup, fsym->backend_decl,
8158 : NULL_TREE, fsym);
8159 72 : continue;
8160 : }
8161 : /* Let's now create a local GFI descriptor. Afterwards:
8162 : desc is the local descriptor,
8163 : desc_p is a pointer to it
8164 : and stored in sym->backend_decl
8165 : GFC_DECL_SAVED_DESCRIPTOR (desc_p) contains the CFI descriptor
8166 : -> PARM_DECL and before sym->backend_decl.
8167 : For scalars, decl == decl_p is a pointer variable. */
8168 1747 : tree desc_p, desc;
8169 1747 : location_t loc = gfc_get_location (&sym->declared_at);
8170 1747 : if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->length)
8171 647 : fsym->ts.u.cl->backend_decl = gfc_create_var (gfc_array_index_type,
8172 : fsym->name);
8173 1100 : else if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->backend_decl)
8174 : {
8175 157 : gfc_se se;
8176 157 : gfc_init_se (&se, NULL );
8177 157 : gfc_conv_expr (&se, fsym->ts.u.cl->length);
8178 157 : gfc_add_block_to_block (&init, &se.pre);
8179 157 : fsym->ts.u.cl->backend_decl = se.expr;
8180 157 : gcc_assert(se.post.head == NULL_TREE);
8181 : }
8182 : /* Nullify, otherwise gfc_sym_type will return the CFI type. */
8183 1747 : tree tmp = fsym->backend_decl;
8184 1747 : fsym->backend_decl = NULL;
8185 1747 : tree type = gfc_sym_type (fsym);
8186 1747 : gcc_assert (POINTER_TYPE_P (type));
8187 1747 : if (POINTER_TYPE_P (TREE_TYPE (type)))
8188 : /* For instance, allocatable scalars. */
8189 105 : type = TREE_TYPE (type);
8190 1747 : if (TREE_CODE (type) == REFERENCE_TYPE)
8191 1179 : type = build_pointer_type (TREE_TYPE (type));
8192 1747 : desc_p = build_decl (loc, VAR_DECL, get_identifier (fsym->name), type);
8193 1747 : if (!fsym->attr.dimension)
8194 : desc = desc_p;
8195 1583 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (TREE_TYPE (desc_p))))
8196 : {
8197 : /* Character(len=*) explicit-size/assumed-size array. */
8198 254 : desc = desc_p;
8199 254 : gfc_build_qualified_array (desc, fsym);
8200 : }
8201 : else
8202 : {
8203 1329 : tree size = size_in_bytes (TREE_TYPE (TREE_TYPE (desc_p)));
8204 1329 : tree call = builtin_decl_explicit (BUILT_IN_ALLOCA);
8205 1329 : call = build_call_expr_loc (input_location, call, 1, size);
8206 1329 : gfc_add_modify (&outer_block, desc_p,
8207 1329 : fold_convert (TREE_TYPE(desc_p), call));
8208 1329 : desc = build_fold_indirect_ref_loc (input_location, desc_p);
8209 : }
8210 1747 : pushdecl (desc_p);
8211 1747 : if (fsym->attr.optional)
8212 : {
8213 311 : gfc_allocate_lang_decl (desc_p);
8214 311 : GFC_DECL_OPTIONAL_ARGUMENT (desc_p) = 1;
8215 : }
8216 1747 : fsym->backend_decl = desc_p;
8217 1747 : gfc_conv_cfi_to_gfc (&init, &cleanup, tmp, desc, fsym);
8218 : }
8219 :
8220 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
8221 : especially as some late diagnostic is only done on tree level. */
8222 84738 : if (flag_openmp)
8223 8658 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
8224 :
8225 84738 : gfc_generate_contained_functions (ns);
8226 :
8227 84738 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8228 84738 : generate_local_vars (ns);
8229 :
8230 84738 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8231 402 : generate_coarray_init (ns);
8232 :
8233 : /* Keep the parent fake result declaration in module functions
8234 : or external procedures. */
8235 84738 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8236 59070 : || ns->parent == NULL)
8237 61758 : current_fake_result_decl = parent_fake_result_decl;
8238 : else
8239 22980 : current_fake_result_decl = NULL_TREE;
8240 :
8241 169476 : is_recursive = sym->attr.recursive
8242 84738 : || (sym->attr.entry_master
8243 667 : && sym->ns->entries->sym->attr.recursive);
8244 84738 : if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION)
8245 1009 : && !is_recursive && !flag_recursive && !sym->attr.artificial)
8246 : {
8247 840 : char * msg;
8248 :
8249 840 : msg = xasprintf ("Recursive call to nonrecursive procedure '%s'",
8250 : sym->name);
8251 840 : recurcheckvar = gfc_create_var (logical_type_node, "is_recursive");
8252 840 : TREE_STATIC (recurcheckvar) = 1;
8253 840 : DECL_INITIAL (recurcheckvar) = logical_false_node;
8254 840 : gfc_add_expr_to_block (&init, recurcheckvar);
8255 840 : gfc_trans_runtime_check (true, false, recurcheckvar, &init,
8256 : &sym->declared_at, msg);
8257 840 : gfc_add_modify (&init, recurcheckvar, logical_true_node);
8258 840 : free (msg);
8259 : }
8260 :
8261 : /* Check if an IEEE module is used in the procedure. If so, save
8262 : the floating point state. */
8263 84738 : ieee = is_ieee_module_used (ns);
8264 84738 : if (ieee)
8265 439 : fpstate = gfc_save_fp_state (&init);
8266 :
8267 : /* Now generate the code for the body of this function. */
8268 84738 : gfc_init_block (&body);
8269 :
8270 84738 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8271 84738 : && sym->attr.subroutine)
8272 : {
8273 42 : tree alternate_return;
8274 42 : alternate_return = gfc_get_fake_result_decl (sym, 0);
8275 42 : gfc_add_modify (&body, alternate_return, integer_zero_node);
8276 : }
8277 :
8278 84738 : if (ns->entries)
8279 : {
8280 : /* Jump to the correct entry point. */
8281 667 : tmp = gfc_trans_entry_master_switch (ns->entries);
8282 667 : gfc_add_expr_to_block (&body, tmp);
8283 : }
8284 :
8285 : /* If bounds-checking is enabled, generate code to check passed in actual
8286 : arguments against the expected dummy argument attributes (e.g. string
8287 : lengths). */
8288 84738 : if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c)
8289 2905 : add_argument_checking (&body, sym);
8290 :
8291 84738 : finish_oacc_declare (ns, sym, false);
8292 :
8293 84738 : if (gfc_current_ns != ns)
8294 : {
8295 48648 : gfc_namespace *old_current_ns = gfc_current_ns;
8296 48648 : gfc_current_ns = ns;
8297 48648 : tmp = gfc_trans_code (ns->code);
8298 48648 : gfc_current_ns = old_current_ns;
8299 : }
8300 : else
8301 36090 : tmp = gfc_trans_code (ns->code);
8302 :
8303 84738 : gfc_add_expr_to_block (&body, tmp);
8304 :
8305 : /* This permits the return value to be correctly initialized, even when the
8306 : function result was not referenced. */
8307 84738 : if (sym->abr_modproc_decl
8308 247 : && IS_PDT (sym)
8309 7 : && !sym->attr.allocatable
8310 7 : && sym->result == sym
8311 84745 : && get_proc_result (sym) == NULL_TREE)
8312 : {
8313 1 : gfc_get_fake_result_decl (sym->result, 0);
8314 : /* TODO: move to the appropriate place in resolve.cc. */
8315 1 : emit_not_set_warning (sym);
8316 : }
8317 :
8318 84738 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8319 84738 : || (sym->result && sym->result != sym
8320 1183 : && sym->result->ts.type == BT_DERIVED
8321 167 : && sym->result->ts.u.derived->attr.alloc_comp))
8322 : {
8323 12086 : bool artificial_result_decl = false;
8324 12086 : tree result = get_proc_result (sym);
8325 12086 : gfc_symbol *rsym = sym == sym->result ? sym : sym->result;
8326 :
8327 : /* Make sure that a function returning an object with
8328 : alloc/pointer_components always has a result, where at least
8329 : the allocatable/pointer components are set to zero. */
8330 12086 : if (result == NULL_TREE && sym->attr.function
8331 232 : && ((sym->result->ts.type == BT_DERIVED
8332 28 : && (sym->attr.allocatable
8333 22 : || sym->attr.pointer
8334 20 : || sym->result->ts.u.derived->attr.alloc_comp
8335 20 : || sym->result->ts.u.derived->attr.pointer_comp))
8336 224 : || (sym->result->ts.type == BT_CLASS
8337 38 : && (CLASS_DATA (sym->result)->attr.allocatable
8338 11 : || CLASS_DATA (sym->result)->attr.class_pointer
8339 0 : || CLASS_DATA (sym->result)->attr.alloc_comp
8340 0 : || CLASS_DATA (sym->result)->attr.pointer_comp))))
8341 : {
8342 46 : artificial_result_decl = true;
8343 46 : result = gfc_get_fake_result_decl (sym->result, 0);
8344 : }
8345 :
8346 12086 : if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer)
8347 : {
8348 11470 : if (sym->attr.allocatable && sym->attr.dimension == 0
8349 101 : && sym->result == sym)
8350 75 : gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result),
8351 : null_pointer_node));
8352 11395 : else if (sym->ts.type == BT_CLASS
8353 733 : && CLASS_DATA (sym)->attr.allocatable
8354 503 : && CLASS_DATA (sym)->attr.dimension == 0
8355 316 : && sym->result == sym)
8356 : {
8357 135 : tmp = gfc_class_data_get (result);
8358 135 : gfc_add_modify (&init, tmp,
8359 135 : fold_convert (TREE_TYPE (tmp),
8360 : null_pointer_node));
8361 135 : gfc_reset_vptr (&init, nullptr, result,
8362 135 : sym->result->ts.u.derived);
8363 : }
8364 11260 : else if (sym->ts.type == BT_DERIVED
8365 1249 : && !sym->attr.allocatable)
8366 : {
8367 1224 : gfc_expr *init_exp;
8368 : /* Arrays are not initialized using the default initializer of
8369 : their elements. Therefore only check if a default
8370 : initializer is available when the result is scalar. */
8371 1224 : init_exp = rsym->as ? NULL
8372 1191 : : gfc_generate_initializer (&rsym->ts, true);
8373 1191 : if (init_exp)
8374 : {
8375 648 : tmp = gfc_trans_structure_assign (result, init_exp, 0);
8376 648 : gfc_free_expr (init_exp);
8377 648 : gfc_add_expr_to_block (&init, tmp);
8378 : }
8379 :
8380 1224 : if (rsym->ts.u.derived->attr.alloc_comp)
8381 : {
8382 451 : rank = rsym->as ? rsym->as->rank : 0;
8383 451 : tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result,
8384 : rank);
8385 451 : gfc_prepend_expr_to_block (&body, tmp);
8386 : }
8387 : }
8388 : }
8389 :
8390 12086 : if (result == NULL_TREE || artificial_result_decl)
8391 : /* TODO: move to the appropriate place in resolve.cc. */
8392 232 : emit_not_set_warning (sym);
8393 :
8394 232 : if (result != NULL_TREE)
8395 11900 : gfc_add_expr_to_block (&body, gfc_generate_return ());
8396 : }
8397 :
8398 : /* Reset recursion-check variable. */
8399 84738 : if (recurcheckvar != NULL_TREE)
8400 : {
8401 840 : gfc_add_modify (&cleanup, recurcheckvar, logical_false_node);
8402 840 : recurcheckvar = NULL;
8403 : }
8404 :
8405 : /* If IEEE modules are loaded, restore the floating-point state. */
8406 84738 : if (ieee)
8407 439 : gfc_restore_fp_state (&cleanup, fpstate);
8408 :
8409 : /* Finish the function body and add init and cleanup code. */
8410 84738 : tmp = gfc_finish_block (&body);
8411 : /* Add code to create and cleanup arrays. */
8412 84738 : gfc_start_wrapped_block (&try_block, tmp);
8413 84738 : gfc_trans_deferred_vars (sym, &try_block);
8414 84738 : gfc_add_init_cleanup (&try_block, gfc_finish_block (&init),
8415 : gfc_finish_block (&cleanup));
8416 :
8417 : /* Add all the decls we created during processing. */
8418 84738 : decl = nreverse (saved_function_decls);
8419 463214 : while (decl)
8420 : {
8421 293738 : tree next;
8422 :
8423 293738 : next = DECL_CHAIN (decl);
8424 293738 : DECL_CHAIN (decl) = NULL_TREE;
8425 293738 : pushdecl (decl);
8426 293738 : decl = next;
8427 : }
8428 84738 : saved_function_decls = NULL_TREE;
8429 :
8430 84738 : gfc_add_expr_to_block (&outer_block, gfc_finish_wrapped_block (&try_block));
8431 84738 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&outer_block);
8432 84738 : decl = getdecls ();
8433 :
8434 : /* Finish off this function and send it for code generation. */
8435 84738 : poplevel (1, 1);
8436 84738 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8437 :
8438 169476 : DECL_SAVED_TREE (fndecl)
8439 169476 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
8440 169476 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
8441 :
8442 : /* Output the GENERIC tree. */
8443 84738 : dump_function (TDI_original, fndecl);
8444 :
8445 : /* Store the end of the function, so that we get good line number
8446 : info for the epilogue. */
8447 84738 : cfun->function_end_locus = input_location;
8448 :
8449 : /* We're leaving the context of this function, so zap cfun.
8450 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
8451 : tree_rest_of_compilation. */
8452 84738 : set_cfun (NULL);
8453 :
8454 84738 : if (old_context)
8455 : {
8456 22980 : pop_function_context ();
8457 22980 : saved_function_decls = saved_parent_function_decls;
8458 : }
8459 84738 : current_function_decl = old_context;
8460 :
8461 84738 : if (decl_function_context (fndecl))
8462 : {
8463 : /* Register this function with cgraph just far enough to get it
8464 : added to our parent's nested function list.
8465 : If there are static coarrays in this function, the nested _caf_init
8466 : function has already called cgraph_create_node, which also created
8467 : the cgraph node for this function. */
8468 22980 : if (!has_coarray_vars_or_accessors || flag_coarray != GFC_FCOARRAY_LIB)
8469 22776 : (void) cgraph_node::get_create (fndecl);
8470 : }
8471 : else
8472 61758 : cgraph_node::finalize_function (fndecl, true);
8473 :
8474 84738 : gfc_trans_use_stmts (ns);
8475 84738 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
8476 :
8477 84738 : if (sym->attr.is_main_program)
8478 26153 : create_main_function (fndecl);
8479 :
8480 84738 : current_procedure_symbol = previous_procedure_symbol;
8481 84738 : }
8482 :
8483 :
8484 : void
8485 31430 : gfc_generate_constructors (void)
8486 : {
8487 31430 : gcc_assert (gfc_static_ctors == NULL_TREE);
8488 : #if 0
8489 : tree fnname;
8490 : tree type;
8491 : tree fndecl;
8492 : tree decl;
8493 : tree tmp;
8494 :
8495 : if (gfc_static_ctors == NULL_TREE)
8496 : return;
8497 :
8498 : fnname = get_file_function_name ("I");
8499 : type = build_function_type_list (void_type_node, NULL_TREE);
8500 :
8501 : fndecl = build_decl (input_location,
8502 : FUNCTION_DECL, fnname, type);
8503 : TREE_PUBLIC (fndecl) = 1;
8504 :
8505 : decl = build_decl (input_location,
8506 : RESULT_DECL, NULL_TREE, void_type_node);
8507 : DECL_ARTIFICIAL (decl) = 1;
8508 : DECL_IGNORED_P (decl) = 1;
8509 : DECL_CONTEXT (decl) = fndecl;
8510 : DECL_RESULT (fndecl) = decl;
8511 :
8512 : pushdecl (fndecl);
8513 :
8514 : current_function_decl = fndecl;
8515 :
8516 : rest_of_decl_compilation (fndecl, 1, 0);
8517 :
8518 : make_decl_rtl (fndecl);
8519 :
8520 : allocate_struct_function (fndecl, false);
8521 :
8522 : pushlevel ();
8523 :
8524 : for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors))
8525 : {
8526 : tmp = build_call_expr_loc (input_location,
8527 : TREE_VALUE (gfc_static_ctors), 0);
8528 : DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp);
8529 : }
8530 :
8531 : decl = getdecls ();
8532 : poplevel (1, 1);
8533 :
8534 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8535 : DECL_SAVED_TREE (fndecl)
8536 : = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl),
8537 : DECL_INITIAL (fndecl));
8538 :
8539 : free_after_parsing (cfun);
8540 : free_after_compilation (cfun);
8541 :
8542 : tree_rest_of_compilation (fndecl);
8543 :
8544 : current_function_decl = NULL_TREE;
8545 : #endif
8546 31430 : }
8547 :
8548 :
8549 : /* Helper function for checking of variables declared in a BLOCK DATA program
8550 : unit. */
8551 :
8552 : static void
8553 300 : check_block_data_decls (gfc_symbol * sym)
8554 : {
8555 300 : if (warn_unused_variable
8556 13 : && sym->attr.flavor == FL_VARIABLE
8557 7 : && !sym->attr.in_common
8558 3 : && !sym->attr.artificial)
8559 : {
8560 2 : gfc_warning (OPT_Wunused_variable,
8561 : "Symbol %qs at %L is declared in a BLOCK DATA "
8562 : "program unit but is not in a COMMON block",
8563 : sym->name, &sym->declared_at);
8564 : }
8565 300 : }
8566 :
8567 :
8568 : /* Translates a BLOCK DATA program unit. This means emitting the
8569 : commons contained therein plus their initializations. We also emit
8570 : a globally visible symbol to make sure that each BLOCK DATA program
8571 : unit remains unique. */
8572 :
8573 : void
8574 72 : gfc_generate_block_data (gfc_namespace * ns)
8575 : {
8576 72 : tree decl;
8577 72 : tree id;
8578 :
8579 : /* Tell the backend the source location of the block data. */
8580 72 : if (ns->proc_name)
8581 29 : input_location = gfc_get_location (&ns->proc_name->declared_at);
8582 : else
8583 43 : input_location = gfc_get_location (&gfc_current_locus);
8584 :
8585 : /* Process the DATA statements. */
8586 72 : gfc_trans_common (ns);
8587 :
8588 : /* Check for variables declared in BLOCK DATA but not used in COMMON. */
8589 72 : gfc_traverse_ns (ns, check_block_data_decls);
8590 :
8591 : /* Create a global symbol with the mane of the block data. This is to
8592 : generate linker errors if the same name is used twice. It is never
8593 : really used. */
8594 72 : if (ns->proc_name)
8595 29 : id = gfc_sym_mangled_function_id (ns->proc_name);
8596 : else
8597 43 : id = get_identifier ("__BLOCK_DATA__");
8598 :
8599 72 : decl = build_decl (input_location,
8600 : VAR_DECL, id, gfc_array_index_type);
8601 72 : TREE_PUBLIC (decl) = 1;
8602 72 : TREE_STATIC (decl) = 1;
8603 72 : DECL_IGNORED_P (decl) = 1;
8604 :
8605 72 : pushdecl (decl);
8606 72 : rest_of_decl_compilation (decl, 1, 0);
8607 72 : }
8608 :
8609 : void
8610 14012 : gfc_start_saved_local_decls ()
8611 : {
8612 14012 : gcc_checking_assert (current_function_decl != NULL_TREE);
8613 14012 : saved_local_decls = NULL_TREE;
8614 14012 : }
8615 :
8616 : void
8617 14012 : gfc_stop_saved_local_decls ()
8618 : {
8619 14012 : tree decl = nreverse (saved_local_decls);
8620 41001 : while (decl)
8621 : {
8622 12977 : tree next;
8623 :
8624 12977 : next = DECL_CHAIN (decl);
8625 12977 : DECL_CHAIN (decl) = NULL_TREE;
8626 12977 : pushdecl (decl);
8627 12977 : decl = next;
8628 : }
8629 14012 : saved_local_decls = NULL_TREE;
8630 14012 : }
8631 :
8632 : /* Process the local variables of a BLOCK construct. */
8633 :
8634 : void
8635 13964 : gfc_process_block_locals (gfc_namespace* ns)
8636 : {
8637 13964 : gfc_start_saved_local_decls ();
8638 13964 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8639 :
8640 13964 : generate_local_vars (ns);
8641 :
8642 13964 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8643 41 : generate_coarray_init (ns);
8644 13964 : gfc_stop_saved_local_decls ();
8645 13964 : }
8646 :
8647 :
8648 : #include "gt-fortran-trans-decl.h"
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