Line data Source code
1 : /* Backend function setup
2 : Copyright (C) 2002-2026 Free Software Foundation, Inc.
3 : Contributed by Paul Brook
4 :
5 : This file is part of GCC.
6 :
7 : GCC is free software; you can redistribute it and/or modify it under
8 : the terms of the GNU General Public License as published by the Free
9 : Software Foundation; either version 3, or (at your option) any later
10 : version.
11 :
12 : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 : WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 : FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 : for more details.
16 :
17 : You should have received a copy of the GNU General Public License
18 : along with GCC; see the file COPYING3. If not see
19 : <http://www.gnu.org/licenses/>. */
20 :
21 : /* trans-decl.cc -- Handling of backend function and variable decls, etc */
22 :
23 : #include "config.h"
24 : #include "system.h"
25 : #include "coretypes.h"
26 : #include "target.h"
27 : #include "function.h"
28 : #include "tree.h"
29 : #include "gfortran.h"
30 : #include "gimple-expr.h" /* For create_tmp_var_raw. */
31 : #include "trans.h"
32 : #include "stringpool.h"
33 : #include "cgraph.h"
34 : #include "fold-const.h"
35 : #include "stor-layout.h"
36 : #include "varasm.h"
37 : #include "attribs.h"
38 : #include "dumpfile.h"
39 : #include "toplev.h" /* For announce_function. */
40 : #include "debug.h"
41 : #include "constructor.h"
42 : #include "trans-types.h"
43 : #include "trans-array.h"
44 : #include "trans-const.h"
45 : /* Only for gfc_trans_code. Shouldn't need to include this. */
46 : #include "trans-stmt.h"
47 : #include "trans-descriptor.h"
48 : #include "gomp-constants.h"
49 : #include "gimplify.h"
50 : #include "context.h"
51 : #include "omp-general.h"
52 : #include "omp-offload.h"
53 : #include "attr-fnspec.h"
54 : #include "tree-iterator.h"
55 : #include "dependency.h"
56 :
57 : #define MAX_LABEL_VALUE 99999
58 :
59 :
60 : /* Holds the result of the function if no result variable specified. */
61 :
62 : static GTY(()) tree current_fake_result_decl;
63 : static GTY(()) tree parent_fake_result_decl;
64 :
65 :
66 : /* Holds the variable DECLs for the current function. */
67 :
68 : static GTY(()) tree saved_function_decls;
69 : static GTY(()) tree saved_parent_function_decls;
70 :
71 : /* Holds the variable DECLs that are locals. */
72 :
73 : static GTY(()) tree saved_local_decls;
74 :
75 : /* The namespace of the module we're currently generating. Only used while
76 : outputting decls for module variables. Do not rely on this being set. */
77 :
78 : static gfc_namespace *module_namespace;
79 :
80 : /* The currently processed procedure symbol. */
81 : static gfc_symbol* current_procedure_symbol = NULL;
82 :
83 : /* The currently processed module. */
84 : static struct module_htab_entry *cur_module;
85 :
86 : /* With -fcoarray=lib: For generating the registering call
87 : of static coarrays. */
88 : static bool has_coarray_vars_or_accessors;
89 : static stmtblock_t caf_init_block;
90 :
91 :
92 : /* List of static constructor functions. */
93 :
94 : tree gfc_static_ctors;
95 :
96 :
97 : /* Whether we've seen a symbol from an IEEE module in the namespace. */
98 : static int seen_ieee_symbol;
99 :
100 : /* Function declarations for builtin library functions. */
101 :
102 : tree gfor_fndecl_pause_numeric;
103 : tree gfor_fndecl_pause_string;
104 : tree gfor_fndecl_stop_numeric;
105 : tree gfor_fndecl_stop_string;
106 : tree gfor_fndecl_error_stop_numeric;
107 : tree gfor_fndecl_error_stop_string;
108 : tree gfor_fndecl_runtime_error;
109 : tree gfor_fndecl_runtime_error_at;
110 : tree gfor_fndecl_runtime_warning_at;
111 : tree gfor_fndecl_os_error_at;
112 : tree gfor_fndecl_generate_error;
113 : tree gfor_fndecl_set_args;
114 : tree gfor_fndecl_set_fpe;
115 : tree gfor_fndecl_set_options;
116 : tree gfor_fndecl_set_convert;
117 : tree gfor_fndecl_set_record_marker;
118 : tree gfor_fndecl_set_max_subrecord_length;
119 : tree gfor_fndecl_ctime;
120 : tree gfor_fndecl_fdate;
121 : tree gfor_fndecl_ttynam;
122 : tree gfor_fndecl_in_pack;
123 : tree gfor_fndecl_in_unpack;
124 : tree gfor_fndecl_in_pack_class;
125 : tree gfor_fndecl_in_unpack_class;
126 : tree gfor_fndecl_associated;
127 : tree gfor_fndecl_system_clock4;
128 : tree gfor_fndecl_system_clock8;
129 : tree gfor_fndecl_ieee_procedure_entry;
130 : tree gfor_fndecl_ieee_procedure_exit;
131 :
132 : /* Coarray run-time library function decls. */
133 : tree gfor_fndecl_caf_init;
134 : tree gfor_fndecl_caf_finalize;
135 : tree gfor_fndecl_caf_this_image;
136 : tree gfor_fndecl_caf_num_images;
137 : tree gfor_fndecl_caf_register;
138 : tree gfor_fndecl_caf_deregister;
139 : tree gfor_fndecl_caf_register_accessor;
140 : tree gfor_fndecl_caf_register_accessors_finish;
141 : tree gfor_fndecl_caf_get_remote_function_index;
142 : tree gfor_fndecl_caf_get_from_remote;
143 : tree gfor_fndecl_caf_send_to_remote;
144 : tree gfor_fndecl_caf_transfer_between_remotes;
145 : tree gfor_fndecl_caf_sync_all;
146 : tree gfor_fndecl_caf_sync_memory;
147 : tree gfor_fndecl_caf_sync_images;
148 : tree gfor_fndecl_caf_stop_str;
149 : tree gfor_fndecl_caf_stop_numeric;
150 : tree gfor_fndecl_caf_error_stop;
151 : tree gfor_fndecl_caf_error_stop_str;
152 : tree gfor_fndecl_caf_atomic_def;
153 : tree gfor_fndecl_caf_atomic_ref;
154 : tree gfor_fndecl_caf_atomic_cas;
155 : tree gfor_fndecl_caf_atomic_op;
156 : tree gfor_fndecl_caf_lock;
157 : tree gfor_fndecl_caf_unlock;
158 : tree gfor_fndecl_caf_event_post;
159 : tree gfor_fndecl_caf_event_wait;
160 : tree gfor_fndecl_caf_event_query;
161 : tree gfor_fndecl_caf_fail_image;
162 : tree gfor_fndecl_caf_failed_images;
163 : tree gfor_fndecl_caf_image_status;
164 : tree gfor_fndecl_caf_stopped_images;
165 : tree gfor_fndecl_caf_form_team;
166 : tree gfor_fndecl_caf_change_team;
167 : tree gfor_fndecl_caf_end_team;
168 : tree gfor_fndecl_caf_sync_team;
169 : tree gfor_fndecl_caf_get_team;
170 : tree gfor_fndecl_caf_team_number;
171 : tree gfor_fndecl_co_broadcast;
172 : tree gfor_fndecl_co_max;
173 : tree gfor_fndecl_co_min;
174 : tree gfor_fndecl_co_reduce;
175 : tree gfor_fndecl_co_sum;
176 : tree gfor_fndecl_caf_is_present_on_remote;
177 : tree gfor_fndecl_caf_random_init;
178 :
179 :
180 : /* Math functions. Many other math functions are handled in
181 : trans-intrinsic.cc. */
182 :
183 : gfc_powdecl_list gfor_fndecl_math_powi[4][3];
184 : tree gfor_fndecl_unsigned_pow_list[5][5];
185 :
186 : tree gfor_fndecl_math_ishftc4;
187 : tree gfor_fndecl_math_ishftc8;
188 : tree gfor_fndecl_math_ishftc16;
189 :
190 :
191 : /* String functions. */
192 :
193 : tree gfor_fndecl_compare_string;
194 : tree gfor_fndecl_concat_string;
195 : tree gfor_fndecl_string_len_trim;
196 : tree gfor_fndecl_string_index;
197 : tree gfor_fndecl_string_scan;
198 : tree gfor_fndecl_string_verify;
199 : tree gfor_fndecl_string_trim;
200 : tree gfor_fndecl_string_minmax;
201 : tree gfor_fndecl_string_split;
202 : tree gfor_fndecl_adjustl;
203 : tree gfor_fndecl_adjustr;
204 : tree gfor_fndecl_select_string;
205 : tree gfor_fndecl_compare_string_char4;
206 : tree gfor_fndecl_concat_string_char4;
207 : tree gfor_fndecl_string_len_trim_char4;
208 : tree gfor_fndecl_string_index_char4;
209 : tree gfor_fndecl_string_scan_char4;
210 : tree gfor_fndecl_string_verify_char4;
211 : tree gfor_fndecl_string_trim_char4;
212 : tree gfor_fndecl_string_minmax_char4;
213 : tree gfor_fndecl_string_split_char4;
214 : tree gfor_fndecl_adjustl_char4;
215 : tree gfor_fndecl_adjustr_char4;
216 : tree gfor_fndecl_select_string_char4;
217 :
218 :
219 : /* Conversion between character kinds. */
220 : tree gfor_fndecl_convert_char1_to_char4;
221 : tree gfor_fndecl_convert_char4_to_char1;
222 :
223 :
224 : /* Other misc. runtime library functions. */
225 : tree gfor_fndecl_iargc;
226 : tree gfor_fndecl_kill;
227 : tree gfor_fndecl_kill_sub;
228 : tree gfor_fndecl_is_contiguous0;
229 : tree gfor_fndecl_fstat_i4_sub;
230 : tree gfor_fndecl_fstat_i8_sub;
231 : tree gfor_fndecl_lstat_i4_sub;
232 : tree gfor_fndecl_lstat_i8_sub;
233 : tree gfor_fndecl_stat_i4_sub;
234 : tree gfor_fndecl_stat_i8_sub;
235 :
236 :
237 : /* Intrinsic functions implemented in Fortran. */
238 : tree gfor_fndecl_sc_kind;
239 : tree gfor_fndecl_si_kind;
240 : tree gfor_fndecl_sl_kind;
241 : tree gfor_fndecl_sr_kind;
242 :
243 : /* BLAS gemm functions. */
244 : tree gfor_fndecl_sgemm;
245 : tree gfor_fndecl_dgemm;
246 : tree gfor_fndecl_cgemm;
247 : tree gfor_fndecl_zgemm;
248 :
249 : /* RANDOM_INIT function. */
250 : tree gfor_fndecl_random_init; /* libgfortran, 1 image only. */
251 :
252 : /* Deep copy helper for recursive allocatable array components. */
253 : tree gfor_fndecl_cfi_deep_copy_array;
254 :
255 : static void
256 5270 : gfc_add_decl_to_parent_function (tree decl)
257 : {
258 5270 : gcc_assert (decl);
259 5270 : DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl);
260 5270 : DECL_NONLOCAL (decl) = 1;
261 5270 : DECL_CHAIN (decl) = saved_parent_function_decls;
262 5270 : saved_parent_function_decls = decl;
263 5270 : }
264 :
265 : void
266 299295 : gfc_add_decl_to_function (tree decl)
267 : {
268 299295 : gcc_assert (decl);
269 299295 : TREE_USED (decl) = 1;
270 299295 : DECL_CONTEXT (decl) = current_function_decl;
271 299295 : DECL_CHAIN (decl) = saved_function_decls;
272 299295 : saved_function_decls = decl;
273 299295 : }
274 :
275 : static void
276 13514 : add_decl_as_local (tree decl)
277 : {
278 13514 : gcc_assert (decl);
279 13514 : TREE_USED (decl) = 1;
280 13514 : DECL_CONTEXT (decl) = current_function_decl;
281 13514 : DECL_CHAIN (decl) = saved_local_decls;
282 13514 : saved_local_decls = decl;
283 13514 : }
284 :
285 :
286 : /* Build a backend label declaration. Set TREE_USED for named labels.
287 : The context of the label is always the current_function_decl. All
288 : labels are marked artificial. */
289 :
290 : tree
291 635675 : gfc_build_label_decl (tree label_id)
292 : {
293 : /* 2^32 temporaries should be enough. */
294 635675 : static unsigned int tmp_num = 1;
295 635675 : tree label_decl;
296 635675 : char *label_name;
297 :
298 635675 : if (label_id == NULL_TREE)
299 : {
300 : /* Build an internal label name. */
301 632100 : ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++);
302 632100 : label_id = get_identifier (label_name);
303 : }
304 : else
305 635675 : label_name = NULL;
306 :
307 : /* Build the LABEL_DECL node. Labels have no type. */
308 635675 : label_decl = build_decl (input_location,
309 : LABEL_DECL, label_id, void_type_node);
310 635675 : DECL_CONTEXT (label_decl) = current_function_decl;
311 635675 : SET_DECL_MODE (label_decl, VOIDmode);
312 :
313 : /* We always define the label as used, even if the original source
314 : file never references the label. We don't want all kinds of
315 : spurious warnings for old-style Fortran code with too many
316 : labels. */
317 635675 : TREE_USED (label_decl) = 1;
318 :
319 635675 : DECL_ARTIFICIAL (label_decl) = 1;
320 635675 : return label_decl;
321 : }
322 :
323 :
324 : /* Set the backend source location of a decl. */
325 :
326 : void
327 180637 : gfc_set_decl_location (tree decl, locus * loc)
328 : {
329 180637 : DECL_SOURCE_LOCATION (decl) = gfc_get_location (loc);
330 180637 : }
331 :
332 :
333 : /* Return the backend label declaration for a given label structure,
334 : or create it if it doesn't exist yet. */
335 :
336 : tree
337 5959 : gfc_get_label_decl (gfc_st_label * lp)
338 : {
339 5959 : if (lp->backend_decl)
340 : return lp->backend_decl;
341 : else
342 : {
343 3575 : char label_name[GFC_MAX_SYMBOL_LEN + 1];
344 3575 : tree label_decl;
345 :
346 : /* Validate the label declaration from the front end. */
347 3575 : gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE);
348 :
349 : /* Build a mangled name for the label. */
350 3575 : if (lp->omp_region)
351 11 : sprintf (label_name, "__label_%d_%.6d", lp->omp_region, lp->value);
352 : else
353 3564 : sprintf (label_name, "__label_%.6d", lp->value);
354 :
355 : /* Build the LABEL_DECL node. */
356 3575 : label_decl = gfc_build_label_decl (get_identifier (label_name));
357 :
358 : /* Tell the debugger where the label came from. */
359 3575 : if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */
360 3575 : gfc_set_decl_location (label_decl, &lp->where);
361 : else
362 0 : DECL_ARTIFICIAL (label_decl) = 1;
363 :
364 : /* Store the label in the label list and return the LABEL_DECL. */
365 3575 : lp->backend_decl = label_decl;
366 3575 : return label_decl;
367 : }
368 : }
369 :
370 : /* Return the name of an identifier. */
371 :
372 : static const char *
373 428577 : sym_identifier (gfc_symbol *sym)
374 : {
375 428577 : if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0)
376 : return "MAIN__";
377 : else
378 424094 : return sym->name;
379 : }
380 :
381 : /* Convert a gfc_symbol to an identifier of the same name. */
382 :
383 : static tree
384 428577 : gfc_sym_identifier (gfc_symbol * sym)
385 : {
386 428577 : return get_identifier (sym_identifier (sym));
387 : }
388 :
389 : /* Construct mangled name from symbol name. */
390 :
391 : static const char *
392 19392 : mangled_identifier (gfc_symbol *sym)
393 : {
394 19392 : gfc_symbol *proc = sym->ns->proc_name;
395 19392 : static char name[3*GFC_MAX_MANGLED_SYMBOL_LEN + 14];
396 : /* Prevent the mangling of identifiers that have an assigned
397 : binding label (mainly those that are bind(c)). */
398 :
399 19392 : if (sym->attr.is_bind_c == 1 && sym->binding_label)
400 : return sym->binding_label;
401 :
402 19266 : if (!sym->fn_result_spec
403 57 : || (sym->module && !(proc && proc->attr.flavor == FL_PROCEDURE)))
404 : {
405 19217 : if (sym->module == NULL)
406 0 : return sym_identifier (sym);
407 : else
408 19217 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
409 : }
410 : else
411 : {
412 : /* This is an entity that is actually local to a module procedure
413 : that appears in the result specification expression. Since
414 : sym->module will be a zero length string, we use ns->proc_name
415 : to provide the module name instead. */
416 49 : if (proc && proc->module)
417 48 : snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s",
418 : proc->module, proc->name, sym->name);
419 : else
420 1 : snprintf (name, sizeof name, "__%s_PROC_%s",
421 : proc->name, sym->name);
422 : }
423 :
424 : return name;
425 : }
426 :
427 : /* Get mangled identifier, adding the symbol to the global table if
428 : it is not yet already there. */
429 :
430 : static tree
431 19243 : gfc_sym_mangled_identifier (gfc_symbol * sym)
432 : {
433 19243 : tree result;
434 19243 : gfc_gsymbol *gsym;
435 19243 : const char *name;
436 :
437 19243 : name = mangled_identifier (sym);
438 19243 : result = get_identifier (name);
439 :
440 19243 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
441 19243 : if (gsym == NULL)
442 : {
443 19060 : gsym = gfc_get_gsymbol (name, false);
444 19060 : gsym->ns = sym->ns;
445 19060 : gsym->sym_name = sym->name;
446 : }
447 :
448 19243 : return result;
449 : }
450 :
451 : /* Construct mangled function name from symbol name. */
452 :
453 : static tree
454 83629 : gfc_sym_mangled_function_id (gfc_symbol * sym)
455 : {
456 83629 : int has_underscore;
457 83629 : char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1];
458 :
459 : /* It may be possible to simply use the binding label if it's
460 : provided, and remove the other checks. Then we could use it
461 : for other things if we wished. */
462 83629 : if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) &&
463 3473 : sym->binding_label)
464 : /* use the binding label rather than the mangled name */
465 3463 : return get_identifier (sym->binding_label);
466 :
467 80166 : if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL
468 27900 : || (sym->module != NULL && (sym->attr.external
469 26667 : || sym->attr.if_source == IFSRC_IFBODY)))
470 53499 : && !sym->attr.module_procedure)
471 : {
472 : /* Main program is mangled into MAIN__. */
473 53063 : if (sym->attr.is_main_program)
474 26786 : return get_identifier ("MAIN__");
475 :
476 : /* Intrinsic procedures are never mangled. */
477 26277 : if (sym->attr.proc == PROC_INTRINSIC)
478 11126 : return get_identifier (sym->name);
479 :
480 15151 : if (flag_underscoring)
481 : {
482 14224 : has_underscore = strchr (sym->name, '_') != 0;
483 14224 : if (flag_second_underscore && has_underscore)
484 201 : snprintf (name, sizeof name, "%s__", sym->name);
485 : else
486 14023 : snprintf (name, sizeof name, "%s_", sym->name);
487 14224 : return get_identifier (name);
488 : }
489 : else
490 927 : return get_identifier (sym->name);
491 : }
492 : else
493 : {
494 27103 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
495 27103 : return get_identifier (name);
496 : }
497 : }
498 :
499 :
500 : void
501 105158 : gfc_set_decl_assembler_name (tree decl, tree name)
502 : {
503 105158 : tree target_mangled = targetm.mangle_decl_assembler_name (decl, name);
504 105158 : SET_DECL_ASSEMBLER_NAME (decl, target_mangled);
505 105158 : }
506 :
507 :
508 : /* Returns true if a variable of specified size should go on the stack. */
509 :
510 : bool
511 172199 : gfc_can_put_var_on_stack (tree size)
512 : {
513 172199 : unsigned HOST_WIDE_INT low;
514 :
515 172199 : if (!INTEGER_CST_P (size))
516 : return 0;
517 :
518 164532 : if (flag_max_stack_var_size < 0)
519 : return 1;
520 :
521 136407 : if (!tree_fits_uhwi_p (size))
522 : return 0;
523 :
524 136407 : low = TREE_INT_CST_LOW (size);
525 136407 : if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size)
526 206 : return 0;
527 :
528 : /* TODO: Set a per-function stack size limit. */
529 :
530 : return 1;
531 : }
532 :
533 :
534 : /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to
535 : an expression involving its corresponding pointer. There are
536 : 2 cases; one for variable size arrays, and one for everything else,
537 : because variable-sized arrays require one fewer level of
538 : indirection. */
539 :
540 : static void
541 288 : gfc_finish_cray_pointee (tree decl, gfc_symbol *sym)
542 : {
543 288 : tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer);
544 288 : tree value;
545 :
546 : /* Parameters need to be dereferenced. */
547 288 : if (sym->cp_pointer->attr.dummy)
548 1 : ptr_decl = build_fold_indirect_ref_loc (input_location,
549 : ptr_decl);
550 :
551 : /* Check to see if we're dealing with a variable-sized array. */
552 288 : if (sym->attr.dimension
553 288 : && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE)
554 : {
555 : /* These decls will be dereferenced later, so we don't dereference
556 : them here. */
557 140 : value = convert (TREE_TYPE (decl), ptr_decl);
558 : }
559 : else
560 : {
561 148 : ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)),
562 : ptr_decl);
563 148 : value = build_fold_indirect_ref_loc (input_location,
564 : ptr_decl);
565 : }
566 :
567 288 : SET_DECL_VALUE_EXPR (decl, value);
568 288 : DECL_HAS_VALUE_EXPR_P (decl) = 1;
569 288 : GFC_DECL_CRAY_POINTEE (decl) = 1;
570 288 : }
571 :
572 :
573 : /* Finish processing of a declaration without an initial value. */
574 :
575 : static void
576 179179 : gfc_finish_decl (tree decl)
577 : {
578 179179 : gcc_assert (TREE_CODE (decl) == PARM_DECL
579 : || DECL_INITIAL (decl) == NULL_TREE);
580 :
581 179179 : if (!VAR_P (decl))
582 : return;
583 :
584 798 : if (DECL_SIZE (decl) == NULL_TREE
585 798 : && COMPLETE_TYPE_P (TREE_TYPE (decl)))
586 0 : layout_decl (decl, 0);
587 :
588 : /* A few consistency checks. */
589 : /* A static variable with an incomplete type is an error if it is
590 : initialized. Also if it is not file scope. Otherwise, let it
591 : through, but if it is not `extern' then it may cause an error
592 : message later. */
593 : /* An automatic variable with an incomplete type is an error. */
594 :
595 : /* We should know the storage size. */
596 798 : gcc_assert (DECL_SIZE (decl) != NULL_TREE
597 : || (TREE_STATIC (decl)
598 : ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl))
599 : : DECL_EXTERNAL (decl)));
600 :
601 : /* The storage size should be constant. */
602 798 : gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl))
603 : || !DECL_SIZE (decl)
604 : || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST);
605 : }
606 :
607 :
608 : /* Handle setting of GFC_DECL_SCALAR* on DECL. */
609 :
610 : void
611 424143 : gfc_finish_decl_attrs (tree decl, symbol_attribute *attr)
612 : {
613 424143 : if (!attr->dimension && !attr->codimension)
614 : {
615 : /* Handle scalar allocatable variables. */
616 334844 : if (attr->allocatable)
617 : {
618 6973 : gfc_allocate_lang_decl (decl);
619 6973 : GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1;
620 : }
621 : /* Handle scalar pointer variables. */
622 334844 : if (attr->pointer)
623 : {
624 40840 : gfc_allocate_lang_decl (decl);
625 40840 : GFC_DECL_SCALAR_POINTER (decl) = 1;
626 : }
627 334844 : if (attr->target)
628 : {
629 25000 : gfc_allocate_lang_decl (decl);
630 25000 : GFC_DECL_SCALAR_TARGET (decl) = 1;
631 : }
632 : }
633 424143 : }
634 :
635 :
636 : /* Apply symbol attributes to a variable, and add it to the function scope. */
637 :
638 : static void
639 189255 : gfc_finish_var_decl (tree decl, gfc_symbol * sym)
640 : {
641 189255 : tree new_type;
642 :
643 : /* Set DECL_VALUE_EXPR for Cray Pointees. */
644 189255 : if (sym->attr.cray_pointee)
645 288 : gfc_finish_cray_pointee (decl, sym);
646 :
647 : /* TREE_ADDRESSABLE means the address of this variable is actually needed.
648 : This is the equivalent of the TARGET variables.
649 : We also need to set this if the variable is passed by reference in a
650 : CALL statement. */
651 189255 : if (sym->attr.target)
652 27428 : TREE_ADDRESSABLE (decl) = 1;
653 :
654 : /* If it wasn't used we wouldn't be getting it. */
655 189255 : TREE_USED (decl) = 1;
656 :
657 189255 : if (sym->attr.flavor == FL_PARAMETER
658 1494 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
659 1483 : TREE_READONLY (decl) = 1;
660 :
661 : /* The front end already warned the user about this decl. Once should be
662 : enough. */
663 189255 : if (sym->attr.warning_emitted)
664 26 : suppress_warning (decl);
665 :
666 : /* Chain this decl to the pending declarations. Don't do pushdecl()
667 : because this would add them to the current scope rather than the
668 : function scope. */
669 189255 : if (current_function_decl != NULL_TREE)
670 : {
671 170202 : if (sym->ns->proc_name
672 170196 : && (sym->ns->proc_name->backend_decl == current_function_decl
673 18678 : || sym->result == sym))
674 151518 : gfc_add_decl_to_function (decl);
675 18684 : else if (sym->ns->omp_affinity_iterators)
676 : {
677 : /* Iterator variables are block-local; other variables in the
678 : iterator namespace (e.g. implicitly typed host-associated
679 : ones used in locator expressions) belong in the enclosing
680 : function. */
681 : gfc_symbol *iter;
682 128 : for (iter = sym->ns->omp_affinity_iterators; iter;
683 18 : iter = iter->tlink)
684 127 : if (iter == sym)
685 : break;
686 110 : if (iter)
687 109 : add_decl_as_local (decl);
688 : else
689 1 : gfc_add_decl_to_function (decl);
690 : }
691 18574 : else if (sym->ns->proc_name
692 18568 : && sym->ns->proc_name->attr.flavor == FL_LABEL)
693 : /* This is a BLOCK construct. */
694 13405 : add_decl_as_local (decl);
695 : else
696 5169 : gfc_add_decl_to_parent_function (decl);
697 : }
698 :
699 189255 : if (sym->attr.cray_pointee)
700 : return;
701 :
702 188967 : if(sym->attr.is_bind_c == 1 && sym->binding_label)
703 : {
704 : /* We need to put variables that are bind(c) into the common
705 : segment of the object file, because this is what C would do.
706 : gfortran would typically put them in either the BSS or
707 : initialized data segments, and only mark them as common if
708 : they were part of common blocks. However, if they are not put
709 : into common space, then C cannot initialize global Fortran
710 : variables that it interoperates with and the draft says that
711 : either Fortran or C should be able to initialize it (but not
712 : both, of course.) (J3/04-007, section 15.3). A binding label has
713 : external linkage, so PRIVATE hides only the Fortran name and must
714 : not restrict the symbol's visibility. */
715 126 : TREE_PUBLIC(decl) = 1;
716 126 : DECL_COMMON(decl) = 1;
717 : }
718 :
719 : /* If a variable is USE associated, it's always external. */
720 188967 : if (sym->attr.use_assoc || sym->attr.used_in_submodule)
721 : {
722 137 : DECL_EXTERNAL (decl) = 1;
723 137 : TREE_PUBLIC (decl) = 1;
724 : }
725 188830 : else if (sym->fn_result_spec && !sym->ns->proc_name->module)
726 : {
727 :
728 1 : if (sym->ns->proc_name->attr.if_source != IFSRC_DECL)
729 0 : DECL_EXTERNAL (decl) = 1;
730 : else
731 1 : TREE_STATIC (decl) = 1;
732 :
733 1 : TREE_PUBLIC (decl) = 1;
734 : }
735 188829 : else if (sym->module && !sym->attr.result && !sym->attr.dummy)
736 : {
737 : /* TODO: Don't set sym->module for result or dummy variables. */
738 19044 : gcc_assert (current_function_decl == NULL_TREE || sym->result == sym);
739 :
740 19044 : TREE_PUBLIC (decl) = 1;
741 19044 : TREE_STATIC (decl) = 1;
742 19044 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used
743 348 : && !sym->binding_label)
744 : {
745 345 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
746 345 : DECL_VISIBILITY_SPECIFIED (decl) = true;
747 : }
748 : }
749 :
750 : /* Derived types are a bit peculiar because of the possibility of
751 : a default initializer; this must be applied each time the variable
752 : comes into scope it therefore need not be static. These variables
753 : are SAVE_NONE but have an initializer. Otherwise explicitly
754 : initialized variables are SAVE_IMPLICIT and explicitly saved are
755 : SAVE_EXPLICIT. */
756 188967 : if (!sym->attr.use_assoc
757 188833 : && (sym->attr.save != SAVE_NONE || sym->attr.data
758 153096 : || (sym->value && sym->ns->proc_name->attr.is_main_program)
759 148627 : || (flag_coarray == GFC_FCOARRAY_LIB
760 2393 : && sym->attr.codimension && !sym->attr.allocatable)))
761 40382 : TREE_STATIC (decl) = 1;
762 :
763 : /* Treat asynchronous variables the same as volatile, for now. */
764 188967 : if (sym->attr.volatile_ || sym->attr.asynchronous)
765 : {
766 782 : TREE_THIS_VOLATILE (decl) = 1;
767 782 : TREE_SIDE_EFFECTS (decl) = 1;
768 782 : new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE);
769 782 : TREE_TYPE (decl) = new_type;
770 : }
771 :
772 : /* Keep variables larger than max-stack-var-size off stack. */
773 188961 : if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive)
774 164240 : && !sym->attr.automatic
775 161171 : && !sym->attr.associate_var
776 152638 : && sym->attr.save != SAVE_EXPLICIT
777 148866 : && sym->attr.save != SAVE_IMPLICIT
778 118939 : && INTEGER_CST_P (DECL_SIZE_UNIT (decl))
779 118536 : && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
780 : /* Put variable length auto array pointers always into stack. */
781 141 : && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE
782 2 : || sym->attr.dimension == 0
783 2 : || sym->as->type != AS_EXPLICIT
784 2 : || sym->attr.pointer
785 2 : || sym->attr.allocatable)
786 189106 : && !DECL_ARTIFICIAL (decl))
787 : {
788 138 : if (flag_max_stack_var_size > 0
789 131 : && !(sym->ns->proc_name
790 131 : && sym->ns->proc_name->attr.is_main_program))
791 32 : gfc_warning (OPT_Wsurprising,
792 : "Array %qs at %L is larger than limit set by "
793 : "%<-fmax-stack-var-size=%>, moved from stack to static "
794 : "storage. This makes the procedure unsafe when called "
795 : "recursively, or concurrently from multiple threads. "
796 : "Consider increasing the %<-fmax-stack-var-size=%> "
797 : "limit (or use %<-frecursive%>, which implies "
798 : "unlimited %<-fmax-stack-var-size%>) - or change the "
799 : "code to use an ALLOCATABLE array. If the variable is "
800 : "never accessed concurrently, this warning can be "
801 : "ignored, and the variable could also be declared with "
802 : "the SAVE attribute.",
803 : sym->name, &sym->declared_at);
804 :
805 138 : TREE_STATIC (decl) = 1;
806 :
807 : /* Because the size of this variable isn't known until now, we may have
808 : greedily added an initializer to this variable (in build_init_assign)
809 : even though the max-stack-var-size indicates the variable should be
810 : static. Therefore we rip out the automatic initializer here and
811 : replace it with a static one. */
812 138 : gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name);
813 138 : gfc_code *prev = NULL;
814 138 : gfc_code *code = sym->ns->code;
815 138 : while (code && code->op == EXEC_INIT_ASSIGN)
816 : {
817 : /* Look for an initializer meant for this symbol. */
818 8 : if (code->expr1->symtree == st)
819 : {
820 8 : if (prev)
821 0 : prev->next = code->next;
822 : else
823 8 : sym->ns->code = code->next;
824 :
825 : break;
826 : }
827 :
828 0 : prev = code;
829 0 : code = code->next;
830 : }
831 138 : if (code && code->op == EXEC_INIT_ASSIGN)
832 : {
833 : /* Keep the init expression for a static initializer. */
834 8 : sym->value = code->expr2;
835 : /* Cleanup the defunct code object, without freeing the init expr. */
836 8 : code->expr2 = NULL;
837 8 : gfc_free_statement (code);
838 8 : free (code);
839 : }
840 : }
841 :
842 188967 : if (sym->attr.omp_allocate && TREE_STATIC (decl))
843 : {
844 9 : struct gfc_omp_namelist *n;
845 35 : for (n = sym->ns->omp_allocate; n; n = n->next)
846 35 : if (n->sym == sym)
847 : break;
848 9 : tree alloc = gfc_conv_constant_to_tree (n->u2.allocator);
849 9 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align)
850 : : NULL_TREE);
851 9 : DECL_ATTRIBUTES (decl)
852 18 : = tree_cons (get_identifier ("omp allocate"),
853 9 : build_tree_list (alloc, align), DECL_ATTRIBUTES (decl));
854 : }
855 :
856 : /* Mark weak variables. */
857 188967 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
858 1 : declare_weak (decl);
859 :
860 : /* Handle threadprivate variables. */
861 188967 : if (sym->attr.threadprivate
862 188967 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
863 151 : set_decl_tls_model (decl, decl_default_tls_model (decl));
864 :
865 188967 : gfc_finish_decl_attrs (decl, &sym->attr);
866 : }
867 :
868 :
869 : /* Allocate the lang-specific part of a decl. */
870 :
871 : void
872 108602 : gfc_allocate_lang_decl (tree decl)
873 : {
874 108602 : if (DECL_LANG_SPECIFIC (decl) == NULL)
875 103171 : DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> ();
876 108602 : }
877 :
878 :
879 : /* Determine order of two symbol declarations. */
880 :
881 : static bool
882 5742 : decl_order (gfc_symbol *sym1, gfc_symbol *sym2)
883 : {
884 5742 : if (sym1->decl_order > sym2->decl_order)
885 : return true;
886 : else
887 0 : return false;
888 : }
889 :
890 :
891 : /* Remember a symbol to generate initialization/cleanup code at function
892 : entry/exit. */
893 :
894 : static void
895 86065 : gfc_defer_symbol_init (gfc_symbol * sym)
896 : {
897 86065 : gfc_symbol *p;
898 86065 : gfc_symbol *last;
899 86065 : gfc_symbol *head;
900 :
901 : /* Don't add a symbol twice. */
902 86065 : if (sym->tlink)
903 : return;
904 :
905 79852 : last = head = sym->ns->proc_name;
906 79852 : p = last->tlink;
907 :
908 79852 : gfc_function_dependency (sym, head);
909 :
910 : /* Make sure that setup code for dummy variables which are used in the
911 : setup of other variables is generated first. */
912 79852 : if (sym->attr.dummy)
913 : {
914 : /* Find the first dummy arg seen after us, or the first non-dummy arg.
915 : This is a circular list, so don't go past the head. */
916 : while (p != head
917 17407 : && (!p->attr.dummy || decl_order (p, sym)))
918 : {
919 3391 : last = p;
920 3391 : p = p->tlink;
921 : }
922 : }
923 65836 : else if (sym->fn_result_dep)
924 : {
925 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
926 : function result (ie. proc_name = proc_name->result), make sure that the
927 : order in the tlink chain is such that the code appears in declaration
928 : order. This ensures that mutual dependencies between these symbols are
929 : respected. */
930 : while (p != head
931 228 : && (!p->attr.result || decl_order (sym, p)))
932 : {
933 162 : last = p;
934 162 : p = p->tlink;
935 : }
936 : }
937 : /* Insert in between last and p. */
938 79852 : last->tlink = sym;
939 79852 : sym->tlink = p;
940 : }
941 :
942 :
943 : /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the
944 : backend_decl for a module symbol, if it all ready exists. If the
945 : module gsymbol does not exist, it is created. If the symbol does
946 : not exist, it is added to the gsymbol namespace. Returns true if
947 : an existing backend_decl is found. */
948 :
949 : bool
950 14843 : gfc_get_module_backend_decl (gfc_symbol *sym)
951 : {
952 14843 : gfc_gsymbol *gsym;
953 14843 : gfc_symbol *s;
954 14843 : gfc_symtree *st;
955 :
956 14843 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
957 :
958 14843 : if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE))
959 : {
960 14843 : st = NULL;
961 14843 : s = NULL;
962 :
963 : /* Check for a symbol with the same name. */
964 390 : if (gsym)
965 14453 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
966 :
967 14843 : if (!s)
968 : {
969 618 : if (!gsym)
970 : {
971 390 : gsym = gfc_get_gsymbol (sym->module, false);
972 390 : gsym->type = GSYM_MODULE;
973 390 : gsym->ns = gfc_get_namespace (NULL, 0);
974 : }
975 :
976 618 : st = gfc_new_symtree (&gsym->ns->sym_root, sym->name);
977 618 : st->n.sym = sym;
978 618 : sym->refs++;
979 : }
980 14225 : else if (gfc_fl_struct (sym->attr.flavor))
981 : {
982 11352 : if (s && s->attr.flavor == FL_PROCEDURE)
983 : {
984 6114 : gfc_interface *intr;
985 6114 : gcc_assert (s->attr.generic);
986 6259 : for (intr = s->generic; intr; intr = intr->next)
987 6259 : if (gfc_fl_struct (intr->sym->attr.flavor))
988 : {
989 6114 : s = intr->sym;
990 6114 : break;
991 : }
992 : }
993 :
994 : /* Normally we can assume that s is a derived-type symbol since it
995 : shares a name with the derived-type sym. However if sym is a
996 : STRUCTURE, it may in fact share a name with any other basic type
997 : variable. If s is in fact of derived type then we can continue
998 : looking for a duplicate type declaration. */
999 11352 : if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED)
1000 : {
1001 0 : s = s->ts.u.derived;
1002 : }
1003 :
1004 11352 : if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl)
1005 : {
1006 25 : if (s->attr.flavor == FL_UNION)
1007 0 : s->backend_decl = gfc_get_union_type (s);
1008 : else
1009 25 : s->backend_decl = gfc_get_derived_type (s);
1010 : }
1011 11352 : gfc_copy_dt_decls_ifequal (s, sym, true);
1012 11352 : return true;
1013 : }
1014 2873 : else if (s->backend_decl)
1015 : {
1016 2861 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1017 550 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
1018 : true);
1019 2311 : else if (sym->ts.type == BT_CHARACTER)
1020 312 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
1021 2861 : sym->backend_decl = s->backend_decl;
1022 2861 : return true;
1023 : }
1024 : }
1025 : return false;
1026 : }
1027 :
1028 :
1029 : /* Create an array index type variable with function scope. */
1030 :
1031 : static tree
1032 48140 : create_index_var (const char * pfx, int nest)
1033 : {
1034 48140 : tree decl;
1035 :
1036 48140 : decl = gfc_create_var_np (gfc_array_index_type, pfx);
1037 48140 : if (nest)
1038 28 : gfc_add_decl_to_parent_function (decl);
1039 : else
1040 48112 : gfc_add_decl_to_function (decl);
1041 48140 : return decl;
1042 : }
1043 :
1044 :
1045 : /* Create variables to hold all the non-constant bits of info for a
1046 : descriptorless array. Remember these in the lang-specific part of the
1047 : type. */
1048 :
1049 : static void
1050 64625 : gfc_build_qualified_array (tree decl, gfc_symbol * sym)
1051 : {
1052 64625 : tree type;
1053 64625 : int dim;
1054 64625 : int nest;
1055 64625 : gfc_namespace* procns;
1056 64625 : symbol_attribute *array_attr;
1057 64625 : gfc_array_spec *as;
1058 64625 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1059 :
1060 64625 : type = TREE_TYPE (decl);
1061 64625 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1062 64625 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1063 :
1064 : /* We just use the descriptor, if there is one. */
1065 64625 : if (GFC_DESCRIPTOR_TYPE_P (type))
1066 : return;
1067 :
1068 48668 : gcc_assert (GFC_ARRAY_TYPE_P (type));
1069 48668 : procns = gfc_find_proc_namespace (sym->ns);
1070 97336 : nest = (procns->proc_name->backend_decl != current_function_decl)
1071 48668 : && !sym->attr.contained;
1072 :
1073 860 : if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB
1074 544 : && as->type != AS_ASSUMED_SHAPE
1075 49189 : && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE)
1076 : {
1077 521 : tree token;
1078 521 : tree token_type = build_qualified_type (pvoid_type_node,
1079 : TYPE_QUAL_RESTRICT);
1080 :
1081 521 : if (sym->module && (sym->attr.use_assoc
1082 28 : || sym->ns->proc_name->attr.flavor == FL_MODULE))
1083 : {
1084 33 : tree token_name
1085 33 : = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"),
1086 : IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym))));
1087 33 : token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name,
1088 : token_type);
1089 33 : if (sym->attr.use_assoc
1090 28 : || (sym->attr.host_assoc && sym->attr.used_in_submodule))
1091 7 : DECL_EXTERNAL (token) = 1;
1092 : else
1093 26 : TREE_STATIC (token) = 1;
1094 :
1095 33 : TREE_PUBLIC (token) = 1;
1096 :
1097 33 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
1098 : {
1099 0 : DECL_VISIBILITY (token) = VISIBILITY_HIDDEN;
1100 0 : DECL_VISIBILITY_SPECIFIED (token) = true;
1101 : }
1102 : }
1103 : else
1104 : {
1105 488 : token = gfc_create_var_np (token_type, "caf_token");
1106 488 : TREE_STATIC (token) = 1;
1107 : }
1108 :
1109 521 : GFC_TYPE_ARRAY_CAF_TOKEN (type) = token;
1110 521 : DECL_ARTIFICIAL (token) = 1;
1111 521 : DECL_NONALIASED (token) = 1;
1112 :
1113 521 : if (sym->module && !sym->attr.use_assoc)
1114 : {
1115 28 : module_htab_entry *mod
1116 28 : = cur_module ? cur_module : gfc_find_module (sym->module);
1117 28 : pushdecl (token);
1118 28 : DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl;
1119 28 : gfc_module_add_decl (mod, token);
1120 28 : }
1121 493 : else if (sym->attr.host_assoc
1122 493 : && TREE_CODE (DECL_CONTEXT (current_function_decl))
1123 : != TRANSLATION_UNIT_DECL)
1124 3 : gfc_add_decl_to_parent_function (token);
1125 : else
1126 490 : gfc_add_decl_to_function (token);
1127 : }
1128 :
1129 115624 : for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++)
1130 : {
1131 66956 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1132 : {
1133 521 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1134 521 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1135 : }
1136 : /* Don't try to use the unknown bound for assumed shape arrays. */
1137 66956 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1138 66956 : && (as->type != AS_ASSUMED_SIZE
1139 2129 : || dim < GFC_TYPE_ARRAY_RANK (type) - 1))
1140 : {
1141 19571 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1142 19571 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1143 : }
1144 :
1145 66956 : if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE)
1146 : {
1147 11694 : GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest);
1148 11694 : suppress_warning (GFC_TYPE_ARRAY_STRIDE (type, dim));
1149 : }
1150 : }
1151 49802 : for (dim = GFC_TYPE_ARRAY_RANK (type);
1152 49802 : dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++)
1153 : {
1154 1134 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1155 : {
1156 114 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1157 114 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1158 : }
1159 : /* Don't try to use the unknown ubound for the last coarray dimension. */
1160 1134 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1161 1134 : && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1)
1162 : {
1163 60 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1164 60 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1165 : }
1166 : }
1167 48668 : if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE)
1168 : {
1169 9047 : GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type,
1170 : "offset");
1171 9047 : suppress_warning (GFC_TYPE_ARRAY_OFFSET (type));
1172 :
1173 9047 : if (nest)
1174 8 : gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type));
1175 : else
1176 9039 : gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type));
1177 : }
1178 :
1179 66621 : if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE && as->rank != 0
1180 66580 : && as->type != AS_ASSUMED_SIZE)
1181 : {
1182 16180 : GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest);
1183 16180 : suppress_warning (GFC_TYPE_ARRAY_SIZE (type));
1184 : }
1185 :
1186 48668 : if (POINTER_TYPE_P (type))
1187 : {
1188 21570 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type)));
1189 21570 : gcc_assert (TYPE_LANG_SPECIFIC (type)
1190 : == TYPE_LANG_SPECIFIC (TREE_TYPE (type)));
1191 21570 : type = TREE_TYPE (type);
1192 : }
1193 :
1194 48668 : if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type))
1195 : {
1196 16180 : tree size, range;
1197 :
1198 48540 : size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
1199 16180 : GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node);
1200 16180 : range = build_range_type (gfc_array_index_type, gfc_index_zero_node,
1201 : size);
1202 16180 : TYPE_DOMAIN (type) = range;
1203 16180 : layout_type (type);
1204 : }
1205 :
1206 88236 : if (TYPE_NAME (type) != NULL_TREE && as->rank > 0
1207 39105 : && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE
1208 86429 : && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1)))
1209 : {
1210 7521 : tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type));
1211 :
1212 7909 : for (dim = 0; dim < as->rank - 1; dim++)
1213 : {
1214 388 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1215 388 : gtype = TREE_TYPE (gtype);
1216 : }
1217 7521 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1218 7521 : if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL)
1219 7521 : TYPE_NAME (type) = NULL_TREE;
1220 : }
1221 :
1222 48668 : if (TYPE_NAME (type) == NULL_TREE)
1223 : {
1224 16621 : tree gtype = TREE_TYPE (type), rtype, type_decl;
1225 :
1226 38138 : for (dim = as->rank - 1; dim >= 0; dim--)
1227 : {
1228 21517 : tree lbound, ubound;
1229 21517 : lbound = GFC_TYPE_ARRAY_LBOUND (type, dim);
1230 21517 : ubound = GFC_TYPE_ARRAY_UBOUND (type, dim);
1231 21517 : rtype = build_range_type (gfc_array_index_type, lbound, ubound);
1232 21517 : gtype = build_array_type (gtype, rtype);
1233 : /* Ensure the bound variables aren't optimized out at -O0.
1234 : For -O1 and above they often will be optimized out, but
1235 : can be tracked by VTA. Also set DECL_NAMELESS, so that
1236 : the artificial lbound.N or ubound.N DECL_NAME doesn't
1237 : end up in debug info. */
1238 21517 : if (lbound
1239 21517 : && VAR_P (lbound)
1240 521 : && DECL_ARTIFICIAL (lbound)
1241 22038 : && DECL_IGNORED_P (lbound))
1242 : {
1243 521 : if (DECL_NAME (lbound)
1244 521 : && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)),
1245 : "lbound") != 0)
1246 521 : DECL_NAMELESS (lbound) = 1;
1247 521 : DECL_IGNORED_P (lbound) = 0;
1248 : }
1249 21517 : if (ubound
1250 21129 : && VAR_P (ubound)
1251 19571 : && DECL_ARTIFICIAL (ubound)
1252 41088 : && DECL_IGNORED_P (ubound))
1253 : {
1254 19571 : if (DECL_NAME (ubound)
1255 19571 : && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)),
1256 : "ubound") != 0)
1257 19571 : DECL_NAMELESS (ubound) = 1;
1258 19571 : DECL_IGNORED_P (ubound) = 0;
1259 : }
1260 : }
1261 16621 : TYPE_NAME (type) = type_decl = build_decl (input_location,
1262 : TYPE_DECL, NULL, gtype);
1263 16621 : DECL_ORIGINAL_TYPE (type_decl) = gtype;
1264 : }
1265 : }
1266 :
1267 :
1268 : /* For some dummy arguments we don't use the actual argument directly.
1269 : Instead we create a local decl and use that. This allows us to perform
1270 : initialization, and construct full type information. */
1271 :
1272 : static tree
1273 25899 : gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy)
1274 : {
1275 25899 : tree decl;
1276 25899 : tree type;
1277 25899 : gfc_array_spec *as;
1278 25899 : symbol_attribute *array_attr;
1279 25899 : char *name;
1280 25899 : gfc_packed packed;
1281 25899 : int n;
1282 25899 : bool known_size;
1283 25899 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1284 :
1285 : /* Use the array as and attr. */
1286 25899 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1287 25899 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1288 :
1289 : /* The dummy is returned for pointer, allocatable or assumed rank arrays.
1290 : For class arrays the information if sym is an allocatable or pointer
1291 : object needs to be checked explicitly (IS_CLASS_ARRAY can be false for
1292 : too many reasons to be of use here). */
1293 25899 : if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
1294 24017 : || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer)
1295 24017 : || array_attr->allocatable
1296 18820 : || (as && as->type == AS_ASSUMED_RANK))
1297 : return dummy;
1298 :
1299 : /* Add to list of variables if not a fake result variable.
1300 : These symbols are set on the symbol only, not on the class component. */
1301 14720 : if (sym->attr.result || sym->attr.dummy)
1302 14116 : gfc_defer_symbol_init (sym);
1303 :
1304 : /* For a class array the array descriptor is in the _data component, while
1305 : for a regular array the TREE_TYPE of the dummy is a pointer to the
1306 : descriptor. */
1307 14720 : type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy)
1308 : : TREE_TYPE (dummy));
1309 : /* type now is the array descriptor w/o any indirection. */
1310 14720 : gcc_assert (TREE_CODE (dummy) == PARM_DECL
1311 : && POINTER_TYPE_P (TREE_TYPE (dummy)));
1312 :
1313 : /* Do we know the element size? */
1314 14720 : known_size = sym->ts.type != BT_CHARACTER
1315 14720 : || INTEGER_CST_P (sym->ts.u.cl->backend_decl);
1316 :
1317 13810 : if (known_size && !GFC_DESCRIPTOR_TYPE_P (type))
1318 : {
1319 : /* For descriptorless arrays with known element size the actual
1320 : argument is sufficient. */
1321 6848 : gfc_build_qualified_array (dummy, sym);
1322 6848 : return dummy;
1323 : }
1324 :
1325 7872 : if (GFC_DESCRIPTOR_TYPE_P (type))
1326 : {
1327 : /* Create a descriptorless array pointer. */
1328 7497 : packed = PACKED_NO;
1329 :
1330 : /* Even when -frepack-arrays is used, symbols with TARGET attribute
1331 : are not repacked. */
1332 7497 : if (!flag_repack_arrays || sym->attr.target)
1333 : {
1334 7495 : if (as->type == AS_ASSUMED_SIZE)
1335 79 : packed = PACKED_FULL;
1336 : }
1337 : else
1338 : {
1339 2 : if (as->type == AS_EXPLICIT)
1340 : {
1341 3 : packed = PACKED_FULL;
1342 3 : for (n = 0; n < as->rank; n++)
1343 : {
1344 2 : if (!(as->upper[n]
1345 2 : && as->lower[n]
1346 2 : && as->upper[n]->expr_type == EXPR_CONSTANT
1347 2 : && as->lower[n]->expr_type == EXPR_CONSTANT))
1348 : {
1349 : packed = PACKED_PARTIAL;
1350 : break;
1351 : }
1352 : }
1353 : }
1354 : else
1355 : packed = PACKED_PARTIAL;
1356 : }
1357 :
1358 : /* For classarrays the element type is required, but
1359 : gfc_typenode_for_spec () returns the array descriptor. */
1360 7497 : type = is_classarray ? gfc_get_element_type (type)
1361 6539 : : gfc_typenode_for_spec (&sym->ts);
1362 7497 : type = gfc_get_nodesc_array_type (type, as, packed,
1363 7497 : !sym->attr.target);
1364 : }
1365 : else
1366 : {
1367 : /* We now have an expression for the element size, so create a fully
1368 : qualified type. Reset sym->backend decl or this will just return the
1369 : old type. */
1370 375 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1371 375 : sym->backend_decl = NULL_TREE;
1372 375 : type = gfc_sym_type (sym);
1373 375 : packed = PACKED_FULL;
1374 : }
1375 :
1376 7872 : ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0);
1377 7872 : decl = build_decl (input_location,
1378 : VAR_DECL, get_identifier (name), type);
1379 :
1380 7872 : DECL_ARTIFICIAL (decl) = 1;
1381 7872 : DECL_NAMELESS (decl) = 1;
1382 7872 : TREE_PUBLIC (decl) = 0;
1383 7872 : TREE_STATIC (decl) = 0;
1384 7872 : DECL_EXTERNAL (decl) = 0;
1385 :
1386 : /* Avoid uninitialized warnings for optional dummy arguments. */
1387 7872 : if ((sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.optional)
1388 7872 : || sym->attr.optional)
1389 858 : suppress_warning (decl);
1390 :
1391 : /* We should never get deferred shape arrays here. We used to because of
1392 : frontend bugs. */
1393 7872 : gcc_assert (as->type != AS_DEFERRED);
1394 :
1395 7872 : if (packed == PACKED_PARTIAL)
1396 1 : GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1;
1397 7871 : else if (packed == PACKED_FULL)
1398 454 : GFC_DECL_PACKED_ARRAY (decl) = 1;
1399 :
1400 7872 : gfc_build_qualified_array (decl, sym);
1401 :
1402 7872 : if (DECL_LANG_SPECIFIC (dummy))
1403 1036 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy);
1404 : else
1405 6836 : gfc_allocate_lang_decl (decl);
1406 :
1407 7872 : GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy;
1408 :
1409 : /* The elements of the actual argument can be spaced by more than the
1410 : element size, in which case they are addressed by the span of the
1411 : descriptor. Create the variable holding it here, since the body is
1412 : translated before gfc_trans_dummy_array_bias loads it. */
1413 7872 : if (packed == PACKED_NO)
1414 : {
1415 7417 : if (gfc_span_folds_into_stride (sym))
1416 445 : GFC_DECL_SPAN_NORMALIZED (decl) = 1;
1417 6972 : else if (gfc_is_span_addressed_dummy (sym))
1418 : {
1419 144 : GFC_DECL_PTR_ARRAY_P (decl) = 1;
1420 144 : GFC_DECL_SPAN (decl) = gfc_create_var (gfc_array_index_type, "span");
1421 : }
1422 : }
1423 :
1424 7872 : if (sym->ns->proc_name->backend_decl == current_function_decl
1425 518 : || sym->attr.contained)
1426 7864 : gfc_add_decl_to_function (decl);
1427 : else
1428 8 : gfc_add_decl_to_parent_function (decl);
1429 :
1430 : return decl;
1431 : }
1432 :
1433 : /* Return a constant or a variable to use as a string length. Does not
1434 : add the decl to the current scope. */
1435 :
1436 : static tree
1437 16162 : gfc_create_string_length (gfc_symbol * sym)
1438 : {
1439 16162 : gcc_assert (sym->ts.u.cl);
1440 16162 : gfc_conv_const_charlen (sym->ts.u.cl);
1441 :
1442 16162 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1443 : {
1444 3581 : tree length;
1445 3581 : const char *name;
1446 :
1447 : /* The string length variable shall be in static memory if it is either
1448 : explicitly SAVED, a module variable or with -fno-automatic. Only
1449 : relevant is "len=:" - otherwise, it is either a constant length or
1450 : it is an automatic variable. */
1451 7162 : bool static_length = sym->attr.save
1452 3404 : || sym->ns->proc_name->attr.flavor == FL_MODULE
1453 6985 : || (flag_max_stack_var_size == 0
1454 2 : && sym->ts.deferred && !sym->attr.dummy
1455 0 : && !sym->attr.result && !sym->attr.function);
1456 :
1457 : /* Also prefix the mangled name. We need to call GFC_PREFIX for static
1458 : variables as some systems do not support the "." in the assembler name.
1459 : For nonstatic variables, the "." does not appear in assembler. */
1460 3404 : if (static_length)
1461 : {
1462 177 : if (sym->module)
1463 54 : name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module,
1464 : sym->name);
1465 : else
1466 123 : name = gfc_get_string (GFC_PREFIX ("%s"), sym->name);
1467 : }
1468 3404 : else if (sym->module)
1469 0 : name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name);
1470 : else
1471 3404 : name = gfc_get_string (".%s", sym->name);
1472 :
1473 3581 : length = build_decl (input_location,
1474 : VAR_DECL, get_identifier (name),
1475 : gfc_charlen_type_node);
1476 3581 : DECL_ARTIFICIAL (length) = 1;
1477 3581 : TREE_USED (length) = 1;
1478 3581 : if (sym->ns->proc_name->tlink != NULL)
1479 3306 : gfc_defer_symbol_init (sym);
1480 :
1481 3581 : sym->ts.u.cl->backend_decl = length;
1482 :
1483 3581 : if (static_length)
1484 177 : TREE_STATIC (length) = 1;
1485 :
1486 3581 : if (sym->ns->proc_name->attr.flavor == FL_MODULE
1487 54 : && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used))
1488 54 : TREE_PUBLIC (length) = 1;
1489 : }
1490 :
1491 16162 : gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE);
1492 16162 : return sym->ts.u.cl->backend_decl;
1493 : }
1494 :
1495 : /* If a variable is assigned a label, we add another two auxiliary
1496 : variables. */
1497 :
1498 : static void
1499 66 : gfc_add_assign_aux_vars (gfc_symbol * sym)
1500 : {
1501 66 : tree addr;
1502 66 : tree length;
1503 66 : tree decl;
1504 :
1505 66 : gcc_assert (sym->backend_decl);
1506 :
1507 66 : decl = sym->backend_decl;
1508 66 : gfc_allocate_lang_decl (decl);
1509 66 : GFC_DECL_ASSIGN (decl) = 1;
1510 66 : length = build_decl (input_location,
1511 : VAR_DECL, create_tmp_var_name (sym->name),
1512 : gfc_charlen_type_node);
1513 66 : addr = build_decl (input_location,
1514 : VAR_DECL, create_tmp_var_name (sym->name),
1515 : pvoid_type_node);
1516 66 : gfc_finish_var_decl (length, sym);
1517 66 : gfc_finish_var_decl (addr, sym);
1518 : /* STRING_LENGTH is also used as flag. Less than -1 means that
1519 : ASSIGN_ADDR cannot be used. Equal -1 means that ASSIGN_ADDR is the
1520 : target label's address. Otherwise, value is the length of a format string
1521 : and ASSIGN_ADDR is its address. */
1522 66 : if (TREE_STATIC (length))
1523 1 : DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2);
1524 : else
1525 65 : gfc_defer_symbol_init (sym);
1526 :
1527 66 : GFC_DECL_STRING_LEN (decl) = length;
1528 66 : GFC_DECL_ASSIGN_ADDR (decl) = addr;
1529 66 : }
1530 :
1531 :
1532 : static void
1533 295092 : add_attributes_to_decl (tree *decl_p, const gfc_symbol *sym)
1534 : {
1535 295092 : unsigned id;
1536 295092 : tree list = NULL_TREE;
1537 295092 : symbol_attribute sym_attr = sym->attr;
1538 :
1539 3836196 : for (id = 0; id < EXT_ATTR_NUM; id++)
1540 3541104 : if (sym_attr.ext_attr & (1 << id) && ext_attr_list[id].middle_end_name)
1541 : {
1542 0 : tree ident = get_identifier (ext_attr_list[id].middle_end_name);
1543 0 : list = tree_cons (ident, NULL_TREE, list);
1544 : }
1545 :
1546 295092 : tree clauses = NULL_TREE;
1547 :
1548 295092 : if (sym_attr.oacc_routine_lop != OACC_ROUTINE_LOP_NONE)
1549 : {
1550 355 : omp_clause_code code;
1551 355 : switch (sym_attr.oacc_routine_lop)
1552 : {
1553 : case OACC_ROUTINE_LOP_GANG:
1554 : code = OMP_CLAUSE_GANG;
1555 : break;
1556 : case OACC_ROUTINE_LOP_WORKER:
1557 : code = OMP_CLAUSE_WORKER;
1558 : break;
1559 : case OACC_ROUTINE_LOP_VECTOR:
1560 : code = OMP_CLAUSE_VECTOR;
1561 : break;
1562 : case OACC_ROUTINE_LOP_SEQ:
1563 : code = OMP_CLAUSE_SEQ;
1564 : break;
1565 0 : case OACC_ROUTINE_LOP_NONE:
1566 0 : case OACC_ROUTINE_LOP_ERROR:
1567 0 : default:
1568 0 : gcc_unreachable ();
1569 : }
1570 355 : tree c = build_omp_clause (UNKNOWN_LOCATION, code);
1571 355 : OMP_CLAUSE_CHAIN (c) = clauses;
1572 355 : clauses = c;
1573 :
1574 355 : tree dims = oacc_build_routine_dims (clauses);
1575 355 : list = oacc_replace_fn_attrib_attr (list, dims);
1576 : }
1577 :
1578 295092 : if (sym_attr.oacc_routine_nohost)
1579 : {
1580 40 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_NOHOST);
1581 40 : OMP_CLAUSE_CHAIN (c) = clauses;
1582 40 : clauses = c;
1583 : }
1584 :
1585 : /* FIXME: 'declare_target_link' permits both any and host, but
1586 : will fail if one sets OMP_CLAUSE_DEVICE_TYPE_KIND. */
1587 295092 : if (sym_attr.omp_device_type != OMP_DEVICE_TYPE_UNSET
1588 416 : && !sym_attr.omp_declare_target_link
1589 408 : && !sym_attr.omp_declare_target_indirect /* implies 'any' */)
1590 : {
1591 362 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_DEVICE_TYPE);
1592 362 : switch (sym_attr.omp_device_type)
1593 : {
1594 5 : case OMP_DEVICE_TYPE_HOST:
1595 5 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_HOST;
1596 5 : break;
1597 4 : case OMP_DEVICE_TYPE_NOHOST:
1598 4 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_NOHOST;
1599 4 : break;
1600 353 : case OMP_DEVICE_TYPE_ANY:
1601 353 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_ANY;
1602 353 : break;
1603 0 : default:
1604 0 : gcc_unreachable ();
1605 : }
1606 362 : OMP_CLAUSE_CHAIN (c) = clauses;
1607 362 : clauses = c;
1608 : }
1609 :
1610 : /* Also check trans-common.cc when updating/removing the following;
1611 : also update f95.c's gfc_gnu_attributes. */
1612 295092 : if (sym_attr.omp_groupprivate)
1613 6 : gfc_error ("Sorry, OMP GROUPPRIVATE not implemented, "
1614 6 : "used by %qs declared at %L", sym->name, &sym->declared_at);
1615 295086 : else if (sym_attr.omp_declare_target_local)
1616 : /* Use 'else if' as groupprivate implies 'local'. */
1617 0 : gfc_error ("Sorry, OMP DECLARE TARGET with LOCAL clause not implemented, "
1618 0 : "used by %qs declared at %L", sym->name, &sym->declared_at);
1619 :
1620 295092 : bool has_declare = true;
1621 295092 : if (sym_attr.omp_declare_target_link
1622 295084 : || sym_attr.oacc_declare_link)
1623 9 : list = tree_cons (get_identifier ("omp declare target link"),
1624 : clauses, list);
1625 295083 : else if (sym_attr.omp_declare_target
1626 294203 : || sym_attr.oacc_declare_create
1627 294160 : || sym_attr.oacc_declare_copyin
1628 294150 : || sym_attr.oacc_declare_deviceptr
1629 294150 : || sym_attr.oacc_declare_device_resident)
1630 949 : list = tree_cons (get_identifier ("omp declare target"),
1631 : clauses, list);
1632 : else
1633 : has_declare = false;
1634 :
1635 295092 : if (sym_attr.omp_declare_target_indirect)
1636 46 : list = tree_cons (get_identifier ("omp declare target indirect"),
1637 : clauses, list);
1638 :
1639 295092 : decl_attributes (decl_p, list, 0);
1640 :
1641 295092 : if (has_declare
1642 958 : && VAR_P (*decl_p)
1643 411 : && sym->ns->proc_name->attr.flavor != FL_MODULE)
1644 : {
1645 150 : has_declare = false;
1646 618 : for (gfc_namespace* ns = sym->ns->contained; ns; ns = ns->sibling)
1647 471 : if (ns->proc_name->attr.omp_declare_target)
1648 : {
1649 : has_declare = true;
1650 : break;
1651 : }
1652 : }
1653 :
1654 958 : if (has_declare && VAR_P (*decl_p) && has_declare)
1655 : {
1656 : /* Add to offload_vars; get_create does so for omp_declare_target,
1657 : omp_declare_target_link requires manual work. */
1658 264 : gcc_assert (symtab_node::get (*decl_p) == 0);
1659 264 : symtab_node *node = symtab_node::get_create (*decl_p);
1660 264 : if (node != NULL && sym_attr.omp_declare_target_link)
1661 : {
1662 8 : node->offloadable = 1;
1663 8 : if (ENABLE_OFFLOADING)
1664 : {
1665 : g->have_offload = true;
1666 : if (is_a <varpool_node *> (node))
1667 : vec_safe_push (offload_vars, *decl_p);
1668 : }
1669 : }
1670 : }
1671 295092 : }
1672 :
1673 :
1674 : static void build_function_decl (gfc_symbol * sym, bool global);
1675 :
1676 :
1677 : /* Return the decl for a gfc_symbol, create it if it doesn't already
1678 : exist. */
1679 :
1680 : tree
1681 1876137 : gfc_get_symbol_decl (gfc_symbol * sym)
1682 : {
1683 1876137 : tree decl;
1684 1876137 : tree length = NULL_TREE;
1685 1876137 : int byref;
1686 1876137 : bool intrinsic_array_parameter = false;
1687 1876137 : bool fun_or_res;
1688 :
1689 1876137 : gcc_assert (sym->attr.referenced
1690 : || sym->attr.flavor == FL_PROCEDURE
1691 : || sym->attr.use_assoc
1692 : || sym->attr.used_in_submodule
1693 : || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY
1694 : || (sym->module && sym->attr.if_source != IFSRC_DECL
1695 : && sym->backend_decl));
1696 :
1697 336639 : if (sym->attr.dummy && sym->ns->proc_name->attr.is_bind_c
1698 1900120 : && is_CFI_desc (sym, NULL))
1699 : {
1700 15489 : gcc_assert (sym->backend_decl && (sym->ts.type != BT_CHARACTER
1701 : || sym->ts.u.cl->backend_decl));
1702 : return sym->backend_decl;
1703 : }
1704 :
1705 1860648 : if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function)
1706 241087 : byref = gfc_return_by_reference (sym->ns->proc_name);
1707 : else
1708 : byref = 0;
1709 :
1710 : /* Make sure that the vtab for the declared type is completed. */
1711 1860648 : if (sym->ts.type == BT_CLASS)
1712 : {
1713 88945 : gfc_component *c = CLASS_DATA (sym);
1714 88945 : if (!c->ts.u.derived->backend_decl)
1715 : {
1716 2596 : gfc_find_derived_vtab (c->ts.u.derived);
1717 2596 : gfc_get_derived_type (sym->ts.u.derived);
1718 : }
1719 : }
1720 :
1721 : /* PDT parameterized array components and string_lengths must have the
1722 : 'len' parameters substituted for the expressions appearing in the
1723 : declaration of the entity and memory allocated/deallocated. */
1724 1860648 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1725 335125 : && sym->param_list != NULL
1726 4928 : && (gfc_current_ns == sym->ns
1727 817 : || (gfc_current_ns == sym->ns->parent
1728 762 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1729 4508 : && !(sym->attr.use_assoc || sym->attr.dummy || sym->attr.result))
1730 3450 : gfc_defer_symbol_init (sym);
1731 :
1732 1860648 : if ((sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_comp)
1733 68 : && (gfc_current_ns == sym->ns
1734 10 : || (gfc_current_ns == sym->ns->parent
1735 9 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1736 58 : && !(sym->attr.use_assoc || sym->attr.dummy || sym->attr.result))
1737 48 : gfc_defer_symbol_init (sym);
1738 :
1739 : /* Dummy PDT 'len' parameters should be checked when they are explicit. */
1740 1860648 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1741 335125 : && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
1742 11516 : && sym->param_list != NULL
1743 454 : && sym->attr.dummy)
1744 189 : gfc_defer_symbol_init (sym);
1745 :
1746 : /* All deferred character length procedures need to retain the backend
1747 : decl, which is a pointer to the character length in the caller's
1748 : namespace and to declare a local character length. */
1749 1860648 : if (!byref && sym->attr.function
1750 19832 : && sym->ts.type == BT_CHARACTER
1751 1386 : && sym->ts.deferred
1752 268 : && sym->ts.u.cl->passed_length == NULL
1753 12 : && sym->ts.u.cl->backend_decl
1754 0 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1755 : {
1756 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1757 0 : gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)));
1758 0 : sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1759 : }
1760 :
1761 18081 : fun_or_res = byref && (sym->attr.result
1762 14222 : || (sym->attr.function && sym->ts.deferred));
1763 1860648 : if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res)
1764 : {
1765 : /* Return via extra parameter. */
1766 324445 : if (sym->attr.result && byref
1767 3859 : && !sym->backend_decl)
1768 : {
1769 2456 : sym->backend_decl =
1770 1228 : DECL_ARGUMENTS (sym->ns->proc_name->backend_decl);
1771 : /* For entry master function skip over the __entry
1772 : argument. */
1773 1228 : if (sym->ns->proc_name->attr.entry_master)
1774 83 : sym->backend_decl = DECL_CHAIN (sym->backend_decl);
1775 : }
1776 :
1777 : /* Automatic array indices in module procedures need the backend_decl
1778 : to be extracted from the procedure formal arglist. */
1779 324445 : if (sym->attr.dummy && !sym->backend_decl)
1780 : {
1781 12 : gfc_formal_arglist *f;
1782 18 : for (f = sym->ns->proc_name->formal; f; f = f->next)
1783 : {
1784 18 : gfc_symbol *fsym = f->sym;
1785 18 : if (strcmp (sym->name, fsym->name))
1786 6 : continue;
1787 12 : sym->backend_decl = fsym->backend_decl;
1788 12 : break;
1789 : }
1790 : }
1791 :
1792 : /* Dummy variables should already have been created. */
1793 324445 : gcc_assert (sym->backend_decl);
1794 :
1795 : /* However, the string length of deferred arrays must be set. */
1796 324445 : if (sym->ts.type == BT_CHARACTER
1797 29522 : && sym->ts.deferred
1798 3656 : && sym->attr.dimension
1799 1336 : && sym->attr.allocatable)
1800 530 : gfc_defer_symbol_init (sym);
1801 :
1802 17307 : if ((sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS)
1803 331653 : || gfc_is_span_addressed_dummy (sym))
1804 10735 : GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1;
1805 :
1806 : /* Create a character length variable. */
1807 324445 : if (sym->ts.type == BT_CHARACTER)
1808 : {
1809 : /* For a deferred dummy, make a new string length variable. */
1810 29522 : if (sym->ts.deferred
1811 3656 : &&
1812 3656 : (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl))
1813 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1814 :
1815 29522 : if (sym->ts.deferred && byref)
1816 : {
1817 : /* The string length of a deferred char array is stored in the
1818 : parameter at sym->ts.u.cl->backend_decl as a reference and
1819 : marked as a result. Exempt this variable from generating a
1820 : temporary for it. */
1821 799 : if (sym->attr.result)
1822 : {
1823 : /* We need to insert a indirect ref for param decls. */
1824 688 : if (sym->ts.u.cl->backend_decl
1825 688 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1826 : {
1827 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1828 0 : sym->ts.u.cl->backend_decl =
1829 0 : build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1830 : }
1831 : }
1832 : /* For all other parameters make sure, that they are copied so
1833 : that the value and any modifications are local to the routine
1834 : by generating a temporary variable. */
1835 111 : else if (sym->attr.function
1836 99 : && sym->ts.u.cl->passed_length == NULL
1837 0 : && sym->ts.u.cl->backend_decl)
1838 : {
1839 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1840 0 : if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)))
1841 0 : sym->ts.u.cl->backend_decl
1842 0 : = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1843 : else
1844 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1845 : }
1846 : }
1847 :
1848 29522 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1849 1 : length = gfc_create_string_length (sym);
1850 : else
1851 : length = sym->ts.u.cl->backend_decl;
1852 29522 : if (VAR_P (length) && DECL_FILE_SCOPE_P (length))
1853 : {
1854 : /* Add the string length to the same context as the symbol. */
1855 725 : if (DECL_CONTEXT (length) == NULL_TREE)
1856 : {
1857 725 : if (sym->backend_decl == current_function_decl
1858 725 : || (DECL_CONTEXT (sym->backend_decl)
1859 : == current_function_decl))
1860 718 : gfc_add_decl_to_function (length);
1861 : else
1862 7 : gfc_add_decl_to_parent_function (length);
1863 : }
1864 :
1865 : /* When the symbol's own backend_decl is a FUNCTION_DECL, its
1866 : DECL_CONTEXT is where that function itself is declared, not
1867 : where its locals live. */
1868 725 : gcc_assert (TREE_CODE (sym->backend_decl) == FUNCTION_DECL
1869 : ? DECL_CONTEXT (length) == sym->backend_decl
1870 : : (DECL_CONTEXT (sym->backend_decl)
1871 : == DECL_CONTEXT (length)));
1872 :
1873 725 : gfc_defer_symbol_init (sym);
1874 : }
1875 : }
1876 :
1877 : /* Use a copy of the descriptor for dummy arrays. */
1878 324445 : if ((sym->attr.dimension || sym->attr.codimension)
1879 112262 : && !TREE_USED (sym->backend_decl))
1880 : {
1881 20630 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1882 : /* Prevent the dummy from being detected as unused if it is copied. */
1883 20630 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1884 5935 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1885 20630 : sym->backend_decl = decl;
1886 : }
1887 :
1888 : /* Returning the descriptor for dummy class arrays is hazardous, because
1889 : some caller is expecting an expression to apply the component refs to.
1890 : Therefore the descriptor is only created and stored in
1891 : sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then
1892 : responsible to extract it from there, when the descriptor is
1893 : desired. */
1894 28406 : if (IS_CLASS_COARRAY_OR_ARRAY (sym)
1895 335388 : && (!DECL_LANG_SPECIFIC (sym->backend_decl)
1896 8363 : || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl)))
1897 : {
1898 4462 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1899 : /* Prevent the dummy from being detected as unused if it is copied. */
1900 4462 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1901 958 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1902 4462 : sym->backend_decl = decl;
1903 : }
1904 :
1905 324445 : TREE_USED (sym->backend_decl) = 1;
1906 324445 : if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1907 6 : gfc_add_assign_aux_vars (sym);
1908 :
1909 324445 : if (sym->ts.type == BT_CLASS && sym->backend_decl
1910 28406 : && !IS_CLASS_COARRAY_OR_ARRAY (sym))
1911 17463 : GFC_DECL_CLASS (sym->backend_decl) = 1;
1912 :
1913 324445 : return sym->backend_decl;
1914 : }
1915 :
1916 16092 : if (sym->result == sym && sym->attr.assign
1917 1536208 : && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1918 1 : gfc_add_assign_aux_vars (sym);
1919 :
1920 1536203 : if (sym->backend_decl)
1921 : return sym->backend_decl;
1922 :
1923 : /* Special case for array-valued named constants from intrinsic
1924 : procedures; those are inlined. */
1925 203505 : if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER
1926 144 : && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV
1927 144 : || sym->from_intmod == INTMOD_ISO_C_BINDING))
1928 203505 : intrinsic_array_parameter = true;
1929 :
1930 : /* If use associated compilation, use the module
1931 : declaration. */
1932 203505 : if ((sym->attr.flavor == FL_VARIABLE
1933 203505 : || sym->attr.flavor == FL_PARAMETER)
1934 188566 : && (sym->attr.use_assoc || sym->attr.used_in_submodule)
1935 3010 : && !intrinsic_array_parameter
1936 2995 : && sym->module
1937 206500 : && gfc_get_module_backend_decl (sym))
1938 : {
1939 2861 : if (sym->ts.type == BT_CLASS && sym->backend_decl)
1940 39 : GFC_DECL_CLASS(sym->backend_decl) = 1;
1941 2861 : return sym->backend_decl;
1942 : }
1943 :
1944 200644 : if (sym->attr.flavor == FL_PROCEDURE)
1945 : {
1946 : /* Catch functions. Only used for actual parameters,
1947 : procedure pointers and procptr initialization targets. */
1948 14813 : if (sym->attr.use_assoc
1949 13960 : || sym->attr.used_in_submodule
1950 13954 : || sym->attr.intrinsic
1951 12649 : || sym->attr.if_source != IFSRC_DECL)
1952 : {
1953 3194 : decl = gfc_get_extern_function_decl (sym);
1954 : }
1955 : else
1956 : {
1957 11619 : if (!sym->backend_decl)
1958 11619 : build_function_decl (sym, false);
1959 11619 : decl = sym->backend_decl;
1960 : }
1961 14813 : return decl;
1962 : }
1963 :
1964 185831 : if (sym->ts.type == BT_UNKNOWN)
1965 0 : gfc_fatal_error ("%s at %L has no default type", sym->name,
1966 : &sym->declared_at);
1967 :
1968 185831 : if (sym->attr.intrinsic)
1969 0 : gfc_internal_error ("intrinsic variable which isn't a procedure");
1970 :
1971 : /* Create string length decl first so that they can be used in the
1972 : type declaration. For associate names, the target character
1973 : length is used. Set 'length' to a constant so that if the
1974 : string length is a variable, it is not finished a second time. */
1975 185831 : if (sym->ts.type == BT_CHARACTER)
1976 : {
1977 16152 : if (sym->attr.associate_var
1978 1803 : && sym->ts.deferred
1979 347 : && sym->assoc && sym->assoc->target
1980 347 : && ((sym->assoc->target->expr_type == EXPR_VARIABLE
1981 229 : && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER)
1982 304 : || sym->assoc->target->expr_type != EXPR_VARIABLE))
1983 161 : sym->ts.u.cl->backend_decl = NULL_TREE;
1984 :
1985 16152 : if (sym->attr.associate_var
1986 1803 : && sym->ts.u.cl->backend_decl
1987 639 : && (VAR_P (sym->ts.u.cl->backend_decl)
1988 374 : || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL))
1989 313 : length = gfc_index_zero_node;
1990 : else
1991 15839 : length = gfc_create_string_length (sym);
1992 : }
1993 :
1994 : /* Create the decl for the variable. */
1995 185831 : decl = build_decl (gfc_get_location (&sym->declared_at),
1996 : VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym));
1997 :
1998 : /* Symbols from modules should have their assembler names mangled.
1999 : This is done here rather than in gfc_finish_var_decl because it
2000 : is different for string length variables. */
2001 185831 : if (sym->module || sym->fn_result_spec)
2002 : {
2003 19140 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
2004 19140 : if (sym->attr.use_assoc && !intrinsic_array_parameter)
2005 131 : DECL_IGNORED_P (decl) = 1;
2006 : }
2007 :
2008 185831 : if (sym->attr.select_type_temporary)
2009 : {
2010 5857 : DECL_ARTIFICIAL (decl) = 1;
2011 5857 : DECL_IGNORED_P (decl) = 1;
2012 : }
2013 :
2014 185831 : if (sym->attr.dimension || sym->attr.codimension)
2015 : {
2016 : /* Create variables to hold the non-constant bits of array info. */
2017 49651 : gfc_build_qualified_array (decl, sym);
2018 :
2019 49651 : if (sym->attr.contiguous
2020 49582 : || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer))
2021 44833 : GFC_DECL_PACKED_ARRAY (decl) = 1;
2022 : }
2023 :
2024 : /* Remember this variable for allocation/cleanup. */
2025 136656 : if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension
2026 133802 : || (sym->ts.type == BT_CLASS &&
2027 5020 : (CLASS_DATA (sym)->attr.dimension
2028 2815 : || CLASS_DATA (sym)->attr.allocatable))
2029 130077 : || (sym->ts.type == BT_DERIVED
2030 30450 : && (sym->ts.u.derived->attr.alloc_comp
2031 23582 : || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save
2032 5444 : && !sym->ns->proc_name->attr.is_main_program
2033 2250 : && gfc_is_finalizable (sym->ts.u.derived, NULL))))
2034 : /* This applies a derived type default initializer. */
2035 308785 : || (sym->ts.type == BT_DERIVED
2036 23327 : && sym->attr.save == SAVE_NONE
2037 6805 : && !sym->attr.data
2038 6756 : && !sym->attr.allocatable
2039 6756 : && (sym->value && !sym->ns->proc_name->attr.is_main_program)
2040 560 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)))
2041 63437 : gfc_defer_symbol_init (sym);
2042 :
2043 : /* Set the vptr of unlimited polymorphic pointer variables so that
2044 : they do not cause segfaults in select type, when the selector
2045 : is an intrinsic type. Arrays are captured above. */
2046 185831 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
2047 1146 : && CLASS_DATA (sym)->attr.class_pointer
2048 704 : && !CLASS_DATA (sym)->attr.dimension && !sym->attr.dummy
2049 303 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc)
2050 172 : gfc_defer_symbol_init (sym);
2051 :
2052 185831 : if (sym->ts.type == BT_CHARACTER
2053 16152 : && sym->attr.allocatable
2054 1947 : && !sym->attr.dimension
2055 1006 : && sym->ts.u.cl && sym->ts.u.cl->length
2056 198 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
2057 27 : gfc_defer_symbol_init (sym);
2058 :
2059 : /* Associate names can use the hidden string length variable
2060 : of their associated target. */
2061 185831 : if (sym->ts.type == BT_CHARACTER
2062 16152 : && TREE_CODE (length) != INTEGER_CST
2063 3352 : && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF)
2064 : {
2065 3292 : length = fold_convert (gfc_charlen_type_node, length);
2066 3292 : gfc_finish_var_decl (length, sym);
2067 3292 : if (!sym->attr.associate_var
2068 2254 : && VAR_P (length)
2069 2254 : && sym->value && sym->value->expr_type != EXPR_NULL
2070 6 : && sym->value->ts.u.cl->length)
2071 : {
2072 6 : gfc_expr *len = sym->value->ts.u.cl->length;
2073 6 : DECL_INITIAL (length) = gfc_conv_initializer (len, &len->ts,
2074 6 : TREE_TYPE (length),
2075 : false, false, false);
2076 6 : DECL_INITIAL (length) = fold_convert (gfc_charlen_type_node,
2077 : DECL_INITIAL (length));
2078 6 : }
2079 : else
2080 3286 : gcc_assert (!sym->value || sym->value->expr_type == EXPR_NULL);
2081 : }
2082 :
2083 185831 : gfc_finish_var_decl (decl, sym);
2084 :
2085 185831 : if (sym->ts.type == BT_CHARACTER)
2086 : /* Character variables need special handling. */
2087 16152 : gfc_allocate_lang_decl (decl);
2088 :
2089 185831 : if (sym->assoc && sym->attr.subref_array_pointer)
2090 410 : sym->attr.pointer = 1;
2091 :
2092 185831 : if (sym->attr.pointer && sym->attr.dimension
2093 5003 : && !sym->ts.deferred
2094 4714 : && !(sym->attr.select_type_temporary
2095 1146 : && !sym->attr.subref_array_pointer))
2096 3734 : GFC_DECL_PTR_ARRAY_P (decl) = 1;
2097 :
2098 : /* A SELECT RANK temporary uses a copy of the selector's descriptor.
2099 : Its elements may be spaced by more than the element size,
2100 : so use copied span as well. */
2101 1404 : if (sym->attr.select_rank_temporary && sym->attr.dimension
2102 1210 : && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (decl))
2103 1210 : && sym->assoc && sym->assoc->target
2104 187041 : && sym->assoc->target->expr_type == EXPR_VARIABLE)
2105 : {
2106 1210 : gfc_symbol *sel = sym->assoc->target->symtree->n.sym;
2107 1210 : if (!sel->attr.contiguous
2108 1072 : && (sel->attr.target || sel->attr.pointer || sel->ts.type == BT_CLASS))
2109 220 : GFC_DECL_PTR_ARRAY_P (decl) = 1;
2110 : }
2111 :
2112 185831 : if (sym->ts.type == BT_CLASS)
2113 5020 : GFC_DECL_CLASS(decl) = 1;
2114 :
2115 185831 : sym->backend_decl = decl;
2116 :
2117 185831 : if (sym->attr.assign)
2118 59 : gfc_add_assign_aux_vars (sym);
2119 :
2120 185831 : if (intrinsic_array_parameter)
2121 : {
2122 15 : TREE_STATIC (decl) = 1;
2123 15 : DECL_EXTERNAL (decl) = 0;
2124 : }
2125 :
2126 185831 : if (TREE_STATIC (decl)
2127 40761 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)
2128 40761 : && (sym->attr.save || sym->ns->proc_name->attr.is_main_program
2129 1525 : || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
2130 1486 : || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE
2131 53 : || intrinsic_array_parameter)
2132 40709 : && (flag_coarray != GFC_FCOARRAY_LIB
2133 2229 : || !sym->attr.codimension || sym->attr.allocatable)
2134 226190 : && !(IS_PDT (sym) || IS_CLASS_PDT (sym)))
2135 : {
2136 : /* Add static initializer. For procedures, it is only needed if
2137 : SAVE is specified otherwise they need to be reinitialized
2138 : every time the procedure is entered. The TREE_STATIC is
2139 : in this case due to -fmax-stack-var-size=. */
2140 :
2141 39772 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2142 79544 : TREE_TYPE (decl), sym->attr.dimension
2143 33639 : || (sym->attr.codimension
2144 38 : && sym->attr.allocatable),
2145 39215 : sym->attr.pointer || sym->attr.allocatable
2146 38790 : || sym->ts.type == BT_CLASS,
2147 39772 : sym->attr.proc_pointer);
2148 : }
2149 :
2150 185831 : if (!TREE_STATIC (decl)
2151 145070 : && POINTER_TYPE_P (TREE_TYPE (decl))
2152 19428 : && !sym->attr.pointer
2153 13353 : && !sym->attr.allocatable
2154 11086 : && !sym->attr.proc_pointer
2155 196917 : && !sym->attr.select_type_temporary)
2156 8491 : DECL_BY_REFERENCE (decl) = 1;
2157 :
2158 185831 : if (sym->attr.associate_var)
2159 7544 : GFC_DECL_ASSOCIATE_VAR_P (decl) = 1;
2160 :
2161 : /* We only longer mark __def_init as read-only if it actually has an
2162 : initializer, it does not needlessly take up space in the
2163 : read-only section and can go into the BSS instead, see PR 84487.
2164 : Marking this as artificial means that OpenMP will treat this as
2165 : predetermined shared. */
2166 :
2167 185831 : bool def_init = startswith (sym->name, "__def_init");
2168 :
2169 185831 : if (sym->attr.vtab || def_init)
2170 : {
2171 19223 : DECL_ARTIFICIAL (decl) = 1;
2172 19223 : if (def_init && sym->value)
2173 3830 : TREE_READONLY (decl) = 1;
2174 : }
2175 :
2176 : /* Add attributes to variables. Functions are handled elsewhere. */
2177 185831 : add_attributes_to_decl (&decl, sym);
2178 :
2179 185831 : if (sym->ts.deferred && VAR_P (length))
2180 1894 : decl_attributes (&length, DECL_ATTRIBUTES (decl), 0);
2181 :
2182 185831 : return decl;
2183 : }
2184 :
2185 :
2186 : /* Substitute a temporary variable in place of the real one. */
2187 :
2188 : void
2189 6037 : gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save)
2190 : {
2191 6037 : save->attr = sym->attr;
2192 6037 : save->decl = sym->backend_decl;
2193 :
2194 6037 : gfc_clear_attr (&sym->attr);
2195 6037 : sym->attr.referenced = 1;
2196 6037 : sym->attr.flavor = FL_VARIABLE;
2197 :
2198 6037 : sym->backend_decl = decl;
2199 6037 : }
2200 :
2201 :
2202 : /* Restore the original variable. */
2203 :
2204 : void
2205 6037 : gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save)
2206 : {
2207 6037 : sym->attr = save->attr;
2208 6037 : sym->backend_decl = save->decl;
2209 6037 : }
2210 :
2211 :
2212 : /* Declare a procedure pointer. */
2213 :
2214 : static tree
2215 719 : get_proc_pointer_decl (gfc_symbol *sym)
2216 : {
2217 719 : tree decl;
2218 :
2219 719 : if (sym->module || sym->fn_result_spec)
2220 : {
2221 149 : const char *name;
2222 149 : gfc_gsymbol *gsym;
2223 :
2224 149 : name = mangled_identifier (sym);
2225 149 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
2226 149 : if (gsym != NULL)
2227 : {
2228 79 : gfc_symbol *s;
2229 79 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2230 79 : if (s && s->backend_decl)
2231 79 : return s->backend_decl;
2232 : }
2233 : }
2234 :
2235 640 : decl = sym->backend_decl;
2236 640 : if (decl)
2237 : return decl;
2238 :
2239 640 : decl = build_decl (input_location,
2240 : VAR_DECL, get_identifier (sym->name),
2241 : build_pointer_type (gfc_get_function_type (sym)));
2242 :
2243 640 : if (sym->module)
2244 : {
2245 : /* Apply name mangling. */
2246 70 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
2247 70 : if (sym->attr.use_assoc)
2248 0 : DECL_IGNORED_P (decl) = 1;
2249 : }
2250 :
2251 640 : if ((sym->ns->proc_name
2252 640 : && sym->ns->proc_name->backend_decl == current_function_decl)
2253 82 : || sym->attr.contained
2254 82 : || (sym->ns->proc_name
2255 82 : && sym->ns->proc_name->attr.flavor == FL_LABEL))
2256 : /* The last condition handles BLOCK constructs: the proc_name has
2257 : FL_LABEL flavor and its backend_decl is not set, but the proc pointer
2258 : belongs to the enclosing function (current_function_decl). */
2259 564 : gfc_add_decl_to_function (decl);
2260 76 : else if (sym->ns->proc_name->attr.flavor != FL_MODULE)
2261 6 : gfc_add_decl_to_parent_function (decl);
2262 :
2263 640 : sym->backend_decl = decl;
2264 :
2265 : /* If a variable is USE associated, it's always external. */
2266 640 : if (sym->attr.use_assoc)
2267 : {
2268 0 : DECL_EXTERNAL (decl) = 1;
2269 0 : TREE_PUBLIC (decl) = 1;
2270 : }
2271 640 : else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE)
2272 : {
2273 : /* This is the declaration of a module variable. */
2274 70 : TREE_PUBLIC (decl) = 1;
2275 70 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
2276 : {
2277 8 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
2278 8 : DECL_VISIBILITY_SPECIFIED (decl) = true;
2279 : }
2280 70 : TREE_STATIC (decl) = 1;
2281 : }
2282 :
2283 640 : if (!sym->attr.use_assoc
2284 640 : && (sym->attr.save != SAVE_NONE || sym->attr.data
2285 497 : || (sym->value && sym->ns->proc_name->attr.is_main_program)))
2286 143 : TREE_STATIC (decl) = 1;
2287 :
2288 640 : if (TREE_STATIC (decl) && sym->value)
2289 : {
2290 : /* Add static initializer. */
2291 103 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2292 103 : TREE_TYPE (decl),
2293 103 : sym->attr.dimension,
2294 : false, true);
2295 : }
2296 :
2297 640 : add_attributes_to_decl (&decl, sym);
2298 :
2299 : /* Handle threadprivate procedure pointers. */
2300 640 : if (sym->attr.threadprivate
2301 640 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
2302 12 : set_decl_tls_model (decl, decl_default_tls_model (decl));
2303 :
2304 640 : return decl;
2305 : }
2306 :
2307 : static void
2308 : create_function_arglist (gfc_symbol *sym);
2309 :
2310 : /* Get a basic decl for an external function. */
2311 :
2312 : tree
2313 37777 : gfc_get_extern_function_decl (gfc_symbol * sym, gfc_actual_arglist *actual_args,
2314 : const char *fnspec)
2315 : {
2316 37777 : tree type;
2317 37777 : tree fndecl;
2318 37777 : gfc_expr e;
2319 37777 : gfc_intrinsic_sym *isym;
2320 37777 : gfc_expr argexpr;
2321 37777 : char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */
2322 37777 : tree name;
2323 37777 : tree mangled_name;
2324 37777 : gfc_gsymbol *gsym;
2325 :
2326 37777 : if (sym->backend_decl)
2327 : return sym->backend_decl;
2328 :
2329 : /* We should never be creating external decls for alternate entry points.
2330 : The procedure may be an alternate entry point, but we don't want/need
2331 : to know that. */
2332 37777 : gcc_assert (!(sym->attr.entry || sym->attr.entry_master));
2333 :
2334 37777 : if (sym->attr.proc_pointer)
2335 719 : return get_proc_pointer_decl (sym);
2336 :
2337 : /* See if this is an external procedure from the same file. If so,
2338 : return the backend_decl. If we are looking at a BIND(C)
2339 : procedure and the symbol is not BIND(C), or vice versa, we
2340 : haven't found the right procedure. */
2341 :
2342 37058 : if (sym->binding_label)
2343 : {
2344 2629 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label);
2345 2629 : if (gsym && !gsym->bind_c)
2346 : gsym = NULL;
2347 : }
2348 34429 : else if (sym->module == NULL)
2349 : {
2350 20184 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name);
2351 20184 : if (gsym && gsym->bind_c)
2352 : gsym = NULL;
2353 : }
2354 : else
2355 : {
2356 : /* Procedure from a different module. */
2357 : gsym = NULL;
2358 : }
2359 :
2360 11136 : if (gsym && !gsym->defined)
2361 : gsym = NULL;
2362 :
2363 : /* This can happen because of C binding. */
2364 7958 : if (gsym && gsym->ns && gsym->ns->proc_name
2365 7958 : && gsym->ns->proc_name->attr.flavor == FL_MODULE)
2366 557 : goto module_sym;
2367 :
2368 36501 : if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL)
2369 26248 : && !sym->backend_decl
2370 26248 : && gsym && gsym->ns
2371 7401 : && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION))
2372 7401 : && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic))
2373 : {
2374 7401 : if (!gsym->ns->proc_name->backend_decl)
2375 : {
2376 : /* By construction, the external function cannot be
2377 : a contained procedure. */
2378 775 : location_t old_loc = input_location;
2379 775 : push_cfun (NULL);
2380 :
2381 775 : gfc_create_function_decl (gsym->ns, true);
2382 :
2383 775 : pop_cfun ();
2384 775 : input_location = old_loc;
2385 : }
2386 :
2387 : /* If the namespace has entries, the proc_name is the
2388 : entry master. Find the entry and use its backend_decl.
2389 : otherwise, use the proc_name backend_decl. */
2390 7401 : if (gsym->ns->entries)
2391 : {
2392 : gfc_entry_list *entry = gsym->ns->entries;
2393 :
2394 1409 : for (; entry; entry = entry->next)
2395 : {
2396 1409 : if (strcmp (gsym->name, entry->sym->name) == 0)
2397 : {
2398 859 : sym->backend_decl = entry->sym->backend_decl;
2399 859 : break;
2400 : }
2401 : }
2402 : }
2403 : else
2404 6542 : sym->backend_decl = gsym->ns->proc_name->backend_decl;
2405 :
2406 7401 : if (sym->backend_decl)
2407 : {
2408 : /* Avoid problems of double deallocation of the backend declaration
2409 : later in gfc_trans_use_stmts; cf. PR 45087. */
2410 7401 : if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc)
2411 0 : sym->attr.use_assoc = 0;
2412 :
2413 : return sym->backend_decl;
2414 : }
2415 : }
2416 :
2417 : /* See if this is a module procedure from the same file. If so,
2418 : return the backend_decl. */
2419 29100 : if (sym->module)
2420 15136 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
2421 :
2422 29657 : module_sym:
2423 29657 : if (gsym && gsym->ns
2424 12084 : && (gsym->type == GSYM_MODULE
2425 557 : || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE)))
2426 : {
2427 12084 : gfc_symbol *s;
2428 :
2429 12084 : s = NULL;
2430 12084 : if (gsym->type == GSYM_MODULE)
2431 11527 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2432 : else
2433 557 : gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s);
2434 :
2435 12084 : if (s && s->backend_decl)
2436 : {
2437 9999 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
2438 1235 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
2439 : true);
2440 8764 : else if (sym->ts.type == BT_CHARACTER)
2441 423 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
2442 9999 : sym->backend_decl = s->backend_decl;
2443 9999 : return sym->backend_decl;
2444 : }
2445 : }
2446 :
2447 19658 : if (sym->attr.intrinsic)
2448 : {
2449 : /* Call the resolution function to get the actual name. This is
2450 : a nasty hack which relies on the resolution functions only looking
2451 : at the first argument. We pass NULL for the second argument
2452 : otherwise things like AINT get confused. */
2453 1306 : isym = gfc_find_function (sym->name);
2454 1306 : gcc_assert (isym->resolve.f0 != NULL);
2455 :
2456 1306 : memset (&e, 0, sizeof (e));
2457 1306 : e.expr_type = EXPR_FUNCTION;
2458 1306 : e.value.function.isym = isym;
2459 :
2460 1306 : memset (&argexpr, 0, sizeof (argexpr));
2461 1306 : gcc_assert (isym->formal);
2462 1306 : argexpr.ts = isym->formal->ts;
2463 :
2464 1306 : if (isym->formal->next == NULL)
2465 1057 : isym->resolve.f1 (&e, &argexpr);
2466 : else
2467 : {
2468 249 : if (isym->formal->next->next == NULL)
2469 233 : isym->resolve.f2 (&e, &argexpr, NULL);
2470 : else
2471 : {
2472 16 : if (isym->formal->next->next->next == NULL)
2473 0 : isym->resolve.f3 (&e, &argexpr, NULL, NULL);
2474 : else
2475 : {
2476 : /* All specific intrinsics take less than 5 arguments. */
2477 16 : gcc_assert (isym->formal->next->next->next->next == NULL);
2478 16 : isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL);
2479 : }
2480 : }
2481 : }
2482 :
2483 1306 : if (flag_f2c
2484 438 : && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind)
2485 300 : || e.ts.type == BT_COMPLEX))
2486 : {
2487 : /* Specific which needs a different implementation if f2c
2488 : calling conventions are used. */
2489 240 : sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name);
2490 : }
2491 : else
2492 1066 : sprintf (s, "_gfortran_specific%s", e.value.function.name);
2493 :
2494 1306 : name = get_identifier (s);
2495 1306 : mangled_name = name;
2496 : }
2497 : else
2498 : {
2499 18352 : name = gfc_sym_identifier (sym);
2500 18352 : mangled_name = gfc_sym_mangled_function_id (sym);
2501 : }
2502 :
2503 19658 : type = gfc_get_function_type (sym, actual_args, fnspec);
2504 :
2505 19658 : fndecl = build_decl (gfc_get_location (&sym->declared_at),
2506 : FUNCTION_DECL, name, type);
2507 :
2508 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2509 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2510 : the opposite of declaring a function as static in C). */
2511 19658 : DECL_EXTERNAL (fndecl) = 1;
2512 19658 : TREE_PUBLIC (fndecl) = 1;
2513 :
2514 19658 : add_attributes_to_decl (&fndecl, sym);
2515 :
2516 19658 : gfc_set_decl_assembler_name (fndecl, mangled_name);
2517 :
2518 : /* Set the context of this decl. */
2519 19658 : if (0 && sym->ns && sym->ns->proc_name)
2520 : {
2521 : /* TODO: Add external decls to the appropriate scope. */
2522 : DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl;
2523 : }
2524 : else
2525 : {
2526 : /* Global declaration, e.g. intrinsic subroutine. */
2527 19658 : DECL_CONTEXT (fndecl) = NULL_TREE;
2528 : }
2529 :
2530 : /* Set attributes for PURE functions. A call to PURE function in the
2531 : Fortran 95 sense is both pure and without side effects in the C
2532 : sense. */
2533 19658 : if (sym->attr.pure || sym->attr.implicit_pure)
2534 : {
2535 2117 : if (sym->attr.function && !gfc_return_by_reference (sym))
2536 1886 : DECL_PURE_P (fndecl) = 1;
2537 : /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT)
2538 : parameters and don't use alternate returns (is this
2539 : allowed?). In that case, calls to them are meaningless, and
2540 : can be optimized away. See also in build_function_decl(). */
2541 2117 : TREE_SIDE_EFFECTS (fndecl) = 0;
2542 : }
2543 :
2544 : /* Mark non-returning functions. */
2545 19658 : if (sym->attr.noreturn || sym->attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2546 112 : TREE_THIS_VOLATILE(fndecl) = 1;
2547 :
2548 19658 : sym->backend_decl = fndecl;
2549 :
2550 19658 : if (DECL_CONTEXT (fndecl) == NULL_TREE)
2551 19658 : pushdecl_top_level (fndecl);
2552 :
2553 19658 : if (sym->formal_ns
2554 17517 : && sym->formal_ns->proc_name == sym)
2555 : {
2556 17517 : if (sym->formal_ns->omp_declare_simd)
2557 15 : gfc_trans_omp_declare_simd (sym->formal_ns);
2558 17517 : if (flag_openmp)
2559 : {
2560 : // We need DECL_ARGUMENTS to put attributes on, in case some arguments
2561 : // need adjustment
2562 1872 : create_function_arglist (sym->formal_ns->proc_name);
2563 1872 : gfc_trans_omp_declare_variant (sym->formal_ns, sym->ns);
2564 : }
2565 : }
2566 :
2567 19658 : return fndecl;
2568 : }
2569 :
2570 :
2571 : /* Create a declaration for a procedure. For external functions (in the C
2572 : sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is
2573 : a master function with alternate entry points. */
2574 :
2575 : static void
2576 100582 : build_function_decl (gfc_symbol * sym, bool global)
2577 : {
2578 100582 : tree fndecl, type;
2579 100582 : symbol_attribute attr;
2580 100582 : tree result_decl;
2581 100582 : gfc_formal_arglist *f;
2582 :
2583 201164 : bool module_procedure = sym->attr.module_procedure
2584 473 : && sym->ns
2585 473 : && sym->ns->proc_name
2586 101055 : && sym->ns->proc_name->attr.flavor == FL_MODULE;
2587 :
2588 100582 : gcc_assert (!sym->attr.external || module_procedure);
2589 :
2590 100582 : if (sym->backend_decl)
2591 11619 : return;
2592 :
2593 : /* Set the line and filename. sym->declared_at seems to point to the
2594 : last statement for subroutines, but it'll do for now. */
2595 88963 : input_location = gfc_get_location (&sym->declared_at);
2596 :
2597 : /* Allow only one nesting level. Allow public declarations. */
2598 88963 : gcc_assert (current_function_decl == NULL_TREE
2599 : || DECL_FILE_SCOPE_P (current_function_decl)
2600 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2601 : == FUNCTION_DECL)
2602 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2603 : == NAMESPACE_DECL));
2604 :
2605 88963 : type = gfc_get_function_type (sym);
2606 88963 : fndecl = build_decl (input_location,
2607 : FUNCTION_DECL, gfc_sym_identifier (sym), type);
2608 :
2609 88963 : attr = sym->attr;
2610 :
2611 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2612 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2613 : the opposite of declaring a function as static in C). */
2614 88963 : DECL_EXTERNAL (fndecl) = 0;
2615 :
2616 88963 : if (sym->attr.access == ACCESS_UNKNOWN && sym->module
2617 25802 : && (sym->ns->default_access == ACCESS_PRIVATE
2618 23745 : || (sym->ns->default_access == ACCESS_UNKNOWN
2619 23732 : && flag_module_private)))
2620 2057 : sym->attr.access = ACCESS_PRIVATE;
2621 :
2622 27123 : bool in_module_contains = sym->module && sym->ns->proc_name
2623 116086 : && sym->ns->proc_name->attr.flavor == FL_MODULE;
2624 :
2625 88963 : if (!current_function_decl
2626 65248 : && !sym->attr.entry_master && !sym->attr.is_main_program
2627 37795 : && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label
2628 2245 : || sym->attr.public_used || in_module_contains))
2629 : {
2630 37795 : TREE_PUBLIC (fndecl) = 1;
2631 :
2632 : /* Mirror the variable treatment (see gfc_finish_var_decl): PRIVATE
2633 : module procedures get global linkage but hidden visibility so the
2634 : symbol is reachable from submodules in the same link without being
2635 : exported to external DSOs. A binding label has external linkage,
2636 : so PRIVATE hides only the Fortran name. */
2637 37795 : if (in_module_contains && sym->attr.access == ACCESS_PRIVATE
2638 2451 : && !sym->attr.public_used && !sym->binding_label)
2639 : {
2640 884 : DECL_VISIBILITY (fndecl) = VISIBILITY_HIDDEN;
2641 884 : DECL_VISIBILITY_SPECIFIED (fndecl) = true;
2642 : }
2643 : }
2644 :
2645 88963 : if (sym->attr.referenced || sym->attr.entry_master)
2646 41582 : TREE_USED (fndecl) = 1;
2647 :
2648 88963 : add_attributes_to_decl (&fndecl, sym);
2649 :
2650 : /* Figure out the return type of the declared function, and build a
2651 : RESULT_DECL for it. If this is a subroutine with alternate
2652 : returns, build a RESULT_DECL for it. */
2653 88963 : result_decl = NULL_TREE;
2654 : /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */
2655 88963 : if (sym->attr.function)
2656 : {
2657 16624 : if (gfc_return_by_reference (sym))
2658 3186 : type = void_type_node;
2659 : else
2660 : {
2661 13438 : if (sym->result != sym)
2662 6663 : result_decl = gfc_sym_identifier (sym->result);
2663 :
2664 13438 : type = TREE_TYPE (TREE_TYPE (fndecl));
2665 : }
2666 : }
2667 : else
2668 : {
2669 : /* Look for alternate return placeholders. */
2670 72339 : int has_alternate_returns = 0;
2671 153709 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2672 : {
2673 81439 : if (f->sym == NULL)
2674 : {
2675 : has_alternate_returns = 1;
2676 : break;
2677 : }
2678 : }
2679 :
2680 72339 : if (has_alternate_returns)
2681 69 : type = integer_type_node;
2682 : else
2683 72270 : type = void_type_node;
2684 : }
2685 :
2686 88963 : result_decl = build_decl (input_location,
2687 : RESULT_DECL, result_decl, type);
2688 88963 : DECL_ARTIFICIAL (result_decl) = 1;
2689 88963 : DECL_IGNORED_P (result_decl) = 1;
2690 88963 : DECL_CONTEXT (result_decl) = fndecl;
2691 88963 : DECL_RESULT (fndecl) = result_decl;
2692 :
2693 : /* Don't call layout_decl for a RESULT_DECL.
2694 : layout_decl (result_decl, 0); */
2695 :
2696 : /* TREE_STATIC means the function body is defined here. */
2697 88963 : TREE_STATIC (fndecl) = 1;
2698 :
2699 : /* Set attributes for PURE functions. A call to a PURE function in the
2700 : Fortran 95 sense is both pure and without side effects in the C
2701 : sense. */
2702 88963 : if (sym->attr.pure || sym->attr.implicit_pure)
2703 : {
2704 : /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments
2705 : including an alternate return. In that case it can also be
2706 : marked as PURE. See also in gfc_get_extern_function_decl(). */
2707 19895 : if (attr.function && !gfc_return_by_reference (sym))
2708 4830 : DECL_PURE_P (fndecl) = 1;
2709 19895 : TREE_SIDE_EFFECTS (fndecl) = 0;
2710 : }
2711 :
2712 : /* Mark noinline functions. */
2713 88963 : if (attr.ext_attr & (1 << EXT_ATTR_NOINLINE))
2714 5 : DECL_UNINLINABLE (fndecl) = 1;
2715 :
2716 : /* Mark inline functions. Fortran has no 'inline' keyword, so both INLINE
2717 : and ALWAYS_INLINE set DECL_DECLARED_INLINE_P explicitly. ALWAYS_INLINE
2718 : additionally disregards the inliner's size limits. Setting only that
2719 : would make the middle-end warn that the always-inline function "might
2720 : not be inlinable". */
2721 88963 : if (attr.ext_attr & ((1 << EXT_ATTR_INLINE) | (1 << EXT_ATTR_ALWAYS_INLINE)))
2722 2 : DECL_DECLARED_INLINE_P (fndecl) = 1;
2723 88963 : if (attr.ext_attr & (1 << EXT_ATTR_ALWAYS_INLINE))
2724 1 : DECL_DISREGARD_INLINE_LIMITS (fndecl) = 1;
2725 :
2726 : /* Mark noreturn functions. */
2727 88963 : if (attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2728 8 : TREE_THIS_VOLATILE (fndecl) = 1;
2729 :
2730 : /* Mark weak functions. */
2731 88963 : if (attr.ext_attr & (1 << EXT_ATTR_WEAK))
2732 6 : declare_weak (fndecl);
2733 :
2734 : /* Layout the function declaration and put it in the binding level
2735 : of the current function. */
2736 :
2737 88963 : if (global)
2738 778 : pushdecl_top_level (fndecl);
2739 : else
2740 88185 : pushdecl (fndecl);
2741 :
2742 : /* Perform name mangling if this is a top level or module procedure. */
2743 88963 : if (current_function_decl == NULL_TREE)
2744 65248 : gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym));
2745 :
2746 88963 : sym->backend_decl = fndecl;
2747 : }
2748 :
2749 :
2750 : /* Create the DECL_ARGUMENTS for a procedure.
2751 : NOTE: The arguments added here must match the argument type created by
2752 : gfc_get_function_type (). */
2753 :
2754 : static void
2755 90835 : create_function_arglist (gfc_symbol * sym)
2756 : {
2757 90835 : tree fndecl;
2758 90835 : gfc_formal_arglist *f;
2759 90835 : tree typelist, hidden_typelist, optval_typelist;
2760 90835 : tree arglist, hidden_arglist, optval_arglist;
2761 90835 : tree type;
2762 90835 : tree parm;
2763 :
2764 90835 : fndecl = sym->backend_decl;
2765 :
2766 : /* Build formal argument list. Make sure that their TREE_CONTEXT is
2767 : the new FUNCTION_DECL node. */
2768 90835 : arglist = NULL_TREE;
2769 90835 : hidden_arglist = NULL_TREE;
2770 90835 : optval_arglist = NULL_TREE;
2771 90835 : typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl));
2772 :
2773 90835 : if (sym->attr.entry_master)
2774 : {
2775 667 : type = TREE_VALUE (typelist);
2776 667 : parm = build_decl (input_location,
2777 : PARM_DECL, get_identifier ("__entry"), type);
2778 :
2779 667 : DECL_CONTEXT (parm) = fndecl;
2780 667 : DECL_ARG_TYPE (parm) = type;
2781 667 : TREE_READONLY (parm) = 1;
2782 667 : gfc_finish_decl (parm);
2783 667 : DECL_ARTIFICIAL (parm) = 1;
2784 :
2785 667 : arglist = chainon (arglist, parm);
2786 667 : typelist = TREE_CHAIN (typelist);
2787 : }
2788 :
2789 90835 : if (gfc_return_by_reference (sym))
2790 : {
2791 3228 : tree type = TREE_VALUE (typelist), length = NULL;
2792 :
2793 3228 : if (sym->ts.type == BT_CHARACTER)
2794 : {
2795 : /* Length of character result. */
2796 1665 : tree len_type = TREE_VALUE (TREE_CHAIN (typelist));
2797 :
2798 1665 : length = build_decl (input_location,
2799 : PARM_DECL,
2800 : get_identifier (".__result"),
2801 : len_type);
2802 1665 : if (POINTER_TYPE_P (len_type))
2803 : {
2804 294 : sym->ts.u.cl->passed_length = length;
2805 294 : TREE_USED (length) = 1;
2806 : }
2807 1371 : else if (!sym->ts.u.cl->length)
2808 : {
2809 157 : sym->ts.u.cl->backend_decl = length;
2810 157 : TREE_USED (length) = 1;
2811 : }
2812 1665 : gcc_assert (TREE_CODE (length) == PARM_DECL);
2813 1665 : DECL_CONTEXT (length) = fndecl;
2814 1665 : DECL_ARG_TYPE (length) = len_type;
2815 1665 : TREE_READONLY (length) = 1;
2816 1665 : DECL_ARTIFICIAL (length) = 1;
2817 1665 : gfc_finish_decl (length);
2818 1665 : if (sym->ts.u.cl->backend_decl == NULL
2819 642 : || sym->ts.u.cl->backend_decl == length)
2820 : {
2821 1180 : gfc_symbol *arg;
2822 1180 : tree backend_decl;
2823 :
2824 1180 : if (sym->ts.u.cl->backend_decl == NULL)
2825 : {
2826 1023 : tree len = build_decl (input_location,
2827 : VAR_DECL,
2828 : get_identifier ("..__result"),
2829 : gfc_charlen_type_node);
2830 1023 : DECL_ARTIFICIAL (len) = 1;
2831 1023 : TREE_USED (len) = 1;
2832 1023 : sym->ts.u.cl->backend_decl = len;
2833 : }
2834 :
2835 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2836 1180 : arg = sym->result ? sym->result : sym;
2837 1180 : backend_decl = arg->backend_decl;
2838 : /* Temporary clear it, so that gfc_sym_type creates complete
2839 : type. */
2840 1180 : arg->backend_decl = NULL;
2841 1180 : type = gfc_sym_type (arg);
2842 1180 : arg->backend_decl = backend_decl;
2843 1180 : type = build_reference_type (type);
2844 : }
2845 : }
2846 :
2847 3228 : parm = build_decl (input_location,
2848 : PARM_DECL, get_identifier ("__result"), type);
2849 :
2850 3228 : DECL_CONTEXT (parm) = fndecl;
2851 3228 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
2852 3228 : TREE_READONLY (parm) = 1;
2853 3228 : DECL_ARTIFICIAL (parm) = 1;
2854 3228 : gfc_finish_decl (parm);
2855 :
2856 3228 : arglist = chainon (arglist, parm);
2857 3228 : typelist = TREE_CHAIN (typelist);
2858 :
2859 3228 : if (sym->ts.type == BT_CHARACTER)
2860 : {
2861 1665 : gfc_allocate_lang_decl (parm);
2862 1665 : arglist = chainon (arglist, length);
2863 1665 : typelist = TREE_CHAIN (typelist);
2864 : }
2865 : }
2866 :
2867 90835 : hidden_typelist = typelist;
2868 198073 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2869 107238 : if (f->sym != NULL) /* Ignore alternate returns. */
2870 107139 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2871 :
2872 : /* Advance hidden_typelist over optional+value argument presence flags. */
2873 90835 : optval_typelist = hidden_typelist;
2874 198073 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2875 107238 : if (f->sym != NULL
2876 107139 : && f->sym->attr.optional && f->sym->attr.value
2877 560 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2878 524 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2879 :
2880 198073 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2881 : {
2882 107238 : char name[GFC_MAX_SYMBOL_LEN + 2];
2883 :
2884 : /* Ignore alternate returns. */
2885 107238 : if (f->sym == NULL)
2886 99 : continue;
2887 :
2888 107139 : type = TREE_VALUE (typelist);
2889 :
2890 107139 : if (f->sym->ts.type == BT_CHARACTER
2891 9709 : && (!sym->attr.is_bind_c || sym->attr.entry_master))
2892 : {
2893 8386 : tree len_type = TREE_VALUE (hidden_typelist);
2894 8386 : tree length = NULL_TREE;
2895 8386 : if (!f->sym->ts.deferred)
2896 7518 : gcc_assert (len_type == gfc_charlen_type_node);
2897 : else
2898 868 : gcc_assert (POINTER_TYPE_P (len_type));
2899 :
2900 8386 : strcpy (&name[1], f->sym->name);
2901 8386 : name[0] = '_';
2902 8386 : length = build_decl (input_location,
2903 : PARM_DECL, get_identifier (name), len_type);
2904 :
2905 8386 : hidden_arglist = chainon (hidden_arglist, length);
2906 8386 : DECL_CONTEXT (length) = fndecl;
2907 8386 : DECL_ARTIFICIAL (length) = 1;
2908 8386 : DECL_ARG_TYPE (length) = len_type;
2909 8386 : TREE_READONLY (length) = 1;
2910 8386 : gfc_finish_decl (length);
2911 :
2912 : /* Marking the length DECL_HIDDEN_STRING_LENGTH will lead
2913 : to tail calls being disabled. Only do that if we
2914 : potentially have broken callers. */
2915 8386 : if (flag_tail_call_workaround
2916 8386 : && f->sym->ts.u.cl
2917 7854 : && f->sym->ts.u.cl->length
2918 2683 : && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT
2919 2394 : && (flag_tail_call_workaround == 2
2920 2394 : || f->sym->ns->implicit_interface_calls))
2921 84 : DECL_HIDDEN_STRING_LENGTH (length) = 1;
2922 :
2923 : /* Remember the passed value. */
2924 8386 : if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length)
2925 : {
2926 : /* This can happen if the same type is used for multiple
2927 : arguments. We need to copy cl as otherwise
2928 : cl->passed_length gets overwritten. */
2929 634 : f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl);
2930 : }
2931 8386 : f->sym->ts.u.cl->passed_length = length;
2932 :
2933 : /* Use the passed value for assumed length variables. */
2934 8386 : if (!f->sym->ts.u.cl->length)
2935 : {
2936 5703 : TREE_USED (length) = 1;
2937 5703 : gcc_assert (!f->sym->ts.u.cl->backend_decl);
2938 5703 : f->sym->ts.u.cl->backend_decl = length;
2939 : }
2940 :
2941 8386 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2942 :
2943 8386 : if (f->sym->ts.u.cl->backend_decl == NULL
2944 8064 : || f->sym->ts.u.cl->backend_decl == length)
2945 : {
2946 6025 : if (POINTER_TYPE_P (len_type))
2947 768 : f->sym->ts.u.cl->backend_decl
2948 768 : = build_fold_indirect_ref_loc (input_location, length);
2949 5257 : else if (f->sym->ts.u.cl->backend_decl == NULL)
2950 322 : gfc_create_string_length (f->sym);
2951 :
2952 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2953 6025 : if (f->sym->attr.flavor == FL_PROCEDURE)
2954 14 : type = build_pointer_type (gfc_get_function_type (f->sym));
2955 : else
2956 6011 : type = gfc_sym_type (f->sym);
2957 : }
2958 : }
2959 : /* For scalar intrinsic types or derived types, VALUE passes the value,
2960 : hence, the optional status cannot be transferred via a NULL pointer.
2961 : Thus, we will use a hidden argument in that case. */
2962 107139 : if (f->sym->attr.optional && f->sym->attr.value
2963 560 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2964 : {
2965 524 : tree tmp;
2966 524 : strcpy (&name[1], f->sym->name);
2967 524 : name[0] = '.';
2968 524 : tmp = build_decl (input_location,
2969 : PARM_DECL, get_identifier (name),
2970 : boolean_type_node);
2971 :
2972 524 : optval_arglist = chainon (optval_arglist, tmp);
2973 524 : DECL_CONTEXT (tmp) = fndecl;
2974 524 : DECL_ARTIFICIAL (tmp) = 1;
2975 524 : DECL_ARG_TYPE (tmp) = boolean_type_node;
2976 524 : TREE_READONLY (tmp) = 1;
2977 524 : gfc_finish_decl (tmp);
2978 :
2979 : /* The presence flag must be boolean. */
2980 524 : gcc_assert (TREE_VALUE (optval_typelist) == boolean_type_node);
2981 524 : optval_typelist = TREE_CHAIN (optval_typelist);
2982 : }
2983 :
2984 : /* For non-constant length array arguments, make sure they use
2985 : a different type node from TYPE_ARG_TYPES type. */
2986 107139 : if (f->sym->attr.dimension
2987 23659 : && type == TREE_VALUE (typelist)
2988 22317 : && TREE_CODE (type) == POINTER_TYPE
2989 9969 : && GFC_ARRAY_TYPE_P (type)
2990 8072 : && f->sym->as->type != AS_ASSUMED_SIZE
2991 113383 : && ! COMPLETE_TYPE_P (TREE_TYPE (type)))
2992 : {
2993 2642 : if (f->sym->attr.flavor == FL_PROCEDURE)
2994 0 : type = build_pointer_type (gfc_get_function_type (f->sym));
2995 : else
2996 2642 : type = gfc_sym_type (f->sym);
2997 : }
2998 :
2999 107139 : if (f->sym->attr.proc_pointer)
3000 152 : type = build_pointer_type (type);
3001 :
3002 107139 : if (f->sym->attr.volatile_)
3003 5 : type = build_qualified_type (type, TYPE_QUAL_VOLATILE);
3004 :
3005 : /* Build the argument declaration. For C descriptors, we use a
3006 : '_'-prefixed name for the parm_decl and inside the proc the
3007 : sym->name. */
3008 107139 : tree parm_name;
3009 107139 : if (sym->attr.is_bind_c && is_CFI_desc (f->sym, NULL))
3010 : {
3011 1820 : strcpy (&name[1], f->sym->name);
3012 1820 : name[0] = '_';
3013 1820 : parm_name = get_identifier (name);
3014 : }
3015 : else
3016 105319 : parm_name = gfc_sym_identifier (f->sym);
3017 107139 : parm = build_decl (input_location, PARM_DECL, parm_name, type);
3018 :
3019 107139 : if (f->sym->attr.volatile_)
3020 : {
3021 5 : TREE_THIS_VOLATILE (parm) = 1;
3022 5 : TREE_SIDE_EFFECTS (parm) = 1;
3023 : }
3024 :
3025 : /* Fill in arg stuff. */
3026 107139 : DECL_CONTEXT (parm) = fndecl;
3027 107139 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
3028 : /* All implementation args except for VALUE are read-only. */
3029 107139 : if (!f->sym->attr.value)
3030 97633 : TREE_READONLY (parm) = 1;
3031 107139 : if (POINTER_TYPE_P (type)
3032 98464 : && (!f->sym->attr.proc_pointer
3033 98312 : && f->sym->attr.flavor != FL_PROCEDURE))
3034 97517 : DECL_BY_REFERENCE (parm) = 1;
3035 107139 : if (f->sym->attr.optional)
3036 : {
3037 6240 : gfc_allocate_lang_decl (parm);
3038 6240 : GFC_DECL_OPTIONAL_ARGUMENT (parm) = 1;
3039 : }
3040 :
3041 107139 : gfc_finish_decl (parm);
3042 107139 : gfc_finish_decl_attrs (parm, &f->sym->attr);
3043 :
3044 107139 : f->sym->backend_decl = parm;
3045 :
3046 : /* Coarrays which are descriptorless or assumed-shape pass with
3047 : -fcoarray=lib the token and the offset as hidden arguments. */
3048 107139 : if (flag_coarray == GFC_FCOARRAY_LIB
3049 7223 : && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension
3050 1604 : && !f->sym->attr.allocatable)
3051 5641 : || (f->sym->ts.type == BT_CLASS
3052 27 : && CLASS_DATA (f->sym)->attr.codimension
3053 22 : && !CLASS_DATA (f->sym)->attr.allocatable)))
3054 : {
3055 1600 : tree caf_type;
3056 1600 : tree token;
3057 1600 : tree offset;
3058 :
3059 1600 : gcc_assert (f->sym->backend_decl != NULL_TREE
3060 : && !sym->attr.is_bind_c);
3061 1600 : caf_type = f->sym->ts.type == BT_CLASS
3062 1600 : ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl)
3063 1582 : : TREE_TYPE (f->sym->backend_decl);
3064 :
3065 1600 : token = build_decl (input_location, PARM_DECL,
3066 : create_tmp_var_name ("caf_token"),
3067 : build_qualified_type (pvoid_type_node,
3068 : TYPE_QUAL_RESTRICT));
3069 1600 : if ((f->sym->ts.type != BT_CLASS
3070 1582 : && f->sym->as->type != AS_DEFERRED)
3071 18 : || (f->sym->ts.type == BT_CLASS
3072 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3073 : {
3074 1600 : gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL
3075 : || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE);
3076 1600 : if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL)
3077 1595 : gfc_allocate_lang_decl (f->sym->backend_decl);
3078 1600 : GFC_DECL_TOKEN (f->sym->backend_decl) = token;
3079 : }
3080 : else
3081 : {
3082 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE);
3083 0 : GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token;
3084 : }
3085 :
3086 1600 : DECL_CONTEXT (token) = fndecl;
3087 1600 : DECL_ARTIFICIAL (token) = 1;
3088 1600 : DECL_ARG_TYPE (token) = TREE_VALUE (typelist);
3089 1600 : TREE_READONLY (token) = 1;
3090 1600 : hidden_arglist = chainon (hidden_arglist, token);
3091 1600 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3092 1600 : gfc_finish_decl (token);
3093 :
3094 1600 : offset = build_decl (input_location, PARM_DECL,
3095 : create_tmp_var_name ("caf_offset"),
3096 : gfc_array_index_type);
3097 :
3098 1600 : if ((f->sym->ts.type != BT_CLASS
3099 1582 : && f->sym->as->type != AS_DEFERRED)
3100 18 : || (f->sym->ts.type == BT_CLASS
3101 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3102 : {
3103 1600 : gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl)
3104 : == NULL_TREE);
3105 1600 : GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset;
3106 : }
3107 : else
3108 : {
3109 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE);
3110 0 : GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset;
3111 : }
3112 1600 : DECL_CONTEXT (offset) = fndecl;
3113 1600 : DECL_ARTIFICIAL (offset) = 1;
3114 1600 : DECL_ARG_TYPE (offset) = TREE_VALUE (typelist);
3115 1600 : TREE_READONLY (offset) = 1;
3116 1600 : hidden_arglist = chainon (hidden_arglist, offset);
3117 1600 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3118 1600 : gfc_finish_decl (offset);
3119 : }
3120 :
3121 107139 : arglist = chainon (arglist, parm);
3122 107139 : typelist = TREE_CHAIN (typelist);
3123 : }
3124 :
3125 : /* Add hidden present status for optional+value arguments. */
3126 90835 : arglist = chainon (arglist, optval_arglist);
3127 :
3128 : /* Add the hidden string length parameters, unless the procedure
3129 : is bind(C). */
3130 90835 : if (!sym->attr.is_bind_c)
3131 88642 : arglist = chainon (arglist, hidden_arglist);
3132 :
3133 181670 : gcc_assert (hidden_typelist == NULL_TREE
3134 : || TREE_VALUE (hidden_typelist) == void_type_node);
3135 90835 : DECL_ARGUMENTS (fndecl) = arglist;
3136 90835 : }
3137 :
3138 : /* Do the setup necessary before generating the body of a function. */
3139 :
3140 : static void
3141 88963 : trans_function_start (gfc_symbol * sym)
3142 : {
3143 88963 : tree fndecl;
3144 :
3145 88963 : fndecl = sym->backend_decl;
3146 :
3147 : /* Let GCC know the current scope is this function. */
3148 88963 : current_function_decl = fndecl;
3149 :
3150 : /* Let the world know what we're about to do. */
3151 88963 : announce_function (fndecl);
3152 :
3153 88963 : if (DECL_FILE_SCOPE_P (fndecl))
3154 : {
3155 : /* Create RTL for function declaration. */
3156 38380 : rest_of_decl_compilation (fndecl, 1, 0);
3157 : }
3158 :
3159 : /* Create RTL for function definition. */
3160 88963 : make_decl_rtl (fndecl);
3161 :
3162 88963 : allocate_struct_function (fndecl, false);
3163 :
3164 : /* function.cc requires a push at the start of the function. */
3165 88963 : pushlevel ();
3166 88963 : }
3167 :
3168 : /* Create thunks for alternate entry points. */
3169 :
3170 : static void
3171 667 : build_entry_thunks (gfc_namespace * ns, bool global)
3172 : {
3173 667 : gfc_formal_arglist *formal;
3174 667 : gfc_formal_arglist *thunk_formal;
3175 667 : gfc_entry_list *el;
3176 667 : gfc_symbol *thunk_sym;
3177 667 : stmtblock_t body;
3178 667 : tree thunk_fndecl;
3179 667 : tree tmp;
3180 667 : location_t old_loc;
3181 :
3182 : /* This should always be a toplevel function. */
3183 667 : gcc_assert (current_function_decl == NULL_TREE);
3184 :
3185 667 : old_loc = input_location;
3186 2079 : for (el = ns->entries; el; el = el->next)
3187 : {
3188 1412 : vec<tree, va_gc> *args = NULL;
3189 1412 : vec<tree, va_gc> *string_args = NULL;
3190 :
3191 1412 : thunk_sym = el->sym;
3192 :
3193 1412 : build_function_decl (thunk_sym, global);
3194 1412 : create_function_arglist (thunk_sym);
3195 :
3196 1412 : trans_function_start (thunk_sym);
3197 :
3198 1412 : thunk_fndecl = thunk_sym->backend_decl;
3199 :
3200 1412 : gfc_init_block (&body);
3201 :
3202 : /* Pass extra parameter identifying this entry point. */
3203 1412 : tmp = build_int_cst (gfc_array_index_type, el->id);
3204 1412 : vec_safe_push (args, tmp);
3205 :
3206 : /* When the master returns by reference, pass the result reference
3207 : and (for CHARACTER) the string length to the master call. If the
3208 : thunk itself also returns by reference these are forwarded from
3209 : its own argument list; otherwise (bind(c) CHARACTER entry) we
3210 : create local temporaries and load the value after the call. */
3211 1412 : tree result_ref = NULL_TREE;
3212 1412 : if (thunk_sym->attr.function
3213 1412 : && gfc_return_by_reference (ns->proc_name))
3214 : {
3215 300 : if (gfc_return_by_reference (thunk_sym))
3216 : {
3217 276 : tree ref = DECL_ARGUMENTS (current_function_decl);
3218 276 : vec_safe_push (args, ref);
3219 276 : if (ns->proc_name->ts.type == BT_CHARACTER)
3220 160 : vec_safe_push (args, DECL_CHAIN (ref));
3221 : }
3222 : else
3223 : {
3224 : /* The thunk is bind(c) and returns CHARACTER by value, but
3225 : the master returns by reference. Create a local buffer
3226 : and length to pass to the master call. */
3227 24 : tree chartype = gfc_get_char_type (thunk_sym->ts.kind);
3228 24 : tree len;
3229 :
3230 24 : if (thunk_sym->ts.u.cl && thunk_sym->ts.u.cl->length)
3231 : {
3232 24 : gfc_se se;
3233 24 : gfc_init_se (&se, NULL);
3234 24 : gfc_conv_expr (&se, thunk_sym->ts.u.cl->length);
3235 24 : gfc_add_block_to_block (&body, &se.pre);
3236 24 : len = se.expr;
3237 24 : gfc_add_block_to_block (&body, &se.post);
3238 24 : }
3239 : else
3240 0 : len = build_int_cst (gfc_charlen_type_node, 1);
3241 :
3242 24 : result_ref = build_decl (input_location, VAR_DECL,
3243 : get_identifier ("__entry_result"),
3244 : build_array_type (chartype,
3245 : build_range_type (gfc_array_index_type,
3246 : gfc_index_one_node,
3247 : fold_convert (gfc_array_index_type,
3248 : len))));
3249 24 : DECL_ARTIFICIAL (result_ref) = 1;
3250 24 : TREE_USED (result_ref) = 1;
3251 24 : DECL_CONTEXT (result_ref) = current_function_decl;
3252 24 : layout_decl (result_ref, 0);
3253 24 : pushdecl (result_ref);
3254 :
3255 48 : vec_safe_push (args,
3256 24 : build_fold_addr_expr_loc (input_location,
3257 : result_ref));
3258 24 : vec_safe_push (args, len);
3259 : }
3260 : }
3261 :
3262 2977 : for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal;
3263 1565 : formal = formal->next)
3264 : {
3265 : /* Ignore alternate returns. */
3266 1565 : if (formal->sym == NULL)
3267 36 : continue;
3268 :
3269 : /* We don't have a clever way of identifying arguments, so resort to
3270 : a brute-force search. */
3271 1529 : for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym);
3272 2697 : thunk_formal;
3273 1168 : thunk_formal = thunk_formal->next)
3274 : {
3275 2257 : if (thunk_formal->sym == formal->sym)
3276 : break;
3277 : }
3278 :
3279 1529 : if (thunk_formal)
3280 : {
3281 : /* Pass the argument. */
3282 1089 : DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1;
3283 1089 : vec_safe_push (args, thunk_formal->sym->backend_decl);
3284 1089 : if (formal->sym->ts.type == BT_CHARACTER)
3285 : {
3286 94 : tmp = thunk_formal->sym->ts.u.cl->backend_decl;
3287 94 : vec_safe_push (string_args, tmp);
3288 : }
3289 : }
3290 : else
3291 : {
3292 : /* Pass NULL for a missing argument. */
3293 440 : vec_safe_push (args, null_pointer_node);
3294 440 : if (formal->sym->ts.type == BT_CHARACTER)
3295 : {
3296 38 : tmp = build_int_cst (gfc_charlen_type_node, 0);
3297 38 : vec_safe_push (string_args, tmp);
3298 : }
3299 : }
3300 : }
3301 :
3302 : /* Call the master function. */
3303 1412 : vec_safe_splice (args, string_args);
3304 1412 : tmp = ns->proc_name->backend_decl;
3305 1412 : tmp = build_call_expr_loc_vec (input_location, tmp, args);
3306 1412 : if (result_ref != NULL_TREE)
3307 : {
3308 : /* The master returns by reference (void) but the bind(c) thunk
3309 : returns CHARACTER by value. Execute the master call, then
3310 : load the first character from the local buffer. */
3311 24 : gfc_add_expr_to_block (&body, tmp);
3312 24 : tmp = build4_loc (input_location, ARRAY_REF,
3313 24 : TREE_TYPE (TREE_TYPE (result_ref)),
3314 : result_ref, gfc_index_one_node,
3315 : NULL_TREE, NULL_TREE);
3316 24 : tmp = fold_convert (TREE_TYPE (DECL_RESULT (current_function_decl)),
3317 : tmp);
3318 24 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3319 24 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3320 24 : DECL_RESULT (current_function_decl), tmp);
3321 24 : tmp = build1_v (RETURN_EXPR, tmp);
3322 : }
3323 1388 : else if (ns->proc_name->attr.mixed_entry_master)
3324 : {
3325 214 : tree union_decl, field;
3326 214 : tree master_type = TREE_TYPE (ns->proc_name->backend_decl);
3327 :
3328 214 : union_decl = build_decl (input_location,
3329 : VAR_DECL, get_identifier ("__result"),
3330 214 : TREE_TYPE (master_type));
3331 214 : DECL_ARTIFICIAL (union_decl) = 1;
3332 214 : DECL_EXTERNAL (union_decl) = 0;
3333 214 : TREE_PUBLIC (union_decl) = 0;
3334 214 : TREE_USED (union_decl) = 1;
3335 214 : layout_decl (union_decl, 0);
3336 214 : pushdecl (union_decl);
3337 :
3338 214 : DECL_CONTEXT (union_decl) = current_function_decl;
3339 214 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3340 214 : TREE_TYPE (union_decl), union_decl, tmp);
3341 214 : gfc_add_expr_to_block (&body, tmp);
3342 :
3343 214 : for (field = TYPE_FIELDS (TREE_TYPE (union_decl));
3344 348 : field; field = DECL_CHAIN (field))
3345 348 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3346 348 : thunk_sym->result->name) == 0)
3347 : break;
3348 0 : gcc_assert (field != NULL_TREE);
3349 214 : tmp = fold_build3_loc (input_location, COMPONENT_REF,
3350 214 : TREE_TYPE (field), union_decl, field,
3351 : NULL_TREE);
3352 214 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3353 214 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3354 214 : DECL_RESULT (current_function_decl), tmp);
3355 214 : tmp = build1_v (RETURN_EXPR, tmp);
3356 : }
3357 1174 : else if (TREE_TYPE (DECL_RESULT (current_function_decl))
3358 1174 : != void_type_node)
3359 : {
3360 705 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3361 705 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3362 705 : DECL_RESULT (current_function_decl), tmp);
3363 705 : tmp = build1_v (RETURN_EXPR, tmp);
3364 : }
3365 1412 : gfc_add_expr_to_block (&body, tmp);
3366 :
3367 : /* Finish off this function and send it for code generation. */
3368 1412 : DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body);
3369 1412 : tmp = getdecls ();
3370 1412 : poplevel (1, 1);
3371 1412 : BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl;
3372 2824 : DECL_SAVED_TREE (thunk_fndecl)
3373 2824 : = fold_build3_loc (DECL_SOURCE_LOCATION (thunk_fndecl), BIND_EXPR,
3374 1412 : void_type_node, tmp, DECL_SAVED_TREE (thunk_fndecl),
3375 1412 : DECL_INITIAL (thunk_fndecl));
3376 :
3377 : /* Output the GENERIC tree. */
3378 1412 : dump_function (TDI_original, thunk_fndecl);
3379 :
3380 : /* Store the end of the function, so that we get good line number
3381 : info for the epilogue. */
3382 1412 : cfun->function_end_locus = input_location;
3383 :
3384 : /* We're leaving the context of this function, so zap cfun.
3385 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
3386 : tree_rest_of_compilation. */
3387 1412 : set_cfun (NULL);
3388 :
3389 1412 : current_function_decl = NULL_TREE;
3390 :
3391 1412 : cgraph_node::finalize_function (thunk_fndecl, true);
3392 :
3393 : /* We share the symbols in the formal argument list with other entry
3394 : points and the master function. Clear them so that they are
3395 : recreated for each function. */
3396 2546 : for (formal = gfc_sym_get_dummy_args (thunk_sym); formal;
3397 1134 : formal = formal->next)
3398 1134 : if (formal->sym != NULL) /* Ignore alternate returns. */
3399 : {
3400 1089 : formal->sym->backend_decl = NULL_TREE;
3401 1089 : if (formal->sym->ts.type == BT_CHARACTER)
3402 94 : formal->sym->ts.u.cl->backend_decl = NULL_TREE;
3403 : }
3404 :
3405 1412 : if (thunk_sym->attr.function)
3406 : {
3407 1194 : if (thunk_sym->ts.type == BT_CHARACTER)
3408 186 : thunk_sym->ts.u.cl->backend_decl = NULL_TREE;
3409 1194 : if (thunk_sym->result->ts.type == BT_CHARACTER)
3410 186 : thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE;
3411 : }
3412 : }
3413 :
3414 667 : input_location = old_loc;
3415 667 : }
3416 :
3417 :
3418 : /* Create a decl for a function, and create any thunks for alternate entry
3419 : points. If global is true, generate the function in the global binding
3420 : level, otherwise in the current binding level (which can be global). */
3421 :
3422 : void
3423 87551 : gfc_create_function_decl (gfc_namespace * ns, bool global)
3424 : {
3425 : /* Create a declaration for the master function. */
3426 87551 : build_function_decl (ns->proc_name, global);
3427 :
3428 : /* Compile the entry thunks. */
3429 87551 : if (ns->entries)
3430 667 : build_entry_thunks (ns, global);
3431 :
3432 : /* Now create the read argument list. */
3433 87551 : create_function_arglist (ns->proc_name);
3434 :
3435 87551 : if (ns->omp_declare_simd)
3436 95 : gfc_trans_omp_declare_simd (ns);
3437 :
3438 : /* Handle 'declare variant' directives. The applicable directives might
3439 : be declared in a parent namespace, so this needs to be called even if
3440 : there are no local directives. */
3441 87551 : if (flag_openmp)
3442 8827 : gfc_trans_omp_declare_variant (ns, NULL);
3443 87551 : }
3444 :
3445 : /* Return the decl used to hold the function return value. If
3446 : parent_flag is set, the context is the parent_scope. */
3447 :
3448 : tree
3449 13144 : gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag)
3450 : {
3451 13144 : tree decl;
3452 13144 : tree length;
3453 13144 : tree this_fake_result_decl;
3454 13144 : tree this_function_decl;
3455 :
3456 13144 : char name[GFC_MAX_SYMBOL_LEN + 10];
3457 :
3458 13144 : if (parent_flag)
3459 : {
3460 173 : this_fake_result_decl = parent_fake_result_decl;
3461 173 : this_function_decl = DECL_CONTEXT (current_function_decl);
3462 : }
3463 : else
3464 : {
3465 12971 : this_fake_result_decl = current_fake_result_decl;
3466 12971 : this_function_decl = current_function_decl;
3467 : }
3468 :
3469 13144 : if (sym
3470 13094 : && sym->ns->proc_name->backend_decl == this_function_decl
3471 4999 : && sym->ns->proc_name->attr.entry_master
3472 2392 : && sym != sym->ns->proc_name)
3473 : {
3474 1480 : tree t = NULL, var;
3475 1480 : if (this_fake_result_decl != NULL)
3476 1452 : for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t))
3477 1071 : if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0)
3478 : break;
3479 958 : if (t)
3480 577 : return TREE_VALUE (t);
3481 903 : decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag);
3482 :
3483 903 : if (parent_flag)
3484 14 : this_fake_result_decl = parent_fake_result_decl;
3485 : else
3486 889 : this_fake_result_decl = current_fake_result_decl;
3487 :
3488 903 : if (decl && sym->ns->proc_name->attr.mixed_entry_master)
3489 : {
3490 214 : tree field;
3491 :
3492 214 : for (field = TYPE_FIELDS (TREE_TYPE (decl));
3493 348 : field; field = DECL_CHAIN (field))
3494 348 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3495 : sym->name) == 0)
3496 : break;
3497 :
3498 214 : gcc_assert (field != NULL_TREE);
3499 214 : decl = fold_build3_loc (input_location, COMPONENT_REF,
3500 214 : TREE_TYPE (field), decl, field, NULL_TREE);
3501 : }
3502 :
3503 903 : var = create_tmp_var_raw (TREE_TYPE (decl), sym->name);
3504 903 : if (parent_flag)
3505 14 : gfc_add_decl_to_parent_function (var);
3506 : else
3507 889 : gfc_add_decl_to_function (var);
3508 :
3509 903 : SET_DECL_VALUE_EXPR (var, decl);
3510 903 : DECL_HAS_VALUE_EXPR_P (var) = 1;
3511 903 : GFC_DECL_RESULT (var) = 1;
3512 :
3513 903 : TREE_CHAIN (this_fake_result_decl)
3514 903 : = tree_cons (get_identifier (sym->name), var,
3515 903 : TREE_CHAIN (this_fake_result_decl));
3516 903 : return var;
3517 : }
3518 :
3519 11664 : if (this_fake_result_decl != NULL_TREE)
3520 4028 : return TREE_VALUE (this_fake_result_decl);
3521 :
3522 : /* Only when gfc_get_fake_result_decl is called by gfc_trans_return,
3523 : sym is NULL. */
3524 7636 : if (!sym)
3525 : return NULL_TREE;
3526 :
3527 7636 : if (sym->ts.type == BT_CHARACTER)
3528 : {
3529 864 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
3530 0 : length = gfc_create_string_length (sym);
3531 : else
3532 : length = sym->ts.u.cl->backend_decl;
3533 864 : if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE)
3534 520 : gfc_add_decl_to_function (length);
3535 : }
3536 :
3537 7636 : if (gfc_return_by_reference (sym))
3538 : {
3539 1625 : decl = DECL_ARGUMENTS (this_function_decl);
3540 :
3541 1625 : if (sym->ns->proc_name->backend_decl == this_function_decl
3542 411 : && sym->ns->proc_name->attr.entry_master)
3543 85 : decl = DECL_CHAIN (decl);
3544 :
3545 1625 : TREE_USED (decl) = 1;
3546 1625 : if (sym->as)
3547 807 : decl = gfc_build_dummy_array_decl (sym, decl);
3548 : }
3549 : else
3550 : {
3551 12022 : sprintf (name, "__result_%.20s",
3552 6011 : IDENTIFIER_POINTER (DECL_NAME (this_function_decl)));
3553 :
3554 6011 : if (!sym->attr.mixed_entry_master && sym->attr.function)
3555 5870 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3556 : VAR_DECL, get_identifier (name),
3557 : gfc_sym_type (sym));
3558 : else
3559 141 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3560 : VAR_DECL, get_identifier (name),
3561 141 : TREE_TYPE (TREE_TYPE (this_function_decl)));
3562 6011 : DECL_ARTIFICIAL (decl) = 1;
3563 6011 : DECL_EXTERNAL (decl) = 0;
3564 6011 : TREE_PUBLIC (decl) = 0;
3565 6011 : TREE_USED (decl) = 1;
3566 6011 : GFC_DECL_RESULT (decl) = 1;
3567 6011 : TREE_ADDRESSABLE (decl) = 1;
3568 :
3569 6011 : layout_decl (decl, 0);
3570 6011 : gfc_finish_decl_attrs (decl, &sym->attr);
3571 :
3572 6011 : if (parent_flag)
3573 27 : gfc_add_decl_to_parent_function (decl);
3574 : else
3575 5984 : gfc_add_decl_to_function (decl);
3576 : }
3577 :
3578 7636 : if (parent_flag)
3579 45 : parent_fake_result_decl = build_tree_list (NULL, decl);
3580 : else
3581 7591 : current_fake_result_decl = build_tree_list (NULL, decl);
3582 :
3583 7636 : if (sym->attr.assign)
3584 1 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl);
3585 :
3586 : return decl;
3587 : }
3588 :
3589 :
3590 : /* Builds a function decl. The remaining parameters are the types of the
3591 : function arguments. Negative nargs indicates a varargs function. */
3592 :
3593 : static tree
3594 4831824 : build_library_function_decl_1 (tree name, const char *spec,
3595 : tree rettype, int nargs, va_list p)
3596 : {
3597 4831824 : vec<tree, va_gc> *arglist;
3598 4831824 : tree fntype;
3599 4831824 : tree fndecl;
3600 4831824 : int n;
3601 :
3602 : /* Library functions must be declared with global scope. */
3603 4831824 : gcc_assert (current_function_decl == NULL_TREE);
3604 :
3605 : /* Create a list of the argument types. */
3606 4831824 : vec_alloc (arglist, abs (nargs));
3607 24053837 : for (n = abs (nargs); n > 0; n--)
3608 : {
3609 14390189 : tree argtype = va_arg (p, tree);
3610 14390189 : arglist->quick_push (argtype);
3611 : }
3612 :
3613 : /* Build the function type and decl. */
3614 4831824 : if (nargs >= 0)
3615 13848622 : fntype = build_function_type_vec (rettype, arglist);
3616 : else
3617 579600 : fntype = build_varargs_function_type_vec (rettype, arglist);
3618 4831824 : if (spec)
3619 : {
3620 2819925 : tree attr_args = build_tree_list (NULL_TREE,
3621 2819925 : build_string (strlen (spec), spec));
3622 2819925 : tree attrs = tree_cons (get_identifier ("fn spec"),
3623 2819925 : attr_args, TYPE_ATTRIBUTES (fntype));
3624 2819925 : fntype = build_type_attribute_variant (fntype, attrs);
3625 : }
3626 4831824 : fndecl = build_decl (input_location,
3627 : FUNCTION_DECL, name, fntype);
3628 :
3629 : /* Mark this decl as external. */
3630 4831824 : DECL_EXTERNAL (fndecl) = 1;
3631 4831824 : TREE_PUBLIC (fndecl) = 1;
3632 :
3633 4831824 : pushdecl (fndecl);
3634 :
3635 4831824 : rest_of_decl_compilation (fndecl, 1, 0);
3636 :
3637 4831824 : return fndecl;
3638 : }
3639 :
3640 : /* Builds a function decl. The remaining parameters are the types of the
3641 : function arguments. Negative nargs indicates a varargs function. */
3642 :
3643 : tree
3644 2011899 : gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...)
3645 : {
3646 2011899 : tree ret;
3647 2011899 : va_list args;
3648 2011899 : va_start (args, nargs);
3649 2011899 : ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args);
3650 2011899 : va_end (args);
3651 2011899 : return ret;
3652 : }
3653 :
3654 : /* Builds a function decl. The remaining parameters are the types of the
3655 : function arguments. Negative nargs indicates a varargs function.
3656 : The SPEC parameter specifies the function argument and return type
3657 : specification according to the fnspec function type attribute. */
3658 :
3659 : tree
3660 2819925 : gfc_build_library_function_decl_with_spec (tree name, const char *spec,
3661 : tree rettype, int nargs, ...)
3662 : {
3663 2819925 : tree ret;
3664 2819925 : va_list args;
3665 2819925 : va_start (args, nargs);
3666 2819925 : if (flag_checking)
3667 : {
3668 2819925 : attr_fnspec fnspec (spec, strlen (spec));
3669 2819925 : fnspec.verify ();
3670 : }
3671 2819925 : ret = build_library_function_decl_1 (name, spec, rettype, nargs, args);
3672 2819925 : va_end (args);
3673 2819925 : return ret;
3674 : }
3675 :
3676 : static void
3677 32200 : gfc_build_intrinsic_function_decls (void)
3678 : {
3679 32200 : tree gfc_int4_type_node = gfc_get_int_type (4);
3680 32200 : tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node);
3681 32200 : tree gfc_int8_type_node = gfc_get_int_type (8);
3682 32200 : tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node);
3683 32200 : tree gfc_int16_type_node = gfc_get_int_type (16);
3684 32200 : tree gfc_logical4_type_node = gfc_get_logical_type (4);
3685 32200 : tree pchar1_type_node = gfc_get_pchar_type (1);
3686 32200 : tree pchar4_type_node = gfc_get_pchar_type (4);
3687 :
3688 : /* String functions. */
3689 32200 : gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec (
3690 : get_identifier (PREFIX("compare_string")), ". . R . R ",
3691 : integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node,
3692 : gfc_charlen_type_node, pchar1_type_node);
3693 32200 : DECL_PURE_P (gfor_fndecl_compare_string) = 1;
3694 32200 : TREE_NOTHROW (gfor_fndecl_compare_string) = 1;
3695 :
3696 32200 : gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec (
3697 : get_identifier (PREFIX("concat_string")), ". . W . R . R ",
3698 : void_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3699 : gfc_charlen_type_node, pchar1_type_node,
3700 : gfc_charlen_type_node, pchar1_type_node);
3701 32200 : TREE_NOTHROW (gfor_fndecl_concat_string) = 1;
3702 :
3703 32200 : gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec (
3704 : get_identifier (PREFIX("string_len_trim")), ". . R ",
3705 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node);
3706 32200 : DECL_PURE_P (gfor_fndecl_string_len_trim) = 1;
3707 32200 : TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1;
3708 :
3709 32200 : gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec (
3710 : get_identifier (PREFIX("string_index")), ". . R . R . ",
3711 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3712 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3713 32200 : DECL_PURE_P (gfor_fndecl_string_index) = 1;
3714 32200 : TREE_NOTHROW (gfor_fndecl_string_index) = 1;
3715 :
3716 32200 : gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec (
3717 : get_identifier (PREFIX("string_scan")), ". . R . R . ",
3718 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3719 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3720 32200 : DECL_PURE_P (gfor_fndecl_string_scan) = 1;
3721 32200 : TREE_NOTHROW (gfor_fndecl_string_scan) = 1;
3722 :
3723 32200 : gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec (
3724 : get_identifier (PREFIX("string_verify")), ". . R . R . ",
3725 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3726 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3727 32200 : DECL_PURE_P (gfor_fndecl_string_verify) = 1;
3728 32200 : TREE_NOTHROW (gfor_fndecl_string_verify) = 1;
3729 :
3730 32200 : gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec (
3731 : get_identifier (PREFIX("string_trim")), ". W w . R ",
3732 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3733 : build_pointer_type (pchar1_type_node), gfc_charlen_type_node,
3734 : pchar1_type_node);
3735 :
3736 32200 : gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec (
3737 : get_identifier (PREFIX("string_minmax")), ". W w . R ",
3738 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3739 : build_pointer_type (pchar1_type_node), integer_type_node,
3740 : integer_type_node);
3741 :
3742 32200 : gfor_fndecl_string_split = gfc_build_library_function_decl_with_spec (
3743 : get_identifier (PREFIX ("string_split")), ". . R . R . . ",
3744 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3745 : gfc_charlen_type_node, pchar1_type_node, gfc_charlen_type_node,
3746 : gfc_logical4_type_node);
3747 :
3748 32200 : {
3749 32200 : tree copy_helper_ptr_type;
3750 32200 : tree copy_helper_fn_type;
3751 :
3752 32200 : copy_helper_fn_type = build_function_type_list (void_type_node,
3753 : pvoid_type_node,
3754 : pvoid_type_node,
3755 : NULL_TREE);
3756 32200 : copy_helper_ptr_type = build_pointer_type (copy_helper_fn_type);
3757 :
3758 32200 : gfor_fndecl_cfi_deep_copy_array
3759 32200 : = gfc_build_library_function_decl_with_spec (
3760 : get_identifier (PREFIX ("cfi_deep_copy_array")), ". R R . ",
3761 : void_type_node, 3, pvoid_type_node, pvoid_type_node,
3762 : copy_helper_ptr_type);
3763 : }
3764 :
3765 32200 : gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec (
3766 : get_identifier (PREFIX("adjustl")), ". W . R ",
3767 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3768 : pchar1_type_node);
3769 32200 : TREE_NOTHROW (gfor_fndecl_adjustl) = 1;
3770 :
3771 32200 : gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec (
3772 : get_identifier (PREFIX("adjustr")), ". W . R ",
3773 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3774 : pchar1_type_node);
3775 32200 : TREE_NOTHROW (gfor_fndecl_adjustr) = 1;
3776 :
3777 32200 : gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec (
3778 : get_identifier (PREFIX("select_string")), ". R . R . ",
3779 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3780 : pchar1_type_node, gfc_charlen_type_node);
3781 32200 : DECL_PURE_P (gfor_fndecl_select_string) = 1;
3782 32200 : TREE_NOTHROW (gfor_fndecl_select_string) = 1;
3783 :
3784 32200 : gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec (
3785 : get_identifier (PREFIX("compare_string_char4")), ". . R . R ",
3786 : integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node,
3787 : gfc_charlen_type_node, pchar4_type_node);
3788 32200 : DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1;
3789 32200 : TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1;
3790 :
3791 32200 : gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec (
3792 : get_identifier (PREFIX("concat_string_char4")), ". . W . R . R ",
3793 : void_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3794 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3795 : pchar4_type_node);
3796 32200 : TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1;
3797 :
3798 32200 : gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec (
3799 : get_identifier (PREFIX("string_len_trim_char4")), ". . R ",
3800 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node);
3801 32200 : DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1;
3802 32200 : TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1;
3803 :
3804 32200 : gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec (
3805 : get_identifier (PREFIX("string_index_char4")), ". . R . R . ",
3806 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3807 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3808 32200 : DECL_PURE_P (gfor_fndecl_string_index_char4) = 1;
3809 32200 : TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1;
3810 :
3811 32200 : gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec (
3812 : get_identifier (PREFIX("string_scan_char4")), ". . R . R . ",
3813 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3814 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3815 32200 : DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1;
3816 32200 : TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1;
3817 :
3818 32200 : gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec (
3819 : get_identifier (PREFIX("string_verify_char4")), ". . R . R . ",
3820 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3821 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3822 32200 : DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1;
3823 32200 : TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1;
3824 :
3825 32200 : gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec (
3826 : get_identifier (PREFIX("string_trim_char4")), ". W w . R ",
3827 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3828 : build_pointer_type (pchar4_type_node), gfc_charlen_type_node,
3829 : pchar4_type_node);
3830 :
3831 32200 : gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec (
3832 : get_identifier (PREFIX("string_minmax_char4")), ". W w . R ",
3833 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3834 : build_pointer_type (pchar4_type_node), integer_type_node,
3835 : integer_type_node);
3836 :
3837 32200 : gfor_fndecl_string_split_char4 = gfc_build_library_function_decl_with_spec (
3838 : get_identifier (PREFIX ("string_split_char4")), ". . R . R . . ",
3839 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3840 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3841 : gfc_logical4_type_node);
3842 :
3843 32200 : gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec (
3844 : get_identifier (PREFIX("adjustl_char4")), ". W . R ",
3845 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3846 : pchar4_type_node);
3847 32200 : TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1;
3848 :
3849 32200 : gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec (
3850 : get_identifier (PREFIX("adjustr_char4")), ". W . R ",
3851 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3852 : pchar4_type_node);
3853 32200 : TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1;
3854 :
3855 32200 : gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec (
3856 : get_identifier (PREFIX("select_string_char4")), ". R . R . ",
3857 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3858 : pvoid_type_node, gfc_charlen_type_node);
3859 32200 : DECL_PURE_P (gfor_fndecl_select_string_char4) = 1;
3860 32200 : TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1;
3861 :
3862 :
3863 : /* Conversion between character kinds. */
3864 :
3865 32200 : gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec (
3866 : get_identifier (PREFIX("convert_char1_to_char4")), ". w . R ",
3867 : void_type_node, 3, build_pointer_type (pchar4_type_node),
3868 : gfc_charlen_type_node, pchar1_type_node);
3869 :
3870 32200 : gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec (
3871 : get_identifier (PREFIX("convert_char4_to_char1")), ". w . R ",
3872 : void_type_node, 3, build_pointer_type (pchar1_type_node),
3873 : gfc_charlen_type_node, pchar4_type_node);
3874 :
3875 : /* Misc. functions. */
3876 :
3877 32200 : gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec (
3878 : get_identifier (PREFIX("ttynam")), ". W . . ",
3879 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3880 : integer_type_node);
3881 :
3882 32200 : gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec (
3883 : get_identifier (PREFIX("fdate")), ". W . ",
3884 : void_type_node, 2, pchar_type_node, gfc_charlen_type_node);
3885 :
3886 32200 : gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec (
3887 : get_identifier (PREFIX("ctime")), ". W . . ",
3888 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3889 : gfc_int8_type_node);
3890 :
3891 32200 : gfor_fndecl_random_init = gfc_build_library_function_decl (
3892 : get_identifier (PREFIX("random_init")),
3893 : void_type_node, 3, gfc_logical4_type_node, gfc_logical4_type_node,
3894 : gfc_int4_type_node);
3895 :
3896 : // gfor_fndecl_caf_rand_init is defined in the lib-coarray section below.
3897 :
3898 32200 : gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec (
3899 : get_identifier (PREFIX("selected_char_kind")), ". . R ",
3900 : gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node);
3901 32200 : DECL_PURE_P (gfor_fndecl_sc_kind) = 1;
3902 32200 : TREE_NOTHROW (gfor_fndecl_sc_kind) = 1;
3903 :
3904 32200 : gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec (
3905 : get_identifier (PREFIX("selected_int_kind")), ". R ",
3906 : gfc_int4_type_node, 1, pvoid_type_node);
3907 32200 : DECL_PURE_P (gfor_fndecl_si_kind) = 1;
3908 32200 : TREE_NOTHROW (gfor_fndecl_si_kind) = 1;
3909 :
3910 32200 : gfor_fndecl_sl_kind = gfc_build_library_function_decl_with_spec (
3911 : get_identifier (PREFIX("selected_logical_kind")), ". R ",
3912 : gfc_int4_type_node, 1, pvoid_type_node);
3913 32200 : DECL_PURE_P (gfor_fndecl_sl_kind) = 1;
3914 32200 : TREE_NOTHROW (gfor_fndecl_sl_kind) = 1;
3915 :
3916 32200 : gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec (
3917 : get_identifier (PREFIX("selected_real_kind2008")), ". R R ",
3918 : gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node,
3919 : pvoid_type_node);
3920 32200 : DECL_PURE_P (gfor_fndecl_sr_kind) = 1;
3921 32200 : TREE_NOTHROW (gfor_fndecl_sr_kind) = 1;
3922 :
3923 32200 : gfor_fndecl_system_clock4 = gfc_build_library_function_decl (
3924 : get_identifier (PREFIX("system_clock_4")),
3925 : void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node,
3926 : gfc_pint4_type_node);
3927 :
3928 32200 : gfor_fndecl_system_clock8 = gfc_build_library_function_decl (
3929 : get_identifier (PREFIX("system_clock_8")),
3930 : void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node,
3931 : gfc_pint8_type_node);
3932 :
3933 : /* Power functions. */
3934 32200 : {
3935 32200 : tree ctype, rtype, itype, jtype;
3936 32200 : int rkind, ikind, jkind;
3937 : #define NIKINDS 3
3938 : #define NRKINDS 4
3939 : #define NUKINDS 5
3940 32200 : static const int ikinds[NIKINDS] = {4, 8, 16};
3941 32200 : static const int rkinds[NRKINDS] = {4, 8, 10, 16};
3942 32200 : static const int ukinds[NUKINDS] = {1, 2, 4, 8, 16};
3943 32200 : char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */
3944 :
3945 128800 : for (ikind=0; ikind < NIKINDS; ikind++)
3946 : {
3947 96600 : itype = gfc_get_int_type (ikinds[ikind]);
3948 :
3949 483000 : for (jkind=0; jkind < NIKINDS; jkind++)
3950 : {
3951 289800 : jtype = gfc_get_int_type (ikinds[jkind]);
3952 289800 : if (itype && jtype)
3953 : {
3954 287755 : sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind],
3955 : ikinds[jkind]);
3956 575510 : gfor_fndecl_math_powi[jkind][ikind].integer =
3957 287755 : gfc_build_library_function_decl (get_identifier (name),
3958 : jtype, 2, jtype, itype);
3959 287755 : TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3960 287755 : TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3961 : }
3962 : }
3963 :
3964 483000 : for (rkind = 0; rkind < NRKINDS; rkind ++)
3965 : {
3966 386400 : rtype = gfc_get_real_type (rkinds[rkind]);
3967 386400 : if (rtype && itype)
3968 : {
3969 384764 : sprintf (name, PREFIX("pow_r%d_i%d"),
3970 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3971 : ikinds[ikind]);
3972 769528 : gfor_fndecl_math_powi[rkind][ikind].real =
3973 384764 : gfc_build_library_function_decl (get_identifier (name),
3974 : rtype, 2, rtype, itype);
3975 384764 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
3976 384764 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
3977 : }
3978 :
3979 386400 : ctype = gfc_get_complex_type (rkinds[rkind]);
3980 386400 : if (ctype && itype)
3981 : {
3982 384764 : sprintf (name, PREFIX("pow_c%d_i%d"),
3983 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3984 : ikinds[ikind]);
3985 769528 : gfor_fndecl_math_powi[rkind][ikind].cmplx =
3986 384764 : gfc_build_library_function_decl (get_identifier (name),
3987 : ctype, 2,ctype, itype);
3988 384764 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
3989 384764 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
3990 : }
3991 : }
3992 : /* For unsigned types, we have every power for every type. */
3993 579600 : for (int base = 0; base < NUKINDS; base++)
3994 : {
3995 483000 : tree base_type = gfc_get_unsigned_type (ukinds[base]);
3996 3381000 : for (int expon = 0; expon < NUKINDS; expon++)
3997 : {
3998 2415000 : tree expon_type = gfc_get_unsigned_type (ukinds[base]);
3999 2415000 : if (base_type && expon_type)
4000 : {
4001 18375 : sprintf (name, PREFIX("pow_m%d_m%d"), ukinds[base],
4002 18375 : ukinds[expon]);
4003 36750 : gfor_fndecl_unsigned_pow_list [base][expon] =
4004 18375 : gfc_build_library_function_decl (get_identifier (name),
4005 : base_type, 2, base_type, expon_type);
4006 18375 : TREE_READONLY (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
4007 18375 : TREE_NOTHROW (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
4008 : }
4009 : }
4010 : }
4011 : }
4012 : #undef NIKINDS
4013 : #undef NRKINDS
4014 : #undef NUKINDS
4015 : }
4016 :
4017 32200 : gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl (
4018 : get_identifier (PREFIX("ishftc4")),
4019 : gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node,
4020 : gfc_int4_type_node);
4021 32200 : TREE_READONLY (gfor_fndecl_math_ishftc4) = 1;
4022 32200 : TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1;
4023 :
4024 32200 : gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl (
4025 : get_identifier (PREFIX("ishftc8")),
4026 : gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node,
4027 : gfc_int4_type_node);
4028 32200 : TREE_READONLY (gfor_fndecl_math_ishftc8) = 1;
4029 32200 : TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1;
4030 :
4031 32200 : if (gfc_int16_type_node)
4032 : {
4033 31791 : gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl (
4034 : get_identifier (PREFIX("ishftc16")),
4035 : gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node,
4036 : gfc_int4_type_node);
4037 31791 : TREE_READONLY (gfor_fndecl_math_ishftc16) = 1;
4038 31791 : TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1;
4039 : }
4040 :
4041 : /* BLAS functions. */
4042 32200 : {
4043 32200 : tree pint = build_pointer_type (integer_type_node);
4044 32200 : tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind));
4045 32200 : tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind));
4046 32200 : tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind));
4047 32200 : tree pz = build_pointer_type
4048 32200 : (gfc_get_complex_type (gfc_default_double_kind));
4049 :
4050 64400 : gfor_fndecl_sgemm = gfc_build_library_function_decl
4051 32979 : (get_identifier
4052 : (flag_underscoring ? "sgemm_" : "sgemm"),
4053 : void_type_node, 15, pchar_type_node,
4054 : pchar_type_node, pint, pint, pint, ps, ps, pint,
4055 : ps, pint, ps, ps, pint, integer_type_node,
4056 : integer_type_node);
4057 64400 : gfor_fndecl_dgemm = gfc_build_library_function_decl
4058 32979 : (get_identifier
4059 : (flag_underscoring ? "dgemm_" : "dgemm"),
4060 : void_type_node, 15, pchar_type_node,
4061 : pchar_type_node, pint, pint, pint, pd, pd, pint,
4062 : pd, pint, pd, pd, pint, integer_type_node,
4063 : integer_type_node);
4064 64400 : gfor_fndecl_cgemm = gfc_build_library_function_decl
4065 32979 : (get_identifier
4066 : (flag_underscoring ? "cgemm_" : "cgemm"),
4067 : void_type_node, 15, pchar_type_node,
4068 : pchar_type_node, pint, pint, pint, pc, pc, pint,
4069 : pc, pint, pc, pc, pint, integer_type_node,
4070 : integer_type_node);
4071 64400 : gfor_fndecl_zgemm = gfc_build_library_function_decl
4072 32979 : (get_identifier
4073 : (flag_underscoring ? "zgemm_" : "zgemm"),
4074 : void_type_node, 15, pchar_type_node,
4075 : pchar_type_node, pint, pint, pint, pz, pz, pint,
4076 : pz, pint, pz, pz, pint, integer_type_node,
4077 : integer_type_node);
4078 : }
4079 :
4080 : /* Other functions. */
4081 32200 : gfor_fndecl_iargc = gfc_build_library_function_decl (
4082 : get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0);
4083 32200 : TREE_NOTHROW (gfor_fndecl_iargc) = 1;
4084 :
4085 32200 : gfor_fndecl_kill_sub = gfc_build_library_function_decl (
4086 : get_identifier (PREFIX ("kill_sub")), void_type_node,
4087 : 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node);
4088 :
4089 32200 : gfor_fndecl_kill = gfc_build_library_function_decl (
4090 : get_identifier (PREFIX ("kill")), gfc_int4_type_node,
4091 : 2, gfc_int4_type_node, gfc_int4_type_node);
4092 :
4093 32200 : gfor_fndecl_is_contiguous0 = gfc_build_library_function_decl_with_spec (
4094 : get_identifier (PREFIX("is_contiguous0")), ". R ",
4095 : gfc_int4_type_node, 1, pvoid_type_node);
4096 32200 : DECL_PURE_P (gfor_fndecl_is_contiguous0) = 1;
4097 32200 : TREE_NOTHROW (gfor_fndecl_is_contiguous0) = 1;
4098 :
4099 32200 : gfor_fndecl_fstat_i4_sub = gfc_build_library_function_decl (
4100 : get_identifier (PREFIX ("fstat_i4_sub")), void_type_node,
4101 : 3, gfc_pint4_type_node, gfc_pint4_type_node, gfc_pint4_type_node);
4102 :
4103 32200 : gfor_fndecl_fstat_i8_sub = gfc_build_library_function_decl (
4104 : get_identifier (PREFIX ("fstat_i8_sub")), void_type_node,
4105 : 3, gfc_pint8_type_node, gfc_pint8_type_node, gfc_pint8_type_node);
4106 :
4107 32200 : gfor_fndecl_lstat_i4_sub = gfc_build_library_function_decl (
4108 : get_identifier (PREFIX ("lstat_i4_sub")), void_type_node,
4109 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
4110 : gfc_charlen_type_node);
4111 :
4112 32200 : gfor_fndecl_lstat_i8_sub = gfc_build_library_function_decl (
4113 : get_identifier (PREFIX ("lstat_i8_sub")), void_type_node,
4114 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
4115 : gfc_charlen_type_node);
4116 :
4117 32200 : gfor_fndecl_stat_i4_sub = gfc_build_library_function_decl (
4118 : get_identifier (PREFIX ("stat_i4_sub")), void_type_node,
4119 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
4120 : gfc_charlen_type_node);
4121 :
4122 32200 : gfor_fndecl_stat_i8_sub = gfc_build_library_function_decl (
4123 : get_identifier (PREFIX ("stat_i8_sub")), void_type_node,
4124 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
4125 : gfc_charlen_type_node);
4126 32200 : }
4127 :
4128 :
4129 : /* Make prototypes for runtime library functions. */
4130 :
4131 : void
4132 32200 : gfc_build_builtin_function_decls (void)
4133 : {
4134 32200 : tree gfc_int8_type_node = gfc_get_int_type (8);
4135 :
4136 32200 : gfor_fndecl_stop_numeric = gfc_build_library_function_decl (
4137 : get_identifier (PREFIX("stop_numeric")),
4138 : void_type_node, 2, integer_type_node, boolean_type_node);
4139 : /* STOP doesn't return. */
4140 32200 : TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1;
4141 :
4142 32200 : gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec (
4143 : get_identifier (PREFIX("stop_string")), ". R . . ",
4144 : void_type_node, 3, pchar_type_node, size_type_node,
4145 : boolean_type_node);
4146 : /* STOP doesn't return. */
4147 32200 : TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1;
4148 :
4149 32200 : gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl (
4150 : get_identifier (PREFIX("error_stop_numeric")),
4151 : void_type_node, 2, integer_type_node, boolean_type_node);
4152 : /* ERROR STOP doesn't return. */
4153 32200 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1;
4154 :
4155 32200 : gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec (
4156 : get_identifier (PREFIX("error_stop_string")), ". R . . ",
4157 : void_type_node, 3, pchar_type_node, size_type_node,
4158 : boolean_type_node);
4159 : /* ERROR STOP doesn't return. */
4160 32200 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1;
4161 :
4162 32200 : gfor_fndecl_pause_numeric = gfc_build_library_function_decl (
4163 : get_identifier (PREFIX("pause_numeric")),
4164 : void_type_node, 1, gfc_int8_type_node);
4165 :
4166 32200 : gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec (
4167 : get_identifier (PREFIX("pause_string")), ". R . ",
4168 : void_type_node, 2, pchar_type_node, size_type_node);
4169 :
4170 32200 : gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec (
4171 : get_identifier (PREFIX("runtime_error")), ". R ",
4172 : void_type_node, -1, pchar_type_node);
4173 : /* The runtime_error function does not return. */
4174 32200 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1;
4175 :
4176 32200 : gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec (
4177 : get_identifier (PREFIX("runtime_error_at")), ". R R ",
4178 : void_type_node, -2, pchar_type_node, pchar_type_node);
4179 : /* The runtime_error_at function does not return. */
4180 32200 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1;
4181 :
4182 32200 : gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec (
4183 : get_identifier (PREFIX("runtime_warning_at")), ". R R ",
4184 : void_type_node, -2, pchar_type_node, pchar_type_node);
4185 :
4186 32200 : gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec (
4187 : get_identifier (PREFIX("generate_error")), ". W . R ",
4188 : void_type_node, 3, pvoid_type_node, integer_type_node,
4189 : pchar_type_node);
4190 :
4191 32200 : gfor_fndecl_os_error_at = gfc_build_library_function_decl_with_spec (
4192 : get_identifier (PREFIX("os_error_at")), ". R R ",
4193 : void_type_node, -2, pchar_type_node, pchar_type_node);
4194 : /* The os_error_at function does not return. */
4195 32200 : TREE_THIS_VOLATILE (gfor_fndecl_os_error_at) = 1;
4196 :
4197 32200 : gfor_fndecl_set_args = gfc_build_library_function_decl (
4198 : get_identifier (PREFIX("set_args")),
4199 : void_type_node, 2, integer_type_node,
4200 : build_pointer_type (pchar_type_node));
4201 :
4202 32200 : gfor_fndecl_set_fpe = gfc_build_library_function_decl (
4203 : get_identifier (PREFIX("set_fpe")),
4204 : void_type_node, 1, integer_type_node);
4205 :
4206 32200 : gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl (
4207 : get_identifier (PREFIX("ieee_procedure_entry")),
4208 : void_type_node, 1, pvoid_type_node);
4209 :
4210 32200 : gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl (
4211 : get_identifier (PREFIX("ieee_procedure_exit")),
4212 : void_type_node, 1, pvoid_type_node);
4213 :
4214 : /* Keep the array dimension in sync with the call, later in this file. */
4215 32200 : gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec (
4216 : get_identifier (PREFIX("set_options")), ". . R ",
4217 : void_type_node, 2, integer_type_node,
4218 : build_pointer_type (integer_type_node));
4219 :
4220 32200 : gfor_fndecl_set_convert = gfc_build_library_function_decl (
4221 : get_identifier (PREFIX("set_convert")),
4222 : void_type_node, 1, integer_type_node);
4223 :
4224 32200 : gfor_fndecl_set_record_marker = gfc_build_library_function_decl (
4225 : get_identifier (PREFIX("set_record_marker")),
4226 : void_type_node, 1, integer_type_node);
4227 :
4228 32200 : gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl (
4229 : get_identifier (PREFIX("set_max_subrecord_length")),
4230 : void_type_node, 1, integer_type_node);
4231 :
4232 32200 : gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec (
4233 : get_identifier (PREFIX("internal_pack")), ". r ",
4234 : pvoid_type_node, 1, pvoid_type_node);
4235 :
4236 32200 : gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec (
4237 : get_identifier (PREFIX("internal_unpack")), ". w R ",
4238 : void_type_node, 2, pvoid_type_node, pvoid_type_node);
4239 :
4240 32200 : gfor_fndecl_in_pack_class = gfc_build_library_function_decl_with_spec (
4241 : get_identifier (PREFIX ("internal_pack_class")), ". w R r r ",
4242 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4243 : integer_type_node);
4244 :
4245 32200 : gfor_fndecl_in_unpack_class = gfc_build_library_function_decl_with_spec (
4246 : get_identifier (PREFIX ("internal_unpack_class")), ". w R r r ",
4247 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4248 : integer_type_node);
4249 :
4250 32200 : gfor_fndecl_associated = gfc_build_library_function_decl_with_spec (
4251 : get_identifier (PREFIX ("associated")), ". R R ", integer_type_node, 2,
4252 : ppvoid_type_node, ppvoid_type_node);
4253 32200 : DECL_PURE_P (gfor_fndecl_associated) = 1;
4254 32200 : TREE_NOTHROW (gfor_fndecl_associated) = 1;
4255 :
4256 : /* Coarray library calls. */
4257 32200 : if (flag_coarray == GFC_FCOARRAY_LIB)
4258 : {
4259 475 : tree pint_type, pppchar_type, psize_type;
4260 :
4261 475 : pint_type = build_pointer_type (integer_type_node);
4262 475 : pppchar_type
4263 475 : = build_pointer_type (build_pointer_type (pchar_type_node));
4264 475 : psize_type = build_pointer_type (size_type_node);
4265 :
4266 475 : gfor_fndecl_caf_init = gfc_build_library_function_decl_with_spec (
4267 : get_identifier (PREFIX("caf_init")), ". W W ",
4268 : void_type_node, 2, pint_type, pppchar_type);
4269 :
4270 475 : gfor_fndecl_caf_finalize = gfc_build_library_function_decl (
4271 : get_identifier (PREFIX("caf_finalize")), void_type_node, 0);
4272 :
4273 475 : gfor_fndecl_caf_this_image = gfc_build_library_function_decl_with_spec (
4274 : get_identifier (PREFIX ("caf_this_image")), ". r ", integer_type_node,
4275 : 1, pvoid_type_node);
4276 :
4277 475 : gfor_fndecl_caf_num_images = gfc_build_library_function_decl (
4278 : get_identifier (PREFIX("caf_num_images")), integer_type_node,
4279 : 2, integer_type_node, integer_type_node);
4280 :
4281 475 : gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec (
4282 : get_identifier (PREFIX("caf_register")), ". . . W w w w . ",
4283 : void_type_node, 7,
4284 : size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node,
4285 : pint_type, pchar_type_node, size_type_node);
4286 :
4287 475 : gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec (
4288 : get_identifier (PREFIX("caf_deregister")), ". W . w w . ",
4289 : void_type_node, 5,
4290 : ppvoid_type_node, integer_type_node, pint_type, pchar_type_node,
4291 : size_type_node);
4292 :
4293 475 : gfor_fndecl_caf_register_accessor
4294 475 : = gfc_build_library_function_decl_with_spec (
4295 : get_identifier (PREFIX ("caf_register_accessor")), ". r r ",
4296 : void_type_node, 2, integer_type_node, pvoid_type_node);
4297 :
4298 475 : gfor_fndecl_caf_register_accessors_finish
4299 475 : = gfc_build_library_function_decl_with_spec (
4300 : get_identifier (PREFIX ("caf_register_accessors_finish")), ". ",
4301 : void_type_node, 0);
4302 :
4303 475 : gfor_fndecl_caf_get_remote_function_index
4304 475 : = gfc_build_library_function_decl_with_spec (
4305 : get_identifier (PREFIX ("caf_get_remote_function_index")), ". r ",
4306 : integer_type_node, 1, integer_type_node);
4307 :
4308 475 : gfor_fndecl_caf_get_from_remote
4309 475 : = gfc_build_library_function_decl_with_spec (
4310 : get_identifier (PREFIX ("caf_get_from_remote")),
4311 : ". r r r r r w w w r r w r w r r ", void_type_node, 15,
4312 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4313 : size_type_node, ppvoid_type_node, psize_type, pvoid_type_node,
4314 : boolean_type_node, integer_type_node, pvoid_type_node, size_type_node,
4315 : pint_type, pvoid_type_node, pint_type);
4316 :
4317 475 : gfor_fndecl_caf_send_to_remote
4318 475 : = gfc_build_library_function_decl_with_spec (
4319 : get_identifier (PREFIX ("caf_send_to_remote")),
4320 : ". r r r r r r r r r w r w r r ", void_type_node, 14, pvoid_type_node,
4321 : pvoid_type_node, psize_type, integer_type_node, size_type_node,
4322 : ppvoid_type_node, psize_type, pvoid_type_node, integer_type_node,
4323 : pvoid_type_node, size_type_node, pint_type, pvoid_type_node,
4324 : pint_type);
4325 :
4326 475 : gfor_fndecl_caf_transfer_between_remotes
4327 475 : = gfc_build_library_function_decl_with_spec (
4328 : get_identifier (PREFIX ("caf_transfer_between_remotes")),
4329 : ". r r r r r r r r r r r r r r r r w w r r ", void_type_node, 20,
4330 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4331 : integer_type_node, pvoid_type_node, size_type_node, pvoid_type_node,
4332 : pvoid_type_node, psize_type, integer_type_node, integer_type_node,
4333 : pvoid_type_node, size_type_node, size_type_node, boolean_type_node,
4334 : pint_type, pint_type, pvoid_type_node, pint_type);
4335 :
4336 475 : gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec (
4337 : get_identifier (PREFIX ("caf_sync_all")), ". w w . ", void_type_node, 3,
4338 : pint_type, pchar_type_node, size_type_node);
4339 :
4340 475 : gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec (
4341 : get_identifier (PREFIX("caf_sync_memory")), ". w w . ", void_type_node,
4342 : 3, pint_type, pchar_type_node, size_type_node);
4343 :
4344 475 : gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec (
4345 : get_identifier (PREFIX("caf_sync_images")), ". . r w w . ", void_type_node,
4346 : 5, integer_type_node, pint_type, pint_type,
4347 : pchar_type_node, size_type_node);
4348 :
4349 475 : gfor_fndecl_caf_error_stop = gfc_build_library_function_decl (
4350 : get_identifier (PREFIX("caf_error_stop")),
4351 : void_type_node, 1, integer_type_node);
4352 : /* CAF's ERROR STOP doesn't return. */
4353 475 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1;
4354 :
4355 475 : gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec (
4356 : get_identifier (PREFIX("caf_error_stop_str")), ". r . ",
4357 : void_type_node, 2, pchar_type_node, size_type_node);
4358 : /* CAF's ERROR STOP doesn't return. */
4359 475 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1;
4360 :
4361 475 : gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl (
4362 : get_identifier (PREFIX("caf_stop_numeric")),
4363 : void_type_node, 1, integer_type_node);
4364 : /* CAF's STOP doesn't return. */
4365 475 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1;
4366 :
4367 475 : gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec (
4368 : get_identifier (PREFIX("caf_stop_str")), ". r . ",
4369 : void_type_node, 2, pchar_type_node, size_type_node);
4370 : /* CAF's STOP doesn't return. */
4371 475 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1;
4372 :
4373 475 : gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec (
4374 : get_identifier (PREFIX("caf_atomic_define")), ". r . . w w . . ",
4375 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4376 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4377 :
4378 475 : gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec (
4379 : get_identifier (PREFIX("caf_atomic_ref")), ". r . . w w . . ",
4380 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4381 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4382 :
4383 475 : gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec (
4384 : get_identifier (PREFIX("caf_atomic_cas")), ". r . . w r r w . . ",
4385 : void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node,
4386 : pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4387 : integer_type_node, integer_type_node);
4388 :
4389 475 : gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec (
4390 : get_identifier (PREFIX("caf_atomic_op")), ". . r . . r w w . . ",
4391 : void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node,
4392 : integer_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4393 : integer_type_node, integer_type_node);
4394 :
4395 475 : gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec (
4396 : get_identifier (PREFIX("caf_lock")), ". r . . w w w . ",
4397 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4398 : pint_type, pint_type, pchar_type_node, size_type_node);
4399 :
4400 475 : gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec (
4401 : get_identifier (PREFIX("caf_unlock")), ". r . . w w . ",
4402 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4403 : pint_type, pchar_type_node, size_type_node);
4404 :
4405 475 : gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec (
4406 : get_identifier (PREFIX("caf_event_post")), ". r . . w w . ",
4407 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4408 : pint_type, pchar_type_node, size_type_node);
4409 :
4410 475 : gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec (
4411 : get_identifier (PREFIX("caf_event_wait")), ". r . . w w . ",
4412 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4413 : pint_type, pchar_type_node, size_type_node);
4414 :
4415 475 : gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec (
4416 : get_identifier (PREFIX("caf_event_query")), ". r . . w w ",
4417 : void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node,
4418 : pint_type, pint_type);
4419 :
4420 475 : gfor_fndecl_caf_fail_image = gfc_build_library_function_decl (
4421 : get_identifier (PREFIX("caf_fail_image")), void_type_node, 0);
4422 : /* CAF's FAIL doesn't return. */
4423 475 : TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1;
4424 :
4425 475 : gfor_fndecl_caf_failed_images
4426 475 : = gfc_build_library_function_decl_with_spec (
4427 : get_identifier (PREFIX("caf_failed_images")), ". w . r ",
4428 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4429 : integer_type_node);
4430 :
4431 475 : gfor_fndecl_caf_form_team = gfc_build_library_function_decl_with_spec (
4432 : get_identifier (PREFIX ("caf_form_team")), ". r w r w w w ",
4433 : void_type_node, 6, integer_type_node, ppvoid_type_node, pint_type,
4434 : pint_type, pchar_type_node, size_type_node);
4435 :
4436 475 : gfor_fndecl_caf_change_team = gfc_build_library_function_decl_with_spec (
4437 : get_identifier (PREFIX ("caf_change_team")), ". r w w w ",
4438 : void_type_node, 4, pvoid_type_node, pint_type, pchar_type_node,
4439 : size_type_node);
4440 :
4441 475 : gfor_fndecl_caf_end_team = gfc_build_library_function_decl_with_spec (
4442 : get_identifier (PREFIX ("caf_end_team")), ". w w w ", void_type_node, 3,
4443 : pint_type, pchar_type_node, size_type_node);
4444 :
4445 475 : gfor_fndecl_caf_get_team = gfc_build_library_function_decl_with_spec (
4446 : get_identifier (PREFIX ("caf_get_team")), ". r ", pvoid_type_node, 1,
4447 : pint_type);
4448 :
4449 475 : gfor_fndecl_caf_sync_team = gfc_build_library_function_decl_with_spec (
4450 : get_identifier (PREFIX ("caf_sync_team")), ". r w w w ", void_type_node,
4451 : 4, pvoid_type_node, pint_type, pchar_type_node, size_type_node);
4452 :
4453 475 : gfor_fndecl_caf_team_number = gfc_build_library_function_decl_with_spec (
4454 : get_identifier (PREFIX ("caf_team_number")), ". r ", integer_type_node,
4455 : 1, pvoid_type_node);
4456 :
4457 475 : gfor_fndecl_caf_image_status = gfc_build_library_function_decl_with_spec (
4458 : get_identifier (PREFIX ("caf_image_status")), ". r r ",
4459 : integer_type_node, 2, integer_type_node, ppvoid_type_node);
4460 :
4461 475 : gfor_fndecl_caf_stopped_images
4462 475 : = gfc_build_library_function_decl_with_spec (
4463 : get_identifier (PREFIX("caf_stopped_images")), ". w r r ",
4464 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4465 : integer_type_node);
4466 :
4467 475 : gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec (
4468 : get_identifier (PREFIX("caf_co_broadcast")), ". w . w w . ",
4469 : void_type_node, 5, pvoid_type_node, integer_type_node,
4470 : pint_type, pchar_type_node, size_type_node);
4471 :
4472 475 : gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec (
4473 : get_identifier (PREFIX("caf_co_max")), ". w . w w . . ",
4474 : void_type_node, 6, pvoid_type_node, integer_type_node,
4475 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4476 :
4477 475 : gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec (
4478 : get_identifier (PREFIX("caf_co_min")), ". w . w w . . ",
4479 : void_type_node, 6, pvoid_type_node, integer_type_node,
4480 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4481 :
4482 475 : gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec (
4483 : get_identifier (PREFIX("caf_co_reduce")), ". w r . . w w . . ",
4484 : void_type_node, 8, pvoid_type_node,
4485 : build_pointer_type (build_varargs_function_type_list (void_type_node,
4486 : NULL_TREE)),
4487 : integer_type_node, integer_type_node, pint_type, pchar_type_node,
4488 : integer_type_node, size_type_node);
4489 :
4490 475 : gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec (
4491 : get_identifier (PREFIX("caf_co_sum")), ". w . w w . ",
4492 : void_type_node, 5, pvoid_type_node, integer_type_node,
4493 : pint_type, pchar_type_node, size_type_node);
4494 :
4495 475 : gfor_fndecl_caf_is_present_on_remote
4496 475 : = gfc_build_library_function_decl_with_spec (
4497 : get_identifier (PREFIX ("caf_is_present_on_remote")), ". r r r r r ",
4498 : integer_type_node, 5, pvoid_type_node, integer_type_node,
4499 : integer_type_node, pvoid_type_node, size_type_node);
4500 :
4501 475 : gfor_fndecl_caf_random_init = gfc_build_library_function_decl (
4502 : get_identifier (PREFIX("caf_random_init")),
4503 : void_type_node, 2, logical_type_node, logical_type_node);
4504 : }
4505 :
4506 32200 : gfc_build_intrinsic_function_decls ();
4507 32200 : gfc_build_intrinsic_lib_fndecls ();
4508 32200 : gfc_build_io_library_fndecls ();
4509 32200 : }
4510 :
4511 :
4512 : /* Evaluate the length of dummy character variables. */
4513 :
4514 : static void
4515 798 : gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl,
4516 : gfc_wrapped_block *block)
4517 : {
4518 798 : stmtblock_t init;
4519 :
4520 798 : gfc_finish_decl (cl->backend_decl);
4521 :
4522 798 : gfc_start_block (&init);
4523 :
4524 : /* Evaluate the string length expression. */
4525 798 : gfc_conv_string_length (cl, NULL, &init);
4526 :
4527 798 : gfc_trans_vla_type_sizes (sym, &init);
4528 :
4529 798 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4530 798 : }
4531 :
4532 :
4533 : /* Allocate and cleanup an automatic character variable. */
4534 :
4535 : static void
4536 360 : gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block)
4537 : {
4538 360 : stmtblock_t init;
4539 360 : tree decl;
4540 360 : tree tmp;
4541 360 : bool back;
4542 :
4543 360 : gcc_assert (sym->backend_decl);
4544 360 : gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length);
4545 :
4546 360 : gfc_init_block (&init);
4547 :
4548 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
4549 : function result (ie. proc_name = proc_name->result), gfc_add_init_cleanup
4550 : must be called with the last, optional argument false so that the process
4551 : ing of the character length occurs after the processing of the result. */
4552 360 : back = sym->fn_result_dep;
4553 :
4554 : /* Evaluate the string length expression. */
4555 360 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
4556 :
4557 360 : gfc_trans_vla_type_sizes (sym, &init);
4558 :
4559 360 : decl = sym->backend_decl;
4560 :
4561 : /* Emit a DECL_EXPR for this variable, which will cause the
4562 : gimplifier to allocate storage, and all that good stuff. */
4563 360 : tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl);
4564 360 : gfc_add_expr_to_block (&init, tmp);
4565 :
4566 360 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE, back);
4567 360 : }
4568 :
4569 : /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */
4570 :
4571 : static void
4572 64 : gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block)
4573 : {
4574 64 : stmtblock_t init;
4575 :
4576 64 : gcc_assert (sym->backend_decl);
4577 64 : gfc_start_block (&init);
4578 :
4579 : /* Set the initial value to length. See the comments in
4580 : function gfc_add_assign_aux_vars in this file. */
4581 64 : gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl),
4582 : build_int_cst (gfc_charlen_type_node, -2));
4583 :
4584 64 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4585 64 : }
4586 :
4587 : static void
4588 167780 : gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body)
4589 : {
4590 167780 : tree t = *tp, var, val;
4591 :
4592 167780 : if (t == NULL || t == error_mark_node)
4593 : return;
4594 157685 : if (TREE_CONSTANT (t) || DECL_P (t))
4595 : return;
4596 :
4597 65304 : if (TREE_CODE (t) == SAVE_EXPR)
4598 : {
4599 37612 : if (SAVE_EXPR_RESOLVED_P (t))
4600 : {
4601 0 : *tp = TREE_OPERAND (t, 0);
4602 0 : return;
4603 : }
4604 37612 : val = TREE_OPERAND (t, 0);
4605 : }
4606 : else
4607 : val = t;
4608 :
4609 65304 : var = gfc_create_var_np (TREE_TYPE (t), NULL);
4610 65304 : gfc_add_decl_to_function (var);
4611 65304 : gfc_add_modify (body, var, unshare_expr (val));
4612 65304 : if (TREE_CODE (t) == SAVE_EXPR)
4613 37612 : TREE_OPERAND (t, 0) = var;
4614 65304 : *tp = var;
4615 : }
4616 :
4617 : static void
4618 93716 : gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body)
4619 : {
4620 93716 : tree t;
4621 :
4622 93716 : if (type == NULL || type == error_mark_node)
4623 : return;
4624 :
4625 93716 : type = TYPE_MAIN_VARIANT (type);
4626 :
4627 93716 : if (TREE_CODE (type) == INTEGER_TYPE)
4628 : {
4629 51957 : gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body);
4630 51957 : gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body);
4631 :
4632 67136 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4633 : {
4634 15179 : TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type);
4635 15179 : TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type);
4636 : }
4637 : }
4638 41759 : else if (TREE_CODE (type) == ARRAY_TYPE)
4639 : {
4640 31933 : gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body);
4641 31933 : gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body);
4642 31933 : gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body);
4643 31933 : gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body);
4644 :
4645 31933 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4646 : {
4647 0 : TYPE_SIZE (t) = TYPE_SIZE (type);
4648 0 : TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type);
4649 : }
4650 : }
4651 : }
4652 :
4653 : /* Make sure all type sizes and array domains are either constant,
4654 : or variable or parameter decls. This is a simplified variant
4655 : of gimplify_type_sizes, but we can't use it here, as none of the
4656 : variables in the expressions have been gimplified yet.
4657 : As type sizes and domains for various variable length arrays
4658 : contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars
4659 : time, without this routine gimplify_type_sizes in the middle-end
4660 : could result in the type sizes being gimplified earlier than where
4661 : those variables are initialized. */
4662 :
4663 : void
4664 28352 : gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body)
4665 : {
4666 28352 : tree type = TREE_TYPE (sym->backend_decl);
4667 :
4668 28352 : if (TREE_CODE (type) == FUNCTION_TYPE
4669 1111 : && (sym->attr.function || sym->attr.result || sym->attr.entry))
4670 : {
4671 1111 : if (! current_fake_result_decl)
4672 : return;
4673 :
4674 1111 : type = TREE_TYPE (TREE_VALUE (current_fake_result_decl));
4675 : }
4676 :
4677 55823 : while (POINTER_TYPE_P (type))
4678 27471 : type = TREE_TYPE (type);
4679 :
4680 28352 : if (GFC_DESCRIPTOR_TYPE_P (type))
4681 : {
4682 1498 : tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type);
4683 :
4684 2996 : while (POINTER_TYPE_P (etype))
4685 1498 : etype = TREE_TYPE (etype);
4686 :
4687 1498 : gfc_trans_vla_type_sizes_1 (etype, body);
4688 : }
4689 :
4690 28352 : gfc_trans_vla_type_sizes_1 (type, body);
4691 : }
4692 :
4693 :
4694 : /* Initialize a derived type by building an lvalue from the symbol
4695 : and using trans_assignment to do the work. Set dealloc to false
4696 : if no deallocation prior the assignment is needed. */
4697 : void
4698 1531 : gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc,
4699 : bool pdt_ok)
4700 : {
4701 1531 : gfc_expr *e;
4702 1531 : tree tmp;
4703 1531 : tree present;
4704 :
4705 1531 : gcc_assert (block);
4706 :
4707 : /* Initialization of PDTs is done elsewhere. */
4708 1531 : if (IS_PDT (sym) && !pdt_ok)
4709 : return;
4710 :
4711 1184 : gcc_assert (!sym->attr.allocatable);
4712 1184 : gfc_set_sym_referenced (sym);
4713 1184 : e = gfc_lval_expr_from_sym (sym);
4714 1184 : tmp = gfc_trans_assignment (e, sym->value, false, dealloc);
4715 1184 : if (sym->attr.dummy && (sym->attr.optional
4716 241 : || sym->ns->proc_name->attr.entry_master))
4717 : {
4718 39 : present = gfc_conv_expr_present (sym);
4719 39 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present,
4720 : tmp, build_empty_stmt (input_location));
4721 : }
4722 1184 : gfc_add_expr_to_block (block, tmp);
4723 1184 : gfc_free_expr (e);
4724 : }
4725 :
4726 :
4727 : /* Initialize a PDT, either when the symbol has a value or when all the
4728 : components have an initializer. */
4729 : static tree
4730 582 : gfc_init_default_pdt (gfc_symbol *sym, bool dealloc)
4731 : {
4732 582 : stmtblock_t block;
4733 582 : tree tmp;
4734 582 : gfc_component *c;
4735 :
4736 582 : if (sym->value && sym->value->symtree
4737 12 : && sym->value->symtree->n.sym
4738 12 : && !sym->value->symtree->n.sym->attr.artificial)
4739 : {
4740 12 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym),
4741 : sym->value, false, false, true);
4742 12 : return tmp;
4743 : }
4744 :
4745 570 : if (!dealloc || !sym->value)
4746 : return NULL_TREE;
4747 :
4748 : /* Allowed in the case where all the components have initializers and
4749 : there are no LEN components. */
4750 354 : c = sym->ts.u.derived->components;
4751 581 : for (; c; c = c->next)
4752 555 : if (c->attr.pdt_len || !c->initializer)
4753 : return NULL_TREE;
4754 :
4755 26 : gfc_init_block (&block);
4756 26 : gfc_init_default_dt (sym, &block, dealloc, true);
4757 26 : return gfc_finish_block (&block);
4758 : }
4759 :
4760 :
4761 : /* Initialize INTENT(OUT) derived type dummies. As well as giving
4762 : them their default initializer, if they have allocatable
4763 : components, they have their allocatable components deallocated. */
4764 :
4765 : static void
4766 102012 : init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4767 : {
4768 102012 : stmtblock_t init;
4769 102012 : gfc_formal_arglist *f;
4770 102012 : tree tmp;
4771 102012 : tree present;
4772 102012 : gfc_symbol *s;
4773 :
4774 102012 : gfc_init_block (&init);
4775 206639 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
4776 104627 : if (f->sym && f->sym->attr.intent == INTENT_OUT
4777 4155 : && !f->sym->attr.pointer
4778 4101 : && f->sym->ts.type == BT_DERIVED)
4779 : {
4780 517 : s = f->sym;
4781 517 : tmp = NULL_TREE;
4782 :
4783 : /* Note: Allocatables are excluded as they are already handled
4784 : by the caller. */
4785 517 : if (!f->sym->attr.allocatable
4786 517 : && gfc_is_finalizable (s->ts.u.derived, NULL))
4787 : {
4788 38 : stmtblock_t block;
4789 38 : gfc_expr *e;
4790 :
4791 38 : gfc_init_block (&block);
4792 38 : s->attr.referenced = 1;
4793 38 : e = gfc_lval_expr_from_sym (s);
4794 38 : gfc_add_finalizer_call (&block, e);
4795 38 : gfc_free_expr (e);
4796 38 : tmp = gfc_finish_block (&block);
4797 : }
4798 :
4799 : /* Note: Allocatables are excluded as they are already handled
4800 : by the caller. */
4801 517 : if (tmp == NULL_TREE && !s->attr.allocatable
4802 358 : && s->ts.u.derived->attr.alloc_comp)
4803 126 : tmp = gfc_deallocate_alloc_comp (s->ts.u.derived,
4804 : s->backend_decl,
4805 126 : s->as ? s->as->rank : 0);
4806 :
4807 517 : if (tmp != NULL_TREE && (s->attr.optional
4808 145 : || s->ns->proc_name->attr.entry_master))
4809 : {
4810 19 : present = gfc_conv_expr_present (s);
4811 19 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4812 : present, tmp, build_empty_stmt (input_location));
4813 : }
4814 :
4815 517 : gfc_add_expr_to_block (&init, tmp);
4816 517 : if (s->value && !s->attr.allocatable)
4817 273 : gfc_init_default_dt (s, &init, false);
4818 : }
4819 104110 : else if (f->sym && f->sym->attr.intent == INTENT_OUT
4820 3638 : && f->sym->ts.type == BT_CLASS
4821 672 : && !CLASS_DATA (f->sym)->attr.class_pointer
4822 653 : && !CLASS_DATA (f->sym)->attr.allocatable)
4823 : {
4824 430 : stmtblock_t block;
4825 430 : gfc_expr *e;
4826 :
4827 430 : gfc_init_block (&block);
4828 430 : f->sym->attr.referenced = 1;
4829 430 : e = gfc_lval_expr_from_sym (f->sym);
4830 430 : gfc_add_finalizer_call (&block, e);
4831 430 : gfc_free_expr (e);
4832 430 : tmp = gfc_finish_block (&block);
4833 :
4834 430 : if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master)
4835 : {
4836 6 : present = gfc_conv_expr_present (f->sym);
4837 6 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4838 : present, tmp,
4839 : build_empty_stmt (input_location));
4840 : }
4841 430 : gfc_add_expr_to_block (&init, tmp);
4842 : }
4843 102012 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4844 102012 : }
4845 :
4846 :
4847 : /* Helper function to manage deferred string lengths. */
4848 :
4849 : static tree
4850 168 : gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init,
4851 : location_t loc)
4852 : {
4853 168 : tree tmp;
4854 :
4855 : /* Character length passed by reference. */
4856 168 : tmp = sym->ts.u.cl->passed_length;
4857 168 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
4858 168 : tmp = fold_convert (gfc_charlen_type_node, tmp);
4859 :
4860 168 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
4861 : /* Zero the string length when entering the scope. */
4862 168 : gfc_add_modify (init, sym->ts.u.cl->backend_decl,
4863 : build_int_cst (gfc_charlen_type_node, 0));
4864 : else
4865 : {
4866 0 : tree tmp2;
4867 :
4868 0 : tmp2 = fold_build2_loc (input_location, MODIFY_EXPR,
4869 : gfc_charlen_type_node,
4870 0 : sym->ts.u.cl->backend_decl, tmp);
4871 0 : if (sym->attr.optional)
4872 : {
4873 0 : tree present = gfc_conv_expr_present (sym);
4874 0 : tmp2 = build3_loc (input_location, COND_EXPR,
4875 : void_type_node, present, tmp2,
4876 : build_empty_stmt (input_location));
4877 : }
4878 0 : gfc_add_expr_to_block (init, tmp2);
4879 : }
4880 :
4881 168 : input_location = loc;
4882 :
4883 : /* Pass the final character length back. */
4884 168 : if (sym->attr.intent != INTENT_IN)
4885 : {
4886 336 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
4887 : gfc_charlen_type_node, tmp,
4888 168 : sym->ts.u.cl->backend_decl);
4889 168 : if (sym->attr.optional)
4890 : {
4891 0 : tree present = gfc_conv_expr_present (sym);
4892 0 : tmp = build3_loc (input_location, COND_EXPR,
4893 : void_type_node, present, tmp,
4894 : build_empty_stmt (input_location));
4895 : }
4896 : }
4897 : else
4898 : tmp = NULL_TREE;
4899 :
4900 168 : return tmp;
4901 : }
4902 :
4903 :
4904 : /* Get the result expression for a procedure. */
4905 :
4906 : static tree
4907 25943 : get_proc_result (gfc_symbol* sym)
4908 : {
4909 25943 : if (sym->attr.subroutine || sym == sym->result)
4910 : {
4911 12842 : if (current_fake_result_decl != NULL)
4912 12652 : return TREE_VALUE (current_fake_result_decl);
4913 :
4914 : return NULL_TREE;
4915 : }
4916 :
4917 13101 : return sym->result->backend_decl;
4918 : }
4919 :
4920 :
4921 : /* Generate function entry and exit code, and add it to the function body.
4922 : This includes:
4923 : Allocation and initialization of array variables.
4924 : Allocation of character string variables.
4925 : Initialization and possibly repacking of dummy arrays.
4926 : Initialization of ASSIGN statement auxiliary variable.
4927 : Initialization of ASSOCIATE names.
4928 : Automatic deallocation. */
4929 :
4930 : void
4931 102012 : gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4932 : {
4933 102012 : location_t loc;
4934 102012 : gfc_symbol *sym;
4935 102012 : gfc_formal_arglist *f;
4936 102012 : stmtblock_t tmpblock;
4937 102012 : bool seen_trans_deferred_array = false;
4938 102012 : bool is_pdt_type = false;
4939 102012 : tree tmp = NULL;
4940 102012 : gfc_expr *e;
4941 102012 : gfc_se se;
4942 102012 : stmtblock_t init;
4943 :
4944 : /* Deal with implicit return variables. Explicit return variables will
4945 : already have been added. */
4946 102012 : if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym)
4947 : {
4948 1706 : if (!current_fake_result_decl)
4949 : {
4950 81 : gfc_entry_list *el = NULL;
4951 81 : if (proc_sym->attr.entry_master)
4952 : {
4953 46 : for (el = proc_sym->ns->entries; el; el = el->next)
4954 46 : if (el->sym != el->sym->result)
4955 : break;
4956 : }
4957 : /* TODO: move to the appropriate place in resolve.cc. */
4958 81 : if (warn_return_type > 0 && el == NULL)
4959 4 : gfc_warning (OPT_Wreturn_type,
4960 : "Return value of function %qs at %L not set",
4961 : proc_sym->name, &proc_sym->declared_at);
4962 : }
4963 1625 : else if (proc_sym->as)
4964 : {
4965 807 : tree result = TREE_VALUE (current_fake_result_decl);
4966 807 : loc = input_location;
4967 807 : input_location = gfc_get_location (&proc_sym->declared_at);
4968 807 : gfc_trans_dummy_array_bias (proc_sym, result, block);
4969 :
4970 : /* An automatic character length, pointer array result. */
4971 807 : if (proc_sym->ts.type == BT_CHARACTER
4972 69 : && VAR_P (proc_sym->ts.u.cl->backend_decl))
4973 : {
4974 51 : tmp = NULL;
4975 51 : if (proc_sym->ts.deferred)
4976 : {
4977 12 : gfc_start_block (&init);
4978 12 : tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, loc);
4979 12 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
4980 : }
4981 : else
4982 39 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
4983 : }
4984 : }
4985 818 : else if (proc_sym->ts.type == BT_CHARACTER)
4986 : {
4987 782 : if (proc_sym->ts.deferred)
4988 : {
4989 97 : tmp = NULL;
4990 97 : loc = input_location;
4991 97 : input_location = gfc_get_location (&proc_sym->declared_at);
4992 97 : gfc_start_block (&init);
4993 : /* Zero the string length on entry. */
4994 97 : gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl,
4995 : build_int_cst (gfc_charlen_type_node, 0));
4996 : /* Null the pointer. */
4997 97 : e = gfc_lval_expr_from_sym (proc_sym);
4998 97 : gfc_init_se (&se, NULL);
4999 97 : se.want_pointer = 1;
5000 97 : gfc_conv_expr (&se, e);
5001 97 : gfc_free_expr (e);
5002 97 : tmp = se.expr;
5003 97 : gfc_add_modify (&init, tmp,
5004 97 : fold_convert (TREE_TYPE (se.expr),
5005 : null_pointer_node));
5006 97 : input_location = loc;
5007 :
5008 : /* Pass back the string length on exit. */
5009 97 : tmp = proc_sym->ts.u.cl->backend_decl;
5010 97 : if (TREE_CODE (tmp) != INDIRECT_REF
5011 97 : && proc_sym->ts.u.cl->passed_length)
5012 : {
5013 97 : tmp = proc_sym->ts.u.cl->passed_length;
5014 97 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
5015 194 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
5016 97 : TREE_TYPE (tmp), tmp,
5017 97 : fold_convert
5018 : (TREE_TYPE (tmp),
5019 : proc_sym->ts.u.cl->backend_decl));
5020 : }
5021 : else
5022 : tmp = NULL_TREE;
5023 :
5024 97 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5025 : }
5026 685 : else if (VAR_P (proc_sym->ts.u.cl->backend_decl))
5027 399 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
5028 : }
5029 : else
5030 36 : gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX);
5031 : }
5032 100306 : else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym))
5033 : {
5034 : /* Nullify explicit return class arrays on entry. */
5035 34 : tmp = get_proc_result (proc_sym);
5036 34 : if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp)))
5037 : {
5038 34 : gfc_start_block (&init);
5039 34 : tmp = gfc_class_data_get (tmp);
5040 34 : gfc_init_result_descriptor (&init, tmp);
5041 34 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
5042 : }
5043 : }
5044 :
5045 102012 : sym = (proc_sym->attr.function
5046 102012 : && proc_sym != proc_sym->result) ? proc_sym->result : NULL;
5047 :
5048 7621 : if (sym && !sym->attr.allocatable && !sym->attr.pointer
5049 6978 : && sym->attr.referenced
5050 14501 : && IS_PDT (sym) && !gfc_has_default_initializer (sym->ts.u.derived))
5051 : {
5052 6 : gfc_init_block (&tmpblock);
5053 6 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
5054 : sym->backend_decl,
5055 6 : sym->as ? sym->as->rank : 0,
5056 6 : sym->param_list);
5057 6 : gfc_add_expr_to_block (&tmpblock, tmp);
5058 6 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5059 : }
5060 :
5061 : /* Initialize the INTENT(OUT) derived type dummy arguments. This
5062 : should be done here so that the offsets and lbounds of arrays
5063 : are available. */
5064 102012 : loc = input_location;
5065 102012 : input_location = gfc_get_location (&proc_sym->declared_at);
5066 102012 : init_intent_out_dt (proc_sym, block);
5067 102012 : input_location = loc;
5068 :
5069 : /* For some reasons, internal procedures point to the parent's
5070 : namespace. Top-level procedure and variables inside BLOCK are fine. */
5071 102012 : gfc_namespace *omp_ns = proc_sym->ns;
5072 102012 : if (proc_sym->ns->proc_name != proc_sym)
5073 204688 : for (omp_ns = proc_sym->ns->contained; omp_ns;
5074 167115 : omp_ns = omp_ns->sibling)
5075 204565 : if (omp_ns->proc_name == proc_sym)
5076 : break;
5077 :
5078 : /* Add 'omp allocate' attribute for gfc_trans_auto_array_allocation and
5079 : unset attr.omp_allocate for 'omp allocate allocator(omp_default_mem_alloc),
5080 : which has the normal codepath except for an invalid-use check in the ME.
5081 : The main processing happens later in this function. */
5082 102012 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5083 102067 : n; n = n->next)
5084 55 : if (!TREE_STATIC (n->sym->backend_decl))
5085 : {
5086 : /* Add empty entries - described and to be filled below. */
5087 36 : tree tmp = build_tree_list (NULL_TREE, NULL_TREE);
5088 36 : TREE_CHAIN (tmp) = build_tree_list (NULL_TREE, NULL_TREE);
5089 36 : DECL_ATTRIBUTES (n->sym->backend_decl)
5090 36 : = tree_cons (get_identifier ("omp allocate"), tmp,
5091 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5092 36 : if (n->u.align == NULL
5093 29 : && n->u2.allocator != NULL
5094 7 : && n->u2.allocator->expr_type == EXPR_CONSTANT
5095 2 : && mpz_cmp_si (n->u2.allocator->value.integer, 1) == 0)
5096 1 : n->sym->attr.omp_allocate = 0;
5097 : }
5098 :
5099 178659 : for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink)
5100 : {
5101 76647 : bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED)
5102 76647 : && (sym->ts.u.derived->attr.alloc_comp
5103 6237 : || gfc_is_finalizable (sym->ts.u.derived,
5104 76647 : NULL));
5105 76647 : if (sym->assoc || sym->attr.vtab)
5106 5252 : continue;
5107 :
5108 : /* Set the vptr of unlimited polymorphic pointer variables so that
5109 : they do not cause segfaults in select type, when the selector
5110 : is an intrinsic type. */
5111 71395 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
5112 1096 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc
5113 1096 : && !sym->attr.dummy && CLASS_DATA (sym)->attr.class_pointer)
5114 : {
5115 314 : gfc_symbol *vtab;
5116 314 : gfc_init_block (&tmpblock);
5117 314 : vtab = gfc_find_vtab (&sym->ts);
5118 314 : if (!vtab->backend_decl)
5119 : {
5120 48 : if (!vtab->attr.referenced)
5121 6 : gfc_set_sym_referenced (vtab);
5122 48 : gfc_get_symbol_decl (vtab);
5123 : }
5124 314 : tmp = gfc_class_vptr_get (sym->backend_decl);
5125 314 : gfc_add_modify (&tmpblock, tmp,
5126 314 : gfc_build_addr_expr (TREE_TYPE (tmp),
5127 : vtab->backend_decl));
5128 314 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5129 : }
5130 :
5131 71395 : if (sym->ts.type == BT_DERIVED
5132 11378 : && sym->ts.u.derived
5133 11378 : && (sym->ts.u.derived->attr.pdt_type || sym->ts.u.derived->attr.pdt_comp))
5134 : {
5135 772 : is_pdt_type = true;
5136 772 : gfc_init_block (&tmpblock);
5137 :
5138 772 : if (!sym->attr.dummy && !sym->attr.pointer)
5139 : {
5140 582 : tmp = gfc_init_default_pdt (sym, true);
5141 582 : if (!sym->attr.allocatable && tmp == NULL_TREE)
5142 : {
5143 424 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
5144 : sym->backend_decl,
5145 424 : sym->as ? sym->as->rank : 0,
5146 424 : sym->param_list);
5147 424 : gfc_add_expr_to_block (&tmpblock, tmp);
5148 : }
5149 120 : else if (tmp != NULL_TREE)
5150 38 : gfc_add_expr_to_block (&tmpblock, tmp);
5151 :
5152 582 : if (!sym->attr.result && !sym->ts.u.derived->attr.alloc_comp)
5153 457 : tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived,
5154 : sym->backend_decl,
5155 457 : sym->as ? sym->as->rank : 0);
5156 : else
5157 : tmp = NULL_TREE;
5158 :
5159 582 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5160 : }
5161 190 : else if (sym->attr.dummy)
5162 : {
5163 68 : tmp = gfc_check_pdt_dummy (sym->ts.u.derived,
5164 : sym->backend_decl,
5165 68 : sym->as ? sym->as->rank : 0,
5166 68 : sym->param_list);
5167 68 : gfc_add_expr_to_block (&tmpblock, tmp);
5168 68 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5169 : }
5170 : }
5171 70623 : else if (IS_CLASS_PDT (sym))
5172 : {
5173 18 : gfc_component *data = CLASS_DATA (sym);
5174 18 : is_pdt_type = true;
5175 18 : gfc_init_block (&tmpblock);
5176 18 : if (!(sym->attr.dummy
5177 18 : || CLASS_DATA (sym)->attr.pointer
5178 18 : || CLASS_DATA (sym)->attr.allocatable))
5179 : {
5180 0 : tmp = gfc_class_data_get (sym->backend_decl);
5181 0 : tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp,
5182 0 : data->as ? data->as->rank : 0,
5183 0 : sym->param_list);
5184 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5185 0 : tmp = gfc_class_data_get (sym->backend_decl);
5186 0 : if (!sym->attr.result)
5187 0 : tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp,
5188 0 : data->as ? data->as->rank : 0);
5189 : else
5190 : tmp = NULL_TREE;
5191 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5192 : }
5193 18 : else if (sym->attr.dummy)
5194 : {
5195 0 : tmp = gfc_class_data_get (sym->backend_decl);
5196 0 : tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp,
5197 0 : data->as ? data->as->rank : 0,
5198 0 : sym->param_list);
5199 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5200 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5201 : }
5202 : }
5203 :
5204 71395 : if (sym->ts.type == BT_CLASS
5205 4044 : && (sym->attr.save || flag_max_stack_var_size == 0)
5206 58 : && CLASS_DATA (sym)->attr.allocatable)
5207 : {
5208 40 : tree vptr;
5209 :
5210 40 : if (UNLIMITED_POLY (sym))
5211 0 : vptr = null_pointer_node;
5212 : else
5213 : {
5214 40 : gfc_symbol *vsym;
5215 40 : vsym = gfc_find_derived_vtab (sym->ts.u.derived);
5216 40 : vptr = gfc_get_symbol_decl (vsym);
5217 40 : vptr = gfc_build_addr_expr (NULL, vptr);
5218 : }
5219 :
5220 40 : if (CLASS_DATA (sym)->attr.dimension
5221 8 : || (CLASS_DATA (sym)->attr.codimension
5222 1 : && flag_coarray != GFC_FCOARRAY_LIB))
5223 : {
5224 33 : tmp = gfc_class_data_get (sym->backend_decl);
5225 33 : tmp = gfc_build_null_descriptor (TREE_TYPE (tmp));
5226 : }
5227 : else
5228 7 : tmp = null_pointer_node;
5229 :
5230 40 : DECL_INITIAL (sym->backend_decl)
5231 40 : = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp);
5232 40 : TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1;
5233 40 : }
5234 71355 : else if ((sym->attr.dimension || sym->attr.codimension
5235 13066 : || (IS_CLASS_COARRAY_OR_ARRAY (sym)
5236 2145 : && !CLASS_DATA (sym)->attr.allocatable)))
5237 : {
5238 59247 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
5239 59247 : symbol_attribute *array_attr;
5240 59247 : gfc_array_spec *as;
5241 59247 : array_type type_of_array;
5242 :
5243 59247 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
5244 59247 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
5245 : /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */
5246 59247 : type_of_array = as->type;
5247 59247 : if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed)
5248 : type_of_array = AS_EXPLICIT;
5249 59176 : switch (type_of_array)
5250 : {
5251 39029 : case AS_EXPLICIT:
5252 39029 : if (sym->attr.dummy || sym->attr.result)
5253 6407 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5254 : /* Allocatable and pointer arrays need to processed
5255 : explicitly. */
5256 32622 : else if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
5257 32622 : || (sym->ts.type == BT_CLASS
5258 0 : && CLASS_DATA (sym)->attr.class_pointer)
5259 32622 : || array_attr->allocatable)
5260 : {
5261 0 : if (TREE_STATIC (sym->backend_decl))
5262 : {
5263 0 : loc = input_location;
5264 0 : input_location = gfc_get_location (&sym->declared_at);
5265 0 : gfc_trans_static_array_pointer (sym);
5266 0 : input_location = loc;
5267 : }
5268 : else
5269 : {
5270 0 : seen_trans_deferred_array = true;
5271 0 : gfc_trans_deferred_array (sym, block);
5272 : }
5273 : }
5274 32622 : else if (sym->attr.codimension
5275 467 : && TREE_STATIC (sym->backend_decl))
5276 : {
5277 405 : gfc_init_block (&tmpblock);
5278 405 : gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl),
5279 : &tmpblock, sym);
5280 405 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5281 : NULL_TREE);
5282 405 : continue;
5283 : }
5284 32217 : else if (sym->attr.codimension && !sym->attr.dimension)
5285 : {
5286 : /* Scalar coarrays do not need array allocation. */
5287 40 : continue;
5288 : }
5289 : else
5290 : {
5291 32177 : loc = input_location;
5292 32177 : input_location = gfc_get_location (&sym->declared_at);
5293 :
5294 32177 : if (alloc_comp_or_fini)
5295 : {
5296 539 : seen_trans_deferred_array = true;
5297 539 : gfc_trans_deferred_array (sym, block);
5298 : }
5299 31638 : else if (sym->ts.type == BT_DERIVED
5300 1876 : && sym->value
5301 558 : && !sym->attr.data
5302 532 : && sym->attr.save == SAVE_NONE)
5303 : {
5304 301 : gfc_start_block (&tmpblock);
5305 301 : gfc_init_default_dt (sym, &tmpblock, false);
5306 301 : gfc_add_init_cleanup (block,
5307 : gfc_finish_block (&tmpblock),
5308 : NULL_TREE);
5309 : }
5310 :
5311 32177 : gfc_trans_auto_array_allocation (sym->backend_decl,
5312 : sym, block);
5313 32177 : input_location = loc;
5314 : }
5315 : break;
5316 :
5317 1539 : case AS_ASSUMED_SIZE:
5318 : /* Must be a dummy parameter. */
5319 1539 : gcc_assert (sym->attr.dummy || as->cp_was_assumed);
5320 :
5321 : /* We should always pass assumed size arrays the g77 way. */
5322 1539 : if (sym->attr.dummy)
5323 1539 : gfc_trans_g77_array (sym, block);
5324 : break;
5325 :
5326 6170 : case AS_ASSUMED_SHAPE:
5327 : /* Must be a dummy parameter. */
5328 6170 : gcc_assert (sym->attr.dummy);
5329 :
5330 6170 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5331 6170 : break;
5332 :
5333 12509 : case AS_ASSUMED_RANK:
5334 12509 : case AS_DEFERRED:
5335 12509 : seen_trans_deferred_array = true;
5336 12509 : gfc_trans_deferred_array (sym, block);
5337 12509 : if (sym->ts.type == BT_CHARACTER && sym->ts.deferred
5338 754 : && sym->attr.result)
5339 : {
5340 32 : gfc_start_block (&init);
5341 32 : loc = input_location;
5342 32 : input_location = gfc_get_location (&sym->declared_at);
5343 32 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5344 32 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5345 : }
5346 : break;
5347 :
5348 0 : default:
5349 0 : gcc_unreachable ();
5350 : }
5351 58802 : if (alloc_comp_or_fini && !seen_trans_deferred_array)
5352 330 : gfc_trans_deferred_array (sym, block);
5353 : }
5354 12108 : else if ((!sym->attr.dummy || sym->ts.deferred)
5355 11894 : && (sym->ts.type == BT_CLASS
5356 3046 : && CLASS_DATA (sym)->attr.class_pointer))
5357 535 : gfc_trans_class_array (sym, block);
5358 11573 : else if ((!sym->attr.dummy || sym->ts.deferred)
5359 11359 : && (sym->attr.allocatable
5360 8955 : || (sym->attr.pointer && sym->attr.result)
5361 8904 : || (sym->ts.type == BT_CLASS
5362 2511 : && CLASS_DATA (sym)->attr.allocatable)))
5363 : {
5364 : /* Ensure that the initialization block may be generated also for
5365 : dummy and result variables when -fno-automatic is specified, which
5366 : sets flag_max_stack_var_size=0. */
5367 4966 : if (!sym->attr.save
5368 4887 : && (flag_max_stack_var_size != 0
5369 3 : || sym->attr.dummy
5370 3 : || sym->attr.result))
5371 : {
5372 4887 : tree descriptor = NULL_TREE;
5373 :
5374 4887 : loc = input_location;
5375 4887 : input_location = gfc_get_location (&sym->declared_at);
5376 4887 : gfc_start_block (&init);
5377 :
5378 4887 : if (sym->ts.type == BT_CHARACTER
5379 1013 : && sym->attr.allocatable
5380 989 : && !sym->attr.dimension
5381 989 : && sym->ts.u.cl && sym->ts.u.cl->length
5382 191 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
5383 27 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
5384 :
5385 4887 : if (!sym->attr.pointer)
5386 : {
5387 : /* Nullify and automatic deallocation of allocatable
5388 : scalars. */
5389 4836 : e = gfc_lval_expr_from_sym (sym);
5390 4836 : if (sym->ts.type == BT_CLASS)
5391 2511 : gfc_add_data_component (e);
5392 :
5393 4836 : gfc_init_se (&se, NULL);
5394 4836 : if (sym->ts.type != BT_CLASS
5395 2511 : || sym->ts.u.derived->attr.dimension
5396 2511 : || sym->ts.u.derived->attr.codimension)
5397 : {
5398 2325 : se.want_pointer = 1;
5399 2325 : gfc_conv_expr (&se, e);
5400 : }
5401 2511 : else if (sym->ts.type == BT_CLASS
5402 2511 : && !CLASS_DATA (sym)->attr.dimension
5403 1382 : && !CLASS_DATA (sym)->attr.codimension)
5404 : {
5405 1324 : se.want_pointer = 1;
5406 1324 : gfc_conv_expr (&se, e);
5407 : }
5408 : else
5409 : {
5410 1187 : se.descriptor_only = 1;
5411 1187 : gfc_conv_expr (&se, e);
5412 1187 : descriptor = se.expr;
5413 1187 : se.expr = gfc_conv_descriptor_data_get (se.expr);
5414 : }
5415 4836 : gfc_free_expr (e);
5416 :
5417 4836 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
5418 : {
5419 : /* Nullify when entering the scope. */
5420 4836 : if (sym->ts.type == BT_CLASS
5421 2511 : && (CLASS_DATA (sym)->attr.dimension
5422 1382 : || CLASS_DATA (sym)->attr.codimension))
5423 : {
5424 1187 : stmtblock_t nullify;
5425 1187 : gfc_init_block (&nullify);
5426 1187 : gfc_conv_descriptor_data_set (&nullify, descriptor,
5427 : null_pointer_node);
5428 1187 : tmp = gfc_finish_block (&nullify);
5429 1187 : }
5430 : else
5431 : {
5432 3649 : tree typed_null = fold_convert (TREE_TYPE (se.expr),
5433 : null_pointer_node);
5434 3649 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
5435 3649 : TREE_TYPE (se.expr), se.expr,
5436 : typed_null);
5437 : }
5438 4836 : if (sym->attr.optional)
5439 : {
5440 0 : tree present = gfc_conv_expr_present (sym);
5441 0 : tmp = build3_loc (input_location, COND_EXPR,
5442 : void_type_node, present, tmp,
5443 : build_empty_stmt (input_location));
5444 : }
5445 4836 : gfc_add_expr_to_block (&init, tmp);
5446 : }
5447 : }
5448 :
5449 4887 : if ((sym->attr.dummy || sym->attr.result)
5450 523 : && sym->ts.type == BT_CHARACTER
5451 124 : && sym->ts.deferred
5452 124 : && sym->ts.u.cl->passed_length)
5453 124 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5454 : else
5455 : {
5456 4763 : input_location = loc;
5457 4763 : tmp = NULL_TREE;
5458 : }
5459 :
5460 : /* Initialize descriptor's TKR information. */
5461 4887 : if (sym->ts.type == BT_CLASS)
5462 2511 : gfc_trans_class_array (sym, block);
5463 :
5464 : /* Deallocate when leaving the scope. Nullifying is not
5465 : needed. */
5466 4887 : if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer
5467 4364 : && !sym->ns->proc_name->attr.is_main_program)
5468 : {
5469 1520 : if (sym->ts.type == BT_CLASS
5470 562 : && CLASS_DATA (sym)->attr.codimension)
5471 6 : tmp = gfc_deallocate_with_status (descriptor, NULL_TREE,
5472 : NULL_TREE, NULL_TREE,
5473 : NULL_TREE, true, NULL,
5474 : GFC_CAF_COARRAY_ANALYZE);
5475 : else
5476 : {
5477 1514 : gfc_expr *expr = gfc_lval_expr_from_sym (sym);
5478 1514 : tmp = gfc_deallocate_scalar_with_status (se.expr,
5479 : NULL_TREE,
5480 : NULL_TREE,
5481 : true, expr,
5482 : sym->ts);
5483 1514 : gfc_free_expr (expr);
5484 : }
5485 : }
5486 :
5487 4887 : if (sym->ts.type == BT_CLASS)
5488 : {
5489 : /* Initialize _vptr to declared type. */
5490 2511 : loc = input_location;
5491 2511 : input_location = gfc_get_location (&sym->declared_at);
5492 :
5493 2511 : e = gfc_lval_expr_from_sym (sym);
5494 2511 : gfc_reset_vptr (&init, e);
5495 2511 : gfc_free_expr (e);
5496 2511 : input_location = loc;
5497 : }
5498 :
5499 4887 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5500 : }
5501 : }
5502 6607 : else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred)
5503 : {
5504 274 : tree tmp = NULL;
5505 274 : stmtblock_t init;
5506 :
5507 : /* If we get to here, all that should be left are pointers. */
5508 274 : gcc_assert (sym->attr.pointer);
5509 :
5510 274 : if (sym->attr.dummy)
5511 : {
5512 0 : gfc_start_block (&init);
5513 0 : loc = input_location;
5514 0 : input_location = gfc_get_location (&sym->declared_at);
5515 0 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5516 0 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5517 : }
5518 274 : }
5519 6333 : else if (sym->ts.deferred)
5520 0 : gfc_fatal_error ("Deferred type parameter not yet supported");
5521 6333 : else if (alloc_comp_or_fini)
5522 4938 : gfc_trans_deferred_array (sym, block);
5523 1395 : else if (sym->ts.type == BT_CHARACTER)
5524 : {
5525 720 : loc = input_location;
5526 720 : input_location = gfc_get_location (&sym->declared_at);
5527 720 : if (sym->attr.dummy || sym->attr.result)
5528 360 : gfc_trans_dummy_character (sym, sym->ts.u.cl, block);
5529 : else
5530 360 : gfc_trans_auto_character_variable (sym, block);
5531 720 : input_location = loc;
5532 : }
5533 675 : else if (sym->attr.assign)
5534 : {
5535 64 : loc = input_location;
5536 64 : input_location = gfc_get_location (&sym->declared_at);
5537 64 : gfc_trans_assign_aux_var (sym, block);
5538 64 : input_location = loc;
5539 : }
5540 611 : else if (sym->ts.type == BT_DERIVED
5541 611 : && sym->value
5542 526 : && !sym->attr.data
5543 526 : && sym->attr.save == SAVE_NONE)
5544 : {
5545 493 : gfc_start_block (&tmpblock);
5546 493 : gfc_init_default_dt (sym, &tmpblock, false);
5547 493 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5548 : NULL_TREE);
5549 : }
5550 118 : else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type)
5551 0 : gcc_unreachable ();
5552 : }
5553 :
5554 : /* Handle 'omp allocate'. This has to be after the block above as
5555 : gfc_add_init_cleanup (..., init, ...) puts 'init' of later calls
5556 : before earlier calls. The code is a bit more complex as gfortran does
5557 : not really work with bind expressions / BIND_EXPR_VARS properly, i.e.
5558 : gimplify_bind_expr needs some help for placing the GOMP_alloc. Thus,
5559 : we pass on the location of the allocate-assignment expression and,
5560 : if the size is not constant, the size variable if Fortran computes this
5561 : differently. We also might add an expression location after which the
5562 : code has to be added, e.g. for character len expressions, which affect
5563 : the UNIT_SIZE. */
5564 102012 : gfc_expr *last_allocator = NULL;
5565 102012 : if (omp_ns && omp_ns->omp_allocate)
5566 : {
5567 29 : if (!block->init || TREE_CODE (block->init) != STATEMENT_LIST)
5568 : {
5569 22 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5570 22 : append_to_statement_list (tmp, &block->init);
5571 : }
5572 29 : if (!block->cleanup || TREE_CODE (block->cleanup) != STATEMENT_LIST)
5573 : {
5574 29 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5575 29 : append_to_statement_list (tmp, &block->cleanup);
5576 : }
5577 : }
5578 102012 : tree init_stmtlist = block->init;
5579 102012 : tree cleanup_stmtlist = block->cleanup;
5580 102012 : se.expr = NULL_TREE;
5581 102012 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5582 102067 : n; n = n->next)
5583 : {
5584 55 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align) : NULL_TREE);
5585 55 : if (last_allocator != n->u2.allocator)
5586 : {
5587 24 : location_t loc = input_location;
5588 24 : gfc_init_se (&se, NULL);
5589 24 : if (n->u2.allocator)
5590 : {
5591 22 : input_location = gfc_get_location (&n->u2.allocator->where);
5592 22 : gfc_conv_expr (&se, n->u2.allocator);
5593 : }
5594 : /* We need to evaluate non-constants - also to find the location
5595 : after which the GOMP_alloc has to be added to - also as BLOCK
5596 : does not yield a new BIND_EXPR_BODY. */
5597 24 : if (n->u2.allocator
5598 : && (!(CONSTANT_CLASS_P (se.expr) && DECL_P (se.expr))
5599 : || se.pre.head || se.post.head))
5600 : {
5601 22 : stmtblock_t tmpblock;
5602 22 : gfc_init_block (&tmpblock);
5603 22 : se.expr = gfc_evaluate_now (se.expr, &tmpblock);
5604 : /* First post then pre because the new code is inserted
5605 : at the top. */
5606 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.post), NULL);
5607 22 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5608 : NULL);
5609 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.pre), NULL);
5610 : }
5611 24 : last_allocator = n->u2.allocator;
5612 24 : input_location = loc;
5613 : }
5614 55 : if (TREE_STATIC (n->sym->backend_decl))
5615 19 : continue;
5616 : /* 'omp allocate( {purpose: allocator, value: align},
5617 : {purpose: init-stmtlist, value: cleanup-stmtlist},
5618 : {purpose: size-var, value: last-size-expr} )
5619 : where init-stmt/cleanup-stmt is the STATEMENT list to find the
5620 : try-final block; last-size-expr is to find the location after
5621 : which to add the code and 'size-var' is for the proper size, cf.
5622 : gfc_trans_auto_array_allocation - either or both of the latter
5623 : can be NULL. */
5624 36 : tree tmp = lookup_attribute ("omp allocate",
5625 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5626 36 : tmp = TREE_VALUE (tmp);
5627 36 : TREE_PURPOSE (tmp) = se.expr;
5628 36 : TREE_VALUE (tmp) = align;
5629 36 : TREE_PURPOSE (TREE_CHAIN (tmp)) = init_stmtlist;
5630 36 : TREE_VALUE (TREE_CHAIN (tmp)) = cleanup_stmtlist;
5631 : }
5632 :
5633 102012 : gfc_init_block (&tmpblock);
5634 :
5635 206639 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
5636 : {
5637 104627 : if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER
5638 7855 : && f->sym->ts.u.cl->backend_decl)
5639 : {
5640 7852 : if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL)
5641 4222 : gfc_trans_vla_type_sizes (f->sym, &tmpblock);
5642 : }
5643 : }
5644 :
5645 104920 : if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER
5646 103488 : && current_fake_result_decl != NULL)
5647 : {
5648 851 : gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL);
5649 851 : if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL)
5650 69 : gfc_trans_vla_type_sizes (proc_sym, &tmpblock);
5651 : }
5652 :
5653 102012 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE);
5654 102012 : }
5655 :
5656 :
5657 : struct module_hasher : ggc_ptr_hash<module_htab_entry>
5658 : {
5659 : typedef const char *compare_type;
5660 :
5661 27810 : static hashval_t hash (module_htab_entry *s)
5662 : {
5663 27810 : return htab_hash_string (s->name);
5664 : }
5665 :
5666 : static bool
5667 32863 : equal (module_htab_entry *a, const char *b)
5668 : {
5669 32863 : return !strcmp (a->name, b);
5670 : }
5671 : };
5672 :
5673 : static GTY (()) hash_table<module_hasher> *module_htab;
5674 :
5675 : /* Hash and equality functions for module_htab's decls. */
5676 :
5677 : hashval_t
5678 168162 : module_decl_hasher::hash (tree t)
5679 : {
5680 168162 : const_tree n = DECL_NAME (t);
5681 168162 : if (n == NULL_TREE)
5682 24954 : n = TYPE_NAME (TREE_TYPE (t));
5683 168162 : return htab_hash_string (IDENTIFIER_POINTER (n));
5684 : }
5685 :
5686 : bool
5687 176767 : module_decl_hasher::equal (tree t1, const char *x2)
5688 : {
5689 176767 : const_tree n1 = DECL_NAME (t1);
5690 176767 : if (n1 == NULL_TREE)
5691 26010 : n1 = TYPE_NAME (TREE_TYPE (t1));
5692 176767 : return strcmp (IDENTIFIER_POINTER (n1), x2) == 0;
5693 : }
5694 :
5695 : struct module_htab_entry *
5696 31016 : gfc_find_module (const char *name)
5697 : {
5698 31016 : if (! module_htab)
5699 8468 : module_htab = hash_table<module_hasher>::create_ggc (10);
5700 :
5701 31016 : module_htab_entry **slot
5702 31016 : = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT);
5703 31016 : if (*slot == NULL)
5704 : {
5705 10807 : module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> ();
5706 :
5707 10807 : entry->name = gfc_get_string ("%s", name);
5708 10807 : entry->decls = hash_table<module_decl_hasher>::create_ggc (10);
5709 10807 : *slot = entry;
5710 : }
5711 31016 : return *slot;
5712 : }
5713 :
5714 : void
5715 53612 : gfc_module_add_decl (struct module_htab_entry *entry, tree decl)
5716 : {
5717 53612 : const char *name;
5718 :
5719 53612 : if (DECL_NAME (decl))
5720 46474 : name = IDENTIFIER_POINTER (DECL_NAME (decl));
5721 : else
5722 : {
5723 7138 : gcc_assert (TREE_CODE (decl) == TYPE_DECL);
5724 7138 : name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl)));
5725 : }
5726 53612 : tree *slot
5727 53612 : = entry->decls->find_slot_with_hash (name, htab_hash_string (name),
5728 : INSERT);
5729 53612 : if (*slot == NULL)
5730 53600 : *slot = decl;
5731 53612 : }
5732 :
5733 :
5734 : /* Generate debugging symbols for namelists. This function must come after
5735 : generate_local_decl to ensure that the variables in the namelist are
5736 : already declared. */
5737 :
5738 : static tree
5739 783 : generate_namelist_decl (gfc_symbol * sym)
5740 : {
5741 783 : gfc_namelist *nml;
5742 783 : tree decl;
5743 783 : vec<constructor_elt, va_gc> *nml_decls = NULL;
5744 :
5745 783 : gcc_assert (sym->attr.flavor == FL_NAMELIST);
5746 2831 : for (nml = sym->namelist; nml; nml = nml->next)
5747 : {
5748 2048 : if (nml->sym->backend_decl == NULL_TREE)
5749 : {
5750 23 : nml->sym->attr.referenced = 1;
5751 23 : nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym);
5752 : }
5753 2048 : DECL_IGNORED_P (nml->sym->backend_decl) = 0;
5754 2048 : CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl);
5755 : }
5756 :
5757 783 : decl = make_node (NAMELIST_DECL);
5758 783 : TREE_TYPE (decl) = void_type_node;
5759 783 : NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls);
5760 783 : DECL_NAME (decl) = get_identifier (sym->name);
5761 783 : return decl;
5762 : }
5763 :
5764 :
5765 : /* Output an initialized decl for a module variable. */
5766 :
5767 : static void
5768 149319 : gfc_create_module_variable (gfc_symbol * sym)
5769 : {
5770 149319 : tree decl;
5771 :
5772 : /* Module functions with alternate entries are dealt with later and
5773 : would get caught by the next condition. */
5774 149319 : if (sym->attr.entry)
5775 : return;
5776 :
5777 : /* Make sure we convert the types of the derived types from iso_c_binding
5778 : into (void *). */
5779 148838 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
5780 31753 : && sym->ts.type == BT_DERIVED)
5781 1466 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
5782 :
5783 148838 : if (gfc_fl_struct (sym->attr.flavor)
5784 24319 : && sym->backend_decl
5785 7172 : && TREE_CODE (sym->backend_decl) == RECORD_TYPE)
5786 : {
5787 7138 : decl = sym->backend_decl;
5788 7138 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5789 :
5790 7138 : if (!sym->attr.use_assoc && !sym->attr.used_in_submodule)
5791 : {
5792 7041 : gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE
5793 : || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl);
5794 7041 : gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE
5795 : || DECL_CONTEXT (TYPE_STUB_DECL (decl))
5796 : == sym->ns->proc_name->backend_decl);
5797 : }
5798 7138 : TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5799 7138 : DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl;
5800 7138 : gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl));
5801 : }
5802 :
5803 : /* Only output variables, procedure pointers and array valued,
5804 : or derived type, parameters. */
5805 148838 : if (sym->attr.flavor != FL_VARIABLE
5806 125294 : && !(sym->attr.flavor == FL_PARAMETER
5807 40338 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
5808 124250 : && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer))
5809 : return;
5810 :
5811 24661 : if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl)
5812 : {
5813 461 : decl = sym->backend_decl;
5814 461 : gcc_assert (DECL_FILE_SCOPE_P (decl));
5815 461 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5816 461 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5817 461 : gfc_module_add_decl (cur_module, decl);
5818 : }
5819 :
5820 : /* Don't generate variables from other modules. Variables from
5821 : COMMONs and Cray pointees will already have been generated. */
5822 24661 : if (sym->attr.use_assoc || sym->attr.used_in_submodule
5823 19467 : || sym->attr.in_common || sym->attr.cray_pointee)
5824 : return;
5825 :
5826 : /* Equivalenced variables arrive here after creation. */
5827 19148 : if (sym->backend_decl
5828 654 : && (sym->equiv_built || sym->attr.in_equivalence))
5829 : return;
5830 :
5831 19061 : if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target)
5832 0 : gfc_internal_error ("backend decl for module variable %qs already exists",
5833 : sym->name);
5834 :
5835 19061 : if (sym->module && !sym->attr.result && !sym->attr.dummy
5836 19061 : && (sym->attr.access == ACCESS_UNKNOWN
5837 3851 : && (sym->ns->default_access == ACCESS_PRIVATE
5838 3559 : || (sym->ns->default_access == ACCESS_UNKNOWN
5839 3545 : && flag_module_private))))
5840 293 : sym->attr.access = ACCESS_PRIVATE;
5841 :
5842 19061 : if (warn_unused_variable && !sym->attr.referenced
5843 138 : && sym->attr.access == ACCESS_PRIVATE)
5844 3 : gfc_warning (OPT_Wunused_value,
5845 : "Unused PRIVATE module variable %qs declared at %L",
5846 : sym->name, &sym->declared_at);
5847 :
5848 : /* We always want module variables to be created. */
5849 19061 : sym->attr.referenced = 1;
5850 : /* Create the decl. */
5851 19061 : decl = gfc_get_symbol_decl (sym);
5852 :
5853 : /* Create the variable. */
5854 19061 : pushdecl (decl);
5855 19061 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE
5856 : || ((sym->ns->parent->proc_name->attr.flavor == FL_MODULE
5857 : || sym->ns->parent->proc_name->attr.flavor == FL_PROCEDURE)
5858 : && sym->fn_result_spec));
5859 19061 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5860 19061 : rest_of_decl_compilation (decl, 1, 0);
5861 19061 : gfc_module_add_decl (cur_module, decl);
5862 :
5863 : /* Also add length of strings. */
5864 19061 : if (sym->ts.type == BT_CHARACTER)
5865 : {
5866 400 : tree length;
5867 :
5868 400 : length = sym->ts.u.cl->backend_decl;
5869 400 : gcc_assert (length || sym->attr.proc_pointer);
5870 399 : if (length && !INTEGER_CST_P (length))
5871 : {
5872 54 : pushdecl (length);
5873 54 : rest_of_decl_compilation (length, 1, 0);
5874 : }
5875 : }
5876 :
5877 19061 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
5878 35 : && sym->attr.referenced && !sym->attr.use_assoc)
5879 35 : has_coarray_vars_or_accessors = true;
5880 : }
5881 :
5882 : /* Emit debug information for USE statements. */
5883 :
5884 : static void
5885 97022 : gfc_trans_use_stmts (gfc_namespace * ns)
5886 : {
5887 97022 : gfc_use_list *use_stmt;
5888 109094 : for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next)
5889 : {
5890 12072 : struct module_htab_entry *entry
5891 12072 : = gfc_find_module (use_stmt->module_name);
5892 12072 : gfc_use_rename *rent;
5893 :
5894 12072 : if (entry->namespace_decl == NULL)
5895 : {
5896 1336 : entry->namespace_decl
5897 1336 : = build_decl (input_location,
5898 : NAMESPACE_DECL,
5899 : get_identifier (use_stmt->module_name),
5900 : void_type_node);
5901 1336 : DECL_EXTERNAL (entry->namespace_decl) = 1;
5902 : }
5903 12072 : input_location = gfc_get_location (&use_stmt->where);
5904 12072 : if (!use_stmt->only_flag)
5905 10473 : (*debug_hooks->imported_module_or_decl) (entry->namespace_decl,
5906 : NULL_TREE,
5907 10473 : ns->proc_name->backend_decl,
5908 : false, false);
5909 14848 : for (rent = use_stmt->rename; rent; rent = rent->next)
5910 : {
5911 2776 : tree decl, local_name;
5912 :
5913 2776 : if (rent->op != INTRINSIC_NONE)
5914 105 : continue;
5915 :
5916 2671 : hashval_t hash = htab_hash_string (rent->use_name);
5917 2671 : tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash,
5918 : INSERT);
5919 2671 : if (*slot == NULL)
5920 : {
5921 1547 : gfc_symtree *st;
5922 :
5923 1547 : st = gfc_find_symtree (ns->sym_root,
5924 1547 : rent->local_name[0]
5925 : ? rent->local_name : rent->use_name);
5926 :
5927 : /* The following can happen if a derived type is renamed. */
5928 1547 : if (!st)
5929 : {
5930 0 : char *name;
5931 0 : name = xstrdup (rent->local_name[0]
5932 : ? rent->local_name : rent->use_name);
5933 0 : name[0] = (char) TOUPPER ((unsigned char) name[0]);
5934 0 : st = gfc_find_symtree (ns->sym_root, name);
5935 0 : free (name);
5936 0 : gcc_assert (st);
5937 : }
5938 :
5939 : /* Sometimes, generic interfaces wind up being over-ruled by a
5940 : local symbol (see PR41062). */
5941 1547 : if (!st->n.sym->attr.use_assoc)
5942 : {
5943 2 : *slot = error_mark_node;
5944 2 : entry->decls->clear_slot (slot);
5945 2 : continue;
5946 : }
5947 :
5948 1545 : if (st->n.sym->backend_decl
5949 173 : && DECL_P (st->n.sym->backend_decl)
5950 171 : && st->n.sym->module
5951 171 : && strcmp (st->n.sym->module, use_stmt->module_name) == 0)
5952 : {
5953 162 : gcc_assert (DECL_EXTERNAL (entry->namespace_decl)
5954 : || !VAR_P (st->n.sym->backend_decl));
5955 162 : decl = copy_node (st->n.sym->backend_decl);
5956 162 : DECL_CONTEXT (decl) = entry->namespace_decl;
5957 162 : DECL_EXTERNAL (decl) = 1;
5958 162 : DECL_IGNORED_P (decl) = 0;
5959 162 : DECL_INITIAL (decl) = NULL_TREE;
5960 : }
5961 1383 : else if (st->n.sym->attr.flavor == FL_NAMELIST
5962 0 : && st->n.sym->attr.use_only
5963 0 : && st->n.sym->module
5964 0 : && strcmp (st->n.sym->module, use_stmt->module_name)
5965 : == 0)
5966 : {
5967 0 : decl = generate_namelist_decl (st->n.sym);
5968 0 : DECL_CONTEXT (decl) = entry->namespace_decl;
5969 0 : DECL_EXTERNAL (decl) = 1;
5970 0 : DECL_IGNORED_P (decl) = 0;
5971 0 : DECL_INITIAL (decl) = NULL_TREE;
5972 : }
5973 : else
5974 : {
5975 1383 : *slot = error_mark_node;
5976 1383 : entry->decls->clear_slot (slot);
5977 1383 : continue;
5978 : }
5979 162 : *slot = decl;
5980 : }
5981 1286 : decl = (tree) *slot;
5982 1286 : if (rent->local_name[0])
5983 198 : local_name = get_identifier (rent->local_name);
5984 : else
5985 : local_name = NULL_TREE;
5986 1286 : input_location = gfc_get_location (&rent->where);
5987 1286 : (*debug_hooks->imported_module_or_decl) (decl, local_name,
5988 1286 : ns->proc_name->backend_decl,
5989 1286 : !use_stmt->only_flag,
5990 : false);
5991 : }
5992 : }
5993 97022 : }
5994 :
5995 :
5996 : /* Return true if expr is a constant initializer that gfc_conv_initializer
5997 : will handle. */
5998 :
5999 : static bool
6000 24338 : check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array,
6001 : bool pointer)
6002 : {
6003 24356 : gfc_constructor *c;
6004 24356 : gfc_component *cm;
6005 :
6006 24356 : if (pointer)
6007 : return true;
6008 24352 : else if (array)
6009 : {
6010 2622 : if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL)
6011 : return true;
6012 2583 : else if (expr->expr_type == EXPR_STRUCTURE)
6013 : return check_constant_initializer (expr, ts, false, false);
6014 2565 : else if (expr->expr_type != EXPR_ARRAY)
6015 : return false;
6016 2565 : for (c = gfc_constructor_first (expr->value.constructor);
6017 134130 : c; c = gfc_constructor_next (c))
6018 : {
6019 131565 : if (c->iterator)
6020 : return false;
6021 131565 : if (c->expr->expr_type == EXPR_STRUCTURE)
6022 : {
6023 300 : if (!check_constant_initializer (c->expr, ts, false, false))
6024 : return false;
6025 : }
6026 131265 : else if (c->expr->expr_type != EXPR_CONSTANT)
6027 : return false;
6028 : }
6029 : return true;
6030 : }
6031 21730 : else switch (ts->type)
6032 : {
6033 463 : case_bt_struct:
6034 463 : if (expr->expr_type != EXPR_STRUCTURE)
6035 : return false;
6036 463 : cm = expr->ts.u.derived->components;
6037 463 : for (c = gfc_constructor_first (expr->value.constructor);
6038 1049 : c; c = gfc_constructor_next (c), cm = cm->next)
6039 : {
6040 594 : if (!c->expr || cm->attr.allocatable)
6041 14 : continue;
6042 580 : if (!check_constant_initializer (c->expr, &cm->ts,
6043 : cm->attr.dimension,
6044 : cm->attr.pointer))
6045 : return false;
6046 : }
6047 : return true;
6048 21267 : default:
6049 21267 : return expr->expr_type == EXPR_CONSTANT;
6050 : }
6051 : }
6052 :
6053 : /* Emit debug info for parameters and unreferenced variables with
6054 : initializers. */
6055 :
6056 : static void
6057 1260040 : gfc_emit_parameter_debug_info (gfc_symbol *sym)
6058 : {
6059 1260040 : tree decl;
6060 :
6061 1260040 : if (sym->attr.flavor != FL_PARAMETER
6062 999451 : && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced))
6063 : return;
6064 :
6065 300205 : if (sym->backend_decl != NULL
6066 277880 : || sym->value == NULL
6067 247875 : || sym->attr.use_assoc
6068 23518 : || sym->attr.dummy
6069 23518 : || sym->attr.result
6070 23518 : || sym->attr.function
6071 23518 : || sym->attr.intrinsic
6072 23518 : || sym->attr.pointer
6073 23508 : || sym->attr.allocatable
6074 23508 : || sym->attr.cray_pointee
6075 23508 : || sym->attr.threadprivate
6076 23507 : || sym->attr.is_bind_c
6077 23507 : || sym->attr.subref_array_pointer
6078 23507 : || sym->attr.assign)
6079 : return;
6080 :
6081 23507 : if (sym->ts.type == BT_CHARACTER)
6082 : {
6083 1348 : gfc_conv_const_charlen (sym->ts.u.cl);
6084 1348 : if (sym->ts.u.cl->backend_decl == NULL
6085 1348 : || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST)
6086 : return;
6087 : }
6088 22159 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp)
6089 : return;
6090 :
6091 23458 : if (sym->as)
6092 : {
6093 2540 : int n;
6094 :
6095 2540 : if (sym->as->type != AS_EXPLICIT)
6096 : return;
6097 5722 : for (n = 0; n < sym->as->rank; n++)
6098 3182 : if (sym->as->lower[n]->expr_type != EXPR_CONSTANT
6099 3182 : || sym->as->upper[n] == NULL
6100 3182 : || sym->as->upper[n]->expr_type != EXPR_CONSTANT)
6101 : return;
6102 : }
6103 :
6104 23458 : if (!check_constant_initializer (sym->value, &sym->ts,
6105 23458 : sym->attr.dimension, false))
6106 : return;
6107 :
6108 23449 : if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension)
6109 : return;
6110 :
6111 : /* Create the decl for the variable or constant. */
6112 46898 : decl = build_decl (input_location,
6113 23449 : sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL,
6114 : gfc_sym_identifier (sym), gfc_sym_type (sym));
6115 23449 : if (sym->attr.flavor == FL_PARAMETER)
6116 23212 : TREE_READONLY (decl) = 1;
6117 23449 : gfc_set_decl_location (decl, &sym->declared_at);
6118 23449 : if (sym->attr.dimension)
6119 2540 : GFC_DECL_PACKED_ARRAY (decl) = 1;
6120 23449 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6121 23449 : TREE_STATIC (decl) = 1;
6122 23449 : TREE_USED (decl) = 1;
6123 23449 : if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL)
6124 2563 : TREE_PUBLIC (decl) = 1;
6125 23449 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
6126 23449 : TREE_TYPE (decl),
6127 23449 : sym->attr.dimension,
6128 : false, false);
6129 23449 : debug_hooks->early_global_decl (decl);
6130 : }
6131 :
6132 :
6133 : static void
6134 6778 : generate_coarray_sym_init (gfc_symbol *sym)
6135 : {
6136 6778 : tree tmp, size, decl, token, desc;
6137 6778 : bool is_lock_type, is_event_type;
6138 6778 : int reg_type;
6139 6778 : gfc_se se;
6140 6778 : symbol_attribute attr;
6141 :
6142 6778 : if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension
6143 404 : || sym->attr.use_assoc || !sym->attr.referenced
6144 400 : || sym->attr.associate_var
6145 349 : || sym->attr.select_type_temporary)
6146 6429 : return;
6147 :
6148 349 : decl = sym->backend_decl;
6149 349 : TREE_USED(decl) = 1;
6150 349 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl)));
6151 :
6152 698 : is_lock_type = sym->ts.type == BT_DERIVED
6153 154 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6154 383 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE;
6155 :
6156 698 : is_event_type = sym->ts.type == BT_DERIVED
6157 154 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6158 383 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE;
6159 :
6160 : /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108
6161 : to make sure the variable is not optimized away. */
6162 349 : DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1;
6163 :
6164 : /* For lock types, we pass the array size as only the library knows the
6165 : size of the variable. */
6166 349 : if (is_lock_type || is_event_type)
6167 34 : size = gfc_index_one_node;
6168 : else
6169 315 : size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl)));
6170 :
6171 : /* Ensure that we do not have size=0 for zero-sized arrays. */
6172 349 : size = fold_build2_loc (input_location, MAX_EXPR, size_type_node,
6173 : fold_convert (size_type_node, size),
6174 : build_int_cst (size_type_node, 1));
6175 :
6176 349 : if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl)))
6177 : {
6178 109 : tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl));
6179 109 : size = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
6180 : fold_convert (size_type_node, tmp), size);
6181 : }
6182 :
6183 349 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE);
6184 1047 : token = gfc_build_addr_expr (ppvoid_type_node,
6185 349 : GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl)));
6186 349 : if (is_lock_type)
6187 29 : reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC;
6188 320 : else if (is_event_type)
6189 : reg_type = GFC_CAF_EVENT_STATIC;
6190 : else
6191 315 : reg_type = GFC_CAF_COARRAY_STATIC;
6192 :
6193 : /* Compile the symbol attribute. */
6194 349 : if (sym->ts.type == BT_CLASS)
6195 : {
6196 0 : attr = CLASS_DATA (sym)->attr;
6197 : /* The pointer attribute is always set on classes, overwrite it with the
6198 : class_pointer attribute, which denotes the pointer for classes. */
6199 0 : attr.pointer = attr.class_pointer;
6200 : }
6201 : else
6202 349 : attr = sym->attr;
6203 349 : gfc_init_se (&se, NULL);
6204 349 : desc = gfc_conv_scalar_to_descriptor (&se, decl, attr);
6205 349 : gfc_add_block_to_block (&caf_init_block, &se.pre);
6206 :
6207 349 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size,
6208 349 : build_int_cst (integer_type_node, reg_type),
6209 : token, gfc_build_addr_expr (pvoid_type_node, desc),
6210 : null_pointer_node, /* stat. */
6211 : null_pointer_node, /* errgmsg. */
6212 : build_zero_cst (size_type_node)); /* errmsg_len. */
6213 349 : gfc_add_expr_to_block (&caf_init_block, tmp);
6214 349 : gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl),
6215 : gfc_conv_descriptor_data_get (desc)));
6216 :
6217 : /* Handle "static" initializer. */
6218 349 : if (sym->value)
6219 : {
6220 110 : if (sym->value->expr_type == EXPR_ARRAY)
6221 : {
6222 12 : gfc_constructor *c, *cnext;
6223 :
6224 : /* Test if the array has more than one element. */
6225 12 : c = gfc_constructor_first (sym->value->value.constructor);
6226 12 : gcc_assert (c); /* Empty constructor should not happen here. */
6227 12 : cnext = gfc_constructor_next (c);
6228 :
6229 12 : if (cnext)
6230 : {
6231 : /* An EXPR_ARRAY with a rank > 1 here has to come from a
6232 : DATA statement. Set its rank here as not to confuse
6233 : the following steps. */
6234 11 : sym->value->rank = 1;
6235 : }
6236 : else
6237 : {
6238 : /* There is only a single value in the constructor, use
6239 : it directly for the assignment. */
6240 1 : gfc_expr *new_expr;
6241 1 : new_expr = gfc_copy_expr (c->expr);
6242 1 : gfc_free_expr (sym->value);
6243 1 : sym->value = new_expr;
6244 : }
6245 : }
6246 :
6247 110 : sym->attr.pointer = 1;
6248 110 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value,
6249 : true, false);
6250 110 : sym->attr.pointer = 0;
6251 110 : gfc_add_expr_to_block (&caf_init_block, tmp);
6252 : }
6253 239 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp)
6254 : {
6255 32 : tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as
6256 : ? sym->as->rank : 0,
6257 : GFC_STRUCTURE_CAF_MODE_IN_COARRAY);
6258 32 : gfc_add_expr_to_block (&caf_init_block, tmp);
6259 : }
6260 : }
6261 :
6262 : struct caf_accessor
6263 : {
6264 : struct caf_accessor *next;
6265 : gfc_expr *hash, *fdecl;
6266 : };
6267 :
6268 : static struct caf_accessor *caf_accessor_head = NULL;
6269 :
6270 : void
6271 1566 : gfc_add_caf_accessor (gfc_expr *h, gfc_expr *f)
6272 : {
6273 1566 : struct caf_accessor *n = XCNEW (struct caf_accessor);
6274 1566 : n->next = caf_accessor_head;
6275 1566 : n->hash = h;
6276 1566 : n->fdecl = f;
6277 1566 : caf_accessor_head = n;
6278 1566 : }
6279 :
6280 : void
6281 468 : create_caf_accessor_register (stmtblock_t *block)
6282 : {
6283 468 : gfc_se se;
6284 468 : tree hash, fdecl;
6285 468 : gfc_init_se (&se, NULL);
6286 1974 : for (struct caf_accessor *curr = caf_accessor_head; curr;)
6287 : {
6288 1506 : gfc_conv_expr (&se, curr->hash);
6289 1506 : hash = se.expr;
6290 1506 : gfc_conv_expr (&se, curr->fdecl);
6291 1506 : fdecl = se.expr;
6292 1506 : TREE_USED (fdecl) = 1;
6293 1506 : TREE_STATIC (fdecl) = 1;
6294 1506 : gcc_assert (FUNCTION_POINTER_TYPE_P (TREE_TYPE (fdecl)));
6295 1506 : gfc_add_expr_to_block (
6296 : block, build_call_expr (gfor_fndecl_caf_register_accessor, 2, hash,
6297 : /*gfc_build_addr_expr (NULL_TREE,*/ fdecl));
6298 1506 : curr = curr->next;
6299 1506 : free (caf_accessor_head);
6300 1506 : caf_accessor_head = curr;
6301 : }
6302 468 : gfc_add_expr_to_block (
6303 : block, build_call_expr (gfor_fndecl_caf_register_accessors_finish, 0));
6304 468 : }
6305 :
6306 : /* Generate constructor function to initialize static, nonallocatable
6307 : coarrays. */
6308 :
6309 : static void
6310 468 : generate_coarray_init (gfc_namespace *ns)
6311 : {
6312 468 : tree fndecl, tmp, decl, save_fn_decl;
6313 :
6314 468 : save_fn_decl = current_function_decl;
6315 468 : push_function_context ();
6316 :
6317 468 : tmp = build_function_type_list (void_type_node, NULL_TREE);
6318 468 : fndecl = build_decl (input_location, FUNCTION_DECL,
6319 : create_tmp_var_name ("_caf_init"), tmp);
6320 :
6321 468 : DECL_STATIC_CONSTRUCTOR (fndecl) = 1;
6322 468 : SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY);
6323 :
6324 468 : decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node);
6325 468 : DECL_ARTIFICIAL (decl) = 1;
6326 468 : DECL_IGNORED_P (decl) = 1;
6327 468 : DECL_CONTEXT (decl) = fndecl;
6328 468 : DECL_RESULT (fndecl) = decl;
6329 :
6330 468 : pushdecl (fndecl);
6331 468 : current_function_decl = fndecl;
6332 468 : announce_function (fndecl);
6333 :
6334 468 : rest_of_decl_compilation (fndecl, 0, 0);
6335 468 : make_decl_rtl (fndecl);
6336 468 : allocate_struct_function (fndecl, false);
6337 :
6338 468 : pushlevel ();
6339 468 : gfc_init_block (&caf_init_block);
6340 :
6341 468 : create_caf_accessor_register (&caf_init_block);
6342 :
6343 468 : gfc_traverse_ns (ns, generate_coarray_sym_init);
6344 :
6345 468 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block);
6346 468 : decl = getdecls ();
6347 :
6348 468 : poplevel (1, 1);
6349 468 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
6350 :
6351 936 : DECL_SAVED_TREE (fndecl)
6352 936 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
6353 936 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
6354 468 : dump_function (TDI_original, fndecl);
6355 :
6356 468 : cfun->function_end_locus = input_location;
6357 468 : set_cfun (NULL);
6358 :
6359 468 : if (decl_function_context (fndecl))
6360 448 : (void) cgraph_node::create (fndecl);
6361 : else
6362 20 : cgraph_node::finalize_function (fndecl, true);
6363 :
6364 468 : pop_function_context ();
6365 468 : current_function_decl = save_fn_decl;
6366 468 : }
6367 :
6368 :
6369 : static void
6370 149319 : create_module_nml_decl (gfc_symbol *sym)
6371 : {
6372 149319 : if (sym->attr.flavor == FL_NAMELIST)
6373 : {
6374 45 : tree decl = generate_namelist_decl (sym);
6375 45 : pushdecl (decl);
6376 45 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
6377 45 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6378 45 : rest_of_decl_compilation (decl, 1, 0);
6379 45 : gfc_module_add_decl (cur_module, decl);
6380 : }
6381 149319 : }
6382 :
6383 : static void
6384 289971 : gfc_handle_omp_declare_variant (gfc_symbol * sym)
6385 : {
6386 289971 : if (sym->attr.external
6387 97046 : && sym->formal_ns
6388 93078 : && sym->formal_ns->omp_declare_variant)
6389 : {
6390 26 : gfc_namespace *ns = gfc_current_ns;
6391 26 : gfc_current_ns = sym->ns;
6392 26 : gfc_get_symbol_decl (sym);
6393 26 : gfc_current_ns = ns;
6394 : }
6395 289971 : }
6396 :
6397 : /* Generate all the required code for module variables. */
6398 :
6399 : void
6400 9471 : gfc_generate_module_vars (gfc_namespace * ns)
6401 : {
6402 9471 : module_namespace = ns;
6403 9471 : cur_module = gfc_find_module (ns->proc_name->name);
6404 :
6405 : /* Check if the frontend left the namespace in a reasonable state. */
6406 9471 : gcc_assert (ns->proc_name && !ns->proc_name->tlink);
6407 :
6408 : /* Generate COMMON blocks. */
6409 9471 : gfc_trans_common (ns);
6410 :
6411 9471 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
6412 :
6413 : /* Create decls for all the module variables. */
6414 9471 : gfc_traverse_ns (ns, gfc_create_module_variable);
6415 9471 : gfc_traverse_ns (ns, create_module_nml_decl);
6416 :
6417 9471 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
6418 20 : generate_coarray_init (ns);
6419 :
6420 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
6421 : especially as some late diagnostic is only done on tree level. */
6422 9471 : if (flag_openmp)
6423 1085 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
6424 :
6425 9471 : cur_module = NULL;
6426 :
6427 9471 : gfc_trans_use_stmts (ns);
6428 9471 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
6429 9471 : }
6430 :
6431 :
6432 : static void
6433 87551 : gfc_generate_contained_functions (gfc_namespace * parent)
6434 : {
6435 87551 : gfc_namespace *ns;
6436 :
6437 : /* We create all the prototypes before generating any code. */
6438 111255 : for (ns = parent->contained; ns; ns = ns->sibling)
6439 : {
6440 : /* Skip namespaces from used modules. */
6441 23704 : if (ns->parent != parent)
6442 0 : continue;
6443 :
6444 23704 : gfc_create_function_decl (ns, false);
6445 : }
6446 :
6447 111255 : for (ns = parent->contained; ns; ns = ns->sibling)
6448 : {
6449 : /* Skip namespaces from used modules. */
6450 23704 : if (ns->parent != parent)
6451 0 : continue;
6452 :
6453 23704 : gfc_generate_function_code (ns);
6454 : }
6455 87551 : }
6456 :
6457 :
6458 : /* Drill down through expressions for the array specification bounds and
6459 : character length calling generate_local_decl for all those variables
6460 : that have not already been declared. */
6461 :
6462 : static void
6463 : generate_local_decl (gfc_symbol *);
6464 :
6465 : /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */
6466 :
6467 : static bool
6468 116371 : expr_decls (gfc_expr *e, gfc_symbol *sym,
6469 : int *f ATTRIBUTE_UNUSED)
6470 : {
6471 116371 : if (e->expr_type != EXPR_VARIABLE
6472 8373 : || sym == e->symtree->n.sym
6473 8360 : || e->symtree->n.sym->mark
6474 746 : || e->symtree->n.sym->ns != sym->ns)
6475 : return false;
6476 :
6477 746 : generate_local_decl (e->symtree->n.sym);
6478 746 : return false;
6479 : }
6480 :
6481 : static void
6482 153954 : generate_expr_decls (gfc_symbol *sym, gfc_expr *e)
6483 : {
6484 0 : gfc_traverse_expr (e, sym, expr_decls, 0);
6485 0 : }
6486 :
6487 :
6488 : /* Check for dependencies in the character length and array spec. */
6489 :
6490 : static void
6491 200349 : generate_dependency_declarations (gfc_symbol *sym)
6492 : {
6493 200349 : int i;
6494 :
6495 200349 : if (sym->ts.type == BT_CHARACTER
6496 17693 : && sym->ts.u.cl
6497 17693 : && sym->ts.u.cl->length
6498 14520 : && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT)
6499 1070 : generate_expr_decls (sym, sym->ts.u.cl->length);
6500 :
6501 200349 : if (sym->as && sym->as->rank)
6502 : {
6503 129626 : for (i = 0; i < sym->as->rank; i++)
6504 : {
6505 76442 : generate_expr_decls (sym, sym->as->lower[i]);
6506 76442 : generate_expr_decls (sym, sym->as->upper[i]);
6507 : }
6508 : }
6509 200349 : }
6510 :
6511 :
6512 : /* Generate decls for all local variables. We do this to ensure correct
6513 : handling of expressions which only appear in the specification of
6514 : other functions. */
6515 :
6516 : static void
6517 1137681 : generate_local_decl (gfc_symbol * sym)
6518 : {
6519 1137681 : if (sym->attr.flavor == FL_VARIABLE)
6520 : {
6521 297832 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
6522 595 : && sym->attr.referenced && !sym->attr.use_assoc)
6523 536 : has_coarray_vars_or_accessors = true;
6524 :
6525 297832 : if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master)
6526 200349 : generate_dependency_declarations (sym);
6527 :
6528 297832 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
6529 : {
6530 2 : if (sym->attr.dummy)
6531 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6532 : "dummy argument", sym->name, &sym->declared_at);
6533 : else
6534 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6535 : "local variable", sym->name, &sym->declared_at);
6536 : }
6537 :
6538 297832 : if (sym->attr.referenced)
6539 262847 : gfc_get_symbol_decl (sym);
6540 :
6541 : /* Warnings for unused dummy arguments. */
6542 34985 : else if (sym->attr.dummy && !sym->attr.in_namelist)
6543 : {
6544 : /* INTENT(out) dummy arguments are likely meant to be set. */
6545 6563 : if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT)
6546 : {
6547 9 : if (sym->ts.type != BT_DERIVED)
6548 6 : gfc_warning (OPT_Wunused_dummy_argument,
6549 : "Dummy argument %qs at %L was declared "
6550 : "INTENT(OUT) but was not set", sym->name,
6551 : &sym->declared_at);
6552 3 : else if (!gfc_has_default_initializer (sym->ts.u.derived)
6553 3 : && !sym->ts.u.derived->attr.zero_comp)
6554 1 : gfc_warning (OPT_Wunused_dummy_argument,
6555 : "Derived-type dummy argument %qs at %L was "
6556 : "declared INTENT(OUT) but was not set and "
6557 : "does not have a default initializer",
6558 : sym->name, &sym->declared_at);
6559 9 : if (sym->backend_decl != NULL_TREE)
6560 9 : suppress_warning (sym->backend_decl);
6561 : }
6562 6554 : else if (warn_unused_dummy_argument)
6563 : {
6564 10 : if (!sym->attr.artificial)
6565 4 : gfc_warning (OPT_Wunused_dummy_argument,
6566 : "Unused dummy argument %qs at %L", sym->name,
6567 : &sym->declared_at);
6568 :
6569 10 : if (sym->backend_decl != NULL_TREE)
6570 4 : suppress_warning (sym->backend_decl);
6571 : }
6572 : }
6573 :
6574 : /* Warn for unused variables, but not if they're inside a common
6575 : block or a namelist. */
6576 28422 : else if (warn_unused_variable
6577 43 : && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist))
6578 : {
6579 43 : if (sym->attr.use_only)
6580 : {
6581 1 : gfc_warning (OPT_Wunused_variable,
6582 : "Unused module variable %qs which has been "
6583 : "explicitly imported at %L", sym->name,
6584 : &sym->declared_at);
6585 1 : if (sym->backend_decl != NULL_TREE)
6586 0 : suppress_warning (sym->backend_decl);
6587 : }
6588 42 : else if (!sym->attr.use_assoc)
6589 : {
6590 : /* Corner case: the symbol may be an entry point. At this point,
6591 : it may appear to be an unused variable. Suppress warning. */
6592 8 : bool enter = false;
6593 8 : gfc_entry_list *el;
6594 :
6595 14 : for (el = sym->ns->entries; el; el=el->next)
6596 6 : if (strcmp(sym->name, el->sym->name) == 0)
6597 2 : enter = true;
6598 :
6599 8 : if (!enter)
6600 6 : gfc_warning (OPT_Wunused_variable,
6601 : "Unused variable %qs declared at %L",
6602 : sym->name, &sym->declared_at);
6603 8 : if (sym->backend_decl != NULL_TREE)
6604 0 : suppress_warning (sym->backend_decl);
6605 : }
6606 : }
6607 :
6608 : /* For variable length CHARACTER parameters, the PARM_DECL already
6609 : references the length variable, so force gfc_get_symbol_decl
6610 : even when not referenced. If optimize > 0, it will be optimized
6611 : away anyway. But do this only after emitting -Wunused-parameter
6612 : warning if requested. */
6613 297832 : if (sym->attr.dummy && !sym->attr.referenced
6614 6563 : && sym->ts.type == BT_CHARACTER
6615 814 : && sym->ts.u.cl->backend_decl != NULL
6616 811 : && VAR_P (sym->ts.u.cl->backend_decl))
6617 : {
6618 6 : sym->attr.referenced = 1;
6619 6 : gfc_get_symbol_decl (sym);
6620 : }
6621 :
6622 : /* INTENT(out) dummy arguments and result variables with allocatable
6623 : components are reset by default and need to be set referenced to
6624 : generate the code for nullification and automatic lengths. */
6625 297832 : if (!sym->attr.referenced
6626 34979 : && sym->ts.type == BT_DERIVED
6627 21227 : && sym->ts.u.derived->attr.alloc_comp
6628 1745 : && !sym->attr.pointer
6629 1744 : && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT)
6630 1708 : ||
6631 1708 : (sym->attr.result && sym != sym->result)))
6632 : {
6633 36 : sym->attr.referenced = 1;
6634 36 : gfc_get_symbol_decl (sym);
6635 : }
6636 :
6637 : /* Check for dependencies in the array specification and string
6638 : length, adding the necessary declarations to the function. We
6639 : mark the symbol now, as well as in traverse_ns, to prevent
6640 : getting stuck in a circular dependency. */
6641 297832 : sym->mark = 1;
6642 : }
6643 839849 : else if (sym->attr.flavor == FL_PARAMETER)
6644 : {
6645 220375 : if (warn_unused_parameter
6646 524 : && !sym->attr.referenced)
6647 : {
6648 467 : if (!sym->attr.use_assoc)
6649 4 : gfc_warning (OPT_Wunused_parameter,
6650 : "Unused parameter %qs declared at %L", sym->name,
6651 : &sym->declared_at);
6652 463 : else if (sym->attr.use_only)
6653 1 : gfc_warning (OPT_Wunused_parameter,
6654 : "Unused parameter %qs which has been explicitly "
6655 : "imported at %L", sym->name, &sym->declared_at);
6656 : }
6657 :
6658 220375 : if (sym->ns && sym->ns->construct_entities)
6659 : {
6660 : /* Construction of the intrinsic modules within a BLOCK
6661 : construct, where ONLY and RENAMED entities are included,
6662 : seems to be bogus. This is a workaround that can be removed
6663 : if someone ever takes on the task to creating full-fledge
6664 : modules. See PR 69455. */
6665 122 : if (sym->attr.referenced
6666 79 : && sym->from_intmod != INTMOD_ISO_C_BINDING
6667 54 : && sym->from_intmod != INTMOD_ISO_FORTRAN_ENV)
6668 26 : gfc_get_symbol_decl (sym);
6669 122 : sym->mark = 1;
6670 : }
6671 : }
6672 619474 : else if (sym->attr.flavor == FL_PROCEDURE)
6673 : {
6674 : /* TODO: move to the appropriate place in resolve.cc. */
6675 516338 : if (warn_return_type > 0
6676 4996 : && sym->attr.function
6677 3700 : && sym->result
6678 3491 : && sym != sym->result
6679 444 : && !sym->result->attr.referenced
6680 36 : && !sym->attr.use_assoc
6681 23 : && sym->attr.if_source != IFSRC_IFBODY)
6682 : {
6683 23 : gfc_warning (OPT_Wreturn_type,
6684 : "Return value %qs of function %qs declared at "
6685 : "%L not set", sym->result->name, sym->name,
6686 : &sym->result->declared_at);
6687 :
6688 : /* Prevents "Unused variable" warning for RESULT variables. */
6689 23 : sym->result->mark = 1;
6690 : }
6691 : }
6692 :
6693 1137681 : if (sym->attr.dummy == 1)
6694 : {
6695 : /* The tree type for scalar character dummy arguments of BIND(C)
6696 : procedures, if they are passed by value, should be unsigned char.
6697 : The value attribute implies the dummy is a scalar. */
6698 104586 : if (sym->attr.value == 1 && sym->backend_decl != NULL
6699 8938 : && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop
6700 254 : && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c)
6701 : {
6702 : /* We used to modify the tree here. Now it is done earlier in
6703 : the front-end, so we only check it here to avoid regressions. */
6704 242 : gcc_assert (TREE_CODE (TREE_TYPE (sym->backend_decl)) == INTEGER_TYPE);
6705 242 : gcc_assert (TYPE_UNSIGNED (TREE_TYPE (sym->backend_decl)) == 1);
6706 242 : gcc_assert (TYPE_PRECISION (TREE_TYPE (sym->backend_decl)) == CHAR_TYPE_SIZE);
6707 242 : gcc_assert (DECL_BY_REFERENCE (sym->backend_decl) == 0);
6708 : }
6709 :
6710 : /* Unused procedure passed as dummy argument. */
6711 104586 : if (sym->attr.flavor == FL_PROCEDURE)
6712 : {
6713 943 : if (!sym->attr.referenced && !sym->attr.artificial)
6714 : {
6715 58 : if (warn_unused_dummy_argument)
6716 2 : gfc_warning (OPT_Wunused_dummy_argument,
6717 : "Unused dummy argument %qs at %L", sym->name,
6718 : &sym->declared_at);
6719 : }
6720 :
6721 : /* Silence bogus "unused parameter" warnings from the
6722 : middle end. */
6723 943 : if (sym->backend_decl != NULL_TREE)
6724 943 : suppress_warning (sym->backend_decl);
6725 : }
6726 : }
6727 :
6728 : /* Make sure we convert the types of the derived types from iso_c_binding
6729 : into (void *). */
6730 1137681 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
6731 82820 : && sym->ts.type == BT_DERIVED)
6732 3447 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
6733 1137681 : }
6734 :
6735 :
6736 : static void
6737 1137688 : generate_local_nml_decl (gfc_symbol * sym)
6738 : {
6739 1137688 : if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc)
6740 : {
6741 738 : tree decl = generate_namelist_decl (sym);
6742 738 : pushdecl (decl);
6743 : }
6744 1137688 : }
6745 :
6746 :
6747 : static void
6748 102012 : generate_local_vars (gfc_namespace * ns)
6749 : {
6750 102012 : gfc_traverse_ns (ns, generate_local_decl);
6751 102012 : gfc_traverse_ns (ns, generate_local_nml_decl);
6752 102012 : }
6753 :
6754 :
6755 : /* Generate a switch statement to jump to the correct entry point. Also
6756 : creates the label decls for the entry points. */
6757 :
6758 : static tree
6759 667 : gfc_trans_entry_master_switch (gfc_entry_list * el)
6760 : {
6761 667 : stmtblock_t block;
6762 667 : tree label;
6763 667 : tree tmp;
6764 667 : tree val;
6765 :
6766 667 : gfc_init_block (&block);
6767 2746 : for (; el; el = el->next)
6768 : {
6769 : /* Add the case label. */
6770 1412 : label = gfc_build_label_decl (NULL_TREE);
6771 1412 : val = build_int_cst (gfc_array_index_type, el->id);
6772 1412 : tmp = build_case_label (val, NULL_TREE, label);
6773 1412 : gfc_add_expr_to_block (&block, tmp);
6774 :
6775 : /* And jump to the actual entry point. */
6776 1412 : label = gfc_build_label_decl (NULL_TREE);
6777 1412 : tmp = build1_v (GOTO_EXPR, label);
6778 1412 : gfc_add_expr_to_block (&block, tmp);
6779 :
6780 : /* Save the label decl. */
6781 1412 : el->label = label;
6782 : }
6783 667 : tmp = gfc_finish_block (&block);
6784 : /* The first argument selects the entry point. */
6785 667 : val = DECL_ARGUMENTS (current_function_decl);
6786 667 : tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp);
6787 667 : return tmp;
6788 : }
6789 :
6790 :
6791 : /* Add code to string lengths of actual arguments passed to a function against
6792 : the expected lengths of the dummy arguments. */
6793 :
6794 : static void
6795 2907 : add_argument_checking (stmtblock_t *block, gfc_symbol *sym)
6796 : {
6797 2907 : gfc_formal_arglist *formal;
6798 :
6799 5761 : for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next)
6800 2854 : if (formal->sym && formal->sym->ts.type == BT_CHARACTER
6801 604 : && !formal->sym->ts.deferred)
6802 : {
6803 554 : enum tree_code comparison;
6804 554 : tree cond;
6805 554 : tree argname;
6806 554 : gfc_symbol *fsym;
6807 554 : gfc_charlen *cl;
6808 554 : const char *message;
6809 :
6810 554 : fsym = formal->sym;
6811 554 : cl = fsym->ts.u.cl;
6812 :
6813 554 : gcc_assert (cl);
6814 554 : gcc_assert (cl->passed_length != NULL_TREE);
6815 554 : gcc_assert (cl->backend_decl != NULL_TREE);
6816 :
6817 : /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the
6818 : string lengths must match exactly. Otherwise, it is only required
6819 : that the actual string length is *at least* the expected one.
6820 : Sequence association allows for a mismatch of the string length
6821 : if the actual argument is (part of) an array, but only if the
6822 : dummy argument is an array. (See "Sequence association" in
6823 : Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */
6824 554 : if (fsym->attr.pointer || fsym->attr.allocatable
6825 446 : || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE
6826 33 : || fsym->as->type == AS_ASSUMED_RANK)))
6827 : {
6828 196 : comparison = NE_EXPR;
6829 196 : message = _("Actual string length does not match the declared one"
6830 : " for dummy argument '%s' (%ld/%ld)");
6831 : }
6832 358 : else if ((fsym->as && fsym->as->rank != 0) || fsym->attr.artificial)
6833 33 : continue;
6834 : else
6835 : {
6836 325 : comparison = LT_EXPR;
6837 325 : message = _("Actual string length is shorter than the declared one"
6838 : " for dummy argument '%s' (%ld/%ld)");
6839 : }
6840 :
6841 : /* Build the condition. For optional arguments, an actual length
6842 : of 0 is also acceptable if the associated string is NULL, which
6843 : means the argument was not passed. */
6844 521 : cond = fold_build2_loc (input_location, comparison, logical_type_node,
6845 : cl->passed_length, cl->backend_decl);
6846 521 : if (fsym->attr.optional)
6847 : {
6848 45 : tree not_absent;
6849 45 : tree not_0length;
6850 45 : tree absent_failed;
6851 :
6852 45 : not_0length = fold_build2_loc (input_location, NE_EXPR,
6853 : logical_type_node,
6854 : cl->passed_length,
6855 : build_zero_cst
6856 45 : (TREE_TYPE (cl->passed_length)));
6857 : /* The symbol needs to be referenced for gfc_get_symbol_decl. */
6858 45 : fsym->attr.referenced = 1;
6859 45 : not_absent = gfc_conv_expr_present (fsym);
6860 :
6861 45 : absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR,
6862 : logical_type_node, not_0length,
6863 : not_absent);
6864 :
6865 45 : cond = fold_build2_loc (input_location, TRUTH_AND_EXPR,
6866 : logical_type_node, cond, absent_failed);
6867 : }
6868 :
6869 : /* Build the runtime check. */
6870 521 : argname = gfc_build_cstring_const (fsym->name);
6871 521 : argname = gfc_build_addr_expr (pchar_type_node, argname);
6872 521 : gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at,
6873 : message, argname,
6874 : fold_convert (long_integer_type_node,
6875 : cl->passed_length),
6876 : fold_convert (long_integer_type_node,
6877 : cl->backend_decl));
6878 : }
6879 2907 : }
6880 :
6881 :
6882 : static void
6883 26786 : create_main_function (tree fndecl)
6884 : {
6885 26786 : tree old_context;
6886 26786 : tree ftn_main;
6887 26786 : tree tmp, decl, result_decl, argc, argv, typelist, arglist;
6888 26786 : stmtblock_t body;
6889 :
6890 26786 : old_context = current_function_decl;
6891 :
6892 26786 : if (old_context)
6893 : {
6894 0 : push_function_context ();
6895 0 : saved_parent_function_decls = saved_function_decls;
6896 0 : saved_function_decls = NULL_TREE;
6897 : }
6898 :
6899 : /* main() function must be declared with global scope. */
6900 26786 : gcc_assert (current_function_decl == NULL_TREE);
6901 :
6902 : /* Declare the function. */
6903 26786 : tmp = build_function_type_list (integer_type_node, integer_type_node,
6904 : build_pointer_type (pchar_type_node),
6905 : NULL_TREE);
6906 26786 : main_identifier_node = get_identifier ("main");
6907 26786 : ftn_main = build_decl (input_location, FUNCTION_DECL,
6908 : main_identifier_node, tmp);
6909 26786 : DECL_EXTERNAL (ftn_main) = 0;
6910 26786 : TREE_PUBLIC (ftn_main) = 1;
6911 26786 : TREE_STATIC (ftn_main) = 1;
6912 26786 : DECL_ATTRIBUTES (ftn_main)
6913 26786 : = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE);
6914 :
6915 : /* Setup the result declaration (for "return 0"). */
6916 26786 : result_decl = build_decl (input_location,
6917 : RESULT_DECL, NULL_TREE, integer_type_node);
6918 26786 : DECL_ARTIFICIAL (result_decl) = 1;
6919 26786 : DECL_IGNORED_P (result_decl) = 1;
6920 26786 : DECL_CONTEXT (result_decl) = ftn_main;
6921 26786 : DECL_RESULT (ftn_main) = result_decl;
6922 :
6923 26786 : pushdecl (ftn_main);
6924 :
6925 : /* Get the arguments. */
6926 :
6927 26786 : arglist = NULL_TREE;
6928 26786 : typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main));
6929 :
6930 26786 : tmp = TREE_VALUE (typelist);
6931 26786 : argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp);
6932 26786 : DECL_CONTEXT (argc) = ftn_main;
6933 26786 : DECL_ARG_TYPE (argc) = TREE_VALUE (typelist);
6934 26786 : TREE_READONLY (argc) = 1;
6935 26786 : gfc_finish_decl (argc);
6936 26786 : arglist = chainon (arglist, argc);
6937 :
6938 26786 : typelist = TREE_CHAIN (typelist);
6939 26786 : tmp = TREE_VALUE (typelist);
6940 26786 : argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp);
6941 26786 : DECL_CONTEXT (argv) = ftn_main;
6942 26786 : DECL_ARG_TYPE (argv) = TREE_VALUE (typelist);
6943 26786 : TREE_READONLY (argv) = 1;
6944 26786 : DECL_BY_REFERENCE (argv) = 1;
6945 26786 : gfc_finish_decl (argv);
6946 26786 : arglist = chainon (arglist, argv);
6947 :
6948 26786 : DECL_ARGUMENTS (ftn_main) = arglist;
6949 26786 : current_function_decl = ftn_main;
6950 26786 : announce_function (ftn_main);
6951 :
6952 26786 : rest_of_decl_compilation (ftn_main, 1, 0);
6953 26786 : make_decl_rtl (ftn_main);
6954 26786 : allocate_struct_function (ftn_main, false);
6955 26786 : pushlevel ();
6956 :
6957 26786 : gfc_init_block (&body);
6958 :
6959 : /* Call some libgfortran initialization routines, call then MAIN__(). */
6960 :
6961 : /* Call _gfortran_caf_init (*argc, ***argv). */
6962 26786 : if (flag_coarray == GFC_FCOARRAY_LIB)
6963 : {
6964 409 : tree pint_type, pppchar_type;
6965 409 : pint_type = build_pointer_type (integer_type_node);
6966 409 : pppchar_type
6967 409 : = build_pointer_type (build_pointer_type (pchar_type_node));
6968 :
6969 409 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2,
6970 : gfc_build_addr_expr (pint_type, argc),
6971 : gfc_build_addr_expr (pppchar_type, argv));
6972 409 : gfc_add_expr_to_block (&body, tmp);
6973 : }
6974 :
6975 : /* Call _gfortran_set_args (argc, argv). */
6976 26786 : TREE_USED (argc) = 1;
6977 26786 : TREE_USED (argv) = 1;
6978 26786 : tmp = build_call_expr_loc (input_location,
6979 : gfor_fndecl_set_args, 2, argc, argv);
6980 26786 : gfc_add_expr_to_block (&body, tmp);
6981 :
6982 : /* Add a call to set_options to set up the runtime library Fortran
6983 : language standard parameters. */
6984 26786 : {
6985 26786 : tree array_type, array, var;
6986 26786 : vec<constructor_elt, va_gc> *v = NULL;
6987 26786 : static const int noptions = 7;
6988 :
6989 : /* Passing a new option to the library requires three modifications:
6990 : + add it to the tree_cons list below
6991 : + change the noptions variable above
6992 : + modify the library (runtime/compile_options.c)! */
6993 :
6994 26786 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6995 : build_int_cst (integer_type_node,
6996 : gfc_option.warn_std));
6997 26786 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6998 : build_int_cst (integer_type_node,
6999 : gfc_option.allow_std));
7000 26786 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7001 : build_int_cst (integer_type_node, pedantic));
7002 26786 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7003 : build_int_cst (integer_type_node, flag_backtrace));
7004 26786 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7005 : build_int_cst (integer_type_node, flag_sign_zero));
7006 26786 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7007 : build_int_cst (integer_type_node,
7008 : (gfc_option.rtcheck
7009 : & GFC_RTCHECK_BOUNDS)));
7010 26786 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
7011 : build_int_cst (integer_type_node,
7012 : gfc_option.fpe_summary));
7013 :
7014 26786 : array_type = build_array_type_nelts (integer_type_node, noptions);
7015 26786 : array = build_constructor (array_type, v);
7016 26786 : TREE_CONSTANT (array) = 1;
7017 26786 : TREE_STATIC (array) = 1;
7018 :
7019 : /* Create a static variable to hold the jump table. */
7020 26786 : var = build_decl (input_location, VAR_DECL,
7021 : create_tmp_var_name ("options"), array_type);
7022 26786 : DECL_ARTIFICIAL (var) = 1;
7023 26786 : DECL_IGNORED_P (var) = 1;
7024 26786 : TREE_CONSTANT (var) = 1;
7025 26786 : TREE_STATIC (var) = 1;
7026 26786 : TREE_READONLY (var) = 1;
7027 26786 : DECL_INITIAL (var) = array;
7028 26786 : pushdecl (var);
7029 26786 : var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var);
7030 :
7031 26786 : tmp = build_call_expr_loc (input_location,
7032 : gfor_fndecl_set_options, 2,
7033 : build_int_cst (integer_type_node, noptions), var);
7034 26786 : gfc_add_expr_to_block (&body, tmp);
7035 : }
7036 :
7037 : /* If -ffpe-trap option was provided, add a call to set_fpe so that
7038 : the library will raise a FPE when needed. */
7039 26786 : if (gfc_option.fpe != 0)
7040 : {
7041 6 : tmp = build_call_expr_loc (input_location,
7042 : gfor_fndecl_set_fpe, 1,
7043 : build_int_cst (integer_type_node,
7044 6 : gfc_option.fpe));
7045 6 : gfc_add_expr_to_block (&body, tmp);
7046 : }
7047 :
7048 : /* If this is the main program and an -fconvert option was provided,
7049 : add a call to set_convert. */
7050 :
7051 26786 : if (flag_convert != GFC_FLAG_CONVERT_NATIVE)
7052 : {
7053 12 : tmp = build_call_expr_loc (input_location,
7054 : gfor_fndecl_set_convert, 1,
7055 12 : build_int_cst (integer_type_node, flag_convert));
7056 12 : gfc_add_expr_to_block (&body, tmp);
7057 : }
7058 :
7059 : /* If this is the main program and an -frecord-marker option was provided,
7060 : add a call to set_record_marker. */
7061 :
7062 26786 : if (flag_record_marker != 0)
7063 : {
7064 18 : tmp = build_call_expr_loc (input_location,
7065 : gfor_fndecl_set_record_marker, 1,
7066 : build_int_cst (integer_type_node,
7067 18 : flag_record_marker));
7068 18 : gfc_add_expr_to_block (&body, tmp);
7069 : }
7070 :
7071 26786 : if (flag_max_subrecord_length != 0)
7072 : {
7073 6 : tmp = build_call_expr_loc (input_location,
7074 : gfor_fndecl_set_max_subrecord_length, 1,
7075 : build_int_cst (integer_type_node,
7076 6 : flag_max_subrecord_length));
7077 6 : gfc_add_expr_to_block (&body, tmp);
7078 : }
7079 :
7080 : /* Call MAIN__(). */
7081 26786 : tmp = build_call_expr_loc (input_location,
7082 : fndecl, 0);
7083 26786 : gfc_add_expr_to_block (&body, tmp);
7084 :
7085 : /* Mark MAIN__ as used. */
7086 26786 : TREE_USED (fndecl) = 1;
7087 :
7088 : /* Coarray: Call _gfortran_caf_finalize(void). */
7089 26786 : if (flag_coarray == GFC_FCOARRAY_LIB)
7090 : {
7091 409 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0);
7092 409 : gfc_add_expr_to_block (&body, tmp);
7093 : }
7094 :
7095 : /* "return 0". */
7096 26786 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node,
7097 26786 : DECL_RESULT (ftn_main),
7098 : integer_zero_node);
7099 26786 : tmp = build1_v (RETURN_EXPR, tmp);
7100 26786 : gfc_add_expr_to_block (&body, tmp);
7101 :
7102 :
7103 26786 : DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body);
7104 26786 : decl = getdecls ();
7105 :
7106 : /* Finish off this function and send it for code generation. */
7107 26786 : poplevel (1, 1);
7108 26786 : BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main;
7109 :
7110 53572 : DECL_SAVED_TREE (ftn_main)
7111 53572 : = fold_build3_loc (DECL_SOURCE_LOCATION (ftn_main), BIND_EXPR,
7112 26786 : void_type_node, decl, DECL_SAVED_TREE (ftn_main),
7113 26786 : DECL_INITIAL (ftn_main));
7114 :
7115 : /* Output the GENERIC tree. */
7116 26786 : dump_function (TDI_original, ftn_main);
7117 :
7118 26786 : cgraph_node::finalize_function (ftn_main, true);
7119 :
7120 26786 : if (old_context)
7121 : {
7122 0 : pop_function_context ();
7123 0 : saved_function_decls = saved_parent_function_decls;
7124 : }
7125 26786 : current_function_decl = old_context;
7126 26786 : }
7127 :
7128 :
7129 : /* Generate an appropriate return-statement for a procedure. */
7130 :
7131 : tree
7132 15621 : gfc_generate_return (void)
7133 : {
7134 15621 : gfc_symbol* sym;
7135 15621 : tree result;
7136 15621 : tree fndecl;
7137 :
7138 15621 : sym = current_procedure_symbol;
7139 15621 : fndecl = sym->backend_decl;
7140 :
7141 15621 : if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node)
7142 : result = NULL_TREE;
7143 : else
7144 : {
7145 13298 : result = get_proc_result (sym);
7146 :
7147 : /* Set the return value to the dummy result variable. The
7148 : types may be different for scalar default REAL functions
7149 : with -ff2c, therefore we have to convert. */
7150 13298 : if (result != NULL_TREE)
7151 : {
7152 13287 : result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result);
7153 26574 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7154 13287 : TREE_TYPE (result), DECL_RESULT (fndecl),
7155 : result);
7156 : }
7157 : else
7158 : {
7159 : /* If the function does not have a result variable, result is
7160 : NULL_TREE, and a 'return' is generated without a variable.
7161 : The following generates a 'return __result_XXX' where XXX is
7162 : the function name. */
7163 11 : if (sym == sym->result && sym->attr.function && !flag_f2c)
7164 : {
7165 8 : result = gfc_get_fake_result_decl (sym, 0);
7166 16 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7167 8 : TREE_TYPE (result),
7168 8 : DECL_RESULT (fndecl), result);
7169 : }
7170 : }
7171 : }
7172 :
7173 15621 : return build1_v (RETURN_EXPR, result);
7174 : }
7175 :
7176 :
7177 : static void
7178 1105708 : is_from_ieee_module (gfc_symbol *sym)
7179 : {
7180 1105708 : if (sym->from_intmod == INTMOD_IEEE_FEATURES
7181 : || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS
7182 1105708 : || sym->from_intmod == INTMOD_IEEE_ARITHMETIC)
7183 121658 : seen_ieee_symbol = 1;
7184 1105708 : }
7185 :
7186 :
7187 : static int
7188 87551 : is_ieee_module_used (gfc_namespace *ns)
7189 : {
7190 87551 : seen_ieee_symbol = 0;
7191 0 : gfc_traverse_ns (ns, is_from_ieee_module);
7192 87551 : return seen_ieee_symbol;
7193 : }
7194 :
7195 :
7196 : static gfc_omp_clauses *module_oacc_clauses;
7197 :
7198 :
7199 : static void
7200 146 : add_clause (gfc_symbol *sym, gfc_omp_map_op map_op)
7201 : {
7202 146 : gfc_omp_namelist *n;
7203 :
7204 146 : n = gfc_get_omp_namelist ();
7205 146 : n->sym = sym;
7206 146 : n->where = sym->declared_at;
7207 146 : n->u.map.op = map_op;
7208 :
7209 146 : if (!module_oacc_clauses)
7210 124 : module_oacc_clauses = gfc_get_omp_clauses ();
7211 :
7212 146 : if (module_oacc_clauses->lists[OMP_LIST_MAP])
7213 22 : n->next = module_oacc_clauses->lists[OMP_LIST_MAP];
7214 :
7215 146 : module_oacc_clauses->lists[OMP_LIST_MAP] = n;
7216 146 : }
7217 :
7218 :
7219 : static void
7220 1137688 : find_module_oacc_declare_clauses (gfc_symbol *sym)
7221 : {
7222 1137688 : if (sym->attr.use_assoc)
7223 : {
7224 541970 : gfc_omp_map_op map_op;
7225 :
7226 541970 : if (sym->attr.oacc_declare_create)
7227 541970 : map_op = OMP_MAP_FORCE_ALLOC;
7228 :
7229 541970 : if (sym->attr.oacc_declare_copyin)
7230 2 : map_op = OMP_MAP_FORCE_TO;
7231 :
7232 541970 : if (sym->attr.oacc_declare_deviceptr)
7233 0 : map_op = OMP_MAP_FORCE_DEVICEPTR;
7234 :
7235 541970 : if (sym->attr.oacc_declare_device_resident)
7236 34 : map_op = OMP_MAP_DEVICE_RESIDENT;
7237 :
7238 541970 : if (sym->attr.oacc_declare_create
7239 541860 : || sym->attr.oacc_declare_copyin
7240 541858 : || sym->attr.oacc_declare_deviceptr
7241 541858 : || sym->attr.oacc_declare_device_resident)
7242 : {
7243 146 : sym->attr.referenced = 1;
7244 146 : add_clause (sym, map_op);
7245 : }
7246 : }
7247 1137688 : }
7248 :
7249 :
7250 : void
7251 102012 : finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block)
7252 : {
7253 102012 : gfc_code *code;
7254 102012 : gfc_oacc_declare *oc;
7255 102012 : locus where;
7256 102012 : gfc_omp_clauses *omp_clauses = NULL;
7257 102012 : gfc_omp_namelist *n, *p;
7258 102012 : module_oacc_clauses = NULL;
7259 :
7260 102012 : gfc_locus_from_location (&where, input_location);
7261 102012 : gfc_traverse_ns (ns, find_module_oacc_declare_clauses);
7262 :
7263 102012 : if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM)
7264 : {
7265 45 : gfc_oacc_declare *new_oc;
7266 :
7267 45 : new_oc = gfc_get_oacc_declare ();
7268 45 : new_oc->next = ns->oacc_declare;
7269 45 : new_oc->clauses = module_oacc_clauses;
7270 :
7271 45 : ns->oacc_declare = new_oc;
7272 : }
7273 :
7274 102012 : if (!ns->oacc_declare)
7275 : return;
7276 :
7277 190 : for (oc = ns->oacc_declare; oc; oc = oc->next)
7278 : {
7279 101 : if (oc->module_var)
7280 0 : continue;
7281 :
7282 101 : if (block)
7283 2 : gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed "
7284 : "in BLOCK construct", &oc->loc);
7285 :
7286 :
7287 101 : if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP])
7288 : {
7289 88 : if (omp_clauses == NULL)
7290 : {
7291 76 : omp_clauses = oc->clauses;
7292 76 : continue;
7293 : }
7294 :
7295 48 : for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next)
7296 : ;
7297 :
7298 12 : gcc_assert (p->next == NULL);
7299 :
7300 12 : p->next = omp_clauses->lists[OMP_LIST_MAP];
7301 12 : omp_clauses = oc->clauses;
7302 : }
7303 : }
7304 :
7305 89 : if (!omp_clauses)
7306 : return;
7307 :
7308 212 : for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next)
7309 : {
7310 136 : switch (n->u.map.op)
7311 : {
7312 27 : case OMP_MAP_DEVICE_RESIDENT:
7313 27 : n->u.map.op = OMP_MAP_FORCE_ALLOC;
7314 27 : break;
7315 :
7316 : default:
7317 : break;
7318 : }
7319 : }
7320 :
7321 76 : code = XCNEW (gfc_code);
7322 76 : code->op = EXEC_OACC_DECLARE;
7323 76 : code->loc = where;
7324 :
7325 76 : code->ext.oacc_declare = gfc_get_oacc_declare ();
7326 76 : code->ext.oacc_declare->clauses = omp_clauses;
7327 :
7328 76 : code->block = XCNEW (gfc_code);
7329 76 : code->block->op = EXEC_OACC_DECLARE;
7330 76 : code->block->loc = where;
7331 :
7332 76 : if (ns->code)
7333 73 : code->block->next = ns->code;
7334 :
7335 76 : ns->code = code;
7336 :
7337 76 : return;
7338 : }
7339 :
7340 : static void
7341 1820 : gfc_conv_cfi_to_gfc (stmtblock_t *init, stmtblock_t *finally,
7342 : tree cfi_desc, tree gfc_desc, gfc_symbol *sym)
7343 : {
7344 1820 : stmtblock_t block;
7345 1820 : gfc_init_block (&block);
7346 1820 : tree cfi = build_fold_indirect_ref_loc (input_location, cfi_desc);
7347 1820 : tree idx, etype, tmp, tmp2, size_var = NULL_TREE, rank = NULL_TREE;
7348 1820 : bool do_copy_inout = false;
7349 :
7350 : /* When allocatable + intent out, free the cfi descriptor. */
7351 1820 : if (sym->attr.allocatable && sym->attr.intent == INTENT_OUT)
7352 : {
7353 54 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7354 54 : tree call = builtin_decl_explicit (BUILT_IN_FREE);
7355 54 : call = build_call_expr_loc (input_location, call, 1, tmp);
7356 54 : gfc_add_expr_to_block (&block, fold_convert (void_type_node, call));
7357 54 : gfc_add_modify (&block, tmp,
7358 54 : fold_convert (TREE_TYPE (tmp), null_pointer_node));
7359 : }
7360 :
7361 : /* -fcheck=bound: Do version, rank, attribute, type and is-NULL checks. */
7362 1820 : if (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
7363 : {
7364 654 : char *msg;
7365 654 : tree tmp3;
7366 654 : msg = xasprintf ("Unexpected version %%d (expected %d) in CFI descriptor "
7367 : "passed to dummy argument %s", CFI_VERSION, sym->name);
7368 654 : tmp2 = gfc_get_cfi_desc_version (cfi);
7369 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node, tmp2,
7370 654 : build_int_cst (TREE_TYPE (tmp2), CFI_VERSION));
7371 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7372 : msg, tmp2);
7373 654 : free (msg);
7374 :
7375 : /* Rank check; however, for character(len=*), assumed/explicit-size arrays
7376 : are permitted to differ in rank according to the Fortran rules. */
7377 654 : if (sym->as && sym->as->type != AS_ASSUMED_SIZE
7378 546 : && sym->as->type != AS_EXPLICIT)
7379 : {
7380 438 : if (sym->as->rank != -1)
7381 222 : msg = xasprintf ("Invalid rank %%d (expected %d) in CFI descriptor "
7382 : "passed to dummy argument %s", sym->as->rank,
7383 : sym->name);
7384 : else
7385 216 : msg = xasprintf ("Invalid rank %%d (expected 0..%d) in CFI "
7386 : "descriptor passed to dummy argument %s",
7387 : CFI_MAX_RANK, sym->name);
7388 :
7389 438 : tmp3 = tmp2 = tmp = gfc_get_cfi_desc_rank (cfi);
7390 438 : if (sym->as->rank != -1)
7391 222 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7392 : tmp, build_int_cst (signed_char_type_node,
7393 222 : sym->as->rank));
7394 : else
7395 : {
7396 216 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node,
7397 216 : tmp, build_zero_cst (TREE_TYPE (tmp)));
7398 216 : tmp2 = fold_build2_loc (input_location, GT_EXPR,
7399 : boolean_type_node, tmp2,
7400 216 : build_int_cst (TREE_TYPE (tmp2),
7401 : CFI_MAX_RANK));
7402 216 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7403 : boolean_type_node, tmp, tmp2);
7404 : }
7405 438 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7406 : msg, tmp3);
7407 438 : free (msg);
7408 : }
7409 :
7410 654 : tmp3 = tmp = gfc_get_cfi_desc_attribute (cfi);
7411 654 : if (sym->attr.allocatable || sym->attr.pointer)
7412 : {
7413 6 : int attr = (sym->attr.pointer ? CFI_attribute_pointer
7414 : : CFI_attribute_allocatable);
7415 12 : msg = xasprintf ("Invalid attribute %%d (expected %d) in CFI "
7416 : "descriptor passed to dummy argument %s with %s "
7417 : "attribute", attr, sym->name,
7418 : sym->attr.pointer ? "pointer" : "allocatable");
7419 6 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7420 6 : tmp, build_int_cst (TREE_TYPE (tmp), attr));
7421 6 : }
7422 : else
7423 : {
7424 648 : int amin = MIN (CFI_attribute_pointer,
7425 : MIN (CFI_attribute_allocatable, CFI_attribute_other));
7426 648 : int amax = MAX (CFI_attribute_pointer,
7427 : MAX (CFI_attribute_allocatable, CFI_attribute_other));
7428 648 : msg = xasprintf ("Invalid attribute %%d (expected %d..%d) in CFI "
7429 : "descriptor passed to nonallocatable, nonpointer "
7430 : "dummy argument %s", amin, amax, sym->name);
7431 648 : tmp2 = tmp;
7432 648 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node, tmp,
7433 648 : build_int_cst (TREE_TYPE (tmp), amin));
7434 648 : tmp2 = fold_build2_loc (input_location, GT_EXPR, boolean_type_node, tmp2,
7435 648 : build_int_cst (TREE_TYPE (tmp2), amax));
7436 648 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7437 : boolean_type_node, tmp, tmp2);
7438 648 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7439 : msg, tmp3);
7440 648 : free (msg);
7441 648 : msg = xasprintf ("Invalid unallocatated/unassociated CFI "
7442 : "descriptor passed to nonallocatable, nonpointer "
7443 : "dummy argument %s", sym->name);
7444 648 : tmp3 = tmp = gfc_get_cfi_desc_base_addr (cfi),
7445 648 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7446 : tmp, null_pointer_node);
7447 : }
7448 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7449 : msg, tmp3);
7450 654 : free (msg);
7451 :
7452 654 : if (sym->ts.type != BT_ASSUMED)
7453 : {
7454 654 : int type = CFI_type_other;
7455 654 : if (sym->ts.f90_type == BT_VOID)
7456 : {
7457 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7458 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7459 : }
7460 : else
7461 654 : switch (sym->ts.type)
7462 : {
7463 6 : case BT_INTEGER:
7464 6 : case BT_LOGICAL:
7465 6 : case BT_REAL:
7466 6 : case BT_COMPLEX:
7467 6 : type = CFI_type_from_type_kind (sym->ts.type, sym->ts.kind);
7468 6 : break;
7469 648 : case BT_CHARACTER:
7470 648 : type = CFI_type_from_type_kind (CFI_type_Character,
7471 : sym->ts.kind);
7472 648 : break;
7473 0 : case BT_DERIVED:
7474 0 : type = CFI_type_struct;
7475 0 : break;
7476 0 : case BT_VOID:
7477 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7478 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7479 : break;
7480 :
7481 0 : case BT_UNSIGNED:
7482 0 : gfc_internal_error ("Unsigned not yet implemented");
7483 :
7484 0 : case BT_ASSUMED:
7485 0 : case BT_CLASS:
7486 0 : case BT_PROCEDURE:
7487 0 : case BT_HOLLERITH:
7488 0 : case BT_UNION:
7489 0 : case BT_BOZ:
7490 0 : case BT_UNKNOWN:
7491 0 : gcc_unreachable ();
7492 : }
7493 654 : msg = xasprintf ("Unexpected type %%d (expected %d) in CFI descriptor"
7494 : " passed to dummy argument %s", type, sym->name);
7495 654 : tmp2 = tmp = gfc_get_cfi_desc_type (cfi);
7496 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7497 654 : tmp, build_int_cst (TREE_TYPE (tmp), type));
7498 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7499 : msg, tmp2);
7500 654 : free (msg);
7501 : }
7502 : }
7503 :
7504 1820 : if (!sym->attr.referenced)
7505 73 : goto done;
7506 :
7507 : /* Set string length for len=* and len=:, otherwise, it is already set. */
7508 1747 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
7509 : {
7510 647 : tmp = fold_convert (gfc_array_index_type,
7511 : gfc_get_cfi_desc_elem_len (cfi));
7512 647 : if (sym->ts.kind != 1)
7513 197 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7514 : gfc_array_index_type, tmp,
7515 : build_int_cst (gfc_charlen_type_node,
7516 197 : sym->ts.kind));
7517 647 : gfc_add_modify (&block, sym->ts.u.cl->backend_decl, tmp);
7518 : }
7519 :
7520 1747 : if (sym->ts.type == BT_CHARACTER
7521 1020 : && !INTEGER_CST_P (sym->ts.u.cl->backend_decl))
7522 : {
7523 804 : gfc_conv_string_length (sym->ts.u.cl, NULL, &block);
7524 804 : gfc_trans_vla_type_sizes (sym, &block);
7525 : }
7526 :
7527 : /* gfc->data = cfi->base_addr - or for scalars: gfc = cfi->base_addr.
7528 : assumed-size/explicit-size arrays end up here for character(len=*)
7529 : only. */
7530 1747 : if (!sym->attr.dimension || !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7531 : {
7532 418 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7533 418 : gfc_add_modify (&block, gfc_desc,
7534 418 : fold_convert (TREE_TYPE (gfc_desc), tmp));
7535 418 : if (!sym->attr.dimension)
7536 164 : goto done;
7537 : }
7538 :
7539 1583 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7540 : {
7541 : /* gfc->dtype = ... (from declaration, not from cfi). */
7542 1329 : etype = gfc_get_element_type (TREE_TYPE (gfc_desc));
7543 1329 : gfc_conv_descriptor_dtype_set (&block, gfc_desc,
7544 1329 : gfc_get_dtype_rank_type (sym->as->rank,
7545 : etype));
7546 : /* gfc->data = cfi->base_addr. */
7547 1329 : gfc_conv_descriptor_data_set (&block, gfc_desc,
7548 : gfc_get_cfi_desc_base_addr (cfi));
7549 : }
7550 :
7551 1583 : if (sym->ts.type == BT_ASSUMED)
7552 : {
7553 : /* For type(*), take elem_len + dtype.type from the actual argument. */
7554 19 : gfc_conv_descriptor_elem_len_set (&block, gfc_desc,
7555 : gfc_get_cfi_desc_elem_len (cfi));
7556 19 : tree cond;
7557 19 : tree ctype = gfc_get_cfi_desc_type (cfi);
7558 19 : ctype = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (ctype),
7559 19 : ctype, build_int_cst (TREE_TYPE (ctype),
7560 : CFI_type_mask));
7561 :
7562 : /* if (CFI_type_cptr) BT_VOID else BT_UNKNOWN */
7563 : /* Note: BT_VOID is could also be CFI_type_funcptr, but assume c_ptr. */
7564 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7565 19 : build_int_cst (TREE_TYPE (ctype), CFI_type_cptr));
7566 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, BT_VOID);
7567 19 : tmp2 = gfc_conv_descriptor_type_set (gfc_desc, BT_UNKNOWN);
7568 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7569 : tmp, tmp2);
7570 : /* if (CFI_type_struct) BT_DERIVED else < tmp2 > */
7571 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7572 19 : build_int_cst (TREE_TYPE (ctype),
7573 : CFI_type_struct));
7574 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, BT_DERIVED);
7575 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7576 : tmp, tmp2);
7577 : /* if (CFI_type_Character) BT_CHARACTER else < tmp2 > */
7578 : /* Note: this is kind=1, CFI_type_ucs4_char is handled in the 'else if'
7579 : before (see below, as generated bottom up). */
7580 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7581 19 : build_int_cst (TREE_TYPE (ctype),
7582 : CFI_type_Character));
7583 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, BT_CHARACTER);
7584 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7585 : tmp, tmp2);
7586 : /* if (CFI_type_ucs4_char) BT_CHARACTER else < tmp2 > */
7587 : /* Note: gfc->elem_len = cfi->elem_len/4. */
7588 : /* However, assuming that CFI_type_ucs4_char cannot be recovered, leave
7589 : gfc->elem_len == cfi->elem_len, which helps with operations which use
7590 : sizeof() in Fortran and cfi->elem_len in C. */
7591 19 : tmp = gfc_get_cfi_desc_type (cfi);
7592 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, tmp,
7593 19 : build_int_cst (TREE_TYPE (tmp),
7594 : CFI_type_ucs4_char));
7595 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, BT_CHARACTER);
7596 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7597 : tmp, tmp2);
7598 : /* if (CFI_type_Complex) BT_COMPLEX + cfi->elem_len/2 else < tmp2 > */
7599 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7600 19 : build_int_cst (TREE_TYPE (ctype),
7601 : CFI_type_Complex));
7602 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, BT_COMPLEX);
7603 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7604 : tmp, tmp2);
7605 : /* if (CFI_type_Integer || CFI_type_Logical || CFI_type_Real)
7606 : ctype else <tmp2> */
7607 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7608 19 : build_int_cst (TREE_TYPE (ctype),
7609 : CFI_type_Integer));
7610 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7611 19 : build_int_cst (TREE_TYPE (ctype),
7612 : CFI_type_Logical));
7613 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7614 : cond, tmp);
7615 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7616 19 : build_int_cst (TREE_TYPE (ctype),
7617 : CFI_type_Real));
7618 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7619 : cond, tmp);
7620 19 : tmp = gfc_conv_descriptor_type_set (gfc_desc, ctype);
7621 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7622 : tmp, tmp2);
7623 19 : gfc_add_expr_to_block (&block, tmp2);
7624 : }
7625 :
7626 1583 : if (sym->as->rank < 0)
7627 : {
7628 : /* Set gfc->dtype.rank, if assumed-rank. */
7629 587 : rank = fold_convert_loc (input_location, gfc_array_dim_rank_type,
7630 : gfc_get_cfi_desc_rank (cfi));
7631 587 : gfc_conv_descriptor_rank_set (&block, gfc_desc, rank);
7632 : }
7633 996 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7634 : /* In that case, the CFI rank and the declared rank can differ. */
7635 254 : rank = fold_convert_loc (input_location, gfc_array_dim_rank_type,
7636 : gfc_get_cfi_desc_rank (cfi));
7637 : else
7638 742 : rank = gfc_rank_cst[sym->as->rank];
7639 :
7640 : /* With bind(C), the standard requires that both Fortran callers and callees
7641 : handle noncontiguous arrays passed to an dummy with 'contiguous' attribute
7642 : and with character(len=*) + assumed-size/explicit-size arrays.
7643 : cf. Fortran 2018, 18.3.6, paragraph 5 (and for the caller: para. 6). */
7644 1583 : if ((sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length
7645 550 : && (sym->as->type == AS_ASSUMED_SIZE || sym->as->type == AS_EXPLICIT))
7646 1329 : || sym->attr.contiguous)
7647 : {
7648 517 : do_copy_inout = true;
7649 517 : gcc_assert (!sym->attr.pointer);
7650 517 : stmtblock_t block2;
7651 517 : tree data;
7652 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7653 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7654 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7655 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7656 : else
7657 : data = gfc_desc;
7658 :
7659 : /* Is copy-in/out needed? */
7660 : /* do_copyin = rank != 0 && !assumed-size */
7661 517 : tree cond_var = gfc_create_var (boolean_type_node, "do_copyin");
7662 517 : tree cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7663 517 : rank, build_zero_cst (TREE_TYPE (rank)));
7664 : /* dim[rank-1].extent != -1 -> assumed size*/
7665 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (rank),
7666 517 : rank, build_int_cst (TREE_TYPE (rank), 1));
7667 517 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7668 : gfc_get_cfi_dim_extent (cfi, tmp),
7669 : build_int_cst (gfc_array_index_type, -1));
7670 517 : cond = fold_build2_loc (input_location, TRUTH_ANDIF_EXPR,
7671 : boolean_type_node, cond, tmp);
7672 517 : gfc_add_modify (&block, cond_var, cond);
7673 : /* if (do_copyin) do_copyin = ... || ... || ... */
7674 517 : gfc_init_block (&block2);
7675 : /* dim[0].sm != elem_len */
7676 517 : tmp = fold_convert (gfc_array_index_type,
7677 : gfc_get_cfi_desc_elem_len (cfi));
7678 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7679 : gfc_get_cfi_dim_sm (cfi, gfc_index_zero_node),
7680 : tmp);
7681 517 : gfc_add_modify (&block2, cond_var, cond);
7682 :
7683 : /* for (i = 1; i < rank; ++i)
7684 : cond &&= dim[i].sm != (dv->dim[i - 1].sm * dv->dim[i - 1].extent) */
7685 517 : idx = gfc_create_var (gfc_array_dim_rank_type, "idx");
7686 517 : stmtblock_t loop_body;
7687 517 : gfc_init_block (&loop_body);
7688 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7689 517 : idx, build_int_cst (TREE_TYPE (idx), 1));
7690 517 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, tmp);
7691 517 : tmp = gfc_get_cfi_dim_extent (cfi, tmp);
7692 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp),
7693 : tmp2, tmp);
7694 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7695 : gfc_get_cfi_dim_sm (cfi, idx), tmp);
7696 517 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7697 : cond_var, cond);
7698 517 : gfc_add_modify (&loop_body, cond_var, cond);
7699 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7700 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7701 : gfc_finish_block (&loop_body));
7702 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7703 : build_empty_stmt (input_location));
7704 517 : gfc_add_expr_to_block (&block, tmp);
7705 :
7706 : /* Copy-in body. */
7707 517 : gfc_init_block (&block2);
7708 : /* size = dim[0].extent; for (i = 1; i < rank; ++i) size *= dim[i].extent */
7709 517 : size_var = gfc_create_var (size_type_node, "size");
7710 517 : tmp = fold_convert (size_type_node,
7711 : gfc_get_cfi_dim_extent (cfi, gfc_index_zero_node));
7712 517 : gfc_add_modify (&block2, size_var, tmp);
7713 :
7714 517 : gfc_init_block (&loop_body);
7715 517 : tmp = fold_convert (size_type_node,
7716 : gfc_get_cfi_dim_extent (cfi, idx));
7717 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7718 : size_var, fold_convert (size_type_node, tmp));
7719 517 : gfc_add_modify (&loop_body, size_var, tmp);
7720 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7721 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7722 : gfc_finish_block (&loop_body));
7723 : /* data = malloc (size * elem_len) */
7724 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7725 : size_var, gfc_get_cfi_desc_elem_len (cfi));
7726 517 : tree call = builtin_decl_explicit (BUILT_IN_MALLOC);
7727 517 : call = build_call_expr_loc (input_location, call, 1, tmp);
7728 517 : gfc_add_modify (&block2, data, fold_convert (TREE_TYPE (data), call));
7729 :
7730 : /* Copy the data:
7731 : for (idx = 0; idx < size; ++idx)
7732 : {
7733 : shift = 0;
7734 : tmpidx = idx
7735 : for (d = 0; d < rank; ++d)
7736 : {
7737 : shift += (tmpidx % extent[d]) * sm[d]
7738 : tmpidx = tmpidx / extend[d]
7739 : }
7740 : memcpy (lhs + idx*elem_len, rhs + shift, elem_len)
7741 : } .*/
7742 517 : idx = gfc_create_var (size_type_node, "arrayidx");
7743 517 : gfc_init_block (&loop_body);
7744 517 : tree shift = gfc_create_var (size_type_node, "shift");
7745 517 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7746 517 : gfc_add_modify (&loop_body, shift, build_zero_cst (TREE_TYPE (shift)));
7747 517 : gfc_add_modify (&loop_body, tmpidx, idx);
7748 517 : stmtblock_t inner_loop;
7749 517 : gfc_init_block (&inner_loop);
7750 517 : tree dim = gfc_create_var (gfc_array_dim_rank_type, "dim");
7751 : /* shift += (tmpidx % extent[d]) * sm[d] */
7752 517 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7753 : size_type_node, tmpidx,
7754 : fold_convert (size_type_node,
7755 : gfc_get_cfi_dim_extent (cfi, dim)));
7756 517 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7757 : size_type_node, tmp,
7758 : fold_convert (size_type_node,
7759 : gfc_get_cfi_dim_sm (cfi, dim)));
7760 517 : gfc_add_modify (&inner_loop, shift,
7761 : fold_build2_loc (input_location, PLUS_EXPR,
7762 : size_type_node, shift, tmp));
7763 : /* tmpidx = tmpidx / extend[d] */
7764 517 : tmp = fold_convert (size_type_node, gfc_get_cfi_dim_extent (cfi, dim));
7765 517 : gfc_add_modify (&inner_loop, tmpidx,
7766 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7767 : size_type_node, tmpidx, tmp));
7768 517 : gfc_simple_for_loop (&loop_body, dim, gfc_rank_cst[0], rank, LT_EXPR,
7769 : gfc_rank_cst[1], gfc_finish_block (&inner_loop));
7770 : /* Assign. */
7771 517 : tmp = fold_convert (pchar_type_node, gfc_get_cfi_desc_base_addr (cfi));
7772 517 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
7773 517 : tree lhs;
7774 : /* memcpy (lhs + idx*elem_len, rhs + shift, elem_len) */
7775 517 : tree elem_len;
7776 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7777 263 : elem_len = gfc_conv_descriptor_elem_len_get (gfc_desc);
7778 : else
7779 254 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
7780 517 : lhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7781 : elem_len, idx);
7782 517 : lhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR, pchar_type_node,
7783 : fold_convert (pchar_type_node, data), lhs);
7784 517 : tmp = fold_convert (pvoid_type_node, tmp);
7785 517 : lhs = fold_convert (pvoid_type_node, lhs);
7786 517 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
7787 517 : call = build_call_expr_loc (input_location, call, 3, lhs, tmp, elem_len);
7788 517 : gfc_add_expr_to_block (&loop_body, fold_convert (void_type_node, call));
7789 1034 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7790 517 : size_var, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7791 : gfc_finish_block (&loop_body));
7792 : /* if (cond) { block2 } */
7793 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7794 : build_empty_stmt (input_location));
7795 517 : gfc_add_expr_to_block (&block, tmp);
7796 : }
7797 :
7798 1583 : if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7799 : {
7800 254 : tree offset, type;
7801 254 : type = TREE_TYPE (gfc_desc);
7802 254 : gfc_trans_array_bounds (type, sym, &offset, &block);
7803 254 : if (VAR_P (GFC_TYPE_ARRAY_OFFSET (type)))
7804 144 : gfc_add_modify (&block, GFC_TYPE_ARRAY_OFFSET (type), offset);
7805 254 : goto done;
7806 : }
7807 :
7808 : /* If cfi->data != NULL. */
7809 1329 : stmtblock_t block2;
7810 1329 : gfc_init_block (&block2);
7811 :
7812 : /* if do_copy_inout: gfc->dspan = gfc->dtype.elem_len
7813 : We use gfc instead of cfi on the RHS as this might be a constant. */
7814 1329 : tmp = fold_convert (gfc_array_index_type,
7815 : gfc_conv_descriptor_elem_len_get (gfc_desc));
7816 1329 : if (!do_copy_inout)
7817 : {
7818 : /* gfc->dspan = ((cfi->dim[0].sm % gfc->elem_len)
7819 : ? cfi->dim[0].sm : gfc->elem_len). */
7820 1066 : tree cond;
7821 1066 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, gfc_rank_cst[0]);
7822 1066 : cond = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7823 : gfc_array_index_type, tmp2, tmp);
7824 1066 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7825 : cond, gfc_index_zero_node);
7826 1066 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7827 : tmp2, tmp);
7828 : }
7829 1329 : gfc_conv_descriptor_span_set (&block2, gfc_desc, tmp);
7830 :
7831 : /* Calculate offset + set lbound, ubound and stride. */
7832 1329 : gfc_conv_descriptor_offset_set (&block2, gfc_desc, gfc_index_zero_node);
7833 1329 : if (sym->as->rank > 0 && !sym->attr.pointer && !sym->attr.allocatable)
7834 1274 : for (int i = 0; i < sym->as->rank; ++i)
7835 : {
7836 718 : gfc_se se;
7837 718 : gfc_init_se (&se, NULL );
7838 718 : if (sym->as->lower[i])
7839 : {
7840 718 : gfc_conv_expr (&se, sym->as->lower[i]);
7841 718 : tmp = se.expr;
7842 : }
7843 : else
7844 0 : tmp = gfc_index_one_node;
7845 718 : gfc_add_block_to_block (&block2, &se.pre);
7846 718 : gfc_conv_descriptor_lbound_set (&block2, gfc_desc, gfc_rank_cst[i],
7847 : tmp);
7848 718 : gfc_add_block_to_block (&block2, &se.post);
7849 : }
7850 :
7851 : /* Loop: for (i = 0; i < rank; ++i). */
7852 1329 : idx = gfc_create_var (gfc_array_dim_rank_type, "idx");
7853 :
7854 : /* Loop body. */
7855 1329 : stmtblock_t loop_body;
7856 1329 : gfc_init_block (&loop_body);
7857 : /* gfc->dim[i].lbound = ... */
7858 1329 : if (sym->attr.pointer || sym->attr.allocatable)
7859 : {
7860 276 : tmp = gfc_get_cfi_dim_lbound (cfi, idx);
7861 276 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx, tmp);
7862 : }
7863 1053 : else if (sym->as->rank < 0)
7864 497 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx,
7865 : gfc_index_one_node);
7866 :
7867 : /* gfc->dim[i].ubound = gfc->dim[i].lbound + cfi->dim[i].extent - 1. */
7868 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7869 : gfc_conv_descriptor_lbound_get (gfc_desc, idx),
7870 : gfc_index_one_node);
7871 1329 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type,
7872 : gfc_get_cfi_dim_extent (cfi, idx), tmp);
7873 1329 : gfc_conv_descriptor_ubound_set (&loop_body, gfc_desc, idx, tmp);
7874 :
7875 1329 : if (do_copy_inout)
7876 : {
7877 : /* gfc->dim[i].stride
7878 : = idx == 0 ? 1 : gfc->dim[i-1].stride * cfi->dim[i-1].extent */
7879 263 : tree cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7880 263 : idx, build_zero_cst (TREE_TYPE (idx)));
7881 263 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7882 263 : idx, build_int_cst (TREE_TYPE (idx), 1));
7883 263 : tree tmp2 = gfc_get_cfi_dim_extent (cfi, tmp);
7884 263 : tmp = gfc_conv_descriptor_stride_get (gfc_desc, tmp);
7885 263 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp2),
7886 : tmp2, tmp);
7887 263 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7888 : gfc_index_one_node, tmp);
7889 : }
7890 : else
7891 : {
7892 : /* gfc->dim[i].stride = cfi->dim[i].sm / cfi>elem_len */
7893 1066 : tmp = gfc_get_cfi_dim_sm (cfi, idx);
7894 1066 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7895 : gfc_array_index_type, tmp,
7896 : fold_convert (gfc_array_index_type,
7897 : gfc_get_cfi_desc_elem_len (cfi)));
7898 : }
7899 1329 : gfc_conv_descriptor_stride_set (&loop_body, gfc_desc, idx, tmp);
7900 : /* gfc->offset -= gfc->dim[i].stride * gfc->dim[i].lbound. */
7901 1329 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
7902 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
7903 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
7904 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7905 : gfc_conv_descriptor_offset_get (gfc_desc), tmp);
7906 1329 : gfc_conv_descriptor_offset_set (&loop_body, gfc_desc, tmp);
7907 :
7908 : /* Generate loop. */
7909 2658 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7910 1329 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7911 : gfc_finish_block (&loop_body));
7912 1329 : if (sym->attr.allocatable || sym->attr.pointer)
7913 : {
7914 276 : tmp = gfc_get_cfi_desc_base_addr (cfi),
7915 276 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7916 : tmp, null_pointer_node);
7917 276 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
7918 : build_empty_stmt (input_location));
7919 276 : gfc_add_expr_to_block (&block, tmp);
7920 : }
7921 : else
7922 1053 : gfc_add_block_to_block (&block, &block2);
7923 :
7924 1820 : done:
7925 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
7926 1820 : if (sym->attr.optional)
7927 : {
7928 317 : tree present = fold_build2_loc (input_location, NE_EXPR,
7929 : boolean_type_node, cfi_desc,
7930 : null_pointer_node);
7931 317 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7932 : sym->backend_decl,
7933 317 : fold_convert (TREE_TYPE (sym->backend_decl),
7934 : null_pointer_node));
7935 317 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block), tmp);
7936 317 : gfc_add_expr_to_block (init, tmp);
7937 : }
7938 : else
7939 1503 : gfc_add_block_to_block (init, &block);
7940 :
7941 1820 : if (!sym->attr.referenced)
7942 985 : return;
7943 :
7944 : /* If pointer not changed, nothing to be done (except copy out) */
7945 1747 : if (!do_copy_inout && ((!sym->attr.pointer && !sym->attr.allocatable)
7946 381 : || sym->attr.intent == INTENT_IN))
7947 : return;
7948 :
7949 835 : gfc_init_block (&block);
7950 :
7951 : /* For bind(C), Fortran does not permit mixing 'pointer' with 'contiguous' (or
7952 : len=*). Thus, when copy out is needed, the bounds of the descriptor remain
7953 : unchanged. */
7954 835 : if (do_copy_inout)
7955 : {
7956 517 : tree data, call;
7957 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7958 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7959 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7960 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7961 : else
7962 : data = gfc_desc;
7963 517 : gfc_init_block (&block2);
7964 517 : if (sym->attr.intent != INTENT_IN)
7965 : {
7966 : /* First, create the inner copy-out loop.
7967 : for (idx = 0; idx < size; ++idx)
7968 : {
7969 : shift = 0;
7970 : tmpidx = idx
7971 : for (d = 0; d < rank; ++d)
7972 : {
7973 : shift += (tmpidx % extent[d]) * sm[d]
7974 : tmpidx = tmpidx / extend[d]
7975 : }
7976 : memcpy (lhs + shift, rhs + idx*elem_len, elem_len)
7977 : } .*/
7978 292 : stmtblock_t loop_body;
7979 292 : idx = gfc_create_var (size_type_node, "arrayidx");
7980 292 : gfc_init_block (&loop_body);
7981 292 : tree shift = gfc_create_var (size_type_node, "shift");
7982 292 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7983 292 : gfc_add_modify (&loop_body, shift,
7984 292 : build_zero_cst (TREE_TYPE (shift)));
7985 292 : gfc_add_modify (&loop_body, tmpidx, idx);
7986 292 : stmtblock_t inner_loop;
7987 292 : gfc_init_block (&inner_loop);
7988 292 : tree dim = gfc_create_var (gfc_array_dim_rank_type, "dim");
7989 : /* shift += (tmpidx % extent[d]) * sm[d] */
7990 292 : tmp = fold_convert (size_type_node,
7991 : gfc_get_cfi_dim_extent (cfi, dim));
7992 292 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7993 : size_type_node, tmpidx, tmp);
7994 292 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7995 : size_type_node, tmp,
7996 : fold_convert (size_type_node,
7997 : gfc_get_cfi_dim_sm (cfi, dim)));
7998 292 : gfc_add_modify (&inner_loop, shift,
7999 : fold_build2_loc (input_location, PLUS_EXPR,
8000 : size_type_node, shift, tmp));
8001 : /* tmpidx = tmpidx / extend[d] */
8002 292 : tmp = fold_convert (size_type_node,
8003 : gfc_get_cfi_dim_extent (cfi, dim));
8004 292 : gfc_add_modify (&inner_loop, tmpidx,
8005 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
8006 : size_type_node, tmpidx, tmp));
8007 292 : gfc_simple_for_loop (&loop_body, dim, gfc_rank_cst[0], rank, LT_EXPR,
8008 : gfc_rank_cst[1], gfc_finish_block (&inner_loop));
8009 : /* Assign. */
8010 292 : tree rhs;
8011 292 : tmp = fold_convert (pchar_type_node,
8012 : gfc_get_cfi_desc_base_addr (cfi));
8013 292 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
8014 : /* memcpy (lhs + shift, rhs + idx*elem_len, elem_len) */
8015 292 : tree elem_len;
8016 292 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
8017 153 : elem_len = gfc_conv_descriptor_elem_len_get (gfc_desc);
8018 : else
8019 139 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
8020 292 : rhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
8021 : elem_len, idx);
8022 292 : rhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR,
8023 : pchar_type_node,
8024 : fold_convert (pchar_type_node, data), rhs);
8025 292 : tmp = fold_convert (pvoid_type_node, tmp);
8026 292 : rhs = fold_convert (pvoid_type_node, rhs);
8027 292 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
8028 292 : call = build_call_expr_loc (input_location, call, 3, tmp, rhs,
8029 : elem_len);
8030 292 : gfc_add_expr_to_block (&loop_body,
8031 : fold_convert (void_type_node, call));
8032 584 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
8033 : size_var, LT_EXPR,
8034 292 : build_int_cst (TREE_TYPE (idx), 1),
8035 : gfc_finish_block (&loop_body));
8036 : }
8037 517 : call = builtin_decl_explicit (BUILT_IN_FREE);
8038 517 : call = build_call_expr_loc (input_location, call, 1, data);
8039 517 : gfc_add_expr_to_block (&block2, call);
8040 :
8041 : /* if (cfi->base_addr != gfc->data) { copy out; free(var) }; return */
8042 517 : tree tmp2 = gfc_get_cfi_desc_base_addr (cfi);
8043 517 : tmp2 = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
8044 517 : tmp2, fold_convert (TREE_TYPE (tmp2), data));
8045 517 : tmp = build3_v (COND_EXPR, tmp2, gfc_finish_block (&block2),
8046 : build_empty_stmt (input_location));
8047 517 : gfc_add_expr_to_block (&block, tmp);
8048 517 : goto done_finally;
8049 : }
8050 :
8051 : /* Update pointer + array data data on exit. */
8052 318 : tmp = gfc_get_cfi_desc_base_addr (cfi);
8053 318 : tmp2 = (!sym->attr.dimension
8054 318 : ? gfc_desc : gfc_conv_descriptor_data_get (gfc_desc));
8055 318 : gfc_add_modify (&block, tmp, fold_convert (TREE_TYPE (tmp), tmp2));
8056 :
8057 : /* Set string length for len=:, only. */
8058 318 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
8059 : {
8060 60 : tmp2 = gfc_get_cfi_desc_elem_len (cfi);
8061 60 : tmp = fold_convert (TREE_TYPE (tmp2), sym->ts.u.cl->backend_decl);
8062 60 : if (sym->ts.kind != 1)
8063 48 : tmp = fold_build2_loc (input_location, MULT_EXPR,
8064 24 : TREE_TYPE (tmp2), tmp,
8065 24 : build_int_cst (TREE_TYPE (tmp2), sym->ts.kind));
8066 60 : gfc_add_modify (&block, tmp2, tmp);
8067 : }
8068 :
8069 318 : if (!sym->attr.dimension)
8070 102 : goto done_finally;
8071 :
8072 216 : gfc_init_block (&block2);
8073 :
8074 : /* Loop: for (i = 0; i < rank; ++i). */
8075 216 : idx = gfc_create_var (gfc_array_dim_rank_type, "idx");
8076 :
8077 : /* Loop body. */
8078 216 : gfc_init_block (&loop_body);
8079 : /* cfi->dim[i].lower_bound = gfc->dim[i].lbound */
8080 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_lbound (cfi, idx),
8081 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
8082 : /* cfi->dim[i].extent = gfc->dim[i].ubound - gfc->dim[i].lbound + 1. */
8083 216 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
8084 : gfc_conv_descriptor_ubound_get (gfc_desc, idx),
8085 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
8086 216 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type, tmp,
8087 : gfc_index_one_node);
8088 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_extent (cfi, idx), tmp);
8089 : /* d->dim[n].sm = gfc->dim[i].stride * gfc->span); */
8090 216 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
8091 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
8092 : gfc_conv_descriptor_span_get (gfc_desc));
8093 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_sm (cfi, idx), tmp);
8094 :
8095 : /* Generate loop. */
8096 216 : gfc_simple_for_loop (&block2, idx, gfc_rank_cst[0], rank, LT_EXPR,
8097 : gfc_rank_cst[1], gfc_finish_block (&loop_body));
8098 : /* if (gfc->data != NULL) { block2 }. */
8099 216 : tmp = gfc_get_cfi_desc_base_addr (cfi),
8100 216 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
8101 : tmp, null_pointer_node);
8102 216 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
8103 : build_empty_stmt (input_location));
8104 216 : gfc_add_expr_to_block (&block, tmp);
8105 :
8106 835 : done_finally:
8107 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
8108 835 : if (sym->attr.optional)
8109 : {
8110 180 : tree present = fold_build2_loc (input_location, NE_EXPR,
8111 : boolean_type_node, cfi_desc,
8112 : null_pointer_node);
8113 180 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block),
8114 : build_empty_stmt (input_location));
8115 180 : gfc_add_expr_to_block (finally, tmp);
8116 : }
8117 : else
8118 655 : gfc_add_block_to_block (finally, &block);
8119 : }
8120 :
8121 :
8122 : static void
8123 235 : emit_not_set_warning (gfc_symbol *sym)
8124 : {
8125 235 : if (warn_return_type > 0 && sym == sym->result)
8126 17 : gfc_warning (OPT_Wreturn_type,
8127 : "Return value of function %qs at %L not set",
8128 : sym->name, &sym->declared_at);
8129 235 : if (warn_return_type > 0)
8130 22 : suppress_warning (sym->backend_decl);
8131 235 : }
8132 :
8133 :
8134 : /* Generate code for a function. */
8135 :
8136 : void
8137 87551 : gfc_generate_function_code (gfc_namespace * ns)
8138 : {
8139 87551 : tree fndecl;
8140 87551 : tree old_context;
8141 87551 : tree decl;
8142 87551 : tree tmp;
8143 87551 : tree fpstate = NULL_TREE;
8144 87551 : stmtblock_t init, cleanup, outer_block;
8145 87551 : stmtblock_t body;
8146 87551 : gfc_wrapped_block try_block;
8147 87551 : tree recurcheckvar = NULL_TREE;
8148 87551 : gfc_symbol *sym;
8149 87551 : gfc_symbol *previous_procedure_symbol;
8150 87551 : int rank, ieee;
8151 87551 : bool is_recursive;
8152 :
8153 87551 : sym = ns->proc_name;
8154 87551 : previous_procedure_symbol = current_procedure_symbol;
8155 87551 : current_procedure_symbol = sym;
8156 :
8157 : /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get
8158 : lost or worse. */
8159 87551 : sym->tlink = sym;
8160 :
8161 : /* Create the declaration for functions with global scope. */
8162 87551 : if (!sym->backend_decl)
8163 36193 : gfc_create_function_decl (ns, false);
8164 :
8165 87551 : fndecl = sym->backend_decl;
8166 87551 : old_context = current_function_decl;
8167 :
8168 87551 : if (old_context)
8169 : {
8170 23704 : push_function_context ();
8171 23704 : saved_parent_function_decls = saved_function_decls;
8172 23704 : saved_function_decls = NULL_TREE;
8173 : }
8174 :
8175 87551 : trans_function_start (sym);
8176 87551 : gfc_current_locus = sym->declared_at;
8177 :
8178 87551 : gfc_init_block (&init);
8179 87551 : gfc_init_block (&cleanup);
8180 87551 : gfc_init_block (&outer_block);
8181 :
8182 87551 : if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER)
8183 : {
8184 : /* Copy length backend_decls to all entry point result
8185 : symbols. */
8186 74 : gfc_entry_list *el;
8187 74 : tree backend_decl;
8188 :
8189 74 : gfc_conv_const_charlen (ns->proc_name->ts.u.cl);
8190 74 : backend_decl = ns->proc_name->result->ts.u.cl->backend_decl;
8191 258 : for (el = ns->entries; el; el = el->next)
8192 184 : el->sym->result->ts.u.cl->backend_decl = backend_decl;
8193 : }
8194 :
8195 : /* Translate COMMON blocks. */
8196 87551 : gfc_trans_common (ns);
8197 :
8198 : /* Null the parent fake result declaration if this namespace is
8199 : a module function or an external procedures. */
8200 87551 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8201 60672 : || ns->parent == NULL)
8202 63847 : parent_fake_result_decl = NULL_TREE;
8203 :
8204 : /* For BIND(C):
8205 : - deallocate intent-out allocatable dummy arguments.
8206 : - Create GFC variable which will later be populated by convert_CFI_desc */
8207 87551 : if (sym->attr.is_bind_c)
8208 1903 : for (gfc_formal_arglist *formal = gfc_sym_get_dummy_args (sym);
8209 5923 : formal; formal = formal->next)
8210 : {
8211 4020 : gfc_symbol *fsym = formal->sym;
8212 4020 : if (!is_CFI_desc (fsym, NULL))
8213 2200 : continue;
8214 1820 : if (!fsym->attr.referenced)
8215 : {
8216 73 : gfc_conv_cfi_to_gfc (&init, &cleanup, fsym->backend_decl,
8217 : NULL_TREE, fsym);
8218 73 : continue;
8219 : }
8220 : /* Let's now create a local GFI descriptor. Afterwards:
8221 : desc is the local descriptor,
8222 : desc_p is a pointer to it
8223 : and stored in sym->backend_decl
8224 : GFC_DECL_SAVED_DESCRIPTOR (desc_p) contains the CFI descriptor
8225 : -> PARM_DECL and before sym->backend_decl.
8226 : For scalars, decl == decl_p is a pointer variable. */
8227 1747 : tree desc_p, desc;
8228 1747 : location_t loc = gfc_get_location (&sym->declared_at);
8229 1747 : if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->length)
8230 647 : fsym->ts.u.cl->backend_decl = gfc_create_var (gfc_array_index_type,
8231 : fsym->name);
8232 1100 : else if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->backend_decl)
8233 : {
8234 157 : gfc_se se;
8235 157 : gfc_init_se (&se, NULL );
8236 157 : gfc_conv_expr (&se, fsym->ts.u.cl->length);
8237 157 : gfc_add_block_to_block (&init, &se.pre);
8238 157 : fsym->ts.u.cl->backend_decl = se.expr;
8239 157 : gcc_assert(se.post.head == NULL_TREE);
8240 : }
8241 : /* Nullify, otherwise gfc_sym_type will return the CFI type. */
8242 1747 : tree tmp = fsym->backend_decl;
8243 1747 : fsym->backend_decl = NULL;
8244 1747 : tree type = gfc_sym_type (fsym);
8245 1747 : gcc_assert (POINTER_TYPE_P (type));
8246 1747 : if (POINTER_TYPE_P (TREE_TYPE (type)))
8247 : /* For instance, allocatable scalars. */
8248 105 : type = TREE_TYPE (type);
8249 1747 : if (TREE_CODE (type) == REFERENCE_TYPE)
8250 1179 : type = build_pointer_type (TREE_TYPE (type));
8251 1747 : desc_p = build_decl (loc, VAR_DECL, get_identifier (fsym->name), type);
8252 1747 : if (!fsym->attr.dimension)
8253 : desc = desc_p;
8254 1583 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (TREE_TYPE (desc_p))))
8255 : {
8256 : /* Character(len=*) explicit-size/assumed-size array. */
8257 254 : desc = desc_p;
8258 254 : gfc_build_qualified_array (desc, fsym);
8259 : }
8260 : else
8261 : {
8262 1329 : tree size = size_in_bytes (TREE_TYPE (TREE_TYPE (desc_p)));
8263 1329 : tree call = builtin_decl_explicit (BUILT_IN_ALLOCA);
8264 1329 : call = build_call_expr_loc (input_location, call, 1, size);
8265 1329 : gfc_add_modify (&outer_block, desc_p,
8266 1329 : fold_convert (TREE_TYPE(desc_p), call));
8267 1329 : desc = build_fold_indirect_ref_loc (input_location, desc_p);
8268 : }
8269 1747 : pushdecl (desc_p);
8270 1747 : if (fsym->attr.optional)
8271 : {
8272 311 : gfc_allocate_lang_decl (desc_p);
8273 311 : GFC_DECL_OPTIONAL_ARGUMENT (desc_p) = 1;
8274 : }
8275 1747 : fsym->backend_decl = desc_p;
8276 1747 : gfc_conv_cfi_to_gfc (&init, &cleanup, tmp, desc, fsym);
8277 : }
8278 :
8279 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
8280 : especially as some late diagnostic is only done on tree level. */
8281 87551 : if (flag_openmp)
8282 8827 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
8283 :
8284 87551 : gfc_generate_contained_functions (ns);
8285 :
8286 87551 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8287 87551 : generate_local_vars (ns);
8288 :
8289 87551 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8290 407 : generate_coarray_init (ns);
8291 :
8292 : /* Keep the parent fake result declaration in module functions
8293 : or external procedures. */
8294 87551 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8295 60672 : || ns->parent == NULL)
8296 63847 : current_fake_result_decl = parent_fake_result_decl;
8297 : else
8298 23704 : current_fake_result_decl = NULL_TREE;
8299 :
8300 175102 : is_recursive = sym->attr.recursive
8301 87551 : || (sym->attr.entry_master
8302 667 : && sym->ns->entries->sym->attr.recursive);
8303 87551 : if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION)
8304 1009 : && !is_recursive && !flag_recursive && !sym->attr.artificial)
8305 : {
8306 840 : char * msg;
8307 :
8308 840 : msg = xasprintf ("Recursive call to nonrecursive procedure '%s'",
8309 : sym->name);
8310 840 : recurcheckvar = gfc_create_var (logical_type_node, "is_recursive");
8311 840 : TREE_STATIC (recurcheckvar) = 1;
8312 840 : DECL_INITIAL (recurcheckvar) = logical_false_node;
8313 840 : gfc_add_expr_to_block (&init, recurcheckvar);
8314 840 : gfc_trans_runtime_check (true, false, recurcheckvar, &init,
8315 : &sym->declared_at, msg);
8316 840 : gfc_add_modify (&init, recurcheckvar, logical_true_node);
8317 840 : free (msg);
8318 : }
8319 :
8320 : /* Check if an IEEE module is used in the procedure. If so, save
8321 : the floating point state. */
8322 87551 : ieee = is_ieee_module_used (ns);
8323 87551 : if (ieee)
8324 439 : fpstate = gfc_save_fp_state (&init);
8325 :
8326 : /* Now generate the code for the body of this function. */
8327 87551 : gfc_init_block (&body);
8328 :
8329 87551 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8330 87551 : && sym->attr.subroutine)
8331 : {
8332 42 : tree alternate_return;
8333 42 : alternate_return = gfc_get_fake_result_decl (sym, 0);
8334 42 : gfc_add_modify (&body, alternate_return, integer_zero_node);
8335 : }
8336 :
8337 87551 : if (ns->entries)
8338 : {
8339 : /* Jump to the correct entry point. */
8340 667 : tmp = gfc_trans_entry_master_switch (ns->entries);
8341 667 : gfc_add_expr_to_block (&body, tmp);
8342 : }
8343 :
8344 : /* If bounds-checking is enabled, generate code to check passed in actual
8345 : arguments against the expected dummy argument attributes (e.g. string
8346 : lengths). */
8347 87551 : if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c)
8348 2907 : add_argument_checking (&body, sym);
8349 :
8350 87551 : finish_oacc_declare (ns, sym, false);
8351 :
8352 87551 : if (gfc_current_ns != ns)
8353 : {
8354 50583 : gfc_namespace *old_current_ns = gfc_current_ns;
8355 50583 : gfc_current_ns = ns;
8356 50583 : tmp = gfc_trans_code (ns->code);
8357 50583 : gfc_current_ns = old_current_ns;
8358 : }
8359 : else
8360 36968 : tmp = gfc_trans_code (ns->code);
8361 :
8362 87551 : gfc_add_expr_to_block (&body, tmp);
8363 :
8364 : /* This permits the return value to be correctly initialized, even when the
8365 : function result was not referenced. */
8366 87551 : if (sym->abr_modproc_decl
8367 260 : && IS_PDT (sym)
8368 7 : && !sym->attr.allocatable
8369 7 : && sym->result == sym
8370 87558 : && get_proc_result (sym) == NULL_TREE)
8371 : {
8372 1 : gfc_get_fake_result_decl (sym->result, 0);
8373 : /* TODO: move to the appropriate place in resolve.cc. */
8374 1 : emit_not_set_warning (sym);
8375 : }
8376 :
8377 87551 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8378 87551 : || (sym->result && sym->result != sym
8379 1202 : && sym->result->ts.type == BT_DERIVED
8380 167 : && sym->result->ts.u.derived->attr.alloc_comp))
8381 : {
8382 12604 : bool artificial_result_decl = false;
8383 12604 : tree result = get_proc_result (sym);
8384 12604 : gfc_symbol *rsym = sym == sym->result ? sym : sym->result;
8385 :
8386 : /* Make sure that a function returning an object with
8387 : alloc/pointer_components always has a result, where at least
8388 : the allocatable/pointer components are set to zero. */
8389 12604 : if (result == NULL_TREE && sym->attr.function
8390 234 : && ((sym->result->ts.type == BT_DERIVED
8391 28 : && (sym->attr.allocatable
8392 22 : || sym->attr.pointer
8393 20 : || sym->result->ts.u.derived->attr.alloc_comp
8394 20 : || sym->result->ts.u.derived->attr.pointer_comp))
8395 226 : || (sym->result->ts.type == BT_CLASS
8396 38 : && (CLASS_DATA (sym->result)->attr.allocatable
8397 11 : || CLASS_DATA (sym->result)->attr.class_pointer
8398 0 : || CLASS_DATA (sym->result)->attr.alloc_comp
8399 0 : || CLASS_DATA (sym->result)->attr.pointer_comp))))
8400 : {
8401 46 : artificial_result_decl = true;
8402 46 : result = gfc_get_fake_result_decl (sym->result, 0);
8403 : }
8404 :
8405 12604 : if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer)
8406 : {
8407 11986 : if (sym->attr.allocatable && sym->attr.dimension == 0
8408 101 : && sym->result == sym)
8409 75 : gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result),
8410 : null_pointer_node));
8411 11911 : else if (sym->ts.type == BT_CLASS
8412 747 : && CLASS_DATA (sym)->attr.allocatable
8413 515 : && CLASS_DATA (sym)->attr.dimension == 0
8414 328 : && sym->result == sym)
8415 : {
8416 135 : tmp = gfc_class_data_get (result);
8417 135 : gfc_add_modify (&init, tmp,
8418 135 : fold_convert (TREE_TYPE (tmp),
8419 : null_pointer_node));
8420 135 : gfc_reset_vptr (&init, nullptr, result,
8421 135 : sym->result->ts.u.derived);
8422 : }
8423 11776 : else if (sym->ts.type == BT_DERIVED
8424 1324 : && !sym->attr.allocatable)
8425 : {
8426 1299 : gfc_expr *init_exp;
8427 : /* Arrays are not initialized using the default initializer of
8428 : their elements. Therefore only check if a default
8429 : initializer is available when the result is scalar. */
8430 1299 : init_exp = rsym->as ? NULL
8431 1266 : : gfc_generate_initializer (&rsym->ts, true);
8432 1266 : if (init_exp)
8433 : {
8434 699 : tmp = gfc_trans_structure_assign (result, init_exp, 0);
8435 699 : gfc_free_expr (init_exp);
8436 699 : gfc_add_expr_to_block (&init, tmp);
8437 : }
8438 :
8439 1299 : if (rsym->ts.u.derived->attr.alloc_comp)
8440 : {
8441 487 : rank = rsym->as ? rsym->as->rank : 0;
8442 487 : tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result,
8443 : rank);
8444 487 : gfc_prepend_expr_to_block (&body, tmp);
8445 : }
8446 : }
8447 : }
8448 :
8449 12604 : if (result == NULL_TREE || artificial_result_decl)
8450 : /* TODO: move to the appropriate place in resolve.cc. */
8451 234 : emit_not_set_warning (sym);
8452 :
8453 234 : if (result != NULL_TREE)
8454 12416 : gfc_add_expr_to_block (&body, gfc_generate_return ());
8455 : }
8456 :
8457 : /* Reset recursion-check variable. */
8458 87551 : if (recurcheckvar != NULL_TREE)
8459 : {
8460 840 : gfc_add_modify (&cleanup, recurcheckvar, logical_false_node);
8461 840 : recurcheckvar = NULL;
8462 : }
8463 :
8464 : /* If IEEE modules are loaded, restore the floating-point state. */
8465 87551 : if (ieee)
8466 439 : gfc_restore_fp_state (&cleanup, fpstate);
8467 :
8468 : /* Finish the function body and add init and cleanup code. */
8469 87551 : tmp = gfc_finish_block (&body);
8470 : /* Add code to create and cleanup arrays. */
8471 87551 : gfc_start_wrapped_block (&try_block, tmp);
8472 87551 : gfc_trans_deferred_vars (sym, &try_block);
8473 87551 : gfc_add_init_cleanup (&try_block, gfc_finish_block (&init),
8474 : gfc_finish_block (&cleanup));
8475 :
8476 : /* Add all the decls we created during processing. */
8477 87551 : decl = nreverse (saved_function_decls);
8478 479592 : while (decl)
8479 : {
8480 304490 : tree next;
8481 :
8482 304490 : next = DECL_CHAIN (decl);
8483 304490 : DECL_CHAIN (decl) = NULL_TREE;
8484 304490 : pushdecl (decl);
8485 304490 : decl = next;
8486 : }
8487 87551 : saved_function_decls = NULL_TREE;
8488 :
8489 87551 : gfc_add_expr_to_block (&outer_block, gfc_finish_wrapped_block (&try_block));
8490 87551 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&outer_block);
8491 87551 : decl = getdecls ();
8492 :
8493 : /* Finish off this function and send it for code generation. */
8494 87551 : poplevel (1, 1);
8495 87551 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8496 :
8497 175102 : DECL_SAVED_TREE (fndecl)
8498 175102 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
8499 175102 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
8500 :
8501 : /* Output the GENERIC tree. */
8502 87551 : dump_function (TDI_original, fndecl);
8503 :
8504 : /* Store the end of the function, so that we get good line number
8505 : info for the epilogue. */
8506 87551 : cfun->function_end_locus = input_location;
8507 :
8508 : /* We're leaving the context of this function, so zap cfun.
8509 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
8510 : tree_rest_of_compilation. */
8511 87551 : set_cfun (NULL);
8512 :
8513 87551 : if (old_context)
8514 : {
8515 23704 : pop_function_context ();
8516 23704 : saved_function_decls = saved_parent_function_decls;
8517 : }
8518 87551 : current_function_decl = old_context;
8519 :
8520 87551 : if (decl_function_context (fndecl))
8521 : {
8522 : /* Register this function with cgraph just far enough to get it
8523 : added to our parent's nested function list.
8524 : If there are static coarrays in this function, the nested _caf_init
8525 : function has already called cgraph_create_node, which also created
8526 : the cgraph node for this function. */
8527 23704 : if (!has_coarray_vars_or_accessors || flag_coarray != GFC_FCOARRAY_LIB)
8528 23498 : (void) cgraph_node::get_create (fndecl);
8529 : }
8530 : else
8531 63847 : cgraph_node::finalize_function (fndecl, true);
8532 :
8533 87551 : gfc_trans_use_stmts (ns);
8534 87551 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
8535 :
8536 87551 : if (sym->attr.is_main_program)
8537 26786 : create_main_function (fndecl);
8538 :
8539 87551 : current_procedure_symbol = previous_procedure_symbol;
8540 87551 : }
8541 :
8542 :
8543 : void
8544 32188 : gfc_generate_constructors (void)
8545 : {
8546 32188 : gcc_assert (gfc_static_ctors == NULL_TREE);
8547 : #if 0
8548 : tree fnname;
8549 : tree type;
8550 : tree fndecl;
8551 : tree decl;
8552 : tree tmp;
8553 :
8554 : if (gfc_static_ctors == NULL_TREE)
8555 : return;
8556 :
8557 : fnname = get_file_function_name ("I");
8558 : type = build_function_type_list (void_type_node, NULL_TREE);
8559 :
8560 : fndecl = build_decl (input_location,
8561 : FUNCTION_DECL, fnname, type);
8562 : TREE_PUBLIC (fndecl) = 1;
8563 :
8564 : decl = build_decl (input_location,
8565 : RESULT_DECL, NULL_TREE, void_type_node);
8566 : DECL_ARTIFICIAL (decl) = 1;
8567 : DECL_IGNORED_P (decl) = 1;
8568 : DECL_CONTEXT (decl) = fndecl;
8569 : DECL_RESULT (fndecl) = decl;
8570 :
8571 : pushdecl (fndecl);
8572 :
8573 : current_function_decl = fndecl;
8574 :
8575 : rest_of_decl_compilation (fndecl, 1, 0);
8576 :
8577 : make_decl_rtl (fndecl);
8578 :
8579 : allocate_struct_function (fndecl, false);
8580 :
8581 : pushlevel ();
8582 :
8583 : for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors))
8584 : {
8585 : tmp = build_call_expr_loc (input_location,
8586 : TREE_VALUE (gfc_static_ctors), 0);
8587 : DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp);
8588 : }
8589 :
8590 : decl = getdecls ();
8591 : poplevel (1, 1);
8592 :
8593 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8594 : DECL_SAVED_TREE (fndecl)
8595 : = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl),
8596 : DECL_INITIAL (fndecl));
8597 :
8598 : free_after_parsing (cfun);
8599 : free_after_compilation (cfun);
8600 :
8601 : tree_rest_of_compilation (fndecl);
8602 :
8603 : current_function_decl = NULL_TREE;
8604 : #endif
8605 32188 : }
8606 :
8607 :
8608 : /* Helper function for checking of variables declared in a BLOCK DATA program
8609 : unit. */
8610 :
8611 : static void
8612 301 : check_block_data_decls (gfc_symbol * sym)
8613 : {
8614 301 : if (warn_unused_variable
8615 13 : && sym->attr.flavor == FL_VARIABLE
8616 7 : && !sym->attr.in_common
8617 3 : && !sym->attr.artificial)
8618 : {
8619 2 : gfc_warning (OPT_Wunused_variable,
8620 : "Symbol %qs at %L is declared in a BLOCK DATA "
8621 : "program unit but is not in a COMMON block",
8622 : sym->name, &sym->declared_at);
8623 : }
8624 301 : }
8625 :
8626 :
8627 : /* Translates a BLOCK DATA program unit. This means emitting the
8628 : commons contained therein plus their initializations. We also emit
8629 : a globally visible symbol to make sure that each BLOCK DATA program
8630 : unit remains unique. */
8631 :
8632 : void
8633 72 : gfc_generate_block_data (gfc_namespace * ns)
8634 : {
8635 72 : tree decl;
8636 72 : tree id;
8637 :
8638 : /* Tell the backend the source location of the block data. */
8639 72 : if (ns->proc_name)
8640 29 : input_location = gfc_get_location (&ns->proc_name->declared_at);
8641 : else
8642 43 : input_location = gfc_get_location (&gfc_current_locus);
8643 :
8644 : /* Process the DATA statements. */
8645 72 : gfc_trans_common (ns);
8646 :
8647 : /* Check for variables declared in BLOCK DATA but not used in COMMON. */
8648 72 : gfc_traverse_ns (ns, check_block_data_decls);
8649 :
8650 : /* Create a global symbol with the mane of the block data. This is to
8651 : generate linker errors if the same name is used twice. It is never
8652 : really used. */
8653 72 : if (ns->proc_name)
8654 29 : id = gfc_sym_mangled_function_id (ns->proc_name);
8655 : else
8656 43 : id = get_identifier ("__BLOCK_DATA__");
8657 :
8658 72 : decl = build_decl (input_location,
8659 : VAR_DECL, id, gfc_array_index_type);
8660 72 : TREE_PUBLIC (decl) = 1;
8661 72 : TREE_STATIC (decl) = 1;
8662 72 : DECL_IGNORED_P (decl) = 1;
8663 :
8664 72 : pushdecl (decl);
8665 72 : rest_of_decl_compilation (decl, 1, 0);
8666 72 : }
8667 :
8668 : void
8669 14509 : gfc_start_saved_local_decls ()
8670 : {
8671 14509 : gcc_checking_assert (current_function_decl != NULL_TREE);
8672 14509 : saved_local_decls = NULL_TREE;
8673 14509 : }
8674 :
8675 : void
8676 14509 : gfc_stop_saved_local_decls ()
8677 : {
8678 14509 : tree decl = nreverse (saved_local_decls);
8679 42423 : while (decl)
8680 : {
8681 13405 : tree next;
8682 :
8683 13405 : next = DECL_CHAIN (decl);
8684 13405 : DECL_CHAIN (decl) = NULL_TREE;
8685 13405 : pushdecl (decl);
8686 13405 : decl = next;
8687 : }
8688 14509 : saved_local_decls = NULL_TREE;
8689 14509 : }
8690 :
8691 : /* Process the local variables of a BLOCK construct. */
8692 :
8693 : void
8694 14461 : gfc_process_block_locals (gfc_namespace* ns)
8695 : {
8696 14461 : gfc_start_saved_local_decls ();
8697 14461 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8698 :
8699 14461 : generate_local_vars (ns);
8700 :
8701 14461 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8702 41 : generate_coarray_init (ns);
8703 14461 : gfc_stop_saved_local_decls ();
8704 14461 : }
8705 :
8706 :
8707 : #include "gt-fortran-trans-decl.h"
|
