Line data Source code
1 : /* Backend function setup
2 : Copyright (C) 2002-2026 Free Software Foundation, Inc.
3 : Contributed by Paul Brook
4 :
5 : This file is part of GCC.
6 :
7 : GCC is free software; you can redistribute it and/or modify it under
8 : the terms of the GNU General Public License as published by the Free
9 : Software Foundation; either version 3, or (at your option) any later
10 : version.
11 :
12 : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 : WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 : FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 : for more details.
16 :
17 : You should have received a copy of the GNU General Public License
18 : along with GCC; see the file COPYING3. If not see
19 : <http://www.gnu.org/licenses/>. */
20 :
21 : /* trans-decl.cc -- Handling of backend function and variable decls, etc */
22 :
23 : #include "config.h"
24 : #include "system.h"
25 : #include "coretypes.h"
26 : #include "target.h"
27 : #include "function.h"
28 : #include "tree.h"
29 : #include "gfortran.h"
30 : #include "gimple-expr.h" /* For create_tmp_var_raw. */
31 : #include "trans.h"
32 : #include "stringpool.h"
33 : #include "cgraph.h"
34 : #include "fold-const.h"
35 : #include "stor-layout.h"
36 : #include "varasm.h"
37 : #include "attribs.h"
38 : #include "dumpfile.h"
39 : #include "toplev.h" /* For announce_function. */
40 : #include "debug.h"
41 : #include "constructor.h"
42 : #include "trans-types.h"
43 : #include "trans-array.h"
44 : #include "trans-const.h"
45 : /* Only for gfc_trans_code. Shouldn't need to include this. */
46 : #include "trans-stmt.h"
47 : #include "gomp-constants.h"
48 : #include "gimplify.h"
49 : #include "context.h"
50 : #include "omp-general.h"
51 : #include "omp-offload.h"
52 : #include "attr-fnspec.h"
53 : #include "tree-iterator.h"
54 : #include "dependency.h"
55 :
56 : #define MAX_LABEL_VALUE 99999
57 :
58 :
59 : /* Holds the result of the function if no result variable specified. */
60 :
61 : static GTY(()) tree current_fake_result_decl;
62 : static GTY(()) tree parent_fake_result_decl;
63 :
64 :
65 : /* Holds the variable DECLs for the current function. */
66 :
67 : static GTY(()) tree saved_function_decls;
68 : static GTY(()) tree saved_parent_function_decls;
69 :
70 : /* Holds the variable DECLs that are locals. */
71 :
72 : static GTY(()) tree saved_local_decls;
73 :
74 : /* The namespace of the module we're currently generating. Only used while
75 : outputting decls for module variables. Do not rely on this being set. */
76 :
77 : static gfc_namespace *module_namespace;
78 :
79 : /* The currently processed procedure symbol. */
80 : static gfc_symbol* current_procedure_symbol = NULL;
81 :
82 : /* The currently processed module. */
83 : static struct module_htab_entry *cur_module;
84 :
85 : /* With -fcoarray=lib: For generating the registering call
86 : of static coarrays. */
87 : static bool has_coarray_vars_or_accessors;
88 : static stmtblock_t caf_init_block;
89 :
90 :
91 : /* List of static constructor functions. */
92 :
93 : tree gfc_static_ctors;
94 :
95 :
96 : /* Whether we've seen a symbol from an IEEE module in the namespace. */
97 : static int seen_ieee_symbol;
98 :
99 : /* Function declarations for builtin library functions. */
100 :
101 : tree gfor_fndecl_pause_numeric;
102 : tree gfor_fndecl_pause_string;
103 : tree gfor_fndecl_stop_numeric;
104 : tree gfor_fndecl_stop_string;
105 : tree gfor_fndecl_error_stop_numeric;
106 : tree gfor_fndecl_error_stop_string;
107 : tree gfor_fndecl_runtime_error;
108 : tree gfor_fndecl_runtime_error_at;
109 : tree gfor_fndecl_runtime_warning_at;
110 : tree gfor_fndecl_os_error_at;
111 : tree gfor_fndecl_generate_error;
112 : tree gfor_fndecl_set_args;
113 : tree gfor_fndecl_set_fpe;
114 : tree gfor_fndecl_set_options;
115 : tree gfor_fndecl_set_convert;
116 : tree gfor_fndecl_set_record_marker;
117 : tree gfor_fndecl_set_max_subrecord_length;
118 : tree gfor_fndecl_ctime;
119 : tree gfor_fndecl_fdate;
120 : tree gfor_fndecl_ttynam;
121 : tree gfor_fndecl_in_pack;
122 : tree gfor_fndecl_in_unpack;
123 : tree gfor_fndecl_in_pack_class;
124 : tree gfor_fndecl_in_unpack_class;
125 : tree gfor_fndecl_associated;
126 : tree gfor_fndecl_system_clock4;
127 : tree gfor_fndecl_system_clock8;
128 : tree gfor_fndecl_ieee_procedure_entry;
129 : tree gfor_fndecl_ieee_procedure_exit;
130 :
131 : /* Coarray run-time library function decls. */
132 : tree gfor_fndecl_caf_init;
133 : tree gfor_fndecl_caf_finalize;
134 : tree gfor_fndecl_caf_this_image;
135 : tree gfor_fndecl_caf_num_images;
136 : tree gfor_fndecl_caf_register;
137 : tree gfor_fndecl_caf_deregister;
138 : tree gfor_fndecl_caf_register_accessor;
139 : tree gfor_fndecl_caf_register_accessors_finish;
140 : tree gfor_fndecl_caf_get_remote_function_index;
141 : tree gfor_fndecl_caf_get_from_remote;
142 : tree gfor_fndecl_caf_send_to_remote;
143 : tree gfor_fndecl_caf_transfer_between_remotes;
144 : tree gfor_fndecl_caf_sync_all;
145 : tree gfor_fndecl_caf_sync_memory;
146 : tree gfor_fndecl_caf_sync_images;
147 : tree gfor_fndecl_caf_stop_str;
148 : tree gfor_fndecl_caf_stop_numeric;
149 : tree gfor_fndecl_caf_error_stop;
150 : tree gfor_fndecl_caf_error_stop_str;
151 : tree gfor_fndecl_caf_atomic_def;
152 : tree gfor_fndecl_caf_atomic_ref;
153 : tree gfor_fndecl_caf_atomic_cas;
154 : tree gfor_fndecl_caf_atomic_op;
155 : tree gfor_fndecl_caf_lock;
156 : tree gfor_fndecl_caf_unlock;
157 : tree gfor_fndecl_caf_event_post;
158 : tree gfor_fndecl_caf_event_wait;
159 : tree gfor_fndecl_caf_event_query;
160 : tree gfor_fndecl_caf_fail_image;
161 : tree gfor_fndecl_caf_failed_images;
162 : tree gfor_fndecl_caf_image_status;
163 : tree gfor_fndecl_caf_stopped_images;
164 : tree gfor_fndecl_caf_form_team;
165 : tree gfor_fndecl_caf_change_team;
166 : tree gfor_fndecl_caf_end_team;
167 : tree gfor_fndecl_caf_sync_team;
168 : tree gfor_fndecl_caf_get_team;
169 : tree gfor_fndecl_caf_team_number;
170 : tree gfor_fndecl_co_broadcast;
171 : tree gfor_fndecl_co_max;
172 : tree gfor_fndecl_co_min;
173 : tree gfor_fndecl_co_reduce;
174 : tree gfor_fndecl_co_sum;
175 : tree gfor_fndecl_caf_is_present_on_remote;
176 : tree gfor_fndecl_caf_random_init;
177 :
178 :
179 : /* Math functions. Many other math functions are handled in
180 : trans-intrinsic.cc. */
181 :
182 : gfc_powdecl_list gfor_fndecl_math_powi[4][3];
183 : tree gfor_fndecl_unsigned_pow_list[5][5];
184 :
185 : tree gfor_fndecl_math_ishftc4;
186 : tree gfor_fndecl_math_ishftc8;
187 : tree gfor_fndecl_math_ishftc16;
188 :
189 :
190 : /* String functions. */
191 :
192 : tree gfor_fndecl_compare_string;
193 : tree gfor_fndecl_concat_string;
194 : tree gfor_fndecl_string_len_trim;
195 : tree gfor_fndecl_string_index;
196 : tree gfor_fndecl_string_scan;
197 : tree gfor_fndecl_string_verify;
198 : tree gfor_fndecl_string_trim;
199 : tree gfor_fndecl_string_minmax;
200 : tree gfor_fndecl_string_split;
201 : tree gfor_fndecl_adjustl;
202 : tree gfor_fndecl_adjustr;
203 : tree gfor_fndecl_select_string;
204 : tree gfor_fndecl_compare_string_char4;
205 : tree gfor_fndecl_concat_string_char4;
206 : tree gfor_fndecl_string_len_trim_char4;
207 : tree gfor_fndecl_string_index_char4;
208 : tree gfor_fndecl_string_scan_char4;
209 : tree gfor_fndecl_string_verify_char4;
210 : tree gfor_fndecl_string_trim_char4;
211 : tree gfor_fndecl_string_minmax_char4;
212 : tree gfor_fndecl_string_split_char4;
213 : tree gfor_fndecl_adjustl_char4;
214 : tree gfor_fndecl_adjustr_char4;
215 : tree gfor_fndecl_select_string_char4;
216 :
217 :
218 : /* Conversion between character kinds. */
219 : tree gfor_fndecl_convert_char1_to_char4;
220 : tree gfor_fndecl_convert_char4_to_char1;
221 :
222 :
223 : /* Other misc. runtime library functions. */
224 : tree gfor_fndecl_iargc;
225 : tree gfor_fndecl_kill;
226 : tree gfor_fndecl_kill_sub;
227 : tree gfor_fndecl_is_contiguous0;
228 : tree gfor_fndecl_fstat_i4_sub;
229 : tree gfor_fndecl_fstat_i8_sub;
230 : tree gfor_fndecl_lstat_i4_sub;
231 : tree gfor_fndecl_lstat_i8_sub;
232 : tree gfor_fndecl_stat_i4_sub;
233 : tree gfor_fndecl_stat_i8_sub;
234 :
235 :
236 : /* Intrinsic functions implemented in Fortran. */
237 : tree gfor_fndecl_sc_kind;
238 : tree gfor_fndecl_si_kind;
239 : tree gfor_fndecl_sl_kind;
240 : tree gfor_fndecl_sr_kind;
241 :
242 : /* BLAS gemm functions. */
243 : tree gfor_fndecl_sgemm;
244 : tree gfor_fndecl_dgemm;
245 : tree gfor_fndecl_cgemm;
246 : tree gfor_fndecl_zgemm;
247 :
248 : /* RANDOM_INIT function. */
249 : tree gfor_fndecl_random_init; /* libgfortran, 1 image only. */
250 :
251 : /* Deep copy helper for recursive allocatable array components. */
252 : tree gfor_fndecl_cfi_deep_copy_array;
253 :
254 : static void
255 5019 : gfc_add_decl_to_parent_function (tree decl)
256 : {
257 5019 : gcc_assert (decl);
258 5019 : DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl);
259 5019 : DECL_NONLOCAL (decl) = 1;
260 5019 : DECL_CHAIN (decl) = saved_parent_function_decls;
261 5019 : saved_parent_function_decls = decl;
262 5019 : }
263 :
264 : void
265 285864 : gfc_add_decl_to_function (tree decl)
266 : {
267 285864 : gcc_assert (decl);
268 285864 : TREE_USED (decl) = 1;
269 285864 : DECL_CONTEXT (decl) = current_function_decl;
270 285864 : DECL_CHAIN (decl) = saved_function_decls;
271 285864 : saved_function_decls = decl;
272 285864 : }
273 :
274 : static void
275 12935 : add_decl_as_local (tree decl)
276 : {
277 12935 : gcc_assert (decl);
278 12935 : TREE_USED (decl) = 1;
279 12935 : DECL_CONTEXT (decl) = current_function_decl;
280 12935 : DECL_CHAIN (decl) = saved_local_decls;
281 12935 : saved_local_decls = decl;
282 12935 : }
283 :
284 :
285 : /* Build a backend label declaration. Set TREE_USED for named labels.
286 : The context of the label is always the current_function_decl. All
287 : labels are marked artificial. */
288 :
289 : tree
290 617539 : gfc_build_label_decl (tree label_id)
291 : {
292 : /* 2^32 temporaries should be enough. */
293 617539 : static unsigned int tmp_num = 1;
294 617539 : tree label_decl;
295 617539 : char *label_name;
296 :
297 617539 : if (label_id == NULL_TREE)
298 : {
299 : /* Build an internal label name. */
300 614019 : ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++);
301 614019 : label_id = get_identifier (label_name);
302 : }
303 : else
304 617539 : label_name = NULL;
305 :
306 : /* Build the LABEL_DECL node. Labels have no type. */
307 617539 : label_decl = build_decl (input_location,
308 : LABEL_DECL, label_id, void_type_node);
309 617539 : DECL_CONTEXT (label_decl) = current_function_decl;
310 617539 : SET_DECL_MODE (label_decl, VOIDmode);
311 :
312 : /* We always define the label as used, even if the original source
313 : file never references the label. We don't want all kinds of
314 : spurious warnings for old-style Fortran code with too many
315 : labels. */
316 617539 : TREE_USED (label_decl) = 1;
317 :
318 617539 : DECL_ARTIFICIAL (label_decl) = 1;
319 617539 : return label_decl;
320 : }
321 :
322 :
323 : /* Set the backend source location of a decl. */
324 :
325 : void
326 180839 : gfc_set_decl_location (tree decl, locus * loc)
327 : {
328 180839 : DECL_SOURCE_LOCATION (decl) = gfc_get_location (loc);
329 180839 : }
330 :
331 :
332 : /* Return the backend label declaration for a given label structure,
333 : or create it if it doesn't exist yet. */
334 :
335 : tree
336 5850 : gfc_get_label_decl (gfc_st_label * lp)
337 : {
338 5850 : if (lp->backend_decl)
339 : return lp->backend_decl;
340 : else
341 : {
342 3520 : char label_name[GFC_MAX_SYMBOL_LEN + 1];
343 3520 : tree label_decl;
344 :
345 : /* Validate the label declaration from the front end. */
346 3520 : gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE);
347 :
348 : /* Build a mangled name for the label. */
349 3520 : if (lp->omp_region)
350 11 : sprintf (label_name, "__label_%d_%.6d", lp->omp_region, lp->value);
351 : else
352 3509 : sprintf (label_name, "__label_%.6d", lp->value);
353 :
354 : /* Build the LABEL_DECL node. */
355 3520 : label_decl = gfc_build_label_decl (get_identifier (label_name));
356 :
357 : /* Tell the debugger where the label came from. */
358 3520 : if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */
359 3520 : gfc_set_decl_location (label_decl, &lp->where);
360 : else
361 0 : DECL_ARTIFICIAL (label_decl) = 1;
362 :
363 : /* Store the label in the label list and return the LABEL_DECL. */
364 3520 : lp->backend_decl = label_decl;
365 3520 : return label_decl;
366 : }
367 : }
368 :
369 : /* Return the name of an identifier. */
370 :
371 : static const char *
372 412519 : sym_identifier (gfc_symbol *sym)
373 : {
374 412519 : if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0)
375 : return "MAIN__";
376 : else
377 408200 : return sym->name;
378 : }
379 :
380 : /* Convert a gfc_symbol to an identifier of the same name. */
381 :
382 : static tree
383 412519 : gfc_sym_identifier (gfc_symbol * sym)
384 : {
385 412519 : return get_identifier (sym_identifier (sym));
386 : }
387 :
388 : /* Construct mangled name from symbol name. */
389 :
390 : static const char *
391 19483 : mangled_identifier (gfc_symbol *sym)
392 : {
393 19483 : gfc_symbol *proc = sym->ns->proc_name;
394 19483 : static char name[3*GFC_MAX_MANGLED_SYMBOL_LEN + 14];
395 : /* Prevent the mangling of identifiers that have an assigned
396 : binding label (mainly those that are bind(c)). */
397 :
398 19483 : if (sym->attr.is_bind_c == 1 && sym->binding_label)
399 : return sym->binding_label;
400 :
401 19358 : if (!sym->fn_result_spec
402 57 : || (sym->module && !(proc && proc->attr.flavor == FL_PROCEDURE)))
403 : {
404 19309 : if (sym->module == NULL)
405 0 : return sym_identifier (sym);
406 : else
407 19309 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
408 : }
409 : else
410 : {
411 : /* This is an entity that is actually local to a module procedure
412 : that appears in the result specification expression. Since
413 : sym->module will be a zero length string, we use ns->proc_name
414 : to provide the module name instead. */
415 49 : if (proc && proc->module)
416 48 : snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s",
417 : proc->module, proc->name, sym->name);
418 : else
419 1 : snprintf (name, sizeof name, "__%s_PROC_%s",
420 : proc->name, sym->name);
421 : }
422 :
423 : return name;
424 : }
425 :
426 : /* Get mangled identifier, adding the symbol to the global table if
427 : it is not yet already there. */
428 :
429 : static tree
430 19334 : gfc_sym_mangled_identifier (gfc_symbol * sym)
431 : {
432 19334 : tree result;
433 19334 : gfc_gsymbol *gsym;
434 19334 : const char *name;
435 :
436 19334 : name = mangled_identifier (sym);
437 19334 : result = get_identifier (name);
438 :
439 19334 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
440 19334 : if (gsym == NULL)
441 : {
442 19158 : gsym = gfc_get_gsymbol (name, false);
443 19158 : gsym->ns = sym->ns;
444 19158 : gsym->sym_name = sym->name;
445 : }
446 :
447 19334 : return result;
448 : }
449 :
450 : /* Construct mangled function name from symbol name. */
451 :
452 : static tree
453 80431 : gfc_sym_mangled_function_id (gfc_symbol * sym)
454 : {
455 80431 : int has_underscore;
456 80431 : char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1];
457 :
458 : /* It may be possible to simply use the binding label if it's
459 : provided, and remove the other checks. Then we could use it
460 : for other things if we wished. */
461 80431 : if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) &&
462 3406 : sym->binding_label)
463 : /* use the binding label rather than the mangled name */
464 3396 : return get_identifier (sym->binding_label);
465 :
466 77035 : if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL
467 26160 : || (sym->module != NULL && (sym->attr.external
468 25109 : || sym->attr.if_source == IFSRC_IFBODY)))
469 51926 : && !sym->attr.module_procedure)
470 : {
471 : /* Main program is mangled into MAIN__. */
472 51541 : if (sym->attr.is_main_program)
473 26026 : return get_identifier ("MAIN__");
474 :
475 : /* Intrinsic procedures are never mangled. */
476 25515 : if (sym->attr.proc == PROC_INTRINSIC)
477 10943 : return get_identifier (sym->name);
478 :
479 14572 : if (flag_underscoring)
480 : {
481 13757 : has_underscore = strchr (sym->name, '_') != 0;
482 13757 : if (flag_second_underscore && has_underscore)
483 201 : snprintf (name, sizeof name, "%s__", sym->name);
484 : else
485 13556 : snprintf (name, sizeof name, "%s_", sym->name);
486 13757 : return get_identifier (name);
487 : }
488 : else
489 815 : return get_identifier (sym->name);
490 : }
491 : else
492 : {
493 25494 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
494 25494 : return get_identifier (name);
495 : }
496 : }
497 :
498 :
499 : void
500 102042 : gfc_set_decl_assembler_name (tree decl, tree name)
501 : {
502 102042 : tree target_mangled = targetm.mangle_decl_assembler_name (decl, name);
503 102042 : SET_DECL_ASSEMBLER_NAME (decl, target_mangled);
504 102042 : }
505 :
506 :
507 : /* Returns true if a variable of specified size should go on the stack. */
508 :
509 : bool
510 170553 : gfc_can_put_var_on_stack (tree size)
511 : {
512 170553 : unsigned HOST_WIDE_INT low;
513 :
514 170553 : if (!INTEGER_CST_P (size))
515 : return 0;
516 :
517 163077 : if (flag_max_stack_var_size < 0)
518 : return 1;
519 :
520 135414 : if (!tree_fits_uhwi_p (size))
521 : return 0;
522 :
523 135414 : low = TREE_INT_CST_LOW (size);
524 135414 : if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size)
525 206 : return 0;
526 :
527 : /* TODO: Set a per-function stack size limit. */
528 :
529 : return 1;
530 : }
531 :
532 :
533 : /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to
534 : an expression involving its corresponding pointer. There are
535 : 2 cases; one for variable size arrays, and one for everything else,
536 : because variable-sized arrays require one fewer level of
537 : indirection. */
538 :
539 : static void
540 288 : gfc_finish_cray_pointee (tree decl, gfc_symbol *sym)
541 : {
542 288 : tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer);
543 288 : tree value;
544 :
545 : /* Parameters need to be dereferenced. */
546 288 : if (sym->cp_pointer->attr.dummy)
547 1 : ptr_decl = build_fold_indirect_ref_loc (input_location,
548 : ptr_decl);
549 :
550 : /* Check to see if we're dealing with a variable-sized array. */
551 288 : if (sym->attr.dimension
552 288 : && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE)
553 : {
554 : /* These decls will be dereferenced later, so we don't dereference
555 : them here. */
556 140 : value = convert (TREE_TYPE (decl), ptr_decl);
557 : }
558 : else
559 : {
560 148 : ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)),
561 : ptr_decl);
562 148 : value = build_fold_indirect_ref_loc (input_location,
563 : ptr_decl);
564 : }
565 :
566 288 : SET_DECL_VALUE_EXPR (decl, value);
567 288 : DECL_HAS_VALUE_EXPR_P (decl) = 1;
568 288 : GFC_DECL_CRAY_POINTEE (decl) = 1;
569 288 : }
570 :
571 :
572 : /* Finish processing of a declaration without an initial value. */
573 :
574 : static void
575 172831 : gfc_finish_decl (tree decl)
576 : {
577 172831 : gcc_assert (TREE_CODE (decl) == PARM_DECL
578 : || DECL_INITIAL (decl) == NULL_TREE);
579 :
580 172831 : if (!VAR_P (decl))
581 : return;
582 :
583 750 : if (DECL_SIZE (decl) == NULL_TREE
584 750 : && COMPLETE_TYPE_P (TREE_TYPE (decl)))
585 0 : layout_decl (decl, 0);
586 :
587 : /* A few consistency checks. */
588 : /* A static variable with an incomplete type is an error if it is
589 : initialized. Also if it is not file scope. Otherwise, let it
590 : through, but if it is not `extern' then it may cause an error
591 : message later. */
592 : /* An automatic variable with an incomplete type is an error. */
593 :
594 : /* We should know the storage size. */
595 750 : gcc_assert (DECL_SIZE (decl) != NULL_TREE
596 : || (TREE_STATIC (decl)
597 : ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl))
598 : : DECL_EXTERNAL (decl)));
599 :
600 : /* The storage size should be constant. */
601 750 : gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl))
602 : || !DECL_SIZE (decl)
603 : || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST);
604 : }
605 :
606 :
607 : /* Handle setting of GFC_DECL_SCALAR* on DECL. */
608 :
609 : void
610 415841 : gfc_finish_decl_attrs (tree decl, symbol_attribute *attr)
611 : {
612 415841 : if (!attr->dimension && !attr->codimension)
613 : {
614 : /* Handle scalar allocatable variables. */
615 329637 : if (attr->allocatable)
616 : {
617 6762 : gfc_allocate_lang_decl (decl);
618 6762 : GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1;
619 : }
620 : /* Handle scalar pointer variables. */
621 329637 : if (attr->pointer)
622 : {
623 41089 : gfc_allocate_lang_decl (decl);
624 41089 : GFC_DECL_SCALAR_POINTER (decl) = 1;
625 : }
626 329637 : if (attr->target)
627 : {
628 24997 : gfc_allocate_lang_decl (decl);
629 24997 : GFC_DECL_SCALAR_TARGET (decl) = 1;
630 : }
631 : }
632 415841 : }
633 :
634 :
635 : /* Apply symbol attributes to a variable, and add it to the function scope. */
636 :
637 : static void
638 182978 : gfc_finish_var_decl (tree decl, gfc_symbol * sym)
639 : {
640 182978 : tree new_type;
641 :
642 : /* Set DECL_VALUE_EXPR for Cray Pointees. */
643 182978 : if (sym->attr.cray_pointee)
644 288 : gfc_finish_cray_pointee (decl, sym);
645 :
646 : /* TREE_ADDRESSABLE means the address of this variable is actually needed.
647 : This is the equivalent of the TARGET variables.
648 : We also need to set this if the variable is passed by reference in a
649 : CALL statement. */
650 182978 : if (sym->attr.target)
651 27307 : TREE_ADDRESSABLE (decl) = 1;
652 :
653 : /* If it wasn't used we wouldn't be getting it. */
654 182978 : TREE_USED (decl) = 1;
655 :
656 182978 : if (sym->attr.flavor == FL_PARAMETER
657 1468 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
658 1458 : TREE_READONLY (decl) = 1;
659 :
660 : /* Chain this decl to the pending declarations. Don't do pushdecl()
661 : because this would add them to the current scope rather than the
662 : function scope. */
663 182978 : if (current_function_decl != NULL_TREE)
664 : {
665 163803 : if (sym->ns->proc_name
666 163797 : && (sym->ns->proc_name->backend_decl == current_function_decl
667 17853 : || sym->result == sym))
668 145944 : gfc_add_decl_to_function (decl);
669 17859 : else if (sym->ns->proc_name
670 17853 : && sym->ns->proc_name->attr.flavor == FL_LABEL)
671 : /* This is a BLOCK construct. */
672 12935 : add_decl_as_local (decl);
673 4924 : else if (sym->ns->omp_affinity_iterators)
674 : /* This is a block-local iterator. */
675 0 : add_decl_as_local (decl);
676 : else
677 4924 : gfc_add_decl_to_parent_function (decl);
678 : }
679 :
680 182978 : if (sym->attr.cray_pointee)
681 : return;
682 :
683 182690 : if(sym->attr.is_bind_c == 1 && sym->binding_label)
684 : {
685 : /* We need to put variables that are bind(c) into the common
686 : segment of the object file, because this is what C would do.
687 : gfortran would typically put them in either the BSS or
688 : initialized data segments, and only mark them as common if
689 : they were part of common blocks. However, if they are not put
690 : into common space, then C cannot initialize global Fortran
691 : variables that it interoperates with and the draft says that
692 : either Fortran or C should be able to initialize it (but not
693 : both, of course.) (J3/04-007, section 15.3). */
694 125 : TREE_PUBLIC(decl) = 1;
695 125 : DECL_COMMON(decl) = 1;
696 125 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
697 : {
698 2 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
699 2 : DECL_VISIBILITY_SPECIFIED (decl) = true;
700 : }
701 : }
702 :
703 : /* If a variable is USE associated, it's always external. */
704 182690 : if (sym->attr.use_assoc || sym->attr.used_in_submodule)
705 : {
706 112 : DECL_EXTERNAL (decl) = 1;
707 112 : TREE_PUBLIC (decl) = 1;
708 : }
709 182578 : else if (sym->fn_result_spec && !sym->ns->proc_name->module)
710 : {
711 :
712 1 : if (sym->ns->proc_name->attr.if_source != IFSRC_DECL)
713 0 : DECL_EXTERNAL (decl) = 1;
714 : else
715 1 : TREE_STATIC (decl) = 1;
716 :
717 1 : TREE_PUBLIC (decl) = 1;
718 : }
719 182577 : else if (sym->module && !sym->attr.result && !sym->attr.dummy)
720 : {
721 : /* TODO: Don't set sym->module for result or dummy variables. */
722 19166 : gcc_assert (current_function_decl == NULL_TREE || sym->result == sym);
723 :
724 19166 : TREE_PUBLIC (decl) = 1;
725 19166 : TREE_STATIC (decl) = 1;
726 19166 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
727 : {
728 344 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
729 344 : DECL_VISIBILITY_SPECIFIED (decl) = true;
730 : }
731 : }
732 :
733 : /* Derived types are a bit peculiar because of the possibility of
734 : a default initializer; this must be applied each time the variable
735 : comes into scope it therefore need not be static. These variables
736 : are SAVE_NONE but have an initializer. Otherwise explicitly
737 : initialized variables are SAVE_IMPLICIT and explicitly saved are
738 : SAVE_EXPLICIT. */
739 182690 : if (!sym->attr.use_assoc
740 182581 : && (sym->attr.save != SAVE_NONE || sym->attr.data
741 147254 : || (sym->value && sym->ns->proc_name->attr.is_main_program)
742 142975 : || (flag_coarray == GFC_FCOARRAY_LIB
743 2220 : && sym->attr.codimension && !sym->attr.allocatable)))
744 39779 : TREE_STATIC (decl) = 1;
745 :
746 : /* If derived-type variables with DTIO procedures are not made static
747 : some bits of code referencing them get optimized away.
748 : TODO Understand why this is so and fix it. */
749 182690 : if (!sym->attr.use_assoc
750 182581 : && ((sym->ts.type == BT_DERIVED
751 35284 : && sym->ts.u.derived->attr.has_dtio_procs)
752 181990 : || (sym->ts.type == BT_CLASS
753 4748 : && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs)))
754 623 : TREE_STATIC (decl) = 1;
755 :
756 : /* Treat asynchronous variables the same as volatile, for now. */
757 182690 : if (sym->attr.volatile_ || sym->attr.asynchronous)
758 : {
759 771 : TREE_THIS_VOLATILE (decl) = 1;
760 771 : TREE_SIDE_EFFECTS (decl) = 1;
761 771 : new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE);
762 771 : TREE_TYPE (decl) = new_type;
763 : }
764 :
765 : /* Keep variables larger than max-stack-var-size off stack. */
766 182684 : if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive)
767 160340 : && !sym->attr.automatic
768 160327 : && !sym->attr.associate_var
769 152155 : && sym->attr.save != SAVE_EXPLICIT
770 148471 : && sym->attr.save != SAVE_IMPLICIT
771 118885 : && INTEGER_CST_P (DECL_SIZE_UNIT (decl))
772 118494 : && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
773 : /* Put variable length auto array pointers always into stack. */
774 141 : && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE
775 2 : || sym->attr.dimension == 0
776 2 : || sym->as->type != AS_EXPLICIT
777 2 : || sym->attr.pointer
778 2 : || sym->attr.allocatable)
779 182829 : && !DECL_ARTIFICIAL (decl))
780 : {
781 138 : if (flag_max_stack_var_size > 0
782 131 : && !(sym->ns->proc_name
783 131 : && sym->ns->proc_name->attr.is_main_program))
784 32 : gfc_warning (OPT_Wsurprising,
785 : "Array %qs at %L is larger than limit set by "
786 : "%<-fmax-stack-var-size=%>, moved from stack to static "
787 : "storage. This makes the procedure unsafe when called "
788 : "recursively, or concurrently from multiple threads. "
789 : "Consider increasing the %<-fmax-stack-var-size=%> "
790 : "limit (or use %<-frecursive%>, which implies "
791 : "unlimited %<-fmax-stack-var-size%>) - or change the "
792 : "code to use an ALLOCATABLE array. If the variable is "
793 : "never accessed concurrently, this warning can be "
794 : "ignored, and the variable could also be declared with "
795 : "the SAVE attribute.",
796 : sym->name, &sym->declared_at);
797 :
798 138 : TREE_STATIC (decl) = 1;
799 :
800 : /* Because the size of this variable isn't known until now, we may have
801 : greedily added an initializer to this variable (in build_init_assign)
802 : even though the max-stack-var-size indicates the variable should be
803 : static. Therefore we rip out the automatic initializer here and
804 : replace it with a static one. */
805 138 : gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name);
806 138 : gfc_code *prev = NULL;
807 138 : gfc_code *code = sym->ns->code;
808 138 : while (code && code->op == EXEC_INIT_ASSIGN)
809 : {
810 : /* Look for an initializer meant for this symbol. */
811 8 : if (code->expr1->symtree == st)
812 : {
813 8 : if (prev)
814 0 : prev->next = code->next;
815 : else
816 8 : sym->ns->code = code->next;
817 :
818 : break;
819 : }
820 :
821 0 : prev = code;
822 0 : code = code->next;
823 : }
824 146 : if (code && code->op == EXEC_INIT_ASSIGN)
825 : {
826 : /* Keep the init expression for a static initializer. */
827 8 : sym->value = code->expr2;
828 : /* Cleanup the defunct code object, without freeing the init expr. */
829 8 : code->expr2 = NULL;
830 8 : gfc_free_statement (code);
831 8 : free (code);
832 : }
833 : }
834 :
835 182690 : if (sym->attr.omp_allocate && TREE_STATIC (decl))
836 : {
837 9 : struct gfc_omp_namelist *n;
838 35 : for (n = sym->ns->omp_allocate; n; n = n->next)
839 35 : if (n->sym == sym)
840 : break;
841 9 : tree alloc = gfc_conv_constant_to_tree (n->u2.allocator);
842 9 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align)
843 : : NULL_TREE);
844 9 : DECL_ATTRIBUTES (decl)
845 18 : = tree_cons (get_identifier ("omp allocate"),
846 9 : build_tree_list (alloc, align), DECL_ATTRIBUTES (decl));
847 : }
848 :
849 : /* Mark weak variables. */
850 182690 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
851 1 : declare_weak (decl);
852 :
853 : /* Handle threadprivate variables. */
854 182690 : if (sym->attr.threadprivate
855 182690 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
856 151 : set_decl_tls_model (decl, decl_default_tls_model (decl));
857 :
858 182690 : gfc_finish_decl_attrs (decl, &sym->attr);
859 : }
860 :
861 :
862 : /* Allocate the lang-specific part of a decl. */
863 :
864 : void
865 107283 : gfc_allocate_lang_decl (tree decl)
866 : {
867 107283 : if (DECL_LANG_SPECIFIC (decl) == NULL)
868 102020 : DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> ();
869 107283 : }
870 :
871 :
872 : /* Determine order of two symbol declarations. */
873 :
874 : static bool
875 5655 : decl_order (gfc_symbol *sym1, gfc_symbol *sym2)
876 : {
877 5655 : if (sym1->decl_order > sym2->decl_order)
878 : return true;
879 : else
880 0 : return false;
881 : }
882 :
883 :
884 : /* Remember a symbol to generate initialization/cleanup code at function
885 : entry/exit. */
886 :
887 : static void
888 81924 : gfc_defer_symbol_init (gfc_symbol * sym)
889 : {
890 81924 : gfc_symbol *p;
891 81924 : gfc_symbol *last;
892 81924 : gfc_symbol *head;
893 :
894 : /* Don't add a symbol twice. */
895 81924 : if (sym->tlink)
896 : return;
897 :
898 76596 : last = head = sym->ns->proc_name;
899 76596 : p = last->tlink;
900 :
901 76596 : gfc_function_dependency (sym, head);
902 :
903 : /* Make sure that setup code for dummy variables which are used in the
904 : setup of other variables is generated first. */
905 76596 : if (sym->attr.dummy)
906 : {
907 : /* Find the first dummy arg seen after us, or the first non-dummy arg.
908 : This is a circular list, so don't go past the head. */
909 : while (p != head
910 16658 : && (!p->attr.dummy || decl_order (p, sym)))
911 : {
912 3283 : last = p;
913 3283 : p = p->tlink;
914 : }
915 : }
916 63221 : else if (sym->fn_result_dep)
917 : {
918 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
919 : function result (ie. proc_name = proc_name->result), make sure that the
920 : order in the tlink chain is such that the code appears in declaration
921 : order. This ensures that mutual dependencies between these symbols are
922 : respected. */
923 : while (p != head
924 228 : && (!p->attr.result || decl_order (sym, p)))
925 : {
926 162 : last = p;
927 162 : p = p->tlink;
928 : }
929 : }
930 : /* Insert in between last and p. */
931 76596 : last->tlink = sym;
932 76596 : sym->tlink = p;
933 : }
934 :
935 :
936 : /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the
937 : backend_decl for a module symbol, if it all ready exists. If the
938 : module gsymbol does not exist, it is created. If the symbol does
939 : not exist, it is added to the gsymbol namespace. Returns true if
940 : an existing backend_decl is found. */
941 :
942 : bool
943 13762 : gfc_get_module_backend_decl (gfc_symbol *sym)
944 : {
945 13762 : gfc_gsymbol *gsym;
946 13762 : gfc_symbol *s;
947 13762 : gfc_symtree *st;
948 :
949 13762 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
950 :
951 13762 : if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE))
952 : {
953 13762 : st = NULL;
954 13762 : s = NULL;
955 :
956 : /* Check for a symbol with the same name. */
957 361 : if (gsym)
958 13401 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
959 :
960 13762 : if (!s)
961 : {
962 529 : if (!gsym)
963 : {
964 361 : gsym = gfc_get_gsymbol (sym->module, false);
965 361 : gsym->type = GSYM_MODULE;
966 361 : gsym->ns = gfc_get_namespace (NULL, 0);
967 : }
968 :
969 529 : st = gfc_new_symtree (&gsym->ns->sym_root, sym->name);
970 529 : st->n.sym = sym;
971 529 : sym->refs++;
972 : }
973 13233 : else if (gfc_fl_struct (sym->attr.flavor))
974 : {
975 10573 : if (s && s->attr.flavor == FL_PROCEDURE)
976 : {
977 5722 : gfc_interface *intr;
978 5722 : gcc_assert (s->attr.generic);
979 5867 : for (intr = s->generic; intr; intr = intr->next)
980 5867 : if (gfc_fl_struct (intr->sym->attr.flavor))
981 : {
982 5722 : s = intr->sym;
983 5722 : break;
984 : }
985 : }
986 :
987 : /* Normally we can assume that s is a derived-type symbol since it
988 : shares a name with the derived-type sym. However if sym is a
989 : STRUCTURE, it may in fact share a name with any other basic type
990 : variable. If s is in fact of derived type then we can continue
991 : looking for a duplicate type declaration. */
992 10573 : if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED)
993 : {
994 0 : s = s->ts.u.derived;
995 : }
996 :
997 10573 : if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl)
998 : {
999 25 : if (s->attr.flavor == FL_UNION)
1000 0 : s->backend_decl = gfc_get_union_type (s);
1001 : else
1002 25 : s->backend_decl = gfc_get_derived_type (s);
1003 : }
1004 10573 : gfc_copy_dt_decls_ifequal (s, sym, true);
1005 10573 : return true;
1006 : }
1007 2660 : else if (s->backend_decl)
1008 : {
1009 2648 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1010 526 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
1011 : true);
1012 2122 : else if (sym->ts.type == BT_CHARACTER)
1013 312 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
1014 2648 : sym->backend_decl = s->backend_decl;
1015 2648 : return true;
1016 : }
1017 : }
1018 : return false;
1019 : }
1020 :
1021 :
1022 : /* Create an array index type variable with function scope. */
1023 :
1024 : static tree
1025 45201 : create_index_var (const char * pfx, int nest)
1026 : {
1027 45201 : tree decl;
1028 :
1029 45201 : decl = gfc_create_var_np (gfc_array_index_type, pfx);
1030 45201 : if (nest)
1031 28 : gfc_add_decl_to_parent_function (decl);
1032 : else
1033 45173 : gfc_add_decl_to_function (decl);
1034 45201 : return decl;
1035 : }
1036 :
1037 :
1038 : /* Create variables to hold all the non-constant bits of info for a
1039 : descriptorless array. Remember these in the lang-specific part of the
1040 : type. */
1041 :
1042 : static void
1043 62447 : gfc_build_qualified_array (tree decl, gfc_symbol * sym)
1044 : {
1045 62447 : tree type;
1046 62447 : int dim;
1047 62447 : int nest;
1048 62447 : gfc_namespace* procns;
1049 62447 : symbol_attribute *array_attr;
1050 62447 : gfc_array_spec *as;
1051 62447 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1052 :
1053 62447 : type = TREE_TYPE (decl);
1054 62447 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1055 62447 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1056 :
1057 : /* We just use the descriptor, if there is one. */
1058 62447 : if (GFC_DESCRIPTOR_TYPE_P (type))
1059 : return;
1060 :
1061 46902 : gcc_assert (GFC_ARRAY_TYPE_P (type));
1062 46902 : procns = gfc_find_proc_namespace (sym->ns);
1063 93804 : nest = (procns->proc_name->backend_decl != current_function_decl)
1064 46902 : && !sym->attr.contained;
1065 :
1066 846 : if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB
1067 535 : && as->type != AS_ASSUMED_SHAPE
1068 47414 : && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE)
1069 : {
1070 512 : tree token;
1071 512 : tree token_type = build_qualified_type (pvoid_type_node,
1072 : TYPE_QUAL_RESTRICT);
1073 :
1074 512 : if (sym->module && (sym->attr.use_assoc
1075 22 : || sym->ns->proc_name->attr.flavor == FL_MODULE))
1076 : {
1077 27 : tree token_name
1078 27 : = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"),
1079 : IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym))));
1080 27 : token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name,
1081 : token_type);
1082 27 : if (sym->attr.use_assoc
1083 22 : || (sym->attr.host_assoc && sym->attr.used_in_submodule))
1084 7 : DECL_EXTERNAL (token) = 1;
1085 : else
1086 20 : TREE_STATIC (token) = 1;
1087 :
1088 27 : TREE_PUBLIC (token) = 1;
1089 :
1090 27 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
1091 : {
1092 0 : DECL_VISIBILITY (token) = VISIBILITY_HIDDEN;
1093 0 : DECL_VISIBILITY_SPECIFIED (token) = true;
1094 : }
1095 : }
1096 : else
1097 : {
1098 485 : token = gfc_create_var_np (token_type, "caf_token");
1099 485 : TREE_STATIC (token) = 1;
1100 : }
1101 :
1102 512 : GFC_TYPE_ARRAY_CAF_TOKEN (type) = token;
1103 512 : DECL_ARTIFICIAL (token) = 1;
1104 512 : DECL_NONALIASED (token) = 1;
1105 :
1106 512 : if (sym->module && !sym->attr.use_assoc)
1107 : {
1108 22 : module_htab_entry *mod
1109 22 : = cur_module ? cur_module : gfc_find_module (sym->module);
1110 22 : pushdecl (token);
1111 22 : DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl;
1112 22 : gfc_module_add_decl (mod, token);
1113 22 : }
1114 490 : else if (sym->attr.host_assoc
1115 490 : && TREE_CODE (DECL_CONTEXT (current_function_decl))
1116 : != TRANSLATION_UNIT_DECL)
1117 3 : gfc_add_decl_to_parent_function (token);
1118 : else
1119 487 : gfc_add_decl_to_function (token);
1120 : }
1121 :
1122 111833 : for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++)
1123 : {
1124 64931 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1125 : {
1126 521 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1127 521 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1128 : }
1129 : /* Don't try to use the unknown bound for assumed shape arrays. */
1130 64931 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1131 64931 : && (as->type != AS_ASSUMED_SIZE
1132 2111 : || dim < GFC_TYPE_ARRAY_RANK (type) - 1))
1133 : {
1134 18372 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1135 18372 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1136 : }
1137 :
1138 64931 : if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE)
1139 : {
1140 11000 : GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest);
1141 11000 : suppress_warning (GFC_TYPE_ARRAY_STRIDE (type, dim));
1142 : }
1143 : }
1144 48022 : for (dim = GFC_TYPE_ARRAY_RANK (type);
1145 48022 : dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++)
1146 : {
1147 1120 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1148 : {
1149 114 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1150 114 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1151 : }
1152 : /* Don't try to use the unknown ubound for the last coarray dimension. */
1153 1120 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1154 1120 : && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1)
1155 : {
1156 60 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1157 60 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1158 : }
1159 : }
1160 46902 : if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE)
1161 : {
1162 8501 : GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type,
1163 : "offset");
1164 8501 : suppress_warning (GFC_TYPE_ARRAY_OFFSET (type));
1165 :
1166 8501 : if (nest)
1167 8 : gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type));
1168 : else
1169 8493 : gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type));
1170 : }
1171 :
1172 63791 : if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE && as->rank != 0
1173 63750 : && as->type != AS_ASSUMED_SIZE)
1174 : {
1175 15134 : GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest);
1176 15134 : suppress_warning (GFC_TYPE_ARRAY_SIZE (type));
1177 : }
1178 :
1179 46902 : if (POINTER_TYPE_P (type))
1180 : {
1181 20426 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type)));
1182 20426 : gcc_assert (TYPE_LANG_SPECIFIC (type)
1183 : == TYPE_LANG_SPECIFIC (TREE_TYPE (type)));
1184 20426 : type = TREE_TYPE (type);
1185 : }
1186 :
1187 46902 : if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type))
1188 : {
1189 15134 : tree size, range;
1190 :
1191 45402 : size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
1192 15134 : GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node);
1193 15134 : range = build_range_type (gfc_array_index_type, gfc_index_zero_node,
1194 : size);
1195 15134 : TYPE_DOMAIN (type) = range;
1196 15134 : layout_type (type);
1197 : }
1198 :
1199 85250 : if (TYPE_NAME (type) != NULL_TREE && as->rank > 0
1200 37899 : && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE
1201 83475 : && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1)))
1202 : {
1203 7021 : tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type));
1204 :
1205 7409 : for (dim = 0; dim < as->rank - 1; dim++)
1206 : {
1207 388 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1208 388 : gtype = TREE_TYPE (gtype);
1209 : }
1210 7021 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1211 7021 : if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL)
1212 7021 : TYPE_NAME (type) = NULL_TREE;
1213 : }
1214 :
1215 46902 : if (TYPE_NAME (type) == NULL_TREE)
1216 : {
1217 15575 : tree gtype = TREE_TYPE (type), rtype, type_decl;
1218 :
1219 35886 : for (dim = as->rank - 1; dim >= 0; dim--)
1220 : {
1221 20311 : tree lbound, ubound;
1222 20311 : lbound = GFC_TYPE_ARRAY_LBOUND (type, dim);
1223 20311 : ubound = GFC_TYPE_ARRAY_UBOUND (type, dim);
1224 20311 : rtype = build_range_type (gfc_array_index_type, lbound, ubound);
1225 20311 : gtype = build_array_type (gtype, rtype);
1226 : /* Ensure the bound variables aren't optimized out at -O0.
1227 : For -O1 and above they often will be optimized out, but
1228 : can be tracked by VTA. Also set DECL_NAMELESS, so that
1229 : the artificial lbound.N or ubound.N DECL_NAME doesn't
1230 : end up in debug info. */
1231 20311 : if (lbound
1232 20311 : && VAR_P (lbound)
1233 521 : && DECL_ARTIFICIAL (lbound)
1234 20832 : && DECL_IGNORED_P (lbound))
1235 : {
1236 521 : if (DECL_NAME (lbound)
1237 521 : && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)),
1238 : "lbound") != 0)
1239 521 : DECL_NAMELESS (lbound) = 1;
1240 521 : DECL_IGNORED_P (lbound) = 0;
1241 : }
1242 20311 : if (ubound
1243 19923 : && VAR_P (ubound)
1244 18372 : && DECL_ARTIFICIAL (ubound)
1245 38683 : && DECL_IGNORED_P (ubound))
1246 : {
1247 18372 : if (DECL_NAME (ubound)
1248 18372 : && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)),
1249 : "ubound") != 0)
1250 18372 : DECL_NAMELESS (ubound) = 1;
1251 18372 : DECL_IGNORED_P (ubound) = 0;
1252 : }
1253 : }
1254 15575 : TYPE_NAME (type) = type_decl = build_decl (input_location,
1255 : TYPE_DECL, NULL, gtype);
1256 15575 : DECL_ORIGINAL_TYPE (type_decl) = gtype;
1257 : }
1258 : }
1259 :
1260 :
1261 : /* For some dummy arguments we don't use the actual argument directly.
1262 : Instead we create a local decl and use that. This allows us to perform
1263 : initialization, and construct full type information. */
1264 :
1265 : static tree
1266 24724 : gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy)
1267 : {
1268 24724 : tree decl;
1269 24724 : tree type;
1270 24724 : gfc_array_spec *as;
1271 24724 : symbol_attribute *array_attr;
1272 24724 : char *name;
1273 24724 : gfc_packed packed;
1274 24724 : int n;
1275 24724 : bool known_size;
1276 24724 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1277 :
1278 : /* Use the array as and attr. */
1279 24724 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1280 24724 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1281 :
1282 : /* The dummy is returned for pointer, allocatable or assumed rank arrays.
1283 : For class arrays the information if sym is an allocatable or pointer
1284 : object needs to be checked explicitly (IS_CLASS_ARRAY can be false for
1285 : too many reasons to be of use here). */
1286 24724 : if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
1287 22859 : || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer)
1288 22859 : || array_attr->allocatable
1289 17799 : || (as && as->type == AS_ASSUMED_RANK))
1290 : return dummy;
1291 :
1292 : /* Add to list of variables if not a fake result variable.
1293 : These symbols are set on the symbol only, not on the class component. */
1294 14073 : if (sym->attr.result || sym->attr.dummy)
1295 13469 : gfc_defer_symbol_init (sym);
1296 :
1297 : /* For a class array the array descriptor is in the _data component, while
1298 : for a regular array the TREE_TYPE of the dummy is a pointer to the
1299 : descriptor. */
1300 14073 : type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy)
1301 : : TREE_TYPE (dummy));
1302 : /* type now is the array descriptor w/o any indirection. */
1303 14073 : gcc_assert (TREE_CODE (dummy) == PARM_DECL
1304 : && POINTER_TYPE_P (TREE_TYPE (dummy)));
1305 :
1306 : /* Do we know the element size? */
1307 14073 : known_size = sym->ts.type != BT_CHARACTER
1308 14073 : || INTEGER_CST_P (sym->ts.u.cl->backend_decl);
1309 :
1310 13193 : if (known_size && !GFC_DESCRIPTOR_TYPE_P (type))
1311 : {
1312 : /* For descriptorless arrays with known element size the actual
1313 : argument is sufficient. */
1314 6741 : gfc_build_qualified_array (dummy, sym);
1315 6741 : return dummy;
1316 : }
1317 :
1318 7332 : if (GFC_DESCRIPTOR_TYPE_P (type))
1319 : {
1320 : /* Create a descriptorless array pointer. */
1321 6963 : packed = PACKED_NO;
1322 :
1323 : /* Even when -frepack-arrays is used, symbols with TARGET attribute
1324 : are not repacked. */
1325 6963 : if (!flag_repack_arrays || sym->attr.target)
1326 : {
1327 6961 : if (as->type == AS_ASSUMED_SIZE)
1328 79 : packed = PACKED_FULL;
1329 : }
1330 : else
1331 : {
1332 2 : if (as->type == AS_EXPLICIT)
1333 : {
1334 3 : packed = PACKED_FULL;
1335 3 : for (n = 0; n < as->rank; n++)
1336 : {
1337 2 : if (!(as->upper[n]
1338 2 : && as->lower[n]
1339 2 : && as->upper[n]->expr_type == EXPR_CONSTANT
1340 2 : && as->lower[n]->expr_type == EXPR_CONSTANT))
1341 : {
1342 : packed = PACKED_PARTIAL;
1343 : break;
1344 : }
1345 : }
1346 : }
1347 : else
1348 : packed = PACKED_PARTIAL;
1349 : }
1350 :
1351 : /* For classarrays the element type is required, but
1352 : gfc_typenode_for_spec () returns the array descriptor. */
1353 6963 : type = is_classarray ? gfc_get_element_type (type)
1354 6113 : : gfc_typenode_for_spec (&sym->ts);
1355 6963 : type = gfc_get_nodesc_array_type (type, as, packed,
1356 6963 : !sym->attr.target);
1357 : }
1358 : else
1359 : {
1360 : /* We now have an expression for the element size, so create a fully
1361 : qualified type. Reset sym->backend decl or this will just return the
1362 : old type. */
1363 369 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1364 369 : sym->backend_decl = NULL_TREE;
1365 369 : type = gfc_sym_type (sym);
1366 369 : packed = PACKED_FULL;
1367 : }
1368 :
1369 7332 : ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0);
1370 7332 : decl = build_decl (input_location,
1371 : VAR_DECL, get_identifier (name), type);
1372 :
1373 7332 : DECL_ARTIFICIAL (decl) = 1;
1374 7332 : DECL_NAMELESS (decl) = 1;
1375 7332 : TREE_PUBLIC (decl) = 0;
1376 7332 : TREE_STATIC (decl) = 0;
1377 7332 : DECL_EXTERNAL (decl) = 0;
1378 :
1379 : /* Avoid uninitialized warnings for optional dummy arguments. */
1380 7332 : if ((sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.optional)
1381 7332 : || sym->attr.optional)
1382 804 : suppress_warning (decl);
1383 :
1384 : /* We should never get deferred shape arrays here. We used to because of
1385 : frontend bugs. */
1386 7332 : gcc_assert (as->type != AS_DEFERRED);
1387 :
1388 7332 : if (packed == PACKED_PARTIAL)
1389 1 : GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1;
1390 7331 : else if (packed == PACKED_FULL)
1391 448 : GFC_DECL_PACKED_ARRAY (decl) = 1;
1392 :
1393 7332 : gfc_build_qualified_array (decl, sym);
1394 :
1395 7332 : if (DECL_LANG_SPECIFIC (dummy))
1396 982 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy);
1397 : else
1398 6350 : gfc_allocate_lang_decl (decl);
1399 :
1400 7332 : GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy;
1401 :
1402 7332 : if (sym->ns->proc_name->backend_decl == current_function_decl
1403 518 : || sym->attr.contained)
1404 7324 : gfc_add_decl_to_function (decl);
1405 : else
1406 8 : gfc_add_decl_to_parent_function (decl);
1407 :
1408 : return decl;
1409 : }
1410 :
1411 : /* Return a constant or a variable to use as a string length. Does not
1412 : add the decl to the current scope. */
1413 :
1414 : static tree
1415 15737 : gfc_create_string_length (gfc_symbol * sym)
1416 : {
1417 15737 : gcc_assert (sym->ts.u.cl);
1418 15737 : gfc_conv_const_charlen (sym->ts.u.cl);
1419 :
1420 15737 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1421 : {
1422 3473 : tree length;
1423 3473 : const char *name;
1424 :
1425 : /* The string length variable shall be in static memory if it is either
1426 : explicitly SAVED, a module variable or with -fno-automatic. Only
1427 : relevant is "len=:" - otherwise, it is either a constant length or
1428 : it is an automatic variable. */
1429 6946 : bool static_length = sym->attr.save
1430 3296 : || sym->ns->proc_name->attr.flavor == FL_MODULE
1431 6769 : || (flag_max_stack_var_size == 0
1432 2 : && sym->ts.deferred && !sym->attr.dummy
1433 0 : && !sym->attr.result && !sym->attr.function);
1434 :
1435 : /* Also prefix the mangled name. We need to call GFC_PREFIX for static
1436 : variables as some systems do not support the "." in the assembler name.
1437 : For nonstatic variables, the "." does not appear in assembler. */
1438 3296 : if (static_length)
1439 : {
1440 177 : if (sym->module)
1441 54 : name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module,
1442 : sym->name);
1443 : else
1444 123 : name = gfc_get_string (GFC_PREFIX ("%s"), sym->name);
1445 : }
1446 3296 : else if (sym->module)
1447 0 : name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name);
1448 : else
1449 3296 : name = gfc_get_string (".%s", sym->name);
1450 :
1451 3473 : length = build_decl (input_location,
1452 : VAR_DECL, get_identifier (name),
1453 : gfc_charlen_type_node);
1454 3473 : DECL_ARTIFICIAL (length) = 1;
1455 3473 : TREE_USED (length) = 1;
1456 3473 : if (sym->ns->proc_name->tlink != NULL)
1457 3222 : gfc_defer_symbol_init (sym);
1458 :
1459 3473 : sym->ts.u.cl->backend_decl = length;
1460 :
1461 3473 : if (static_length)
1462 177 : TREE_STATIC (length) = 1;
1463 :
1464 3473 : if (sym->ns->proc_name->attr.flavor == FL_MODULE
1465 54 : && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used))
1466 54 : TREE_PUBLIC (length) = 1;
1467 : }
1468 :
1469 15737 : gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE);
1470 15737 : return sym->ts.u.cl->backend_decl;
1471 : }
1472 :
1473 : /* If a variable is assigned a label, we add another two auxiliary
1474 : variables. */
1475 :
1476 : static void
1477 66 : gfc_add_assign_aux_vars (gfc_symbol * sym)
1478 : {
1479 66 : tree addr;
1480 66 : tree length;
1481 66 : tree decl;
1482 :
1483 66 : gcc_assert (sym->backend_decl);
1484 :
1485 66 : decl = sym->backend_decl;
1486 66 : gfc_allocate_lang_decl (decl);
1487 66 : GFC_DECL_ASSIGN (decl) = 1;
1488 66 : length = build_decl (input_location,
1489 : VAR_DECL, create_tmp_var_name (sym->name),
1490 : gfc_charlen_type_node);
1491 66 : addr = build_decl (input_location,
1492 : VAR_DECL, create_tmp_var_name (sym->name),
1493 : pvoid_type_node);
1494 66 : gfc_finish_var_decl (length, sym);
1495 66 : gfc_finish_var_decl (addr, sym);
1496 : /* STRING_LENGTH is also used as flag. Less than -1 means that
1497 : ASSIGN_ADDR cannot be used. Equal -1 means that ASSIGN_ADDR is the
1498 : target label's address. Otherwise, value is the length of a format string
1499 : and ASSIGN_ADDR is its address. */
1500 66 : if (TREE_STATIC (length))
1501 1 : DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2);
1502 : else
1503 65 : gfc_defer_symbol_init (sym);
1504 :
1505 66 : GFC_DECL_STRING_LEN (decl) = length;
1506 66 : GFC_DECL_ASSIGN_ADDR (decl) = addr;
1507 66 : }
1508 :
1509 :
1510 : static void
1511 284823 : add_attributes_to_decl (tree *decl_p, const gfc_symbol *sym)
1512 : {
1513 284823 : unsigned id;
1514 284823 : tree list = NULL_TREE;
1515 284823 : symbol_attribute sym_attr = sym->attr;
1516 :
1517 3133053 : for (id = 0; id < EXT_ATTR_NUM; id++)
1518 2848230 : if (sym_attr.ext_attr & (1 << id) && ext_attr_list[id].middle_end_name)
1519 : {
1520 0 : tree ident = get_identifier (ext_attr_list[id].middle_end_name);
1521 0 : list = tree_cons (ident, NULL_TREE, list);
1522 : }
1523 :
1524 284823 : tree clauses = NULL_TREE;
1525 :
1526 284823 : if (sym_attr.oacc_routine_lop != OACC_ROUTINE_LOP_NONE)
1527 : {
1528 355 : omp_clause_code code;
1529 355 : switch (sym_attr.oacc_routine_lop)
1530 : {
1531 : case OACC_ROUTINE_LOP_GANG:
1532 : code = OMP_CLAUSE_GANG;
1533 : break;
1534 : case OACC_ROUTINE_LOP_WORKER:
1535 : code = OMP_CLAUSE_WORKER;
1536 : break;
1537 : case OACC_ROUTINE_LOP_VECTOR:
1538 : code = OMP_CLAUSE_VECTOR;
1539 : break;
1540 : case OACC_ROUTINE_LOP_SEQ:
1541 : code = OMP_CLAUSE_SEQ;
1542 : break;
1543 0 : case OACC_ROUTINE_LOP_NONE:
1544 0 : case OACC_ROUTINE_LOP_ERROR:
1545 0 : default:
1546 0 : gcc_unreachable ();
1547 : }
1548 355 : tree c = build_omp_clause (UNKNOWN_LOCATION, code);
1549 355 : OMP_CLAUSE_CHAIN (c) = clauses;
1550 355 : clauses = c;
1551 :
1552 355 : tree dims = oacc_build_routine_dims (clauses);
1553 355 : list = oacc_replace_fn_attrib_attr (list, dims);
1554 : }
1555 :
1556 284823 : if (sym_attr.oacc_routine_nohost)
1557 : {
1558 40 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_NOHOST);
1559 40 : OMP_CLAUSE_CHAIN (c) = clauses;
1560 40 : clauses = c;
1561 : }
1562 :
1563 : /* FIXME: 'declare_target_link' permits both any and host, but
1564 : will fail if one sets OMP_CLAUSE_DEVICE_TYPE_KIND. */
1565 284823 : if (sym_attr.omp_device_type != OMP_DEVICE_TYPE_UNSET
1566 410 : && !sym_attr.omp_declare_target_link
1567 402 : && !sym_attr.omp_declare_target_indirect /* implies 'any' */)
1568 : {
1569 356 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_DEVICE_TYPE);
1570 356 : switch (sym_attr.omp_device_type)
1571 : {
1572 5 : case OMP_DEVICE_TYPE_HOST:
1573 5 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_HOST;
1574 5 : break;
1575 4 : case OMP_DEVICE_TYPE_NOHOST:
1576 4 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_NOHOST;
1577 4 : break;
1578 347 : case OMP_DEVICE_TYPE_ANY:
1579 347 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_ANY;
1580 347 : break;
1581 0 : default:
1582 0 : gcc_unreachable ();
1583 : }
1584 356 : OMP_CLAUSE_CHAIN (c) = clauses;
1585 356 : clauses = c;
1586 : }
1587 :
1588 : /* Also check trans-common.cc when updating/removing the following;
1589 : also update f95.c's gfc_gnu_attributes. */
1590 284823 : if (sym_attr.omp_groupprivate)
1591 6 : gfc_error ("Sorry, OMP GROUPPRIVATE not implemented, "
1592 6 : "used by %qs declared at %L", sym->name, &sym->declared_at);
1593 284817 : else if (sym_attr.omp_declare_target_local)
1594 : /* Use 'else if' as groupprivate implies 'local'. */
1595 0 : gfc_error ("Sorry, OMP DECLARE TARGET with LOCAL clause not implemented, "
1596 0 : "used by %qs declared at %L", sym->name, &sym->declared_at);
1597 :
1598 284823 : bool has_declare = true;
1599 284823 : if (sym_attr.omp_declare_target_link
1600 284815 : || sym_attr.oacc_declare_link)
1601 9 : list = tree_cons (get_identifier ("omp declare target link"),
1602 : clauses, list);
1603 284814 : else if (sym_attr.omp_declare_target
1604 283940 : || sym_attr.oacc_declare_create
1605 283897 : || sym_attr.oacc_declare_copyin
1606 283887 : || sym_attr.oacc_declare_deviceptr
1607 283887 : || sym_attr.oacc_declare_device_resident)
1608 943 : list = tree_cons (get_identifier ("omp declare target"),
1609 : clauses, list);
1610 : else
1611 : has_declare = false;
1612 :
1613 284823 : if (sym_attr.omp_declare_target_indirect)
1614 46 : list = tree_cons (get_identifier ("omp declare target indirect"),
1615 : clauses, list);
1616 :
1617 284823 : decl_attributes (decl_p, list, 0);
1618 :
1619 284823 : if (has_declare
1620 952 : && VAR_P (*decl_p)
1621 407 : && sym->ns->proc_name->attr.flavor != FL_MODULE)
1622 : {
1623 150 : has_declare = false;
1624 618 : for (gfc_namespace* ns = sym->ns->contained; ns; ns = ns->sibling)
1625 471 : if (ns->proc_name->attr.omp_declare_target)
1626 : {
1627 : has_declare = true;
1628 : break;
1629 : }
1630 : }
1631 :
1632 952 : if (has_declare && VAR_P (*decl_p) && has_declare)
1633 : {
1634 : /* Add to offload_vars; get_create does so for omp_declare_target,
1635 : omp_declare_target_link requires manual work. */
1636 260 : gcc_assert (symtab_node::get (*decl_p) == 0);
1637 260 : symtab_node *node = symtab_node::get_create (*decl_p);
1638 260 : if (node != NULL && sym_attr.omp_declare_target_link)
1639 : {
1640 8 : node->offloadable = 1;
1641 8 : if (ENABLE_OFFLOADING)
1642 : {
1643 : g->have_offload = true;
1644 : if (is_a <varpool_node *> (node))
1645 : vec_safe_push (offload_vars, *decl_p);
1646 : }
1647 : }
1648 : }
1649 284823 : }
1650 :
1651 :
1652 : static void build_function_decl (gfc_symbol * sym, bool global);
1653 :
1654 :
1655 : /* Return the decl for a gfc_symbol, create it if it doesn't already
1656 : exist. */
1657 :
1658 : tree
1659 1823953 : gfc_get_symbol_decl (gfc_symbol * sym)
1660 : {
1661 1823953 : tree decl;
1662 1823953 : tree length = NULL_TREE;
1663 1823953 : int byref;
1664 1823953 : bool intrinsic_array_parameter = false;
1665 1823953 : bool fun_or_res;
1666 :
1667 1823953 : gcc_assert (sym->attr.referenced
1668 : || sym->attr.flavor == FL_PROCEDURE
1669 : || sym->attr.use_assoc
1670 : || sym->attr.used_in_submodule
1671 : || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY
1672 : || (sym->module && sym->attr.if_source != IFSRC_DECL
1673 : && sym->backend_decl));
1674 :
1675 324148 : if (sym->attr.dummy && sym->ns->proc_name->attr.is_bind_c
1676 1847915 : && is_CFI_desc (sym, NULL))
1677 : {
1678 15489 : gcc_assert (sym->backend_decl && (sym->ts.type != BT_CHARACTER
1679 : || sym->ts.u.cl->backend_decl));
1680 : return sym->backend_decl;
1681 : }
1682 :
1683 1808464 : if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function)
1684 222455 : byref = gfc_return_by_reference (sym->ns->proc_name);
1685 : else
1686 : byref = 0;
1687 :
1688 : /* Make sure that the vtab for the declared type is completed. */
1689 1808464 : if (sym->ts.type == BT_CLASS)
1690 : {
1691 84364 : gfc_component *c = CLASS_DATA (sym);
1692 84364 : if (!c->ts.u.derived->backend_decl)
1693 : {
1694 2529 : gfc_find_derived_vtab (c->ts.u.derived);
1695 2529 : gfc_get_derived_type (sym->ts.u.derived);
1696 : }
1697 : }
1698 :
1699 : /* PDT parameterized array components and string_lengths must have the
1700 : 'len' parameters substituted for the expressions appearing in the
1701 : declaration of the entity and memory allocated/deallocated. */
1702 1808464 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1703 316702 : && sym->param_list != NULL
1704 4091 : && (gfc_current_ns == sym->ns
1705 2065 : || (gfc_current_ns == sym->ns->parent
1706 2065 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1707 2865 : && !(sym->attr.use_assoc || sym->attr.dummy))
1708 2606 : gfc_defer_symbol_init (sym);
1709 :
1710 1808464 : if ((sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_comp)
1711 68 : && (gfc_current_ns == sym->ns
1712 25 : || (gfc_current_ns == sym->ns->parent
1713 24 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1714 43 : && !(sym->attr.use_assoc || sym->attr.dummy))
1715 43 : gfc_defer_symbol_init (sym);
1716 :
1717 : /* Dummy PDT 'len' parameters should be checked when they are explicit. */
1718 1808464 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1719 316702 : && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
1720 10785 : && sym->param_list != NULL
1721 454 : && sym->attr.dummy)
1722 189 : gfc_defer_symbol_init (sym);
1723 :
1724 : /* All deferred character length procedures need to retain the backend
1725 : decl, which is a pointer to the character length in the caller's
1726 : namespace and to declare a local character length. */
1727 1808464 : if (!byref && sym->attr.function
1728 18995 : && sym->ts.type == BT_CHARACTER
1729 1373 : && sym->ts.deferred
1730 268 : && sym->ts.u.cl->passed_length == NULL
1731 12 : && sym->ts.u.cl->backend_decl
1732 0 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1733 : {
1734 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1735 0 : gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)));
1736 0 : sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1737 : }
1738 :
1739 17268 : fun_or_res = byref && (sym->attr.result
1740 13575 : || (sym->attr.function && sym->ts.deferred));
1741 1808464 : if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res)
1742 : {
1743 : /* Return via extra parameter. */
1744 311798 : if (sym->attr.result && byref
1745 3693 : && !sym->backend_decl)
1746 : {
1747 2368 : sym->backend_decl =
1748 1184 : DECL_ARGUMENTS (sym->ns->proc_name->backend_decl);
1749 : /* For entry master function skip over the __entry
1750 : argument. */
1751 1184 : if (sym->ns->proc_name->attr.entry_master)
1752 83 : sym->backend_decl = DECL_CHAIN (sym->backend_decl);
1753 : }
1754 :
1755 : /* Automatic array indices in module procedures need the backend_decl
1756 : to be extracted from the procedure formal arglist. */
1757 311798 : if (sym->attr.dummy && !sym->backend_decl)
1758 : {
1759 12 : gfc_formal_arglist *f;
1760 18 : for (f = sym->ns->proc_name->formal; f; f = f->next)
1761 : {
1762 18 : gfc_symbol *fsym = f->sym;
1763 18 : if (strcmp (sym->name, fsym->name))
1764 6 : continue;
1765 12 : sym->backend_decl = fsym->backend_decl;
1766 12 : break;
1767 : }
1768 : }
1769 :
1770 : /* Dummy variables should already have been created. */
1771 311798 : gcc_assert (sym->backend_decl);
1772 :
1773 : /* However, the string length of deferred arrays must be set. */
1774 311798 : if (sym->ts.type == BT_CHARACTER
1775 28840 : && sym->ts.deferred
1776 3601 : && sym->attr.dimension
1777 1336 : && sym->attr.allocatable)
1778 530 : gfc_defer_symbol_init (sym);
1779 :
1780 311798 : if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS)
1781 10059 : GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1;
1782 :
1783 : /* Create a character length variable. */
1784 311798 : if (sym->ts.type == BT_CHARACTER)
1785 : {
1786 : /* For a deferred dummy, make a new string length variable. */
1787 28840 : if (sym->ts.deferred
1788 3601 : &&
1789 3601 : (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl))
1790 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1791 :
1792 28840 : if (sym->ts.deferred && byref)
1793 : {
1794 : /* The string length of a deferred char array is stored in the
1795 : parameter at sym->ts.u.cl->backend_decl as a reference and
1796 : marked as a result. Exempt this variable from generating a
1797 : temporary for it. */
1798 747 : if (sym->attr.result)
1799 : {
1800 : /* We need to insert a indirect ref for param decls. */
1801 660 : if (sym->ts.u.cl->backend_decl
1802 660 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1803 : {
1804 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1805 0 : sym->ts.u.cl->backend_decl =
1806 0 : build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1807 : }
1808 : }
1809 : /* For all other parameters make sure, that they are copied so
1810 : that the value and any modifications are local to the routine
1811 : by generating a temporary variable. */
1812 87 : else if (sym->attr.function
1813 75 : && sym->ts.u.cl->passed_length == NULL
1814 0 : && sym->ts.u.cl->backend_decl)
1815 : {
1816 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1817 0 : if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)))
1818 0 : sym->ts.u.cl->backend_decl
1819 0 : = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1820 : else
1821 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1822 : }
1823 : }
1824 :
1825 28840 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1826 1 : length = gfc_create_string_length (sym);
1827 : else
1828 28839 : length = sym->ts.u.cl->backend_decl;
1829 28840 : if (VAR_P (length) && DECL_FILE_SCOPE_P (length))
1830 : {
1831 : /* Add the string length to the same context as the symbol. */
1832 688 : if (DECL_CONTEXT (length) == NULL_TREE)
1833 : {
1834 688 : if (sym->backend_decl == current_function_decl
1835 688 : || (DECL_CONTEXT (sym->backend_decl)
1836 : == current_function_decl))
1837 687 : gfc_add_decl_to_function (length);
1838 : else
1839 1 : gfc_add_decl_to_parent_function (length);
1840 : }
1841 :
1842 688 : gcc_assert (sym->backend_decl == current_function_decl
1843 : ? DECL_CONTEXT (length) == current_function_decl
1844 : : (DECL_CONTEXT (sym->backend_decl)
1845 : == DECL_CONTEXT (length)));
1846 :
1847 688 : gfc_defer_symbol_init (sym);
1848 : }
1849 : }
1850 :
1851 : /* Use a copy of the descriptor for dummy arrays. */
1852 311798 : if ((sym->attr.dimension || sym->attr.codimension)
1853 106740 : && !TREE_USED (sym->backend_decl))
1854 : {
1855 19725 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1856 : /* Prevent the dummy from being detected as unused if it is copied. */
1857 19725 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1858 5509 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1859 19725 : sym->backend_decl = decl;
1860 : }
1861 :
1862 : /* Returning the descriptor for dummy class arrays is hazardous, because
1863 : some caller is expecting an expression to apply the component refs to.
1864 : Therefore the descriptor is only created and stored in
1865 : sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then
1866 : responsible to extract it from there, when the descriptor is
1867 : desired. */
1868 26705 : if (IS_CLASS_COARRAY_OR_ARRAY (sym)
1869 321901 : && (!DECL_LANG_SPECIFIC (sym->backend_decl)
1870 7793 : || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl)))
1871 : {
1872 4192 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1873 : /* Prevent the dummy from being detected as unused if it is copied. */
1874 4192 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1875 850 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1876 4192 : sym->backend_decl = decl;
1877 : }
1878 :
1879 311798 : TREE_USED (sym->backend_decl) = 1;
1880 311798 : if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1881 6 : gfc_add_assign_aux_vars (sym);
1882 :
1883 311798 : if (sym->ts.type == BT_CLASS && sym->backend_decl
1884 26705 : && !IS_CLASS_COARRAY_OR_ARRAY (sym))
1885 16602 : GFC_DECL_CLASS (sym->backend_decl) = 1;
1886 :
1887 311798 : return sym->backend_decl;
1888 : }
1889 :
1890 15617 : if (sym->result == sym && sym->attr.assign
1891 1496671 : && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1892 1 : gfc_add_assign_aux_vars (sym);
1893 :
1894 1496666 : if (sym->backend_decl)
1895 : return sym->backend_decl;
1896 :
1897 : /* Special case for array-valued named constants from intrinsic
1898 : procedures; those are inlined. */
1899 197502 : if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER
1900 138 : && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV
1901 138 : || sym->from_intmod == INTMOD_ISO_C_BINDING))
1902 197502 : intrinsic_array_parameter = true;
1903 :
1904 : /* If use associated compilation, use the module
1905 : declaration. */
1906 197502 : if ((sym->attr.flavor == FL_VARIABLE
1907 16771 : || sym->attr.flavor == FL_PARAMETER)
1908 182284 : && (sym->attr.use_assoc || sym->attr.used_in_submodule)
1909 2772 : && !intrinsic_array_parameter
1910 2763 : && sym->module
1911 200265 : && gfc_get_module_backend_decl (sym))
1912 : {
1913 2648 : if (sym->ts.type == BT_CLASS && sym->backend_decl)
1914 39 : GFC_DECL_CLASS(sym->backend_decl) = 1;
1915 2648 : return sym->backend_decl;
1916 : }
1917 :
1918 194854 : if (sym->attr.flavor == FL_PROCEDURE)
1919 : {
1920 : /* Catch functions. Only used for actual parameters,
1921 : procedure pointers and procptr initialization targets. */
1922 15216 : if (sym->attr.use_assoc
1923 14388 : || sym->attr.used_in_submodule
1924 14382 : || sym->attr.intrinsic
1925 13091 : || sym->attr.if_source != IFSRC_DECL)
1926 : {
1927 3103 : decl = gfc_get_extern_function_decl (sym);
1928 : }
1929 : else
1930 : {
1931 12113 : if (!sym->backend_decl)
1932 12113 : build_function_decl (sym, false);
1933 12113 : decl = sym->backend_decl;
1934 : }
1935 15216 : return decl;
1936 : }
1937 :
1938 179638 : if (sym->ts.type == BT_UNKNOWN)
1939 0 : gfc_fatal_error ("%s at %L has no default type", sym->name,
1940 : &sym->declared_at);
1941 :
1942 179638 : if (sym->attr.intrinsic)
1943 0 : gfc_internal_error ("intrinsic variable which isn't a procedure");
1944 :
1945 : /* Create string length decl first so that they can be used in the
1946 : type declaration. For associate names, the target character
1947 : length is used. Set 'length' to a constant so that if the
1948 : string length is a variable, it is not finished a second time. */
1949 179638 : if (sym->ts.type == BT_CHARACTER)
1950 : {
1951 15751 : if (sym->attr.associate_var
1952 1772 : && sym->ts.deferred
1953 340 : && sym->assoc && sym->assoc->target
1954 340 : && ((sym->assoc->target->expr_type == EXPR_VARIABLE
1955 230 : && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER)
1956 297 : || sym->assoc->target->expr_type != EXPR_VARIABLE))
1957 153 : sym->ts.u.cl->backend_decl = NULL_TREE;
1958 :
1959 15751 : if (sym->attr.associate_var
1960 1772 : && sym->ts.u.cl->backend_decl
1961 627 : && (VAR_P (sym->ts.u.cl->backend_decl)
1962 362 : || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL))
1963 313 : length = gfc_index_zero_node;
1964 : else
1965 15438 : length = gfc_create_string_length (sym);
1966 : }
1967 :
1968 : /* Create the decl for the variable. */
1969 179638 : decl = build_decl (gfc_get_location (&sym->declared_at),
1970 : VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym));
1971 :
1972 : /* Symbols from modules should have their assembler names mangled.
1973 : This is done here rather than in gfc_finish_var_decl because it
1974 : is different for string length variables. */
1975 179638 : if (sym->module || sym->fn_result_spec)
1976 : {
1977 19237 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
1978 19237 : if (sym->attr.use_assoc && !intrinsic_array_parameter)
1979 112 : DECL_IGNORED_P (decl) = 1;
1980 : }
1981 :
1982 179638 : if (sym->attr.select_type_temporary)
1983 : {
1984 5636 : DECL_ARTIFICIAL (decl) = 1;
1985 5636 : DECL_IGNORED_P (decl) = 1;
1986 : }
1987 :
1988 179638 : if (sym->attr.dimension || sym->attr.codimension)
1989 : {
1990 : /* Create variables to hold the non-constant bits of array info. */
1991 48120 : gfc_build_qualified_array (decl, sym);
1992 :
1993 48120 : if (sym->attr.contiguous
1994 48051 : || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer))
1995 43386 : GFC_DECL_PACKED_ARRAY (decl) = 1;
1996 : }
1997 :
1998 : /* Remember this variable for allocation/cleanup. */
1999 131968 : if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension
2000 129231 : || (sym->ts.type == BT_CLASS &&
2001 4748 : (CLASS_DATA (sym)->attr.dimension
2002 2691 : || CLASS_DATA (sym)->attr.allocatable))
2003 125745 : || (sym->ts.type == BT_DERIVED
2004 29893 : && (sym->ts.u.derived->attr.alloc_comp
2005 23640 : || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save
2006 5238 : && !sym->ns->proc_name->attr.is_main_program
2007 2129 : && gfc_is_finalizable (sym->ts.u.derived, NULL))))
2008 : /* This applies a derived type default initializer. */
2009 298881 : || (sym->ts.type == BT_DERIVED
2010 23391 : && sym->attr.save == SAVE_NONE
2011 6545 : && !sym->attr.data
2012 6496 : && !sym->attr.allocatable
2013 6496 : && (sym->value && !sym->ns->proc_name->attr.is_main_program)
2014 520 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)))
2015 60915 : gfc_defer_symbol_init (sym);
2016 :
2017 : /* Set the vptr of unlimited polymorphic pointer variables so that
2018 : they do not cause segfaults in select type, when the selector
2019 : is an intrinsic type. Arrays are captured above. */
2020 179638 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
2021 1112 : && CLASS_DATA (sym)->attr.class_pointer
2022 677 : && !CLASS_DATA (sym)->attr.dimension && !sym->attr.dummy
2023 301 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc)
2024 170 : gfc_defer_symbol_init (sym);
2025 :
2026 179638 : if (sym->ts.type == BT_CHARACTER
2027 15751 : && sym->attr.allocatable
2028 1904 : && !sym->attr.dimension
2029 977 : && sym->ts.u.cl && sym->ts.u.cl->length
2030 198 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
2031 27 : gfc_defer_symbol_init (sym);
2032 :
2033 : /* Associate names can use the hidden string length variable
2034 : of their associated target. */
2035 179638 : if (sym->ts.type == BT_CHARACTER
2036 15751 : && TREE_CODE (length) != INTEGER_CST
2037 3268 : && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF)
2038 : {
2039 3208 : length = fold_convert (gfc_charlen_type_node, length);
2040 3208 : gfc_finish_var_decl (length, sym);
2041 3208 : if (!sym->attr.associate_var
2042 2183 : && VAR_P (length)
2043 2183 : && sym->value && sym->value->expr_type != EXPR_NULL
2044 6 : && sym->value->ts.u.cl->length)
2045 : {
2046 6 : gfc_expr *len = sym->value->ts.u.cl->length;
2047 6 : DECL_INITIAL (length) = gfc_conv_initializer (len, &len->ts,
2048 6 : TREE_TYPE (length),
2049 : false, false, false);
2050 6 : DECL_INITIAL (length) = fold_convert (gfc_charlen_type_node,
2051 : DECL_INITIAL (length));
2052 6 : }
2053 : else
2054 3202 : gcc_assert (!sym->value || sym->value->expr_type == EXPR_NULL);
2055 : }
2056 :
2057 179638 : gfc_finish_var_decl (decl, sym);
2058 :
2059 179638 : if (sym->ts.type == BT_CHARACTER)
2060 : /* Character variables need special handling. */
2061 15751 : gfc_allocate_lang_decl (decl);
2062 :
2063 179638 : if (sym->assoc && sym->attr.subref_array_pointer)
2064 392 : sym->attr.pointer = 1;
2065 :
2066 179638 : if (sym->attr.pointer && sym->attr.dimension
2067 4901 : && !sym->ts.deferred
2068 4612 : && !(sym->attr.select_type_temporary
2069 1088 : && !sym->attr.subref_array_pointer))
2070 3674 : GFC_DECL_PTR_ARRAY_P (decl) = 1;
2071 :
2072 179638 : if (sym->ts.type == BT_CLASS)
2073 4748 : GFC_DECL_CLASS(decl) = 1;
2074 :
2075 179638 : sym->backend_decl = decl;
2076 :
2077 179638 : if (sym->attr.assign)
2078 59 : gfc_add_assign_aux_vars (sym);
2079 :
2080 179638 : if (intrinsic_array_parameter)
2081 : {
2082 9 : TREE_STATIC (decl) = 1;
2083 9 : DECL_EXTERNAL (decl) = 0;
2084 : }
2085 :
2086 179638 : if (TREE_STATIC (decl)
2087 40433 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)
2088 40433 : && (sym->attr.save || sym->ns->proc_name->attr.is_main_program
2089 1641 : || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
2090 1602 : || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE)
2091 40263 : && (flag_coarray != GFC_FCOARRAY_LIB
2092 2127 : || !sym->attr.codimension || sym->attr.allocatable)
2093 219560 : && !(IS_PDT (sym) || IS_CLASS_PDT (sym)))
2094 : {
2095 : /* Add static initializer. For procedures, it is only needed if
2096 : SAVE is specified otherwise they need to be reinitialized
2097 : every time the procedure is entered. The TREE_STATIC is
2098 : in this case due to -fmax-stack-var-size=. */
2099 :
2100 39399 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2101 39399 : TREE_TYPE (decl), sym->attr.dimension
2102 39399 : || (sym->attr.codimension
2103 35 : && sym->attr.allocatable),
2104 38872 : sym->attr.pointer || sym->attr.allocatable
2105 38459 : || sym->ts.type == BT_CLASS,
2106 39399 : sym->attr.proc_pointer);
2107 : }
2108 :
2109 179638 : if (!TREE_STATIC (decl)
2110 139205 : && POINTER_TYPE_P (TREE_TYPE (decl))
2111 18218 : && !sym->attr.pointer
2112 12515 : && !sym->attr.allocatable
2113 10339 : && !sym->attr.proc_pointer
2114 189977 : && !sym->attr.select_type_temporary)
2115 7910 : DECL_BY_REFERENCE (decl) = 1;
2116 :
2117 179638 : if (sym->attr.associate_var)
2118 7196 : GFC_DECL_ASSOCIATE_VAR_P (decl) = 1;
2119 :
2120 : /* We only longer mark __def_init as read-only if it actually has an
2121 : initializer, it does not needlessly take up space in the
2122 : read-only section and can go into the BSS instead, see PR 84487.
2123 : Marking this as artificial means that OpenMP will treat this as
2124 : predetermined shared. */
2125 :
2126 179638 : bool def_init = startswith (sym->name, "__def_init");
2127 :
2128 179638 : if (sym->attr.vtab || def_init)
2129 : {
2130 19337 : DECL_ARTIFICIAL (decl) = 1;
2131 19337 : if (def_init && sym->value)
2132 3532 : TREE_READONLY (decl) = 1;
2133 : }
2134 :
2135 : /* Add attributes to variables. Functions are handled elsewhere. */
2136 179638 : add_attributes_to_decl (&decl, sym);
2137 :
2138 179638 : if (sym->ts.deferred && VAR_P (length))
2139 1828 : decl_attributes (&length, DECL_ATTRIBUTES (decl), 0);
2140 :
2141 179638 : return decl;
2142 : }
2143 :
2144 :
2145 : /* Substitute a temporary variable in place of the real one. */
2146 :
2147 : void
2148 5822 : gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save)
2149 : {
2150 5822 : save->attr = sym->attr;
2151 5822 : save->decl = sym->backend_decl;
2152 :
2153 5822 : gfc_clear_attr (&sym->attr);
2154 5822 : sym->attr.referenced = 1;
2155 5822 : sym->attr.flavor = FL_VARIABLE;
2156 :
2157 5822 : sym->backend_decl = decl;
2158 5822 : }
2159 :
2160 :
2161 : /* Restore the original variable. */
2162 :
2163 : void
2164 5822 : gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save)
2165 : {
2166 5822 : sym->attr = save->attr;
2167 5822 : sym->backend_decl = save->decl;
2168 5822 : }
2169 :
2170 :
2171 : /* Declare a procedure pointer. */
2172 :
2173 : static tree
2174 690 : get_proc_pointer_decl (gfc_symbol *sym)
2175 : {
2176 690 : tree decl;
2177 :
2178 690 : if (sym->module || sym->fn_result_spec)
2179 : {
2180 149 : const char *name;
2181 149 : gfc_gsymbol *gsym;
2182 :
2183 149 : name = mangled_identifier (sym);
2184 149 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
2185 149 : if (gsym != NULL)
2186 : {
2187 79 : gfc_symbol *s;
2188 79 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2189 79 : if (s && s->backend_decl)
2190 79 : return s->backend_decl;
2191 : }
2192 : }
2193 :
2194 611 : decl = sym->backend_decl;
2195 611 : if (decl)
2196 : return decl;
2197 :
2198 611 : decl = build_decl (input_location,
2199 : VAR_DECL, get_identifier (sym->name),
2200 : build_pointer_type (gfc_get_function_type (sym)));
2201 :
2202 611 : if (sym->module)
2203 : {
2204 : /* Apply name mangling. */
2205 70 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
2206 70 : if (sym->attr.use_assoc)
2207 0 : DECL_IGNORED_P (decl) = 1;
2208 : }
2209 :
2210 611 : if ((sym->ns->proc_name
2211 611 : && sym->ns->proc_name->backend_decl == current_function_decl)
2212 76 : || sym->attr.contained)
2213 535 : gfc_add_decl_to_function (decl);
2214 76 : else if (sym->ns->proc_name->attr.flavor != FL_MODULE)
2215 6 : gfc_add_decl_to_parent_function (decl);
2216 :
2217 611 : sym->backend_decl = decl;
2218 :
2219 : /* If a variable is USE associated, it's always external. */
2220 611 : if (sym->attr.use_assoc)
2221 : {
2222 0 : DECL_EXTERNAL (decl) = 1;
2223 0 : TREE_PUBLIC (decl) = 1;
2224 : }
2225 611 : else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE)
2226 : {
2227 : /* This is the declaration of a module variable. */
2228 70 : TREE_PUBLIC (decl) = 1;
2229 70 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
2230 : {
2231 8 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
2232 8 : DECL_VISIBILITY_SPECIFIED (decl) = true;
2233 : }
2234 70 : TREE_STATIC (decl) = 1;
2235 : }
2236 :
2237 611 : if (!sym->attr.use_assoc
2238 611 : && (sym->attr.save != SAVE_NONE || sym->attr.data
2239 490 : || (sym->value && sym->ns->proc_name->attr.is_main_program)))
2240 121 : TREE_STATIC (decl) = 1;
2241 :
2242 611 : if (TREE_STATIC (decl) && sym->value)
2243 : {
2244 : /* Add static initializer. */
2245 81 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2246 81 : TREE_TYPE (decl),
2247 81 : sym->attr.dimension,
2248 : false, true);
2249 : }
2250 :
2251 611 : add_attributes_to_decl (&decl, sym);
2252 :
2253 : /* Handle threadprivate procedure pointers. */
2254 611 : if (sym->attr.threadprivate
2255 611 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
2256 12 : set_decl_tls_model (decl, decl_default_tls_model (decl));
2257 :
2258 611 : return decl;
2259 : }
2260 :
2261 : static void
2262 : create_function_arglist (gfc_symbol *sym);
2263 :
2264 : /* Get a basic decl for an external function. */
2265 :
2266 : tree
2267 36536 : gfc_get_extern_function_decl (gfc_symbol * sym, gfc_actual_arglist *actual_args,
2268 : const char *fnspec)
2269 : {
2270 36536 : tree type;
2271 36536 : tree fndecl;
2272 36536 : gfc_expr e;
2273 36536 : gfc_intrinsic_sym *isym;
2274 36536 : gfc_expr argexpr;
2275 36536 : char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */
2276 36536 : tree name;
2277 36536 : tree mangled_name;
2278 36536 : gfc_gsymbol *gsym;
2279 :
2280 36536 : if (sym->backend_decl)
2281 : return sym->backend_decl;
2282 :
2283 : /* We should never be creating external decls for alternate entry points.
2284 : The procedure may be an alternate entry point, but we don't want/need
2285 : to know that. */
2286 36536 : gcc_assert (!(sym->attr.entry || sym->attr.entry_master));
2287 :
2288 36536 : if (sym->attr.proc_pointer)
2289 690 : return get_proc_pointer_decl (sym);
2290 :
2291 : /* See if this is an external procedure from the same file. If so,
2292 : return the backend_decl. If we are looking at a BIND(C)
2293 : procedure and the symbol is not BIND(C), or vice versa, we
2294 : haven't found the right procedure. */
2295 :
2296 35846 : if (sym->binding_label)
2297 : {
2298 2567 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label);
2299 2567 : if (gsym && !gsym->bind_c)
2300 : gsym = NULL;
2301 : }
2302 33279 : else if (sym->module == NULL)
2303 : {
2304 19842 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name);
2305 19842 : if (gsym && gsym->bind_c)
2306 : gsym = NULL;
2307 : }
2308 : else
2309 : {
2310 : /* Procedure from a different module. */
2311 : gsym = NULL;
2312 : }
2313 :
2314 10922 : if (gsym && !gsym->defined)
2315 : gsym = NULL;
2316 :
2317 : /* This can happen because of C binding. */
2318 7787 : if (gsym && gsym->ns && gsym->ns->proc_name
2319 7787 : && gsym->ns->proc_name->attr.flavor == FL_MODULE)
2320 557 : goto module_sym;
2321 :
2322 35289 : if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL)
2323 25578 : && !sym->backend_decl
2324 25578 : && gsym && gsym->ns
2325 7230 : && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION))
2326 7230 : && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic))
2327 : {
2328 7230 : if (!gsym->ns->proc_name->backend_decl)
2329 : {
2330 : /* By construction, the external function cannot be
2331 : a contained procedure. */
2332 774 : location_t old_loc = input_location;
2333 774 : push_cfun (NULL);
2334 :
2335 774 : gfc_create_function_decl (gsym->ns, true);
2336 :
2337 774 : pop_cfun ();
2338 774 : input_location = old_loc;
2339 : }
2340 :
2341 : /* If the namespace has entries, the proc_name is the
2342 : entry master. Find the entry and use its backend_decl.
2343 : otherwise, use the proc_name backend_decl. */
2344 7230 : if (gsym->ns->entries)
2345 : {
2346 : gfc_entry_list *entry = gsym->ns->entries;
2347 :
2348 1315 : for (; entry; entry = entry->next)
2349 : {
2350 1315 : if (strcmp (gsym->name, entry->sym->name) == 0)
2351 : {
2352 797 : sym->backend_decl = entry->sym->backend_decl;
2353 797 : break;
2354 : }
2355 : }
2356 : }
2357 : else
2358 6433 : sym->backend_decl = gsym->ns->proc_name->backend_decl;
2359 :
2360 7230 : if (sym->backend_decl)
2361 : {
2362 : /* Avoid problems of double deallocation of the backend declaration
2363 : later in gfc_trans_use_stmts; cf. PR 45087. */
2364 7230 : if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc)
2365 0 : sym->attr.use_assoc = 0;
2366 :
2367 7230 : return sym->backend_decl;
2368 : }
2369 : }
2370 :
2371 : /* See if this is a module procedure from the same file. If so,
2372 : return the backend_decl. */
2373 28059 : if (sym->module)
2374 14307 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
2375 :
2376 28616 : module_sym:
2377 28616 : if (gsym && gsym->ns
2378 11490 : && (gsym->type == GSYM_MODULE
2379 557 : || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE)))
2380 : {
2381 11490 : gfc_symbol *s;
2382 :
2383 11490 : s = NULL;
2384 11490 : if (gsym->type == GSYM_MODULE)
2385 10933 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2386 : else
2387 557 : gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s);
2388 :
2389 11490 : if (s && s->backend_decl)
2390 : {
2391 9472 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
2392 1130 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
2393 : true);
2394 8342 : else if (sym->ts.type == BT_CHARACTER)
2395 411 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
2396 9472 : sym->backend_decl = s->backend_decl;
2397 9472 : return sym->backend_decl;
2398 : }
2399 : }
2400 :
2401 19144 : if (sym->attr.intrinsic)
2402 : {
2403 : /* Call the resolution function to get the actual name. This is
2404 : a nasty hack which relies on the resolution functions only looking
2405 : at the first argument. We pass NULL for the second argument
2406 : otherwise things like AINT get confused. */
2407 1292 : isym = gfc_find_function (sym->name);
2408 1292 : gcc_assert (isym->resolve.f0 != NULL);
2409 :
2410 1292 : memset (&e, 0, sizeof (e));
2411 1292 : e.expr_type = EXPR_FUNCTION;
2412 :
2413 1292 : memset (&argexpr, 0, sizeof (argexpr));
2414 1292 : gcc_assert (isym->formal);
2415 1292 : argexpr.ts = isym->formal->ts;
2416 :
2417 1292 : if (isym->formal->next == NULL)
2418 1045 : isym->resolve.f1 (&e, &argexpr);
2419 : else
2420 : {
2421 247 : if (isym->formal->next->next == NULL)
2422 231 : isym->resolve.f2 (&e, &argexpr, NULL);
2423 : else
2424 : {
2425 16 : if (isym->formal->next->next->next == NULL)
2426 0 : isym->resolve.f3 (&e, &argexpr, NULL, NULL);
2427 : else
2428 : {
2429 : /* All specific intrinsics take less than 5 arguments. */
2430 16 : gcc_assert (isym->formal->next->next->next->next == NULL);
2431 16 : isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL);
2432 : }
2433 : }
2434 : }
2435 :
2436 1292 : if (flag_f2c
2437 438 : && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind)
2438 300 : || e.ts.type == BT_COMPLEX))
2439 : {
2440 : /* Specific which needs a different implementation if f2c
2441 : calling conventions are used. */
2442 240 : sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name);
2443 : }
2444 : else
2445 1052 : sprintf (s, "_gfortran_specific%s", e.value.function.name);
2446 :
2447 1292 : name = get_identifier (s);
2448 1292 : mangled_name = name;
2449 : }
2450 : else
2451 : {
2452 17852 : name = gfc_sym_identifier (sym);
2453 17852 : mangled_name = gfc_sym_mangled_function_id (sym);
2454 : }
2455 :
2456 19144 : type = gfc_get_function_type (sym, actual_args, fnspec);
2457 :
2458 19144 : fndecl = build_decl (gfc_get_location (&sym->declared_at),
2459 : FUNCTION_DECL, name, type);
2460 :
2461 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2462 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2463 : the opposite of declaring a function as static in C). */
2464 19144 : DECL_EXTERNAL (fndecl) = 1;
2465 19144 : TREE_PUBLIC (fndecl) = 1;
2466 :
2467 19144 : add_attributes_to_decl (&fndecl, sym);
2468 :
2469 19144 : gfc_set_decl_assembler_name (fndecl, mangled_name);
2470 :
2471 : /* Set the context of this decl. */
2472 19144 : if (0 && sym->ns && sym->ns->proc_name)
2473 : {
2474 : /* TODO: Add external decls to the appropriate scope. */
2475 : DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl;
2476 : }
2477 : else
2478 : {
2479 : /* Global declaration, e.g. intrinsic subroutine. */
2480 19144 : DECL_CONTEXT (fndecl) = NULL_TREE;
2481 : }
2482 :
2483 : /* Set attributes for PURE functions. A call to PURE function in the
2484 : Fortran 95 sense is both pure and without side effects in the C
2485 : sense. */
2486 19144 : if (sym->attr.pure || sym->attr.implicit_pure)
2487 : {
2488 2078 : if (sym->attr.function && !gfc_return_by_reference (sym))
2489 1848 : DECL_PURE_P (fndecl) = 1;
2490 : /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT)
2491 : parameters and don't use alternate returns (is this
2492 : allowed?). In that case, calls to them are meaningless, and
2493 : can be optimized away. See also in build_function_decl(). */
2494 2078 : TREE_SIDE_EFFECTS (fndecl) = 0;
2495 : }
2496 :
2497 : /* Mark non-returning functions. */
2498 19144 : if (sym->attr.noreturn || sym->attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2499 111 : TREE_THIS_VOLATILE(fndecl) = 1;
2500 :
2501 19144 : sym->backend_decl = fndecl;
2502 :
2503 19144 : if (DECL_CONTEXT (fndecl) == NULL_TREE)
2504 19144 : pushdecl_top_level (fndecl);
2505 :
2506 19144 : if (sym->formal_ns
2507 17042 : && sym->formal_ns->proc_name == sym)
2508 : {
2509 17042 : if (sym->formal_ns->omp_declare_simd)
2510 15 : gfc_trans_omp_declare_simd (sym->formal_ns);
2511 17042 : if (flag_openmp)
2512 : {
2513 : // We need DECL_ARGUMENTS to put attributes on, in case some arguments
2514 : // need adjustment
2515 1812 : create_function_arglist (sym->formal_ns->proc_name);
2516 1812 : gfc_trans_omp_declare_variant (sym->formal_ns, sym->ns);
2517 : }
2518 : }
2519 :
2520 19144 : return fndecl;
2521 : }
2522 :
2523 :
2524 : /* Create a declaration for a procedure. For external functions (in the C
2525 : sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is
2526 : a master function with alternate entry points. */
2527 :
2528 : static void
2529 97543 : build_function_decl (gfc_symbol * sym, bool global)
2530 : {
2531 97543 : tree fndecl, type;
2532 97543 : symbol_attribute attr;
2533 97543 : tree result_decl;
2534 97543 : gfc_formal_arglist *f;
2535 :
2536 195086 : bool module_procedure = sym->attr.module_procedure
2537 439 : && sym->ns
2538 439 : && sym->ns->proc_name
2539 97982 : && sym->ns->proc_name->attr.flavor == FL_MODULE;
2540 :
2541 97543 : gcc_assert (!sym->attr.external || module_procedure);
2542 :
2543 97543 : if (sym->backend_decl)
2544 12113 : return;
2545 :
2546 : /* Set the line and filename. sym->declared_at seems to point to the
2547 : last statement for subroutines, but it'll do for now. */
2548 85430 : input_location = gfc_get_location (&sym->declared_at);
2549 :
2550 : /* Allow only one nesting level. Allow public declarations. */
2551 85430 : gcc_assert (current_function_decl == NULL_TREE
2552 : || DECL_FILE_SCOPE_P (current_function_decl)
2553 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2554 : == NAMESPACE_DECL));
2555 :
2556 85430 : type = gfc_get_function_type (sym);
2557 85430 : fndecl = build_decl (input_location,
2558 : FUNCTION_DECL, gfc_sym_identifier (sym), type);
2559 :
2560 85430 : attr = sym->attr;
2561 :
2562 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2563 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2564 : the opposite of declaring a function as static in C). */
2565 85430 : DECL_EXTERNAL (fndecl) = 0;
2566 :
2567 85430 : if (sym->attr.access == ACCESS_UNKNOWN && sym->module
2568 24297 : && (sym->ns->default_access == ACCESS_PRIVATE
2569 22352 : || (sym->ns->default_access == ACCESS_UNKNOWN
2570 22339 : && flag_module_private)))
2571 1945 : sym->attr.access = ACCESS_PRIVATE;
2572 :
2573 85430 : if (!current_function_decl
2574 62550 : && !sym->attr.entry_master && !sym->attr.is_main_program
2575 35892 : && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label
2576 2135 : || sym->attr.public_used))
2577 35105 : TREE_PUBLIC (fndecl) = 1;
2578 :
2579 85430 : if (sym->attr.referenced || sym->attr.entry_master)
2580 39584 : TREE_USED (fndecl) = 1;
2581 :
2582 85430 : add_attributes_to_decl (&fndecl, sym);
2583 :
2584 : /* Figure out the return type of the declared function, and build a
2585 : RESULT_DECL for it. If this is a subroutine with alternate
2586 : returns, build a RESULT_DECL for it. */
2587 85430 : result_decl = NULL_TREE;
2588 : /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */
2589 85430 : if (sym->attr.function)
2590 : {
2591 15838 : if (gfc_return_by_reference (sym))
2592 3075 : type = void_type_node;
2593 : else
2594 : {
2595 12763 : if (sym->result != sym)
2596 6234 : result_decl = gfc_sym_identifier (sym->result);
2597 :
2598 12763 : type = TREE_TYPE (TREE_TYPE (fndecl));
2599 : }
2600 : }
2601 : else
2602 : {
2603 : /* Look for alternate return placeholders. */
2604 69592 : int has_alternate_returns = 0;
2605 148048 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2606 : {
2607 78525 : if (f->sym == NULL)
2608 : {
2609 : has_alternate_returns = 1;
2610 : break;
2611 : }
2612 : }
2613 :
2614 69592 : if (has_alternate_returns)
2615 69 : type = integer_type_node;
2616 : else
2617 69523 : type = void_type_node;
2618 : }
2619 :
2620 85430 : result_decl = build_decl (input_location,
2621 : RESULT_DECL, result_decl, type);
2622 85430 : DECL_ARTIFICIAL (result_decl) = 1;
2623 85430 : DECL_IGNORED_P (result_decl) = 1;
2624 85430 : DECL_CONTEXT (result_decl) = fndecl;
2625 85430 : DECL_RESULT (fndecl) = result_decl;
2626 :
2627 : /* Don't call layout_decl for a RESULT_DECL.
2628 : layout_decl (result_decl, 0); */
2629 :
2630 : /* TREE_STATIC means the function body is defined here. */
2631 85430 : TREE_STATIC (fndecl) = 1;
2632 :
2633 : /* Set attributes for PURE functions. A call to a PURE function in the
2634 : Fortran 95 sense is both pure and without side effects in the C
2635 : sense. */
2636 85430 : if (sym->attr.pure || sym->attr.implicit_pure)
2637 : {
2638 : /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments
2639 : including an alternate return. In that case it can also be
2640 : marked as PURE. See also in gfc_get_extern_function_decl(). */
2641 18769 : if (attr.function && !gfc_return_by_reference (sym))
2642 4489 : DECL_PURE_P (fndecl) = 1;
2643 18769 : TREE_SIDE_EFFECTS (fndecl) = 0;
2644 : }
2645 :
2646 : /* Mark noinline functions. */
2647 85430 : if (attr.ext_attr & (1 << EXT_ATTR_NOINLINE))
2648 1 : DECL_UNINLINABLE (fndecl) = 1;
2649 :
2650 : /* Mark noreturn functions. */
2651 85430 : if (attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2652 8 : TREE_THIS_VOLATILE (fndecl) = 1;
2653 :
2654 : /* Mark weak functions. */
2655 85430 : if (attr.ext_attr & (1 << EXT_ATTR_WEAK))
2656 6 : declare_weak (fndecl);
2657 :
2658 : /* Layout the function declaration and put it in the binding level
2659 : of the current function. */
2660 :
2661 85430 : if (global)
2662 774 : pushdecl_top_level (fndecl);
2663 : else
2664 84656 : pushdecl (fndecl);
2665 :
2666 : /* Perform name mangling if this is a top level or module procedure. */
2667 85430 : if (current_function_decl == NULL_TREE)
2668 62550 : gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym));
2669 :
2670 85430 : sym->backend_decl = fndecl;
2671 : }
2672 :
2673 :
2674 : /* Create the DECL_ARGUMENTS for a procedure.
2675 : NOTE: The arguments added here must match the argument type created by
2676 : gfc_get_function_type (). */
2677 :
2678 : static void
2679 87242 : create_function_arglist (gfc_symbol * sym)
2680 : {
2681 87242 : tree fndecl;
2682 87242 : gfc_formal_arglist *f;
2683 87242 : tree typelist, hidden_typelist, optval_typelist;
2684 87242 : tree arglist, hidden_arglist, optval_arglist;
2685 87242 : tree type;
2686 87242 : tree parm;
2687 :
2688 87242 : fndecl = sym->backend_decl;
2689 :
2690 : /* Build formal argument list. Make sure that their TREE_CONTEXT is
2691 : the new FUNCTION_DECL node. */
2692 87242 : arglist = NULL_TREE;
2693 87242 : hidden_arglist = NULL_TREE;
2694 87242 : optval_arglist = NULL_TREE;
2695 87242 : typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl));
2696 :
2697 87242 : if (sym->attr.entry_master)
2698 : {
2699 632 : type = TREE_VALUE (typelist);
2700 632 : parm = build_decl (input_location,
2701 : PARM_DECL, get_identifier ("__entry"), type);
2702 :
2703 632 : DECL_CONTEXT (parm) = fndecl;
2704 632 : DECL_ARG_TYPE (parm) = type;
2705 632 : TREE_READONLY (parm) = 1;
2706 632 : gfc_finish_decl (parm);
2707 632 : DECL_ARTIFICIAL (parm) = 1;
2708 :
2709 632 : arglist = chainon (arglist, parm);
2710 632 : typelist = TREE_CHAIN (typelist);
2711 : }
2712 :
2713 87242 : if (gfc_return_by_reference (sym))
2714 : {
2715 3117 : tree type = TREE_VALUE (typelist), length = NULL;
2716 :
2717 3117 : if (sym->ts.type == BT_CHARACTER)
2718 : {
2719 : /* Length of character result. */
2720 1590 : tree len_type = TREE_VALUE (TREE_CHAIN (typelist));
2721 :
2722 1590 : length = build_decl (input_location,
2723 : PARM_DECL,
2724 : get_identifier (".__result"),
2725 : len_type);
2726 1590 : if (POINTER_TYPE_P (len_type))
2727 : {
2728 281 : sym->ts.u.cl->passed_length = length;
2729 281 : TREE_USED (length) = 1;
2730 : }
2731 1309 : else if (!sym->ts.u.cl->length)
2732 : {
2733 157 : sym->ts.u.cl->backend_decl = length;
2734 157 : TREE_USED (length) = 1;
2735 : }
2736 1590 : gcc_assert (TREE_CODE (length) == PARM_DECL);
2737 1590 : DECL_CONTEXT (length) = fndecl;
2738 1590 : DECL_ARG_TYPE (length) = len_type;
2739 1590 : TREE_READONLY (length) = 1;
2740 1590 : DECL_ARTIFICIAL (length) = 1;
2741 1590 : gfc_finish_decl (length);
2742 1590 : if (sym->ts.u.cl->backend_decl == NULL
2743 610 : || sym->ts.u.cl->backend_decl == length)
2744 : {
2745 1137 : gfc_symbol *arg;
2746 1137 : tree backend_decl;
2747 :
2748 1137 : if (sym->ts.u.cl->backend_decl == NULL)
2749 : {
2750 980 : tree len = build_decl (input_location,
2751 : VAR_DECL,
2752 : get_identifier ("..__result"),
2753 : gfc_charlen_type_node);
2754 980 : DECL_ARTIFICIAL (len) = 1;
2755 980 : TREE_USED (len) = 1;
2756 980 : sym->ts.u.cl->backend_decl = len;
2757 : }
2758 :
2759 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2760 1137 : arg = sym->result ? sym->result : sym;
2761 1137 : backend_decl = arg->backend_decl;
2762 : /* Temporary clear it, so that gfc_sym_type creates complete
2763 : type. */
2764 1137 : arg->backend_decl = NULL;
2765 1137 : type = gfc_sym_type (arg);
2766 1137 : arg->backend_decl = backend_decl;
2767 1137 : type = build_reference_type (type);
2768 : }
2769 : }
2770 :
2771 3117 : parm = build_decl (input_location,
2772 : PARM_DECL, get_identifier ("__result"), type);
2773 :
2774 3117 : DECL_CONTEXT (parm) = fndecl;
2775 3117 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
2776 3117 : TREE_READONLY (parm) = 1;
2777 3117 : DECL_ARTIFICIAL (parm) = 1;
2778 3117 : gfc_finish_decl (parm);
2779 :
2780 3117 : arglist = chainon (arglist, parm);
2781 3117 : typelist = TREE_CHAIN (typelist);
2782 :
2783 3117 : if (sym->ts.type == BT_CHARACTER)
2784 : {
2785 1590 : gfc_allocate_lang_decl (parm);
2786 1590 : arglist = chainon (arglist, length);
2787 1590 : typelist = TREE_CHAIN (typelist);
2788 : }
2789 : }
2790 :
2791 87242 : hidden_typelist = typelist;
2792 190247 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2793 103005 : if (f->sym != NULL) /* Ignore alternate returns. */
2794 102906 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2795 :
2796 : /* Advance hidden_typelist over optional+value argument presence flags. */
2797 87242 : optval_typelist = hidden_typelist;
2798 190247 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2799 103005 : if (f->sym != NULL
2800 102906 : && f->sym->attr.optional && f->sym->attr.value
2801 512 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2802 512 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2803 :
2804 190247 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2805 : {
2806 103005 : char name[GFC_MAX_SYMBOL_LEN + 2];
2807 :
2808 : /* Ignore alternate returns. */
2809 103005 : if (f->sym == NULL)
2810 99 : continue;
2811 :
2812 102906 : type = TREE_VALUE (typelist);
2813 :
2814 102906 : if (f->sym->ts.type == BT_CHARACTER
2815 9552 : && (!sym->attr.is_bind_c || sym->attr.entry_master))
2816 : {
2817 8230 : tree len_type = TREE_VALUE (hidden_typelist);
2818 8230 : tree length = NULL_TREE;
2819 8230 : if (!f->sym->ts.deferred)
2820 7363 : gcc_assert (len_type == gfc_charlen_type_node);
2821 : else
2822 867 : gcc_assert (POINTER_TYPE_P (len_type));
2823 :
2824 8230 : strcpy (&name[1], f->sym->name);
2825 8230 : name[0] = '_';
2826 8230 : length = build_decl (input_location,
2827 : PARM_DECL, get_identifier (name), len_type);
2828 :
2829 8230 : hidden_arglist = chainon (hidden_arglist, length);
2830 8230 : DECL_CONTEXT (length) = fndecl;
2831 8230 : DECL_ARTIFICIAL (length) = 1;
2832 8230 : DECL_ARG_TYPE (length) = len_type;
2833 8230 : TREE_READONLY (length) = 1;
2834 8230 : gfc_finish_decl (length);
2835 :
2836 : /* Marking the length DECL_HIDDEN_STRING_LENGTH will lead
2837 : to tail calls being disabled. Only do that if we
2838 : potentially have broken callers. */
2839 8230 : if (flag_tail_call_workaround
2840 8230 : && f->sym->ts.u.cl
2841 7710 : && f->sym->ts.u.cl->length
2842 2616 : && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT
2843 2351 : && (flag_tail_call_workaround == 2
2844 2351 : || f->sym->ns->implicit_interface_calls))
2845 84 : DECL_HIDDEN_STRING_LENGTH (length) = 1;
2846 :
2847 : /* Remember the passed value. */
2848 8230 : if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length)
2849 : {
2850 : /* This can happen if the same type is used for multiple
2851 : arguments. We need to copy cl as otherwise
2852 : cl->passed_length gets overwritten. */
2853 622 : f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl);
2854 : }
2855 8230 : f->sym->ts.u.cl->passed_length = length;
2856 :
2857 : /* Use the passed value for assumed length variables. */
2858 8230 : if (!f->sym->ts.u.cl->length)
2859 : {
2860 5614 : TREE_USED (length) = 1;
2861 5614 : gcc_assert (!f->sym->ts.u.cl->backend_decl);
2862 5614 : f->sym->ts.u.cl->backend_decl = length;
2863 : }
2864 :
2865 8230 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2866 :
2867 8230 : if (f->sym->ts.u.cl->backend_decl == NULL
2868 7932 : || f->sym->ts.u.cl->backend_decl == length)
2869 : {
2870 5912 : if (POINTER_TYPE_P (len_type))
2871 767 : f->sym->ts.u.cl->backend_decl
2872 767 : = build_fold_indirect_ref_loc (input_location, length);
2873 5145 : else if (f->sym->ts.u.cl->backend_decl == NULL)
2874 298 : gfc_create_string_length (f->sym);
2875 :
2876 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2877 5912 : if (f->sym->attr.flavor == FL_PROCEDURE)
2878 14 : type = build_pointer_type (gfc_get_function_type (f->sym));
2879 : else
2880 5898 : type = gfc_sym_type (f->sym);
2881 : }
2882 : }
2883 : /* For scalar intrinsic types or derived types, VALUE passes the value,
2884 : hence, the optional status cannot be transferred via a NULL pointer.
2885 : Thus, we will use a hidden argument in that case. */
2886 102906 : if (f->sym->attr.optional && f->sym->attr.value
2887 512 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2888 : {
2889 512 : tree tmp;
2890 512 : strcpy (&name[1], f->sym->name);
2891 512 : name[0] = '.';
2892 512 : tmp = build_decl (input_location,
2893 : PARM_DECL, get_identifier (name),
2894 : boolean_type_node);
2895 :
2896 512 : optval_arglist = chainon (optval_arglist, tmp);
2897 512 : DECL_CONTEXT (tmp) = fndecl;
2898 512 : DECL_ARTIFICIAL (tmp) = 1;
2899 512 : DECL_ARG_TYPE (tmp) = boolean_type_node;
2900 512 : TREE_READONLY (tmp) = 1;
2901 512 : gfc_finish_decl (tmp);
2902 :
2903 : /* The presence flag must be boolean. */
2904 512 : gcc_assert (TREE_VALUE (optval_typelist) == boolean_type_node);
2905 512 : optval_typelist = TREE_CHAIN (optval_typelist);
2906 : }
2907 :
2908 : /* For non-constant length array arguments, make sure they use
2909 : a different type node from TYPE_ARG_TYPES type. */
2910 102906 : if (f->sym->attr.dimension
2911 22752 : && type == TREE_VALUE (typelist)
2912 21440 : && TREE_CODE (type) == POINTER_TYPE
2913 9802 : && GFC_ARRAY_TYPE_P (type)
2914 7954 : && f->sym->as->type != AS_ASSUMED_SIZE
2915 109050 : && ! COMPLETE_TYPE_P (TREE_TYPE (type)))
2916 : {
2917 2614 : if (f->sym->attr.flavor == FL_PROCEDURE)
2918 0 : type = build_pointer_type (gfc_get_function_type (f->sym));
2919 : else
2920 2614 : type = gfc_sym_type (f->sym);
2921 : }
2922 :
2923 102906 : if (f->sym->attr.proc_pointer)
2924 128 : type = build_pointer_type (type);
2925 :
2926 102906 : if (f->sym->attr.volatile_)
2927 3 : type = build_qualified_type (type, TYPE_QUAL_VOLATILE);
2928 :
2929 : /* Build the argument declaration. For C descriptors, we use a
2930 : '_'-prefixed name for the parm_decl and inside the proc the
2931 : sym->name. */
2932 102906 : tree parm_name;
2933 102906 : if (sym->attr.is_bind_c && is_CFI_desc (f->sym, NULL))
2934 : {
2935 1819 : strcpy (&name[1], f->sym->name);
2936 1819 : name[0] = '_';
2937 1819 : parm_name = get_identifier (name);
2938 : }
2939 : else
2940 101087 : parm_name = gfc_sym_identifier (f->sym);
2941 102906 : parm = build_decl (input_location, PARM_DECL, parm_name, type);
2942 :
2943 102906 : if (f->sym->attr.volatile_)
2944 : {
2945 3 : TREE_THIS_VOLATILE (parm) = 1;
2946 3 : TREE_SIDE_EFFECTS (parm) = 1;
2947 : }
2948 :
2949 : /* Fill in arg stuff. */
2950 102906 : DECL_CONTEXT (parm) = fndecl;
2951 102906 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
2952 : /* All implementation args except for VALUE are read-only. */
2953 102906 : if (!f->sym->attr.value)
2954 94095 : TREE_READONLY (parm) = 1;
2955 102906 : if (POINTER_TYPE_P (type)
2956 94773 : && (!f->sym->attr.proc_pointer
2957 94645 : && f->sym->attr.flavor != FL_PROCEDURE))
2958 93870 : DECL_BY_REFERENCE (parm) = 1;
2959 102906 : if (f->sym->attr.optional)
2960 : {
2961 6095 : gfc_allocate_lang_decl (parm);
2962 6095 : GFC_DECL_OPTIONAL_ARGUMENT (parm) = 1;
2963 : }
2964 :
2965 102906 : gfc_finish_decl (parm);
2966 102906 : gfc_finish_decl_attrs (parm, &f->sym->attr);
2967 :
2968 102906 : f->sym->backend_decl = parm;
2969 :
2970 : /* Coarrays which are descriptorless or assumed-shape pass with
2971 : -fcoarray=lib the token and the offset as hidden arguments. */
2972 102906 : if (flag_coarray == GFC_FCOARRAY_LIB
2973 6894 : && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension
2974 1525 : && !f->sym->attr.allocatable)
2975 5391 : || (f->sym->ts.type == BT_CLASS
2976 27 : && CLASS_DATA (f->sym)->attr.codimension
2977 22 : && !CLASS_DATA (f->sym)->attr.allocatable)))
2978 : {
2979 1521 : tree caf_type;
2980 1521 : tree token;
2981 1521 : tree offset;
2982 :
2983 1521 : gcc_assert (f->sym->backend_decl != NULL_TREE
2984 : && !sym->attr.is_bind_c);
2985 1521 : caf_type = f->sym->ts.type == BT_CLASS
2986 1521 : ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl)
2987 1503 : : TREE_TYPE (f->sym->backend_decl);
2988 :
2989 1521 : token = build_decl (input_location, PARM_DECL,
2990 : create_tmp_var_name ("caf_token"),
2991 : build_qualified_type (pvoid_type_node,
2992 : TYPE_QUAL_RESTRICT));
2993 1521 : if ((f->sym->ts.type != BT_CLASS
2994 1503 : && f->sym->as->type != AS_DEFERRED)
2995 18 : || (f->sym->ts.type == BT_CLASS
2996 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
2997 : {
2998 1521 : gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL
2999 : || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE);
3000 1521 : if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL)
3001 1516 : gfc_allocate_lang_decl (f->sym->backend_decl);
3002 1521 : GFC_DECL_TOKEN (f->sym->backend_decl) = token;
3003 : }
3004 : else
3005 : {
3006 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE);
3007 0 : GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token;
3008 : }
3009 :
3010 1521 : DECL_CONTEXT (token) = fndecl;
3011 1521 : DECL_ARTIFICIAL (token) = 1;
3012 1521 : DECL_ARG_TYPE (token) = TREE_VALUE (typelist);
3013 1521 : TREE_READONLY (token) = 1;
3014 1521 : hidden_arglist = chainon (hidden_arglist, token);
3015 1521 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3016 1521 : gfc_finish_decl (token);
3017 :
3018 1521 : offset = build_decl (input_location, PARM_DECL,
3019 : create_tmp_var_name ("caf_offset"),
3020 : gfc_array_index_type);
3021 :
3022 1521 : if ((f->sym->ts.type != BT_CLASS
3023 1503 : && f->sym->as->type != AS_DEFERRED)
3024 18 : || (f->sym->ts.type == BT_CLASS
3025 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3026 : {
3027 1521 : gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl)
3028 : == NULL_TREE);
3029 1521 : GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset;
3030 : }
3031 : else
3032 : {
3033 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE);
3034 0 : GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset;
3035 : }
3036 1521 : DECL_CONTEXT (offset) = fndecl;
3037 1521 : DECL_ARTIFICIAL (offset) = 1;
3038 1521 : DECL_ARG_TYPE (offset) = TREE_VALUE (typelist);
3039 1521 : TREE_READONLY (offset) = 1;
3040 1521 : hidden_arglist = chainon (hidden_arglist, offset);
3041 1521 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3042 1521 : gfc_finish_decl (offset);
3043 : }
3044 :
3045 102906 : arglist = chainon (arglist, parm);
3046 102906 : typelist = TREE_CHAIN (typelist);
3047 : }
3048 :
3049 : /* Add hidden present status for optional+value arguments. */
3050 87242 : arglist = chainon (arglist, optval_arglist);
3051 :
3052 : /* Add the hidden string length parameters, unless the procedure
3053 : is bind(C). */
3054 87242 : if (!sym->attr.is_bind_c)
3055 85125 : arglist = chainon (arglist, hidden_arglist);
3056 :
3057 174484 : gcc_assert (hidden_typelist == NULL_TREE
3058 : || TREE_VALUE (hidden_typelist) == void_type_node);
3059 87242 : DECL_ARGUMENTS (fndecl) = arglist;
3060 87242 : }
3061 :
3062 : /* Do the setup necessary before generating the body of a function. */
3063 :
3064 : static void
3065 85430 : trans_function_start (gfc_symbol * sym)
3066 : {
3067 85430 : tree fndecl;
3068 :
3069 85430 : fndecl = sym->backend_decl;
3070 :
3071 : /* Let GCC know the current scope is this function. */
3072 85430 : current_function_decl = fndecl;
3073 :
3074 : /* Let the world know what we're about to do. */
3075 85430 : announce_function (fndecl);
3076 :
3077 85430 : if (DECL_FILE_SCOPE_P (fndecl))
3078 : {
3079 : /* Create RTL for function declaration. */
3080 37207 : rest_of_decl_compilation (fndecl, 1, 0);
3081 : }
3082 :
3083 : /* Create RTL for function definition. */
3084 85430 : make_decl_rtl (fndecl);
3085 :
3086 85430 : allocate_struct_function (fndecl, false);
3087 :
3088 : /* function.cc requires a push at the start of the function. */
3089 85430 : pushlevel ();
3090 85430 : }
3091 :
3092 : /* Create thunks for alternate entry points. */
3093 :
3094 : static void
3095 632 : build_entry_thunks (gfc_namespace * ns, bool global)
3096 : {
3097 632 : gfc_formal_arglist *formal;
3098 632 : gfc_formal_arglist *thunk_formal;
3099 632 : gfc_entry_list *el;
3100 632 : gfc_symbol *thunk_sym;
3101 632 : stmtblock_t body;
3102 632 : tree thunk_fndecl;
3103 632 : tree tmp;
3104 632 : location_t old_loc;
3105 :
3106 : /* This should always be a toplevel function. */
3107 632 : gcc_assert (current_function_decl == NULL_TREE);
3108 :
3109 632 : old_loc = input_location;
3110 1973 : for (el = ns->entries; el; el = el->next)
3111 : {
3112 1341 : vec<tree, va_gc> *args = NULL;
3113 1341 : vec<tree, va_gc> *string_args = NULL;
3114 :
3115 1341 : thunk_sym = el->sym;
3116 :
3117 1341 : build_function_decl (thunk_sym, global);
3118 1341 : create_function_arglist (thunk_sym);
3119 :
3120 1341 : trans_function_start (thunk_sym);
3121 :
3122 1341 : thunk_fndecl = thunk_sym->backend_decl;
3123 :
3124 1341 : gfc_init_block (&body);
3125 :
3126 : /* Pass extra parameter identifying this entry point. */
3127 1341 : tmp = build_int_cst (gfc_array_index_type, el->id);
3128 1341 : vec_safe_push (args, tmp);
3129 :
3130 1341 : if (thunk_sym->attr.function)
3131 : {
3132 1130 : if (gfc_return_by_reference (ns->proc_name))
3133 : {
3134 252 : tree ref = DECL_ARGUMENTS (current_function_decl);
3135 252 : vec_safe_push (args, ref);
3136 252 : if (ns->proc_name->ts.type == BT_CHARACTER)
3137 136 : vec_safe_push (args, DECL_CHAIN (ref));
3138 : }
3139 : }
3140 :
3141 2885 : for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal;
3142 1544 : formal = formal->next)
3143 : {
3144 : /* Ignore alternate returns. */
3145 1544 : if (formal->sym == NULL)
3146 36 : continue;
3147 :
3148 : /* We don't have a clever way of identifying arguments, so resort to
3149 : a brute-force search. */
3150 1508 : for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym);
3151 2663 : thunk_formal;
3152 1155 : thunk_formal = thunk_formal->next)
3153 : {
3154 2232 : if (thunk_formal->sym == formal->sym)
3155 : break;
3156 : }
3157 :
3158 1508 : if (thunk_formal)
3159 : {
3160 : /* Pass the argument. */
3161 1077 : DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1;
3162 1077 : vec_safe_push (args, thunk_formal->sym->backend_decl);
3163 1077 : if (formal->sym->ts.type == BT_CHARACTER)
3164 : {
3165 94 : tmp = thunk_formal->sym->ts.u.cl->backend_decl;
3166 94 : vec_safe_push (string_args, tmp);
3167 : }
3168 : }
3169 : else
3170 : {
3171 : /* Pass NULL for a missing argument. */
3172 431 : vec_safe_push (args, null_pointer_node);
3173 431 : if (formal->sym->ts.type == BT_CHARACTER)
3174 : {
3175 38 : tmp = build_int_cst (gfc_charlen_type_node, 0);
3176 38 : vec_safe_push (string_args, tmp);
3177 : }
3178 : }
3179 : }
3180 :
3181 : /* Call the master function. */
3182 1341 : vec_safe_splice (args, string_args);
3183 1341 : tmp = ns->proc_name->backend_decl;
3184 1341 : tmp = build_call_expr_loc_vec (input_location, tmp, args);
3185 1341 : if (ns->proc_name->attr.mixed_entry_master)
3186 : {
3187 210 : tree union_decl, field;
3188 210 : tree master_type = TREE_TYPE (ns->proc_name->backend_decl);
3189 :
3190 210 : union_decl = build_decl (input_location,
3191 : VAR_DECL, get_identifier ("__result"),
3192 210 : TREE_TYPE (master_type));
3193 210 : DECL_ARTIFICIAL (union_decl) = 1;
3194 210 : DECL_EXTERNAL (union_decl) = 0;
3195 210 : TREE_PUBLIC (union_decl) = 0;
3196 210 : TREE_USED (union_decl) = 1;
3197 210 : layout_decl (union_decl, 0);
3198 210 : pushdecl (union_decl);
3199 :
3200 210 : DECL_CONTEXT (union_decl) = current_function_decl;
3201 210 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3202 210 : TREE_TYPE (union_decl), union_decl, tmp);
3203 210 : gfc_add_expr_to_block (&body, tmp);
3204 :
3205 210 : for (field = TYPE_FIELDS (TREE_TYPE (union_decl));
3206 342 : field; field = DECL_CHAIN (field))
3207 342 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3208 342 : thunk_sym->result->name) == 0)
3209 : break;
3210 0 : gcc_assert (field != NULL_TREE);
3211 210 : tmp = fold_build3_loc (input_location, COMPONENT_REF,
3212 210 : TREE_TYPE (field), union_decl, field,
3213 : NULL_TREE);
3214 210 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3215 210 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3216 210 : DECL_RESULT (current_function_decl), tmp);
3217 210 : tmp = build1_v (RETURN_EXPR, tmp);
3218 : }
3219 1131 : else if (TREE_TYPE (DECL_RESULT (current_function_decl))
3220 1131 : != void_type_node)
3221 : {
3222 693 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3223 693 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3224 693 : DECL_RESULT (current_function_decl), tmp);
3225 693 : tmp = build1_v (RETURN_EXPR, tmp);
3226 : }
3227 1341 : gfc_add_expr_to_block (&body, tmp);
3228 :
3229 : /* Finish off this function and send it for code generation. */
3230 1341 : DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body);
3231 1341 : tmp = getdecls ();
3232 1341 : poplevel (1, 1);
3233 1341 : BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl;
3234 2682 : DECL_SAVED_TREE (thunk_fndecl)
3235 2682 : = fold_build3_loc (DECL_SOURCE_LOCATION (thunk_fndecl), BIND_EXPR,
3236 1341 : void_type_node, tmp, DECL_SAVED_TREE (thunk_fndecl),
3237 1341 : DECL_INITIAL (thunk_fndecl));
3238 :
3239 : /* Output the GENERIC tree. */
3240 1341 : dump_function (TDI_original, thunk_fndecl);
3241 :
3242 : /* Store the end of the function, so that we get good line number
3243 : info for the epilogue. */
3244 1341 : cfun->function_end_locus = input_location;
3245 :
3246 : /* We're leaving the context of this function, so zap cfun.
3247 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
3248 : tree_rest_of_compilation. */
3249 1341 : set_cfun (NULL);
3250 :
3251 1341 : current_function_decl = NULL_TREE;
3252 :
3253 1341 : cgraph_node::finalize_function (thunk_fndecl, true);
3254 :
3255 : /* We share the symbols in the formal argument list with other entry
3256 : points and the master function. Clear them so that they are
3257 : recreated for each function. */
3258 2463 : for (formal = gfc_sym_get_dummy_args (thunk_sym); formal;
3259 1122 : formal = formal->next)
3260 1122 : if (formal->sym != NULL) /* Ignore alternate returns. */
3261 : {
3262 1077 : formal->sym->backend_decl = NULL_TREE;
3263 1077 : if (formal->sym->ts.type == BT_CHARACTER)
3264 94 : formal->sym->ts.u.cl->backend_decl = NULL_TREE;
3265 : }
3266 :
3267 1341 : if (thunk_sym->attr.function)
3268 : {
3269 1130 : if (thunk_sym->ts.type == BT_CHARACTER)
3270 138 : thunk_sym->ts.u.cl->backend_decl = NULL_TREE;
3271 1130 : if (thunk_sym->result->ts.type == BT_CHARACTER)
3272 138 : thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE;
3273 : }
3274 : }
3275 :
3276 632 : input_location = old_loc;
3277 632 : }
3278 :
3279 :
3280 : /* Create a decl for a function, and create any thunks for alternate entry
3281 : points. If global is true, generate the function in the global binding
3282 : level, otherwise in the current binding level (which can be global). */
3283 :
3284 : void
3285 84089 : gfc_create_function_decl (gfc_namespace * ns, bool global)
3286 : {
3287 : /* Create a declaration for the master function. */
3288 84089 : build_function_decl (ns->proc_name, global);
3289 :
3290 : /* Compile the entry thunks. */
3291 84089 : if (ns->entries)
3292 632 : build_entry_thunks (ns, global);
3293 :
3294 : /* Now create the read argument list. */
3295 84089 : create_function_arglist (ns->proc_name);
3296 :
3297 84089 : if (ns->omp_declare_simd)
3298 94 : gfc_trans_omp_declare_simd (ns);
3299 :
3300 : /* Handle 'declare variant' directives. The applicable directives might
3301 : be declared in a parent namespace, so this needs to be called even if
3302 : there are no local directives. */
3303 84089 : if (flag_openmp)
3304 8633 : gfc_trans_omp_declare_variant (ns, NULL);
3305 84089 : }
3306 :
3307 : /* Return the decl used to hold the function return value. If
3308 : parent_flag is set, the context is the parent_scope. */
3309 :
3310 : tree
3311 12770 : gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag)
3312 : {
3313 12770 : tree decl;
3314 12770 : tree length;
3315 12770 : tree this_fake_result_decl;
3316 12770 : tree this_function_decl;
3317 :
3318 12770 : char name[GFC_MAX_SYMBOL_LEN + 10];
3319 :
3320 12770 : if (parent_flag)
3321 : {
3322 167 : this_fake_result_decl = parent_fake_result_decl;
3323 167 : this_function_decl = DECL_CONTEXT (current_function_decl);
3324 : }
3325 : else
3326 : {
3327 12603 : this_fake_result_decl = current_fake_result_decl;
3328 12603 : this_function_decl = current_function_decl;
3329 : }
3330 :
3331 12770 : if (sym
3332 12720 : && sym->ns->proc_name->backend_decl == this_function_decl
3333 4735 : && sym->ns->proc_name->attr.entry_master
3334 2264 : && sym != sym->ns->proc_name)
3335 : {
3336 1416 : tree t = NULL, var;
3337 1416 : if (this_fake_result_decl != NULL)
3338 1388 : for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t))
3339 1039 : if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0)
3340 : break;
3341 926 : if (t)
3342 577 : return TREE_VALUE (t);
3343 839 : decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag);
3344 :
3345 839 : if (parent_flag)
3346 14 : this_fake_result_decl = parent_fake_result_decl;
3347 : else
3348 825 : this_fake_result_decl = current_fake_result_decl;
3349 :
3350 839 : if (decl && sym->ns->proc_name->attr.mixed_entry_master)
3351 : {
3352 210 : tree field;
3353 :
3354 210 : for (field = TYPE_FIELDS (TREE_TYPE (decl));
3355 342 : field; field = DECL_CHAIN (field))
3356 342 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3357 : sym->name) == 0)
3358 : break;
3359 :
3360 210 : gcc_assert (field != NULL_TREE);
3361 210 : decl = fold_build3_loc (input_location, COMPONENT_REF,
3362 210 : TREE_TYPE (field), decl, field, NULL_TREE);
3363 : }
3364 :
3365 839 : var = create_tmp_var_raw (TREE_TYPE (decl), sym->name);
3366 839 : if (parent_flag)
3367 14 : gfc_add_decl_to_parent_function (var);
3368 : else
3369 825 : gfc_add_decl_to_function (var);
3370 :
3371 839 : SET_DECL_VALUE_EXPR (var, decl);
3372 839 : DECL_HAS_VALUE_EXPR_P (var) = 1;
3373 839 : GFC_DECL_RESULT (var) = 1;
3374 :
3375 839 : TREE_CHAIN (this_fake_result_decl)
3376 839 : = tree_cons (get_identifier (sym->name), var,
3377 839 : TREE_CHAIN (this_fake_result_decl));
3378 839 : return var;
3379 : }
3380 :
3381 11354 : if (this_fake_result_decl != NULL_TREE)
3382 3964 : return TREE_VALUE (this_fake_result_decl);
3383 :
3384 : /* Only when gfc_get_fake_result_decl is called by gfc_trans_return,
3385 : sym is NULL. */
3386 7390 : if (!sym)
3387 : return NULL_TREE;
3388 :
3389 7390 : if (sym->ts.type == BT_CHARACTER)
3390 : {
3391 821 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
3392 0 : length = gfc_create_string_length (sym);
3393 : else
3394 : length = sym->ts.u.cl->backend_decl;
3395 821 : if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE)
3396 490 : gfc_add_decl_to_function (length);
3397 : }
3398 :
3399 7390 : if (gfc_return_by_reference (sym))
3400 : {
3401 1582 : decl = DECL_ARGUMENTS (this_function_decl);
3402 :
3403 1582 : if (sym->ns->proc_name->backend_decl == this_function_decl
3404 381 : && sym->ns->proc_name->attr.entry_master)
3405 61 : decl = DECL_CHAIN (decl);
3406 :
3407 1582 : TREE_USED (decl) = 1;
3408 1582 : if (sym->as)
3409 807 : decl = gfc_build_dummy_array_decl (sym, decl);
3410 : }
3411 : else
3412 : {
3413 11616 : sprintf (name, "__result_%.20s",
3414 5808 : IDENTIFIER_POINTER (DECL_NAME (this_function_decl)));
3415 :
3416 5808 : if (!sym->attr.mixed_entry_master && sym->attr.function)
3417 5669 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3418 : VAR_DECL, get_identifier (name),
3419 : gfc_sym_type (sym));
3420 : else
3421 139 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3422 : VAR_DECL, get_identifier (name),
3423 139 : TREE_TYPE (TREE_TYPE (this_function_decl)));
3424 5808 : DECL_ARTIFICIAL (decl) = 1;
3425 5808 : DECL_EXTERNAL (decl) = 0;
3426 5808 : TREE_PUBLIC (decl) = 0;
3427 5808 : TREE_USED (decl) = 1;
3428 5808 : GFC_DECL_RESULT (decl) = 1;
3429 5808 : TREE_ADDRESSABLE (decl) = 1;
3430 :
3431 5808 : layout_decl (decl, 0);
3432 5808 : gfc_finish_decl_attrs (decl, &sym->attr);
3433 :
3434 5808 : if (parent_flag)
3435 27 : gfc_add_decl_to_parent_function (decl);
3436 : else
3437 5781 : gfc_add_decl_to_function (decl);
3438 : }
3439 :
3440 7390 : if (parent_flag)
3441 39 : parent_fake_result_decl = build_tree_list (NULL, decl);
3442 : else
3443 7351 : current_fake_result_decl = build_tree_list (NULL, decl);
3444 :
3445 7390 : if (sym->attr.assign)
3446 1 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl);
3447 :
3448 : return decl;
3449 : }
3450 :
3451 :
3452 : /* Builds a function decl. The remaining parameters are the types of the
3453 : function arguments. Negative nargs indicates a varargs function. */
3454 :
3455 : static tree
3456 4695483 : build_library_function_decl_1 (tree name, const char *spec,
3457 : tree rettype, int nargs, va_list p)
3458 : {
3459 4695483 : vec<tree, va_gc> *arglist;
3460 4695483 : tree fntype;
3461 4695483 : tree fndecl;
3462 4695483 : int n;
3463 :
3464 : /* Library functions must be declared with global scope. */
3465 4695483 : gcc_assert (current_function_decl == NULL_TREE);
3466 :
3467 : /* Create a list of the argument types. */
3468 4695483 : vec_alloc (arglist, abs (nargs));
3469 18679189 : for (n = abs (nargs); n > 0; n--)
3470 : {
3471 13983706 : tree argtype = va_arg (p, tree);
3472 13983706 : arglist->quick_push (argtype);
3473 : }
3474 :
3475 : /* Build the function type and decl. */
3476 4695483 : if (nargs >= 0)
3477 13457903 : fntype = build_function_type_vec (rettype, arglist);
3478 : else
3479 563202 : fntype = build_varargs_function_type_vec (rettype, arglist);
3480 4695483 : if (spec)
3481 : {
3482 2740122 : tree attr_args = build_tree_list (NULL_TREE,
3483 2740122 : build_string (strlen (spec), spec));
3484 2740122 : tree attrs = tree_cons (get_identifier ("fn spec"),
3485 2740122 : attr_args, TYPE_ATTRIBUTES (fntype));
3486 2740122 : fntype = build_type_attribute_variant (fntype, attrs);
3487 : }
3488 4695483 : fndecl = build_decl (input_location,
3489 : FUNCTION_DECL, name, fntype);
3490 :
3491 : /* Mark this decl as external. */
3492 4695483 : DECL_EXTERNAL (fndecl) = 1;
3493 4695483 : TREE_PUBLIC (fndecl) = 1;
3494 :
3495 4695483 : pushdecl (fndecl);
3496 :
3497 4695483 : rest_of_decl_compilation (fndecl, 1, 0);
3498 :
3499 4695483 : return fndecl;
3500 : }
3501 :
3502 : /* Builds a function decl. The remaining parameters are the types of the
3503 : function arguments. Negative nargs indicates a varargs function. */
3504 :
3505 : tree
3506 1955361 : gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...)
3507 : {
3508 1955361 : tree ret;
3509 1955361 : va_list args;
3510 1955361 : va_start (args, nargs);
3511 1955361 : ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args);
3512 1955361 : va_end (args);
3513 1955361 : return ret;
3514 : }
3515 :
3516 : /* Builds a function decl. The remaining parameters are the types of the
3517 : function arguments. Negative nargs indicates a varargs function.
3518 : The SPEC parameter specifies the function argument and return type
3519 : specification according to the fnspec function type attribute. */
3520 :
3521 : tree
3522 2740122 : gfc_build_library_function_decl_with_spec (tree name, const char *spec,
3523 : tree rettype, int nargs, ...)
3524 : {
3525 2740122 : tree ret;
3526 2740122 : va_list args;
3527 2740122 : va_start (args, nargs);
3528 2740122 : if (flag_checking)
3529 : {
3530 2740122 : attr_fnspec fnspec (spec, strlen (spec));
3531 2740122 : fnspec.verify ();
3532 : }
3533 2740122 : ret = build_library_function_decl_1 (name, spec, rettype, nargs, args);
3534 2740122 : va_end (args);
3535 2740122 : return ret;
3536 : }
3537 :
3538 : static void
3539 31289 : gfc_build_intrinsic_function_decls (void)
3540 : {
3541 31289 : tree gfc_int4_type_node = gfc_get_int_type (4);
3542 31289 : tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node);
3543 31289 : tree gfc_int8_type_node = gfc_get_int_type (8);
3544 31289 : tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node);
3545 31289 : tree gfc_int16_type_node = gfc_get_int_type (16);
3546 31289 : tree gfc_logical4_type_node = gfc_get_logical_type (4);
3547 31289 : tree pchar1_type_node = gfc_get_pchar_type (1);
3548 31289 : tree pchar4_type_node = gfc_get_pchar_type (4);
3549 :
3550 : /* String functions. */
3551 31289 : gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec (
3552 : get_identifier (PREFIX("compare_string")), ". . R . R ",
3553 : integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node,
3554 : gfc_charlen_type_node, pchar1_type_node);
3555 31289 : DECL_PURE_P (gfor_fndecl_compare_string) = 1;
3556 31289 : TREE_NOTHROW (gfor_fndecl_compare_string) = 1;
3557 :
3558 31289 : gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec (
3559 : get_identifier (PREFIX("concat_string")), ". . W . R . R ",
3560 : void_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3561 : gfc_charlen_type_node, pchar1_type_node,
3562 : gfc_charlen_type_node, pchar1_type_node);
3563 31289 : TREE_NOTHROW (gfor_fndecl_concat_string) = 1;
3564 :
3565 31289 : gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec (
3566 : get_identifier (PREFIX("string_len_trim")), ". . R ",
3567 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node);
3568 31289 : DECL_PURE_P (gfor_fndecl_string_len_trim) = 1;
3569 31289 : TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1;
3570 :
3571 31289 : gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec (
3572 : get_identifier (PREFIX("string_index")), ". . R . R . ",
3573 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3574 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3575 31289 : DECL_PURE_P (gfor_fndecl_string_index) = 1;
3576 31289 : TREE_NOTHROW (gfor_fndecl_string_index) = 1;
3577 :
3578 31289 : gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec (
3579 : get_identifier (PREFIX("string_scan")), ". . R . R . ",
3580 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3581 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3582 31289 : DECL_PURE_P (gfor_fndecl_string_scan) = 1;
3583 31289 : TREE_NOTHROW (gfor_fndecl_string_scan) = 1;
3584 :
3585 31289 : gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec (
3586 : get_identifier (PREFIX("string_verify")), ". . R . R . ",
3587 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3588 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3589 31289 : DECL_PURE_P (gfor_fndecl_string_verify) = 1;
3590 31289 : TREE_NOTHROW (gfor_fndecl_string_verify) = 1;
3591 :
3592 31289 : gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec (
3593 : get_identifier (PREFIX("string_trim")), ". W w . R ",
3594 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3595 : build_pointer_type (pchar1_type_node), gfc_charlen_type_node,
3596 : pchar1_type_node);
3597 :
3598 31289 : gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec (
3599 : get_identifier (PREFIX("string_minmax")), ". W w . R ",
3600 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3601 : build_pointer_type (pchar1_type_node), integer_type_node,
3602 : integer_type_node);
3603 :
3604 31289 : gfor_fndecl_string_split = gfc_build_library_function_decl_with_spec (
3605 : get_identifier (PREFIX ("string_split")), ". . R . R . . ",
3606 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3607 : gfc_charlen_type_node, pchar1_type_node, gfc_charlen_type_node,
3608 : gfc_logical4_type_node);
3609 :
3610 31289 : {
3611 31289 : tree copy_helper_ptr_type;
3612 31289 : tree copy_helper_fn_type;
3613 :
3614 31289 : copy_helper_fn_type = build_function_type_list (void_type_node,
3615 : pvoid_type_node,
3616 : pvoid_type_node,
3617 : NULL_TREE);
3618 31289 : copy_helper_ptr_type = build_pointer_type (copy_helper_fn_type);
3619 :
3620 31289 : gfor_fndecl_cfi_deep_copy_array
3621 31289 : = gfc_build_library_function_decl_with_spec (
3622 : get_identifier (PREFIX ("cfi_deep_copy_array")), ". R R . ",
3623 : void_type_node, 3, pvoid_type_node, pvoid_type_node,
3624 : copy_helper_ptr_type);
3625 : }
3626 :
3627 31289 : gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec (
3628 : get_identifier (PREFIX("adjustl")), ". W . R ",
3629 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3630 : pchar1_type_node);
3631 31289 : TREE_NOTHROW (gfor_fndecl_adjustl) = 1;
3632 :
3633 31289 : gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec (
3634 : get_identifier (PREFIX("adjustr")), ". W . R ",
3635 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3636 : pchar1_type_node);
3637 31289 : TREE_NOTHROW (gfor_fndecl_adjustr) = 1;
3638 :
3639 31289 : gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec (
3640 : get_identifier (PREFIX("select_string")), ". R . R . ",
3641 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3642 : pchar1_type_node, gfc_charlen_type_node);
3643 31289 : DECL_PURE_P (gfor_fndecl_select_string) = 1;
3644 31289 : TREE_NOTHROW (gfor_fndecl_select_string) = 1;
3645 :
3646 31289 : gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec (
3647 : get_identifier (PREFIX("compare_string_char4")), ". . R . R ",
3648 : integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node,
3649 : gfc_charlen_type_node, pchar4_type_node);
3650 31289 : DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1;
3651 31289 : TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1;
3652 :
3653 31289 : gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec (
3654 : get_identifier (PREFIX("concat_string_char4")), ". . W . R . R ",
3655 : void_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3656 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3657 : pchar4_type_node);
3658 31289 : TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1;
3659 :
3660 31289 : gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec (
3661 : get_identifier (PREFIX("string_len_trim_char4")), ". . R ",
3662 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node);
3663 31289 : DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1;
3664 31289 : TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1;
3665 :
3666 31289 : gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec (
3667 : get_identifier (PREFIX("string_index_char4")), ". . R . R . ",
3668 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3669 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3670 31289 : DECL_PURE_P (gfor_fndecl_string_index_char4) = 1;
3671 31289 : TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1;
3672 :
3673 31289 : gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec (
3674 : get_identifier (PREFIX("string_scan_char4")), ". . R . R . ",
3675 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3676 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3677 31289 : DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1;
3678 31289 : TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1;
3679 :
3680 31289 : gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec (
3681 : get_identifier (PREFIX("string_verify_char4")), ". . R . R . ",
3682 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3683 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3684 31289 : DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1;
3685 31289 : TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1;
3686 :
3687 31289 : gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec (
3688 : get_identifier (PREFIX("string_trim_char4")), ". W w . R ",
3689 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3690 : build_pointer_type (pchar4_type_node), gfc_charlen_type_node,
3691 : pchar4_type_node);
3692 :
3693 31289 : gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec (
3694 : get_identifier (PREFIX("string_minmax_char4")), ". W w . R ",
3695 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3696 : build_pointer_type (pchar4_type_node), integer_type_node,
3697 : integer_type_node);
3698 :
3699 31289 : gfor_fndecl_string_split_char4 = gfc_build_library_function_decl_with_spec (
3700 : get_identifier (PREFIX ("string_split_char4")), ". . R . R . . ",
3701 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3702 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3703 : gfc_logical4_type_node);
3704 :
3705 31289 : gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec (
3706 : get_identifier (PREFIX("adjustl_char4")), ". W . R ",
3707 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3708 : pchar4_type_node);
3709 31289 : TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1;
3710 :
3711 31289 : gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec (
3712 : get_identifier (PREFIX("adjustr_char4")), ". W . R ",
3713 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3714 : pchar4_type_node);
3715 31289 : TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1;
3716 :
3717 31289 : gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec (
3718 : get_identifier (PREFIX("select_string_char4")), ". R . R . ",
3719 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3720 : pvoid_type_node, gfc_charlen_type_node);
3721 31289 : DECL_PURE_P (gfor_fndecl_select_string_char4) = 1;
3722 31289 : TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1;
3723 :
3724 :
3725 : /* Conversion between character kinds. */
3726 :
3727 31289 : gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec (
3728 : get_identifier (PREFIX("convert_char1_to_char4")), ". w . R ",
3729 : void_type_node, 3, build_pointer_type (pchar4_type_node),
3730 : gfc_charlen_type_node, pchar1_type_node);
3731 :
3732 31289 : gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec (
3733 : get_identifier (PREFIX("convert_char4_to_char1")), ". w . R ",
3734 : void_type_node, 3, build_pointer_type (pchar1_type_node),
3735 : gfc_charlen_type_node, pchar4_type_node);
3736 :
3737 : /* Misc. functions. */
3738 :
3739 31289 : gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec (
3740 : get_identifier (PREFIX("ttynam")), ". W . . ",
3741 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3742 : integer_type_node);
3743 :
3744 31289 : gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec (
3745 : get_identifier (PREFIX("fdate")), ". W . ",
3746 : void_type_node, 2, pchar_type_node, gfc_charlen_type_node);
3747 :
3748 31289 : gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec (
3749 : get_identifier (PREFIX("ctime")), ". W . . ",
3750 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3751 : gfc_int8_type_node);
3752 :
3753 31289 : gfor_fndecl_random_init = gfc_build_library_function_decl (
3754 : get_identifier (PREFIX("random_init")),
3755 : void_type_node, 3, gfc_logical4_type_node, gfc_logical4_type_node,
3756 : gfc_int4_type_node);
3757 :
3758 : // gfor_fndecl_caf_rand_init is defined in the lib-coarray section below.
3759 :
3760 31289 : gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec (
3761 : get_identifier (PREFIX("selected_char_kind")), ". . R ",
3762 : gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node);
3763 31289 : DECL_PURE_P (gfor_fndecl_sc_kind) = 1;
3764 31289 : TREE_NOTHROW (gfor_fndecl_sc_kind) = 1;
3765 :
3766 31289 : gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec (
3767 : get_identifier (PREFIX("selected_int_kind")), ". R ",
3768 : gfc_int4_type_node, 1, pvoid_type_node);
3769 31289 : DECL_PURE_P (gfor_fndecl_si_kind) = 1;
3770 31289 : TREE_NOTHROW (gfor_fndecl_si_kind) = 1;
3771 :
3772 31289 : gfor_fndecl_sl_kind = gfc_build_library_function_decl_with_spec (
3773 : get_identifier (PREFIX("selected_logical_kind")), ". R ",
3774 : gfc_int4_type_node, 1, pvoid_type_node);
3775 31289 : DECL_PURE_P (gfor_fndecl_sl_kind) = 1;
3776 31289 : TREE_NOTHROW (gfor_fndecl_sl_kind) = 1;
3777 :
3778 31289 : gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec (
3779 : get_identifier (PREFIX("selected_real_kind2008")), ". R R ",
3780 : gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node,
3781 : pvoid_type_node);
3782 31289 : DECL_PURE_P (gfor_fndecl_sr_kind) = 1;
3783 31289 : TREE_NOTHROW (gfor_fndecl_sr_kind) = 1;
3784 :
3785 31289 : gfor_fndecl_system_clock4 = gfc_build_library_function_decl (
3786 : get_identifier (PREFIX("system_clock_4")),
3787 : void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node,
3788 : gfc_pint4_type_node);
3789 :
3790 31289 : gfor_fndecl_system_clock8 = gfc_build_library_function_decl (
3791 : get_identifier (PREFIX("system_clock_8")),
3792 : void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node,
3793 : gfc_pint8_type_node);
3794 :
3795 : /* Power functions. */
3796 31289 : {
3797 31289 : tree ctype, rtype, itype, jtype;
3798 31289 : int rkind, ikind, jkind;
3799 : #define NIKINDS 3
3800 : #define NRKINDS 4
3801 : #define NUKINDS 5
3802 31289 : static const int ikinds[NIKINDS] = {4, 8, 16};
3803 31289 : static const int rkinds[NRKINDS] = {4, 8, 10, 16};
3804 31289 : static const int ukinds[NUKINDS] = {1, 2, 4, 8, 16};
3805 31289 : char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */
3806 :
3807 125156 : for (ikind=0; ikind < NIKINDS; ikind++)
3808 : {
3809 93867 : itype = gfc_get_int_type (ikinds[ikind]);
3810 :
3811 469335 : for (jkind=0; jkind < NIKINDS; jkind++)
3812 : {
3813 281601 : jtype = gfc_get_int_type (ikinds[jkind]);
3814 281601 : if (itype && jtype)
3815 : {
3816 279566 : sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind],
3817 : ikinds[jkind]);
3818 559132 : gfor_fndecl_math_powi[jkind][ikind].integer =
3819 279566 : gfc_build_library_function_decl (get_identifier (name),
3820 : jtype, 2, jtype, itype);
3821 279566 : TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3822 279566 : TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3823 : }
3824 : }
3825 :
3826 469335 : for (rkind = 0; rkind < NRKINDS; rkind ++)
3827 : {
3828 375468 : rtype = gfc_get_real_type (rkinds[rkind]);
3829 375468 : if (rtype && itype)
3830 : {
3831 373840 : sprintf (name, PREFIX("pow_r%d_i%d"),
3832 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3833 : ikinds[ikind]);
3834 747680 : gfor_fndecl_math_powi[rkind][ikind].real =
3835 373840 : gfc_build_library_function_decl (get_identifier (name),
3836 : rtype, 2, rtype, itype);
3837 373840 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
3838 373840 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
3839 : }
3840 :
3841 375468 : ctype = gfc_get_complex_type (rkinds[rkind]);
3842 375468 : if (ctype && itype)
3843 : {
3844 373840 : sprintf (name, PREFIX("pow_c%d_i%d"),
3845 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3846 : ikinds[ikind]);
3847 747680 : gfor_fndecl_math_powi[rkind][ikind].cmplx =
3848 373840 : gfc_build_library_function_decl (get_identifier (name),
3849 : ctype, 2,ctype, itype);
3850 373840 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
3851 373840 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
3852 : }
3853 : }
3854 : /* For unsigned types, we have every power for every type. */
3855 563202 : for (int base = 0; base < NUKINDS; base++)
3856 : {
3857 469335 : tree base_type = gfc_get_unsigned_type (ukinds[base]);
3858 2816010 : for (int expon = 0; expon < NUKINDS; expon++)
3859 : {
3860 2346675 : tree expon_type = gfc_get_unsigned_type (ukinds[base]);
3861 2346675 : if (base_type && expon_type)
3862 : {
3863 18375 : sprintf (name, PREFIX("pow_m%d_m%d"), ukinds[base],
3864 18375 : ukinds[expon]);
3865 36750 : gfor_fndecl_unsigned_pow_list [base][expon] =
3866 18375 : gfc_build_library_function_decl (get_identifier (name),
3867 : base_type, 2, base_type, expon_type);
3868 18375 : TREE_READONLY (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
3869 18375 : TREE_NOTHROW (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
3870 : }
3871 : }
3872 : }
3873 : }
3874 : #undef NIKINDS
3875 : #undef NRKINDS
3876 : #undef NUKINDS
3877 : }
3878 :
3879 31289 : gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl (
3880 : get_identifier (PREFIX("ishftc4")),
3881 : gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node,
3882 : gfc_int4_type_node);
3883 31289 : TREE_READONLY (gfor_fndecl_math_ishftc4) = 1;
3884 31289 : TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1;
3885 :
3886 31289 : gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl (
3887 : get_identifier (PREFIX("ishftc8")),
3888 : gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node,
3889 : gfc_int4_type_node);
3890 31289 : TREE_READONLY (gfor_fndecl_math_ishftc8) = 1;
3891 31289 : TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1;
3892 :
3893 31289 : if (gfc_int16_type_node)
3894 : {
3895 30882 : gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl (
3896 : get_identifier (PREFIX("ishftc16")),
3897 : gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node,
3898 : gfc_int4_type_node);
3899 30882 : TREE_READONLY (gfor_fndecl_math_ishftc16) = 1;
3900 30882 : TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1;
3901 : }
3902 :
3903 : /* BLAS functions. */
3904 31289 : {
3905 31289 : tree pint = build_pointer_type (integer_type_node);
3906 31289 : tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind));
3907 31289 : tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind));
3908 31289 : tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind));
3909 31289 : tree pz = build_pointer_type
3910 31289 : (gfc_get_complex_type (gfc_default_double_kind));
3911 :
3912 62578 : gfor_fndecl_sgemm = gfc_build_library_function_decl
3913 32064 : (get_identifier
3914 : (flag_underscoring ? "sgemm_" : "sgemm"),
3915 : void_type_node, 15, pchar_type_node,
3916 : pchar_type_node, pint, pint, pint, ps, ps, pint,
3917 : ps, pint, ps, ps, pint, integer_type_node,
3918 : integer_type_node);
3919 62578 : gfor_fndecl_dgemm = gfc_build_library_function_decl
3920 32064 : (get_identifier
3921 : (flag_underscoring ? "dgemm_" : "dgemm"),
3922 : void_type_node, 15, pchar_type_node,
3923 : pchar_type_node, pint, pint, pint, pd, pd, pint,
3924 : pd, pint, pd, pd, pint, integer_type_node,
3925 : integer_type_node);
3926 62578 : gfor_fndecl_cgemm = gfc_build_library_function_decl
3927 32064 : (get_identifier
3928 : (flag_underscoring ? "cgemm_" : "cgemm"),
3929 : void_type_node, 15, pchar_type_node,
3930 : pchar_type_node, pint, pint, pint, pc, pc, pint,
3931 : pc, pint, pc, pc, pint, integer_type_node,
3932 : integer_type_node);
3933 62578 : gfor_fndecl_zgemm = gfc_build_library_function_decl
3934 32064 : (get_identifier
3935 : (flag_underscoring ? "zgemm_" : "zgemm"),
3936 : void_type_node, 15, pchar_type_node,
3937 : pchar_type_node, pint, pint, pint, pz, pz, pint,
3938 : pz, pint, pz, pz, pint, integer_type_node,
3939 : integer_type_node);
3940 : }
3941 :
3942 : /* Other functions. */
3943 31289 : gfor_fndecl_iargc = gfc_build_library_function_decl (
3944 : get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0);
3945 31289 : TREE_NOTHROW (gfor_fndecl_iargc) = 1;
3946 :
3947 31289 : gfor_fndecl_kill_sub = gfc_build_library_function_decl (
3948 : get_identifier (PREFIX ("kill_sub")), void_type_node,
3949 : 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node);
3950 :
3951 31289 : gfor_fndecl_kill = gfc_build_library_function_decl (
3952 : get_identifier (PREFIX ("kill")), gfc_int4_type_node,
3953 : 2, gfc_int4_type_node, gfc_int4_type_node);
3954 :
3955 31289 : gfor_fndecl_is_contiguous0 = gfc_build_library_function_decl_with_spec (
3956 : get_identifier (PREFIX("is_contiguous0")), ". R ",
3957 : gfc_int4_type_node, 1, pvoid_type_node);
3958 31289 : DECL_PURE_P (gfor_fndecl_is_contiguous0) = 1;
3959 31289 : TREE_NOTHROW (gfor_fndecl_is_contiguous0) = 1;
3960 :
3961 31289 : gfor_fndecl_fstat_i4_sub = gfc_build_library_function_decl (
3962 : get_identifier (PREFIX ("fstat_i4_sub")), void_type_node,
3963 : 3, gfc_pint4_type_node, gfc_pint4_type_node, gfc_pint4_type_node);
3964 :
3965 31289 : gfor_fndecl_fstat_i8_sub = gfc_build_library_function_decl (
3966 : get_identifier (PREFIX ("fstat_i8_sub")), void_type_node,
3967 : 3, gfc_pint8_type_node, gfc_pint8_type_node, gfc_pint8_type_node);
3968 :
3969 31289 : gfor_fndecl_lstat_i4_sub = gfc_build_library_function_decl (
3970 : get_identifier (PREFIX ("lstat_i4_sub")), void_type_node,
3971 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
3972 : gfc_charlen_type_node);
3973 :
3974 31289 : gfor_fndecl_lstat_i8_sub = gfc_build_library_function_decl (
3975 : get_identifier (PREFIX ("lstat_i8_sub")), void_type_node,
3976 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
3977 : gfc_charlen_type_node);
3978 :
3979 31289 : gfor_fndecl_stat_i4_sub = gfc_build_library_function_decl (
3980 : get_identifier (PREFIX ("stat_i4_sub")), void_type_node,
3981 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
3982 : gfc_charlen_type_node);
3983 :
3984 31289 : gfor_fndecl_stat_i8_sub = gfc_build_library_function_decl (
3985 : get_identifier (PREFIX ("stat_i8_sub")), void_type_node,
3986 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
3987 : gfc_charlen_type_node);
3988 31289 : }
3989 :
3990 :
3991 : /* Make prototypes for runtime library functions. */
3992 :
3993 : void
3994 31289 : gfc_build_builtin_function_decls (void)
3995 : {
3996 31289 : tree gfc_int8_type_node = gfc_get_int_type (8);
3997 :
3998 31289 : gfor_fndecl_stop_numeric = gfc_build_library_function_decl (
3999 : get_identifier (PREFIX("stop_numeric")),
4000 : void_type_node, 2, integer_type_node, boolean_type_node);
4001 : /* STOP doesn't return. */
4002 31289 : TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1;
4003 :
4004 31289 : gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec (
4005 : get_identifier (PREFIX("stop_string")), ". R . . ",
4006 : void_type_node, 3, pchar_type_node, size_type_node,
4007 : boolean_type_node);
4008 : /* STOP doesn't return. */
4009 31289 : TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1;
4010 :
4011 31289 : gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl (
4012 : get_identifier (PREFIX("error_stop_numeric")),
4013 : void_type_node, 2, integer_type_node, boolean_type_node);
4014 : /* ERROR STOP doesn't return. */
4015 31289 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1;
4016 :
4017 31289 : gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec (
4018 : get_identifier (PREFIX("error_stop_string")), ". R . . ",
4019 : void_type_node, 3, pchar_type_node, size_type_node,
4020 : boolean_type_node);
4021 : /* ERROR STOP doesn't return. */
4022 31289 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1;
4023 :
4024 31289 : gfor_fndecl_pause_numeric = gfc_build_library_function_decl (
4025 : get_identifier (PREFIX("pause_numeric")),
4026 : void_type_node, 1, gfc_int8_type_node);
4027 :
4028 31289 : gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec (
4029 : get_identifier (PREFIX("pause_string")), ". R . ",
4030 : void_type_node, 2, pchar_type_node, size_type_node);
4031 :
4032 31289 : gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec (
4033 : get_identifier (PREFIX("runtime_error")), ". R ",
4034 : void_type_node, -1, pchar_type_node);
4035 : /* The runtime_error function does not return. */
4036 31289 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1;
4037 :
4038 31289 : gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec (
4039 : get_identifier (PREFIX("runtime_error_at")), ". R R ",
4040 : void_type_node, -2, pchar_type_node, pchar_type_node);
4041 : /* The runtime_error_at function does not return. */
4042 31289 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1;
4043 :
4044 31289 : gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec (
4045 : get_identifier (PREFIX("runtime_warning_at")), ". R R ",
4046 : void_type_node, -2, pchar_type_node, pchar_type_node);
4047 :
4048 31289 : gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec (
4049 : get_identifier (PREFIX("generate_error")), ". W . R ",
4050 : void_type_node, 3, pvoid_type_node, integer_type_node,
4051 : pchar_type_node);
4052 :
4053 31289 : gfor_fndecl_os_error_at = gfc_build_library_function_decl_with_spec (
4054 : get_identifier (PREFIX("os_error_at")), ". R R ",
4055 : void_type_node, -2, pchar_type_node, pchar_type_node);
4056 : /* The os_error_at function does not return. */
4057 31289 : TREE_THIS_VOLATILE (gfor_fndecl_os_error_at) = 1;
4058 :
4059 31289 : gfor_fndecl_set_args = gfc_build_library_function_decl (
4060 : get_identifier (PREFIX("set_args")),
4061 : void_type_node, 2, integer_type_node,
4062 : build_pointer_type (pchar_type_node));
4063 :
4064 31289 : gfor_fndecl_set_fpe = gfc_build_library_function_decl (
4065 : get_identifier (PREFIX("set_fpe")),
4066 : void_type_node, 1, integer_type_node);
4067 :
4068 31289 : gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl (
4069 : get_identifier (PREFIX("ieee_procedure_entry")),
4070 : void_type_node, 1, pvoid_type_node);
4071 :
4072 31289 : gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl (
4073 : get_identifier (PREFIX("ieee_procedure_exit")),
4074 : void_type_node, 1, pvoid_type_node);
4075 :
4076 : /* Keep the array dimension in sync with the call, later in this file. */
4077 31289 : gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec (
4078 : get_identifier (PREFIX("set_options")), ". . R ",
4079 : void_type_node, 2, integer_type_node,
4080 : build_pointer_type (integer_type_node));
4081 :
4082 31289 : gfor_fndecl_set_convert = gfc_build_library_function_decl (
4083 : get_identifier (PREFIX("set_convert")),
4084 : void_type_node, 1, integer_type_node);
4085 :
4086 31289 : gfor_fndecl_set_record_marker = gfc_build_library_function_decl (
4087 : get_identifier (PREFIX("set_record_marker")),
4088 : void_type_node, 1, integer_type_node);
4089 :
4090 31289 : gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl (
4091 : get_identifier (PREFIX("set_max_subrecord_length")),
4092 : void_type_node, 1, integer_type_node);
4093 :
4094 31289 : gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec (
4095 : get_identifier (PREFIX("internal_pack")), ". r ",
4096 : pvoid_type_node, 1, pvoid_type_node);
4097 :
4098 31289 : gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec (
4099 : get_identifier (PREFIX("internal_unpack")), ". w R ",
4100 : void_type_node, 2, pvoid_type_node, pvoid_type_node);
4101 :
4102 31289 : gfor_fndecl_in_pack_class = gfc_build_library_function_decl_with_spec (
4103 : get_identifier (PREFIX ("internal_pack_class")), ". w R r r ",
4104 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4105 : integer_type_node);
4106 :
4107 31289 : gfor_fndecl_in_unpack_class = gfc_build_library_function_decl_with_spec (
4108 : get_identifier (PREFIX ("internal_unpack_class")), ". w R r r ",
4109 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4110 : integer_type_node);
4111 :
4112 31289 : gfor_fndecl_associated = gfc_build_library_function_decl_with_spec (
4113 : get_identifier (PREFIX ("associated")), ". R R ", integer_type_node, 2,
4114 : ppvoid_type_node, ppvoid_type_node);
4115 31289 : DECL_PURE_P (gfor_fndecl_associated) = 1;
4116 31289 : TREE_NOTHROW (gfor_fndecl_associated) = 1;
4117 :
4118 : /* Coarray library calls. */
4119 31289 : if (flag_coarray == GFC_FCOARRAY_LIB)
4120 : {
4121 461 : tree pint_type, pppchar_type, psize_type;
4122 :
4123 461 : pint_type = build_pointer_type (integer_type_node);
4124 461 : pppchar_type
4125 461 : = build_pointer_type (build_pointer_type (pchar_type_node));
4126 461 : psize_type = build_pointer_type (size_type_node);
4127 :
4128 461 : gfor_fndecl_caf_init = gfc_build_library_function_decl_with_spec (
4129 : get_identifier (PREFIX("caf_init")), ". W W ",
4130 : void_type_node, 2, pint_type, pppchar_type);
4131 :
4132 461 : gfor_fndecl_caf_finalize = gfc_build_library_function_decl (
4133 : get_identifier (PREFIX("caf_finalize")), void_type_node, 0);
4134 :
4135 461 : gfor_fndecl_caf_this_image = gfc_build_library_function_decl_with_spec (
4136 : get_identifier (PREFIX ("caf_this_image")), ". r ", integer_type_node,
4137 : 1, pvoid_type_node);
4138 :
4139 461 : gfor_fndecl_caf_num_images = gfc_build_library_function_decl (
4140 : get_identifier (PREFIX("caf_num_images")), integer_type_node,
4141 : 2, integer_type_node, integer_type_node);
4142 :
4143 461 : gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec (
4144 : get_identifier (PREFIX("caf_register")), ". . . W w w w . ",
4145 : void_type_node, 7,
4146 : size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node,
4147 : pint_type, pchar_type_node, size_type_node);
4148 :
4149 461 : gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec (
4150 : get_identifier (PREFIX("caf_deregister")), ". W . w w . ",
4151 : void_type_node, 5,
4152 : ppvoid_type_node, integer_type_node, pint_type, pchar_type_node,
4153 : size_type_node);
4154 :
4155 461 : gfor_fndecl_caf_register_accessor
4156 461 : = gfc_build_library_function_decl_with_spec (
4157 : get_identifier (PREFIX ("caf_register_accessor")), ". r r ",
4158 : void_type_node, 2, integer_type_node, pvoid_type_node);
4159 :
4160 461 : gfor_fndecl_caf_register_accessors_finish
4161 461 : = gfc_build_library_function_decl_with_spec (
4162 : get_identifier (PREFIX ("caf_register_accessors_finish")), ". ",
4163 : void_type_node, 0);
4164 :
4165 461 : gfor_fndecl_caf_get_remote_function_index
4166 461 : = gfc_build_library_function_decl_with_spec (
4167 : get_identifier (PREFIX ("caf_get_remote_function_index")), ". r ",
4168 : integer_type_node, 1, integer_type_node);
4169 :
4170 461 : gfor_fndecl_caf_get_from_remote
4171 461 : = gfc_build_library_function_decl_with_spec (
4172 : get_identifier (PREFIX ("caf_get_from_remote")),
4173 : ". r r r r r w w w r r w r w r r ", void_type_node, 15,
4174 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4175 : size_type_node, ppvoid_type_node, psize_type, pvoid_type_node,
4176 : boolean_type_node, integer_type_node, pvoid_type_node, size_type_node,
4177 : pint_type, pvoid_type_node, pint_type);
4178 :
4179 461 : gfor_fndecl_caf_send_to_remote
4180 461 : = gfc_build_library_function_decl_with_spec (
4181 : get_identifier (PREFIX ("caf_send_to_remote")),
4182 : ". r r r r r r r r r w r w r r ", void_type_node, 14, pvoid_type_node,
4183 : pvoid_type_node, psize_type, integer_type_node, size_type_node,
4184 : ppvoid_type_node, psize_type, pvoid_type_node, integer_type_node,
4185 : pvoid_type_node, size_type_node, pint_type, pvoid_type_node,
4186 : pint_type);
4187 :
4188 461 : gfor_fndecl_caf_transfer_between_remotes
4189 461 : = gfc_build_library_function_decl_with_spec (
4190 : get_identifier (PREFIX ("caf_transfer_between_remotes")),
4191 : ". r r r r r r r r r r r r r r r r w w r r ", void_type_node, 20,
4192 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4193 : integer_type_node, pvoid_type_node, size_type_node, pvoid_type_node,
4194 : pvoid_type_node, psize_type, integer_type_node, integer_type_node,
4195 : pvoid_type_node, size_type_node, size_type_node, boolean_type_node,
4196 : pint_type, pint_type, pvoid_type_node, pint_type);
4197 :
4198 461 : gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec (
4199 : get_identifier (PREFIX ("caf_sync_all")), ". w w . ", void_type_node, 3,
4200 : pint_type, pchar_type_node, size_type_node);
4201 :
4202 461 : gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec (
4203 : get_identifier (PREFIX("caf_sync_memory")), ". w w . ", void_type_node,
4204 : 3, pint_type, pchar_type_node, size_type_node);
4205 :
4206 461 : gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec (
4207 : get_identifier (PREFIX("caf_sync_images")), ". . r w w . ", void_type_node,
4208 : 5, integer_type_node, pint_type, pint_type,
4209 : pchar_type_node, size_type_node);
4210 :
4211 461 : gfor_fndecl_caf_error_stop = gfc_build_library_function_decl (
4212 : get_identifier (PREFIX("caf_error_stop")),
4213 : void_type_node, 1, integer_type_node);
4214 : /* CAF's ERROR STOP doesn't return. */
4215 461 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1;
4216 :
4217 461 : gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec (
4218 : get_identifier (PREFIX("caf_error_stop_str")), ". r . ",
4219 : void_type_node, 2, pchar_type_node, size_type_node);
4220 : /* CAF's ERROR STOP doesn't return. */
4221 461 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1;
4222 :
4223 461 : gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl (
4224 : get_identifier (PREFIX("caf_stop_numeric")),
4225 : void_type_node, 1, integer_type_node);
4226 : /* CAF's STOP doesn't return. */
4227 461 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1;
4228 :
4229 461 : gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec (
4230 : get_identifier (PREFIX("caf_stop_str")), ". r . ",
4231 : void_type_node, 2, pchar_type_node, size_type_node);
4232 : /* CAF's STOP doesn't return. */
4233 461 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1;
4234 :
4235 461 : gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec (
4236 : get_identifier (PREFIX("caf_atomic_define")), ". r . . w w . . ",
4237 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4238 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4239 :
4240 461 : gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec (
4241 : get_identifier (PREFIX("caf_atomic_ref")), ". r . . w w . . ",
4242 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4243 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4244 :
4245 461 : gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec (
4246 : get_identifier (PREFIX("caf_atomic_cas")), ". r . . w r r w . . ",
4247 : void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node,
4248 : pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4249 : integer_type_node, integer_type_node);
4250 :
4251 461 : gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec (
4252 : get_identifier (PREFIX("caf_atomic_op")), ". . r . . r w w . . ",
4253 : void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node,
4254 : integer_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4255 : integer_type_node, integer_type_node);
4256 :
4257 461 : gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec (
4258 : get_identifier (PREFIX("caf_lock")), ". r . . w w w . ",
4259 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4260 : pint_type, pint_type, pchar_type_node, size_type_node);
4261 :
4262 461 : gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec (
4263 : get_identifier (PREFIX("caf_unlock")), ". r . . w w . ",
4264 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4265 : pint_type, pchar_type_node, size_type_node);
4266 :
4267 461 : gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec (
4268 : get_identifier (PREFIX("caf_event_post")), ". r . . w w . ",
4269 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4270 : pint_type, pchar_type_node, size_type_node);
4271 :
4272 461 : gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec (
4273 : get_identifier (PREFIX("caf_event_wait")), ". r . . w w . ",
4274 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4275 : pint_type, pchar_type_node, size_type_node);
4276 :
4277 461 : gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec (
4278 : get_identifier (PREFIX("caf_event_query")), ". r . . w w ",
4279 : void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node,
4280 : pint_type, pint_type);
4281 :
4282 461 : gfor_fndecl_caf_fail_image = gfc_build_library_function_decl (
4283 : get_identifier (PREFIX("caf_fail_image")), void_type_node, 0);
4284 : /* CAF's FAIL doesn't return. */
4285 461 : TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1;
4286 :
4287 461 : gfor_fndecl_caf_failed_images
4288 461 : = gfc_build_library_function_decl_with_spec (
4289 : get_identifier (PREFIX("caf_failed_images")), ". w . r ",
4290 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4291 : integer_type_node);
4292 :
4293 461 : gfor_fndecl_caf_form_team = gfc_build_library_function_decl_with_spec (
4294 : get_identifier (PREFIX ("caf_form_team")), ". r w r w w w ",
4295 : void_type_node, 6, integer_type_node, ppvoid_type_node, pint_type,
4296 : pint_type, pchar_type_node, size_type_node);
4297 :
4298 461 : gfor_fndecl_caf_change_team = gfc_build_library_function_decl_with_spec (
4299 : get_identifier (PREFIX ("caf_change_team")), ". r w w w ",
4300 : void_type_node, 4, pvoid_type_node, pint_type, pchar_type_node,
4301 : size_type_node);
4302 :
4303 461 : gfor_fndecl_caf_end_team = gfc_build_library_function_decl_with_spec (
4304 : get_identifier (PREFIX ("caf_end_team")), ". w w w ", void_type_node, 3,
4305 : pint_type, pchar_type_node, size_type_node);
4306 :
4307 461 : gfor_fndecl_caf_get_team = gfc_build_library_function_decl_with_spec (
4308 : get_identifier (PREFIX ("caf_get_team")), ". r ", pvoid_type_node, 1,
4309 : pint_type);
4310 :
4311 461 : gfor_fndecl_caf_sync_team = gfc_build_library_function_decl_with_spec (
4312 : get_identifier (PREFIX ("caf_sync_team")), ". r w w w ", void_type_node,
4313 : 4, pvoid_type_node, pint_type, pchar_type_node, size_type_node);
4314 :
4315 461 : gfor_fndecl_caf_team_number
4316 461 : = gfc_build_library_function_decl_with_spec (
4317 : get_identifier (PREFIX("caf_team_number")), ". r ",
4318 : integer_type_node, 1, integer_type_node);
4319 :
4320 461 : gfor_fndecl_caf_image_status = gfc_build_library_function_decl_with_spec (
4321 : get_identifier (PREFIX ("caf_image_status")), ". r r ",
4322 : integer_type_node, 2, integer_type_node, ppvoid_type_node);
4323 :
4324 461 : gfor_fndecl_caf_stopped_images
4325 461 : = gfc_build_library_function_decl_with_spec (
4326 : get_identifier (PREFIX("caf_stopped_images")), ". w r r ",
4327 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4328 : integer_type_node);
4329 :
4330 461 : gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec (
4331 : get_identifier (PREFIX("caf_co_broadcast")), ". w . w w . ",
4332 : void_type_node, 5, pvoid_type_node, integer_type_node,
4333 : pint_type, pchar_type_node, size_type_node);
4334 :
4335 461 : gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec (
4336 : get_identifier (PREFIX("caf_co_max")), ". w . w w . . ",
4337 : void_type_node, 6, pvoid_type_node, integer_type_node,
4338 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4339 :
4340 461 : gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec (
4341 : get_identifier (PREFIX("caf_co_min")), ". w . w w . . ",
4342 : void_type_node, 6, pvoid_type_node, integer_type_node,
4343 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4344 :
4345 461 : gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec (
4346 : get_identifier (PREFIX("caf_co_reduce")), ". w r . . w w . . ",
4347 : void_type_node, 8, pvoid_type_node,
4348 : build_pointer_type (build_varargs_function_type_list (void_type_node,
4349 : NULL_TREE)),
4350 : integer_type_node, integer_type_node, pint_type, pchar_type_node,
4351 : integer_type_node, size_type_node);
4352 :
4353 461 : gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec (
4354 : get_identifier (PREFIX("caf_co_sum")), ". w . w w . ",
4355 : void_type_node, 5, pvoid_type_node, integer_type_node,
4356 : pint_type, pchar_type_node, size_type_node);
4357 :
4358 461 : gfor_fndecl_caf_is_present_on_remote
4359 461 : = gfc_build_library_function_decl_with_spec (
4360 : get_identifier (PREFIX ("caf_is_present_on_remote")), ". r r r r r ",
4361 : integer_type_node, 5, pvoid_type_node, integer_type_node,
4362 : integer_type_node, pvoid_type_node, size_type_node);
4363 :
4364 461 : gfor_fndecl_caf_random_init = gfc_build_library_function_decl (
4365 : get_identifier (PREFIX("caf_random_init")),
4366 : void_type_node, 2, logical_type_node, logical_type_node);
4367 : }
4368 :
4369 31289 : gfc_build_intrinsic_function_decls ();
4370 31289 : gfc_build_intrinsic_lib_fndecls ();
4371 31289 : gfc_build_io_library_fndecls ();
4372 31289 : }
4373 :
4374 :
4375 : /* Evaluate the length of dummy character variables. */
4376 :
4377 : static void
4378 750 : gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl,
4379 : gfc_wrapped_block *block)
4380 : {
4381 750 : stmtblock_t init;
4382 :
4383 750 : gfc_finish_decl (cl->backend_decl);
4384 :
4385 750 : gfc_start_block (&init);
4386 :
4387 : /* Evaluate the string length expression. */
4388 750 : gfc_conv_string_length (cl, NULL, &init);
4389 :
4390 750 : gfc_trans_vla_type_sizes (sym, &init);
4391 :
4392 750 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4393 750 : }
4394 :
4395 :
4396 : /* Allocate and cleanup an automatic character variable. */
4397 :
4398 : static void
4399 354 : gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block)
4400 : {
4401 354 : stmtblock_t init;
4402 354 : tree decl;
4403 354 : tree tmp;
4404 354 : bool back;
4405 :
4406 354 : gcc_assert (sym->backend_decl);
4407 354 : gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length);
4408 :
4409 354 : gfc_init_block (&init);
4410 :
4411 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
4412 : function result (ie. proc_name = proc_name->result), gfc_add_init_cleanup
4413 : must be called with the last, optional argument false so that the process
4414 : ing of the character length occurs after the processing of the result. */
4415 354 : back = sym->fn_result_dep;
4416 :
4417 : /* Evaluate the string length expression. */
4418 354 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
4419 :
4420 354 : gfc_trans_vla_type_sizes (sym, &init);
4421 :
4422 354 : decl = sym->backend_decl;
4423 :
4424 : /* Emit a DECL_EXPR for this variable, which will cause the
4425 : gimplifier to allocate storage, and all that good stuff. */
4426 354 : tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl);
4427 354 : gfc_add_expr_to_block (&init, tmp);
4428 :
4429 354 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE, back);
4430 354 : }
4431 :
4432 : /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */
4433 :
4434 : static void
4435 64 : gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block)
4436 : {
4437 64 : stmtblock_t init;
4438 :
4439 64 : gcc_assert (sym->backend_decl);
4440 64 : gfc_start_block (&init);
4441 :
4442 : /* Set the initial value to length. See the comments in
4443 : function gfc_add_assign_aux_vars in this file. */
4444 64 : gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl),
4445 : build_int_cst (gfc_charlen_type_node, -2));
4446 :
4447 64 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4448 64 : }
4449 :
4450 : static void
4451 160612 : gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body)
4452 : {
4453 160612 : tree t = *tp, var, val;
4454 :
4455 160612 : if (t == NULL || t == error_mark_node)
4456 : return;
4457 150589 : if (TREE_CONSTANT (t) || DECL_P (t))
4458 : return;
4459 :
4460 61834 : if (TREE_CODE (t) == SAVE_EXPR)
4461 : {
4462 35460 : if (SAVE_EXPR_RESOLVED_P (t))
4463 : {
4464 0 : *tp = TREE_OPERAND (t, 0);
4465 0 : return;
4466 : }
4467 35460 : val = TREE_OPERAND (t, 0);
4468 : }
4469 : else
4470 : val = t;
4471 :
4472 61834 : var = gfc_create_var_np (TREE_TYPE (t), NULL);
4473 61834 : gfc_add_decl_to_function (var);
4474 61834 : gfc_add_modify (body, var, unshare_expr (val));
4475 61834 : if (TREE_CODE (t) == SAVE_EXPR)
4476 35460 : TREE_OPERAND (t, 0) = var;
4477 61834 : *tp = var;
4478 : }
4479 :
4480 : static void
4481 89771 : gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body)
4482 : {
4483 89771 : tree t;
4484 :
4485 89771 : if (type == NULL || type == error_mark_node)
4486 : return;
4487 :
4488 89771 : type = TYPE_MAIN_VARIANT (type);
4489 :
4490 89771 : if (TREE_CODE (type) == INTEGER_TYPE)
4491 : {
4492 49708 : gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body);
4493 49708 : gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body);
4494 :
4495 64438 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4496 : {
4497 14730 : TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type);
4498 14730 : TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type);
4499 : }
4500 : }
4501 40063 : else if (TREE_CODE (type) == ARRAY_TYPE)
4502 : {
4503 30598 : gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body);
4504 30598 : gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body);
4505 30598 : gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body);
4506 30598 : gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body);
4507 :
4508 30598 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4509 : {
4510 0 : TYPE_SIZE (t) = TYPE_SIZE (type);
4511 0 : TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type);
4512 : }
4513 : }
4514 : }
4515 :
4516 : /* Make sure all type sizes and array domains are either constant,
4517 : or variable or parameter decls. This is a simplified variant
4518 : of gimplify_type_sizes, but we can't use it here, as none of the
4519 : variables in the expressions have been gimplified yet.
4520 : As type sizes and domains for various variable length arrays
4521 : contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars
4522 : time, without this routine gimplify_type_sizes in the middle-end
4523 : could result in the type sizes being gimplified earlier than where
4524 : those variables are initialized. */
4525 :
4526 : void
4527 27083 : gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body)
4528 : {
4529 27083 : tree type = TREE_TYPE (sym->backend_decl);
4530 :
4531 27083 : if (TREE_CODE (type) == FUNCTION_TYPE
4532 1081 : && (sym->attr.function || sym->attr.result || sym->attr.entry))
4533 : {
4534 1081 : if (! current_fake_result_decl)
4535 : return;
4536 :
4537 1081 : type = TREE_TYPE (TREE_VALUE (current_fake_result_decl));
4538 : }
4539 :
4540 53303 : while (POINTER_TYPE_P (type))
4541 26220 : type = TREE_TYPE (type);
4542 :
4543 27083 : if (GFC_DESCRIPTOR_TYPE_P (type))
4544 : {
4545 1492 : tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type);
4546 :
4547 2984 : while (POINTER_TYPE_P (etype))
4548 1492 : etype = TREE_TYPE (etype);
4549 :
4550 1492 : gfc_trans_vla_type_sizes_1 (etype, body);
4551 : }
4552 :
4553 27083 : gfc_trans_vla_type_sizes_1 (type, body);
4554 : }
4555 :
4556 :
4557 : /* Initialize a derived type by building an lvalue from the symbol
4558 : and using trans_assignment to do the work. Set dealloc to false
4559 : if no deallocation prior the assignment is needed. */
4560 : void
4561 1451 : gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc,
4562 : bool pdt_ok)
4563 : {
4564 1451 : gfc_expr *e;
4565 1451 : tree tmp;
4566 1451 : tree present;
4567 :
4568 1451 : gcc_assert (block);
4569 :
4570 : /* Initialization of PDTs is done elsewhere. */
4571 1451 : if (IS_PDT (sym) && !pdt_ok)
4572 : return;
4573 :
4574 1131 : gcc_assert (!sym->attr.allocatable);
4575 1131 : gfc_set_sym_referenced (sym);
4576 1131 : e = gfc_lval_expr_from_sym (sym);
4577 1131 : tmp = gfc_trans_assignment (e, sym->value, false, dealloc);
4578 1131 : if (sym->attr.dummy && (sym->attr.optional
4579 241 : || sym->ns->proc_name->attr.entry_master))
4580 : {
4581 39 : present = gfc_conv_expr_present (sym);
4582 39 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present,
4583 : tmp, build_empty_stmt (input_location));
4584 : }
4585 1131 : gfc_add_expr_to_block (block, tmp);
4586 1131 : gfc_free_expr (e);
4587 : }
4588 :
4589 :
4590 : /* Initialize a PDT, either when the symbol has a value or when all the
4591 : components have an initializer. */
4592 : static tree
4593 504 : gfc_init_default_pdt (gfc_symbol *sym, bool dealloc)
4594 : {
4595 504 : stmtblock_t block;
4596 504 : tree tmp;
4597 504 : gfc_component *c;
4598 :
4599 504 : if (sym->value && sym->value->symtree
4600 12 : && sym->value->symtree->n.sym
4601 12 : && !sym->value->symtree->n.sym->attr.artificial)
4602 : {
4603 12 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym),
4604 : sym->value, false, false, true);
4605 12 : return tmp;
4606 : }
4607 :
4608 492 : if (!dealloc || !sym->value)
4609 : return NULL_TREE;
4610 :
4611 : /* Allowed in the case where all the components have initializers and
4612 : there are no LEN components. */
4613 327 : c = sym->ts.u.derived->components;
4614 538 : for (; c; c = c->next)
4615 518 : if (c->attr.pdt_len || !c->initializer)
4616 : return NULL_TREE;
4617 :
4618 20 : gfc_init_block (&block);
4619 20 : gfc_init_default_dt (sym, &block, dealloc, true);
4620 20 : return gfc_finish_block (&block);
4621 : }
4622 :
4623 :
4624 : /* Initialize INTENT(OUT) derived type dummies. As well as giving
4625 : them their default initializer, if they have allocatable
4626 : components, they have their allocatable components deallocated. */
4627 :
4628 : static void
4629 97937 : init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4630 : {
4631 97937 : stmtblock_t init;
4632 97937 : gfc_formal_arglist *f;
4633 97937 : tree tmp;
4634 97937 : tree present;
4635 97937 : gfc_symbol *s;
4636 :
4637 97937 : gfc_init_block (&init);
4638 198415 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
4639 100478 : if (f->sym && f->sym->attr.intent == INTENT_OUT
4640 3977 : && !f->sym->attr.pointer
4641 3923 : && f->sym->ts.type == BT_DERIVED)
4642 : {
4643 516 : s = f->sym;
4644 516 : tmp = NULL_TREE;
4645 :
4646 : /* Note: Allocatables are excluded as they are already handled
4647 : by the caller. */
4648 516 : if (!f->sym->attr.allocatable
4649 516 : && gfc_is_finalizable (s->ts.u.derived, NULL))
4650 : {
4651 38 : stmtblock_t block;
4652 38 : gfc_expr *e;
4653 :
4654 38 : gfc_init_block (&block);
4655 38 : s->attr.referenced = 1;
4656 38 : e = gfc_lval_expr_from_sym (s);
4657 38 : gfc_add_finalizer_call (&block, e);
4658 38 : gfc_free_expr (e);
4659 38 : tmp = gfc_finish_block (&block);
4660 : }
4661 :
4662 : /* Note: Allocatables are excluded as they are already handled
4663 : by the caller. */
4664 516 : if (tmp == NULL_TREE && !s->attr.allocatable
4665 358 : && s->ts.u.derived->attr.alloc_comp)
4666 126 : tmp = gfc_deallocate_alloc_comp (s->ts.u.derived,
4667 : s->backend_decl,
4668 126 : s->as ? s->as->rank : 0);
4669 :
4670 516 : if (tmp != NULL_TREE && (s->attr.optional
4671 145 : || s->ns->proc_name->attr.entry_master))
4672 : {
4673 19 : present = gfc_conv_expr_present (s);
4674 19 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4675 : present, tmp, build_empty_stmt (input_location));
4676 : }
4677 :
4678 516 : gfc_add_expr_to_block (&init, tmp);
4679 516 : if (s->value && !s->attr.allocatable)
4680 273 : gfc_init_default_dt (s, &init, false);
4681 : }
4682 99962 : else if (f->sym && f->sym->attr.intent == INTENT_OUT
4683 3461 : && f->sym->ts.type == BT_CLASS
4684 624 : && !CLASS_DATA (f->sym)->attr.class_pointer
4685 605 : && !CLASS_DATA (f->sym)->attr.allocatable)
4686 : {
4687 400 : stmtblock_t block;
4688 400 : gfc_expr *e;
4689 :
4690 400 : gfc_init_block (&block);
4691 400 : f->sym->attr.referenced = 1;
4692 400 : e = gfc_lval_expr_from_sym (f->sym);
4693 400 : gfc_add_finalizer_call (&block, e);
4694 400 : gfc_free_expr (e);
4695 400 : tmp = gfc_finish_block (&block);
4696 :
4697 400 : if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master)
4698 : {
4699 6 : present = gfc_conv_expr_present (f->sym);
4700 6 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4701 : present, tmp,
4702 : build_empty_stmt (input_location));
4703 : }
4704 400 : gfc_add_expr_to_block (&init, tmp);
4705 : }
4706 97937 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4707 97937 : }
4708 :
4709 :
4710 : /* Helper function to manage deferred string lengths. */
4711 :
4712 : static tree
4713 161 : gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init,
4714 : location_t loc)
4715 : {
4716 161 : tree tmp;
4717 :
4718 : /* Character length passed by reference. */
4719 161 : tmp = sym->ts.u.cl->passed_length;
4720 161 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
4721 161 : tmp = fold_convert (gfc_charlen_type_node, tmp);
4722 :
4723 161 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
4724 : /* Zero the string length when entering the scope. */
4725 161 : gfc_add_modify (init, sym->ts.u.cl->backend_decl,
4726 : build_int_cst (gfc_charlen_type_node, 0));
4727 : else
4728 : {
4729 0 : tree tmp2;
4730 :
4731 0 : tmp2 = fold_build2_loc (input_location, MODIFY_EXPR,
4732 : gfc_charlen_type_node,
4733 0 : sym->ts.u.cl->backend_decl, tmp);
4734 0 : if (sym->attr.optional)
4735 : {
4736 0 : tree present = gfc_conv_expr_present (sym);
4737 0 : tmp2 = build3_loc (input_location, COND_EXPR,
4738 : void_type_node, present, tmp2,
4739 : build_empty_stmt (input_location));
4740 : }
4741 0 : gfc_add_expr_to_block (init, tmp2);
4742 : }
4743 :
4744 161 : input_location = loc;
4745 :
4746 : /* Pass the final character length back. */
4747 161 : if (sym->attr.intent != INTENT_IN)
4748 : {
4749 322 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
4750 : gfc_charlen_type_node, tmp,
4751 161 : sym->ts.u.cl->backend_decl);
4752 161 : if (sym->attr.optional)
4753 : {
4754 0 : tree present = gfc_conv_expr_present (sym);
4755 0 : tmp = build3_loc (input_location, COND_EXPR,
4756 : void_type_node, present, tmp,
4757 : build_empty_stmt (input_location));
4758 : }
4759 : }
4760 : else
4761 : tmp = NULL_TREE;
4762 :
4763 161 : return tmp;
4764 : }
4765 :
4766 :
4767 : /* Get the result expression for a procedure. */
4768 :
4769 : static tree
4770 24642 : get_proc_result (gfc_symbol* sym)
4771 : {
4772 24642 : if (sym->attr.subroutine || sym == sym->result)
4773 : {
4774 12414 : if (current_fake_result_decl != NULL)
4775 12227 : return TREE_VALUE (current_fake_result_decl);
4776 :
4777 : return NULL_TREE;
4778 : }
4779 :
4780 12228 : return sym->result->backend_decl;
4781 : }
4782 :
4783 :
4784 : /* Generate function entry and exit code, and add it to the function body.
4785 : This includes:
4786 : Allocation and initialization of array variables.
4787 : Allocation of character string variables.
4788 : Initialization and possibly repacking of dummy arrays.
4789 : Initialization of ASSIGN statement auxiliary variable.
4790 : Initialization of ASSOCIATE names.
4791 : Automatic deallocation. */
4792 :
4793 : void
4794 97937 : gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4795 : {
4796 97937 : location_t loc;
4797 97937 : gfc_symbol *sym;
4798 97937 : gfc_formal_arglist *f;
4799 97937 : stmtblock_t tmpblock;
4800 97937 : bool seen_trans_deferred_array = false;
4801 97937 : bool is_pdt_type = false;
4802 97937 : tree tmp = NULL;
4803 97937 : gfc_expr *e;
4804 97937 : gfc_se se;
4805 97937 : stmtblock_t init;
4806 :
4807 : /* Deal with implicit return variables. Explicit return variables will
4808 : already have been added. */
4809 97937 : if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym)
4810 : {
4811 1663 : if (!current_fake_result_decl)
4812 : {
4813 81 : gfc_entry_list *el = NULL;
4814 81 : if (proc_sym->attr.entry_master)
4815 : {
4816 46 : for (el = proc_sym->ns->entries; el; el = el->next)
4817 46 : if (el->sym != el->sym->result)
4818 : break;
4819 : }
4820 : /* TODO: move to the appropriate place in resolve.cc. */
4821 81 : if (warn_return_type > 0 && el == NULL)
4822 4 : gfc_warning (OPT_Wreturn_type,
4823 : "Return value of function %qs at %L not set",
4824 : proc_sym->name, &proc_sym->declared_at);
4825 : }
4826 1582 : else if (proc_sym->as)
4827 : {
4828 807 : tree result = TREE_VALUE (current_fake_result_decl);
4829 807 : loc = input_location;
4830 807 : input_location = gfc_get_location (&proc_sym->declared_at);
4831 807 : gfc_trans_dummy_array_bias (proc_sym, result, block);
4832 :
4833 : /* An automatic character length, pointer array result. */
4834 807 : if (proc_sym->ts.type == BT_CHARACTER
4835 69 : && VAR_P (proc_sym->ts.u.cl->backend_decl))
4836 : {
4837 51 : tmp = NULL;
4838 51 : if (proc_sym->ts.deferred)
4839 : {
4840 12 : gfc_start_block (&init);
4841 12 : tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, loc);
4842 12 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
4843 : }
4844 : else
4845 39 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
4846 : }
4847 : }
4848 775 : else if (proc_sym->ts.type == BT_CHARACTER)
4849 : {
4850 739 : if (proc_sym->ts.deferred)
4851 : {
4852 91 : tmp = NULL;
4853 91 : loc = input_location;
4854 91 : input_location = gfc_get_location (&proc_sym->declared_at);
4855 91 : gfc_start_block (&init);
4856 : /* Zero the string length on entry. */
4857 91 : gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl,
4858 : build_int_cst (gfc_charlen_type_node, 0));
4859 : /* Null the pointer. */
4860 91 : e = gfc_lval_expr_from_sym (proc_sym);
4861 91 : gfc_init_se (&se, NULL);
4862 91 : se.want_pointer = 1;
4863 91 : gfc_conv_expr (&se, e);
4864 91 : gfc_free_expr (e);
4865 91 : tmp = se.expr;
4866 91 : gfc_add_modify (&init, tmp,
4867 91 : fold_convert (TREE_TYPE (se.expr),
4868 : null_pointer_node));
4869 91 : input_location = loc;
4870 :
4871 : /* Pass back the string length on exit. */
4872 91 : tmp = proc_sym->ts.u.cl->backend_decl;
4873 91 : if (TREE_CODE (tmp) != INDIRECT_REF
4874 91 : && proc_sym->ts.u.cl->passed_length)
4875 : {
4876 91 : tmp = proc_sym->ts.u.cl->passed_length;
4877 91 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
4878 182 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
4879 91 : TREE_TYPE (tmp), tmp,
4880 91 : fold_convert
4881 : (TREE_TYPE (tmp),
4882 : proc_sym->ts.u.cl->backend_decl));
4883 : }
4884 : else
4885 : tmp = NULL_TREE;
4886 :
4887 91 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
4888 : }
4889 648 : else if (VAR_P (proc_sym->ts.u.cl->backend_decl))
4890 369 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
4891 : }
4892 : else
4893 36 : gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX);
4894 : }
4895 96274 : else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym))
4896 : {
4897 : /* Nullify explicit return class arrays on entry. */
4898 34 : tree type;
4899 34 : tmp = get_proc_result (proc_sym);
4900 34 : if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp)))
4901 : {
4902 34 : gfc_start_block (&init);
4903 34 : tmp = gfc_class_data_get (tmp);
4904 34 : type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp));
4905 34 : gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0));
4906 34 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4907 : }
4908 : }
4909 :
4910 97937 : sym = (proc_sym->attr.function
4911 97937 : && proc_sym != proc_sym->result) ? proc_sym->result : NULL;
4912 :
4913 7148 : if (sym && !sym->attr.allocatable && !sym->attr.pointer
4914 13672 : && IS_PDT (sym) && !gfc_has_default_initializer (sym->ts.u.derived))
4915 : {
4916 6 : gfc_init_block (&tmpblock);
4917 6 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
4918 : sym->backend_decl,
4919 6 : sym->as ? sym->as->rank : 0,
4920 6 : sym->param_list);
4921 6 : gfc_add_expr_to_block (&tmpblock, tmp);
4922 6 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
4923 : }
4924 :
4925 : /* Initialize the INTENT(OUT) derived type dummy arguments. This
4926 : should be done here so that the offsets and lbounds of arrays
4927 : are available. */
4928 97937 : loc = input_location;
4929 97937 : input_location = gfc_get_location (&proc_sym->declared_at);
4930 97937 : init_intent_out_dt (proc_sym, block);
4931 97937 : input_location = loc;
4932 :
4933 : /* For some reasons, internal procedures point to the parent's
4934 : namespace. Top-level procedure and variables inside BLOCK are fine. */
4935 97937 : gfc_namespace *omp_ns = proc_sym->ns;
4936 97937 : if (proc_sym->ns->proc_name != proc_sym)
4937 199079 : for (omp_ns = proc_sym->ns->contained; omp_ns;
4938 163035 : omp_ns = omp_ns->sibling)
4939 198959 : if (omp_ns->proc_name == proc_sym)
4940 : break;
4941 :
4942 : /* Add 'omp allocate' attribute for gfc_trans_auto_array_allocation and
4943 : unset attr.omp_allocate for 'omp allocate allocator(omp_default_mem_alloc),
4944 : which has the normal codepath except for an invalid-use check in the ME.
4945 : The main processing happens later in this function. */
4946 97937 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
4947 97992 : n; n = n->next)
4948 55 : if (!TREE_STATIC (n->sym->backend_decl))
4949 : {
4950 : /* Add empty entries - described and to be filled below. */
4951 36 : tree tmp = build_tree_list (NULL_TREE, NULL_TREE);
4952 36 : TREE_CHAIN (tmp) = build_tree_list (NULL_TREE, NULL_TREE);
4953 36 : DECL_ATTRIBUTES (n->sym->backend_decl)
4954 36 : = tree_cons (get_identifier ("omp allocate"), tmp,
4955 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
4956 36 : if (n->u.align == NULL
4957 29 : && n->u2.allocator != NULL
4958 7 : && n->u2.allocator->expr_type == EXPR_CONSTANT
4959 2 : && mpz_cmp_si (n->u2.allocator->value.integer, 1) == 0)
4960 1 : n->sym->attr.omp_allocate = 0;
4961 : }
4962 :
4963 171577 : for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink)
4964 : {
4965 73640 : bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED)
4966 73640 : && (sym->ts.u.derived->attr.alloc_comp
4967 5875 : || gfc_is_finalizable (sym->ts.u.derived,
4968 73640 : NULL));
4969 73640 : if (sym->assoc || sym->attr.vtab)
4970 4986 : continue;
4971 :
4972 : /* Set the vptr of unlimited polymorphic pointer variables so that
4973 : they do not cause segfaults in select type, when the selector
4974 : is an intrinsic type. */
4975 68654 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
4976 1027 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc
4977 1027 : && !sym->attr.dummy && CLASS_DATA (sym)->attr.class_pointer)
4978 : {
4979 306 : gfc_symbol *vtab;
4980 306 : gfc_init_block (&tmpblock);
4981 306 : vtab = gfc_find_vtab (&sym->ts);
4982 306 : if (!vtab->backend_decl)
4983 : {
4984 48 : if (!vtab->attr.referenced)
4985 6 : gfc_set_sym_referenced (vtab);
4986 48 : gfc_get_symbol_decl (vtab);
4987 : }
4988 306 : tmp = gfc_class_vptr_get (sym->backend_decl);
4989 306 : gfc_add_modify (&tmpblock, tmp,
4990 306 : gfc_build_addr_expr (TREE_TYPE (tmp),
4991 : vtab->backend_decl));
4992 306 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
4993 : }
4994 :
4995 68654 : if (sym->ts.type == BT_DERIVED
4996 10480 : && sym->ts.u.derived
4997 10480 : && (sym->ts.u.derived->attr.pdt_type || sym->ts.u.derived->attr.pdt_comp))
4998 : {
4999 650 : is_pdt_type = true;
5000 650 : gfc_init_block (&tmpblock);
5001 :
5002 650 : if (!sym->attr.dummy && !sym->attr.pointer)
5003 : {
5004 504 : tmp = gfc_init_default_pdt (sym, true);
5005 504 : if (!sym->attr.allocatable && tmp == NULL_TREE)
5006 : {
5007 394 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
5008 : sym->backend_decl,
5009 394 : sym->as ? sym->as->rank : 0,
5010 394 : sym->param_list);
5011 394 : gfc_add_expr_to_block (&tmpblock, tmp);
5012 : }
5013 78 : else if (tmp != NULL_TREE)
5014 32 : gfc_add_expr_to_block (&tmpblock, tmp);
5015 :
5016 504 : if (!sym->attr.result && !sym->ts.u.derived->attr.alloc_comp)
5017 416 : tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived,
5018 : sym->backend_decl,
5019 416 : sym->as ? sym->as->rank : 0);
5020 : else
5021 : tmp = NULL_TREE;
5022 :
5023 504 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5024 : }
5025 146 : else if (sym->attr.dummy)
5026 : {
5027 62 : tmp = gfc_check_pdt_dummy (sym->ts.u.derived,
5028 : sym->backend_decl,
5029 62 : sym->as ? sym->as->rank : 0,
5030 62 : sym->param_list);
5031 62 : gfc_add_expr_to_block (&tmpblock, tmp);
5032 62 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5033 : }
5034 : }
5035 68004 : else if (IS_CLASS_PDT (sym))
5036 : {
5037 12 : gfc_component *data = CLASS_DATA (sym);
5038 12 : is_pdt_type = true;
5039 12 : gfc_init_block (&tmpblock);
5040 12 : if (!(sym->attr.dummy
5041 12 : || CLASS_DATA (sym)->attr.pointer
5042 12 : || CLASS_DATA (sym)->attr.allocatable))
5043 : {
5044 0 : tmp = gfc_class_data_get (sym->backend_decl);
5045 0 : tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp,
5046 0 : data->as ? data->as->rank : 0,
5047 0 : sym->param_list);
5048 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5049 0 : tmp = gfc_class_data_get (sym->backend_decl);
5050 0 : if (!sym->attr.result)
5051 0 : tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp,
5052 0 : data->as ? data->as->rank : 0);
5053 : else
5054 : tmp = NULL_TREE;
5055 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5056 : }
5057 12 : else if (sym->attr.dummy)
5058 : {
5059 0 : tmp = gfc_class_data_get (sym->backend_decl);
5060 0 : tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp,
5061 0 : data->as ? data->as->rank : 0,
5062 0 : sym->param_list);
5063 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5064 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5065 : }
5066 : }
5067 :
5068 68654 : if (sym->ts.type == BT_CLASS
5069 3752 : && (sym->attr.save || flag_max_stack_var_size == 0)
5070 58 : && CLASS_DATA (sym)->attr.allocatable)
5071 : {
5072 40 : tree vptr;
5073 :
5074 40 : if (UNLIMITED_POLY (sym))
5075 0 : vptr = null_pointer_node;
5076 : else
5077 : {
5078 40 : gfc_symbol *vsym;
5079 40 : vsym = gfc_find_derived_vtab (sym->ts.u.derived);
5080 40 : vptr = gfc_get_symbol_decl (vsym);
5081 40 : vptr = gfc_build_addr_expr (NULL, vptr);
5082 : }
5083 :
5084 40 : if (CLASS_DATA (sym)->attr.dimension
5085 8 : || (CLASS_DATA (sym)->attr.codimension
5086 1 : && flag_coarray != GFC_FCOARRAY_LIB))
5087 : {
5088 33 : tmp = gfc_class_data_get (sym->backend_decl);
5089 33 : tmp = gfc_build_null_descriptor (TREE_TYPE (tmp));
5090 : }
5091 : else
5092 7 : tmp = null_pointer_node;
5093 :
5094 40 : DECL_INITIAL (sym->backend_decl)
5095 40 : = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp);
5096 40 : TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1;
5097 40 : }
5098 68614 : else if ((sym->attr.dimension || sym->attr.codimension
5099 12213 : || (IS_CLASS_COARRAY_OR_ARRAY (sym)
5100 1946 : && !CLASS_DATA (sym)->attr.allocatable)))
5101 : {
5102 57251 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
5103 57251 : symbol_attribute *array_attr;
5104 57251 : gfc_array_spec *as;
5105 57251 : array_type type_of_array;
5106 :
5107 57251 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
5108 57251 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
5109 : /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */
5110 57251 : type_of_array = as->type;
5111 57251 : if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed)
5112 : type_of_array = AS_EXPLICIT;
5113 57180 : switch (type_of_array)
5114 : {
5115 37813 : case AS_EXPLICIT:
5116 37813 : if (sym->attr.dummy || sym->attr.result)
5117 6288 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5118 : /* Allocatable and pointer arrays need to processed
5119 : explicitly. */
5120 31525 : else if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
5121 31525 : || (sym->ts.type == BT_CLASS
5122 0 : && CLASS_DATA (sym)->attr.class_pointer)
5123 31525 : || array_attr->allocatable)
5124 : {
5125 0 : if (TREE_STATIC (sym->backend_decl))
5126 : {
5127 0 : loc = input_location;
5128 0 : input_location = gfc_get_location (&sym->declared_at);
5129 0 : gfc_trans_static_array_pointer (sym);
5130 0 : input_location = loc;
5131 : }
5132 : else
5133 : {
5134 0 : seen_trans_deferred_array = true;
5135 0 : gfc_trans_deferred_array (sym, block);
5136 : }
5137 : }
5138 31525 : else if (sym->attr.codimension
5139 462 : && TREE_STATIC (sym->backend_decl))
5140 : {
5141 402 : gfc_init_block (&tmpblock);
5142 402 : gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl),
5143 : &tmpblock, sym);
5144 402 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5145 : NULL_TREE);
5146 402 : continue;
5147 : }
5148 : else
5149 : {
5150 31123 : loc = input_location;
5151 31123 : input_location = gfc_get_location (&sym->declared_at);
5152 :
5153 31123 : if (alloc_comp_or_fini)
5154 : {
5155 503 : seen_trans_deferred_array = true;
5156 503 : gfc_trans_deferred_array (sym, block);
5157 : }
5158 30620 : else if (sym->ts.type == BT_DERIVED
5159 1724 : && sym->value
5160 517 : && !sym->attr.data
5161 491 : && sym->attr.save == SAVE_NONE)
5162 : {
5163 277 : gfc_start_block (&tmpblock);
5164 277 : gfc_init_default_dt (sym, &tmpblock, false);
5165 277 : gfc_add_init_cleanup (block,
5166 : gfc_finish_block (&tmpblock),
5167 : NULL_TREE);
5168 : }
5169 :
5170 31123 : gfc_trans_auto_array_allocation (sym->backend_decl,
5171 : sym, block);
5172 31123 : input_location = loc;
5173 : }
5174 : break;
5175 :
5176 1521 : case AS_ASSUMED_SIZE:
5177 : /* Must be a dummy parameter. */
5178 1521 : gcc_assert (sym->attr.dummy || as->cp_was_assumed);
5179 :
5180 : /* We should always pass assumed size arrays the g77 way. */
5181 1521 : if (sym->attr.dummy)
5182 1521 : gfc_trans_g77_array (sym, block);
5183 : break;
5184 :
5185 5660 : case AS_ASSUMED_SHAPE:
5186 : /* Must be a dummy parameter. */
5187 5660 : gcc_assert (sym->attr.dummy);
5188 :
5189 5660 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5190 5660 : break;
5191 :
5192 12257 : case AS_ASSUMED_RANK:
5193 12257 : case AS_DEFERRED:
5194 12257 : seen_trans_deferred_array = true;
5195 12257 : gfc_trans_deferred_array (sym, block);
5196 12257 : if (sym->ts.type == BT_CHARACTER && sym->ts.deferred
5197 748 : && sym->attr.result)
5198 : {
5199 32 : gfc_start_block (&init);
5200 32 : loc = input_location;
5201 32 : input_location = gfc_get_location (&sym->declared_at);
5202 32 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5203 32 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5204 : }
5205 : break;
5206 :
5207 0 : default:
5208 0 : gcc_unreachable ();
5209 : }
5210 56849 : if (alloc_comp_or_fini && !seen_trans_deferred_array)
5211 270 : gfc_trans_deferred_array (sym, block);
5212 : }
5213 11363 : else if ((!sym->attr.dummy || sym->ts.deferred)
5214 11167 : && (sym->ts.type == BT_CLASS
5215 2862 : && CLASS_DATA (sym)->attr.class_pointer))
5216 521 : gfc_trans_class_array (sym, block);
5217 10842 : else if ((!sym->attr.dummy || sym->ts.deferred)
5218 10646 : && (sym->attr.allocatable
5219 8334 : || (sym->attr.pointer && sym->attr.result)
5220 8283 : || (sym->ts.type == BT_CLASS
5221 2341 : && CLASS_DATA (sym)->attr.allocatable)))
5222 : {
5223 : /* Ensure that the initialization block may be generated also for
5224 : dummy and result variables when -fno-automatic is specified, which
5225 : sets flag_max_stack_var_size=0. */
5226 4704 : if (!sym->attr.save
5227 4625 : && (flag_max_stack_var_size != 0
5228 3 : || sym->attr.dummy
5229 3 : || sym->attr.result))
5230 : {
5231 4625 : tree descriptor = NULL_TREE;
5232 :
5233 4625 : loc = input_location;
5234 4625 : input_location = gfc_get_location (&sym->declared_at);
5235 4625 : gfc_start_block (&init);
5236 :
5237 4625 : if (sym->ts.type == BT_CHARACTER
5238 983 : && sym->attr.allocatable
5239 959 : && !sym->attr.dimension
5240 959 : && sym->ts.u.cl && sym->ts.u.cl->length
5241 191 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
5242 27 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
5243 :
5244 4625 : if (!sym->attr.pointer)
5245 : {
5246 : /* Nullify and automatic deallocation of allocatable
5247 : scalars. */
5248 4574 : e = gfc_lval_expr_from_sym (sym);
5249 4574 : if (sym->ts.type == BT_CLASS)
5250 2341 : gfc_add_data_component (e);
5251 :
5252 4574 : gfc_init_se (&se, NULL);
5253 4574 : if (sym->ts.type != BT_CLASS
5254 2341 : || sym->ts.u.derived->attr.dimension
5255 2341 : || sym->ts.u.derived->attr.codimension)
5256 : {
5257 2233 : se.want_pointer = 1;
5258 2233 : gfc_conv_expr (&se, e);
5259 : }
5260 2341 : else if (sym->ts.type == BT_CLASS
5261 2341 : && !CLASS_DATA (sym)->attr.dimension
5262 1303 : && !CLASS_DATA (sym)->attr.codimension)
5263 : {
5264 1245 : se.want_pointer = 1;
5265 1245 : gfc_conv_expr (&se, e);
5266 : }
5267 : else
5268 : {
5269 1096 : se.descriptor_only = 1;
5270 1096 : gfc_conv_expr (&se, e);
5271 1096 : descriptor = se.expr;
5272 1096 : se.expr = gfc_conv_descriptor_data_get (se.expr);
5273 : }
5274 4574 : gfc_free_expr (e);
5275 :
5276 4574 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
5277 : {
5278 : /* Nullify when entering the scope. */
5279 4574 : if (sym->ts.type == BT_CLASS
5280 2341 : && (CLASS_DATA (sym)->attr.dimension
5281 1303 : || CLASS_DATA (sym)->attr.codimension))
5282 : {
5283 1096 : stmtblock_t nullify;
5284 1096 : gfc_init_block (&nullify);
5285 1096 : gfc_conv_descriptor_data_set (&nullify, descriptor,
5286 : null_pointer_node);
5287 1096 : tmp = gfc_finish_block (&nullify);
5288 1096 : }
5289 : else
5290 : {
5291 3478 : tree typed_null = fold_convert (TREE_TYPE (se.expr),
5292 : null_pointer_node);
5293 3478 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
5294 3478 : TREE_TYPE (se.expr), se.expr,
5295 : typed_null);
5296 : }
5297 4574 : if (sym->attr.optional)
5298 : {
5299 0 : tree present = gfc_conv_expr_present (sym);
5300 0 : tmp = build3_loc (input_location, COND_EXPR,
5301 : void_type_node, present, tmp,
5302 : build_empty_stmt (input_location));
5303 : }
5304 4574 : gfc_add_expr_to_block (&init, tmp);
5305 : }
5306 : }
5307 :
5308 4625 : if ((sym->attr.dummy || sym->attr.result)
5309 504 : && sym->ts.type == BT_CHARACTER
5310 117 : && sym->ts.deferred
5311 117 : && sym->ts.u.cl->passed_length)
5312 117 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5313 : else
5314 : {
5315 4508 : input_location = loc;
5316 4508 : tmp = NULL_TREE;
5317 : }
5318 :
5319 : /* Initialize descriptor's TKR information. */
5320 4625 : if (sym->ts.type == BT_CLASS)
5321 2341 : gfc_trans_class_array (sym, block);
5322 :
5323 : /* Deallocate when leaving the scope. Nullifying is not
5324 : needed. */
5325 4625 : if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer
5326 4121 : && !sym->ns->proc_name->attr.is_main_program)
5327 : {
5328 1367 : if (sym->ts.type == BT_CLASS
5329 465 : && CLASS_DATA (sym)->attr.codimension)
5330 6 : tmp = gfc_deallocate_with_status (descriptor, NULL_TREE,
5331 : NULL_TREE, NULL_TREE,
5332 : NULL_TREE, true, NULL,
5333 : GFC_CAF_COARRAY_ANALYZE);
5334 : else
5335 : {
5336 1361 : gfc_expr *expr = gfc_lval_expr_from_sym (sym);
5337 1361 : tmp = gfc_deallocate_scalar_with_status (se.expr,
5338 : NULL_TREE,
5339 : NULL_TREE,
5340 : true, expr,
5341 : sym->ts);
5342 1361 : gfc_free_expr (expr);
5343 : }
5344 : }
5345 :
5346 4625 : if (sym->ts.type == BT_CLASS)
5347 : {
5348 : /* Initialize _vptr to declared type. */
5349 2341 : loc = input_location;
5350 2341 : input_location = gfc_get_location (&sym->declared_at);
5351 :
5352 2341 : e = gfc_lval_expr_from_sym (sym);
5353 2341 : gfc_reset_vptr (&init, e);
5354 2341 : gfc_free_expr (e);
5355 2341 : input_location = loc;
5356 : }
5357 :
5358 4625 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5359 : }
5360 : }
5361 6138 : else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred)
5362 : {
5363 244 : tree tmp = NULL;
5364 244 : stmtblock_t init;
5365 :
5366 : /* If we get to here, all that should be left are pointers. */
5367 244 : gcc_assert (sym->attr.pointer);
5368 :
5369 244 : if (sym->attr.dummy)
5370 : {
5371 0 : gfc_start_block (&init);
5372 0 : loc = input_location;
5373 0 : input_location = gfc_get_location (&sym->declared_at);
5374 0 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5375 0 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5376 : }
5377 244 : }
5378 5894 : else if (sym->ts.deferred)
5379 0 : gfc_fatal_error ("Deferred type parameter not yet supported");
5380 5894 : else if (alloc_comp_or_fini)
5381 4571 : gfc_trans_deferred_array (sym, block);
5382 1323 : else if (sym->ts.type == BT_CHARACTER)
5383 : {
5384 696 : loc = input_location;
5385 696 : input_location = gfc_get_location (&sym->declared_at);
5386 696 : if (sym->attr.dummy || sym->attr.result)
5387 342 : gfc_trans_dummy_character (sym, sym->ts.u.cl, block);
5388 : else
5389 354 : gfc_trans_auto_character_variable (sym, block);
5390 696 : input_location = loc;
5391 : }
5392 627 : else if (sym->attr.assign)
5393 : {
5394 64 : loc = input_location;
5395 64 : input_location = gfc_get_location (&sym->declared_at);
5396 64 : gfc_trans_assign_aux_var (sym, block);
5397 64 : input_location = loc;
5398 : }
5399 563 : else if (sym->ts.type == BT_DERIVED
5400 563 : && sym->value
5401 481 : && !sym->attr.data
5402 481 : && sym->attr.save == SAVE_NONE)
5403 : {
5404 462 : gfc_start_block (&tmpblock);
5405 462 : gfc_init_default_dt (sym, &tmpblock, false);
5406 462 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5407 : NULL_TREE);
5408 : }
5409 101 : else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type)
5410 0 : gcc_unreachable ();
5411 : }
5412 :
5413 : /* Handle 'omp allocate'. This has to be after the block above as
5414 : gfc_add_init_cleanup (..., init, ...) puts 'init' of later calls
5415 : before earlier calls. The code is a bit more complex as gfortran does
5416 : not really work with bind expressions / BIND_EXPR_VARS properly, i.e.
5417 : gimplify_bind_expr needs some help for placing the GOMP_alloc. Thus,
5418 : we pass on the location of the allocate-assignment expression and,
5419 : if the size is not constant, the size variable if Fortran computes this
5420 : differently. We also might add an expression location after which the
5421 : code has to be added, e.g. for character len expressions, which affect
5422 : the UNIT_SIZE. */
5423 97937 : gfc_expr *last_allocator = NULL;
5424 97937 : if (omp_ns && omp_ns->omp_allocate)
5425 : {
5426 29 : if (!block->init || TREE_CODE (block->init) != STATEMENT_LIST)
5427 : {
5428 22 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5429 22 : append_to_statement_list (tmp, &block->init);
5430 : }
5431 29 : if (!block->cleanup || TREE_CODE (block->cleanup) != STATEMENT_LIST)
5432 : {
5433 29 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5434 29 : append_to_statement_list (tmp, &block->cleanup);
5435 : }
5436 : }
5437 97937 : tree init_stmtlist = block->init;
5438 97937 : tree cleanup_stmtlist = block->cleanup;
5439 97937 : se.expr = NULL_TREE;
5440 97937 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5441 97992 : n; n = n->next)
5442 : {
5443 55 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align) : NULL_TREE);
5444 55 : if (last_allocator != n->u2.allocator)
5445 : {
5446 24 : location_t loc = input_location;
5447 24 : gfc_init_se (&se, NULL);
5448 24 : if (n->u2.allocator)
5449 : {
5450 22 : input_location = gfc_get_location (&n->u2.allocator->where);
5451 22 : gfc_conv_expr (&se, n->u2.allocator);
5452 : }
5453 : /* We need to evalulate non-constants - also to find the location
5454 : after which the GOMP_alloc has to be added to - also as BLOCK
5455 : does not yield a new BIND_EXPR_BODY. */
5456 24 : if (n->u2.allocator
5457 : && (!(CONSTANT_CLASS_P (se.expr) && DECL_P (se.expr))
5458 : || se.pre.head || se.post.head))
5459 : {
5460 22 : stmtblock_t tmpblock;
5461 22 : gfc_init_block (&tmpblock);
5462 22 : se.expr = gfc_evaluate_now (se.expr, &tmpblock);
5463 : /* First post then pre because the new code is inserted
5464 : at the top. */
5465 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.post), NULL);
5466 22 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5467 : NULL);
5468 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.pre), NULL);
5469 : }
5470 24 : last_allocator = n->u2.allocator;
5471 24 : input_location = loc;
5472 : }
5473 55 : if (TREE_STATIC (n->sym->backend_decl))
5474 19 : continue;
5475 : /* 'omp allocate( {purpose: allocator, value: align},
5476 : {purpose: init-stmtlist, value: cleanup-stmtlist},
5477 : {purpose: size-var, value: last-size-expr} )
5478 : where init-stmt/cleanup-stmt is the STATEMENT list to find the
5479 : try-final block; last-size-expr is to find the location after
5480 : which to add the code and 'size-var' is for the proper size, cf.
5481 : gfc_trans_auto_array_allocation - either or both of the latter
5482 : can be NULL. */
5483 36 : tree tmp = lookup_attribute ("omp allocate",
5484 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5485 36 : tmp = TREE_VALUE (tmp);
5486 36 : TREE_PURPOSE (tmp) = se.expr;
5487 36 : TREE_VALUE (tmp) = align;
5488 36 : TREE_PURPOSE (TREE_CHAIN (tmp)) = init_stmtlist;
5489 36 : TREE_VALUE (TREE_CHAIN (tmp)) = cleanup_stmtlist;
5490 : }
5491 :
5492 97937 : gfc_init_block (&tmpblock);
5493 :
5494 198415 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
5495 : {
5496 100478 : if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER
5497 7770 : && f->sym->ts.u.cl->backend_decl)
5498 : {
5499 7768 : if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL)
5500 4158 : gfc_trans_vla_type_sizes (f->sym, &tmpblock);
5501 : }
5502 : }
5503 :
5504 100758 : if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER
5505 99362 : && current_fake_result_decl != NULL)
5506 : {
5507 808 : gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL);
5508 808 : if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL)
5509 69 : gfc_trans_vla_type_sizes (proc_sym, &tmpblock);
5510 : }
5511 :
5512 97937 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE);
5513 97937 : }
5514 :
5515 :
5516 : struct module_hasher : ggc_ptr_hash<module_htab_entry>
5517 : {
5518 : typedef const char *compare_type;
5519 :
5520 26266 : static hashval_t hash (module_htab_entry *s)
5521 : {
5522 26266 : return htab_hash_string (s->name);
5523 : }
5524 :
5525 : static bool
5526 31196 : equal (module_htab_entry *a, const char *b)
5527 : {
5528 31196 : return !strcmp (a->name, b);
5529 : }
5530 : };
5531 :
5532 : static GTY (()) hash_table<module_hasher> *module_htab;
5533 :
5534 : /* Hash and equality functions for module_htab's decls. */
5535 :
5536 : hashval_t
5537 174657 : module_decl_hasher::hash (tree t)
5538 : {
5539 174657 : const_tree n = DECL_NAME (t);
5540 174657 : if (n == NULL_TREE)
5541 25467 : n = TYPE_NAME (TREE_TYPE (t));
5542 174657 : return htab_hash_string (IDENTIFIER_POINTER (n));
5543 : }
5544 :
5545 : bool
5546 181802 : module_decl_hasher::equal (tree t1, const char *x2)
5547 : {
5548 181802 : const_tree n1 = DECL_NAME (t1);
5549 181802 : if (n1 == NULL_TREE)
5550 25734 : n1 = TYPE_NAME (TREE_TYPE (t1));
5551 181802 : return strcmp (IDENTIFIER_POINTER (n1), x2) == 0;
5552 : }
5553 :
5554 : struct module_htab_entry *
5555 29460 : gfc_find_module (const char *name)
5556 : {
5557 29460 : if (! module_htab)
5558 8032 : module_htab = hash_table<module_hasher>::create_ggc (10);
5559 :
5560 29460 : module_htab_entry **slot
5561 29460 : = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT);
5562 29460 : if (*slot == NULL)
5563 : {
5564 10242 : module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> ();
5565 :
5566 10242 : entry->name = gfc_get_string ("%s", name);
5567 10242 : entry->decls = hash_table<module_decl_hasher>::create_ggc (10);
5568 10242 : *slot = entry;
5569 : }
5570 29460 : return *slot;
5571 : }
5572 :
5573 : void
5574 52983 : gfc_module_add_decl (struct module_htab_entry *entry, tree decl)
5575 : {
5576 52983 : const char *name;
5577 :
5578 52983 : if (DECL_NAME (decl))
5579 45061 : name = IDENTIFIER_POINTER (DECL_NAME (decl));
5580 : else
5581 : {
5582 7922 : gcc_assert (TREE_CODE (decl) == TYPE_DECL);
5583 7922 : name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl)));
5584 : }
5585 52983 : tree *slot
5586 52983 : = entry->decls->find_slot_with_hash (name, htab_hash_string (name),
5587 : INSERT);
5588 52983 : if (*slot == NULL)
5589 52971 : *slot = decl;
5590 52983 : }
5591 :
5592 :
5593 : /* Generate debugging symbols for namelists. This function must come after
5594 : generate_local_decl to ensure that the variables in the namelist are
5595 : already declared. */
5596 :
5597 : static tree
5598 743 : generate_namelist_decl (gfc_symbol * sym)
5599 : {
5600 743 : gfc_namelist *nml;
5601 743 : tree decl;
5602 743 : vec<constructor_elt, va_gc> *nml_decls = NULL;
5603 :
5604 743 : gcc_assert (sym->attr.flavor == FL_NAMELIST);
5605 2745 : for (nml = sym->namelist; nml; nml = nml->next)
5606 : {
5607 2002 : if (nml->sym->backend_decl == NULL_TREE)
5608 : {
5609 220 : nml->sym->attr.referenced = 1;
5610 220 : nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym);
5611 : }
5612 2002 : DECL_IGNORED_P (nml->sym->backend_decl) = 0;
5613 2002 : CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl);
5614 : }
5615 :
5616 743 : decl = make_node (NAMELIST_DECL);
5617 743 : TREE_TYPE (decl) = void_type_node;
5618 743 : NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls);
5619 743 : DECL_NAME (decl) = get_identifier (sym->name);
5620 743 : return decl;
5621 : }
5622 :
5623 :
5624 : /* Output an initialized decl for a module variable. */
5625 :
5626 : static void
5627 141774 : gfc_create_module_variable (gfc_symbol * sym)
5628 : {
5629 141774 : tree decl;
5630 :
5631 : /* Module functions with alternate entries are dealt with later and
5632 : would get caught by the next condition. */
5633 141774 : if (sym->attr.entry)
5634 : return;
5635 :
5636 : /* Make sure we convert the types of the derived types from iso_c_binding
5637 : into (void *). */
5638 141295 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
5639 31284 : && sym->ts.type == BT_DERIVED)
5640 1442 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
5641 :
5642 141295 : if (gfc_fl_struct (sym->attr.flavor)
5643 22673 : && sym->backend_decl
5644 7956 : && TREE_CODE (sym->backend_decl) == RECORD_TYPE)
5645 : {
5646 7922 : decl = sym->backend_decl;
5647 7922 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5648 :
5649 7922 : if (!sym->attr.use_assoc && !sym->attr.used_in_submodule)
5650 : {
5651 7825 : gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE
5652 : || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl);
5653 7825 : gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE
5654 : || DECL_CONTEXT (TYPE_STUB_DECL (decl))
5655 : == sym->ns->proc_name->backend_decl);
5656 : }
5657 7922 : TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5658 7922 : DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl;
5659 7922 : gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl));
5660 : }
5661 :
5662 : /* Only output variables, procedure pointers and array valued,
5663 : or derived type, parameters. */
5664 141295 : if (sym->attr.flavor != FL_VARIABLE
5665 119155 : && !(sym->attr.flavor == FL_PARAMETER
5666 39381 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
5667 118115 : && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer))
5668 : return;
5669 :
5670 23253 : if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl)
5671 : {
5672 461 : decl = sym->backend_decl;
5673 461 : gcc_assert (DECL_FILE_SCOPE_P (decl));
5674 461 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5675 461 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5676 461 : gfc_module_add_decl (cur_module, decl);
5677 : }
5678 :
5679 : /* Don't generate variables from other modules. Variables from
5680 : COMMONs and Cray pointees will already have been generated. */
5681 23253 : if (sym->attr.use_assoc || sym->attr.used_in_submodule
5682 19589 : || sym->attr.in_common || sym->attr.cray_pointee)
5683 : return;
5684 :
5685 : /* Equivalenced variables arrive here after creation. */
5686 19270 : if (sym->backend_decl
5687 573 : && (sym->equiv_built || sym->attr.in_equivalence))
5688 : return;
5689 :
5690 19183 : if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target)
5691 0 : gfc_internal_error ("backend decl for module variable %qs already exists",
5692 : sym->name);
5693 :
5694 19183 : if (sym->module && !sym->attr.result && !sym->attr.dummy
5695 19183 : && (sym->attr.access == ACCESS_UNKNOWN
5696 3679 : && (sym->ns->default_access == ACCESS_PRIVATE
5697 3389 : || (sym->ns->default_access == ACCESS_UNKNOWN
5698 3375 : && flag_module_private))))
5699 291 : sym->attr.access = ACCESS_PRIVATE;
5700 :
5701 19183 : if (warn_unused_variable && !sym->attr.referenced
5702 138 : && sym->attr.access == ACCESS_PRIVATE)
5703 3 : gfc_warning (OPT_Wunused_value,
5704 : "Unused PRIVATE module variable %qs declared at %L",
5705 : sym->name, &sym->declared_at);
5706 :
5707 : /* We always want module variables to be created. */
5708 19183 : sym->attr.referenced = 1;
5709 : /* Create the decl. */
5710 19183 : decl = gfc_get_symbol_decl (sym);
5711 :
5712 : /* Create the variable. */
5713 19183 : pushdecl (decl);
5714 19183 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE
5715 : || ((sym->ns->parent->proc_name->attr.flavor == FL_MODULE
5716 : || sym->ns->parent->proc_name->attr.flavor == FL_PROCEDURE)
5717 : && sym->fn_result_spec));
5718 19183 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5719 19183 : rest_of_decl_compilation (decl, 1, 0);
5720 19183 : gfc_module_add_decl (cur_module, decl);
5721 :
5722 : /* Also add length of strings. */
5723 19183 : if (sym->ts.type == BT_CHARACTER)
5724 : {
5725 400 : tree length;
5726 :
5727 400 : length = sym->ts.u.cl->backend_decl;
5728 400 : gcc_assert (length || sym->attr.proc_pointer);
5729 399 : if (length && !INTEGER_CST_P (length))
5730 : {
5731 54 : pushdecl (length);
5732 54 : rest_of_decl_compilation (length, 1, 0);
5733 : }
5734 : }
5735 :
5736 19183 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
5737 26 : && sym->attr.referenced && !sym->attr.use_assoc)
5738 26 : has_coarray_vars_or_accessors = true;
5739 : }
5740 :
5741 : /* Emit debug information for USE statements. */
5742 :
5743 : static void
5744 93071 : gfc_trans_use_stmts (gfc_namespace * ns)
5745 : {
5746 93071 : gfc_use_list *use_stmt;
5747 104565 : for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next)
5748 : {
5749 11494 : struct module_htab_entry *entry
5750 11494 : = gfc_find_module (use_stmt->module_name);
5751 11494 : gfc_use_rename *rent;
5752 :
5753 11494 : if (entry->namespace_decl == NULL)
5754 : {
5755 1260 : entry->namespace_decl
5756 1260 : = build_decl (input_location,
5757 : NAMESPACE_DECL,
5758 : get_identifier (use_stmt->module_name),
5759 : void_type_node);
5760 1260 : DECL_EXTERNAL (entry->namespace_decl) = 1;
5761 : }
5762 11494 : input_location = gfc_get_location (&use_stmt->where);
5763 11494 : if (!use_stmt->only_flag)
5764 9955 : (*debug_hooks->imported_module_or_decl) (entry->namespace_decl,
5765 : NULL_TREE,
5766 9955 : ns->proc_name->backend_decl,
5767 : false, false);
5768 14081 : for (rent = use_stmt->rename; rent; rent = rent->next)
5769 : {
5770 2587 : tree decl, local_name;
5771 :
5772 2587 : if (rent->op != INTRINSIC_NONE)
5773 104 : continue;
5774 :
5775 2483 : hashval_t hash = htab_hash_string (rent->use_name);
5776 2483 : tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash,
5777 : INSERT);
5778 2483 : if (*slot == NULL)
5779 : {
5780 1377 : gfc_symtree *st;
5781 :
5782 1377 : st = gfc_find_symtree (ns->sym_root,
5783 1377 : rent->local_name[0]
5784 : ? rent->local_name : rent->use_name);
5785 :
5786 : /* The following can happen if a derived type is renamed. */
5787 1377 : if (!st)
5788 : {
5789 0 : char *name;
5790 0 : name = xstrdup (rent->local_name[0]
5791 : ? rent->local_name : rent->use_name);
5792 0 : name[0] = (char) TOUPPER ((unsigned char) name[0]);
5793 0 : st = gfc_find_symtree (ns->sym_root, name);
5794 0 : free (name);
5795 0 : gcc_assert (st);
5796 : }
5797 :
5798 : /* Sometimes, generic interfaces wind up being over-ruled by a
5799 : local symbol (see PR41062). */
5800 1377 : if (!st->n.sym->attr.use_assoc)
5801 : {
5802 2 : *slot = error_mark_node;
5803 2 : entry->decls->clear_slot (slot);
5804 2 : continue;
5805 : }
5806 :
5807 1375 : if (st->n.sym->backend_decl
5808 163 : && DECL_P (st->n.sym->backend_decl)
5809 163 : && st->n.sym->module
5810 163 : && strcmp (st->n.sym->module, use_stmt->module_name) == 0)
5811 : {
5812 154 : gcc_assert (DECL_EXTERNAL (entry->namespace_decl)
5813 : || !VAR_P (st->n.sym->backend_decl));
5814 154 : decl = copy_node (st->n.sym->backend_decl);
5815 154 : DECL_CONTEXT (decl) = entry->namespace_decl;
5816 154 : DECL_EXTERNAL (decl) = 1;
5817 154 : DECL_IGNORED_P (decl) = 0;
5818 154 : DECL_INITIAL (decl) = NULL_TREE;
5819 : }
5820 1221 : else if (st->n.sym->attr.flavor == FL_NAMELIST
5821 0 : && st->n.sym->attr.use_only
5822 0 : && st->n.sym->module
5823 0 : && strcmp (st->n.sym->module, use_stmt->module_name)
5824 : == 0)
5825 : {
5826 0 : decl = generate_namelist_decl (st->n.sym);
5827 0 : DECL_CONTEXT (decl) = entry->namespace_decl;
5828 0 : DECL_EXTERNAL (decl) = 1;
5829 0 : DECL_IGNORED_P (decl) = 0;
5830 0 : DECL_INITIAL (decl) = NULL_TREE;
5831 : }
5832 : else
5833 : {
5834 1221 : *slot = error_mark_node;
5835 1221 : entry->decls->clear_slot (slot);
5836 1221 : continue;
5837 : }
5838 154 : *slot = decl;
5839 : }
5840 1260 : decl = (tree) *slot;
5841 1260 : if (rent->local_name[0])
5842 198 : local_name = get_identifier (rent->local_name);
5843 : else
5844 : local_name = NULL_TREE;
5845 1260 : input_location = gfc_get_location (&rent->where);
5846 1260 : (*debug_hooks->imported_module_or_decl) (decl, local_name,
5847 1260 : ns->proc_name->backend_decl,
5848 1260 : !use_stmt->only_flag,
5849 : false);
5850 : }
5851 : }
5852 93071 : }
5853 :
5854 :
5855 : /* Return true if expr is a constant initializer that gfc_conv_initializer
5856 : will handle. */
5857 :
5858 : static bool
5859 23139 : check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array,
5860 : bool pointer)
5861 : {
5862 23139 : gfc_constructor *c;
5863 23139 : gfc_component *cm;
5864 :
5865 23139 : if (pointer)
5866 : return true;
5867 23135 : else if (array)
5868 : {
5869 2571 : if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL)
5870 : return true;
5871 2543 : else if (expr->expr_type == EXPR_STRUCTURE)
5872 12 : return check_constant_initializer (expr, ts, false, false);
5873 2531 : else if (expr->expr_type != EXPR_ARRAY)
5874 : return false;
5875 2531 : for (c = gfc_constructor_first (expr->value.constructor);
5876 134041 : c; c = gfc_constructor_next (c))
5877 : {
5878 131510 : if (c->iterator)
5879 : return false;
5880 131510 : if (c->expr->expr_type == EXPR_STRUCTURE)
5881 : {
5882 283 : if (!check_constant_initializer (c->expr, ts, false, false))
5883 : return false;
5884 : }
5885 131227 : else if (c->expr->expr_type != EXPR_CONSTANT)
5886 : return false;
5887 : }
5888 : return true;
5889 : }
5890 20564 : else switch (ts->type)
5891 : {
5892 440 : case_bt_struct:
5893 440 : if (expr->expr_type != EXPR_STRUCTURE)
5894 : return false;
5895 440 : cm = expr->ts.u.derived->components;
5896 440 : for (c = gfc_constructor_first (expr->value.constructor);
5897 1003 : c; c = gfc_constructor_next (c), cm = cm->next)
5898 : {
5899 571 : if (!c->expr || cm->attr.allocatable)
5900 14 : continue;
5901 557 : if (!check_constant_initializer (c->expr, &cm->ts,
5902 : cm->attr.dimension,
5903 : cm->attr.pointer))
5904 : return false;
5905 : }
5906 : return true;
5907 20124 : default:
5908 20124 : return expr->expr_type == EXPR_CONSTANT;
5909 : }
5910 : }
5911 :
5912 : /* Emit debug info for parameters and unreferenced variables with
5913 : initializers. */
5914 :
5915 : static void
5916 1196456 : gfc_emit_parameter_debug_info (gfc_symbol *sym)
5917 : {
5918 1196456 : tree decl;
5919 :
5920 1196456 : if (sym->attr.flavor != FL_PARAMETER
5921 950797 : && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced))
5922 : return;
5923 :
5924 283847 : if (sym->backend_decl != NULL
5925 262056 : || sym->value == NULL
5926 233364 : || sym->attr.use_assoc
5927 22347 : || sym->attr.dummy
5928 22347 : || sym->attr.result
5929 22347 : || sym->attr.function
5930 22347 : || sym->attr.intrinsic
5931 22347 : || sym->attr.pointer
5932 22337 : || sym->attr.allocatable
5933 22337 : || sym->attr.cray_pointee
5934 22337 : || sym->attr.threadprivate
5935 22336 : || sym->attr.is_bind_c
5936 22336 : || sym->attr.subref_array_pointer
5937 22336 : || sym->attr.assign)
5938 : return;
5939 :
5940 22336 : if (sym->ts.type == BT_CHARACTER)
5941 : {
5942 1337 : gfc_conv_const_charlen (sym->ts.u.cl);
5943 1337 : if (sym->ts.u.cl->backend_decl == NULL
5944 1337 : || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST)
5945 : return;
5946 : }
5947 20999 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp)
5948 : return;
5949 :
5950 22287 : if (sym->as)
5951 : {
5952 2506 : int n;
5953 :
5954 2506 : if (sym->as->type != AS_EXPLICIT)
5955 : return;
5956 5654 : for (n = 0; n < sym->as->rank; n++)
5957 3148 : if (sym->as->lower[n]->expr_type != EXPR_CONSTANT
5958 3148 : || sym->as->upper[n] == NULL
5959 3148 : || sym->as->upper[n]->expr_type != EXPR_CONSTANT)
5960 : return;
5961 : }
5962 :
5963 22287 : if (!check_constant_initializer (sym->value, &sym->ts,
5964 22287 : sym->attr.dimension, false))
5965 : return;
5966 :
5967 22278 : if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension)
5968 : return;
5969 :
5970 : /* Create the decl for the variable or constant. */
5971 44556 : decl = build_decl (input_location,
5972 22278 : sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL,
5973 : gfc_sym_identifier (sym), gfc_sym_type (sym));
5974 22278 : if (sym->attr.flavor == FL_PARAMETER)
5975 22049 : TREE_READONLY (decl) = 1;
5976 22278 : gfc_set_decl_location (decl, &sym->declared_at);
5977 22278 : if (sym->attr.dimension)
5978 2506 : GFC_DECL_PACKED_ARRAY (decl) = 1;
5979 22278 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5980 22278 : TREE_STATIC (decl) = 1;
5981 22278 : TREE_USED (decl) = 1;
5982 22278 : if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL)
5983 2482 : TREE_PUBLIC (decl) = 1;
5984 22278 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
5985 22278 : TREE_TYPE (decl),
5986 22278 : sym->attr.dimension,
5987 : false, false);
5988 22278 : debug_hooks->early_global_decl (decl);
5989 : }
5990 :
5991 :
5992 : static void
5993 6602 : generate_coarray_sym_init (gfc_symbol *sym)
5994 : {
5995 6602 : tree tmp, size, decl, token, desc;
5996 6602 : bool is_lock_type, is_event_type;
5997 6602 : int reg_type;
5998 6602 : gfc_se se;
5999 6602 : symbol_attribute attr;
6000 :
6001 6602 : if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension
6002 395 : || sym->attr.use_assoc || !sym->attr.referenced
6003 391 : || sym->attr.associate_var
6004 340 : || sym->attr.select_type_temporary)
6005 6262 : return;
6006 :
6007 340 : decl = sym->backend_decl;
6008 340 : TREE_USED(decl) = 1;
6009 340 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl)));
6010 :
6011 680 : is_lock_type = sym->ts.type == BT_DERIVED
6012 152 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6013 374 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE;
6014 :
6015 680 : is_event_type = sym->ts.type == BT_DERIVED
6016 152 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6017 374 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE;
6018 :
6019 : /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108
6020 : to make sure the variable is not optimized away. */
6021 340 : DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1;
6022 :
6023 : /* For lock types, we pass the array size as only the library knows the
6024 : size of the variable. */
6025 340 : if (is_lock_type || is_event_type)
6026 34 : size = gfc_index_one_node;
6027 : else
6028 306 : size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl)));
6029 :
6030 : /* Ensure that we do not have size=0 for zero-sized arrays. */
6031 340 : size = fold_build2_loc (input_location, MAX_EXPR, size_type_node,
6032 : fold_convert (size_type_node, size),
6033 : build_int_cst (size_type_node, 1));
6034 :
6035 340 : if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl)))
6036 : {
6037 109 : tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl));
6038 109 : size = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
6039 : fold_convert (size_type_node, tmp), size);
6040 : }
6041 :
6042 340 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE);
6043 1020 : token = gfc_build_addr_expr (ppvoid_type_node,
6044 340 : GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl)));
6045 340 : if (is_lock_type)
6046 29 : reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC;
6047 311 : else if (is_event_type)
6048 : reg_type = GFC_CAF_EVENT_STATIC;
6049 : else
6050 306 : reg_type = GFC_CAF_COARRAY_STATIC;
6051 :
6052 : /* Compile the symbol attribute. */
6053 340 : if (sym->ts.type == BT_CLASS)
6054 : {
6055 0 : attr = CLASS_DATA (sym)->attr;
6056 : /* The pointer attribute is always set on classes, overwrite it with the
6057 : class_pointer attribute, which denotes the pointer for classes. */
6058 0 : attr.pointer = attr.class_pointer;
6059 : }
6060 : else
6061 340 : attr = sym->attr;
6062 340 : gfc_init_se (&se, NULL);
6063 340 : desc = gfc_conv_scalar_to_descriptor (&se, decl, attr);
6064 340 : gfc_add_block_to_block (&caf_init_block, &se.pre);
6065 :
6066 340 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size,
6067 340 : build_int_cst (integer_type_node, reg_type),
6068 : token, gfc_build_addr_expr (pvoid_type_node, desc),
6069 : null_pointer_node, /* stat. */
6070 : null_pointer_node, /* errgmsg. */
6071 : build_zero_cst (size_type_node)); /* errmsg_len. */
6072 340 : gfc_add_expr_to_block (&caf_init_block, tmp);
6073 340 : gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl),
6074 : gfc_conv_descriptor_data_get (desc)));
6075 :
6076 : /* Handle "static" initializer. */
6077 340 : if (sym->value)
6078 : {
6079 106 : if (sym->value->expr_type == EXPR_ARRAY)
6080 : {
6081 12 : gfc_constructor *c, *cnext;
6082 :
6083 : /* Test if the array has more than one element. */
6084 12 : c = gfc_constructor_first (sym->value->value.constructor);
6085 12 : gcc_assert (c); /* Empty constructor should not happen here. */
6086 12 : cnext = gfc_constructor_next (c);
6087 :
6088 12 : if (cnext)
6089 : {
6090 : /* An EXPR_ARRAY with a rank > 1 here has to come from a
6091 : DATA statement. Set its rank here as not to confuse
6092 : the following steps. */
6093 11 : sym->value->rank = 1;
6094 : }
6095 : else
6096 : {
6097 : /* There is only a single value in the constructor, use
6098 : it directly for the assignment. */
6099 1 : gfc_expr *new_expr;
6100 1 : new_expr = gfc_copy_expr (c->expr);
6101 1 : gfc_free_expr (sym->value);
6102 1 : sym->value = new_expr;
6103 : }
6104 : }
6105 :
6106 106 : sym->attr.pointer = 1;
6107 106 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value,
6108 : true, false);
6109 106 : sym->attr.pointer = 0;
6110 106 : gfc_add_expr_to_block (&caf_init_block, tmp);
6111 : }
6112 234 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp)
6113 : {
6114 32 : tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as
6115 : ? sym->as->rank : 0,
6116 : GFC_STRUCTURE_CAF_MODE_IN_COARRAY);
6117 32 : gfc_add_expr_to_block (&caf_init_block, tmp);
6118 : }
6119 : }
6120 :
6121 : struct caf_accessor
6122 : {
6123 : struct caf_accessor *next;
6124 : gfc_expr *hash, *fdecl;
6125 : };
6126 :
6127 : static struct caf_accessor *caf_accessor_head = NULL;
6128 :
6129 : void
6130 1487 : gfc_add_caf_accessor (gfc_expr *h, gfc_expr *f)
6131 : {
6132 1487 : struct caf_accessor *n = XCNEW (struct caf_accessor);
6133 1487 : n->next = caf_accessor_head;
6134 1487 : n->hash = h;
6135 1487 : n->fdecl = f;
6136 1487 : caf_accessor_head = n;
6137 1487 : }
6138 :
6139 : void
6140 458 : create_caf_accessor_register (stmtblock_t *block)
6141 : {
6142 458 : gfc_se se;
6143 458 : tree hash, fdecl;
6144 458 : gfc_init_se (&se, NULL);
6145 1885 : for (struct caf_accessor *curr = caf_accessor_head; curr;)
6146 : {
6147 1427 : gfc_conv_expr (&se, curr->hash);
6148 1427 : hash = se.expr;
6149 1427 : gfc_conv_expr (&se, curr->fdecl);
6150 1427 : fdecl = se.expr;
6151 1427 : TREE_USED (fdecl) = 1;
6152 1427 : TREE_STATIC (fdecl) = 1;
6153 1427 : gcc_assert (FUNCTION_POINTER_TYPE_P (TREE_TYPE (fdecl)));
6154 1427 : gfc_add_expr_to_block (
6155 : block, build_call_expr (gfor_fndecl_caf_register_accessor, 2, hash,
6156 : /*gfc_build_addr_expr (NULL_TREE,*/ fdecl));
6157 1427 : curr = curr->next;
6158 1427 : free (caf_accessor_head);
6159 1427 : caf_accessor_head = curr;
6160 : }
6161 458 : gfc_add_expr_to_block (
6162 : block, build_call_expr (gfor_fndecl_caf_register_accessors_finish, 0));
6163 458 : }
6164 :
6165 : /* Generate constructor function to initialize static, nonallocatable
6166 : coarrays. */
6167 :
6168 : static void
6169 458 : generate_coarray_init (gfc_namespace *ns)
6170 : {
6171 458 : tree fndecl, tmp, decl, save_fn_decl;
6172 :
6173 458 : save_fn_decl = current_function_decl;
6174 458 : push_function_context ();
6175 :
6176 458 : tmp = build_function_type_list (void_type_node, NULL_TREE);
6177 458 : fndecl = build_decl (input_location, FUNCTION_DECL,
6178 : create_tmp_var_name ("_caf_init"), tmp);
6179 :
6180 458 : DECL_STATIC_CONSTRUCTOR (fndecl) = 1;
6181 458 : SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY);
6182 :
6183 458 : decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node);
6184 458 : DECL_ARTIFICIAL (decl) = 1;
6185 458 : DECL_IGNORED_P (decl) = 1;
6186 458 : DECL_CONTEXT (decl) = fndecl;
6187 458 : DECL_RESULT (fndecl) = decl;
6188 :
6189 458 : pushdecl (fndecl);
6190 458 : current_function_decl = fndecl;
6191 458 : announce_function (fndecl);
6192 :
6193 458 : rest_of_decl_compilation (fndecl, 0, 0);
6194 458 : make_decl_rtl (fndecl);
6195 458 : allocate_struct_function (fndecl, false);
6196 :
6197 458 : pushlevel ();
6198 458 : gfc_init_block (&caf_init_block);
6199 :
6200 458 : create_caf_accessor_register (&caf_init_block);
6201 :
6202 458 : gfc_traverse_ns (ns, generate_coarray_sym_init);
6203 :
6204 458 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block);
6205 458 : decl = getdecls ();
6206 :
6207 458 : poplevel (1, 1);
6208 458 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
6209 :
6210 916 : DECL_SAVED_TREE (fndecl)
6211 916 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
6212 916 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
6213 458 : dump_function (TDI_original, fndecl);
6214 :
6215 458 : cfun->function_end_locus = input_location;
6216 458 : set_cfun (NULL);
6217 :
6218 458 : if (decl_function_context (fndecl))
6219 440 : (void) cgraph_node::create (fndecl);
6220 : else
6221 18 : cgraph_node::finalize_function (fndecl, true);
6222 :
6223 458 : pop_function_context ();
6224 458 : current_function_decl = save_fn_decl;
6225 458 : }
6226 :
6227 :
6228 : static void
6229 141774 : create_module_nml_decl (gfc_symbol *sym)
6230 : {
6231 141774 : if (sym->attr.flavor == FL_NAMELIST)
6232 : {
6233 45 : tree decl = generate_namelist_decl (sym);
6234 45 : pushdecl (decl);
6235 45 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
6236 45 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6237 45 : rest_of_decl_compilation (decl, 1, 0);
6238 45 : gfc_module_add_decl (cur_module, decl);
6239 : }
6240 141774 : }
6241 :
6242 : static void
6243 265752 : gfc_handle_omp_declare_variant (gfc_symbol * sym)
6244 : {
6245 265752 : if (sym->attr.external
6246 86114 : && sym->formal_ns
6247 82284 : && sym->formal_ns->omp_declare_variant)
6248 : {
6249 26 : gfc_namespace *ns = gfc_current_ns;
6250 26 : gfc_current_ns = sym->ns;
6251 26 : gfc_get_symbol_decl (sym);
6252 26 : gfc_current_ns = ns;
6253 : }
6254 265752 : }
6255 :
6256 : /* Generate all the required code for module variables. */
6257 :
6258 : void
6259 8982 : gfc_generate_module_vars (gfc_namespace * ns)
6260 : {
6261 8982 : module_namespace = ns;
6262 8982 : cur_module = gfc_find_module (ns->proc_name->name);
6263 :
6264 : /* Check if the frontend left the namespace in a reasonable state. */
6265 8982 : gcc_assert (ns->proc_name && !ns->proc_name->tlink);
6266 :
6267 : /* Generate COMMON blocks. */
6268 8982 : gfc_trans_common (ns);
6269 :
6270 8982 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
6271 :
6272 : /* Create decls for all the module variables. */
6273 8982 : gfc_traverse_ns (ns, gfc_create_module_variable);
6274 8982 : gfc_traverse_ns (ns, create_module_nml_decl);
6275 :
6276 8982 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
6277 18 : generate_coarray_init (ns);
6278 :
6279 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
6280 : especially as some late diagnostic is only done on tree level. */
6281 8982 : if (flag_openmp)
6282 1071 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
6283 :
6284 8982 : cur_module = NULL;
6285 :
6286 8982 : gfc_trans_use_stmts (ns);
6287 8982 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
6288 8982 : }
6289 :
6290 :
6291 : static void
6292 84089 : gfc_generate_contained_functions (gfc_namespace * parent)
6293 : {
6294 84089 : gfc_namespace *ns;
6295 :
6296 : /* We create all the prototypes before generating any code. */
6297 106962 : for (ns = parent->contained; ns; ns = ns->sibling)
6298 : {
6299 : /* Skip namespaces from used modules. */
6300 22873 : if (ns->parent != parent)
6301 0 : continue;
6302 :
6303 22873 : gfc_create_function_decl (ns, false);
6304 : }
6305 :
6306 106962 : for (ns = parent->contained; ns; ns = ns->sibling)
6307 : {
6308 : /* Skip namespaces from used modules. */
6309 22873 : if (ns->parent != parent)
6310 0 : continue;
6311 :
6312 22873 : gfc_generate_function_code (ns);
6313 : }
6314 84089 : }
6315 :
6316 :
6317 : /* Drill down through expressions for the array specification bounds and
6318 : character length calling generate_local_decl for all those variables
6319 : that have not already been declared. */
6320 :
6321 : static void
6322 : generate_local_decl (gfc_symbol *);
6323 :
6324 : /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */
6325 :
6326 : static bool
6327 112894 : expr_decls (gfc_expr *e, gfc_symbol *sym,
6328 : int *f ATTRIBUTE_UNUSED)
6329 : {
6330 112894 : if (e->expr_type != EXPR_VARIABLE
6331 7837 : || sym == e->symtree->n.sym
6332 7824 : || e->symtree->n.sym->mark
6333 738 : || e->symtree->n.sym->ns != sym->ns)
6334 : return false;
6335 :
6336 738 : generate_local_decl (e->symtree->n.sym);
6337 738 : return false;
6338 : }
6339 :
6340 : static void
6341 150564 : generate_expr_decls (gfc_symbol *sym, gfc_expr *e)
6342 : {
6343 0 : gfc_traverse_expr (e, sym, expr_decls, 0);
6344 1058 : }
6345 :
6346 :
6347 : /* Check for dependencies in the character length and array spec. */
6348 :
6349 : static void
6350 193009 : generate_dependency_declarations (gfc_symbol *sym)
6351 : {
6352 193009 : int i;
6353 :
6354 193009 : if (sym->ts.type == BT_CHARACTER
6355 17290 : && sym->ts.u.cl
6356 17290 : && sym->ts.u.cl->length
6357 14196 : && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT)
6358 1058 : generate_expr_decls (sym, sym->ts.u.cl->length);
6359 :
6360 193009 : if (sym->as && sym->as->rank)
6361 : {
6362 126424 : for (i = 0; i < sym->as->rank; i++)
6363 : {
6364 74753 : generate_expr_decls (sym, sym->as->lower[i]);
6365 74753 : generate_expr_decls (sym, sym->as->upper[i]);
6366 : }
6367 : }
6368 193009 : }
6369 :
6370 :
6371 : /* Generate decls for all local variables. We do this to ensure correct
6372 : handling of expressions which only appear in the specification of
6373 : other functions. */
6374 :
6375 : static void
6376 1080380 : generate_local_decl (gfc_symbol * sym)
6377 : {
6378 1080380 : if (sym->attr.flavor == FL_VARIABLE)
6379 : {
6380 286734 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
6381 581 : && sym->attr.referenced && !sym->attr.use_assoc)
6382 531 : has_coarray_vars_or_accessors = true;
6383 :
6384 286734 : if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master)
6385 193009 : generate_dependency_declarations (sym);
6386 :
6387 286734 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
6388 : {
6389 2 : if (sym->attr.dummy)
6390 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6391 : "dummy argument", sym->name, &sym->declared_at);
6392 : else
6393 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6394 : "local variable", sym->name, &sym->declared_at);
6395 : }
6396 :
6397 286734 : if (sym->attr.referenced)
6398 252683 : gfc_get_symbol_decl (sym);
6399 :
6400 : /* Warnings for unused dummy arguments. */
6401 34051 : else if (sym->attr.dummy && !sym->attr.in_namelist)
6402 : {
6403 : /* INTENT(out) dummy arguments are likely meant to be set. */
6404 6540 : if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT)
6405 : {
6406 9 : if (sym->ts.type != BT_DERIVED)
6407 6 : gfc_warning (OPT_Wunused_dummy_argument,
6408 : "Dummy argument %qs at %L was declared "
6409 : "INTENT(OUT) but was not set", sym->name,
6410 : &sym->declared_at);
6411 3 : else if (!gfc_has_default_initializer (sym->ts.u.derived)
6412 3 : && !sym->ts.u.derived->attr.zero_comp)
6413 1 : gfc_warning (OPT_Wunused_dummy_argument,
6414 : "Derived-type dummy argument %qs at %L was "
6415 : "declared INTENT(OUT) but was not set and "
6416 : "does not have a default initializer",
6417 : sym->name, &sym->declared_at);
6418 9 : if (sym->backend_decl != NULL_TREE)
6419 9 : suppress_warning (sym->backend_decl);
6420 : }
6421 6531 : else if (warn_unused_dummy_argument)
6422 : {
6423 12 : if (!sym->attr.artificial)
6424 4 : gfc_warning (OPT_Wunused_dummy_argument,
6425 : "Unused dummy argument %qs at %L", sym->name,
6426 : &sym->declared_at);
6427 :
6428 12 : if (sym->backend_decl != NULL_TREE)
6429 4 : suppress_warning (sym->backend_decl);
6430 : }
6431 : }
6432 :
6433 : /* Warn for unused variables, but not if they're inside a common
6434 : block or a namelist. */
6435 27511 : else if (warn_unused_variable
6436 45 : && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist))
6437 : {
6438 43 : if (sym->attr.use_only)
6439 : {
6440 1 : gfc_warning (OPT_Wunused_variable,
6441 : "Unused module variable %qs which has been "
6442 : "explicitly imported at %L", sym->name,
6443 : &sym->declared_at);
6444 1 : if (sym->backend_decl != NULL_TREE)
6445 0 : suppress_warning (sym->backend_decl);
6446 : }
6447 42 : else if (!sym->attr.use_assoc)
6448 : {
6449 : /* Corner case: the symbol may be an entry point. At this point,
6450 : it may appear to be an unused variable. Suppress warning. */
6451 8 : bool enter = false;
6452 8 : gfc_entry_list *el;
6453 :
6454 14 : for (el = sym->ns->entries; el; el=el->next)
6455 6 : if (strcmp(sym->name, el->sym->name) == 0)
6456 2 : enter = true;
6457 :
6458 8 : if (!enter)
6459 6 : gfc_warning (OPT_Wunused_variable,
6460 : "Unused variable %qs declared at %L",
6461 : sym->name, &sym->declared_at);
6462 8 : if (sym->backend_decl != NULL_TREE)
6463 0 : suppress_warning (sym->backend_decl);
6464 : }
6465 : }
6466 :
6467 : /* For variable length CHARACTER parameters, the PARM_DECL already
6468 : references the length variable, so force gfc_get_symbol_decl
6469 : even when not referenced. If optimize > 0, it will be optimized
6470 : away anyway. But do this only after emitting -Wunused-parameter
6471 : warning if requested. */
6472 286734 : if (sym->attr.dummy && !sym->attr.referenced
6473 6543 : && sym->ts.type == BT_CHARACTER
6474 815 : && sym->ts.u.cl->backend_decl != NULL
6475 810 : && VAR_P (sym->ts.u.cl->backend_decl))
6476 : {
6477 6 : sym->attr.referenced = 1;
6478 6 : gfc_get_symbol_decl (sym);
6479 : }
6480 :
6481 : /* INTENT(out) dummy arguments and result variables with allocatable
6482 : components are reset by default and need to be set referenced to
6483 : generate the code for nullification and automatic lengths. */
6484 286734 : if (!sym->attr.referenced
6485 34045 : && sym->ts.type == BT_DERIVED
6486 20206 : && sym->ts.u.derived->attr.alloc_comp
6487 1552 : && !sym->attr.pointer
6488 1551 : && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT)
6489 1515 : ||
6490 1515 : (sym->attr.result && sym != sym->result)))
6491 : {
6492 36 : sym->attr.referenced = 1;
6493 36 : gfc_get_symbol_decl (sym);
6494 : }
6495 :
6496 : /* Check for dependencies in the array specification and string
6497 : length, adding the necessary declarations to the function. We
6498 : mark the symbol now, as well as in traverse_ns, to prevent
6499 : getting stuck in a circular dependency. */
6500 286734 : sym->mark = 1;
6501 : }
6502 793646 : else if (sym->attr.flavor == FL_PARAMETER)
6503 : {
6504 206358 : if (warn_unused_parameter
6505 488 : && !sym->attr.referenced)
6506 : {
6507 431 : if (!sym->attr.use_assoc)
6508 4 : gfc_warning (OPT_Wunused_parameter,
6509 : "Unused parameter %qs declared at %L", sym->name,
6510 : &sym->declared_at);
6511 427 : else if (sym->attr.use_only)
6512 1 : gfc_warning (OPT_Wunused_parameter,
6513 : "Unused parameter %qs which has been explicitly "
6514 : "imported at %L", sym->name, &sym->declared_at);
6515 : }
6516 :
6517 206358 : if (sym->ns && sym->ns->construct_entities)
6518 : {
6519 : /* Construction of the intrinsic modules within a BLOCK
6520 : construct, where ONLY and RENAMED entities are included,
6521 : seems to be bogus. This is a workaround that can be removed
6522 : if someone ever takes on the task to creating full-fledge
6523 : modules. See PR 69455. */
6524 78 : if (sym->attr.referenced
6525 78 : && sym->from_intmod != INTMOD_ISO_C_BINDING
6526 54 : && sym->from_intmod != INTMOD_ISO_FORTRAN_ENV)
6527 26 : gfc_get_symbol_decl (sym);
6528 78 : sym->mark = 1;
6529 : }
6530 : }
6531 587288 : else if (sym->attr.flavor == FL_PROCEDURE)
6532 : {
6533 : /* TODO: move to the appropriate place in resolve.cc. */
6534 488473 : if (warn_return_type > 0
6535 4704 : && sym->attr.function
6536 3430 : && sym->result
6537 3222 : && sym != sym->result
6538 444 : && !sym->result->attr.referenced
6539 36 : && !sym->attr.use_assoc
6540 23 : && sym->attr.if_source != IFSRC_IFBODY)
6541 : {
6542 23 : gfc_warning (OPT_Wreturn_type,
6543 : "Return value %qs of function %qs declared at "
6544 : "%L not set", sym->result->name, sym->name,
6545 : &sym->result->declared_at);
6546 :
6547 : /* Prevents "Unused variable" warning for RESULT variables. */
6548 23 : sym->result->mark = 1;
6549 : }
6550 : }
6551 :
6552 1080380 : if (sym->attr.dummy == 1)
6553 : {
6554 : /* The tree type for scalar character dummy arguments of BIND(C)
6555 : procedures, if they are passed by value, should be unsigned char.
6556 : The value attribute implies the dummy is a scalar. */
6557 100474 : if (sym->attr.value == 1 && sym->backend_decl != NULL
6558 8297 : && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop
6559 254 : && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c)
6560 : {
6561 : /* We used to modify the tree here. Now it is done earlier in
6562 : the front-end, so we only check it here to avoid regressions. */
6563 242 : gcc_assert (TREE_CODE (TREE_TYPE (sym->backend_decl)) == INTEGER_TYPE);
6564 242 : gcc_assert (TYPE_UNSIGNED (TREE_TYPE (sym->backend_decl)) == 1);
6565 242 : gcc_assert (TYPE_PRECISION (TREE_TYPE (sym->backend_decl)) == CHAR_TYPE_SIZE);
6566 242 : gcc_assert (DECL_BY_REFERENCE (sym->backend_decl) == 0);
6567 : }
6568 :
6569 : /* Unused procedure passed as dummy argument. */
6570 100474 : if (sym->attr.flavor == FL_PROCEDURE)
6571 : {
6572 900 : if (!sym->attr.referenced && !sym->attr.artificial)
6573 : {
6574 58 : if (warn_unused_dummy_argument)
6575 2 : gfc_warning (OPT_Wunused_dummy_argument,
6576 : "Unused dummy argument %qs at %L", sym->name,
6577 : &sym->declared_at);
6578 : }
6579 :
6580 : /* Silence bogus "unused parameter" warnings from the
6581 : middle end. */
6582 900 : if (sym->backend_decl != NULL_TREE)
6583 899 : suppress_warning (sym->backend_decl);
6584 : }
6585 : }
6586 :
6587 : /* Make sure we convert the types of the derived types from iso_c_binding
6588 : into (void *). */
6589 1080380 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
6590 79480 : && sym->ts.type == BT_DERIVED)
6591 3361 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
6592 1080380 : }
6593 :
6594 :
6595 : static void
6596 1080387 : generate_local_nml_decl (gfc_symbol * sym)
6597 : {
6598 1080387 : if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc)
6599 : {
6600 698 : tree decl = generate_namelist_decl (sym);
6601 698 : pushdecl (decl);
6602 : }
6603 1080387 : }
6604 :
6605 :
6606 : static void
6607 97937 : generate_local_vars (gfc_namespace * ns)
6608 : {
6609 97937 : gfc_traverse_ns (ns, generate_local_decl);
6610 97937 : gfc_traverse_ns (ns, generate_local_nml_decl);
6611 97937 : }
6612 :
6613 :
6614 : /* Generate a switch statement to jump to the correct entry point. Also
6615 : creates the label decls for the entry points. */
6616 :
6617 : static tree
6618 632 : gfc_trans_entry_master_switch (gfc_entry_list * el)
6619 : {
6620 632 : stmtblock_t block;
6621 632 : tree label;
6622 632 : tree tmp;
6623 632 : tree val;
6624 :
6625 632 : gfc_init_block (&block);
6626 2605 : for (; el; el = el->next)
6627 : {
6628 : /* Add the case label. */
6629 1341 : label = gfc_build_label_decl (NULL_TREE);
6630 1341 : val = build_int_cst (gfc_array_index_type, el->id);
6631 1341 : tmp = build_case_label (val, NULL_TREE, label);
6632 1341 : gfc_add_expr_to_block (&block, tmp);
6633 :
6634 : /* And jump to the actual entry point. */
6635 1341 : label = gfc_build_label_decl (NULL_TREE);
6636 1341 : tmp = build1_v (GOTO_EXPR, label);
6637 1341 : gfc_add_expr_to_block (&block, tmp);
6638 :
6639 : /* Save the label decl. */
6640 1341 : el->label = label;
6641 : }
6642 632 : tmp = gfc_finish_block (&block);
6643 : /* The first argument selects the entry point. */
6644 632 : val = DECL_ARGUMENTS (current_function_decl);
6645 632 : tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp);
6646 632 : return tmp;
6647 : }
6648 :
6649 :
6650 : /* Add code to string lengths of actual arguments passed to a function against
6651 : the expected lengths of the dummy arguments. */
6652 :
6653 : static void
6654 2803 : add_argument_checking (stmtblock_t *block, gfc_symbol *sym)
6655 : {
6656 2803 : gfc_formal_arglist *formal;
6657 :
6658 5500 : for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next)
6659 2697 : if (formal->sym && formal->sym->ts.type == BT_CHARACTER
6660 604 : && !formal->sym->ts.deferred)
6661 : {
6662 554 : enum tree_code comparison;
6663 554 : tree cond;
6664 554 : tree argname;
6665 554 : gfc_symbol *fsym;
6666 554 : gfc_charlen *cl;
6667 554 : const char *message;
6668 :
6669 554 : fsym = formal->sym;
6670 554 : cl = fsym->ts.u.cl;
6671 :
6672 554 : gcc_assert (cl);
6673 554 : gcc_assert (cl->passed_length != NULL_TREE);
6674 554 : gcc_assert (cl->backend_decl != NULL_TREE);
6675 :
6676 : /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the
6677 : string lengths must match exactly. Otherwise, it is only required
6678 : that the actual string length is *at least* the expected one.
6679 : Sequence association allows for a mismatch of the string length
6680 : if the actual argument is (part of) an array, but only if the
6681 : dummy argument is an array. (See "Sequence association" in
6682 : Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */
6683 554 : if (fsym->attr.pointer || fsym->attr.allocatable
6684 446 : || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE
6685 33 : || fsym->as->type == AS_ASSUMED_RANK)))
6686 : {
6687 196 : comparison = NE_EXPR;
6688 196 : message = _("Actual string length does not match the declared one"
6689 : " for dummy argument '%s' (%ld/%ld)");
6690 : }
6691 358 : else if ((fsym->as && fsym->as->rank != 0) || fsym->attr.artificial)
6692 33 : continue;
6693 : else
6694 : {
6695 325 : comparison = LT_EXPR;
6696 325 : message = _("Actual string length is shorter than the declared one"
6697 : " for dummy argument '%s' (%ld/%ld)");
6698 : }
6699 :
6700 : /* Build the condition. For optional arguments, an actual length
6701 : of 0 is also acceptable if the associated string is NULL, which
6702 : means the argument was not passed. */
6703 521 : cond = fold_build2_loc (input_location, comparison, logical_type_node,
6704 : cl->passed_length, cl->backend_decl);
6705 521 : if (fsym->attr.optional)
6706 : {
6707 45 : tree not_absent;
6708 45 : tree not_0length;
6709 45 : tree absent_failed;
6710 :
6711 45 : not_0length = fold_build2_loc (input_location, NE_EXPR,
6712 : logical_type_node,
6713 : cl->passed_length,
6714 : build_zero_cst
6715 45 : (TREE_TYPE (cl->passed_length)));
6716 : /* The symbol needs to be referenced for gfc_get_symbol_decl. */
6717 45 : fsym->attr.referenced = 1;
6718 45 : not_absent = gfc_conv_expr_present (fsym);
6719 :
6720 45 : absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR,
6721 : logical_type_node, not_0length,
6722 : not_absent);
6723 :
6724 45 : cond = fold_build2_loc (input_location, TRUTH_AND_EXPR,
6725 : logical_type_node, cond, absent_failed);
6726 : }
6727 :
6728 : /* Build the runtime check. */
6729 521 : argname = gfc_build_cstring_const (fsym->name);
6730 521 : argname = gfc_build_addr_expr (pchar_type_node, argname);
6731 521 : gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at,
6732 : message, argname,
6733 : fold_convert (long_integer_type_node,
6734 : cl->passed_length),
6735 : fold_convert (long_integer_type_node,
6736 : cl->backend_decl));
6737 : }
6738 2803 : }
6739 :
6740 :
6741 : static void
6742 26026 : create_main_function (tree fndecl)
6743 : {
6744 26026 : tree old_context;
6745 26026 : tree ftn_main;
6746 26026 : tree tmp, decl, result_decl, argc, argv, typelist, arglist;
6747 26026 : stmtblock_t body;
6748 :
6749 26026 : old_context = current_function_decl;
6750 :
6751 26026 : if (old_context)
6752 : {
6753 0 : push_function_context ();
6754 0 : saved_parent_function_decls = saved_function_decls;
6755 0 : saved_function_decls = NULL_TREE;
6756 : }
6757 :
6758 : /* main() function must be declared with global scope. */
6759 26026 : gcc_assert (current_function_decl == NULL_TREE);
6760 :
6761 : /* Declare the function. */
6762 26026 : tmp = build_function_type_list (integer_type_node, integer_type_node,
6763 : build_pointer_type (pchar_type_node),
6764 : NULL_TREE);
6765 26026 : main_identifier_node = get_identifier ("main");
6766 26026 : ftn_main = build_decl (input_location, FUNCTION_DECL,
6767 : main_identifier_node, tmp);
6768 26026 : DECL_EXTERNAL (ftn_main) = 0;
6769 26026 : TREE_PUBLIC (ftn_main) = 1;
6770 26026 : TREE_STATIC (ftn_main) = 1;
6771 26026 : DECL_ATTRIBUTES (ftn_main)
6772 26026 : = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE);
6773 :
6774 : /* Setup the result declaration (for "return 0"). */
6775 26026 : result_decl = build_decl (input_location,
6776 : RESULT_DECL, NULL_TREE, integer_type_node);
6777 26026 : DECL_ARTIFICIAL (result_decl) = 1;
6778 26026 : DECL_IGNORED_P (result_decl) = 1;
6779 26026 : DECL_CONTEXT (result_decl) = ftn_main;
6780 26026 : DECL_RESULT (ftn_main) = result_decl;
6781 :
6782 26026 : pushdecl (ftn_main);
6783 :
6784 : /* Get the arguments. */
6785 :
6786 26026 : arglist = NULL_TREE;
6787 26026 : typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main));
6788 :
6789 26026 : tmp = TREE_VALUE (typelist);
6790 26026 : argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp);
6791 26026 : DECL_CONTEXT (argc) = ftn_main;
6792 26026 : DECL_ARG_TYPE (argc) = TREE_VALUE (typelist);
6793 26026 : TREE_READONLY (argc) = 1;
6794 26026 : gfc_finish_decl (argc);
6795 26026 : arglist = chainon (arglist, argc);
6796 :
6797 26026 : typelist = TREE_CHAIN (typelist);
6798 26026 : tmp = TREE_VALUE (typelist);
6799 26026 : argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp);
6800 26026 : DECL_CONTEXT (argv) = ftn_main;
6801 26026 : DECL_ARG_TYPE (argv) = TREE_VALUE (typelist);
6802 26026 : TREE_READONLY (argv) = 1;
6803 26026 : DECL_BY_REFERENCE (argv) = 1;
6804 26026 : gfc_finish_decl (argv);
6805 26026 : arglist = chainon (arglist, argv);
6806 :
6807 26026 : DECL_ARGUMENTS (ftn_main) = arglist;
6808 26026 : current_function_decl = ftn_main;
6809 26026 : announce_function (ftn_main);
6810 :
6811 26026 : rest_of_decl_compilation (ftn_main, 1, 0);
6812 26026 : make_decl_rtl (ftn_main);
6813 26026 : allocate_struct_function (ftn_main, false);
6814 26026 : pushlevel ();
6815 :
6816 26026 : gfc_init_block (&body);
6817 :
6818 : /* Call some libgfortran initialization routines, call then MAIN__(). */
6819 :
6820 : /* Call _gfortran_caf_init (*argc, ***argv). */
6821 26026 : if (flag_coarray == GFC_FCOARRAY_LIB)
6822 : {
6823 395 : tree pint_type, pppchar_type;
6824 395 : pint_type = build_pointer_type (integer_type_node);
6825 395 : pppchar_type
6826 395 : = build_pointer_type (build_pointer_type (pchar_type_node));
6827 :
6828 395 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2,
6829 : gfc_build_addr_expr (pint_type, argc),
6830 : gfc_build_addr_expr (pppchar_type, argv));
6831 395 : gfc_add_expr_to_block (&body, tmp);
6832 : }
6833 :
6834 : /* Call _gfortran_set_args (argc, argv). */
6835 26026 : TREE_USED (argc) = 1;
6836 26026 : TREE_USED (argv) = 1;
6837 26026 : tmp = build_call_expr_loc (input_location,
6838 : gfor_fndecl_set_args, 2, argc, argv);
6839 26026 : gfc_add_expr_to_block (&body, tmp);
6840 :
6841 : /* Add a call to set_options to set up the runtime library Fortran
6842 : language standard parameters. */
6843 26026 : {
6844 26026 : tree array_type, array, var;
6845 26026 : vec<constructor_elt, va_gc> *v = NULL;
6846 26026 : static const int noptions = 7;
6847 :
6848 : /* Passing a new option to the library requires three modifications:
6849 : + add it to the tree_cons list below
6850 : + change the noptions variable above
6851 : + modify the library (runtime/compile_options.c)! */
6852 :
6853 26026 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6854 : build_int_cst (integer_type_node,
6855 : gfc_option.warn_std));
6856 26026 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6857 : build_int_cst (integer_type_node,
6858 : gfc_option.allow_std));
6859 26026 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6860 : build_int_cst (integer_type_node, pedantic));
6861 26026 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6862 : build_int_cst (integer_type_node, flag_backtrace));
6863 26026 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6864 : build_int_cst (integer_type_node, flag_sign_zero));
6865 26026 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6866 : build_int_cst (integer_type_node,
6867 : (gfc_option.rtcheck
6868 : & GFC_RTCHECK_BOUNDS)));
6869 26026 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6870 : build_int_cst (integer_type_node,
6871 : gfc_option.fpe_summary));
6872 :
6873 26026 : array_type = build_array_type_nelts (integer_type_node, noptions);
6874 26026 : array = build_constructor (array_type, v);
6875 26026 : TREE_CONSTANT (array) = 1;
6876 26026 : TREE_STATIC (array) = 1;
6877 :
6878 : /* Create a static variable to hold the jump table. */
6879 26026 : var = build_decl (input_location, VAR_DECL,
6880 : create_tmp_var_name ("options"), array_type);
6881 26026 : DECL_ARTIFICIAL (var) = 1;
6882 26026 : DECL_IGNORED_P (var) = 1;
6883 26026 : TREE_CONSTANT (var) = 1;
6884 26026 : TREE_STATIC (var) = 1;
6885 26026 : TREE_READONLY (var) = 1;
6886 26026 : DECL_INITIAL (var) = array;
6887 26026 : pushdecl (var);
6888 26026 : var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var);
6889 :
6890 26026 : tmp = build_call_expr_loc (input_location,
6891 : gfor_fndecl_set_options, 2,
6892 : build_int_cst (integer_type_node, noptions), var);
6893 26026 : gfc_add_expr_to_block (&body, tmp);
6894 : }
6895 :
6896 : /* If -ffpe-trap option was provided, add a call to set_fpe so that
6897 : the library will raise a FPE when needed. */
6898 26026 : if (gfc_option.fpe != 0)
6899 : {
6900 6 : tmp = build_call_expr_loc (input_location,
6901 : gfor_fndecl_set_fpe, 1,
6902 : build_int_cst (integer_type_node,
6903 6 : gfc_option.fpe));
6904 6 : gfc_add_expr_to_block (&body, tmp);
6905 : }
6906 :
6907 : /* If this is the main program and an -fconvert option was provided,
6908 : add a call to set_convert. */
6909 :
6910 26026 : if (flag_convert != GFC_FLAG_CONVERT_NATIVE)
6911 : {
6912 12 : tmp = build_call_expr_loc (input_location,
6913 : gfor_fndecl_set_convert, 1,
6914 12 : build_int_cst (integer_type_node, flag_convert));
6915 12 : gfc_add_expr_to_block (&body, tmp);
6916 : }
6917 :
6918 : /* If this is the main program and an -frecord-marker option was provided,
6919 : add a call to set_record_marker. */
6920 :
6921 26026 : if (flag_record_marker != 0)
6922 : {
6923 18 : tmp = build_call_expr_loc (input_location,
6924 : gfor_fndecl_set_record_marker, 1,
6925 : build_int_cst (integer_type_node,
6926 18 : flag_record_marker));
6927 18 : gfc_add_expr_to_block (&body, tmp);
6928 : }
6929 :
6930 26026 : if (flag_max_subrecord_length != 0)
6931 : {
6932 6 : tmp = build_call_expr_loc (input_location,
6933 : gfor_fndecl_set_max_subrecord_length, 1,
6934 : build_int_cst (integer_type_node,
6935 6 : flag_max_subrecord_length));
6936 6 : gfc_add_expr_to_block (&body, tmp);
6937 : }
6938 :
6939 : /* Call MAIN__(). */
6940 26026 : tmp = build_call_expr_loc (input_location,
6941 : fndecl, 0);
6942 26026 : gfc_add_expr_to_block (&body, tmp);
6943 :
6944 : /* Mark MAIN__ as used. */
6945 26026 : TREE_USED (fndecl) = 1;
6946 :
6947 : /* Coarray: Call _gfortran_caf_finalize(void). */
6948 26026 : if (flag_coarray == GFC_FCOARRAY_LIB)
6949 : {
6950 395 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0);
6951 395 : gfc_add_expr_to_block (&body, tmp);
6952 : }
6953 :
6954 : /* "return 0". */
6955 26026 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node,
6956 26026 : DECL_RESULT (ftn_main),
6957 : integer_zero_node);
6958 26026 : tmp = build1_v (RETURN_EXPR, tmp);
6959 26026 : gfc_add_expr_to_block (&body, tmp);
6960 :
6961 :
6962 26026 : DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body);
6963 26026 : decl = getdecls ();
6964 :
6965 : /* Finish off this function and send it for code generation. */
6966 26026 : poplevel (1, 1);
6967 26026 : BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main;
6968 :
6969 52052 : DECL_SAVED_TREE (ftn_main)
6970 52052 : = fold_build3_loc (DECL_SOURCE_LOCATION (ftn_main), BIND_EXPR,
6971 26026 : void_type_node, decl, DECL_SAVED_TREE (ftn_main),
6972 26026 : DECL_INITIAL (ftn_main));
6973 :
6974 : /* Output the GENERIC tree. */
6975 26026 : dump_function (TDI_original, ftn_main);
6976 :
6977 26026 : cgraph_node::finalize_function (ftn_main, true);
6978 :
6979 26026 : if (old_context)
6980 : {
6981 0 : pop_function_context ();
6982 0 : saved_function_decls = saved_parent_function_decls;
6983 : }
6984 26026 : current_function_decl = old_context;
6985 26026 : }
6986 :
6987 :
6988 : /* Generate an appropriate return-statement for a procedure. */
6989 :
6990 : tree
6991 14901 : gfc_generate_return (void)
6992 : {
6993 14901 : gfc_symbol* sym;
6994 14901 : tree result;
6995 14901 : tree fndecl;
6996 :
6997 14901 : sym = current_procedure_symbol;
6998 14901 : fndecl = sym->backend_decl;
6999 :
7000 14901 : if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node)
7001 : result = NULL_TREE;
7002 : else
7003 : {
7004 12650 : result = get_proc_result (sym);
7005 :
7006 : /* Set the return value to the dummy result variable. The
7007 : types may be different for scalar default REAL functions
7008 : with -ff2c, therefore we have to convert. */
7009 12650 : if (result != NULL_TREE)
7010 : {
7011 12639 : result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result);
7012 25278 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7013 12639 : TREE_TYPE (result), DECL_RESULT (fndecl),
7014 : result);
7015 : }
7016 : else
7017 : {
7018 : /* If the function does not have a result variable, result is
7019 : NULL_TREE, and a 'return' is generated without a variable.
7020 : The following generates a 'return __result_XXX' where XXX is
7021 : the function name. */
7022 11 : if (sym == sym->result && sym->attr.function && !flag_f2c)
7023 : {
7024 8 : result = gfc_get_fake_result_decl (sym, 0);
7025 16 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7026 8 : TREE_TYPE (result),
7027 8 : DECL_RESULT (fndecl), result);
7028 : }
7029 : }
7030 : }
7031 :
7032 14901 : return build1_v (RETURN_EXPR, result);
7033 : }
7034 :
7035 :
7036 : static void
7037 1049987 : is_from_ieee_module (gfc_symbol *sym)
7038 : {
7039 1049987 : if (sym->from_intmod == INTMOD_IEEE_FEATURES
7040 : || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS
7041 1049987 : || sym->from_intmod == INTMOD_IEEE_ARITHMETIC)
7042 121726 : seen_ieee_symbol = 1;
7043 1049987 : }
7044 :
7045 :
7046 : static int
7047 84089 : is_ieee_module_used (gfc_namespace *ns)
7048 : {
7049 84089 : seen_ieee_symbol = 0;
7050 0 : gfc_traverse_ns (ns, is_from_ieee_module);
7051 84089 : return seen_ieee_symbol;
7052 : }
7053 :
7054 :
7055 : static gfc_omp_clauses *module_oacc_clauses;
7056 :
7057 :
7058 : static void
7059 146 : add_clause (gfc_symbol *sym, gfc_omp_map_op map_op)
7060 : {
7061 146 : gfc_omp_namelist *n;
7062 :
7063 146 : n = gfc_get_omp_namelist ();
7064 146 : n->sym = sym;
7065 146 : n->where = sym->declared_at;
7066 146 : n->u.map.op = map_op;
7067 :
7068 146 : if (!module_oacc_clauses)
7069 124 : module_oacc_clauses = gfc_get_omp_clauses ();
7070 :
7071 146 : if (module_oacc_clauses->lists[OMP_LIST_MAP])
7072 22 : n->next = module_oacc_clauses->lists[OMP_LIST_MAP];
7073 :
7074 146 : module_oacc_clauses->lists[OMP_LIST_MAP] = n;
7075 146 : }
7076 :
7077 :
7078 : static void
7079 1080387 : find_module_oacc_declare_clauses (gfc_symbol *sym)
7080 : {
7081 1080387 : if (sym->attr.use_assoc)
7082 : {
7083 507655 : gfc_omp_map_op map_op;
7084 :
7085 507655 : if (sym->attr.oacc_declare_create)
7086 507655 : map_op = OMP_MAP_FORCE_ALLOC;
7087 :
7088 507655 : if (sym->attr.oacc_declare_copyin)
7089 2 : map_op = OMP_MAP_FORCE_TO;
7090 :
7091 507655 : if (sym->attr.oacc_declare_deviceptr)
7092 0 : map_op = OMP_MAP_FORCE_DEVICEPTR;
7093 :
7094 507655 : if (sym->attr.oacc_declare_device_resident)
7095 34 : map_op = OMP_MAP_DEVICE_RESIDENT;
7096 :
7097 507655 : if (sym->attr.oacc_declare_create
7098 507545 : || sym->attr.oacc_declare_copyin
7099 507543 : || sym->attr.oacc_declare_deviceptr
7100 507543 : || sym->attr.oacc_declare_device_resident)
7101 : {
7102 146 : sym->attr.referenced = 1;
7103 146 : add_clause (sym, map_op);
7104 : }
7105 : }
7106 1080387 : }
7107 :
7108 :
7109 : void
7110 97937 : finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block)
7111 : {
7112 97937 : gfc_code *code;
7113 97937 : gfc_oacc_declare *oc;
7114 97937 : locus where;
7115 97937 : gfc_omp_clauses *omp_clauses = NULL;
7116 97937 : gfc_omp_namelist *n, *p;
7117 97937 : module_oacc_clauses = NULL;
7118 :
7119 97937 : gfc_locus_from_location (&where, input_location);
7120 97937 : gfc_traverse_ns (ns, find_module_oacc_declare_clauses);
7121 :
7122 97937 : if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM)
7123 : {
7124 45 : gfc_oacc_declare *new_oc;
7125 :
7126 45 : new_oc = gfc_get_oacc_declare ();
7127 45 : new_oc->next = ns->oacc_declare;
7128 45 : new_oc->clauses = module_oacc_clauses;
7129 :
7130 45 : ns->oacc_declare = new_oc;
7131 : }
7132 :
7133 97937 : if (!ns->oacc_declare)
7134 : return;
7135 :
7136 190 : for (oc = ns->oacc_declare; oc; oc = oc->next)
7137 : {
7138 101 : if (oc->module_var)
7139 0 : continue;
7140 :
7141 101 : if (block)
7142 2 : gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed "
7143 : "in BLOCK construct", &oc->loc);
7144 :
7145 :
7146 101 : if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP])
7147 : {
7148 88 : if (omp_clauses == NULL)
7149 : {
7150 76 : omp_clauses = oc->clauses;
7151 76 : continue;
7152 : }
7153 :
7154 48 : for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next)
7155 : ;
7156 :
7157 12 : gcc_assert (p->next == NULL);
7158 :
7159 12 : p->next = omp_clauses->lists[OMP_LIST_MAP];
7160 12 : omp_clauses = oc->clauses;
7161 : }
7162 : }
7163 :
7164 89 : if (!omp_clauses)
7165 : return;
7166 :
7167 212 : for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next)
7168 : {
7169 136 : switch (n->u.map.op)
7170 : {
7171 27 : case OMP_MAP_DEVICE_RESIDENT:
7172 27 : n->u.map.op = OMP_MAP_FORCE_ALLOC;
7173 27 : break;
7174 :
7175 : default:
7176 : break;
7177 : }
7178 : }
7179 :
7180 76 : code = XCNEW (gfc_code);
7181 76 : code->op = EXEC_OACC_DECLARE;
7182 76 : code->loc = where;
7183 :
7184 76 : code->ext.oacc_declare = gfc_get_oacc_declare ();
7185 76 : code->ext.oacc_declare->clauses = omp_clauses;
7186 :
7187 76 : code->block = XCNEW (gfc_code);
7188 76 : code->block->op = EXEC_OACC_DECLARE;
7189 76 : code->block->loc = where;
7190 :
7191 76 : if (ns->code)
7192 73 : code->block->next = ns->code;
7193 :
7194 76 : ns->code = code;
7195 :
7196 76 : return;
7197 : }
7198 :
7199 : static void
7200 1819 : gfc_conv_cfi_to_gfc (stmtblock_t *init, stmtblock_t *finally,
7201 : tree cfi_desc, tree gfc_desc, gfc_symbol *sym)
7202 : {
7203 1819 : stmtblock_t block;
7204 1819 : gfc_init_block (&block);
7205 1819 : tree cfi = build_fold_indirect_ref_loc (input_location, cfi_desc);
7206 1819 : tree idx, etype, tmp, tmp2, size_var = NULL_TREE, rank = NULL_TREE;
7207 1819 : bool do_copy_inout = false;
7208 :
7209 : /* When allocatable + intent out, free the cfi descriptor. */
7210 1819 : if (sym->attr.allocatable && sym->attr.intent == INTENT_OUT)
7211 : {
7212 54 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7213 54 : tree call = builtin_decl_explicit (BUILT_IN_FREE);
7214 54 : call = build_call_expr_loc (input_location, call, 1, tmp);
7215 54 : gfc_add_expr_to_block (&block, fold_convert (void_type_node, call));
7216 54 : gfc_add_modify (&block, tmp,
7217 54 : fold_convert (TREE_TYPE (tmp), null_pointer_node));
7218 : }
7219 :
7220 : /* -fcheck=bound: Do version, rank, attribute, type and is-NULL checks. */
7221 1819 : if (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
7222 : {
7223 654 : char *msg;
7224 654 : tree tmp3;
7225 654 : msg = xasprintf ("Unexpected version %%d (expected %d) in CFI descriptor "
7226 : "passed to dummy argument %s", CFI_VERSION, sym->name);
7227 654 : tmp2 = gfc_get_cfi_desc_version (cfi);
7228 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node, tmp2,
7229 654 : build_int_cst (TREE_TYPE (tmp2), CFI_VERSION));
7230 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7231 : msg, tmp2);
7232 654 : free (msg);
7233 :
7234 : /* Rank check; however, for character(len=*), assumed/explicit-size arrays
7235 : are permitted to differ in rank according to the Fortran rules. */
7236 654 : if (sym->as && sym->as->type != AS_ASSUMED_SIZE
7237 546 : && sym->as->type != AS_EXPLICIT)
7238 : {
7239 438 : if (sym->as->rank != -1)
7240 222 : msg = xasprintf ("Invalid rank %%d (expected %d) in CFI descriptor "
7241 : "passed to dummy argument %s", sym->as->rank,
7242 : sym->name);
7243 : else
7244 216 : msg = xasprintf ("Invalid rank %%d (expected 0..%d) in CFI "
7245 : "descriptor passed to dummy argument %s",
7246 : CFI_MAX_RANK, sym->name);
7247 :
7248 438 : tmp3 = tmp2 = tmp = gfc_get_cfi_desc_rank (cfi);
7249 438 : if (sym->as->rank != -1)
7250 222 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7251 : tmp, build_int_cst (signed_char_type_node,
7252 222 : sym->as->rank));
7253 : else
7254 : {
7255 216 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node,
7256 216 : tmp, build_zero_cst (TREE_TYPE (tmp)));
7257 216 : tmp2 = fold_build2_loc (input_location, GT_EXPR,
7258 : boolean_type_node, tmp2,
7259 216 : build_int_cst (TREE_TYPE (tmp2),
7260 : CFI_MAX_RANK));
7261 216 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7262 : boolean_type_node, tmp, tmp2);
7263 : }
7264 438 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7265 : msg, tmp3);
7266 438 : free (msg);
7267 : }
7268 :
7269 654 : tmp3 = tmp = gfc_get_cfi_desc_attribute (cfi);
7270 654 : if (sym->attr.allocatable || sym->attr.pointer)
7271 : {
7272 6 : int attr = (sym->attr.pointer ? CFI_attribute_pointer
7273 : : CFI_attribute_allocatable);
7274 12 : msg = xasprintf ("Invalid attribute %%d (expected %d) in CFI "
7275 : "descriptor passed to dummy argument %s with %s "
7276 : "attribute", attr, sym->name,
7277 : sym->attr.pointer ? "pointer" : "allocatable");
7278 6 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7279 6 : tmp, build_int_cst (TREE_TYPE (tmp), attr));
7280 6 : }
7281 : else
7282 : {
7283 648 : int amin = MIN (CFI_attribute_pointer,
7284 : MIN (CFI_attribute_allocatable, CFI_attribute_other));
7285 648 : int amax = MAX (CFI_attribute_pointer,
7286 : MAX (CFI_attribute_allocatable, CFI_attribute_other));
7287 648 : msg = xasprintf ("Invalid attribute %%d (expected %d..%d) in CFI "
7288 : "descriptor passed to nonallocatable, nonpointer "
7289 : "dummy argument %s", amin, amax, sym->name);
7290 648 : tmp2 = tmp;
7291 648 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node, tmp,
7292 648 : build_int_cst (TREE_TYPE (tmp), amin));
7293 648 : tmp2 = fold_build2_loc (input_location, GT_EXPR, boolean_type_node, tmp2,
7294 648 : build_int_cst (TREE_TYPE (tmp2), amax));
7295 648 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7296 : boolean_type_node, tmp, tmp2);
7297 648 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7298 : msg, tmp3);
7299 648 : free (msg);
7300 648 : msg = xasprintf ("Invalid unallocatated/unassociated CFI "
7301 : "descriptor passed to nonallocatable, nonpointer "
7302 : "dummy argument %s", sym->name);
7303 648 : tmp3 = tmp = gfc_get_cfi_desc_base_addr (cfi),
7304 648 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7305 : tmp, null_pointer_node);
7306 : }
7307 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7308 : msg, tmp3);
7309 654 : free (msg);
7310 :
7311 654 : if (sym->ts.type != BT_ASSUMED)
7312 : {
7313 654 : int type = CFI_type_other;
7314 654 : if (sym->ts.f90_type == BT_VOID)
7315 : {
7316 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7317 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7318 : }
7319 : else
7320 654 : switch (sym->ts.type)
7321 : {
7322 6 : case BT_INTEGER:
7323 6 : case BT_LOGICAL:
7324 6 : case BT_REAL:
7325 6 : case BT_COMPLEX:
7326 6 : type = CFI_type_from_type_kind (sym->ts.type, sym->ts.kind);
7327 6 : break;
7328 648 : case BT_CHARACTER:
7329 648 : type = CFI_type_from_type_kind (CFI_type_Character,
7330 : sym->ts.kind);
7331 648 : break;
7332 0 : case BT_DERIVED:
7333 0 : type = CFI_type_struct;
7334 0 : break;
7335 0 : case BT_VOID:
7336 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7337 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7338 : break;
7339 :
7340 0 : case BT_UNSIGNED:
7341 0 : gfc_internal_error ("Unsigned not yet implemented");
7342 :
7343 0 : case BT_ASSUMED:
7344 0 : case BT_CLASS:
7345 0 : case BT_PROCEDURE:
7346 0 : case BT_HOLLERITH:
7347 0 : case BT_UNION:
7348 0 : case BT_BOZ:
7349 0 : case BT_UNKNOWN:
7350 0 : gcc_unreachable ();
7351 : }
7352 654 : msg = xasprintf ("Unexpected type %%d (expected %d) in CFI descriptor"
7353 : " passed to dummy argument %s", type, sym->name);
7354 654 : tmp2 = tmp = gfc_get_cfi_desc_type (cfi);
7355 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7356 654 : tmp, build_int_cst (TREE_TYPE (tmp), type));
7357 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7358 : msg, tmp2);
7359 654 : free (msg);
7360 : }
7361 : }
7362 :
7363 1819 : if (!sym->attr.referenced)
7364 72 : goto done;
7365 :
7366 : /* Set string length for len=* and len=:, otherwise, it is already set. */
7367 1747 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
7368 : {
7369 647 : tmp = fold_convert (gfc_array_index_type,
7370 : gfc_get_cfi_desc_elem_len (cfi));
7371 647 : if (sym->ts.kind != 1)
7372 197 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7373 : gfc_array_index_type, tmp,
7374 : build_int_cst (gfc_charlen_type_node,
7375 197 : sym->ts.kind));
7376 647 : gfc_add_modify (&block, sym->ts.u.cl->backend_decl, tmp);
7377 : }
7378 :
7379 1747 : if (sym->ts.type == BT_CHARACTER
7380 1020 : && !INTEGER_CST_P (sym->ts.u.cl->backend_decl))
7381 : {
7382 804 : gfc_conv_string_length (sym->ts.u.cl, NULL, &block);
7383 804 : gfc_trans_vla_type_sizes (sym, &block);
7384 : }
7385 :
7386 : /* gfc->data = cfi->base_addr - or for scalars: gfc = cfi->base_addr.
7387 : assumed-size/explicit-size arrays end up here for character(len=*)
7388 : only. */
7389 1747 : if (!sym->attr.dimension || !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7390 : {
7391 418 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7392 418 : gfc_add_modify (&block, gfc_desc,
7393 418 : fold_convert (TREE_TYPE (gfc_desc), tmp));
7394 418 : if (!sym->attr.dimension)
7395 164 : goto done;
7396 : }
7397 :
7398 1583 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7399 : {
7400 : /* gfc->dtype = ... (from declaration, not from cfi). */
7401 1329 : etype = gfc_get_element_type (TREE_TYPE (gfc_desc));
7402 1329 : gfc_add_modify (&block, gfc_conv_descriptor_dtype (gfc_desc),
7403 1329 : gfc_get_dtype_rank_type (sym->as->rank, etype));
7404 : /* gfc->data = cfi->base_addr. */
7405 1329 : gfc_conv_descriptor_data_set (&block, gfc_desc,
7406 : gfc_get_cfi_desc_base_addr (cfi));
7407 : }
7408 :
7409 1583 : if (sym->ts.type == BT_ASSUMED)
7410 : {
7411 : /* For type(*), take elem_len + dtype.type from the actual argument. */
7412 19 : gfc_add_modify (&block, gfc_conv_descriptor_elem_len (gfc_desc),
7413 : gfc_get_cfi_desc_elem_len (cfi));
7414 19 : tree cond;
7415 19 : tree ctype = gfc_get_cfi_desc_type (cfi);
7416 19 : ctype = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (ctype),
7417 19 : ctype, build_int_cst (TREE_TYPE (ctype),
7418 : CFI_type_mask));
7419 19 : tree type = gfc_conv_descriptor_type (gfc_desc);
7420 :
7421 : /* if (CFI_type_cptr) BT_VOID else BT_UNKNOWN */
7422 : /* Note: BT_VOID is could also be CFI_type_funcptr, but assume c_ptr. */
7423 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7424 19 : build_int_cst (TREE_TYPE (ctype), CFI_type_cptr));
7425 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7426 19 : build_int_cst (TREE_TYPE (type), BT_VOID));
7427 19 : tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7428 : type,
7429 19 : build_int_cst (TREE_TYPE (type), BT_UNKNOWN));
7430 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7431 : tmp, tmp2);
7432 : /* if (CFI_type_struct) BT_DERIVED else < tmp2 > */
7433 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7434 19 : build_int_cst (TREE_TYPE (ctype),
7435 : CFI_type_struct));
7436 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7437 19 : build_int_cst (TREE_TYPE (type), BT_DERIVED));
7438 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7439 : tmp, tmp2);
7440 : /* if (CFI_type_Character) BT_CHARACTER else < tmp2 > */
7441 : /* Note: this is kind=1, CFI_type_ucs4_char is handled in the 'else if'
7442 : before (see below, as generated bottom up). */
7443 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7444 19 : build_int_cst (TREE_TYPE (ctype),
7445 : CFI_type_Character));
7446 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7447 19 : build_int_cst (TREE_TYPE (type), BT_CHARACTER));
7448 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7449 : tmp, tmp2);
7450 : /* if (CFI_type_ucs4_char) BT_CHARACTER else < tmp2 > */
7451 : /* Note: gfc->elem_len = cfi->elem_len/4. */
7452 : /* However, assuming that CFI_type_ucs4_char cannot be recovered, leave
7453 : gfc->elem_len == cfi->elem_len, which helps with operations which use
7454 : sizeof() in Fortran and cfi->elem_len in C. */
7455 19 : tmp = gfc_get_cfi_desc_type (cfi);
7456 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, tmp,
7457 19 : build_int_cst (TREE_TYPE (tmp),
7458 : CFI_type_ucs4_char));
7459 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7460 19 : build_int_cst (TREE_TYPE (type), BT_CHARACTER));
7461 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7462 : tmp, tmp2);
7463 : /* if (CFI_type_Complex) BT_COMPLEX + cfi->elem_len/2 else < tmp2 > */
7464 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7465 19 : build_int_cst (TREE_TYPE (ctype),
7466 : CFI_type_Complex));
7467 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7468 19 : build_int_cst (TREE_TYPE (type), BT_COMPLEX));
7469 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7470 : tmp, tmp2);
7471 : /* if (CFI_type_Integer || CFI_type_Logical || CFI_type_Real)
7472 : ctype else <tmp2> */
7473 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7474 19 : build_int_cst (TREE_TYPE (ctype),
7475 : CFI_type_Integer));
7476 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7477 19 : build_int_cst (TREE_TYPE (ctype),
7478 : CFI_type_Logical));
7479 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7480 : cond, tmp);
7481 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7482 19 : build_int_cst (TREE_TYPE (ctype),
7483 : CFI_type_Real));
7484 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7485 : cond, tmp);
7486 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7487 19 : type, fold_convert (TREE_TYPE (type), ctype));
7488 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7489 : tmp, tmp2);
7490 19 : gfc_add_expr_to_block (&block, tmp2);
7491 : }
7492 :
7493 1583 : if (sym->as->rank < 0)
7494 : {
7495 : /* Set gfc->dtype.rank, if assumed-rank. */
7496 587 : rank = gfc_get_cfi_desc_rank (cfi);
7497 587 : gfc_add_modify (&block, gfc_conv_descriptor_rank (gfc_desc), rank);
7498 : }
7499 996 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7500 : /* In that case, the CFI rank and the declared rank can differ. */
7501 254 : rank = gfc_get_cfi_desc_rank (cfi);
7502 : else
7503 742 : rank = build_int_cst (signed_char_type_node, sym->as->rank);
7504 :
7505 : /* With bind(C), the standard requires that both Fortran callers and callees
7506 : handle noncontiguous arrays passed to an dummy with 'contiguous' attribute
7507 : and with character(len=*) + assumed-size/explicit-size arrays.
7508 : cf. Fortran 2018, 18.3.6, paragraph 5 (and for the caller: para. 6). */
7509 1583 : if ((sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length
7510 550 : && (sym->as->type == AS_ASSUMED_SIZE || sym->as->type == AS_EXPLICIT))
7511 1329 : || sym->attr.contiguous)
7512 : {
7513 517 : do_copy_inout = true;
7514 517 : gcc_assert (!sym->attr.pointer);
7515 517 : stmtblock_t block2;
7516 517 : tree data;
7517 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7518 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7519 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7520 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7521 : else
7522 : data = gfc_desc;
7523 :
7524 : /* Is copy-in/out needed? */
7525 : /* do_copyin = rank != 0 && !assumed-size */
7526 517 : tree cond_var = gfc_create_var (boolean_type_node, "do_copyin");
7527 517 : tree cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7528 517 : rank, build_zero_cst (TREE_TYPE (rank)));
7529 : /* dim[rank-1].extent != -1 -> assumed size*/
7530 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (rank),
7531 517 : rank, build_int_cst (TREE_TYPE (rank), 1));
7532 517 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7533 : gfc_get_cfi_dim_extent (cfi, tmp),
7534 : build_int_cst (gfc_array_index_type, -1));
7535 517 : cond = fold_build2_loc (input_location, TRUTH_ANDIF_EXPR,
7536 : boolean_type_node, cond, tmp);
7537 517 : gfc_add_modify (&block, cond_var, cond);
7538 : /* if (do_copyin) do_copyin = ... || ... || ... */
7539 517 : gfc_init_block (&block2);
7540 : /* dim[0].sm != elem_len */
7541 517 : tmp = fold_convert (gfc_array_index_type,
7542 : gfc_get_cfi_desc_elem_len (cfi));
7543 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7544 : gfc_get_cfi_dim_sm (cfi, gfc_index_zero_node),
7545 : tmp);
7546 517 : gfc_add_modify (&block2, cond_var, cond);
7547 :
7548 : /* for (i = 1; i < rank; ++i)
7549 : cond &&= dim[i].sm != (dv->dim[i - 1].sm * dv->dim[i - 1].extent) */
7550 517 : idx = gfc_create_var (TREE_TYPE (rank), "idx");
7551 517 : stmtblock_t loop_body;
7552 517 : gfc_init_block (&loop_body);
7553 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7554 517 : idx, build_int_cst (TREE_TYPE (idx), 1));
7555 517 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, tmp);
7556 517 : tmp = gfc_get_cfi_dim_extent (cfi, tmp);
7557 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp),
7558 : tmp2, tmp);
7559 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7560 : gfc_get_cfi_dim_sm (cfi, idx), tmp);
7561 517 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7562 : cond_var, cond);
7563 517 : gfc_add_modify (&loop_body, cond_var, cond);
7564 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7565 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7566 : gfc_finish_block (&loop_body));
7567 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7568 : build_empty_stmt (input_location));
7569 517 : gfc_add_expr_to_block (&block, tmp);
7570 :
7571 : /* Copy-in body. */
7572 517 : gfc_init_block (&block2);
7573 : /* size = dim[0].extent; for (i = 1; i < rank; ++i) size *= dim[i].extent */
7574 517 : size_var = gfc_create_var (size_type_node, "size");
7575 517 : tmp = fold_convert (size_type_node,
7576 : gfc_get_cfi_dim_extent (cfi, gfc_index_zero_node));
7577 517 : gfc_add_modify (&block2, size_var, tmp);
7578 :
7579 517 : gfc_init_block (&loop_body);
7580 517 : tmp = fold_convert (size_type_node,
7581 : gfc_get_cfi_dim_extent (cfi, idx));
7582 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7583 : size_var, fold_convert (size_type_node, tmp));
7584 517 : gfc_add_modify (&loop_body, size_var, tmp);
7585 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7586 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7587 : gfc_finish_block (&loop_body));
7588 : /* data = malloc (size * elem_len) */
7589 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7590 : size_var, gfc_get_cfi_desc_elem_len (cfi));
7591 517 : tree call = builtin_decl_explicit (BUILT_IN_MALLOC);
7592 517 : call = build_call_expr_loc (input_location, call, 1, tmp);
7593 517 : gfc_add_modify (&block2, data, fold_convert (TREE_TYPE (data), call));
7594 :
7595 : /* Copy the data:
7596 : for (idx = 0; idx < size; ++idx)
7597 : {
7598 : shift = 0;
7599 : tmpidx = idx
7600 : for (dim = 0; dim < rank; ++dim)
7601 : {
7602 : shift += (tmpidx % extent[d]) * sm[d]
7603 : tmpidx = tmpidx / extend[d]
7604 : }
7605 : memcpy (lhs + idx*elem_len, rhs + shift, elem_len)
7606 : } .*/
7607 517 : idx = gfc_create_var (size_type_node, "arrayidx");
7608 517 : gfc_init_block (&loop_body);
7609 517 : tree shift = gfc_create_var (size_type_node, "shift");
7610 517 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7611 517 : gfc_add_modify (&loop_body, shift, build_zero_cst (TREE_TYPE (shift)));
7612 517 : gfc_add_modify (&loop_body, tmpidx, idx);
7613 517 : stmtblock_t inner_loop;
7614 517 : gfc_init_block (&inner_loop);
7615 517 : tree dim = gfc_create_var (TREE_TYPE (rank), "dim");
7616 : /* shift += (tmpidx % extent[d]) * sm[d] */
7617 517 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7618 : size_type_node, tmpidx,
7619 : fold_convert (size_type_node,
7620 : gfc_get_cfi_dim_extent (cfi, dim)));
7621 517 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7622 : size_type_node, tmp,
7623 : fold_convert (size_type_node,
7624 : gfc_get_cfi_dim_sm (cfi, dim)));
7625 517 : gfc_add_modify (&inner_loop, shift,
7626 : fold_build2_loc (input_location, PLUS_EXPR,
7627 : size_type_node, shift, tmp));
7628 : /* tmpidx = tmpidx / extend[d] */
7629 517 : tmp = fold_convert (size_type_node, gfc_get_cfi_dim_extent (cfi, dim));
7630 517 : gfc_add_modify (&inner_loop, tmpidx,
7631 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7632 : size_type_node, tmpidx, tmp));
7633 1034 : gfc_simple_for_loop (&loop_body, dim, build_zero_cst (TREE_TYPE (rank)),
7634 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (dim), 1),
7635 : gfc_finish_block (&inner_loop));
7636 : /* Assign. */
7637 517 : tmp = fold_convert (pchar_type_node, gfc_get_cfi_desc_base_addr (cfi));
7638 517 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
7639 517 : tree lhs;
7640 : /* memcpy (lhs + idx*elem_len, rhs + shift, elem_len) */
7641 517 : tree elem_len;
7642 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7643 263 : elem_len = gfc_conv_descriptor_elem_len (gfc_desc);
7644 : else
7645 254 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
7646 517 : lhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7647 : elem_len, idx);
7648 517 : lhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR, pchar_type_node,
7649 : fold_convert (pchar_type_node, data), lhs);
7650 517 : tmp = fold_convert (pvoid_type_node, tmp);
7651 517 : lhs = fold_convert (pvoid_type_node, lhs);
7652 517 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
7653 517 : call = build_call_expr_loc (input_location, call, 3, lhs, tmp, elem_len);
7654 517 : gfc_add_expr_to_block (&loop_body, fold_convert (void_type_node, call));
7655 1034 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7656 517 : size_var, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7657 : gfc_finish_block (&loop_body));
7658 : /* if (cond) { block2 } */
7659 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7660 : build_empty_stmt (input_location));
7661 517 : gfc_add_expr_to_block (&block, tmp);
7662 : }
7663 :
7664 1583 : if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7665 : {
7666 254 : tree offset, type;
7667 254 : type = TREE_TYPE (gfc_desc);
7668 254 : gfc_trans_array_bounds (type, sym, &offset, &block);
7669 254 : if (VAR_P (GFC_TYPE_ARRAY_OFFSET (type)))
7670 144 : gfc_add_modify (&block, GFC_TYPE_ARRAY_OFFSET (type), offset);
7671 254 : goto done;
7672 : }
7673 :
7674 : /* If cfi->data != NULL. */
7675 1329 : stmtblock_t block2;
7676 1329 : gfc_init_block (&block2);
7677 :
7678 : /* if do_copy_inout: gfc->dspan = gfc->dtype.elem_len
7679 : We use gfc instead of cfi on the RHS as this might be a constant. */
7680 1329 : tmp = fold_convert (gfc_array_index_type,
7681 : gfc_conv_descriptor_elem_len (gfc_desc));
7682 1329 : if (!do_copy_inout)
7683 : {
7684 : /* gfc->dspan = ((cfi->dim[0].sm % gfc->elem_len)
7685 : ? cfi->dim[0].sm : gfc->elem_len). */
7686 1066 : tree cond;
7687 1066 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, gfc_rank_cst[0]);
7688 1066 : cond = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7689 : gfc_array_index_type, tmp2, tmp);
7690 1066 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7691 : cond, gfc_index_zero_node);
7692 1066 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7693 : tmp2, tmp);
7694 : }
7695 1329 : gfc_conv_descriptor_span_set (&block2, gfc_desc, tmp);
7696 :
7697 : /* Calculate offset + set lbound, ubound and stride. */
7698 1329 : gfc_conv_descriptor_offset_set (&block2, gfc_desc, gfc_index_zero_node);
7699 1329 : if (sym->as->rank > 0 && !sym->attr.pointer && !sym->attr.allocatable)
7700 1274 : for (int i = 0; i < sym->as->rank; ++i)
7701 : {
7702 718 : gfc_se se;
7703 718 : gfc_init_se (&se, NULL );
7704 718 : if (sym->as->lower[i])
7705 : {
7706 718 : gfc_conv_expr (&se, sym->as->lower[i]);
7707 718 : tmp = se.expr;
7708 : }
7709 : else
7710 0 : tmp = gfc_index_one_node;
7711 718 : gfc_add_block_to_block (&block2, &se.pre);
7712 718 : gfc_conv_descriptor_lbound_set (&block2, gfc_desc, gfc_rank_cst[i],
7713 : tmp);
7714 718 : gfc_add_block_to_block (&block2, &se.post);
7715 : }
7716 :
7717 : /* Loop: for (i = 0; i < rank; ++i). */
7718 1329 : idx = gfc_create_var (TREE_TYPE (rank), "idx");
7719 :
7720 : /* Loop body. */
7721 1329 : stmtblock_t loop_body;
7722 1329 : gfc_init_block (&loop_body);
7723 : /* gfc->dim[i].lbound = ... */
7724 1329 : if (sym->attr.pointer || sym->attr.allocatable)
7725 : {
7726 276 : tmp = gfc_get_cfi_dim_lbound (cfi, idx);
7727 276 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx, tmp);
7728 : }
7729 1053 : else if (sym->as->rank < 0)
7730 497 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx,
7731 : gfc_index_one_node);
7732 :
7733 : /* gfc->dim[i].ubound = gfc->dim[i].lbound + cfi->dim[i].extent - 1. */
7734 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7735 : gfc_conv_descriptor_lbound_get (gfc_desc, idx),
7736 : gfc_index_one_node);
7737 1329 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type,
7738 : gfc_get_cfi_dim_extent (cfi, idx), tmp);
7739 1329 : gfc_conv_descriptor_ubound_set (&loop_body, gfc_desc, idx, tmp);
7740 :
7741 1329 : if (do_copy_inout)
7742 : {
7743 : /* gfc->dim[i].stride
7744 : = idx == 0 ? 1 : gfc->dim[i-1].stride * cfi->dim[i-1].extent */
7745 263 : tree cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7746 263 : idx, build_zero_cst (TREE_TYPE (idx)));
7747 263 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7748 263 : idx, build_int_cst (TREE_TYPE (idx), 1));
7749 263 : tree tmp2 = gfc_get_cfi_dim_extent (cfi, tmp);
7750 263 : tmp = gfc_conv_descriptor_stride_get (gfc_desc, tmp);
7751 263 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp2),
7752 : tmp2, tmp);
7753 263 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7754 : gfc_index_one_node, tmp);
7755 : }
7756 : else
7757 : {
7758 : /* gfc->dim[i].stride = cfi->dim[i].sm / cfi>elem_len */
7759 1066 : tmp = gfc_get_cfi_dim_sm (cfi, idx);
7760 1066 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7761 : gfc_array_index_type, tmp,
7762 : fold_convert (gfc_array_index_type,
7763 : gfc_get_cfi_desc_elem_len (cfi)));
7764 : }
7765 1329 : gfc_conv_descriptor_stride_set (&loop_body, gfc_desc, idx, tmp);
7766 : /* gfc->offset -= gfc->dim[i].stride * gfc->dim[i].lbound. */
7767 1329 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
7768 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
7769 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
7770 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7771 : gfc_conv_descriptor_offset_get (gfc_desc), tmp);
7772 1329 : gfc_conv_descriptor_offset_set (&loop_body, gfc_desc, tmp);
7773 :
7774 : /* Generate loop. */
7775 2658 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7776 1329 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7777 : gfc_finish_block (&loop_body));
7778 1329 : if (sym->attr.allocatable || sym->attr.pointer)
7779 : {
7780 276 : tmp = gfc_get_cfi_desc_base_addr (cfi),
7781 276 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7782 : tmp, null_pointer_node);
7783 276 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
7784 : build_empty_stmt (input_location));
7785 276 : gfc_add_expr_to_block (&block, tmp);
7786 : }
7787 : else
7788 1053 : gfc_add_block_to_block (&block, &block2);
7789 :
7790 1819 : done:
7791 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
7792 1819 : if (sym->attr.optional)
7793 : {
7794 317 : tree present = fold_build2_loc (input_location, NE_EXPR,
7795 : boolean_type_node, cfi_desc,
7796 : null_pointer_node);
7797 317 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7798 : sym->backend_decl,
7799 317 : fold_convert (TREE_TYPE (sym->backend_decl),
7800 : null_pointer_node));
7801 317 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block), tmp);
7802 317 : gfc_add_expr_to_block (init, tmp);
7803 : }
7804 : else
7805 1502 : gfc_add_block_to_block (init, &block);
7806 :
7807 1819 : if (!sym->attr.referenced)
7808 984 : return;
7809 :
7810 : /* If pointer not changed, nothing to be done (except copy out) */
7811 1747 : if (!do_copy_inout && ((!sym->attr.pointer && !sym->attr.allocatable)
7812 381 : || sym->attr.intent == INTENT_IN))
7813 : return;
7814 :
7815 835 : gfc_init_block (&block);
7816 :
7817 : /* For bind(C), Fortran does not permit mixing 'pointer' with 'contiguous' (or
7818 : len=*). Thus, when copy out is needed, the bounds ofthe descriptor remain
7819 : unchanged. */
7820 835 : if (do_copy_inout)
7821 : {
7822 517 : tree data, call;
7823 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7824 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7825 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7826 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7827 : else
7828 : data = gfc_desc;
7829 517 : gfc_init_block (&block2);
7830 517 : if (sym->attr.intent != INTENT_IN)
7831 : {
7832 : /* First, create the inner copy-out loop.
7833 : for (idx = 0; idx < size; ++idx)
7834 : {
7835 : shift = 0;
7836 : tmpidx = idx
7837 : for (dim = 0; dim < rank; ++dim)
7838 : {
7839 : shift += (tmpidx % extent[d]) * sm[d]
7840 : tmpidx = tmpidx / extend[d]
7841 : }
7842 : memcpy (lhs + shift, rhs + idx*elem_len, elem_len)
7843 : } .*/
7844 292 : stmtblock_t loop_body;
7845 292 : idx = gfc_create_var (size_type_node, "arrayidx");
7846 292 : gfc_init_block (&loop_body);
7847 292 : tree shift = gfc_create_var (size_type_node, "shift");
7848 292 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7849 292 : gfc_add_modify (&loop_body, shift,
7850 292 : build_zero_cst (TREE_TYPE (shift)));
7851 292 : gfc_add_modify (&loop_body, tmpidx, idx);
7852 292 : stmtblock_t inner_loop;
7853 292 : gfc_init_block (&inner_loop);
7854 292 : tree dim = gfc_create_var (TREE_TYPE (rank), "dim");
7855 : /* shift += (tmpidx % extent[d]) * sm[d] */
7856 292 : tmp = fold_convert (size_type_node,
7857 : gfc_get_cfi_dim_extent (cfi, dim));
7858 292 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7859 : size_type_node, tmpidx, tmp);
7860 292 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7861 : size_type_node, tmp,
7862 : fold_convert (size_type_node,
7863 : gfc_get_cfi_dim_sm (cfi, dim)));
7864 292 : gfc_add_modify (&inner_loop, shift,
7865 : fold_build2_loc (input_location, PLUS_EXPR,
7866 : size_type_node, shift, tmp));
7867 : /* tmpidx = tmpidx / extend[d] */
7868 292 : tmp = fold_convert (size_type_node,
7869 : gfc_get_cfi_dim_extent (cfi, dim));
7870 292 : gfc_add_modify (&inner_loop, tmpidx,
7871 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7872 : size_type_node, tmpidx, tmp));
7873 876 : gfc_simple_for_loop (&loop_body, dim,
7874 292 : build_zero_cst (TREE_TYPE (rank)), rank, LT_EXPR,
7875 292 : build_int_cst (TREE_TYPE (dim), 1),
7876 : gfc_finish_block (&inner_loop));
7877 : /* Assign. */
7878 292 : tree rhs;
7879 292 : tmp = fold_convert (pchar_type_node,
7880 : gfc_get_cfi_desc_base_addr (cfi));
7881 292 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
7882 : /* memcpy (lhs + shift, rhs + idx*elem_len, elem_len) */
7883 292 : tree elem_len;
7884 292 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7885 153 : elem_len = gfc_conv_descriptor_elem_len (gfc_desc);
7886 : else
7887 139 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
7888 292 : rhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7889 : elem_len, idx);
7890 292 : rhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR,
7891 : pchar_type_node,
7892 : fold_convert (pchar_type_node, data), rhs);
7893 292 : tmp = fold_convert (pvoid_type_node, tmp);
7894 292 : rhs = fold_convert (pvoid_type_node, rhs);
7895 292 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
7896 292 : call = build_call_expr_loc (input_location, call, 3, tmp, rhs,
7897 : elem_len);
7898 292 : gfc_add_expr_to_block (&loop_body,
7899 : fold_convert (void_type_node, call));
7900 584 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7901 : size_var, LT_EXPR,
7902 292 : build_int_cst (TREE_TYPE (idx), 1),
7903 : gfc_finish_block (&loop_body));
7904 : }
7905 517 : call = builtin_decl_explicit (BUILT_IN_FREE);
7906 517 : call = build_call_expr_loc (input_location, call, 1, data);
7907 517 : gfc_add_expr_to_block (&block2, call);
7908 :
7909 : /* if (cfi->base_addr != gfc->data) { copy out; free(var) }; return */
7910 517 : tree tmp2 = gfc_get_cfi_desc_base_addr (cfi);
7911 517 : tmp2 = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7912 517 : tmp2, fold_convert (TREE_TYPE (tmp2), data));
7913 517 : tmp = build3_v (COND_EXPR, tmp2, gfc_finish_block (&block2),
7914 : build_empty_stmt (input_location));
7915 517 : gfc_add_expr_to_block (&block, tmp);
7916 517 : goto done_finally;
7917 : }
7918 :
7919 : /* Update pointer + array data data on exit. */
7920 318 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7921 318 : tmp2 = (!sym->attr.dimension
7922 318 : ? gfc_desc : gfc_conv_descriptor_data_get (gfc_desc));
7923 318 : gfc_add_modify (&block, tmp, fold_convert (TREE_TYPE (tmp), tmp2));
7924 :
7925 : /* Set string length for len=:, only. */
7926 318 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
7927 : {
7928 60 : tmp2 = gfc_get_cfi_desc_elem_len (cfi);
7929 60 : tmp = fold_convert (TREE_TYPE (tmp2), sym->ts.u.cl->backend_decl);
7930 60 : if (sym->ts.kind != 1)
7931 48 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7932 24 : TREE_TYPE (tmp2), tmp,
7933 24 : build_int_cst (TREE_TYPE (tmp2), sym->ts.kind));
7934 60 : gfc_add_modify (&block, tmp2, tmp);
7935 : }
7936 :
7937 318 : if (!sym->attr.dimension)
7938 102 : goto done_finally;
7939 :
7940 216 : gfc_init_block (&block2);
7941 :
7942 : /* Loop: for (i = 0; i < rank; ++i). */
7943 216 : idx = gfc_create_var (TREE_TYPE (rank), "idx");
7944 :
7945 : /* Loop body. */
7946 216 : gfc_init_block (&loop_body);
7947 : /* cfi->dim[i].lower_bound = gfc->dim[i].lbound */
7948 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_lbound (cfi, idx),
7949 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
7950 : /* cfi->dim[i].extent = gfc->dim[i].ubound - gfc->dim[i].lbound + 1. */
7951 216 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7952 : gfc_conv_descriptor_ubound_get (gfc_desc, idx),
7953 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
7954 216 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type, tmp,
7955 : gfc_index_one_node);
7956 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_extent (cfi, idx), tmp);
7957 : /* d->dim[n].sm = gfc->dim[i].stride * gfc->span); */
7958 216 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
7959 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
7960 : gfc_conv_descriptor_span_get (gfc_desc));
7961 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_sm (cfi, idx), tmp);
7962 :
7963 : /* Generate loop. */
7964 432 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7965 216 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7966 : gfc_finish_block (&loop_body));
7967 : /* if (gfc->data != NULL) { block2 }. */
7968 216 : tmp = gfc_get_cfi_desc_base_addr (cfi),
7969 216 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7970 : tmp, null_pointer_node);
7971 216 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
7972 : build_empty_stmt (input_location));
7973 216 : gfc_add_expr_to_block (&block, tmp);
7974 :
7975 835 : done_finally:
7976 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
7977 835 : if (sym->attr.optional)
7978 : {
7979 180 : tree present = fold_build2_loc (input_location, NE_EXPR,
7980 : boolean_type_node, cfi_desc,
7981 : null_pointer_node);
7982 180 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block),
7983 : build_empty_stmt (input_location));
7984 180 : gfc_add_expr_to_block (finally, tmp);
7985 : }
7986 : else
7987 655 : gfc_add_block_to_block (finally, &block);
7988 : }
7989 :
7990 :
7991 : static void
7992 229 : emit_not_set_warning (gfc_symbol *sym)
7993 : {
7994 229 : if (warn_return_type > 0 && sym == sym->result)
7995 17 : gfc_warning (OPT_Wreturn_type,
7996 : "Return value of function %qs at %L not set",
7997 : sym->name, &sym->declared_at);
7998 229 : if (warn_return_type > 0)
7999 22 : suppress_warning (sym->backend_decl);
8000 229 : }
8001 :
8002 :
8003 : /* Generate code for a function. */
8004 :
8005 : void
8006 84089 : gfc_generate_function_code (gfc_namespace * ns)
8007 : {
8008 84089 : tree fndecl;
8009 84089 : tree old_context;
8010 84089 : tree decl;
8011 84089 : tree tmp;
8012 84089 : tree fpstate = NULL_TREE;
8013 84089 : stmtblock_t init, cleanup, outer_block;
8014 84089 : stmtblock_t body;
8015 84089 : gfc_wrapped_block try_block;
8016 84089 : tree recurcheckvar = NULL_TREE;
8017 84089 : gfc_symbol *sym;
8018 84089 : gfc_symbol *previous_procedure_symbol;
8019 84089 : int rank, ieee;
8020 84089 : bool is_recursive;
8021 :
8022 84089 : sym = ns->proc_name;
8023 84089 : previous_procedure_symbol = current_procedure_symbol;
8024 84089 : current_procedure_symbol = sym;
8025 :
8026 : /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get
8027 : lost or worse. */
8028 84089 : sym->tlink = sym;
8029 :
8030 : /* Create the declaration for functions with global scope. */
8031 84089 : if (!sym->backend_decl)
8032 35092 : gfc_create_function_decl (ns, false);
8033 :
8034 84089 : fndecl = sym->backend_decl;
8035 84089 : old_context = current_function_decl;
8036 :
8037 84089 : if (old_context)
8038 : {
8039 22873 : push_function_context ();
8040 22873 : saved_parent_function_decls = saved_function_decls;
8041 22873 : saved_function_decls = NULL_TREE;
8042 : }
8043 :
8044 84089 : trans_function_start (sym);
8045 84089 : gfc_current_locus = sym->declared_at;
8046 :
8047 84089 : gfc_init_block (&init);
8048 84089 : gfc_init_block (&cleanup);
8049 84089 : gfc_init_block (&outer_block);
8050 :
8051 84089 : if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER)
8052 : {
8053 : /* Copy length backend_decls to all entry point result
8054 : symbols. */
8055 50 : gfc_entry_list *el;
8056 50 : tree backend_decl;
8057 :
8058 50 : gfc_conv_const_charlen (ns->proc_name->ts.u.cl);
8059 50 : backend_decl = ns->proc_name->result->ts.u.cl->backend_decl;
8060 186 : for (el = ns->entries; el; el = el->next)
8061 136 : el->sym->result->ts.u.cl->backend_decl = backend_decl;
8062 : }
8063 :
8064 : /* Translate COMMON blocks. */
8065 84089 : gfc_trans_common (ns);
8066 :
8067 : /* Null the parent fake result declaration if this namespace is
8068 : a module function or an external procedures. */
8069 84089 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8070 58739 : || ns->parent == NULL)
8071 61216 : parent_fake_result_decl = NULL_TREE;
8072 :
8073 : /* For BIND(C):
8074 : - deallocate intent-out allocatable dummy arguments.
8075 : - Create GFC variable which will later be populated by convert_CFI_desc */
8076 84089 : if (sym->attr.is_bind_c)
8077 1892 : for (gfc_formal_arglist *formal = gfc_sym_get_dummy_args (sym);
8078 5903 : formal; formal = formal->next)
8079 : {
8080 4011 : gfc_symbol *fsym = formal->sym;
8081 4011 : if (!is_CFI_desc (fsym, NULL))
8082 2192 : continue;
8083 1819 : if (!fsym->attr.referenced)
8084 : {
8085 72 : gfc_conv_cfi_to_gfc (&init, &cleanup, fsym->backend_decl,
8086 : NULL_TREE, fsym);
8087 72 : continue;
8088 : }
8089 : /* Let's now create a local GFI descriptor. Afterwards:
8090 : desc is the local descriptor,
8091 : desc_p is a pointer to it
8092 : and stored in sym->backend_decl
8093 : GFC_DECL_SAVED_DESCRIPTOR (desc_p) contains the CFI descriptor
8094 : -> PARM_DECL and before sym->backend_decl.
8095 : For scalars, decl == decl_p is a pointer variable. */
8096 1747 : tree desc_p, desc;
8097 1747 : location_t loc = gfc_get_location (&sym->declared_at);
8098 1747 : if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->length)
8099 647 : fsym->ts.u.cl->backend_decl = gfc_create_var (gfc_array_index_type,
8100 : fsym->name);
8101 1100 : else if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->backend_decl)
8102 : {
8103 157 : gfc_se se;
8104 157 : gfc_init_se (&se, NULL );
8105 157 : gfc_conv_expr (&se, fsym->ts.u.cl->length);
8106 157 : gfc_add_block_to_block (&init, &se.pre);
8107 157 : fsym->ts.u.cl->backend_decl = se.expr;
8108 157 : gcc_assert(se.post.head == NULL_TREE);
8109 : }
8110 : /* Nullify, otherwise gfc_sym_type will return the CFI type. */
8111 1747 : tree tmp = fsym->backend_decl;
8112 1747 : fsym->backend_decl = NULL;
8113 1747 : tree type = gfc_sym_type (fsym);
8114 1747 : gcc_assert (POINTER_TYPE_P (type));
8115 1747 : if (POINTER_TYPE_P (TREE_TYPE (type)))
8116 : /* For instance, allocatable scalars. */
8117 105 : type = TREE_TYPE (type);
8118 1747 : if (TREE_CODE (type) == REFERENCE_TYPE)
8119 1179 : type = build_pointer_type (TREE_TYPE (type));
8120 1747 : desc_p = build_decl (loc, VAR_DECL, get_identifier (fsym->name), type);
8121 1747 : if (!fsym->attr.dimension)
8122 : desc = desc_p;
8123 1583 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (TREE_TYPE (desc_p))))
8124 : {
8125 : /* Character(len=*) explicit-size/assumed-size array. */
8126 254 : desc = desc_p;
8127 254 : gfc_build_qualified_array (desc, fsym);
8128 : }
8129 : else
8130 : {
8131 1329 : tree size = size_in_bytes (TREE_TYPE (TREE_TYPE (desc_p)));
8132 1329 : tree call = builtin_decl_explicit (BUILT_IN_ALLOCA);
8133 1329 : call = build_call_expr_loc (input_location, call, 1, size);
8134 1329 : gfc_add_modify (&outer_block, desc_p,
8135 1329 : fold_convert (TREE_TYPE(desc_p), call));
8136 1329 : desc = build_fold_indirect_ref_loc (input_location, desc_p);
8137 : }
8138 1747 : pushdecl (desc_p);
8139 1747 : if (fsym->attr.optional)
8140 : {
8141 311 : gfc_allocate_lang_decl (desc_p);
8142 311 : GFC_DECL_OPTIONAL_ARGUMENT (desc_p) = 1;
8143 : }
8144 1747 : fsym->backend_decl = desc_p;
8145 1747 : gfc_conv_cfi_to_gfc (&init, &cleanup, tmp, desc, fsym);
8146 : }
8147 :
8148 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
8149 : especially as some late diagnostic is only done on tree level. */
8150 84089 : if (flag_openmp)
8151 8633 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
8152 :
8153 84089 : gfc_generate_contained_functions (ns);
8154 :
8155 84089 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8156 84089 : generate_local_vars (ns);
8157 :
8158 84089 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8159 399 : generate_coarray_init (ns);
8160 :
8161 : /* Keep the parent fake result declaration in module functions
8162 : or external procedures. */
8163 84089 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8164 58739 : || ns->parent == NULL)
8165 61216 : current_fake_result_decl = parent_fake_result_decl;
8166 : else
8167 22873 : current_fake_result_decl = NULL_TREE;
8168 :
8169 168178 : is_recursive = sym->attr.recursive
8170 84089 : || (sym->attr.entry_master
8171 632 : && sym->ns->entries->sym->attr.recursive);
8172 84089 : if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION)
8173 1009 : && !is_recursive && !flag_recursive && !sym->attr.artificial)
8174 : {
8175 840 : char * msg;
8176 :
8177 840 : msg = xasprintf ("Recursive call to nonrecursive procedure '%s'",
8178 : sym->name);
8179 840 : recurcheckvar = gfc_create_var (logical_type_node, "is_recursive");
8180 840 : TREE_STATIC (recurcheckvar) = 1;
8181 840 : DECL_INITIAL (recurcheckvar) = logical_false_node;
8182 840 : gfc_add_expr_to_block (&init, recurcheckvar);
8183 840 : gfc_trans_runtime_check (true, false, recurcheckvar, &init,
8184 : &sym->declared_at, msg);
8185 840 : gfc_add_modify (&init, recurcheckvar, logical_true_node);
8186 840 : free (msg);
8187 : }
8188 :
8189 : /* Check if an IEEE module is used in the procedure. If so, save
8190 : the floating point state. */
8191 84089 : ieee = is_ieee_module_used (ns);
8192 84089 : if (ieee)
8193 443 : fpstate = gfc_save_fp_state (&init);
8194 :
8195 : /* Now generate the code for the body of this function. */
8196 84089 : gfc_init_block (&body);
8197 :
8198 84089 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8199 84089 : && sym->attr.subroutine)
8200 : {
8201 42 : tree alternate_return;
8202 42 : alternate_return = gfc_get_fake_result_decl (sym, 0);
8203 42 : gfc_add_modify (&body, alternate_return, integer_zero_node);
8204 : }
8205 :
8206 84089 : if (ns->entries)
8207 : {
8208 : /* Jump to the correct entry point. */
8209 632 : tmp = gfc_trans_entry_master_switch (ns->entries);
8210 632 : gfc_add_expr_to_block (&body, tmp);
8211 : }
8212 :
8213 : /* If bounds-checking is enabled, generate code to check passed in actual
8214 : arguments against the expected dummy argument attributes (e.g. string
8215 : lengths). */
8216 84089 : if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c)
8217 2803 : add_argument_checking (&body, sym);
8218 :
8219 84089 : finish_oacc_declare (ns, sym, false);
8220 :
8221 84089 : tmp = gfc_trans_code (ns->code);
8222 84089 : gfc_add_expr_to_block (&body, tmp);
8223 :
8224 : /* This permits the return value to be correctly initialized, even when the
8225 : function result was not referenced. */
8226 84089 : if (sym->abr_modproc_decl
8227 240 : && IS_PDT (sym)
8228 1 : && !sym->attr.allocatable
8229 1 : && sym->result == sym
8230 84090 : && get_proc_result (sym) == NULL_TREE)
8231 : {
8232 1 : gfc_get_fake_result_decl (sym->result, 0);
8233 : /* TODO: move to the appropriate place in resolve.cc. */
8234 1 : emit_not_set_warning (sym);
8235 : }
8236 :
8237 84089 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8238 84089 : || (sym->result && sym->result != sym
8239 1158 : && sym->result->ts.type == BT_DERIVED
8240 149 : && sym->result->ts.u.derived->attr.alloc_comp))
8241 : {
8242 11957 : bool artificial_result_decl = false;
8243 11957 : tree result = get_proc_result (sym);
8244 11957 : gfc_symbol *rsym = sym == sym->result ? sym : sym->result;
8245 :
8246 : /* Make sure that a function returning an object with
8247 : alloc/pointer_components always has a result, where at least
8248 : the allocatable/pointer components are set to zero. */
8249 11957 : if (result == NULL_TREE && sym->attr.function
8250 228 : && ((sym->result->ts.type == BT_DERIVED
8251 26 : && (sym->attr.allocatable
8252 20 : || sym->attr.pointer
8253 18 : || sym->result->ts.u.derived->attr.alloc_comp
8254 18 : || sym->result->ts.u.derived->attr.pointer_comp))
8255 220 : || (sym->result->ts.type == BT_CLASS
8256 38 : && (CLASS_DATA (sym->result)->attr.allocatable
8257 11 : || CLASS_DATA (sym->result)->attr.class_pointer
8258 0 : || CLASS_DATA (sym->result)->attr.alloc_comp
8259 0 : || CLASS_DATA (sym->result)->attr.pointer_comp))))
8260 : {
8261 46 : artificial_result_decl = true;
8262 46 : result = gfc_get_fake_result_decl (sym->result, 0);
8263 : }
8264 :
8265 11957 : if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer)
8266 : {
8267 11351 : if (sym->attr.allocatable && sym->attr.dimension == 0
8268 101 : && sym->result == sym)
8269 75 : gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result),
8270 : null_pointer_node));
8271 11276 : else if (sym->ts.type == BT_CLASS
8272 732 : && CLASS_DATA (sym)->attr.allocatable
8273 503 : && CLASS_DATA (sym)->attr.dimension == 0
8274 316 : && sym->result == sym)
8275 : {
8276 135 : tmp = gfc_class_data_get (result);
8277 135 : gfc_add_modify (&init, tmp,
8278 135 : fold_convert (TREE_TYPE (tmp),
8279 : null_pointer_node));
8280 135 : gfc_reset_vptr (&init, nullptr, result,
8281 135 : sym->result->ts.u.derived);
8282 : }
8283 11141 : else if (sym->ts.type == BT_DERIVED
8284 1217 : && !sym->attr.allocatable)
8285 : {
8286 1192 : gfc_expr *init_exp;
8287 : /* Arrays are not initialized using the default initializer of
8288 : their elements. Therefore only check if a default
8289 : initializer is available when the result is scalar. */
8290 1192 : init_exp = rsym->as ? NULL
8291 1171 : : gfc_generate_initializer (&rsym->ts, true);
8292 1171 : if (init_exp)
8293 : {
8294 628 : tmp = gfc_trans_structure_assign (result, init_exp, 0);
8295 628 : gfc_free_expr (init_exp);
8296 628 : gfc_add_expr_to_block (&init, tmp);
8297 : }
8298 :
8299 1192 : if (rsym->ts.u.derived->attr.alloc_comp)
8300 : {
8301 431 : rank = rsym->as ? rsym->as->rank : 0;
8302 431 : tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result,
8303 : rank);
8304 431 : gfc_prepend_expr_to_block (&body, tmp);
8305 : }
8306 : }
8307 : }
8308 :
8309 11957 : if (result == NULL_TREE || artificial_result_decl)
8310 : /* TODO: move to the appropriate place in resolve.cc. */
8311 228 : emit_not_set_warning (sym);
8312 :
8313 228 : if (result != NULL_TREE)
8314 11775 : gfc_add_expr_to_block (&body, gfc_generate_return ());
8315 : }
8316 :
8317 : /* Reset recursion-check variable. */
8318 84089 : if (recurcheckvar != NULL_TREE)
8319 : {
8320 840 : gfc_add_modify (&cleanup, recurcheckvar, logical_false_node);
8321 840 : recurcheckvar = NULL;
8322 : }
8323 :
8324 : /* If IEEE modules are loaded, restore the floating-point state. */
8325 84089 : if (ieee)
8326 443 : gfc_restore_fp_state (&cleanup, fpstate);
8327 :
8328 : /* Finish the function body and add init and cleanup code. */
8329 84089 : tmp = gfc_finish_block (&body);
8330 : /* Add code to create and cleanup arrays. */
8331 84089 : gfc_start_wrapped_block (&try_block, tmp);
8332 84089 : gfc_trans_deferred_vars (sym, &try_block);
8333 84089 : gfc_add_init_cleanup (&try_block, gfc_finish_block (&init),
8334 : gfc_finish_block (&cleanup));
8335 :
8336 : /* Add all the decls we created during processing. */
8337 84089 : decl = nreverse (saved_function_decls);
8338 458998 : while (decl)
8339 : {
8340 290820 : tree next;
8341 :
8342 290820 : next = DECL_CHAIN (decl);
8343 290820 : DECL_CHAIN (decl) = NULL_TREE;
8344 290820 : pushdecl (decl);
8345 290820 : decl = next;
8346 : }
8347 84089 : saved_function_decls = NULL_TREE;
8348 :
8349 84089 : gfc_add_expr_to_block (&outer_block, gfc_finish_wrapped_block (&try_block));
8350 84089 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&outer_block);
8351 84089 : decl = getdecls ();
8352 :
8353 : /* Finish off this function and send it for code generation. */
8354 84089 : poplevel (1, 1);
8355 84089 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8356 :
8357 168178 : DECL_SAVED_TREE (fndecl)
8358 168178 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
8359 168178 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
8360 :
8361 : /* Output the GENERIC tree. */
8362 84089 : dump_function (TDI_original, fndecl);
8363 :
8364 : /* Store the end of the function, so that we get good line number
8365 : info for the epilogue. */
8366 84089 : cfun->function_end_locus = input_location;
8367 :
8368 : /* We're leaving the context of this function, so zap cfun.
8369 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
8370 : tree_rest_of_compilation. */
8371 84089 : set_cfun (NULL);
8372 :
8373 84089 : if (old_context)
8374 : {
8375 22873 : pop_function_context ();
8376 22873 : saved_function_decls = saved_parent_function_decls;
8377 : }
8378 84089 : current_function_decl = old_context;
8379 :
8380 84089 : if (decl_function_context (fndecl))
8381 : {
8382 : /* Register this function with cgraph just far enough to get it
8383 : added to our parent's nested function list.
8384 : If there are static coarrays in this function, the nested _caf_init
8385 : function has already called cgraph_create_node, which also created
8386 : the cgraph node for this function. */
8387 22873 : if (!has_coarray_vars_or_accessors || flag_coarray != GFC_FCOARRAY_LIB)
8388 22671 : (void) cgraph_node::get_create (fndecl);
8389 : }
8390 : else
8391 61216 : cgraph_node::finalize_function (fndecl, true);
8392 :
8393 84089 : gfc_trans_use_stmts (ns);
8394 84089 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
8395 :
8396 84089 : if (sym->attr.is_main_program)
8397 26026 : create_main_function (fndecl);
8398 :
8399 84089 : current_procedure_symbol = previous_procedure_symbol;
8400 84089 : }
8401 :
8402 :
8403 : void
8404 31278 : gfc_generate_constructors (void)
8405 : {
8406 31278 : gcc_assert (gfc_static_ctors == NULL_TREE);
8407 : #if 0
8408 : tree fnname;
8409 : tree type;
8410 : tree fndecl;
8411 : tree decl;
8412 : tree tmp;
8413 :
8414 : if (gfc_static_ctors == NULL_TREE)
8415 : return;
8416 :
8417 : fnname = get_file_function_name ("I");
8418 : type = build_function_type_list (void_type_node, NULL_TREE);
8419 :
8420 : fndecl = build_decl (input_location,
8421 : FUNCTION_DECL, fnname, type);
8422 : TREE_PUBLIC (fndecl) = 1;
8423 :
8424 : decl = build_decl (input_location,
8425 : RESULT_DECL, NULL_TREE, void_type_node);
8426 : DECL_ARTIFICIAL (decl) = 1;
8427 : DECL_IGNORED_P (decl) = 1;
8428 : DECL_CONTEXT (decl) = fndecl;
8429 : DECL_RESULT (fndecl) = decl;
8430 :
8431 : pushdecl (fndecl);
8432 :
8433 : current_function_decl = fndecl;
8434 :
8435 : rest_of_decl_compilation (fndecl, 1, 0);
8436 :
8437 : make_decl_rtl (fndecl);
8438 :
8439 : allocate_struct_function (fndecl, false);
8440 :
8441 : pushlevel ();
8442 :
8443 : for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors))
8444 : {
8445 : tmp = build_call_expr_loc (input_location,
8446 : TREE_VALUE (gfc_static_ctors), 0);
8447 : DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp);
8448 : }
8449 :
8450 : decl = getdecls ();
8451 : poplevel (1, 1);
8452 :
8453 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8454 : DECL_SAVED_TREE (fndecl)
8455 : = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl),
8456 : DECL_INITIAL (fndecl));
8457 :
8458 : free_after_parsing (cfun);
8459 : free_after_compilation (cfun);
8460 :
8461 : tree_rest_of_compilation (fndecl);
8462 :
8463 : current_function_decl = NULL_TREE;
8464 : #endif
8465 31278 : }
8466 :
8467 :
8468 : /* Helper function for checking of variables declared in a BLOCK DATA program
8469 : unit. */
8470 :
8471 : static void
8472 300 : check_block_data_decls (gfc_symbol * sym)
8473 : {
8474 300 : if (warn_unused_variable
8475 13 : && sym->attr.flavor == FL_VARIABLE
8476 7 : && !sym->attr.in_common
8477 3 : && !sym->attr.artificial)
8478 : {
8479 2 : gfc_warning (OPT_Wunused_variable,
8480 : "Symbol %qs at %L is declared in a BLOCK DATA "
8481 : "program unit but is not in a COMMON block",
8482 : sym->name, &sym->declared_at);
8483 : }
8484 300 : }
8485 :
8486 :
8487 : /* Translates a BLOCK DATA program unit. This means emitting the
8488 : commons contained therein plus their initializations. We also emit
8489 : a globally visible symbol to make sure that each BLOCK DATA program
8490 : unit remains unique. */
8491 :
8492 : void
8493 72 : gfc_generate_block_data (gfc_namespace * ns)
8494 : {
8495 72 : tree decl;
8496 72 : tree id;
8497 :
8498 : /* Tell the backend the source location of the block data. */
8499 72 : if (ns->proc_name)
8500 29 : input_location = gfc_get_location (&ns->proc_name->declared_at);
8501 : else
8502 43 : input_location = gfc_get_location (&gfc_current_locus);
8503 :
8504 : /* Process the DATA statements. */
8505 72 : gfc_trans_common (ns);
8506 :
8507 : /* Check for variables declared in BLOCK DATA but not used in COMMON. */
8508 72 : gfc_traverse_ns (ns, check_block_data_decls);
8509 :
8510 : /* Create a global symbol with the mane of the block data. This is to
8511 : generate linker errors if the same name is used twice. It is never
8512 : really used. */
8513 72 : if (ns->proc_name)
8514 29 : id = gfc_sym_mangled_function_id (ns->proc_name);
8515 : else
8516 43 : id = get_identifier ("__BLOCK_DATA__");
8517 :
8518 72 : decl = build_decl (input_location,
8519 : VAR_DECL, id, gfc_array_index_type);
8520 72 : TREE_PUBLIC (decl) = 1;
8521 72 : TREE_STATIC (decl) = 1;
8522 72 : DECL_IGNORED_P (decl) = 1;
8523 :
8524 72 : pushdecl (decl);
8525 72 : rest_of_decl_compilation (decl, 1, 0);
8526 72 : }
8527 :
8528 : void
8529 13896 : gfc_start_saved_local_decls ()
8530 : {
8531 13896 : gcc_checking_assert (current_function_decl != NULL_TREE);
8532 13896 : saved_local_decls = NULL_TREE;
8533 13896 : }
8534 :
8535 : void
8536 13896 : gfc_stop_saved_local_decls ()
8537 : {
8538 13896 : tree decl = nreverse (saved_local_decls);
8539 40682 : while (decl)
8540 : {
8541 12890 : tree next;
8542 :
8543 12890 : next = DECL_CHAIN (decl);
8544 12890 : DECL_CHAIN (decl) = NULL_TREE;
8545 12890 : pushdecl (decl);
8546 12890 : decl = next;
8547 : }
8548 13896 : saved_local_decls = NULL_TREE;
8549 13896 : }
8550 :
8551 : /* Process the local variables of a BLOCK construct. */
8552 :
8553 : void
8554 13848 : gfc_process_block_locals (gfc_namespace* ns)
8555 : {
8556 13848 : gfc_start_saved_local_decls ();
8557 13848 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8558 :
8559 13848 : generate_local_vars (ns);
8560 :
8561 13848 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8562 41 : generate_coarray_init (ns);
8563 13848 : gfc_stop_saved_local_decls ();
8564 13848 : }
8565 :
8566 :
8567 : #include "gt-fortran-trans-decl.h"
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