Line data Source code
1 : /* Backend function setup
2 : Copyright (C) 2002-2026 Free Software Foundation, Inc.
3 : Contributed by Paul Brook
4 :
5 : This file is part of GCC.
6 :
7 : GCC is free software; you can redistribute it and/or modify it under
8 : the terms of the GNU General Public License as published by the Free
9 : Software Foundation; either version 3, or (at your option) any later
10 : version.
11 :
12 : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 : WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 : FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 : for more details.
16 :
17 : You should have received a copy of the GNU General Public License
18 : along with GCC; see the file COPYING3. If not see
19 : <http://www.gnu.org/licenses/>. */
20 :
21 : /* trans-decl.cc -- Handling of backend function and variable decls, etc */
22 :
23 : #include "config.h"
24 : #include "system.h"
25 : #include "coretypes.h"
26 : #include "target.h"
27 : #include "function.h"
28 : #include "tree.h"
29 : #include "gfortran.h"
30 : #include "gimple-expr.h" /* For create_tmp_var_raw. */
31 : #include "trans.h"
32 : #include "stringpool.h"
33 : #include "cgraph.h"
34 : #include "fold-const.h"
35 : #include "stor-layout.h"
36 : #include "varasm.h"
37 : #include "attribs.h"
38 : #include "dumpfile.h"
39 : #include "toplev.h" /* For announce_function. */
40 : #include "debug.h"
41 : #include "constructor.h"
42 : #include "trans-types.h"
43 : #include "trans-array.h"
44 : #include "trans-const.h"
45 : /* Only for gfc_trans_code. Shouldn't need to include this. */
46 : #include "trans-stmt.h"
47 : #include "trans-descriptor.h"
48 : #include "gomp-constants.h"
49 : #include "gimplify.h"
50 : #include "context.h"
51 : #include "omp-general.h"
52 : #include "omp-offload.h"
53 : #include "attr-fnspec.h"
54 : #include "tree-iterator.h"
55 : #include "dependency.h"
56 :
57 : #define MAX_LABEL_VALUE 99999
58 :
59 :
60 : /* Holds the result of the function if no result variable specified. */
61 :
62 : static GTY(()) tree current_fake_result_decl;
63 : static GTY(()) tree parent_fake_result_decl;
64 :
65 :
66 : /* Holds the variable DECLs for the current function. */
67 :
68 : static GTY(()) tree saved_function_decls;
69 : static GTY(()) tree saved_parent_function_decls;
70 :
71 : /* Holds the variable DECLs that are locals. */
72 :
73 : static GTY(()) tree saved_local_decls;
74 :
75 : /* The namespace of the module we're currently generating. Only used while
76 : outputting decls for module variables. Do not rely on this being set. */
77 :
78 : static gfc_namespace *module_namespace;
79 :
80 : /* The currently processed procedure symbol. */
81 : static gfc_symbol* current_procedure_symbol = NULL;
82 :
83 : /* The currently processed module. */
84 : static struct module_htab_entry *cur_module;
85 :
86 : /* With -fcoarray=lib: For generating the registering call
87 : of static coarrays. */
88 : static bool has_coarray_vars_or_accessors;
89 : static stmtblock_t caf_init_block;
90 :
91 :
92 : /* List of static constructor functions. */
93 :
94 : tree gfc_static_ctors;
95 :
96 :
97 : /* Whether we've seen a symbol from an IEEE module in the namespace. */
98 : static int seen_ieee_symbol;
99 :
100 : /* Function declarations for builtin library functions. */
101 :
102 : tree gfor_fndecl_pause_numeric;
103 : tree gfor_fndecl_pause_string;
104 : tree gfor_fndecl_stop_numeric;
105 : tree gfor_fndecl_stop_string;
106 : tree gfor_fndecl_error_stop_numeric;
107 : tree gfor_fndecl_error_stop_string;
108 : tree gfor_fndecl_runtime_error;
109 : tree gfor_fndecl_runtime_error_at;
110 : tree gfor_fndecl_runtime_warning_at;
111 : tree gfor_fndecl_os_error_at;
112 : tree gfor_fndecl_generate_error;
113 : tree gfor_fndecl_set_args;
114 : tree gfor_fndecl_set_fpe;
115 : tree gfor_fndecl_set_options;
116 : tree gfor_fndecl_set_convert;
117 : tree gfor_fndecl_set_record_marker;
118 : tree gfor_fndecl_set_max_subrecord_length;
119 : tree gfor_fndecl_ctime;
120 : tree gfor_fndecl_fdate;
121 : tree gfor_fndecl_ttynam;
122 : tree gfor_fndecl_in_pack;
123 : tree gfor_fndecl_in_unpack;
124 : tree gfor_fndecl_in_pack_class;
125 : tree gfor_fndecl_in_unpack_class;
126 : tree gfor_fndecl_associated;
127 : tree gfor_fndecl_system_clock4;
128 : tree gfor_fndecl_system_clock8;
129 : tree gfor_fndecl_ieee_procedure_entry;
130 : tree gfor_fndecl_ieee_procedure_exit;
131 :
132 : /* Coarray run-time library function decls. */
133 : tree gfor_fndecl_caf_init;
134 : tree gfor_fndecl_caf_finalize;
135 : tree gfor_fndecl_caf_this_image;
136 : tree gfor_fndecl_caf_num_images;
137 : tree gfor_fndecl_caf_register;
138 : tree gfor_fndecl_caf_deregister;
139 : tree gfor_fndecl_caf_register_accessor;
140 : tree gfor_fndecl_caf_register_accessors_finish;
141 : tree gfor_fndecl_caf_get_remote_function_index;
142 : tree gfor_fndecl_caf_get_from_remote;
143 : tree gfor_fndecl_caf_send_to_remote;
144 : tree gfor_fndecl_caf_transfer_between_remotes;
145 : tree gfor_fndecl_caf_sync_all;
146 : tree gfor_fndecl_caf_sync_memory;
147 : tree gfor_fndecl_caf_sync_images;
148 : tree gfor_fndecl_caf_stop_str;
149 : tree gfor_fndecl_caf_stop_numeric;
150 : tree gfor_fndecl_caf_error_stop;
151 : tree gfor_fndecl_caf_error_stop_str;
152 : tree gfor_fndecl_caf_atomic_def;
153 : tree gfor_fndecl_caf_atomic_ref;
154 : tree gfor_fndecl_caf_atomic_cas;
155 : tree gfor_fndecl_caf_atomic_op;
156 : tree gfor_fndecl_caf_lock;
157 : tree gfor_fndecl_caf_unlock;
158 : tree gfor_fndecl_caf_event_post;
159 : tree gfor_fndecl_caf_event_wait;
160 : tree gfor_fndecl_caf_event_query;
161 : tree gfor_fndecl_caf_fail_image;
162 : tree gfor_fndecl_caf_failed_images;
163 : tree gfor_fndecl_caf_image_status;
164 : tree gfor_fndecl_caf_stopped_images;
165 : tree gfor_fndecl_caf_form_team;
166 : tree gfor_fndecl_caf_change_team;
167 : tree gfor_fndecl_caf_end_team;
168 : tree gfor_fndecl_caf_sync_team;
169 : tree gfor_fndecl_caf_get_team;
170 : tree gfor_fndecl_caf_team_number;
171 : tree gfor_fndecl_co_broadcast;
172 : tree gfor_fndecl_co_max;
173 : tree gfor_fndecl_co_min;
174 : tree gfor_fndecl_co_reduce;
175 : tree gfor_fndecl_co_sum;
176 : tree gfor_fndecl_caf_is_present_on_remote;
177 : tree gfor_fndecl_caf_random_init;
178 :
179 :
180 : /* Math functions. Many other math functions are handled in
181 : trans-intrinsic.cc. */
182 :
183 : gfc_powdecl_list gfor_fndecl_math_powi[4][3];
184 : tree gfor_fndecl_unsigned_pow_list[5][5];
185 :
186 : tree gfor_fndecl_math_ishftc4;
187 : tree gfor_fndecl_math_ishftc8;
188 : tree gfor_fndecl_math_ishftc16;
189 :
190 :
191 : /* String functions. */
192 :
193 : tree gfor_fndecl_compare_string;
194 : tree gfor_fndecl_concat_string;
195 : tree gfor_fndecl_string_len_trim;
196 : tree gfor_fndecl_string_index;
197 : tree gfor_fndecl_string_scan;
198 : tree gfor_fndecl_string_verify;
199 : tree gfor_fndecl_string_trim;
200 : tree gfor_fndecl_string_minmax;
201 : tree gfor_fndecl_string_split;
202 : tree gfor_fndecl_adjustl;
203 : tree gfor_fndecl_adjustr;
204 : tree gfor_fndecl_select_string;
205 : tree gfor_fndecl_compare_string_char4;
206 : tree gfor_fndecl_concat_string_char4;
207 : tree gfor_fndecl_string_len_trim_char4;
208 : tree gfor_fndecl_string_index_char4;
209 : tree gfor_fndecl_string_scan_char4;
210 : tree gfor_fndecl_string_verify_char4;
211 : tree gfor_fndecl_string_trim_char4;
212 : tree gfor_fndecl_string_minmax_char4;
213 : tree gfor_fndecl_string_split_char4;
214 : tree gfor_fndecl_adjustl_char4;
215 : tree gfor_fndecl_adjustr_char4;
216 : tree gfor_fndecl_select_string_char4;
217 :
218 :
219 : /* Conversion between character kinds. */
220 : tree gfor_fndecl_convert_char1_to_char4;
221 : tree gfor_fndecl_convert_char4_to_char1;
222 :
223 :
224 : /* Other misc. runtime library functions. */
225 : tree gfor_fndecl_iargc;
226 : tree gfor_fndecl_kill;
227 : tree gfor_fndecl_kill_sub;
228 : tree gfor_fndecl_is_contiguous0;
229 : tree gfor_fndecl_fstat_i4_sub;
230 : tree gfor_fndecl_fstat_i8_sub;
231 : tree gfor_fndecl_lstat_i4_sub;
232 : tree gfor_fndecl_lstat_i8_sub;
233 : tree gfor_fndecl_stat_i4_sub;
234 : tree gfor_fndecl_stat_i8_sub;
235 :
236 :
237 : /* Intrinsic functions implemented in Fortran. */
238 : tree gfor_fndecl_sc_kind;
239 : tree gfor_fndecl_si_kind;
240 : tree gfor_fndecl_sl_kind;
241 : tree gfor_fndecl_sr_kind;
242 :
243 : /* BLAS gemm functions. */
244 : tree gfor_fndecl_sgemm;
245 : tree gfor_fndecl_dgemm;
246 : tree gfor_fndecl_cgemm;
247 : tree gfor_fndecl_zgemm;
248 :
249 : /* RANDOM_INIT function. */
250 : tree gfor_fndecl_random_init; /* libgfortran, 1 image only. */
251 :
252 : /* Deep copy helper for recursive allocatable array components. */
253 : tree gfor_fndecl_cfi_deep_copy_array;
254 :
255 : static void
256 5161 : gfc_add_decl_to_parent_function (tree decl)
257 : {
258 5161 : gcc_assert (decl);
259 5161 : DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl);
260 5161 : DECL_NONLOCAL (decl) = 1;
261 5161 : DECL_CHAIN (decl) = saved_parent_function_decls;
262 5161 : saved_parent_function_decls = decl;
263 5161 : }
264 :
265 : void
266 293473 : gfc_add_decl_to_function (tree decl)
267 : {
268 293473 : gcc_assert (decl);
269 293473 : TREE_USED (decl) = 1;
270 293473 : DECL_CONTEXT (decl) = current_function_decl;
271 293473 : DECL_CHAIN (decl) = saved_function_decls;
272 293473 : saved_function_decls = decl;
273 293473 : }
274 :
275 : static void
276 13345 : add_decl_as_local (tree decl)
277 : {
278 13345 : gcc_assert (decl);
279 13345 : TREE_USED (decl) = 1;
280 13345 : DECL_CONTEXT (decl) = current_function_decl;
281 13345 : DECL_CHAIN (decl) = saved_local_decls;
282 13345 : saved_local_decls = decl;
283 13345 : }
284 :
285 :
286 : /* Build a backend label declaration. Set TREE_USED for named labels.
287 : The context of the label is always the current_function_decl. All
288 : labels are marked artificial. */
289 :
290 : tree
291 628617 : gfc_build_label_decl (tree label_id)
292 : {
293 : /* 2^32 temporaries should be enough. */
294 628617 : static unsigned int tmp_num = 1;
295 628617 : tree label_decl;
296 628617 : char *label_name;
297 :
298 628617 : if (label_id == NULL_TREE)
299 : {
300 : /* Build an internal label name. */
301 625097 : ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++);
302 625097 : label_id = get_identifier (label_name);
303 : }
304 : else
305 628617 : label_name = NULL;
306 :
307 : /* Build the LABEL_DECL node. Labels have no type. */
308 628617 : label_decl = build_decl (input_location,
309 : LABEL_DECL, label_id, void_type_node);
310 628617 : DECL_CONTEXT (label_decl) = current_function_decl;
311 628617 : SET_DECL_MODE (label_decl, VOIDmode);
312 :
313 : /* We always define the label as used, even if the original source
314 : file never references the label. We don't want all kinds of
315 : spurious warnings for old-style Fortran code with too many
316 : labels. */
317 628617 : TREE_USED (label_decl) = 1;
318 :
319 628617 : DECL_ARTIFICIAL (label_decl) = 1;
320 628617 : return label_decl;
321 : }
322 :
323 :
324 : /* Set the backend source location of a decl. */
325 :
326 : void
327 176600 : gfc_set_decl_location (tree decl, locus * loc)
328 : {
329 176600 : DECL_SOURCE_LOCATION (decl) = gfc_get_location (loc);
330 176600 : }
331 :
332 :
333 : /* Return the backend label declaration for a given label structure,
334 : or create it if it doesn't exist yet. */
335 :
336 : tree
337 5850 : gfc_get_label_decl (gfc_st_label * lp)
338 : {
339 5850 : if (lp->backend_decl)
340 : return lp->backend_decl;
341 : else
342 : {
343 3520 : char label_name[GFC_MAX_SYMBOL_LEN + 1];
344 3520 : tree label_decl;
345 :
346 : /* Validate the label declaration from the front end. */
347 3520 : gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE);
348 :
349 : /* Build a mangled name for the label. */
350 3520 : if (lp->omp_region)
351 11 : sprintf (label_name, "__label_%d_%.6d", lp->omp_region, lp->value);
352 : else
353 3509 : sprintf (label_name, "__label_%.6d", lp->value);
354 :
355 : /* Build the LABEL_DECL node. */
356 3520 : label_decl = gfc_build_label_decl (get_identifier (label_name));
357 :
358 : /* Tell the debugger where the label came from. */
359 3520 : if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */
360 3520 : gfc_set_decl_location (label_decl, &lp->where);
361 : else
362 0 : DECL_ARTIFICIAL (label_decl) = 1;
363 :
364 : /* Store the label in the label list and return the LABEL_DECL. */
365 3520 : lp->backend_decl = label_decl;
366 3520 : return label_decl;
367 : }
368 : }
369 :
370 : /* Return the name of an identifier. */
371 :
372 : static const char *
373 421637 : sym_identifier (gfc_symbol *sym)
374 : {
375 421637 : if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0)
376 : return "MAIN__";
377 : else
378 417197 : return sym->name;
379 : }
380 :
381 : /* Convert a gfc_symbol to an identifier of the same name. */
382 :
383 : static tree
384 421637 : gfc_sym_identifier (gfc_symbol * sym)
385 : {
386 421637 : return get_identifier (sym_identifier (sym));
387 : }
388 :
389 : /* Construct mangled name from symbol name. */
390 :
391 : static const char *
392 18891 : mangled_identifier (gfc_symbol *sym)
393 : {
394 18891 : gfc_symbol *proc = sym->ns->proc_name;
395 18891 : static char name[3*GFC_MAX_MANGLED_SYMBOL_LEN + 14];
396 : /* Prevent the mangling of identifiers that have an assigned
397 : binding label (mainly those that are bind(c)). */
398 :
399 18891 : if (sym->attr.is_bind_c == 1 && sym->binding_label)
400 : return sym->binding_label;
401 :
402 18766 : if (!sym->fn_result_spec
403 57 : || (sym->module && !(proc && proc->attr.flavor == FL_PROCEDURE)))
404 : {
405 18717 : if (sym->module == NULL)
406 0 : return sym_identifier (sym);
407 : else
408 18717 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
409 : }
410 : else
411 : {
412 : /* This is an entity that is actually local to a module procedure
413 : that appears in the result specification expression. Since
414 : sym->module will be a zero length string, we use ns->proc_name
415 : to provide the module name instead. */
416 49 : if (proc && proc->module)
417 48 : snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s",
418 : proc->module, proc->name, sym->name);
419 : else
420 1 : snprintf (name, sizeof name, "__%s_PROC_%s",
421 : proc->name, sym->name);
422 : }
423 :
424 : return name;
425 : }
426 :
427 : /* Get mangled identifier, adding the symbol to the global table if
428 : it is not yet already there. */
429 :
430 : static tree
431 18742 : gfc_sym_mangled_identifier (gfc_symbol * sym)
432 : {
433 18742 : tree result;
434 18742 : gfc_gsymbol *gsym;
435 18742 : const char *name;
436 :
437 18742 : name = mangled_identifier (sym);
438 18742 : result = get_identifier (name);
439 :
440 18742 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
441 18742 : if (gsym == NULL)
442 : {
443 18560 : gsym = gfc_get_gsymbol (name, false);
444 18560 : gsym->ns = sym->ns;
445 18560 : gsym->sym_name = sym->name;
446 : }
447 :
448 18742 : return result;
449 : }
450 :
451 : /* Construct mangled function name from symbol name. */
452 :
453 : static tree
454 82297 : gfc_sym_mangled_function_id (gfc_symbol * sym)
455 : {
456 82297 : int has_underscore;
457 82297 : char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1];
458 :
459 : /* It may be possible to simply use the binding label if it's
460 : provided, and remove the other checks. Then we could use it
461 : for other things if we wished. */
462 82297 : if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) &&
463 3462 : sym->binding_label)
464 : /* use the binding label rather than the mangled name */
465 3452 : return get_identifier (sym->binding_label);
466 :
467 78845 : if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL
468 27075 : || (sym->module != NULL && (sym->attr.external
469 26004 : || sym->attr.if_source == IFSRC_IFBODY)))
470 52841 : && !sym->attr.module_procedure)
471 : {
472 : /* Main program is mangled into MAIN__. */
473 52405 : if (sym->attr.is_main_program)
474 26465 : return get_identifier ("MAIN__");
475 :
476 : /* Intrinsic procedures are never mangled. */
477 25940 : if (sym->attr.proc == PROC_INTRINSIC)
478 11091 : return get_identifier (sym->name);
479 :
480 14849 : if (flag_underscoring)
481 : {
482 13922 : has_underscore = strchr (sym->name, '_') != 0;
483 13922 : if (flag_second_underscore && has_underscore)
484 201 : snprintf (name, sizeof name, "%s__", sym->name);
485 : else
486 13721 : snprintf (name, sizeof name, "%s_", sym->name);
487 13922 : return get_identifier (name);
488 : }
489 : else
490 927 : return get_identifier (sym->name);
491 : }
492 : else
493 : {
494 26440 : snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name);
495 26440 : return get_identifier (name);
496 : }
497 : }
498 :
499 :
500 : void
501 103318 : gfc_set_decl_assembler_name (tree decl, tree name)
502 : {
503 103318 : tree target_mangled = targetm.mangle_decl_assembler_name (decl, name);
504 103318 : SET_DECL_ASSEMBLER_NAME (decl, target_mangled);
505 103318 : }
506 :
507 :
508 : /* Returns true if a variable of specified size should go on the stack. */
509 :
510 : bool
511 170156 : gfc_can_put_var_on_stack (tree size)
512 : {
513 170156 : unsigned HOST_WIDE_INT low;
514 :
515 170156 : if (!INTEGER_CST_P (size))
516 : return 0;
517 :
518 162589 : if (flag_max_stack_var_size < 0)
519 : return 1;
520 :
521 134781 : if (!tree_fits_uhwi_p (size))
522 : return 0;
523 :
524 134781 : low = TREE_INT_CST_LOW (size);
525 134781 : if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size)
526 206 : return 0;
527 :
528 : /* TODO: Set a per-function stack size limit. */
529 :
530 : return 1;
531 : }
532 :
533 :
534 : /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to
535 : an expression involving its corresponding pointer. There are
536 : 2 cases; one for variable size arrays, and one for everything else,
537 : because variable-sized arrays require one fewer level of
538 : indirection. */
539 :
540 : static void
541 288 : gfc_finish_cray_pointee (tree decl, gfc_symbol *sym)
542 : {
543 288 : tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer);
544 288 : tree value;
545 :
546 : /* Parameters need to be dereferenced. */
547 288 : if (sym->cp_pointer->attr.dummy)
548 1 : ptr_decl = build_fold_indirect_ref_loc (input_location,
549 : ptr_decl);
550 :
551 : /* Check to see if we're dealing with a variable-sized array. */
552 288 : if (sym->attr.dimension
553 288 : && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE)
554 : {
555 : /* These decls will be dereferenced later, so we don't dereference
556 : them here. */
557 140 : value = convert (TREE_TYPE (decl), ptr_decl);
558 : }
559 : else
560 : {
561 148 : ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)),
562 : ptr_decl);
563 148 : value = build_fold_indirect_ref_loc (input_location,
564 : ptr_decl);
565 : }
566 :
567 288 : SET_DECL_VALUE_EXPR (decl, value);
568 288 : DECL_HAS_VALUE_EXPR_P (decl) = 1;
569 288 : GFC_DECL_CRAY_POINTEE (decl) = 1;
570 288 : }
571 :
572 :
573 : /* Finish processing of a declaration without an initial value. */
574 :
575 : static void
576 176229 : gfc_finish_decl (tree decl)
577 : {
578 176229 : gcc_assert (TREE_CODE (decl) == PARM_DECL
579 : || DECL_INITIAL (decl) == NULL_TREE);
580 :
581 176229 : if (!VAR_P (decl))
582 : return;
583 :
584 774 : if (DECL_SIZE (decl) == NULL_TREE
585 774 : && COMPLETE_TYPE_P (TREE_TYPE (decl)))
586 0 : layout_decl (decl, 0);
587 :
588 : /* A few consistency checks. */
589 : /* A static variable with an incomplete type is an error if it is
590 : initialized. Also if it is not file scope. Otherwise, let it
591 : through, but if it is not `extern' then it may cause an error
592 : message later. */
593 : /* An automatic variable with an incomplete type is an error. */
594 :
595 : /* We should know the storage size. */
596 774 : gcc_assert (DECL_SIZE (decl) != NULL_TREE
597 : || (TREE_STATIC (decl)
598 : ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl))
599 : : DECL_EXTERNAL (decl)));
600 :
601 : /* The storage size should be constant. */
602 774 : gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl))
603 : || !DECL_SIZE (decl)
604 : || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST);
605 : }
606 :
607 :
608 : /* Handle setting of GFC_DECL_SCALAR* on DECL. */
609 :
610 : void
611 416336 : gfc_finish_decl_attrs (tree decl, symbol_attribute *attr)
612 : {
613 416336 : if (!attr->dimension && !attr->codimension)
614 : {
615 : /* Handle scalar allocatable variables. */
616 328371 : if (attr->allocatable)
617 : {
618 6895 : gfc_allocate_lang_decl (decl);
619 6895 : GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1;
620 : }
621 : /* Handle scalar pointer variables. */
622 328371 : if (attr->pointer)
623 : {
624 39940 : gfc_allocate_lang_decl (decl);
625 39940 : GFC_DECL_SCALAR_POINTER (decl) = 1;
626 : }
627 328371 : if (attr->target)
628 : {
629 24424 : gfc_allocate_lang_decl (decl);
630 24424 : GFC_DECL_SCALAR_TARGET (decl) = 1;
631 : }
632 : }
633 416336 : }
634 :
635 :
636 : /* Apply symbol attributes to a variable, and add it to the function scope. */
637 :
638 : static void
639 186329 : gfc_finish_var_decl (tree decl, gfc_symbol * sym)
640 : {
641 186329 : tree new_type;
642 :
643 : /* Set DECL_VALUE_EXPR for Cray Pointees. */
644 186329 : if (sym->attr.cray_pointee)
645 288 : gfc_finish_cray_pointee (decl, sym);
646 :
647 : /* TREE_ADDRESSABLE means the address of this variable is actually needed.
648 : This is the equivalent of the TARGET variables.
649 : We also need to set this if the variable is passed by reference in a
650 : CALL statement. */
651 186329 : if (sym->attr.target)
652 26782 : TREE_ADDRESSABLE (decl) = 1;
653 :
654 : /* If it wasn't used we wouldn't be getting it. */
655 186329 : TREE_USED (decl) = 1;
656 :
657 186329 : if (sym->attr.flavor == FL_PARAMETER
658 1477 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
659 1463 : TREE_READONLY (decl) = 1;
660 :
661 : /* The front end already warned the user about this decl. Once should be
662 : enough. */
663 186329 : if (sym->attr.warning_emitted)
664 21 : suppress_warning (decl);
665 :
666 : /* Chain this decl to the pending declarations. Don't do pushdecl()
667 : because this would add them to the current scope rather than the
668 : function scope. */
669 186329 : if (current_function_decl != NULL_TREE)
670 : {
671 167774 : if (sym->ns->proc_name
672 167768 : && (sym->ns->proc_name->backend_decl == current_function_decl
673 18406 : || sym->result == sym))
674 149362 : gfc_add_decl_to_function (decl);
675 18412 : else if (sym->ns->omp_affinity_iterators)
676 : {
677 : /* Iterator variables are block-local; other variables in the
678 : iterator namespace (e.g. implicitly typed host-associated
679 : ones used in locator expressions) belong in the enclosing
680 : function. */
681 : gfc_symbol *iter;
682 128 : for (iter = sym->ns->omp_affinity_iterators; iter;
683 18 : iter = iter->tlink)
684 127 : if (iter == sym)
685 : break;
686 110 : if (iter)
687 109 : add_decl_as_local (decl);
688 : else
689 1 : gfc_add_decl_to_function (decl);
690 : }
691 18302 : else if (sym->ns->proc_name
692 18296 : && sym->ns->proc_name->attr.flavor == FL_LABEL)
693 : /* This is a BLOCK construct. */
694 13236 : add_decl_as_local (decl);
695 : else
696 5066 : gfc_add_decl_to_parent_function (decl);
697 : }
698 :
699 186329 : if (sym->attr.cray_pointee)
700 : return;
701 :
702 186041 : if(sym->attr.is_bind_c == 1 && sym->binding_label)
703 : {
704 : /* We need to put variables that are bind(c) into the common
705 : segment of the object file, because this is what C would do.
706 : gfortran would typically put them in either the BSS or
707 : initialized data segments, and only mark them as common if
708 : they were part of common blocks. However, if they are not put
709 : into common space, then C cannot initialize global Fortran
710 : variables that it interoperates with and the draft says that
711 : either Fortran or C should be able to initialize it (but not
712 : both, of course.) (J3/04-007, section 15.3). */
713 125 : TREE_PUBLIC(decl) = 1;
714 125 : DECL_COMMON(decl) = 1;
715 125 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
716 : {
717 2 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
718 2 : DECL_VISIBILITY_SPECIFIED (decl) = true;
719 : }
720 : }
721 :
722 : /* If a variable is USE associated, it's always external. */
723 186041 : if (sym->attr.use_assoc || sym->attr.used_in_submodule)
724 : {
725 134 : DECL_EXTERNAL (decl) = 1;
726 134 : TREE_PUBLIC (decl) = 1;
727 : }
728 185907 : else if (sym->fn_result_spec && !sym->ns->proc_name->module)
729 : {
730 :
731 1 : if (sym->ns->proc_name->attr.if_source != IFSRC_DECL)
732 0 : DECL_EXTERNAL (decl) = 1;
733 : else
734 1 : TREE_STATIC (decl) = 1;
735 :
736 1 : TREE_PUBLIC (decl) = 1;
737 : }
738 185906 : else if (sym->module && !sym->attr.result && !sym->attr.dummy)
739 : {
740 : /* TODO: Don't set sym->module for result or dummy variables. */
741 18546 : gcc_assert (current_function_decl == NULL_TREE || sym->result == sym);
742 :
743 18546 : TREE_PUBLIC (decl) = 1;
744 18546 : TREE_STATIC (decl) = 1;
745 18546 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
746 : {
747 344 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
748 344 : DECL_VISIBILITY_SPECIFIED (decl) = true;
749 : }
750 : }
751 :
752 : /* Derived types are a bit peculiar because of the possibility of
753 : a default initializer; this must be applied each time the variable
754 : comes into scope it therefore need not be static. These variables
755 : are SAVE_NONE but have an initializer. Otherwise explicitly
756 : initialized variables are SAVE_IMPLICIT and explicitly saved are
757 : SAVE_EXPLICIT. */
758 186041 : if (!sym->attr.use_assoc
759 185910 : && (sym->attr.save != SAVE_NONE || sym->attr.data
760 150876 : || (sym->value && sym->ns->proc_name->attr.is_main_program)
761 146491 : || (flag_coarray == GFC_FCOARRAY_LIB
762 2355 : && sym->attr.codimension && !sym->attr.allocatable)))
763 39593 : TREE_STATIC (decl) = 1;
764 :
765 : /* Treat asynchronous variables the same as volatile, for now. */
766 186041 : if (sym->attr.volatile_ || sym->attr.asynchronous)
767 : {
768 775 : TREE_THIS_VOLATILE (decl) = 1;
769 775 : TREE_SIDE_EFFECTS (decl) = 1;
770 775 : new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE);
771 775 : TREE_TYPE (decl) = new_type;
772 : }
773 :
774 : /* Keep variables larger than max-stack-var-size off stack. */
775 186035 : if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive)
776 162034 : && !sym->attr.automatic
777 159007 : && !sym->attr.associate_var
778 150584 : && sym->attr.save != SAVE_EXPLICIT
779 146884 : && sym->attr.save != SAVE_IMPLICIT
780 117585 : && INTEGER_CST_P (DECL_SIZE_UNIT (decl))
781 117194 : && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
782 : /* Put variable length auto array pointers always into stack. */
783 141 : && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE
784 2 : || sym->attr.dimension == 0
785 2 : || sym->as->type != AS_EXPLICIT
786 2 : || sym->attr.pointer
787 2 : || sym->attr.allocatable)
788 186180 : && !DECL_ARTIFICIAL (decl))
789 : {
790 138 : if (flag_max_stack_var_size > 0
791 131 : && !(sym->ns->proc_name
792 131 : && sym->ns->proc_name->attr.is_main_program))
793 32 : gfc_warning (OPT_Wsurprising,
794 : "Array %qs at %L is larger than limit set by "
795 : "%<-fmax-stack-var-size=%>, moved from stack to static "
796 : "storage. This makes the procedure unsafe when called "
797 : "recursively, or concurrently from multiple threads. "
798 : "Consider increasing the %<-fmax-stack-var-size=%> "
799 : "limit (or use %<-frecursive%>, which implies "
800 : "unlimited %<-fmax-stack-var-size%>) - or change the "
801 : "code to use an ALLOCATABLE array. If the variable is "
802 : "never accessed concurrently, this warning can be "
803 : "ignored, and the variable could also be declared with "
804 : "the SAVE attribute.",
805 : sym->name, &sym->declared_at);
806 :
807 138 : TREE_STATIC (decl) = 1;
808 :
809 : /* Because the size of this variable isn't known until now, we may have
810 : greedily added an initializer to this variable (in build_init_assign)
811 : even though the max-stack-var-size indicates the variable should be
812 : static. Therefore we rip out the automatic initializer here and
813 : replace it with a static one. */
814 138 : gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name);
815 138 : gfc_code *prev = NULL;
816 138 : gfc_code *code = sym->ns->code;
817 138 : while (code && code->op == EXEC_INIT_ASSIGN)
818 : {
819 : /* Look for an initializer meant for this symbol. */
820 8 : if (code->expr1->symtree == st)
821 : {
822 8 : if (prev)
823 0 : prev->next = code->next;
824 : else
825 8 : sym->ns->code = code->next;
826 :
827 : break;
828 : }
829 :
830 0 : prev = code;
831 0 : code = code->next;
832 : }
833 146 : if (code && code->op == EXEC_INIT_ASSIGN)
834 : {
835 : /* Keep the init expression for a static initializer. */
836 8 : sym->value = code->expr2;
837 : /* Cleanup the defunct code object, without freeing the init expr. */
838 8 : code->expr2 = NULL;
839 8 : gfc_free_statement (code);
840 8 : free (code);
841 : }
842 : }
843 :
844 186041 : if (sym->attr.omp_allocate && TREE_STATIC (decl))
845 : {
846 9 : struct gfc_omp_namelist *n;
847 35 : for (n = sym->ns->omp_allocate; n; n = n->next)
848 35 : if (n->sym == sym)
849 : break;
850 9 : tree alloc = gfc_conv_constant_to_tree (n->u2.allocator);
851 9 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align)
852 : : NULL_TREE);
853 9 : DECL_ATTRIBUTES (decl)
854 18 : = tree_cons (get_identifier ("omp allocate"),
855 9 : build_tree_list (alloc, align), DECL_ATTRIBUTES (decl));
856 : }
857 :
858 : /* Mark weak variables. */
859 186041 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
860 1 : declare_weak (decl);
861 :
862 : /* Handle threadprivate variables. */
863 186041 : if (sym->attr.threadprivate
864 186041 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
865 151 : set_decl_tls_model (decl, decl_default_tls_model (decl));
866 :
867 186041 : gfc_finish_decl_attrs (decl, &sym->attr);
868 : }
869 :
870 :
871 : /* Allocate the lang-specific part of a decl. */
872 :
873 : void
874 106378 : gfc_allocate_lang_decl (tree decl)
875 : {
876 106378 : if (DECL_LANG_SPECIFIC (decl) == NULL)
877 100997 : DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> ();
878 106378 : }
879 :
880 :
881 : /* Determine order of two symbol declarations. */
882 :
883 : static bool
884 5719 : decl_order (gfc_symbol *sym1, gfc_symbol *sym2)
885 : {
886 5719 : if (sym1->decl_order > sym2->decl_order)
887 : return true;
888 : else
889 0 : return false;
890 : }
891 :
892 :
893 : /* Remember a symbol to generate initialization/cleanup code at function
894 : entry/exit. */
895 :
896 : static void
897 84457 : gfc_defer_symbol_init (gfc_symbol * sym)
898 : {
899 84457 : gfc_symbol *p;
900 84457 : gfc_symbol *last;
901 84457 : gfc_symbol *head;
902 :
903 : /* Don't add a symbol twice. */
904 84457 : if (sym->tlink)
905 : return;
906 :
907 78486 : last = head = sym->ns->proc_name;
908 78486 : p = last->tlink;
909 :
910 78486 : gfc_function_dependency (sym, head);
911 :
912 : /* Make sure that setup code for dummy variables which are used in the
913 : setup of other variables is generated first. */
914 78486 : if (sym->attr.dummy)
915 : {
916 : /* Find the first dummy arg seen after us, or the first non-dummy arg.
917 : This is a circular list, so don't go past the head. */
918 : while (p != head
919 16972 : && (!p->attr.dummy || decl_order (p, sym)))
920 : {
921 3359 : last = p;
922 3359 : p = p->tlink;
923 : }
924 : }
925 64873 : else if (sym->fn_result_dep)
926 : {
927 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
928 : function result (ie. proc_name = proc_name->result), make sure that the
929 : order in the tlink chain is such that the code appears in declaration
930 : order. This ensures that mutual dependencies between these symbols are
931 : respected. */
932 : while (p != head
933 228 : && (!p->attr.result || decl_order (sym, p)))
934 : {
935 162 : last = p;
936 162 : p = p->tlink;
937 : }
938 : }
939 : /* Insert in between last and p. */
940 78486 : last->tlink = sym;
941 78486 : sym->tlink = p;
942 : }
943 :
944 :
945 : /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the
946 : backend_decl for a module symbol, if it all ready exists. If the
947 : module gsymbol does not exist, it is created. If the symbol does
948 : not exist, it is added to the gsymbol namespace. Returns true if
949 : an existing backend_decl is found. */
950 :
951 : bool
952 14383 : gfc_get_module_backend_decl (gfc_symbol *sym)
953 : {
954 14383 : gfc_gsymbol *gsym;
955 14383 : gfc_symbol *s;
956 14383 : gfc_symtree *st;
957 :
958 14383 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
959 :
960 14383 : if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE))
961 : {
962 14383 : st = NULL;
963 14383 : s = NULL;
964 :
965 : /* Check for a symbol with the same name. */
966 384 : if (gsym)
967 13999 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
968 :
969 14383 : if (!s)
970 : {
971 602 : if (!gsym)
972 : {
973 384 : gsym = gfc_get_gsymbol (sym->module, false);
974 384 : gsym->type = GSYM_MODULE;
975 384 : gsym->ns = gfc_get_namespace (NULL, 0);
976 : }
977 :
978 602 : st = gfc_new_symtree (&gsym->ns->sym_root, sym->name);
979 602 : st->n.sym = sym;
980 602 : sym->refs++;
981 : }
982 13781 : else if (gfc_fl_struct (sym->attr.flavor))
983 : {
984 11058 : if (s && s->attr.flavor == FL_PROCEDURE)
985 : {
986 5934 : gfc_interface *intr;
987 5934 : gcc_assert (s->attr.generic);
988 6079 : for (intr = s->generic; intr; intr = intr->next)
989 6079 : if (gfc_fl_struct (intr->sym->attr.flavor))
990 : {
991 5934 : s = intr->sym;
992 5934 : break;
993 : }
994 : }
995 :
996 : /* Normally we can assume that s is a derived-type symbol since it
997 : shares a name with the derived-type sym. However if sym is a
998 : STRUCTURE, it may in fact share a name with any other basic type
999 : variable. If s is in fact of derived type then we can continue
1000 : looking for a duplicate type declaration. */
1001 11058 : if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED)
1002 : {
1003 0 : s = s->ts.u.derived;
1004 : }
1005 :
1006 11058 : if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl)
1007 : {
1008 25 : if (s->attr.flavor == FL_UNION)
1009 0 : s->backend_decl = gfc_get_union_type (s);
1010 : else
1011 25 : s->backend_decl = gfc_get_derived_type (s);
1012 : }
1013 11058 : gfc_copy_dt_decls_ifequal (s, sym, true);
1014 11058 : return true;
1015 : }
1016 2723 : else if (s->backend_decl)
1017 : {
1018 2710 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1019 543 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
1020 : true);
1021 2167 : else if (sym->ts.type == BT_CHARACTER)
1022 312 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
1023 2710 : sym->backend_decl = s->backend_decl;
1024 2710 : return true;
1025 : }
1026 : }
1027 : return false;
1028 : }
1029 :
1030 :
1031 : /* Create an array index type variable with function scope. */
1032 :
1033 : static tree
1034 46767 : create_index_var (const char * pfx, int nest)
1035 : {
1036 46767 : tree decl;
1037 :
1038 46767 : decl = gfc_create_var_np (gfc_array_index_type, pfx);
1039 46767 : if (nest)
1040 28 : gfc_add_decl_to_parent_function (decl);
1041 : else
1042 46739 : gfc_add_decl_to_function (decl);
1043 46767 : return decl;
1044 : }
1045 :
1046 :
1047 : /* Create variables to hold all the non-constant bits of info for a
1048 : descriptorless array. Remember these in the lang-specific part of the
1049 : type. */
1050 :
1051 : static void
1052 63622 : gfc_build_qualified_array (tree decl, gfc_symbol * sym)
1053 : {
1054 63622 : tree type;
1055 63622 : int dim;
1056 63622 : int nest;
1057 63622 : gfc_namespace* procns;
1058 63622 : symbol_attribute *array_attr;
1059 63622 : gfc_array_spec *as;
1060 63622 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1061 :
1062 63622 : type = TREE_TYPE (decl);
1063 63622 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1064 63622 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1065 :
1066 : /* We just use the descriptor, if there is one. */
1067 63622 : if (GFC_DESCRIPTOR_TYPE_P (type))
1068 : return;
1069 :
1070 47841 : gcc_assert (GFC_ARRAY_TYPE_P (type));
1071 47841 : procns = gfc_find_proc_namespace (sym->ns);
1072 95682 : nest = (procns->proc_name->backend_decl != current_function_decl)
1073 47841 : && !sym->attr.contained;
1074 :
1075 857 : if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB
1076 542 : && as->type != AS_ASSUMED_SHAPE
1077 48360 : && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE)
1078 : {
1079 519 : tree token;
1080 519 : tree token_type = build_qualified_type (pvoid_type_node,
1081 : TYPE_QUAL_RESTRICT);
1082 :
1083 519 : if (sym->module && (sym->attr.use_assoc
1084 28 : || sym->ns->proc_name->attr.flavor == FL_MODULE))
1085 : {
1086 33 : tree token_name
1087 33 : = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"),
1088 : IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym))));
1089 33 : token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name,
1090 : token_type);
1091 33 : if (sym->attr.use_assoc
1092 28 : || (sym->attr.host_assoc && sym->attr.used_in_submodule))
1093 7 : DECL_EXTERNAL (token) = 1;
1094 : else
1095 26 : TREE_STATIC (token) = 1;
1096 :
1097 33 : TREE_PUBLIC (token) = 1;
1098 :
1099 33 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
1100 : {
1101 0 : DECL_VISIBILITY (token) = VISIBILITY_HIDDEN;
1102 0 : DECL_VISIBILITY_SPECIFIED (token) = true;
1103 : }
1104 : }
1105 : else
1106 : {
1107 486 : token = gfc_create_var_np (token_type, "caf_token");
1108 486 : TREE_STATIC (token) = 1;
1109 : }
1110 :
1111 519 : GFC_TYPE_ARRAY_CAF_TOKEN (type) = token;
1112 519 : DECL_ARTIFICIAL (token) = 1;
1113 519 : DECL_NONALIASED (token) = 1;
1114 :
1115 519 : if (sym->module && !sym->attr.use_assoc)
1116 : {
1117 28 : module_htab_entry *mod
1118 28 : = cur_module ? cur_module : gfc_find_module (sym->module);
1119 28 : pushdecl (token);
1120 28 : DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl;
1121 28 : gfc_module_add_decl (mod, token);
1122 28 : }
1123 491 : else if (sym->attr.host_assoc
1124 491 : && TREE_CODE (DECL_CONTEXT (current_function_decl))
1125 : != TRANSLATION_UNIT_DECL)
1126 3 : gfc_add_decl_to_parent_function (token);
1127 : else
1128 488 : gfc_add_decl_to_function (token);
1129 : }
1130 :
1131 113855 : for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++)
1132 : {
1133 66014 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1134 : {
1135 521 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1136 521 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1137 : }
1138 : /* Don't try to use the unknown bound for assumed shape arrays. */
1139 66014 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1140 66014 : && (as->type != AS_ASSUMED_SIZE
1141 2123 : || dim < GFC_TYPE_ARRAY_RANK (type) - 1))
1142 : {
1143 19032 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1144 19032 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1145 : }
1146 :
1147 66014 : if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE)
1148 : {
1149 11332 : GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest);
1150 11332 : suppress_warning (GFC_TYPE_ARRAY_STRIDE (type, dim));
1151 : }
1152 : }
1153 48972 : for (dim = GFC_TYPE_ARRAY_RANK (type);
1154 48972 : dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++)
1155 : {
1156 1131 : if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE)
1157 : {
1158 114 : GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest);
1159 114 : suppress_warning (GFC_TYPE_ARRAY_LBOUND (type, dim));
1160 : }
1161 : /* Don't try to use the unknown ubound for the last coarray dimension. */
1162 1131 : if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE
1163 1131 : && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1)
1164 : {
1165 60 : GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest);
1166 60 : suppress_warning (GFC_TYPE_ARRAY_UBOUND (type, dim));
1167 : }
1168 : }
1169 47841 : if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE)
1170 : {
1171 8749 : GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type,
1172 : "offset");
1173 8749 : suppress_warning (GFC_TYPE_ARRAY_OFFSET (type));
1174 :
1175 8749 : if (nest)
1176 8 : gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type));
1177 : else
1178 8741 : gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type));
1179 : }
1180 :
1181 65316 : if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE && as->rank != 0
1182 65275 : && as->type != AS_ASSUMED_SIZE)
1183 : {
1184 15708 : GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest);
1185 15708 : suppress_warning (GFC_TYPE_ARRAY_SIZE (type));
1186 : }
1187 :
1188 47841 : if (POINTER_TYPE_P (type))
1189 : {
1190 21023 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type)));
1191 21023 : gcc_assert (TYPE_LANG_SPECIFIC (type)
1192 : == TYPE_LANG_SPECIFIC (TREE_TYPE (type)));
1193 21023 : type = TREE_TYPE (type);
1194 : }
1195 :
1196 47841 : if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type))
1197 : {
1198 15708 : tree size, range;
1199 :
1200 47124 : size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
1201 15708 : GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node);
1202 15708 : range = build_range_type (gfc_array_index_type, gfc_index_zero_node,
1203 : size);
1204 15708 : TYPE_DOMAIN (type) = range;
1205 15708 : layout_type (type);
1206 : }
1207 :
1208 86880 : if (TYPE_NAME (type) != NULL_TREE && as->rank > 0
1209 38579 : && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE
1210 85082 : && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1)))
1211 : {
1212 7347 : tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type));
1213 :
1214 7735 : for (dim = 0; dim < as->rank - 1; dim++)
1215 : {
1216 388 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1217 388 : gtype = TREE_TYPE (gtype);
1218 : }
1219 7347 : gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE);
1220 7347 : if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL)
1221 7347 : TYPE_NAME (type) = NULL_TREE;
1222 : }
1223 :
1224 47841 : if (TYPE_NAME (type) == NULL_TREE)
1225 : {
1226 16149 : tree gtype = TREE_TYPE (type), rtype, type_decl;
1227 :
1228 37126 : for (dim = as->rank - 1; dim >= 0; dim--)
1229 : {
1230 20977 : tree lbound, ubound;
1231 20977 : lbound = GFC_TYPE_ARRAY_LBOUND (type, dim);
1232 20977 : ubound = GFC_TYPE_ARRAY_UBOUND (type, dim);
1233 20977 : rtype = build_range_type (gfc_array_index_type, lbound, ubound);
1234 20977 : gtype = build_array_type (gtype, rtype);
1235 : /* Ensure the bound variables aren't optimized out at -O0.
1236 : For -O1 and above they often will be optimized out, but
1237 : can be tracked by VTA. Also set DECL_NAMELESS, so that
1238 : the artificial lbound.N or ubound.N DECL_NAME doesn't
1239 : end up in debug info. */
1240 20977 : if (lbound
1241 20977 : && VAR_P (lbound)
1242 521 : && DECL_ARTIFICIAL (lbound)
1243 21498 : && DECL_IGNORED_P (lbound))
1244 : {
1245 521 : if (DECL_NAME (lbound)
1246 521 : && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)),
1247 : "lbound") != 0)
1248 521 : DECL_NAMELESS (lbound) = 1;
1249 521 : DECL_IGNORED_P (lbound) = 0;
1250 : }
1251 20977 : if (ubound
1252 20589 : && VAR_P (ubound)
1253 19032 : && DECL_ARTIFICIAL (ubound)
1254 40009 : && DECL_IGNORED_P (ubound))
1255 : {
1256 19032 : if (DECL_NAME (ubound)
1257 19032 : && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)),
1258 : "ubound") != 0)
1259 19032 : DECL_NAMELESS (ubound) = 1;
1260 19032 : DECL_IGNORED_P (ubound) = 0;
1261 : }
1262 : }
1263 16149 : TYPE_NAME (type) = type_decl = build_decl (input_location,
1264 : TYPE_DECL, NULL, gtype);
1265 16149 : DECL_ORIGINAL_TYPE (type_decl) = gtype;
1266 : }
1267 : }
1268 :
1269 :
1270 : /* For some dummy arguments we don't use the actual argument directly.
1271 : Instead we create a local decl and use that. This allows us to perform
1272 : initialization, and construct full type information. */
1273 :
1274 : static tree
1275 25297 : gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy)
1276 : {
1277 25297 : tree decl;
1278 25297 : tree type;
1279 25297 : gfc_array_spec *as;
1280 25297 : symbol_attribute *array_attr;
1281 25297 : char *name;
1282 25297 : gfc_packed packed;
1283 25297 : int n;
1284 25297 : bool known_size;
1285 25297 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
1286 :
1287 : /* Use the array as and attr. */
1288 25297 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
1289 25297 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
1290 :
1291 : /* The dummy is returned for pointer, allocatable or assumed rank arrays.
1292 : For class arrays the information if sym is an allocatable or pointer
1293 : object needs to be checked explicitly (IS_CLASS_ARRAY can be false for
1294 : too many reasons to be of use here). */
1295 25297 : if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
1296 23425 : || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer)
1297 23425 : || array_attr->allocatable
1298 18351 : || (as && as->type == AS_ASSUMED_RANK))
1299 : return dummy;
1300 :
1301 : /* Add to list of variables if not a fake result variable.
1302 : These symbols are set on the symbol only, not on the class component. */
1303 14335 : if (sym->attr.result || sym->attr.dummy)
1304 13731 : gfc_defer_symbol_init (sym);
1305 :
1306 : /* For a class array the array descriptor is in the _data component, while
1307 : for a regular array the TREE_TYPE of the dummy is a pointer to the
1308 : descriptor. */
1309 14335 : type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy)
1310 : : TREE_TYPE (dummy));
1311 : /* type now is the array descriptor w/o any indirection. */
1312 14335 : gcc_assert (TREE_CODE (dummy) == PARM_DECL
1313 : && POINTER_TYPE_P (TREE_TYPE (dummy)));
1314 :
1315 : /* Do we know the element size? */
1316 14335 : known_size = sym->ts.type != BT_CHARACTER
1317 14335 : || INTEGER_CST_P (sym->ts.u.cl->backend_decl);
1318 :
1319 13449 : if (known_size && !GFC_DESCRIPTOR_TYPE_P (type))
1320 : {
1321 : /* For descriptorless arrays with known element size the actual
1322 : argument is sufficient. */
1323 6763 : gfc_build_qualified_array (dummy, sym);
1324 6763 : return dummy;
1325 : }
1326 :
1327 7572 : if (GFC_DESCRIPTOR_TYPE_P (type))
1328 : {
1329 : /* Create a descriptorless array pointer. */
1330 7203 : packed = PACKED_NO;
1331 :
1332 : /* Even when -frepack-arrays is used, symbols with TARGET attribute
1333 : are not repacked. */
1334 7203 : if (!flag_repack_arrays || sym->attr.target)
1335 : {
1336 7201 : if (as->type == AS_ASSUMED_SIZE)
1337 79 : packed = PACKED_FULL;
1338 : }
1339 : else
1340 : {
1341 2 : if (as->type == AS_EXPLICIT)
1342 : {
1343 3 : packed = PACKED_FULL;
1344 3 : for (n = 0; n < as->rank; n++)
1345 : {
1346 2 : if (!(as->upper[n]
1347 2 : && as->lower[n]
1348 2 : && as->upper[n]->expr_type == EXPR_CONSTANT
1349 2 : && as->lower[n]->expr_type == EXPR_CONSTANT))
1350 : {
1351 : packed = PACKED_PARTIAL;
1352 : break;
1353 : }
1354 : }
1355 : }
1356 : else
1357 : packed = PACKED_PARTIAL;
1358 : }
1359 :
1360 : /* For classarrays the element type is required, but
1361 : gfc_typenode_for_spec () returns the array descriptor. */
1362 7203 : type = is_classarray ? gfc_get_element_type (type)
1363 6299 : : gfc_typenode_for_spec (&sym->ts);
1364 7203 : type = gfc_get_nodesc_array_type (type, as, packed,
1365 7203 : !sym->attr.target);
1366 : }
1367 : else
1368 : {
1369 : /* We now have an expression for the element size, so create a fully
1370 : qualified type. Reset sym->backend decl or this will just return the
1371 : old type. */
1372 369 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1373 369 : sym->backend_decl = NULL_TREE;
1374 369 : type = gfc_sym_type (sym);
1375 369 : packed = PACKED_FULL;
1376 : }
1377 :
1378 7572 : ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0);
1379 7572 : decl = build_decl (input_location,
1380 : VAR_DECL, get_identifier (name), type);
1381 :
1382 7572 : DECL_ARTIFICIAL (decl) = 1;
1383 7572 : DECL_NAMELESS (decl) = 1;
1384 7572 : TREE_PUBLIC (decl) = 0;
1385 7572 : TREE_STATIC (decl) = 0;
1386 7572 : DECL_EXTERNAL (decl) = 0;
1387 :
1388 : /* Avoid uninitialized warnings for optional dummy arguments. */
1389 7572 : if ((sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.optional)
1390 7572 : || sym->attr.optional)
1391 804 : suppress_warning (decl);
1392 :
1393 : /* We should never get deferred shape arrays here. We used to because of
1394 : frontend bugs. */
1395 7572 : gcc_assert (as->type != AS_DEFERRED);
1396 :
1397 7572 : if (packed == PACKED_PARTIAL)
1398 1 : GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1;
1399 7571 : else if (packed == PACKED_FULL)
1400 448 : GFC_DECL_PACKED_ARRAY (decl) = 1;
1401 :
1402 7572 : gfc_build_qualified_array (decl, sym);
1403 :
1404 7572 : if (DECL_LANG_SPECIFIC (dummy))
1405 982 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy);
1406 : else
1407 6590 : gfc_allocate_lang_decl (decl);
1408 :
1409 7572 : GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy;
1410 :
1411 7572 : if (sym->ns->proc_name->backend_decl == current_function_decl
1412 518 : || sym->attr.contained)
1413 7564 : gfc_add_decl_to_function (decl);
1414 : else
1415 8 : gfc_add_decl_to_parent_function (decl);
1416 :
1417 : return decl;
1418 : }
1419 :
1420 : /* Return a constant or a variable to use as a string length. Does not
1421 : add the decl to the current scope. */
1422 :
1423 : static tree
1424 16016 : gfc_create_string_length (gfc_symbol * sym)
1425 : {
1426 16016 : gcc_assert (sym->ts.u.cl);
1427 16016 : gfc_conv_const_charlen (sym->ts.u.cl);
1428 :
1429 16016 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1430 : {
1431 3537 : tree length;
1432 3537 : const char *name;
1433 :
1434 : /* The string length variable shall be in static memory if it is either
1435 : explicitly SAVED, a module variable or with -fno-automatic. Only
1436 : relevant is "len=:" - otherwise, it is either a constant length or
1437 : it is an automatic variable. */
1438 7074 : bool static_length = sym->attr.save
1439 3360 : || sym->ns->proc_name->attr.flavor == FL_MODULE
1440 6897 : || (flag_max_stack_var_size == 0
1441 2 : && sym->ts.deferred && !sym->attr.dummy
1442 0 : && !sym->attr.result && !sym->attr.function);
1443 :
1444 : /* Also prefix the mangled name. We need to call GFC_PREFIX for static
1445 : variables as some systems do not support the "." in the assembler name.
1446 : For nonstatic variables, the "." does not appear in assembler. */
1447 3360 : if (static_length)
1448 : {
1449 177 : if (sym->module)
1450 54 : name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module,
1451 : sym->name);
1452 : else
1453 123 : name = gfc_get_string (GFC_PREFIX ("%s"), sym->name);
1454 : }
1455 3360 : else if (sym->module)
1456 0 : name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name);
1457 : else
1458 3360 : name = gfc_get_string (".%s", sym->name);
1459 :
1460 3537 : length = build_decl (input_location,
1461 : VAR_DECL, get_identifier (name),
1462 : gfc_charlen_type_node);
1463 3537 : DECL_ARTIFICIAL (length) = 1;
1464 3537 : TREE_USED (length) = 1;
1465 3537 : if (sym->ns->proc_name->tlink != NULL)
1466 3286 : gfc_defer_symbol_init (sym);
1467 :
1468 3537 : sym->ts.u.cl->backend_decl = length;
1469 :
1470 3537 : if (static_length)
1471 177 : TREE_STATIC (length) = 1;
1472 :
1473 3537 : if (sym->ns->proc_name->attr.flavor == FL_MODULE
1474 54 : && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used))
1475 54 : TREE_PUBLIC (length) = 1;
1476 : }
1477 :
1478 16016 : gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE);
1479 16016 : return sym->ts.u.cl->backend_decl;
1480 : }
1481 :
1482 : /* If a variable is assigned a label, we add another two auxiliary
1483 : variables. */
1484 :
1485 : static void
1486 66 : gfc_add_assign_aux_vars (gfc_symbol * sym)
1487 : {
1488 66 : tree addr;
1489 66 : tree length;
1490 66 : tree decl;
1491 :
1492 66 : gcc_assert (sym->backend_decl);
1493 :
1494 66 : decl = sym->backend_decl;
1495 66 : gfc_allocate_lang_decl (decl);
1496 66 : GFC_DECL_ASSIGN (decl) = 1;
1497 66 : length = build_decl (input_location,
1498 : VAR_DECL, create_tmp_var_name (sym->name),
1499 : gfc_charlen_type_node);
1500 66 : addr = build_decl (input_location,
1501 : VAR_DECL, create_tmp_var_name (sym->name),
1502 : pvoid_type_node);
1503 66 : gfc_finish_var_decl (length, sym);
1504 66 : gfc_finish_var_decl (addr, sym);
1505 : /* STRING_LENGTH is also used as flag. Less than -1 means that
1506 : ASSIGN_ADDR cannot be used. Equal -1 means that ASSIGN_ADDR is the
1507 : target label's address. Otherwise, value is the length of a format string
1508 : and ASSIGN_ADDR is its address. */
1509 66 : if (TREE_STATIC (length))
1510 1 : DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2);
1511 : else
1512 65 : gfc_defer_symbol_init (sym);
1513 :
1514 66 : GFC_DECL_STRING_LEN (decl) = length;
1515 66 : GFC_DECL_ASSIGN_ADDR (decl) = addr;
1516 66 : }
1517 :
1518 :
1519 : static void
1520 290390 : add_attributes_to_decl (tree *decl_p, const gfc_symbol *sym)
1521 : {
1522 290390 : unsigned id;
1523 290390 : tree list = NULL_TREE;
1524 290390 : symbol_attribute sym_attr = sym->attr;
1525 :
1526 3775070 : for (id = 0; id < EXT_ATTR_NUM; id++)
1527 3484680 : if (sym_attr.ext_attr & (1 << id) && ext_attr_list[id].middle_end_name)
1528 : {
1529 0 : tree ident = get_identifier (ext_attr_list[id].middle_end_name);
1530 0 : list = tree_cons (ident, NULL_TREE, list);
1531 : }
1532 :
1533 290390 : tree clauses = NULL_TREE;
1534 :
1535 290390 : if (sym_attr.oacc_routine_lop != OACC_ROUTINE_LOP_NONE)
1536 : {
1537 355 : omp_clause_code code;
1538 355 : switch (sym_attr.oacc_routine_lop)
1539 : {
1540 : case OACC_ROUTINE_LOP_GANG:
1541 : code = OMP_CLAUSE_GANG;
1542 : break;
1543 : case OACC_ROUTINE_LOP_WORKER:
1544 : code = OMP_CLAUSE_WORKER;
1545 : break;
1546 : case OACC_ROUTINE_LOP_VECTOR:
1547 : code = OMP_CLAUSE_VECTOR;
1548 : break;
1549 : case OACC_ROUTINE_LOP_SEQ:
1550 : code = OMP_CLAUSE_SEQ;
1551 : break;
1552 0 : case OACC_ROUTINE_LOP_NONE:
1553 0 : case OACC_ROUTINE_LOP_ERROR:
1554 0 : default:
1555 0 : gcc_unreachable ();
1556 : }
1557 355 : tree c = build_omp_clause (UNKNOWN_LOCATION, code);
1558 355 : OMP_CLAUSE_CHAIN (c) = clauses;
1559 355 : clauses = c;
1560 :
1561 355 : tree dims = oacc_build_routine_dims (clauses);
1562 355 : list = oacc_replace_fn_attrib_attr (list, dims);
1563 : }
1564 :
1565 290390 : if (sym_attr.oacc_routine_nohost)
1566 : {
1567 40 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_NOHOST);
1568 40 : OMP_CLAUSE_CHAIN (c) = clauses;
1569 40 : clauses = c;
1570 : }
1571 :
1572 : /* FIXME: 'declare_target_link' permits both any and host, but
1573 : will fail if one sets OMP_CLAUSE_DEVICE_TYPE_KIND. */
1574 290390 : if (sym_attr.omp_device_type != OMP_DEVICE_TYPE_UNSET
1575 415 : && !sym_attr.omp_declare_target_link
1576 407 : && !sym_attr.omp_declare_target_indirect /* implies 'any' */)
1577 : {
1578 361 : tree c = build_omp_clause (UNKNOWN_LOCATION, OMP_CLAUSE_DEVICE_TYPE);
1579 361 : switch (sym_attr.omp_device_type)
1580 : {
1581 5 : case OMP_DEVICE_TYPE_HOST:
1582 5 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_HOST;
1583 5 : break;
1584 4 : case OMP_DEVICE_TYPE_NOHOST:
1585 4 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_NOHOST;
1586 4 : break;
1587 352 : case OMP_DEVICE_TYPE_ANY:
1588 352 : OMP_CLAUSE_DEVICE_TYPE_KIND (c) = OMP_CLAUSE_DEVICE_TYPE_ANY;
1589 352 : break;
1590 0 : default:
1591 0 : gcc_unreachable ();
1592 : }
1593 361 : OMP_CLAUSE_CHAIN (c) = clauses;
1594 361 : clauses = c;
1595 : }
1596 :
1597 : /* Also check trans-common.cc when updating/removing the following;
1598 : also update f95.c's gfc_gnu_attributes. */
1599 290390 : if (sym_attr.omp_groupprivate)
1600 6 : gfc_error ("Sorry, OMP GROUPPRIVATE not implemented, "
1601 6 : "used by %qs declared at %L", sym->name, &sym->declared_at);
1602 290384 : else if (sym_attr.omp_declare_target_local)
1603 : /* Use 'else if' as groupprivate implies 'local'. */
1604 0 : gfc_error ("Sorry, OMP DECLARE TARGET with LOCAL clause not implemented, "
1605 0 : "used by %qs declared at %L", sym->name, &sym->declared_at);
1606 :
1607 290390 : bool has_declare = true;
1608 290390 : if (sym_attr.omp_declare_target_link
1609 290382 : || sym_attr.oacc_declare_link)
1610 9 : list = tree_cons (get_identifier ("omp declare target link"),
1611 : clauses, list);
1612 290381 : else if (sym_attr.omp_declare_target
1613 289502 : || sym_attr.oacc_declare_create
1614 289459 : || sym_attr.oacc_declare_copyin
1615 289449 : || sym_attr.oacc_declare_deviceptr
1616 289449 : || sym_attr.oacc_declare_device_resident)
1617 948 : list = tree_cons (get_identifier ("omp declare target"),
1618 : clauses, list);
1619 : else
1620 : has_declare = false;
1621 :
1622 290390 : if (sym_attr.omp_declare_target_indirect)
1623 46 : list = tree_cons (get_identifier ("omp declare target indirect"),
1624 : clauses, list);
1625 :
1626 290390 : decl_attributes (decl_p, list, 0);
1627 :
1628 290390 : if (has_declare
1629 957 : && VAR_P (*decl_p)
1630 411 : && sym->ns->proc_name->attr.flavor != FL_MODULE)
1631 : {
1632 150 : has_declare = false;
1633 618 : for (gfc_namespace* ns = sym->ns->contained; ns; ns = ns->sibling)
1634 471 : if (ns->proc_name->attr.omp_declare_target)
1635 : {
1636 : has_declare = true;
1637 : break;
1638 : }
1639 : }
1640 :
1641 957 : if (has_declare && VAR_P (*decl_p) && has_declare)
1642 : {
1643 : /* Add to offload_vars; get_create does so for omp_declare_target,
1644 : omp_declare_target_link requires manual work. */
1645 264 : gcc_assert (symtab_node::get (*decl_p) == 0);
1646 264 : symtab_node *node = symtab_node::get_create (*decl_p);
1647 264 : if (node != NULL && sym_attr.omp_declare_target_link)
1648 : {
1649 8 : node->offloadable = 1;
1650 8 : if (ENABLE_OFFLOADING)
1651 : {
1652 : g->have_offload = true;
1653 : if (is_a <varpool_node *> (node))
1654 : vec_safe_push (offload_vars, *decl_p);
1655 : }
1656 : }
1657 : }
1658 290390 : }
1659 :
1660 :
1661 : static void build_function_decl (gfc_symbol * sym, bool global);
1662 :
1663 :
1664 : /* Return the decl for a gfc_symbol, create it if it doesn't already
1665 : exist. */
1666 :
1667 : tree
1668 1852917 : gfc_get_symbol_decl (gfc_symbol * sym)
1669 : {
1670 1852917 : tree decl;
1671 1852917 : tree length = NULL_TREE;
1672 1852917 : int byref;
1673 1852917 : bool intrinsic_array_parameter = false;
1674 1852917 : bool fun_or_res;
1675 :
1676 1852917 : gcc_assert (sym->attr.referenced
1677 : || sym->attr.flavor == FL_PROCEDURE
1678 : || sym->attr.use_assoc
1679 : || sym->attr.used_in_submodule
1680 : || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY
1681 : || (sym->module && sym->attr.if_source != IFSRC_DECL
1682 : && sym->backend_decl));
1683 :
1684 330302 : if (sym->attr.dummy && sym->ns->proc_name->attr.is_bind_c
1685 1876900 : && is_CFI_desc (sym, NULL))
1686 : {
1687 15489 : gcc_assert (sym->backend_decl && (sym->ts.type != BT_CHARACTER
1688 : || sym->ts.u.cl->backend_decl));
1689 : return sym->backend_decl;
1690 : }
1691 :
1692 1837428 : if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function)
1693 235119 : byref = gfc_return_by_reference (sym->ns->proc_name);
1694 : else
1695 : byref = 0;
1696 :
1697 : /* Make sure that the vtab for the declared type is completed. */
1698 1837428 : if (sym->ts.type == BT_CLASS)
1699 : {
1700 86545 : gfc_component *c = CLASS_DATA (sym);
1701 86545 : if (!c->ts.u.derived->backend_decl)
1702 : {
1703 2548 : gfc_find_derived_vtab (c->ts.u.derived);
1704 2548 : gfc_get_derived_type (sym->ts.u.derived);
1705 : }
1706 : }
1707 :
1708 : /* PDT parameterized array components and string_lengths must have the
1709 : 'len' parameters substituted for the expressions appearing in the
1710 : declaration of the entity and memory allocated/deallocated. */
1711 1837428 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1712 327215 : && sym->param_list != NULL
1713 4652 : && (gfc_current_ns == sym->ns
1714 811 : || (gfc_current_ns == sym->ns->parent
1715 756 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1716 4238 : && !(sym->attr.use_assoc || sym->attr.dummy || sym->attr.result))
1717 3228 : gfc_defer_symbol_init (sym);
1718 :
1719 1837428 : if ((sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_comp)
1720 68 : && (gfc_current_ns == sym->ns
1721 10 : || (gfc_current_ns == sym->ns->parent
1722 9 : && gfc_current_ns->proc_name->attr.flavor != FL_MODULE))
1723 58 : && !(sym->attr.use_assoc || sym->attr.dummy || sym->attr.result))
1724 48 : gfc_defer_symbol_init (sym);
1725 :
1726 : /* Dummy PDT 'len' parameters should be checked when they are explicit. */
1727 1837428 : if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
1728 327215 : && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
1729 11516 : && sym->param_list != NULL
1730 454 : && sym->attr.dummy)
1731 189 : gfc_defer_symbol_init (sym);
1732 :
1733 : /* All deferred character length procedures need to retain the backend
1734 : decl, which is a pointer to the character length in the caller's
1735 : namespace and to declare a local character length. */
1736 1837428 : if (!byref && sym->attr.function
1737 19697 : && sym->ts.type == BT_CHARACTER
1738 1380 : && sym->ts.deferred
1739 268 : && sym->ts.u.cl->passed_length == NULL
1740 12 : && sym->ts.u.cl->backend_decl
1741 0 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1742 : {
1743 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1744 0 : gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)));
1745 0 : sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1746 : }
1747 :
1748 18030 : fun_or_res = byref && (sym->attr.result
1749 14177 : || (sym->attr.function && sym->ts.deferred));
1750 1837428 : if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res)
1751 : {
1752 : /* Return via extra parameter. */
1753 318082 : if (sym->attr.result && byref
1754 3853 : && !sym->backend_decl)
1755 : {
1756 2454 : sym->backend_decl =
1757 1227 : DECL_ARGUMENTS (sym->ns->proc_name->backend_decl);
1758 : /* For entry master function skip over the __entry
1759 : argument. */
1760 1227 : if (sym->ns->proc_name->attr.entry_master)
1761 83 : sym->backend_decl = DECL_CHAIN (sym->backend_decl);
1762 : }
1763 :
1764 : /* Automatic array indices in module procedures need the backend_decl
1765 : to be extracted from the procedure formal arglist. */
1766 318082 : if (sym->attr.dummy && !sym->backend_decl)
1767 : {
1768 12 : gfc_formal_arglist *f;
1769 18 : for (f = sym->ns->proc_name->formal; f; f = f->next)
1770 : {
1771 18 : gfc_symbol *fsym = f->sym;
1772 18 : if (strcmp (sym->name, fsym->name))
1773 6 : continue;
1774 12 : sym->backend_decl = fsym->backend_decl;
1775 12 : break;
1776 : }
1777 : }
1778 :
1779 : /* Dummy variables should already have been created. */
1780 318082 : gcc_assert (sym->backend_decl);
1781 :
1782 : /* However, the string length of deferred arrays must be set. */
1783 318082 : if (sym->ts.type == BT_CHARACTER
1784 29091 : && sym->ts.deferred
1785 3632 : && sym->attr.dimension
1786 1336 : && sym->attr.allocatable)
1787 530 : gfc_defer_symbol_init (sym);
1788 :
1789 318082 : if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS)
1790 10079 : GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1;
1791 :
1792 : /* Create a character length variable. */
1793 318082 : if (sym->ts.type == BT_CHARACTER)
1794 : {
1795 : /* For a deferred dummy, make a new string length variable. */
1796 29091 : if (sym->ts.deferred
1797 3632 : &&
1798 3632 : (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl))
1799 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1800 :
1801 29091 : if (sym->ts.deferred && byref)
1802 : {
1803 : /* The string length of a deferred char array is stored in the
1804 : parameter at sym->ts.u.cl->backend_decl as a reference and
1805 : marked as a result. Exempt this variable from generating a
1806 : temporary for it. */
1807 775 : if (sym->attr.result)
1808 : {
1809 : /* We need to insert a indirect ref for param decls. */
1810 688 : if (sym->ts.u.cl->backend_decl
1811 688 : && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)
1812 : {
1813 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1814 0 : sym->ts.u.cl->backend_decl =
1815 0 : build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1816 : }
1817 : }
1818 : /* For all other parameters make sure, that they are copied so
1819 : that the value and any modifications are local to the routine
1820 : by generating a temporary variable. */
1821 87 : else if (sym->attr.function
1822 75 : && sym->ts.u.cl->passed_length == NULL
1823 0 : && sym->ts.u.cl->backend_decl)
1824 : {
1825 0 : sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl;
1826 0 : if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length)))
1827 0 : sym->ts.u.cl->backend_decl
1828 0 : = build_fold_indirect_ref (sym->ts.u.cl->backend_decl);
1829 : else
1830 0 : sym->ts.u.cl->backend_decl = NULL_TREE;
1831 : }
1832 : }
1833 :
1834 29091 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
1835 1 : length = gfc_create_string_length (sym);
1836 : else
1837 29090 : length = sym->ts.u.cl->backend_decl;
1838 29091 : if (VAR_P (length) && DECL_FILE_SCOPE_P (length))
1839 : {
1840 : /* Add the string length to the same context as the symbol. */
1841 695 : if (DECL_CONTEXT (length) == NULL_TREE)
1842 : {
1843 695 : if (sym->backend_decl == current_function_decl
1844 695 : || (DECL_CONTEXT (sym->backend_decl)
1845 : == current_function_decl))
1846 694 : gfc_add_decl_to_function (length);
1847 : else
1848 1 : gfc_add_decl_to_parent_function (length);
1849 : }
1850 :
1851 695 : gcc_assert (sym->backend_decl == current_function_decl
1852 : ? DECL_CONTEXT (length) == current_function_decl
1853 : : (DECL_CONTEXT (sym->backend_decl)
1854 : == DECL_CONTEXT (length)));
1855 :
1856 695 : gfc_defer_symbol_init (sym);
1857 : }
1858 : }
1859 :
1860 : /* Use a copy of the descriptor for dummy arrays. */
1861 318082 : if ((sym->attr.dimension || sym->attr.codimension)
1862 109634 : && !TREE_USED (sym->backend_decl))
1863 : {
1864 20178 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1865 : /* Prevent the dummy from being detected as unused if it is copied. */
1866 20178 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1867 5695 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1868 20178 : sym->backend_decl = decl;
1869 : }
1870 :
1871 : /* Returning the descriptor for dummy class arrays is hazardous, because
1872 : some caller is expecting an expression to apply the component refs to.
1873 : Therefore the descriptor is only created and stored in
1874 : sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then
1875 : responsible to extract it from there, when the descriptor is
1876 : desired. */
1877 27512 : if (IS_CLASS_COARRAY_OR_ARRAY (sym)
1878 328569 : && (!DECL_LANG_SPECIFIC (sym->backend_decl)
1879 8057 : || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl)))
1880 : {
1881 4312 : decl = gfc_build_dummy_array_decl (sym, sym->backend_decl);
1882 : /* Prevent the dummy from being detected as unused if it is copied. */
1883 4312 : if (sym->backend_decl != NULL && decl != sym->backend_decl)
1884 904 : DECL_ARTIFICIAL (sym->backend_decl) = 1;
1885 4312 : sym->backend_decl = decl;
1886 : }
1887 :
1888 318082 : TREE_USED (sym->backend_decl) = 1;
1889 318082 : if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1890 6 : gfc_add_assign_aux_vars (sym);
1891 :
1892 318082 : if (sym->ts.type == BT_CLASS && sym->backend_decl
1893 27512 : && !IS_CLASS_COARRAY_OR_ARRAY (sym))
1894 17025 : GFC_DECL_CLASS (sym->backend_decl) = 1;
1895 :
1896 318082 : return sym->backend_decl;
1897 : }
1898 :
1899 16053 : if (sym->result == sym && sym->attr.assign
1900 1519351 : && GFC_DECL_ASSIGN (sym->backend_decl) == 0)
1901 1 : gfc_add_assign_aux_vars (sym);
1902 :
1903 1519346 : if (sym->backend_decl)
1904 : return sym->backend_decl;
1905 :
1906 : /* Special case for array-valued named constants from intrinsic
1907 : procedures; those are inlined. */
1908 200151 : if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER
1909 141 : && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV
1910 141 : || sym->from_intmod == INTMOD_ISO_C_BINDING))
1911 200151 : intrinsic_array_parameter = true;
1912 :
1913 : /* If use associated compilation, use the module
1914 : declaration. */
1915 200151 : if ((sym->attr.flavor == FL_VARIABLE
1916 16204 : || sym->attr.flavor == FL_PARAMETER)
1917 185509 : && (sym->attr.use_assoc || sym->attr.used_in_submodule)
1918 2856 : && !intrinsic_array_parameter
1919 2847 : && sym->module
1920 202998 : && gfc_get_module_backend_decl (sym))
1921 : {
1922 2710 : if (sym->ts.type == BT_CLASS && sym->backend_decl)
1923 39 : GFC_DECL_CLASS(sym->backend_decl) = 1;
1924 2710 : return sym->backend_decl;
1925 : }
1926 :
1927 197441 : if (sym->attr.flavor == FL_PROCEDURE)
1928 : {
1929 : /* Catch functions. Only used for actual parameters,
1930 : procedure pointers and procptr initialization targets. */
1931 14516 : if (sym->attr.use_assoc
1932 13675 : || sym->attr.used_in_submodule
1933 13669 : || sym->attr.intrinsic
1934 12364 : || sym->attr.if_source != IFSRC_DECL)
1935 : {
1936 3181 : decl = gfc_get_extern_function_decl (sym);
1937 : }
1938 : else
1939 : {
1940 11335 : if (!sym->backend_decl)
1941 11335 : build_function_decl (sym, false);
1942 11335 : decl = sym->backend_decl;
1943 : }
1944 14516 : return decl;
1945 : }
1946 :
1947 182925 : if (sym->ts.type == BT_UNKNOWN)
1948 0 : gfc_fatal_error ("%s at %L has no default type", sym->name,
1949 : &sym->declared_at);
1950 :
1951 182925 : if (sym->attr.intrinsic)
1952 0 : gfc_internal_error ("intrinsic variable which isn't a procedure");
1953 :
1954 : /* Create string length decl first so that they can be used in the
1955 : type declaration. For associate names, the target character
1956 : length is used. Set 'length' to a constant so that if the
1957 : string length is a variable, it is not finished a second time. */
1958 182925 : if (sym->ts.type == BT_CHARACTER)
1959 : {
1960 16030 : if (sym->attr.associate_var
1961 1803 : && sym->ts.deferred
1962 347 : && sym->assoc && sym->assoc->target
1963 347 : && ((sym->assoc->target->expr_type == EXPR_VARIABLE
1964 230 : && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER)
1965 304 : || sym->assoc->target->expr_type != EXPR_VARIABLE))
1966 160 : sym->ts.u.cl->backend_decl = NULL_TREE;
1967 :
1968 16030 : if (sym->attr.associate_var
1969 1803 : && sym->ts.u.cl->backend_decl
1970 639 : && (VAR_P (sym->ts.u.cl->backend_decl)
1971 374 : || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL))
1972 313 : length = gfc_index_zero_node;
1973 : else
1974 15717 : length = gfc_create_string_length (sym);
1975 : }
1976 :
1977 : /* Create the decl for the variable. */
1978 182925 : decl = build_decl (gfc_get_location (&sym->declared_at),
1979 : VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym));
1980 :
1981 : /* Symbols from modules should have their assembler names mangled.
1982 : This is done here rather than in gfc_finish_var_decl because it
1983 : is different for string length variables. */
1984 182925 : if (sym->module || sym->fn_result_spec)
1985 : {
1986 18639 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
1987 18639 : if (sym->attr.use_assoc && !intrinsic_array_parameter)
1988 134 : DECL_IGNORED_P (decl) = 1;
1989 : }
1990 :
1991 182925 : if (sym->attr.select_type_temporary)
1992 : {
1993 5773 : DECL_ARTIFICIAL (decl) = 1;
1994 5773 : DECL_IGNORED_P (decl) = 1;
1995 : }
1996 :
1997 182925 : if (sym->attr.dimension || sym->attr.codimension)
1998 : {
1999 : /* Create variables to hold the non-constant bits of array info. */
2000 49033 : gfc_build_qualified_array (decl, sym);
2001 :
2002 49033 : if (sym->attr.contiguous
2003 48964 : || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer))
2004 44273 : GFC_DECL_PACKED_ARRAY (decl) = 1;
2005 : }
2006 :
2007 : /* Remember this variable for allocation/cleanup. */
2008 134356 : if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension
2009 131541 : || (sym->ts.type == BT_CLASS &&
2010 4894 : (CLASS_DATA (sym)->attr.dimension
2011 2749 : || CLASS_DATA (sym)->attr.allocatable))
2012 127936 : || (sym->ts.type == BT_DERIVED
2013 29758 : && (sym->ts.u.derived->attr.alloc_comp
2014 23076 : || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save
2015 5378 : && !sym->ns->proc_name->attr.is_main_program
2016 2238 : && gfc_is_finalizable (sym->ts.u.derived, NULL))))
2017 : /* This applies a derived type default initializer. */
2018 303924 : || (sym->ts.type == BT_DERIVED
2019 22821 : && sym->attr.save == SAVE_NONE
2020 6715 : && !sym->attr.data
2021 6666 : && !sym->attr.allocatable
2022 6666 : && (sym->value && !sym->ns->proc_name->attr.is_main_program)
2023 560 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)))
2024 62486 : gfc_defer_symbol_init (sym);
2025 :
2026 : /* Set the vptr of unlimited polymorphic pointer variables so that
2027 : they do not cause segfaults in select type, when the selector
2028 : is an intrinsic type. Arrays are captured above. */
2029 182925 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
2030 1128 : && CLASS_DATA (sym)->attr.class_pointer
2031 692 : && !CLASS_DATA (sym)->attr.dimension && !sym->attr.dummy
2032 303 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc)
2033 172 : gfc_defer_symbol_init (sym);
2034 :
2035 182925 : if (sym->ts.type == BT_CHARACTER
2036 16030 : && sym->attr.allocatable
2037 1932 : && !sym->attr.dimension
2038 1004 : && sym->ts.u.cl && sym->ts.u.cl->length
2039 198 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
2040 27 : gfc_defer_symbol_init (sym);
2041 :
2042 : /* Associate names can use the hidden string length variable
2043 : of their associated target. */
2044 182925 : if (sym->ts.type == BT_CHARACTER
2045 16030 : && TREE_CODE (length) != INTEGER_CST
2046 3332 : && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF)
2047 : {
2048 3272 : length = fold_convert (gfc_charlen_type_node, length);
2049 3272 : gfc_finish_var_decl (length, sym);
2050 3272 : if (!sym->attr.associate_var
2051 2234 : && VAR_P (length)
2052 2234 : && sym->value && sym->value->expr_type != EXPR_NULL
2053 6 : && sym->value->ts.u.cl->length)
2054 : {
2055 6 : gfc_expr *len = sym->value->ts.u.cl->length;
2056 6 : DECL_INITIAL (length) = gfc_conv_initializer (len, &len->ts,
2057 6 : TREE_TYPE (length),
2058 : false, false, false);
2059 6 : DECL_INITIAL (length) = fold_convert (gfc_charlen_type_node,
2060 : DECL_INITIAL (length));
2061 6 : }
2062 : else
2063 3266 : gcc_assert (!sym->value || sym->value->expr_type == EXPR_NULL);
2064 : }
2065 :
2066 182925 : gfc_finish_var_decl (decl, sym);
2067 :
2068 182925 : if (sym->ts.type == BT_CHARACTER)
2069 : /* Character variables need special handling. */
2070 16030 : gfc_allocate_lang_decl (decl);
2071 :
2072 182925 : if (sym->assoc && sym->attr.subref_array_pointer)
2073 392 : sym->attr.pointer = 1;
2074 :
2075 182925 : if (sym->attr.pointer && sym->attr.dimension
2076 4927 : && !sym->ts.deferred
2077 4638 : && !(sym->attr.select_type_temporary
2078 1106 : && !sym->attr.subref_array_pointer))
2079 3682 : GFC_DECL_PTR_ARRAY_P (decl) = 1;
2080 :
2081 182925 : if (sym->ts.type == BT_CLASS)
2082 4894 : GFC_DECL_CLASS(decl) = 1;
2083 :
2084 182925 : sym->backend_decl = decl;
2085 :
2086 182925 : if (sym->attr.assign)
2087 59 : gfc_add_assign_aux_vars (sym);
2088 :
2089 182925 : if (intrinsic_array_parameter)
2090 : {
2091 9 : TREE_STATIC (decl) = 1;
2092 9 : DECL_EXTERNAL (decl) = 0;
2093 : }
2094 :
2095 182925 : if (TREE_STATIC (decl)
2096 39965 : && !(sym->attr.use_assoc && !intrinsic_array_parameter)
2097 39965 : && (sym->attr.save || sym->ns->proc_name->attr.is_main_program
2098 1524 : || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl))
2099 1485 : || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE)
2100 39912 : && (flag_coarray != GFC_FCOARRAY_LIB
2101 2147 : || !sym->attr.codimension || sym->attr.allocatable)
2102 222489 : && !(IS_PDT (sym) || IS_CLASS_PDT (sym)))
2103 : {
2104 : /* Add static initializer. For procedures, it is only needed if
2105 : SAVE is specified otherwise they need to be reinitialized
2106 : every time the procedure is entered. The TREE_STATIC is
2107 : in this case due to -fmax-stack-var-size=. */
2108 :
2109 39001 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2110 39001 : TREE_TYPE (decl), sym->attr.dimension
2111 39001 : || (sym->attr.codimension
2112 38 : && sym->attr.allocatable),
2113 38474 : sym->attr.pointer || sym->attr.allocatable
2114 38058 : || sym->ts.type == BT_CLASS,
2115 39001 : sym->attr.proc_pointer);
2116 : }
2117 :
2118 182925 : if (!TREE_STATIC (decl)
2119 142960 : && POINTER_TYPE_P (TREE_TYPE (decl))
2120 19064 : && !sym->attr.pointer
2121 13109 : && !sym->attr.allocatable
2122 10869 : && !sym->attr.proc_pointer
2123 193794 : && !sym->attr.select_type_temporary)
2124 8316 : DECL_BY_REFERENCE (decl) = 1;
2125 :
2126 182925 : if (sym->attr.associate_var)
2127 7434 : GFC_DECL_ASSOCIATE_VAR_P (decl) = 1;
2128 :
2129 : /* We only longer mark __def_init as read-only if it actually has an
2130 : initializer, it does not needlessly take up space in the
2131 : read-only section and can go into the BSS instead, see PR 84487.
2132 : Marking this as artificial means that OpenMP will treat this as
2133 : predetermined shared. */
2134 :
2135 182925 : bool def_init = startswith (sym->name, "__def_init");
2136 :
2137 182925 : if (sym->attr.vtab || def_init)
2138 : {
2139 18731 : DECL_ARTIFICIAL (decl) = 1;
2140 18731 : if (def_init && sym->value)
2141 3728 : TREE_READONLY (decl) = 1;
2142 : }
2143 :
2144 : /* Add attributes to variables. Functions are handled elsewhere. */
2145 182925 : add_attributes_to_decl (&decl, sym);
2146 :
2147 182925 : if (sym->ts.deferred && VAR_P (length))
2148 1886 : decl_attributes (&length, DECL_ATTRIBUTES (decl), 0);
2149 :
2150 182925 : return decl;
2151 : }
2152 :
2153 :
2154 : /* Substitute a temporary variable in place of the real one. */
2155 :
2156 : void
2157 5975 : gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save)
2158 : {
2159 5975 : save->attr = sym->attr;
2160 5975 : save->decl = sym->backend_decl;
2161 :
2162 5975 : gfc_clear_attr (&sym->attr);
2163 5975 : sym->attr.referenced = 1;
2164 5975 : sym->attr.flavor = FL_VARIABLE;
2165 :
2166 5975 : sym->backend_decl = decl;
2167 5975 : }
2168 :
2169 :
2170 : /* Restore the original variable. */
2171 :
2172 : void
2173 5975 : gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save)
2174 : {
2175 5975 : sym->attr = save->attr;
2176 5975 : sym->backend_decl = save->decl;
2177 5975 : }
2178 :
2179 :
2180 : /* Declare a procedure pointer. */
2181 :
2182 : static tree
2183 719 : get_proc_pointer_decl (gfc_symbol *sym)
2184 : {
2185 719 : tree decl;
2186 :
2187 719 : if (sym->module || sym->fn_result_spec)
2188 : {
2189 149 : const char *name;
2190 149 : gfc_gsymbol *gsym;
2191 :
2192 149 : name = mangled_identifier (sym);
2193 149 : gsym = gfc_find_gsymbol (gfc_gsym_root, name);
2194 149 : if (gsym != NULL)
2195 : {
2196 79 : gfc_symbol *s;
2197 79 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2198 79 : if (s && s->backend_decl)
2199 79 : return s->backend_decl;
2200 : }
2201 : }
2202 :
2203 640 : decl = sym->backend_decl;
2204 640 : if (decl)
2205 : return decl;
2206 :
2207 640 : decl = build_decl (input_location,
2208 : VAR_DECL, get_identifier (sym->name),
2209 : build_pointer_type (gfc_get_function_type (sym)));
2210 :
2211 640 : if (sym->module)
2212 : {
2213 : /* Apply name mangling. */
2214 70 : gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym));
2215 70 : if (sym->attr.use_assoc)
2216 0 : DECL_IGNORED_P (decl) = 1;
2217 : }
2218 :
2219 640 : if ((sym->ns->proc_name
2220 640 : && sym->ns->proc_name->backend_decl == current_function_decl)
2221 82 : || sym->attr.contained
2222 82 : || (sym->ns->proc_name
2223 82 : && sym->ns->proc_name->attr.flavor == FL_LABEL))
2224 : /* The last condition handles BLOCK constructs: the proc_name has
2225 : FL_LABEL flavor and its backend_decl is not set, but the proc pointer
2226 : belongs to the enclosing function (current_function_decl). */
2227 564 : gfc_add_decl_to_function (decl);
2228 76 : else if (sym->ns->proc_name->attr.flavor != FL_MODULE)
2229 6 : gfc_add_decl_to_parent_function (decl);
2230 :
2231 640 : sym->backend_decl = decl;
2232 :
2233 : /* If a variable is USE associated, it's always external. */
2234 640 : if (sym->attr.use_assoc)
2235 : {
2236 0 : DECL_EXTERNAL (decl) = 1;
2237 0 : TREE_PUBLIC (decl) = 1;
2238 : }
2239 640 : else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE)
2240 : {
2241 : /* This is the declaration of a module variable. */
2242 70 : TREE_PUBLIC (decl) = 1;
2243 70 : if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used)
2244 : {
2245 8 : DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN;
2246 8 : DECL_VISIBILITY_SPECIFIED (decl) = true;
2247 : }
2248 70 : TREE_STATIC (decl) = 1;
2249 : }
2250 :
2251 640 : if (!sym->attr.use_assoc
2252 640 : && (sym->attr.save != SAVE_NONE || sym->attr.data
2253 497 : || (sym->value && sym->ns->proc_name->attr.is_main_program)))
2254 143 : TREE_STATIC (decl) = 1;
2255 :
2256 640 : if (TREE_STATIC (decl) && sym->value)
2257 : {
2258 : /* Add static initializer. */
2259 103 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
2260 103 : TREE_TYPE (decl),
2261 103 : sym->attr.dimension,
2262 : false, true);
2263 : }
2264 :
2265 640 : add_attributes_to_decl (&decl, sym);
2266 :
2267 : /* Handle threadprivate procedure pointers. */
2268 640 : if (sym->attr.threadprivate
2269 640 : && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
2270 12 : set_decl_tls_model (decl, decl_default_tls_model (decl));
2271 :
2272 640 : return decl;
2273 : }
2274 :
2275 : static void
2276 : create_function_arglist (gfc_symbol *sym);
2277 :
2278 : /* Get a basic decl for an external function. */
2279 :
2280 : tree
2281 37146 : gfc_get_extern_function_decl (gfc_symbol * sym, gfc_actual_arglist *actual_args,
2282 : const char *fnspec)
2283 : {
2284 37146 : tree type;
2285 37146 : tree fndecl;
2286 37146 : gfc_expr e;
2287 37146 : gfc_intrinsic_sym *isym;
2288 37146 : gfc_expr argexpr;
2289 37146 : char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */
2290 37146 : tree name;
2291 37146 : tree mangled_name;
2292 37146 : gfc_gsymbol *gsym;
2293 :
2294 37146 : if (sym->backend_decl)
2295 : return sym->backend_decl;
2296 :
2297 : /* We should never be creating external decls for alternate entry points.
2298 : The procedure may be an alternate entry point, but we don't want/need
2299 : to know that. */
2300 37146 : gcc_assert (!(sym->attr.entry || sym->attr.entry_master));
2301 :
2302 37146 : if (sym->attr.proc_pointer)
2303 719 : return get_proc_pointer_decl (sym);
2304 :
2305 : /* See if this is an external procedure from the same file. If so,
2306 : return the backend_decl. If we are looking at a BIND(C)
2307 : procedure and the symbol is not BIND(C), or vice versa, we
2308 : haven't found the right procedure. */
2309 :
2310 36427 : if (sym->binding_label)
2311 : {
2312 2620 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label);
2313 2620 : if (gsym && !gsym->bind_c)
2314 : gsym = NULL;
2315 : }
2316 33807 : else if (sym->module == NULL)
2317 : {
2318 20090 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name);
2319 20090 : if (gsym && gsym->bind_c)
2320 : gsym = NULL;
2321 : }
2322 : else
2323 : {
2324 : /* Procedure from a different module. */
2325 : gsym = NULL;
2326 : }
2327 :
2328 11068 : if (gsym && !gsym->defined)
2329 : gsym = NULL;
2330 :
2331 : /* This can happen because of C binding. */
2332 7904 : if (gsym && gsym->ns && gsym->ns->proc_name
2333 7904 : && gsym->ns->proc_name->attr.flavor == FL_MODULE)
2334 557 : goto module_sym;
2335 :
2336 35870 : if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL)
2337 25942 : && !sym->backend_decl
2338 25942 : && gsym && gsym->ns
2339 7347 : && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION))
2340 7347 : && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic))
2341 : {
2342 7347 : if (!gsym->ns->proc_name->backend_decl)
2343 : {
2344 : /* By construction, the external function cannot be
2345 : a contained procedure. */
2346 775 : location_t old_loc = input_location;
2347 775 : push_cfun (NULL);
2348 :
2349 775 : gfc_create_function_decl (gsym->ns, true);
2350 :
2351 775 : pop_cfun ();
2352 775 : input_location = old_loc;
2353 : }
2354 :
2355 : /* If the namespace has entries, the proc_name is the
2356 : entry master. Find the entry and use its backend_decl.
2357 : otherwise, use the proc_name backend_decl. */
2358 7347 : if (gsym->ns->entries)
2359 : {
2360 : gfc_entry_list *entry = gsym->ns->entries;
2361 :
2362 1409 : for (; entry; entry = entry->next)
2363 : {
2364 1409 : if (strcmp (gsym->name, entry->sym->name) == 0)
2365 : {
2366 859 : sym->backend_decl = entry->sym->backend_decl;
2367 859 : break;
2368 : }
2369 : }
2370 : }
2371 : else
2372 6488 : sym->backend_decl = gsym->ns->proc_name->backend_decl;
2373 :
2374 7347 : if (sym->backend_decl)
2375 : {
2376 : /* Avoid problems of double deallocation of the backend declaration
2377 : later in gfc_trans_use_stmts; cf. PR 45087. */
2378 7347 : if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc)
2379 0 : sym->attr.use_assoc = 0;
2380 :
2381 7347 : return sym->backend_decl;
2382 : }
2383 : }
2384 :
2385 : /* See if this is a module procedure from the same file. If so,
2386 : return the backend_decl. */
2387 28523 : if (sym->module)
2388 14599 : gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module);
2389 :
2390 29080 : module_sym:
2391 29080 : if (gsym && gsym->ns
2392 11749 : && (gsym->type == GSYM_MODULE
2393 557 : || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE)))
2394 : {
2395 11749 : gfc_symbol *s;
2396 :
2397 11749 : s = NULL;
2398 11749 : if (gsym->type == GSYM_MODULE)
2399 11192 : gfc_find_symbol (sym->name, gsym->ns, 0, &s);
2400 : else
2401 557 : gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s);
2402 :
2403 11749 : if (s && s->backend_decl)
2404 : {
2405 9716 : if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS)
2406 1217 : gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived,
2407 : true);
2408 8499 : else if (sym->ts.type == BT_CHARACTER)
2409 423 : sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl;
2410 9716 : sym->backend_decl = s->backend_decl;
2411 9716 : return sym->backend_decl;
2412 : }
2413 : }
2414 :
2415 19364 : if (sym->attr.intrinsic)
2416 : {
2417 : /* Call the resolution function to get the actual name. This is
2418 : a nasty hack which relies on the resolution functions only looking
2419 : at the first argument. We pass NULL for the second argument
2420 : otherwise things like AINT get confused. */
2421 1306 : isym = gfc_find_function (sym->name);
2422 1306 : gcc_assert (isym->resolve.f0 != NULL);
2423 :
2424 1306 : memset (&e, 0, sizeof (e));
2425 1306 : e.expr_type = EXPR_FUNCTION;
2426 1306 : e.value.function.isym = isym;
2427 :
2428 1306 : memset (&argexpr, 0, sizeof (argexpr));
2429 1306 : gcc_assert (isym->formal);
2430 1306 : argexpr.ts = isym->formal->ts;
2431 :
2432 1306 : if (isym->formal->next == NULL)
2433 1057 : isym->resolve.f1 (&e, &argexpr);
2434 : else
2435 : {
2436 249 : if (isym->formal->next->next == NULL)
2437 233 : isym->resolve.f2 (&e, &argexpr, NULL);
2438 : else
2439 : {
2440 16 : if (isym->formal->next->next->next == NULL)
2441 0 : isym->resolve.f3 (&e, &argexpr, NULL, NULL);
2442 : else
2443 : {
2444 : /* All specific intrinsics take less than 5 arguments. */
2445 16 : gcc_assert (isym->formal->next->next->next->next == NULL);
2446 16 : isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL);
2447 : }
2448 : }
2449 : }
2450 :
2451 1306 : if (flag_f2c
2452 438 : && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind)
2453 300 : || e.ts.type == BT_COMPLEX))
2454 : {
2455 : /* Specific which needs a different implementation if f2c
2456 : calling conventions are used. */
2457 240 : sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name);
2458 : }
2459 : else
2460 1066 : sprintf (s, "_gfortran_specific%s", e.value.function.name);
2461 :
2462 1306 : name = get_identifier (s);
2463 1306 : mangled_name = name;
2464 : }
2465 : else
2466 : {
2467 18058 : name = gfc_sym_identifier (sym);
2468 18058 : mangled_name = gfc_sym_mangled_function_id (sym);
2469 : }
2470 :
2471 19364 : type = gfc_get_function_type (sym, actual_args, fnspec);
2472 :
2473 19364 : fndecl = build_decl (gfc_get_location (&sym->declared_at),
2474 : FUNCTION_DECL, name, type);
2475 :
2476 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2477 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2478 : the opposite of declaring a function as static in C). */
2479 19364 : DECL_EXTERNAL (fndecl) = 1;
2480 19364 : TREE_PUBLIC (fndecl) = 1;
2481 :
2482 19364 : add_attributes_to_decl (&fndecl, sym);
2483 :
2484 19364 : gfc_set_decl_assembler_name (fndecl, mangled_name);
2485 :
2486 : /* Set the context of this decl. */
2487 19364 : if (0 && sym->ns && sym->ns->proc_name)
2488 : {
2489 : /* TODO: Add external decls to the appropriate scope. */
2490 : DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl;
2491 : }
2492 : else
2493 : {
2494 : /* Global declaration, e.g. intrinsic subroutine. */
2495 19364 : DECL_CONTEXT (fndecl) = NULL_TREE;
2496 : }
2497 :
2498 : /* Set attributes for PURE functions. A call to PURE function in the
2499 : Fortran 95 sense is both pure and without side effects in the C
2500 : sense. */
2501 19364 : if (sym->attr.pure || sym->attr.implicit_pure)
2502 : {
2503 2104 : if (sym->attr.function && !gfc_return_by_reference (sym))
2504 1886 : DECL_PURE_P (fndecl) = 1;
2505 : /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT)
2506 : parameters and don't use alternate returns (is this
2507 : allowed?). In that case, calls to them are meaningless, and
2508 : can be optimized away. See also in build_function_decl(). */
2509 2104 : TREE_SIDE_EFFECTS (fndecl) = 0;
2510 : }
2511 :
2512 : /* Mark non-returning functions. */
2513 19364 : if (sym->attr.noreturn || sym->attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2514 112 : TREE_THIS_VOLATILE(fndecl) = 1;
2515 :
2516 19364 : sym->backend_decl = fndecl;
2517 :
2518 19364 : if (DECL_CONTEXT (fndecl) == NULL_TREE)
2519 19364 : pushdecl_top_level (fndecl);
2520 :
2521 19364 : if (sym->formal_ns
2522 17229 : && sym->formal_ns->proc_name == sym)
2523 : {
2524 17229 : if (sym->formal_ns->omp_declare_simd)
2525 15 : gfc_trans_omp_declare_simd (sym->formal_ns);
2526 17229 : if (flag_openmp)
2527 : {
2528 : // We need DECL_ARGUMENTS to put attributes on, in case some arguments
2529 : // need adjustment
2530 1820 : create_function_arglist (sym->formal_ns->proc_name);
2531 1820 : gfc_trans_omp_declare_variant (sym->formal_ns, sym->ns);
2532 : }
2533 : }
2534 :
2535 19364 : return fndecl;
2536 : }
2537 :
2538 :
2539 : /* Create a declaration for a procedure. For external functions (in the C
2540 : sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is
2541 : a master function with alternate entry points. */
2542 :
2543 : static void
2544 98796 : build_function_decl (gfc_symbol * sym, bool global)
2545 : {
2546 98796 : tree fndecl, type;
2547 98796 : symbol_attribute attr;
2548 98796 : tree result_decl;
2549 98796 : gfc_formal_arglist *f;
2550 :
2551 197592 : bool module_procedure = sym->attr.module_procedure
2552 472 : && sym->ns
2553 472 : && sym->ns->proc_name
2554 99268 : && sym->ns->proc_name->attr.flavor == FL_MODULE;
2555 :
2556 98796 : gcc_assert (!sym->attr.external || module_procedure);
2557 :
2558 98796 : if (sym->backend_decl)
2559 11335 : return;
2560 :
2561 : /* Set the line and filename. sym->declared_at seems to point to the
2562 : last statement for subroutines, but it'll do for now. */
2563 87461 : input_location = gfc_get_location (&sym->declared_at);
2564 :
2565 : /* Allow only one nesting level. Allow public declarations. */
2566 87461 : gcc_assert (current_function_decl == NULL_TREE
2567 : || DECL_FILE_SCOPE_P (current_function_decl)
2568 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2569 : == FUNCTION_DECL)
2570 : || (TREE_CODE (DECL_CONTEXT (current_function_decl))
2571 : == NAMESPACE_DECL));
2572 :
2573 87461 : type = gfc_get_function_type (sym);
2574 87461 : fndecl = build_decl (input_location,
2575 : FUNCTION_DECL, gfc_sym_identifier (sym), type);
2576 :
2577 87461 : attr = sym->attr;
2578 :
2579 : /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes;
2580 : TREE_PUBLIC specifies whether a function is globally addressable (i.e.
2581 : the opposite of declaring a function as static in C). */
2582 87461 : DECL_EXTERNAL (fndecl) = 0;
2583 :
2584 87461 : if (sym->attr.access == ACCESS_UNKNOWN && sym->module
2585 25180 : && (sym->ns->default_access == ACCESS_PRIVATE
2586 23126 : || (sym->ns->default_access == ACCESS_UNKNOWN
2587 23113 : && flag_module_private)))
2588 2054 : sym->attr.access = ACCESS_PRIVATE;
2589 :
2590 26501 : bool in_module_contains = sym->module && sym->ns->proc_name
2591 113962 : && sym->ns->proc_name->attr.flavor == FL_MODULE;
2592 :
2593 87461 : if (!current_function_decl
2594 64210 : && !sym->attr.entry_master && !sym->attr.is_main_program
2595 37078 : && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label
2596 2244 : || sym->attr.public_used || in_module_contains))
2597 : {
2598 37078 : TREE_PUBLIC (fndecl) = 1;
2599 :
2600 : /* Mirror the variable treatment (see gfc_finish_var_decl): PRIVATE
2601 : module procedures get global linkage but hidden visibility so the
2602 : symbol is reachable from submodules in the same link without being
2603 : exported to external DSOs. */
2604 37078 : if (in_module_contains && sym->attr.access == ACCESS_PRIVATE
2605 2448 : && !sym->attr.public_used)
2606 : {
2607 1081 : DECL_VISIBILITY (fndecl) = VISIBILITY_HIDDEN;
2608 1081 : DECL_VISIBILITY_SPECIFIED (fndecl) = true;
2609 : }
2610 : }
2611 :
2612 87461 : if (sym->attr.referenced || sym->attr.entry_master)
2613 40776 : TREE_USED (fndecl) = 1;
2614 :
2615 87461 : add_attributes_to_decl (&fndecl, sym);
2616 :
2617 : /* Figure out the return type of the declared function, and build a
2618 : RESULT_DECL for it. If this is a subroutine with alternate
2619 : returns, build a RESULT_DECL for it. */
2620 87461 : result_decl = NULL_TREE;
2621 : /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */
2622 87461 : if (sym->attr.function)
2623 : {
2624 16434 : if (gfc_return_by_reference (sym))
2625 3173 : type = void_type_node;
2626 : else
2627 : {
2628 13261 : if (sym->result != sym)
2629 6501 : result_decl = gfc_sym_identifier (sym->result);
2630 :
2631 13261 : type = TREE_TYPE (TREE_TYPE (fndecl));
2632 : }
2633 : }
2634 : else
2635 : {
2636 : /* Look for alternate return placeholders. */
2637 71027 : int has_alternate_returns = 0;
2638 150834 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2639 : {
2640 79876 : if (f->sym == NULL)
2641 : {
2642 : has_alternate_returns = 1;
2643 : break;
2644 : }
2645 : }
2646 :
2647 71027 : if (has_alternate_returns)
2648 69 : type = integer_type_node;
2649 : else
2650 70958 : type = void_type_node;
2651 : }
2652 :
2653 87461 : result_decl = build_decl (input_location,
2654 : RESULT_DECL, result_decl, type);
2655 87461 : DECL_ARTIFICIAL (result_decl) = 1;
2656 87461 : DECL_IGNORED_P (result_decl) = 1;
2657 87461 : DECL_CONTEXT (result_decl) = fndecl;
2658 87461 : DECL_RESULT (fndecl) = result_decl;
2659 :
2660 : /* Don't call layout_decl for a RESULT_DECL.
2661 : layout_decl (result_decl, 0); */
2662 :
2663 : /* TREE_STATIC means the function body is defined here. */
2664 87461 : TREE_STATIC (fndecl) = 1;
2665 :
2666 : /* Set attributes for PURE functions. A call to a PURE function in the
2667 : Fortran 95 sense is both pure and without side effects in the C
2668 : sense. */
2669 87461 : if (sym->attr.pure || sym->attr.implicit_pure)
2670 : {
2671 : /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments
2672 : including an alternate return. In that case it can also be
2673 : marked as PURE. See also in gfc_get_extern_function_decl(). */
2674 19486 : if (attr.function && !gfc_return_by_reference (sym))
2675 4739 : DECL_PURE_P (fndecl) = 1;
2676 19486 : TREE_SIDE_EFFECTS (fndecl) = 0;
2677 : }
2678 :
2679 : /* Mark noinline functions. */
2680 87461 : if (attr.ext_attr & (1 << EXT_ATTR_NOINLINE))
2681 5 : DECL_UNINLINABLE (fndecl) = 1;
2682 :
2683 : /* Mark inline functions. Fortran has no 'inline' keyword, so both INLINE
2684 : and ALWAYS_INLINE set DECL_DECLARED_INLINE_P explicitly. ALWAYS_INLINE
2685 : additionally disregards the inliner's size limits. Setting only that
2686 : would make the middle-end warn that the always-inline function "might
2687 : not be inlinable". */
2688 87461 : if (attr.ext_attr & ((1 << EXT_ATTR_INLINE) | (1 << EXT_ATTR_ALWAYS_INLINE)))
2689 2 : DECL_DECLARED_INLINE_P (fndecl) = 1;
2690 87461 : if (attr.ext_attr & (1 << EXT_ATTR_ALWAYS_INLINE))
2691 1 : DECL_DISREGARD_INLINE_LIMITS (fndecl) = 1;
2692 :
2693 : /* Mark noreturn functions. */
2694 87461 : if (attr.ext_attr & (1 << EXT_ATTR_NORETURN))
2695 8 : TREE_THIS_VOLATILE (fndecl) = 1;
2696 :
2697 : /* Mark weak functions. */
2698 87461 : if (attr.ext_attr & (1 << EXT_ATTR_WEAK))
2699 6 : declare_weak (fndecl);
2700 :
2701 : /* Layout the function declaration and put it in the binding level
2702 : of the current function. */
2703 :
2704 87461 : if (global)
2705 778 : pushdecl_top_level (fndecl);
2706 : else
2707 86683 : pushdecl (fndecl);
2708 :
2709 : /* Perform name mangling if this is a top level or module procedure. */
2710 87461 : if (current_function_decl == NULL_TREE)
2711 64210 : gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym));
2712 :
2713 87461 : sym->backend_decl = fndecl;
2714 : }
2715 :
2716 :
2717 : /* Create the DECL_ARGUMENTS for a procedure.
2718 : NOTE: The arguments added here must match the argument type created by
2719 : gfc_get_function_type (). */
2720 :
2721 : static void
2722 89281 : create_function_arglist (gfc_symbol * sym)
2723 : {
2724 89281 : tree fndecl;
2725 89281 : gfc_formal_arglist *f;
2726 89281 : tree typelist, hidden_typelist, optval_typelist;
2727 89281 : tree arglist, hidden_arglist, optval_arglist;
2728 89281 : tree type;
2729 89281 : tree parm;
2730 :
2731 89281 : fndecl = sym->backend_decl;
2732 :
2733 : /* Build formal argument list. Make sure that their TREE_CONTEXT is
2734 : the new FUNCTION_DECL node. */
2735 89281 : arglist = NULL_TREE;
2736 89281 : hidden_arglist = NULL_TREE;
2737 89281 : optval_arglist = NULL_TREE;
2738 89281 : typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl));
2739 :
2740 89281 : if (sym->attr.entry_master)
2741 : {
2742 667 : type = TREE_VALUE (typelist);
2743 667 : parm = build_decl (input_location,
2744 : PARM_DECL, get_identifier ("__entry"), type);
2745 :
2746 667 : DECL_CONTEXT (parm) = fndecl;
2747 667 : DECL_ARG_TYPE (parm) = type;
2748 667 : TREE_READONLY (parm) = 1;
2749 667 : gfc_finish_decl (parm);
2750 667 : DECL_ARTIFICIAL (parm) = 1;
2751 :
2752 667 : arglist = chainon (arglist, parm);
2753 667 : typelist = TREE_CHAIN (typelist);
2754 : }
2755 :
2756 89281 : if (gfc_return_by_reference (sym))
2757 : {
2758 3215 : tree type = TREE_VALUE (typelist), length = NULL;
2759 :
2760 3215 : if (sym->ts.type == BT_CHARACTER)
2761 : {
2762 : /* Length of character result. */
2763 1652 : tree len_type = TREE_VALUE (TREE_CHAIN (typelist));
2764 :
2765 1652 : length = build_decl (input_location,
2766 : PARM_DECL,
2767 : get_identifier (".__result"),
2768 : len_type);
2769 1652 : if (POINTER_TYPE_P (len_type))
2770 : {
2771 288 : sym->ts.u.cl->passed_length = length;
2772 288 : TREE_USED (length) = 1;
2773 : }
2774 1364 : else if (!sym->ts.u.cl->length)
2775 : {
2776 157 : sym->ts.u.cl->backend_decl = length;
2777 157 : TREE_USED (length) = 1;
2778 : }
2779 1652 : gcc_assert (TREE_CODE (length) == PARM_DECL);
2780 1652 : DECL_CONTEXT (length) = fndecl;
2781 1652 : DECL_ARG_TYPE (length) = len_type;
2782 1652 : TREE_READONLY (length) = 1;
2783 1652 : DECL_ARTIFICIAL (length) = 1;
2784 1652 : gfc_finish_decl (length);
2785 1652 : if (sym->ts.u.cl->backend_decl == NULL
2786 641 : || sym->ts.u.cl->backend_decl == length)
2787 : {
2788 1168 : gfc_symbol *arg;
2789 1168 : tree backend_decl;
2790 :
2791 1168 : if (sym->ts.u.cl->backend_decl == NULL)
2792 : {
2793 1011 : tree len = build_decl (input_location,
2794 : VAR_DECL,
2795 : get_identifier ("..__result"),
2796 : gfc_charlen_type_node);
2797 1011 : DECL_ARTIFICIAL (len) = 1;
2798 1011 : TREE_USED (len) = 1;
2799 1011 : sym->ts.u.cl->backend_decl = len;
2800 : }
2801 :
2802 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2803 1168 : arg = sym->result ? sym->result : sym;
2804 1168 : backend_decl = arg->backend_decl;
2805 : /* Temporary clear it, so that gfc_sym_type creates complete
2806 : type. */
2807 1168 : arg->backend_decl = NULL;
2808 1168 : type = gfc_sym_type (arg);
2809 1168 : arg->backend_decl = backend_decl;
2810 1168 : type = build_reference_type (type);
2811 : }
2812 : }
2813 :
2814 3215 : parm = build_decl (input_location,
2815 : PARM_DECL, get_identifier ("__result"), type);
2816 :
2817 3215 : DECL_CONTEXT (parm) = fndecl;
2818 3215 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
2819 3215 : TREE_READONLY (parm) = 1;
2820 3215 : DECL_ARTIFICIAL (parm) = 1;
2821 3215 : gfc_finish_decl (parm);
2822 :
2823 3215 : arglist = chainon (arglist, parm);
2824 3215 : typelist = TREE_CHAIN (typelist);
2825 :
2826 3215 : if (sym->ts.type == BT_CHARACTER)
2827 : {
2828 1652 : gfc_allocate_lang_decl (parm);
2829 1652 : arglist = chainon (arglist, length);
2830 1652 : typelist = TREE_CHAIN (typelist);
2831 : }
2832 : }
2833 :
2834 89281 : hidden_typelist = typelist;
2835 194503 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2836 105222 : if (f->sym != NULL) /* Ignore alternate returns. */
2837 105123 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2838 :
2839 : /* Advance hidden_typelist over optional+value argument presence flags. */
2840 89281 : optval_typelist = hidden_typelist;
2841 194503 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2842 105222 : if (f->sym != NULL
2843 105123 : && f->sym->attr.optional && f->sym->attr.value
2844 512 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2845 512 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2846 :
2847 194503 : for (f = gfc_sym_get_dummy_args (sym); f; f = f->next)
2848 : {
2849 105222 : char name[GFC_MAX_SYMBOL_LEN + 2];
2850 :
2851 : /* Ignore alternate returns. */
2852 105222 : if (f->sym == NULL)
2853 99 : continue;
2854 :
2855 105123 : type = TREE_VALUE (typelist);
2856 :
2857 105123 : if (f->sym->ts.type == BT_CHARACTER
2858 9623 : && (!sym->attr.is_bind_c || sym->attr.entry_master))
2859 : {
2860 8300 : tree len_type = TREE_VALUE (hidden_typelist);
2861 8300 : tree length = NULL_TREE;
2862 8300 : if (!f->sym->ts.deferred)
2863 7432 : gcc_assert (len_type == gfc_charlen_type_node);
2864 : else
2865 868 : gcc_assert (POINTER_TYPE_P (len_type));
2866 :
2867 8300 : strcpy (&name[1], f->sym->name);
2868 8300 : name[0] = '_';
2869 8300 : length = build_decl (input_location,
2870 : PARM_DECL, get_identifier (name), len_type);
2871 :
2872 8300 : hidden_arglist = chainon (hidden_arglist, length);
2873 8300 : DECL_CONTEXT (length) = fndecl;
2874 8300 : DECL_ARTIFICIAL (length) = 1;
2875 8300 : DECL_ARG_TYPE (length) = len_type;
2876 8300 : TREE_READONLY (length) = 1;
2877 8300 : gfc_finish_decl (length);
2878 :
2879 : /* Marking the length DECL_HIDDEN_STRING_LENGTH will lead
2880 : to tail calls being disabled. Only do that if we
2881 : potentially have broken callers. */
2882 8300 : if (flag_tail_call_workaround
2883 8300 : && f->sym->ts.u.cl
2884 7768 : && f->sym->ts.u.cl->length
2885 2647 : && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT
2886 2382 : && (flag_tail_call_workaround == 2
2887 2382 : || f->sym->ns->implicit_interface_calls))
2888 84 : DECL_HIDDEN_STRING_LENGTH (length) = 1;
2889 :
2890 : /* Remember the passed value. */
2891 8300 : if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length)
2892 : {
2893 : /* This can happen if the same type is used for multiple
2894 : arguments. We need to copy cl as otherwise
2895 : cl->passed_length gets overwritten. */
2896 634 : f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl);
2897 : }
2898 8300 : f->sym->ts.u.cl->passed_length = length;
2899 :
2900 : /* Use the passed value for assumed length variables. */
2901 8300 : if (!f->sym->ts.u.cl->length)
2902 : {
2903 5653 : TREE_USED (length) = 1;
2904 5653 : gcc_assert (!f->sym->ts.u.cl->backend_decl);
2905 5653 : f->sym->ts.u.cl->backend_decl = length;
2906 : }
2907 :
2908 8300 : hidden_typelist = TREE_CHAIN (hidden_typelist);
2909 :
2910 8300 : if (f->sym->ts.u.cl->backend_decl == NULL
2911 8002 : || f->sym->ts.u.cl->backend_decl == length)
2912 : {
2913 5951 : if (POINTER_TYPE_P (len_type))
2914 768 : f->sym->ts.u.cl->backend_decl
2915 768 : = build_fold_indirect_ref_loc (input_location, length);
2916 5183 : else if (f->sym->ts.u.cl->backend_decl == NULL)
2917 298 : gfc_create_string_length (f->sym);
2918 :
2919 : /* Make sure PARM_DECL type doesn't point to incomplete type. */
2920 5951 : if (f->sym->attr.flavor == FL_PROCEDURE)
2921 14 : type = build_pointer_type (gfc_get_function_type (f->sym));
2922 : else
2923 5937 : type = gfc_sym_type (f->sym);
2924 : }
2925 : }
2926 : /* For scalar intrinsic types or derived types, VALUE passes the value,
2927 : hence, the optional status cannot be transferred via a NULL pointer.
2928 : Thus, we will use a hidden argument in that case. */
2929 105123 : if (f->sym->attr.optional && f->sym->attr.value
2930 512 : && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS)
2931 : {
2932 512 : tree tmp;
2933 512 : strcpy (&name[1], f->sym->name);
2934 512 : name[0] = '.';
2935 512 : tmp = build_decl (input_location,
2936 : PARM_DECL, get_identifier (name),
2937 : boolean_type_node);
2938 :
2939 512 : optval_arglist = chainon (optval_arglist, tmp);
2940 512 : DECL_CONTEXT (tmp) = fndecl;
2941 512 : DECL_ARTIFICIAL (tmp) = 1;
2942 512 : DECL_ARG_TYPE (tmp) = boolean_type_node;
2943 512 : TREE_READONLY (tmp) = 1;
2944 512 : gfc_finish_decl (tmp);
2945 :
2946 : /* The presence flag must be boolean. */
2947 512 : gcc_assert (TREE_VALUE (optval_typelist) == boolean_type_node);
2948 512 : optval_typelist = TREE_CHAIN (optval_typelist);
2949 : }
2950 :
2951 : /* For non-constant length array arguments, make sure they use
2952 : a different type node from TYPE_ARG_TYPES type. */
2953 105123 : if (f->sym->attr.dimension
2954 23200 : && type == TREE_VALUE (typelist)
2955 21882 : && TREE_CODE (type) == POINTER_TYPE
2956 9835 : && GFC_ARRAY_TYPE_P (type)
2957 7981 : && f->sym->as->type != AS_ASSUMED_SIZE
2958 111288 : && ! COMPLETE_TYPE_P (TREE_TYPE (type)))
2959 : {
2960 2624 : if (f->sym->attr.flavor == FL_PROCEDURE)
2961 0 : type = build_pointer_type (gfc_get_function_type (f->sym));
2962 : else
2963 2624 : type = gfc_sym_type (f->sym);
2964 : }
2965 :
2966 105123 : if (f->sym->attr.proc_pointer)
2967 152 : type = build_pointer_type (type);
2968 :
2969 105123 : if (f->sym->attr.volatile_)
2970 5 : type = build_qualified_type (type, TYPE_QUAL_VOLATILE);
2971 :
2972 : /* Build the argument declaration. For C descriptors, we use a
2973 : '_'-prefixed name for the parm_decl and inside the proc the
2974 : sym->name. */
2975 105123 : tree parm_name;
2976 105123 : if (sym->attr.is_bind_c && is_CFI_desc (f->sym, NULL))
2977 : {
2978 1820 : strcpy (&name[1], f->sym->name);
2979 1820 : name[0] = '_';
2980 1820 : parm_name = get_identifier (name);
2981 : }
2982 : else
2983 103303 : parm_name = gfc_sym_identifier (f->sym);
2984 105123 : parm = build_decl (input_location, PARM_DECL, parm_name, type);
2985 :
2986 105123 : if (f->sym->attr.volatile_)
2987 : {
2988 5 : TREE_THIS_VOLATILE (parm) = 1;
2989 5 : TREE_SIDE_EFFECTS (parm) = 1;
2990 : }
2991 :
2992 : /* Fill in arg stuff. */
2993 105123 : DECL_CONTEXT (parm) = fndecl;
2994 105123 : DECL_ARG_TYPE (parm) = TREE_VALUE (typelist);
2995 : /* All implementation args except for VALUE are read-only. */
2996 105123 : if (!f->sym->attr.value)
2997 95920 : TREE_READONLY (parm) = 1;
2998 105123 : if (POINTER_TYPE_P (type)
2999 96606 : && (!f->sym->attr.proc_pointer
3000 96454 : && f->sym->attr.flavor != FL_PROCEDURE))
3001 95666 : DECL_BY_REFERENCE (parm) = 1;
3002 105123 : if (f->sym->attr.optional)
3003 : {
3004 6101 : gfc_allocate_lang_decl (parm);
3005 6101 : GFC_DECL_OPTIONAL_ARGUMENT (parm) = 1;
3006 : }
3007 :
3008 105123 : gfc_finish_decl (parm);
3009 105123 : gfc_finish_decl_attrs (parm, &f->sym->attr);
3010 :
3011 105123 : f->sym->backend_decl = parm;
3012 :
3013 : /* Coarrays which are descriptorless or assumed-shape pass with
3014 : -fcoarray=lib the token and the offset as hidden arguments. */
3015 105123 : if (flag_coarray == GFC_FCOARRAY_LIB
3016 6933 : && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension
3017 1532 : && !f->sym->attr.allocatable)
3018 5423 : || (f->sym->ts.type == BT_CLASS
3019 27 : && CLASS_DATA (f->sym)->attr.codimension
3020 22 : && !CLASS_DATA (f->sym)->attr.allocatable)))
3021 : {
3022 1528 : tree caf_type;
3023 1528 : tree token;
3024 1528 : tree offset;
3025 :
3026 1528 : gcc_assert (f->sym->backend_decl != NULL_TREE
3027 : && !sym->attr.is_bind_c);
3028 1528 : caf_type = f->sym->ts.type == BT_CLASS
3029 1528 : ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl)
3030 1510 : : TREE_TYPE (f->sym->backend_decl);
3031 :
3032 1528 : token = build_decl (input_location, PARM_DECL,
3033 : create_tmp_var_name ("caf_token"),
3034 : build_qualified_type (pvoid_type_node,
3035 : TYPE_QUAL_RESTRICT));
3036 1528 : if ((f->sym->ts.type != BT_CLASS
3037 1510 : && f->sym->as->type != AS_DEFERRED)
3038 18 : || (f->sym->ts.type == BT_CLASS
3039 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3040 : {
3041 1528 : gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL
3042 : || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE);
3043 1528 : if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL)
3044 1523 : gfc_allocate_lang_decl (f->sym->backend_decl);
3045 1528 : GFC_DECL_TOKEN (f->sym->backend_decl) = token;
3046 : }
3047 : else
3048 : {
3049 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE);
3050 0 : GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token;
3051 : }
3052 :
3053 1528 : DECL_CONTEXT (token) = fndecl;
3054 1528 : DECL_ARTIFICIAL (token) = 1;
3055 1528 : DECL_ARG_TYPE (token) = TREE_VALUE (typelist);
3056 1528 : TREE_READONLY (token) = 1;
3057 1528 : hidden_arglist = chainon (hidden_arglist, token);
3058 1528 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3059 1528 : gfc_finish_decl (token);
3060 :
3061 1528 : offset = build_decl (input_location, PARM_DECL,
3062 : create_tmp_var_name ("caf_offset"),
3063 : gfc_array_index_type);
3064 :
3065 1528 : if ((f->sym->ts.type != BT_CLASS
3066 1510 : && f->sym->as->type != AS_DEFERRED)
3067 18 : || (f->sym->ts.type == BT_CLASS
3068 18 : && CLASS_DATA (f->sym)->as->type != AS_DEFERRED))
3069 : {
3070 1528 : gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl)
3071 : == NULL_TREE);
3072 1528 : GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset;
3073 : }
3074 : else
3075 : {
3076 0 : gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE);
3077 0 : GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset;
3078 : }
3079 1528 : DECL_CONTEXT (offset) = fndecl;
3080 1528 : DECL_ARTIFICIAL (offset) = 1;
3081 1528 : DECL_ARG_TYPE (offset) = TREE_VALUE (typelist);
3082 1528 : TREE_READONLY (offset) = 1;
3083 1528 : hidden_arglist = chainon (hidden_arglist, offset);
3084 1528 : hidden_typelist = TREE_CHAIN (hidden_typelist);
3085 1528 : gfc_finish_decl (offset);
3086 : }
3087 :
3088 105123 : arglist = chainon (arglist, parm);
3089 105123 : typelist = TREE_CHAIN (typelist);
3090 : }
3091 :
3092 : /* Add hidden present status for optional+value arguments. */
3093 89281 : arglist = chainon (arglist, optval_arglist);
3094 :
3095 : /* Add the hidden string length parameters, unless the procedure
3096 : is bind(C). */
3097 89281 : if (!sym->attr.is_bind_c)
3098 87098 : arglist = chainon (arglist, hidden_arglist);
3099 :
3100 178562 : gcc_assert (hidden_typelist == NULL_TREE
3101 : || TREE_VALUE (hidden_typelist) == void_type_node);
3102 89281 : DECL_ARGUMENTS (fndecl) = arglist;
3103 89281 : }
3104 :
3105 : /* Do the setup necessary before generating the body of a function. */
3106 :
3107 : static void
3108 87461 : trans_function_start (gfc_symbol * sym)
3109 : {
3110 87461 : tree fndecl;
3111 :
3112 87461 : fndecl = sym->backend_decl;
3113 :
3114 : /* Let GCC know the current scope is this function. */
3115 87461 : current_function_decl = fndecl;
3116 :
3117 : /* Let the world know what we're about to do. */
3118 87461 : announce_function (fndecl);
3119 :
3120 87461 : if (DECL_FILE_SCOPE_P (fndecl))
3121 : {
3122 : /* Create RTL for function declaration. */
3123 37964 : rest_of_decl_compilation (fndecl, 1, 0);
3124 : }
3125 :
3126 : /* Create RTL for function definition. */
3127 87461 : make_decl_rtl (fndecl);
3128 :
3129 87461 : allocate_struct_function (fndecl, false);
3130 :
3131 : /* function.cc requires a push at the start of the function. */
3132 87461 : pushlevel ();
3133 87461 : }
3134 :
3135 : /* Create thunks for alternate entry points. */
3136 :
3137 : static void
3138 667 : build_entry_thunks (gfc_namespace * ns, bool global)
3139 : {
3140 667 : gfc_formal_arglist *formal;
3141 667 : gfc_formal_arglist *thunk_formal;
3142 667 : gfc_entry_list *el;
3143 667 : gfc_symbol *thunk_sym;
3144 667 : stmtblock_t body;
3145 667 : tree thunk_fndecl;
3146 667 : tree tmp;
3147 667 : location_t old_loc;
3148 :
3149 : /* This should always be a toplevel function. */
3150 667 : gcc_assert (current_function_decl == NULL_TREE);
3151 :
3152 667 : old_loc = input_location;
3153 2079 : for (el = ns->entries; el; el = el->next)
3154 : {
3155 1412 : vec<tree, va_gc> *args = NULL;
3156 1412 : vec<tree, va_gc> *string_args = NULL;
3157 :
3158 1412 : thunk_sym = el->sym;
3159 :
3160 1412 : build_function_decl (thunk_sym, global);
3161 1412 : create_function_arglist (thunk_sym);
3162 :
3163 1412 : trans_function_start (thunk_sym);
3164 :
3165 1412 : thunk_fndecl = thunk_sym->backend_decl;
3166 :
3167 1412 : gfc_init_block (&body);
3168 :
3169 : /* Pass extra parameter identifying this entry point. */
3170 1412 : tmp = build_int_cst (gfc_array_index_type, el->id);
3171 1412 : vec_safe_push (args, tmp);
3172 :
3173 : /* When the master returns by reference, pass the result reference
3174 : and (for CHARACTER) the string length to the master call. If the
3175 : thunk itself also returns by reference these are forwarded from
3176 : its own argument list; otherwise (bind(c) CHARACTER entry) we
3177 : create local temporaries and load the value after the call. */
3178 1412 : tree result_ref = NULL_TREE;
3179 1412 : if (thunk_sym->attr.function
3180 1412 : && gfc_return_by_reference (ns->proc_name))
3181 : {
3182 300 : if (gfc_return_by_reference (thunk_sym))
3183 : {
3184 276 : tree ref = DECL_ARGUMENTS (current_function_decl);
3185 276 : vec_safe_push (args, ref);
3186 276 : if (ns->proc_name->ts.type == BT_CHARACTER)
3187 160 : vec_safe_push (args, DECL_CHAIN (ref));
3188 : }
3189 : else
3190 : {
3191 : /* The thunk is bind(c) and returns CHARACTER by value, but
3192 : the master returns by reference. Create a local buffer
3193 : and length to pass to the master call. */
3194 24 : tree chartype = gfc_get_char_type (thunk_sym->ts.kind);
3195 24 : tree len;
3196 :
3197 24 : if (thunk_sym->ts.u.cl && thunk_sym->ts.u.cl->length)
3198 : {
3199 24 : gfc_se se;
3200 24 : gfc_init_se (&se, NULL);
3201 24 : gfc_conv_expr (&se, thunk_sym->ts.u.cl->length);
3202 24 : gfc_add_block_to_block (&body, &se.pre);
3203 24 : len = se.expr;
3204 24 : gfc_add_block_to_block (&body, &se.post);
3205 24 : }
3206 : else
3207 0 : len = build_int_cst (gfc_charlen_type_node, 1);
3208 :
3209 24 : result_ref = build_decl (input_location, VAR_DECL,
3210 : get_identifier ("__entry_result"),
3211 : build_array_type (chartype,
3212 : build_range_type (gfc_array_index_type,
3213 : gfc_index_one_node,
3214 : fold_convert (gfc_array_index_type,
3215 : len))));
3216 24 : DECL_ARTIFICIAL (result_ref) = 1;
3217 24 : TREE_USED (result_ref) = 1;
3218 24 : DECL_CONTEXT (result_ref) = current_function_decl;
3219 24 : layout_decl (result_ref, 0);
3220 24 : pushdecl (result_ref);
3221 :
3222 48 : vec_safe_push (args,
3223 24 : build_fold_addr_expr_loc (input_location,
3224 : result_ref));
3225 24 : vec_safe_push (args, len);
3226 : }
3227 : }
3228 :
3229 2977 : for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal;
3230 1565 : formal = formal->next)
3231 : {
3232 : /* Ignore alternate returns. */
3233 1565 : if (formal->sym == NULL)
3234 36 : continue;
3235 :
3236 : /* We don't have a clever way of identifying arguments, so resort to
3237 : a brute-force search. */
3238 1529 : for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym);
3239 2697 : thunk_formal;
3240 1168 : thunk_formal = thunk_formal->next)
3241 : {
3242 2257 : if (thunk_formal->sym == formal->sym)
3243 : break;
3244 : }
3245 :
3246 1529 : if (thunk_formal)
3247 : {
3248 : /* Pass the argument. */
3249 1089 : DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1;
3250 1089 : vec_safe_push (args, thunk_formal->sym->backend_decl);
3251 1089 : if (formal->sym->ts.type == BT_CHARACTER)
3252 : {
3253 94 : tmp = thunk_formal->sym->ts.u.cl->backend_decl;
3254 94 : vec_safe_push (string_args, tmp);
3255 : }
3256 : }
3257 : else
3258 : {
3259 : /* Pass NULL for a missing argument. */
3260 440 : vec_safe_push (args, null_pointer_node);
3261 440 : if (formal->sym->ts.type == BT_CHARACTER)
3262 : {
3263 38 : tmp = build_int_cst (gfc_charlen_type_node, 0);
3264 38 : vec_safe_push (string_args, tmp);
3265 : }
3266 : }
3267 : }
3268 :
3269 : /* Call the master function. */
3270 1412 : vec_safe_splice (args, string_args);
3271 1412 : tmp = ns->proc_name->backend_decl;
3272 1412 : tmp = build_call_expr_loc_vec (input_location, tmp, args);
3273 1412 : if (result_ref != NULL_TREE)
3274 : {
3275 : /* The master returns by reference (void) but the bind(c) thunk
3276 : returns CHARACTER by value. Execute the master call, then
3277 : load the first character from the local buffer. */
3278 24 : gfc_add_expr_to_block (&body, tmp);
3279 24 : tmp = build4_loc (input_location, ARRAY_REF,
3280 24 : TREE_TYPE (TREE_TYPE (result_ref)),
3281 : result_ref, gfc_index_one_node,
3282 : NULL_TREE, NULL_TREE);
3283 24 : tmp = fold_convert (TREE_TYPE (DECL_RESULT (current_function_decl)),
3284 : tmp);
3285 24 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3286 24 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3287 24 : DECL_RESULT (current_function_decl), tmp);
3288 24 : tmp = build1_v (RETURN_EXPR, tmp);
3289 : }
3290 1388 : else if (ns->proc_name->attr.mixed_entry_master)
3291 : {
3292 214 : tree union_decl, field;
3293 214 : tree master_type = TREE_TYPE (ns->proc_name->backend_decl);
3294 :
3295 214 : union_decl = build_decl (input_location,
3296 : VAR_DECL, get_identifier ("__result"),
3297 214 : TREE_TYPE (master_type));
3298 214 : DECL_ARTIFICIAL (union_decl) = 1;
3299 214 : DECL_EXTERNAL (union_decl) = 0;
3300 214 : TREE_PUBLIC (union_decl) = 0;
3301 214 : TREE_USED (union_decl) = 1;
3302 214 : layout_decl (union_decl, 0);
3303 214 : pushdecl (union_decl);
3304 :
3305 214 : DECL_CONTEXT (union_decl) = current_function_decl;
3306 214 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3307 214 : TREE_TYPE (union_decl), union_decl, tmp);
3308 214 : gfc_add_expr_to_block (&body, tmp);
3309 :
3310 214 : for (field = TYPE_FIELDS (TREE_TYPE (union_decl));
3311 348 : field; field = DECL_CHAIN (field))
3312 348 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3313 348 : thunk_sym->result->name) == 0)
3314 : break;
3315 0 : gcc_assert (field != NULL_TREE);
3316 214 : tmp = fold_build3_loc (input_location, COMPONENT_REF,
3317 214 : TREE_TYPE (field), union_decl, field,
3318 : NULL_TREE);
3319 214 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3320 214 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3321 214 : DECL_RESULT (current_function_decl), tmp);
3322 214 : tmp = build1_v (RETURN_EXPR, tmp);
3323 : }
3324 1174 : else if (TREE_TYPE (DECL_RESULT (current_function_decl))
3325 1174 : != void_type_node)
3326 : {
3327 705 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
3328 705 : TREE_TYPE (DECL_RESULT (current_function_decl)),
3329 705 : DECL_RESULT (current_function_decl), tmp);
3330 705 : tmp = build1_v (RETURN_EXPR, tmp);
3331 : }
3332 1412 : gfc_add_expr_to_block (&body, tmp);
3333 :
3334 : /* Finish off this function and send it for code generation. */
3335 1412 : DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body);
3336 1412 : tmp = getdecls ();
3337 1412 : poplevel (1, 1);
3338 1412 : BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl;
3339 2824 : DECL_SAVED_TREE (thunk_fndecl)
3340 2824 : = fold_build3_loc (DECL_SOURCE_LOCATION (thunk_fndecl), BIND_EXPR,
3341 1412 : void_type_node, tmp, DECL_SAVED_TREE (thunk_fndecl),
3342 1412 : DECL_INITIAL (thunk_fndecl));
3343 :
3344 : /* Output the GENERIC tree. */
3345 1412 : dump_function (TDI_original, thunk_fndecl);
3346 :
3347 : /* Store the end of the function, so that we get good line number
3348 : info for the epilogue. */
3349 1412 : cfun->function_end_locus = input_location;
3350 :
3351 : /* We're leaving the context of this function, so zap cfun.
3352 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
3353 : tree_rest_of_compilation. */
3354 1412 : set_cfun (NULL);
3355 :
3356 1412 : current_function_decl = NULL_TREE;
3357 :
3358 1412 : cgraph_node::finalize_function (thunk_fndecl, true);
3359 :
3360 : /* We share the symbols in the formal argument list with other entry
3361 : points and the master function. Clear them so that they are
3362 : recreated for each function. */
3363 2546 : for (formal = gfc_sym_get_dummy_args (thunk_sym); formal;
3364 1134 : formal = formal->next)
3365 1134 : if (formal->sym != NULL) /* Ignore alternate returns. */
3366 : {
3367 1089 : formal->sym->backend_decl = NULL_TREE;
3368 1089 : if (formal->sym->ts.type == BT_CHARACTER)
3369 94 : formal->sym->ts.u.cl->backend_decl = NULL_TREE;
3370 : }
3371 :
3372 1412 : if (thunk_sym->attr.function)
3373 : {
3374 1194 : if (thunk_sym->ts.type == BT_CHARACTER)
3375 186 : thunk_sym->ts.u.cl->backend_decl = NULL_TREE;
3376 1194 : if (thunk_sym->result->ts.type == BT_CHARACTER)
3377 186 : thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE;
3378 : }
3379 : }
3380 :
3381 667 : input_location = old_loc;
3382 667 : }
3383 :
3384 :
3385 : /* Create a decl for a function, and create any thunks for alternate entry
3386 : points. If global is true, generate the function in the global binding
3387 : level, otherwise in the current binding level (which can be global). */
3388 :
3389 : void
3390 86049 : gfc_create_function_decl (gfc_namespace * ns, bool global)
3391 : {
3392 : /* Create a declaration for the master function. */
3393 86049 : build_function_decl (ns->proc_name, global);
3394 :
3395 : /* Compile the entry thunks. */
3396 86049 : if (ns->entries)
3397 667 : build_entry_thunks (ns, global);
3398 :
3399 : /* Now create the read argument list. */
3400 86049 : create_function_arglist (ns->proc_name);
3401 :
3402 86049 : if (ns->omp_declare_simd)
3403 94 : gfc_trans_omp_declare_simd (ns);
3404 :
3405 : /* Handle 'declare variant' directives. The applicable directives might
3406 : be declared in a parent namespace, so this needs to be called even if
3407 : there are no local directives. */
3408 86049 : if (flag_openmp)
3409 8746 : gfc_trans_omp_declare_variant (ns, NULL);
3410 86049 : }
3411 :
3412 : /* Return the decl used to hold the function return value. If
3413 : parent_flag is set, the context is the parent_scope. */
3414 :
3415 : tree
3416 13085 : gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag)
3417 : {
3418 13085 : tree decl;
3419 13085 : tree length;
3420 13085 : tree this_fake_result_decl;
3421 13085 : tree this_function_decl;
3422 :
3423 13085 : char name[GFC_MAX_SYMBOL_LEN + 10];
3424 :
3425 13085 : if (parent_flag)
3426 : {
3427 167 : this_fake_result_decl = parent_fake_result_decl;
3428 167 : this_function_decl = DECL_CONTEXT (current_function_decl);
3429 : }
3430 : else
3431 : {
3432 12918 : this_fake_result_decl = current_fake_result_decl;
3433 12918 : this_function_decl = current_function_decl;
3434 : }
3435 :
3436 13085 : if (sym
3437 13035 : && sym->ns->proc_name->backend_decl == this_function_decl
3438 4975 : && sym->ns->proc_name->attr.entry_master
3439 2392 : && sym != sym->ns->proc_name)
3440 : {
3441 1480 : tree t = NULL, var;
3442 1480 : if (this_fake_result_decl != NULL)
3443 1452 : for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t))
3444 1071 : if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0)
3445 : break;
3446 958 : if (t)
3447 577 : return TREE_VALUE (t);
3448 903 : decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag);
3449 :
3450 903 : if (parent_flag)
3451 14 : this_fake_result_decl = parent_fake_result_decl;
3452 : else
3453 889 : this_fake_result_decl = current_fake_result_decl;
3454 :
3455 903 : if (decl && sym->ns->proc_name->attr.mixed_entry_master)
3456 : {
3457 214 : tree field;
3458 :
3459 214 : for (field = TYPE_FIELDS (TREE_TYPE (decl));
3460 348 : field; field = DECL_CHAIN (field))
3461 348 : if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)),
3462 : sym->name) == 0)
3463 : break;
3464 :
3465 214 : gcc_assert (field != NULL_TREE);
3466 214 : decl = fold_build3_loc (input_location, COMPONENT_REF,
3467 214 : TREE_TYPE (field), decl, field, NULL_TREE);
3468 : }
3469 :
3470 903 : var = create_tmp_var_raw (TREE_TYPE (decl), sym->name);
3471 903 : if (parent_flag)
3472 14 : gfc_add_decl_to_parent_function (var);
3473 : else
3474 889 : gfc_add_decl_to_function (var);
3475 :
3476 903 : SET_DECL_VALUE_EXPR (var, decl);
3477 903 : DECL_HAS_VALUE_EXPR_P (var) = 1;
3478 903 : GFC_DECL_RESULT (var) = 1;
3479 :
3480 903 : TREE_CHAIN (this_fake_result_decl)
3481 903 : = tree_cons (get_identifier (sym->name), var,
3482 903 : TREE_CHAIN (this_fake_result_decl));
3483 903 : return var;
3484 : }
3485 :
3486 11605 : if (this_fake_result_decl != NULL_TREE)
3487 3995 : return TREE_VALUE (this_fake_result_decl);
3488 :
3489 : /* Only when gfc_get_fake_result_decl is called by gfc_trans_return,
3490 : sym is NULL. */
3491 7610 : if (!sym)
3492 : return NULL_TREE;
3493 :
3494 7610 : if (sym->ts.type == BT_CHARACTER)
3495 : {
3496 852 : if (sym->ts.u.cl->backend_decl == NULL_TREE)
3497 0 : length = gfc_create_string_length (sym);
3498 : else
3499 : length = sym->ts.u.cl->backend_decl;
3500 852 : if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE)
3501 514 : gfc_add_decl_to_function (length);
3502 : }
3503 :
3504 7610 : if (gfc_return_by_reference (sym))
3505 : {
3506 1613 : decl = DECL_ARGUMENTS (this_function_decl);
3507 :
3508 1613 : if (sym->ns->proc_name->backend_decl == this_function_decl
3509 405 : && sym->ns->proc_name->attr.entry_master)
3510 85 : decl = DECL_CHAIN (decl);
3511 :
3512 1613 : TREE_USED (decl) = 1;
3513 1613 : if (sym->as)
3514 807 : decl = gfc_build_dummy_array_decl (sym, decl);
3515 : }
3516 : else
3517 : {
3518 11994 : sprintf (name, "__result_%.20s",
3519 5997 : IDENTIFIER_POINTER (DECL_NAME (this_function_decl)));
3520 :
3521 5997 : if (!sym->attr.mixed_entry_master && sym->attr.function)
3522 5856 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3523 : VAR_DECL, get_identifier (name),
3524 : gfc_sym_type (sym));
3525 : else
3526 141 : decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl),
3527 : VAR_DECL, get_identifier (name),
3528 141 : TREE_TYPE (TREE_TYPE (this_function_decl)));
3529 5997 : DECL_ARTIFICIAL (decl) = 1;
3530 5997 : DECL_EXTERNAL (decl) = 0;
3531 5997 : TREE_PUBLIC (decl) = 0;
3532 5997 : TREE_USED (decl) = 1;
3533 5997 : GFC_DECL_RESULT (decl) = 1;
3534 5997 : TREE_ADDRESSABLE (decl) = 1;
3535 :
3536 5997 : layout_decl (decl, 0);
3537 5997 : gfc_finish_decl_attrs (decl, &sym->attr);
3538 :
3539 5997 : if (parent_flag)
3540 27 : gfc_add_decl_to_parent_function (decl);
3541 : else
3542 5970 : gfc_add_decl_to_function (decl);
3543 : }
3544 :
3545 7610 : if (parent_flag)
3546 39 : parent_fake_result_decl = build_tree_list (NULL, decl);
3547 : else
3548 7571 : current_fake_result_decl = build_tree_list (NULL, decl);
3549 :
3550 7610 : if (sym->attr.assign)
3551 1 : DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl);
3552 :
3553 : return decl;
3554 : }
3555 :
3556 :
3557 : /* Builds a function decl. The remaining parameters are the types of the
3558 : function arguments. Negative nargs indicates a varargs function. */
3559 :
3560 : static tree
3561 4781251 : build_library_function_decl_1 (tree name, const char *spec,
3562 : tree rettype, int nargs, va_list p)
3563 : {
3564 4781251 : vec<tree, va_gc> *arglist;
3565 4781251 : tree fntype;
3566 4781251 : tree fndecl;
3567 4781251 : int n;
3568 :
3569 : /* Library functions must be declared with global scope. */
3570 4781251 : gcc_assert (current_function_decl == NULL_TREE);
3571 :
3572 : /* Create a list of the argument types. */
3573 4781251 : vec_alloc (arglist, abs (nargs));
3574 19020453 : for (n = abs (nargs); n > 0; n--)
3575 : {
3576 14239202 : tree argtype = va_arg (p, tree);
3577 14239202 : arglist->quick_push (argtype);
3578 : }
3579 :
3580 : /* Build the function type and decl. */
3581 4781251 : if (nargs >= 0)
3582 13703691 : fntype = build_function_type_vec (rettype, arglist);
3583 : else
3584 573534 : fntype = build_varargs_function_type_vec (rettype, arglist);
3585 4781251 : if (spec)
3586 : {
3587 2790294 : tree attr_args = build_tree_list (NULL_TREE,
3588 2790294 : build_string (strlen (spec), spec));
3589 2790294 : tree attrs = tree_cons (get_identifier ("fn spec"),
3590 2790294 : attr_args, TYPE_ATTRIBUTES (fntype));
3591 2790294 : fntype = build_type_attribute_variant (fntype, attrs);
3592 : }
3593 4781251 : fndecl = build_decl (input_location,
3594 : FUNCTION_DECL, name, fntype);
3595 :
3596 : /* Mark this decl as external. */
3597 4781251 : DECL_EXTERNAL (fndecl) = 1;
3598 4781251 : TREE_PUBLIC (fndecl) = 1;
3599 :
3600 4781251 : pushdecl (fndecl);
3601 :
3602 4781251 : rest_of_decl_compilation (fndecl, 1, 0);
3603 :
3604 4781251 : return fndecl;
3605 : }
3606 :
3607 : /* Builds a function decl. The remaining parameters are the types of the
3608 : function arguments. Negative nargs indicates a varargs function. */
3609 :
3610 : tree
3611 1990957 : gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...)
3612 : {
3613 1990957 : tree ret;
3614 1990957 : va_list args;
3615 1990957 : va_start (args, nargs);
3616 1990957 : ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args);
3617 1990957 : va_end (args);
3618 1990957 : return ret;
3619 : }
3620 :
3621 : /* Builds a function decl. The remaining parameters are the types of the
3622 : function arguments. Negative nargs indicates a varargs function.
3623 : The SPEC parameter specifies the function argument and return type
3624 : specification according to the fnspec function type attribute. */
3625 :
3626 : tree
3627 2790294 : gfc_build_library_function_decl_with_spec (tree name, const char *spec,
3628 : tree rettype, int nargs, ...)
3629 : {
3630 2790294 : tree ret;
3631 2790294 : va_list args;
3632 2790294 : va_start (args, nargs);
3633 2790294 : if (flag_checking)
3634 : {
3635 2790294 : attr_fnspec fnspec (spec, strlen (spec));
3636 2790294 : fnspec.verify ();
3637 : }
3638 2790294 : ret = build_library_function_decl_1 (name, spec, rettype, nargs, args);
3639 2790294 : va_end (args);
3640 2790294 : return ret;
3641 : }
3642 :
3643 : static void
3644 31863 : gfc_build_intrinsic_function_decls (void)
3645 : {
3646 31863 : tree gfc_int4_type_node = gfc_get_int_type (4);
3647 31863 : tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node);
3648 31863 : tree gfc_int8_type_node = gfc_get_int_type (8);
3649 31863 : tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node);
3650 31863 : tree gfc_int16_type_node = gfc_get_int_type (16);
3651 31863 : tree gfc_logical4_type_node = gfc_get_logical_type (4);
3652 31863 : tree pchar1_type_node = gfc_get_pchar_type (1);
3653 31863 : tree pchar4_type_node = gfc_get_pchar_type (4);
3654 :
3655 : /* String functions. */
3656 31863 : gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec (
3657 : get_identifier (PREFIX("compare_string")), ". . R . R ",
3658 : integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node,
3659 : gfc_charlen_type_node, pchar1_type_node);
3660 31863 : DECL_PURE_P (gfor_fndecl_compare_string) = 1;
3661 31863 : TREE_NOTHROW (gfor_fndecl_compare_string) = 1;
3662 :
3663 31863 : gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec (
3664 : get_identifier (PREFIX("concat_string")), ". . W . R . R ",
3665 : void_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3666 : gfc_charlen_type_node, pchar1_type_node,
3667 : gfc_charlen_type_node, pchar1_type_node);
3668 31863 : TREE_NOTHROW (gfor_fndecl_concat_string) = 1;
3669 :
3670 31863 : gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec (
3671 : get_identifier (PREFIX("string_len_trim")), ". . R ",
3672 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node);
3673 31863 : DECL_PURE_P (gfor_fndecl_string_len_trim) = 1;
3674 31863 : TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1;
3675 :
3676 31863 : gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec (
3677 : get_identifier (PREFIX("string_index")), ". . R . R . ",
3678 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3679 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3680 31863 : DECL_PURE_P (gfor_fndecl_string_index) = 1;
3681 31863 : TREE_NOTHROW (gfor_fndecl_string_index) = 1;
3682 :
3683 31863 : gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec (
3684 : get_identifier (PREFIX("string_scan")), ". . R . R . ",
3685 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3686 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3687 31863 : DECL_PURE_P (gfor_fndecl_string_scan) = 1;
3688 31863 : TREE_NOTHROW (gfor_fndecl_string_scan) = 1;
3689 :
3690 31863 : gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec (
3691 : get_identifier (PREFIX("string_verify")), ". . R . R . ",
3692 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node,
3693 : gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node);
3694 31863 : DECL_PURE_P (gfor_fndecl_string_verify) = 1;
3695 31863 : TREE_NOTHROW (gfor_fndecl_string_verify) = 1;
3696 :
3697 31863 : gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec (
3698 : get_identifier (PREFIX("string_trim")), ". W w . R ",
3699 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3700 : build_pointer_type (pchar1_type_node), gfc_charlen_type_node,
3701 : pchar1_type_node);
3702 :
3703 31863 : gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec (
3704 : get_identifier (PREFIX("string_minmax")), ". W w . R ",
3705 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3706 : build_pointer_type (pchar1_type_node), integer_type_node,
3707 : integer_type_node);
3708 :
3709 31863 : gfor_fndecl_string_split = gfc_build_library_function_decl_with_spec (
3710 : get_identifier (PREFIX ("string_split")), ". . R . R . . ",
3711 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar1_type_node,
3712 : gfc_charlen_type_node, pchar1_type_node, gfc_charlen_type_node,
3713 : gfc_logical4_type_node);
3714 :
3715 31863 : {
3716 31863 : tree copy_helper_ptr_type;
3717 31863 : tree copy_helper_fn_type;
3718 :
3719 31863 : copy_helper_fn_type = build_function_type_list (void_type_node,
3720 : pvoid_type_node,
3721 : pvoid_type_node,
3722 : NULL_TREE);
3723 31863 : copy_helper_ptr_type = build_pointer_type (copy_helper_fn_type);
3724 :
3725 31863 : gfor_fndecl_cfi_deep_copy_array
3726 31863 : = gfc_build_library_function_decl_with_spec (
3727 : get_identifier (PREFIX ("cfi_deep_copy_array")), ". R R . ",
3728 : void_type_node, 3, pvoid_type_node, pvoid_type_node,
3729 : copy_helper_ptr_type);
3730 : }
3731 :
3732 31863 : gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec (
3733 : get_identifier (PREFIX("adjustl")), ". W . R ",
3734 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3735 : pchar1_type_node);
3736 31863 : TREE_NOTHROW (gfor_fndecl_adjustl) = 1;
3737 :
3738 31863 : gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec (
3739 : get_identifier (PREFIX("adjustr")), ". W . R ",
3740 : void_type_node, 3, pchar1_type_node, gfc_charlen_type_node,
3741 : pchar1_type_node);
3742 31863 : TREE_NOTHROW (gfor_fndecl_adjustr) = 1;
3743 :
3744 31863 : gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec (
3745 : get_identifier (PREFIX("select_string")), ". R . R . ",
3746 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3747 : pchar1_type_node, gfc_charlen_type_node);
3748 31863 : DECL_PURE_P (gfor_fndecl_select_string) = 1;
3749 31863 : TREE_NOTHROW (gfor_fndecl_select_string) = 1;
3750 :
3751 31863 : gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec (
3752 : get_identifier (PREFIX("compare_string_char4")), ". . R . R ",
3753 : integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node,
3754 : gfc_charlen_type_node, pchar4_type_node);
3755 31863 : DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1;
3756 31863 : TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1;
3757 :
3758 31863 : gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec (
3759 : get_identifier (PREFIX("concat_string_char4")), ". . W . R . R ",
3760 : void_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3761 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3762 : pchar4_type_node);
3763 31863 : TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1;
3764 :
3765 31863 : gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec (
3766 : get_identifier (PREFIX("string_len_trim_char4")), ". . R ",
3767 : gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node);
3768 31863 : DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1;
3769 31863 : TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1;
3770 :
3771 31863 : gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec (
3772 : get_identifier (PREFIX("string_index_char4")), ". . R . R . ",
3773 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3774 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3775 31863 : DECL_PURE_P (gfor_fndecl_string_index_char4) = 1;
3776 31863 : TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1;
3777 :
3778 31863 : gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec (
3779 : get_identifier (PREFIX("string_scan_char4")), ". . R . R . ",
3780 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3781 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3782 31863 : DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1;
3783 31863 : TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1;
3784 :
3785 31863 : gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec (
3786 : get_identifier (PREFIX("string_verify_char4")), ". . R . R . ",
3787 : gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node,
3788 : gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node);
3789 31863 : DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1;
3790 31863 : TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1;
3791 :
3792 31863 : gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec (
3793 : get_identifier (PREFIX("string_trim_char4")), ". W w . R ",
3794 : void_type_node, 4, build_pointer_type (gfc_charlen_type_node),
3795 : build_pointer_type (pchar4_type_node), gfc_charlen_type_node,
3796 : pchar4_type_node);
3797 :
3798 31863 : gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec (
3799 : get_identifier (PREFIX("string_minmax_char4")), ". W w . R ",
3800 : void_type_node, -4, build_pointer_type (gfc_charlen_type_node),
3801 : build_pointer_type (pchar4_type_node), integer_type_node,
3802 : integer_type_node);
3803 :
3804 31863 : gfor_fndecl_string_split_char4 = gfc_build_library_function_decl_with_spec (
3805 : get_identifier (PREFIX ("string_split_char4")), ". . R . R . . ",
3806 : gfc_charlen_type_node, 6, gfc_charlen_type_node, pchar4_type_node,
3807 : gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node,
3808 : gfc_logical4_type_node);
3809 :
3810 31863 : gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec (
3811 : get_identifier (PREFIX("adjustl_char4")), ". W . R ",
3812 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3813 : pchar4_type_node);
3814 31863 : TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1;
3815 :
3816 31863 : gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec (
3817 : get_identifier (PREFIX("adjustr_char4")), ". W . R ",
3818 : void_type_node, 3, pchar4_type_node, gfc_charlen_type_node,
3819 : pchar4_type_node);
3820 31863 : TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1;
3821 :
3822 31863 : gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec (
3823 : get_identifier (PREFIX("select_string_char4")), ". R . R . ",
3824 : integer_type_node, 4, pvoid_type_node, integer_type_node,
3825 : pvoid_type_node, gfc_charlen_type_node);
3826 31863 : DECL_PURE_P (gfor_fndecl_select_string_char4) = 1;
3827 31863 : TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1;
3828 :
3829 :
3830 : /* Conversion between character kinds. */
3831 :
3832 31863 : gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec (
3833 : get_identifier (PREFIX("convert_char1_to_char4")), ". w . R ",
3834 : void_type_node, 3, build_pointer_type (pchar4_type_node),
3835 : gfc_charlen_type_node, pchar1_type_node);
3836 :
3837 31863 : gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec (
3838 : get_identifier (PREFIX("convert_char4_to_char1")), ". w . R ",
3839 : void_type_node, 3, build_pointer_type (pchar1_type_node),
3840 : gfc_charlen_type_node, pchar4_type_node);
3841 :
3842 : /* Misc. functions. */
3843 :
3844 31863 : gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec (
3845 : get_identifier (PREFIX("ttynam")), ". W . . ",
3846 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3847 : integer_type_node);
3848 :
3849 31863 : gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec (
3850 : get_identifier (PREFIX("fdate")), ". W . ",
3851 : void_type_node, 2, pchar_type_node, gfc_charlen_type_node);
3852 :
3853 31863 : gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec (
3854 : get_identifier (PREFIX("ctime")), ". W . . ",
3855 : void_type_node, 3, pchar_type_node, gfc_charlen_type_node,
3856 : gfc_int8_type_node);
3857 :
3858 31863 : gfor_fndecl_random_init = gfc_build_library_function_decl (
3859 : get_identifier (PREFIX("random_init")),
3860 : void_type_node, 3, gfc_logical4_type_node, gfc_logical4_type_node,
3861 : gfc_int4_type_node);
3862 :
3863 : // gfor_fndecl_caf_rand_init is defined in the lib-coarray section below.
3864 :
3865 31863 : gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec (
3866 : get_identifier (PREFIX("selected_char_kind")), ". . R ",
3867 : gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node);
3868 31863 : DECL_PURE_P (gfor_fndecl_sc_kind) = 1;
3869 31863 : TREE_NOTHROW (gfor_fndecl_sc_kind) = 1;
3870 :
3871 31863 : gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec (
3872 : get_identifier (PREFIX("selected_int_kind")), ". R ",
3873 : gfc_int4_type_node, 1, pvoid_type_node);
3874 31863 : DECL_PURE_P (gfor_fndecl_si_kind) = 1;
3875 31863 : TREE_NOTHROW (gfor_fndecl_si_kind) = 1;
3876 :
3877 31863 : gfor_fndecl_sl_kind = gfc_build_library_function_decl_with_spec (
3878 : get_identifier (PREFIX("selected_logical_kind")), ". R ",
3879 : gfc_int4_type_node, 1, pvoid_type_node);
3880 31863 : DECL_PURE_P (gfor_fndecl_sl_kind) = 1;
3881 31863 : TREE_NOTHROW (gfor_fndecl_sl_kind) = 1;
3882 :
3883 31863 : gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec (
3884 : get_identifier (PREFIX("selected_real_kind2008")), ". R R ",
3885 : gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node,
3886 : pvoid_type_node);
3887 31863 : DECL_PURE_P (gfor_fndecl_sr_kind) = 1;
3888 31863 : TREE_NOTHROW (gfor_fndecl_sr_kind) = 1;
3889 :
3890 31863 : gfor_fndecl_system_clock4 = gfc_build_library_function_decl (
3891 : get_identifier (PREFIX("system_clock_4")),
3892 : void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node,
3893 : gfc_pint4_type_node);
3894 :
3895 31863 : gfor_fndecl_system_clock8 = gfc_build_library_function_decl (
3896 : get_identifier (PREFIX("system_clock_8")),
3897 : void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node,
3898 : gfc_pint8_type_node);
3899 :
3900 : /* Power functions. */
3901 31863 : {
3902 31863 : tree ctype, rtype, itype, jtype;
3903 31863 : int rkind, ikind, jkind;
3904 : #define NIKINDS 3
3905 : #define NRKINDS 4
3906 : #define NUKINDS 5
3907 31863 : static const int ikinds[NIKINDS] = {4, 8, 16};
3908 31863 : static const int rkinds[NRKINDS] = {4, 8, 10, 16};
3909 31863 : static const int ukinds[NUKINDS] = {1, 2, 4, 8, 16};
3910 31863 : char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */
3911 :
3912 127452 : for (ikind=0; ikind < NIKINDS; ikind++)
3913 : {
3914 95589 : itype = gfc_get_int_type (ikinds[ikind]);
3915 :
3916 477945 : for (jkind=0; jkind < NIKINDS; jkind++)
3917 : {
3918 286767 : jtype = gfc_get_int_type (ikinds[jkind]);
3919 286767 : if (itype && jtype)
3920 : {
3921 284722 : sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind],
3922 : ikinds[jkind]);
3923 569444 : gfor_fndecl_math_powi[jkind][ikind].integer =
3924 284722 : gfc_build_library_function_decl (get_identifier (name),
3925 : jtype, 2, jtype, itype);
3926 284722 : TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3927 284722 : TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1;
3928 : }
3929 : }
3930 :
3931 477945 : for (rkind = 0; rkind < NRKINDS; rkind ++)
3932 : {
3933 382356 : rtype = gfc_get_real_type (rkinds[rkind]);
3934 382356 : if (rtype && itype)
3935 : {
3936 380720 : sprintf (name, PREFIX("pow_r%d_i%d"),
3937 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3938 : ikinds[ikind]);
3939 761440 : gfor_fndecl_math_powi[rkind][ikind].real =
3940 380720 : gfc_build_library_function_decl (get_identifier (name),
3941 : rtype, 2, rtype, itype);
3942 380720 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
3943 380720 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1;
3944 : }
3945 :
3946 382356 : ctype = gfc_get_complex_type (rkinds[rkind]);
3947 382356 : if (ctype && itype)
3948 : {
3949 380720 : sprintf (name, PREFIX("pow_c%d_i%d"),
3950 : gfc_type_abi_kind (BT_REAL, rkinds[rkind]),
3951 : ikinds[ikind]);
3952 761440 : gfor_fndecl_math_powi[rkind][ikind].cmplx =
3953 380720 : gfc_build_library_function_decl (get_identifier (name),
3954 : ctype, 2,ctype, itype);
3955 380720 : TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
3956 380720 : TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1;
3957 : }
3958 : }
3959 : /* For unsigned types, we have every power for every type. */
3960 573534 : for (int base = 0; base < NUKINDS; base++)
3961 : {
3962 477945 : tree base_type = gfc_get_unsigned_type (ukinds[base]);
3963 2867670 : for (int expon = 0; expon < NUKINDS; expon++)
3964 : {
3965 2389725 : tree expon_type = gfc_get_unsigned_type (ukinds[base]);
3966 2389725 : if (base_type && expon_type)
3967 : {
3968 18375 : sprintf (name, PREFIX("pow_m%d_m%d"), ukinds[base],
3969 18375 : ukinds[expon]);
3970 36750 : gfor_fndecl_unsigned_pow_list [base][expon] =
3971 18375 : gfc_build_library_function_decl (get_identifier (name),
3972 : base_type, 2, base_type, expon_type);
3973 18375 : TREE_READONLY (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
3974 18375 : TREE_NOTHROW (gfor_fndecl_unsigned_pow_list[base][expon]) = 1;
3975 : }
3976 : }
3977 : }
3978 : }
3979 : #undef NIKINDS
3980 : #undef NRKINDS
3981 : #undef NUKINDS
3982 : }
3983 :
3984 31863 : gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl (
3985 : get_identifier (PREFIX("ishftc4")),
3986 : gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node,
3987 : gfc_int4_type_node);
3988 31863 : TREE_READONLY (gfor_fndecl_math_ishftc4) = 1;
3989 31863 : TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1;
3990 :
3991 31863 : gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl (
3992 : get_identifier (PREFIX("ishftc8")),
3993 : gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node,
3994 : gfc_int4_type_node);
3995 31863 : TREE_READONLY (gfor_fndecl_math_ishftc8) = 1;
3996 31863 : TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1;
3997 :
3998 31863 : if (gfc_int16_type_node)
3999 : {
4000 31454 : gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl (
4001 : get_identifier (PREFIX("ishftc16")),
4002 : gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node,
4003 : gfc_int4_type_node);
4004 31454 : TREE_READONLY (gfor_fndecl_math_ishftc16) = 1;
4005 31454 : TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1;
4006 : }
4007 :
4008 : /* BLAS functions. */
4009 31863 : {
4010 31863 : tree pint = build_pointer_type (integer_type_node);
4011 31863 : tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind));
4012 31863 : tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind));
4013 31863 : tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind));
4014 31863 : tree pz = build_pointer_type
4015 31863 : (gfc_get_complex_type (gfc_default_double_kind));
4016 :
4017 63726 : gfor_fndecl_sgemm = gfc_build_library_function_decl
4018 32642 : (get_identifier
4019 : (flag_underscoring ? "sgemm_" : "sgemm"),
4020 : void_type_node, 15, pchar_type_node,
4021 : pchar_type_node, pint, pint, pint, ps, ps, pint,
4022 : ps, pint, ps, ps, pint, integer_type_node,
4023 : integer_type_node);
4024 63726 : gfor_fndecl_dgemm = gfc_build_library_function_decl
4025 32642 : (get_identifier
4026 : (flag_underscoring ? "dgemm_" : "dgemm"),
4027 : void_type_node, 15, pchar_type_node,
4028 : pchar_type_node, pint, pint, pint, pd, pd, pint,
4029 : pd, pint, pd, pd, pint, integer_type_node,
4030 : integer_type_node);
4031 63726 : gfor_fndecl_cgemm = gfc_build_library_function_decl
4032 32642 : (get_identifier
4033 : (flag_underscoring ? "cgemm_" : "cgemm"),
4034 : void_type_node, 15, pchar_type_node,
4035 : pchar_type_node, pint, pint, pint, pc, pc, pint,
4036 : pc, pint, pc, pc, pint, integer_type_node,
4037 : integer_type_node);
4038 63726 : gfor_fndecl_zgemm = gfc_build_library_function_decl
4039 32642 : (get_identifier
4040 : (flag_underscoring ? "zgemm_" : "zgemm"),
4041 : void_type_node, 15, pchar_type_node,
4042 : pchar_type_node, pint, pint, pint, pz, pz, pint,
4043 : pz, pint, pz, pz, pint, integer_type_node,
4044 : integer_type_node);
4045 : }
4046 :
4047 : /* Other functions. */
4048 31863 : gfor_fndecl_iargc = gfc_build_library_function_decl (
4049 : get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0);
4050 31863 : TREE_NOTHROW (gfor_fndecl_iargc) = 1;
4051 :
4052 31863 : gfor_fndecl_kill_sub = gfc_build_library_function_decl (
4053 : get_identifier (PREFIX ("kill_sub")), void_type_node,
4054 : 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node);
4055 :
4056 31863 : gfor_fndecl_kill = gfc_build_library_function_decl (
4057 : get_identifier (PREFIX ("kill")), gfc_int4_type_node,
4058 : 2, gfc_int4_type_node, gfc_int4_type_node);
4059 :
4060 31863 : gfor_fndecl_is_contiguous0 = gfc_build_library_function_decl_with_spec (
4061 : get_identifier (PREFIX("is_contiguous0")), ". R ",
4062 : gfc_int4_type_node, 1, pvoid_type_node);
4063 31863 : DECL_PURE_P (gfor_fndecl_is_contiguous0) = 1;
4064 31863 : TREE_NOTHROW (gfor_fndecl_is_contiguous0) = 1;
4065 :
4066 31863 : gfor_fndecl_fstat_i4_sub = gfc_build_library_function_decl (
4067 : get_identifier (PREFIX ("fstat_i4_sub")), void_type_node,
4068 : 3, gfc_pint4_type_node, gfc_pint4_type_node, gfc_pint4_type_node);
4069 :
4070 31863 : gfor_fndecl_fstat_i8_sub = gfc_build_library_function_decl (
4071 : get_identifier (PREFIX ("fstat_i8_sub")), void_type_node,
4072 : 3, gfc_pint8_type_node, gfc_pint8_type_node, gfc_pint8_type_node);
4073 :
4074 31863 : gfor_fndecl_lstat_i4_sub = gfc_build_library_function_decl (
4075 : get_identifier (PREFIX ("lstat_i4_sub")), void_type_node,
4076 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
4077 : gfc_charlen_type_node);
4078 :
4079 31863 : gfor_fndecl_lstat_i8_sub = gfc_build_library_function_decl (
4080 : get_identifier (PREFIX ("lstat_i8_sub")), void_type_node,
4081 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
4082 : gfc_charlen_type_node);
4083 :
4084 31863 : gfor_fndecl_stat_i4_sub = gfc_build_library_function_decl (
4085 : get_identifier (PREFIX ("stat_i4_sub")), void_type_node,
4086 : 4, pchar_type_node, gfc_pint4_type_node, gfc_pint4_type_node,
4087 : gfc_charlen_type_node);
4088 :
4089 31863 : gfor_fndecl_stat_i8_sub = gfc_build_library_function_decl (
4090 : get_identifier (PREFIX ("stat_i8_sub")), void_type_node,
4091 : 4, pchar_type_node, gfc_pint8_type_node, gfc_pint8_type_node,
4092 : gfc_charlen_type_node);
4093 31863 : }
4094 :
4095 :
4096 : /* Make prototypes for runtime library functions. */
4097 :
4098 : void
4099 31863 : gfc_build_builtin_function_decls (void)
4100 : {
4101 31863 : tree gfc_int8_type_node = gfc_get_int_type (8);
4102 :
4103 31863 : gfor_fndecl_stop_numeric = gfc_build_library_function_decl (
4104 : get_identifier (PREFIX("stop_numeric")),
4105 : void_type_node, 2, integer_type_node, boolean_type_node);
4106 : /* STOP doesn't return. */
4107 31863 : TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1;
4108 :
4109 31863 : gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec (
4110 : get_identifier (PREFIX("stop_string")), ". R . . ",
4111 : void_type_node, 3, pchar_type_node, size_type_node,
4112 : boolean_type_node);
4113 : /* STOP doesn't return. */
4114 31863 : TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1;
4115 :
4116 31863 : gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl (
4117 : get_identifier (PREFIX("error_stop_numeric")),
4118 : void_type_node, 2, integer_type_node, boolean_type_node);
4119 : /* ERROR STOP doesn't return. */
4120 31863 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1;
4121 :
4122 31863 : gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec (
4123 : get_identifier (PREFIX("error_stop_string")), ". R . . ",
4124 : void_type_node, 3, pchar_type_node, size_type_node,
4125 : boolean_type_node);
4126 : /* ERROR STOP doesn't return. */
4127 31863 : TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1;
4128 :
4129 31863 : gfor_fndecl_pause_numeric = gfc_build_library_function_decl (
4130 : get_identifier (PREFIX("pause_numeric")),
4131 : void_type_node, 1, gfc_int8_type_node);
4132 :
4133 31863 : gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec (
4134 : get_identifier (PREFIX("pause_string")), ". R . ",
4135 : void_type_node, 2, pchar_type_node, size_type_node);
4136 :
4137 31863 : gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec (
4138 : get_identifier (PREFIX("runtime_error")), ". R ",
4139 : void_type_node, -1, pchar_type_node);
4140 : /* The runtime_error function does not return. */
4141 31863 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1;
4142 :
4143 31863 : gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec (
4144 : get_identifier (PREFIX("runtime_error_at")), ". R R ",
4145 : void_type_node, -2, pchar_type_node, pchar_type_node);
4146 : /* The runtime_error_at function does not return. */
4147 31863 : TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1;
4148 :
4149 31863 : gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec (
4150 : get_identifier (PREFIX("runtime_warning_at")), ". R R ",
4151 : void_type_node, -2, pchar_type_node, pchar_type_node);
4152 :
4153 31863 : gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec (
4154 : get_identifier (PREFIX("generate_error")), ". W . R ",
4155 : void_type_node, 3, pvoid_type_node, integer_type_node,
4156 : pchar_type_node);
4157 :
4158 31863 : gfor_fndecl_os_error_at = gfc_build_library_function_decl_with_spec (
4159 : get_identifier (PREFIX("os_error_at")), ". R R ",
4160 : void_type_node, -2, pchar_type_node, pchar_type_node);
4161 : /* The os_error_at function does not return. */
4162 31863 : TREE_THIS_VOLATILE (gfor_fndecl_os_error_at) = 1;
4163 :
4164 31863 : gfor_fndecl_set_args = gfc_build_library_function_decl (
4165 : get_identifier (PREFIX("set_args")),
4166 : void_type_node, 2, integer_type_node,
4167 : build_pointer_type (pchar_type_node));
4168 :
4169 31863 : gfor_fndecl_set_fpe = gfc_build_library_function_decl (
4170 : get_identifier (PREFIX("set_fpe")),
4171 : void_type_node, 1, integer_type_node);
4172 :
4173 31863 : gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl (
4174 : get_identifier (PREFIX("ieee_procedure_entry")),
4175 : void_type_node, 1, pvoid_type_node);
4176 :
4177 31863 : gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl (
4178 : get_identifier (PREFIX("ieee_procedure_exit")),
4179 : void_type_node, 1, pvoid_type_node);
4180 :
4181 : /* Keep the array dimension in sync with the call, later in this file. */
4182 31863 : gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec (
4183 : get_identifier (PREFIX("set_options")), ". . R ",
4184 : void_type_node, 2, integer_type_node,
4185 : build_pointer_type (integer_type_node));
4186 :
4187 31863 : gfor_fndecl_set_convert = gfc_build_library_function_decl (
4188 : get_identifier (PREFIX("set_convert")),
4189 : void_type_node, 1, integer_type_node);
4190 :
4191 31863 : gfor_fndecl_set_record_marker = gfc_build_library_function_decl (
4192 : get_identifier (PREFIX("set_record_marker")),
4193 : void_type_node, 1, integer_type_node);
4194 :
4195 31863 : gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl (
4196 : get_identifier (PREFIX("set_max_subrecord_length")),
4197 : void_type_node, 1, integer_type_node);
4198 :
4199 31863 : gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec (
4200 : get_identifier (PREFIX("internal_pack")), ". r ",
4201 : pvoid_type_node, 1, pvoid_type_node);
4202 :
4203 31863 : gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec (
4204 : get_identifier (PREFIX("internal_unpack")), ". w R ",
4205 : void_type_node, 2, pvoid_type_node, pvoid_type_node);
4206 :
4207 31863 : gfor_fndecl_in_pack_class = gfc_build_library_function_decl_with_spec (
4208 : get_identifier (PREFIX ("internal_pack_class")), ". w R r r ",
4209 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4210 : integer_type_node);
4211 :
4212 31863 : gfor_fndecl_in_unpack_class = gfc_build_library_function_decl_with_spec (
4213 : get_identifier (PREFIX ("internal_unpack_class")), ". w R r r ",
4214 : void_type_node, 4, pvoid_type_node, pvoid_type_node, size_type_node,
4215 : integer_type_node);
4216 :
4217 31863 : gfor_fndecl_associated = gfc_build_library_function_decl_with_spec (
4218 : get_identifier (PREFIX ("associated")), ". R R ", integer_type_node, 2,
4219 : ppvoid_type_node, ppvoid_type_node);
4220 31863 : DECL_PURE_P (gfor_fndecl_associated) = 1;
4221 31863 : TREE_NOTHROW (gfor_fndecl_associated) = 1;
4222 :
4223 : /* Coarray library calls. */
4224 31863 : if (flag_coarray == GFC_FCOARRAY_LIB)
4225 : {
4226 467 : tree pint_type, pppchar_type, psize_type;
4227 :
4228 467 : pint_type = build_pointer_type (integer_type_node);
4229 467 : pppchar_type
4230 467 : = build_pointer_type (build_pointer_type (pchar_type_node));
4231 467 : psize_type = build_pointer_type (size_type_node);
4232 :
4233 467 : gfor_fndecl_caf_init = gfc_build_library_function_decl_with_spec (
4234 : get_identifier (PREFIX("caf_init")), ". W W ",
4235 : void_type_node, 2, pint_type, pppchar_type);
4236 :
4237 467 : gfor_fndecl_caf_finalize = gfc_build_library_function_decl (
4238 : get_identifier (PREFIX("caf_finalize")), void_type_node, 0);
4239 :
4240 467 : gfor_fndecl_caf_this_image = gfc_build_library_function_decl_with_spec (
4241 : get_identifier (PREFIX ("caf_this_image")), ". r ", integer_type_node,
4242 : 1, pvoid_type_node);
4243 :
4244 467 : gfor_fndecl_caf_num_images = gfc_build_library_function_decl (
4245 : get_identifier (PREFIX("caf_num_images")), integer_type_node,
4246 : 2, integer_type_node, integer_type_node);
4247 :
4248 467 : gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec (
4249 : get_identifier (PREFIX("caf_register")), ". . . W w w w . ",
4250 : void_type_node, 7,
4251 : size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node,
4252 : pint_type, pchar_type_node, size_type_node);
4253 :
4254 467 : gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec (
4255 : get_identifier (PREFIX("caf_deregister")), ". W . w w . ",
4256 : void_type_node, 5,
4257 : ppvoid_type_node, integer_type_node, pint_type, pchar_type_node,
4258 : size_type_node);
4259 :
4260 467 : gfor_fndecl_caf_register_accessor
4261 467 : = gfc_build_library_function_decl_with_spec (
4262 : get_identifier (PREFIX ("caf_register_accessor")), ". r r ",
4263 : void_type_node, 2, integer_type_node, pvoid_type_node);
4264 :
4265 467 : gfor_fndecl_caf_register_accessors_finish
4266 467 : = gfc_build_library_function_decl_with_spec (
4267 : get_identifier (PREFIX ("caf_register_accessors_finish")), ". ",
4268 : void_type_node, 0);
4269 :
4270 467 : gfor_fndecl_caf_get_remote_function_index
4271 467 : = gfc_build_library_function_decl_with_spec (
4272 : get_identifier (PREFIX ("caf_get_remote_function_index")), ". r ",
4273 : integer_type_node, 1, integer_type_node);
4274 :
4275 467 : gfor_fndecl_caf_get_from_remote
4276 467 : = gfc_build_library_function_decl_with_spec (
4277 : get_identifier (PREFIX ("caf_get_from_remote")),
4278 : ". r r r r r w w w r r w r w r r ", void_type_node, 15,
4279 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4280 : size_type_node, ppvoid_type_node, psize_type, pvoid_type_node,
4281 : boolean_type_node, integer_type_node, pvoid_type_node, size_type_node,
4282 : pint_type, pvoid_type_node, pint_type);
4283 :
4284 467 : gfor_fndecl_caf_send_to_remote
4285 467 : = gfc_build_library_function_decl_with_spec (
4286 : get_identifier (PREFIX ("caf_send_to_remote")),
4287 : ". r r r r r r r r r w r w r r ", void_type_node, 14, pvoid_type_node,
4288 : pvoid_type_node, psize_type, integer_type_node, size_type_node,
4289 : ppvoid_type_node, psize_type, pvoid_type_node, integer_type_node,
4290 : pvoid_type_node, size_type_node, pint_type, pvoid_type_node,
4291 : pint_type);
4292 :
4293 467 : gfor_fndecl_caf_transfer_between_remotes
4294 467 : = gfc_build_library_function_decl_with_spec (
4295 : get_identifier (PREFIX ("caf_transfer_between_remotes")),
4296 : ". r r r r r r r r r r r r r r r r w w r r ", void_type_node, 20,
4297 : pvoid_type_node, pvoid_type_node, psize_type, integer_type_node,
4298 : integer_type_node, pvoid_type_node, size_type_node, pvoid_type_node,
4299 : pvoid_type_node, psize_type, integer_type_node, integer_type_node,
4300 : pvoid_type_node, size_type_node, size_type_node, boolean_type_node,
4301 : pint_type, pint_type, pvoid_type_node, pint_type);
4302 :
4303 467 : gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec (
4304 : get_identifier (PREFIX ("caf_sync_all")), ". w w . ", void_type_node, 3,
4305 : pint_type, pchar_type_node, size_type_node);
4306 :
4307 467 : gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec (
4308 : get_identifier (PREFIX("caf_sync_memory")), ". w w . ", void_type_node,
4309 : 3, pint_type, pchar_type_node, size_type_node);
4310 :
4311 467 : gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec (
4312 : get_identifier (PREFIX("caf_sync_images")), ". . r w w . ", void_type_node,
4313 : 5, integer_type_node, pint_type, pint_type,
4314 : pchar_type_node, size_type_node);
4315 :
4316 467 : gfor_fndecl_caf_error_stop = gfc_build_library_function_decl (
4317 : get_identifier (PREFIX("caf_error_stop")),
4318 : void_type_node, 1, integer_type_node);
4319 : /* CAF's ERROR STOP doesn't return. */
4320 467 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1;
4321 :
4322 467 : gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec (
4323 : get_identifier (PREFIX("caf_error_stop_str")), ". r . ",
4324 : void_type_node, 2, pchar_type_node, size_type_node);
4325 : /* CAF's ERROR STOP doesn't return. */
4326 467 : TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1;
4327 :
4328 467 : gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl (
4329 : get_identifier (PREFIX("caf_stop_numeric")),
4330 : void_type_node, 1, integer_type_node);
4331 : /* CAF's STOP doesn't return. */
4332 467 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1;
4333 :
4334 467 : gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec (
4335 : get_identifier (PREFIX("caf_stop_str")), ". r . ",
4336 : void_type_node, 2, pchar_type_node, size_type_node);
4337 : /* CAF's STOP doesn't return. */
4338 467 : TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1;
4339 :
4340 467 : gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec (
4341 : get_identifier (PREFIX("caf_atomic_define")), ". r . . w w . . ",
4342 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4343 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4344 :
4345 467 : gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec (
4346 : get_identifier (PREFIX("caf_atomic_ref")), ". r . . w w . . ",
4347 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4348 : pvoid_type_node, pint_type, integer_type_node, integer_type_node);
4349 :
4350 467 : gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec (
4351 : get_identifier (PREFIX("caf_atomic_cas")), ". r . . w r r w . . ",
4352 : void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node,
4353 : pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4354 : integer_type_node, integer_type_node);
4355 :
4356 467 : gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec (
4357 : get_identifier (PREFIX("caf_atomic_op")), ". . r . . r w w . . ",
4358 : void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node,
4359 : integer_type_node, pvoid_type_node, pvoid_type_node, pint_type,
4360 : integer_type_node, integer_type_node);
4361 :
4362 467 : gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec (
4363 : get_identifier (PREFIX("caf_lock")), ". r . . w w w . ",
4364 : void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node,
4365 : pint_type, pint_type, pchar_type_node, size_type_node);
4366 :
4367 467 : gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec (
4368 : get_identifier (PREFIX("caf_unlock")), ". r . . w w . ",
4369 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4370 : pint_type, pchar_type_node, size_type_node);
4371 :
4372 467 : gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec (
4373 : get_identifier (PREFIX("caf_event_post")), ". r . . w w . ",
4374 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4375 : pint_type, pchar_type_node, size_type_node);
4376 :
4377 467 : gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec (
4378 : get_identifier (PREFIX("caf_event_wait")), ". r . . w w . ",
4379 : void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node,
4380 : pint_type, pchar_type_node, size_type_node);
4381 :
4382 467 : gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec (
4383 : get_identifier (PREFIX("caf_event_query")), ". r . . w w ",
4384 : void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node,
4385 : pint_type, pint_type);
4386 :
4387 467 : gfor_fndecl_caf_fail_image = gfc_build_library_function_decl (
4388 : get_identifier (PREFIX("caf_fail_image")), void_type_node, 0);
4389 : /* CAF's FAIL doesn't return. */
4390 467 : TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1;
4391 :
4392 467 : gfor_fndecl_caf_failed_images
4393 467 : = gfc_build_library_function_decl_with_spec (
4394 : get_identifier (PREFIX("caf_failed_images")), ". w . r ",
4395 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4396 : integer_type_node);
4397 :
4398 467 : gfor_fndecl_caf_form_team = gfc_build_library_function_decl_with_spec (
4399 : get_identifier (PREFIX ("caf_form_team")), ". r w r w w w ",
4400 : void_type_node, 6, integer_type_node, ppvoid_type_node, pint_type,
4401 : pint_type, pchar_type_node, size_type_node);
4402 :
4403 467 : gfor_fndecl_caf_change_team = gfc_build_library_function_decl_with_spec (
4404 : get_identifier (PREFIX ("caf_change_team")), ". r w w w ",
4405 : void_type_node, 4, pvoid_type_node, pint_type, pchar_type_node,
4406 : size_type_node);
4407 :
4408 467 : gfor_fndecl_caf_end_team = gfc_build_library_function_decl_with_spec (
4409 : get_identifier (PREFIX ("caf_end_team")), ". w w w ", void_type_node, 3,
4410 : pint_type, pchar_type_node, size_type_node);
4411 :
4412 467 : gfor_fndecl_caf_get_team = gfc_build_library_function_decl_with_spec (
4413 : get_identifier (PREFIX ("caf_get_team")), ". r ", pvoid_type_node, 1,
4414 : pint_type);
4415 :
4416 467 : gfor_fndecl_caf_sync_team = gfc_build_library_function_decl_with_spec (
4417 : get_identifier (PREFIX ("caf_sync_team")), ". r w w w ", void_type_node,
4418 : 4, pvoid_type_node, pint_type, pchar_type_node, size_type_node);
4419 :
4420 467 : gfor_fndecl_caf_team_number = gfc_build_library_function_decl_with_spec (
4421 : get_identifier (PREFIX ("caf_team_number")), ". r ", integer_type_node,
4422 : 1, pvoid_type_node);
4423 :
4424 467 : gfor_fndecl_caf_image_status = gfc_build_library_function_decl_with_spec (
4425 : get_identifier (PREFIX ("caf_image_status")), ". r r ",
4426 : integer_type_node, 2, integer_type_node, ppvoid_type_node);
4427 :
4428 467 : gfor_fndecl_caf_stopped_images
4429 467 : = gfc_build_library_function_decl_with_spec (
4430 : get_identifier (PREFIX("caf_stopped_images")), ". w r r ",
4431 : void_type_node, 3, pvoid_type_node, ppvoid_type_node,
4432 : integer_type_node);
4433 :
4434 467 : gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec (
4435 : get_identifier (PREFIX("caf_co_broadcast")), ". w . w w . ",
4436 : void_type_node, 5, pvoid_type_node, integer_type_node,
4437 : pint_type, pchar_type_node, size_type_node);
4438 :
4439 467 : gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec (
4440 : get_identifier (PREFIX("caf_co_max")), ". w . w w . . ",
4441 : void_type_node, 6, pvoid_type_node, integer_type_node,
4442 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4443 :
4444 467 : gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec (
4445 : get_identifier (PREFIX("caf_co_min")), ". w . w w . . ",
4446 : void_type_node, 6, pvoid_type_node, integer_type_node,
4447 : pint_type, pchar_type_node, integer_type_node, size_type_node);
4448 :
4449 467 : gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec (
4450 : get_identifier (PREFIX("caf_co_reduce")), ". w r . . w w . . ",
4451 : void_type_node, 8, pvoid_type_node,
4452 : build_pointer_type (build_varargs_function_type_list (void_type_node,
4453 : NULL_TREE)),
4454 : integer_type_node, integer_type_node, pint_type, pchar_type_node,
4455 : integer_type_node, size_type_node);
4456 :
4457 467 : gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec (
4458 : get_identifier (PREFIX("caf_co_sum")), ". w . w w . ",
4459 : void_type_node, 5, pvoid_type_node, integer_type_node,
4460 : pint_type, pchar_type_node, size_type_node);
4461 :
4462 467 : gfor_fndecl_caf_is_present_on_remote
4463 467 : = gfc_build_library_function_decl_with_spec (
4464 : get_identifier (PREFIX ("caf_is_present_on_remote")), ". r r r r r ",
4465 : integer_type_node, 5, pvoid_type_node, integer_type_node,
4466 : integer_type_node, pvoid_type_node, size_type_node);
4467 :
4468 467 : gfor_fndecl_caf_random_init = gfc_build_library_function_decl (
4469 : get_identifier (PREFIX("caf_random_init")),
4470 : void_type_node, 2, logical_type_node, logical_type_node);
4471 : }
4472 :
4473 31863 : gfc_build_intrinsic_function_decls ();
4474 31863 : gfc_build_intrinsic_lib_fndecls ();
4475 31863 : gfc_build_io_library_fndecls ();
4476 31863 : }
4477 :
4478 :
4479 : /* Evaluate the length of dummy character variables. */
4480 :
4481 : static void
4482 774 : gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl,
4483 : gfc_wrapped_block *block)
4484 : {
4485 774 : stmtblock_t init;
4486 :
4487 774 : gfc_finish_decl (cl->backend_decl);
4488 :
4489 774 : gfc_start_block (&init);
4490 :
4491 : /* Evaluate the string length expression. */
4492 774 : gfc_conv_string_length (cl, NULL, &init);
4493 :
4494 774 : gfc_trans_vla_type_sizes (sym, &init);
4495 :
4496 774 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4497 774 : }
4498 :
4499 :
4500 : /* Allocate and cleanup an automatic character variable. */
4501 :
4502 : static void
4503 354 : gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block)
4504 : {
4505 354 : stmtblock_t init;
4506 354 : tree decl;
4507 354 : tree tmp;
4508 354 : bool back;
4509 :
4510 354 : gcc_assert (sym->backend_decl);
4511 354 : gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length);
4512 :
4513 354 : gfc_init_block (&init);
4514 :
4515 : /* In the case of non-dummy symbols with dependencies on an old-fashioned
4516 : function result (ie. proc_name = proc_name->result), gfc_add_init_cleanup
4517 : must be called with the last, optional argument false so that the process
4518 : ing of the character length occurs after the processing of the result. */
4519 354 : back = sym->fn_result_dep;
4520 :
4521 : /* Evaluate the string length expression. */
4522 354 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
4523 :
4524 354 : gfc_trans_vla_type_sizes (sym, &init);
4525 :
4526 354 : decl = sym->backend_decl;
4527 :
4528 : /* Emit a DECL_EXPR for this variable, which will cause the
4529 : gimplifier to allocate storage, and all that good stuff. */
4530 354 : tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl);
4531 354 : gfc_add_expr_to_block (&init, tmp);
4532 :
4533 354 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE, back);
4534 354 : }
4535 :
4536 : /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */
4537 :
4538 : static void
4539 64 : gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block)
4540 : {
4541 64 : stmtblock_t init;
4542 :
4543 64 : gcc_assert (sym->backend_decl);
4544 64 : gfc_start_block (&init);
4545 :
4546 : /* Set the initial value to length. See the comments in
4547 : function gfc_add_assign_aux_vars in this file. */
4548 64 : gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl),
4549 : build_int_cst (gfc_charlen_type_node, -2));
4550 :
4551 64 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4552 64 : }
4553 :
4554 : static void
4555 164274 : gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body)
4556 : {
4557 164274 : tree t = *tp, var, val;
4558 :
4559 164274 : if (t == NULL || t == error_mark_node)
4560 : return;
4561 154215 : if (TREE_CONSTANT (t) || DECL_P (t))
4562 : return;
4563 :
4564 63668 : if (TREE_CODE (t) == SAVE_EXPR)
4565 : {
4566 36596 : if (SAVE_EXPR_RESOLVED_P (t))
4567 : {
4568 0 : *tp = TREE_OPERAND (t, 0);
4569 0 : return;
4570 : }
4571 36596 : val = TREE_OPERAND (t, 0);
4572 : }
4573 : else
4574 : val = t;
4575 :
4576 63668 : var = gfc_create_var_np (TREE_TYPE (t), NULL);
4577 63668 : gfc_add_decl_to_function (var);
4578 63668 : gfc_add_modify (body, var, unshare_expr (val));
4579 63668 : if (TREE_CODE (t) == SAVE_EXPR)
4580 36596 : TREE_OPERAND (t, 0) = var;
4581 63668 : *tp = var;
4582 : }
4583 :
4584 : static void
4585 91745 : gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body)
4586 : {
4587 91745 : tree t;
4588 :
4589 91745 : if (type == NULL || type == error_mark_node)
4590 : return;
4591 :
4592 91745 : type = TYPE_MAIN_VARIANT (type);
4593 :
4594 91745 : if (TREE_CODE (type) == INTEGER_TYPE)
4595 : {
4596 50875 : gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body);
4597 50875 : gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body);
4598 :
4599 65780 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4600 : {
4601 14905 : TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type);
4602 14905 : TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type);
4603 : }
4604 : }
4605 40870 : else if (TREE_CODE (type) == ARRAY_TYPE)
4606 : {
4607 31262 : gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body);
4608 31262 : gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body);
4609 31262 : gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body);
4610 31262 : gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body);
4611 :
4612 31262 : for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t))
4613 : {
4614 0 : TYPE_SIZE (t) = TYPE_SIZE (type);
4615 0 : TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type);
4616 : }
4617 : }
4618 : }
4619 :
4620 : /* Make sure all type sizes and array domains are either constant,
4621 : or variable or parameter decls. This is a simplified variant
4622 : of gimplify_type_sizes, but we can't use it here, as none of the
4623 : variables in the expressions have been gimplified yet.
4624 : As type sizes and domains for various variable length arrays
4625 : contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars
4626 : time, without this routine gimplify_type_sizes in the middle-end
4627 : could result in the type sizes being gimplified earlier than where
4628 : those variables are initialized. */
4629 :
4630 : void
4631 27729 : gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body)
4632 : {
4633 27729 : tree type = TREE_TYPE (sym->backend_decl);
4634 :
4635 27729 : if (TREE_CODE (type) == FUNCTION_TYPE
4636 1105 : && (sym->attr.function || sym->attr.result || sym->attr.entry))
4637 : {
4638 1105 : if (! current_fake_result_decl)
4639 : return;
4640 :
4641 1105 : type = TREE_TYPE (TREE_VALUE (current_fake_result_decl));
4642 : }
4643 :
4644 54595 : while (POINTER_TYPE_P (type))
4645 26866 : type = TREE_TYPE (type);
4646 :
4647 27729 : if (GFC_DESCRIPTOR_TYPE_P (type))
4648 : {
4649 1492 : tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type);
4650 :
4651 2984 : while (POINTER_TYPE_P (etype))
4652 1492 : etype = TREE_TYPE (etype);
4653 :
4654 1492 : gfc_trans_vla_type_sizes_1 (etype, body);
4655 : }
4656 :
4657 27729 : gfc_trans_vla_type_sizes_1 (type, body);
4658 : }
4659 :
4660 :
4661 : /* Initialize a derived type by building an lvalue from the symbol
4662 : and using trans_assignment to do the work. Set dealloc to false
4663 : if no deallocation prior the assignment is needed. */
4664 : void
4665 1519 : gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc,
4666 : bool pdt_ok)
4667 : {
4668 1519 : gfc_expr *e;
4669 1519 : tree tmp;
4670 1519 : tree present;
4671 :
4672 1519 : gcc_assert (block);
4673 :
4674 : /* Initialization of PDTs is done elsewhere. */
4675 1519 : if (IS_PDT (sym) && !pdt_ok)
4676 : return;
4677 :
4678 1178 : gcc_assert (!sym->attr.allocatable);
4679 1178 : gfc_set_sym_referenced (sym);
4680 1178 : e = gfc_lval_expr_from_sym (sym);
4681 1178 : tmp = gfc_trans_assignment (e, sym->value, false, dealloc);
4682 1178 : if (sym->attr.dummy && (sym->attr.optional
4683 241 : || sym->ns->proc_name->attr.entry_master))
4684 : {
4685 39 : present = gfc_conv_expr_present (sym);
4686 39 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present,
4687 : tmp, build_empty_stmt (input_location));
4688 : }
4689 1178 : gfc_add_expr_to_block (block, tmp);
4690 1178 : gfc_free_expr (e);
4691 : }
4692 :
4693 :
4694 : /* Initialize a PDT, either when the symbol has a value or when all the
4695 : components have an initializer. */
4696 : static tree
4697 576 : gfc_init_default_pdt (gfc_symbol *sym, bool dealloc)
4698 : {
4699 576 : stmtblock_t block;
4700 576 : tree tmp;
4701 576 : gfc_component *c;
4702 :
4703 576 : if (sym->value && sym->value->symtree
4704 12 : && sym->value->symtree->n.sym
4705 12 : && !sym->value->symtree->n.sym->attr.artificial)
4706 : {
4707 12 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym),
4708 : sym->value, false, false, true);
4709 12 : return tmp;
4710 : }
4711 :
4712 564 : if (!dealloc || !sym->value)
4713 : return NULL_TREE;
4714 :
4715 : /* Allowed in the case where all the components have initializers and
4716 : there are no LEN components. */
4717 348 : c = sym->ts.u.derived->components;
4718 575 : for (; c; c = c->next)
4719 549 : if (c->attr.pdt_len || !c->initializer)
4720 : return NULL_TREE;
4721 :
4722 26 : gfc_init_block (&block);
4723 26 : gfc_init_default_dt (sym, &block, dealloc, true);
4724 26 : return gfc_finish_block (&block);
4725 : }
4726 :
4727 :
4728 : /* Initialize INTENT(OUT) derived type dummies. As well as giving
4729 : them their default initializer, if they have allocatable
4730 : components, they have their allocatable components deallocated. */
4731 :
4732 : static void
4733 100272 : init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4734 : {
4735 100272 : stmtblock_t init;
4736 100272 : gfc_formal_arglist *f;
4737 100272 : tree tmp;
4738 100272 : tree present;
4739 100272 : gfc_symbol *s;
4740 :
4741 100272 : gfc_init_block (&init);
4742 202923 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
4743 102651 : if (f->sym && f->sym->attr.intent == INTENT_OUT
4744 4027 : && !f->sym->attr.pointer
4745 3973 : && f->sym->ts.type == BT_DERIVED)
4746 : {
4747 516 : s = f->sym;
4748 516 : tmp = NULL_TREE;
4749 :
4750 : /* Note: Allocatables are excluded as they are already handled
4751 : by the caller. */
4752 516 : if (!f->sym->attr.allocatable
4753 516 : && gfc_is_finalizable (s->ts.u.derived, NULL))
4754 : {
4755 38 : stmtblock_t block;
4756 38 : gfc_expr *e;
4757 :
4758 38 : gfc_init_block (&block);
4759 38 : s->attr.referenced = 1;
4760 38 : e = gfc_lval_expr_from_sym (s);
4761 38 : gfc_add_finalizer_call (&block, e);
4762 38 : gfc_free_expr (e);
4763 38 : tmp = gfc_finish_block (&block);
4764 : }
4765 :
4766 : /* Note: Allocatables are excluded as they are already handled
4767 : by the caller. */
4768 516 : if (tmp == NULL_TREE && !s->attr.allocatable
4769 358 : && s->ts.u.derived->attr.alloc_comp)
4770 126 : tmp = gfc_deallocate_alloc_comp (s->ts.u.derived,
4771 : s->backend_decl,
4772 126 : s->as ? s->as->rank : 0);
4773 :
4774 516 : if (tmp != NULL_TREE && (s->attr.optional
4775 145 : || s->ns->proc_name->attr.entry_master))
4776 : {
4777 19 : present = gfc_conv_expr_present (s);
4778 19 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4779 : present, tmp, build_empty_stmt (input_location));
4780 : }
4781 :
4782 516 : gfc_add_expr_to_block (&init, tmp);
4783 516 : if (s->value && !s->attr.allocatable)
4784 273 : gfc_init_default_dt (s, &init, false);
4785 : }
4786 102135 : else if (f->sym && f->sym->attr.intent == INTENT_OUT
4787 3511 : && f->sym->ts.type == BT_CLASS
4788 624 : && !CLASS_DATA (f->sym)->attr.class_pointer
4789 605 : && !CLASS_DATA (f->sym)->attr.allocatable)
4790 : {
4791 400 : stmtblock_t block;
4792 400 : gfc_expr *e;
4793 :
4794 400 : gfc_init_block (&block);
4795 400 : f->sym->attr.referenced = 1;
4796 400 : e = gfc_lval_expr_from_sym (f->sym);
4797 400 : gfc_add_finalizer_call (&block, e);
4798 400 : gfc_free_expr (e);
4799 400 : tmp = gfc_finish_block (&block);
4800 :
4801 400 : if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master)
4802 : {
4803 6 : present = gfc_conv_expr_present (f->sym);
4804 6 : tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp),
4805 : present, tmp,
4806 : build_empty_stmt (input_location));
4807 : }
4808 400 : gfc_add_expr_to_block (&init, tmp);
4809 : }
4810 100272 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
4811 100272 : }
4812 :
4813 :
4814 : /* Helper function to manage deferred string lengths. */
4815 :
4816 : static tree
4817 168 : gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init,
4818 : location_t loc)
4819 : {
4820 168 : tree tmp;
4821 :
4822 : /* Character length passed by reference. */
4823 168 : tmp = sym->ts.u.cl->passed_length;
4824 168 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
4825 168 : tmp = fold_convert (gfc_charlen_type_node, tmp);
4826 :
4827 168 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
4828 : /* Zero the string length when entering the scope. */
4829 168 : gfc_add_modify (init, sym->ts.u.cl->backend_decl,
4830 : build_int_cst (gfc_charlen_type_node, 0));
4831 : else
4832 : {
4833 0 : tree tmp2;
4834 :
4835 0 : tmp2 = fold_build2_loc (input_location, MODIFY_EXPR,
4836 : gfc_charlen_type_node,
4837 0 : sym->ts.u.cl->backend_decl, tmp);
4838 0 : if (sym->attr.optional)
4839 : {
4840 0 : tree present = gfc_conv_expr_present (sym);
4841 0 : tmp2 = build3_loc (input_location, COND_EXPR,
4842 : void_type_node, present, tmp2,
4843 : build_empty_stmt (input_location));
4844 : }
4845 0 : gfc_add_expr_to_block (init, tmp2);
4846 : }
4847 :
4848 168 : input_location = loc;
4849 :
4850 : /* Pass the final character length back. */
4851 168 : if (sym->attr.intent != INTENT_IN)
4852 : {
4853 336 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
4854 : gfc_charlen_type_node, tmp,
4855 168 : sym->ts.u.cl->backend_decl);
4856 168 : if (sym->attr.optional)
4857 : {
4858 0 : tree present = gfc_conv_expr_present (sym);
4859 0 : tmp = build3_loc (input_location, COND_EXPR,
4860 : void_type_node, present, tmp,
4861 : build_empty_stmt (input_location));
4862 : }
4863 : }
4864 : else
4865 : tmp = NULL_TREE;
4866 :
4867 168 : return tmp;
4868 : }
4869 :
4870 :
4871 : /* Get the result expression for a procedure. */
4872 :
4873 : static tree
4874 25568 : get_proc_result (gfc_symbol* sym)
4875 : {
4876 25568 : if (sym->attr.subroutine || sym == sym->result)
4877 : {
4878 12797 : if (current_fake_result_decl != NULL)
4879 12608 : return TREE_VALUE (current_fake_result_decl);
4880 :
4881 : return NULL_TREE;
4882 : }
4883 :
4884 12771 : return sym->result->backend_decl;
4885 : }
4886 :
4887 :
4888 : /* Generate function entry and exit code, and add it to the function body.
4889 : This includes:
4890 : Allocation and initialization of array variables.
4891 : Allocation of character string variables.
4892 : Initialization and possibly repacking of dummy arrays.
4893 : Initialization of ASSIGN statement auxiliary variable.
4894 : Initialization of ASSOCIATE names.
4895 : Automatic deallocation. */
4896 :
4897 : void
4898 100272 : gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block)
4899 : {
4900 100272 : location_t loc;
4901 100272 : gfc_symbol *sym;
4902 100272 : gfc_formal_arglist *f;
4903 100272 : stmtblock_t tmpblock;
4904 100272 : bool seen_trans_deferred_array = false;
4905 100272 : bool is_pdt_type = false;
4906 100272 : tree tmp = NULL;
4907 100272 : gfc_expr *e;
4908 100272 : gfc_se se;
4909 100272 : stmtblock_t init;
4910 :
4911 : /* Deal with implicit return variables. Explicit return variables will
4912 : already have been added. */
4913 100272 : if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym)
4914 : {
4915 1694 : if (!current_fake_result_decl)
4916 : {
4917 81 : gfc_entry_list *el = NULL;
4918 81 : if (proc_sym->attr.entry_master)
4919 : {
4920 46 : for (el = proc_sym->ns->entries; el; el = el->next)
4921 46 : if (el->sym != el->sym->result)
4922 : break;
4923 : }
4924 : /* TODO: move to the appropriate place in resolve.cc. */
4925 81 : if (warn_return_type > 0 && el == NULL)
4926 4 : gfc_warning (OPT_Wreturn_type,
4927 : "Return value of function %qs at %L not set",
4928 : proc_sym->name, &proc_sym->declared_at);
4929 : }
4930 1613 : else if (proc_sym->as)
4931 : {
4932 807 : tree result = TREE_VALUE (current_fake_result_decl);
4933 807 : loc = input_location;
4934 807 : input_location = gfc_get_location (&proc_sym->declared_at);
4935 807 : gfc_trans_dummy_array_bias (proc_sym, result, block);
4936 :
4937 : /* An automatic character length, pointer array result. */
4938 807 : if (proc_sym->ts.type == BT_CHARACTER
4939 69 : && VAR_P (proc_sym->ts.u.cl->backend_decl))
4940 : {
4941 51 : tmp = NULL;
4942 51 : if (proc_sym->ts.deferred)
4943 : {
4944 12 : gfc_start_block (&init);
4945 12 : tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, loc);
4946 12 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
4947 : }
4948 : else
4949 39 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
4950 : }
4951 : }
4952 806 : else if (proc_sym->ts.type == BT_CHARACTER)
4953 : {
4954 770 : if (proc_sym->ts.deferred)
4955 : {
4956 91 : tmp = NULL;
4957 91 : loc = input_location;
4958 91 : input_location = gfc_get_location (&proc_sym->declared_at);
4959 91 : gfc_start_block (&init);
4960 : /* Zero the string length on entry. */
4961 91 : gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl,
4962 : build_int_cst (gfc_charlen_type_node, 0));
4963 : /* Null the pointer. */
4964 91 : e = gfc_lval_expr_from_sym (proc_sym);
4965 91 : gfc_init_se (&se, NULL);
4966 91 : se.want_pointer = 1;
4967 91 : gfc_conv_expr (&se, e);
4968 91 : gfc_free_expr (e);
4969 91 : tmp = se.expr;
4970 91 : gfc_add_modify (&init, tmp,
4971 91 : fold_convert (TREE_TYPE (se.expr),
4972 : null_pointer_node));
4973 91 : input_location = loc;
4974 :
4975 : /* Pass back the string length on exit. */
4976 91 : tmp = proc_sym->ts.u.cl->backend_decl;
4977 91 : if (TREE_CODE (tmp) != INDIRECT_REF
4978 91 : && proc_sym->ts.u.cl->passed_length)
4979 : {
4980 91 : tmp = proc_sym->ts.u.cl->passed_length;
4981 91 : tmp = build_fold_indirect_ref_loc (input_location, tmp);
4982 182 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
4983 91 : TREE_TYPE (tmp), tmp,
4984 91 : fold_convert
4985 : (TREE_TYPE (tmp),
4986 : proc_sym->ts.u.cl->backend_decl));
4987 : }
4988 : else
4989 : tmp = NULL_TREE;
4990 :
4991 91 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
4992 : }
4993 679 : else if (VAR_P (proc_sym->ts.u.cl->backend_decl))
4994 393 : gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block);
4995 : }
4996 : else
4997 36 : gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX);
4998 : }
4999 98578 : else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym))
5000 : {
5001 : /* Nullify explicit return class arrays on entry. */
5002 34 : tree type;
5003 34 : tmp = get_proc_result (proc_sym);
5004 34 : if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp)))
5005 : {
5006 34 : gfc_start_block (&init);
5007 34 : tmp = gfc_class_data_get (tmp);
5008 34 : type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp));
5009 34 : gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0));
5010 34 : gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE);
5011 : }
5012 : }
5013 :
5014 100272 : sym = (proc_sym->attr.function
5015 100272 : && proc_sym != proc_sym->result) ? proc_sym->result : NULL;
5016 :
5017 7458 : if (sym && !sym->attr.allocatable && !sym->attr.pointer
5018 6815 : && sym->attr.referenced
5019 14175 : && IS_PDT (sym) && !gfc_has_default_initializer (sym->ts.u.derived))
5020 : {
5021 6 : gfc_init_block (&tmpblock);
5022 6 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
5023 : sym->backend_decl,
5024 6 : sym->as ? sym->as->rank : 0,
5025 6 : sym->param_list);
5026 6 : gfc_add_expr_to_block (&tmpblock, tmp);
5027 6 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5028 : }
5029 :
5030 : /* Initialize the INTENT(OUT) derived type dummy arguments. This
5031 : should be done here so that the offsets and lbounds of arrays
5032 : are available. */
5033 100272 : loc = input_location;
5034 100272 : input_location = gfc_get_location (&proc_sym->declared_at);
5035 100272 : init_intent_out_dt (proc_sym, block);
5036 100272 : input_location = loc;
5037 :
5038 : /* For some reasons, internal procedures point to the parent's
5039 : namespace. Top-level procedure and variables inside BLOCK are fine. */
5040 100272 : gfc_namespace *omp_ns = proc_sym->ns;
5041 100272 : if (proc_sym->ns->proc_name != proc_sym)
5042 201339 : for (omp_ns = proc_sym->ns->contained; omp_ns;
5043 164517 : omp_ns = omp_ns->sibling)
5044 201216 : if (omp_ns->proc_name == proc_sym)
5045 : break;
5046 :
5047 : /* Add 'omp allocate' attribute for gfc_trans_auto_array_allocation and
5048 : unset attr.omp_allocate for 'omp allocate allocator(omp_default_mem_alloc),
5049 : which has the normal codepath except for an invalid-use check in the ME.
5050 : The main processing happens later in this function. */
5051 100272 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5052 100327 : n; n = n->next)
5053 55 : if (!TREE_STATIC (n->sym->backend_decl))
5054 : {
5055 : /* Add empty entries - described and to be filled below. */
5056 36 : tree tmp = build_tree_list (NULL_TREE, NULL_TREE);
5057 36 : TREE_CHAIN (tmp) = build_tree_list (NULL_TREE, NULL_TREE);
5058 36 : DECL_ATTRIBUTES (n->sym->backend_decl)
5059 36 : = tree_cons (get_identifier ("omp allocate"), tmp,
5060 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5061 36 : if (n->u.align == NULL
5062 29 : && n->u2.allocator != NULL
5063 7 : && n->u2.allocator->expr_type == EXPR_CONSTANT
5064 2 : && mpz_cmp_si (n->u2.allocator->value.integer, 1) == 0)
5065 1 : n->sym->attr.omp_allocate = 0;
5066 : }
5067 :
5068 175653 : for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink)
5069 : {
5070 75381 : bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED)
5071 75381 : && (sym->ts.u.derived->attr.alloc_comp
5072 6112 : || gfc_is_finalizable (sym->ts.u.derived,
5073 75381 : NULL));
5074 75381 : if (sym->assoc || sym->attr.vtab)
5075 5150 : continue;
5076 :
5077 : /* Set the vptr of unlimited polymorphic pointer variables so that
5078 : they do not cause segfaults in select type, when the selector
5079 : is an intrinsic type. */
5080 70231 : if (sym->ts.type == BT_CLASS && UNLIMITED_POLY (sym)
5081 1042 : && sym->attr.flavor == FL_VARIABLE && !sym->assoc
5082 1042 : && !sym->attr.dummy && CLASS_DATA (sym)->attr.class_pointer)
5083 : {
5084 314 : gfc_symbol *vtab;
5085 314 : gfc_init_block (&tmpblock);
5086 314 : vtab = gfc_find_vtab (&sym->ts);
5087 314 : if (!vtab->backend_decl)
5088 : {
5089 48 : if (!vtab->attr.referenced)
5090 6 : gfc_set_sym_referenced (vtab);
5091 48 : gfc_get_symbol_decl (vtab);
5092 : }
5093 314 : tmp = gfc_class_vptr_get (sym->backend_decl);
5094 314 : gfc_add_modify (&tmpblock, tmp,
5095 314 : gfc_build_addr_expr (TREE_TYPE (tmp),
5096 : vtab->backend_decl));
5097 314 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5098 : }
5099 :
5100 70231 : if (sym->ts.type == BT_DERIVED
5101 11084 : && sym->ts.u.derived
5102 11084 : && (sym->ts.u.derived->attr.pdt_type || sym->ts.u.derived->attr.pdt_comp))
5103 : {
5104 766 : is_pdt_type = true;
5105 766 : gfc_init_block (&tmpblock);
5106 :
5107 766 : if (!sym->attr.dummy && !sym->attr.pointer)
5108 : {
5109 576 : tmp = gfc_init_default_pdt (sym, true);
5110 576 : if (!sym->attr.allocatable && tmp == NULL_TREE)
5111 : {
5112 418 : tmp = gfc_allocate_pdt_comp (sym->ts.u.derived,
5113 : sym->backend_decl,
5114 418 : sym->as ? sym->as->rank : 0,
5115 418 : sym->param_list);
5116 418 : gfc_add_expr_to_block (&tmpblock, tmp);
5117 : }
5118 120 : else if (tmp != NULL_TREE)
5119 38 : gfc_add_expr_to_block (&tmpblock, tmp);
5120 :
5121 576 : if (!sym->attr.result && !sym->ts.u.derived->attr.alloc_comp)
5122 451 : tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived,
5123 : sym->backend_decl,
5124 451 : sym->as ? sym->as->rank : 0);
5125 : else
5126 : tmp = NULL_TREE;
5127 :
5128 576 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5129 : }
5130 190 : else if (sym->attr.dummy)
5131 : {
5132 68 : tmp = gfc_check_pdt_dummy (sym->ts.u.derived,
5133 : sym->backend_decl,
5134 68 : sym->as ? sym->as->rank : 0,
5135 68 : sym->param_list);
5136 68 : gfc_add_expr_to_block (&tmpblock, tmp);
5137 68 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5138 : }
5139 : }
5140 69465 : else if (IS_CLASS_PDT (sym))
5141 : {
5142 18 : gfc_component *data = CLASS_DATA (sym);
5143 18 : is_pdt_type = true;
5144 18 : gfc_init_block (&tmpblock);
5145 18 : if (!(sym->attr.dummy
5146 18 : || CLASS_DATA (sym)->attr.pointer
5147 18 : || CLASS_DATA (sym)->attr.allocatable))
5148 : {
5149 0 : tmp = gfc_class_data_get (sym->backend_decl);
5150 0 : tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp,
5151 0 : data->as ? data->as->rank : 0,
5152 0 : sym->param_list);
5153 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5154 0 : tmp = gfc_class_data_get (sym->backend_decl);
5155 0 : if (!sym->attr.result)
5156 0 : tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp,
5157 0 : data->as ? data->as->rank : 0);
5158 : else
5159 : tmp = NULL_TREE;
5160 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp);
5161 : }
5162 18 : else if (sym->attr.dummy)
5163 : {
5164 0 : tmp = gfc_class_data_get (sym->backend_decl);
5165 0 : tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp,
5166 0 : data->as ? data->as->rank : 0,
5167 0 : sym->param_list);
5168 0 : gfc_add_expr_to_block (&tmpblock, tmp);
5169 0 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL);
5170 : }
5171 : }
5172 :
5173 70231 : if (sym->ts.type == BT_CLASS
5174 3882 : && (sym->attr.save || flag_max_stack_var_size == 0)
5175 58 : && CLASS_DATA (sym)->attr.allocatable)
5176 : {
5177 40 : tree vptr;
5178 :
5179 40 : if (UNLIMITED_POLY (sym))
5180 0 : vptr = null_pointer_node;
5181 : else
5182 : {
5183 40 : gfc_symbol *vsym;
5184 40 : vsym = gfc_find_derived_vtab (sym->ts.u.derived);
5185 40 : vptr = gfc_get_symbol_decl (vsym);
5186 40 : vptr = gfc_build_addr_expr (NULL, vptr);
5187 : }
5188 :
5189 40 : if (CLASS_DATA (sym)->attr.dimension
5190 8 : || (CLASS_DATA (sym)->attr.codimension
5191 1 : && flag_coarray != GFC_FCOARRAY_LIB))
5192 : {
5193 33 : tmp = gfc_class_data_get (sym->backend_decl);
5194 33 : tmp = gfc_build_null_descriptor (TREE_TYPE (tmp));
5195 : }
5196 : else
5197 7 : tmp = null_pointer_node;
5198 :
5199 40 : DECL_INITIAL (sym->backend_decl)
5200 40 : = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp);
5201 40 : TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1;
5202 40 : }
5203 70191 : else if ((sym->attr.dimension || sym->attr.codimension
5204 12745 : || (IS_CLASS_COARRAY_OR_ARRAY (sym)
5205 2049 : && !CLASS_DATA (sym)->attr.allocatable)))
5206 : {
5207 58350 : bool is_classarray = IS_CLASS_COARRAY_OR_ARRAY (sym);
5208 58350 : symbol_attribute *array_attr;
5209 58350 : gfc_array_spec *as;
5210 58350 : array_type type_of_array;
5211 :
5212 58350 : array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr;
5213 58350 : as = is_classarray ? CLASS_DATA (sym)->as : sym->as;
5214 : /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */
5215 58350 : type_of_array = as->type;
5216 58350 : if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed)
5217 : type_of_array = AS_EXPLICIT;
5218 58279 : switch (type_of_array)
5219 : {
5220 38509 : case AS_EXPLICIT:
5221 38509 : if (sym->attr.dummy || sym->attr.result)
5222 6322 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5223 : /* Allocatable and pointer arrays need to processed
5224 : explicitly. */
5225 32187 : else if ((sym->ts.type != BT_CLASS && sym->attr.pointer)
5226 32187 : || (sym->ts.type == BT_CLASS
5227 0 : && CLASS_DATA (sym)->attr.class_pointer)
5228 32187 : || array_attr->allocatable)
5229 : {
5230 0 : if (TREE_STATIC (sym->backend_decl))
5231 : {
5232 0 : loc = input_location;
5233 0 : input_location = gfc_get_location (&sym->declared_at);
5234 0 : gfc_trans_static_array_pointer (sym);
5235 0 : input_location = loc;
5236 : }
5237 : else
5238 : {
5239 0 : seen_trans_deferred_array = true;
5240 0 : gfc_trans_deferred_array (sym, block);
5241 : }
5242 : }
5243 32187 : else if (sym->attr.codimension
5244 464 : && TREE_STATIC (sym->backend_decl))
5245 : {
5246 403 : gfc_init_block (&tmpblock);
5247 403 : gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl),
5248 : &tmpblock, sym);
5249 403 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5250 : NULL_TREE);
5251 403 : continue;
5252 : }
5253 31784 : else if (sym->attr.codimension && !sym->attr.dimension)
5254 : {
5255 : /* Scalar coarrays do not need array allocation. */
5256 39 : continue;
5257 : }
5258 : else
5259 : {
5260 31745 : loc = input_location;
5261 31745 : input_location = gfc_get_location (&sym->declared_at);
5262 :
5263 31745 : if (alloc_comp_or_fini)
5264 : {
5265 521 : seen_trans_deferred_array = true;
5266 521 : gfc_trans_deferred_array (sym, block);
5267 : }
5268 31224 : else if (sym->ts.type == BT_DERIVED
5269 1811 : && sym->value
5270 556 : && !sym->attr.data
5271 530 : && sym->attr.save == SAVE_NONE)
5272 : {
5273 301 : gfc_start_block (&tmpblock);
5274 301 : gfc_init_default_dt (sym, &tmpblock, false);
5275 301 : gfc_add_init_cleanup (block,
5276 : gfc_finish_block (&tmpblock),
5277 : NULL_TREE);
5278 : }
5279 :
5280 31745 : gfc_trans_auto_array_allocation (sym->backend_decl,
5281 : sym, block);
5282 31745 : input_location = loc;
5283 : }
5284 : break;
5285 :
5286 1533 : case AS_ASSUMED_SIZE:
5287 : /* Must be a dummy parameter. */
5288 1533 : gcc_assert (sym->attr.dummy || as->cp_was_assumed);
5289 :
5290 : /* We should always pass assumed size arrays the g77 way. */
5291 1533 : if (sym->attr.dummy)
5292 1533 : gfc_trans_g77_array (sym, block);
5293 : break;
5294 :
5295 5876 : case AS_ASSUMED_SHAPE:
5296 : /* Must be a dummy parameter. */
5297 5876 : gcc_assert (sym->attr.dummy);
5298 :
5299 5876 : gfc_trans_dummy_array_bias (sym, sym->backend_decl, block);
5300 5876 : break;
5301 :
5302 12432 : case AS_ASSUMED_RANK:
5303 12432 : case AS_DEFERRED:
5304 12432 : seen_trans_deferred_array = true;
5305 12432 : gfc_trans_deferred_array (sym, block);
5306 12432 : if (sym->ts.type == BT_CHARACTER && sym->ts.deferred
5307 748 : && sym->attr.result)
5308 : {
5309 32 : gfc_start_block (&init);
5310 32 : loc = input_location;
5311 32 : input_location = gfc_get_location (&sym->declared_at);
5312 32 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5313 32 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5314 : }
5315 : break;
5316 :
5317 0 : default:
5318 0 : gcc_unreachable ();
5319 : }
5320 57908 : if (alloc_comp_or_fini && !seen_trans_deferred_array)
5321 300 : gfc_trans_deferred_array (sym, block);
5322 : }
5323 11841 : else if ((!sym->attr.dummy || sym->ts.deferred)
5324 11645 : && (sym->ts.type == BT_CLASS
5325 2938 : && CLASS_DATA (sym)->attr.class_pointer))
5326 529 : gfc_trans_class_array (sym, block);
5327 11312 : else if ((!sym->attr.dummy || sym->ts.deferred)
5328 11116 : && (sym->attr.allocatable
5329 8739 : || (sym->attr.pointer && sym->attr.result)
5330 8688 : || (sym->ts.type == BT_CLASS
5331 2409 : && CLASS_DATA (sym)->attr.allocatable)))
5332 : {
5333 : /* Ensure that the initialization block may be generated also for
5334 : dummy and result variables when -fno-automatic is specified, which
5335 : sets flag_max_stack_var_size=0. */
5336 4837 : if (!sym->attr.save
5337 4758 : && (flag_max_stack_var_size != 0
5338 3 : || sym->attr.dummy
5339 3 : || sym->attr.result))
5340 : {
5341 4758 : tree descriptor = NULL_TREE;
5342 :
5343 4758 : loc = input_location;
5344 4758 : input_location = gfc_get_location (&sym->declared_at);
5345 4758 : gfc_start_block (&init);
5346 :
5347 4758 : if (sym->ts.type == BT_CHARACTER
5348 1011 : && sym->attr.allocatable
5349 987 : && !sym->attr.dimension
5350 987 : && sym->ts.u.cl && sym->ts.u.cl->length
5351 191 : && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE)
5352 27 : gfc_conv_string_length (sym->ts.u.cl, NULL, &init);
5353 :
5354 4758 : if (!sym->attr.pointer)
5355 : {
5356 : /* Nullify and automatic deallocation of allocatable
5357 : scalars. */
5358 4707 : e = gfc_lval_expr_from_sym (sym);
5359 4707 : if (sym->ts.type == BT_CLASS)
5360 2409 : gfc_add_data_component (e);
5361 :
5362 4707 : gfc_init_se (&se, NULL);
5363 4707 : if (sym->ts.type != BT_CLASS
5364 2409 : || sym->ts.u.derived->attr.dimension
5365 2409 : || sym->ts.u.derived->attr.codimension)
5366 : {
5367 2298 : se.want_pointer = 1;
5368 2298 : gfc_conv_expr (&se, e);
5369 : }
5370 2409 : else if (sym->ts.type == BT_CLASS
5371 2409 : && !CLASS_DATA (sym)->attr.dimension
5372 1322 : && !CLASS_DATA (sym)->attr.codimension)
5373 : {
5374 1264 : se.want_pointer = 1;
5375 1264 : gfc_conv_expr (&se, e);
5376 : }
5377 : else
5378 : {
5379 1145 : se.descriptor_only = 1;
5380 1145 : gfc_conv_expr (&se, e);
5381 1145 : descriptor = se.expr;
5382 1145 : se.expr = gfc_conv_descriptor_data_get (se.expr);
5383 : }
5384 4707 : gfc_free_expr (e);
5385 :
5386 4707 : if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT)
5387 : {
5388 : /* Nullify when entering the scope. */
5389 4707 : if (sym->ts.type == BT_CLASS
5390 2409 : && (CLASS_DATA (sym)->attr.dimension
5391 1322 : || CLASS_DATA (sym)->attr.codimension))
5392 : {
5393 1145 : stmtblock_t nullify;
5394 1145 : gfc_init_block (&nullify);
5395 1145 : gfc_conv_descriptor_data_set (&nullify, descriptor,
5396 : null_pointer_node);
5397 1145 : tmp = gfc_finish_block (&nullify);
5398 1145 : }
5399 : else
5400 : {
5401 3562 : tree typed_null = fold_convert (TREE_TYPE (se.expr),
5402 : null_pointer_node);
5403 3562 : tmp = fold_build2_loc (input_location, MODIFY_EXPR,
5404 3562 : TREE_TYPE (se.expr), se.expr,
5405 : typed_null);
5406 : }
5407 4707 : if (sym->attr.optional)
5408 : {
5409 0 : tree present = gfc_conv_expr_present (sym);
5410 0 : tmp = build3_loc (input_location, COND_EXPR,
5411 : void_type_node, present, tmp,
5412 : build_empty_stmt (input_location));
5413 : }
5414 4707 : gfc_add_expr_to_block (&init, tmp);
5415 : }
5416 : }
5417 :
5418 4758 : if ((sym->attr.dummy || sym->attr.result)
5419 511 : && sym->ts.type == BT_CHARACTER
5420 124 : && sym->ts.deferred
5421 124 : && sym->ts.u.cl->passed_length)
5422 124 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5423 : else
5424 : {
5425 4634 : input_location = loc;
5426 4634 : tmp = NULL_TREE;
5427 : }
5428 :
5429 : /* Initialize descriptor's TKR information. */
5430 4758 : if (sym->ts.type == BT_CLASS)
5431 2409 : gfc_trans_class_array (sym, block);
5432 :
5433 : /* Deallocate when leaving the scope. Nullifying is not
5434 : needed. */
5435 4758 : if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer
5436 4247 : && !sym->ns->proc_name->attr.is_main_program)
5437 : {
5438 1429 : if (sym->ts.type == BT_CLASS
5439 496 : && CLASS_DATA (sym)->attr.codimension)
5440 6 : tmp = gfc_deallocate_with_status (descriptor, NULL_TREE,
5441 : NULL_TREE, NULL_TREE,
5442 : NULL_TREE, true, NULL,
5443 : GFC_CAF_COARRAY_ANALYZE);
5444 : else
5445 : {
5446 1423 : gfc_expr *expr = gfc_lval_expr_from_sym (sym);
5447 1423 : tmp = gfc_deallocate_scalar_with_status (se.expr,
5448 : NULL_TREE,
5449 : NULL_TREE,
5450 : true, expr,
5451 : sym->ts);
5452 1423 : gfc_free_expr (expr);
5453 : }
5454 : }
5455 :
5456 4758 : if (sym->ts.type == BT_CLASS)
5457 : {
5458 : /* Initialize _vptr to declared type. */
5459 2409 : loc = input_location;
5460 2409 : input_location = gfc_get_location (&sym->declared_at);
5461 :
5462 2409 : e = gfc_lval_expr_from_sym (sym);
5463 2409 : gfc_reset_vptr (&init, e);
5464 2409 : gfc_free_expr (e);
5465 2409 : input_location = loc;
5466 : }
5467 :
5468 4758 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5469 : }
5470 : }
5471 6475 : else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred)
5472 : {
5473 274 : tree tmp = NULL;
5474 274 : stmtblock_t init;
5475 :
5476 : /* If we get to here, all that should be left are pointers. */
5477 274 : gcc_assert (sym->attr.pointer);
5478 :
5479 274 : if (sym->attr.dummy)
5480 : {
5481 0 : gfc_start_block (&init);
5482 0 : loc = input_location;
5483 0 : input_location = gfc_get_location (&sym->declared_at);
5484 0 : tmp = gfc_null_and_pass_deferred_len (sym, &init, loc);
5485 0 : gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp);
5486 : }
5487 274 : }
5488 6201 : else if (sym->ts.deferred)
5489 0 : gfc_fatal_error ("Deferred type parameter not yet supported");
5490 6201 : else if (alloc_comp_or_fini)
5491 4836 : gfc_trans_deferred_array (sym, block);
5492 1365 : else if (sym->ts.type == BT_CHARACTER)
5493 : {
5494 696 : loc = input_location;
5495 696 : input_location = gfc_get_location (&sym->declared_at);
5496 696 : if (sym->attr.dummy || sym->attr.result)
5497 342 : gfc_trans_dummy_character (sym, sym->ts.u.cl, block);
5498 : else
5499 354 : gfc_trans_auto_character_variable (sym, block);
5500 696 : input_location = loc;
5501 : }
5502 669 : else if (sym->attr.assign)
5503 : {
5504 64 : loc = input_location;
5505 64 : input_location = gfc_get_location (&sym->declared_at);
5506 64 : gfc_trans_assign_aux_var (sym, block);
5507 64 : input_location = loc;
5508 : }
5509 605 : else if (sym->ts.type == BT_DERIVED
5510 605 : && sym->value
5511 520 : && !sym->attr.data
5512 520 : && sym->attr.save == SAVE_NONE)
5513 : {
5514 487 : gfc_start_block (&tmpblock);
5515 487 : gfc_init_default_dt (sym, &tmpblock, false);
5516 487 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5517 : NULL_TREE);
5518 : }
5519 118 : else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type)
5520 0 : gcc_unreachable ();
5521 : }
5522 :
5523 : /* Handle 'omp allocate'. This has to be after the block above as
5524 : gfc_add_init_cleanup (..., init, ...) puts 'init' of later calls
5525 : before earlier calls. The code is a bit more complex as gfortran does
5526 : not really work with bind expressions / BIND_EXPR_VARS properly, i.e.
5527 : gimplify_bind_expr needs some help for placing the GOMP_alloc. Thus,
5528 : we pass on the location of the allocate-assignment expression and,
5529 : if the size is not constant, the size variable if Fortran computes this
5530 : differently. We also might add an expression location after which the
5531 : code has to be added, e.g. for character len expressions, which affect
5532 : the UNIT_SIZE. */
5533 100272 : gfc_expr *last_allocator = NULL;
5534 100272 : if (omp_ns && omp_ns->omp_allocate)
5535 : {
5536 29 : if (!block->init || TREE_CODE (block->init) != STATEMENT_LIST)
5537 : {
5538 22 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5539 22 : append_to_statement_list (tmp, &block->init);
5540 : }
5541 29 : if (!block->cleanup || TREE_CODE (block->cleanup) != STATEMENT_LIST)
5542 : {
5543 29 : tree tmp = build1_v (LABEL_EXPR, gfc_build_label_decl (NULL_TREE));
5544 29 : append_to_statement_list (tmp, &block->cleanup);
5545 : }
5546 : }
5547 100272 : tree init_stmtlist = block->init;
5548 100272 : tree cleanup_stmtlist = block->cleanup;
5549 100272 : se.expr = NULL_TREE;
5550 100272 : for (struct gfc_omp_namelist *n = omp_ns ? omp_ns->omp_allocate : NULL;
5551 100327 : n; n = n->next)
5552 : {
5553 55 : tree align = (n->u.align ? gfc_conv_constant_to_tree (n->u.align) : NULL_TREE);
5554 55 : if (last_allocator != n->u2.allocator)
5555 : {
5556 24 : location_t loc = input_location;
5557 24 : gfc_init_se (&se, NULL);
5558 24 : if (n->u2.allocator)
5559 : {
5560 22 : input_location = gfc_get_location (&n->u2.allocator->where);
5561 22 : gfc_conv_expr (&se, n->u2.allocator);
5562 : }
5563 : /* We need to evaluate non-constants - also to find the location
5564 : after which the GOMP_alloc has to be added to - also as BLOCK
5565 : does not yield a new BIND_EXPR_BODY. */
5566 24 : if (n->u2.allocator
5567 : && (!(CONSTANT_CLASS_P (se.expr) && DECL_P (se.expr))
5568 : || se.pre.head || se.post.head))
5569 : {
5570 22 : stmtblock_t tmpblock;
5571 22 : gfc_init_block (&tmpblock);
5572 22 : se.expr = gfc_evaluate_now (se.expr, &tmpblock);
5573 : /* First post then pre because the new code is inserted
5574 : at the top. */
5575 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.post), NULL);
5576 22 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock),
5577 : NULL);
5578 22 : gfc_add_init_cleanup (block, gfc_finish_block (&se.pre), NULL);
5579 : }
5580 24 : last_allocator = n->u2.allocator;
5581 24 : input_location = loc;
5582 : }
5583 55 : if (TREE_STATIC (n->sym->backend_decl))
5584 19 : continue;
5585 : /* 'omp allocate( {purpose: allocator, value: align},
5586 : {purpose: init-stmtlist, value: cleanup-stmtlist},
5587 : {purpose: size-var, value: last-size-expr} )
5588 : where init-stmt/cleanup-stmt is the STATEMENT list to find the
5589 : try-final block; last-size-expr is to find the location after
5590 : which to add the code and 'size-var' is for the proper size, cf.
5591 : gfc_trans_auto_array_allocation - either or both of the latter
5592 : can be NULL. */
5593 36 : tree tmp = lookup_attribute ("omp allocate",
5594 36 : DECL_ATTRIBUTES (n->sym->backend_decl));
5595 36 : tmp = TREE_VALUE (tmp);
5596 36 : TREE_PURPOSE (tmp) = se.expr;
5597 36 : TREE_VALUE (tmp) = align;
5598 36 : TREE_PURPOSE (TREE_CHAIN (tmp)) = init_stmtlist;
5599 36 : TREE_VALUE (TREE_CHAIN (tmp)) = cleanup_stmtlist;
5600 : }
5601 :
5602 100272 : gfc_init_block (&tmpblock);
5603 :
5604 202923 : for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next)
5605 : {
5606 102651 : if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER
5607 7823 : && f->sym->ts.u.cl->backend_decl)
5608 : {
5609 7820 : if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL)
5610 4190 : gfc_trans_vla_type_sizes (f->sym, &tmpblock);
5611 : }
5612 : }
5613 :
5614 103167 : if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER
5615 101735 : && current_fake_result_decl != NULL)
5616 : {
5617 839 : gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL);
5618 839 : if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL)
5619 69 : gfc_trans_vla_type_sizes (proc_sym, &tmpblock);
5620 : }
5621 :
5622 100272 : gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE);
5623 100272 : }
5624 :
5625 :
5626 : struct module_hasher : ggc_ptr_hash<module_htab_entry>
5627 : {
5628 : typedef const char *compare_type;
5629 :
5630 27060 : static hashval_t hash (module_htab_entry *s)
5631 : {
5632 27060 : return htab_hash_string (s->name);
5633 : }
5634 :
5635 : static bool
5636 32068 : equal (module_htab_entry *a, const char *b)
5637 : {
5638 32068 : return !strcmp (a->name, b);
5639 : }
5640 : };
5641 :
5642 : static GTY (()) hash_table<module_hasher> *module_htab;
5643 :
5644 : /* Hash and equality functions for module_htab's decls. */
5645 :
5646 : hashval_t
5647 162920 : module_decl_hasher::hash (tree t)
5648 : {
5649 162920 : const_tree n = DECL_NAME (t);
5650 162920 : if (n == NULL_TREE)
5651 23904 : n = TYPE_NAME (TREE_TYPE (t));
5652 162920 : return htab_hash_string (IDENTIFIER_POINTER (n));
5653 : }
5654 :
5655 : bool
5656 171700 : module_decl_hasher::equal (tree t1, const char *x2)
5657 : {
5658 171700 : const_tree n1 = DECL_NAME (t1);
5659 171700 : if (n1 == NULL_TREE)
5660 25008 : n1 = TYPE_NAME (TREE_TYPE (t1));
5661 171700 : return strcmp (IDENTIFIER_POINTER (n1), x2) == 0;
5662 : }
5663 :
5664 : struct module_htab_entry *
5665 30363 : gfc_find_module (const char *name)
5666 : {
5667 30363 : if (! module_htab)
5668 8279 : module_htab = hash_table<module_hasher>::create_ggc (10);
5669 :
5670 30363 : module_htab_entry **slot
5671 30363 : = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT);
5672 30363 : if (*slot == NULL)
5673 : {
5674 10568 : module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> ();
5675 :
5676 10568 : entry->name = gfc_get_string ("%s", name);
5677 10568 : entry->decls = hash_table<module_decl_hasher>::create_ggc (10);
5678 10568 : *slot = entry;
5679 : }
5680 30363 : return *slot;
5681 : }
5682 :
5683 : void
5684 52281 : gfc_module_add_decl (struct module_htab_entry *entry, tree decl)
5685 : {
5686 52281 : const char *name;
5687 :
5688 52281 : if (DECL_NAME (decl))
5689 45354 : name = IDENTIFIER_POINTER (DECL_NAME (decl));
5690 : else
5691 : {
5692 6927 : gcc_assert (TREE_CODE (decl) == TYPE_DECL);
5693 6927 : name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl)));
5694 : }
5695 52281 : tree *slot
5696 52281 : = entry->decls->find_slot_with_hash (name, htab_hash_string (name),
5697 : INSERT);
5698 52281 : if (*slot == NULL)
5699 52269 : *slot = decl;
5700 52281 : }
5701 :
5702 :
5703 : /* Generate debugging symbols for namelists. This function must come after
5704 : generate_local_decl to ensure that the variables in the namelist are
5705 : already declared. */
5706 :
5707 : static tree
5708 771 : generate_namelist_decl (gfc_symbol * sym)
5709 : {
5710 771 : gfc_namelist *nml;
5711 771 : tree decl;
5712 771 : vec<constructor_elt, va_gc> *nml_decls = NULL;
5713 :
5714 771 : gcc_assert (sym->attr.flavor == FL_NAMELIST);
5715 2801 : for (nml = sym->namelist; nml; nml = nml->next)
5716 : {
5717 2030 : if (nml->sym->backend_decl == NULL_TREE)
5718 : {
5719 23 : nml->sym->attr.referenced = 1;
5720 23 : nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym);
5721 : }
5722 2030 : DECL_IGNORED_P (nml->sym->backend_decl) = 0;
5723 2030 : CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl);
5724 : }
5725 :
5726 771 : decl = make_node (NAMELIST_DECL);
5727 771 : TREE_TYPE (decl) = void_type_node;
5728 771 : NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls);
5729 771 : DECL_NAME (decl) = get_identifier (sym->name);
5730 771 : return decl;
5731 : }
5732 :
5733 :
5734 : /* Output an initialized decl for a module variable. */
5735 :
5736 : static void
5737 145107 : gfc_create_module_variable (gfc_symbol * sym)
5738 : {
5739 145107 : tree decl;
5740 :
5741 : /* Module functions with alternate entries are dealt with later and
5742 : would get caught by the next condition. */
5743 145107 : if (sym->attr.entry)
5744 : return;
5745 :
5746 : /* Make sure we convert the types of the derived types from iso_c_binding
5747 : into (void *). */
5748 144626 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
5749 31335 : && sym->ts.type == BT_DERIVED)
5750 1450 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
5751 :
5752 144626 : if (gfc_fl_struct (sym->attr.flavor)
5753 23679 : && sym->backend_decl
5754 6961 : && TREE_CODE (sym->backend_decl) == RECORD_TYPE)
5755 : {
5756 6927 : decl = sym->backend_decl;
5757 6927 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5758 :
5759 6927 : if (!sym->attr.use_assoc && !sym->attr.used_in_submodule)
5760 : {
5761 6830 : gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE
5762 : || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl);
5763 6830 : gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE
5764 : || DECL_CONTEXT (TYPE_STUB_DECL (decl))
5765 : == sym->ns->proc_name->backend_decl);
5766 : }
5767 6927 : TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5768 6927 : DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl;
5769 6927 : gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl));
5770 : }
5771 :
5772 : /* Only output variables, procedure pointers and array valued,
5773 : or derived type, parameters. */
5774 144626 : if (sym->attr.flavor != FL_VARIABLE
5775 121686 : && !(sym->attr.flavor == FL_PARAMETER
5776 39120 : && (sym->attr.dimension || sym->ts.type == BT_DERIVED))
5777 120642 : && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer))
5778 : return;
5779 :
5780 24057 : if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl)
5781 : {
5782 461 : decl = sym->backend_decl;
5783 461 : gcc_assert (DECL_FILE_SCOPE_P (decl));
5784 461 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
5785 461 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5786 461 : gfc_module_add_decl (cur_module, decl);
5787 : }
5788 :
5789 : /* Don't generate variables from other modules. Variables from
5790 : COMMONs and Cray pointees will already have been generated. */
5791 24057 : if (sym->attr.use_assoc || sym->attr.used_in_submodule
5792 18969 : || sym->attr.in_common || sym->attr.cray_pointee)
5793 : return;
5794 :
5795 : /* Equivalenced variables arrive here after creation. */
5796 18650 : if (sym->backend_decl
5797 618 : && (sym->equiv_built || sym->attr.in_equivalence))
5798 : return;
5799 :
5800 18563 : if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target)
5801 0 : gfc_internal_error ("backend decl for module variable %qs already exists",
5802 : sym->name);
5803 :
5804 18563 : if (sym->module && !sym->attr.result && !sym->attr.dummy
5805 18563 : && (sym->attr.access == ACCESS_UNKNOWN
5806 3758 : && (sym->ns->default_access == ACCESS_PRIVATE
5807 3468 : || (sym->ns->default_access == ACCESS_UNKNOWN
5808 3454 : && flag_module_private))))
5809 291 : sym->attr.access = ACCESS_PRIVATE;
5810 :
5811 18563 : if (warn_unused_variable && !sym->attr.referenced
5812 138 : && sym->attr.access == ACCESS_PRIVATE)
5813 3 : gfc_warning (OPT_Wunused_value,
5814 : "Unused PRIVATE module variable %qs declared at %L",
5815 : sym->name, &sym->declared_at);
5816 :
5817 : /* We always want module variables to be created. */
5818 18563 : sym->attr.referenced = 1;
5819 : /* Create the decl. */
5820 18563 : decl = gfc_get_symbol_decl (sym);
5821 :
5822 : /* Create the variable. */
5823 18563 : pushdecl (decl);
5824 18563 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE
5825 : || ((sym->ns->parent->proc_name->attr.flavor == FL_MODULE
5826 : || sym->ns->parent->proc_name->attr.flavor == FL_PROCEDURE)
5827 : && sym->fn_result_spec));
5828 18563 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
5829 18563 : rest_of_decl_compilation (decl, 1, 0);
5830 18563 : gfc_module_add_decl (cur_module, decl);
5831 :
5832 : /* Also add length of strings. */
5833 18563 : if (sym->ts.type == BT_CHARACTER)
5834 : {
5835 400 : tree length;
5836 :
5837 400 : length = sym->ts.u.cl->backend_decl;
5838 400 : gcc_assert (length || sym->attr.proc_pointer);
5839 399 : if (length && !INTEGER_CST_P (length))
5840 : {
5841 54 : pushdecl (length);
5842 54 : rest_of_decl_compilation (length, 1, 0);
5843 : }
5844 : }
5845 :
5846 18563 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
5847 35 : && sym->attr.referenced && !sym->attr.use_assoc)
5848 35 : has_coarray_vars_or_accessors = true;
5849 : }
5850 :
5851 : /* Emit debug information for USE statements. */
5852 :
5853 : static void
5854 95344 : gfc_trans_use_stmts (gfc_namespace * ns)
5855 : {
5856 95344 : gfc_use_list *use_stmt;
5857 107115 : for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next)
5858 : {
5859 11771 : struct module_htab_entry *entry
5860 11771 : = gfc_find_module (use_stmt->module_name);
5861 11771 : gfc_use_rename *rent;
5862 :
5863 11771 : if (entry->namespace_decl == NULL)
5864 : {
5865 1273 : entry->namespace_decl
5866 1273 : = build_decl (input_location,
5867 : NAMESPACE_DECL,
5868 : get_identifier (use_stmt->module_name),
5869 : void_type_node);
5870 1273 : DECL_EXTERNAL (entry->namespace_decl) = 1;
5871 : }
5872 11771 : input_location = gfc_get_location (&use_stmt->where);
5873 11771 : if (!use_stmt->only_flag)
5874 10208 : (*debug_hooks->imported_module_or_decl) (entry->namespace_decl,
5875 : NULL_TREE,
5876 10208 : ns->proc_name->backend_decl,
5877 : false, false);
5878 14403 : for (rent = use_stmt->rename; rent; rent = rent->next)
5879 : {
5880 2632 : tree decl, local_name;
5881 :
5882 2632 : if (rent->op != INTRINSIC_NONE)
5883 105 : continue;
5884 :
5885 2527 : hashval_t hash = htab_hash_string (rent->use_name);
5886 2527 : tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash,
5887 : INSERT);
5888 2527 : if (*slot == NULL)
5889 : {
5890 1421 : gfc_symtree *st;
5891 :
5892 1421 : st = gfc_find_symtree (ns->sym_root,
5893 1421 : rent->local_name[0]
5894 : ? rent->local_name : rent->use_name);
5895 :
5896 : /* The following can happen if a derived type is renamed. */
5897 1421 : if (!st)
5898 : {
5899 0 : char *name;
5900 0 : name = xstrdup (rent->local_name[0]
5901 : ? rent->local_name : rent->use_name);
5902 0 : name[0] = (char) TOUPPER ((unsigned char) name[0]);
5903 0 : st = gfc_find_symtree (ns->sym_root, name);
5904 0 : free (name);
5905 0 : gcc_assert (st);
5906 : }
5907 :
5908 : /* Sometimes, generic interfaces wind up being over-ruled by a
5909 : local symbol (see PR41062). */
5910 1421 : if (!st->n.sym->attr.use_assoc)
5911 : {
5912 2 : *slot = error_mark_node;
5913 2 : entry->decls->clear_slot (slot);
5914 2 : continue;
5915 : }
5916 :
5917 1419 : if (st->n.sym->backend_decl
5918 173 : && DECL_P (st->n.sym->backend_decl)
5919 171 : && st->n.sym->module
5920 171 : && strcmp (st->n.sym->module, use_stmt->module_name) == 0)
5921 : {
5922 162 : gcc_assert (DECL_EXTERNAL (entry->namespace_decl)
5923 : || !VAR_P (st->n.sym->backend_decl));
5924 162 : decl = copy_node (st->n.sym->backend_decl);
5925 162 : DECL_CONTEXT (decl) = entry->namespace_decl;
5926 162 : DECL_EXTERNAL (decl) = 1;
5927 162 : DECL_IGNORED_P (decl) = 0;
5928 162 : DECL_INITIAL (decl) = NULL_TREE;
5929 : }
5930 1257 : else if (st->n.sym->attr.flavor == FL_NAMELIST
5931 0 : && st->n.sym->attr.use_only
5932 0 : && st->n.sym->module
5933 0 : && strcmp (st->n.sym->module, use_stmt->module_name)
5934 : == 0)
5935 : {
5936 0 : decl = generate_namelist_decl (st->n.sym);
5937 0 : DECL_CONTEXT (decl) = entry->namespace_decl;
5938 0 : DECL_EXTERNAL (decl) = 1;
5939 0 : DECL_IGNORED_P (decl) = 0;
5940 0 : DECL_INITIAL (decl) = NULL_TREE;
5941 : }
5942 : else
5943 : {
5944 1257 : *slot = error_mark_node;
5945 1257 : entry->decls->clear_slot (slot);
5946 1257 : continue;
5947 : }
5948 162 : *slot = decl;
5949 : }
5950 1268 : decl = (tree) *slot;
5951 1268 : if (rent->local_name[0])
5952 198 : local_name = get_identifier (rent->local_name);
5953 : else
5954 : local_name = NULL_TREE;
5955 1268 : input_location = gfc_get_location (&rent->where);
5956 1268 : (*debug_hooks->imported_module_or_decl) (decl, local_name,
5957 1268 : ns->proc_name->backend_decl,
5958 1268 : !use_stmt->only_flag,
5959 : false);
5960 : }
5961 : }
5962 95344 : }
5963 :
5964 :
5965 : /* Return true if expr is a constant initializer that gfc_conv_initializer
5966 : will handle. */
5967 :
5968 : static bool
5969 24296 : check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array,
5970 : bool pointer)
5971 : {
5972 24296 : gfc_constructor *c;
5973 24296 : gfc_component *cm;
5974 :
5975 24296 : if (pointer)
5976 : return true;
5977 24292 : else if (array)
5978 : {
5979 2623 : if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL)
5980 : return true;
5981 2584 : else if (expr->expr_type == EXPR_STRUCTURE)
5982 18 : return check_constant_initializer (expr, ts, false, false);
5983 2566 : else if (expr->expr_type != EXPR_ARRAY)
5984 : return false;
5985 2566 : for (c = gfc_constructor_first (expr->value.constructor);
5986 134129 : c; c = gfc_constructor_next (c))
5987 : {
5988 131563 : if (c->iterator)
5989 : return false;
5990 131563 : if (c->expr->expr_type == EXPR_STRUCTURE)
5991 : {
5992 300 : if (!check_constant_initializer (c->expr, ts, false, false))
5993 : return false;
5994 : }
5995 131263 : else if (c->expr->expr_type != EXPR_CONSTANT)
5996 : return false;
5997 : }
5998 : return true;
5999 : }
6000 21669 : else switch (ts->type)
6001 : {
6002 463 : case_bt_struct:
6003 463 : if (expr->expr_type != EXPR_STRUCTURE)
6004 : return false;
6005 463 : cm = expr->ts.u.derived->components;
6006 463 : for (c = gfc_constructor_first (expr->value.constructor);
6007 1049 : c; c = gfc_constructor_next (c), cm = cm->next)
6008 : {
6009 594 : if (!c->expr || cm->attr.allocatable)
6010 14 : continue;
6011 580 : if (!check_constant_initializer (c->expr, &cm->ts,
6012 : cm->attr.dimension,
6013 : cm->attr.pointer))
6014 : return false;
6015 : }
6016 : return true;
6017 21206 : default:
6018 21206 : return expr->expr_type == EXPR_CONSTANT;
6019 : }
6020 : }
6021 :
6022 : /* Emit debug info for parameters and unreferenced variables with
6023 : initializers. */
6024 :
6025 : static void
6026 1225678 : gfc_emit_parameter_debug_info (gfc_symbol *sym)
6027 : {
6028 1225678 : tree decl;
6029 :
6030 1225678 : if (sym->attr.flavor != FL_PARAMETER
6031 973895 : && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced))
6032 : return;
6033 :
6034 289575 : if (sym->backend_decl != NULL
6035 267616 : || sym->value == NULL
6036 239404 : || sym->attr.use_assoc
6037 23458 : || sym->attr.dummy
6038 23458 : || sym->attr.result
6039 23458 : || sym->attr.function
6040 23458 : || sym->attr.intrinsic
6041 23458 : || sym->attr.pointer
6042 23448 : || sym->attr.allocatable
6043 23448 : || sym->attr.cray_pointee
6044 23448 : || sym->attr.threadprivate
6045 23447 : || sym->attr.is_bind_c
6046 23447 : || sym->attr.subref_array_pointer
6047 23447 : || sym->attr.assign)
6048 : return;
6049 :
6050 23447 : if (sym->ts.type == BT_CHARACTER)
6051 : {
6052 1348 : gfc_conv_const_charlen (sym->ts.u.cl);
6053 1348 : if (sym->ts.u.cl->backend_decl == NULL
6054 1348 : || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST)
6055 : return;
6056 : }
6057 22099 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp)
6058 : return;
6059 :
6060 23398 : if (sym->as)
6061 : {
6062 2541 : int n;
6063 :
6064 2541 : if (sym->as->type != AS_EXPLICIT)
6065 : return;
6066 5724 : for (n = 0; n < sym->as->rank; n++)
6067 3183 : if (sym->as->lower[n]->expr_type != EXPR_CONSTANT
6068 3183 : || sym->as->upper[n] == NULL
6069 3183 : || sym->as->upper[n]->expr_type != EXPR_CONSTANT)
6070 : return;
6071 : }
6072 :
6073 23398 : if (!check_constant_initializer (sym->value, &sym->ts,
6074 23398 : sym->attr.dimension, false))
6075 : return;
6076 :
6077 23389 : if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension)
6078 : return;
6079 :
6080 : /* Create the decl for the variable or constant. */
6081 46778 : decl = build_decl (input_location,
6082 23389 : sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL,
6083 : gfc_sym_identifier (sym), gfc_sym_type (sym));
6084 23389 : if (sym->attr.flavor == FL_PARAMETER)
6085 23152 : TREE_READONLY (decl) = 1;
6086 23389 : gfc_set_decl_location (decl, &sym->declared_at);
6087 23389 : if (sym->attr.dimension)
6088 2541 : GFC_DECL_PACKED_ARRAY (decl) = 1;
6089 23389 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6090 23389 : TREE_STATIC (decl) = 1;
6091 23389 : TREE_USED (decl) = 1;
6092 23389 : if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL)
6093 2534 : TREE_PUBLIC (decl) = 1;
6094 23389 : DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts,
6095 23389 : TREE_TYPE (decl),
6096 23389 : sym->attr.dimension,
6097 : false, false);
6098 23389 : debug_hooks->early_global_decl (decl);
6099 : }
6100 :
6101 :
6102 : static void
6103 6742 : generate_coarray_sym_init (gfc_symbol *sym)
6104 : {
6105 6742 : tree tmp, size, decl, token, desc;
6106 6742 : bool is_lock_type, is_event_type;
6107 6742 : int reg_type;
6108 6742 : gfc_se se;
6109 6742 : symbol_attribute attr;
6110 :
6111 6742 : if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension
6112 402 : || sym->attr.use_assoc || !sym->attr.referenced
6113 398 : || sym->attr.associate_var
6114 347 : || sym->attr.select_type_temporary)
6115 6395 : return;
6116 :
6117 347 : decl = sym->backend_decl;
6118 347 : TREE_USED(decl) = 1;
6119 347 : gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl)));
6120 :
6121 694 : is_lock_type = sym->ts.type == BT_DERIVED
6122 154 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6123 381 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE;
6124 :
6125 694 : is_event_type = sym->ts.type == BT_DERIVED
6126 154 : && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV
6127 381 : && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE;
6128 :
6129 : /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108
6130 : to make sure the variable is not optimized away. */
6131 347 : DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1;
6132 :
6133 : /* For lock types, we pass the array size as only the library knows the
6134 : size of the variable. */
6135 347 : if (is_lock_type || is_event_type)
6136 34 : size = gfc_index_one_node;
6137 : else
6138 313 : size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl)));
6139 :
6140 : /* Ensure that we do not have size=0 for zero-sized arrays. */
6141 347 : size = fold_build2_loc (input_location, MAX_EXPR, size_type_node,
6142 : fold_convert (size_type_node, size),
6143 : build_int_cst (size_type_node, 1));
6144 :
6145 347 : if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl)))
6146 : {
6147 109 : tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl));
6148 109 : size = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
6149 : fold_convert (size_type_node, tmp), size);
6150 : }
6151 :
6152 347 : gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE);
6153 1041 : token = gfc_build_addr_expr (ppvoid_type_node,
6154 347 : GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl)));
6155 347 : if (is_lock_type)
6156 29 : reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC;
6157 318 : else if (is_event_type)
6158 : reg_type = GFC_CAF_EVENT_STATIC;
6159 : else
6160 313 : reg_type = GFC_CAF_COARRAY_STATIC;
6161 :
6162 : /* Compile the symbol attribute. */
6163 347 : if (sym->ts.type == BT_CLASS)
6164 : {
6165 0 : attr = CLASS_DATA (sym)->attr;
6166 : /* The pointer attribute is always set on classes, overwrite it with the
6167 : class_pointer attribute, which denotes the pointer for classes. */
6168 0 : attr.pointer = attr.class_pointer;
6169 : }
6170 : else
6171 347 : attr = sym->attr;
6172 347 : gfc_init_se (&se, NULL);
6173 347 : desc = gfc_conv_scalar_to_descriptor (&se, decl, attr);
6174 347 : gfc_add_block_to_block (&caf_init_block, &se.pre);
6175 :
6176 347 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size,
6177 347 : build_int_cst (integer_type_node, reg_type),
6178 : token, gfc_build_addr_expr (pvoid_type_node, desc),
6179 : null_pointer_node, /* stat. */
6180 : null_pointer_node, /* errgmsg. */
6181 : build_zero_cst (size_type_node)); /* errmsg_len. */
6182 347 : gfc_add_expr_to_block (&caf_init_block, tmp);
6183 347 : gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl),
6184 : gfc_conv_descriptor_data_get (desc)));
6185 :
6186 : /* Handle "static" initializer. */
6187 347 : if (sym->value)
6188 : {
6189 110 : if (sym->value->expr_type == EXPR_ARRAY)
6190 : {
6191 12 : gfc_constructor *c, *cnext;
6192 :
6193 : /* Test if the array has more than one element. */
6194 12 : c = gfc_constructor_first (sym->value->value.constructor);
6195 12 : gcc_assert (c); /* Empty constructor should not happen here. */
6196 12 : cnext = gfc_constructor_next (c);
6197 :
6198 12 : if (cnext)
6199 : {
6200 : /* An EXPR_ARRAY with a rank > 1 here has to come from a
6201 : DATA statement. Set its rank here as not to confuse
6202 : the following steps. */
6203 11 : sym->value->rank = 1;
6204 : }
6205 : else
6206 : {
6207 : /* There is only a single value in the constructor, use
6208 : it directly for the assignment. */
6209 1 : gfc_expr *new_expr;
6210 1 : new_expr = gfc_copy_expr (c->expr);
6211 1 : gfc_free_expr (sym->value);
6212 1 : sym->value = new_expr;
6213 : }
6214 : }
6215 :
6216 110 : sym->attr.pointer = 1;
6217 110 : tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value,
6218 : true, false);
6219 110 : sym->attr.pointer = 0;
6220 110 : gfc_add_expr_to_block (&caf_init_block, tmp);
6221 : }
6222 237 : else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp)
6223 : {
6224 32 : tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as
6225 : ? sym->as->rank : 0,
6226 : GFC_STRUCTURE_CAF_MODE_IN_COARRAY);
6227 32 : gfc_add_expr_to_block (&caf_init_block, tmp);
6228 : }
6229 : }
6230 :
6231 : struct caf_accessor
6232 : {
6233 : struct caf_accessor *next;
6234 : gfc_expr *hash, *fdecl;
6235 : };
6236 :
6237 : static struct caf_accessor *caf_accessor_head = NULL;
6238 :
6239 : void
6240 1494 : gfc_add_caf_accessor (gfc_expr *h, gfc_expr *f)
6241 : {
6242 1494 : struct caf_accessor *n = XCNEW (struct caf_accessor);
6243 1494 : n->next = caf_accessor_head;
6244 1494 : n->hash = h;
6245 1494 : n->fdecl = f;
6246 1494 : caf_accessor_head = n;
6247 1494 : }
6248 :
6249 : void
6250 464 : create_caf_accessor_register (stmtblock_t *block)
6251 : {
6252 464 : gfc_se se;
6253 464 : tree hash, fdecl;
6254 464 : gfc_init_se (&se, NULL);
6255 1898 : for (struct caf_accessor *curr = caf_accessor_head; curr;)
6256 : {
6257 1434 : gfc_conv_expr (&se, curr->hash);
6258 1434 : hash = se.expr;
6259 1434 : gfc_conv_expr (&se, curr->fdecl);
6260 1434 : fdecl = se.expr;
6261 1434 : TREE_USED (fdecl) = 1;
6262 1434 : TREE_STATIC (fdecl) = 1;
6263 1434 : gcc_assert (FUNCTION_POINTER_TYPE_P (TREE_TYPE (fdecl)));
6264 1434 : gfc_add_expr_to_block (
6265 : block, build_call_expr (gfor_fndecl_caf_register_accessor, 2, hash,
6266 : /*gfc_build_addr_expr (NULL_TREE,*/ fdecl));
6267 1434 : curr = curr->next;
6268 1434 : free (caf_accessor_head);
6269 1434 : caf_accessor_head = curr;
6270 : }
6271 464 : gfc_add_expr_to_block (
6272 : block, build_call_expr (gfor_fndecl_caf_register_accessors_finish, 0));
6273 464 : }
6274 :
6275 : /* Generate constructor function to initialize static, nonallocatable
6276 : coarrays. */
6277 :
6278 : static void
6279 464 : generate_coarray_init (gfc_namespace *ns)
6280 : {
6281 464 : tree fndecl, tmp, decl, save_fn_decl;
6282 :
6283 464 : save_fn_decl = current_function_decl;
6284 464 : push_function_context ();
6285 :
6286 464 : tmp = build_function_type_list (void_type_node, NULL_TREE);
6287 464 : fndecl = build_decl (input_location, FUNCTION_DECL,
6288 : create_tmp_var_name ("_caf_init"), tmp);
6289 :
6290 464 : DECL_STATIC_CONSTRUCTOR (fndecl) = 1;
6291 464 : SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY);
6292 :
6293 464 : decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node);
6294 464 : DECL_ARTIFICIAL (decl) = 1;
6295 464 : DECL_IGNORED_P (decl) = 1;
6296 464 : DECL_CONTEXT (decl) = fndecl;
6297 464 : DECL_RESULT (fndecl) = decl;
6298 :
6299 464 : pushdecl (fndecl);
6300 464 : current_function_decl = fndecl;
6301 464 : announce_function (fndecl);
6302 :
6303 464 : rest_of_decl_compilation (fndecl, 0, 0);
6304 464 : make_decl_rtl (fndecl);
6305 464 : allocate_struct_function (fndecl, false);
6306 :
6307 464 : pushlevel ();
6308 464 : gfc_init_block (&caf_init_block);
6309 :
6310 464 : create_caf_accessor_register (&caf_init_block);
6311 :
6312 464 : gfc_traverse_ns (ns, generate_coarray_sym_init);
6313 :
6314 464 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block);
6315 464 : decl = getdecls ();
6316 :
6317 464 : poplevel (1, 1);
6318 464 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
6319 :
6320 928 : DECL_SAVED_TREE (fndecl)
6321 928 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
6322 928 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
6323 464 : dump_function (TDI_original, fndecl);
6324 :
6325 464 : cfun->function_end_locus = input_location;
6326 464 : set_cfun (NULL);
6327 :
6328 464 : if (decl_function_context (fndecl))
6329 444 : (void) cgraph_node::create (fndecl);
6330 : else
6331 20 : cgraph_node::finalize_function (fndecl, true);
6332 :
6333 464 : pop_function_context ();
6334 464 : current_function_decl = save_fn_decl;
6335 464 : }
6336 :
6337 :
6338 : static void
6339 145107 : create_module_nml_decl (gfc_symbol *sym)
6340 : {
6341 145107 : if (sym->attr.flavor == FL_NAMELIST)
6342 : {
6343 45 : tree decl = generate_namelist_decl (sym);
6344 45 : pushdecl (decl);
6345 45 : gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE);
6346 45 : DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl;
6347 45 : rest_of_decl_compilation (decl, 1, 0);
6348 45 : gfc_module_add_decl (cur_module, decl);
6349 : }
6350 145107 : }
6351 :
6352 : static void
6353 276668 : gfc_handle_omp_declare_variant (gfc_symbol * sym)
6354 : {
6355 276668 : if (sym->attr.external
6356 91490 : && sym->formal_ns
6357 87522 : && sym->formal_ns->omp_declare_variant)
6358 : {
6359 26 : gfc_namespace *ns = gfc_current_ns;
6360 26 : gfc_current_ns = sym->ns;
6361 26 : gfc_get_symbol_decl (sym);
6362 26 : gfc_current_ns = ns;
6363 : }
6364 276668 : }
6365 :
6366 : /* Generate all the required code for module variables. */
6367 :
6368 : void
6369 9295 : gfc_generate_module_vars (gfc_namespace * ns)
6370 : {
6371 9295 : module_namespace = ns;
6372 9295 : cur_module = gfc_find_module (ns->proc_name->name);
6373 :
6374 : /* Check if the frontend left the namespace in a reasonable state. */
6375 9295 : gcc_assert (ns->proc_name && !ns->proc_name->tlink);
6376 :
6377 : /* Generate COMMON blocks. */
6378 9295 : gfc_trans_common (ns);
6379 :
6380 9295 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
6381 :
6382 : /* Create decls for all the module variables. */
6383 9295 : gfc_traverse_ns (ns, gfc_create_module_variable);
6384 9295 : gfc_traverse_ns (ns, create_module_nml_decl);
6385 :
6386 9295 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
6387 20 : generate_coarray_init (ns);
6388 :
6389 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
6390 : especially as some late diagnostic is only done on tree level. */
6391 9295 : if (flag_openmp)
6392 1075 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
6393 :
6394 9295 : cur_module = NULL;
6395 :
6396 9295 : gfc_trans_use_stmts (ns);
6397 9295 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
6398 9295 : }
6399 :
6400 :
6401 : static void
6402 86049 : gfc_generate_contained_functions (gfc_namespace * parent)
6403 : {
6404 86049 : gfc_namespace *ns;
6405 :
6406 : /* We create all the prototypes before generating any code. */
6407 109289 : for (ns = parent->contained; ns; ns = ns->sibling)
6408 : {
6409 : /* Skip namespaces from used modules. */
6410 23240 : if (ns->parent != parent)
6411 0 : continue;
6412 :
6413 23240 : gfc_create_function_decl (ns, false);
6414 : }
6415 :
6416 109289 : for (ns = parent->contained; ns; ns = ns->sibling)
6417 : {
6418 : /* Skip namespaces from used modules. */
6419 23240 : if (ns->parent != parent)
6420 0 : continue;
6421 :
6422 23240 : gfc_generate_function_code (ns);
6423 : }
6424 86049 : }
6425 :
6426 :
6427 : /* Drill down through expressions for the array specification bounds and
6428 : character length calling generate_local_decl for all those variables
6429 : that have not already been declared. */
6430 :
6431 : static void
6432 : generate_local_decl (gfc_symbol *);
6433 :
6434 : /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */
6435 :
6436 : static bool
6437 115128 : expr_decls (gfc_expr *e, gfc_symbol *sym,
6438 : int *f ATTRIBUTE_UNUSED)
6439 : {
6440 115128 : if (e->expr_type != EXPR_VARIABLE
6441 8189 : || sym == e->symtree->n.sym
6442 8176 : || e->symtree->n.sym->mark
6443 738 : || e->symtree->n.sym->ns != sym->ns)
6444 : return false;
6445 :
6446 738 : generate_local_decl (e->symtree->n.sym);
6447 738 : return false;
6448 : }
6449 :
6450 : static void
6451 152614 : generate_expr_decls (gfc_symbol *sym, gfc_expr *e)
6452 : {
6453 0 : gfc_traverse_expr (e, sym, expr_decls, 0);
6454 1058 : }
6455 :
6456 :
6457 : /* Check for dependencies in the character length and array spec. */
6458 :
6459 : static void
6460 196125 : generate_dependency_declarations (gfc_symbol *sym)
6461 : {
6462 196125 : int i;
6463 :
6464 196125 : if (sym->ts.type == BT_CHARACTER
6465 17576 : && sym->ts.u.cl
6466 17576 : && sym->ts.u.cl->length
6467 14411 : && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT)
6468 1058 : generate_expr_decls (sym, sym->ts.u.cl->length);
6469 :
6470 196125 : if (sym->as && sym->as->rank)
6471 : {
6472 128379 : for (i = 0; i < sym->as->rank; i++)
6473 : {
6474 75778 : generate_expr_decls (sym, sym->as->lower[i]);
6475 75778 : generate_expr_decls (sym, sym->as->upper[i]);
6476 : }
6477 : }
6478 196125 : }
6479 :
6480 :
6481 : /* Generate decls for all local variables. We do this to ensure correct
6482 : handling of expressions which only appear in the specification of
6483 : other functions. */
6484 :
6485 : static void
6486 1107033 : generate_local_decl (gfc_symbol * sym)
6487 : {
6488 1107033 : if (sym->attr.flavor == FL_VARIABLE)
6489 : {
6490 291927 : if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable
6491 572 : && sym->attr.referenced && !sym->attr.use_assoc)
6492 533 : has_coarray_vars_or_accessors = true;
6493 :
6494 291927 : if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master)
6495 196125 : generate_dependency_declarations (sym);
6496 :
6497 291927 : if (sym->attr.ext_attr & (1 << EXT_ATTR_WEAK))
6498 : {
6499 2 : if (sym->attr.dummy)
6500 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6501 : "dummy argument", sym->name, &sym->declared_at);
6502 : else
6503 1 : gfc_error ("Symbol %qs at %L has the WEAK attribute but is a "
6504 : "local variable", sym->name, &sym->declared_at);
6505 : }
6506 :
6507 291927 : if (sym->attr.referenced)
6508 258725 : gfc_get_symbol_decl (sym);
6509 :
6510 : /* Warnings for unused dummy arguments. */
6511 33202 : else if (sym->attr.dummy && !sym->attr.in_namelist)
6512 : {
6513 : /* INTENT(out) dummy arguments are likely meant to be set. */
6514 6544 : if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT)
6515 : {
6516 9 : if (sym->ts.type != BT_DERIVED)
6517 6 : gfc_warning (OPT_Wunused_dummy_argument,
6518 : "Dummy argument %qs at %L was declared "
6519 : "INTENT(OUT) but was not set", sym->name,
6520 : &sym->declared_at);
6521 3 : else if (!gfc_has_default_initializer (sym->ts.u.derived)
6522 3 : && !sym->ts.u.derived->attr.zero_comp)
6523 1 : gfc_warning (OPT_Wunused_dummy_argument,
6524 : "Derived-type dummy argument %qs at %L was "
6525 : "declared INTENT(OUT) but was not set and "
6526 : "does not have a default initializer",
6527 : sym->name, &sym->declared_at);
6528 9 : if (sym->backend_decl != NULL_TREE)
6529 9 : suppress_warning (sym->backend_decl);
6530 : }
6531 6535 : else if (warn_unused_dummy_argument)
6532 : {
6533 10 : if (!sym->attr.artificial)
6534 4 : gfc_warning (OPT_Wunused_dummy_argument,
6535 : "Unused dummy argument %qs at %L", sym->name,
6536 : &sym->declared_at);
6537 :
6538 10 : if (sym->backend_decl != NULL_TREE)
6539 4 : suppress_warning (sym->backend_decl);
6540 : }
6541 : }
6542 :
6543 : /* Warn for unused variables, but not if they're inside a common
6544 : block or a namelist. */
6545 26658 : else if (warn_unused_variable
6546 43 : && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist))
6547 : {
6548 43 : if (sym->attr.use_only)
6549 : {
6550 1 : gfc_warning (OPT_Wunused_variable,
6551 : "Unused module variable %qs which has been "
6552 : "explicitly imported at %L", sym->name,
6553 : &sym->declared_at);
6554 1 : if (sym->backend_decl != NULL_TREE)
6555 0 : suppress_warning (sym->backend_decl);
6556 : }
6557 42 : else if (!sym->attr.use_assoc)
6558 : {
6559 : /* Corner case: the symbol may be an entry point. At this point,
6560 : it may appear to be an unused variable. Suppress warning. */
6561 8 : bool enter = false;
6562 8 : gfc_entry_list *el;
6563 :
6564 14 : for (el = sym->ns->entries; el; el=el->next)
6565 6 : if (strcmp(sym->name, el->sym->name) == 0)
6566 2 : enter = true;
6567 :
6568 8 : if (!enter)
6569 6 : gfc_warning (OPT_Wunused_variable,
6570 : "Unused variable %qs declared at %L",
6571 : sym->name, &sym->declared_at);
6572 8 : if (sym->backend_decl != NULL_TREE)
6573 0 : suppress_warning (sym->backend_decl);
6574 : }
6575 : }
6576 :
6577 : /* For variable length CHARACTER parameters, the PARM_DECL already
6578 : references the length variable, so force gfc_get_symbol_decl
6579 : even when not referenced. If optimize > 0, it will be optimized
6580 : away anyway. But do this only after emitting -Wunused-parameter
6581 : warning if requested. */
6582 291927 : if (sym->attr.dummy && !sym->attr.referenced
6583 6544 : && sym->ts.type == BT_CHARACTER
6584 814 : && sym->ts.u.cl->backend_decl != NULL
6585 811 : && VAR_P (sym->ts.u.cl->backend_decl))
6586 : {
6587 6 : sym->attr.referenced = 1;
6588 6 : gfc_get_symbol_decl (sym);
6589 : }
6590 :
6591 : /* INTENT(out) dummy arguments and result variables with allocatable
6592 : components are reset by default and need to be set referenced to
6593 : generate the code for nullification and automatic lengths. */
6594 291927 : if (!sym->attr.referenced
6595 33196 : && sym->ts.type == BT_DERIVED
6596 19529 : && sym->ts.u.derived->attr.alloc_comp
6597 1655 : && !sym->attr.pointer
6598 1654 : && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT)
6599 1618 : ||
6600 1618 : (sym->attr.result && sym != sym->result)))
6601 : {
6602 36 : sym->attr.referenced = 1;
6603 36 : gfc_get_symbol_decl (sym);
6604 : }
6605 :
6606 : /* Check for dependencies in the array specification and string
6607 : length, adding the necessary declarations to the function. We
6608 : mark the symbol now, as well as in traverse_ns, to prevent
6609 : getting stuck in a circular dependency. */
6610 291927 : sym->mark = 1;
6611 : }
6612 815106 : else if (sym->attr.flavor == FL_PARAMETER)
6613 : {
6614 212787 : if (warn_unused_parameter
6615 524 : && !sym->attr.referenced)
6616 : {
6617 467 : if (!sym->attr.use_assoc)
6618 4 : gfc_warning (OPT_Wunused_parameter,
6619 : "Unused parameter %qs declared at %L", sym->name,
6620 : &sym->declared_at);
6621 463 : else if (sym->attr.use_only)
6622 1 : gfc_warning (OPT_Wunused_parameter,
6623 : "Unused parameter %qs which has been explicitly "
6624 : "imported at %L", sym->name, &sym->declared_at);
6625 : }
6626 :
6627 212787 : if (sym->ns && sym->ns->construct_entities)
6628 : {
6629 : /* Construction of the intrinsic modules within a BLOCK
6630 : construct, where ONLY and RENAMED entities are included,
6631 : seems to be bogus. This is a workaround that can be removed
6632 : if someone ever takes on the task to creating full-fledge
6633 : modules. See PR 69455. */
6634 122 : if (sym->attr.referenced
6635 79 : && sym->from_intmod != INTMOD_ISO_C_BINDING
6636 54 : && sym->from_intmod != INTMOD_ISO_FORTRAN_ENV)
6637 26 : gfc_get_symbol_decl (sym);
6638 122 : sym->mark = 1;
6639 : }
6640 : }
6641 602319 : else if (sym->attr.flavor == FL_PROCEDURE)
6642 : {
6643 : /* TODO: move to the appropriate place in resolve.cc. */
6644 501679 : if (warn_return_type > 0
6645 4988 : && sym->attr.function
6646 3699 : && sym->result
6647 3491 : && sym != sym->result
6648 444 : && !sym->result->attr.referenced
6649 36 : && !sym->attr.use_assoc
6650 23 : && sym->attr.if_source != IFSRC_IFBODY)
6651 : {
6652 23 : gfc_warning (OPT_Wreturn_type,
6653 : "Return value %qs of function %qs declared at "
6654 : "%L not set", sym->result->name, sym->name,
6655 : &sym->result->declared_at);
6656 :
6657 : /* Prevents "Unused variable" warning for RESULT variables. */
6658 23 : sym->result->mark = 1;
6659 : }
6660 : }
6661 :
6662 1107033 : if (sym->attr.dummy == 1)
6663 : {
6664 : /* The tree type for scalar character dummy arguments of BIND(C)
6665 : procedures, if they are passed by value, should be unsigned char.
6666 : The value attribute implies the dummy is a scalar. */
6667 102610 : if (sym->attr.value == 1 && sym->backend_decl != NULL
6668 8639 : && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop
6669 254 : && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c)
6670 : {
6671 : /* We used to modify the tree here. Now it is done earlier in
6672 : the front-end, so we only check it here to avoid regressions. */
6673 242 : gcc_assert (TREE_CODE (TREE_TYPE (sym->backend_decl)) == INTEGER_TYPE);
6674 242 : gcc_assert (TYPE_UNSIGNED (TREE_TYPE (sym->backend_decl)) == 1);
6675 242 : gcc_assert (TYPE_PRECISION (TREE_TYPE (sym->backend_decl)) == CHAR_TYPE_SIZE);
6676 242 : gcc_assert (DECL_BY_REFERENCE (sym->backend_decl) == 0);
6677 : }
6678 :
6679 : /* Unused procedure passed as dummy argument. */
6680 102610 : if (sym->attr.flavor == FL_PROCEDURE)
6681 : {
6682 936 : if (!sym->attr.referenced && !sym->attr.artificial)
6683 : {
6684 58 : if (warn_unused_dummy_argument)
6685 2 : gfc_warning (OPT_Wunused_dummy_argument,
6686 : "Unused dummy argument %qs at %L", sym->name,
6687 : &sym->declared_at);
6688 : }
6689 :
6690 : /* Silence bogus "unused parameter" warnings from the
6691 : middle end. */
6692 936 : if (sym->backend_decl != NULL_TREE)
6693 936 : suppress_warning (sym->backend_decl);
6694 : }
6695 : }
6696 :
6697 : /* Make sure we convert the types of the derived types from iso_c_binding
6698 : into (void *). */
6699 1107033 : if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c
6700 81830 : && sym->ts.type == BT_DERIVED)
6701 3421 : sym->backend_decl = gfc_typenode_for_spec (&(sym->ts));
6702 1107033 : }
6703 :
6704 :
6705 : static void
6706 1107040 : generate_local_nml_decl (gfc_symbol * sym)
6707 : {
6708 1107040 : if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc)
6709 : {
6710 726 : tree decl = generate_namelist_decl (sym);
6711 726 : pushdecl (decl);
6712 : }
6713 1107040 : }
6714 :
6715 :
6716 : static void
6717 100272 : generate_local_vars (gfc_namespace * ns)
6718 : {
6719 100272 : gfc_traverse_ns (ns, generate_local_decl);
6720 100272 : gfc_traverse_ns (ns, generate_local_nml_decl);
6721 100272 : }
6722 :
6723 :
6724 : /* Generate a switch statement to jump to the correct entry point. Also
6725 : creates the label decls for the entry points. */
6726 :
6727 : static tree
6728 667 : gfc_trans_entry_master_switch (gfc_entry_list * el)
6729 : {
6730 667 : stmtblock_t block;
6731 667 : tree label;
6732 667 : tree tmp;
6733 667 : tree val;
6734 :
6735 667 : gfc_init_block (&block);
6736 2746 : for (; el; el = el->next)
6737 : {
6738 : /* Add the case label. */
6739 1412 : label = gfc_build_label_decl (NULL_TREE);
6740 1412 : val = build_int_cst (gfc_array_index_type, el->id);
6741 1412 : tmp = build_case_label (val, NULL_TREE, label);
6742 1412 : gfc_add_expr_to_block (&block, tmp);
6743 :
6744 : /* And jump to the actual entry point. */
6745 1412 : label = gfc_build_label_decl (NULL_TREE);
6746 1412 : tmp = build1_v (GOTO_EXPR, label);
6747 1412 : gfc_add_expr_to_block (&block, tmp);
6748 :
6749 : /* Save the label decl. */
6750 1412 : el->label = label;
6751 : }
6752 667 : tmp = gfc_finish_block (&block);
6753 : /* The first argument selects the entry point. */
6754 667 : val = DECL_ARGUMENTS (current_function_decl);
6755 667 : tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp);
6756 667 : return tmp;
6757 : }
6758 :
6759 :
6760 : /* Add code to string lengths of actual arguments passed to a function against
6761 : the expected lengths of the dummy arguments. */
6762 :
6763 : static void
6764 2907 : add_argument_checking (stmtblock_t *block, gfc_symbol *sym)
6765 : {
6766 2907 : gfc_formal_arglist *formal;
6767 :
6768 5761 : for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next)
6769 2854 : if (formal->sym && formal->sym->ts.type == BT_CHARACTER
6770 604 : && !formal->sym->ts.deferred)
6771 : {
6772 554 : enum tree_code comparison;
6773 554 : tree cond;
6774 554 : tree argname;
6775 554 : gfc_symbol *fsym;
6776 554 : gfc_charlen *cl;
6777 554 : const char *message;
6778 :
6779 554 : fsym = formal->sym;
6780 554 : cl = fsym->ts.u.cl;
6781 :
6782 554 : gcc_assert (cl);
6783 554 : gcc_assert (cl->passed_length != NULL_TREE);
6784 554 : gcc_assert (cl->backend_decl != NULL_TREE);
6785 :
6786 : /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the
6787 : string lengths must match exactly. Otherwise, it is only required
6788 : that the actual string length is *at least* the expected one.
6789 : Sequence association allows for a mismatch of the string length
6790 : if the actual argument is (part of) an array, but only if the
6791 : dummy argument is an array. (See "Sequence association" in
6792 : Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */
6793 554 : if (fsym->attr.pointer || fsym->attr.allocatable
6794 446 : || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE
6795 33 : || fsym->as->type == AS_ASSUMED_RANK)))
6796 : {
6797 196 : comparison = NE_EXPR;
6798 196 : message = _("Actual string length does not match the declared one"
6799 : " for dummy argument '%s' (%ld/%ld)");
6800 : }
6801 358 : else if ((fsym->as && fsym->as->rank != 0) || fsym->attr.artificial)
6802 33 : continue;
6803 : else
6804 : {
6805 325 : comparison = LT_EXPR;
6806 325 : message = _("Actual string length is shorter than the declared one"
6807 : " for dummy argument '%s' (%ld/%ld)");
6808 : }
6809 :
6810 : /* Build the condition. For optional arguments, an actual length
6811 : of 0 is also acceptable if the associated string is NULL, which
6812 : means the argument was not passed. */
6813 521 : cond = fold_build2_loc (input_location, comparison, logical_type_node,
6814 : cl->passed_length, cl->backend_decl);
6815 521 : if (fsym->attr.optional)
6816 : {
6817 45 : tree not_absent;
6818 45 : tree not_0length;
6819 45 : tree absent_failed;
6820 :
6821 45 : not_0length = fold_build2_loc (input_location, NE_EXPR,
6822 : logical_type_node,
6823 : cl->passed_length,
6824 : build_zero_cst
6825 45 : (TREE_TYPE (cl->passed_length)));
6826 : /* The symbol needs to be referenced for gfc_get_symbol_decl. */
6827 45 : fsym->attr.referenced = 1;
6828 45 : not_absent = gfc_conv_expr_present (fsym);
6829 :
6830 45 : absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR,
6831 : logical_type_node, not_0length,
6832 : not_absent);
6833 :
6834 45 : cond = fold_build2_loc (input_location, TRUTH_AND_EXPR,
6835 : logical_type_node, cond, absent_failed);
6836 : }
6837 :
6838 : /* Build the runtime check. */
6839 521 : argname = gfc_build_cstring_const (fsym->name);
6840 521 : argname = gfc_build_addr_expr (pchar_type_node, argname);
6841 521 : gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at,
6842 : message, argname,
6843 : fold_convert (long_integer_type_node,
6844 : cl->passed_length),
6845 : fold_convert (long_integer_type_node,
6846 : cl->backend_decl));
6847 : }
6848 2907 : }
6849 :
6850 :
6851 : static void
6852 26465 : create_main_function (tree fndecl)
6853 : {
6854 26465 : tree old_context;
6855 26465 : tree ftn_main;
6856 26465 : tree tmp, decl, result_decl, argc, argv, typelist, arglist;
6857 26465 : stmtblock_t body;
6858 :
6859 26465 : old_context = current_function_decl;
6860 :
6861 26465 : if (old_context)
6862 : {
6863 0 : push_function_context ();
6864 0 : saved_parent_function_decls = saved_function_decls;
6865 0 : saved_function_decls = NULL_TREE;
6866 : }
6867 :
6868 : /* main() function must be declared with global scope. */
6869 26465 : gcc_assert (current_function_decl == NULL_TREE);
6870 :
6871 : /* Declare the function. */
6872 26465 : tmp = build_function_type_list (integer_type_node, integer_type_node,
6873 : build_pointer_type (pchar_type_node),
6874 : NULL_TREE);
6875 26465 : main_identifier_node = get_identifier ("main");
6876 26465 : ftn_main = build_decl (input_location, FUNCTION_DECL,
6877 : main_identifier_node, tmp);
6878 26465 : DECL_EXTERNAL (ftn_main) = 0;
6879 26465 : TREE_PUBLIC (ftn_main) = 1;
6880 26465 : TREE_STATIC (ftn_main) = 1;
6881 26465 : DECL_ATTRIBUTES (ftn_main)
6882 26465 : = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE);
6883 :
6884 : /* Setup the result declaration (for "return 0"). */
6885 26465 : result_decl = build_decl (input_location,
6886 : RESULT_DECL, NULL_TREE, integer_type_node);
6887 26465 : DECL_ARTIFICIAL (result_decl) = 1;
6888 26465 : DECL_IGNORED_P (result_decl) = 1;
6889 26465 : DECL_CONTEXT (result_decl) = ftn_main;
6890 26465 : DECL_RESULT (ftn_main) = result_decl;
6891 :
6892 26465 : pushdecl (ftn_main);
6893 :
6894 : /* Get the arguments. */
6895 :
6896 26465 : arglist = NULL_TREE;
6897 26465 : typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main));
6898 :
6899 26465 : tmp = TREE_VALUE (typelist);
6900 26465 : argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp);
6901 26465 : DECL_CONTEXT (argc) = ftn_main;
6902 26465 : DECL_ARG_TYPE (argc) = TREE_VALUE (typelist);
6903 26465 : TREE_READONLY (argc) = 1;
6904 26465 : gfc_finish_decl (argc);
6905 26465 : arglist = chainon (arglist, argc);
6906 :
6907 26465 : typelist = TREE_CHAIN (typelist);
6908 26465 : tmp = TREE_VALUE (typelist);
6909 26465 : argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp);
6910 26465 : DECL_CONTEXT (argv) = ftn_main;
6911 26465 : DECL_ARG_TYPE (argv) = TREE_VALUE (typelist);
6912 26465 : TREE_READONLY (argv) = 1;
6913 26465 : DECL_BY_REFERENCE (argv) = 1;
6914 26465 : gfc_finish_decl (argv);
6915 26465 : arglist = chainon (arglist, argv);
6916 :
6917 26465 : DECL_ARGUMENTS (ftn_main) = arglist;
6918 26465 : current_function_decl = ftn_main;
6919 26465 : announce_function (ftn_main);
6920 :
6921 26465 : rest_of_decl_compilation (ftn_main, 1, 0);
6922 26465 : make_decl_rtl (ftn_main);
6923 26465 : allocate_struct_function (ftn_main, false);
6924 26465 : pushlevel ();
6925 :
6926 26465 : gfc_init_block (&body);
6927 :
6928 : /* Call some libgfortran initialization routines, call then MAIN__(). */
6929 :
6930 : /* Call _gfortran_caf_init (*argc, ***argv). */
6931 26465 : if (flag_coarray == GFC_FCOARRAY_LIB)
6932 : {
6933 401 : tree pint_type, pppchar_type;
6934 401 : pint_type = build_pointer_type (integer_type_node);
6935 401 : pppchar_type
6936 401 : = build_pointer_type (build_pointer_type (pchar_type_node));
6937 :
6938 401 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2,
6939 : gfc_build_addr_expr (pint_type, argc),
6940 : gfc_build_addr_expr (pppchar_type, argv));
6941 401 : gfc_add_expr_to_block (&body, tmp);
6942 : }
6943 :
6944 : /* Call _gfortran_set_args (argc, argv). */
6945 26465 : TREE_USED (argc) = 1;
6946 26465 : TREE_USED (argv) = 1;
6947 26465 : tmp = build_call_expr_loc (input_location,
6948 : gfor_fndecl_set_args, 2, argc, argv);
6949 26465 : gfc_add_expr_to_block (&body, tmp);
6950 :
6951 : /* Add a call to set_options to set up the runtime library Fortran
6952 : language standard parameters. */
6953 26465 : {
6954 26465 : tree array_type, array, var;
6955 26465 : vec<constructor_elt, va_gc> *v = NULL;
6956 26465 : static const int noptions = 7;
6957 :
6958 : /* Passing a new option to the library requires three modifications:
6959 : + add it to the tree_cons list below
6960 : + change the noptions variable above
6961 : + modify the library (runtime/compile_options.c)! */
6962 :
6963 26465 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6964 : build_int_cst (integer_type_node,
6965 : gfc_option.warn_std));
6966 26465 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6967 : build_int_cst (integer_type_node,
6968 : gfc_option.allow_std));
6969 26465 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6970 : build_int_cst (integer_type_node, pedantic));
6971 26465 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6972 : build_int_cst (integer_type_node, flag_backtrace));
6973 26465 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6974 : build_int_cst (integer_type_node, flag_sign_zero));
6975 26465 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6976 : build_int_cst (integer_type_node,
6977 : (gfc_option.rtcheck
6978 : & GFC_RTCHECK_BOUNDS)));
6979 26465 : CONSTRUCTOR_APPEND_ELT (v, NULL_TREE,
6980 : build_int_cst (integer_type_node,
6981 : gfc_option.fpe_summary));
6982 :
6983 26465 : array_type = build_array_type_nelts (integer_type_node, noptions);
6984 26465 : array = build_constructor (array_type, v);
6985 26465 : TREE_CONSTANT (array) = 1;
6986 26465 : TREE_STATIC (array) = 1;
6987 :
6988 : /* Create a static variable to hold the jump table. */
6989 26465 : var = build_decl (input_location, VAR_DECL,
6990 : create_tmp_var_name ("options"), array_type);
6991 26465 : DECL_ARTIFICIAL (var) = 1;
6992 26465 : DECL_IGNORED_P (var) = 1;
6993 26465 : TREE_CONSTANT (var) = 1;
6994 26465 : TREE_STATIC (var) = 1;
6995 26465 : TREE_READONLY (var) = 1;
6996 26465 : DECL_INITIAL (var) = array;
6997 26465 : pushdecl (var);
6998 26465 : var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var);
6999 :
7000 26465 : tmp = build_call_expr_loc (input_location,
7001 : gfor_fndecl_set_options, 2,
7002 : build_int_cst (integer_type_node, noptions), var);
7003 26465 : gfc_add_expr_to_block (&body, tmp);
7004 : }
7005 :
7006 : /* If -ffpe-trap option was provided, add a call to set_fpe so that
7007 : the library will raise a FPE when needed. */
7008 26465 : if (gfc_option.fpe != 0)
7009 : {
7010 6 : tmp = build_call_expr_loc (input_location,
7011 : gfor_fndecl_set_fpe, 1,
7012 : build_int_cst (integer_type_node,
7013 6 : gfc_option.fpe));
7014 6 : gfc_add_expr_to_block (&body, tmp);
7015 : }
7016 :
7017 : /* If this is the main program and an -fconvert option was provided,
7018 : add a call to set_convert. */
7019 :
7020 26465 : if (flag_convert != GFC_FLAG_CONVERT_NATIVE)
7021 : {
7022 12 : tmp = build_call_expr_loc (input_location,
7023 : gfor_fndecl_set_convert, 1,
7024 12 : build_int_cst (integer_type_node, flag_convert));
7025 12 : gfc_add_expr_to_block (&body, tmp);
7026 : }
7027 :
7028 : /* If this is the main program and an -frecord-marker option was provided,
7029 : add a call to set_record_marker. */
7030 :
7031 26465 : if (flag_record_marker != 0)
7032 : {
7033 18 : tmp = build_call_expr_loc (input_location,
7034 : gfor_fndecl_set_record_marker, 1,
7035 : build_int_cst (integer_type_node,
7036 18 : flag_record_marker));
7037 18 : gfc_add_expr_to_block (&body, tmp);
7038 : }
7039 :
7040 26465 : if (flag_max_subrecord_length != 0)
7041 : {
7042 6 : tmp = build_call_expr_loc (input_location,
7043 : gfor_fndecl_set_max_subrecord_length, 1,
7044 : build_int_cst (integer_type_node,
7045 6 : flag_max_subrecord_length));
7046 6 : gfc_add_expr_to_block (&body, tmp);
7047 : }
7048 :
7049 : /* Call MAIN__(). */
7050 26465 : tmp = build_call_expr_loc (input_location,
7051 : fndecl, 0);
7052 26465 : gfc_add_expr_to_block (&body, tmp);
7053 :
7054 : /* Mark MAIN__ as used. */
7055 26465 : TREE_USED (fndecl) = 1;
7056 :
7057 : /* Coarray: Call _gfortran_caf_finalize(void). */
7058 26465 : if (flag_coarray == GFC_FCOARRAY_LIB)
7059 : {
7060 401 : tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0);
7061 401 : gfc_add_expr_to_block (&body, tmp);
7062 : }
7063 :
7064 : /* "return 0". */
7065 26465 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node,
7066 26465 : DECL_RESULT (ftn_main),
7067 : integer_zero_node);
7068 26465 : tmp = build1_v (RETURN_EXPR, tmp);
7069 26465 : gfc_add_expr_to_block (&body, tmp);
7070 :
7071 :
7072 26465 : DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body);
7073 26465 : decl = getdecls ();
7074 :
7075 : /* Finish off this function and send it for code generation. */
7076 26465 : poplevel (1, 1);
7077 26465 : BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main;
7078 :
7079 52930 : DECL_SAVED_TREE (ftn_main)
7080 52930 : = fold_build3_loc (DECL_SOURCE_LOCATION (ftn_main), BIND_EXPR,
7081 26465 : void_type_node, decl, DECL_SAVED_TREE (ftn_main),
7082 26465 : DECL_INITIAL (ftn_main));
7083 :
7084 : /* Output the GENERIC tree. */
7085 26465 : dump_function (TDI_original, ftn_main);
7086 :
7087 26465 : cgraph_node::finalize_function (ftn_main, true);
7088 :
7089 26465 : if (old_context)
7090 : {
7091 0 : pop_function_context ();
7092 0 : saved_function_decls = saved_parent_function_decls;
7093 : }
7094 26465 : current_function_decl = old_context;
7095 26465 : }
7096 :
7097 :
7098 : /* Generate an appropriate return-statement for a procedure. */
7099 :
7100 : tree
7101 15393 : gfc_generate_return (void)
7102 : {
7103 15393 : gfc_symbol* sym;
7104 15393 : tree result;
7105 15393 : tree fndecl;
7106 :
7107 15393 : sym = current_procedure_symbol;
7108 15393 : fndecl = sym->backend_decl;
7109 :
7110 15393 : if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node)
7111 : result = NULL_TREE;
7112 : else
7113 : {
7114 13100 : result = get_proc_result (sym);
7115 :
7116 : /* Set the return value to the dummy result variable. The
7117 : types may be different for scalar default REAL functions
7118 : with -ff2c, therefore we have to convert. */
7119 13100 : if (result != NULL_TREE)
7120 : {
7121 13089 : result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result);
7122 26178 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7123 13089 : TREE_TYPE (result), DECL_RESULT (fndecl),
7124 : result);
7125 : }
7126 : else
7127 : {
7128 : /* If the function does not have a result variable, result is
7129 : NULL_TREE, and a 'return' is generated without a variable.
7130 : The following generates a 'return __result_XXX' where XXX is
7131 : the function name. */
7132 11 : if (sym == sym->result && sym->attr.function && !flag_f2c)
7133 : {
7134 8 : result = gfc_get_fake_result_decl (sym, 0);
7135 16 : result = fold_build2_loc (input_location, MODIFY_EXPR,
7136 8 : TREE_TYPE (result),
7137 8 : DECL_RESULT (fndecl), result);
7138 : }
7139 : }
7140 : }
7141 :
7142 15393 : return build1_v (RETURN_EXPR, result);
7143 : }
7144 :
7145 :
7146 : static void
7147 1075713 : is_from_ieee_module (gfc_symbol *sym)
7148 : {
7149 1075713 : if (sym->from_intmod == INTMOD_IEEE_FEATURES
7150 : || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS
7151 1075713 : || sym->from_intmod == INTMOD_IEEE_ARITHMETIC)
7152 120520 : seen_ieee_symbol = 1;
7153 1075713 : }
7154 :
7155 :
7156 : static int
7157 86049 : is_ieee_module_used (gfc_namespace *ns)
7158 : {
7159 86049 : seen_ieee_symbol = 0;
7160 0 : gfc_traverse_ns (ns, is_from_ieee_module);
7161 86049 : return seen_ieee_symbol;
7162 : }
7163 :
7164 :
7165 : static gfc_omp_clauses *module_oacc_clauses;
7166 :
7167 :
7168 : static void
7169 146 : add_clause (gfc_symbol *sym, gfc_omp_map_op map_op)
7170 : {
7171 146 : gfc_omp_namelist *n;
7172 :
7173 146 : n = gfc_get_omp_namelist ();
7174 146 : n->sym = sym;
7175 146 : n->where = sym->declared_at;
7176 146 : n->u.map.op = map_op;
7177 :
7178 146 : if (!module_oacc_clauses)
7179 124 : module_oacc_clauses = gfc_get_omp_clauses ();
7180 :
7181 146 : if (module_oacc_clauses->lists[OMP_LIST_MAP])
7182 22 : n->next = module_oacc_clauses->lists[OMP_LIST_MAP];
7183 :
7184 146 : module_oacc_clauses->lists[OMP_LIST_MAP] = n;
7185 146 : }
7186 :
7187 :
7188 : static void
7189 1107040 : find_module_oacc_declare_clauses (gfc_symbol *sym)
7190 : {
7191 1107040 : if (sym->attr.use_assoc)
7192 : {
7193 520033 : gfc_omp_map_op map_op;
7194 :
7195 520033 : if (sym->attr.oacc_declare_create)
7196 520033 : map_op = OMP_MAP_FORCE_ALLOC;
7197 :
7198 520033 : if (sym->attr.oacc_declare_copyin)
7199 2 : map_op = OMP_MAP_FORCE_TO;
7200 :
7201 520033 : if (sym->attr.oacc_declare_deviceptr)
7202 0 : map_op = OMP_MAP_FORCE_DEVICEPTR;
7203 :
7204 520033 : if (sym->attr.oacc_declare_device_resident)
7205 34 : map_op = OMP_MAP_DEVICE_RESIDENT;
7206 :
7207 520033 : if (sym->attr.oacc_declare_create
7208 519923 : || sym->attr.oacc_declare_copyin
7209 519921 : || sym->attr.oacc_declare_deviceptr
7210 519921 : || sym->attr.oacc_declare_device_resident)
7211 : {
7212 146 : sym->attr.referenced = 1;
7213 146 : add_clause (sym, map_op);
7214 : }
7215 : }
7216 1107040 : }
7217 :
7218 :
7219 : void
7220 100272 : finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block)
7221 : {
7222 100272 : gfc_code *code;
7223 100272 : gfc_oacc_declare *oc;
7224 100272 : locus where;
7225 100272 : gfc_omp_clauses *omp_clauses = NULL;
7226 100272 : gfc_omp_namelist *n, *p;
7227 100272 : module_oacc_clauses = NULL;
7228 :
7229 100272 : gfc_locus_from_location (&where, input_location);
7230 100272 : gfc_traverse_ns (ns, find_module_oacc_declare_clauses);
7231 :
7232 100272 : if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM)
7233 : {
7234 45 : gfc_oacc_declare *new_oc;
7235 :
7236 45 : new_oc = gfc_get_oacc_declare ();
7237 45 : new_oc->next = ns->oacc_declare;
7238 45 : new_oc->clauses = module_oacc_clauses;
7239 :
7240 45 : ns->oacc_declare = new_oc;
7241 : }
7242 :
7243 100272 : if (!ns->oacc_declare)
7244 : return;
7245 :
7246 190 : for (oc = ns->oacc_declare; oc; oc = oc->next)
7247 : {
7248 101 : if (oc->module_var)
7249 0 : continue;
7250 :
7251 101 : if (block)
7252 2 : gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed "
7253 : "in BLOCK construct", &oc->loc);
7254 :
7255 :
7256 101 : if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP])
7257 : {
7258 88 : if (omp_clauses == NULL)
7259 : {
7260 76 : omp_clauses = oc->clauses;
7261 76 : continue;
7262 : }
7263 :
7264 48 : for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next)
7265 : ;
7266 :
7267 12 : gcc_assert (p->next == NULL);
7268 :
7269 12 : p->next = omp_clauses->lists[OMP_LIST_MAP];
7270 12 : omp_clauses = oc->clauses;
7271 : }
7272 : }
7273 :
7274 89 : if (!omp_clauses)
7275 : return;
7276 :
7277 212 : for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next)
7278 : {
7279 136 : switch (n->u.map.op)
7280 : {
7281 27 : case OMP_MAP_DEVICE_RESIDENT:
7282 27 : n->u.map.op = OMP_MAP_FORCE_ALLOC;
7283 27 : break;
7284 :
7285 : default:
7286 : break;
7287 : }
7288 : }
7289 :
7290 76 : code = XCNEW (gfc_code);
7291 76 : code->op = EXEC_OACC_DECLARE;
7292 76 : code->loc = where;
7293 :
7294 76 : code->ext.oacc_declare = gfc_get_oacc_declare ();
7295 76 : code->ext.oacc_declare->clauses = omp_clauses;
7296 :
7297 76 : code->block = XCNEW (gfc_code);
7298 76 : code->block->op = EXEC_OACC_DECLARE;
7299 76 : code->block->loc = where;
7300 :
7301 76 : if (ns->code)
7302 73 : code->block->next = ns->code;
7303 :
7304 76 : ns->code = code;
7305 :
7306 76 : return;
7307 : }
7308 :
7309 : static void
7310 1820 : gfc_conv_cfi_to_gfc (stmtblock_t *init, stmtblock_t *finally,
7311 : tree cfi_desc, tree gfc_desc, gfc_symbol *sym)
7312 : {
7313 1820 : stmtblock_t block;
7314 1820 : gfc_init_block (&block);
7315 1820 : tree cfi = build_fold_indirect_ref_loc (input_location, cfi_desc);
7316 1820 : tree idx, etype, tmp, tmp2, size_var = NULL_TREE, rank = NULL_TREE;
7317 1820 : bool do_copy_inout = false;
7318 :
7319 : /* When allocatable + intent out, free the cfi descriptor. */
7320 1820 : if (sym->attr.allocatable && sym->attr.intent == INTENT_OUT)
7321 : {
7322 54 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7323 54 : tree call = builtin_decl_explicit (BUILT_IN_FREE);
7324 54 : call = build_call_expr_loc (input_location, call, 1, tmp);
7325 54 : gfc_add_expr_to_block (&block, fold_convert (void_type_node, call));
7326 54 : gfc_add_modify (&block, tmp,
7327 54 : fold_convert (TREE_TYPE (tmp), null_pointer_node));
7328 : }
7329 :
7330 : /* -fcheck=bound: Do version, rank, attribute, type and is-NULL checks. */
7331 1820 : if (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS)
7332 : {
7333 654 : char *msg;
7334 654 : tree tmp3;
7335 654 : msg = xasprintf ("Unexpected version %%d (expected %d) in CFI descriptor "
7336 : "passed to dummy argument %s", CFI_VERSION, sym->name);
7337 654 : tmp2 = gfc_get_cfi_desc_version (cfi);
7338 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node, tmp2,
7339 654 : build_int_cst (TREE_TYPE (tmp2), CFI_VERSION));
7340 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7341 : msg, tmp2);
7342 654 : free (msg);
7343 :
7344 : /* Rank check; however, for character(len=*), assumed/explicit-size arrays
7345 : are permitted to differ in rank according to the Fortran rules. */
7346 654 : if (sym->as && sym->as->type != AS_ASSUMED_SIZE
7347 546 : && sym->as->type != AS_EXPLICIT)
7348 : {
7349 438 : if (sym->as->rank != -1)
7350 222 : msg = xasprintf ("Invalid rank %%d (expected %d) in CFI descriptor "
7351 : "passed to dummy argument %s", sym->as->rank,
7352 : sym->name);
7353 : else
7354 216 : msg = xasprintf ("Invalid rank %%d (expected 0..%d) in CFI "
7355 : "descriptor passed to dummy argument %s",
7356 : CFI_MAX_RANK, sym->name);
7357 :
7358 438 : tmp3 = tmp2 = tmp = gfc_get_cfi_desc_rank (cfi);
7359 438 : if (sym->as->rank != -1)
7360 222 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7361 : tmp, build_int_cst (signed_char_type_node,
7362 222 : sym->as->rank));
7363 : else
7364 : {
7365 216 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node,
7366 216 : tmp, build_zero_cst (TREE_TYPE (tmp)));
7367 216 : tmp2 = fold_build2_loc (input_location, GT_EXPR,
7368 : boolean_type_node, tmp2,
7369 216 : build_int_cst (TREE_TYPE (tmp2),
7370 : CFI_MAX_RANK));
7371 216 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7372 : boolean_type_node, tmp, tmp2);
7373 : }
7374 438 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7375 : msg, tmp3);
7376 438 : free (msg);
7377 : }
7378 :
7379 654 : tmp3 = tmp = gfc_get_cfi_desc_attribute (cfi);
7380 654 : if (sym->attr.allocatable || sym->attr.pointer)
7381 : {
7382 6 : int attr = (sym->attr.pointer ? CFI_attribute_pointer
7383 : : CFI_attribute_allocatable);
7384 12 : msg = xasprintf ("Invalid attribute %%d (expected %d) in CFI "
7385 : "descriptor passed to dummy argument %s with %s "
7386 : "attribute", attr, sym->name,
7387 : sym->attr.pointer ? "pointer" : "allocatable");
7388 6 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7389 6 : tmp, build_int_cst (TREE_TYPE (tmp), attr));
7390 6 : }
7391 : else
7392 : {
7393 648 : int amin = MIN (CFI_attribute_pointer,
7394 : MIN (CFI_attribute_allocatable, CFI_attribute_other));
7395 648 : int amax = MAX (CFI_attribute_pointer,
7396 : MAX (CFI_attribute_allocatable, CFI_attribute_other));
7397 648 : msg = xasprintf ("Invalid attribute %%d (expected %d..%d) in CFI "
7398 : "descriptor passed to nonallocatable, nonpointer "
7399 : "dummy argument %s", amin, amax, sym->name);
7400 648 : tmp2 = tmp;
7401 648 : tmp = fold_build2_loc (input_location, LT_EXPR, boolean_type_node, tmp,
7402 648 : build_int_cst (TREE_TYPE (tmp), amin));
7403 648 : tmp2 = fold_build2_loc (input_location, GT_EXPR, boolean_type_node, tmp2,
7404 648 : build_int_cst (TREE_TYPE (tmp2), amax));
7405 648 : tmp = fold_build2_loc (input_location, TRUTH_AND_EXPR,
7406 : boolean_type_node, tmp, tmp2);
7407 648 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7408 : msg, tmp3);
7409 648 : free (msg);
7410 648 : msg = xasprintf ("Invalid unallocatated/unassociated CFI "
7411 : "descriptor passed to nonallocatable, nonpointer "
7412 : "dummy argument %s", sym->name);
7413 648 : tmp3 = tmp = gfc_get_cfi_desc_base_addr (cfi),
7414 648 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7415 : tmp, null_pointer_node);
7416 : }
7417 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7418 : msg, tmp3);
7419 654 : free (msg);
7420 :
7421 654 : if (sym->ts.type != BT_ASSUMED)
7422 : {
7423 654 : int type = CFI_type_other;
7424 654 : if (sym->ts.f90_type == BT_VOID)
7425 : {
7426 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7427 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7428 : }
7429 : else
7430 654 : switch (sym->ts.type)
7431 : {
7432 6 : case BT_INTEGER:
7433 6 : case BT_LOGICAL:
7434 6 : case BT_REAL:
7435 6 : case BT_COMPLEX:
7436 6 : type = CFI_type_from_type_kind (sym->ts.type, sym->ts.kind);
7437 6 : break;
7438 648 : case BT_CHARACTER:
7439 648 : type = CFI_type_from_type_kind (CFI_type_Character,
7440 : sym->ts.kind);
7441 648 : break;
7442 0 : case BT_DERIVED:
7443 0 : type = CFI_type_struct;
7444 0 : break;
7445 0 : case BT_VOID:
7446 0 : type = (sym->ts.u.derived->intmod_sym_id == ISOCBINDING_FUNPTR
7447 0 : ? CFI_type_cfunptr : CFI_type_cptr);
7448 : break;
7449 :
7450 0 : case BT_UNSIGNED:
7451 0 : gfc_internal_error ("Unsigned not yet implemented");
7452 :
7453 0 : case BT_ASSUMED:
7454 0 : case BT_CLASS:
7455 0 : case BT_PROCEDURE:
7456 0 : case BT_HOLLERITH:
7457 0 : case BT_UNION:
7458 0 : case BT_BOZ:
7459 0 : case BT_UNKNOWN:
7460 0 : gcc_unreachable ();
7461 : }
7462 654 : msg = xasprintf ("Unexpected type %%d (expected %d) in CFI descriptor"
7463 : " passed to dummy argument %s", type, sym->name);
7464 654 : tmp2 = tmp = gfc_get_cfi_desc_type (cfi);
7465 654 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7466 654 : tmp, build_int_cst (TREE_TYPE (tmp), type));
7467 654 : gfc_trans_runtime_check (true, false, tmp, &block, &sym->declared_at,
7468 : msg, tmp2);
7469 654 : free (msg);
7470 : }
7471 : }
7472 :
7473 1820 : if (!sym->attr.referenced)
7474 73 : goto done;
7475 :
7476 : /* Set string length for len=* and len=:, otherwise, it is already set. */
7477 1747 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
7478 : {
7479 647 : tmp = fold_convert (gfc_array_index_type,
7480 : gfc_get_cfi_desc_elem_len (cfi));
7481 647 : if (sym->ts.kind != 1)
7482 197 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7483 : gfc_array_index_type, tmp,
7484 : build_int_cst (gfc_charlen_type_node,
7485 197 : sym->ts.kind));
7486 647 : gfc_add_modify (&block, sym->ts.u.cl->backend_decl, tmp);
7487 : }
7488 :
7489 1747 : if (sym->ts.type == BT_CHARACTER
7490 1020 : && !INTEGER_CST_P (sym->ts.u.cl->backend_decl))
7491 : {
7492 804 : gfc_conv_string_length (sym->ts.u.cl, NULL, &block);
7493 804 : gfc_trans_vla_type_sizes (sym, &block);
7494 : }
7495 :
7496 : /* gfc->data = cfi->base_addr - or for scalars: gfc = cfi->base_addr.
7497 : assumed-size/explicit-size arrays end up here for character(len=*)
7498 : only. */
7499 1747 : if (!sym->attr.dimension || !GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7500 : {
7501 418 : tmp = gfc_get_cfi_desc_base_addr (cfi);
7502 418 : gfc_add_modify (&block, gfc_desc,
7503 418 : fold_convert (TREE_TYPE (gfc_desc), tmp));
7504 418 : if (!sym->attr.dimension)
7505 164 : goto done;
7506 : }
7507 :
7508 1583 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7509 : {
7510 : /* gfc->dtype = ... (from declaration, not from cfi). */
7511 1329 : etype = gfc_get_element_type (TREE_TYPE (gfc_desc));
7512 1329 : gfc_add_modify (&block, gfc_conv_descriptor_dtype (gfc_desc),
7513 1329 : gfc_get_dtype_rank_type (sym->as->rank, etype));
7514 : /* gfc->data = cfi->base_addr. */
7515 1329 : gfc_conv_descriptor_data_set (&block, gfc_desc,
7516 : gfc_get_cfi_desc_base_addr (cfi));
7517 : }
7518 :
7519 1583 : if (sym->ts.type == BT_ASSUMED)
7520 : {
7521 : /* For type(*), take elem_len + dtype.type from the actual argument. */
7522 19 : gfc_add_modify (&block, gfc_conv_descriptor_elem_len (gfc_desc),
7523 : gfc_get_cfi_desc_elem_len (cfi));
7524 19 : tree cond;
7525 19 : tree ctype = gfc_get_cfi_desc_type (cfi);
7526 19 : ctype = fold_build2_loc (input_location, BIT_AND_EXPR, TREE_TYPE (ctype),
7527 19 : ctype, build_int_cst (TREE_TYPE (ctype),
7528 : CFI_type_mask));
7529 19 : tree type = gfc_conv_descriptor_type (gfc_desc);
7530 :
7531 : /* if (CFI_type_cptr) BT_VOID else BT_UNKNOWN */
7532 : /* Note: BT_VOID is could also be CFI_type_funcptr, but assume c_ptr. */
7533 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7534 19 : build_int_cst (TREE_TYPE (ctype), CFI_type_cptr));
7535 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7536 19 : build_int_cst (TREE_TYPE (type), BT_VOID));
7537 19 : tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7538 : type,
7539 19 : build_int_cst (TREE_TYPE (type), BT_UNKNOWN));
7540 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7541 : tmp, tmp2);
7542 : /* if (CFI_type_struct) BT_DERIVED else < tmp2 > */
7543 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7544 19 : build_int_cst (TREE_TYPE (ctype),
7545 : CFI_type_struct));
7546 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7547 19 : build_int_cst (TREE_TYPE (type), BT_DERIVED));
7548 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7549 : tmp, tmp2);
7550 : /* if (CFI_type_Character) BT_CHARACTER else < tmp2 > */
7551 : /* Note: this is kind=1, CFI_type_ucs4_char is handled in the 'else if'
7552 : before (see below, as generated bottom up). */
7553 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7554 19 : build_int_cst (TREE_TYPE (ctype),
7555 : CFI_type_Character));
7556 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7557 19 : build_int_cst (TREE_TYPE (type), BT_CHARACTER));
7558 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7559 : tmp, tmp2);
7560 : /* if (CFI_type_ucs4_char) BT_CHARACTER else < tmp2 > */
7561 : /* Note: gfc->elem_len = cfi->elem_len/4. */
7562 : /* However, assuming that CFI_type_ucs4_char cannot be recovered, leave
7563 : gfc->elem_len == cfi->elem_len, which helps with operations which use
7564 : sizeof() in Fortran and cfi->elem_len in C. */
7565 19 : tmp = gfc_get_cfi_desc_type (cfi);
7566 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, tmp,
7567 19 : build_int_cst (TREE_TYPE (tmp),
7568 : CFI_type_ucs4_char));
7569 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7570 19 : build_int_cst (TREE_TYPE (type), BT_CHARACTER));
7571 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7572 : tmp, tmp2);
7573 : /* if (CFI_type_Complex) BT_COMPLEX + cfi->elem_len/2 else < tmp2 > */
7574 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7575 19 : build_int_cst (TREE_TYPE (ctype),
7576 : CFI_type_Complex));
7577 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node, type,
7578 19 : build_int_cst (TREE_TYPE (type), BT_COMPLEX));
7579 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7580 : tmp, tmp2);
7581 : /* if (CFI_type_Integer || CFI_type_Logical || CFI_type_Real)
7582 : ctype else <tmp2> */
7583 19 : cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7584 19 : build_int_cst (TREE_TYPE (ctype),
7585 : CFI_type_Integer));
7586 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7587 19 : build_int_cst (TREE_TYPE (ctype),
7588 : CFI_type_Logical));
7589 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7590 : cond, tmp);
7591 19 : tmp = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node, ctype,
7592 19 : build_int_cst (TREE_TYPE (ctype),
7593 : CFI_type_Real));
7594 19 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7595 : cond, tmp);
7596 19 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7597 19 : type, fold_convert (TREE_TYPE (type), ctype));
7598 19 : tmp2 = fold_build3_loc (input_location, COND_EXPR, void_type_node, cond,
7599 : tmp, tmp2);
7600 19 : gfc_add_expr_to_block (&block, tmp2);
7601 : }
7602 :
7603 1583 : if (sym->as->rank < 0)
7604 : {
7605 : /* Set gfc->dtype.rank, if assumed-rank. */
7606 587 : rank = fold_convert_loc (input_location, gfc_array_dim_rank_type,
7607 : gfc_get_cfi_desc_rank (cfi));
7608 587 : gfc_add_modify (&block, gfc_conv_descriptor_rank (gfc_desc), rank);
7609 : }
7610 996 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7611 : /* In that case, the CFI rank and the declared rank can differ. */
7612 254 : rank = fold_convert_loc (input_location, gfc_array_dim_rank_type,
7613 : gfc_get_cfi_desc_rank (cfi));
7614 : else
7615 742 : rank = gfc_rank_cst[sym->as->rank];
7616 :
7617 : /* With bind(C), the standard requires that both Fortran callers and callees
7618 : handle noncontiguous arrays passed to an dummy with 'contiguous' attribute
7619 : and with character(len=*) + assumed-size/explicit-size arrays.
7620 : cf. Fortran 2018, 18.3.6, paragraph 5 (and for the caller: para. 6). */
7621 1583 : if ((sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length
7622 550 : && (sym->as->type == AS_ASSUMED_SIZE || sym->as->type == AS_EXPLICIT))
7623 1329 : || sym->attr.contiguous)
7624 : {
7625 517 : do_copy_inout = true;
7626 517 : gcc_assert (!sym->attr.pointer);
7627 517 : stmtblock_t block2;
7628 517 : tree data;
7629 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7630 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7631 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7632 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7633 : else
7634 : data = gfc_desc;
7635 :
7636 : /* Is copy-in/out needed? */
7637 : /* do_copyin = rank != 0 && !assumed-size */
7638 517 : tree cond_var = gfc_create_var (boolean_type_node, "do_copyin");
7639 517 : tree cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7640 517 : rank, build_zero_cst (TREE_TYPE (rank)));
7641 : /* dim[rank-1].extent != -1 -> assumed size*/
7642 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (rank),
7643 517 : rank, build_int_cst (TREE_TYPE (rank), 1));
7644 517 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7645 : gfc_get_cfi_dim_extent (cfi, tmp),
7646 : build_int_cst (gfc_array_index_type, -1));
7647 517 : cond = fold_build2_loc (input_location, TRUTH_ANDIF_EXPR,
7648 : boolean_type_node, cond, tmp);
7649 517 : gfc_add_modify (&block, cond_var, cond);
7650 : /* if (do_copyin) do_copyin = ... || ... || ... */
7651 517 : gfc_init_block (&block2);
7652 : /* dim[0].sm != elem_len */
7653 517 : tmp = fold_convert (gfc_array_index_type,
7654 : gfc_get_cfi_desc_elem_len (cfi));
7655 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7656 : gfc_get_cfi_dim_sm (cfi, gfc_index_zero_node),
7657 : tmp);
7658 517 : gfc_add_modify (&block2, cond_var, cond);
7659 :
7660 : /* for (i = 1; i < rank; ++i)
7661 : cond &&= dim[i].sm != (dv->dim[i - 1].sm * dv->dim[i - 1].extent) */
7662 517 : idx = gfc_create_var (gfc_array_dim_rank_type, "idx");
7663 517 : stmtblock_t loop_body;
7664 517 : gfc_init_block (&loop_body);
7665 517 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7666 517 : idx, build_int_cst (TREE_TYPE (idx), 1));
7667 517 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, tmp);
7668 517 : tmp = gfc_get_cfi_dim_extent (cfi, tmp);
7669 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp),
7670 : tmp2, tmp);
7671 517 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7672 : gfc_get_cfi_dim_sm (cfi, idx), tmp);
7673 517 : cond = fold_build2_loc (input_location, TRUTH_OR_EXPR, boolean_type_node,
7674 : cond_var, cond);
7675 517 : gfc_add_modify (&loop_body, cond_var, cond);
7676 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7677 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7678 : gfc_finish_block (&loop_body));
7679 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7680 : build_empty_stmt (input_location));
7681 517 : gfc_add_expr_to_block (&block, tmp);
7682 :
7683 : /* Copy-in body. */
7684 517 : gfc_init_block (&block2);
7685 : /* size = dim[0].extent; for (i = 1; i < rank; ++i) size *= dim[i].extent */
7686 517 : size_var = gfc_create_var (size_type_node, "size");
7687 517 : tmp = fold_convert (size_type_node,
7688 : gfc_get_cfi_dim_extent (cfi, gfc_index_zero_node));
7689 517 : gfc_add_modify (&block2, size_var, tmp);
7690 :
7691 517 : gfc_init_block (&loop_body);
7692 517 : tmp = fold_convert (size_type_node,
7693 : gfc_get_cfi_dim_extent (cfi, idx));
7694 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7695 : size_var, fold_convert (size_type_node, tmp));
7696 517 : gfc_add_modify (&loop_body, size_var, tmp);
7697 1034 : gfc_simple_for_loop (&block2, idx, build_int_cst (TREE_TYPE (idx), 1),
7698 517 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7699 : gfc_finish_block (&loop_body));
7700 : /* data = malloc (size * elem_len) */
7701 517 : tmp = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7702 : size_var, gfc_get_cfi_desc_elem_len (cfi));
7703 517 : tree call = builtin_decl_explicit (BUILT_IN_MALLOC);
7704 517 : call = build_call_expr_loc (input_location, call, 1, tmp);
7705 517 : gfc_add_modify (&block2, data, fold_convert (TREE_TYPE (data), call));
7706 :
7707 : /* Copy the data:
7708 : for (idx = 0; idx < size; ++idx)
7709 : {
7710 : shift = 0;
7711 : tmpidx = idx
7712 : for (d = 0; d < rank; ++d)
7713 : {
7714 : shift += (tmpidx % extent[d]) * sm[d]
7715 : tmpidx = tmpidx / extend[d]
7716 : }
7717 : memcpy (lhs + idx*elem_len, rhs + shift, elem_len)
7718 : } .*/
7719 517 : idx = gfc_create_var (size_type_node, "arrayidx");
7720 517 : gfc_init_block (&loop_body);
7721 517 : tree shift = gfc_create_var (size_type_node, "shift");
7722 517 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7723 517 : gfc_add_modify (&loop_body, shift, build_zero_cst (TREE_TYPE (shift)));
7724 517 : gfc_add_modify (&loop_body, tmpidx, idx);
7725 517 : stmtblock_t inner_loop;
7726 517 : gfc_init_block (&inner_loop);
7727 517 : tree dim = gfc_create_var (gfc_array_dim_rank_type, "dim");
7728 : /* shift += (tmpidx % extent[d]) * sm[d] */
7729 517 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7730 : size_type_node, tmpidx,
7731 : fold_convert (size_type_node,
7732 : gfc_get_cfi_dim_extent (cfi, dim)));
7733 517 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7734 : size_type_node, tmp,
7735 : fold_convert (size_type_node,
7736 : gfc_get_cfi_dim_sm (cfi, dim)));
7737 517 : gfc_add_modify (&inner_loop, shift,
7738 : fold_build2_loc (input_location, PLUS_EXPR,
7739 : size_type_node, shift, tmp));
7740 : /* tmpidx = tmpidx / extend[d] */
7741 517 : tmp = fold_convert (size_type_node, gfc_get_cfi_dim_extent (cfi, dim));
7742 517 : gfc_add_modify (&inner_loop, tmpidx,
7743 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7744 : size_type_node, tmpidx, tmp));
7745 517 : gfc_simple_for_loop (&loop_body, dim, gfc_rank_cst[0], rank, LT_EXPR,
7746 : gfc_rank_cst[1], gfc_finish_block (&inner_loop));
7747 : /* Assign. */
7748 517 : tmp = fold_convert (pchar_type_node, gfc_get_cfi_desc_base_addr (cfi));
7749 517 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
7750 517 : tree lhs;
7751 : /* memcpy (lhs + idx*elem_len, rhs + shift, elem_len) */
7752 517 : tree elem_len;
7753 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7754 263 : elem_len = gfc_conv_descriptor_elem_len (gfc_desc);
7755 : else
7756 254 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
7757 517 : lhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7758 : elem_len, idx);
7759 517 : lhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR, pchar_type_node,
7760 : fold_convert (pchar_type_node, data), lhs);
7761 517 : tmp = fold_convert (pvoid_type_node, tmp);
7762 517 : lhs = fold_convert (pvoid_type_node, lhs);
7763 517 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
7764 517 : call = build_call_expr_loc (input_location, call, 3, lhs, tmp, elem_len);
7765 517 : gfc_add_expr_to_block (&loop_body, fold_convert (void_type_node, call));
7766 1034 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7767 517 : size_var, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7768 : gfc_finish_block (&loop_body));
7769 : /* if (cond) { block2 } */
7770 517 : tmp = build3_v (COND_EXPR, cond_var, gfc_finish_block (&block2),
7771 : build_empty_stmt (input_location));
7772 517 : gfc_add_expr_to_block (&block, tmp);
7773 : }
7774 :
7775 1583 : if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7776 : {
7777 254 : tree offset, type;
7778 254 : type = TREE_TYPE (gfc_desc);
7779 254 : gfc_trans_array_bounds (type, sym, &offset, &block);
7780 254 : if (VAR_P (GFC_TYPE_ARRAY_OFFSET (type)))
7781 144 : gfc_add_modify (&block, GFC_TYPE_ARRAY_OFFSET (type), offset);
7782 254 : goto done;
7783 : }
7784 :
7785 : /* If cfi->data != NULL. */
7786 1329 : stmtblock_t block2;
7787 1329 : gfc_init_block (&block2);
7788 :
7789 : /* if do_copy_inout: gfc->dspan = gfc->dtype.elem_len
7790 : We use gfc instead of cfi on the RHS as this might be a constant. */
7791 1329 : tmp = fold_convert (gfc_array_index_type,
7792 : gfc_conv_descriptor_elem_len (gfc_desc));
7793 1329 : if (!do_copy_inout)
7794 : {
7795 : /* gfc->dspan = ((cfi->dim[0].sm % gfc->elem_len)
7796 : ? cfi->dim[0].sm : gfc->elem_len). */
7797 1066 : tree cond;
7798 1066 : tree tmp2 = gfc_get_cfi_dim_sm (cfi, gfc_rank_cst[0]);
7799 1066 : cond = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7800 : gfc_array_index_type, tmp2, tmp);
7801 1066 : cond = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7802 : cond, gfc_index_zero_node);
7803 1066 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7804 : tmp2, tmp);
7805 : }
7806 1329 : gfc_conv_descriptor_span_set (&block2, gfc_desc, tmp);
7807 :
7808 : /* Calculate offset + set lbound, ubound and stride. */
7809 1329 : gfc_conv_descriptor_offset_set (&block2, gfc_desc, gfc_index_zero_node);
7810 1329 : if (sym->as->rank > 0 && !sym->attr.pointer && !sym->attr.allocatable)
7811 1274 : for (int i = 0; i < sym->as->rank; ++i)
7812 : {
7813 718 : gfc_se se;
7814 718 : gfc_init_se (&se, NULL );
7815 718 : if (sym->as->lower[i])
7816 : {
7817 718 : gfc_conv_expr (&se, sym->as->lower[i]);
7818 718 : tmp = se.expr;
7819 : }
7820 : else
7821 0 : tmp = gfc_index_one_node;
7822 718 : gfc_add_block_to_block (&block2, &se.pre);
7823 718 : gfc_conv_descriptor_lbound_set (&block2, gfc_desc, gfc_rank_cst[i],
7824 : tmp);
7825 718 : gfc_add_block_to_block (&block2, &se.post);
7826 : }
7827 :
7828 : /* Loop: for (i = 0; i < rank; ++i). */
7829 1329 : idx = gfc_create_var (gfc_array_dim_rank_type, "idx");
7830 :
7831 : /* Loop body. */
7832 1329 : stmtblock_t loop_body;
7833 1329 : gfc_init_block (&loop_body);
7834 : /* gfc->dim[i].lbound = ... */
7835 1329 : if (sym->attr.pointer || sym->attr.allocatable)
7836 : {
7837 276 : tmp = gfc_get_cfi_dim_lbound (cfi, idx);
7838 276 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx, tmp);
7839 : }
7840 1053 : else if (sym->as->rank < 0)
7841 497 : gfc_conv_descriptor_lbound_set (&loop_body, gfc_desc, idx,
7842 : gfc_index_one_node);
7843 :
7844 : /* gfc->dim[i].ubound = gfc->dim[i].lbound + cfi->dim[i].extent - 1. */
7845 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7846 : gfc_conv_descriptor_lbound_get (gfc_desc, idx),
7847 : gfc_index_one_node);
7848 1329 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type,
7849 : gfc_get_cfi_dim_extent (cfi, idx), tmp);
7850 1329 : gfc_conv_descriptor_ubound_set (&loop_body, gfc_desc, idx, tmp);
7851 :
7852 1329 : if (do_copy_inout)
7853 : {
7854 : /* gfc->dim[i].stride
7855 : = idx == 0 ? 1 : gfc->dim[i-1].stride * cfi->dim[i-1].extent */
7856 263 : tree cond = fold_build2_loc (input_location, EQ_EXPR, boolean_type_node,
7857 263 : idx, build_zero_cst (TREE_TYPE (idx)));
7858 263 : tmp = fold_build2_loc (input_location, MINUS_EXPR, TREE_TYPE (idx),
7859 263 : idx, build_int_cst (TREE_TYPE (idx), 1));
7860 263 : tree tmp2 = gfc_get_cfi_dim_extent (cfi, tmp);
7861 263 : tmp = gfc_conv_descriptor_stride_get (gfc_desc, tmp);
7862 263 : tmp = fold_build2_loc (input_location, MULT_EXPR, TREE_TYPE (tmp2),
7863 : tmp2, tmp);
7864 263 : tmp = build3_loc (input_location, COND_EXPR, gfc_array_index_type, cond,
7865 : gfc_index_one_node, tmp);
7866 : }
7867 : else
7868 : {
7869 : /* gfc->dim[i].stride = cfi->dim[i].sm / cfi>elem_len */
7870 1066 : tmp = gfc_get_cfi_dim_sm (cfi, idx);
7871 1066 : tmp = fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7872 : gfc_array_index_type, tmp,
7873 : fold_convert (gfc_array_index_type,
7874 : gfc_get_cfi_desc_elem_len (cfi)));
7875 : }
7876 1329 : gfc_conv_descriptor_stride_set (&loop_body, gfc_desc, idx, tmp);
7877 : /* gfc->offset -= gfc->dim[i].stride * gfc->dim[i].lbound. */
7878 1329 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
7879 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
7880 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
7881 1329 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
7882 : gfc_conv_descriptor_offset_get (gfc_desc), tmp);
7883 1329 : gfc_conv_descriptor_offset_set (&loop_body, gfc_desc, tmp);
7884 :
7885 : /* Generate loop. */
7886 2658 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
7887 1329 : rank, LT_EXPR, build_int_cst (TREE_TYPE (idx), 1),
7888 : gfc_finish_block (&loop_body));
7889 1329 : if (sym->attr.allocatable || sym->attr.pointer)
7890 : {
7891 276 : tmp = gfc_get_cfi_desc_base_addr (cfi),
7892 276 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
7893 : tmp, null_pointer_node);
7894 276 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
7895 : build_empty_stmt (input_location));
7896 276 : gfc_add_expr_to_block (&block, tmp);
7897 : }
7898 : else
7899 1053 : gfc_add_block_to_block (&block, &block2);
7900 :
7901 1820 : done:
7902 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
7903 1820 : if (sym->attr.optional)
7904 : {
7905 317 : tree present = fold_build2_loc (input_location, NE_EXPR,
7906 : boolean_type_node, cfi_desc,
7907 : null_pointer_node);
7908 317 : tmp = fold_build2_loc (input_location, MODIFY_EXPR, void_type_node,
7909 : sym->backend_decl,
7910 317 : fold_convert (TREE_TYPE (sym->backend_decl),
7911 : null_pointer_node));
7912 317 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block), tmp);
7913 317 : gfc_add_expr_to_block (init, tmp);
7914 : }
7915 : else
7916 1503 : gfc_add_block_to_block (init, &block);
7917 :
7918 1820 : if (!sym->attr.referenced)
7919 985 : return;
7920 :
7921 : /* If pointer not changed, nothing to be done (except copy out) */
7922 1747 : if (!do_copy_inout && ((!sym->attr.pointer && !sym->attr.allocatable)
7923 381 : || sym->attr.intent == INTENT_IN))
7924 : return;
7925 :
7926 835 : gfc_init_block (&block);
7927 :
7928 : /* For bind(C), Fortran does not permit mixing 'pointer' with 'contiguous' (or
7929 : len=*). Thus, when copy out is needed, the bounds of the descriptor remain
7930 : unchanged. */
7931 835 : if (do_copy_inout)
7932 : {
7933 517 : tree data, call;
7934 517 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7935 263 : data = gfc_conv_descriptor_data_get (gfc_desc);
7936 254 : else if (!POINTER_TYPE_P (TREE_TYPE (gfc_desc)))
7937 0 : data = gfc_build_addr_expr (NULL, gfc_desc);
7938 : else
7939 : data = gfc_desc;
7940 517 : gfc_init_block (&block2);
7941 517 : if (sym->attr.intent != INTENT_IN)
7942 : {
7943 : /* First, create the inner copy-out loop.
7944 : for (idx = 0; idx < size; ++idx)
7945 : {
7946 : shift = 0;
7947 : tmpidx = idx
7948 : for (d = 0; d < rank; ++d)
7949 : {
7950 : shift += (tmpidx % extent[d]) * sm[d]
7951 : tmpidx = tmpidx / extend[d]
7952 : }
7953 : memcpy (lhs + shift, rhs + idx*elem_len, elem_len)
7954 : } .*/
7955 292 : stmtblock_t loop_body;
7956 292 : idx = gfc_create_var (size_type_node, "arrayidx");
7957 292 : gfc_init_block (&loop_body);
7958 292 : tree shift = gfc_create_var (size_type_node, "shift");
7959 292 : tree tmpidx = gfc_create_var (size_type_node, "tmpidx");
7960 292 : gfc_add_modify (&loop_body, shift,
7961 292 : build_zero_cst (TREE_TYPE (shift)));
7962 292 : gfc_add_modify (&loop_body, tmpidx, idx);
7963 292 : stmtblock_t inner_loop;
7964 292 : gfc_init_block (&inner_loop);
7965 292 : tree dim = gfc_create_var (gfc_array_dim_rank_type, "dim");
7966 : /* shift += (tmpidx % extent[d]) * sm[d] */
7967 292 : tmp = fold_convert (size_type_node,
7968 : gfc_get_cfi_dim_extent (cfi, dim));
7969 292 : tmp = fold_build2_loc (input_location, TRUNC_MOD_EXPR,
7970 : size_type_node, tmpidx, tmp);
7971 292 : tmp = fold_build2_loc (input_location, MULT_EXPR,
7972 : size_type_node, tmp,
7973 : fold_convert (size_type_node,
7974 : gfc_get_cfi_dim_sm (cfi, dim)));
7975 292 : gfc_add_modify (&inner_loop, shift,
7976 : fold_build2_loc (input_location, PLUS_EXPR,
7977 : size_type_node, shift, tmp));
7978 : /* tmpidx = tmpidx / extend[d] */
7979 292 : tmp = fold_convert (size_type_node,
7980 : gfc_get_cfi_dim_extent (cfi, dim));
7981 292 : gfc_add_modify (&inner_loop, tmpidx,
7982 : fold_build2_loc (input_location, TRUNC_DIV_EXPR,
7983 : size_type_node, tmpidx, tmp));
7984 292 : gfc_simple_for_loop (&loop_body, dim, gfc_rank_cst[0], rank, LT_EXPR,
7985 : gfc_rank_cst[1], gfc_finish_block (&inner_loop));
7986 : /* Assign. */
7987 292 : tree rhs;
7988 292 : tmp = fold_convert (pchar_type_node,
7989 : gfc_get_cfi_desc_base_addr (cfi));
7990 292 : tmp = fold_build2 (POINTER_PLUS_EXPR, pchar_type_node, tmp, shift);
7991 : /* memcpy (lhs + shift, rhs + idx*elem_len, elem_len) */
7992 292 : tree elem_len;
7993 292 : if (GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (gfc_desc)))
7994 153 : elem_len = gfc_conv_descriptor_elem_len (gfc_desc);
7995 : else
7996 139 : elem_len = gfc_get_cfi_desc_elem_len (cfi);
7997 292 : rhs = fold_build2_loc (input_location, MULT_EXPR, size_type_node,
7998 : elem_len, idx);
7999 292 : rhs = fold_build2_loc (input_location, POINTER_PLUS_EXPR,
8000 : pchar_type_node,
8001 : fold_convert (pchar_type_node, data), rhs);
8002 292 : tmp = fold_convert (pvoid_type_node, tmp);
8003 292 : rhs = fold_convert (pvoid_type_node, rhs);
8004 292 : call = builtin_decl_explicit (BUILT_IN_MEMCPY);
8005 292 : call = build_call_expr_loc (input_location, call, 3, tmp, rhs,
8006 : elem_len);
8007 292 : gfc_add_expr_to_block (&loop_body,
8008 : fold_convert (void_type_node, call));
8009 584 : gfc_simple_for_loop (&block2, idx, build_zero_cst (TREE_TYPE (idx)),
8010 : size_var, LT_EXPR,
8011 292 : build_int_cst (TREE_TYPE (idx), 1),
8012 : gfc_finish_block (&loop_body));
8013 : }
8014 517 : call = builtin_decl_explicit (BUILT_IN_FREE);
8015 517 : call = build_call_expr_loc (input_location, call, 1, data);
8016 517 : gfc_add_expr_to_block (&block2, call);
8017 :
8018 : /* if (cfi->base_addr != gfc->data) { copy out; free(var) }; return */
8019 517 : tree tmp2 = gfc_get_cfi_desc_base_addr (cfi);
8020 517 : tmp2 = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
8021 517 : tmp2, fold_convert (TREE_TYPE (tmp2), data));
8022 517 : tmp = build3_v (COND_EXPR, tmp2, gfc_finish_block (&block2),
8023 : build_empty_stmt (input_location));
8024 517 : gfc_add_expr_to_block (&block, tmp);
8025 517 : goto done_finally;
8026 : }
8027 :
8028 : /* Update pointer + array data data on exit. */
8029 318 : tmp = gfc_get_cfi_desc_base_addr (cfi);
8030 318 : tmp2 = (!sym->attr.dimension
8031 318 : ? gfc_desc : gfc_conv_descriptor_data_get (gfc_desc));
8032 318 : gfc_add_modify (&block, tmp, fold_convert (TREE_TYPE (tmp), tmp2));
8033 :
8034 : /* Set string length for len=:, only. */
8035 318 : if (sym->ts.type == BT_CHARACTER && !sym->ts.u.cl->length)
8036 : {
8037 60 : tmp2 = gfc_get_cfi_desc_elem_len (cfi);
8038 60 : tmp = fold_convert (TREE_TYPE (tmp2), sym->ts.u.cl->backend_decl);
8039 60 : if (sym->ts.kind != 1)
8040 48 : tmp = fold_build2_loc (input_location, MULT_EXPR,
8041 24 : TREE_TYPE (tmp2), tmp,
8042 24 : build_int_cst (TREE_TYPE (tmp2), sym->ts.kind));
8043 60 : gfc_add_modify (&block, tmp2, tmp);
8044 : }
8045 :
8046 318 : if (!sym->attr.dimension)
8047 102 : goto done_finally;
8048 :
8049 216 : gfc_init_block (&block2);
8050 :
8051 : /* Loop: for (i = 0; i < rank; ++i). */
8052 216 : idx = gfc_create_var (gfc_array_dim_rank_type, "idx");
8053 :
8054 : /* Loop body. */
8055 216 : gfc_init_block (&loop_body);
8056 : /* cfi->dim[i].lower_bound = gfc->dim[i].lbound */
8057 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_lbound (cfi, idx),
8058 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
8059 : /* cfi->dim[i].extent = gfc->dim[i].ubound - gfc->dim[i].lbound + 1. */
8060 216 : tmp = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type,
8061 : gfc_conv_descriptor_ubound_get (gfc_desc, idx),
8062 : gfc_conv_descriptor_lbound_get (gfc_desc, idx));
8063 216 : tmp = fold_build2_loc (input_location, PLUS_EXPR, gfc_array_index_type, tmp,
8064 : gfc_index_one_node);
8065 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_extent (cfi, idx), tmp);
8066 : /* d->dim[n].sm = gfc->dim[i].stride * gfc->span); */
8067 216 : tmp = fold_build2_loc (input_location, MULT_EXPR, gfc_array_index_type,
8068 : gfc_conv_descriptor_stride_get (gfc_desc, idx),
8069 : gfc_conv_descriptor_span_get (gfc_desc));
8070 216 : gfc_add_modify (&loop_body, gfc_get_cfi_dim_sm (cfi, idx), tmp);
8071 :
8072 : /* Generate loop. */
8073 216 : gfc_simple_for_loop (&block2, idx, gfc_rank_cst[0], rank, LT_EXPR,
8074 : gfc_rank_cst[1], gfc_finish_block (&loop_body));
8075 : /* if (gfc->data != NULL) { block2 }. */
8076 216 : tmp = gfc_get_cfi_desc_base_addr (cfi),
8077 216 : tmp = fold_build2_loc (input_location, NE_EXPR, boolean_type_node,
8078 : tmp, null_pointer_node);
8079 216 : tmp = build3_v (COND_EXPR, tmp, gfc_finish_block (&block2),
8080 : build_empty_stmt (input_location));
8081 216 : gfc_add_expr_to_block (&block, tmp);
8082 :
8083 835 : done_finally:
8084 : /* If optional arg: 'if (arg) { block } else { local_arg = NULL; }'. */
8085 835 : if (sym->attr.optional)
8086 : {
8087 180 : tree present = fold_build2_loc (input_location, NE_EXPR,
8088 : boolean_type_node, cfi_desc,
8089 : null_pointer_node);
8090 180 : tmp = build3_v (COND_EXPR, present, gfc_finish_block (&block),
8091 : build_empty_stmt (input_location));
8092 180 : gfc_add_expr_to_block (finally, tmp);
8093 : }
8094 : else
8095 655 : gfc_add_block_to_block (finally, &block);
8096 : }
8097 :
8098 :
8099 : static void
8100 234 : emit_not_set_warning (gfc_symbol *sym)
8101 : {
8102 234 : if (warn_return_type > 0 && sym == sym->result)
8103 17 : gfc_warning (OPT_Wreturn_type,
8104 : "Return value of function %qs at %L not set",
8105 : sym->name, &sym->declared_at);
8106 234 : if (warn_return_type > 0)
8107 22 : suppress_warning (sym->backend_decl);
8108 234 : }
8109 :
8110 :
8111 : /* Generate code for a function. */
8112 :
8113 : void
8114 86049 : gfc_generate_function_code (gfc_namespace * ns)
8115 : {
8116 86049 : tree fndecl;
8117 86049 : tree old_context;
8118 86049 : tree decl;
8119 86049 : tree tmp;
8120 86049 : tree fpstate = NULL_TREE;
8121 86049 : stmtblock_t init, cleanup, outer_block;
8122 86049 : stmtblock_t body;
8123 86049 : gfc_wrapped_block try_block;
8124 86049 : tree recurcheckvar = NULL_TREE;
8125 86049 : gfc_symbol *sym;
8126 86049 : gfc_symbol *previous_procedure_symbol;
8127 86049 : int rank, ieee;
8128 86049 : bool is_recursive;
8129 :
8130 86049 : sym = ns->proc_name;
8131 86049 : previous_procedure_symbol = current_procedure_symbol;
8132 86049 : current_procedure_symbol = sym;
8133 :
8134 : /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get
8135 : lost or worse. */
8136 86049 : sym->tlink = sym;
8137 :
8138 : /* Create the declaration for functions with global scope. */
8139 86049 : if (!sym->backend_decl)
8140 35777 : gfc_create_function_decl (ns, false);
8141 :
8142 86049 : fndecl = sym->backend_decl;
8143 86049 : old_context = current_function_decl;
8144 :
8145 86049 : if (old_context)
8146 : {
8147 23240 : push_function_context ();
8148 23240 : saved_parent_function_decls = saved_function_decls;
8149 23240 : saved_function_decls = NULL_TREE;
8150 : }
8151 :
8152 86049 : trans_function_start (sym);
8153 86049 : gfc_current_locus = sym->declared_at;
8154 :
8155 86049 : gfc_init_block (&init);
8156 86049 : gfc_init_block (&cleanup);
8157 86049 : gfc_init_block (&outer_block);
8158 :
8159 86049 : if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER)
8160 : {
8161 : /* Copy length backend_decls to all entry point result
8162 : symbols. */
8163 74 : gfc_entry_list *el;
8164 74 : tree backend_decl;
8165 :
8166 74 : gfc_conv_const_charlen (ns->proc_name->ts.u.cl);
8167 74 : backend_decl = ns->proc_name->result->ts.u.cl->backend_decl;
8168 258 : for (el = ns->entries; el; el = el->next)
8169 184 : el->sym->result->ts.u.cl->backend_decl = backend_decl;
8170 : }
8171 :
8172 : /* Translate COMMON blocks. */
8173 86049 : gfc_trans_common (ns);
8174 :
8175 : /* Null the parent fake result declaration if this namespace is
8176 : a module function or an external procedures. */
8177 86049 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8178 59792 : || ns->parent == NULL)
8179 62809 : parent_fake_result_decl = NULL_TREE;
8180 :
8181 : /* For BIND(C):
8182 : - deallocate intent-out allocatable dummy arguments.
8183 : - Create GFC variable which will later be populated by convert_CFI_desc */
8184 86049 : if (sym->attr.is_bind_c)
8185 1901 : for (gfc_formal_arglist *formal = gfc_sym_get_dummy_args (sym);
8186 5921 : formal; formal = formal->next)
8187 : {
8188 4020 : gfc_symbol *fsym = formal->sym;
8189 4020 : if (!is_CFI_desc (fsym, NULL))
8190 2200 : continue;
8191 1820 : if (!fsym->attr.referenced)
8192 : {
8193 73 : gfc_conv_cfi_to_gfc (&init, &cleanup, fsym->backend_decl,
8194 : NULL_TREE, fsym);
8195 73 : continue;
8196 : }
8197 : /* Let's now create a local GFI descriptor. Afterwards:
8198 : desc is the local descriptor,
8199 : desc_p is a pointer to it
8200 : and stored in sym->backend_decl
8201 : GFC_DECL_SAVED_DESCRIPTOR (desc_p) contains the CFI descriptor
8202 : -> PARM_DECL and before sym->backend_decl.
8203 : For scalars, decl == decl_p is a pointer variable. */
8204 1747 : tree desc_p, desc;
8205 1747 : location_t loc = gfc_get_location (&sym->declared_at);
8206 1747 : if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->length)
8207 647 : fsym->ts.u.cl->backend_decl = gfc_create_var (gfc_array_index_type,
8208 : fsym->name);
8209 1100 : else if (fsym->ts.type == BT_CHARACTER && !fsym->ts.u.cl->backend_decl)
8210 : {
8211 157 : gfc_se se;
8212 157 : gfc_init_se (&se, NULL );
8213 157 : gfc_conv_expr (&se, fsym->ts.u.cl->length);
8214 157 : gfc_add_block_to_block (&init, &se.pre);
8215 157 : fsym->ts.u.cl->backend_decl = se.expr;
8216 157 : gcc_assert(se.post.head == NULL_TREE);
8217 : }
8218 : /* Nullify, otherwise gfc_sym_type will return the CFI type. */
8219 1747 : tree tmp = fsym->backend_decl;
8220 1747 : fsym->backend_decl = NULL;
8221 1747 : tree type = gfc_sym_type (fsym);
8222 1747 : gcc_assert (POINTER_TYPE_P (type));
8223 1747 : if (POINTER_TYPE_P (TREE_TYPE (type)))
8224 : /* For instance, allocatable scalars. */
8225 105 : type = TREE_TYPE (type);
8226 1747 : if (TREE_CODE (type) == REFERENCE_TYPE)
8227 1179 : type = build_pointer_type (TREE_TYPE (type));
8228 1747 : desc_p = build_decl (loc, VAR_DECL, get_identifier (fsym->name), type);
8229 1747 : if (!fsym->attr.dimension)
8230 : desc = desc_p;
8231 1583 : else if (!GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (TREE_TYPE (desc_p))))
8232 : {
8233 : /* Character(len=*) explicit-size/assumed-size array. */
8234 254 : desc = desc_p;
8235 254 : gfc_build_qualified_array (desc, fsym);
8236 : }
8237 : else
8238 : {
8239 1329 : tree size = size_in_bytes (TREE_TYPE (TREE_TYPE (desc_p)));
8240 1329 : tree call = builtin_decl_explicit (BUILT_IN_ALLOCA);
8241 1329 : call = build_call_expr_loc (input_location, call, 1, size);
8242 1329 : gfc_add_modify (&outer_block, desc_p,
8243 1329 : fold_convert (TREE_TYPE(desc_p), call));
8244 1329 : desc = build_fold_indirect_ref_loc (input_location, desc_p);
8245 : }
8246 1747 : pushdecl (desc_p);
8247 1747 : if (fsym->attr.optional)
8248 : {
8249 311 : gfc_allocate_lang_decl (desc_p);
8250 311 : GFC_DECL_OPTIONAL_ARGUMENT (desc_p) = 1;
8251 : }
8252 1747 : fsym->backend_decl = desc_p;
8253 1747 : gfc_conv_cfi_to_gfc (&init, &cleanup, tmp, desc, fsym);
8254 : }
8255 :
8256 : /* For OpenMP, ensure that declare variant in INTERFACE is is processed
8257 : especially as some late diagnostic is only done on tree level. */
8258 86049 : if (flag_openmp)
8259 8746 : gfc_traverse_ns (ns, gfc_handle_omp_declare_variant);
8260 :
8261 86049 : gfc_generate_contained_functions (ns);
8262 :
8263 86049 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8264 86049 : generate_local_vars (ns);
8265 :
8266 86049 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8267 403 : generate_coarray_init (ns);
8268 :
8269 : /* Keep the parent fake result declaration in module functions
8270 : or external procedures. */
8271 86049 : if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE)
8272 59792 : || ns->parent == NULL)
8273 62809 : current_fake_result_decl = parent_fake_result_decl;
8274 : else
8275 23240 : current_fake_result_decl = NULL_TREE;
8276 :
8277 172098 : is_recursive = sym->attr.recursive
8278 86049 : || (sym->attr.entry_master
8279 667 : && sym->ns->entries->sym->attr.recursive);
8280 86049 : if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION)
8281 1009 : && !is_recursive && !flag_recursive && !sym->attr.artificial)
8282 : {
8283 840 : char * msg;
8284 :
8285 840 : msg = xasprintf ("Recursive call to nonrecursive procedure '%s'",
8286 : sym->name);
8287 840 : recurcheckvar = gfc_create_var (logical_type_node, "is_recursive");
8288 840 : TREE_STATIC (recurcheckvar) = 1;
8289 840 : DECL_INITIAL (recurcheckvar) = logical_false_node;
8290 840 : gfc_add_expr_to_block (&init, recurcheckvar);
8291 840 : gfc_trans_runtime_check (true, false, recurcheckvar, &init,
8292 : &sym->declared_at, msg);
8293 840 : gfc_add_modify (&init, recurcheckvar, logical_true_node);
8294 840 : free (msg);
8295 : }
8296 :
8297 : /* Check if an IEEE module is used in the procedure. If so, save
8298 : the floating point state. */
8299 86049 : ieee = is_ieee_module_used (ns);
8300 86049 : if (ieee)
8301 437 : fpstate = gfc_save_fp_state (&init);
8302 :
8303 : /* Now generate the code for the body of this function. */
8304 86049 : gfc_init_block (&body);
8305 :
8306 86049 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8307 86049 : && sym->attr.subroutine)
8308 : {
8309 42 : tree alternate_return;
8310 42 : alternate_return = gfc_get_fake_result_decl (sym, 0);
8311 42 : gfc_add_modify (&body, alternate_return, integer_zero_node);
8312 : }
8313 :
8314 86049 : if (ns->entries)
8315 : {
8316 : /* Jump to the correct entry point. */
8317 667 : tmp = gfc_trans_entry_master_switch (ns->entries);
8318 667 : gfc_add_expr_to_block (&body, tmp);
8319 : }
8320 :
8321 : /* If bounds-checking is enabled, generate code to check passed in actual
8322 : arguments against the expected dummy argument attributes (e.g. string
8323 : lengths). */
8324 86049 : if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c)
8325 2907 : add_argument_checking (&body, sym);
8326 :
8327 86049 : finish_oacc_declare (ns, sym, false);
8328 :
8329 86049 : if (gfc_current_ns != ns)
8330 : {
8331 49497 : gfc_namespace *old_current_ns = gfc_current_ns;
8332 49497 : gfc_current_ns = ns;
8333 49497 : tmp = gfc_trans_code (ns->code);
8334 49497 : gfc_current_ns = old_current_ns;
8335 : }
8336 : else
8337 36552 : tmp = gfc_trans_code (ns->code);
8338 :
8339 86049 : gfc_add_expr_to_block (&body, tmp);
8340 :
8341 : /* This permits the return value to be correctly initialized, even when the
8342 : function result was not referenced. */
8343 86049 : if (sym->abr_modproc_decl
8344 260 : && IS_PDT (sym)
8345 7 : && !sym->attr.allocatable
8346 7 : && sym->result == sym
8347 86056 : && get_proc_result (sym) == NULL_TREE)
8348 : {
8349 1 : gfc_get_fake_result_decl (sym->result, 0);
8350 : /* TODO: move to the appropriate place in resolve.cc. */
8351 1 : emit_not_set_warning (sym);
8352 : }
8353 :
8354 86049 : if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node
8355 86049 : || (sym->result && sym->result != sym
8356 1201 : && sym->result->ts.type == BT_DERIVED
8357 167 : && sym->result->ts.u.derived->attr.alloc_comp))
8358 : {
8359 12427 : bool artificial_result_decl = false;
8360 12427 : tree result = get_proc_result (sym);
8361 12427 : gfc_symbol *rsym = sym == sym->result ? sym : sym->result;
8362 :
8363 : /* Make sure that a function returning an object with
8364 : alloc/pointer_components always has a result, where at least
8365 : the allocatable/pointer components are set to zero. */
8366 12427 : if (result == NULL_TREE && sym->attr.function
8367 233 : && ((sym->result->ts.type == BT_DERIVED
8368 28 : && (sym->attr.allocatable
8369 22 : || sym->attr.pointer
8370 20 : || sym->result->ts.u.derived->attr.alloc_comp
8371 20 : || sym->result->ts.u.derived->attr.pointer_comp))
8372 225 : || (sym->result->ts.type == BT_CLASS
8373 38 : && (CLASS_DATA (sym->result)->attr.allocatable
8374 11 : || CLASS_DATA (sym->result)->attr.class_pointer
8375 0 : || CLASS_DATA (sym->result)->attr.alloc_comp
8376 0 : || CLASS_DATA (sym->result)->attr.pointer_comp))))
8377 : {
8378 46 : artificial_result_decl = true;
8379 46 : result = gfc_get_fake_result_decl (sym->result, 0);
8380 : }
8381 :
8382 12427 : if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer)
8383 : {
8384 11810 : if (sym->attr.allocatable && sym->attr.dimension == 0
8385 101 : && sym->result == sym)
8386 75 : gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result),
8387 : null_pointer_node));
8388 11735 : else if (sym->ts.type == BT_CLASS
8389 735 : && CLASS_DATA (sym)->attr.allocatable
8390 503 : && CLASS_DATA (sym)->attr.dimension == 0
8391 316 : && sym->result == sym)
8392 : {
8393 135 : tmp = gfc_class_data_get (result);
8394 135 : gfc_add_modify (&init, tmp,
8395 135 : fold_convert (TREE_TYPE (tmp),
8396 : null_pointer_node));
8397 135 : gfc_reset_vptr (&init, nullptr, result,
8398 135 : sym->result->ts.u.derived);
8399 : }
8400 11600 : else if (sym->ts.type == BT_DERIVED
8401 1318 : && !sym->attr.allocatable)
8402 : {
8403 1293 : gfc_expr *init_exp;
8404 : /* Arrays are not initialized using the default initializer of
8405 : their elements. Therefore only check if a default
8406 : initializer is available when the result is scalar. */
8407 1293 : init_exp = rsym->as ? NULL
8408 1260 : : gfc_generate_initializer (&rsym->ts, true);
8409 1260 : if (init_exp)
8410 : {
8411 693 : tmp = gfc_trans_structure_assign (result, init_exp, 0);
8412 693 : gfc_free_expr (init_exp);
8413 693 : gfc_add_expr_to_block (&init, tmp);
8414 : }
8415 :
8416 1293 : if (rsym->ts.u.derived->attr.alloc_comp)
8417 : {
8418 487 : rank = rsym->as ? rsym->as->rank : 0;
8419 487 : tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result,
8420 : rank);
8421 487 : gfc_prepend_expr_to_block (&body, tmp);
8422 : }
8423 : }
8424 : }
8425 :
8426 12427 : if (result == NULL_TREE || artificial_result_decl)
8427 : /* TODO: move to the appropriate place in resolve.cc. */
8428 233 : emit_not_set_warning (sym);
8429 :
8430 233 : if (result != NULL_TREE)
8431 12240 : gfc_add_expr_to_block (&body, gfc_generate_return ());
8432 : }
8433 :
8434 : /* Reset recursion-check variable. */
8435 86049 : if (recurcheckvar != NULL_TREE)
8436 : {
8437 840 : gfc_add_modify (&cleanup, recurcheckvar, logical_false_node);
8438 840 : recurcheckvar = NULL;
8439 : }
8440 :
8441 : /* If IEEE modules are loaded, restore the floating-point state. */
8442 86049 : if (ieee)
8443 437 : gfc_restore_fp_state (&cleanup, fpstate);
8444 :
8445 : /* Finish the function body and add init and cleanup code. */
8446 86049 : tmp = gfc_finish_block (&body);
8447 : /* Add code to create and cleanup arrays. */
8448 86049 : gfc_start_wrapped_block (&try_block, tmp);
8449 86049 : gfc_trans_deferred_vars (sym, &try_block);
8450 86049 : gfc_add_init_cleanup (&try_block, gfc_finish_block (&init),
8451 : gfc_finish_block (&cleanup));
8452 :
8453 : /* Add all the decls we created during processing. */
8454 86049 : decl = nreverse (saved_function_decls);
8455 470657 : while (decl)
8456 : {
8457 298559 : tree next;
8458 :
8459 298559 : next = DECL_CHAIN (decl);
8460 298559 : DECL_CHAIN (decl) = NULL_TREE;
8461 298559 : pushdecl (decl);
8462 298559 : decl = next;
8463 : }
8464 86049 : saved_function_decls = NULL_TREE;
8465 :
8466 86049 : gfc_add_expr_to_block (&outer_block, gfc_finish_wrapped_block (&try_block));
8467 86049 : DECL_SAVED_TREE (fndecl) = gfc_finish_block (&outer_block);
8468 86049 : decl = getdecls ();
8469 :
8470 : /* Finish off this function and send it for code generation. */
8471 86049 : poplevel (1, 1);
8472 86049 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8473 :
8474 172098 : DECL_SAVED_TREE (fndecl)
8475 172098 : = fold_build3_loc (DECL_SOURCE_LOCATION (fndecl), BIND_EXPR, void_type_node,
8476 172098 : decl, DECL_SAVED_TREE (fndecl), DECL_INITIAL (fndecl));
8477 :
8478 : /* Output the GENERIC tree. */
8479 86049 : dump_function (TDI_original, fndecl);
8480 :
8481 : /* Store the end of the function, so that we get good line number
8482 : info for the epilogue. */
8483 86049 : cfun->function_end_locus = input_location;
8484 :
8485 : /* We're leaving the context of this function, so zap cfun.
8486 : It's still in DECL_STRUCT_FUNCTION, and we'll restore it in
8487 : tree_rest_of_compilation. */
8488 86049 : set_cfun (NULL);
8489 :
8490 86049 : if (old_context)
8491 : {
8492 23240 : pop_function_context ();
8493 23240 : saved_function_decls = saved_parent_function_decls;
8494 : }
8495 86049 : current_function_decl = old_context;
8496 :
8497 86049 : if (decl_function_context (fndecl))
8498 : {
8499 : /* Register this function with cgraph just far enough to get it
8500 : added to our parent's nested function list.
8501 : If there are static coarrays in this function, the nested _caf_init
8502 : function has already called cgraph_create_node, which also created
8503 : the cgraph node for this function. */
8504 23240 : if (!has_coarray_vars_or_accessors || flag_coarray != GFC_FCOARRAY_LIB)
8505 23036 : (void) cgraph_node::get_create (fndecl);
8506 : }
8507 : else
8508 62809 : cgraph_node::finalize_function (fndecl, true);
8509 :
8510 86049 : gfc_trans_use_stmts (ns);
8511 86049 : gfc_traverse_ns (ns, gfc_emit_parameter_debug_info);
8512 :
8513 86049 : if (sym->attr.is_main_program)
8514 26465 : create_main_function (fndecl);
8515 :
8516 86049 : current_procedure_symbol = previous_procedure_symbol;
8517 86049 : }
8518 :
8519 :
8520 : void
8521 31846 : gfc_generate_constructors (void)
8522 : {
8523 31846 : gcc_assert (gfc_static_ctors == NULL_TREE);
8524 : #if 0
8525 : tree fnname;
8526 : tree type;
8527 : tree fndecl;
8528 : tree decl;
8529 : tree tmp;
8530 :
8531 : if (gfc_static_ctors == NULL_TREE)
8532 : return;
8533 :
8534 : fnname = get_file_function_name ("I");
8535 : type = build_function_type_list (void_type_node, NULL_TREE);
8536 :
8537 : fndecl = build_decl (input_location,
8538 : FUNCTION_DECL, fnname, type);
8539 : TREE_PUBLIC (fndecl) = 1;
8540 :
8541 : decl = build_decl (input_location,
8542 : RESULT_DECL, NULL_TREE, void_type_node);
8543 : DECL_ARTIFICIAL (decl) = 1;
8544 : DECL_IGNORED_P (decl) = 1;
8545 : DECL_CONTEXT (decl) = fndecl;
8546 : DECL_RESULT (fndecl) = decl;
8547 :
8548 : pushdecl (fndecl);
8549 :
8550 : current_function_decl = fndecl;
8551 :
8552 : rest_of_decl_compilation (fndecl, 1, 0);
8553 :
8554 : make_decl_rtl (fndecl);
8555 :
8556 : allocate_struct_function (fndecl, false);
8557 :
8558 : pushlevel ();
8559 :
8560 : for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors))
8561 : {
8562 : tmp = build_call_expr_loc (input_location,
8563 : TREE_VALUE (gfc_static_ctors), 0);
8564 : DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp);
8565 : }
8566 :
8567 : decl = getdecls ();
8568 : poplevel (1, 1);
8569 :
8570 : BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl;
8571 : DECL_SAVED_TREE (fndecl)
8572 : = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl),
8573 : DECL_INITIAL (fndecl));
8574 :
8575 : free_after_parsing (cfun);
8576 : free_after_compilation (cfun);
8577 :
8578 : tree_rest_of_compilation (fndecl);
8579 :
8580 : current_function_decl = NULL_TREE;
8581 : #endif
8582 31846 : }
8583 :
8584 :
8585 : /* Helper function for checking of variables declared in a BLOCK DATA program
8586 : unit. */
8587 :
8588 : static void
8589 301 : check_block_data_decls (gfc_symbol * sym)
8590 : {
8591 301 : if (warn_unused_variable
8592 13 : && sym->attr.flavor == FL_VARIABLE
8593 7 : && !sym->attr.in_common
8594 3 : && !sym->attr.artificial)
8595 : {
8596 2 : gfc_warning (OPT_Wunused_variable,
8597 : "Symbol %qs at %L is declared in a BLOCK DATA "
8598 : "program unit but is not in a COMMON block",
8599 : sym->name, &sym->declared_at);
8600 : }
8601 301 : }
8602 :
8603 :
8604 : /* Translates a BLOCK DATA program unit. This means emitting the
8605 : commons contained therein plus their initializations. We also emit
8606 : a globally visible symbol to make sure that each BLOCK DATA program
8607 : unit remains unique. */
8608 :
8609 : void
8610 72 : gfc_generate_block_data (gfc_namespace * ns)
8611 : {
8612 72 : tree decl;
8613 72 : tree id;
8614 :
8615 : /* Tell the backend the source location of the block data. */
8616 72 : if (ns->proc_name)
8617 29 : input_location = gfc_get_location (&ns->proc_name->declared_at);
8618 : else
8619 43 : input_location = gfc_get_location (&gfc_current_locus);
8620 :
8621 : /* Process the DATA statements. */
8622 72 : gfc_trans_common (ns);
8623 :
8624 : /* Check for variables declared in BLOCK DATA but not used in COMMON. */
8625 72 : gfc_traverse_ns (ns, check_block_data_decls);
8626 :
8627 : /* Create a global symbol with the mane of the block data. This is to
8628 : generate linker errors if the same name is used twice. It is never
8629 : really used. */
8630 72 : if (ns->proc_name)
8631 29 : id = gfc_sym_mangled_function_id (ns->proc_name);
8632 : else
8633 43 : id = get_identifier ("__BLOCK_DATA__");
8634 :
8635 72 : decl = build_decl (input_location,
8636 : VAR_DECL, id, gfc_array_index_type);
8637 72 : TREE_PUBLIC (decl) = 1;
8638 72 : TREE_STATIC (decl) = 1;
8639 72 : DECL_IGNORED_P (decl) = 1;
8640 :
8641 72 : pushdecl (decl);
8642 72 : rest_of_decl_compilation (decl, 1, 0);
8643 72 : }
8644 :
8645 : void
8646 14271 : gfc_start_saved_local_decls ()
8647 : {
8648 14271 : gcc_checking_assert (current_function_decl != NULL_TREE);
8649 14271 : saved_local_decls = NULL_TREE;
8650 14271 : }
8651 :
8652 : void
8653 14271 : gfc_stop_saved_local_decls ()
8654 : {
8655 14271 : tree decl = nreverse (saved_local_decls);
8656 41778 : while (decl)
8657 : {
8658 13236 : tree next;
8659 :
8660 13236 : next = DECL_CHAIN (decl);
8661 13236 : DECL_CHAIN (decl) = NULL_TREE;
8662 13236 : pushdecl (decl);
8663 13236 : decl = next;
8664 : }
8665 14271 : saved_local_decls = NULL_TREE;
8666 14271 : }
8667 :
8668 : /* Process the local variables of a BLOCK construct. */
8669 :
8670 : void
8671 14223 : gfc_process_block_locals (gfc_namespace* ns)
8672 : {
8673 14223 : gfc_start_saved_local_decls ();
8674 14223 : has_coarray_vars_or_accessors = caf_accessor_head != NULL;
8675 :
8676 14223 : generate_local_vars (ns);
8677 :
8678 14223 : if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars_or_accessors)
8679 41 : generate_coarray_init (ns);
8680 14223 : gfc_stop_saved_local_decls ();
8681 14223 : }
8682 :
8683 :
8684 : #include "gt-fortran-trans-decl.h"
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