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6de9cd9a | 1 | /* Backend function setup |
a5544970 | 2 | Copyright (C) 2002-2019 Free Software Foundation, Inc. |
6de9cd9a DN |
3 | Contributed by Paul Brook |
4 | ||
9fc4d79b | 5 | This file is part of GCC. |
6de9cd9a | 6 | |
9fc4d79b TS |
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 | |
d234d788 | 9 | Software Foundation; either version 3, or (at your option) any later |
9fc4d79b | 10 | version. |
6de9cd9a | 11 | |
9fc4d79b TS |
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. | |
6de9cd9a DN |
16 | |
17 | You should have received a copy of the GNU General Public License | |
d234d788 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
6de9cd9a DN |
20 | |
21 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
22 | ||
23 | #include "config.h" | |
24 | #include "system.h" | |
25 | #include "coretypes.h" | |
2adfab87 AM |
26 | #include "target.h" |
27 | #include "function.h" | |
28 | #include "tree.h" | |
8e54f6d3 | 29 | #include "gfortran.h" |
2adfab87 AM |
30 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
31 | #include "trans.h" | |
32 | #include "stringpool.h" | |
33 | #include "cgraph.h" | |
40e23961 | 34 | #include "fold-const.h" |
d8a2d370 DN |
35 | #include "stor-layout.h" |
36 | #include "varasm.h" | |
37 | #include "attribs.h" | |
c24e924f | 38 | #include "dumpfile.h" |
c829d016 | 39 | #include "toplev.h" /* For announce_function. */ |
a64f5186 | 40 | #include "debug.h" |
b7e75771 | 41 | #include "constructor.h" |
6de9cd9a DN |
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" | |
db941d7e | 47 | #include "gomp-constants.h" |
7a27d38f | 48 | #include "gimplify.h" |
68034b1b | 49 | #include "omp-general.h" |
6de9cd9a DN |
50 | |
51 | #define MAX_LABEL_VALUE 99999 | |
52 | ||
53 | ||
54 | /* Holds the result of the function if no result variable specified. */ | |
55 | ||
56 | static GTY(()) tree current_fake_result_decl; | |
5f20c93a | 57 | static GTY(()) tree parent_fake_result_decl; |
6de9cd9a | 58 | |
6de9cd9a DN |
59 | |
60 | /* Holds the variable DECLs for the current function. */ | |
61 | ||
417ab240 JJ |
62 | static GTY(()) tree saved_function_decls; |
63 | static GTY(()) tree saved_parent_function_decls; | |
6de9cd9a | 64 | |
9abe5e56 DK |
65 | /* Holds the variable DECLs that are locals. */ |
66 | ||
67 | static GTY(()) tree saved_local_decls; | |
68 | ||
6de9cd9a DN |
69 | /* The namespace of the module we're currently generating. Only used while |
70 | outputting decls for module variables. Do not rely on this being set. */ | |
71 | ||
72 | static gfc_namespace *module_namespace; | |
73 | ||
d74d8807 DK |
74 | /* The currently processed procedure symbol. */ |
75 | static gfc_symbol* current_procedure_symbol = NULL; | |
76 | ||
de1184c0 TB |
77 | /* The currently processed module. */ |
78 | static struct module_htab_entry *cur_module; | |
6de9cd9a | 79 | |
b8ff4e88 TB |
80 | /* With -fcoarray=lib: For generating the registering call |
81 | of static coarrays. */ | |
82 | static bool has_coarray_vars; | |
83 | static stmtblock_t caf_init_block; | |
84 | ||
85 | ||
6de9cd9a DN |
86 | /* List of static constructor functions. */ |
87 | ||
88 | tree gfc_static_ctors; | |
89 | ||
90 | ||
8b198102 FXC |
91 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
92 | static int seen_ieee_symbol; | |
93 | ||
6de9cd9a DN |
94 | /* Function declarations for builtin library functions. */ |
95 | ||
6de9cd9a DN |
96 | tree gfor_fndecl_pause_numeric; |
97 | tree gfor_fndecl_pause_string; | |
98 | tree gfor_fndecl_stop_numeric; | |
99 | tree gfor_fndecl_stop_string; | |
6d1b0f92 | 100 | tree gfor_fndecl_error_stop_numeric; |
d0a4a61c | 101 | tree gfor_fndecl_error_stop_string; |
6de9cd9a | 102 | tree gfor_fndecl_runtime_error; |
f96d606f | 103 | tree gfor_fndecl_runtime_error_at; |
0d52899f | 104 | tree gfor_fndecl_runtime_warning_at; |
d74a8b05 | 105 | tree gfor_fndecl_os_error_at; |
f96d606f | 106 | tree gfor_fndecl_generate_error; |
092231a8 | 107 | tree gfor_fndecl_set_args; |
944b8b35 | 108 | tree gfor_fndecl_set_fpe; |
68d2e027 | 109 | tree gfor_fndecl_set_options; |
eaa90d25 | 110 | tree gfor_fndecl_set_convert; |
d67ab5ee | 111 | tree gfor_fndecl_set_record_marker; |
07b3bbf2 | 112 | tree gfor_fndecl_set_max_subrecord_length; |
35059811 FXC |
113 | tree gfor_fndecl_ctime; |
114 | tree gfor_fndecl_fdate; | |
25fc05eb | 115 | tree gfor_fndecl_ttynam; |
6de9cd9a DN |
116 | tree gfor_fndecl_in_pack; |
117 | tree gfor_fndecl_in_unpack; | |
bbf18dc5 PT |
118 | tree gfor_fndecl_cfi_to_gfc; |
119 | tree gfor_fndecl_gfc_to_cfi; | |
6de9cd9a | 120 | tree gfor_fndecl_associated; |
a416c4c7 FXC |
121 | tree gfor_fndecl_system_clock4; |
122 | tree gfor_fndecl_system_clock8; | |
8b198102 FXC |
123 | tree gfor_fndecl_ieee_procedure_entry; |
124 | tree gfor_fndecl_ieee_procedure_exit; | |
6de9cd9a | 125 | |
60386f50 TB |
126 | /* Coarray run-time library function decls. */ |
127 | tree gfor_fndecl_caf_init; | |
128 | tree gfor_fndecl_caf_finalize; | |
a8a5f4a9 TB |
129 | tree gfor_fndecl_caf_this_image; |
130 | tree gfor_fndecl_caf_num_images; | |
b8ff4e88 | 131 | tree gfor_fndecl_caf_register; |
5d81ddd0 | 132 | tree gfor_fndecl_caf_deregister; |
b5116268 TB |
133 | tree gfor_fndecl_caf_get; |
134 | tree gfor_fndecl_caf_send; | |
135 | tree gfor_fndecl_caf_sendget; | |
3c9f5092 AV |
136 | tree gfor_fndecl_caf_get_by_ref; |
137 | tree gfor_fndecl_caf_send_by_ref; | |
138 | tree gfor_fndecl_caf_sendget_by_ref; | |
60386f50 | 139 | tree gfor_fndecl_caf_sync_all; |
9315dff0 | 140 | tree gfor_fndecl_caf_sync_memory; |
60386f50 | 141 | tree gfor_fndecl_caf_sync_images; |
0daa7ed9 AF |
142 | tree gfor_fndecl_caf_stop_str; |
143 | tree gfor_fndecl_caf_stop_numeric; | |
60386f50 TB |
144 | tree gfor_fndecl_caf_error_stop; |
145 | tree gfor_fndecl_caf_error_stop_str; | |
42a8246d TB |
146 | tree gfor_fndecl_caf_atomic_def; |
147 | tree gfor_fndecl_caf_atomic_ref; | |
148 | tree gfor_fndecl_caf_atomic_cas; | |
149 | tree gfor_fndecl_caf_atomic_op; | |
bc0229f9 TB |
150 | tree gfor_fndecl_caf_lock; |
151 | tree gfor_fndecl_caf_unlock; | |
5df445a2 TB |
152 | tree gfor_fndecl_caf_event_post; |
153 | tree gfor_fndecl_caf_event_wait; | |
154 | tree gfor_fndecl_caf_event_query; | |
ef78bc3c AV |
155 | tree gfor_fndecl_caf_fail_image; |
156 | tree gfor_fndecl_caf_failed_images; | |
157 | tree gfor_fndecl_caf_image_status; | |
158 | tree gfor_fndecl_caf_stopped_images; | |
f8862a1b DR |
159 | tree gfor_fndecl_caf_form_team; |
160 | tree gfor_fndecl_caf_change_team; | |
161 | tree gfor_fndecl_caf_end_team; | |
162 | tree gfor_fndecl_caf_sync_team; | |
163 | tree gfor_fndecl_caf_get_team; | |
164 | tree gfor_fndecl_caf_team_number; | |
a16ee379 | 165 | tree gfor_fndecl_co_broadcast; |
d62cf3df TB |
166 | tree gfor_fndecl_co_max; |
167 | tree gfor_fndecl_co_min; | |
229c5919 | 168 | tree gfor_fndecl_co_reduce; |
d62cf3df | 169 | tree gfor_fndecl_co_sum; |
ba85c8c3 | 170 | tree gfor_fndecl_caf_is_present; |
60386f50 | 171 | |
60386f50 | 172 | |
6de9cd9a DN |
173 | /* Math functions. Many other math functions are handled in |
174 | trans-intrinsic.c. */ | |
175 | ||
644cb69f | 176 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
6de9cd9a DN |
177 | tree gfor_fndecl_math_ishftc4; |
178 | tree gfor_fndecl_math_ishftc8; | |
644cb69f | 179 | tree gfor_fndecl_math_ishftc16; |
6de9cd9a DN |
180 | |
181 | ||
182 | /* String functions. */ | |
183 | ||
6de9cd9a DN |
184 | tree gfor_fndecl_compare_string; |
185 | tree gfor_fndecl_concat_string; | |
186 | tree gfor_fndecl_string_len_trim; | |
187 | tree gfor_fndecl_string_index; | |
188 | tree gfor_fndecl_string_scan; | |
189 | tree gfor_fndecl_string_verify; | |
190 | tree gfor_fndecl_string_trim; | |
2263c775 | 191 | tree gfor_fndecl_string_minmax; |
6de9cd9a DN |
192 | tree gfor_fndecl_adjustl; |
193 | tree gfor_fndecl_adjustr; | |
d393bbd7 | 194 | tree gfor_fndecl_select_string; |
374929b2 FXC |
195 | tree gfor_fndecl_compare_string_char4; |
196 | tree gfor_fndecl_concat_string_char4; | |
197 | tree gfor_fndecl_string_len_trim_char4; | |
198 | tree gfor_fndecl_string_index_char4; | |
199 | tree gfor_fndecl_string_scan_char4; | |
200 | tree gfor_fndecl_string_verify_char4; | |
201 | tree gfor_fndecl_string_trim_char4; | |
202 | tree gfor_fndecl_string_minmax_char4; | |
203 | tree gfor_fndecl_adjustl_char4; | |
204 | tree gfor_fndecl_adjustr_char4; | |
d393bbd7 FXC |
205 | tree gfor_fndecl_select_string_char4; |
206 | ||
207 | ||
208 | /* Conversion between character kinds. */ | |
209 | tree gfor_fndecl_convert_char1_to_char4; | |
210 | tree gfor_fndecl_convert_char4_to_char1; | |
6de9cd9a DN |
211 | |
212 | ||
213 | /* Other misc. runtime library functions. */ | |
6de9cd9a DN |
214 | tree gfor_fndecl_size0; |
215 | tree gfor_fndecl_size1; | |
b41b2534 | 216 | tree gfor_fndecl_iargc; |
17164de4 SK |
217 | tree gfor_fndecl_kill; |
218 | tree gfor_fndecl_kill_sub; | |
419af57c | 219 | tree gfor_fndecl_is_contiguous0; |
17164de4 | 220 | |
6de9cd9a | 221 | |
a39fafac FXC |
222 | /* Intrinsic functions implemented in Fortran. */ |
223 | tree gfor_fndecl_sc_kind; | |
6de9cd9a DN |
224 | tree gfor_fndecl_si_kind; |
225 | tree gfor_fndecl_sr_kind; | |
226 | ||
5a0aad31 FXC |
227 | /* BLAS gemm functions. */ |
228 | tree gfor_fndecl_sgemm; | |
229 | tree gfor_fndecl_dgemm; | |
230 | tree gfor_fndecl_cgemm; | |
231 | tree gfor_fndecl_zgemm; | |
232 | ||
ddd3e26e SK |
233 | /* RANDOM_INIT function. */ |
234 | tree gfor_fndecl_random_init; | |
6de9cd9a DN |
235 | |
236 | static void | |
237 | gfc_add_decl_to_parent_function (tree decl) | |
238 | { | |
6e45f57b | 239 | gcc_assert (decl); |
6de9cd9a DN |
240 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
241 | DECL_NONLOCAL (decl) = 1; | |
910ad8de | 242 | DECL_CHAIN (decl) = saved_parent_function_decls; |
6de9cd9a DN |
243 | saved_parent_function_decls = decl; |
244 | } | |
245 | ||
246 | void | |
247 | gfc_add_decl_to_function (tree decl) | |
248 | { | |
6e45f57b | 249 | gcc_assert (decl); |
6de9cd9a DN |
250 | TREE_USED (decl) = 1; |
251 | DECL_CONTEXT (decl) = current_function_decl; | |
910ad8de | 252 | DECL_CHAIN (decl) = saved_function_decls; |
6de9cd9a DN |
253 | saved_function_decls = decl; |
254 | } | |
255 | ||
9abe5e56 DK |
256 | static void |
257 | add_decl_as_local (tree decl) | |
258 | { | |
259 | gcc_assert (decl); | |
260 | TREE_USED (decl) = 1; | |
261 | DECL_CONTEXT (decl) = current_function_decl; | |
910ad8de | 262 | DECL_CHAIN (decl) = saved_local_decls; |
9abe5e56 DK |
263 | saved_local_decls = decl; |
264 | } | |
265 | ||
6de9cd9a | 266 | |
c006df4e SB |
267 | /* Build a backend label declaration. Set TREE_USED for named labels. |
268 | The context of the label is always the current_function_decl. All | |
269 | labels are marked artificial. */ | |
6de9cd9a DN |
270 | |
271 | tree | |
272 | gfc_build_label_decl (tree label_id) | |
273 | { | |
274 | /* 2^32 temporaries should be enough. */ | |
275 | static unsigned int tmp_num = 1; | |
276 | tree label_decl; | |
277 | char *label_name; | |
278 | ||
279 | if (label_id == NULL_TREE) | |
280 | { | |
281 | /* Build an internal label name. */ | |
282 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
283 | label_id = get_identifier (label_name); | |
284 | } | |
285 | else | |
286 | label_name = NULL; | |
287 | ||
288 | /* Build the LABEL_DECL node. Labels have no type. */ | |
c2255bc4 AH |
289 | label_decl = build_decl (input_location, |
290 | LABEL_DECL, label_id, void_type_node); | |
6de9cd9a | 291 | DECL_CONTEXT (label_decl) = current_function_decl; |
899ca90e | 292 | SET_DECL_MODE (label_decl, VOIDmode); |
6de9cd9a | 293 | |
c006df4e SB |
294 | /* We always define the label as used, even if the original source |
295 | file never references the label. We don't want all kinds of | |
296 | spurious warnings for old-style Fortran code with too many | |
297 | labels. */ | |
298 | TREE_USED (label_decl) = 1; | |
6de9cd9a | 299 | |
c006df4e | 300 | DECL_ARTIFICIAL (label_decl) = 1; |
6de9cd9a DN |
301 | return label_decl; |
302 | } | |
303 | ||
304 | ||
c8cc8542 PB |
305 | /* Set the backend source location of a decl. */ |
306 | ||
307 | void | |
308 | gfc_set_decl_location (tree decl, locus * loc) | |
309 | { | |
c8cc8542 | 310 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
c8cc8542 PB |
311 | } |
312 | ||
313 | ||
6de9cd9a DN |
314 | /* Return the backend label declaration for a given label structure, |
315 | or create it if it doesn't exist yet. */ | |
316 | ||
317 | tree | |
318 | gfc_get_label_decl (gfc_st_label * lp) | |
319 | { | |
6de9cd9a DN |
320 | if (lp->backend_decl) |
321 | return lp->backend_decl; | |
322 | else | |
323 | { | |
324 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
325 | tree label_decl; | |
326 | ||
327 | /* Validate the label declaration from the front end. */ | |
6e45f57b | 328 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
6de9cd9a DN |
329 | |
330 | /* Build a mangled name for the label. */ | |
331 | sprintf (label_name, "__label_%.6d", lp->value); | |
332 | ||
333 | /* Build the LABEL_DECL node. */ | |
334 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
335 | ||
336 | /* Tell the debugger where the label came from. */ | |
f8d0aee5 | 337 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
c8cc8542 | 338 | gfc_set_decl_location (label_decl, &lp->where); |
6de9cd9a DN |
339 | else |
340 | DECL_ARTIFICIAL (label_decl) = 1; | |
341 | ||
342 | /* Store the label in the label list and return the LABEL_DECL. */ | |
343 | lp->backend_decl = label_decl; | |
344 | return label_decl; | |
345 | } | |
346 | } | |
347 | ||
5c6aa9a8 | 348 | /* Return the name of an identifier. */ |
6de9cd9a | 349 | |
5c6aa9a8 TK |
350 | static const char * |
351 | sym_identifier (gfc_symbol *sym) | |
6de9cd9a | 352 | { |
a7ad6c2d | 353 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
5c6aa9a8 | 354 | return "MAIN__"; |
a7ad6c2d | 355 | else |
5c6aa9a8 | 356 | return sym->name; |
6de9cd9a DN |
357 | } |
358 | ||
5c6aa9a8 | 359 | /* Convert a gfc_symbol to an identifier of the same name. */ |
6de9cd9a DN |
360 | |
361 | static tree | |
5c6aa9a8 | 362 | gfc_sym_identifier (gfc_symbol * sym) |
6de9cd9a | 363 | { |
5c6aa9a8 TK |
364 | return get_identifier (sym_identifier (sym)); |
365 | } | |
366 | ||
367 | /* Construct mangled name from symbol name. */ | |
6de9cd9a | 368 | |
5c6aa9a8 TK |
369 | static const char * |
370 | mangled_identifier (gfc_symbol *sym) | |
371 | { | |
372 | static char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
a8b3b0b6 CR |
373 | /* Prevent the mangling of identifiers that have an assigned |
374 | binding label (mainly those that are bind(c)). */ | |
5c6aa9a8 | 375 | |
62603fae | 376 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
5c6aa9a8 | 377 | return sym->binding_label; |
8b704316 | 378 | |
345bd7eb PT |
379 | if (!sym->fn_result_spec) |
380 | { | |
381 | if (sym->module == NULL) | |
5c6aa9a8 | 382 | return sym_identifier (sym); |
345bd7eb PT |
383 | else |
384 | { | |
385 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); | |
5c6aa9a8 | 386 | return name; |
345bd7eb PT |
387 | } |
388 | } | |
6de9cd9a DN |
389 | else |
390 | { | |
345bd7eb PT |
391 | /* This is an entity that is actually local to a module procedure |
392 | that appears in the result specification expression. Since | |
393 | sym->module will be a zero length string, we use ns->proc_name | |
394 | instead. */ | |
395 | if (sym->ns->proc_name && sym->ns->proc_name->module) | |
396 | { | |
397 | snprintf (name, sizeof name, "__%s_MOD__%s_PROC_%s", | |
398 | sym->ns->proc_name->module, | |
399 | sym->ns->proc_name->name, | |
400 | sym->name); | |
5c6aa9a8 | 401 | return name; |
345bd7eb PT |
402 | } |
403 | else | |
404 | { | |
405 | snprintf (name, sizeof name, "__%s_PROC_%s", | |
406 | sym->ns->proc_name->name, sym->name); | |
5c6aa9a8 | 407 | return name; |
345bd7eb | 408 | } |
6de9cd9a DN |
409 | } |
410 | } | |
411 | ||
5c6aa9a8 TK |
412 | /* Get mangled identifier, adding the symbol to the global table if |
413 | it is not yet already there. */ | |
414 | ||
415 | static tree | |
416 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
417 | { | |
418 | tree result; | |
419 | gfc_gsymbol *gsym; | |
420 | const char *name; | |
421 | ||
422 | name = mangled_identifier (sym); | |
423 | result = get_identifier (name); | |
424 | ||
425 | gsym = gfc_find_gsymbol (gfc_gsym_root, name); | |
426 | if (gsym == NULL) | |
427 | { | |
428 | gsym = gfc_get_gsymbol (name, false); | |
429 | gsym->ns = sym->ns; | |
430 | gsym->sym_name = sym->name; | |
431 | } | |
432 | ||
433 | return result; | |
434 | } | |
6de9cd9a DN |
435 | |
436 | /* Construct mangled function name from symbol name. */ | |
437 | ||
438 | static tree | |
439 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
440 | { | |
441 | int has_underscore; | |
442 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
443 | ||
a8b3b0b6 CR |
444 | /* It may be possible to simply use the binding label if it's |
445 | provided, and remove the other checks. Then we could use it | |
446 | for other things if we wished. */ | |
447 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
62603fae | 448 | sym->binding_label) |
a8b3b0b6 CR |
449 | /* use the binding label rather than the mangled name */ |
450 | return get_identifier (sym->binding_label); | |
451 | ||
4668d6f9 | 452 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
c89686a8 PT |
453 | || (sym->module != NULL && (sym->attr.external |
454 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4668d6f9 | 455 | && !sym->attr.module_procedure) |
6de9cd9a | 456 | { |
ecf24057 FXC |
457 | /* Main program is mangled into MAIN__. */ |
458 | if (sym->attr.is_main_program) | |
459 | return get_identifier ("MAIN__"); | |
460 | ||
461 | /* Intrinsic procedures are never mangled. */ | |
462 | if (sym->attr.proc == PROC_INTRINSIC) | |
6de9cd9a DN |
463 | return get_identifier (sym->name); |
464 | ||
c61819ff | 465 | if (flag_underscoring) |
6de9cd9a DN |
466 | { |
467 | has_underscore = strchr (sym->name, '_') != 0; | |
203c7ebf | 468 | if (flag_second_underscore && has_underscore) |
6de9cd9a DN |
469 | snprintf (name, sizeof name, "%s__", sym->name); |
470 | else | |
471 | snprintf (name, sizeof name, "%s_", sym->name); | |
472 | return get_identifier (name); | |
473 | } | |
474 | else | |
475 | return get_identifier (sym->name); | |
476 | } | |
477 | else | |
478 | { | |
9998ef84 | 479 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
6de9cd9a DN |
480 | return get_identifier (name); |
481 | } | |
482 | } | |
483 | ||
484 | ||
43ce5e52 FXC |
485 | void |
486 | gfc_set_decl_assembler_name (tree decl, tree name) | |
487 | { | |
488 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
489 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
490 | } | |
491 | ||
492 | ||
bae88af6 TS |
493 | /* Returns true if a variable of specified size should go on the stack. */ |
494 | ||
495 | int | |
496 | gfc_can_put_var_on_stack (tree size) | |
497 | { | |
498 | unsigned HOST_WIDE_INT low; | |
499 | ||
500 | if (!INTEGER_CST_P (size)) | |
501 | return 0; | |
502 | ||
203c7ebf | 503 | if (flag_max_stack_var_size < 0) |
bae88af6 TS |
504 | return 1; |
505 | ||
807e902e | 506 | if (!tree_fits_uhwi_p (size)) |
bae88af6 TS |
507 | return 0; |
508 | ||
509 | low = TREE_INT_CST_LOW (size); | |
203c7ebf | 510 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
bae88af6 TS |
511 | return 0; |
512 | ||
513 | /* TODO: Set a per-function stack size limit. */ | |
514 | ||
515 | return 1; | |
516 | } | |
517 | ||
518 | ||
b122dc6a JJ |
519 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
520 | an expression involving its corresponding pointer. There are | |
521 | 2 cases; one for variable size arrays, and one for everything else, | |
522 | because variable-sized arrays require one fewer level of | |
523 | indirection. */ | |
524 | ||
525 | static void | |
526 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
527 | { | |
528 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
529 | tree value; | |
530 | ||
531 | /* Parameters need to be dereferenced. */ | |
8b704316 | 532 | if (sym->cp_pointer->attr.dummy) |
db3927fb AH |
533 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
534 | ptr_decl); | |
b122dc6a JJ |
535 | |
536 | /* Check to see if we're dealing with a variable-sized array. */ | |
537 | if (sym->attr.dimension | |
8b704316 PT |
538 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
539 | { | |
831d7813 | 540 | /* These decls will be dereferenced later, so we don't dereference |
b122dc6a JJ |
541 | them here. */ |
542 | value = convert (TREE_TYPE (decl), ptr_decl); | |
543 | } | |
544 | else | |
545 | { | |
546 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
547 | ptr_decl); | |
db3927fb AH |
548 | value = build_fold_indirect_ref_loc (input_location, |
549 | ptr_decl); | |
b122dc6a JJ |
550 | } |
551 | ||
552 | SET_DECL_VALUE_EXPR (decl, value); | |
553 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
6c7a4dfd | 554 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b122dc6a JJ |
555 | } |
556 | ||
557 | ||
faf28b3a | 558 | /* Finish processing of a declaration without an initial value. */ |
6de9cd9a DN |
559 | |
560 | static void | |
faf28b3a | 561 | gfc_finish_decl (tree decl) |
6de9cd9a | 562 | { |
faf28b3a TS |
563 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
564 | || DECL_INITIAL (decl) == NULL_TREE); | |
6de9cd9a | 565 | |
d168c883 | 566 | if (!VAR_P (decl)) |
faf28b3a | 567 | return; |
6de9cd9a | 568 | |
faf28b3a TS |
569 | if (DECL_SIZE (decl) == NULL_TREE |
570 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
571 | layout_decl (decl, 0); | |
572 | ||
573 | /* A few consistency checks. */ | |
574 | /* A static variable with an incomplete type is an error if it is | |
575 | initialized. Also if it is not file scope. Otherwise, let it | |
576 | through, but if it is not `extern' then it may cause an error | |
577 | message later. */ | |
578 | /* An automatic variable with an incomplete type is an error. */ | |
579 | ||
580 | /* We should know the storage size. */ | |
581 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
8b704316 | 582 | || (TREE_STATIC (decl) |
faf28b3a TS |
583 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
584 | : DECL_EXTERNAL (decl))); | |
585 | ||
586 | /* The storage size should be constant. */ | |
587 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
588 | || !DECL_SIZE (decl) | |
589 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
6de9cd9a DN |
590 | } |
591 | ||
592 | ||
92d28cbb JJ |
593 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
594 | ||
595 | void | |
596 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
597 | { | |
598 | if (!attr->dimension && !attr->codimension) | |
599 | { | |
600 | /* Handle scalar allocatable variables. */ | |
601 | if (attr->allocatable) | |
602 | { | |
603 | gfc_allocate_lang_decl (decl); | |
604 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
605 | } | |
606 | /* Handle scalar pointer variables. */ | |
607 | if (attr->pointer) | |
608 | { | |
609 | gfc_allocate_lang_decl (decl); | |
610 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
611 | } | |
612 | } | |
613 | } | |
614 | ||
615 | ||
6de9cd9a DN |
616 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
617 | ||
618 | static void | |
619 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
620 | { | |
7b901ac4 | 621 | tree new_type; |
83d890b9 | 622 | |
b122dc6a | 623 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
83d890b9 | 624 | if (sym->attr.cray_pointee) |
b122dc6a | 625 | gfc_finish_cray_pointee (decl, sym); |
83d890b9 | 626 | |
63a1dd10 AV |
627 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
628 | This is the equivalent of the TARGET variables. | |
629 | We also need to set this if the variable is passed by reference in a | |
630 | CALL statement. */ | |
6de9cd9a DN |
631 | if (sym->attr.target) |
632 | TREE_ADDRESSABLE (decl) = 1; | |
63a1dd10 | 633 | |
6de9cd9a DN |
634 | /* If it wasn't used we wouldn't be getting it. */ |
635 | TREE_USED (decl) = 1; | |
636 | ||
1e4b1376 TB |
637 | if (sym->attr.flavor == FL_PARAMETER |
638 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
639 | TREE_READONLY (decl) = 1; | |
640 | ||
6de9cd9a DN |
641 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
642 | because this would add them to the current scope rather than the | |
643 | function scope. */ | |
644 | if (current_function_decl != NULL_TREE) | |
645 | { | |
6869c12d PT |
646 | if (sym->ns->proc_name |
647 | && (sym->ns->proc_name->backend_decl == current_function_decl | |
648 | || sym->result == sym)) | |
6de9cd9a | 649 | gfc_add_decl_to_function (decl); |
6869c12d PT |
650 | else if (sym->ns->proc_name |
651 | && sym->ns->proc_name->attr.flavor == FL_LABEL) | |
9abe5e56 DK |
652 | /* This is a BLOCK construct. */ |
653 | add_decl_as_local (decl); | |
6de9cd9a DN |
654 | else |
655 | gfc_add_decl_to_parent_function (decl); | |
656 | } | |
657 | ||
b122dc6a JJ |
658 | if (sym->attr.cray_pointee) |
659 | return; | |
660 | ||
5af6fa0b | 661 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
a8b3b0b6 CR |
662 | { |
663 | /* We need to put variables that are bind(c) into the common | |
664 | segment of the object file, because this is what C would do. | |
665 | gfortran would typically put them in either the BSS or | |
666 | initialized data segments, and only mark them as common if | |
667 | they were part of common blocks. However, if they are not put | |
93c71688 | 668 | into common space, then C cannot initialize global Fortran |
a8b3b0b6 CR |
669 | variables that it interoperates with and the draft says that |
670 | either Fortran or C should be able to initialize it (but not | |
671 | both, of course.) (J3/04-007, section 15.3). */ | |
672 | TREE_PUBLIC(decl) = 1; | |
673 | DECL_COMMON(decl) = 1; | |
a56ea54a PT |
674 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
675 | { | |
676 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
677 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
678 | } | |
a8b3b0b6 | 679 | } |
8b704316 | 680 | |
6de9cd9a | 681 | /* If a variable is USE associated, it's always external. */ |
4668d6f9 | 682 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
6de9cd9a DN |
683 | { |
684 | DECL_EXTERNAL (decl) = 1; | |
685 | TREE_PUBLIC (decl) = 1; | |
686 | } | |
345bd7eb PT |
687 | else if (sym->fn_result_spec && !sym->ns->proc_name->module) |
688 | { | |
689 | ||
690 | if (sym->ns->proc_name->attr.if_source != IFSRC_DECL) | |
691 | DECL_EXTERNAL (decl) = 1; | |
692 | else | |
693 | TREE_STATIC (decl) = 1; | |
694 | ||
695 | TREE_PUBLIC (decl) = 1; | |
696 | } | |
cb9e4f55 | 697 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
6de9cd9a | 698 | { |
adf3ed3f | 699 | /* TODO: Don't set sym->module for result or dummy variables. */ |
d48734ef | 700 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
58341a42 | 701 | |
a56ea54a | 702 | TREE_PUBLIC (decl) = 1; |
6de9cd9a | 703 | TREE_STATIC (decl) = 1; |
a56ea54a PT |
704 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
705 | { | |
706 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
707 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
708 | } | |
6de9cd9a DN |
709 | } |
710 | ||
b7b184a8 PT |
711 | /* Derived types are a bit peculiar because of the possibility of |
712 | a default initializer; this must be applied each time the variable | |
713 | comes into scope it therefore need not be static. These variables | |
714 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
df2fba9e | 715 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
b7b184a8 PT |
716 | SAVE_EXPLICIT. */ |
717 | if (!sym->attr.use_assoc | |
718 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
b8ff4e88 | 719 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
f19626cf | 720 | || (flag_coarray == GFC_FCOARRAY_LIB |
b8ff4e88 | 721 | && sym->attr.codimension && !sym->attr.allocatable))) |
6de9cd9a | 722 | TREE_STATIC (decl) = 1; |
775e6c3a | 723 | |
e73d3ca6 PT |
724 | /* If derived-type variables with DTIO procedures are not made static |
725 | some bits of code referencing them get optimized away. | |
726 | TODO Understand why this is so and fix it. */ | |
727 | if (!sym->attr.use_assoc | |
728 | && ((sym->ts.type == BT_DERIVED | |
729 | && sym->ts.u.derived->attr.has_dtio_procs) | |
730 | || (sym->ts.type == BT_CLASS | |
731 | && CLASS_DATA (sym)->ts.u.derived->attr.has_dtio_procs))) | |
732 | TREE_STATIC (decl) = 1; | |
733 | ||
2b4c9065 NK |
734 | /* Treat asynchronous variables the same as volatile, for now. */ |
735 | if (sym->attr.volatile_ || sym->attr.asynchronous) | |
775e6c3a | 736 | { |
775e6c3a | 737 | TREE_THIS_VOLATILE (decl) = 1; |
c28d1d9b | 738 | TREE_SIDE_EFFECTS (decl) = 1; |
7b901ac4 KG |
739 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
740 | TREE_TYPE (decl) = new_type; | |
8b704316 | 741 | } |
775e6c3a | 742 | |
6de9cd9a | 743 | /* Keep variables larger than max-stack-var-size off stack. */ |
6869c12d PT |
744 | if (!(sym->ns->proc_name && sym->ns->proc_name->attr.recursive) |
745 | && !sym->attr.automatic | |
6de9cd9a | 746 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) |
9eccb94d JJ |
747 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
748 | /* Put variable length auto array pointers always into stack. */ | |
749 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
750 | || sym->attr.dimension == 0 | |
751 | || sym->as->type != AS_EXPLICIT | |
752 | || sym->attr.pointer | |
753 | || sym->attr.allocatable) | |
754 | && !DECL_ARTIFICIAL (decl)) | |
43068916 | 755 | { |
54320207 JB |
756 | gfc_warning (OPT_Wsurprising, |
757 | "Array %qs at %L is larger than limit set by" | |
758 | " %<-fmax-stack-var-size=%>, moved from stack to static" | |
759 | " storage. This makes the procedure unsafe when called" | |
760 | " recursively, or concurrently from multiple threads." | |
761 | " Consider using %<-frecursive%>, or increase the" | |
762 | " %<-fmax-stack-var-size=%> limit, or change the code to" | |
763 | " use an ALLOCATABLE array.", | |
764 | sym->name, &sym->declared_at); | |
765 | ||
43068916 FR |
766 | TREE_STATIC (decl) = 1; |
767 | ||
768 | /* Because the size of this variable isn't known until now, we may have | |
769 | greedily added an initializer to this variable (in build_init_assign) | |
770 | even though the max-stack-var-size indicates the variable should be | |
771 | static. Therefore we rip out the automatic initializer here and | |
772 | replace it with a static one. */ | |
773 | gfc_symtree *st = gfc_find_symtree (sym->ns->sym_root, sym->name); | |
774 | gfc_code *prev = NULL; | |
775 | gfc_code *code = sym->ns->code; | |
776 | while (code && code->op == EXEC_INIT_ASSIGN) | |
777 | { | |
778 | /* Look for an initializer meant for this symbol. */ | |
779 | if (code->expr1->symtree == st) | |
780 | { | |
781 | if (prev) | |
782 | prev->next = code->next; | |
783 | else | |
784 | sym->ns->code = code->next; | |
785 | ||
786 | break; | |
787 | } | |
788 | ||
789 | prev = code; | |
790 | code = code->next; | |
791 | } | |
792 | if (code && code->op == EXEC_INIT_ASSIGN) | |
793 | { | |
794 | /* Keep the init expression for a static initializer. */ | |
795 | sym->value = code->expr2; | |
796 | /* Cleanup the defunct code object, without freeing the init expr. */ | |
797 | code->expr2 = NULL; | |
798 | gfc_free_statement (code); | |
799 | free (code); | |
800 | } | |
801 | } | |
6c7a4dfd JJ |
802 | |
803 | /* Handle threadprivate variables. */ | |
8893239d | 804 | if (sym->attr.threadprivate |
6c7a4dfd | 805 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
56363ffd | 806 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
92d28cbb JJ |
807 | |
808 | gfc_finish_decl_attrs (decl, &sym->attr); | |
6de9cd9a DN |
809 | } |
810 | ||
811 | ||
812 | /* Allocate the lang-specific part of a decl. */ | |
813 | ||
814 | void | |
815 | gfc_allocate_lang_decl (tree decl) | |
816 | { | |
92d28cbb JJ |
817 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
818 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
6de9cd9a DN |
819 | } |
820 | ||
821 | /* Remember a symbol to generate initialization/cleanup code at function | |
822 | entry/exit. */ | |
823 | ||
824 | static void | |
825 | gfc_defer_symbol_init (gfc_symbol * sym) | |
826 | { | |
827 | gfc_symbol *p; | |
828 | gfc_symbol *last; | |
829 | gfc_symbol *head; | |
830 | ||
831 | /* Don't add a symbol twice. */ | |
832 | if (sym->tlink) | |
833 | return; | |
834 | ||
835 | last = head = sym->ns->proc_name; | |
836 | p = last->tlink; | |
837 | ||
838 | /* Make sure that setup code for dummy variables which are used in the | |
839 | setup of other variables is generated first. */ | |
840 | if (sym->attr.dummy) | |
841 | { | |
842 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
843 | This is a circular list, so don't go past the head. */ | |
844 | while (p != head | |
845 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
846 | { | |
847 | last = p; | |
848 | p = p->tlink; | |
849 | } | |
850 | } | |
851 | /* Insert in between last and p. */ | |
852 | last->tlink = sym; | |
853 | sym->tlink = p; | |
854 | } | |
855 | ||
856 | ||
0101807c PT |
857 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
858 | backend_decl for a module symbol, if it all ready exists. If the | |
859 | module gsymbol does not exist, it is created. If the symbol does | |
860 | not exist, it is added to the gsymbol namespace. Returns true if | |
861 | an existing backend_decl is found. */ | |
862 | ||
863 | bool | |
864 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
865 | { | |
866 | gfc_gsymbol *gsym; | |
867 | gfc_symbol *s; | |
868 | gfc_symtree *st; | |
869 | ||
870 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
871 | ||
872 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
873 | { | |
874 | st = NULL; | |
875 | s = NULL; | |
876 | ||
f6288c24 | 877 | /* Check for a symbol with the same name. */ |
0101807c PT |
878 | if (gsym) |
879 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
880 | ||
881 | if (!s) | |
882 | { | |
883 | if (!gsym) | |
884 | { | |
55b9c612 | 885 | gsym = gfc_get_gsymbol (sym->module, false); |
0101807c PT |
886 | gsym->type = GSYM_MODULE; |
887 | gsym->ns = gfc_get_namespace (NULL, 0); | |
888 | } | |
889 | ||
890 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
891 | st->n.sym = sym; | |
892 | sym->refs++; | |
893 | } | |
f6288c24 | 894 | else if (gfc_fl_struct (sym->attr.flavor)) |
0101807c | 895 | { |
c3f34952 TB |
896 | if (s && s->attr.flavor == FL_PROCEDURE) |
897 | { | |
898 | gfc_interface *intr; | |
899 | gcc_assert (s->attr.generic); | |
900 | for (intr = s->generic; intr; intr = intr->next) | |
f6288c24 | 901 | if (gfc_fl_struct (intr->sym->attr.flavor)) |
c3f34952 TB |
902 | { |
903 | s = intr->sym; | |
904 | break; | |
905 | } | |
906 | } | |
907 | ||
f6288c24 FR |
908 | /* Normally we can assume that s is a derived-type symbol since it |
909 | shares a name with the derived-type sym. However if sym is a | |
910 | STRUCTURE, it may in fact share a name with any other basic type | |
911 | variable. If s is in fact of derived type then we can continue | |
912 | looking for a duplicate type declaration. */ | |
913 | if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED) | |
914 | { | |
915 | s = s->ts.u.derived; | |
916 | } | |
917 | ||
918 | if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl) | |
919 | { | |
920 | if (s->attr.flavor == FL_UNION) | |
921 | s->backend_decl = gfc_get_union_type (s); | |
922 | else | |
923 | s->backend_decl = gfc_get_derived_type (s); | |
924 | } | |
0101807c PT |
925 | gfc_copy_dt_decls_ifequal (s, sym, true); |
926 | return true; | |
927 | } | |
928 | else if (s->backend_decl) | |
929 | { | |
f29bda83 | 930 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
0101807c PT |
931 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
932 | true); | |
933 | else if (sym->ts.type == BT_CHARACTER) | |
934 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
935 | sym->backend_decl = s->backend_decl; | |
936 | return true; | |
937 | } | |
938 | } | |
939 | return false; | |
940 | } | |
941 | ||
942 | ||
6de9cd9a DN |
943 | /* Create an array index type variable with function scope. */ |
944 | ||
945 | static tree | |
946 | create_index_var (const char * pfx, int nest) | |
947 | { | |
948 | tree decl; | |
949 | ||
950 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
951 | if (nest) | |
952 | gfc_add_decl_to_parent_function (decl); | |
953 | else | |
954 | gfc_add_decl_to_function (decl); | |
955 | return decl; | |
956 | } | |
957 | ||
958 | ||
959 | /* Create variables to hold all the non-constant bits of info for a | |
960 | descriptorless array. Remember these in the lang-specific part of the | |
961 | type. */ | |
962 | ||
963 | static void | |
964 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
965 | { | |
966 | tree type; | |
967 | int dim; | |
968 | int nest; | |
52bf62f9 | 969 | gfc_namespace* procns; |
f3b0bb7a AV |
970 | symbol_attribute *array_attr; |
971 | gfc_array_spec *as; | |
972 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
6de9cd9a DN |
973 | |
974 | type = TREE_TYPE (decl); | |
f3b0bb7a AV |
975 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
976 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
6de9cd9a DN |
977 | |
978 | /* We just use the descriptor, if there is one. */ | |
979 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
980 | return; | |
981 | ||
6e45f57b | 982 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
52bf62f9 DK |
983 | procns = gfc_find_proc_namespace (sym->ns); |
984 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
6de9cd9a DN |
985 | && !sym->attr.contained; |
986 | ||
f3b0bb7a AV |
987 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
988 | && as->type != AS_ASSUMED_SHAPE | |
b8ff4e88 TB |
989 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
990 | { | |
991 | tree token; | |
213ab0a6 TB |
992 | tree token_type = build_qualified_type (pvoid_type_node, |
993 | TYPE_QUAL_RESTRICT); | |
994 | ||
995 | if (sym->module && (sym->attr.use_assoc | |
996 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
997 | { | |
998 | tree token_name | |
999 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
1000 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
1001 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
1002 | token_type); | |
de1184c0 TB |
1003 | if (sym->attr.use_assoc) |
1004 | DECL_EXTERNAL (token) = 1; | |
1005 | else | |
1006 | TREE_STATIC (token) = 1; | |
1007 | ||
a56ea54a PT |
1008 | TREE_PUBLIC (token) = 1; |
1009 | ||
1010 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1011 | { | |
1012 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
1013 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
1014 | } | |
213ab0a6 TB |
1015 | } |
1016 | else | |
de1184c0 TB |
1017 | { |
1018 | token = gfc_create_var_np (token_type, "caf_token"); | |
1019 | TREE_STATIC (token) = 1; | |
1020 | } | |
b8ff4e88 | 1021 | |
b8ff4e88 TB |
1022 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
1023 | DECL_ARTIFICIAL (token) = 1; | |
de1184c0 TB |
1024 | DECL_NONALIASED (token) = 1; |
1025 | ||
1026 | if (sym->module && !sym->attr.use_assoc) | |
1027 | { | |
1028 | pushdecl (token); | |
1029 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
1030 | gfc_module_add_decl (cur_module, token); | |
1031 | } | |
118d5ed3 AV |
1032 | else if (sym->attr.host_assoc |
1033 | && TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
1034 | != TRANSLATION_UNIT_DECL) | |
3083fc56 | 1035 | gfc_add_decl_to_parent_function (token); |
de1184c0 TB |
1036 | else |
1037 | gfc_add_decl_to_function (token); | |
b8ff4e88 TB |
1038 | } |
1039 | ||
6de9cd9a DN |
1040 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
1041 | { | |
1042 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
01306727 FXC |
1043 | { |
1044 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
1045 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
1046 | } | |
aa9c57ec | 1047 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
6de9cd9a | 1048 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
f3b0bb7a AV |
1049 | && (as->type != AS_ASSUMED_SIZE |
1050 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
01306727 FXC |
1051 | { |
1052 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1053 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1054 | } | |
6de9cd9a DN |
1055 | |
1056 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
01306727 FXC |
1057 | { |
1058 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
1059 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
1060 | } | |
6de9cd9a | 1061 | } |
a3935ffc TB |
1062 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
1063 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
1064 | { | |
1065 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
1066 | { | |
1067 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
1068 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
1069 | } | |
1070 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
1071 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
1072 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
1073 | { | |
1074 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
1075 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
1076 | } | |
1077 | } | |
6de9cd9a DN |
1078 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
1079 | { | |
1080 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
1081 | "offset"); | |
01306727 FXC |
1082 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
1083 | ||
6de9cd9a DN |
1084 | if (nest) |
1085 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1086 | else | |
1087 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
1088 | } | |
417ab240 JJ |
1089 | |
1090 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
f3b0bb7a | 1091 | && as->type != AS_ASSUMED_SIZE) |
01306727 FXC |
1092 | { |
1093 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
1094 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
1095 | } | |
417ab240 JJ |
1096 | |
1097 | if (POINTER_TYPE_P (type)) | |
1098 | { | |
1099 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
1100 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
1101 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
1102 | type = TREE_TYPE (type); | |
1103 | } | |
1104 | ||
1105 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
1106 | { | |
1107 | tree size, range; | |
1108 | ||
bc98ed60 TB |
1109 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
1110 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
417ab240 JJ |
1111 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
1112 | size); | |
1113 | TYPE_DOMAIN (type) = range; | |
1114 | layout_type (type); | |
1115 | } | |
25c29c56 | 1116 | |
eb401400 | 1117 | if (TYPE_NAME (type) != NULL_TREE && as->rank > 0 |
f3b0bb7a | 1118 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
d168c883 | 1119 | && VAR_P (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1))) |
25c29c56 JJ |
1120 | { |
1121 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
1122 | ||
f3b0bb7a | 1123 | for (dim = 0; dim < as->rank - 1; dim++) |
25c29c56 JJ |
1124 | { |
1125 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1126 | gtype = TREE_TYPE (gtype); | |
1127 | } | |
1128 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
1129 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
1130 | TYPE_NAME (type) = NULL_TREE; | |
1131 | } | |
1132 | ||
1133 | if (TYPE_NAME (type) == NULL_TREE) | |
1134 | { | |
1135 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
1136 | ||
f3b0bb7a | 1137 | for (dim = as->rank - 1; dim >= 0; dim--) |
25c29c56 | 1138 | { |
fcd3c5a9 JJ |
1139 | tree lbound, ubound; |
1140 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
1141 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
1142 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
25c29c56 | 1143 | gtype = build_array_type (gtype, rtype); |
e429bb49 JJ |
1144 | /* Ensure the bound variables aren't optimized out at -O0. |
1145 | For -O1 and above they often will be optimized out, but | |
cd3f04c8 JJ |
1146 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
1147 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
1148 | end up in debug info. */ | |
d168c883 JJ |
1149 | if (lbound |
1150 | && VAR_P (lbound) | |
1151 | && DECL_ARTIFICIAL (lbound) | |
1152 | && DECL_IGNORED_P (lbound)) | |
fcd3c5a9 JJ |
1153 | { |
1154 | if (DECL_NAME (lbound) | |
1155 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
1156 | "lbound") != 0) | |
cd3f04c8 | 1157 | DECL_NAMELESS (lbound) = 1; |
fcd3c5a9 JJ |
1158 | DECL_IGNORED_P (lbound) = 0; |
1159 | } | |
d168c883 JJ |
1160 | if (ubound |
1161 | && VAR_P (ubound) | |
1162 | && DECL_ARTIFICIAL (ubound) | |
1163 | && DECL_IGNORED_P (ubound)) | |
fcd3c5a9 JJ |
1164 | { |
1165 | if (DECL_NAME (ubound) | |
1166 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1167 | "ubound") != 0) | |
cd3f04c8 | 1168 | DECL_NAMELESS (ubound) = 1; |
fcd3c5a9 JJ |
1169 | DECL_IGNORED_P (ubound) = 0; |
1170 | } | |
25c29c56 | 1171 | } |
c2255bc4 AH |
1172 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1173 | TYPE_DECL, NULL, gtype); | |
25c29c56 JJ |
1174 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1175 | } | |
6de9cd9a DN |
1176 | } |
1177 | ||
1178 | ||
1179 | /* For some dummy arguments we don't use the actual argument directly. | |
bae88af6 | 1180 | Instead we create a local decl and use that. This allows us to perform |
6de9cd9a DN |
1181 | initialization, and construct full type information. */ |
1182 | ||
1183 | static tree | |
1184 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1185 | { | |
1186 | tree decl; | |
1187 | tree type; | |
1188 | gfc_array_spec *as; | |
f3b0bb7a | 1189 | symbol_attribute *array_attr; |
6de9cd9a | 1190 | char *name; |
dcfef7d4 | 1191 | gfc_packed packed; |
6de9cd9a DN |
1192 | int n; |
1193 | bool known_size; | |
f3b0bb7a AV |
1194 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1195 | ||
1196 | /* Use the array as and attr. */ | |
1197 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1198 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1199 | ||
1200 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1201 | For class arrays the information if sym is an allocatable or pointer | |
1202 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1203 | too many reasons to be of use here). */ | |
1204 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1205 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1206 | || array_attr->allocatable | |
1207 | || (as && as->type == AS_ASSUMED_RANK)) | |
6de9cd9a DN |
1208 | return dummy; |
1209 | ||
f3b0bb7a AV |
1210 | /* Add to list of variables if not a fake result variable. |
1211 | These symbols are set on the symbol only, not on the class component. */ | |
6de9cd9a DN |
1212 | if (sym->attr.result || sym->attr.dummy) |
1213 | gfc_defer_symbol_init (sym); | |
1214 | ||
f3b0bb7a AV |
1215 | /* For a class array the array descriptor is in the _data component, while |
1216 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1217 | descriptor. */ | |
1218 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1219 | : TREE_TYPE (dummy)); | |
1220 | /* type now is the array descriptor w/o any indirection. */ | |
6e45f57b | 1221 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
f3b0bb7a | 1222 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
6de9cd9a | 1223 | |
f8d0aee5 | 1224 | /* Do we know the element size? */ |
6de9cd9a | 1225 | known_size = sym->ts.type != BT_CHARACTER |
bc21d315 | 1226 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
8b704316 | 1227 | |
f3b0bb7a | 1228 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
6de9cd9a DN |
1229 | { |
1230 | /* For descriptorless arrays with known element size the actual | |
1231 | argument is sufficient. */ | |
6de9cd9a DN |
1232 | gfc_build_qualified_array (dummy, sym); |
1233 | return dummy; | |
1234 | } | |
1235 | ||
6de9cd9a DN |
1236 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1237 | { | |
fa951694 | 1238 | /* Create a descriptorless array pointer. */ |
dcfef7d4 | 1239 | packed = PACKED_NO; |
1c3339af FXC |
1240 | |
1241 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1242 | are not repacked. */ | |
c61819ff | 1243 | if (!flag_repack_arrays || sym->attr.target) |
6de9cd9a DN |
1244 | { |
1245 | if (as->type == AS_ASSUMED_SIZE) | |
dcfef7d4 | 1246 | packed = PACKED_FULL; |
6de9cd9a DN |
1247 | } |
1248 | else | |
1249 | { | |
1250 | if (as->type == AS_EXPLICIT) | |
1251 | { | |
dcfef7d4 | 1252 | packed = PACKED_FULL; |
6de9cd9a DN |
1253 | for (n = 0; n < as->rank; n++) |
1254 | { | |
1255 | if (!(as->upper[n] | |
1256 | && as->lower[n] | |
1257 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1258 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
ae382ebd PCC |
1259 | { |
1260 | packed = PACKED_PARTIAL; | |
1261 | break; | |
1262 | } | |
6de9cd9a DN |
1263 | } |
1264 | } | |
1265 | else | |
dcfef7d4 | 1266 | packed = PACKED_PARTIAL; |
6de9cd9a DN |
1267 | } |
1268 | ||
f3b0bb7a AV |
1269 | /* For classarrays the element type is required, but |
1270 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1271 | type = is_classarray ? gfc_get_element_type (type) | |
1272 | : gfc_typenode_for_spec (&sym->ts); | |
1273 | type = gfc_get_nodesc_array_type (type, as, packed, | |
10174ddf | 1274 | !sym->attr.target); |
6de9cd9a DN |
1275 | } |
1276 | else | |
1277 | { | |
1278 | /* We now have an expression for the element size, so create a fully | |
1279 | qualified type. Reset sym->backend decl or this will just return the | |
1280 | old type. */ | |
3e978d30 | 1281 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
6de9cd9a DN |
1282 | sym->backend_decl = NULL_TREE; |
1283 | type = gfc_sym_type (sym); | |
dcfef7d4 | 1284 | packed = PACKED_FULL; |
6de9cd9a DN |
1285 | } |
1286 | ||
1287 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
c2255bc4 AH |
1288 | decl = build_decl (input_location, |
1289 | VAR_DECL, get_identifier (name), type); | |
6de9cd9a DN |
1290 | |
1291 | DECL_ARTIFICIAL (decl) = 1; | |
cd3f04c8 | 1292 | DECL_NAMELESS (decl) = 1; |
6de9cd9a DN |
1293 | TREE_PUBLIC (decl) = 0; |
1294 | TREE_STATIC (decl) = 0; | |
1295 | DECL_EXTERNAL (decl) = 0; | |
1296 | ||
879287d9 JJ |
1297 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1298 | if (sym->attr.optional) | |
1299 | TREE_NO_WARNING (decl) = 1; | |
1300 | ||
6de9cd9a DN |
1301 | /* We should never get deferred shape arrays here. We used to because of |
1302 | frontend bugs. */ | |
f3b0bb7a | 1303 | gcc_assert (as->type != AS_DEFERRED); |
6de9cd9a | 1304 | |
dcfef7d4 TS |
1305 | if (packed == PACKED_PARTIAL) |
1306 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1307 | else if (packed == PACKED_FULL) | |
1308 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
6de9cd9a DN |
1309 | |
1310 | gfc_build_qualified_array (decl, sym); | |
1311 | ||
1312 | if (DECL_LANG_SPECIFIC (dummy)) | |
1313 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1314 | else | |
1315 | gfc_allocate_lang_decl (decl); | |
1316 | ||
1317 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1318 | ||
1319 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1320 | || sym->attr.contained) | |
1321 | gfc_add_decl_to_function (decl); | |
1322 | else | |
1323 | gfc_add_decl_to_parent_function (decl); | |
1324 | ||
1325 | return decl; | |
1326 | } | |
1327 | ||
6de9cd9a DN |
1328 | /* Return a constant or a variable to use as a string length. Does not |
1329 | add the decl to the current scope. */ | |
1330 | ||
1331 | static tree | |
1332 | gfc_create_string_length (gfc_symbol * sym) | |
1333 | { | |
bc21d315 JW |
1334 | gcc_assert (sym->ts.u.cl); |
1335 | gfc_conv_const_charlen (sym->ts.u.cl); | |
cadb8f42 | 1336 | |
bc21d315 | 1337 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
6de9cd9a | 1338 | { |
cadb8f42 | 1339 | tree length; |
6052c299 | 1340 | const char *name; |
6de9cd9a | 1341 | |
26c08c03 TB |
1342 | /* The string length variable shall be in static memory if it is either |
1343 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1344 | relevant is "len=:" - otherwise, it is either a constant length or | |
1345 | it is an automatic variable. */ | |
36085529 TB |
1346 | bool static_length = sym->attr.save |
1347 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
203c7ebf | 1348 | || (flag_max_stack_var_size == 0 |
26c08c03 TB |
1349 | && sym->ts.deferred && !sym->attr.dummy |
1350 | && !sym->attr.result && !sym->attr.function); | |
36085529 TB |
1351 | |
1352 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1353 | variables as some systems do not support the "." in the assembler name. | |
1354 | For nonstatic variables, the "." does not appear in assembler. */ | |
1355 | if (static_length) | |
1356 | { | |
1357 | if (sym->module) | |
1358 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1359 | sym->name); | |
1360 | else | |
1361 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1362 | } | |
1363 | else if (sym->module) | |
6052c299 TB |
1364 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1365 | else | |
1366 | name = gfc_get_string (".%s", sym->name); | |
1367 | ||
c2255bc4 AH |
1368 | length = build_decl (input_location, |
1369 | VAR_DECL, get_identifier (name), | |
d7177ab2 | 1370 | gfc_charlen_type_node); |
6de9cd9a DN |
1371 | DECL_ARTIFICIAL (length) = 1; |
1372 | TREE_USED (length) = 1; | |
417ab240 JJ |
1373 | if (sym->ns->proc_name->tlink != NULL) |
1374 | gfc_defer_symbol_init (sym); | |
cadb8f42 | 1375 | |
bc21d315 | 1376 | sym->ts.u.cl->backend_decl = length; |
6052c299 | 1377 | |
36085529 | 1378 | if (static_length) |
6052c299 TB |
1379 | TREE_STATIC (length) = 1; |
1380 | ||
1381 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1382 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1383 | TREE_PUBLIC (length) = 1; | |
6de9cd9a DN |
1384 | } |
1385 | ||
bc21d315 JW |
1386 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1387 | return sym->ts.u.cl->backend_decl; | |
6de9cd9a DN |
1388 | } |
1389 | ||
910450c1 FW |
1390 | /* If a variable is assigned a label, we add another two auxiliary |
1391 | variables. */ | |
1392 | ||
1393 | static void | |
1394 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1395 | { | |
1396 | tree addr; | |
1397 | tree length; | |
1398 | tree decl; | |
1399 | ||
1400 | gcc_assert (sym->backend_decl); | |
1401 | ||
1402 | decl = sym->backend_decl; | |
1403 | gfc_allocate_lang_decl (decl); | |
1404 | GFC_DECL_ASSIGN (decl) = 1; | |
c2255bc4 AH |
1405 | length = build_decl (input_location, |
1406 | VAR_DECL, create_tmp_var_name (sym->name), | |
910450c1 | 1407 | gfc_charlen_type_node); |
c2255bc4 AH |
1408 | addr = build_decl (input_location, |
1409 | VAR_DECL, create_tmp_var_name (sym->name), | |
910450c1 FW |
1410 | pvoid_type_node); |
1411 | gfc_finish_var_decl (length, sym); | |
1412 | gfc_finish_var_decl (addr, sym); | |
1413 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
67914693 | 1414 | ASSIGN_ADDR cannot be used. Equal -1 means that ASSIGN_ADDR is the |
910450c1 FW |
1415 | target label's address. Otherwise, value is the length of a format string |
1416 | and ASSIGN_ADDR is its address. */ | |
1417 | if (TREE_STATIC (length)) | |
df09d1d5 | 1418 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
910450c1 FW |
1419 | else |
1420 | gfc_defer_symbol_init (sym); | |
1421 | ||
1422 | GFC_DECL_STRING_LEN (decl) = length; | |
1423 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1424 | } | |
6de9cd9a | 1425 | |
08a6b8e0 TB |
1426 | |
1427 | static tree | |
1428 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1429 | { | |
1430 | unsigned id; | |
1431 | tree attr; | |
1432 | ||
1433 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1434 | if (sym_attr.ext_attr & (1 << id)) | |
1435 | { | |
1436 | attr = build_tree_list ( | |
1437 | get_identifier (ext_attr_list[id].middle_end_name), | |
1438 | NULL_TREE); | |
1439 | list = chainon (list, attr); | |
1440 | } | |
1441 | ||
e03436e7 | 1442 | tree clauses = NULL_TREE; |
f014c653 | 1443 | |
68034b1b | 1444 | if (sym_attr.oacc_routine_lop != OACC_ROUTINE_LOP_NONE) |
db941d7e | 1445 | { |
68034b1b TS |
1446 | omp_clause_code code; |
1447 | switch (sym_attr.oacc_routine_lop) | |
1448 | { | |
1449 | case OACC_ROUTINE_LOP_GANG: | |
1450 | code = OMP_CLAUSE_GANG; | |
1451 | break; | |
1452 | case OACC_ROUTINE_LOP_WORKER: | |
1453 | code = OMP_CLAUSE_WORKER; | |
1454 | break; | |
1455 | case OACC_ROUTINE_LOP_VECTOR: | |
1456 | code = OMP_CLAUSE_VECTOR; | |
1457 | break; | |
1458 | case OACC_ROUTINE_LOP_SEQ: | |
1459 | code = OMP_CLAUSE_SEQ; | |
1460 | break; | |
1461 | case OACC_ROUTINE_LOP_NONE: | |
e5fd6684 | 1462 | case OACC_ROUTINE_LOP_ERROR: |
68034b1b TS |
1463 | default: |
1464 | gcc_unreachable (); | |
1465 | } | |
1466 | tree c = build_omp_clause (UNKNOWN_LOCATION, code); | |
e03436e7 TS |
1467 | OMP_CLAUSE_CHAIN (c) = clauses; |
1468 | clauses = c; | |
db941d7e | 1469 | |
e03436e7 | 1470 | tree dims = oacc_build_routine_dims (clauses); |
68034b1b | 1471 | list = oacc_replace_fn_attrib_attr (list, dims); |
db941d7e CP |
1472 | } |
1473 | ||
ca8ecd91 TS |
1474 | if (sym_attr.omp_declare_target_link |
1475 | || sym_attr.oacc_declare_link) | |
e03436e7 TS |
1476 | list = tree_cons (get_identifier ("omp declare target link"), |
1477 | NULL_TREE, list); | |
ca8ecd91 TS |
1478 | else if (sym_attr.omp_declare_target |
1479 | || sym_attr.oacc_declare_create | |
1480 | || sym_attr.oacc_declare_copyin | |
1481 | || sym_attr.oacc_declare_deviceptr | |
1482 | || sym_attr.oacc_declare_device_resident) | |
e03436e7 TS |
1483 | list = tree_cons (get_identifier ("omp declare target"), |
1484 | clauses, list); | |
1485 | ||
08a6b8e0 TB |
1486 | return list; |
1487 | } | |
1488 | ||
1489 | ||
1d0134b3 JW |
1490 | static void build_function_decl (gfc_symbol * sym, bool global); |
1491 | ||
1492 | ||
6de9cd9a DN |
1493 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1494 | exist. */ | |
1495 | ||
1496 | tree | |
1497 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1498 | { | |
1499 | tree decl; | |
1500 | tree length = NULL_TREE; | |
08a6b8e0 | 1501 | tree attributes; |
6de9cd9a | 1502 | int byref; |
be1f1ed9 | 1503 | bool intrinsic_array_parameter = false; |
431e4685 | 1504 | bool fun_or_res; |
6de9cd9a | 1505 | |
61321991 | 1506 | gcc_assert (sym->attr.referenced |
29be7510 JW |
1507 | || sym->attr.flavor == FL_PROCEDURE |
1508 | || sym->attr.use_assoc | |
4668d6f9 | 1509 | || sym->attr.used_in_submodule |
29be7510 JW |
1510 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1511 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1512 | && sym->backend_decl)); | |
6de9cd9a | 1513 | |
f64edc8b | 1514 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
6de9cd9a DN |
1515 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1516 | else | |
1517 | byref = 0; | |
1518 | ||
eece1eb9 PT |
1519 | /* Make sure that the vtab for the declared type is completed. */ |
1520 | if (sym->ts.type == BT_CLASS) | |
1521 | { | |
7a08eda1 | 1522 | gfc_component *c = CLASS_DATA (sym); |
eece1eb9 | 1523 | if (!c->ts.u.derived->backend_decl) |
58eba515 JW |
1524 | { |
1525 | gfc_find_derived_vtab (c->ts.u.derived); | |
1526 | gfc_get_derived_type (sym->ts.u.derived); | |
1527 | } | |
eece1eb9 PT |
1528 | } |
1529 | ||
5bab4c96 PT |
1530 | /* PDT parameterized array components and string_lengths must have the |
1531 | 'len' parameters substituted for the expressions appearing in the | |
1532 | declaration of the entity and memory allocated/deallocated. */ | |
1533 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1534 | && sym->param_list != NULL | |
1535 | && !(sym->attr.host_assoc || sym->attr.use_assoc || sym->attr.dummy)) | |
1536 | gfc_defer_symbol_init (sym); | |
1537 | ||
1538 | /* Dummy PDT 'len' parameters should be checked when they are explicit. */ | |
1539 | if ((sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) | |
1540 | && (gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) | |
1541 | && sym->param_list != NULL | |
1542 | && sym->attr.dummy) | |
1543 | gfc_defer_symbol_init (sym); | |
1544 | ||
8d51f26f PT |
1545 | /* All deferred character length procedures need to retain the backend |
1546 | decl, which is a pointer to the character length in the caller's | |
1547 | namespace and to declare a local character length. */ | |
1548 | if (!byref && sym->attr.function | |
1549 | && sym->ts.type == BT_CHARACTER | |
1550 | && sym->ts.deferred | |
1551 | && sym->ts.u.cl->passed_length == NULL | |
1552 | && sym->ts.u.cl->backend_decl | |
1553 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1554 | { | |
1555 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
afbc5ae8 PT |
1556 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1557 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
8d51f26f PT |
1558 | } |
1559 | ||
431e4685 TB |
1560 | fun_or_res = byref && (sym->attr.result |
1561 | || (sym->attr.function && sym->ts.deferred)); | |
1562 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
6de9cd9a DN |
1563 | { |
1564 | /* Return via extra parameter. */ | |
1565 | if (sym->attr.result && byref | |
1566 | && !sym->backend_decl) | |
1567 | { | |
1568 | sym->backend_decl = | |
1569 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
d198b59a JJ |
1570 | /* For entry master function skip over the __entry |
1571 | argument. */ | |
1572 | if (sym->ns->proc_name->attr.entry_master) | |
910ad8de | 1573 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
6de9cd9a DN |
1574 | } |
1575 | ||
1576 | /* Dummy variables should already have been created. */ | |
6e45f57b | 1577 | gcc_assert (sym->backend_decl); |
6de9cd9a | 1578 | |
ca32d61b PT |
1579 | /* However, the string length of deferred arrays must be set. */ |
1580 | if (sym->ts.type == BT_CHARACTER | |
1581 | && sym->ts.deferred | |
1582 | && sym->attr.dimension | |
1583 | && sym->attr.allocatable) | |
1584 | gfc_defer_symbol_init (sym); | |
1585 | ||
ff3598bc PT |
1586 | if (sym->attr.pointer && sym->attr.dimension && sym->ts.type != BT_CLASS) |
1587 | GFC_DECL_PTR_ARRAY_P (sym->backend_decl) = 1; | |
1588 | ||
6de9cd9a DN |
1589 | /* Create a character length variable. */ |
1590 | if (sym->ts.type == BT_CHARACTER) | |
1591 | { | |
8d51f26f PT |
1592 | /* For a deferred dummy, make a new string length variable. */ |
1593 | if (sym->ts.deferred | |
1594 | && | |
1595 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1596 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1597 | ||
adbfb3f8 | 1598 | if (sym->ts.deferred && byref) |
8d51f26f | 1599 | { |
adbfb3f8 AV |
1600 | /* The string length of a deferred char array is stored in the |
1601 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1602 | marked as a result. Exempt this variable from generating a | |
1603 | temporary for it. */ | |
1604 | if (sym->attr.result) | |
1605 | { | |
1606 | /* We need to insert a indirect ref for param decls. */ | |
1607 | if (sym->ts.u.cl->backend_decl | |
1608 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
afbc5ae8 PT |
1609 | { |
1610 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
b62df3bf | 1611 | sym->ts.u.cl->backend_decl = |
adbfb3f8 | 1612 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
b62df3bf | 1613 | } |
afbc5ae8 | 1614 | } |
adbfb3f8 AV |
1615 | /* For all other parameters make sure, that they are copied so |
1616 | that the value and any modifications are local to the routine | |
1617 | by generating a temporary variable. */ | |
1618 | else if (sym->attr.function | |
1619 | && sym->ts.u.cl->passed_length == NULL | |
1620 | && sym->ts.u.cl->backend_decl) | |
1621 | { | |
1622 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
afbc5ae8 PT |
1623 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1624 | sym->ts.u.cl->backend_decl | |
1625 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1626 | else | |
b62df3bf | 1627 | sym->ts.u.cl->backend_decl = NULL_TREE; |
adbfb3f8 | 1628 | } |
8d51f26f PT |
1629 | } |
1630 | ||
bc21d315 | 1631 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
417ab240 JJ |
1632 | length = gfc_create_string_length (sym); |
1633 | else | |
bc21d315 | 1634 | length = sym->ts.u.cl->backend_decl; |
d168c883 | 1635 | if (VAR_P (length) && DECL_FILE_SCOPE_P (length)) |
6de9cd9a | 1636 | { |
3e978d30 | 1637 | /* Add the string length to the same context as the symbol. */ |
152f258f JJ |
1638 | if (DECL_CONTEXT (length) == NULL_TREE) |
1639 | { | |
1640 | if (DECL_CONTEXT (sym->backend_decl) | |
1641 | == current_function_decl) | |
1642 | gfc_add_decl_to_function (length); | |
1643 | else | |
1644 | gfc_add_decl_to_parent_function (length); | |
1645 | } | |
3e978d30 | 1646 | |
152f258f JJ |
1647 | gcc_assert (DECL_CONTEXT (sym->backend_decl) |
1648 | == DECL_CONTEXT (length)); | |
3e978d30 | 1649 | |
417ab240 | 1650 | gfc_defer_symbol_init (sym); |
a41baa64 | 1651 | } |
6de9cd9a DN |
1652 | } |
1653 | ||
1654 | /* Use a copy of the descriptor for dummy arrays. */ | |
4ca9939b TB |
1655 | if ((sym->attr.dimension || sym->attr.codimension) |
1656 | && !TREE_USED (sym->backend_decl)) | |
6de9cd9a | 1657 | { |
3e978d30 PT |
1658 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1659 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1660 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1661 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1662 | sym->backend_decl = decl; | |
6de9cd9a DN |
1663 | } |
1664 | ||
f3b0bb7a AV |
1665 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1666 | some caller is expecting an expression to apply the component refs to. | |
1667 | Therefore the descriptor is only created and stored in | |
1668 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1669 | responsible to extract it from there, when the descriptor is | |
1670 | desired. */ | |
1671 | if (IS_CLASS_ARRAY (sym) | |
1672 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1673 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1674 | { | |
1675 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1676 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1677 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1678 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1679 | sym->backend_decl = decl; | |
1680 | } | |
1681 | ||
6de9cd9a | 1682 | TREE_USED (sym->backend_decl) = 1; |
910450c1 FW |
1683 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1684 | { | |
1685 | gfc_add_assign_aux_vars (sym); | |
1686 | } | |
77f2a970 | 1687 | |
c49ea23d PT |
1688 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1689 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1690 | ||
c49ea23d | 1691 | return sym->backend_decl; |
6de9cd9a DN |
1692 | } |
1693 | ||
1694 | if (sym->backend_decl) | |
1695 | return sym->backend_decl; | |
1696 | ||
4ed5664e TB |
1697 | /* Special case for array-valued named constants from intrinsic |
1698 | procedures; those are inlined. */ | |
8b198102 FXC |
1699 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1700 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1701 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
4ed5664e TB |
1702 | intrinsic_array_parameter = true; |
1703 | ||
9fa52231 | 1704 | /* If use associated compilation, use the module |
43afc047 | 1705 | declaration. */ |
9fa52231 TB |
1706 | if ((sym->attr.flavor == FL_VARIABLE |
1707 | || sym->attr.flavor == FL_PARAMETER) | |
cded7919 | 1708 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
9fa52231 TB |
1709 | && !intrinsic_array_parameter |
1710 | && sym->module | |
1711 | && gfc_get_module_backend_decl (sym)) | |
c49ea23d PT |
1712 | { |
1713 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1714 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1715 | return sym->backend_decl; | |
1716 | } | |
3af8d8cb | 1717 | |
6de9cd9a DN |
1718 | if (sym->attr.flavor == FL_PROCEDURE) |
1719 | { | |
ab1668f6 | 1720 | /* Catch functions. Only used for actual parameters, |
1d0134b3 | 1721 | procedure pointers and procptr initialization targets. */ |
ee077fcb PT |
1722 | if (sym->attr.use_assoc |
1723 | || sym->attr.used_in_submodule | |
1724 | || sym->attr.intrinsic | |
ab1668f6 | 1725 | || sym->attr.if_source != IFSRC_DECL) |
1d0134b3 JW |
1726 | { |
1727 | decl = gfc_get_extern_function_decl (sym); | |
1728 | gfc_set_decl_location (decl, &sym->declared_at); | |
1729 | } | |
1730 | else | |
1731 | { | |
1732 | if (!sym->backend_decl) | |
1733 | build_function_decl (sym, false); | |
1734 | decl = sym->backend_decl; | |
1735 | } | |
6de9cd9a DN |
1736 | return decl; |
1737 | } | |
1738 | ||
1739 | if (sym->attr.intrinsic) | |
17d5d49f | 1740 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
6de9cd9a DN |
1741 | |
1742 | /* Create string length decl first so that they can be used in the | |
e207c522 PT |
1743 | type declaration. For associate names, the target character |
1744 | length is used. Set 'length' to a constant so that if the | |
345bd7eb | 1745 | string length is a variable, it is not finished a second time. */ |
6de9cd9a | 1746 | if (sym->ts.type == BT_CHARACTER) |
e207c522 | 1747 | { |
707905d0 PT |
1748 | if (sym->attr.associate_var |
1749 | && sym->ts.deferred | |
1750 | && sym->assoc && sym->assoc->target | |
1751 | && ((sym->assoc->target->expr_type == EXPR_VARIABLE | |
1752 | && sym->assoc->target->symtree->n.sym->ts.type != BT_CHARACTER) | |
5c60dbc1 | 1753 | || sym->assoc->target->expr_type != EXPR_VARIABLE)) |
707905d0 PT |
1754 | sym->ts.u.cl->backend_decl = NULL_TREE; |
1755 | ||
e207c522 PT |
1756 | if (sym->attr.associate_var |
1757 | && sym->ts.u.cl->backend_decl | |
5c60dbc1 PT |
1758 | && (VAR_P (sym->ts.u.cl->backend_decl) |
1759 | || TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL)) | |
e207c522 PT |
1760 | length = gfc_index_zero_node; |
1761 | else | |
1762 | length = gfc_create_string_length (sym); | |
1763 | } | |
6de9cd9a DN |
1764 | |
1765 | /* Create the decl for the variable. */ | |
c2255bc4 AH |
1766 | decl = build_decl (sym->declared_at.lb->location, |
1767 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
c8cc8542 | 1768 | |
43ce5e52 FXC |
1769 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1770 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1771 | decl_attributes (&decl, attributes, 0); | |
1772 | ||
f8d0aee5 | 1773 | /* Symbols from modules should have their assembler names mangled. |
6de9cd9a DN |
1774 | This is done here rather than in gfc_finish_var_decl because it |
1775 | is different for string length variables. */ | |
345bd7eb | 1776 | if (sym->module || sym->fn_result_spec) |
a64f5186 | 1777 | { |
43ce5e52 | 1778 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
be1f1ed9 | 1779 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
a64f5186 JJ |
1780 | DECL_IGNORED_P (decl) = 1; |
1781 | } | |
6de9cd9a | 1782 | |
b3996898 JJ |
1783 | if (sym->attr.select_type_temporary) |
1784 | { | |
1785 | DECL_ARTIFICIAL (decl) = 1; | |
1786 | DECL_IGNORED_P (decl) = 1; | |
1787 | } | |
1788 | ||
4ca9939b | 1789 | if (sym->attr.dimension || sym->attr.codimension) |
6de9cd9a DN |
1790 | { |
1791 | /* Create variables to hold the non-constant bits of array info. */ | |
1792 | gfc_build_qualified_array (decl, sym); | |
1793 | ||
fe4e525c TB |
1794 | if (sym->attr.contiguous |
1795 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
6de9cd9a DN |
1796 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1797 | } | |
1798 | ||
1517fd57 | 1799 | /* Remember this variable for allocation/cleanup. */ |
9f3761c5 | 1800 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
1517fd57 | 1801 | || (sym->ts.type == BT_CLASS && |
7a08eda1 JW |
1802 | (CLASS_DATA (sym)->attr.dimension |
1803 | || CLASS_DATA (sym)->attr.allocatable)) | |
ea8b72e6 TB |
1804 | || (sym->ts.type == BT_DERIVED |
1805 | && (sym->ts.u.derived->attr.alloc_comp | |
1806 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1807 | && !sym->ns->proc_name->attr.is_main_program | |
1808 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
1517fd57 JW |
1809 | /* This applies a derived type default initializer. */ |
1810 | || (sym->ts.type == BT_DERIVED | |
1811 | && sym->attr.save == SAVE_NONE | |
1812 | && !sym->attr.data | |
1813 | && !sym->attr.allocatable | |
1814 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
be1f1ed9 | 1815 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
b7b184a8 | 1816 | gfc_defer_symbol_init (sym); |
5046aff5 | 1817 | |
d44235fb PT |
1818 | if (sym->ts.type == BT_CHARACTER |
1819 | && sym->attr.allocatable | |
1820 | && !sym->attr.dimension | |
1821 | && sym->ts.u.cl && sym->ts.u.cl->length | |
1822 | && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE) | |
1823 | gfc_defer_symbol_init (sym); | |
1824 | ||
8ae261c0 JJ |
1825 | /* Associate names can use the hidden string length variable |
1826 | of their associated target. */ | |
1827 | if (sym->ts.type == BT_CHARACTER | |
26f822c2 PT |
1828 | && TREE_CODE (length) != INTEGER_CST |
1829 | && TREE_CODE (sym->ts.u.cl->backend_decl) != INDIRECT_REF) | |
8ae261c0 | 1830 | { |
3665f77c | 1831 | length = fold_convert (gfc_charlen_type_node, length); |
8ae261c0 | 1832 | gfc_finish_var_decl (length, sym); |
8ba60ec4 PT |
1833 | if (!sym->attr.associate_var |
1834 | && TREE_CODE (length) == VAR_DECL | |
75a6d7da PT |
1835 | && sym->value && sym->value->expr_type != EXPR_NULL |
1836 | && sym->value->ts.u.cl->length) | |
8ba60ec4 PT |
1837 | { |
1838 | gfc_expr *len = sym->value->ts.u.cl->length; | |
1839 | DECL_INITIAL (length) = gfc_conv_initializer (len, &len->ts, | |
1840 | TREE_TYPE (length), | |
1841 | false, false, false); | |
3665f77c PT |
1842 | DECL_INITIAL (length) = fold_convert (gfc_charlen_type_node, |
1843 | DECL_INITIAL (length)); | |
8ba60ec4 PT |
1844 | } |
1845 | else | |
75a6d7da | 1846 | gcc_assert (!sym->value || sym->value->expr_type == EXPR_NULL); |
8ae261c0 JJ |
1847 | } |
1848 | ||
6de9cd9a DN |
1849 | gfc_finish_var_decl (decl, sym); |
1850 | ||
597073ac | 1851 | if (sym->ts.type == BT_CHARACTER) |
8ae261c0 JJ |
1852 | /* Character variables need special handling. */ |
1853 | gfc_allocate_lang_decl (decl); | |
1d6b7f39 | 1854 | |
ff3598bc PT |
1855 | if (sym->assoc && sym->attr.subref_array_pointer) |
1856 | sym->attr.pointer = 1; | |
1857 | ||
1858 | if (sym->attr.pointer && sym->attr.dimension | |
1859 | && !sym->ts.deferred | |
1860 | && !(sym->attr.select_type_temporary | |
1861 | && !sym->attr.subref_array_pointer)) | |
1862 | GFC_DECL_PTR_ARRAY_P (decl) = 1; | |
1d6b7f39 | 1863 | |
c49ea23d | 1864 | if (sym->ts.type == BT_CLASS) |
ff3598bc | 1865 | GFC_DECL_CLASS(decl) = 1; |
c49ea23d | 1866 | |
6de9cd9a DN |
1867 | sym->backend_decl = decl; |
1868 | ||
910450c1 | 1869 | if (sym->attr.assign) |
6c0e51c4 | 1870 | gfc_add_assign_aux_vars (sym); |
910450c1 | 1871 | |
be1f1ed9 TB |
1872 | if (intrinsic_array_parameter) |
1873 | { | |
1874 | TREE_STATIC (decl) = 1; | |
1875 | DECL_EXTERNAL (decl) = 0; | |
1876 | } | |
1877 | ||
1878 | if (TREE_STATIC (decl) | |
1879 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
2b56d6a4 | 1880 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
43068916 | 1881 | || !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
b8ff4e88 | 1882 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
f19626cf | 1883 | && (flag_coarray != GFC_FCOARRAY_LIB |
276515e6 PT |
1884 | || !sym->attr.codimension || sym->attr.allocatable) |
1885 | && !(sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
1886 | && !(sym->ts.type == BT_CLASS | |
1887 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type)) | |
2b56d6a4 TB |
1888 | { |
1889 | /* Add static initializer. For procedures, it is only needed if | |
1890 | SAVE is specified otherwise they need to be reinitialized | |
1891 | every time the procedure is entered. The TREE_STATIC is | |
1892 | in this case due to -fmax-stack-var-size=. */ | |
2cc6320d | 1893 | |
597073ac | 1894 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2cc6320d JW |
1895 | TREE_TYPE (decl), sym->attr.dimension |
1896 | || (sym->attr.codimension | |
1897 | && sym->attr.allocatable), | |
1898 | sym->attr.pointer || sym->attr.allocatable | |
1899 | || sym->ts.type == BT_CLASS, | |
1900 | sym->attr.proc_pointer); | |
597073ac PB |
1901 | } |
1902 | ||
77f2a970 JJ |
1903 | if (!TREE_STATIC (decl) |
1904 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1905 | && !sym->attr.pointer | |
1906 | && !sym->attr.allocatable | |
b3996898 JJ |
1907 | && !sym->attr.proc_pointer |
1908 | && !sym->attr.select_type_temporary) | |
77f2a970 JJ |
1909 | DECL_BY_REFERENCE (decl) = 1; |
1910 | ||
92d28cbb JJ |
1911 | if (sym->attr.associate_var) |
1912 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1913 | ||
3aad513c TK |
1914 | /* We no longer mark __def_init as read-only so it does not take up |
1915 | space in the read-only section and dan go into the BSS instead, | |
1916 | see PR 84487. Marking this as artificial means that OpenMP will | |
1917 | treat this as predetermined shared. */ | |
cf651ca2 | 1918 | if (sym->attr.vtab |
2eb3745a | 1919 | || (sym->name[0] == '_' && gfc_str_startswith (sym->name, "__def_init"))) |
3aad513c | 1920 | DECL_ARTIFICIAL (decl) = 1; |
cf651ca2 | 1921 | |
6de9cd9a DN |
1922 | return decl; |
1923 | } | |
1924 | ||
1925 | ||
7b5b57b7 PB |
1926 | /* Substitute a temporary variable in place of the real one. */ |
1927 | ||
1928 | void | |
1929 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1930 | { | |
1931 | save->attr = sym->attr; | |
1932 | save->decl = sym->backend_decl; | |
1933 | ||
1934 | gfc_clear_attr (&sym->attr); | |
1935 | sym->attr.referenced = 1; | |
1936 | sym->attr.flavor = FL_VARIABLE; | |
1937 | ||
1938 | sym->backend_decl = decl; | |
1939 | } | |
1940 | ||
1941 | ||
1942 | /* Restore the original variable. */ | |
1943 | ||
1944 | void | |
1945 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1946 | { | |
1947 | sym->attr = save->attr; | |
1948 | sym->backend_decl = save->decl; | |
1949 | } | |
1950 | ||
1951 | ||
8fb74da4 JW |
1952 | /* Declare a procedure pointer. */ |
1953 | ||
1954 | static tree | |
1955 | get_proc_pointer_decl (gfc_symbol *sym) | |
1956 | { | |
1957 | tree decl; | |
08a6b8e0 | 1958 | tree attributes; |
8fb74da4 | 1959 | |
5c6aa9a8 TK |
1960 | if (sym->module || sym->fn_result_spec) |
1961 | { | |
1962 | const char *name; | |
1963 | gfc_gsymbol *gsym; | |
1964 | ||
1965 | name = mangled_identifier (sym); | |
1966 | gsym = gfc_find_gsymbol (gfc_gsym_root, name); | |
1967 | if (gsym != NULL) | |
1968 | { | |
1969 | gfc_symbol *s; | |
1970 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1971 | if (s && s->backend_decl) | |
1972 | return s->backend_decl; | |
1973 | } | |
1974 | } | |
1975 | ||
8fb74da4 JW |
1976 | decl = sym->backend_decl; |
1977 | if (decl) | |
1978 | return decl; | |
1979 | ||
c2255bc4 AH |
1980 | decl = build_decl (input_location, |
1981 | VAR_DECL, get_identifier (sym->name), | |
8fb74da4 JW |
1982 | build_pointer_type (gfc_get_function_type (sym))); |
1983 | ||
5e4404b8 JW |
1984 | if (sym->module) |
1985 | { | |
1986 | /* Apply name mangling. */ | |
1987 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1988 | if (sym->attr.use_assoc) | |
1989 | DECL_IGNORED_P (decl) = 1; | |
1990 | } | |
8b704316 | 1991 | |
06c7153f TB |
1992 | if ((sym->ns->proc_name |
1993 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
8fb74da4 JW |
1994 | || sym->attr.contained) |
1995 | gfc_add_decl_to_function (decl); | |
6e0d2de7 | 1996 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
8fb74da4 JW |
1997 | gfc_add_decl_to_parent_function (decl); |
1998 | ||
1999 | sym->backend_decl = decl; | |
2000 | ||
6e0d2de7 JW |
2001 | /* If a variable is USE associated, it's always external. */ |
2002 | if (sym->attr.use_assoc) | |
2003 | { | |
2004 | DECL_EXTERNAL (decl) = 1; | |
2005 | TREE_PUBLIC (decl) = 1; | |
2006 | } | |
2007 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
2008 | { | |
2009 | /* This is the declaration of a module variable. */ | |
a56ea54a PT |
2010 | TREE_PUBLIC (decl) = 1; |
2011 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
2012 | { | |
2013 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
2014 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
2015 | } | |
6e0d2de7 JW |
2016 | TREE_STATIC (decl) = 1; |
2017 | } | |
2018 | ||
8fb74da4 JW |
2019 | if (!sym->attr.use_assoc |
2020 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
2021 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
2022 | TREE_STATIC (decl) = 1; | |
2023 | ||
2024 | if (TREE_STATIC (decl) && sym->value) | |
2025 | { | |
2026 | /* Add static initializer. */ | |
2027 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
1d0134b3 JW |
2028 | TREE_TYPE (decl), |
2029 | sym->attr.dimension, | |
2030 | false, true); | |
8fb74da4 JW |
2031 | } |
2032 | ||
a6c975bd JJ |
2033 | /* Handle threadprivate procedure pointers. */ |
2034 | if (sym->attr.threadprivate | |
2035 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
56363ffd | 2036 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
a6c975bd | 2037 | |
08a6b8e0 TB |
2038 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2039 | decl_attributes (&decl, attributes, 0); | |
2040 | ||
8fb74da4 JW |
2041 | return decl; |
2042 | } | |
2043 | ||
2044 | ||
6de9cd9a DN |
2045 | /* Get a basic decl for an external function. */ |
2046 | ||
2047 | tree | |
378f53c7 | 2048 | gfc_get_extern_function_decl (gfc_symbol * sym, gfc_actual_arglist *actual_args) |
6de9cd9a DN |
2049 | { |
2050 | tree type; | |
2051 | tree fndecl; | |
08a6b8e0 | 2052 | tree attributes; |
6de9cd9a DN |
2053 | gfc_expr e; |
2054 | gfc_intrinsic_sym *isym; | |
2055 | gfc_expr argexpr; | |
e6472bce | 2056 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
6de9cd9a DN |
2057 | tree name; |
2058 | tree mangled_name; | |
71a7778c | 2059 | gfc_gsymbol *gsym; |
6de9cd9a DN |
2060 | |
2061 | if (sym->backend_decl) | |
2062 | return sym->backend_decl; | |
2063 | ||
3d79abbd PB |
2064 | /* We should never be creating external decls for alternate entry points. |
2065 | The procedure may be an alternate entry point, but we don't want/need | |
2066 | to know that. */ | |
6e45f57b | 2067 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
3d79abbd | 2068 | |
8fb74da4 JW |
2069 | if (sym->attr.proc_pointer) |
2070 | return get_proc_pointer_decl (sym); | |
2071 | ||
71a7778c | 2072 | /* See if this is an external procedure from the same file. If so, |
55b9c612 TK |
2073 | return the backend_decl. If we are looking at a BIND(C) |
2074 | procedure and the symbol is not BIND(C), or vice versa, we | |
2075 | haven't found the right procedure. */ | |
2076 | ||
2077 | if (sym->binding_label) | |
2078 | { | |
2079 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label); | |
2080 | if (gsym && !gsym->bind_c) | |
2081 | gsym = NULL; | |
2082 | } | |
2083 | else | |
2084 | { | |
2085 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->name); | |
2086 | if (gsym && gsym->bind_c) | |
2087 | gsym = NULL; | |
2088 | } | |
71a7778c | 2089 | |
77f8682b TB |
2090 | if (gsym && !gsym->defined) |
2091 | gsym = NULL; | |
2092 | ||
2093 | /* This can happen because of C binding. */ | |
2094 | if (gsym && gsym->ns && gsym->ns->proc_name | |
2095 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
2096 | goto module_sym; | |
2097 | ||
9fa52231 TB |
2098 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
2099 | && !sym->backend_decl | |
2100 | && gsym && gsym->ns | |
2101 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
2102 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
71a7778c | 2103 | { |
fb55ca75 TB |
2104 | if (!gsym->ns->proc_name->backend_decl) |
2105 | { | |
2106 | /* By construction, the external function cannot be | |
2107 | a contained procedure. */ | |
2108 | locus old_loc; | |
fb55ca75 | 2109 | |
363aab21 | 2110 | gfc_save_backend_locus (&old_loc); |
af16bc76 | 2111 | push_cfun (NULL); |
fb55ca75 TB |
2112 | |
2113 | gfc_create_function_decl (gsym->ns, true); | |
2114 | ||
2115 | pop_cfun (); | |
363aab21 | 2116 | gfc_restore_backend_locus (&old_loc); |
fb55ca75 TB |
2117 | } |
2118 | ||
71a7778c PT |
2119 | /* If the namespace has entries, the proc_name is the |
2120 | entry master. Find the entry and use its backend_decl. | |
2121 | otherwise, use the proc_name backend_decl. */ | |
2122 | if (gsym->ns->entries) | |
2123 | { | |
2124 | gfc_entry_list *entry = gsym->ns->entries; | |
2125 | ||
2126 | for (; entry; entry = entry->next) | |
2127 | { | |
2128 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
2129 | { | |
2130 | sym->backend_decl = entry->sym->backend_decl; | |
2131 | break; | |
2132 | } | |
2133 | } | |
2134 | } | |
2135 | else | |
6a018495 | 2136 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
71a7778c PT |
2137 | |
2138 | if (sym->backend_decl) | |
6a018495 TB |
2139 | { |
2140 | /* Avoid problems of double deallocation of the backend declaration | |
2141 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
2142 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
2143 | sym->attr.use_assoc = 0; | |
2144 | ||
2145 | return sym->backend_decl; | |
2146 | } | |
71a7778c PT |
2147 | } |
2148 | ||
3af8d8cb PT |
2149 | /* See if this is a module procedure from the same file. If so, |
2150 | return the backend_decl. */ | |
2151 | if (sym->module) | |
2152 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
2153 | ||
77f8682b TB |
2154 | module_sym: |
2155 | if (gsym && gsym->ns | |
2156 | && (gsym->type == GSYM_MODULE | |
2157 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
3af8d8cb PT |
2158 | { |
2159 | gfc_symbol *s; | |
2160 | ||
2161 | s = NULL; | |
77f8682b TB |
2162 | if (gsym->type == GSYM_MODULE) |
2163 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
2164 | else | |
2165 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
2166 | ||
3af8d8cb PT |
2167 | if (s && s->backend_decl) |
2168 | { | |
f29bda83 TB |
2169 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
2170 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
2171 | true); | |
2172 | else if (sym->ts.type == BT_CHARACTER) | |
2173 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
3af8d8cb PT |
2174 | sym->backend_decl = s->backend_decl; |
2175 | return sym->backend_decl; | |
2176 | } | |
2177 | } | |
2178 | ||
6de9cd9a DN |
2179 | if (sym->attr.intrinsic) |
2180 | { | |
2181 | /* Call the resolution function to get the actual name. This is | |
2182 | a nasty hack which relies on the resolution functions only looking | |
2183 | at the first argument. We pass NULL for the second argument | |
2184 | otherwise things like AINT get confused. */ | |
2185 | isym = gfc_find_function (sym->name); | |
6e45f57b | 2186 | gcc_assert (isym->resolve.f0 != NULL); |
6de9cd9a DN |
2187 | |
2188 | memset (&e, 0, sizeof (e)); | |
2189 | e.expr_type = EXPR_FUNCTION; | |
2190 | ||
2191 | memset (&argexpr, 0, sizeof (argexpr)); | |
6e45f57b | 2192 | gcc_assert (isym->formal); |
6de9cd9a DN |
2193 | argexpr.ts = isym->formal->ts; |
2194 | ||
2195 | if (isym->formal->next == NULL) | |
2196 | isym->resolve.f1 (&e, &argexpr); | |
2197 | else | |
2198 | { | |
0e7e7e6e FXC |
2199 | if (isym->formal->next->next == NULL) |
2200 | isym->resolve.f2 (&e, &argexpr, NULL); | |
2201 | else | |
2202 | { | |
5cda5098 FXC |
2203 | if (isym->formal->next->next->next == NULL) |
2204 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
2205 | else | |
2206 | { | |
2207 | /* All specific intrinsics take less than 5 arguments. */ | |
2208 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
2209 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
2210 | } | |
0e7e7e6e | 2211 | } |
6de9cd9a | 2212 | } |
973ff4c0 | 2213 | |
c61819ff | 2214 | if (flag_f2c |
973ff4c0 TS |
2215 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
2216 | || e.ts.type == BT_COMPLEX)) | |
2217 | { | |
2218 | /* Specific which needs a different implementation if f2c | |
2219 | calling conventions are used. */ | |
e6472bce | 2220 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
973ff4c0 TS |
2221 | } |
2222 | else | |
e6472bce | 2223 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
973ff4c0 | 2224 | |
6de9cd9a DN |
2225 | name = get_identifier (s); |
2226 | mangled_name = name; | |
2227 | } | |
2228 | else | |
2229 | { | |
2230 | name = gfc_sym_identifier (sym); | |
2231 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2232 | } | |
2233 | ||
378f53c7 | 2234 | type = gfc_get_function_type (sym, actual_args); |
c2255bc4 AH |
2235 | fndecl = build_decl (input_location, |
2236 | FUNCTION_DECL, name, type); | |
6de9cd9a | 2237 | |
384f586a KT |
2238 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2239 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
dd5a833e | 2240 | the opposite of declaring a function as static in C). */ |
384f586a KT |
2241 | DECL_EXTERNAL (fndecl) = 1; |
2242 | TREE_PUBLIC (fndecl) = 1; | |
2243 | ||
43ce5e52 FXC |
2244 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2245 | decl_attributes (&fndecl, attributes, 0); | |
2246 | ||
2247 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
6de9cd9a DN |
2248 | |
2249 | /* Set the context of this decl. */ | |
2250 | if (0 && sym->ns && sym->ns->proc_name) | |
2251 | { | |
2252 | /* TODO: Add external decls to the appropriate scope. */ | |
2253 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2254 | } | |
2255 | else | |
2256 | { | |
f8d0aee5 | 2257 | /* Global declaration, e.g. intrinsic subroutine. */ |
6de9cd9a DN |
2258 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2259 | } | |
2260 | ||
6de9cd9a DN |
2261 | /* Set attributes for PURE functions. A call to PURE function in the |
2262 | Fortran 95 sense is both pure and without side effects in the C | |
2263 | sense. */ | |
033418dc | 2264 | if (sym->attr.pure || sym->attr.implicit_pure) |
6de9cd9a | 2265 | { |
cf013e9f | 2266 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
becfd6e5 | 2267 | DECL_PURE_P (fndecl) = 1; |
b7e6a6b3 TS |
2268 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2269 | parameters and don't use alternate returns (is this | |
2270 | allowed?). In that case, calls to them are meaningless, and | |
3d79abbd | 2271 | can be optimized away. See also in build_function_decl(). */ |
b7e6a6b3 | 2272 | TREE_SIDE_EFFECTS (fndecl) = 0; |
6de9cd9a DN |
2273 | } |
2274 | ||
fe58e076 TK |
2275 | /* Mark non-returning functions. */ |
2276 | if (sym->attr.noreturn) | |
2277 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2278 | ||
6de9cd9a DN |
2279 | sym->backend_decl = fndecl; |
2280 | ||
2281 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2282 | pushdecl_top_level (fndecl); | |
2283 | ||
dd2fc525 JJ |
2284 | if (sym->formal_ns |
2285 | && sym->formal_ns->proc_name == sym | |
2286 | && sym->formal_ns->omp_declare_simd) | |
2287 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2288 | ||
6de9cd9a DN |
2289 | return fndecl; |
2290 | } | |
2291 | ||
2292 | ||
2293 | /* Create a declaration for a procedure. For external functions (in the C | |
3d79abbd PB |
2294 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2295 | a master function with alternate entry points. */ | |
6de9cd9a | 2296 | |
3d79abbd | 2297 | static void |
fb55ca75 | 2298 | build_function_decl (gfc_symbol * sym, bool global) |
6de9cd9a | 2299 | { |
08a6b8e0 | 2300 | tree fndecl, type, attributes; |
6de9cd9a | 2301 | symbol_attribute attr; |
3d79abbd | 2302 | tree result_decl; |
6de9cd9a DN |
2303 | gfc_formal_arglist *f; |
2304 | ||
70112e2a PT |
2305 | bool module_procedure = sym->attr.module_procedure |
2306 | && sym->ns | |
2307 | && sym->ns->proc_name | |
2308 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2309 | ||
2310 | gcc_assert (!sym->attr.external || module_procedure); | |
6de9cd9a | 2311 | |
1d0134b3 JW |
2312 | if (sym->backend_decl) |
2313 | return; | |
2314 | ||
c8cc8542 PB |
2315 | /* Set the line and filename. sym->declared_at seems to point to the |
2316 | last statement for subroutines, but it'll do for now. */ | |
2317 | gfc_set_backend_locus (&sym->declared_at); | |
2318 | ||
6de9cd9a | 2319 | /* Allow only one nesting level. Allow public declarations. */ |
6e45f57b | 2320 | gcc_assert (current_function_decl == NULL_TREE |
e5b16755 RG |
2321 | || DECL_FILE_SCOPE_P (current_function_decl) |
2322 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2323 | == NAMESPACE_DECL)); | |
6de9cd9a DN |
2324 | |
2325 | type = gfc_get_function_type (sym); | |
c2255bc4 AH |
2326 | fndecl = build_decl (input_location, |
2327 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
6de9cd9a | 2328 | |
43ce5e52 FXC |
2329 | attr = sym->attr; |
2330 | ||
384f586a KT |
2331 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2332 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
dd5a833e | 2333 | the opposite of declaring a function as static in C). */ |
384f586a KT |
2334 | DECL_EXTERNAL (fndecl) = 0; |
2335 | ||
58341a42 TB |
2336 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2337 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2338 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
c61819ff | 2339 | && flag_module_private))) |
58341a42 TB |
2340 | sym->attr.access = ACCESS_PRIVATE; |
2341 | ||
384f586a | 2342 | if (!current_function_decl |
5af6fa0b | 2343 | && !sym->attr.entry_master && !sym->attr.is_main_program |
cdd244b8 TB |
2344 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2345 | || sym->attr.public_used)) | |
384f586a KT |
2346 | TREE_PUBLIC (fndecl) = 1; |
2347 | ||
29be7510 JW |
2348 | if (sym->attr.referenced || sym->attr.entry_master) |
2349 | TREE_USED (fndecl) = 1; | |
2350 | ||
43ce5e52 FXC |
2351 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2352 | decl_attributes (&fndecl, attributes, 0); | |
2353 | ||
6de9cd9a | 2354 | /* Figure out the return type of the declared function, and build a |
f8d0aee5 | 2355 | RESULT_DECL for it. If this is a subroutine with alternate |
6de9cd9a | 2356 | returns, build a RESULT_DECL for it. */ |
6de9cd9a DN |
2357 | result_decl = NULL_TREE; |
2358 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2359 | if (attr.function) | |
2360 | { | |
2361 | if (gfc_return_by_reference (sym)) | |
2362 | type = void_type_node; | |
2363 | else | |
2364 | { | |
2365 | if (sym->result != sym) | |
2366 | result_decl = gfc_sym_identifier (sym->result); | |
2367 | ||
2368 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2369 | } | |
2370 | } | |
2371 | else | |
2372 | { | |
2373 | /* Look for alternate return placeholders. */ | |
2374 | int has_alternate_returns = 0; | |
4cbc9039 | 2375 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
6de9cd9a DN |
2376 | { |
2377 | if (f->sym == NULL) | |
2378 | { | |
2379 | has_alternate_returns = 1; | |
2380 | break; | |
2381 | } | |
2382 | } | |
2383 | ||
2384 | if (has_alternate_returns) | |
2385 | type = integer_type_node; | |
2386 | else | |
2387 | type = void_type_node; | |
2388 | } | |
2389 | ||
c2255bc4 AH |
2390 | result_decl = build_decl (input_location, |
2391 | RESULT_DECL, result_decl, type); | |
b785f485 RH |
2392 | DECL_ARTIFICIAL (result_decl) = 1; |
2393 | DECL_IGNORED_P (result_decl) = 1; | |
6de9cd9a DN |
2394 | DECL_CONTEXT (result_decl) = fndecl; |
2395 | DECL_RESULT (fndecl) = result_decl; | |
2396 | ||
2397 | /* Don't call layout_decl for a RESULT_DECL. | |
f8d0aee5 | 2398 | layout_decl (result_decl, 0); */ |
6de9cd9a | 2399 | |
6de9cd9a | 2400 | /* TREE_STATIC means the function body is defined here. */ |
1d754240 | 2401 | TREE_STATIC (fndecl) = 1; |
6de9cd9a | 2402 | |
f8d0aee5 | 2403 | /* Set attributes for PURE functions. A call to a PURE function in the |
6de9cd9a DN |
2404 | Fortran 95 sense is both pure and without side effects in the C |
2405 | sense. */ | |
033418dc | 2406 | if (attr.pure || attr.implicit_pure) |
6de9cd9a | 2407 | { |
b7e6a6b3 | 2408 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
86bf520d | 2409 | including an alternate return. In that case it can also be |
1f2959f0 | 2410 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
a01db3bf | 2411 | if (attr.function && !gfc_return_by_reference (sym)) |
becfd6e5 | 2412 | DECL_PURE_P (fndecl) = 1; |
6de9cd9a DN |
2413 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2414 | } | |
2415 | ||
08a6b8e0 | 2416 | |
6de9cd9a DN |
2417 | /* Layout the function declaration and put it in the binding level |
2418 | of the current function. */ | |
fb55ca75 | 2419 | |
755634e6 | 2420 | if (global) |
fb55ca75 TB |
2421 | pushdecl_top_level (fndecl); |
2422 | else | |
2423 | pushdecl (fndecl); | |
3d79abbd | 2424 | |
e5b16755 RG |
2425 | /* Perform name mangling if this is a top level or module procedure. */ |
2426 | if (current_function_decl == NULL_TREE) | |
2427 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2428 | ||
3d79abbd PB |
2429 | sym->backend_decl = fndecl; |
2430 | } | |
2431 | ||
2432 | ||
2433 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2434 | ||
2435 | static void | |
2436 | create_function_arglist (gfc_symbol * sym) | |
2437 | { | |
2438 | tree fndecl; | |
2439 | gfc_formal_arglist *f; | |
417ab240 JJ |
2440 | tree typelist, hidden_typelist; |
2441 | tree arglist, hidden_arglist; | |
3d79abbd PB |
2442 | tree type; |
2443 | tree parm; | |
2444 | ||
2445 | fndecl = sym->backend_decl; | |
2446 | ||
1d754240 PB |
2447 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2448 | the new FUNCTION_DECL node. */ | |
1d754240 | 2449 | arglist = NULL_TREE; |
417ab240 | 2450 | hidden_arglist = NULL_TREE; |
1d754240 | 2451 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
3d79abbd PB |
2452 | |
2453 | if (sym->attr.entry_master) | |
2454 | { | |
2455 | type = TREE_VALUE (typelist); | |
c2255bc4 AH |
2456 | parm = build_decl (input_location, |
2457 | PARM_DECL, get_identifier ("__entry"), type); | |
8b704316 | 2458 | |
3d79abbd PB |
2459 | DECL_CONTEXT (parm) = fndecl; |
2460 | DECL_ARG_TYPE (parm) = type; | |
2461 | TREE_READONLY (parm) = 1; | |
faf28b3a | 2462 | gfc_finish_decl (parm); |
3e978d30 | 2463 | DECL_ARTIFICIAL (parm) = 1; |
3d79abbd PB |
2464 | |
2465 | arglist = chainon (arglist, parm); | |
2466 | typelist = TREE_CHAIN (typelist); | |
2467 | } | |
2468 | ||
1d754240 | 2469 | if (gfc_return_by_reference (sym)) |
6de9cd9a | 2470 | { |
417ab240 | 2471 | tree type = TREE_VALUE (typelist), length = NULL; |
6de9cd9a | 2472 | |
1d754240 PB |
2473 | if (sym->ts.type == BT_CHARACTER) |
2474 | { | |
1d754240 | 2475 | /* Length of character result. */ |
417ab240 | 2476 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
6de9cd9a | 2477 | |
c2255bc4 AH |
2478 | length = build_decl (input_location, |
2479 | PARM_DECL, | |
1d754240 | 2480 | get_identifier (".__result"), |
417ab240 | 2481 | len_type); |
ce1ff48e PT |
2482 | if (POINTER_TYPE_P (len_type)) |
2483 | { | |
2484 | sym->ts.u.cl->passed_length = length; | |
2485 | TREE_USED (length) = 1; | |
2486 | } | |
2487 | else if (!sym->ts.u.cl->length) | |
1d754240 | 2488 | { |
bc21d315 | 2489 | sym->ts.u.cl->backend_decl = length; |
1d754240 | 2490 | TREE_USED (length) = 1; |
6de9cd9a | 2491 | } |
6e45f57b | 2492 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
1d754240 | 2493 | DECL_CONTEXT (length) = fndecl; |
417ab240 | 2494 | DECL_ARG_TYPE (length) = len_type; |
1d754240 | 2495 | TREE_READONLY (length) = 1; |
ca0e9281 | 2496 | DECL_ARTIFICIAL (length) = 1; |
faf28b3a | 2497 | gfc_finish_decl (length); |
bc21d315 JW |
2498 | if (sym->ts.u.cl->backend_decl == NULL |
2499 | || sym->ts.u.cl->backend_decl == length) | |
417ab240 JJ |
2500 | { |
2501 | gfc_symbol *arg; | |
2502 | tree backend_decl; | |
6de9cd9a | 2503 | |
bc21d315 | 2504 | if (sym->ts.u.cl->backend_decl == NULL) |
417ab240 | 2505 | { |
c2255bc4 AH |
2506 | tree len = build_decl (input_location, |
2507 | VAR_DECL, | |
417ab240 JJ |
2508 | get_identifier ("..__result"), |
2509 | gfc_charlen_type_node); | |
2510 | DECL_ARTIFICIAL (len) = 1; | |
2511 | TREE_USED (len) = 1; | |
bc21d315 | 2512 | sym->ts.u.cl->backend_decl = len; |
417ab240 | 2513 | } |
6de9cd9a | 2514 | |
417ab240 JJ |
2515 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2516 | arg = sym->result ? sym->result : sym; | |
2517 | backend_decl = arg->backend_decl; | |
2518 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2519 | type. */ | |
2520 | arg->backend_decl = NULL; | |
2521 | type = gfc_sym_type (arg); | |
2522 | arg->backend_decl = backend_decl; | |
2523 | type = build_reference_type (type); | |
2524 | } | |
2525 | } | |
6de9cd9a | 2526 | |
c2255bc4 AH |
2527 | parm = build_decl (input_location, |
2528 | PARM_DECL, get_identifier ("__result"), type); | |
6de9cd9a | 2529 | |
417ab240 JJ |
2530 | DECL_CONTEXT (parm) = fndecl; |
2531 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2532 | TREE_READONLY (parm) = 1; | |
2533 | DECL_ARTIFICIAL (parm) = 1; | |
faf28b3a | 2534 | gfc_finish_decl (parm); |
6de9cd9a | 2535 | |
417ab240 JJ |
2536 | arglist = chainon (arglist, parm); |
2537 | typelist = TREE_CHAIN (typelist); | |
6de9cd9a | 2538 | |
417ab240 JJ |
2539 | if (sym->ts.type == BT_CHARACTER) |
2540 | { | |
2541 | gfc_allocate_lang_decl (parm); | |
2542 | arglist = chainon (arglist, length); | |
1d754240 PB |
2543 | typelist = TREE_CHAIN (typelist); |
2544 | } | |
2545 | } | |
6de9cd9a | 2546 | |
417ab240 | 2547 | hidden_typelist = typelist; |
4cbc9039 | 2548 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
417ab240 JJ |
2549 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2550 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2551 | ||
4cbc9039 | 2552 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
1d754240 PB |
2553 | { |
2554 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
417ab240 | 2555 | |
1d754240 PB |
2556 | /* Ignore alternate returns. */ |
2557 | if (f->sym == NULL) | |
2558 | continue; | |
6de9cd9a | 2559 | |
1d754240 | 2560 | type = TREE_VALUE (typelist); |
6de9cd9a | 2561 | |
33215bb3 TB |
2562 | if (f->sym->ts.type == BT_CHARACTER |
2563 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
417ab240 JJ |
2564 | { |
2565 | tree len_type = TREE_VALUE (hidden_typelist); | |
2566 | tree length = NULL_TREE; | |
8d51f26f PT |
2567 | if (!f->sym->ts.deferred) |
2568 | gcc_assert (len_type == gfc_charlen_type_node); | |
2569 | else | |
2570 | gcc_assert (POINTER_TYPE_P (len_type)); | |
417ab240 JJ |
2571 | |
2572 | strcpy (&name[1], f->sym->name); | |
2573 | name[0] = '_'; | |
c2255bc4 AH |
2574 | length = build_decl (input_location, |
2575 | PARM_DECL, get_identifier (name), len_type); | |
6de9cd9a | 2576 | |
417ab240 JJ |
2577 | hidden_arglist = chainon (hidden_arglist, length); |
2578 | DECL_CONTEXT (length) = fndecl; | |
2579 | DECL_ARTIFICIAL (length) = 1; | |
2580 | DECL_ARG_TYPE (length) = len_type; | |
2581 | TREE_READONLY (length) = 1; | |
faf28b3a | 2582 | gfc_finish_decl (length); |
14688b8d TK |
2583 | |
2584 | /* Marking the length DECL_HIDDEN_STRING_LENGTH will lead | |
2585 | to tail calls being disabled. Only do that if we | |
2586 | potentially have broken callers. */ | |
ffeebc4f JJ |
2587 | if (flag_tail_call_workaround |
2588 | && f->sym->ts.u.cl | |
4b8e35f1 | 2589 | && f->sym->ts.u.cl->length |
ffeebc4f JJ |
2590 | && f->sym->ts.u.cl->length->expr_type == EXPR_CONSTANT |
2591 | && (flag_tail_call_workaround == 2 | |
2592 | || f->sym->ns->implicit_interface_calls)) | |
4b8e35f1 | 2593 | DECL_HIDDEN_STRING_LENGTH (length) = 1; |
6de9cd9a | 2594 | |
cadb8f42 | 2595 | /* Remember the passed value. */ |
8b704316 | 2596 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
3ba558db TB |
2597 | { |
2598 | /* This can happen if the same type is used for multiple | |
2599 | arguments. We need to copy cl as otherwise | |
2600 | cl->passed_length gets overwritten. */ | |
b76e28c6 | 2601 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
3ba558db | 2602 | } |
bc21d315 | 2603 | f->sym->ts.u.cl->passed_length = length; |
6de9cd9a | 2604 | |
417ab240 | 2605 | /* Use the passed value for assumed length variables. */ |
bc21d315 | 2606 | if (!f->sym->ts.u.cl->length) |
6de9cd9a | 2607 | { |
417ab240 | 2608 | TREE_USED (length) = 1; |
bc21d315 JW |
2609 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2610 | f->sym->ts.u.cl->backend_decl = length; | |
417ab240 JJ |
2611 | } |
2612 | ||
2613 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2614 | ||
bc21d315 JW |
2615 | if (f->sym->ts.u.cl->backend_decl == NULL |
2616 | || f->sym->ts.u.cl->backend_decl == length) | |
417ab240 | 2617 | { |
afbc5ae8 PT |
2618 | if (POINTER_TYPE_P (len_type)) |
2619 | f->sym->ts.u.cl->backend_decl = | |
2620 | build_fold_indirect_ref_loc (input_location, length); | |
2621 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
417ab240 JJ |
2622 | gfc_create_string_length (f->sym); |
2623 | ||
2624 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2625 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2626 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2627 | else | |
2628 | type = gfc_sym_type (f->sym); | |
6de9cd9a | 2629 | } |
6de9cd9a | 2630 | } |
60f97ac8 | 2631 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
9b110be2 | 2632 | hence, the optional status cannot be transferred via a NULL pointer. |
60f97ac8 TB |
2633 | Thus, we will use a hidden argument in that case. */ |
2634 | else if (f->sym->attr.optional && f->sym->attr.value | |
adede54c | 2635 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
f6288c24 | 2636 | && !gfc_bt_struct (f->sym->ts.type)) |
60f97ac8 TB |
2637 | { |
2638 | tree tmp; | |
2639 | strcpy (&name[1], f->sym->name); | |
2640 | name[0] = '_'; | |
2641 | tmp = build_decl (input_location, | |
2642 | PARM_DECL, get_identifier (name), | |
2643 | boolean_type_node); | |
2644 | ||
2645 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2646 | DECL_CONTEXT (tmp) = fndecl; | |
2647 | DECL_ARTIFICIAL (tmp) = 1; | |
2648 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2649 | TREE_READONLY (tmp) = 1; | |
2650 | gfc_finish_decl (tmp); | |
2651 | } | |
6de9cd9a | 2652 | |
417ab240 JJ |
2653 | /* For non-constant length array arguments, make sure they use |
2654 | a different type node from TYPE_ARG_TYPES type. */ | |
2655 | if (f->sym->attr.dimension | |
2656 | && type == TREE_VALUE (typelist) | |
2657 | && TREE_CODE (type) == POINTER_TYPE | |
2658 | && GFC_ARRAY_TYPE_P (type) | |
2659 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2660 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2661 | { | |
2662 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2663 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2664 | else | |
2665 | type = gfc_sym_type (f->sym); | |
2666 | } | |
2667 | ||
8fb74da4 JW |
2668 | if (f->sym->attr.proc_pointer) |
2669 | type = build_pointer_type (type); | |
2670 | ||
c28d1d9b TB |
2671 | if (f->sym->attr.volatile_) |
2672 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2673 | ||
df2fba9e | 2674 | /* Build the argument declaration. */ |
c2255bc4 AH |
2675 | parm = build_decl (input_location, |
2676 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
417ab240 | 2677 | |
c28d1d9b TB |
2678 | if (f->sym->attr.volatile_) |
2679 | { | |
2680 | TREE_THIS_VOLATILE (parm) = 1; | |
2681 | TREE_SIDE_EFFECTS (parm) = 1; | |
2682 | } | |
2683 | ||
417ab240 JJ |
2684 | /* Fill in arg stuff. */ |
2685 | DECL_CONTEXT (parm) = fndecl; | |
2686 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
31ec3535 JJ |
2687 | /* All implementation args except for VALUE are read-only. */ |
2688 | if (!f->sym->attr.value) | |
2689 | TREE_READONLY (parm) = 1; | |
714495cd JJ |
2690 | if (POINTER_TYPE_P (type) |
2691 | && (!f->sym->attr.proc_pointer | |
2692 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2693 | DECL_BY_REFERENCE (parm) = 1; | |
08c14aaa | 2694 | if (f->sym->attr.optional && !f->sym->attr.value) |
73a28634 | 2695 | { |
08c14aaa | 2696 | /* With value, the argument is passed as is. */ |
73a28634 KCY |
2697 | gfc_allocate_lang_decl (parm); |
2698 | GFC_DECL_OPTIONAL_ARGUMENT (parm) = 1; | |
2699 | } | |
417ab240 | 2700 | |
faf28b3a | 2701 | gfc_finish_decl (parm); |
92d28cbb | 2702 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
417ab240 JJ |
2703 | |
2704 | f->sym->backend_decl = parm; | |
2705 | ||
aa13dc3c TB |
2706 | /* Coarrays which are descriptorless or assumed-shape pass with |
2707 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
f19626cf | 2708 | if (flag_coarray == GFC_FCOARRAY_LIB |
598cc4fa TB |
2709 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2710 | && !f->sym->attr.allocatable) | |
2711 | || (f->sym->ts.type == BT_CLASS | |
2712 | && CLASS_DATA (f->sym)->attr.codimension | |
2713 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
0c53708e TB |
2714 | { |
2715 | tree caf_type; | |
2716 | tree token; | |
2717 | tree offset; | |
2718 | ||
2719 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2720 | && !sym->attr.is_bind_c); | |
598cc4fa TB |
2721 | caf_type = f->sym->ts.type == BT_CLASS |
2722 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2723 | : TREE_TYPE (f->sym->backend_decl); | |
0c53708e | 2724 | |
0c53708e TB |
2725 | token = build_decl (input_location, PARM_DECL, |
2726 | create_tmp_var_name ("caf_token"), | |
2727 | build_qualified_type (pvoid_type_node, | |
2728 | TYPE_QUAL_RESTRICT)); | |
598cc4fa TB |
2729 | if ((f->sym->ts.type != BT_CLASS |
2730 | && f->sym->as->type != AS_DEFERRED) | |
2731 | || (f->sym->ts.type == BT_CLASS | |
2732 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
aa13dc3c TB |
2733 | { |
2734 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2735 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2736 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2737 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2738 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2739 | } | |
2740 | else | |
2741 | { | |
2742 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2743 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2744 | } | |
8b704316 | 2745 | |
0c53708e TB |
2746 | DECL_CONTEXT (token) = fndecl; |
2747 | DECL_ARTIFICIAL (token) = 1; | |
2748 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2749 | TREE_READONLY (token) = 1; | |
2750 | hidden_arglist = chainon (hidden_arglist, token); | |
2751 | gfc_finish_decl (token); | |
2752 | ||
0c53708e TB |
2753 | offset = build_decl (input_location, PARM_DECL, |
2754 | create_tmp_var_name ("caf_offset"), | |
2755 | gfc_array_index_type); | |
2756 | ||
598cc4fa TB |
2757 | if ((f->sym->ts.type != BT_CLASS |
2758 | && f->sym->as->type != AS_DEFERRED) | |
2759 | || (f->sym->ts.type == BT_CLASS | |
2760 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
aa13dc3c TB |
2761 | { |
2762 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2763 | == NULL_TREE); | |
2764 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2765 | } | |
2766 | else | |
2767 | { | |
2768 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2769 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2770 | } | |
0c53708e TB |
2771 | DECL_CONTEXT (offset) = fndecl; |
2772 | DECL_ARTIFICIAL (offset) = 1; | |
2773 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2774 | TREE_READONLY (offset) = 1; | |
2775 | hidden_arglist = chainon (hidden_arglist, offset); | |
2776 | gfc_finish_decl (offset); | |
2777 | } | |
2778 | ||
417ab240 | 2779 | arglist = chainon (arglist, parm); |
1d754240 | 2780 | typelist = TREE_CHAIN (typelist); |
6de9cd9a | 2781 | } |
1d754240 | 2782 | |
7861a5ce TB |
2783 | /* Add the hidden string length parameters, unless the procedure |
2784 | is bind(C). */ | |
2785 | if (!sym->attr.is_bind_c) | |
2786 | arglist = chainon (arglist, hidden_arglist); | |
417ab240 | 2787 | |
884d2e6b SE |
2788 | gcc_assert (hidden_typelist == NULL_TREE |
2789 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
1d754240 | 2790 | DECL_ARGUMENTS (fndecl) = arglist; |
3d79abbd | 2791 | } |
1d754240 | 2792 | |
3d79abbd PB |
2793 | /* Do the setup necessary before generating the body of a function. */ |
2794 | ||
2795 | static void | |
2796 | trans_function_start (gfc_symbol * sym) | |
2797 | { | |
2798 | tree fndecl; | |
2799 | ||
2800 | fndecl = sym->backend_decl; | |
2801 | ||
f8d0aee5 | 2802 | /* Let GCC know the current scope is this function. */ |
3d79abbd PB |
2803 | current_function_decl = fndecl; |
2804 | ||
f8d0aee5 | 2805 | /* Let the world know what we're about to do. */ |
3d79abbd PB |
2806 | announce_function (fndecl); |
2807 | ||
e5b16755 | 2808 | if (DECL_FILE_SCOPE_P (fndecl)) |
3d79abbd | 2809 | { |
f8d0aee5 | 2810 | /* Create RTL for function declaration. */ |
3d79abbd PB |
2811 | rest_of_decl_compilation (fndecl, 1, 0); |
2812 | } | |
2813 | ||
f8d0aee5 | 2814 | /* Create RTL for function definition. */ |
3d79abbd PB |
2815 | make_decl_rtl (fndecl); |
2816 | ||
b6b27e98 | 2817 | allocate_struct_function (fndecl, false); |
3d79abbd | 2818 | |
f8d0aee5 | 2819 | /* function.c requires a push at the start of the function. */ |
87a60f68 | 2820 | pushlevel (); |
3d79abbd PB |
2821 | } |
2822 | ||
2823 | /* Create thunks for alternate entry points. */ | |
2824 | ||
2825 | static void | |
fb55ca75 | 2826 | build_entry_thunks (gfc_namespace * ns, bool global) |
3d79abbd PB |
2827 | { |
2828 | gfc_formal_arglist *formal; | |
2829 | gfc_formal_arglist *thunk_formal; | |
2830 | gfc_entry_list *el; | |
2831 | gfc_symbol *thunk_sym; | |
2832 | stmtblock_t body; | |
2833 | tree thunk_fndecl; | |
3d79abbd | 2834 | tree tmp; |
c8cc8542 | 2835 | locus old_loc; |
3d79abbd PB |
2836 | |
2837 | /* This should always be a toplevel function. */ | |
6e45f57b | 2838 | gcc_assert (current_function_decl == NULL_TREE); |
3d79abbd | 2839 | |
363aab21 | 2840 | gfc_save_backend_locus (&old_loc); |
3d79abbd PB |
2841 | for (el = ns->entries; el; el = el->next) |
2842 | { | |
9771b263 DN |
2843 | vec<tree, va_gc> *args = NULL; |
2844 | vec<tree, va_gc> *string_args = NULL; | |
3bb06db4 | 2845 | |
3d79abbd | 2846 | thunk_sym = el->sym; |
8b704316 | 2847 | |
fb55ca75 | 2848 | build_function_decl (thunk_sym, global); |
3d79abbd PB |
2849 | create_function_arglist (thunk_sym); |
2850 | ||
2851 | trans_function_start (thunk_sym); | |
2852 | ||
2853 | thunk_fndecl = thunk_sym->backend_decl; | |
2854 | ||
c7c79a09 | 2855 | gfc_init_block (&body); |
3d79abbd | 2856 | |
f8d0aee5 | 2857 | /* Pass extra parameter identifying this entry point. */ |
7d60be94 | 2858 | tmp = build_int_cst (gfc_array_index_type, el->id); |
9771b263 | 2859 | vec_safe_push (args, tmp); |
3d79abbd | 2860 | |
d198b59a JJ |
2861 | if (thunk_sym->attr.function) |
2862 | { | |
2863 | if (gfc_return_by_reference (ns->proc_name)) | |
2864 | { | |
2865 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
9771b263 | 2866 | vec_safe_push (args, ref); |
d198b59a | 2867 | if (ns->proc_name->ts.type == BT_CHARACTER) |
9771b263 | 2868 | vec_safe_push (args, DECL_CHAIN (ref)); |
d198b59a JJ |
2869 | } |
2870 | } | |
2871 | ||
4cbc9039 JW |
2872 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2873 | formal = formal->next) | |
3d79abbd | 2874 | { |
d198b59a JJ |
2875 | /* Ignore alternate returns. */ |
2876 | if (formal->sym == NULL) | |
2877 | continue; | |
2878 | ||
3d79abbd PB |
2879 | /* We don't have a clever way of identifying arguments, so resort to |
2880 | a brute-force search. */ | |
4cbc9039 | 2881 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
3d79abbd PB |
2882 | thunk_formal; |
2883 | thunk_formal = thunk_formal->next) | |
2884 | { | |
2885 | if (thunk_formal->sym == formal->sym) | |
2886 | break; | |
2887 | } | |
2888 | ||
2889 | if (thunk_formal) | |
2890 | { | |
2891 | /* Pass the argument. */ | |
3e978d30 | 2892 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
9771b263 | 2893 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
3d79abbd PB |
2894 | if (formal->sym->ts.type == BT_CHARACTER) |
2895 | { | |
bc21d315 | 2896 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
9771b263 | 2897 | vec_safe_push (string_args, tmp); |
3d79abbd PB |
2898 | } |
2899 | } | |
2900 | else | |
2901 | { | |
2902 | /* Pass NULL for a missing argument. */ | |
9771b263 | 2903 | vec_safe_push (args, null_pointer_node); |
3d79abbd PB |
2904 | if (formal->sym->ts.type == BT_CHARACTER) |
2905 | { | |
c3238e32 | 2906 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
9771b263 | 2907 | vec_safe_push (string_args, tmp); |
3d79abbd PB |
2908 | } |
2909 | } | |
2910 | } | |
2911 | ||
2912 | /* Call the master function. */ | |
9771b263 | 2913 | vec_safe_splice (args, string_args); |
3d79abbd | 2914 | tmp = ns->proc_name->backend_decl; |
3bb06db4 | 2915 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
d198b59a JJ |
2916 | if (ns->proc_name->attr.mixed_entry_master) |
2917 | { | |
2918 | tree union_decl, field; | |
2919 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2920 | ||
c2255bc4 AH |
2921 | union_decl = build_decl (input_location, |
2922 | VAR_DECL, get_identifier ("__result"), | |
d198b59a JJ |
2923 | TREE_TYPE (master_type)); |
2924 | DECL_ARTIFICIAL (union_decl) = 1; | |
2925 | DECL_EXTERNAL (union_decl) = 0; | |
2926 | TREE_PUBLIC (union_decl) = 0; | |
2927 | TREE_USED (union_decl) = 1; | |
2928 | layout_decl (union_decl, 0); | |
2929 | pushdecl (union_decl); | |
2930 | ||
2931 | DECL_CONTEXT (union_decl) = current_function_decl; | |
bc98ed60 TB |
2932 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2933 | TREE_TYPE (union_decl), union_decl, tmp); | |
d198b59a JJ |
2934 | gfc_add_expr_to_block (&body, tmp); |
2935 | ||
2936 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
910ad8de | 2937 | field; field = DECL_CHAIN (field)) |
d198b59a JJ |
2938 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2939 | thunk_sym->result->name) == 0) | |
2940 | break; | |
2941 | gcc_assert (field != NULL_TREE); | |
bc98ed60 TB |
2942 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2943 | TREE_TYPE (field), union_decl, field, | |
2944 | NULL_TREE); | |
8b704316 | 2945 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
44855d8c TS |
2946 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2947 | DECL_RESULT (current_function_decl), tmp); | |
d198b59a JJ |
2948 | tmp = build1_v (RETURN_EXPR, tmp); |
2949 | } | |
2950 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2951 | != void_type_node) | |
2952 | { | |
bc98ed60 | 2953 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
44855d8c TS |
2954 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2955 | DECL_RESULT (current_function_decl), tmp); | |
d198b59a JJ |
2956 | tmp = build1_v (RETURN_EXPR, tmp); |
2957 | } | |
3d79abbd PB |
2958 | gfc_add_expr_to_block (&body, tmp); |
2959 | ||
2960 | /* Finish off this function and send it for code generation. */ | |
2961 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
c7c79a09 | 2962 | tmp = getdecls (); |
87a60f68 | 2963 | poplevel (1, 1); |
3d79abbd | 2964 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
c7c79a09 JJ |
2965 | DECL_SAVED_TREE (thunk_fndecl) |
2966 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2967 | DECL_INITIAL (thunk_fndecl)); | |
3d79abbd PB |
2968 | |
2969 | /* Output the GENERIC tree. */ | |
2970 | dump_function (TDI_original, thunk_fndecl); | |
2971 | ||
2972 | /* Store the end of the function, so that we get good line number | |
2973 | info for the epilogue. */ | |
2974 | cfun->function_end_locus = input_location; | |
2975 | ||
2976 | /* We're leaving the context of this function, so zap cfun. | |
2977 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2978 | tree_rest_of_compilation. */ | |
db2960f4 | 2979 | set_cfun (NULL); |
3d79abbd PB |
2980 | |
2981 | current_function_decl = NULL_TREE; | |
2982 | ||
3dafb85c | 2983 | cgraph_node::finalize_function (thunk_fndecl, true); |
3d79abbd PB |
2984 | |
2985 | /* We share the symbols in the formal argument list with other entry | |
2986 | points and the master function. Clear them so that they are | |
2987 | recreated for each function. */ | |
4cbc9039 JW |
2988 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2989 | formal = formal->next) | |
d198b59a JJ |
2990 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2991 | { | |
2992 | formal->sym->backend_decl = NULL_TREE; | |
2993 | if (formal->sym->ts.type == BT_CHARACTER) | |
bc21d315 | 2994 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
d198b59a JJ |
2995 | } |
2996 | ||
2997 | if (thunk_sym->attr.function) | |
3d79abbd | 2998 | { |
d198b59a | 2999 | if (thunk_sym->ts.type == BT_CHARACTER) |
bc21d315 | 3000 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
d198b59a | 3001 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
bc21d315 | 3002 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
3d79abbd PB |
3003 | } |
3004 | } | |
c8cc8542 | 3005 | |
363aab21 | 3006 | gfc_restore_backend_locus (&old_loc); |
3d79abbd PB |
3007 | } |
3008 | ||
3009 | ||
3010 | /* Create a decl for a function, and create any thunks for alternate entry | |
fb55ca75 TB |
3011 | points. If global is true, generate the function in the global binding |
3012 | level, otherwise in the current binding level (which can be global). */ | |
3d79abbd PB |
3013 | |
3014 | void | |
fb55ca75 | 3015 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
3d79abbd PB |
3016 | { |
3017 | /* Create a declaration for the master function. */ | |
fb55ca75 | 3018 | build_function_decl (ns->proc_name, global); |
3d79abbd | 3019 | |
f8d0aee5 | 3020 | /* Compile the entry thunks. */ |
3d79abbd | 3021 | if (ns->entries) |
fb55ca75 | 3022 | build_entry_thunks (ns, global); |
3d79abbd PB |
3023 | |
3024 | /* Now create the read argument list. */ | |
3025 | create_function_arglist (ns->proc_name); | |
dd2fc525 JJ |
3026 | |
3027 | if (ns->omp_declare_simd) | |
3028 | gfc_trans_omp_declare_simd (ns); | |
3d79abbd PB |
3029 | } |
3030 | ||
5f20c93a | 3031 | /* Return the decl used to hold the function return value. If |
da4c6ed8 | 3032 | parent_flag is set, the context is the parent_scope. */ |
6de9cd9a DN |
3033 | |
3034 | tree | |
5f20c93a | 3035 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
6de9cd9a | 3036 | { |
5f20c93a PT |
3037 | tree decl; |
3038 | tree length; | |
3039 | tree this_fake_result_decl; | |
3040 | tree this_function_decl; | |
6de9cd9a DN |
3041 | |
3042 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
3043 | ||
5f20c93a PT |
3044 | if (parent_flag) |
3045 | { | |
3046 | this_fake_result_decl = parent_fake_result_decl; | |
3047 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
3048 | } | |
3049 | else | |
3050 | { | |
3051 | this_fake_result_decl = current_fake_result_decl; | |
3052 | this_function_decl = current_function_decl; | |
3053 | } | |
3054 | ||
d198b59a | 3055 | if (sym |
5f20c93a | 3056 | && sym->ns->proc_name->backend_decl == this_function_decl |
417ab240 | 3057 | && sym->ns->proc_name->attr.entry_master |
d198b59a JJ |
3058 | && sym != sym->ns->proc_name) |
3059 | { | |
a7fc274f | 3060 | tree t = NULL, var; |
5f20c93a PT |
3061 | if (this_fake_result_decl != NULL) |
3062 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
417ab240 JJ |
3063 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
3064 | break; | |
3065 | if (t) | |
3066 | return TREE_VALUE (t); | |
5f20c93a PT |
3067 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
3068 | ||
3069 | if (parent_flag) | |
3070 | this_fake_result_decl = parent_fake_result_decl; | |
3071 | else | |
3072 | this_fake_result_decl = current_fake_result_decl; | |
3073 | ||
a7fc274f EB |
3074 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
3075 | { | |
3076 | tree field; | |
d198b59a | 3077 | |
a7fc274f EB |
3078 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); |
3079 | field; field = DECL_CHAIN (field)) | |
3080 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), | |
3081 | sym->name) == 0) | |
3082 | break; | |
d198b59a | 3083 | |
a7fc274f EB |
3084 | gcc_assert (field != NULL_TREE); |
3085 | decl = fold_build3_loc (input_location, COMPONENT_REF, | |
3086 | TREE_TYPE (field), decl, field, NULL_TREE); | |
3087 | } | |
5f20c93a PT |
3088 | |
3089 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
3090 | if (parent_flag) | |
3091 | gfc_add_decl_to_parent_function (var); | |
3092 | else | |
3093 | gfc_add_decl_to_function (var); | |
3094 | ||
417ab240 JJ |
3095 | SET_DECL_VALUE_EXPR (var, decl); |
3096 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
4b8ae4db | 3097 | GFC_DECL_RESULT (var) = 1; |
5f20c93a PT |
3098 | |
3099 | TREE_CHAIN (this_fake_result_decl) | |
3100 | = tree_cons (get_identifier (sym->name), var, | |
3101 | TREE_CHAIN (this_fake_result_decl)); | |
417ab240 | 3102 | return var; |
d198b59a JJ |
3103 | } |
3104 | ||
5f20c93a PT |
3105 | if (this_fake_result_decl != NULL_TREE) |
3106 | return TREE_VALUE (this_fake_result_decl); | |
6de9cd9a DN |
3107 | |
3108 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
3109 | sym is NULL. */ | |
3110 | if (!sym) | |
3111 | return NULL_TREE; | |
3112 | ||
417ab240 | 3113 | if (sym->ts.type == BT_CHARACTER) |
6de9cd9a | 3114 | { |
bc21d315 | 3115 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
417ab240 JJ |
3116 | length = gfc_create_string_length (sym); |
3117 | else | |
bc21d315 | 3118 | length = sym->ts.u.cl->backend_decl; |
d168c883 | 3119 | if (VAR_P (length) && DECL_CONTEXT (length) == NULL_TREE) |
a7d6b765 | 3120 | gfc_add_decl_to_function (length); |
6de9cd9a DN |
3121 | } |
3122 | ||
3123 | if (gfc_return_by_reference (sym)) | |
3124 | { | |
5f20c93a | 3125 | decl = DECL_ARGUMENTS (this_function_decl); |
d198b59a | 3126 | |
5f20c93a | 3127 | if (sym->ns->proc_name->backend_decl == this_function_decl |
d198b59a | 3128 | && sym->ns->proc_name->attr.entry_master) |
910ad8de | 3129 | decl = DECL_CHAIN (decl); |
6de9cd9a DN |
3130 | |
3131 | TREE_USED (decl) = 1; | |
3132 | if (sym->as) | |
3133 | decl = gfc_build_dummy_array_decl (sym, decl); | |
3134 | } | |
3135 | else | |
3136 | { | |
3137 | sprintf (name, "__result_%.20s", | |
5f20c93a | 3138 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
6de9cd9a | 3139 | |
da4c6ed8 | 3140 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
88e09c79 | 3141 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
c2255bc4 | 3142 | VAR_DECL, get_identifier (name), |
da4c6ed8 TS |
3143 | gfc_sym_type (sym)); |
3144 | else | |
88e09c79 | 3145 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
c2255bc4 | 3146 | VAR_DECL, get_identifier (name), |
da4c6ed8 | 3147 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
6de9cd9a DN |
3148 | DECL_ARTIFICIAL (decl) = 1; |
3149 | DECL_EXTERNAL (decl) = 0; | |
3150 | TREE_PUBLIC (decl) = 0; | |
3151 | TREE_USED (decl) = 1; | |
6c7a4dfd | 3152 | GFC_DECL_RESULT (decl) = 1; |
c55cebda | 3153 | TREE_ADDRESSABLE (decl) = 1; |
6de9cd9a DN |
3154 | |
3155 | layout_decl (decl, 0); | |
92d28cbb | 3156 | gfc_finish_decl_attrs (decl, &sym->attr); |
6de9cd9a | 3157 | |
5f20c93a PT |
3158 | if (parent_flag) |
3159 | gfc_add_decl_to_parent_function (decl); | |
3160 | else | |
3161 | gfc_add_decl_to_function (decl); | |
6de9cd9a DN |
3162 | } |
3163 | ||
5f20c93a PT |
3164 | if (parent_flag) |
3165 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
3166 | else | |
3167 | current_fake_result_decl = build_tree_list (NULL, decl); | |
6de9cd9a DN |
3168 | |
3169 | return decl; | |
3170 | } | |
3171 | ||
3172 | ||
3173 | /* Builds a function decl. The remaining parameters are the types of the | |
3174 | function arguments. Negative nargs indicates a varargs function. */ | |
3175 | ||
0b7b376d RG |
3176 | static tree |
3177 | build_library_function_decl_1 (tree name, const char *spec, | |
3178 | tree rettype, int nargs, va_list p) | |
6de9cd9a | 3179 | { |
9771b263 | 3180 | vec<tree, va_gc> *arglist; |
6de9cd9a DN |
3181 | tree fntype; |
3182 | tree fndecl; | |
6de9cd9a DN |
3183 | int n; |
3184 | ||
3185 | /* Library functions must be declared with global scope. */ | |
6e45f57b | 3186 | gcc_assert (current_function_decl == NULL_TREE); |
6de9cd9a | 3187 | |
6de9cd9a | 3188 | /* Create a list of the argument types. */ |
9771b263 | 3189 | vec_alloc (arglist, abs (nargs)); |
6c32445b | 3190 | for (n = abs (nargs); n > 0; n--) |
6de9cd9a | 3191 | { |
6c32445b | 3192 | tree argtype = va_arg (p, tree); |
9771b263 | 3193 | arglist->quick_push (argtype); |
6de9cd9a DN |
3194 | } |
3195 | ||
3196 | /* Build the function type and decl. */ | |
6c32445b NF |
3197 | if (nargs >= 0) |
3198 | fntype = build_function_type_vec (rettype, arglist); | |
3199 | else | |
3200 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
0b7b376d RG |
3201 | if (spec) |
3202 | { | |
3203 | tree attr_args = build_tree_list (NULL_TREE, | |
3204 | build_string (strlen (spec), spec)); | |
3205 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
3206 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
3207 | fntype = build_type_attribute_variant (fntype, attrs); | |
3208 | } | |
c2255bc4 AH |
3209 | fndecl = build_decl (input_location, |
3210 | FUNCTION_DECL, name, fntype); | |
6de9cd9a DN |
3211 | |
3212 | /* Mark this decl as external. */ | |
3213 | DECL_EXTERNAL (fndecl) = 1; | |
3214 | TREE_PUBLIC (fndecl) = 1; | |
3215 | ||
6de9cd9a DN |
3216 | pushdecl (fndecl); |
3217 | ||
0e6df31e | 3218 | rest_of_decl_compilation (fndecl, 1, 0); |
6de9cd9a DN |
3219 | |
3220 | return fndecl; | |
3221 | } | |
3222 | ||
0b7b376d RG |
3223 | /* Builds a function decl. The remaining parameters are the types of the |
3224 | function arguments. Negative nargs indicates a varargs function. */ | |
3225 | ||
3226 | tree | |
3227 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
3228 | { | |
3229 | tree ret; | |
3230 | va_list args; | |
3231 | va_start (args, nargs); | |
3232 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
3233 | va_end (args); | |
3234 | return ret; | |
3235 | } | |
3236 | ||
3237 | /* Builds a function decl. The remaining parameters are the types of the | |
3238 | function arguments. Negative nargs indicates a varargs function. | |
3239 | The SPEC parameter specifies the function argument and return type | |
3240 | specification according to the fnspec function type attribute. */ | |
3241 | ||
3f34855a | 3242 | tree |
0b7b376d RG |
3243 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3244 | tree rettype, int nargs, ...) | |
3245 | { | |
3246 | tree ret; | |
3247 | va_list args; | |
3248 | va_start (args, nargs); | |
3249 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3250 | va_end (args); | |
3251 | return ret; | |
3252 | } | |
3253 | ||
6de9cd9a DN |
3254 | static void |
3255 | gfc_build_intrinsic_function_decls (void) | |
3256 | { | |
e2cad04b | 3257 | tree gfc_int4_type_node = gfc_get_int_type (4); |
a416c4c7 | 3258 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
e2cad04b | 3259 | tree gfc_int8_type_node = gfc_get_int_type (8); |
a416c4c7 | 3260 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
644cb69f | 3261 | tree gfc_int16_type_node = gfc_get_int_type (16); |
e2cad04b | 3262 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
374929b2 FXC |
3263 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3264 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
e2cad04b | 3265 | |
6de9cd9a | 3266 | /* String functions. */ |
6368f166 DF |
3267 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3268 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3269 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3270 | gfc_charlen_type_node, pchar1_type_node); | |
4ca4be7f | 3271 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
22b139e1 | 3272 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
6368f166 DF |
3273 | |
3274 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3275 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3276 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3277 | gfc_charlen_type_node, pchar1_type_node, | |
3278 | gfc_charlen_type_node, pchar1_type_node); | |
22b139e1 | 3279 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
6368f166 DF |
3280 | |
3281 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3282 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3283 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
4ca4be7f | 3284 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
22b139e1 | 3285 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
6368f166 DF |
3286 | |
3287 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3288 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3289 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3290 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3291 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
22b139e1 | 3292 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
6368f166 DF |
3293 | |
3294 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3295 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3296 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3297 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3298 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
22b139e1 | 3299 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
6368f166 DF |
3300 | |
3301 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3302 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3303 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3304 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3305 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
22b139e1 | 3306 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
6368f166 DF |
3307 | |
3308 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3309 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3310 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3311 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3312 | pchar1_type_node); | |
3313 | ||
3314 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3315 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3316 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3317 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3318 | integer_type_node); | |
3319 | ||
3320 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3321 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3322 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3323 | pchar1_type_node); | |
22b139e1 | 3324 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
6368f166 DF |
3325 | |
3326 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3327 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3328 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3329 | pchar1_type_node); | |
22b139e1 | 3330 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
6368f166 DF |
3331 | |
3332 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3333 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3334 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3335 | pchar1_type_node, gfc_charlen_type_node); | |
4ca4be7f | 3336 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
22b139e1 | 3337 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
6368f166 DF |
3338 | |
3339 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3340 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3341 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3342 | gfc_charlen_type_node, pchar4_type_node); | |
4ca4be7f | 3343 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
22b139e1 | 3344 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
6368f166 DF |
3345 | |
3346 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3347 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3348 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3349 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3350 | pchar4_type_node); | |
22b139e1 | 3351 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
6368f166 DF |
3352 | |
3353 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3354 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3355 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
4ca4be7f | 3356 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
22b139e1 | 3357 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
6368f166 DF |
3358 | |
3359 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3360 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3361 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3362 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3363 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
22b139e1 | 3364 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
6368f166 DF |
3365 | |
3366 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3367 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3368 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3369 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3370 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
22b139e1 | 3371 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
6368f166 DF |
3372 | |
3373 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3374 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3375 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3376 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
4ca4be7f | 3377 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
22b139e1 | 3378 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
6368f166 DF |
3379 | |
3380 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3381 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3382 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3383 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3384 | pchar4_type_node); | |
3385 | ||
3386 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3387 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3388 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3389 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3390 | integer_type_node); | |
3391 | ||
3392 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3393 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3394 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3395 | pchar4_type_node); | |
22b139e1 | 3396 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
6368f166 DF |
3397 | |
3398 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3399 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3400 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3401 | pchar4_type_node); | |
22b139e1 | 3402 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
6368f166 DF |
3403 | |
3404 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3405 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3406 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3407 | pvoid_type_node, gfc_charlen_type_node); | |
4ca4be7f | 3408 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
22b139e1 | 3409 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
d393bbd7 FXC |
3410 | |
3411 | ||
3412 | /* Conversion between character kinds. */ | |
3413 | ||
6368f166 DF |
3414 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3415 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3416 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3417 | gfc_charlen_type_node, pchar1_type_node); | |
d393bbd7 | 3418 | |
6368f166 DF |
3419 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3420 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3421 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3422 | gfc_charlen_type_node, pchar4_type_node); | |
d393bbd7 | 3423 | |
374929b2 | 3424 | /* Misc. functions. */ |
2263c775 | 3425 | |
6368f166 DF |
3426 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3427 | get_identifier (PREFIX("ttynam")), ".W", | |
3428 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3429 | integer_type_node); | |
3430 | ||
3431 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3432 | get_identifier (PREFIX("fdate")), ".W", | |
3433 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3434 | ||
3435 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3436 | get_identifier (PREFIX("ctime")), ".W", | |
3437 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3438 | gfc_int8_type_node); | |
3439 | ||
ddd3e26e SK |
3440 | gfor_fndecl_random_init = gfc_build_library_function_decl ( |
3441 | get_identifier (PREFIX("random_init")), | |
3442 | void_type_node, 3, gfc_logical4_type_node, gfc_logical4_type_node, | |
3443 | gfc_int4_type_node); | |
3444 | ||
6368f166 DF |
3445 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( |
3446 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3447 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
4ca4be7f | 3448 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
22b139e1 | 3449 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
6368f166 DF |
3450 | |
3451 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3452 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3453 | gfc_int4_type_node, 1, pvoid_type_node); | |
4ca4be7f | 3454 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
22b139e1 | 3455 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
6368f166 DF |
3456 | |
3457 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3458 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3459 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3460 | pvoid_type_node); | |
4ca4be7f | 3461 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
22b139e1 | 3462 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
6de9cd9a | 3463 | |
a416c4c7 FXC |
3464 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3465 | get_identifier (PREFIX("system_clock_4")), | |
3466 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3467 | gfc_pint4_type_node); | |
3468 | ||
3469 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3470 | get_identifier (PREFIX("system_clock_8")), | |
3471 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3472 | gfc_pint8_type_node); | |
3473 | ||
6de9cd9a | 3474 | /* Power functions. */ |
5b200ac2 | 3475 | { |
644cb69f FXC |
3476 | tree ctype, rtype, itype, jtype; |
3477 | int rkind, ikind, jkind; | |
3478 | #define NIKINDS 3 | |
3479 | #define NRKINDS 4 | |
3480 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3481 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3482 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3483 | ||
3484 | for (ikind=0; ikind < NIKINDS; ikind++) | |
5b200ac2 | 3485 | { |
644cb69f FXC |
3486 | itype = gfc_get_int_type (ikinds[ikind]); |
3487 | ||
3488 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3489 | { | |
3490 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3491 | if (itype && jtype) | |
3492 | { | |
f8862a1b | 3493 | sprintf (name, PREFIX("pow_i%d_i%d"), ikinds[ikind], |
644cb69f FXC |
3494 | ikinds[jkind]); |
3495 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3496 | gfc_build_library_function_decl (get_identifier (name), | |
3497 | jtype, 2, jtype, itype); | |
67fdae36 | 3498 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
22b139e1 | 3499 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
644cb69f FXC |
3500 | } |
3501 | } | |
3502 | ||
3503 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
5b200ac2 | 3504 | { |
644cb69f FXC |
3505 | rtype = gfc_get_real_type (rkinds[rkind]); |
3506 | if (rtype && itype) | |
3507 | { | |
f8862a1b | 3508 | sprintf (name, PREFIX("pow_r%d_i%d"), rkinds[rkind], |
644cb69f FXC |
3509 | ikinds[ikind]); |
3510 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3511 | gfc_build_library_function_decl (get_identifier (name), | |
3512 | rtype, 2, rtype, itype); | |
67fdae36 | 3513 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
22b139e1 | 3514 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
644cb69f FXC |
3515 | } |
3516 | ||
3517 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3518 | if (ctype && itype) | |
3519 | { | |
f8862a1b | 3520 | sprintf (name, PREFIX("pow_c%d_i%d"), rkinds[rkind], |
644cb69f FXC |
3521 | ikinds[ikind]); |
3522 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3523 | gfc_build_library_function_decl (get_identifier (name), | |
3524 | ctype, 2,ctype, itype); | |
67fdae36 | 3525 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
22b139e1 | 3526 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
644cb69f | 3527 | } |
5b200ac2 FW |
3528 | } |
3529 | } | |
644cb69f FXC |
3530 | #undef NIKINDS |
3531 | #undef NRKINDS | |
5b200ac2 FW |
3532 | } |
3533 | ||
6368f166 DF |
3534 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3535 | get_identifier (PREFIX("ishftc4")), | |
3536 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3537 | gfc_int4_type_node); | |
22b139e1 JJ |
3538 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3539 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
8b704316 | 3540 | |
6368f166 DF |
3541 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3542 | get_identifier (PREFIX("ishftc8")), | |
3543 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3544 | gfc_int4_type_node); | |
22b139e1 JJ |
3545 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3546 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
6368f166 | 3547 | |
644cb69f | 3548 | if (gfc_int16_type_node) |
22b139e1 JJ |
3549 | { |
3550 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
6368f166 DF |
3551 | get_identifier (PREFIX("ishftc16")), |
3552 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3553 | gfc_int4_type_node); | |
22b139e1 JJ |
3554 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3555 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3556 | } | |
644cb69f | 3557 | |
5a0aad31 FXC |
3558 | /* BLAS functions. */ |
3559 | { | |
dd52ecb0 | 3560 | tree pint = build_pointer_type (integer_type_node); |
5a0aad31 FXC |
3561 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3562 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3563 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3564 | tree pz = build_pointer_type | |
3565 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3566 | ||
3567 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3568 | (get_identifier | |
c61819ff | 3569 | (flag_underscoring ? "sgemm_" : "sgemm"), |
5a0aad31 FXC |
3570 | void_type_node, 15, pchar_type_node, |
3571 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
dd52ecb0 JB |
3572 | ps, pint, ps, ps, pint, integer_type_node, |
3573 | integer_type_node); | |
5a0aad31 FXC |
3574 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3575 | (get_identifier | |
c61819ff | 3576 | (flag_underscoring ? "dgemm_" : "dgemm"), |
5a0aad31 FXC |
3577 | void_type_node, 15, pchar_type_node, |
3578 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
dd52ecb0 JB |
3579 | pd, pint, pd, pd, pint, integer_type_node, |
3580 | integer_type_node); | |
5a0aad31 FXC |
3581 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3582 | (get_identifier | |
c61819ff | 3583 | (flag_underscoring ? "cgemm_" : "cgemm"), |
5a0aad31 FXC |
3584 | void_type_node, 15, pchar_type_node, |
3585 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
dd52ecb0 JB |
3586 | pc, pint, pc, pc, pint, integer_type_node, |
3587 | integer_type_node); | |
5a0aad31 FXC |
3588 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3589 | (get_identifier | |
c61819ff | 3590 | (flag_underscoring ? "zgemm_" : "zgemm"), |
5a0aad31 FXC |
3591 | void_type_node, 15, pchar_type_node, |
3592 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
dd52ecb0 JB |
3593 | pz, pint, pz, pz, pint, integer_type_node, |
3594 | integer_type_node); | |
5a0aad31 FXC |
3595 | } |
3596 | ||
6de9cd9a | 3597 | /* Other functions. */ |
6368f166 DF |
3598 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3599 | get_identifier (PREFIX("size0")), ".R", | |
3600 | gfc_array_index_type, 1, pvoid_type_node); | |
4ca4be7f | 3601 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
22b139e1 | 3602 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
6368f166 DF |
3603 | |
3604 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3605 | get_identifier (PREFIX("size1")), ".R", | |
3606 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
4ca4be7f | 3607 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
22b139e1 | 3608 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
6368f166 DF |
3609 | |
3610 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3611 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
22b139e1 | 3612 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
17164de4 SK |
3613 | |
3614 | gfor_fndecl_kill_sub = gfc_build_library_function_decl ( | |
3615 | get_identifier (PREFIX ("kill_sub")), void_type_node, | |
3616 | 3, gfc_int4_type_node, gfc_int4_type_node, gfc_pint4_type_node); | |
3617 | ||
3618 | gfor_fndecl_kill = gfc_build_library_function_decl ( | |
3619 | get_identifier (PREFIX ("kill")), gfc_int4_type_node, | |
3620 | 2, gfc_int4_type_node, gfc_int4_type_node); | |
419af57c TK |
3621 | |
3622 | gfor_fndecl_is_contiguous0 = gfc_build_library_function_decl_with_spec ( | |
3623 | get_identifier (PREFIX("is_contiguous0")), ".R", | |
3624 | gfc_int4_type_node, 1, pvoid_type_node); | |
3625 | DECL_PURE_P (gfor_fndecl_is_contiguous0) = 1; | |
3626 | TREE_NOTHROW (gfor_fndecl_is_contiguous0) = 1; | |
6de9cd9a DN |
3627 | } |
3628 | ||
3629 | ||
3630 | /* Make prototypes for runtime library functions. */ | |
3631 | ||
3632 | void | |
3633 | gfc_build_builtin_function_decls (void) | |
3634 | { | |
6cc22cf4 | 3635 | tree gfc_int8_type_node = gfc_get_int_type (8); |
6de9cd9a | 3636 | |
6368f166 DF |
3637 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3638 | get_identifier (PREFIX("stop_numeric")), | |
dffb1e22 | 3639 | void_type_node, 2, integer_type_node, boolean_type_node); |
6d1b0f92 | 3640 | /* STOP doesn't return. */ |
eed61baa TK |
3641 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3642 | ||
6368f166 DF |
3643 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3644 | get_identifier (PREFIX("stop_string")), ".R.", | |
dffb1e22 JB |
3645 | void_type_node, 3, pchar_type_node, size_type_node, |
3646 | boolean_type_node); | |
6d1b0f92 | 3647 | /* STOP doesn't return. */ |
6368f166 | 3648 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
4ca4be7f | 3649 | |
6368f166 DF |
3650 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3651 | get_identifier (PREFIX("error_stop_numeric")), | |
dffb1e22 | 3652 | void_type_node, 2, integer_type_node, boolean_type_node); |
6d1b0f92 JD |
3653 | /* ERROR STOP doesn't return. */ |
3654 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3655 | ||
6368f166 DF |
3656 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3657 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
dffb1e22 JB |
3658 | void_type_node, 3, pchar_type_node, size_type_node, |
3659 | boolean_type_node); | |
d0a4a61c TB |
3660 | /* ERROR STOP doesn't return. */ |
3661 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3662 | ||
6368f166 DF |
3663 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3664 | get_identifier (PREFIX("pause_numeric")), | |
6cc22cf4 | 3665 | void_type_node, 1, gfc_int8_type_node); |
6d1b0f92 | 3666 | |
6368f166 DF |
3667 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3668 | get_identifier (PREFIX("pause_string")), ".R.", | |
6cc22cf4 | 3669 | void_type_node, 2, pchar_type_node, size_type_node); |
6de9cd9a | 3670 | |
6368f166 DF |
3671 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3672 | get_identifier (PREFIX("runtime_error")), ".R", | |
3673 | void_type_node, -1, pchar_type_node); | |
16275f18 SB |
3674 | /* The runtime_error function does not return. */ |
3675 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
6de9cd9a | 3676 | |
6368f166 DF |
3677 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3678 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3679 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
f96d606f JD |
3680 | /* The runtime_error_at function does not return. */ |
3681 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
8b704316 | 3682 | |
6368f166 DF |
3683 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3684 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3685 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3686 | ||
3687 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3688 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3689 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3690 | pchar_type_node); | |
3691 | ||
d74a8b05 JB |
3692 | gfor_fndecl_os_error_at = gfc_build_library_function_decl_with_spec ( |
3693 | get_identifier (PREFIX("os_error_at")), ".RR", | |
3694 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3695 | /* The os_error_at function does not return. */ | |
3696 | TREE_THIS_VOLATILE (gfor_fndecl_os_error_at) = 1; | |
1529b8d9 | 3697 | |
6368f166 DF |
3698 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3699 | get_identifier (PREFIX("set_args")), | |
3700 | void_type_node, 2, integer_type_node, | |
3701 | build_pointer_type (pchar_type_node)); | |
092231a8 | 3702 | |
6368f166 DF |
3703 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3704 | get_identifier (PREFIX("set_fpe")), | |
3705 | void_type_node, 1, integer_type_node); | |
944b8b35 | 3706 | |
8b198102 FXC |
3707 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3708 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3709 | void_type_node, 1, pvoid_type_node); | |
3710 | ||
3711 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3712 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3713 | void_type_node, 1, pvoid_type_node); | |
3714 | ||
68d2e027 | 3715 | /* Keep the array dimension in sync with the call, later in this file. */ |
6368f166 DF |
3716 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3717 | get_identifier (PREFIX("set_options")), "..R", | |
3718 | void_type_node, 2, integer_type_node, | |
3719 | build_pointer_type (integer_type_node)); | |
8b67b708 | 3720 | |
6368f166 DF |
3721 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3722 | get_identifier (PREFIX("set_convert")), | |
3723 | void_type_node, 1, integer_type_node); | |
eaa90d25 | 3724 | |
6368f166 DF |
3725 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3726 | get_identifier (PREFIX("set_record_marker")), | |
3727 | void_type_node, 1, integer_type_node); | |
d67ab5ee | 3728 | |
6368f166 DF |
3729 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3730 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3731 | void_type_node, 1, integer_type_node); | |
07b3bbf2 | 3732 | |
0b7b376d | 3733 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
6368f166 DF |
3734 | get_identifier (PREFIX("internal_pack")), ".r", |
3735 | pvoid_type_node, 1, pvoid_type_node); | |
6de9cd9a | 3736 | |
0b7b376d | 3737 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
6368f166 DF |
3738 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3739 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3740 | ||
bbf18dc5 PT |
3741 | gfor_fndecl_cfi_to_gfc = gfc_build_library_function_decl_with_spec ( |
3742 | get_identifier (PREFIX("cfi_desc_to_gfc_desc")), ".ww", | |
3743 | void_type_node, 2, pvoid_type_node, ppvoid_type_node); | |
3744 | ||
3745 | gfor_fndecl_gfc_to_cfi = gfc_build_library_function_decl_with_spec ( | |
3746 | get_identifier (PREFIX("gfc_desc_to_cfi_desc")), ".wR", | |
3747 | void_type_node, 2, ppvoid_type_node, pvoid_type_node); | |
3748 | ||
6368f166 DF |
3749 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( |
3750 | get_identifier (PREFIX("associated")), ".RR", | |
3751 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
4ca4be7f | 3752 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
22b139e1 | 3753 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
6de9cd9a | 3754 | |
60386f50 | 3755 | /* Coarray library calls. */ |
f19626cf | 3756 | if (flag_coarray == GFC_FCOARRAY_LIB) |
60386f50 TB |
3757 | { |
3758 | tree pint_type, pppchar_type; | |
3759 | ||
3760 | pint_type = build_pointer_type (integer_type_node); | |
3761 | pppchar_type | |
3762 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3763 | ||
3764 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
4971dd80 AV |
3765 | get_identifier (PREFIX("caf_init")), void_type_node, |
3766 | 2, pint_type, pppchar_type); | |
60386f50 TB |
3767 | |
3768 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3769 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3770 | ||
a8a5f4a9 | 3771 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
4971dd80 AV |
3772 | get_identifier (PREFIX("caf_this_image")), integer_type_node, |
3773 | 1, integer_type_node); | |
a8a5f4a9 TB |
3774 | |
3775 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
4971dd80 AV |
3776 | get_identifier (PREFIX("caf_num_images")), integer_type_node, |
3777 | 2, integer_type_node, integer_type_node); | |
a8a5f4a9 | 3778 | |
b8ff4e88 | 3779 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3c9f5092 AV |
3780 | get_identifier (PREFIX("caf_register")), "RRWWWWR", void_type_node, 7, |
3781 | size_type_node, integer_type_node, ppvoid_type_node, pvoid_type_node, | |
3f5fabc0 | 3782 | pint_type, pchar_type_node, size_type_node); |
5d81ddd0 TB |
3783 | |
3784 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
ba85c8c3 AV |
3785 | get_identifier (PREFIX("caf_deregister")), "WRWWR", void_type_node, 5, |
3786 | ppvoid_type_node, integer_type_node, pint_type, pchar_type_node, | |
3f5fabc0 | 3787 | size_type_node); |
b8ff4e88 | 3788 | |
b5116268 | 3789 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
4971dd80 AV |
3790 | get_identifier (PREFIX("caf_get")), ".R.RRWRRRW", void_type_node, 10, |
3791 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, | |
93e2e046 | 3792 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
20d0bfce | 3793 | boolean_type_node, pint_type); |
b5116268 TB |
3794 | |
3795 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
f8862a1b | 3796 | get_identifier (PREFIX("caf_send")), ".R.RRRRRRWR", void_type_node, 11, |
4971dd80 | 3797 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
93e2e046 | 3798 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
f8862a1b | 3799 | boolean_type_node, pint_type, pvoid_type_node); |
b5116268 TB |
3800 | |
3801 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
3c9f5092 AV |
3802 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRRRRR", |
3803 | void_type_node, 14, pvoid_type_node, size_type_node, integer_type_node, | |
3804 | pvoid_type_node, pvoid_type_node, pvoid_type_node, size_type_node, | |
3805 | integer_type_node, pvoid_type_node, pvoid_type_node, integer_type_node, | |
3806 | integer_type_node, boolean_type_node, integer_type_node); | |
3807 | ||
3808 | gfor_fndecl_caf_get_by_ref = gfc_build_library_function_decl_with_spec ( | |
87e8aa3b AV |
3809 | get_identifier (PREFIX("caf_get_by_ref")), ".RWRRRRRWR", void_type_node, |
3810 | 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3811 | pvoid_type_node, integer_type_node, integer_type_node, | |
3812 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
3c9f5092 AV |
3813 | |
3814 | gfor_fndecl_caf_send_by_ref = gfc_build_library_function_decl_with_spec ( | |
87e8aa3b AV |
3815 | get_identifier (PREFIX("caf_send_by_ref")), ".RRRRRRRWR", |
3816 | void_type_node, 10, pvoid_type_node, integer_type_node, pvoid_type_node, | |
3817 | pvoid_type_node, integer_type_node, integer_type_node, | |
3818 | boolean_type_node, boolean_type_node, pint_type, integer_type_node); | |
3c9f5092 AV |
3819 | |
3820 | gfor_fndecl_caf_sendget_by_ref | |
3821 | = gfc_build_library_function_decl_with_spec ( | |
87e8aa3b AV |
3822 | get_identifier (PREFIX("caf_sendget_by_ref")), ".RR.RRRRRWWRR", |
3823 | void_type_node, 13, pvoid_type_node, integer_type_node, | |
3c9f5092 AV |
3824 | pvoid_type_node, pvoid_type_node, integer_type_node, |
3825 | pvoid_type_node, integer_type_node, integer_type_node, | |
87e8aa3b AV |
3826 | boolean_type_node, pint_type, pint_type, integer_type_node, |
3827 | integer_type_node); | |
b5116268 | 3828 | |
60386f50 | 3829 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
f5c01f5b | 3830 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
3f5fabc0 | 3831 | 3, pint_type, pchar_type_node, size_type_node); |
60386f50 | 3832 | |
9315dff0 AF |
3833 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3834 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3f5fabc0 | 3835 | 3, pint_type, pchar_type_node, size_type_node); |
9315dff0 | 3836 | |
60386f50 | 3837 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
f5c01f5b DC |
3838 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3839 | 5, integer_type_node, pint_type, pint_type, | |
3f5fabc0 | 3840 | pchar_type_node, size_type_node); |
60386f50 TB |
3841 | |
3842 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3843 | get_identifier (PREFIX("caf_error_stop")), | |
3f5fabc0 | 3844 | void_type_node, 1, integer_type_node); |
60386f50 TB |
3845 | /* CAF's ERROR STOP doesn't return. */ |
3846 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3847 | ||
3848 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3849 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3f5fabc0 | 3850 | void_type_node, 2, pchar_type_node, size_type_node); |
60386f50 TB |
3851 | /* CAF's ERROR STOP doesn't return. */ |
3852 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
d62cf3df | 3853 | |
0daa7ed9 | 3854 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
4971dd80 | 3855 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", |
3f5fabc0 | 3856 | void_type_node, 1, integer_type_node); |
0daa7ed9 AF |
3857 | /* CAF's STOP doesn't return. */ |
3858 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3859 | ||
3860 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
4971dd80 | 3861 | get_identifier (PREFIX("caf_stop_str")), ".R.", |
3f5fabc0 | 3862 | void_type_node, 2, pchar_type_node, size_type_node); |
0daa7ed9 AF |
3863 | /* CAF's STOP doesn't return. */ |
3864 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3865 | ||
42a8246d TB |
3866 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3867 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3868 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3869 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
42a8246d TB |
3870 | |
3871 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3872 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3873 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3874 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); |
42a8246d TB |
3875 | |
3876 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3877 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3878 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
4971dd80 | 3879 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, |
42a8246d TB |
3880 | integer_type_node, integer_type_node); |
3881 | ||
3882 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3883 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3884 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3885 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3886 | integer_type_node, integer_type_node); | |
3887 | ||
bc0229f9 TB |
3888 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3889 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3890 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3f5fabc0 | 3891 | pint_type, pint_type, pchar_type_node, size_type_node); |
bc0229f9 TB |
3892 | |
3893 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3894 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
772e797a | 3895 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
3f5fabc0 | 3896 | pint_type, pchar_type_node, size_type_node); |
bc0229f9 | 3897 | |
5df445a2 TB |
3898 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3899 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3900 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3f5fabc0 | 3901 | pint_type, pchar_type_node, size_type_node); |
5df445a2 TB |
3902 | |
3903 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3904 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3905 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3f5fabc0 | 3906 | pint_type, pchar_type_node, size_type_node); |
5df445a2 TB |
3907 | |
3908 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3909 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3910 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3911 | pint_type, pint_type); | |
3912 | ||
ef78bc3c AV |
3913 | gfor_fndecl_caf_fail_image = gfc_build_library_function_decl ( |
3914 | get_identifier (PREFIX("caf_fail_image")), void_type_node, 0); | |
3915 | /* CAF's FAIL doesn't return. */ | |
3916 | TREE_THIS_VOLATILE (gfor_fndecl_caf_fail_image) = 1; | |
3917 | ||
3918 | gfor_fndecl_caf_failed_images | |
3919 | = gfc_build_library_function_decl_with_spec ( | |
3920 | get_identifier (PREFIX("caf_failed_images")), "WRR", | |
3921 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3922 | integer_type_node); | |
3923 | ||
f8862a1b DR |
3924 | gfor_fndecl_caf_form_team |
3925 | = gfc_build_library_function_decl_with_spec ( | |
3926 | get_identifier (PREFIX("caf_form_team")), "RWR", | |
3927 | void_type_node, 3, integer_type_node, ppvoid_type_node, | |
3928 | integer_type_node); | |
3929 | ||
3930 | gfor_fndecl_caf_change_team | |
3931 | = gfc_build_library_function_decl_with_spec ( | |
3932 | get_identifier (PREFIX("caf_change_team")), "RR", | |
3933 | void_type_node, 2, ppvoid_type_node, | |
3934 | integer_type_node); | |
3935 | ||
3936 | gfor_fndecl_caf_end_team | |
3937 | = gfc_build_library_function_decl ( | |
3938 | get_identifier (PREFIX("caf_end_team")), void_type_node, 0); | |
3939 | ||
3940 | gfor_fndecl_caf_get_team | |
3941 | = gfc_build_library_function_decl_with_spec ( | |
3942 | get_identifier (PREFIX("caf_get_team")), "R", | |
3943 | void_type_node, 1, integer_type_node); | |
3944 | ||
3945 | gfor_fndecl_caf_sync_team | |
3946 | = gfc_build_library_function_decl_with_spec ( | |
3947 | get_identifier (PREFIX("caf_sync_team")), "RR", | |
3948 | void_type_node, 2, ppvoid_type_node, | |
3949 | integer_type_node); | |
3950 | ||
3951 | gfor_fndecl_caf_team_number | |
3952 | = gfc_build_library_function_decl_with_spec ( | |
3953 | get_identifier (PREFIX("caf_team_number")), "R", | |
3954 | integer_type_node, 1, integer_type_node); | |
3955 | ||
ef78bc3c AV |
3956 | gfor_fndecl_caf_image_status |
3957 | = gfc_build_library_function_decl_with_spec ( | |
3958 | get_identifier (PREFIX("caf_image_status")), "RR", | |
3959 | integer_type_node, 2, integer_type_node, ppvoid_type_node); | |
3960 | ||
3961 | gfor_fndecl_caf_stopped_images | |
3962 | = gfc_build_library_function_decl_with_spec ( | |
3963 | get_identifier (PREFIX("caf_stopped_images")), "WRR", | |
3964 | void_type_node, 3, pvoid_type_node, ppvoid_type_node, | |
3965 | integer_type_node); | |
3966 | ||
a16ee379 TB |
3967 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3968 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3969 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3970 | pint_type, pchar_type_node, size_type_node); |
a16ee379 | 3971 | |
d62cf3df | 3972 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
b5116268 TB |
3973 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3974 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3975 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
d62cf3df TB |
3976 | |
3977 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
b5116268 TB |
3978 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3979 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3980 | pint_type, pchar_type_node, integer_type_node, size_type_node); |
d62cf3df | 3981 | |
229c5919 TB |
3982 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3983 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3984 | void_type_node, 8, pvoid_type_node, | |
4971dd80 | 3985 | build_pointer_type (build_varargs_function_type_list (void_type_node, |
229c5919 TB |
3986 | NULL_TREE)), |
3987 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3f5fabc0 | 3988 | integer_type_node, size_type_node); |
229c5919 | 3989 | |
d62cf3df | 3990 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
b5116268 TB |
3991 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3992 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3f5fabc0 | 3993 | pint_type, pchar_type_node, size_type_node); |
ba85c8c3 AV |
3994 | |
3995 | gfor_fndecl_caf_is_present = gfc_build_library_function_decl_with_spec ( | |
3996 | get_identifier (PREFIX("caf_is_present")), "RRR", | |
3997 | integer_type_node, 3, pvoid_type_node, integer_type_node, | |
3998 | pvoid_type_node); | |
60386f50 TB |
3999 | } |
4000 | ||
6de9cd9a DN |
4001 | gfc_build_intrinsic_function_decls (); |
4002 | gfc_build_intrinsic_lib_fndecls (); | |
4003 | gfc_build_io_library_fndecls (); | |
4004 | } | |
4005 | ||
4006 | ||
1f2959f0 | 4007 | /* Evaluate the length of dummy character variables. */ |
6de9cd9a | 4008 | |
0019d498 DK |
4009 | static void |
4010 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
4011 | gfc_wrapped_block *block) | |
6de9cd9a | 4012 | { |
0019d498 | 4013 | stmtblock_t init; |
6de9cd9a | 4014 | |
faf28b3a | 4015 | gfc_finish_decl (cl->backend_decl); |
6de9cd9a | 4016 | |
0019d498 | 4017 | gfc_start_block (&init); |
6de9cd9a DN |
4018 | |
4019 | /* Evaluate the string length expression. */ | |
0019d498 | 4020 | gfc_conv_string_length (cl, NULL, &init); |
417ab240 | 4021 | |
0019d498 | 4022 | gfc_trans_vla_type_sizes (sym, &init); |
417ab240 | 4023 | |
0019d498 | 4024 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
6de9cd9a DN |
4025 | } |
4026 | ||
4027 | ||
4028 | /* Allocate and cleanup an automatic character variable. */ | |
4029 | ||
0019d498 DK |
4030 | static void |
4031 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
6de9cd9a | 4032 | { |
0019d498 | 4033 | stmtblock_t init; |
6de9cd9a | 4034 | tree decl; |
6de9cd9a DN |
4035 | tree tmp; |
4036 | ||
6e45f57b | 4037 | gcc_assert (sym->backend_decl); |
bc21d315 | 4038 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
6de9cd9a | 4039 | |
323cea66 | 4040 | gfc_init_block (&init); |
6de9cd9a DN |
4041 | |
4042 | /* Evaluate the string length expression. */ | |
0019d498 | 4043 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
6de9cd9a | 4044 | |
0019d498 | 4045 | gfc_trans_vla_type_sizes (sym, &init); |
417ab240 | 4046 | |
6de9cd9a DN |
4047 | decl = sym->backend_decl; |
4048 | ||
1a186ec5 | 4049 | /* Emit a DECL_EXPR for this variable, which will cause the |
4ab2db93 | 4050 | gimplifier to allocate storage, and all that good stuff. */ |
bc98ed60 | 4051 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
0019d498 | 4052 | gfc_add_expr_to_block (&init, tmp); |
1a186ec5 | 4053 | |
0019d498 | 4054 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
6de9cd9a DN |
4055 | } |
4056 | ||
910450c1 FW |
4057 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
4058 | ||
0019d498 DK |
4059 | static void |
4060 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
910450c1 | 4061 | { |
0019d498 | 4062 | stmtblock_t init; |
910450c1 FW |
4063 | |
4064 | gcc_assert (sym->backend_decl); | |
0019d498 | 4065 | gfc_start_block (&init); |
910450c1 FW |
4066 | |
4067 | /* Set the initial value to length. See the comments in | |
4068 | function gfc_add_assign_aux_vars in this file. */ | |
0019d498 | 4069 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
df09d1d5 | 4070 | build_int_cst (gfc_charlen_type_node, -2)); |
910450c1 | 4071 | |
0019d498 | 4072 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
910450c1 FW |
4073 | } |
4074 | ||
417ab240 JJ |
4075 | static void |
4076 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
4077 | { | |
4078 | tree t = *tp, var, val; | |
4079 | ||
4080 | if (t == NULL || t == error_mark_node) | |
4081 | return; | |
4082 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
4083 | return; | |
4084 | ||
4085 | if (TREE_CODE (t) == SAVE_EXPR) | |
4086 | { | |
4087 | if (SAVE_EXPR_RESOLVED_P (t)) | |
4088 | { | |
4089 | *tp = TREE_OPERAND (t, 0); | |
4090 | return; | |
4091 | } | |
4092 | val = TREE_OPERAND (t, 0); | |
4093 | } | |
4094 | else | |
4095 | val = t; | |
4096 | ||
4097 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
4098 | gfc_add_decl_to_function (var); | |
7a27d38f | 4099 | gfc_add_modify (body, var, unshare_expr (val)); |
417ab240 JJ |
4100 | if (TREE_CODE (t) == SAVE_EXPR) |
4101 | TREE_OPERAND (t, 0) = var; | |
4102 | *tp = var; | |
4103 | } | |
4104 | ||
4105 | static void | |
4106 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
4107 | { | |
4108 | tree t; | |
4109 | ||
4110 | if (type == NULL || type == error_mark_node) | |
4111 | return; | |
4112 | ||
4113 | type = TYPE_MAIN_VARIANT (type); | |
4114 | ||
4115 | if (TREE_CODE (type) == INTEGER_TYPE) | |
4116 | { | |
4117 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
4118 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
4119 | ||
4120 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
4121 | { | |
4122 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
4123 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
4124 | } | |
4125 | } | |
4126 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
4127 | { | |
4128 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
4129 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
4130 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
4131 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
4132 | ||
4133 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
4134 | { | |
4135 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
4136 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
4137 | } | |
4138 | } | |
4139 | } | |
4140 | ||
4141 | /* Make sure all type sizes and array domains are either constant, | |
4142 | or variable or parameter decls. This is a simplified variant | |
4143 | of gimplify_type_sizes, but we can't use it here, as none of the | |
4144 | variables in the expressions have been gimplified yet. | |
4145 | As type sizes and domains for various variable length arrays | |
4146 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
4147 | time, without this routine gimplify_type_sizes in the middle-end | |
4148 | could result in the type sizes being gimplified earlier than where | |
4149 | those variables are initialized. */ | |
4150 | ||
4151 | void | |
4152 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
4153 | { | |
4154 | tree type = TREE_TYPE (sym->backend_decl); | |
4155 | ||
4156 | if (TREE_CODE (type) == FUNCTION_TYPE | |
4157 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
4158 | { | |
4159 | if (! current_fake_result_decl) | |
4160 | return; | |
4161 | ||
4162 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
4163 | } | |
4164 | ||
4165 | while (POINTER_TYPE_P (type)) | |
4166 | type = TREE_TYPE (type); | |
4167 | ||
4168 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
4169 | { | |
4170 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
4171 | ||
4172 | while (POINTER_TYPE_P (etype)) | |
4173 | etype = TREE_TYPE (etype); | |
4174 | ||
4175 | gfc_trans_vla_type_sizes_1 (etype, body); | |
4176 | } | |
4177 | ||
4178 | gfc_trans_vla_type_sizes_1 (type, body); | |
4179 | } | |
4180 | ||
6de9cd9a | 4181 | |
b7b184a8 | 4182 | /* Initialize a derived type by building an lvalue from the symbol |
2b56d6a4 TB |
4183 | and using trans_assignment to do the work. Set dealloc to false |
4184 | if no deallocation prior the assignment is needed. */ | |
0019d498 DK |
4185 | void |
4186 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
d3837072 | 4187 | { |
b7b184a8 | 4188 | gfc_expr *e; |
d3837072 PT |
4189 | tree tmp; |
4190 | tree present; | |
4191 | ||
0019d498 DK |
4192 | gcc_assert (block); |
4193 | ||
276515e6 PT |
4194 | /* Initialization of PDTs is done elsewhere. */ |
4195 | if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pdt_type) | |
4196 | return; | |
4197 | ||
b7b184a8 PT |
4198 | gcc_assert (!sym->attr.allocatable); |
4199 | gfc_set_sym_referenced (sym); | |
4200 | e = gfc_lval_expr_from_sym (sym); | |
2b56d6a4 | 4201 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
ba6f7079 TB |
4202 | if (sym->attr.dummy && (sym->attr.optional |
4203 | || sym->ns->proc_name->attr.entry_master)) | |
d3837072 | 4204 | { |
b7b184a8 | 4205 | present = gfc_conv_expr_present (sym); |
5d44e5c8 TB |
4206 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
4207 | tmp, build_empty_stmt (input_location)); | |
d3837072 | 4208 | } |
0019d498 | 4209 | gfc_add_expr_to_block (block, tmp); |
b7b184a8 | 4210 | gfc_free_expr (e); |
d3837072 PT |
4211 | } |
4212 | ||
4213 | ||
2c69d527 PT |
4214 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
4215 | them their default initializer, if they do not have allocatable | |
1cc0e193 | 4216 | components, they have their allocatable components deallocated. */ |
2c69d527 | 4217 | |
0019d498 DK |
4218 | static void |
4219 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
b7b184a8 | 4220 | { |
0019d498 | 4221 | stmtblock_t init; |
b7b184a8 | 4222 | gfc_formal_arglist *f; |
2c69d527 | 4223 | tree tmp; |
8a272531 | 4224 | tree present; |
b7b184a8 | 4225 | |
0019d498 | 4226 | gfc_init_block (&init); |
4cbc9039 | 4227 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
b7b184a8 | 4228 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
758e12af TB |
4229 | && !f->sym->attr.pointer |
4230 | && f->sym->ts.type == BT_DERIVED) | |
2c69d527 | 4231 | { |
ed3f1ef2 TB |
4232 | tmp = NULL_TREE; |
4233 | ||
4234 | /* Note: Allocatables are excluded as they are already handled | |
4235 | by the caller. */ | |
4236 | if (!f->sym->attr.allocatable | |
4237 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
2c69d527 | 4238 | { |
ed3f1ef2 TB |
4239 | stmtblock_t block; |
4240 | gfc_expr *e; | |
4241 | ||
4242 | gfc_init_block (&block); | |
4243 | f->sym->attr.referenced = 1; | |
4244 | e = gfc_lval_expr_from_sym (f->sym); | |
4245 | gfc_add_finalizer_call (&block, e); | |
4246 | gfc_free_expr (e); | |
4247 | tmp = gfc_finish_block (&block); | |
4248 | } | |
8a272531 | 4249 | |
ed3f1ef2 TB |
4250 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
4251 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
4252 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
4253 | f->sym->backend_decl, | |
4254 | f->sym->as ? f->sym->as->rank : 0); | |
8a272531 | 4255 | |
ed3f1ef2 TB |
4256 | if (tmp != NULL_TREE && (f->sym->attr.optional |
4257 | || f->sym->ns->proc_name->attr.entry_master)) | |
4258 | { | |
4259 | present = gfc_conv_expr_present (f->sym); | |
4260 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4261 | present, tmp, build_empty_stmt (input_location)); | |
2c69d527 | 4262 | } |
ed3f1ef2 TB |
4263 | |
4264 | if (tmp != NULL_TREE) | |
4265 | gfc_add_expr_to_block (&init, tmp); | |
4266 | else if (f->sym->value && !f->sym->attr.allocatable) | |
0019d498 | 4267 | gfc_init_default_dt (f->sym, &init, true); |
2c69d527 | 4268 | } |
c7f17815 JW |
4269 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
4270 | && f->sym->ts.type == BT_CLASS | |
4271 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
ed3f1ef2 | 4272 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c7f17815 | 4273 | { |
ed3f1ef2 TB |
4274 | stmtblock_t block; |
4275 | gfc_expr *e; | |
4276 | ||
4277 | gfc_init_block (&block); | |
4278 | f->sym->attr.referenced = 1; | |
4279 | e = gfc_lval_expr_from_sym (f->sym); | |
4280 | gfc_add_finalizer_call (&block, e); | |
4281 | gfc_free_expr (e); | |
4282 | tmp = gfc_finish_block (&block); | |
c7f17815 JW |
4283 | |
4284 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
4285 | { | |
4286 | present = gfc_conv_expr_present (f->sym); | |
4287 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
4288 | present, tmp, | |
4289 | build_empty_stmt (input_location)); | |
4290 | } | |
4291 | ||
4292 | gfc_add_expr_to_block (&init, tmp); | |
4293 | } | |
b7b184a8 | 4294 | |
0019d498 | 4295 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
b7b184a8 PT |
4296 | } |
4297 | ||
d3837072 | 4298 | |
ce1ff48e PT |
4299 | /* Helper function to manage deferred string lengths. */ |
4300 | ||
4301 | static tree | |
4302 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
4303 | locus *loc) | |
4304 | { | |
4305 | tree tmp; | |
4306 | ||
4307 | /* Character length passed by reference. */ | |
4308 | tmp = sym->ts.u.cl->passed_length; | |
4309 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4310 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4311 | ||
4312 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
4313 | /* Zero the string length when entering the scope. */ | |
4314 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
4315 | build_int_cst (gfc_charlen_type_node, 0)); | |
4316 | else | |
4317 | { | |
4318 | tree tmp2; | |
4319 | ||
4320 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
4321 | gfc_charlen_type_node, | |
4322 | sym->ts.u.cl->backend_decl, tmp); | |
4323 | if (sym->attr.optional) | |
4324 | { | |
4325 | tree present = gfc_conv_expr_present (sym); | |
4326 | tmp2 = build3_loc (input_location, COND_EXPR, | |
4327 | void_type_node, present, tmp2, | |
4328 | build_empty_stmt (input_location)); | |
4329 | } | |
4330 | gfc_add_expr_to_block (init, tmp2); | |
4331 | } | |
4332 | ||
4333 | gfc_restore_backend_locus (loc); | |
4334 | ||
4335 | /* Pass the final character length back. */ | |
4336 | if (sym->attr.intent != INTENT_IN) | |
4337 | { | |
4338 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4339 | gfc_charlen_type_node, tmp, | |
4340 | sym->ts.u.cl->backend_decl); | |
4341 | if (sym->attr.optional) | |
4342 | { | |
4343 | tree present = gfc_conv_expr_present (sym); | |
4344 | tmp = build3_loc (input_location, COND_EXPR, | |
4345 | void_type_node, present, tmp, | |
4346 | build_empty_stmt (input_location)); | |
4347 | } | |
4348 | } | |
4349 | else | |
4350 | tmp = NULL_TREE; | |
4351 | ||
4352 | return tmp; | |
4353 | } | |
4354 | ||
a6b22eea | 4355 | |
0d78e4aa PT |
4356 | /* Convert CFI descriptor dummies into gfc types and back again. */ |
4357 | static void | |
4358 | convert_CFI_desc (gfc_wrapped_block * block, gfc_symbol *sym) | |
4359 | { | |
4360 | tree gfc_desc; | |
4361 | tree gfc_desc_ptr; | |
4362 | tree CFI_desc; | |
4363 | tree CFI_desc_ptr; | |
4364 | tree dummy_ptr; | |
4365 | tree tmp; | |
0a524296 | 4366 | tree present; |
0d78e4aa PT |
4367 | tree incoming; |
4368 | tree outgoing; | |
0a524296 | 4369 | stmtblock_t outer_block; |
0d78e4aa PT |
4370 | stmtblock_t tmpblock; |
4371 | ||
4372 | /* dummy_ptr will be the pointer to the passed array descriptor, | |
4373 | while CFI_desc is the descriptor itself. */ | |
4374 | if (DECL_LANG_SPECIFIC (sym->backend_decl)) | |
4375 | CFI_desc = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
4376 | else | |
4377 | CFI_desc = NULL; | |
4378 | ||
4379 | dummy_ptr = CFI_desc; | |
4380 | ||
4381 | if (CFI_desc) | |
4382 | { | |
4383 | CFI_desc = build_fold_indirect_ref_loc (input_location, CFI_desc); | |
4384 | ||
4385 | /* The compiler will have given CFI_desc the correct gfortran | |
4386 | type. Use this new variable to store the converted | |
4387 | descriptor. */ | |
4388 | gfc_desc = gfc_create_var (TREE_TYPE (CFI_desc), "gfc_desc"); | |
4389 | tmp = build_pointer_type (TREE_TYPE (gfc_desc)); | |
4390 | gfc_desc_ptr = gfc_create_var (tmp, "gfc_desc_ptr"); | |
4391 | CFI_desc_ptr = gfc_create_var (pvoid_type_node, "CFI_desc_ptr"); | |
4392 | ||
0a524296 PT |
4393 | /* Fix the condition for the presence of the argument. */ |
4394 | gfc_init_block (&outer_block); | |
4395 | present = fold_build2_loc (input_location, NE_EXPR, | |
4396 | logical_type_node, dummy_ptr, | |
4397 | build_int_cst (TREE_TYPE (dummy_ptr), 0)); | |
4398 | ||
0d78e4aa PT |
4399 | gfc_init_block (&tmpblock); |
4400 | /* Pointer to the gfc descriptor. */ | |
4401 | gfc_add_modify (&tmpblock, gfc_desc_ptr, | |
4402 | gfc_build_addr_expr (NULL, gfc_desc)); | |
4403 | /* Store the pointer to the CFI descriptor. */ | |
4404 | gfc_add_modify (&tmpblock, CFI_desc_ptr, | |
4405 | fold_convert (pvoid_type_node, dummy_ptr)); | |
4406 | tmp = gfc_build_addr_expr (ppvoid_type_node, CFI_desc_ptr); | |
4407 | /* Convert the CFI descriptor. */ | |
4408 | incoming = build_call_expr_loc (input_location, | |
4409 | gfor_fndecl_cfi_to_gfc, 2, gfc_desc_ptr, tmp); | |
4410 | gfc_add_expr_to_block (&tmpblock, incoming); | |
4411 | /* Set the dummy pointer to point to the gfc_descriptor. */ | |
4412 | gfc_add_modify (&tmpblock, dummy_ptr, | |
4413 | fold_convert (TREE_TYPE (dummy_ptr), gfc_desc_ptr)); | |
0d78e4aa | 4414 | |
0a524296 PT |
4415 | /* The hidden string length is not passed to bind(C) procedures so set |
4416 | it from the descriptor element length. */ | |
4417 | if (sym->ts.type == BT_CHARACTER | |
4418 | && sym->ts.u.cl->backend_decl | |
4419 | && VAR_P (sym->ts.u.cl->backend_decl)) | |
4420 | { | |
4421 | tmp = build_fold_indirect_ref_loc (input_location, dummy_ptr); | |
4422 | tmp = gfc_conv_descriptor_elem_len (tmp); | |
4423 | gfc_add_modify (&tmpblock, sym->ts.u.cl->backend_decl, | |
4424 | fold_convert (TREE_TYPE (sym->ts.u.cl->backend_decl), | |
4425 | tmp)); | |
4426 | } | |
4427 | ||
4428 | /* Check that the argument is present before executing the above. */ | |
4429 | incoming = build3_v (COND_EXPR, present, | |
4430 | gfc_finish_block (&tmpblock), | |
4431 | build_empty_stmt (input_location)); | |
4432 | gfc_add_expr_to_block (&outer_block, incoming); | |
4433 | incoming = gfc_finish_block (&outer_block); | |
4434 | ||
4435 | ||
0d78e4aa | 4436 | /* Convert the gfc descriptor back to the CFI type before going |
0a524296 PT |
4437 | out of scope, if the CFI type was present at entry. */ |
4438 | gfc_init_block (&outer_block); | |
4439 | gfc_init_block (&tmpblock); | |
4440 | ||
0d78e4aa PT |
4441 | tmp = gfc_build_addr_expr (ppvoid_type_node, CFI_desc_ptr); |
4442 | outgoing = build_call_expr_loc (input_location, | |
4443 | gfor_fndecl_gfc_to_cfi, 2, tmp, gfc_desc_ptr); | |
4444 | gfc_add_expr_to_block (&tmpblock, outgoing); | |
0a524296 PT |
4445 | |
4446 | outgoing = build3_v (COND_EXPR, present, | |
4447 | gfc_finish_block (&tmpblock), | |
4448 | build_empty_stmt (input_location)); | |
4449 | gfc_add_expr_to_block (&outer_block, outgoing); | |
4450 | outgoing = gfc_finish_block (&outer_block); | |
0d78e4aa PT |
4451 | |
4452 | /* Add the lot to the procedure init and finally blocks. */ | |
4453 | gfc_add_init_cleanup (block, incoming, outgoing); | |
4454 | } | |
4455 | } | |
4456 | ||
a6b22eea PT |
4457 | /* Get the result expression for a procedure. */ |
4458 | ||
4459 | static tree | |
4460 | get_proc_result (gfc_symbol* sym) | |
4461 | { | |
4462 | if (sym->attr.subroutine || sym == sym->result) | |
4463 | { | |
4464 | if (current_fake_result_decl != NULL) | |
4465 | return TREE_VALUE (current_fake_result_decl); | |
4466 | ||
4467 | return NULL_TREE; | |
4468 | } | |
4469 | ||
4470 | return sym->result->backend_decl; | |
4471 | } | |
4472 | ||
4473 | ||
6de9cd9a DN |
4474 | /* Generate function entry and exit code, and add it to the function body. |
4475 | This includes: | |
f8d0aee5 | 4476 | Allocation and initialization of array variables. |
6de9cd9a | 4477 | Allocation of character string variables. |
910450c1 | 4478 | Initialization and possibly repacking of dummy arrays. |
1517fd57 | 4479 | Initialization of ASSIGN statement auxiliary variable. |
571d54de | 4480 | Initialization of ASSOCIATE names. |
1517fd57 | 4481 | Automatic deallocation. */ |
6de9cd9a | 4482 | |
d74d8807 DK |
4483 | void |
4484 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
6de9cd9a DN |
4485 | { |
4486 | locus loc; | |
4487 | gfc_symbol *sym; | |
417ab240 | 4488 | gfc_formal_arglist *f; |
0019d498 | 4489 | stmtblock_t tmpblock; |
7114edca | 4490 | bool seen_trans_deferred_array = false; |
5bab4c96 | 4491 | bool is_pdt_type = false; |
8d51f26f PT |
4492 | tree tmp = NULL; |
4493 | gfc_expr *e; | |
4494 | gfc_se se; | |
4495 | stmtblock_t init; | |
6de9cd9a DN |
4496 | |
4497 | /* Deal with implicit return variables. Explicit return variables will | |
4498 | already have been added. */ | |
4499 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4500 | { | |
4501 | if (!current_fake_result_decl) | |
4502 | { | |
d198b59a JJ |
4503 | gfc_entry_list *el = NULL; |
4504 | if (proc_sym->attr.entry_master) | |
4505 | { | |
4506 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4507 | if (el->sym != el->sym->result) | |
4508 | break; | |
4509 | } | |
766d0c8c | 4510 | /* TODO: move to the appropriate place in resolve.c. */ |
134d2354 | 4511 | if (warn_return_type > 0 && el == NULL) |
48749dbc MLI |
4512 | gfc_warning (OPT_Wreturn_type, |
4513 | "Return value of function %qs at %L not set", | |
766d0c8c | 4514 | proc_sym->name, &proc_sym->declared_at); |
6de9cd9a | 4515 | } |
d198b59a | 4516 | else if (proc_sym->as) |
6de9cd9a | 4517 | { |
417ab240 | 4518 | tree result = TREE_VALUE (current_fake_result_decl); |
8e9218f2 AV |
4519 | gfc_save_backend_locus (&loc); |
4520 | gfc_set_backend_locus (&proc_sym->declared_at); | |
d74d8807 | 4521 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
f5f701ad PT |
4522 | |
4523 | /* An automatic character length, pointer array result. */ | |
4524 | if (proc_sym->ts.type == BT_CHARACTER | |
d168c883 | 4525 | && VAR_P (proc_sym->ts.u.cl->backend_decl)) |
ce1ff48e PT |
4526 | { |
4527 | tmp = NULL; | |
4528 | if (proc_sym->ts.deferred) | |
4529 | { | |
ce1ff48e PT |
4530 | gfc_start_block (&init); |
4531 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4532 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4533 | } | |
4534 | else | |
4535 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4536 | } | |
6de9cd9a DN |
4537 | } |
4538 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4539 | { | |
8d51f26f PT |
4540 | if (proc_sym->ts.deferred) |
4541 | { | |
4542 | tmp = NULL; | |
ceccaacf TB |
4543 | gfc_save_backend_locus (&loc); |
4544 | gfc_set_backend_locus (&proc_sym->declared_at); | |
8d51f26f PT |
4545 | gfc_start_block (&init); |
4546 | /* Zero the string length on entry. */ | |
4547 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4548 | build_int_cst (gfc_charlen_type_node, 0)); | |
4549 | /* Null the pointer. */ | |
4550 | e = gfc_lval_expr_from_sym (proc_sym); | |
4551 | gfc_init_se (&se, NULL); | |
4552 | se.want_pointer = 1; | |
4553 | gfc_conv_expr (&se, e); | |
4554 | gfc_free_expr (e); | |
4555 | tmp = se.expr; | |
4556 | gfc_add_modify (&init, tmp, | |
4557 | fold_convert (TREE_TYPE (se.expr), | |
4558 | null_pointer_node)); | |
ceccaacf | 4559 | gfc_restore_backend_locus (&loc); |
8d51f26f PT |
4560 | |
4561 | /* Pass back the string length on exit. */ | |
afbc5ae8 | 4562 | tmp = proc_sym->ts.u.cl->backend_decl; |
ce1ff48e PT |
4563 | if (TREE_CODE (tmp) != INDIRECT_REF |
4564 | && proc_sym->ts.u.cl->passed_length) | |
afbc5ae8 | 4565 | { |
b62df3bf PT |
4566 | tmp = proc_sym->ts.u.cl->passed_length; |
4567 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
b62df3bf | 4568 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f622221a JB |
4569 | TREE_TYPE (tmp), tmp, |
4570 | fold_convert | |
4571 | (TREE_TYPE (tmp), | |
4572 | proc_sym->ts.u.cl->backend_decl)); | |
afbc5ae8 PT |
4573 | } |
4574 | else | |
4575 | tmp = NULL_TREE; | |
4576 | ||
8d51f26f PT |
4577 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4578 | } | |
d168c883 | 4579 | else if (VAR_P (proc_sym->ts.u.cl->backend_decl)) |
d74d8807 | 4580 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
6de9cd9a DN |
4581 | } |
4582 | else | |
c61819ff | 4583 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
6de9cd9a | 4584 | } |
a6b22eea PT |
4585 | else if (proc_sym == proc_sym->result && IS_CLASS_ARRAY (proc_sym)) |
4586 | { | |
4587 | /* Nullify explicit return class arrays on entry. */ | |
4588 | tree type; | |
4589 | tmp = get_proc_result (proc_sym); | |
4590 | if (tmp && GFC_CLASS_TYPE_P (TREE_TYPE (tmp))) | |
4591 | { | |
4592 | gfc_start_block (&init); | |
4593 | tmp = gfc_class_data_get (tmp); | |
4594 | type = TREE_TYPE (gfc_conv_descriptor_data_get (tmp)); | |
4595 | gfc_conv_descriptor_data_set (&init, tmp, build_int_cst (type, 0)); | |
4596 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); | |
4597 | } | |
4598 | } | |
4599 | ||
6de9cd9a | 4600 | |
d3837072 PT |
4601 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4602 | should be done here so that the offsets and lbounds of arrays | |
4603 | are available. */ | |
ceccaacf TB |
4604 | gfc_save_backend_locus (&loc); |
4605 | gfc_set_backend_locus (&proc_sym->declared_at); | |
d74d8807 | 4606 | init_intent_out_dt (proc_sym, block); |
ceccaacf | 4607 | gfc_restore_backend_locus (&loc); |
d3837072 | 4608 | |
6de9cd9a DN |
4609 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4610 | { | |
ea8b72e6 TB |
4611 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4612 | && (sym->ts.u.derived->attr.alloc_comp | |
4613 | || gfc_is_finalizable (sym->ts.u.derived, | |
4614 | NULL)); | |
571d54de | 4615 | if (sym->assoc) |
6312ef45 JW |
4616 | continue; |
4617 | ||
5bab4c96 PT |
4618 | if (sym->ts.type == BT_DERIVED |
4619 | && sym->ts.u.derived | |
4620 | && sym->ts.u.derived->attr.pdt_type) | |
4621 | { | |
4622 | is_pdt_type = true; | |
4623 | gfc_init_block (&tmpblock); | |
4624 | if (!(sym->attr.dummy | |
4625 | || sym->attr.pointer | |
4626 | || sym->attr.allocatable)) | |
4627 | { | |
4628 | tmp = gfc_allocate_pdt_comp (sym->ts.u.derived, | |
4629 | sym->backend_decl, | |
4630 | sym->as ? sym->as->rank : 0, | |
4631 | sym->param_list); | |
4632 | gfc_add_expr_to_block (&tmpblock, tmp); | |
96acdb8d PT |
4633 | if (!sym->attr.result) |
4634 | tmp = gfc_deallocate_pdt_comp (sym->ts.u.derived, | |
4635 | sym->backend_decl, | |
4636 | sym->as ? sym->as->rank : 0); | |
4637 | else | |
4638 | tmp = NULL_TREE; | |
5bab4c96 PT |
4639 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4640 | } | |
4641 | else if (sym->attr.dummy) | |
4642 | { | |
4643 | tmp = gfc_check_pdt_dummy (sym->ts.u.derived, | |
4644 | sym->backend_decl, | |
4645 | sym->as ? sym->as->rank : 0, | |
4646 | sym->param_list); | |
4647 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4648 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4649 | } | |
4650 | } | |
4651 | else if (sym->ts.type == BT_CLASS | |
4652 | && CLASS_DATA (sym)->ts.u.derived | |
4653 | && CLASS_DATA (sym)->ts.u.derived->attr.pdt_type) | |
4654 | { | |
4655 | gfc_component *data = CLASS_DATA (sym); | |
4656 | is_pdt_type = true; | |
4657 | gfc_init_block (&tmpblock); | |
4658 | if (!(sym->attr.dummy | |
4659 | || CLASS_DATA (sym)->attr.pointer | |
4660 | || CLASS_DATA (sym)->attr.allocatable)) | |
4661 | { | |
4662 | tmp = gfc_class_data_get (sym->backend_decl); | |
4663 | tmp = gfc_allocate_pdt_comp (data->ts.u.derived, tmp, | |
4664 | data->as ? data->as->rank : 0, | |
4665 | sym->param_list); | |
4666 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4667 | tmp = gfc_class_data_get (sym->backend_decl); | |
96acdb8d PT |
4668 | if (!sym->attr.result) |
4669 | tmp = gfc_deallocate_pdt_comp (data->ts.u.derived, tmp, | |
4670 | data->as ? data->as->rank : 0); | |
4671 | else | |
4672 | tmp = NULL_TREE; | |
5bab4c96 PT |
4673 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), tmp); |
4674 | } | |
4675 | else if (sym->attr.dummy) | |
4676 | { | |
4677 | tmp = gfc_class_data_get (sym->backend_decl); | |
4678 | tmp = gfc_check_pdt_dummy (data->ts.u.derived, tmp, | |
4679 | data->as ? data->as->rank : 0, | |
4680 | sym->param_list); | |
4681 | gfc_add_expr_to_block (&tmpblock, tmp); | |
4682 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL); | |
4683 | } | |
4684 | } | |
4685 | ||
ff3598bc | 4686 | if (sym->attr.pointer && sym->attr.dimension |
22d07ec2 | 4687 | && sym->attr.save == SAVE_NONE |
ff3598bc PT |
4688 | && !sym->attr.use_assoc |
4689 | && !sym->attr.host_assoc | |
4690 | && !sym->attr.dummy | |
4691 | && GFC_DESCRIPTOR_TYPE_P (TREE_TYPE (sym->backend_decl))) | |
0c1e1df8 JJ |
4692 | { |
4693 | gfc_init_block (&tmpblock); | |
ff3598bc PT |
4694 | gfc_conv_descriptor_span_set (&tmpblock, sym->backend_decl, |
4695 | build_int_cst (gfc_array_index_type, 0)); | |
0c1e1df8 JJ |
4696 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
4697 | NULL_TREE); | |
4698 | } | |
4699 | ||
e1e3b9d3 | 4700 | if (sym->ts.type == BT_CLASS |
203c7ebf | 4701 | && (sym->attr.save || flag_max_stack_var_size == 0) |
f118468a TB |
4702 | && CLASS_DATA (sym)->attr.allocatable) |
4703 | { | |
4704 | tree vptr; | |
4705 | ||
4706 | if (UNLIMITED_POLY (sym)) | |
4707 | vptr = null_pointer_node; | |
4708 | else | |
4709 | { | |
4710 | gfc_symbol *vsym; | |
4711 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4712 | vptr = gfc_get_symbol_decl (vsym); | |
4713 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4714 | } | |
4715 | ||
4716 | if (CLASS_DATA (sym)->attr.dimension | |
4717 | || (CLASS_DATA (sym)->attr.codimension | |
f19626cf | 4718 | && flag_coarray != GFC_FCOARRAY_LIB)) |
f118468a TB |
4719 | { |
4720 | tmp = gfc_class_data_get (sym->backend_decl); | |
4721 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4722 | } | |
4723 | else | |
4724 | tmp = null_pointer_node; | |
4725 | ||
4726 | DECL_INITIAL (sym->backend_decl) | |
4727 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4728 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4729 | } | |
ce1ff48e PT |
4730 | else if ((sym->attr.dimension || sym->attr.codimension |
4731 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
6de9cd9a | 4732 | { |
f3b0bb7a AV |
4733 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4734 | symbol_attribute *array_attr; | |
4735 | gfc_array_spec *as; | |
ce1ff48e | 4736 | array_type type_of_array; |
f3b0bb7a AV |
4737 | |
4738 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4739 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4740 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
ce1ff48e PT |
4741 | type_of_array = as->type; |
4742 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4743 | type_of_array = AS_EXPLICIT; | |
4744 | switch (type_of_array) | |
6de9cd9a DN |
4745 | { |
4746 | case AS_EXPLICIT: | |
4747 | if (sym->attr.dummy || sym->attr.result) | |
d74d8807 | 4748 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
f3b0bb7a AV |
4749 | /* Allocatable and pointer arrays need to processed |
4750 | explicitly. */ | |
4751 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4752 | || (sym->ts.type == BT_CLASS | |
4753 | && CLASS_DATA (sym)->attr.class_pointer) | |
4754 | || array_attr->allocatable) | |
6de9cd9a DN |
4755 | { |
4756 | if (TREE_STATIC (sym->backend_decl)) | |
ceccaacf TB |
4757 | { |
4758 | gfc_save_backend_locus (&loc); | |
4759 | gfc_set_backend_locus (&sym->declared_at); | |
4760 | gfc_trans_static_array_pointer (sym); | |
4761 | gfc_restore_backend_locus (&loc); | |
4762 | } | |
6de9cd9a | 4763 | else |
7114edca PT |
4764 | { |
4765 | seen_trans_deferred_array = true; | |
d74d8807 | 4766 | gfc_trans_deferred_array (sym, block); |
7114edca | 4767 | } |
6de9cd9a | 4768 | } |
f3b0bb7a AV |
4769 | else if (sym->attr.codimension |
4770 | && TREE_STATIC (sym->backend_decl)) | |
9f3761c5 TB |
4771 | { |
4772 | gfc_init_block (&tmpblock); | |
4773 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4774 | &tmpblock, sym); | |
4775 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4776 | NULL_TREE); | |
4777 | continue; | |
4778 | } | |
b0936265 | 4779 | else |
6de9cd9a | 4780 | { |
ceccaacf TB |
4781 | gfc_save_backend_locus (&loc); |
4782 | gfc_set_backend_locus (&sym->declared_at); | |
4783 | ||
ea8b72e6 | 4784 | if (alloc_comp_or_fini) |
7114edca PT |
4785 | { |
4786 | seen_trans_deferred_array = true; | |
d74d8807 | 4787 | gfc_trans_deferred_array (sym, block); |
7114edca | 4788 | } |
b7b184a8 PT |
4789 | else if (sym->ts.type == BT_DERIVED |
4790 | && sym->value | |
4791 | && !sym->attr.data | |
4792 | && sym->attr.save == SAVE_NONE) | |
0019d498 DK |
4793 | { |
4794 | gfc_start_block (&tmpblock); | |
4795 | gfc_init_default_dt (sym, &tmpblock, false); | |
d74d8807 | 4796 | gfc_add_init_cleanup (block, |
0019d498 DK |
4797 | gfc_finish_block (&tmpblock), |
4798 | NULL_TREE); | |
4799 | } | |
7114edca | 4800 | |
0019d498 | 4801 | gfc_trans_auto_array_allocation (sym->backend_decl, |
d74d8807 | 4802 | sym, block); |
363aab21 | 4803 | gfc_restore_backend_locus (&loc); |
6de9cd9a DN |
4804 | } |
4805 | break; | |
4806 | ||
4807 | case AS_ASSUMED_SIZE: | |
4808 | /* Must be a dummy parameter. */ | |
f3b0bb7a | 4809 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
6de9cd9a DN |
4810 | |
4811 | /* We should always pass assumed size arrays the g77 way. */ | |
b3aefde2 | 4812 | if (sym->attr.dummy) |
d74d8807 | 4813 | gfc_trans_g77_array (sym, block); |
0019d498 | 4814 | break; |
6de9cd9a DN |
4815 | |
4816 | case AS_ASSUMED_SHAPE: | |
4817 | /* Must be a dummy parameter. */ | |
6e45f57b | 4818 | gcc_assert (sym->attr.dummy); |
6de9cd9a | 4819 | |
d74d8807 | 4820 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
6de9cd9a DN |
4821 | break; |
4822 | ||
c62c6622 | 4823 | case AS_ASSUMED_RANK: |
6de9cd9a | 4824 | case AS_DEFERRED: |
7114edca | 4825 | seen_trans_deferred_array = true; |
d74d8807 | 4826 | gfc_trans_deferred_array (sym, block); |
ce1ff48e PT |
4827 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4828 | && sym->attr.result) | |
4829 | { | |
4830 | gfc_start_block (&init); | |
4831 | gfc_save_backend_locus (&loc); | |
4832 | gfc_set_backend_locus (&sym->declared_at); | |
4833 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4834 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4835 | } | |
6de9cd9a DN |
4836 | break; |
4837 | ||
4838 | default: | |
6e45f57b | 4839 | gcc_unreachable (); |
6de9cd9a | 4840 | } |
ea8b72e6 | 4841 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
d74d8807 | 4842 | gfc_trans_deferred_array (sym, block); |
6de9cd9a | 4843 | } |
c49ea23d PT |
4844 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4845 | && (sym->ts.type == BT_CLASS | |
102344e2 | 4846 | && CLASS_DATA (sym)->attr.class_pointer)) |
1b26c26b | 4847 | continue; |
8d51f26f | 4848 | else if ((!sym->attr.dummy || sym->ts.deferred) |
25cbe58f | 4849 | && (sym->attr.allocatable |
ce1ff48e | 4850 | || (sym->attr.pointer && sym->attr.result) |
25cbe58f TB |
4851 | || (sym->ts.type == BT_CLASS |
4852 | && CLASS_DATA (sym)->attr.allocatable))) | |
1517fd57 | 4853 | { |
203c7ebf | 4854 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
64b33a7e | 4855 | { |
5d81ddd0 TB |
4856 | tree descriptor = NULL_TREE; |
4857 | ||
ceccaacf TB |
4858 | gfc_save_backend_locus (&loc); |
4859 | gfc_set_backend_locus (&sym->declared_at); | |
0019d498 | 4860 | gfc_start_block (&init); |
8d51f26f | 4861 | |
d44235fb PT |
4862 | if (sym->ts.type == BT_CHARACTER |
4863 | && sym->attr.allocatable | |
4864 | && !sym->attr.dimension | |
4865 | && sym->ts.u.cl && sym->ts.u.cl->length | |
4866 | && sym->ts.u.cl->length->expr_type == EXPR_VARIABLE) | |
4867 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); | |
4868 | ||
ce1ff48e | 4869 | if (!sym->attr.pointer) |
8d51f26f | 4870 | { |
ce1ff48e PT |
4871 | /* Nullify and automatic deallocation of allocatable |
4872 | scalars. */ | |
4873 | e = gfc_lval_expr_from_sym (sym); | |
4874 | if (sym->ts.type == BT_CLASS) | |
4875 | gfc_add_data_component (e); | |
4876 | ||
4877 | gfc_init_se (&se, NULL); | |
4878 | if (sym->ts.type != BT_CLASS | |
4879 | || sym->ts.u.derived->attr.dimension | |
4880 | || sym->ts.u.derived->attr.codimension) | |
48f316ea | 4881 | { |
ce1ff48e PT |
4882 | se.want_pointer = 1; |
4883 | gfc_conv_expr (&se, e); | |
4884 | } | |
4885 | else if (sym->ts.type == BT_CLASS | |
4886 | && !CLASS_DATA (sym)->attr.dimension | |
4887 | && !CLASS_DATA (sym)->attr.codimension) | |
4888 | { | |
4889 | se.want_pointer = 1; | |
4890 | gfc_conv_expr (&se, e); | |
48f316ea | 4891 | } |
8d51f26f | 4892 | else |
48f316ea | 4893 | { |
ce1ff48e PT |
4894 | se.descriptor_only = 1; |
4895 | gfc_conv_expr (&se, e); | |
4896 | descriptor = se.expr; | |
4897 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4898 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
48f316ea | 4899 | } |
ce1ff48e | 4900 | gfc_free_expr (e); |
8d51f26f | 4901 | |
ce1ff48e | 4902 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
48f316ea | 4903 | { |
ce1ff48e | 4904 | /* Nullify when entering the scope. */ |
48f316ea | 4905 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
ce1ff48e PT |
4906 | TREE_TYPE (se.expr), se.expr, |
4907 | fold_convert (TREE_TYPE (se.expr), | |
4908 | null_pointer_node)); | |
48f316ea TB |
4909 | if (sym->attr.optional) |
4910 | { | |
4911 | tree present = gfc_conv_expr_present (sym); | |
4912 | tmp = build3_loc (input_location, COND_EXPR, | |
4913 | void_type_node, present, tmp, | |
4914 | build_empty_stmt (input_location)); | |
4915 | } | |
ce1ff48e | 4916 | gfc_add_expr_to_block (&init, tmp); |
48f316ea | 4917 | } |
8d51f26f | 4918 | } |
ce1ff48e PT |
4919 | |
4920 | if ((sym->attr.dummy || sym->attr.result) | |
4921 | && sym->ts.type == BT_CHARACTER | |
4922 | && sym->ts.deferred | |
4923 | && sym->ts.u.cl->passed_length) | |
4924 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
ceccaacf | 4925 | else |
77dacf9d PT |
4926 | { |
4927 | gfc_restore_backend_locus (&loc); | |
4928 | tmp = NULL_TREE; | |
4929 | } | |
64b33a7e TB |
4930 | |
4931 | /* Deallocate when leaving the scope. Nullifying is not | |
4932 | needed. */ | |
ce1ff48e | 4933 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
ef292537 | 4934 | && !sym->ns->proc_name->attr.is_main_program) |
5d81ddd0 TB |
4935 | { |
4936 | if (sym->ts.type == BT_CLASS | |
4937 | && CLASS_DATA (sym)->attr.codimension) | |
4938 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4939 | NULL_TREE, NULL_TREE, | |
4940 | NULL_TREE, true, NULL, | |
ba85c8c3 | 4941 | GFC_CAF_COARRAY_ANALYZE); |
5d81ddd0 | 4942 | else |
76c1a7ec TB |
4943 | { |
4944 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
ba85c8c3 AV |
4945 | tmp = gfc_deallocate_scalar_with_status (se.expr, |
4946 | NULL_TREE, | |
4947 | NULL_TREE, | |
4948 | true, expr, | |
4949 | sym->ts); | |
76c1a7ec TB |
4950 | gfc_free_expr (expr); |
4951 | } | |
5d81ddd0 | 4952 | } |
ce1ff48e | 4953 | |
8c077737 JW |
4954 | if (sym->ts.type == BT_CLASS) |
4955 | { | |
4956 | /* Initialize _vptr to declared type. */ | |
8b704316 | 4957 | gfc_symbol *vtab; |
8c077737 | 4958 | tree rhs; |
ceccaacf TB |
4959 | |
4960 | gfc_save_backend_locus (&loc); | |
4961 | gfc_set_backend_locus (&sym->declared_at); | |
8c077737 JW |
4962 | e = gfc_lval_expr_from_sym (sym); |
4963 | gfc_add_vptr_component (e); | |
4964 | gfc_init_se (&se, NULL); | |
4965 | se.want_pointer = 1; | |
4966 | gfc_conv_expr (&se, e); | |
4967 | gfc_free_expr (e); | |
8b704316 PT |
4968 | if (UNLIMITED_POLY (sym)) |
4969 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4970 | else | |
4971 | { | |
4972 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4973 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4974 | gfc_get_symbol_decl (vtab)); | |
4975 | } | |
8c077737 | 4976 | gfc_add_modify (&init, se.expr, rhs); |
ceccaacf | 4977 | gfc_restore_backend_locus (&loc); |
8c077737 JW |
4978 | } |
4979 | ||
d74d8807 | 4980 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
64b33a7e | 4981 | } |
1517fd57 | 4982 | } |
8d51f26f PT |
4983 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4984 | { | |
4985 | tree tmp = NULL; | |
4986 | stmtblock_t init; | |
4987 | ||
4988 | /* If we get to here, all that should be left are pointers. */ | |
4989 | gcc_assert (sym->attr.pointer); | |
4990 | ||
4991 | if (sym->attr.dummy) | |
4992 | { | |
4993 | gfc_start_block (&init); | |
ce1ff48e PT |
4994 | gfc_save_backend_locus (&loc); |
4995 | gfc_set_backend_locus (&sym->declared_at); | |
4996 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
8d51f26f PT |
4997 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4998 | } | |
4999 | } | |
e69afb29 SK |
5000 | else if (sym->ts.deferred) |
5001 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
ea8b72e6 | 5002 | else if (alloc_comp_or_fini) |
d74d8807 | 5003 | gfc_trans_deferred_array (sym, block); |
6de9cd9a DN |
5004 | else if (sym->ts.type == BT_CHARACTER) |
5005 | { | |
363aab21 | 5006 | gfc_save_backend_locus (&loc); |
6de9cd9a DN |
5007 | gfc_set_backend_locus (&sym->declared_at); |
5008 | if (sym->attr.dummy || sym->attr.result) | |
d74d8807 | 5009 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
6de9cd9a | 5010 | else |
d74d8807 | 5011 | gfc_trans_auto_character_variable (sym, block); |
363aab21 | 5012 | gfc_restore_backend_locus (&loc); |
6de9cd9a | 5013 | } |
910450c1 FW |
5014 | else if (sym->attr.assign) |
5015 | { | |
363aab21 | 5016 | gfc_save_backend_locus (&loc); |
910450c1 | 5017 | gfc_set_backend_locus (&sym->declared_at); |
d74d8807 | 5018 | gfc_trans_assign_aux_var (sym, block); |
363aab21 | 5019 | gfc_restore_backend_locus (&loc); |
910450c1 | 5020 | } |
b7b184a8 PT |
5021 | else if (sym->ts.type == BT_DERIVED |
5022 | && sym->value | |
5023 | && !sym->attr.data | |
5024 | && sym->attr.save == SAVE_NONE) | |
0019d498 DK |
5025 | { |
5026 | gfc_start_block (&tmpblock); | |
5027 | gfc_init_default_dt (sym, &tmpblock, false); | |
d74d8807 | 5028 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
0019d498 DK |
5029 | NULL_TREE); |
5030 | } | |
5bab4c96 | 5031 | else if (!(UNLIMITED_POLY(sym)) && !is_pdt_type) |
6e45f57b | 5032 | gcc_unreachable (); |
0d78e4aa PT |
5033 | |
5034 | /* Assumed shape and assumed rank arrays are passed to BIND(C) procedures | |
5035 | as ISO Fortran Interop descriptors. These have to be converted to | |
5036 | gfortran descriptors and back again. This has to be done here so that | |
5037 | the conversion occurs at the start of the init block. */ | |
5038 | if (is_CFI_desc (sym, NULL)) | |
5039 | convert_CFI_desc (block, sym); | |
6de9cd9a DN |
5040 | } |
5041 | ||
0019d498 | 5042 | gfc_init_block (&tmpblock); |
417ab240 | 5043 | |
4cbc9039 | 5044 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
08113c73 | 5045 | { |
0a524296 PT |
5046 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER |
5047 | && f->sym->ts.u.cl->backend_decl) | |
08113c73 | 5048 | { |
bc21d315 | 5049 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) |
0019d498 | 5050 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
08113c73 | 5051 | } |
08113c73 | 5052 | } |
417ab240 JJ |
5053 | |
5054 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
5055 | && current_fake_result_decl != NULL) | |
5056 | { | |
bc21d315 JW |
5057 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
5058 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
0019d498 | 5059 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
417ab240 JJ |
5060 | } |
5061 | ||
d74d8807 | 5062 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
6de9cd9a DN |
5063 | } |
5064 | ||
ce1ff48e | 5065 | |
ca752f39 | 5066 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
a64f5186 | 5067 | { |
2a22f99c | 5068 | typedef const char *compare_type; |
a64f5186 | 5069 | |
2e71b571 ML |
5070 | static hashval_t hash (module_htab_entry *s) |
5071 | { | |
5072 | return htab_hash_string (s->name); | |
5073 | } | |
5074 | ||
2a22f99c TS |
5075 | static bool |
5076 | equal (module_htab_entry *a, const char *b) | |
5077 | { | |
5078 | return !strcmp (a->name, b); | |
5079 | } | |
5080 | }; | |
5081 | ||
5082 | static GTY (()) hash_table<module_hasher> *module_htab; | |
a64f5186 JJ |
5083 | |
5084 | /* Hash and equality functions for module_htab's decls. */ | |
5085 | ||
2a22f99c TS |
5086 | hashval_t |
5087 | module_decl_hasher::hash (tree t) | |
a64f5186 | 5088 | { |
a64f5186 JJ |
5089 | const_tree n = DECL_NAME (t); |
5090 | if (n == NULL_TREE) | |
5091 | n = TYPE_NAME (TREE_TYPE (t)); | |
afdda4b4 | 5092 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
a64f5186 JJ |
5093 | } |
5094 | ||
2a22f99c TS |
5095 | bool |
5096 | module_decl_hasher::equal (tree t1, const char *x2) | |
a64f5186 | 5097 | { |
a64f5186 JJ |
5098 | const_tree n1 = DECL_NAME (t1); |
5099 | if (n1 == NULL_TREE) | |
5100 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2a22f99c | 5101 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
a64f5186 JJ |
5102 | } |
5103 | ||
5104 | struct module_htab_entry * | |
5105 | gfc_find_module (const char *name) | |
5106 | { | |
a64f5186 | 5107 | if (! module_htab) |
2a22f99c | 5108 | module_htab = hash_table<module_hasher>::create_ggc (10); |
a64f5186 | 5109 | |
2a22f99c TS |
5110 | module_htab_entry **slot |
5111 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
a64f5186 JJ |
5112 | if (*slot == NULL) |
5113 | { | |
766090c2 | 5114 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
a64f5186 | 5115 | |
51f03c6b | 5116 | entry->name = gfc_get_string ("%s", name); |
2a22f99c TS |
5117 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
5118 | *slot = entry; | |
a64f5186 | 5119 | } |
2a22f99c | 5120 | return *slot; |
a64f5186 JJ |
5121 | } |
5122 | ||
5123 | void | |
5124 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
5125 | { | |
a64f5186 JJ |
5126 | const char *name; |
5127 | ||
5128 | if (DECL_NAME (decl)) | |
5129 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
5130 | else | |
5131 | { | |
5132 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
5133 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
5134 | } | |
2a22f99c TS |
5135 | tree *slot |
5136 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
5137 | INSERT); | |
a64f5186 | 5138 | if (*slot == NULL) |
2a22f99c | 5139 | *slot = decl; |
a64f5186 JJ |
5140 | } |
5141 | ||
5f673c6a TB |
5142 | |
5143 | /* Generate debugging symbols for namelists. This function must come after | |
5144 | generate_local_decl to ensure that the variables in the namelist are | |
5145 | already declared. */ | |
5146 | ||
5147 | static tree | |
5148 | generate_namelist_decl (gfc_symbol * sym) | |
5149 | { | |
5150 | gfc_namelist *nml; | |
5151 | tree decl; | |
5152 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
5153 | ||
5154 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
5155 | for (nml = sym->namelist; nml; nml = nml->next) | |
5156 | { | |
5157 | if (nml->sym->backend_decl == NULL_TREE) | |
5158 | { | |
5159 | nml->sym->attr.referenced = 1; | |
5160 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
5161 | } | |
96d91784 | 5162 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
5f673c6a TB |
5163 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
5164 | } | |
5165 | ||
5166 | decl = make_node (NAMELIST_DECL); | |
5167 | TREE_TYPE (decl) = void_type_node; | |
5168 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
5169 | DECL_NAME (decl) = get_identifier (sym->name); | |
5170 | return decl; | |
5171 | } | |
5172 | ||
5173 | ||
6de9cd9a DN |
5174 | /* Output an initialized decl for a module variable. */ |
5175 | ||
5176 | static void | |
5177 | gfc_create_module_variable (gfc_symbol * sym) | |
5178 | { | |
5179 | tree decl; | |
6de9cd9a | 5180 | |
1a492601 PT |
5181 | /* Module functions with alternate entries are dealt with later and |
5182 | would get caught by the next condition. */ | |
5183 | if (sym->attr.entry) | |
5184 | return; | |
5185 | ||
a8b3b0b6 CR |
5186 | /* Make sure we convert the types of the derived types from iso_c_binding |
5187 | into (void *). */ | |
5188 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5189 | && sym->ts.type == BT_DERIVED) | |
5190 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
5191 | ||
f6288c24 | 5192 | if (gfc_fl_struct (sym->attr.flavor) |
a64f5186 JJ |
5193 | && sym->backend_decl |
5194 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
5195 | { | |
5196 | decl = sym->backend_decl; | |
5197 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
b8849663 | 5198 | |
cded7919 | 5199 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
b8849663 PT |
5200 | { |
5201 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
5202 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
5203 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
5204 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
5205 | == sym->ns->proc_name->backend_decl); | |
5206 | } | |
a64f5186 JJ |
5207 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
5208 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
5209 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
5210 | } | |
5211 | ||
6e0d2de7 JW |
5212 | /* Only output variables, procedure pointers and array valued, |
5213 | or derived type, parameters. */ | |
6de9cd9a | 5214 | if (sym->attr.flavor != FL_VARIABLE |
fdc55763 | 5215 | && !(sym->attr.flavor == FL_PARAMETER |
6e0d2de7 JW |
5216 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
5217 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
6de9cd9a DN |
5218 | return; |
5219 | ||
a64f5186 JJ |
5220 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
5221 | { | |
5222 | decl = sym->backend_decl; | |
e5b16755 | 5223 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
a64f5186 JJ |
5224 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
5225 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5226 | gfc_module_add_decl (cur_module, decl); | |
5227 | } | |
5228 | ||
9cbf8b41 | 5229 | /* Don't generate variables from other modules. Variables from |
f84c6bd9 | 5230 | COMMONs and Cray pointees will already have been generated. */ |
cded7919 PT |
5231 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
5232 | || sym->attr.in_common || sym->attr.cray_pointee) | |
6de9cd9a DN |
5233 | return; |
5234 | ||
30aabb86 | 5235 | /* Equivalenced variables arrive here after creation. */ |
b95605fb | 5236 | if (sym->backend_decl |
a64f5186 JJ |
5237 | && (sym->equiv_built || sym->attr.in_equivalence)) |
5238 | return; | |
30aabb86 | 5239 | |
80f95228 | 5240 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
17d5d49f TB |
5241 | gfc_internal_error ("backend decl for module variable %qs already exists", |
5242 | sym->name); | |
6de9cd9a | 5243 | |
38945cfe TK |
5244 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
5245 | && (sym->attr.access == ACCESS_UNKNOWN | |
5246 | && (sym->ns->default_access == ACCESS_PRIVATE | |
5247 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
c61819ff | 5248 | && flag_module_private)))) |
38945cfe TK |
5249 | sym->attr.access = ACCESS_PRIVATE; |
5250 | ||
5251 | if (warn_unused_variable && !sym->attr.referenced | |
5252 | && sym->attr.access == ACCESS_PRIVATE) | |
48749dbc MLI |
5253 | gfc_warning (OPT_Wunused_value, |
5254 | "Unused PRIVATE module variable %qs declared at %L", | |
38945cfe TK |
5255 | sym->name, &sym->declared_at); |
5256 | ||
6de9cd9a DN |
5257 | /* We always want module variables to be created. */ |
5258 | sym->attr.referenced = 1; | |
5259 | /* Create the decl. */ | |
5260 | decl = gfc_get_symbol_decl (sym); | |
5261 | ||
6de9cd9a DN |
5262 | /* Create the variable. */ |
5263 | pushdecl (decl); | |
345bd7eb PT |
5264 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE |
5265 | || (sym->ns->parent->proc_name->attr.flavor == FL_MODULE | |
5266 | && sym->fn_result_spec)); | |
a64f5186 | 5267 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
0e6df31e | 5268 | rest_of_decl_compilation (decl, 1, 0); |
a64f5186 | 5269 | gfc_module_add_decl (cur_module, decl); |
6de9cd9a DN |
5270 | |
5271 | /* Also add length of strings. */ | |
5272 | if (sym->ts.type == BT_CHARACTER) | |
5273 | { | |
5274 | tree length; | |
5275 | ||
bc21d315 | 5276 | length = sym->ts.u.cl->backend_decl; |
9c4174d8 PT |
5277 | gcc_assert (length || sym->attr.proc_pointer); |
5278 | if (length && !INTEGER_CST_P (length)) | |
6de9cd9a DN |
5279 | { |
5280 | pushdecl (length); | |
0e6df31e | 5281 | rest_of_decl_compilation (length, 1, 0); |
6de9cd9a DN |
5282 | } |
5283 | } | |
b8ff4e88 TB |
5284 | |
5285 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
5286 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5287 | has_coarray_vars = true; | |
6de9cd9a DN |
5288 | } |
5289 | ||
9268ba9a | 5290 | /* Emit debug information for USE statements. */ |
a64f5186 JJ |
5291 | |
5292 | static void | |
5293 | gfc_trans_use_stmts (gfc_namespace * ns) | |
5294 | { | |
5295 | gfc_use_list *use_stmt; | |
5296 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
5297 | { | |
5298 | struct module_htab_entry *entry | |
5299 | = gfc_find_module (use_stmt->module_name); | |
5300 | gfc_use_rename *rent; | |
5301 | ||
5302 | if (entry->namespace_decl == NULL) | |
5303 | { | |
5304 | entry->namespace_decl | |
c2255bc4 AH |
5305 | = build_decl (input_location, |
5306 | NAMESPACE_DECL, | |
a64f5186 JJ |
5307 | get_identifier (use_stmt->module_name), |
5308 | void_type_node); | |
5309 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
5310 | } | |
9268ba9a | 5311 | gfc_set_backend_locus (&use_stmt->where); |
a64f5186 JJ |
5312 | if (!use_stmt->only_flag) |
5313 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
5314 | NULL_TREE, | |
5315 | ns->proc_name->backend_decl, | |
e071b767 | 5316 | false, false); |
a64f5186 JJ |
5317 | for (rent = use_stmt->rename; rent; rent = rent->next) |
5318 | { | |
5319 | tree decl, local_name; | |
a64f5186 JJ |
5320 | |
5321 | if (rent->op != INTRINSIC_NONE) | |
5322 | continue; | |
5323 | ||
2a22f99c TS |
5324 | hashval_t hash = htab_hash_string (rent->use_name); |
5325 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
5326 | INSERT); | |
a64f5186 JJ |
5327 | if (*slot == NULL) |
5328 | { | |
5329 | gfc_symtree *st; | |
5330 | ||
5331 | st = gfc_find_symtree (ns->sym_root, | |
5332 | rent->local_name[0] | |
5333 | ? rent->local_name : rent->use_name); | |
c3f34952 TB |
5334 | |
5335 | /* The following can happen if a derived type is renamed. */ | |
5336 | if (!st) | |
5337 | { | |
5338 | char *name; | |
5339 | name = xstrdup (rent->local_name[0] | |
5340 | ? rent->local_name : rent->use_name); | |
5341 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
5342 | st = gfc_find_symtree (ns->sym_root, name); | |
5343 | free (name); | |
5344 | gcc_assert (st); | |
5345 | } | |
1151ccc9 PT |
5346 | |
5347 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
5348 | local symbol (see PR41062). */ | |
5349 | if (!st->n.sym->attr.use_assoc) | |
5350 | continue; | |
5351 | ||
9268ba9a JJ |
5352 | if (st->n.sym->backend_decl |
5353 | && DECL_P (st->n.sym->backend_decl) | |
5354 | && st->n.sym->module | |
5355 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
a64f5186 | 5356 | { |
9268ba9a | 5357 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
d168c883 | 5358 | || !VAR_P (st->n.sym->backend_decl)); |
a64f5186 JJ |
5359 | decl = copy_node (st->n.sym->backend_decl); |
5360 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5361 | DECL_EXTERNAL (decl) = 1; | |
5362 | DECL_IGNORED_P (decl) = 0; | |
5363 | DECL_INITIAL (decl) = NULL_TREE; | |
5364 | } | |
5f673c6a TB |
5365 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
5366 | && st->n.sym->attr.use_only | |
5367 | && st->n.sym->module | |
5368 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
5369 | == 0) | |
5370 | { | |
5371 | decl = generate_namelist_decl (st->n.sym); | |
5372 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
5373 | DECL_EXTERNAL (decl) = 1; | |
5374 | DECL_IGNORED_P (decl) = 0; | |
5375 | DECL_INITIAL (decl) = NULL_TREE; | |
5376 | } | |
a64f5186 JJ |
5377 | else |
5378 | { | |
5379 | *slot = error_mark_node; | |
2a22f99c | 5380 | entry->decls->clear_slot (slot); |
a64f5186 JJ |
5381 | continue; |
5382 | } | |
5383 | *slot = decl; | |
5384 | } | |
5385 | decl = (tree) *slot; | |
5386 | if (rent->local_name[0]) | |
5387 | local_name = get_identifier (rent->local_name); | |
5388 | else | |
5389 | local_name = NULL_TREE; | |
9268ba9a | 5390 | gfc_set_backend_locus (&rent->where); |
a64f5186 JJ |
5391 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
5392 | ns->proc_name->backend_decl, | |
e071b767 JJ |
5393 | !use_stmt->only_flag, |
5394 | false); | |
a64f5186 JJ |
5395 | } |
5396 | } | |
6de9cd9a DN |
5397 | } |
5398 | ||
9268ba9a | 5399 | |
bd11e37d JJ |
5400 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
5401 | will handle. */ | |
5402 | ||
5403 | static bool | |
5404 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
5405 | bool pointer) | |
5406 | { | |
5407 | gfc_constructor *c; | |
5408 | gfc_component *cm; | |
5409 | ||
5410 | if (pointer) | |
5411 | return true; | |
5412 | else if (array) | |
5413 | { | |
5414 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
5415 | return true; | |
5416 | else if (expr->expr_type == EXPR_STRUCTURE) | |
5417 | return check_constant_initializer (expr, ts, false, false); | |
5418 | else if (expr->expr_type != EXPR_ARRAY) | |
5419 | return false; | |
b7e75771 JD |
5420 | for (c = gfc_constructor_first (expr->value.constructor); |
5421 | c; c = gfc_constructor_next (c)) | |
bd11e37d JJ |
5422 | { |
5423 | if (c->iterator) | |
5424 | return false; | |
5425 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
5426 | { | |
5427 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
5428 | return false; | |
5429 | } | |
5430 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
5431 | return false; | |
5432 | } | |
5433 | return true; | |
5434 | } | |
5435 | else switch (ts->type) | |
5436 | { | |
f6288c24 | 5437 | case_bt_struct: |
bd11e37d JJ |
5438 | if (expr->expr_type != EXPR_STRUCTURE) |
5439 | return false; | |
bc21d315 | 5440 | cm = expr->ts.u.derived->components; |
b7e75771 JD |
5441 | for (c = gfc_constructor_first (expr->value.constructor); |
5442 | c; c = gfc_constructor_next (c), cm = cm->next) | |
bd11e37d JJ |
5443 | { |
5444 | if (!c->expr || cm->attr.allocatable) | |
5445 | continue; | |
5446 | if (!check_constant_initializer (c->expr, &cm->ts, | |
5447 | cm->attr.dimension, | |
5448 | cm->attr.pointer)) | |
5449 | return false; | |
5450 | } | |
5451 | return true; | |
5452 | default: | |
5453 | return expr->expr_type == EXPR_CONSTANT; | |
5454 | } | |
5455 | } | |
5456 | ||
5457 | /* Emit debug info for parameters and unreferenced variables with | |
5458 | initializers. */ | |
5459 | ||
5460 | static void | |
5461 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
5462 | { | |
5463 | tree decl; | |
5464 | ||
5465 | if (sym->attr.flavor != FL_PARAMETER | |
5466 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
5467 | return; | |
5468 | ||
5469 | if (sym->backend_decl != NULL | |
5470 | || sym->value == NULL | |
5471 | || sym->attr.use_assoc | |
5472 | || sym->attr.dummy | |
5473 | || sym->attr.result | |
5474 | || sym->attr.function | |
5475 | || sym->attr.intrinsic | |
5476 | || sym->attr.pointer | |
5477 | || sym->attr.allocatable | |
5478 | || sym->attr.cray_pointee | |
5479 | || sym->attr.threadprivate | |
5480 | || sym->attr.is_bind_c | |
5481 | || sym->attr.subref_array_pointer | |
5482 | || sym->attr.assign) | |
5483 | return; | |
5484 | ||
5485 | if (sym->ts.type == BT_CHARACTER) | |
5486 | { | |
bc21d315 JW |
5487 | gfc_conv_const_charlen (sym->ts.u.cl); |
5488 | if (sym->ts.u.cl->backend_decl == NULL | |
5489 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
bd11e37d JJ |
5490 | return; |
5491 | } | |
bc21d315 | 5492 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
bd11e37d JJ |
5493 | return; |
5494 | ||
5495 | if (sym->as) | |
5496 | { | |
5497 | int n; | |
5498 | ||
5499 | if (sym->as->type != AS_EXPLICIT) | |
5500 | return; | |
5501 | for (n = 0; n < sym->as->rank; n++) | |
5502 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
5503 | || sym->as->upper[n] == NULL | |
5504 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
5505 | return; | |
5506 | } | |
5507 | ||
5508 | if (!check_constant_initializer (sym->value, &sym->ts, | |
5509 | sym->attr.dimension, false)) | |
5510 | return; | |
5511 | ||
f19626cf | 5512 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
b8ff4e88 TB |
5513 | return; |
5514 | ||
bd11e37d | 5515 | /* Create the decl for the variable or constant. */ |
c2255bc4 AH |
5516 | decl = build_decl (input_location, |
5517 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
bd11e37d JJ |
5518 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
5519 | if (sym->attr.flavor == FL_PARAMETER) | |
5520 | TREE_READONLY (decl) = 1; | |
5521 | gfc_set_decl_location (decl, &sym->declared_at); | |
5522 | if (sym->attr.dimension) | |
5523 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
5524 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5525 | TREE_STATIC (decl) = 1; | |
5526 | TREE_USED (decl) = 1; | |
5527 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
5528 | TREE_PUBLIC (decl) = 1; | |
1d0134b3 JW |
5529 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
5530 | TREE_TYPE (decl), | |
5531 | sym->attr.dimension, | |
5532 | false, false); | |
d7438551 | 5533 | debug_hooks->early_global_decl (decl); |
bd11e37d JJ |
5534 | } |
5535 | ||
b8ff4e88 TB |
5536 | |
5537 | static void | |
5538 | generate_coarray_sym_init (gfc_symbol *sym) | |
5539 | { | |
3c9f5092 | 5540 | tree tmp, size, decl, token, desc; |
5df445a2 | 5541 | bool is_lock_type, is_event_type; |
bc0229f9 | 5542 | int reg_type; |
3c9f5092 AV |
5543 | gfc_se se; |
5544 | symbol_attribute attr; | |
b8ff4e88 TB |
5545 | |
5546 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
d7463e5b TB |
5547 | || sym->attr.use_assoc || !sym->attr.referenced |
5548 | || sym->attr.select_type_temporary) | |
b8ff4e88 TB |
5549 | return; |
5550 | ||
5551 | decl = sym->backend_decl; | |
5552 | TREE_USED(decl) = 1; | |
5553 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
5554 | ||
bc0229f9 TB |
5555 | is_lock_type = sym->ts.type == BT_DERIVED |
5556 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5557 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
5558 | ||
5df445a2 TB |
5559 | is_event_type = sym->ts.type == BT_DERIVED |
5560 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
5561 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
5562 | ||
b8ff4e88 TB |
5563 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
5564 | to make sure the variable is not optimized away. */ | |
5565 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
5566 | ||
bc0229f9 TB |
5567 | /* For lock types, we pass the array size as only the library knows the |
5568 | size of the variable. */ | |
5df445a2 | 5569 | if (is_lock_type || is_event_type) |
bc0229f9 TB |
5570 | size = gfc_index_one_node; |
5571 | else | |
5572 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
b8ff4e88 | 5573 | |
8b704316 | 5574 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
107a9bc9 TB |
5575 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
5576 | fold_convert (size_type_node, size), | |
5577 | build_int_cst (size_type_node, 1)); | |
5578 | ||
b8ff4e88 TB |
5579 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5580 | { | |
5581 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5582 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
107a9bc9 | 5583 | fold_convert (size_type_node, tmp), size); |
b8ff4e88 TB |
5584 | } |
5585 | ||
5586 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5587 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5588 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
bc0229f9 TB |
5589 | if (is_lock_type) |
5590 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
5df445a2 TB |
5591 | else if (is_event_type) |
5592 | reg_type = GFC_CAF_EVENT_STATIC; | |
bc0229f9 TB |
5593 | else |
5594 | reg_type = GFC_CAF_COARRAY_STATIC; | |
3c9f5092 | 5595 | |
ea06c7b0 AV |
5596 | /* Compile the symbol attribute. */ |
5597 | if (sym->ts.type == BT_CLASS) | |
5598 | { | |
5599 | attr = CLASS_DATA (sym)->attr; | |
5600 | /* The pointer attribute is always set on classes, overwrite it with the | |
5601 | class_pointer attribute, which denotes the pointer for classes. */ | |
5602 | attr.pointer = attr.class_pointer; | |
5603 | } | |
5604 | else | |
5605 | attr = sym->attr; | |
3c9f5092 AV |
5606 | gfc_init_se (&se, NULL); |
5607 | desc = gfc_conv_scalar_to_descriptor (&se, decl, attr); | |
5608 | gfc_add_block_to_block (&caf_init_block, &se.pre); | |
5609 | ||
5610 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 7, size, | |
bc0229f9 | 5611 | build_int_cst (integer_type_node, reg_type), |
3c9f5092 AV |
5612 | token, gfc_build_addr_expr (pvoid_type_node, desc), |
5613 | null_pointer_node, /* stat. */ | |
ba85c8c3 | 5614 | null_pointer_node, /* errgmsg. */ |
3f5fabc0 | 5615 | build_zero_cst (size_type_node)); /* errmsg_len. */ |
3c9f5092 AV |
5616 | gfc_add_expr_to_block (&caf_init_block, tmp); |
5617 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), | |
5618 | gfc_conv_descriptor_data_get (desc))); | |
b8ff4e88 | 5619 | |
b8ff4e88 TB |
5620 | /* Handle "static" initializer. */ |
5621 | if (sym->value) | |
5622 | { | |
9dbdefbb TK |
5623 | if (sym->value->expr_type == EXPR_ARRAY) |
5624 | { | |
5625 | gfc_constructor *c, *cnext; | |
5626 | ||
5627 | /* Test if the array has more than one element. */ | |
5628 | c = gfc_constructor_first (sym->value->value.constructor); | |
5629 | gcc_assert (c); /* Empty constructor should not happen here. */ | |
5630 | cnext = gfc_constructor_next (c); | |
5631 | ||
5632 | if (cnext) | |
5633 | { | |
5634 | /* An EXPR_ARRAY with a rank > 1 here has to come from a | |
5635 | DATA statement. Set its rank here as not to confuse | |
5636 | the following steps. */ | |
5637 | sym->value->rank = 1; | |
5638 | } | |
5639 | else | |
5640 | { | |
5641 | /* There is only a single value in the constructor, use | |
5642 | it directly for the assignment. */ | |
5643 | gfc_expr *new_expr; | |
5644 | new_expr = gfc_copy_expr (c->expr); | |
5645 | gfc_free_expr (sym->value); | |
5646 | sym->value = new_expr; | |
5647 | } | |
5648 | } | |
5649 | ||
b8ff4e88 TB |
5650 | sym->attr.pointer = 1; |
5651 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5652 | true, false); | |
5653 | sym->attr.pointer = 0; | |
5654 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5655 | } | |
de91486c AV |
5656 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.pointer_comp) |
5657 | { | |
5658 | tmp = gfc_nullify_alloc_comp (sym->ts.u.derived, decl, sym->as | |
5659 | ? sym->as->rank : 0, | |
5660 | GFC_STRUCTURE_CAF_MODE_IN_COARRAY); | |
5661 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5662 | } | |
b8ff4e88 TB |
5663 | } |
5664 | ||
5665 | ||
5666 | /* Generate constructor function to initialize static, nonallocatable | |
5667 | coarrays. */ | |
5668 | ||
5669 | static void | |
5670 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5671 | { | |
5672 | tree fndecl, tmp, decl, save_fn_decl; | |
5673 | ||
5674 | save_fn_decl = current_function_decl; | |
5675 | push_function_context (); | |
5676 | ||
5677 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5678 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5679 | create_tmp_var_name ("_caf_init"), tmp); | |
5680 | ||
5681 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5682 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5683 | ||
5684 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5685 | DECL_ARTIFICIAL (decl) = 1; | |
5686 | DECL_IGNORED_P (decl) = 1; | |
5687 | DECL_CONTEXT (decl) = fndecl; | |
5688 | DECL_RESULT (fndecl) = decl; | |
5689 | ||
5690 | pushdecl (fndecl); | |
5691 | current_function_decl = fndecl; | |
5692 | announce_function (fndecl); | |
5693 | ||
5694 | rest_of_decl_compilation (fndecl, 0, 0); | |
5695 | make_decl_rtl (fndecl); | |
b6b27e98 | 5696 | allocate_struct_function (fndecl, false); |
b8ff4e88 | 5697 | |
87a60f68 | 5698 | pushlevel (); |
b8ff4e88 TB |
5699 | gfc_init_block (&caf_init_block); |
5700 | ||
5701 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5702 | ||
5703 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5704 | decl = getdecls (); | |
5705 | ||
87a60f68 | 5706 | poplevel (1, 1); |
b8ff4e88 TB |
5707 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5708 | ||
5709 | DECL_SAVED_TREE (fndecl) | |
5710 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5711 | DECL_INITIAL (fndecl)); | |
5712 | dump_function (TDI_original, fndecl); | |
5713 | ||
5714 | cfun->function_end_locus = input_location; | |
5715 | set_cfun (NULL); | |
5716 | ||
5717 | if (decl_function_context (fndecl)) | |
d52f5295 | 5718 | (void) cgraph_node::create (fndecl); |
b8ff4e88 | 5719 | else |
3dafb85c | 5720 | cgraph_node::finalize_function (fndecl, true); |
b8ff4e88 TB |
5721 | |
5722 | pop_function_context (); | |
5723 | current_function_decl = save_fn_decl; | |
5724 | } | |
5725 | ||
5726 | ||
5f673c6a TB |
5727 | static void |
5728 | create_module_nml_decl (gfc_symbol *sym) | |
5729 | { | |
5730 | if (sym->attr.flavor == FL_NAMELIST) | |
5731 | { | |
5732 | tree decl = generate_namelist_decl (sym); | |
5733 | pushdecl (decl); | |
5734 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5735 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5736 | rest_of_decl_compilation (decl, 1, 0); | |
5737 | gfc_module_add_decl (cur_module, decl); | |
5738 | } | |
5739 | } | |
5740 | ||
5741 | ||
9268ba9a JJ |
5742 | /* Generate all the required code for module variables. */ |
5743 | ||
5744 | void | |
5745 | gfc_generate_module_vars (gfc_namespace * ns) | |
5746 | { | |
5747 | module_namespace = ns; | |
5748 | cur_module = gfc_find_module (ns->proc_name->name); | |
5749 | ||
5750 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5751 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5752 | ||
5753 | /* Generate COMMON blocks. */ | |
5754 | gfc_trans_common (ns); | |
5755 | ||
b8ff4e88 TB |
5756 | has_coarray_vars = false; |
5757 | ||
9268ba9a JJ |
5758 | /* Create decls for all the module variables. */ |
5759 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
5f673c6a | 5760 | gfc_traverse_ns (ns, create_module_nml_decl); |
9268ba9a | 5761 | |
f19626cf | 5762 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
5763 | generate_coarray_init (ns); |
5764 | ||
9268ba9a JJ |
5765 | cur_module = NULL; |
5766 | ||
5767 | gfc_trans_use_stmts (ns); | |
bd11e37d | 5768 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
9268ba9a JJ |
5769 | } |
5770 | ||
5771 | ||
6de9cd9a DN |
5772 | static void |
5773 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5774 | { | |
5775 | gfc_namespace *ns; | |
5776 | ||
5777 | /* We create all the prototypes before generating any code. */ | |
5778 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5779 | { | |
5780 | /* Skip namespaces from used modules. */ | |
5781 | if (ns->parent != parent) | |
5782 | continue; | |
5783 | ||
fb55ca75 | 5784 | gfc_create_function_decl (ns, false); |
6de9cd9a DN |
5785 | } |
5786 | ||
5787 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5788 | { | |
5789 | /* Skip namespaces from used modules. */ | |
5790 | if (ns->parent != parent) | |
5791 | continue; | |
5792 | ||
5793 | gfc_generate_function_code (ns); | |
5794 | } | |
5795 | } | |
5796 | ||
5797 | ||
3e978d30 PT |
5798 | /* Drill down through expressions for the array specification bounds and |
5799 | character length calling generate_local_decl for all those variables | |
5800 | that have not already been declared. */ | |
5801 | ||
5802 | static void | |
5803 | generate_local_decl (gfc_symbol *); | |
5804 | ||
908a2235 | 5805 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
3e978d30 | 5806 | |
908a2235 PT |
5807 | static bool |
5808 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5809 | int *f ATTRIBUTE_UNUSED) | |
5810 | { | |
5811 | if (e->expr_type != EXPR_VARIABLE | |
5812 | || sym == e->symtree->n.sym | |
3e978d30 PT |
5813 | || e->symtree->n.sym->mark |
5814 | || e->symtree->n.sym->ns != sym->ns) | |
908a2235 | 5815 | return false; |
3e978d30 | 5816 | |
908a2235 PT |
5817 | generate_local_decl (e->symtree->n.sym); |
5818 | return false; | |
5819 | } | |
3e978d30 | 5820 | |
908a2235 PT |
5821 | static void |
5822 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5823 | { | |
5824 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
3e978d30 PT |
5825 | } |
5826 | ||
5827 | ||
66e4ab31 | 5828 | /* Check for dependencies in the character length and array spec. */ |
3e978d30 PT |
5829 | |
5830 | static void | |
5831 | generate_dependency_declarations (gfc_symbol *sym) | |
5832 | { | |
5833 | int i; | |
5834 | ||
5835 | if (sym->ts.type == BT_CHARACTER | |
bc21d315 JW |
5836 | && sym->ts.u.cl |
5837 | && sym->ts.u.cl->length | |
5838 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5839 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
3e978d30 PT |
5840 | |
5841 | if (sym->as && sym->as->rank) | |
5842 | { | |
5843 | for (i = 0; i < sym->as->rank; i++) | |
5844 | { | |
5845 | generate_expr_decls (sym, sym->as->lower[i]); | |
5846 | generate_expr_decls (sym, sym->as->upper[i]); | |
5847 | } | |
5848 | } | |
5849 | } | |
5850 | ||
5851 | ||
6de9cd9a DN |
5852 | /* Generate decls for all local variables. We do this to ensure correct |
5853 | handling of expressions which only appear in the specification of | |
5854 | other functions. */ | |
5855 | ||
5856 | static void | |
5857 | generate_local_decl (gfc_symbol * sym) | |
5858 | { | |
5859 | if (sym->attr.flavor == FL_VARIABLE) | |
5860 | { | |
b8ff4e88 TB |
5861 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5862 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5863 | has_coarray_vars = true; | |
5864 | ||
3e978d30 | 5865 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
2c69d527 | 5866 | generate_dependency_declarations (sym); |
3e978d30 | 5867 | |
6de9cd9a | 5868 | if (sym->attr.referenced) |
2c69d527 | 5869 | gfc_get_symbol_decl (sym); |
4ed44ccc DF |
5870 | |
5871 | /* Warnings for unused dummy arguments. */ | |
c8877f40 | 5872 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
ad6d42e1 | 5873 | { |
4ed44ccc | 5874 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
73e42eef | 5875 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4ed44ccc DF |
5876 | { |
5877 | if (sym->ts.type != BT_DERIVED) | |
48749dbc MLI |
5878 | gfc_warning (OPT_Wunused_dummy_argument, |
5879 | "Dummy argument %qs at %L was declared " | |
4ed44ccc DF |
5880 | "INTENT(OUT) but was not set", sym->name, |
5881 | &sym->declared_at); | |
bf7a6c1c JW |
5882 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5883 | && !sym->ts.u.derived->attr.zero_comp) | |
48749dbc MLI |
5884 | gfc_warning (OPT_Wunused_dummy_argument, |
5885 | "Derived-type dummy argument %qs at %L was " | |
4ed44ccc DF |
5886 | "declared INTENT(OUT) but was not set and " |
5887 | "does not have a default initializer", | |
5888 | sym->name, &sym->declared_at); | |
fba5ace0 TB |
5889 | if (sym->backend_decl != NULL_TREE) |
5890 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4ed44ccc | 5891 | } |
73e42eef | 5892 | else if (warn_unused_dummy_argument) |
fba5ace0 | 5893 | { |
e0b9e5f9 TK |
5894 | if (!sym->attr.artificial) |
5895 | gfc_warning (OPT_Wunused_dummy_argument, | |
5896 | "Unused dummy argument %qs at %L", sym->name, | |
5897 | &sym->declared_at); | |
5898 | ||
fba5ace0 TB |
5899 | if (sym->backend_decl != NULL_TREE) |
5900 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5901 | } | |
ad6d42e1 | 5902 | } |
4ed44ccc | 5903 | |
f8d0aee5 | 5904 | /* Warn for unused variables, but not if they're inside a common |
ecdbf2cd | 5905 | block or a namelist. */ |
ce738b86 | 5906 | else if (warn_unused_variable |
ecdbf2cd | 5907 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
fba5ace0 | 5908 | { |
ecdbf2cd JW |
5909 | if (sym->attr.use_only) |
5910 | { | |
48749dbc MLI |
5911 | gfc_warning (OPT_Wunused_variable, |
5912 | "Unused module variable %qs which has been " | |
ecdbf2cd JW |
5913 | "explicitly imported at %L", sym->name, |
5914 | &sym->declared_at); | |
5915 | if (sym->backend_decl != NULL_TREE) | |
5916 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5917 | } | |
5918 | else if (!sym->attr.use_assoc) | |
5919 | { | |
ad7a5a8f SK |
5920 | /* Corner case: the symbol may be an entry point. At this point, |
5921 | it may appear to be an unused variable. Suppress warning. */ | |
5922 | bool enter = false; | |
5923 | gfc_entry_list *el; | |
5924 | ||
5925 | for (el = sym->ns->entries; el; el=el->next) | |
5926 | if (strcmp(sym->name, el->sym->name) == 0) | |
5927 | enter = true; | |
5928 | ||
5929 | if (!enter) | |
5930 | gfc_warning (OPT_Wunused_variable, | |
5931 | "Unused variable %qs declared at %L", | |
5932 | sym->name, &sym->declared_at); | |
ecdbf2cd JW |
5933 | if (sym->backend_decl != NULL_TREE) |
5934 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5935 | } | |
fba5ace0 | 5936 | } |
2c69d527 | 5937 | |
417ab240 JJ |
5938 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5939 | references the length variable, so force gfc_get_symbol_decl | |
5940 | even when not referenced. If optimize > 0, it will be optimized | |
5941 | away anyway. But do this only after emitting -Wunused-parameter | |
5942 | warning if requested. */ | |
2c69d527 PT |
5943 | if (sym->attr.dummy && !sym->attr.referenced |
5944 | && sym->ts.type == BT_CHARACTER | |
bc21d315 | 5945 | && sym->ts.u.cl->backend_decl != NULL |
d168c883 | 5946 | && VAR_P (sym->ts.u.cl->backend_decl)) |
417ab240 JJ |
5947 | { |
5948 | sym->attr.referenced = 1; | |
5949 | gfc_get_symbol_decl (sym); | |
5950 | } | |
534fd534 | 5951 | |
5af2eace PT |
5952 | /* INTENT(out) dummy arguments and result variables with allocatable |
5953 | components are reset by default and need to be set referenced to | |
5954 | generate the code for nullification and automatic lengths. */ | |
5955 | if (!sym->attr.referenced | |
2c69d527 | 5956 | && sym->ts.type == BT_DERIVED |
bc21d315 | 5957 | && sym->ts.u.derived->attr.alloc_comp |
758e12af | 5958 | && !sym->attr.pointer |
5af2eace PT |
5959 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5960 | || | |
5961 | (sym->attr.result && sym != sym->result))) | |
2c69d527 PT |
5962 | { |
5963 | sym->attr.referenced = 1; | |
5964 | gfc_get_symbol_decl (sym); | |
5965 | } | |
5966 | ||
06c7153f TB |
5967 | /* Check for dependencies in the array specification and string |
5968 | length, adding the necessary declarations to the function. We | |
5969 | mark the symbol now, as well as in traverse_ns, to prevent | |
5970 | getting stuck in a circular dependency. */ | |
5971 | sym->mark = 1; | |
6de9cd9a | 5972 | } |
33c0c5e9 DF |
5973 | else if (sym->attr.flavor == FL_PARAMETER) |
5974 | { | |
d92693b4 | 5975 | if (warn_unused_parameter |
dbad8e71 TB |
5976 | && !sym->attr.referenced) |
5977 | { | |
5978 | if (!sym->attr.use_assoc) | |
48749dbc MLI |
5979 | gfc_warning (OPT_Wunused_parameter, |
5980 | "Unused parameter %qs declared at %L", sym->name, | |
dbad8e71 TB |
5981 | &sym->declared_at); |
5982 | else if (sym->attr.use_only) | |
48749dbc MLI |
5983 | gfc_warning (OPT_Wunused_parameter, |
5984 | "Unused parameter %qs which has been explicitly " | |
dbad8e71 TB |
5985 | "imported at %L", sym->name, &sym->declared_at); |
5986 | } | |
285b1f01 | 5987 | |
30253e23 | 5988 | if (sym->ns && sym->ns->construct_entities) |
285b1f01 SK |
5989 | { |
5990 | if (sym->attr.referenced) | |
5991 | gfc_get_symbol_decl (sym); | |
5992 | sym->mark = 1; | |
5993 | } | |
33c0c5e9 | 5994 | } |
766d0c8c DF |
5995 | else if (sym->attr.flavor == FL_PROCEDURE) |
5996 | { | |
5997 | /* TODO: move to the appropriate place in resolve.c. */ | |
134d2354 | 5998 | if (warn_return_type > 0 |
766d0c8c DF |
5999 | && sym->attr.function |
6000 | && sym->result | |
6001 | && sym != sym->result | |
6002 | && !sym->result->attr.referenced | |
6003 | && !sym->attr.use_assoc | |
6004 | && sym->attr.if_source != IFSRC_IFBODY) | |
6005 | { | |
48749dbc MLI |
6006 | gfc_warning (OPT_Wreturn_type, |
6007 | "Return value %qs of function %qs declared at " | |
766d0c8c DF |
6008 | "%L not set", sym->result->name, sym->name, |
6009 | &sym->result->declared_at); | |
6010 | ||
6011 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
06c7153f | 6012 | sym->result->mark = 1; |
766d0c8c DF |
6013 | } |
6014 | } | |
a8b3b0b6 | 6015 | |
8b16d231 CR |
6016 | if (sym->attr.dummy == 1) |
6017 | { | |
6018 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
6019 | procedures if they are passed by value. The tree type for them will | |
6020 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
6021 | what C would do with characters passed by-value. The value attribute | |
6022 | implies the dummy is a scalar. */ | |
6023 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
6024 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
6025 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
e032c2a1 | 6026 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
d20597cb TK |
6027 | |
6028 | /* Unused procedure passed as dummy argument. */ | |
6029 | if (sym->attr.flavor == FL_PROCEDURE) | |
6030 | { | |
6031 | if (!sym->attr.referenced) | |
6032 | { | |
73e42eef | 6033 | if (warn_unused_dummy_argument) |
48749dbc MLI |
6034 | gfc_warning (OPT_Wunused_dummy_argument, |
6035 | "Unused dummy argument %qs at %L", sym->name, | |
8b704316 | 6036 | &sym->declared_at); |
d20597cb TK |
6037 | } |
6038 | ||
6039 | /* Silence bogus "unused parameter" warnings from the | |
6040 | middle end. */ | |
6041 | if (sym->backend_decl != NULL_TREE) | |
6042 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
6043 | } | |
8b16d231 CR |
6044 | } |
6045 | ||
a8b3b0b6 CR |
6046 | /* Make sure we convert the types of the derived types from iso_c_binding |
6047 | into (void *). */ | |
6048 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
6049 | && sym->ts.type == BT_DERIVED) | |
6050 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
6de9cd9a DN |
6051 | } |
6052 | ||
5f673c6a TB |
6053 | |
6054 | static void | |
6055 | generate_local_nml_decl (gfc_symbol * sym) | |
6056 | { | |
6057 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
6058 | { | |
6059 | tree decl = generate_namelist_decl (sym); | |
6060 | pushdecl (decl); | |
6061 | } | |
6062 | } | |
6063 | ||
6064 | ||
6de9cd9a DN |
6065 | static void |
6066 | generate_local_vars (gfc_namespace * ns) | |
6067 | { | |
6068 | gfc_traverse_ns (ns, generate_local_decl); | |
5f673c6a | 6069 | gfc_traverse_ns (ns, generate_local_nml_decl); |
6de9cd9a DN |
6070 | } |
6071 | ||
6072 | ||
3d79abbd PB |
6073 | /* Generate a switch statement to jump to the correct entry point. Also |
6074 | creates the label decls for the entry points. */ | |
6de9cd9a | 6075 | |
3d79abbd PB |
6076 | static tree |
6077 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
6de9cd9a | 6078 | { |
3d79abbd PB |
6079 | stmtblock_t block; |
6080 | tree label; | |
6081 | tree tmp; | |
6082 | tree val; | |
6de9cd9a | 6083 | |
3d79abbd PB |
6084 | gfc_init_block (&block); |
6085 | for (; el; el = el->next) | |
6086 | { | |
6087 | /* Add the case label. */ | |
c006df4e | 6088 | label = gfc_build_label_decl (NULL_TREE); |
7d60be94 | 6089 | val = build_int_cst (gfc_array_index_type, el->id); |
3d528853 | 6090 | tmp = build_case_label (val, NULL_TREE, label); |
3d79abbd | 6091 | gfc_add_expr_to_block (&block, tmp); |
7389bce6 | 6092 | |
3d79abbd PB |
6093 | /* And jump to the actual entry point. */ |
6094 | label = gfc_build_label_decl (NULL_TREE); | |
3d79abbd PB |
6095 | tmp = build1_v (GOTO_EXPR, label); |
6096 | gfc_add_expr_to_block (&block, tmp); | |
6097 | ||
6098 | /* Save the label decl. */ | |
6099 | el->label = label; | |
6100 | } | |
6101 | tmp = gfc_finish_block (&block); | |
6102 | /* The first argument selects the entry point. */ | |
6103 | val = DECL_ARGUMENTS (current_function_decl); | |
9e851845 | 6104 | tmp = fold_build2_loc (input_location, SWITCH_EXPR, NULL_TREE, val, tmp); |
3d79abbd | 6105 | return tmp; |
6de9cd9a DN |
6106 | } |
6107 | ||
44de5aeb | 6108 | |
cadb8f42 DK |
6109 | /* Add code to string lengths of actual arguments passed to a function against |
6110 | the expected lengths of the dummy arguments. */ | |
6111 | ||
6112 | static void | |
6113 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
6114 | { | |
6115 | gfc_formal_arglist *formal; | |
6116 | ||
4cbc9039 | 6117 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
be94c034 | 6118 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
9be1227b | 6119 | && !formal->sym->ts.deferred) |
cadb8f42 DK |
6120 | { |
6121 | enum tree_code comparison; | |
6122 | tree cond; | |
6123 | tree argname; | |
6124 | gfc_symbol *fsym; | |
6125 | gfc_charlen *cl; | |
6126 | const char *message; | |
6127 | ||
6128 | fsym = formal->sym; | |
bc21d315 | 6129 | cl = fsym->ts.u.cl; |
cadb8f42 DK |
6130 | |
6131 | gcc_assert (cl); | |
6132 | gcc_assert (cl->passed_length != NULL_TREE); | |
6133 | gcc_assert (cl->backend_decl != NULL_TREE); | |
6134 | ||
6135 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
6136 | string lengths must match exactly. Otherwise, it is only required | |
cb7a8961 TB |
6137 | that the actual string length is *at least* the expected one. |
6138 | Sequence association allows for a mismatch of the string length | |
6139 | if the actual argument is (part of) an array, but only if the | |
6140 | dummy argument is an array. (See "Sequence association" in | |
6141 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
be94c034 | 6142 | if (fsym->attr.pointer || fsym->attr.allocatable |
c62c6622 TB |
6143 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
6144 | || fsym->as->type == AS_ASSUMED_RANK))) | |
cadb8f42 DK |
6145 | { |
6146 | comparison = NE_EXPR; | |
6147 | message = _("Actual string length does not match the declared one" | |
6148 | " for dummy argument '%s' (%ld/%ld)"); | |
6149 | } | |
cb7a8961 TB |
6150 | else if (fsym->as && fsym->as->rank != 0) |
6151 | continue; | |
cadb8f42 DK |
6152 | else |
6153 | { | |
6154 | comparison = LT_EXPR; | |
6155 | message = _("Actual string length is shorter than the declared one" | |
6156 | " for dummy argument '%s' (%ld/%ld)"); | |
6157 | } | |
6158 | ||
6159 | /* Build the condition. For optional arguments, an actual length | |
6160 | of 0 is also acceptable if the associated string is NULL, which | |
6161 | means the argument was not passed. */ | |
63ee5404 | 6162 | cond = fold_build2_loc (input_location, comparison, logical_type_node, |
bc98ed60 | 6163 | cl->passed_length, cl->backend_decl); |
cadb8f42 DK |
6164 | if (fsym->attr.optional) |
6165 | { | |
6166 | tree not_absent; | |
6167 | tree not_0length; | |
6168 | tree absent_failed; | |
6169 | ||
bc98ed60 | 6170 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
63ee5404 | 6171 | logical_type_node, |
bc98ed60 | 6172 | cl->passed_length, |
f622221a JB |
6173 | build_zero_cst |
6174 | (TREE_TYPE (cl->passed_length))); | |
702a738b PT |
6175 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
6176 | fsym->attr.referenced = 1; | |
6177 | not_absent = gfc_conv_expr_present (fsym); | |
cadb8f42 | 6178 | |
bc98ed60 | 6179 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
63ee5404 | 6180 | logical_type_node, not_0length, |
bc98ed60 | 6181 | not_absent); |
cadb8f42 | 6182 | |
bc98ed60 | 6183 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
63ee5404 | 6184 | logical_type_node, cond, absent_failed); |
cadb8f42 DK |
6185 | } |
6186 | ||
6187 | /* Build the runtime check. */ | |
6188 | argname = gfc_build_cstring_const (fsym->name); | |
6189 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
6190 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
6191 | message, argname, | |
6192 | fold_convert (long_integer_type_node, | |
6193 | cl->passed_length), | |
6194 | fold_convert (long_integer_type_node, | |
6195 | cl->backend_decl)); | |
6196 | } | |
6197 | } | |
6198 | ||
6199 | ||
092231a8 TB |
6200 | static void |
6201 | create_main_function (tree fndecl) | |
6202 | { | |
86c3c481 | 6203 | tree old_context; |
092231a8 TB |
6204 | tree ftn_main; |
6205 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
6206 | stmtblock_t body; | |
6207 | ||
86c3c481 TB |
6208 | old_context = current_function_decl; |
6209 | ||
6210 | if (old_context) | |
6211 | { | |
6212 | push_function_context (); | |
6213 | saved_parent_function_decls = saved_function_decls; | |
6214 | saved_function_decls = NULL_TREE; | |
6215 | } | |
6216 | ||
092231a8 TB |
6217 | /* main() function must be declared with global scope. */ |
6218 | gcc_assert (current_function_decl == NULL_TREE); | |
6219 | ||
6220 | /* Declare the function. */ | |
6221 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
6222 | build_pointer_type (pchar_type_node), | |
6223 | NULL_TREE); | |
a7ad6c2d | 6224 | main_identifier_node = get_identifier ("main"); |
c2255bc4 AH |
6225 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
6226 | main_identifier_node, tmp); | |
092231a8 TB |
6227 | DECL_EXTERNAL (ftn_main) = 0; |
6228 | TREE_PUBLIC (ftn_main) = 1; | |
6229 | TREE_STATIC (ftn_main) = 1; | |
6230 | DECL_ATTRIBUTES (ftn_main) | |
6231 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
6232 | ||
6233 | /* Setup the result declaration (for "return 0"). */ | |
c2255bc4 AH |
6234 | result_decl = build_decl (input_location, |
6235 | RESULT_DECL, NULL_TREE, integer_type_node); | |
092231a8 TB |
6236 | DECL_ARTIFICIAL (result_decl) = 1; |
6237 | DECL_IGNORED_P (result_decl) = 1; | |
6238 | DECL_CONTEXT (result_decl) = ftn_main; | |
6239 | DECL_RESULT (ftn_main) = result_decl; | |
6240 | ||
6241 | pushdecl (ftn_main); | |
6242 | ||
6243 | /* Get the arguments. */ | |
6244 | ||
6245 | arglist = NULL_TREE; | |
6246 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
6247 | ||
6248 | tmp = TREE_VALUE (typelist); | |
c2255bc4 | 6249 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
092231a8 TB |
6250 | DECL_CONTEXT (argc) = ftn_main; |
6251 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
6252 | TREE_READONLY (argc) = 1; | |
6253 | gfc_finish_decl (argc); | |
6254 | arglist = chainon (arglist, argc); | |
6255 | ||
6256 | typelist = TREE_CHAIN (typelist); | |
6257 | tmp = TREE_VALUE (typelist); | |
c2255bc4 | 6258 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
092231a8 TB |
6259 | DECL_CONTEXT (argv) = ftn_main; |
6260 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
6261 | TREE_READONLY (argv) = 1; | |
6262 | DECL_BY_REFERENCE (argv) = 1; | |
6263 | gfc_finish_decl (argv); | |
6264 | arglist = chainon (arglist, argv); | |
6265 | ||
6266 | DECL_ARGUMENTS (ftn_main) = arglist; | |
6267 | current_function_decl = ftn_main; | |
6268 | announce_function (ftn_main); | |
6269 | ||
6270 | rest_of_decl_compilation (ftn_main, 1, 0); | |
6271 | make_decl_rtl (ftn_main); | |
b6b27e98 | 6272 | allocate_struct_function (ftn_main, false); |
87a60f68 | 6273 | pushlevel (); |
092231a8 TB |
6274 | |
6275 | gfc_init_block (&body); | |
6276 | ||
1cc0e193 | 6277 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
092231a8 | 6278 | |
a8a5f4a9 | 6279 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
f19626cf | 6280 | if (flag_coarray == GFC_FCOARRAY_LIB) |
60386f50 TB |
6281 | { |
6282 | tree pint_type, pppchar_type; | |
6283 | pint_type = build_pointer_type (integer_type_node); | |
6284 | pppchar_type | |
6285 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
6286 | ||
a8a5f4a9 | 6287 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
60386f50 | 6288 | gfc_build_addr_expr (pint_type, argc), |
a8a5f4a9 | 6289 | gfc_build_addr_expr (pppchar_type, argv)); |
60386f50 TB |
6290 | gfc_add_expr_to_block (&body, tmp); |
6291 | } | |
6292 | ||
092231a8 | 6293 | /* Call _gfortran_set_args (argc, argv). */ |
86c3c481 TB |
6294 | TREE_USED (argc) = 1; |
6295 | TREE_USED (argv) = 1; | |
db3927fb AH |
6296 | tmp = build_call_expr_loc (input_location, |
6297 | gfor_fndecl_set_args, 2, argc, argv); | |
092231a8 TB |
6298 | gfc_add_expr_to_block (&body, tmp); |
6299 | ||
6300 | /* Add a call to set_options to set up the runtime library Fortran | |
6301 | language standard parameters. */ | |
6302 | { | |
6303 | tree array_type, array, var; | |
9771b263 | 6304 | vec<constructor_elt, va_gc> *v = NULL; |
75b07bb4 | 6305 | static const int noptions = 7; |
092231a8 | 6306 | |
75b07bb4 FXC |
6307 | /* Passing a new option to the library requires three modifications: |
6308 | + add it to the tree_cons list below | |
6309 | + change the noptions variable above | |
092231a8 TB |
6310 | + modify the library (runtime/compile_options.c)! */ |
6311 | ||
8748ad99 NF |
6312 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6313 | build_int_cst (integer_type_node, | |
6314 | gfc_option.warn_std)); | |
6315 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6316 | build_int_cst (integer_type_node, | |
6317 | gfc_option.allow_std)); | |
6318 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6319 | build_int_cst (integer_type_node, pedantic)); | |
8748ad99 | 6320 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
c61819ff | 6321 | build_int_cst (integer_type_node, flag_backtrace)); |
8748ad99 | 6322 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
c61819ff | 6323 | build_int_cst (integer_type_node, flag_sign_zero)); |
8748ad99 NF |
6324 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
6325 | build_int_cst (integer_type_node, | |
6326 | (gfc_option.rtcheck | |
6327 | & GFC_RTCHECK_BOUNDS))); | |
6328 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
6329 | build_int_cst (integer_type_node, | |
fa86f4f9 | 6330 | gfc_option.fpe_summary)); |
092231a8 | 6331 | |
75b07bb4 | 6332 | array_type = build_array_type_nelts (integer_type_node, noptions); |
8748ad99 | 6333 | array = build_constructor (array_type, v); |
092231a8 TB |
6334 | TREE_CONSTANT (array) = 1; |
6335 | TREE_STATIC (array) = 1; | |
6336 | ||
6337 | /* Create a static variable to hold the jump table. */ | |
059345ce | 6338 | var = build_decl (input_location, VAR_DECL, |
75b07bb4 | 6339 | create_tmp_var_name ("options"), array_type); |
059345ce BS |
6340 | DECL_ARTIFICIAL (var) = 1; |
6341 | DECL_IGNORED_P (var) = 1; | |
092231a8 TB |
6342 | TREE_CONSTANT (var) = 1; |
6343 | TREE_STATIC (var) = 1; | |
6344 | TREE_READONLY (var) = 1; | |
6345 | DECL_INITIAL (var) = array; | |
059345ce | 6346 | pushdecl (var); |
092231a8 TB |
6347 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
6348 | ||
db3927fb AH |
6349 | tmp = build_call_expr_loc (input_location, |
6350 | gfor_fndecl_set_options, 2, | |
75b07bb4 | 6351 | build_int_cst (integer_type_node, noptions), var); |
092231a8 TB |
6352 | gfc_add_expr_to_block (&body, tmp); |
6353 | } | |
6354 | ||
6355 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
6356 | the library will raise a FPE when needed. */ | |
6357 | if (gfc_option.fpe != 0) | |
6358 | { | |
db3927fb AH |
6359 | tmp = build_call_expr_loc (input_location, |
6360 | gfor_fndecl_set_fpe, 1, | |
092231a8 TB |
6361 | build_int_cst (integer_type_node, |
6362 | gfc_option.fpe)); | |
6363 | gfc_add_expr_to_block (&body, tmp); | |
6364 | } | |
6365 | ||
6366 | /* If this is the main program and an -fconvert option was provided, | |
6367 | add a call to set_convert. */ | |
6368 | ||
f19626cf | 6369 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
092231a8 | 6370 | { |
db3927fb AH |
6371 | tmp = build_call_expr_loc (input_location, |
6372 | gfor_fndecl_set_convert, 1, | |
f19626cf | 6373 | build_int_cst (integer_type_node, flag_convert)); |
092231a8 TB |
6374 | gfc_add_expr_to_block (&body, tmp); |
6375 | } | |
6376 | ||
6377 | /* If this is the main program and an -frecord-marker option was provided, | |
6378 | add a call to set_record_marker. */ | |
6379 | ||
203c7ebf | 6380 | if (flag_record_marker != 0) |
092231a8 | 6381 | { |
db3927fb AH |
6382 | tmp = build_call_expr_loc (input_location, |
6383 | gfor_fndecl_set_record_marker, 1, | |
092231a8 | 6384 | build_int_cst (integer_type_node, |
203c7ebf | 6385 | flag_record_marker)); |
092231a8 TB |
6386 | gfc_add_expr_to_block (&body, tmp); |
6387 | } | |
6388 | ||
203c7ebf | 6389 | if (flag_max_subrecord_length != 0) |
092231a8 | 6390 | { |
db3927fb AH |
6391 | tmp = build_call_expr_loc (input_location, |
6392 | gfor_fndecl_set_max_subrecord_length, 1, | |
092231a8 | 6393 | build_int_cst (integer_type_node, |
203c7ebf | 6394 | flag_max_subrecord_length)); |
092231a8 TB |
6395 | gfc_add_expr_to_block (&body, tmp); |
6396 | } | |
6397 | ||
6398 | /* Call MAIN__(). */ | |
db3927fb AH |
6399 | tmp = build_call_expr_loc (input_location, |
6400 | fndecl, 0); | |
092231a8 TB |
6401 | gfc_add_expr_to_block (&body, tmp); |
6402 | ||
86c3c481 TB |
6403 | /* Mark MAIN__ as used. */ |
6404 | TREE_USED (fndecl) = 1; | |
6405 | ||
60386f50 | 6406 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
f19626cf | 6407 | if (flag_coarray == GFC_FCOARRAY_LIB) |
8b704316 | 6408 | { |
60386f50 TB |
6409 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
6410 | gfc_add_expr_to_block (&body, tmp); | |
6411 | } | |
6412 | ||
092231a8 | 6413 | /* "return 0". */ |
bc98ed60 TB |
6414 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
6415 | DECL_RESULT (ftn_main), | |
6416 | build_int_cst (integer_type_node, 0)); | |
092231a8 TB |
6417 | tmp = build1_v (RETURN_EXPR, tmp); |
6418 | gfc_add_expr_to_block (&body, tmp); | |
6419 | ||
6420 | ||
6421 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
6422 | decl = getdecls (); | |
6423 | ||
6424 | /* Finish off this function and send it for code generation. */ | |
87a60f68 | 6425 | poplevel (1, 1); |
092231a8 TB |
6426 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
6427 | ||
6428 | DECL_SAVED_TREE (ftn_main) | |
6429 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
6430 | DECL_INITIAL (ftn_main)); | |
6431 | ||
6432 | /* Output the GENERIC tree. */ | |
6433 | dump_function (TDI_original, ftn_main); | |
6434 | ||
3dafb85c | 6435 | cgraph_node::finalize_function (ftn_main, true); |
86c3c481 TB |
6436 | |
6437 | if (old_context) | |
6438 | { | |
6439 | pop_function_context (); | |
6440 | saved_function_decls = saved_parent_function_decls; | |
6441 | } | |
6442 | current_function_decl = old_context; | |
092231a8 TB |
6443 | } |
6444 | ||
6445 | ||
d74d8807 DK |
6446 | /* Generate an appropriate return-statement for a procedure. */ |
6447 | ||
6448 | tree | |
6449 | gfc_generate_return (void) | |
6450 | { | |
6451 | gfc_symbol* sym; | |
6452 | tree result; | |
6453 | tree fndecl; | |
6454 | ||
6455 | sym = current_procedure_symbol; | |
6456 | fndecl = sym->backend_decl; | |
6457 | ||
6458 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
6459 | result = NULL_TREE; | |
6460 | else | |
6461 | { | |
6462 | result = get_proc_result (sym); | |
6463 | ||
6464 | /* Set the return value to the dummy result variable. The | |
6465 | types may be different for scalar default REAL functions | |
6466 | with -ff2c, therefore we have to convert. */ | |
6467 | if (result != NULL_TREE) | |
6468 | { | |
6469 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
bc98ed60 TB |
6470 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
6471 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
6472 | result); | |
d74d8807 | 6473 | } |
e0af8f52 SK |
6474 | else |
6475 | { | |
6476 | /* If the function does not have a result variable, result is | |
6477 | NULL_TREE, and a 'return' is generated without a variable. | |
6478 | The following generates a 'return __result_XXX' where XXX is | |
6479 | the function name. */ | |
6480 | if (sym == sym->result && sym->attr.function) | |
6481 | { | |
6482 | result = gfc_get_fake_result_decl (sym, 0); | |
6483 | result = fold_build2_loc (input_location, MODIFY_EXPR, | |
6484 | TREE_TYPE (result), | |
6485 | DECL_RESULT (fndecl), result); | |
6486 | } | |
6487 | } | |
d74d8807 DK |
6488 | } |
6489 | ||
6490 | return build1_v (RETURN_EXPR, result); | |
6491 | } | |
6492 | ||
6493 | ||
8b198102 FXC |
6494 | static void |
6495 | is_from_ieee_module (gfc_symbol *sym) | |
6496 | { | |
6497 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
6498 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
6499 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
6500 | seen_ieee_symbol = 1; | |
6501 | } | |
6502 | ||
6503 | ||
6504 | static int | |
6505 | is_ieee_module_used (gfc_namespace *ns) | |
6506 | { | |
6507 | seen_ieee_symbol = 0; | |
6508 | gfc_traverse_ns (ns, is_from_ieee_module); | |
6509 | return seen_ieee_symbol; | |
6510 | } | |
6511 | ||
6512 | ||
dc7a8b4b JN |
6513 | static gfc_omp_clauses *module_oacc_clauses; |
6514 | ||
6515 | ||
6516 | static void | |
6517 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
6518 | { | |
6519 | gfc_omp_namelist *n; | |
6520 | ||
6521 | n = gfc_get_omp_namelist (); | |
6522 | n->sym = sym; | |
6523 | n->u.map_op = map_op; | |
6524 | ||
6525 | if (!module_oacc_clauses) | |
6526 | module_oacc_clauses = gfc_get_omp_clauses (); | |
6527 | ||
6528 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
6529 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
6530 | ||
6531 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
6532 | } | |
6533 | ||
6534 | ||
6535 | static void | |
6536 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
6537 | { | |
6538 | if (sym->attr.use_assoc) | |
6539 | { | |
6540 | gfc_omp_map_op map_op; | |
6541 | ||
6542 | if (sym->attr.oacc_declare_create) | |
6543 | map_op = OMP_MAP_FORCE_ALLOC; | |
6544 | ||
6545 | if (sym->attr.oacc_declare_copyin) | |
6546 | map_op = OMP_MAP_FORCE_TO; | |
6547 | ||
6548 | if (sym->attr.oacc_declare_deviceptr) | |
6549 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
6550 | ||
6551 | if (sym->attr.oacc_declare_device_resident) | |
6552 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
6553 | ||
6554 | if (sym->attr.oacc_declare_create | |
6555 | || sym->attr.oacc_declare_copyin | |
6556 | || sym->attr.oacc_declare_deviceptr | |
6557 | || sym->attr.oacc_declare_device_resident) | |
6558 | { | |
6559 | sym->attr.referenced = 1; | |
6560 | add_clause (sym, map_op); | |
6561 | } | |
6562 | } | |
6563 | } | |
6564 | ||
6565 | ||
6566 | void | |
6567 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
6568 | { | |
6569 | gfc_code *code; | |
6570 | gfc_oacc_declare *oc; | |
6571 | locus where = gfc_current_locus; | |
6572 | gfc_omp_clauses *omp_clauses = NULL; | |
6573 | gfc_omp_namelist *n, *p; | |
6574 | ||
8701b671 | 6575 | module_oacc_clauses = NULL; |
dc7a8b4b JN |
6576 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); |
6577 | ||
6578 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
6579 | { | |
6580 | gfc_oacc_declare *new_oc; | |
6581 | ||
6582 | new_oc = gfc_get_oacc_declare (); | |
6583 | new_oc->next = ns->oacc_declare; | |
6584 | new_oc->clauses = module_oacc_clauses; | |
6585 | ||
6586 | ns->oacc_declare = new_oc; | |
dc7a8b4b JN |
6587 | } |
6588 | ||
6589 | if (!ns->oacc_declare) | |
6590 | return; | |
6591 | ||
6592 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
6593 | { | |
6594 | if (oc->module_var) | |
6595 | continue; | |
6596 | ||
6597 | if (block) | |
e711928b | 6598 | gfc_error ("Sorry, !$ACC DECLARE at %L is not allowed " |
dc7a8b4b JN |
6599 | "in BLOCK construct", &oc->loc); |
6600 | ||
6601 | ||
6602 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
6603 | { | |
6604 | if (omp_clauses == NULL) | |
6605 | { | |
6606 | omp_clauses = oc->clauses; | |
6607 | continue; | |
6608 | } | |
6609 | ||
6610 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
6611 | ; | |
6612 | ||
6613 | gcc_assert (p->next == NULL); | |
6614 | ||
6615 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
6616 | omp_clauses = oc->clauses; | |
6617 | } | |
6618 | } | |
6619 | ||
6620 | if (!omp_clauses) | |
6621 | return; | |
6622 | ||
6623 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6624 | { | |
6625 | switch (n->u.map_op) | |
6626 | { | |
6627 | case OMP_MAP_DEVICE_RESIDENT: | |
6628 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6629 | break; | |
6630 | ||
6631 | default: | |
6632 | break; | |
6633 | } | |
6634 | } | |
6635 | ||
6636 | code = XCNEW (gfc_code); | |
6637 | code->op = EXEC_OACC_DECLARE; | |
6638 | code->loc = where; | |
6639 | ||
6640 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6641 | code->ext.oacc_declare->clauses = omp_clauses; | |
6642 | ||
6643 | code->block = XCNEW (gfc_code); | |
6644 | code->block->op = EXEC_OACC_DECLARE; | |
6645 | code->block->loc = where; | |
6646 | ||
6647 | if (ns->code) | |
6648 | code->block->next = ns->code; | |
6649 | ||
6650 | ns->code = code; | |
6651 | ||
6652 | return; | |
6653 | } | |
6654 | ||
6655 | ||
6de9cd9a DN |
6656 | /* Generate code for a function. */ |
6657 | ||
6658 | void | |
6659 | gfc_generate_function_code (gfc_namespace * ns) | |
6660 | { | |
6661 | tree fndecl; | |
6662 | tree old_context; | |
6663 | tree decl; | |
6664 | tree tmp; | |
8b198102 | 6665 | tree fpstate = NULL_TREE; |
d74d8807 | 6666 | stmtblock_t init, cleanup; |
6de9cd9a | 6667 | stmtblock_t body; |
d74d8807 | 6668 | gfc_wrapped_block try_block; |
702a738b | 6669 | tree recurcheckvar = NULL_TREE; |
6de9cd9a | 6670 | gfc_symbol *sym; |
d74d8807 | 6671 | gfc_symbol *previous_procedure_symbol; |
8b198102 | 6672 | int rank, ieee; |
cf7d2eb0 | 6673 | bool is_recursive; |
6de9cd9a DN |
6674 | |
6675 | sym = ns->proc_name; | |
d74d8807 DK |
6676 | previous_procedure_symbol = current_procedure_symbol; |
6677 | current_procedure_symbol = sym; | |
3d79abbd | 6678 | |
345bd7eb PT |
6679 | /* Initialize sym->tlink so that gfc_trans_deferred_vars does not get |
6680 | lost or worse. */ | |
6de9cd9a DN |
6681 | sym->tlink = sym; |
6682 | ||
6683 | /* Create the declaration for functions with global scope. */ | |
6684 | if (!sym->backend_decl) | |
fb55ca75 | 6685 | gfc_create_function_decl (ns, false); |
6de9cd9a DN |
6686 | |
6687 | fndecl = sym->backend_decl; | |
6688 | old_context = current_function_decl; | |
6689 | ||
6690 | if (old_context) | |
6691 | { | |
6692 | push_function_context (); | |
6693 | saved_parent_function_decls = saved_function_decls; | |
6694 | saved_function_decls = NULL_TREE; | |
6695 | } | |
6696 | ||
3d79abbd | 6697 | trans_function_start (sym); |
6de9cd9a | 6698 | |
d74d8807 | 6699 | gfc_init_block (&init); |
6de9cd9a | 6700 | |
d198b59a JJ |
6701 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6702 | { | |
6703 | /* Copy length backend_decls to all entry point result | |
6704 | symbols. */ | |
6705 | gfc_entry_list *el; | |
6706 | tree backend_decl; | |
6707 | ||
bc21d315 JW |
6708 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6709 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
d198b59a | 6710 | for (el = ns->entries; el; el = el->next) |
bc21d315 | 6711 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
d198b59a JJ |
6712 | } |
6713 | ||
6de9cd9a DN |
6714 | /* Translate COMMON blocks. */ |
6715 | gfc_trans_common (ns); | |
6716 | ||
5f20c93a PT |
6717 | /* Null the parent fake result declaration if this namespace is |
6718 | a module function or an external procedures. */ | |
6719 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6720 | || ns->parent == NULL) | |
6721 | parent_fake_result_decl = NULL_TREE; | |
6722 | ||
30aabb86 PT |
6723 | gfc_generate_contained_functions (ns); |
6724 | ||
b8ff4e88 | 6725 | has_coarray_vars = false; |
6de9cd9a | 6726 | generate_local_vars (ns); |
7389bce6 | 6727 | |
f19626cf | 6728 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
6729 | generate_coarray_init (ns); |
6730 | ||
5f20c93a PT |
6731 | /* Keep the parent fake result declaration in module functions |
6732 | or external procedures. */ | |
6733 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6734 | || ns->parent == NULL) | |
6735 | current_fake_result_decl = parent_fake_result_decl; | |
6736 | else | |
6737 | current_fake_result_decl = NULL_TREE; | |
6738 | ||
d74d8807 DK |
6739 | is_recursive = sym->attr.recursive |
6740 | || (sym->attr.entry_master | |
6741 | && sym->ns->entries->sym->attr.recursive); | |
6742 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
c61819ff | 6743 | && !is_recursive && !flag_recursive) |
d74d8807 DK |
6744 | { |
6745 | char * msg; | |
6746 | ||
1a33dc9e UB |
6747 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6748 | sym->name); | |
63ee5404 | 6749 | recurcheckvar = gfc_create_var (logical_type_node, "is_recursive"); |
d74d8807 | 6750 | TREE_STATIC (recurcheckvar) = 1; |
63ee5404 | 6751 | DECL_INITIAL (recurcheckvar) = logical_false_node; |
d74d8807 DK |
6752 | gfc_add_expr_to_block (&init, recurcheckvar); |
6753 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6754 | &sym->declared_at, msg); | |
63ee5404 | 6755 | gfc_add_modify (&init, recurcheckvar, logical_true_node); |
cede9502 | 6756 | free (msg); |
d74d8807 | 6757 | } |
6de9cd9a | 6758 | |
8b198102 FXC |
6759 | /* Check if an IEEE module is used in the procedure. If so, save |
6760 | the floating point state. */ | |
6761 | ieee = is_ieee_module_used (ns); | |
6762 | if (ieee) | |
3b7ea188 | 6763 | fpstate = gfc_save_fp_state (&init); |
8b198102 | 6764 | |
6de9cd9a DN |
6765 | /* Now generate the code for the body of this function. */ |
6766 | gfc_init_block (&body); | |
6767 | ||
6768 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
d74d8807 | 6769 | && sym->attr.subroutine) |
6de9cd9a DN |
6770 | { |
6771 | tree alternate_return; | |
5f20c93a | 6772 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
726a989a | 6773 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
6de9cd9a DN |
6774 | } |
6775 | ||
3d79abbd PB |
6776 | if (ns->entries) |
6777 | { | |
6778 | /* Jump to the correct entry point. */ | |
6779 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6780 | gfc_add_expr_to_block (&body, tmp); | |
6781 | } | |
6782 | ||
cadb8f42 DK |
6783 | /* If bounds-checking is enabled, generate code to check passed in actual |
6784 | arguments against the expected dummy argument attributes (e.g. string | |
6785 | lengths). */ | |
975d3303 | 6786 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
cadb8f42 DK |
6787 | add_argument_checking (&body, sym); |
6788 | ||
dc7a8b4b | 6789 | finish_oacc_declare (ns, sym, false); |
41dbbb37 | 6790 | |
6de9cd9a DN |
6791 | tmp = gfc_trans_code (ns->code); |
6792 | gfc_add_expr_to_block (&body, tmp); | |
6793 | ||
c16126ac AV |
6794 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6795 | || (sym->result && sym->result != sym | |
6796 | && sym->result->ts.type == BT_DERIVED | |
6797 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
6de9cd9a | 6798 | { |
c16126ac | 6799 | bool artificial_result_decl = false; |
d74d8807 | 6800 | tree result = get_proc_result (sym); |
c16126ac AV |
6801 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6802 | ||
6803 | /* Make sure that a function returning an object with | |
6804 | alloc/pointer_components always has a result, where at least | |
6805 | the allocatable/pointer components are set to zero. */ | |
6806 | if (result == NULL_TREE && sym->attr.function | |
6807 | && ((sym->result->ts.type == BT_DERIVED | |
6808 | && (sym->attr.allocatable | |
6809 | || sym->attr.pointer | |
6810 | || sym->result->ts.u.derived->attr.alloc_comp | |
6811 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6812 | || (sym->result->ts.type == BT_CLASS | |
6813 | && (CLASS_DATA (sym)->attr.allocatable | |
6814 | || CLASS_DATA (sym)->attr.class_pointer | |
6815 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6816 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6817 | { | |
6818 | artificial_result_decl = true; | |
6819 | result = gfc_get_fake_result_decl (sym, 0); | |
6820 | } | |
6de9cd9a | 6821 | |
7a3eeb85 | 6822 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
5046aff5 | 6823 | { |
f18694de TB |
6824 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6825 | && sym->result == sym) | |
6826 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6827 | null_pointer_node)); | |
7a3eeb85 JW |
6828 | else if (sym->ts.type == BT_CLASS |
6829 | && CLASS_DATA (sym)->attr.allocatable | |
102344e2 TB |
6830 | && CLASS_DATA (sym)->attr.dimension == 0 |
6831 | && sym->result == sym) | |
7a3eeb85 JW |
6832 | { |
6833 | tmp = CLASS_DATA (sym)->backend_decl; | |
6834 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6835 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6836 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6837 | null_pointer_node)); | |
6838 | } | |
f18694de | 6839 | else if (sym->ts.type == BT_DERIVED |
7a3eeb85 | 6840 | && !sym->attr.allocatable) |
5b130807 | 6841 | { |
c16126ac AV |
6842 | gfc_expr *init_exp; |
6843 | /* Arrays are not initialized using the default initializer of | |
6844 | their elements. Therefore only check if a default | |
6845 | initializer is available when the result is scalar. */ | |
7fc61626 FR |
6846 | init_exp = rsym->as ? NULL |
6847 | : gfc_generate_initializer (&rsym->ts, true); | |
c16126ac AV |
6848 | if (init_exp) |
6849 | { | |
6850 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6851 | gfc_free_expr (init_exp); | |
6852 | gfc_add_expr_to_block (&init, tmp); | |
6853 | } | |
6854 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6855 | { | |
6856 | rank = rsym->as ? rsym->as->rank : 0; | |
6857 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6858 | rank); | |
6859 | gfc_prepend_expr_to_block (&body, tmp); | |
6860 | } | |
5b130807 | 6861 | } |
958dd42b | 6862 | } |
cf7d2eb0 | 6863 | |
c16126ac | 6864 | if (result == NULL_TREE || artificial_result_decl) |
766d0c8c DF |
6865 | { |
6866 | /* TODO: move to the appropriate place in resolve.c. */ | |
134d2354 | 6867 | if (warn_return_type > 0 && sym == sym->result) |
48749dbc MLI |
6868 | gfc_warning (OPT_Wreturn_type, |
6869 | "Return value of function %qs at %L not set", | |
766d0c8c | 6870 | sym->name, &sym->declared_at); |
134d2354 | 6871 | if (warn_return_type > 0) |
fba5ace0 | 6872 | TREE_NO_WARNING(sym->backend_decl) = 1; |
766d0c8c | 6873 | } |
c16126ac | 6874 | if (result != NULL_TREE) |
d74d8807 | 6875 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
6de9cd9a | 6876 | } |
d74d8807 DK |
6877 | |
6878 | gfc_init_block (&cleanup); | |
6879 | ||
6880 | /* Reset recursion-check variable. */ | |
6881 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
c61819ff | 6882 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
cf7d2eb0 | 6883 | { |
63ee5404 | 6884 | gfc_add_modify (&cleanup, recurcheckvar, logical_false_node); |
d74d8807 | 6885 | recurcheckvar = NULL; |
cf7d2eb0 | 6886 | } |
5046aff5 | 6887 | |
8b198102 FXC |
6888 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6889 | if (ieee) | |
3b7ea188 | 6890 | gfc_restore_fp_state (&cleanup, fpstate); |
8b198102 | 6891 | |
d74d8807 DK |
6892 | /* Finish the function body and add init and cleanup code. */ |
6893 | tmp = gfc_finish_block (&body); | |
6894 | gfc_start_wrapped_block (&try_block, tmp); | |
6895 | /* Add code to create and cleanup arrays. */ | |
6896 | gfc_trans_deferred_vars (sym, &try_block); | |
6897 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6898 | gfc_finish_block (&cleanup)); | |
6de9cd9a DN |
6899 | |
6900 | /* Add all the decls we created during processing. */ | |
79a592e3 | 6901 | decl = nreverse (saved_function_decls); |
6de9cd9a DN |
6902 | while (decl) |
6903 | { | |
6904 | tree next; | |
6905 | ||
910ad8de NF |
6906 | next = DECL_CHAIN (decl); |
6907 | DECL_CHAIN (decl) = NULL_TREE; | |
755634e6 | 6908 | pushdecl (decl); |
6de9cd9a DN |
6909 | decl = next; |
6910 | } | |
6911 | saved_function_decls = NULL_TREE; | |
6912 | ||
d74d8807 | 6913 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
c7c79a09 | 6914 | decl = getdecls (); |
6de9cd9a DN |
6915 | |
6916 | /* Finish off this function and send it for code generation. */ | |
87a60f68 | 6917 | poplevel (1, 1); |
6de9cd9a DN |
6918 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6919 | ||
c7c79a09 JJ |
6920 | DECL_SAVED_TREE (fndecl) |
6921 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6922 | DECL_INITIAL (fndecl)); | |
6923 | ||
6de9cd9a DN |
6924 | /* Output the GENERIC tree. */ |
6925 | dump_function (TDI_original, fndecl); | |
6926 | ||
6927 | /* Store the end of the function, so that we get good line number | |
6928 | info for the epilogue. */ | |
6929 | cfun->function_end_locus = input_location; | |
6930 | ||
6931 | /* We're leaving the context of this function, so zap cfun. | |
6932 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6933 | tree_rest_of_compilation. */ | |
db2960f4 | 6934 | set_cfun (NULL); |
6de9cd9a DN |
6935 | |
6936 | if (old_context) | |
6937 | { | |
6938 | pop_function_context (); | |
6939 | saved_function_decls = saved_parent_function_decls; | |
6940 | } | |
6941 | current_function_decl = old_context; | |
6942 | ||
15682f24 MJ |
6943 | if (decl_function_context (fndecl)) |
6944 | { | |
6945 | /* Register this function with cgraph just far enough to get it | |
6946 | added to our parent's nested function list. | |
6947 | If there are static coarrays in this function, the nested _caf_init | |
6948 | function has already called cgraph_create_node, which also created | |
6949 | the cgraph node for this function. */ | |
f19626cf | 6950 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
e7980add | 6951 | (void) cgraph_node::get_create (fndecl); |
15682f24 | 6952 | } |
6de9cd9a | 6953 | else |
3dafb85c | 6954 | cgraph_node::finalize_function (fndecl, true); |
a64f5186 JJ |
6955 | |
6956 | gfc_trans_use_stmts (ns); | |
bd11e37d | 6957 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
092231a8 TB |
6958 | |
6959 | if (sym->attr.is_main_program) | |
6960 | create_main_function (fndecl); | |
d74d8807 DK |
6961 | |
6962 | current_procedure_symbol = previous_procedure_symbol; | |
6de9cd9a DN |
6963 | } |
6964 | ||
092231a8 | 6965 | |
6de9cd9a DN |
6966 | void |
6967 | gfc_generate_constructors (void) | |
6968 | { | |
6e45f57b | 6969 | gcc_assert (gfc_static_ctors == NULL_TREE); |
6de9cd9a DN |
6970 | #if 0 |
6971 | tree fnname; | |
6972 | tree type; | |
6973 | tree fndecl; | |
6974 | tree decl; | |
6975 | tree tmp; | |
6976 | ||
6977 | if (gfc_static_ctors == NULL_TREE) | |
6978 | return; | |
6979 | ||
5880f14f | 6980 | fnname = get_file_function_name ("I"); |
b64fca63 | 6981 | type = build_function_type_list (void_type_node, NULL_TREE); |
6de9cd9a | 6982 | |
c2255bc4 AH |
6983 | fndecl = build_decl (input_location, |
6984 | FUNCTION_DECL, fnname, type); | |
6de9cd9a DN |
6985 | TREE_PUBLIC (fndecl) = 1; |
6986 | ||
c2255bc4 AH |
6987 | decl = build_decl (input_location, |
6988 | RESULT_DECL, NULL_TREE, void_type_node); | |
b785f485 RH |
6989 | DECL_ARTIFICIAL (decl) = 1; |
6990 | DECL_IGNORED_P (decl) = 1; | |
6de9cd9a DN |
6991 | DECL_CONTEXT (decl) = fndecl; |
6992 | DECL_RESULT (fndecl) = decl; | |
6993 | ||
6994 | pushdecl (fndecl); | |
6995 | ||
6996 | current_function_decl = fndecl; | |
6997 | ||
0e6df31e | 6998 | rest_of_decl_compilation (fndecl, 1, 0); |
6de9cd9a | 6999 | |
0e6df31e | 7000 | make_decl_rtl (fndecl); |
6de9cd9a | 7001 | |
b6b27e98 | 7002 | allocate_struct_function (fndecl, false); |
6de9cd9a | 7003 | |
87a60f68 | 7004 | pushlevel (); |
6de9cd9a DN |
7005 | |
7006 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
7007 | { | |
db3927fb AH |
7008 | tmp = build_call_expr_loc (input_location, |
7009 | TREE_VALUE (gfc_static_ctors), 0); | |
c2255bc4 | 7010 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
6de9cd9a DN |
7011 | } |
7012 | ||
c7c79a09 | 7013 | decl = getdecls (); |
87a60f68 | 7014 | poplevel (1, 1); |
6de9cd9a DN |
7015 | |
7016 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
c7c79a09 JJ |
7017 | DECL_SAVED_TREE (fndecl) |
7018 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
7019 | DECL_INITIAL (fndecl)); | |
6de9cd9a DN |
7020 | |
7021 | free_after_parsing (cfun); | |
7022 | free_after_compilation (cfun); | |
7023 | ||
0f0377f6 | 7024 | tree_rest_of_compilation (fndecl); |
6de9cd9a DN |
7025 | |
7026 | current_function_decl = NULL_TREE; | |
7027 | #endif | |
7028 | } | |
7029 | ||
0de4325e TS |
7030 | /* Translates a BLOCK DATA program unit. This means emitting the |
7031 | commons contained therein plus their initializations. We also emit | |
7032 | a globally visible symbol to make sure that each BLOCK DATA program | |
7033 | unit remains unique. */ | |
7034 | ||
7035 | void | |
7036 | gfc_generate_block_data (gfc_namespace * ns) | |
7037 | { | |
7038 | tree decl; | |
7039 | tree id; | |
7040 | ||
c8cc8542 PB |
7041 | /* Tell the backend the source location of the block data. */ |
7042 | if (ns->proc_name) | |
7043 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
7044 | else | |
7045 | gfc_set_backend_locus (&gfc_current_locus); | |
7046 | ||
7047 | /* Process the DATA statements. */ | |
0de4325e TS |
7048 | gfc_trans_common (ns); |
7049 | ||
c8cc8542 PB |
7050 | /* Create a global symbol with the mane of the block data. This is to |
7051 | generate linker errors if the same name is used twice. It is never | |
7052 | really used. */ | |
0de4325e TS |
7053 | if (ns->proc_name) |
7054 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
7055 | else | |
7056 | id = get_identifier ("__BLOCK_DATA__"); | |
7057 | ||
c2255bc4 AH |
7058 | decl = build_decl (input_location, |
7059 | VAR_DECL, id, gfc_array_index_type); | |
0de4325e TS |
7060 | TREE_PUBLIC (decl) = 1; |
7061 | TREE_STATIC (decl) = 1; | |
a64f5186 | 7062 | DECL_IGNORED_P (decl) = 1; |
0de4325e TS |
7063 | |
7064 | pushdecl (decl); | |
7065 | rest_of_decl_compilation (decl, 1, 0); | |
7066 | } | |
7067 | ||
83d890b9 | 7068 | |
9abe5e56 DK |
7069 | /* Process the local variables of a BLOCK construct. */ |
7070 | ||
7071 | void | |
6312ef45 | 7072 | gfc_process_block_locals (gfc_namespace* ns) |
9abe5e56 DK |
7073 | { |
7074 | tree decl; | |
7075 | ||
fa9371ca | 7076 | saved_local_decls = NULL_TREE; |
b8ff4e88 TB |
7077 | has_coarray_vars = false; |
7078 | ||
9abe5e56 DK |
7079 | generate_local_vars (ns); |
7080 | ||
f19626cf | 7081 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
b8ff4e88 TB |
7082 | generate_coarray_init (ns); |
7083 | ||
79a592e3 | 7084 | decl = nreverse (saved_local_decls); |
9abe5e56 DK |
7085 | while (decl) |
7086 | { | |
7087 | tree next; | |
7088 | ||
910ad8de NF |
7089 | next = DECL_CHAIN (decl); |
7090 | DECL_CHAIN (decl) = NULL_TREE; | |
9abe5e56 DK |
7091 | pushdecl (decl); |
7092 | decl = next; | |
7093 | } | |
7094 | saved_local_decls = NULL_TREE; | |
7095 | } | |
7096 | ||
7097 | ||
6de9cd9a | 7098 | #include "gt-fortran-trans-decl.h" |